The present application relates to a hot bed leveling device and a 3D printing apparatus. The hot bed leveling device comprises a hot bed assembly (100), sensors (200), and a printing head (300), wherein the hot bed assembly (100) comprises a hot bed plate (110) and a support plate (120), cantilever members (130) are provided on the support plate (120), and the hot bed plate (110) is connected to the cantilever members (130); the sensors (200) are arranged on the respective cantilever members (130) and configured to measure the amount of deformation of the cantilever members (130); the printing head (300) is located on the side of the hot bed plate (110) away from the support plate (120), the printing head (300) can move relative to the hot bed plate (110), and the printing head (300) is configured to alternately abut against different positions of the hot bed plate (110); and when the printing head (300) abuts against the hot bed plate (110), the cantilever members (130) deform to trigger the sensors (200).
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
2.
DETECTION ASSEMBLY, LASER MODULE, LASER EMISSION CONTROL METHOD, AND LASER PROCESSING EQUIPMENT
The present application relates to a technique field of laser processing, aiming to solve problem of lens defects or impurities affecting normal laser emission during laser processing or causing excessive absorption of laser energy by the lens. The application discloses a detection assembly, laser module, laser emission control method, and laser processing equipment. The detection assembly includes a first circuit board. The first circuit board includes a substrate and a temperature sensor. The substrate is provided with a first via allowing laser emitted by the laser generator to pass. The temperature sensor is positioned on a surface of the substrate outside the first via and is directly or indirectly thermally coupled to a to-be-inspected lens located in a laser path of the laser generator. The beneficial effect of the present application is the ability to detect the temperature of the lens conveniently without affecting the laser emission.
The present application relates to the field of 3D printing, and is used for detecting some abnormal feeding states during FDM 3D printing processes. In one aspect, provided is a 3D printing consumable test apparatus, comprising a housing, a multi-pole magnet, a pressing module and a sensor. In another aspect, provided is 3D printing apparatus comprising said 3D printing consumable test apparatus. The housing defines a pathway for allowing a consumable to pass through. The multi-pole magnet is rotatably arranged in the housing. The pressing module is matched with the multi-pole magnet and can press the multi-pole magnet against the consumable passing through the pathway. The sensor is arranged in the housing, and can sense the rotating state of the multi-pole magnet, the rotating state being used for judging the feeding state of the consumable. The present application has a beneficial effect of being capable of determining the feeding state of consumables.
Provided in the embodiments of the present application is a photo-curing 3D printing device, by means of which liquid photo-curing resin is cured by means of light irradiation to achieve 3D printing. The photo-curing 3D printing device comprises: a body cover, which defines an internal space; and a first circulation assembly, which is arranged in the internal space for heating and filtering the gas in the internal space, wherein a first gas cavity is defined inside the first circulation assembly; the first circulation assembly comprises a first gas driving unit, a heating unit and a first filtering unit, which are arranged in the first gas cavity and spaced apart from each other; and the first gas driving unit is configured such that the gas outside the first gas cavity is sucked into the first gas cavity, passes through the heating unit and the first filtering unit, and is then delivered to the outside of the first gas cavity. The photo-curing 3D printing device can perform filtration, purification and temperature control for the internal gas environment.
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B01D 46/62 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
B01D 53/00 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
B01D 53/02 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography
5.
AUTOMATIC MODEL SCRAPING APPARATUS AND 3D PRINTING DEVICE
The present application relates to an automatic model scraping apparatus and a 3D printing device. The automatic model scraping apparatus comprises a rack (100), a scraping and cutting assembly (300), and a driving assembly (400). The rack (100) is provided with a relief port (111); the rack (100) is used for connecting to a modeling platform (500), so that a model adhered to the modeling platform (500) extends out from the relief port (111); the scraping and cutting assembly (300) is slidably connected to the rack (100); the scraping and cutting assembly (300) comprises a blade (310), and the blade (310) is arranged to form an included angle with respect to a modeling surface of the modeling platform (500); the driving assembly (400) is connected to the rack (100); the driving assembly (400) is used for driving the blade (310) to move in a first direction, so that the blade (310) scrapes and cuts the model on the modeling platform (500) to separate the model from the modeling platform (500), wherein the first direction is parallel to the modeling surface.
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
6.
HEIGHT COMPENSATION METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM
A height compensation method, executed by a computer device, and comprising: when a nozzle is controlled to spray a first-layer printing material along a printing platform and to perform mobile sampling, obtaining a sampling result (step S202); performing data fusion processing on a first measured pressure value and a second measured pressure value to obtain a true pressure value at a current sampling moment (step S204); obtaining a compensation model between a pressure value and a height compensation value, and determining, according to the compensation model, a target height compensation value corresponding to the true pressure value (step S206); and according to the target height compensation value, compensating an initial height value, which is acquired at the current sampling moment, between the nozzle and the printing platform (step S208).
A height data determination method, performed by a computer device, and comprising: for each point to be measured in a printing platform, controlling a probe to move to a current point to be measured and perform stepping sampling to obtain a sampling result (S202); a determination step: processing the sampling result to obtain candidate data of the current measurement point, and determining whether the candidate data satisfies a preset data sampling condition (S204); when the candidate data satisfies the data sampling condition, determining corner pressure data in a plurality of pieces of candidate pressure data in the candidate data (S206); and determining target height data of said current point according to candidate height data corresponding to the corner pressure data (S208).
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
The present application relates to a dual-spray-head device and a 3D printing apparatus. The dual-spray-head device comprises a rack (610), a pressing assembly (200), a spray head assembly (100) and a driving assembly (300), wherein the spray head assembly (100) comprises a first spray head module (110) and a second spray head module (120), the first spray head module (110) being connected to the driving assembly (300); and the pressing assembly (200) is connected to the driving assembly (300). By means of the driving effect of the driving assembly (300), the first spray head module (110) can move up and down relative to the second spray head module (120), and the pressing assembly (200) is driven to move so as to switch a pressing position to one that corresponds to the first spray head module (110) or the second spray head module (120).
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
A switching device and a 3D printing apparatus, the switching device comprising a frame (630), an extrusion assembly (200), a pushing component (100) and a driving component (300). The extrusion assembly (200) is connected to the frame (630), and the extrusion assembly (200) comprises a driving roller (210), and a first pressing roller (220) and a second pressing roller (230) located circumferentially outside the driving roller (210). Conveying channels (240) used for allowing the passage of consumables are formed between the driving roller (210) and the first pressing roller (220) and between the driving roller (210) and the second pressing roller (230). The driving component (300) and the pushing component (100) are both connected to the frame (630). The pushing component (100) comprises a pushing part (120), and the pushing part (120) is configured to, under the drive of the driving component (300), push a target consumable to move relative to the driving roller (210) to a preset position corresponding to the target consumable, so as to limit the movement of the target consumable. The switching device allows a consumable corresponding to one nozzle to be transported while a consumable corresponding to another nozzle is not disturbed, thereby increasing printing efficiency.
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
10.
HEIGHT COMPENSATION METHOD FOR PRINTING PLATFORM, APPARATUS, AND COMPUTER DEVICE
A height compensation method for a printing platform, an apparatus, and a computer device. The method comprises: determining a measurement point to be compensated in a printing platform, and a plurality of neighboring areas located at the neighboring position of said measurement point in the printing platform, each neighboring area comprising at least two adjacent measurement points; projecting the at least two adjacent measurement points in each neighboring area to a preset first projection plane to obtain at least two first projection points, and performing linear fitting processing on the at least two first projection points to obtain a first fitting line corresponding to each neighboring area; according to the first fitting line corresponding to each neighboring area, respectively determining each compensation reference point; and projecting each compensation reference point to a preset second projection plane to obtain each second projection point, and according to each second projection point, performing height compensation on coordinate data of said measurement point. The method can improve the accuracy of height compensation of the printing platform.
B29C 64/386 - Data acquisition or data processing for additive manufacturing
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
11.
MODEL SUPPORT POINT SETTING METHOD AND APPARATUS, ELECTRONIC DEVICE AND READABLE STORAGE MEDIUM
The present application provides a model support point setting method and apparatus, an electronic device and a computer readable storage medium. The method comprises: performing layering on a model according to a preset layer height, and obtaining a contour of each layer of the model; positioning a suspended layer according to the contour of each layer, wherein the model comprises a suspended part, and the suspended layer is the lowermost layer of the suspended part; obtaining a suspended position of the suspended layer on the basis of a lower-layer contour of the suspended layer and a contour of the suspended layer; determining a contour of the suspended position on the basis of the suspended position, and determining a sharp corner area and a non-sharp corner area of the suspended position on the basis of the contour of the suspended position; and setting a support point according to the corresponding preset support point density at the sharp corner area and the non-sharp corner area of the suspended position, respectively. According to the present application, the support point can be provided at the sharp corner area that is easy to collapse in the model, and the situation that model printing fails due to the fact that no support point exists in the sharp corner area is avoided.
The present application relates to a model generation method and apparatus, and a device and a storage medium. The method comprises: acquiring slice text data; acquiring geometric vertex data according to the slice text data; determining a geometric object according to the geometric vertex data and a preset geometric object parameter; and rendering the geometric object by using a custom material, so as to generate a printing model. By means of the present method, geometric vertex coordinates can be extracted from slice text data, a geometric object is determined only according to the geometric vertex coordinates, then the geometric object is rendered so as to generate a model. There is no need to transmit all slice text data to a printer, and there is no need to configure a configuration device, which can accommodate and parse all the slice text data, for the corresponding printer, thereby reducing the cost of the printer. Moreover, since there is a large amount of invalid information in the slice text data, only valid geometric vertex data is needed for subsequent model construction in the present application, thereby reducing the amount of data transmission.
The present invention relates to a 3D printing system, and a rack and a demolding device which are applied to the 3D printing system. The 3D printing system comprises the rack, a release film replacement device, a light source assembly and a base assembly. The release film replacement device can replace a used release film. The light source assembly is arranged above the release film replacement device and is connected to the release film replacement device. The light source assembly is used for emitting light. The base assembly is arranged on the side of the release film replacement device away from the light source assembly. The base assembly is connected to the rack, and comprises a material container and a forming platform. The material container is used for bearing a printing material. The forming platform enables the printing material to be light-cured on the upper surface of the forming platform so as to form a model by means of layer-by-layer molding. Since the release film is arranged above the forming platform, the release film does not need to bear the weight of the printing material and the printing model, and is not prone to deformation. When the forming platform moves away from the release film, the forming platform only applies a small tug force on the release film. When the release film needs to be replaced, the release film can be replaced by using the release film replacement device.
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
14.
RELEASE FILM REPLACING DEVICE AND 3D PRINTING APPARATUS
The present invention relates to a release film replacing device, which comprises a winding assembly and a compression assembly. The winding assembly comprises a first reel and a second reel, wherein the first reel and the second reel are disposed opposite each other and are spaced apart from each other, both the first reel and the second reel are rotatably connected to a frame, the first reel winds up a first end of a release film, and the second reel winds up a second end of the release film. When the second reel is rotated about its own axis in a first direction, the first end of the release film can be unwound and the second end thereof can be wound. Therefore, the release film between the first reel and the second reel is replaced with a new release film. The whole operation process is not only very easy and convenient, but also saves on a lot of time and labor, thereby avoiding the process of dismounting and mounting a screen assembly repeatedly.
B29C 64/379 - Handling of additively manufactured objects, e.g. using robots
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
A light source device and a 3D printing apparatus. The light source device comprises an optical machine assembly (100), a reflecting mirror assembly (200), and a workbench (300). The optical machine assembly (100) and the reflecting mirror assembly (200) are spaced apart from each other in a first direction, and are located below the workbench. The optical machine assembly (100) can be rotated in a second direction, the reflecting mirror assembly (200) can be rotated in a horizontal third direction, and the reflecting mirror assembly (200) is configured to reflect, onto the workbench (300), a light ray emitted from the optical machine assembly (100), wherein the first direction, the second direction and the horizontal third direction are pairwise perpendicular to each other. The optical machine assembly (100) can be rotated in the second direction to adjust an incident angle of an incident light ray, thereby adjusting the angle of an emergent light ray. The reflecting mirror assembly (200) can be rotated in the horizontal third direction to adjust the angle of an emergent light ray, thereby adjusting the position of the contour line of a projection that is projected onto the workbench by the optical machine assembly (100) by means of the reflection of the reflecting mirror assembly (200). Therefore, the projection effect is improved, and the printing accuracy is then increased.
B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
16.
3D PRINTING FILE GENERATION METHOD, APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM
The present application provides a three-dimensional (3D) printing file generation method, a 3D printing apparatus, a computer device, and a storage medium, which can be used for forming seams that are more beautiful or more in line with design requirements, thereby effectively improving the beauty of a product. The 3D printing file generation method comprises the following steps: slicing a 3D model to obtain slices, and acquiring contour data of the slices; for the slices, determining a straight line X=X0 corresponding to the abscissa X0 of the intersection point of a preset seam line on a current slice; according to the straight line X=X0 corresponding to abscissa information of the intersection point and contour data of the current slice, determining coordinate information of a seam point, and filling the coordinate information of the seam point into the contour data of the current slice, and setting the seam point as an initial printing point of the current slice; and generating a 3D printing file according to the contour data of the slices.
The present application relates to a 3D printed file generation method and apparatus, and a terminal and a storage medium. The method comprises: according to first contour coordinates of a first slice of a model to be printed and second contour coordinates of a second slice of same, determining whether there is a gap, in the width direction of a line, between the first slice and the second slice after the first slice and the second slice are printed; when there is a gap, according to the offset, in the width direction of the line, of the first slice relative to the second slice, the height of the line and a unit material length, determining a target material extrusion amount for a printing nozzle when a target slice is printed; and replacing a preset material extrusion amount corresponding to the target slice with the target material extrusion amount, and generating a printed file, wherein the target material extrusion amount is greater than the preset material extrusion amount of the target slice, and the target slice is the first slice or the second slice. Therefore, the line of a slice that is printed according to the target material extrusion amount is wider, such that the gap between two adjacent layers can be closed, thereby improving the printing effect.
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
18.
METHOD, APPARATUS AND DEVICE FOR GENERATING 3D PRINTING FILE, AND STORAGE MEDIUM
Disclosed are a method, apparatus and device for generating a 3D printing file, and a storage medium. The method for generating the 3D printing file comprises: obtaining slice hierarchical data of a 3D model in different inclined slice directions; for each inclined slice direction, according to the slice hierarchical data of the current inclined slice direction, determining a support amount of a support required to be added in the 3D model in the current inclined slice direction; determining a target slice direction corresponding to the minimum support amount; and generating a printing file of the 3D model according to the slice hierarchical data corresponding to the target slice direction. By means of such a method, model printing is performed in the slice direction having the minimum support amount, the problems that the number of consumables is increased, the printing time is prolonged, supports are difficult to be peeled off and the surface precision of the model is affected after peeling off due to the fact that the number of support structures is large are solved, and the effects of improving a model printing speed, reducing printing materials and improving the surface printing precision of the model are achieved.
The present application provides a 3D printing conveying platform, comprising a conveying belt, a driving assembly for driving the conveying belt to move in a first direction, a base, a driven assembly, and a movable assembly. The driving assembly is mounted on the base. The driven assembly is provided opposite to the driving assembly in the first direction, and the conveying belt is transmittingly connected to the driven assembly. The movable assembly comprises a first movable member and a second movable member which are connected to each other, the first movable member is connected to the driven assembly, and the second movable member is movably provided between the first movable member and the base and is connected to the first movable member and the base, so that the driven assembly can swing in a second direction with respect to the base. According to the 3D printing conveying platform provided in the present application, the movable assembly is connected to the driven assembly and the base, so that the conveying belt has a self-adaptive adjusting function, the usability is improved, and the printing precision is guaranteed. The present application also provides a 3D printer.
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B65G 15/64 - Arrangements for supporting or guiding belts, e.g. by fluid jets for automatically maintaining the position of the belts
A light source device and a 3D printer. The light source device comprises a lamp panel (110), lamp beads (120), a lens assembly (200), and a display screen (300). The lens assembly (200) comprises a plurality of lenses (210); the display screen (300) is arranged above and spaced apart from the lamp panel (110); the plurality of lamp beads (120) are arranged at the top of the lamp panel (110); the distance between any adjacent lamp beads (120) is d; any three lamp beads (120) adjacent to each other and having a spacing of d define an equilateral triangle area (150) having a side length of d; a lens (210) is provided above each lamp bead (120); the lenses (210) are used for refracting dispersed light of the lamp beads (120) to form parallel light and projecting same to the display screen (300). In the light source device, a plurality of lamp beads (120) are arranged on the lamp panel (110), and any three lamp beads (120) adjacent to each other and having a spacing of d define an equilateral triangle area (150) having a side length of d. Compared with the existing uniform arrangement of a lamp bead array, in which square areas are formed between the adjacent lamp beads, the overlapping part of emitted light between the adjacent lamp beads is greatly reduced, and the uniformity of the light source is improved.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
The present application relates to the technical field of 3D printers, and specifically disclosed are a Z-axis structure and a 3D printer. The Z-axis structure comprises an electric motor, a lead screw, a nut, a lead screw fixing member and a limiting member, wherein an output shaft of the electric motor is in transmission connection with the lead screw; the nut is screwed to the lead screw; the lead screw fixing member is sleeved on the lead screw with a gap, and the lead screw fixing member is sleeved on the nut with a gap; the limiting member can limit rotation of the lead screw fixing member relative to the nut in a circumferential direction of the nut within a set range; when the electric motor and the lead screw are not concentric, the lead screw drives the entire nut to rotate eccentrically relative to an output shaft center of the electric motor; and by means of the gap between the lead screw and the lead screw fixing member, the gap between an outer peripheral surface of the nut and the lead screw fixing member allows the lead screw and the nut as a whole to shake in a radial direction of the lead screw to a certain extent relative to the lead screw fixing member, so as to prevent the lead screw fixing member from eccentrically moving with the lead screw, thereby ensuring the stability of movement of a printing platform, preventing the printing of laminated striations, reducing printing noise, and ensuring the service life of the Z-axis structure.
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B29C 64/232 - Driving means for motion along the axis orthogonal to the plane of a layer
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
22.
METHOD AND APPARATUS FOR DETERMINING 3D MODEL PRINTING POSITION, A DEVICE, AND A STORAGE MEDIUM
The present application discloses a method and apparatus for determining a 3D model printing position, a device, and a storage medium. The method comprises: acquiring a target 3D model selected by a user, and determining the projection of a target area comprising the target 3D model to a printing plane; determining whether storage data is present; if the storage data is absent, determining a first printing position of the target 3D model on the printing plane according to the projection; and if the storage data is present, determining a second printing position of the target 3D model on the printing plane according to the projection and the storage data, wherein there is no intersection between the second printing position and the storage data, so that the second printing position of the target 3D model and the printing position of a 3D model selected before the target 3D model are not the same position. Therefore, the problem of that the printing accuracy is reduced due to repetitive printing at one position of the printing plane is solved, thereby achieving the effect of ensuring the model printing accuracy.
Disclosed in the present application are a rotating disk device and a curing machine. The rotating disk device comprises a mounting plate, a bearing plate, an active rotating disk and a driving member. The bearing plate is rotatably mounted on one side of the mounting plate and in a detachable manner, and the bearing plate is provided with a first magnetic member. The active rotating disk is arranged on the other side of the mounting plate, and a second magnetic member, which is arranged corresponding to the first magnetic member, is arranged on the active rotating disk. The driving member is connected to the mounting plate and cooperates with the active rotating disk, and the driving member is used for driving the active rotating disk to rotate. The bearing plate of the rotating disk device uses an indirect driving structure to cooperate with the driving member, such that the bearing plate is very convenient to mount and dismount, and the mounting plate can utilize a fully closed structure, which facilitates the cleaning of a table top by a user.
The present application relates to a method and apparatus for generating a 3D printing file, a computer device, and a storage medium. The method comprises: performing layered slicing on a model to be printed and obtaining slice data of each layer; determining each shape in a contour of a first layer according to the slice data of the first layer; selecting target points from among points on each shape, the target points representing locations prone to edge warping during printing; determining radiation ranges of radiation points of corresponding skirts according to each target point; performing radiation according to the radiation ranges corresponding to the radiation points and a preset height, and obtaining skirt data; obtaining merged slice data of each layer according to the skirt data and the slice data of each layer, and obtaining a printing file according to the merged slice data of each layer. During printing, a skirt is only generated around the target points, causing the target points to better adhere to a heated bed; the volume of the skirt is reduced, model forming speed can be increased, consumable printing material waste is reduced, contact of another portion with the skirt is reduced, and the flatness of a surface of the model can be improved.
G06F 30/20 - Design optimisation, verification or simulation
G06T 17/20 - Wire-frame description, e.g. polygonalisation or tessellation
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
Disclosed in the present application are a consumable extrusion mechanism and a 3D printer, which relate to the technical field of 3D printers. The consumable extrusion mechanism comprises a drive gear assembly and an extrusion hob gear assembly. The drive gear assembly comprises a first drive gear and a second drive gear, which are in meshing transmission with each other. The extrusion hob gear assembly comprises a first extrusion hob gear and a second extrusion hob gear. The first drive gear is fixedly connected to the first extrusion hob gear, the second drive gear is fixedly connected to the second extrusion hob gear, a consumable is arranged between the first extrusion hob gear and the second extrusion hob gear, and the first drive gear and the second drive gear are in meshing transmission in order to drive the first extrusion hob gear and the second extrusion hob gear to rotate so as to extrude the consumable. The consumable extrusion mechanism can separately machine the drive gear and the extrusion hob gear, which reduces the machining difficulty, facilitates the miniaturization of products, and reduces the production cost.
B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
The present application relates to a plastic pellet extrusion apparatus and a 3D printing device. The plastic pellet extrusion apparatus comprises an extrusion mechanism (120), a diverting block (130), and a nozzle (140). The extrusion mechanism (120) has an extrusion port, and the nozzle (140) is connected to the extrusion port. The diverting block (130) is mounted between the extrusion mechanism (120) and a feeding port of the nozzle (140). The diverting block (130) is provided with a plurality of flow holes that are arranged at intervals and penetrate through along the thickness direction of the diverting block (130); both ends of each flow hole communicate with the extrusion port and the feeding port of the nozzle (140). A material is diverted by means of the plurality of flow holes at intervals on the diverting block, so that the material enters the nozzle by means of the plurality of flow holes, and pressure is alleviated by means of the flow holes.
B29C 48/285 - Feeding the extrusion material to the extruder
B29C 48/80 - Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
B29C 48/25 - Component parts, details or accessories; Auxiliary operations
B29C 48/395 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
A 3D printer extrusion structure, comprising: a housing (110); a motor (120) provided on the housing (110); an active extrusion hobbing gear (130) provided in the housing (110) and connected to the motor (120); an adjusting support (140) rotatably connected inside the housing (110); a driven extrusion hobbing gear (150) provided at one end of the adjusting support (140) and rotatably connected to the adjusting support (140); and an elastic member (160), the elastic member (160) being connected to the other end of the adjusting support (140) to enable the end of the adjusting support (140) provided with the driven extrusion hobbing gear (150) to approach the active extrusion hobbing gear (130), so that the driven extrusion hobbing gear (150) works in conjunction with the active extrusion hobbing gear (130) to complete material extrusion, wherein the end of the adjusting support (140) provided with the driven extrusion hobbing gear (150) extends to the outside of the housing (110).
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
A multi-stage speed reduction extruder and a 3D printing device, related to the technical field of 3D printing. The multi-stage speed reduction extruder comprises a base, a driving motor, a speed reduction mechanism, and an extrusion mechanism. The speed reduction mechanism comprises a duplex gear and extrusion gears. The duplex gear is linkedly connected to a motor gear of the driving motor for performing first speed reduction. The extrusion gears comprise an active extrusion gear and a passive extrusion gear linkedly connected to the active extrusion gear. The active extrusion gear is linkedly connected to the duplex gear to perform a second speed reduction. The extrusion mechanism comprises extrusion rollers provided coaxially with the extrusion gears. A material feeding channel used for conveying a printing material is formed between the extrusion rollers. When the driving motor is working, the driving motor drives the reduction mechanism and the extrusion mechanism to rotate for conveying the printing material.
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
F16H 1/22 - Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with arrangements for dividing torque between two or more intermediate shafts
F16H 37/12 - Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these three types
F16H 57/023 - Mounting or installation of gears or shafts in gearboxes, e.g. methods or means for assembly
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
29.
AUTOMATIC LEVELING DEVICE FOR 3D PRINTER, AND 3D PRINTER
Provided are an automatic leveling device for a 3D printer, and a 3D printer. The automatic leveling device comprises a photoelectric switch (2), an electromagnetic assembly (3) and a probe assembly (4). The photoelectric switch (2) is provided with a light-sensing recess (21). The electromagnetic assembly (3) is provided with a sliding hole. The probe assembly (4) is fit in the sliding hole in a slidable manner. One end of the probe assembly (4) is fit in the light-sensing recess (21). The electromagnetic assembly (3) can drive the probe assembly (4) to move, so that the end of the probe assembly (4) that is fit in the light-sensing recess (21) is separated from the light-sensing recess (21). The automatic leveling device is mounted to a printhead assembly of the 3D printer.
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
The present application provides a 3D printer and a belt tensioning apparatus thereof. The belt tensioning apparatus comprises a first synchronous wheel, a second synchronous wheel, a synchronous belt, a first adjustment block, a second adjustment block, and an adjustment member. The first synchronous wheel and the second synchronous wheel are connected by means of the synchronous belt, and the synchronous belt is an open-type toothed synchronous belt. The first adjustment block is connected to one open end of the synchronous belt, and is provided with a first adjustment hole. The second adjustment block is connected to the other open end of the synchronous belt, and is provided with a second adjustment hole. The adjustment member is connected to the first adjustment hole and the second adjustment hole for driving the first adjustment block and the second adjustment block to move toward each other or move back to back. According to the present application, the tensioning degree of the synchronous belt can be conveniently adjusted.
F16H 7/08 - Means for varying tension of belts, ropes, or chains
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
A 3D printing extrusion device and a 3D printer. The 3D printing extrusion device comprises a feeding member (1), a driving gear (2), a first driven gear (31) and a second driven gear (41); one end of the feeding member (1) is provided with a discharge channel (11), and the other end thereof is provided with a first feeding channel (12) and a second feeding channel (13) both connected to the discharge channel (11); the driving gear (2) is provided at the ends of the first feeding channel (12) and the second feeding channel (13) away from the discharge channel (11); and the first driven gear (31) can be selectively engaged with the driving gear (2) so as to feed materials to the first feeding channel (12), and the second driven gear (41) can be selectively engaged with the driving gear (2) so as to feed materials to the second feeding channel (13). The first feeding channel (12) and the second feeding channel (13) are provided on the feeding member (1) to sequentially feed the materials to the discharge channel (11), and the first driven gear (31) and the second driven gear (41) are selectively engaged with the driving gear (2) to achieve automatic material exchange, thereby increasing the printing efficiency.
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
The present invention relates to a 3D printer printhead. The 3D printer printhead comprises: an extrusion box, having a mounting cavity, a chip removal port communicated with the mounting cavity, and an air inlet communicated with the mounting cavity; an extrusion mechanism, provided in the mounting cavity, the extrusion box further having a feed end and a discharge end communicated with the feed end, the extrusion mechanism being arranged between the feed end and the discharge end; and a first heat dissipation mechanism, provided at the side of the extrusion box having the air inlet, an airflow generated by the first heat dissipation mechanism being capable of flowing into the mounting cavity through the air inlet and flowing out of the mounting cavity through the chip removal port. According to the 3D printer printhead provided by the present invention, while a printing operation is satisfied, heat dissipation requirements are satisfied by means of the airflow generated by the first heat dissipation mechanism, thereby improving a heat dissipation effect; moreover, the airflow generated by the first heat dissipation mechanism can take away printing waste chips, thereby achieving a chip removal function and reducing the risk of blockage of the print head.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
33.
AUTOMATIC ASSEMBLY EQUIPMENT FOR PCB AND HEAT SINKS OF 3D PRINTER
An automatic assembly equipment for a PCB and heat sinks of a 3D printer, comprising a conveying device (1), carriers (2), a feeding manipulator (3), a first manipulator (4), a second manipulator (5) and a discharging manipulator (6); each carrier is used for positioning the PCB (100); the feeding manipulator, the first manipulator, the second manipulator and the discharging manipulator are sequentially provided in a conveying direction of the conveying device; the conveying device is provided with a plurality of clamps (13) for fixing the carriers, and each clamp can sequentially pass through the feeding manipulator, the first manipulator, the second manipulator and the discharging manipulator; the feeding manipulator can clamp the carrier carrying the PCB and place the carrier carrying the PCB on each clamp; the first manipulator can assemble a first heat sink (200) to the PCB; the second manipulator can assemble a second heat sink (300) to the PCB; and the discharging manipulator moves the carrier and the PCB out of each clamp. The automatic assembly equipment can achieve automatic feeding and discharging of the PCB and automatic assembly of the heat sinks, effectively reducing labor costs, increasing assembly efficiency, and ensuring assembly stability.
B05C 5/02 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work from an outlet device in contact, or almost in contact, with the work
B05C 13/02 - Means for manipulating or holding work, e.g. for separate articles for particular articles
B25J 11/00 - Manipulators not otherwise provided for
F16B 11/00 - Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
Provided are a 3D printer stand column assembly and a 3D printer. The 3D printer stand column assembly comprises a stand column (1), a lead screw (2) rotatably and vertically provided on the stand column (1), a lead screw nut (3) provided on the lead screw (2), and a driving device (4) for driving the lead screw (2), and further comprises: a limiting switch (5) provided on the stand column (1), and a cantilever (6) fixed to the lead screw nut (3) and provided with a blocking piece (61) which works in conjunction with the limiting switch (5) to control the upward stroke and/or the downward stroke of the cantilever (6). The stand column (1) and the cantilever (6) are respectively provided with the limiting switch (5) and the blocking piece (61) which work in conjunction with each other to achieve positional limitation, such that the upward and/or downward stroke of the cantilever (6) can be effectively controlled, and the problem that the cantilever (6) collides with other components is avoided.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
Provided is a photocuring 3D printing device, comprising a base (1), a support arm (2), a curing processing table (5), a light source assembly (6), a forming platform (4), and a lifting assembly (3). When photocuring forming is performed, the lifting assembly (3) drives the forming platform (4) to descend to the curing processing table (5), light is emitted by the light source assembly (6) and sequentially passes through the curing processing table (5) and a display screen (8) provided on the curing processing table (5), and an image displayed on the display screen (8) is projected onto a material box (7). The use of an integral light source as a light source of the light source assembly can solve the light intensity difference between different lamp beads, and the relative light intensity of the whole exposure area is uniform without a mutation boundary, so that the forming precision is high.
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29C 64/282 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED] of the same type, e.g. using different energy levels
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
The present application provides a positioning device for a 3D printer, comprising a support, a first positioning shaft, a second positioning shaft, an X shaft, and a Y shaft. The support has a first plane. The first positioning shaft is provided on the support. The second positioning shaft is provided on the support, and orthographic projections of the first positioning shaft and the second positioning shaft on the first plane are perpendicular to each other. The X shaft is connected to the first positioning shaft, and translates along the first positioning shaft. The Y shaft is connected to the second positioning shaft, and translates along the second positioning shaft; the Y shaft is spaced apart from the X shaft; orthographic projections of the Y shaft and the X shaft on the first plane intersect perpendicularly. According to the positioning device for the 3D printer, the first positioning shaft and the second positioning shaft of which projections are perpendicular to each other are provided on the support, so that the projections of the X shaft and the Y shaft intersect perpendicularly, thereby ensuring horizontal consistency of the planes where the X shaft and the Y shaft are located respectively, and facilitating improvement of printing accuracy. The present application further provides the 3D printer provided with the positioning device.
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
B29C 64/236 - Driving means for motion in a direction within the plane of a layer
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
Provided in the present utility model is a light source device for photo-curing 3D printing, the device comprising a light source module, a screen assembly, an adjusting assembly and a reflector, wherein the light source module is used for providing illumination; the illumination provided by the light source module can be projected onto the screen assembly; the adjusting assembly is arranged at an emergent end of the light source module, and an angle of the adjusting assembly relative to the light source module can be adjusted; and the reflector is connected to the adjusting assembly and can reflect the illumination provided by the light source module into the screen assembly. In the light source device for photo-curing 3D printing, the reflector is arranged on the adjusting assembly, the adjusting assembly is arranged at the emergent end of the light source module, the reflector can reflect the illumination provided by the light source module into the screen assembly, and the angle of the adjusting assembly relative to the light source module can be adjusted, such that the assembly error of the light source module can be eliminated, and the reflector can reflect the illumination provided by the light source module into the screen assembly in a concentrated manner.
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B29C 64/135 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29C 67/00 - Shaping techniques not covered by groups , or
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
The present invention relates to the technical field of printers. Specifically disclosed is a 3D printer, comprising a base, a bracket, a guide rail, two back plates, two first driving mechanisms, two nozzles, a second driving mechanism, a printing platform, and a third driving mechanism. The bracket is disposed on the base; the guide rail extends in the X direction, and is slidably arranged on the bracket in the Z direction; the two first driving mechanisms independently drive the two back plates to move on the guide rail along the X direction, so that the actions of the two nozzles along the X direction can be independently controlled, the functions such as single-nozzle printing, double-nozzle printing, copying, and mirror-image printing can be achieved, and the printing efficiency is high; the second driving mechanism drives the guide rail to move along the Z direction, and the third driving mechanism drives the printing platform to move along the Y direction, so as to ensure the space printing function of the two nozzles; the two back plates are both provided with rollers, and the rollers are arranged on the guide rail in a rolling manner, so that the frictional force of the two back plates during movement can be effectively reduced, stable operation of the two nozzles is then ensured, space occupation can be saved, and the structure is more compact.
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
Provided in the embodiments of the present invention is a photocuring 3D printer, comprising: a Z-axis mechanism, a curing processing platform, an LCD display screen, a material tank, a shaping platform, and a light source mechanism; the curing processing platform is connected to the Z-axis mechanism, the LCD display screen being arranged on the curing processing platform, the material tank being disposed at the top end of the LCD display screen, and the shaping platform being connected to the Z-axis mechanism and being configured to move up and down along the Z-axis mechanism above the curing processing platform; the light source mechanism is disposed below the curing processing platform, and the light source mechanism comprises an integral light source assembly and a reflective mirror; after being reflected by the reflective mirror, the light rays emitted by the integral light source assembly pass in turn through the shaping platform and the LCD display screen and project the image displayed on the LCD display screen onto the material tank; by means of using the integral light source as the light source of the light source mechanism, the difference in light intensity between different lamp beads can be resolved well, the relative light intensity of the entire exposure area is uniform without abrupt boundaries, and the shaping precision is high, the problems of the high cost and low quality of photocuring thus being solved.
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B29C 64/277 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED]
40.
POWER-ON SELF-TEST PROTECTION CIRCUIT AND 3D PRINTER
A power-on self-test protection circuit, comprising a controlled switch (10), a switch power supply (20), a delay module (30) and a main control board (40), wherein the controlled switch is conducted when being pressed, so that an external power supply (00) supplies power to the switch power supply instantaneously, when being connected to the external power supply, the switch power supply generates an operation voltage, and the delay module receives the operation voltage to generate a delay signal during the instantaneous power supply period; the controlled switch controls delayed conduction thereof according to the delay signal, the external power supply supplies power to the switch power supply with a delay during the delayed conduction period, and the main control board receives the operation voltage to start a self-test function during the delayed power supply period, and outputs a power-on/power-off signal; and the controlled switch controls its own continuous conduction state according to the power-on/power-off signal, so as to control whether a printer device starts power supply normally. Further disclosed is a 3D printer using the described circuit. The power-on self-test protection circuit enables the power-on to be successful only after the self-test is passed, ensuring the safety of the device.
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
41.
AUTOMATIC HOLDING APPARATUS FOR POWERING OFF OF PRINTING PLATFORM AND 3D PRINTING DEVICE
An automatic holding apparatus (30) for the powering off of a printing platform, which is applied in a 3D printing device (100). The 3D printing device comprises a printing platform (10) and a stepper motor (20), the stepper motor being used to control the movement of the printing platform. The apparatus comprises a controller (31) and a motor control board (32); a switch device (33) is provided on the motor control board; the switch device is connected to a phase wiring port of the stepper motor; the controller is electrically connected to the motor control board; the controller is used to control the on-off of the switch device on the motor control board, so as to control the phase transition of the stepper motor. Also provided is a 3D printing device. In the automatic holding apparatus for the powering off of a printing platform, the printing platform may be automatically held at the current position after powering off, and the operation is flexible, which increases the printing effect after power-off printing and ensures the smooth running of the printing platform.
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
42.
3D PRINTER SCREEN FIXING ASSEMBLY AND PHOTOCURING 3D PRINTER
A 3D printer screen fixing assembly, for fixing a display screen (700). The 3D printer screen fixing assembly comprises a glass lining plate (100) and a fixing plate (200). The fixing plate (200) is provided on the side of the glass lining plate (100) facing the display screen (700); an adsorption layer (210) is provided on the side of the fixing plate (200) facing the glass lining plate (100), and the glass lining plate (100) is configured to be adsorbed to the adsorption layer (210); a bonding layer (220) is provided on the side of the fixing plate (200) away from the glass lining plate (100), and the bonding layer (220) is used for bonding the display screen (700). In actual use, when the display screen (700) needs to be replaced, a worker only needs to manually separate the adsorption layer (210) from the glass lining plate (100), the display screen (700) can be separated from the glass lining plate (100) and replaced, and the operation is convenient and easy.
B29C 64/129 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
A Z-axis device for a 3D printer. The Z-axis device comprises a printing platform (1) and a Z-axis driving mechanism used for driving the printing platform to move vertically. The Z-axis driving mechanism comprises a Z-axis support (2), a lead screw (3) spaced apart from the Z-axis support and vertically arranged, a mounting frame (5) in threaded transmission connection with the lead screw, and a driving device (14) in transmission connection with the lead screw. The printing platform is fixed relative to the mounting frame in a Z-axis direction; a first guide portion is arranged on the Z-axis support; a second guide portion is arranged on the mounting frame; and the first guide portion matches the second guide portion so as to limit the mounting frame to moving relative to the Z-axis support in the Z-axis direction. A 3D printer using the device. A rigid connection is formed by means of the guide portions between the mounting frame and the Z-axis support, and it is guaranteed that the problem of the mounting frame swinging, under the action of a radial force of the lead screw, during a vertical movement process is prevented, such that the precision of printing is improved.
B29C 64/232 - Driving means for motion along the axis orthogonal to the plane of a layer
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
A feed detection apparatus (100) of a 3D printer, comprising a gear (20), a measurement device (30), a support (40), and a compression assembly (50). The gear (20) is provided on the support (40) to abut against a consumable (70), and rotates along with a movement of the consumable (70). The measurement device (30) is provided on the support (40) to measure a rotating speed of the gear (20), and determines a feed condition of the consumable (70) according to a measurement result. The compression assembly (50) is located at the side of the support (40) back away from the consumable (70); the compression assembly (50) comprises a connection member (51) and an abutment member (52); the connection member (51) is provided between the support (40) and the abutment member (52); the abutment member (52) is used for regulating a pressure of the connection member (51) applied on the support (40) so as to enable the gear (20) to abut against the consumable (70). In the feed detection apparatus (100), by means of a simple combination of the connection member (51) and the abutment member (52), the gear (20) is enabled to abut against the consumable (70), and the consumable (70) drives the gear (20) to move; the rotating speed of the gear (20) is measured by the measurement device (30), such that a feed condition of the consumable (70) is determined. Also provided is a 3D printer (200) having the feed detection apparatus (100).
A synchronous belt tensioning structure. The synchronous belt tensioning structure is used for tensioning a synchronous belt (23). Two ends of the synchronous belt (23) are respectively looped around a driving wheel (22) and a driven wheel (24). The synchronous belt tensioning structure comprises a fixed frame (1), a movable frame (3) and a driving assembly (4). The driven wheel (24) is rotatably mounted on the movable frame (3). The movable frame (3) is configured to be slidable relative to the fixed frame (1). The driving assembly (4) is in transmission connection with the movable frame (3), and drives the movable frame (3) to move back and forth relative to the fixed frame (1), such that the driven wheel (24) moves away from or close to the driving wheel (22). Also provided is a 3D printer comprising the synchronous belt tensioning structure. When a synchronous belt is tensioned by means of the synchronous belt tensioning structure, the adjustable range of the synchronous belt is large. Moreover, the synchronous belt tensioning structure comprises a few parts, and is simple in structure; therefore, the cost is low.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
46.
COOLING MECHANISM OF NOZZLE KIT AND NOZZLE KIT FOR 3D PRINTER
A cooling mechanism of a nozzle kit and a nozzle kit for a 3D printer. The nozzle kit is provided with an extrusion wheel assembly, a hose and a heating nozzle assembly arranged in sequence and for use in conveying consumables, such that the consumables are transported forward by means of the extrusion wheel assembly and outputted from the heating nozzle assembly by passing through the hose. The cooling mechanism comprises a first cooling fan and a second cooling fan which are provided on the nozzle kit and which respectively face towards the extrusion wheel assembly and the hose.
Provided is a 3D printer, comprising: a forming platform located in an XY plane, the forming platform being movable in a Y-axis direction within the XY plane; an obliquely moving module disposed above the forming platform and located within a preset XZ1 plane, wherein the preset XZ1 plane is obliquely disposed at a preset angle θ relative to an XZ plane, and the preset angle θ > 0; and a nozzle device movably installed at the obliquely moving module and operating on the forming platform. The invention allows the position of a nozzle of a 3D printer to be flexibly adjusted, thereby greatly expanding the range of applications of the 3D printer, and improving the printing precision of the 3D printer.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
48.
METHOD AND APPARATUS FOR AUTOMATICALLY IMPROVING PRINTING EFFECT, DEVICE, AND STORAGE MEDIUM
Disclosed in the present invention are a method and apparatus for automatically improving printing effect, a device, and a storage medium. The method comprises: establishing a space coordinate system related to a three-dimensional (3D) printer; receiving an import request of a 3D model, and parsing a triangle patch comprised in the 3D model; acquiring all angular points of the 3D model according to the triangle patch, subtracting a minimum angular point from a maximum angular point to obtain a bounding box of the 3D model and a central point of the 3D model, and creating, according to the central point, an axis perpendicular to the bounding box; receiving a platform inclination angle definition request of the 3D printer, and using the axis and a platform inclination angle to calculate a quaternion related to the rotation of the 3D model; and obtaining a rotation matrix according to the quaternion, multiplying a space matrix of the bounding box of the 3D model by the rotation matrix to obtain the space matrix of the bounding box after rotation, performing a slicing operation by using 3D printing software, and enabling a printing path to be perpendicular to the bounding box. The model is imported to automatically keep the inclination angle consistent with that of a platform, thereby improving the printing effect.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
49.
DOUBLE-Z-AXIS DRIVING STRUCTURE AND SINGLE-NOZZLE 3D PRINTER HAVING SAME
Disclosed in the present utility model are a double-Z-axis driving structure and a single-nozzle 3D printer having same. The double-Z-axis driving structure comprises a platform, a bracket provided on the platform, and a cross beam slidably provided on the bracket and located above the platform; a first motor and a second motor arranged at intervals are provided on one side of the lower end of the bracket; the upper end of the first motor is provided with a first lead screw which is transmittingly connected to the first motor and is vertically provided; the upper end of the second motor is provided with a first lead screw which is transmittingly connected to the second motor and is vertically provided; the two ends of the cross beam are respectively fixed on the first lead screw and the second lead screw by means of lead screw nuts; the upper ends of the first lead screw and the second lead screw are respectively provided with a first synchronizing wheel and a second synchronizing wheel; the first synchronizing wheel and the second synchronizing wheel are connected by a synchronous belt. In the present utility model, by means of a double-motor double-lead screw driving mode, the balance and stability of the cross beam in the moving process are improved; moreover, the synchronous belt is added between the two lead screws to ensure the synchronization of the two lead screws, thereby causing the cross beam and the platform to be always kept parallel.
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
A 3D printer, comprising a triangular-prism-shaped frame (100), a spray head moving assembly (200) mounted on the triangular-prism-shaped frame (100), a spray head assembly (300) mounted on the spray head moving assembly (200), and a feeding assembly (400), a shortage of material detection assembly, a display assembly (500), and a power supply mainboard assembly which are mounted on the triangular-prism-shaped frame (100). The power supply mainboard assembly is electrically connected to the spray head moving assembly (200), the spray head assembly (300), the feeding assembly (400), the shortage of material detection assembly, and the display assembly (500). The 3D printer is provided with the triangular-prism-shaped frame (100), a transmission assembly (700) is provided at the bottom of the triangular-prism-shaped frame (100), and infinite-length printing is achieved by means of transmission of a transmission belt (703) of the transmission assembly (700).
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
51.
BELT TRANSMISSION MECHANISM FOR WIRELESS 3D-PRINTER
A belt transmission mechanism for a wireless 3D-printer, comprising a mechanism base frame (702), a driving wheel assembly (A) mounted on the mechanism base frame (702), a transmission belt (703) mounted on the driving wheel assembly (A), a driven wheel assembly (B) connected to the driving wheel assembly (A) by means of the transmission belt (703), and a heated bed assembly (C) mounted on the transmission belt (703). The driving wheel assembly (A) comprises a driving motor (704), a transmission pulley (705) connected to an output end of the driving motor (704), a timing belt (706) mounted on the transmission pulley (705), and a rubberized roller (707) connected to the transmission belt (703). The belt transmission mechanism employs the heated bed assembly (C) and belt transmission to enable a nozzle assembly (300) of the printer to stably perform processing and printing on a glass plate (701) on the transmission belt (703), providing good processing conditions for 3D-printing and improving printing efficiency.
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
52.
PLANE LAYOUT METHOD AND SYSTEM FOR MODEL, COMPUTER DEVICE, AND STORAGE MEDIUM
A plane layout method and system for a model, a computer device, and a storage medium. The method comprises: if a laid-out model exists in an interface, obtaining a perpendicular line of each side of a laid-out projection model corresponding to the laid-out model in the interface, the perpendicular line passing through the origin of a two-dimensional coordinate axis, and obtaining the existing projection line segment of the laid-out projection model on the perpendicular line; obtaining a projection model to be laid out which needs to be laid out on a 3D printing platform, selecting a pre-insertion point, and obtaining a newly added projection line segment on the perpendicular line of each side of the laid-out projection model when the projection model to be laid out is located at the pre-insertion point; determining whether the newly added projection line segment conflicts with any one of the existing projection line segments, if the newly added projection line segment does not conflict with any one of the existing projection line segments, inserting a model to be laid out at the pre-insertion point in the interface.
A 3D printer levelling assembly and a 3D printer, comprising a ball shell, a ball sleeve, and an adjustment block, the ball shell being provided with an accommodating groove, the ball sleeve being capable of reciprocating motion in the accommodating groove, the ball sleeve being provided with a jacking part, a ball accommodating cavity being disposed in the jacking part, a ball being disposed in the ball accommodating cavity, the side face of the jacking part being provided with a ball window, the ball being capable of extending out of the jacking part through the ball window, the accommodating groove being provided with a pressing part corresponding to the jacking part, the adjustment block and the ball shell being in threaded connection, a plug screw sequentially passing through the ball shell, the ball sleeve, and the adjustment block, and the adjustment block being used for adjusting the distance between the jacking part and the pressing part such that the ball clamps or loosens the plug screw. The beneficial effects are: providing a 3D printer levelling assembly with a rational structure and high reliability, said assembly facilitating the 3D printer to perform levelling on a printing platform to ensure the subsequent printing quality.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
54.
AUTOMATIC RELOADING DEVICE FOR 3D PRINTER, AND AUTOMATIC RELOADING METHOD
An automatic reloading device for a 3D printer, and an automatic reloading method. Said device comprises an extrusion mechanism and a switching mechanism (6); the extrusion mechanism comprises a driving wheel (7), a first driven wheel set (41), a second driven wheel set (51), a first rotating clamp (4), a second rotating clamp (5), and a tension spring (43); one end of each of the first rotating clamp (4) and the second rotating clamp (5) is hinged to a cover body (1), and the other end of each of the first rotating clamp (4) and the second rotating clamp (5) is connected to the tension spring (43); the switching mechanism (6) comprises a switching rod (61) rotatably connected to an extrusion base (12), and a switching handle (62) fixedly connected to the switching rod (61); the end of the first rotating clamp (4) close to the tension spring (43) is fixedly connected to a first limiting column (42), and the end of the second rotating clamp (5) close to the tension spring (43) is fixedly connected to a second limiting column (52); and when the switching handle (62) is in an initial state, two ends of the switching rod (61) respectively abut against the first limiting column (42) and the second limiting column (52), such that the first driven wheel set (41) and the second driven wheel set (52) are both separated from the driving wheel (7). The present device has a high automation degree, increases the working efficiency, and reduces labor costs.
B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
Disclosed is a copper sleeve press-fitting device (1), comprising a double-stroke air cylinder, a downward pressing air cylinder, a material distribution mechanism and a press-fitting platform (40). The double-stroke air cylinder comprises a movable part (11); the movable part is connected to a material distribution side pressing push rod (12); the material distribution mechanism and the press-fitting platform are sequentially arranged in the moving direction of the movable part; a press-fitting stage (41) is arranged at the distal end of the press-fitting platform; the downward pressing air cylinder is arranged above the press-fitting stage; the downward pressing air cylinder comprises a downward pressing air cylinder movable part (21); the downward pressing air cylinder movable part is connected to a downward pressing sharp knife (22); the material distribution mechanism is provided with a pushing groove (321) and a feeding groove (322); the material distribution side pressing push rod can reciprocate along the pushing groove; one end of the feeding groove is connected to a discharging port of a feeding mechanism (2); and the other end of the feeding groove is connected to the pushing groove. The copper sleeve press-fitting device enables the material distribution process and the press-fitting process of a copper sleeve to be completed using one device, such that the material distribution process and the press-fitting process of the copper sleeve can be completed in an automatic mechanical operation manner, and labor costs are greatly reduced.
patents
