The invention relates to a 3D printing method, wherein at least one component (18) is built up layer by layer on a build platform (16) by 3D printing. The layer-by-layer building process is carried out such that on the build platform (16) a frame structure (20) is simultaneously built up by 3D printing, the frame structure extending in the height direction, being associated with the particular build platform (16) and surrounding the at least one component (18).
B29C 64/30 - Opérations ou équipements auxiliaires
B29C 64/165 - Procédés de fabrication additive utilisant une combinaison de matériaux solides et liquides, p.ex. une poudre avec liaison sélective par liant liquide, catalyseur, inhibiteur ou absorbeur d’énergie
B29C 64/379 - Manutention des objets en 3D obtenus, p.ex. à l’aide de robots
B22F 10/14 - Formation d’un corps vert par projection de liant sur un lit de poudre
B33Y 40/00 - Opérations ou équipements auxiliaires, p.ex. pour la manipulation de matériau
2.
PRINTHEAD CLEANING DEVICE FOR A 3D PRINTER, 3D PRINTER, USE OF THE PRINTHEAD CLEANING DEVICE FOR A 3D PRINTER, METHOD FOR CLEANING A PRINTHEAD OF A 3D PRINTER, METHOD FOR CLEANING A WIPER ELEMENT OF A PRINTHEAD CLEANING DEVICE OF A 3D PRINTER, AND METHOD FOR CONSERVING A PRINTHEAD OF A 3D PRINTER
The invention relates to a printhead cleaning device (10) for a 3D printer which is designed to construct a component layer by layer using binder jettings, wherein the printhead cleaning device (10) has a support (12) on which a wiper element (14) is arranged and which has a plurality of nozzles (16) that are designed to discharge a liquid cleaning agent.
B29C 64/165 - Procédés de fabrication additive utilisant une combinaison de matériaux solides et liquides, p.ex. une poudre avec liaison sélective par liant liquide, catalyseur, inhibiteur ou absorbeur d’énergie
The invention relates to a coating unit (10) for a 3D printer, having: an elongate container (30), which has two opposing long side walls (32, 34), between which an inner cavity (36) is formed for receiving particulate material, which inner cavity opens into an elongate discharge gap (38) for discharging the particulate material from the container (30) onto a construction field; and a first adjustment device (50), which is designed to move the two long side walls (32, 34) relative to one another at least in a respective lower portion (32a, 34a) adjacent to the discharge gap (38), in order to variably adjust the width of the discharge gap (38).
The invention relates to a method for producing at least one component on a construction platform in a 3D printing method, said platform being provided with a heating device. The method has the steps of: applying a layer of loose particle material onto the construction platform, heating the applied layer of loose particle material by means of the heating device of the construction platform, discharging a liquid treatment agent onto a sub-region of the heated layer of loose particle material, and repeating the aforementioned steps in order to produce the at least one component in layers. The heating function of the heating device of the construction platform is carried out such that the temperature of the construction platform while producing the component increases in the direction of a specified construction platform high temperature in order to adjust the surface temperature of the last applied layer each time.
B29C 64/165 - Procédés de fabrication additive utilisant une combinaison de matériaux solides et liquides, p.ex. une poudre avec liaison sélective par liant liquide, catalyseur, inhibiteur ou absorbeur d’énergie
B29C 64/194 - Procédés de fabrication additive impliquant des opérations supplémentaires effectuées sur les couches ajoutées, p.ex. lissage, meulage ou contrôle d’épaisseur pendant l’empilage des couches
B29C 64/295 - Fabrication additive, c. à d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p.ex. par impression en 3D, stéréolithographie ou frittage laser sélectif - Détails ou accessoires à cet effet Éléments de chauffage
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B33Y 40/00 - Opérations ou équipements auxiliaires, p.ex. pour la manipulation de matériau
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittage; Appareils spécialement adaptés à cet effet
B22F 5/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser
5.
PRINTHEAD CLEANING DEVICE FOR A 3D PRINTER, 3D PRINTER COMPRISING A PRINTHEAD CLEANING DEVICE, USE OF THE PRINTHEAD CLEANING DEVICE AND METHOD FOR CLEANING A PRINTHEAD OF A 3D PRINTER
The invention relates to a printhead cleaning device for a 3D printer, which is designed for the layer-by-layer construction of a component by means of binder jetting, wherein the printhead cleaning device comprises a cleaning agent supply device which has an elongated discharge opening and which is designed to discharge fluid cleaning agent through the elongated discharge opening, and a suction device which has an elongated suction gap and which is designed to suction fluid through the elongated suction gap, wherein a longitudinal axis of the elongated discharge opening and a longitudinal axis of the elongated suction gap are arranged at an angle to one another.
B29C 64/30 - Opérations ou équipements auxiliaires
B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
B41J 2/165 - Prévention du colmatage des ajutages, p.ex. nettoyage, obturation par un capuchon ou humidification des ajutages
B29C 64/165 - Procédés de fabrication additive utilisant une combinaison de matériaux solides et liquides, p.ex. une poudre avec liaison sélective par liant liquide, catalyseur, inhibiteur ou absorbeur d’énergie
B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittage; Appareils spécialement adaptés à cet effet
The invention relates to a building enclosure system 10 for a 3D printer 12, comprising: a building enclosure 30 having a sidewall structure 32 and a building platform 34 accommodated within the sidewall structure 32, wherein the sidewall structure 32 delimits a building enclosure interior 36, which is open at the top, for constructing a component in a 3D printing process, which building enclosure interior is delimited at the bottom by the building platform 34; and a support structure 50, which comprises its own drive 52 integrated in the support structure 50 and can be releasably attached to the building enclosure 30 such that the building enclosure 30 can be repeatedly removed from the support structure 50 following the construction of the component in the building enclosure interior 36 and then re-attached to the support structure 50.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/255 - Enceintes pour le matériau de construction, p.ex. récipients pour poudre
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
122) over the building space (B1), in order to output a flowable treating agent in a controlled manner onto a subregion of a previously applied layer of building material, thereby contributing to a selective solidification of the same, and a control device (C), which is designed to control the coater (3) and the printing device (5) in such a way that they move over the building space (B1) at overlapping times and/or that in an overlapping manner they supply the building space (B1) with building material or output flowable treating agent in a controlled manner onto a subregion of a previously applied layer of building material.
B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittage; Appareils spécialement adaptés à cet effet
B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
B28B 1/00 - Fabrication d'objets façonnés à partir du matériau
H05K 3/12 - Appareils ou procédés pour la fabrication de circuits imprimés dans lesquels le matériau conducteur est appliqué au support isolant de manière à former le parcours conducteur recherché utilisant la technique de l'impression pour appliquer le matériau conducteur
The invention relates to a coating arrangement (1) for a 3D printer, comprising a coater (3) with a container (5) defining an internal hollow space for receiving particulate building material, said internal hollow space leading into a container opening (7) for discharging the particulate building material from the container (5), and a discharge region (9) defining a coating discharge opening (11) for delivering the particulate building material from the coater (3) to a construction field. The container (5) is movable relative to the coating discharge opening (11) so that a discharge of particulate building material from the internal hollow space through the container opening (7) and the coating discharge opening (11) to the construction field can be varied by a movement of the container (5) relative to the coating discharge opening.
B05C 11/02 - Appareils pour étaler ou répartir des liquides ou d'autres matériaux fluides déjà appliqués sur une surface; Réglage de l'épaisseur du revêtement
B05C 11/10 - Stockage, débit ou réglage du liquide ou d'un autre matériau fluide; Récupération de l'excès de liquide ou d'un autre matériau fluide
B29C 31/02 - Distribution à partir de réservoirs, p.ex. de trémies
B28B 13/02 - Alimentation en matériau non façonné des moules ou des appareillages destinés à la fabrication d'objets façonnés
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
B29K 105/00 - Présentation, forme ou état de la matière moulée
9.
3D PRINTER COMPRISING A RECOATER AND A RECOATER CLEANING DEVICE, AND METHOD FOR CLEANING A RECOATER USING A CLEANING DEVICE
Disclosed is a 3D printer (10), comprising a recoater (30) and a recoater cleaning device (50). The recoater (30) has a container (32) defining an inner cavity (34) for receiving particulate building material, and a dispensing region (36) for dispensing the particulate building material. The recoater cleaning device (50) has a cleaning web (52). The recoater cleaning device (50) and the recoater (30) are designed to move the dispensing region (36) and/or the cleaning web (52) relative to one another in order to clean the dispensing region (36) using the cleaning web (52).
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B08B 1/00 - Nettoyage par des procédés impliquant l'utilisation d'outils, de brosses ou d'éléments analogues
10.
AFTER-TREATMENT PROCESS FOR INCREASING THE HOT STRENGTH OF A SHAPED PART PRODUCED FROM PARTICULATE MATERIAL AND BINDER, 3D PRINTING ARRANGEMENT AND SHAPED PART
The invention provides an after-treatment process for increasing the hot strength of a shaped part (100) produced from particulate material and binder in which the shaped part (100) is a shaped part produced by 3D printing (S72) and, after its production, is heated by using a heating device (40) (S30) and the heated shaped part (100) is exposed to an atmosphere created by feeding in water and enriched with gaseous water (S50).
B22C 1/16 - Compositions des matériaux réfractaires pour moules ou noyaux; Leur structure granulaire; Caractéristiques chimiques ou physiques de la mise en forme ou de la fabrication des moules caractérisées par l'emploi des agents liants; Mélange d'agents liants
B22C 1/18 - Compositions des matériaux réfractaires pour moules ou noyaux; Leur structure granulaire; Caractéristiques chimiques ou physiques de la mise en forme ou de la fabrication des moules caractérisées par l'emploi des agents liants; Mélange d'agents liants d'agents inorganiques
B22C 9/12 - Traitement des moules ou noyaux, p.ex. séchage, étuvage
11.
3D PRINTER HAVING A COATER AND A COATER-CLEANING DEVICE
The invention relates to a 3D printer (10) having a coater (30) and a coater-cleaning device (50). The coater (30) has a container (32), which defines an inner hollow space (34) for receiving particulate building material, and a discharge region (36) for discharging the particulate building material, said coater being movable into a cleaning position in which the coater is arranged above the coater-cleaning device (50). The coater-cleaning device (50) has a wiper element (52) for wiping the discharge region (36), said wiper element being formed from an absorbent material which is configured to receive a liquid cleaning agent inside the material.
A 3D printer (10) having a coater (30) and a coater cleaning devise (50) is disclosed, wherein the coater (30) defines a container (32), which has an inner cavity (34) for receiving particulate construction material and an elongated dispensing area (36) for dispensing the particulate construction material and which can be moved to a cleaning position in which it is arranged above the coater cleaning device (50), wherein the coater cleaning device (50) has a wiping element (54) and a drive device for moving the wiping element, and wherein the drive device is designed for moving the wiping element (54) for cleaning the dispensing area (36) along same when the coater (30) is above the coater cleaning device (50). A method for cleaning a coater of a 3D printer is therefore disclosed.
The invention relates to a 3D printer (100) which is designed to produce, in layers, a three-dimensional component by forming superimposed layers of a particulate material and by selectivity hardening a partial region of the respective component layer. The 3D printer (100) is designed to produce one or more first three dimensional components in a first chamber (B1) arranged in the 3D printer, and simultaneously, one or more second three-dimensional components in a second chamber (B2) which is adjacent to the first chamber and which is at a horizontal distance thereto and which is arranged in the 3D printer.
The invention relates to a coating arrangement (1) for a 3D printer (100), comprising a coating apparatus (3) with a carrier structure (21a-21c) and a container (17) which is fastened to the carrier structure and defines an internal hollow space for receiving particulate construction material, said internal hollow space leading into an opening for discharging the particulate construction material; a vibration device (23) which is designed to set into vibration the particulate construction material which is received in the container and thereby influence the output of construction material from the opening; and an application element (15a) mounted on the coater, which is adapted to pass over the particulate construction material discharged via the opening in order to thus level and/or compress the discharged particulate material; and/or a closure device (31) which is designed to selectively close the opening and comprises a closure element (31a) fastened to the coating apparatus (3), the passing element (15a) and/or the closure element (31a) being fastened to the carrier structure in a vibration-decoupled manner by a vibration generated in the container (17) by the vibration device.
The invention relates to a coating arrangement (1) for a 3D printer, which comprises a coating device (3) which comprises a container (17) defining an internal hollow space used to receive particulate construction material, said internal hollow space leading into an opening for discharging said particulate construction material, and an application element (15a) from which an application surface which is oriented downwards is formed and which is designed to pass over the construction material discharged via the opening in order to thus level and/or compress the discharged particulate material. Said coating arrangement (1) also comprises an adjusting device (13) which is designed to variably adjust an angle of inclination of the application element (15a).
The invention relates to a coating arrangement (1) for a 3D printer, comprising a coater (3) with a container (17), which defines an inner hollow space for receiving particulate building material, said hollow space leading into an aperture for delivering the particulate building material to a construction field, as well as a closing device (31) which is designed to selectively close the opening for delivering the particulate building material.
F16K 7/07 - Dispositifs d'obturation à diaphragme, p.ex. dont un élément est déformé, sans être déplacé entièrement, pour fermer l'ouverture à diaphragme tubulaire dont l'étranglement est assuré par une force extérieure radiale par pression d'un fluide
A method is disclosed for unpacking a component (16), produced by means of a generative manufacturing method, from a particulate matter filler (18). In the method, an auxiliary frame (20), which has a vertical peripheral wall structure (22) open towards the bottom, is arranged over a vertical peripheral wall structure (12) of a construction box (10). Further, a construction platform (14) of the construction box (10) is driven upward such that the particulate matter filler (18) containing the component (16) is transferred from the construction box (10) to the auxiliary frame (20). Further, the auxiliary frame (20), with the received particulate matter filler (18) containing the component (16), and the construction box (10) are moved apart from each other, and the component (16) is unpacked at least partially out of the particulate matter filler (18) and removed from the auxiliary frame (20).
The invention relates to a method for unpacking a component (11) produced by means of an additive product method from a particulate-material fill (9) of loose, unconsolidated particulate material, which fill is arranged together with the component (11) in a construction chamber (5) and surrounds the component (11). In order to unpack the component (11), the particulate-material fill (9) surrounding the component (11) is converted into a fluidized bed, such that the loose, unconsolidated particulate material is fluidized, and the fluidized unconsolidated particulate material is drained from the construction chamber (5) downward. The invention further relates to a device for use in the method.
The invention relates to a coating device (400) that can be moved horizontally and that has an elongated metering shaft (410) and an elongated storage container (420) arranged above said metering shaft (410). The metering shaft (410) and/or the storage container (420) are connected to the coating device (400) such that they can be pivoted around a pivot axis (S) into a cleaning position in which an outlet opening (422) of the storage container (420) and a supply opening (414) of the metering shaft (410) are exposed.
B29C 67/00 - Techniques de façonnage non couvertes par les groupes , ou
B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittage; Appareils spécialement adaptés à cet effet
B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
The invention relates to a print head cleaning device (700) having a recess (710) and at least one wiper element (720) that is movably mounted in such a way that said wiper element can be moved out of a print head cleaning position, in which the wiper element (720) is oriented upwards and arranged at least partially above the recess (710) so that an underside of a print head can be cleaned with said wiper element (720), and into a wiper element regeneration position, in which the wiper element (720) is at least partially received in the recess (710) so that the wiper element (720) can be cleaned in said recess (720). Said wiper element can then be moved back into the print head cleaning position.
The invention relates to a construction box (200) comprising a front wall (220), a rear wall and two side walls (224, 226), which delimit a construction box interior that houses a height-adjustable construction platform (210). The construction box (200) has dedicated travelling gear (250) integrated into the construction box for propelling said box (200) between a construction position, in which the construction box (200) is positioned within the frame (150) of the system (100) to allow the shaped body to be built up and an additional construction box position, such as a construction box unpacking position, in which the construction box (200) is propelled out of the frame (150) of the system (100) to permit the unpacking of the built-up shaped body.
B29C 67/00 - Techniques de façonnage non couvertes par les groupes , ou
B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
B65D 85/68 - Réceptacles, éléments d'emballage ou paquets spécialement adaptés à des objets ou à des matériaux particuliers pour machines, moteurs ou véhicules assemblés ou en pièces détachées
B61C 11/04 - Locomotives ou automotrices caractérisées par la manière dont l'effort de traction est appliqué; Disposition des organes de roulement autres que les roues motrices normales l'effort de traction étant appliqué à des crémaillères
The invention relates to a pressure device (500) for a rapid-prototyping system (100), comprising an elongated horizontal pressure head support (520) that can be propelled in a first horizontal direction lying perpendicular to the longitudinal axis of the pressure head support, over a construction area, and comprising a pressure head (510) with at least one pressure head nozzle (514) for the controlled delivery of a binding agent. The pressure head (510) is mounted on a guide carriage (530) that is guided on the pressure head support (520) and can be displaced along the pressure head support longitudinal axis and the pressure head (510) is located underneath the pressure head support (520) and at least partially engages with the latter from below.
The invention relates to the delimitation of the construction area in a rapid-prototyping system. A system (100) for the layered construction of a shaped body has a construction box (200) that comprises a front wall (220), a rear wall and two side walls (224, 226) delimiting a construction box interior which is open at the top, which houses a height-adjustable platform (210) and which defines a construction area above the construction platform (210), in which area the shaped body can be built up when the construction box (200) is in a construction position. The system also comprises a first fixed delimitation plate (158) with a horizontal upper face forming a delimitation of the construction area that partially surrounds the periphery of the construction area and extends along a first construction box wall (224), when the construction box is in the construction position. The region of the upper edge of the first construction box wall (224) has a horizontal edge surface (224c), which is partially overlapped by the first delimitation plate (158) in the construction position, thus forming a gap (s) between the underside of said delimitation plate (158) and the horizontal edge surface (224c). The gap (s) is dimensioned in such a way that material introduced into the area lying outside the construction area collects in the gap (s) as excess material.
The invention relates to an installation (100) for the layered construction of a shaped body, said installation having a coating device (400) and a coating device cleaner (600). Said coating device (400) can be moved horizontally across a construction field in order to apply a uniform layer of construction material to be hardened, to said construction field. Said coating device has an elongated metering shaft (410) on the underside of which a longitudinal slot (412) is provided in order to dispense the construction material as the metering shaft (410) moves across said construction field. The coating device cleaner (600) is mounted on a construction frame (150) of the installation and is used to clean the metering shaft (410). The coating device cleaner (600) has an elongated wiper element (610) that is at least partially received in a construction material collection container (620), underneath the metering shaft (410) of the coating device (400).
The invention relates to a rapid prototyping installation 100 for the layered construction of a shaped body, said installation being provided with a coating device 400 and with a mixing unit 300. The coating device 400 can be moved horizontally into a supply station in order to load said coating device 400 with construction material, and across a construction platform in order to apply a layer of the construction material onto the construction platform. The mixing unit 300 has a mixer 310, arranged above the coating device 400 and integrated into the installation, for producing a homogeneous mixture of a first component and a second component. The mixer 310 has a outlet opening 312 that is, when the coating device is in the supply position, arranged over said coating device 400 such that the construction material prepared in the mixer 310 can be fed to the coating device via said outlet opening 312.
brevets
