A device for printing hollow bodies includes a segmented wheel which can be rotated about a rotational axis. The segmented wheel has multiple segments, one behind the other, on the segmented wheel circumference, each for receiving a respective printing blanket. At least one of the printing blankets, which is arranged on one of the segments, is arranged on the hollow body to be printed in a rolling manner or at least in a rollable manner. Each of the printing blankets is arranged on a plate-shaped metal support. Each plate-shaped metal support is configured to be bendable and forms a metal printing blanket, together with the printing blanket arranged on the support. Each metal printing blanket formed by the respective support, together with the printing blanket arranged on the support, is arranged or can at least be arranged on one of the segments of the segmented wheel in a replaceable manner as a whole. Each support, which is arranged on one of the segments of the segmented wheel, of the corresponding metal printing blanket, is held on the support in one of a form-fitting and a force-fitting manner.
B41F 17/18 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles or material, or on articles with cylindrical surfaces on articles of finite length on curved surfaces of articles of varying cross-section, e.g. bottles, lamp glasses
B41F 30/04 - Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to transfer cylinders
B41F 17/22 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles or material, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors by rolling contact
A device for printing on hollow bodies has a plurality of printing units each having a printing cylinder. At least one of the printing units has an inking unit having a chambered doctor blade that provides printing ink. The chambered doctor blade system has at least one ink pan and a doctor blade holder in a single assembly. The single assembly of the chambered doctor blade system is retained in the inking unit only on one side. The assembly of the chambered doctor blade system forms a cantilever arm on a side frame of the inking unit. The assembly of the chambered doctor blade system can be moved axially parallel to the anilox roller and can be removed from the inking unit by that movement.
B41F 31/02 - Ducts, containers, supply or metering devices
B41F 31/04 - Ducts, containers, supply or metering devices with duct-blades or like metering devices
B41F 17/28 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on curved surfaces of conical or frusto-conical articles
B41F 5/22 - Rotary letterpress machines for indirect printing
An inking unit of a printing unit and a device for printing on hollow bodies each have a cylindrical lateral surface. The device comprises the inking unit. The inking unit has an anilox roller which receives a printing ink from an ink reservoir and has an inking roller placed against a printing cylinder of the printing unit. A rider roller is arranged axially parallel to the anilox roller in a region between the ink reservoir and the inking roller, that region being located subsequent to the ink reservoir in a direction of rotation of the anilox roller. The ink reservoir interacts with the anilox roller. The rider roller is placed against the anilox roller. The rider roller is rotationally driven by the anilox roller by friction. The inking roller is rotationally driven by the anilox roller by friction. The plate cylinder and the anilox roller are each independently rotationally driven by a motor.
B41F 31/02 - Ducts, containers, supply or metering devices
B41F 17/28 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on curved surfaces of conical or frusto-conical articles
B41F 31/06 - Troughs or like reservoirs with immersed, or partly immersed, rollers or cylinders
B41F 17/14 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles or material, or on articles with cylindrical surfaces on articles of finite length
B41F 17/20 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles or material, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors
B41F 17/22 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles or material, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors by rolling contact
4.
Printing unit having a plate cylinder and plate changer
A printing unit has a printing form cylinder. A plate changer is arranged in a manner which is allocated to the printing form cylinder. The plate changer has a bearing surface on which a printing form, which is arranged or is to be arranged on the printing form cylinder, can be laid. That bearing surface is arranged such that it can be moved to and fro between at least two defined positions longitudinally with respect to the rotational axis of the printing form cylinder. The printing form is arranged and registered on the bearing surface of the plate changer. At least two edges of a carrier for the relevant printing form, which are arranged at a right angle with respect to each other, are brought into physical contact with register pins which are arranged on the bearing surface of the plate changer. A first edge of the carrier of the relevant printing form is arranged to bear against a first register pin and a second edge, orthogonal with respect to the first edge, of the carrier of the relevant printing form, is arranged to bear against a second register pin. The printing unit is preferably arranged as a device for printing hollow bodies.
An apparatus is comprised of a plurality of printing units for printing hollow elements. A conveying device conveys the hollow elements to be printed into a printing zone of at least one of the printing units. At least one of the printing units includes a plate cylinder to which a plate replacing mechanism is assigned.
B41F 17/08 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles or material, or on articles with cylindrical surfaces
B41F 27/12 - Devices for attaching printing elements or formes to supports for attaching flexible printing formes
B41F 17/22 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles or material, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors by rolling contact
B41F 17/00 - Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
B41F 27/00 - Devices for attaching printing elements or formes to supports
patents
