Rotary table digital printing machine and printing unit
First Claim
1. A rotary table digital printing machine for printing on work pieces in an inkjet digital printing method, comprising a machine frame on which a work piece rotary table is rotatably mounted about a rotation axis, the work piece rotary table is provided with a plurality of work piece carriers, which are all arranged with the same angular pitch and the same distance from the rotation axis, wherein a drive unit is assigned to the work piece rotary table for providing a rotary step movement, wherein said machine frame comprises at least one holding frame designed for receiving workstations, which workstations are adapted for processing of work pieces, wherein at least one workstation is attached to the holding frame and is designed as a printing unit for printing on work pieces, wherein the printing unit comprises the following components arranged in series along an extension axis parallel to the rotation axis of the work piece rotary table:
- a support frame supporting an inking unit;
a printing unit interface attached to the support frame;
a printing unit receptacle coupled to the printing unit interface;
a print head interface attached to the support frame opposite the printing unit interface; and
a print head module attached to the print head interface for receiving ink from the ink unit of the support frame, the print head module being adapted for dispensing ink droplets in a printing direction onto a work piece and comprising;
a print head carrier;
at least one print head fixed to the print head carrier; and
a carrier interface coupled to the print head interface,wherein the printing unit receptacle, the printing unit interface, the inking unit, the print head interface, the carrier interface and the print head module arranged along the extension axis are also arranged in a row arrangement extending along the printing direction.
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Accused Products
Abstract
Rotary table digital printing machine for printing on work pieces, including at least one workstation attached to a holding frame, which is designed as a printing unit for printing on work pieces and includes a support frame for receiving an inking unit and a print head module, the support frame including a printing unit interface for coupling with a printing unit receptacle associated with the holding frame and further including a print head interface designed for coupling with a print head module, with a print head module and with an inking unit adapted to provide a printing ink to the print head module, a print head carrier having a carrier interface adapted to be coupled to the print head interface, wherein the printing unit receptacle, the printing unit interface, the inking unit, the print head interface, the carrier interface and the print head module form a row arrangement arranged along the printing direction.
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Citations
18 Claims
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1. A rotary table digital printing machine for printing on work pieces in an inkjet digital printing method, comprising a machine frame on which a work piece rotary table is rotatably mounted about a rotation axis, the work piece rotary table is provided with a plurality of work piece carriers, which are all arranged with the same angular pitch and the same distance from the rotation axis, wherein a drive unit is assigned to the work piece rotary table for providing a rotary step movement, wherein said machine frame comprises at least one holding frame designed for receiving workstations, which workstations are adapted for processing of work pieces, wherein at least one workstation is attached to the holding frame and is designed as a printing unit for printing on work pieces, wherein the printing unit comprises the following components arranged in series along an extension axis parallel to the rotation axis of the work piece rotary table:
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a support frame supporting an inking unit; a printing unit interface attached to the support frame; a printing unit receptacle coupled to the printing unit interface; a print head interface attached to the support frame opposite the printing unit interface; and a print head module attached to the print head interface for receiving ink from the ink unit of the support frame, the print head module being adapted for dispensing ink droplets in a printing direction onto a work piece and comprising; a print head carrier; at least one print head fixed to the print head carrier; and a carrier interface coupled to the print head interface, wherein the printing unit receptacle, the printing unit interface, the inking unit, the print head interface, the carrier interface and the print head module arranged along the extension axis are also arranged in a row arrangement extending along the printing direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 17)
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13. A rotary table digital printing machine for printing on work pieces in an inkjet digital printing method, comprising a machine frame on which a work piece rotary table is rotatably mounted about a rotation axis, the work piece rotary table is provided with a plurality of work piece carriers, which are all arranged with the same angular pitch and the same distance from the rotation axis, wherein a drive unit is assigned to the work piece rotary table for providing a rotary step movement, wherein said machine frame comprises at least one holding frame designed for receiving workstations, which workstations are adapted for processing of work pieces, wherein at least one workstation is attached to the holding frame and is designed as a printing unit for printing on work pieces, wherein the printing unit comprises a support frame which is designed to receive an inking unit and a print head module and which has a printing unit interface which is designed for coupling with a printing unit receptacle associated with the holding frame, wherein the support frame comprises a print head interface which is adapted for coupling to a print head module, further comprising a print head module which is adapted for dispensing ink droplets in a printing direction onto a work piece and comprising a print head carrier and at least one print head fixed to the print head carrier, and further comprising an inking unit which is configured to provide ink to the print head module, the print head carrier comprising a carrier interface adapted for coupling to the print head interface, wherein the printing unit receptacle, the printing unit interface, the inking unit, the print head interface, the carrier interface and the print head module are arranged in a row arrangement extending along the printing direction, and
wherein the work piece carriers determine a work piece plane oriented normal to the rotation axis of the work piece rotary table and that the printing unit interface, the inking unit, the print head interface, the carrier interface and the print head module are arranged in the vertical direction above the work piece plane, and wherein at least one color reservoir and a cleaning module are arranged in an area arranged in the vertical direction below the work piece plane.
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18. A printing unit for use in a rotary table digital printing machine, comprising;
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a support frame supporting an inking unit, the inking unit comprising a color pipe for an ink supply, a discharge pipe for an ink discharge, and a valve unit connected to the color pipe and the discharge pipe for influencing an ink volume flow in the discharge pipe; a printing unit interface attached to the support frame; a printing unit receptacle coupled to the printing unit interface; a print head interface attached to the support frame opposite the printing unit interface; a print head module attached to the print head interface, the print head module being adapted for dispensing ink droplets in a printing direction onto a printing object and comprising a print head carrier, at least one print head fixed to the print head carrier, and a carrier interface coupled to the print head interface, wherein the printing unit interface, the inking unit, the print head interface, the carrier interface and the print head module are arranged in series along an extension axis extending parallel with the printing direction.
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Specification