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Drum type shift printing machine in use for board press in large area

A lithographic and roller-type technology, applied in printing presses, rotary printing presses, gravure rotary printing presses, etc., can solve the problems of low printing quality, uneven contact surface contact, unsuitable for large-area workpiece printing, etc. Uniform, high working efficiency and fast effect

Inactive Publication Date: 2006-04-19
虞选勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pad printing head of the existing device has a block structure, which is not suitable for large-area workpiece printing due to uneven contact when the contact surface is too large
At present, the printing of large plate-shaped objects can only be done by screen printing, and the printing quality is not high.

Method used

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  • Drum type shift printing machine in use for board press in large area

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Embodiment Construction

[0011] For simplification, the frame and driving device are omitted in the drawings.

[0012] Referring to the accompanying drawings, the drum type pad printing machine of the embodiment includes a printing plate, a pad printing intermediate, a driving device, and a frame, wherein the printing plate 7 adopts a roller gravure, the pad printing intermediate 10 adopts a flexible roller, and the printing plate 7 and the pad printing intermediate body 10 are driven by gear meshing to ensure the synchronization between the two and prevent relative sliding from affecting the printing quality.

[0013] Next to the pad printing intermediate 10, there is a waste ink removal roller 2, which is in close contact with the pad printing intermediate 10, and is driven by gear engagement to absorb the ink on the pad printing intermediate 10 when there is no workpiece or a gap between the workpieces, so as to prevent Overlapping ink blots appear on the pad printing intermediate 10 .

[0014] An...

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Abstract

A drum-type transfer printer for large-area planography is composed of the print plate (roller intaglio), the transfer intermediate (flexible drum), drive unit, machine frame, excessive ink removing roller close to said transfer intermediate, ink box under print plate, ink scraper close to print plate, and pressing roller. Its advantages are high printing speed and high productivity.

Description

technical field [0001] The present invention relates to printing machines, especially improvements to pad printing machines. Background technique [0002] The existing pad printing machine adopts a flat plate gravure, and the pad printing head, that is, the pad printing intermediate, adopts a flexible rubber block. The gravure is set in the ink cartridge, and a scraper is arranged on it. The remaining ink, and then drive the pad printing head to contact with the gravure, so that the ink in the upper pattern or text mark is printed on the pad printing head, and finally driven by the driving device, the pad printing head contacts the workpiece, and the above ink is transferred on the on the workpiece. The pad printing head of the existing device has a block structure, and because the contact surface is too large, the contact is uneven, so it is not suitable for large-area workpiece printing. At present, only screen printing can be used to print large plate-shaped objects, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F9/00B41F35/06
Inventor 虞选勇
Owner 虞选勇
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