Cylinder device for printing press

A technology for printing presses and cylinders, applied in printing presses, rotary printing presses, printing and other directions, can solve the problems of inability to adjust printing pressure with high precision and complexity, and achieve the effect of simple structure and high-precision printing

Inactive Publication Date: 2017-02-22
KOMORI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, among the three cylinders, since it is necessary to adjust the printing pressure between each other, the printing pressure adjustment mechanism composed of the eccentric bearing and its driving device becomes complicated, and there is a possibility that the printing pressure cannot be adjusted with high precision.

Method used

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  • Cylinder device for printing press
  • Cylinder device for printing press
  • Cylinder device for printing press

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0050] figure 1 The multi-color pattern printing machine shown is a printing press that combines a multi-color pattern printing section and a double-sided offset printing section.

[0051] That is, as figure 1 As shown, the multi-color pattern printer is provided with a supply unit 10, a multi-color pattern printing unit 11, a double-sided offset printing unit 12, and a discharge unit (not shown) in this order from the upstream side to the downstream side in the paper feeding direction. As a result, the paper supplied from the supply unit 10 is transferred one by one to the impression cylinder 18 of the multi-color pattern printing unit 11 via the swing device 13 and the four transfer rollers 14, 15, 16, 17, and then supplied to the printing unit 11 Between the impression cylinder 18 and the blanket cylinder 19.

[0052] In the multi-color pattern printing section 11, three partial plate cylinders 20, collective blanket cylinders 21, collective plate cylinders 22, blanket cylinders...

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PUM

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Abstract

Provided is a cylinder device for a printing press, which is simple in configuration, and with which the printing pressure in at least three cylinders can be adjusted in a highly accurate manner. The device is provided with: a collecting plate cylinder (22) supported so as to be capable of moving towards or away from a collecting blanket cylinder (21) and a blanket cylinder (19); an eccentric inner metal (42) that rotatably supports the collecting plate cylinder (22), and that by rotating moves the collecting plate cylinder (22) towards or away from the collecting blanket cylinder (21); a hydraulic cylinder (45) that rotates the eccentric inner metal (42); an eccentric outer metal (43) that axially supports the eccentric inner metal (42), and that by rotating moves the collecting plate cylinder (22) towards or away from the blanket cylinder (19); a drive device (46) for rotating the eccentric outer metal (43); a stopper (49) provided to a main machine frame (44); and an adjustment bolt (47) provided to the eccentric inner metal (42), for abutting the stopper (49) when the collecting plate cylinder (22) moves towards the collecting blanket cylinder (21).

Description

Technical field [0001] The invention relates to a roller device of a printing press. Background technique [0002] In the printing of securities, for the purpose of anti-counterfeiting, various printing methods such as intaglio, letterpress, and offset are complicatedly combined. When printing portraits and denominations, use gravure printing that can obtain slender and clear lines; when printing serial numbers, use relief printing that can print easy-to-read clear text; when printing shading, use multi-color printing Lithographic (offset) printing. In addition, as a part of the shading, multi-color pattern printing, which is a special printing method, is further adopted. [0003] In multi-color pattern printing, for example, inks of different colors are attached to a plurality of partial plate cylinders, and then the ink attached to each partial plate cylinder is collected by the collective blanket cylinder and the collective plate cylinder, and transferred to the passing On th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F13/28B41F11/02B41F13/24
CPCB41F11/02B41F13/32B41F13/36
Inventor 须藤崇
Owner KOMORI CORP
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