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Cylinder unit of printing press

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

Inactive Publication Date: 2019-02-15
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 unit of printing press
  • Cylinder unit of printing press
  • Cylinder unit of printing press

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0049] figure 1 The polychromatic printing press shown is a printing press that combines a polychromatic printing section and a double-sided offset printing section.

[0050] That is, as figure 1 As shown, the multicolor printing machine includes a supply unit 10, a multicolor printing unit 11, a double-sided offset printing unit 12, and a discharge unit (not shown) in this order from the upstream side toward the downstream side in the paper feeding direction. As a result, the sheets fed from the feeding section 10 are transferred one by one to the impression cylinder 18 of the multi-color pattern printing section 11 via the oscillating device 13 and the four transfer cylinders 14, 15, 16, and 17, and are then fed to the between the impression cylinder 18 and the blanket cylinder 19.

[0051] The multi-color pattern printing section 11 includes three partial printing cylinders 20 , a collective blanket cylinder 21 , a collective printing cylinder 22 , a blanket cylinder 19 ,...

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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 present invention relates to a cylinder unit of a printing press. Background technique [0002] In the printing of securities, various printing methods such as gravure, letterpress, and lithography are complexly combined for the purpose of preventing counterfeiting. When printing portraits and denominations, use gravure printing that can obtain thin and clear graph lines, when printing serial numbers, use letterpress printing that can print legible and legible text, when printing shading, use multicolor printing. Lithographic (offset) printing. In addition, a part of the shading is further printed by multi-color pattern (ザンメル) which is a special printing method. [0003] In multi-color pattern printing, for example, the inks of different colors are respectively 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 cylind...

Claims

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Application Information

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