Chromatography control method used in low-speed printing process of electronic shaft intaglio printing press

A control method and printing process technology, applied in the field of color register control, can solve the problem of low color register accuracy and so on

Inactive Publication Date: 2015-07-01
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for controlling color registration in the low-speed printing process of an electronic axis gravure printing machine, which solves the technical problem of low color registration accuracy in the low-speed printing process in the prior art

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  • Chromatography control method used in low-speed printing process of electronic shaft intaglio printing press
  • Chromatography control method used in low-speed printing process of electronic shaft intaglio printing press
  • Chromatography control method used in low-speed printing process of electronic shaft intaglio printing press

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Embodiment Construction

[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0037] The control system of the gravure printing machine is composed of two parts: the tension control system and the color register control system. The purpose of tension control is to maintain the tension balance of the rewinding and unwinding part of the printing equipment, so as to avoid the occurrence of printing material wrinkles and being broken, and to lay the foundation for the color registration control of the printing unit; The color registration error caused by it can improve the color registration accuracy and product quality. From the perspective of control objectives, the two control systems are different, but in essence, the core problems they solve are both tension control problems. In the rewindi...

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Abstract

The invention relates to a chromatography control method used in the low-speed printing process of an electronic shaft intaglio printing press, and belongs to the field of printing control. According to the method, a feedforward decoupling PD control algorithm is adopted, the bad influence of the pre-chromatography control amount on a subsequent color set is eliminated in the low-speed operating process, the response speed of the system is increased, and the chromatography precision of the system is improved. Meanwhile, the decoupling depth can be set, and the effectiveness of the decoupling algorithm is guaranteed by selecting an appropriate decoupling depth. The chromatography control method used in the low-speed printing process of the electronic shaft intaglio printing press can be widely applied to practical work, and a good effect is achieved.

Description

technical field [0001] The invention relates to a color registration control method in the low-speed printing process of an electronic shaft gravure printing machine, which belongs to the field of printing control. Background technique [0002] In the printing technology, the color pattern is decomposed into several single-color patterns before printing, and then respectively carved on the circular cylinder to make a printing plate roller. When printing, the printing material passes through each plate roller in turn, and the corresponding monochrome patterns are sequentially printed on the printing material. When passing through the last plate roller, a color pattern composed of several monochrome patterns is completed. Therefore, in the printing process, there is a problem of accurate positioning between monochrome patterns, that is, a problem of color registration. When there is a deviation in the relative position of the two monochromatic patterns, a certain method must ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F33/16
Inventor 陈智华石晓龙张征张盼朱功章邓忠华郑英
Owner HUAZHONG UNIV OF SCI & TECH
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