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Novel printing roller engraving process

A type of plate roller and process technology, which is applied in the field of new plate roll engraving technology, can solve the problems of high proportion, poor leveling effect, easy blockage of dots, etc., and achieve the effect of wide adjustment range and increased engraving speed

Active Publication Date: 2022-03-18
DONGGUAN SHANGYUN LASER PLATE MAKING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the mesh number is low, the dots cannot be formed due to the high energy required. When the mesh number is high, the mesh wall will be thick, and the high proportion will cause the dots to be easily blocked and the leveling effect will be poor.

Method used

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  • Novel printing roller engraving process
  • Novel printing roller engraving process
  • Novel printing roller engraving process

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Experimental program
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Effect test

Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] A new engraving process of the plate roll of the present invention comprises the following steps: obtaining the main body of the plate roll to be engraved; engraving the negative dots on the outer wall of the plate roll body according to the preset dot imposition map by means of laser engraving; presetting the engraving Slash angle, pulse length, and FOC vector control parameters, engrave the positive engraving part of the negative dot on the outer wall of the main body of the plate roller; set the LAC parameter and DC parameter to engrave the negative engraving part of the negative dot; through the engraving machine Adjust the laser injection angle to adjust the smoothness of the bottom of the shadow dot; use a diamond polishing belt to polish the layout of the main body of the engraving roller; clean the main body of the roller after polishing with a cleaning...

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Abstract

The invention relates to the technical field of printing roller production, in particular to a novel printing roller engraving process which comprises the following steps: obtaining a to-be-engraved printing roller main body; engraving negative lattice points on the outer wall of the plate roller main body in a laser engraving manner according to a preset lattice point splicing pattern; an engraving oblique line angle, a pulse length and FOC vector control parameters are preset, and a forward engraving part of a negative lattice point is engraved on the outer wall of the plate roller main body; setting an LAC parameter and a DC parameter, and carving a negative carving part of the negative lattice point; the smooth degree of the bottom of the negative lattice point is adjusted by adjusting the laser emitting angle of the engraving machine; carrying out polishing treatment on the plate surface of the engraved plate roller main body by using a diamond polishing belt; and the polished plate roller body is cleaned up through a cleaning machine. And the lattice points are uniformly distributed and have good smoothness, so that the plate roller is not easy to block, the ink loading quantity is stable, the engraving speed is high, the engraving range is wide, and the ink loading quantity adjusting range is wide.

Description

technical field [0001] The invention relates to the technical field of plate roll production, in particular to a novel plate roll engraving process. Background technique [0002] In the field of printing, the existing plate roller negative dots are mainly engraved in editing mode, the main processing range is 100LPI--300LPI, LPI is the resolution, how many screen lines are arranged at equal distances per inch, in the traditional commercial printing plate making During the plate making process, it is necessary to add a screen in front of the original image. This screen is composed of grid-like transparent and opaque mesh lines. These mesh lines are also called gratings. Due to the physical characteristics of diffraction, after the light passes through the network lines, it forms points of different sizes that reflect the changes in the original image. These points are halftone points. A halftone point will not exceed the area of ​​a grid at most. The more layers in an image,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41C1/02
CPCB41C1/02Y02P70/10
Inventor 史天勇崔石磊
Owner DONGGUAN SHANGYUN LASER PLATE MAKING CO LTD
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