Manufacturing method of high-precision intaglio roller

Abstract

The invention discloses a manufacturing method of a high-precision intaglio roller. The manufacturing method comprises the following steps that a steel roller base body is manufactured firstly, then the steel roller base body is plated with copper, wherein the thickness of the plated copper ranges from 200 micrometers to 300 micrometers, and the surface hardness of the plated copper ranges from 195 HV to 215 HV; secondly, the surface of the copper surface is treated, the eccentricity of a roller body needs to be measured firstly, after the eccentricity is confirmed to be 0-30 microns, the copper surface is turned and ground, the copper surface with the thickness being 20 microns is reserved after turning and grinding are performed, the copper surface is subjected to grinding machining of 800-mesh coarse grinding and 2500-mesh fine grinding, the roughness Ra after grinding is 0.25-0.35 microns, then the copper surface is polished, and the roughness Ra of the polished copper surface is 0.03-0.04 microns; and meanwhile, an image file can be made, and finally the roller surface is engraved and chromeplated. The problems that a traditional printing roller machining method is not high in machining precision, turning and grinding lines or grinding lines are prone to being generated, and consequently products are unqualified are solved.

Description

technical field [0001] The invention relates to the technical field of gravure printing, in particular to a method for manufacturing a high-precision gravure plate roll. Background technique [0002] At present, the main manufacturing process of traditional gravure printing plate rollers on the market is as follows: use seamless steel pipes, process the steel pipes to produce steel rollers according to the roller body processing size diagram provided by the manufacturer, and then coat the surface of the steel rollers with a layer of nickel After the nickel plating is completed, a layer of copper is plated on the surface of the roller body, and then the copper surface of the roller body is ground and polished. The whole production process takes more than two hours. During the processing, the plate roller has been loaded and unloaded many times. The operation is cumbersome and the labor intensity is high. When changing the equipment and processing, it is necessary to replace d...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for making high-precision gravure plate rolls, which solves the problem that the traditional plate roll processing method has low processing accuracy, and easily produces car-grinding lines or grinding lines, resulting in unqualified products