Inclined open technology of single sheet paper gravure machie printing plate rotary drum and flat sheet type gravure technology

Abstract

The present invention relates to printing machinery manufacture and printing industry, and provides a new structure form of plate cylinder for designing and manufacturing single-paper gravure printing machine. In order to make single-paper gravure printing machine made up by said invention can use flat-tension gravure made up by using new gravure corrosion process a slot must be cut on the plate cylinder, and said slot must be oblique, so that the printing plate can be easily mounted or removed, and can be easily fixed, therefore said invention is a new oblique opening and closing technology.

Description

Technical field [0001] The invention relates to a method for manufacturing a plate cylinder of a sheet-fed gravure printing press using a flat-sheet gravure. Background technique [0002] The printing plate used for gravure printing is usually called a gravure cylinder. It is an integral cylinder or a sleeve fixed on a shaft and positioned and fixed. They mainly go through two ways to achieve image transfer, that is, the original image is transferred to the plate cylinder. on. [0003] 1. Engraving the gravure cylinder, this form of the cylinder is mainly used by the electronic engraving machine to engrave cells corresponding to the original image on the surface of the cylinder with a knife or directly burn the cells on the surface of the cylinder with a laser beam. . [0004] A manuscript to be copied is scanned point by line by the scanner. During the scanning process, the optical signal is converted into an electrical signal (image signal) and the image level correction curve ...

AI Technical Summary

Problems solved by technology

[0006] 2. Corrosion gravure cylinder, this type of cylinder mainly uses y, m, c, k different color film sheets (hanging net) to expose the photosensitive layer coated on the surface of the cylinder through the printing process and the image will be developed after development. After being transferred to the cylinder, the gravure cylinder corresponding to the image of the original manuscript is obtained after being etched, but the image level obtained by etching the intaglio is slightly inferior, because the line-to-wall ratio is too low up

[0012] From the above-mentioned prior art, it is not difficult to see that the production process of the current gravure cylinder is very complicated, and the investment equipment is expensive, and the replacement of different products must replace the cylinder as a whole, so the cost is very high

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