Intaglio process scraper device

Abstract

The present invention relates to a scraper device of gravure printing machine. Said scraper device comprises the following components: A. in the shaft sleeve of each of two sides of scraper synchro lifting an up-down movement column is positioned respectively; B. on the top end of said movement column a plate-turning shaft sleeve is fixedly mounted, in said shaft sleeve a turnable scraper plate-turning shaft is positioned; and C. on the scraper plate-turning shaft a scraper carrier device also is positioned, and said device also is equipped with a scraper-skipping prevention mechanism. Said invention also provides the concrete structure of said scraper-skipping prevention mechanism.

Description

technical field [0001] The invention relates to a key device of a gravure printing machine used for printing decorative coils, in particular to a scraper device of the gravure printing machine. Background technique [0002] my country is a populous country, but forest resources are extremely poor, so the use of paper instead of wood has been widely used in urban and rural areas of our country for more than ten years. The so-called paper instead of wood is to use paper (also PVC, aluminum foil and other coils) to print on the surface, so that the surface has wood grain or stone grain, cartoon grain, etc., and then used as the surface finish of wood-based panels, widely used It is applied in the decoration industry, furniture industry, office supplies, laminate flooring and other fields to meet people's needs for beautifying life and improving quality of life. The gravure printing machine is the only printing machine that can be used for decorative coil printing, but it has t...

AI Technical Summary

Problems solved by technology

The gravure printing machine is the only printing machine that can be used for decorative coil printing, but it has the following main defects: 1. The scraper of the gravure printing machine is very prone to knife jumping

Knife jumping is the most troublesome problem in gravure printing. First, it is unpredictable when the knife jumping occurs. Second, once the knife jumping occurs, it will cause defective printing. Third, the frequency of occurrence is relatively high.

2. The scraper device of the gravure printing machine cannot adapt to different diameters of rollers at the same time

In order to fully express the beautiful and real patterns of wood grain, we usually make the original wood grain texture when making the printing master (the master is the gravure printing roll), so the diameter of the wood grain roll is determined. Diversification: The minimum diameter of the general wood-grain plate roller is about 240 mm, and the largest is even about 700 mm. The most frequently used diameter is 300-450 mm. The traditional gravure printing machine scraper cannot adapt to the diameter of the plate roll. big change

Even if it is barely used, the printing quality will be seriously affected due to poor scraping angle of the squeegee or easy knife jumping, or even printing cannot be done.

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