A gravure offset printing machine

Abstract

The invention discloses a gravure offset printing machine, which includes an unwinding substrate wrapped with a substrate, which can rotate at a constant speed and send out the substrate wound on the unwinding reel at a constant speed; the sending end of the substrate is clamped by an impression cylinder and a rubber cylinder, The impression cylinder and the rubber cylinder are set at the same position on both sides of the substrate, and can rotate at the same speed as the unwinding; there is positive pressure between the impression cylinder and the rubber cylinder, and the rubber cylinder is stained with ink; the rubber cylinder and The gravure cylinders are in contact with each other, set to frictionally roll without relative sliding, and have positive pressure; a part of the gravure cylinder is set in the ink tank, and when the gravure cylinder rotates in the ink tank, the ink on the ink tank will soak into the grooves on the gravure cylinder in the hole.

Description

technical field [0001] The invention relates to the field of printing, in particular to a gravure offset printing machine. Background technique [0002] In gravure offset printing, the rotating cylinder has a gravure cylinder, a rubber cylinder, an impression cylinder, etc., and the grooves of the gravure cylinder are filled with ink. The intaglio also has a background area from which surface-attached ink is peeled off by a doctor blade. The rubber cylinder that is in contact with the printing plate cylinder during its rotation is covered with a rubber surface that can adhere to the ink. The cylinder is a flexible body, reinforced blanket covering and rigid cylinder surface. The ink in the cavity of the intaglio is transferred to the surface of the rubber cylinder through separation, and when the substrate passes between the rubber cylinder and the plate cylinder, the image information is transferred to the substrate. The rubber roller needs to be under sufficient pressur...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of low product quality, low machine utilization rate, low production efficiency and complex structure of the gravure offset printing machine in the prior art, the purpose of the present invention is to propose a gravure offset printing machine, which can improve product quality, machine utilization rate and production efficiency , and simplify the mechanical structure

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