A wide-format high-speed wood grain paper printing machine

Abstract

The invention relates to a wide-width high-speed printing machine for woodgrained paper. The machine comprises an uncoiling unit, an uncoiling traction system, a plurality of printing units, a coiling traction mechanism and a coiling unit which are sequentially arranged based on the process; each printing unit comprises a printing body; a drying structure is arranged at a subsequent station of each printing body, comprising a bullet-shaped supporting frame, wherein the bullet-shaped supporting frame is composed of two arc-shaped surfaces; a plurality of positioning guide rollers for fixing paper tapes are arranged on the outer surfaces of the supporting frames; an air box which is in a shape matched with the arc shape of the outer surface of each supporting frame 33 is arranged at the outside of the outer surface of each supporting frame. According to the machine, a paper coil is supported by hydraulic propping and a variable width discharging and coiling mechanism is utilized for coiling and uncoiling; the width ranges from 1,210 to 2,150mm; compared with the traditional expansion shaft chuck, the machine has the advantages that the labor intensity in material replacement is reduced, the time of material replacement can be decreased, and the production can be performed at a high speed.

Description

[0001] 【Technical field】 [0002] The invention relates to a printing machine, especially a wide-width high-speed wood grain paper printing machine. [0003] 【Background technique】 [0004] The existing wood-grain paper printing machine adopts the rewinding and unwinding structure of the air shaft and the chuck, which is time-consuming and laborious when changing the roll; the cylinder supports the swing arm structure of the cutter; If the product requirements are not met, the rubber roller and steel roller are pressed against each other, the single roller floating pendulum roller, the single side drying bellows, the product cannot be fully dried, and other structures, the wood grain paper printing machine can basically reach the production speed of 200m / min. But it has been unable to continue to improve. There are several reasons that restrict its speed-up, such as long time for rewinding and unwinding, unreliable feeding, occasional failures, large fluctuations in tension du...

AI Technical Summary

Problems solved by technology

[0004] The existing wood-grain paper printing machine adopts the rewinding and unwinding structure of the air shaft and the chuck, which is time-consuming and laborious when changing the roll; the cylinder supports the swing arm structure of the cutter; If the product requirements cannot be met, the traction of the rubber roller and the steel roller against the pressure, the single-roller floating pendulum roller, the single-side drying bellows, the product cannot be fully dried, and other structures, the wood grain paper printing machine can basically reach the production speed of 200m / min

But it is no longer possible to continue to improve

There are several reasons that restrict its speed-up, such as long time for rewinding and unwinding, unreliable feeding, frequent failures, large fluctuations in tension during feeding, poor registration accuracy, and insufficient drying of products, etc.

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