A large rotary printing machine

Abstract

The invention discloses a large-scale rotary printing machine, the structure of which comprises: a printing machine body, a pressure balance device, a conveying table, a roller, an input window, and a feeder. device to solve this problem, the height position of the pressurizer is changed by the hydraulic rod of the pressurization balance device, and the strength of the pressure poured into the structure is used to control the lifting of the hydraulic rod and drive the pressurizer to realize the up and down movement. The equipment command applies different forces upwards to link the operation of the lifting seat. The lifting seat will control the plunger in the top block to lift up and down independently and lift up the capsule plate on its top surface. The airbag structure of the capsule plate will strengthen the strength of some areas of the printing table. In this way, the phenomenon of uneven printing pressure can be improved, and the overall pressure value of the plate surface can be equalized by applying individual pressure to the printing surface, so as to solve the problem of uneven printing pressure.

Description

technical field [0001] The invention relates to the field of printing machines, in particular to a large rotary printing machine. Background technique [0002] Rotary printing press is a kind of large-scale printing equipment, which is different from common printing machines. Rotary printing machines are generally very large, but the workload of corresponding rotary printing machines is huge, and the printing quantity can meet the demand of high output. Its most important component is the rotary wheel system of the rotary printing machine. The ink is printed on the paper through the continuous rolling of the rotary drum. The pressure of the printing machine has a deep influence on the printing quality. In comparison, in the effective printing area Maintaining a uniform and constant printing pressure inside can not only make the ink color of the printed matter uniform, the color difference is small, but also make the imprint size stable, but due to the manufacturing precision...

AI Technical Summary

Problems solved by technology

[0002] Rotary printing press is a kind of large-scale printing equipment, which is different from common printing machines. Rotary printing machines are generally very large, but the workload of corresponding rotary printing machines is huge, and the printing quantity can meet the demand of high output. Its most important component is the rotary wheel system of the rotary printing machine. The ink is printed on the paper through the continuous rolling of the rotary drum. The pressure of the printing machine has a deep influence on the printing quality. In comparison, in the effective printing area Maintaining a uniform and constant printing pressure inside can not only make the ink color of the printed matter uniform, the color difference is small, but also make the imprint size stable, but due to the manufacturing precision of the printing machine, the flatness of the printing plate and the thickness of the self-adhesive substrate cannot be completely uniform. It will cause uneven printing pressure and seriously affect the printing quality. Based on the above premise, this case developed a large rotary printing machine to solve this problem

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