Printing machine using racks for limiting and anti-damage

Abstract

The invention discloses a printing machine using racks for limiting and anti-damage. The printing machine using the racks for limiting and anti-damage comprises a machine frame, an embossing roller lifting device, a printing roller lifting device and a limiting and anti-damage device, a limiting and anti-damage unit comprises upper gears, limiting racks and lower gears, lifting supporting racks are formed on the end faces, far away from each other, of a pair of lifting supporting blocks, the lower gears are pivoted between the front side walls and the rear side walls of lower lifting grooves,the limiting racks are arranged in rack lifting grooves in a lifting mode, the lifting supporting racks and the limiting racks are located on the left sides and the right sides of the lower gears, moreover, the lifting supporting racks and the limiting racks are meshed with the lower gears correspondingly, embossing roller lifting racks are formed on the end faces, far away from each other, of a pair of vertical parts of an embossing roller lifting support, a pair of embossing roller lifting racks are positioned between the pair of upper gears, the embossing roller lifting racks are meshed with the upper gears on the corresponding sides, the pair of limiting racks are located on the two sides of the pair of upper gears, and the limiting racks are meshed with the upper gears on the corresponding side in the lifting process. According to the printing machine, the printing quality is ensured, and the service life of the printing machine is prolonged.

Description

technical field [0001] The invention relates to the technical field of printing equipment, in particular to a rack-limited and anti-damage printing machine. Background technique [0002] Some paper cutters preliminarily cut the printed paper, then arrange and stack the cut paper, and then further cut the stacked paper, so the work efficiency is low. [0003] The embossing mechanism of the gravure printing machine in the prior art is mainly divided into a direct pressure type and a swing type, wherein the direct pressure type imprinting mechanism mainly pushes the embossing roller to move up and down through two cylinders arranged at both ends of the embossing roller, thereby Realize imprinting and release action. At that time, the embossing mechanism had the following disadvantages: 1. Since the up and down movement of the embossing roller was completed by two different cylinders, it was easy to cause the down movement of the two ends of the embossing roller to be out of sy...

AI Technical Summary

Problems solved by technology

At that time, the embossing mechanism had the following disadvantages: 1. Since the up and down movement of the embossing roller was completed by two different cylinders, it was easy to cause the down movement of the two ends of the embossing roller to be out of sync, which would affect the embossing of the printing machine. Quality; 2. When the printing machine fails or the power is cut off, the piston rod of the cylinder will drop under the gravity of the embossing roller, and the embossing roller will press on the printing roller. The long-term pressing of the embossing roller will cause the printing tube to bend Even damaged, which seriously affects the normal operation of the printing press

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