Cutting device for printing machine

Abstract

The invention discloses a cutting device for a printing machine. The cutting device comprises cutting arms, couplers, a guide shaft, a fixing plate, a fixing piece, a cutting arm cylinder, a piston rod, a first crank, a bearing, a cut-off knife cylinder, a second crank, cut-off knife arms, a cut-off knife shaft, a cut-off knife, a press roller cylinder, a third crank, a press roller arm, a press roller, a press roller shaft, a transverse beam, a slide rail, a draught fan cylinder, an ejection rod, an air cooler, a water inlet hose, a circulation channel, a water outlet, a hold-up tank, a refrigeration compressor, a water collation tank and a lift pump. According to the cutting device, the structure is reasonable and simple, using is convenient, wastepaper can be effectively removed when printed paper is cut, the cleanness of the paper is ensured, and the situation that the service life of the machine is influenced due to overmuch wastepaper is avoided; and meanwhile, the surface temperature of the press roller is effectively lowered, so that a paper belt subjected to printing and drying can be quickly cooled, cutting is facilitated, the product quality is ensured, normal production line operation is met, the production efficiency is improved, and using is flexible and convenient.

Description

technical field [0001] The invention relates to the technical field of printing machines, in particular to a cutting device of a printing machine. Background technique [0002] A machine for printing text and images. Modern printing machines are generally composed of plate loading, ink application, embossing, paper feeding (including folding) and other mechanisms. Its working principle is: first make the printing plate of the text and image to be printed, install it on the printing machine, and then apply the ink to the place where the text and image are on the printing plate manually or by the printing machine, and then transfer it directly or indirectly Print onto paper or other substrates such as textiles, sheet metal, plastic, leather, wood, glass, and ceramics to reproduce the same print as the printing plate. The invention and development of the printing press play an important role in the spread of human civilization and culture. After printing the paper, it is nece...

AI Technical Summary

Problems solved by technology

The invention and development of the printing press play an important role in the spread of human civilization and culture. After printing the paper, it is necessary to cut the paper. During the cutting process, a large amount of waste will be generated. If it accumulates too much, it will affect the mechanical life and Cutting accuracy. At the same time, the temperature of the paper is too high after printing and drying. If the temperature is not cooled in time for cutting, the paper will be cut and curled, which will affect the quality of the paper.

Images