Regulating device of register system of gravure printing machine

Abstract

The invention relates to a regulating device of a register system of a gravure printing machine, belongs to the technical field of gravure printing and solves the problems of large paper consumption and high printing cost as an aluminum silver edge needs to be reserved on the side edge of laser paper to a print white ink color mark when the existing laser paper is registered. The regulating device comprises a support, wherein a rotary pin on a regulating block on the support is inserted into a pin hole in a magic eye fixing block. A first eyelet, a second eyelet and a third eyelet are formed in the magic eye fixing block, and a first fastening screw, a second fastening screw and a third fastening screw are respectively arranged on the first eyelet, the second eyelet and the third eyelet. A locking threaded hole is formed in the magic eye fixing block, a main regulating track is arranged on the regulating block, and a locking screw penetrates through the main regulating track to be installed in the locking threaded hole. A key groove is formed in the lower end of the support. During use, an angle between a magic eye and the surface of the paper is adjusted to an appropriate angle, so that the reflected light rays of the surface of the laser paper is weaker. When the magic eye reads the white ink color mark under the angle, a more stable pulse signal can be obtained, so that the register is stable.

Description

technical field [0001] The invention belongs to the technical field of gravure printing, and relates to a photoelectric eye installation device used in cursor overprinting. Background technique [0002] The printing of laser paper has become the main raw material for modern packaging printing. Due to the aluminum layer on the surface and its own micro-stripe grating effect, laser paper shows high reflection and sees through colorful effects, which has a good decorative effect. [0003] However, when it is necessary to print the base color of the base on the laser paper—the white ink color mark, if it is directly printed on the surface of the laser paper according to the existing electric eye irradiation angle, the electric eye cannot catch the cursor and cannot achieve accurate positioning. This is because , The characteristics of laser paper determine that the surface of the paper is a reflective paper surface, and the diffuse reflection light is very strong at most angles....

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of large paper consumption and high printing cost caused by the need to reserve aluminum and silver edges on the side of the laser paper to print white ink color marks when overprinting on laser paper in the prior art, the invention provides a gravure printing machine register System adjustment device, its embodiment is as follows:

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