Paper cutter protective device capable of automatically detecting dullness of cutting knife

Abstract

The invention relates to the technical field of printing equipment, and discloses a paper cutter protective device capable of automatically detecting the dullness of a cutting knife. The paper cutter protective device comprises a rack, a pneumatic rod is inserted into the rack, a clamping jaw is movably connected to the bottom of the pneumatic rod, a cutting knife is fixedly connected to the interior of the rack, and a sleeve rod is slidably connected to the interior of the rack; and an ejector rod is slidably connected to the inner wall of the rack, a cleaning block is movably connected to the front face of the ejector rod, and a stop lever is fixedly connected to the top of the cleaning block. According to the paper cutter protective device, the pneumatic rod moves to drive support rods to move, when the support rods on the two sides make contact with each other, the pneumatic rod stop moving, a driving wheel rotates and moves under the action of a toothed plate at the moment, the driving wheel drives a detection block to slide, the detection block drives an ejection block to slide, and through the cooperative application of the ejection block and an ejection ball, the effect of automatically detecting the dullness is achieved.

Description

technical field [0001] The invention relates to the technical field of printing equipment, in particular to a protective device for a paper cutter that can automatically detect the jerk of a cutting knife. Background technique [0002] Printing equipment is a machine that processes and finishes printed sheets into printed products. A paper cutter is a type of printing equipment. A paper cutter is a device that cuts flat paper in the paper industry. It is divided into two types: swing knife cutter and flat knife cutter. The swing knife paper cutter includes a slitting mechanism composed of an upper knife and a lower knife, and a cross-cutting mechanism composed of a rotary long knife and a fixed bottom knife. [0003] The cutting knife is one of the most important parts in the paper cutter. The quality of the cutting knife directly affects the efficiency and quality of paper cutting. The existing paper cutter does not have the function of detecting the bluntness of the cutti...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a protective device for a paper cutter that can automatically detect the sharpness of the cutting knife. High, high detection accuracy and other advantages, it solves the problem that the existing paper cutter does not have the function of detecting the bluntness of the cutting knife, and it needs to be judged manually based on experience. Impurities and scraps of paper, if not cleaned in time, will affect the cutting quality

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