Crusher for plastic processing

Abstract

The invention discloses a crusher for plastic processing. The crusher comprises a crushing box, a pre-crushing device and a main crushing device, the pre-crushing device and the main crushing device are mounted on the crushing box, the crushing box comprises a bearing plate, a discharging box, a crushing barrel and a grinding box sequentially arranged from bottom to top, integrating of the bearingplate, the discharging box, the crushing barrel and the grinding box is achieved, the pre-crushing device comprises two grinding rollers and two gears, the grinding rollers are mounted on the grinding box through a bearing, each gear is fixed to the corresponding grinding roller, the two gears are meshed with each other, the crushing roller of the main crushing device is rotatably connected to abarrel cover, and a plurality of arc cutting cutters are evenly distributed on the circumferential side of the crushing roller in the circumferential direction. According to the crusher, through arrangement of the pre-crushing device and the main crushing device, the efficient crushing process can be completed, and plastic particles with the fineness meeting the requirements can be obtained; and through arrangement of an air inlet pipe and an air outlet pipe, the heat generated in the crushing process can be brought out, the internal temperature of the crusher is reduced, and the service lifeof the equipment is prolonged.

Description

technical field [0001] The invention belongs to the technical field of plastic processing, and in particular relates to a crusher for plastic processing. Background technique [0002] The plastic crusher is mainly used to crush various waste plastics, such as plastic shaped materials, tubes, rods, films, etc. The raw materials obtained after being crushed by the crusher are directly used by extruders or injection molding machines after treatment. The crusher mainly cuts the plastic through the high-speed rotation of the crushing knife, and filters it through the sieve plate to screen out the raw materials with the required size. In the actual crushing process, the plastic will roll up and down in the working chamber of the crusher, and the tumbling plastic will be cut and broken by the high-speed rotating crushing knife. [0003] The Chinese patent No. CN200820185648.0 discloses a plastic crusher with a vibrating screen, including a plastic crusher, and a vibrating screen ...

AI Technical Summary

Problems solved by technology

This application can realize the crushing of plastics, but a large amount of heat will be generated during the crushing process, which cannot be released, not only easy to burn the plastic, but also damage the internal mechanism of the crusher.

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