A forced feeding mechanism and a forced feeding method of a plastic crusher

Abstract

The invention discloses a forced feeding mechanism of a plastic crushing machine and a forced feeding method. The forced feeding mechanism comprises a material feeding hopper and a material shifting mechanism, wherein the material shifting mechanism comprises a material shifting rotor and a driving mechanism for driving the material shifting rotor to rotate; the material shifting rotor is arranged in the material feeding hopper and is positioned above a movable cutter; the cross section of the material shifting rotor is non-equant and consists of a far-end part, a near-end part and a transitional part for connecting the far-end part with the near-end part; a space between the material shifting rotor and the movable cutter forms a front crushing chamber for conveying plastic to be crushed; a space among the movable cutter, two fixed cutters and a screen forms a crushing cavity. The forced feeding mechanism disclosed by the invention has the advantages of high generality, high conveying efficiency, simple structure and the like.

Description

technical field [0001] The invention relates to a plastic crusher and a processing method, in particular to a forced feeding mechanism and a forced feeding method of the plastic crusher. Background technique [0002] The working principle of the common plastic crusher is: the rotating moving knife driven by the central shaft (the crushing knife is composed of a moving knife and two fixed knives, and there is a screen under the crushing knife), which is fixed and balanced with the blade of the moving knife. There is a relative movement between the fixed knives with a certain gap, and the plastic bitten by the moving knife is cut at the intersection of the moving knife and the first fixed knife, and the plastic cut by the first moving knife enters the In the crushing cavity, through the repeated shearing of the subsequent moving blade and the second fixed knife, the whole crushing process ends after the fragments pass through the screen. Due to the different shapes of plastic...

AI Technical Summary

Problems solved by technology

[0004] 1. The size of the conveying channel of the plastic to be crushed is fixed, and it can only convey a certain volume of plastic to be crushed. For different sizes of plastic to be crushed, it is necessary to use a conveying screw with different conveying channels, which has poor versatility

[0005] 2. The plastic to be crushed needs to flow along the spiral conveying channel of the plastic to be crushed during the conveying process, the conveying path is long, the conveying speed is slow, and the efficiency is low

[0006] 3. It often happens that individual plastics to be crushed get stuck on the spiral blades and cannot be fed, especially for crushed and recycled plastic products; when troubleshooting, it is necessary to stop the machine, and it is dangerous to operate

[0007] 4. The structure of the conveying screw is complex, the processing cost is high, and the equipment is bulky

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