A rotary knife pelletizer

Abstract

The invention discloses a rotary cutter type granulator which comprises a pipe feed limiting mechanism, a pipe pressing traction mechanism, an eagle mouth cutting mechanism, a safety cover, a supporting plate rack and an electrical control box, wherein the pipe feed limiting mechanism and the eagle mouth cutting mechanism form an upstream and downstream close docking relationship of the flow direction of the cut pipelines; an upper roller and a lower roller of the pipe pressing traction mechanism are positioned on the middle section of an end-to-end connecting line of the pipe feed limiting mechanism, are perpendicular to the flow direction of the cut pipelines and perform docking clamping and rotating traction on to-be-cut pipeline materials from the pipe feed limiting mechanism; and the pipe feed limiting mechanism, the pipe pressing traction mechanism, the eagle mouth cutting mechanism and the safety cover are integrated on the supporting plate rack, and the eagle mouth cutting mechanism is covered by the safety cover.

Description

technical field [0001] The invention belongs to crushing or pelletizing equipment for pipeline materials, in particular to plastic "waste pipe" pelletizing recovery equipment for radiation cross-linked heat-shrinkable tube manufacturing. Background technique [0002] In the pipeline material extrusion industry, especially in the ultra-thin tube extrusion site of the radiation cross-linked heat shrinkable tube manufacturing industry, most of the products are extruded and printed in the same process, because the wall thickness of the extruded tube is often in the Below 0.18mm, thinner than a piece of paper, it is very difficult to produce, and often encounter unqualified "waste pipes" due to uneven wall thickness, poor printing, and replacement of production and test machines. In fact, the so-called unqualified is limited to extrusion However, the physical, chemical and electrical properties of the material itself are still qualified. The traditional way to deal with and recy...

AI Technical Summary

Problems solved by technology

[0002] In the pipeline material extrusion industry, especially in the ultra-thin tube extrusion site of the radiation cross-linked heat shrinkable tube manufacturing industry, most of the products are extruded and printed in the same process, because the wall thickness of the extruded tube is often in the Below 0.18mm, thinner than a piece of paper, it is very difficult to produce, and often encounter unqualified "waste pipes" due to uneven wall thickness, poor printing, and replacement of production and test machines. In fact, the so-called unqualified is limited to extrusion The size of the outlet pipe, but the physical, chemical and electrical properties of the material itself are still qualified

The traditional way to deal with and recycle "waste tubes" is to send them to the masterbatch factory to be crushed with an alligator machine, remelted and granulated. Because the ultra-thin tube has the softness and elasticity of rubber, crushing it with an alligator machine is really a sledgehammer. But the efficiency is low, not only the cost of crushing is high, but also it is easy to generate heat during crushing, causing serious oxidation and deterioration of materials, and it is also easy to cause cross-contamination between different materials during transportation, so it has to be downgraded for use or scrapped.

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