A filter device without dismantling for an extruder

Abstract

The invention relates to a disassembly-free filter device for an extruder, which effectively solves the problem of wasting materials and impurity cannot be removed in time when the filter screen is backwashed and cleaned; the technical solution is to include a vertical box body, and there are two There are two feed ports on the rear side of the box; a T-shaped plate that can move up and down is installed in the middle of the box; fixed blocks fixed on the inner wall of the box are symmetrically arranged on the upper and lower sides of the partition ; There are two symmetrical filter screens installed in the box, and the two filter screens are located on the upper and lower sides of the T-shaped plate; a square sleeve is installed on the outside of each filter screen, and the square sleeve can be drawn to the left; the box A receiving box corresponding to each square sleeve is fixed on the left side of the body; two movable plates arranged symmetrically up and down are installed inside the box body, and the movable plate can move up and down and return to the middle of the box body. The present invention can visually see the clogged state of the filter screen, can utilize the internal pressure to realize the recoil of the filter screen, and save materials.

Description

technical field [0001] The invention relates to the field of extruder filtration, in particular to a disassembly-free filtration device for an extruder. Background technique [0002] The extruder is the main molding equipment for making thermoplastics or plastic products of various shapes by using plastic molding dies. The material first melts in the filter device into a liquid state and enters the extruder through the filter plate; the plastic will melt after melting. Particulate impurities are produced which, if not filtered, can cause local defects in the product. Therefore, the extruder is generally equipped with a filter screen. After a period of use, the filter on the extruder is prone to clogging. [0003] At present, the main solution to blockage is to use a screen changer to replace the filter screen. The traditional screen changer generally uses double filter screens to replace it. After the clogged filter screen is taken out, there will generally be more impurit...

AI Technical Summary

Problems solved by technology

[0005] In view of the above situation, in order to solve the problems existing in the prior art, the purpose of the present invention is to provide a filter device without dismantling of the extruder, which can effectively solve the problems of waste of materials during backwash cleaning of the filter screen, and impurity cannot be removed in time.

Images