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Plastic extruder head

A technology of a plastic extruder and a die, applied in the field of plastic extruders, can solve the problem of inability to effectively filter, and achieve the effects of stable flow rate, enhanced filtering effect, and good quality.

Inactive Publication Date: 2013-01-09
刘峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiment of the present invention is to provide a plastic extruder head, aiming to solve the problem that the plastic extruder provided by the prior art cannot effectively filter when producing waste thermoplastics

Method used

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  • Plastic extruder head
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Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0015] The head of the plastic extruder provided by the embodiment of the present invention includes a head gland, an end plate, a machine barrel and a filter core tube. The core tube is fixedly installed on the end plate, and the machine head gland is screwed to the end of the machine barrel. The outer surface of the filter core tube is covered with at least two layers of filter nets, and the filtering accuracy of the inner filter net is higher than that of the outer filter The filter fineness of the filter.

[0016] like figure 1 and figure 2 Commonly shown, the head of the plastic extruder i...

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Abstract

The invention belongs to the technical field of plastic extruders, and provides a plastic extruder head which comprises a head gland, an end plate, a barrel and a plurality of filter element tubes. The end plate is connected to an outlet of the barrel, the filter element tubes are arranged in the barrel and are fixedly mounted on the end plate, the head gland is connected to an end of the barrel in a threaded manner, at least two filter screens cover the outer surface of each filter element tube, and the filter precision of the filter screen on an inner layer of each filter element tube is higher than that of the filter screen on an outer layer of the filter element tube. The plastic extruder head in an embodiment of the invention has the advantages that as the filter screens cover the outer surface of each filter element tube, large impurities in plastic melt remain outside the filter screens, and blockage can be avoided when the plastic melt which is primarily filtered by the filter screens flows via through holes on the filter element tubes.

Description

technical field [0001] The invention belongs to the technical field of plastic extruders, in particular to a head of a plastic extruder. Background technique [0002] After waste thermoplastics are recycled, they need to be reprocessed. Although the thermoplastic is cleaned during this process, there are still impurities in it, which will cause the head of the extruder to be blocked during the extrusion molding process; and the flow rate of the plastic melt is unstable during the extrusion process, causing The plastic quality after extrusion is not high. [0003] At present, most of the various replaceable screen heads used are to fix the porous plate (or filter tube) with the machine head. Due to the small filtration area of ​​the porous plate, it is easy to cause blockage during filtration, which will eventually affect the filtration effect. Contents of the invention [0004] The purpose of the embodiments of the present invention is to provide a plastic extruder head,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/68B29C47/70B29C48/40
CPCB29C48/40
Inventor 刘峰钟庆国
Owner 刘峰
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