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Screw for extruder, and extruder

A technology of extruder and screw, which is applied in applications, household components, household appliances, etc. It can solve the problems of material breaking, extrusion molding, and no material discharge, and achieve a good mixing effect

Pending Publication Date: 2018-03-02
SHENZHEN FUSAI ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Among the new energy vehicles, the technology of electric vehicles is the most mature. Nowadays, the country is vigorously building charging piles and other facilities. Among them, the electric vehicle charging gun and its connecting cables are indispensable. The cable body of the cable is different from the general line body and needs to meet high Softness and wear resistance. Most of the insulating materials are calcium-zinc soft alloys. Due to their special formula technology, the existing traditional screw extruders are mostly single-threaded, which cannot be well extruded and formed, and it is easy to cause material breakage. Or no material, so that the physical properties of the cable jacket cannot meet the requirements for the use of the charging gun cable

Method used

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  • Screw for extruder, and extruder
  • Screw for extruder, and extruder

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Embodiment Construction

[0014] The principle and structure of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0015] Such as figure 1 As shown, the present invention proposes a screw used for extruders. The threads on the surface of the screw 1 divide the screw into a stirring section 11 , a spacer section 12 and a backpressure section 13 arranged in sequence according to the direction of rotation of the screw grooves. The section near the end of the screw is a stirring section 11 with a positive single thread groove on the surface, wherein the screw compression ratio of the stirring section 11 is between 1:1.5 and 1:1.7; followed by the spacer section 12, the spacer section The thread groove is a reverse single thread groove, which makes the material being stirred and pressed slow down when it is conveyed. Finally, the reverse pressure section 13 of the opposite direction double thread groove with reverse thread groove and forward thread gr...

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Abstract

The invention discloses a screw for an extruder, and the extruder. The screw for the extruder is sequentially divided into a stirring-pressing section with a single forward thread groove, a spacing section with a single reverse thread groove or an annular groove, and a reverse pressing section with double forward-reverse thread grooves according to the different spiral directions of surface threads, wherein the thread groove in the tail end of the reverse pressing section communicates with the end surface of the screw. The screw for the extruder is good in extrusion effect, greatly applicableto extrusion forming for a soft material, and free from no discharge or breakage.

Description

technical field [0001] The invention relates to a screw used for an extruder and the extruder. Background technique [0002] Among the new energy vehicles, the technology of electric vehicles is the most mature. Nowadays, the country is vigorously building charging piles and other facilities. Among them, the electric vehicle charging gun and its connecting cables are indispensable. The cable body of the cable is different from the general line body and needs to meet high Softness and wear resistance. Most of the insulating materials are calcium-zinc soft alloys. Due to their special formula technology, the existing traditional screw extruders are mostly single-threaded, which cannot be well extruded and formed, and it is easy to cause material breakage. Or no material, so that the physical properties of the cable jacket cannot meet the requirements for the use of the charging gun cable. Contents of the invention [0003] In order to solve the above-mentioned technical pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/60B29L31/34
CPCB29C48/505B29C48/54B29C48/55B29L2031/3462
Inventor 库群星
Owner SHENZHEN FUSAI ENERGY TECH
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