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Screw-type extruder

A technology of extruder and screw type, which is applied in applications, household appliances, flat products, etc., and can solve problems such as difficult forming

Active Publication Date: 2018-12-21
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rubber (kneaded product) compounded with silica in a high proportion has the problem that it is difficult to form into a sheet in an extrusion molding machine

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0032] Hereinafter, modes for implementing the present invention will be described with reference to the drawings. The screw extruder shown in the following embodiments is a screw extruder with a roll die (hereinafter referred to as "extruder with a roll die") that extrudes a kneaded product of a polymer material such as rubber into a sheet. Exit"). It should be noted that the screw extruder of the present invention can also be used to extrude the kneaded polymer material from a die with many circular holes and then cut into cylindrical particles, which is called granulation. machine machinery.

[0033] (Structure of extruder with roll die)

[0034] refer to Figure 1~3 , the extruder 1 with a roll die according to one embodiment of the present invention will be described. The extruder 1 with a roll die has two screws (first screw 2 and second screw 3 ) for extruding a kneaded product, and a chamber 4 for accommodating the screws 2 and 3 . A pair of upper and lower roller...

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PUM

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Abstract

An extruder provided with a roller die, as an example of a screw-type extruder, is equipped with a screw provided with a spiral flight on the outer circumferential surface of a shaft portion, and a chamber for housing the screw. A rib is provided as a flight thickened portion that is the tip of the flight on the rear side in the rotational direction of the flight.

Description

technical field [0001] The present invention relates to a screw extruder for extruding a kneaded product. Background technique [0002] In the manufacturing process of automobile tires, an extrusion molding machine is used. The extrusion molding machine is installed under the rubber kneader that is the raw material of the tire, and continuously extrudes the rubber fed from the kneader (kneading machine). object) while forming the extruded rubber into a sheet. Regarding the technique of such an extrusion molding machine, there is, for example, the technique described in Patent Document 1 below. The technology described in Patent Document 1 is related to the screw constituting the above-mentioned extrusion molding machine. A flow path for circulating a medium such as water is provided inside the core and flight of the screw, and the entire screw including the flight is uniformly controlled by allowing the above-mentioned medium after temperature adjustment to flow in the flo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/60B29B7/42B29B7/48B29C47/38B29C47/80B29C48/395B29C48/35B29C48/385B29C48/525B29C48/59B29C48/60B29C48/80
CPCB29B7/489B29B7/7495B29C48/395B29C48/60B29C48/525B29C48/385B29C48/59B29C48/35B29K2021/006B29B7/488B29B7/484B29B7/52B29C48/80B29C48/505B29B7/42B29B7/48B29B7/424B29L2007/002
Inventor 福谷和久东孝祐
Owner KOBE STEEL LTD
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