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Torpedo head for extruder

A torpedo head and extruder technology, applied in the field of extruders, can solve problems such as small mixing effect

Active Publication Date: 2021-08-27
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practice, such plates have very little mixing effect on the material to be extruded

Method used

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  • Torpedo head for extruder
  • Torpedo head for extruder
  • Torpedo head for extruder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] figure 1 Partially shown is an extruder 1 comprising a longitudinal jacket 2 having a channel 3 with a longitudinal axis, for example cylindrical, and extending in downstream direction. A rotating longitudinal assembly 4 is mounted in this longitudinal channel 3 for driving the material to be extruded in a downstream direction.

[0030] The extruder 1 comprises a geared motor (not shown) upstream for driving the rotating longitudinal assembly 4, an extrusion die (not shown) downstream of the torpedo head 6 and for introducing the material to be extruded into the Mechanisms in the longitudinal channel 3 (not shown).

[0031] The rotating longitudinal assembly 4 comprises an upstream longitudinal screw 5 and a downstream longitudinal torpedo 6, the upstream end of which is mounted on the downstream end of the screw 5 by means of fixing means (not shown). The screw 5 extends in the upstream part 3 a of the longitudinal channel 3 , while the torpedo 6 extends in the downs...

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PUM

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Abstract

A torpedo for an extruder, comprising: a longitudinal body (9) provided on its outer periphery with a plurality of threaded portions (12) protruding outward and spaced apart in the circumferential direction , a plurality of gate blades (19) mounted to be movable on said longitudinal body and partially engaged in openings (18) of said longitudinal body, said longitudinal body (9) and said gate blades (19 ) is provided with mutually contacting complementary radial guide surfaces (13, 14, 18), and an adjustment mechanism (28) for radially moving said gate blade relative to said longitudinal body. The gate blades pass through spaces between the threaded portions, respectively. Said threaded portion (12) and said gate blade (19) are provided with complementary radial guide surfaces (13, 14, 18).

Description

technical field [0001] The invention relates to the field of extruders, in particular extruders for the production of profiles through dies. Background technique [0002] Typically, extruders for extruding plastic or rubber materials comprise a longitudinal sheath in which is arranged a longitudinal screw capable of being driven in rotation so that the material to be extruded is directed in the direction of the extrusion die Moving in the downstream direction, the channels of the extrusion die determine the cross-section of the profile obtained. [0003] In particular, in the field of extruding rubber compounds in the form of profiles, which can subsequently be used for the production of tyres, the extrusion screw is provided at its downstream end on the side of the die with a head (commonly called a torpedo head), Its periphery has threads that advance the material and cause mixing or agitation of the rubber compound (called processing). [0004] Currently, for each rubbe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C48/505B29C48/67B29C48/70B29B7/40B29C48/565
CPCB29C48/25682B29C48/507B29C48/266B29C48/565B29C48/67B29B7/421B29C2948/92885B29B7/408
Inventor C·贝萨克M·鲁比G·博诺姆
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN