Diverter for automobile sealing strip extrusion head

A technology of automobile sealing strip and extruder head, which is applied in the field of rubber extrusion equipment to achieve the effect of simple structure and convenient use.

Inactive Publication Date: 2014-08-06
TAICANG RONGNAN SEAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on the shunt that can overcome the retention of rubber and burnt

Method used

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  • Diverter for automobile sealing strip extrusion head
  • Diverter for automobile sealing strip extrusion head
  • Diverter for automobile sealing strip extrusion head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Please refer to figure 2 , figure 2 It is a structural schematic diagram of a diverter at the extrusion head of an automobile weather strip according to the present invention. The diverter is provided with a diverter body 20 , a groove 21 and a triangular protrusion 22 .

[0030] The shunt body 20 is cylindrical, and its two ends are provided with chamfers 32 (see image 3 ); the triangular protrusion 22 is located on the surface of the flow divider; the groove 21 includes a main flow channel group 30 that is bifurcated by two flow channels (see image 3 ) and the secondary runner group 31 which is divided into forked by the other two runners (see image 3 ), the sprue group 30 (see image 3 ) with secondary runner group 31 (see image 3 ) is Unicom.

[0031] Please refer to image 3 , image 3 It is a front view and a flow state diagram of a diverter at the extrusion head of an automobile sealing strip according to the present invention.

[0032] The main ch...

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PUM

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Abstract

The invention relates to a diverter for an automobile sealing strip extrusion head. The diverter is provided with a diverter main body, a triangular protrusion and a groove, wherein the diverter body is cylindrical; chamfers are respectively arranged at two ends of the diverter body; the triangular protrusion is positioned on the surface of the diverter; the groove comprises a main rubber group consisting two branched runners and a secondary runner group consisting of another two branched runners; the main runner group is communicated with the secondary runner group. The diverter has the advantages that the possibility that a sizing material is retained and burnt down is reduced; when an extrusion pressure is increased, the phenomenon that a mouth die is blocked by the clinker due to the fact that the sizing material clinker punches out of the mouth die is avoided.

Description

technical field [0001] The invention relates to the technical field of rubber extruding equipment, in particular, it relates to a diverter at the extrusion head of an automobile sealing strip. Background technique [0002] At present, all kinds of EPDM rubber products can be extruded through rubber extrusion equipment such as extrusion heads. The process is: first, the plastic is heated to make it in a viscous flow state, and then enters a die body with a certain shape through a flow divider. It becomes a continuum with a similar cross-sectional shape, and then through cooling, the plastic viscous fluid with a certain geometric shape and size becomes a high-elastic state, and finally cooled and shaped into a glass state to obtain the desired product. [0003] In the prior art, about the shunt of the automobile extruder head, such as figure 1 As shown, including the diverter body 10, there is a fluid channel 11 in the middle of the diverter body 10. Due to the uneven pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/70
CPCB29C48/705
Inventor 金涛姚刚纪荣华倪耀国
Owner TAICANG RONGNAN SEAL TECH
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