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Air duct protecting plate extrusion device for soft and hard co-extrusion sealing

An air duct guard plate and soft-hard co-extrusion technology, which is applied in the field of air duct guard plate extrusion devices for soft-hard co-extrusion sealing, can solve the problems of affecting the service life of the product, high tear strength at the soft-hard joint, etc. Improved production efficiency, enhanced adhesion, and quality assurance

Active Publication Date: 2015-03-04
贵州省工程复合材料中心有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of soft and hard co-extrusion, the bonding degree of the joint between soft material and hard material seriously affects the service life of the product. Generally, HPVC and SPVC are co-extruded, and the tear strength of the soft and hard joint in the product structure is very large.

Method used

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  • Air duct protecting plate extrusion device for soft and hard co-extrusion sealing
  • Air duct protecting plate extrusion device for soft and hard co-extrusion sealing
  • Air duct protecting plate extrusion device for soft and hard co-extrusion sealing

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Embodiment Construction

[0015] Embodiment of the present invention: the structure of the air duct guard plate extrusion device for soft and hard co-extrusion sealing is as follows figure 1 As shown, the die head 1 is included, the first section of the functional part flow channel 1-1 is provided on the die head 1, the end of the die head 1 is connected with a transition plate 2, and the second section of functional parts is provided on the transition plate 2 The flow channel 1-2 is provided with a mouth template 3 at the end of the transition plate 2, and the structural part flow channel 5 and the third functional part flow channel 1-3 are arranged on the mouth template 3, and the functional part flow channels of each section are connected in sequence , the lateral structural member flow channel 3-1 communicates with the forward structural member flow channel 3-2, and the third functional part flow channel 1-3 and the structural member flow channel 5 are located 10-12mm in front of the outlet end of t...

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Abstract

The invention discloses an air duct protecting plate extrusion device for soft and hard co-extrusion sealing. According to the air duct protecting plate extrusion device, respective flow channels of a soft material and a hard material are arranged on the feed end of an opening mould and in a separated state; and melts flow in the respective flow channels of the opening mould and finally are converged to be formed at a certain distance in front of the opening mould and extruded out of the opening mould together. The air duct protecting plate extrusion device disclosed by the invention can realize the purpose that the soft material and the hard material realize the combination in an unformed process and are synchronously formed finally, thereby achieving the one-step forming; the air duct protecting plate extrusion device disclosed by the invention can be used for improving the combined adhesive power between plastics, enhancing the adhesive property, easily regulating the distribution of integral thickness of a product in processing and improving the production efficiency by converging the melts in a co-extrusion mould, and through detailed research on the dimension parameter of the flow channels, an optimal scheme is obtained and the extrusion quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of medium and high polymer materials, in particular to a soft and hard co-extruded air duct guard plate extrusion device for sealing. Background technique [0002] The proportion of raw materials, extrusion die, cooling and shaping, and pulling speed are the four main factors in the process of soft and hard co-extrusion of the air duct guard plate, which have a decisive impact on the appearance size and quality of the product. Plastic co-extrusion technology is an emerging plastic profile molding technology this year, widely used in construction industry (such as door and window profile, plastic furniture and indoor and outdoor decoration profile), automobile industry (such as automotive plastic profile accessories), packaging industry, etc. in the field. With the continuous development of co-extrusion technology at home and abroad, as well as the improvement of extrusion equipment, extrusion mold optimizat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/06B29C47/12B29C47/86B29C48/30
CPCB29C48/30B29C48/304B29L2031/7622
Inventor 陈兴江杨青
Owner 贵州省工程复合材料中心有限公司
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