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Die for thermoplastic polyurethane elastomer compression molding

A thermoplastic polyurethane molding technology, applied in the direction of coating, etc., can solve the problems of difficult demoulding, cracking of parting line, etc., and achieve the effect of smooth surface, uniform thickness and easy demoulding

Inactive Publication Date: 2019-05-03
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to solve the technical problems of product demoulding difficulty and parting line cracking, and to provide a molding die with easy demoulding and suitable for compression molding of thermoplastic elastomer materials

Method used

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  • Die for thermoplastic polyurethane elastomer compression molding
  • Die for thermoplastic polyurethane elastomer compression molding
  • Die for thermoplastic polyurethane elastomer compression molding

Examples

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Embodiment Construction

[0023] Further details will be given below in conjunction with the accompanying drawings and embodiments.

[0024] A thermoplastic elastomer molding die, such as Image 6 As shown, including: upper mold 1, mold core 2, lower mold 3;

[0025] Such as figure 2 As shown, the mold core 2 includes a forming main structure, a rectangular positioning block 13, and a handle 12; one end of the forming main structure is connected to the handle 12, and a rectangular positioning block 13 is arranged near the end surface;

[0026] Such as figure 1 As shown, the upper mold 1 includes a first cavity 9, a positioning groove 5, and a positioning column 4; the lower surface of the upper mold 1 is provided with a first cavity 9, and several positioning columns 4 are distributed around the first cavity 9, and the first cavity 9 Positioning groove 5 is set near the port;

[0027] Such as image 3 As shown, the lower mold 3 includes a second cavity 10, a positioning groove 5, a positioning ho...

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PUM

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Abstract

The invention provides a die for thermoplastic polyurethane elastomer compression molding. The die comprises an upper die body (1), a die core (2), and a lower die body (3), wherein the die core (2) comprises a molding body structure, a rectangle positioning block (13) and a handle (12); the upper die body (1) comprises a first molding cavity (9), a positioning groove (5), and positioning post (4); the lower die body (3) comprises a second molding cavity (10), a positioning groove (5), a positioning hole (6), a sealing groove (7), a sealing joint strip (8) and a positioning clip (14); and whenthe upper die body (1) and the lower die body (3) complete molding closing, the inner surfaces of the first molding cavity (9) and the second molding cavity (10) are in consistence with the outline of the molding body structure, and the positioning grooves (5) of the upper die body (1) and the lower die body (3) are in consistence with the outline of the rectangle positioning block (13). The technical problems of difficulty in demolding and cracking of the mold closing line are solved by means of the die for thermoplastic polyurethane elastomer compression molding; and stripping is easy, andthe die for thermoplastic polyurethane elastomer compression molding is suitable for compression molding of thermoplastic elastomer material.

Description

technical field [0001] The invention relates to the technical field of molding dies for rubber and elastic body materials, in particular to a molding die. Background technique [0002] Thermoplastic polyurethane is an elastomeric material between rubber and plastic. Due to its excellent tensile properties, wear resistance, flex resistance, low temperature resistance and oil resistance, it is widely used in the automotive industry, various shoe materials and clothing industries, and aerospace fields. [0003] At present, thermoplastic polyurethane products are mostly produced by injection, rotational molding, dipping and other processes. However, for products with thin-walled curved surfaces, the common processes have problems such as uneven size and many bubbles. It is necessary to use hot-press molding technology for reference from rubber products. However, due to the technical characteristics of thermoplastic polyurethane, traditional molds have problems such as difficult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C43/36B29C33/56B29K75/00
Inventor 陈兵勇李杰刘军杨凤茹赵志祥王炜宋丹隋奇王凡李彦荣
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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