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Production of middle soles of shoes

A production method and an integrated technology, applied to footwear, other household appliances, household appliances, etc., can solve the problems of cost increase, market competitiveness decline, and expensive EVA

Inactive Publication Date: 2010-04-07
林鸿祺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the price of PU is more expensive than EVA, and the direct use of PU material will greatly increase the cost of the product and reduce its market competitiveness.

Method used

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  • Production of middle soles of shoes
  • Production of middle soles of shoes
  • Production of middle soles of shoes

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Embodiment Construction

[0011] The present invention is a manufacturing method, figure 1 , 2 It is an illustration of the product made by the present invention, the midsole of the shoe involved is composed of two parts, the middle part 1 and the outer edge 2, wherein the middle part 1 can be made of EVA foam material, and the outer edge 2 is made of hardened PU foam material. The outer edge 2 is located on the periphery of the middle part, and is integrally connected with the middle part 1 by means of injection molding. In addition, a receiving portion 21 protrudes upwards from the edge portion of the outer edge 2 , and the receiving portion 21 is injection molded integrally with the outer edge 2 , and transitions to the upper surface of the outer edge 2 in a smooth curve.

[0012] The method adopted in the present invention is: firstly, the middle part 1 is made, which is made by foaming the cut and shaped EVA material. For the specific foaming process, please refer to the references in the backgr...

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PUM

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Abstract

A method for making the insole of shoe includes such steps as preparing central material through cutting the EVA material for shaping and foaming, putting it in the center of mould cavity, injecting the PU material in the mould cavity form the peripheral part, and demoulding. Its advantages are high performance and low cost.

Description

Technical field: [0001] The invention relates to the technical field of manufacturing methods of footwear products, in particular to a manufacturing method of midsoles of shoes. Background technique: [0002] The sole of a general sports shoe consists of two parts: the midsole (also called the middle fork) in the middle layer and the outsole in the bottom layer. The outsole at the bottom usually adopts more wear-resistant rubber material, and the middle layer mostly adopts EVA (commonly known as rubber rubber, its chemical name is ethylene-vinyl acetate, English name Ethylene-Vinyl Acetate,) foam material. This is because the EVA foam material is a polyethylene foam product with a chemical structure containing numerous closed cells, and it is a random polymer compound. In its molecular structure, the substituents are on the molecular chain of the central axis. The arrangement of carbon atoms is irregular, and the configuration of asymmetric carbon atoms in the molecular cha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D31/515B29D35/12
Inventor 林鸿祺
Owner 林鸿祺