Manufacturing method of multi-color and multi-functional EVA sports and leisure sole

Abstract

The invention relates to the technical fields of shoes and particularly relates to a manufacturing method of a multi-color and multi-functional EVA sports and leisure sole. The method comprises the following steps of manufacturing first EVA particles and second EVA particles according to the formula separately; injecting the two EVA particles into a mold corresponding to an injection device for prefabricating and molding; cooling and opening the mold so as to obtain a pre-foamed sole base of a sole main body and a pre-foamed sole base of a functional part separately; putting the two sole bases into different positions in a foaming mold separately, and carrying out foam molding to obtain a crude foamed sole product; and carrying out mode hopping on the crude foamed sole product and then carrying out gradient cooling, setting by cooling and trimming to obtain the multi-color and multi-functional EVA sports and leisure sole. The manufacturing method is simple in process, low in production cost, high in production efficiency and low in defect rate; the prepared multi-color and multi-functional EVA sports and leisure sole has the advantages of being light, good in damping property, good in elasticity, good in wear resistance and good in slip resistance, and is convenient to wear; and the functional part does not easily fall off from the sole main body.

Description

technical field

[0001] The invention relates to the technical field of footwear, in particular to a method for making multi-color and multifunctional EVA sports and leisure soles. Background technique

[0002] With the development of society, people have increasingly diversified functional requirements for footwear, especially higher and higher performance requirements for soles. Sports and leisure footwear plays a very important role in people's daily life. In order to improve wearing comfort and meet different functional requirements, sports and leisure soles usually include sole main parts and functional parts of different colors and hardnesses. Functional parts or decorative pieces are provided in the missing parts, and the hardness ratio and color of the functional parts or decorative pieces are different from those of the main part of the sole. The molding method of traditional sports and leisure soles is usually to pre-form the main part of the sole, functional part...