Method for producing shoes with reduced time of hot compacting

Abstract

The invention relates to a shoes making process for shortening heat pressing moulding time, wherein a shoe unit is divided into a filling inner sole and a primary sole blank, the filling insole is covered in the primary sole blank made of thermoplastic materials, after the primary sole blank is heated, it is placed into a forming die along with a shoe upper assembly, whereby the plastic formable capability of the primary sole blank is utilized to solidify the shoe upper assembly and obtaining the final shoes.

Description

【Technical field】 [0001] The invention relates to a manufacturing method of shoes, especially suitable for recycling waste materials and shoes with high and thick soles, so as to shorten the hot pressing time of molds and shorten the hot pressing molding time. 【Background technique】 [0002] In the past, soles with simple and simple shapes were easier to mold and foam in EVA (ethylene-vinyl acetate copolymer), but today, with the diversification of shoe body shapes in 3D, the foam molding technology of shoe soles has become more difficult Therefore, at present, the shoe-making industry often divides the sole into two parts, the midsole and the outsole, and each part is produced separately, and then chemically glued separately, so the manufacturing process is more troublesome, and the shoe body components are prone to peeling off. [0003] Such as figure 1 As shown, it is the invention patent of "Manufacturing Method of Foamed Shoe Body" (Taiwan Patent Publication No. 485032...

AI Technical Summary

Problems solved by technology

[0005] 1. Long molding time: For some thick-soled or high-heel shoe bodies, the time for the preform 1 to be heated outside the mold must be prolonged. Relatively, the preform 1 will have a shrinkage rate that is difficult The problem of control causes the disadvantage of inaccurate size after pressing, especially for shoes with high thick soles and high heels.

In addition, the applicant also tried to mold the entire sole by directly using the hot pressing of the mold. However, only using the heating of the mold to heat the entire outsole to a softened plastic state, the thermoplastic molding time is quite long and not Economical, if the hot pressing time is insufficient, the texture of the pressed sole (heel) will be blurred and inconspicuous

[0006] 2. It is not suitable to use recycled waste: because the shoe midsole embryo 1 must undergo hot-press molding operations, therefore, the sole embryo can only be made of plastic new materials, and recycled waste materials are not suitable.

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