Shoe sole capable of being integrally formed without trimming or roughing and manufacturing technology thereof

Abstract

The invention relates to a shoe sole, and provides a shoe sole capable of being integrally formed without trimming or roughing and a manufacturing technology thereof. The shoe sole capable of being integrally formed without trimming or roughing is simple in structure, the manufacturing process is simple as it is unnecessary to carry out trimming or polishing in the making process, a vulcanized rubber sheet and an EVA insole are firmly glued, and the shoe sole is high in quality and suitable for large-batch production, manufacturing and use. The shoe sole capable of being integrally formed without trimming or roughing comprises the EVA insole, a dielectric film layer and the vulcanized rubber sheet. The dielectric film layer comprises a PET surface layer and a cloth layer attached to the PET surface layer, and the PET surface layer and the cloth layer can be separated from each other. The vulcanized rubber sheet is formed by integrally vulcanizing an unvulcanized rubber sheet and the dielectric film layer in a rubber mold, and the vulcanized rubber sheet and the dielectric film layer are integrally formed. The vulcanized rubber sheet is glued to the EVA insole through the cloth layer of the dielectric film layer.

Description

technical field [0001] The invention relates to a shoe sole, in particular to a shoe sole that can be integrally formed without trimming and roughening and a manufacturing process thereof. Background technique [0002] Shoes are indispensable daily necessities in people's daily life, and sole is an important part of shoes. The sole in the prior art generally comprises big bottom and midsole, and the big bottom of shoes generally adopts the better rubber material of abrasion resistance, and in order to increase the elasticity and comfort of shoes, the midsole of shoes generally adopts softer EVA material, Because the materials of the outsole and the midsole are different, the traditional process of making the sole is generally to first foam the EVA midsole and make a rubber outsole at the same time, and then manually bond the midsole and the outsole with glue, among which When bonding, the rubber outsole needs to be trimmed and polished first. Through grinding, the friction ...

AI Technical Summary

Problems solved by technology

The sole in the prior art generally comprises big bottom and midsole, and the big bottom of shoes generally adopts the better rubber material of abrasion resistance, and in order to increase the elasticity and comfort of shoes, the midsole of shoes generally adopts softer EVA material, Because the materials of the outsole and the midsole are different, the traditional process of making the sole is generally to first foam the EVA midsole and make a rubber outsole at the same time, and then manually bond the midsole and the outsole with glue, among which When bonding, the rubber outsole needs to be trimmed and polished first. Through grinding, the friction coefficient of the glued surface of the rubber outsole can be improved, the glued surface area can be increased, and the internal structure of the surface of the vulcanized rubber outsole can be leaked. The bonding force between the glue and the surface structure molecules of the rubber outsole is improved, and the bonding firmness between the rubber outsole and the EVA midsole is high, otherwise the surface of the unpolished rubber outsole is smooth, the glue is easy to slide, not easy to condense, and the liquid state of the glue Fluidity makes the rubber outsole and EVA midsole easy to shift when glued together, and the surface of the rubber outsole is not easy to combine with glue molecules, the glue force is low, the rubber outsole and the EVA midsole are easy to peel off, and the quality of the sole decreases, which can be seen Trimming and polishing the rubber outsole is an indispensable manufacturing process for the rubber outsole and EVA midsole to be glued together. It is done manually, the labor intensity is high, time-consuming and labor-intensive, and the production efficiency is low. A large number of manual operations can easily cause quality problems such as misalignment of the edges of the outsole and midsole or glue opening. The practicability is low, and it is not suitable for mass production and use.

Images