Multi-rigidity sole die and sole

Abstract

The invention discloses a multi-rigidity sole and a sole die. The sole die comprises a sole body die and a core die, the upper surface of the core die is provided with a first toe joint protrusion which is arranged horizontally and a first inner vertical protrusion which is arranged vertically, and the sole is formed through lamination, clamping and foaming of the core die and the sole body die. Compared with the prior art, the multi-rigidity sole and the sole die have the advantages that the toe joint protrusion and the first inner vertical protrusion of the upper surface of the core die aredesigned according to human engineering, a foamed sole core accords with the structure characteristics of the feet of the human body, the wrapping performance of shoes can be improved, and the feet are better protected. In addition, the rigidity of the core is lower than that of a shoe body, and the wearing comfort and stability of supporting the feet are guaranteed.

Description

technical field [0001] The invention relates to the technical field of shoe sole production, in particular to a multi-hardness shoe sole embryo and shoe sole. Background technique [0002] In order to improve the texture and value of sports shoes, a kind of multi-hardness sole has appeared on the market, which is made by injection cold molding, foaming and other processes. [0003] (1) For the usual multi-hardness treatment, the corresponding part of the sole that is in contact with the sole of the foot (hereinafter collectively referred to as the inner kernel embryo) is generally selected to use relatively low hardness and good elasticity material rice, so that the molded inner kernel embryo part feels comfortable. However, regardless of ordinary soles or multi-hardness soles, the surface of the inner core embryo is designed with the same radian, and the structure of the forefoot is flat and slightly concave and the heel is slightly raised. This structure can only roughly c...

AI Technical Summary

Problems solved by technology

The arch of the foot is divided into a transverse arch and a longitudinal arch. The transverse arch is divided into the toe joint and the rear transverse arch, while the longitudinal arch is divided into the inner longitudinal and outer longitudinal. Due to the structure of the soles currently on the market, they only protect the direct contact with the soles. The contact toe joints (toe-metatarsal joint), posterior transverse (composed of cuneiform and cuboid) and outer longitudinal (calcaneus, cuboid and fourth and fifth metatarsals), and inner longitudinal (talus, scaphoid, wedge and first, second, Composed of three metatarsals) cannot get the corresponding fit package, which reduces the comfort while lacking cushioning and increasing the risk of movement

[0005] (3) When a person is in a state of exercise, especially during strenuous exercise or physical training, there is a hidden danger of toe joint sprain or contusion, and the current soles do not have a corresponding fitting wrapping structure at the toe joint, especially the bulge of the toe joint

[0006] (4) The sole manufacturing process of the current three-dimensional woven shoes follows the common foaming process of the sole. Insoles are provided to ensure comfort; people are prone to foot sweat during exercise or in humid and hot weather, and the soles of the shoes are prone to slipping inside the shoe body, increasing unsafe factors, while the contact surface between the three-dimensional woven sole and the sole At present, there is no anti-slip treatment, so that the shoe body must be anti-slip through the insole when it is formed.

In the development of shoes, it has become more and more lightweight, especially three-dimensional woven shoes have higher requirements for lightweight. The above-mentioned technology has not been improved due to the continuation of the general processing technology, and it cannot be separated from the insole in terms of comfort and anti-slip. , is bound to have an impact on the development of lightweight molding

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