CN111713802A

CN111713802A - Sole manufacturing method and shoe

Info

Publication number: CN111713802A
Application number: CN202010134793.1A
Authority: CN
Inventors: 陆一平
Original assignee: Qingyuan Global Technology Services Ltd
Current assignee: Qingyuan Global Technology Services Ltd
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2020-09-29

Abstract

The invention relates to a sole manufacturing method, a sole and a sports shoe, wherein the method comprises the following steps: preparing a foaming body according to the manufacturing requirement, wherein the material of the foaming body comprises any one of thermoplastic polyurethane, thermoplastic polyester, polyether block polyamide, polystyrene, polypropylene and ethylene-vinyl acetate; arranging the conductive yarn in a foaming body with a preset shape; the foaming body sandwiched with the conductive yarn is arranged in an electromagnetic wave environment for foaming treatment to prepare the sole, wherein the conductive yarn generates induction voltage when being excited by electromagnetic waves and generates current to generate heat so as to trigger the surface of the foaming body to expand. This application embodiment can not need the mould when the preparation sole, reduces the manufacturing cost of sole, and then reduces the manufacturing cost of shoes.

Description

Sole manufacturing method and shoe

Technical Field

The invention relates to the technical field of sole manufacturing, in particular to a sole manufacturing method and shoes.

Background

Shoes are generally constructed with a sole and an upper, and the sole may be designed with different characteristics, such as adding a wear layer to increase service life, adding a cushioning layer to improve comfort, and so forth.

In the existing manufacturing process, a mold is generally adopted to manufacture the sole, so that patterns or grooves and the like are presented, and the anti-skid function of the sole is increased. The style of shoes is different day by day, and every time a mould is opened, a large amount of financial resources and manpower are wasted, so a mould-free sole manufacturing method needs to be designed urgently to reduce the production cost of soles and further reduce the production cost of shoes.

Disclosure of Invention

In order to overcome the defects, the application provides the sole manufacturing method and the shoe, the sole can be directly manufactured without a mold, the production cost of the sole is reduced, and the production cost of the shoe is further reduced.

In a first aspect, an embodiment of the present invention provides a method for manufacturing a sole, where the method includes:

preparing a foaming body according to the preparation requirement, wherein the material of the foaming body comprises any one of thermoplastic polyurethane, thermoplastic polyester, polyether block polyamide, polystyrene, polypropylene and ethylene-vinyl acetate;

arranging the conductive yarn in a foaming body with a preset shape;

and arranging the foaming body clamped with the conductive yarn in an electromagnetic wave environment for foaming treatment to prepare the sole, wherein the conductive yarn generates induction voltage when being excited by electromagnetic waves, generates current to generate heat, and triggers the surface of the foaming body to expand.

In combination with the first aspect, in one possible embodiment, the conductive yarn includes a plurality of mesh structures formed by weaving stainless steel fibers.

With reference to the first aspect, in one possible embodiment, the foamed body includes a first foamed body and a second foamed body, and the step of disposing the conductive yarn in the foamed body having the predetermined shape includes:

and enabling the first foaming body to penetrate through the grid structure of the conductive yarn and be bonded with the second foaming body through an up-and-down hot pressing mode.

With reference to the first aspect, in one possible implementation, the step of disposing the conductive yarn in the foamed body of the preset shape includes:

and preheating and softening the foaming body, then injecting and coating the foaming body on the outer side of the conductive yarn.

In a possible embodiment in combination with the first aspect, the stainless steel fibers have a thickness specification of 150D.

In one possible embodiment in combination with the first aspect, the material of the foam is ethylene vinyl acetate.

With reference to the first aspect, in one possible implementation, the surface of the conductive yarn is coated with a graphene material layer.

In a possible embodiment in combination with the first aspect, the thickness of the foam is controlled to be 2.5 to 3.5 cm.

In a second aspect, an embodiment of the present invention provides a sole, the sole is manufactured according to the above sole manufacturing method, the sole includes a foam body and a conductive yarn, a surface of the foam body has a convex structure, and the conductive yarn is disposed in the foam body.

In a third aspect, the sports shoe provided by the embodiment of the invention comprises the sole and the upper, which are manufactured according to the sole manufacturing method.

In this scheme, set up electrically conductive yarn in the foaming body, utilize the performance that electrically conductive yarn generates heat in the electromagnetic wave environment, the foaming body inflation is triggered in the heating, directly forms the sole that the surface has protruding column structure, does not need the mould, reduces the manufacturing cost of sole, and then reduces the manufacturing cost of shoes.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic flow chart of a sole manufacturing method according to an embodiment of the present application;

FIG. 2 is a side cross-sectional view of a sole made according to an example of the present application after a foaming process;

FIG. 3 is a schematic cross-sectional view of a sole made according to an embodiment of the present application;

FIG. 4 is a side cross-sectional view of a sole made in accordance with an example of the present application, prior to an unfoamed treatment.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.

It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Fig. 1 is a schematic flow chart of a sole manufacturing method provided in an embodiment of the present application, and as shown in fig. 1, the method includes:

step S01, preparing a foaming body according to the manufacturing requirement, wherein the foaming body is made of any one of Thermoplastic Polyurethane (TPU), thermoplastic Polyester (PBT), polyether block Polyamide (PEBA), Polystyrene (PS), polypropylene (PP) and ethylene-vinyl acetate (EVA);

step S02, arranging the conductive yarn in a foaming body with a preset shape;

and step S03, placing the foaming body sandwiched with the conductive yarn in an electromagnetic wave environment for foaming treatment, wherein the conductive yarn generates induced voltage by the electromagnetic wave and generates current to generate heat, and the surface of the foaming body is triggered to expand to obtain the sole.

As shown in fig. 2, the sole 100 includes a foam 110 and a conductive yarn 120 disposed in the foam 110. The surface of the foam body 110 creates a plurality of raised structures 130 of a popcorn effect, such that the surface of the sole 100 has a popcorn-like appearance.

The electromagnetic wave is a wave with an average wavelength of 0.1-1 m, and can generate a high-frequency electromagnetic field, so that the conductive yarn generates current and generates heat. In the present embodiment, the time for which the foam is placed in the electromagnetic wave environment may be adjusted according to the expansion state, and may be, for example, 5min, 10min, 15min, or the like

It can be understood that the foam has a low dielectric constant, and cannot generate heat energy through molecular polarization under the action of microwaves, and is almost transparent to microwaves, and cannot be directly foamed by microwaves.

As shown in fig. 3, the conductive yarn 120 includes a plurality of mesh structures 125 formed by weaving stainless steel fibers, specifically, the thickness gauge of the stainless steel fibers is about 150D. Specifically, the knitting method includes, but is not limited to, warp knitting, weft knitting, circular knitting, and shuttle knitting.

Further, the surface of the conductive yarn 120 is coated with the graphene material layer, and since graphene has very good heat conduction performance and the heat conductivity coefficient of graphene is as high as 5300W/mK, the graphene material layer can rapidly conduct heat generated by the conductive yarn to the foam on two sides of the conductive yarn, so that the foam generates heat and expands.

As shown in FIG. 4, before the foam 110 is subjected to the foaming treatment, the foam 110 is formed into a sheet shape, and the thickness of the foam 110 is controlled to be 2.5 to 3.5cm, preferably 3 cm.

In one embodiment, the material of the foam 110 is Ethylene Vinyl Acetate (EVA). Ethylene vinyl acetate is a thermoplastic resin obtained by copolymerizing ethylene and Vinyl Acetate (VA), and has the characteristics of high resilience and good flexibility; specifically, the VA content of the ethylene vinyl acetate may be 26%. The material in the embodiment of the invention has excellent flexibility, high resilience, good ductility and good processability. Preferably, the ethylene vinyl acetate may be of the type: one or more of EVA7470M, EVA460, EVA462, EVA265, EVA40L-03, and EVA 40W.

Specifically, the foam 110 includes a first foam 111 and a second foam 112. The step S02 includes the following steps:

the conductive yarn 120 may be sandwiched between the first and

second foams

111 and 112, and then the first foam 111 is bonded to the second foam 112 through the lattice structure 125 of the conductive yarn 120 by up-and-down heat-pressing, so that the conductive yarn 120 is fixed between the first and

second foams

111 and 112,

in other embodiments, the step S02 includes the following specific steps: the foaming body is preheated and softened, then is injected and coated on the outer side of the conductive yarn. Then the mixture is put into an electromagnetic wave environment for foaming treatment.

As shown in fig. 2, the present invention further provides a sole, the sole 110 is manufactured according to the above-mentioned sole manufacturing method, the sole 100 includes a foam body 110 and a conductive yarn disposed in the foam body 110, and when the sole 100 is placed in an electromagnetic wave environment, the foam body expands and forms a convex structure 130 on the surface of the foam body.

In one embodiment, the foam 110 includes a first foam 111 and a second foam 112, the conductive yarn 120 is sandwiched between the first foam 111 and the second foam 112, and the first foam 111 is bonded to the second foam 112 through a lattice structure 125 of the conductive yarn 120.

In another embodiment, the foam 110 is preheated to soften and then injected and coated on the outside of the conductive yarn.

The invention also provides a pair of sports shoes, which comprises the soles and the uppers prepared by the sole manufacturing method. The invention can select different formula combinations to meet the functional requirements of different products.

Claims

1. A method of making a shoe sole, the method comprising:

arranging the conductive yarn in a foaming body with a preset shape;

2. The method of claim 1, wherein the conductive yarn comprises a plurality of lattice structures woven from stainless steel fibers.

3. The method of claim 2, wherein the foam body includes a first foam body and a second foam body, and the step of disposing the conductive yarn in the predetermined shape of the foam body includes:

4. The method of claim 2, wherein the step of disposing the conductive yarn in the predetermined shape of foam comprises:

5. A method according to claim 2, characterized in that the stainless steel fibers have a thickness specification of 150D.

6. The method of claim 1, wherein the material of the foam is ethylene vinyl acetate.

7. The method of claim 1, wherein a surface of the conductive yarn is coated with a layer of graphene material.

8. The method according to claim 1, wherein the thickness of the foam is controlled to be 2.5 to 3.5 cm.

9. A sole, characterized in that, the sole is made according to the sole manufacturing method of any one of claims 1 to 8, the sole comprises a foaming body and conductive yarn, the surface of the foaming body has a convex structure, and the conductive yarn is arranged in the foaming body.

10. An athletic shoe, comprising a sole and an upper produced by the method according to any one of claims 1 to 8.