Method for manufacturing an integrally-formed shoe having no machine sewing

Abstract

An integrally-formed shoe having no machine sewing and a manufacturing method thereof are provided. A structure of the shoe includes: a lining sock body that uses a knitting manner and includes an opening; and a surface sock body that uses a knitting manner and includes an opening and a sole, where the opening of the lining sock body is nested inside the surface sock body; the two sock bodies are properly mounted on a sock machine; low melting point yarn and nylon elastic filament are mixed into knitting of the lining sock body; low melting point yarn, nylon elastic filament, and set yarn are mixed into knitting of the surface sock body; after the sock machine weaves and molds the two sock bodies into a whole, a hollow mold is nested inside the surface sock body; the whole is heated and baked to slightly damage surface tissues of the yarn, and is then cooled to make the set yarn in knitwear be reorganized and extended according to the shape of an external fixing mold, to present a predetermined pattern; and after the surface sock body presents the predetermined pattern, the sole is directly bonded to the bottom of the surface sock body so as to achieve bonding of the sole and the surface sock body, to complete the integrally-formed shoe having no machine sewing, so that a user feels more comfortable due to no machine sewing.

Claims

1. A method for manufacturing an integrally-formed shoe having no machine sewing, comprising the following steps: (a) encasing a surface sock body in a lining sock body with inside out, and knitting one end of the lining sock body to one end of the surface sock body to form a first sock body, wherein the lining sock body comprises nylon elastic filament and low melting point yarn which is mixed into an outer layer, and the surface sock body comprises nylon elastic filament, and low melting point yarn and set yarn which are mixed into an inner layer; (b) nesting a hollow mold inside the first sock body, wherein the hollow mold is heatable; (c) an external fixing mold clamping the outside of the first sock body while the hollow mold is inside the first sock body; (d) heating the hollow mold to raise the temperature of the first sock body while the external fixing mold is clamped onto the outside of the first sock body and the hollow mold is inside the first sock body, to cause the low melting point yarn in the lining sock body and the surface sock body of the first sock body to be adhered to each other, so that the lining sock body and the surface sock body are bonded to form a second sock body; (e) stopping heating the hollow mold, wherein the nylon elastic filament of the second sock body is shrunk into a shoe shape; (f) cooling the second sock body after the heating has stopped and while the external fixing mold is clamped onto the outside of the first sock body and the hollow mold is inside the first sock body, wherein the set yarn of the second sock body is shaped and the nylon elastic filament no longer has flexibility, and the external fixing mold molding the second sock body into a third sock body of a predetermined shoe shape; and (g) bonding a sole to the bottom of the third sock body, so as to complete the integrally formed shoe having no machine sewing.

2. The method for manufacturing an integrally-formed shoe having no machine sewing according to claim 1, wherein the hollow mold is provided with one to a plurality of steam holes on its surface.

3. The method for manufacturing an integrally-formed shoe having no machine sewing according to claim 1, wherein the hollow mold is further provided with a plurality of positioning pinholes, and the positioning pinholes are located on the edge of and at the bottom of the hollow shoe mold.

4. The method for manufacturing an integrally-formed shoe having no machine sewing according to claim 1, wherein the sock body is made from fiber cotton, combed cotton, mercerized cotton, spandex, lycra, polyamide fibers, nylon, acrylic fibers, polypropylene, polyester, terylene, viscose fibers, tencel, bamboo fibers, modal, linen, or supima.

5. The method for manufacturing an integrally-formed shoe having no machine sewing according to claim 1, wherein at the bottom of the sole, a glue is used to bond non-slip particles, injection-molded soles and sewn soles.

6. The method for manufacturing an integrally-formed shoe having no machine sewing according to claim 1, wherein leather or PVC artificial leather is pasted on the surface sock body, or printing is printed (offset-printed), heat-transfer printed or embroidered on the surface sock body.

7. The method for manufacturing an integrally-formed shoe having no machine sewing according to claim 1, wherein the sole is a rubber sole, a plastic sole, a TPR sole, a polyurethane sole (PU sole), a leather sole, an EV A sole (commonly known as a foam sole), or a composite sole.

8. The method for manufacturing an integrally-formed shoe having no machine sewing according to claim 1, wherein the hollow mold and the external fixing mold are made from iron, copper or aluminum.

9. The method for manufacturing an integrally-formed shoe having no machine sewing according to claim 1, wherein a waterproof and dustproof material or coating is added after the surface sock body presents the predetermined shoe shape.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a structural view of a sock body of an integrally-formed shoe having no machine sewing according to the present invention;

(2) FIG. 2 is a view of a hollow mold of an integrally-formed shoe having no machine sewing according to the present invention;

(3) FIG. 3 is a view of an external fixing mold of an integrally-formed shoe having no machine sewing according to the present invention;

(4) FIG. 4 is a completed view of an integrally-formed shoe having no machine sewing according to the present invention; and

(5) FIG. 5 is a schematic manufacturing flowchart of an embodiment of the present invention.

DETAILED DESCRIPTION

(6) Referring to FIG. 1, FIG. 1 is a structural view of a sock body of an integrally-formed shoe having no machine sewing according to the present invention, whose structure includes: a lining sock body 10 that uses a knitting manner and includes an opening 11; and a surface sock body 20 that uses a knitting manner and includes an opening 21 and a sole 30. The opening 11 of the lining sock body 10 is nested inside the surface sock body 20; the two sock bodies are properly mounted on a sock machine; low melting point yarn and nylon elastic filament are mixed into knitting of the surface sock body 20; after the sock machine weaves and molds the two sock bodies into a whole, referring to FIG. 2, a hollow mold 40 is nested inside the surface sock body 20; as the hollow mold 40 has a plurality of steam holes 41 and a plurality of positioning pinholes 42, at first, needles are threaded through the integrally woven sock body and are inserted into the positioning pinholes 42, and then the whole is heated and baked to slightly damage surface tissues of yarn; referring to FIG. 3, and the whole is then cooled to make the set yarn in knitwear be reorganized and extended according to the shape of an external fixing mold 50, to present a predetermined pattern; referring to FIG. 4, after the surface sock body 20 presents the predetermined pattern, the sole 30 is directly bonded to the bottom of the surface sock body 20 so as to achieve bonding of the sole and the surface sock body 20, to complete an integrally-formed shoe S having no machine sewing, so that a user feels more comfortable due to no machine sewing.

(7) Moreover, if the sock body is mainly used in manufacturing indoor shoes, it is washable.

(8) Referring to FIG. 5, FIG. 5 is a schematic manufacturing flowchart an embodiment of the present invention, the process including the following steps:

(9) At first, a surface sock body 20 is encased in a lining sock body 10 with inside out, and one end of the lining sock body 10 is knitted to one end of the surface sock body 20 to form a first sock body, where the lining sock body 10 includes nylon elastic filament and low melting point yarn which is mixed into an outer layer, and the surface sock body 20 includes nylon elastic filament, and low melting point yarn and set yarn which are mixed into an inner layer, as shown in Step s10.

(10) Next, a hollow mold 40 is nested inside the first sock body, where the hollow mold 40 is heatable, as shown in Step s20.

(11) Then, an external fixing mold 50 clamps the outside of the first sock body, as shown in Step s30.

(12) Next, the hollow mold 40 is heated to raise the temperature of the first sock body, to cause the low melting point yarn in the lining sock body 10 and the surface sock body 20 of the first sock body to be adhered to each other, so that the lining sock body 10 and the surface sock body 20 are bonded to form a second sock body, as shown in Step s40.

(13) Afterwards, heating of the hollow mold 40 is stopped, where the nylon elastic filament of the second sock body is shrunk into a shoe shape, as shown in Step s50.

(14) Next, the second sock body is cooled to lower the temperature thereof, where the set yarn of the second sock body is shaped and the nylon elastic filament no longer has flexibility, and the external fixing mold 50 molds the second sock body into a third sock body of a predetermined shoe shape, as shown in Step s60.

(15) Finally, Step s70 is performed, that is, a sole 30 is boned to the bottom of the third sock body, so as to complete the integrally-formed shoe S having no machine sewing.

(16) The above only describes the present invention in detail through a preferred embodiment; however, any modification and change made to the embodiment, for example, changes in the material of the sock body and in the material of the sole, should not depart from the spirit and scope of the present invention.

(17) On the basis of the foregoing detailed descriptions, persons skilled in the art can understand that the present invention indeed can achieve the foregoing objectives and complies with the provisions of the Patent Law, and thus the invention patent application is filed in accordance with law.