WO2022217740A1

WO2022217740A1 - Shoe forming process and shoe

Info

Publication number: WO2022217740A1
Application number: PCT/CN2021/101122
Authority: WO
Inventors: 杨君其; 韩健; 王有承; 刘超; 董斌
Original assignee: 安踏（中国）有限公司
Priority date: 2021-04-13
Filing date: 2021-06-21
Publication date: 2022-10-20

Abstract

Disclosed are a shoe forming process and a shoe. The shoe comprises a shoe upper portion, a reinforcing layer, and an inflatable sole. The inflatable sole comprises an upper portion of the sole, a lower portion of the sole, and an inflating valve; the edges of the upper portion of the sole and the lower portion of the sole are in butt joint to form a cavity, and the inflating valve is communicated with the cavity. The forming process of the shoe comprises the steps: combining an upper mold, a lower mold, and a middle mold to form an upper mold cavity and a lower mold cavity; vacuumizing the upper mold cavity and the lower mold cavity; injecting, into the upper mold cavity and the lower mold cavity, rubber in which a vulcanizing agent is added, and maintaining for more than 20 seconds; opening the upper mold and the lower mold to move the middle mold out; passing the treated inflating valve through the edge of the lower portion of the sole; combining the upper mold and the lower mold, injecting nitrogen at pressure of at least 2 mpa by means of the inflating valve, and maintaining for more than 250 seconds; discharging nitrogen; opening the upper mold and the lower mold, and moving the inflatable sole out and cooling; adhering the reinforcing layer on the upper surface of the inflatable sole; brushing an adhesive on the bottom wall of the shoe upper portion and the upper surface of the reinforcing layer; and pressing the shoe upper portion on the upper surface of the reinforcing layer.

Description

A shoe molding process and shoe

technical field

The invention relates to the field of footwear products, in particular to a shoe molding process and shoes.

Background technique

Shoes are a necessity in people's daily life. In order to make the soles feel more comfortable and more in line with the needs of the human body, air cushions are usually installed on the soles to enhance the cushioning and shock absorption function of the soles and reduce the shock generated during exercise. Department of injury.

Existing shoes with air cushion function, when the air cushion is worn out, due to structural limitations, the repair method is limited, and some air cushions cannot even be repaired, resulting in the shoes can not be used continuously; shoes with air cushion inflatable function, due to the sole There is uneven surface thickness, and bulging is easy to occur during the inflation process. Therefore, it is necessary to study how to effectively repair the worn air-cushion shoes and how to effectively avoid the bulging of the sole during the inflation process.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background art, and to provide a shoe molding process and shoes produced by the molding process.

To achieve the above object, the present invention adopts the following technical solutions:

A shoe molding process, the shoe includes a vamp surface, a reinforcing layer and an inflatable sole, the inflatable sole includes an upper sole, a lower sole and a valve, the upper sole and the lower edge of the sole are butted and enclosed to form a void cavity, the valve mouth is communicated with the cavity; including the steps:

S1: Clamp the upper mold, the lower mold and the middle mold, the middle mold isolates the upper mold and the lower mold from each other, and the middle mold and the upper mold are enclosed to form an upper mold cavity for molding In the upper part of the sole, the middle mold and the lower mold are enclosed to form a lower mold cavity, which is used for molding the lower part of the sole;

S2: Evacuate the upper mold cavity and the lower mold cavity;

S3: inject the rubber material with vulcanizing agent into the upper mold cavity and the lower mold cavity at a pressure of 100-120 bar, and the injection temperature is 58-67 degrees, and keep it for more than 20 seconds;

S4: open the upper mold and the lower mold and move out of the middle mold, so that the upper part of the sole is attached to the upper mold, and the lower part of the sole is attached to the lower mold;

S5: place the air valve that is coated with the adhesive and cooled after being preheated in the oven on the upper surface of the lower mold, and runs through the edge of the lower part of the shoe sole;

S6: Clamp the upper mold and the lower mold;

S7: heating the upper mold and the lower mold to 145-155 degrees, and injecting nitrogen at a pressure of at least 2mpa through the valve for more than 250 seconds to fully vulcanize the upper part of the sole and the lower part of the sole;

S8: Open the valve to discharge nitrogen;

S9: open the upper mold and the lower mold, remove the inflatable sole and cool;

S10: Adhering a reinforcing layer on the upper surface of the inflatable sole;

S11: Apply glue to the bottom surface of the vamp and the upper surface of the reinforcement layer:

S12: Pressing the vamp part on the upper surface of the reinforcing layer.

Further, the air valve is arranged at the heel position of the inflatable sole.

Further, in the step S9, the edge of the inflatable sole is blown with a high-pressure air gun, and the inflatable sole is taken out.

Further, between the steps S9 and S10, a step S9.1 is also included: trimming the burrs of the inflatable sole.

Further, at least one first protrusion is protruded on the top wall of the cavity wall of the upper mold cavity, and a second protrusion opposite to the first protrusion is protruded on the bottom wall of the cavity wall of the lower mold cavity. The first protrusion makes the upper part of the sole form a first concave part concave toward the lower part of the sole; the second protrusion makes the lower part of the sole form a second concave part concave toward the upper part of the sole; After the upper part of the sole and the edge of the lower part of the sole are butted together, the upper part of the sole at the bottom of the first concave part and the lower part of the sole at the top of the second concave part are attached or integrated.

A shoe comprising a vamp, a reinforcement layer and an inflatable sole; the upper surface of the reinforcement layer is adhered to the bottom surface of the vamp, and the lower surface of the reinforcement layer is adhered to the upper surface of the inflatable sole; the The inflatable sole is made of rubber material, and the inflatable sole includes an upper part of the sole, a lower part of the sole and a valve; the upper part of the sole and the lower edge of the sole are butted to form a cavity, and the valve is connected to the cavity. communication; the air valve is located at the heel position of the inflatable sole.

Further, the reinforcement layer is a mesh fabric.

Further, the upper part of the sole is provided with a first concave part that is concave toward the lower part of the sole; the lower part of the sole is provided with a second concave part that is concave toward the upper part of the sole; The lower part of the sole at the top of the second concave part is fitted or connected as a whole.

As can be seen from the above description of the present invention, with respect to the prior art, the present invention has the following beneficial effects:

1. The upper mold and the lower mold are isolated from each other by the middle mold, and the middle mold is respectively enclosed with the upper mold and the lower mold to form the upper mold cavity and the lower mold cavity, so that when the rubber is injected into the upper mold cavity and the lower mold cavity, the sole is The upper and lower sole can be preformed separately to semi-solid. After the middle mold is removed, the air valve is glued to the edge of the lower part of the sole, and communicates with the cavity through the edge of the lower part of the sole to form an inflatable opening of the inflatable sole. Then, the upper mold and the lower mold are closed, so that the edges of the upper part of the sole and the lower part of the sole are butted together, and nitrogen gas is injected into the mold through the valve to help form a cavity between the upper part of the sole and the lower part of the sole; the upper mold and The process of lower mold clamping is maintained for more than 250 seconds, so that the upper part of the sole and the lower part of the sole are fully vulcanized. After the inflatable sole is formed and cooled, the reinforcing layer is adhered to the upper surface of the inflatable sole to increase the strength of the inflatable sole, and finally the upper surface of the shoe is adhered to the upper surface of the reinforcing layer. Since the pneumatic sole is similar to the tire structure, when the pneumatic sole is worn out, the pneumatic sole can be repaired with reference to various methods of repairing the tire; and because the added reinforcement layer can enhance the strength of the upper surface of the pneumatic sole, when the pneumatic sole is inflated During the process, it is not easy to produce bulge.

2. Set the valve on the heel of the inflatable sole to facilitate docking with external inflatable equipment.

3. Blow the edge of the inflatable sole with a high-pressure blower, and take out the inflatable sole, which is conducive to the demoulding of the inflatable sole.

4. Trim the burrs of the inflatable soles to avoid the burrs from scratching the hands, and the whole is more beautiful.

5. The reinforcement layer can enhance the strength of the upper surface of the inflatable sole. When the air is inflated into the cavity through the valve, it is not easy to produce bulging; because the upper part of the sole and the lower edge of the sole are connected to form a cavity, the inflatable sole is similar to the tire structure, and it is easy to walk when walking. It can effectively buffer and shock absorption, and users can adjust the amount of inflation according to their own needs; if the inflatable sole is accidentally worn out while walking, it can be repaired by referring to various tire repair methods.

6. The first concave part and the second concave part are arranged, so that the first concave part and the second concave part form two air columns abutting against each other, which can enhance the support performance of the inflatable sole.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the three-dimensional structural representation of shoe in this embodiment;

Fig. 2 is the bottom view schematic diagram of inflatable sole in this embodiment;

Fig. 3 is the sectional schematic diagram of A-A in Fig. 2;

Fig. 4 is the sectional schematic diagram of B-B in Fig. 2;

FIG. 5 is a schematic cross-sectional view of C-C in FIG. 2 .

Description of main reference signs:

vamp 1;

Reinforcement layer 2;

Inflatable sole 3; sole upper part 31; first recessed part 311; sole lower part 32; second recessed part 321; valve 33; cavity 34.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be construed to exclude other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In the claims, description and the above drawings of the present invention, unless otherwise clearly defined, the terms "first", "second" or "third" are used to distinguish different objects, rather than used for Describe a specific order.

In the claims, description and the above drawings of the present invention, unless otherwise expressly defined, the terms "center", "horizontal", "longitudinal", "horizontal", "vertical" and "top" are used for directional words. , "bottom", "inside", "outside", "up", "down", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. The positional relationship is based on the orientation and positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation. , so it should not be construed as limiting the specific protection scope of the present invention.

In the claims, description and the above drawings of the present invention, unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" should be used in a broad sense, that is, there is no displacement relationship and relative rotation relationship between the two. Any connection means, that is to say, including non-removable fixed connection, detachable fixed connection, integrated and fixed connection through other devices or elements.

In the claims, description and the above drawings of the present invention, if the terms "including", "having" and their modifications are used, the intention is to "include but not be limited to".

Referring to FIG. 1, FIG. 1 shows a schematic structural diagram of a shoe in the present invention. The shoe includes a vamp 1, a reinforcing layer 2 and an inflatable sole 3 in sequence from top to bottom.

Wherein, the reinforcement layer 2 is a mesh fabric. The upper surface of the reinforcement layer 2 is adhered to the bottom surface of the vamp part 1 , and the lower surface of the reinforcement layer 2 is adhered to the upper surface of the pneumatic sole 3 .

As shown in FIG. 3 to FIG. 5 , the pneumatic sole 3 is made of rubber material, and includes an upper sole 31 , a lower sole 32 and a valve 33 . The upper part 31 of the sole and the lower part 32 of the sole are butted together to form a cavity 34 . The air valve 33 is installed at the heel position of the lower part 32 of the sole obliquely upward, and runs through the edge of the lower part 32 of the shoe sole, and extends into the cavity 34 to communicate with the cavity 34; The upward inclination can prevent unnecessary wear of the valve 33 . The upper sole 31 is provided with at least one first concave portion 311 concave toward the sole lower portion 32 , and the sole lower 32 is provided with at least one second concave portion 321 concave toward the sole upper portion 31 . The upper part 31 of the sole at the bottom of the first concave part 311 and the lower part 32 of the sole at the top of the second concave part 321 are attached or integrated into one.

When the shoe of this embodiment is in use, since the pneumatic sole 3 is similar in structure to a tire, gas is contained in the cavity 34 of the pneumatic sole 3, so it can well cushion and shock during walking; and a first concave portion is provided. 311 and the second concave portion 321 , in the process of walking, the first concave portion 311 and the second concave portion 321 form an air column abutting against each other, which effectively enhances the support performance of the inflatable sole 3 . In the process of using, the user can adjust the amount of inflation according to their own needs. When inflating, an inflatable device with two inflatable joints can be selected, which can ensure that the inflation amount of the left and right shoes is the same. When inflating, because the inflatable sole 3 is provided with the reinforcing layer 2 to enhance the strength of the upper surface of the inflatable sole 3, when inflating the cavity 34 through the air valve 33, it is difficult to produce a bulge. If the pneumatic sole 3 is accidentally worn out during walking, it can be repaired by referring to various repair methods for tires.

This embodiment also provides a shoe molding process for producing the above-mentioned shoes. The molding process includes the following steps:

S1: Clamp the upper mold, the lower mold and the middle mold, the middle mold isolates the upper mold and the lower mold from each other, and the middle mold and the upper mold are enclosed to form an upper mold cavity, which is used to form the upper part 31 of the sole, and the middle mold and the lower mold surround The lower mold cavity is combined to form the lower part 32 of the sole.

Preferably, at least one first protrusion is protruded on the top wall of the cavity wall of the upper mold cavity, and a second protrusion opposite to the first protrusion is protruded on the bottom wall of the cavity wall of the lower mold cavity; The upper part 31 of the sole is formed into a first concave part 311 which is recessed towards the lower part 32 of the sole; the second protrusion makes the lower part 32 of the sole form a second recess 321 which is recessed towards the upper part 31 of the sole; , the upper part 31 of the sole at the bottom of the first concave part 311 and the lower part 32 of the sole at the top of the second concave part 321 are attached or connected as a whole.

S2: Evacuate the upper cavity and the lower cavity.

S3: Inject the rubber compound with vulcanizing agent into the upper cavity and the lower cavity at a pressure of 100-120 bar, and the injection temperature is 58-67 degrees for more than 20 seconds.

S4: Open the upper mold and the lower mold and remove the middle mold, so that the upper part 31 of the sole is attached to the upper mold, and the lower part 32 of the sole is attached to the lower mold.

S5: Place the air valve 33 coated with adhesive and cooled after being preheated in the oven on the upper surface of the lower mold and penetrate the edge of the lower part 32 of the sole.

Preferably, the air valve 33 is arranged at the heel position of the pneumatic sole 3 .

S6: Clamp the upper mold and the lower mold so that the edges of the upper part 31 of the sole and the lower part 32 of the sole are butted together.

S7: The upper mold and the lower mold are heated to 145-155 degrees, and nitrogen is injected at a pressure of at least 2mpa through the valve 33 for more than 250 seconds, so that the upper part 31 of the sole and the lower part 32 of the sole are fully vulcanized.

S8: Open the valve 33 to discharge nitrogen gas.

S9: Open the upper mold and the lower mold, remove the inflatable sole 3 and cool.

Preferably, the edge of the inflatable sole 3 is blown by a high-pressure blower, and the inflatable sole 3 is taken out.

S9.1: Trim the burrs of the pneumatic sole 3.

S10 : Adhering the reinforcement layer 2 on the upper surface of the pneumatic sole 3 .

S11: Apply glue to the bottom surface of the vamp part 1 and the upper surface of the reinforcement layer 2.

S12: Press the vamp 1 to the upper surface of the reinforcement layer 2.

When shoes are produced by the above molding process, the upper mold and the lower mold are isolated from each other by the middle mold, and the middle mold is enclosed with the upper mold and the lower mold to form an upper mold cavity and a lower mold cavity, respectively, so that when the rubber is injected into the upper mold cavity and the lower mold cavity When inside the mold cavity, the upper sole 31 and lower sole 32 can be separately preformed to a semi-solid state. After the middle mold is removed, the air valve 33 is glued to the edge of the lower part 32 of the sole to form the inflatable opening of the inflatable sole 3 . Then, the upper mold and the lower mold are closed so that the edges of the upper sole 31 and the lower sole 32 are butted together, and nitrogen gas is injected into the mold through the valve 33 to help form a void between the upper sole 31 and the lower sole 32 Cavity 34; the process of clamping the upper mold and the lower mold is maintained for more than 250 seconds, so that the upper part 31 of the sole and the lower part 32 of the sole are fully vulcanized. After the inflatable sole 3 is formed and cooled, the reinforcement layer 2 is adhered to the upper surface of the inflatable sole 3 to increase the strength of the inflatable sole 3 , and finally the vamp 1 is attached to the upper surface of the reinforcement layer 2 . Since the pneumatic sole 3 is similar in structure to a tire, when the pneumatic sole 3 is worn out, the pneumatic sole 3 can be repaired with reference to various tire repair methods; and the strength of the upper surface of the pneumatic sole 3 can be enhanced due to the increased reinforcement layer 2 , In the process of inflating the inflatable sole 3, it is not easy to produce bulge. It should be understood that in the shoes described in this embodiment, after the inflatable sole 3 is formed, a part of the gas can be filled into the cavity 34 first. When the cavity 34 is full, or directly after the inflatable sole 3 and the reinforcement layer 2 are integrated into one, the cavity 34 is filled with gas, which can effectively avoid the generation of bulging.

The valve 33 is arranged at the heel position of the inflatable sole 3 to facilitate docking with external inflatable equipment.

The edge of the inflatable sole 3 is blown with a high-pressure blower, and the inflatable sole 3 is taken out, which is conducive to the demoulding of the inflatable sole 3.

The burrs of the inflatable sole 3 are trimmed to prevent the burrs from scratching the hands, and the whole is more beautiful.

The descriptions of the above specification and embodiments are used to explain the protection scope of the present invention, but do not constitute a limitation on the protection scope of the present invention. With the inspiration of the present invention or the above-mentioned embodiments, those of ordinary skill in the art can obtain the embodiments of the present invention through logical analysis, reasoning or limited experiments in combination with common knowledge, common technical knowledge in the field and/or prior art. Modifications, equivalent replacements or other improvements of or some of the technical features shall be included within the protection scope of the present invention.

Claims

A shoe molding process, the shoe includes a vamp surface, a reinforcing layer and an inflatable sole, the inflatable sole includes an upper sole, a lower sole and a valve, the upper sole and the lower edge of the sole are butted and enclosed to form a void cavity, and the valve mouth is communicated with the cavity; it is characterized in that it includes the steps:

S1: Clamp the upper mold, the lower mold and the middle mold, the middle mold isolates the upper mold and the lower mold from each other, and the middle mold and the upper mold are enclosed to form an upper mold cavity for molding In the upper part of the sole, the middle mold and the lower mold are enclosed to form a lower mold cavity, which is used for molding the lower part of the sole;

S2: Evacuate the upper mold cavity and the lower mold cavity;

S3: inject the rubber material with vulcanizing agent into the upper mold cavity and the lower mold cavity at a pressure of 100-120 bar, and the injection temperature is 58-67 degrees, and keep it for more than 20 seconds;

S4: open the upper mold and the lower mold and move out of the middle mold, so that the upper part of the sole is attached to the upper mold, and the lower part of the sole is attached to the lower mold;

S5: place the air valve that is coated with the adhesive and cooled after being preheated in the oven on the upper surface of the lower mold, and runs through the edge of the lower part of the shoe sole;

S6: Clamp the upper mold and the lower mold;

S7: heating the upper mold and the lower mold to 145-155 degrees, and injecting nitrogen at a pressure of at least 2mpa through the valve for more than 250 seconds to fully vulcanize the upper part of the sole and the lower part of the sole;

S8: Open the valve to discharge nitrogen;

S9: open the upper mold and the lower mold, remove the inflatable sole and cool;

S10: Adhering a reinforcing layer on the upper surface of the inflatable sole;

S11: Apply glue to the bottom surface of the vamp and the upper surface of the reinforcement layer:

S12: Pressing the vamp part on the upper surface of the reinforcing layer.
The molding process of a shoe according to claim 1, wherein the air valve is arranged at the heel position of the inflatable sole.
The molding process of a shoe according to claim 1, wherein in the step S9, the edge of the inflatable sole is blown with a high-pressure air gun, and the inflatable sole is taken out.
A shoe molding process according to claim 1, characterized in that, between the steps S9 and S10, it further comprises a step S9.1: trimming the burrs of the inflatable sole.
A shoe molding process according to claim 1, wherein at least one first protrusion is protruded on the top wall of the cavity wall of the upper mold cavity, and a bottom wall of the cavity wall of the lower mold cavity is provided with at least one first protrusion. a second protrusion opposite to the first protrusion is provided;

The first protrusion makes the upper part of the sole form a first concave part concave toward the lower part of the sole;

The second protrusion makes the lower part of the sole form a second concave part concave toward the upper part of the sole;

After the upper part of the sole and the edge of the lower part of the sole are butted together, the upper part of the sole at the bottom of the first concave part and the lower part of the sole at the top of the second concave part are attached or integrated.
A shoe is characterized in that it comprises a vamp surface, a reinforcement layer and an inflatable sole;

The upper surface of the reinforcement layer is adhered to the bottom surface of the upper part of the shoe, and the lower surface of the reinforcement layer is adhered to the upper surface of the pneumatic sole;

The inflatable sole is made of rubber material, and the inflatable sole includes an upper part of the sole, a lower part of the sole and a valve;

The upper part of the sole and the edge of the lower part of the sole are butted to form a cavity, and the air valve is communicated with the cavity;

The air valve is located at the heel position of the inflatable sole.
A shoe according to claim 6, wherein the reinforcing layer is a mesh fabric.
The shoe according to claim 7, wherein the upper part of the sole is provided with a first concave part that is recessed toward the lower part of the sole;

The lower part of the sole is provided with a second concave part recessed toward the upper part of the sole;

The upper part of the sole at the bottom of the first concave part and the lower part of the sole at the top of the second concave part are attached or integrated.