CN118744499A - A method and equipment for producing a shoe sole with explosive color mixing effect - Google Patents

Abstract

The invention relates to a sole manufacturing method and sole manufacturing equipment with explosion color mixing effect, comprising the following steps: manufacturing a thermoplastic polyurethane rubber material bag, placing the thermoplastic polyurethane rubber material bag, and placing the manufactured material bag into a shoe outsole mold positioning block with the size matched with that of the material bag; injecting an outsole material into an outsole mold, wherein the outsole material generates heat in the molding process, a material bag encounters heat, expansion blasting is carried out, paint in the material bag is sprayed out, one part of paint is sprayed on the outsole material, the other part of paint is sprayed on a side mold of the outsole mold, and along with foaming molding of the outsole material, the paint and the outsole material react and are combined together to form an irregular explosion color mixing effect; compared with the prior art, the sole formed each time has irregular explosion effect, firm color fitting, difficult falling off and unobvious multi-layer color layers and boundaries, and each pair of soles has unique appearance, thereby meeting the personalized requirements of customers.

Description

A method and equipment for producing a shoe sole with explosive color mixing effect

Technical Field

The invention relates to the technical field of sole processing, and in particular to a sole manufacturing method and sole manufacturing equipment with explosive color mixing effect.

Background Art

In order to enhance the color effect of the finished shoe sole, a common method is to spray paint on the sole. This method has a complicated operation process, a certain defect rate, high cost, and a certain amount of environmental pollution. The paint is also easy to fall off during the use of the shoe, affecting the appearance. At the same time, in the preparation process of the sole and the upper being directly integrated, the subsequent painting needs to cover the parts of the upper that do not need to be sprayed. When the edge of the sole is irregular, it is not convenient to cover it, and the operation is complicated.

More information related to the above technical solution can also be found in the following documents:

For example, patent publication number CN100417516C discloses a method for manufacturing a colored sole and its products, which uses a synthetic film with a pattern. The synthetic film is cut into the required size and shape and then placed in a sole forming mold. The sole material is introduced into the mold and fused with the synthetic film to form a colored sole with a variety of patterns on the outside.

In the process of implementing the present invention, the inventors found that the prior art has the following problems:

1. The pattern is single, mainly in the shape of dots or water drops. The original PU bottom color spraying process is to add gas to the spray gun, turn the paint into small dots and shoot them onto the PU bottom surface, so the pattern formed will be more single and regular, which cannot meet the personalized needs of customers;

2. The color spray pattern is not wear-resistant and easy to fall off. It is more likely to fall off in acidic and alkaline environments. The original color spray technology is to spray the pattern after the PU is formed. If the PU surface is not treated well, the color spray pattern will easily fall off;

3. It is easy to pollute other parts of the outsole. The original color spraying technology is to add air to the paint spray gun to spray the paint in a mist-like state on the outsole. The color spraying range is uncontrollable and it is easy to pollute other parts of the outsole;

4. Harmful to the operator. The original color spraying technology is to add gas to the paint spray gun to spray the paint in a mist-like state, which increases the risk of the operator inhaling the paint (the paint itself is toxic);

5. Long operation process. The original color spraying technology needs to wait until the PU is formed before color spraying, and it cannot be formed in one time.

Summary of the invention

In view of the above problems, the present application provides a sole production method and sole production equipment with explosive mixed color effect, which are used to solve the technical problem in the prior art that the pattern is single and cannot meet the personalized needs of customers.

To achieve the above objectives, in a first aspect, the inventor provides a method for manufacturing a shoe sole with an explosive color mixing effect, comprising the following steps:

To make a thermoplastic polyurethane rubber package:

Using the molding principle of air cushion, make the shell of the material bag with the preset thickness, reserve the feeding port and feeding valve, add the paint of the required color into the material bag and set it aside;

Place the thermoplastic polyurethane rubber package:

Put the prepared material bag into a shoe outsole mold positioning block with a size suitable for the material bag;

Mould closing:

The mold is closed, and the outsole material is injected into the outsole mold. The outsole material generates heat during the molding process. When the material bag encounters the heat, it expands and explodes, and the paint in the material bag sprays out. Part of the paint is sprayed on the outsole material, and the other part of the paint is sprayed on the side mold of the outsole mold. As the outsole material foams and forms, the paint reacts with the outsole material to form an irregular explosion mixed color effect;

Mould opening:

After the preset time, the outsole material is fully matured, the mold is opened, and the outsole with a colorful pattern can be obtained.

As an embodiment of the present invention, in the step of preparing the thermoplastic polyurethane rubber package, a package shell having a thickness of 0.05 mm to 0.1 mm is prepared.

As an embodiment of the present invention, in the step of mold closing, the outsole material injected into the outsole mold is a polyurethane material. The polyurethane material generates heat during the molding process, causing the material bag to expand and explode.

As an embodiment of the present invention, in the step of placing the thermoplastic polyurethane rubber material bag, more than two positioning blocks are provided on the shoe outsole mold, and more than two material bags are placed on the shoe outsole mold.

As an embodiment of the present invention, in the mold closing step, the outsole mold is provided with more than two material channels, the lengths of the two or more material channels are different, and the drop points of the material channels correspond to the positions of the material bags.

Different from the prior art, the above technical scheme prefabricates material bags, adds paint of required color into the material bags, and places the prepared material bags into a positioning block of a shoe outsole mold with a size adapted to the material bags; injects the shoe outsole material into the shoe outsole mold, and the shoe outsole material generates heat during the molding process. The material bags encounter the heat, expand and explode, and the paint in the material bags sprays out, with one part of the paint sprayed on the shoe outsole material and the other part of the paint sprayed on the side mold of the shoe outsole mold. As the shoe outsole material foams and molds, the paint reacts with the shoe outsole material and combines together to form an irregular explosion mixed color effect. In this way, the explosion effect of each molded sole is irregular, the color fits firmly and is not easy to fall off, there are multiple color layers with unclear boundaries, and each pair of soles has a unique appearance to meet the personalized needs of customers.

To achieve the above object, in a second aspect, the inventor provides a shoe sole manufacturing device having an explosive mixed color effect, the shoe sole manufacturing device comprising:

A sole mold, the sole mold comprising a left mold, a right mold and a bottom mold, the left mold and the right mold are respectively arranged on the left and right sides of the bottom mold, and the shape of the top of the bottom mold is consistent with the shape of the sole; and

A material bag, wherein the material bag is arranged on the bottom mold through a positioning block, the material bag comprises a material bag shell and a feeding port, the feeding port is arranged on the material bag shell, the material bag shell is used to contain paint, the sole mold is provided with a material channel, the material drop point of the material channel is arranged relative to the material bag, and the material bag shell is made of a material with a low melting point.

As an embodiment of the present invention, the sole manufacturing equipment includes more than two material bags, and the more than two material bags are arranged along the length direction of the bottom mold.

As an embodiment of the present invention, the sole mold is provided with more than two material channels, the number of the material channels corresponds to the number of the material packages, and the position of each material package corresponds to a material drop point of the material channel.

As an implementation mode of the present invention, a positioning block is respectively provided on both sides of the material bag, and two positioning blocks fix one material bag.

As an embodiment of the present invention, the material package further includes a feeding valve, which is arranged on the feeding port, and is used to open or close the feeding port. The feeding valve is made of a material with a low melting point.

Different from the prior art, the technical solution of the present application comprises a material bag, which is arranged on the bottom mold through a positioning block. The material bag comprises a material bag shell and a feeding port, and the feeding port is arranged on the material bag shell. The material bag shell is used to contain paint, and the sole mold is provided with a material channel. The drop point of the material channel is arranged relatively to the material bag, and the material bag shell is made of a material with a low melting point. In this way, in the process of producing soles with the sole mold, the temperature of the sole mold exceeds the melting point of the material bag, the material bag explodes, and the paint in the material bag reacts with the outsole material to combine together to form an irregular explosion mixed color effect. The explosion effect of each molded sole is irregular, the color fits firmly and is not easy to fall off, there are multiple color layers with unclear boundaries, and each pair of soles has a unique appearance to meet the personalized needs of customers.

The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation mode and drawings of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.

In the drawings of the specification:

FIG1 is a schematic flow chart of a method for manufacturing a shoe sole with an explosive color mixing effect according to an embodiment of the present application;

FIG2 is a schematic structural diagram of a shoe sole manufacturing device having an explosive color mixing effect according to an embodiment of the present application;

FIG3 is a cross-sectional schematic diagram of a shoe sole manufacturing device having an explosive color mixing effect according to an embodiment of the present application;

FIG4 is a schematic diagram of the structure of a material bag and a positioning block according to an embodiment of the present application;

FIG5 is a schematic diagram of a shoe sole manufacturing device in use according to an embodiment of the present application;

FIG. 6 is a second schematic diagram of the use status of the sole manufacturing equipment according to an embodiment of the present application.

The reference numerals in the above drawings are described as follows:

1. Left mold,

2. Right mold,

3. Bottom mold, 31. Positioning block,

4. Material channel, 41. Feed inlet,

5. material bag, 51. material bag shell, 52. material feeding port, 53. material feeding valve, 54. paint.

DETAILED DESCRIPTION

In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved of the present application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

Hereinafter, the embodiments of the present application are specifically disclosed in detail with appropriate reference to the accompanying drawings. However, there may be cases where unnecessary detailed descriptions are omitted. For example, there may be cases where detailed descriptions of well-known matters and repeated descriptions of actually the same structures are omitted. This is to avoid the following description from becoming unnecessarily lengthy and to facilitate the understanding of those skilled in the art. In addition, the drawings and the following description are provided for those skilled in the art to fully understand the present application and are not intended to limit the subject matter described in the claims.

"Scope" disclosed in the present application is limited in the form of lower limit and upper limit, and a given range is limited by selecting a lower limit and an upper limit, and the selected lower limit and upper limit define the boundary of a special range. The scope limited in this way can be including end values or not including end values, and can be arbitrarily combined, that is, any lower limit can be combined with any upper limit to form a scope. For example, if the scope of 60-120 and 80-110 is listed for a specific parameter, it is understood that the scope of 60-110 and 80-120 is also expected. In addition, if the minimum range values 1 and 2 are listed, and if the maximum range values 3,4 and 5 are listed, the following scope can be all expected: 1-3, 1-4, 1-5, 2-3, 2-4 and 2-5. In the present application, unless otherwise specified, the numerical range "a-b" represents the abbreviation of any real number combination between a and b, wherein a and b are real numbers. For example, the numerical range "0-5" means that all real numbers between "0-5" are listed in this document, and "0-5" is just an abbreviation of these numerical combinations. In addition, when a parameter is expressed as an integer ≥ 2, it is equivalent to disclosing that the parameter is, for example, an integer of 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc.

Unless otherwise specified, all embodiments and optional embodiments of the present application can be combined with each other to form a new technical solution.

Unless otherwise specified, all technical features and optional technical features of this application can be combined with each other to form a new technical solution.

If there is no special explanation, all steps of the present application can be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), which means that the method may include steps (a) and (b) performed sequentially, or may include steps (b) and (a) performed sequentially. For example, the method may further include step (c), which means that step (c) may be added to the method in any order. For example, the method may include steps (a), (b) and (c), or may include steps (a), (c) and (b), or may include steps (c), (a) and (b), etc.

If there is no special explanation, the "include" and "comprising" mentioned in this application represent open-ended or closed-ended expressions. For example, the "include" and "comprising" may represent that other components not listed may also be included or only the listed components may be included or only the listed components may be included.

The terms "above" and "below" used in this application include the number, for example, "one or more" means one or more, and "one or more of A and B" means "A", "B" or "A and B".

If not specifically stated, in this application, the term "or" is inclusive. For example, the phrase "A or B" means "A, B, or both A and B". More specifically, any of the following conditions satisfies the condition "A or B": A is true (or exists) and B is false (or does not exist); A is false (or does not exist) and B is true (or exists); or both A and B are true (or exist).

Unless otherwise stated, contents and percentages throughout the present application are based on mass.

Embodiment 1

According to some embodiments of the present application, please refer to FIG. 1 to FIG. 6 , the present embodiment relates to a method for manufacturing a sole with an explosive mixed color effect, comprising the following steps:

To make a thermoplastic polyurethane rubber package:

Using the molding principle of air cushion, make the shell of the material bag with a thickness of 0.05mm-0.1mm, reserve the feeding port and feeding valve, add the paint of the required color into the material bag and set it aside;

Place the thermoplastic polyurethane rubber package:

Put the prepared material bag into a shoe outsole mold positioning block with a size suitable for the material bag;

Mould closing:

The mold is closed, and the outsole material is injected into the outsole mold. The outsole material is a polyurethane material. The outsole material generates heat during the molding process. When the material bag encounters the heat, it expands and explodes, and the paint in the material bag is sprayed out. Part of the paint is sprayed on the outsole material, and the other part of the paint is sprayed on the side mold of the outsole mold. As the outsole material foams and forms, the paint reacts with the outsole material to form an irregular explosion mixed color effect;

Mould opening:

After 3-5 minutes, the outsole material is fully matured, the mold is opened, and the outsole with colorful patterns can be obtained.

During the production process, after the sole is placed on the outsole mold, there is a certain gap between the sole and the mold for injecting the outsole material. The material bag explodes when encountering high temperature, and part of the paint is sprayed on the outsole material flowing out of the injection molding, and the other part of the paint is sprayed on the side mold of the outsole mold. The outsole material fills the gap between the sole and the mold, and finally the paint is attached to the sole. The material bag can be set at the drop point of the material channel 4, or it can be set on one side of the drop point of the material channel.

In this embodiment, the material of the feeding valve is thermoplastic polyurethane rubber material or polyurethane material. The feeding valve is left in the outsole material.

According to some embodiments of the present application, optionally, in the step of making the thermoplastic polyurethane rubber material bag, a material bag shell with a thickness of 0.05mm-0.1mm is made. In this way, it can be ensured that the material bag shell 51 explodes during the molding process, and the material bag shell 51 is not easy to break when the paint 54 is loaded, which is convenient for production.

According to some embodiments of the present application, optionally, in the step of closing the mold, the outsole material injected into the outsole mold is a polyurethane material, and the polyurethane material generates heat during the molding process, and its instantaneous temperature is 150 degrees Celsius to 190 degrees Celsius, causing the material bag to expand and explode. In this way, the material bag 5 is convenient to expand and explode, and the outsole material is a polyurethane material, which is convenient to be bonded with the thermoplastic polyurethane rubber material bag 5, and will not affect the physical properties of the shoe.

According to some embodiments of the present application, optionally, in the step of placing the thermoplastic polyurethane rubber material bag, two or more positioning blocks are provided on the shoe outsole mold, and two or more material bags are placed on the shoe outsole mold. In this way, the material bag 5 is conveniently positioned by the two or more positioning blocks 31, and the two or more material bags 5 can contain a variety of paints. The two or more material bags 5 can be exploded together or separately to form different effects.

According to some embodiments of the present application, optionally, in the step of mold closing, the shoe outsole mold is provided with more than two material channels, the lengths of the more than two material channels are different, the material drop points of the material channels correspond to the positions of the material bags, one material channel corresponds to the positions of the two positioning blocks, and one material bag is provided on the two positioning blocks. The shoe outsole material flowing out through the material channels of different lengths causes the material bags 5 at different positions to have different bursting times. In this way, the shoe outsole material flowing out through the material channels 4 of different lengths causes the material bags 5 at different positions to have different bursting times, forming a multi-color layer with unclear boundaries, further meeting the personalized needs of customers.

Different from the prior art, the above technical scheme prefabricates a material bag 5, adds a paint 54 of the required color into the material bag 5, and places the prepared material bag 5 into a shoe outsole mold positioning block 31 with a size adapted to the material bag 5; injects the shoe outsole material into the shoe outsole mold, and the shoe outsole material generates heat during the molding process. The material bag 5 encounters the heat, expands and explodes, and the paint 54 in the material bag 5 is sprayed out, and a part of the paint 54 is sprayed on the shoe outsole material, and another part of the paint 54 is sprayed on the side mold of the shoe outsole mold. As the shoe outsole material is foamed and molded, the paint 54 reacts with the shoe outsole material and combines together to form an irregular explosion mixed color effect; in this way, the explosion effect of the molded sole each time is irregular, the color fits firmly and is not easy to fall off, there are multiple color layers with unclear boundaries, and each pair of soles has a unique appearance to meet the personalized needs of customers.

Embodiment 2

Other technical solutions are consistent with the first embodiment. The shell of the material bag 5 is made of rubber material. The rubber material bag 5 will also explode during the midsole molding process to form the same appearance effect. However, the rubber material does not fit the polyurethane material of the midsole of the shoe, which affects the physical properties of the shoe.

Embodiment 3

Other technical solutions are consistent with the first embodiment. The mold material channel 4 is a single-hole injection, and the material bag 5 is divided into two front and rear ones. The time interval between the two material bags 5 bursting is relatively long, and the order is uncontrollable, which affects the molding time and has low efficiency.

Embodiment 4

Other technical solutions are consistent with the first embodiment. The shell 51 of the thermoplastic polyurethane rubber package 5 has a thickness of 0.2 mm to 0.25 mm. During the molding process, it is impossible to ensure that the package 5 explodes every time, and occasionally it fails to explode.

Embodiment 5

Other technical solutions are consistent with the first embodiment. The shell 51 of the thermoplastic polyurethane rubber package 5 has a thickness of 0.01 mm to 0.05 mm. This embodiment is easily broken when the paint 54 is loaded and is not operable.

The sole obtained in Example 1 of the present invention, the sole obtained by treating a conventional sole with a Dadong 311A polyurethane material treatment agent and then spraying paint, and the sole obtained by treating a conventional sole with a Dadong 311NT7 treatment agent and then spraying paint were tested for friction and fading resistance. The test results are as follows:

Friction and fading resistance test:

After the conventional polyurethane sole is formed, it is treated with Dadong 311A polyurethane material treatment agent and then painted:

Result: Dry rub: 33 times, wet rub: 29 times, the soles faded and the paint peeled off.

After the conventional polyurethane sole is formed, it is treated with Dadong 311NT7 treatment agent and then painted:

Results: Dry wipe: 45 times, wet wipe: 50 times, paint faded and peeled.

The sole manufactured by the method for manufacturing a shoe sole with an explosive color mixing effect of this embodiment is:

Results: Dry wipe: 55 times, wet wipe 55 times, no fading, no paint peeling.

It is shown that the sole produced by this embodiment has good friction resistance, and the color is firmly attached and not easy to fall off.

This embodiment also relates to a shoe sole manufacturing device having an explosive color mixing effect, the shoe sole manufacturing device comprising:

A sole mold, the sole mold comprising a left mold 1, a right mold 2 and a bottom mold 3, the left mold 1 and the right mold 2 are respectively arranged on the left and right sides of the bottom mold 3, and the shape of the top of the bottom mold 3 is consistent with the shape of the sole; and

The material bag 5 is arranged on the bottom mold 3 through the positioning block 31. The material bag 5 includes a material bag shell 51 and a feeding port 52. The feeding port 52 is arranged on the material bag shell 51. The material bag shell 51 is used to accommodate paint 54. The sole mold is provided with a material channel 4. The material drop point of the material channel 4 is arranged relative to the material bag 5. The material bag shell 51 is made of a material with a low melting point.

In this embodiment, the specific structure of the sole mold can be the sole manufacturing mold disclosed in a sole manufacturing mold and a sole manufacturing device applied for by the applicant in patent publication number CN216578978U.

In this embodiment, the focus of protection is on the material bag 5, which can be set at different positions of the bottom mold 3, and the material bag shell 51 is made of a material with a low melting point, and the specific material can be thermoplastic polyurethane rubber material. As long as it can explode during the injection molding of the outsole material, it is within the protection scope of this embodiment.

According to some embodiments of the present application, the sole manufacturing device optionally includes more than two material bags 5, and the more than two material bags 5 are arranged along the length direction of the bottom mold 3. In this way, the more than two material bags 5 can be set at different positions of the bottom mold 3, and the more than two material bags 5 can be exploded at the same time or separately to form different explosion effects to meet the personalized needs of customers.

According to some embodiments of the present application, optionally, the sole mold 3 is provided with more than two material channels 4, the number of the material channels 4 corresponds to the number of the material bags 5, and the position of each material bag 5 corresponds to a material channel 4 drop point. In this way, through more than two material channels 4, each material bag 5 position corresponds to a material channel 4 drop point, as shown in FIG3, the material bag 5 is located at the drop point of the material channel 4, which is convenient for the material bag 5 to explode. The different lengths of the material channels 4 result in different bursting times of the material bags 5 at different positions, forming a multi-layer color layer with unclear boundaries, further meeting the personalized needs of customers.

According to some embodiments of the present application, optionally, a positioning block 31 is respectively provided on both sides of the material bag 5, and two positioning blocks 31 fix one material bag 5. Thus, in this embodiment, a positioning block 31 is provided on both sides of the material bag 5, and the material of the positioning block 31 can also be a low melting point material. After injection molding, the positioning block 31 remains in the sole. In other embodiments, multiple positioning blocks 31, such as three positioning blocks 31 or four positioning blocks 31, can be used to position the material bag 5 at the same time.

According to some embodiments of the present application, the material bag 5 may further include a feeding valve 53, which is disposed on the material port, and is used to open or close the feeding port 52, and the feeding valve 53 is made of a material with a low melting point. In this embodiment, the material bag 5, the feeding valve 53, and the positioning block 31 are all made of thermoplastic polyurethane rubber. After the material bag 5 is exploded, the material bag 5, the feeding valve 53, and the positioning block 31 are all left in the outsole material. The feeding valve 53 can ensure that the paint 54 in the material bag 5 will not flow out before the material bag 5 is exploded.

As shown in FIG. 3 and FIG. 4 , the paint 54 in the material bag 5 does not need to be filled up, so as to facilitate the blasting of the paint 54 .

In this embodiment, the feeding valve 53 is arranged on the feeding port 52, and the feeding valve 53 is used to open or close the feeding port 52. The feeding valve 53 and the feeding port 52 are made of the same material as the material bag shell 51, and are made of a material with a low melting point. Specifically, the material bag 5, the feeding valve 53, and the feeding port 52 are all made of thermoplastic polyurethane rubber. During the production process of the sole mold, when the temperature exceeds the melting point of the material bag 5 and the feeding valve 53, the material bag 5 explodes, and the feeding valve 53 is also retained in the molded sole.

As shown in Figures 2 and 3, there are three material bags 5 and three material channels 4. The distances between the material bags 5 and the feed port 41 of the material channel 4 are different. The material bag 5 close to the heel of the sole explodes first, then the material bag 5 in the middle of the sole explodes, and finally the material bag 5 at the sole position of the sole explodes, resulting in different bursting times of the material bags 5 at different positions, forming a multi-color layer with unclear boundaries, further meeting the personalized needs of customers.

In this embodiment, the material channel 4 is arranged on any one structure or a combination of multiple structures of the left mold 1, the right mold 2, and the bottom mold 3. In this way, the material channel 4 can be arranged on the left mold 1, the right mold 2, or the bottom mold 3, so as to facilitate feeding into the mold.

One section of the material channel 4 is respectively arranged on the left mold 1 and the right mold 2, and the material channel 4 is provided with a feed port 41, half of which is arranged on the left mold 1, and the other half of which is arranged on the right mold 2. In this way, it is convenient to produce and process the material channel 4, one section of the material channel 4 is partly on the side wall of the left mold 1, and the other section is on the side wall of the right mold 2, and finally the material is fed through the material channel 4 of the bottom mold 3 to complete the feeding of the sole mold.

More than two material channels 4 are arranged in a vertical direction, and the lengths of the more than two material channels 4 are different. In this embodiment, the shoe sole manufacturing equipment is provided with three material bags 5, and the three material bags 5 are arranged in a length direction of the bottom mold 3. The shoe sole manufacturing equipment is provided with three material channels 4, and the three material channels 4 pass through the left mold 1, the right mold 2, and the bottom mold 3 respectively. The three material channels 4 are arranged in a vertical direction, and the lengths of the three material channels 4 are different. As a result, the bursting time of the material bags 5 at different positions is different.

Different from the prior art, the technical solution of the present application is a material bag 5, which is arranged on the bottom mold 3 through a positioning block 31. The material bag 5 includes a material bag shell 51 and a feeding port 52. The feeding port 52 is arranged on the material bag shell 51, and the material bag shell 51 is used to accommodate paint 54. The sole mold is provided with a material channel 4, and the drop point of the material channel 4 is arranged relative to the material bag 5. The material bag shell 51 is made of a material with a low melting point; in this way, in the process of producing soles with the sole mold, the temperature of the sole mold exceeds the melting point of the material bag 5, the material bag 5 explodes, and the paint 54 in the material bag 5 reacts with the outsole material to combine together to form an irregular explosion mixed color effect. The explosion effect of the sole formed each time is irregular, the color fits firmly and is not easy to fall off, there are multiple color layers and the boundaries are not obvious, and each pair of soles has a unique appearance to meet the personalized needs of customers.

It should be noted that the present application is not limited to the above-mentioned embodiments. The above-mentioned embodiments are only examples, and the embodiments having the same structure as the technical idea and exerting the same effect within the scope of the technical solution of the present application are all included in the technical scope of the present application. In addition, without departing from the scope of the main purpose of the present application, various modifications that can be thought of by those skilled in the art to the embodiments and other methods of combining some of the constituent elements in the embodiments are also included in the scope of the present application.

Claims (10)

1. The sole manufacturing method with the explosion color mixing effect is characterized by comprising the following steps of:

Manufacturing a thermoplastic polyurethane rubber bag:

The forming principle of an air cushion is utilized to manufacture a material bag shell with the thickness of a preset size, a charging opening and a charging valve are reserved, and paint with a required color is added into a material bag for standby;

Placing a thermoplastic polyurethane rubber bag:

Placing the manufactured material bag into a mold positioning block with an outsole corresponding to the size of the material bag;

And (3) die closing:

The mold is closed, the outsole material is injected into the outsole mold, heat is generated in the outsole material during the molding process, the material bag encounters heat, expansion blasting is carried out, paint in the material bag is sprayed out, one part of paint is sprayed on the outsole material, the other part of paint is sprayed on the side mold of the outsole mold, and along with foaming molding of the outsole material, the paint and the outsole material react and are combined together to form an irregular explosion color mixing effect;

opening a die:

after the preset time, the outsole material is completely cured, and the mold is opened, so that the sole with the color pattern can be obtained.

2. The method for manufacturing a sole with explosion-color mixing effect according to claim 1, wherein in the step of manufacturing the thermoplastic polyurethane rubber material bag, a material bag shell with a thickness of 0.05mm-0.1mm is manufactured.

3. The method of manufacturing a sole with an explosion-color mixing effect according to claim 1, wherein in the step of closing the mold, the outsole material injected into the outsole mold is a polyurethane material, and the polyurethane material generates heat during the molding process to expand and burst the pack.

4. The method for manufacturing a sole with an explosion-color mixing effect according to claim 1, wherein in the step of placing the thermoplastic polyurethane rubber material pack, two or more positioning blocks are provided on the outsole mold, and two or more material packs are placed on the outsole mold.

5. The method of manufacturing a sole with an explosion-color mixing effect according to claim 4, wherein in the step of closing the mold, the outsole mold is provided with more than two material paths, the lengths of the more than two material paths are different, and the blanking points of the material paths correspond to the positions of the material bags.

6. A sole making apparatus for producing soles with an explosion color mixing effect, the sole making apparatus comprising:

the sole mold comprises a left mold, a right mold and a bottom mold, wherein the left mold and the right mold are respectively arranged at the left side and the right side of the bottom mold, and the shape of the top of the bottom mold is consistent with that of the sole; and

The bottom die comprises a bottom die, and is characterized by comprising a material bag, wherein the material bag is arranged on the bottom die through a positioning block, the material bag comprises a material bag shell and a charging hole, the charging hole is arranged on the material bag shell, the material bag shell is used for containing paint, a sole die is provided with a material channel, a blanking point of the material channel is opposite to the material bag, and the material bag shell is made of a material with a low melting point.

7. The apparatus for producing soles with explosion-color mixing effect according to claim 6, wherein the sole producing apparatus comprises two or more material bags arranged in a longitudinal direction of the bottom mold.

8. The apparatus for producing soles with explosion and color mixing effects according to claim 7, wherein the sole mold is provided with more than two material channels, the number of the material channels corresponds to the number of the material bags, and the position of each material bag corresponds to the blanking point of one material channel.

9. The apparatus for manufacturing soles with explosion and color mixing effects according to claim 6, wherein two sides of the material package are respectively provided with a positioning block, and two positioning blocks fix one material package.

10. The apparatus for producing soles with explosion and color mixing effects according to claim 6, wherein the material bag further comprises a feeding valve, the feeding valve is arranged on the feeding hole, the feeding valve is used for opening or closing the feeding hole, and the feeding valve is made of a material with a low melting point.