Multi-color shoe material preparation method and mold

Abstract

The invention discloses a multicolor shoe material preparation method and mold, and the method comprises the following steps: preparing a mold which comprises an upper mold and a lower mold, the upper mold is internally provided with an upper mold cavity, and the lower mold is internally provided with a lower mold cavity; the surface of the upper mold cavity and the surface of the lower mold cavity are polished to form polished surfaces, the mirror surface effect is formed, a plurality of regularly-arranged grooves are carved in the polished surfaces through laser, light diffraction occurs when incident light makes contact with the grooves, and the multi-color colorful effect is formed on the polished surfaces of the upper mold cavity and the lower mold cavity; raw materials are placed in the mold, the upper mold cavity and the lower mold cavity are filled with the raw materials, the raw materials are formed in the mold, the colorful effect of the surfaces of the upper mold cavity and the lower mold cavity is formed on the surface of the shoe material, and a product is taken out after mold opening to obtain the shoe material with the colorful effect on the surface. In the forming process, the multi-color dazzling effect is directly generated on the surface of the shoe material, follow-up procedure treatment is not needed, efficiency is improved, and cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of shoemaking, in particular to a method for preparing multi-color shoe materials and a mold. Background Art

[0002] In the footwear manufacturing industry, foam soles have been widely used by various shoe manufacturers for the production of complete shoe parts due to their high production efficiency, low cost and reliable quality. At present, with the advancement of fashion trends, there is a strong demand for shoes with various colors in the market. In order to meet market needs, the diversification of sole colors is very important.

[0003] The production of foamed soles is mainly to use a glue injection machine to inject the glue into the mold to form it. The machines for producing soles are of single color, double color and multi-color. The purchase price of single color machines is relatively cheap, while the price of double color and multi-color machines is relatively expensive. Considering the cost of equipment procurement, general shoemaking companies are more likely to configure single color machines. When the orders for double color or multi-color shoes increase, on the one hand, the production capacity pressure is huge, and on the other hand, the single color machines are idle; if more double color or multi-color machines are purchased, because the double color or multi-color machines can only produce double color or multi-color soles, but cannot produce single color soles, when the orders for single color shoes increase and the orders for double color or multi-color shoes decrease, there will be problems of idle machines on the one hand and insufficient production capacity on the other hand. In addition, for multi-color shoe materials, single color can also be formed by mold, and then multi-color forms can be formed by electroplating or film laminating, but this requires additional subsequent processes and reduces production efficiency. In particular, the colorful effect of the upper can often only be formed by silk screen printing, but the printing effect is unnatural and the cost is higher. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a method for preparing a multi-color shoe material and a mold.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A method for preparing a multi-color shoe material comprises the following steps:

[0007] Prepare a mold, the shoe mold is made of metal material, and the mold includes an upper mold and a lower mold, the upper mold has an upper mold cavity, and the lower mold has a lower mold cavity;

[0008] The surfaces of the upper mold cavity and the lower mold cavity are polished to form a polished surface, forming a mirror effect, and a number of regularly arranged grooves are engraved on the polished surface by laser. When the incident light contacts the grooves, light diffraction occurs, so that the polished surfaces of the upper mold cavity and the lower mold cavity form a colorful effect of multiple colors;

[0009] The raw materials are placed in the mold to fill the upper mold cavity and the lower mold cavity. The raw materials are formed in the mold, and the colorful effects on the surfaces of the upper mold cavity and the lower mold cavity are formed on the surface of the shoe material. After the mold is opened, the product is taken out to obtain a shoe material with a colorful surface effect.

[0010] As a further improvement, the raw material is formed in the mold by injection molding.

[0011] As a further improvement, the raw material is formed in the mold by hot pressing.

[0012] As a further improvement, the mold is made of aluminum alloy or stainless steel.

[0013] As a further improvement, when the mold is made of aluminum alloy, nickel is plated on the surface of the upper mold cavity and the lower mold cavity to form a nickel protective layer, and then chrome is plated on the nickel protective layer to form a chromium protective layer, and laser engraving is performed on the chromium protective layer.

[0014] As a further improvement, after the mold is opened and the product is taken out, a nano-varnish protective layer is sprayed on the product surface.

[0015] As a further improvement, the polished surfaces of the upper mold opening and the lower mold opening are formed with at least one pattern by laser engraving.

[0016] As a further improvement, the plurality of regularly arranged grooves are equally distributed.

[0017] A multi-color shoe material preparation mold comprises an upper mold and a lower mold made of metal, wherein an upper mold cavity is arranged in the upper mold, and a lower mold cavity is arranged in the lower mold, and the surfaces of the upper mold cavity and the lower mold cavity are polished to form a polished surface, and a plurality of parallel grooves are engraved on the polished surface by laser, and diffraction is formed by incident light contacting the grooves so that the polished surface forms a colorful surface with different colors.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] By setting a colorful effect on the surface of the mold cavity, since the colorful effect is formed by the laser through the engraved groove, diffraction will occur when the laser is incident on the groove, thereby forming a colorful effect. There is no need to form the colorful effect through printing or other methods, so that the mold can be reused. Through injection molding or hot pressing, during the molding process, the colorful effect of the cavity is directly molded on the surface of the shoe material. There is no need for subsequent electroplating or other treatments to obtain a shoe material with a variety of color effects on the surface, thereby improving efficiency and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the lower mold structure of the present invention;

[0021] Figure 2 A schematic diagram of a colorful effect on a mold in one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the effect of the product prepared by the present invention. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like are involved, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which 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 specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] refer to Figure 1 and 2As shown, a multi-color shoe material preparation mold includes an upper mold and a lower mold 1 made of metal, an upper mold cavity is provided in the upper mold, and a lower mold cavity 2 is provided in the lower mold 1. The surfaces of the upper mold cavity and the lower mold cavity 2 are polished to form a polished surface, and a plurality of parallel grooves are engraved on the polished surface by laser. The incident light contacts the grooves to form diffraction so that the polished surface forms a colorful surface 3 with different colors. The colorful surface 3 can be used for a long time and formed multiple times. When the laser is engraved, the grooves can be distributed vertically or horizontally, and the depth of the grooves is set according to the size of the mold. When the incident laser is shot at the grooves, the angles are different, so that diffraction occurs, thereby forming a colorful texture effect.

[0027] refer to Figure 1 As shown, a method for preparing a multi-color shoe material comprises the following steps:

[0028] Prepare a mold, which is made of metal material. The mold includes an upper mold and a lower mold 1. The upper mold has an upper mold cavity, and the lower mold 1 has a lower mold cavity 2.

[0029] The surfaces of the upper mold cavity and the lower mold cavity are polished to form a polished surface, forming a mirror effect, and a number of regularly arranged grooves are engraved on the polished surface by laser. When the incident light contacts the grooves, light diffraction occurs, so that the polished surfaces of the upper mold cavity and the lower mold cavity form a colorful effect of multiple colors, forming a colorful surface 3. The grooves can be distributed in parallel, or there can be grooves in different areas distributed horizontally and vertically at the same time, so that the colorful effect formed is diversified.

[0030] The raw materials are placed in the mold, filling the upper mold cavity and the lower mold cavity, the raw materials are formed in the mold, the colorful effects on the surface of the upper mold cavity and the lower mold cavity are formed on the surface of the shoe material, and the product is taken out after the mold is opened to obtain the shoe material with a colorful effect on the surface. Since the colorful effect is formed by laser engraving on the surface of the upper mold cavity and the lower mold cavity instead of printing, it can be reused, and the colorful texture effect surface formed by laser engraving is formed as a part of the mold, so it can be directly formed on the surface of the shoe material without causing the colorful effect surface on the mold to fall off.

[0031] The mold is made of aluminum alloy or stainless steel, and different materials can have different molding methods. When the mold is made of aluminum alloy, it is polished and then electroplated. Nickel is used as the material for electroplating to form a nickel protective layer, which can form a mirror effect, and then a chrome protective layer is plated to protect the subsequent laser engraving.

[0032] When the raw material is formed in the mold, it is formed by injection molding or hot pressing.

[0033] When the mold is made of aluminum alloy, hot pressing or injection molding can be selected to form the shoe material. When the mold is made of stainless steel, only injection molding can be selected to form a colorful effect on the surface of the shoe material.

[0034] When the mold is made of aluminum alloy, nickel is plated on the surfaces of the upper mold cavity and the lower mold cavity to form a nickel protective layer, and then chrome is plated on the nickel protective layer to form a chromium protective layer, and laser engraving is performed on the chromium protective layer.

[0035] After the mold is opened and the product is taken out, a protective layer of nano-varnish is sprayed on the surface of the product to prevent it from being damaged.

[0036] The polished surfaces of the upper mold opening and the lower mold opening are formed with at least one pattern by laser engraving. By forming the pattern by laser engraving according to a preset path, a specific pattern effect can be formed on the surface of the shoe material.

[0037] In addition, during the molding process, the temperature can be set according to conventional settings, such as the heating temperature of the injection device is 90-110°C; the cooling temperature of the cooling device is 0-5°C. The heating molding temperature is 160-180°C, and the cooling setting temperature is 0-5°C.

[0038] refer to Figure 3 The surface of the prepared shoe material has a colorful effect composed of multiple colors. The present invention mainly utilizes the colorful effect formed by laser engraving on the mold, and directly forms a multi-color colorful effect on the surface of the shoe material during the shoe material forming process, eliminating the subsequent printing or electroplating process.

[0039] It should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing multi-color shoe materials, characterized in that: The following steps are involved: Prepare a mold, the shoe mold is made of metal material, and the mold includes an upper mold and a lower mold, the upper mold has an upper mold cavity, and the lower mold has a lower mold cavity; The surfaces of the upper mold cavity and the lower mold cavity are polished to form a polished surface, forming a mirror effect, and a number of regularly arranged grooves are engraved on the polished surface by laser. When the incident light contacts the grooves, light diffraction occurs, so that the polished surfaces of the upper mold cavity and the lower mold cavity form a colorful effect of multiple colors; The raw materials are placed in the mold to fill the upper mold cavity and the lower mold cavity. The raw materials are formed in the mold, and the colorful effects on the surfaces of the upper mold cavity and the lower mold cavity are formed on the surface of the shoe material. After the mold is opened, the product is taken out to obtain a shoe material with a colorful texture effect on the surface.

2. The method for preparing multicolor shoe materials according to claim 1, characterized in that: When the raw material is formed in the mold, injection molding is adopted.

3. The method for preparing multicolor shoe materials according to claim 1, characterized in that: When the raw material is formed in the mold, a hot pressing method is adopted.

4. The method for preparing multicolor shoe materials according to claim 1, characterized in that: The mold is made of aluminum alloy or stainless steel.

5. The method for preparing multicolor shoe materials according to claim 4, characterized in that: When the mold is made of aluminum alloy, nickel is plated on the surfaces of the upper mold cavity and the lower mold cavity to form a nickel protective layer, and then chrome is plated on the nickel protective layer to form a chromium protective layer, and laser engraving is performed on the chromium protective layer.

6. The method for preparing multicolor shoe materials according to claim 1, characterized in that: After the mold is opened and the product is taken out, a nano-varnish protective layer is sprayed on the surface of the product.

7. The method for preparing multicolor shoe materials according to claim 1, characterized in that: The polished surfaces of the upper mold opening and the lower mold opening are formed with at least one pattern by laser engraving.

8. The method for preparing multicolor shoe materials according to claim 1, characterized in that: The plurality of regularly arranged grooves are equally distributed.

9. A multi-color shoe material preparation mold, characterized in that: It includes an upper mold and a lower mold made of metal. The upper mold is provided with an upper mold cavity, and the lower mold is provided with a lower mold cavity. The surfaces of the upper mold cavity and the lower mold cavity are polished to form polished surfaces. A number of parallel grooves are engraved on the polished surface by laser. The incident light contacts the grooves to form diffraction, so that the polished surface forms a colorful surface with different colors.

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