Shoe material forming die

Abstract

The utility model discloses a shoe material forming mold which comprises an upper mold, a lower mold and a middle mold, the middle mold is detachably arranged at the top of the lower mold, a mold core is arranged on the lower mold, a first mold cavity is formed in the middle mold, an injection mold cavity used for injection molding of a lower shoe material is defined by the mold core and the first mold cavity, and the upper mold is movably arranged above the lower mold through a driving device. The upper mold is provided with a second cavity, the mold core and the second cavity enclose to form a shaping cavity used for placing an upper shoe material and a lower shoe material up and down and shaping the upper shoe material and the lower shoe material, and the upper mold is connected with a heating device; thus, after the lower shoe material is formed in the injection mold cavity, the upper shoe material is stacked on the lower shoe material, the upper mold and the lower mold are combined, and the upper shoe material and the lower shoe material are subjected to thermal forming assembly treatment, so that the use time of the mold and the processing time of the product are reduced, the production efficiency of the product is improved, meanwhile, the lower shoe material has a certain temperature on the lower mold, and the production efficiency of the product is improved. And the quality of finished products after subsequent thermal forming assembly treatment is guaranteed, and the application range is wide.

Description

Technical Field

[0001] The invention relates to the technology of shoe-making field, in particular to a shoe material forming mould. Background Art

[0002] At present, shoes are a tool for people to protect their feet from injuries. With the development of the shoemaking industry, shoes of various styles and functions can be seen everywhere. After nearly 20 years of development, China's shoemaking industry has established a complete upstream and downstream industrial chain with its high-quality investment environment and advantages in labor resources, forming industrial clusters for the production of various types of shoes, and establishing a complete market for finished shoes and shoe materials, as well as research and development centers and information centers for shoes. Shoes generally include an upper and a sole connected to the upper. The shoemaking process mainly includes sole molding, composite upper and lining, connection between upper and sole, painting, waxing and other processes.

[0003] In the existing shoemaking process, the sole usually includes an upper shoe material and a lower shoe material, and the upper shoe material and the lower shoe material are respectively injection molded through two injection molds, and then the upper shoe material and the lower shoe material are transferred to a thermoforming mold, and the molding surface of the upper shoe material used for molding with the lower shoe material is firstly further coated with glue, and then the molding surface of the upper shoe material is correspondingly molded with the lower shoe material, and the molded upper shoe material and the lower shoe material are placed in a thermoforming mold for thermoforming assembly operation; however, the processing steps of the sole molding are relatively cumbersome, and the processing time is long, which reduces the efficiency of the sole molding, and because the upper shoe material and the lower shoe material are both at a low temperature during molding, when the two are placed in the thermoforming mold for thermoforming assembly after molding, it takes a certain amount of time for the temperature of the two to reach the corresponding temperature before they can be molded together, which further prolongs the processing time of the sole molding, cannot meet the user's use needs, and has a small scope of application.

[0004] Therefore, it is necessary to study a new technical solution to solve the above problems. Summary of the invention

[0005] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a shoe material forming mold, which forms a lower shoe material in an injection mold cavity, and then forms an upper shoe material that has been coated with glue on the lower shoe material, and then the upper mold and the lower mold are combined and the upper and lower shoe materials are hot-formed and assembled, thereby reducing the use of molds and product processing time, improving product production efficiency, meeting user usage needs, and having a wide range of applications.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A shoe material forming mold comprises an upper mold, a lower mold and a middle mold, wherein the middle mold is detachably arranged on the top of the lower mold, the lower mold is provided with a core, the middle mold is provided with a first cavity, the core and the first cavity surround an injection mold cavity for injection molding the lower shoe material, the upper mold is movably arranged above the lower mold through a driving device, the middle mold is located between the upper mold and the lower mold, the upper mold is provided with a second cavity, the core and the second cavity surround a molding cavity for placing upper and lower shoe materials and molding them, and the upper mold is connected to a heating device.

[0008] As a preferred solution, a first protrusion is provided at the upper end of the lower mold, and a groove matching the first protrusion is provided at the lower end of the upper mold and the lower end of the middle mold. The first protrusion is adapted to be positioned in the corresponding groove to achieve connection and positioning between the lower mold and the middle mold, and between the lower mold and the upper mold.

[0009] As a preferred solution, a second protrusion is provided at the upper end of the middle mold, and the second protrusion is adapted to be positioned in the groove of the upper mold to achieve connection and positioning between the upper mold and the middle mold.

[0010] As a preferred solution, there are three first protrusions and three second protrusions, and the three first protrusions and the three second protrusions are arranged in a triangular shape at the upper end of the middle mold and the upper end of the lower mold respectively; correspondingly, there are three grooves, and the three grooves are arranged in a triangular shape at the lower end of the middle mold and the lower end of the upper mold respectively.

[0011] As a preferred solution, the first protrusion and the second protrusion are both in a trapezoidal structure that is gradually reduced from bottom to top.

[0012] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it is mainly through the design of various components that after the lower shoe material is formed in the injection mold cavity, the upper shoe material is stacked on the lower shoe material, and then the upper mold and the lower mold are combined to perform thermoforming and assembly processing on the upper shoe material and the lower shoe material, thereby reducing the use of molds and the processing time of products, and improving the production efficiency of products. At the same time, after the lower shoe material is formed, it has a certain temperature on the lower mold, which improves the molding effect of the upper shoe material and the lower shoe material during molding, thereby ensuring the quality of the finished product after the subsequent thermoforming and assembly processing. The structural design is ingenious and reasonable, meets the use needs of users, and has a wide range of applications.

[0013] In addition, the setting of the first protrusion and the groove is conducive to the connection and positioning between the lower mold and the middle mold and the upper mold, ensuring the mold closing effect. At the same time, the setting of the second protrusion enables the upper mold to be pressed onto the middle mold when the middle mold is assembled on the lower mold to improve the connection effect between the middle mold and the lower mold, thereby ensuring the molding effect of the lower shoe material in the injection mold cavity and having good usability.

[0014] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of an upper mold, a middle mold, and a lower mold according to an embodiment of the present invention;

[0016] Figure 2 It is another angle structural schematic diagram of the upper mold, middle mold and lower mold of an embodiment of the present invention.

[0017] Description of the accompanying drawings:

[0018] 11. Upper mold 111. Second cavity

[0019] 12. Lower mold 121, core

[0020] 122, first protrusion 13, middle mold

[0021] 131, first cavity 132, second protrusion

[0022] 14. Groove. DETAILED DESCRIPTION

[0023] Please refer to Figure 1 to Figure 2 As shown, it shows the specific structure of an embodiment of the present invention.

[0024] A shoe material forming mold, comprising an upper mold 11, a lower mold 12 and a middle mold 13, wherein the middle mold 13 is detachably arranged on the top of the lower mold 12, the lower mold 12 is provided with a core 121, the middle mold 13 is provided with a first cavity 131, the core 121 and the first cavity 131 are surrounded to form an injection mold cavity for injection molding the lower shoe material, the lower mold 12 is provided with a pouring system, the upper mold 11 is movably arranged above the lower mold 12 through a driving device (not shown in the figure), the middle mold 13 is located between the upper mold 11 and the lower mold 12, the upper mold 11 is provided with a second cavity 111, the core 121 and the second cavity 111 are surrounded to form a useful The upper shoe material and the lower shoe material are placed on the upper and lower mold cavities for shaping, and the upper mold 11 is connected to a heating device (not shown in the figure); in this way, through the design of various components, after the lower shoe material is formed in the injection mold cavity, the upper shoe material is stacked on the lower shoe material, and then the upper mold and the lower mold are closed and the upper shoe material and the lower shoe material are subjected to hot forming and assembly treatment, which reduces the use of molds and the processing time of products, and improves the production efficiency of products. At the same time, after the lower shoe material is formed, it has a certain temperature on the lower mold, which improves the molding effect of the upper shoe material and the lower shoe material during molding, thereby ensuring the quality of the finished product after the subsequent hot forming and assembly treatment. The structural design is ingenious and reasonable, meets the user's use needs, and has a wide range of applications.

[0025] In addition, a first protrusion 122 is provided at the upper end of the lower mold 12, and a groove 14 matching the first protrusion is provided at the lower end of the upper mold 11 and the lower end of the middle mold 13. The first protrusion 122 is adapted to be positioned in the corresponding groove 14 to achieve the connection and positioning between the lower mold 12 and the middle mold 13, and between the lower mold 12 and the upper mold 11. This is beneficial to the connection and positioning between the lower mold and the middle mold, and the upper mold, and ensures the mold clamping effect.

[0026] In addition, a second protrusion 132 is provided at the upper end of the middle mold 13, and the second protrusion 132 is adapted to be positioned in the groove 14 of the upper mold 11 to realize the connection and positioning between the upper mold 11 and the middle mold 14. Here, three first protrusions 122 and three second protrusions 132 are provided, and the three first protrusions 122 and the three second protrusions 132 are arranged in a triangular shape at the upper end of the middle mold 13 and the upper end of the lower mold 12 respectively; correspondingly, three grooves 14 are provided, and the three grooves 14 are arranged in a triangular shape at the lower end of the middle mold 13 and the lower end of the upper mold 11 respectively. Preferably, the first protrusion 122 and the second protrusion 132 are both in a trapezoidal structure that is gradually reduced from bottom to top. In this way, the setting of the second protrusion enables the upper mold to be pressed onto the middle mold when the middle mold is assembled on the lower mold to improve the connection effect between the middle mold and the lower mold, thereby ensuring the molding effect of the lower shoe material in the injection mold cavity, and having good usability.

[0027] A shoe material forming process comprises the following steps:

[0028] Step 1: Prepare the shoe materials;

[0029] Step 2: Assemble the middle mold on the lower mold, and injection mold the lower shoe material on the injection mold cavity;

[0030] Step 3: Remove the middle mold and stack the upper shoe material on the lower shoe material;

[0031] Step 4: Control the displacement of the upper mold and close the mold with the lower mold, so that the upper shoe material and the lower shoe material stacked up and down are positioned in the fixed mold cavity;

[0032] Step 5: The upper shoe material and the lower shoe material in the molding cavity are heated by a heating device so that the upper shoe material and the lower shoe material are bonded and fixed together;

[0033] Step 6: Stop the heating device, control the upper mold to leave the lower mold, and then take out the finished sole.

[0034] In this embodiment, in step four, when the upper shoe material and the lower shoe material are formed, the temperature of the lower shoe material is controlled between 90 degrees and 230 degrees. It should be noted that the temperature of the lower shoe material refers to the temperature remaining on the lower mold for a certain period of time after the lower shoe material is injection molded. Preferably, the temperature of the lower shoe material is 170 degrees, and, in step two, the upper mold is pressed onto the middle mold.

[0035] And, in step three, a glue coating process is performed on the overlapping surface between the upper shoe material and the lower shoe material, and when the heating process is performed, the overlapping surfaces of the upper shoe material and the lower shoe material coated with glue are bonded to form;

[0036] Alternatively, a volatile material is provided on the overlapping surface between the upper shoe material and the lower shoe material to form at least one coating area. When subjected to a heat treatment, the volatile material becomes a gas and evaporates, and the corresponding overlapping relative positions between the upper shoe material and the lower shoe material cannot form adhesion, while the remaining non-coating areas are correspondingly bonded and formed up and down, so that a bubble-like cavity is formed at the corresponding overlapping relative positions between the upper shoe material and the lower shoe material; preferably, the volatile material is a liquid such as an oily paint or an oily glue, or the volatile material is a volatile solid such as dry ice; so that a bubble-like cavity is formed at the corresponding coating area between the upper shoe material and the lower shoe material.

[0037] It should be noted that the upper shoe material and the lower shoe material are both foamed parts, and the upper shoe material and the lower shoe material are both EVA foam base materials or rubber foam base materials; or, the upper shoe material and the lower shoe material are both injection molded parts.

[0038] The design emphasis of the present invention lies in that, mainly through the design of each component, after the lower shoe material is formed in the injection mold cavity, the upper shoe material is stacked on the lower shoe material, and then the upper mold and the lower mold are molded together and the upper shoe material and the lower shoe material are subjected to thermoforming and assembly treatment, thereby reducing the use of molds and the processing time of products, and improving the production efficiency of products. At the same time, after the lower shoe material is formed, it has a certain temperature on the lower mold, which improves the molding effect of the upper shoe material and the lower shoe material during molding, thereby ensuring the quality of the finished product after the subsequent thermoforming and assembly treatment. The structural design is ingenious and reasonable, meets the use needs of users, and has a wide range of applications.

[0039] In addition, the setting of the first protrusion and the groove is conducive to the connection and positioning between the lower mold and the middle mold and the upper mold, ensuring the mold closing effect. At the same time, the setting of the second protrusion enables the upper mold to be pressed onto the middle mold when the middle mold is assembled on the lower mold to improve the connection effect between the middle mold and the lower mold, thereby ensuring the molding effect of the lower shoe material in the injection mold cavity and having good usability.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A shoe material forming mold, characterized in that: The invention comprises an upper mould, a lower mould and a middle mould, wherein the middle mould is detachably arranged on the top of the lower mould, the lower mould is provided with a core, the middle mould is provided with a first cavity, the core and the first cavity surround an injection mould cavity for injection moulding the lower shoe material, the upper mould is movably arranged above the lower mould through a driving device, the middle mould is located between the upper mould and the lower mould, the upper mould is provided with a second cavity, the core and the second cavity surround a mould cavity for placing the upper shoe material and the lower shoe material up and down and shaping them, and the upper mould is connected with a heating device.

2. A shoe material forming mold according to claim 1, characterized in that: The upper end of the lower mold is provided with a first protrusion, and the lower ends of the upper mold and the middle mold are both provided with grooves matching the first protrusion. The first protrusion is adapted to be positioned in the corresponding groove to achieve connection and positioning between the lower mold and the middle mold, and between the lower mold and the upper mold.

3. A shoe material forming mold according to claim 2, characterized in that: The upper end of the middle die is provided with a second protrusion, and the second protrusion is adapted to be positioned in the groove of the upper die to achieve connection and positioning between the upper die and the middle die.

4. A shoe material forming mold according to claim 3, characterized in that: There are three first protrusions and three second protrusions, which are arranged in a triangular shape at the upper end of the middle mold and the upper end of the lower mold respectively; correspondingly, there are three grooves, which are arranged in a triangular shape at the lower end of the middle mold and the lower end of the upper mold respectively.

5. A shoe material forming mold according to claim 3, characterized in that: The first protrusion and the second protrusion are both in a trapezoidal structure that is gradually reduced from bottom to top.

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