Composite sole forming mold
By designing a composite sole molding die, the cold blank is precisely fixed using a cold blank positioning structure and a hanging mold fixing component, which solves the problem of various performance requirements of sole materials and improves the durability and service life of the sole.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUALI IND GRP CO LTD
- Filing Date
- 2025-03-07
- Publication Date
- 2026-04-21
AI Technical Summary
In existing technologies, it is difficult for shoe sole materials to simultaneously meet the requirements of multiple properties such as wear resistance, water resistance, oil resistance, heat resistance, pressure resistance, impact resistance, and good elasticity. Moreover, the bonding and combination methods are costly and prone to delamination.
A composite shoe sole forming mold is adopted, which forms a forming cavity by combining an upper mold and a lower mold. The cold blank is initially positioned by a cold blank positioning structure and then positioned secondary by a hanging mold fixing component to achieve precise fixation of the cold blank. Combined with the segmented design of different materials in different positions of the shoe sole, one-piece molding is achieved.
It improves the durability and lifespan of composite soles, reduces scrap rates, and enhances molding precision and product quality.
Smart Images
Figure CN224145226U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, and in particular to a composite shoe sole forming mold. Background Technology
[0002] The construction of shoe soles is quite complex, typically including all the materials that make up the bottom, such as the outsole, midsole, and heel. Generally, sole materials need to possess a variety of properties, including abrasion resistance, water resistance, oil resistance, heat resistance, pressure resistance, impact resistance, good elasticity, and being ultra-soft and ultra-lightweight. However, a single material often cannot simultaneously meet these diverse requirements. To achieve multiple properties, it is usually necessary to fuse two or more materials into a single sole to adapt to the specific needs of different parts. Currently, the common practice is to glue together multiple components of different materials to form the sole, but this method has problems such as high cost and a tendency for the glue to come undone. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a composite shoe sole molding die, which improves the robustness of the composite shoe sole and extends its service life.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A composite shoe sole forming mold includes an upper mold and a lower mold, which are combined to form a forming cavity. The bottom side of the forming cavity of the lower mold is provided with a cold blank positioning structure for placing a cold blank, and the upper mold is provided with a hanging mold fixing component for fixing the cold blank. Before the mold is closed, the cold blank positioning structure is used to initially position the cold blank; when the mold is closed, the hanging mold fixing component is used to reposition the cold blank.
[0006] According to some embodiments of the present invention, the cold blank includes a front foot cold blank located on the front side and a heel cold blank located on the rear side.
[0007] According to some embodiments of the present invention, the cold blank positioning structure includes a limiting protrusion that matches the shape of the outer edge of the cold blank and a limiting groove that matches the shape of the bottom of the cold blank.
[0008] According to some embodiments of the present invention, the hanging mold fixing assembly includes a butterfly plate movably connected to the upper mold, a guide structure disposed on the butterfly plate that extends downward through the upper mold, and a fixing block disposed on the butterfly plate that extends downward through the upper mold. When the mold is closed, the fixing block abuts against the cold blank, and the guide structure abuts against the lower mold.
[0009] According to some embodiments of the present invention, the upper mold is provided with a movable groove that matches the butterfly plate, the bottom of the movable groove is provided with a guide post, the butterfly plate is provided with a guide groove that matches the guide post, and the butterfly plate slides up and down in the movable groove under the guidance of the guide post.
[0010] According to some embodiments of the present invention, the guide structure includes a guide rod fixed on the butterfly plate and slidably connected to the upper mold, a limiting block disposed at the bottom of the guide rod, and a spring structure sleeved on the outside of the guide rod. The bottom of the spring structure abuts against the limiting block, and when the mold is closed, the top of the spring structure abuts against the upper mold.
[0011] According to some embodiments of the present invention, the bottom of the upper mold is provided with a first spring groove for accommodating the spring structure, and the lower mold is provided with a second spring groove for accommodating the spring structure.
[0012] According to some embodiments of the present invention, pads are placed in both the first spring groove and the second spring groove.
[0013] According to some embodiments of the present invention, the fixing block includes an abutting part for abutting and pressing the cold blank and a connecting part for connecting with the butterfly plate. When the mold is closed, the top surface of the abutting part abuts against the bottom of the upper mold, and the bottom surface of the abutting part abuts against the cold blank.
[0014] According to some embodiments of the present invention, the bottom of the fixing block is provided with anti-slip texture.
[0015] This utility model has at least the following beneficial effects:
[0016] By placing the cold-formed material into a shoe mold and then injecting the outer ring material of the sole, a composite sole is formed in one piece, greatly improving the sturdiness and lifespan of the footwear. The cold-formed material is initially positioned by a cold-formed positioning structure and then secondary positioned by a hanging mold fixing component, ensuring precise positioning while preventing the mold from washing away the cold-formed material during injection. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0018] Figure 2 This is a cross-sectional view of the mold opening state according to an embodiment of the present invention;
[0019] Figure 3 This is a cross-sectional view of the mold-closed state according to an embodiment of the present invention. Detailed Implementation
[0020] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.
[0021] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.
[0023] An embodiment of this utility model provides a composite shoe sole molding die, such as... Figure 1-3 As shown, the mold includes an upper mold 101 and a lower mold 102. The upper mold 101 and the lower mold 102 are combined to form a molding cavity 103. The bottom side of the molding cavity 103 of the lower mold 102 is provided with a cold blank positioning structure 301 for placing the cold blank 2. The upper mold 101 is provided with a hanging mold fixing component 401 for fixing the cold blank 2. Before the mold is closed, the cold blank positioning structure 301 is used to initially position the cold blank 2. When the mold is closed, the hanging mold fixing component 401 is used to position the cold blank 2 a second time.
[0024] The composite sole, originally assembled using a glued-on method, is now molded as a single piece by placing the cold blank 2 material into the shoe's perimeter mold. This significantly improves the shoe's durability and extends its lifespan. The cold blank 2 is initially positioned by the cold blank positioning structure 301 and then secondary positioned by the hanging mold fixing component 401, improving the precision of the integral molding of the cold blank 2 and the sole. Before mold closing, the cold blank positioning structure 301 accurately positions the cold blank 2 into the molding cavity 103 of the lower mold 102, reducing displacement during molding and improving molding accuracy. During mold closing, the hanging mold fixing component 401 presses and fixes the cold blank 2, further enhancing its stability and preventing it from being washed away when the mold injects material, further improving the sole molding precision and reducing the scrap rate.
[0025] In some embodiments, such as Figure 1 As shown, the cold blank 2 includes a front foot cold blank 201 located on the front side and a heel cold blank 202 located on the rear side.
[0026] The segmented design can meet the different needs of different parts of the sole. The perimeter of the sole is made of high-hardness, wear-resistant, and impact-resistant materials, while the forefoot and heel areas use low-hardness, ultra-soft, ultra-lightweight, and highly elastic shock-absorbing materials.
[0027] In some embodiments, such as Figure 1 , 3 As shown, the cold blank positioning structure 301 includes a limiting protrusion 302 that matches the shape of the outer edge of the cold blank 2 and a limiting groove 303 that matches the shape of the bottom of the cold blank 2.
[0028] In practice, the limiting groove 303 matches the anti-slip texture pattern on the bottom of the cold blank 2, which can further fit the shoe and prevent displacement. The limiting protrusion 302 matches the protrusion on the outer edge of the cold blank 2, but is not higher than the height of the protrusion. The outer edge of the cold blank 2 has the function of positioning and connecting with other parts for molding.
[0029] In some embodiments, such as Figure 2-3 As shown, the hanging mold fixing assembly 401 includes a butterfly plate 402 movably connected to the upper mold 101, a guide structure 403 disposed on the butterfly plate 402 that extends downward through the upper mold 101, and a fixing block 404 disposed on the butterfly plate 402 that extends downward through the upper mold 101. When the mold is closed, the fixing block 404 abuts against the cold blank 2, and the guide structure 403 abuts against the lower mold 102.
[0030] The butterfly plate 402, together with the fixing block 404, presses or separates the cold blank 2 under the guidance of the guide structure 403. The guide structure 403 makes the movement of the butterfly plate 402 more stable and smooth during the mold opening and closing process, avoiding deformation or damage to the cold blank 2 due to the impact force during mold closing, and further ensuring the molding quality. At the same time, it can achieve precise positioning and stable fixation of the cold blank 2, ensuring that the cold blank 2 will not be displaced during the molding process, thereby improving molding accuracy and product quality.
[0031] Furthermore, the upper mold 101 is provided with a movable groove 405 that matches the butterfly plate 402. The bottom of the movable groove 405 is provided with a guide post 406. The butterfly plate 402 is provided with a guide groove that matches the guide post 406. The butterfly plate 402 slides up and down in the movable groove 405 under the guidance of the guide post 406.
[0032] The guide post 406 can guide the middle part of the butterfly plate 402, improve the stability of the fixing block 404 in the middle of the butterfly plate 402 when it moves up and down, improve the pressing accuracy, and thus improve the molding accuracy and product quality.
[0033] Furthermore, the guide structure 403 includes a guide rod 407 fixed on the butterfly plate 402 and slidably connected to the upper mold 101, a limiting block 408 disposed at the bottom of the guide rod 407, and a spring structure 409 sleeved on the outside of the guide rod 407. The bottom of the spring structure 409 abuts against the limiting block 408, and when the mold is closed, the top of the spring structure 409 abuts against the upper mold 101.
[0034] When the mold is closed, the limiting block 408 at the bottom of the guide rod 407 abuts against the lower mold 102. At the same time, the upper mold 101 presses the spring structure 409 toward the limiting part. Using the elastic force of the spring structure 409, the fixing block 404 on the butterfly plate 402 is further pressed against the bottom of the upper mold 101 to ensure that the bottom of the fixing block 404 is flush with the bottom of the lower mold 102, thus ensuring molding accuracy and increasing molding stability.
[0035] Furthermore, the bottom of the upper mold 101 is provided with a first spring groove 410 for accommodating the spring structure 409, and the lower mold 102 is provided with a second spring groove 411 for accommodating the spring structure 409.
[0036] When the mold is closed, the limiting part is inserted into the second spring groove 411, and the top surface of the first spring groove 410 abuts against the top surface of the spring structure 409 and compresses the spring structure 409. The setting of the first spring groove 410 and the second spring groove 411 can further improve the stability of the guide rod 407, while compressing the mold space and reducing costs.
[0037] Furthermore, a pad 412 is placed in both the first spring groove 410 and the second spring groove 411.
[0038] The 412 pad can effectively reduce wear and improve mold life.
[0039] Furthermore, such as Figure 2-3 As shown, the fixing block 404 includes an abutting part 413 for abutting and pressing the cold blank 2 and a connecting part 414 for connecting with the butterfly plate 402. When the mold is closed, the top surface of the abutting part 413 abuts against the bottom of the upper mold 101, and the bottom surface of the abutting part 413 abuts against the cold blank 2.
[0040] The connecting part 414 is responsible for connecting with the butterfly plate 402, and the abutting part 413 is used to abut with the cold blank 2 and also to abut with the upper mold 101, so that the upper mold 101 and the fixing block 404 can be further aligned and pressed together, thereby improving the molding accuracy.
[0041] Furthermore, the bottom of the fixing block 404 is provided with anti-slip texture.
[0042] The anti-slip texture increases the friction between the fixing block 404 and the cold blank 2, ensuring the stability of the cold blank 2 during the pressing process.
[0043] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art will understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined in the appended claims and their equivalents.
Claims
1. A composite shoe sole forming mold, characterized in that, include: An upper mold (101) and a lower mold (102) are combined to form a molding cavity (103). The bottom side of the molding cavity (103) of the lower mold (102) is provided with a cold blank positioning structure (301) for placing the cold blank (2). The upper mold (101) is provided with a hanging mold fixing component (401) for fixing the cold blank (2). Before the mold is closed, the cold blank positioning structure (301) is used to initially position the cold blank (2). When the mold is closed, the hanging mold fixing component (401) is used to position the cold blank (2) a second time.
2. The composite shoe sole forming mold according to claim 1, wherein: The cold blank (2) includes a front foot cold blank (201) located on the front side and a heel cold blank (202) located on the rear side.
3. A composite sole forming mold according to any one of claims 1-2, characterized in that: The cold blank positioning structure (301) includes a limiting protrusion (302) that matches the shape of the outer edge of the cold blank (2) and a limiting groove (303) that matches the shape of the bottom of the cold blank (2).
4. The composite shoe sole forming mold according to any one of claims 1 to 2, characterized in that: The hanging mold fixing assembly (401) includes a butterfly plate (402) movably connected to the upper mold (101), a guide structure (403) disposed on the butterfly plate (402) extending downward through the upper mold (101), and a fixing block (404) disposed on the butterfly plate (402) extending downward through the upper mold (101). When the mold is closed, the fixing block (404) abuts against the cold blank (2), and the guide structure (403) abuts against the lower mold (102).
5. The composite shoe sole forming mold according to claim 4, wherein: The upper mold (101) is provided with a movable groove (405) that matches the butterfly plate (402). The bottom of the movable groove (405) is provided with a guide post (406). The butterfly plate (402) is provided with a guide groove that matches the guide post (406). The butterfly plate (402) slides up and down in the movable groove (405) under the guidance of the guide post (406).
6. The composite shoe sole forming mold according to claim 4, wherein: The guide structure (403) includes a guide rod (407) fixed on the butterfly plate (402) and slidably connected to the upper mold (101), a limiting block (408) disposed at the bottom of the guide rod (407), and a spring structure (409) sleeved on the outside of the guide rod (407). The bottom of the spring structure (409) abuts against the limiting block (408), and when the mold is closed, the top of the spring structure (409) abuts against the upper mold (101).
7. The composite shoe sole forming mold according to claim 6, wherein: The bottom of the upper mold (101) is provided with a first spring groove (410) for accommodating the spring structure (409), and the lower mold (102) is provided with a second spring groove (411) for accommodating the spring structure (409).
8. The composite shoe sole forming mold according to claim 7, wherein: A pad (412) is placed in both the first spring groove (410) and the second spring groove (411).
9. The composite shoe sole forming mold according to claim 4, wherein: The fixing block (404) includes an abutting part (413) for abutting and pressing the cold blank (2) and a connecting part (414) for connecting with the butterfly plate (402). When the mold is closed, the top surface of the abutting part (413) abuts against the bottom of the upper mold (101), and the bottom surface of the abutting part (413) abuts against the cold blank (2).
10. The composite shoe sole forming mold according to claim 4, wherein: The bottom of the fixing block (404) is provided with anti-slip texture.