Molding die for sole surrounding edge
By combining the movable mold, upper mold, and lower mold to form an extrusion molding cavity, the problems of low yield and poor texture in the molding of shoe sole edging are solved, achieving efficient molding and high-quality shoe sole edging production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUIAN HONGRE SHOES CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, the molding process for the sole edge is difficult to effectively bond the edge texture to the sole body, resulting in low yield and poor texture.
The extrusion molding cavity is formed by the use of a movable die, an upper die, and a lower die. The movable die provides pressure, and the long strip-shaped opening edge line coincides with the edge line of the movable die to form an extrusion molding, avoiding the generation of waste. The middle of the pressing part is arched to facilitate the bending of the surrounding edge, and the positioning protrusion and positioning groove ensure accurate mold assembly.
It achieves efficient sole edge forming, improves yield, produces good texture, avoids waste generation, and simplifies the assembly process.
Smart Images

Figure CN224179267U_ABST
Abstract
Description
A molding die for shoe sole edging Technical Field
[0001] This utility model relates to molding molds, and in particular to a molding mold for shoe sole edging. Background Technology
[0002] The textured design on the side of the sole can enhance its aesthetics. For the side that is higher than the top surface of the sole, a split design is proposed, in which the side is wrapped around the sole and bonded to the main body of the sole before the texture is pressed out. However, the yield rate is too low. It is proposed to improve the molding process by pressing out the texture of the side first and then bonding it to the main body of the sole. However, directly pressing the sheet material together results in a side that does not easily wrap around the main body of the sole and the texture is not good. Summary of the Invention
[0003] In view of the technical problems existing in the background art, the present utility model aims to provide a molding die for shoe sole edging, wherein the movable die, upper die and lower die together form an extrusion molding cavity, resulting in good molding effect.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: the forming mold for the shoe sole edge includes a movable mold, an upper mold and a lower mold. The movable mold is movably set, the upper mold has an elongated opening for the movable mold to pass through, and the lower mold has a textured part. The movable mold, the upper mold and the lower mold together form an extrusion molding cavity. During extrusion molding, the edge line of the elongated opening coincides with the edge line of the movable mold.
[0005] In this design, the movable die, upper die, and lower die together form an extrusion molding cavity. The movable die provides pressure for extrusion molding, and no waste is generated.
[0006] Preferably, the movable mold has a pressing part, and the pressing part is arched in the middle.
[0007] In this design, the arched middle section of the pressing part corresponds to the bend in the middle of the surrounding edge, which allows the surrounding edge to easily enclose the main body of the sole.
[0008] Preferably, the upper mold and the lower mold are in a concave-convex fit, the upper mold is a protrusion with an arched center, and the lower mold is a concave part.
[0009] In this design, the upper mold protrusion corresponds to the bending design in the middle of the surrounding edge, while the lower mold is a concave part to facilitate the setting of textured parts.
[0010] Preferably, the upper mold has positioning protrusions on its left and right sides, and the lower mold has positioning grooves corresponding to the positioning protrusions.
[0011] In this design, the positioning groove and the positioning protrusion are aligned, allowing the upper and lower molds to be accurately assembled together.
[0012] Preferably, the upper mold has positioning protrusions at all four corners, and the lower mold has positioning grooves at all four corners.
[0013] In this scheme, the four corners are accurately positioned.
[0014] Preferably, the positioning groove has an inclined guide surface, and the positioning protrusion has a fitting surface corresponding to the guide surface.
[0015] In this design, the positioning protrusion aligns with the positioning groove along the guide surface during assembly, thus completing the alignment process and making assembly convenient.
[0016] The beneficial effects of this utility model are as follows: the movable mold, upper mold, and lower mold together form an extrusion molding cavity; the movable mold provides pressure through movement, and the extrusion molding process does not generate waste; the arched center of the pressed part corresponds to the bent center of the surrounding edge, allowing the surrounding edge to easily enclose the main body of the shoe sole. Therefore, this utility model has substantial features and progress compared with the prior art. Attached Figure Description
[0017] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.
[0018] Figure 1 is a three-dimensional structural diagram of this utility model.
[0019] Figure 2 is an enlarged view of A in Figure 1.
[0020] Figure 3 is a three-dimensional structural diagram of the movable mold in this utility model.
[0021] In the diagram: 1. Movable mold; 2. Fixed mold; 3. Pressing part; 4. Long strip opening; 5. Textured part; 6. Upper mold; 7. Lower mold; 8. Positioning protrusion; 9. Positioning groove; 10. Guide surface; 11. Fitting surface. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.
[0024] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.
[0025] Referring to Figures 1-3, in this embodiment, a molding die for a shoe sole edge includes a movable die 1, an upper die 6, and a lower die 7. The movable die 1 is movably disposed and has a pressing part 3 with an arched center. The upper die 6 has an elongated opening 4 through which the movable die 1 passes. The lower die 7 has a textured part 5. The movable die 1, the upper die 6, and the lower die 7 together form an extrusion molding cavity. During extrusion molding, the edge of the elongated opening 4 coincides with the edge of the movable die 1. The upper die 6 and the lower die 7 are in a concave-convex fit. The upper die 6 is a protrusion with an arched center, and the lower die 7 is a concave part. The upper die 6 has positioning protrusions 8 at each of its four corners, and the lower die 7 has positioning grooves 9 at each of its four corners. The positioning grooves 9 have inclined guide surfaces 10, and the positioning protrusions 8 have contact surfaces 11 corresponding to the guide surfaces 10.
[0026] In this embodiment, the upper mold 6 and the lower mold 7 are assembled together. The strip-shaped material is put in through the elongated opening 4. The movable mold 1 passes through the elongated opening 4. The movable mold 1, the upper mold 6, and the lower mold 7 together form an extrusion molding cavity. The pressing part 3 extrudes and shapes the strip-shaped material. The finished product can be taken out by separating the upper mold 6 and the lower mold 7. During adjustment, the lower mold 7 is replaced to change the texture part 5. During assembly, the positioning protrusion 8 is aligned with the positioning groove 9 along the guide surface 10, and the middle part of the upper mold 6 is also attached to the middle part of the lower mold 7.
[0027] The above description represents the preferred embodiment of this utility model. It should be noted that the protection scope of this utility model is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in this utility model, and these modifications and substitutions are also considered to be within the protection scope of this utility model.
Claims
1. A molding die for forming the edge of a shoe sole, characterized in that: It includes a movable mold (1), an upper mold (6) and a lower mold (7). The movable mold (1) is movably set. The upper mold (6) has an elongated opening (4) through which the movable mold (1) passes. The lower mold (7) has a textured part (5). The movable mold (1), the upper mold (6) and the lower mold (7) together form an extrusion molding cavity. During extrusion molding, the edge of the elongated opening (4) coincides with the edge of the movable mold (1).
2. The molding die for forming the edging of a shoe sole as described in claim 1, characterized in that: The movable mold (1) has a pressing part (3) with the middle part of the pressing part (3) arched.
3. The molding die for forming the shoe sole edging as described in claim 2, characterized in that: The upper mold (6) and the lower mold (7) are in a concave-convex fit. The upper mold (6) is a protruding part with an arched center, and the lower mold (7) is a concave part.
4. The molding die for a shoe sole edging as described in claim 1, characterized in that: The upper mold (6) has positioning protrusions (8) on the left and right sides, and the lower mold (7) has positioning grooves (9) corresponding to the positioning protrusions (8).
5. The molding die for a shoe sole edging as described in claim 4, characterized in that: The upper mold (6) is provided with positioning protrusions (8) at all four corners, and the lower mold (7) is provided with positioning grooves (9) at all four corners.
6. The molding die for a shoe sole edging as described in claim 5, characterized in that: The positioning groove (9) is provided with an inclined guide surface (10), and the positioning protrusion (8) is provided with a fitting surface (11) corresponding to the guide surface (10).