Forming mold for TPR (Thermoplastic Rubber) toecap sole

Abstract

The utility model discloses a forming die for a TPR (Thermoplastic Rubber) wrapped shoe sole, which comprises a bottom die, a die cover, an inner core pressing die and a wrapped slider, the bottom die comprises a bottom plate and an outer edge protruding out of the bottom plate, the middle of the bottom die is provided with a bottom die cavity, the die cover is provided with an accommodating cavity, and the inner core pressing die and the wrapped slider are both positioned in the bottom die cavity; the bottom die comprises a first side bottom die and a second side bottom die which are mutually spliced, positioning columns are formed on the sides, close to the bottom die cavity, of the first side bottom die and the second side bottom die, positioning grooves are formed in the two sides of the inner core pressing die, the positioning columns are connected into the positioning grooves, and a notch is formed in the front end of the side, away from the die cover, of the inner core pressing die; the wrapping head sliding block is located in the center of the notch, limiting parts are arranged at the positions, close to the notch, of the first side bottom die and the second side bottom die respectively, and the limiting parts limit the wrapping head sliding block to move out of the bottom die cavity. According to the embodiment, the whole mold is reasonable in design structure, all parts are tightly and efficiently matched, and the production efficiency and the production quality of the toe cap sole are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of shoe sole production mold technology, specifically to a molding mold for TPR toe cap shoe soles. Background Technology

[0002] A closed-toe sole is a design where the toe area of ​​a regular shoe sole is covered to enhance the shoe's protection, stability, or aesthetics. More and more athletic and fashion shoes are adopting closed-toe designs to improve stability and support, or as a decorative element, giving the shoe a unique look and style.

[0003] In fashionable shoe designs, the sole and toe cap are made of the same material through injection molding. This requires the molding mold to have a toe cap forming structure for the toe area. Existing toe cap sole molding molds have drawbacks such as complex sole production processes, difficulty in demolding the sole, and low production efficiency. Moreover, the thickness of the toe cap part of the produced sole is not uniform, which affects the production quality of the toe cap sole. Summary of the Invention

[0004] To solve the above problems, the technical solution provided by this utility model is as follows:

[0005] A molding die for a TPR (Toyota Propeller) toe cap sole includes a bottom mold, a mold cover, an inner core mold, and a toe cap slider. The bottom mold includes a bottom plate and an outer edge protruding from the bottom plate. A bottom mold cavity is formed in the middle of the bottom mold. A receiving cavity adapted to the outer edge is formed on the mold cover. The inner core mold and the toe cap slider are both located in the bottom mold cavity. The bottom mold includes a first side bottom mold and a second side bottom mold spliced ​​together. A positioning post is formed on the side of the first side bottom mold and the second side bottom mold near the bottom mold cavity. Positioning grooves are formed on both sides of the inner core mold. The positioning post is connected in the positioning groove. A notch is formed at the front end of the side of the inner core mold away from the mold cover. The toe cap slider is located in the center of the notch. Limiting parts are respectively provided on the first side bottom mold and the second side bottom mold near the notch. The limiting parts restrict the toe cap slider from moving out of the bottom mold cavity.

[0006] The present invention is further configured such that the front and rear ends of the first side bottom mold near the bottom mold cavity are respectively provided with a first snap-fit ​​groove and a first snap-fit ​​post, and the front and rear ends of the second side bottom mold near the bottom mold cavity are respectively provided with a second snap-fit ​​groove and a second snap-fit ​​post, the first snap-fit ​​post being connected in the second snap-fit ​​groove, and the second snap-fit ​​post being connected in the first snap-fit ​​groove.

[0007] The present invention is further configured such that the head slider is connected to an external telescopic mechanism.

[0008] The present invention is further configured such that injection holes are provided on the first side bottom mold and / or the second side bottom mold.

[0009] The present invention is further configured such that the inner core mold includes a connecting part and a mold body part, and the positioning groove is provided in the connecting part.

[0010] The present invention is further configured such that the side of the mold body near the mold cover, the concave surface of the mold cover, and the side wall of the bottom mold cavity are all provided with shoe sole patterns.

[0011] The present invention is further configured such that the outer wall of the outer edge is inclined toward the bottom mold cavity.

[0012] The present invention is further configured such that the inner core mold and the head slider are both integrally formed.

[0013] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0014] The working method of the molding die for the TPR toe cap sole is as follows: the first and second side bottom molds are pushed by an external cylinder to splice them together, the inner core mold and the toe cap slider are covered in the bottom mold cavity, the mold cover is then fastened to the outer edge of the bottom mold, and injection molding is performed into the bottom mold cavity. The external telescopic mechanism is controlled according to the process time to lift the toe cap slider, thus constructing the toe cap structure of the shoe toe part.

[0015] The molding die structure for TPR toe cap soles of this utility model has the following advantages:

[0016] Positioning pins are formed on the side of the first and second bottom molds near the bottom mold cavity. These positioning pins match the positioning grooves on both sides of the inner core mold, ensuring the precise positioning of the inner core mold in the mold.

[0017] The inner core mold has a notch at the front end on the side away from the mold cover, and the toe block slider is located in the center of this notch. This design allows the position or size of the toe block slider to be adjusted according to production needs, thereby producing shoe soles with different toe shapes and sizes. This flexibility enables the mold to adapt to a variety of product designs, improving production efficiency and product diversity.

[0018] The first and second side bottom molds are respectively provided with limiting parts near the notch. These limiting parts can prevent the toe block slider from accidentally moving out of the bottom mold cavity. This not only helps to protect the mold from damage, but also ensures the stability and safety of the mold during the shoe sole forming process.

[0019] The overall mold design is reasonable, and the components fit together closely and efficiently. Attached Figure Description

[0020] Figure 1 This is an exploded view of the molding die in an embodiment of this utility model.

[0021] Figure 2 This is a top view of the bottom mold in the combined state according to an embodiment of the present invention.

[0022] Figure 3 This is a top view of the bottom mold in the separated state according to an embodiment of the present invention.

[0023] Figure 4 This is a bottom view of the mold cover according to an embodiment of the present utility model.

[0024] Figure 5 This is an exploded view of the inner core mold and the head slider in an embodiment of this utility model.

[0025] Figure 6 This is a side view of the inner core pressing mold in an embodiment of this utility model. Detailed Implementation

[0026] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to fixed connections, integral connections, or detachable connections; they can refer to mechanical connections or electrical connections, or internal connections between two components; they can refer to direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] Combined with appendix Figure 1 To be continued Figure 6This utility model provides a molding die for a TPR (Toyota Precision Rubber) shoe sole, comprising a bottom mold 1, a mold cover 2, an inner core pressing mold 3, and a toe-covering slider 4. The bottom mold 1 includes a bottom plate 11 and an outer edge 12 protruding from the bottom plate 11. A bottom mold cavity 13 is formed in the middle of the bottom mold 1. The mold cover 2 has a receiving cavity 21 adapted to the outer edge 12. The inner core pressing mold 3 and the toe-covering slider 4 are both located within the bottom mold cavity 13. The bottom mold 1 includes a first side bottom mold 14 and a second side bottom mold 15 formed by splicing them together. Positioning posts are formed on the side of the bottom mold 14 and the second side bottom mold 15 near the bottom mold cavity 13. Positioning grooves 31 are provided on both sides of the inner core pressing mold 3. The positioning posts are connected in the positioning grooves 31. A notch 32 is provided at the front end of the inner core pressing mold 3 away from the mold cover 2. The head slider 4 is located in the center of the notch 32. Limiting parts are provided on the first side bottom mold 14 and the second side bottom mold 15 near the notch 32. The limiting parts restrict the head slider 4 from moving out of the bottom mold cavity 13.

[0030] In this embodiment, the inner core mold 3 has a notch 32 at its front end on the side away from the mold cover 2, and the toe cap slider 4 is located in the center of this notch 32. This design allows the position or size of the toe cap slider 4 to be adjusted according to production needs, thereby producing shoe soles with different toe cap shapes and sizes. This flexibility enables the mold to adapt to a variety of product designs, improving production efficiency and product diversity.

[0031] As attached Figure 2 and attached Figure 3 As shown, a first positioning post 141 is formed on the side of the first side bottom mold 14 near the bottom mold cavity 13, and a second positioning post 151 is formed on the side of the second side bottom mold 15 near the bottom mold cavity 13. Both the first positioning post 141 and the second positioning post 151 are adapted to the positioning groove 31, and are respectively connected to the positioning grooves 31 on both sides of the inner core mold 3. In this embodiment, positioning posts are formed on the side of the first side bottom mold 14 and the second side bottom mold 15 near the bottom mold cavity 13. These positioning posts match the positioning grooves 31 on both sides of the inner core mold, ensuring the precise positioning of the inner core mold 3 in the mold.

[0032] For example, see attached Figure 2 and attached Figure 3As shown, the first side mold 14 has a first limiting part 142 near the notch 32, and the second side mold 15 has a second limiting part 152 near the notch 32. The first limiting part 142 and the second limiting part 152 are respectively the extension portions of the first side mold 14 and the second side mold 15 into the mold cavity 13. In this embodiment, the first side mold 14 and the second side mold 15 are respectively provided with limiting parts near the notch 32. These limiting parts can prevent the toe block slider 4 from accidentally moving out of the mold cavity 13. This not only helps to protect the mold from damage, but also ensures the stability and safety of the mold during the shoe sole forming process.

[0033] In this embodiment, the first side bottom mold 14 is provided with a first snap-fit ​​groove 143 and a first snap-fit ​​post 144 at its front and rear ends near the bottom mold cavity 13, respectively. The second side bottom mold 15 is provided with a second snap-fit ​​groove 153 and a second snap-fit ​​post 154 at its front and rear ends near the bottom mold cavity 13, respectively. The first snap-fit ​​post 144 is connected to the second snap-fit ​​groove 153, and the second snap-fit ​​post 154 is connected to the first snap-fit ​​groove 143.

[0034] In this embodiment, the toe cap slider 4 is connected to an external telescopic mechanism. The telescopic mechanism positions the toe cap slider 4 at the center of the notch 32 on the inner core mold 3, and lifts it during the toe cap forming process to obtain an integrated toe cap sole. Other components of the mold are also controlled by external pneumatic or electromechanical equipment. For example, the first side sole mold 14, the second side sole mold 15, the mold cover 2, and the inner core mold 3 are all controlled by cylinders. (See attached diagram) Figure 1 As shown, the mold cover 2 moves relative to the bottom mold 1 in the Z-axis direction, the first side bottom mold 14 and the second side bottom mold 15 move relative to the X-axis direction, and the head slider 4 moves relative to the bottom mold 1 in the Z-axis direction.

[0035] In this embodiment, injection holes are provided on the first side mold 14 and / or the second side mold 15; preferably, injection holes are provided on both the first side mold 14 and the second side mold 15 to improve the injection speed and uniformity of the toe cap sole. In this embodiment, the injection material is TPR material, namely thermoplastic rubber material, which is a thermoplastic soft rubber material with rubber elasticity that does not require vulcanization and can be directly processed into molds.

[0036] In this embodiment, the inner core mold 3 includes a connecting part 33 and a mold body part 34, and the positioning groove 31 is provided in the connecting part 33.

[0037] In this embodiment, the mold body 34 is provided with shoe sole patterns on the side near the mold cover 2, the concave surface of the mold cover 2, and the side wall of the bottom mold cavity 13, for forming the patterns of the toe cap shoe sole.

[0038] In this embodiment, the outer wall of the outer edge 12 is inclined toward the bottom mold cavity 13 to facilitate the mold cover 2 from the bottom mold 1.

[0039] In this embodiment, the inner core mold 3 and the head slider 4 are both integrally formed.

[0040] The working method of the TPR toe cap sole molding mold of this utility model is as follows: An external cylinder pushes the first side mold 14 and the second side mold 15 to join them, enclosing the inner core mold 3 and the toe cap slider 4 inside the bottom mold cavity 13. Then, the mold cover 2 is fastened onto the outer edge 12 of the bottom mold 1, and injection molding is performed into the bottom mold cavity 13. According to the process time, the external telescopic mechanism is controlled to lift the toe cap slider 4, constructing the toe cap structure of the shoe toe. This embodiment features a reasonable overall mold design, with tight and efficient cooperation between components, effectively improving the production efficiency and quality of toe cap soles.

[0041] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A molding die for a TPR toe cap sole, characterized in that, The device includes a bottom mold, a mold cover, an inner core pressing mold, and a head-covering slider. The bottom mold includes a base plate and an outer edge protruding from the base plate. A bottom mold cavity is formed in the middle of the bottom mold. A receiving cavity adapted to the outer edge is formed on the mold cover. The inner core pressing mold and the head-covering slider are both located in the bottom mold cavity. The bottom mold includes a first side bottom mold and a second side bottom mold spliced ​​together. A positioning post is formed on the side of the first side bottom mold and the second side bottom mold near the bottom mold cavity. Positioning grooves are formed on both sides of the inner core pressing mold. The positioning post is connected in the positioning groove. A notch is formed at the front end of the side of the inner core pressing mold away from the mold cover. The head-covering slider is located in the center of the notch. Limiting parts are respectively provided at the positions of the first side bottom mold and the second side bottom mold near the notch. The limiting parts restrict the head-covering slider from moving out of the bottom mold cavity.

2. The molding die for a TPR toe cap sole according to claim 1, characterized in that, The first side bottom mold has a first snap-fit ​​groove and a first snap-fit ​​post at its front and rear ends near the bottom mold cavity, respectively. The second side bottom mold has a second snap-fit ​​groove and a second snap-fit ​​post at its front and rear ends near the bottom mold cavity, respectively. The first snap-fit ​​post is connected to the second snap-fit ​​groove, and the second snap-fit ​​post is connected to the first snap-fit ​​groove.

3. A molding die for a TPR toe cap sole according to claim 1, characterized in that, The head slider is connected to an external telescopic mechanism.

4. A molding die for a TPR toe cap sole according to claim 1, characterized in that, Injection holes are provided on the first side bottom mold and / or the second side bottom mold.

5. A molding die for a TPR toe cap sole according to claim 1, characterized in that, The inner core mold includes a connecting part and a mold body part, and the positioning groove is provided in the connecting part.

6. A molding die for a TPR toe cap sole according to claim 5, characterized in that, The mold body has shoe sole patterns on the side near the mold cover, the concave surface of the mold cover, and the side wall of the bottom mold cavity.

7. A molding die for a TPR toe cap sole according to any one of claims 1 to 6, characterized in that, The outer wall of the outer edge is inclined toward the bottom mold cavity.

8. A molding die for a TPR toe cap sole according to any one of claims 1 to 6, characterized in that, Both the inner core mold and the head slider are integrally formed.

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