Shoe sole forming mold

Abstract

The utility model discloses a shoe sole forming die for making shoe sole, the upside of shoe sole is the adhesion surface, the downside is the ground surface, the die includes the upper die and lower die of mutual cooperation, be provided with the core on the upper die, be provided with the cavity on the lower die, when the upper die with lower die closes the die, form the forming space for forming shoe sole between the core with the cavity, be provided with the adhesion surface forming area of corresponding adhesion surface on the inner wall of forming space, the first texture with concave -convex has on the adhesion surface forming area. The utility model sets up the first texture with concave -convex on the adhesion surface forming area, can correspondingly form the shoe sole adhesion surface with concave -convex texture, effectively increase the bonding area of shoe sole and midsole, ensure that both bonding firm.

Description

Technical Field

[0001] This utility model relates to the field of shoe mold technology, and in particular to a shoe outsole forming mold. Background Technology

[0002] In recent years, popcorn-shaped midsoles made of ETPU (expanded thermoplastic polyurethane) have been widely used in athletic shoes, casual shoes, and other fields due to their excellent lightweight and high-rebound cushioning performance. The connected outsole is usually made of materials such as rubber and TPU through hot pressing or injection molding, and mainly serves the functions of support, wear resistance, and slip resistance.

[0003] Currently, adhesive bonding is commonly used to bond the outsole and the popcorn midsole. However, due to the foaming characteristics of the material, the surface of the popcorn midsole is not smooth and flat, but rather has a unique three-dimensional structure with unevenness, particles, and pores. This makes it difficult for traditional bonding processes to achieve ideal results, often resulting in insufficient adhesion between the outsole and the popcorn midsole, leading to issues such as delamination and separation, which seriously affects the lifespan of the shoe and the wearing experience. Therefore, it is necessary to improve and optimize existing outsole molds to ensure a more secure bond between the molded outsole and the midsole. Utility Model Content

[0004] The purpose of this utility model is to provide a shoe outsole forming mold to form a shoe outsole that can firmly bond to the midsole.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A shoe outsole forming mold is used to manufacture shoe outsoles. The upper side of the shoe outsole is an adhesive surface, and the lower side is a contact surface. The mold includes an upper mold and a lower mold that cooperate with each other. The upper mold is provided with a core, and the lower mold is provided with a cavity. When the upper mold and the lower mold are closed, a forming space for forming the shoe outsole is formed between the core and the cavity. The inner wall of the forming space is provided with an adhesive surface forming area corresponding to the adhesive surface. The adhesive surface forming area has a first texture with concave and convex surfaces.

[0006] Furthermore, a surface treatment layer is attached to the surface of the first texture, and the thickness of the surface treatment layer is uniformly set.

[0007] Preferably, the surface treatment layer is a Teflon coating or a Teflon plating.

[0008] Furthermore, the first texture corresponds to the formation of holes and / or grooves on the adhesive surface into which popcorn foam particles can be embedded.

[0009] Furthermore, overflow grooves are provided on the outer side of the cavity, and the overflow grooves are arranged along the outer contour line of the cavity.

[0010] Furthermore, the core is provided with a plurality of perforated grooves, and the cavity is provided with a plurality of perforated bosses that can be embedded in the perforated grooves. The perforated grooves and the perforated bosses correspond one-to-one and match in shape.

[0011] Furthermore, multiple pairs of mutually cooperating positioning pins and positioning holes are provided between the upper mold and the lower mold. The positioning pins protrude from the through-hole boss, and the positioning holes are formed in the through-hole groove.

[0012] Furthermore, multiple pairs of cooperating positioning bosses and positioning grooves are provided between the upper mold and the lower mold, and the positioning bosses and positioning grooves are respectively located on the outer side of the core and the cavity.

[0013] Furthermore, the bonding surface forming area is disposed on the core, and the cavity is provided with a ground surface forming area corresponding to the ground surface. The ground surface forming area is provided with a second texture and a third texture with concave and convex surfaces. The second texture is disposed around the outer periphery of the third texture, and the position of the second texture corresponds to the edge of the cavity. The density of the third texture is less than that of the second texture.

[0014] Furthermore, the upper mold and the lower mold are hinged to each other, an upper handle is fixedly provided on the side of the upper mold, and a lower handle is fixedly provided on the side of the lower mold, with the positions of the upper handle and the lower handle being staggered vertically.

[0015] This utility model has the following beneficial effects: 1. This utility model sets a first texture with concave and convex features on the bonding surface forming area, which can correspondingly form a bonding surface with concave and convex features on the outsole, thereby increasing the effective bonding area between the outsole and the midsole and improving the bonding strength between the outsole and the midsole.

[0016] 2. The outsole provided by this utility model has a surface treatment layer attached to the uneven first textured surface. The thickness of the surface treatment layer is uniformly set, which can form a smooth adhesive surface on the outsole. This allows the adhesive sprayed onto the outsole to adhere evenly to the adhesive surface, improving the flow uniformity of the adhesive and optimizing the adhesive effect.

[0017] 3. The first texture provided in this utility model corresponds to the formation of recessed holes and / or grooves on the adhesive surface of the shoe outsole. During the injection molding of the midsole, the popcorn foam particles can be embedded in the holes and grooves on the adhesive surface, so that the shoe outsole can better adhere to the formed popcorn midsole and reduce the risk of local stress concentration. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the upper mold structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the lower mold structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the two sides of the outsole structure of the shoe of this utility model.

[0022] Explanation of main component symbols: 100, upper mold; 110, core; 111, bonding surface forming area; 111a, first texture; 112, perforation groove; 113, positioning hole; 120, positioning groove; 130, upper hinge; 140, upper handle; 200, lower mold; 210, cavity; 211, contact surface forming area; 211a, second texture; 211b, third texture; 212, perforation boss; 213, positioning pin; 220, overflow groove; 230, positioning boss; 240, lower hinge; 250, lower handle. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-3 As shown, this utility model discloses a shoe outsole forming mold for manufacturing shoe outsoles 1'. Figure 4 As shown, the upper side of the outsole 1' is the adhesive surface 2' for bonding the midsole, and the lower side of the outsole 1' is the contact surface 3'. The mold includes an upper mold 100 and a lower mold 200 that cooperate with each other. The upper mold 100 is fixedly provided with an upper hinge part 130 and an upper handle 140 on its side, and the lower mold 200 is fixedly provided with a lower hinge part 240 and a lower handle 250 on its side. The upper mold 100 and the lower mold 200 are hinged to each other through the upper hinge part 130 and the lower hinge part 240. The positions of the upper handle 140 and the lower handle 250 are staggered vertically to facilitate flipping the upper mold 100 for mold closing and opening.

[0025] The upper mold 100 is provided with a core 110, and the lower mold 200 is provided with a cavity 210. When the upper mold 100 and the lower mold 200 are closed, a molding space for molding the shoe outsole 1' is formed between the core 110 and the cavity 210. An adhesive surface molding area 111 is provided on the inner wall of this molding space, which can correspond to the adhesive surface 2' on the shoe outsole 1'. The adhesive surface molding area 111 has a first texture 111a with concave and convex surfaces. A surface treatment layer can be further attached to the surface of the first texture 111a. The thickness of the surface treatment layer is uniformly set to avoid filling the first texture 111a.

[0026] The first texture 111a creates a textured surface on the bonding surface 2' of the outsole 1', effectively increasing the bonding area between the outsole 1' and the midsole and improving their bonding strength. The surface treatment layer further enhances the smoothness of the bonding surface 2', allowing the adhesive sprayed onto it to adhere evenly and fully, preventing the adhesive from becoming too rough and thus improving the bonding effect between the outsole 1' and the midsole.

[0027] In this embodiment, the bonding surface forming area 111 is disposed on the core 110 of the upper mold 100. The surface treatment layer attached to the bonding surface forming area 111 is a Teflon coating or Teflon plating, which can cover a dense and uniform film on the first texture 111a, ensuring the smoothness of the formed bonding surface 2' without affecting the formation of holes and / or grooves on the bonding surface 2' corresponding to the first texture 111a.

[0028] The density and texture of the first texture 111a are designed according to the particle size of the popcorn foam particles, so that the bonding surface 2' of the molded outsole 1' can adapt to the special surface morphology of the popcorn midsole. The molded outsole 1' can be connected to the midsole in an integrated foam molding mold for the popcorn outsole and rubber outsole, as shown in publication number CN222309575U. During the injection molding process of the popcorn midsole, the holes and / or grooves on the bonding surface 2' not only increase the effective bonding area, but also embed the popcorn foam particles, forming a mechanical interlock, which promotes better fit of the outsole 1' to the popcorn midsole and reduces the risk of local stress concentration. With the adhesive (heat-activated) pre-sprayed on the bonding surface 2', the outsole 1' can be firmly bonded to the popcorn midsole.

[0029] The cavity 210, which matches the core 110, is provided with a ground contact forming area 211 corresponding to the ground surface 3'. The ground contact forming area 211 is provided with a second texture 211a and a third texture 211b with concave and convex surfaces. The second texture 211a is arranged around the outer periphery of the third texture 211b, and the position of the second texture 211a corresponds to the edge of the cavity 210. The position of the third texture 211b matches the position on the ground surface 3' corresponding to the forefoot and heel, that is, the main stress points of the ground surface 3'.

[0030] The second texture 211a and the third texture 211b can form anti-slip patterns on the contact surface 3' of the outsole 1', improving wearing safety. Preferably, the density of the third texture 211b is less than that of the second texture 211a, resulting in a rougher surface on the outsole 1' corresponding to the forefoot and heel, thus improving the anti-slip effect of the main stress-bearing areas of the contact surface 3'.

[0031] In addition, an overflow groove 220 is provided on the outer side of the cavity 210. The overflow groove 220 is arranged along the outer contour line of the cavity 210 and is used to guide and collect excess material during the hot pressing process.

[0032] The aforementioned core 110 is also provided with a number of perforated grooves 112, and the cavity 210 is provided with a number of perforated protrusions 212 that can be embedded in the perforated grooves 112. The perforated grooves 112 and the perforated protrusions 212 correspond one-to-one and match in shape. The two work together to form a hollow part 4' on the outsole 1'. This hollow part 4' can enhance the diversity of the outsole's appearance; on the other hand, when it is connected to the foam midsole (such as a popcorn midsole) later, the hollow part 4 can expose and wrap part of the midsole, which can also enhance the connection between the outsole 1' and the midsole.

[0033] To prevent misalignment during mold closing, multiple pairs of cooperating positioning bosses 230 and positioning grooves 120 are provided between the upper mold 100 and the lower mold 200, as well as multiple pairs of cooperating positioning pins 213 and positioning holes 113. The positioning bosses 230 and positioning grooves 120 are relatively large in size and are respectively located on the outer side of the core 110 and the cavity 210, enabling quick alignment of the upper mold 100 and the lower mold 200. The positioning pins 213 protrude from the through-hole boss 212, and the positioning holes 113 are formed within the through-hole groove 112. Both are relatively small in size, further aligning the through-hole boss 212 and the through-hole groove 112, improving mold closing accuracy.

[0034] In summary, the outsole molding die provided in this application can produce an outsole 1' that can firmly bond the midsole, especially the popcorn midsole, effectively extending the service life of the outsole and improving the user's wearing experience.

[0035] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims are within the scope of protection of the present invention.

Claims

1. A shoe outsole forming mold for manufacturing shoe outsoles, wherein the upper side of the shoe outsole is an adhesive surface and the lower side is the contact surface, characterized in that: The device includes an upper mold and a lower mold that cooperate with each other. The upper mold is provided with a core, and the lower mold is provided with a cavity. When the upper mold and the lower mold are closed, a molding space for molding a shoe outsole is formed between the core and the cavity. The inner wall of the molding space is provided with an adhesive surface molding area corresponding to the adhesive surface. The adhesive surface molding area has a first texture with concave and convex features.

2. The shoe outsole forming mold as described in claim 1, characterized in that: The surface of the first texture is coated with a surface treatment layer, and the thickness of the surface treatment layer is uniformly set.

3. The shoe outsole forming mold as described in claim 2, characterized in that: The surface treatment layer is a Teflon coating or a Teflon plating layer.

4. The shoe outsole forming mold as described in claim 1, characterized in that: The first texture corresponds to the formation of holes and / or grooves on the adhesive surface into which popcorn foam particles can be embedded.

5. The shoe outsole forming mold as described in claim 1, characterized in that: The cavity has overflow grooves on its outer side, and the overflow grooves are arranged along the outer contour line of the cavity.

6. The shoe outsole forming mold as described in claim 1, characterized in that: The core has a plurality of perforated grooves, and the cavity has a plurality of perforated bosses that can be embedded in the perforated grooves. The perforated grooves and the perforated bosses correspond one-to-one and match in shape.

7. The shoe outsole forming mold as described in claim 6, characterized in that: Multiple pairs of cooperating positioning pins and positioning holes are provided between the upper mold and the lower mold. The positioning pins protrude from the through-hole boss, and the positioning holes are formed in the through-hole groove.

8. The shoe outsole forming mold as described in claim 1, characterized in that: Multiple pairs of cooperating positioning bosses and positioning grooves are provided between the upper mold and the lower mold, and the positioning bosses and positioning grooves are respectively located on the outer side of the core and the cavity.

9. The shoe outsole forming mold as described in claim 1, characterized in that: The bonding surface forming area is disposed on the core, and the cavity is provided with a ground surface forming area corresponding to the ground surface. The ground surface forming area is provided with a second texture and a third texture with concave and convex surfaces. The second texture is disposed around the outer periphery of the third texture, and the position of the second texture corresponds to the edge of the cavity. The density of the third texture is less than that of the second texture.

10. The shoe outsole forming mold as described in claim 1, characterized in that: The upper mold and the lower mold are hinged to each other. An upper handle is fixedly provided on the side of the upper mold, and a lower handle is fixedly provided on the side of the lower mold. The positions of the upper handle and the lower handle are staggered vertically.

Images