A shoe heel cold setting mold

Abstract

The utility model discloses a shoe heel cold setting mould, including shoe heel seat body, the shoe heel seat body has the first side of corresponding human body ankle inside, the second side of corresponding human body ankle outside and the rear end face of corresponding human body heel, be provided with the first arc concave slot of recessing inwards on the first side, the first arc concave slot has the transition groove surface of from the periphery of groove bottom natural transition to the corresponding position of first side, be provided with the second arc concave slot of recessing inwards on the second side, the second arc concave slot has the transition groove surface of from the periphery of groove bottom natural transition to the corresponding position of second side. The utility model discloses a shoe heel cold setting mould, solved the problem of the down problem of the fluffiness of foam because of the mould excessive extrusion in the high and low temperature setting process of shoe heel.

Description

Technical Field

[0001] This utility model relates to the field of shoe mold technology, specifically to a cold-setting mold for shoe heels. Background Technology

[0002] During the production of athletic shoes, the heel needs to be shaped. In the shaping process, the heel first needs to be activated on a heat-setting machine at 80~100℃ to obtain the required shape of the shoe opening. Then, it is removed from the heat-setting machine and installed on a cold-setting machine at -5~0℃ to fix the shape of the shoe opening. Shaping molds are required for both shaping processes. The uniform pressure applied by traditional shaping molds during cold setting causes the foam on both sides of the ankle corresponding to the heel to be over-compressed during the low-temperature shaping process. This damages the fiber structure, resulting in a decrease in the fluffiness and elasticity of the shoe opening, which seriously affects the comfort and lifespan of the athletic shoes. Utility Model Content

[0003] The purpose of this invention is to provide a cold-setting mold for shoe heels, which solves the problem of reduced foam fluffiness caused by excessive compression of the mold during the high and low temperature setting process of shoe heels.

[0004] To achieve the above objectives, the solution of this utility model is: A cold-setting mold for shoe heels includes a shoe heel base, the shape of which is adapted to the shape of a human heel. The shoe heel base has a first side surface corresponding to the inner side of the human ankle, a second side surface corresponding to the outer side of the human ankle, and a rear end surface corresponding to the human heel. The first side surface is provided with an inwardly recessed first arc-shaped groove, the depth of which is 4-6 mm, the length of which is 8-10 cm, and the width of which is 15-25 mm. The first arc-shaped groove has a transition groove surface that naturally transitions from the bottom of the groove to the corresponding position of the first side surface. The second side surface is provided with an inwardly recessed second arc-shaped groove, the depth of which is 4-6 mm, the length of which is 8-10 cm, and the width of which is 15-25 mm. The second arc-shaped groove also has a transition groove surface that naturally transitions from the bottom of the groove to the corresponding position of the second side surface.

[0005] The slope of the transition groove surface of the first arc-shaped groove is 10°~15°.

[0006] The slope of the transition groove surface of the second arc-shaped groove is 10°~15°.

[0007] The upper edge of the first arc-shaped groove is 3-5 mm higher than the upper edge of the second arc-shaped groove.

[0008] A flat top surface connects the upper end of the first side and the upper end of the second side, a flat front surface connects the front end of the first side and the front end of the second side, and a flat bottom surface connects the lower end of the first side and the lower end of the second side.

[0009] With the above structure, this utility model provides a cold-setting mold for shoe heels. A first arc-shaped groove is provided on the first side of the heel base (contacting the inner side of the ankle corresponding to the shoe), and a second arc-shaped groove is provided on the second side of the heel base (contacting the outer side of the ankle corresponding to the shoe). The first and second arc-shaped grooves provide expansion / contraction space for the foam on both sides of the heel corresponding to the ankle, solving the problem of decreased foam fluffiness caused by excessive mold compression during high and low temperature setting processes. Furthermore... The first arc-shaped groove has a transition groove surface that naturally transitions from the periphery of the groove bottom to the corresponding position of the first side surface, and the first arc-shaped groove has a transition groove surface that naturally transitions from the periphery of the groove bottom to the corresponding position of the second side surface, which can effectively disperse pressure, reduce local stress in the mold, and extend the service life of the mold.

[0010] Therefore, the present invention provides a cold-setting mold for shoe heels that can effectively disperse pressure and reduce stress concentration. It can maintain the softness and resilience of foam under high or low temperature setting conditions, significantly improving the comfort and durability of sports shoes. It is suitable for the industrial production of various sports shoes and casual shoes. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a cold-setting mold for shoe heels according to this utility model; Figure 2 This is another structural schematic diagram of a shoe heel cold-setting mold according to the present invention; Figure 3 This is a rear view of a shoe heel cold-setting mold according to the present invention.

[0012] In the picture: Shoe heel seat 1; First side 11; Second side face 12; Rear end face 13; Top surface 14; First arc-shaped groove 2; Second arc-shaped groove 3. Detailed Implementation

[0013] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0014] A cold-setting mold for shoe heels, such as Figures 1-3As shown, it includes a heel seat 1, the shape of which is adapted to the shape of the human foot heel, and can be inserted into the heel of the sports shoe for shaping.

[0015] The heel base 1 has a first side 11 corresponding to the inner side of the ankle, a second side 12 corresponding to the outer side of the ankle, and a rear end face 13 corresponding to the heel. A flat top surface 14 connects the upper end of the first side 11 and the upper end of the second side 12. A flat front surface connects the front end of the first side 11 and the front end of the second side 12. A flat bottom surface connects the lower end of the first side 11 and the lower end of the second side 12. The first side 11 contacts the inner side of the ankle corresponding to the shoe, the second side 12 contacts the outer side of the ankle corresponding to the shoe, and the rear end face 13 contacts the heel of the shoe. The bottom surface is placed on the inner side of the sole of the shoe, thereby providing a shaping effect for the heel of the shoe during the high and low temperature molding process.

[0016] A first arc-shaped groove 2 is provided on the first side surface 11, which provides expansion / contraction space for the foam on the inner side of the ankle corresponding to the heel. Specifically, the depth of the first arc-shaped groove 2 is 4-6 mm, the length of the first arc-shaped groove 2 is 8-10 cm, and the width of the first arc-shaped groove 2 is 15-25 mm. The first arc-shaped groove 2 has a transition groove surface that naturally transitions from the bottom of the groove to the corresponding position on the first side surface 11. The slope of the transition groove surface is preferably 10°-15° to avoid stress concentration in the mold and reduce mold wear. It should be noted that the length 'a' of the first arc-shaped groove 2 refers to the sum of the straight-line distances from the lowest point of the first arc-shaped groove 2 along the length direction of the heel seat 1 to the two side edges of the first arc-shaped groove 2, and the width 'b' of the first arc-shaped groove 2 refers to the sum of the straight-line distances from the lowest point of the first arc-shaped groove 2 along the height direction of the heel seat 1 to the two side edges of the first arc-shaped groove 2.

[0017] The second side surface 12 is provided with an inwardly recessed second arc-shaped groove 3. The second arc-shaped groove 3 provides expansion / contraction space for the foam on the outer side of the ankle corresponding to the heel. Specifically, the depth of the second arc-shaped groove 3 is 4~6 mm, the length of the second arc-shaped groove 3 is 8~10 cm, and the width of the second arc-shaped groove 3 is 15~25 mm. The second arc-shaped groove 3 has a transition groove surface that naturally transitions from the bottom of the groove to the corresponding position on the second side surface 12. The slope of the transition groove surface is 10°~15°, which can avoid stress concentration in the mold and reduce mold wear. It should be noted that the definition of the length of the second arc-shaped groove 3 is the same as the definition of the length of the first arc-shaped groove 2, and the definition of the width of the second arc-shaped groove 3 is the same as the definition of the width of the first arc-shaped groove 2.

[0018] Based on ergonomic design, the foam on the inside of the heel corresponding to the ankle is 3-5 mm higher than the foam on the outside of the ankle. Therefore, the upper edge of the first arc-shaped groove 2 is 3-5 mm higher than the upper edge of the second arc-shaped groove 3.

[0019] Using the cold-setting mold for shoe heels of this utility model for cold-setting shoe heels can reduce foam compression rate by >20%, increase elasticity by ≥25%, and maintain foam fluffiness by over 95% (compared to only 70% with traditional molds).

[0020] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A cold-setting mold for shoe heels, comprising a shoe heel base, characterized in that: The shape of the shoe heel seat is adapted to the shape of the human heel. The shoe heel seat has a first side surface corresponding to the inner side of the human ankle, a second side surface corresponding to the outer side of the human ankle, and a rear end surface corresponding to the human heel. The first side surface is provided with an inwardly recessed first arc-shaped groove. The depth of the first arc-shaped groove is 4-6 mm, the length of the first arc-shaped groove is 8-10 cm, and the width of the first arc-shaped groove is 15-25 mm. The first arc-shaped groove has a transition groove surface that naturally transitions from the bottom of the groove to the corresponding position of the first side surface. The second side surface is provided with an inwardly recessed second arc-shaped groove. The depth of the second arc-shaped groove is 4-6 mm, the length of the second arc-shaped groove is 8-10 cm, and the width of the second arc-shaped groove is 15-25 mm. The second arc-shaped groove has a transition groove surface that naturally transitions from the bottom of the groove to the corresponding position of the second side surface.

2. The shoe heel cold-setting mold according to claim 1, characterized in that: The slope of the transition groove surface of the first arc-shaped groove is 10°~15°.

3. The shoe heel cold-setting mold according to claim 1, characterized in that: The slope of the transition groove surface of the second arc-shaped groove is 10°~15°.

4. The shoe heel cold-setting mold according to claim 1, characterized in that: The upper edge of the first arc-shaped groove is 3-5 mm higher than the upper edge of the second arc-shaped groove.

5. The shoe heel cold-setting mold according to claim 1, characterized in that: A flat top surface connects the upper end of the first side and the upper end of the second side, a flat front surface connects the front end of the first side and the front end of the second side, and a flat bottom surface connects the lower end of the first side and the lower end of the second side.

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