Sole forming mold convenient to demold

By designing a robust sole molding mold structure and utilizing the tight fit between the insert rod and the inner core, the deformation problem during sole demolding was solved, achieving convenient operation and an efficient production process.

CN223630751UActive Publication Date: 2025-12-05ZHE JIANG DONG DOU BAO MO JU YOU XIAN GONG SI
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Patent Information

Application Number
CN202520023880.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2025-12-05
Estimated Expiration
2035-01-06

AI Technical Summary

Technical Problem

Existing shoe sole molds are prone to stretching and deformation during demolding and are not very efficient, especially for shoe soles with complex patterns on both sides, which are even more difficult to demold.

Method used

A shoe sole forming mold is designed, comprising a first side mold, a second side mold, an inner core, and a bottom mold. The mold is connected by inserts on the first and second clamping inner walls, and combined with the fitting structure of the inner core and the punch, it ensures that the mold is stable when closed and can be easily separated when demolding.

Benefits of technology

It improves the ease of operation of the mold during closing, injection and demolding processes, reduces the deformation of the sole during demolding, ensures the quality of the sole and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sole forming mould convenient to demould, which comprises a first side mould, a second side mould, an inner core and a bottom mould, the first side mould is provided with a first injection molding inner wall and a first clamping inner wall, and the second side mould is provided with a second injection molding inner wall and a second clamping inner wall. A first inserting rod and a second inserting rod are arranged on the first clamping inner wall and the second clamping inner wall respectively; a first grain surface is arranged on the inner core, and a slot is formed in the first grain surface; a male die is arranged on one side of the bottom die, and a second grain surface is arranged on the male die; when the first side edge mold and the second side edge mold are spliced, the first inserting rod and the second inserting rod are connected with each other and located in the inserting groove, the periphery of the inner core is attached to the first clamping inner wall and the second clamping inner wall correspondingly, and the periphery of the male mold is attached to the first injection molding inner wall and the second injection molding inner wall correspondingly. The requirement that the front face of a target shoe sole is provided with a flat contact face is met, deformation of the shoe sole during demolding is avoided, the whole production process is simplified, and production efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shoe sole mould, specifically relates to a shoe sole forming mould convenient for demoulding. BACKGROUND

[0002] Mould is various moulds and tools used in industrial production to obtain required articles by injection moulding, blow moulding, extrusion, pressure casting or forging forming, smelting, stamping and other methods. The processing of shoe sole is through injection moulding in the forming cavity of mould, and then the demoulding of the formed shoe sole is taken out.

[0003] With the development of society, the types and styles of shoe soles are also endless, especially some shoe soles are provided with complex patterns on the front and back surfaces, and some shoe soles are provided with flat contact surfaces on the front surfaces for bonding shoe body, so that the demoulding of shoe sole is more difficult, and the pulling deformation of shoe sole in the demoulding process is easily caused, and the demoulding efficiency is not high. Therefore, it is urgent to design a shoe sole forming mould convenient for demoulding to overcome the demoulding defects of shoe sole in the prior art. SUMMARY

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

[0005] A shoe sole forming mould convenient for demoulding, comprising a first side edge mould, a second side edge mould, an inner core and a bottom mould, one side of the first side edge mould close to the second side edge mould is provided with a first injection inner wall and a first clamping inner wall protruding from the first injection inner wall, one side of the second side edge mould close to the first side edge mould is provided with a second injection inner wall and a second clamping inner wall protruding from the second injection inner wall, and first and second inserting rods are respectively arranged on the first and second clamping inner walls; one side of the inner core close to the bottom mould is provided with a first pattern surface, and an inserting groove is formed in the first pattern surface; one side of the bottom mould close to the inner core is provided with a projection mould, and a second pattern surface is arranged on the projection mould; when the first side edge mould and the second side edge mould are spliced, the first and second inserting rods are connected with each other and located in the inserting groove, the outer periphery of the inner core is attached to the first and second clamping inner walls respectively, and the outer periphery of the projection mould is attached to the first and second injection inner walls respectively.

[0006] The utility model is further provided with first and second inner core positioning columns on the first and second clamping inner walls respectively, and inner core positioning holes are arranged on both sides of the inner core and matched with the first and second inner core positioning columns respectively.

[0007] The utility model further sets up that the side of first plug stick is equipped with the clamping block, the side of second plug stick is equipped with the clamping groove, the first side edge mould and the second side edge mould are spliced, and the clamping block is connected in the clamping groove.

[0008] The utility model further sets up that the contact surface between first plug stick and second plug stick is compatible.

[0009] The utility model further sets up that the side of first plug stick and second plug stick close to the bottom die is all flat surface, and the side of first plug stick and second plug stick away from the bottom die is all arc surface.

[0010] The utility model further sets up that the first side edge mould is equipped with first edge mould positioning post and first edge mould positioning groove respectively at the two ends of the side close to the second side edge mould, the second side edge mould is equipped with second edge mould positioning post and second edge mould positioning groove respectively at the two ends of the side close to the first side edge mould, the first edge mould positioning post is compatible with the second edge mould positioning groove, and the second edge mould positioning post is compatible with the first edge mould positioning groove.

[0011] The utility model further sets up that the bottom die is equipped with injection channel, and the injection port of injection channel is located on the convex die.

[0012] The utility model further sets up that the first side edge mould, the second side edge mould, the inner core and the bottom die are integrally formed.

[0013] The working principle of the shoe sole forming mould convenient for demoulding is as follows: the first side edge mould and the second side edge mould are spliced on the two sides of the inner core, the first plug stick and the second plug stick are connected in the plug groove, the outer periphery of the inner core is respectively attached to the first clamping inner wall and the second clamping inner wall, the bottom die is buckled on the first side edge mould and the second side edge mould, the outer periphery of the convex die is respectively attached to the first injection inner wall and the second injection inner wall, so as to form a relatively closed shoe sole injection cavity, material injection is carried out on the shoe sole injection cavity, the bottom die is opened after cooling, and the first side edge mould and the second side edge mould are separated from each other, so that the target shoe sole can be obtained.

[0014] Compared with the prior art, the technical scheme has the following beneficial effects:

[0015] The shoe sole forming die has the first side die and the second side die, and the first inserting rod and the second inserting rod on the first clamping inner wall and the second clamping inner wall are connected with each other and located in the inserting groove in the inner core, so that the die is more stable when being closed, and the requirement that the front surface of the target shoe sole is provided with a flat contact surface is met; when demolding is needed, the shoe sole can be separated from the die by separating the side die, so that the operator can operate more conveniently and quickly during the closing, injection molding and demolding of the die, thereby simplifying the whole production process and improving the production efficiency.

[0016] The shoe sole forming die has the first side die and the second side die, and the first inserting rod and the second inserting rod on the first clamping inner wall and the second clamping inner wall are connected with each other and located in the inserting groove in the inner core, so that the die is more stable when being closed, and the requirement that the front surface of the target shoe sole is provided with a flat contact surface is met; when demolding is needed, the shoe sole can be separated from the die by separating the side die, so that the operator can operate more conveniently and quickly during the closing, injection molding and demolding of the die, thereby simplifying the whole production process and improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an exploded view of the shoe sole forming die.

[0018] Figure 2 It is a first side die perspective view.

[0019] Figure 3 It is a second side die perspective view.

[0020] Figure 4 It is a first side die side view.

[0021] Figure 5 It is a second side die side view.

[0022] Figure 6 It is an inner core perspective view.

[0023] Figure 7 It is an inner core side view.

[0024] Figure 8 It is a bottom die front view.

[0025] Figure 9 It is a first side die and a second side die schematic view. DETAILED DESCRIPTION

[0026] In order to further understand the content of the present application, the present application will be described in detail in combination with the drawings and embodiments.

[0027] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0028] In the description of the utility model, it should be noted that unless there is explicit provision and limitation, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, integral connection, or detachable connection, it can be mechanical connection or electrical connection, or the connection between two elements, it can be directly connected or indirectly connected through an intermediate medium, and those skilled in the art can understand the specific meaning of the above terms according to the specific situation.

[0029] In combination with the accompanying Figure 1 to the accompanying Figure 9 The utility model discloses a shoe sole forming mould convenient for demoulding, which comprises a first side edge mould 1, a second side edge mould 2, an inner core 3 and a bottom mould 4, one side of the first side edge mould 1 close to the second side edge mould 2 is provided with a first injection inner wall 11 and a first clamping inner wall 12 protruding from the first injection inner wall 11, one side of the second side edge mould 2 close to the first side edge mould 1 is provided with a second injection inner wall 21 and a second clamping inner wall 22 protruding from the second injection inner wall 21, and the first clamping inner wall 12 and the second clamping inner wall 22 are respectively provided with a first inserting rod 13 and a second inserting rod 23; one side of the inner core 3 close to the bottom mould 4 is provided with a first grain surface 31, and the first grain surface 31 is provided with an inserting groove 32; one side of the bottom mould 4 close to the inner core 3 is provided with a projection 41, and the projection 41 is provided with a second grain surface 42; when the first side edge mould 1 and the second side edge mould 2 are spliced, the first inserting rod 13 and the second inserting rod 23 are connected with each other and located in the inserting groove 32, the outer periphery of the inner core 3 is attached to the first clamping inner wall 12 and the second clamping inner wall 22 respectively, and the outer periphery of the projection 41 is attached to the first injection inner wall 11 and the second injection inner wall 21 respectively.

[0030] In the embodiment, the outer contour of the inner core 3 is matched with the first clamping inner wall 12 and the second clamping inner wall 22, and the outer contour of the projection 41 is matched with the first injection inner wall 11 and the second injection inner wall 21.

[0031] In the embodiment, the working principle of the sole forming mold is as follows: the first side mold 1 and the second side mold 2 are spliced on both sides of the inner core 3, the first inserting rod 13 and the second inserting rod 23 are connected in the inserting groove 32, the outer periphery of the inner core 3 is respectively matched with the first clamping inner wall 12 and the second clamping inner wall 22, the bottom mold 4 is buckled on the first side mold 1 and the second side mold 2, the outer periphery of the convex mold 41 is respectively matched with the first injection inner wall 11 and the second injection inner wall 21, so as to form a relatively closed sole injection cavity, material injection is carried out on the sole injection cavity, the bottom mold is opened after cooling, and the first side mold 1 and the second side mold 2 are separated from each other, so that the target sole can be obtained.

[0032] In the embodiment, the first clamping inner wall 12 and the second clamping inner wall 22 are respectively provided with the first inner core positioning column 14 and the second inner core positioning column 24, both sides of the inner core 3 are provided with inner core positioning holes 33, and the inner core positioning holes 33 are respectively matched with the first inner core positioning column 14 and the second inner core positioning column 24; the matching relationship between the inner core positioning holes 33 and the first inner core positioning column 14 and the second inner core positioning column 24 is used for positioning the inner core 3 on the first side mold 1 and the second side mold 2, so as to improve the connection precision among the three.

[0033] In the embodiment, the side surface of the first inserting rod 13 is provided with a clamping block 131, and the side surface of the second inserting rod 23 is provided with a clamping groove 231; when the first side mold 1 and the second side mold 2 are spliced, the clamping block 131 is connected in the clamping groove 231; the matching of the clamping block 131 and the clamping groove 231 makes the first inserting rod 13 and the second inserting rod 23 form a complete inserting rod, so as to avoid the generation of excess burrs during injection molding.

[0034] In the embodiment, the contact surfaces between the first inserting rod 13 and the second inserting rod 23 are matched.

[0035] In the embodiment, as shown in FIGS. 1 to 4, the first side mold 1 and the second side mold 2 are respectively provided with the first clamping inner wall 12 and the second clamping inner wall 22, the first clamping inner wall 12 and the second clamping inner wall 22 are respectively matched with the outer periphery of the inner core 3, and the first clamping inner wall 12 and the second clamping inner wall 22 are respectively provided with the first injection inner wall 11 and the second injection inner wall 21. Figure 4 As shown in FIGS. 1 to 4, the first side mold 1 and the second side mold 2 are respectively provided with the first clamping inner wall 12 and the second clamping inner wall 22, the first clamping inner wall 12 and the second clamping inner wall 22 are respectively matched with the outer periphery of the inner core 3, and the first clamping inner wall 12 and the second clamping inner wall 22 are respectively provided with the first injection inner wall 11 and the second injection inner wall 21. Figure 5 As shown in FIGS. 1 to 4, the first side mold 1 and the second side mold 2 are respectively provided with the first clamping inner wall 12 and the second clamping inner wall 22, the first clamping inner wall 12 and the second clamping inner wall 22 are respectively matched with the outer periphery of the inner core 3, and the first clamping inner wall 12 and the second clamping inner wall 22 are respectively provided with the first injection inner wall 11 and the second injection inner wall 21.

[0036] In the embodiment, the first side mold 1 is provided with a first mold positioning column 15 and a first mold positioning groove 16 at the front and rear ends of the side of the first side mold 1 close to the second side mold 2, and the second side mold 2 is provided with a second mold positioning column 25 and a second mold positioning groove 26 at the front and rear ends of the side of the second side mold 2 close to the first side mold 1, the first mold positioning column 15 is matched with the second mold positioning groove 26, and the second mold positioning column 25 is matched with the first mold positioning groove 16; the above structure is used to realize the positioning between the first side mold 1 and the second side mold 2.

[0037] In the embodiment, as shown in the accompanying drawings, the bottom mold 4 is provided with an injection channel, and an injection port 43 of the injection channel is located on the convex mold 41. Figure 8

[0038] In the embodiment, the first side mold 1, the second side mold 2, the inner core 3 and the bottom mold 4 are integrally formed, and the material can be stainless steel or aluminum alloy.

[0039] In the embodiment, through the design of the first side mold 1 and the second side mold 2, especially the first inserting rod 13 and the second inserting rod 23 on the first clamping inner wall 12 and the second clamping inner wall 22 are connected with each other and located in the inserting groove 32 of the inner core 3, the structure makes the mold more stable when being closed, and at the same time, the requirement that the front surface of the target shoe sole is provided with a flat contact surface is met; when demolding is needed, the separation of the side mold can be used to realize the separation of the shoe sole and the mold, so that the operator can operate more conveniently and quickly in the closing, injection and demolding processes of the mold, thereby simplifying the whole production process and improving the production efficiency.

[0040] The shoe sole forming mold is designed flexibly, the first texture surface 31 on the inner core 3 and the second texture surface 42 on the convex mold 41 on the bottom mold 4 can adapt to the forming requirement of complex patterns on the front and back surfaces of the shoe sole; due to the stability of the mold structure, especially in the demolding process, the close cooperation of the side mold and the inner core 3 through the inserting rod and the close cooperation of the convex mold 41 and the injection inner wall can effectively reduce the deformation of the shoe sole caused by pulling in the demolding process, and the quality of the shoe sole is ensured.

[0041] The above description of the utility model and its implementation mode is illustrative, and the description is not restrictive, and the embodiment shown in the drawings is only one of the embodiments of the utility model, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the utility model.​

Claims

1. A shoe sole forming mold facilitating demolding, characterized by, The first side edge mold is provided with a first injection inner wall and a first clamping inner wall protruding from the first injection inner wall on the side close to the second side edge mold, and the second side edge mold is provided with a second injection inner wall and a second clamping inner wall protruding from the second injection inner wall on the side close to the first side edge mold, and the first clamping inner wall and the second clamping inner wall are respectively provided with a first insertion rod and a second insertion rod; the inner core is provided with a first textured surface on the side close to the bottom mold, and the first textured surface is provided with an insertion slot; the bottom mold is provided with a convex mold on the side close to the inner core, and the convex mold is provided with a second textured surface; when the first side edge mold and the second side edge mold are combined, the first insertion rod and the second insertion rod are connected with each other and located in the insertion slot, the outer periphery of the inner core is fitted with the first clamping inner wall and the second clamping inner wall respectively, and the outer periphery of the convex mold is fitted with the first injection inner wall and the second injection inner wall respectively.

2. The shoe sole forming mold for facilitating demolding according to claim 1, wherein The first clamping inner wall and the second clamping inner wall are respectively provided with a first inner core positioning column and a second inner core positioning column, and the inner core is provided with an inner core positioning hole on both sides, which is matched with the first inner core positioning column and the second inner core positioning column respectively.

3. The shoe sole forming mold facilitating demolding according to claim 1, wherein The side surface of the first insertion rod is provided with a clamping block, and the side surface of the second insertion rod is provided with a clamping slot; when the first side edge mold and the second side edge mold are combined, the clamping block is connected in the clamping slot.

4. The shoe sole forming mold for facilitating demolding according to claim 3, wherein The contact surfaces between the first insertion rod and the second insertion rod are matched.

5. The shoe sole forming mold facilitating demolding according to claim 1, wherein The side close to the bottom mold of the first insertion rod and the second insertion rod is a flat surface, and the side away from the bottom mold of the first insertion rod and the second insertion rod is an arc surface.

6. The shoe sole forming mold facilitating demolding according to claim 1, wherein The side close to the second side edge mold of the first side edge mold is respectively provided with a first edge mold positioning column and a first edge mold positioning slot at the front and rear ends, and the side close to the first side edge mold of the second side edge mold is respectively provided with a second edge mold positioning column and a second edge mold positioning slot at the front and rear ends, the first edge mold positioning column is matched with the second edge mold positioning slot, and the second edge mold positioning column is matched with the first edge mold positioning slot.

7. The shoe sole forming mold for facilitating demolding according to any one of claims 1 to 6, wherein The bottom mold is provided with an injection channel, and the injection port of the injection channel is located on the convex mold.

8. The shoe sole forming mold for facilitating demolding according to any one of claims 1 to 6, wherein The first side edge mold, the second side edge mold, the inner core and the bottom mold are integrally formed.