Shoe sole injection molding mold

By designing a combination of mold body, top cover, ventilation holes and flat plate, the problems of adjusting different sizes and air bubble defects in shoe sole injection molds were solved, achieving consistent shoe sole dimensions and efficient molding.

CN224060364UActive Publication Date: 2026-03-31TAIZHOU BOYANG SHOES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing shoe sole injection molding molds cannot be adjusted to different sizes, resulting in inconsistent shoe sole dimensions and failing to prevent defects such as bubbles and pores on the surface of the product.

Method used

A shoe sole injection molding mold was designed, comprising a mold body, a top cover, ventilation holes and a flat plate. The ventilation holes and connecting holes prevent air bubbles and pore defects, and the mold size can be adjusted by placing grooves and fixing rods to ensure consistent dimensions.

Benefits of technology

This achieves consistent shoe sole dimensions and defect-free product surface molding, improving mold utilization efficiency and molding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sole injection molding mold, which relates to the field of shoe processing and comprises a mold main body, a placing groove is arranged at the upper end of the mold main body, an adjusting mold is arranged in the placing groove, and fixing rods are arranged at the front end and the rear end of the adjusting mold. Through the arrangement of the mold main body, the top cover, the air holes, the leveling plate and the communicating holes, when a shoe sole is subjected to mold injection molding, the defects of bubbles, air holes and the like can be prevented from being formed on the surface of a product through the air holes in the device and the communicating holes formed in the surface of the leveling plate and the reserved holes in the injection molding process; through the arrangement of the mold main body, the placement grooves, the adjusting molds and the fixing rods, the adjusting molds of different sizes can be replaced and fixed through the placement grooves formed in the device, the molds of shoe soles can be replaced according to different sizes during use, and the use efficiency of the forming mold is improved.
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Description

Technical Field

[0001] This utility model relates to the field of shoe processing, specifically to a shoe sole injection molding mold. Background Technology

[0002] The development of shoe sole injection molding dies has gradually evolved with the continuous advancement of footwear manufacturing technology and the increasing market demands for product quality and production efficiency. Before the widespread application of injection molding dies, shoe sole manufacturing was mostly carried out manually or with simple mechanical assistance, such as compression molding and vulcanization molding. These processes suffer from low production efficiency, poor product precision, and unstable quality. Compression molding requires manual placement of the sole material into the mold, followed by shaping through pressure and heat. The manual operation during this process introduces significant errors, making it difficult to ensure that the size and shape of each shoe sole are completely consistent. Therefore, a shoe sole injection molding die is needed.

[0003] An existing shoe sole injection molding mold has several drawbacks. It cannot be adjusted or replaced when the shoe sole is being injection molded to different sizes. It also cannot guarantee that the size and shape of each shoe sole are exactly the same, and it cannot prevent defects such as bubbles and pores from forming on the surface of the product. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a shoe sole injection molding mold to solve the problems that existing shoe sole injection molding molds cannot be adjusted and replaced when the shoe sole is being injection molded, cannot guarantee that the size and shape of each shoe sole are exactly the same, and cannot prevent defects such as bubbles and pores from forming on the surface of the product.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shoe sole injection molding mold, comprising a mold body, a placement groove at the upper end of the mold body, an adjusting mold installed inside the placement groove, fixing rods installed at both ends of the adjusting mold, a limit rod installed at the upper end of the mold body, a top cover installed at the upper end of the mold body, a vent hole on the surface of the top cover, an injection hole at the upper end of the top cover, fastening rods installed at the four corners of the top cover, and a flat plate installed at the lower end of the top cover, with a connecting hole on the surface of the flat plate.

[0006] Preferably, the adjusting mold is threadedly connected to the mold body via a fixing rod, and the adjusting mold is engaged with the mold body via a placement groove.

[0007] Preferably, the top cover is threadedly connected to the mold body via a fastening rod, and the top cover fits tightly against the mold body.

[0008] Preferably, the vent holes are arranged symmetrically with respect to the central axis of the top cover, and the top cover is an open-hole type.

[0009] Preferably, the top cover is movably connected to the flat plate, and the connecting holes are symmetrically arranged with respect to the central axis of the flat plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model, through the mold body, top cover, ventilation holes, flat plate and connecting holes, can prevent the formation of defects such as bubbles and air holes on the surface of the product during the injection molding of shoe soles by means of the ventilation holes in the device and the connecting holes opened on the surface of the flat plate. It can also ensure that the size and shape of each pair of shoe soles are exactly the same.

[0012] This utility model, through the setting of a mold body, a placement groove, an adjusting mold, and a fixing rod, allows for the replacement and fixing of adjusting molds of different sizes via the placement groove installed in the device. It enables the molds for shoe soles to be changed to different sizes during use, thereby improving the efficiency of the molding mold. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present utility model;

[0014] Figure 2 This is a cross-sectional view of the main body of the mold of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the mold body and the adjusting mold of this utility model;

[0016] Figure 4 This is a bottom view of the top cover of this utility model.

[0017] In the diagram: 1. Mold body; 2. Placement slot; 3. Adjustment mold; 4. Fixing rod; 5. Limiting rod; 6. Top cover; 7. Vent hole; 8. Injection hole; 9. Fastening rod; 10. Flat plate; 11. Connecting hole. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] The embodiments of this utility model will be described below based on its overall structure.

[0020] like Figures 1 to 4As shown, this shoe sole injection molding mold includes a mold body 1. The upper end of the mold body 1 is provided with a placement groove 2. An adjustment mold 3 is installed inside the placement groove 2. Fixing rods 4 are installed at both the front and rear ends of the adjustment mold 3. The adjustment mold 3 is threadedly connected to the mold body 1 through the fixing rods 4, and the adjustment mold 3 is engaged with the mold body 1 through the placement groove 2. The adjustment mold 3 installed in the device can be fixed by the fixing rods 4. Different adjustment molds 3 can be replaced to adapt to shoe molds of different sizes and ensure that the sole size of each pair of shoes is the same.

[0021] like Figure 1 and Figure 2 As shown, a limit rod 5 is installed on the upper end of the mold body 1, and a top cover 6 is installed on the upper end of the mold body 1. A vent hole 7 is opened on the surface of the top cover 6, and an injection hole 8 is opened on the upper end of the top cover 6. The vent hole 7 is symmetrically arranged with the central axis of the top cover 6, and the top cover 6 is an open type. Fastening rods 9 are installed at the four corners of the top cover 6. A flat plate 10 is installed at the lower end of the top cover 6. A connecting hole 11 is opened on the surface of the flat plate 10. The top cover 6 and the flat plate 10 are movably connected, and the connecting hole 11 is symmetrically arranged with the central axis of the flat plate 10. The vent hole 7 and the connecting hole 11 left in the device can prevent defects such as bubbles and pores from forming on the surface of the product.

[0022] In use, according to the required size of the molded sole, the shoe sole adjustment mold 3 of different shapes and sizes is placed inside the placement groove 2 of the mold body 1. The placement groove 2 inside the mold body 1 can hold the adjustment mold 3 of different sizes. After placement, the adjustment mold 3 is inserted into the mold body 1 from the front and rear ends by means of the fixing rod 4, and the adjustment mold 3 is fixed to the mold body 1 by means of the fixing rod 4.

[0023] The limiting rods 5 installed at the four corners of the mold body 1 are connected by springs in the middle. When the top cover 6 is attached to the mold body 1, it is fixed by tightening the fastening rods 9 at the four corners of the top cover 6. The top cover 6 is pre-connected to the mold body 1 by the limiting rods 5, and the top cover 6 is fixedly attached to the mold body 1 by the fastening rods 9 when the device is in use. The top cover 6 has a high injection hole 8 at its upper end. After the material is attached, it is injected through the injection hole 8. After injection, the molded material enters the adjustment mold 3 inside the placement slot 2 of the device. The flat plate 10 is pushed from the lower end of the top cover 6, leaving a gap, above the mold body 1. After pushing, the excess material inside the adjustment mold 3 can be pushed out. After being pushed out, the flat plate 10 will stay between the top cover 6 and the mold body 1. The connecting hole 11 on the surface of the flat plate 10 and the vent hole 7 on the surface of the top cover 6 prevent air bubbles and pores from appearing in the molding process. Finally, after molding is completed, the top cover 6 is opened and the molded sole is taken out. This completes the use of the device. The contents not described in detail in this specification are known prior art to those skilled in the art.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sole injection moulding mould comprising a mould body (1), characterised in that: The upper end of the mold body (1) is provided with a placing groove (2), the inside of the placing groove (2) is provided with an adjusting mold (3), the front and rear ends of the adjusting mold (3) are provided with a fixing rod (4), the upper end of the mold body (1) is provided with a limiting rod (5), the upper end of the mold body (1) is provided with a top cover (6), the surface of the top cover (6) is provided with a ventilation hole (7), the upper end of the top cover (6) is provided with an injection hole (8), the four corners of the top cover (6) are provided with a fastening rod (9), the lower end of the top cover (6) is provided with a flat plate (10), and the surface of the flat plate (10) is provided with a communication hole (11).

2. The shoe sole injection molding mold according to claim 1, wherein: The adjusting mold (3) is screwed with the mold body (1) through the fixing rod (4), and the adjusting mold (3) is clamped and connected with the mold body (1) through the placing groove (2).

3. The shoe sole injection molding mold according to claim 1, wherein: The top cover (6) is screwed with the mold body (1) through the fastening rod (9), and the top cover (6) is closely attached to the mold body (1).

4. The shoe sole injection molding mold of claim 1, wherein: The ventilation hole (7) is symmetrically arranged about the central axis of the top cover (6), and the top cover (6) is provided in a hole type.

5. The shoe sole injection molding mold of claim 1, wherein: The top cover (6) is movably connected with the flat plate (10), and the communication hole (11) is symmetrically arranged about the central axis of the flat plate (10).