A sole mold for facilitating adjustment of the thickness of a molded sole

Abstract

The application relates to the technical field of shoe sole molds, in particular to a shoe sole mold capable of conveniently adjusting the thickness of a molded shoe sole, which comprises a main mold body, a thickness adjusting assembly and a positioning mechanism. The main mold body is composed of an upper shell and a lower base, the thickness adjusting assembly is in adjustable cooperation with the main mold body through an intermediate adjusting plate, a thickness continuous adjustment is realized through an adjusting driving device, and the positioning mechanism ensures stability after adjustment and provides scale display. The application can simplify an operation process, improve production efficiency, enhance structural flexibility, reduce the dependence on mold precision, meet the efficient, flexible and accurate requirements of modern shoe production, and provide a new idea for the progress of the industry technology.

Description

Technical Field

[0001] This utility model belongs to the field of footwear manufacturing and mold design technology, specifically a sole mold that facilitates adjustment of the thickness of the formed sole. Background Technology

[0002] With the development of shoe sole mold manufacturing technology, various shoe sole molds have been widely used in footwear production. However, existing technologies still have some problems in practical applications, especially in adjusting the thickness of molded shoe soles. The flexibility and ease of operation of traditional molds still need to be improved. For example, some shoe sole molds on the market currently require the replacement of mold components or the addition of extra parts when adjusting the sole thickness. This not only increases the complexity of operation but also reduces production efficiency.

[0003] A search revealed a PU dual-density shoe sole mold with publication number CN103831924B, published on January 20, 2016. This design achieves different density soles by setting a middle frame between the bottom and top molds and utilizing the gaps between the protrusions on the foot area of ​​the side mold and other parts. However, this design relies on the precise fit between the middle frame and the side molds when adjusting the sole thickness. Changing the sole thickness requires reprocessing the mold or replacing some components, leading to complex operations and high costs. Furthermore, its relatively fixed structure makes it difficult to meet the demands of modern production for rapid adjustment of sole thickness.

[0004] A search revealed a double-layer shoe sole molding process and mold, published on June 25, 2024, with publication number CN115592997B. This design achieves adjustable double-layer sole thickness by adjusting the mold twice to form the first and second layer of the sole molding cavity. While this method can meet the production needs of soles with different thicknesses to some extent, the adjustment process requires step-by-step operations, and each adjustment requires injecting different raw materials and undergoing cooling, resulting in a long production cycle. Furthermore, this design places high demands on mold precision; errors during the adjustment process can lead to unstable finished product quality and affect production efficiency.

[0005] The aforementioned problems indicate that traditional shoe sole molds currently on the market suffer from complex operation, low efficiency, and strong dependence on mold precision when adjusting the thickness of the molded sole. Therefore, this utility model provides a shoe sole mold that facilitates the adjustment of the thickness of the molded sole, overcoming these shortcomings and achieving efficient, flexible, and precise sole thickness adjustment, thereby meeting the needs of modern footwear production. Utility Model Content

[0006] The purpose of this invention is to provide a shoe sole mold that facilitates the adjustment of shoe sole thickness. By optimizing the mold's structural design, it solves the problems of complex operation, low efficiency, and high dependence on mold precision in the prior art when adjusting shoe sole thickness. The specific technical solution of this invention will be described in detail below.

[0007] This utility model includes a main mold body, a thickness adjustment component, and a positioning mechanism. The main mold body is the core part of the overall mold, and its interior has a space area for molding the shoe sole; the thickness adjustment component is located on the inner side of the main mold body and forms an adjustable fit with the main mold body; the positioning mechanism is used to fix the position of the thickness adjustment component to ensure its stability during adjustment.

[0008] The main mold body consists of an upper shell and a lower base, which are fixedly installed together by bolts. The bottom of the upper shell has multiple evenly distributed guide grooves that extend horizontally and penetrate both side walls of the upper shell. Correspondingly, the top of the lower base has several slide rails that fit into the guide grooves, forming a sliding fit. This slide rail and guide groove design ensures that the main mold body maintains a stable relative position after assembly, while also providing basic support for subsequent thickness adjustments.

[0009] The thickness adjustment assembly is located within the internal space of the main mold body, and its core component is a movable intermediate adjustment plate. The outer contour dimensions of the intermediate adjustment plate match the inner cavity of the main mold body, and its edges are equipped with protruding limiting blocks that embed into guide grooves, thereby restricting the movement range of the intermediate adjustment plate. The upper and lower surfaces of the intermediate adjustment plate are respectively provided with multiple trapezoidal grooves. The depth and width of these grooves are designed according to the required sole thickness. The sloping design of the trapezoidal grooves helps reduce material flow resistance and ensures uniform filling during the sole molding process.

[0010] To achieve thickness adjustment, adjustment drive devices are installed on both sides of the intermediate adjustment plate. Each drive device consists of a handle, a lead screw, and a transmission block. One end of the lead screw is fixedly connected to the handle, and the other end passes through and is threaded into the transmission block. The transmission block is fixed to the side of the intermediate adjustment plate. When the handle is rotated, the lead screw drives the transmission block to move horizontally, thereby displacing the intermediate adjustment plate within the main mold cavity. By adjusting the position of the intermediate adjustment plate, the height of the internal space of the main mold can be changed, thus achieving flexible adjustment of the sole thickness.

[0011] The positioning mechanism is located on the outside of the main mold body and is used to lock the thickness adjustment component in its final position. The positioning mechanism includes a locking screw and a positioning pin. The locking screw passes through the outside of the main mold body and abuts against the limiting block of the intermediate adjustment plate to prevent it from shifting due to external forces. The positioning pin is inserted into a preset hole on the main mold body, further enhancing the stability of the entire system. In addition, the positioning mechanism is equipped with a scale fixed to the outer wall of the main mold body to visually display the currently adjusted sole thickness value, allowing operators to quickly confirm the adjustment result.

[0012] The working principle of this invention is as follows: First, the operator rotates the handle of the adjustment drive device, causing the lead screw to move the transmission block, which in turn pushes the intermediate adjustment plate to slide to the target position within the main mold cavity. During this process, the trapezoidal groove on the intermediate adjustment plate and the inner wall of the main mold together define a new sole forming space. Subsequently, the locking screw and positioning pin in the positioning mechanism are used to fix the intermediate adjustment plate in its current position, completing the thickness adjustment operation. Finally, raw material is injected into the main mold and cooled to obtain the finished sole of the desired thickness.

[0013] The beneficial effects of this utility model are:

[0014] By introducing an adjustment drive device and positioning mechanism, this invention simplifies the operation process, enabling continuous adjustment of the sole thickness without the need to replace mold components or add extra parts. Operators only need to rotate the handle to adjust the thickness, significantly reducing operational complexity.

[0015] The intermediate adjustment plate design improves production efficiency, allowing for the molding of soles of different thicknesses in a single clamping process, avoiding the time-consuming process of multiple mold disassemblies and reassemblies in traditional methods. Furthermore, the scale design of the positioning mechanism makes thickness adjustment more precise and faster, further shortening the production cycle.

[0016] The sliding fit design between the main mold body and the thickness adjustment component, which enhances structural flexibility, along with the inclined structure of the trapezoidal groove, significantly improves the mold's adaptability. Whether for single-layer or double-layer soles, this invention can easily meet production needs, demonstrating strong versatility and expandability.

[0017] The reduced reliance on mold precision is achieved by using a threaded connection between the lead screw and transmission block in the drive mechanism, which provides high self-locking performance and prevents loosening even after prolonged use. Simultaneously, the dual protection mechanism of locking screws and locating pins in the positioning mechanism effectively avoids finished product quality issues caused by accumulated errors.

[0018] In summary, this invention successfully solves the problems of complex operation, low efficiency, and strong dependence on mold precision in existing technologies by optimizing the internal structure of the mold and introducing an innovative adjustment mechanism. It not only meets the demands of modern footwear production for high efficiency, flexibility, and precision, but also provides new ideas for technological advancement in the industry. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 A schematic diagram of the outer structure of the main mold body;

[0021] Figure 3 This is a schematic diagram of the outer structure of the lead screw;

[0022] Figure 4 for Figure 1 A magnified diagram of region A.

[0023] The reference numerals in the attached drawings are as follows: 1. Main mold body; 2. Upper shell; 3. Lower base; 4. Thickness adjustment component; 5. Intermediate adjustment plate; 6. Adjustment drive device; 7. Handle; 8. Lead screw; 9. Transmission block; 10. Positioning mechanism; 11. Locking screw; 12. Scale; 13. Guide groove; 14. Limit block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] This utility model relates to a shoe sole mold that facilitates adjustment of the thickness of the molded shoe sole. The specific implementation method is described in conjunction with the attached diagram. Figure 1 and attached Figure 2 Please provide a detailed explanation. For example... Figure 1As shown, the shoe sole mold includes a main mold body 1, a thickness adjustment component 4, and a positioning mechanism 10. The main mold body 1 consists of an upper shell 2 and a lower base 3, which are fixedly installed by bolts. The bottom of the upper shell 2 has multiple evenly distributed guide grooves 13, which extend horizontally and penetrate both side walls of the upper shell 2. The top of the lower base 3 has several slide rails at corresponding positions, which are embedded in the guide grooves 13 to form a sliding fit. This design of the slide rails and guide grooves 13 allows the main mold body 1 to maintain a stable relative position after assembly, while also providing basic support for subsequent thickness adjustment.

[0027] The thickness adjustment component 4 is located within the internal space of the main mold body 1, and its core component is a movable intermediate adjustment plate 5. The outer contour dimensions of the intermediate adjustment plate 5 match the inner cavity of the main mold body 1, and it has protruding limiting blocks 14 at its edges. The limiting blocks 14 are embedded in the guide grooves 13, thereby limiting the movement range of the intermediate adjustment plate 5. The upper and lower surfaces of the intermediate adjustment plate 5 are respectively provided with multiple trapezoidal grooves. The depth and width of these grooves are designed according to the required sole thickness. The inclined design of the trapezoidal grooves helps reduce material flow resistance and ensures uniform filling during the sole molding process. To achieve the thickness adjustment function, adjustment drive devices 6 are provided on both sides of the intermediate adjustment plate 5. Figure 2 As shown, the adjustment drive device 6 consists of a handle 7, a lead screw 8, and a transmission block 9. One end of the lead screw 8 is fixedly connected to the handle 7, and the other end passes through the transmission block 9 and is threaded into it. The transmission block 9 is fixed to the side of the intermediate adjustment plate 5. When the handle 7 is rotated, the lead screw 8 drives the transmission block 9 to move horizontally, thereby pushing the intermediate adjustment plate 5 to move within the cavity of the main mold body 1. By adjusting the position of the intermediate adjustment plate 5, the height of the internal space of the main mold body 1 can be changed, thus achieving flexible adjustment of the sole thickness.

[0028] The positioning mechanism 10 is located on the outside of the main mold body 1 and is used to lock the final position of the thickness adjustment component 4. The positioning mechanism 10 includes a locking screw 11 and a positioning pin. The locking screw 11 passes through the outside of the main mold body 1 and abuts against the limiting block 14 of the intermediate adjustment plate 5 to prevent it from shifting due to external force. The positioning pin is inserted into a preset hole on the main mold body 1 to further enhance the stability of the entire system. In addition, the positioning mechanism 10 is also equipped with a scale 12, which is fixed on the outer wall of the main mold body 1 to visually display the currently adjusted sole thickness value, so that the operator can quickly confirm the adjustment result.

[0029] In actual operation, firstly, by rotating the handle 7 of the drive device 6, the lead screw 8 drives the transmission block 9 to move, thereby pushing the intermediate adjustment plate 5 to slide to the target position within the inner cavity of the main mold body 1. During this process, the trapezoidal groove on the intermediate adjustment plate 5 and the inner wall of the main mold body 1 together define a new sole forming space. Subsequently, the locking screw 11 and positioning pin in the positioning mechanism 10 are used to fix the intermediate adjustment plate 5 in its current position, completing the thickness adjustment operation. Finally, raw material is injected into the main mold body 1 and cooled to obtain the finished sole of the required thickness.

[0030] The connection between the upper shell 2 and the lower base 3 of the main mold body 1 is achieved by bolts, ensuring the stability and reliability of the overall structure. The guide groove 13 not only serves as a limit but also provides a precise guide path for the movement of the intermediate adjusting plate 5, avoiding uneven thickness caused by movement deviation. The intermediate adjusting plate 5 in the thickness adjusting assembly 4 is embedded in the guide groove 13 by the limiting block 14, allowing it to slide smoothly in the horizontal direction without deviation. The lead screw 8 and the transmission block 9 in the adjusting drive device 6 are threaded together, providing high self-locking performance and preventing loosening even after long-term use. The rotation of the handle 7 is directly converted into the linear displacement of the intermediate adjusting plate 5, making operation simple and highly accurate.

[0031] The positioning mechanism 10 employs a dual protection mechanism of locking screw 11 and positioning pin, effectively preventing finished product quality issues caused by error accumulation. Locking screw 11 passes through the outside of the main mold body 1 and abuts against the limiting block 14 of the intermediate adjusting plate 5, ensuring that it will not shift due to external force after adjustment. The positioning pin is inserted into a preset hole on the main mold body 1, further enhancing the stability of the entire system. A scale 12 is fixed to the outer wall of the main mold body 1 to visually display the currently adjusted sole thickness value, facilitating quick confirmation of the adjustment results by the operator. The design of the scale 12 makes thickness adjustment more precise and faster, further shortening the production cycle.

[0032] In practical applications, the shoe sole mold of this invention can be flexibly adjusted according to different shoe sole thickness requirements. For example, when producing a shoe sole with a thickness of 10mm, the operator can rotate the handle 7 to move the intermediate adjusting plate 5 to the 10mm position on the corresponding scale 12, and then fix it with the locking screw 11 and the positioning pin. Subsequently, raw material is injected into the main mold body 1 and cooled to obtain the finished shoe sole that meets the requirements. Similarly, when producing shoe soles of other thicknesses, the above steps can be repeated to complete the adjustment. This design not only simplifies the operation process but also significantly improves production efficiency.

[0033] Furthermore, the shoe sole mold of this invention offers significant structural flexibility. Whether it's a single-layer or double-layer sole, production requirements can be easily met by adjusting the position of the intermediate adjusting plate 5. The trapezoidal groove design on the intermediate adjusting plate 5 helps reduce material flow resistance, ensuring uniform filling during the sole molding process. Simultaneously, the cooperative design of the guide groove 13 and the limiting block 14 ensures the stability of the intermediate adjusting plate 5 during movement, avoiding uneven thickness caused by positional deviations.

[0034] This invention's shoe sole mold, through optimized internal structural design and the introduction of an innovative adjustment mechanism, successfully solves the problems of complex operation, low efficiency, and strong dependence on mold precision in existing technologies. The sliding fit design between the main mold body 1 and the thickness adjustment component 4, as well as the inclined structure of the trapezoidal groove, significantly improves the mold's adaptability. The lead screw 8 and transmission block 9 in the adjustment drive device 6 adopt a threaded fit, possessing high self-locking performance and preventing loosening even after long-term use. The dual protection mechanism of the locking screw 11 and positioning pin in the positioning mechanism 10 effectively avoids finished product quality problems caused by error accumulation.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A shoe sole mold for easily adjusting the thickness of the molded shoe sole, characterized in that, It includes a main mold body (1), a thickness adjustment component (4) and a positioning mechanism (10). The main mold body (1) is composed of an upper shell (2) and a lower base (3). The upper shell (2) and the lower base (3) are fixed by bolts. The thickness adjustment component (4) is located inside the main mold body (1) and the positioning mechanism (10) is located outside the main mold body (1).

2. The shoe sole mold for easily adjusting the thickness of the molded shoe sole according to claim 1, characterized in that, The bottom of the upper shell (2) is provided with multiple evenly distributed guide grooves (13). The guide grooves (13) extend horizontally and penetrate the two side walls of the upper shell (2). The top of the lower base (3) is provided with a slide rail, which is embedded in the guide groove (13) to form a sliding fit.

3. The shoe sole mold for easily adjusting the thickness of the molded shoe sole according to claim 1, characterized in that, The thickness adjustment component (4) includes an intermediate adjustment plate (5) and an adjustment drive device (6). The outer contour size of the intermediate adjustment plate (5) matches the inner cavity of the main mold body (1). The edge of the intermediate adjustment plate (5) is provided with a protruding limiting block (14), which is embedded in the guide groove (13).

4. A shoe sole mold for easily adjusting the thickness of the molded shoe sole according to claim 3, characterized in that, The upper and lower surfaces of the middle adjustment plate (5) are provided with multiple trapezoidal grooves, and the depth and width of the trapezoidal grooves are designed according to the thickness requirements of the shoe sole.

5. A shoe sole mold for easily adjusting the thickness of the molded shoe sole according to claim 3, characterized in that, The adjustment drive device (6) includes a handle (7), a lead screw (8) and a transmission block (9). One end of the lead screw (8) is fixedly connected to the handle (7), and the other end passes through the transmission block (9) and is threadedly engaged with it. The transmission block (9) is fixed on the side of the intermediate adjustment plate (5).

6. A shoe sole mold for easily adjusting the thickness of the molded shoe sole according to claim 1, characterized in that, The positioning mechanism (10) includes a locking screw (11) and a positioning pin. The locking screw (11) passes through the outside of the main mold body (1) and abuts against the limiting block (14) of the intermediate adjustment plate (5). The positioning pin is inserted into the preset hole on the main mold body (1).

7. A shoe sole mold for easily adjusting the thickness of the molded shoe sole according to claim 6, characterized in that, The positioning mechanism (10) also includes a scale (12), which is fixed on the outer wall of the main mold body (1) and is used to display the currently adjusted sole thickness value.

8. A shoe sole mold for easily adjusting the thickness of the molded shoe sole according to claim 1, characterized in that, The intermediate adjustment plate (5) is embedded in the guide groove (13) through the limiting block (14) and slides horizontally in the inner cavity of the main mold body (1).

9. A shoe sole mold for easily adjusting the thickness of the molded shoe sole according to claim 3, characterized in that, The lead screw (8) in the adjustment drive device (6) and the transmission block (9) are connected by a threaded connection. The rotation of the handle (7) causes the intermediate adjustment plate (5) to undergo linear displacement.

10. A shoe sole mold for easily adjusting the thickness of the molded shoe sole according to claim 1, characterized in that, The height of the internal space of the main mold body (1) can be changed by adjusting the position of the middle adjustment plate (5), thereby realizing the adjustment of the sole thickness.

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