A shoe sole mold

Abstract

This utility model belongs to the field of footwear manufacturing technology, specifically referring to a shoe sole mold; it includes a lower mold and an upper mold, and further includes: a fixed base, fixedly mounted on the lower mold; a rotating base, fixedly mounted on the upper mold and hinged to the fixed base via a rotating shaft; an angle locking assembly, disposed between the fixed base and the rotating base, comprising angle limiting plates symmetrically arranged on both sides of the rotating base, each angle limiting plate having multiple locking holes distributed circumferentially, partially protruding from both sides of the rotating base, and a positioning body capable of selectively engaging any of the locking holes; and an elastic reset member, used to apply elastic force to the angle limiting plates to maintain the engagement or disengagement of the positioning body and the locking holes. By adopting the above design scheme, a shoe sole mold with multi-angle positioning and holding function and safe and convenient operation can be obtained.

Description

Technical Field

[0001] This utility model belongs to the field of footwear manufacturing technology, and specifically refers to a shoe sole mold. Background Technology

[0002] Shoe sole molds are core forming equipment in footwear production, widely used in the manufacture of various footwear. Their main purpose is to press raw shoe sole materials into semi-finished products with predetermined shapes and patterns by closing the upper and lower molds, ensuring dimensional accuracy and performance. However, existing shoe sole molds with hinged structures only allow the upper mold to be fixed in a fully closed or fully open state, lacking multi-angle positioning and holding capabilities. In practice, during raw material feeding, mold cavity cleaning, or molding inspection, the upper mold must be manually supported to maintain the required angle, increasing labor intensity, posing safety hazards, and affecting operational convenience. Therefore, there is an urgent need for a shoe sole mold with multi-angle positioning and holding capabilities that is safe and convenient to operate. Utility Model Content

[0003] This invention solves the problems mentioned in the background art by setting a fixed base in the lower mold and a rotating base in the upper mold and hinged together by a rotating shaft, and by using an angle locking assembly including an angle limiting plate, a positioning body and an elastic reset component, so that the upper mold can selectively lock into different locking holes to achieve multi-angle positioning and retention.

[0004] The purpose of this utility model is achieved as follows: a shoe sole mold, including a lower mold and an upper mold, further comprising: A fixed base is fixedly mounted on the lower mold. A rotating base is fixed to the upper mold and hinged to the fixed base via a rotating shaft; An angle locking assembly is disposed between the fixed base and the rotating base. It includes angle limiting plates symmetrically disposed on both sides of the rotating base. Each angle limiting plate has multiple locking holes distributed circumferentially and a positioning body that is partially protruding on both sides of the rotating base and can selectively engage with any of the locking holes. An elastic reset element is used to apply an elastic force to the angle limiting plate to maintain the engagement or disengagement of the positioning body and the locking hole.

[0005] The present invention is further configured such that the fixed base includes two fixed rods spaced apart, and the rotating shaft is located between the two fixed rods and fixedly connected to the rotating base.

[0006] The present invention is further configured such that the positioning body is a spherical structure and its surface is adapted to the inner wall of the locking hole.

[0007] The present invention is further configured such that ball seats are provided on both sides of the rotating shaft, and the positioning body, which is configured as a spherical structure, is housed in the ball seats, with its protruding end facing the angle limiting plate.

[0008] The present invention is further configured such that an elastic support plate and an elastic reset member are sequentially provided on the outer side of the angle limiting plate, and the edges of the elastic support plate and the angle limiting plate are provided with slots, and the slots are slidably engaged with the fixing protrusions provided on the inner side of the fixing rod.

[0009] The present invention is further configured to include a compression adjusting component, the compression adjusting component comprising: The two end caps are slidably connected to the fixing protrusions of the two fixing rods, respectively; An adjusting screw is fixed to one end cap, and its end is threaded and threaded to the other end cap. It is used to adjust the compression of the elastic reset element.

[0010] The present invention is further configured such that the elastic reset member is a helical spring, with its two ends respectively abutting against the elastic support plate and the end cap.

[0011] By adopting the above technical solution, the beneficial effects that this utility model can achieve are: 1. By hingedly connecting the rotating base and the fixed base, and selectively engaging the locking hole of the angle limiting plate with the positioning body, the upper mold can be positioned and held at multiple angles, improving the convenience of operation.

[0012] 2. The elastic reset component maintains a stable fit between the positioning body and the locking hole, preventing accidental flipping of the upper mold, reducing operational safety hazards, and improving safety in use. 3. The compression adjustment component adjusts the compression amount of the elastic reset component to adapt to different operating torque requirements, and the coordinated operation of all components improves the mold's adaptability and flexibility. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a utility model Figure 2 A magnified structural diagram of part A; Figure 4 This is an exploded view of the present invention. The reference numerals in the figure are as follows: 1. Lower mold; 2. Upper mold; 3. Fixed base; 30. Fixed rod; 4. Rotating base; 40. Rotating shaft; 5. Angle locking assembly; 50. Angle limiting plate; 51. Locking hole; 52. Positioning body; 6. Elastic reset component; 7. Ball seat; 8. Elastic support plate; 9. Groove; 10. Fixed protrusion; 11. Compression adjusting component; 110. End cap; 111. Adjusting screw. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-4 : Example 1: This embodiment provides a shoe sole mold, including a lower mold 1 and an upper mold 2, and further includes: The fixed base 3 is fixed to the lower mold 1; The rotating base 4 is fixed to the upper mold 2 and hinged to the fixed base 3 via the rotating shaft 40; An angle locking assembly 5 is disposed between the fixed base 3 and the rotating base 4. It includes angle limiting plates 50 symmetrically disposed on both sides of the rotating base 4. Each angle limiting plate 50 has multiple locking holes 51 distributed circumferentially, and a positioning body 52 that is partially protruding on both sides of the rotating base 4 and can selectively engage any of the locking holes 51. The elastic reset member 6 is used to apply an elastic force to the angle limiting plate 50 to maintain the engagement or disengagement of the positioning body 52 and the locking hole 51.

[0015] The lower mold 1 provides bottom support for the mold cavity of the shoe sole forming process, accommodates the shoe sole material, and cooperates with the upper mold 2 to complete the pressing and forming. Its structure is a plate-like structure with a shoe sole forming cavity, and its shape is adapted to the bottom contour of the shoe sole to be formed. Located below the mold, it serves as the mounting carrier for the fixed base 3, and is connected to the fixed base 3 by welding or other fixed connections. During operation, it closes with the upper mold 2 to form a complete forming space.

[0016] The upper mold 2 applies pressure when closed with the lower mold 1, causing the raw material inside the mold cavity to be molded into a pre-set shoe sole structure. Its construction also includes a mold cavity structure adapted to the upper contour of the shoe sole, with a shape matching the mold cavity of the lower mold 1. Located above the mold, it is fixedly connected to the rotating base 4 by welding or other means. The rotating base 4 and the fixed base 3 are hinged to achieve opening and closing. When closed, it fits against the lower mold 1 to form a sealed mold cavity.

[0017] The rotating base 4 is used to transmit the flipping action of the upper mold 2, driving the upper mold 2 to rotate around the hinge axis, and at the same time providing an installation base for the positioning body 52. ​​Its structure is a connection structure adapted to the upper mold 2 and the fixed base 3. It is fixedly installed on the side of the upper mold 2 near the lower mold 1, and is hinged to the fixed base 3 through the rotating shaft 40, and flips synchronously with the upper mold 2.

[0018] The rotating shaft 40 provides a fulcrum for the rotating base 4, allowing the upper mold 2 to rotate flexibly around it. It is a long, cylindrical rod structure. It extends laterally through the rotating base 4 and is integrally fixed thereto. Its two ends are hinged to corresponding mounting points on the fixed base 3, forming a freely rotatable connection structure that provides stable rotational support for the opening and closing of the upper mold 2.

[0019] The angle locking assembly 5 is used to keep the upper mold 2 fixed at multiple preset angles through component cooperation, preventing accidental flipping. It includes an angle limiting plate 50 and a positioning body 52, which cooperate to achieve locking and unlocking actions.

[0020] The angle limiting plate 50 provides multiple positioning points through locking holes 51, providing support for the positioning body 52 to fit. It has a sheet-like structure with multiple locking holes 51 distributed circumferentially on its surface. It is symmetrically arranged on both sides of the rotating base 4 and is relatively fixed to the fixed base 3. Its rotation is restricted by related components, providing a stable fitting foundation for the positioning body 52.

[0021] The locking hole 51 is used to engage with the positioning body 52 to restrict the rotation of the rotating base 4 and fix the angle of the upper mold 2. Its structure is a hole-like structure that penetrates the angle limiting plate 50. The shape is adapted to the protruding end of the positioning body 52 and is distributed along the circumference of the angle limiting plate 50. Each hole position corresponds to a preset opening and closing angle of the upper mold 2. After engaging with the positioning body 52, it can prevent the rotating base 4 from continuing to rotate.

[0022] The positioning body 52 is used to selectively engage with different locking holes 51 to fix the upper mold 2 at corresponding angles. Its structure is a block-shaped structure that partially protrudes from the outside of the rotating base 4. Its shape is adapted to the inner wall contour of the locking hole 51. It is located on both sides of the rotating base 4 and is fixedly connected to the rotating base 4. It rotates synchronously with the rotating base 4 and can engage or disengage from the locking hole 51 under the action of external force or elastic force.

[0023] The elastic reset member 6 is used to apply a continuous elastic force to the angle limiting plate 50 to ensure that the engagement or disengagement state of the positioning body 52 and the locking hole 51 is stable. It generates a pre-tightening force through its own elastic deformation to provide continuous elastic support for the engagement of the positioning body 52.

[0024] When the shoe sole mold is in operation, the upper mold 2 flips and opens / closes via a hinged structure between the rotating base 4 and the fixed base 3. When the angle of the upper mold 2 needs to be adjusted, an external force is applied to it, which is transmitted to the positioning body 52, causing the positioning body 52 to overcome the pre-tightening force of the elastic reset member 6 and disengage from the current locking hole 51. As the upper mold 2 continues to flip, the rotating base 4 drives the positioning body 52 to move circumferentially along the angle limiting plate 50. When it rotates to a preset angle, the positioning body 52 automatically engages with the corresponding locking hole 51 under the elastic force of the elastic reset member 6, thus fixing the angle. The elastic reset member 6 continuously applies an elastic force to the angle limiting plate 50, maintaining the stable engagement of the positioning body 52 and the locking hole 51 and preventing the upper mold 2 from rotating accidentally. If the angle needs to be adjusted again, simply apply an external force to disengage the positioning body 52 from the hole, and repeat the above actions to achieve the positioning and holding of the upper mold 2 at different preset angles.

[0025] Example 2: This embodiment provides a shoe sole mold, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0026] Furthermore, the fixed base 3 includes two spaced-apart fixed rods 30, and the rotating shaft 40 is located between the two fixed rods 30 and is fixedly connected to the rotating base 4.

[0027] By adopting the above technical solution, the fixed base 3 is configured as two spaced rod-shaped fixed rods 30. Both fixed rods 30 are fixedly connected to the lower mold 1 by bolts. The rotating shaft 40 is transversely inserted between the two fixed rods 30, and its two ends are connected to the fixed rods 30 by hinges. The middle section of the shaft is fixedly connected to the rotating base 4 by welding or bolts. The symmetrical structure of the double fixed rods 30 can provide stable support for the rotating shaft 40, avoiding unilateral force deviation when the rotating shaft 40 drives the rotating base 4 to rotate. At the same time, the clear hinge and fixed connection method can ensure that the hinge structure always rotates along the preset trajectory during the rotation of the upper mold 2 driven by the rotating base 4, maintaining the cooperation stability of the angle locking component 5.

[0028] Example 3: This embodiment provides a shoe sole mold, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0029] Furthermore, the positioning body 52 has a spherical structure, and its surface is adapted to the inner wall of the locking hole 51.

[0030] By adopting the above technical solution, the positioning body 52 is set as a spherical structure. The spherical positioning body 52 is housed in the ball seats 7 on both sides of the rotating shaft 40 and is fixedly connected to the ball seats 7. Its surface is adapted to the inner wall of the locking hole 51. The spherical structure can reduce the frictional resistance between the positioning body 52 and the hole wall when it is inserted into or removed from the locking hole 51, ensuring that the positioning body 52 can smoothly complete the engagement or disengagement action with the locking hole 51 at different positions during the rotation of the rotating base 4. At the same time, the adapted surface shape can enhance the fit of the positioning body 52 and the locking hole 51 after engagement, and maintain the stability of the angle locking state of the upper mold 2.

[0031] Example 4: This embodiment provides a shoe sole mold, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0032] Furthermore, ball seats 7 are provided on both sides of the rotating shaft 40, and the positioning body 52, which is configured as a spherical structure, is housed in the ball seats 7, with its protruding end facing the angle limiting plate 50.

[0033] By adopting the above technical solution, the purpose of this design is to set grooved ball seats 7 on both sides of the rotating shaft 40. The ball seats 7 and the rotating shaft 40 are fixedly connected by integral molding or welding. The spherical positioning body 52 is completely housed inside the ball seat 7, with only the protruding end facing the angle limiting plate 50. The groove shape of the ball seat 7 can stably accommodate and limit the spherical positioning body 52, preventing the positioning body 52 from falling off or shifting during the rotation of the rotating base 4. At the same time, this connection method can ensure that the positioning body 52 has a certain amount of room to move within the ball seat 7, so that it can smoothly engage or disengage from the locking hole 51 on the angle limiting plate 50, maintaining the smoothness and stability of the angle locking action.

[0034] Example 5: This embodiment provides a shoe sole mold, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0035] Furthermore, an elastic support plate 8 and an elastic reset member 6 are sequentially provided on the outer side of the angle limiting plate 50. The elastic support plate 8 and the edge of the angle limiting plate 50 are provided with a groove 9, and the groove 9 is slidably engaged with the fixing protrusion 10 provided on the inner side of the fixing rod 30.

[0036] By adopting the above technical solution, a sheet-like elastic support plate 8 and an elastic reset member 6 are sequentially arranged on the outside of the angle limiting plate 50. The elastic support plate 8 and the edge of the angle limiting plate 50 are provided with a groove 9. The groove 9 is slidably engaged with the fixing protrusion 10 on the inner side of the fixing rod 30. The elastic support plate 8 achieves guiding engagement with the fixing base 3 through the sliding connection between the groove 9 and the fixing protrusion 10. This not only provides a stable support surface for the elastic reset member 6 and evenly transmits the elastic force of the elastic reset member 6 to the angle limiting plate 50, but also ensures that the angle limiting plate 50 moves along a preset direction when subjected to force through the sliding limit of the groove 9 and the fixing protrusion 10, avoiding deviation and maintaining the stability of the engagement or disengagement of the positioning body 52 and the locking hole 51.

[0037] Example 6: This embodiment provides a shoe sole mold, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0038] Furthermore, it also includes a compression adjusting member 11, the compression adjusting member 11 comprising: The two end caps 110 are slidably connected to the fixing protrusions 10 of the two fixing rods 30, respectively; The adjusting screw 111 is fixed on one end cover 110, and its end is provided with a threaded part and is threadedly connected to the other end cover 110. It is used to adjust the compression of the elastic reset member 6.

[0039] By adopting the above technical solution, a compression adjustment component 11 composed of end caps 110 and adjusting screws 111 is added. The end caps 110 are block-shaped structures, and the two end caps 110 are slidably connected to the fixing protrusions 10 on the inner side of the two fixing rods 30, respectively. The adjusting screw 111 is a long rod structure with a threaded part at the end. One end is fixedly connected to one of the end caps 110, and the threaded part is threadedly connected to the other end cap 110. By rotating the adjusting screw 111, the two end caps 110 can be driven to slide relative to each other along the fixing protrusions 10, thereby changing the compression amount of the elastic reset component 6, and thus adjusting the elastic force applied by the elastic reset component 6 to the angle limiting plate 50. This adapts to the operation requirements of the positioning body 52 for disengagement and locking in different scenarios. At the same time, the sliding connection and threaded connection can ensure the stability of the adjustment process and prevent the components from becoming loose or shifting.

[0040] Example 7: This embodiment provides a shoe sole mold, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0041] Furthermore, the elastic reset member 6 is a helical spring, with its two ends abutting against the elastic support plate 8 and the end cap 110, respectively.

[0042] By adopting the above technical solution, a helical spring is selected as the elastic reset component 6. The two ends of the helical spring abut against the elastic support plate 8 and the end cap 110, respectively. This abutment connection allows the elastic force of the helical spring to be directly and evenly transmitted to the elastic support plate 8, thereby acting on the angle limiting plate 50. This provides a continuous preload force for the engagement of the positioning body 52 and the locking hole 51. Simultaneously, the structural characteristics of the helical spring enable it to maintain stable elastic output during compression or rebound, adapting to the operation of the compression adjustment component 11 to adjust the compression amount. This ensures that the angle locking assembly 5 maintains the stability of the engagement or disengagement state of the positioning body 52 and the locking hole 51 under different force conditions. The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made according to the structure, shape, and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A shoe sole mold, comprising a lower mold (1) and an upper mold (2), characterized in that, Also includes: A fixed base (3) is fixed to the lower mold (1); The rotating base (4) is fixed to the upper mold (2) and hinged to the fixed base (3) via the rotating shaft (40). An angle locking assembly (5) is located between the fixed base (3) and the rotating base (4). It includes angle limiting plates (50) symmetrically arranged on both sides of the rotating base (4). Each angle limiting plate (50) has multiple locking holes (51) distributed circumferentially, and a positioning body (52) that is partially protruding on both sides of the rotating base (4) and can selectively engage any of the locking holes (51). The elastic reset member (6) is used to apply an elastic force to the angle limiting plate (50) to maintain the engagement or disengagement of the positioning body (52) and the locking hole (51).

2. The shoe sole mold according to claim 1, characterized in that, The fixed base (3) includes two fixed rods (30) spaced apart, and the rotating shaft (40) is located between the two fixed rods (30) and fixedly connected to the rotating base (4).

3. A shoe sole mold according to claim 1, characterized in that, The positioning body (52) is a spherical structure, and its surface is adapted to the inner wall of the locking hole (51).

4. A shoe sole mold according to claim 3, characterized in that, The rotating shaft (40) has ball seats (7) on both sides. The positioning body (52), which is configured as a spherical structure, is housed in the ball seats (7), and its protruding end faces the angle limiting plate (50).

5. A shoe sole mold according to claim 2, characterized in that, The outer side of the angle limiting plate (50) is provided with an elastic support plate (8) and an elastic reset member (6). The elastic support plate (8) and the edge of the angle limiting plate (50) are provided with a groove (9). The groove (9) is slidably engaged with the fixing protrusion (10) located inside the fixing rod (30).

6. A shoe sole mold according to claim 5, characterized in that, It also includes a compression adjuster (11), which comprises: The two end caps (110) are slidably connected to the fixing protrusions (10) of the two fixing rods (30); The adjusting screw (111) is fixed on one end cap (110), and its end is provided with a threaded part and threadedly connected to the other end cap (110) for adjusting the compression of the elastic reset member (6).

7. A shoe sole mold according to claim 6, characterized in that, The elastic reset component (6) is a helical spring, with its two ends abutting against the elastic support plate (8) and the end cap (110), respectively.

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