A mold-opening tool for a flat vulcanizing mold used in shoemaking
By designing adjustable-angle elbow components and anti-slip rubber layer mold opening tools, the problem of difficult mold opening for flat vulcanizing molds was solved, reducing labor intensity and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIHUA 3514 LEATHER & FOOTWARE
- Filing Date
- 2025-05-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing flat vulcanizing molds for shoemaking are difficult to open, especially when producing rubber soles with high heights, which requires considerable force, resulting in high labor intensity and low production efficiency.
A mold-opening tool was designed, which includes a hand lever mechanism, a hinged seat, and an elbow component. The elbow component is angle-adjustable and, combined with an anti-slip rubber layer and a suspension component, can adapt to the usage habits of different operators, thereby enhancing leverage efficiency and operational stability.
By adjusting the angle of the elbow components and implementing an anti-slip design, the operator's labor intensity is reduced, the mold-making efficiency is improved, and the safety and practicality of operation are enhanced.
Smart Images

Figure CN224510202U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a mold-opening tool, specifically a mold-opening tool for a flat vulcanizing mold used in shoemaking. Background Technology
[0002] In the production of rubber soles for shoes, the vulcanization process is a crucial step. This process typically includes the following steps: 1. Prepare the rubber compound, clean the flat vulcanizing mold, and spray a release agent; 2. Place the rubber compound into the mold cavity of the flat vulcanizing mold, start the mold, close the mold (closing the upper and lower molds), apply pressure to force the rubber compound to fill the mold cavity and expel air; 3. Maintain a certain temperature and pressure to allow the rubber compound to undergo a vulcanization reaction; 4. After the vulcanization reaction is complete, release the pressure, open the mold (separating the upper and lower molds), remove the rubber sole, and allow it to cool and set.
[0003] During the vulcanization process, the upper and lower molds of a flat vulcanizing mold need to be separated. Due to the thermal expansion of the mold and the adhesion of rubber during vulcanization, the mold opening operation is very difficult, especially when producing rubber soles with high sidewalls (the raised edges along the circumference of the sole). The large interlocking area between the upper and lower molds in the flat vulcanizing mold makes the opening operation even more difficult. Therefore, mold opening tools are usually required. Currently used tools typically include a hand lever and a flat tip fixed to the end of the hand lever. This flat tip is a straight, pointed tip in a fixed position. During the mold opening process, when the operator inserts the flat tip into the pry hole and holds the hand lever to pry the flat vulcanizing mold, a larger angle of force is required, resulting in a shortened lever arm and low lever efficiency. Greater force is needed to separate the upper and lower molds. In actual production, there are even cases where the mold cannot be opened even with great force. This leads to high labor intensity for production workers, low mold opening efficiency, and seriously affects production efficiency, increasing the workload of production workers. Summary of the Invention
[0004] To address the aforementioned shortcomings in the existing technology, this utility model aims to provide a mold-opening tool for a flat vulcanizing mold used in shoemaking, thereby improving production efficiency and reducing the labor intensity of production workers.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a mold opening tool for a flat vulcanizing mold for shoe making, comprising a hand-held rod mechanism, a bent member hinged to one end of the hand-held rod mechanism via a positionable hinge seat, and a suspension member detachably connected to the end of the hand-held rod mechanism away from the bent member.
[0006] As a limitation of this utility model, the handheld lever mechanism includes a handheld lever mechanism body and an elbow connecting member with a first end face gear member fixed to one end of the handheld lever mechanism body.
[0007] As a further limitation of this utility model, the hinge seat includes a U-shaped component with a second end face gear component, a bolt, and a locking nut. The elbow connecting component is inserted into the opening of the U-shaped component and connected together by the bolt thread. A locking nut is threaded onto the bolt at a position on the outside of the U-shaped component. The first end face gear component and the second end face gear component are adapted to each other so that when the locking nut is tightened, the first end face gear component and the second end face gear component are inserted together, thereby realizing the positioning of the elbow component.
[0008] As a further limitation of this utility model, the elbow component is provided with an anti-slip rubber layer.
[0009] As a further limitation of this utility model, the main body of the handheld lever mechanism adopts a telescopic lever with positioning function.
[0010] As a further limitation of this utility model, it also includes a storage box, which has a storage slot for the hand-held lever mechanism, a storage slot for the hinge seat and the elbow component, and a storage slot for the suspension component.
[0011] By adopting the above-mentioned technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows:
[0012] (1) This utility model adopts a structure combining a hand-held lever mechanism, a hinge seat, and an elbow component. When using this utility model to open a mold, the angle of the elbow component on the hand-held lever mechanism can be adjusted. Different production workers can adjust it to the most suitable position for their own use according to their own usage habits and actual conditions, so that the operation is more comfortable and labor-saving. In addition, the elbow component can form a better lever angle, with a larger force arm and higher leverage efficiency. Compared with existing mold opening tools, the mold opening operation can be completed with less force when using this utility model, which can effectively reduce the labor intensity of production workers and improve production efficiency.
[0013] (2) In this utility model, the elbow connecting component and the hinge seat cooperate with each other to realize the adjustment of the elbow component angle. The elbow connecting component and the hinge seat have simple structure and low manufacturing cost. When it is necessary to adjust the elbow component angle, just loosen the locking nut, rotate the elbow component to the required angle, and then tighten the locking nut. The operation is very convenient and the practicality is strong.
[0014] (3) The elbow component of this utility model is provided with an anti-slip rubber layer, which can increase the friction between the elbow component and the prying hole in the flat vulcanizing mold during use, and can prevent the elbow component from slipping or slipping off the prying hole during the mold opening operation, thereby enhancing the stability of operation and the safety during use.
[0015] (4) This utility model is provided with a hanging component. When this utility model is not needed for the time being, it can be hung on a hook on the wall or on a hook on the workbench through the hanging component, which can improve the practicality of this utility model.
[0016] (5) The handheld lever mechanism body of this utility model adopts a telescopic lever with positioning function. When in use, the length of the handheld lever mechanism body can be adjusted according to the individual usage needs of the production worker, which can make the operation more comfortable and labor-saving. In addition, the handheld lever mechanism, the hinge seat and the elbow component, and the suspension component can all be disassembled. When this utility model is not used for a long time or needs to be carried over a long distance, the hinge seat and the elbow component and the suspension component can be disassembled and placed in the storage box. The handheld lever mechanism body can be retracted to the shortest length and placed in the storage box, which can facilitate the storage and carrying of this utility model.
[0017] In summary, this utility model features a simple structure, low manufacturing cost, convenient and flexible use, and strong practicality. During use, different production workers can adjust the position of the elbow component to the most suitable position according to their own usage habits and actual conditions, making operation more comfortable and labor-saving. Furthermore, the elbow component can form a better lever angle, allowing for mold opening operations with less force, effectively reducing the labor intensity of production workers and improving production efficiency. This utility model is suitable for use in opening flat vulcanizing molds for shoe manufacturing. Attached Figure Description
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0019] Figure 1 This is a perspective view of the structure other than the storage box in the embodiments of this utility model;
[0020] Figure 2 This is a perspective view of the structure other than the storage box in the embodiment of this utility model;
[0021] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle;
[0022] Figure 4 This is a schematic diagram showing the connection relationship between the elbow connecting component body, the first end face gear component, and the hand-held lever mechanism body in an embodiment of this utility model.
[0023] Figure 5 This is a schematic diagram showing the connection relationship between the U-shaped component body, the second end face gear component, and the elbow component in an embodiment of this utility model;
[0024] In the diagram: 1. The main body of the handheld lever mechanism;
[0025] 2. Elbow connecting component; 21. Elbow connecting component body; 22. First end face gear component;
[0026] 3. Hinge seat; 31. U-shaped component body; 32. Second end face gear component; 33. Bolt; 34. Locking nut;
[0027] 4. Elbow components; 5. Suspension components. Detailed Implementation
[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.
[0029] Example: A mold-opening tool for a flat vulcanizing mold used in shoemaking.
[0030] like Figure 1 , Figure 2 As shown, this embodiment includes a handheld lever mechanism, an elbow component 4 hinged to one end of the handheld lever mechanism via a positionable hinge seat 3, and a suspension component 5 detachably connected to the end of the handheld lever mechanism away from the elbow component 4, wherein the elbow component 4 is provided with an anti-slip rubber layer.
[0031] The handheld lever mechanism includes a handheld lever mechanism body 1 and an elbow connecting member 2 with a first end face gear member 22 fixed to one end of the handheld lever mechanism body 1. Specifically, in this embodiment, the elbow connecting member 2 includes an elbow connecting member body 21 and a first end face gear member 22 fixed to the elbow connecting member body 21. The handheld lever mechanism body 1 adopts a telescopic rod with a positioning function. This telescopic rod is an existing structure and has a positioning member for opening and closing its telescopic function.
[0032] like Figures 3 to 5 As shown, the hinge seat 3 includes a U-shaped component with a second end face gear component 32, a bolt 33, and a locking nut 34. The U-shaped component is fixed to the end of the elbow component 4. Specifically, the U-shaped component includes a U-shaped component body 31 and a second end face gear component 32 fixed on the U-shaped component body 31. The elbow connecting component 2 is inserted into the opening of the U-shaped component and threaded together by the bolt 33. A locking nut 34 is threaded onto the bolt 33 at a position on the outside of the U-shaped component. The first end face gear component 22 is adapted to the second end face gear component 32 so that when the locking nut 34 is tightened, the first end face gear component 22 and the second end face gear component 32 are inserted together, thereby achieving the positioning of the elbow component 4.
[0033] The suspension component 5 includes a threaded rod and a connecting plate fixed at the end of the threaded rod. The connecting plate has a suspension hole, which is a waist-shaped hole. The threaded rod is threadedly connected to the end of the hand-held lever mechanism away from the elbow component 4.
[0034] To facilitate storage and carrying in this embodiment, this embodiment also includes a storage box (not shown in the accompanying drawings). The storage box is an existing structure, including a box body, a box lid hinged to the box body and locked to the box body, and a handle fixed to the box lid. The storage box has a storage slot for a hand lever mechanism, a storage slot for a hinge seat and an elbow component, and a storage slot for a suspension component. The storage slot for the hand lever mechanism is used to place the hand lever mechanism, the storage slot for the hinge seat and elbow component is used to place the hinge seat and elbow component, and the storage slot for the suspension component is used to place the suspension component.
[0035] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A mold opening tool for a flat vulcanization mold for shoe manufacturing, characterized by: It includes a hand-held lever mechanism, an elbow component hinged to one end of the hand-held lever mechanism via a positionable hinge seat, and a suspension component detachably connected to the end of the hand-held lever mechanism away from the elbow component.
2. The mold opening tool for a flat curing mold for shoemaking according to claim 1, characterized in that: The handheld lever mechanism includes a handheld lever mechanism body and an elbow connecting member with a first end face gear component fixed to one end of the handheld lever mechanism body.
3. The mold opening tool for a flat curing mold for shoemaking according to claim 2, characterized in that: The hinge seat includes a U-shaped component with a second end face gear component, a bolt, and a locking nut. The elbow connecting component is inserted into the opening of the U-shaped component and connected together by the bolt thread. A locking nut is threaded onto the bolt at a position on the outside of the U-shaped component. The first end face gear component and the second end face gear component are adapted to each other so that when the locking nut is tightened, the first end face gear component and the second end face gear component are inserted together, thereby achieving the positioning of the elbow component.
4. The mold opening tool for a flat curing mold for shoemaking according to claim 3, characterized in that: The elbow component is provided with an anti-slip rubber layer.
5. The mold opening tool for a flat curing mold for shoe manufacturing according to any one of claims 2 to 4, characterized in that: The main body of the handheld lever mechanism adopts a telescopic lever with positioning function.
6. The mold opening tool for a flat curing mold for shoemaking according to claim 5, characterized in that: It also includes a storage box, which has a storage slot for the hand lever mechanism, a storage slot for the hinge seat and elbow components, and a storage slot for the suspension components.