A heat-fusion device for a casual shoe toe heat-fusion device
By designing a hot-melt device for casual shoe toe heat fusion, and using a motor-driven spool and cable to automatically control the movement of the upper mold, the problem of cumbersome operation in the existing technology is solved, realizing convenient mold bonding and shoe last protection, and improving practicality and lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU JIUHANG SHOES CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-26
AI Technical Summary
Existing casual shoe toe heat fusion machines require frequent pulling out of the support plate during batch processing, which is cumbersome to operate, and the upper and lower molds need to be manually pressed together, making them less practical.
Design a hot-melt device that includes a casual shoe toe pressing hot-melt structure and a shoe last support structure. The device uses a motor to drive a spool and cable to move the upper mold, and combines spring reset to automatically fit the mold. The shoe last is protected by a wooden board for heat insulation, reducing manual operation.
The automated mold bonding process reduces manual operation steps, improves ease of operation, and extends the lifespan of the shoe last.
Smart Images

Figure CN224268463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of casual shoe processing technology, specifically a hot-melting device for a casual shoe toe heat melter. Background Technology
[0002] Casual shoes are a type of footwear characterized by a simple and comfortable design concept to meet people's daily wear needs. In the manufacturing process of leather shoes, the toe needs to be shaped. When shaping the toe, the leather of the toe needs to be softened using a heat melter before shaping. The heat melter is equipped with a heat melting device to soften the leather.
[0003] For example, the heat-insulating support plate of the product with announcement number "CN208523904U" can be directly pulled out, along with the shoe last; the heat-insulating plate has an arc section, which can reduce wear on the shoe last; the heat-insulating paper prevents the shoe leather from sticking to the upper and lower molds; it is more convenient to use, less likely to damage the shoe last and shoe leather, and more cost-effective. However, in the above, the support plate needs to be pulled out each time the shoe toe is heat-fused. Since batch processing is required, the operation process is relatively cumbersome. When the staff operates the upper and lower molds to attach them to the shoe toe, the staff needs to manually place the upper mold on the lower mold and apply force to press it down so that the upper and lower molds are attached to the shoe toe for heat fusion, which has low practicality. Utility Model Content
[0004] The purpose of this invention is to solve the problems of the following: each time the shoe toe is heat-fused, the support plate needs to be pulled out, which is cumbersome due to the need for batch processing; and when the upper and lower molds are attached to the shoe toe, the operator needs to manually place the upper mold on the lower mold and apply force to press it down in order to make the upper and lower molds fit the shoe toe for heat fusion, which is not very practical. Therefore, a heat fusion device for casual shoe toe heat fusion is proposed.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] Design a hot-melting device for a casual shoe toe heat fusion machine, including a base plate, a lower mold, and an upper mold. The upper end of the outer wall of the base plate is fixedly connected to the lower mold via a bracket. The middle of the upper end of the outer wall of the base plate is provided with a casual shoe toe pressing and hot-melting structure. The middle of the lower end of the outer wall of the lower mold is provided with a shoe last support structure. Heating plates are fixedly connected to the inner walls of the lower mold and the upper mold. Outer shells are fixedly connected to both sides of the upper end of the outer wall of the base plate.
[0007] Preferably, the casual shoe toe pressing and hot-melt structure includes a motor, with a spool fixedly connected to the output shafts at both ends of the motor. A cable is wound around the outer wall of the spool, and a vertical rod is fixedly connected to the end of the cable. A spring is provided on the outer wall of the vertical rod, and the two ends of the spring are fixedly connected to the upper mold and the lower mold, respectively.
[0008] Preferably, the outer walls of the two motors are fixedly connected to the base plate by a bracket, and the spool rotation shaft is rotatably connected to the housing by a bearing.
[0009] Preferably, the outer wall of the vertical rod is slidably connected to the lower mold, and the upper end of the outer wall of the vertical rod is fixedly connected to the upper mold.
[0010] Preferably, the shoe last support structure includes a wooden board, the upper end of the outer wall of the wooden board is fixedly connected to the lower mold, and multiple frames are fixedly connected to the lower end of the outer wall of the wooden board. The inner wall of the frames is rotatably connected to multiple rollers through bearings.
[0011] The present invention proposes a heat-melting device for a casual shoe toe heat-melting machine, which has the following advantages: Through the casual shoe toe pressing heat-melting structure, two motors start simultaneously, driving the spool to rotate within the housing via bearings. This causes the spool to wind up the cable. During this process, the cable pulls the vertical rod to slide downward within the lower mold, which in turn drives the upper mold to move downward. Simultaneously, the spring is compressed, controlling the motor to reverse and unwind the cable. The spring rebounds, pushing the upper mold back to its original position. The motor drives the spool to rotate and wind up the cable, allowing the mold to adhere to the shoe toe on the lower mold. This avoids the need for manual pressing of the mold to heat-melt the casual shoe toe in existing technologies, thus effectively improving practicality.
[0012] Through the shoe last support structure, the shoe last comes into contact with multiple rollers. These rollers rotate within the frame via bearings as the shoe last rubs against the surface, reducing friction on the shoe last. The wooden board insulates the mold from heat, preventing the shoe last from being burned and thus extending its lifespan. In addition, compared to existing technologies, this reduces the steps required to move the support plate, making the operation more convenient. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 for Figure 1 A front sectional view;
[0015] Figure 3 for Figure 2 Enlarged view of A in the middle;
[0016] Figure 4 for Figure 2 Enlarged view of B in the middle;
[0017] Figure 5 for Figure 2 Enlarged view of C;
[0018] Figure 6 for Figure 1 A magnified view of D.
[0019] In the diagram: 1. Casual shoe toe pressing and hot-melt structure, 101. Motor, 102. Spool, 103. Cable, 104. Vertical rod, 105. Spring, 2. Shoe last support structure, 201. Wooden board, 202. Frame, 203. Roller, 3. Sole plate, 4. Outer shell, 5. Lower mold, 6. Upper mold, 7. Heating plate. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings:
[0021] See attached document Figure 1-6 In this embodiment, a hot-melting device for a casual shoe toe hot-melting device includes a base plate 3, a lower mold 5, and an upper mold 6. The upper end of the outer wall of the base plate 3 is fixedly connected to the lower mold 5 through a bracket. The middle part of the upper end of the outer wall of the base plate 3 is provided with a casual shoe toe pressing hot-melting structure 1, and the middle part of the lower end of the outer wall of the lower mold 5 is provided with a shoe last support structure 2.
[0022] Heating plates 7 are fixedly connected to the inner walls of the lower mold 5 and the upper mold 6. The outer walls of the base plate 3 are fixedly connected to the upper two sides of the outer wall. The outer walls of the two motors 101 are fixedly connected to the base plate 3 through brackets. The rotating shaft of the bobbin 102 is rotatably connected to the outer shell 4 through bearings. The bobbin 102 can rotate inside the outer shell 4 through bearings. The outer wall of the vertical rod 104 is slidably connected to the lower mold 5. The vertical rod 104 can slide inside the lower mold 5. The upper end of the outer wall of the vertical rod 104 is fixedly connected to the upper mold 6.
[0023] See attached document Figure 1-3 5: The casual shoe toe pressing and hot-melt structure 1 includes a motor 101, which is a servo motor. The output shafts at both ends of the motor 101 are fixedly connected to a bobbin 102. The motor 101 can drive the bobbin 102 to rotate. A cable 103 is wound around the outer wall of the bobbin 102. A vertical rod 104 is fixedly connected to the end of the cable 103. A spring 105 is provided on the outer wall of the vertical rod 104. The spring force coefficient of the spring 105 is determined according to actual needs to meet the working requirements. The two ends of the spring 105 are fixedly connected to the upper mold 6 and the lower mold 5 respectively.
[0024] See attached document Figure 1-24-6: The shoe last support structure 2 includes a wooden board 201. The wooden board 201 has heat insulation properties to prevent the lower mold 5 from damaging the shoe last. The upper end of the outer wall of the wooden board 201 is fixedly connected to the lower mold 5. Multiple frames 202 are fixedly connected to the lower end of the outer wall of the wooden board 201. The inner wall of the frame 202 is rotatably connected to multiple rollers 203 through bearings. The rollers 203 can rotate within the frame 202 through the bearings. The rollers 203 can reduce the friction with the shoe last, thereby improving the service life of the shoe last.
[0025] Working principle:
[0026] Hot-melt process for casual shoe toes:
[0027] When it is necessary to heat-melt the toe of the casual shoe, the toe area is wrapped with heat insulation paper. The heat insulation paper can prevent the toe from sticking to the upper mold 6 and the lower mold 5. Then, the shoe last is inserted into the casual shoe for support. The casual shoe toe is further flipped up and inserted between the upper mold 6 and the lower mold 5. At this time, the shoe last will contact multiple rollers 203. The multiple rollers 203 will rotate in the frame 202 through bearings as the shoe last rubs. The multiple rollers 203 can reduce the friction on the surface of the shoe last, thereby improving the service life.
[0028] Then, the power cords of the two motors 101 are simultaneously connected to the control board, and the external power supply of the two motors 101 is also connected. The two motors 101 start simultaneously, driving the bobbin 102 to rotate in the housing 4 through the bearing. The bobbin 102 then winds up the cable 103. During this process, the cable 103 pulls the vertical rod 104 to slide downward in the lower mold 5. The vertical rod 104 then drives the upper mold 6 to move downward, and at the same time, the spring 105 is compressed. When the upper mold 6 is in contact with the shoe toe that is attached to the lower mold 5, the motor 101 stops rotating. The motor 101 is a servo motor with self-locking performance, which enables the upper mold 6 to be positioned.
[0029] Then, the heating plates 7 inside the upper mold 6 and lower mold 5 are connected. The heating plates 7 are activated to supply electricity to the internal heating wires. The heating wires generate heat and transfer it to the heating plates 7 to make them heat up. In turn, the heating plates 7 heat the upper mold 6 and lower mold 5, so that the shoe toe is heated and melted. During this process, the wooden board 201 can isolate the heat of the lower mold 5 to prevent the shoe last from being burned. After the casual shoe toe is melted, the control motor 101 reverses to unfold the cable 103. At the same time, the spring 105 pushes the upper mold 6 back to reset, so that the casual shoe can be taken out. Then, the same working method is used to melt the subsequent casual shoe toes.
[0030] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.
Claims
1. A heat-melting device for a casual shoe toe heat-melting machine, comprising a base plate (3), a lower mold (5), and an upper mold (6), wherein the upper end of the outer wall of the base plate (3) is fixedly connected to the lower mold (5) via a bracket, characterized in that: The upper middle part of the outer wall of the base plate (3) is provided with a casual shoe toe pressing and hot melting structure (1), the lower middle part of the outer wall of the lower mold (5) is provided with a shoe last support structure (2), the inner walls of the lower mold (5) and the upper mold (6) are fixedly connected with heating plates (7), and the upper sides of the outer wall of the base plate (3) are fixedly connected with outer shells (4).
2. The heat-fusion device for a casual shoe toe heat-fusion device according to claim 1, characterized in that: The casual shoe toe pressing and hot-melt structure (1) includes a motor (101), with a spool (102) fixedly connected to the output shafts at both ends of the motor (101). A cable (103) is wound around the outer wall of the spool (102), and a vertical rod (104) is fixedly connected to the end of the cable (103). A spring (105) is provided on the outer wall of the vertical rod (104), and the two ends of the spring (105) are fixedly connected to the upper mold (6) and the lower mold (5) respectively.
3. The heat-fusion device for a casual shoe toe heat-fusion device according to claim 2, characterized in that: The outer walls of the two motors (101) are fixedly connected to the base plate (3) by brackets, and the rotating shaft of the bobbin (102) is rotatably connected to the outer shell (4) by bearings.
4. The heat-fusion device for a casual shoe toe heat-fusion device according to claim 2, characterized in that: The outer wall of the vertical rod (104) is slidably connected to the lower mold (5), and the upper end of the outer wall of the vertical rod (104) is fixedly connected to the upper mold (6).
5. The heat-fusion device for a casual shoe toe heat-fusion device according to claim 1, characterized in that: The shoe last support structure (2) includes a wooden board (201). The upper end of the outer wall of the wooden board (201) is fixedly connected to the lower mold (5). Multiple frames (202) are fixedly connected to the lower end of the outer wall of the wooden board (201). The inner wall of the frame (202) is rotatably connected to multiple rollers (203) through bearings.