A convenient positioning mechanism of a leather punching machine
By designing a slide rail, a T-shaped slider, and a motor-driven pressure plate positioning mechanism on the leather punching machine, the problem of inaccurate positioning in the leather punching machine is solved, achieving automatic positioning and convenient disassembly, and improving punching accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN DACHUAN INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-26
AI Technical Summary
Existing leather punching machines lack an effective positioning mechanism, which causes the leather to easily shift during the punching process, requiring manual correction and affecting the accuracy of punching.
A convenient positioning mechanism was designed, including components such as a slide rail, a T-shaped slider, a U-shaped frame, a motor, a lead screw, and a pressure plate. The motor drives the lead screw to press the pressure plate down on the leather, and the elastic locking structure enables automatic positioning and convenient disassembly of the leather.
It effectively prevents the leather from shifting during the punching process, improves punching accuracy, and simplifies the installation and disassembly of the positioning mechanism.
Smart Images

Figure CN224411794U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of leather punching positioning technology, specifically relating to a convenient positioning mechanism for a leather punching machine. Background Technology
[0002] Leather punching machines are key pieces of equipment in the leather processing industry, specifically designed for efficiently creating various types of holes in leather materials. Their core consists of a punch, worktable, power system, and control system. The punch can be changed to different shapes and sizes to accommodate various punching requirements, including round, square, and irregular shapes. This equipment is suitable for various flexible materials such as natural leather, artificial leather, PU, and PVC, and is widely used in the production of leather goods, footwear, bags, and automotive interiors. Operation modes include semi-automatic and fully automatic. The fully automatic model, controlled by programming, can achieve continuous and precise punching, significantly improving production efficiency. Leather punching machines feature uniform punching and smooth edges, avoiding the errors and inefficiencies of manual punching. Furthermore, it can complete complex punching combinations according to design patterns, meeting the product's breathability requirements while creating unique decorative textures, adding artistry and practicality to leather products.
[0003] Currently, existing leather punching machines typically use hydraulic equipment to drive the punch downwards to punch holes in the leather below. However, traditional leather punching machines often lack a good positioning mechanism. Therefore, when the punch is pressing down to punch, it may cause the flat leather to shift. In this case, the operator needs to manually correct it. If it is not corrected in time, it will cause the punching position to deviate, thereby reducing the accuracy of leather punching. Utility Model Content
[0004] The purpose of this utility model is to provide a convenient positioning mechanism for a leather punching machine, which aims to solve the problem that existing leather punching machines typically use hydraulic equipment to drive the punch downwards to punch the leather below. However, traditional leather punching machines often lack a good positioning mechanism, so when the punch is pressed down to punch, it may cause the flat leather to shift. At this time, the operator needs to manually correct it. If it is not corrected in time, it will cause the punching position to deviate, thereby reducing the accuracy of leather punching.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a convenient positioning mechanism for a leather punching machine, comprising a machine body, a processing table connected to the surface of the machine body, two slide rails symmetrically distributed on the top of the processing table, and a T-shaped slider slidably connected to the inner side of the two slide rails;
[0006] The top of the T-shaped slider is fixedly connected to a U-shaped frame, the top of the U-shaped frame is equipped with a motor, the output end of the motor is connected to a lead screw, the outer wall of the lead screw is threaded with a threaded sleeve, the outer wall of the threaded sleeve is fixedly connected to a movable rod, the bottom of the movable rod is fixedly connected to a connecting rod, the bottom of the connecting rod is fixedly connected to a pressure plate, and the bottom of the pressure plate is bonded with an anti-slip layer.
[0007] As a preferred convenient positioning mechanism for a leather punching machine according to this utility model, a guide rod is fixedly connected to the inner side of the U-shaped frame, and one end of the movable rod is sleeved on the outer wall of the guide rod.
[0008] As a preferred convenient positioning mechanism for a leather punching machine according to this utility model, the end of the lead screw away from the motor is connected to the U-shaped frame through a bearing to form a rotatable connection structure.
[0009] As a preferred convenient positioning mechanism for a leather punching machine according to this utility model, a connecting seat is installed on the surface of the machine body, an electric telescopic rod is installed on the inner side of the connecting seat, the output end of the electric telescopic rod is connected to a lifting seat, and multiple punches are installed at the bottom of the lifting seat.
[0010] As a preferred convenient positioning mechanism for a leather punching machine according to this utility model, the outer wall of the slide rail is fixedly connected to a mounting base, the outer wall of the T-shaped slider is provided with a slot, one end of the mounting base is inserted through a pull rod, one end of the pull rod is fixedly connected to a movable block, one end of the movable block is fixedly connected to a locking pin, and a spring is sleeved on the outer wall of the pull rod.
[0011] As a preferred convenient positioning mechanism for a leather punching machine according to this utility model, one end of the locking pin is inserted through the inner side of the slide rail, and the through end of the locking pin is adapted to the size of the slot.
[0012] As a preferred convenient positioning mechanism for a leather punching machine according to this utility model, the T-shaped slider can form an elastic engagement structure with the slide rail through a mounting base, slot, pull rod, movable block, locking pin, and spring.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] By laying the leather flat on the top of the processing table, both ends of the leather will be located under a pressure plate. Then, by controlling two motors to drive the lead screw to rotate, the threaded sleeve connected to the outer wall can drive the movable rod to descend along the guide rod. At the same time, the pressure plate at the bottom of the connecting rod will continuously press down until the anti-slip layer contacts the leather and is pressed down and positioned. This can effectively prevent the leather from shifting during punching and further improve the accuracy of leather punching.
[0015] Pulling the movable block with the lever causes the locking pin to retract, at which point one end of the locking pin will disengage from the slot on the outer wall of the T-shaped slider. Then, the sliding connection structure between the T-shaped slider and the slide rail is used to pull the U-shaped frame outward, thereby making it easy to disassemble the positioning mechanism. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of the first main view structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the second main view structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the main cross-sectional structure of this utility model;
[0020] Figure 4 This is an enlarged structural diagram of the present invention (A).
[0021] Figure 5 This is an enlarged structural schematic diagram of the present invention, B.
[0022] In the diagram: 1. Machine body; 2. Processing table; 3. Connecting seat; 4. Electric telescopic rod; 5. Lifting seat; 6. Punch; 7. Slide rail; 8. T-shaped slider; 9. U-shaped frame; 10. Motor; 11. Lead screw; 12. Threaded sleeve; 13. Movable rod; 14. Connecting rod; 15. Pressure plate; 16. Anti-slip layer; 17. Guide rod; 18. Mounting seat; 19. Slot; 20. Pull rod; 21. Movable block; 22. Locking pin; 23. Spring. Detailed Implementation
[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-5 The present invention provides the following technical solution: a convenient positioning mechanism for a leather punching machine, comprising a machine body 1, a processing table 2 connected to the surface of the machine body 1, two slide rails 7 symmetrically distributed on the top of the processing table 2, and a T-shaped slider 8 slidably connected to the inner side of the two slide rails 7.
[0025] The top of the T-shaped slider 8 is fixedly connected to a U-shaped frame 9. A motor 10 is installed on the top of the U-shaped frame 9. The output end of the motor 10 is connected to a lead screw 11. A threaded sleeve 12 is threadedly connected to the outer wall of the lead screw 11. A movable rod 13 is fixedly connected to the outer wall of the threaded sleeve 12. A connecting rod 14 is fixedly connected to the bottom of the movable rod 13. A pressure plate 15 is fixedly connected to the bottom of the connecting rod 14. An anti-slip layer 16 is adhered to the bottom of the pressure plate 15.
[0026] Preferably, a guide rod 17 is fixedly connected to the inner side of the U-shaped frame 9, one end of the movable rod 13 is sleeved on the outer wall of the guide rod 17, and the end of the lead screw 11 away from the motor 10 forms a rotating connection structure with the U-shaped frame 9 through a bearing.
[0027] In practical use, the leather is laid flat on the top of the processing table 2. At this time, the two ends of the leather will be located under a pressure plate 15. Then, by controlling the two motors 10 to drive the lead screw 11 to rotate, the threaded sleeve 12 connected to the outer wall can drive the movable rod 13 to descend along the guide rod 17. At the same time, the pressure plate 15 at the bottom of the connecting rod 14 will continuously press down until the anti-slip layer 16 contacts the leather and is pressed down and positioned. This can effectively prevent the leather from shifting during punching and further improve the accuracy of leather punching.
[0028] Preferably: A connecting seat 3 is installed on the surface of the machine body 1, an electric telescopic rod 4 is installed on the inner side of the connecting seat 3, a lifting seat 5 is connected to the output end of the electric telescopic rod 4, and multiple punches 6 are installed at the bottom of the lifting seat 5;
[0029] It should be noted that the top of the processing table 2 has multiple punches, and the positions of the punches correspond one-to-one with the positions of the top punches 6.
[0030] In actual use, the electric telescopic rod 4 drives the lifting seat 5 to descend, at which time the multiple punches 6 at the bottom of the lifting seat 5 will punch holes in the leather at the bottom.
[0031] Preferably, the outer wall of the slide rail 7 is fixedly connected to a mounting base 18, the outer wall of the T-shaped slider 8 is provided with a slot 19, one end of the mounting base 18 is inserted through a pull rod 20, one end of the pull rod 20 is fixedly connected to a movable block 21, one end of the movable block 21 is fixedly connected to a locking pin 22, the outer wall of the pull rod 20 is sleeved with a spring 23, one end of the locking pin 22 is inserted through the inner side of the slide rail 7, and the through end of the locking pin 22 is adapted to the size of the slot 19. The T-shaped slider 8 can form an elastic engagement structure with the slide rail 7 through the mounting base 18, the slot 19, the pull rod 20, the movable block 21, the locking pin 22, and the spring 23.
[0032] In practical use, the movable block 21 is pulled by the pull rod 20 to retract the locking pin 22. At this time, one end of the locking pin 22 will disengage from the slot 19 on the outer wall of the T-shaped slider 8. Then, the U-shaped frame 9 is pulled outward by the sliding connection structure between the T-shaped slider 8 and the slide rail 7, so that the positioning mechanism can be easily disassembled.
[0033] Conversely, when assembling the positioning mechanism, the movable block 21 is pulled by the pull rod 20 to retract the locking pin 22, and then the T-shaped slider 8 slides in along the inner side of the slide rail 7 until it slides into the deepest part. Then the pull rod 20 is released so that the locking pin 22 can pop out under the action of the spring 23 and insert into the slot 19, thereby realizing the convenient assembly of the positioning mechanism.
[0034] Working principle: First, the pull rod 20 pulls the movable block 21, causing the locking pin 22 to retract. Then, the T-shaped slider 8 slides along the inner side of the slide rail 7 until it reaches its deepest point. Then, the pull rod 20 is released, allowing the locking pin 22 to pop out under the action of the spring 23 and insert into the slot 19, thus achieving convenient assembly of the positioning mechanism. Then, the leather is laid flat on the top of the processing table 2. At this time, both ends of the leather will be located under a pressure plate 15. Then, by controlling the two motors 10, the lead screw 11 is rotated, causing the threaded sleeve 12 connected to its outer wall to drive the movable rod 13 to descend along the guide rod 17. At the same time, the pressure plate 15 at the bottom of the connecting rod 14... The pressure will continue until the anti-slip layer 16 contacts the leather and is pressed down to position it, thereby effectively preventing the leather from shifting during punching and further improving the accuracy of leather punching. At this time, the electric telescopic rod 4 drives the lifting seat 5 to descend. At this time, the multiple punches 6 at the bottom of the lifting seat 5 will punch the leather at the bottom. Finally, during disassembly, the pull rod 20 pulls the movable block 21 to retract the locking pin 22. At this time, one end of the locking pin 22 will disengage from the slot 19 on the outer wall of the T-shaped slider 8. Then, the sliding connection structure between the T-shaped slider 8 and the slide rail 7 is used to pull the U-shaped frame 9 outward, thereby making it easy to disassemble the positioning mechanism.
[0035] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A convenient positioning mechanism for a leather punching machine, comprising a machine body (1), characterized in that: The surface of the machine body (1) is connected to a processing table (2), and two slide rails (7) are symmetrically distributed on the top of the processing table (2). T-shaped sliders (8) are slidably connected to the inner sides of the two slide rails (7). The top of the T-shaped slider (8) is fixedly connected to a U-shaped frame (9), and a motor (10) is installed on the top of the U-shaped frame (9). The output end of the motor (10) is connected to a lead screw (11). A threaded sleeve (12) is threadedly connected to the outer wall of the lead screw (11). A movable rod (13) is fixedly connected to the outer wall of the threaded sleeve (12). A connecting rod (14) is fixedly connected to the bottom of the movable rod (13). A pressure plate (15) is fixedly connected to the bottom of the connecting rod (14). An anti-slip layer (16) is adhered to the bottom of the pressure plate (15).
2. The convenient positioning mechanism for a leather punching machine according to claim 1, characterized in that: The inner side of the U-shaped frame (9) is fixedly connected to a guide rod (17), and one end of the movable rod (13) is sleeved on the outer wall of the guide rod (17).
3. The convenient positioning mechanism for a leather punching machine according to claim 1, characterized in that: The end of the lead screw (11) away from the motor (10) is connected to the U-shaped frame (9) by a bearing to form a rotating connection structure.
4. The convenient positioning mechanism for a leather punching machine according to claim 1, characterized in that: A connecting seat (3) is installed on the surface of the body (1), an electric telescopic rod (4) is installed on the inner side of the connecting seat (3), the output end of the electric telescopic rod (4) is connected to a lifting seat (5), and multiple punches (6) are installed at the bottom of the lifting seat (5).
5. The convenient positioning mechanism for a leather punching machine according to claim 1, characterized in that: The outer wall of the slide rail (7) is fixedly connected to a mounting base (18), the outer wall of the T-shaped slider (8) is provided with a slot (19), one end of the mounting base (18) is inserted through a pull rod (20), one end of the pull rod (20) is fixedly connected to a movable block (21), one end of the movable block (21) is fixedly connected to a locking pin (22), and the outer wall of the pull rod (20) is sleeved with a spring (23).
6. The convenient positioning mechanism for a leather punching machine according to claim 5, characterized in that: One end of the locking pin (22) is inserted through the inner side of the slide rail (7), and the through end of the locking pin (22) is adapted to the size of the slot (19).
7. A convenient positioning mechanism for a leather punching machine according to claim 5, characterized in that: The T-shaped slider (8) can form an elastic engagement structure with the slide rail (7) through the mounting base (18), the slot (19), the pull rod (20), the movable block (21), the locking pin (22), and the spring (23).