Perforating device and method for shoemaking

Abstract

The invention relates to the technical field of shoe processing, in particular to a punching device and method for shoemaking, comprising a workbench, a lifting assembly, supporting legs, a punching assembly and an adjusting assembly, the supporting legs are arranged at four corners below the workbench, and the lifting assembly comprises a back plate, a top plate, a first lifter and a lifting plate; the back plate is arranged on the back side of the upper portion of the workbench, the top plate is arranged on the front face of the upper portion of the back plate, and the first lifter penetrates through the top plate and is connected with the lifting plate. The adjusting assembly (composed of a guide frame, a motor, a screw rod, a sliding block, a supporting plate, a cross beam, a guide rod, an upper limiting plate, a lower limiting plate and the like) can achieve flexible adjustment of the position of the punching assembly in the plane, and the requirement for punching of different positions of the vamp is met. The punching assembly achieves actual punching operation on the vamps and has certain flexibility and multifunctionality. And through the pre-positioning assembly, the materials can be conveniently pressed down and positioned, and the punching accuracy is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of shoe processing, in particular to a punching device and method for shoe making. Background Art

[0002] During the production process of the upper, holes need to be punched to facilitate the insertion and binding of shoelaces; Simple tools such as awls and punches are usually used when punching holes in the upper of a shoe. For example, when using an awl to punch holes, first place the upper material on a suitable pad, then align the awl with the location where the hole is to be punched, and manually apply pressure to make the awl penetrate the upper to form a hole. Punches are generally used to punch holes of regular shapes. Place the punch on the upper, hit the top of the punch with a hammer, and use the shape of the punch to punch the corresponding holes on the upper. The above operation requires a relatively high level of operating skills of the staff, is time-consuming and labor-intensive, and is prone to inaccurate punching positions. Summary of the invention

[0003] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a punching device and method for shoemaking.

[0004] (II) Technical solution To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a punching device for shoemaking, comprising a workbench, a lifting assembly, legs, a punching assembly and an adjustment assembly, wherein the legs are arranged at the four corners below the workbench, the lifting assembly comprises a back plate, a top plate, a first lifter and a lifting plate, the back plate is arranged at the back side above the workbench, the top plate is arranged at the front side above the back plate, the first lifter penetrates the top plate and is connected to the lifting plate; The adjusting assembly comprises a guide frame, a motor, a screw, a slider, a support plate, a cross beam, a guide rod, an upper limit plate and a lower limit plate, the guide frame is an isosceles trapezoid, and the guide frame is symmetrically provided with a first guide hole on the left and right sides, the lifting plate is connected to the guide frame on the left and right sides, the support plates are symmetrically provided on the front and rear sides of the guide frame, the motor is provided on the support plate located at the front side, the screw is also rotatably provided at the center of the two groups of support plates, the output end of the motor passes through the support plate and is connected to the screw, the slider is threadedly connected to the screw, the left and right sides of the slider are symmetrically provided with a cross beam slidably connected to the top wall and the bottom wall of the guide frame, the cross beam center is provided with a second guide hole, the guide rod passes through the first guide hole and the second guide hole, the upper limit plate and the lower limit plate are respectively provided on the upper and lower sides of the guide rod, the upper limit plate is slidably connected to the top wall of the guide frame, the lower limit plate is slidably connected to the cross beam, and the two groups of the first guide holes are arranged obliquely; The punching assembly comprises a second lifter, a connecting piece and a punching rod, wherein the upper and lower ends of the second lifter are respectively connected to the lower limit plate and the connecting piece, and the punching rod is arranged below the connecting piece; A material pre-positioning component is also provided below the support plate; The workbench is also provided with a tool retracting frame.

[0005] Preferably, the connecting member includes a mounting seat, a stud, a laser emitter and a connecting seat, the mounting seat is arranged below the second lifter, the stud is also arranged below the mounting seat, a mounting groove is arranged at the center below the stud, the laser emitter is embedded in the mounting groove, a screw groove connected to the stud is arranged on the connecting seat, and a light-transmitting hole is arranged at the center of the connecting seat and the punching rod.

[0006] In order to facilitate material return, the present invention has been improved in that a material return assembly is further provided under the punching rod, the material return assembly includes a first spring and a material return ring, a material return groove is further provided under the punching rod, and the upper and lower sides of the first spring are respectively connected to the material return groove and the material return ring.

[0007] In order to facilitate the stable lifting of the lifting plate, the present invention is improved in that an auxiliary rod penetrating the top plate is further provided on the lifting plate.

[0008] In order to facilitate the pre-positioning of materials, the present invention has been improved in that the pre-positioning assembly includes a mounting plate, an elastic member and a pressure plate, a mounting plate is arranged under each group of support plates, several groups of elastic members are arranged under the mounting plate, and a pressure plate is also arranged under the elastic member.

[0009] Preferably, the elastic member includes a second spring and a telescopic rod, the second spring is sleeved on the telescopic rod, and the second spring and the telescopic rod are respectively connected to the mounting plate and the pressing plate at their upper and lower ends.

[0010] In order to facilitate the unloading of materials, the present invention has been improved in that a unloading hole is provided on the workbench, a bearing groove is further provided above the unloading hole, the tool retraction frame is arranged in the bearing groove, and the pressure plate located on the back side is adapted to the tool retraction frame.

[0011] In order to facilitate the limiting of materials, the present invention is improved in that a guide seat is further arranged at the center of the workbench.

[0012] The present invention further provides a method for using a punching device for shoemaking, comprising the following steps: Step 1: Place the material on the workbench, with its inner edge fitting against the outer edge of the guide seat; Step 2: Select a connection base with a punch rod of appropriate specifications and connect it to the stud thread; Step 3, start the first lifter, the first lifter drives the lifting plate to descend, and then the pressing plate presses the material down for pre-positioning; Step 4: The material is flattened by manual assistance, and then the first lifter is further started to continue to extend, and the pressing plate presses the material downward stably; Step 5: The motor drives the screw to move intermittently. As the slider moves to the specified position, the second lifter drives the mounting seat to press down, and the punching rod punches holes in the material. Step 6: Reset the equipment, remove the material, and wait for the next material loading and processing.

[0013] (III) Beneficial effects Compared with the prior art, the present invention provides a punching device and method for shoemaking, which has the following beneficial effects: The punching device and method for shoe manufacturing, the adjusting component (composed of a guide frame, a motor, a screw, a slider, a support plate, a crossbeam, a guide rod, an upper limit plate and a lower limit plate, etc.) can realize the flexible adjustment of the position of the punching component in the plane to meet the requirements of punching holes at different positions of the shoe surface. The guide frame is in an isosceles trapezoidal shape and has first guide holes arranged obliquely symmetrically on its left and right sides, so that when the slider moves under the drive of the screw, it can drive the punching component to change its position according to a specific trajectory and direction. The output end of the motor passes through the support plate and is connected to the screw. When the motor starts to drive the screw to rotate, based on the principle of thread transmission, the slider threadedly connected to the screw will move linearly along the screw. The beams on the left and right sides of the slider are slidably connected to the bottom wall of the guide frame through the top wall, and the second guide hole in the center of the beam cooperates with the guide rod that passes through the first guide hole and the second guide hole. In addition, the upper limit plate is slidably connected to the top wall of the guide frame, and the lower limit plate is slidably connected to the beam, which together play a precise guiding and limiting role in the movement of the slider and the punching assembly, ensuring that the movement direction is accurate and stable without offset or shaking. The punching assembly (consisting of a second lifter, a connector and a punching rod) realizes the actual punching operation of the upper and has certain flexibility and versatility. The upper and lower ends of the second lifter are respectively connected to the lower limit plate and the connector. By controlling the extension and retraction of the second lifter, the connector and the punching rod below can be driven to move up and down in the vertical direction. After the adjustment assembly moves the punching rod to the target punching position, the second lifter is started to press down the punching rod, so that the punching rod can penetrate the upper material to punch holes. The operation is simple and convenient. The mounting seat is easy to connect with the second lifter and the stud. The laser transmitter embedded in the center below the stud cooperates with the light-transmitting hole set in the center of the connecting seat and the punching rod. The light emitted by the laser transmitter can be projected onto the upper before punching, which plays a positioning indicator role, making it convenient for operators to confirm the punching position more accurately and improve the punching accuracy. Moreover, the connecting seat with punching rods of different specifications can be replaced with the stud threaded connection as needed to meet the punching requirements of holes of different sizes and shapes, thereby enhancing the versatility and adaptability of the equipment. The material return assembly (composed of the first spring and the material return ring) arranged below the punching rod solves the problem that the material is easily stuck on the punching rod after punching. When the punching rod rises after penetrating the upper material, the material return ring will push out the material remaining on the punching rod under the elastic force of the first spring, realizing automatic material return, avoiding the tedious manual cleaning, improving the punching efficiency, and ensuring the smoothness of continuous operation; The pre-positioning component can be used to conveniently press down and position the material to ensure the accuracy of the punching. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a bottom view schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the main structure of the present invention; Figure 3 It is a partial bottom view schematic diagram of the structure of the present invention; Figure 4 It is a partial top view schematic diagram of the structure of the present invention; Figure 5 It is a schematic diagram of a partial explosion of the structure of the present invention from above; Figure 6 The structure of the present invention Figure 5 A partial enlarged schematic diagram in the middle; Figure 7 It is a schematic diagram of a partial explosion top view of the structure of the present invention; Figure 8 The structure of the present invention Figure 7 A partial enlarged schematic diagram of point B in the middle.

[0015] In the figure: 1. workbench; 2. outriggers; 3. back plate; 4. top plate; 5. first lifter; 6. lifter plate; 7. guide frame; 8. motor; 9. screw; 10. slider; 11. support plate; 12. crossbeam; 13. guide rod; 14. upper limit plate; 15. lower limit plate; 16. second lifter; 17. punch rod; 18. retractor frame; 19. mounting seat; 20. stud; 21. laser transmitter; 22. connecting seat; 23. first spring; 24. material removal ring; 25. auxiliary rod; 26. mounting plate; 27. pressure plate; 28. second spring; 29. ​​telescopic rod; 30. guide seat. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-8 A punching device for shoemaking, comprising a workbench 1, a lifting assembly, legs 2, a punching assembly and an adjusting assembly, wherein the legs 2 are arranged at the four corners below the workbench 1, the lifting assembly comprises a back plate 3, a top plate 4, a first lifter 5 and a lifting plate 6, the back plate 3 is arranged on the back side above the workbench 1, the top plate 4 is arranged on the front side above the back plate 3, the first lifter 5 penetrates the top plate 4 and is connected to the lifting plate 6; The workbench 1, as the core bearing component of the entire punching device, provides a stable installation foundation for the lifting component, adjustment component, punching component, and material pre-positioning component, ensuring that the components can maintain a relatively fixed position relationship during operation and ensuring the orderly development of the punching operation. The legs 2 arranged at the four corners below support the workbench 1 so that it can be stably placed on the ground or other working planes, bearing the weight of the entire device and the upper materials placed on the workbench 1. The back plate 3 is installed on the back side above the workbench 1 to provide a stable support for the top plate 4. The first lifter 5 on the top plate 4 (with a stable telescopic function, such as a common cylinder or electric push rod) has its telescopic end passing through the top plate 4 and connected to the lifting plate 6. When the first lifter 5 is started, if the first lifter 5 is extended, its telescopic end will push the lifting plate 6 to move downward in the vertical direction; conversely, if the first lifter 5 is retracted, the lifting plate 6 will move upward. For example, in the initial preparation stage, the first lifter 5 can be controlled to extend to lower the lifting plate 6, driving the connected adjustment components and punching components to approach the workbench 1, so as to facilitate the subsequent positioning and punching operations on the upper material; when the punching is completed and needs to be reset, the first lifter 5 is controlled to retract to drive the components back to the initial position. The auxiliary rod 25 that passes through the top plate 4 is set on the lifting plate 6. During the lifting and lowering process of the lifting plate 6, the auxiliary rod 25 slides along the corresponding hole or groove (matched with the auxiliary rod 25) on the top plate 4, playing a guiding and limiting role, preventing the lifting plate 6 from being unstable such as left-right deviation and shaking when moving up and down, ensuring that the lifting and lowering action of the lifting plate 6 is smooth and accurate, and ensuring the stability and punching accuracy of the entire punching device; In actual use, the adjustment assembly includes a guide frame 7, a motor 8, a screw 9, a slider 10, a support plate 11, a crossbeam 12, a guide rod 13, an upper limit plate 14 and a lower limit plate 15. The guide frame 7 is an isosceles trapezoid. The left and right sides of the guide frame 7 are symmetrically provided with first guide holes. The left and right sides of the lifting plate 6 are connected to the guide frame 7. The front and rear sides of the guide frame 7 are symmetrically provided with the support plates 11. The motor 8 is provided on the support plate 11 located at the front. The screw 9 is also rotatably provided at the center of the two groups of support plates 11. The output end of the motor 8 is connected to the guide frame 7. The support plate 11 is connected to the screw rod 9, the slider 10 is threadedly connected to the screw rod 9, the left and right sides of the slider 10 are symmetrically provided with cross beams 12 that are slidably connected to the top wall and the bottom wall of the guide frame 7, the center of the cross beam 12 is provided with a second guide hole, the guide rod 13 passes through the first guide hole and the second guide hole, the upper limit plate 14 and the lower limit plate 15 are respectively provided on the upper and lower sides of the guide rod 13, the upper limit plate 14 is slidably connected to the top wall of the guide frame 7, the lower limit plate 15 is slidably connected to the cross beam 12, and the two groups of the first guide holes are arranged obliquely; When the motor 8 is started, the motor 8 drives the screw 9 to rotate, and the slider 10 is connected to the screw 9 by threads. Since the guide rod 13 passing through the first guide hole and the second guide hole is provided with an upper limit plate 14 and a lower limit plate 15 on the upper and lower sides to ensure the stable horizontal sliding connection between the cross beam 12 and the guide frame 7, based on the principle of threaded transmission, the slider 10 will make a linear motion along the screw 9. In this process, during the movement of the slider 10, the cross beam 12 slides along the bottom wall of the guide frame 7, and the guide rod 13 slides in the first guide hole and the second guide hole. The upper limit plate 14 and the lower limit plate 15 respectively limit the position of the guide rod 13 in the vertical direction and the position of the cross beam 12 relative to the guide rod 13. These components work together to accurately guide and limit the movement of the slider 10 and the punching assembly connected to the slider 10. Since the first guide hole is arranged obliquely, when the slider 10 moves linearly along the screw 9 under the drive of the screw 9, it will drive the punching assembly to change position in the plane according to the specific track and direction defined by the structure of the guide frame 7 and the connection relationship of each component, so as to realize flexible and accurate punching at different positions of the shoe surface. The operator can control the moving position of the slider 10 by controlling the forward and reverse rotation and rotation time of the motor 8, and then control the punching position, so as to meet the diverse punching layout requirements; In order to punch holes in reasonable quantity and position at the straps arranged symmetrically on the inclined surface; In this embodiment, the punching assembly includes a second lifter 16, a connecting piece and a punching rod 17. The upper and lower ends of the second lifter 16 are respectively connected to the lower limit plate 15 and the connecting piece. The punching rod 17 is arranged below the connecting piece. The second lifter 16 can drive the punching rod 17 to rise and fall through the connecting piece, thereby completing the punching operation. In actual use, the material needs to be positioned to ensure the accuracy of the material punching. A material pre-positioning component is also provided under the support plate 11; In this embodiment, a tool retraction frame 18 is further provided on the workbench 1 to further ensure the accuracy of the punching.

[0018] During actual use, the connecting part includes a mounting seat 19, a stud 20, a laser emitter 21 and a connecting seat 22. The mounting seat 19 is arranged below the second lifter 16, and the stud 20 is also arranged below the mounting seat 19. The laser emitter 21 is embedded in the mounting groove arranged at the center below the stud 20. A screw groove connected to the stud 20 is arranged on the connecting seat 22, and a light-transmitting hole is arranged in the center of the connecting seat 22 and the punching rod 17. Before punching, turn on the laser emitter 21, and the laser beam will be projected onto the upper through the light-transmitting hole to form an obvious light spot. The operator can accurately confirm the punching position based on the position of the light spot to achieve precise positioning, which is convenient for aligning the punching rod 17 with the exact position of the upper for punching according to the design requirements, thereby improving the punching accuracy. In addition, since the connecting seat 22 and the stud 20 are connected by threads, the connecting seat 22 and the stud 20 with punching rods 17 of different specifications (such as different diameters, shapes, etc.) can be replaced as needed to connect, thereby meeting the requirements of punching holes of different sizes and shapes on the upper, thereby enhancing the versatility and adaptability of the equipment. A material return assembly is also provided below the punching rod 17, and the material return assembly includes a first spring 23 and a material return ring 24. A material return groove is also provided below the punching rod 17. The upper and lower sides of the first spring 23 are respectively connected to the material return groove and the material return ring 24. When the punching rod 17 rebounds after being pressed down to penetrate the upper material, since the material return ring 24 is located below the punching rod 17 and is connected to the punching rod 17 through the material return groove and the first spring 23, the first spring 23 is compressed and stores elastic potential energy during the previous pressing process of the punching rod 17. At this time, the first spring 23 releases the elastic potential energy, and pushes the material return ring 24 to move upward along the punching rod 17 through the elastic force, pushing out the material remaining on the punching rod 17, realizing automatic material return, avoiding the tedious operation of manually cleaning the residual material on the punching rod 17, ensuring that the equipment can perform punching operations continuously and efficiently, and improving the punching efficiency.

[0019] In this embodiment, the pre-positioning assembly includes a mounting plate 26, an elastic member and a pressure plate 27. A mounting plate 26 is arranged under each group of support plates 11, and several groups of elastic members are arranged under the mounting plate 26. A pressure plate 27 is also arranged under the elastic member. The elastic member includes a second spring 28 and a telescopic rod 29. The second spring 28 is sleeved on the telescopic rod 29. The upper and lower ends of the second spring 28 and the telescopic rod 29 are respectively connected to the mounting plate 26 and the pressure plate 27. A feeding hole is arranged on the workbench 1, and a bearing groove is also arranged above the feeding hole. The tool retraction frame 18 is arranged in the bearing groove. The pressure plate 27 located on the back side is adapted to the tool retraction frame 18. A guide seat 30 is also arranged in the center of the workbench 1. The mounting plate 26 arranged under each group of support plates 11 is used to fix the elastic member. The elastic member is composed of a second spring 28 sleeved on the telescopic rod 29, and its upper and lower ends are respectively connected to the mounting plate 26 and the pressure plate 27. When the first lifter 5 drives the lifting plate 6 to descend, the material pre-positioning assembly installed under the support plate 11 will descend accordingly, and the pressing plate 27 will first contact the upper material. As the lifting plate 6 continues to descend, the pressing plate 27 starts to work under the action of the elastic member. Due to the elastic characteristics of the second spring 28, the pressing plate 27 will adaptively adjust the degree of downward pressure according to the actual conditions such as the thickness and flatness of the upper material. For example, if the material is thicker, the pressing plate 27 will compress the second spring 28 when pressing down, so that the second spring 28 will produce a greater deformation to provide appropriate pressure; if the surface of the material is uneven, the pressing plate 27 can also achieve fitting downward pressure through different compression degrees of the spring at different parts. In this way, the pressing plate 27 presses the upper material flat on the workbench 1 to preliminarily position the material. Afterwards, even in the process of manually assisting the adjustment of the material flattening and further pressing down to stabilize, the elastic member can still continue to provide appropriate pressure, so that the pressing plate 27 always firmly presses the material, ensuring that the material is fixed in position during the entire punching process, thereby laying the foundation for subsequent precise punching and effectively improving the accuracy and quality of the punching; The tool retract frame 18 is arranged in the bearing groove on the workbench 1. Its main function is to protect the punching rod 17 when the punching rod 17 completes the punching action and rises up, to prevent the punching rod 17 from directly colliding with the workbench 1 and causing damage. When the hole position to be punched changes, other tool retract frames 18 of corresponding specifications need to be replaced.

[0020] The present invention further provides a method for using a punching device for shoemaking, comprising the following steps: Step 1, place the material on the workbench 1, with its inner edge fitting against the outer plate edge of the guide seat 30; Step 2, select a connection seat 22 with a punching rod 17 of appropriate specifications and thread it with the stud 20; Step 3, start the first lifter 5, the first lifter 5 drives the lifting plate 6 to descend, and then the pressing plate 27 presses down the material for pre-positioning; Step 4, the material is flattened by manual assistance, and then the first lifter 5 is further started to continue to extend, and the pressing plate 27 presses the material downward stably; Step 5: The motor 8 drives the screw 9 to intermittently move. As the slider 10 moves to the specified position, the second lifter 16 drives the mounting seat 19 to press down, and the punching rod 17 punches holes in the material; Step 6: Reset the equipment, remove the material, and wait for the next material loading and processing.

[0021] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0022] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0023] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A punching device for shoemaking, comprising a workbench (1), a lifting assembly, legs (2), a punching assembly and an adjustment assembly, characterized in that: The supporting legs (2) are arranged at the four corners below the workbench (1); the lifting assembly comprises a back plate (3), a top plate (4), a first lifter (5) and a lifting plate (6); the back plate (3) is arranged on the back side above the workbench (1); the top plate (4) is arranged on the front side above the back plate (3); the first lifter (5) passes through the top plate (4) and is connected to the lifting plate (6); The adjustment assembly comprises a guide frame (7), a motor (8), a screw (9), a slider (10), a support plate (11), a crossbeam (12), a guide rod (13), an upper limit plate (14) and a lower limit plate (15); the guide frame (7) is in an isosceles trapezoidal shape; first guide holes are symmetrically arranged on the left and right sides of the guide frame (7); the left and right sides of the lifting plate (6) are connected to the guide frame (7); the support plates (11) are symmetrically arranged on the front and rear sides of the guide frame (7); the motor (8) is arranged on the support plate (11) located at the front; the screws (9) are also rotatably arranged at the centers of the two groups of support plates (11); the output end of the motor (8) is connected to the guide plate (7); The support plate (11) is connected to the screw rod (9), the slider (10) is threadedly connected to the screw rod (9), the left and right sides of the slider (10) are symmetrically provided with cross beams (12) whose top walls are slidably connected to the bottom wall of the guide frame (7), the center of the cross beam (12) is provided with a second guide hole, the guide rod (13) passes through the first guide hole and the second guide hole, the upper limit plate (14) and the lower limit plate (15) are respectively provided on the upper and lower sides of the guide rod (13), the upper limit plate (14) is slidably connected to the top wall of the guide frame (7), the lower limit plate (15) is slidably connected to the cross beam (12), and the two groups of the first guide holes are arranged obliquely; The punching assembly comprises a second lifter (16), a connecting piece and a punching rod (17); the upper and lower ends of the second lifter (16) are respectively connected to the lower limit plate (15) and the connecting piece; the punching rod (17) is arranged below the connecting piece; A material pre-positioning component is also provided below the support plate (11); The workbench (1) is also provided with a tool retraction frame (18).

2. A punching device for shoemaking according to claim 1, characterized in that: The connecting member comprises a mounting seat (19), a stud (20), a laser emitter (21) and a connecting seat (22); the mounting seat (19) is arranged below the second lifter (16); the stud (20) is also arranged below the mounting seat (19); a mounting groove is arranged at the center below the stud (20); the laser emitter (21) is embedded in the mounting groove; a screw groove connected to the stud (20) is arranged on the connecting seat (22); and a light-transmitting hole is arranged at the center of the connecting seat (22) and the punching rod (17).

3. A punching device for shoemaking according to claim 2, characterized in that: A material return assembly is also provided below the punching rod (17), the material return assembly comprising a first spring (23) and a material return ring (24). A material return groove is also provided below the punching rod (17), the upper and lower sides of the first spring (23) are respectively connected to the material return groove and the material return ring (24).

4. A punching device for shoe manufacturing according to claim 3, characterized in that: The lifting plate (6) is also provided with an auxiliary rod (25) penetrating the top plate (4).

5. A punching device for shoe manufacturing according to claim 4, characterized in that: The pre-positioning assembly comprises a mounting plate (26), an elastic member and a pressing plate (27); a mounting plate (26) is arranged below each group of support plates (11); a plurality of groups of elastic members are arranged below the mounting plate (26); and a pressing plate (27) is also arranged below the elastic member.

6. A punching device for shoe manufacturing according to claim 5, characterized in that: The elastic member comprises a second spring (28) and a telescopic rod (29), the second spring (28) being sleeved on the telescopic rod (29), and the upper and lower ends of the second spring (28) and the telescopic rod (29) are respectively connected to the mounting plate (26) and the pressing plate (27).

7. A punching device for shoe manufacturing according to claim 6, characterized in that: The workbench (1) is provided with a material discharge hole, and a bearing groove is further provided above the material discharge hole. The tool withdrawal frame (18) is arranged in the bearing groove, and the pressure plate (27) located on the back side is adapted to the tool withdrawal frame (18).

8. A punching device for shoe manufacturing according to claim 7, characterized in that: A guide seat (30) is also provided at the center of the workbench (1).

9. A method for using a punching device for shoemaking, comprising the punching device for shoemaking according to any one of claims 1 to 8, characterized in that: The steps include: Step 1, placing the material on the workbench (1), with its inner edge being in contact with the outer edge of the guide seat (30); Step 2, select a connection seat (22) with a punching rod (17) of appropriate specifications and thread it with the stud (20); Step 3, starting the first lifter (5), the first lifter (5) drives the lift plate (6) to descend, and then the pressing plate (27) presses down the material to pre-position; Step 4, the material is flattened by manual assistance, and then the first lifter (5) is further started to continue to extend, and the pressing plate (27) steadily presses the material downward; Step 5: The motor (8) drives the screw rod (9) to intermittently move, and as the slider (10) moves to a specified position, the second lifter (16) drives the mounting seat (19) to press downward, and the punching rod (17) punches holes in the material; Step 6: Reset the equipment, remove the material, and wait for the next material loading and processing.

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