Punch adjusting device of punching machine
By designing an adjustable punch adjustment device for punching machine, the combination of sliding blocks and limit rods solves the problem that existing punching machines cannot process the perforations on both sides of the upper at the same time, achieving flexibility in adapting to the perforation positions of different shoes without changing the mold design, reducing production costs and improving the diversity of use.
Patent Information
- Application Number
- CN202421663808.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-15
AI Technical Summary
When the existing punching machines are processed by perforating shoe ropes, they cannot process the perforations on the left and right sides of the upper at the same time. The perforations of each pair of shoes are different, resulting in the need to frequently design new stamping molds, which increases production costs and simplicity of use.
A punch adjustment device for punching machine is designed. Through the cooperation of the sliding block and the limiting rod, the punching head allows the flexibly adjusting its position without changing the mold design to adapt to the shoe rope piercing position of different shoes. The device includes a lifting device, a mounting frame, a fixing block, a sliding block, a stamping head, an outer mounting block, an inner mounting plate, a limiting rod and an adjusting member. Through the cooperation of these components, the flexible movement of the stamping head is achieved.
It realizes the flexible adjustment of the stamping head position without redesigning the stamping mold, adapting to the shoe rope perforation position of different shoes, reducing production costs, improving the diversity of use, and improving the processing efficiency of shoe rope perforation.
Smart Images
Figure CN222819158U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field, in particular to a punch adjustment device for a punching machine. Background Art
[0002] In the process of shoe production, the punching of shoe laces on the upper is the main production process, and the punching machine is needed to process the shoe laces. The punching machine is a mechanical device that is driven by a power mechanism after the raw materials are installed, and the punching die acts on the material to complete the punching. It is suitable for punching leather, sheepskin, artificial leather, plastic, PU, EVA, PVC, various cloth, paper, leather accessories, uppers, trims, curtains, car leather seats, etc.
[0003] like Figure 1 As shown, the shoe upper punching machine in the prior art includes a connecting plate, a lifting device arranged at the upper end of the connecting plate, a plurality of fixed blocks arranged at the lower end of the connecting plate, a slider slidably arranged on each of the fixed blocks, a punching head arranged on the slider, a pushing rod threadedly connected to the fixed block and located on the left side of the slider, a compression spring arranged between the right end of the slider and the fixed block, and a workbench arranged below the punching head. Since the shoelace holes on the upper are divided into left and right sides, and the shoelace holes on the left and right sides are symmetrically arranged on the upper, before the shoelace holes on the upper need to be processed, the operator first places the upper on the workbench below the punching head, and twists the push rod according to the position of the shoelace holes, so that the push rod and the compression spring cooperate to realize the left and right movement of the punching head, so that each punching head corresponds to the position of the shoelace holes, and then the connecting plate is driven by the lifting device to drive the punching head to descend, so that multiple punching heads can process the shoelace holes on one side at one time, and the shoelace holes can be located before stamping. During the stamping process, the operator only needs to place the upper at the specified position to quickly realize the shoelace holes.
[0004] However, the punching machine can only punch the shoelace holes on one side in batches during processing. When the shoelace holes on the other side need to be punched, the punching head needs to be adjusted again to correspond to the shoelace holes on the other side, and then the shoe uppers of the same batch are placed on the workbench to punch the shoelace holes on the other side. It is impossible to directly punch the shoelace holes on the left and right sides of the shoe uppers during processing.
[0005] Since the shoelace holes of some casual shoes and sports shoes are arranged irregularly, and the shoelace holes on the left and right sides are symmetrically arranged, in order to improve the punching efficiency of the shoelace holes, the stamping die needs to be designed according to the positions of the shoelace holes on the upper before the shoes are produced, so that the position of each stamping head corresponds to each shoelace hole. Each shoelace hole can be directly processed at one time during processing in the stamping die, thereby improving the punching efficiency of the upper.
[0006] Although designing the stamping die in advance can improve the punching efficiency of shoelace holes, the arrangement of shoelace holes in each pair of shoes is different, and the position of the punching head cannot be changed after each design of the stamping die, resulting in the need to redesign a new stamping die, which has high production costs. Customers cannot change the position of the punching head according to the arrangement of the shoelace holes in the shoes, and the use is relatively simple. Utility Model Content
[0007] The utility model aims to provide a punch adjustment device for a punching machine which does not require redesign of the punching die, has low production cost and is more versatile in use, in view of the defects and shortcomings of the prior art.
[0008] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a punch adjustment device for a punching machine, comprising a machine body, a lifting device arranged on the machine body, a mounting frame arranged at the lower end of the lifting device, a plurality of fixed blocks arranged at the lower end of the mounting frame, a sliding block slidably arranged at the lower end of each of the fixed blocks for sliding forward or backward on the fixed block when driven by an external force, a punching head arranged at the lower end of the sliding block, and also comprising an outer mounting block arranged at the lower end of each of the fixed blocks and located at the front side of the sliding block, and a plurality of fixed blocks arranged at the lower end of each of the fixed blocks and located at the front side of the sliding block. An inner mounting plate on the rear side of the sliding block, a limiting rod respectively arranged on the outer mounting block and the inner mounting plate for limiting the front side or the rear side of the sliding block when the sliding block slides forward or backward on the fixed block to a predetermined position, an adjusting member arranged between the limiting rod and the outer mounting block and the inner mounting plate for controlling the limiting rod to move forward or backward on the outer mounting block and the inner mounting plate, and a pushing device arranged between the inner mounting plate and the sliding block for pushing the sliding block to slide forward or backward on the fixed block to a predetermined position so that the limiting rod limits the sliding block.
[0009] A further improvement is that: the adjusting member is: the limiting rod is threadedly connected to the outer mounting block and the inner mounting plate respectively.
[0010] A further improvement is that a driving part is arranged on the end of the limiting rod away from the sliding block, and a hexagonal hole is arranged on the driving part.
[0011] A further improvement is that the pushing device includes a telescopic cylinder whose fixed end is arranged on the inner mounting plate and whose output end passes through the inner mounting plate and is connected to the rear end of the sliding block; the bottom of the mounting frame is located on the rear side of the fixed block and is provided with an air intake manifold and an air outlet manifold; the lower ends of the air intake manifold and the air outlet manifold are respectively connected to the telescopic cylinder through the air intake pipe and the air outlet pipe; an electromagnetic valve controller is arranged on the machine body, and the air intake manifold and the air outlet manifold are connected to the electromagnetic valve controller.
[0012] A further improvement is that a control pedal is provided at the bottom of the machine body, and the control pedal is electrically connected to the solenoid valve controller.
[0013] A further improvement is that: transverse sliding grooves are provided on the left and right sides of the fixed block, and a transverse sliding block is provided on the sliding block and is located in the transverse sliding groove, and a clearance fit is formed between the transverse sliding block and the transverse sliding groove.
[0014] A further improvement is that a mounting slot is provided at the rear end of the sliding block, and the output end of the telescopic cylinder is threadedly connected to the mounting slot.
[0015] A further improvement is that an elastic buffer block is arranged on the end face of the limit rod close to the sliding block; the elastic buffer block is a rubber block or a nylon block.
[0016] A further improvement is that an adjustment device for pushing the fixing blocks to move closer to or away from each other is provided between the fixing blocks and the mounting frame.
[0017] A further improvement is that the adjustment device includes a sliding groove opened at the lower end of the mounting frame, a transverse support rod transversely arranged at the lower end of the mounting frame and located in the sliding groove, a connecting slider fixedly arranged at the upper end of each of the fixed blocks and slidingly matched with the transverse support rod, a pushing spring arranged between each of the fixed blocks and sleeved on the outer side of the transverse support rod, two threaded rods respectively threadedly connected to the left and right ends of the mounting frame, and rotating hand wheels respectively arranged on the two threaded rods for driving the threaded rods to rotate by hand, and the sliding groove is arranged transversely.
[0018] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: before the production of shoes, the upper is first placed on the workbench, the position of the shoelace perforation is marked on the upper, and the sliding block is pushed forward on the fixed block by the pushing device so that the sliding block abuts against the limit rod of the outer mounting block. At this time, the limit rod is controlled to move forward or backward by the adjusting member so that the punching head corresponds to the shoelace perforation on one side, and then the sliding block is pushed backward on the fixed block by the pushing device so that the sliding block abuts against the limit rod on the inner mounting plate, and then the limit rod is controlled to move forward or backward by the adjusting member so that the punching head corresponds to the shoelace perforation on the other side. Corresponding to the holes for shoelaces, customers can change the position of the limit rod according to the arrangement of the holes for shoelaces in the shoes, thereby changing the moving position of the punching head. There is no need to redesign the punching die, the production cost is low, and the use is more diverse. During processing, the sliding block is first pushed forward on the fixed hole block to the limit rod on the front side through the pushing device, and the mounting frame is controlled to descend through the lifting device to drive the punching head to punch the shoe upper and then rise after punching. At this time, the sliding block is pushed backward on the fixed block to the limit rod on the rear side through the pushing device, and then the punching head is controlled by the lifting device to punch the shoe upper, thereby realizing the punching processing of the shoe upper.
[0019] Further effect: when twisting, the limit rod can move forward or backward on the outer mounting block or the inner mounting plate through the cooperation of the thread. When the limit rod stops rotating, the limit rod is positioned on the outer mounting block or the inner mounting plate through the self-locking property of the thread, thereby fixing the limit rod.
[0020] Further effect: the driving part can facilitate the hand to twist the limit rod, and the hexagonal hole can be used by the tool to drive the limit rod to rotate.
[0021] Further effect: the elastic buffer block can buffer the impact of the sliding block when the sliding block collides with the limiting rod, thereby reducing the vibration caused by the sliding block colliding with the limiting rod.
[0022] Further effect: when the punching head needs to correspond to the position of the shoe rope perforation on the upper, the hand wheel is held and turned in the forward direction, thereby driving the threaded rod to rotate to push the connecting slider toward the middle part of the mounting frame, thereby reducing the distance between the punching heads. When the hand wheel is turned in the reverse direction, the spring is pushed to release elastic potential energy, thereby pushing the connecting slider away from the middle part of the mounting frame, so that the distance between the punching heads can be adjusted according to the spacing between the shoe rope perforations on the upper. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0024] Figure 1 It is a structural schematic diagram of the utility model;
[0025] Figure 2 It is a side view of the mounting frame, the fixed block and the sliding block in the utility model;
[0026] Figure 3 It corresponds to Figure 1 A magnified view of part A;
[0027] Figure 4 It is a cutaway view of the regulating device in the utility model.
[0028] Description of the accompanying drawings: body 1, lifting device 2, mounting frame 3, fixing block 4, sliding block 5, punching head 6, outer mounting block 7, inner mounting plate 8, limiting rod 9, driving part 10, inner hexagonal hole 11, telescopic cylinder 12, air inlet manifold 13, air outlet manifold 14, solenoid valve controller 15, control pedal 16, transverse slide groove 17, transverse slide block 18, installation slot 19, elastic buffer block 20, air inlet pipe 21, air outlet pipe 22, sliding slot 23, transverse support rod 24, connecting slide block 25, push spring 26, threaded rod 27, rotating hand wheel 28 DETAILED DESCRIPTION
[0029] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.
[0030] See also Figures 1 to 4As shown, the technical solution adopted in this specific embodiment is: a punch adjustment device for a punching machine, comprising a body 1, a lifting device 2 arranged on the body 1, a mounting frame 3 arranged at the lower end of the lifting device 2, a plurality of fixed blocks 4 arranged at the lower end of the mounting frame 3, a sliding block 5 slidably arranged at the lower end of each of the fixed blocks 4 for sliding forward or backward on the fixed block 4 when driven by an external force, a punch head 6 arranged at the lower end of the sliding block 5, and also comprising an outer mounting block 7 arranged at the lower end of each of the fixed blocks 4 and located in front of the sliding block 5, and a plurality of fixed blocks 4 arranged at the lower end of each of the fixed blocks 4 and located in front of the sliding block 5. The inner mounting plate 8 on the rear side of the mounting frame 3, the limiting rod 9 respectively arranged on the outer mounting block 7 and the inner mounting plate 8 for limiting the front side or rear side of the sliding block 5 when the sliding block 5 slides forward or backward on the fixed block 4 to a predetermined position, the adjusting member arranged between the limiting rod 9 and the outer mounting block 7 and the inner mounting plate 8 for controlling the limiting rod 9 to move forward or backward on the outer mounting block 7 and the inner mounting plate 8, and the pushing device arranged between the inner mounting plate 8 and the sliding block 5 for pushing the sliding block 5 to slide forward or backward on the fixed block 4 to a predetermined position so that the limiting rod 9 limits the sliding block 5. The lifting device 2 is a lifting rod, the lower end of the lifting rod is fixedly connected to the upper end of the mounting frame 3, the lifting rod is connected to the telescopic motor or the telescopic cylinder 12, or the upper end of the lifting rod is arranged on the eccentric wheel, the eccentric wheel is driven by the rotating motor, and the lifting rod is lifted or lowered when the motor drives the eccentric wheel to rotate, which will not be described in detail. The number of fixing blocks 4 can be set according to the number of shoelace holes in the shoe. In order to improve the stability of the limit rod 9 on the outer mounting block 7 and the inner mounting plate 8, a nut is provided at the end close to the outer mounting block 7 and the inner mounting plate 8. When adjusting, the nut is first turned away from the end of the outer mounting block 7 and the inner mounting plate 8, and then the limit rod 9 is rotated to adjust. After the adjustment is completed, the nut is turned again to move closer to the end of the outer mounting block 7 and the inner mounting plate 8, thereby improving the stability of the limit rod 9.
[0031] The adjusting member is: the limiting rod 9 is threadedly connected to the outer mounting block 7 and the inner mounting plate 8 respectively.
[0032] A driving portion 10 is disposed on the end of the limiting rod 9 away from the sliding block 5 , and a hexagonal hole 11 is formed on the driving portion 10 .
[0033] The pushing device includes a telescopic cylinder 12 whose fixed end is arranged on the inner mounting plate 8 and whose output end passes through the inner mounting plate 8 and is connected to the rear end of the sliding block 5. The bottom of the mounting frame 3 is located on the rear side of the fixed block 4 and is provided with an air intake manifold 13 and an air outlet manifold 14. The lower ends of the air intake manifold 13 and the air outlet manifold 14 are respectively connected to the telescopic cylinder 12 through the air intake pipe 21 and the air outlet pipe 22. A solenoid valve controller 15 is arranged on the body 1, and the air intake manifold 13 and the air outlet manifold 14 are connected to the solenoid valve controller 15. A control main board is provided on the body 1 at one side of the solenoid valve control, and the control main board is electrically connected to the solenoid valve. A button is provided on the control main board for controlling the power on and off of the solenoid valve, and the air intake manifold 13 is connected to the air supply port of the solenoid valve controller 15 through an air pipe, and the air outlet manifold 14 is connected to the exhaust port through an air pipe; when the button is pressed, the solenoid valve is energized, the air supply port is connected to the compressed air, air pressure is formed inside the cylinder, and the air pressure is input into each telescopic cylinder 12 through the air intake manifold 13, so that the output end of the telescopic cylinder 12 is extended; when the button is released, the solenoid valve is de-energized, the air supply port is connected to the exhaust port, the gas inside the cylinder is released, and the telescopic cylinder 12 is retracted, so that the telescopic movement of the air can be controlled by the button. The number of telescopic cylinders 12 is the same as the number of fixed blocks 4. One end of the air inlet manifold 13 and the air outlet manifold 14 is closed, and the other end is connected to the solenoid valve controller 15 through an air pipe. The air pressure can be delivered to each telescopic cylinder 12 through the air inlet manifold 13 and the air outlet manifold 14, thereby realizing the telescopic action of each telescopic cylinder 12 synchronously.
[0034] A control pedal 16 is provided at the bottom of the machine body 1, and the control pedal 16 is electrically connected to the solenoid valve controller 15. In the case where no control button is provided, the control pedal 16 can be provided so that when the operator needs to control the telescopic action of the telescopic cylinder 12, the solenoid valve controller 15 can be directly controlled by stepping on the control pedal 16, thereby improving the efficiency of punching.
[0035] The fixed block 4 is provided with transverse grooves 17 on both sides, and the sliding block 5 is provided with transverse sliders 18 in the transverse grooves 17, and the transverse sliders 18 are clearance-matched with the transverse grooves 17. The transverse grooves 17 are grooves, and the transverse sliders 18 are convex blocks.
[0036] The rear end of the sliding block 5 is provided with a mounting slot 19, and the output end of the telescopic cylinder 12 is threadedly connected to the mounting slot 19. The output end of the telescopic cylinder 12 can also be directly mounted on the rear end of the sliding block 5 by gluing or welding.
[0037] An elastic buffer block 20 is disposed on the end surface of the limiting rod 9 close to the sliding block 5; the elastic buffer block 20 is a rubber block or a nylon block.
[0038] An adjusting device for pushing the fixing blocks 4 to move closer to or away from each other is provided between the fixing blocks 4 and the mounting frame 3; the adjusting device comprises a sliding slot 23 provided at the lower end of the mounting frame 3, a transverse support rod 24 transversely provided at the lower end of the mounting frame 3 and located in the sliding slot 23, a connecting slider 25 fixedly provided at the upper end of each fixing block 4 and slidingly matched with the transverse support rod 24, a pushing spring 26 provided between each fixing block 4 and sleeved on the outer side of the transverse support rod 24, two threaded rods 27 respectively threadedly connected to the left and right ends of the mounting frame 3, and a rotating hand wheel 28 respectively provided on the two threaded rods 27 for the hand to drive the threaded rod 27 to rotate, and the sliding slot 23 is provided transversely. The pushing spring 26 is a compression spring.
[0039] The working principle of the utility model is as follows: before the production of shoes, the upper is placed on the workbench, the position of the shoe rope perforation is marked on the upper, the solenoid valve controller 15 is powered on by stepping on the control pedal 16, the air supply port is connected to the compressed air, the air pressure is formed inside the cylinder and enters the air intake manifold 13, and the air pressure is simultaneously delivered to each telescopic cylinder 12 through the air intake manifold 13, and the output end of each telescopic cylinder 12 extends to push the sliding block 5 to slide forward on the fixed block 4, so that the sliding block 5 continues to abut against the limit of the outer mounting block 7. The limit rod 9 is on the position rod 9. At this time, the driving part 10 is twisted by hand to rotate the limit rod 9, thereby controlling the limit rod 9 to move forward or backward, so that each punch head 6 corresponds to each shoe rope perforation on one side, and then the solenoid valve controller 15 is powered off by stepping on the control pedal 16, and the air supply port is connected to the exhaust port, so that the gas inside the cylinder is released, so that each telescopic cylinder 12 drives the sliding block 5 to retract, so that the sliding block 5 slides backward on the fixed block 4, and the sliding block 5 continues to abut against the limit rod 9 of the inner mounting plate 8. , and then twist the driving part 10 to drive the limit rod 9 to move forward or backward, so that the punch head 6 corresponds to the shoe rope perforation on the other side. At this time, the position of the limit rod 9 on the outer mounting block 7 and the inner mounting plate 8 has been determined. When the sliding block 5 drives the punch head 6 to move forward or backward to the limit rod 9, the punch head 6 can correspond to the shoe rope perforation on the left or right side of the shoe upper. The customer can change the position of the limit rod 9 according to the sequence position of the shoe rope perforation in the shoe, thereby changing the moving position of the punch head 6, without redesigning the punching die. The tool has low production cost and is more versatile in use. During processing, the sliding block 5 is first pushed forward on the fixed hole block to the limiting rod 9 on the front side by the telescopic cylinder 12, and the mounting frame 3 is controlled to descend by the lifting device 2 to drive the punching head 6 to punch the shoe upper and rise after punching. At this time, the sliding block 5 is pushed backward on the fixed block 4 to the limiting rod 9 on the rear side by the telescopic cylinder 12, and the punching head 6 is controlled by the lifting device 2 to punch the shoe upper, thereby realizing the punching processing of the shoe rope perforations on the left and right sides of the shoe upper;
[0040] When the punching head 6 needs to correspond to the position of the shoelace perforation on the upper, the hand wheel 28 is held and rotated forwardly, thereby driving the threaded rod 27 to rotate to push the connecting slider 25 to the middle part of the mounting frame, thereby reducing the distance between the punching heads 6. When the hand wheel 28 is rotated in the reverse direction, the spring 26 is pushed to release the elastic potential energy, thereby pushing the connecting slider 25 away from the middle part of the mounting frame, so that the fixed block 4 can drive the punching head 6 to move left and right, thereby adjusting the distance between the punching heads 6 according to the spacing between the shoelace perforations on the upper.
[0041] The utility model is intended to protect the structure of the product. The model of each component is not the content of the utility model, and it is also a known technology. Any component on the market that can achieve the above-mentioned function of the utility model can be selected and applied as a punch adjustment device for a punching machine. Therefore, the model and other parameters of the component are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of various components.
[0042] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.
Claims
1. A punch adjustment device for a punching machine, comprising a body, a lifting device arranged on the body, a mounting frame arranged at the lower end of the lifting device, a plurality of fixed blocks arranged at the lower end of the mounting frame, a sliding block slidably arranged at the lower end of each of the fixed blocks for sliding forward or backward on the fixed block when driven by an external force, and a punching head arranged at the lower end of the sliding block, characterized in that: The invention also includes an outer mounting block arranged at the lower end of each of the fixed blocks and located at the front side of the sliding block, an inner mounting plate arranged at the lower end of each of the fixed blocks and located at the rear side of the sliding block, a limiting rod respectively arranged on the outer mounting block and the inner mounting plate for limiting the front side or the rear side of the sliding block when the sliding block slides forward or backward on the fixed block to a predetermined position, an adjusting member arranged between the limiting rod and the outer mounting block and the inner mounting plate for controlling the limiting rod to move forward or backward on the outer mounting block and the inner mounting plate, and a pushing device arranged between the inner mounting plate and the sliding block for pushing the sliding block to slide forward or backward on the fixed block to a predetermined position so that the limiting rod limits the sliding block.
2. A punch adjustment device for a punching machine according to claim 1, characterized in that: The adjusting member is: the limiting rod is threadedly connected to the outer mounting block and the inner mounting plate respectively.
3. A punch adjustment device for a punching machine according to claim 2, characterized in that: A driving part is arranged on the end of the limiting rod away from the sliding block, and a hexagonal hole is arranged on the driving part.
4. A punch adjustment device for a punching machine according to claim 1, characterized in that: The pushing device includes a telescopic cylinder with a fixed end arranged on the inner mounting plate and an output end passing through the inner mounting plate and connected to the rear end of the sliding block. The bottom of the mounting frame is located on the rear side of the fixed block and is provided with an air intake manifold and an air outlet manifold. The lower ends of the air intake manifold and the air outlet manifold are respectively connected to the telescopic cylinder through the air intake pipe and the air outlet pipe. An electromagnetic valve controller is arranged on the machine body, and the air intake manifold and the air outlet manifold are connected to the electromagnetic valve controller.
5. A punch adjustment device for a punching machine according to claim 4, characterized in that: A control pedal is arranged at the bottom of the machine body, and the control pedal is electrically connected to the solenoid valve controller.
6. A punch adjustment device for a punching machine according to claim 1, characterized in that: The fixed block is provided with transverse sliding grooves on both sides thereof, and the sliding block is provided with transverse sliding blocks in the transverse sliding grooves, and the transverse sliding blocks are clearance-matched with the transverse sliding grooves.
7. A punch adjustment device for a punching machine according to claim 4, characterized in that: The rear end of the sliding block is provided with a mounting slot, and the output end of the telescopic cylinder is threadedly connected to the mounting slot.
8. The punch adjustment device for a punching machine according to claim 1, characterized in that: An elastic buffer block is arranged on the end surface of the limiting rod close to the sliding block, and the elastic buffer block is a rubber block or a nylon block.
9. A punch adjustment device for a punching machine according to claim 1, characterized in that: An adjusting device for pushing the fixing blocks to move closer to or away from each other is arranged between the fixing blocks and the mounting frame.
10. A punch adjustment device for a punching machine according to claim 9, characterized in that: The adjusting device includes a sliding groove opened at the lower end of the mounting frame, a transverse support rod transversely arranged at the lower end of the mounting frame and located in the sliding groove, a connecting slider fixedly arranged at the upper end of each of the fixing blocks and slidingly matched with the transverse support rod, a pushing spring arranged between each of the fixing blocks and sleeved on the outer side of the transverse support rod, two threaded rods respectively threadedly connected to the left and right ends of the mounting frame, and rotating hand wheels respectively arranged on the two threaded rods for driving the threaded rods to rotate by hand, and the sliding groove is arranged transversely.