Automatic feeder for punch

Abstract

This utility model discloses an automatic feeding machine for punch presses, including a table fixing plate, a lifting base plate slidably connected to the table fixing plate, a frame slidably connected to the lifting base plate, a height adjustment component at the bottom of the table fixing plate, and a moving component on one side of the lifting base plate. The moving component includes a first servo motor, a lead screw, and a moving seat. A drive pulley is provided at the output end of the first servo motor, and a driven pulley is provided at the end of the lead screw near the first servo motor. A first transmission belt connects the drive pulley and the driven pulley. The moving seat is threadedly connected to the lead screw. A sensing plate is provided on the bottom surface of the moving seat, and a photoelectric sensor is installed on the bottom of the sensing plate on the lifting base plate. A feeding component is installed on the frame, and the moving seat is connected to the feeding component. This utility model has the characteristics of high raw material utilization and adaptability to plates of different widths.

Description

Technical Field

[0001] This utility model relates to the technical field of punch press processing equipment, specifically to an automatic punch press feeder. Background Technology

[0002] In modern industrial production, the automatic feeder for punch presses is a core component of the stamping production line. It plays a crucial role in accurately transporting the workpiece to the punch press station. By replacing manual operation with automated material transfer, it not only significantly improves production efficiency but also significantly reduces labor intensity and human error.

[0003] However, existing feeders cannot move and adjust according to the stamping requirements during the stamping process, making it difficult to achieve efficient collaborative operation with the stamping machine. This results in the material plate not being fully utilized, causing a large amount of raw material waste and reducing the utilization rate of the material plate. Secondly, traditional feeders mostly adopt a fixed guiding structure, which can only adapt to material plates of a specific width. Although some feeders have simple adjustment mechanisms, the material plate is prone to displacement due to vibration during the feeding process, making it impossible to continuously keep the material plate in the center position.

[0004] Therefore, it is necessary to design an automatic punch press feeder that has high raw material utilization and can adapt to plates of different widths. Utility Model Content

[0005] The purpose of this invention is to provide an automatic feeder for punch presses to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automatic feeding machine for a punch press, including a table fixing plate, a lifting base plate slidably connected to the table fixing plate, a frame slidably connected to the lifting base plate, a height adjustment component at the bottom of the table fixing plate, and a moving component on one side of the lifting base plate. The moving component includes a first servo motor, a lead screw, and a moving seat. A drive pulley is provided at the output end of the first servo motor, and a driven pulley is provided at the end of the lead screw near the first servo motor. A first transmission belt connects the drive pulley and the driven pulley, and the lead screw is threaded through the moving seat. The movable seat is driven by the lead screw to slide along the lead screw. The bottom surface of the movable seat is provided with a sensing plate. The lifting base plate is equipped with several photoelectric sensors at the bottom of the sensing plate. A feeding assembly is installed on the frame. The movable seat is connected to the feeding assembly. The first servo motor drives the movable seat to move linearly on the lead screw. The movable seat drives the feeding assembly to move. The sensing plate passes through the photoelectric sensors and feeds back the position information of the feeding assembly to the control system in real time. The control system dynamically adjusts the feeding position by controlling the speed of the first servo motor, so that the movement of the feeding assembly is synchronized with the punching stroke of the punch press.

[0007] According to the above technical solution, the feeding assembly includes a receiving frame, a second servo motor, a transmission shaft, an upper roller, a lower roller, and a discharge base plate. The receiving frame is provided with a plurality of receiving rollers and a first adjusting groove. A first adjusting seat is slidably connected to both sides of the first adjusting groove. A first guide wheel and a locking handle are provided on the first adjusting seat. A second adjusting groove is provided on the discharge base plate. A second adjusting seat is slidably connected to both sides of the second adjusting groove. A second guide wheel and a locking bolt are provided on the second adjusting seat. A pressure plate is connected to the discharge base plate to apply a constraint force to the material plate in cooperation with the second guide wheel. By loosening the locking handle and the locking bolt, the distance between the first adjusting seat and the second adjusting seat on both sides is adjusted so that the first guide wheel and the second guide wheel fit against the edges of the material plate on both sides.

[0008] According to the above technical solution, a first pulley is provided at the output end of the second servo motor, a second pulley is provided at the end of the transmission shaft near the second servo motor, a second transmission belt is connected between the first pulley and the second pulley, and the first pulley and the second pulley are synchronously driven through the second transmission belt, a third pulley is provided at the other end of the transmission shaft, a fourth pulley is provided at the end of the lower roller near the third pulley, the diameter ratio of the third pulley to the fourth pulley is 1:3, a third transmission belt is connected between the fourth pulley and the third pulley, a first spur gear is provided at the other end of the lower roller, a second spur gear is provided at the end of the upper roller near the first spur gear, the second spur gear meshes with the first spur gear, and the lower roller and the upper roller rotate synchronously relative to each other through the second spur gear and the first spur gear, thereby moving the material plate between the lower roller and the upper roller.

[0009] According to the above technical solution, the height adjustment component includes a top column and a lower top block. The lower top block is installed at the bottom of the tabletop fixing plate. The top column is threadedly connected to the lower top block. A handwheel is provided at one end of the top column, and the other end of the top column is connected to the lifting base plate. A scale is provided on one side of the tabletop fixing plate, and a height pointer corresponding to the scale is provided on one side of the lifting base plate. The lifting base plate has slots on both sides of the top column. Bolts are connected to the slots. The bolt bodies pass through the slots, and the bolts are connected to locking blocks. The locking blocks are fitted to the tabletop fixing plate.

[0010] According to the above technical solution, a first fixed guide rail is installed on both sides of the tabletop fixing plate, and a limit block is provided at both ends of the first fixed guide rail. A lifting slider is provided on both sides of the lifting base plate near the tabletop fixing plate, and the lifting slider is slidably connected to the first fixed guide rail. A second fixed guide rail is provided on both sides of the lifting base plate away from the tabletop fixing plate, and a transverse slider is slidably connected to the second fixed guide rail. The transverse slider is connected to the frame.

[0011] According to the above technical solution, fixed seats are installed on both sides of the lifting base plate, the two ends of the lead screw are rotatably connected to the fixed seats, a motor mounting plate is installed on the lifting base plate, the first servo motor is installed on the motor mounting plate, and several covers are provided around the frame.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0013] (1) By setting a moving component, the first servo motor drives the moving seat through the belt pulley and the lead screw, and the position is fed back in real time with the induction plate and photoelectric sensor, so that the feeding component can be precisely synchronized with the stamping stroke of the punch press. The feeding position can be dynamically adjusted according to the stamping requirements, maximizing the use of the effective area of ​​the material plate, reducing edge waste, and significantly improving the material utilization rate.

[0014] (2) By setting an adjustable feeding component, the first adjustment seat and the second adjustment seat, together with the locking handle and the locking bolt, can flexibly adjust the distance between the first guide wheel and the second guide wheel to adapt to different specifications of material plates. With the help of the pressure plate, stable clamping and guiding are achieved, which solves the limitation of traditional feeders that can only adapt to specific material plate widths. Attached Figure Description

[0015] 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:

[0016] Figure 1 This is a schematic diagram of the structural composition of this utility model;

[0017] Figure 2 This is an exploded view of the mobile component structure of this utility model;

[0018] Figure 3 This is an exploded view of the feeding component structure of this utility model;

[0019] Figure 4 This is a split view of the bottom structure of the feeding component of this utility model;

[0020] Figure 5 This is a structural diagram of the height adjustment component of this utility model;

[0021] Figure 6 This is a schematic diagram of the guide rail and slider structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the internal structure of the frame of this utility model;

[0023] In the diagram: 10. Tabletop fixing plate; 101. Scale ruler; 11. Lifting base plate; 111. Lifting slider; 112. Height pointer; 12. Frame; 121. Horizontal slider; 122. Cover; 13. First fixed guide rail; 131. Limit block; 14. Second fixed guide rail; 20. Height adjustment assembly; 21. Top column; 22. Lower top block; 23. Handwheel; 24. Groove; 25. Bolt; 26. Locking block; 30. Moving assembly; 31. First servo motor; 311. Motor mounting plate; 32. Lead screw; 321. Fixed base; 33. Moving base; 34. Driven pulley; 35. Driven pulley; 36. First transmission belt; 37. Sensor plate; 38. 40. Photoelectric sensor; 41. Feeding assembly; 42. Receiving frame; 43. Receiving roller; 44. First adjusting groove; 45. First adjusting seat; 46. First guide wheel; 47. Locking handle; 48. Second servo motor; 49. First pulley; 40. Second transmission belt; 41. Drive shaft; 42. Second pulley; 43. Third pulley; 44. Upper roller; 45. Second spur gear; 46. Lower roller; 47. Fourth pulley; 48. Third transmission belt; 49. First spur gear; 40. Discharge base plate; 41. Second adjusting groove; 42. Second adjusting seat; 43. Second guide wheel; 44. Locking bolt; 45. Pressure plate. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0025] This utility model provides a technical solution: an automatic feeding machine for a punch press, including a table fixing plate 10, a lifting base plate 11 slidably connected to the table fixing plate 10, a frame 12 slidably connected to the lifting base plate 11, a height adjustment component 20 provided at the bottom of the table fixing plate 10, and a moving component 30 provided on one side of the lifting base plate 11. The moving component 30 includes a first servo motor 31, a lead screw 32, and a moving seat 33. A drive pulley 34 is provided at the output end of the first servo motor 31, a driven pulley 35 is provided at the end of the lead screw 32 near the first servo motor 31, a first transmission belt 36 is connected between the drive pulley 34 and the driven pulley 35, and the lead screw 32 is threaded through the moving seat 33. The seat 33 and the lead screw 32 drive the moving seat 33 to slide along the lead screw 32. The bottom surface of the moving seat 33 is provided with a sensing plate 37. The lifting base plate 11 is equipped with several photoelectric sensors 38 at the bottom of the sensing plate 37. The frame 12 is equipped with a feeding assembly 40. The moving seat 33 is connected to the feeding assembly 40. The first servo motor 31 drives the moving seat 33 to move linearly on the lead screw 32. The moving seat 33 drives the feeding assembly 40 to move. The sensing plate 37 passes through the photoelectric sensors 38 and feeds back the position information of the feeding assembly 40 to the control system in real time. The control system dynamically adjusts the feeding position by controlling the speed of the first servo motor 31 so that the movement of the feeding assembly 40 is synchronized with the punching stroke of the punch press.

[0026] Through this technical solution, the first servo motor 31 drives the lead screw 32 to rotate via the active pulley 34, the first transmission belt 36, and the driven pulley 35, causing the moving seat 33 to move linearly along the lead screw 32, thereby adjusting the left and right horizontal position of the feeding assembly 40. The sensing plate 37 and photoelectric sensor 38 of the moving seat 33 provide real-time feedback of position signals to the control system, so that the movement of the feeding assembly 40 is synchronized with the punching stroke of the punch press, dynamically adjusting the feeding position, maximizing the utilization of the effective area of ​​the material plate, and reducing edge waste.

[0027] Furthermore, the feeding assembly 40 includes a receiving frame 41, a second servo motor 42, a drive shaft 43, an upper roller 44, a lower roller 45, and a discharge base plate 46. The receiving frame 41 is equipped with a plurality of receiving rollers 411 and a first adjusting groove 412. First adjusting seats 413 are slidably connected to both sides of the first adjusting groove 412. The first adjusting seats 413 are equipped with a first guide wheel 414 and a locking handle 415. The discharge base plate 46 has a second adjusting groove 461. The two sides of the second adjustment groove 461 are slidably connected to the second adjustment seat 462. The second adjustment seat 462 is provided with the second guide wheel 463 and the locking bolt 464. The discharge bottom plate 46 is connected to the pressure plate 465 for cooperating with the second guide wheel 463 to apply a constraint force to the material plate. By loosening the locking handle 415 and the locking bolt 464, the distance between the first adjustment seat 413 on both sides and the second adjustment seat 462 on both sides is adjusted so that the first guide wheel 414 and the second guide wheel 463 are in contact with the two sides of the material plate.

[0028] With this technical solution, the first adjusting seat 413 and the second adjusting seat 462 can slide flexibly in the corresponding adjusting grooves. According to the actual width of the material plate, the operator can adjust the distance between the first guide wheel 414 and the second guide wheel 463 by loosening the locking handle 415 and the locking bolt 464 to accurately fit the two sides of the material plate, so as to achieve stable clamping and guiding of material plates of different specifications. This solves the problem that the existing feeder can only be adapted to specific material plate widths. The pressure plate 465, together with the first guide wheel 414 and the second guide wheel 463, continuously applies a stable constraint force to the material plate to ensure that the material plate always remains in the centered stamping position.

[0029] Furthermore, a first pulley 421 is provided at the output end of the second servo motor 42, and a second pulley 431 is provided at one end of the transmission shaft 43 near the second servo motor 42. A second transmission belt 422 connects the first pulley 421 and the second pulley 431, and the first pulley 421 and the second pulley 431 are synchronously driven through the second transmission belt 422. A third pulley 432 is provided at the other end of the transmission shaft 43, and a fourth pulley 451 is provided at one end of the lower roller 45 near the third pulley 432. The diameter ratio of the fourth pulley 432 to the fourth pulley 451 is 1:3. The fourth pulley 451 is connected to the third pulley 432 by a third transmission belt 452. The other end of the lower roller 45 is provided with a first spur gear 453. The upper roller 44 is provided with a second spur gear 441 near the end of the first spur gear 453. The second spur gear 441 is meshed with the first spur gear 453. The lower roller 45 and the upper roller 44 rotate synchronously relative to each other through the second spur gear 441 and the first spur gear 453, thereby moving the material plate between the lower roller 45 and the upper roller 44.

[0030] With this technical solution, the second servo motor 42 drives the transmission shaft 43 to rotate via the first pulley 421 and the second pulley 431 and the second transmission belt 422. The other end of the transmission shaft 43 transmits power to the lower roller 45 via the third transmission belt 452 through the third pulley 432 and the fourth pulley 451. The upper roller 44 achieves relative rotation at the same speed as the lower roller 45 through the meshing of the first spur gear 453 and the second spur gear 441, thereby realizing efficient power transmission.

[0031] Furthermore, the height adjustment assembly 20 includes a top column 21 and a lower top block 22. The lower top block 22 is installed at the bottom of the tabletop fixing plate 10. The top column 21 is threadedly connected to the lower top block 22. A handwheel 23 is provided at one end of the top column 21, and the other end of the top column 21 is connected to the lifting base plate 11. A scale 101 is provided on one side of the tabletop fixing plate 10, and a height pointer 112 corresponding to the scale of the scale 101 is provided on one side of the lifting base plate 11. The lifting base plate 11 has slots 24 on both sides of the top column 21. Bolts 25 are connected to the slots 24. The bolts 25 pass through the slots 24 and are connected to locking blocks 26. The locking blocks 26 are fitted to the tabletop fixing plate 10.

[0032] With this technical solution, the operator can rotate the handwheel 23 to drive the threaded pair of the top column 21 and the lower top block 22 to move, so that the lifting base plate 11 can be smoothly raised and lowered along the fixed plate 10 of the table, thereby realizing the height adjustment of the feeding component 40. The design of the scale 101 and the height pointer 112 allows the operator to intuitively read the current height value. After the height adjustment is completed, the operator can tighten the bolt 25 to press the locking block 26 to lock the height of the feeder, prevent the height from changing due to vibration during the operation of the equipment, and ensure the stability of the feeding height.

[0033] Furthermore, the tabletop fixing plate 10 is equipped with first fixed guide rails 13 on both sides, and limit blocks 131 are provided at both ends of the first fixed guide rails 13. The lifting base plate 11 is provided with lifting sliders 111 on both sides of the side close to the tabletop fixing plate 10. The lifting sliders 111 are slidably connected to the first fixed guide rails 13. The lifting base plate 11 is provided with second fixed guide rails 14 on both sides of the side away from the tabletop fixing plate 10. The second fixed guide rails 14 are slidably connected with transverse sliders 121, and the transverse sliders 121 are connected to the frame 12.

[0034] With this technical solution, the lifting base plate 11 moves vertically up and down along the first fixed guide rail 13 via the lifting slider 111, while the frame 12 slides horizontally left and right along the second fixed guide rail 14 via the transverse slider 121, and the limiting block 131 limits the maximum stroke of the lifting base plate 11.

[0035] Furthermore, fixed seats 321 are installed on both sides of the lifting base plate 11, and the two ends of the lead screw 32 are rotatably connected to the fixed seats 321. A motor mounting plate 311 is installed on the lifting base plate 11, the first servo motor 31 is installed on the motor mounting plate 311, and several covers 122 are provided around the frame 12.

[0036] Through this technical solution, the lead screw 32 is stably supported by the fixed seats 321 at both ends and driven to rotate by the first servo motor 31 to achieve high-precision linear transmission. The motor mounting plate 311 and the fixed seats 321 are both fixed on the lifting base plate 11 to ensure the rigidity and synchronization of the drive system. The cover 122 can effectively protect the internal structure and reduce the interference of external dust and foreign objects, thereby improving the reliability of equipment operation.

[0037] Working principle: First, the operator adjusts the vertical height of the feeding assembly 40 using the height adjustment component 20 according to the height of the punch press. By rotating the handwheel 23, the top column 21 and the lower top block 22 drive the lifting base plate 11 to rise and fall along the first fixed guide rail 13 through threaded transmission. The scale 101 and height pointer 112 are used for precise positioning. After adjustment, the bolt 25 is tightened to press the locking block 26 to fix the height. At the same time, by loosening the locking handle 415 and the locking bolt 464, the positions of the first adjusting seat 413 and the second adjusting seat 462 are adjusted so that the first guide wheel 414 and the second guide wheel 463 are adapted to the width of the material plate. Then, they are tightened to fix the material plate. The pressure plate 465 is used to achieve stable clamping of the material plate.

[0038] After the equipment is started, the first servo motor 31 starts to work. The active pulley 34 at its output end drives the driven pulley 35 on the lead screw 32 to rotate through the first transmission belt 36. The rotation of the lead screw 32 drives the moving seat 33 to move linearly along the lead screw 32, thereby adjusting the left and right horizontal position of the feeding assembly 40. The sensing plate 37 and photoelectric sensor 38 at the bottom of the moving seat 33 monitor the position of the feeding assembly 40 in real time and feed the signal back to the control system, so that the movement of the feeding assembly 40 is synchronized with the punching stroke of the punch press, maximizing the utilization of the material plate area.

[0039] Meanwhile, the second servo motor 42 drives the transmission shaft 43 to rotate via the first pulley 421, the second transmission belt 422, and the second pulley 431. The transmission shaft 43 then drives the lower roller 45 to rotate via the third pulley 432, the third transmission belt 452, and the fourth pulley 451. The upper roller 44 rotates at the same speed as the lower roller 45 through the meshing of the first spur gear 453 and the second spur gear 441, smoothly conveying the material plate from the receiving frame 41 to the discharge base plate 46 and into the working area of ​​the punch press.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or specific orientation structure and operation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0041] In the description of this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, those skilled in the art can combine different embodiments or examples and features of different embodiments or examples described in this utility model without contradiction.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding machine for a punch press, comprising a table fixing plate (10), characterized in that: The tabletop fixing plate (10) is slidably connected to a lifting base plate (11), and the lifting base plate (11) is slidably connected to a frame (12). A height adjustment component (20) is provided at the bottom of the tabletop fixing plate (10), and a moving component (30) is provided on one side of the lifting base plate (11). The moving component (30) includes a first servo motor (31), a lead screw (32), and a moving seat (33). A drive pulley (34) is provided at the output end of the first servo motor (31), and a driven pulley (35) is provided at the end of the lead screw (32) near the first servo motor (31). A first transmission belt (36) is connected between the drive pulley (34) and the driven pulley (35). The lead screw (32) is threaded through the moving seat (33), and the lead screw (32) drives the moving seat (33) along... The lead screw (32) slides, and the bottom surface of the moving seat (33) is provided with a sensor (37). The lifting base plate (11) is equipped with several photoelectric sensors (38) at the bottom of the sensor (37). The frame (12) is equipped with a feeding assembly (40). The moving seat (33) is connected to the feeding assembly (40). The first servo motor (31) drives the moving seat (33) to move linearly on the lead screw (32). The moving seat (33) drives the feeding assembly (40) to move. The sensor (37) passes through the photoelectric sensors (38) and feeds back the position information of the feeding assembly (40) to the control system in real time. The control system dynamically adjusts the feeding position by controlling the speed of the first servo motor (31) so that the movement of the feeding assembly (40) is synchronized with the punching stroke of the punch press.

2. The automatic feeding machine for a punch press according to claim 1, characterized in that: The feeding assembly (40) includes a receiving frame (41), a second servo motor (42), a transmission shaft (43), an upper roller (44), a lower roller (45), and a discharge base plate (46). The receiving frame (41) is equipped with several receiving rollers (411). The receiving frame (41) is also equipped with a first adjusting groove (412). First adjusting seats (413) are slidably connected to both sides of the first adjusting groove (412). The first adjusting seats (413) are equipped with a first guide wheel (414) and a locking handle (415). The discharge base plate (46) is provided with a second adjusting groove (461). The second adjustment groove (461) is slidably connected to the two sides of the second adjustment seat (462). The second adjustment seat (462) is provided with the second guide wheel (463) and the locking bolt (464). The discharge bottom plate (46) is connected to the pressure plate (465) for cooperating with the second guide wheel (463) to apply a constraint force to the material plate. By loosening the locking handle (415) and the locking bolt (464), the distance between the first adjustment seat (413) on both sides and the second adjustment seat (462) on both sides is adjusted so that the first guide wheel (414) and the second guide wheel (463) fit against the two sides of the material plate.

3. The automatic feeding machine for a punch press according to claim 2, characterized in that: The output end of the second servo motor (42) is provided with a first pulley (421), and the transmission shaft (43) is provided with a second pulley (431) near the end of the second servo motor (42). A second transmission belt (422) is connected between the first pulley (421) and the second pulley (431). The first pulley (421) and the second pulley (431) are synchronously driven by the second transmission belt (422). The other end of the transmission shaft (43) is provided with a third pulley (432), and the lower roller (45) is provided with a fourth pulley (451) near the end of the third pulley (432). The third pulley (432) is connected to the output end of the second servo motor (42). The diameter ratio of the fourth pulley (451) is 1:

3. A third transmission belt (452) is connected between the fourth pulley (451) and the third pulley (432). A first spur gear (453) is provided at the other end of the lower roller (45). A second spur gear (441) is provided at the end of the upper roller (44) near the first spur gear (453). The second spur gear (441) meshes with the first spur gear (453). The lower roller (45) and the upper roller (44) rotate synchronously relative to each other through the second spur gear (441) and the first spur gear (453), thereby moving the material plate between the lower roller (45) and the upper roller (44).

4. The automatic feeding machine for a punch press according to claim 1, characterized in that: The height adjustment assembly (20) includes a top column (21) and a lower top block (22). The lower top block (22) is installed at the bottom of the tabletop fixing plate (10). The top column (21) is threadedly connected to the lower top block (22). A handwheel (23) is provided at one end of the top column (21), and the other end of the top column (21) is connected to the lifting base plate (11). A scale (101) is provided on one side of the tabletop fixing plate (10), and a height pointer (112) corresponding to the scale of the scale (101) is provided on one side of the lifting base plate (11). The lifting base plate (11) has slots (24) on both sides of the top column (21). Bolts (25) are connected to the slots (24). The bolts (25) pass through the slots (24), and locking blocks (26) are connected to the bolts (25). The locking blocks (26) are fitted to the tabletop fixing plate (10).

5. An automatic punch press feeder according to claim 1, characterized in that: The tabletop fixing plate (10) is equipped with first fixed guide rails (13) on both sides. Limit blocks (131) are provided at both ends of the first fixed guide rails (13). Lifting base plate (11) is provided with lifting sliders (111) on both sides of the side close to the tabletop fixing plate (10). The lifting sliders (111) are slidably connected to the first fixed guide rails (13). The lifting base plate (11) is provided with second fixed guide rails (14) on both sides of the side away from the tabletop fixing plate (10). The second fixed guide rails (14) are slidably connected with transverse sliders (121). The transverse sliders (121) are connected to the frame (12).

6. The automatic feeder for a punch press according to claim 1, characterized in that: The lifting base plate (11) is equipped with fixed seats (321) on both sides. The two ends of the lead screw (32) are rotatably connected to the fixed seats (321). The lifting base plate (11) is equipped with a motor mounting plate (311). The first servo motor (31) is mounted on the motor mounting plate (311). The frame (12) is surrounded by several covers (122).

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