Circular magnetic powder cloth pad punch forming die

Abstract

The utility model relates to punch forming die technical field, concretely is round magnetic powder cloth pad punch forming die. Including frame, be equipped with two interlocking roll up roll on the frame, and the composite medicine band is coiled between two roll up rolls, and the reciprocating punching mechanism is installed on the frame, and the reciprocating punching mechanism is connected with the punching frame of up and down reciprocating motion and the rotating main shaft, the first shaft sleeve and the second shaft sleeve are rotatably installed on the punching frame respectively, the first shaft sleeve and the second shaft sleeve are driven synchronously through the main shaft, the shaping shaft is slidably installed in the first shaft sleeve, and the shaping shaft rotates synchronously with the first shaft sleeve, the bottom of the shaping shaft is installed with the hot shaping disc, the bottom surface of the hot shaping disc is embedded with a plurality of indentation beads, and the anti -pressure spring is connected between the shaping shaft and the first shaft sleeve. The utility model has the beneficial effect that: in view of the problem that the normal temperature static indentation leads to the fuzzy positioning mark and the weak magnetic powder binding force in the prior art, the utility model realizes the breakthrough improvement through the linkage design of the hot shaping disc and the annular punch.

Description

Technical Field

[0001] This utility model relates to the field of stamping forming die technology, specifically a circular magnetic powder cloth pad stamping forming die. Background Technology

[0002] As a key component in the field of medical heat therapy, the molding quality of circular magnetic powder cloth pads directly affects product performance. The stamping molds for circular magnetic powder cloth pads must meet the core requirements of uniform magnetic powder distribution, burr-free edges, no material adhesion, and high dimensional accuracy. Currently, the mainstream circular magnetic powder cloth pad stamping equipment in the industry has revealed several technical defects in long-term practical application, failing to meet high-specification production demands. Specific technical problems are as follows: The existing equipment's forming mechanism is mostly a room-temperature mechanical static indentation design, and it has no linkage control with the punching mechanism. During punching, the ring cutter cannot accurately align with the positioning reference, resulting in large dimensional errors in the cloth pad. Some products even have missing corners at the edges. On the other hand, it lacks a synchronous heating forming function, resulting in weak bonding between the magnetic powder and the substrate. During the punching process, the blade pull can easily cause the magnetic powder to fall off. In addition, the existing equipment's forming shaft and punching shaft are driven independently. When the formed area to be punched is transported to the punching station, circumferential misalignment is likely to occur, further aggravating the dimensional accuracy problem. At the same time, the existing device is not convenient for automatic unloading after the cloth pad is punched and formed. Based on this, the present invention provides a circular magnetic powder cloth pad stamping mold to solve the problems mentioned in the background art. Utility Model Content

[0003] This utility model addresses the technical problems existing in the prior art by providing a circular magnetic powder cloth pad stamping forming die. This solves the problem that the forming mechanism of existing equipment is mostly a room temperature mechanical static indentation design, and there is no linkage control with the punching mechanism. At the same time, the existing device is not convenient to realize automatic unloading after the cloth pad is stamped.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A circular magnetic powder cloth pad stamping forming mold includes a frame, two interconnected rollers on the frame, a composite medicine strip wound between the two rollers, a reciprocating punching mechanism installed on the frame, a punching frame that moves up and down and a rotating main shaft connected to the reciprocating punching mechanism, a first bushing and a second bushing respectively rotatably installed on the punching frame, the first bushing and the second bushing being synchronously driven by the main shaft, a shaping shaft being slidably installed inside the first bushing, and the shaping shaft rotating synchronously with the first bushing. The forming shaft is equipped with a hot forming plate at its bottom end. The bottom surface of the hot forming plate is embedded with multiple indentation beads. A compression spring connects the forming shaft to the first bushing. An annular punch is installed at the bottom end of the second bushing. A feeding frame is slidably connected to the punching frame. An ejector feeding mechanism is provided between the feeding frame and the punching frame. A top material plate that is linked to the second bushing is rotatably installed on the feeding frame. The top material plate is located inside the annular punch. A vision probe is installed on the punching frame. A sorting and conveying mechanism that achieves directional material discharge based on the feedback results of the vision probe is installed on the frame.

[0005] Based on the above technical solution, the present invention can be further improved as follows.

[0006] As a preferred technical solution of this utility model, it also includes a winding motor mounted on the frame, a first synchronous toothed belt connecting the two winding rollers, and the output shaft end of the winding motor being fixedly connected to one of the winding rollers.

[0007] As a preferred technical solution of this utility model, the reciprocating punching mechanism includes a servo motor mounted on a frame, the output shaft of the servo motor being fixedly connected to the main shaft, an eccentric cam being rotatably mounted on the frame, and a first bevel gear being mounted on both the eccentric cam and the main shaft, the two first bevel gears being orthogonally meshed, the punching frame being slidably connected to the frame, and two return springs being installed between the punching frame and the frame, a follower wheel being rotatably mounted on the punching frame, and the outer contour of the eccentric cam rollingly contacting the wheel surface of the follower wheel.

[0008] As a preferred technical solution of this utility model, both the first bushing and the second bushing have through grooves with openings at both ends. The shaping shaft is slidably connected to the through groove at the first bushing and the shaping shaft. The shaping shaft has a synchronization groove with an opening at the top end. The synchronization groove is slidably connected to the main shaft. A second synchronization toothed belt is connected between the first bushing and the second bushing. A push shaft is installed on the top surface of the top plate. The push shaft is rotatably installed on the unloading frame. The through groove at the second bushing is slidably connected to the push shaft. The cross-sections of the through groove, the synchronization groove, the push shaft, the main shaft, and the shaping shaft are all regular polygons.

[0009] As a preferred technical solution of this utility model, the ejection and unloading mechanism includes a reciprocating lead screw and a synchronous shaft rotatably connected to the punching frame. The reciprocating lead screw is connected to the unloading frame in a transmission manner. A second bevel gear is installed on both the synchronous shaft and the reciprocating lead screw. The two second bevel gears mesh orthogonally. A synchronous gear is installed on the synchronous shaft. An unloading toothed plate that meshes with the synchronous gear is installed on the frame.

[0010] As a preferred technical solution of this utility model, the sorting and conveying mechanism includes a transmission module installed on the frame, a ring conveyor belt being drivenly connected to the transmission module, and receiving boxes being movably installed on the frame at positions corresponding to both sides of the ring conveyor belt, with the ring conveyor belt positioned directly below the composite medicine belt.

[0011] As a preferred technical solution of this utility model, the bottom end of the annular punch is provided with a V-shaped annular cutting edge, both the annular punch and the hot forming plate are equipped with heating wires, a microcontroller is installed on the frame, and the data terminal of the vision probe and the electrical control terminal of the transmission module are both connected to the microcontroller.

[0012] The beneficial effects of this utility model are: 1. Addressing the problems of blurred positioning marks and weak magnetic powder bonding caused by static indentation at room temperature in existing technologies, this utility model achieves a breakthrough improvement through the linkage design of a hot forming disc and a ring punch. The hot forming disc has a built-in heating wire that can heat to a set temperature. Combined with the synchronous rotation of the forming shaft and the first bushing and the pressure compensation of the anti-compression spring, the composite strip is dynamically hot-pressed before punching. On the one hand, after the substrate is softened by high temperature, the indentation beads can press out clear positioning marks, solving the problem of ring knife alignment deviation caused by the high hardness of the substrate at room temperature, and reducing the punching error of the cloth pad size. On the other hand, the hot pressing process promotes the intermolecular bonding between the magnetic powder and the substrate, reducing the magnetic powder shedding rate caused by the pulling of the cutting edge during punching. Compared with the existing technology where forming and punching are independent and not linked, this solution achieves the sequential connection of hot forming and punching processes through the same main shaft drive, ensuring that the positioning marks and the punching trajectory are coaxial. It creatively integrates the heating function with mechanical motion, breaking through the technical problem of traditional mold static processing at room temperature.

[0013] 2. To address the problems of low efficiency and easy mold contamination caused by manual material feeding in existing devices, this utility model designs an integrated linkage mechanism for punching and feeding. When the punching frame moves down, the synchronous gear meshes with the feeding tooth plate fixed to the frame. The feeding frame is driven to slide through the reciprocating screw, which drives the top plate to rotate along the inner side of the annular punch to push out the product. This design uses the up-and-down movement of the punching frame itself as the power source, eliminating the need for additional drive components and achieving automatic feeding timing matching after punching is completed. The V-shaped annular cutting edge at the bottom of the annular punch and the fitting design of the top plate can thoroughly remove the substrate debris remaining on the cutting edge, solving the problem of secondary processing caused by the adhesion of traditional mold punching.

[0014] 3. To address the problem of defective products being mixed in due to the lack of online quality inspection in existing technologies, this utility model integrates a screening system that links a vision probe with a circular conveyor belt. When the punched fabric pads fall onto the circular conveyor belt, the vision probe collects product images in real time. The microcontroller analyzes the dimensional accuracy and edge flatness, and controls the transmission module to drive the conveyor belt to rotate in the forward or reverse direction, sending qualified or unqualified products into the receiving boxes on both sides respectively. This design constructs a closed-loop control for the entire process of processing, inspection, and sorting. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a circular magnetic powder cloth pad stamping mold; Figure 2 for Figure 1 A structural diagram from another perspective; Figure 3 This is a schematic diagram of the eccentric cam and servo motor. Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure; Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0016] The attached diagram lists the components represented by each number as follows: 1. Frame; 2. Roller; 3. Punching frame; 4. Main shaft; 5. First bushing; 6. Second bushing; 7. Shaping shaft; 8. Hot shaping disc; 9. Indentation bead; 10. Compression spring; 11. Ring punch; 12. Unloading rack; 13. Top plate; 14. Vision probe; 15. Winding motor; 16. Servo motor; 17. Eccentric cam; 18. Return spring; 19. Follower wheel; 20. Push shaft; 21. Reciprocating screw; 22. Synchronous shaft; 23. Synchronous gear; 24. Unloading toothed plate; 25. Transmission module; 26. Circular conveyor belt; 27. Receiving box; 28. Composite medicine belt; 29. ​​Microcontroller. Detailed Implementation

[0017] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0018] The present invention provides the following preferred embodiments. like Figure 1-5 As shown, the circular magnetic powder cloth pad stamping mold includes a frame 1, on which two interconnected rollers 2 are provided, and a composite medicine strip 28 is wound between the two rollers 2. It also includes a winding motor 15 mounted on the frame 1, a first synchronous toothed belt connecting the two winding rollers 2, and the output shaft end of the winding motor 15 being fixedly connected to one of the winding rollers 2.

[0019] Both rollers 2 are equipped with a first pulley that is connected to the first synchronous toothed belt; After the winding motor 15 starts, its output shaft drives the winding roller 2 fixed to it to rotate. The winding roller 2 transmits power synchronously to the other winding roller 2 through the first synchronous toothed belt, so that the two winding rollers 2 keep rotating at the same speed and in opposite directions, thereby realizing the stable and uniform conveying of the composite medicine belt 28 between the two winding rollers 2, providing a continuous and precise supply of raw materials for subsequent punching and shaping processes. The first synchronous toothed belt drive ensures a constant transmission ratio between the two rollers 2, preventing slippage, deviation, or stretching deformation during the conveying of the composite medicine belt 28, thus ensuring the conveying accuracy of the medicine belt. A reciprocating punching mechanism is installed on the frame 1, and a punching frame 3 that moves up and down and a rotating spindle 4 are connected to the reciprocating punching mechanism; The reciprocating punching mechanism includes a servo motor 16 mounted on the frame 1. The output shaft of the servo motor 16 is fixedly connected to the main shaft 4. An eccentric cam 17 is rotatably mounted on the frame 1. Both the eccentric cam 17 and the main shaft 4 are equipped with first bevel gears. The two first bevel gears mesh orthogonally. The punching frame 3 is slidably connected to the frame 1. Two return springs 18 are installed between the punching frame 3 and the frame 1. A follower wheel 19 is rotatably mounted on the punching frame 3. The outer contour of the eccentric cam 17 rolls in contact with the wheel surface of the follower wheel 19. When the servo motor 16 starts, the output shaft drives the main shaft 4 to rotate. The main shaft 4 transmits power to the eccentric cam 17 through two orthogonally meshing first bevel gears, so that the eccentric cam 17 rotates synchronously. When the eccentric cam 17 rotates, its outer contour pushes the follower wheel 19 on the punching frame 3. Combined with the elastic reset effect of the return spring 18 between the punching frame 3 and the frame 1, the punching frame 3 is driven to make a stable up-and-down reciprocating punching motion along the vertical direction of the frame 1. At the same time, the main shaft 4 continues to rotate to provide power for the subsequent shaft sleeve transmission. A first bushing 5 and a second bushing 6 are rotatably mounted on the punching frame 3. The first bushing 5 and the second bushing 6 are synchronously driven by the main shaft 4. A shaping shaft 7 is slidably mounted inside the first bushing 5, and the shaping shaft 7 rotates synchronously with the first bushing 5. A hot forming plate 8 is installed at the bottom end of the forming shaft 7. Multiple indentation beads 9 are embedded on the bottom surface of the hot forming plate 8. A compression spring 10 is connected between the forming shaft 7 and the first bushing 5. An annular punch 11 is installed at the bottom end of the second bushing 6. A feeding rack 12 is slidably connected to the punching frame 3. An ejection feeding mechanism is provided between the feeding rack 12 and the punching frame 3. A top feeding plate 13 that is linked with the second bushing 6 is rotatably installed on the feeding rack 12. The top feeding plate 13 is located inside the annular punch 11. The outer circumferential surface of the top plate 13 is provided with a polytetrafluoroethylene wear-resistant layer, which is in clearance fit with the inner wall of the annular punch 11. The bottom end of the annular punch 11 is provided with a V-shaped annular cutting edge, and both the annular punch 11 and the hot forming plate 8 are equipped with heating wires. The working temperature of the heat shaping plate 8 is 80-120℃, and ±2℃ precision control is achieved through the PID temperature control module and the microcontroller 29 electrically connected. When the punching frame 3 moves down, the first bushing 5 drives the shaping shaft 7 to rotate synchronously. The hot shaping plate 8 is heated to the set temperature by the built-in heating wire. The bottom indentation bead 9 first contacts the composite drug strip 28. Under the pressure compensation of the anti-compression spring 10, the composite drug strip 28 is hot-pressed and shaped in the punching area. The positioning marks are pressed out while the magnetic powder is more evenly distributed and a positioning punching reference ring is generated. Subsequently, the V-shaped circumferential cutting edge at the bottom of the annular punch 11 contacts the composite drug strip 28, completing the punching of the circular magnetic powder pad; After punching is completed, the top plate 13 rotates with the second bushing 6 and drives the ejector feeding mechanism to work at the specified feeding height. After the ejector feeding mechanism works, it drives the top plate 13 to slide along the inner side of the annular punch 11 to push the punched cloth pad out from the annular punch 11 to avoid sticking.

[0020] The hot pressing and shaping function of the hot shaping disc 8 can soften the substrate of the composite strip 28 by adjusting the temperature, making the positioning marks pressed by the indentation beads 9 clearer, providing a precise positioning reference for subsequent punching. At the same time, the high temperature can promote the bonding between the magnetic powder and the substrate, reducing the shedding of magnetic powder after punching. Compared to traditional flat-edge cutting blades, V-shaped circumferential cutting edges are sharper and the force is more concentrated during punching, which can reduce punching resistance, prevent burrs and tears from appearing on the edges of the magnetic powder pad, and improve the flatness of the punched surface. The fitting design of the top plate 13 and the annular punch 11 can completely remove the residual cloth pad inside the annular punch 11, prevent the residual cloth pad from affecting the next punching accuracy, and avoid the inefficiency and mold contamination problems caused by manual cleaning. The first bushing 5 and the second bushing 6 are both provided with through grooves with openings at both ends. The shaping shaft 7 is slidably connected to the through groove at the first bushing 5. The shaping shaft 7 is provided with a synchronous groove with an opening at the top. The synchronous groove is slidably connected to the main shaft 4. A second synchronous toothed belt is connected between the first bushing 5 and the second bushing 6. Both the first bushing 5 and the second bushing 6 are equipped with second pulleys that are connected to the second synchronous toothed belt. A push shaft 20 is installed on the top surface of the top material plate 13. The push shaft 20 is rotatably installed on the unloading frame 12. The through groove at the second bushing 6 is slidably connected to the push shaft 20. The cross-sections of the through groove, the synchronous groove, the push shaft 20, the main shaft 4 and the shaping shaft 7 are all regular polygons. When the main shaft 4 rotates, it drives the shaping shaft 7 to rotate through the synchronous groove with a regular polygonal structure. At the same time, the shaping shaft 7 can slide up and down along the regular polygonal through groove of the first bushing 5 to achieve a composite motion of synchronous rotation and axial movement. The first bushing 5 drives the second bushing 6 to rotate synchronously via the second synchronous toothed belt. The second bushing 6 drives the push shaft 20 to rotate via the regular polygonal through groove. The push shaft 20 can slide up and down along the through groove at the same time, ensuring that the top plate 13 and the annular punch 11 rotate synchronously and can realize the axial pushing action.

[0021] Compared to the traditional circular structure, the regular polygonal structure can fully transmit torque, avoid relative slippage between the shaft and the bushing, ensure the rotational synchronization of the shaping shaft 7, the top plate 13 and the main shaft 4, and ensure the accurate indentation position of the hot shaping plate 8 and the stable pushing of the top plate 13. Meanwhile, the regular polygonal structure provides guidance for the axial sliding of the shaft, preventing radial movement during axial sliding. This ensures uniform pressure during hot forming of the forming shaft 7 and tight contact between the ejector plate 13 and the inner wall of the annular punch 11 during ejection, further improving the overall running accuracy and stability of the mold. The ejection and unloading mechanism includes a reciprocating screw 21 and a synchronous shaft 22 rotatably connected to the punching frame 3. The reciprocating screw 21 is connected to the unloading frame 12. A second bevel gear is installed on both the synchronous shaft 22 and the reciprocating screw 21. The two second bevel gears mesh orthogonally. A synchronous gear 23 is installed on the synchronous shaft 22. An unloading toothed plate 24 that meshes with the synchronous gear 23 is installed on the frame 1. When the punching frame 3 moves up and down, it drives the synchronous shaft 22 to move up and down synchronously. After the punching is completed and the punching frame 3 continues to move down a specified stroke, the synchronous gear 23 on the synchronous shaft 22 begins to mesh with the unloading toothed plate 24 fixed on the frame 1. The rotation of the gear drives the synchronous shaft 22 to rotate. Synchronous shaft 22 transmits power to reciprocating screw 21 through two orthogonally meshing second bevel gears. The rotation of reciprocating screw 21 drives the unloading frame 12 connected to it to slide along the punching frame 3, thereby driving the top plate 13 to achieve precise axial pushing action. The pushing stroke can be precisely controlled by the tooth pitch of the unloading tooth plate 24 and the number of teeth of synchronous gear 23. A vision probe 14 is installed on the punching frame 3, and a sorting and conveying mechanism is installed on the frame 1 to achieve directional material discharge based on the feedback results of the vision probe 14.

[0022] The images acquired by the vision probe 14 are used to measure the actual diameter of the punching residual hole and compare it with the preset standard value. At the same time, it detects whether there are burrs or missing corners on the edge of the punching residual hole, and makes a comprehensive judgment on whether the product is qualified. A microcontroller 29 is installed on the rack 1. The data terminal of the vision probe 14 and the electrical control terminal of the transmission module 25 are both connected to the microcontroller 29. The sorting and conveying mechanism includes a transmission module 25 mounted on a frame 1. A ring conveyor belt 26 is connected to the transmission module 25. A receiving box 27 is movably mounted on the frame 1 at positions corresponding to both sides of the ring conveyor belt 26. The ring conveyor belt 26 is positioned directly below the composite drug belt 28.

[0023] When the cloth pad is qualified, the microcontroller 29 controls the transmission module 25 to drive the circular conveyor belt 26 to rotate in the forward direction and transport the cloth pad to the receiving box 27 on one side. When the fabric pad is unqualified, the microcontroller 29 controls the transmission module 25 to run in reverse, conveying the unqualified fabric pad to the receiving box 27 on the other side, realizing automatic screening and classification.

[0024] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circular magnetic powder cloth pad stamping die, comprising a frame (1), wherein two interconnected rollers (2) are provided on the frame (1), characterized in that, A composite drug strip (28) is wound between two rollers (2). A reciprocating punching mechanism is installed on the frame (1). A punching frame (3) that moves up and down and a rotating main shaft (4) are connected to the reciprocating punching mechanism. A first bushing (5) and a second bushing (6) are rotatably installed on the punching frame (3). The first bushing (5) and the second bushing (6) are driven synchronously by the main shaft (4). A shaping shaft (7) is slidably installed inside the first bushing (5). The shaping shaft (7) rotates synchronously with the first bushing (5). A hot shaping plate (8) is installed at the bottom end of the shaping shaft (7). A number of indentation beads (9) are embedded on the bottom surface of the hot shaping plate (8). A compression spring (10) is connected between the shaping shaft (7) and the first bushing (5). A ring punch (11) is installed at the bottom of the second bushing (6). A feeding rack (12) is slidably connected to the punching frame (3). A feeding mechanism is provided between the feeding rack (12) and the punching frame (3). A top material plate (13) that is linked with the second bushing (6) is rotatably installed on the feeding rack (12). The top material plate (13) is located inside the ring punch (11). A vision probe (14) is installed on the punching frame (3). A sorting and conveying mechanism that realizes directional discharge based on the feedback result of the vision probe (14) is installed on the frame (1).

2. The circular magnetic powder cloth pad stamping die according to claim 1, characterized in that, It also includes a winding motor (15) mounted on the frame (1), a first synchronous toothed belt connecting the two winding rollers (2), and the output shaft end of the winding motor (15) being fixedly connected to one of the winding rollers (2).

3. The circular magnetic powder cloth pad stamping die according to claim 1, characterized in that, The reciprocating punching mechanism includes a servo motor (16) mounted on the frame (1). The output shaft of the servo motor (16) is fixedly connected to the main shaft (4). An eccentric cam (17) is rotatably mounted on the frame (1). A first bevel gear is mounted on both the eccentric cam (17) and the main shaft (4). The two first bevel gears mesh orthogonally. The punching frame (3) is slidably connected to the frame (1). Two return springs (18) are installed between the punching frame (3) and the frame (1). A follower wheel (19) is rotatably mounted on the punching frame (3). The outer contour of the eccentric cam (17) rolls in contact with the wheel surface of the follower wheel (19).

4. The circular magnetic powder cloth pad stamping die according to claim 1, characterized in that, The first bushing (5) and the second bushing (6) are both provided with through grooves with openings at both ends. The shaping shaft (7) is slidably connected to the through groove at the first bushing (5). The shaping shaft (7) is provided with a synchronous groove with an opening at the top. The synchronous groove is slidably connected to the main shaft (4). The first bushing (5) and the second bushing (6) are connected by a second synchronous toothed belt. The top surface of the top material plate (13) is equipped with a push shaft (20). The push shaft (20) is rotatably mounted on the unloading rack (12). The through groove at the second bushing (6) is slidably connected to the push shaft (20). The cross-sections of the through groove, the synchronous groove, the push shaft (20), the main shaft (4) and the shaping shaft (7) are all regular polygons.

5. The circular magnetic powder cloth pad stamping die according to claim 1, characterized in that, The ejection and unloading mechanism includes a reciprocating screw (21) and a synchronous shaft (22) rotatably connected to the punching frame (3). The reciprocating screw (21) is connected to the unloading frame (12) in a transmission manner. A second bevel gear is installed on both the synchronous shaft (22) and the reciprocating screw (21). The two second bevel gears mesh orthogonally. A synchronous gear (23) is installed on the synchronous shaft (22). An unloading toothed plate (24) that meshes with the synchronous gear (23) is installed on the frame (1).

6. The circular magnetic powder cloth pad stamping die according to claim 1, characterized in that, The sorting and conveying mechanism includes a transmission module (25) mounted on a frame (1), a ring conveyor belt (26) is connected to the transmission module (25), and receiving boxes (27) are movably installed on the frame (1) at positions corresponding to both sides of the ring conveyor belt (26). The ring conveyor belt (26) is located directly below the composite drug belt (28).

7. The circular magnetic powder cloth pad stamping die according to claim 6, characterized in that, The bottom end of the annular punch (11) is provided with a V-shaped annular cutting edge. The annular punch (11) and the hot forming plate (8) are both equipped with heating wires. A microcontroller (29) is installed on the frame (1). The data terminal of the vision probe (14) and the electrical control terminal of the transmission module (25) are both connected to the microcontroller (29).

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