A reverse self-positioning die-cutting die and automatic die-cutting system

Abstract

The application provides a reverse self-positioning die-cutting die and an automatic die-cutting system. The die-cutting die comprises a lower die seat, a first bottom die, a second bottom die, a punch and a die-cutting driving device. The lower die seat is provided with a first material groove. The top wall of the first bottom die is provided with a first top rod and a cutting edge. The cutting edge is located below the first material groove. The top wall of the second bottom die is provided with a second top rod. The cutting edge is located between the first top rod and the second top rod. The punch is located above the first material groove and between the first top rod and the second top rod. The die-cutting driving device drives the first bottom die and the second bottom die to move towards the first material groove. The die-cutting driving device drives the lower die seat, the first bottom die and the second bottom die to move towards the punch. The automatic die-cutting system comprises a feeding mechanism and the die-cutting die. The die-cutting die only needs one die-cutting driving device to complete the positioning and die-cutting operation, and has the advantages of simple structure and low cost.

Description

Technical Field

[0001] The invention relates to the technical field of punching equipment, in particular to a reverse self-positioning punching die and automatic punching. Background Art

[0002] The material strip for injection molded products with metal parts is a commonly used structure in the production process of injection molded products. The material strip for injection molded products with metal parts includes a connecting strip and multiple products. The products include metal parts and plastic parts. The plastic parts are arranged on the metal parts, and the metal parts are connected to the connecting strip. After the injection molding is completed, the product needs to be separated from the connecting strip. The existing method of separating the product from the material strip is generally to pre-break the connection between the material strip and the metal parts, and then manually break and remove the metal parts from the material strip. This method has the disadvantages of low work efficiency and high labor intensity for workers. There is also a punching mold that is used to cut the product and the material strip, but the existing punching mold generally needs to be equipped with a positioning drive device to drive the ejector rod to rise and connect with the product to achieve product positioning. A punching drive device is also required to drive the punch down to separate the product and the material strip. The existing punching mold has a complex structure and needs to be equipped with two drive devices, which is relatively expensive. Summary of the Invention

[0003] The first object of the present invention is to provide a reverse self-positioning punching die that can realize automatic positioning and punching operations with only one punching drive device.

[0004] A second object of the present invention is to provide an automatic punching system that can realize automatic positioning and punching operations with only one punching drive device.

[0005] In order to achieve the above-mentioned first purpose, the present invention provides a reverse self-positioning punching die, including a lower die base, a first bottom die, a second bottom die, a punch and a punching drive device, the lower die base is provided with a first material trough; a first push rod and a cutting edge are provided on the top wall of the first bottom die, and the cutting edge is located below the first material trough; a second push rod is provided on the top wall of the second bottom die, and the cutting edge is located between the first push rod and the second push rod, and the punch cooperates with the cutting edge for punching; the punch is located above the first material trough, and the punch is located between the first push rod and the second push rod; the punching drive device drives the first bottom die and the second bottom die to move toward the first material trough, and the punching drive device drives the lower die base, the first bottom die and the second bottom die to move toward the punch.

[0006] It can be seen from the above scheme that by setting the first push rod and the second push rod, when the punching drive device drives the first bottom die and the second bottom die to move toward the first material trough, the first push rod is inserted in the positioning hole of the product, and the second push rod is inserted in the positioning hole of the connecting strip, so that the product and the connecting strip are tightened by the first push rod and the second push rod. When the punching drive device drives the lower die base, the first bottom die and the second bottom die to move toward the punch, the tightened product and the connecting strip are cut off by the punch, thereby realizing the separation of the product and the connecting strip. The present invention only needs to set up a punching drive device to realize self-positioning and punching operations. Compared with the existing punching die, one drive device is saved, making the structure of the present invention simpler and easier to operate, which is conducive to improving cost reduction and work efficiency.

[0007] A further solution is that the punching mold also includes a first lifting seat, a second lifting seat, an elastic member and an upper mold seat. The first lifting seat, the second lifting seat, the lower mold seat and the upper mold seat are arranged in sequence from bottom to top. The first lifting seat and the second lifting seat are separated by a first preset distance, the second lifting seat and the lower mold seat are separated by a second preset distance, and the lower mold seat and the upper mold seat are separated by a third preset distance. The elastic member elastically abuts between the lower mold seat and the upper mold seat; the punching drive device drives the first lifting seat to move toward the second lifting seat, the first lifting seat pushes the second lifting seat to move toward the lower mold seat, and the second lifting seat pushes the lower mold seat to move toward the upper mold seat.

[0008] It can be seen from the above scheme that by setting a first preset distance between the first lifting seat and the second lifting seat, when the punching drive device drives the first lifting seat to move upward, the first bottom mold and the first push rod first move up the first preset distance, so that the first push rod is inserted into the positioning hole of the product, thereby realizing the positioning of the product in the horizontal direction to ensure the accuracy of the cutting position; by setting a second preset distance between the second lifting seat and the lower mold seat, the first lifting seat pushes the second lifting seat to move up synchronously by the second preset distance, so that the second push rod is inserted into the positioning hole of the connecting strip, thereby realizing the positioning of the connecting strip in the horizontal direction, so that the product and the connecting strip are tightened, further ensuring the accuracy of the cutting position; the second lifting seat pushes the lower mold seat to move upward, so that the first material trough and the material strip in the first material trough move upward synchronously, and when the punch is fixed, the material strip moves toward the punch, and the product and the connecting strip are separated under the action of the knife edge.

[0009] A further solution is that the lower part of the second bottom mold is set on the second lifting seat, and the upper part of the second bottom mold is inserted in the lower mold seat; the lower part of the first bottom mold is set on the first lifting seat, and the upper part of the first bottom mold passes through the second lifting seat and is inserted in the second bottom mold, and the first bottom mold can move up and down relative to the second bottom mold.

[0010] A further solution is that a first avoidance hole and a punch mounting groove are provided on the upper die base, the punch mounting groove is located on the hole wall of the first avoidance hole, the upper part of the punch is located in the punch mounting groove, and the lower part of the punch extends between the first push rod and the second push rod.

[0011] A further solution is that the top wall of the first bottom mold is higher than the top wall of the second bottom mold.

[0012] A further solution is that a first upper clamping plate is provided on the lower die base, and a first material trough is formed between the first upper clamping plate and the lower die base; a first positioning hole is provided on the first upper clamping plate, and the second push rod passes through the first material trough and is inserted into the first positioning hole.

[0013] In order to achieve the second purpose mentioned above, the present invention provides an automatic punching system, which includes a feeding mechanism and a punching die, and the punching die is the punching die mentioned above.

[0014] A further solution is that the feeding mechanism includes a feeding drive motor, a feeding gear and a feeding mounting seat. The feeding mounting seat is provided with a second material trough along the feeding direction. The second material trough is connected to the first material trough. The teeth of the feeding gear are located in the second material trough. The feeding drive motor drives the feeding gear to rotate, and the rotation direction of the feeding gear is tangent to the feeding direction.

[0015] A further solution is that the feeding mounting base is connected to the lower die base and can move up and down with the lower die base.

[0016] A further solution is that the number of the prying gears is set to two, the two prying gears are arranged in parallel and located on both sides of the second material trough, and the two prying gears rotate synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 2 is a structural diagram of a material strip punched using an embodiment of the present invention.

[0018] Figure 2 1 is a structural diagram of an embodiment of a punching die of the present invention.

[0019] Figure 3 It is a cross-sectional view of an embodiment of the punching die of the present invention before punching.

[0020] Figure 4 yes Figure 3 Enlarged view of point C in the middle.

[0021] Figure 5 It is a cross-sectional view of the first bottom mold moving upward relative to the second bottom mold in the punching mold embodiment of the present invention.

[0022] Figure 6 It is a cross-sectional view of the punching die embodiment of the present invention during punching.

[0023] Figure 71 is a structural diagram of an upper die base of a punching die embodiment of the present invention.

[0024] Figure 8 It is a structural diagram of an embodiment of the automatic punching system of the present invention.

[0025] Figure 9 yes Figure 8 Enlarged view of point A in the middle.

[0026] Figure 10 It is a cross-sectional view of the feeding mechanism of the automatic punching system embodiment of the present invention.

[0027] Figure 11 yes Figure 10 Enlarged view of point B in the middle.

[0028] Figure 12 It is a structural diagram of the material taking mechanism of an embodiment of the automatic punching system of the present invention.

[0029] Figure 13 This is a structural diagram of the material taking component from the first perspective of an embodiment of the automatic punching system of the present invention.

[0030] Figure 14 This is a structural diagram of the material taking component from a second perspective of an embodiment of the automatic punching system of the present invention.

[0031] Figure 15 It is a structural diagram of the automatic punching system embodiment of the present invention when the material is being taken out by the material taking part.

[0032] Figure 16 This is a structural diagram of an automatic punching system embodiment of the present invention in which the material picking piece is rotated 90 degrees.

[0033] Figure 17 It is a structural diagram of the material picking part of the automatic punching system embodiment of the present invention.

[0034] Figure 18 It is a structural diagram of the swing member of an embodiment of the automatic punching system of the present invention.

[0035] Figure 19 It is a structural diagram of the material picking components and products when picking up materials in an embodiment of the automatic punching system of the present invention.

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0037] See also Figure 1The material strip 1 includes two connecting strips 11 and a plurality of products. The products are evenly spaced and arranged between the two connecting strips 11 along their extension direction. The connecting strips 11 are provided with a plurality of second positioning holes 13 evenly spaced along their own extension direction. The products include a metal part 12 and a plastic part 10. The plastic part 10 is positioned in the middle of the metal part 12. The metal part 12 has ears and third positioning holes 14 on both sides. The third positioning hole 14 is located in the middle of the ears. The ears and the connecting strips 11 form a blanking area. This embodiment of the present invention is used to separate the products from the two connecting strips 11 and remove the products from the blanking area.

[0038] Reverse self-positioning punching die device embodiment

[0039] See also Figures 2 to 7 The punching die 3 includes a fixed base, a punching drive 32, a first lifting base 33, a second lifting base 34, a lower die base 35, a first bottom die 36, a second bottom die 37, and eight punches 38. The fixed base includes a bottom plate 311, an upper die base 312, and two side plates 313. The bottom 311 is connected to the bottom of the two side plates 313, and the upper die base 312 is connected to the top of the two side plates 313. The bottom plate 311 and the upper die base 312 are arranged parallel to each other. The punching drive 32 is mounted on the bottom plate 311. The first lifting base 33, the second lifting base 34, the lower die base 35, and the upper die base 312 are arranged in order from bottom to top.

[0040] The upper die base 312 is provided with a first avoidance hole 314 and eight punch mounting slots 315. The first avoidance hole 314 is arranged in a rectangular shape. The eight punch mounting slots 315 are symmetrically arranged on the long sides of the first avoidance hole 314. The upper portion of the punch 38 is located within the punch mounting slots 315, while the lower portion of the punch 38 protrudes toward the center of the first avoidance hole 314 and extends toward the lower die base 35. A receiving space 316 is formed between the punches 38 on both sides, facilitating the removal mechanism 4 to remove the product upward from between the punches 38.

[0041] The lower die base 35 is provided with a second bypass hole 351 and two first upper clamping plates 352. The two first upper clamping plates 352 overlap the left and right sides of the second bypass hole 351. A first trough 5 is formed between the first upper clamping plates 352 and the lower die base 35. The first trough 5 is located above the second bypass hole 351 and is connected to the second bypass hole 351. The second bypass hole 351 is arranged opposite and connected to the accommodating space 316. The first trough 5 extends through the lower die base 35 along its own extension direction, facilitating the feeding and discharge of waste materials from the first trough 5. The material strip 1 is located in the first trough 5 and can move along its extension direction. The first upper clamping plates 352 are provided with multiple first positioning holes 353 evenly spaced along the direction of movement of the material strip. The first positioning holes 353 are connected to the first trough 5.

[0042] The bottom of the second bottom mold 37 is mounted on the second lifting base 34. The upper portion of the second bottom mold 37 extends vertically within the first trough 5 and is positioned below the material strip 1. Eight second push rods 371 are mounted on the top wall of the second bottom mold 37. These eight push rods 371 are symmetrically arranged in two groups on the left and right sides of the second bottom mold. The second push rods 371 are located directly below the first positioning holes 353, ensuring a clearance fit within the first positioning holes 353.

[0043] The bottom of the first bottom die 36 is mounted on the first lifting platform 33. The upper portion of the first bottom die 36 extends vertically through the second bottom die 37, inserting vertically into the first trough 5 and positioned below the material strip 1. The first bottom die 36 can move vertically relative to the second bottom die 37. The top wall of the first bottom die 36 is higher than the top wall of the second bottom die 37. Eight cutting edges 361 and eight first ejector pins 362 are provided on the top wall of the first bottom die 36. The cutting edges 361 are located on the outer periphery of the first ejector pins 362 and on the left and right edges of the first bottom die 36. The cutting edges 361 are positioned between the first ejector pins 362 and the second ejector pins 371. The cutting edges 361 are arranged vertically opposite the area to be punched in the product. The cutting edges 361 cooperate with the punch 38 in a punching manner. This means that the punching surface of the punch 38 and the cutting edges are arranged vertically and separated by a predetermined gap in the horizontal direction. When the cutting edges 361 move relative to the punch 38, the product is cut between the punch 38 and the cutting edges 361. The first push rod 362 is located directly below the third positioning hole 14 of the product and is used for clearance fit with the third positioning hole 14 .

[0044] A first preset distance separates the first lift base 33 from the second lift base 34, a second preset distance separates the second lift base 34 from the lower die base 35, and a third preset distance separates the lower die base 35 from the upper die base 312. The punching drive 32 is located below the first lift base 33 and is a pneumatic or hydraulic cylinder.

[0045] Before punching, the top of the second push rod 371 is higher than the top of the first push rod 362 .

[0046] During punching, the punching drive 32 drives the first lifting platform 33 upward by a first preset distance, causing the first bottom mold 36 to move toward the first trough 5, that is, toward the material strip 1. The first push rod 362 is located directly below the third positioning hole 14 of the product. At this time, the top of the first push rod 362 is higher than the top of the second push rod 371. The punching drive 32 continues to drive the first lifting platform 33 upward, and the first lifting platform 33 pushes the second lifting platform 34 upward by a second preset distance, causing the first and second bottom molds 36 and 37 to move synchronously toward the first trough 5. The first push rod 362 passes through the third positioning hole 14, and the second push rod 371 passes through the second positioning hole 13 of the connecting strip 11 and is inserted into the first positioning hole 353 of the first upper clamping plate 352. This simultaneously positions the product and the connecting strip 11 in the left-right direction, and creates a tension between the connecting strip 11 and the product metal component 12. Then the punching drive device 32 continues to drive the first lifting seat 33 to move upward, so that the second lifting seat 34 pushes the lower die base 35 to move toward the punch 38, so that the first material trough 5 and the material strip move toward the punch 38. The punch 38 is located between the second push rod 371 and the first push rod 362 and is infinitely close to the blade 361 and performs a punching action, so that the product and the connecting strip 11 are separated from the area to be punched.

[0047] Automatic punching system embodiment

[0048] See also Figure 8 The automatic punching and picking device includes a feeding mechanism 2, a punching die 3 and a picking mechanism 4. The feeding mechanism 2 is located on the first side of the punching die 3 and is used to feed the punching die 3. A waste discharge component is provided on the second side of the punching die 3. The waste discharge component is on the same straight line as the feeding mechanism 2 and is used to discharge the connecting strip 11; the picking mechanism 4 is located on the upper part of the punching die 3 and is used to take out the product from above the punching die 3.

[0049] See also Figures 9 to 11 The feeding mechanism 2 includes a feed mounting base 21, a feed drive motor 22, two feed gears 23, and two second upper clamping plates 24. The two second upper clamping plates 24 are arranged parallel to each other on either side of the top wall of the feed mounting base 21, with a predetermined width separating the two second upper clamping plates 24. The feed mounting base 21 is fixedly connected to the lower die base 35, allowing the feed mounting base to move up and down with the lower die base 35. A second trough 6 is formed between the second upper clamping plates 24 and the feed mounting base 21. The second trough 6 extends toward the punching die 3 and communicates with the first trough 5. The connecting strip 11 of the material strip 1 is located within the second trough 6, and the product is located between the two second upper clamping plates 24.

[0050] The feed drive motor 22 is a servo motor and is horizontally mounted on the side wall of the feed mounting base 21. Two paddle gears 23 are mounted on the rotating shaft 471 of the feed drive motor 22 and are located below the top wall of the feed mounting base 21. A receiving groove 211 is provided through the top wall of the feed mounting base 21. The receiving groove 211 is connected to the second feed trough 6 from top to bottom. The upper portion of the paddle gear 23 is located within the receiving groove 211. A plurality of teeth 231 are evenly spaced around the circumference of the paddle gear 23. The feed trough teeth 231 are inserted into the second positioning holes 13 of the connecting bar 11. The distance between two adjacent second positioning holes 13 is equal to the tooth pitch of the paddle gear 23. The two paddle gears 23 are respectively connected to the corresponding connecting bar 11, and the rotation direction of the paddle gear 23 is tangential to the feeding direction of the second feed trough 6. When the feeding drive motor 22 drives the two prying gears 23 to rotate synchronously in the same direction, the prying gears 23 drive the material strip 1 to move along the extension direction of the second material trough 6 to achieve automatic feeding of the punching and cutting die 3 .

[0051] See also Figure 12 , and combined with Figure 8 The material picking mechanism 4 includes a frame 401, a linear slide module 402, a translation drive assembly and a material picking assembly. The frame 401 is located on the second side of the punching mold 3, the linear slide module 402 is located on the frame 401, and the material picking assembly is arranged on the linear slide module 402. The translation drive assembly drives the material picking assembly to move along the extension direction of the linear slide module 402, and the extension direction of the linear slide module 402 is perpendicular to the feeding direction.

[0052] See also Figures 13 to 16 The retrieving assembly includes a retrieving fixed base 41, a retrieving mounting base 42, a retrieving lifting drive assembly 43, a toggle member 44, a toggle drive assembly 45, four swing members 46, and four retrieving members 47. The retrieving fixed base 41 is connected to the linear slide module 402. The retrieving lifting drive assembly 43, which is configured as a pneumatic cylinder, drives the retrieving mounting base 42 to move vertically on the retrieving fixed base 41. Hydraulic buffer assemblies 48 are installed on the upper and lower sides of the retrieving fixed base 41. The retrieving mounting base 42 is equipped with a stopper 411, which moves up and down between the two hydraulic buffer assemblies 48.

[0053] The retrieving mounting base 42 includes a first arm 421 and a second arm 422, with the first arm 421 being perpendicular to the second arm 422. A retrieving lift drive assembly 43 is connected to the top wall of the first arm 421. A toggle member 44 is slidably mounted on the sidewalls of the first arm 421 along the feeding direction. Baffles 423 are provided on both sides of the first arm 421 to abut against the ends of the toggle member 44, preventing it from disengaging from the first arm 421.

[0054] The toggle member 44 includes a first connecting plate 441 and a second connecting plate 442. The first connecting plate 441 is perpendicular to the second connecting plate 442 and is slidably connected to the first support arm 421. Four parallel connecting sliding holes 443 are provided on the second connecting plate 442. These four connecting sliding holes 443 are evenly spaced along the extension direction of the toggle member 44. The connecting sliding holes 443 are preferably oval holes, with their length perpendicular to the feeding direction. A toggle drive assembly 45 is located on the sidewall of the first support arm 421 and drives the toggle member 44 to move linearly along the feeding direction.

[0055] The second arm 422 is provided with four sleeves 424 along the feeding direction. The picker 47 includes a rotating shaft 471 and a pick head 472. The pick head 472 is a rectangular parallelepiped structure. The width and length of the pick head 472 are both smaller than the width of the accommodating space 316, allowing the pick head 472 to pass through the accommodating space 316 between the punches 38 on both sides and be inserted into the first trough 5. The rotating shaft 471 passes through the sleeves 424 and is connected to the pick head 472 located below the second arm 422. The rotating shaft 471 is rotatably connected to the sleeve 424. A spring 473 elastically contacts the pick head 472 and the bottom wall of the sleeve 424.

[0056] See also Figure 17 A positioning groove 474 and four air suction holes 475 are provided on the bottom wall of the material taking head 472. The air suction holes 475 are located on the outer periphery of the positioning groove 474 and placed between two positioning grooves 474. The air suction holes 475 are connected to the vacuum generator.

[0057] See also Figure 18 The swing member 46 is connected between the material taking member 47 and the toggle member 44. The swing member 46 includes a first crank arm 461, a second crank arm 462 and a toggle column 463. The first crank arm 461 is perpendicular to the second crank arm 462.

[0058] like Figure 15 and Figure 16 As shown, the first crank arm 461 is fixed to the rotating shaft 471, and the toggle post 463 is located on the second crank arm 462 and is perpendicular to the top wall of the second crank arm 462. The toggle post 463 can move within the connecting slide hole 443. In the initial state, the toggle post 463 is located at the first end of the connecting slide hole 443. At this time, the length direction of the material picking head 472 is perpendicular to the feeding direction. The material picking head 472 is inserted into the first material trough 5 to pick up materials. When the toggle drive assembly 45 drives the toggle member 44 to move linearly in the opposite direction of the feeding direction, the toggle post 463 moves relative to the toggle member 44 to the second end of the connecting slide hole 443, causing the swing member 46 and the material picking member 47 to rotate 90 degrees counterclockwise together. At this time, the length direction of the material picking head 472 is parallel to the feeding direction, and the product direction is reversed by 90 degrees.

[0059] See also Figure 19The picking head 472 is inserted up and down in the first trough 5 and is located directly above the first bottom mold 36. When the picking part 47 moves downward, the positioning groove 474 and the first push rod 362 are in clearance, which is used to achieve the relative positioning of the picking head 472 and the product metal part 12. At this time, the spring 473 is squeezed and compressed, so that the bottom wall of the picking head 472 is tightly fitted with the surface of the product metal part 12. At this time, the vacuum generator can be started to form a vacuum environment between the suction hole 475 and the metal part 12 to suck the product. At this time, the picking drive assembly drives the picking mounting seat 42 to move upward, thereby driving the picking head 472 and the product to rise together. After the product leaves the punching die 3, the toggle drive assembly 45 drives the toggle member 44 to move linearly in the opposite direction of the feeding direction, so that the direction of the product can be adjusted, providing convenience for the next process.

[0060] The above embodiments are merely preferred embodiments of the present invention. In actual applications, the punching die can be adjusted. For example, the punching die can be equipped with more than eight punches, and correspondingly, the first base die can be equipped with blades that correspond one-to-one with the punches. This allows the punching die to punch multiple products simultaneously, thereby improving production efficiency. For another example, the punching die can be configured with a single-sided punch to punch a strip of material connected to a single-sided connecting strip. In actual applications, the picker assembly can also be adjusted. For example, the toggle member in the picker assembly can be moved along the feeding direction to cause the picker to rotate 90°.

Claims

1. A reverse self-positioning punching die, characterized in that: include: A lower die base, wherein the lower die base is provided with a first material trough; a first bottom mold, wherein a first ejector rod and a knife edge are provided on a top wall of the first bottom mold, and the knife edge is located below the first trough; a second bottom mold, wherein a second ejector rod is provided on a top wall of the second bottom mold, and the knife edge is located between the first ejector rod and the second ejector rod; A plurality of punches, each of which is located above the first trough, between the first ejector pin and the second ejector pin, and cooperates with the knife edge for punching; An upper die base, the upper die base being arranged above the lower die base, the upper die base being provided with a first avoidance hole, a plurality of punches being arranged on the hole walls on both sides of the first avoidance hole, and an accommodating space being formed between the punches on both sides; The punching drive device first drives the first bottom die and the second bottom die to move toward the first material trough, and then the punching drive device drives the lower die base, the first bottom die and the second bottom die to move toward the punch.

2. The punching die according to claim 1, wherein: The punching die further includes a first lifting seat, a second lifting seat, an elastic member, and an upper die seat. The first lifting seat, the second lifting seat, the lower die seat, and the upper die seat are sequentially arranged from bottom to top. The first lifting seat and the second lifting seat are separated by a first preset distance, the second lifting seat and the lower die seat are separated by a second preset distance, and the lower die seat and the upper die seat are separated by a third preset distance. The elastic member elastically abuts between the lower die seat and the upper die seat. The punching drive device drives the first lifting seat to move toward the second lifting seat, the first lifting seat pushes the second lifting seat to move toward the lower die seat, and the second lifting seat pushes the lower die seat to move toward the upper die seat.

3. The punching die according to claim 2, wherein: The lower portion of the second bottom mold is arranged on the second lifting seat, and the upper portion of the second bottom mold is inserted into the lower mold seat; The lower part of the first bottom mold is arranged on the first lifting seat, the upper part of the first bottom mold passes through the second lifting seat and is inserted into the second bottom mold, and the first bottom mold can move up and down relative to the second bottom mold.

4. The punching die according to claim 2, wherein: The upper die base is provided with a first avoidance hole and a punch mounting groove, the punch mounting groove is located on the hole wall of the first avoidance hole, the upper part of the punch is located in the punch mounting groove, and the lower part of the punch extends between the first push rod and the second push rod.

5. The punching die according to any one of claims 1 to 4, characterized in that: The top wall of the first bottom mold is higher than the top wall of the second bottom mold.

6. The punching die according to any one of claims 1 to 4, characterized in that: The lower die base is provided with a first upper clamping plate, and the first material trough is formed between the first upper clamping plate and the lower die base; A first positioning hole is provided on the first upper clamping plate, and the second ejector rod passes through the first material trough and is inserted into the first positioning hole.

7. An automatic punching system, characterized in that: It includes a feeding mechanism, a punching die and a material picking mechanism, the punching die is the punching die according to any one of claims 1 to 6 above, the feeding mechanism is arranged on the first side of the punching die, the material picking mechanism is arranged on the upper part of the punching die, and the material picking mechanism includes a material picking head, which can pass through the accommodating space and be inserted into the first material trough.

8. The automatic punching system according to claim 7, characterized in that: The feeding mechanism includes a feeding drive motor, a prying gear and a feeding mounting seat. The feeding mounting seat is provided with a second material trough along the feeding direction. The second material trough is connected to the first material trough. The teeth of the prying gear are located in the second material trough. The feeding drive motor drives the prying gear to rotate, and the rotation direction of the prying gear is tangent to the feeding direction.

9. The automatic punching system according to claim 8, characterized in that: The feeding mounting seat is connected to the lower die seat and can move up and down with the lower die seat.

10. The automatic punching system according to claim 8 or 9, characterized in that: The number of the paddle gears is set to two, the two paddle gears are arranged in parallel and located on both sides of the second material trough, and the two paddle gears rotate synchronously.

Images