Continuous stamping punching die for L-shaped plate

Abstract

The invention relates to a continuous stamping punching die for an L-shaped plate, and belongs to the technical field of hardware machining equipment.The continuous stamping punching die comprises a workbench, a bottom die used for bearing a metal plate is arranged on the workbench, an upper die is arranged on the workbench in a sliding mode, and the upper die is located above the bottom die and slides towards the bottom die; a drill rod is arranged on the face, facing the bottom die, of the upper die, and a through hole allowing the drill rod to enter is formed in the bottom die. The upper die is provided with a stamping block, the bottom die is provided with a bearing table, the through hole is formed in the bearing table, the stamping block is located on one side of the bearing table, and the stamping block makes contact with the side wall, close to each other, of the bearing table; in the conveying direction of the metal plate, the upper die is provided with a bending groove, the bending groove is located on one side of the stamping block, and the bottom die is provided with a bending part matched with the bending groove in radian. The L-shaped plate machining device has the effect of improving the machining efficiency of the L-shaped plate.

Description

Technical Field

[0001] The present application relates to the technical field of hardware processing equipment, and in particular to a continuous punching die for L-shaped plates. Background Art

[0002] Hardware refers to gold, silver, copper, iron, tin, and metal in general. Today, hardware is often used as a general term for metal or copper and iron products. Traditional hardware products are also called "small hardware". It refers to various metal devices made of iron, steel, aluminum and other metals through physical processing such as forging, rolling, and cutting.

[0003] L-shaped plate is a plate-like part in hardware, usually used for connecting plate-like and block-like objects. L-shaped plate is usually made of a metal plate of a certain width, which is cut by punching, then punched (bolt connection holes), and then bent (bent to the required angle). The equipment used in the above process is a punching machine, a punching machine, and a bending machine.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: the production process of the L-shaped plate uses a large number of devices, resulting in a relatively redundant production process, which leads to a relatively general production efficiency of the L-shaped plate. Summary of the invention

[0005] In order to improve the processing efficiency of L-shaped plates, the present application provides a continuous stamping and punching die for L-shaped plates.

[0006] The continuous punching die for L-shaped plates provided in the present application adopts the following technical solution: A continuous stamping and punching die for L-shaped plates, comprising a workbench, wherein a bottom die for receiving a metal plate is arranged on the workbench, an upper die is slidably arranged on the workbench, the upper die is located above the bottom die and slides toward the bottom die; a drill rod is arranged on the surface of the upper die facing the bottom die, and a through hole for the drill rod to enter is opened on the bottom die; a stamping block is arranged on the upper die, a bearing platform is arranged on the bottom die, the through hole is opened on the bearing platform, the stamping block is located on one side of the bearing platform, and the side walls of the stamping block and the bearing platform that are close to each other are in contact with each other; along the conveying direction of the metal plate, the upper die is provided with a bending groove, the bending groove is located on one side of the stamping block, and the bottom die is provided with a bending portion that matches the curvature of the bending groove.

[0007] By adopting the above technical solution, when processing the L-shaped plate, the metal plate is placed on the supporting platform, and then the metal plate is pushed to the bottom of the drill rod, and then the upper mold slides toward the bottom mold, and during the sliding process of the upper mold, the drill rod is driven to slide toward the metal plate, and a hole is formed on the metal plate; then the metal plate slides a certain distance according to the overall length of the L-shaped plate, at this time, the sliding of the upper mold drives the stamping block to slide, and the stamping block slides and abuts against the metal plate to punch and break the metal plate; during the stamping process of the metal plate, the bending part of the metal plate is located on the bending part, and during the sliding process of the upper mold, the bending groove is driven to slide toward the bending part and clamped on the bending part to complete the bending operation of the L-shaped plate; in the above process, the punching, stamping and bending of the metal plate are all completed at the same time, thereby improving the processing efficiency of the L-shaped plate.

[0008] Optionally, a mounting plate is provided on the surface of the upper mold close to the bottom mold, the drill rod and the punch block are fixedly provided on the mounting plate, a pre-pressing plate is slidingly provided on the surface of the mounting plate facing the bottom mold, the sliding direction of the pre-pressing plate is parallel to the sliding direction of the upper mold, the drill rod and the punch block slide through the pre-pressing plate, a first spring is provided between the mounting plate and the pre-pressing plate, one end of the first spring is fixedly provided on the mounting plate, and the other end is fixedly provided on the pre-pressing plate.

[0009] By adopting the above technical scheme, under the action of the first spring, the mounting plate and the pre-stressing plate are connected as one, and when the upper mold slides toward the bottom mold, the pre-stressing plate first abuts against the metal plate to limit the sliding of the metal plate, thereby reducing the possibility of the metal plate being offset during the drilling operation and improving the operation quality of the metal plate; when the pre-stressing plate abuts against the metal plate, the mounting plate slides toward the pre-stressing plate, and the mounting plate drives the drill rod to slide toward the metal plate and perform a hole-making operation on the metal plate.

[0010] Optionally, a guide rod is arranged between the upper mold and the supporting platform, and the guide rod is slidably passed through the upper mold. The length direction and sliding direction of the guide rod are parallel to the sliding direction of the upper mold, and the mounting plate and the pre-pressing plate are both provided with a circular hole for the guide rod to slide through.

[0011] By adopting the above technical solution, under the action of the guide rod, the sliding directions of the upper die, the mounting plate and the pre-pressing plate are guided, so as to improve the processing accuracy of the L-shaped plate.

[0012] Optionally, a plurality of positioning columns are rotatably arranged on the support platform, two of the positioning columns form a group and are respectively located on both sides of the metal plate, the positioning columns abut against both sides of the metal plate, the rotation axis of the positioning columns is perpendicular to the support surface of the support platform, and the pre-pressing plate is provided with an entry hole for the positioning columns to enter.

[0013] By adopting the above technical solution, the metal plate is located between adjacent positioning columns, and the sliding direction of the metal plate is limited, which facilitates the metal plate to slide along the designed path to the bottom of the drill rod, the stamping block and the stamping groove, thereby improving the processing accuracy of the L-shaped plate; the positioning column is rotatably arranged on the bearing platform, and the positioning column is driven by the metal plate, and the positioning column rotates on the bearing platform, thereby reducing the friction between the metal plate and the positioning column, and facilitating the metal plate to slide to the required position.

[0014] Optionally, an air pipe is provided on the bottom mold, and the air outlet end of the air pipe is located on one side of the bending part and facing the L-shaped plate after stamping. The other end of the air pipe is connected to an external air supply device, and the air supply device inflates and sprays air through the air pipe to move the stamped L-shaped plate out of the bending part.

[0015] By adopting the above technical solution, after the bending groove bends the L-shaped plate, the air supply device supplies air to the air pipe and sprays air from the air outlet end of the air pipe. The sprayed air flow impacts the L-shaped plate, and the L-shaped plate is removed from the bending part, which is convenient for the processing of the next L-shaped plate. At the same time, there is no need to manually remove the processed L-shaped plate, which improves the processing efficiency of the L-shaped plate.

[0016] Optionally, a transition plate is provided on the bottom mold, and both sides of the transition plate are bent in a direction away from the ground to form a transition groove. The length direction of the transition plate is parallel to the direction of airflow ejected from the air pipe, and a collection frame is provided at the end of the transition plate away from the bottom mold, and the L-shaped plate passes through the transition plate and enters the collection frame.

[0017] By adopting the above technical solution, the L-shaped plate moved out from the bending part enters the collection frame through the transition plate, so as to collect and organize the L-shaped plates in a centralized manner; under the action of the transition groove, the possibility of the L-shaped plate falling from the transition plate is reduced.

[0018] Optionally, a conveyor belt is arranged around the transition plate, and the conveyor belt is wound around the bottom surface of the transition groove. Guide rollers are arranged at both ends of the transition plate, and the conveyor belt is wound around the guide rollers. The stamping and punching die also includes a driving member for driving the guide rollers to rotate and drive the conveyor belt to run.

[0019] By adopting the above technical solution, the L-shaped plate driven by the jet airflow falls onto the conveyor belt, and the conveyor belt is driven to transport under the action of the driving member, so as to drive the L-shaped plate to be transported from the transition plate to the collection frame; at the same time, the conveyor belt is located above the receiving surface of the transition plate, and when the L-shaped plate falls onto the conveyor belt, the conveyor belt has a certain buffering effect on the L-shaped plate, thereby reducing the possibility of damage to the L-shaped plate.

[0020] Optionally, the driving member includes a rack fixedly arranged on the edge of the upper mold, a gear meshing with the rack is arranged on the bottom mold, the rotation axis of the gear is parallel to the length direction of the guide roller, a driving rod is arranged on the bottom mold, and the driving rod is coaxially arranged on the gear, the driving rod includes a first rod body arranged on the gear and a second rod body rotatably arranged on the first rod body, a conveyor belt is arranged between the second rod body and the guide roller, the second rod body is inserted into the first rod body, a plurality of active blocks are arranged in a ring shape, the cross-section of the active block is a right-angled triangle, a passive block is slidably arranged on the second rod body, the sliding direction of the passive block is perpendicular to the axial direction of the second rod body, the cross-section of the passive block is a right-angled triangle, when the right-angled sides of the passive block and the active block abut each other, the first rod body drives the second rod body to rotate, when the passive block and the inclined surface of the active block abut each other, the active block drives the passive block to slide toward the second rod body, and the driving member also includes an elastic member for driving the passive block to slide and abut against the active block.

[0021] By adopting the above technical scheme, during the reciprocating sliding process of the upper mold, under the action of the rack, the gear is driven to rotate, the gear rotation drives the first rod body to rotate, the first rod body rotation drives the active block to rotate, when the right-angle surfaces of the active block and the passive block abut against each other, the first rod body rotation drives the second rod body to rotate, the second rod body rotation drives the conveyor belt to run, and then drives the guide roller to rotate, the guide roller rotation drives the conveyor belt to run, the operation is simple and convenient; when the gear rotates in the opposite direction, the inclined surfaces of the passive block and the active block abut against each other, the passive block slides toward the second rod body, the active block and the passive block separate from each other, so that the conveyor belt is transported in one direction, and it is convenient to transport the L-shaped plate to the conveying frame; at the same time, the conveyor belt feeds materials in gaps, which is convenient for the staff to arrange and sort the L-shaped plates in the collection frame.

[0022] Optionally, the elastic member includes a second spring disposed in the second rod body, one end of the second spring is disposed on the passive block, and the other end of the second spring is disposed on the second rod body.

[0023] By adopting the above technical solution, when the passive block moves toward the second rod body, the second spring is in a compressed state, and the second spring drives the passive block to have a tendency to slide toward the active block, so that when the gear rotation direction changes, the right-angle surfaces of the active block and the passive block abut against each other.

[0024] Optionally, a branch pipe is provided on the air pipe, the branch pipe is connected to the air pipe, and an air outlet of the branch pipe is arranged directly opposite to the supporting platform.

[0025] By adopting the above technical solution, under the action of the branch pipe, after the upper mold is separated from the supporting platform, the ejected airflow flushes and removes the metal debris on the supporting platform, reducing the influence of the metal debris on the metal plate processing.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When processing the L-shaped plate, place the metal plate on the carrier, push the metal plate to the bottom of the drill rod, and then slide the upper die toward the bottom die. During the sliding process of the upper die, the drill rod is driven to slide toward the metal plate, and a hole is formed on the metal plate; then the metal plate slides a certain distance according to the overall length of the L-shaped plate, at this time, the sliding of the upper die drives the sliding of the punching block, and the punching block slides against the metal plate to punch and break the metal plate; during the punching process of the metal plate, the bending portion of the metal plate is located on the bending portion, and during the sliding process of the upper die, the bending groove is driven to slide toward the bending portion and clamped on the bending portion to complete the bending operation of the L-shaped plate; in the above process, the punching, punching and bending of the metal plate are all completed at the same time, thereby improving the processing efficiency of the L-shaped plate; 2. The conveyor belt feeds materials in the gap, which makes it easier for the staff to arrange the L-shaped plates in the collection frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the structure of an L-shaped plate in an embodiment of the present application; Figure 2 It is a schematic diagram of the overall structure of a continuous punching die for an L-shaped plate according to an embodiment of the present application; Figure 3 It is an exploded schematic diagram of a continuous punching die for an L-shaped plate according to an embodiment of the present application; Figure 4 It is a side view of a continuous punching die for an L-shaped plate according to an embodiment of the present application; Figure 5 It is a structural schematic diagram of a driving rod in a continuous punching die for an L-shaped plate according to an embodiment of the present application; Figure 6 It is a cross-sectional view of a driving rod in a continuous punching die for an L-shaped plate according to an embodiment of the present application.

[0028] Description of reference numerals: 1. workbench; 2. bottom die; 3. upper die; 4. drill rod; 5. punch block; 6. bearing platform; 7. bending groove; 8. bending part; 9. mounting plate; 10. pre-pressing plate; 11. guide rod; 12. positioning column; 13. air pipe; 14. branch pipe; 15. transition plate; 16. conveyor belt; 17. guide roller; 18, driving member; 181, rack; 182, gear; 183, first rod; 184, second rod; 185, conveyor belt; 186, active block; 187, passive block; 188, second spring; 19. L-shaped board. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-6 This application is described in further detail.

[0030] The present application embodiment discloses a continuous punching die for an L-shaped plate. Figure 1 and Figure 2 The continuous stamping die includes a workbench 1, on which a bottom die 2 for receiving a metal plate is arranged, the width of the metal plate is equal to the width of the L-shaped plate 19, and an upper die 3 is slidably arranged on the workbench 1. In the embodiment of the present application, a hydraulic cylinder is arranged on the workbench 1, and the upper die 3 is fixedly arranged on the output shaft of the hydraulic cylinder. The upper die 3 is located above the bottom die 2 and slides toward the bottom die 2; Reference Figure 2 and Figure 3 A drill rod 4 is fixedly arranged on the surface of the upper mold 3 facing the bottom mold 2, and a through hole for the drill rod 4 to enter is opened on the bottom mold 2. Furthermore, the through hole passes through the base, so that waste generated by the drilling operation can be removed from the bottom mold 2; Reference Figure 2 and Figure 3 The upper die 3 is provided with a punching block 5, the punching block 5 is a rectangular parallelepiped, the bottom die 2 is provided with a bearing platform 6, the through hole is opened on the bearing platform 6, the punching block 5 is located on one side of the bearing platform 6, and the side walls of the punching block 5 and the bearing platform 6 close to each other are in contact with each other; Reference Figure 2 and Figure 3 Along the conveying direction of the metal plate, the upper die 3 is fixedly provided with a bending groove 7, the bending groove 7 is located on one side of the punching block 5, and the bottom die 2 is fixedly provided with a bending portion 8 that matches the curvature of the bending groove 7.

[0031] When processing the L-shaped plate 19, the metal plate is first placed on the supporting platform 6, and then the metal plate is pushed to move toward the bending part 8. When the metal plate is transported to the bottom of the drill rod 4, the upper mold 3 drives the drill rod 4 to slide and drills holes in the metal plate; then, the drilled metal plate is transported to the bottom of the punching block 5. At this time, the upper mold 3 drives the punching block 5 to slide to punch the metal plate; at the same time, the bending groove 7 slides toward the bending part 8 to bend the metal plate; the above steps are all completed when the upper mold 3 slides toward the bottom mold 2 at the same time, reducing the processes of metal plate transfer and installation, thereby improving the processing efficiency of the L-shaped plate 19.

[0032] Reference Figure 2 and Figure 3In order to reduce the possibility of the L-shaped plate 19 being offset during the drilling and punching process, a mounting plate 9 is fixedly provided on the surface of the upper die 3 close to the bottom die 2, the drill rod 4 and the punching block 5 are fixedly provided on the mounting plate 9, a pre-pressing plate 10 is slidably provided on the surface of the mounting plate 9 facing the bottom die 2, the sliding direction of the pre-pressing plate 10 is parallel to the sliding direction of the upper die 3, the drill rod 4 and the punching block 5 both slide through the pre-pressing plate 10, a first spring is provided between the mounting plate 9 and the pre-pressing plate 10, a plurality of first springs are provided, the length directions of the plurality of first springs are parallel to each other, one end of the first spring is fixedly provided on the mounting plate 9, and the other end is fixedly provided on the pre-pressing plate 10. Under the connecting action of the first spring, the mounting plate 9 and the pre-pressing plate 10 have the same movement tendency; further, when the pre-pressing plate 10 abuts against the metal plate, the metal plate is pre-pressed, thereby reducing the possibility of the metal plate being offset during operation.

[0033] Reference Figure 2 and Figure 3 In order to reduce the possibility of deviation of the pre-pressing plate 10 during the pre-pressing process, a guide rod 11 is arranged between the upper mold 3 and the bearing platform 6. The guide rod 11 is slidably penetrated on the upper mold 3. The guide rod 11 is fixedly arranged on the bearing platform 6. The length direction and sliding direction of the guide rod 11 are parallel to the sliding direction of the upper mold 3. The mounting plate 9 and the pre-pressing plate 10 are both provided with round holes for the guide rod 11 to slide through. Under the action of the guide rod 11, the sliding direction of the pre-pressing plate 10 is limited, thereby improving the pre-pressing effect on the metal plate.

[0034] Reference Figure 2 and Figure 3 In order to reduce the possibility of metal plate deviation during drilling and stamping, a plurality of positioning columns 12 are rotatably arranged on the carrier platform 6. The length direction of the positioning columns 12 is perpendicular to the bearing surface of the carrier platform 6. Two positioning columns 12 form a group and are respectively located on both sides of the metal plate. Multiple groups of positioning columns 12 are arranged along the conveying direction of the metal plate. The positioning columns 12 abut against both sides of the metal plate. The rotation axis of the positioning columns 12 is perpendicular to the bearing surface of the carrier platform 6. An entry hole for the positioning columns 12 to enter is opened on the pre-pressing plate 10. The metal plate is clamped between adjacent positioning columns 12 to limit the conveying path of the metal plate, thereby reducing the possibility of metal plate deviation.

[0035] Reference Figure 2In order to facilitate the removal of the bent L-shaped plate 19, an air pipe 13 is fixedly arranged on the bottom mold 2. The air outlet end of the air pipe 13 is located on one side of the bending portion 8 and is directly opposite to the L-shaped plate 19 after stamping. The other end of the air pipe 13 is connected to an external air supply device. In the embodiment of the present application, the air supply device is an air compressor. The air pipe 13 is connected to the air outlet end of the air compressor. The air supply device inflates and ejects air through the air pipe 13 to move the stamped L-shaped plate 19 out of the bending portion 8. After the L-shaped plate 19 is bent, the air compressor ejects an airflow through the air outlet end of the air pipe 13 to move the L-shaped plate 19 out of the bending portion 8. The operation is simple and convenient.

[0036] Reference Figure 2 In order to remove the metal debris on the supporting platform 6 in time, a branch pipe 14 is provided on the air pipe 13, and the branch pipe 14 is connected to the air pipe 13, and the air outlet of the branch pipe 14 is arranged directly facing the supporting platform 6; the ejected air flow is ejected through the air outlet port of the branch pipe 14 to remove the metal debris on the supporting platform 6.

[0037] Reference Figure 4 In order to collect the L-shaped plate 19 removed from the bending portion 8, a transition plate 15 is provided on the bottom mold 2. The transition plate 15 is connected to the bottom mold 2. The length direction of the transition plate 15 is perpendicular to the conveying direction of the metal plate. Both sides of the transition plate 15 are bent in a direction away from the ground to form a transition groove. The length direction of the transition plate 15 is parallel to the direction of the airflow ejected from the air pipe 13. A collection frame is provided at the end of the transition plate 15 away from the bottom mold 2, and the L-shaped plate 19 passes through the transition plate 15 and enters the collection frame; the ejected airflow drives the L-shaped plate 19 to fall from the bending portion 8 and moves along the transition plate 15 to the collection frame.

[0038] Reference Figure 4 , some L-shaped plates 19 may be left on the transition plate 15 under the drive of the airflow; in order to collect the L-shaped plates 19 left on the transition plate 15, a conveyor belt 16 is arranged around the transition plate 15, and the conveyor belt 16 is wound around the bottom surface of the transition groove. Guide rollers 17 are rotatably arranged at both ends of the transition plate 15, and the length direction of the guide roller 17 is parallel to the conveying direction of the metal plate, and the conveyor belt 16 is wound around the guide roller 17; when the conveyor belt 16 runs, the L-shaped plates 19 left on the conveyor belt 16 are sent into the collection frame, so as to facilitate the staff to centrally organize and arrange the processed L-shaped plates 19.

[0039] Reference Figure 4 , Figure 5 and Figure 6In the embodiment of the present application, the punching die further includes a driving member 18 for driving the guide roller 17 to rotate and drive the conveyor belt 16 to run, the driving member 18 includes a rack 181 fixedly arranged on the edge of the upper die 3, the length direction of the rack 181 is parallel to the sliding direction of the upper die 3, and the bottom die 2 is provided with a gear 182 meshing with the rack 181, and the rotation axis of the gear 182 is parallel to the length direction of the guide roller 17; Reference Figure 4 , Figure 5 and Figure 6 A driving rod is provided on the bottom mold 2, and the driving rod is coaxially arranged on the gear 182. The driving rod includes a first rod body 183 arranged on the gear 182 and a second rod body 184 rotatably arranged on the first rod body 183. The first rod body 183 and the second rod body 184 are coaxially arranged. A conveyor belt 185 is provided between the second rod body 184 and the guide roller 17. The second rod body 184 is inserted into the first rod body 183. Reference Figure 4 , Figure 5 and Figure 6 , a plurality of active blocks 186 are arranged in a ring shape, the cross section of the active block 186 is a right triangle, and a passive block 187 is slidably arranged on the second rod body 184. Further, the passive block 187 is located between adjacent active blocks 186, the sliding direction of the passive block 187 is perpendicular to the axial direction of the second rod body 184, the cross section of the passive block 187 is a right triangle, when the right-angled sides of the passive block 187 and the active block 186 abut against each other, the first rod body 183 drives the second rod body 184 to rotate, and when the inclined surfaces of the passive block 187 and the active block 186 abut against each other, the active block 186 drives the passive block 187 to slide toward the inside of the second rod body 184, and the driving member 18 also includes an elastic member for driving the passive block 187 to slide and abut against the active block 186; Reference Figure 4 , Figure 5 and Figure 6 The elastic member includes a second spring 188 disposed in the second rod body 184 , one end of the second spring 188 is disposed on the passive block 187 , and the other end is disposed on the second rod body 184 .

[0040] During the sliding process of the upper mold 3, the upper mold 3 drives the rack 181 to slide, and the sliding of the rack 181 drives the gear 182 to rotate, and the rotation of the gear 182 drives the first rod body 183 to rotate, and the rotation of the first rod body 183 drives the active block 186 to rotate, and the rotation of the active block 186 drives the second rod body 184 to rotate, and the rotation of the second rod body 184 drives the conveyor belt 185 to run, and the operation of the conveyor belt 185 drives the guide roller 17 to rotate, and the rotation of the guide roller 17 drives the conveyor belt 16 to run, and then the L-shaped plate 19 is transported, and the operation is simple and convenient; at the same time, when the gear 182 rotates in the opposite direction, the rotation of the first rod body 183 cannot be transmitted to the second rod body 184, so that the conveyor belt 16 is in a stopped state. At this time, it is convenient for the staff to sort the L-shaped plates 19 in the collection frame, and then the conveyor belt 16 transports the L-shaped plates 19 to the collection frame. In the conveying gap of the conveyor belt 16, it is convenient for the staff to sort the L-shaped plates 19.

[0041] The implementation principle of a continuous punching die for an L-shaped plate 19 in the present application embodiment is as follows: When processing the L-shaped plate 19, the metal plate is first placed on the carrier 6, and then the metal plate is pushed to move toward the bending portion 8. When the metal plate is transported to the bottom of the drill rod 4, the upper die 3 drives the drill rod 4 to slide and drill holes on the metal plate; then, the drilled metal plate is transported to the bottom of the punching block 5, and at this time, the upper die 3 drives the punching block 5 to slide to punch the metal plate; at the same time, the bending groove 7 slides toward the bending portion 8 to bend the metal plate; After the L-shaped plate 19 is bent, the air compressor ejects airflow, which is ejected through the air outlet end of the air pipe 13, and the L-shaped plate 19 is removed from the bent portion 8 and falls onto the conveyor belt 16; During the sliding process of the upper mold 3, the upper mold 3 drives the rack 181 to slide, the sliding of the rack 181 drives the gear 182 to rotate, the rotation of the gear 182 drives the first rod 183 to rotate, the rotation of the first rod 183 drives the active block 186 to rotate, the rotation of the active block 186 drives the second rod 184 to rotate, the rotation of the second rod 184 drives the conveyor belt 185 to run, the operation of the conveyor belt 185 drives the guide roller 17 to rotate, the rotation of the guide roller 17 drives the conveyor belt 16 to run, and then the L-shaped plate 19 is transported.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A continuous punching die for L-shaped plates, characterized in that: The invention comprises a workbench (1), wherein a bottom die (2) for receiving a metal plate is arranged on the workbench (1), an upper die (3) is slidably arranged on the workbench (1), and the upper die (3) is located above the bottom die (2) and slides toward the bottom die (2); a drill rod (4) is arranged on the surface of the upper die (3) facing the bottom die (2), and a through hole for the drill rod (4) to enter is opened on the bottom die (2); the upper die (3) is provided with a punching block (5), and the bottom die (2) is provided with a punching block (5). A bearing platform (6) is arranged on the die (2), the through hole is opened on the bearing platform (6), the punching block (5) is located on one side of the bearing platform (6), and the side walls of the punching block (5) and the bearing platform (6) close to each other are in contact with each other; along the conveying direction of the metal plate, the upper die (3) is provided with a bending groove (7), the bending groove (7) is located on one side of the punching block (5), and the bottom die (2) is provided with a bending portion (8) adapted to the curvature of the bending groove (7).

2. A continuous punching die for L-shaped plates according to claim 1, characterized in that: A mounting plate (9) is arranged on the surface of the upper mold (3) close to the bottom mold (2); the drill rod (4) and the punching block (5) are both fixedly arranged on the mounting plate (9); a pre-pressing plate (10) is slidably arranged on the surface of the mounting plate (9) facing the bottom mold (2); the sliding direction of the pre-pressing plate (10) is parallel to the sliding direction of the upper mold (3); the drill rod (4) and the punching block (5) both slide through the pre-pressing plate (10); a first spring is arranged between the mounting plate (9) and the pre-pressing plate (10); one end of the first spring is fixedly arranged on the mounting plate (9), and the other end is fixedly arranged on the pre-pressing plate (10).

3. A continuous punching die for L-shaped plates according to claim 2, characterized in that: A guide rod (11) is arranged between the upper mold (3) and the supporting platform (6); the guide rod (11) is slidably inserted into the upper mold (3); the length direction and sliding direction of the guide rod (11) are parallel to the sliding direction of the upper mold (3); and the mounting plate (9) and the pre-pressing plate (10) are both provided with a circular hole for the guide rod (11) to slide through.

4. A continuous punching die for L-shaped plates according to claim 2, characterized in that: A plurality of positioning columns (12) are rotatably arranged on the bearing platform (6), two of the positioning columns (12) form a group and are respectively located on both sides of the metal plate, the positioning columns (12) abut against both sides of the metal plate, the rotation axis of the positioning columns (12) is perpendicular to the bearing surface of the bearing platform (6), and the pre-pressing plate (10) is provided with an entry hole for the positioning columns (12) to enter.

5. The continuous punching die for L-shaped plates according to claim 1, characterized in that: An air pipe (13) is provided on the bottom mold (2), an air outlet end of the air pipe (13) is located on one side of the bending portion (8) and directly faces the L-shaped plate (19) after stamping, and the other end of the air pipe (13) is connected to an external air supply device, and the air supply device injects air through the air pipe (13) to move the L-shaped plate (19) after stamping out of the bending portion (8).

6. A continuous punching die for L-shaped plates according to claim 5, characterized in that: A transition plate (15) is provided on the bottom mold (2), and both sides of the transition plate (15) are bent in a direction away from the ground to form a transition groove. The length direction of the transition plate (15) is parallel to the direction of the airflow ejected from the air pipe (13). A collection frame is provided at the end of the transition plate (15) away from the bottom mold (2), and the L-shaped plate (19) passes through the transition plate (15) and enters the collection frame.

7. A continuous punching die for L-shaped plates according to claim 6, characterized in that: A conveyor belt (16) is arranged around the transition plate (15), and the conveyor belt (16) is wound around the bottom surface of the transition groove. Guide rollers (17) are arranged at both ends of the transition plate (15), and the conveyor belt (16) is wound around the guide rollers (17). The punching die also includes a driving member (18) for driving the guide rollers (17) to rotate and drive the conveyor belt (16) to run.

8. A continuous punching die for L-shaped plates according to claim 7, characterized in that: The driving member (18) comprises a rack (181) fixedly arranged on the edge of the upper mold (3); a gear (182) meshing with the rack (181) is arranged on the bottom mold (2); the rotation axis of the gear (182) is parallel to the length direction of the guide roller (17); a driving rod is arranged on the bottom mold (2); the driving rod is coaxially arranged on the gear (182); the driving rod comprises a first rod body (183) arranged on the gear (182) and a second rod body (184) rotatably arranged on the first rod body (183); a conveyor belt (185) is arranged between the second rod body (184) and the guide roller (17); the second rod body (184) is inserted into the first rod body (183); a plurality of active blocks (186) are arranged in the first rod body (183); the plurality of active blocks (186) are arranged in the first rod body (183); The blocks (186) are arranged in a ring shape, the cross section of the active block (186) is a right triangle, a passive block (187) is slidably arranged on the second rod body (184), the sliding direction of the passive block (187) is perpendicular to the axial direction of the second rod body (184), the cross section of the passive block (187) is a right triangle, when the right-angled sides of the passive block (187) and the active block (186) abut against each other, the first rod body (183) drives the second rod body (184) to rotate, when the inclined surfaces of the passive block (187) and the active block (186) abut against each other, the active block (186) drives the passive block (187) to slide toward the inside of the second rod body (184), and the driving member (18) further includes an elastic member for driving the passive block (187) to slide and abut against the active block (186).

9. A continuous punching die for L-shaped plates according to claim 8, characterized in that: The elastic member comprises a second spring (188) arranged in the second rod body (184); one end of the second spring (188) is arranged on the passive block (187), and the other end is arranged on the second rod body (184).

10. A continuous punching die for L-shaped plates according to claim 5, characterized in that: The air pipe (13) is provided with a branch pipe (14), the branch pipe (14) is connected to the air pipe (13), and the air outlet of the branch pipe (14) is arranged directly opposite to the bearing platform (6).

Images