A punch press with automatic ejection

Abstract

The application discloses a kind of automatic demolding stamping equipment, belongs to stamping technical field, including machine body, rotatable forming die is installed on machine body and the driving die that can slide towards the direction of forming die, the side of forming die away from driving die is equipped with the feeding mechanism for pushing blank;Two opposite surfaces of forming die are both provided with fixing groove for fixing blank, the angle of forming die rotation is 90 degrees between two adjacent times of die closing;Driving die, forming die and top plate are in the same horizontal plane.The application does not need artificial manual feeding, can save feeding time and improve work efficiency, the blank will not fall during the rotating process of the moving die plate, the application can automatically complete the work of falling off, without manual material taking, can save unloading time, and work efficiency will be significantly improved.

Description

TECHNICAL FIELD

[0001] The application relates to automatic demolding stamping equipment and belongs to the technical field of stamping equipment. BACKGROUND

[0002] The stamping equipment is mainly used for processing plate materials. The application mainly aims at the forming work of the stamping equipment. The conventional stamping equipment comprises a moving die and a fixed die. Generally, a blank to be processed is fixed on the fixed die, and the blank is formed through stamping of the moving die. Manual operation is needed during feeding and discharging, and workers need to stay near the stamping machine for a long time, which occupies a large amount of material and human resources and is low in working efficiency. In order to improve the working efficiency of stamping work, the application provides automatic demolding stamping equipment. SUMMARY

[0003] In view of the problems of the prior art, the application provides automatic demolding stamping equipment, which can save installation time and improve working efficiency.

[0004] In order to achieve the above-mentioned purpose, the application adopts the following technical scheme: automatic demolding stamping equipment, comprising a machine body, wherein a rotatable forming die and a driving die capable of sliding towards the forming die are installed on the machine body, and an upper feeding mechanism for pushing a blank is arranged on the side of the forming die away from the driving die.

[0005] The forming die is in the shape of a cuboid with a square cross section, and a fixing groove for fixing the blank is arranged on each of the two opposite surfaces of the forming die. The angle of rotation of the forming die between two adjacent die closing processes is 90 degrees.

[0006] A moving top plate one is installed on the upper feeding mechanism and moves towards the inside of the forming die. When the top plate one slides towards the forming die, the blank is adsorbed on the side wall of the top plate one.

[0007] The driving die, the forming die and the top plate one are on the same horizontal plane.

[0008] Preferably, a letting-in groove for forming is arranged on each side of the forming die, the letting-in groove is in communication with the corresponding fixing groove, and the blank installed in the fixing groove is deformed during stamping and forming. A support body is slidably installed in the inside of the letting-in groove. The two support bodies are interconnected and are both installed in the inside of the forming die through a reset device.

[0009] Preferably, a sliding rod is installed on each of the two mutually symmetrical support bodies, an elastic body one is sleeved on the outside of the sliding rod, one end of the elastic body one is connected with the support body, and a gap is left between the two sliding rods in a natural state.

[0010] Preferably, the fixed groove has several air vents inside. When the mold 5 rotates and the fixed groove rotates to face downwards, the air vents will release air outwards.

[0011] Preferably, side plates are fixed on both sides of the machine body, and the two ends of the molding mold are rotatably mounted on the two side plates respectively. A horizontal pipe is opened inside the molding mold and passes through both ends of the molding mold. Several air outlets are connected to the horizontal pipe through inclined pipes. An air pipe is provided inside the side plate. When the fixing groove is rotated to face downward, the horizontal pipe is connected to the air pipe. One end of the air pipe extends out of the side plate and is connected to the blower installed on the machine body.

[0012] Preferably, a locking box and a support box are fixed to the two side plates respectively. An inner shaft is fixed inside the molding mold. End shaft one and end shaft two are fixedly installed at both ends of the inner shaft respectively. End shaft one is rotatably installed inside the locking box, and end shaft two is rotatably installed inside the support box. A motor for driving end shaft two to rotate is fixed outside the support box.

[0013] Preferably, the second end shaft is disc-shaped, and four planes are evenly distributed circumferentially on the outer ring surface of the second end shaft. Four positioning plates are connected to the inner wall of the support box through the second elastic body. The four positioning plates are evenly distributed axially inside the support box and are respectively pressed against the four planes. A card plate that can slide towards the first end shaft is installed inside the locking box. The card plate is provided with multiple protrusions, and the first end shaft is provided with slots corresponding to the protrusions. A hydraulic cylinder is fixed on the locking box for pushing the card plate to move.

[0014] Preferably, the feeding mechanism includes a discharge box, which is fixed to the machine body. The discharge box has an inlet trough and a discharge trough inside. A top plate is slidably installed inside the discharge trough. Several stacked billets are installed at the bottom of the inlet trough. A slidable top plate is provided on one side of the billet. A through groove is provided at the bottom of the inlet trough, which communicates with the discharge trough. A pressure plate is slidably installed inside the discharge box directly above the through groove. When the pressure plate slides downward, it pushes the billet at the end into the discharge trough.

[0015] Preferably, the discharge box is equipped with hydraulic cylinder three and hydraulic cylinder four. The output end of hydraulic cylinder three is fixedly connected to top plate one, and the output end of hydraulic cylinder four is fixed to top plate two. An elastic body one is sleeved on the output shaft of hydraulic cylinder three. One end of the elastic body one is connected to top plate two, and the other end is connected to the inside of the discharge box.

[0016] Compared with the prior art, the present invention opens fixing grooves on two opposite surfaces of the forming mold, and the two fixing grooves are alternately positioned. One side is used to install the blank and the other side is used to process the blank. In addition, a feeding mechanism and a discharging mechanism are set inside the machine body, so that manual feeding is not required, which can save feeding time and improve work efficiency.

[0017] This invention features a relief groove inside the forming mold, which connects to a fixed groove. During stamping, the forming protrusion on the drive mold engages in the relief groove, pushing the support body inside the groove to move. Two opposing supports are linked by a sliding rod. When the forming protrusion on the drive mold presses into the bottom of the relief groove, the opposing support body is on the same horizontal plane as the bottom of the opposite fixed groove. After release, the support body acts like a piston, applying a pulling force to the blank, ensuring that the blank does not fall off during the rotation of the moving mold plate. Furthermore, an air vent is provided in the fixed groove, and when the forming mold rotates to the appropriate position, the air vent blows gas outward, completing the unloading process. No manual material removal is required, saving unloading time and significantly improving work efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is an internal sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram of the internal structure of the molding die of the present invention.

[0021] Figure 4 This is a cross-sectional view showing the connection between the side plate and the molding die of the present invention.

[0022] Figure 5 This is an internal sectional view of the support box of the present invention.

[0023] Figure 6 This is a side view of the molding die of the present invention.

[0024] Figure 7 For the present invention Figure 2 Enlarged view of point A in the image.

[0025] In the diagram: 1. Machine body, 2. Hydraulic cylinder one, 3. Locking box, 4. Moving template, 5. Forming mold, 6. Side plate, 7. Hydraulic cylinder two, 8. Discharge box, 9. Hydraulic cylinder three, 10. Drive mold, 11. Conveyor belt, 12. Top plate one, 13. Hydraulic cylinder four, 14. Elastomer one, 15. Top plate two, 16. Feed trough, 17. Relief trough, 18. Fixing trough, 19. Inclined tube, 20. Horizontal tube, 21. Inner shaft, 22. Elastomer two, 23. End shaft one, 24. Positioning piece, 25. Clamping plate, 26. Motor, 27. Support box, 28. End shaft two, 29. Support body, 30. Slide rod, 31. Air pipe one, 32. Discharge trough, 33. Through groove, 34. Blank, 35. Branch pipe one, 36. Pressure plate, 37. Branch pipe two, 38. Air outlet. Detailed Implementation

[0026] The present invention is illustrated below with specific embodiments, but these are not intended to limit the invention.

[0027] Example

[0028] like Figures 1-7 As shown in this embodiment, an automatic demolding stamping device is provided, including a machine body 1. A rotatable forming mold 5 and a drive mold 10 that can slide towards the forming mold 5 are installed on the machine body 1. A feeding mechanism for pushing blank 34 is provided on the side of the forming mold 5 away from the drive mold 10. A slide rail is installed on the machine body 1, and a moving template 4 slides on the slide rail. The drive mold 10 is fixed on the moving template 4. The movement mode of the drive mold 10 is similar to the movement direction of the moving mold on a conventional stamping device, which is prior art and not an innovation of this invention. Therefore, this invention will not elaborate on it.

[0029] The molding die 5 is a cuboid with a square cross-section. Fixing grooves 18 for fixing the blank 34 are provided on two opposite faces of the molding die 5. The shape of the fixing grooves 18 can be changed according to different products, such as... Figure 6As shown in the figure, the fixed groove 18 in this embodiment is circular in shape. Between two adjacent mold closing operations, the forming mold rotates at an angle of 90 degrees. Side plates 6 are fixed on both sides of the machine body 1. Locking boxes 3 and support boxes 27 are fixed on the two side plates 6 respectively. An inner shaft 21 is fixed inside the forming mold 5. End shaft 1 23 and end shaft 28 are fixedly installed at both ends of the inner shaft 21 respectively. End shaft 1 23 is rotatably installed inside the locking box 3, and end shaft 28 is rotatably installed inside the support box 27. A motor 26 for driving the rotation of end shaft 28 is fixed outside the support box 27. The side plates 6 are components for supporting the forming mold 5. End shaft 1 23, inner shaft 21 and end shaft 28 are fixedly connected to each other. The motor 26 drives end shaft 1 23, inner shaft 21 and end shaft 28 to rotate simultaneously. The two ends of the forming mold 5 are rotatably installed on the two side plates 6 respectively. The shape of end shaft 28 is... The device is disc-shaped, with four planes evenly distributed circumferentially on the outer ring surface of the second end shaft 28. Four positioning plates 24 are connected to the inner wall of the support box 27 via an elastic body 22. These four positioning plates 24 are evenly distributed axially inside the support box 27 and abut against the four planes. The positioning plates 24 abutting against the outer ring surface of the second end shaft 28 provide temporary positioning, facilitating subsequent fixing. The locking box 3 contains a sliding plate 25 that can slide towards the first end shaft 23. The plate 25 has multiple protrusions, and the first end shaft 23 has corresponding slots. A hydraulic cylinder 2 is fixed to the locking box 3 to move the plate 25. After temporary positioning of the second end shaft 28, the hydraulic cylinder 2 drives the plate 25 to slide towards the first end shaft 23. The protrusions on the plate 25 engage with the slots on the first end shaft 23, thus fixing the first end shaft 23.

[0030] like Figure 2 and Figure 7As shown, the feeding mechanism is equipped with a top plate 12 that moves towards the inside of the forming mold 5. When the top plate 12 slides towards the forming mold 5, the blank 34 is adsorbed onto the side wall of the top plate 12. The feeding mechanism includes a discharge box 8, which is fixed to the machine body 1. The discharge box 8 has an inlet groove 16 and a discharge groove 32 inside. The top plate 12 is slidably installed inside the discharge groove 32. Several stacked blanks 34 are installed at the bottom of the inlet groove 16. A slidable top plate 2 15 is provided on one side of the blank 34. A through groove 33 is provided at the bottom of the inlet groove 16, which communicates with the discharge groove 32. A pressure plate 36 is slidably installed up and down inside the discharge box 8 directly above the through groove 33. When the pressure plate 36 slides down, it pushes the blank 34 at the end into the discharge groove 32. The top plate 2 15 is horizontally positioned at the bottom of the inlet groove 16. Several blanks 34 to be processed are stacked on one side of the top plate 2 15. Under the elastic force of the elastic body 14, the top plate 2 15 pushes the blanks 34 to adhere to the side wall of the feed trough 16. One blank 34 away from the top plate 2 15 is arranged directly above the through groove 33. The hydraulic cylinder 2 7 can push the blank 34 down to the inside of the discharge trough 32. The discharge box 8 is equipped with hydraulic cylinder 3 9 and hydraulic cylinder 4 13. The output end of hydraulic cylinder 3 9 is fixedly connected to the top plate 12, and the output end of hydraulic cylinder 4 13 is fixed to the top plate 2 15. The elastic body 14 is sleeved on the output shaft of hydraulic cylinder 3 9. One end of the elastic body 14 is connected to the top plate 2 15 and the other end is connected to the inside of the discharge box 8. When placing the blanks 34, the top plate 2 15 needs to be moved in advance by hydraulic cylinder 3 9 to make room for placing the blanks 34. Several stacked blanks 34 can then be placed horizontally into the bottom of the feed trough 16.

[0031] The driving mold 10, forming mold 5, and top plate 12 are on the same horizontal plane. Both sides of the forming mold 5 are provided with relief grooves 17 for forming. The relief grooves 17 are connected to corresponding fixing grooves 18. During the stamping process, the blank 34 installed inside the fixing groove 18 deforms. A support body 29 is slidably installed inside the relief groove 17. The two support bodies 29 are interconnected and both are installed inside the forming mold 5 through a reset device. Slide rods 30 are installed on the two symmetrical support bodies 29. An elastic body 14 is sleeved on the outside of each slide rod 30. One end of the elastic body is connected to the support body 29. In its natural state, there is a gap between the two slide rods 30. Only after a slide rod 30 moves a certain distance will it drive the other slide rod opposite it. The fixed groove 18 has several air outlets 38 inside. When the forming mold 5 rotates, the air outlets 38 release air to the outside when the fixed groove 18 rotates to the downward direction. The forming mold 5 has a horizontal pipe 20 that runs through both ends of the forming mold 5 inside. The air outlets 38 are all connected to the horizontal pipe 20 through the inclined pipe 19. The side plate 6 has an air pipe 31 inside. When the fixed groove 18 rotates to the downward direction, the horizontal pipe 20 is connected to the air pipe 31. One end of the air pipe 31 extends out of the side plate 6 and is connected to the blower installed on the machine body 1. When the processed material rotates to the downward direction, the blower will release air through the air pipe 31, the horizontal pipe 20 and the air outlets 38, applying an outward thrust to the processed material to complete the material discharge.

[0032] Working principle: During feeding, the hydraulic cylinder 39 pulls the top plate 2 15 to slide, putting several stacked billets 34 into the groove of the feed trough 16. Under the action of the elastic body 14, the top plate 2 15 pushes the billets 34 to press against the bottom side wall of the feed trough 16. The hydraulic cylinder 2 7 drives the pressure plate 36 to push the frontmost billet 34 through the through groove 33 to the front side of the top plate 12. The branch pipe 1 35 and the branch pipe 2 37 are connected by a plug-in connection. The branch pipe 2 37 is connected to an external blower. The blower exhausts the air inside the branch pipe 1 35 and the branch pipe 2 37, making the internal pressure of the branch pipe 1 35 and the branch pipe 2 37 decrease, so that the billets 34 can be adsorbed on the top plate 12. Under the push of the hydraulic cylinder 4 13, the top plate 12 can drive the billets 34 to slide out of the discharge box 8.

[0033] like Figures 2-3As shown, the forming mold 5 rotates to the horizontal position of the two fixed slots 18. The fixed slot 18 near the drive mold 10 is the processing fixed slot 18, and the fixed slot 18 near the top plate 12 is the feeding fixed slot 18. The two fixed slots 18 are respectively aligned with the drive mold 10 and the top plate 12. During operation, the drive mold 10 first slides towards the forming mold 5. The protrusion on the drive mold 10 pushes the support body 29 near the drive mold 10 to slide into the forming mold 5. The two opposing sliding rods 30 contact and push the support body 29 on the other side to slide. At the same time, the top plate 12 drives the blank 34 to slide towards the forming mold 5. When the blank 34 just enters the interior of the feeding fixed slot 18, the branch pipe 1 35 and the branch pipe 2 37 separate, and the top plate 12 loses its adsorption effect on the blank 34. Under the action of the elastic body 14, the function of the support body 29 and the piston... Similarly, an adsorption force is applied to the feeding fixing groove 18. The motor 26 drives the end shaft 28 to rotate, and the end shaft 28 drives the inner shaft 21 to rotate 180 degrees. The feeding fixing groove 18 rotates 180 degrees from above, and then the feeding fixing groove 18 becomes the processing fixing groove 18. The processing fixing groove 18 becomes the feeding fixing groove 18. The drive mold 10 slides back towards the forming mold 5, pressing the blank 34 inside the processing fixing groove 18 into shape. The top plate 12 pushes the next blank 34 into the inside of the feeding fixing groove 18. Both the drive mold 10 and the top plate 12 apply pressure to the forming mold 5 to reduce the lateral thrust on the inner shaft 21. After processing, the end shaft 28 drives the inner shaft 21 to rotate 90 degrees. The processed material falls onto the discharge device at the bottom of the machine body 1 under the thrust of the gas blown out of the air outlet 38, and is discharged outward by the conveyor belt 11.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention without departing from the spirit and scope of the present invention. Any modifications or partial substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automatic demolding stamping device, comprising a machine body (1), characterized in that, The machine body (1) is equipped with a rotatable forming mold (5) and a drive mold (10) that can slide toward the forming mold (5). The side of the forming mold (5) away from the drive mold (10) is provided with a feeding mechanism for pushing the blank (34). The molding die (5) is a cuboid with a square cross-section, and fixing grooves (18) for fixing blanks (34) are provided on two opposite surfaces of the molding die (5). The feeding mechanism is equipped with a top plate (12) that moves toward the inside of the forming mold (5). When the top plate (12) slides toward the forming mold (5), the blank (34) is adsorbed onto the side wall of the top plate (12). The drive mold (10), the forming mold (5), and the top plate (12) are on the same horizontal plane; Both sides of the forming mold (5) are provided with relief grooves (17) for forming. The relief grooves (17) are connected to the corresponding fixing grooves (18). During the stamping process, the blank (34) installed inside the fixing groove (18) is deformed. A support body (29) is slidably installed inside the relief groove (17). The two support bodies (29) are linked to each other and both support bodies (29) are installed inside the forming mold (5) through a reset device. Each of the two mutually symmetrical support bodies (29) is equipped with a slide rod (30). An elastic body (14) is sleeved on the outside of the slide rod (30). One end of the elastic body is connected to the support body (29). In the natural state, there is a gap between the two slide rods (30). The fixed groove (18) has several air outlets (38) inside. When the mold (5) rotates, the air outlets (38) release air to the outside when the fixed groove (18) rotates to face downwards. The machine body (1) has side plates (6) fixed on both sides. The two ends of the molding mold (5) are rotatably mounted on the two side plates (6). The molding mold (5) has a horizontal pipe (20) that runs through both ends of the molding mold (5). Several air outlets (38) are connected to the horizontal pipe (20) through the inclined pipe (19). The side plate (6) has an air pipe (31) inside. When the fixed groove (18) is rotated to face downward, the horizontal pipe (20) is connected to the air pipe (31). One end of the air pipe (31) extends out of the side plate (6) and is connected to the blower installed on the machine body (1).

2. The automatic demolding stamping equipment according to claim 1, characterized in that, A locking box (3) and a support box (27) are fixed on the two side plates (6), respectively. An inner shaft (21) is fixed inside the molding mold (5). End shaft one (23) and end shaft two (28) are fixedly installed at both ends of the inner shaft (21). End shaft one (23) is rotatably installed inside the locking box (3), and end shaft two (28) is rotatably installed inside the support box (27). A motor (26) for driving end shaft two (28) to rotate is fixed outside the support box (27).

3. The automatic demolding stamping equipment according to claim 2, characterized in that, The second end shaft (28) is disc-shaped. Four planes are evenly opened on the outer ring surface of the second end shaft (28). Four positioning pieces (24) are connected to the inner wall of the support box (27) through the second elastic body (22). The four positioning pieces (24) are evenly distributed in the support box (27) along the axial direction. The four positioning pieces (24) are respectively pressed against the four planes. The locking box (3) is equipped with a card plate (25) that can slide towards the first end shaft (23). The card plate (25) is provided with multiple protrusions. The first end shaft (23) is provided with a slot corresponding to the protrusions. The locking box (3) is fixed with a hydraulic cylinder (2) for pushing the card plate (25) to move.

4. The automatic demolding stamping equipment according to claim 1, characterized in that, The feeding mechanism includes a discharge box (8), which is fixed on the machine body (1). The discharge box (8) has an inlet groove (16) and a discharge groove (32) inside. The top plate (12) is slidably installed inside the discharge groove (32). Several stacked billets (34) are installed at the bottom of the inlet groove (16). A slidable top plate (15) is provided on one side of the billet (34). A through groove (33) is provided at the bottom of the inlet groove (16). The through groove (33) is connected to the discharge groove (32). A pressure plate (36) is slidably installed inside the discharge box (8) directly above the through groove (33). When the pressure plate (36) slides down, it pushes the billet (34) at the end into the discharge groove (32).

5. The automatic demolding stamping equipment according to claim 4, characterized in that, The discharge box (8) is equipped with a hydraulic cylinder three (9) and a hydraulic cylinder four (13). The output end of the hydraulic cylinder three (9) is fixedly connected to the top plate two (15), and the output end of the hydraulic cylinder four (13) is fixed to the top plate one (12). An elastic body one (14) is sleeved on the output shaft of the hydraulic cylinder three (9). One end of the elastic body one (14) is connected to the top plate two (15), and the other end is connected to the inside of the discharge box (8).

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