Anti-rebound hardware stamping die

Abstract

The utility model relates to the technical field of hardware stamping, in particular to an anti-rebound hardware stamping die. The conveying belt is arranged to drive the through pipe to move, when the air cylinder drives the punching head to cut a plate and press downwards continuously, the waste plate extrudes the suction cup, meanwhile, the through pipe extrudes the soft rubber pad, at the moment, a closed environment is formed in the through pipe, air in the through pipe is extruded out to form negative pressure, and therefore the waste plate is cut. When the through pipe moves to the curved surface of the transmission belt, the distance between the transmission belt and the fixing block is increased, at the moment, a gap is formed between the through pipe and the soft rubber pad, air enters the through pipe to enable the pressure intensity in the through pipe to return to normal, and the suction force of the suction cup to the waste plate is reduced; and at the moment, the waste plates naturally fall under the influence of the gravity of the waste plates, and the problems that after the hardware plates are cut, the waste rises to the surface of the workbench, the quality of finished products is affected in the subsequent machining process, and a mold is possibly damaged are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal stamping, in particular to an anti-rebound metal stamping die. Background Art

[0002] Metal stamping die Metal stamping die is a kind of stamping die. It uses metal plates as processing objects. Through punching machines and dies, the plates are torn, cut, separated, ribbed, and drawn to form products of various shapes that meet people's needs. When metal stamping dies under current technology cut some plates, due to the high-speed operation of the punch head, it is easy to form a vacuum inside the through hole. After the punch head cuts the waste material and the punch head rises, the waste material will rise to the surface of the punching table, which will affect the quality of the finished product during subsequent processing and may also cause damage to the mold. In view of this, we propose an anti-rebound metal stamping die. Utility Model Content

[0003] The utility model aims to provide a metal stamping die with anti-rebound function, so as to solve the problems mentioned in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a metal stamping die with anti-rebound, including a stamping frame, the stamping frame includes a lower bearing plate and an upper bearing plate arranged on the upper side of the lower bearing plate, the upper side of the upper bearing plate is fixedly connected to a cylinder, the piston rod end of the cylinder passes through the upper bearing plate and is fixedly connected to a stamping head, a stamping hole is opened in the middle of the lower bearing plate, the stamping hole is located directly below the stamping head, a driving device and a guiding device are arranged on the lower side of the stamping frame, the guiding device is located on the inner side of the driving device, and a plurality of anti-rebound devices arranged at equal distances are arranged on the outer side of the guiding device The anti-rebound component includes a connecting block and a through pipe arranged on the upper side of the connecting block, a suction cup is fixedly connected to the top of the through pipe, a soft rubber pad is fixedly connected to the top of the connecting block, and the through pipe is located on the upper side of the soft rubber pad. When the punch head is pressed down to cut the metal sheet, the punch head will continue to press down to press the cut waste onto the suction cup, and at the same time, the through pipe will squeeze the soft rubber pad to form a closed space inside the through pipe. At this time, the punch head continues to press down to squeeze out the air inside the through pipe to form a negative pressure inside the through pipe, so that the suction cup will suck and fix the cut sheet to prevent the waste from rebounding.

[0005] As a further improvement of the technical solution, a slide groove is provided on the opposite side of the inner wall of the through pipe, a slide rod is slidably arranged inside the slide groove, and one end of the slide rod passes through the soft rubber pad and is fixedly connected to the top of the connecting block.

[0006] As a further improvement of the technical solution, the guide device includes a fixed block, a guide groove is opened on the outer side of the fixed block, a roller is rotatably arranged inside the guide groove, and the roller is rotatably arranged inside the connecting block.

[0007] As a further improvement of the technical solution, a plurality of fixing rods are fixedly connected on both sides of the fixing block, the bottom end of the lower bearing plate is fixedly connected to two side plates, and the end of the fixing rod is fixedly connected to one side of the side plate.

[0008] As a further improvement of the present technical solution, the driving device includes a transmission belt, the through tube passes through the surface of the transmission belt and is fixed on the transmission belt, the transmission belt is arranged between two side plates, a plurality of gears are meshed on the inner side of the transmission belt, a rotating shaft is fixedly connected between two adjacent gears, the rotating shaft passes through the middle of the gear and extends out, one of the ends of the rotating shaft passes through the side plate and is fixedly connected to a motor, and the motor is fixedly arranged on the side plate.

[0009] As a further improvement of the technical solution, an ejection groove is provided at the bottom of the punch head, an ejection block is slidably arranged inside the ejection groove, and a plurality of springs for elastically supporting the ejection block are fixedly connected to the top of the ejection block and the inner side of the ejection groove.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] In the anti-rebound hardware stamping die, a transmission belt is set to drive the through tube to move. When the cylinder drives the punching head to cut the plate and continue to press down, the waste plate squeezes the suction cup, and the through tube squeezes the soft rubber pad at the same time. At this time, a closed environment is formed inside the through tube, and the air inside the through tube is squeezed out to form a negative pressure, so that the suction cup sucks and fixes the waste plate, and the transmission belt continues to rotate. When the through tube moves to the curved surface of the transmission belt, the distance between the transmission belt and the fixed block increases. At this time, a gap is generated between the through tube and the soft rubber pad, and air enters the through tube to restore the internal pressure of the through tube to normal, so that the suction force of the suction cup on the waste plate is reduced. At this time, the waste plate falls naturally due to its own gravity, which solves the problem that the waste will rise to the surface of the workbench after cutting the hardware plate, which will affect the quality of the finished product during subsequent processing and may also cause damage to the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a side sectional structural schematic diagram of the utility model;

[0014] Figure 3 The driving device of the utility model is a structural schematic diagram;

[0015] Figure 4 It is a schematic diagram of the structure of the utility model guide device and anti-rebound component;

[0016] Figure 5 It is a side sectional structural schematic diagram of the anti-rebound component of the utility model;

[0017] Figure 6 Utility Model Figure 2 Schematic diagram of the local enlarged structure at point A.

[0018] The meaning of each number in the figure is:

[0019] 1. Stamping machine frame; 11. Lower bearing plate; 12. Upper bearing plate; 13. Cylinder; 14. Stamping head; 15. Stamping hole; 16. Ejector groove; 17. Ejector block; 18. Spring; 19. Side plate; 2. Driving device; 21. Transmission belt; 22. Gear; 23. Rotating shaft; 24. Motor; 3. Guide device; 31. Fixed block; 32. Guide groove; 33. Fixed rod; 4. Anti-rebound assembly; 41. Connecting block; 42. Through pipe; 43. Suction cup; 44. Slide groove; 45. Slide rod; 46. Soft rubber pad; 47. Roller. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] Example 1

[0023] See also Figure 1-Figure 6As shown, this embodiment provides an anti-rebound metal stamping die, including a stamping machine frame 1, the stamping machine frame 1 includes a lower bearing plate 11 and an upper bearing plate 12 arranged on the upper side of the lower bearing plate 11, a cylinder 13 is fixedly connected to the upper side of the upper bearing plate 12, the piston rod end of the cylinder 13 passes through the upper bearing plate 12 and is fixedly connected to a stamping head 14, a stamping hole 15 is opened in the middle of the lower bearing plate 11, and the stamping hole 15 is located directly below the stamping head 14. When it is necessary to cut the metal sheet, the stamping head 14 is pushed down by the cylinder 13, and the stamping head 14 cuts the metal sheet through the stamping hole 15 opened in the lower bearing plate 11. A driving device 2 and a guiding device 3 are provided on the lower side of the stamping machine frame 1, and the guiding device 3 is located at the driving device 2, and a plurality of anti-rebound components 4 are arranged at equal distances on the outside of the guide device 3. The anti-rebound component 4 includes a connecting block 41 and a through pipe 42 arranged on the upper side of the connecting block 41. A suction cup 43 is fixedly connected to the top of the through pipe 42. When the punch head 14 is pressed down to cut the hardware sheet, the punch head 14 will continue to press down to press the cut waste onto the suction cup 43, and a soft rubber pad 46 is fixedly connected to the top of the connecting block 41. The through pipe 42 is located on the upper side of the soft rubber pad 46. As the punch head 14 continues to press down, the through pipe 42 squeezes the soft rubber pad 46 to form a closed space inside the through pipe 42. At the same time, the air inside the through pipe 42 is squeezed out to form a negative pressure inside the through pipe 42, so that the suction cup 43 sucks and fixes the cut sheet to prevent the waste from rebounding.

[0024] An ejection groove 16 is provided at the bottom of the punch head 14, and an ejection block 17 is slidably arranged inside the ejection groove 16. A plurality of springs 18 for elastically supporting the ejection block 17 are fixedly connected to the top of the ejection block 17 and the inner side of the ejection groove 16. When the punch head 14 cuts the sheet, the ejection block 17 is elastically supported by the springs 18 to pop out, and at the same time, the ejection block 17 ejects the waste sheet away from the punch head 14, thereby enhancing the anti-rebound effect.

[0025] The driving device 2 includes a transmission belt 21, which is arranged between the two side plates 19. A plurality of gears 22 are meshed on the inner side of the transmission belt 21. A rotating shaft 23 is fixedly connected between two adjacent gears 22. The rotating shaft 23 passes through the middle of the gear 22 and extends out. One end of the rotating shaft 23 passes through the side plate 19 and is fixedly connected to a motor 24. The bottom end of the lower bearing plate 11 is fixedly connected to the two side plates 19. The motor 24 is fixedly arranged on the side plate 19. When the motor 24 drives one of the rotating shafts 23 to rotate, the transmission belt 21 is moved by the meshing between the gear 22 and the transmission belt 21, and the transmission belt 21 is moved by the through pipe 42. The guide device 3 passes through the surface of the transmission belt 21 and is fixed on the transmission belt 21 so that the transmission belt 21 drives the anti-rebound component 4 to move. At the same time, in the application, every time the punch head 14 descends to cut the hardware plate once, the transmission belt 21 rotates once, so that the suction cup 43 is located directly below the punching hole 15. The guide device 3 includes a fixed block 31, and a guide groove 32 is opened on the outer side of the fixed block 31. A roller 47 is rotatably arranged inside the guide groove 32. The roller 47 is rotatably arranged inside the connecting block 41. When the transmission belt 21 drives the anti-rebound component 4 to move, the roller 47 rolls inside the guide groove 32. This arrangement can not only reduce the anti-rebound component 4 The friction force generated by the movement can extend the service life of the device and can also limit the position of the connecting block 41 to prevent the connecting block 41 from slipping when the through pipe 42 moves, causing the suction cup 43 to be unable to suck and fix the waste plate. Among them, the fixing block 31 is arranged on the inner side of the transmission belt 21, and the vertical distance between the curved surfaces between the transmission belt 21 and the fixing block 31 is greater than the handling distance between the horizontal planes. A slide groove 44 is provided on the opposite side of the inner wall of the through pipe 42. A slide rod 45 is slidably arranged inside the slide groove 44. One end of the slide rod 45 passes through the soft rubber pad 46 and is fixedly connected to the top of the connecting block 41. The slide rod 45 slides in the slide groove 44 to make the connecting block 41 The connecting block 41 is always located directly below the through pipe 42 to prevent the connecting block 41 from slipping during the movement of the anti-rebound component 4. When the transmission belt 21 drives the through pipe 42 to move to the curved surface of the transmission belt 21, the distance between the transmission belt 21 and the fixed block 31 increases, and the through pipe 42 will move away from the soft rubber pad 46 and form a gap. At this time, air will enter the through pipe 42, so that the internal pressure of the through pipe 42 returns to normal. At the same time, the suction cup 43 will loosen the waste plate and make it fall off naturally by the gravity of the waste plate itself. Multiple fixing rods 33 are fixedly connected on both sides of the fixed block 31, and the ends of the fixing rods 33 are fixedly connected to one side of the side plate 19.

[0026] When the anti-rebound metal stamping die of the present embodiment is used, the user turns on the motor 24 to make the transmission belt 21 drive the through pipe 42 to move, so that the through pipe 42 moves to just below the punching hole 15. At this time, the through pipe 42 squeezes the soft rubber pad 46, and the punch head 14 is lowered by the cylinder 13 to cut the metal plate, and the punch head 14 continues to descend to squeeze the cut waste plate against the suction cup 43, so that the air inside the through pipe 42 is squeezed out to form a negative pressure and form a closed environment inside the through pipe 42, so that the suction cup 43 sucks and fixes the waste plate, and then the transmission belt 21 continues to move. When the through pipe 42 moves to the curved surface section of the transmission belt 21, due to the increase in the distance between the transmission belt 21 and the fixed block 31, the pressure of the through pipe 42 on the soft rubber pad 46 is reduced and a gap is formed. At this time, air enters the through pipe 42 to restore the internal pressure of the through pipe 42 to normal, and the suction force of the suction cup 43 on the waste plate is reduced. At this time, the waste plate falls naturally under the influence of its own gravity.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A metal stamping die for preventing rebound, comprising a stamping frame (1), the stamping frame (1) comprising a lower bearing plate (11) and an upper bearing plate (12) arranged on the upper side of the lower bearing plate (11), a cylinder (13) being fixedly connected to the upper side of the upper bearing plate (12), a piston rod end of the cylinder (13) passing through the upper bearing plate (12) and being fixedly connected to a stamping head (14), a stamping hole (15) being opened in the middle of the lower bearing plate (11), the stamping hole (15) being located directly below the stamping head (14), characterized in that: A driving device (2) and a guiding device (3) are provided on the lower side of the punching machine frame (1); the guiding device (3) is located on the inner side of the driving device (2); a plurality of anti-rebound components (4) are arranged at equal distances on the outer side of the guiding device (3); the anti-rebound components (4) include a connecting block (41) and a through pipe (42) arranged on the upper side of the connecting block (41); a suction cup (43) is fixedly connected to the top of the through pipe (42); a soft rubber pad (46) is fixedly connected to the top of the connecting block (41); The tube (42) is located on the upper side of the soft rubber pad (46). When the punch head (14) is pressed down to cut the metal plate, the punch head (14) will continue to press down to press the cut waste onto the suction cup (43). At the same time, the through tube (42) will squeeze the soft rubber pad (46) to form a closed space inside the through tube (42). At this time, the punch head (14) continues to press down to squeeze out the air inside the through tube (42) to form a negative pressure inside the through tube (42), so that the suction cup (43) can suck and fix the cut plate.

2. The anti-rebound metal stamping die according to claim 1, characterized in that: A slide groove (44) is provided on the opposite side of the inner wall of the through pipe (42), a slide rod (45) is slidably arranged inside the slide groove (44), and one end of the slide rod (45) passes through the soft rubber pad (46) and is fixedly connected to the top of the connecting block (41).

3. The anti-rebound metal stamping die according to claim 1, characterized in that: The guide device (3) comprises a fixed block (31), a guide groove (32) is provided on the outside of the fixed block (31), a roller (47) is rotatably arranged inside the guide groove (32), and the roller (47) is rotatably arranged inside the connection block (41).

4. The anti-rebound metal stamping die according to claim 3, characterized in that: A plurality of fixing rods (33) are fixedly connected to both sides of the fixing block (31), the bottom end of the lower bearing plate (11) is fixedly connected to two side plates (19), and the end of the fixing rod (33) is fixedly connected to one side of the side plate (19).

5. The anti-rebound metal stamping die according to claim 4, characterized in that: The driving device (2) comprises a transmission belt (21), the through pipe (42) passes through the surface of the transmission belt (21) and is fixed on the transmission belt (21), the transmission belt (21) is arranged between two side plates (19), a plurality of gears (22) are meshed on the inner side of the transmission belt (21), a rotating shaft (23) is fixedly connected between two adjacent gears (22), the rotating shaft (23) passes through the middle of the gear (22) and extends out, one end of the rotating shaft (23) passes through the side plate (19) and is fixedly connected to a motor (24), and the motor (24) is fixedly arranged on the side plate (19).

6. The anti-rebound metal stamping die according to claim 1, characterized in that: An ejection groove (16) is provided at the bottom of the punch head (14), an ejection block (17) is slidably arranged inside the ejection groove (16), and a plurality of springs (18) for elastically supporting the ejection block (17) are fixedly connected at the top of the ejection block (17) and the inner side of the ejection groove (16).

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