Stamping die capable of preventing materials from being stuck

Abstract

The utility model discloses a stamping die capable of preventing materials from being stuck, which relates to the technical field of stamping and comprises a base. A mounting frame is fixedly connected to the top of the base, a hydraulic cylinder is fixedly mounted at the top of the mounting frame, a piston rod of the hydraulic cylinder extends into the mounting frame and is fixedly connected with a lifting plate, a third sliding rod is slidably connected to the bottom of the lifting plate, and an upper pressing die is fixedly connected to the bottom of the third sliding rod; the top of each third sliding rod extends to the position above the lifting plate and is fixedly connected with a magnet frame. By arranging the material returning assembly, a second gear ring can be synchronously driven to ascend in the resetting process of the upper pressing die, then the second gear ring starts to rotate, a first gear ring is driven to rotate synchronously, a second rack moves towards the side close to a pressing plate, the pressing plate is driven to move, a third sliding rod is driven to move, and a material ejecting frame is pushed to move; and the workpiece is ejected out to finish stripping, so that manual stripping is not needed, the condition of material blocking is avoided, and meanwhile, the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping, in particular to a stamping die for preventing material jamming. Background Technique

[0002] Stamping is a common metal processing method used to quickly manufacture parts with specific shapes and sizes from metal sheets through a die. The principle of stamping is based on the plastic deformation of materials. By applying high pressure, the metal sheet is placed in the die, and the shape and internal details of the die are used to cause plastic deformation of the material, ultimately obtaining the metal part with the required shape.

[0003] In the current stamping process, especially when manufacturing sheet metal parts with a "mouth" - shaped structure that is similar to a nearly closed loop but not closed at the top, there is a significant technical problem: after stamping, the material will get stuck on the die, making it difficult for the workpiece to automatically fall off the die. The reason is that this structure forms an approximate closed loop during the stamping process, and the edge part of the workpiece fits tightly under the closing pressure of the die, resulting in the sheet metal part being easily stuck by the cavity of the die after stamping and unable to achieve automatic demoulding. This problem seriously affects production efficiency and work efficiency. First, manual demoulding not only increases the labor intensity of operators but also may pose safety hazards during the operation process. Second, manual demoulding requires additional time, reducing the operating efficiency of the entire production line. Third, the workpiece after stamping may be clamped on the die with a certain force through the forming plate, and it is not easy to perform the demoulding operation manually, that is, it is easy to occur the situation of material jamming, which is not conducive to practical applications. Content of the Utility Model

[0004] The purpose of the utility model is to provide a stamping die for preventing material jamming to solve the problems raised in the above - mentioned background technique.

[0005] To solve the above - mentioned technical problems, the technical solution adopted by the utility model is:

[0006] A stamping die for preventing material jamming includes a base; a mounting frame is fixedly connected to the top of the base, a hydraulic cylinder is fixedly installed on the top of the mounting frame, the piston rod of the hydraulic cylinder extends into the interior of the mounting frame and is fixedly connected to a lifting plate, a third sliding rod is slidably connected to the bottom of the lifting plate, the bottom of the third sliding rod is fixedly connected to an upper pressing die, the top of the third sliding rod extends above the lifting plate and is fixedly connected to a magnet frame, a lower die frame is fixedly connected to the top of the base, the upper pressing die is used in cooperation with the lower die frame, and the lifting plate is made of iron sheet; a hemming assembly is arranged on the top of the lower die frame, and the hemming assembly is used for secondary stamping of the workpiece; a transmission assembly is arranged between the hemming assembly and the upper pressing die, and the transmission assembly is used to drive the hemming assembly to act through the movement of the lifting plate; a material discharging assembly is arranged on one side of the upper pressing die, and the material discharging assembly is used to discharge the stamped material.

[0007] With the above technical solution, during the reset process of the upper pressing die, the second gear ring can be synchronously driven to rise, and then the second gear ring will start to rotate, further driving the first gear ring to rotate synchronously, causing the second rack to move towards the side close to the pressing plate, driving the pressing plate to move, further driving the third sliding rod to move, pushing the blanking rack to move, and ejecting the workpiece to complete the blanking.

[0008] A further improvement of the technical solution of the present utility model lies in that: the flanging assembly includes two slide rails, the slide rails are symmetrically and fixedly connected to the top of the lower die holder, a slide table is slidably connected between the outer sides of the slide rails and the top of the slide table, and a fillet is provided at the bottom of the side of the slide table close to each other.

[0009] With the above technical solution, it is convenient to perform secondary bending on the workpiece by controlling the two slide tables to move towards each other.

[0010] A further improvement of the technical solution of the present utility model lies in that: the transmission assembly includes a slider, the slider is fixedly connected to the top of the slide table, a communication groove is provided on one side of the slider, and transmission grooves communicating with the inside of the communication groove are symmetrically provided on the opposite sides of the slider. An L-shaped plate is fixedly connected between the top of the base and the lower die holder. The top of the inner side of the L-shaped plate is slidably connected with a first sliding rod. The top of the first sliding rod extends above the L-shaped plate and is fixedly connected with a pressing block. The bottom of the first sliding rod extends into the communication groove and is fixedly connected with a transmission rod, and the transmission rod is slidably connected with the transmission groove.

[0011] With the above technical solution, by controlling the hydraulic cylinder to press down, the lifting plate is separated from the magnet holder, and as the lifting plate continues to descend, it will press down the pressing block, and then the pressing block pushes the first sliding rod downward, and then drives the transmission groove through the transmission rod, causing the slider to move towards each other, and then simultaneously driving the slide table to move towards each other.

[0012] A further improvement of the technical solution of the present utility model lies in that: the pressing block is provided as a magnet.

[0013] With the above technical solution, by moving the pressing plate, during the upward movement of the lifting plate, the first sliding rod can be driven to move upward by the magnetic force of the pressing block on the lifting plate, and the slider is driven to move away from each other. When the two sliders move to the farthest position, they are blocked by the L-shaped plate and cannot continue to move. At this time, as the lifting plate continues to rise, the lifting plate will be separated from the pressing block.

[0014] A further improvement of the technical solution of the present utility model lies in: The material discharging assembly includes a linkage block fixedly connected to one side of the upper pressing die. One side of the linkage block is fixedly connected with a follower plate. One side of the follower plate is slidably connected with a second sliding rod. One end of the second sliding rod is fixedly connected with a pressing plate. The end of the second sliding rod away from the pressing plate extends to the other side of the follower plate and is fixedly connected with a material ejecting frame. A spring is sleeved on the outer side of the second sliding rod and between the follower plate and the pressing plate. The second sliding rod is arranged as a square rod.

[0015] By adopting the above technical solution, by moving the pressing plate, the third sliding rod can be driven to move and the spring can be compressed, pushing the material ejecting frame to move and ejecting the workpiece to complete the material discharging.

[0016] A further improvement of the technical solution of the present utility model lies in: At the top inside the mounting frame, there is fixedly connected an elongation frame. At the bottom of the elongation frame, there is fixedly connected a first rack. On the side of the follower plate away from the linkage block, there are symmetrically fixedly connected transmission frames. Between the transmission frames close to each other, there is a rotating shaft rotatably connected. On the outer side of the rotating shaft, there is a first gear ring connected through a one-way bearing. On both sides of the first gear ring, there are fixedly connected second gear rings. The second gear rings are used in cooperation with the first rack. On the side of the pressing plate away from the second sliding rod, there is fixedly connected a second rack. The second rack is meshed and connected with the first gear ring.

[0017] By adopting the above technical solution, as the lifting plate rises and until it contacts the magnet frame and then starts to lift it, the upper pressing die is driven to rise and the workpiece is lifted. When the second gear ring meshes with the first rack, as the upper pressing die continues to rise, it will drive the second gear ring to rise, and then the second gear ring will start to rotate, driving the first gear ring to rotate synchronously, causing the second rack to move towards the side close to the pressing plate and driving the pressing plate to move.

[0018] A further improvement of the technical solution of the present utility model lies in: There is a reinforcing plate fixedly connected between the follower plate and the transmission frame.

[0019] By adopting the above technical solution, it is convenient to strengthen the structure of the transmission frame so that the transmission is more stable during movement.

[0020] Due to adopting the above technical solution, compared with the prior art, the technical progress achieved by the present utility model is:

[0021] 1. The present utility model provides a stamping die for preventing material jamming. By setting the material discharging assembly, it can synchronously drive the second gear ring to rise during the reset process of the upper pressing die. Then the second gear ring will start to rotate, driving the first gear ring to rotate synchronously, causing the second rack to move towards the side close to the pressing plate and driving the pressing plate to move, and then driving the third sliding rod to move, pushing the material ejecting frame to move and ejecting the workpiece to complete the material discharging. Thus, manual material discharging is not required, the situation of material jamming is avoided, and the processing efficiency is improved at the same time.

[0022] 2. The utility model provides a stamping die for preventing material jamming. By setting transmission, it can be realized with only one drive in the whole process of primary stamping, secondary bending, resetting and material stripping, which greatly saves the cost of equipment. At the same time, each action is realized through linkage, so that the equipment does not require a complex control system, which greatly facilitates the actual application. Brief Description of the Drawings

[0023] The following further describes the present utility model with reference to the drawings.

[0024] Figure 1 It is a schematic structural diagram before stamping of the present utility model;

[0025] Figure 2 It is a schematic structural diagram during the stamping process of the present utility model;

[0026] Figure 3 It is a schematic structural diagram during the secondary bending process of the present utility model;

[0027] Figure 4 It is a schematic structural diagram during the resetting process of the present utility model;

[0028] Figure 5 It is a schematic exploded view of the hemming assembly of the present utility model;

[0029] Figure 6 It is a schematic installation structure diagram of the first gear ring and the second gear ring of the present utility model;

[0030] Figure 7 For the present utility model Figure 4 Enlarged view at A.

[0031] In the figure: 1, base; 2, mounting frame; 3, hydraulic cylinder; 5, upper pressing die; 6, lower die holder; 7, slide rail; 8, slide table; 9, slider; 10, transmission groove; 11, communication groove; 12, L-shaped plate; 13, first slide bar; 14, transmission rod; 15, linkage block; 16, follower plate; 17, transmission frame; 18, rotating shaft; 19, first gear ring; 20, second gear ring; 21, extension frame; 22, first rack; 23, second rack; 24, second slide bar; 25, pressing plate; 26, spring; 27, third slide bar; 28, magnet holder; 29, lifting plate; 30, ejector frame; 31, pressing block. Detailed Description of the Embodiment

[0032] The following further describes the present utility model in detail with reference to the embodiments:

[0033] Embodiment 1

[0034] As Figures 1-7As shown in the figure, the utility model provides a stamping die for preventing material jamming, including a base 1; a mounting frame 2 is fixedly connected to the top of the base 1, a hydraulic cylinder 3 is fixedly installed on the top of the mounting frame 2, the piston rod of the hydraulic cylinder 3 extends into the interior of the mounting frame 2 and is fixedly connected to a lifting plate 29, a third sliding rod 27 is slidably connected to the bottom of the lifting plate 29, the bottom of the third sliding rod 27 is fixedly connected to an upper pressing die 5, the tops of the third sliding rods 27 all extend above the lifting plate 29 and are fixedly connected to a magnet frame 28, a lower die frame 6 is fixedly connected to the top of the base 1, the upper pressing die 5 is used in cooperation with the lower die frame 6, and the lifting plate 29 is made of iron plate; a hemming assembly is arranged on the top of the lower die frame 6, and the hemming assembly is used for performing secondary stamping on the workpiece; a transmission assembly is arranged between the hemming assembly and the upper pressing die 5, and the transmission assembly is used for driving the hemming assembly to act through the movement of the lifting plate 29; a material discharging assembly is arranged on one side of the upper pressing die 5, and the material discharging assembly is used for discharging the stamped material.

[0035] In this embodiment, by setting the material discharging assembly, the second gear ring 20 can be synchronously driven to rise during the resetting process of the upper pressing die 5. Further, the second gear ring 20 will start to rotate, and then drive the first gear ring 19 to rotate synchronously, so that the second rack 23 moves towards the side close to the pressing plate 25, and drives the pressing plate 25 to move, and then drives the third sliding rod 27 to move, pushing the ejector frame 30 to move, ejecting the workpiece, completing the material discharging. Further, manual material discharging is not required, the situation of material jamming is avoided, and the processing efficiency is improved at the same time.

[0036] Embodiment 2

[0037] As Figure 1 and Figure 5 shown, on the basis of Embodiment 1, the utility model provides a technical solution: preferably, the hemming assembly includes two slide rails 7, the slide rails 7 are symmetrically and fixedly connected to the top of the lower die frame 6, a slide table 8 is slidably connected between the outer sides of the slide rails 7 and the top of the slide table 8, and a fillet is arranged at the bottom of the side of the slide table 8 close to each other.

[0038] In this embodiment, it is convenient to control the two slide tables 8 to move towards the side close to each other to perform secondary bending on the workpiece.

[0039] Embodiment 3

[0040] As Figure 4 and Figure 5As shown, on the basis of Embodiment 2, the present utility model provides a technical solution: Preferably, the transmission assembly includes a slider 9, the slider 9 is fixedly connected to the top of the slide table 8, a communication groove 11 is formed on one side of the slider 9, and transmission grooves 10 communicating with the inside of the communication groove 11 are symmetrically formed on opposite sides of the slider 9. A fixing plate 12 is fixedly connected between the top of the base 1 and the lower die holder 6. The top of the inner side of the fixing plate 12 is slidably connected with a first sliding rod 13. The top of the first sliding rod 13 extends above the fixing plate 12 and is fixedly connected with a pressing block 31. The bottom of the first sliding rod 13 extends into the communication groove 11 and is fixedly connected with a transmission rod 14. The transmission rod 14 is slidably connected with the transmission groove 10.

[0041] In this embodiment, by controlling the hydraulic cylinder 3 to press downwards, the lifting plate 29 is separated from the magnet holder 28, and as the lifting plate 29 continues to descend, it will press down the pressing block 31, thereby causing the pressing block 31 to push the first sliding rod 13 downwards, and then pushing the transmission groove 10 through the transmission rod 14, so that the slider 9 moves towards the approaching side, and then simultaneously drives the slide table 8 to move towards the approaching side.

[0042] Preferably, the pressing block 31 is made of magnet.

[0043] In this embodiment, during the upward movement of the lifting plate 29, the first sliding rod 13 can be driven to move upwards by the magnetic force of the pressing block 31 on the lifting plate 29, and the slider 9 is driven to move towards the separating side. When the two sliders 9 move to the farthest position, they are blocked by the fixing plate 12 and cannot continue to move. At this time, as the lifting plate 29 continues to rise, the lifting plate 29 will be separated from the pressing block 31.

[0044] Embodiment 4

[0045] As Figure 4 and Figure 7 shown, on the basis of Embodiment 3, the present utility model provides a technical solution: Preferably, the material discharging assembly includes a linkage block 15 fixedly connected to one side of the upper pressing die 5. One side of the linkage block 15 is fixedly connected with a follower plate 16. One side of the follower plate 16 is slidably connected with a second sliding rod 24. One end of the second sliding rod 24 is fixedly connected with a pressing plate 25. The end of the second sliding rod 24 far from the pressing plate 25 extends to the other side of the follower plate 16 and is fixedly connected with a blanking frame 30. A spring 26 is sleeved on the outer side of the second sliding rod 24 between the follower plate 16 and the pressing plate 25. The second sliding rod 24 is a square rod.

[0046] In this embodiment, by moving the pressing plate 25, the third sliding rod 27 can be driven to move and the spring 26 is compressed, pushing the blanking frame 30 to move, ejecting the workpiece, and completing the material discharging.

[0047] Embodiment 5

[0048] AsFigure 4 and Figure 7 As shown in Figure 7 , on the basis of Embodiment 4, the present utility model provides a technical solution: Preferably, an extension frame 21 is fixedly connected to the top inside the mounting frame 2, a first rack 22 is fixedly connected to the bottom of the extension frame 21, transmission frames 17 are symmetrically and fixedly connected to the side of the follower plate 16 away from the linkage block 15, a rotating shaft 18 is rotatably connected between the transmission frames 17 close to each other, a first gear ring 19 is connected to the outside of the rotating shaft 18 through a one-way bearing, second gear rings 20 are fixedly connected to both sides of the first gear ring 19, the second gear rings 20 are used in cooperation with the first rack 22, a second rack 23 is fixedly connected to the side of the pressing plate 25 away from the second sliding rod 24, and the second rack 23 is meshed and connected with the first gear ring 19.

[0049] In this embodiment, as the lifting plate 29 rises, until it contacts the magnet frame 28 and then starts to lift it, thereby driving the upper pressing die 5 to rise and lifting the workpiece. When the second gear ring 20 meshes with the first rack 22, at this time, as the upper pressing die 5 continues to rise, it will drive the second gear ring 20 to rise, and then the second gear ring 20 will start to rotate, thereby driving the first gear ring 19 to rotate synchronously, so that the second rack 23 moves towards the side close to the pressing plate 25 and drives the pressing plate 25 to move.

[0050] As Figure 4 and Figure 7 As shown in Figure 7 , preferably, a reinforcing plate is fixedly connected between the follower plate 16 and the transmission frame 17.

[0051] In this embodiment, it is convenient to strengthen the structure of the transmission frame 17 so that the transmission is more stable during movement.

[0052] Next, the working principle of the anti-jamming stamping die will be specifically described.

[0053] As Figures 1-7 As shown in Figures 1-7 , the workpiece is placed on the top of the sliding table 8, and the hydraulic cylinder 3 is controlled to work through an external control device to push the lifting plate 29 downward. In the initial stage of pushing, the magnet frame 28 moves downward under the action of the iron lifting plate 29, and then drives the upper pressing die 5 to move downward through the third sliding rod 27 until the upper pressing die 5 abuts against the workpiece. As the hydraulic cylinder 3 continues to push downward, the workpiece starts to bend until the workpiece is pressed to the bottom of the inner wall of the lower die holder 6; control the hydraulic cylinder 3 to continue to press downward so that the lifting plate 29 is separated from the magnet frame 28, and as the lifting plate 29 continues to descend, it will press the pressing block 31 downward, thereby causing the pressing block 31 to push the first sliding rod 13 downward, and then driving the transmission groove 10 through the transmission rod 14, so that the slider 9 moves towards the side close to each other, and then drives the sliding table 8 to move towards the side close to each other at the same time to perform secondary flanging on the workpiece;

[0054] During the downward movement of the upper die 5, the second gear ring 20 moves downward accordingly. However, since the first gear ring 19 and the rotating shaft 18 are connected through a one-way bearing, neither the second gear ring 20 nor the first gear ring 19 rotates at this time.

[0055] After the workpiece is formed by secondary flanging, the forming is completed. At this time, the workpiece is clamped on the upper die 5. Then, control the hydraulic cylinder 3 to work to retract the lifting plate 29. In the initial stage of retraction, the lifting plate 29 drives the pressing block 31 to move upward through magnetic force, and then drives the third slide rod 27 and the transmission rod 14 to move upward, thereby squeezing the transmission groove 10, causing the slider 9 to move to the far side, and driving the slide table 8 to move to the far side, so that there is no obstruction above the workpiece; and as the lifting plate 29 continues to rise, until it contacts the magnet holder 28 and then starts to lift it, thereby driving the upper die 5 to rise and lifting the workpiece. Lift it until the second gear ring 20 meshes with the first rack 22. At this time, as the upper die 5 continues to rise, it will drive the second gear ring 20 to rise, and then the second gear ring 20 will start to rotate, and then drive the first gear ring 19 to rotate synchronously, so that the second rack 23 moves to the side close to the pressing plate 25, and drives the pressing plate 25 to move, and then drives the third slide rod 27 to move, pushing the ejector frame 30 to move, and ejecting the workpiece to complete the blanking.

[0056] As the upper die 5 continues to rise, the second gear ring 20 disengages from the first rack 22 upward. At this time, the second gear ring 20 loses its restraint, and then under the rebound action of the spring 26, it pushes the pressing plate 25 to reset, and at the same time drives the ejector frame 30 to reset through the third slide rod 27; at this time, the next working cycle can be entered.

[0057] The above text generally describes the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A stamping die for preventing material from getting stuck, comprising a base (1); characterized in that: The top of the base (1) is fixedly connected to a mounting frame (2), the top of the mounting frame (2) is fixedly installed with a hydraulic cylinder (3), the piston rod of the hydraulic cylinder (3) extends to the inside of the mounting frame (2) and is fixedly connected to a lifting plate (29), the bottom of the lifting plate (29) is slidably connected to a third slide bar (27), the bottom of the third slide bar (27) is fixedly connected to an upper die (5), the top of the third slide bar (27) extends to the top of the lifting plate (29) and is fixedly connected to a magnet frame (28), the top of the base (1) is fixedly connected to a lower die frame (6), the upper die (5) is used in conjunction with the lower die frame (6), and the lifting plate (29) is set as an iron plate; A folding assembly is provided on the top of the lower die frame (6), and the folding assembly is used to perform secondary stamping on the workpiece; a transmission assembly is provided between the folding assembly and the upper die (5), and the transmission assembly is used to drive the folding assembly to move through the movement of the lifting plate (29); a material withdrawal assembly is provided on one side of the upper die (5), and the material withdrawal assembly is used to withdraw the stamped material.

2. The anti-stuck material stamping die according to claim 1, characterized in that: The folding assembly comprises two slide rails (7), wherein the slide rails (7) are symmetrically fixedly connected to the top of the lower mold frame (6), a slide table (8) is slidably connected between the outer sides of the slide rails (7) and the top of the slide table (8), and a rounded corner is arranged at the bottom of one side of the slide table (8).

3. The anti-stuck material stamping die according to claim 2, characterized in that: The transmission assembly comprises a slider (9), the slider (9) being fixedly connected to the top of the slide table (8), a connecting groove (11) being provided on one side of the slider (9), and transmission grooves (10) communicating with the inside of the connecting groove (11) being symmetrically provided on opposite sides of the slider (9), an L-shaped plate (12) being fixedly connected between the top of the base (1) and the lower mold frame (6), a first slide bar (13) being slidably connected to the top of the inner side of the L-shaped plate (12), the top of the first slide bar (13) extending to the top of the L-shaped plate (12) and being fixedly connected to a pressing block (31), the bottom of the first slide bar (13) extending to the inside of the connecting groove (11) and being fixedly connected to a transmission rod (14), and the transmission rod (14) being slidably connected to the transmission groove (10).

4. The anti-stuck material stamping die according to claim 3, characterized in that: The pressing block (31) is configured as a magnet.

5. The anti-stuck material stamping die according to claim 4, characterized in that: The material stripping assembly comprises a linkage block (15) fixedly connected to one side of the upper die (5); one side of the linkage block (15) is fixedly connected to a follower plate (16); one side of the follower plate (16) is slidably connected to a second slide bar (24); one end of the second slide bar (24) is fixedly connected to a pressure plate (25); one end of the second slide bar (24) away from the pressure plate (25) extends to the other side of the follower plate (16) and is fixedly connected to a material ejection frame (30); a spring (26) is sleeved on the outer side of the second slide bar (24) and located between the follower plate (16) and the pressure plate (25); and the second slide bar (24) is configured as a square bar.

6. The anti-stuck material stamping die according to claim 5, characterized in that: The top of the inner side of the mounting frame (2) is fixedly connected with an extension frame (21), the bottom of the extension frame (21) is fixedly connected with a first rack (22), the side of the follower plate (16) away from the linkage block (15) is symmetrically fixedly connected with a transmission frame (17), the side of the transmission frame (17) close to each other is rotatably connected with a rotating shaft (18), the outer side of the rotating shaft (18) is connected with a first gear ring (19) through a one-way bearing, both sides of the first gear ring (19) are fixedly connected with a second gear ring (20), the second gear ring (20) is used in conjunction with the first rack (22), the side of the pressure plate (25) away from the second slide rod (24) is fixedly connected with a second rack (23), the second rack (23) is meshingly connected with the first gear ring (19).

7. The anti-stuck material stamping die according to claim 6, characterized in that: A reinforcing plate is fixedly connected between the follower plate (16) and the transmission frame (17).

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