Progressive die bending forming material lifting anti-shaking device

Abstract

The utility model relates to the technical field of progressive die, especially point to the bending forming lift material anti -shaking device of progressive die, including lower die seat, lower bending forming die, first lift material board, first nitrogen gas spring, second nitrogen gas spring, second lift material board, sliding block, L type lift material frame, horizontal nitrogen gas spring, driving block, upper die seat, third nitrogen gas spring, presser plate, upper bending forming die, fourth nitrogen gas spring, the sliding slope of setting in the other side of sliding block and setting in one side of driving block and with sliding slope sliding fit sliding guide slope, and sliding block is elastically connected with second lift material board through horizontal nitrogen gas spring, and there is bending forming warping space between second lift material board and lower bending forming die. The L type lift material frame of the application can stably lift the tail of the workpiece after bending forming, and the tail of the workpiece will not collide with the L type lift material frame in the process of warping upward, will not cause the damage and deformation of the tail of the workpiece, guarantees the quality of the workpiece after bending forming.

Description

Technical Field

[0001] This utility model relates to the field of progressive die technology, and in particular to a bending forming anti-shaking device for progressive dies. Background Technology

[0002] Among existing patents, the applicant filed a Chinese patent application on November 17, 2023, with application number 202323116587.6, disclosing a balanced lifting device and progressive die for strip stamping. Another Chinese patent application on December 22, 2023, with application number 202323526691.2, discloses a bending and forming lifting device for a progressive die. While both patents can lift the tail of the workpiece on the bent strip, during the bending process, the tail of the workpiece, when tilted upwards, will collide with the lifting plate / block. This makes it easy for the lifting plate / block to damage or deform the tail of the workpiece, making it difficult to guarantee the quality of the bent workpiece. Therefore, the defects are quite obvious, and a solution is urgently needed. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a bending and forming anti-shaking device for progressive dies.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A progressive die bending forming material lifting anti-shaking device includes a lower die base, a lower bending forming die mounted on the lower die base, a first lifting plate lifted on one side of the lower bending forming die, a first nitrogen spring mounted on the lower die base, a second nitrogen spring mounted on the lower die base and located on the side of the lower bending forming die away from the first lifting plate, a second lifting plate mounted on the top of the second nitrogen spring, a slider horizontally slidably connected to the second lifting plate, an L-shaped lifting frame located on the side of the slider near the lower bending forming die, a sliding inclined surface located on the other side of the slider, a horizontal nitrogen spring horizontally mounted on the second lifting plate, a drive block mounted on the lower die base and located on the side of the slider away from the L-shaped lifting frame, a sliding guide inclined surface located on one side of the drive block and slidingly engaged with the sliding inclined surface, an upper die base lifted above the lower die base, and a device for mounting... The upper die base has a third nitrogen spring, a pressure plate mounted at the bottom of the third nitrogen spring and located below the upper die base, an upper bending forming die mounted on the bottom surface of the upper die base for cooperating with the lower bending forming die, and a fourth nitrogen spring mounted on the bottom surface of the upper die base for abutting against the second lifting plate. The pressure plate is arranged opposite to the first lifting plate and located above the first lifting plate. The first lifting plate is mounted on the top of the first nitrogen spring. The slider is elastically connected to the second lifting plate via a horizontal nitrogen spring. There is a bending forming lifting space between the second lifting plate and the lower bending forming die. The elastic force of the third nitrogen spring is greater than that of the first nitrogen spring, and the elastic force of the fourth nitrogen spring is greater than that of the second nitrogen spring. Under normal conditions, the horizontal nitrogen spring applies an elastic force toward the drive block to the slider, and the pressure plate extends to the bottom of the upper bending forming die.

[0006] Furthermore, one side of the slider is provided with a sliding vertical surface that connects to the bottom end of the sliding inclined surface, and one side of the drive block is provided with a vertical guide surface that connects to the bottom end of the sliding guide inclined surface. The sliding vertical surface is used to slide in cooperation with the vertical guide surface.

[0007] Furthermore, the hollow spacer plate has a through hole, and the upper bending forming die is set to correspond to the through hole and can pass through the through hole.

[0008] Furthermore, the top surface of the lower bending forming die is provided with a bending slope.

[0009] Furthermore, the upper mold base is provided with guide pillars, and the lower mold base is provided with guide holes, with the guide pillars and guide holes slidingly engaged.

[0010] Furthermore, a contact surface is provided on one side of the drive block, which is connected to the top of the sliding guide slope. The contact surface is used to slide against the sliding vertical surface.

[0011] Furthermore, a stop is provided on the side of the second lifting plate away from the drive block. The stop is used to block the slider from moving away from the side of the sliding guide slope. The slider is horizontally slidably positioned between the stop and the drive block.

[0012] Furthermore, a limit block is provided on the top of the drive block, which is used to abut against the top surface of the second lifting plate.

[0013] Furthermore, the second lifting plate is equipped with a guide rail, and the slider is equipped with a guide block, which is slidably connected to the guide rail.

[0014] The beneficial effects of this utility model are as follows: In practical applications, the upper and lower mold bases are in the open mold state, the top surface of the first lifting plate is higher than the top surface of the lower bending forming mold, the pressure plate extends to the bottom of the upper bending forming mold, the side of the slider abuts against the top side of the drive block, the sliding inclined surface and the sliding guide inclined surface are misaligned and located above the sliding guide inclined surface, the horizontal nitrogen spring is in a compressed state, the material head end of the strip can move along the first lifting plate, multiple cantilevered workpieces are arranged on the strip, the part of the workpiece to be bent is located above the lower bending forming mold, the end of the workpiece away from the material head of the strip extends into the bending forming lifting space, and the tail of the workpiece (the cantilever part of the workpiece) is located below the L-shaped lifting frame. When the workpiece to be bent on the strip moves to the lower bending mold, When the forming mold is in place, the upper mold base and lower mold base are driven to close. During the gradual closing process of the upper mold base and lower mold base, the pressure plate first presses the end of the strip onto the first lifting plate. At this time, the bottom end of the fourth nitrogen spring abuts against the second lifting plate. Since the elastic force of the third nitrogen spring is greater than that of the first nitrogen spring, and the elastic force of the fourth nitrogen spring is greater than that of the second nitrogen spring, the downward-moving pressure plate moves down, the first lifting plate moves down, and compresses the first nitrogen spring. This causes the first lifting plate to drive the end of the strip to move down, thereby causing the tail of the workpiece on the strip to curl upward within the bending and forming lifting space. The downward-moving fourth nitrogen spring presses down on the second lifting plate, causing the slider to move down. When the slider moves down to the sliding inclined surface and the sliding guide inclined surface sliding engagement, the horizontal nitrogen spring gradually extends and drives... The slider, along with the L-shaped lifting frame, moves horizontally away from the lower bending die (outward horizontal movement). This allows the slider and L-shaped lifting frame to move downwards while simultaneously moving horizontally closer to the drive block. When the workpiece on the strip tilts upwards, it will not collide with or interfere with the L-shaped lifting frame. When the first and second lifting plates reach their lowest positions, the upper die base continues to descend, compressing the third and fourth nitrogen springs. The upper bending die follows the upper die base downwards and engages with the lower bending die to bend the workpiece. After bending, the tail of the workpiece remains tilted upwards. Then, the upper and lower die bases are driven to open. As the upper and lower die bases gradually open, the third and fourth nitrogen springs gradually extend. After the gas spring and the fourth nitrogen spring are fully extended, the first and second nitrogen springs gradually extend, and the first and second lifting plates gradually move upward. The first lifting plate lifts the head of the strip. As the slider gradually moves upward, under the sliding cooperation of the slider's sliding inclined surface and the driving block's sliding guide inclined surface, the slider drives the L-shaped lifting frame to move horizontally (inward) towards the lower bending forming die. The horizontal nitrogen spring is gradually compressed, causing the slider and the L-shaped lifting frame to rise and move horizontally towards the lower bending forming die. Since the tail of the bent workpiece has already curled upward above the L-shaped lifting frame, as the L-shaped lifting frame moves upward and horizontally, it supports and lifts the tail of the bent workpiece.This design allows the two ends of the bent workpiece on the conveyor belt to be lifted by the first lifting plate and the L-shaped lifting frame, respectively, and then the conveyor belt can be fed horizontally along the first lifting plate and the L-shaped lifting frame. The L-shaped lifting frame of this invention can stably lift and support the tail of the bent workpiece, preventing it from shaking. Furthermore, the tail of the workpiece will not collide with the L-shaped lifting frame during the upward lifting process, thus preventing damage and deformation to the tail and ensuring the quality of the bent workpiece. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the present invention in a fully open mold state and with the workpiece in a state to be bent and formed.

[0016] Figure 2 This is a cross-sectional view of the present invention in the state of gradually opening the mold after bending and forming, with the tail of the workpiece being lifted by the L-shaped lifting frame.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Lower die base; 2. Lower bending forming die; 3. First lifting plate; 4. First nitrogen spring; 5. Second nitrogen spring; 6. Second lifting plate; 7. Slider; 8. L-shaped lifting frame; 9. Sliding inclined surface; 10. Horizontal nitrogen spring; 11. Drive block; 12. Sliding guide inclined surface; 13. Upper die base; 14. Third nitrogen spring; 15. Pressure plate; 16. Upper bending forming die; 17. Fourth nitrogen spring; 18. Bending forming lifting space; 19. Sliding vertical surface; 20. Vertical guide surface; 21. Bending inclined surface; 22. Guide post; 23. Guide hole; 24. Contact surface; 25. Stop block; 26. Workpiece; 27. Tail end; 28. Part to be bent and formed. Detailed Implementation

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0020] like Figure 1 and Figure 2As shown, the progressive die bending forming material lifting anti-shaking device provided by this utility model includes a lower die base 1, a lower bending forming die 2 mounted on the lower die base 1, a first lifting plate 3 vertically mounted on one side of the lower bending forming die 2, a first nitrogen spring 4 mounted on the lower die base 1, a second nitrogen spring 5 mounted on the lower die base 1 and located on the side of the lower bending forming die 2 away from the first lifting plate 3, a second lifting plate 6 mounted on the top of the second nitrogen spring 5, and a horizontally slidably connected to the second... The following components are included: a slider 7 on the lifting plate 6; an L-shaped lifting frame 8 located on the side of the slider 7 near the lower bending forming die 2; a sliding inclined surface 9 located on the other side of the slider 7; a horizontal nitrogen spring 10 horizontally mounted on the second lifting plate 6; a drive block 11 mounted on the lower die base 1 and located on the side of the slider 7 away from the L-shaped lifting frame 8; a sliding guide inclined surface 12 located on one side of the drive block 11 and slidingly engaged with the sliding inclined surface 9; an upper die base 13 vertically mounted above the lower die base 1; and a component mounted on the lower die base 6. The upper die base 13 includes a third nitrogen spring 14, a pressure plate 15 mounted on the bottom end of the third nitrogen spring 14 and located below the upper die base 13, an upper bending forming die 16 mounted on the bottom surface of the upper die base 13 for cooperating with the lower bending forming die 2, and a fourth nitrogen spring 17 mounted on the bottom surface of the upper die base 13 for abutting against the second lifting plate 6. The pressure plate 15 is arranged opposite to the first lifting plate 3 and located above the first lifting plate 3. The first lifting plate 3 is mounted on the first nitrogen spring. At the top of spring 4, slider 7 is elastically connected to second lifting plate 6 via horizontal nitrogen spring 10. There is bending and forming lifting space 18 between second lifting plate 6 and lower bending forming die 2. The elastic force of third nitrogen spring 14 is greater than that of first nitrogen spring 4, and the elastic force of fourth nitrogen spring 17 is greater than that of second nitrogen spring 5. Under normal conditions, horizontal nitrogen spring 10 applies elastic force toward drive block 11 to slider 7, and pressure plate 15 extends to below upper bending forming die 16.

[0021] In practical applications, the upper mold base 13 and the lower mold base 1 are in the open mold state. The top surface of the first lifting plate 3 is higher than the top surface of the lower bending forming mold 2. The pressure plate 15 extends to the bottom of the upper bending forming mold 16. The side of the slider 7 abuts against the top side of the drive block 11. The sliding inclined surface 9 and the sliding guide inclined surface 12 are misaligned and located above the sliding guide inclined surface 12. The horizontal nitrogen spring 10 is in a compressed state. The material head end of the strip can move along the first lifting plate 3. Multiple cantilevered workpieces 26 are arranged on the strip. The bending forming part 28 of the workpiece 26 is located above the lower bending forming mold 2. The end of the workpiece 26 away from the material head of the strip extends into the bending forming lifting space 18. The tail 27 of the workpiece 26 (the cantilever part of the workpiece 26) is also included. Located below the L-shaped lifting frame 8, when the workpiece 26 to be bent on the strip moves to the lower bending die 2, it drives the upper die base 13 and the lower die base 1 to close. During the gradual closing process of the upper die base 13 and the lower die base 1, the pressure plate 15 first presses the head of the strip onto the first lifting plate 3. At this time, the bottom end of the fourth nitrogen spring 17 abuts against the second lifting plate 6. Since the elastic force of the third nitrogen spring 14 is greater than that of the first nitrogen spring 4, and the elastic force of the fourth nitrogen spring 17 is greater than that of the second nitrogen spring 5, the downward-moving pressure plate 15 moves down, the first lifting plate 3 moves down and compresses the first nitrogen spring 4, causing the first lifting plate 3 to drive the head of the strip to move down, thereby causing the tail 27 of the workpiece 26 on the strip to bend during the bending process. The fourth nitrogen spring 17, which tilts upward and moves downward within the space 18, presses down on the second lifting plate 6, causing the slider 7 to move downward. When the slider 7 moves downward to the sliding inclined surface 9 and sliding guide inclined surface 12, the horizontal nitrogen spring 10 gradually extends and drives the slider 7 and the L-shaped lifting frame 8 to move horizontally away from the lower bending forming die 2 (moving horizontally outward). This allows the slider 7 and the L-shaped lifting frame 8 to move downward while simultaneously moving horizontally closer to the drive block 11. When the workpiece 26 on the strip tilts upward, it will not collide with or interfere with the L-shaped lifting frame 8. When the first lifting plate 3 and the second lifting plate 6 descend to their lowest positions, the upper die base 13 continues to descend, the pressure plate 15 compresses the third nitrogen spring 14, the fourth nitrogen spring 17 is compressed, and the upper bending forming die 16 follows. The upper die holder 13 descends and engages with the lower bending die 2 to bend the workpiece 26 to bend the workpiece 26. After the workpiece 26 is bent, the tail 27 of the workpiece 26 remains in an upward-curved state. Then, the upper die holder 13 is driven to open with the lower die holder 1. The upper die holder 13 and the lower die holder 1 gradually open, and the third nitrogen spring 14 and the fourth nitrogen spring 17 gradually extend. After the third nitrogen spring 14 and the fourth nitrogen spring 17 are fully extended, the first nitrogen spring 4 and the second nitrogen spring 5 gradually extend, and the first lifting plate 3 and the second lifting plate 6 gradually move upward. The first lifting plate 3 lifts the head of the strip. As the slider 7 gradually moves upward, under the sliding engagement of the sliding inclined surface 9 of the slider 7 and the sliding guide inclined surface 12 of the drive block 11,The slider 7 drives the L-shaped lifting frame 8 to gradually move horizontally (inward) towards the lower bending forming mold 2. The horizontal nitrogen spring 10 is gradually compressed, causing the slider 7 and the L-shaped lifting frame 8 to rise and move horizontally towards the lower bending forming mold 2. Since the tail 27 of the bent workpiece 26 has been raised to the top of the L-shaped lifting frame 8, as the L-shaped lifting frame 8 moves upward and horizontally, it supports and lifts the tail 27 of the bent workpiece 26. This allows both ends of the bent workpiece 26 on the strip to be lifted by the first lifting plate 3 and the L-shaped lifting frame 8, respectively. Then, the strip can be fed horizontally along the first lifting plate 3 and the L-shaped lifting frame 8. The L-shaped lifting frame 8 of this invention can stably lift and support the tail 27 of the bent workpiece 26, preventing the tail 27 of the bent workpiece 26 from shaking. Furthermore, the tail 27 of the workpiece 26 will not collide with the L-shaped lifting frame 8 during the upward lifting process, thus preventing damage and deformation to the tail 27 of the workpiece 26 and ensuring the quality of the bent workpiece 26.

[0022] In this embodiment, a sliding vertical surface 19 is provided on one side of the slider 7, which connects to the bottom end of the sliding inclined surface 9, and a vertical guide surface 20 is provided on one side of the drive block 11, which connects to the bottom end of the sliding guide inclined surface 12. The sliding vertical surface 19 is used to slide in cooperation with the vertical guide surface 20. During the relative sliding process between the sliding vertical surface 19 of the slider 7 and the vertical guide surface 20 of the drive block 11, the slider 7 and the L-shaped lifting frame 8 will not move horizontally, but only vertically. That is, the L-shaped lifting frame 8 moves horizontally outward to its limit position, and the L-shaped lifting frame 8 will not collide with the tail 27 of the upward-curved workpiece 26.

[0023] In this embodiment, the hollow pressure plate 15 has a through hole, and the upper bending forming die 16 is correspondingly arranged with the through hole and can pass through the through hole. When the pressure plate 15 compresses the third nitrogen spring 14, the upper bending forming die 16 gradually extends out of the through hole and cooperates with the lower bending forming die 2 to bend and form the bending part 28 of the workpiece 26.

[0024] In this embodiment, the top surface of the lower bending forming die 2 is provided with a bending slope 21. During the process of the material head of the pressure plate 15 and the first lifting plate 3 moving downward, the bending slope 21 can cause the workpiece 26 on the material belt to flip, so that the part 28 to be bent and formed of the workpiece 26 fits with the bending slope 21. Then, the upper bending forming die 16 and the bending slope 21 on the lower bending forming die 2 cooperate to bend and form the part 28 to be bent and formed of the workpiece 26.

[0025] In this embodiment, the upper mold base 13 is provided with guide pillars 22, and the lower mold base 1 is provided with guide holes 23. The guide pillars 22 and guide holes 23 are slidably engaged. When the upper mold base 13 and the lower mold base 1 open and close, the guide pillars 22 and guide holes 23 are slidably engaged, which improves the stability and closing accuracy of the upper mold base 13 and the lower mold base 1 during the opening and closing of the mold.

[0026] In this embodiment, a contact surface 24 is provided on one side of the drive block 11. The contact surface 24 is connected to the top end of the sliding guide slope 12, and the contact surface 24 is used to slide against the sliding vertical surface 19. When the second nitrogen spring 5 is in the extended state, the sliding vertical surface abuts against the contact surface 24, and at this time the horizontal nitrogen spring 10 is in the compressed state.

[0027] In this embodiment, a stop block 25 is provided on the side of the second lifting plate 6 away from the driving block 11. The stop block 25 is used to block the side of the slider 7 away from the sliding guide slope 12. The slider 7 is horizontally slidably disposed between the stop block 25 and the driving block 11. The stop block 25 can prevent the slider 7 from disengaging from the second lifting plate 6.

[0028] In this embodiment, a limiting block is provided on the top of the drive block 11, which is used to abut against the top surface of the second lifting plate 6. When the second nitrogen spring 5 is in the extended state, the limiting block abuts against the second lifting plate 6 to limit the second lifting plate 6, at which time the second lifting plate 6 is in the highest position.

[0029] In this embodiment, the second lifting plate 6 is provided with a guide rail, and the slider 7 is provided with a guide block, which is slidably connected to the guide rail. During the horizontal movement of the slider 7, the guide block and the guide rail slide together to improve the stability of the horizontal movement of the slider 7.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A progressive die bending forming material lifting anti-shaking device, characterized in that: Includes a lower die base (1), a lower bending forming die (2) mounted on the lower die base (1), a first lifting plate (3) lifted and lowered on one side of the lower bending forming die (2), a first nitrogen spring (4) mounted on the lower die base (1), a second nitrogen spring (5) mounted on the lower die base (1) and located on the side of the lower bending forming die (2) away from the first lifting plate (3), a second lifting plate (6) mounted on the top of the second nitrogen spring (5), a slider (7) horizontally slidably connected to the second lifting plate (6), and a slider (7) located near the lower bending die (2). The L-shaped lifting frame (8) on one side of the bending die (2), the sliding inclined surface (9) on the other side of the slider (7), the horizontal nitrogen spring (10) on the second lifting plate (6), the drive block (11) installed on the lower die base (1) and located on the side of the slider (7) away from the L-shaped lifting frame (8), the sliding guide inclined surface (12) on one side of the drive block (11) and slidingly engaged with the sliding inclined surface (9), the upper die base (13) which is lifted and lowered above the lower die base (1), and the third nitrogen spring installed on the upper die base (13). The system includes a spring (14), a pressure plate (15) mounted at the bottom of the third nitrogen spring (14) and located below the upper mold base (13), an upper bending forming die (16) mounted on the bottom surface of the upper mold base (13) and used to cooperate with the lower bending forming die (2), and a fourth nitrogen spring (17) mounted on the bottom surface of the upper mold base (13) and used to abut against the second lifting plate (6). The pressure plate (15) is arranged opposite to the first lifting plate (3) and located above the first lifting plate (3). The first lifting plate (3) is mounted on the top of the first nitrogen spring (4). The slider (7) is elastically connected to the second lifting plate (6) via a horizontal nitrogen spring (10). There is a bending and forming lifting space (18) between the second lifting plate (6) and the lower bending forming die (2). The elastic force of the third nitrogen spring (14) is greater than that of the first nitrogen spring (4), and the elastic force of the fourth nitrogen spring (17) is greater than that of the second nitrogen spring (5). Under normal conditions, the horizontal nitrogen spring (10) applies an elastic force toward the drive block (11) to the slider (7), and the pressure plate (15) extends to the bottom of the upper bending forming die (16).

2. The anti-shaking device for bending and forming of progressive dies according to claim 1, characterized in that: The slider (7) has a sliding vertical surface (19) on one side that connects to the bottom end of the sliding inclined surface (9), and the drive block (11) has a vertical guide surface (20) on one side that connects to the bottom end of the sliding guide inclined surface (12). The sliding vertical surface (19) is used to slide in cooperation with the vertical guide surface (20).

3. The anti-shaking device for bending and forming of progressive dies according to claim 1, characterized in that: The hollow spacer plate (15) has a through hole, and the upper bending forming die (16) is set to correspond to the through hole and can pass through the through hole.

4. The anti-shaking device for bending and forming of progressive dies according to claim 1, characterized in that: The top surface of the lower bending forming die (2) is provided with a bending slope (21).

5. The anti-shaking device for bending and forming of progressive dies according to claim 1, characterized in that: The upper mold base (13) is provided with guide post (22), and the lower mold base (1) is provided with guide hole (23). The guide post (22) and the guide hole (23) are in sliding fit.

6. The anti-shaking device for bending and forming of progressive dies according to claim 2, characterized in that: A contact surface (24) is provided on one side of the drive block (11). The contact surface (24) is connected to the top of the sliding guide slope (12). The contact surface (24) is used to slide against the sliding vertical surface (19).

7. The anti-shaking device for bending and forming of progressive dies according to claim 6, characterized in that: The second lifting plate (6) is provided with a stop block (25) on the side away from the drive block (11). The stop block (25) is used to block the slider (7) from the side away from the sliding guide slope (12). The slider (7) is horizontally slidably disposed between the stop block (25) and the drive block (11).

8. The anti-shaking device for bending and forming of progressive dies according to claim 1, characterized in that: A limit block is provided on the top of the drive block (11), which is used to abut against the top surface of the second lifting plate (6).

9. The anti-shaking device for bending and forming of progressive dies according to claim 1, characterized in that: The second lifting plate (6) is equipped with a guide rail, and the slider (7) is equipped with a guide block, which is slidably connected to the guide rail.

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