A double-station off-line die-changing wallboard profiling device

Abstract

This utility model discloses a dual-station offline mold-changing wall panel forming device, relating to the field of wall panel forming technology. It includes a frame with an internal mounting cavity. A first lower mold assembly and a second lower mold assembly are stacked sequentially from top to bottom within the mounting cavity. The first lower mold assembly is slidably and rotatably connected to the frame, and can be pulled out of the mounting cavity horizontally and rotated downwards around its inner end to avoid the stamping station. The second lower mold assembly is slidably connected to the frame vertically. A lifting drive assembly is located below the second lower mold assembly to drive it to rise to the stamping station to take over the operation. In this utility model, the first lower mold assembly and the second lower mold assembly are stacked sequentially from top to bottom within the mounting cavity of the frame. During normal stamping, the first lower mold assembly (or the second lower mold assembly) is in the stamping station to perform the operation.

Description

Technical Field

[0001] This utility model relates to the field of wall panel forming technology, specifically a wall panel forming device with dual-station offline mold changing. Background Technology

[0002] In the metal panel forming process, the lower die directly bears the impact of stamping and shearing wear, resulting in a much shorter service life than the upper die. Frequent downtime for replacement or maintenance is required, which is the core bottleneck restricting the production efficiency of the panel forming production line. Existing panel forming equipment generally suffers from the following defects: 1. Most existing wall panel forming devices only have a single set of lower molds. After the lower mold wears out, the entire mold needs to be disassembled and removed from the press worktable before a new mold is installed. The equipment is completely shut down during the entire process.

[0003] 2. In some existing lower die structures with quick die-changing functions, the guide and sliding components used for die-changing operations still bear the stamping load during stamping operations. This causes the guide mechanism to be subjected to impact and shear forces for a long time, making it prone to deformation and jamming. This not only affects the smoothness of die-changing but also reduces the stability and reliability of load-bearing. The load-bearing and die-changing functions are not decoupled, resulting in a bulky overall structure and high maintenance costs.

[0004] 3. The stamping station of panel forming equipment is usually surrounded by components such as upper dies, pressure heads, and feeding mechanisms. When operators directly disassemble and assemble dies at the stamping station, the space for movement is limited, and there is a safety hazard of accidentally triggering the power. Although some equipment has protective structures, the linkage between protection and die changing actions is poor, making it difficult to balance ease of operation and safety. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a dual-station offline mold-changing wall panel forming device, which solves the technical problems of existing devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A dual-station offline mold-changing wall panel forming device includes a frame with an installation cavity inside. A first lower mold assembly and a second lower mold assembly are stacked sequentially from top to bottom within the installation cavity. The first lower mold assembly is slidably and rotatably connected to the frame, and can be pulled out of the installation cavity horizontally and rotated downwards around its inner end to avoid the stamping station. The second lower mold assembly is slidably connected to the frame vertically. A lifting drive assembly is located below the second lower mold assembly to drive it to the stamping station to take over the operation. A load-bearing support assembly is also located below the second lower mold assembly to bear the stamping load of the second lower mold assembly during stamping operations. A protective baffle is hinged to the side wall of the frame on the side of the installation cavity opening.

[0007] Preferably, the two opposite side walls of the mounting cavity are provided with lifting guide grooves, which are divided into an upper guide groove and a lower guide groove from top to bottom; the edge of the upper guide groove is provided with an impact bearing groove, and the impact bearing groove and the upper guide groove form a stepped bearing structure.

[0008] Preferably, the first lower die assembly includes a first lower die body, and a punching slider and a first guide shaft are fixedly installed on both side walls along the length of the first lower die body; the punching slider is slidably adapted to the impact bearing groove to bear the punching load; the first guide shaft is slidably adapted to the upper guide groove and is located at the end of the first lower die body away from the opening of the mounting cavity.

[0009] Preferably, the upper ends of the two side walls along the length of the first lower die body are provided with station positioning grooves, and the side walls of the mounting cavity are slidably connected with station positioning pins. The station positioning pins are inserted and matched with the station positioning grooves to lock the stamping working position of the first lower die assembly.

[0010] Preferably, the second lower die assembly includes a second lower die body and a lifting support; a second guide shaft is fixedly installed on both side walls along the length of the second lower die body, and the second guide shaft is slidably adapted to the lower guide groove; the lifting support is sleeved on the outside of the second lower die body, and a receiving groove is provided on the upper wall of the lifting support, and the second lower die body is slidably adapted to the receiving groove; a clearance waist-shaped groove is provided on both side walls of the lifting support, and the end of the clearance waist-shaped groove facing the opening of the mounting cavity is open; when the first lower die body and the second lower die body rotate downward to the position of avoiding the stamping station, a flip positioning hole is provided on the surface facing the bottom wall of the mounting cavity; a telescopic positioning pin is slidably connected to the bottom wall of the mounting cavity, and the telescopic positioning pin can be inserted and adapted to the flip positioning hole to lock the flip state of the corresponding lower die body.

[0011] Preferably, the lifting drive assembly includes a lifting guide seat and a drive wedge; the lifting guide seat is fixedly installed on the lower wall of the lifting support, and a drive inclined surface is provided on the bottom surface inside the lifting guide seat; the drive wedge is slidably connected to the bottom wall of the mounting cavity and driven by a screw guide mechanism, and the inclined surface of the drive wedge slides and adapts to the drive inclined surface; the outer wall of the lifting guide seat is provided with symmetrically arranged support grooves, which correspond to and cooperate with the load-bearing support assembly to jointly bear the stamping load.

[0012] Preferably, the load-bearing support assembly includes a bidirectional drive screw and two support brackets; the bidirectional drive screw is rotatably connected to the inside of the bottom wall of the frame, and the two support brackets are screwed onto the bidirectional drive screw and can move towards or away from each other as the screw rotates; the bottom wall of the frame is provided with a bracket guide groove, and the support brackets slide and adapt to the bracket guide groove; the support brackets and the support grooves are correspondingly matched to bear the stamping load.

[0013] This utility model provides a dual-station offline mold-changing wall panel forming device, which has the following beneficial effects: 1. This utility model features a first lower die assembly and a second lower die assembly stacked sequentially from top to bottom within the mounting cavity of the frame. During normal stamping, the first lower die assembly (or the second lower die assembly) is positioned at the stamping station to perform the work. When the lower die assembly at the station is worn and needs replacement, it can be pulled out of the mounting cavity horizontally and flipped downwards to a clearance position, freeing up the stamping station. The other lower die assembly is then driven upwards by the lifting drive assembly to the stamping station to take over the work. The replaced lower die assembly is replaced or repaired offline at the flipped clearance position, without occupying the stamping station throughout the process. Stamping operations can be resumed in a very short time, effectively solving the problem of complete production stoppage during die replacement for a single set of lower die equipment, and significantly improving the overall capacity and equipment utilization rate of the panel forming production line.

[0014] 2. This utility model achieves dedicated bearing of stamping load through independently set load-bearing support components. Taking the second lower die assembly as an example, after it rises to the stamping station, the bidirectional drive screw drives the two support brackets to move towards each other to the support groove of the lifting support; during the stamping operation, all stamping loads are transmitted to the support brackets through the support groove, and then directly borne by the frame body. The lifting drive assembly is completely unloaded during the stamping operation, free from stamping impact and shearing force, effectively protecting precision transmission components such as screw guide rails, and avoiding the deformation and jamming problem caused by the long-term bearing of stamping loads by the die-changing guide components in the prior art. At the same time, the first lower die assembly bears the stamping load through the independent punching slider and the stepped surface of the impact bearing groove. The first guide shaft (10) used for pulling and flipping only plays a guiding and rotating role and does not participate in load bearing. The load bearing and die-changing functions are also separated. The above-mentioned dual decoupling design makes the overall structure simpler and the division of labor of each component clear, significantly improving the load bearing reliability and service life of the device.

[0015] 3. This utility model locks the stamping work position by inserting the work position positioning pin into the work position positioning slot and locking the flipping avoidance state by inserting the telescopic positioning pin into the flipping positioning hole. This achieves a double reliable locking of the work position and the avoidance position, ensuring that the lower die does not move during stamping operations and does not shake during offline die changing. At the same time, the side wall of the frame located on the side of the cavity (2) opening is hinged with a protective baffle. During die changing operations, it can be rotated to the cavity opening to block the stamping area, forming a physical isolation barrier between the operator and the stamping work position, effectively preventing safety accidents caused by accidental contact with the power source. The combined actions of pulling, flipping, and lifting allow the operator to complete all die changing steps in the open space in front of the cavity without having to enter the stamping work position, which reduces the difficulty of operation and ensures the safety of operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model in one state; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the second state structure of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the present invention in two states; Figure 6 This is a schematic diagram of the internal structure of the mounting cavity of this utility model; Figure 7 for Figure 6 A magnified view of a section at point A in the middle; Figure 8 This is a schematic diagram of the structure of the first lower mold body of this utility model; Figure 9 This is a schematic diagram of the connection structure between the second lower mold body, the lifting support, and the lifting guide of this utility model; Figure 10 This is a schematic diagram of the connection structure between the bidirectional drive screw and the support bracket of this utility model.

[0017] In the diagram: 1. Frame; 2. Mounting cavity; 3. Protective baffle; 4. Lifting guide groove; 5. Upper guide groove; 6. Lower guide groove; 7. Impact bearing groove; 8. First lower die body; 9. Impact-bearing slider; 10. First guide shaft; 11. Station positioning groove; 12. Station positioning pin; 13. Second lower die body; 14. Lifting support; 15. Second guide shaft; 16. Receiving groove; 17. Clearance groove; 18. Flip positioning hole; 19. Telescopic positioning pin; 20. Lifting guide seat; 21. Drive inclined surface; 22. Drive wedge; 23. Support groove; 24. Bidirectional drive screw; 25. Support bracket; 26. Bracket guide groove. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] like Figure 1-10 As shown, this utility model discloses a dual-station offline mold-changing wall panel forming device, including a vertical frame structure frame 1 with a front-opening mounting cavity 2 inside the frame 1. A first lower mold assembly and a second lower mold assembly are stacked sequentially from top to bottom inside the mounting cavity 2. The two sets of lower mold assemblies alternately perform the stamping operation, realizing offline mold changing and reducing equipment downtime. A protective baffle 3 is hinged to the side wall of the frame 1 on the open side of the mounting cavity 2. During mold changing operations, it can be rotated to the cavity opening to block the stamping area, isolating operators from the stamping station and ensuring operational safety.

[0020] The left and right side walls opposite to the mounting cavity 2 are each provided with a lifting guide groove 4 extending along the height direction. The lifting guide groove 4 is divided into an upper guide groove 5 and a lower guide groove 6 from top to bottom. The two grooves have the same width and are smoothly connected. The edge of the upper guide groove 5 is also provided with an impact bearing groove 7. The width of the impact bearing groove 7 is greater than that of the upper guide groove 5. The two form a stepped bearing structure to directly bear the stamping load. The bottom end of the lifting guide groove 4 is lower than the bottom end of the lower guide groove 6, forming a recessed avoidance section to limit the lowest position of the second lower die body 13.

[0021] The first lower die assembly includes a first lower die body 8, which is a long strip structure arranged along the front-to-back direction of the cavity. A punching slider 9 and a first guide shaft 10 are fixedly installed on the left and right side walls along the length of the first lower die body 8. The punching slider 9 is slidably fitted with the impact bearing groove 7 and is embedded in the groove during stamping operations, with the stepped surface bearing all the stamping load. The first guide shaft 10 is slidably fitted with the upper guide waist groove 5 and is located at the inner (rear) end of the first lower die body 8, serving as both a guide for the pulling motion and a pivot for the flipping motion. The first lower die body 8 can be horizontally pulled forward along the upper guide waist groove 5 to install the cavity 2. After being pulled out until the first guide shaft 10 abuts against the outer end of the upper guide waist groove 5, it can be flipped downwards around the first guide shaft 10 to clear the stamping station above, allowing the second lower die assembly to rise and take over the operation.

[0022] The upper ends of the two side walls of the first lower die body 8 along the length direction are provided with station positioning grooves 11. The corresponding positions of the side walls of the mounting cavity 2 are slidably connected with station positioning pins 12. The station positioning pins 12 are inserted into and matched with the station positioning grooves 11. When the first lower die assembly is in the stamping working position, the station positioning pins 12 can be inserted into the station positioning grooves 11 using any of the existing driving methods to lock its horizontal position and prevent movement during stamping.

[0023] The second lower mold assembly includes a second lower mold body 13 and a lifting support 14. Second guide shafts 15 are fixedly installed on the left and right side walls of the second lower mold body 13, and the second guide shafts 15 are slidably adapted to the lower guide groove 6. The second lower mold body 13 can also be pulled forward along the lower guide groove 6 and rotated around the end to realize offline mold changing.

[0024] The lifting support 14 is sleeved on the outside of the second lower mold body 13. A receiving groove 16 is provided in the center of the upper wall of the lifting support 14. The second lower mold body 13 is slidably adapted to the receiving groove 16 and can be pulled horizontally along the groove. The left and right side walls of the lifting support 14 are provided with clearance waist-shaped grooves 17. The end of the clearance waist-shaped groove 17 facing the cavity opening is an open structure, allowing the second guide shaft 15 to slide out together with the second lower mold body 13 without interfering with the pulling and flipping action of the second lower mold body 13.

[0025] When the first lower die body 8 and the second lower die body 13 rotate downward to the position to avoid the stamping station, flip positioning holes 18 are opened on the surface facing the bottom wall of the mounting cavity 2. The bottom wall of the mounting cavity 2 is slidably connected with a telescopic positioning pin 19. The telescopic positioning pin 19 can be driven by any of the existing technologies to extend and retract in the vertical direction. It can be plugged into the flip positioning hole 18 to lock the flip state of the corresponding lower die body and ensure the stability of the position during offline die changing operations.

[0026] A lifting drive assembly, including a lifting guide 20 and a drive wedge 22, is provided below the second lower die assembly. The lifting guide 20 is fixedly installed on the lower wall of the lifting support 14, and a drive inclined surface 21 is provided on the bottom surface inside the lifting guide 20. The drive wedge 22 is slidably connected to the bottom wall of the mounting cavity 2 and is driven to move horizontally by a screw guide mechanism. The upper inclined surface of the drive wedge 22 slides against the drive inclined surface 21. When the drive wedge 22 moves horizontally, it drives the lifting support 14 and the second lower die body 13 to rise and fall as a whole through the inclined surface transmission. Symmetrically arranged support grooves 23 are provided on the left and right outer walls of the lifting guide 20. The support grooves 23 cooperate with the load-bearing support assembly to jointly bear the stamping load.

[0027] Below the second lower mold assembly, a load-bearing support assembly is also provided, including a bidirectional drive screw 24 and two support brackets 25. The bidirectional drive screw 24 is rotatably connected to the inside of the bottom wall of the frame 1 and is arranged in the left-right direction; the two support brackets 25 are respectively screwed onto the two reverse threads of the bidirectional drive screw 24 and can move towards or away from each other as the screw rotates. The bottom wall of the frame 1 has a bracket guide groove 26 extending in the left-right direction, and the support brackets 25 slide and adapt to the bracket guide groove 26 to ensure smooth movement.

[0028] When the second lower die assembly rises to the stamping station, the bidirectional drive screw 24 rotates, causing the two support brackets 25 to move towards each other and extend into the support groove 23 directly below. During the stamping operation, the load is transmitted to the support brackets 25 through the support groove 23 and then borne by the frame 1 body. The lifting drive assembly is completely unloaded and protected from the impact of stamping, effectively protecting the precision transmission components.

[0029] Specifically: 1. Normal stamping operation status In the initial state, the first lower die assembly is in the upper stamping station, the punching slide 9 is embedded in the impact bearing groove 7, and the station positioning pin 12 is inserted into the station positioning groove 11 to lock the position. The stamping load is directly borne by the punching slide 9 and the stepped surface of the frame. The second lower die assembly is in the lower standby position and is supported by the lifting support 14. The protective baffle 3 is flipped and stored, and the equipment performs the wall panel forming operation normally.

[0030] 2. Offline replacement of the first lower mold body When the first lower die body 8 is worn and needs to be replaced or repaired, the equipment is briefly stopped and the protective baffle 3 is rotated to block the stamping operation area.

[0031] First, the station positioning pin 12 retracts, releasing the horizontal lock on the first lower mold body 8. The operator then pulls the first lower mold body 8 forward along the upper guide groove 5, causing the impact slider 9 to disengage from the impact bearing groove 7, until the first guide shaft 10 abuts against the outer end of the upper guide groove 5. Next, the first lower mold body 8 is rotated downwards by 90° around the first guide shaft 10, aligning the rotating positioning hole 18 on its end face with the telescopic positioning pin 19 on the bottom wall of the mounting cavity 2. The telescopic positioning pin 19 is then inserted upwards into the rotating positioning hole 18, locking the first lower mold body 8 into its rotating and abutting state.

[0032] After the first lower die body 8 is in place, the screw guide mechanism is activated, causing the drive wedge 22 to move forward. Through the inclined plane transmission, the lifting support 14 and the second lower die body 13 are pushed up until the second guide shaft 15 abuts against the top of the lifting guide groove 4, and the second lower die body 13 reaches the stamping station.

[0033] Subsequently, the bidirectional drive screw 24 starts, driving the two support brackets 25 to move towards each other to directly below the support groove 23; the drive wedge block 22 retracts slightly to unload, causing the top surface of the support groove 23 to abut against the support bracket 25, completing the transfer of the stamping load. At this point, the machine can be restarted, with the second lower die body 13 taking over the stamping operation. The operator can perform offline replacement or maintenance of the first lower die body 8 at the flipping station without continuously occupying the stamping station, significantly reducing downtime.

[0034] 3. Offline replacement of the second lower mold body When the second lower mold body 13 needs to be replaced or repaired, the equipment will be temporarily shut down.

[0035] First, the bidirectional drive screw 24 rotates in the opposite direction, causing the two support brackets 25 to move in opposite directions and exit below the support groove 23, thus releasing the load-bearing support; then the drive wedge block 22 moves backward, causing the lifting support 14 and the second lower mold body 13 to descend synchronously, and the second guide shaft 15 falls back to the position corresponding to the lower guide groove 6, freeing up the upper clearance space.

[0036] After the second lower die body 13 descends to its position, the telescopic positioning pin 19 retracts, releasing the flipping lock on the first lower die body 8; the first lower die body 8 is flipped upward around the first guide shaft 10 to reset to a horizontal state, and then pushed backward into the mounting cavity 2. The punching slider 9 is re-embedded into the impact bearing groove 7, and the station positioning pin 12 extends and inserts into the station positioning groove 11, completing the reset and locking of the upper die and restoring the stamping operation capability of the first lower die.

[0037] At this time, the pulling path of the second lower mold body 13 is unobstructed. The operator can pull it forward along the lower guide groove 6 and flip it downward around the second guide shaft 15. Similarly, the flip state is locked by the telescopic positioning pin 19 and the flip positioning hole 18 for offline replacement and maintenance. After the replacement is completed, it can be reset. The upper mold can quickly resume production throughout the process with very short downtime.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-station off-line die-changing wallboard profiling device comprising a frame (1), characterized in that, The frame (1) has an installation cavity (2) inside, and the first lower mold assembly and the second lower mold assembly are stacked in the installation cavity (2) from top to bottom; The first lower mold assembly is slidably and rotatably connected to the frame (1), and can be pulled out of the mounting cavity (2) in the horizontal direction, and can rotate downward around its inner end to avoid the stamping station; The second lower die assembly is slidably connected to the frame (1) in the vertical direction. A lifting drive assembly is provided below the second lower die assembly to drive the second lower die assembly to rise to the stamping station to take over the operation. A load-bearing support component is also provided below the second lower die assembly. During the stamping operation, the load-bearing support component bears the stamping load of the second lower die assembly. The frame (1) has a protective baffle (3) hinged to the side wall of the mounting cavity (2) on the side of the opening.

2. The double station off-line die changing wallboard press according to claim 1, wherein, The mounting cavity (2) has lifting guide grooves (4) on both sides of its opposite sides. The lifting guide grooves (4) are divided into upper guide grooves (5) and lower guide grooves (6) from top to bottom. The upper guide groove (5) has an impact bearing groove (7) on its edge. The impact bearing groove (7) and the upper guide groove (5) form a stepped bearing structure.

3. The double station off-line die changing wallboard press according to claim 2, wherein, The first lower die assembly includes a first lower die body (8), and a punching slider (9) and a first guide shaft (10) are fixedly installed on both sides of the first lower die body (8) in the length direction. The impact-bearing slider (9) is slidably adapted to the impact bearing groove (7) to bear the impact load; The first guide shaft (10) is slidably adapted to the upper guide groove (5) and is located at the end of the first lower mold body (8) away from the opening of the mounting cavity (2).

4. The double station off-line die changing wallboard press according to claim 3, wherein, The upper ends of the two side walls of the first lower die body (8) in the length direction are provided with station positioning grooves (11), and the side wall of the mounting cavity (2) is slidably connected with a station positioning pin (12). The station positioning pin (12) is inserted and matched with the station positioning groove (11) to lock the stamping working position of the first lower die assembly.

5. The double station off-line die changing wallboard press according to claim 4, wherein, The second lower mold assembly includes a second lower mold body (13) and a lifting support (14). The second guide shaft (15) is fixedly installed on both sides of the second lower mold body (13) along its length direction. The second guide shaft (15) is slidably adapted to the lower guide groove (6). The lifting support (14) is sleeved on the outside of the second lower mold body (13). The upper wall of the lifting support (14) is provided with a receiving groove (16), and the second lower mold body (13) slides and adapts to the receiving groove (16). The two side walls of the lifting support (14) are provided with a clearance waist-shaped groove (17), and the clearance waist-shaped groove (17) is open at one end facing the opening of the mounting cavity (2). When the first lower die body (8) and the second lower die body (13) rotate downward to the position to avoid the stamping station, a flip positioning hole (18) is opened on the surface facing the bottom wall of the mounting cavity (2); a telescopic positioning pin (19) is slidably connected to the bottom wall of the mounting cavity (2), and the telescopic positioning pin (19) can be inserted and matched with the flip positioning hole (18) to lock the flip state of the corresponding lower die body.

6. The double station off-line die changing wallboard press according to claim 5, wherein, The lifting drive assembly includes a lifting guide (20) and a drive wedge (22). The lifting guide (20) is fixedly installed on the lower wall of the lifting support (14), and the bottom surface inside the lifting guide (20) is provided with a driving inclined surface (21). The drive wedge (22) is slidably connected to the bottom wall of the mounting cavity (2) and driven by the screw guide mechanism. The inclined surface of the drive wedge (22) is slidably adapted to the drive inclined surface (21). The outer wall of the lifting guide (20) is provided with symmetrically arranged support grooves (23), which cooperate with the load-bearing support components to jointly bear the stamping load.

7. The double station off-line die changing wallboard press according to claim 6, wherein, The load-bearing support assembly includes a bidirectional drive screw (24) and two support brackets (25). The bidirectional drive screw (24) is rotatably connected to the inside of the bottom wall of the frame (1), and the two support brackets (25) are screwed onto the bidirectional drive screw (24) and can move towards or away from each other as the screw rotates. The bottom wall of the frame (1) is provided with a bracket guide groove (26), and the support bracket (25) slides and adapts to the support guide groove (26); the support bracket (25) and the support groove (23) are correspondingly matched to bear the stamping load.

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