A metal plate bending apparatus

Abstract

This invention discloses a metal sheet bending device, relating to the field of bending machine technology. It includes a frame, on which a hydraulic assembly is mounted. The output end of the hydraulic assembly is connected to a pressing mechanism, and the lower end of the pressing mechanism is fixedly connected to a connecting seat. Multiple continuously arranged mounting plates are detachably connected to the connecting seat. Multiple continuously arranged upper modules are arranged between the mounting plates and the connecting seat. The mounting plates and upper modules are correspondingly arranged. Connectors are provided at both ends of each upper module, and the connectors on adjacent upper modules are interconnected. Connectors are also provided at both ends of the connecting seat, and the connectors on the upper modules closest to the connecting seat are connected to the connectors on the connecting seat. A lower die is also provided on the frame, corresponding to the upper die assembly. The connectors enable rapid assembly and replacement of the upper modules. The length and specifications of the upper die assembly can be flexibly changed according to the specific bending requirements of different metal sheets, expanding the range of sheet materials that the equipment can process. Simultaneously, the connectors improve the connection strength between the upper modules.

Description

Technical Field

[0001] This invention relates to the field of bending machine technology, and in particular to a metal sheet bending device. Background Technology

[0002] In various construction sectors, there is often a need for metal sheets with angles or curves, which are typically processed using bending machines. Due to the diverse specifications of these sheets, existing bending machine dies usually employ a modular assembly method, with the die combination length adjusted according to actual production needs.

[0003] While this modular design can accommodate diverse processing scenarios, it requires multiple fixing devices to position and secure each mold section. When mold replacement is involved, operators must unlock each fixing device one by one to disassemble the old mold and install the new one, which affects the efficiency of tooling changeover to some extent. Furthermore, since the modules are not directly connected, relative misalignment may occur during bending, causing the bending to deviate from a straight line and severely impacting the yield rate. Summary of the Invention

[0004] To improve the connection stability of the assembly and disassembly molds, this application provides a metal sheet bending device.

[0005] The metal sheet bending equipment provided in this application adopts the following technical solution: A metal sheet bending device includes a frame, on which a hydraulic assembly is mounted. The output end of the hydraulic assembly is connected to a pressing mechanism. The lower end of the pressing mechanism is fixedly connected to a connecting seat. Multiple continuously arranged mounting plates are detachably connected to the connecting seat. Multiple continuously arranged upper modules are arranged between the mounting plates and the connecting seat. Each mounting plate corresponds to one of the upper modules. Connectors are provided at both ends of each upper module, and the connectors on adjacent upper modules are interconnected. Connectors are also provided at both ends of the connecting seat, and the connectors on the upper modules closest to the connecting seat are connected to the connectors on the connecting seat. A lower die is also provided on the frame, corresponding to the upper die assembly.

[0006] By adopting the above technical solution, multiple continuous and detachable mounting plates and upper modules are set on the connecting base, enabling rapid assembly and replacement of the upper modules in conjunction with connectors. The length and specifications of the upper mold assembly can be flexibly changed according to the specific bending requirements of different metal sheets. Whether for long or short sheets, a suitable upper mold configuration can be found, greatly expanding the range of sheets that the equipment can process. During long-term use, if a particular upper module shows wear or other issues, it can be replaced individually without replacing the entire assembly. This not only reduces maintenance costs but also minimizes resource waste caused by discarding the entire upper mold assembly due to partial damage.

[0007] Optionally, the connecting seat has a sliding groove, the upper module has a protruding edge that is slidably connected to the sliding groove, the upper module has a mounting groove on the side opposite to the connecting seat, and the mounting plate has a mounting strip that is slidably connected to the mounting groove.

[0008] By adopting the above technical solution, the sliding fit between the sliding groove of the connecting seat and the convex edge of the upper module, and the sliding connection structure between the mounting groove of the upper module and the mounting strip of the mounting plate, make the assembly of the upper module with the connecting seat and the mounting plate extremely simple and quick. Simply align the convex edge of the upper module with the sliding groove of the connecting seat, then align the mounting strip with the mounting groove, and install the mounting plate on the connecting seat to fix the upper module to the connecting seat. Operators can easily complete the assembly or disassembly without complicated installation procedures or professional tools, greatly shortening the equipment adjustment time. The structural matching of the sliding groove and the convex edge provides positioning for the installation position of the upper module, avoiding fit errors between the upper and lower molds caused by assembly deviations, thereby ensuring bending quality.

[0009] Optionally, the connector includes a latch and a latching protrusion. The latching protrusion forms a groove on the side opposite to the latch. The latch is fitted into the groove. The latch and the latching protrusion are respectively disposed at both ends of the upper module. The connector is provided with a latching protrusion and a latch at both ends.

[0010] By adopting the above technical solution, the assembly process is greatly simplified while ensuring the connection strength between upper modules and between upper modules and connecting seats. Operators only need to insert the latch into the groove of the locking tongue protrusion to quickly complete the locking and fixing process, without the need for additional complex tools such as screwdrivers and wrenches. This makes the splicing and fixing of the upper mold assembly highly efficient and convenient. Since the upper mold assembly consists of multiple upper modules, if the upper modules are only individually installed and fixed to the connecting seats, relative deviations may occur between the upper modules during bending, causing them to be out of alignment during bending and stamping, affecting the bending effect. By setting connectors to connect the upper modules and the upper modules to the connecting seats, the overall consistency of the upper mold assembly is improved.

[0011] Optionally, the frame includes a worktable, the lower mold is disposed on one side of the worktable, and a feeding platform is also provided on one side of the worktable. The feeding platform is located on one side of the lower mold, and the upper end of the feeding platform is flush with the upper end of the lower mold.

[0012] By adopting the above technical solution, the upper end of the feeding platform is flush with the upper end of the lower die, creating a smooth transition path for conveying metal sheets. The sheet can slide smoothly from the feeding platform into the working area of ​​the lower die, avoiding jamming, warping, or positional displacement caused by height differences. For long sheets, the feeding platform can provide sufficient support to prevent deformation due to excessive cantilever length, ensuring the flatness of the sheet before bending and laying the foundation for subsequent precise bending.

[0013] Optionally, a limiting block is provided on the side of the worktable away from the feeding platform. The limiting block is connected to a first driving component, which drives the limiting block to reciprocate closer to or further away from the lower mold.

[0014] By adopting the above technical solution, the limiting block on the side of the worktable away from the feeding platform is connected to the first driving component, and can move closer to or further away from the lower die under drive. This design can flexibly adjust the distance between the limiting block and the lower die according to the bending position requirements of different sheet materials, forming a reliable barrier on the edge of the sheet material and ensuring consistent positioning of the sheet material during bending; especially in batch processing, it can effectively ensure the uniformity of the bending position of each product and improve product consistency.

[0015] Optionally, the worktable is provided with a buffer groove, the lower mold includes a mold body and a connecting part, the connecting part is partially disposed in the buffer groove, a spring is disposed in the buffer groove, the two ends of the spring are respectively connected to the bottom surface of the buffer groove and the bottom of the connecting part, and there is a pressing space between the mold body and the worktable; it also includes a lifting mechanism disposed at the bottom of the feeding platform, the lifting mechanism drives the feeding platform to move up and down reciprocally, the feeding platform has at least a first position and a second position, when the feeding platform is in the first position, the upper surface of the feeding platform is aligned with the upper end of the mold body, when the feeding platform is in the second position, the upper surface of the feeding platform is aligned with the upper surface of the worktable at the pressing space.

[0016] By adopting the above technical solution, the connecting part of the lower die is placed in the buffer groove and connected to the spring. The spring can be compressed when the upper die is pressed down, absorbing part of the impact force, buffering the bending process, and reducing the overall stress on the equipment. The pressing space between the die body and the worktable provides operating space for the sheet metal pressing process. After the sheet metal is bent, the bent part can be placed in the pressing space for pressing. The lifting mechanism at the bottom of the feeding platform can drive the feeding platform to switch between the first position and the second position. In the first position, the feeding platform is flush with the upper end of the die body, and the bending operation can be performed. In the second position, the feeding platform is flush with the worktable surface at the pressing space, and the pressing process can be performed. Switching the feeding platform between the first and second positions allows the equipment to complete the bending and pressing processes on the same machine, improving process compatibility and increasing production efficiency.

[0017] Optionally, the lifting mechanism includes a first lifting component and a second lifting component. The first lifting component is hinged to the bottom of the feeding platform on the side closer to the lower mold, and the second lifting component is hinged to the bottom of the feeding platform on the side away from the lower mold.

[0018] By adopting the above technical solution, the lifting mechanism consists of first and second lifting components hinged to the bottom of both sides of the feeding platform. By controlling the movement of the lifting mechanisms on both sides, the overall lifting or tilting angle adjustment of the feeding platform can be achieved. By tilting the feeding platform, the end of the feeding platform near the lower die is aligned with the pressing space, allowing the bent end of the sheet metal to move easily into the pressing space.

[0019] Optionally, the upper surface of the feeding platform is provided with a pushing component, which includes a second driving component and a pushing member. The second driving component drives the pushing member to reciprocate closer to or further away from the lower die.

[0020] By adopting the above technical solution, the pushing component on the feeding platform is driven by the second drive component to move the pushing part, which can automatically push the sheet from the feeding platform to the bending station. This automated pushing method reduces manual intervention and labor intensity; at the same time, the pushing part moves along a fixed trajectory, which can ensure the straightness of the sheet during the pushing process, avoid the sheet from shifting due to uneven force during manual pushing, and improve the positioning accuracy of the sheet when entering the lower mold.

[0021] Optionally, the upper surface of the feeding platform is recessed with a discharge groove, and a discharge component is provided in the discharge groove. The discharge component includes a third driving component and an electromagnet block. The third driving component drives the electromagnet block to reciprocate within the discharge groove, moving closer to or further away from the lower mold.

[0022] By adopting the above technical solution, an electromagnet block driven by a third drive component is installed in the discharge chute of the feeding platform. The electromagnet block can magnetically attract metal sheets and push them along the discharge chute. This structure is particularly suitable for thin or easily deformable metal sheets, as magnetic attraction can avoid damage to the sheet caused by mechanical clamping.

[0023] Optionally, the pressing mechanism has a downward-facing push rod on the side near the feeding platform. The push rod is telescopic, and when extended, its lower end abuts against the upper surface of the feeding platform.

[0024] By adopting the above technical solution, during the process of the push rod extending and abutting against the surface of the feeding platform, the push rod will first contact the bent sheet material. The extension of the push rod can push the sheet material away from the lower die and allow it to enter the feeding platform, thus completing the unloading of the bent sheet material.

[0025] In summary, this application includes at least one of the following beneficial effects: 1. The equipment adopts a modular upper mold component design. Through the detachable connection of the connecting seat, mounting plate and upper module and the cooperation of the connecting parts, it can not only flexibly change the specifications and length of the upper mold according to the bending requirements of different plates, adapt to a variety of plate sizes and broaden the processing range, but also replace the parts individually when they are worn, reduce maintenance costs, avoid discarding the entire upper mold component due to partial damage, effectively save resources, and improve the flexibility and economy of the equipment.

[0026] 2. The coordination between the edge pressing space and the lifting mechanism of the feeding platform enables the equipment to complete the bending and edge pressing processes on the same machine, reducing errors caused by process turnover, improving process compatibility and production efficiency, and ensuring product quality stability.

[0027] 3. The inclined stepped surface and support surface of the upper mold and connecting seat abut against each other, which helps to evenly distribute stress and avoid problems such as deformation and cracking of components due to stress concentration, thus extending the service life of components and even the entire equipment. At the same time, the tight and reasonable connection and cooperation between the components enhances the rigidity and reliability of the overall structure, enabling it to resist fatigue deformation and maintain a stable working state during long-term repeated bending operations, ensuring the long-term stability of equipment performance.

[0028] 4. The feeding platform's pushing component automates the feeding of sheet metal, replacing manual operation and reducing labor intensity. The electromagnet blocks in the discharge chute can attract thin or easily deformable sheet metal, preventing mechanical damage and ensuring stable discharge. The telescopic pusher rod of the pressing mechanism automatically pushes the bent sheet metal away from the lower die, enabling convenient unloading. These designs optimize the entire process from feeding and processing to discharge, improving equipment automation, reducing manual intervention, and enhancing overall production efficiency and operational safety. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a metal sheet bending device according to an embodiment of this application.

[0030] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0031] Figure 3 This is a partial side view of a metal sheet bending device according to an embodiment of this application.

[0032] Figure 4 This is a front view of a metal sheet bending device according to an embodiment of this application.

[0033] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0034] Figure 6 yes Figure 4A sectional view along AA.

[0035] Figure 7 yes Figure 6 Enlarged view of point C in the middle.

[0036] Figure 8 This is a schematic diagram of the structure of a metal sheet bending device according to an embodiment of this application.

[0037] Figure 8 This is a schematic diagram of the structure of a metal sheet bending device according to an embodiment of this application.

[0038] Figure 9 This is a schematic diagram of the overall structure of a metal sheet bending device according to an embodiment of this application.

[0039] Figure 10 This is a schematic diagram of the overall structure of a metal sheet bending device according to an embodiment of this application.

[0040] Figure 11 This is a schematic diagram of the structure of a metal sheet bending device according to an embodiment of this application.

[0041] Explanation of reference numerals in the attached figures: 1. Frame; 11. Worktable; 1101. Buffer groove; 1102. Pushing groove; 111. Limiting block; 1111. Pushing part; 112. First drive assembly; 113. Lead screw; 12. Baffle; 2. Hydraulic components; 3. Pressing mechanism; 31. Push rod; 4. Connecting seat; 401. Slide groove; 402. Support surface; 5. Mounting plate; 51. Mounting strip; 6. Upper module; 61. Protruding edge; 601. Mounting groove; 602. Stepped surface; 7. Connector; 71. Locking latch; 72. Locking tongue protrusion; 8. Lower mold; 801. V-groove; 802. Blank holder space; 81. Mold body; 82. Connecting part; 83. Spring; 9. Feeding platform; 901. Discharge chute; 91. Lifting mechanism; 911. First lifting assembly; 912. Second lifting assembly; 92. Pushing assembly; 921. Pushing component; 922. Second drive assembly; 93. Discharge assembly; 931. Electromagnetic block; 932. Third drive assembly; Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0043] This application discloses a metal sheet bending device, referring to... Figures 1 to 5The system includes a frame 1, on which a hydraulic assembly 2 is mounted. A pressing mechanism 3 is located at the output end of the hydraulic assembly 2. A connecting seat 4 is fixedly connected to the lower end of the pressing mechanism 3. Multiple upper modules 6 and multiple mounting plates 5 are mounted on the connecting seat 4. Each mounting plate 5 mounts one upper module 6 onto the connecting seat 4. The multiple upper modules 6 are arranged consecutively and abut against each other. A worktable 11 is also provided on the frame 1, located below the pressing mechanism 3. A lower mold 8 is mounted on the worktable 11, corresponding to the upper modules 6. The pressing mechanism 3 is driven by the hydraulic assembly 2, enabling the upper modules 6 on the connecting seat 4 to mate with the lower mold 8. The top of the lower mold 8 has a V-groove 801, and the lower end of the upper module 6 matches the inner wall of the V-groove 801. The sheet material placed on the lower mold 8 is bent and deformed under the pressure of the lower mold 8 and the upper modules 6. Specifically, the mounting plate 5 and the connecting seat 4 are installed using quick-release bolts. The upper module 6 can be selected in length and specifications according to the specific size and bending requirements of the sheet material. Multiple upper modules 6 can be combined to form an upper mold assembly, which can adapt to different sheet material bending requirements and improve the processing range of the equipment. At the same time, the modular upper module 6 is easy to install, and if one of the upper modules 6 is worn, it can be replaced individually, reducing maintenance costs.

[0044] In a preferred embodiment, refer to Figure 2 and 3 The connecting seat 4 has a sliding groove 401. The upper module 6 has a protruding edge 61 on the side near the sliding groove 401, which is slidably engaged within the sliding groove 401. The upper module 6 has an installation groove 601 on the side away from the connecting seat 4. The mounting plate 5 has an installation strip 51 on the side near the upper module 6, which is slidably engaged within the installation groove 601. The sliding groove 401 of the connecting seat 4 and the protruding edge 61 of the upper module 6 are slidably engaged, and the installation strip 51 of the mounting plate 5 is slidably engaged with the installation groove 601 of the upper module. This allows the upper module 6 to be pulled out from between the connecting seat 4 and the mounting plate 5 without removing the mounting plate 5. This assembly structure makes the assembly of the upper module 6, the connecting seat 4, and the mounting plate 5 simple and convenient, allowing operators to easily complete assembly and disassembly. Furthermore, the cooperation of these three components allows the upper module 6 to distribute the force in the vertical direction to the mounting plate 5 and the connecting seat 4 during bending, reducing the stress on the upper module 6 and extending its service life.

[0045] In a preferred embodiment, refer to Figure 4 and 5The upper module 6 and the connecting seat 4 are provided with connecting parts 7, which include a latch 71 and a latching protrusion 72. The latching protrusion 72 forms a groove on the side opposite to the latch 71, and the latch 71 is fitted into the groove. Each upper module 6 has a latch 71 and a latching protrusion 72 at both ends. The latch 71 of one upper module 6 engages with the latching protrusion 72 of another adjacent upper module 6, thereby allowing multiple upper modules 6 to be sequentially connected. The upper mold assembly formed by the combination of multiple upper modules 6 has a latch 71 and a latching protrusion 72 at each end. The connecting seat 4 has a corresponding latching protrusion 72 and a latch 71 at each end. The latch 71 at one end of the upper mold assembly engages with the latching protrusion 72 on the connecting seat 4, and the latching protrusion 72 at the other end engages with the latch 71 on the connecting seat 4, thereby fixing the entire upper mold assembly to both ends of the connecting seat 4. Multiple connectors 7 sequentially connect the upper modules 6 and connect them to the connecting seat 4. Since the upper mold assembly consists of multiple upper modules 6, relative deviations may occur during the bending process, and the bending positions may not be on the same straight line. Connecting the upper modules 6 with each other and with the connecting seat 4 through the connectors 7 improves the overall integrity of the upper mold assembly. The connectors 7 are designed as a latch 71 and a locking tongue protrusion 72, which facilitates the assembly of the upper mold assembly and the connecting seat 4. The operator only needs to insert the latch 71 into the groove of the locking tongue protrusion 72 and pull the handle to quickly complete the assembly of a connector 7 without the need for tools.

[0046] In a preferred embodiment, refer to Figure 2 and 3 The upper die has an upwardly inclined stepped surface 602 recessed on its inner side, and the connecting seat 4 has a supporting surface 402 that abuts against the stepped surface 602. The fit between the stepped surface 602 and the supporting surface 402 significantly increases the force transmission area, evenly distributing the reaction force generated by the sheet metal during bending to the connecting seat 4. This avoids component deformation or cracking caused by localized stress concentration, significantly extending the service life of the structure. The structure also has a positioning function; during installation, the fit between the stepped surface 602 and the supporting surface 402 allows for quick calibration of the upper die angle, reducing the impact of assembly errors on bending accuracy. In long-term use, this fit provides additional support for the upper die, reducing cantilever deflection and resisting fatigue deformation.

[0047] In a preferred embodiment, refer to Figure 6 and 7The workbench 11 is equipped with a buffer groove 1101. The lower mold 8 includes a mold body 81 and a connecting part 82. The connecting part 82 is located within the buffer groove 1101. Multiple sets of springs 83 are vertically arranged within the buffer groove 1101. The upper end of the spring 83 is connected to the bottom of the connecting part 82, and the lower end of the spring 83 is connected to the bottom surface of the buffer groove 1101. A gap exists between the lower mold 8 and the workbench 11 under the support of the springs 83. A pressing space 802 exists between the bottom of the mold body 81 and the edge of the workbench 11 surface. The bent sheet metal can be placed in the pressing space 802. When the upper mold moves downward again to press down on the lower mold 8, the lower mold 8 moves downward, and the height of the pressing space 802 gradually decreases. The bottom of the mold body 81 and the surface of the workbench 11 are further pressed together, causing the sheet metal to be stacked at the bend to form a double-layer structure. After the sheet metal is pressed to a solid edge, a double-layer edge is formed, which has stronger rigidity and better resistance to deformation in the manufactured box and frame structures. At the same time, the bend can prevent the sharp edges of the board from being exposed, reducing the risk of people being cut by the board and providing a certain degree of protection.

[0048] In a preferred embodiment, refer to Figure 1 and 8 The frame 1 includes a worktable 11, with a lower die 8 positioned at one edge of the worktable 11. A feeding platform 9 is located on one side of the lower die 8, with its upper surface flush with the upper end of the lower die 8. The sheet metal can be placed on the feeding platform 9, and the portion to be bent is placed above the V-groove 801. A pushing assembly 92 is provided on the surface of the feeding platform 9. The pushing assembly 92 includes a second drive assembly 922 and a pushing component 921, which is positioned on the feeding platform 9. Specifically, the second drive assembly 922 is a cylinder. The output end of the second drive assembly 922 is connected to the pushing component 921, which moves towards or away from the lower die 8 under the drive of the second drive assembly 922. In this embodiment, two sets of pushing assemblies 92 are arranged in parallel. Of course, in other embodiments, multiple sets of pushing assemblies 92 can be arranged, allowing for simultaneous pushing of the sheet metal. After the sheet is placed on the feeding platform 9, the pusher 921 pushes one end of the sheet into the V-groove 801 under the action of the second drive assembly 922.

[0049] In a preferred embodiment, refer to Figure 7 and 9A limiting block 111 is provided on the worktable 11. The limiting block 111 is located on the side of the lower die 8 away from the feeding platform 9. The limiting block 111 is connected to a first drive assembly 112, which drives the limiting block 111 to move away from or towards the lower die 8. Specifically, the worktable 11 has a recessed push groove 1102 to accommodate the limiting block 111. The upper end of the limiting block 111 extends out of the push groove 1102. The first drive assembly 112 is a motor, and the output end of the motor is connected to a lead screw 113, which is threadedly connected to the lower end of the limiting block 111. The first drive assembly 112 changes the distance between the limiting block 111 and the lower die 8 through the lead screw 113. After the sheet metal is pushed into the bending station, the limiting block 111 blocks the sheet metal, limiting the length of the sheet metal beyond the V-groove 801. Specifically, in this embodiment, three limiting blocks 111 are provided, and three corresponding first driving components 112 are also provided. The three limiting blocks 111 can align and limit the middle and both sides of the plate, preventing insufficient support points from causing the plate to be placed crookedly, and preventing the bending position from not meeting production requirements.

[0050] In a preferred embodiment, refer to Figure 7 The upper end of the limiting block 111 has a pushing part 1111, which extends toward the lower die 8. When the limiting block 111 is located in the push groove 1102 at the position closest to the lower die 8, the pushing part 1111 is located above the V-groove 801. After the sheet metal is bent, the limiting block 111 can move with the lower die 8 and push the sheet metal through the pushing part 1111 to push the sheet metal out of the V-groove 801, thus completing the unloading.

[0051] In a preferred embodiment, refer to Figure 10 The pressing mechanism 3 is inclined downward on the side near the feeding platform 9 and has a push rod 31. The push rod 31 is telescopic. When the push rod 31 is extended, it can press down the part of the plate that is bent and raised, and press the end of the plate away from the lower mold 8 onto the feeding platform 9, so that the bent part of the plate can be separated from the V-groove 801 and the unloading is completed.

[0052] In a preferred embodiment, refer to Figure 10The upper surface of the feeding platform 9 is recessed with a discharge groove 901. The extension direction of the discharge groove 901 is perpendicular to the length direction of the lower mold 8. A third drive component 932 and an electromagnet block 931 are arranged inside the discharge groove 901. Specifically, the third drive component 932 is a cylinder. The third drive component 932 drives the electromagnet block 931 to move away from or towards the lower mold 8 within the discharge groove 901. After the pushing part 1111 of the push rod 31 and the limiting block 111 pushes the plate out of the V-groove 801, the bottom of the plate is attracted by the electromagnet block 931. The third drive component 932 drives the electromagnet block 931 to move away from the lower mold 8, thereby moving the plate away from the lower mold 8 and pulling the bent part of the plate out of the V-groove 801, so that the plate is completely separated from the lower mold 8, completing the unloading. While the feeding component 92 is working, the discharging component 93 can work simultaneously. The electromagnet block 931 can assist the feeding component 92 in pushing the plate towards the lower mold 8.

[0053] In a preferred embodiment, refer to Figure 8 and 11 The bottom of the feeding platform 9 is equipped with a lifting mechanism 91, which can drive the feeding platform 9 to rise and fall. The lifting mechanism 91 includes a first lifting component 911 and a second lifting component 912. The first lifting component 911 is hinged to the bottom of the feeding platform 9 on the side closer to the lower mold 8, and the second lifting component 912 is hinged to the bottom of the feeding platform 9 on the side farther from the lower mold 8. Specifically, both the first lifting component 911 and the second lifting component 912 include two cylinders, and the output ends of the four cylinders are all hinged to the bottom of the feeding platform 9. The lifting mechanism 91 can drive the feeding platform 9 to rise and fall and switch between a first position and a second position. When the feeding platform 9 is in a horizontal state and its upper surface is flush with the upper end of the lower mold 8, the feeding platform 9 is in the first position. When the feeding platform 9 is in a horizontal state and its upper surface is flush with the upper surface of the worktable 11 at the pressing space 802, the feeding platform 9 is in the second position. When the feeding platform 9 is in the first position, the sheet metal can be bent. After bending and unloading, the feeding platform 9 switches to the second position, where the sheet metal can be pressed for a dead edge. In conjunction with the feeding assembly 92, the limiting block 111, and the discharging assembly 93, automated production processes can be achieved, including sheet material feeding, bending, discharging, edge pressing, and unloading. Preferably, refer to... Figure 11 When the feeding platform 9 is in the first position, the first lifting component 911 lifts and lowers, which allows the end of the feeding platform 9 near the lower mold 8 to descend first and align with the pressing space 802. At this time, the pushing component 92 can push the bent part into the pressing space 802 in advance. The inclined feeding platform 9 also facilitates the sliding of the sheet metal on the feeding platform 9.

[0054] In a preferred embodiment, refer to Figure 1The lower mold 8 has vertical baffles 12 at both ends, which extend to cover both ends of the feeding platform 9 and the worktable 11. The baffles 12 can prevent the sheet metal from shifting laterally during the process, reduce bending errors, and improve the yield rate.

[0055] The implementation principle of a metal sheet bending device according to an embodiment of this application is as follows: The sheet metal is placed on the feeding platform 9 located at the first position. The pushing component 92 pushes one end of the sheet metal into the upper part of the V-groove 801, and one end of the sheet metal abuts against the limiting block 111. The upper die presses down to bend the sheet metal. After the upper die is raised, the pushing rod 31 extends and moves further to the lower die 8 in conjunction with the limiting block 111. At the same time, force is applied to both ends of the sheet metal to push the sheet metal out of the V-groove 801, and the sheet metal re-contacts the upper surface of the feeding platform 9. The discharging component 93 holds the sheet metal by means of an electromagnet block 931. The electromagnet block 931 moves away from the lower die 8, pulling the sheet metal from the bending station onto the feeding platform 9. The feeding platform 9 descends to the second position, and the pushing component 92 pushes the bent part of the plate into the pressing space 802. The upper die applies force to the lower die 8, and the lower die 8 and the worktable 11 flatten the bent part of the plate to complete the pressing edge. After the upper die is raised, the discharging component 93 pulls the plate out from the pressing space 802 to complete the discharge.

[0056] The above are all preferred embodiments of this application. These embodiments are merely explanations of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A metal sheet bending device, comprising a frame (1), characterized in that, A hydraulic assembly (2) is provided on the frame (1). The output end of the hydraulic assembly (2) is connected to a pressing mechanism (3). The lower end of the pressing mechanism (3) is fixedly connected to a connecting seat (4). Multiple continuously arranged mounting plates (5) are detachably connected to the connecting seat (4). Multiple continuously arranged upper modules (6) are provided between the mounting plates (5) and the connecting seat (4). The mounting plates (5) and the upper modules (6) are arranged in a one-to-one correspondence. Connectors (7) are provided at both ends of the upper modules (6). The connectors (7) on adjacent upper modules (6) are connected to each other. Connectors (7) are also provided at both ends of the connecting seat (4). The connectors (7) on the upper modules (6) near the two ends of the connecting seat (4) are connected to the connectors (7) on the connecting seat (4). The frame (1) is also provided with a lower mold (8), which is correspondingly arranged with the upper mold assembly.

2. The metal sheet bending equipment according to claim 1, characterized in that: The connecting seat (4) is provided with a sliding groove (401), the upper module (6) is provided with a protruding edge (61) that is slidably connected to the sliding groove (401), the upper module (6) is provided with an installation groove (601) on the side away from the connecting seat (4), and the mounting plate (5) is provided with an installation strip (51) that is slidably connected to the installation groove (601).

3. The metal sheet bending equipment according to claim 1, characterized in that: The connector (7) includes a latch (71) and a latch protrusion (72). The latch protrusion (72) forms a groove on the side away from the latch (71). The latch (71) is fitted into the groove. The latch (71) and the latch protrusion (72) are respectively disposed at both ends of the upper module (6). The connector (4) is provided with a latch protrusion (72) and a latch (71) at both ends.

4. The metal sheet bending equipment according to claim 1, characterized in that: The frame (1) includes a workbench (11), the lower mold (8) is disposed on one side of the workbench (11), and a feeding platform (9) is also provided on one side of the workbench (11). The feeding platform (9) is located on one side of the lower mold (8), and the upper end of the feeding platform (9) is flush with the upper end of the lower mold (8).

5. A metal sheet bending device according to claim 4, characterized in that: A limiting block (111) is provided on the side of the workbench (11) away from the feeding platform (9). The limiting block (111) is connected to a first driving component (112). The first driving component (112) drives the limiting block (111) to move back and forth towards or away from the lower mold (8).

6. A metal sheet bending device according to claim 4, characterized in that: The workbench (11) is provided with a buffer groove (1101). The lower mold (8) includes a mold body (81) and a connecting part (82). The connecting part (82) is partially disposed in the buffer groove (1101). A spring (83) is disposed in the buffer groove (1101). The two ends of the spring (83) are respectively connected to the bottom surface of the buffer groove (1101) and the bottom of the connecting part (82). There is a pressing space (802) between the mold body (81) and the workbench (11). It also includes a lifting mechanism (91) disposed at the bottom of the feeding platform (9), the lifting mechanism (91) driving the feeding platform (9) to move up and down reciprocally, the feeding platform (9) having at least a first position and a second position, when the feeding platform (9) is in the first position, the upper surface of the feeding platform (9) is aligned with the upper end of the mold body (81), and when the feeding platform (9) is in the second position, the upper surface of the feeding platform (9) is aligned with the upper surface of the worktable (11) at the pressing space (802).

7. A metal sheet bending device according to claim 6, characterized in that: The lifting mechanism (91) includes a first lifting component (911) and a second lifting component (912). The first lifting component (911) is hinged to the bottom of the feeding platform (9) near the lower mold (8), and the second lifting component (912) is hinged to the bottom of the feeding platform (9) away from the lower mold (8).

8. A metal sheet bending device according to claim 6, characterized in that: The upper surface of the feeding platform (9) is provided with a pushing component (92). The pushing component (92) includes a second driving component (922) and a pushing part (921). The second driving component (922) drives the pushing part (921) to move reciprocally closer to or further away from the lower mold (8).

9. A metal sheet bending device according to claim 6, characterized in that: The upper surface of the feeding platform (9) is recessed with a discharge groove (901). The discharge groove (901) is provided with a discharge component (93). The discharge component (93) includes a third drive component (932) and an electromagnet block (931). The third drive component (932) drives the electromagnet block (931) to reciprocate within the discharge groove (901) towards or away from the lower mold (8).

10. A metal sheet bending device according to claim 6, characterized in that: The pressing mechanism (3) has a push rod (31) on the side near the feeding platform (9). The push rod (31) is telescopic. When the push rod (31) is extended, its lower end abuts against the upper surface of the feeding platform (9).

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