A cable tray processing bending machine

Abstract

The application discloses a bending machine for cable bridge processing, which comprises a bending machine body, a pressing and folding structure, a material pulling structure, a lifting and folding structure, a mounting structure and a discharging structure. The mounting structure can quickly disassemble and assemble the bending strip without additional tools, and can also drive the translation of the bending strip. The bending strip can be switched to the lower side of the bending pressing plate, and various bending depths can be adapted without changing the mold. The processing adaptability and adjustment accuracy are high. The pressing and folding structure drives the bending pressing plate to vertically descend and fold, runs stably without deviation, and has stable processing quality. The material pulling structure realizes automatic fixed-length feeding through mechanical clamps, replaces manual feeding to reduce labor intensity, and accurately controls the feeding size. The lifting and folding structure can synchronously complete the side edge folding processing of the bridge, realizes integrated forming, and the lifting and folding angle is adjustable, which expands the processing range of the equipment. The discharging structure can automatically push away the finished product and stably convey the discharged material through the roller, avoids the knocking and scratching of the workpiece, and effectively improves the processing rhythm and the qualified rate of the finished product.

Description

Technical Field

[0001] This invention relates to the field of cable tray processing equipment technology, specifically a bending machine for cable tray processing. Background Technology

[0002] Cable trays are important supporting components used to carry and protect cables in power engineering and communication cabling systems. They are widely used in cable laying operations in various scenarios such as industrial plants, commercial buildings, and municipal pipelines. Depending on the corners, height differences, and cabling requirements of the installation path, cable trays often need to be processed into shaped structures with different bending angles and groove depths. Bending machines are the core processing equipment for bending and shaping cable tray materials.

[0003] However, in the existing cable tray bending machine, the bending forming mold strips are mostly installed by bolt fixing. When it is necessary to process cable trays with different bending depths or different bending angles, it is necessary to use tools to disassemble the fasteners one by one to replace the mold strips. The mold replacement process is cumbersome and time-consuming, and the repeatability positioning accuracy is poor, which can easily lead to deviations in bending dimensions. At the same time, a single mold strip usually only corresponds to one forming specification, and it is not possible to quickly switch the bending depth without changing the mold, which limits the processing adaptability of the equipment. Meanwhile, the feeding process relies heavily on manual pushing of the boards, and the feeding length is controlled by manual measurement, resulting in poor processing consistency. In addition, large-size cable tray boards are heavy, and manual feeding is labor-intensive and has low production efficiency. The bending function of existing cable tray bending machines is limited. Most machines can only complete a single bending process of vertical downward pressure, and cannot achieve the lifting and flanging processing of the side of the cable tray. This makes it difficult to meet the integrated molding requirements of complex structural components such as trough-type cable trays. The processing process is scattered, and the overall production efficiency is low. After bending, the finished workpieces are mostly handled and unloaded manually. Large workpieces are difficult to handle, and the unloading process is prone to defects such as scratches on the surface of the sheet material and deformation of the bending angle. The finished product qualification rate is greatly affected by human factors and restricts the overall processing speed. Summary of the Invention

[0004] The purpose of this invention is to provide a bending machine for processing cable trays, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A bending machine for processing cable trays includes a bending machine body, a bending structure on the bending machine body, the bending structure including a mounting plate, a support plate and a bending strip, a T-shaped mounting plate fixedly connected to the front of the bending machine body, an L-shaped support plate fixedly connected to the front and rear sides of the mounting plate, and a bending strip installed on the mounting plate and the support plate through the mounting structure; The installation structure includes a fixed rod, an installation block, a connecting strip, a drive plate, a second screw, a handwheel, an installation sleeve, a locking block, a locking groove, a pull rod, a spring, and a pull block. Two fixed rods are fixedly connected between two support plates. An installation block is slidably connected to the fixed rod. A connecting strip is fixedly connected to the installation block and is slidably connected to the support plate. A drive plate is fixedly connected to one side of the two connecting strips. A second screw is rotatably connected to the support plate and is threadedly connected to the drive plate. A handwheel is fixedly connected to the end of the second screw. An installation sleeve is fixedly connected to the installation block. A locking block with a trapezoidal end cross-section is slidably connected inside the installation sleeve. Each end of the bent strip has a locking groove, and the locking block engages with the locking groove. A spring is fixedly connected between the locking block and the installation sleeve. A pull rod is fixedly connected to the locking block and is slidably connected to the installation block. A pull block is fixedly connected to the end of the pull rod.

[0006] To improve the installation positioning accuracy and operational stability of the bending strip, as a preferred embodiment of the present invention: the installation structure further includes inserts and slots, the mounting plate is provided with two slots, the bottom end of the bending strip is fixedly connected to two inserts, and the inserts and slots are slidably connected.

[0007] To achieve the pressing and bending forming of cable tray panels, as a preferred embodiment of the present invention: the pressing and bending structure further includes a first driving component, a lifting plate, a mounting base, and a bending pressure plate. Two first driving components are fixedly connected to the bending machine body. A lifting plate is fixedly connected to the telescopic end of the first driving component. Multiple mounting bases are fixedly connected to the bottom end of the lifting plate. A bending pressure plate is fixedly connected to each of the multiple mounting bases. An unbent cable tray body is placed on the support plate and bending strip. The cable tray body is bent by the bending pressure plate in conjunction with the bending groove on the bending strip.

[0008] To ensure smooth operation during the bending process, as a preferred embodiment of the present invention, the bending structure further includes a fixed plate, guide columns, and a fixing strip. A fixed plate with an L-shaped cross-section is fixedly connected to one side of the lifting plate. Two guide columns are fixedly connected to the fixed plate. A fixing strip is fixedly connected to the bending machine body. The guide columns and the fixing strip are slidably connected.

[0009] To achieve automatic fixed-length feeding, as a preferred embodiment of the present invention: the bending machine body is provided with a material pulling structure, the material pulling structure including a connecting plate, a first screw, a drive frame, a second drive component, a slide block, a slide groove, a fixed seat, and a mechanical clamp. The connecting plate is fixedly connected inside the bending machine body, the first screw is rotatably connected to the connecting plate, the drive frame with a V-shaped cross section is threaded onto the first screw, the second drive component is fixedly connected to the connecting plate, the output end of the second drive component is fixedly connected to the first screw, two slide blocks are fixedly connected to the drive frame, two slide grooves are provided on the support plate, the slide blocks are slidably connected to the slide grooves, a fixed seat is fixedly connected to the slide block, and a mechanical clamp is fixedly connected to the fixed seat.

[0010] To improve the stability of the feeding operation, as a preferred embodiment of the present invention: the material pulling structure further includes a fixed block and a first guide rod, two fixed blocks are fixedly connected to the bending machine body, and two first guide rods are fixedly connected to each fixed block, and the slide is slidably connected to the first guide rod.

[0011] To achieve the bending processing of the side edges of the cable tray, as a preferred embodiment of the present invention: the support plate is provided with a lifting and bending structure, the lifting and bending structure includes a rotating shaft, a rotating plate, a drive bar, a connecting shaft, a rotating seat, and a third driving component. Each support plate is fixedly connected to a rotating shaft, and two rotating plates are rotatably connected to each rotating shaft. An arc-shaped drive bar is fixedly connected to the bottom end of each rotating plate, and a connecting shaft is fixedly connected to the bottom end of each of the two drive bars. Two rotating seats are fixedly connected to each side of the mounting plate, and a third driving component is rotatably connected to each rotating seat. The telescopic end of the third driving component is rotatably connected to the connecting shaft.

[0012] To ensure accurate bending trajectory, as a preferred embodiment of the present invention, the lifting and bending structure further includes a guide groove, a connecting seat, and a guide shaft. The drive bar is provided with a guide groove, and two connecting seats are fixedly connected to the bottom end of each support plate. A guide shaft is fixedly connected between the two connecting seats, and the guide shaft is slidably connected to the guide groove.

[0013] To achieve automatic ejection and unloading of workpieces, as a preferred embodiment of the present invention: the bending machine body is provided with an unloading structure, the unloading structure including a side plate, a third screw, a fourth driving component, a push bar, and a second guide rod. Each end of the mounting plate is fixedly connected to a side plate, and a third screw is rotatably connected between the two side plates. A push bar is threadedly connected to the third screw, and the push bar abuts against the end of the bridge frame body. A fourth driving component is fixedly connected to the side plate, and the output end of the fourth driving component is fixedly connected to the third screw. A second guide rod is fixedly connected to the mounting plate, and the push bar is slidably connected to the second guide rod.

[0014] To achieve stable conveying and discharge of finished products, as a preferred embodiment of the present invention: the feeding structure further includes a feeding frame, feeding rollers, a support plate, a pulley, and a fifth driving component. A feeding frame is provided on one side of the bending machine body. Multiple feeding rollers are linearly arrayed and rotatably connected on the feeding frame. A pulley is fixedly connected to the roller shaft of one of the feeding rollers near the bending machine body. A support plate is fixedly connected to the feeding frame. A fifth driving component is fixedly connected to the support plate. Another pulley is fixedly connected to the output shaft of the fifth driving component. The two pulleys are driven by a belt.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1) The installation structure allows for the complete disassembly and replacement of the bending strip without the need for additional tools, making the mold changing operation convenient and efficient. At the same time, it can quickly switch the forming grooves of different depths on the bending strip to the area directly below the bending pressure plate, adapting to various bending depth processing requirements without changing the mold strip, greatly improving the processing adaptability and adjustment accuracy of the equipment.

[0016] 2) The lifting plate and bending plate are driven to move downwards and bend through the pressure and bending structure. The bending plate always presses down vertically, resulting in a precise bending angle and a flat and undistorted forming surface, which improves the quality and stability of bending processing.

[0017] 3) The material pulling structure achieves automatic fixed-length material pulling through mechanical clamps, replacing manual feeding and significantly reducing the labor intensity of operators. At the same time, the feeding length can be precisely controlled by controlling the number of rotations of the drive component, improving the accuracy of the feeding size.

[0018] 4) The lifting and folding structure enables the integrated forming of the main body bending and side folding of the cable tray. The lifting and folding angle can be flexibly adjusted by controlling the stroke of the drive component, adapting to the processing needs of various specifications of cable trays, expanding the processing range of the equipment, reducing process flow, and improving overall production efficiency.

[0019] 5) After bending, the unloading structure can automatically push the finished workpiece away from the processing station and smoothly transport it out through the unloading roller conveyor. There is no need for manual handling of the unloading, which improves the unloading efficiency and the overall processing cycle. At the same time, it avoids the workpiece collision and scratch damage caused by manual handling, and ensures the appearance quality and pass rate of the finished product. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the bending machine and the connecting plate of the present invention; Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A. Figure 4This is a schematic diagram of the compression and bending structure of the present invention; Figure 5 This is a schematic diagram of the material pulling structure of the present invention; Figure 6 for Figure 5 The diagram shown is an enlarged view of the structure of section B. Figure 7 This is a schematic diagram of the lifting and folding structure of the present invention; Figure 8 This is a schematic diagram of the connection structure between the drive plate and the second screw of the present invention; Figure 9 for Figure 8 The diagram shown is an enlarged view of the C-section structure. Figure 10 This is a schematic diagram of the material feeding structure of the present invention.

[0021] In the diagram: 1. Bending machine body; 2. Pressing and bending structure; 201. Mounting plate; 202. Support plate; 203. Bending strip; 204. First driving component; 205. Lifting plate; 206. Mounting seat; 207. Bending pressure plate; 208. Fixing plate; 209. Guide column; 210. Fixing strip; 3. Material pulling structure; 301. Connecting plate; 302. First screw; 303. Drive frame; 304. Second driving component; 305. Slide seat; 306. Slide groove; 307. Fixing seat; 308. Mechanical clamp; 309. Fixing block; 310. First guide rod; 4. Lifting and bending structure; 401. Rotating shaft; 402. Rotating plate; 403. Drive strip; 404. Connecting shaft; 405. Rotating seat; 406. 407. Third drive component; 408. Guide groove; 409. Connecting seat; 400. Guide shaft; 5. Mounting structure; 501. Fixing rod; 502. Mounting block; 503. Connecting strip; 504. Drive plate; 505. Second screw; 506. Handwheel; 507. Insert block; 508. Slot; 509. Mounting sleeve; 510. Locking block; 511. Locking groove; 512. Pull rod; 513. Spring; 514. Pull block; 6. Unloading structure; 601. Side plate; 602. Third screw; 603. Fourth drive component; 604. Push bar; 605. Second guide rod; 606. Unloading frame; 607. Unloading roller; 608. Support plate; 609. Pulley; 610. Fifth drive component; 7. Bridge frame body. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1-10 The present invention provides a technical solution: a bending machine for processing cable trays, including a bending machine body 1, a bending structure 2 on the bending machine body 1, the bending structure 2 including a mounting plate 201, a support plate 202 and a bending strip 203, a T-shaped mounting plate 201 fixedly connected to the front of the bending machine body 1, an L-shaped support plate 202 fixedly connected to each of the front and rear sides of the mounting plate 201, and bending strips 203 installed on the mounting plate 201 and the support plate 202 through a mounting structure 5; The mounting structure 5 includes a fixing rod 501, a mounting block 502, a connecting strip 503, a drive plate 504, a second screw 505, a handwheel 506, a mounting sleeve 509, a locking block 510, a locking groove 511, a pull rod 512, a spring 513, and a pull block 514. Two fixing rods 501 are fixedly connected between the two support plates 202. The mounting block 502 is slidably connected to the fixing rod 501. A connecting strip 503 is fixedly connected to the mounting block 502 and slidably connected to the support plate 202. A drive plate 504 is fixedly connected to one side of each connecting strip 503. A second screw 505 is rotatably connected to the support plate 202. The second screw 505 is threadedly connected to the drive plate 504. A handwheel 506 is fixedly connected to the end of the second screw 505. An installation sleeve 509 is fixedly connected to the installation block 502. A locking block 510 with a trapezoidal end section is slidably connected inside the installation sleeve 509. Each end of the bent strip 203 is provided with a locking groove 511. The locking block 510 engages with the locking groove 511. A spring 513 is fixedly connected between the locking block 510 and the installation sleeve 509. A pull rod 512 is fixedly connected to the locking block 510. The pull rod 512 is slidably connected to the installation block 502. A pull block 514 is fixedly connected to the end of the pull rod 512.

[0024] In practical use, turning the handwheel 506 can drive the second screw 505 to rotate synchronously, which in turn drives the drive plate 504 to move along the screw axis through the threaded transmission. This, in turn, drives the two mounting blocks 502 to slide synchronously along the fixed rod 501 through the connecting strip 503. Since the locking block 510 is engaged in the slot 511 of the bending strip 203, when the mounting block 502 moves, it can drive the bending strip 203 to move synchronously along its own length direction. This switches the forming groove of the corresponding depth on the bending strip 203 to the direct under the bending pressure plate 207. It can adapt to the processing requirements of different bending depths without disassembling and replacing the bending strip 203. The adjustment operation is convenient and the positioning is accurate. When the entire bending strip 203 needs to be replaced, pull the pull block 514 outward. The pull rod 512 drives the locking block 510 to compress the spring 513 and retract it into the mounting sleeve 509, releasing the locking relationship between the locking block 510 and the slot 511. The bending strip 203 can then be taken out upward to complete the disassembly. During installation, after placing the bending strip 203 in place, release the pull block 514. The spring 513 returns to its original position and pushes the locking block 510 into the slot 511 to complete the locking. No additional tools are required for disassembly and assembly, resulting in high mold change efficiency.

[0025] The mounting structure 5 also includes inserts 507 and slots 508. The mounting plate 201 is provided with two slots 508. The bottom end of the bent strip 203 is fixedly connected to two inserts 507, and the inserts 507 and slots 508 are slidably connected.

[0026] In practical use, during the installation of the bending strip 203, first align the insert 507 with the slot 508 and insert it vertically. This can achieve rapid initial positioning of the bending strip 203 and prevent the bending strip 203 from shifting or misaligning to the left or right. At the same time, the cooperation between the insert 507 and the slot 508 can withstand the lateral shearing force during the bending process, improve the installation stability of the bending strip 203, prevent the module from shifting during the bending operation, and ensure bending accuracy.

[0027] The bending structure 2 also includes a first driving component 204, a lifting plate 205, a mounting base 206, and a bending pressure plate 207. Two first driving components 204 are fixedly connected to the bending machine body 1. The lifting plate 205 is fixedly connected to the telescopic end of the first driving component 204. Multiple mounting bases 206 are fixedly connected to the bottom end of the lifting plate 205. A bending pressure plate 207 is fixedly connected to the multiple mounting bases 206. An unbent cable tray body 7 is placed on the support plate 202 and the bending strip 203. The cable tray body 7 is bent by the bending pressure plate 207 in conjunction with the bending groove on the bending strip 203.

[0028] In practical use, the cable tray body 7 to be processed is laid flat on the top surface of the two side support plates 202 and the bending strip 203. After adjusting the bending position, the first drive component 204 is started. The telescopic rod of the first drive component 204 extends synchronously, driving the lifting plate 205 to move vertically downward. The bending pressure plate 207 then presses down and contacts the upper surface of the cable tray body 7. During the continuous pressing process, it cooperates with the forming groove of the bending strip 203 below to bend the cable tray body 7 into shape. After bending and holding pressure for a period of time, the first drive component 204 retracts, driving the bending pressure plate 207 to move upward and reset, waiting for the next bending operation.

[0029] The bending structure 2 also includes a fixed plate 208, guide columns 209 and a fixing strip 210. A fixed plate 208 with an L-shaped cross section is fixedly connected to one side of the lifting plate 205. Two guide columns 209 are fixedly connected to the fixed plate 208. A fixing strip 210 is fixedly connected to the bending machine body 1. The guide columns 209 and the fixing strip 210 are slidably connected.

[0030] In practical use, during the up-and-down movement of the lifting plate 205, the guide column 209 slides synchronously along the guide hole of the fixing strip 210 to rigidly limit the running direction of the lifting plate 205, preventing the lifting plate 205 from shifting or swaying in the front-back or left-right directions, ensuring that the bending pressure plate 207 always remains in a vertical downward state, and ensuring that the bending angle is accurate and the forming surface is flat and without twisting.

[0031] The bending machine body 1 is provided with a material pulling structure 3, which includes a connecting plate 301, a first screw 302, a drive frame 303, a second drive component 304, a slide 305, a slide groove 306, a fixed seat 307, and a mechanical clamp 308. The connecting plate 301 is fixedly connected inside the bending machine body 1. The first screw 302 is rotatably connected to the connecting plate 301. The drive frame 303 with a V-shaped cross section is threadedly connected to the first screw 302. The second drive component 304 is fixedly connected to the connecting plate 301. The output end of the second drive component 304 is fixedly connected to the first screw 302. Two slides 305 are fixedly connected to the drive frame 303. Two slide grooves 306 are provided on the support plate 202. The slides 305 and the slide grooves 306 are slidably connected. The fixed seat 307 is fixedly connected to the slide 305. The mechanical clamp 308 is fixedly connected to the fixed seat 307.

[0032] In practical use, during automatic feeding, the end of the cable tray body 7 is first fed into the clamping range of the mechanical clamp 308, which then closes and clamps the end of the plate. Subsequently, the second drive component 304 is activated, driving the first screw 302 to rotate. Through threaded transmission, the drive frame 303 moves axially along the first screw 302, thereby driving the two slide blocks 305 to slide synchronously along the slide groove 306. Through the fixed seat 307, the mechanical clamp 308 drags the cable tray body 7 towards the bending station. By controlling the number of rotations of the second drive component 304, the feeding length can be precisely controlled, achieving fixed-length bending processing, replacing manual feeding, and improving processing accuracy and efficiency.

[0033] The material pulling structure 3 also includes a fixing block 309 and a first guide rod 310. Two fixing blocks 309 are fixedly connected to the bending machine body 1, and two first guide rods 310 are fixedly connected to each fixing block 309. The slide block 305 is slidably connected to the first guide rod 310.

[0034] In actual use, during the movement of the slide 305, it also slides along the first guide rod 310. The first guide rod 310 provides additional bottom support and guidance for the slide 305, further improving the stability of the feeding operation and preventing the slide 305 from shaking up and down or swaying left and right, ensuring that the bridge body 7 does not tilt during the feeding process.

[0035] The support plate 202 is provided with a lifting and folding structure 4, which includes a rotating shaft 401, a rotating plate 402, a drive bar 403, a connecting shaft 404, a rotating seat 405, and a third driving component 406. Each support plate 202 is fixedly connected to a rotating shaft 401, and two rotating plates 402 are rotatably connected to each rotating shaft 401. An arc-shaped drive bar 403 is fixedly connected to the bottom end of the rotating plate 402, and a connecting shaft 404 is fixedly connected to the bottom end of the two drive bars 403. Two rotating seats 405 are fixedly connected to each side of the mounting plate 201, and a third driving component 406 is rotatably connected to each rotating seat 405. The telescopic end of the third driving component 406 is rotatably connected to the connecting shaft 404.

[0036] In practical use, when it is necessary to bend the edge of the cable tray body 7, first place the edge of the cable tray body 7 corresponding to the forming groove of the bending strip 203, so that the bending pressure plate 207 presses the plate of the cable tray body 7 onto the bending strip 203. Then, start the third drive component 406, the telescopic rod of the third drive component 406 extends, pushes the connecting shaft 404 upward, drives the arc drive strip 403 to make an arc movement around the rotating shaft 401, and then makes the rotating plate 402 rotate upward around the rotating shaft 401, bending and lifting the side of the cable tray body 7 upward. By controlling the extension stroke of the third drive component 406, the rotation angle of the rotating plate 402 can be flexibly adjusted, so as to process the side edge folding edge of different angles to meet the forming requirements of different specifications of trough cable trays.

[0037] The lifting and folding structure 4 also includes a guide groove 407, a connecting seat 408 and a guide shaft 409. The drive bar 403 is provided with a guide groove 407. Two connecting seats 408 are fixedly connected to the bottom end of each support plate 202. A guide shaft 409 is fixedly connected between the two connecting seats 408. The guide shaft 409 is slidably connected to the guide groove 407.

[0038] In practical use, as the drive bar 403 moves with the third drive component 406, the guide groove 407 slides along the guide shaft 409 to limit and guide the movement trajectory of the drive bar 403, ensuring that the drive bar 403 always moves along the set arc trajectory, avoiding axial displacement during the flipping of the rotating plate 402, and improving the stability and angle accuracy of the lifting and folding action.

[0039] The bending machine body 1 is provided with a feeding structure 6, which includes a side plate 601, a third screw 602, a fourth drive member 603, a pusher 604, and a second guide rod 605. A side plate 601 is fixedly connected to each end of the mounting plate 201, and a third screw 602 is rotatably connected between the two side plates 601. A pusher 604 is threadedly connected to the third screw 602, and the pusher 604 abuts against the end of the bridge frame body 7. A fourth drive member 603 is fixedly connected to the side plate 601, and the output end of the fourth drive member 603 is fixedly connected to the third screw 602. A second guide rod 605 is fixedly connected to the mounting plate 201, and the pusher 604 is slidably connected to the second guide rod 605.

[0040] In practical use, after the cable tray body 7 is bent, the fourth drive component 603 is activated, which drives the third screw 602 to rotate. Through the threaded transmission, the pusher 604 is driven to move laterally along the second guide rod 605. The side wall of the pusher 604 abuts against the end of the cable tray body 7, pushing the bent cable tray body 7 outward from the processing station in the unloading direction, realizing automatic unloading without the need for manual handling of large plates.

[0041] The feeding structure 6 also includes a feeding frame 606, feeding rollers 607, a support plate 608, a pulley 609, and a fifth drive component 610. The feeding frame 606 is provided on one side of the bending machine body 1. Multiple feeding rollers 607 are linearly arrayed and rotatably connected on the feeding frame 606. A pulley 609 is fixedly connected to the roller shaft of one feeding roller 607 near the bending machine body 1. A support plate 608 is fixedly connected to the feeding frame 606. The fifth drive component 610 is fixedly connected to the support plate 608. Another pulley 609 is fixedly connected to the output shaft of the fifth drive component 610. The two pulleys 609 are driven by a belt.

[0042] In practical use, after the pusher 604 pushes the bridge frame body 7 onto the unloading roller 607 of the unloading frame 606, the fifth drive unit 610 is activated. Through the two pulleys 609 and the transmission belt, the unloading roller 607 at the first end is driven to rotate. Then, through the friction between the bridge frame body 7 and the roller surface, all unloading rollers 607 are driven to rotate synchronously, so that the bridge frame body 7 is smoothly conveyed out along the discharge direction, completing the entire unloading process. Roller conveying can reduce the friction on the workpiece surface, avoid scratch damage to the plate surface, and at the same time significantly reduce the labor intensity of unloading and improve the processing cycle.

[0043] Working principle: According to the bending depth requirement of the cable tray body 7 to be processed, turn the handwheel 506 to drive the second screw 505 to rotate. Through the drive plate 504 and the connecting bar 503, drive the mounting block 502 to move along the fixed rod 501. Then, through the locking block 510, drive the bending strip 203 to slide along the slot 508, and accurately switch the forming groove of the corresponding depth to the underside of the bending pressure plate 207 to complete the processing parameter adjustment. If it is necessary to replace the bending strip 203 with a different angle and specification, pull the pull block 514 to unlock the locking block 510, take out the old bending strip 203 upwards and put in the new bending strip 203. Release the pull block 514 to lock automatically. The cable tray body 7 to be processed is placed on the support plate 202, and the end is fed into the mechanical clamp 308, which clamps the plate. The second drive component 304 (preferably a motor) is started, and the slide 305 is moved along the feeding direction through the first screw 302 and the drive frame 303, dragging the cable tray body 7 to the bending station for a fixed length, so that the bending position is precisely aligned with the forming groove. Next, the first driving component 204 (preferably a hydraulic cylinder) is activated, driving the lifting plate 205 and the bending pressure plate 207 to move vertically downward. The bending pressure plate 207, in conjunction with the forming groove of the bending strip 203 below, performs the main pressure bending of the cable tray body 7. If side edge bending is required, the third driving component 406 (preferably a hydraulic rod) is activated simultaneously, pushing the driving strip 403 to drive the rotating plate 402 to rotate around the rotating shaft 401, completing the lifting and bending processing of the side edge of the cable tray. The bending angle is adjusted by controlling the stroke of the driving component. Finally, after the bending process is completed, the bending pressure plate 207 and the rotating plate 402 are reset, and the mechanical clamp 308 releases the workpiece; the fourth driving component 603 (preferably a motor) is started, which drives the push bar 604 to move laterally and pushes the bridge frame body 7 onto the unloading roller 607 of the unloading frame 606. The fifth driving component 610 (preferably a motor) drives the unloading roller 607 to rotate through belt transmission, and smoothly conveys the finished workpiece out, completing a single processing cycle. Then, all mechanisms are reset, waiting for the next processing.

[0044] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bending machine for processing cable trays, comprising a bending machine body (1), characterized in that, The bending machine body (1) is provided with a pressing and bending structure (2). The pressing and bending structure (2) includes a mounting plate (201), a support plate (202), and a bending strip (203). A T-shaped mounting plate (201) is fixedly connected to the front of the bending machine body (1). An L-shaped support plate (202) is fixedly connected to each of the front and rear sides of the mounting plate (201). A bending strip (203) is installed on the mounting plate (201) and the support plate (202) through the mounting structure (5). The mounting structure (5) includes a fixing rod (501), a mounting block (502), a connecting strip (503), a drive plate (504), a second screw (505), a handwheel (506), a mounting sleeve (509), a locking block (510), a locking groove (511), a pull rod (512), a spring (513), and a pull block (514). Two fixing rods (501) are fixedly connected between two support plates (202). The mounting block (502) is slidably connected to the fixing rod (501). The connecting strip (503) is fixedly connected to the mounting block (502). The connecting strip (503) is slidably connected to the support plate (202). A drive plate (504) is fixedly connected to one side of the two connecting strips (503). A second screw is rotatably connected to the support plate (202). The rod (505) is threaded to the drive plate (504). A handwheel (506) is fixedly connected to the end of the second screw (505). An installation sleeve (509) is fixedly connected to the mounting block (502). A locking block (510) with a trapezoidal end section is slidably connected inside the mounting sleeve (509). Each end of the bent strip (203) is provided with a locking groove (511). The locking block (510) engages with the locking groove (511). A spring (513) is fixedly connected between the locking block (510) and the mounting sleeve (509). A pull rod (512) is fixedly connected to the locking block (510). The pull rod (512) is slidably connected to the mounting block (502). A pull block (514) is fixedly connected to the end of the pull rod (512).

2. The bending machine for cable tray processing according to claim 1, characterized in that: The mounting structure (5) further includes inserts (507) and slots (508). The mounting plate (201) is provided with two slots (508). The bottom end of the bent strip (203) is fixedly connected to two inserts (507). The inserts (507) and slots (508) are slidably connected.

3. The bending machine for cable tray processing according to claim 1, characterized in that: The bending structure (2) further includes a first driving component (204), a lifting plate (205), a mounting base (206), and a bending pressure plate (207). Two first driving components (204) are fixedly connected to the bending machine body (1). The lifting plate (205) is fixedly connected to the telescopic end of the first driving component (204). Multiple mounting bases (206) are fixedly connected to the bottom end of the lifting plate (205). A bending pressure plate (207) is fixedly connected to the multiple mounting bases (206). An unbent cable tray body (7) is placed on the support plate (202) and the bending strip (203). The cable tray body (7) is bent by the bending pressure plate (207) in conjunction with the bending groove on the bending strip (203).

4. A bending machine for processing cable trays according to claim 3, characterized in that: The bending structure (2) also includes a fixed plate (208), guide posts (209) and a fixing strip (210). A fixed plate (208) with an L-shaped cross section is fixedly connected to one side of the lifting plate (205). Two guide posts (209) are fixedly connected to the fixed plate (208). A fixing strip (210) is fixedly connected to the bending machine body (1). The guide posts (209) and the fixing strip (210) are slidably connected.

5. A bending machine for processing cable trays according to claim 1, characterized in that: The bending machine body (1) is provided with a material pulling structure (3), which includes a connecting plate (301), a first screw (302), a drive frame (303), a second drive component (304), a slide (305), a slide groove (306), a fixed seat (307), and a mechanical clamp (308). The connecting plate (301) is fixedly connected inside the bending machine body (1), and the first screw (302) is rotatably connected to the connecting plate (301). The drive frame with a V-shaped cross section is threadedly connected to the first screw (302). (303) A second driving member (304) is fixedly connected to the connecting plate (301). The output end of the second driving member (304) is fixedly connected to the first screw (302). Two slide blocks (305) are fixedly connected to the driving frame (303). Two sliding grooves (306) are provided on the support plate (202). The slide blocks (305) are slidably connected to the sliding grooves (306). A fixed seat (307) is fixedly connected to the slide blocks (305). A mechanical clamp (308) is fixedly connected to the fixed seat (307).

6. A bending machine for processing cable trays according to claim 5, characterized in that: The material pulling structure (3) also includes a fixing block (309) and a first guide rod (310). Two fixing blocks (309) are fixedly connected to the bending machine body (1), and two first guide rods (310) are fixedly connected to each fixing block (309). The slide (305) is slidably connected to the first guide rod (310).

7. A bending machine for processing cable trays according to claim 1, characterized in that: The support plate (202) is provided with a lifting and folding structure (4). The lifting and folding structure (4) includes a rotating shaft (401), a rotating plate (402), a driving bar (403), a connecting shaft (404), a rotating seat (405), and a third driving member (406). A rotating shaft (401) is fixedly connected to each support plate (202). Two rotating plates (402) are rotatably connected to each rotating shaft (401). An arc-shaped driving bar (403) is fixedly connected to the bottom end of the rotating plate (402). A connecting shaft (404) is fixedly connected to the bottom end of the two driving bars (403). Two rotating seats (405) are fixedly connected to each side of the mounting plate (201). A third driving member (406) is rotatably connected to each rotating seat (405). The telescopic end of the third driving member (406) is rotatably connected to the connecting shaft (404).

8. A bending machine for processing cable trays according to claim 7, characterized in that: The lifting and folding structure (4) also includes a guide groove (407), a connecting seat (408) and a guide shaft (409). The drive bar (403) is provided with a guide groove (407). The bottom end of each support plate (202) is fixedly connected to two connecting seats (408). A guide shaft (409) is fixedly connected between the two connecting seats (408). The guide shaft (409) is slidably connected to the guide groove (407).

9. A bending machine for processing cable trays according to claim 1, characterized in that: The bending machine body (1) is provided with a feeding structure (6), which includes a side plate (601), a third screw (602), a fourth drive member (603), a pusher (604) and a second guide rod (605). A side plate (601) is fixedly connected to each end of the mounting plate (201), and a third screw (602) is rotatably connected between the two side plates (601). A pusher (604) is threadedly connected to the third screw (602), and the pusher (604) abuts against the end of the bridge frame body (7). A fourth drive member (603) is fixedly connected to the side plate (601), and the output end of the fourth drive member (603) is fixedly connected to the third screw (602). A second guide rod (605) is fixedly connected to the mounting plate (201), and the pusher (604) is slidably connected to the second guide rod (605).

10. A bending machine for processing cable trays according to claim 9, characterized in that: The feeding structure (6) also includes a feeding frame (606), feeding rollers (607), a support plate (608), a pulley (609), and a fifth drive component (610). The feeding frame (606) is provided on one side of the bending machine body (1). Multiple feeding rollers (607) are linearly arrayed and rotatably connected on the feeding frame (606). A pulley (609) is fixedly connected to the roller shaft of one of the feeding rollers (607) near the bending machine body (1). A support plate (608) is fixedly connected on the feeding frame (606). A fifth drive component (610) is fixedly connected on the support plate (608). Another pulley (609) is fixedly connected to the output shaft of the fifth drive component (610). The two pulleys (609) are driven by a belt.

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