Adjustable plate bending system for electric power and communication iron tower production

Abstract

The invention belongs to the technical field of plate machining, and particularly relates to an adjustable plate bending system for electric power and communication iron tower production, which comprises a platform, a push table is arranged above the platform and is used for pushing a to-be-bent plate to move, and a transmission part is arranged on the push table; the feeding mechanism is arranged on the platform and is used for driving the push table to move; the cleaning mechanism comprises an air injection part arranged on the platform and a stress part arranged on the air injection part; the liquid spraying mechanism comprises a liquid spraying part arranged above the platform, and a linkage part and a plugging part which are arranged on the liquid spraying part; the auxiliary mechanism comprises a positioning part arranged at the end part of the platform and a lifting part arranged on the positioning part; and the bending mechanism is arranged at the end part of the platform. The plate can be automatically cleaned and lubricated, precise positioning is achieved, and the bending precision and the production efficiency are improved.

Description

Technical Field

[0001] This invention belongs to the field of sheet metal processing technology, specifically relating to an adjustable sheet metal bending system for the production of power and communication towers. Background Technology

[0002] Power and communication towers are tall steel structures composed of steel components such as the tower body, platform, and lightning rod. They are hot-dip galvanized for corrosion protection and are mainly used for the transmission and transmission of microwave, ultra-short wave, and wireless network signals, serving wireless communication systems in fields such as public security, transportation, and communications. The tower body is generally composed of multiple angle steels or other connecting parts, with the angle steels being bent by a bending machine.

[0003] In the actual operation of traditional bending equipment, operators typically need to manually place the sheet metal to be bent under the bending mechanism. Then, the operator must precisely align the bending point of the sheet metal. This manual feeding method not only subjects operators to significant labor intensity but also drastically reduces processing efficiency. Prolonged repetitive labor can lead to operator fatigue, thereby affecting their operational accuracy.

[0004] Secondly, during the bending process of the sheet metal, there will be intense relative sliding between the sheet metal and the punch. If no lubrication is applied and there are particulate impurities on the surface of the sheet metal, the hard punch can easily leave scratches on the relatively soft surface of the sheet metal, thereby reducing product quality.

[0005] Secondly, in terms of bending positioning, most existing equipment uses a fixed limiting structure, which cannot quickly adjust the positioning position according to the size of the sheet material. This makes the operation cumbersome, the positioning accuracy poor, and makes it difficult to guarantee the consistency of bending dimensions. In addition, during the bending process, the sheet material may sag or shift due to its own weight, affecting the bending accuracy and even causing the sheet material to deform or become unusable. Summary of the Invention

[0006] The purpose of this invention is to provide an adjustable sheet metal bending system for the production of power and communication towers, which can automatically clean and lubricate the sheet metal, accurately position it, and improve bending accuracy and production efficiency.

[0007] The specific technical solution adopted by this invention is as follows: An adjustable sheet metal bending system for the production of power and communication towers includes a platform, a pusher table above the platform for pushing the sheet metal to be bent to move, and a transmission component on the pusher table. A feeding mechanism, which is mounted on the platform, is used to drive the pusher table to move; A cleaning mechanism, comprising a jetting unit disposed on a platform and a force-bearing unit disposed on the jetting unit; The liquid spraying mechanism includes a liquid spraying section disposed above the platform, and a linkage section and a sealing section disposed on the liquid spraying section; An auxiliary mechanism, comprising a positioning part disposed at the end of the platform and a lifting part disposed on the positioning part; A bending mechanism is provided at the end of the platform.

[0008] In a preferred embodiment, the transmission component includes a trapezoidal seat, which is fixedly connected to the push platform by a support rod. A trapezoidal plate is slidably inserted into one end of the trapezoidal seat, and a vertical rod is fixedly connected to the top surface of the trapezoidal plate. A first screw is threaded onto the trapezoidal seat, and one end of the first screw is rotatably connected to the trapezoidal plate through a bearing.

[0009] In a preferred embodiment, the feeding mechanism includes a mounting cavity, which is opened on the platform. A rotating rod is rotatably connected to the mounting cavity via a bearing. A threaded block is sleeved on the outer wall of the rotating rod and is fixedly connected to the push table. A guide rod is also fixedly connected to the mounting cavity, and the threaded block is slidably connected to the guide rod. A motor is fixedly installed at the end of the platform, and the output shaft of the motor is fixedly connected to one end of the rotating rod.

[0010] In a preferred embodiment, the jet unit includes a slide rail fixedly connected to the side of the platform, a slider slidably connected to the slide rail, an air supply pipe fixedly connected to the slider by a support rod, jet heads installed in an array at the lower end of the air supply pipe, a hollow tube fixedly connected to the end of the air supply pipe, a hollow cylinder sleeved at one end of the hollow tube, and the hollow cylinder fixedly connected to the platform by a support rod, and a piston plate fixedly sleeved on the outer wall of the inner end of the hollow tube within the hollow cylinder; The force-bearing part includes an n-shaped seat, which is fixedly connected to the gas pipeline. A round rod is rotatably connected to the n-shaped seat. A round plate is fixedly connected to the end of the round rod. A torsion spring is fixedly connected between the round plate and the n-shaped seat. A force-bearing plate is fixedly connected to the round rod.

[0011] In a preferred embodiment, the spraying unit includes a liquid storage tank, which is fixedly connected to the top of the platform by a support rod. An infusion cylinder is fixedly connected to the bottom surface of the liquid storage tank, and an infusion tube is connected to the infusion cylinder. The lower end of the infusion tube is connected to a spray hood, and the lower end of the spray hood has micro-holes arranged in an array.

[0012] In a preferred embodiment, the linkage includes a first linkage rod, which is rotatably connected to the infusion cylinder via a bearing. A first bevel gear is installed at the lower end of the first linkage rod, and an auger blade and a stirring rod are fixedly installed at the upper end of the first linkage rod. A second linkage rod is also rotatably connected to the platform via a bearing. A transmission gear is installed at one end of both the second linkage rod and the rotating rod, and a second bevel gear is installed at the other end of the second linkage rod.

[0013] In a preferred embodiment, the sealing part includes a T-shaped rod, which is piston-type inserted into the end of the spray hood. A sealing block is fixedly connected to one end of the T-shaped rod, and a vertical plate is fixedly connected to the top surface of the inner cavity of the spray hood. A first spring is fixedly connected between the vertical plate and the sealing block.

[0014] In a preferred embodiment, the positioning part includes a support plate, which is fixedly connected to the end of the platform by a support rod. A movable rod is slidably inserted into the support plate, and a positioning plate is fixedly connected to one end of the movable rod. A second screw is threadedly connected to the support plate, and one end of the second screw is rotatably connected to the positioning plate through a bearing.

[0015] In a preferred embodiment, the lifting part includes a T-shaped plate, which is slidably inserted into a positioning plate. A second spring is fixedly connected between the T-shaped plate and the positioning plate. A guide groove is provided at the end of the positioning plate. A guide block is slidably connected in the guide groove. A third spring is fixedly connected to the bottom surface of the guide block, and the lower end of the third spring is fixedly connected to the inner wall of the guide groove. An abutment plate is fixedly connected to the guide block, and a crossbar is fixedly connected to the T-shaped plate.

[0016] In a preferred embodiment, the bending mechanism includes a support frame located at the end of the platform. A hydraulic electric push rod is mounted on the support frame, and a lifting platform is fixedly connected to the lower end of the hydraulic electric push rod. A punch is mounted on the lower end of the lifting platform, and hollow shells are fixedly connected to both sides of the lifting platform. A connecting seat is slidably inserted into the lower end of the hollow shell, and a fourth spring is fixedly connected between the connecting seat and the hollow shell. A first pressure plate and a second pressure plate are respectively connected to the lower ends of the two connecting seats.

[0017] The technical effects achieved by this invention are as follows: This invention, through the coordinated design of the feeding mechanism, cleaning mechanism, spraying mechanism, and bending mechanism, enables the system to automatically complete processes such as sheet material conveying, surface cleaning, lubrication spraying, and precise bending. Compared to traditional manual feeding and adjustment methods, this invention significantly reduces the intensity of manual operation and avoids positioning errors caused by human factors by using mechanized linkage (such as synchronous driving of the cleaning / spraying mechanism by transmission components) and automated control (such as motor-driven lead screw feeding and hydraulic push rod bending). It also reduces the risk of operators coming into contact with high-speed moving parts, thus improving production safety. This invention integrates jet cleaning and metered liquid lubrication functions. Through a linkage mechanism between the transmission components and the force-bearing parts, the cleaning mechanism is dynamically triggered during the movement of the sheet metal, efficiently removing surface dust using compressed air. Simultaneously, combined with the coordinated control of the sealing and linkage parts, lubricating oil is precisely sprayed on demand. This technology effectively solves the problem of punch scratches caused by residual particles on the sheet metal surface and insufficient lubrication in traditional processes. Through dual surface treatment (cleaning + lubrication), it significantly reduces frictional damage during bending, improving product surface quality. This invention employs an adjustable transmission component (trapezoidal base + screw adjustment), a positioning part (screw fine-tuning positioning plate), and an auxiliary support part (spring-return T-shaped plate). It allows for rapid adjustment of the cleaning / spraying trigger position, bending limit distance, and support according to the width of the sheet material. For example, the extension length of the trapezoidal plate can be adjusted by rotating the first screw to match different sheet widths, or the position of the positioning plate can be adjusted by the second screw to achieve precise bending dimension control. This modular design breaks through the limitations of traditional fixed structures, achieving efficient compatibility with different sheet material specifications and effectively improving the equipment's versatility and processing accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the platform of the present invention and its structure; Figure 3 This is a schematic diagram of the internal structure of the hollow cylinder of the present invention; Figure 4 This is a schematic diagram of the force-bearing part of the present invention; Figure 5 This is a top sectional view of the platform of this invention; Figure 6 This is the present invention. Figure 5 Top view; Figure 7 This is a partial structural schematic diagram of the liquid spraying mechanism of the present invention; Figure 8 This is the present invention. Figure 7 An enlarged schematic diagram of part A shown in the image; Figure 9 This is a schematic diagram of the auxiliary mechanism of the present invention; Figure 10 This is the present invention. Figure 7 An enlarged schematic diagram of part A shown in the image; Figure 11 This is a top view of the auxiliary mechanism of the present invention; Figure 12 This is a schematic diagram of the transmission component of the present invention; Figure 13 This is a top view of the transmission component of the present invention; Figure 14 This is a schematic diagram of the bending mechanism of the present invention; Figure 15 This is a schematic diagram of the internal structure of the hollow shell of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: 1. Platform; 2. Pushing table; 21. Transmission component; 3. Feeding mechanism; 4. Cleaning mechanism; 41. Jet spraying unit; 42. Force-bearing unit; 5. Spraying mechanism; 51. Spraying unit; 52. Linkage unit; 53. Sealing unit; 6. Auxiliary mechanism; 61. Positioning unit; 62. Lifting unit; 7. Bending mechanism; 211. Trapezoidal base; 212. Trapezoidal plate; 213. Vertical rod; 214. First screw; 31. Mounting cavity; 32. Rotating rod; 33. Threaded block; 34. Guide rod; 35. Motor; 411. Slide rail; 412. Slider; 413. Gas pipeline; 414. Jet nozzle; 415. Hollow tube; 416. Hollow cylinder; 417. Piston plate; 421. N-type seat; 422. Round rod; 423. Round plate; 424. Torsion spring; 425. Load-bearing plate; 511. Storage tank; 512. Infusion cylinder; 513. Infusion tubing; 514. Spray nozzle; 521. First linkage rod; 522. First bevel gear; 523. Screwdriver blade; 524. Stirring rod; 525. Second linkage rod; 526. Transmission gear; 527. Second bevel gear; 531. T-shaped rod; 532. Sealing block; 533. Vertical plate; 534. First spring; 611. Support plate; 612. Movable rod; 613. Positioning plate; 614. Second screw; 621. T-shaped plate; 622. Second spring; 623. Guide groove; 624. Guide block; 625. Third spring; 626. Abutment plate; 627. Crossbar; 71. Support frame; 72. Hydraulic electric push rod; 73. Lifting platform; 74. Punch; 75. Hollow shell; 76. Connecting seat; 77. Fourth spring; 78. First pressure plate; 79. Second pressure plate. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0024] Please see the appendix Figure 1 and Figure 2 As shown, this embodiment provides an adjustable sheet metal bending system for the production of power and communication towers, including a platform 1, a pusher 2 above the platform 1 for pushing the sheet metal to be bent to move, and a transmission component 21 on the pusher 2; Feeding mechanism 3 is installed on platform 1 and is used to drive the push table 2 to move; The cleaning mechanism 4 includes an air jet 41 disposed on the platform 1 and a force-receiving part 42 disposed on the air jet 41. The spraying mechanism 5 includes a spraying part 51 disposed above the platform 1, and a linkage part 52 and a sealing part 53 disposed on the spraying part 51. The auxiliary mechanism 6 includes a positioning part 61 disposed at the end of the platform 1, and a lifting part 62 disposed on the positioning part 61. Bending mechanism 7 is located at the end of platform 1.

[0025] In this embodiment, the feeding mechanism 3 drives the pusher 2 to move, and the pusher 2 pushes the sheet metal to be bent to move downwards towards the bending mechanism 7. When the pusher 2 moves the sheet metal to the cleaning mechanism 4, it blows air onto the surface of the sheet metal through the jet nozzle 41. Through the cooperation of the transmission member 21 and the force receiving member 42, the jet nozzle 41 moves with the sheet metal for a certain distance and continuously blows air to clean the surface of the sheet metal. When the feeding mechanism 3 is in operation, it drives the linkage member 52 to operate. When the sheet metal reaches below the spraying member 51, the transmission member 21 also reaches the sealing member 53. The transmission member 21 causes the sealing member 53 to lose its sealing effect, and the oil is evenly sprayed onto the surface of the sheet metal. The positioning member 61 in the auxiliary mechanism 6 limits the position of the sheet metal, the lifting member 62 lifts the sheet metal, and the bending mechanism 7 bends the sheet metal.

[0026] Secondly, please refer to it again. Figure 12 and Figure 13 The transmission component 21 includes a trapezoidal seat 211, which is fixedly connected to the push table 2 by a support rod. A trapezoidal plate 212 is slidably inserted into one end of the trapezoidal seat 211. A vertical rod 213 is fixedly connected to the top surface of the trapezoidal plate 212. A first screw 214 is threaded onto the trapezoidal seat 211, and one end of the first screw 214 is rotatably connected to the trapezoidal plate 212 through a bearing.

[0027] In this embodiment, rotating the first screw 214 can cause the trapezoidal plate 212 to slide along the trapezoidal base 211, thereby adjusting the length of the trapezoidal plate 212 extending along the trapezoidal base 211 according to the width of the material to be bent.

[0028] Secondly, please refer to the following as well. Figure 5 and Figure 6 The feeding mechanism 3 includes a mounting cavity 31, which is located on the platform 1. A rotating rod 32 is rotatably connected to the mounting cavity 31 via a bearing. A threaded block 33 is sleeved on the outer wall of the rotating rod 32 and is fixedly connected to the push table 2. A guide rod 34 is also fixedly connected to the mounting cavity 31 and is slidably connected to the threaded block 33 and the guide rod 34. A motor 35 is fixedly installed at the end of the platform 1 and the output shaft of the motor 35 is fixedly connected to one end of the rotating rod 32.

[0029] In this embodiment, the sheet material to be bent is placed at the left end of platform 1 (the sheet material can be placed on platform 1 by external equipment, such as a robotic arm or other automatic feeding equipment, which is not limited here), and is located to the right of push table 2. Motor 35 is started, driving the rotating rod 32 to rotate. Because the outer wall of the rotating rod 32 has threads that match the thread block 33, and the rotating rod 32 and the thread block 33 are threadedly connected, the rotation of the rotating rod 32 will cause the thread block 33 to move. The movement of the thread block 33 causes the push table 2 to move, and the movement of the push table 2 pushes the sheet material to be bent to the right.

[0030] Secondly, please refer to it again. Figures 1 to 4 The jet unit 41 includes a slide rail 411, which is fixedly connected to the side of the platform 1. A slider 412 is slidably connected to the slide rail 411. An air supply pipe 413 is fixedly connected to the slider 412 by a support rod. Jet heads 414 are installed in an array at the lower end of the air supply pipe 413. A hollow tube 415 is fixedly connected to the end of the air supply pipe 413. A hollow cylinder 416 is sleeved on one end of the hollow tube 415, and the hollow cylinder 416 is fixedly connected to the platform 1 by a support rod. A piston plate 417 is fixedly sleeved on the outer wall of the hollow tube 415 located inside the hollow cylinder 416. The force-bearing part 42 includes an n-shaped seat 421, which is fixedly connected to the gas pipeline 413. A round rod 422 is rotatably connected to the n-shaped seat 421. A round plate 423 is fixedly connected to the end of the round rod 422. A torsion spring 424 is fixedly connected between the round plate 423 and the n-shaped seat 421. A force-bearing plate 425 is fixedly connected to the round rod 422.

[0031] In this embodiment, the transmission component 21 moves synchronously with the push table 2. When the transmission component 21 moves to the cleaning mechanism 4, the vertical rod 213 on the transmission component 21 contacts the force plate 425 and pushes the force plate 425 to the right. The movement of the force plate 425 to the right drives the round rod 422, the n-shaped seat 421, the air supply pipe 413, the slider 412, and the hollow tube 415 to the right, and the slider 412 slides along the slide rail 411 to ensure the stability of the movement of each component. The movement of the hollow tube 415 drives the piston plate 417 to move along the hollow cylinder 416, compressing the air in the hollow cylinder 416. The compressed air enters the air supply pipe 413 through the hollow tube 415 and is finally ejected from the jet nozzle 414. The ejected gas acts on the surface of the sheet metal to be bent, blowing off the floating dust on the surface of the sheet metal, ensuring the cleanliness of the surface of the sheet metal to be bent, and avoiding scratching the surface of the sheet metal by these fine particles of dust during the bending process.

[0032] When slider 412 moves to its maximum stroke along slide rail 411, slider 412 can no longer move, and force plate 425 can no longer move either. As vertical rod 213 continues to move, the force generated by vertical rod 213 is continuously applied to force plate 425. Subsequently, when the force on force plate 425 becomes too large, it will drive round rod 422 to rotate. The rotation of round rod 422 will drive round plate 423 to rotate, and cause torsion spring 424 to twist. As force plate 425 rotates, vertical rod 213 can move past force plate 425 and continue to move to the right. Similarly, when transmission component 21 returns, it will drive cleaning mechanism 4 to reset, and draw outside air into hollow cylinder 416 with the help of piston plate 417.

[0033] It should be noted that: an air inlet pipe is provided at the end of the hollow cylinder 416 away from the hollow tube 415, and both the end of the air inlet pipe and the end of the hollow tube 415 are equipped with one-way valves. The function of the one-way valve on the air inlet pipe is to allow outside air to enter the hollow cylinder 416 through the air inlet pipe, but not to allow air inside the hollow cylinder 416 to exit through the air inlet pipe; the function of the one-way valve on the hollow tube 415 is to allow air inside the hollow cylinder 416 to enter the hollow tube 415, but not to allow air inside the hollow tube 415 to flow back into the hollow cylinder 416. In addition, the cleaning mechanism 4 is made of lightweight materials to reduce the resistance when the transmission component 21 drives the cleaning mechanism 4 to move.

[0034] The trapezoidal plate 212 can slide along the trapezoidal base 211. By adjusting the length of the trapezoidal plate 212 extending along the trapezoidal base 211, the position of the vertical rod 213 can be adjusted. Specifically, the wider the plate, the farther the vertical rod 213 should be from the trapezoidal base 211. This ensures that when the plate to be bent moves to the cleaning mechanism 4, the transmission component 21 can drive the cleaning mechanism 4 to operate in a timely manner, thereby ensuring that the cleaning mechanism 4 can thoroughly clean the plate.

[0035] Please refer to it again. Figure 2 and Figure 7 The spraying unit 51 includes a liquid storage tank 511, which is fixedly connected to the top of the platform 1 by a support rod. The bottom surface of the liquid storage tank 511 is fixedly connected to an infusion cylinder 512, and an infusion tube 513 is connected to the infusion cylinder 512. The lower end of the infusion tube 513 is connected to a spray cover 514, and the lower end of the spray cover 514 has micro-holes arranged in an array.

[0036] In this embodiment, lubricating oil is injected into the storage tank 511, and the lubricating oil can enter the spray nozzle 514 through the infusion cylinder 512 and the infusion pipe 513.

[0037] Please refer to it again. Figure 6 and Figure 7 The linkage 52 includes a first linkage rod 521, which is rotatably connected to the infusion cylinder 512 via a bearing. A first bevel gear 522 is installed at the lower end of the first linkage rod 521, and an auger blade 523 and a stirring rod 524 are fixedly installed at the upper end of the first linkage rod 521. A second linkage rod 525 is also rotatably connected to the platform 1 via a bearing. A transmission gear 526 is installed at one end of the second linkage rod 525 and the rotating rod 32, and a second bevel gear 527 is installed at the other end of the second linkage rod 525.

[0038] Please refer to it again. Figure 8The sealing part 53 includes a T-shaped rod 531, which is piston-type inserted into the end of the spray cover 514. One end of the T-shaped rod 531 is fixedly connected to a sealing block 532. A vertical plate 533 is fixedly connected to the top surface of the inner cavity of the spray cover 514. A first spring 534 is fixedly connected between the vertical plate 533 and the sealing block 532.

[0039] In this embodiment, the transmission gear 526 on the rotating rod 32 and the transmission gear 526 on the second linkage rod 525 are driven by a toothed belt, thereby causing the second linkage rod 525 to rotate synchronously with the rotating rod 32. The rotation of the second linkage rod 525 drives the second bevel gear 527 to rotate, and the second bevel gear 527 meshes with the first bevel gear 522 to drive the first linkage rod 521 to rotate. The rotation of the first linkage rod 521 drives the auger blade 523 and the stirring rod 524 to rotate. The stirring rod 524 rotates to stir the lubricating oil in the storage tank 511 to prevent the lubricating oil from being static for a long time and causing stratification. When the auger blade 523 rotates, it drives the lubricating oil to move downward and enter the spray nozzle 514 along the infusion pipe 513 (in the initial state, because the sealing part 53 seals the lower end of the infusion pipe 513, even if the auger blade 523 rotates, it cannot transfer the lubricating oil into the spray nozzle 514).

[0040] When the transmission component 21 moves to the position of the spraying mechanism 5, the movement of the trapezoidal seat 211 and trapezoidal plate 212 applies a force to the T-shaped rod 531, causing it to move into the spray hood 514. As the T-shaped rod 531 moves, it drives the sealing block 532 to move and compresses the first spring 534. After the sealing block 532 moves, the lower end of the infusion pipe 513 is no longer blocked. At this time, when the auger blade 523 rotates and pushes the lubricating oil downwards, the lubricating oil can enter the spray hood 514 through the infusion pipe 513. The newly entered lubricating oil compresses the lubricating oil inside the spray hood 514, allowing it to be sprayed out through the micro-holes at the lower end of the spray hood 514, and the sprayed lubricating oil acts on the surface of the plate.

[0041] It should be noted that the lower end of the spray nozzle 514 has micro-holes with a small diameter. Without external force compressing the original lubricating oil inside the spray nozzle 514, the lubricating oil cannot be sprayed out through the micro-holes. Furthermore, the first bevel gear 522 and the first linkage rod 521 are connected via a ratchet-pawl structure to achieve unidirectional transmission. This means that the first linkage rod 521 will only rotate with the first bevel gear 522 when the rotating rod 32 rotates and drives the screw block 33 to move to the right; conversely, when the rotating rod 32 reverses and drives the screw block 33 to reset, the first linkage rod 521 will not rotate, and therefore the auger blade 523 will not rotate either. When the transmission component 21 returns, although the trapezoidal seat 211 and trapezoidal plate 212 will still push the T-shaped rod 531 and the sealing block 532 to move, causing the lower end of the infusion tube 513 to lose its seal, the auger blade 523 will not push the lubricating oil to flow at this time. Therefore, no lubricating oil will be sprayed out during the return stroke of transmission component 21, which reduces lubricating oil waste and minimizes pollution to the surrounding working environment. Furthermore, the length of R should be equal to the width of the sheet metal (e.g., ...). Figure 13 As shown, when the plate moves below the spraying mechanism 5, the protrusion on the transmission component 21 can apply pressure to the sealing part 53, causing the sealing part 53 to move and allowing the lubricating oil to be sprayed out. When the plate passes the spraying mechanism 5, the sealing part 53 resets and seals the lower end of the infusion pipe 513, at which point the oil spraying stops, thereby realizing that the amount of oil sprayed varies with the width of the plate, reducing the waste of lubricating oil.

[0042] Ratchet-Pawl Structure: The first bevel gear 522 is rotatably connected to the lower end of the first linkage rod 521 via a bearing. A ring is fixedly connected to the first bevel gear 522. Pawls are hinged in a ring-shaped arrangement on the inner wall of the ring. A metal spring is fixedly connected between the pawls and the ring. A ratchet is fixedly connected to the lower end of the first linkage rod 521, located inside the ring.

[0043] Please refer to it again. Figure 9 and Figure 11 The positioning part 61 includes a support plate 611, which is fixedly connected to the end of the platform 1 by a support rod. A movable rod 612 is slidably inserted into the support plate 611. A positioning plate 613 is fixedly connected to one end of the movable rod 612. A second screw 614 is threadedly connected to the support plate 611, and one end of the second screw 614 is rotatably connected to the positioning plate 613 through a bearing.

[0044] In this embodiment, the pusher 2 moves the sheet material until it contacts the positioning plate 613, and then stops moving. The positioning plate 613 is moved by rotating the second screw 614, thereby adjusting its position. The distance between the positioning plate 613 and the end of the platform 1 should be equal to the required bending width of the sheet material to ensure bending accuracy.

[0045] Please refer to it again. Figures 9 to 11 The lifting part 62 includes a T-shaped plate 621, which is slidably inserted into the positioning plate 613. A second spring 622 is fixedly connected between the T-shaped plate 621 and the positioning plate 613. A guide groove 623 is provided at the end of the positioning plate 613. A guide block 624 is slidably connected in the guide groove 623. A third spring 625 is fixedly connected to the bottom surface of the guide block 624, and the lower end of the third spring 625 is fixedly connected to the inner wall of the guide groove 623. An abutment plate 626 is fixedly connected to the guide block 624, and a crossbar 627 is fixedly connected to the T-shaped plate 621.

[0046] Please refer to it again. Figure 14 and Figure 15 The bending mechanism 7 includes a support frame 71, which is located at the end of the platform 1. A hydraulic electric push rod 72 is installed on the support frame 71. A lifting platform 73 is fixedly connected to the lower end of the hydraulic electric push rod 72. A punch 74 is installed at the lower end of the lifting platform 73. Hollow shells 75 are fixedly connected to both sides of the lifting platform 73. A connecting seat 76 is slidably inserted into the lower end of the hollow shell 75. A fourth spring 77 is fixedly connected between the connecting seat 76 and the hollow shell 75. The lower ends of the two connecting seats 76 are respectively connected to a first pressure plate 78 and a second pressure plate 79.

[0047] In this embodiment, after the plate moves to contact the positioning plate 613, the other side of the plate is supported by the T-shaped plate 621 to prevent it from deflecting or falling under its own weight.

[0048] During the bending operation of the sheet metal, the hydraulic electric actuator 72 extends, causing the lifting platform 73, punch 74, and the hollow shells 75 on both sides to move downwards synchronously. Before the punch 74 contacts the sheet metal and begins the bending operation, the first pressure plate 78 first contacts the sheet metal, applying pressure to one side to ensure the stability of the sheet metal during bending. As the lifting platform 73 continues to move the punch 74 downwards and bends the sheet metal, the first pressure plate 78 cannot move further downwards, causing the connecting seat 76 to retract into the hollow shell 75 and compress the fourth spring 77. As the fourth spring 77 is compressed, the pressure applied by the first pressure plate 78 to the sheet metal increases accordingly, thereby improving the stability of the sheet metal during bending.

[0049] Before the punch 74 contacts the sheet metal to perform the bending operation, the second pressure plate 79 applies downward pressure to the abutment plate 626, causing the abutment plate 626 to move downward. The downward movement of the abutment plate 626 causes the guide block 624 to slide downward along the guide groove 623, while compressing the third spring 625. As the abutment plate 626 continues to move downward, it applies a force to the crossbar 627, pushing the crossbar 627 to move away from the positioning plate 613. The movement of the crossbar 627 then causes the T-shaped plate 621 to move and stretches the second spring 622. When the side of the sheet metal on the platform 1 is pressed down by the first pressure plate 78 and the bending operation has not yet started, the side of the sheet metal to be bent loses its supporting function, thus facilitating the subsequent bending work. When the second pressure plate 79 moves the abutment plate 626 to its maximum stroke, it causes the connecting seat 76 to retract into the hollow shell 75 and compress the fourth spring 77.

[0050] After the bending operation is completed, the hydraulic electric push rod 72 is operated to shorten, causing the lower part to move upward. Subsequently, the contact plate 626, under the loss of pressure, is reset by the restoring force of the third spring 625; the T-shaped plate 621 is reset by the restoring force of the second spring 622. At this time, the plate falls off the platform 1 due to its own gravity and is collected by subsequent external equipment. If the dimension of one side of the bent plate is smaller than that of the other side, and the plate cannot be removed from the platform 1 by its own gravity alone, the feeding mechanism 3 can be controlled to move the boss to the right for a further stroke, pushing the plate off the platform 1.

[0051] The working principle of this invention is as follows: The system drives the pusher table 2 to move via the feeding mechanism 3, which in turn pushes the sheet metal towards the bending mechanism 7. During this movement, the sheet metal passes sequentially through the cleaning mechanism 4 and the spraying mechanism 5. The cleaning mechanism 4 uses an air jet nozzle 414 to spray gas to clean the sheet metal surface, while the spraying mechanism 5, activated by the transmission component 21 of the pusher table 2, evenly sprays lubricating oil onto the sheet metal surface to reduce friction during bending. When the sheet metal reaches the end of the platform 1, the positioning part 61 in the auxiliary mechanism 6 precisely positions the bending position, and the lifting part 62 prevents the sheet metal from shifting or sagging. Subsequently, the hydraulic electric push rod 72 of the bending mechanism 7 drives the punch 74 to press down and complete the bending operation, while the pressure plate system ensures the stability of the sheet metal during bending. Through the linkage control between the various mechanisms, the system achieves automated operation of sheet metal cleaning, lubrication, positioning, and bending, improving processing efficiency and bending accuracy. It also has an adjustment function to adapt to different sheet metal widths, enhancing the applicability and flexibility of the equipment.

[0052] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. An adjustable sheet metal bending system for the production of power and communication towers, characterized in that: It includes a platform, with a pusher on top of the platform for moving the sheet material to be bent, and a transmission component on the pusher. The feeding mechanism is set on the platform and is used to drive the movement of the pusher. The cleaning mechanism includes a jetting unit mounted on a platform and a force-bearing unit mounted on the jetting unit. The liquid spraying mechanism includes a liquid spraying section disposed above the platform, and a linkage section and a sealing section disposed on the liquid spraying section; The auxiliary mechanism includes a positioning part disposed at the end of the platform and a lifting part disposed on the positioning part; The bending mechanism is located at the end of the platform.

2. The adjustable sheet metal bending system for power and communication tower production according to claim 1, characterized in that: The transmission component includes a trapezoidal seat, which is fixedly connected to the push platform by a support rod. A trapezoidal plate is slidably inserted into one end of the trapezoidal seat, and a vertical rod is fixedly connected to the top surface of the trapezoidal plate. A first screw is threaded onto the trapezoidal seat, and one end of the first screw is rotatably connected to the trapezoidal plate through a bearing.

3. The adjustable sheet metal bending system for power and communication tower production according to claim 1, characterized in that: The feeding mechanism includes a mounting cavity, which is located on the platform. A rotating rod is rotatably connected to the mounting cavity via a bearing. A screw block is fitted on the outer wall of the rotating rod and is fixedly connected to the push table. A guide rod is also fixedly connected to the mounting cavity, and the screw block is slidably connected to the guide rod. A motor is fixedly installed at the end of the platform, and the output shaft of the motor is fixedly connected to one end of the rotating rod.

4. The adjustable sheet metal bending system for power and communication tower production according to claim 1, characterized in that: The jet unit includes a slide rail, which is fixedly connected to the side of the platform. A slider is slidably connected to the slide rail, and an air supply pipe is fixedly connected to the slider by a support rod. Jet heads are installed in an array at the lower end of the air supply pipe. A hollow tube is fixedly connected to the end of the air supply pipe. A hollow cylinder is fitted at one end of the hollow tube, and the hollow cylinder is fixedly connected to the platform by a support rod. A piston plate is fixedly fitted on the outer wall of the hollow tube located inside the hollow cylinder. The force-bearing part includes an n-shaped seat, which is fixedly connected to the gas pipeline. A round rod is rotatably connected to the n-shaped seat. A round plate is fixedly connected to the end of the round rod. A torsion spring is fixedly connected between the round plate and the n-shaped seat. A force-bearing plate is fixedly connected to the round rod.

5. The adjustable sheet metal bending system for power and communication tower production according to claim 3, characterized in that: The spraying unit includes a liquid storage tank, which is fixedly connected to the top of the platform by a support rod. An infusion cylinder is fixedly connected to the bottom surface of the liquid storage tank, and an infusion tube is connected to the infusion cylinder. The lower end of the infusion tube is connected to a spray hood, and the lower end of the spray hood has micro-holes arranged in an array.

6. The adjustable sheet metal bending system for power and communication tower production according to claim 5, characterized in that: The linkage includes a first linkage rod, which is rotatably connected to the infusion cylinder via a bearing. A first bevel gear is installed at the lower end of the first linkage rod, and an auger blade and a stirring rod are fixedly installed at the upper end of the first linkage rod. A second linkage rod is also rotatably connected to the platform via a bearing. A transmission gear is installed at one end of both the second linkage rod and the rotating rod, and a second bevel gear is installed at the other end of the second linkage rod.

7. The adjustable sheet metal bending system for power and communication tower production according to claim 5, characterized in that: The sealing part includes a T-shaped rod, which is piston-type inserted into the end of the spray hood. A sealing block is fixedly connected to one end of the T-shaped rod. A vertical plate is fixedly connected to the top surface of the inner cavity of the spray hood. A first spring is fixedly connected between the vertical plate and the sealing block.

8. The adjustable sheet metal bending system for power and communication tower production according to claim 1, characterized in that: The positioning part includes a support plate, which is fixedly connected to the end of the platform by a support rod. A movable rod is slidably inserted into the support plate, and a positioning plate is fixedly connected to one end of the movable rod. A second screw is threadedly connected to the support plate, and one end of the second screw is rotatably connected to the positioning plate through a bearing.

9. The adjustable sheet metal bending system for power and communication tower production according to claim 8, characterized in that: The lifting part includes a T-shaped plate, which is slidably inserted into a positioning plate. A second spring is fixedly connected between the T-shaped plate and the positioning plate. A guide groove is provided at the end of the positioning plate. A guide block is slidably connected in the guide groove. A third spring is fixedly connected to the bottom surface of the guide block, and the lower end of the third spring is fixedly connected to the inner wall of the guide groove. An abutment plate is fixedly connected to the guide block, and a crossbar is fixedly connected to the T-shaped plate.

10. The adjustable sheet metal bending system for power and communication tower production according to claim 1, characterized in that: The bending mechanism includes a support frame located at the end of the platform. A hydraulic electric push rod is mounted on the support frame. A lifting platform is fixedly connected to the lower end of the hydraulic electric push rod. A punch is mounted on the lower end of the lifting platform. Hollow shells are fixedly connected to both sides of the lifting platform. Connecting seats are slidably inserted into the lower end of the hollow shells. A fourth spring is fixedly connected between the connecting seats and the hollow shells. A first pressure plate and a second pressure plate are respectively connected to the lower ends of the two connecting seats.

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