Angle steel flange multi-angle synchronous bending device

By designing a multi-angle synchronous bending device for angle steel flanges, and utilizing the combination of a motor-driven bidirectional threaded rod and a hydraulic cylinder, the device enables multi-angle positioning and bending of angle steel flanges. This solves the problem of loosening of angle steel flanges in vibrating environments and improves the stability of the connection and the flexibility of processing.

CN224195769UActive Publication Date: 2026-05-05HEILONGJIANG SECOND CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEILONGJIANG SECOND CONSTR ENG CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In existing technologies, angle steel flanges are prone to loosening in vibration or long-term use environments, resulting in decreased connection tightness and stability, and making efficient fixing impossible.

Method used

Design a multi-angle synchronous bending device for angle steel flanges. The device uses a motor to drive a bidirectional threaded rod, a hydraulic cylinder, and a gear meshing structure to achieve multi-angle positioning and bending of the angle steel flanges. It is then fixed by bolt connection or welding.

Benefits of technology

It improves the positioning accuracy and processing flexibility of angle steel flanges, ensures the stability and applicability of the system structure, and adapts to the processing needs of angle steel flanges of different materials and specifications.

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Abstract

The utility model relates to the technical field of angle steel flanges, and discloses an angle steel flange multi-angle synchronous bending device which comprises a bottom plate, sliding blocks penetrate through and are slidably connected to the two sides of the front end of the top of the bottom plate, a rack is fixedly connected to the middle of the top of each sliding block, and bolts are connected to the two sides of the top of each sliding block in a threaded mode. A support is fixedly connected to the two sides of the top of the bottom plate, a first motor is fixedly connected to one side of the support, a first two-way threaded rod is fixedly connected to the output end of the first motor, and connecting frames are in threaded connection to the two sides of the outer ring of the first two-way threaded rod. According to the angle steel flange positioning device, through cooperation of the first motor, the first bidirectional threaded rod, the connecting frame, the rotating plate, the top plate, the spring, the extrusion plate, the angle steel flange, the rotating shaft, the first gear, the rack, the sliding block and the bolt, preliminary positioning of the angle steel flange in the horizontal direction is achieved, the positioning accuracy is improved, and a stable foundation is provided for follow-up bending operation.
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Description

Technical Field

[0001] This utility model relates to the field of angle steel flange technology, specifically to a multi-angle synchronous bending device for angle steel flanges. Background Technology

[0002] Angle steel flanges are flanges made from angle steel through welding or bolting. They are typically made of equal or unequal angle steel and are named for their "L"-shaped cross-section. They are commonly used connecting components in ventilation ducts, steel structures, and other engineering projects. In ventilation and air conditioning systems, they are used to connect ducts, ensuring the sealing and stability of the duct connections. In steel structures, they enable reliable connections between components. Angle steel flanges are characterized by high strength, good rigidity, and convenient installation. They can be customized according to actual project needs and are widely used in many fields, including industrial and civil construction.

[0003] In existing technologies, there are several methods for fixing angle steel flanges. One common method is bolted connection. Bolts are inserted into the connection holes of the angle steel flange and tightened with nuts to secure the flange to other components. This method is relatively convenient for installation and disassembly and provides reliable connection strength. Another method is welding. Welding is used to weld the angle steel flange to the connecting components to form a strong connection. The advantages of welding are high connection strength and good sealing performance, but the disadvantages are that it is not easy to disassemble and requires a high level of welding skill.

[0004] Although installation and disassembly are convenient, bolts may loosen in environments with high vibration or long-term use, affecting the tightness and stability of the connection. Regular inspection and tightening are required, making it impossible to efficiently fix angle steel flanges. To address these issues, a multi-angle synchronous bending device for angle steel flanges is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a multi-angle synchronous bending device for angle steel flanges, which solves the problem of inefficient fixing of angle steel flanges in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-angle synchronous bending device for angle steel flanges, comprising a base plate, with sliders slidably connected through both sides of the top front end of the base plate, a rack fixedly connected to the top center of the slider, bolts threadedly connected to both sides of the top of the slider, brackets fixedly connected to both sides of the top of the base plate, a first motor fixedly connected to one side of the bracket, a first bidirectional threaded rod fixedly connected to the output end of the first motor, connecting frames threadedly connected to both sides of the outer ring of the first bidirectional threaded rod, a rotating plate rotatably connected to the inner wall of the connecting frame, a top plate fixedly connected to the top of the rotating plate, springs fixedly connected to the top of the inner wall of the top plate, a pressing plate fixedly connected to the bottom of the springs, a rotating shaft through and fixedly connected to the front end of the rotating plate, a first gear fixedly connected to one end of the rotating shaft, and the first gear meshing with the rack, a bottom hydraulic cylinder fixedly connected to the bottom of the inner wall of the base plate, and an adjustment component provided at the output end of the bottom hydraulic cylinder.

[0007] By adopting the above technical solution, the rack moves in the groove of the base plate via the slider. The position of the slider can be fixed by rotating the bolt. The movement of the rack can adjust the rotation angle of the first gear.

[0008] As a further description of the above technical solution: the adjustment component includes a fixing plate, which is fixedly connected to the output end of the bottom hydraulic cylinder. Fixing blocks are fixedly connected to both sides of the top of the fixing plate. A second motor is fixedly connected to one side of one of the fixing blocks. A second bidirectional threaded rod is fixedly connected to the output end of the second motor. Slide plates are threadedly connected to both sides of the outer ring of the second bidirectional threaded rod. A first limiting plate is rotatably connected to the inner wall of the slide plate. Connecting blocks are rotatably connected to both ends of the top of the slide plates on both sides. A top hydraulic cylinder is fixedly connected to the top of the bracket.

[0009] By adopting the above technical solution, the slide plate has a built-in nut pair, and the rotation of the second bidirectional threaded rod causes the slide plate to move inward or outward simultaneously.

[0010] As a further description of the above technical solution: the output end of the top hydraulic cylinder is fixedly connected to a frame, and a worm gear is rotatably connected through one side of the frame.

[0011] By adopting the above technical solution, the top hydraulic cylinder can be driven to move the frame up and down.

[0012] As a further description of the above technical solution: both ends of the inner wall of the frame are connected to a second limiting plate through and rotatably, and the outer ring of the second limiting plate is connected to a second gear through and fixedly.

[0013] By adopting the above technical solution, the rotation of the second gear drives the second limiting plate to rotate synchronously.

[0014] As a further description of the above technical solution: a worm gear is fixedly connected to one end of the second limiting plate on one side, and the worm gear is meshed with the worm.

[0015] By adopting the above technical solution, the meshing between the worm and the worm wheel has self-locking properties.

[0016] As a further description of the above technical solution: a control panel is provided in the middle of the front end of the base plate.

[0017] By adopting the above technical solution, the degree of bending of the angle steel flange can be easily observed through the control panel.

[0018] As a further description of the above technical solution: the outer ring of the first bidirectional threaded rod passes through and is rotatably connected to a limiting block, and the bottom of the limiting block is fixedly connected to the base plate.

[0019] By adopting the above technical solution, the limiting block can limit the position of the first bidirectional threaded rod.

[0020] As a further step in the above technical solution: an angle steel flange is provided between the two rotating plates.

[0021] By adopting the above technical solution, angle steel flanges are used as a connection medium to reliably fix air ducts, steel structure components and other components together through bolting or welding, thereby ensuring the stability of the system structure.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. The present invention provides a multi-angle synchronous bending device for angle steel flanges. Firstly, through the cooperation of a first motor, a first bidirectional threaded rod, a connecting frame, a rotating plate, a top plate, a spring, a pressing plate, an angle steel flange, a rotating shaft, a first gear, a rack, a slider, and bolts, the angle steel flange can be easily bent at multiple angles, meeting the processing requirements of different angles, improving the flexibility and diversity of processing, achieving the initial positioning of the angle steel flange in the horizontal direction, improving the positioning accuracy, and providing a stable foundation for subsequent bending operations.

[0024] 2. The multi-angle synchronous bending device for angle steel flanges provided by this utility model ensures smooth bending process through the cooperation of the bottom hydraulic cylinder, fixed plate, fixed block, second motor, second bidirectional threaded rod, sliding plate, first limiting plate, connecting block, top hydraulic cylinder, frame, second limiting plate, second gear, worm gear, and worm. The pressure can be adjusted according to the material and specifications of different angle steel flanges, which improves the applicability of the device and greatly enhances the flexibility and accuracy of bending angle, thus meeting the complex and diverse bending processing requirements of angle steel flanges. Attached Figure Description

[0025] Figure 1 This is a perspective view of the present utility model;

[0026] Figure 2 This is a sectional perspective view of the connecting frame of this utility model;

[0027] Figure 3 This is a three-dimensional sectional view of the base plate of this utility model;

[0028] Figure 4 This is a sectional perspective view of the frame of this utility model;

[0029] Figure 5 This is a schematic diagram of the limiting block of this utility model.

[0030] Legend:

[0031] 1. Base plate; 2. Bracket; 3. First motor; 4. First double-threaded rod; 5. Connecting frame; 6. Rotating plate; 7. Top plate; 8. Spring; 9. Extrusion plate; 10. Angle steel flange; 11. Rotating shaft; 12. First gear; 13. Rack; 14. Slider; 15. Bolt; 16. Bottom hydraulic cylinder; 17. Fixing plate; 18. Fixing block; 19. Second motor; 20. Second double-threaded rod; 21. Slide plate; 22. First limiting plate; 23. Connecting block; 24. Top hydraulic cylinder; 25. Frame; 26. Second limiting plate; 27. Second gear; 28. Worm gear; 29. ​​Worm; 30. Control panel; 31. Limiting block. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.

[0034] Reference Figure 1 and Figure 5 This utility model discloses a multi-angle synchronous bending device for angle steel flanges, including a base plate 1. A control panel 30 is provided in the middle of the front end of the base plate 1. The control panel 30 can be used to control the motor inside the device. A first bidirectional threaded rod 4 passes through and is rotatably connected to a limit block 31 in the middle of its outer ring. The first bidirectional threaded rod 4 rotates in the limit block 31, and the bottom of the limit block 31 is fixedly connected to the base plate 1. An angle steel flange 10 is provided between the two rotating plates 6 on both sides.

[0035] Reference Figure 1 and Figure 2 A slider 14 is slidably connected to both sides of the top front end of the base plate 1. A rack 13 is fixedly connected to the middle of the top of the slider 14. The movement of the slider 14 causes the rack 13 to move synchronously. Bolts 15 are threaded to both sides of the top of the slider 14. The fixing of the slider 14 can be released by rotating the bolts. A bracket 2 is fixedly connected to both sides of the top of the base plate 1. A first motor 3 is fixedly connected to one side of the bracket 2. A first bidirectional threaded rod 4 is fixedly connected to the output end of the first motor 3. The first motor 3 drives the rotation of the first bidirectional threaded rod 4. Connecting frames 5 are threaded to both sides of the outer ring of the first bidirectional threaded rod 4. The rotation of the first bidirectional threaded rod 4 causes the connecting frames 5 to move relative to each other. A rotating plate 6 is rotatably connected to the inner wall of the connecting frame 5. A top plate 7 is fixedly connected to the bottom plate 1. Springs 8 are fixedly connected to the top of the inner wall of the top plate 7. A pressing plate 9 is fixedly connected to the bottom of the springs 8. When the pressure of the springs 8 is released, the pressing plate 9 can move downward. The pressing plate can fix the inner angle of the angle steel flange 10. A rotating shaft 11 is fixedly connected to the front end of the rotating plate 6. A first gear 12 is fixedly connected to one end of the rotating shaft 11. The rotation of the first gear 12 causes the rotating shaft 11 to rotate synchronously. The first gear 12 is meshed with the rack 13. When the rack 13 is fixed, the first gear 12 rotates as it moves on top of the rack 13. A bottom hydraulic cylinder 16 is fixedly connected to the bottom of the inner wall of the bottom plate 1. An adjustment component is provided at the output end of the bottom hydraulic cylinder 16.

[0036] Reference Figure 3 and Figure 4 The adjustment assembly includes a fixed plate 17, which is fixedly connected to the output end of the bottom hydraulic cylinder 16. Fixed blocks 18 are fixedly connected to both sides of the top of the fixed plate 17. A second motor 19 is fixedly connected to one side of one fixed block 18, limiting the position of the second motor 19. A second bidirectional threaded rod 20 is fixedly connected to the output end of the second motor 19. The drive of the second motor 19 causes the second bidirectional threaded rod 20 to rotate. Slide plates 21 are threadedly connected to both sides of the outer ring of the second bidirectional threaded rod 20. A first limiting plate 22 is rotatably connected to the inner wall of the slide plate 21. Movement of the slide plate 21 causes the first limiting plate 22 to swing. Connecting blocks 23 are rotatably connected to both ends of the top of the two slide plates 21. Two slide plates 21 are connected by connecting block 23. A top hydraulic cylinder 24 is fixedly connected to the top of bracket 2. A frame 25 is fixedly connected to the output end of the top hydraulic cylinder 24. The drive of the top hydraulic cylinder 24 causes the frame 25 to move up and down. A worm gear 29 is rotatably connected through one side of the frame 25. A second limiting plate 26 is rotatably connected through both ends of the inner wall of the frame 25. A second gear 27 is rotatably connected through the outer ring of the second limiting plate 26. The two second gears 27 are meshed with each other and rotate in opposite directions. A worm wheel 28 is fixedly connected to one end of the second limiting plate 26 on one side. The worm wheel 28 is meshed with the worm gear 29. The worm wheel 28 cannot drive the worm gear 29 to rotate.

[0037] Working principle: The angle steel flange 10 is placed inside the rotating plate 6. The spring 8 on the top of the inner wall of the top plate 7 allows the extrusion plate 9 to adaptively press the angle steel flange 10, initially fixing it in the vertical direction. The first motor 3 starts, and its output end drives the first bidirectional threaded rod 4 to rotate. Since the threads on both sides of the outer ring of the first bidirectional threaded rod 4 rotate in opposite directions, the connecting frame 5 connected to it will move in opposite directions in the horizontal direction. The connecting frame 5 drives the rotating plate 6, top plate 7, extrusion plate 9 and other components to move, realizing the initial positioning of the angle steel flange 10 in the horizontal direction. During the movement of the first gear 12, when the first gear 12 passes the rack 13, it causes the first gear 12 to rotate. The rotation of the first gear 12 drives the rotating plate 6 to rotate through the rotating shaft 11, thereby facilitating the bending of the angle steel flange 10. Bottom hydraulic cylinder 16 The output end pushes the fixed plate 17 to rise or fall, the second motor 19 starts, and drives the second bidirectional threaded rod 20 to rotate, so that the slide plate 21 connected to it moves horizontally. The slide plate 21 drives the first limit plate 22, connecting block 23 and other components to further assist in adjusting the position and angle of the angle steel flange 10, in preparation for bending. The output end of the top hydraulic cylinder 24 pushes the frame 25 to move downward. The frame 25 drives the second limit plate 26 and other components to apply vertical pressure to the angle steel flange 10. By rotating the worm gear 29, it meshes with the worm wheel 28, driving the second limit plate 26 on one side to rotate. At the same time, the second gear 27 drives the second limit plate 26 on the other side to rotate, realizing the fine adjustment of the angle of the second limit plate 26. During the downward pressing of the frame 25, in conjunction with the angle of the rotating plate 6, the angle steel flange 10 is bent synchronously at multiple angles.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-angle synchronous bending device for angle steel flanges, comprising a base plate (1), characterized in that: The base plate (1) has sliders (14) that slide through and are slidably connected to both sides of the top front end. A rack (13) is fixedly connected to the middle of the top of the slider (14). Bolts (15) are threadedly connected to both sides of the top of the slider (14). A bracket (2) is fixedly connected to both sides of the top of the base plate (1). A first motor (3) is fixedly connected to one side of the bracket (2). A first bidirectional threaded rod (4) is fixedly connected to the output end of the first motor (3). Connecting frames (5) are threadedly connected to both sides of the outer ring of the first bidirectional threaded rod (4). The inner wall of the connecting frame (5) rotates. A rotating plate (6) is connected to the top of the rotating plate (6), and a top plate (7) is fixedly connected to the top of the inner wall of the top plate (7). A spring (8) is fixedly connected to the top of the inner wall of the spring (8), and a pressing plate (9) is fixedly connected to the bottom of the spring (8). A rotating shaft (11) is fixedly connected to the front end of the rotating plate (6), and a first gear (12) is fixedly connected to one end of the rotating shaft (11). The first gear (12) is meshed with a rack (13). A bottom hydraulic cylinder (16) is fixedly connected to the bottom of the inner wall of the bottom plate (1), and an adjustment component is provided at the output end of the bottom hydraulic cylinder (16).

2. The multi-angle synchronous bending device for angle steel flanges according to claim 1, characterized in that: The adjustment assembly includes a fixed plate (17), which is fixedly connected to the output end of the bottom hydraulic cylinder (16). Fixed blocks (18) are fixedly connected to both sides of the top of the fixed plate (17). A second motor (19) is fixedly connected to one side of the fixed block (18). A second bidirectional threaded rod (20) is fixedly connected to the output end of the second motor (19). Slide plates (21) are threadedly connected to both sides of the outer ring of the second bidirectional threaded rod (20). A first limiting plate (22) is rotatably connected to the inner wall of the slide plate (21). Connecting blocks (23) are rotatably connected to both ends of the top of the slide plates (21) on both sides. A top hydraulic cylinder (24) is fixedly connected to the top of the bracket (2).

3. The multi-angle synchronous bending device for angle steel flanges according to claim 2, characterized in that: The output end of the top hydraulic cylinder (24) is fixedly connected to a frame (25), and a worm gear (29) is rotatably connected through one side of the frame (25).

4. The multi-angle synchronous bending device for angle steel flanges according to claim 3, characterized in that: The inner walls of the frame (25) are connected to the second limiting plate (26) through and rotatably, and the outer ring of the second limiting plate (26) is connected to the second gear (27) through and fixedly.

5. The multi-angle synchronous bending device for angle steel flanges according to claim 4, characterized in that: One end of the second limiting plate (26) on one side is fixedly connected to a worm wheel (28), and the worm wheel (28) is meshed with the worm (29).

6. The multi-angle synchronous bending device for angle steel flanges according to claim 1, characterized in that: The base plate (1) has a control panel (30) located in the middle of its front end.

7. The multi-angle synchronous bending device for angle steel flanges according to claim 1, characterized in that: The first bidirectional threaded rod (4) has a limiting block (31) that is rotatably connected through the middle of its outer ring, and the bottom of the limiting block (31) is fixedly connected to the base plate (1).

8. The multi-angle synchronous bending device for angle steel flanges according to claim 1, characterized in that: An angle steel flange (10) is provided between the two rotating plates (6) on both sides.