Steel bar bending device for constructional engineering
By designing an adjustable-angle bending mechanism and a rebar bending distance adjustment mechanism, the problem that existing devices cannot bend at large angles has been solved, and rebar bending operations with adjustable angles and distances have been realized.
Patent Information
- Application Number
- CN202520341775.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing steel bar bending devices for construction projects cannot meet the needs of large-angle bending and cannot adjust the bending angle of the steel bars.
A bending mechanism with adjustable angle and a rebar bending distance adjustment mechanism were designed. Through components such as a rotating motor, a bidirectional screw, a limit rod, a rotating plate, a bending column, and a bending motor, the rebar can be bent at multiple angles and the distance can be adjusted.
It enables multi-angle bending and distance adjustment of steel bars of different sizes, meeting the needs of large-angle bending, and is simple and intuitive to operate.
Smart Images

Figure CN223970761U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel bar bending technology, and in particular to a steel bar bending device for building engineering. Background Technology
[0002] In existing technologies, such as the steel bar bending device for construction engineering disclosed on the Chinese patent website with publication number CN222094578U, a device with a connecting plate, a second bolt, a limiting rod, a second motor, a lead screw, a second moving block, a fixed rod, and a rotating block can efficiently bend steel bars after they have been clamped and fixed. It is highly practical. After the bending length of the steel bar is adjusted and it is clamped and fixed, the second motor is turned on to drive the lead screw to rotate. At this time, the second moving block will move backward with the rotation of the lead screw, and at the same time, it will drive the fixed rod and the rotating block to move. When the rotating block moves, it will push the steel bar to move. At this time, with the cooperation of the limiting rod, the steel bar will be bent. After the bending is completed, the first motor is reversed to release the clamping of the steel bar, and the steel bar can be removed. It can efficiently bend steel bars after they have been clamped and fixed, is highly practical, and is convenient and quick to operate.
[0003] However, in actual use, the movement of the second moving block drives the movement of the rotating block to bend the steel bars. The bending angle of the steel bars cannot be adjusted, and the maximum bending angle can only be 90°, which cannot meet the requirements for bending steel bars at large angles. Utility Model Content
[0004] Based on the existing technical problems that cannot meet the requirements for bending steel bars at large angles, this utility model proposes a steel bar bending device for building engineering.
[0005] This utility model discloses a steel bar bending device for construction engineering, including support rods, a workbench fixedly installed on the upper part of four support rods, a support plate fixedly installed on the upper part of the workbench, a placement groove opened on the upper surface of the support plate, the arc surface of the placement groove slidingly contacts the steel bar body, an adjustable-angle bending mechanism is provided on the upper part of the workbench, and a steel bar bending distance adjustment mechanism is provided on the upper part of the workbench.
[0006] Preferably, the upper part of the worktable is provided with a sliding groove, and the inner side of the sliding groove is rotatably connected to a bidirectional screw via a ball bearing. The two threaded surfaces of the bidirectional screw are respectively threaded with sliding blocks, and a clamping block is fixedly installed on the upper part of the sliding block. One end of the bidirectional screw passes through and extends out of one side of the worktable, and a rotary motor is fixedly installed on one side of the worktable. The output end of the rotary motor is fixedly connected to one end of the bidirectional screw via a coupling.
[0007] The above technical solution involves setting up a rotating motor, which drives the bidirectional screw to rotate, causing the two sliding blocks to move synchronously towards each other and towards each other. This allows the clamping blocks on the upper part of the two sliding blocks to clamp and fix the steel bar body, preventing the steel bar body from moving during bending.
[0008] Preferably, the adjustable-angle bending mechanism includes a limiting rod, the arc surface of which slides in contact with the arc surface of the reinforcing bar body, and a rotating plate is rotatably connected to the arc surface of the limiting rod via a ball bearing. Adjustment grooves are provided on both sides of the rotating plate, and a movable plate is slidably inserted into the inner wall of each of the two adjustment grooves. A bending column is fixedly installed on the upper part of the movable plate, and a fastening bolt is threadedly connected to one side of the movable plate. One end of the fastening bolt is in pressure contact with the inner wall of one side of the adjustment groove.
[0009] The above technical solution involves setting a limiting rod to limit the bending of the steel bar body, setting a rotating plate, and rotating the rotating plate around the limiting rod to drive the bending column above the rotating plate to rotate around the limiting rod, so that the bending column squeezes the steel bar body to bend it. An adjusting groove and a moving plate are set. The position of the bending column on the rotating plate is adjusted by moving the moving plate along the adjusting groove to meet the bending requirements of steel bars of different sizes. Fastening bolts are set. When the fastening bolts are screwed in, they squeeze into contact with the inner wall of the adjusting groove, so that the moving plate can be fixed in the designated position of the adjusting groove.
[0010] Preferably, the surface of the worktable is provided with an arc groove, the upper surface of the worktable is provided with a rotation angle scale groove, the rotation angle scale groove is located on one side of the arc groove, the lower part of the rotating plate is rotatably connected to a movable column through a ball bearing, the lower part of the worktable is fixedly installed with an internal gear, and the arc surface of the movable column is fixedly connected with a rotating gear, the teeth of the rotating gear meshing with the tooth groove of the internal gear.
[0011] The above technical solution involves setting up a rotating gear and an internal gear. The rotating gear meshes with the internal gear, and the rotation of the rotating gear can move along the internal gear, causing the moving column to slide along the arc groove, and causing the rotating plate to rotate around the limiting rod. A rotation angle scale groove is set up, which allows for convenient and intuitive observation of the bending angle, enabling workers to easily bend steel bars at different bending angles.
[0012] Preferably, an arc-shaped sliding shell is fixedly installed on the lower surface of the workbench, an arc-shaped sliding block is slidably inserted into the inner side wall of the arc-shaped sliding shell, an mounting plate is fixedly installed on the lower surface of the arc-shaped sliding block, the upper surface of the mounting plate is rotatably connected to the lower end of the moving column through a ball bearing, the lower end of the moving column passes through and extends out of the lower part of the mounting plate, a bending motor is fixedly installed on the lower part of the mounting plate, and the output end of the bending motor is fixedly connected to the lower end of the moving column through a coupling.
[0013] The above technical solution involves setting up a bending motor, which drives the moving column and rotating gear to rotate, causing the moving column to move along the arc groove. An arc sliding shell and an arc sliding block are also provided, so that the movement of the moving column causes the arc sliding block to slide along the arc sliding shell, which in turn causes the bending motor to move along with the movement of the moving column.
[0014] Preferably, the rebar bending distance adjustment mechanism includes a fixed plate, a movable groove is provided on the upper surface of the fixed plate, limit posts are fixedly installed on the inner opposite surfaces of the movable groove, an adjusting slider is slidably inserted into the arc surface of the limit post, an abutment plate is fixedly installed on the upper part of the adjusting slider, and a distance scale groove is provided on the upper surface of the fixed plate, the distance scale groove is located on one side of the movable groove.
[0015] The above technical solution involves setting an adjusting slider and a moving groove. The adjusting slider moves back and forth along the moving groove under the limit of the limiting column, causing the abutment plate to slide back and forth, changing the placement distance of the steel bar body. The setting of the distance scale groove allows for convenient and direct adjustment of the moving distance of the abutment plate.
[0016] The beneficial effects of this utility model are as follows:
[0017] 1. By setting an adjustable-angle bending mechanism, the steel bar body can be bent at different angles, allowing workers to easily bend steel bars at different angles and bend steel bars of different sizes. The steel bar bending distance adjustment mechanism allows for convenient adjustment of the bending distance of the steel bars, solving the existing technical problem of not being able to meet the needs of bending steel bars at large angles.
[0018] 2. By setting up a bending motor, starting the bending motor drives the moving column and rotating gear to rotate, causing the moving column to move along the arc groove. An arc sliding shell and an arc sliding block are set up so that the movement of the moving column causes the arc sliding block to slide along the arc sliding shell, which in turn causes the bending motor to move with the movement of the moving column. A rotation angle scale groove is set up so that the bending angle can be easily and intuitively observed, making it convenient for workers to bend steel bars at different bending angles. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of a steel bar bending device for building engineering proposed in this utility model;
[0020] Figure 2 This is an enlarged view of point A of a steel bar bending device for building engineering proposed in this utility model;
[0021] Figure 3 This utility model provides a perspective view of the fixing plate structure of a steel bar bending device for building engineering.
[0022] Figure 4 This utility model provides a perspective view of the arc-shaped sliding shell structure of a steel bar bending device for building engineering.
[0023] Figure 5 This is a three-dimensional view of a movable column structure for a steel bar bending device used in building engineering, as proposed in this utility model.
[0024] In the diagram: 1. Support rod; 2. Workbench; 3. Support plate; 4. Placement slot; 5. Rebar body; 6. Sliding slot; 7. Bidirectional screw; 8. Sliding block; 9. Clamping block; 10. Rotating motor; 11. Limiting rod; 12. Rotating plate; 13. Adjusting slot; 14. Moving plate; 15. Bending column; 16. Fastening bolt; 17. Arc groove; 18. Rotation angle scale groove; 19. Moving column; 20. Internal gear; 21. Rotating gear; 22. Arc sliding shell; 23. Arc sliding block; 24. Mounting plate; 25. Bending motor; 26. Fixing plate; 27. Moving slot; 28. Limiting column; 29. Adjusting slider; 30. Abutment plate; 31. Distance scale groove. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0026] Reference Figures 1-5 A steel bar bending device for construction engineering includes support rods 1, a workbench 2 fixedly installed on the upper part of four support rods 1, a support plate 3 fixedly installed on the upper part of the workbench 2, a placement groove 4 opened on the upper surface of the support plate 3, a steel bar body 5 slidingly contacting the arc surface of the placement groove 4, an adjustable bending mechanism and a steel bar bending distance adjustment mechanism provided on the upper part of the workbench 2.
[0027] The upper part of the worktable 2 is provided with a sliding groove 6. The inner side of the sliding groove 6 is rotatably connected to the opposite side by a ball bearing with a double screw 7. The two sides of the double screw 7 are respectively threaded with sliding blocks 8. A clamping block 9 is fixedly installed on the upper part of the sliding block 8. One end of the double screw 7 passes through and extends out of one side of the worktable 2. A rotary motor 10 is fixedly installed on one side of the worktable 2. The output end of the rotary motor 10 is fixedly connected to one end of the double screw 7 through a coupling.
[0028] By setting up a rotating motor 10, the rotating motor 10 is started to drive the bidirectional screw 7 to rotate, so that the two sliding blocks 8 move synchronously towards each other and towards each other, so that the clamping blocks 9 on the upper part of the two sliding blocks 8 clamp and fix the steel bar body 5, preventing the steel bar body 5 from moving during the bending process.
[0029] The adjustable bending mechanism includes a limiting rod 11. The arc surface of the limiting rod 11 slides in contact with the arc surface of the steel bar body 5. The arc surface of the limiting rod 11 is rotatably connected to a rotating plate 12 via a ball bearing. Adjustment grooves 13 are provided on both sides of the rotating plate 12. Moving plates 14 are slidably inserted into the inner walls of both adjustment grooves 13. A bending column 15 is fixedly installed on the upper part of the moving plate 14. A fastening bolt 16 is threadedly connected to one side of the moving plate 14. One end of the fastening bolt 16 is pressed into contact with the inner wall of one side of the adjustment groove 13.
[0030] A limiting rod 11 is set to limit the bending of the steel bar body 5. A rotating plate 12 is set, which rotates around the limiting rod 11, causing the bending column 15 above the rotating plate 12 to rotate around the limiting rod 11, so that the bending column 15 squeezes the steel bar body 5 to bend. An adjusting groove 13 and a moving plate 14 are set. The position of the bending column 15 on the rotating plate 12 is adjusted by moving the moving plate 14 along the adjusting groove 13 to meet the bending requirements of steel bar bodies 5 of different sizes. A fastening bolt 16 is set. The fastening bolt 16 is screwed in and squeezes into contact with the inner wall of the adjusting groove 13, so that the moving plate 14 can be fixed in the designated position of the adjusting groove 13.
[0031] The surface of the workbench 2 is provided with an arc groove 17, and the upper surface of the workbench 2 is provided with a rotation angle scale groove 18. The rotation angle scale groove 18 is located on one side of the arc groove 17. The lower part of the rotating plate 12 is rotatably connected to the moving column 19 through a ball bearing. The lower part of the workbench 2 is fixedly installed with an internal gear 20. The arc surface of the moving column 19 is fixedly connected with a rotating gear 21. The teeth of the rotating gear 21 mesh with the tooth groove of the internal gear 20.
[0032] By setting a rotating gear 21 and an internal gear 20, the rotating gear 21 meshes with the internal gear 20. The rotation of the rotating gear 21 can move along the internal gear 20, causing the moving column 19 to slide along the arc groove 17, and causing the rotating plate 12 to rotate around the limiting rod 11. The rotation angle scale groove 18 is set so that the bending angle can be easily and intuitively observed, making it convenient for workers to bend steel bars at different bending angles.
[0033] An arc-shaped sliding shell 22 is fixedly installed on the lower surface of the workbench 2. An arc-shaped sliding block 23 is slidably inserted into the inner side wall of the arc-shaped sliding shell 22. An mounting plate 24 is fixedly installed on the lower surface of the arc-shaped sliding block 23. The upper surface of the mounting plate 24 is rotatably connected to the lower end of the moving column 19 through a ball bearing. The lower end of the moving column 19 passes through and extends out of the lower part of the mounting plate 24. A bending motor 25 is fixedly installed on the lower part of the mounting plate 24. The output end of the bending motor 25 is fixedly connected to the lower end of the moving column 19 through a coupling.
[0034] By setting up a bending motor 25, starting the bending motor 25 drives the moving column 19 and the rotating gear 21 to rotate, causing the moving column 19 to move along the arc groove 17. By setting up an arc sliding shell 22 and an arc sliding block 23, the movement of the moving column 19 causes the arc sliding block 23 to slide along the arc sliding shell 22, which in turn causes the bending motor 25 to move along with the movement of the moving column 19.
[0035] The rebar bending distance adjustment mechanism includes a fixed plate 26. A movable groove 27 is provided on the upper surface of the fixed plate 26. Limiting posts 28 are fixedly installed on opposite inner surfaces of the movable groove 27. An adjusting slider 29 is slidably inserted into the arc surface of the limiting post 28. An abutment plate 30 is fixedly installed on the upper part of the adjusting slider 29. A distance scale groove 31 is provided on the upper surface of the fixed plate 26. The distance scale groove 31 is located on one side of the movable groove 27.
[0036] By setting an adjusting slider 29 and a moving groove 27, the adjusting slider 29 moves back and forth along the moving groove 27 under the limit of the limiting column 28, driving the abutment plate 30 to slide back and forth, changing the placement distance of the steel bar body 5. The distance scale groove 31 is set so that the moving distance of the abutment plate 30 can be easily and directly adjusted.
[0037] Working principle: First, the steel bar body 5 to be bent is placed in the placement groove 4 on the support plate 3. Then, the position of the abutment plate 30 in the moving groove 27 is adjusted according to the distance scale groove 31 on the fixed plate 26 to adjust the bending distance of the steel bar body 5. Then, the rotating motor 10 is started to drive the bidirectional screw 7 to rotate, causing the two sliding blocks 8 to drive the two clamping blocks 9 to move in opposite directions, so that the clamping blocks 9 clamp and fix the steel bar body 5 to prevent the steel bar body 5 from moving under force during the bending process. After that, the fastening bolt 16 is unscrewed, so that the moving plate 14 can move freely in the adjustment groove. The moving plate 14 and bending column 15 are adjusted by sliding within the groove 13. Then, the fastening bolt 16 is screwed in to fix the position of the moving plate 14. Finally, the bending motor 25 is started to drive the moving column 19 to rotate, which in turn drives the rotating gear 21 to rotate. The rotating gear 21 rotates along the inner gear 20, which drives the moving column 19 to move along the arc groove 17. This causes the rotating plate 12 to rotate around the limiting rod 11, so that the bending column 15 above the rotating plate 12 rotates around the limiting rod 11 to squeeze the steel bar body 5 and bend the steel bar. The bending angle is adjusted by observing the rotation angle scale groove 18.
[0038] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A reinforcing bar bending device for construction engineering, comprising a support rod (1), characterized in that: The upper part of four supporting rods (1) is fixedly installed with a workbench (2), the upper part of the workbench (2) is fixedly installed with a supporting plate (3), the upper surface of the supporting plate (3) is provided with a placing groove (4), the circular arc surface of the placing groove (4) is in sliding contact with a reinforcing bar body (5), the upper part of the workbench (2) is provided with an adjustable angle bending mechanism, and the upper part of the workbench (2) is provided with a reinforcing bar bending distance adjusting mechanism.
2. The reinforcing bar bending device for constructional engineering according to claim 1, characterized in that: The upper part of the workbench (2) is provided with a sliding groove (6), the inner side of the sliding groove (6) is rotatably connected with a bidirectional screw rod (7) through a ball bearing in opposite faces, the threaded surfaces on the two sides of the bidirectional screw rod (7) are respectively threadedly connected with sliding blocks (8), the upper part of the sliding block (8) is fixedly installed with a clamping block (9), one end of the bidirectional screw rod (7) penetrates through and extends out of one side of the workbench (2), and one side of the workbench (2) is fixedly installed with a rotating motor (10); the output end of the rotating motor (10) is fixedly connected with one end of the bidirectional screw rod (7) through a shaft coupling.
3. The reinforcing bar bending device for constructional engineering according to claim 1, characterized in that: The adjustable angle bending mechanism comprises a limiting rod (11), the circular arc surface of the limiting rod (11) is in sliding contact with the circular arc surface of the reinforcing bar body (5), the circular arc surface of the limiting rod (11) is rotatably connected with a rotating plate (12) through a ball bearing, the two sides of the rotating plate (12) are provided with adjusting grooves (13), the inner side walls of the two adjusting grooves (13) are slidably inserted with moving plates (14), the upper part of the moving plate (14) is fixedly installed with a bending column (15), one side of the moving plate (14) is threadedly connected with a fastening bolt (16), and one end of the fastening bolt (16) is in extrusion contact with the inner wall on one side of the adjusting groove (13).
4. The reinforcing bar bending device for constructional engineering according to claim 3, characterized in that: The surface of the workbench (2) is provided with a circular arc groove (17), the upper surface of the workbench (2) is provided with a rotating angle scale groove (18), the rotating angle scale groove (18) is arranged on one side of the circular arc groove (17), the lower part of the rotating plate (12) is rotatably connected with a moving column (19) through a ball bearing, the lower part of the workbench (2) is fixedly installed with an internal gear (20), the circular arc surface of the moving column (19) is fixedly connected with a rotating gear (21), and the gear teeth of the rotating gear (21) are engaged with the gear grooves of the internal gear (20).
5. The reinforcing bar bending device for constructional engineering according to claim 4, characterized in that: The lower surface of the workbench (2) is fixedly installed with a circular arc sliding shell (22), the inner side wall of the circular arc sliding shell (22) is slidably inserted with a circular arc sliding block (23), the lower surface of the circular arc sliding block (23) is fixedly installed with a mounting plate (24), the upper surface of the mounting plate (24) is rotatably connected with the lower end of the moving column (19) through a ball bearing, the lower end of the moving column (19) penetrates through and extends out of the lower part of the mounting plate (24), the lower part of the mounting plate (24) is fixedly installed with a bending motor (25), and the output end of the bending motor (25) is fixedly connected with the lower end of the moving column (19) through a shaft coupling.
6. The reinforcing bar bending device for constructional engineering according to claim 1, characterized in that: The reinforcing steel bar bending distance adjusting mechanism comprises a fixed plate (26), the upper surface of the fixed plate (26) is provided with a moving groove (27), the opposite sides of the inner side of the moving groove (27) are fixedly installed with limiting columns (28), the circular arc surface of the limiting column (28) is slidingly inserted with an adjusting sliding block (29), the upper part of the adjusting sliding block (29) is fixedly installed with an abutting plate (30), and the upper surface of the fixed plate (26) is provided with a distance scale groove (31); the distance scale groove (31) is arranged on one side of the moving groove (27).
Citation Information
Patent Citations
Steel bar bending device for constructional engineering
CN222094578U
Cited By
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