A reinforcing steel bar straightening device for construction engineering
By using a clamping plate and clamping plate structure in the rebar straightening device, combined with the design of a rotating straightening plate, the problem of insufficient stability of rebar during the straightening process is solved, thereby improving the stability and efficiency of rebar straightening.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HARBIN NO 1 MUNICIPAL PLANNING ENG CO
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-02
Smart Images

Figure CN224309521U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel bar processing technology, and in particular to a steel bar straightening device for building construction. Background Technology
[0002] Steel bars are used for support in construction projects. Steel bars refer to steel used in reinforced concrete and prestressed reinforced concrete.
[0003] To transport reinforcing bars and ensure they are in a coiled state, straightening is necessary during construction. This is done by pressing down on the reinforcing bars using a pressure plate. However, this method has several problems: the reinforcing bars are not supported during straightening, leading to displacement; the pressure plate can only press down from the top, and the shape and size of the bars make it difficult for operators to adjust the straightening direction, thus affecting the efficiency of the straightening process. Utility Model Content
[0004] The purpose of this utility model is to solve the problem that the stability of steel bars cannot be guaranteed during the straightening process in the prior art, and to propose a steel bar straightening device for construction engineering.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A rebar straightening device for building construction includes a processing box with a through hole. Symmetrically arranged support rods are fixedly installed on the processing box, and telescopic rods are fixedly installed on the support rods. A frame is integrally connected between the output ends of the two telescopic rods. A clamping structure for clamping the rebar is provided on the frame. Two straightening plates for straightening the rebar are provided on the processing box via a rotating component, and grooves corresponding to the rebar are provided on the straightening plates.
[0007] Preferably, the clamp structure includes a sleeve and a bracket fixedly installed on the frame, and a movable rod is slidably sleeved inside the sleeve. A spring is welded between the movable rod and the sleeve. A clamping plate for clamping the reinforcing bar is fixedly installed on the movable rod. A motor is fixedly installed on the bracket, and a bidirectional lead screw is fixedly connected to the output end of the motor. Two matching nuts are slidably sleeved on the bidirectional lead screw, and a clamping plate for clamping the reinforcing bar is fixedly installed on the nuts.
[0008] Preferably, the frame and bracket are of the C-shape, the clamp and the moving rod extend to one side outside the sleeve, and the spring is vertically welded.
[0009] Preferably, the sleeve is vertically positioned at both ends of the frame, the bidirectional screw is vertically positioned, the clamping plate and the clamping plate are arc-shaped structures that cooperate with the reinforcing bars, and the clamping plate and the clamping plate are provided with silicone pads that move against the outer wall of the reinforcing bars, and the bracket is slidably fitted with a limiting plate connected to the nut.
[0010] Preferably, the rotating component includes a second motor fixedly mounted on the processing box, and the output end of the second motor is fixedly connected to a first rotating shaft. The processing box is rotatably mounted with a second rotating shaft that is connected to the first rotating shaft in a transmission manner. The straightening plate is disposed on the first rotating shaft and the second rotating shaft.
[0011] Preferably, the first rotating shaft and the second rotating shaft are horizontally arranged correspondingly, and gears one and two that are meshed are fixedly installed on the first rotating shaft and the second rotating shaft, respectively, and the straightening plate is horizontally arranged on both sides of the reinforcing bar.
[0012] Compared with the prior art, the present invention has the following advantages:
[0013] 1. This utility model provides a clamping plate inside the processing box, which can initially clamp the reinforcing bars. The clamping plate can clamp the reinforcing bars from both sides, ensuring the stability of the reinforcing bars during straightening.
[0014] 2. This utility model sets two rotating straightening plates inside the processing box, so that the two straightening plates can press the steel bars when rotating. The gradual contact of the two straightening plates can straighten the steel bars. The grooves on the straightening plates can straighten the steel bars, thereby maintaining the straightness of the steel bars. Attached Figure Description
[0015] Figure 1 This is a sectional view of a steel bar straightening device for building construction proposed in this utility model;
[0016] Figure 2 This is a structural schematic diagram of a steel bar straightening device for building construction proposed in this utility model;
[0017] Figure 3 This is a side sectional view of a steel bar straightening device for building construction proposed in this utility model;
[0018] Figure 4 This is an enlarged schematic diagram of the A-structure of a steel bar straightening device for building construction proposed in this utility model.
[0019] In the diagram: 1. Machining box; 2. Support rod; 3. Telescopic rod; 4. Frame; 5. Motor 1; 6. Two-way lead screw; 7. Nut; 8. Clamping plate; 9. Silicone pad; 10. Sleeve; 11. Moving rod; 12. Spring; 13. Clamping plate; 14. Motor 2; 15. Rotating shaft 1; 16. Rotating shaft 2; 17. Straightening plate; 18. Groove. Detailed Implementation
[0020] 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.
[0021] Reference Figures 1-4 A steel bar straightening device for building construction includes a processing box 1, and the processing box 1 has a through hole.
[0022] Symmetrically arranged support rods 2 are fixedly installed on the processing box 1. Telescopic rods 3 are fixedly installed on the support rods 2. A frame 4 is integrally connected between the output ends of the two telescopic rods 3. A clamping structure for clamping the reinforcing bars is provided on the frame 4. The telescopic rods 3 can move the frame 4 and the reinforcing bars by extending and retracting. During the movement, the reinforcing bars can cooperate with the groove 18 to straighten them.
[0023] The clamp structure includes a sleeve 10 and a bracket fixedly installed on the frame 4. A movable rod 11 is slidably sleeved inside the sleeve 10. A spring 12 is welded between the movable rod 11 and the sleeve 10. A clamping plate 13 for clamping the reinforcing bar is fixedly installed on the movable rod 11. The sleeve 10 guides the movable rod 11 so that the movable rod 11 can smoothly pull the clamping plate 13 when moving.
[0024] The frame 4 and the bracket are of the C-shape. The clamping plate 13 and the moving rod 11 extend to one side outside the sleeve 10. The spring 12 is vertically welded and the spring 12 resets the clamping plate 13. When the clamping plate 13 is in an unloaded state, the spring 12 can bring the clamping plate 13 back to the initial position.
[0025] A motor 5 is fixedly installed on the bracket, and a bidirectional lead screw 6 is fixedly connected to the output end of the motor 5. When the motor 5 is powered on, it drives the bidirectional lead screw 6 to rotate on the bracket. This technical solution is existing technology and will not be elaborated on here. Two matching nuts 7 are slidably sleeved on the bidirectional lead screw 6. A clamping plate 8 for clamping the reinforcing bars is fixedly installed on the nuts 7. The sleeve 10 is vertically set at both ends of the frame 4.
[0026] The bidirectional lead screw 6 is vertically set. The clamping plate 13 and the clamping plate 8 are arc-shaped structures that cooperate with the reinforcing bars. The clamping plate 13 and the clamping plate 8 are provided with silicone pads 9 that move against the outer wall of the reinforcing bars. A limiting plate connected to the nut 7 is slidably sleeved on the bracket. The limiting plate is guided by the bracket, which can further limit the movement direction of the nut 7. By setting the clamping plate 13 and the clamping plate 8 as arc-shaped structures that cooperate with the reinforcing bars, the contact area between the clamping plate 13 and the reinforcing bars and the clamping plate 8 and the reinforcing bars can be increased. Furthermore, by installing silicone pads 9 in the clamping plate 13 and the clamping plate 8, the spiral coil can be protected when the reinforcing bars are clamped.
[0027] The processing box 1 is equipped with two straightening plates 17 for straightening the reinforcing bars via a rotating component, and the straightening plates 17 are provided with grooves 18 corresponding to the reinforcing bars.
[0028] The rotating component includes a second motor 14 fixedly mounted on the processing box 1, and a first rotating shaft 15 fixedly connected to the output end of the second motor 14. After the second motor 14 is powered on, it drives the first rotating shaft 15 to rotate on the processing box 1. This technical solution is existing technology and will not be elaborated on here. A second rotating shaft 16, which is connected to the first rotating shaft 15, is rotatably mounted on the processing box 1. A straightening plate 17 is provided on the first rotating shaft 15 and the second rotating shaft 16. The first rotating shaft 15 and the second rotating shaft 16 are horizontally arranged correspondingly. A gear 1 and a gear 2 that are meshed are fixedly mounted on the first rotating shaft 15 and the second rotating shaft 16, respectively. The straightening plate 17 is horizontally arranged on both sides of the reinforcing bar.
[0029] Gear 1 and Gear 2 are spur gears with the same number of teeth, enabling shaft 15 and shaft 26 to rotate in opposite directions at the same speed, thereby limiting the rotation direction of shaft 15 and shaft 26. As the two straightening plates 17 squeeze each other during rotation, the straightening plates 17 gradually tend to be horizontal. When the straightening plates 17 rotate, they can squeeze the steel bars, causing the steel bars to gradually fit into the straightening plates 17 and extend into the groove 18. The cooperation between the clamping plate 13 and the clamping plate 8 can maintain the stability of the steel bars during straightening.
[0030] The functional principle of this utility model can be explained through the following operation methods:
[0031] One end of the reinforcing bar extends into the processing box 1, so that the position to be corrected is located between the two correcting plates 17;
[0032] When the reinforcing bar extends into the two clamps 13, the spring 12 is stressed, causing the clamps 13 to drive the moving rod 11 to slide within the sleeve 10. The output end of the motor 5 drives the bidirectional lead screw 6 to rotate. When the bidirectional lead screw 6 rotates, it drives the two nuts 7 to move in opposite directions.
[0033] When the two nuts 7 move toward each other, they cause the clamping plates 8 to clamp the reinforcing bars from both sides.
[0034] The output end of motor 14 drives shaft 15 to rotate. When shaft 15 rotates, it drives shaft 2 16 to rotate through meshing gear 1 and gear 2. When shaft 15 and shaft 2 16 rotate in opposite directions, they drive the two straightening plates 17 to gradually approach each other, which can press and straighten the steel bars completely.
[0035] After the steel bar is straightened, the output end of the telescopic rod 3 extends and retracts, causing the processing box 1 to slide. During the movement, the steel bar slides in the groove 18, so that the groove 18 can straighten the steel bar.
[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A rebar straightening device for construction engineering, comprising a processing box (1), wherein the processing box (1) has a through hole, characterized in that, The processing box (1) is fixedly installed with symmetrically arranged support rods (2), and telescopic rods (3) are fixedly installed on the support rods (2). The output ends of the two telescopic rods (3) are integrally connected with a frame (4). The frame (4) is provided with a clamping structure for clamping the reinforcing bars. The processing box (1) is provided with two straightening plates (17) for straightening the reinforcing bars through a rotating part, and the straightening plates (17) are provided with grooves (18) corresponding to the reinforcing bars.
2. The rebar straightening device for building construction according to claim 1, characterized in that, The clamp structure includes a sleeve (10) and a bracket fixedly installed on the frame (4), and a movable rod (11) is slidably sleeved inside the sleeve (10). A spring (12) is welded between the movable rod (11) and the sleeve (10). A clamping plate (13) for clamping the reinforcing bar is fixedly installed on the movable rod (11). A motor (5) is fixedly installed on the bracket, and a two-way screw (6) is fixedly connected to the output end of the motor (5). Two matching nuts (7) are slidably sleeved on the two-way screw (6), and a clamping plate (8) for clamping the reinforcing bar is fixedly installed on the nuts (7).
3. A rebar straightening device for building construction according to claim 2, characterized in that, The frame (4) and the bracket are of the C-shape. The clamp (13) and the moving rod (11) extend to one side outside the sleeve (10). The spring (12) is vertically welded.
4. A rebar straightening device for building construction according to claim 2, characterized in that, The sleeve (10) is vertically set at both ends of the frame (4), the bidirectional screw (6) is vertically set, the clamp (13) and the card plate (8) are arc-shaped structures that cooperate with the reinforcing bars, and the clamp (13) and the card plate (8) are provided with silicone pads (9) that move against the outer wall of the reinforcing bars. The bracket is slidably fitted with a limiting plate connected to the nut (7).
5. A rebar straightening device for building construction according to claim 1, characterized in that, The rotating component includes a second motor (14) fixedly installed on the processing box (1), and a first rotating shaft (15) is fixedly connected to the output end of the second motor (14). A second rotating shaft (16) that is rotatably connected to the first rotating shaft (15) is rotatably installed on the processing box (1). The straightening plate (17) is provided on the first rotating shaft (15) and the second rotating shaft (16).
6. A rebar straightening device for building construction according to claim 5, characterized in that, The first rotating shaft (15) and the second rotating shaft (16) are horizontally arranged correspondingly, and gears one and two are fixedly installed on the first rotating shaft (15) and the second rotating shaft (16) respectively. The straightening plate (17) is horizontally arranged on both sides of the reinforcing bar.