Rapid clamping and threading device for reinforcing steel bars
By using an automatic adjusting sleeve position driven by a servo motor and a linear motor, and a clamping block driven by a hydraulic cylinder, the problems of low efficiency and inaccurate alignment in traditional rebar threading devices are solved, achieving highly efficient automation of rebar processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-20
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional rebar threading devices require manual adjustment of the sleeve position and height, resulting in low efficiency, inaccurate alignment, high labor intensity for operators, and the need to stop the machine to unload and re-clamp when changing rebars, which affects processing efficiency.
The system employs a servo motor-driven threading sleeve, linear motor, electric push rod, and other components to automatically adjust the sleeve height and position. Combined with a hydraulic cylinder-driven clamping block and rectangular roller, it enables rapid fixing and replacement of reinforcing bars. The integrated clamping mechanism ensures that the reinforcing bars do not shift during processing.
It achieves precise alignment and automatic adjustment of the threaded sleeve, improving the accuracy and efficiency of rebar processing, reducing the labor intensity of operators, and shortening processing downtime.
Smart Images

Figure CN224058869U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a reinforcing steel bar processing technical field especially relates to a reinforcing steel bar fast clamping silk device. BACKGROUND
[0002] In the processing of reinforcing steel bar connecting sleeve thread, the reinforcing steel bar needing to be sleeved is manually dragged to the processing table, and the length of the reinforcing steel bar needing to be threaded is determined according to the parameters set in advance by the operating personnel, and the purpose is achieved by moving the length of the reinforcing steel bar in the sleeve threading machine. However, since the length of the reinforcing steel bar needing to be sleeved is usually 9m or 12m, and the diameter is large, especially for large-diameter reinforcing steel bars with a diameter of 28mm or 32mm, the self-weight is large, and it is difficult for manual movement. When the operating personnel drag the reinforcing steel bar to the processing table, it is difficult to accurately control the position of the reinforcing steel bar end, and the length of the reinforcing steel bar sleeve thread and the number of effective threads of the thread end are difficult to accurately control, resulting in poor reinforcing steel bar thread end processing effect, large deviation of effective thread number, and unqualified reinforcing steel bar thread end processing, which affects the construction quality of building engineering, and even the thread end needs to be cut off and reworked, causing the loss of construction cost.
[0003] Publication (announcement) No. CN217393970U discloses a sleeve threading machine reinforcing steel bar clamping adjusting device, which comprises a base and a clamping mechanism for clamping reinforcing steel bars. The adjusting seat is slidably arranged on the base, and a sliding adjusting mechanism is arranged on the base to adjust the sliding position of the adjusting seat. The clamping mechanism is arranged on the adjusting seat, and the moving direction M of the adjusting seat is perpendicular to the clamping direction N of the clamping mechanism. The sleeve threading machine reinforcing steel bar clamping adjusting device has the advantages of simple structure, convenient operation, and improved reinforcing steel bar thread end processing precision and quality.
[0004] In the traditional sleeve threading device, the position and height of the threading tool (such as sleeve) need to be manually adjusted, resulting in low efficiency, inaccurate alignment (easy to cause thread processing deviation), and high labor intensity of the operator. The traditional reinforcing steel bar fixing device is usually single-groove or static design, and needs to be stopped, manually unloaded and re-clamped when replacing the reinforcing steel bar, resulting in long processing interruption time and low efficiency. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving the problems of traditional sleeve threading device, such as the need for manual adjustment of the position and height of the threading tool (such as sleeve), resulting in low efficiency, inaccurate alignment (easy to cause thread processing deviation), and high labor intensity of the operator, and the traditional reinforcing steel bar fixing device is usually single-groove or static design, and needs to be stopped, manually unloaded and re-clamped when replacing the reinforcing steel bar, resulting in long processing interruption time and low efficiency, and proposes a reinforcing steel bar fast clamping silk device.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0007] The reinforcing steel bar fast clamping silk device comprises:
[0008] The bottom of the work plate is fixedly provided with four supporting legs;
[0009] The upper wire mechanism is slidably installed on the top of the work plate;
[0010] The steel bar fixing mechanism is installed on the top of the work plate and matched with the upper wire mechanism;
[0011] The bevel plate is fixedly provided with a limiting strip on the side, and is installed on the top of the work plate and matched with the steel bar fixing mechanism.
[0012] Preferably, the upper wire mechanism comprises a moving plate slidably installed on the top of the work plate, a telescopic slot is formed in the top of the moving plate, a telescopic plate is slidably installed in the telescopic slot, a rotating shaft is rotatably installed on the telescopic plate through a bearing, a connecting head is installed on the rotating shaft through a bolt, an upper wire sleeve is installed on the connecting head, a servo motor is installed on the outer side of the telescopic plate, and the output shaft of the servo motor is fixedly installed on the rotating shaft.
[0013] Preferably, an electric push rod is fixedly installed on the top of the work plate, and the output shaft of the electric push rod is fixedly installed on the moving plate.
[0014] Preferably, two linear motors are fixedly installed on the outer side of the moving plate, and a lifting block is fixedly installed on the output shaft of each linear motor, and the two lifting blocks are fixedly installed on the telescopic plate.
[0015] Preferably, the steel bar fixing mechanism comprises two fixed plates, and a same rectangular roller is rotatably installed between the two fixed plates, steel bar placing grooves are formed in the four surfaces of the rectangular roller, a stepping motor is fixedly installed on the outer side of one fixed plate, and the output shaft of the stepping motor is fixedly installed on the rectangular roller.
[0016] Preferably, the steel bar fixing mechanism further comprises two brackets, a same top plate is fixedly installed on the top of the two brackets, two hydraulic cylinders are installed on the top plate, a pressing block is installed on the output shaft of each hydraulic cylinder, and the bottom of the pressing block is arc-shaped and aligned with the upper steel bar placing groove.
[0017] Preferably, two sliding holes are formed in the top of the work plate, a limiting rod is fixedly installed in each sliding hole, two sliding blocks are fixedly installed on the bottom of the moving plate, and the two sliding blocks are slidably connected with the inner walls of the two sliding holes through the two limiting rods.
[0018] Compared with the prior art, the utility model has the advantages that:
[0019] 1. Height and Position Adjustable Threading Mechanism (Achieved via Linear Motor, Electric Push Rod, and Lifting Block): The threading mechanism employs components such as a moving plate, a telescopic plate, a servo motor, and a threading sleeve, combined with an electric push rod (for horizontal movement) and a linear motor (for vertical lifting), to achieve precise and automatic adjustment of the threading sleeve's height and position. Specifically: The linear motor controls the height of the telescopic plate via the lifting block, ensuring the threading sleeve is aligned with the center of the rebar. The electric push rod pushes the moving plate horizontally, moving the threading sleeve closer to or away from the rebar. The servo motor directly drives the rotating shaft and the threading sleeve to rotate, performing the threading operation.
[0020] 2. The rebar fixing mechanism uses a rectangular roller with rebar placement slots on all four sides. A stepper motor drives the rectangular roller to rotate 90 degrees, enabling rapid rebar replacement. The clamping block (driven by a hydraulic cylinder) has an arc-shaped bottom design, aligning with the rebar placement slots to ensure secure rebar fixing. After rotation, the threaded rebar will automatically slide off.
[0021] Integrated clamping mechanism (hydraulic cylinder drives the clamping block to align with the placement groove)
[0022] 3. The clamping mechanism uses a hydraulic cylinder to drive the clamping block. The bottom of the clamping block is designed with an arc shape, which is precisely aligned with the bar placement groove on the rectangular roller to provide uniform clamping force and prevent the bar from shifting during processing.
[0023] This invention solves the problems of manual operation, low efficiency, and unstable quality in traditional rebar threading devices. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of the rebar quick clamping and wire feeding device proposed in this utility model;
[0025] Figure 2 This is a right view of the rebar quick clamping and threading device proposed in this utility model;
[0026] Figure 3 This is a left view of the rebar quick clamping and threading device proposed in this utility model;
[0027] Figure 4 This is a bottom view of the rebar quick clamping and wire feeding device proposed in this utility model.
[0028] In the diagram: 1. Working plate; 2. Fixed plate; 3. Rectangular roller; 4. Rebar placement groove; 5. Support; 6. Top plate; 7. Hydraulic cylinder; 8. Clamping block; 9. Stepper motor; 10. Sliding hole; 11. Slider; 12. Moving plate; 13. Telescopic plate; 14. Lifting block; 15. Linear motor; 16. Electric push rod; 17. Rotary shaft; 18. Servo motor; 19. Threading sleeve; 20. Beveled plate; 21. Limiting strip; 22. Connector. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0030] Embodiment one
[0031] With reference to Figures 1-4 The steel bar fast clamping and threading device comprises a working plate 1, a threading mechanism, a steel bar fixing mechanism and an inclined edge plate 20, four supporting legs are fixedly installed at the bottom of the working plate 1, the threading mechanism is slidingly installed at the top of the working plate 1, the steel bar fixing mechanism is installed at the top of the working plate 1 and is matched with the threading mechanism, a limiting strip 21 is fixedly installed at the side of the inclined edge plate 20, and the inclined edge plate 20 is installed at the top of the working plate 1 and is matched with the steel bar fixing mechanism.
[0032] In the embodiment, the threading mechanism comprises a moving plate 12, the moving plate 12 is slidingly installed at the top of the working plate 1, an extension slot is formed in the top of the moving plate 12, an extension plate 13 is slidingly installed in the extension slot, a rotating shaft 17 is rotatably installed on the extension plate 13 through a bearing, a connecting head 22 is installed on the rotating shaft 17 through bolts, a threading sleeve 19 is installed on the connecting head 22, a servo motor 18 is installed on the outer side of the extension plate 13, and the output shaft of the servo motor 18 is fixedly installed on the rotating shaft 17.
[0033] In the embodiment, an electric push rod 16 is fixedly installed at the top of the working plate 1, the output shaft of the electric push rod 16 is fixedly installed on the moving plate 12, two linear motors 15 are fixedly installed on the outer side of the moving plate 12, lifting blocks 14 are fixedly installed on the output shafts of the two linear motors 15, and the two lifting blocks 14 are fixedly installed on the extension plate 13.
[0034] In the embodiment, the steel bar fixing mechanism comprises two fixed plates 2 and two supports 5, one and the same rectangular roller 3 is rotatably installed between the two fixed plates 2, steel bar placing grooves 4 are formed in the four faces of the rectangular roller 3, a stepping motor 9 is fixedly installed on the outer side of one fixed plate 2, the output shaft of the stepping motor 9 is fixedly installed on the rectangular roller 3, one and the same top plate 6 is fixedly installed at the top of the two supports 5, two hydraulic cylinders 7 are installed at the top of the top plate 6, pressing blocks 8 are installed on the output shafts of the two hydraulic cylinders 7, and the bottom of each pressing block 8 is arc-shaped and is aligned with the upper steel bar placing groove 4.
[0035] In the embodiment, two sliding holes 10 are formed in the top of the working plate 1, limiting rods are fixedly installed in the two sliding holes 10, two sliding blocks 11 are fixedly installed at the bottom of the moving plate 12, and the two sliding blocks 11 are slidingly connected with the inner walls of the two sliding holes 10 through the two limiting rods.
[0036] Working mode: in use, turn on the power supply and controller, place the steel bar in the upper steel bar placing groove 4, the two hydraulic cylinders 7 drive the two pressing blocks 8 to move downward, the two pressing blocks 8 press and fix the steel bar, the end of the steel bar is close to the position of the upper wire sleeve 19, the two linear motors 15 drive the telescopic plate 13 to adjust the height through the two lifting blocks 14, the telescopic plate 13 drives the upper wire sleeve 19 to adjust the height, so that the upper wire sleeve 19 is aligned with the center of the steel bar, the servo motor 18 drives the upper wire sleeve 19 to rotate through the rotating shaft 17, the electric push rod 16 drives the moving plate 12 to move, the moving plate 12 drives the upper wire sleeve 19 to approach the steel bar through the telescopic plate 13, the upper wire sleeve 19 threads the steel bar, the thread pushing can be carried out, after the threading is completed, the upper wire sleeve 19 is controlled in reverse to move away from the steel bar, the stepping motor 9 drives the rectangular roller 3 to rotate 90 degrees, so that the steel bar after threading falls to the position of the limiting strip 21 through the bevel plate 20, and then the steel bar is placed and fixed again for processing.
[0037] Embodiment two
[0038] In this embodiment, the difference between embodiment two and embodiment one is that the front side of the telescopic plate 13 is provided with a sensor, the position of the upper wire sleeve 19 and the steel bar is positioned through the sensor, all the structures in the application can be selected in material and length according to the actual use, and the drawings are all schematic structural diagrams, and the specific actual size can be properly adjusted.
[0039] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.
Claims
1. A device for rapid clamping of reinforcing bars for threading, characterized in that, Include: Workboard (1), the bottom of the workboard (1) is fixedly installed with four supporting legs; Upper wire mechanism, slidingly installed on the top of the workboard (1); Rebar fixing mechanism, installed on the top of the workboard (1) and matched with the upper wire mechanism; Bevel plate (20), installed on the top of the workboard (1) and matched with the rebar fixing mechanism.
2. The rapid bar gripping threader device of claim 1, wherein, The upper wire mechanism includes a moving plate (12) slidingly installed on the top of the workboard (1), a telescopic slot is formed in the top of the moving plate (12), a telescopic plate (13) is slidingly installed in the telescopic slot, a rotating shaft (17) is rotatably installed on the telescopic plate (13) through a bearing, a connecting head (22) is installed on the rotating shaft (17) through a bolt, an upper wire sleeve (19) is installed on the connecting head (22), a servo motor (18) is installed on the outer side of the telescopic plate (13), and the output shaft of the servo motor (18) is fixedly installed with the rotating shaft (17).
3. The rapid bar gripping threader device of claim 2, wherein, The top of the workboard (1) is fixedly installed with an electric push rod (16), and the output shaft of the electric push rod (16) is fixedly installed with the moving plate (12).
4. The rapid bar gripping threader device of claim 2, wherein, The outer side of the moving plate (12) is fixedly installed with two linear motors (15), and the output shaft of each linear motor (15) is fixedly installed with a lifting block (14), and the two lifting blocks (14) are fixedly installed with the telescopic plate (13).
5. The rapid bar gripping threader device of claim 1, wherein, The rebar fixing mechanism includes two fixed plates (2), and a same rectangular roller (3) is rotatably installed between the two fixed plates (2), four rebar placing grooves (4) are formed in the four faces of the rectangular roller (3), a stepping motor (9) is fixedly installed on the outer side of one fixed plate (2), and the output shaft of the stepping motor (9) is fixedly installed with the rectangular roller (3).
6. The rapid bar gripping threader of claim 5, wherein, The rebar fixing mechanism further includes two brackets (5), and a same top plate (6) is fixedly installed on the top of the two brackets (5), two hydraulic cylinders (7) are installed on the top of the top plate (6), a pressing block (8) is installed on the output shaft of each hydraulic cylinder (7), and the bottom of the pressing block (8) is arc-shaped and aligned with the upper rebar placing groove (4).
7. The rapid bar gripping threader device of claim 1, wherein, Two slide holes (10) are formed in the top of the workboard (1), a limiting rod is fixedly installed in each slide hole (10), two sliding blocks (11) are fixedly installed on the bottom of the moving plate (12), and the two sliding blocks (11) are slidingly connected with the inner walls of the two slide holes (10) through the two limiting rods.
8. The rapid bar gripping threader device of claim 1, wherein, The edge side of the bevel plate (20) is fixedly installed with a limiting strip (21).
Citation Information
Patent Citations
Reinforcing steel bar clamping and adjusting device of threading machine
CN217393970U