A reinforcing bar straightening machine

Abstract

The utility model discloses a reinforcing bar straightening machine relates to reinforcing bar technology field for building construction, including the shell, the bottom of shell is rotated and is connected with the base through bearing, and the inner wall one side of shell is slidably installed with the abutment, and the one side of abutment is installed with the push board, and the outer wall fixed connection of abutment has the hydraulic oil cylinder, and the fixed component is installed between abutment and push board, and the fixed component is slidably sleeved in the outer wall of reinforcing bar, and the bottom of hydraulic oil cylinder is fixedly installed with the fixed base through bolt, and the fixed base is clamped with the shell through the positioning component, provides stable driving force through the hydraulic oil cylinder, does not need artificial laborious operation, and the labor intensity of worker is reduced greatly, and the tired problem caused by long -time operation is effectively avoided, and the reinforcing bar bending place can be positioned accurately with cooperation fixed component, and the degree of correction is accurately controlled with the aid of inductive block, prevents excessive correction, effectively guarantees reinforcing bar straightening effect, improves operating efficiency, and builds solid foundation for the quality and progress of subsequent construction.

Description

Technical Field

[0001] This utility model relates to the field of steel bar technology for building construction, specifically a steel bar straightening machine. Background Technology

[0002] A rebar straightening machine, also known as a rebar straightening machine, is a commonly used piece of equipment in construction. It mainly uses mechanical or hydraulic principles to straighten bent rebars, efficiently and quickly restoring them to a straight line, effectively improving the efficiency and quality of rebar construction and reducing the intensity of manual labor.

[0003] If the construction workers do not operate in a standardized manner during the installation of steel bars, and apply uneven force to the steel bars, such as applying too much or too little force to some parts, the steel bars will become unbalanced and unable to maintain their original straight shape, resulting in bending. This will cause many inconveniences to subsequent construction. For some completed buildings, it is still necessary to manually straighten the bent steel bars exposed on the exterior of the building. However, currently, the bent steel bars are mostly straightened manually using simple tools, which is time-consuming and labor-intensive, with low efficiency. Moreover, relying entirely on manual operation results in high labor intensity for workers, who are prone to fatigue after long hours of work. In addition, factors such as insufficient strength or inaccurate operation may lead to poor straightening of the steel bars, affecting the quality and progress of subsequent construction.

[0004] Therefore, this utility model provides a rebar straightening machine to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a rebar straightening machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A rebar straightening machine includes a housing, the bottom end of which is rotatably connected to a base via a bearing, and both housings have through slots at their axial centers. A backing plate is slidably installed on one side of the inner wall of the housing, a push plate is installed on one side of the backing plate, and a hydraulic cylinder is fixedly connected to the outer wall of the backing plate. A fixing component is installed between the abutment plate and the push plate, and the fixing component is slidably sleeved on the outer wall of the reinforcing bar. A fixing seat is fixedly installed on the bottom surface of the hydraulic cylinder, and the fixing seat is engaged with the outer shell through a positioning component.

[0007] As a further embodiment of this utility model, the fixing component includes a rotating frame located in the inner cavity of the outer shell. A drive disk is rotatably mounted on the upper end of the inner cavity of the rotating frame, and a fixed disk is fixedly mounted on the lower end of the inner cavity of the rotating frame. Multiple clamping blocks are slidably mounted between the drive disk and the fixed disk.

[0008] As a further embodiment of this utility model, the outer ball of the rotating frame is hinged with a movable ring, and the movable ring is located between the abutment plate and the push plate. The top surface of the drive disk is fixedly connected with an operating ring, and the operating ring protrudes from the upper surface of the rotating frame.

[0009] As a further embodiment of this utility model, the positioning component includes push blocks, and there are two sets of push blocks, both of which are slidably installed in the inner cavity of the fixed base. A pressing block is fixedly connected to the top surface of the push block, and a locking block is attached to the side of each set of push blocks that is far apart from each other.

[0010] As a further embodiment of this utility model, a dovetail block is fixedly connected to one side of the abutment plate, and a connecting rod is fixedly connected to the other side of the abutment plate, and the connecting rod is fixedly connected to the fixing seat.

[0011] As a further embodiment of this utility model, two high-pressure oil pipes are fixedly connected to the outer wall of the hydraulic cylinder, a handle is fixedly connected to the outer wall of the fixed base, and a control key is fixedly installed on the inner wall of the handle.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. When using the device of this utility model, a stable driving force is provided by a hydraulic cylinder, eliminating the need for manual labor and greatly reducing the labor intensity of workers. It effectively avoids fatigue caused by long-term operation. At the same time, the fixed component can accurately locate the bending point of the steel bar, and the sensing block can accurately control the degree of correction to prevent over-correction, effectively ensuring the straightening effect of the steel bar, improving the operating efficiency, and laying a solid foundation for the quality and progress of subsequent construction.

[0013] 2. When using the device of this utility model, the corrective force can be stably transmitted through the fixing component. The clamping block adapts to and fixes steel bars of different sizes. The ball joint design between the movable ring and the rotating frame ensures that the rotating frame can flexibly fit various bending angles of the steel bars and ensures that the movable ring is subjected to uniform force during the correction process, avoiding local stress damage. The positioning component is used to accurately adjust the height of the hydraulic cylinder and the push plate. The engagement of the locking block and the sawtooth groove achieves a stable lock position, which effectively improves the stability during operation and the adaptability of the overall device, ensuring the correction accuracy under different working conditions. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of a rebar straightening machine.

[0015] Figure 2 This is a structural cross-sectional view of a rebar straightening machine.

[0016] Figure 3 This is a schematic diagram of the structure of a fixing component in a rebar straightening machine.

[0017] Figure 4This is a structural cross-sectional view of a fixing component in a rebar straightening machine.

[0018] Figure 5 This is a structural cross-sectional view of a positioning component in a rebar straightening machine.

[0019] Figure 6 This is a structural breakdown diagram of the positioning component in a rebar straightening machine.

[0020] In the diagram: 1. Outer shell; 2. Base; 3. Support plate; 4. Push plate; 5. Hydraulic cylinder; 6. Fixed component; 601. Rotating frame; 602. Drive plate; 603. Fixed plate; 604. Clamping block; 605. Moving ring; 606. Operating ring; 7. Fixed base; 8. Positioning component; 801. Push block; 802. Pressing block; 803. Locking block; 804. Return spring; 805. T-shaped post; 9. Dovetail block; 10. Connecting rod; 11. High-pressure oil pipe; 12. Handle; 13. Control key. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 , Figure 2 In this embodiment of the utility model, a rebar straightening machine includes a housing 1. The bottom end of the housing 1 is rotatably connected to a base 2 via a bearing, and both the housing 1 and the base 2 are provided with through slots for the rebar to be straightened to pass through. A backing plate 3 is slidably installed on one side of the inner wall of the housing 1. A push plate 4 for pushing the bent part of the rebar is installed on one side of the backing plate 3. A hydraulic cylinder 5 for providing driving force is fixedly connected to the outer wall of the backing plate 3. A fixing component 6 is installed between the support plate 3 and the push plate 4 to position the bent part of the steel bar and transmit the corrective force. The fixing component 6 is slidably sleeved on the outer wall of the steel bar. A fixing seat 7 is fixedly installed on the bottom surface of the hydraulic cylinder 5 by bolts. The fixing seat 7 is engaged with the outer shell 1 by a positioning component 8. The positioning component 8 is used to adjust the operating height of the hydraulic cylinder 5 and the push plate 4. It should be noted that the outer shell 1 and the base 2 can rotate relative to each other around the bearing, providing a basis for subsequent adjustment of the alignment angle between the push plate 4 and the bend of the steel bar, and the base 2 can provide stable support for the outer shell 1. It should also be noted that there are multiple sets of fixing components 6, which can be increased or decreased according to the number of bends in the reinforcing bars. Fixing components 6 are fixedly fitted at the bends in the reinforcing bars. As the bending of the reinforcing bars causes the fixing components 6 to shift to the side away from the axis of the inner cavity of the outer shell 1, during operation, the outer shell 1 is rotated to make the push plate 4 approach the fixing components 6 and make the abutment plate 3 relatively away from the fixing components 6. Then, the hydraulic cylinder 5 drives the push plate 4 to drive the fixing components 6 to gradually approach and fit against the abutment plate 3, so as to promote the reinforcing bars to return to a straight shape. At the same time, the inner wall of the abutment plate 3 is equipped with a sensing block. When the sensing block detects that the fixing components 6 are in contact with the abutment plate 3, it can trigger the hydraulic cylinder 5 to stop the signal to avoid overcorrection. It is worth noting that the inner wall of the abutment plate 3 and the inner wall of the base 2 are on the same horizontal plane to ensure that the correction benchmark is consistent. It should also be noted that a set of fixing components 6 at the bottom of the outer wall of the steel bar is fitted onto the bottom of the steel bar and rotatably connected to the inner cavity of the base 2, so as to ensure that the outer shell 1 and the bottom of the steel bar always remain coaxial, laying the foundation for the precise correction of each bend in the future.

[0023] Please see Figure 2 , Figure 3 , Figure 4 The fixing component 6 includes a rotating frame 601, which is located in the inner cavity of the outer shell 1 and sleeved on the outer surface of the reinforcing bar. A drive disk 602 is rotatably installed at the upper end of the inner cavity of the rotating frame 601, and a fixing disk 603 is fixedly installed at the lower end of the inner cavity of the rotating frame 601. A plurality of clamping blocks 604 for clamping and fixing the reinforcing bar are slidably installed between the drive disk 602 and the fixing disk 603. It should be noted that the center of both the drive disk 602 and the fixed disk 603 is provided with through holes to facilitate the insertion of reinforcing bars. The upper and lower ends of the clamping block 604 are rotatably connected to the inside of the drive disk 602 and the fixed disk 603 through the transmission shaft, and the inside of the drive disk 602 and the fixed disk 603 is provided with corresponding transmission grooves. The transmission shaft is located in the transmission groove and is used to transmit rotational power. The rotating frame 601 has an external ball hinge with a movable ring 605, and the movable ring 605 is located between the abutment plate 3 and the push plate 4. The top surface of the drive disk 602 is fixedly connected with an operating ring 606, and the operating ring 606 protrudes from the upper surface of the rotating frame 601. It should be noted that a gap is reserved between the rotating frame 601 and the movable ring 605 to provide space for the rotating frame 601 to rotate at multiple angles. When the fixing component 6 is installed on the outer wall of the steel bar, the rotating frame 601 can tilt synchronously with the bending angle of the steel bar. The movable ring 605 and the rotating frame 601 adopt a ball joint design and will not tilt with the rotating frame 601. The ball joint design allows the rotating frame 601 to adapt to the bending angle of the steel bar and achieve flexible tilting. It also ensures that the movable ring 605 is evenly stressed when the push plate 4 pushes the movable ring 605 to fit against the abutment plate 3, thereby improving the adaptability and stability of the fixing component 6. It should also be noted that by rotating the operating ring 606, the drive disk 602 can be driven to move in tandem, thereby driving the clamping block 604 to open and close, thereby adjusting the size of the opening and closing hole, allowing the clamping block 604 to adapt to and fix steel bars of different sizes, and improving the versatility of the fixing component 6.

[0024] Please see Figure 2 , Figure 5 , Figure 6 The positioning component 8 includes a push block 801. There are two sets of push blocks 801, both of which are slidably installed in the inner cavity of the fixed seat 7. A pressing block 802 is fixedly connected to the top surface of the push block 801. A locking block 803 for limiting the position of the fixed seat 7 is attached to the side of the two sets of push blocks 801 that are far apart. The locking block 803 is slidably installed in the inner cavity of the fixed seat 7. It should be noted that the inner wall of the outer shell 1 is provided with a serrated groove that matches the locking block 803, and the locking block 803 engages with the serrated groove. The side of the push block 801 that is in contact with the locking block 803 is provided with an inclined surface. By pressing down the pressing block 802, the push block 801 is moved down, pushing the locking block 803 to engage with the serrated groove, thereby restricting the fixed seat 7 from sliding freely. It should also be noted that each set of locking blocks 803 has a fixed connection to a return spring 804 for pulling the locking block 803 back to its original position. To prevent the locking block 803 from moving freely after engaging with the serrated groove, a T-shaped post 805 is rotatably mounted on the top surface of the fixing base 7 via a bearing. A limit groove is opened in the inner cavity of the pressing block 802, and the T-shaped post 805 is located in the limit groove. Rotating the T-shaped post 805 so that it is no longer parallel to the limit groove will lock the pressing block 802, prevent it from moving accidentally, ensure the stability of the locking block 803 engaging with the serrated groove, and improve the reliability of the overall structure.

[0025] Please see Figure 2 A dovetail block 9 for limiting its smooth movement is fixedly connected to one side of the abutment plate 3, and a connecting rod 10 is fixedly connected to the other side of the abutment plate 3, and the connecting rod 10 is fixedly connected to the fixed seat 7. It should be noted that the inner wall of the outer casing 1 is provided with a dovetail groove for the dovetail block 9 to slide. The dovetail block 9 is located in the dovetail groove and is perpendicular to the sliding direction without gap. At the same time, both the dovetail block 9 and the dovetail groove are trapezoidal. The trapezoidal structure, with the help of the inclined surface, can effectively prevent the dovetail block 9 from slipping. The connecting rod 10 can ensure that the abutment plate 3 and the push plate 4 always maintain a relative positional relationship, so that the two can cooperate stably during operation and ensure the accuracy and reliability of the device operation.

[0026] Please see Figure 2 , Figure 5 Two high-pressure oil pipes 11 are fixedly connected to the outer wall of the hydraulic cylinder 5, and a handle 12 is fixedly connected to the outer wall of the fixed base 7. A control key 13 for controlling the operation of the hydraulic cylinder 5 is fixedly installed on the inner wall of the handle 12. It should be noted that the high-pressure oil pipe 11 is used to transmit hydraulic oil, providing a power medium for the operation of the hydraulic cylinder 5. The hydraulic cylinder 5 is connected to the oil pump through the high-pressure oil pipe 11. The control key 13 can control the operation of the hydraulic cylinder 5, making it convenient for the operator to hold the handle 12 and operate the hydraulic cylinder 5 through the control key 13, thus improving the convenience and flexibility of operation.

[0027] The working principle of this utility model is as follows: When using this utility model, first select the corresponding number of fixing components 6 according to the number of bending points of the steel bars and put them on the outer wall of the bending points of the steel bars. Then rotate the operating ring 606 to drive the drive disk 602 to rotate. Through the transmission shaft, the clamping block 604 opens and closes along the transmission groove until the steel bars are clamped. At the same time, because the steel bars are bent, the fixing components 6 will follow the bending shape of the steel bars and shift away from the axis of the inner cavity of the outer shell 1. Then, the steel bar and fixing component 6 are inserted through the slot at the axis of the outer shell 1 and the base 2. The base 2 provides stable support, and the bottom fixing component 6 needs to be inserted into the base 2 to ensure that the outer shell 1 and the bottom of the steel bar always remain coaxial. Before installation, the positioning component 8 is used to drive the fixing seat 7 to adjust the abutment plate 3 and push plate 4 to the top of the inner cavity of the outer shell 1. At the same time, the outer shell 1 is rotated so that the offset direction of the push plate 4 and the top fixing component 6 are on the same side. Then the operator holds the handle 12 and presses the control key 13 to start the hydraulic cylinder 5. At this time, the high-pressure oil pipe 11 is connected to the oil pump to transmit hydraulic oil, so that the hydraulic cylinder 5 drives the push plate 4 to push the fixing component 6. Under the action of the thrust, the fixing component 6 will drive the bent part of the steel bar to gradually move towards the abutment plate 3, so that the steel bar gradually returns to a straight shape. When the sensing block in the abutment plate 3 detects that the fixing component 6 is in complete contact with the abutment plate 3, it will immediately trigger the hydraulic cylinder 5 to stop operating to avoid over-correction. To correct the next bend in the rebar, first rotate the outer casing 1 so that the push plate 4 is on the same side as the offset direction of the next set of fixing components 6. Then, adjust the operating height of the hydraulic cylinder 5 and the push plate 4 according to the height of the bend in the rebar. By rotating the T-shaped column 805, the pressing block 802 is unlocked. Then, the return spring 804 pulls the locking block 803 away from the serrated groove, which can push the fixing seat 7 to slide along the inner wall of the outer casing 1, thereby driving the hydraulic cylinder 5 and the push plate 4 to adjust the height. At the same time, the fixing seat 7 will drive the abutment plate 3 to adjust the height synchronously through the connecting rod 10. After the height is adjusted, press down the pressing block 802 so that the push block 801 pushes the locking block 803 to re-engage with the serrated groove. Then rotate the T-shaped column 805 to lock the pressing block 802. After that, the hydraulic cylinder 5 can be started again to perform the correction operation.

[0028] 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 machine, comprising a casing (1), characterized in that, The bottom end of the outer shell (1) is rotatably connected to the base (2) via a bearing, and both of them have through slots at their axial centers. A backing plate (3) is slidably installed on one side of the inner wall of the outer shell (1), and a push plate (4) is installed on one side of the backing plate (3). A hydraulic cylinder (5) is fixedly connected to the outer wall of the backing plate (3). A fixing component (6) is installed between the abutment plate (3) and the push plate (4), and the fixing component (6) is slidably sleeved on the outer wall of the reinforcing bar. A fixing seat (7) is fixedly installed on the bottom surface of the hydraulic cylinder (5), and the fixing seat (7) is engaged with the outer shell (1) by a positioning component (8).

2. The rebar straightening machine according to claim 1, characterized in that, The fixing component (6) includes a rotating frame (601), which is located in the inner cavity of the outer shell (1). A drive disk (602) is rotatably mounted on the upper end of the inner cavity of the rotating frame (601), and a fixed disk (603) is fixedly mounted on the lower end of the inner cavity of the rotating frame (601). A plurality of clamping blocks (604) are slidably mounted between the drive disk (602) and the fixed disk (603).

3. A rebar straightening machine according to claim 2, characterized in that, The rotating frame (601) has an external ball hinge with a movable ring (605), and the movable ring (605) is located between the abutment plate (3) and the push plate (4). The top surface of the drive disk (602) is fixedly connected with an operating ring (606), and the operating ring (606) protrudes from the upper surface of the rotating frame (601).

4. A rebar straightening machine according to claim 1, characterized in that, The positioning component (8) includes a push block (801), which has two sets and is slidably installed in the inner cavity of the fixed seat (7). The top surface of the push block (801) is fixedly connected to a pressing block (802), and the two sets of push blocks (801) are attached to a locking block (803) on the side away from each other.

5. A rebar straightening machine according to claim 1, characterized in that, A dovetail block (9) is fixedly connected to one side of the abutment (3), and a connecting rod (10) is fixedly connected to the other side of the abutment (3), and the connecting rod (10) is fixedly connected to the fixing seat (7).

6. A rebar straightening machine according to claim 1, characterized in that, Two high-pressure oil pipes (11) are fixedly connected to the outer wall of the hydraulic cylinder (5), and a handle (12) is fixedly connected to the outer wall of the fixed seat (7), and a control key (13) is fixedly installed on the inner wall of the handle (12).

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