Waste steel bar straightening device

Abstract

The utility model discloses a waste reinforcing steel bar straightening device, which belongs to the technical field of waste reinforcing steel bars, and comprises a bottom plate, the top of the bottom plate is fixedly connected with a driving box, the inside of the driving box is movably connected with a positive and negative thread rod, and both sides of the surface of the positive and negative thread rod are in threaded connection with movable blocks; the two ends of a bent U-shaped reinforcing steel bar are placed between the two clamping frames on the two sides, then an operator starts the first electric cylinder to contract so as to drive the sliding blocks on the two sides to be far away from each other, the sliding blocks drive the clamping frames to move towards the side far away from the heating assembly, and when limiting blocks on the surfaces of the clamping frames make contact with arc-shaped protruding blocks, the U-shaped reinforcing steel bar can be heated. When the steel bar is bent, the arc-shaped protruding blocks push the clamping frames to rotate, then the clamping frames on the front side and the rear side get close to each other, the two ends of the steel bar are clamped, then an operator starts a first motor to rotate to drive movable blocks and movable tables on the two sides to get away from each other, the bent steel bar is straightened, and the device has the advantages of being convenient to use and high in straightening efficiency.

Description

A device for straightening waste steel bars Technical Field

[0001] This utility model relates to the field of waste steel bar technology, specifically a waste steel bar straightening device. Background Technology

[0002] Building construction requires a large amount of steel bars. These bars need to be bent, cut, and processed during use. Excess bent steel bars are a waste of resources. To reduce this waste, bent steel bars are usually straightened for reuse. This straightening process requires the use of steel bar straightening devices.

[0003] For bent scrap steel bars, manual tools are often used to straighten them. This process requires a lot of manpower and time, resulting in low straightening efficiency. Therefore, it is necessary to design and modify the scrap steel bar straightening device to effectively prevent the phenomenon of low straightening efficiency. Summary of the Invention

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a waste steel bar straightening device, which has the advantages of being easy to use and having high straightening efficiency. It solves the problem that bending waste steel bars are often straightened manually using tools, which requires a lot of manpower and time, resulting in low straightening efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste rebar straightening device, comprising a base plate, a drive box fixedly connected to the top of the base plate, a threaded rod movably connected inside the drive box, movable blocks threadedly connected to both sides of the surface of the threaded rod, the movable blocks being movably connected to the drive box, a first motor fixedly connected to the right side of the drive box, the output end of the first motor being fixedly connected to the threaded rod, a movable platform fixedly connected to the top of the movable blocks, a sliding groove provided at the bottom of the inner wall of the movable platform, a slider movably connected inside the sliding groove, clamping frames movably connected to the front and rear sides of the top of the slider, arc-shaped protrusions provided on the front and back of the inner wall of the movable platform, limit blocks provided on the surface of the clamping frames, and a first electric cylinder fixedly connected to the bottom of the inner wall of the movable platform, the output end of the first electric cylinder being fixedly connected to the slider.

[0006] In a preferred embodiment of this utility model, the front and rear sides of the top of the base plate are provided with movable grooves, and a support block is movably connected inside the movable groove. A second electric cylinder is fixedly connected to the top of the support block, and a support plate is fixedly connected to the output end of the second electric cylinder. Limiting rods are movably connected to the front and rear sides inside the support plate, and a heating component is fixedly connected to the top of the limiting rods. Compression springs are fixedly connected to the front and rear sides of the top of the support plate, and the compression springs are fixedly connected to the heating component.

[0007] In a preferred embodiment of this invention, a working box is fixedly connected to the front of the drive box, a first threaded rod is movably connected inside the working box, a drive block is threadedly connected to the surface of the first threaded rod, the drive block is fixedly connected to a second electric cylinder, the drive block is movably connected to the working box, a second motor is fixedly connected to the right side of the working box, and the output end of the second motor is fixedly connected to the first threaded rod.

[0008] As a preferred embodiment of this utility model, bearings are fixedly connected inside both the drive box and the working box, and the bearings are fixedly connected to the positive and negative threaded rods and the first threaded rod, respectively. Lubricating oil is provided inside the bearings, and a sealing shaft cover is provided inside the bearings.

[0009] As a preferred embodiment of this invention, the surface of the clamping frame is provided with anti-slip teeth, and the number of anti-slip teeth is several.

[0010] As a preferred embodiment of this utility model, a spring is fixedly connected to the surface of the clamping frame, and the surfaces of the spring and the compression spring are both coated with anti-rust paint.

[0011] As a preferred embodiment of this utility model, a controller is fixedly connected to the top of the base plate via a bracket, and the controller is respectively connected to the first motor, the second motor, the first electric cylinder, and the second electric cylinder.

[0012] As a preferred embodiment of this utility model, mounting blocks are fixedly connected to both the front and back sides of the base plate, and the surface of each mounting block is provided with two mounting openings.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model involves placing the two ends of a bent U-shaped steel bar between two clamping frames on both sides. The operator then activates the first electric cylinder to retract, which in turn moves the sliders on both sides away from each other. The sliders move the clamping frames away from the heating element. When the limiting block on the surface of the clamping frame contacts the arc-shaped protrusion, the arc-shaped protrusion pushes the clamping frame to rotate, causing the clamping frames on both sides to move closer together and clamp the two ends of the steel bar. Then, the operator activates the first motor to rotate, which moves the movable blocks and movable platforms on both sides away from each other, thereby straightening the bent steel bar. This device has the advantages of being easy to use and having high straightening efficiency.

[0015] 2. This utility model, through the setting of movable groove, support block, second electric cylinder, support plate, limit rod, heating component and compression spring, allows the operator to activate the extension of the second electric cylinder, thereby driving the support plate, limit rod and heating component to move upward, so that the heating component is in contact with the bending part of the steel bar. Then the operator activates the heating component to heat the bending part of the steel bar, so that the bending part of the steel bar is quickly heated and softened, thus making it easier to bend the steel bar. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the structure of this utility model;

[0017] Figure 2 is a top view of the clamping frame structure of this utility model;

[0018] Figure 3 is an enlarged schematic diagram of the structure at point A in Figure 1 of this utility model;

[0019] Figure 4 is an enlarged schematic diagram of the structure at point B in Figure 1 of this utility model.

[0020] In the diagram: 1. Base plate; 2. Drive box; 3. Movable block; 4. First motor; 5. Movable platform; 6. Slider; 7. Clamping frame; 8. Arc-shaped protrusion; 9. Limiting block; 10. First electric cylinder; 11. Support block; 12. Second electric cylinder; 13. Support plate; 14. Limiting rod; 15. Heating assembly; 16. Compression spring; 17. Working box; 18. First threaded rod; 19. Drive block; 20. Second motor; 21. Controller; 22. Mounting block; 23. Mounting port; 24. Anti-slip teeth; 25. Spring. 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] As shown in Figures 1 to 4, a waste rebar straightening device includes a base plate 1. A drive box 2 is fixedly connected to the top of the base plate 1. A threaded rod with positive and negative threads is movably connected inside the drive box 2. Movable blocks 3 are threadedly connected to both sides of the surface of the threaded rod. The movable blocks 3 are movably connected to the drive box 2. A first motor 4 is fixedly connected to the right side of the drive box 2. The output end of the first motor 4 is fixedly connected to the threaded rod with positive and negative threads. A movable platform 5 is fixedly connected to the top of the movable blocks 3. A sliding groove is provided at the bottom of the inner wall of the movable platform 5. A slider 6 is movably connected inside the sliding groove. A clamping frame 7 is movably connected to the front and rear sides of the top of the slider 6. Arc-shaped protrusions 8 are provided on the front and back sides of the inner wall of the movable platform 5. A limit block 9 is provided on the surface of the clamping frame 7. A first electric cylinder 10 is fixedly connected to the bottom of the inner wall of the movable platform 5. The output end of the first electric cylinder 10 is fixedly connected to the slider 6.

[0023] Referring to Figures 1, 3, and 4, movable grooves are provided on the front and rear sides of the top of the base plate 1, and a support block 11 is movably connected inside the movable groove. A second electric cylinder 12 is fixedly connected to the top of the support block 11, and a support plate 13 is fixedly connected to the output end of the second electric cylinder 12. Limiting rods 14 are movably connected to the front and rear sides inside the support plate 13, and a heating component 15 is fixedly connected to the top of the limiting rods 14. Compression springs 16 are fixedly connected to the front and rear sides of the top of the support plate 13, and the compression springs 16 are fixedly connected to the heating component 15.

[0024] As a technical optimization of this utility model, by setting up the movable groove, support block 11, second electric cylinder 12, support plate 13, limit rod 14, heating component 15 and compression spring 16, the operator can start the second electric cylinder 12 to extend, thereby driving the support plate 13, limit rod 14 and heating component 15 to move upward, so that the heating component 15 fits with the bending part of the steel bar. Then the operator starts the heating component 15 to heat the bending part of the steel bar, thereby facilitating the bending of the steel bar.

[0025] Referring to Figures 1 and 4, a working box 17 is fixedly connected to the front of the drive box 2. A first threaded rod 18 is movably connected inside the working box 17. A drive block 19 is threadedly connected to the surface of the first threaded rod 18. The drive block 19 is fixedly connected to the second electric cylinder 12 and movably connected to the working box 17. A second motor 20 is fixedly connected to the right side of the working box 17. The output end of the second motor 20 is fixedly connected to the first threaded rod 18.

[0026] As a technical optimization of this utility model, by setting up the work box 17, the first threaded rod 18, the second motor 20 and the drive block 19, the operator can start the second motor 20 to rotate and drive the first threaded rod 18 to rotate, thereby driving the drive block 19 to move left and right, thereby driving the second electric cylinder 12, the support plate 13, the limit rod 14 and the heating component 15 to move left and right, thereby adjusting the contact between the heating component 15 and the bent part of the steel bar.

[0027] Referring to Figures 1 and 4, bearings are fixedly connected inside the drive box 2 and the working box 17, and the bearings are fixedly connected to the positive and negative threaded rods and the first threaded rod 18, respectively. The bearings are provided with lubricating oil and sealed shaft covers.

[0028] As a technical optimization of this utility model, by setting the bearing, the friction between the positive and negative threaded rods and the drive box 2 and the friction between the working box 17 and the first threaded rod 18 can be reduced respectively, thereby facilitating the rotation of the positive and negative threaded rods and the first threaded rod 18.

[0029] Referring to Figures 1 and 2, the surface of the clamping frame 7 is provided with anti-slip teeth 24, and the number of anti-slip teeth 24 is several.

[0030] As a technical optimization of this utility model, the anti-slip teeth 24 can increase the friction between the steel bar and the clamping frame 7, thereby improving the stability of the steel bar fixing.

[0031] Referring to Figure 2, a spring 25 is fixedly connected to the surface of the clamping frame 7. The surfaces of the spring 25 and the compression spring 16 are both coated with anti-rust paint.

[0032] As a technical optimization of this utility model, the spring 25 can ensure that the clamping frame 7 is always in close contact with the arc-shaped protrusion 8.

[0033] Referring to Figures 1, 2 and 4, a controller 21 is fixedly connected to the top of the base plate 1 via a bracket. The controller 21 is connected to the first motor 4, the second motor 20, the first electric cylinder 10 and the second electric cylinder 12 via signals.

[0034] As a technical optimization of this utility model, the controller 21 allows the operator to easily control the start and stop of the first motor 4, the second motor 20, the first electric cylinder 10, and the second electric cylinder 12.

[0035] Referring to Figure 1, mounting blocks 22 are fixedly connected to both the front and back of the base plate 1. The surface of the mounting block 22 is provided with mounting openings 23, and there are two mounting openings 23.

[0036] As a technical optimization of this utility model, by setting up the mounting block 22 and the mounting port 23, the operator can use bolts to install the device in a preset position.

[0037] The working principle and usage process of this utility model are as follows: When in use, the operator places the two ends of the bent U-shaped steel bar between the two clamping frames 7 on both sides. Then, the operator starts the first electric cylinder 10 to retract, which in turn drives the sliders 6 on both sides to move away from each other. The sliders 6 drive the clamping frames 7 to move away from the heating component 15. When the limiting block 9 on the surface of the clamping frame 7 contacts the arc-shaped protrusion 8, the arc-shaped protrusion 8 will push the clamping frame 7 to rotate, which in turn makes the clamping frames 7 on the front and rear sides move closer to each other, thereby clamping the two ends of the steel bar. Then, the operator starts the first motor 4 to rotate, which drives the positive and negative threaded rod to rotate, which in turn drives the movable blocks 3 and movable platform 5 on both sides to move away from each other, which in turn drives the clamping frames 7 on both sides to move away from each other, thereby straightening the bent steel bar.

[0038] 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 device for straightening waste steel bars, comprising a base plate (1), characterized in that: A drive box (2) is fixedly connected to the top of the base plate (1). A threaded rod with positive and negative threads is movably connected inside the drive box (2). Movable blocks (3) are threadedly connected to both sides of the surface of the threaded rod. The movable blocks (3) are movably connected to the drive box (2). A first motor (4) is fixedly connected to the right side of the drive box (2). The output end of the first motor (4) is fixedly connected to the threaded rod with positive and negative threads. A movable platform (5) is fixedly connected to the top of the movable block (3). A sliding groove is provided at the bottom of the inner wall of the movable platform (5). A slider (6) is movably connected inside the sliding groove. A clamping frame (7) is movably connected to the front and rear sides of the top of the slider (6). Arc-shaped protrusions (8) are provided on the front and back sides of the inner wall of the movable platform (5). A limit block (9) is provided on the surface of the clamping frame (7). A first electric cylinder (10) is fixedly connected to the bottom of the inner wall of the movable platform (5). The output end of the first electric cylinder (10) is fixedly connected to the slider (6).

2. The waste steel bar straightening device according to claim 1, characterized in that: The bottom plate (1) has movable grooves on the front and rear sides of its top, and a support block (11) is movably connected inside the movable grooves. A second electric cylinder (12) is fixedly connected to the top of the support block (11), and a support plate (13) is fixedly connected to the output end of the second electric cylinder (12). Limit rods (14) are movably connected to the front and rear sides of the support plate (13), and a heating component (15) is fixedly connected to the top of the limit rods (14). Compression springs (16) are fixedly connected to the front and rear sides of the top of the support plate (13), and the compression springs (16) are fixedly connected to the heating component (15).

3. The waste steel bar straightening device according to claim 2, characterized in that: The drive box (2) is fixedly connected to the front of the working box (17). The working box (17) is movably connected to the inside of the working box (17). The surface of the first threaded rod (18) is threadedly connected to the drive block (19). The drive block (19) is fixedly connected to the second electric cylinder (12). The drive block (19) is movably connected to the working box (17). The right side of the working box (17) is fixedly connected to the second motor (20). The output end of the second motor (20) is fixedly connected to the first threaded rod (18).

4. The waste steel bar straightening device according to claim 1, characterized in that: Bearings are fixedly connected inside the drive box (2) and the working box (17), and the bearings are fixedly connected to the positive and negative thread rods and the first thread rod (18) respectively. Lubricating oil is provided inside the bearings, and a sealing shaft cover is provided inside the bearings.

5. The waste steel bar straightening device according to claim 1, characterized in that: The surface of the clamping frame (7) is provided with anti-slip teeth (24), and the number of anti-slip teeth (24) is several.

6. The waste steel bar straightening device according to claim 1, characterized in that: A spring (25) is fixedly connected to the surface of the clamping frame (7), and the surfaces of the spring (25) and the compression spring (16) are both coated with anti-rust paint.

7. A waste steel bar straightening device according to claim 3, characterized in that: A controller (21) is fixedly connected to the top of the base plate (1) via a bracket. The controller (21) is connected to the first motor (4), the second motor (20), the first electric cylinder (10), and the second electric cylinder (12) via signals.

8. The waste steel bar straightening device according to claim 1, characterized in that: The base plate (1) has mounting blocks (22) fixedly connected to both the front and back sides. The mounting blocks (22) have mounting openings (23) on their surfaces, and there are two mounting openings (23).

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