Reinforcing steel bar straightening machine with protection mechanism

By introducing a protective mechanism into the rebar straightening machine, and utilizing rust-preventive coolant spray and a conical guide sleeve, the problems of heating up the straightening wheel and dust scattering are solved, achieving effective protection and adaptive straightening results.

CN223699170UActive Publication Date: 2025-12-23WUHAN CENTURY RUIXIN CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Application Number
CN202423036619.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-12-23
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

During the processing of existing rebar straightening machines, the straightening wheels heat up due to friction, reducing rigidity, and the dust and rust flying around cause damage to the environment and human health, lacking effective protection.

Method used

A steel bar straightening machine with a protective mechanism was designed, which includes a straightening component and a dust suppression and cooling component. The straightening wheel is cooled and dust is suppressed by spraying anti-rust coolant. The steel bar is guided by a conical guide sleeve, and the steel bar is discharged smoothly by a cutting component.

Benefits of technology

It achieves effective cooling and protection for straightening wheels, reduces dust dispersion, protects the processing environment and personnel health, and adapts to the needs of steel bars of different diameters.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of steel bar straightening machines, and discloses a steel bar straightening machine with a protection mechanism, which comprises a case, a case cover is detachably mounted at the top end of the case, a feed pipe is embedded in the left side of the case, a discharge port is formed in the right side of the case, the feed pipe corresponds to the discharge port in position, and the protection mechanism is arranged on the case cover. And a straightening assembly and a dust falling and cooling assembly are arranged on the inner wall of the machine box and located between the feeding pipe and the discharging opening. According to the reinforcing steel bar straightening machine, reinforcing steel bars enter the machine box through the feeding pipe, the first waterproof motor drives the installation ring to rotate, then the reinforcing steel bars are straightened through rotation of the straightening wheels, the straightened reinforcing steel bars penetrate out of the discharging port, and in the reinforcing steel bar straightening process, the dust falling and cooling assembly is arranged, so that the reinforcing steel bars are straightened, and the machining efficiency is improved. The rust-proof cooling liquid in the water tank is sprayed to the straightening assembly from the spray head through the conveying pipe by means of the circulating pump, the purposes of dust suppression and cooling are achieved through the rust-proof cooling liquid, and damage to the machining environment and the health of workers can be reduced.
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Description

Technical Field

[0001] This utility model relates to the field of rebar straightening machine technology, and more specifically to a rebar straightening machine with a protective mechanism. Background Technology

[0002] Steel bars are a commonly used building material. In the construction industry, steel bars are usually transported by winding. When steel bars need to be used, steel bar straightening machines are needed to straighten the bent steel bars.

[0003] Existing rebar straightening machines utilize straightening wheels or blocks that rotate on the outside of the rebar to achieve straightening. However, during processing, continuous friction between the straightening wheels and the rebar causes the wheels to overheat, reducing their rigidity and affecting their lifespan. Furthermore, during the straightening process, dust and rust adhering to the rebar surface can detach and float to the outside, potentially harming the processing environment and the health of workers. Existing rebar straightening machines lack protective features against these dust and rust, resulting in deficiencies in their operation.

[0004] In view of this, this utility model proposes a rebar straightening machine with a protective mechanism to solve this problem. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a rebar straightening machine with a protective mechanism to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a steel bar straightening machine with a protective mechanism, including a machine box, a cover that can be detachably installed on the top of the machine box, a feed pipe embedded on the left side of the machine box, and a discharge port opened on the right side of the machine box, with the feed pipe and the discharge port corresponding to each other, and a straightening component and a dust reduction and cooling component respectively provided on the inner wall of the machine box between the feed pipe and the discharge port.

[0007] The straightening assembly includes two fixed seats fixedly installed inside the chassis. Each fixed seat has a through hole on its surface. An installation ring is rotatably connected to the inner wall of the through hole. A first waterproof motor that drives the installation ring to rotate is fixedly installed at the top of the fixed seat. Two installation plates are fixedly installed on the inner wall of the installation ring. The two installation plates are parallel to each other. A straightening wheel is provided on the side of the two installation plates that are close to each other. The straightening wheels on the surfaces of the two installation plates are staggered.

[0008] The dust suppression and cooling assembly includes a water tank embedded at the bottom of the chassis, which contains rust-preventive coolant. A circulation pump is fixedly installed at the bottom of the chassis. The inlet of the circulation pump extends into the interior of the water tank and is fixedly fitted with a filter screen. A delivery pipe is fixedly installed at the outlet of the circulation pump. Several nozzles are embedded in the inner wall of the chassis. The outlet of the nozzles corresponds to the position of the straightening assembly, and the delivery pipe is connected to the nozzles.

[0009] Furthermore, conical guide sleeves are fixedly installed at the left and right ends of both mounting plates, with the tips of both conical guide sleeves facing to the right; by setting the conical guide sleeves, the movement position of the reinforcing bars can be guided.

[0010] Furthermore, a worm is fixedly mounted on the output shaft surface of the first waterproof motor, and a worm wheel ring is fixedly mounted on the outer ring surface of the mounting ring, with the worm meshing with the worm wheel ring.

[0011] Furthermore, a liquid level observation window is embedded in the front of the water tank, and a drain valve is embedded in the right side of the water tank; by setting the liquid level observation window, the liquid level inside the water tank can be observed, and by setting the drain valve, the rust-preventive coolant inside the water tank can be drained and replaced.

[0012] Furthermore, the inner wall of the feed pipe is provided with a feed assembly, which includes openings on the bottom and top sides of the feed pipe. Four fixing plates are symmetrically fixedly installed on the outer wall of the feed pipe corresponding to the two openings. A lower extrusion roller is rotatably connected between the two lower fixing plates, and a second waterproof motor for driving the lower extrusion roller to rotate is fixedly installed on the surface of one of the lower fixing plates. A connecting plate is provided on the surface of each of the two upper fixing plates, and an upper extrusion roller is rotatably connected between the two connecting plates. The positions of the upper extrusion roller and the lower extrusion roller correspond. By setting up the feed assembly and using the second waterproof motor to drive the lower extrusion roller to rotate, the purpose of feeding and conveying the steel bars can be achieved under the extrusion action of the upper extrusion roller.

[0013] Furthermore, the surfaces of the two fixed plates on the upper side are provided with limiting grooves, the fixed plates are slidably connected inside the limiting grooves, and a support spring is fixedly installed between the inner top wall of the limiting groove and the top surface of the fixed plate; the connecting plate is slidably installed on the surface of the fixed plate, and the height of the upper extrusion roller can be changed under the elastic force of the support spring, so as to adapt to the use of steel bars of different diameters.

[0014] Furthermore, a cutting assembly is provided on the right side of the machine housing corresponding to the discharge port. The cutting assembly includes a mounting frame on the right side of the machine housing. A support block is fixedly installed on the inner bottom wall of the mounting frame, and a hydraulic rod is embedded in the inner top wall of the mounting frame. A cutter is fixedly installed on the telescopic end of the hydraulic rod. The cutter is slidably connected to the inner wall of the mounting frame, and the cutter is positioned corresponding to the support block. By setting up the cutting assembly, when the steel bar passes through the discharge port, the hydraulic rod extends and drives the cutter to move closer to the support block, thereby achieving the purpose of cutting the steel bar.

[0015] Furthermore, the mounting frame is movably mounted on the surface of the chassis, and a buffer rod is fixedly mounted on the right side of the chassis. The mounting frame is slidably connected to the surface of the buffer rod, and a reset spring is sleeved on the right side of the buffer rod to drive the mounting frame to move to the left and reset. Because the mounting frame is slidably connected to the surface of the buffer rod, and the reset spring presses the mounting frame to the left, during the process of cutting the steel bar with the cutter, the mounting frame can move to the right synchronously with the steel bar. There will be no lateral relative movement between the cutter and the steel bar, and the movement of the steel bar by the cutter will not cause obstruction, ensuring that the steel bar is discharged smoothly.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. In this utility model, the reinforcing bar enters the machine casing through the feed pipe, and the mounting ring is driven to rotate by the first waterproof motor. Then, the straightening wheel is used to straighten the reinforcing bar. After straightening, the reinforcing bar is discharged from the discharge port. During the straightening process, a dust suppression and cooling component is set up. The circulating pump uses a water tank to spray the anti-rust coolant from the water tank through the delivery pipe to the straightening component. The anti-rust coolant is used to suppress dust and reduce temperature, thereby achieving the purpose of cooling and protecting the straightening wheel. It can also reduce the harm to the processing environment and the health of the workers.

[0018] 2. This utility model, by setting a conical guide sleeve, can guide the movement of the reinforcing bars; by setting a liquid level observation window, the liquid level inside the water tank can be observed; by setting a drain valve, the anti-rust coolant inside the water tank can be drained and replaced; by setting a feeding assembly, the lower extrusion wheel is driven to rotate by a second waterproof motor, and the reinforcing bars can be fed and conveyed under the extrusion action of the upper extrusion wheel; by a connecting plate slidingly installed on the surface of the fixed plate, the height of the upper extrusion wheel can be changed under the elastic force of the support spring, thereby adapting to the use of reinforcing bars of different diameters.

[0019] 3. This utility model, by setting a cutting component, when the steel bar passes through the discharge port, the hydraulic rod extends and drives the cutter to approach the support block, thereby achieving the purpose of cutting the steel bar; the mounting frame is slidably connected to the surface of the buffer rod, and the return spring is used to press the mounting frame to the left. During the process of cutting the steel bar with the cutter, the mounting frame can move to the right synchronously with the steel bar. There will be no lateral relative movement between the cutter and the steel bar, and the movement of the cutter on the steel bar will not cause obstruction, ensuring that the steel bar is discharged smoothly. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention from one perspective;

[0021] Figure 2 This is a two-dimensional structural schematic diagram of the present invention from a different perspective;

[0022] Figure 3 This is a schematic diagram of the orthographic section of the present invention;

[0023] Figure 4 This is a side sectional view of the present invention.

[0024] Figure 5 This is a side sectional view of the fixing base of this utility model;

[0025] Figure 6 This is a three-dimensional cross-sectional view of the feed pipe of this utility model;

[0026] Figure 7 for Figure 2 Enlarged structural diagram at point A in the middle.

[0027] The attached diagram is labeled as follows: 1. Chassis; 2. Cover; 3. Feed pipe; 4. Discharge port; 5. Fixing base; 6. Mounting ring; 7. First waterproof motor; 8. Mounting plate; 9. Straightening wheel; 10. Water tank; 11. Circulating pump; 12. Filter screen; 13. Conveying pipe; 14. Nozzle; 15. Conical guide sleeve; 16. Worm gear; 17. Worm wheel ring; 18. Liquid level observation window; 19. Drain valve; 20. Fixing plate; 21. Lower extrusion wheel; 22. Second waterproof motor; 23. Connecting plate; 24. Upper extrusion wheel; 25. Support spring; 26. Mounting frame; 27. Pillow block; 28. Hydraulic rod; 29. ​​Cutter; 30. Buffer rod; 31. Return spring. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The steel bar straightening machine with a protective mechanism involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Reference Figures 1 to 7 This utility model provides a steel bar straightening machine with a protective mechanism, including a machine box 1, a cover 2 that is detachably installed on the top of the machine box 1, a feed pipe 3 embedded on the left side of the machine box 1, and a discharge port 4 opened on the right side of the machine box 1, with the feed pipe 3 and the discharge port 4 corresponding to each other.

[0030] The inner wall of the feed pipe 3 is provided with a feed assembly, which includes openings on the bottom and top sides of the feed pipe 3. Four fixing plates 20 are symmetrically fixedly installed on the outer wall of the feed pipe 3 corresponding to the two openings. A lower extrusion roller 21 is rotatably connected between the two lower fixing plates 20. A second waterproof motor 22 for driving the lower extrusion roller 21 is fixedly installed on the surface of one of the lower fixing plates 20. A connecting plate 23 is provided on the surface of the two upper fixing plates 20. An upper extrusion roller 24 is rotatably connected between the two connecting plates 23. The positions of the upper extrusion roller 24 and the lower extrusion roller 21 are corresponding.

[0031] Furthermore, when using the device, the entire device is connected to an external power control system in advance. By setting up a feeding assembly, the lower extrusion wheel 21 is driven to rotate by the second waterproof motor 22. Under the extrusion action of the upper extrusion wheel 24, the purpose of feeding and conveying steel bars can be achieved.

[0032] Limiting grooves are provided on the surfaces of the two upper fixing plates 20. The fixing plates 20 are slidably connected inside the limiting grooves, and a support spring 25 is fixedly installed between the inner top wall of the limiting groove and the top surface of the fixing plate 20.

[0033] Furthermore, the connecting plate 23 is slidably mounted on the surface of the fixed plate 20. Under the elastic force of the supporting spring 25, the height of the upper extrusion roller 24 can be changed, thereby adapting to the use of steel bars of different diameters.

[0034] A straightening assembly and a dust-reducing and cooling assembly are respectively installed on the inner wall of the casing 1 between the feed pipe 3 and the discharge port 4.

[0035] The straightening assembly includes two mounting bases 5 fixedly installed inside the chassis 1. Each mounting base 5 has a through hole on its surface. An installation ring 6 is rotatably connected to the inner wall of the through hole. A first waterproof motor 7 that drives the installation ring 6 to rotate is fixedly installed at the top of the mounting base 5.

[0036] A worm gear 16 is fixedly installed on the output shaft surface of the first waterproof motor 7, and a worm wheel ring 17 is fixedly installed on the outer ring surface of the mounting ring 6. The worm gear 16 and the worm wheel ring 17 mesh with each other.

[0037] Two mounting plates 8 are fixedly installed on the inner wall of the mounting ring 6. The two mounting plates 8 are parallel to each other, and a straightening wheel 9 is provided on the side of the two mounting plates 8 that is close to each other. The straightening wheels 9 on the surface of the two mounting plates 8 are staggered.

[0038] It is worth noting that when straightening the reinforcing bars, the reinforcing bars are fed into the machine box 1 through the feed pipe 3. The first waterproof motor 7 drives the mounting ring 6 to rotate, which in turn drives the straightening wheel 9 to rotate and rub around the outside of the reinforcing bar. Then, the straightening wheel 9 is used to straighten the reinforcing bar. The straightened reinforcing bar is then passed out through the discharge port 4.

[0039] The dust suppression and cooling assembly includes a water tank 10 embedded at the bottom of the chassis 1. The inside of the water tank 10 contains anti-rust coolant. A liquid level observation window 18 is embedded on the front of the water tank 10, and a drain valve 19 is embedded on the right side of the water tank 10.

[0040] Furthermore, by setting up a liquid level observation window 18, the liquid level inside the water tank 10 can be observed, and by setting up a drain valve 19, the dirty anti-rust coolant inside the water tank 10 can be drained and replaced.

[0041] A circulation pump 11 is fixedly installed at the bottom of the casing 1. The inlet end of the circulation pump 11 extends into the interior of the water tank 10 and is fixedly installed with a filter screen 12. A delivery pipe 13 is fixedly installed at the outlet end of the circulation pump 11. Several nozzles 14 are embedded in the inner wall of the casing 1. The outlet end of the nozzle 14 corresponds to the position of the straightening component. The delivery pipe 13 is connected to the nozzle 14.

[0042] It is worth noting that during the straightening process of steel bars, by setting up a dust suppression and cooling component, the circulating pump 11 uses the rust-preventive coolant inside the water tank 10 to be sprayed from the nozzle 14 through the delivery pipe 13 to the straightening component. The rust-preventive coolant is used to suppress dust and reduce temperature, thereby achieving the purpose of cooling and protecting the straightening wheel 9, and reducing the harm to the processing environment and the health of the workers.

[0043] Conical guide sleeves 15 are fixedly installed on the left and right ends of the two mounting plates 8, with the tips of the two conical guide sleeves 15 facing to the right.

[0044] Furthermore, by setting the tapered guide sleeve 15, the movement position of the reinforcing bar can be guided.

[0045] A cutting assembly is provided on the right side of the casing 1 corresponding to the discharge port 4. The cutting assembly includes a mounting frame 26 on the right side of the casing 1. A pillow block 27 is fixedly installed on the inner bottom wall of the mounting frame 26. A hydraulic rod 28 is embedded in the inner top wall of the mounting frame 26. A cutter 29 is fixedly installed on the telescopic end of the hydraulic rod 28. The cutter 29 is slidably connected to the inner wall of the mounting frame 26. The cutter 29 and the pillow block 27 are positioned corresponding to each other.

[0046] Furthermore, by setting up a cutting component, when the reinforcing bar is straightened and passes through the discharge port 4, the hydraulic rod 28 extends to drive the cutter 29 to approach the pillow block 27, thereby achieving the purpose of cutting the reinforcing bar.

[0047] Mounting frame 26 is movably mounted on the surface of chassis 1. A buffer rod 30 is fixedly mounted on the right side of chassis 1. Mounting frame 26 is slidably connected to the surface of buffer rod 30, and a reset spring 31 for driving mounting frame 26 to move to the left and reset is sleeved on the right side of buffer rod 30.

[0048] Furthermore, the mounting frame 26 is slidably connected to the surface of the buffer rod 30, and the reset spring 31 presses the mounting frame 26 to the left. During the process of cutting the steel bar with the cutter 29, the mounting frame 26 can move to the right synchronously with the steel bar. There will be no lateral relative movement between the cutter 29 and the steel bar, and the movement of the cutter 29 on the steel bar will not cause obstruction, ensuring that the steel bar is discharged smoothly.

[0049] Finally, it should be noted that the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A rebar straightening machine with a protective mechanism, comprising a machine housing (1), wherein a cover (2) is detachably installed on the top of the machine housing (1), characterized in that: The left side of the chassis (1) is fitted with a feed pipe (3), and the right side of the chassis (1) is provided with a discharge port (4). The positions of the feed pipe (3) and the discharge port (4) are corresponding, and the inner wall of the chassis (1) is provided with a straightening component and a dust reduction and cooling component between the feed pipe (3) and the discharge port (4). The straightening assembly includes two fixed seats (5) fixedly installed inside the chassis (1). The surfaces of the two fixed seats (5) are provided with through holes. The inner walls of the through holes are rotatably connected to the mounting rings (6). The top of the fixed seats (5) is fixedly installed with a first waterproof motor (7) that drives the mounting rings (6) to rotate. The inner walls of the mounting rings (6) are fixedly installed with two mounting plates (8). The two mounting plates (8) are parallel to each other. The sides of the two mounting plates (8) that are close to each other are provided with straightening wheels (9), and the straightening wheels (9) on the surfaces of the two mounting plates (8) are misaligned. The dust reduction and cooling assembly includes a water tank (10) embedded at the bottom of the chassis (1). The water tank (10) contains rust-preventive coolant. A circulation pump (11) is fixedly installed at the bottom of the chassis (1). The inlet end of the circulation pump (11) extends into the interior of the water tank (10) and is fixedly installed with a filter screen (12). A delivery pipe (13) is fixedly installed at the outlet end of the circulation pump (11). Several nozzles (14) are embedded in the inner wall of the chassis (1). The outlet end of the nozzle (14) corresponds to the position of the straightening assembly. The delivery pipe (13) is connected to the nozzle (14).

2. A rebar straightening machine with a protective mechanism according to claim 1, characterized in that: Conical guide sleeves (15) are fixedly installed on the left and right ends of the two mounting plates (8), with the tips of the two conical guide sleeves (15) facing to the right.

3. A rebar straightening machine with a protective mechanism according to claim 1, characterized in that: A worm (16) is fixedly installed on the output shaft surface of the first waterproof motor (7), and a worm wheel ring (17) is fixedly installed on the outer ring surface of the mounting ring (6). The worm (16) and the worm wheel ring (17) mesh with each other.

4. A rebar straightening machine with a protective mechanism according to claim 1, characterized in that: The water tank (10) is fitted with a liquid level observation window (18) on the front and a drain valve (19) on the right side of the water tank (10).

5. A rebar straightening machine with a protective mechanism according to claim 1, characterized in that: The inner wall of the feed pipe (3) is provided with a feed assembly, which includes openings on the bottom and top sides of the feed pipe (3). Four fixing plates (20) are symmetrically fixed on the outer wall of the feed pipe (3) corresponding to the two openings. A lower extrusion wheel (21) is rotatably connected between the two lower fixing plates (20). A second waterproof motor (22) for driving the lower extrusion wheel (21) is fixedly installed on the surface of one of the lower fixing plates (20). A connecting plate (23) is provided on the surface of the two upper fixing plates (20). An upper extrusion wheel (24) is rotatably connected between the two connecting plates (23). The positions of the upper extrusion wheel (24) and the lower extrusion wheel (21) are corresponding.

6. A rebar straightening machine with a protective mechanism according to claim 5, characterized in that: Limiting grooves are provided on the surfaces of the two upper fixing plates (20). The fixing plates (20) are slidably connected inside the limiting grooves, and a support spring (25) is fixedly installed between the inner top wall of the limiting groove and the top surface of the fixing plate (20).

7. A rebar straightening machine with a protective mechanism according to claim 1, characterized in that: A cutting assembly is provided on the right side of the machine housing (1) corresponding to the discharge port (4). The cutting assembly includes a mounting frame (26) on the right side of the machine housing (1). A pillow block (27) is fixedly installed on the inner bottom wall of the mounting frame (26). A hydraulic rod (28) is embedded in the inner top wall of the mounting frame (26). A cutter (29) is fixedly installed at the telescopic end of the hydraulic rod (28). The cutter (29) is slidably connected to the inner wall of the mounting frame (26). The cutter (29) and the pillow block (27) are positioned correspondingly.

8. A rebar straightening machine with a protective mechanism according to claim 7, characterized in that: The mounting frame (26) is movably mounted on the surface of the chassis (1). A buffer rod (30) is fixedly mounted on the right side of the chassis (1). The mounting frame (26) is slidably connected to the surface of the buffer rod (30), and a reset spring (31) for driving the mounting frame (26) to move to the left and reset is sleeved on the right side of the buffer rod (30).