Round steel straightening equipment and using method thereof

Abstract

The invention relates to the technical field of round steel machining and discloses round steel straightening equipment and a using method thereof.The round steel straightening equipment comprises a bottom plate, a first mounting plate is fixedly mounted on the upper surface of the bottom plate, three first correcting wheels are fixedly mounted on the upper surface of the first mounting plate, and a second mounting plate is fixedly mounted on the upper surface of the bottom plate; a mounting groove is formed in the front surface of the second mounting plate, the adjusting mechanism is arranged on the bottom plate, a connecting plate can be adjusted through a hydraulic telescopic rod, so that the connecting plate moves in the mounting groove, and a plurality of U-shaped mounting plates at the lower end of the connecting plate and fourth correction wheels on the U-shaped mounting plates can be greatly adjusted at first; and the adjusting height is observed through the graduated scale and the rectangular hole, so that the difficulty of adjusting the distance between the fourth correcting wheel and the second correcting wheel by a worker is reduced, the time required for adjusting the equipment is reduced, the working efficiency of the worker is improved, and thus the working efficiency of the equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of round steel processing, in particular to round steel straightening equipment and a use method thereof. Background Art

[0002] Round steel refers to a solid long steel strip with a circular cross section. Its specifications are expressed in diameter, in millimeters (mm). For example, "50mm" means a round steel with a diameter of 50 mm. It is a common metal raw material, cylindrical, with a smooth surface and uniform cross section. Its main component is iron. According to the carbon content, it can be divided into low-carbon steel, medium-carbon steel and high-carbon steel. Round steel is widely used in construction, machinery manufacturing, automobiles, furniture and other fields. It can be used as structural parts, shaft parts, springs, etc. Its advantages are good toughness and plasticity, easy processing and welding. In addition, round steel also has high strength and wear resistance. It is an indispensable material in industrial production and daily life. According to the use and performance requirements, round steel can be subjected to surface treatments such as heat treatment and plating to improve its performance.

[0003] When using existing round steel straightening equipment, it is usually necessary to adjust the correction wheel before straightening the round steel to ensure that the equipment can straighten round steels of different diameters. In order to more accurately control the correction force and direction, the existing round steel straightening equipment usually allows each correction wheel to be adjusted independently, so that it can make subtle adjustments according to the different bending degrees and positions of the round steel, ensure uniform force during the correction process, avoid over-correction or under-correction, so that when adjusting the correction wheel, the staff needs to adjust multiple correction wheels, and they need to make larger adjustments before making fine adjustments. This results in a long adjustment time when adjusting multiple correction wheels, which is time-consuming and labor-intensive, affecting the use of the round steel straightening equipment and is not conducive to the straightening of round steel. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a round steel straightening device, which solves the problem that when adjusting the correction wheel, the staff needs to adjust multiple correction wheels, and needs to make larger adjustments before making fine adjustments. This results in a long adjustment time when adjusting the multiple correction wheels, which is time-consuming and labor-intensive, affects the use of the round steel straightening device, and is not conducive to the straightening of the round steel.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solution: a round steel straightening device, comprising a bottom plate, a first mounting plate fixedly mounted on the upper surface of the bottom plate, three first correction wheels fixedly mounted on the upper surface of the first mounting plate, a second mounting plate fixedly mounted on the upper surface of the bottom plate, a mounting groove being provided on the front surface of the second mounting plate;

[0008] An adjustment mechanism is arranged on the base plate, and the adjustment mechanism includes a connecting plate, a hydraulic telescopic rod and a plurality of first adjustment rotating rods. A U-shaped groove is opened on the upper inner wall of the mounting groove, and the connecting plate is slidably mounted on the inner wall of the U-shaped groove, and the hydraulic telescopic rod is fixedly mounted on the upper surface of the second mounting plate, and the telescopic end of the hydraulic telescopic rod slides through the inside of the U-shaped groove, and the hydraulic telescopic rod is fixedly connected to the connecting plate, and a plurality of first adjustment rotating rods are rotatably mounted on the upper surface of the second mounting plate, and the lower ends of the plurality of first adjustment rotating rods are rotatably mounted on the lower surface of the connecting plate, and the plurality of first adjustment rotating rods are threadedly connected to the connecting plate, and the plurality of first adjustment rotating rods are slidably connected to the inside of the second mounting plate, and the lower ends of the plurality of first adjustment rotating rods are rotatably mounted with the U-shaped mounting plate.

[0009] Preferably, the adjustment mechanism also includes a convex rod and a limit rod, the convex rod is fixedly mounted on the upper surface of the U-shaped mounting plate, a convex groove is provided on the lower surface of the first adjustment rotating rod, the convex rod is rotatably mounted inside the convex groove, the limit rod is fixedly mounted on the front end of the upper surface of the U-shaped mounting plate, a circular groove is provided on the lower surface of the connecting plate corresponding to the position of the limit rod, and the limit rod is slidably mounted inside the circular groove.

[0010] Preferably, a plurality of second correction wheels are fixedly mounted on the rear inner wall of the mounting groove, and a plurality of U-shaped mounting plates and the plurality of second correction wheels are arranged in a staggered manner.

[0011] Preferably, two rectangular grooves are provided on the upper surface of the first mounting plate, rectangular plates are slidably mounted inside the two rectangular grooves, third correction wheels are fixedly mounted on the upper surfaces of the two rectangular plates, and the three first correction wheels and the two third correction wheels are staggered.

[0012] Preferably, a second adjusting rod is rotatably installed on the front surface of the first mounting plate at positions corresponding to the two rectangular grooves, and the rear ends of the two second adjusting rods are respectively rotated to penetrate into the corresponding rectangular grooves, and the two rectangular plates are respectively threadedly connected to the corresponding second adjusting rods.

[0013] Preferably, circular holes are provided on the left and right inner walls of the mounting groove.

[0014] Preferably, a fourth correction wheel is fixedly mounted on the inner walls of the plurality of U-shaped mounting plates.

[0015] Preferably, a rectangular hole is provided on the front surface of the second mounting plate, the rectangular hole is communicated with the interior of the U-shaped groove, and a scale is fixedly mounted on the front surface of the second mounting plate.

[0016] A method for using a round steel straightening device,

[0017] S1: First, install the round steel to be straightened onto the device, then rotate the two second adjusting rotating rods, which drive the two rectangular plates to move inside the two rectangular grooves, so that the two third correction wheels on the upper surfaces of the two rectangular plates are adjusted, so that the two third correction wheels and the three first correction wheels move away from or close to each other, and the spacing between the two third correction wheels and the three first correction wheels is adjusted, and the spacing between the multiple fourth correction wheels and the multiple second correction wheels is adjusted. A servo valve for controlling the hydraulic telescopic rod is provided at the rear end of the upper surface of the bottom plate, and the hydraulic telescopic rod is started for standby;

[0018] S2: The hydraulic telescopic rod drives the connecting plate to move inside the U-shaped groove, thereby adjusting the U-shaped groove and the multiple U-shaped mounting plates on the lower surface of the connecting plate, thereby adjusting the spacing between the multiple fourth correction wheels and the multiple second correction wheels to be close to the distance that needs to be fine-tuned, and observing the adjusted height through the scale and the rectangular hole, and rotating the first adjustment rod after the adjustment is completed;

[0019] S3: Rotate the first adjusting rotating rod corresponding to the U-shaped mounting plate to be adjusted, so that the first adjusting rotating rod can drive the U-shaped mounting plate rotatably connected thereto and the fourth correction wheel fixedly mounted on the U-shaped mounting plate to perform fine adjustment on the height, and the fourth correction wheel is adjusted to a suitable position for standby use;

[0020] S4: After the adjustment is completed, the round steel that needs to be straightened can be straightened through the traction mechanism.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the present invention provides a round steel straightening device, which has the following beneficial effects:

[0023] 1. The round steel straightening equipment can adjust the connecting plate through the hydraulic telescopic rod, so that the connecting plate can be moved inside the mounting groove, so that the multiple U-shaped mounting plates at the lower end of the connecting plate and the fourth correction wheel on the U-shaped mounting plate can be adjusted once, and the height of the adjustment can be observed through the scale and the rectangular hole, which reduces the difficulty of the staff to adjust the distance between the fourth correction wheel and the second correction wheel, reduces the time required for adjusting the equipment, improves the work efficiency of the staff, and thus improves the work efficiency of the equipment.

[0024] 2. After the round steel straightening equipment adjusts the heights of multiple fourth correction wheels through the hydraulic telescopic rod, the first adjusting rotating rod corresponding to the fourth correction wheel that needs to be fine-tuned can be rotated to move the first adjusting rotating rod, so that the first adjusting rotating rod drives the U-shaped mounting plate and the fourth correction wheel that are rotatably installed at its lower end to perform fine-tuning on the height, thereby further fine-tuning the height of the fourth correction wheel, so that each correction wheel can be adjusted independently, and subtle adjustments can be made according to the different bending degrees and positions of the round steel, avoiding over-correction or under-correction, which may cause damage to the round steel, thereby improving the use efficiency of the equipment.

[0025] 3. The method of using the round steel straightening equipment is as follows: after placing the round steel between the three first correction wheels and the two third correction wheels and between the multiple U-shaped mounting plates and the multiple second correction wheels, the hydraulic telescopic rod can be directly started to make the hydraulic telescopic rod make a larger adjustment to the distance between the fourth correction wheel and the second correction wheel, thereby reducing the difficulty of subsequent adjustment of the fourth correction wheel, thereby further improving the work efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall top view of the round steel straightening equipment of the present invention;

[0027] Figure 2 It is a schematic diagram of the internal cutaway front view structure of the round steel straightening device of the present invention;

[0028] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0029] Figure 4 It is a schematic diagram of the internal cutaway top view of the round steel straightening device of the present invention;

[0030] Figure 5 It is a schematic diagram of the internal cutaway side view of the round steel straightening device of the present invention;

[0031] Figure 6 for Figure 5 Enlarged structural diagram at A in the middle.

[0032] In the figure: 1, bottom plate; 2, first mounting plate; 3, first correction wheel; 4, second mounting plate; 5, mounting groove; 6, connecting plate; 7, hydraulic telescopic rod; 8, U-shaped groove; 9, first adjustment rod; 10, U-shaped mounting plate; 11, convex rod; 12, limit rod; 13, convex groove; 14, circular groove; 15, second correction wheel; 16, rectangular groove; 17, rectangular plate; 18, third correction wheel; 19, second adjustment rod; 20, circular hole; 21, fourth correction wheel; 22, scale; 23, rectangular hole. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-6 The present invention provides a new technical solution: a round steel straightening device, comprising a bottom plate 1, a first mounting plate 2 is fixedly mounted on the upper surface of the bottom plate 1, three first correction wheels 3 are fixedly mounted on the upper surface of the first mounting plate 2, a second mounting plate 4 is fixedly mounted on the upper surface of the bottom plate 1, and a mounting groove 5 is opened on the front surface of the second mounting plate 4;

[0035] The adjustment mechanism is arranged on the base plate 1. The adjustment mechanism includes a connecting plate 6, a hydraulic telescopic rod 7 and a plurality of first adjustment rotating rods 9. A U-shaped groove 8 is opened on the upper inner wall of the mounting groove 5. The connecting plate 6 is slidably mounted on the inner wall of the U-shaped groove 8. The hydraulic telescopic rod 7 is fixedly mounted on the upper surface of the second mounting plate 4. The telescopic end of the hydraulic telescopic rod 7 slides through the inside of the U-shaped groove 8. The hydraulic telescopic rod 7 is fixedly connected to the connecting plate 6. A plurality of first adjustment rotating rods 9 are rotatably mounted on the upper surface of the second mounting plate 4. The lower ends of the plurality of first adjustment rotating rods 9 are rotatably penetrated to the lower surface of the connecting plate 6. The plurality of first adjustment rotating rods 9 are threadedly connected to the connecting plate 6. The plurality of first adjustment rotating rods 9 are slidably connected to the inside of the second mounting plate 4. The lower ends of the plurality of first adjustment rotating rods 9 are rotatably mounted with a U-shaped mounting plate 10.

[0036] Furthermore, the connecting plate 6 can be adjusted by the hydraulic telescopic rod 7, so that the connecting plate 6 moves inside the mounting groove 5, so that the multiple U-shaped mounting plates 10 at the lower end of the connecting plate 6 and the fourth correction wheel 21 on the U-shaped mounting plate 10 can be adjusted once more, and the adjusted height can be observed through the scale 22 and the rectangular hole 23, thereby reducing the difficulty of adjusting the distance between the fourth correction wheel 21 and the second correction wheel 15 for the staff, reducing the time required for adjusting the equipment, improving the work efficiency of the staff, and thus improving the work efficiency of the equipment.

[0037] Furthermore, the adjustment mechanism also includes a convex rod 11 and a limit rod 12. The convex rod 11 is fixedly mounted on the upper surface of the U-shaped mounting plate 10. A convex groove 13 is provided on the lower surface of the first adjustment rotating rod 9. The convex rod 11 is rotatably mounted inside the convex groove 13. The limit rod 12 is fixedly mounted on the front end of the upper surface of the U-shaped mounting plate 10. A circular groove 14 is provided on the lower surface of the connecting plate 6 corresponding to the position of the limit rod 12. The limit rod 12 is slidably mounted inside the circular groove 14.

[0038] Furthermore, after adjusting the heights of multiple fourth correction wheels 21 by the hydraulic telescopic rod 7, the first adjusting rod 9 corresponding to the fourth correction wheel 21 that needs to be fine-tuned can be rotated, so that the first adjusting rod 9 can move, and the first adjusting rod 9 drives the U-shaped mounting plate 10 and the fourth correction wheel 21 to be rotated and installed at its lower end to fine-tune the height, thereby further fine-tuning the height of the fourth correction wheel 21, so that each correction wheel can be adjusted independently, and subtle adjustments can be made according to the different bending degrees and positions of the round steel, avoiding over-correction or under-correction, which may cause damage to the round steel, thereby improving the use efficiency of the equipment.

[0039] Furthermore, a plurality of second correction wheels 15 are fixedly mounted on the rear inner wall of the mounting groove 5 , and the plurality of U-shaped mounting plates 10 and the plurality of second correction wheels 15 are arranged in a staggered manner.

[0040] Furthermore, two rectangular grooves 16 are provided on the upper surface of the first mounting plate 2, and rectangular plates 17 are slidably installed inside the two rectangular grooves 16. Third correction wheels 18 are fixedly installed on the upper surfaces of the two rectangular plates 17. The three first correction wheels 3 and the two third correction wheels 18 are staggered.

[0041] Furthermore, a second adjusting rod 19 is rotatably installed on the front surface of the first mounting plate 2 at the position corresponding to the two rectangular grooves 16, and the rear ends of the two second adjusting rods 19 are respectively rotated to penetrate into the corresponding rectangular grooves 16, and the two rectangular plates 17 are respectively threadedly connected to the corresponding second adjusting rods 19.

[0042] Furthermore, circular holes 20 are formed on the left and right inner walls of the installation groove 5 .

[0043] Furthermore, a fourth correction wheel 21 is fixedly mounted on the inner wall of the plurality of U-shaped mounting plates 10 .

[0044] Furthermore, a rectangular hole 23 is opened on the front surface of the second mounting plate 4, and the rectangular hole 23 is communicated with the interior of the U-shaped groove 8. A scale 22 is fixedly installed on the front surface of the second mounting plate 4.

[0045] Furthermore, all the correction wheels mentioned above are composed of a rotating rod and a correction wheel, and the correction wheel is rotatably mounted on the outer surface of the rotating rod.

[0046] A method for using a round steel straightening device,

[0047] S1: First, install the round steel to be straightened onto the device, then rotate the two second adjusting rotating rods 19, and the two second adjusting rotating rods 19 drive the two rectangular plates 17 to move inside the two rectangular grooves 16, so that the two third correction wheels 18 on the upper surfaces of the two rectangular plates 17 are adjusted, so that the two third correction wheels 18 and the three first correction wheels 3 move away from or close to each other, and the spacing between the two third correction wheels 18 and the three first correction wheels 3 is adjusted, and the spacing between the plurality of fourth correction wheels 21 and the plurality of second correction wheels 15 is adjusted. A servo valve for controlling the hydraulic telescopic rod 7 is provided at the rear end of the upper surface of the bottom plate 1. The specific model of the servo valve is SM4-20(15)57-80 / 40-10-H607H. The servo valve is a prior art and will not be described in detail here. Start the hydraulic telescopic rod 7 for standby use.

[0048] S2: The hydraulic telescopic rod 7 drives the connecting plate 6 to move inside the U-shaped groove 8, so as to adjust the U-shaped groove 8 and the multiple U-shaped mounting plates 10 on the lower surface of the connecting plate 6, so as to adjust the spacing between the multiple fourth correction wheels 21 and the multiple second correction wheels 15 to make them close to the distance required for fine adjustment, and observe the height of the adjustment through the scale 22 and the rectangular hole 23, and rotate the first adjustment rod 9 after the adjustment is completed;

[0049] S3: The first adjusting rotating rod 9 corresponding to the U-shaped mounting plate 10 to be adjusted is rotated, so that the first adjusting rotating rod 9 can drive the U-shaped mounting plate 10 rotatably connected thereto and the fourth correction wheel 21 fixedly mounted on the U-shaped mounting plate 10 to perform fine adjustment on the height, and the fourth correction wheel 21 is adjusted to a suitable position for standby use;

[0050] S4: After the adjustment is completed, the round steel that needs to be straightened can be straightened by a traction mechanism. The traction mechanism is a prior art and will not be described in detail here.

[0051] Furthermore, by placing the round steel between the three first correction wheels 3 and the two third correction wheels 18 and between the multiple U-shaped mounting plates 10 and the multiple second correction wheels 15, the hydraulic telescopic rod 7 can be directly started to make the hydraulic telescopic rod 7 make a larger adjustment to the distance between the fourth correction wheel 21 and the second correction wheel 15, thereby reducing the difficulty of subsequent adjustment of the fourth correction wheel 21, thereby further improving the work efficiency of the staff.

[0052] Working principle: When using this equipment to straighten round steel, install the round steel to be straightened onto the equipment, so that the round steel is installed between the three first correction wheels 3 and the two third correction wheels 18 and between the multiple U-shaped mounting plates 10 and the multiple second correction wheels 15, and then rotate the two second adjustment rotating rods 19, so that the two second adjustment rotating rods 19 rotate to drive the two rectangular plates 17 threadedly connected thereto to move, and the movement of the two rectangular plates 17 drives the two third correction wheels 18 to move, thereby adjusting the spacing between the two third correction wheels 18 and the three first correction wheels 3. After the adjustment is completed, start the hydraulic telescopic rod 7, so that the hydraulic telescopic rod 7 drives the connecting plate 6 fixedly connected thereto to move, and the connecting plate 6 moves inside the U-shaped groove 8, thereby driving the multiple U-shaped mounting plates 10 at the lower end of the connecting plate 6 and the fourth correction wheel 21 on the U-shaped mounting plate 10 to move accordingly, thereby adjusting the spacing between the multiple fourth correction wheels 21 and the multiple second correction wheels 15. The heights of multiple fourth correction wheels 21 can be adjusted directly by adjusting the spacing between them, which reduces the difficulty of adjustment for the staff and reduces the time required for adjusting the heights of multiple fourth correction wheels 21. After the adjustment is completed, the first adjusting rod 9 corresponding to the fourth correction wheel 21 that needs to be fine-tuned can be rotated to make the first adjusting rod 9 move up and down inside the connecting plate 6, so that the first adjusting rod 9 drives the U-shaped mounting plate 10 rotatably connected to it and the fourth correction wheel 21 installed on the U-shaped mounting plate 10 to move synchronously, so as to fine-tune the heights of different fourth correction wheels 21, which is convenient for the staff to adjust the spacing between the fourth correction wheel 21 and the second correction wheel 15, and can more accurately control the correction force and direction, so that each correction wheel can be adjusted independently, so that it can be finely adjusted according to the different bending degrees and positions of the round steel, ensuring uniform force during the correction process, avoiding over-correction or under-correction, resulting in damage to the round steel.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A round steel straightening device, comprising a base plate (1), a first mounting plate (2) being fixedly mounted on the upper surface of the base plate (1), and three first correction wheels (3) being fixedly mounted on the upper surface of the first mounting plate (2), characterized in that: A second mounting plate (4) is fixedly mounted on the upper surface of the base plate (1), and a mounting groove (5) is provided on the front surface of the second mounting plate (4); The adjusting mechanism is arranged on the bottom plate (1), and comprises a connecting plate (6), a hydraulic telescopic rod (7) and a plurality of first adjusting rotating rods (9). A U-shaped groove (8) is provided on the upper inner wall of the mounting groove (5), the connecting plate (6) is slidably mounted on the inner wall of the U-shaped groove (8), the hydraulic telescopic rod (7) is fixedly mounted on the upper surface of the second mounting plate (4), the telescopic end of the hydraulic telescopic rod (7) slides through the inside of the U-shaped groove (8), the hydraulic telescopic rod (7) is fixedly connected to the connecting plate (6), the plurality of first adjusting rotating rods (9) are all rotatably mounted on the upper surface of the second mounting plate (4), the lower ends of the plurality of first adjusting rotating rods (9) are all rotatably mounted on the lower surface of the connecting plate (6), the plurality of first adjusting rotating rods (9) are all threadedly connected to the connecting plate (6), the plurality of first adjusting rotating rods (9) are all slidably connected to the inside of the second mounting plate (4), and the lower ends of the plurality of first adjusting rotating rods (9) are all rotatably mounted with a U-shaped mounting plate (10).

2. The round steel straightening device according to claim 1, characterized in that: The adjustment mechanism further comprises a convex rod (11) and a limiting rod (12); the convex rod (11) is fixedly mounted on the upper surface of the U-shaped mounting plate (10); a convex groove (13) is provided on the lower surface of the first adjustment rotating rod (9); the convex rod (11) is rotatably mounted inside the convex groove (13); the limiting rod (12) is fixedly mounted on the front end of the upper surface of the U-shaped mounting plate (10); a circular groove (14) is provided on the lower surface of the connecting plate (6) at a position corresponding to the limiting rod (12); and the limiting rod (12) is slidably mounted inside the circular groove (14).

3. The round steel straightening device according to claim 1, characterized in that: A plurality of second correction wheels (15) are fixedly mounted on the rear inner wall of the mounting groove (5), and a plurality of U-shaped mounting plates (10) and the plurality of second correction wheels (15) are arranged in a staggered manner.

4. The round steel straightening device according to claim 1, characterized in that: The upper surface of the first mounting plate (2) is provided with two rectangular grooves (16), a rectangular plate (17) is slidably mounted inside the two rectangular grooves (16), a third correction wheel (18) is fixedly mounted on the upper surface of the two rectangular plates (17), and the three first correction wheels (3) and the two third correction wheels (18) are arranged in a staggered manner.

5. The round steel straightening device according to claim 4, characterized in that: A second adjusting rotating rod (19) is rotatably mounted on the front surface of the first mounting plate (2) at positions corresponding to the two rectangular grooves (16); rear ends of the two second adjusting rotating rods (19) are respectively rotatably inserted into the corresponding rectangular grooves (16); and the two rectangular plates (17) are respectively threadedly connected to the corresponding second adjusting rotating rods (19).

6. The round steel straightening device according to claim 1, characterized in that: Circular holes (20) are provided on the left and right inner walls of the installation groove (5).

7. The round steel straightening device according to claim 1, characterized in that: A fourth correction wheel (21) is fixedly mounted on the inner walls of the plurality of U-shaped mounting plates (10).

8. The round steel straightening device according to claim 1, characterized in that: A rectangular hole (23) is provided on the front surface of the second mounting plate (4), the rectangular hole (23) is communicated with the interior of the U-shaped groove (8), and a scale (22) is fixedly mounted on the front surface of the second mounting plate (4).

9. A method for using a round steel straightening device, characterized in that: S1: firstly install the round steel to be straightened onto the device, then rotate the two second adjusting rotating rods (19), the two second adjusting rotating rods (19) drive the two rectangular plates (17) to move inside the two rectangular grooves (16), so that the two third correction wheels (18) on the upper surface of the two rectangular plates (17) are adjusted, so that the two third correction wheels (18) and the three first correction wheels (3) move away from or close to each other, the spacing between the two third correction wheels (18) and the three first correction wheels (3) is adjusted, and the spacing between the plurality of fourth correction wheels (21) and the plurality of second correction wheels (15) is adjusted. A servo valve for controlling the hydraulic telescopic rod (7) is provided at the rear end of the upper surface of the bottom plate (1), and the hydraulic telescopic rod (7) is started for standby; S2: The hydraulic telescopic rod (7) drives the connecting plate (6) to move inside the U-shaped groove (8), thereby adjusting the U-shaped groove (8) and the multiple U-shaped mounting plates (10) on the lower surface of the connecting plate (6), thereby adjusting the spacing between the multiple fourth correction wheels (21) and the multiple second correction wheels (15) to be close to the distance required for fine adjustment, and observing the adjusted height through the scale (22) and the rectangular hole (23), and rotating the first adjustment rotating rod (9) after the adjustment is completed; S3: rotating the first adjusting rotating rod (9) corresponding to the U-shaped mounting plate (10) to be adjusted, so that the first adjusting rotating rod (9) can drive the U-shaped mounting plate (10) rotatably connected thereto and the fourth correction wheel (21) fixedly mounted on the U-shaped mounting plate (10) to perform fine adjustment on the height, and the fourth correction wheel (21) is adjusted to a suitable position for standby use; S4: After the adjustment is completed, the round steel that needs to be straightened can be straightened through the traction mechanism.

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