A device for straightening steel bends

Abstract

This utility model relates to a device for straightening the bends of steel profiles, belonging to the technical field of hot-rolled steel profiles in the metallurgical industry. The technical solution includes an adjustable guide groove mechanism and a straightening mechanism arranged front and rear. Two guide plates form a V-shaped guide groove with an opening facing the exit of the finishing mill. The steel profiles exiting the finishing mill pass through the V-shaped guide groove and enter the subsequent straightening mechanism. The two straightening rollers in each group of the straightening mechanism correspond and match with two straightening rollers on the other side of the roller table. The steel profiles exiting the adjustable guide groove mechanism enter the straightening mechanism, and the bends of the steel profiles are straightened after passing through the straightening rollers on both sides of the roller table. The beneficial effects of this utility model are: it can effectively straighten the bends of the finished steel profiles after exiting the finishing mill, avoiding equipment downtime caused by steel profile bends during production and improving production line efficiency.

Description

Technical Field

[0001] This utility model relates to a device for straightening steel section bends, belonging to the technical field of hot-rolled steel section technology in the metallurgical industry. Background Technology

[0002] Currently, the centering device after finishing mill rolling in a steel section mill consists of a swing arm base, swing arm assembly, centering hydraulic cylinder, guide wheel assembly, guide assembly, push plate assembly, and hydraulic piping. It is used to guide the finished steel sections exiting the finishing mill onto the post-finishing mill transport roller conveyor. Existing centering devices only have a guiding function and lack straightening capabilities. However, during the rolling process, temperature and adjustment differences can cause the steel section head to bend, forming a bend. When this bend enters the cooling bed skirt input roller conveyor, its trajectory is easily deviated, colliding with straightening plates and vertical rollers. In severe cases, the bend can even cause it to run off the post-finishing mill transport roller conveyor or the cooling bed skirt input roller conveyor. According to production reports, a steel plant experienced 318 minutes of downtime due to steel section bends in 2024, severely impacting the production efficiency of medium-sized production lines and posing significant safety hazards. Utility Model Content

[0003] The purpose of this invention is to provide a device for straightening steel section bends, which can effectively straighten the bends of finished steel section after finishing mill, avoid equipment downtime caused by steel section bends during production, improve production line efficiency, and solve the problems existing in the background technology.

[0004] The technical solution of this utility model is: A device for straightening steel section elbows is installed on the bottom plate of the roller conveyor at the exit of a finishing mill. It includes an adjustable guide groove mechanism and a straightening mechanism arranged front and rear. The adjustable guide groove mechanism includes a guide plate, a pin, an adjusting plate one, and an adjusting plate two. One end of the guide plate is hinged to the bottom plate of the roller conveyor near the exit of the finishing mill via a vertically arranged pin. The other end of the guide plate can swing along the pin on the roller conveyor within the bottom plate. Adjusting plate one and adjusting plate two are fixed to the guide plate and the bottom plate of the roller conveyor, respectively. Both adjusting plate one and adjusting plate two have multiple adjusting holes, through which positioning pins pass to securely fix adjusting plate one and adjusting plate two in place. There are two of each of the guide plate, pin, adjusting plate one, and adjusting plate two, symmetrically arranged on both sides of the exit of the finishing mill, with the two guide plates forming an opening facing... The steel profile exiting the finishing mill passes through a V-shaped guide groove and enters the subsequent straightening mechanism. The straightening mechanism includes an adjusting screw, an adjusting nut, a screw support, a straightening housing, and straightening rollers. The front end of the adjusting screw passes through the straightening housing and is connected via the adjusting nut. The adjusting nut and the straightening housing are integral. Straightening rollers are positioned in front of the straightening housing, close to the roller table on the bottom plate. The rear end of the adjusting screw is mounted on the screw support, which is fixed to the bottom plate. There are four adjusting screws and straightening rollers in total, arranged in groups of two, with one group on each side of the roller table. The two straightening rollers in each group correspond to the two straightening rollers on the other side of the roller table. The steel profile exiting the adjustable guide groove enters the straightening mechanism, and the bends in the steel profile are straightened by the straightening rollers on both sides of the roller table.

[0005] Furthermore, a straightening box is provided on each side of the roller conveyor, and two adjusting screws on the same side are matched with their respective adjusting nuts and inserted into the same straightening box. Two straightening vertical rollers are provided in front of the straightening box.

[0006] Furthermore, the second adjusting nut is welded to the straightening box, and the second adjusting nut and the straightening box are an integral part. By rotating the adjusting screw, the straightening box and the straightening rollers move back and forth together, adjusting the distance between the straightening rollers on both sides of the roller table.

[0007] Furthermore, the adjusting screw and the screw support are positioned by an adjusting nut, which is welded to the screw support and is used to cooperate with the adjusting screw to drive the straightening box to move back and forth.

[0008] Furthermore, the first adjustment plate and the second adjustment plate are respectively welded to the guide plate and the bottom plate of the roller conveyor.

[0009] Furthermore, the multiple adjustment holes on the first and second adjustment plates are circular through holes. After the guide plate is adjusted to the set position, when the circular through holes on the first and second adjustment plates coincide, they are positioned by the positioning pin. The opening degree of the figure-eight guide groove formed by the two guide plates can be adjusted by adjusting the position of the first and second adjustment plates.

[0010] Furthermore, the straightening vertical roller is bolted to the straightening box.

[0011] The beneficial effects of this utility model are: it can effectively straighten the bends of the finished steel sections after the finishing mill, avoid equipment downtime caused by the bends of the steel sections during the production process, and improve the production line efficiency. Attached Figure Description

[0012] Figure 1 This is a top view of the present invention (the guide plate and the straightening box are in different positions); Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram showing the installation position of this utility model on the production line; In the diagram: 1. Guide plate; 2. Pin shaft; 3. Adjusting plate one; 4. Adjusting plate two; 5. Adjusting screw; 6. Adjusting nut one; 7. Screw support; 8. Straightening box; 9. Straightening vertical roller; 10. Roller table bottom plate; 11. Finishing mill; 12. Roller table; 13. Positioning pin; 14. Adjusting nut two; 15. Section steel. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and examples.

[0014] See attached document Figure 1A device for straightening steel section elbows is installed on the roller table base plate 10 at the exit of a finishing mill 11. It includes an adjustable guide groove mechanism and a straightening mechanism arranged front and rear. The adjustable guide groove mechanism includes a guide plate 1, a pin 2, an adjusting plate 3, and an adjusting plate 4. One end of the guide plate 1 is hinged to the roller table base plate 10 near the exit of the finishing mill 11 via a vertically arranged pin 2. The other end of the guide plate 1 can swing along the pin 2 on the roller table 12 within the roller table base plate 10. The adjusting plate 3 and the adjusting plate 4 are respectively fixed to the guide plate 1 and the roller table base plate 10. Both the adjusting plate 3 and the adjusting plate 4 have multiple adjusting holes, through which positioning pins 13 pass to securely fix the adjusting plate 3 and the adjusting plate 4. Each guide plate 1, pin 2, adjusting plate 3, and adjusting plate 4 is in pairs, symmetrically arranged on both sides of the exit of the finishing mill 11, with the two guide plates 1 forming an opening. The steel sections exiting the finishing mill 11 pass through the V-shaped guide groove and enter the straightening mechanism. The straightening mechanism includes an adjusting screw 5, an adjusting nut 2 14, a screw support 7, a straightening box 8, and straightening vertical rollers 9. The front end of the adjusting screw 5 passes through the straightening box 8 and is matched and connected by the adjusting nut 2 14. The adjusting nut 2 14 and the straightening box 8 are an integral unit. The straightening vertical rollers 9 are arranged in front of the straightening box 8 and are close to the roller table 12 inside the roller table bottom plate 10. The rear end of the adjusting screw 5 is set on the screw support 7, which is fixed to the roller table bottom plate 10. There are four adjusting screws 5 and straightening vertical rollers 9, arranged in groups of two. One group is arranged on each side of the roller table 12, and the two straightening vertical rollers 9 in each group correspond to and match the two straightening vertical rollers 9 on the other side of the roller table. The steel section 15 that comes out of the adjustable guide trough mechanism enters the straightening mechanism, and the bend of the steel section 15 is straightened after passing through the straightening vertical rollers on both sides of the roller table.

[0015] A straightening box 8 is provided on each side of the roller conveyor 12. Two adjusting screws 5 on the same side are matched with their respective adjusting nuts 14 and inserted into the same straightening box 8. Two straightening vertical rollers 9 are provided in front of the straightening box 8.

[0016] The second adjusting nut 14 is welded to the straightening box 8. The second adjusting nut 14 and the straightening box 8 are an integral part. By rotating the adjusting screw 5, the straightening box 8 and the straightening vertical roller 9 are moved back and forth together to adjust the distance between the straightening vertical rollers 9 on both sides of the roller table 12. In this embodiment, the roller surface distance adjustment range of the straightening vertical rollers 9 on both sides is between 0mm and 900mm.

[0017] The adjusting screw 5 and the screw support 7 are positioned by adjusting nut 6, which is welded to the screw support 7 and is used to cooperate with the adjusting screw to drive the straightening box to move back and forth.

[0018] In this embodiment, the first adjustment plate 3 and the second adjustment plate 4 are respectively welded to the guide plate 1 and the roller conveyor bottom plate 10.

[0019] The multiple adjustment holes on the first adjustment plate 3 and the second adjustment plate 4 are circular through holes. After the guide plate 1 is adjusted to the set position, when the circular through holes on the first adjustment plate 3 and the second adjustment plate 4 coincide, they are positioned by the positioning pin 13. The opening degree of the V-shaped guide groove formed by the two guide plates can be adjusted by adjusting the position of the first adjustment plate 3 and the second adjustment plate 4.

[0020] In this embodiment, the two guide plates form a figure-eight shaped guide groove, and the opening of the two guide plates is adjustable within the range of 250mm-900mm. The opening is the minimum width of the outlet of the figure-eight shaped guide groove formed by the two guide plates.

[0021] In this embodiment, the straightening vertical roller 9 is bolted to the straightening box 8.

[0022] See attached document Figure 2 The adjustable guide groove mechanism and the straightening mechanism arranged at the front and rear are installed on the roller bottom plate 10 of the roller table 12 after the exit of the finishing mill 11. After the section steel 15 exits the finishing mill 11, it is fed into the straightening mechanism by the adjustable guide groove mechanism. The bend of the section steel 15 is straightened after passing through the straightening vertical roller of the straightening box.

[0023] This invention can effectively straighten steel bends during the production process, avoiding equipment downtime accidents caused by impacts from steel bends.

Claims

1. A device for straightening steel section elbows, characterized in that: Installed on the roller table base plate (10) at the exit of the finishing mill (11), it includes an adjustable guide groove mechanism and a straightening mechanism arranged front and rear. The adjustable guide groove mechanism includes a guide plate (1), a pin (2), an adjusting plate one (3), and an adjusting plate two (4). One end of the guide plate (1) is hinged to the roller table base plate (10) near the exit of the finishing mill (11) by a vertically arranged pin (2). The other end of the guide plate (1) can be mounted on the roller table within the roller table base plate (10) along the pin (2). (12) Swings on the upper part, and adjusting plate one (3) and adjusting plate two (4) are fixed on the guide plate (1) and the roller table bottom plate (10) respectively. Adjusting plate one (3) and adjusting plate two (4) are provided with multiple adjusting holes. The positioning pin (13) passes through the adjusting holes to fix adjusting plate one (3) and adjusting plate two (4) in a tight position. The guide plate (1), pin (2), adjusting plate one (3) and adjusting plate two (4) are all two, symmetrically arranged on both sides of the exit of the finishing mill (11). Each guide plate (1) forms a figure-eight shaped guide groove with an opening facing the outlet of the finishing mill (11); the straightening mechanism includes an adjusting screw (5), an adjusting nut two (14), a screw support (7), a straightening box (8), and a straightening vertical roller (9). The front end of the adjusting screw (5) passes through the straightening box (8) and is matched and connected by the adjusting nut two (14). The adjusting nut two (14) and the straightening box (8) are an integral unit. The front of the straightening box (8) is provided with The straightening vertical roller (9) is close to the roller table (12) inside the roller table bottom plate (10). The rear end of the adjusting screw (5) is set on the screw support (7), which is fixed on the roller table bottom plate (10). There are four adjusting screws (5) and straightening vertical rollers (9), two in a group, and one group is arranged on each side of the roller table (12). The two straightening vertical rollers (9) in each group correspond to and match the two straightening vertical rollers (9) on the other side of the roller table.

2. The device for straightening steel bends according to claim 1, characterized in that: A straightening box (8) is set on each side of the roller conveyor (12). Two adjusting screws (5) on the same side are matched with their respective adjusting nuts (14) and inserted into the same straightening box (8). Two straightening vertical rollers (9) are set in front of the straightening box (8).

3. A device for straightening steel section elbows according to claim 1 or 2, characterized in that: The second adjusting nut (14) is welded to the straightening box (8). The second adjusting nut (14) and the straightening box (8) are a whole. By rotating the adjusting screw (5), the straightening box (8) and the straightening roller (9) are moved back and forth together to adjust the distance between the straightening rollers (9) on both sides of the roller table (12).

4. The device for straightening steel bends according to claim 1, characterized in that: The adjusting screw (5) and the screw support (7) are positioned by adjusting nut one (6), which is welded to the screw support (7).

5. The device for straightening steel bends according to claim 1, characterized in that: The first adjustment plate (3) and the second adjustment plate (4) are respectively welded to the guide plate (1) and the bottom plate of the roller conveyor (10).

6. The device for straightening steel bends according to claim 1, characterized in that: The multiple adjustment holes on the first adjustment plate (3) and the second adjustment plate (4) are circular through holes. After the guide plate (1) is adjusted to the set position, when the circular through holes on the first adjustment plate (3) and the second adjustment plate (4) overlap, they are positioned by the positioning pin (13). The opening degree of the V-shaped guide groove formed by the two guide plates can be adjusted by adjusting the position of the first adjustment plate (3) and the second adjustment plate (4) to cooperate with each other.

7. The device for straightening steel bends according to claim 2, characterized in that: The straightening roller (9) is bolted to the straightening box (8).

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