Strip steel centering device

Abstract

The utility model discloses a strip steel centering device. The strip steel centering device comprises a rack, the two side guide mechanisms define a strip steel running channel, each side guide mechanism comprises a moving seat and two side guide rollers, the side guide rollers are pivoted to the moving seat, and the left side guide roller and the right side guide roller are used for clamping the left side and the right side of strip steel; the synchronizing mechanism is used for synchronously linking the two sets of side guide mechanisms and comprises a gear and two sets of identical racks, the center line of the gear is parallel to the rolling center line, the inner ends of the two sets of racks are both meshed with the gear, and the outer ends of the two sets of racks are fixedly connected with the moving seat on the side where the two sets of racks are located; the output end of the hydraulic cylinder is connected with and drives the moving seat in one group of side guide mechanisms, and drives the moving seat on the other side to synchronously move through the synchronizing mechanism so as to adjust the opening degree between the guide rollers on the two sides; the displacement sensor is arranged on the hydraulic cylinder and used for detecting the opening degree value between the guide rollers on the two sides. The device can ensure that the strip steel is kept in a centering state in the rolling process.

Description

Technical Field

[0001] The utility model relates to the technical field of strip rolling equipment, and particularly relates to a strip centering device for rolling special use. Background Technique

[0002] In the metal processing industry, rolling is one of the important processes for producing metal sheets such as strips. During the rolling process, the strip needs to travel accurately along the rolling center line to ensure that the rolled sheet has a uniform thickness and good surface quality. However, in actual production, due to various factors that may affect the strip during transportation, such as tension changes, unevenness of the conveying roller table, etc., the center line of the strip deviates from the rolling center line, thus affecting the rolling effect.

[0003] In traditional rolling equipment, the centering adjustment of the strip usually relies on manual adjustment or simple mechanical devices, and these methods have many deficiencies. Manual adjustment is not only inefficient but also difficult to ensure the accuracy of adjustment; although simple mechanical devices can achieve automatic adjustment to a certain extent, due to their complex structure and limited adjustment range, it is difficult to meet the requirements of high-precision rolling. Content of the Utility Model

[0004] The purpose of the utility model is to provide a strip centering device, which ensures that the center line of the strip is parallel to the rolling center line by precisely controlling the position of the strip during the rolling process, thereby improving the rolling efficiency and product quality.

[0005] To achieve the above purpose, the solution of the utility model is: a strip centering device, including the following mechanisms:

[0006] A frame;

[0007] Two groups of side guiding mechanisms, symmetrically arranged on both sides of the frame. The two groups of side guiding mechanisms enclose a strip running channel. Each group of side guiding mechanisms includes a moving seat and two side guide rollers. The moving seat is movably arranged on the frame, and the side guide rollers are pivotally connected to the moving seat. The left and right two groups of side guide rollers are used to clamp the left and right sides of the strip;

[0008] A synchronization mechanism for synchronously linking the two groups of side guiding mechanisms, including a gear and two groups of racks. Among them, the center line of the gear is parallel to the rolling center line. The inner ends of the two groups of racks are both meshed with the gear, and the outer ends are fixedly connected to the moving seat on the corresponding side;

[0009] A hydraulic cylinder for driving the side guiding mechanism to move perpendicular to the rolling direction. The output end of the hydraulic cylinder is connected to and drives the moving seat in a group of side guiding mechanisms, and through the synchronization mechanism, drives the moving seat on the other side to move synchronously to adjust the opening between the two side guide rollers;

[0010] A displacement sensor is arranged on the hydraulic cylinder and is used to detect the opening value between the two guide rollers on both sides.

[0011] Furthermore, the two side guide rollers in each group of side guide mechanisms are respectively a vertical side guide roller and a horizontal side guide roller. The two vertical side guide rollers are arranged relatively parallel to each other; the two horizontal side guide rollers are arranged relatively parallel to each other.

[0012] Furthermore, the outer end of the rack is a threaded end. After the threaded end passes through the connection hole opened on the moving seat, it is locked and fixed by a screw.

[0013] Furthermore, a guide rod is arranged on the frame along the direction perpendicular to the rolling direction. The moving seats of the two groups of side guide mechanisms are slidably arranged on the guide rod and perform linear reciprocating motion along the guide rod to adjust the opening.

[0014] Furthermore, the number of the guide rods is two. The two guide rods are arranged parallel to each other up and down on the frame. The upper end of the moving seat is connected to the upper guide rod through a sliding member, and the lower end of the moving seat is connected to the lower guide rod through another sliding member.

[0015] Furthermore, the hydraulic cylinder is located outside the moving seat, and its output end faces the rolling center line and is connected to the moving seat.

[0016] Furthermore, the gear is rotatably arranged on a fixed seat. The fixed seat is integrally formed with the frame, or the fixed seat is fixed to the frame through a locking structure.

[0017] Furthermore, the range value of the opening is 650 - 1650 mm.

[0018] Furthermore, the material of the side guide roller is selected as 40Cr steel, and the wall thickness of the side guide roller is 19 mm.

[0019] Furthermore, the centering device further includes a control system, which is electrically connected to the displacement sensor and the hydraulic cylinder. After receiving the feedback signal, the control system controls the drive of the hydraulic cylinder.

[0020] After adopting the above scheme, the beneficial effects of the present utility model are as follows:

[0021] The strip centering device of the present utility model adopts advanced technologies such as side guide mechanisms, synchronous mechanisms, hydraulic cylinders and displacement sensors, ensuring the stable progress of the strip during the rolling process.

[0022] Among them, two sets of side guiding mechanisms symmetrically arranged on both sides of the rack enclose a strip running channel. The moving seat slides to adjust the size of the running channel. The left and right sets of side guide rollers are used to clamp the left and right sides of the strip. Through the gear-rack synchronization mechanism, the center line of this strip running channel is always kept aligned with the rolling center line. Then, it can ensure that the strip is always in the centered state during the rolling process, achieving precise control of the strip center line, avoiding rolling defects caused by position deviation, overcoming the deficiency of center adjustment in traditional rolling equipment, and improving the rolling efficiency and product quality. In addition, the opening value between the two side guide rollers is monitored and fed back in real time through a displacement sensor to meet the rolling requirements of strips with different widths and thicknesses.

[0023] Meanwhile, this device also has the advantages of simple structure, large adjustment range, convenient operation, etc., and can meet the requirements of high-precision rolling. Brief Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of a strip centering device according to an embodiment of the present invention.

[0025] Label Description:

[0026] 1. Rack; 11. Guide rod; 12. Sliding part; 13. Fixed seat; 2. Side guiding mechanism; 21. Moving seat; 22. Vertical side guide roller; 23. Horizontal side guide roller; 3. Synchronization mechanism; 31. Gear; 32. Rack; 4. Hydraulic cylinder; 5. Screw. Detailed Embodiment

[0027] The following will make a detailed description of the present invention in conjunction with the drawings and specific embodiments.

[0028] The present invention provides a strip centering device, which is mainly arranged at the feeding end of the first rack on the rolling production line, downstream of the strip pressing device, and is used to ensure that the strip remains in the centered state during the rolling process, but the application scenario is not limited to this. As Figure 1 shown, this centering device includes a rack 1, two sets of side guiding mechanisms 2, a synchronization mechanism 3, a hydraulic cylinder 4 and a displacement sensor.

[0029] The rack 1 is a welded structure, serving as the support structure of the whole device, having sufficient rigidity and stability to ensure stability during the rolling process. Two sets of side guiding mechanisms 2 are symmetrically arranged on both sides of the rack 1. The two sets of side guiding mechanisms 2 enclose a strip running channel. In this embodiment, each set of side guiding mechanism 2 includes a moving seat 21 and two side guide rollers. The moving seat 21 is movably arranged on the rack 1, and the side guide rollers are pivotally connected to the moving seat 21 and can rotate around their own axes to reduce the frictional resistance to the strip. The left and right sets of side guide rollers are used to clamp the left and right sides of the strip;

[0030] In each set of side guiding mechanisms 2, the two side guide rollers are respectively a vertical side guide roller 22 and a horizontal side guide roller 23. The two vertical side guide rollers 22 are arranged relatively parallel and clamp the left and right sides of the strip steel; the two horizontal side guide rollers 23 are arranged relatively parallel and clamp the left and right sides of the strip steel to ensure that the strip steel remains centered during the rolling process. In this embodiment, the material of the side guide rollers is selected as 40Cr steel, and the wall thickness of the side guide rollers is 19 mm.

[0031] The synchronization mechanism 3 is used to ensure the synchronous linkage of the two sets of side guiding mechanisms 2, and includes a gear 31 and two sets of identical racks 32. Among them, the center line of the gear 31 is parallel to the rolling center line. The inner ends of the two sets of racks 32 are both meshed with the gear 31. When the gear 31 rotates, the two sets of racks 32 can move synchronously. The outer end of the rack 32 is fixedly connected to the moving seat 21 on the corresponding side. Since the center line of the gear 31 is always parallel to the rolling center line, the distances from the two racks 32 to the left and right moving seats 21 are equal. This design ensures that when the gear 31 rotates, the two racks 32 can move synchronously and equidistantly, thereby driving the two moving seats 21 to move synchronously. Through this synchronization method, it can be ensured that the center line of the strip steel running channel formed by the two sets of side guide rollers on the left and right is always aligned with the rolling center line, so that the strip steel can always maintain a centered state during the rolling process, avoiding rolling defects caused by position deviation, and improving product quality and production efficiency.

[0032] In this embodiment, the outer end of the rack 32 is designed as a threaded end. After the threaded end passes through the connection hole opened on the moving seat 21, it is locked and fixed by a screw 5. This connection method is not only convenient for installation, but also firm and reliable, and can maintain a stable connection state under long-term and high-load working conditions. Of course, the connection method between the rack 32 and the moving seat 21 is not limited to this. According to the actual application requirements and conditions, other connection methods can also be used, such as welding, riveting, snap connection, etc. These connection methods have their own advantages and disadvantages and can be selected and adjusted according to specific situations. No matter which connection method is adopted, it is necessary to ensure that the connection between the rack 32 and the moving seat 21 is firm and reliable to ensure the normal operation of the synchronization mechanism 3.

[0033] The installation method of the gear 31 is that it is rotatably arranged on a fixed seat 13. The fixed seat 13 is integrated with the frame 1, or the fixed seat 13 is fixed to the frame 1 through a locking structure.

[0034] The hydraulic cylinder 4 is used to drive the side guiding mechanism 2 to move perpendicular to the rolling direction. The cylinder block of the hydraulic cylinder 4 is fixed on the frame 1 and is located outside the moving seat 21. The output end (piston rod) of the hydraulic cylinder 4 faces the rolling center and is connected to the moving seat 21 in a set of side guiding mechanisms 2. When the hydraulic cylinder 4 works, the piston rod will reciprocate, driving the connected moving seat 21 to move. Then, through the above-mentioned synchronization mechanism 3, the moving seat 21 on the other side is driven to move synchronously, so as to adjust the opening between the two side guide rolls to match the width of the strip to be rolled. The adjustment of the opening can be adapted to strip steel with different width specifications.

[0035] A displacement sensor (not shown in the figure): It is installed on the hydraulic cylinder 4 or the moving seat 21 and is used to monitor and feedback the opening value between the two side guide rolls in real time. Through this sensor, the opening value between the two side guide rolls can be accurately controlled to meet the rolling requirements of strip steel with different widths and thicknesses.

[0036] The control system (not shown in the figure) combines the feedback signal of the displacement sensor and can accurately control the drive of the hydraulic cylinder 4, so as to achieve accurate adjustment of the opening between the two side guide rolls. In addition, the control system can also set and adjust different centering parameters and modes according to the needs of the rolling process.

[0037] As a further improvement of the structure, guide rods 11 are arranged on the frame 1 along the direction perpendicular to the rolling direction. The moving seats 21 of the two sets of side guiding mechanisms 2 are slidably arranged on the guide rods 11 and make linear reciprocating motions along the guide rods 11. In this embodiment, the number of guide rods 11 is two, and the two guide rods 11 are arranged parallel to each other up and down on the frame 1. The upper end of the moving seat 21 is connected to the upper guide rod 11 through a sliding member 12, and the lower end of the moving seat 21 is connected to the lower guide rod 11 through another sliding member 12 to increase the stability of the device structure.

[0038] To further illustrate each embodiment, the present utility model provides drawings. These drawings are a part of the disclosure of the present utility model, which are mainly used to illustrate the embodiments and can be combined with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0039] At the same time, the front, rear, left, right and other orientations involved in this embodiment are only for reference of an orientation and do not represent the orientation in actual use. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] The above are only the preferred embodiments of the present utility model, and do not limit the design of this case. All equivalent changes made according to the key design of this case fall within the protection scope of this case.

Claims

1. A strip centering device, characterized in that: It includes the following mechanisms: Frame; Two groups of side guiding mechanisms, symmetrically arranged on both sides of the frame. The two groups of side guiding mechanisms enclose a strip running channel. Each group of side guiding mechanisms includes a moving seat and two side guide rollers. The moving seat is movably arranged on the frame, and the side guide rollers are pivotally connected to the moving seat. The left and right side guide rollers on both sides are used to clamp the left and right sides of the strip; Synchronization mechanism, used to synchronously link the two groups of side guiding mechanisms, including a gear and two groups of racks. Among them, the center line of the gear is parallel to the rolling center line. The inner ends of the two groups of racks are both meshed with the gear, and the outer ends are fixedly connected to the moving seat on the corresponding side; Hydraulic cylinder, used to drive the side guiding mechanism to move perpendicular to the rolling direction. The output end of the hydraulic cylinder is connected to and drives the moving seat in one group of side guiding mechanisms, and drives the moving seat on the other side to move synchronously through the synchronization mechanism to adjust the opening between the two side guide rollers; Displacement sensor, arranged on the hydraulic cylinder, used to detect the opening value between the two side guide rollers.

2. The strip centering device according to claim 1, characterized in that: The two side guide rollers in each group of side guiding mechanisms are respectively a vertical side guide roller and a horizontal side guide roller. The two vertical side guide rollers are arranged relatively parallel; the two horizontal side guide rollers are arranged relatively parallel.

3. The strip centering device according to claim 1, characterized in that: The outer end of the rack is a threaded end. After the threaded end passes through the connection hole opened on the moving seat, it is locked and fixed by a screw.

4. The strip centering device according to claim 1, characterized in that: The frame is provided with guide rods arranged perpendicular to the rolling direction. The moving seats of the two groups of side guiding mechanisms are slidably arranged on the guide rods and perform linear reciprocating motion along the guide rods to adjust the opening.

5. The strip centering device according to claim 4, characterized in that: The number of the guide rods is two. The two guide rods are arranged parallel to each other up and down on the frame. The upper end of the moving seat is connected to the upper guide rod through a sliding member, and the lower end of the moving seat is connected to the lower guide rod through another sliding member.

6. The strip centering device according to claim 1, wherein: The hydraulic cylinder is located outside the moving seat, and its output end faces the rolling center line and is connected to the moving seat.

7. The strip centering device according to claim 1, characterized in that: The gear is rotatably arranged on a fixed seat. The fixed seat is integrated with the frame, or the fixed seat is fixed to the frame through a locking structure.

8. The strip centering device according to claim 1, characterized in that: The range value of the opening is 650 - 1650mm.

9. The centering device for strip steel according to claim 1, characterized in that: The material of the side guide roller is selected as 40Cr steel, and the wall thickness of the side guide roller is 19mm.

10. The strip centering device according to claim 1, characterized in that: The centering device further includes a control system, which is electrically connected to the displacement sensor and the hydraulic cylinder. After receiving the feedback signal, the control system controls the drive of the hydraulic cylinder.

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