Device for rolling a steel strip with anti-derailment

Abstract

The utility model discloses a kind of anti-deviation steel strip rolling device, it is related to steel strip rolling technical field.The utility model includes bottom box, the bottom box top side is fixedly connected with rolling frame, the rolling frame inside is fixedly connected with bottom roll, the bottom roll rear side is fixedly connected with drive box, the rolling frame inside is threadedly connected with adjusting lever, the adjusting lever bottom is movably connected with top roll by bearing.The utility model is designed by anti-deviation roller of conical body shape, when steel strip deviates, its inclined plane is contacted with steel strip edge, because the linear velocity gradient of roll surface changes along axial direction and forms asymmetric lateral friction force, restoring force pointing to rolling center is generated, drive steel strip automatic return normality.Anti-deviation roller is driven by second driving motor, keeps same direction rotation, avoids shear stress caused by reverse rotation, reduces steel strip edge scratch, indentation and edge curl risk, significantly improves rolling precision and product quality.

Description

Technical Field

[0001] This utility model belongs to the field of steel strip rolling technology, and in particular relates to a steel strip rolling device for preventing deviation. Background Technology

[0002] A strip rolling mill is an industrial device used for the continuous rolling of metal strips. Its core function is to apply pressure to the strip through multiple sets of rolls to control its thickness, shape, and surface quality. Traditional rolling mills typically consist of a frame, roll sets, a drive system, and auxiliary guiding mechanisms. Among these, the anti-deviation design is a key technology to ensure the stable operation of the strip along the rolling centerline, directly affecting product accuracy and yield.

[0003] Authorized patent number CN222343788U discloses an anti-deviation steel strip rolling device, which uses symmetrical guide rollers on both sides of the rolled steel strip to limit lateral deviation through physical contact between the rollers and the edge of the steel strip. However, this solution has the following significant drawbacks: the guide rollers are in direct contact with the edge of the steel strip, resulting in a small contact area and concentrated pressure, which easily leads to scratches, indentations, or even curling on the edge of the steel strip, especially for thin strips or high-strength steel. Therefore, we provide an anti-deviation steel strip rolling device to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide an anti-deviation steel strip rolling device. By cooperating with the drive component and the anti-deviation component, it solves the problem that existing steel strip rolling devices are prone to causing scratches, indentations, or even curling on the edges of the steel strip.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0006] This utility model relates to an anti-deviation steel strip rolling device, comprising a base box, rolling frames fixedly connected to both sides of the top of the base box, a bottom roller fixedly connected inside the rolling frame, a drive box fixedly connected to the rear side of the bottom roller, an adjusting rod threadedly connected inside the rolling frame, a top roller movably connected to the bottom of the adjusting rod via a bearing, a drive assembly disposed inside the base box, the drive assembly comprising a screw movably connected to the base box via a bearing, a threaded sleeve threaded to the surface of the screw, a movable plate fixedly connected to one side of the threaded sleeve, and an adjusting frame fixedly connected to the top of the movable plate, an anti-deviation assembly disposed on one side of the adjusting frame, the anti-deviation assembly comprising an adjusting plate disposed on the top of the adjusting frame, a mounting plate fixedly connected to one side of the adjusting plate, and an anti-deviation roller movably connected to the inside of the mounting plate via a bearing.

[0007] The present invention is further configured such that there are two of each of the rolling frame, bottom roll, top roll and anti-deviation roll, and the anti-deviation roll is located between the two rolling frames.

[0008] The present invention is further configured such that a first drive motor is fixedly connected inside the base box, the first drive motor is a dual-axis motor, the end of the screw away from the base box is fixedly connected to the output shaft of the first drive motor, and there are two screws, with the threads on the surfaces of the two screws having opposite directions.

[0009] The present invention is further configured such that a sliding rod is fixedly connected inside the base box, a slider is slidably connected to the surface of the sliding rod, the side of the moving plate away from the screw sleeve is fixedly connected to the slider, the top of the moving plate is fixedly connected to the bottom of the adjusting frame through a connecting rod, and a moving through groove adapted to the connecting rod is provided on the top of the base box.

[0010] The present invention is further configured such that a hydraulic cylinder is fixedly connected inside the adjustment frame, and the output end of the hydraulic cylinder extends to the top of the adjustment frame and is fixedly connected to the bottom of the adjustment plate.

[0011] The present invention is further configured such that the anti-deviation roller is cone-shaped and the rotation direction of the anti-deviation roller is always consistent.

[0012] The present invention is further configured such that a second drive motor is fixedly connected to one side of the mounting plate, and the output shaft of the second drive motor is fixedly connected to the anti-deviation roller.

[0013] The present invention has the following beneficial effects.

[0014] 1. This utility model utilizes a conical anti-deviation roller design. When the steel strip deviates, its inclined surface contacts the edge of the steel strip. Due to the axial variation of the roller surface linear velocity gradient, an asymmetric lateral friction force is generated, producing a restoring force pointing towards the rolling center, driving the steel strip to automatically return to the correct position. The anti-deviation roller is driven by a second drive motor, maintaining rotation in the same direction to avoid shear stress caused by reverse rotation, reducing the risk of scratches, indentations, and edge curling on the steel strip edge, and significantly improving rolling accuracy and product quality.

[0015] 2. This utility model employs a collaborative design of a drive assembly and an anti-deviation assembly. A first drive motor drives screws with opposite thread directions to synchronously adjust the spacing between the two anti-deviation rollers, meeting the rolling requirements of steel strips of different widths. A hydraulic cylinder adjusts the height of the anti-deviation rollers, ensuring they are level with the rolling rolls, further optimizing the anti-deviation effect. The overall structure is simple, easy to adjust, widely applicable, and effectively improves production efficiency.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a perspective view of a steel strip rolling device designed to prevent deviation.

[0019] Figure 2 This is a top-view sectional view of the bottom box in an anti-deviation steel strip rolling device.

[0020] Figure 3 This is a perspective view of an anti-deviation component in an anti-deviation steel strip rolling device.

[0021] Figure 4 This is a perspective view of the adjusting frame and hydraulic cylinder in an anti-deviation steel strip rolling device.

[0022] Figure 5 This is a split diagram of the anti-deviation roller and the second drive motor in an anti-deviation steel strip rolling device.

[0023] In the attached diagram: 1. Base box; 2. Rolling frame; 3. Bottom roll; 4. Adjusting rod; 5. Top roll; 6. Screw; 7. Screw sleeve; 8. Moving plate; 9. Adjusting frame; 10. Adjusting plate; 11. Mounting plate; 12. Anti-deviation roll; 13. First drive motor; 14. Slide rod; 15. Slider; 16. Hydraulic cylinder; 17. Second drive motor. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figures 1-5This utility model relates to an anti-deviation steel strip rolling device, comprising a base box 1, rolling frames 2 fixedly connected to both sides of the top of the base box 1, a bottom roller 3 fixedly connected inside the rolling frame 2, a drive box fixedly connected to the rear side of the bottom roller 3, an adjusting rod 4 threadedly connected inside the rolling frame 2, a top roller 5 movably connected to the bottom of the adjusting rod 4 via a bearing, and a drive assembly inside the base box 1, comprising a screw 6 movably connected to the inside of the base box 1 via a bearing, a threaded sleeve 7 threadedly connected to the surface of the screw 6, a movable plate 8 fixedly connected to one side of the threaded sleeve 7, and an adjusting frame 9 fixedly connected to the top of the movable plate 8. Through the drive assembly, a first drive motor 13 drives two screws 6 with opposite thread directions, causing the two threaded sleeves 7 to move towards each other, thereby controlling the horizontal displacement of the movable plate 8 and the adjusting frame 9, and achieving synchronization of the spacing between the two anti-deviation rollers 12. The adjustment mechanism adapts to the rolling requirements of steel strips of different widths. An anti-deviation component is provided on one side of the adjustment frame 9. The anti-deviation component includes an adjustment plate 10 set on the top of the adjustment frame 9, a mounting plate 11 fixedly connected to one side of the adjustment plate 10, and an anti-deviation roller 12 movably connected to the inside of the mounting plate 11 through a bearing. Due to the setting of the anti-deviation component, the anti-deviation roller 12 is conical. When the steel strip deviates, its inclined surface contacts the edge of the steel strip. Due to the axial change of the radius of the roller surface linear velocity gradient, an asymmetric lateral friction force is formed, generating a restoring force pointing towards the rolling center, driving the steel strip to automatically return to the correct position. The anti-deviation roller 12 is driven by a second drive motor 17 to maintain rotation in the same direction, avoiding shear stress caused by reverse rotation and reducing edge damage. Compared with the rigid limit of traditional guide rollers, the contact pressure distribution between the conical roller and the edge of the steel strip is more uniform, significantly reducing the risk of scratches and edge curling.

[0027] Example 2

[0028] Please see Figures 1-5Based on Example 1, the number of rolling frames 2, bottom rolls 3, top rolls 5, and anti-deviation rolls 12 are all two. The anti-deviation rolls 12 are located between the two rolling frames 2. The two anti-deviation rolls 12 are used to prevent the steel strip from deviating during the rolling process. A first drive motor 13 is fixedly connected inside the bottom box 1. The first drive motor 13 is a dual-axis motor. The end of the screw 6 away from the bottom box 1 is fixedly connected to the output shaft of the first drive motor 13. There are two screws 6, and the thread directions of the two screws 6 are opposite. The first drive motor 13 is used to drive the screws 6 to rotate. By setting two screws 6 with opposite thread directions, the screw sleeves 7 on the surface are driven to move towards each other. A sliding rod 14 is fixedly connected inside the bottom box 1. A slider 15 is slidably connected to the surface of the sliding rod 14. The side of the moving plate 8 away from the screw sleeve 7 is fixedly connected to the slider 15. The top of the moving plate 8 is fixedly connected to the bottom of the adjusting frame 9 through a connecting rod. The top of the bottom box 1 has a moving through groove adapted to the connecting rod. The sliding rod 14 and the slider are connected through the sliding through groove. The 15 is designed to support the smooth movement of the moving plate 8. A hydraulic cylinder 16 is fixedly connected inside the adjusting frame 9. The output end of the hydraulic cylinder 16 extends to the top of the adjusting frame 9 and is fixedly connected to the bottom of the adjusting plate 10. The hydraulic cylinder 16 is used to push the adjusting plate 10 up and down. The anti-deviation roller 12 is conical in shape and always rotates in the same direction. With the conical anti-deviation roller 12, if the steel strip deviates from the center during the rolling process, the inclined surface of the conical anti-deviation roller 12 contacts the edge of the steel strip, forming an asymmetrical lateral friction force. Since the radius of the anti-deviation roller 12 gradually changes along the axial direction, the difference between the linear velocity of the roller surface at the side contact position and the movement speed of the steel strip is greater, generating a restoring force pointing towards the center. The lateral restoring force will drive the steel strip back to the center. A second drive motor 17 is fixedly connected to one side of the mounting plate 11. The output shaft of the second drive motor 17 is fixedly connected to the anti-deviation roller 12. The second drive motor 17 is used to drive the anti-deviation roller 12 to rotate.

[0029] The working principle of this utility model is as follows: First, adjust the distance between the two anti-deviation rollers 12 according to the required width of the rolled steel strip. The first drive motor 13 drives the screw 6 to rotate, the screw 6 drives the screw sleeve 7 to move, the screw sleeve 7 drives the moving plate 8 to move towards each other, the moving plate 8 drives the adjusting frame 9 to move towards each other, and the adjusting frame 9 drives the anti-deviation rollers 12 to move towards each other. After adjusting to a suitable distance, stop the first drive motor 13.

[0030] Adjusting rod 4 adjusts the distance between top roll 5 and bottom roll 3. Then, hydraulic cylinder 16 drives adjusting plate 10 to move up and down. Adjusting plate 10 drives mounting plate 11 to move up and down. Mounting plate 11 drives anti-deviation roll 12 to move up and down. Adjusting the height of anti-deviation roll 12 so that anti-deviation roll 12 and bottom roll 3 are at the same level. Bottom roll 3 and top roll 5 cooperate to roll the steel strip. The drive mechanism in the drive box drives bottom roll 3 to rotate. Bottom roll 3 pushes the steel strip to one side. Bottom roll 3 and top roll 5 cooperate to squeeze the steel strip. During the rolling process, second drive motor 17 drives anti-deviation roll 12 to rotate in the direction of steel strip movement. The steel strip will move on the surface of anti-deviation roll 12 during the rolling process.

[0031] The anti-deviation roller 12 is conical. When the steel strip deviates, its inclined surface contacts the edge of the steel strip. Because the radius of the cone decreases along the axial direction, the linear velocity of the contact point changes with the position, generating a frictional difference pointing towards the center. Therefore, a restoring force pointing towards the rolling center is generated, driving the steel strip to automatically return to the center, thereby achieving the purpose of automatic anti-deviation during the rolling process and reducing edge damage during the automatic correction process.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A strip rolling device for preventing deviation, comprising a base box (1), characterized in that: The bottom box (1) is fixedly connected to both sides of the top of the rolling frame (2), the bottom roller (3) is fixedly connected inside the rolling frame (2), the drive box is fixedly connected to the rear side of the bottom roller (3), the adjusting rod (4) is threaded inside the rolling frame (2), and the top roller (5) is movably connected to the bottom of the adjusting rod (4) through a bearing. The base box (1) is equipped with a drive assembly, which includes a screw (6) movably connected to the base box (1) via a bearing, a screw sleeve (7) threadedly connected to the surface of the screw (6), a movable plate (8) fixedly connected to one side of the screw sleeve (7), and an adjustment frame (9) fixedly connected to the top of the movable plate (8). An anti-deviation component is provided on one side of the adjustment frame (9). The anti-deviation component includes an adjustment plate (10) provided on the top of the adjustment frame (9), a mounting plate (11) fixedly connected to one side of the adjustment plate (10), and an anti-deviation roller (12) movably connected to the inside of the mounting plate (11) via a bearing.

2. The anti-deviation steel strip rolling device according to claim 1, characterized in that: The number of the rolling frame (2), bottom roll (3), top roll (5) and anti-deviation roll (12) are all two, and the anti-deviation roll (12) is located between the two rolling frames (2).

3. The anti-deviation steel strip rolling device according to claim 1, characterized in that: The bottom box (1) is fixedly connected to a first drive motor (13), which is a dual-axis motor. The end of the screw (6) away from the bottom box (1) is fixedly connected to the output shaft of the first drive motor (13). There are two screws (6), and the threads on the surfaces of the two screws (6) are opposite.

4. The anti-deviation steel strip rolling device according to claim 1, characterized in that: The bottom box (1) is fixedly connected to a slide rod (14), and a slider (15) is slidably connected to the surface of the slide rod (14). The movable plate (8) is fixedly connected to the slider (15) on the side away from the screw sleeve (7). The top of the movable plate (8) is fixedly connected to the bottom of the adjustment frame (9) through a connecting rod. The top of the bottom box (1) is provided with a movable through groove that matches the connecting rod.

5. The anti-deviation steel strip rolling device according to claim 1, characterized in that: A hydraulic cylinder (16) is fixedly connected inside the adjustment frame (9). The output end of the hydraulic cylinder (16) extends to the top of the adjustment frame (9) and is fixedly connected to the bottom of the adjustment plate (10).

6. The anti-deviation steel strip rolling device according to claim 1, characterized in that: The anti-deviation roller (12) is cone-shaped, and the rotation direction of the anti-deviation roller (12) remains consistent.

7. The anti-deviation steel strip rolling device according to claim 1, characterized in that: A second drive motor (17) is fixedly connected to one side of the mounting plate (11), and the output shaft of the second drive motor (17) is fixedly connected to the anti-deviation roller (12).

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