Turnover device for annealing process of large and heavy bulk coils with ultra-large coils

Abstract

The utility model relates to the technical field of steel coil turnover, in particular to a turnover device for an annealing process of a heavy bulk coil of an oversized coil, which comprises a main body support plate, a plurality of universal moving wheels are arranged at the bottom end of the main body support plate, and the main body support plate is supported on the ground through the universal moving wheels; the hoisting mechanism is horizontally and slidably arranged on the main body supporting plate and used for hoisting and moving the steel coil, and a driving assembly is arranged on the main body supporting plate; the temporary storage mechanism is arranged on the main body supporting plate and used for temporarily bearing the steel coils in the transferring process; wherein the hoisting mechanism comprises a lifting bracket, and the lifting bracket is arranged on the main body supporting plate in a sliding manner and is driven to slide through a driving assembly; the hoisting plate is arranged on the lifting support in an up-down sliding mode, an arc-shaped groove is formed in the hoisting plate, and an opening of the arc-shaped groove is formed in the lower portion of the hoisting plate; the hoisting plate is controlled to slide up and down through a motor driving chain; and the two supporting rollers are symmetrically and rotationally arranged at the lower part of the hoisting plate.

Description

Technical Field

[0001] This utility model relates to the technical field of steel coil turnover, and in particular to a turnover device for the annealing process of ultra-large coils. Background Technology

[0002] In modern steel production, the ultra-large coil annealing process is a crucial step in improving steel quality and performance. The efficient and safe handling of these ultra-large coils is essential for ensuring smooth production and improving overall efficiency. However, traditional handling devices have numerous drawbacks and cannot meet the growing demands of the current ultra-large coil annealing process.

[0003] Existing steel coil handling equipment mostly employs simple, fixed lifting methods, resulting in poor flexibility and an inability to accurately adapt to the lifting needs of large, heavy coils of varying sizes and weights. Furthermore, the stability of the steel coils is difficult to guarantee during lifting, making them prone to swaying or even detachment, posing significant safety hazards. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a turnover device for the annealing process of ultra-large coils and heavy loose coils, which enhances the stability of steel coil hoisting and improves production efficiency.

[0005] This utility model discloses a turnover device for the annealing process of ultra-large coiled loose coils, comprising:

[0006] The main support plate is equipped with multiple omnidirectional casters at its bottom end, and the main support plate is supported on the ground by the omnidirectional casters.

[0007] The hoisting mechanism is horizontally slidably mounted on the main support plate and is used to hoist and move the steel coil. The main support plate is equipped with a drive assembly.

[0008] The temporary storage mechanism, installed on the main support plate, is used to temporarily support the steel coils during transportation;

[0009] The hoisting mechanism includes:

[0010] The lifting support is slidably mounted on the main support plate and is driven to slide by a drive component.

[0011] The lifting platform is mounted on a lifting support and slides up and down. The lifting platform has an arc-shaped groove with the opening at the bottom. The lifting platform slides up and down via a motor-driven chain.

[0012] Two support rollers are symmetrically arranged at the bottom of the lifting plate;

[0013] Two drive rollers are symmetrically rotated and positioned on the upper part of the lifting plate;

[0014] The transmission belt is wound around two transmission rollers;

[0015] The second motor is fixedly mounted on the hoisting plate and is used to drive one of the sets of transmission rollers;

[0016] The lifting ring is circular in shape, and its outer wall rolls in contact with two support rollers and two drive rollers.

[0017] As a preferred embodiment of this utility model, a limit block is provided on the lifting ring, and the limit block is located between two transmission rollers.

[0018] As a preferred embodiment of this utility model, the limiting block is made of rubber.

[0019] As a preferred embodiment of this utility model, the driving component includes:

[0020] The first motor is fixedly mounted on the main support plate;

[0021] A long screw is rotatably mounted on the main support plate and is driven to rotate by a first motor;

[0022] A threaded slider is fixedly connected to the lifting bracket, and the thread is fitted onto a long screw.

[0023] Two support rails are symmetrically arranged on the main support plate, and the bottom of the lifting bracket slides in conjunction with the two support rails.

[0024] As a preferred embodiment of this utility model, the temporary storage mechanism includes:

[0025] The temporary storage bracket is supported on the main support plate, and four bearing seats are provided on the temporary storage bracket;

[0026] Two idlers are rotatably mounted on a temporary storage bracket and rotate in conjunction with the bearing housing.

[0027] Two clamping components are symmetrically arranged on the temporary storage bracket.

[0028] As a preferred embodiment of this utility model, the clamping component includes:

[0029] Side clamp brackets are fixedly installed on the main support plate;

[0030] Two side clamps are horizontally movable and mounted on the side clamp bracket, and the two side clamps are symmetrical to each other.

[0031] As a preferred embodiment of this utility model, the clamping assembly further includes:

[0032] The positive and negative threaded rods are rotatably mounted on the side clamp bracket, and the positive and negative threads are symmetrically arranged on the positive and negative threaded rods.

[0033] Two guide blocks are symmetrically threaded onto the positive and negative threads of the positive and negative threaded rods, and two side clamping rods are respectively installed on the two guide blocks;

[0034] The guide rod is fixedly installed on the side clamp bracket. The guide rod and the positive and negative threaded rod are parallel to each other, and the guide rod is slidably engaged with the guide block.

[0035] As a preferred embodiment of this utility model, the side clamping rod is rotatably mounted on the guide block.

[0036] Compared with the prior art, the beneficial effects of this utility model are as follows: the omnidirectional casters at the bottom of the main support plate and the horizontal sliding arrangement of the hoisting mechanism on the main support plate, as well as the vertical sliding arrangement of the hoisting plate on the lifting bracket, enable the turnover device to flexibly adjust its position and height from multiple dimensions, accurately adapting to the hoisting needs of ultra-large coils of different specifications and weights, solving the problem of poor flexibility in traditional fixed hoisting methods; the hoisting ring rolls in close contact with the support rollers and transmission rollers, ensuring its stability when rotating the hoisting ring, and lifting the steel coil at the uninterrupted point by rotating the hoisting ring, which can better fix the steel coil compared with traditional hoisting methods, reduce the swaying of the steel coil during the hoisting process, effectively improve the stability of steel coil hoisting, and reduce safety hazards; the temporary storage mechanism can temporarily support the steel coil during the transfer process, facilitating the turnover device to carry out the next hoisting operation, improving transfer efficiency, ensuring the smoothness of the production process, and helping to improve overall production efficiency. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of this utility model;

[0038] Figure 2 This is an enlarged structural schematic diagram of the hoisting mechanism;

[0039] Figure 3 This is an enlarged schematic diagram of the temporary storage mechanism;

[0040] The following are labels in the attached diagram: 1. Main support plate; 11. First motor; 12. Long screw; 13. Threaded slider; 14. Support guide rail; 21. Lifting bracket; 22. Lifting plate; 23. Support roller; 24. Transmission roller; 25. Transmission belt; 26. Second motor; 27. Lifting ring; 28. Limiting block; 31. Temporary storage bracket; 32. Bearing seat; 33. Idler roller; 34. Side clamp bracket; 35. Side clamp rod; 36. Positive and negative threaded rod; 37. Guide block; 38. Guide rod. Detailed Implementation

[0041] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0042] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] Reference Figures 1-3 This embodiment provides a turnover device for the annealing process of large-diameter coiled rolls, comprising:

[0044] Main support plate 1, with multiple omnidirectional casters at the bottom end of the main support plate 1, is supported and set on the ground by the omnidirectional casters;

[0045] The hoisting mechanism is horizontally slidably mounted on the main support plate 1 and is used to hoist and move the steel coil. The main support plate 1 is equipped with a drive assembly.

[0046] The temporary storage mechanism, set on the main support plate 1, is used to temporarily support the steel coil during the transfer process;

[0047] The hoisting mechanism includes:

[0048] The lifting bracket 21 is slidably mounted on the main support plate 1 and is driven to slide by the drive component.

[0049] The lifting plate 22 is slidably mounted on the lifting bracket 21. The lifting plate 22 is provided with an arc-shaped groove, and the opening of the arc-shaped groove is located at the lower part of the lifting plate 22. The lifting plate 22 is controlled to slide up and down by a motor-driven chain.

[0050] Two support rollers 23 are symmetrically arranged at the lower part of the lifting plate 22;

[0051] Two drive rollers 24 are symmetrically arranged on the upper part of the lifting plate 22.

[0052] The transmission belt 25 is mounted on two transmission rollers 24.

[0053] The second motor 26 is fixedly mounted on the hoisting plate 22 and is used to drive one of the sets of transmission rollers 24.

[0054] The lifting ring 27 is circular, and the outer wall of the lifting ring 27 rolls and fits against the two support rollers 23 and the two transmission rollers 24.

[0055] In this embodiment, the main support plate 1 is pushed, and the universal casters at its bottom are used to move the transfer device to a suitable position for the steel coil to be hoisted. The universal casters allow for flexible adjustment of the device's direction and position, achieving precise positioning. The drive assembly on the main support plate 1 is activated, driving the lifting bracket 21 to slide horizontally on the main support plate 1, aligning the hoisting mechanism directly above the steel coil to ensure accurate hoisting position. The motor drive chain controlling the up-and-down sliding of the hoisting plate 22 is activated, causing the hoisting plate 22 to move downward on the lifting bracket 21, lowering the hoisting ring 27 onto the steel coil. The height is sufficient to pass through the opening; the steel coil is inserted through the opening of the lifting ring 27, so that the steel coil is inside the lifting ring 27; the second motor 26 is started, the second motor 26 drives one set of transmission rollers 24 to rotate, and drives the other set of transmission rollers 24 to rotate synchronously through the transmission belt 25, thereby driving the lifting ring 27 to rotate, so that the part of the lifting ring 27 without the gap rotates to the center of the steel coil, ready to lift the steel coil; the lifting plate 22 is lifted again by the motor drive chain, thereby lifting the steel coil off the ground; the lifting bracket 21 is driven by the drive assembly to support the main body. The steel coil is moved horizontally onto the temporary storage mechanism by sliding plate 1, and then placed on the temporary storage mechanism. The entire device is then moved to transfer the steel coil to the next process. The omnidirectional casters at the bottom of the main support plate 1, the horizontal sliding mechanism on the main support plate 1, and the vertical sliding mechanism on the lifting bracket 21 allow the turnover device to flexibly adjust its position and height from multiple dimensions, precisely adapting to the lifting needs of large, heavy, loose coils of different specifications and weights, solving the problem of poor flexibility in traditional fixed lifting methods. The ring 27 rolls in close contact with the support roller 23 and the transmission roller 24, ensuring its stability when rotating the lifting ring 27. Moreover, by rotating the lifting ring 27, the steel coil can be lifted from the gapless part, which can better fix the steel coil compared with the traditional lifting method, reduce the swaying of the steel coil during the lifting process, effectively improve the stability of the steel coil lifting, and reduce safety hazards. The temporary storage mechanism can temporarily support the steel coil during the transfer process, which is convenient for the turnover device to carry out the next lifting operation, improves the transfer efficiency, ensures the smoothness of the production process, and helps to improve the overall production efficiency.

[0056] As a preferred embodiment of the above technical solution, such as Figure 2 As shown, a limit block 28 is provided on the lifting ring 27, and the limit block 28 is located between the two transmission rollers 24;

[0057] In this embodiment, by limiting the rotation angle of the lifting ring 27, the lifting ring 27 can be accurately positioned after each rotation, ensuring that the steel coil can be accurately carried and lifted by the lifting ring 27. This avoids situations where the steel coil cannot be accurately placed in the lifting ring 27 or the lifting position is inaccurate due to excessive or insufficient rotation of the lifting ring 27, thus improving the accuracy and reliability of the lifting. The presence of the limiting block 28 makes the rotation of the lifting ring 27 more controllable, thereby improving the stability of the steel coil throughout the lifting process. During the lifting process, the steel coil can be stably placed in the lifting ring 27, reducing the swaying of the steel coil caused by the unstable rotation of the lifting ring 27, reducing the risk of the steel coil falling off, and enhancing the safety of the entire lifting process. The limiting block 28 restricts the rotation range of the lifting ring 27, avoiding unnecessary friction or collision between the lifting ring 27 and other components due to excessive rotation, thereby reducing equipment wear, extending the service life of each component of the lifting mechanism, and reducing equipment maintenance costs and replacement frequency.

[0058] Specifically, the limiting block 28 is made of rubber.

[0059] In this embodiment, rubber has good elasticity and cushioning properties; during the limiting process, when the limiting block 28 contacts the transmission roller 24 and other components, it can buffer the impact force generated by collision or friction, reduce wear and damage to the equipment, and also reduce noise, making the operation of the turnover device more stable and quiet.

[0060] More specifically, such as Figure 1 As shown, the driving component includes:

[0061] The first motor 11 is fixedly installed on the main support plate 1;

[0062] The long screw 12 is rotatably mounted on the main support plate 1 and is driven to rotate by the first motor 11;

[0063] The threaded slider 13 is fixedly connected to the lifting bracket 21 and is threadedly fitted onto the long screw 12;

[0064] Two support rails 14 are symmetrically arranged on the main support plate 1, and the bottom end of the lifting bracket 21 slides with the two support rails 14.

[0065] In this embodiment, the first motor 11 is started, which drives the long screw 12 to rotate on the main support plate 1. Since the threaded slider 13 is threadedly fitted onto the long screw 12 and fixedly connected to the lifting bracket 21, the rotation of the long screw 12 causes the threaded slider 13 to move linearly along the thread direction of the long screw 12. The linear movement of the threaded slider 13 causes the lifting bracket 21, which is fixedly connected to it, to slide on the two support guide rails 14, thereby realizing the horizontal sliding of the lifting bracket 21 on the main support plate 1, and thus driving the entire hoisting mechanism to move horizontally to adjust the relative position of the hoisting mechanism and the steel coil, so as to meet the hoisting requirements of steel coils at different positions. By driving the long screw to rotate through the motor, the screw... The sliding motion of the lifting support via a transmission mechanism allows for precise control of the horizontal position of the lifting mechanism. Compared to some traditional, simple lifting methods, this method can more accurately adapt to the lifting needs of large coils of different specifications and weights, improving the accuracy and flexibility of the lifting process. Two support rails 14 are symmetrically arranged on the main support plate 1, providing stable support and guidance for the lifting support 21. During the sliding process of the lifting support 21, the support rails 14 can restrict its direction of movement, preventing swaying or deviation, ensuring the stability of the lifting mechanism during horizontal movement, thereby improving the safety of the entire lifting process and reducing safety hazards caused by swaying or falling of the steel coil during lifting.

[0066] Furthermore, such as Figure 3 As shown, the temporary storage institutions include:

[0067] The temporary storage bracket 31 is supported on the main support plate 1, and four bearing seats 32 are provided on the temporary storage bracket 31.

[0068] Two idler rollers 33 are rotatably mounted on the temporary storage bracket 31 and are rotatably engaged with the bearing seat 32.

[0069] Two clamping components are symmetrically arranged on the temporary storage bracket 31;

[0070] In this embodiment, after the hoisting mechanism lifts the steel coil above the temporary storage mechanism, the hoisting plate 22 descends, and the steel coil is placed on two idler rollers 33. At this time, the weight of the steel coil is borne by the idler rollers 33. The idler rollers 33 can rotate flexibly through their rotational cooperation with the bearing seats 32 to adapt to the placement of the steel coil and subsequent possible position adjustments. Two clamping components are symmetrically arranged on the temporary storage bracket 31. After the steel coil is placed on the idler rollers 33, the clamping components are activated to clamp and fix the steel coil. Through the action of the clamping components, the steel coil will not shake or shift during the temporary storage process, ensuring the stability of the steel coil on the temporary storage mechanism. The temporary storage bracket 31 provides stable support for the entire temporary storage mechanism. The arrangement of four bearing seats 32 and two idler rollers 33 allows the steel coil to be placed stably on the temporary storage mechanism. The idler rollers 33 and the bearing seats 32 and the bearing seats 32 and the bearing seats 33 provide stable support for the entire temporary storage mechanism. The rotating fit of the bearing housing 32 reduces resistance during the placement and movement of the steel coil, ensuring stability during temporary storage and preventing potential shaking or falling due to instability. The two symmetrically arranged clamping components reliably clamp and secure the steel coil. Through these components, the steel coil is firmly fixed to the storage mechanism during temporary storage, further enhancing safety and preventing displacement, thus ensuring smooth production. The temporary storage mechanism provides a temporary bearing and fixing position for the steel coil during transfer, facilitating management and subsequent transfer operations. When steel coils need to be transferred, the lifting mechanism can quickly lift them, improving transfer efficiency and contributing to the efficient operation of the production process.

[0071] Furthermore, such as Figure 3 As shown, the clamping assembly includes:

[0072] Side clamp bracket 34 is fixedly installed on the main support plate 1;

[0073] Two side clamping rods 35 are horizontally movable and mounted on the side clamping bracket 34, and the two side clamping rods 35 are symmetrical to each other.

[0074] In this embodiment, after the hoisting mechanism lifts the steel coil onto the two idlers 33 of the temporary storage mechanism, the steel coil is positioned appropriately on the temporary storage bracket 31. Simultaneously, the two side clamping rods 35 move horizontally towards the steel coil. As the side clamping rods 35 move horizontally, they gradually approach the steel coil, eventually contacting its sides and applying pressure to clamp and fix the steel coil onto the temporary storage bracket 31. During the temporary storage of the steel coil, the side clamping rods 35 continuously maintain a clamping force on the steel coil to prevent it from shaking or shifting. This is achieved through two symmetrically arranged and horizontally movable side clamping rods 35... The five clamps effectively restrict the movement of the steel coils on the temporary storage bracket 31, enhancing the stability of the steel coils during temporary storage. This prevents the steel coils from shaking or falling due to external factors during storage, ensuring the safety of the steel coils on the temporary storage mechanism. The symmetrically arranged side clamping rods 35 can be adjusted according to the diameter of the steel coils. For large, loose coils of different specifications, the horizontal movement distance of the side clamping rods 35 can be controlled to effectively clamp steel coils of different diameters, improving the adaptability of the temporary storage mechanism to steel coils of different specifications.

[0075] Furthermore, such as Figure 3 As shown, the clamping assembly also includes:

[0076] The positive and negative threaded rod 36 is rotatably mounted on the side clamp bracket 34, and the positive and negative threads are symmetrically arranged on the positive and negative threaded rod 36.

[0077] Two guide blocks 37 are symmetrically threaded onto the positive and negative threads of the positive and negative threaded rods 36, and two side clamping rods 35 are respectively installed on the two guide blocks 37.

[0078] Guide rod 38 is fixedly installed on side clamp bracket 34. Guide rod 38 is parallel to positive and negative threaded rod 36. Guide rod 38 is slidably engaged with guide block 37.

[0079] In this embodiment, when the steel coil needs to be clamped, the positive and negative threaded rod 36 is driven to rotate on the side clamping bracket 34. Since the positive and negative threaded rod 36 is symmetrically provided with positive and negative threads, when the positive and negative threaded rod 36 rotates, the two guide blocks 37 move along the directions of the positive and negative threads respectively. The two guide blocks 37 are symmetrically threaded onto the positive and negative threaded rod 36, and the two side clamping rods 35 are respectively mounted on the two guide blocks 37. As the guide blocks 37 move on the positive and negative threaded rod 36, the side clamping rods 35 also move horizontally. Since the guide rod 38 is parallel to the positive and negative threaded rod 36 and slides with the guide blocks 37, the guide rod 38 plays a guiding role, ensuring the accuracy and stability of the horizontal movement of the guide blocks 37 and the side clamping rods 35. When the positive and negative threaded rod 36 rotates forward, the two side clamping rods 35 move towards the steel coil, achieving clamping of the steel coil. When the positive and negative threaded rod 36 rotates in reverse... The two side clamping rods 35 move away from the steel coil, releasing their grip. The positive and negative threads on the positive and negative threaded rods 36 allow the two guide blocks 37 to move synchronously, which in turn drives the two side clamping rods 35 to move synchronously towards or away from the steel coil. This ensures uniform clamping of the steel coil and avoids uneven force on the steel coil due to excessive or insufficient clamping force on one side, improving the stability and reliability of the steel coil clamping. The sliding fit between the guide rod 38 and the guide block 37 provides precise guidance for the horizontal movement of the guide block 37 and the side clamping rods 35. This allows for more accurate control of the movement position of the side clamping rods 35, ensuring that the side clamping rods 35 can accurately contact the side of the steel coil and apply appropriate clamping force, further improving the accuracy of the steel coil clamping. By driving the positive and negative threaded rods 36 to rotate, the distance between the two side clamping rods 35 can be flexibly adjusted to accommodate large coils of different diameters and weights.

[0080] Furthermore, the side clamping rod 35 is rotatably mounted on the guide block 37;

[0081] In this embodiment, if the side clamping rod 35 cannot rotate when it contacts the surface of the steel coil, the unevenness of the steel coil surface may cause large local pressure, resulting in wear of the side clamping rod 35 and the surface of the steel coil. However, the side clamping rod 35 is rotatably mounted on the guide block 37, which can disperse the pressure through rotation, reduce local wear, extend the service life of the side clamping rod 35 and the steel coil, and reduce the maintenance cost of the equipment.

[0082] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A turnover device for the annealing process of ultra-large coiled bulk rolls, characterized in that, include: The main support plate is provided with multiple omnidirectional casters at its bottom end, and the main support plate is supported on the ground by the omnidirectional casters. The hoisting mechanism is horizontally slidably mounted on the main support plate and is used to hoist and move the steel coil. The main support plate is equipped with a drive assembly. A temporary storage mechanism, installed on the main support plate, is used to temporarily support the steel coil during the transfer process; The hoisting mechanism includes: A lifting support frame is slidably mounted on the main support plate and is driven to slide by the driving component. A lifting plate is slidably mounted on the lifting bracket. The lifting plate has an arc-shaped groove with an opening at the bottom. The lifting plate slides up and down via a motor-driven chain. Two support rollers are symmetrically arranged at the lower part of the lifting plate; Two drive rollers are symmetrically rotated and mounted on the upper part of the lifting plate; A transmission belt is wound around the two transmission rollers; The second motor is fixedly mounted on the hoisting plate and is used to drive one of the sets of transmission rollers; The lifting ring is configured as a circular ring, and the outer wall of the lifting ring rolls in contact with the two support rollers and the two transmission rollers.

2. The turnover device for the annealing process of ultra-large coiled bulk rolls as described in claim 1, characterized in that, The lifting ring is provided with a limit block, which is located between the two transmission rollers.

3. A turnover device for ultra-large coil annealing process as described in claim 2, characterized in that, The limiting block is made of rubber.

4. A turnover device for ultra-large coil annealing process as described in claim 1, characterized in that, The driving component includes: The first motor is fixedly mounted on the main support plate; A long screw is rotatably mounted on the main support plate and is driven to rotate by the first motor. A threaded slider is fixedly connected to the lifting bracket and is threadedly fitted onto the long screw. Two support rails are symmetrically arranged on the main support plate, and the bottom end of the lifting bracket slides in cooperation with the two support rails.

5. A turnover device for ultra-large coil annealing process as described in claim 1, characterized in that, The temporary storage institution includes: A temporary storage bracket is supported on the main support plate, and four bearing seats are provided on the temporary storage bracket; Two idlers are rotatably mounted on the temporary storage bracket and rotatably engaged with the bearing seat. Two clamping components are symmetrically arranged on the temporary storage bracket.

6. A turnover device for ultra-large coil annealing process as described in claim 5, characterized in that, The clamping assembly includes: Side clamp brackets are fixedly installed on the main support plate; Two side clamping rods are horizontally movable and mounted on the side clamping bracket, and the two side clamping rods are symmetrical to each other.

7. A turnover device for ultra-large coil annealing process as described in claim 6, characterized in that, The clamping assembly further includes: A positive and negative threaded rod is rotatably mounted on the side clamp bracket, and the positive and negative threaded rod is symmetrically provided with positive and negative threads; Two guide blocks are symmetrically threaded onto the positive and negative threads of the positive and negative threaded rods, and two side clamping rods are respectively installed on the two guide blocks; The guide rod is fixedly installed on the side clamp bracket. The guide rod is parallel to the positive and negative threaded rods and slides with the guide block.

8. A turnover device for ultra-large coil annealing process as described in claim 7, characterized in that, The side clamping rod is rotatably mounted on the guide block.

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