Roll changing vehicle structure and roll changing method for a stainless steel strip processing line

Abstract

This invention relates to the field of stainless steel strip processing technology, specifically disclosing the structure and method of a roll changing trolley for a stainless steel strip processing line. The trolley includes: a track located on the roll exit side of the mill; a mounting base slidably connected to the track; a mounting frame X on one side of the mounting base; a roller X rotatably connected to the mounting frame X; a mounting plate fixedly connected to the other side of the mounting base; a support plate slidably connected to the mounting plate; a mounting frame Y on the mounting base; and a roller Y rotatably connected to the mounting frame Y. This invention allows for position adjustment based on the roll changing location, reducing the idle rate of the roll changing trolley structure in the stainless steel strip processing line and enabling its effective use. It also allows for rapid loading of new rolls, preventing the transfer of old rolls from affecting the loading of new rolls, thus enabling new rolls to quickly enter the rolling process and reducing the impact of roll changing operations on mill operation.

Description

Technical Field

[0001] This invention relates to the field of stainless steel strip processing technology, and specifically discloses the structure and method of the roll changing car of the rolling mill in a stainless steel strip processing line. Background Technology

[0002] Stainless steel strip is a thin and long metal product, shaped by pressure applied between the rolls of a stainless steel strip rolling mill. Therefore, the rolls are the core components of the mill. With continuous use, the surface finish of the rolls gradually decreases, which undoubtedly negatively impacts the rolling effect of the stainless steel strip rolling mill. Therefore, to ensure the production quality of stainless steel strip, the rolls of the stainless steel strip rolling mill must be replaced regularly during use.

[0003] For ultra-large rolling mills, current roll-changing devices are typically located in front of each roll, meaning each roll position is equipped with an independent roll-changing device. While this allows for simultaneous roll changing at various positions, in actual use, the roll-changing frequency of the mill is not high, resulting in low utilization of each roll-changing device. Furthermore, the wear on each roll is uneven, meaning that situations requiring simultaneous replacement of multiple rolls are rare. In addition, from an economic perspective, factories typically do not hire additional workers for occasional simultaneous roll-changing operations. In summary, the efficiency of existing roll-changing devices is relatively low. Therefore, for large rolling mills, there is still significant room for optimization in current roll-changing devices. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by proposing a rolling mill roll changing car structure and roll changing method suitable for large rolling mills and with greater efficiency in stainless steel strip processing lines.

[0005] The structure of the roll changing car for a stainless steel strip processing line includes: a track, which is located on the roll exit side of the rolling mill;

[0006] Mounting base, with a mounting base slidably connected to the track;

[0007] Mounting frame X, a mounting frame X is provided on one side of the mounting base;

[0008] Roller X is rotatably connected to mounting frame X;

[0009] Mounting plate, the other side of the mounting base is fixedly connected to the mounting plate;

[0010] A support plate is slidably connected to the mounting plate;

[0011] Mounting frame Y, the mounting base is provided with mounting frame Y;

[0012] Roller Y is rotatably connected to the mounting frame Y, and roller Y is rotatably connected to the support plate.

[0013] Furthermore, it is particularly preferred that the lowest position of the movement range of roller X is lower than that of roller Y, and roller X and roller Y are offset.

[0014] Furthermore, it is particularly preferred that the device also includes: an electric shaft, on which the mounting base is fixedly connected;

[0015] A rotating wheel is rotatably connected to the mounting base. The rotating wheel rolls in the track, and the output shaft of the electric shaft is fixed to the rotating wheel.

[0016] Furthermore, it is particularly preferred that the mounting bracket is also included, with the mounting bracket fixedly connected to the mounting base;

[0017] A mounting ring is fixedly connected inside the mounting base;

[0018] Screw X is rotatably connected between the mounting bracket and the mounting ring, and screw X is threadedly installed with the mounting frame X.

[0019] Transmission component X is connected to screw X;

[0020] Drive X is fixedly connected inside the mounting base, and the output end of drive X is fixedly connected to one of the screws X.

[0021] Screw Y is rotatably connected inside the mounting base, and screw Y is threadedly connected to mounting frame Y.

[0022] The transmission component Y is connected to the screw Y;

[0023] A drive Y is fixedly connected to a mounting base, and the output end of the drive Y is fixedly connected to one of the screws Y.

[0024] In addition, it is particularly preferred that the mounting base also includes: a mounting platform, on which the mounting base is fixedly connected;

[0025] Electric pole X is fixedly connected to the mounting platform;

[0026] Connecting block X: The end of the electric pole X is fixedly connected to the connecting block X;

[0027] Hook block, a hook block is fixedly connected to the connecting block X.

[0028] In addition, it is particularly preferred that the mounting base also includes: a limiting bracket, which is slidably connected to the mounting base;

[0029] Electric rod Y, with electric rod Y fixedly connected inside the mounting base;

[0030] Connecting block Y is fixedly connected to the end of the electric rod Y, and connecting block Y is fixedly connected to the limit frame.

[0031] Furthermore, it is particularly preferred that the mounting base also includes: a mounting frame Z, on which the mounting base is fixedly connected;

[0032] Roller Z is rotatably connected to the mounting frame Z;

[0033] Limiting plates are slidably connected to the left and right sides of the mounting frame Z;

[0034] Rollers are rotatably connected to the limiting plate.

[0035] Furthermore, it is particularly preferred that the device also includes: an electric rod Z, on which the electric rod Z is fixedly connected;

[0036] Connecting block Z: The end of the electric rod Z is fixedly connected to the connecting block Z, and the connecting block Z is fixedly connected to one of the limiting plates.

[0037] A rack is fixedly connected to both limit plates;

[0038] The gear is rotatably connected to the mounting frame Z, and the gear meshes with the racks on both limit plates.

[0039] This invention provides a roll changing method for a roll changing car structure in a stainless steel strip processing line:

[0040] S1. Place a new roll on the roller Y. According to the roll size, control the electric rod Y to adjust the position of the limit frame and control the electric rod Z to adjust the position of the limit plate.

[0041] S2. Control the electric lever X to move the hook block backward and connect the hook block to the old roll. After completion, control the electric lever X to move the hook block forward and transfer the roll to the roller X.

[0042] S3. Disconnect the old roll from the hook block, control drive X to move the roller shaft X and the old roll on it upward, and control drive Y to move the new roll so that the new roll abuts against the limit frame;

[0043] S4. Connect the hook block to the new roll, control the electric lever X to move the new roll backward, the limit frame guides the new roll to move, and load the new roll into the mill.

[0044] S5. Control drive X to move the old roll downwards. Roller shaft X passes through roller shaft Y, transferring the old roll onto roller shaft Y. Control drive Y to move the old roll, and use the transfer device to remove the old roll.

[0045] Beneficial effects:

[0046] This invention utilizes a movable mounting base, allowing for position adjustment based on roll change location. This reduces the idle rate of the roll changer structure on stainless steel strip processing lines, thus improving the invention's effectiveness and efficiency. The invention employs roller shafts X and Y for swapping old and new rolls, enabling rapid installation of new rolls and preventing the transfer of old rolls from interfering with the installation of new rolls. This improves roll change efficiency and allows new rolls to quickly enter the rolling mill, reducing the impact of roll change operations on mill operation. The invention also uses an electric lever X to assist roll movement, allowing for better control of roll change operations and enhancing overall performance. Furthermore, the invention uses a limiting frame and limiting plate to assist in loading new rolls into the mill, improving the convenience and smoothness of roll change operations. Finally, the invention sets the limiting plate for synchronous adjustment along a unified centerline to prevent adjustment deviations and ensure the effective adjustment of the limiting plate. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0048] Figure 2 This is a schematic diagram of the connection structure of the track, mounting base and mounting plate in this invention.

[0049] Figure 3 This is a schematic diagram of the connection structure of the mounting base, electric shaft, and rotating wheel in this invention.

[0050] Figure 4 This is a schematic diagram of the connection structure of the mounting frame X, roller X, mounting frame Y, and roller Y in this invention.

[0051] Figure 5 This is a schematic diagram of the connection structure between screw X and screw Y in this invention.

[0052] Figure 6 This is a schematic diagram of the position structure when roller Y moves below roller X in this invention.

[0053] Figure 7 This is a front view of the height positions of rollers X and Y in this invention.

[0054] Figure 8 This is a schematic diagram of the connection structure of the moving rod X, the connecting block X, and the hook block in this invention.

[0055] Figure 9 This is a schematic diagram of the positional structure of the limiting frame and the roller Y in this invention.

[0056] Figure 10 This is a schematic diagram of the connection structure of the electric rod Y, the connecting block Y, and the limiting frame in this invention.

[0057] Figure 11 This is a schematic diagram showing the positional structure of the mounting frame Z and the limiting plate in this invention.

[0058] Figure 12 This is a cross-sectional view of the connection structure between the mounting frame Z and the limiting plate in this invention.

[0059] The markings in the attached diagram are as follows: 0-roller; 1-track; 2-mounting base; 3-electric shaft; 4-wheel; 5-mounting plate; 6-mounting frame X; 7-roller X; 8-mounting bracket; 9-mounting ring; 10-screw X; 11-transmission component X; 12-drive X; 13-support plate; 14-mounting frame Y; 15-roller Y; 16-screw Y; 17-transmission component Y; 18-drive Y; 19-mounting platform; 20-electric rod X; 21-connecting block X; 22-hook block; 23-limiting frame; 24-electric rod Y; 25-connecting block Y; 26-mounting frame Z; 27-roller Z; 28-guide rod; 29-limiting plate; 30-electric rod Z; 31-connecting block Z; 32-rack; 33-gear; 34-roller. Detailed Implementation

[0060] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0061] Example: Roll changing car structure of a stainless steel strip processing line, see reference. Figures 1-3 The system includes: a track 1, which is fixedly installed on the roll exit side of the rolling mill, and in this embodiment, it is taken as the front side of the rolling mill; a mounting base 2, which is slidably installed on the track 1 and moves left and right on the track 1; an electric shaft 3, which is fixedly installed on the bottom of the mounting base 2; a rotating wheel 4, which is rotatably installed on both the front and rear sides of the mounting base 2 and rolls in the track 1. The output shaft of the electric shaft 3 is fixed to the rotating wheel 4. When the electric shaft 3 is started, it controls the left and right movement of the mounting base 2 by rotating the rotating wheel 4 in both directions; and a mounting plate 5, which is fixedly installed on the right side of the mounting base 2.

[0062] See Figures 1-6It also includes: a mounting frame X6, which is provided on the left side of the mounting base 2; a roller X7, which is rotatably mounted on the mounting frame X6 to assist the movement of the roll 0; a mounting bracket 8, which is fixedly mounted on the left side of the mounting base 2; a mounting ring 9, which is fixedly mounted inside the mounting base 2; a screw X10, which is rotatably mounted between the mounting bracket 8 and the mounting ring 9, and is threadedly mounted to the mounting frame X6, and can control the up and down movement of the mounting frame X6 by rotating the screw X10 in both directions; a transmission component X11, which is a transmission pulley set installed between the screws X10, and is used to transmit and control the synchronous rotation of all the screws X10; and a drive X12, which is a motor fixedly mounted inside the mounting base 2, and is the output shaft of the drive X12 fixedly mounted to one of the screws X10, thereby providing driving power for the rotation of the screw X10.

[0063] See Figure 1 , Figure 4 , Figure 5 and Figure 6 It also includes: a support plate 13, which is slidably mounted on the mounting plate 5; a mounting frame Y14, which is provided on the mounting base 2; and a roller Y15, which is rotatably mounted on the mounting frame Y14 for assisting the movement of the roll 0. The roller Y15 is rotatably mounted to the support plate 13. (See reference...) Figure 7 The lowest point of the movement range of roller X7 is lower than that of roller Y15. Roller X7 and roller Y15 are staggered so that they can intersect when they move to meet. Screw Y16 is rotatably installed in mounting base 2. Screw Y16 is threadedly installed on mounting frame Y14. Rotation of screw Y16 controls the left and right movement of mounting frame Y14. Transmission component Y17 is installed between screws Y16. Transmission component Y17 is a transmission pulley set used to drive all screws Y16 to rotate synchronously. Drive Y18 is fixedly installed on mounting base 2. Drive Y18 is a motor. The output shaft of drive Y18 is fixedly installed with one of the screws Y16, thereby providing driving power for the rotation of screw Y16.

[0064] Move the mounting base 2 to the front of the roll 0 that needs to be replaced, and move the roll 0 forward from the mill. The roll 0 can then be transferred to the roller X7. Then, control the mounting frame X6 and the roller X7 to move upward, first moving the old roll 0 away from the position to be replaced. Then, control the mounting frame Y14 and the roller Y15 to move to the left, moving the new roll 0 to the front of the position to be replaced. The new roll 0 can then be loaded onto the mill. After completion, control the mounting frame X6 and the roller X7 to move downward. During this process, the roller X7 and the roller Y15 are misaligned, and the roller X7 moves below the roller Y15. Therefore, the old roll 0 will be transferred to the roller Y15. Then, the roller Y15 moves to the right, moving the roll 0 to the right side of the mounting base 2. The old roll 0 can then be transferred away using a crane or other transfer device. In the above process, by setting up the step of swapping between the old and new rolls 0, the new roll 0 can be installed directly without waiting for the old roll 0 to be transferred. This can improve the replacement efficiency of the rolls 0 and make it unaffected by the arrangement and use of the transfer device.

[0065] See Figure 1 and Figure 8 It also includes: a mounting platform 19, which is fixedly mounted on the front side of the mounting base 2; an electric rod X20, which is fixedly mounted on the mounting platform 19; a connecting block X21, which is fixedly mounted on the end of the electric rod X20, and the electric rod X20 controls the forward and backward movement of the connecting block X21; and a hook block 22, which is fixedly mounted on the rear side of the connecting block X21. The roller 0 can be connected to the connecting block X21 using the hook block 22. Therefore, the electric rod X20 can assist the roller 0 in moving forward and backward.

[0066] Since the mill cannot control the movement of roll 0 after it is completely disengaged from the mill, the roll changing trolley structure of the stainless steel strip processing line assists in the movement of roll 0 by setting up an electric lever X20. After roll 0 is disengaged from the mill, it controls roll 0 to move to the middle position on the roll shaft X7, and moves the new roll 0 to be loaded into the mill, so that the new roll 0 can be controlled by the mill to continue loading into the mill. Therefore, the roll changing trolley structure of the stainless steel strip processing line can better control roll 0 during roll changing operations.

[0067] See Figure 1 , Figure 9 and Figure 10 It also includes: a limiting frame 23, which is slidably installed on the left side of the mounting base 2 and is inserted between the rollers X7; an electric rod Y24, which is fixedly installed inside the mounting base 2; and a connecting block Y25, which is fixedly installed at the end of the electric rod Y24 and is fixedly installed with the limiting frame 23. The electric rod X20 controls the left and right movement of the limiting frame 23.

[0068] Before using the roller Y15 to move the new roll 0 to the left, adjust the position of the limit frame 23 according to the size of the roll 0, so that the position of the new roll 0 when it is loaded into the mill can be quickly and accurately positioned. This makes it easier and smoother for the electric lever X20 to assist the roll 0 in being loaded into the mill.

[0069] See Figure 1 , Figure 11 and Figure 12 It also includes: a mounting frame Z26, which is fixedly mounted on the left rear part of the mounting base 2, and the mounting frame Z26 is connected to the rolling mill and the mounting base 2; a roller Z27, which is rotatably mounted on the mounting frame Z26 to assist the movement of the roll 0; a guide rod 28, which is fixedly mounted inside the mounting frame Z26; a limiting plate 29, which is slidably mounted on the left and right sides of the mounting frame Z26, and the limiting plate 29 is slidably mounted with the guide rod 28; and an electric rod Z30, which is fixed at the bottom of the mounting frame Z26. The system includes: an electric rod Z30; a connecting block Z31, which is fixedly installed at the end of the electric rod Z30 and is fixedly installed with one of the limiting plates 29; a rack 32, which is fixedly installed at the bottom of both limiting plates 29; a gear 33, which is rotatably installed at the bottom of the mounting frame Z26 and meshes with the racks 32 on both limiting plates 29 to enable the two limiting plates 29 to move synchronously; and a roller 34, which is rotatably installed on the limiting plates 29.

[0070] The rolling mill roll changing trolley structure of the stainless steel strip processing line uses a limiting plate 29 to restrict the movement of the roll 0, which can prevent the roll 0 from shifting position during the loading process into the rolling mill, thereby further improving the convenience and smoothness of loading the roll 0 onto the rolling mill. The rolling mill roll changing trolley structure of the stainless steel strip processing line uses an electric lever Z30 to adjust the limiting plate 29, and uses gear 33 and rack 32 to achieve synchronous adjustment of the limiting plate 29, so that the limiting plate 29 can be adjusted synchronously with a fixed center line, thereby keeping the limiting position of the limiting plate 29 centered and preventing the limiting position of the limiting plate 29 from shifting.

[0071] The roll changing method of the roll changing car structure of the stainless steel strip processing line:

[0072] S1. Place a new roll 0 on the roller Y15. According to the size of the roll 0, control the electric rod Y24 to adjust the left and right positions of the limit frame 23, and control the electric rod Z30 to adjust the left and right positions of the limit plate 29.

[0073] S2. Control the electric lever X20 to move the hook block 22 backward, connect the hook block 22 to the old roll 0, and then control the electric lever X20 to move the hook block 22 forward, so as to transfer the roll 0 to the roller X7 in cooperation with the rolling mill.

[0074] S3. Disconnect the old roll 0 from the hook block 22, control drive X12 to move the roller shaft X7 and the old roll 0 on it upward, control drive Y18 to move the new roll 0 to the left, so that the new roll 0 abuts against the limit frame 23, and connect the new roll 0 to the new roll 0, control electric rod X20 to move the new roll 0 backward, limit frame 23 guides the new roll 0 to move, and load the new roll 0 into the rolling mill;

[0075] S5. Control drive X12 to move the old roll 0 downwards, roll shaft X7 passes through roll shaft Y15, and transfer the old roll 0 onto roll shaft Y15. Control drive Y18 to move the old roll 0 to the right, and then use the transfer device to remove the old roll 0.

[0076] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. A roll changing car structure of a rolling mill of a stainless steel strip processing line, characterized by, include: Track (1), track (1) is set on the roll exit side of the rolling mill; Mounting base (2), the mounting base (2) is slidably connected to the track (1), the mounting base (2) can move left and right; Mounting frame X (6), mounting frame X (6) is provided on one side of mounting base (2), mounting frame X (6) can move up and down; Roller X (7) is rotatably connected to the mounting frame X (6) for assisting the movement of the roll (0); Mounting plate (5), and mounting base (2) is fixedly connected to the other side of the mounting plate (5); Support plate (13) is slidably connected to mounting plate (5); Mounting frame Y (14), mounting base (2) is provided with mounting frame Y (14), mounting frame Y (14) can move left and right; Roller Y (15) is rotatably connected to the mounting frame Y (14) for assisting the movement of the roll (0). Roller Y (15) is rotatably connected to the support plate (13). The lowest position of the movement range of roller X (7) is lower than that of roller Y (15). Roller X (7) and roller Y (15) are staggered so that they can intersect when they move to meet. It also includes: mounting bracket (8), and mounting bracket (8) is fixedly connected to mounting base (2); Mounting ring (9), the mounting base (2) is fixedly connected to the mounting ring (9); Screw X (10) is rotatably connected between mounting bracket (8) and mounting ring (9). Screw X (10) is threadedly installed with mounting frame X (6) to control the up and down movement of mounting frame X (6). A transmission component X (11) is connected between the transmission component X (11) and the screw X (10) for controlling their synchronous rotation. Drive X (12), drive X (12) is fixedly connected inside the mounting base (2), and the output end of drive X (12) is fixedly connected to one of the screws X (10); Screw Y (16) is rotatably connected inside the mounting base (2). Screw Y (16) is threadedly connected to the mounting frame Y (14) to control the left and right movement of the mounting frame Y (14). A transmission component Y(17) is connected between the transmission component Y(17) and the screw Y(16) for controlling their synchronous rotation. Drive Y (18) is fixedly connected to the mounting base (2), and the output end of drive Y (18) is fixedly connected to one of the screws Y (16).

2. The roll changing car structure of the stainless steel strip processing line according to claim 1, characterized in that, Also includes: Electric shaft (3), the electric shaft (3) is fixedly connected to the mounting base (2); Rotary wheel (4) is rotatably connected to the mounting base (2). The rotating wheel (4) rolls in the track (1). The output shaft of the electric shaft (3) is fixed to the rotating wheel (4) to drive the mounting base (2) to move left and right.

3. The rolling mill roll changing car structure for a stainless steel strip processing line according to claim 2, characterized in that, Also includes: Mounting platform (19), mounting base (2) is fixedly connected to mounting platform (19); Electric rod X (20) is fixedly connected to the mounting platform (19); Connecting block X (21), the end of the electric pole X (20) is fixedly connected to the connecting block X (21); Hook (22) is fixedly connected to connecting block X (21). Roller (0) can be connected to connecting block X (21) using hook (22) to control the forward and backward movement of roller (0).

4. The roll changing trolley structure of the stainless steel strip processing line according to claim 3, characterized in that, Also includes: The limiting frame (23) is slidably connected to the mounting base (2) for limiting the position of the roll (0); Electric rod Y (24) is fixedly connected inside the mounting base (2); Connecting block Y (25) is fixedly connected to the end of electric rod Y (24). Connecting block Y (25) is fixedly connected to limit frame (23) to control and adjust the position of limit frame (23).

5. The rolling mill roll changing car structure for a stainless steel strip processing line according to claim 4, characterized in that, Also includes: Mounting frame Z (26), mounting base (2) is fixedly connected to mounting frame Z (26) for docking mill and mounting base (2); Roller Z (27) is rotatably connected to the mounting frame Z (26) for assisting the movement of the roll (0); Limiting plate (29), the left and right sides of the mounting frame Z (26) are slidably connected to the limiting plate (29); Roller (34) is rotatably connected to the limiting plate (29).

6. The roll changing car structure for a stainless steel strip processing line according to claim 5, characterized in that, Also includes: Electric rod Z (30) is fixedly connected to the mounting frame Z (26); Connecting block Z (31), the end of the electric rod Z (30) is fixedly connected to connecting block Z (31), and connecting block Z (31) is fixedly connected to one of the limiting plates (29) to control and adjust the position of the limiting plate (29); The rack (32) is fixedly connected to both limiting plates (29); Gear (33) is rotatably connected to the mounting frame Z (26), and gear (33) meshes with racks (32) on the two limiting plates (29).

7. The roll changing method of the roll changing car structure of the stainless steel strip processing line according to claim 6, characterized in that, Specifically, the following steps are included: S1. Place a new roll (0) on the roller Y (15). According to the size of the roll (0), control the electric lever Y (24) to adjust the position of the limit frame (23) and control the electric lever Z (30) to adjust the position of the limit plate (29). S2. Control the electric lever X (20) to move the hook block (22) backward and connect the hook block (22) with the old roll (0). After completion, control the electric lever X (20) to move the hook block (22) forward and transfer the roll (0) to the roller X (7). S3. Disconnect the old roll (0) from the hook block (22), control drive X (12) to move the roller shaft X (7) and the old roll (0) on it upward, control drive Y (18) to move the new roll (0) so that the new roll (0) abuts against the limit frame (23); S4. Connect the hook block (22) to the new roll (0), control the electric lever X (20) to move the new roll (0) backward, and guide the new roll (0) to move using the limit frame (23) to load the new roll (0) into the mill. S5. Control drive X (12) to move the old roll (0) downwards, roll shaft X (7) passes through roll shaft Y (15) to transfer the old roll (0) onto roll shaft Y (15), control drive Y (18) to move the old roll (0), and use the transfer device to remove the old roll (0).

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