Rolling mill roll changing trolley structure and roll changing method for stainless steel band machining line

Abstract

The invention relates to the technical field of stainless steel band machining, and particularly discloses a rolling mill roll changing trolley structure of a stainless steel band machining line and a roll changing method. The track is connected with the mounting seat in a sliding manner; the mounting frame X is arranged on one side of the mounting seat; the roller shaft X is rotationally connected to the mounting frame X; the other side of the mounting seat is fixedly connected with the mounting plate; the mounting plate is connected with the supporting plate in a sliding manner; the mounting frame Y is arranged on the mounting seat; the roller shaft Y is rotationally connected to the mounting frame Y. Position adjustment can be carried out according to the roll changing position, and the rolling mill roll changing trolley structure vacancy rate of a stainless steel band machining line is reduced, so that the rolling mill roll changing trolley structure can be effectively used; a new roller can be quickly loaded, so that the loading operation of the new roller is prevented from being influenced by the transfer operation of the old roller, the new roller can quickly enter the rolling operation, and the influence of the roller replacement operation on the operation of the rolling mill is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of stainless steel strip processing, and specifically discloses a rolling mill roll changing vehicle structure and a roll changing method for a stainless steel strip processing line. Background Art

[0002] Stainless steel strip is a thin and long metal product, which is shaped by the pressure applied between the rollers of the stainless steel strip rolling mill. Therefore, the roller is the core component of the stainless steel strip rolling mill. With the continuous use of the roller, the surface finish of the roller gradually decreases, which will undoubtedly have a negative impact on the rolling effect of the stainless steel strip rolling mill. Therefore, in order to ensure the production quality of stainless steel strip, the stainless steel strip rolling mill needs to replace the roller regularly during use.

[0003] For super-large rolling mills, the roll changing device currently used is usually set on the front side of each roll, that is, each roll position is equipped with an independent roll changing device. Although this can simultaneously change the rolls at each position, in actual use, the roll changing frequency of the rolling mill is not high, which makes the utilization rate of each roll changing device low, and the wear effect of each roll is different, that is, it is rare to need to replace multiple rolls at the same time. In addition, from the perspective of economic benefits, factories usually do not hire multiple workers for occasional synchronous roll changing operations. In summary, the use efficiency of existing roll changing devices is relatively low. Therefore, for large rolling mills, there is still a lot of room for optimization of the current roll changing devices. Summary of the invention

[0004] In view of the defects of the prior art, the present invention proposes a rolling mill roll changing vehicle structure and a roll changing method for a stainless steel strip processing line which are suitable for large-scale rolling mills and have higher use efficiency.

[0005] The rolling mill roll changing car structure of the stainless steel strip processing line comprises: a track, which is arranged on the roll outlet side of the rolling mill;

[0006] A mounting seat, the rail being slidably connected with the mounting seat;

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

[0008] A roller shaft X is rotatably connected to the mounting frame X;

[0009] A mounting plate, with the other side of the mounting seat being fixedly connected to the mounting plate;

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

[0011] An installation frame Y is provided on the installation seat;

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

[0013] In addition, it is particularly preferred that the lowest position of the moving range of the roller axis X is lower than the roller axis Y, and the roller axis X and the roller axis Y are staggered.

[0014] In addition, it is particularly preferred that it further comprises: an electric shaft, the mounting seat being fixedly connected with the electric shaft;

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

[0016] In addition, it is particularly preferred that it further comprises: a mounting frame, the mounting seat being fixedly connected to the mounting frame;

[0017] A mounting ring, wherein the mounting seat is fixedly connected with a mounting ring;

[0018] The screw X is rotatably connected between the mounting frame and the mounting ring, and the screw X is threadedly mounted on the mounting frame X;

[0019] A transmission member X is connected between the transmission member X and the screw X;

[0020] A drive X is fixedly connected in the mounting seat, and an output end of the drive X is fixedly connected to one of the screw rods X;

[0021] The screw Y is rotatably connected in the mounting seat, and the screw Y is threadedly connected to the mounting frame Y;

[0022] The transmission member Y is connected with the screw rod Y;

[0023] Drive Y: The mounting seat is fixedly connected with drive Y, and the output end of drive Y is fixedly connected with one of the screw rods Y.

[0024] In addition, it is particularly preferred that it further comprises: a mounting platform, the mounting seat being fixedly connected to the mounting platform;

[0025] The electric rod X is fixedly connected to the mounting platform;

[0026] A connecting block X, a rod end of the electric rod X is fixedly connected with the connecting block X;

[0027] A hook block is fixedly connected to the connecting block X.

[0028] In addition, it is particularly preferred that it further comprises: a limiting frame, the mounting seat is slidably connected to the limiting frame;

[0029] The electric rod Y is fixedly connected to the mounting base;

[0030] Connecting block Y: the rod end of the electric rod Y is fixedly connected with the connecting block Y, and the connecting block Y is fixedly connected with the limiting frame.

[0031] In addition, it is particularly preferred that it further comprises: a mounting frame Z, the mounting seat being fixedly connected with the mounting frame Z;

[0032] Roller shaft Z, the mounting frame Z is rotatably connected with the roller shaft Z;

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

[0034] Roller, the limit plate is rotatably connected with a roller.

[0035] In addition, it is particularly preferred that it further comprises: an electric rod Z, to which the mounting frame Z is fixedly connected;

[0036] A connecting block Z, the rod end of the electric rod Z is fixedly connected with the connecting block Z, and the connecting block Z is fixedly connected to one of the limit plates;

[0037] Racks, both limit plates are fixedly connected with racks;

[0038] Gear: The mounting frame Z is rotatably connected with a gear, and the gear is meshed with the racks on the two limit plates.

[0039] The present invention provides a roll changing method for a rolling mill roll changing vehicle structure of a stainless steel strip processing line:

[0040] S1. Place a new roll on the roll shaft 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 rod X to move the hook block backwards, connect the hook block with the old roller, and after completion, control the electric rod X to move the hook block forwards, and transfer the roller to the roller axis X;

[0042] S3, releasing the connection between the old roller and the hook block, controlling the drive X to move the roller axis X and the old roller thereon upward, and controlling the drive Y to move the new roller so that the new roller abuts against the limit frame;

[0043] S4, connect the hook block with the new roller, control the electric rod X to move the new roller backward, the limit frame guides the new roller to move, and the new roller is installed in the rolling mill;

[0044] S5, control drive X to move the old roller downward, roller axis X passes through roller axis Y, transfer the old roller to roller axis Y, control drive Y to move the old roller, and use the transfer device to take away the old roller.

[0045] Beneficial effects:

[0046] The present invention uses a movable mounting seat, and by enabling the present invention to adjust its position according to the roll changing position, the vacancy rate of the roll changing vehicle structure of the rolling mill of the stainless steel strip processing line is reduced, so that the present invention can be effectively used, and the use efficiency of the present invention is improved; the present invention uses a roll axis X and a roll axis Y that can replace the old and new rolls, so that the present invention can quickly load the new rolls to prevent the transfer operation of the old rolls from affecting the loading operation of the new rolls, improve the replacement efficiency of the rolls, enable the new rolls to quickly enter the rolling operation, and reduce the impact of the roll changing operation on the operation of the rolling mill; the present invention uses an electric rod X that can assist the movement of the rolls, so that the present invention can better control the rolls for the roll changing operation, and improve the use effect of the present invention; the present invention uses a limit frame and a limit plate to assist the new rolls to be loaded into the rolling mill, and improves the convenience and smoothness of the roll changing operation of the present invention; the present invention sets the limit plate to be synchronously adjusted with a unified center line to prevent the limit position of the limit plate from being adjusted offset, and ensure the adjustment effect of the limit plate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0048] Figure 2 It is a schematic diagram of the connection structure of the track, the mounting seat and the mounting plate in the present invention.

[0049] Figure 3 It is a schematic diagram of the connection structure of the mounting seat, the electric shaft and the rotating wheel in the present invention.

[0050] Figure 4 Schematic diagram of the connection structure of the mounting frame X, the roller shaft X, the mounting frame Y and the roller shaft Y in the present invention.

[0051] Figure 5 Schematic diagram of the connection structure of screw X and screw Y in the present invention.

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

[0053] Figure 7 This is a front view of the height position of the roller axis X and the roller axis Y in the present invention.

[0054] Figure 8 It is a schematic diagram of the connection structure of the movable rod X, the connecting block X and the hook block in the present invention.

[0055] Fig. 9 It is a schematic diagram of the position structure of the limit frame and the roller axis Y in the present invention.

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

[0057] Fig.11 It is a schematic diagram of the position structure of the installation frame Z and the limiting plate in the present invention.

[0058] Fig.12 It is a cross-sectional view of the connection structure of the mounting frame Z and the limiting plate in the present invention.

[0059] The markings in the attached drawings are: 0-roller; 1-track; 2-mounting seat; 3-electric shaft; 4-rotating wheel; 5-mounting plate; 6-mounting frame X; 7-roller shaft X; 8-mounting frame; 9-mounting ring; 10-screw X; 11-transmission member X; 12-drive X; 13-support plate; 14-mounting frame Y; 15-roller shaft Y; 16-screw Y; 17-transmission member Y; 18-drive Y; 19-mounting table; 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 shaft Z; 28-guide rod; 29-limiting plate; 30-electric rod Z; 31-connecting block Z; 32-rack; 33-gear; 34-roller. DETAILED DESCRIPTION

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

[0061] Example: Roller changing car structure of stainless steel strip processing line, see Figure 1-Figure 3 , including: a track 1, which is fixedly installed on the roll-out side of the rolling mill, which is taken as the front side of the rolling mill in this embodiment; a mounting seat 2, on which the mounting seat 2 is slidably installed, and the mounting seat 2 moves left and right on the track 1; an electric shaft 3, on which the electric shaft 3 is fixedly installed at the bottom of the mounting seat 2; a rotating wheel 4, on which the rotating wheels 4 are rotatably installed on the front and rear sides of the mounting seat 2, and the rotating wheel 4 rolls in the track 1, and the output shaft of the electric shaft 3 is fixed to the rotating wheel 4. When the electric shaft 3 is started, it will control the mounting seat 2 to move left and right by rotating the rotating wheel 4 forward and backward; a mounting plate 5, on which the mounting plate 5 is fixedly installed on the right side of the mounting seat 2.

[0062] See also Figure 1-Figure 6, also includes: a mounting frame X6, a mounting frame X6 is arranged on the left side of the mounting seat 2; a roller shaft X7, a roller shaft X7 for assisting the movement of the rolling roller 0 is rotatably mounted on the mounting frame X6; a mounting frame 8, a mounting frame 8 is fixedly mounted on the left part of the mounting seat 2; a mounting ring 9, a mounting ring 9 is fixedly mounted in the mounting seat 2; a screw X10, a screw X10 is rotatably mounted between the mounting frame 8 and the mounting ring 9, the screw X10 is threadedly mounted on the mounting frame X6, and the screw X10 can control the mounting frame X6 to move up and down by rotating forward and reverse; a transmission member X11, a transmission member X11 is installed between the screws X10, and the transmission member X11 is a transmission pulley group, which is used to drive and control all the screws X10 to rotate synchronously; a drive X12, a drive X12 is fixedly mounted in the mounting seat 2, and the drive X12 is a motor, and the output shaft of the drive X12 is fixedly mounted on one of the screws X10, thereby providing driving power for the rotation of the screw X10.

[0063] See also Figure 1 , Figure 4 , Figure 5 and Figure 6 , further comprising: a support plate 13, on which the support plate 13 is slidably mounted; a mounting frame Y14, on which the mounting seat 2 is provided a mounting frame Y14; a roller shaft Y15, on which a roller shaft Y15 for assisting the movement of the roller 0 is rotatably mounted, the roller shaft Y15 being rotatably mounted with the support plate 13, see Figure 7 , the lowest position of the moving range of roller axis X7 is lower than roller axis Y15, and roller axis X7 and roller axis Y15 are staggered so that they can intersect when they move to intersection; screw Y16, a screw Y16 is rotatably installed in the mounting seat 2, and screw Y16 is threadedly installed with the mounting frame Y14, and the screw Y16 can control the left and right movement of the mounting frame Y14 by rotating forward and reversely; transmission member Y17, a transmission member Y17 is installed between the screws Y16, and the transmission member Y17 is a transmission pulley group, which is used to drive all the screws Y16 to rotate synchronously; drive Y18, a drive Y18 is fixedly installed on the mounting seat 2, and the drive Y18 is a motor, and the output shaft of the drive Y18 is fixedly installed with one of the screws Y16, thereby providing driving power for the rotation of the screw Y16.

[0064] Move the mounting seat 2 to the front side of the roll 0 that needs to be replaced, move the roll 0 forward from the rolling mill, and then transfer the roll 0 to the roll shaft X7. Then control the mounting frame X6 and the roll shaft X7 to move upward, first move the old roll 0 from the position to be replaced, then control the mounting frame Y14 and the roll shaft Y15 to move left, move the new roll 0 to the front side of the position to be replaced, and then load the new roll 0 onto the rolling mill; after completion, control the mounting frame X6 and the roll shaft X7 to move downward. During the process, the roll shaft X7 is misaligned with the roll shaft Y15, and the roll shaft X7 moves to the bottom of the roll shaft Y15. Therefore, the old roll 0 will be transferred to the roll shaft Y15, and then the roll shaft Y15 moves right, and the roll 0 is moved to the right side of the mounting seat 2, and the old roll 0 can be transferred away by a crane or other transfer devices. In the above process, by setting the step of replacing the new and old rollers 0, the new roller 0 can be installed directly without waiting for the old roller 0 to be transferred, which can improve the replacement efficiency of the roller 0 and make it unaffected by the arrangement and use of the transfer device.

[0065] See also Figure 1 and Figure 8 , and also includes: a mounting platform 19, on the front side of the mounting seat 2, a mounting platform 19 is fixedly installed; an electric rod X20, on which the electric rod X20 is fixedly installed; a connecting block X21, on the rod end of the electric rod X20, the connecting block X21 is fixedly installed, and the electric rod X20 controls the connecting block X21 to move forward and backward; a hook block 22, 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, so the electric rod X20 can assist the roller 0 to move forward and backward.

[0066] Since the rolling mill cannot control the movement of roll 0 after roll 0 is completely separated from the rolling mill, the rolling mill roll changing car structure of the stainless steel strip processing line assists the movement of roll 0 by setting an electric rod X20. After roll 0 is separated from the rolling mill, the rolling mill controls roll 0 to move to the middle position on the roll axis X7, and moves the new roll 0 to the loading mill, so that the new roll 0 can be controlled by the rolling mill to continue to be loaded into the rolling mill. Therefore, the rolling mill roll changing car structure of the stainless steel strip processing line can better control roll 0 for roll changing operations.

[0067] See also Figure 1 , Fig. 9 and Fig.10 , and also includes: a limit frame 23, the limit frame 23 is slidably installed on the left part of the mounting seat 2, and the limit frame 23 is inserted between the roller shafts X7; an electric rod Y24, the electric rod Y24 is fixedly installed in the mounting seat 2; a connecting block Y25, the rod end of the electric rod Y24 is fixedly installed with a connecting block Y25, the connecting block Y25 is fixedly installed with the limit frame 23, and the electric rod X20 controls the limit frame 23 to move left and right.

[0068] Before using the roller shaft Y15 to move the new roller 0 to the left, adjust the position of the limit frame 23 according to the size of the roller 0, so that the position of the new roller 0 when it is loaded into the rolling mill can be quickly and accurately located, so that the electric rod X20 can assist the roller 0 in being loaded onto the rolling mill more conveniently and smoothly.

[0069] See also Figure 1 , Fig.11 and Fig.12 , further comprising: a mounting frame Z26, a mounting frame Z26 is fixedly mounted on the left rear of the mounting seat 2, the mounting frame Z26 docking the rolling mill and the mounting seat 2; a roller shaft Z27, a roller shaft Z27 for assisting the movement of the rolling roller 0 is rotatably mounted on the mounting frame Z26; a guide rod 28, a guide rod 28 is fixedly mounted in the mounting frame Z26; a limit plate 29, a limit plate 29 is slidably mounted on the left and right sides of the mounting frame Z26, and the limit plate 29 is slidably mounted with the guide rod 28; an electric rod Z30, a bottom fixed portion of the mounting frame Z26 An electric rod Z30 is installed; a connecting block Z31, the rod end of the electric rod Z30 is fixedly installed with the connecting block Z31, and the connecting block Z31 is fixedly installed with one of the limit plates 29; a rack 32, the bottom of the two limit plates 29 are fixedly installed with a rack 32; a gear 33, the bottom of the mounting frame Z26 is rotatably installed with a gear 33, the gear 33 is meshed with the racks 32 on the two limit plates 29, so that the two limit plates 29 can move synchronously; a roller 34, the limit plate 29 is rotatably installed with a roller 34.

[0070] The rolling mill roll changing car structure of the stainless steel strip processing line uses a limit plate 29 to limit the moving position of the roll 0, which can prevent the roll 0 from being positionally shifted during the process of being loaded 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 car structure of the stainless steel strip processing line uses an electric rod Z30 to adjust the limit plate 29, and cooperates with the use of a gear 33 and a rack 32 to achieve the synchronization of the adjustment of the limit plate 29, so that the limit plate 29 can be synchronously adjusted with a fixed center line, so that the limit position of the limit plate 29 remains centered to prevent the limit position of the limit plate 29 from being adjusted offset.

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

[0072] S1. Place a new roller 0 on the roller shaft Y15. According to the size of the roller 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 rod X20 to move the hook block 22 backward, connect the hook block 22 with the old roll 0, and then control the electric rod X20 to move the hook block 22 forward, cooperate with the rolling mill to transfer the roll 0 to the roll shaft X7;

[0074] S3, release the connection between the old roller 0 and the hook block 22, control the drive X12 to move the roller shaft X7 and the old roller 0 on it upward, control the drive Y18 to move the new roller 0 to the left, so that the new roller 0 and the limit frame 23 are against each other, and the new roller 0 is connected to the new roller 0, control the electric rod X20 to move the new roller 0 backward, the limit frame 23 guides the new roller 0 to move, and the new roller 0 is loaded into the rolling mill;

[0075] S5, control drive X12 to move the old roller 0 downward, roller axis X7 passes through roller axis Y15, transfer the old roller 0 to roller axis Y15, control drive Y18 to move the old roller 0 to the right, and then use the transfer device to take away the old roller 0.

[0076] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. The rolling mill roll changing car structure of the stainless steel strip processing line is characterized by: include: A track (1), the track (1) being arranged on the roll-out side of the rolling mill; A mounting seat (2), the track (1) is slidably connected with the mounting seat (2), and the mounting seat (2) moves left and right; A mounting frame X (6), a mounting frame X (6) is provided on one side of the mounting seat (2), and the mounting frame X (6) moves up and down; A roller shaft X (7) is rotatably connected to the mounting frame X (6) and is used to assist the movement of the roller (0); A mounting plate (5), the other side of the mounting seat (2) being fixedly connected with the mounting plate (5); A support plate (13), the mounting plate (5) is slidably connected with the support plate (13); An installation frame Y (14), the installation seat (2) is provided with an installation frame Y (14), and the installation frame Y (14) moves left and right; A roller shaft Y (15) is rotatably connected to the mounting frame Y (14) and is used to assist the movement of the roller (0). The roller shaft Y (15) is rotatably connected to the support plate (13).

2. The rolling mill roll changing car structure of the stainless steel strip processing line according to claim 1 is characterized in that: The lowest position of the moving range of the roller axis X (7) is lower than the roller axis Y (15), and the roller axis X (7) and the roller axis Y (15) are staggered so that they can intersect each other when they move to an intersection.

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

4. The rolling mill roll changing car structure of the stainless steel strip processing line according to claim 3 is characterized in that: Also includes: A mounting frame (8), the mounting seat (2) being fixedly connected to the mounting frame (8); A mounting ring (9), the mounting seat (2) being fixedly connected with the mounting ring (9); The screw rod X (10) is rotatably connected between the mounting frame (8) and the mounting ring (9), and the screw rod X (10) is threadedly mounted on the mounting frame X (6) to control the mounting frame X (6) to move up and down; A transmission member X (11) is connected between the screw rods X (10) and a transmission member X (11) for controlling the synchronous rotation thereof; a drive X (12) is fixedly connected to the mounting seat (2), and an output end of the drive X (12) is fixedly connected to one of the screw rods X (10); The screw rod Y (16) is rotatably connected in the mounting seat (2), and the screw rod 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 member Y (17) is connected between the screw rods Y (16) for controlling their synchronous rotation; a drive Y (18) is fixedly connected to the mounting seat (2), and an output end of the drive Y (18) is fixedly connected to one of the screw rods Y (16).

5. The rolling mill roll changing car structure of the stainless steel strip processing line according to claim 4, characterized in that: Also includes: A mounting platform (19), the mounting seat (2) being fixedly connected to the mounting platform (19); An electric rod X (20), the mounting platform (19) is fixedly connected with the electric rod X (20); A connecting block X (21), to which the rod end of the electric rod X (20) is fixedly connected; A hook block (22) is fixedly connected to the connecting block X (21), and the roller (0) can be connected to the connecting block X (21) using the hook block (22) to control the roller (0) to move forward and backward.

6. The rolling mill roll changing car structure of the stainless steel strip processing line according to claim 5, characterized in that: Also includes: A limiting frame (23), the mounting seat (2) is slidably connected with a limiting frame (23) for limiting the position of the roller (0); An electric rod Y (24), the mounting seat (2) is fixedly connected with the electric rod Y (24); The connecting block Y (25) is fixedly connected to the rod end of the electric rod Y (24), and the connecting block Y (25) is fixedly connected to the limiting frame (23) to control and adjust the position of the limiting frame (23).

7. The rolling mill roll changing car structure of the stainless steel strip processing line according to claim 6, characterized in that: Also includes: A mounting frame Z (26), the mounting seat (2) being fixedly connected with the mounting frame Z (26) for docking the rolling mill and the mounting seat (2); A roller shaft Z (27) is rotatably connected to the mounting frame Z (26) and is used to assist the movement of the roller (0); A limit plate (29), the left and right sides of the mounting frame Z (26) are slidably connected to the limit plate (29); A roller (34) is rotatably connected to the limiting plate (29).

8. The rolling mill roll changing car structure of the stainless steel strip processing line according to claim 7, characterized in that: Also includes: An electric rod Z (30), the electric rod Z (30) is fixedly connected to the mounting frame Z (26); A connecting block Z (31), the rod end of the electric rod Z (30) is fixedly connected with the connecting block Z (31), and the connecting block Z (31) is fixedly connected to one of the limit plates (29) to control and adjust the position of the limit plate (29); A rack (32), the two limit plates (29) are both fixedly connected with a rack (32); A gear (33) is rotatably connected to the mounting frame Z (26), and the gear (33) is meshed with the racks (32) on the two limiting plates (29).

9. The roll changing method of the rolling mill roll changing vehicle structure of the stainless steel strip processing line according to claim 8, characterized in that: The specific steps include: S1. Place a new roller (0) on the roller shaft Y (15), and control the electric rod Y (24) to adjust the position of the limit frame (23) and control the electric rod Z (30) to adjust the position of the limit plate (29) according to the size of the roller (0); S2, control the electric rod X (20) to move the hook block (22) backwards, connect the hook block (22) with the old roller (0), and after completion, control the electric rod X (20) to move the hook block (22) forwards, transfer the roller (0) to the roller shaft X (7); S3, releasing the connection between the old roller (0) and the hook block (22), controlling the drive X (12) to move the roller shaft X (7) and the old roller (0) thereon upward, controlling the drive Y (18) to move the new roller (0) so that the new roller (0) abuts against the limit frame (23); S4, connecting the hook block (22) to the new roller (0), controlling the electric rod X (20) to move the new roller (0) backward, and the limit frame (23) guiding the new roller (0) to move, and installing the new roller (0) into the rolling mill; S5, control drive X (12) to move the old roller (0) downward, roller axis X (7) passes through roller axis Y (15), transfer the old roller (0) to roller axis Y (15), control drive Y (18) to move the old roller (0), and use the transfer device to take away the old roller (0).

Images