A six-roll mill roll system stabilization adjustment device

Abstract

This invention discloses a stabilizing adjustment device for a six-roll mill roll system, relating to the field of cold rolling production technology for strip steel. It includes a mill stand, a six-roll mechanism, a bending roll mechanism, and a stabilizing mechanism. The six-roll mechanism includes upper and lower support rolls, upper and lower intermediate rolls, and upper and lower work rolls. The upper and lower intermediate rolls have a predetermined offset relative to the other rolls. The bending roll mechanism includes intermediate roll bending blocks located at the inlet and outlet sides of the upper and lower intermediate rolls. The sum of the gaps between the bearing seats of the upper and lower intermediate rolls and the intermediate roll bending blocks at their respective inlet and outlet sides is twice the predetermined offset. The stabilizing mechanism includes stabilizing hydraulic cylinders located at the inlet operating side, inlet drive side, outlet operating side, and outlet drive side of the upper and lower intermediate rolls. The stabilizing hydraulic cylinders are connected to the intermediate roll bending blocks at corresponding positions, and the stroke distance of the stabilizing hydraulic cylinders is greater than twice the predetermined offset. This eliminates the gap between the bearing seats of the six-roll mill roll system and the mill stand window, and also achieves reversible and stable rolling in the six-roll mill.

Description

Technical Field

[0001] This invention relates to the field of cold rolling production technology for strip steel, and in particular to a roll system stabilization and adjustment device for a six-roll mill. Background Technology

[0002] The roll system of a six-high rolling mill consists of upper and lower work rolls, upper and lower intermediate rolls, and upper and lower support rolls. Typically, a certain gap is left between the bearing housings and the mill stand windows to facilitate the replacement of these roll bearings. To ensure the stability of the six-high cold rolling mill roll system during rolling, a fixed horizontal constraint is required.

[0003] To avoid the impact of tension fluctuations and changes in inertial forces caused by acceleration and deceleration on the stability of the roll system, the intermediate roll has an offset of 'e' relative to the support roll and work roll. In continuous rolling mills, this intermediate roll offset 'e' has a fixed direction because the strip direction remains constant. However, in reversible cold rolling, the strip direction changes back and forth. If the intermediate roll offset direction remains fixed, the different stress states on the work roll during the back-and-forth rolling process will cause the work roll to deform more significantly in one direction, which will inevitably affect the rolling quality. Summary of the Invention

[0004] This application provides a roll system stabilization adjustment device for a six-roll mill, which solves the technical problems of roll system stabilization and intermediate roll offset direction during single-stand cold rolling in the prior art.

[0005] This application provides a six-roll mill roll system stabilization adjustment device, including a frame, a six-roll mechanism, a bending roll mechanism, and a stabilizing mechanism. The six-roll mechanism is mounted on the frame and includes upper and lower support rolls, upper and lower intermediate rolls, upper and lower work rolls, and bearing seats corresponding to each roll. The upper and lower intermediate rolls have a set offset relative to the other rolls. The bending roll mechanism is mounted on the frame and includes intermediate roll bending blocks correspondingly disposed at the inlet and outlet sides of the upper and lower intermediate rolls. The sum of the gap values ​​between the bearing seats of the upper and lower intermediate rolls and the intermediate roll bending blocks at their respective inlet and outlet sides is twice the set offset. The stabilizing mechanism includes components located at the inlet operating side of the upper and lower intermediate rolls. The stabilizing hydraulic cylinders on the inlet drive side, outlet operation side, and outlet drive side are connected to the intermediate roller bending block at the corresponding positions. The stroke distance of the stabilizing hydraulic cylinder is greater than twice the set offset. Specifically, the cylinder rod of the stabilizing hydraulic cylinder located on the inlet side is close to the inlet side of the corresponding bearing seat, so that the outlet side of the bearing seat is close to the corresponding intermediate roller bending block and the intermediate roller bending block is close to the E-block fixed on the outlet side of the frame. Alternatively, the cylinder rod of the stabilizing hydraulic cylinder located on the outlet side is close to the outlet side of the corresponding bearing seat, so that the inlet side of the bearing seat is close to the corresponding intermediate roller bending block and the intermediate roller bending block is close to the E-block fixed on the inlet side of the frame.

[0006] In some embodiments, the six-roll mill roll system stabilization adjustment device further includes a support roll hydraulic cylinder, which is mounted on the frame and is used to move the upper support roll up and down.

[0007] In some embodiments, the bending roller mechanism includes bending roller blocks correspondingly disposed at the inlet and outlet sides of the upper and lower working rollers. The bending roller blocks are connected to positive and negative bending roller cylinders. The bending roller cylinders include functions for moving the corresponding working rollers up and down to assist in forming an intermediate roller reversing space for stabilizing the extension and retraction of the hydraulic cylinder.

[0008] In some embodiments, the end of the cylinder rod of the stabilizing hydraulic cylinder is provided with a wear-resistant top cover, and the cylinder rod is in close contact with the intermediate roller bending block through the wear-resistant top cover.

[0009] In some implementations, the cylinder rod and the wear-resistant top cover are detachably connected.

[0010] In some implementations, the stabilizing hydraulic cylinder consists of a single hydraulic cylinder or two or more hydraulic cylinders.

[0011] In some embodiments, the intermediate roll bending block is movably arranged in the frame in the direction from the operating side to the drive side.

[0012] In some implementations, with the intermediate roll offset direction remaining unchanged, the stabilizing hydraulic cylinder presses the intermediate roll bearing seat against the E-block of the frame according to the intermediate roll offset direction, so as to eliminate the gap between the intermediate roll bearing seat and the frame.

[0013] In some embodiments, the six-roll mill roll system stabilization adjustment device further includes changing the offset direction of the intermediate roll according to rolling requirements, and stabilizing the roll system by fixing the gap of the intermediate roll bearing seat.

[0014] In some embodiments, the upper support roller, upper intermediate roller, upper work roller, lower work roller, lower intermediate roller and lower support roller are arranged sequentially from top to bottom in the frame.

[0015] The beneficial effects of this application are as follows: It provides a stabilizing adjustment device for a six-roll mill roll system, including a frame, a six-roll mechanism, a bending roll mechanism, and a stabilizing mechanism. The sum of the gap values ​​between the bearing seats of the upper and lower intermediate rolls and the bending roll blocks of the intermediate rolls on their respective inlet and outlet sides is twice the set offset. The stabilizing mechanism includes stabilizing hydraulic cylinders located on the inlet operating side, inlet drive side, outlet operating side, and outlet drive side of the upper and lower intermediate rolls. The stabilizing hydraulic cylinders are connected to the bending roll blocks of the intermediate rolls at corresponding positions, and the stroke distance of the stabilizing hydraulic cylinders is greater than twice the set offset. This device uses the cylinder rod of the stabilizing hydraulic cylinder located on the inlet side to closely abut the inlet side of the corresponding bearing seat, so that the outlet of the bearing seat... The intermediate roll is pressed against the corresponding intermediate roll bending block, and the intermediate roll bending block is pressed against the E-block fixed on the exit side of the stand, or the cylinder rod of the stabilizing hydraulic cylinder located on the exit side is pressed against the exit side of the corresponding bearing seat, so that the inlet side of the bearing seat is pressed against the corresponding intermediate roll bending block, and the intermediate roll bending block is pressed against the E-block fixed on the inlet side of the stand; in this way, firstly, the gap between the bearing seat of the six-roll mill roll system and the stand window is eliminated, realizing the stable rolling function of the roll system; secondly, the offset direction of the intermediate roll, support roll and work roll can be changed. Thus, the offset direction of the intermediate roll is changed according to the running direction of the strip, realizing the reversible stable rolling of the six-roll mill. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention.

[0017] Figure 1 A front view of a six-roll mill roll system stabilization adjustment device provided in this application;

[0018] Figure 2 A partially enlarged view of a roll system stabilization adjustment device for a six-roll mill provided in this application;

[0019] Figure 3 This application provides a schematic diagram of the structure of the upper intermediate roll in a roll system stabilization and adjustment device for a six-roll mill.

[0020] Figure 4 This is a schematic diagram of the upper intermediate roll bending block in a six-roll mill roll system stabilization adjustment device provided in this application.

[0021] Figure labels: 1-Upper intermediate roll inlet operating side stabilizing hydraulic cylinder, 1-1-Cylinder rod, 1-2-Wear-resistant top cover, 2-Upper intermediate roll outlet operating side stabilizing hydraulic cylinder, 3-Lower intermediate roll inlet operating side stabilizing hydraulic cylinder, 4-Lower intermediate roll outlet operating side stabilizing hydraulic cylinder, 5-Upper intermediate roll inlet transmission side stabilizing hydraulic cylinder, 9-Support roll hydraulic cylinder, 10-Intermediate roll bending block, 10-1-Upper intermediate roll inlet side bending block, 10-2-Upper intermediate roll outlet side bending block, 10-3-Upper intermediate roll positive bending cylinder, 11-Work roll bending block, 12-Lower work roll, 13-Lower intermediate roll, 14-Lower support roll, 15-Type E block. Detailed Implementation

[0022] Please refer to Figure 1 This embodiment discloses a roll system stabilization and adjustment device for a six-roll mill, including a frame, a six-roll mechanism, a bending roll mechanism, and a stabilization mechanism. Both the six-roll mechanism and the bending roll mechanism are mounted on the frame. Figure 1 As shown, the six-roll mechanism includes upper and lower support rollers, upper and lower intermediate rollers and upper and lower working rollers, as well as bearing seats corresponding to each roller. The upper support roller, upper intermediate roller, upper working roller, lower working roller 12, lower intermediate roller 13 and lower support roller 14 are arranged sequentially from top to bottom.

[0023] Typically, a certain gap is left between the bearing housing and the frame window to facilitate the replacement of these roll bearing housings. In this embodiment, the upper intermediate roll has an offset relative to the support roll and the work roll; the magnitude of this offset is called the set offset. Similarly, the upper intermediate roll also has this set offset relative to the support roll and the work roll. Please refer to... Figure 1 and Figure 2 The offset setting is indicated by the symbol e.

[0024] In a six-roll mill, from Figure 1 Based on the schematic diagram of the strip rolling line and the angle of the strip direction, Figure 1 The left side is the inlet side, and the right side is the outlet side; in addition, the rolling mill also has an operating side and a drive side, among which... Figure 1 This is the graphic obtained from the operator's perspective; the operator is... Figure 1 Apart from the paper surface being perpendicular, the transmission side is on Figure 1 The paper is perpendicular to the inside.

[0025] The bending roller mechanism is mounted on the frame and includes an intermediate roller bending block 10. The intermediate roller bending block 10 is arranged corresponding to the upper intermediate roller and the lower intermediate roller, as shown in the reference. Figure 1 These are specifically installed at the inlet side of the upper intermediate roller, the outlet side of the upper intermediate roller, the inlet side of the lower intermediate roller, and the outlet side of the lower intermediate roller. For example... Figure 4The diagram illustrates the upper intermediate roll inlet side bending roll block 10-1 and the upper intermediate roll outlet side bending roll block 10-2, with the upper intermediate roll positive bending roll cylinder 10-3 installed inside the upper intermediate roll bending roll block.

[0026] In this embodiment, the bearing housings for the upper and lower intermediate rollers are defined. An example of the bearing housing for the upper intermediate roller is provided below. Figure 1 The diagram illustrates the intermediate roller bend block 10 on the inlet side and the outlet side of the upper intermediate roller. The bearing housing of the upper intermediate roller is located between these two intermediate roller bend blocks 10. A gap is formed between the bearing housing of the upper intermediate roller and the intermediate roller bend block 10 on the inlet side, and another gap is formed between the bearing housing of the upper intermediate roller and the intermediate roller bend block 10 on the outlet side. The sum of the gap values ​​of these two gaps is a constant value, which is set to be equal to twice the set offset value. Similarly, for the lower intermediate roller, the sum of the gap values ​​between the bearing housing of the lower intermediate roller and the intermediate roller bend blocks 10 on the inlet and outlet sides of the roller is twice the set offset.

[0027] The stabilizing mechanism includes stabilizing hydraulic cylinders. Stabilizing hydraulic cylinders are installed on the inlet operating side, inlet drive side, outlet operating side, and outlet drive side of the upper intermediate roller, and also on the inlet operating side, inlet drive side, outlet operating side, and outlet drive side of the lower intermediate roller. For example... Figure 1 The diagram illustrates the upper intermediate roll inlet operating side stabilizing hydraulic cylinder 1, the upper intermediate roll outlet operating side stabilizing hydraulic cylinder 2, the lower intermediate roll inlet operating side stabilizing hydraulic cylinder 3, and the lower intermediate roll outlet operating side stabilizing hydraulic cylinder 4.

[0028] In this embodiment, the intermediate roller bending block 10 can be divided into an inlet side and an outlet side, and the intermediate roller bending block 10 is arranged along the direction from the drive side to the operation side. The direction from the operation side to the drive side is a first direction, and the intermediate roller bending block 10 is movably disposed in the frame along the first direction. It is configured such that a stabilizing hydraulic cylinder is connected to an associated intermediate roller bending block 10, and the cylinder rod 1-1 of the stabilizing hydraulic cylinder can move back and forth relative to the bending block. Here, "associated" is interpreted as a corresponding position; for example, a stabilizing hydraulic cylinder located on the inlet operation side is connected to an intermediate roller bending block 10 located on the inlet side, and this connection position is close to the operation side.

[0029] In this embodiment, the stroke distance of the stabilizing hydraulic cylinder is... Figure 1 and Figure 2 The symbol 's' in the text indicates that 's' is set to be greater than twice the set offset value, i.e., 's' > 2e.

[0030] In some embodiments, the six-roll mill roll system stabilization adjustment device further includes a support roll hydraulic cylinder 9, please refer to... Figure 1The support roller hydraulic cylinder 9 is mounted on the frame. The support roller hydraulic cylinder 9 is used to move the upper support roller up and down, so that the upper support roller is separated from the upper intermediate roller. It provides space for the hydraulic cylinder to drive the intermediate roller to shift laterally, and can be described as part of the intermediate roller reversing space.

[0031] In some implementation methods, please refer to Figures 1 to 4 The bending roll mechanism includes a work roll bending block 11, which is located at the entrance side of the upper work roll, the exit side of the upper work roll, the entrance side of the lower work roll 12, and the exit side of the lower work roll 12. The work roll bending block 11 is connected to positive and negative bending roll cylinders. Besides being used in the formal production of cold-rolled strip steel, the positive and negative bending roll cylinders can also move the upper work roll downwards when stabilizing the six-roll mill system based on this device. This provides space for the stabilizing hydraulic cylinder to drive the intermediate roll to shift laterally, and can also be described as part of the intermediate roll reversing space, allowing the stabilizing hydraulic cylinder to perform telescopic movement.

[0032] In some implementation methods, please refer to Figure 2 A wear-resistant top cover 1-2 is connected to the end of the cylinder rod 1-1 of the stabilizing hydraulic cylinder. The cylinder rod 1-1 is in close contact with the intermediate roller bending block 10 through the wear-resistant top cover 1-2. The wear-resistant top cover 1-2 is used to protect the cylinder rod 1-1 itself. The wear-resistant top cover 1-2 and the cylinder rod 1-1 are connected in a detachable manner. By replacing the wear-resistant top cover 1-2, the long-term operation of this device can be maintained and the hydraulic cylinder itself can be protected.

[0033] The above description indicates that stabilizing hydraulic cylinders are provided on the inlet operation side, inlet drive side, outlet operation side, and outlet drive side of the upper and lower intermediate rollers. The stabilizing hydraulic cylinder on any side can be a single hydraulic cylinder, a combination of two hydraulic cylinders, or a combination of two or more hydraulic cylinders, and is not limited to a single hydraulic cylinder.

[0034] Based on the above-mentioned six-roll mill roll system stabilization and adjustment device, when the intermediate roll offset direction remains unchanged, the roll system is stabilized by fixing the intermediate roll bearing seat gap. According to the intermediate roll offset direction, the stabilizing hydraulic cylinder presses the intermediate roll bearing seat against the frame to eliminate the gap between the intermediate roll bearing seat and the frame.

[0035] The above intermediate rolls are illustrated by example. If the upper intermediate roll is biased towards the exit side, the upper intermediate roll inlet operation side stabilizing hydraulic cylinder 1 and the upper intermediate roll inlet transmission side stabilizing hydraulic cylinder 5 are extended, while the upper intermediate roll outlet operation side stabilizing hydraulic cylinder 2 and the upper intermediate roll outlet transmission side stabilizing hydraulic cylinder are in a retracted state. The upper intermediate roll inlet operation side stabilizing hydraulic cylinder 1 and the upper intermediate roll inlet transmission side stabilizing hydraulic cylinder 5 maintain synchronous operation. The wear-resistant top cover 1-2 at the front end of the hydraulic cylinder rod 1-1 is close to the inlet side of the bearing seats at both ends of the upper intermediate roll. The outlet side of the bearing seats at both ends of the upper intermediate roll is close to the upper intermediate roll outlet side bending roll block 10-2. The upper intermediate roll outlet side bending roll block 10-2 is close to the E-type block 15 fixed on the mill stand. Finally, the intermediate roll bearing seats are fixed in a fixed working state when the strip is rolled in the direction of the strip. The above intermediate rolls are explained in terms of distance. The lower intermediate roll 13 works on the same principle as the upper intermediate roll.

[0036] In the above description, if the intermediate roller offsets in the opposite direction, the action is reversed.

[0037] Based on the above-mentioned six-roll mill roll system stabilization and adjustment device, when the offset direction of the intermediate roll is changed according to the rolling requirements, the roll system is stabilized at the same time by fixing the gap of the intermediate roll bearing seat.

[0038] Taking the initial bias of the intermediate roll towards the strip inlet side as an example, when the intermediate roll deviates in this direction, the stabilizing hydraulic cylinder presses the intermediate roll bearing seat against the frame, eliminating the gap between the intermediate roll bearing seat and the frame.

[0039] When the intermediate roll deflects and reverses the direction of the strip towards the exit, the roll system opens. Specifically, the support roll hydraulic cylinder 9 moves upward, causing the upper support roll to move upward, and the upper work roll positive bending cylinder moves downward, causing the upper work roll to move downward, creating space for the intermediate roll to reverse. Then, the upper intermediate roll inlet operating side stabilizing hydraulic cylinder 1 and the upper intermediate roll inlet transmission side stabilizing hydraulic cylinder 5 retract, pressing the roll system together. The upper intermediate roll outlet operating side stabilizing hydraulic cylinder 2 and the upper intermediate roll outlet transmission side stabilizing hydraulic cylinder are in the extended state. The upper intermediate roll inlet operating side stabilizing hydraulic cylinder 1 and the upper intermediate roll inlet transmission side stabilizing hydraulic cylinder 5 operate synchronously, and the upper intermediate roll outlet operating side stabilizing hydraulic cylinder 2 and the upper intermediate roll outlet transmission side stabilizing hydraulic cylinder are in the extended state. The moving-side stabilizing hydraulic cylinder maintains synchronous operation. The bearing seats at both ends of the intermediate roll are adjusted from a state where the wear-resistant cover at the front end of the inlet-side stabilizing hydraulic cylinder lever is close to the inlet side of the bearing seats at both ends of the upper intermediate roll, the outlet side of the bearing seats at both ends of the upper intermediate roll is close to the outlet bending roll block, and the outlet bending roll block is close to the E-block 15 fixed on the mill stand, to a state where the wear-resistant cover at the front end of the outlet-side stabilizing hydraulic cylinder lever is close to the outlet side of the bearing seats at both ends of the upper intermediate roll, the inlet side of the bearing seats at both ends of the upper intermediate roll is close to the outlet bending roll block, and the inlet bending roll block is close to the E-block 15 fixed on the mill stand. This ultimately achieves the fixation of the intermediate roll bearing seats in the rolling state in the direction of strip movement.

[0040] The above-mentioned intermediate rollers are used as examples. The working principle of the lower intermediate roller 13 is the same as that of the upper intermediate roller.

[0041] In summary, in the six-roll mill roll system stabilization adjustment device provided in this embodiment, under the combined action of the stabilizing hydraulic cylinder and other structures, the mill is adjusted to the following: the cylinder rod 1-1 of the stabilizing hydraulic cylinder located on the inlet side is close to the inlet side of the corresponding bearing seat, so that the outlet side of the bearing seat is close to the corresponding intermediate roll bending block 10 and the intermediate roll bending block 10 is close to the E-block 15 fixed on the outlet side of the frame; or the mill is adjusted to the following: the cylinder rod 1-1 of the stabilizing hydraulic cylinder located on the outlet side is close to the outlet side of the corresponding bearing seat, so that the inlet side of the bearing seat is close to the corresponding intermediate roll bending block 10 and the intermediate roll bending block 10 is close to the E-block 15 fixed on the inlet side of the frame.

[0042] This embodiment achieves two main benefits: first, it eliminates the gap between the roll bearing housing and the stand window of a six-high rolling mill, enabling stable rolling of the roll system; second, it allows for the transformation of the offset direction of the intermediate roll, support roll, and work roll. By changing the offset direction of the intermediate roll according to the running direction of the strip, reversible and stable rolling of the six-high rolling mill is realized. This solves both the problem of stable rolling of the roll system in a six-high rolling mill and the problem of the offset direction of the intermediate roll during different rolling passes in single-stand cold rolling.

[0043] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the invention.

[0044] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A roll system stabilization and adjustment device for a six-roll mill, characterized in that, include: frame; A six-roll mechanism is installed on the frame and includes upper and lower support rollers, upper and lower intermediate rollers and upper and lower working rollers, as well as bearing seats corresponding to each roller. The upper and lower intermediate rollers have a set offset relative to the other rollers. The bending roller mechanism, installed on the frame, includes intermediate roller bending blocks correspondingly arranged at the inlet and outlet sides of the upper and lower intermediate rollers. The sum of the gap values ​​between the bearing seats of the upper and lower intermediate rollers and the intermediate roller bending blocks at their respective inlet and outlet sides is twice the set offset. The stabilizing mechanism includes stabilizing hydraulic cylinders located on the inlet operation side, inlet drive side, outlet operation side, and outlet drive side of the upper and lower intermediate rollers. The stabilizing hydraulic cylinders are connected to the intermediate roller bending blocks at corresponding positions, and the stroke distance of the stabilizing hydraulic cylinders is greater than twice the set offset. The cylinder rod of the stabilizing hydraulic cylinder located on the inlet side is close to the inlet side of the corresponding bearing seat, so that the outlet side of the bearing seat is close to the corresponding intermediate roller bending block and the intermediate roller bending block is close to the E-type block fixed on the outlet side of the frame. Alternatively, the cylinder rod of the stabilizing hydraulic cylinder located on the outlet side is close to the outlet side of the corresponding bearing housing, so that the inlet side of the bearing housing is close to the corresponding intermediate roller bend block and the intermediate roller bend block is close to the E-block fixed on the inlet side of the frame. The six-roll mill roll system stabilization and adjustment device also includes a support roll hydraulic cylinder, which is mounted on the frame and is used to move the upper support roll up and down. The bending roller mechanism includes bending roller blocks for the working rollers, which are correspondingly arranged at the inlet and outlet sides of the upper and lower working rollers. The bending roller blocks are connected to positive and negative bending roller cylinders. The bending roller cylinders are used to move the corresponding working rollers up and down to assist in forming an intermediate roller reversing space for the extension and retraction of the stabilizing hydraulic cylinder. The cylinder rod end of the stabilizing hydraulic cylinder is equipped with a wear-resistant top cover, and the cylinder rod is in close contact with the intermediate roller bending block through the wear-resistant top cover; The cylinder rod is detachably connected to the wear-resistant top cover.

2. The six-roll mill roll system stabilization and adjustment device as described in claim 1, characterized in that, The stabilizing hydraulic cylinder consists of a single hydraulic cylinder or two or more hydraulic cylinders.

3. The six-roll mill roll system stabilization and adjustment device as described in claim 1, characterized in that, The intermediate roller bending block is movably arranged in the frame in the direction from the operating side to the transmission side.

4. The six-roll mill roll system stabilization and adjustment device as described in any one of claims 1-3, characterized in that, With the intermediate roll offset direction remaining unchanged, the stabilizing hydraulic cylinder presses the intermediate roll bearing seat against the E-block of the frame according to the intermediate roll offset direction, so as to eliminate the gap between the intermediate roll bearing seat and the frame.

5. The six-roll mill roll system stabilization and adjustment device as described in any one of claims 1-3, characterized in that, The six-roll mill roll system stabilization and adjustment device also includes changing the offset direction of the intermediate roll according to rolling needs, and stabilizing the roll system by fixing the gap of the intermediate roll bearing seat.

6. The six-roll mill roll system stabilization and adjustment device as described in claim 1, characterized in that, In the frame, the upper support roller, upper intermediate roller, upper working roller, lower working roller, lower intermediate roller and lower support roller are arranged in sequence from top to bottom.

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