JP3073604B2 - Work roll horizontal support device and rolling method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work roll horizontal support device for a rolling mill and a rolling method using the work roll horizontal support device, and more particularly to a change in a work roll diameter, a support roll diameter, and a support bearing diameter. The present invention relates to a work roll horizontal support device capable of coping with a change in the work roll offset amount, and a rolling method using the work roll horizontal support device.

[0002]

2. Description of the Related Art When a hard material or a difficult-to-work material is rolled, a rolling mill is used in which the diameter of a work roll is reduced and the rolling load is reduced. In this type of rolling mill, it is necessary to prevent the small-diameter work roll from bending in the horizontal direction, and for this purpose, a work roll horizontal support device is used.

[0003] The work roll horizontal support device is generally
The work roll includes a support roll that supports a horizontal force acting on the work roll in contact with the work roll, a support bearing that is arranged in a staggered manner in the axial direction to support the support roll, and a support frame that holds the support bearing. As described in Japanese Patent Application Laid-Open No. 61-186112, the support frame can usually be retreated in the rolling direction (horizontal direction) together with the support roll and the support bearing when the work roll is replaced. Also, JP-A-1-180709
As described in Japanese Patent Laid-Open Publication No. H10 (1995), a support frame can be linearly moved together with a support roll and a support bearing preferably at a gradient of about 50 degrees with respect to the rolling direction so as to be able to cope with a large change in the work roll diameter. is there.

[0004]

Problems to be Solved by the Invention
In the related art described in No. 12, the support roll and the support bearing are retracted when the work roll is replaced, thereby facilitating the replacement work of the work roll. However, since the support roll and the support bearing move in the horizontal direction, when the work roll is moved in response to a large change in the diameter of the work roll, a support line in which the straight line connecting the axis of the work roll and the axis of the support roll is staggered. It does not pass through substantially the center between the axes of the bearings, so that the work roll and the support roll cannot be stably supported.

In the prior art described in JP-A-1-180709, the support frame can be linearly moved together with the support rolls and the support bearings at a gradient of about 50 degrees with respect to the rolling direction. When the robot is moved in response to a sudden change, the straight line connecting the axis of the work roll and the axis of the support roll passes almost in the center between the axes of the staggered support bearings, stabilizing the work roll and the support roll. Can be supported. However, in this conventional technology, it is possible to cope only with a change in the work roll diameter, and when moving with respect to a change in the offset amount of the work roll and a change in the diameter of another rolling roll, the center of the work roll and the support roll are moved. The straight line connecting the shaft center does not pass through substantially the center between the axes of the support bearings arranged in a staggered manner, so that the work roll and the support roll cannot be stably supported.

An object of the present invention is to stably support a work roll and a support roll against a change in the work roll diameter, a change in the offset amount of the work roll, and a change in other rolling rolls. An object of the present invention is to provide a work roll horizontal support device and a rolling method using the work roll horizontal support device.

[0007]

According to the present invention, there is provided a support roll for supporting a horizontal force acting on a work roll in contact with the work roll, and the support rolls arranged in a staggered manner in an axial direction. In a horizontal support device for a work roll of a rolling mill provided with a support bearing for supporting the support roll, a change in the work roll diameter, a change in the support roll diameter, a change in the support bearing diameter, and a change in the work roll offset amount. For
Motion control means for moving the support frame so that a straight line connecting the axis of the work roll and the axis of the support roll passes substantially in the center between the axes of the support bearings arranged in a staggered manner.
Wherein the movement control means includes a linear movement of the support frame.
Linear movement control means enabling movement, and the support frame
And a turning control means for enabling the turning movement of the work roll.

[0008]

Preferably, the linear movement control means includes a guide frame having a linear motion bearing for guiding the support frame linearly, and a first drive means for moving the support frame along the linear motion bearing. And the turning control means preferably includes: a turning fulcrum that supports the guide frame to be able to turn on the rolling mill housing; and a second driving means that turns the guide frame about the turning fulcrum. Have.

The linear movement control means has a guide frame provided with a linear motion bearing for guiding the support frame linearly, and first drive means for moving the support frame along the linear motion bearing. The swing control means is configured as a part of the support frame and guided by the linear motion bearing, and a swing support frame configured as a remaining part of the support frame and holding the support bearing. And a turning fulcrum for pivotally supporting the turning support frame on the linear movement supporting frame, and a second driving means for turning the turning support frame about the turning fulcrum.

In the above-mentioned work roll horizontal support device, it is preferable that one drive source and a power from the drive source be determined by a power of the first drive means and a power of the second drive means. And a clutch means for connecting the first drive means and the second drive means.

In order to achieve the above object, the present invention provides
If the horizontal force acting on the work roll
Support roll, which is arranged in zigzag in the axial direction before
A support bearing that supports the support roll, this support
Rolling mill with support frame to hold bearings
In the horizontal support device for the work roll, the work roll
Of diameter, support roll diameter and support bearing diameter
Change of the work roll offset
Straight lines connecting the axis and the axis of the support roll are staggered.
Through the center between the axes of the support bearings
Motion control means for moving the support frame, a thrust bearing for supporting an axial thrust of the work roll, and a follow-up drive means for moving the thrust bearing in accordance with a change in the offset amount of the work roll. In this case, the work roll horizontal support device includes one drive source,
A deceleration means for dividing the power from the drive source into a power of the first drive means, a power of the second drive means, and a power of the follow-up drive means at a predetermined ratio; It is preferable to include a clutch means for connecting the second driving means and the following driving means .

In order to achieve the above object, the present invention provides
If the horizontal force acting on the work roll
Support roll, which is arranged in zigzag in the axial direction before
A support bearing that supports the support roll, this support
Rolling mill with support frame to hold bearings
A work roll horizontal support device, wherein the work roll
Of diameter, support roll diameter and support bearing diameter
Change of the work roll offset
Straight lines connecting the axis and the axis of the support roll are staggered.
Through the center between the axes of the support bearings
In a method of rolling a plate material using a work roll horizontal support device including a motion control means for moving the support frame, the work roll is arranged to be displaced in a rolling direction with respect to an axis of a roll supporting the roll, When rolling in the forward direction, the horizontal force acting on the work roll is supported by the work roll horizontal support device, and when rolling in the reverse direction, the rolling direction is alternately switched by supporting the horizontal force of the work roll by the rolling roll. A rolling method characterized by performing reversible rolling is provided.

According to the present invention, in order to attain the above object, a horizontal force acting on a work roll is applied to the work roll.
Support roll, which is arranged in zigzag in the axial direction before
A support bearing that supports the support roll, this support
Rolling mill with support frame to hold bearings
A work roll horizontal support device, wherein the work roll
Of diameter, support roll diameter and support bearing diameter
Change of the work roll offset
Straight lines connecting the axis and the axis of the support roll are staggered.
Through the center between the axes of the support bearings
In a method of rolling a plate material using a work roll horizontal support device including a motion control means for moving the support frame, a pair of upper and lower work rolls opposed to each other with the plate material interposed therebetween are vertically displaced in the rolling direction, and A rolling method is provided in which the shape of a sheet material is corrected by making the offset amount of a work roll different from the offset amount of a lower work roll.

[0015]

In the work roll horizontal support device of the present invention constructed as described above, the motion control means controls the support frame to change the work roll diameter, the support roll diameter, the change in the support bearing diameter, and the change in the offset amount of the work roll. On the other hand, by moving the straight line connecting the axis of the work roll and the axis of the support roll almost always through the center between the axes of the staggered support bearings, the work roll diameter, the support roll diameter, and the support bearing diameter are moved. Irrespective of the change of the work roll and the offset amount of the work roll, the direction of the load acting on the support roll via the work roll always passes through almost the center between the axes of the staggered support bearings. And the support roll is stably supported.

[0016] By combining the motion control means with the linear movement control means enabling the linear movement of the supporting frame and the turning control means enabling the turning movement of the support frame, a combination of the linear movement and the turning movement is provided. The support frame is moved with, and the line connecting the axis of the work roll and the axis of the support roll is always staggered against changes in the work roll diameter, support roll diameter, support bearing diameter, and changes in the work roll offset. Pass through substantially the center between the axes of the supported bearings.

A speed reducer for distributing the power from one drive source to a first drive means of the linear movement control means and a second drive means of the turning control means at a predetermined ratio; a first drive means; And a clutch means for connecting the first drive means and the second drive means when the offset amount of the work roll is changed, thereby connecting the first drive means and the second drive means to each other. At the time of change, the clutch is turned off and only the first drive means is driven, whereby any change in the work roll diameter, the support roll diameter, the support bearing diameter, and the work roll offset amount can be performed with a single drive source. And the equipment can be simplified.

By providing the thrust bearing for supporting the thrust in the axial direction of the work roll and the third drive means for moving the thrust bearing following a change in the offset amount of the work roll, the axial center of the work roll is always provided. The axial center of the thrust bearing is located on substantially the same plane as that of the thrust bearing, and the work roll is also stably supported on the thrust bearing.

By supporting the work roll with the work roll horizontal support device, it is possible to increase the offset amount of the work roll and to reliably support the horizontal force in the anti-rolling direction by the rolling roll contacting the work roll. In addition, reversible rolling can be performed by alternately switching the rolling direction.

The shape of the sheet material is corrected by correcting the herringbone of the rolled material by moving the axis of the upper and lower work rolls in the rolling direction separately from the movement of the horizontal support device for the upper and lower work rolls. can do.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show a first embodiment of the present invention.
In FIG. 1, the rolling mill according to the present embodiment is a six-high rolling mill having a work roll 1, an intermediate roll 2, and a reinforcing roll 3. The work roll 1 is arranged to be offset by a predetermined amount X in the direction of the pass line L of the rolled material with respect to the axial positions of the intermediate roll 2 and the reinforcing roll 3. Most of the rolling load generated between the upper and lower work rolls 1 is transmitted vertically to the reinforcing rolls 3 via the intermediate rolls 2, and is supported by the rolling mill housing 4. Since the work roll 1 has a small diameter, it is necessary to prevent bending in the horizontal direction. For this purpose, the work roll horizontal support device 50 of the present invention is provided for each work roll 1. In FIG. 1,
For ease of explanation, a case where the work roll 1 has a small diameter is shown above the pass line L, and a case where the work roll 1 has a large diameter and the offset amount X with respect to the intermediate roll 2 has changed below the pass line L.

1 and 2, a work roll horizontal support device 50 includes a support roll 5 for supporting a horizontal force acting on the work roll 1 in contact with the work roll 1, and a support bearing 6 for supporting the support roll 5. And a support frame 7 for holding the support bearing 6.
The support bearing 6 is composed of a plurality of divided roller elements arranged in a staggered manner in the axial direction, and the support roll 5 is pushed and supported in a valley between the roller elements in the staggered arrangement. Details of the structure of the support bearing 6 are described in Japanese Patent Application No. 61-185.
No. 121. The support roll 5 has its both ends held by a support frame 7 by a spring (not shown),
Both ends of the support frame 7 are also supported by the rolling mill housing 4 by springs (not shown).

The work roll horizontal support device 50 also controls the axis of the work roll 1 and the support roll 5 against changes in the work roll diameter, the support roll diameter, the support bearing diameter, and the work roll offset amount. Motion control means is provided for moving the support frame 7 so that a straight line connecting to the axis passes through substantially the center between the axes of the support bearings 6 arranged in a staggered manner. This motion control means is provided by the support frame 7.
And a turning control device that enables the supporting frame 7 to make a turning movement.

The linear movement control device includes a guide rail 13 provided on both sides of the support frame 7 and the guide rail 1.
And a linear drive device 9 for moving the support frame 7 along the linear motion bearing 11. The turning control device rolls the guide frame 14. A fulcrum 10 pivotally supported by the machine housing 4, and a slewing drive 12 for slewing the guide frame 14 about the fulcrum 10.
And

The linear drive 9 includes an input rotary shaft 60, a worm gear 61 that rotates integrally with the input rotary shaft 60, a pinion 62 that meshes with the worm gear 61, and a pinion 62.
An output rotary shaft 63 that rotates integrally with the output rotary shaft 63, a male screw 64 cut on the outer circumference of the output rotary shaft 63, a nut 66 with a female screw 65 engaged with the male screw 64, and a tip mounted on the output rotary shaft 63. and the spherical bearing 67, the rotary input shaft 60,
It has an output rotating shaft 63 and a frame 68 that supports a nut 66 and is fixed to the rolling mill housing 4. The output rotary shaft 63 is attached to the pass line L with an inclination of approximately 50 °. A spherical surface 69 is provided at the tip of the spherical bearing 67.
Is formed, and a spherical surface 7 formed at the rear end of the support frame 7 is formed.
0 and spherical contact. When the input rotary shaft 60 is driven to rotate, the output rotary shaft 63 rotates, and this rotation is converted into an axial linear motion of the output rotary shaft by the engagement between the male screw 64 and the female screw 65. Due to the linear motion of the output rotary shaft 63, the support frame 7 is linearly moved along the linear motion bearing 11 by or against the force of the spring supporting the frame.

The turning drive 12 includes an input rotary shaft 72,
The rotational movement of the output shaft 75 and the input rotary shaft 72 is
A worm gear mechanism 73 that converts the linear motion of the output shaft 75 into a linear motion of the output shaft 75 and a link mechanism that includes levers 76 and 77 that convert the linear motion of the output shaft 75 around the fulcrum 10 of the guide frame 14. The mechanism 73 is fixed to the rolling mill housing 4. When the input rotary shaft 72 is driven to rotate, the output shaft 75 linearly moves, and the guide frame 14 is turned around the turning fulcrum 10. At this time, the displacement between the support frame 7 and the linear driving device 9 is changed to the spherical surface 6.
It is absorbed by 9,70.

The work roll horizontal support device 50
Further has a thrust bearing mechanism for supporting the thrust of the work roll 1 in the axial direction. This thrust bearing mechanism
As shown in FIGS. 3 and 4, a disk-shaped thrust bearing 15 having an outer peripheral surface that supports the end surface of the work roll 1, and a project block 4 a provided in the rolling mill housing 4.
A bearing box 16 is inserted with a predetermined gap therebetween and rotatably accommodates the thrust bearing 15, and a positioning drive device 17 that moves the bearing box 16 in accordance with a change in the offset amount X of the work roll 1. I have.

The thrust bearing 15 is a large-diameter work roll 1a.
And two-stage outer peripheral surfaces having different diameters so that appropriate support can be performed in response to a change in the diameter of the work roll 1b having a small diameter. The bearing box 16 is provided with a cover 81 which can be opened and closed by a hinge 80 so that the thrust bearing 15 can be replaced. In addition, the bearing housing 16 is provided in the bearing housing 16 at the time of roll replacement.
An operating rod 82 for opening and closing is connected, and the operating rod 82 is driven by an actuator (not shown).

The positioning drive device 17 includes an input rotary shaft 83
An output shaft 84, a worm gear mechanism 85 that converts the rotational motion of the input rotary shaft 83 into a linear motion of the output shaft 84, and a connecting rod 86 connected to the output shaft 84. The worm gear mechanism 85 The bearing box 16 is attached to the rolling mill housing 4, and is connected to the connecting rod 86 so as to be openable and closable at the pivot point 10 . When the input rotary shaft 83 is rotationally driven, the output shaft 84 moves linearly, and moves the bearing housing 16 in the horizontal direction according to the change in the offset amount X of the work roll 1.

In this embodiment configured as described above,
When the diameter of the work roll 1 or the like is changed, the support frame 7 is linearly moved at a gradient of about 50 ° with respect to the pass line L by driving the linear drive device 9, whereby the support frame 7 is described in JP-A-1-180709. Thus, even if the diameter of the work roll changes, the straight line connecting the axis of the work roll 1 and the axis of the support roll 5 passes through substantially the center between the axes of the support bearings 6 arranged in a staggered manner. And the support roll 5 is stably supported.

When the offset amount X of the work roll 1 with respect to the intermediate roll 2 is changed, the linear drive device 9 and the turning drive device 12 are driven to move the support frame 7 in a combination of linear movement and turning. A straight line connecting the axis of the work roll 1 and the axis of the support roll 5 passes through substantially the center between the axes of the staggered support bearings 6, and the work roll 1 and the support roll 5 are stably supported. Also, at this time, by simultaneously driving the positioning drive device 17, the bearing box 16 is moved in the horizontal direction in accordance with the change in the offset amount X of the work roll 1, and is always substantially coplanar with the axis of the work roll 1. So that the axial center of the thrust bearing 15 is
, The work roll 1 is stably supported.

Next, one embodiment of the method of using the work roll horizontal support device 50 will be described with reference to FIG. In FIG. 5, the horizontal axis represents the amount of linear movement of the support frame 7, the vertical axis represents the amount of rotation of the support frame 7, and the straight lines 18 to 22 represent the work relative to the change in the work roll diameter, the support roll diameter, and the support bearing diameter. This is a characteristic line that enables a straight line connecting the roll axis and the support roll axis to pass substantially at the center between the axes of the staggered support bearings 6. This characteristic line 18-2
2 are determined in advance, and these characteristic lines 18 to 22 are determined according to the work roll diameter, the support roll diameter, and the support bearing diameter.
Is selected, and the amount of linear movement of the support frame 7 and the amount of rotation of the support frame 7 are controlled in accordance with the characteristic lines, so that the straight line connecting the work roll axis and the support roll axis is staggered. 6, the work roll 1 and the support roll 5 can be stably held.

The above-mentioned linear drive device 9 and turning drive device 12
An embodiment of the position adjusting device for driving the positioning drive device 17 will be described with reference to FIG. In FIG. 6, the position adjusting device of this embodiment has a common drive source 25A,
A drive shaft 25 is connected to connecting shafts 26, 30 via a speed reducer 31.
, And the connection shaft 30 is connected to the input rotation shaft 60 of the linear drive device 9. The connection shaft 26 is connected to a connection shaft 27 via a clutch 23, and the connection shaft 27 is connected to connection shafts 28 and 29 via a speed reducer 24. Connecting shaft 28
Is connected to the input rotation shaft 83 of the positioning drive device 17,
The connection shaft 29 is connected to an input rotation shaft 72 of the turning drive device 12.

The disengage the clutch 23 at the time of changing the diameter of such work rolls 1, the power transmitting only linear drive 9, One clutch 23 at the time of change of the offset amount of the work roll 1
Without transmitting the power to the connecting shaft 27, the speed reducer 31 and the speed reducer 2
4, the power is distributed to the input rotation shaft 60 of the linear drive device 9, the input rotation shaft 72 of the turning drive device 12, and the input rotation shaft 83 of the positioning drive device 17. Accordingly, the three drive units of the work roll horizontal support device 50 can be driven by a single position adjusting device including a single drive source 25A. The position adjusting device may be a common position adjusting device for simultaneously moving the upper and lower work roll horizontal support devices 50, but preferably, the upper and lower work roll horizontal support devices 50 are separately moved. Each one of the position adjusting devices is installed, thereby, as described later,
Rolling in which the axis is shifted in the rolling direction by the upper and lower work rolls can be performed.

Next, an embodiment of a rolling method in a rolling mill provided with a work roll horizontal support device 50 will be described.

The rolling mill provided with the work roll horizontal support device 50 can cope with the change in the offset amount X of the work roll 1 as described above. Can reliably support the force in the anti-rolling direction acting on the work roll by the intermediate roll 2. Therefore, utilizing this fact, the horizontal force acting on the work roll 1 is supported by the work roll horizontal support device 50 during forward rolling, and the horizontal force of the work roll 1 is supported by the intermediate roll 2 during reverse rolling. By doing so, it is possible to perform reversible rolling by switching the rolling direction alternately.

When one upper and lower position adjusting device is installed so as to separate the movement of the upper and lower work roll horizontal support devices 50 as described above, the upper and lower work rolls 1 are shifted vertically in the rolling direction. By disposing the offset amount of the upper work roll 1 and the offset amount of the lower work roll 1 so as to correct the herringbone of the rolled material,
The shape of the plate can be modified.

As described above, according to this embodiment, the direction of the load acting on the support roll via the work roll is the change in the work roll diameter, the support roll diameter, the change in the support bearing diameter, and the change in the offset amount of the work roll. Irrespective of this, it is possible to always pass through almost the center between the axes of the support bearings arranged in a staggered manner, so that the working roll diameter can be used widely without replacing the work roll horizontal support device, and furthermore, Even if the offset amount of the work roll is changed, the work roll and the support roll can be stably held. In addition, the life of the support bearing can be extended by reducing the offset amount.

Further, the offset amount of the work roll can be arbitrarily set, and the rolling direction can be alternately switched to perform reversible rolling.

Further, the linear motion and the turning motion of the work roll horizontal support device are driven by a single position adjusting device comprising a speed reducer having a certain reduction ratio and a clutch from a single drive source. It can be simplified, and furthermore, by separating the movement of the vertical work roll horizontal direction support device and shifting the axis of the upper and lower work rolls in the rolling direction, the herringbone of the rolled material is corrected, and the shape of the plate material is modified. Can be modified.

Another embodiment of the present invention will be described with reference to FIG. In the figure, the same reference numerals are given to members equivalent to the members shown in FIG. In this embodiment, the structure of the turning control device is shown in FIG.
Is different from the embodiment.

In FIG. 7, the turning control device of the present embodiment includes a linear moving support frame 7a provided with a guide rail 13 and guided by a linear motion bearing 11 of a guide frame 14, and a turning support frame holding the support bearing 6. 7b, a turning fulcrum 10A for pivotally supporting the turning support frame 7b on the linear movement supporting frame 7a, and a turning drive device 12A for turning the turning support frame 7b about the turning fulcrum 10A.

The turning drive device 12A includes an input rotary shaft 92.
A worm gear mechanism 93 that converts the rotational motion of the output shaft 95, the input rotary shaft 92 into a linear motion of the output shaft 95, and converts the linear motion of the output shaft 95 into a pivot point of the pivot support frame 7b.
Lever 96, 9 for converting into a swiveling motion about 10A
7, a worm gear mechanism 93
Are fixed to the linear movement support frame 7a. When the input rotation shaft 92 is driven to rotate, the output shaft 95 linearly moves,
The turning support frame 7b is turned around the turning fulcrum 10A . At this time, the positional shift between the linear movement support frame 7 and the linear driving device 9 is the same as in the first embodiment, and the spherical surface 69,
Absorbed by 70.

When the offset amount X of the work roll 1 with respect to the intermediate roll 2 is changed, the turning support frame 7b is moved by a combination of the linear movement and the turning by driving the linear driving device 9 and the turning driving device 12A. The straight line connecting the axis of the work roll 1 and the axis of the support roll 5 passes through substantially the center between the axes of the staggered support bearings 6, so that the work roll 1 and the support roll 5 are stably supported. Therefore, according to this embodiment, the same effect as that of the first embodiment can be obtained.

[0045]

According to the present invention, the direction of the load acting on the support roll via the work roll is independent of the change in the work roll diameter, the support roll diameter, the support bearing diameter, and the offset amount of the work roll. Since it is possible to always pass through the center between the axes of the staggered support bearings, it is possible to widen the working range of the work roll diameter without replacing the work roll horizontal support device, and furthermore, offset the work roll. Even if the amount is changed, the work roll and the support roll can be stably held. In addition, the life of the support bearing can be extended by reducing the offset amount.

Also, since the offset amount of the work roll can be increased, it is possible to perform reversible rolling by alternately switching the rolling direction.

Further, the movement of the top and bottom work roll horizontal support apparatus separately, by the shift the axis of the upper and lower work rolls in the rolling direction, such as to modify the herringbone of the rolled material, the shape of the plate Can be modified.

[Brief description of the drawings]

FIG. 1 is a side view of a work roll horizontal support device according to an embodiment of the present invention.

FIG. 2 is a top view of the work roll horizontal support device shown in FIG.

FIG. 3 is an enlarged view of a thrust bearing portion of the work roll horizontal support device shown in FIG. 2;

FIG. 4 is a side view of the thrust bearing portion shown in FIG. 3;

FIG. 5 is a characteristic diagram showing a method of using the work roll horizontal support device shown in FIG.

FIG. 6 is a view showing an embodiment of a position adjusting device of the work roll horizontal support device shown in FIG. 1;

FIG. 7 is a side view of a work roll horizontal support device according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Working roll 2 Intermediate roll 3 Reinforcement roll 4 Rolling mill housing 5 Support roll 6 Support bearing 7 Support frame 9 Linear drive device 10 Revolving fulcrum 11 Linear motion bearing 12 Revolving drive device 12 Guide rail 14 Guide frame 15 Thrust bearing 17 Positioning drive device 23 Clutch 25A Drive source 24, 31 Reduction gear 50 Work roll horizontal support device

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hiromitsu Mitsui 3-1-1, Sachimachi, Hitachi, Ibaraki Hitachi, Ltd. Inside the Hitachi Plant (72) Inventor Hideo Kobayashi 3-1-1, Sachimachi, Hitachi, Ibaraki No. 1 Hitachi, Ltd., Hitachi Plant (72) Inventor Kenji Horii 3-1-1, Sachimachi, Hitachi, Ibaraki Pref. Hitachi, Ltd., Hitachi Plant (56) References JP-A-63-43708 (JP, A) JP-A-1-180709 (JP, A) JP-A-5-317917 (JP, A) JP-A-3-114603 (JP, A) JP-A-2-284706 (JP, A) JP-A-63-1988 286205 (JP, A) JP-A-63-60005 (JP, A) JP-A-2-38101 (JP, U) JP-A-2-38103 (JP, U) JP-A-62-1131703 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B21 B 13/14 B21B 29/00

Claims (6)

(57) [Claims] A horizontal force acting on a work roll is applied to the work roll.
Support rolls that are in contact with and supported in a zigzag pattern in the axial direction
A support bearing for supporting the support roll,
Rolling with a support frame to hold the support bearings
In the work roll horizontal direction support unit of the machine, the work roll diameter, the support roll diameter, the support bearing
For changes in diameter and work roll offset
To connect the work roll axis to the support roll axis.
The straight line is approximately between the axes of the support bearings that are staggered.
Motion control hand for moving the support frame through the center
A work roll horizontal , comprising: a step, wherein the movement control means includes: a linear movement control means that enables a linear movement of the support frame; and a turning control means that enables a turning movement of the support frame. Direction support device. 2. The work roll horizontal support device according to claim 1 , wherein said linear movement control means includes a guide frame provided with a linear motion bearing for guiding said support frame linearly, and said support frame being connected to said linear frame. First driving means for moving along a motion bearing, the turning control means comprising: a turning fulcrum for supporting the guide frame to be able to turn on the rolling mill housing; and a turning fulcrum centering the guide frame about the turning fulcrum. And a second driving means for turning the work roll. 3. The work roll horizontal support device according to claim 1 , wherein said linear movement control means includes a guide frame provided with a linear motion bearing for guiding said support frame linearly, and said support frame being connected to said linear frame. First driving means for moving along a motion bearing, wherein the turning control means is configured as a part of the support frame and is guided by the linear motion bearing; A swivel support frame configured as the remaining part to hold the support bearing, a swivel fulcrum that pivotally supports the swivel support frame to the linearly movable support frame, and swivel the swivel support frame about the swivel support. A work roll horizontal support device comprising: a second driving means. 4. The work roll is provided with a horizontal force acting on the work roll.
Support rolls that are in contact with and supported in a zigzag pattern in the axial direction
A support bearing for supporting the support roll,
Rolling with a support frame to hold the support bearings
In the work roll horizontal direction support unit of the machine, the work roll diameter, the support roll diameter, the support bearing
For changes in diameter and work roll offset
To connect the work roll axis to the support roll axis.
The straight line is approximately between the axes of the support bearings that are staggered.
Motion control hand for moving the support frame through the center
A step, a thrust bearing for supporting a thrust in the axial direction of the work roll, and a follow-up driving means for moving the thrust bearing in accordance with a change in the offset amount of the work roll; Direction support device. 5. The work roll is provided with a horizontal force acting on the work roll.
Support rolls that are in contact with and supported in a zigzag pattern in the axial direction
A support bearing for supporting the support roll,
Rolling with a support frame to hold the support bearings
A work roll horizontal support device, said work roll diameter, support roll diameter, support bearing
For changes in diameter and work roll offset
To connect the work roll axis to the support roll axis.
The straight line is approximately between the axes of the support bearings that are staggered.
Motion control hand for moving the support frame through the center
In a method of rolling a plate material using a work roll horizontal support device having a step, the work roll is displaced in a rolling direction with respect to an axis of a roll to support the work roll, and a work roll is rolled during forward rolling. The horizontal force acting on the work rolls is supported by the horizontal support device, and at the time of reverse rolling, the reversible rolling is performed by alternately switching the rolling direction by supporting the horizontal force of the work rolls with the rolling rolls. Rolling method to do. 6. The work roll is provided with a horizontal force acting on the work roll.
Support rolls that are in contact with and supported in a zigzag pattern in the axial direction
A support bearing for supporting the support roll,
Rolling with a support frame to hold the support bearings
A work roll horizontal support device, said work roll diameter, support roll diameter, support bearing
For changes in diameter and work roll offset
To connect the work roll axis to the support roll axis.
The straight line is approximately between the axes of the support bearings that are staggered.
Motion control hand for moving the support frame through the center
In a method of rolling a sheet material using a work roll horizontal support device having a step, a pair of upper and lower work rolls that are opposed to each other with the plate material interposed therebetween are vertically displaced in the rolling direction, and the offset amount of the upper work roll and the lower A rolling method characterized in that the shape of a plate material is corrected by changing the offset amount of a work roll.