JPH0735607Y2 - Roller side guide - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a roller-type side guide that is installed before and after a mill of a hot rolling line or before a down coiler to guide a strip plate. This is to prevent the accuracy of width setting from being deteriorated due to wear.

[Prior Art] Before and after the mill of the hot rolling line and before the down coiler,
Generally, a ride guide is installed to guide the strip (strip).

For example, the side guides installed in front of the down coiler of the hot rolling line are installed on both sides of the hot run table provided on the exit side of the finishing rolling mill, and these side guides guide to a predetermined position such as the center of the pass line. The strip thus formed is sent to a down coiler through a pinch roll, and is pressed by a trumpet roll so as to be wound around a horizontal mandrel at the center thereof.

There are roughly two types of such side guides, one of which is a liner guide which guides the side surface of the strip in sliding contact therewith, and the other of which is a roller guide which guides the side surface of the strip in rolling contact. The liner guide has a large wear resistance, and the roller guide has a small friction resistance.

An example of a side guide utilizing such characteristics of the liner guide and the roller guide is disclosed in Japanese Patent Publication No. 64-131, which is constructed as shown in FIGS. 6 and 7. There is.

A pair of the side guides 1 are provided on the hot run table 2 so as not to interfere with each other, and the width can be adjusted by a known width adjusting mechanism. The guide surface of the side guide 1 is covered with a wear-resistant liner 3 to form a liner guide A, and a plurality of pairs of rollers 4 are provided in the middle of the guide surface so that the rollers 4 can be driven back and forth.
Is configured to be driven forward and backward by the fluid pressure cylinder 5.

By the operation of the fluid pressure cylinder 5, the roller 4 can be located at a position projecting from the guide surface of the side guide 1 and at a position retracting it. When guiding the tip of the strip S, the roller 4 is projected. The roller guide B is formed by the roller 4 having a small frictional resistance, and similarly, the subsequent strip S is guided by the roller guide B as it is.

On the other hand, after the trailing end of the strip S leaves the final stand of the rolling mill, the roller 4 is retracted so that it is sandwiched by the liner 3 of the side guide 1 having a large frictional resistance, and is guided by the liner guide A while applying back tension. I have to.

Further, in the side guide 1 including the liner guide A formed by the liner 3 and the roller guide B formed by the roller 4 as described above, a material such as a stainless steel plate that is easily scratched or a thick plate has a large friction resistance with the liner 3. In this case, there is also proposed a usage method in which the roller 4 is used to guide the material, while the thin liner or the like is used to guide the material that causes no problem even if contact with the liner 3 occurs.

[Problems to be Solved by the Invention] However, in such a side guide 1, when the strip S is guided by the roller 4, since the roller 4 is not driven, when the strip S comes in, the strip S is removed from the strip S. When the strip S is in contact with the roller 4 due to the frictional force, the slip occurs between the strip S and the roller 4 when the roller 4 is accelerated from the stopped state to the speed of the strip S or when the roller 4 does not rotate smoothly. There is a problem that a part is locally worn and a groove is formed.

Therefore, when the next strip S is guided, there is a problem that the strip S is scratched or an error occurs in the width of the strip S even though the set position of the side guide is held constant.

Therefore, it is conceivable to drive the liner 3 and the roller 4 as a whole back and forth to change the set width.
When switching from the guide according to (1) to the guide according to the liner 3, there is a problem that the liner 3 also needs to be corrected according to the wear amount of the roller 4, and the width setting becomes complicated.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a roller-type side guide in which a groove is not formed due to local wear on a roller, the life is long, and scratches do not occur on a strip plate. It is a thing.

Further, the present invention intends to provide a roller-type side guide in which the width setting can be easily changed even when the roller is worn and the precision of the guide of the strip plate can be improved.

[Means for Solving the Problems] In order to solve the problems of the above-described conventional technology, the roller-type side guide of the present invention is a roller in which a vertical roller that abuts and guides a side surface of a strip plate is supported in a freely rotatable manner. While forming a male screw on the shaft and allowing the roller shaft to be rotated from the outside, a female screw for coupling the male screw to a roll chock supporting the roller shaft is formed so that the vertical position of the vertical roller can be moved. It is characterized by being provided.

In the roller side guide of the present invention, the roller shaft of the vertical roller that abuts and guides the side surface of the strip plate is swingably provided via the swing arm, while the swing position of the swing arm is adjusted. It is characterized in that an eccentricity adjusting mechanism or a mechanical stopper for adjusting the protruding position of the vertical roller according to the amount of wear of the roller is provided.

Further, in the roller-type side guide of the present invention, the vertical roller that abuts against the side surface of the strip plate is provided with a mechanism for moving the vertical position according to claim 1, and the vertical roller according to claim 2 further includes: It is characterized in that a mechanism for adjusting the swing position according to the amount of wear of the roller is provided in combination.

[Operation] According to this roller type side guide, the vertical position of the vertical roller can be formed by forming a male screw on the roller shaft, which can be rotated from the outside, and forming a female screw on the roll chock supporting the roller shaft. Therefore, the roller shaft on which the male screw is formed is periodically rotated to change the contact position of the roller with the strip plate, thereby preventing local wear and preventing the formation of grooves.

Therefore, the belt plate is not scratched and the life of the roller can be extended.

Further, according to this roller type side guide, the roller shaft of the vertical roller for guiding the strip plate is attached to a swing arm provided so as to be swingable, and the swing position of the swing arm is adjusted by an eccentricity adjusting mechanism or a mechanical stopper. It is possible to change the protruding position of the vertical roller by adjustment, and even if the roller is worn, the width setting can be easily changed,
The accuracy of the strip guide is improved.

Therefore, the camber and meandering in the mill rolling are reduced, and the telescope of the down coiler can be reduced.

Further, according to this roller type side guide, the vertical position of the vertical roller is formed with a male screw that can be rotated from the outside on the roller shaft, and a female screw is formed on the roll chock that supports this roller shaft so that it can be moved. Along with
The roller shaft of the vertical roller that guides the strip is attached to a swing arm that is swingable, and the swing position of this swing arm is adjusted by an eccentricity adjustment mechanism or a mechanical stopper to change the protruding position of the vertical roller. To be able to
It is possible to prevent the formation of a groove due to local wear and easily change the width setting.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings.

1 to 3 relate to a main part of an embodiment of a roller side guide of the present invention, FIG. 1 is a longitudinal sectional view, FIG. 2 is a plan view, and FIG. 3 is a perspective view.

The roller side guide 10 is arranged on a hot run table installed between the pinch rolls on the exit side of the finish rolling mill and the entrance side of the down coiler, and can be switched depending on the material and thickness of the strip (strip plate) S. The liner 3 to be covered is used together with the covered liner guide A (see FIGS. 6 and 7).

In this roller side guide 10, a vertical support shaft 12 is attached to a frame 11 arranged on both sides of the pass line L, and a swing arm 13 swinging in a horizontal plane swings above and below the support shaft 12. Supported as possible.

A roll chock 14 is integrally provided at the tip of the swing arm 13, and a vertical roller shaft 15 is provided. A male screw 16 is formed on the upper portion of the roller shaft 15, which is screwed into a female screw of a nut 17 fixed to the upper end of the roll chock 14 to form a square hole at the upper end of the roller shaft 15.
By using 18 to rotate, the vertical position of the roller shaft 15 can be moved.

Bearings 19 are provided on the roller shaft 15 at the top and bottom, and a vertical roller 20 having a cylindrical shape is fitted therein so as to rotate freely.

Therefore, by rotating the roller shaft 15, the vertical position of the vertical roller 20 can be moved with respect to the roll chock 14, and the vertical contact position between the strip S and the vertical roller 20 can be changed.

Further, two brackets 21 are horizontally provided on the back of the roll chock 14, and an eccentric shaft 22 is provided between the brackets 21 so that the upper and lower bracket support portions and the intermediate cylinder rod connecting portion are eccentric. ing. This eccentric shaft
A square hole 23 is formed at the upper end of 22 to allow the eccentric shaft 22 to rotate, and the cylinder rod 25 of the hydraulic cylinder 24 is connected to the intermediate cylinder rod connecting portion.

Therefore, the swing arm 13 can be swung by expanding and contracting the cylinder rod 25 of the hydraulic cylinder 24,
The vertical roller 20 supported by the roll chock 14 integrated with the swing arm 13 can be used as a side guide by protruding from the liner guide A, or can be retracted to the retracted state.

Further, by rotating using the square hole 23 at the upper end of the eccentric shaft 22 to which the cylinder rod 25 of the hydraulic cylinder 24 is connected, the position of the vertical roller 20 with respect to the cylinder rod 25 can be changed. Even when the stroke of 24 is constant, the contact width between the surface of the vertical roller 20 and the side surface of the strip S can be changed to adjust the set width of the roller side guide 10.

Although not shown, the liner guide A including the liner 3 can be moved toward and away from the bus line L in a closed state, and can be moved toward and away from the bus line L in a tilted state. As a forward / backward drive mechanism for driving the same, one hydraulic cylinder is connected to each liner guide A via a universal joint or the like, and each hydraulic cylinder is supplied via a servo valve (not shown). It is designed to be driven to an arbitrary position by hydraulic pressure.

In addition, the roller side guide 10 and the entire liner guide A are formed by a motor, a speed reducer, and a screw (not shown).
The opening can be set according to the plate width.

Next, the operation of the roller-type side guide 10 thus configured will be described.

To prevent the occurrence of grooves due to local wear on the surface of the vertical roller 20.

In this case, the vertical position of the vertical roller 20 may be periodically moved, and the roller shaft 15 is fixed to the roll chock 14 by rotating the roller shaft 15 using the square hole 18 at the upper end of the roller shaft 15. The vertical position of the roller shaft 15 on which the male screw 16 is formed is changed with respect to the nut 17, and the vertical contact position between the strip S and the vertical roller 20 is changed.

Then, the wear of the vertical roller 20 can be dispersed, and a groove or the like due to local wear is not formed.

Therefore, the strip S enters the groove due to local wear,
Problems such as misguiding and scratches on the strip S can be eliminated, and the life of the vertical roller 20 can be greatly extended.

To prevent errors in the width setting of the vertical roller 20 due to wear.

With this roller-type side guide 10, the wear of the vertical roller 20 can be dispersed and uniformly worn.
When 20 wears, the distance between the pair of vertical rollers 20 that sandwich the pass line L, that is, the set width increases, and the accuracy of the guide by the roller side guide 10 decreases.

Therefore, it is necessary to adjust the contact position of the vertical roller 20 with the strip S according to the wear amount of the vertical roller 20, and the eccentric shaft 22 to which the cylinder rod 25 of the hydraulic cylinder 24 is connected is connected to the square hole 23 at the upper end. Use to rotate.

Then, the position of the vertical roller 20 with respect to the cylinder rod 25 can be changed in advance according to the eccentricity e of the eccentric shaft 22.
Even if the stroke of the hydraulic cylinder 24 is constant, the vertical roller
The setting width of the roller side guide 10 can be adjusted by changing the contact position between the surface of 20 and the side surface of the strip S.

Therefore, the accuracy of the set width of the roller-type side guide 10 can be improved regardless of the amount of wear of the vertical roller 20, so that the accuracy of guiding the strip S can be improved, and the camber and meandering in the mill rolling can be reduced. , Can reduce telescope in down coiler.

To prevent the occurrence of a groove on the surface of the vertical roller 20 due to local wear and at the same time prevent an error in the width setting of the vertical roller 20 due to wear.

In this case, by moving the vertical position of the roller shaft 15 to disperse and evenly wear the vertical roller 20, the eccentric shaft 22 is rotated according to the wear amount of the vertical roller 20 to rotate the vertical roller. The contact position of 20 should be adjusted.

As a result, it is possible to prevent the formation of grooves due to local wear and improve the accuracy of width setting.

Next, another embodiment for adjusting the contact position of the vertical roller 20 of the present invention will be described with reference to FIGS.

In this embodiment, the stroke of the hydraulic cylinder 24 that swings the swing arm 13 has a margin in each of the extension direction and the contraction direction, and the contact position of the vertical roll 20 is provided before and after the roll chock 14 in the swing direction. The stoppers 26 and 27 are used to regulate the contact.

A shim 28 can be attached to the stopper 26, 27 on the contact surface with the roll chock 14.
If the vertical roller 20 is worn, the shim 28 of the stopper 26 on the protruding side of the vertical roller 20 should be removed according to the amount of wear, and if necessary, the shim 28 should be
Try to increase 28.

Then, the contact position of the vertical roller 20 with the strip can be adjusted without changing the width setting of the entire roller side guide 10, and the plate width accuracy can be improved.

In the above embodiment, the side guide installed before the down coiler has been described, but the present invention is not limited to this, and is similarly applicable to side guides installed before and after the mill.

Further, the roller side guide is not limited to the vertical roller, but a roller disk may be used.

Further, the mechanism for moving the vertical roller in the vertical direction and the mechanism for adjusting the contact position of the vertical roller with the strip are not limited to those shown in the drawings, but may have other configurations.

[Effect of the Invention] As described in detail above with reference to the embodiment, according to the roller-type side guide of the present invention, the vertical position of the vertical roller is formed with a male screw that can be rotated from the outside on the roller shaft. Since a roll chock supporting this roller shaft is formed with a female screw so that the roll chock can be moved, by periodically rotating the roller shaft having a male screw, the contact position of the roller with the strip plate can be changed. It is possible to prevent local wear and prevent the formation of grooves and the like.

Therefore, the belt plate is not scratched and the life of the roller can be extended.

Further, according to the roller type side guide of the present invention, the roller shaft of the vertical roller for guiding the strip plate is attached to the swing arm provided so as to be swingable, and the swing position of the swing arm is adjusted to the eccentricity adjusting mechanism or the mechanical stopper. Since it is possible to change the protruding position of the vertical roller by adjusting with, it is possible to easily change the width setting even when the roller is worn, and it is possible to improve the accuracy of the guide of the strip plate. .

Therefore, the camber and meandering in the mill rolling are reduced, and the telescope of the down coiler can be reduced.

Further, according to the roller type side guide of the present invention, the vertical position of the vertical roller can be moved by forming a male screw on the roller shaft that can be rotated from the outside and forming a female screw on the roll chock that supports the roller shaft. In addition, the roller shaft of the vertical roller that guides the strip is attached to a swing arm that is swingable, and the swing position of this swing arm is adjusted by an eccentricity adjustment mechanism or a mechanical stopper. Since it is possible to change the protruding position, it is possible to prevent the formation of grooves due to local wear and
You can easily change the width setting.

[Brief description of drawings]

1 to 3 relate to a main part of an embodiment of a roller side guide of the present invention, FIG. 1 is a longitudinal sectional view, FIG. 2 is a plan view, and FIG. 3 is a perspective view. 4 and 5 relate to another embodiment of the roller side guide of the present invention, FIG. 4 is a perspective view and FIG. 5 is a plan view. 6 and 7 are schematic plan views and VII-VII of the conventional device.
FIG. 10: Roller side guide, 11: Frame, 12: Support shaft, 1
3: Swing arm, 14: Roll chock, 15: Roller shaft,
16: Male screw, 17: Nut, 18: Square hole, 19: Bearing, 20: Vertical roller, 21: Bracket, 22: Eccentric shaft, 23: Square hole, 24: Hydraulic cylinder, 25: Cylinder rod, 26, 27: Stopper, 28: Shim,
A: Liner guide, B: Roller guide, L: Pass line, S: Strip.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mikio Soya 1 Kawasaki-cho, Chiba City, Chiba Prefecture Inside the Kawasaki Steel Co., Ltd. (72) Inventor Hisao Takenaka 1 Kawasaki-cho, Chiba City Kawasaki Steel Co., Ltd. Chiba Inside a steel mill (56) References JP-A-60-187403 (JP, A)

Claims (3)

[Scope of utility model registration request] 1. A vertical axis roller, which abuts against a side surface of a strip plate and guides the vertical axis, is formed with a male screw on a roller shaft supported rotatably, and the roller shaft is rotatable from the outside.
A roller-type side guide characterized in that a female screw to which the male screw is coupled is formed on a roll chock that supports the roller shaft so that the vertical position of the vertical roller is movable. 2. A roller shaft of a vertical roller that abuts against and guides a side surface of a strip plate is swingably provided through a swing arm, and a swing position of the swing arm is adjusted to adjust a protruding position of the vertical roller. A roller-type side guide having an eccentricity adjustment mechanism or a mechanical stopper for adjusting the roller according to the amount of wear of the roller. 3. A vertical roller that comes into contact with and guides the side surface of the strip plate is provided with a mechanism for moving the vertical position according to claim 1, and the vertical roll according to claim 2 is adapted to the amount of wear of the roller. Roller-type side guide, which is provided by combining a mechanism that adjusts the swinging position.