JP2698048B2 - Metal sheet or metal strip winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for winding a metal plate or a metal strip.

[0002]

2. Description of the Related Art When a metal plate or a metal strip is rolled or refined, a coil around which the metal plate or the metal strip is wound is supported on an unwinding reel, and the metal plate or metal strip is wound from the unwinding side coil. Unrolling, moving while supporting this metal plate or metal strip with a plate roll, rolling or refining through a work roll, then moving while supporting the metal plate or metal strip with a plate roll, The take-up reel is used to take up a coil.

One of the problems in the rolling or refining of a metal plate or a metal strip is a meandering problem that occurs when the rolled or refined metal plate or the metal strip is wound by a take-up reel. The metal plate or metal strip meanders at the take-up position, causing a lateral flow.As a result, excessive force is applied to the metal plate or metal strip, causing troubles such as breakage and wrinkles, resulting in productivity and yield. Has been adversely affected. In particular, when a thin metal plate or a metal strip is moved at a high speed and wound up, a lateral flow due to meandering is likely to occur.

[0004] The meandering at the time of winding as described above is caused by plate bending caused by a difference in thickness between the left and right plates of a metal plate or a metal strip during rolling, and a reduction in friction due to a passing plate roll for transporting the metal plate or the metal strip. And the change of the traveling direction of the metal plate or the metal strip due to poor parallelism of the passing roll, and the change of the traveling stability due to the thermal crown of the passing roll.

Conventionally, the following countermeasures have been taken against the causes of the meandering. That is, as a countermeasure, a method of correcting the sheet bending by feeding back to the gap between the rolling rolls by detecting the sheet bending (JP-A-59-104)
No. 206), a method of improving the frictional force of a printing roll by surface treatment of the roll (JP-A-58-188257),
Method for controlling thermal crown change of threading roll
No. 1-84332). These conventional measures can be roughly classified into (1) correcting the bending of the plate itself, (2)
Correction of the degree of parallelism between the rolls of the threading path is performed, and (3) meandering is prevented by improving the binding force.

[0006]

However, as described above, in order to suppress the occurrence of meandering, the bending of the metal plate or the metal strip itself is corrected, and the parallelism between the rolls in the passing plate path is adjusted.
In addition, in the field of moving a thin metal plate or metal strip at a high speed and winding it even when the binding force is improved, a lateral flow of the metal plate or metal strip may occur at the winding position at the winding position, There remains a problem of lateral flow of a metal plate or metal strip that cannot be solved only by conventional measures.

The present invention has been made in view of the above circumstances, and provides a metal plate or metal strip winding device capable of preventing meandering at a winding position of a metal plate or metal strip which cannot be solved by the prior art. The purpose is to:

[0008]

In order to achieve the above object, a winding device for winding a metal plate or a metal strip according to the present invention comprises: a winding reel for winding a metal plate or a metal strip into a coil shape; Measuring means for measuring the difference between the left and right displacements of the axis of the take-up reel when the metal plate or the metal strip is wound, and measuring the difference between the left and right displacements of the take-up reel measured by the measuring means. And adjusting means for adjusting the position of the axis of the take-up reel with a view to reducing the difference between the left and right displacements to zero.

[0009]

The meandering at the winding position of the metal plate or the metal strip is such that the metal plate or the metal strip is a thin plate, the moving speed of the metal plate or the metal strip is high, and the winding of the metal plate or the metal strip is performed. This is remarkable when the diameter of the coil is large. This means that air is trapped in the area where the metal plate or strip is wound onto the coil, and this trapped air acts as air lubrication between the wraps of the coil, resulting in a gap between the metal plate or strip on each lap. This is probably due to the reduction in friction.

[0010] Therefore, the outer periphery of the coil on which the metal plate or the metal strip is wound is pressed by a coil press roll to suppress a decrease in friction between the metal plate or the metal strip of each wrap, thereby winding the metal plate or the metal strip. The occurrence of meandering at the position can be suppressed. However, when the diameter of the coil around which the metal plate or the metal strip is wound increases, the occurrence of the meandering of the metal plate or the metal strip becomes remarkable again. Cannot be suppressed.

According to the study of the inventor of the present invention, it has been found that the meandering of the metal plate or the metal strip is caused by the following reason. That is, the take-up reel is deflected by the tension of the metal plate or the metal strip and the weight of the coil of the wound metal plate or metal strip of the take-up reel. This is because the left and right levels of the mind change from the initial setting state. The axis of the take-up reel is set so as to be parallel to the metal plate or metal strip at the start of winding. However, when the left and right levels of the axis of the take-up reel change from the initial setting state, the parallelism with respect to the metal plate or the metal strip is impaired, and this causes the metal plate or the metal strip to meander.

In the winding device for a metal plate or a metal strip according to the present invention, the above structure causes deformation of the metal plate or the metal strip due to the winding tension or the weight of the coil of the metal plate or the metal strip, thereby causing the shaft of the winding reel to rotate. Even if the left and right levels of the mind change, this can be corrected. And
In the present invention, even if the metal plate or the metal strip is a thin plate, is wound at a high speed, and the diameter of the coil on which the metal plate or the metal strip is wound is large, meandering occurs at the winding position of the metal plate or the metal strip. Can be reliably suppressed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. FIGS. 1 to 3 show a winding device of this embodiment provided in a rolling device (refining device) for rolling a metal plate or a metal strip.

The winding device according to the present invention will be described.
In the figure, reference numeral 1 denotes a take-up reel, and the configuration for supporting the take-up reel 1 is as follows. That is, one end of the take-up reel 1 is rotatably supported by the bearing 2 provided on the fixed member 4 and is linked to the motor 3.

The other end of the take-up reel 1 is rotatably supported by a bearing 5 provided on a reel support 6, and the reel support 6 is supported by a horizontal pivot 7 so as to be vertically rotatable. The reel support 6 is rotated by a rotation driving mechanism (not shown).

The reel support 6 is supported by a pivot 7 so as to be movable in the axial direction (horizontal direction), and is horizontally moved by a moving mechanism (not shown). The bearing 5 is supported by a piston of an up / down adjustment cylinder 8 which is an example of adjustment means provided on the reel support 6 and a piston of a left / right adjustment cylinder 9 provided on the reel support 6, respectively. The pistons are displaced vertically and horizontally by driving the piston. The other end of the take-up reel 1 can be inserted into and extracted from the bearing 5.

In this configuration, the reel support 6 is vertically rotated and horizontally moved to move the bearing 5 to support and release the take-up reel 1 by the bearing 5, and to adjust the up-down adjustment cylinder 8 and the left-right adjustment The driving of the cylinder 9 displaces the bearing 5 in the vertical and horizontal directions to adjust the position, and adjusts the left and right levels of the axis of the take-up reel 1 due to the deflection of the take-up reel 1.

Next, an example of means for measuring the deflection of the take-up reel 1 will be described with reference to FIG. As described above, the take-up reel 1 is a cantilever having a fixed end supported at one end by a bearing 2 and a free end supported by a displaceable bearing 5 at the other end. For this reason, the take-up reel 1 will bend in the axial direction with one end serving as a fulcrum.

In this embodiment, the deflection of the take-up reel 1 is detected by the structure shown in FIGS. 3 and 4 and described below. That is, the laser light is emitted from the laser light generator 10 to the other end face of the take-up reel 1, and the reflected light is received by the light receiver 11. When the take-up reel 1 is bent and the angle of the other end face changes, the state of reflection of the laser beam at the other end of the take-up reel 1 changes. The light receiver 11 detects the deflection of the take-up reel 1 based on the change in the state of the reflected laser light. That is, the right and left displacement of the take-up reel axis is directly measured.

The control system will be described with reference to FIGS. In the figure, 21 is a control circuit, and 22 is a cylinder drive circuit. The control circuit 21 receives the signal from the light receiver 11 and knows the state of the deflection of the take-up reel 1, that is, the displacement of the left and right of the axis of the take-up reel 1, and corrects the deflection of the take-up reel 1 to correct the deflection. Calculate the direction of displacement and the amount of corrected displacement.

Then, based on the result of this calculation, a signal for instructing the cylinder drive amount to the cylinder drive circuit 22 is output. The cylinder drive circuit 22 drives the up / down adjustment cylinder 7 and the left / right adjustment cylinder 8 by a predetermined amount based on a signal from the control circuit 21. By driving the vertical adjustment cylinder 7 and the horizontal adjustment cylinder 8, the take-up reel 1 is moved in a predetermined direction via the bearing 5 so that the left and right levels of its axis change to zero as described above. Perform quantitative displacement.

In the drawing, reference numeral 31 denotes a pay-out reel, both ends of which are rotatably supported by bearings 32 and 33, and one end of which is rotated in association with a motor 34. 35 is a pair of work rolls, 36 is a pair of backup rolls,
Reference numeral 37 denotes a threading roll provided between the feeding reel 31 and the work roll 35 and between the work roll 36 and the take-up reel.

In the case of using the winding device configured as described above, first, the winding reel 1 is connected to the reel support 6.
Support with. In this case, the reel support 6 is pivoted upward about the pivot 7 by the driving device, moves along the axial direction in a direction approaching the motor 3, and is mounted on the bearing 5 provided on the reel support 6. Insert the other end. A coil formed by winding a metal plate or a metal strip P is supported on the payout reel 31, and the tip of the metal plate or the metal strip P is attached to the take-up reel 6.

The work roll 36 is driven by a rotation drive device (not shown), and the take-up reel 1 is rotated by the motor 3 in the take-up direction. Then, the metal plate or the metal strip P is fed from the coil C supported on the pay-out reel 31, and is rolled or refined through the work roll 36 via the passing roll 37, and further through the passing roll 37. And wound on a winding reel 6 which rotates.

The laser light is emitted from the laser light generator 10 to the other end face of the take-up reel 6, and the reflected light is received by the light receiver 11. When the take-up reel 1 does not bend, the reflected light has a constant level.

The take-up reel 1 which was horizontal when the take-up of the metal plate or the metal strip P was started is shown in FIG. 4 as the take-up progresses and the diameter and weight of the coil C increase. As described above, bending occurs in the axial direction with one end serving as a fulcrum, and the left and right levels of the axis change. As the take-up reel 1 bends, the other end face is inclined. Then, the state of reflection of the laser light emitted from the laser light generator 8 at the other end face of the take-up reel 6 changes.

The light receiver 11 detects the change in the reflection state and outputs a signal to the control circuit 21. The control circuit 21 receives this signal and calculates a change in the left and right levels of the axis of the take-up reel 1, and corrects the left and right levels of the axis to the original state according to the change of the left and right levels of the axis. Thus, the drive amounts of the vertical adjustment cylinder 8 and the left and right adjustment cylinder 9 are calculated and obtained.

Further, the control circuit 21 uses this drive amount to drive the vertical adjustment cylinder 8 and the left / right adjustment cylinder 9 based on the signal from the control circuit 21. As a result, the piston of the vertical adjustment cylinder 8 and / or the piston of the left / right adjustment cylinder 9 are driven to displace the bearing 5 so that the bearing 5 is displaced by a predetermined amount in the up / down direction / left / right direction. Eliminates changes in left and right levels (difference in left and right displacement).

After the winding is completed, the winding reel 1 is removed from the reel support 6. In this case, the reel support 6 is moved along the axial direction in a direction away from the motor 3, and the bearing 5 provided on the reel support 6 is removed from the other end of the take-up reel 1. The reel support 6 is rotated downward about the pivot 7 by the driving device. The coil C on which the metal plate or the metal strip P has been wound is removed from the winding reel 1 .

In this way, the difference between the left and right displacements of the axis of the take-up reel 1 when the metal plate or the metal strip P is taken up by the take-up reel 1 is directly measured by the measuring means. Then, based on the difference between the left and right displacements of the take-up reel 1 measured by the measuring means by the adjusting means, the position of the take-up reel 1 is adjusted so as to eliminate the difference between the left and right displacements.

Then, even if the winding tension of the metal plate or the metal strip P or the deformation of the metal plate or the metal strip P due to the weight of the coil C occurs, the left and right levels of the axis of the winding reel 1 change. It is possible to correct the metal plate or the metal strip P even if the metal plate or the metal strip P is a thin plate, is wound at a high speed, or the diameter of the coil C of the wound metal plate or the metal strip P is large. The occurrence of meandering at the winding position can be reliably suppressed. It is needless to say that the present invention is not limited to the above conditions, and it is possible to reliably suppress the occurrence of meandering in winding a wide range of a metal plate or a metal strip.

Another embodiment will be described with reference to FIG. The axis of the reel support 6 that supports the take-up reel 1 includes the tension when the take-up reel 1 takes up the metal plate or the metal strip P, the diameter of the coil of the wound metal plate or the metal strip P, the coil (metal Plate or metal strip) determined by the width and coil weight. Therefore, the relationship between the value of each element and the displacement of the axis of the take-up reel 1 is determined in advance, and this relationship is programmed in the estimation circuit 41 in advance.

When the take-up reel 1 takes up the metal plate or the metal strip P, the tension applied to the metal plate or the metal strip by the take-up reel and the coil (metal plate or metal strip) width are input to the estimation circuit 41 in advance. At the same time, as the winding of the metal plate or the metal strip P progresses, the diameter of the coil formed of the metal plate or the metal strip P which is constantly wound by the measuring device 42 is measured and input to the estimation circuit 41.

The estimation circuit 41 calculates the weight of the coil C at each time by combining the input coil width with the measured diameter of the coil C at each time, and further, based on the input information such as the tension. The displacement of the left and right of the axis of the reel support 6 is estimated. The estimating circuit 41 and the measuring device 42 constitute a measuring unit.

Then, the position of the take-up reel 1 is adjusted based on the amount of left and right displacement of the axis of the reel support 6 estimated by the estimation circuit 41 so as to eliminate the difference in left and right displacement as in the above-described embodiment. . In this embodiment, an appropriate correction can be made without directly measuring the displacement of the reel support 6 during winding.

The present invention is not limited to the above-described embodiment, but can be implemented with various modifications. As a specific example of the measuring means, there is a method of attaching a displacement meter to an end of the reel shaft. Hydraulic jacks, as adjusting means for correcting the position by slightly moving the bearing of the take-up reel
Examples include a method using a screw screw.

[0037]

As described above, according to the apparatus for winding a metal plate or a metal strip of the present invention, deformation occurs due to the winding tension of the metal plate or the metal strip or the weight of the coil of the metal plate or the metal strip. Even if the level on the left and right of the axis of the take-up reel changes, it is possible to correct this, and the metal plate or the metal strip is a thin plate, is wound at a high speed, and is further removed. Even under the condition that the diameter of the coil is large, it is possible to reliably suppress the occurrence of meandering at the winding position of the metal plate or the metal strip.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing one embodiment of a winding device of the present invention.

FIG. 2 is a schematic configuration diagram showing a winding device of the embodiment.

FIG. 3 is a side view showing a take-up reel support structure in the embodiment.

FIG. 4 is an exemplary view for explaining a configuration for detecting deflection of a take-up reel in the embodiment.

FIG. 5 is a schematic configuration diagram showing a winding device according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Take-up reel, 6 ... Reel support, 8, 9 ... Cylinder, 10 ... Laser light emitting device, 11 ... Light receiving device, 21 ... Control circuit, 22 ... Drive circuit.

Claims (1)

(57) [Claims] A difference between left and right displacements of a take-up reel for winding a metal plate or a metal strip into a coil shape and an axis of the take-up reel when the metal plate or the metal strip is wound by the take-up reel. And the position of the axis of the take-up reel is adjusted based on the difference between the left and right displacements of the take-up reel determined by the measurement means to reduce the difference between the left-right displacements to zero. A winding device for a metal plate or a metal strip.