JPS58167345A - Method of controlling bridle roll - Google Patents

Abstract

PURPOSE:To make possible to correct the staggering of a strip, by dividing an exit final roll of bridle rolls comprising a plurality of rolls, and differenciating the rates of the bridle rolls in case when the strip is delivered from the bridle rolls and starts staggering. CONSTITUTION:The bridle rolls includes at the exit side the divided rolls 2 as well as usual rolls 1, and a steel strip 4 is passed through these rolls 1, 2 alternatively. The divided rolls 2 includes rolls 2A, 2B that can be rotated independently by motors 3A, 3B, respectively. In case that the steel strip 4 staggers to the right when the steel strip 4 is being tensed uniformly by the divided rolls 2, the tension of the steel strip 4 given by the roll 2A is increased or the tension of the steel strip given by the roll 2B is reduced. Since the steel strip 4 is moved to the side where the tension is greater, the staggering of the steel strip 4 can be corrected.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Description of the Technical Field The present invention relates to a method for controlling a prydle roll.

(b) Description of prior art In process line equipment, when there are a large number of loops, the steel plate may meander to the left or right between them, causing the steel plate to deviate from the center of the equipment.
Contact with left and right mechanical equipment may occur, making it impossible to operate the next processing equipment.

For this reason, steel plate position correction devices were installed at important points on the line to correct the position of the steel plate to the center of the equipment.

(C) Object of the Invention It is an object of the present invention to provide a method for controlling a prydle roll that eliminates the need for the steel sheet position correction device by providing the prydle roll with a steel plate position correction function.

(d) Configuration of the Invention The configuration of the priddle roll control method according to the present invention will be explained in detail below.

Fig. 1 is a schematic diagram showing a good condition when the roll of the present invention is arranged on the last roll on the exit side of the pre-dol roll, Fig. 2 is a drive configuration diagram of a two-part roll, and Fig. 3 is an example of an embodiment of the two-part roll. FIG.

Reference numeral 1 indicates a roll, and 2 indicates a divided roll. The divided rolls are composed of a left roll 2A and a right roll 2B, each of which is independently rotatable, and each of which is independently driven by a drive motor of three people and a drive motor of 3B.

As shown in the figure, the steel plate 4 is conveyed by passing alternately between the rolls 1 and the split rolls 2.

The configuration for independently driving the two left rolls and the right roll 2B is shown in FIG. 2. Five gears and 5B are provided outside the split roll 2, and these gears 5A and 5B are driven by drive motors 3A and 5B. Six gears connected to 3B and 6B drive the paper.

7 and 7B indicate a roll housing, which has a structure in which the intermediate roll 8 is fixed.

An embodiment of the split roll is shown in FIG. 3, in which the intermediate roll 8 is a single roll, and has nine outer rolls and 9B that can rotate left and right independently on the outside thereof, and the intermediate roll 8 and the outer roll 9A. A bearing 10 structure is provided between the outer rolls 9 and 9B to support the outer rolls 9 and 9B from external forces and to enable smooth rotation.

Furthermore, stoppers 11 are provided on the left and right outer sides of the intermediate roll 8 to prevent the outer rolls 9 and 9B from slipping outward.

(e) Function of the invention The function of the pridle roll according to the present invention having the structure explained above will be explained below using FIG. 4.

FIG. 4 shows a detailed illustrative schematic diagram of the invention.

Now, when the steel plate 4 is being operated with the same tension from the split rolls 2 on the left and right sides and the steel plate 4 is meandering, for example to the right (as indicated by the broken line on the steel plate 4), the left roll The tension applied to the steel plate 4 by two people is increased, or the tension applied to the steel plate 4 is decreased by the right roll 2B.

If a tension difference occurs between the two left rolls and the right roll 2B, the steel plate 4 being conveyed will shift to the side where the applied tension is greater, and correction can be made to the center of the equipment.

Conversely, if the steel plate 4 meanderes to the left, the position of the steel plate 4 can be corrected by increasing the tension of the right roll 2B or decreasing the tension of the two left rolls.

In addition, using a steel plate position detector, the tension of the left roll 2A1 and the right roll 2B is controlled by this output signal, and feedback control is performed so that the steel plate position is always centered on the equipment, thereby achieving highly accurate position control. is also possible.

(f) Effects of the Invention According to the priddle roll control method of the present invention having the structure, configuration, and action described above, it is possible to provide equipment capable of correcting the position of a steel plate by having a steel plate position correction device. Can be done.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing a good state in which the roll is arranged to embody the present invention on the final roll on the exit side of the pre-dol roll;
FIG. 2 is a drive configuration diagram of the two-part roll, FIG. 3 is a front sectional view showing one embodiment of the two-part roll, and FIG. 4 is a schematic diagram illustrating the present invention in detail. 1...roll, 2...minute ill o - roll, 2A・
・Left roll of split roll, 2B...Right roll of split roll, 3 people 3B...Drive motor, 4...Steel plate, 5A, 5
B...gear of split roll (2), 6A, 6B...
Drive motor (3A), (3B) gears, 7A, 7B
... Roll housing, 8 ... Intermediate roll, 9^9
B...outer roll, 10...bearing, 11...stopper. (7317) Daishioiri patent attorney Kensuke Chika (and 1 others)
Figure 1 Figure 3 Figure 4 2A 28 269

Claims (1)

[Claims] A final roll on the exit side of a prydle roll consisting of a plurality of rolls is divided, and a drive device is provided for each of the rolls, and when meandering occurs in the strip fed out by the prydle roll, each of the drive devices A method for controlling prydle rolls, characterized in that the meandering of the strip plate is corrected by providing a speed difference in the prydle rolls.