JPH06262260A - Hot rolling coiling side guide equipment - Google Patents

Abstract

PURPOSE:To provide an equipment which can coil a strip on a coiler without generating a fault on the running hot rolling steel strip and without stopping the running strip. CONSTITUTION:The hot rolling coiling side guide equipment is provided with plural pinch rolls 9, 11, 13 in a hot rolling process, each side guide 8 pressing the end of a running steel strip is provided between the pinch rolls, the side guide 8 includes each two pressing mechanisms on an inlet side and outlet side in the rolling direction and the outlet side pressing mechanism is a mechanism to open following to the increase of a pressing force at the time of passing through is provided. Therefore, even when a meandering amount of the running strip is large, the running strip is not stopped at all with the side guide, accordingly, the production is not disturbed, a remarkably steady operation can be executed and the yield can be improved realized by improvement of a productivity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot-rolling and winding side guide equipment, and more particularly to a hot-rolling and winding side guide equipment for stopping a steel strip running on a side guide between pinch rolls.

[0002]

2. Description of the Related Art Generally, in the production of strip in hot rolling, a slab is roughly rolled by a rough rolling mill, then finish rolled by a finish rolling mill, and the strip exiting the final rolling mill is placed on a hot run table. It runs and is wound around a coil through a pinch roll. A side guide for the purpose of centering the strip is installed upstream of the pinch roll. Such a side guide usually comprises a parallel guide part for guiding both sides of the strip and an introduction guide part connected to the entrance side of the parallel guide part with a predetermined opening angle. In this way, the side guide adjusts the winding shape by introducing the strip into the coiler and aligning the edges of the coil.

However, in such a side guide, the widthwise protrusion of the strip tip portion due to the bending of the strip, the rewinding in the next process, and the flaw and deformation in the handling by a forklift or crane tongs are induced. As described in Japanese Patent Application Laid-Open No. 3-285716, the parallel side guides are controlled to have a predetermined parallel opening degree when starting to wind the strip around the coiler. The introduction side guide is controlled so as to be linearly controlled by inclining at a predetermined angle with respect to the introduction direction of the strip, and after winding the strip around the coiler, it is adjacent to the entrance side of the parallel side guide of the introduction side guide. Control at least one of the most recent angles in parallel so that it is equal to the opening of the parallel side guide. The method of entry side guides have been proposed in the coiler between the rolling.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
As disclosed in Japanese Patent No. 85716, it is true that, when the strip is introduced, the introduction side guide is arranged so as to be inclined at a predetermined angle with respect to the traveling direction of the strip, but the side guide runs. The point of being parallel to the strip is the same as before. When the side guide is parallel to the traveling strip and the amount of meandering of the traveling strip is large,
There is a problem that the strips running on the side guides may stop and hinder production.

[0005]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems and does not provide equipment capable of being wound around a coiler without damaging the strip and stopping the traveling strip. It is what The gist of the invention is that a plurality of pinch rolls are arranged in a hot rolling process, and side guides for pressing the ends of the running steel strips are provided between the pinch rolls, and the side guides are inserted in the rolling direction. The hot-rolling side guide equipment is characterized in that it has two pairs of pressing mechanisms on the output side and the output side, and the pressing mechanism on the output side is provided with a mechanism that opens with an increase in the pressing force at the time of passing the plate. .

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings which are embodiments. FIG. 1 is an overall conceptual diagram showing an embodiment according to the present invention. As shown in FIG. 1, the slab extracted from the heating furnace 1 is roughly rolled in a rough rolling mill group 2 to form a sheet bar 3. The sheet bar 3 is conveyed by a conveying table, the front and rear ends of the sheet bar are cut by the crop shear 4, and the front and rear ends of the sheet bar are refined and finish-rolled by a group of post-finishing rolling mills 5 to form strips and winding. The side guide equipment 6 guides the strip to the coiler, and the winding machine 7 winds the strip into a coil.

FIG. 2 is an explanatory view showing the winding side guide equipment according to the present invention. As shown in FIG. 2, the introduction side guide 8 is inclined so that it is opened at a predetermined angle with respect to the traveling direction of the strip, so that even if the tip of the strip is bent, the first pinch roll 9 is formed. Correctly introduced in. Subsequently, side guides 10 for pressing the tip of the strip through the first pinch rolls 9 are provided, and the side guides 10 have two pairs of pressing mechanisms on the inlet side and the outlet side in the rolling direction. The mechanism is characterized in that it is opened as the pressing force at the time of passing the plate increases. In this way, the occurrence of miscoils due to clogging of the strip is prevented and the coil is accurately introduced. Further, the second pinch roll 11 and the second side guide 12 are equipment for winding on the second coiler, and the third pinch roll 13 and the third side guide 14 are side guides for winding on the third coiler, respectively. It is a mechanism.

FIG. 3 is a sectional view showing the operation of the side guide mechanism according to the present invention. As shown in FIG. 3, the side guide is composed of an electric motor actuating mechanism, the side guide is composed of a side guide beam, and the side of the side guide beam has a tip end of a variable width entrance side screw 15 screwed to the side guide beam. Is movably fitted to. The variable width entry screw 15 is provided on both side guide beams, and can be moved forward and backward by the rotation of the drive motor 17 operated by the variable width controller 16. Thereby, the entrance side guide 10 is configured to expand in the width direction. One outlet screw 18
Also has a similar variable width control device 16 and a motor 17, each of which can be freely switched by a clutch 19,
In order for the outgoing screw 18 to move, the motor 16 of the incoming screw is transmitted by a clutch 19 to be moved or fixed.

FIG. 4 is a sectional view showing the operation of a side guide mechanism according to another embodiment of the present invention. As shown in FIG. 3, it is composed of an actuating mechanism by a quick cylinder, and an inlet-side quick cylinder 20 and an outlet-side quick cylinder 21 are arranged at the strip inlet and outlet ends of the side guide beam, respectively, and a piston mechanism is provided. This is fitted to the entry-side quick cylinders 20 provided on the left and right sides in the width direction at the ends of the side guide beams. A pressure fluid is supplied to the pressure chamber of the inlet side quick cylinder 20 from a hydraulic pressure or an air system via a servo valve operated by a variable width control device (not shown). The value is detected by the pressure gauge and the detection signal can be fed back to the width control device.

The exit side quick cylinder 21 is also constructed by a cylinder mechanism like the entrance side quick cylinder, and is fitted to the exit side end portions of the side guide beams provided on the left and right in the width direction. The actuating mechanism is operated in the same manner as the entry-side quick cylinder, and the actuating mechanism is configured so that it can be fixed or the side guides can be expanded and contracted in the width direction by separate actuating mechanisms.

As described above, the opening degree of the side guide can be adjusted by adjusting the opening degree of the introduction side guide and by adjusting the opening degree of the side guide with respect to fluctuations such as meandering of the downstream strip after the pinch roll. It is possible to eliminate the occurrence of stoppage of the traveling strip. That is, FIG. 5 is a diagram showing a side guide stop occurrence rate of the present invention and the related art. As shown in FIG. 5, the side guide stop occurrence rate with respect to the total number of passages is 0.0 in the conventional method.
It can be seen that, while the occurrence rate is 5%, the occurrence rate of almost 0% is exhibited by carrying out the present invention.

[0012]

As described above, even when the running strip has a large meandering amount by the practice of the present invention, the running strip is never stopped by the side guides, and therefore the production is hindered. In other words, it is possible to achieve extremely stable operation and to achieve an extremely excellent effect that yield can be improved by improving productivity.

[Brief description of drawings]

FIG. 1 is an overall conceptual diagram showing an embodiment according to the present invention,

FIG. 2 is an explanatory view showing a winding side guide facility according to the present invention,

FIG. 3 is a sectional view showing the operation of the side guide mechanism according to the present invention,

FIG. 4 is a sectional view showing the operation of a side guide mechanism according to another embodiment of the present invention.

FIG. 5 is a diagram showing a side guide blind occurrence rate according to the present invention and the related art.

[Explanation of symbols]

 1 heating furnace 2 rough rolling mill group 3 sheet bar 4 crop shear 5 finishing rolling mill group 6 winding side guide equipment 7 winding machine 8 introduction side guide 9 first pinch roll 10 side guide 11 second pinch roll 12 second side Guide 13 Third pinch roll 14 Third side guide 15 Width variable inlet screw 16 Width variable controller 17 Drive motor 18 Outgoing screw 19 Clutch 20 Inlet quick cylinder 21 Outgoing quick cylinder

Claims (3)

[Claims] 1. A plurality of pinch rolls are arranged in a hot rolling process, and side guides for pressing the end portions of the traveling steel strips are provided between the pinch rolls, the side guides being the inlet side and the outlet side in the rolling direction. The hot-rolling winding side guide equipment is characterized in that each has two pairs of pressing mechanisms, and the pressing mechanism on the delivery side is provided with a mechanism that opens as the pressing force at the time of passing the plate increases. 2. The hot-rolling and winding side guide equipment according to claim 1, wherein the opening mechanism is opened in a screw shape by the rotation of the motor. 3. The hot rolling and winding side guide equipment according to claim 1, wherein the opening mechanism is opened by a hydraulic or pneumatic cylinder.