JPH10137846A - Band steel coiler for hot rolling equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a band steel coiler for a hot rolling equipment capable of preventing deterioration of product value by effectively evading from the deflection at the time of tailing off of deflector pinch roll at the rear end of the band steel. SOLUTION: In this band steel coiler, a pair of rectangular holes for shifting side guides are pierced in the direction of breadth of the band steel on the over-guide plate 6 arranged to the inlet side of the down coiler 50, a pair of side guides 1 penetrating this rectangular holes downward are provided extendably or contaractibly on the upper surface of the over-guide plate 6, a driving means such as a screw shaft 5 or the like to extend or contact the side guide 1 is provided, and, at the same time, a cover 11 to close the rectangular holes (6a) is provided on the upper surface of the over guide plate 6, and further is provided a driving means such as hydraulic cylinder 14 and the like to open/close the cover 11.

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 steel strip which has been finish-rolled in a hot rolling facility.

[0002]

2. Description of the Related Art FIG. 3 is a side view schematically showing a conventional steel strip winding device of a general hot rolling facility, and FIG. 4 is a plan view of FIG.

In FIGS. 3 and 4, reference numeral 51 denotes a mandrel, the driving side neck portion of which is connected to a driving device (not shown), and the front end portion of which is mounted with an outboard (not shown) supported by a mandrel support. 52a is N0.1 unit roller, 52b is N0.2 unit roller, 52c is
N0.3 unit roller, 52d is an N0.4 unit roller, which is disposed around the mandrel 51,
Each of them moves to the position indicated by the two-dot chain line due to the thickening of a. The down coiler 50 is configured by the above members, and is disposed below the pass line P. Reference numeral 60 denotes a deflector pinch roll.

[0004] A strip 40 hot-rolled by a finishing mill group (not shown) is supplied to a down coiler 50 by a deflector pinch roll 60, and a mandrel 51 and unit rollers 52a which rotate while being guided by respective guides (not shown). , 52b, 52c, and 52d, and the end is bitten and wound. When several layers of this steel strip 40 are wound, each unit roller 52a, 52b, 52c, 52d
To the position shown by the two-dot chain line, and wound around the steel strip coil 40a shown by the two-dot chain line.

[0005] The steel strip coil 40a is wound close to the required size and becomes thicker, and the rear end of the steel strip 40 is deflector pinch roll 6
Immediately before passing through the zero, the N0.1 unit roller 52a is lowered as shown in FIG. 3 to press the outer peripheral surface of the steel band coil 40a, and the tension is eliminated by passing through the deflector pinch roll 60. Wrap the back end of 40 to prevent loosening.

[0006]

In the conventional apparatus, when the rear end of the steel strip 40 is wound around the deflector pinch roll 60 when the rear end is wound, as shown by a two-dot chain line in FIG. In the direction of the width of the sheet, the sheet is wound up as it is.

[0007] For this reason, either edge portion of the steel strip 40 protrudes largely from the side surface of the wound steel coil 40a, and its product value is reduced.

[0008] Further, when the steel strip coil 40a is transported and stored, it is often turned upside down by 90 degrees, so that the edge protruding from the side face is broken, thereby deteriorating the quality and yield.

[0009]

Means for Solving the Problems The steel strip winding device of the hot rolling equipment according to the present invention is constituted as follows to solve the above-mentioned problems.

(1) At the entry side of the downcoiler disposed below the pass line on the exit side of the deflector pinch roll downstream of the strip steel hot rolling facility, when the rear end of the strip passes through the deflector pinch roll, The obi rope side guide which guides both edge parts of this is provided.

(2) The device according to (1), wherein the steel strip side guide is provided so as to be able to expand and contract in the width direction of the steel strip board.

(3) The apparatus according to (1), wherein a hole for moving a steel strip side guide is formed in a width direction of the steel strip of the overguide plate disposed on the entry side of the down coiler, and the steel strip side guide is provided. A pair of band steel side guides penetrating the moving hole downward is provided on the upper surface of the overguide plate so as to be able to expand and contract, and expansion and contraction driving means for the band rope side guide is provided. A lid to be closed is provided on the upper surface of the overguide plate, and means for opening and closing the lid is provided.

According to item (1), the leading end of the strip that has been hot-finished and rolled by the finishing mill group in the preceding process is moved by a deflector pinch roll so that its course is below the pass line. Supply to the down coiler and start winding the steel coil. Immediately before the winding of the steel strip coil to the required size, the rear end portion passes through the deflector pinch roll and swings in the sheet width direction. It is wound up while being guided by the steel strip, and the sides of the steel strip coil are aligned.

[0014] According to the mode (2), the steel strip side guide can be adapted to various types of strips having different plate widths.

According to item (3), both strip side guides are moved to both ends of the strip side guide moving holes by the expansion and contraction driving means for the strip side guides, and the gap therebetween is maximized, and the deflector is extended. The steel strip is supplied to a mandrel while being guided by an overguide plate by a pinch roll, and winding is started. Immediately before the strip coil is wound close to the required size and the rear end of the strip passes through the deflector pinch roll, the both side guides are connected to both edges of the strip by the expansion / reduction driving means of the strip side guide. The strip is moved so as to form a slight gap, and the edges of the strip that are going to swing through the deflector pinch roll and swing in the sheet width direction are wound up while being guided by both strip side guides. Align the sides of the coil. At the start of winding of the steel strip, after moving the steel strip side guide to both ends of the steel strip side guide moving hole and expanding it, the lid for closing the steel strip side guide moving hole is moved downward by the lid opening / closing drive means. To prevent the strip steel side guide moving hole from closing, thereby preventing the winding start from being impossible due to the collision between the leading end of the steel strip guided by the overguide plate and the band steel side guide moving hole.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a winding apparatus for hot rolling equipment according to the present invention.

[Embodiment] FIG. 1 is a side view schematically showing a steel strip winding device of a hot rolling facility according to an embodiment of the present invention, and FIG. 2 is a plan view of FIG. The same members and parts as those of the conventional device are denoted by the same reference numerals, and redundant description will be omitted.

In FIGS. 1 and 2, reference numeral 6 denotes an overguide, which is provided with a pair of square holes 6a. Is rotatably mounted on a steel strip winding device by a hydraulic cylinder (not shown). Both square holes 6a can be integrated in the plate width direction.

A slide rail 4, a miter gear 9 and a hydraulic motor 10 are fixedly mounted on the upper surface of the overguide 6, and a screw shaft 5 having a right-hand thread 5a and a left-hand thread 5b is fixed by the hydraulic motor 10 and the miter gear 9. The shaft is attached to rotate. A right-handed nut 2a and a left-handed nut 2b are screwed to the right-handed screw portion 5a and the left-handed screw portion 5b of the screw shaft 5, and sliders 3 fixed to the right-handed nut 2a and the left-hand screw nut 2b respectively slide. It is slidably fitted to the rail 4.

On the exit side of the slider 3, both square holes 6 are provided.
A pair of side guides 1 penetrating downward through the inside a and moving in the plate width direction are fixedly provided. Reference numeral 11 denotes a lid, which is fitted to a rotating shaft 12 so as to open and close both square holes 6a, and a hydraulic cylinder 14 is mounted on the rotating shaft 12 via an arm 13. It should be noted that an electric motor or the like can be used instead of the hydraulic motor 10 as the expansion / contraction driving means of the side guide 1. Similarly, an electric motor or the like can be used instead of the hydraulic cylinder 14 as the lid opening / closing drive means.

Reference numeral 53a denotes an N0.1 guide that moves together with the N0.1 unit roller 52a, and 53b denotes an N0.2 unit roller 52.
N0.2 guide that moves together with b, 53c is an N0.3 guide that moves with the N0.3 unit roller 52c, 53d is a bottom guide that moves with the N0.4 unit roller 52d, 56
Is a fixed bottom guide, and 59 is a gate.

[Operation and Effect] The screw shaft 5 is rotated by the hydraulic motor 10, and both side guides 1 are moved in the square hole 6a in the direction of both edges of the strip 40 as shown by the two-dot chain line in FIG. To make it fully open.
1, the lid 11 is closed by the hydraulic cylinder 14 so that the tip of the square hole 6a does not enter.
Close.

The leading end of the strip 40, which has been hot-finished and rolled by a finishing mill group (not shown) in the preceding step, is overturned by a deflector pinch roll 60 and a gate 59 so as to be moved below the pass line P. The guide is supplied to the down coiler 50 while being guided by the guide 6, the fixed bottom guide 56, and the bottom guide 53d.
The leading ends of the rotating mandrel 51 and each of the unit rollers 52a, 52b, 52c, 52d are bitten and wound by b and 53c.

When several layers of the steel strip 40 are wound, as shown by a two-dot chain line in FIG.
b, 52c, 52d and respective guides 53a, 53b,
Separate 53c and 53d from mandrel 51.

Then, the overguide 6 is turned upward as shown by a two-dot chain line in FIG. 1 by turning the turning shaft 7 by a hydraulic cylinder (not shown) according to the winding thickness of the steel strip coil 40a. The two lids 11 are shown by two-dot chain lines in FIG. 1 by rotating a rotating shaft 12 by a hydraulic cylinder 14 so that the two side guides 1 do not come into contact with the side guides 1 when the width is adjusted. Lifted from the square hole 6a as shown in FIG.
It is wound around a steel strip coil 40a indicated by a chain line.

Immediately after the winding of the steel strip coil 40a is completed and immediately before the rear end of the steel strip coil 40a comes off from the deflector pinch roll 60, the screw shaft 5 is rotated by the hydraulic motor 10 so that both side guides 1 2 are moved so as to form a slight gap with both edge portions of the steel strip 40, and the rear end portions of the steel strip 40 which try to swing in the width direction of the sheet through the deflector pinch rolls 60 are pulled out of FIG.
As shown in (1), winding is performed while being guided by both side guides 1, and the side surfaces of the strip steel coil 40a are aligned.

The present invention is not limited to the above embodiment, and it goes without saying that various changes such as changes in the structure and shape of each part are possible without departing from the spirit of the present invention.

[0028]

The strip winding device for the hot rolling equipment according to the present invention has the following effects. According to the invention of claim 1, on the entry side of the downcoiler, by providing the steel strip side guide that guides both edges of the steel strip when the rear end of the steel strip passes through the deflector pinch roll, Even if the rear end of the strip passes through the deflector pinch roll and tries to swing in the sheet width direction, both edges can be wound up while being guided by the strip side guides. It becomes possible to align. Therefore, when the steel strip coil is transported and stored, even if it is turned upside down by 90 degrees, the protruding edge portion is not broken and the quality and yield can be improved.

According to the second aspect of the present invention, the strip steel side guide is provided so as to be expandable and contractible in the width direction of the strip rope.
In addition to the effects of the first aspect, it is possible to cope with strips having various plate widths.

According to the third aspect of the present invention, a hole for moving the strip side guide is formed in the overguide plate on the down coiler entrance side, and the hole is moved through the hole for moving the strip side guide in the width direction of the strip. A pair of strip guides is provided on the upper surface of the over-guide plate, and expansion and contraction driving means for the strip guides is provided. It is possible to freely change the interval with the side guide moving holes, and it is possible to cope with strips of various plate widths, and to close the band steel side guide moving holes on the upper surface of the overguide plate. By providing the lid and providing the opening / closing drive means for the lid, the strip steel side guide is moved to both ends of the strip steel side guide moving hole at the start of the winding of the strip and then expanded. It is possible to close the steel side guide moving holes, it is possible to prevent the winding start impossible due to the collision of the tip and strip side guides move holes in the strip, which is guided by the over-the guide plate.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of a steel strip winding device of a hot rolling facility according to the present invention.

FIG. 2 is a plan view showing a state in which the steel strip taken along line II-II of FIG. 1 has passed through a deflector pinch roll.

FIG. 3 is a side view schematically showing a conventional steel strip winding device of a general hot rolling facility.

FIG. 4 is a plan view of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side guide 2a Right screw nut 2b Left screw nut 3 Slider 4 Slide rail 5 Screw shaft 6 Overguide 6a Square hole 7,12 Rotating shaft 10 Hydraulic motor 11 Lid 14 Hydraulic cylinder 40 Strip steel 40a Strip steel coil 50 Down coiler 60 Deflector Pinch roll

Claims (3)

[Claims] 1. A downwinder arranged downstream of a deflector pinch roll on the downstream side of a hot strip rolling facility on the entry side of a down coiler, when the rear end of the strip passes through the deflector pinch roll, A steel strip winding device for a hot rolling facility, comprising a steel strip side guide for guiding both edge portions. 2. The apparatus according to claim 1, wherein said strip side guide is provided so as to be able to expand and contract in the width direction of the strip. 3. The apparatus according to claim 1, wherein a hole for moving the steel strip side guide is formed in a width direction of the steel strip of the overguide plate disposed on the downcoiler entrance side. A pair of band steel side guides penetrating downward is provided on the upper surface of the overguide plate so as to be able to expand and contract, and a driving means for expanding and contracting the band rope side guide is provided, and a lid for closing the hole for moving the band steel side guide. Is provided on the upper surface of the over-guide plate, and a drive means for opening and closing the lid is provided.