JPH069681Y2 - Edger - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an edger capable of selecting a roll having a diameter corresponding to the thickness of a strip.

[Prior Art] Generally, when an edger is provided between stands of a finish rolling mill, tension is applied to the strip by using a looper to prevent the strip from buckling and the strip is reduced in width.

[Problems to be Solved by the Invention] In the above-described conventional method, when rolls having different diameters are selected and work is performed corresponding to the strip thickness, the roll replacement work becomes complicated and the operation rate decreases. The strips of all plate thicknesses are rolled down by rolls of the same diameter, so the rolling down efficiency was poor.

In view of such circumstances, an object of the present invention is to make it possible to perform width reduction by selecting a roll diameter corresponding to the strip thickness without performing complicated roll replacement work.

[Means for Solving the Problems] In the present invention, a horizontal shaft is fitted in a frame whose axis extends in the width direction of the strip so as to be rotatable about the axis and to move back and forth in a direction parallel to the axis. At most, a yoke fixed to the strip end portion of the horizontal shaft is attached with a frame body which is rotatable in a substantially horizontal direction via a vertical shaft, and a plurality of vertical rolls having different diameters are arranged on the frame body. .

[Operation] Therefore, in the present invention, by rotating the horizontal shaft, the frame is rotated to a predetermined position in accordance with the inclination angle of the strip, and the frame body is rotated substantially in the horizontal direction, so that the plate thickness of the strip is increased. And a vertical roll corresponding to the inclination is selected.

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

1 to 4 show an embodiment of the present invention.

On both sides in the width direction of the strip S, it is disposed a cylindrical frame 2 to which the support base and the axis 1 ₁ attached to the 1 extending in the strip width direction, in the cylindrical frame 2 forward and backward, a direction parallel to said axis l ₁ dynamic A bush 3 is freely fitted into the bush 3, and a horizontal shaft 4 is freely rotatable around the axis l ₁ in the bush 3.
And a bearing 6 is fitted on the upper and lower parts of the yoke 5 fixed to the strip end side of the horizontal shaft 4, and a vertical shaft 7 is rotatably fitted on the bearing 6 to move the vertical shaft 7 vertically. Frame part
8 and 9 are fixed, and a plurality of bearings 10 are fitted to the frame bodies 8 and 9, respectively, and a plurality of bearings 10 having different diameters D ₁ , D ₂ and D ₃ (D ₁ <D ₂ <D ₃ ) are provided. The vertical rolls 11, 12 and 13 are rotatably fitted to each other, and a shaft 17 supported by a drive unit 15 and a bearing 16 is attached to a support plate 14 integrally fixed to the lower yoke 5 of the yoke 5.
A worm 18 fixed to the shaft 17 is meshed with a worm wheel 19 provided on the outer circumference of the frame 9 so that the drive device 15 can rotate the frame 9, the vertical shaft 7, and the frame 8. To

A hollow portion is provided behind the horizontal shaft 4, a piston rod 21 is fitted in the hollow portion, and oil chambers 22, 23 are provided in the hollow portion,
The rear end of the piston rod 21 is the boss of the rear end of the cylindrical frame 2.
The worm wheel 25 is fixed to the cylindrical frame 2 at a desired position in the cylindrical frame 2 so as not to move in a direction parallel to the axis ₁₁ and the horizontal shaft 4 is fitted into the worm wheel 25. Key between 4 and worm wheel 25
The rotation of the worm wheel 25 with the interposition of 26
To be able to tell.

A vertical shaft 29 is fitted to a frame body 27 fixed to the outer side of the cylindrical frame 2 via a bearing 28, a worm 30 is fixed to the vertical shaft 29 and the worm 30 is fitted to the worm wheel 25, and A drive device 31 is connected to the shaft 29.

In the drawing, 1 ₂ is the axis of the vertical rolls 11, 12 and 13.

When the width reduction of the strip S is performed by the edger having the above configuration, the work is performed as follows. That is, when the edger is disposed between the finishing stands and the strip S is pushed upward by the looper to apply the tension, the strip S is inclined at the required angle in the longitudinal direction. Therefore, in this case, the worm 30 first drives the drive device 31, rotated by a predetermined angle to the horizontal shaft 4 via the worm wheel 25, the longitudinal axis 1 ₂ strips S of the vertical rolls 11, 12, 13 Adjust the inclination of the vertical roll so that it is perpendicular to it.

Further, the driving device 15 is driven to rotate the worm 18 via the shaft 17, and the worm 18 strips the frame body 9, the vertical shaft 7, the frame body 8 and the vertical rolls 11, 12, 13 via the worm wheel 19. It is rotated in the longitudinal direction and the vertical roll used for width reduction is positioned on the strip side. For example, when the strip S is thin, a small diameter vertical roll 11 is positioned on the strip side as shown in FIG. 3, and when the strip S is thick, a large diameter vertical roll 13 is positioned on the strip side. If the thickness is between the thin and thick materials, the vertical roll 12
To the strip side.

When the inclination of the vertical roll is adjusted and a predetermined vertical roll is located at a required position for width reduction, pressure oil is supplied to the oil chamber 22 to move the vertical roll through the horizontal shaft 4, the yoke 5, etc. to the strip side. In the case shown in FIG. 3, the roll gap between the left and right vertical rolls 11, 11 is adjusted so that the strip S can be reduced in width.
When the strip S is fed between the vertical rolls 11, 11, the strip S is width-reduced to a predetermined plate width by the left and right vertical rolls 11, 11.
When the strip S is thin, the vertical rolls 11 and 11 perform the width reduction, when the strip S is thick, the vertical rolls 13 and 13, and when the strip S is between the thin and thick strips, the vertical rolls 12 and 12, respectively.

As described above, since it is possible to select a vertical roll having a predetermined diameter in accordance with the strip plate thickness, it is possible to perform optimum width reduction.

Further, since the inclinations of the vertical rolls 11, 12, 13 can be adjusted according to the inclination of the strip S, the vertical rolls 11, 12, 13 are positioned so that they are always orthogonal to the plane of the strip S when viewed from the side of the strip S. Can be made. For this reason, no slip occurs between the strip side end and the surface of the vertical roll used during width reduction, and the strip side end and the vertical roll are not scratched.

The embodiments of the present invention are not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made without departing from the scope of the present invention.

[Advantage of Invention] According to the edger of the present invention, since the roll having the diameter corresponding to the plate thickness can be selected, the strip width can be efficiently reduced without performing complicated roll exchange, and the plate width accuracy can be improved. If the inclination of the strip is changed, the inclination of the vertical roll is adjusted according to the inclination of the strip, and the vertical roll is always viewed from the side of the strip. Since it can be positioned so as to be orthogonal to the surface of, the strip does not occur between the strip side end and the vertical roll surface during width reduction, and therefore the strip side end and the vertical roll surface are not scratched, etc. Various excellent effects can be achieved.

[Brief description of drawings]

FIG. 1 is an explanatory view of an embodiment of the edger of the present invention, and FIG.
1 is a view in the direction of arrow II in FIG. 1, FIG. 3 is a view in the direction of arrow III in FIG. 1, and FIG. 4 is a longitudinal sectional view in the vicinity of a vertical shaft mounting portion of a yoke. In the figure, 2 is a cylindrical frame (frame), 4 is a horizontal axis, 5 is a yoke, 7 is a vertical axis, 8 and 9 are frame bodies, 11, 12 and 13 are vertical rolls, 1
5 driving device, 19 denotes a worm wheel, 1 _1, 1 ₂ axis.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tsune Honjo 1 Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Ishi, Kawashima Harima Heavy Industries, Ltd. Yokohama second factory (72) Ikuo Fujishima Isogo-ku, Yokohama-shi, Kanagawa Shin-Nakahara-cho No. 1 Ishikawajima Harima Heavy Industries Co., Ltd. Yokohama No. 2 Factory (72) Inventor Kuniyoshi Kazama Shin-Nakahara-cho No. 1 Shin Nakahara-cho Yokohama, Kanagawa Pref. Ishi Kawashima Harima Heavy Industries Co., Ltd. Yokohama No. 2 Factory (72) devised Yasushi Igarashi 5-3, Tokai-cho, Tokai-shi, Aichi Pref.Nippon Steel Works, Nippon Steel (72) Inventor Mitsuo Torii 5--3, Tokai-cho, Tokai-shi, Aichi Pref., Nippon Steel Co., Ltd. (56) References JP-A-59-166308 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A horizontal shaft is fitted in a frame whose axis extends in the width direction of the strip so that the horizontal axis is rotatable about the axis and is movable back and forth in a direction parallel to the axis. An edger characterized in that a frame fixed to a side is attached to a frame body which is rotatable in a substantially horizontal direction via a vertical shaft, and a plurality of vertical rolls having different diameters are arranged on the frame body.