JP2555293Y2 - Steel plate rolling guide - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel sheet rolling guide installed between stands of a continuous hot rolling apparatus.

[0002]

2. Description of the Related Art For example, a steel sheet rolling guide installed between stands of a continuous hot rolling apparatus is used to adjust a pass line of a steel sheet being rolled or to correct a meander or a camber to maintain a smooth rolling operation. It is positioned as a key facility as an extremely important device for maintaining good shape and size quality of steel sheets. FIG. 3 shows a conventional steel sheet rolling guide, in which a pair of guide members 1 for guiding both sides in the width direction of a steel sheet (strip) S is provided with a sliding plate 2 capable of expanding and contracting the guide width according to the width of the steel sheet. A screw shaft 4, which is placed on the upper side and forms a screw 3 symmetrically and fixed at a height position, is screwed to a screw nut 5 provided at a lower portion of the guide member 1.

[0003] One of the screw shafts 4 is rotated by the rotation of the drive motor 6, and a sprocket (not shown) provided at an end of the screw shaft 4, a chain 8 and an end of the other screw shaft 4 are provided. The rotation of the screw shaft 4a is simultaneously transmitted to the screw shaft 4b via the sprocket 7 to displace the screwing position of the screw nut 5 for screwing each screw shaft 4, and a guide member having a lower portion mounted on the screw nut 5 1 is moved in parallel in the width direction of the steel sheet. As shown in FIGS. 3A and 3B, the screw nut 5 is mounted on the guide member 1. As shown in FIGS.
Liner 10 for inverted V-shaped guide 12 of leg 9 provided below
Is slidably mounted on the sliding plate 2, a screw nut holder 11 is fixed to the front and rear lower ends of the legs 9, and the integrated screw nut 5 can be rotated and locked in the center of the screw nut holder 11. It is fitted and attached to the.

[0004]

Generally, this steel sheet rolling guide is usually replaced periodically based on the wear amount of the screw nut, sprocket and chain. Liner 1 for guide 12
0, the sliding position of the sliding plate 2 causes the height position of the guide member 1 to drop, and the screw member 4 and the screw member 5 are fixed to the screw shaft 4 via the screw nut holder 11 and the screw nut 5 fixed to the front and rear lower ends of the leg portions 9. A part of the load is applied to restrain the rotation, and this increases with the progress of the sliding wear, and the wear of the screw nut and the screw shaft progresses rapidly, and further, the screw holder peaks the screw nut mounting portion. This causes problems such as the occurrence of warp damage frequently, and the necessity of exchanging them temporarily every time. Further, the adjustment of the parallelism of the guide member 1 involves a complicated operation performed by once rotating the lock of the screw nut 5 by the key and the cotter and then adjusting the rotation.

[0005]

According to the present invention, as shown in one embodiment of the present invention shown in FIG. 1, a pair of guide members 1 for guiding both sides in the width direction of a steel sheet S are guided according to the width of the steel sheet. A screw shaft 4, which is mounted on a sliding plate 2 so as to be slidable in width and has a screw 3 formed symmetrically and fixed at a height position, is screwed into a screw nut provided at a lower portion of the guide member 1. The screw nut provided on the guide member 1 is detachably attached to the left and right 2
The steel plate rolling guide is characterized in that the steel plate rolling guide is divided into 30a and 30b and is attached to the lower portion of the guide member 1 so as to be able to move only up and down.

[0006]

In the embodiment shown in FIG. 1, the guide member 1 has a leg portion 9 at the lower part, an inverted V-shaped guide 12 is formed on the lower surface, a liner 10 is fixed at the center, and the lower surface is It is slidably mounted. A screw nut holder 32 is detachably attached to the front and rear lower ends of the legs 9, and an upwardly-opening elevating guide 31 (an axial position of the screw shaft is adjustable at the center of the screw nut holder 32. ), And screw nuts 30a and 30b divided into two parts on the left and right sides are set to be inserted upward so as to be movable only up and down.

That is, as shown in the embodiment of FIG. 1, the guide member 1 is formed by the sliding wear of the lower portion of the guide member 1, for example, the liner 10 of the inverted V-shaped guide 12 of the leg 9 thereof and the sliding plate 2. Even if the height position of 1 is lowered, only the screw nut holder 32 fixed to the front and rear lower ends of the leg portions 9 is lowered, so that a part of the load is not applied to the screw nut 30a (30b), so that the height position is predetermined. Without restricting the relative rotation between the screw shaft 4 that is fixedly supported by the position and the screw nut 30a (30b) that can only move up and down, it is possible to surely prevent the wear of the screw nut 30a.

[0008] Further, the screw nut holder 11 does not suffer any upward warpage damage at the peak of the screw nut mounting portion. Further, the screw nuts 30a, 30
Since b is divided into two right and left parts, the parallelism of the guide member 1 can be adjusted only by adjusting the position of the lifting guide 31 in the axial direction of the screw shaft based on the screw position with the screw shaft before the upper insertion setting into the screw nut holder 32. It can be implemented simply, quickly and with high precision.

[0009]

[Effects of the Invention] The present invention provides a smooth guide width setting of a guide member without applying a load of a guide member to a member for supporting a screw nut, for example, a screw nut holder, a screw nut itself, and a screw shaft. Can be implemented, and these wear exchanges are extended for a long time. The parallelism adjustment of the guide members 1a and 1b at the time of this exchange is performed by inserting the right and left two-part type screw nut, which is a predetermined screwing position with the screw shaft, into the elevating guide by inserting the elevating guide 31 into the screw shaft shaft. By simply adjusting the position in the direction, it is possible to easily and quickly perform the processing with high accuracy.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a main part showing one embodiment of the present invention (a).
Is a side view, and (b) is a front view.

FIG. 2 is a bird's-eye view showing the entire steel plate guide to which the present invention is applied;

FIG. 3 is an explanatory view of a main part showing a conventional example, (a) is a side view,
(B) is a front view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide member 2 Sliding plate 4 Screw shaft 30a, 30b Screw nut

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Kiyotaka Tsuji 1 Nishinoshima, Oita-shi, Nippon Steel Corporation Inside Nippon Steel Works (72) Inventor Joji Nagano 1 Nishi-nosu, Oita-shi, Oita Nippon Steel Corporation Shikisha Oita Works

Claims (1)

(57) [Scope of request for utility model registration] 1. A pair of guide members for guiding both sides in the width direction of a steel plate are mounted on a slide plate such that the guide width can be enlarged and reduced in accordance with the width of the steel plate, and screws are formed symmetrically. And screwed the screw shaft fixed at the height position to the screw nut provided at the lower part of the guide member,
A steel plate rolling guide, wherein a screw nut provided on a guide member is detachably divided into two parts, and the screw nut is mounted on a lower portion of the guide member so that it can only move up and down.