JP2533708B2 - Winding device for hot rolled steel sheet - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot-rolled steel sheet winding device.

[0002]

2. Description of the Related Art A hot-rolled steel sheet winding device is installed subsequent to a cooling device on the exit side of a hot-rolling mill, guides the tip of the steel sheet to a regular pass line, and prevents meandering during passage. A side guide, a pinch roll for adjusting tension during winding, and a winding machine such as a down coiler for winding a steel plate on a coil are sequentially provided.

Therefore, the side guides to which the present invention is applied are generally those conventionally introduced in JP-A-55-24719.

This side guide is composed of a first guide frame G1 and a second guide frame G2 as shown in FIGS. The first guide frame G1 introduces the front end of the steel plate, which opens in a V shape and enters into the second guide frame G2 forming a regular pass line, and the opening of the front end exceeds the maximum width of the target steel plate. Set to allowance and the rear part is second
The guide frame G2 is connected so that it can move in parallel with the opening / closing operation.

The second guide frame G2 has a rotary shaft as a vertical shaft, and a plurality of guide rolls GR coaxially mounted on the vertical shaft are arranged as shown in the drawing. It has a parallel shift mechanism HS for adjusting the guide width.

The guide roll GR is rotated by a rotary drive marter mechanism DM, and a cushioning air cylinder mechanism A is used.
It was supported by S.

[0007]

The problems with the above-mentioned conventional side guides are, in particular, the damage of the guide roll in the second guide frame and the accident of the tip end of the steel plate jumping off from the guide roll.

That is, the installation of the vertical axis guide rolls on the guide frame cannot increase the diameter thereof, and therefore the guide between the guide rolls of the steel plate tip portions is performed by the steep direction changing steel plate tip corners and the guide roll outer periphery. Since the collision is performed by violent collision with the surface, the collision part on the outer peripheral surface of the guide roll is locally greatly damaged and frequently replaced.

Further, since the vertical axis guide rolls are arranged at right angles to the pass line of the steel plate, the tip end of the steel plate jumps up between the guide rolls, causing an accident.

In addition to this, problems such as a complicated buffer mechanism for supporting the guide rolls, installation of a drive mechanism and the like and maintenance thereof are raised. The present invention provides means for solving these problems.

[0011]

The features of the present invention are as follows. (1) In a winding device for a hot-rolled steel sheet, which is provided with a side guide, a pinch roll, and a winding machine in this order following the cooling device on the outlet side of the hot rolling mill, in which the rotary shaft is the horizontal axis and the tip is A winding device for a hot-rolled steel sheet, wherein a plurality of guide rolls, each having an umbrella-shaped roll whose center is the rotation center, are mounted on the side guide.

(2) In a hot-rolled steel sheet winding device in which a side guide, a pinch roll, and a winder are sequentially provided after a cooling device on the outlet side of the hot rolling mill, the rotary shaft is set to the horizontal axis. A plurality of guide rolls each having an umbrella-shaped roll with the center of rotation as the top at the tip are arranged on the side guides, and a plurality of fins are provided along the rear surface of the umbrella-shaped roll or the circumference of the rotation axis. A device for winding a hot-rolled steel sheet, characterized in that a nozzle for rotating a umbrella roll by colliding a fluid with this fin is provided.

(3) In a winding device for a hot-rolled steel plate in which a side guide, a pinch roll, and a winder are sequentially provided after a cooling device on the outlet side of the hot rolling mill, an angle of a rotary shaft can be adjusted. A plurality of guide rolls each having an abscissa roll and an umbrella roll with the center of rotation as the apex at the tip thereof are arranged on the side guides, and a plurality of guide rolls are provided on the rear face of the umbrella roll or along the circumference of the rotation shaft. And a nozzle for rotating the umbrella roll by colliding a fluid with the fin.

[0014]

EXAMPLES The examples shown in FIGS. 1 to 4 are continuous hot rolling mills. In the run-out table RT between the hot rolling mill (not shown) and the pinch rolls P of the down coiler C, the first guide frame 10 and the second guide frame 11 are provided on the outlet side of the cooling device (not shown). Third guide frame 1
Install 2.

The basic functions of the first guide frame 10 and the second guide frame 11 themselves are essentially the same as the conventional basic functions described above. In addition, the third guide frame 12 is the second
Following the guide frame 11, the steel plate is centered.

The second guide frame 11 and the third guide frame 12 are respectively supported by parallel opening adjustment shift mechanisms 13 and 14 for adjusting the guide width for guiding the steel sheet to the regular pass line, and inside the frames. Guide rolls 1 are installed at predetermined intervals in the longitudinal direction.

As shown in FIG. 5, the guide roll 1 provided on the second and third guide frames 11 and 12 as shown in FIG. 1 is an umbrella roll 1A, which is rotatable about the apex of the horizontal shaft 1B. As described above, the collision angle θ ° with the corner Sc of the tip of the steel plate S entering can be made small, and in addition to being rotatable, the impact at the time of collision is minimized to minimize the damage. I shall.

Further, a plurality of fins 1F are provided along the rear surface of the umbrella-shaped roll 1A (or the circumference of the horizontal axis 1B), and a fluid 1W such as water or air is made to collide with the fins from the nozzle 1N.
By rotating the umbrella-shaped roll 1A in advance at a speed equal to or higher than the approach speed before the leading end of the steel plate S enters, the impact when the leading end of the steel plate enters is minimized and the damage is extremely slight. In addition, the conventional complicated rotary drive motor mechanism is not required, and the buffer air cylinder mechanism is not required, or the size is simplified.

Further, as shown in FIG. 6, the entrance side of the umbrella-shaped roll 1A is guided to the normal pass line as long as the tip end corner Sc of the steel plate S is warped within the roll diameter range due to downward rotation. It prevents the jumping up.

Further, a simple angle adjusting mechanism K is provided in a bearing or the like that supports the horizontal shaft 1B of the umbrella-shaped roll 1A. With this installation, it is possible to easily carry out wear dispersion by changing the guide surface of the steel plate S side of the umbrella-shaped roll 1A, and to further extend its life.

[0021]

According to the present invention, with the umbrella-shaped roll having the above-mentioned structure, the collision angle with the corner of the tip of the steel plate entering the side guide can be made small, and the rotary drive motor mechanism is not required to rotate the fluid. Since it is possible, the impact at the time of collision is minimized to minimize the damage.

As long as the corners of the front end of the steel plate are warped within the roll diameter range, they are all guided to the normal pass line to prevent jumping. Further, the steel plate side guide surface of the umbrella-shaped roll can be easily changed, wear can be easily dispersed, and the life can be further extended.

[Brief description of drawings]

FIG. 1 is a cross-sectional explanatory view of an essential part showing an embodiment of the present invention.

FIG. 2 is an explanatory cross-sectional view taken along the line I-I of FIG.

FIG. 3 is an overall side view showing an embodiment of the present invention.

4 is an overall plan view of FIG. 3. FIG.

FIG. 5 is an explanatory plan view schematically showing a state of collision between the umbrella-shaped roll and the tip of the steel plate when the steel plate enters in one embodiment of the present invention.

FIG. 6 is an explanatory side view schematically showing the guide process of the steel plate tip end by the umbrella-shaped roll when the steel plate enters in one embodiment of the present invention.

FIG. 7 is an overall plan view showing an example of a conventional technique.

FIG. 8 is a cross-sectional explanatory view of a main part of FIG.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical display location B65H 23/038 B65H 23/038 A (72) Inventor Norio Seino Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa No. 1 Ishikawajima Harima Heavy Industries Co., Ltd., Yokohama No. 2 Factory (56) Reference JP-A-3-5011 (JP, A)

Claims (3)

(57) [Claims] 1. A hot-rolled steel sheet winding device in which a side guide, a pinch roll, and a winder are sequentially provided after a cooling device on the outlet side of the hot rolling mill, in which a rotating shaft is a horizontal axis and a tip thereof is provided. A winding device for a hot-rolled steel sheet, wherein a plurality of guide rolls each having an umbrella-shaped roll whose center is the center of rotation are attached to the side guides. 2. A plurality of guide rolls each having an umbrella-shaped roll having a rotation axis as a horizontal axis and a rotation center as a top at a tip end thereof are arranged in the side guides, and a rear surface of the umbrella-shaped roll or a rotation shaft. Providing multiple fins along the circumference of
The hot-rolled steel sheet winding device according to claim 1, further comprising a nozzle for rotating the umbrella roll by colliding a fluid with the fin. 3. A plurality of guide rolls, each having a horizontal axis whose rotation axis is adjustable and an umbrella roll having a center of rotation at its top at the tip thereof, are mounted on the side guides, and the umbrella roll is provided. 2. The hot-rolled steel sheet according to claim 1, wherein a plurality of fins are provided on the rear surface or along the circumference of the rotation shaft, and a nozzle is provided which causes a fluid to collide with the fins to rotate the umbrella roll. Take-up device.