JPH0669563B2 - Winding rolling equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a winding and rolling apparatus.

[Prior Art] Conventionally, as shown in FIG. 4, a multi-pass rolling mill configured to continuously pass a strip s through three passes formed by work rolls a, b, c, and d is used. Are known. According to this multi-pass rolling mill, since one rolling stand can perform rolling for three rolling stands, there is an advantage that the entire rolling equipment can be downsized and the equipment cost can be reduced.

However, in such a rolling mill, the strip s is wound around the work rolls b and c in order to apply a tension to the strip s by frictional force to reduce the rolling load (according to the different speed rolling theory of winding). During steady rolling, there is a problem that the rolling oil can be supplied only to one surface of the strip s, resulting in poor lubrication (heat clutch and other defects).

Therefore, conventionally, as shown in FIG. 5, a method has been devised in which the strip s wound around the work rolls b and c is drawn out in the line direction by using the deflector rolls e and e.

[Problems to be Solved by the Invention] However, in the case of the above method, the work roll is used.
The rolling oil supply nozzle f can be installed between b and c and the deflector rolls e and e to supply the rolling oil to both sides of the strip s, but the wrap angle of the strip s with respect to the work rolls b and c is almost obtained. There was a problem that I couldn't.

According to the present invention, the wrapping angle of the strip with respect to the work roll is maintained and the rolling oil can be sufficiently supplied.

[Means for Solving the Problems] The present invention relates to a drawing roll that draws a strip located between passes in a line direction, and a wrapping roll that presses the drawn strip against a work roll to generate a desired wrapping angle. And a configuration including and.

[Operation] Therefore, the strip located between the passes is pulled out in the line direction while maintaining the desired wrap angle.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a winding and rolling apparatus of the present invention, which is 1,2,3,4.
Is a work roll. S is the first pass formed between the work rolls 1 and 2, and the second pass is formed between the work rolls 2 and 3.
The strip is a strip which is continuously passed through a third pass formed between the work rolls 3 and 4, and is a portion located between the first pass and the second pass of the strip S. And, the portions located between the second pass and the third pass are pulled out in the line direction by the pull-out rolls 5, respectively,
The portion of the strip S located between each of the drawing rolls 5 and the second and third passes is wound with a work roll 6 to form work rolls.
Try to wrap it around a few. A moving device 8 such as a worm wheel mechanism or a cylinder is connected to the pull-out roll 5 and the winding roll 6.

In this winding and rolling apparatus, each drawing roll 5
Since the strips S located between the second passes and between the second and third passes are drawn out in the line direction, the rolling oil supply nozzles 7 can be arranged on the inlet side of each pass as shown in the drawing. The front and back sides of the strip S and the work rolls 1, 2,
Rolling oil can be supplied to 3,4. Therefore, poor lubrication between the work rolls 2 and 3 and the strip S is prevented. Further, since the winding angle of the strip S on the work rolls 2 and 3 is held by each winding roll 6, the strip S can be given a required tension, and the position of the winding roll 6 can be adjusted. Thus, the wrapping angle can be adjusted freely.

FIG. 2 shows another embodiment of the present invention, in which the vertical relationship between the drawing roll 5 and the winding roll 6 in FIG. 1 is reversed, and the portion located downstream of the first pass and the second pass is shown. The strips S are wound around the work rolls 2 and 3, respectively, and the same effects as those of the above-described embodiment can be obtained.

FIG. 3 shows still another embodiment of the present invention, which is a combination of the embodiments of FIGS. 1 and 2. That is, with respect to the portions of the strip S located between the first and second passes and between the second and third passes, one drawing roll 5 and two windings arranged upstream and downstream of the drawing roll 5, respectively. It is provided with rolls 6 and 6. Therefore, in the case of this system, the flexibility of adjusting the wrapping angle of the strip S around the work rolls 2 and 3 can be increased as compared with the above embodiment.

[Effects of the Invention] As described above, according to the present invention, the strip located between the passes is drawn out in the line direction by the drawing roll while ensuring an effective wrapping angle with respect to the work roll by the wrapping roll. Therefore, it is possible to install the rolling oil supply nozzle by utilizing the pulled-out portion, and there is no risk of poor lubrication, and a stable rolling state can be obtained.
It can have an excellent effect.

[Brief description of drawings]

FIG. 1 is an explanatory view of a winding and rolling apparatus of the present invention, FIGS. 2 to 3 are explanatory views showing another embodiment of the present invention, and FIGS. 4 and 5 show a conventional winding and rolling system. FIG. 1, 2, 3, and 4 are work rolls, 5 is a drawing roll, 6 is a winding roll, 7 is a rolling oil supply nozzle, and 8 is a guide plate.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Teruo Iura, Inventor Teruo Iura 1-1-1, Emitsu, Hachimanto-ku, Kitakyushu, Fukuoka Prefecture, Nippon Steel Co., Ltd. Third Technical Research Institute (72) Ken Ken Okuhira, Kitakyushu, Fukuoka Prefecture 1-11-1 Edamitsu, Hachiman-to-ku, Higashi-ku, Nippon Steel Co., Ltd. Inside the Yawata Works (72) Inventor Makoto Miyashita, No. 1, Toshiba-cho, Fuchu-shi, Tokyo Inside the Toshiba Fuchu factory (56) References 56-111503 (JP, A)

Claims (1)

[Claims] 1. In a one-stand multi-pass rolling mill, a drawing roll that draws out a portion located between the respective passes of the strip in a line direction, and a wrapping that presses the drawn strip against a work roll to generate a desired wrapping angle. A winding and rolling apparatus comprising: a roll.