JPS5912081Y2 - rolling mill - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a rolling mill in which a shape detection roll is provided between a rolling roll and a take-up roll.

As is well known, the shape detection roll is made up of divided rolls arranged in series in a single roll shape, and detects the winding tension distribution in the width direction of the strip fed from the rolling roll for each divided roll. The shape of the strip can be grasped by using this method.

This shape detection roll has no problems when used with relatively thick strips or strips with high tensile strength, but when used with thin aluminum strips, for example, there is a problem of scratches on the surface. .

The rolling mill according to the present invention is provided with one or more deflector rolls movable up and down in the vicinity of the shape detection roll, and by vertically positioning the deflector rolls, the strip sent from the rolling roll is directed against the shape detection roll. If there is no problem with using the shape detection roll, the deflector roll is set in the normal position and the strip is brought into contact with the circumferential surface of the shape detection roll. On the other hand, if there is a problem with using the shape detection roll, raise the deflector roll to prevent the strip from coming into contact with the circumferential surface of the shape detection roll, thereby preventing scratches caused by the shape detection roll. This is what I am trying to do.

Hereinafter, the present invention will be specifically explained with reference to the illustrated embodiments.

FIG. 1 schematically shows the overall structure of the rolling mill.

In the figure, 1 is a roll around which a strip to be rolled 2 is wound;
3a and 3b are work rolls, 4a and 4b are support rolls for the work rolls 3a and 3b, and 5 is a take-up roll for the strip 2.

A deflector roll 6 is placed between the roll 1 and the rolling roll constituted by rolls 3a, 3b and 4a, 4b.
a to 6d are provided, and a shape detection roll 8 and a pair of deflector rolls 9a and 9b are provided between the rolling roll and the take-up roll 5.

The pair of deflector rolls 9a and 9b shown above are each provided between the shape detection roll 8 and the take-up roll 5 and in the vicinity of the shape detection roll 8. They may be provided in the middle of the rolls and near the shape detection roll 8, or may be one or three or more.

The deflector rolls 9a, 9b are vertically movable by guide means 10a, 10b provided vertically, respectively.

That is, as shown in FIG.
Guide means having vertical guide grooves 11 are placed on each side of the deflector roll 9b (or 9a), and bearing boxes 12, 12 provided on both sides of the deflector roll 9b are fitted into the guide grooves 11 of the guide means. , the above bearing box 12. 12 can be moved in the vertical direction by hydraulic cylinders 13, 13 installed below, respectively.

The strip 2 sent from the rolling roll passes through the shape measuring roll 8, the upper side of one deflector roll 9a, and the lower side of the other deflector roll 9b, and is wound onto the winding roll 5.

In FIG. 1, deflector rolls 9a, indicated by solid lines,
9b indicates the normal state position.

That is, when the dewarector rolls 9a, 9b are in this position, the strip 2 fed from the rolling rolls is
passes through while contacting the circumferential surface of the shape measuring roll 8.

On the other hand, when rolling a thin aluminum strip, for example, each deflector roll 9a is placed at the position shown by the chain line in the figure.
is moved by driving the hydraulic cylinder 13.

Then, the strip 2 fed from the rolling rolls will be
It passes in a raised state from the shape detection roll 8.

Therefore, in this case, the shape detection roll 8 is not involved in the rolling process at all, and the occurrence of defects thereby is prevented.

As detailed above, the rolling machine according to the present invention is equipped with deflector rolls that can be raised and lowered in the vicinity of the shape detection roll, so the use or non-use of the shape detection roll can be controlled depending on the type of strip. Since it can be easily and freely selected, troubles caused by the shape detection roll can be prevented, and the intended purpose can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram of a rolling mill according to an embodiment of the present invention;
FIG. 2 is a schematic explanatory diagram of the deflector roll, the guide means, and the hydraulic cylinder as seen in the direction of the arrow II-II in FIG. 1...Roll, 2...Strip, 3
a, 3b...Work roll, 4a, 4b...
...Support roll, 5...Take-up roll, 6a-6
d... Deflector roll, 8... Shape detection roll, 9a, 9b... Deflector roll, 10a, 10b... Guide means, 11...
...Guide groove, 12...Bearing box, 13...
...Hydraulic cylinder.

Claims (1)

[Scope of utility model registration request] In a rolling mill in which a shape detection roll is provided between a rolling roll and a take-up roll, one or more deflector rolls are provided movably up and down in the vicinity of the front and back of the shape detection roll, and by vertically positioning the deflector rolls, A rolling mill characterized in that a strip sent from a rolling roll can freely approach and separate from the shape detecting roll.