JPH0242281B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a vertical rolling mill that is capable of performing optimal width reduction according to plate thickness.

[Conventional purpose] Conventionally, when width reduction is generally performed with a vertical rolling mill,
If rolls with different diameters are selected depending on the thickness of the material to be rolled, changing the rolls will be complicated and the operating rate will drop, so strips of all thicknesses are rolled down in width using rolls of the same diameter. Ta.

[Problems to be Solved by the Invention] However, with the above conventional means, there is no compensation when the rolled material is thick, but when the rolled material is thin, the possible width reduction amount is small, and therefore the width reduction force is also extremely small. In width reduction from thick to thin materials depending on the roll diameter, there was a problem in that it was difficult to set the reduction for thin materials.

In view of the above-mentioned circumstances, the present invention aims to perform width reduction with optimal rolling force settings in response to changes in plate thickness, thereby improving rolling efficiency and, by extension, production efficiency. This is what was done.

[Means for Solving the Problems] In the present invention, a piston rod fitted in a small diameter cylinder is fixed so as to be able to slide in the width direction of the rolled material, and a vertical roll is attached to the tip of the rod on the side of the rolled material. , so that the small-diameter cylinder can be moved in the width direction of the rolled material, it is fitted into a large-diameter cylinder that is movable in the width direction of the rolled material, and depending on the thickness of the rolled material, it is either rolled with the large-diameter cylinder or rolled with the small-diameter cylinder. It is now possible to choose whether to press down with a cylinder.

[Function] Therefore, in the present invention, when the material to be rolled is a thin material, the rolling force may be small and the width reduction is performed by a small diameter cylinder, whereas in the case of a thick material, a large rolling force is required and the width is reduced by a small diameter cylinder. Width reduction is performed by the cylinder.

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

As shown in the figure, required notches 3 are provided at the positions of two opposing side plates of each side guide 1 disposed on both sides in the width direction of the rolled material, and vertical rolls 4 are inserted into and removed from each of the notches 3. A rolling down mechanism 5 for tilting the vertical roll 4 is attached to the side guide 1 so as to protrude outward from the side guide 1, and a tilting mechanism 6 for tilting the vertical roll 4 is connected to the rolling down mechanism 5.

The lowering mechanism 5 includes a main body case 7 fixedly installed outside the notch 3 of the side guide 1, and the vertical roll 4.
A vertical roll 4 is provided with a support part (not shown) at the tip for supporting the vertical roll 4 and is slidable and rotatable within the main body case 7 via a bush 8 and a worm wheel 9, and a rear part of the vertical roll 4. Two small-diameter and large-diameter cylinder chambers 10 and 11 formed in the end, and a small-diameter cylinder chamber 10 and a large-diameter cylinder chamber 11 at the tip.
The rear end is slidably inserted into the main body case 7.
It consists of small-diameter and large-diameter pistons 13 and 14 supported at the rear end of the piston so that their stroke can be adjusted.

The tilting mechanism 6 includes a worm wheel 9 connected to the outer periphery of the large diameter cylinder chamber 11 with a key 15, a worm 12 meshed with the worm wheel 9,
It consists of a motor (not shown) for driving the worm 12.

In such a configuration, when rolling down the edge portion of the rolled material, pressure liquid is supplied to the side opposite to the hard roll of the large diameter cylinder chamber 11 provided at the rear end of the rolling down mechanism 5. When pressurized liquid is supplied to the opposite side of the vertical roll in the large diameter cylinder chamber 11, the vertical roll 4 moves in a direction away from the large diameter cylinder chamber 11 supported in a stroke adjustable manner. ) The vertical roll 4 attached to the shaft moves forward at high speed. If the rolled material is thick, just move forward and
Eventually, it comes into contact with the width end of the rolled material and starts rolling down. On the other hand, in the case of a thin material, the large diameter piston 14 is stopped until just before the vertical roll 4 comes into contact with the rolled material, and the large diameter piston 14 is stopped until the vertical roll 4 comes into contact with the rolled material. The reduction by the reduction force is performed by moving the small diameter piston 13 forward. At this time, when the rolled material has a certain angle with respect to the horizontal line due to the influence of a looper (not shown), etc., the motor (not shown) in the tilting mechanism 6 is driven to drive the worm 12. , small diameter cylinder chamber 1
A worm wheel 9 connected to the outer periphery of the worm wheel 1 with a key 15 is rotated. As a result, the vertical roll 4
Tilt it so that it is perpendicular to the rolling direction of the rolled material.

In the above, since the vertical rolls 4 can be moved in and out separately from the movement of the side guides 1, it is possible to actively reduce the width of the rolled material, and delicate adjustments to the amount of reduction can be easily made by supplying pressurized liquid. can be done.

Note that the present invention is not limited to the above-described embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

[Effect of the invention] According to the vertical rolling mill of the present invention, the rolling mill corresponds to the plate thickness,
Since it is possible to perform width reduction with the optimum rolling force for both thick and thin materials with the same roll diameter, excellent effects can be achieved in that sheet width accuracy can be effectively improved and edge drop can be effectively improved.

[Brief explanation of drawings]

The figure is an explanatory diagram of the present invention. In the figure, 4 is a vertical roll, 5 is a lowering mechanism, 6 is a tilting mechanism, 10 is a small diameter cylinder chamber, 11 is a large diameter cylinder chamber, 9 is a worm wheel, 12 is a worm, 1
3 is a small diameter piston, 14 is a large diameter piston, and 15 is a key.

Claims (1)

[Claims] 1. A rod is fixed to a piston fitted in a small diameter cylinder so that it can slide in the width direction of the rolled material, a vertical roll is attached to the tip of the rod on the side of the rolled material, and the small diameter cylinder is moved in the width direction of the rolled material. The piston was fitted into a large-diameter cylinder that was movable in the widthwise direction of the rolled material, and a piston that was fitted in the large-diameter cylinder and slidable in the widthwise direction of the rolled material was fixed to the small-diameter cylinder. A vertical rolling mill characterized by: