The invention relates to a device 1 for positioning an edging roll 10 of an edging stand, comprising an edging frame 12 to which at least one balancing cylinder 14 is attached, a balancing crossbeam 16 with a drive side 18 positioned opposite of the edging frame 12, and a working side 19 positioned opposite of the drive side 18, wherein a bearing device 20 for the edging roll 10 can be attached, in particular in an interlocking manner, to the balancing crossbeam 16 on the working side 19 thereof and at least one linkage 24 is provided on the drive side 18 thereof, by which linkage the balancing cylinder 14 is in an operative connection with the balancing crossbeam 16, and at least one positioning cylinder 26 attached to the edging frame 12 can be brought into an operative connection with the bearing device (20) in the direction of a rolled material in order to position the edging roll 10 against the rolled material, wherein the compressive force generated by the positioning cylinder 26 acts on the bearing device 20 along an operational axis 28, which either intersects with the at least one linkage 24 by which the balancing cylinder 14 is operatively connected with the balancing crossbeam 16 or runs directly alongside this linkage 24.

The invention relates to a device 1 for positioning an edging roll 10 of an edging stand, comprising an edging frame 12 to which at least one balancing cylinder 14 is attached, a balancing crossbeam 16 with a drive side 18 positioned opposite of the edging frame 12, and a working side 19 positioned opposite of the drive side 18, wherein a bearing device 20 for the edging roll 10 can be attached, in particular in an interlocking manner, to the balancing crossbeam 16 on the working side 19 thereof and at least one linkage 24 is provided on the drive side 18 thereof, by which linkage the balancing cylinder 14 is in an operative connection with the balancing crossbeam 16, and at least one positioning cylinder 26 attached to the edging frame 12 can be brought into an operative connection with the bearing device (20) in the direction of a rolled material in order to position the edging roll 10 against the rolled material, wherein the compressive force generated by the positioning cylinder 26 acts on the bearing device 20 along an operational axis 28, which either intersects with the at least one linkage 24 by which the balancing cylinder 14 is operatively connected with the balancing crossbeam 16 or runs directly alongside this linkage 24.

A roll stand having work rolls mounted therein. The roll stand has at least one upper mounting rail, which is mounted on the drive-side roll stand frame and oriented in a transverse direction to a rolling line running through the roll stand. In order to be able to keep the assembly space in the roll stand over the rolling line free during rollingexcept for a roll changeand still change the roll efficiently, the upper mounting rail is configured to be moved into the rolling line and out of the rolling line, starting from the drive-side roll stand frame.

Work roll balance force setting method of rolling mill. Determine kiss roll load Pk, rolling load Pr, and rolling torque Tr of work rolls relative to work roll angle x of tip position of rolled material between start and completion of biting of rolled material using mill longitudinal rigidity coefficient K and rolling condition. Determine traction coefficient rt between work and intermediate rolls, and maximum value rtmax of rt in relation to x when hypothetical work roll balance force Pb is applied from sum P of Pk, Pr, and Pb, and Tr between start and completion of biting. Compare tolerated value rter of rt with rtmax. Work roll balance force at start of biting reset to equal to or larger than required when rt assumes maximum value rtmax, and equal to or smaller than limit based on strength of rolling mill, when rter is equal to or larger than rtmax.

A hot-rolling stand (10) for a hot-rolling mill comprises an adjusting device (12), which is intended for receiving a pair of work rolls (17) and for positioning work rolls (18, 19; 20, 21) of the pair of work rolls (17) in relation to one another to define a roll gap. In order to create a hot-rolling stand (10) that can be adapted as flexibly as possible, the adjusting device (12) is designed to interchangeably accommodate, in the pair of work rolls (17), different roll diameter ranges by means of mutually complementary work rolls (18, 19; 20, 21).