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 rolling—except for a roll change—and 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.

The object of this invention is a rolling mill stand with one pair of work rolls for a rolling metal strip, with intermediate rolls and back-up rolls. Here, the work rolls are supported at the sides by supporting systems, where a supporting force directed towards the work roll can be applied to each supporting system by means of a force generating device and the supporting system can be moved from an idle position into an operating position. According to the invention, the two work rolls can be replaced by work rolls with a different diameter, where only the supporting systems have to be replaced by supporting systems with supporting rolls of a different diameter, but the intermediate rolls and back-up rolls need not be changed.

A roll mounting system is provided that includes a roll assembly coupled to one or more rolls. The roll assembly is configured to position the one or more rolls using a tapered assembly for mounting or dismounting of the one or more rolls. Also, the roll mounting system includes a torque assembly coupled to the roll assembly. The torque assembly is configured to provide torque to the roll assembly for mounting or dismounting of the one more rolls.

A roll mounting system is provided that includes a roll assembly coupled to one or more rolls. The roll assembly is configured to position the one or more rolls using a tapered assembly for mounting or dismounting of the one or more rolls. Also, the roll mounting system includes a torque assembly coupled to the roll assembly. The torque assembly is configured to provide torque to the roll assembly for mounting or dismounting of the one more rolls.

A method for changing work roll in a rolling mill which limits the risk of scratching the work roll, or even the risk of scratching the metal strip, upon extracting or inserting the work roll, by virtue of a mechanical separation element, in particular of the branches of a fork system, inserted by a robotic element.

A method for changing work roll in a rolling mill which limits the risk of scratching the work roll, or even the risk of scratching the metal strip, upon extracting or inserting the work roll, by virtue of a mechanical separation element, in particular of the branches of a fork system, inserted by a robotic element.

The invention relates to a device for moving a roll stand into or out of a roll stand receptacle of a rolling line, comprising a carrier element for entraining an entrainment element of a roll stand and a conveying element, wherein the carrier element is moved along a predetermined curved path.

Within a housing, divided backing bearing assembled shafts are each moved on any one of a housing bore upper surface 8a constituting the housing, spray frame upper surfaces 9, and rails 13, 19, and 20 of a changing carriage 12 by a sliding apparatuses, and outside the housing, the divided backing bearing assembled shafts are extracted from within the housing or inserted into the housing by being moved on the rails 13, 19, and 20 of the changing carriage 12 by sliding apparatuses. There are thus provided a rolling mill that makes changing of divided backing bearing assembled shafts in the rolling mill easier than conventional, and a method of changing the divided backing bearing assembled shafts in the rolling mill.

Within a housing, divided backing bearing assembled shafts are each moved on any one of a housing bore upper surface 8a constituting the housing, spray frame upper surfaces 9, and rails 13, 19, and 20 of a changing carriage 12 by a sliding apparatuses, and outside the housing, the divided backing bearing assembled shafts are extracted from within the housing or inserted into the housing by being moved on the rails 13, 19, and 20 of the changing carriage 12 by sliding apparatuses. There are thus provided a rolling mill that makes changing of divided backing bearing assembled shafts in the rolling mill easier than conventional, and a method of changing the divided backing bearing assembled shafts in the rolling mill.

A roll changing device is applicable to a multi-roll mill. Under a roll changing state, assembly parts of the work rolls and the bearing chocks have a lateral movement space with the internal width not less than the assembly width of the work rolls and the bearing chocks in a lateral direction of the assembly parts moving along a rolling strip in a mill house, and the movement space allows another work rolls to coexist with used work rolls in the mill house before the used work rolls are pulled out. The roll changing device is provided with at least two rows of clamping heads, one row of clamping heads corresponding to an inlet side are inlet clamping heads, another row of clamping heads close to an outlet side are outlet clamping heads, each row of clamping heads comprises a pair of upper and lower clamping heads arranged in parallel.