Method for rolling plates, computer program, data carrier and control device

摘要

Trouble-free operation of an installation for rolling plates or sheets that have lost their rectangular form and have the form of a parallelogram is ensured by preventing the plate from meandering as it enters a rolling stand. A first rolling pass is carried out and, when the plate runs out from the rolling stand, it is determined whether the side faces of the plate are offset in relation to one another in the rolling direction. If the side faces of the plate are offset in relation to one another in the rolling direction, i.e. if the plate is parallelogram-shaped and has an oblique end, in a second rolling pass guiding elements of the rolling stand are set asymmetrically with respect to a center line. A first guiding element for the side face, which is the first to enter the rolling stand in the second rolling pass, is thereby adjusted further away from the center line than the second guiding element.

主权项

1. A method for rolling a plate, comprising:
providing at least one rolling stand, the at least one rolling stand having a pair of rollers through which the plate rolls, the at least one rolling stand also having first and second guiding elements upstream from the rollers, the first and second guiding elements opposing one another and being provided on either side of a center line of the at least one rolling stand, the first guiding element being adjacent to a first side face of the plate, the second guiding element being adjacent to a second side face of the plate; performing a first rolling pass through the rollers of the at least one rolling stand; detecting whether the first and second side faces of the plate are offset from one another in a rolling direction when the plate emerges from the first rolling pass; and centering the plate before a second rolling pass, wherein the guiding elements abut the plate in a centering position, and after centering the plate, adjusting positions of the guiding elements before the second rolling pass such that if the first and second side faces of the plate are offset from one another when the plate emerges from the first rolling pass, the guiding elements are shifted such that:
if the first side face of the plate emerges first, the first guiding element is positioned further from the center line than the second guiding element when the plate enters the rollers at a beginning of the second rolling pass, and if the second side face of the plate emerges first, the second guiding element is positioned further from the center line than the first guiding element when the plate enters the rollers of the second rolling pass.