Method and apparatus for adjusting and changing the height of the plane of passage of the material to be rolled through rolls of rolling stands of a shape rolling mill

An arrangement for adjusting and changing the height of a plane of passage of a material being rolled through rolls of consecutive rolling stands in a rolling train of a shape rolling mill, which train includes a flange upsetting stand between two universal stands, the arrangement comprising:

• means for raising and lowering at least one of, the rolling stands and parts of the rolling stands containing the rolls, as the material rolls through the rolls of the rolling stands;
• means for controlling, changing and fixing the height of the plane of passage of the material as it rolls through the rolls of the flange upsetting stand during a rolling operation, so that a web central position relative to an adjusted plane of passage through the remaining rolling stands can be corrected, said raising and lowering means including positionally adjustable elevating devices, said flange upsetting stand being arranged upon said elevating devices, said raising and lowering means including a common support baseplate located upon elevating devices which are driven in a mechanical-hydraulic manner and which are positionally adjustable, the universal stands being arranged on said common supports;
• and
• measuring means for determining measured values of dimensional deviations of the rolled bar passing through the rolling train, the thus determined measured values being used to change the height adjustment.