Patent ID: 6402082
Filing Date: 2002-06-11
Classification: B65H

Abstract:
An apparatus for winding a material web into a wound roll on a winding core, the apparatus comprising:a press roll; movable press roll bearings coupled to said press roll; a pressing device being positioned to press said press roll against the wound roll, whereby said press roll and the wound roll form a winding nip, and wherein the material web is guided around said press roll and through said winding nip; said pressing device being adapted to set a line load in said winding nip; movable winding core bearings couplable to the winding core of the wound roll and being adapted to move the winding core to compensate for an increasing wound roll diameter, wherein said winding nip one of remains in an at least approximately same position or is displaced by a small amount during winding; a driving device being positioned to move each of said movable winding core bearings; a control device arranged to control said driving device as a function of movement of said press roll from a desired position; a position measurement device, coupled to at least one of said movable press roll bearings, which is adapted to produce an instantaneous position value of said press roll in accordance with a current position of said press roll; a regulator being adapted to compare the instantaneous position value with a desired position value of said press roll and to transmit an actuating variable that corresponds to a deviation of the instantaneous value from the desired value; and a wire being adapted to transmit the actuating variable from said regulator to said control device.