Patent ID: 6758134
Filing Date: 2004-07-06
Classification: D21G,Y10T

Abstract:
A method of rebuilding a calender including a supporting frame and a set of rolls journaled on bearing housings attached to vertical portions of the supporting frame so as to form a stack of rolls in which adjacent rolls placed one above another form calendering nips therebetween, the stack including a top roll, a bottom roll, and a plurality of intermediate rolls between the top roll and the bottom roll, the supporting frame further carrying spindles to move the rolls; said method comprising the steps of:detaching at least some of said intermediate rolls by removing their bearing housings from said supporting frame; removing the spindles from said supporting frame; providing a plurality of pivotal arms configured to receive bearing housings; providing a pair of auxiliary frames configured to be attached to the supporting frame and to support the plurality of arms; attaching the auxiliary frames to vertical portions of said supporting frame to extend vertically in the direction of the vertical portions; mounting the pivotal arms to said auxiliary frames one above another to permit the pivotal movement thereof with respect to said auxiliary frames; providing a plurality of force relieving actuators; coupling the force relieving actuators to said pivotal arms; and mounting intermediate rolls by their bearing housings on said pivotal arms.