Calender and method of operating same

A calender, comprising:

• a frame having a roll stack vertically arranged along a center plane therein;
• a lower deflection control roll as the lowermost roll of said roll stack, said lower deflection roll comprising:
• a) a sleeve supported on a bracket, said bracket having opposed ends;
• and
• b) a deflection control device configured to operate in the direction of the center plane of said roll stack;
• a pair of bearing blocks, each said bearing block configured to hold a respective end of said bracket, each said bearing block being adjustable by a respective loading device;
• a pair of pivoted arms each having a proximal end and a distal end, said proximal end swivelly connected to said frame, and said distal end connected to a respective bearing block;
• and
• a correction device having a guide element configured for translational movement along a guideway formed on said frame;
• a correction lever fixedly connected to said bracket, said bracket adapted for rotation in said bearing block within a predetermined angle;
• wherein said guide element of said correction device is mounted to said correction lever;
• wherein said bearing block is fixedly connected to said pivoted arm;
• and
• wherein the direction of operation of said deflection control device remains substantially constant during adjustment of said at least one of said bearing blocks by said correction device.

A method of operating a calender, the calender having a frame having a roll stack therein, the roll stack being vertically arranged along a center plane, a lower deflection control roll as the lowermost roll of the roll stack, the lower deflection roll having a sleeve supported on a bracket, the bracket having opposed ends, the lower deflection control roll further having a deflection control device configured to operate in the direction of the center plane of the roll stack, the calender further having a pair of bearing blocks, each bearing block configured to hold a respective end of the bracket, each bearing block being adjustable by a respective loading device, a pair of pivoted arms each having a proximal end and a distal end, the proximal end swivelly connected to the frame, and the distal end connected to a respective bearing block, a correction device having a guide element configured for translational movement along a guideway formed on the frame, and a correction lever fixedly connected to the bracket, wherein the guide element of the correction device is mounted to the correction lever;

• and wherein the bearing block is fixedly connected to the pivoted arm, the method comprising:
• adjusting the bearing block via said respective loading device;
• rotating the bracket in the bearing block by an angle via said correction device, and
• maintaining the direction of operation of the deflection control device substantially constant.