Patent ID: 6250582
Filing Date: 2001-06-26
Classification: B65H

Abstract:
A roll winding method for use with a roll winding device, the roll winding device having two carrying rollers defining a winding bed adapted to receive a wound roll, each roller having a respective longitudinal axis, the longitudinal axes being substantially parallel to one another, the roll winding device further having a pressure chamber arrangement having opposed sides, opposed ends and a bottom, each side being defined by a respective carrying roller, the bottom being defined by a sealing body, an end wall present at each opposed end, and at least two mobile end walls located intermediate the end walls, the roll winding device still further having a sensor adapted to sense the ends of the wound roll, the method comprising:placing an empty winding core in the winding bed;driving the winding core by the rotation of the two carrying rollers;pressing the winding core against the two carrying rollers;winding a material web about the rotating winding core;axially moving each mobile end wall toward the axial center of the pressure chamber arrangement, when the web roll has reached a predetermined size, until the sensor senses the ends of the roll; andproviding the area defined by the carrying rollers, the sealing body, an the mobile end walls with pressurized air.