Patent ID: 7404529

Claim:
A rewinding machine to form logs of wound web material, comprising: a first winding roller; a second winding roller; a nip defined between said first winding roller and said second winding roller, through which said web material is fed; a rolling surface, extending upstream of said nip in relation to the direction of feed of the web material and defining, with the first winding roller, a channel into which winding cores are fed, said channel having an inlet and an outlet; a feeder to feed winding cores into said channel; a severing device to sever the web material upon termination of winding a log; wherein said severing device is disposed to operate on the web material in a position upstream of the inlet end of said channel, in relation to the direction of feed of the web material; said first winding roller having suction openings on a cylindrical surface thereof; and between a position in which said severing device operates and the inlet of said channel a suction box is provided inside said first winding roller, an initial edge and a final edge of the web material produced by severing performed by the severing device being held via the suction openings on said first winding roller to transfer the initial edge to a new core being fed into said channel.