US 9,809,417 B2
Surface winder
Gustav André Mellin, Amberley Village, OH (US)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Aug. 14, 2015, as Appl. No. 14/826,594.
Prior Publication US 2017/0043975 A1, Feb. 16, 2017
Int. Cl. B65H 18/28 (2006.01); B65H 75/24 (2006.01); B65H 18/02 (2006.01); B65H 19/22 (2006.01); B65H 18/14 (2006.01); B65H 18/20 (2006.01); B65H 18/26 (2006.01)
CPC B65H 75/243 (2013.01) [B65H 18/028 (2013.01); B65H 18/145 (2013.01); B65H 18/20 (2013.01); B65H 18/26 (2013.01); B65H 19/2269 (2013.01); B65H 2301/41346 (2013.01); B65H 2301/41468 (2013.01); B65H 2405/45 (2013.01); B65H 2406/15 (2013.01); B65H 2408/235 (2013.01); B65H 2515/342 (2013.01); B65H 2701/1924 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A rewinding machine for convolutley winding a web material onto a core to form rolls of convolutley wound web material, said rewinding machine comprising:
a first winding drum rotatable at a first peripheral velocity;
a second winding drum located in opposition to said first winding drum and rotatable at a second peripheral velocity, said core traversing a path extending through a space defined between said first and second winding drums;
said first and second winding drums causing said core to rotate in order to convolutley wind said web material thereabout to form said rolls of convolutley wound web material;
a core support for gripping opposing ends of said core in said space and during winding of said web material about said core, said core support moving said core along said path between said first and second winding drums in which said web material is wound about said core;
said core support further comprising a first rotatable pin having a corresponding first end and a corresponding second end capable of insertion into a first end of said core and a second rotatable pin having a corresponding first end and a corresponding second end capable of insertion into a second end of said core disposed distal to said first end of said core, said first and second rotatable pins both further comprising retaining means disposed upon said corresponding second end and being capable of providing fluidly sealing engagement with a respective interior portion of said core, said first rotatable pin further comprising a channel disposed therein, said channel providing fluid communication between a source of positive pressure disposed external to said first rotatable pin and said second end of said first rotatable pin, said source of positive pressure providing a positive pressure to said interior portion of said core through said channel from said first end of said first rotatable pin to said second end of said first rotatable pin when said second ends of both said first and second rotatable pins are in fluid sealing engagement with said interior portion of said core.