US 7,523,884 B2
Rewinding machine with gluing device to glue the final edge of the log formed and relative winding method
Mauro Gelli, Lucca (Italy); and Romano Maddaleni, Pisa (Italy)
Assigned to Fabio Perini S.p.A., Lucca (Italy)
Appl. No. 10/535,424
PCT Filed Nov. 18, 2003, PCT No. PCT/IT03/00748
§ 371(c)(1), (2), (4) Date Jun. 02, 2005,
PCT Pub. No. WO2004/046006, PCT Pub. Date Jun. 03, 2004.
Claims priority of application No. FI2002A0227 (IT), filed on Nov. 20, 2002.
Prior Publication US 2006/0076450 A1, Apr. 13, 2006
Int. Cl. B65H 35/10 (2006.01); B65H 19/29 (2006.01)
U.S. Cl. 242—521  [242/532.3] 28 Claims
OG exemplary drawing
 
1. A rewinding machine for producing logs of wound web material comprising:
a web advancement path, along which a web material is fed;
a core advancement path, along which winding cores are fed, said web material being wound around said cores to form said logs;
a winding cradle to wind the web material and form said logs, including a first winding roller around which said web material is fed and a second winding roller, said first winding roller and said second winding roller forming a nip therebetween; said web advancement path and said core advancement path extending through said nip; said web advancement path, said core advancement path and said first winding roller being arranged such that each core advanced along said core advancement path is caused to pinch the web material against said first winding roller, said logs being wound in contact with said first winding roller and said second winding roller;
means to sever the web material upon termination of winding each log, including a rotating severing element, cooperating with said first winding roller;
at least one first glue dispenser including a mechanical member that touches the web material at end of winding of said each log to apply a first glue to a portion of said web material, in proximity to a severing line, along which the web material is severed upon termination of winding said each log to form a final free edge and an initial free edge, said first glue gluing the final free edge of the log;
wherein said mechanical member of said first glue dispenser is integral with said severing element or is part of said severing element, and wherein said mechanical member, said web advancement path and said first winding roller are constructed and arranged such that the web material is fed between said mechanical member and said first winding roller when said mechanical member applies said glue to a portion of said web material contacting said first winding roller.