Patent ID: 8181898
Filing Date: 2012-05-22
Classification: B65H

Abstract:
1. A winding plant for use in plastic film production lines comprising a plurality of reels ( 11 - 14 ) connected to a star-like reel carrier ( 15 ) rotatable around its own axis in a clockwise and a counterclockwise direction, said reels ( 11 - 14 ) being arranged around said star-like reel ( 15 ) in a manner such that a first reel ( 12 ) of said plurality of reels is situated in an operative winding position of a film ( 20 ) to form a complete roll ( 21 ), said reels ( 11 - 14 ) each comprising a mandrel ( 26 ) supported by a tailstock associated with a star-like flange element ( 16 ) comprising a first and a second notch ( 23 , 24 ), wherein said flange element ( 16 ) is rotatable around its own axis in a clockwise and a counterclockwise direction in a manner independent from said star-like reel carrier ( 15 ) when said tailstocks are released from said mandrels ( 26 ), so as to bring said first notch ( 23 ) to a second unloaded reel ( 13 ) and said second notch ( 24 ) to a third reel ( 14 ) loaded with a roll ( 21 ) of film ( 20 ) wherein said first notch ( 23 ) is circular-sector shaped and has a size substantially similar to the section size of a mandrel ( 26 ) or has a size substantially similar to a complete roll; said winding plant also including a drawing and pressure device comprising at least one cylinder ( 18 ) arranged in contact with said first reel ( 12 ) in operative winding position, said drawing and pressure device being rotatable around a torsion axis ( 28 ) and being controlled under pressure through cylinders ( 27 ).