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US 2013/0008995 A1Published application
Machine and method for winding reels of web material
OwnerDaniele Langellainventor
Life of this patent
Estimating the term…
Abstract
The rewinding machine comprises: a first winding member (3) and a second winding member (9) defining a winding cradle (19); a winding rod inserter (25) for introducing a winding rod (A1; A2) in the winding cradle (19) to wind a reel (B1) of web material (N) on said winding rod. The inserter (25) is arranged and designed for introducing the winding rod (A2) against the first winding member (3) towards the winding cradle (19) and the second winding member (5) is designed and arranged to allow a previously formed reel (B1) to be unloaded from the winding cradle (19).
Claims27
A rewinding machine comprising:
- at least a first winding member and a second winding member defining a winding cradle;
- a winding rod inserter for introducing a winding rod in said winding cradle to wind a reel of web material on said winding rod, said winding rod inserter being arranged and designed so as to introduce said winding rod against the first winding member towards said winding cradle, said second winding member having a variable configuration and being designed and arranged to allow a reel, formed around a first winding rod, to be unloaded from said winding cradle, through a change in the configuration of said second winding member, said winding rod inserter, said first winding member and said second winding member being controlled so that said first reel of web material wound around said first winding rod is unloaded from said winding cradle through a change in the configuration of the second winding member, while said winding rod inserter moves a second winding rod towards the first winding member and said first winding member brings said second winding rod into rotation, whereby winding a second reel is started, said first winding member comprising a first winding roller and said second winding member comprising a plurality of further winding rollers controlled to be in contact with the reel of web material, one or more of said further winding rollers being movable such that said first reel moves away from said first winding member towards an unloading area maintaining said first reel in rotation and continuing to wind said web material on said first reel while said first reel is transferred toward said unloading area and said winding rod inserter moves said second winding rod towards said first winding member.
3-11. (canceled)
A method for producing reels of web material around winding rods, the method comprising the steps of:
- winding a first reel of web material around a first winding rod in a winding cradle comprising a first winding member and a second winding member;
- at an end of winding of said first reel of web material, unloading said first reel of web material from said winding cradle, inserting a second winding rod in said winding cradle, and winding a second reel of web material around said second winding rod, said first reel of web material being unloaded from said winding cradle through a change in an arrangement of the second winding member, while said second winding rod is driven into rotation by moving said second winding rod towards the first winding member;
- arranging a first winding roller and a second winding roller to define a seat for supporting and rotating one of the first reel and the second reel during winding;
- arranging a third winding roller and a fourth winding roller with movable axes;
- winding said first reel in said support and rotation seat in contact with at least said first winding roller and said second winding roller;
- continuing winding said first reel of web material between said first winding roller, said second winding roller, said third winding roller, and said fourth winding roller;
- moving said first reel of web material away from said first winding roller and maintaining said first reel of web material in rotation by means of at least said second winding roller and said fourth winding roller and reducing the rotation speed of the reel from a winding speed to a replacement speed, said replacement speed being less than the winding speed;
- bringing said second winding rod against said first winding roller and engaging the web material between said first winding roller and said second winding rod;
- severing the web material between the second winding rod and the first reel;
- starting winding said second reel around said second winding rod;
- moving the first reel of web material away from the second winding roller;
- bringing the second reel in contact with said second winding roller.
9 more elements
26-28. (canceled)
(canceled)
Dependencies are inferred from the claim text.