Patent ID: 9550644
Date: 2017-01-24
CPC Classifications: B65H

Claim:
1. An unwinder of reels of web material wound around winding spindles, comprising: an unwinding station with at least one unwinding member to rotate a reel that is located in said unwinding station and feed the web material toward a delivery path, said at least one unwinding member being arranged in said unwinding station; lifting members to lift a spindle of a first exhausted reel from said unwinding station in a removal position, wherein said removal position is free of an unwinding member; an insertion member to insert a second reel into said unwinding station; a pressing member to press the web material coming from the first reel in the removal position against the second reel in the unwinding station; a severing member arranged and controlled to sever the web material of said first reel in an area comprised between the removal position and said pressing member, wherein said pressing member is arranged and controlled to press the web material of the first reel against a lateral surface of the second reel so as: to generate friction between the lateral surface of the second reel and the web material, such that rotation of the second reel and a pressure exerted by the pressing member causes the first reel to be drawn into rotation and to deliver by pulling the web material remaining around the first reel, such that a residual web material is drawn from the first reel; and to provide pressure to cause adhesion of the web material of the first reel to the web material of the second reel.