A gluing device of an end edge of a log including an introduction assembly into the gluing device of a log, a handling assembly for a log associated to detection device of the end edge and including a pair of rolls for advancement and holding in rotation of the log, a glue dispensing assembly and a transfer assembly of the log including a transfer plane positioned downstream of the lower handling roller. The glue dispensing assembly is placed in series between the lower handling roll and the transfer plane and includes a transverse tank for the glue, housing cyclically movable glue transfer members. The transverse tank is provided with an upper cover provided with a plurality of openings provided in succession side by side at a set distance along a transverse row. The movable glue transfer members include a plurality of tips provided in succession along a transverse row, alternatively projecting through the relevant openings and retracted within the transverse tank because of the cyclical movement.

A method for bonding the tail of a convolutely wound log to the body is provided. The method comprises the use of a bonding material to bond the tail to the wound log. The bonding material is applied to application sites arranged in a non-uniform pattern.

A device (5) for loading rolls (R) in a machine (1) includes a rotating member (6) that rotates around an axis (A) of rotation and having a plurality of radial elements (17A, 17B, 17C, 17D; 17E) spaced angularly with respect to each other. The radial elements define receiving seats (16) for rolls. At least one of the receiving seats (16) is suitable for assuming at least two distinct configurations for receiving and handling rolls (R) of different radial dimensions.

Systems for processing material, taping stations to apply tape to one or more rolls of material, and methods of processing material are disclosed. A system for processing material includes a winding station and a taping station. The winding station includes a winder to wrap material around a mandrel to produce one or more rolls of material. The taping station is arranged downstream of the winding station to receive the one or more rolls of material therefrom and apply tape to the one or more rolls of material.

A consumer width sized roll comprising wound web material comprising a tail. The tail may comprise a bonding material. The bonding material may be arranged in a novel pattern.

The machine for closing the tail end of logs of web material, includes an advancing path of the logs and, along the log advancing path, a tail end unwinding, positioning and sealing station. The tail end unwinding, positioning and sealing station includes an aperture that extends downwards from an inlet under the log advancing path. At least a first Coanda effect nozzle is placed at the inlet of the aperture, to generate a flow of air adapted to draw into the aperture the tail end of a log that is in the tail end unwinding, positioning and sealing station.

A consumer width sized roll comprising wound web material comprising a tail. The tail may comprise a bonding material. The bonding material may be arranged in a novel pattern.

Systems for processing material, taping stations to apply tape to one or more rolls of material, and methods of processing material are disclosed. A system for processing material includes a winding station and a taping station. The winding station includes a winder to wrap material around a mandrel to produce one or more rolls of material. The taping station is arranged downstream of the winding station to receive the one or more rolls of material therefrom and apply tape to the one or more rolls of material.

A gluing device (10) for gluing an end edge (11) of a log (11) comprising, in succession, an introducing group (20) for introducing logs (11) into the gluing device (10), a handling group (30) for handling the log (11) associated with detection means for detecting the end edge (11) and comprising a pair of rollers (31, 32) selectively for advancing and for holding in rotation the log (11), a glue dispensing group (40) and a transferring group (50) for transferring the log (11) comprising a transferring plane (51) arranged downstream of the lower handling roller (32), between the lower handling roller (32) and the transferring plane (51) has a space (35) for the passage of the end edge (11), the glue dispensing group (40) being arranged below the transferring plane (51) and comprising a transversal row of glue dispensing nozzles (41) are selectively disinsertable and directed towards the lower handling roller (32), and it comprises a transversal alignment device (23) for aligning the log (11) arranged upstream of the glue dispensing group (40). A related method of gluing the end edge is also part of the invention.

A feeding path (P) is provided for rolls (R, R1) to be closed and a closing station placed along that path. Two rollers (15, 17) form a cradle (19) for receiving the rolls (R, R1). A closing member (21) is provided to close a tail end (L). A rotating assembly (23) rotates around an axis (A-A) transverse to the feeding path and has groups (27A, 27B, 27C) of arms (28A; 28B, 28C) arranged with respect to one another angularly displaced around the rotation axis of the rotating assembly (23). Each arm has a front part (29) to eject a roll (R, R1) from the cradle (19) and a back part (31) to prevent a subsequent roll entering the closing station until the ejection of a roll from the cradle (19). Rotation of assembly (23) causes closed roll ejection and allows a subsequent roll (R1) to enter and be closed.