Abstract: The unwinder device comprises: unwinding members for simultaneously unwinding a first reel (B1) and a second reel (B2), a splicing device (151) for splicing together a first web-like material (N1) coming from said first reel (B1) and a second web-like material (N2) coming from said second reel (B2), an accumulator member (24, 200) for accumulating web-like material (N2) supplied from said second reel (B2) before splicing to the web-like material (N1) supplied from said first reel (B1).

Abstract: The rewinding machine comprises: a winding system (1, 2, 3) and a feed path for a web material (N) towards said winding system. Along the feed path is a channel for insertion of the cores and an interruption member (23; 101) which acts on the web material.

Abstract: The unwinding device to unwind reels of web material comprises: unwinding members (505; 525) to simultaneously unwind a first reel (B1) and a second reel (B2); a splicing device (563) to join together a first web material (N1) coming from the first reel (B1) and a second web material (N2) coming from the second reel (B2); at least one accumulation member (540, 541) to accumulate the web material delivered from the second reel before splicing with the web material delivered from the first reel; a first path (585) and a second path (589) for the web material delivered simultaneously from the first and from the second reel towards a machine downstream.

Abstract: Described herein is a rewinding machine for the production of rolls (L) of weblike material around winding cores, including a path for the weblike material (N) and a winding area, in which said weblike material is wound in rolls. The machine moreover comprises a feeder for feeding a sheetlike material (F) towards the path of the weblike material, and forming members (13, 15) for rolling a length of said sheetlike material and forming therewith a winding core around which a roll of weblike material is formed.

Abstract: The device for joining at least two plies of paper (V1, V2), in particular tissue paper, comprises a ply-bonding unit (9) and moistening means (11) to moisten at least one of said two plies before joining.

Abstract: The machine comprises in combination: a winding cradle (7); an insertion member (29) to insert winding cores (A, A1) into said cradle; an ejector (39) to eject the logs formed from said cradle (7) causing them to roll on an unloading chute (41); a severing device (55, 53) to sever the web material after ejection of the log from said cradle. Disposed along the unloading chute is an aperture (43) elongated in a direction transverse to the direction in which the log is unloaded along said unloading chute. Moreover, the severing device (53, 55) includes a movable element (55) that is inserted into said aperture (43) to cause severing of the web material between the cradle and the finished log.

Abstract: The embossing device comprises at least one embossing roller (3) and at least one counter-roller (5) cooperating with said embossing roller. The embossing roller comprises an interchangeable sleeve (19) which can be constrained to two heads (13, 15) which engage the sleeve at the ends thereof.

Abstract: A method for producing logs (L1, L2) of web material (N) wound around tubular cores wherein the tubular core (A1-A4) is equipped with glue to secure the initial end of the web material and allow winding. Part of the glue applied to the tubular core is transferred to the web material (N) before it is severed upon termination of winding the log, to seal the final free end of the formed log.

Abstract: The unwinder device includes an unwinding station (7), with unwinding members for unwinding reels and a splicing device (151) for splicing together web-like materials (N1 and N2) coming from a first reel (B1) and from a second reel (B2). At least two supports (49, 51) are arranged in the unwinding station for the respective reels of web-like material, associated with respective unwinding members (83, 99). The supports are constructed and arranged to simultaneously support two reels being unwound, during at least a phase of the unwinding, and each of said supports is able and constructed to load a new reel in an engagement position, support it during the unwinding and unload it in a release position.

Abstract: A device is provided to produce an embossed multi-ply material, comprising: a first embossing-laminating unit (3) comprising a first embossing cylinder (5) equipped with first projections (5P) defining a first pattern, a first pressure roller (7) cooperating with said first embossing cylinder (5), a first laminating roller (9) and a first glue dispenser (11), disposed between said first pressure roller (7) and said frst laminating roller (9); an embossing unit comprising at least a second embossing cylinder (25) provided with second projections (25P) defining a second pattern and a second pressure roller (27) cooperating with said second embossing cylinder (25); a first path (P1) through said first embossing-laminating unit (3); a second path (P2) for at least a second ply (V2) towards and through said second embossing unit (23); a third path (P3) for said third ply (V3).

Abstract: The rewinding machine comprises: a first winding roller (11) and a second winding roller (13) defining a nip (15) through which said cores are inserted and through which said web material (N) is fed; and at least one pair of motorized engaging members (57), to engage the ends of a winding core and transmit a rotational movement to the core during at least part of the winding cycle of each log. The engaging members and the first and second winding roller are produced and disposed so that the log being formed is in contact with said first and said second winding roller. Moreover, a third winding roller (17) is provided, defining a winding space with said first and said second winding roller, said third winding roller being movable to allow increase and completion of winding of each log in said winding space.

Abstract: The embossing and laminating device comprises: a central embossing cylinder (1), provided with a plurality of protuberances (1P); at least three pressure rollers (3, 4, 5) disposed along the periphery of the embossing cylinder (1) and provided with a yielding surface, cooperating with the embossing cylinder; at least three paths to feed one or more plies (V1, V2, V4) between the central embossing cylinder and each pressure roller; at least a first gluing unit (7) disposed between two consecutive pressure rollers and cooperating with said central embossing cylinder.

Abstract: The unwinder device includes an unwinding station (7), with unwinding members for unwinding reels and a splicing device (151) for splicing together web-like materials (N1 and N2) coming from a first reel (B1) and from a second reel (B2). At least two supports (49, 51) are arranged in the unwinding station for the respective reels of web-like material, associated with respective unwinding members (83, 99). The supports are constructed and arranged to simultaneously support two reels being unwound, during at least a phase of the unwinding, and each of said supports is able and constructed to load a new reel in an engagement position, support it during the unwinding and unload it in a release position.

Abstract: The unwinder device comprises: unwinding members for simultaneously unwinding a first reel (B1) and a second reel (B2), a splicing device (151) for splicing together a first web-like material (N1) coming from said first reel (B1) and a second web-like material (N2) coming from said second reel (B2), an accumulator member (24, 200) for accumulating web-like material (N2) supplied from said second reel (B2) before splicing to the web-like material (N1) supplied from said first reel (B1).

Abstract: The rewinding machine comprises: winding elements (1, 3, 5) to wind the web material (N) and form the logs (L1, L2); at least a first glue dispenser (31B) to apply a first glue (C2) to a portion of said web material, in proximity to a severing line, along which the web material is severed upon termination of winding a log. The first glue dispenser comprises a mechanical element (31B) that touches the web material (N) upon termination of winding each log (L1, L2), to transfer the first glue to the web material (N).

Abstract: A method for producing logs (L1, L2) of web material (N) wound around tubular cores wherein the tubular core (A1-A4) is equipped with glue to secure the initial end of the web material and allow winding. Part of the glue applied to the tubular core is transferred to the web material (N) before it is severed upon termination of winding the log, to seal the final free end of the formed log.

Abstract: The machine comprises in combination: a winding cradle (7); an insertion member (29) to insert winding cores (A, A1) into said cradle; an ejector (39) to eject the logs formed from said cradle (7) causing them to roll on an unloading chute (41); a severing device (55, 53) to sever the web material after ejection of the log from said cradle. Disposed along the unloading chute is an aperture (43) elongated in a direction transverse to the direction in which the log is unloaded along said unloading chute. Moreover, the severing device (53, 55) includes a movable element (55) that is inserted into said aperture (43) to cause severing of the web material between the cradle and the finished log.