Abstract: The accumulator includes at least one pair of chains substantially parallel to each other to which cradles are connected for receiving products to be stored, the cradles being mutually spaced along the pair of chains. Each cradle is connected to the pair of chains through constraining members. On each chain at least one intermediate constraining member is arranged between two adjacent cradles connected to the chains.

Abstract: The rewinding machine includes a first winding roller, around which the web material is guided, and defining at least in part a winding cradle; a support surface of the winding cores arranged to receive a winding core and to convey the core toward the winding cradle, the support surface defining with the first winding roller a feed channel of winding cores, a severing member of the web material, which can be inserted in the channel to sever the web material, the severing member interacting with the web material to cause severing thereof; a motor for controlling the severing member, the motor controlling the severing member modifying the speed of the severing member when it is positioned inside the channel.

Abstract: The machine includes a first glue-applying device for closing the tail end; and a second mechanical-closing device for mechanically anchoring the tail end of the roll to a portion of an outer turn of the web material wound on the roll.

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 first 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 accumulator includes at least one pair of chains substantially parallel to each other to which cradles are connected for receiving products to be stored, the cradles being mutually spaced along the pair of chains. Each cradle is connected to the pair of chains through constraining members. On each chain at least one intermediate constraining member is arranged between two adjacent cradles connected to the chains.

Abstract: The device for joining at least two plies of paper, in particular tissue paper, including a ply-bonding unit and moistening means to moisten at least one of the two plies before joining.

Abstract: A method is described for obtaining a coreless roll of web material with a first portion of web material forming an inner nucleus of the roll and a second portion of web material wound around the outside of the inner nucleus. The two portions can be separated from one another and, for that purpose, an interface or discontinuity is created in at least one turn of the web material forming the roll between the inner nucleus and the second portion of web material. This facilitates the extraction of the inner nucleus from the outer portion of the roll.

Abstract: The machine includes a first winding roller and a concave plate extending around the first winding roller. The first winding roller and the concave plate define a feed channel of the web material. Upstream of the concave plate there is arranged a moving member including a pinching surface cooperating with the first winding roller to pinch the web material against the first winding roller. The moving member is arranged and controlled to pinch the web material against the surface of the first winding roller and decelerate the web material between the moving member and the surface of the first winding roller, causing a leading edge to wind around itself to form a winding nucleus of a log.

Abstract: To close the tail end (L) of the web material forming the log (R) there is provided mechanical ply-bonding between the tail end and a portion of the last turn of web material, preferably a portion forming a fold (F) projecting from the log.

Abstract: The device for joining at least two plies of paper, in particular tissue paper, including a ply-bonding unit and moistening means to moisten at least one of the two plies before joining.

Abstract: The device includes at least a first gripping member and a second gripping member, arranged and controlled so that they extract two winding spindle portions from opposite ends of a log in a longitudinal extraction direction parallel to the axis of the log. The first gripping member and a second gripping member are movable along a log advancing path and extract the two winding spindle portions as they advance along the log advancing path together with the log and the two winding spindle portions.

Abstract: The machine includes a forming unit with a spindle around which one or more strips of web material are wound; an adhesive applicator to apply an adhesive on at least one surface of at least one strip of web material; a feed path of the at least one strip of web material from the adhesive applicator to the forming unit. The length of the feed path can be modified according to at least one opening parameter.

Abstract: To close the tail end (L) of the web material forming the log (R) there is provided mechanical ply-bonding between the tail end and a portion of the last turn of web material, preferably a portion forming a fold (F) projecting from the log.

Abstract: The rewinding machine includes a path for feeding a web material; a first winding roller and a second winding roller defining a nip, across which the web material passes; downstream of the nip a third winding roller with movable axis, cooperating with the first winding roller and the second winding roller to form a winding cradle for the rolls. An auxiliary winding roller with movable axis is also provided, which can be inserted between the first winding roller and the second winding roller downstream of the nip.

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: A rewinding machine is described with a winding cradle defined by three rollers and including a fourth winding roller, defining with the first winding roller a cradle in which the web material is pushed by a winding core to the beginning of each winding cycle, to cause severing of the web material without the need for controlled mechanical parts.

Abstract: The rewinding machine includes a first winding roller, around which the web material is guided, and defining at least in part a winding cradle; a support surface of the winding cores arranged to receive a winding core and to convey the core toward the winding cradle, the support surface defining with the first winding roller a feed channel of winding cores; a severing member of the web material, which can be inserted in the channel to sever the web material, the severing member interacting with the web material to cause severing thereof; a motor for controlling the severing member, the motor controlling the severing member modifying the speed of the severing member when it is positioned inside the channel.

Abstract: The cutting machine includes at least one log feed channel; a cutting station along the feed channel, with at least one cutting blade for dividing each, log into individual rolls plus front and rear trims; a log feed device along the feed channel, including at least one rear member for pushing the logs to be cut, movable along the feed channel to push each log through the cutting station. The feed device also includes at least one front member for engaging with the log to be cut, arranged and controlled so as to engage frontally with each log, or series of rolls obtained after the log has been cut, for at least a part of its travel along the feed channel.

Abstract: The rewinding machine includes: a winding unit; a feed path of the web material; an insertion path of the winding cores; a separator device to sever the web material upon completion of winding each log. The separator device is disposed and produced to be activated by passage of a winding core.

Abstract: A method is described for obtaining a coreless roll of web material with a first portion of web material forming an inner nucleus of the roll and a second portion of web material wound around the outside of the inner nucleus. The two portions can be separated from one another and, for that purpose, an interface or discontinuity is created in at least one turn of the web material forming the roll between the inner nucleus and the second portion of web material. This facilitates the extraction of the inner nucleus from the outer portion of the roll.