The invention relates to a cylindrical rod (10) for aerosol-generating articles comprising a rod component (12) being circumscribed by a wrapper (14). The wrapper comprises laterally opposed edge portions which overlap so as to form an overlapping zone (16). Glue (24) is applied to the overlapping edge portions of the wrapper, by which the overlapping edge portions are adhered to each other. The glue is applied in such way, so as to form one or more glue zones (22) within the overlapping zone. The wrapper further comprises a plurality of cavities (26), wherein at least a part of the cavities is provided in the one or more glue zones. The invention further relates to a method for preparing a cylindrical rod for aerosol-generating articles.

A method for reducing stress of a garniture belt in a tobacco industry machine for manufacturing rods from a continuous rod comprising a garniture belt, guiding bars configured for guiding the garniture belt, a filling material receiving section, a rod diameter setting section, and a rod stabilizing section, the method comprising adjusting a resistance of motion of the garniture belt in at least one of the filling material receiving section or the rod stabilizing section by adjusting a width of the garniture channel by changing positions of the guiding bars in the horizontal direction perpendicular to a longitudinal axis of the garniture channel.

A method for reducing stress of a garniture belt in a tobacco industry machine for manufacturing rods from a continuous rod comprising a garniture belt, guiding bars configured for guiding the garniture belt, a filling material receiving section, a rod diameter setting section, and a rod stabilizing section, the method comprising adjusting a resistance of motion of the garniture belt in at least one of the filling material receiving section or the rod stabilizing section by adjusting a width of the garniture channel by changing positions of the guiding bars in the horizontal direction perpendicular to a longitudinal axis of the garniture channel.

A filling unit, configured to fill a succession of tubular wrappers of the tobacco industry. The tubular wrappers extend along a main axis of extension and internally define respective containment chambers adapted to contain a filling material of the tobacco industry and have an access opening on at least one of its ends for access to the containment chamber. The unit also includes a filling station configured to insert the filling material into respective containment chambers of the succession of tubular wrappers through a filling end of them and a closing station disposed downstream of the filling station and comprising a plurality of closing means configured to make respective walls which close the filling ends and which are transverse to the respective main axes of extension.

A filling unit, configured to fill a succession of tubular wrappers of the tobacco industry. The tubular wrappers extend along a main axis of extension and internally define respective containment chambers adapted to contain a filling material of the tobacco industry and have an access opening on at least one of its ends for access to the containment chamber. The unit also includes a filling station configured to insert the filling material into respective containment chambers of the succession of tubular wrappers through a filling end of them and a closing station disposed downstream of the filling station and comprising a plurality of closing means configured to make respective walls which close the filling ends and which are transverse to the respective main axes of extension.

A machine for making a continuous tubular element with filling from web material, including first and second means for feeding respective continuous webs, a forming station configured to perform a folding and/or deformation of a first continuous web in a shaped configuration, and a wrapping station wherein the second continuous web is wound in a tubular shape around the first continuous shaped web to obtain the continuous tubular element. Upstream of the wrapping station there is a first gluing device configured to apply at least one longitudinal line of glue on at least one of the continuous webs in such a way as to define at least one gluing zone, said longitudinal line of glue being positioned in such a way as to coincide with a zone of superposing and contact between the two continuous webs feeding out of the wrapping station.

A machine for making a continuous tubular element with filling from web material, including first and second means for feeding respective continuous webs, a forming station configured to perform a folding and/or deformation of a first continuous web in a shaped configuration, and a wrapping station wherein the second continuous web is wound in a tubular shape around the first continuous shaped web to obtain the continuous tubular element. Upstream of the wrapping station there is a first gluing device configured to apply at least one longitudinal line of glue on at least one of the continuous webs in such a way as to define at least one gluing zone, said longitudinal line of glue being positioned in such a way as to coincide with a zone of superposing and contact between the two continuous webs feeding out of the wrapping station.

A filling unit, configured to fill a succession of tubular wrappers of the tobacco industry. The tubular wrappers extend along a main axis of extension and internally define respective containment chambers adapted to contain a filling material of the tobacco industry and have an access opening on at least one of its ends for access to the containment chamber. The unit also includes a filling station configured to insert the filling material into respective containment chambers of the succession of tubular wrappers through a filling end of them and a closing station disposed downstream of the filling station and comprising a plurality of closing means configured to make respective walls which close the filling ends and which are transverse to the respective main axes of extension.

A filling unit, configured to fill a succession of tubular wrappers of the tobacco industry. The tubular wrappers extend along a main axis of extension and internally define respective containment chambers adapted to contain a filling material of the tobacco industry and have an access opening on at least one of its ends for access to the containment chamber. The unit also includes a filling station configured to insert the filling material into respective containment chambers of the succession of tubular wrappers through a filling end of them and a closing station disposed downstream of the filling station and comprising a plurality of closing means configured to make respective walls which close the filling ends and which are transverse to the respective main axes of extension.

A system for applying adhesive to wrapping material for smoking articles includes a housing configured to receive the adhesive from an adhesive holding component. The housing comprises an adhesive conduit in fluid communication with the adhesive holding component, the adhesive conduit configured to receive the adhesive from the adhesive holding component. A heater aperture extends at least partially through the housing, the heater aperture positioned adjacent to the adhesive conduit. The system further includes a pump coupled to the housing, the pump in fluid communication with the adhesive conduit and configured to apply the adhesive to the wrapping material. A heater is sized and configured to fit within the heater aperture. The heater is configured to heat the adhesive in the adhesive conduit to a target adhesive temperature that is greater than a normal operating temperature of the pump.