Abstract: A continuous tobacco rod generated by a machine for making tobacco products is separated into reclaimable lengths by a device that comprises a pair of tension rollers designed to exert a pulling force on the rod, also a pair of brake rollers operating upstream of the tension rollers and serving to offer a measure of resistance to the action of the tension rollers; as a result of the interaction between the tension rollers and the brake rollers, the portion of the continuous rod extending between them is forced to break by tearing apart.

Abstract: In a cigarette maker comprising a descent channel filled with shredded tobacco by a carding unit and with reclaimed tobacco by a conveyor, the shredded tobacco and the reclaimed tobacco are taken up and transferred by a toothed unit toward an ascent channel, from where both are attracted onto a belt by suction and formed into a continuous stream; the descent channel is split into two distinct portions serving respectively to admit the shredded tobacco and the reclaimed tobacco, whilst the toothed unit comprises a first and a second roller positioned to take up the shredded tobacco and reclaimed tobacco and operating in conjunction with respective impeller rollers.

Abstract: A continuous cigarette rod is prepared by a unit comprising a looped conveyor on which a continuous stream of tobacco particles advances toward the entry point of a forming station where the rod is assembled. Also forming part of the unit, ordered in sequence along a predetermined feed path, are a first trimming device designed to produce a cyclical skimming action, a compactor device operating synchronously with the first trimming device, serving to increase the density of the stream selectively at points coinciding with the portions skimmed by the first trimming device, and a second trimming device by which the thickness of the stream is reduced uniformly to a prescribed value.

Abstract: In a cigarette maker, shredded tobacco is directed by a conveyor into a riser and ascends as a flow of distinct particles toward an aspirating belt, placed at the top outlet end of the riser, by which the particles are attracted and gathered progressively to form a stream of tobacco filler. The riser is made up of a lower first portion in receipt of the tobacco from the conveyor, and an upper second portion enclosed by the aspirating belt; the first portion is embodied separately from the second portion, and the two portions are inter-connected by the revolving surface of a toothed suction roller designed to transfer a uniform layer of tobacco from the first portion to the second.

Abstract: A method and unit for simultaneously forming multiple tobacco mats on a multiple-rod cigarette manufacturing machine, whereby an input stream of shredded tobacco is fed to a switch conduit selectively alignable with the inputs of at least two downflow conduits, each of which communicates via a respective carding assembly with a respective upflow conduit closed by a respective conveyor belt for a respective tobacco mat; the switch conduit being switched between positions selectively aligned with the downflow conduits in response to a command signal generated in function of the tobacco level in the downflow conduits.

Abstract: In a cigarette maker comprising a descent channel filled with shredded tobacco by a carding unit and with reclaimed tobacco by a conveyor, the shredded tobacco and the reclaimed tobacco are taken up and transferred by a toothed unit toward an ascent channel, from where both are attracted onto a belt by suction and formed into a continuous stream; the descent channel is split into two distinct portions serving respectively to admit the shredded tobacco and the reclaimed tobacco, whilst the toothed unit comprises a first and a second roller positioned to take up the shredded tobacco and reclaimed tobacco and operating in conjunction with respective impeller rollers.

Abstract: A continuous tobacco rod generated by a machine for making tobacco products is separated into reclaimable lengths by a device that comprises a pair of tension rollers designed to exert a pulling force on the rod, also a pair of brake rollers operating upstream of the tension rollers and serving to offer a measure of resistance to the action of the tension rollers; as a result of the interaction between the tension rollers and the brake rollers, the portion of the continuous rod extending between them is forced to break by tearing apart.

Abstract: The outfeed unit of a cigarette maker establishes a feed path along which at least one cigarette rod is caused to advance in a predetermined direction from the outfeed end of a beam, on which the rod is formed, toward a cutter device by which the rod is divided into sticks constituting single cigarettes; the unit is equipped with a cut-off device located in close proximity to the outfeed of the forming beam, by which the rod is severed and diverted from the feed path, and, at a given point downstream of the cut-off device, with pinch rollers by which a portion of the rod separated through the action of the cut-off device is removed from a final stretch of the feed path between the cut-off device and the cutter device.

Abstract: The outfeed unit of a cigarette maker establishes a feed path along which at least one cigarette rod is caused to advance in a predetermined direction from the outfeed end of a beam, on which the rod is formed, toward a cutter device by which the rod is divided into sticks constituting single cigarettes; the unit is equipped with a cut-off device located in close proximity to the outfeed of the forming beam, by which the rod is severed and diverted from the feed path, and, at a given point downstream of the cut-off device, with pinch rollers by which a portion of the rod separated through the action of the cut-off device is removed from a final stretch of the feed path between the cut-off device and the cutter device.

Abstract: The invention relates to a method for forming a cigarette rod containing an additive material in a cigarette making machine, in which a continuous tobacco rod is fed along a vacuum conveyor and particles of the additive material are fed to and incorporated along the axis of the cigarette rod by a distributor which comprises a conveyor having a hollow drum with a cylindrical side wall on which there is a plurality of seats designed to house the particles; the drum rotating within a ring-shaped structure and the seats, during rotation of the drum, passing through an ejector unit designed to eject the particles from the seats and incorporate them in the tobacco rod through a feed pipe, so as to control the distribution of the particles of the additive material along the tobacco rod, obtaining a preset positioning of the particles in each cigarette length.

Abstract: In a method of feeding wrapper material, typically as utilized by machines for the manufacture of tobacco products, a first and a second strip presenting two longitudinal side edges and of dissimilar transverse dimensions are advanced along respective predetermined first feed lines, positioned one relative to another in a direction transverse to the respective first feed lines in such a way as to bring about their alignment along one longitudinal edge and finally joined face to face before advancing together along a predetermined common feed line toward a machine unit.

Abstract: A method and machine whereby at least two strips of paper, after being supplied with respective continuous layers of shredded tobacco, are fed along a forming beam by respective conveyor belts which are deformed transversely to gradually wind the respective strips about the respective layers and so form respective tubular wrappings, each presenting a respective longitudinal lateral appendix, an inner lateral portion of which is gummed by a respective gumming disk and then brought into contact with an outer surface of the respective tubular wrapping to form a respective continuous cigarette rod; the inner lateral portions being gummed at an intermediate point of the forming beam. The gumming apparatus is located to one side of the forming beam, thereby leaving the other side accessible.

Abstract: A unit for transferring cigarette portions from a dual rod cigarette manufacturing machine to a filter assembly machine; the transfer unit presenting a launching device for successively receiving pairs of cigarette portions arranged side by side and traveling in an axial direction, and for simultaneously feeding the portions in each pair--still substantially axially, but imparting to them a transverse component--into respective adjacent seats of a conveyor device wherein the seats for receiving the cigarette portions are parallel to the cigarette portions, and travel crosswise to the traveling direction of the cigarette portions.

Abstract: A method and machine whereby a stream of shredded tobacco is fed through a dividing device for dividing the stream into two substreams and feeding the two separate substreams to a forming device downstream from the dividing device; the dividing device presenting two suction belts in turn presenting respective dividing branches crosswise to the stream, and each of which belts provides for retaining a respective portion of the stream by suction to form a respective substream.

Abstract: The invention has for its object a cut-tobacco distributing device for cigarette making machines.The distributing device includes a rotating drum (2) provided with points (3) which takes or receives the cut tobacco.This drum (2) provided with points (3) cooperates with a rotating detaching cylinder (18) which takes the cut tobacco from the said drum (2).According to the invention, in order to reduce the mechanical stresses which exert a degrading action on the cut tobacco, the points (3) of the drum (2) are retractable inside the drum (2) itself and are controlled by cams (8, 9) which retract them, temporarily, in a complete or almost complete way in the region of the detaching cylinder (18).The latter is constructed as a pneumatic suction cylinder without points.