G.d S.p.a.

G.d Societa' Per Azioni

Davide Dall'Osso

Massimo Sartoni

Fiorenzo Draghetti

Fulvio Boldrini

Bruno Belvederi

Franco Ghini

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.

Device and a method for separating at least one continuous rod of forming material for tobacco products

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.

Cigarette maker outfeed unit

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.

Method and device for forming a cigarette rod containing an additive material

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.

Method of feeding wrapper material in manufacturing machines

On a cigarette manufacturing machine, a continuous cigarette rod is fed to a cutting device by a conveyor belt engaging a number of guide pulleys and a drive pulley fitted to a drive shaft; the traveling speed of the continuous rod being controlled by continuously determining the diameter of the drive pulley, for obtaining a first control signal as a function of the surface speed of the drive pulley and, consequently, as a function of the speed of the conveyor belt, and by comparing the first control signal with a second control signal as a function of the desired surface speed of the drive pulley, for obtaining an error signal for controlling the angular speed of the drive shaft.

Method of controlling and regulating the traveling speed of a continuous

In a device ensuring safety and protection around the unit by which a cigarette rod is dried and sealed in cigarette manufacturing machinery, a hinged guard is positioned alongside the area of the machine where the heat plate of the drying and sealing unit moves and operates; the guard is capable of movement between a shut position denying access to the operating area and a position whereby access is afforded to the area. A microswitch senses when the guard is in the shut position, denying access to the operating area, and relays an enabling signal to the control valve piloting the cylinder by which the heat plate is lowered, only when the guard is in this same safe position.

Safety and protective device for association with a unit by which at

A machine for simultaneously manufacturing two continuous cigarette rods, whereby a continuous stream of shredded tobacco particles is fed to the bottom end of conveying means by which it is fed on to a pair of parallel suction conveyors traveling in a given direction, for forming on each conveyor a layer of tobacco of a given thickness; which conveying means comprise an upright defining internally a single upflow duct defined laterally by two walls extending in the traveling direction of the conveyors, and closed at the top by the two suction conveyors and by a separating member located between the same; provision also being made for pneumatic means for regulating the tobacco stream fed on to the conveyors.

Growing community of inventors

Bologna, Italy

Davide Dall'Osso