Trimmer device for the tobacco filler in a cigarette manufacturing machine

A trimmer device for the tobacco filler in a cigarette manufacturing machine, characterised by comprising, in combination, a pair of equal counter-rotating discs with an external cone-frustum surface having a cutting edge at the major base, the discs being mounted on downwardly converging inclined shafts supported by a common support and defining a plane substantially normal to the path of said filler, said discs being disposed so that said cutting edges are substantially tangential to each other and with one of their generating lines substantially aligned with the path of said tobacco filler, said cone-frustum surfaces comprising recesses or grooves directed substantially along their generating lines and spaced apart along said cutting edges by a pitch substantially equal to the length of the cigarettes produced by said manufacturing machine, such that the diameter of said discs, for a like number of said recesses, is a function of the length of said cigarettes, there being provided means for setting said discs on their respective shafts in a position which is a function of said diameter, and means for setting the level of said support relative to the base of said manufacturing machine.