Unit and a method for forming a continuous cigarette rod in a cigarette maker

摘要

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.