Dual-rod cigarette manufacturing machine
AssigneeG.D Societa' Per Azioni
InventorsRiccardo Mattei, Bruno Belvederi
Life of this patent
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Abstract
Dual-rod cigarette manufacturing machine on which two streams of tobacco, held by suction on to parallel conveyor belts, are subjected, prior to being wrapped in strip cigarette paper, to the action of respective shaving devices each consisting of two tangent counter-rotating discs with cutting edges. On each shaving device, the disc outside the clearance between the two streams is flat, whereas the disc inside the clearance is truncated-cone-shaped and arranged in such a manner that its generating line through the point of tangency with the flat disc is coplanar with the latter. There can be vertical and horizontal adjustment of each shaving device.
Claims3
A dual-rod cigarette manufacturing machine (2) comprising means (3, 4) for forming two continuous streams of tobacco (24, 25), essentially-parallel, coplanar conveyor belts (5, 6) for transferring the tobacco streams (24, 25) to an unloading point (13) and, along the route of each of the two belts (5, 6), a tobacco stream (24, 25) shaving device (29, 30) consisting of a pair of counter-rotating discs (43', 44';
- 43, 44) located respectively inside and outside the clearance between the tobacco streams (24, 25), having respective cutting edges and arranged with the edges essentially tangent along the course of the respective tobacco stream (24, 25), characterized in that, on each shaving device (29, 30), the discs (45', 45) outside the clearance between the tobacco streams (24, 25) is essentially flat with its axis essentially perpendicular to the plane of the belts (5, 6), whereas the discs (44', 44) inside the clearance between the tobacco streams (24, 25) is mounted on a slant in relation to the plane and converging, on the side opposite to the tobacco streams (24, 25), with the axis of the flat discs (45', 45).
Dependencies are inferred from the claim text.