Wrapping wheel of a cigarette packing machine
AssigneeG.D Societa' Per Azioni
InventorsFabrizio Tale', Alberto Polazzi, Mario Spatafora
Life of this patent
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Abstract
A wrapping wheel of a continuous cigarette packing machine has at least one seat for a respective group of cigarettes having two end surfaces and enclosed in a tubular wrapping having two projecting tubular end portions, each having two minor walls; the wheel moves each end surface along a relative path crosswise to the relative two minor walls, which are each folded onto the end surface by a relative folding device, which has an outer surface tangent to the end surface, and is mounted for rotation about a respective axis converging towards a plane defined by the path traveled by the end surface.
Claims11
A wrapping wheel of a cigarette packing machine, the wrapping wheel (1) having a first axis (5) of rotation and comprising at least one seat (10) for a respective group (12) of cigarettes (13) enclosed in a respective tubular wrapping (14) oriented with a respective longitudinal second axis (15) parallel to said first axis (5) and having at least one tubular end portion (16), which projects axially beyond a respective end surface (17) of said group (12) and comprises two parallel walls (18);
- and folding means (27) for folding said two walls (18) of said tubular end portion (16) onto the relative said end surface (17);
- said wrapping wheel (1) being mounted to rotate about said first axis (5) to move each said end surface (17) at a first speed and in a given first direction (4) along a relative annular first path (P1) crosswise to said two walls (18) and extending in a relative plane (25) about the first axis (5);
- and being characterized in that said folding means (27) comprise at least one folding device (27), which has an outer surface (29) tangent to a relative said first path (P1) and comprises at least one folding member (35), and actuating means (32) for moving the folding member (35) in a given second direction (33) along an annular second path (P2), a projection of which in the relative said plane (25) comprises a portion (T2) substantially coincident with a portion (T1) of the first path (P1), said second path is a circular path about a third axis converging towards said first axis.
Dependencies are inferred from the claim text.