摘要:
An orderly succession of first tobacco articles (4), each defined by a double cigarette portion, is fed, with a first pitch (P1), to a first portion (S1) of a path (B) along a filter assembly machine (5); as they travel along the first portion, the first articles (4) are cut into respective pairs of portions (13, 14), and the portions in each pair are spaced axially and then fed along a second portion (S2) of the path (B); as they travel along the second portion, the portions (13, 14) in each pair are separated by the interposition of a double filter (21) to form a succession of second articles (29), each defined by the relative pair of portions (13, 14) and by the relative interposed double filter (21); a respective strip (33) being applied, by rolling, to each second article (29) to connect the pair of portions (13, 14) and the double filter (21) and form a third article (40) defined by a double cigarette; and the first articles (4) being subjected to a pitch reduction to assume, along the first portion (S1) of the path, a second pitch (P2) shorter than the first pitch (P1) and of a length approximately equal to but no shorter than the length of the relative strip (33).
摘要:
On a filter assembly machine (1), two coaxial cigarette portions (5a, 5b), initially contacting each other end to end, are parted by a parting drum (2), wherein a rotary conveyor (8) for pairs (4) of cigarette portions (5) is mounted for rotation on a cam drum (17), and has at least one pair of cigarette portion holder slides (10) moved axially in opposite directions along the rotary conveyor (8) by the cam drum (17); the distances between the slides (10) at a pickup station (3) and a release station (7), where the cigarette portions (5) are picked up and released respectively, is adjusted by adjusting an angular position of the cam drum (17) with respect to the pickup station (3) and the release station (7).
摘要:
A unit (4) for perforating groups (5), each defined by two cigarette portions (6) and a double filter (7) interposed between the two cigarette portions (6); the unit (4) having a rotation device (10) for rotating each group (5) about a respective longitudinal axis (A, C), a conveyor drum (16) for feeding the rotation device (10) along a path (P) extending about a given axis (B) and crosswise to the respective longitudinal axes (A, C) of the groups, and a perforating device (12) arranged along the given axis (B) for forming a number of perforations (15) on each group (5); the rotation device (10) having two gondolas (41) for conveying each group (5); and each gondola (41) having a seat (44) for retaining a respective cigarette portion (6) of the group (5), and being connected to the corresponding gondola (41) by a countershaft (56) fitted in rotary manner to a periphery of the drum (16), parallel to the given axis (B), and arranged laterally of a plane passing through the given (B) axis and an axis (C) of rotation of the relevant gondolas (41).
摘要:
On a filter assembly machine (1), a succession of groups (8), each consisting of two cigarette portions, a double filter between the two cigarette portions, and a gummed strip (9) connected integral with and projecting from the group (8), is fed by an input conveyor (19) to a transfer station (7) where each group (8) is transferred into a respective seat (31, 32) on a rolling device (3) with multiple rolling channels (34); each gummed strip (9) being fed on to the respective group (8) so as to project forwards from the group (8) in the traveling direction of the input conveyor (19).
摘要:
A method and unit (1) for transversely cutting cigarette portions (2) or similar on a filter assembly machine, whereby a cigarette portion (2) is fed transversely through a cutting station to intercept a rotary circular blade (8), which is maintained in a work position by an arm (13) mounted to oscillate about an axis parallel to the axis of rotation of the circular blade (8), so as to move the circular blade (8) between the work position, a store (11) for worn circular blades (8), and a store (12) for new circular blades (8).
摘要:
A unit and method for transferring cigarette portions (5, 6) whereby the cigarette portions (5, 6) are transferred from a manufacturing machine (1) to a filter assembly machine (7) by means of a first conveyor (11) having first seats (23, 24) movable along a first annular path (P11, P12) to pick up respective cigarette portions (5, 6) at a pickup point (A1, A2), and by means of a second conveyor (13; 48) having second seats (31, 41; 60, 66) movable along a respective second annular path (P22, P21; P32, P31); the cigarette portions (5, 6) are transferred from a first seat (23, 24) to a second seat (31, 41; 60, 66) at a transfer point (B1, B2) along the first path (P11, P12), and the speed of the second seats (31, 41; 60, 66) is corrected at the transfer point (B1, B2) to substantially reach or approximate the speed of the first seats (23, 24) at the transfer point (B1, B2).