| 摘要 |
<p>A cigarette filter manufacturing machine (1); the machine (1) having: at least one feed line (4) for supplying a continuous strip (13) of filtering material; at least one forming beam (2) for forming a continuous filter rod (3); and a twisting unit (18) located between the feed line (4) and the forming beam (2), and which has at least one jet (25; 26), and a following insertion finger (27) that terminates inside the forming beam (2); the insertion finger (27) has a tapering tubular main body (40), and a tubular adjuster (41) which has an inlet opening (49) and an outlet opening (50), is inserted inside an inlet opening of the main body (40), and is slightly detached from the main body (40) to define, between an outer surface of the adjuster (41) and an inner surface of the main body (40), an annular compressed-air feed channel (42) that comes out inside the main body (40), at an annular gap (43).</p> |
