| 摘要 |
<p>A filter-manufacturing apparatus comprises a cutting drum (4), which has transporting grooves (24) and adapted to receive filter rods (F0) having a prescribed length. An annular slit (26) is formed in the circumference of the cutting drum (4). A circular cutting blade (32) extends into the annular slit (26) in a rotatable manner. A rod-shaped stopper (54) is movably arranged in each transporting groove (24), and the distance between each stopper (54) and the annular slit (26) is adjustable such that it corresponds to the length of a filter plug (Fp) to be cut from a filter rod (F0). The cutting drum (4) comprises a pushing mechanism (62) for moving the filter rod (F0) along the transporting groove (24) against the stopper (54) by jetting air, whereby the filter rod (F0) is cut by the cutting blade (32), with its one end abutting against the stopper (54). A receiving drum (86) with receiving grooves (88a, 88b) is in rolling contact with the cutting drum (4). The receiving drum rotates such that the receiving grooves (88a, 88b) come into alignment with the transporting grooves (24) of the cutting drum (4). The receiving drum is provided with a transfer mechanism (100). This transfer mechanism (100) sucks only the filter plug (Fp) cut from the filter rod (F0) held in the transporting groove (24) and transfers it into the receiving groove. The transfer mechanism causes the remaining part of the filter rod (F0) to be held in the transporting groove (24), in order for the remaining part to be carried again to the cutting blade (32) with the rotation of the cutting drum (4).</p> |
