| 摘要 |
<p>Group for forming packets of rigid packaging, in particular of cigarette packets, in cigarette packing machines, comprising at least one conveyor housing (3), preferably a sequence of conveyor housings (3) each for an orderly group of cigarettes (G) together with a respective blank (F) to form an outer envelope of the packet by means of the folding means (5, 21, 222) distributed along a preset path of the conveyor housings (3) between an entry station (I) and one of discharge (IV) and the said folders (5, 21, 222) determining the progressive folding of the blank (F) around the corresponding orderly group of cigarettes (G). According to the invention, for each conveyor housing (3) folding means (5) are provided at least for the most significant and consistant foldings of parts of the blank (F1, F2, F5, F6) which constitute the visible faces of the finished packet, which move together with the conveyor housings (3) and farther on to the different stations according to the folds of the blank to be carried out and whose contact zones with the part of the blank (F1, F2, F5, F6) to be folded are at rest, this means do not move along the corresponding part of the blank for substantially the entire folding proceeding.. <IMAGE></p> |
