| 摘要 |
<p>A device for automatically changing reels for feeding webs of wrapping material, especially for cigarette packaging machines, which comprises: a magazine for a row of coaxial full replacement reels (1), with means (2, 3) for successively feeding said reels (1) to a collecting station; an unwinding mandrel (20) whose axis is parallel with the axis of the row of reels (1), on which mandrel it is possible removably to lock an unwinding reel (1''); a transfer mandrel (16) parallel with the unwinding mandrel (20), on which it is possible removably to lock a full replacement reel (1') and which is mounted on a transfer arm (7), by which the full replacement reel (1') is moved from the collecting station (1') to a station (1''') for joining the head end of its web of wrapping material to the tail end of the web of the finished unwinding reel (1'') and then from the joining statioin (1''') to the unwinding station (1''''), where the replacement reel (1'''') is passed to the unwinding mandrel (20). <IMAGE></p> |
