| 摘要 |
For aligning sheets against front and side lays (not shown), a rotatingly driven suction plate 7 is situated in a surface on which a sheet 2 is fed in direction 24, plate 7 comprising suction openings 14 arranged in one or more (figure 3) part-annulus arrays, openings 14 communicating - on each revolution - successively with suction chambers 12, 20 situated below plate 7. The suction chambers 12, 20 have respective elongate openings 12.1, 20.1, which lie on respective diametrals 21, 21.2 offset from each other by not more than 90 degrees. The radial extent of each suction chamber opening is matched to that of the associated hole array. <IMAGE> |
