| 摘要 |
To align sheets being fed to a printing machine without interruption of smooth flow of sheet feeding, the sheets are aligned while they are being fed from a stack to a set-up or alignment table 19 by imparting thereto a lateral force to direct the moving sheets towards a side or lateral stop. The vectorial lateral force component can be obtained by skewing transport belts 33 laterally, providing a transversely running belt 83 with freely movable engagement balls to press the sheets against the transversely moving belt, or tilting the transport table or conveyor system 17 and imparting vibration thereto so that the sheets will be jogged against a lateral stop 45, arriving properly longitudinally as well as laterally oriented at the set-up or alignment table for subsequent feeding into the printing machine. Preferably, the drive mechanism for the transport conveyor belts includes a variable speed transmission to selectively control overlap of subsequent sheets being fed.
|
