| 摘要 |
PURPOSE:To supply air in accordance with the amount of stacked sheets on a tray, by enabling continuous blow-out of air from an air knife, and the turn-on and -off control of the blow-out. CONSTITUTION:A air capacity reglator valve 4 is disposed in a duct 2 through which an air knife 1 is connected to a blower 3. A cable 7 is wound up on the shaft of a rotary valve 6 having openings 5, 5 located at diametrically opposed positions in a cylinder. When this cable 7 is pulled by a solenoid 8 overcoming a return spring 29, the rotary valve 6 is rotated so that openings in the duct 2 corresponding to the openings 5, 5 is opened and closed. That is, if the amount of stacked sheets is large, it is left to be turned on, but if the amount of stacked sheets is small, it is turned on and off in accordance with the timing of conveyance. |
