Adjustable sheet feed for printing machine uses pneumatic flow channel with pivoted upper part below sheet feed path adjusted to match sheet characteristics

摘要

The sheet feed has a flow channel (15) supplied with pressurised or suction air, its flexible, pivoted upper part positioned below the sheet feed path and provided with spaced air openings. The upper part of the flow channel is coupled to the flow channel lower part, secured to the machine frame via an air-tight flexible bellows allowing pivot adjustment of the upper part via an automatic or manual setting device.