Sheet-processing machine having a suction air producing device

A sheet-processing machine, comprising:

• a revolving sheet holding device for aiding in transporting sheets to be processed, said revolving sheet holding device including a suction bar extending transversely to a sheet transport direction and having suction elements disposed thereon and two revolving endless flexible drives holding ends of said suction bar;
• a device for producing suction air or air blast, including:
• a movable air delivery element accommodated on said revolving sheet holding device;
• an actuating element cooperatively engaging with said air delivery element for driving said air delivery element, said actuating element being one of fixed to a machine frame and movable relative to said sheet holding device;
• and
• at least one further air delivery element accommodated on said suction bar for acting on at least one further suction element, said at least one further air delivery element being driven in common by said actuating element.

A sheet-processing machine, comprising:

• a revolving sheet holding device for aiding in transporting sheets to be processed;
• a device for producing suction air or air blast, including:
• a movable air delivery element accommodated on said revolving sheet holding device;
• an actuating element cooperatively engaging with said air delivery element for driving said air delivery element, said actuating element being one of fixed to a machine frame and movable relative to said sheet holding device;
• and
• said movable air delivery element including an impeller rotatable within a cylindrical pump housing of an oscillating pump, said impeller having a drive connection through a rotational drive shaft to a roller element rolling on a cam disk fixed to the machine frame and forming said actuating element.

In a sheet-processing machine having a revolving sheet holding device for aiding in transporting sheets to be processed, a device for producing suction air or air blast, comprising:

• a movable air delivery element accommodated on the revolving sheet holding device;
• an actuating element cooperatively engaging with said air delivery element for driving said air delivery element, said actuating element being one of fixed to a machine frame and movable relative to the sheet holding device;
• and
• said movable air delivery element including an impeller rotatable within a cylindrical pump housing of an oscillating pump, said impeller having a drive connection through a rotational drive shaft to a roller element rolling on a cam disk fixed to the machine frame and forming said actuating element.