A method for transporting a workpiece by means of a processing station of a workpiece processing before the direction and the workpiece machining in front of the direction of

摘要

A method for transporting a workpiece (9) by means of a processing station (10) of a workpiece processing before the direction in which the workpiece (9) by means of a vacuum to a provided with through holes (11) conveyor belt (1) by means of a fan (7), whose power consumption is proportional to the conveyed volume flow, and which, with a constant speed, and the intake air is drawn as a volume flow is derived and the presence of a workpiece (9) on the conveyor belt (1) by means of a sensor device (17) is detected, characterized in that, in the operation of the device of the through the fan (7) transported volume flow is regulated down when the sensor device (17) with no on the conveyor belt (1) which is to work piece (9) is detected, so that the fan (7) is not switched off with a reduced power consumption, that the lower section of the fan (7) of air sucked in by means of a pressure-side line (8) is transported away and that the control of the volumetric flow in the pressure line (8) is carried out.