Method and device for stacking flat material sheets, and device and sheet metal printing machine for processing and/or treating material sheets in the form of metal sheets

A device for stacking flat material metal sheets in a sheet metal printing machine, which sheet metal printing machine includes at least one of a printing unit and a coating unit, the device for stacking flat material metal sheets comprising;

• at least one pile delivery having a stacking space, above which stacking space incoming flat material metal sheets received from the sheet metal printing machine can be conveyed by a conveyor system in a sheet transport direction and can be deposited in the stacking space in the at least one pile delivery, one on top of the other, to form a pile of the flat material metal sheets;
• a pile carrier that is movable vertically within the stacking space;
• a front stop for aligning the incoming flat material metal sheets flush along an upstream side of the pile of the flat material metal sheets during the formation of the pile of the flat material metal sheets in the stacking space;
• a rear stop for aligning the incoming flat material metal sheets flush along a downstream side of the pile of flat material metal sheets during the formation of the pile of the flat material metal sheets;
• a loading aid, which loading aid is movably positionable on an upper surface of the pile carrier and, on which loading aid the pile of the flat material metal sheets to be formed can be received;
• a loading aid positioning aid having alignment aids, which alignment aids are usable for positioning the loading aid on the pile carrier one of in and transverse to a transport direction of the flat material metal sheets, which positioning aid is usable to define a location of the loading aid selectively in a first position on the pile carrier in the stacking space, in which first position a downstream edge of the loading aid is aligned substantially vertically with the rear stop, as viewed along the transport direction in a second position in the stacking space, in which second position an upstream edge of the loading aid is aligned substantially vertically with the front, as viewed along the transport direction.