Device and method for changing a sheet pile in a sheet pile feeder

Abstract

A device for changing a sheet pile (14) in a sheet feeder (10) for a sheet treating machine comprises a main pile supporting unit (18) with a main pile actuating unit (20) for lifting and lowering the main pile supporting unit (18), wherein the main pile supporting unit (18) comprises a supporting surface (22) adapted to support a pallet (16) carrying a sheet pile (14). The device further comprises a residual pile supporting unit (24) with a residual pile actuating unit (26) for lifting and lowering the residual pile supporting unit (24). The residual pile supporting unit (24) comprises a plurality of residual pile bars (38) extending substantially parallel to each other and being substantially parallel to the supporting surface (22) of the main pile supporting unit (18), wherein the residual pile bars (38) are coupled to a bar actuating unit (43) adapted to move the residual pile bars (38) on a line parallel to the direction of extension of the respective residual pile bar (38) into a sheet pile region (30) and retract the residual pile bars (38) from the sheet pile region (30). The bar actuating unit (43) is configured to retract the residual pile bars (38) while introducing an oscillatory movement of the residual pile bars (38) along the direction of extension of the residual pile bars (38). Further, a method for changing a sheet pile (14) in a sheet feeder (10) is presented.

Dependencies are inferred from the claim text.