A blanks storage unit for storing a stack of blanks includes: inlet and outlet sections of the blanks; a feed device having a support device to restingly receive the blanks of the stack of blanks; and a feed element for moving the blanks along a feed trajectory from the inlet section towards the outlet section. The unit also includes a guide device. At least one of the support device or the guide device is movable with respect to the other along a lifting trajectory between a transport configuration, in which said support device defines in the section a feed plane of the blanks and the blanks rest on the support device, and a sliding configuration in which the guide device is at least partially lifted with respect to the support device and the blanks rest on the guide device to be guided, sliding along the section towards the outlet.

A system and method of packing an order. A first sequence of bins corresponding to orders is transported on a first conveyor to a packing station. A case for each order is constructed by a case forming system, the case forming system able to construct cases from blanks of various sizes. The cases are transported from the case construction apparatus to the packing station in a second sequence, wherein the sequential order of the cases corresponds to the bins in the first sequence. The bin in the first sequence are brought to the packing station with the cases in the second sequence.

The present invention relates to an inversion transfer module (60) for a converting machine having a printing module (16) comprising a first printing unit (17) arranged to print on a top side (S1) of the sheet (1), and a second printing unit (17) arranged to print a bottom side (S2) of the sheet. The inversion transfer module is arranged between the first printing unit and the second printing unit and comprises a first inversion vacuum transfer (62) arranged to contact the first side of the sheet and a second inversion vacuum transfer (64) configured to contact the second side of the sheet, whereby the inversion transfer module is configured to change the side of adherence and transportation of the sheet.

A system for conveying blanks to a stacker creates a big enough time gap between a last blank of a current stack and the first blank of the next stack to allow the stacker to discharge the current stack without interrupting the feed of new sheets for the next stack.