PURPOSE: To perform conveyance of a blank from a blanking process to a molding process without manual operation.

CONSTITUTION: Blanks 4 in a plurality of rows blanked by means of a rotary type die cutter 3 are accumulated classified by a row to form a blank bundle (t). After the blank bundles (t) are contained, in order, in an automatically palletized cassette C by means of a robot hand 9, the palletized cassette C is carried to a cup molder. The blank bundles (t) are taken out, in order, from the cassette C at a topmost stage and fed to the feeder of the cup molder. Containing the blank bundles (t) in the cassette C and palletizing of the cassette C are automatically carried out and the feed of the blank bundles (t) from the palletized cassette C to the feeder is also automatically effected on the cup molder side, whereby conveyance of the blanks from a blanking process to a molding process is practicable without manual operation.