A blade feeder (1) is described, suitable for transporting and compacting doses of long pasta (7) in a packaging machine after dosing performed by a dosing machine of long pasta (7) which is placed after a production line of the long pasta (7), following a conveyor adapted to direct the long pasta (7) inside the dosing machine, to be dosed and discharged into the feeder (1). The feeder (1) comprises a frame (2), a motor (3), a plurality of carriers (5) adapted to slide along at least one track (41-43) of the feeder (1) adapted to draw a closed path, and transmission means (6, 8, 61) driven by the motor (3) and adapted to move the carriers (5). Each carrier (5) comprises a pusher (51) having a blade (511) adapted to push a dose of long pasta (7). The feeder (1) further comprises a cam assembly (4). (Fig.1).