Abstract: The apparatus comprises a carousel carrying a plurality of peripherally distributed cups and slidable supports, respectively aligned with the axes of the cups, pick-up and metering assembly forming a spoon member facing in the direction of rotation of the carousel and adapted to be selectively placed in communication with suction and blowing means. The apparatus further includes an extruder nozzle for the plastic material which is stationary relatively to the carousel and opens at the pick-up and metering assembly so as to allow withdrawal of a metered amount of plastic material by said spoon.