摘要:
There is provided a component-feeding device for an electronic component-mounting apparatus which has a main block for carrying out electronic component-pickup and mounting operations. The component-feeding device selectively transports a plurality of pallets on each of which at least one tray containing a number of electronic components is placed, to a pickup position for picking up supplied one of the electronic components. A selected one of the pallets is vertically transported selectively to different levels according to a height of the at least one tray on the selected one of the pallets. The selected pallet vertically transported to the selected level is horizontally transported to the pickup position.