Patent ID: 9457437
Filing Date: 2016-10-04
CPC Classification: B23P,B65G

Claim Text:
1. A device for supplying small parts comprising: a large-diameter disc that is driven and rotates on a horizontal axis thereof; a hopper disposed close to the large-diameter disc at at least a lower half side of one of side surfaces of the large-diameter disc, wherein the hopper is configured to accommodate therein the small parts in bulk; a first magnet embedded in the one side surface of the large-diameter disc so as to be exposed at the one side surface of the large-diameter disc, wherein the first magnet attracts, at an outer circumferential side edge portion of the one side surface of the large-diameter disc, one of the small parts accommodated in an accommodation space of the hopper; a small-diameter disc disposed close to the large-diameter disc at an upper side of the large-diameter disc so that an axis of the small-diameter disc is parallel to the axis of the large-diameter disc, wherein the small-diameter disc is driven and rotates on an axis thereof; a separation chute disposed between the large-diameter disc and the small-diameter disc so as to span a space between the large-diameter disc and the small-diameter disc, wherein the separation chute separates the small parts that are attracted to the large-diameter disc by the first magnet from the large-diameter disc, and receives the small parts; a second magnet embedded in the small-diameter disc, wherein the second magnet attracts, on an outer circumferential surface of the small-diameter disc, the small parts that are on the separation chute; a parts-output port disposed close to the small-diameter disc at an opposite side to the separation chute with respect to the small-diameter disc, wherein the parts-output port separates the small parts that are attracted to the small-diameter disc from the small-diameter disc, and outputs the small parts; a rotation driver that drives rotation of the large-diameter disc and the small-diameter disc; a detector that detects the small parts outputted to the parts-output port, wherein the detector performs the detection of the small parts while the small parts are being attracted on the outer circumferential surface of the small-diameter disc; and a controller that controls a drive control of the rotation driver, configured to: wherein the hoppers, the separation chutes and the small-diameter discs are symmetrically provided at both sides of the large-diameter disc respectively, wherein the first magnet is embedded in the other of the side surfaces of the large-diameter disc with phase position of the first magnet shifted with respect to phase position of the first magnet embedded in the one side surface of the large-diameter disc, wherein the second magnet is embedded in each of the small-diameter discs, and phase positions of the second magnets are shifted to each other in a rotation direction of the small-diameter discs, wherein both the small-diameter discs share the common parts-output port and a common detector, and wherein the small parts accommodated in both the accommodation spaces of the hoppers are alternately outputted to the common parts-output port through the large-diameter disc and both the small-diameter discs.