| 摘要 |
A continuous series of vials carried by their caps on reciprocable vacuum chucks on a turret move continuously (a) through a gross visual inspection station while slowly rotated and under side, top, and back lighting, and with each vial in an intense beam of light from below which moves with the vial; (b) then, while raised into stabilizing cups, across a spinner belt which rotates the cups and vials at high speed; and (c) then, while stopped with their contents rotating, through a particulate visual inspection station with similar lighting for observation of foreign matter suspended in the contents. Inspectors have unrestricted view of each entire vial, except only for the top of the cap, in a continuous series for comparison or pattern inspection and can, with a finger, tap defective vials off the chucks to a reject conveyor for reinspection. The vacuum chucks are on spindles which are biased upward against a fixed cam which lowers them for pickup, positions them for gross inspection, raises them into the stabilizing spinner cups, and lowers them for particulate inspection and delivery. The turret is vertically adjustable to position the chucks for different bottle heights. The intense bottom light beams which move with the vials are transmitted from fixed light sources through separate fiber optic bundles with their outer ends fixed in a light wheel which rotates with the turret. Polarized back light may be used to enhance inspection for particular purposes as desired. |
