Apparatus for selecting closures

摘要

An apparatus for selecting closures with a cylindrical raised edge out of a supply of closures present in one plane with the back to the one or the other side. The apparatus has a hopper that in cross section is rectangular with mutually spaced side walls between which the closures fit, side edges and a lower sloping edge having an opening below which a first worm extends parallel to the lower edge. The first worm has a curved profile in which said raised edge of the closure fits. A side wall adjoining the opening of the lower wall has an opening in which a cylindrical shaft is present with its outer face tangential to the plane of the side wall and extends parallel to and is driven synchronously by the first worm in the same direction. The shaft extends with the worm until outside the side wall and merges into a second worm with the same pitch and has a width of thread that is substantially smaller than the inner diameter of the raised edge of the closure such that the first worm discharges the closures that are not correctly oriented.