Vibratory feeder

摘要

A feeder housing is suspended from a material supply bin and has lower and upper cylindrical members with the upper member isolated from the lower member by a flexible collar which also seals the cavity formed by the members. The lower member is suspended from the upper member and has a concave bottom wall with a discharge port. A first fixed baffle next adjacent the bottom wall is a ring with shape of a segment of a toroid with angularly oriented sides having a central opening. A second conical baffle is over the central opening and is axially displaced toward the first baffle between a closed state and a material flow open state wherein material flow is normally arrested until the housing and baffles are vibrated. In a second embodiment, a single fixed baffle comprises a pair of symmetrical cones secured inverted relative to each other over a feeder housing discharge and inlet port. The feeder is attached over a portable bin for receiving material from a storage bin to fill the portable bin by vibrating the feeder and its baffle. The portable bin is transported without the vibrating drive to a destination point where it is inverted to empty its contents. When inverted a local vibratory drive is attached to the feeder. The symmetrical baffle arrests material flow until vibrated in the inverted position. Flat suspension springs support the upper and lower members in their inverted positions.