Eriez Manufacturing Co.

Other

Thomas H Falconer

William H Benson

Marshall A Carner

Jerry A Selvaggi

A vibratory feeder for feeding low density powered material having a tray, a base and a motor supporting the tray on the base. The motor includes an electromagnet having an AC coil supported on an intermediate leg between the outer legs and an armature having a permanent magnet and two pole plates. The pole plates being disposed in the spaces between the outer legs and the intermediate leg. A rare earth magnet is supported between the pole plates. Spaces between the electromagnet legs and the pole plates providing for a stroke of about 0.2 inch at a frequency of 30 Hertz and a tuning spring connecting the motor to the tray. The tuning spring being adjustable to change the deflection of the tray relative to the motor.

Electromagnetic vibratory feeder with rare earth magnet

A three mass vibratory conveyor including a base with an electromagnet, a tray supported on the base and a tuning weight. A first spring connecting the tray to the base, a second spring connecting the base to the tuning weight and a resilient support supporting the base to a support member. The mass of the tuning weight being adjustable to provide a system in which the base and tray are driven by the driver at a predetermined frequency and no relative motion takes place between the base and the tray.

Three mass vibratory feeder

A vibratory feeder having a tray with a conveying surface and springs. The springs are each made up of flat plate like first leaves and flat plate like second leaves rigidly attached together. One part of each spring is connected to the tray and the other part is connected to the base. The longitudinal axis of the leaves extend perpendicular to the longitudinal axis of the tray. The springs are spaced from each other whereby the tray is vibrated in an arcuate path relative to the base to vibrate the tray for moving material on the tray.

Electromagnetic vibratory feeder

The specification discloses a spring for powering a vibratory feeder or conveyor made up of a first leaf spring and a second leaf spring in closely spaced relation to each other. The ends of each of the two leaf springs are rigidly clamped to corresponding ends of one another and a spacer is rigidly clamped between the springs at said ends. The center of one spring leaf is fixed to the conveyor, while the center of the other spring leaf is fixed to a vibratory motor.

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Erie, PA, United States of America

Thomas H Falconer