Magnetic vibrator sub-assembly for vibratory feed devices

Abstract

A magnetic vibrator sub-assembly for a vibratory feed device is described which provides uniform directional motion to component parts placed on its upper member through coaction of the upper member with an alternately energized electromagnetic field and restorative spring forces. The structure of the present invention involves the interconnection of a lower member and an upper member by one or more flat springs. The flat springs are angularly disposed between and support the upper member in superposed spaced, generally parallel relationship above the lower member. The springs are connected to both the lower and upper members in rabbet-type indentations such that the springs are confined by retaining barriers above, below and on the lateral edges of the springs. An electromagnetic coil is attached to the lower member and is employed to alternately flex and release the flat springs by alternately magnetically attracting (i.e., pulling down) and releasing the upper member. This action imparts a forward-only impulse motion on the component parts delivered to and placed on the upper member. The forward-only motion eventually propels the component parts to the desired pick point in proper orientation for pickup by automated or robotic pick and place machinery coacting therewith in an electronics assembly application.

Dependencies are inferred from the claim text.