Article accumulator for use with a robotic hand

Abstract

An article accumulator is designed for use with a robotic hand. The accumulator comprises an open frame having an endless open conveyor for receiving and transporting individual aligned rows of generally flattened articles such as frozen burger patties. A receiving section of the accumulator initially receives the flattened articles in rectilinear rows. The rows of articles are then passed to a pick section of the accumulator. Operably associated with the pick section are a repositioning system and a lifting system. The repositioning system comprises an actuator, a set of plate members with vertically extending fingers, and a stop fence. The plate members are positioned below the open conveyor so that upon programmed activation, the plate members move upwardly a sufficient distance that their fingers encompass a number of articles. The fingers ensure that the articles are properly positioned. The lifting system is also positioned below the endless open conveyor holding the articles. It comprises an actuator and a set of lift rails connected thereto. The lift actuator is programmed to lift the articles above the open conveyor after they are properly positioned. While in the elevated state, a robotic hand picks them off the lift rails and deposits them into open-top cartons for distribution.