Method and apparatus for metering of loose objects, such as granular objects, powders, or capsules

摘要

A volumetric metering device includes a hopper adapted to hold a supply of granular material, the hopper having an outlet; a rotating wheel located in communication with the outlet, the rotating wheel having an outer periphery and a plurality of metering cavities distributed around the outer periphery, each metering cavity having an open bottom portion; and a plurality of metering valves located around the outer periphery of the rotating wheel with each metering valve located in registry with one of the metering cavities. Each metering valve is movable between a loading position wherein the metering valve blocks the open bottom portion of the metering cavity, and an unloading position wherein the granular material dispenses from the metering cavity through the metering valve. Other features and related methods are also described.

主权项

1. A volumetric metering device, comprising:
a hopper adapted to hold a supply of granular material, the hopper having an outlet; a rotating wheel located in communication with the outlet, the rotating wheel having an outer periphery and a plurality of metering cavities distributed around the outer periphery, each metering cavity having an open bottom portion; and a plurality of metering valves located around the outer periphery of the rotating wheel with each metering valve located in registry with one of the metering cavities; wherein each metering valve comprises:
a valve body defining a valve opening, the valve body pivotable between a loading position wherein the valve body blocks the open bottom portion of the metering cavity, and an unloading position wherein the valve opening is substantially aligned with the open bottom portion of the metering cavity to dispense granular material from the metering cavity through the metering valve; anda flute extending from the valve body, the flute defining a channel in registry with the valve opening, the channel having a laterally open portion adapted to receive and support a hollow cylindrical object.