Spherical Shutter Metering Apparatus for Tire Compounds

The patent applies a single metering station equipped with multiple interchangeable metering elements (screw augers, vibrating channels, and gravity feeders) that can be selected based on ingredient type. This universal station design eliminates the need for multiple dedicated stations, reducing overall metering time while maintaining adaptability to handle powders, flakes, pellets, and viscous liquids through appropriate element selection.

The patent merges multiple dedicated metering stations into a single integrated station by providing multiple metering elements (screw auger, vibrating channel, gravity feeder) within one station structure. Each element maintains its specialized functionality for specific ingredient types, preserving metering accuracy while reducing the total number of stations and system complexity.

The patent implements automatic bag loading and unloading mechanisms at the metering station. The system automatically positions bags, loads ingredients through the selected metering element, and removes filled bags without operator intervention. This self-service automation maintains flexibility in handling various ingredient types while eliminating manual labor requirements.

The patent implements enclosed metering chambers and sealed ingredient transfer pathways that create a controlled environment preventing ingredient dispersion into the surrounding atmosphere. The system uses enclosed conveyors and sealed hoppers to contain powders, flakes, and pellets during metering operations, eliminating contamination risks while maintaining operational simplicity.