The mixed packaging production line consists of a bucket conveyor, drum mixer, bucket conveyor, and carbon steel packaging machine. The front-end bucket conveyor lifts raw materials into the drum mixer, where the rotating drum flips the particles to achieve uniform mixing (with a mixing efficiency exceeding 95%). The rear-end bucket conveyor transfers the material to the carbon steel packaging machine for metering, filling, and sealing (capable of packaging specifications ranging from 5 to 50 kg). The process is compact, suitable for automated granule mixing and packaging production in industries such as food, feed, and chemicals.