A Drip Coffee Bag Packing Machine with an Outer Envelope automatically creates single-serve, hanging-ear coffee bags (like for Mandheling or Brazil coffee) by filling non-woven inner bags with grounds, sealing them (often with ultrasonic sealing), adding a tag/thread, and then placing them into a heat-sealed, nitrogen-flushed outer pouch for freshness, ensuring quality and efficiency. These machines feature PLC controls, touchscreen interfaces, precise dosing (5-15g), and can handle various granular products, integrating inner and outer packaging in one streamlined process. 

You can find these machines from manufacturers and suppliers specializing in food packaging, often listed on B2B platforms like Made-in-China.com, Bags and Pouches, LLC, Honda Pack, Xiamen Sengong Packing Equipment Co., Ltd, and Coffee Machines Sale.