Ton bag feeding device

The utility model discloses a ton bag feeding device comprising a supporting device, a ton bag clamping and overturning mechanism, an overturning power mechanism, a material collecting hopper, a belt weigher and a vacuum adsorption device; materials filled in a ton bag is put in an overturning cage, and a lifting lug of the ton bag is hung on a ton bag hook; a vacuum suction head is compressed and is adhered on the bottom of the ton bag, a vacuumizing device is started, and a vacuum suction cup sucks the ton bag; a motor is started to overturn the overturning cage, the materials in the ton bag flow into the material collecting hopper, the ton bag is sucked by the suction force of the vacuum suction head, and the materials gradually drop until all the materials in the ton bag are poured out; the overturning cage is rotated in an opposite direction, the vacuumizing device is closed and the ton bag is taken off. The ton bag feeding device disclosed by the utility model can be mechanically operated and cleaned for one time without manual assistance; the materials can be accurately metered and conveyed; the vacuum suction cup is of an elastic structure, so that the service life is long; the device is simple, and the ton bag can be overturned by 360 degrees; the ton bag feeding device is suitable for pouring and conveying the various materials packaged by the ton bags, particularly granular and powdery materials.