Unpacking and feeding device for composite steel pipe powder raw materials

The utility model relates to the technical field of composite steel pipe production, in particular to an unpacking and feeding device for composite steel pipe powder raw materials, which comprises a feeding box, and a feeding mechanism is telescopically arranged in the feeding box. The feeding mechanism is used for feeding a material bag containing raw materials into the feeding box, a plurality of unpacking cutters for automatically unpacking the material bag are rotatably arranged in the feeding box, a discharging groove is formed in the bottom of the feeding box, an electric control valve is arranged above the discharging groove, and the electric control valve is connected with the feeding box. The electric control valve is used for controlling the discharging amount of raw materials, a fluidized bed is fixedly arranged at the bottom of the feeding box, and a pressure sensor is arranged at the bottom of the fluidized bed. The problems that in the prior art, the feeding mode of composite steel pipes is most