Intake device of powder selector

The invention discloses an intake device of a powder selector. The intake device of the powder selector comprises a conical hopper arranged at the bottom of the powder selector; the middle part of the conical head is encircled with an annular intake pipe; and multiple size-adjustable intake valves are uniformly distributed on the outer wall of the annular intake pipe. The intake valves include valve bodies; at least one fan-shaped intake port is formed in the valve bodies; valve pieces matched with the intake ports are rotationally mounted in the valve bodies; and the middle parts of the valve bodies are rotationally connected with knobs fixedly connected with the valve pieces. The intake device of the powder selector replaces a traditional powder selector only having a size-fixed inlet, prevents the problem of fixed discharge quality of the powder selector due to incapability of selecting the powder size caused by incapability of adjusting the intake quantity, and is simple in structure, convenient to adjust