The invention discloses a hardware spraying
machine with
polishing and
rust removing functions and a using method, and belongs to the technical field of spraying devices. The hardware spraying
machine comprises a
workbench, a vertical plate is fixedly connected to the upper surface of the
workbench, four air cylinders are fixedly connected to the left side face of the vertical plate, and a
rust removing mechanism is installed at the telescopic end of each air cylinder; and a spraying mechanism and an
air drying mechanism are installed on the upper surface of the
workbench. According to the
machine, by arranging the
rust removing mechanisms, a rotary disc, a motor, a first rotary shaft, the air cylinders and a gear, the motor drives the first rotary shaft and the rotary disc to rotate so as to drive a hardware
water pipe body to rotate, circular tables are rotated to adjust the positions of the two circular tables, the circular tables push rust removing blocks to move away from a square
barrel to proper positions, the telescopic ends of the air cylinders stretch and retract, therefore, the rust removing mechanisms are driven to move left and right in the hardware
water pipe body to remove rust on the inner wall of the hardware
water pipe body, and the rust on the inner wall of the hardware water
pipe body is removed in a physical rust removal mode.