PCB dust sticking machine

The utility model discloses a PCB dust sticking machine which comprises a support, dust sticking rollers, a collecting roller, assembly lines, at least two clamping jaws and two rotary encoders, the number of the dust sticking rollers is at least two, the two dust sticking rollers are rotationally arranged on the support in a stacked mode in the vertical direction, and the assembly lines are arranged on the two sides of the dust sticking rollers. The PCB can be placed on the assembly line, the two collecting rollers are rotationally arranged on the support in the vertical direction and located on the faces, away from each other, of the two dust sticking rollers, the collecting rollers can be driven by the driving motor to rotate, and the power sliding rail is provided with two moving ends. The two clamping jaws are fixed to the two transverse rods respectively, the dust sticking paper can be wound around the collecting roller, the rotary encoder is fixed to the support, and the rotary encoder is electrically