Cylinder interior electrostatic spraying equipment

The utility model discloses electrostatic spraying equipment for the interior of a cylinder, and relates to the technical field of electrostatic spraying equipment. The electrostatic spraying equipment for the interior of the cylinder comprises a placing plate, a sliding rail is fixed to one side of the top of the placing plate, a mounting plate is arranged on one side of the sliding rail, a rotating cylinder is rotationally connected to the mounting plate, a driven gear is arranged on the top of the rotating cylinder, a lifting cylinder is clamped in the driven gear, and the lifting cylinder is sleeved with a threaded cylinder in a threaded mode; the threaded cylinder is fixedly connected with the mounting plate, a paint spraying head is fixed to the bottom of the lifting cylinder, the rotating cylinder, the lifting cylinder and the threaded cylinder are arranged, and the lifting cylinder is forced by the static threaded cylinder to move up and down while rotating, so that the lifting cylinder moves axially