Full-automatic cleaning device for 3D printer nozzle

The utility model discloses a 3D printer nozzle full-automatic cleaning device in the technical field of 3D printer nozzle cleaning equipment, and the 3D printer nozzle full-automatic cleaning device comprises a shell, the left side of the shell is rotatably provided with a protection door through a first hinge and a second hinge, the right side of the top wall of the shell is fixedly provided with a stepping motor, and the right wall of an inner cavity of the shell is fixedly provided with an electric control sliding rail; a lead screw is rotationally installed in the electric control sliding rail, a power shaft of the stepping motor penetrates through the top wall of the shell to be fixedly connected with the top end of the lead screw, a sliding block is connected to the lead screw in a threaded mode, the sliding block is installed on the electric control sliding rail in a sliding mode, and a fixing mechanism is fixed to the end, away from the electric control sliding rail, of the sliding block through a co