Pre-cooling device facilitating material taking

The pre-cooling device comprises a box body, a second servo motor is fixedly installed at the middle end of the bottom of an inner cavity of the box body, the output end of the second servo motor is fixedly connected with a rotating plate, the middle end of the top of the rotating plate is fixedly connected with a column body, and the middle end of the top of the column body is fixedly connected with a second servo motor. And a first servo motor is fixedly installed at the bottom of an inner cavity of the column body, the output end of the first servo motor is fixedly connected with a threaded rod, and the upper end of the outer surface of the threaded rod is in threaded connection with a lifting block. After people move equipment to a designated area, a second servo motor is started to work through an external controller, the second servo motor drives a rotating plate to rotate, the rotating plate drives a column body to rotate and adjust, a first servo motor is started to work through the external controlle