Closed raising machine

The utility model discloses a closed raising machine which comprises a transparent cover, fixing frames, a machine frame and a raising roller, the transparent cover is arranged on the upper side of the machine frame, the number of the fixing frames is two, the fixing frames are symmetrically fixed to the front side and the rear side of the interior of the machine frame, and the raising roller is rotationally connected to the middle of the interior of the machine frame. A front guide roller is fixedly connected to the portion, on the front side of the fuzzing roller, of the machine frame, a rear guide roller is fixed to the portion, on the rear side of the fuzzing roller, of the machine frame, the front guide roller is located on the right front side of the rear guide roller, two-way motors are fixed to the middles of the two sets of fixing frames, and lead screws are fixed to the two sides of each two-way motor. The end, away from the two-way motor, of the lead screw is rotationally connected with the inner s