Device that extracts oil of screw oil expeller

The utility model belongs to the technical field of a screw oil expeller equipment, a device that extracts oil of screw oil expeller, improved the toper of oil press main shaft and saved to cylindrical, can make the dregs of fat thoughtlessly go out when the oil through the radial compression that toper festival compressed in -process appears in order to solve original oil press to the less time of space that has the compressed is shorter, and the oil produces very big resistance with the spin friction of toper festival, too much consumes mechanical energy. And the utility model discloses an interval festival does not rotate along with the main shaft, has avoided spin friction to the second interval again by further compression during the festival, all be the axial compression, reduced frictional resistance, can also change the triarticular entry of compression size, with the size of adjusting pressure, the utility model discloses can improve the speed of extracting oil of oil press, it is efficient. 本实用新型属于种