Take hollow screw's extruder

The utility model relates to a take hollow screw's extruder, including extruding aircraft nose, hopper, electric heat circle etc, hollow screw passes through radial bearing, thrust bearing and stand installation location at the right -hand member, extrudes the left end that the aircraft nose lies in hollow screw, and the barrel cover is established outside hollow screw, and the dabber is established in hollow screw, and the left end at the barrel is installed to the hopper, the electric heat snare is established outside the barrel, and first heat -resisting sealing washer is established between the right -hand member of hollow screw and barrel, and the heat -resisting sealing washer of second is established between hollow screw and dabber, characteristics have all designed the helicla flute at hollow screw's outer profile and interior die cavity, and the design of outer profile has an outer helicla flute, and the design of interior die cavity has an inside spin groove, are equipped with the through -hole in outer helicla flute of intercommunication and inside spin groove at hollow screw's helicla flute right -hand member, the revolving to on the contrary of outer helicla flute and inside spin groove, and the discharge gate of hopper and outer helicla flute feed through. It has simple structure, can shorten hollow screw's length greatly, can also prolong the life of machine, is showing the productivity ratio that improves the machine, advantages such as increasing the heat efficiency.