TWO-SCREW EXTRUDER WITH DISTRIBUTING BOX AND DRIVE Russian patent published in 2006 - IPC F16H1/22 B29C47/40 A21C11/20 

FIELD: mechanical engineering.

SUBSTANCE: distributing box comprises gearing rim with inner engagement and two driven shaft-pinions that are mounted inside the gearing rim and engage the inner gearing rim. The box comprises bearing units and means for locking the gearing rim, driven shaft-pinions, and bearing units. The means for locking the gearing rim, driven shaft-pinions, and bearing units is made of interconnected front and back walls arranged from the face of the gearing rim. The outer side of the gearing rim is provided with means for setting the gearing rim in motion.

EFFECT: simplified structure.

22 cl, 5 dwg