The utility model relates to a kind of
low resistance rotary heating screw structure of modified plastic, including: outer tube, it is set at the inner cavity of modified plastic extruder, outer tube is conically arranged, and the top of outer tube is provided with feed
pipe;Conical cylinder is rotationally arranged in the inside of outer tube, the outer
peripheral wall of conical cylinder is wound with two spiral blades, one end of two spiral blades is provided with communicating
pipe, communicating
pipe and the inner cavity of conical cylinder are interconnected, and the inside of
spiral blade is provided with flow channel.The utility model relates to the technical field of modified plastic
extrusion screw.The
low resistance rotary heating screw structure of the modified plastic, when material enters to the inside of outer tube through feed pipe, by larger
pitch, and cooperate conical cylinder of conical arrangement, the rapid paving of material can be realized, make
solid material quickly flatten, reduce the accumulation of
solid material, avoid the friction between
solid material to influence screw rotation, and then reduce the friction of screw.