초록 ▼

A mixer assembly for mixing fluid material in the bore of a barrel wherein the mixer assembly includes structure for mixing and pumping toward its outlet end the material fed thereto comprising a stator assembly fixed in the barrel having outer cylindrical surface portions conforming substantially t

A mixer assembly for mixing fluid material in the bore of a barrel wherein the mixer assembly includes structure for mixing and pumping toward its outlet end the material fed thereto comprising a stator assembly fixed in the barrel having outer cylindrical surface portions conforming substantially to the surface of the bore and having a stator bore provided with a groove-interrupted inner surface, and a driven rotor member having a groove-interrupted outer surface confronting the inner stator surface. The inner stator surface and outer rotor surface each have continuous helical grooves cut therein along a helical path which changes in depth with length from a small minimum depth to a larger maximum depth but never disappearing and having a plurality of axially spaced circumferential grooves at planes perpendicular to the bore center axis subdividing such surfaces into axially spaced serially arranged mixer sections with portions of the helical grooves extending between the circumferential grooves defining each section.

대표청구항 ▼

A mixer assembly for mixing fluid in an elongated bore of a barrel formation through which the fluid is fed comprising a housing having a barrel portion defining an elongated cylindrical bore having inlet and outlet ends and a rectilinear longitudinal center axis for feeding of plastic or fluid mate

A mixer assembly for mixing fluid in an elongated bore of a barrel formation through which the fluid is fed comprising a housing having a barrel portion defining an elongated cylindrical bore having inlet and outlet ends and a rectilinear longitudinal center axis for feeding of plastic or fluid material to said outlet end; said mixer assembly having means for mixing and pumping toward said outlet end said material fed to said inlet end comprising a stator assembly fixed within said barrel portion adjacent said outlet end having outer cylindrical surface portions fitted within and conforming substantially to the surface of said cylindrical bore and supported against rotation in the bore and having a stator bore provided with a radially inwardly facing groove-interrupted contoured material working first surface, a driven rotor member having a groove-interrupted outwardly facing material working contoured second surface confronting said first surface rotatable within said stator bore, said first and second surfaces being of generally cylindrical configuration each having continuous helical grooves cut therein along a helical path which changes in depth with length from a small minimum depth to a larger maximum depth but never disappearing and having a plurality of axially spaced circumferential grooves encircling the associated surface along respective planes perpendicular to said center axis subdividing said first and second surfaces into axially spaced serially arranged mixer sections with portions of said helical grooves extending between the circumferential grooves defining each section, the helical grooves being disposed at a helix angle of less than 45°to provide groove pumping of the material toward said outlet end and producing transfer of the material from the rotor member grooves to the stator assembly grooves and back to the rotor member grooves several times during progression of the material along the length of the mixer assembly.