Extrusion apparatus for mixing and extruding of thermo-plastic a

Details Extrusion apparatus for mixing and extruding of thermo-plastic a Extrusion apparatus for mixing and extruding of thermo-plastic a

1990-12-20

1992-07-14

Jenkin, Robert W.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

366 89, 366 90, 425207, B29B 106

Patent

active

051297299

ABSTRACT:
An extrusion apparatus is provided for the mixing and extrusion of thermo-plastic and thermo-setting materials and the pelletizing of thermo-set materials, in which a rotor member is rotatable within a barrel member. The apparatus is articulated into three sections including a barrel entrance section, a forcing section and a metering section. Each section is provided with helical rotor extrusion grooves, and is followed by a circumferential barrier and a rotor to barrel to rotor transfer zone. The circumferential barrier is provided with a clearance, barrier top to barrel bore, designed to pass fluent material and retarding the over-size and less fluent material. The leading edge of the circumferential barrier is provided with multiple dual purpose plows which, direct the fluent material down-stream and the over-size and less fluent material up-stream for additional working. The circumferential barrier communicates with the co-acting receiving geometry of the barrel and effects the transfer of the fluent material to the barrel grooves. The barrel grooves co-acting with the smooth surface of the rotor are arranged to have various extrusion rates so as to displace the material longitudinally and thereby achieve longitudinal blending. The barrel extrusion grooves discharge into the barrel sending grooves which transfer the material from the barrel back into the rotor receiving geometry.

REFERENCES:
patent: 4118164 (1978-10-01), Gene
patent: 4640672 (1987-02-01), Ellwood
patent: 4872761 (1989-10-01), Geyer

Affiliated with

Also associated with

Rating

Extrusion apparatus for mixing and extruding of thermo-plastic a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Extrusion apparatus for mixing and extruding of thermo-plastic a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extrusion apparatus for mixing and extruding of thermo-plastic a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-331454