Method of and apparatus for knead-extruding plastic resin by...

Details Method of and apparatus for knead-extruding plastic resin by... Method of and apparatus for knead-extruding plastic resin by...

B - Operations, Transporting

29

C

B29C 47/08 (2006.01)

Patent

CA 2142009

ABSTRACT A plastic resin kneading/extruding method using one auxiliary equipment including a screw drive source and a resin feed hopper, and a plurality of extruding units each including a cylinder with a feed opening and a screw and having their operations composed of an extruding step of kneading and extruding the plastic resin and a cleaning step of cleaning the screw and the cylinder, characterized in that the extruding step and the cleaning step are sequentially alternated for each of the extruding units. Thus, it is possible; to realize a kneading/extruding method and an apparatus therefor, which can accomplish synthetically continu- ous extruding operations without the extruding step zone being interrupted by the cleaning step zone and which can eliminate the defects of the prior art thereby to have a high extruding efficiency. 11

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