Extruder having degree-of-kneading adjusting device

Details Extruder having degree-of-kneading adjusting device Extruder having degree-of-kneading adjusting device

B - Operations, Transporting

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C

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B29C 47/38 (2006.01) B29B 7/48 (2006.01) B29C 47/40 (2006.01) B29C 47/58 (2006.01) B29C 47/92 (2006.01)

Patent

CA 1306838

ABSTRACT OF THE DISCLOSURE A resin extruder in which the degree-of-kneading of the resin can be effectively controlled. The invention can be applied to both a single-screw extruder and a twin- screw extruder. In either case, blocking walls are formed around a cylindrical portion of the screw or screws just upstream of the kneading section. A valve structure is provided in the walls to control the kneading of resin at the kneading section.

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