Plastic article or earthenware shaping or treating: apparatus – Immersed shaping orifice discharging directly into liquid...
Patent
1979-01-10
1981-11-17
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Immersed shaping orifice discharging directly into liquid...
264142, 425311, 425313, 425315, B29C 1714
Patent
active
043008771
ABSTRACT:
A conventional underwater plastic pelletizer of the type using a rotatable knife hub is improved by securing to the knife hub a diverter plate for confining the flow of inlet water to the region adjacent the face of the die plate. The cutting knives are mounted on the rotating hub at a rake angle with respect to the hub center and tilted at an angle with respect to the surface of the die plate so as to effectively pull a cut pellet away from an extruded plastic strand, and the die plate is heated by an organic heat exchange fluid. The result is a substantial reduction in orifices frozen off by cooled polymer.
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Sterling Extruder Corp.
Woo Jay H.
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