Plastic article or earthenware shaping or treating: apparatus – Means feeding fluent stock from plural sources to common...
Patent
1991-07-16
1993-06-01
Heitbrink, Tim
Plastic article or earthenware shaping or treating: apparatus
Means feeding fluent stock from plural sources to common...
2643288, 425564, 425566, B29C 4523
Patent
active
052157628
ABSTRACT:
A nozzle for an injection molding machine with a common nozzle outlet chamber to control the injection of at least two plasticized plastic components in a mold, where each plastic component is produced in a separate plasticizing unit and each such unit is connected by the shortest path to at least one separate nozzle inlet which in turn is connected within the nozzle by means of a separate channel to the common nozzle outlet chamber. Each channel is provided with its own shutoff valve that can be actuated independently in such a manner that each infeed channel extends from its nozzle inlet in a straight line to the related shutoff valve, and from it in turn over an outfeed channel in a straight line to the common nozzle outlet chamber. Both longitudinal axes of the output region of the connection from the plasticizing unit and the nozzle inlet forms with the longitudinal axis of the infeed channel; and the longitudinal axis of the infeed channel forms with the longitudinal axis of the outfeed channel; and the longitudinal axis of the outfeed channel forms with the axis of symmetry of the common nozzle outlet chamber; respective angles ranging from 140.degree. to 180.degree..
REFERENCES:
patent: 5071341 (1991-12-01), Poehlsen
patent: 5078589 (1992-01-01), Osuna-Diaz
Eder Erich
Kranitz Josef
Heitbrink Tim
Kloeckner-Ferromatik Desma GmbH
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