Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means to heat or cool
Patent
1986-09-19
1988-12-27
Chiesa, Richard L.
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means to heat or cool
2643288, 26432815, 425566, 425569, 425572, 425588, B29C 4530, B29C 4574
Patent
active
047937947
ABSTRACT:
There is provided an apparatus for the manufacture of plastic parts from thermoplastic, thermoset and/or elastomer material by injection molding or reaction injection molding. The apparatus includes a multi-station locking unit of horizontal or vertical configuration adapted to hold a number of molds, and an associated injection unit for the simultaneous injection of the molds. The apparatus further has a movable center mold clamping plate sectioned lengthwise relative to the locking direction, the two parts of the plate being kept together by a high-speed clamping device and having arranged between the parts a melt conduction system having one or a number of separate melt conduction rails. Each melt conduction rail is rigidly clamped at its face between the sectioned mold clamping plate lengthwise relative to the direction of flow of the melt. The apparatus further includes a median centering collar and a widened melt inlet with rounded side walls adapted to receive the nozzle system and which are arranged on a flange of the melt conduction rail. The nozzle system includes a movable cut-off nozzle system part capable of being displaced within itself in the direction of injection and a stationary part which is rigidly mounted on the face side of the melt conduction rail. A melt compensation system is associated with the cut-off nozzle system and located within the melt conduction rail.
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patent: 4344750 (1982-08-01), Gellert
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