Plastic article or earthenware shaping or treating: apparatus – Female mold and means to shape parison directly by internal... – Including means to prepare parison
Patent
1986-06-02
1988-02-09
Hoag, Willard E.
Plastic article or earthenware shaping or treating: apparatus
Female mold and means to shape parison directly by internal...
Including means to prepare parison
1984701, 1988037, B29C 5118, B29C 4928
Patent
active
047239069
ABSTRACT:
A reheat blow molding machine has an improved article handling system that carries heated preforms by a carriage assembly from an oven to a roller chain conveyor which moves them to a blow mold from whence the blown product is moved to an eject station. The motions are linear and cyclical or periodic, drive means for such intermittent motions being provided. Preforms are handled in groups of four, each one being supported by its capping ring in a locating notch on the carriage and by the finish groove in a holder notch above it when it is transferred to the conveyor. All notches are open on the side facing the oven and have self-centering features to get and keep alignment for transfer and positioning at the blow mold. The carriage which moves preforms horizontally toward the conveyor and raises them to the elevation for transfer to the holder notches of the conveyor. Transfer happens when the carriage passes underneath the conveyor whereupon the holder notches of the conveyor engage the preform grooves and sweep or wipe the preforms out of the open side of the carriage notches. The conveyor roller chain moves linearly at right angles to the carriage path and delivers correctly aligned group of preforms to a corresponding group of blow molds.
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Cincinnati Milacron Inc.
Hoag Willard E.
Worth Daniel P.
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