Plastic article or earthenware shaping or treating: apparatus – Preform assembly means and means for bonding of plural... – Reshaping means utilizing fluid pressure directly contacting...
Patent
1996-06-18
1998-06-02
Heitbrink, Tim
Plastic article or earthenware shaping or treating: apparatus
Preform assembly means and means for bonding of plural...
Reshaping means utilizing fluid pressure directly contacting...
264509, 425504, 425539, 425540, B29C 4904
Patent
active
057595933
ABSTRACT:
A method and an apparatus are provided for blow-molding hollow articles. The blow-molding apparatus includes a carrousel mounted to rotate within a support frame. The carrousel carries four molds around a circular mold path. Two blow-molding work stations are disposed next to the mold path in fixed positions relative to the frame. The carrousel is indexed to cause each mold to pause by each work station one time during each carrousel revolution. The molds pause by each work station to allow blow-molding operations to be performed in conjunction with each mold at each work station. At one blow-molding work station, located at the 12:00 position of the mold path, an extruder injects parison into each mold. At the other work station, located in the 9:00 position of the mold path, a take-out mechanism extracts blow molded articles from the molds and places them upright on a conveyor. The take-out mechanism includes an oscillator arm that is rotated ninety degrees at a time between a horizontal article engagement position and a vertical article release position. A take-out member extends from the oscillator arm and includes expandable pins that extend into the molds to grip the blow-molded articles at their necks.
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Johnson David M.
Weber Lawrence H.
Heitbrink Tim
R & B Machine Tool Company
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