B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/529
B29C 49/42 (2006.01) B29C 49/16 (2006.01) B29C 49/32 (2006.01) B29C 49/04 (2006.01)
Patent
CA 1048219
METHOD OF AND APPARATUS FOR BLOW MOLDING PLASTIC ARTICLES ABSTRACT A method of an apparatus for blow molding a plastic article by forming a parison into a blown pre-form and then blowing the pre-form into the final article. The final blow mold is fixed, and the pre-form mold is movable from a parison-forming location to a pre-form blowing location. An arcuately movable turret carries a plurality of blow tubes sequentially re- gisterable with the pre-form blowing location and the final blow mold location, these tubes are utilized for the blowing operation and also transfer the pre- form to the final mold location. The turret thus traverses the two blowing locations, but not the parison-forming location. The turret may also traverse additional thermal conditioning or ejection stations, or the like, if desired. The turret may also move vertically for mold clearance, if necessary. The turret can oscillate between the two blow mold stations or can rotate through a complete 360° trasverse, as required by the number of indexing positions desired. Novel mechanism is provided to supply blow air to the blow tubes at each of the blowing locations.
223766
Krall Thomas J.
Uhlig Albert R.
Na
Owens-Illinois
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