Apparatus for blow molding plastic articles

Details Apparatus for blow molding plastic articles Apparatus for blow molding plastic articles

1975-06-11

1977-01-25

Lazarus, Richard B.

Plastic article or earthenware shaping or treating: apparatus

Diverse distinct type shaping means

Shaping orifice and either a downstream preform reshaping...

425DIG204, 425DIG211, 425DIG213, 425DIG215, B29C 1767

Patent

active

040048721

ABSTRACT:
A method of and 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 registerable with the pre-form blowing location and the final blow mold location, these tubes are utilized for the blowing operation and also transfer the preform 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.degree. traverse, 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.

REFERENCES:
patent: 2715751 (1955-08-01), Weber
patent: 3767747 (1973-10-01), Uhlig

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