Blow molding apparatus

Details Blow molding apparatus Blow molding apparatus

1974-09-19

1976-10-19

Lazarus, Richard B.

Plastic article or earthenware shaping or treating: apparatus

Preform severing means

Plural distinct cutters

264 99, 264151, 425302B, 425305B, 425387B, B29C 1714, B29D 2303

Patent

active

039868079

ABSTRACT:
A plurality of molds, each consisting of a pair of relatively movable mold halves, are mounted on a turntable equidistant from the center of turntable rotation, and are moved successively through a receiving sector where they engage and grip a workpiece such as a heated tube fed tangentially to the circular path of movement of the molds. Positioning pillars located on each side of a workpiece cutting device mounted between adjacent molds, engage the workpiece and correct the attitude thereof relative to each receiving mold and to each cutting device, which also is equipped with means for gripping the cut ends of the workpiece when each mold is opened at the end of the molding cycle. A reciprocating mechanism enables the center of turntable rotation to be moved toward and away from the tangential workpiece feeding path in synchronism with the movement of each mold through the workpiece receiving sector, so that the positioning pillars move through this sector in a straight line parallel to the workpiece feeding path.

REFERENCES:
patent: 2819490 (1958-01-01), Froot
patent: 3243847 (1966-04-01), Fogelberg
patent: 3763297 (1973-10-01), Del Piero et al.
patent: 3809521 (1974-05-01), La Fosse

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