Blow molding machine

Details Blow molding machine Blow molding machine

1989-05-02

1990-07-24

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

Including blowing medium supply means

425540, B29C 4936, B29C 4958

Patent

active

049432290

ABSTRACT:
The invention relates to a control means for actuating the valves for supplying pressurized blowing fluid and working fluid to the blow mold stations of the blow wheel of a blow mold machine. The blow wheel comprises a center-free wheel ring of which the outer periphery is rotatably supported on a base. Facing the inner periphery of the wheel ring there is a stationary rail on which carriages are adjustably mounted. The carriages accommodate cams for actuating the plungers of the valves mounted on the wheel ring through a yoke which provides a self-holding action. Thus, adjusting of proper valve operation is facilitated while the operation of the blow molding machine is continued.

REFERENCES:
patent: 2901769 (1959-09-01), Sherman et al.
patent: 3954370 (1976-05-01), Pollock et al.
patent: 4036925 (1977-07-01), Kauffman et al.
patent: 4285657 (1981-08-01), Ryder

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