Servo electric driven stretch rods for blow molding machine

Details Servo electric driven stretch rods for blow molding machine Servo electric driven stretch rods for blow molding machine

1991-12-16

1992-12-08

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Mold motion or position control

425529, 425530, 425535, B29C 4912

Patent

active

051697050

ABSTRACT:
Apparatus includes a blow mold, a holding device for holding the parison within the blow mold, a blow device for forming a blown article in the blow mold and a stretch rod for stretching the parison movable in the holding device. A device is provided for determining the position of the stretch rod in the holding device channel and for synchronizing the transmission of high pressure fluid to the parison based on the position of the stretch rod.

REFERENCES:
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patent: 4354813 (1982-10-01), Collombin
patent: 4522581 (1985-06-01), Schad et al.
patent: 4540543 (1985-09-01), Thomas et al.
patent: 4690633 (1987-09-01), Schad et al.
patent: 4818212 (1989-04-01), Gibbemeyer

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