Extrusion head for blow molding

Details Extrusion head for blow molding Extrusion head for blow molding

2007-10-09

2007-10-09

Davis, Robert (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

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

Control means responsive to product weight or dimension

C425S381000, C425S465000, C425S466000

Reexamination Certificate

active

11148800

ABSTRACT:
A blow head for extruding a tubular plastic preform from an outlet gap between a fixed die core and a die body allows a change of the width of the outlet gap as a function of the circumference using light and small actuating devices, e.g., double-acting actuator cylinders, if the die body has its upper end, facing away from the outlet gap, pivotably mounted in the blow head and a pressure ring is positioned in the outlet gap, on which the actuating devices act.

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