Extrusion blow head

Details Extrusion blow head Extrusion blow head

B - Operations, Transporting

29

C

B29C 47/22 (2006.01) B29C 47/92 (2006.01)

Patent

CA 2509434

A blow head for extruding a tubular plastic preform from an outlet gap between a fixed die core (2) and a die body (10) 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 (21, 23), if the die body (10) has its upper end, facing away from the outlet gap, pivotably mounted in the blow head and a pressure ring (12) is positioned in the outlet gap, on which the actuating devices (21, 23) act.

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