Extrusion head for blow molded extruded plastic containers

Details Extrusion head for blow molded extruded plastic containers Extrusion head for blow molded extruded plastic containers

B - Operations, Transporting

29

C

B29C 49/42 (2006.01) B29C 47/22 (2006.01)

Patent

CA 2297389

An extrusion head for blow molding extruded plastic containers. with a ring gap nozzle having a mandrel and a ring-shaped nozzle body having an elastically deformable sleeve, and setting devices for radially deforming the elastic sleeve. The sleeve defines a nozzle gap, the width of which is variable by axially movement of the mandrel and/or of the nozzle body. The geometry of the gap can be changed by deforming the sleeve in the course of extrusion of a hose-like. pre-shaped blank. The sleeve is axially supported in the nozzle body, and/or on the mandrel only on segment-like surfaces.

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