Extrusionskopf für eine Anlage zum Extrusionsblasformen von Hohlkörpern, insbesondere Kunststoff-Kraftstoffbehältern

摘要

An extrusion head for blow moulding plant, especially for producing plastic fuel containers, has a die housing(1), die core(2), an elastically deformable sleeve(5) at the die outlet and a sleeve deforming mechanism(6) operated by a radially acting drive unit(8). The sleeve(5) and drive unit(8) are mounted on a carrier ring(10) moved radially in the housing(1) by an additional drive unit(11) and the geometry of the annular die gap(7) is varied by both drive units acting together.