Barmag Ag

Oerlikon Textile Gmbh & Co Kg

Friedel Dickmeiss

Klaus Schafer

Egon Gathmann

Klaus Sch&auml;fer

Georg Stausberg

Hans-Gerhard Hutter

Klaus Schäfer

Wolfgang Imping

Detlev Schulz

An apparatus for mixing and advancing a polymer melt, which includes a mixer and a conveying device. The mixer comprises a tubular mixing shaft (outer shaft) and an inner mixing shaft (inner shaft). The tubular outer shaft is arranged in surrounding relationship with the inner mixing shaft. Both mixing shafts extend in cantilever fashion into a mixing chamber, and a passageway is formed at the front end between the mixing chamber wall and the free end of the outer shaft, so that the mixing chamber is divided into an inner mixing chamber (inner chamber) and an outer mixing chamber (outer chamber), which are interconnected via the passageway. A melt inlet and a melt outlet are arranged in such a manner that the melt flow advances through the inner chamber and the outer chamber in opposite directions.

Apparatus for mixing and advancing a polymer melt

An extruder for melting plastic granules which is designed as a two-stage system in an integrated structural unit with an extruder chamber having an extruder screw in a heatable housing, as well as with a drying chamber having a heated conveying screw with displacement elements which dry the plastic granules and axially convey them to the extruder chamber without compression. In a preferred embodiment, the conveying screw has a larger diameter than the extruder screw, and displacement elements of greater depth than the extruder screw.

Extruder for plastic granules

Growing community of inventors

Eschweiler, Germany

Friedel Dickmeiss