Mouthpiece for extruding a molding compound into a molding, and method for producing such a mouthpiece

摘要

A mouthpiece (10) for extruding a molding compound (44) into a molding (48) having internal channels (50), said mouthpiece (10) comprising: a mouthpiece frame (14) having a frame opening (16); a first core holding plate (22) fixed in the region of an upstream end of the frame opening (16) seen in the flow direction (15) of the molding compound (44); and a plurality of elongated cores (28) axially and laterally supported with an upstream end portion (26) on the first core retainer plate (22); wherein it further comprises a second core retainer plate (36) disposed downstream of the first core retainer plate (22) relative to the die frame (14) in the flow direction (15), characterized in that the second core retainer plate (36) is loosely disposed and in which Areas (32) of the cores (28) which are remote from the upstream end section (26) are radially fixed but axially but loosely arranged.