Adjustable extruder die assembly, die lip adjustment apparatus, and method

摘要: An annular thermoplastic foam extrusion die assembly is provided which has an die, a plurality of lip paddles, lifting mechanism, and guide member. The first body with second lip. positioned adjacent the configured relative to form groove therebetween. includes trench having undercut, sloped back wall. circumferential opposite paddles are spaced apart about groove. Each paddle tip heel. be received for pivotal movement in heel engage wall as raised drive toward adjust local position gap formed mechanism raising lowering each individually. member positioning radial direction pivotally A method also provided.