Apparatus for adjusting die lips for extrusion molding

Details Apparatus for adjusting die lips for extrusion molding Apparatus for adjusting die lips for extrusion molding

1990-02-09

1991-09-24

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Control means responsive to product weight or dimension

425466, B29C 4716

Patent

active

050510827

ABSTRACT:
An improved apparatus for controlling a plurality of die lips arranged in the direction of width of an extrusion molding die through which molten resin is extruded in the form of a sheet (or a film) so as to allow the die lips to be displaced back and forth. The apparatus includes a plurality of stud bolts fastened to the die lip with each bolt having a flange portion for holding Belleville springs which are received below the flange portion of the stud bolt. An arrangement is provided to compress the Belleville springs which includes plurality of adjustment bolts.

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