EXTRUDING PRESS FOR MAKING SHAPED PRODUCTS WITH REGULATED CROSS SECTION OF SHAPING DUCT Russian patent published in 2001 - IPC

FIELD: procession of thermoplast materials, possibly in branches of industry where extrusion processes are used. SUBSTANCE: extruding press for making shaped products with regulated cross section of shaping duct includes housing, shaping flange joined with housing, auger and calibrating die. Flange has grooves. Die includes mounted with possibility of motion shaping plates. Calibrating die is mounted with possibility of reciprocation motion along guides of housing in parallel to axis of auger. Grooves of die are similar to those of guiding flange arranged along circle. In grooves of guiding flange springs are mounted. Opposite ends of springs engage with grooves of die. Shaping plates are provided with rollers mounted on their ends and engaging with feelers of guiding flange. EFFECT: stabilized pressure in zone before die at changing technological parameters of process during extrusion of different raw material. 2 dwg