Screw extruder and calender assemblage

Details Screw extruder and calender assemblage Screw extruder and calender assemblage

1975-12-08

1977-06-07

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

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

Feed control of material en route to shaping area

264 404, 425327, 425DIG235, B29C 306

Patent

active

040280314

ABSTRACT:
A screw extruder-calender assemblage consists of a screw extruder and a pair of calender rolls disposed adjacent to the discharge end of the extruder and normal to the lengthwise axis thereof. An equalization chamber between the extruder discharge end and the input side of the calender rolls is formed by the discharge crosswise end of the extruder, peripheral positions of the calender rolls and two side walls; the crosswise width of the chamber adjacent to the calender being equal to the length of the working gap. The quantity of material in this chamber during operation varies with variations in the output of the extruder but always provides a quantity of material sufficient to assure uniform output from the calender rolls.

REFERENCES:
patent: 2382177 (1945-08-01), Schanz
patent: 3947201 (1976-03-01), Ellwood

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