Apparatus for the automatic, uniform drawing-in of elastomeric m

Details Apparatus for the automatic, uniform drawing-in of elastomeric m Apparatus for the automatic, uniform drawing-in of elastomeric m

1978-08-22

1981-09-01

Woo, Jay H.

Agitating

Rubber or heavy plastic working

With specified feed means

264 407, 425135, 425147, B28C 704

Patent

active

042868823

ABSTRACT:
A method of, and apparatus for, automatically and uniformly drawing-in elastomeric material into worm extruders comprising at least one draw-in roll for the material mixture, arranged in spaced relationship in front of the extruder worm or screw and driven independently of the worm. The draw-in roll is driven in a manner such that it only can transmit a predetermined adjustable rotational moment which is limited towards an upper range, or, if desired, the rotational speed of the draw-in roll is controlled as a function of a maximum upwardly limited pressure prevailing within a draw-in or infeed pocket between the draw-in roll and the worm or screw.

REFERENCES:
patent: 1156096 (1915-10-01), Price
patent: 2384521 (1945-09-01), Andersen et al.
patent: 2411660 (1946-11-01), Manning
patent: 2755506 (1956-07-01), Weber
patent: 3155750 (1964-11-01), Dahn et al.
patent: 3396429 (1968-08-01), Geyer
patent: 3636149 (1972-01-01), Tambini
patent: 3712773 (1973-01-01), Baumgarten
patent: 3728056 (1973-04-01), Theysohns
patent: 3858857 (1975-01-01), Ulm

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