Roller head extruder unit

Details Roller head extruder unit Roller head extruder unit

1994-12-06

1997-03-04

Woo, Jay H.

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

264 407, 264175, 2641761, 425327, 425363, 4253761, 425DIG235, B29C 4792

Patent

active

056077033

ABSTRACT:
A roller head extruder unit includes an extruder unit, a pair of calender rollers arranged forward of an exit opening of the extruder unit and supported for rotation by a support frame mounted securely with respect to the extruder unit, and side guides arranged on either side of a space between the exit opening of the extruder unit and the calender rollers to thereby define a bank into which material for rolling is extruded. At least one of the upper and lower rollers is mounted for rotation in a roller housing supported by the support frame for limited movement in a direction perpendicular to the axis of the upper and lower rollers. The roller head extruder unit also includes a detection device for detecting the force with which this roller housing is caused to move as a result of accumulation of material in the bank.

REFERENCES:
patent: 3274645 (1966-09-01), Chase
patent: 3359597 (1967-12-01), Bainston
patent: 3543333 (1970-12-01), Anders et al.
patent: 4028031 (1977-06-01), Seide
patent: 4256448 (1981-03-01), Carle
patent: 4304539 (1981-12-01), Hagiwara et al.

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