Roller head extruder unit

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

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Details

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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