Plastic article or earthenware shaping or treating: apparatus – Means feeding fluent stock from plural sources to common... – Extrusion shaping means
Patent
1990-07-12
1991-10-29
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Means feeding fluent stock from plural sources to common...
Extrusion shaping means
425188, 425462, B29C 4714
Patent
active
050611666
ABSTRACT:
An extruder head for producing profiles of rubber and/or plastic mixtures has a stationay main part which has a forward face in which the discharge ends of at least two extruders, rigid with the stationary main part open. The stationary main part has a transverse pivot shaft at one side of the forward face and, at the side opposite the pivot shaft, an abutment which projects forwardly of the forward face. A movable main part is pivoted, with play, on the pivot shaft and is swingable between a closed position in which it overlies the forward face and an open position. An extrusion die unit is disposed between the outboard end of the movable main part and the abutment. Flow channels between the movable main part and the stationary main part lead from the extruders to the extrusion die unit. Hydraulically operated clamps hold the movable main part in closed position and a hydraulic servo motor exerts on the movable main part a force parallel to the forward face of the stationary main part and directed toward the abutment. In one embodiment, there are two movable main parts pivoted at opposite sides of the stationary main part and having an extrusion die unit between them.
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Baumgarten Wilfried
Becker Klaus
Budiman Paul
Gohlisch Hans-Joachim
Burns Robert E.
Lobato Emmanuel J.
Matney, Jr. William J.
Paul Troester Maschinenfabrik
Woo Jay H.
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