Extrusion head

Details Extrusion head Extrusion head

1985-07-19

1987-03-24

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

Extrusion shaping means

4251335, 425188, 425462, 425466, B29C 4704

Patent

active

046522247

ABSTRACT:
An extrusion head for producing profiles from different compounds comprises a body having a main fixed body portion with a plane forward face and two movable body portions which are pivotally mounted on the main body portion to pivot between a closed position in which they overlie the forward face of the main body portion and an open position. A short central channel leads from a central extruder to an extrusion die mounted in front of the forward face of the main body portion while flow channels formed between the forward face of the main body portion and the movable body portions lead from two side extruders respectively to the extrusion die. The movable body portions are moved between open and closed positions by hydraulic cylinder piston units which also hold the movable body parts in closed position during the extrusion process. Hydraulically operated clamping devices on the movable body parts releasably hold the extrusion die in position.

REFERENCES:
patent: 4137027 (1979-01-01), Ruger
patent: 4548568 (1985-10-01), Herbert et al.

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