Extruder slot die head

Details Extruder slot die head Extruder slot die head

1975-03-17

1976-10-26

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For extrusion or injection type shaping means

425225, 425376, 425461, B29F 300

Patent

active

039880974

ABSTRACT:
Ejecting means, in a slot die head to extrude plastic material in a strip, whereby material left in the slot die head after extrusion has ceased can be removed, comprising a piston mounted with its crown flush with the inner wall of a distributing passage in the slot die head, so that, after the slot die head has been opened by separately upper and lower parts thereof, the piston can be moved hydraulically to project into the distributing passage to lift the residual material away from the wall of the distributing passage containing the piston to facilitate grasping of the material by an operator and stripping from the slot die head.

REFERENCES:
patent: 2239408 (1941-04-01), Wallace
patent: 2918714 (1959-12-01), Garvey
patent: 2979768 (1961-04-01), Nichols
patent: 3183552 (1965-05-01), Farkas
patent: 3393426 (1968-07-01), Meienberg
patent: 3902835 (1975-09-01), Theysohn

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