Apparatus for adjusting the lip opening of an extrusion die

Details Apparatus for adjusting the lip opening of an extrusion die Apparatus for adjusting the lip opening of an extrusion die

1986-07-10

1988-02-23

Thurlow, Jeffery

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Control means responsive to product weight or dimension

264 402, 264 406, 425144, 425145, 425162, 425378R, 425379R, B29C 4792, B29C 4716

Patent

active

047267526

ABSTRACT:
Method of adjusting the lip opening of an extrusion die for stratiform material, with the characteristic that it consists in the combination of, on the one side, the control of the heating of bar shaped elements (9) which act upon at least one of the lips (6-7) of the lip opening (5), in function of the thickness of the formed material, and on the other hand, the common cooling of several bar shaped elements (9) by forcing a cooling medium along these elements (9).

REFERENCES:
patent: 2769200 (1956-11-01), Longstreth et al.
patent: 3261893 (1966-07-01), George et al.
patent: 3775035 (1973-11-01), Scotto et al.
patent: 3819775 (1974-06-01), Mules
patent: 3920365 (1975-11-01), Mules
patent: 3940221 (1976-02-01), Nissel
patent: 4252519 (1981-02-01), Farmer et al.
patent: 4281980 (1981-08-01), Hoagland et al.
patent: 4454084 (1984-06-01), Smith et al.

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