Two-stage extruder

Details Two-stage extruder Two-stage extruder

1980-06-10

1982-08-31

Coe, Philip R.

Agitating

Rubber or heavy plastic working

With specified vent means

366 77, 366 83, 366 91, 366193, 366307, A21C 110, B28C 716, B29F 301

Patent

active

043470033

ABSTRACT:
A two-stage extruder having a first, vertical stage and a second, separately driven, horizontal stage, the two stages being off-set from one another and lying at tangents to one another in the region of a connecting passage. The first stage has a rotatable plasticizing member with kneading blades off-set from one another and located between conveying screw components of said member and cylindrical pins projecting into the working chamber of said first stage. A bearing is provided for the member at its upper end and a cylindrical sleeve surrounds the lower end of the member and can be turned to control the effective size of the connecting passage or to eject material through a second outlet.

REFERENCES:
patent: 1486328 (1924-03-01), Fraser
patent: 3392962 (1968-07-01), Fritsch et al.
patent: 3729178 (1973-04-01), Stade
patent: 3749375 (1973-07-01), Hermann et al.
patent: 4199263 (1980-04-01), Menges et al.

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