Single-screw extruder for producing thermoplastic and elastomeri

Details Single-screw extruder for producing thermoplastic and elastomeri Single-screw extruder for producing thermoplastic and elastomeri

1985-10-18

1987-09-29

Woo, Jay H.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

425190, 425197, 425208, B29B 712

Patent

active

046965750

ABSTRACT:
A single-screw extruder for producing thermoplastic and elastomeric products includes a hollow cylindrical barrel, which is provided with radially inwardly protruding mixing elements, which are adapted to move through recesses formed in one or more helical lands of a screw, which is rotatably mounted in the barrel. To facilitate the assembly of the screw extruder and to permit repair thereof without a need to replace the entire housing, the mixing elements (9) are provided on split rings (9), which are held axially spaced apart by interposed spacing rings, or which are clamped in position in grooves formed in adjacent annular sections of the barrel.

REFERENCES:
patent: 2813302 (1957-11-01), Beck
patent: 3804381 (1974-04-01), Bielfeldt et al.
patent: 3997147 (1976-12-01), Scherping
patent: 4178104 (1979-12-01), Menges et al.
patent: 4408887 (1983-10-01), Yamaoka
patent: 4541982 (1985-09-01), Upmeier

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