Plastic article or earthenware shaping or treating: apparatus – With apparatus assembly or dismantling means or with idle part – Including support or guide means for disassembled element
Patent
1986-04-15
1987-07-14
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
With apparatus assembly or dismantling means or with idle part
Including support or guide means for disassembled element
425190, 425192R, 425574, B29C 4562
Patent
active
046800026
ABSTRACT:
An injection molding machine includes an injection molding unit, an injection mold assembly, and a first drive for inserting the injection molding unit in and withdrawing it from the injection mold assembly. The injection molding unit includes a plasticizing cylinder, a feed screw accommodated therein, a carrier block form-fittingly receiving the plasticizing cylinder at the rear terminus thereof, a mechanism for axially fixing the position of the plasticizing cylinder in the carrier block, a second drive for imparting injection strokes to the feed screw and a third drive for rotating the feed screw. The plasticizing cylinder has a released position in which it is slightly withdrawn from the injection mold assembly and is separated from the carrier block. A first support situated adjacent the injection mold assembly supporting the plasticizing cylinder at the frontal end thereof and a second support situated at a distance from the first support support the plasticizing cylinder at its rear terminus. The first and second supports support the released plasticizing cylinder such that the latter is upwardly freely removable by a hoist.
REFERENCES:
patent: 3068521 (1962-12-01), Gaspar et al.
patent: 3335464 (1967-08-01), Schwartz
patent: 4278354 (1981-07-01), Hehl
patent: 4421469 (1983-12-01), Egger et al.
Heitbrink Timothy W.
Woo Jay H.
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