Pivoting barrel injection molding machine

Details Pivoting barrel injection molding machine Pivoting barrel injection molding machine

1993-05-14

1994-09-20

Heitbrink, Tim

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

425192R, 425569, 425574, B29C 4518

Patent

active

053484649

ABSTRACT:
An injection molding apparatus comprising two spaced, parallel lower guide rods mounted to an undercarriage. A ram carriage and a barrel carriage are slidingly mounted on the lower guide rods. A feedscrew ram extends from the ram carriage into a tunnel formed in the barrel carriage to inject plastic out of a nozzle attached to the end of the barrel farthest from the ram carriage, and into a mold. Two spaced, parallel upper guide rods extend from the barrel carriage to slidingly engage the ram carriage. A pair of hydraulic cylinders displace the ram carriage with respect to the barrel carriage. A third hydraulic cylinder displaces the barrel carriage with respect to the undercarriage. The undercarriage, pivotally mounted to a base, is pivoted by a screw jack which displaces the undercarriage about an arcuate path.

REFERENCES:
patent: 3436793 (1969-04-01), Trueblood
patent: 3981655 (1976-09-01), Horbach
patent: 4076475 (1978-02-01), Trueblood
patent: 4846652 (1989-07-01), Hehl
patent: 5011396 (1991-04-01), Cosman et al.

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