Press for manufacture of dimensionally stable articles from powd

Details Press for manufacture of dimensionally stable articles from powd Press for manufacture of dimensionally stable articles from powd

1988-08-31

1990-01-02

Hoag, Willard

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For press shaping surface

100280, 425352, 425411, 4254501, B29C 4304, B30B 1102

Patent

active

048909980

ABSTRACT:
A press for producing dimensionally stable moldings from powdered materials is described whereby a press frame and a press platen are provided in a press body and are linked together in movement by means of a drive and form a main press plunger. A hydraulic press part with at least two additional press axes is mounted in front of the main press plunger between the press frame and press platen. The second hydraulic press axis of hydraulic press part is actuated and controlled by its first axis through a hydraulic coupling device that has a variable transmission ratio, while the first axis of the hydraulic press part is in turn actuated by the press frame of the main press plunger. The movement ratios of the second press axis of the hydraulic press part can then be varied relative to the main press axis.

REFERENCES:
patent: 3587136 (1971-06-01), Hermes
patent: 3802818 (1974-04-01), Watanabe et al.
patent: 4105385 (1978-08-01), Hehl
patent: 4153399 (1979-05-01), Dejantis
patent: 4260346 (1981-04-01), Anderson
patent: 4380427 (1983-04-01), Hehl
patent: 4482307 (1984-11-01), Shaidl et al.
patent: 4565116 (1986-01-01), Hehl
patent: 4636167 (1987-01-01), Shibata

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