Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Positioning of a mold part to form a cavity or controlling...
Patent
1980-11-26
1983-08-02
Anderson, Philip E.
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Positioning of a mold part to form a cavity or controlling...
264 407, 264109, 425147, 425149, B29C 306
Patent
active
043965644
ABSTRACT:
A method of manufacturing tablets in a press having a rotary die plate cooperating with a filling device including a rotary filling wheel and a rotary dosing wheel arranged on top of the die plate, and a plurality of die plungers each projecting into an assigned die in the plate, and further including means for adjusting the vertical position of the plunger; the method comprising the steps of adjusting the rotational speeds of the filling and dosing wheels to a value at which minimum variations of compressing forces take place, comparing a predetermined range of variations of the compressing forces with the measured actual values and adjusting the weight of the tablets in process by readjusting the vertical position of the plunger in response to the ascertained difference, and thereafter readjusting the rotational speeds of the wheels to minimize the variations of the readjusted compressing forces.
REFERENCES:
patent: 2921339 (1960-01-01), Pitzer
patent: 3255716 (1966-06-01), Knoechel et al.
patent: 3734663 (1973-05-01), Holm
patent: 4000231 (1976-12-01), Peterson
patent: 4030868 (1977-06-01), Williams
patent: 4062914 (1977-12-01), Hinzpeter
patent: 4238431 (1980-12-01), Stuben et al.
patent: 4253811 (1981-03-01), Hinzpeter et al.
Deusch Rudolf
Friedrichs Konrad
Hinzpeter Jurgen
Stuben Werner
Anderson Philip E.
Striker Michael J.
Wilhelm Fette GmbH
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