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
1989-05-03
1991-04-02
Theisen, Mary Lynn
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Positioning of a mold part to form a cavity or controlling...
264109, 425136, 425149, B29C 4302
Patent
active
050045768
ABSTRACT:
To monitor the pressing forces of an upper and lower piston of a tablet press which cooperate as a piston pair, in the currently-known process an average value formed from successive pressing force measurement results is compared with two adjustable tolerance bounds and that average value is correlated with two adjustable individual value limits which follow the course of this average value or are fixed. Maxima of individual pressing force measurements are compared with these individual value limits. To detect certain operational difficulties involving slight damage to an individual piston while avoiding tolerance ranges which are so narrow that frequent stopping of the press occurs piston pair average value limits, with which the piston pair average value of the pressing force is compared, are associated with the individual piston pairs. These piston pair average values are stored in a controlling computer which can stop the tablet press and indicate a faulty piston.
REFERENCES:
patent: 3255716 (1966-06-01), Knoechel et al.
patent: 4030868 (1977-06-01), Williams
patent: 4062914 (1977-12-01), Hinzpeter
patent: 4100598 (1978-07-01), Stiel et al.
patent: 4121289 (1978-10-01), Stiel et al.
patent: 4238431 (1980-12-01), Stuben et al.
patent: 4570229 (1986-02-01), Breen et al.
patent: 4680158 (1987-07-01), Hinzpeter et al.
Gruedelbach Hans-Dieter
Hinzpeter Juergen
Striker Michael J.
Theisen Mary Lynn
Wilhelm Fette GmbH
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