Die tool and press monitor and product quality analysis apparatu

Details Die tool and press monitor and product quality analysis apparatu Die tool and press monitor and product quality analysis apparatu

1994-11-01

1996-10-15

Jones, David

Metal deforming

With use of control means energized in response to activator...

Including use of sensor responsive to energy input to tool...

72 201, 72 204, H01R 4304, B23P 1900

Patent

active

055642985

ABSTRACT:
A die tool wear monitor and analysis system identifies tooling wear, variations in the quality of the manufactured product, and undesired operational conditions within a press. A first signal indicates the angular position of a reciprocating ram and a second signal indicates the force differential present between the tooling components. The second signal is plotted relative to the first signal and defines a value of force differential for selected positions of the upper and lower tooling relative to each other. Preferred values consisting of at least one upper and one lower limit are established for each of the second signals with respect to each of the first signals. The second signal is compared to the established preferred values and when it falls beyond them, the manufacture part is ejected and/or the operation of the conversion press is terminated.

REFERENCES:
patent: 4408471 (1983-10-01), Gossard et al.
patent: 4692857 (1987-09-01), Chi
patent: 4945742 (1990-08-01), Schoch
patent: 5027631 (1991-07-01), Naito
patent: 5271254 (1993-12-01), Gloe et al.
patent: 5423199 (1995-06-01), Mangrulkar

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