Advancing material of indeterminate length – With material-responsive control means – To regulate longitudinal movement of material
Patent
1993-05-17
1994-05-10
Stodola, Daniel P.
Advancing material of indeterminate length
With material-responsive control means
To regulate longitudinal movement of material
226 27, 226 35, 226 44, 226118, B65H 2304
Patent
active
053101057
ABSTRACT:
An apparatus for measuring and controlling lengths of movement of a continuous stock material strip which is intermittently fed by feed rollers along a predetermined path of travel to a machine which includes a reciprocally operable carriage having tooling for acting upon the strip. The apparatus comprises a strip measuring mechanism for engaging with and sensing a length of movement of the strip and generating a first signal representative of the length of movement of the strip. A controller receives the first signal from the strip measuring mechanism, and comparing the first signal to a second signal representative of a predetermined desired length of movement of the strip. The controller generates a shut-down signal to the machine if the difference between the first and second signals exceeds a predetermined shut-down limit range and generates a length error signal representing the difference between the first and second signals. A bridge mechanism is connected to the controller and can be manually or automatically controlled for adjusting the succeeding lengths of movement of the strip based upon the length error signal.
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Mills, Inc. Brochure entitled, "Accurate Feeding Boosts Press Production," distributed after May 24, 1990.
Bowen Paul T.
Stodola Daniel P.
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