Tension control of a fin forming device

Details Tension control of a fin forming device Tension control of a fin forming device

1995-11-27

1997-06-24

Larson, Lowell A.

Metal deforming

By use of 'flying tool' engaging moving work

Included in plural deforming stations or passes

72 86, B21D 1304

Patent

active

056408706

ABSTRACT:
A fin mill machine (12) for forming strip stock (14) into corrugated fins (16) to form heat exchanger fins or the like. The fin mill machine (12) includes a tension control subsystem (20) employing a pneumatic cylinder (32) to create the tension which is controlled by a first feedback loop that automatically adjusts cylinder pressure based upon tension as measured by a strain gauge (44). Adjustments to the pressure in the pneumatic cylinder (32) can also be made by a second feedback loop based on air pressure measurements from a pressure transducer (58) for use in a set-up or trouble shooting mode.

REFERENCES:
patent: 2975817 (1961-05-01), Neff
patent: 3367161 (1968-02-01), Avakian
patent: 4033492 (1977-07-01), Imai
patent: 4059000 (1977-11-01), Bodnar
patent: 4753096 (1988-06-01), Wallis
patent: 4953378 (1990-09-01), Wallis
patent: 5022161 (1991-06-01), Gray et al.
patent: 5207083 (1993-05-01), Bongiovanni et al.

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