Air center machine with pitch adjustment

Details Air center machine with pitch adjustment Air center machine with pitch adjustment

1992-01-17

1993-02-16

Larson, Lowell A.

Metal deforming

By use of 'flying tool' engaging moving work

Included in plural deforming stations or passes

72226, B21D 1304

Patent

active

051860341

ABSTRACT:
A machine for making corrugated fins or air centers for heat exchangers from strip stock has forming rolls, packing rolls, metering rolls and two pairs of pullout rolls, each pair having a different number of teeth to produce a different pitch of convolutions. The pairs of pullout rolls are mounted for movement apart or together under control of a cam mechanism so that one pair yielding the desired pitch can engage the centers to set the pitch while the other pair is moved apart to disengage the centers.

REFERENCES:
patent: 1018399 (1912-02-01), Livingston
patent: 2179849 (1939-11-01), Freeze
patent: 3791185 (1974-02-01), Knudson
patent: 3918626 (1975-11-01), McLain
patent: 4265103 (1981-05-01), Noack
patent: 4741192 (1988-05-01), Wallis
patent: 4838065 (1989-06-01), Wallis
patent: 4888972 (1989-12-01), Rouse

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