Metal deforming – By use of 'flying tool' engaging moving work – With cutting
Patent
1987-12-31
1989-06-13
Larson, Lowell A.
Metal deforming
By use of 'flying tool' engaging moving work
With cutting
72187, B21D 1304
Patent
active
048380652
ABSTRACT:
A corrugating web forming apparatus for receiving selectively a plurality of webs of flat material and slitting each of said webs to form two strips which are thereafter shaped to form corrugations and severed to form shaped portions having predetermined lengths, predetermined height and predetermined spacing between the corrugations which comprises a slitting station including at least two sets of slitting rolls adapted to be used selectively for slitting a respective web, a forming station including at least two sets of forming rolls for transversely corrugating two strips severed from a web simultaneously, a plurality of longitudinally roll pack stations comprising at least two sets of forming rolls for controlling the longitudinally spacing between the corrugations on the strips, a web control station including at least two sets of rolls for engaging and intermittently interrupting the movement of the corrugated strips, and a cutting station for cutting predetermined lengths from said corrugated strips. Provision is made for adjusting the orientation of the rolls of one packing station relative to another to adjust the pitch or distance between corrugations. Provision is also made for selectively driving one set of the forming rolls for each strip without driving the other set of forming rolls.
REFERENCES:
patent: 767883 (1904-08-01), Grafton
patent: 2071584 (1937-02-01), Shippy
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