Method for the stiffening and straightening of starting sheets

Details Method for the stiffening and straightening of starting sheets Method for the stiffening and straightening of starting sheets

1981-03-02

1983-11-08

Larson, Lowell A.

Metal deforming

By use of 'flying tool' engaging moving work

Including orbitally-moving tool-face

72199, 72251, 72379, 72414, 72422, B21D 1302, B21D 1304, B21D 3106, B21D 4300

Patent

active

044134959

ABSTRACT:
In the method of the invention starting sheets are stiffened and straightened by pressing or rolling upon the sheet various stiffening patterns projecting from the plane of the sheet, the starting sheet being rolled or pressed from both sides by means of a roller or a press the opposite surfaces of which have the patterns, while the starting sheet is suspended by its lugs.
An apparatus is disclosed having conveyors for conveying the starting sheets and a roller or press for embossing stiffening patterns upon the starting sheets, the roller or press having two parallel rollers or press plates, provided with regularly alternating depressions and corresponding protrusions, at least one of the press plates being movable in the lateral direction, the roller or press being mounted below the suspension conveyor for the starting plates in such a manner that a starting sheet suspended by its lugs from the suspension conveyor passes through the roller or press.

REFERENCES:
patent: 1836368 (1931-12-01), Eppensteiner et al.
patent: 2576240 (1951-11-01), Rothe
patent: 2578968 (1951-12-01), Cook et al.
patent: 3051216 (1962-08-01), Tomka et al.
patent: 3096808 (1963-07-01), Holsteyn
patent: 3661756 (1972-05-01), Spoon
patent: 3696656 (1972-10-01), Nara et al.

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