Sheet metal bending apparatus

Details Sheet metal bending apparatus Sheet metal bending apparatus

1976-12-03

1977-09-06

Combs, E. M.

Metal deforming

By deflecting successively-presented portions of work during...

With feeding of discrete articles or orienting of work...

72177, 72181, 72187, 72227, 72234, B21B 3902, B21D 508, B21B 124

Patent

active

040459896

ABSTRACT:
An apparatus for bending sheet metal wherein a plurality of forming rolls are utilized. The rolls are situated at succeeding stations, and a first bending station includes a roll having forming protrusions in spaced apart relationship on the roll surface. The roll also defines drive elements which are engageable by the sheet so that movement of the sheet against a roll drive element operates to drive the roll and to thus move a forming protrusion into contact with the sheet for bending the sheet. Shift means are associated with this roll for locating the drive elements and protrusions in different positions to thereby control the particular drive element engaged by the sheet whereby the particular forming protrusion which performs the bending function can be pre-selected.

REFERENCES:
patent: 1955410 (1934-04-01), Colbie
patent: 2370702 (1945-03-01), Yoder
patent: 2942506 (1960-06-01), Merting et al.
patent: 3344641 (1967-10-01), Pomory
patent: 3595056 (1971-07-01), Hutton
patent: 3750446 (1973-08-01), Jones
patent: 3777531 (1973-12-01), McClain
patent: 3796081 (1974-03-01), Boardman

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