B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
153/33
B21B 39/02 (2006.01) B21B 1/24 (2006.01) B21D 5/08 (2006.01) B21D 5/12 (2006.01)
Patent
CA 1067384
ABSTRACT An apparatus for bending sheet metal wherein a plu- rality 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 protrusions 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 en- gaged by the sheet whereby the particular forming protrusion which performs the bending function can be pre-selected.
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