Machine for folding sheet metal blanks

Details Machine for folding sheet metal blanks Machine for folding sheet metal blanks

1984-02-24

1986-01-07

Larson, Lowell A.

Metal deforming

By relatively movable offset tool-faces

Plural

72210, 72387, 72404, B21D 1702

Patent

active

045627215

ABSTRACT:
The invention relates to a machine for folding sheet metal blanks. For folding a sheet metal blank, there is provided at least one folding member having a folding surface and being driven by an eccenter to perform a reciprocating beat movement. The sheet metal blank is drawn into the gap between the folding member and a stationary anvil for folding. The folding member is pivotally mounted in a holder for ease of operation and to obtain a neat folding. So the folding member is adapted to adjust to the instantaneous resistance of deformation of the sheet metal blank. If a sheet metal blank is to be folded twice, a corresponding second folding member, which is also pivotally mounted in a holder, is disposed downstream of the first folding member.

REFERENCES:
patent: 4060046 (1977-11-01), Eckold et al.
patent: 4181002 (1980-01-01), Eckhold
patent: 4372022 (1983-02-01), Puckett
patent: 4434644 (1984-03-01), Gargrave

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