Machine for manufacturing herringbone-pleated structures

Details Machine for manufacturing herringbone-pleated structures Machine for manufacturing herringbone-pleated structures

1975-06-05

1977-03-22

Larson, Lowell A.

Metal deforming

By use of 'flying tool' engaging moving work

Included in plural deforming stations or passes

72190, 93 1H, 264287, B21D 516

Patent

active

040129322

ABSTRACT:
A machine for manufacturing herringbone-pleated structures of a type particularly suitable for use in cylindrical or flat filter elements. The machine includes consecutive feeding forming and bunching components by which a continuous band of flat sheet material, which may be pre-pleated longitudinally, is fed between a pair of endless forming assemblies which cooperate to form continuously a roughed-out shape of the final herringbone-pleated structure and which also advance to a bunching means positioned downstream from the forming assemblies. The bunching means operates to tighten up the folds of the roughed-out shape both longitudinally and transversely to provide the final structure.

REFERENCES:
patent: 2163063 (1939-06-01), Romanoff
patent: 2826239 (1958-03-01), Villoresi
patent: 2901951 (1959-09-01), Hochfeld
patent: 3809199 (1974-05-01), Bessiere

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