ROUND OPENING FLANGING AND EXPANDING APPARATUS Russian patent published in 2005 - IPC

Abstract RU 2264273 C1

FIELD: plastic metal working, possibly expanding round openings in flat and cylindrical blanks.

SUBSTANCE: apparatus includes expanding rollers coupled through gear wheels and screw-nut transmission with drive unit; supporting roller with drive unit; casing with die. Expanding rollers are mounted along circle of carrier joined with vertical shaft. The last is joined through movable threaded joint with nut whose revolution number exceeds that of shaft. Said nut is formed as one piece with gear wheel engaged with gear wheel of other vertical shaft joined with drive unit of expanding rollers.

EFFECT: enhanced quality of articles, enlarged manufacturing possibilities.

1 dwg

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RU 2 264 273 C1

Authors

Natsun K.K.

Shnyr A.E.

Mironov A.V.

Klimenko V.G.

Fedonov L.B.

Dates

2005-11-20—Published

2004-03-29—Filed