Presses – Reciprocating press construction – With mechanical force multiplier
Patent
1996-03-04
1997-02-25
Gerrity, Stephen F.
Presses
Reciprocating press construction
With mechanical force multiplier
74 55, 83615, B30B 126
Patent
active
056050968
ABSTRACT:
There is disclosed a mechanical pressing machine utilizing a drive cam, in which an unbalanced inertia force produced during a reciprocal movement of a slider or press member is canceled without producing a flexure in the whole of the pressing machine, thereby enhancing a dynamic precision. A drive cam and a rib cam are fixedly mounted on one end portion of an input shaft, and the slider is reciprocally moved vertically by the drive cam, and a balance weight is driven in the slider in a direction opposite to the direction of movement of the slider through the rib cam, sliding blocks, arms and the balance weight, so that an inertia force produced during the reciprocal movement of the slider is canceled by an oppositely-directed inertia force of the balance weight.
REFERENCES:
patent: 3358592 (1967-12-01), Bradlee
patent: 3662640 (1972-05-01), Wrona
patent: 4638731 (1987-01-01), Kato
patent: 5317893 (1994-06-01), Eigenmann et al.
Ubertragungsfunktionen fur Kurvengetriebe mit Doppelhubbewegungen, p. 414 Maschinenbautechnik 28 (1979), Prof. Dr.-Ing. habil. J. Volmer (KDT), Dr.-Ing. R. Brock (KDT), Dipl.-Ing. G. Uhlig (KDT) Technische Hochschule Karl-Marx-Stadt.
Gerrity Stephen F.
Seisakusho Sankyo
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