Driving device for a pressing machine

Details Driving device for a pressing machine Driving device for a pressing machine

1997-09-16

2000-01-11

Martin-Wallace, Valencia

Metal deforming

With means to drive tool

With means to selectably control movement of tool

72451, 100283, B21J 918

Patent

active

060123214

ABSTRACT:
A driving device for a pressing machine, particularly effective on a turret punch press, whereby both high speed processing at times of low load and high load processing at low speeds can be carried out even with a low output motor. A driving device for a press machine that transmits the rotation of a motor 12 to a press system 11 via a rotation transmission system 29 having a speed reduction gear 30, wherein a speed change gear 31 intervenes on the rotation transmission system 29. The speed change gear 31 is arranged on the input side of the speed reduction gear 30. The press system 11 is a system for exchanging a rotation movement to a linear movement, reciprocally driving the punch tool 4 and comprises the toggle system 8 and the crank system 13 or the like. With regard to control, a method 36 for exchanging the rotation transmission ratio of the speed change system 31 corresponding to the type of process is arranged.

REFERENCES:
patent: 3661008 (1972-05-01), Richardson
patent: 3785282 (1974-01-01), Kamelander
patent: 3919876 (1975-11-01), Bakermans
patent: 4653311 (1987-03-01), Tack, Jr.
patent: 5031431 (1991-07-01), Naito
patent: 5079489 (1992-01-01), Ishii

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