Mechanical press

Details Mechanical press Mechanical press

2006-09-05

2006-09-05

Donovan, Lincoln (Department: 2837)

Electricity: motive power systems

Positional servo systems

Plural servomotors

C318S560000, C318S569000, C318S594000, C318S600000, C318S630000, C100S144000, C100S178000, C100S179000, C100S214000

Reexamination Certificate

active

07102316

ABSTRACT:
In a press having a plunger supported so as to be movable linearly back and forth by drive means which include at least one servomotor in combination with a rotatably supported inertia structure connected for rotation with the servomotor, the inertia structure has an inertia moment which is small enough to permit reversal of the servomotor within a stroke length of the plunger so that the stroke of the plunger is adjustable under the control of a control device connected to the servomotor for controlling its operation.

REFERENCES:
patent: 5293106 (1994-03-01), Miyamoto
patent: 5298843 (1994-03-01), Miyajima et al.
patent: 5832816 (1998-11-01), Seto et al.
patent: 6316903 (2001-11-01), Shamoto
patent: 6337042 (2002-01-01), Nakashima et al.
patent: 6384561 (2002-05-01), Niizuma et al.
patent: 0 536 804 (1996-08-01), None
patent: 2000-312995 (2000-11-01), None

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