Press speed control and indication system

Details Press speed control and indication system Press speed control and indication system

1982-07-14

1984-05-29

Bonck, Rodney H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

100 43, 192 002R, 192 0096, B30B 1526, B60K 4102

Patent

active

044509464

ABSTRACT:
The present invention relates to a speed control and indication system for a mechanical press. In order to enable the press to operate at its full running speed on the first cycle thereof after actuation of the clutch, the flywheel is driven at a speed higher than the set running speed so that as the mechanical inertia of the drive mechanism will cause the press to slow down to its set running speed. The control circuit modifies the speed control voltage after actuation of the clutch so that the press continues to run at the set speed even after the mechanical inertia is overcome. The signal from the tachometer to the speed meter is modified before actuation of the clutch so that it provides a reading at the set running speed of the press even though the flywheel is running at a higher speed. After the clutch is actuated, the true tachometer voltage is fed to the speed meter so that it continues to indicate the true running speed of the press.

REFERENCES:
patent: Re22432 (1944-02-01), Winther
patent: 1953230 (1934-04-01), Hollander
patent: 2939973 (1960-06-01), Crane et al.
patent: 3088063 (1963-04-01), Fehn
patent: 3157807 (1964-11-01), Kimberly
patent: 3407724 (1968-10-01), Heiberger

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