Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Work and feed motors
Patent
1977-07-15
1979-07-10
Truhe, J. V.
Electricity: motive power systems
Plural, diverse or diversely controlled electric motors
Work and feed motors
318571, 318634, B23Q 510, B23Q 528
Patent
active
041609379
ABSTRACT:
A machine with automatic feed speed control comprising, a work-piece advancing device for advancing a work-piece in a feed path at a feed speed, a work-piece tooling device having a tool member movable in the feed path with a portion engageably with the work-piece for tooling the work-piece and for receiving a load from the advancing work-piece through the action of the work-piece advancing device. The load is proportional to the size of the portion of the tool member engaged with the work-piece. A speed controller is connected to the work-piece advancing device for increasing and decreasing the speed thereof and thereby increasing and decreasing the feed speed of the work-piece. Work-piece sensors are provided in the feed path engageably with the work-piece for sensing the size of the portion of the tool member which will become engaged with the work-piece, which size corresponds to a maximum load on the work-piece tooling device. A transducer is connected between the work-piece advancing and tooling devices and connected to the sensors for reducing the speed of the work-piece advancing device when the maximum load set by the sensors is exceeded. Thereby, the machine always operates at full feed speed, which is reduced only when the maximum load of the tooling device is exceeded.
REFERENCES:
patent: 3646839 (1972-03-01), Shillam
patent: 3896360 (1975-07-01), Meyer et al.
Indyk Eugene S.
Truhe J. V.
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