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US 4,644,832 AGranted
Method for monitoring saw blade stability and controlling work feed rate on circular saw and bandsaw machines
OwnerH. Reid Smithinventor
Life of this patent
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Abstract
A position sensing transducer senses the lateral movement of the saw blade resulting from variable operating conditions. These sensed values are displayed on instrumentation for use by the saw machine operator, and are also used to automatically control work feed rates and/or rim speed of the saw blade. These automatica corrections and/or compensations maintain lateral movement of the saw blade within established limits. Optimized work feed rates and superior cutting accuracy result from this precise automatic control.
Claims4
A method of controlling vibration in saw blades comprising:
- detecting lateral movement of saw blade;
- using signal conditioning means to provide an electrical signal proportional to said saw blade movement;
- calculating referenced mean displacement, peak to peak, and displacement RMS signals;
- comparing the conditioned signals to assigned levels;
- and
- controlling the speed of the saw blade responsive to said comparison by predetermined program logic.
3 more elements
A method of controlling vibration is saw blades comprising:
- detecting lateral movement of saw blade;
- using signal conditioning means to provide an electrical signal proportional to said saw blade movement;
- calculating referenced mean displacement, peak to peak, and displacement RMS signals;
- comparing the conditioned signals to assigned levels;
- and
- controlling the work feed rate responsive to said comparison by predetermined program logic.
3 more elements
Dependencies are inferred from the claim text.