FEED SPEED AND GUIDE ARM CONTROL FOR SAWING LOGS WITH BAND SAWS

摘要

ABSTRACTA feed speed control for band saws avoids overfeedingand underfeeding of logs or cants to allow higher initialinput feeds and takes into account varying cutting depththroughout a log or cant length. The method comprises thesteps of positioning a log or cant in preparation for sawingin a saw line, projecting a first light line onto the surfaceof the log or cant at the projected saw entry line, and asecond light line onto the surface of the log or cant at theprojected saw exit line and the second light line todetermine depth of cut, and controlling the feed speed of thelog or cant during the sawing step past the saw blade, to apredetermined feed speed for the measured depth of cut toavoid overfeeding and underfeeding.