Woodworking – With use of control means energized in response to activator... – Including use of sensor responsive to information carried by...
Patent
1978-01-30
1980-07-01
Spruill, R. L.
Woodworking
With use of control means energized in response to activator...
Including use of sensor responsive to information carried by...
83169, 83171, 83436, 83449, 51267, 125 13R, 144246F, 144249B, 198789, B27B 100, B27B 3100, E05F 1300
Patent
active
042101840
ABSTRACT:
A resaw apparatus and method for rapidly and accurately cutting elongate wood cants longitudinally. A thin-kerfed circular saw blade is utilized to cut the cants and a high-speed feed mechanism, having two sets of separately driven dual rollers which pinch the cant therebetween for both moving the cant and determining its direction of movement, urges the cant against the cutting edge of the saw blade. A pair of blade guides mounted on opposite sides of the blade hold the blade in position while water is fed through the blade guides to the side surfaces of the blade, thereby lubricating the blade-guide interface and removing heat generated by the blade guide and cutting of the wood to prevent warping of the blade from heat. The direction of movement of the cants is determined by the orientation of the two sets of rollers, which are mounted on respective movable carriages supported by slides incorporating directional alignment adjustments therein. The width of cant which may be accommodated and the centering of that cant on the saw blade is determined by a readily adjustable positioning mechanism connected to both carriages for adjusting the respective positions of the rollers. A conveyor is also provided for supplying cants to the feed mechanism more rapidly than the feed mechanism can use them, thereby abutting subsequent cants against their predecessors. The feed rollers and conveyor are controlled, powered and synchronized by a hydraulic drive and control system, while a pneumatic system provides the elastic force for pinching the feed rollers together and controlling their separation.
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Bray W. D.
Producto Machinery Corporation
Spruill R. L.
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