Cutting – Cutting motion of tool has component in direction of moving... – With means to initiate intermittent tool action
Patent
1985-08-14
1987-04-21
Schran, Donald R.
Cutting
Cutting motion of tool has component in direction of moving...
With means to initiate intermittent tool action
83303, 83315, 83321, 83346, B27L 508
Patent
active
046586849
ABSTRACT:
A clipper for cutting wood or plywood veneer transversely and other similar continuous sheet materials is described which ensures that the sheet material is cut in alignment and the cut achieves a square edge on the material. The clipper includes at least a pair of guillotine knife blades, each blade extending transverse to the sheet material, each blade cutting against a single anvil cylinder rotating in synchronization with the sheet speed. Each blade is preferably mounted in an actuating assembly which includes a crankshaft and a connecting rod. The blade is journaled to the crank of the connecting rod at its lower portion. The upper end of the connecting rod is guided along a radial line with respect to the center line of the anvil. Upon turning the crankshaft, the blade advances simultaneously vertically and horizontally into contact with the veneer. The imparted motion is such that the blade always remains substantially perpendicular to the surface of the veneer being cut. Thus the cut achieves a square edge on the veneer. The apparatus also ensures that forward conveyance of the veneer is not disturbed by the knife or anvil. Thus, the veneer is cut in transverse alignment and it exits the clipper aligned and in register with the conveyors.
REFERENCES:
patent: 2394324 (1946-02-01), Miller
patent: 4397204 (1983-08-01), Columbo
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