B - Operations – Transporting – 27 – B
Patent
B - Operations, Transporting
27
B
B27B 5/08 (2006.01) B27B 7/02 (2006.01) B27B 31/08 (2006.01) B27C 1/00 (2006.01) B27G 19/08 (2006.01) B27L 5/00 (2006.01)
Patent
CA 2054938
An apparatus and a method serve for cutting elongate pieces of wood having a modulus of elasticity between 50,000 and 400,000 kg/cm'. A circular saw blade is provided having a plurality of spaced peripheral teeth. The saw blade is rotated about an axis at a cutting speed exceeding 40 m/s. The pieces of wood are displaced relative to the saw blade along a feeding direction extending perpendicular to the saw blade axis of rotation. A stationary bending element is arranged on a broad side of the saw blade adjoining the cutting teeth. The bending element has a radially profiled surface with a thickness increasing towards the axis and decreasing towards the cutting teeth. The saw blade can be used to cut a slot into the pieces of wood along the feeding direction, thus generating a first and a second section of the pieces of wood. The bending element ensures that the first section is lifted from the saw blade immediately after the formation of the slot. A deflection element is arranged at a first distance from the bending element downstream along the feeding direction. The deflection element exerts a first force on a first surface of the first section facing away from the bending element. A supporting element is arranged at a second distance from the bending element downstream along the feeding direction with the second distance being smaller than the first distance. The supporting element exerts a second force on a second surface of the first section facing the bending element.
Barrigar & Moss
Wurster U. Dietz Gmbh U. Co. Maschinenfabrik
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