Method for cutting veneer from logs

B - Operations – Transporting – 27 – L

Patent

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Details

B27L 5/02 (2006.01)

Patent

CA 2537893

The ivnention concerns a method for peeling veneer from a log (2). Veneer (4) is peeled tangentially from the circumferential surface of a log rotated around its longitudinal axis under conditions determined by the distance (knife gap) between the knife (3) and the nose bar pressing the surface of the log immediately in front of the cutting point. The peeling knife as well as the nose bar is moved towards the rotation axis of the log corresponding the proceeding of the peeling. At the ending stage of the peeling, the distance between the peeling knife and the nose bar is reduced substantially in accordance with the thickness of the veneer being peeled.

L'invention concerne un procédé de déroulage de placage à partir d'une bille (2). Le placage (4) est déroulé tangentiellement à partir de la surface circonférentielle d'une bille entraînée en rotation autour de son axe longitudinal dans des conditions déterminées par la distance (écartement du couteau) entre le couteau (3) et la barre de compression pressant la surface de la bille immédiatement en face du point de découpe. Le couteau de déroulage ainsi que la barre de compression sont déplacés vers l'axe de rotation de la bille correspondant au déroulage. Lors de la phase finale du déroulage, la distance entre le couteau de déroulage et la barre de compression est réduite sensiblement conformément à l'épaisseur du placage déroulé.

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