Edge trimming and board ripping apparatus and method

B - Operations – Transporting – 27 – B

Patent

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Details

B27B 7/04 (2006.01) B27B 1/00 (2006.01) B27B 5/34 (2006.01)

Patent

CA 2198662

An improved saw assembly (30) includes a rotatable arbor (74) on which two or more saw blades (75) are mounted. The driving interface (96, 98) between the saw blades and the arbor permits the axis of rotation of the saw blades to be collinear with the arbor axis (90) or skewed a few degrees (94) in either direction. A saw blade positioning assembly (72) includes pairs of guide arms (84) which engage the sides (88) of the saw blades to position each saw blade at the proper location along the arbor and at the proper skew angle. The guide arms are moved in unison 30 that the axial position and the skew angle of each of the saw blades can be changed in unison before and during sawing operations.

La présente invention porte sur une scie améliorée (30) composée d'un arbre mobile (74) sur lequel sont montées au moins deux lames de scie (75). L'organe d'entraînement (96, 98) monté entre les lames de scie et l'arbre permet de régler les lames de scie de manière qu'elles tournent dans le même axe que l'arbre (90) ou que leur axe de rotation soit incliné de quelques degrés (94) dans l'une ou l'autre direction. Un mécanisme de positionnement des lames de scie (72) comprend des paires de bras de guidage (84) qui retiennent les côtés (88) des lames pour placer chacune d'elles dans l'angle d'inclinaison voulu et à l'endroit approprié sur l'arbre. Les bras de guidage sont déplacés simultanément (30) de sorte que l'axe et l'angle d'inclinaison de chacune des lames de scie puissent être modifiés au même moment, avant et pendant la coupe.

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