Procedure and apparatus for straightening a circular-saw...

B - Operations – Transporting – 23 – D

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B23D 63/18 (2006.01)

Patent

CA 2220657

Procedure for straightening a circular-saw blade (2), in which procedure the blade (2) is mounted on a shaft (3). The geometry of the blade is measured, the measured values are compared with reference values, deformations in the blade are straightened by means of blade treating elements (10, 11, 12, 13, 14, 15, 16, 23, 24), the blade is tensioned by means of working devices (13, 14), the blade (2) is rotated, lateral forces are applied to the blade (2), the effect of the forces on the blade (2) is measured while the blade is rotating, the measured values are compared with the reference values, and some or all of the operations mentioned above are repeated, if necessary, in a desired order, until the desired rigidity and straightness of the blade (2) have been achieved. The invention also relates to an apparatus for straightening a blade.

L'invention concerne un procédé permettant de redresser une lame de scie circulaire (2), selon lequel la lame (2) est montée sur un arbre (3). La géométrie de la lame est mesurée, les valeurs mesurées sont comparées aux valeurs de référence, les déformations de la lame sont redressées à l'aide d'éléments de traitement appropriés (10, 11, 12, 13, 14, 15, 16, 23, 24), la lame est tendue à l'aide de dispositifs de travail (13, 14), puis elle est mise en rotation. Des forces latérales sont appliquées à la lame (2) et leur effet à son niveau est mesuré pendant qu'elle tourne. Les valeurs mesurées sont comparées aux valeurs de référence et certaines ou l'ensemble des opérations mentionnées sont répétées, le cas échéant, dans un ordre voulu, jusqu'à obtention de la rigidité souhaitée et du redressage de la lame (2). L'invention concerne en outre un appareil permettant de redresser une lame.

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