Patent ID: 6067879
Filing Date: 2000-05-30
Classification: B23D

Abstract:
Procedure for straightening a circular-saw blade having a known set of blade property reference values, in which procedure the blade is mounted on a shaft between restraining members, in which procedure(1) the geometry of the blade is measured by means of a measuring device to obtain a first set of blade property measured values,(2) the first set of measured values are compared with the reference values,(3) the straightening is controlled by a control unit on the basis of the measured values and the reference values,(4) deformations in the blade are straightened by means of blade treating elements,(5) the blade is tensioned by means of working devices, further characterized in that,(6) the blade is rotated at a normal sawing speed,(7) lateral forces are applied to the blade,(8) the effect of the forces on the blade is measured while the blade is rotating to obtain a second set of blade property measured values,(9) at least one of the sets of blade property measured values are compared with the reference values to determine if the measured values are within a desired tolerance of corresponding reference values, and(10) if one or more of the measured values is not within the desired tolerance of the corresponding reference value, at least one of steps (1)-(9) is repeated in a desired order, until the desired rigidity and straightness of the blade have been achieved.