| 摘要 |
<p>Method and apparatus for scaling, sorting, processing, cutting-up and the like of elongate timber items with two substantially parallel, longitudinal surfaces achieved by processing, during longitudinal feed of the item, including determination of a given lateral position and/or form of the item at at least one position along the item, e.g., a cross-section or cross-sectional element, with the aid of sensing means. The method determination takes place with the aid of touch-free distance-sensing means with predetermined measuring directions, fixed and discrete, for determining distances to at least two measuring points on the surface of the timber item, said measuring points being substantially in a cross-section or cross-sectional element of the timber item and on either side of a reference line across the cross-section or cross-sectional element. The sensing takes place in two completely or partially counter-directed measuring directions, which, as seen in the longitudinal direction of the timber item, substantially meet or intersect each other at a point situated on the reference line, where the respective measuring direction, seen in the longitudinal direction of the timber item, forms an angle to the reference line, and/or takes place in at least two measuring directions parallel to the existing processing plane and parallel to the reference line, the distance information thus obtained being utilized for determining a given lateral position and/or shape.</p> |
