| 摘要 |
PROBLEM TO BE SOLVED: To supply even thin raw timber to a veneer lathe without any troubles.SOLUTION: A method for supplying raw timber is used for a raw timber centering device A that includes a temporary centering mechanism A1, a raw timber rotating mechanism A2, an outer periphery detection mechanism A3 and the like, and a raw timber supply device B that includes a raw timber gripping mechanism B1, a raw timber moving mechanism B2 and the like. The raw timber centering device A determines a rotational axial center of raw timber D that satisfies desired conditions, based on contours of a plurality of places of the raw timber D, and the raw timber supply device B grips the raw timber D to move and supplies it so as to match the rotational axial center with the center axis of the spindle 17 of a veneer lathe C. In such a case, only when a calculated diameter of the raw timber D corresponding to the rotational axial center is less than a predetermined diameter, as an exception, irrespective of the rotational axial center, in both butt ends of the raw timber D, the raw timber gripping mechanism B1 grips a place where a part away by a predetermined distance or more from a temporary axial center Q corresponding to the approximate diameter of the raw timber D is present, and supplies the raw timber so as to match the temporary axial center Q with the center axis of the spindle 17. |
