| 摘要 |
A multihead incisor for incising at least two sides of lumber or timber and in one pass produces a higher incision density than can be achieved without two or more passes on existing single roll incisors. The incisor comprises at least two sets of incisor rolls, each set having two or more rolls spaced apart in one plane representing a side of a piece of lumber or timber moving in the one plane, a first incisor roll in each set having incising teeth positioned to make a pattern of incisions in the one plane, a second incisor roll in each set, downstream of the first incisor roll, positioned to make a second pattern of incisions over the first pattern of incisions in the one plane, and a system to synchronize rotation of the first and second incisor rolls in each set to ensure combination of the first and second patterns of incisions is to a predetermined final pattern of closely spaced apart incisions on at least two sides of a piece of lumber or timber.
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