RAW WOOD CUTTING CONTROLLER, RAW WOOD CUTTING CONTROL METHOD AND RAW WOOD CUTTING SYSTEM

• Main Author: KOIKE MASARU
• Format: Patent
• Language: English; Japanese
• Published: 25.05.2017
• Subjects: MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOODFIBRES OR WOOD POWDER; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; NAILING OR STAPLING MACHINES IN GENERAL; PERFORMING OPERATIONS; PHYSICS; REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; TESTING; TRANSPORTING; WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL

PROBLEM TO BE SOLVED: To enable a raw wood cutting method to suitably be selected so that the yield and productivity of the whole of veneers may improve while making the ratio of a production number of veneers approximate a predetermined ratio.SOLUTION: A raw wood cutting controller comprises a first calculation part 72 that calculates a first volume representing the volume of a part capable of producing first veneers in the case where raw wood RW is not divided, a second calculation part 73 that calculates a second volume representing the volume of a part capable of producing second veneers in the case where raw wood RW is 2-divided at the center, and a cutting method decision part 74 that decides to cut the raw wood RW without dividing the raw wood RW when the proportion of the second volume to the first volume is smaller than a predetermined threshold value, and to cut the raw wood RW by 2 division at the center when larger than a threshold value. This manner enables the ratio of the number of first veneers to be produced to the number of second veneers approximate a predetermined ratio. Further, such a raw wood can be used for producing the first veneers that unnecessary parts occur as little as possible.SELECTED DRAWING: Figure 3 【課題】単板の生産枚数の比率を所定の比率に近づけつつ、単板の全体の歩留りおよび生産性が向上するように、原木の切削方法を適切に選択可能にする。【解決手段】原木ＲＷを分割しなかった場合の、第１単板を生産可能な部分の体積である第１の体積を算出する第１の算出部７２と、原木ＲＷを中央で２分割した場合の、第２単板を生産可能な部分の体積である第２の体積を算出する第２の算出部７３と、第１の体積に対する第２の体積の割合が、所定の閾値以下の場合、原木ＲＷを分割せずに切削すると決定し、所定の閾値よりも大きい場合、原木ＲＷを中央で２分割して切削すると決定する切削方法決定部７４とを備える。これにより、生産される第１単板の枚数と第２単板の枚数との比率を所定の比率に近づけることができるようにする。また、できるだけ不要な部分の発生が少なくなるような原木が、第１単板の生産に用いられるようにする。【選択図】図３