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    • 1. 发明公开
    • Method and apparatus for optimization of cutting lumber
    • 用于优化木材坯料的方法和装置
    • EP1777652A1
    • 2007-04-25
    • EP06121510.9
    • 2006-09-29
    • Illinois Tool Works Inc.
    • Gee, JeffMcAdoo, David L.
    • G06Q10/00
    • G06Q50/04G06Q10/043Y02P90/30Y10T83/0467Y10T83/155
    • A computer-based method for maximizing the use of lumber in the production of truss members for a truss assembly using a linear feed saw apparatus. The method comprises storing a list of truss members to be cut by the linear feed saw apparatus, selecting from the list a first truss member for cutting, the first member having a trailing end. A second truss member from the list is selected for cutting, the second member having a first end that will nest with the trailing end of the first member. The second member is oriented such that its first end nests with the trailing end of the first member. The members are then cut using the linear feed saw. The nesting members can abut across the entire member width, only across a portion of the member width or at a single point. The nested ends of the first and second members may be bevel cuts. The selecting of a second truss member may comprise comparing the angles of the cuts to be made on the trailing end of the first member to the angles of the cuts to be made on the ends of at least two of the members on the list. The selected member may have an angle to be cut which is supplementary to one of the angles of the trailing end of the first member or which is close fitting with an angle on the trailing end of the first member. The selected member is oriented such that the supplementary or close fitting angle of the selected member is adjacent the corresponding supplementary or close fitting angle of the first member. Orienting the selected member may further comprise rotating the member around its longitudinal axis, its lateral axis or both.
    • 4. 发明公开
    • Method and apparatus for pattern matching with active visual feedback
    • 一种通过活性视觉反馈的匹配模式的方法和装置
    • EP0950480A2
    • 1999-10-20
    • EP99107674.6
    • 1999-04-16
    • Gerber Technology, Inc.
    • Williams, Kevin M.Monroe, Jeffrey S.
    • B26D5/00B26F1/38
    • B26D5/005B26D5/00B26D2005/002B26F1/3813B26F1/382B26F3/004Y10T83/0605Y10T83/152Y10T83/155Y10T83/173
    • An apparatus and method for cutting pieces of material from a workpiece (18), such as a web of patterned fabric, which includes irregularities or which is misaligned with respect to a coordinate system of the cutting apparatus. The workpiece is spread on a cutting table (12, 102) where it is cut by a numerically controlled cutter (24, 28, 30) in accord with an electronic marker stored in the cutter controller. The marker is matched to the workpiece and appropriate adjustments are made to the marker before the workpiece is cut. A laser (42), operatively connected to the controller, projects a match target (61) onto the workpiece at a point corresponding to a selected point on the marker. The marker is then adjusted such that the selected point coincides with a desired location on the workpiece. Adjustment is achieved by electronically displacing the match target from a non preferred location to a preferred one. Software in the controller translates this displacement into appropriate adjustments to the marker. The displacement is effected with an electro-magnetic pointing device (46) which coacts with a digitizing grid (44) embedded in the cutting table work surface and operatively connected to the controller.
    • 如图案化织物的幅材,其包括不规则性或所有这些是未对准相对于所述切割装置的坐标系:用于切割材料的片从工件(18)的装置和方法。 工件被散布在其中通过在符合数控切割器(24,28,30)在存储在所述切割器控制装置的电子标记切断与切割台(12,102)。 标记匹配到工件和适当的调整,以标记做出切割工件之前。 激光器(42),可操作地连接到所述控制器,在对应于在标记上的选定点的点突出的匹配目标(61)到所述工件。 然后被调节检查标记做选定点与工件上的所希望的位置相一致。 调节是通过电子方式从非优选位置移位匹配靶优选的一个实现。 软件控制器跨鲈这个位移转换成适当调整标记。 位移并伴随着电磁指示装置(46),其与嵌入在切割台工作台面和可操作地连接到所述控制器的数字化网格(44)共同作用上。