公开(公告)号：US4494588A

公开(公告)日：1985-01-22

申请号：US487584

申请日：1983-04-22

申请人： Larry R. Berry ,  Anton S. Richert

发明人： Larry R. Berry ,  Anton S. Richert

IPC分类号： B23Q15/10 ,  B27L5/02 ,  B27L5/04

CPC分类号： B23Q15/10 ,  B27L5/025

摘要： A lathe for cutting a spiral strip of veneer from the surface of a log includes motor-driven mechanisms for adjusting the knife blade pitch angle and edge height, and for moving a pressure head relative to the knife to adjust the vertical gap and horizontal gap between the knife edge and the roller bar, and provides sensors for determining the actual positions of movable elements of the lathe, thus enabling computer-controlled adjustment of the movable elements of the lathe during lathe operation. A knife clamp of the lathe includes a plurality of separate clamp segments for pressing against different portions of a knife bar to hold it firmly, resisting deformation and rocking of the knife bar. Fluid-pressure-biased bearings eliminate looseness between relatively movable parts of the lathe, reducing the amount of variation of thickness in veneer produced using the lathe. Veneer thickness is controlled by monitoring cumulative movement of the lathe spindles and the main feed carriage.

摘要翻译： 用于从木材表面切割螺旋胶合板的车床包括用于调节刀片俯仰角和边缘高度的电动机构，以及用于相对于刀移动压头以调节垂直间隙和水平间隙 刀刃和滚子杆，并且提供用于确定车床的可移动元件的实际位置的传感器，从而在车床操作期间能够对车床的可移动元件进行计算机控制的调节。 车床的刀夹包括多个单独的夹紧段，用于压紧刀杆的不同部分以牢固地保持其，抵抗刀杆的变形和摆动。 流体压力偏置的轴承消除了车床的相对可移动部件之间的松动，减少了使用车床生产的单板的厚度变化量。 通过监测车床主轴和主进给托架的累积运动来控制单板厚度。

公开(公告)号：US4379476A

公开(公告)日：1983-04-12

申请号：US267898

申请日：1981-05-28

申请人： Larry R. Berry

发明人： Larry R. Berry

IPC分类号： B27L5/02 ,  B27B1/00

CPC分类号： B27L5/022

摘要： A veneer lathe charger system utilizing automated equipment for scanning and positioning a log to obtain optimum production of veneer therefrom. The charger has mechanical features specially designed to provide a degree of accuracy in the physical manipulation of the log comparable to the degree of accuracy provided by the automated scanning and positioning equipment. These include log manipulation features emphasizing engagement of the log only at its opposing ends during and after scanning and especially during transfer from one manipulating device to another, avoidance of end engagement by two different manipulating devices in identical end areas of the log, minimal movement of log positioning devices by the employment of dual scanning steps and features for retaining the accuracy of the manipulation devices despite wear thereof. The charger further includes features for improving its rate of production by reducing time delays between successive log manipulating steps.

公开(公告)号：US4086496A

公开(公告)日：1978-04-25

申请号：US778860

申请日：1977-03-18

申请人： Larry R. Berry

发明人： Larry R. Berry

IPC分类号： B27B31/06 ,  G01B11/04 ,  G01N21/30

CPC分类号： G01B11/046 ,  B27B31/06

摘要： A method for optically measuring an elongate timber cant, regardless of whether in upright of inverted orientation, said cant having top and bottom substantially flat, mutually parallel surfaces separated by longitudinal wanes and having a generally trapezoidal cross section, and thereby locating the narrowest flat surface of the cant and the longitudinal boundaries thereof. The method is accomplished by effecting relative transverse movement between the cant and a crossed light pattern such that the longitudinal boundaries of the flat surfaces momentarily interrupt and restore a plurality of light beams forming the crossed light pattern, detecting four beam interruption and restoration events, and recording the amount of relative transverse movement between each of the four detected events. The resultant measurement data on the cant is used to space and orient a pair of edge trimming saws and to orient the cant in preparation for its advancement to the saws. Broken beam scanning is combined with intensity variation of the plurality of light beams at a frequency higher than any fluctuations occuring in the ambient light surrounding the measurement site, thereby providing cant measurement data which is substantially independent of ambient light fluctuations.

摘要翻译： 一种用于光学测量细长木材倾斜物的方法，无论是倒立的立柱，所述悬臂具有顶部和底部基本上平坦的，相互平行的由纵向叶片分隔的表面，并且具有大致梯形的横截面，从而定位最窄的平坦表面 的斜面和纵向边界。 该方法通过实现倾斜和交叉光图案之间的相对横向移动来实现，使得平坦表面的纵向边界瞬时中断并恢复形成交叉光图案的多个光束，检测四个光束中断和恢复事件，以及 记录四个检测到的事件中的每一个之间的相对横向移动量。 所得到的倾斜测量数据用于定位一对边缘修剪锯并且使倾斜定向以准备其前进到锯。 断线扫描与多个光束的强度变化相结合，频率高于在测量部位周围的环境光中发生的任何波动，从而提供基本上与环境光波动无关的测量数据。