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1. 发明授权

US3707999A Moving shadow light indexing means 失效
标题翻译：移动阴影指示手段
公开(公告)号：US3707999A
公开(公告)日：1973-01-02
申请号：US3707999D
申请日：1971-01-25
申请人： COATS J
发明人： COATS J
IPC分类号： B27B31/06 , B27B27/10
CPC分类号： B27B31/06 , Y10T83/727 , Y10T83/828
摘要： The present invention comprises a rotating drum assembly mounted on a framework above a conveyor assembly disposed transversely to the drum, a cross conveyor in the conveyor assembly operable to drivingly feed lumber into a saw assembly. The rotating drum assembly is provided with a multiplicity of groups of wires suitably fastened to the opposite terminal end plates of the drum and a light projecting source suitably mounted in the drum being operable to project light through unit groups of wires passing under the light projecting source in response to rotation of the drum and to project shadow impages of the wires upon lumber traveling on the conveyor therebeneath. The drum assembly also includes a parallax guide suitably fixed inside the rotating drum assembly operable to planarly orient unit groups of wires on the drum as they are caused to pass over the guide in response to rotation of the drum. The wires of each of the unit groups are parallelly spaced apart on the drum a distance geometrically coincident with the spacing of parallel mounted saw blades in the saw assembly. Each unit group of wires on the drum are spaced apart a distance geometrically coincident with the spacing of lumber guide bars on the conveyor assembly. Adjusting means is provided on the drum assembly to interrupt the synchronous drive of the drum operable to selectively align shadow impages on a selected piece of lumber being carried by a respective guide bar on the conveyor. The adjusting means is electrically interconnected to the saw assembly to selectively align saw blades coincident with the shadow line images on the lumber. The conveyor assembly comprises an endless conveyor disposed about a table framework and including a multiplicity of equally spaced guide bars disposed transversely to the direction of travel of the conveyor. Means are provided on the table to urge lumber on the table against respective guide bars. A cross conveyor is distally disposed near one of the terminal ends of the conveyor being operable to drivingly feed lumber into the saw assembly. Driving rollers in the cross conveyor are disposed at an angle between a pair of opposing side frame members. In this manner lumber tends to be drivingly fed into the saw assembly and urged against one of the side frame members. Lumber is drivingly fed into the saw assembly from a preselected fixed datum reference guide formed by the side frame member. Hence, the relationship between the datum reference guide and the preselected position of saws in the saw assembly is the same as the relationship of projected shadow images on the lumber and its position against the respective guide bar on the conveyor assembly. Means are provided on the conveyor table to selectively support lumber above the cross conveyor and to planarly drop the lumber flatly onto the cross conveyor. Electrically interconnecting control means are also provided to selectively lower individual saw blades into engagement with respective pieces of lumber.
摘要翻译：本发明包括安装在横向于滚筒设置的传送组件上方的框架上的旋转滚筒组件，该输送机组件中的横向输送机可操作以将木材驱动地输送到锯组件中。旋转鼓组件设置有多个适当地紧固到滚筒的相对末端板上的线组，并且适于安装在滚筒中的光投射源可操作以将光投射到穿过光投射源下方的单元组线响应于滚筒的旋转并且在木材在其旁边的输送机上行进时投射电线的阴影冲击。滚筒组件还包括适当地固定在旋转滚筒组件内的视差引导件，其可操作以在鼓上响应于滚筒的旋转而使引导件上的导线的单元组平面地定向。每个单元组的导线在滚筒上平行地间隔开，其几何尺寸与锯组件中平行安装的锯片的间距一致。鼓上的每个单元组的电线间隔开与几何上与输送机组件上的木材导杆的间隔重合的距离。调节装置设置在鼓组件上以中断滚筒的同步驱动，可操作以选择性地对准由输送机上的相应导杆承载的所选择的木材片上的阴影。调节装置电连接到锯组件以选择性地对准与木材上的阴影线图像一致的锯片。

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