公开(公告)号：US5564253A

公开(公告)日：1996-10-15

申请号：US552099

申请日：1995-11-02

Applicant: Takashi Nakaya

Inventor： Takashi Nakaya

IPC: B23Q15/02 ,  B27L5/02 ,  B27B1/00

CPC classification number: B23Q15/02 ,  B27L5/027 ,  G05B2219/37385 ,  G05B2219/45037 ,  G05B2219/49319

Abstract: The method of the present invention realizes accurate control of the feed rate in a veneer lathe under a centerless condition and improves the productivity of the veneer lathe. After spindles (8a) are moved away and disengaged from the axial ends of a log (11), that is, under the centerless condition, the method of the invention controls the feed rate of a knife carriage (9) based on the current rotating speed of the log (11), which is measured by a speed measuring device (7) engaged with the periphery of the log (11). When a difference between the current rotating speed of the log (11) measured by the speed measuring device (7) and a theoretical rotating speed of the log (11) driven by a peripheral drive system (2) exceeds a preset level, the method of the present invention stops the feeding operation of knife carriage (9) and thereby the veneer peeling operation of the veneer lathe. This structure effectively prevents the lowered productivity of veneers and keeps the veneers free from obvious or conspicuous traces of engagement with the peripheral drive system or cracks due to the insufficient synchronism of the veneer lathe with a subsequent veneer processing apparatus.

Abstract translation: 本发明的方法实现了在无心状态下在单板车床中的进给速度的精确控制，并提高了单板车床的生产率。 在主轴（8a）离开原木（11）的轴向端部之后，即在无心状态下，本发明的方法基于当前的旋转来控制刀架（9）的进给速度 通过与原木（11）的周边啮合的速度测量装置（7）测量的对数（11）的速度。 当由速度测量装置（7）测量的对数（11）的当前旋转速度与由外围驱动系统（2）驱动的对数（11）的理论转速之间的差超过预设水平时，该方法 本发明停止了刀架（9）的进给操作，从而停止了单板车床的单板剥离操作。 这种结构有效地防止了单板的生产率降低，并且由于单板车床与随后的单板加工设备的不均匀性而使单板没有明显或明显的与周边驱动系统接合的痕迹或裂缝。