| 摘要 |
<p>This invention relates to a dynamic laser cutting apparatus for cutting successively various configurations on a moving feed stock or other moving web or successive sheets. The apparatus includes a control device, which monitors the relative location of the moving feed stock, and controls a scanner to direct a laser beam to cut successively various configurations on the desired relative location of the feed stock. One of the configurations that may be cut with the present invention is sets of successive sheets with index tabs in different locations, from a high-speed moving feed stock, thereby eliminating the need for collating the individual index tab sheets into a set. In order to cut consistently, the control device also monitors the speed of the moving feed stock, and based on the speed of the feed stock, adjusts the power level of the laser to cut consistently on the moving feed stock. Accordingly, even during startups and shut downs, when the feed stock is accelerating and decelerating, respectively, the present invention produces consistent cuts, thereby minimizing scrap. Additionally, the power level of the laser may be adjusted for various cutting operations, such as micro-perfing and scoring. The present invention may also be used to cut a multilayer feed stock, via scoring and micro-perfing, to produce variety of products, such as labels, business cards and the like. Furthermore, as the laser cuts along the edges of the feed stock, the edges are substantially beveled to minimize the "paper cuts", which may be caused by sharp edges. Also, an input and output ventilation system is provided to remove the vapors and/or dust that may be generated by the laser cutting on the feed stock.</p> |
