专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5988629A Control for a sheet stack supporting platform 失效
标题翻译：控制纸张堆栈支撑平台
公开(公告)号：US5988629A
公开(公告)日：1999-11-23
申请号：US720481
申请日：1996-09-30
申请人： Leroy E. Burlew , Michael T. Dobbertin , Henry P. Mitchell , Theophilus C. Wituszynski
发明人： Leroy E. Burlew , Michael T. Dobbertin , Henry P. Mitchell , Theophilus C. Wituszynski
IPC分类号： B65H1/14 , B65H3/12 , B65H3/14 , B65H1/16 , B65H1/18 , B65H7/12
CPC分类号： B65H1/14 , B65H3/128 , B65H2511/20 , B65H2511/514 , B65H2513/40 , B65H2801/21
摘要： A sheet feeder having a platform for supporting a stack of sheets, a feed head assembly for feeding sheets seriatim from the top of a sheet supply stack on the platform, a mechanism for moving the platform relative to the feed head assembly, and a device for controlling operation of the platform moving mechanism. The control device for the platform moving mechanism includes a sensor for detecting marginal edges of sheets in the sheet stack on the platform, and producing a signal indicative of sheet edge detection. Additionally, a sensor is provided for detecting the location of the topmost sheet on the sheet stack on the platform, and producing a signal indicative of such top sheet location detection. A signal is set representative of the top of the sheet stack being in proper operative relation to the feed head assembly, this set signal being based on the signal from the top location sensor for the particular location of the top of the stack when the marginal sheet edge detection signal is first produced. Periodically thereafter, a control signal is produced for actuating the sheet stack supporting platform moving mechanism until the signal indicative of detection of the topmost sheet from the top location sensor is substantially equal to the set signal.
摘要翻译：一种具有用于支撑一叠纸张的平台的送纸器，用于从纸张供应堆叠的顶部在平台上输送纸张的进给头组件，用于相对于进给头组件移动平台的机构，以及用于控制平台移动机构的运行。用于平台移动机构的控制装置包括用于检测平台上的纸张堆叠中的纸张边缘的传感器，并且产生指示纸张边缘检测的信号。此外，提供了一种传感器，用于检测平台上纸张堆叠上的最上面的纸张的位置，并产生指示这种顶纸位置检测的信号。设置代表纸堆叠的顶部处于与进给头组件正确操作关系的信号，该设定信号基于来自顶部位置传感器的针对堆叠顶部的特定位置的信号，当边缘片材首先产生边缘检测信号。此后，周期性地产生控制信号，用于致动纸张堆叠支撑平台移动机构，直到表示从顶部位置传感器检测最上面的纸张的信号基本上等于设定信号。

IPRDB

热门服务

关于我们

友情链接

联系方式