发明名称 |
DISPOSITIVO PARA CORTAR SEGMENTOS DE UMA SECAO DE MATERIAL POR MEIO DE CORTES TRANSVERSAIS,DE ACORDO COM MARCAS DE IMPRESSAO EXISTENTES NA SECAO DE MATERIAL |
摘要 |
<p>Apparatus for severing sections from a web by transverse severing cuts at locations related to printed marks on the web. The apparatus includes a rotary cutter and pair of feed rollers, a differential transmission by which the feed rollers are operatively connected to a common drive motor for driving the rotary cutter and the feed rolls. A servomotor is provided for imparting a correcting rotation to the transmission. A mark detector for detecting the printed marks, a sensor for detecting the position of the rotary cutter, and a controller for controlling the servomotor in dependence on the deviation of the spacing of the printed marks from the predetermined web section length are also provided. The servomotor is a stepping motor which receives stepping pulses in a number which represents the difference between the theoretical length of each web section and the actual distance between the printed marks.</p> |
申请公布号 |
BR8605932(A) |
申请公布日期 |
1987.09.15 |
申请号 |
BR19868605932 |
申请日期 |
1986.12.03 |
申请人 |
WINDMOLLER & HOLSCHER |
发明人 |
RICHARD FELDKAMPER;HERBERT FISCHER;KARL-HEINRICH FELD |
分类号 |
B26D5/30;B26D5/32;B26D5/34;D06H7/02;(IPC1-7):B26D1/36 |
主分类号 |
B26D5/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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