Folding machines |
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| 申请号 | EP84303989 | 申请日 | 1984-06-13 | 公开(公告)号 | EP0132286A3 | 公开(公告)日 | 1987-08-12 |
| 申请人 | BUSM Co. Limited; USM Corporation; | 发明人 | Yardley, Robert; Wolloff, Frank Harry; Cameron, Ewen Rothnie; | ||||
| 摘要 | A folding machine has workpiece sensing means including an emitter (E7) by which an "outside" corner in the workpiece edge approaching the operating locality of the machine can be sensed, such sensing causing the feed length by which the workpiece is advanced step-by-step through the operating locality to be reduced; this conventionally causes pleating in the folded over edge portion. In addition, delay means (Fig. 3) is provided by which, after the emitter (E7) has been re-covered by the workpiece, the feed length reduction continues for a given number of further feed steps (in casu 0 to 4 further steps). The delay means may be mechanically operated or, in a computer-controlled machine, be achieved by software. | ||||||
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| 说明书全文 | |||||||
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