| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem in a conventional slotter for a corrugated fiberboard case-manufacturing machine that it is necessary to coincide the feeding interval of corrugated board sheet with the peripheral length of a rotating slotter knife, that another large-sized slotter is needed in the slotting of the sheet longer than the above peripheral length to have trouble in view of equipment efficiency, that since the sheet feeding interval is unchanged even in the slotting of a short sheet, productivity is not enhanced, that a preparatory operation is necessary to coincide the mounting interval of two slotter knives with a slotting interval, and that the machine is complicated. SOLUTION: Each feed roll shaft, each creaser shaft and each slotter shaft are driven individually, and the slotter knife is driven so that the peripheral speed thereof is asynchronous to that of the feed roll at only the rate needed. Even in the case that the running length of the corrugated sheet is different from that of the slotter knife 81 or 82, necessary position and speed can be secured by the rotation control of the slotter. The mounting interval between both slotter knives 81 and 82 is adjustable. COPYRIGHT: (C)2004,JPO&NCIPI
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