发明名称 |
Device for detecting defects in single faced corrugated fiberboards |
摘要 |
A device for detecting any defects in single faced corrugated fiberboard while it is running. A light is irradiated to the corrugated surface of the fiberboard and the striped image is scanned by an image pick-up unit and the picture signal is converted to binary-coded signal to discriminate the number of stripes or corrugations. The number is counted by a counter and compared with a normal number by a microcoputer. If there is too large a difference between them, the scanned part is judged as defective. This device can detect any defects in a running web at a sufficiently high speed to follow the line speed of a corrugating machine.
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申请公布号 |
US4737846(A) |
申请公布日期 |
1988.04.12 |
申请号 |
US19870054923 |
申请日期 |
1987.05.28 |
申请人 |
RENGO CO., LTD. |
发明人 |
TOKUNO, MASATERU;SAWADA, TETSUYA;MORI, YASUHARU;YOSHIMOTO, IKUO |
分类号 |
B31F1/20;B31F1/28;G01B11/30;G01N21/89;(IPC1-7):H04N7/18 |
主分类号 |
B31F1/20 |
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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