发明名称 DETECTING METHOD FOR STICKING DEFECT OF MAGNETIC TAPE
摘要 PURPOSE:To form an in-line inspecting stage to detect the sticking defect of a magnetic tape, by winding a matter to be stuck and attached with a magnetic tape around a cylinder and then detecting optically the float-up at the tip of the matter to be stuck to discharge it. CONSTITUTION:A matter 11 to be stuck and attached with a magnetic tape 10 is carried on a line and pressed by a press-sticking roller 1. The matter 11 is then fed into a bent gap formed by a cylinder 2 having a certain curvature and a cover 3. In this case, the matter 11 shifts with close adhesion to the curvature of the cylinder 2 by rollers 1 and 5 and the cylinder 2. The curvature of the cylinder 2 is selected properly, and as a result, the magnetic tape which is adhered incompletely is forcibly torn off. Thus the tape 10 floats up toward the tangent line of the cylinder curvature in accordance with the degree of stiffness of the tape 10. The tip part 10a of the floated tape 10 is detected by a photoelectric tube 4. Therefore, if a magnetic tape having incomplete adhesion is detected, a defect signal is delivered. Then the defective tape is ejected by an ejector.
申请公布号 JPS58109839(A) 申请公布日期 1983.06.30
申请号 JP19810208829 申请日期 1981.12.23
申请人 TOPPAN INSATSU KK 发明人 HAYASHIBARA TOSHIAKI
分类号 G01N21/84;G11B5/84;G11B23/20 主分类号 G01N21/84
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