Sizing defect detection system and sizing defect detection method
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United States of America Patent
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May 16, 2017
Grant Date -
May 5, 2016
app pub date -
May 23, 2014
filing date -
Jun 24, 2013
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Abstract
A light emission part projects a laser light toward an edge portion of a formation. The laser light extends in a direction intersecting a conveyance direction of a forming belt. A light receiving part is opposed to the light emission part and located on the opposite side of the formation. The laser light passes through an area above an upper surface of the formation at least partially and is partially blocked by rising of the edge portion of the formation. A control device determines occurrence of the glue-joint failure on the basis of whether the quantity of light received by the light receiving part is reduced by at least a predetermined value or a predetermined rate, and provides or gives a visual display or a warning of the occurrence of glue-joint failure.
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