Apparatus for inspecting sheet materials and conveying device used therefor

摘要

The sheet material inspection apparatus has a pitch detection section for detecting pitches between sheet materials on a conveying path and a control section which effects so that the sheet material is inserted from a predetermined position of a groove of a rotary body (impeller) by adjusting rotating speed of the rotary body or by using auxiliary conveying path even if a pitch deviation is produced. The sheet material conveying device for conveying sheet materials has a conveying unit which includes pairs of rollers disposed away a predetermined distance from each other, a belt stretched between the pairs of rollers and wound on the rollers through only a predetermined angle; and a guide member disposed between the pairs of rollers so that its upper surface is located more downward by a predetermined spacing than a conveying surface of the belt. Sheet materials are supported between the belt and the guide member and conveyed by driving the belt, which enables high-speed, and less damage, in conveying.