发明名称 Sensor for label transporting equipment
摘要 A band carrying a series of labels separated by gaps is transported step by step past a location at which individual labels are removed and automatically applied to boxes, etc. Along the path of the band, at a scanning station, a backing plate is provided on the empty side of the band, while the side with the labels is scanned by a device which consists of a feeler roller eccentrically mounted on an angle lever. As the roller drops into the gap between labels, the lever pivots, carrying along with it a bar whose opposite end normally interrupts the flow of air in an air cell. The rotation frees the air cell causing generation of a signal designed to stop the transport of the band. To allow for the relatively long response time of the cell, the bar is rotatably mounted on the lever and continues its motion due to inertia after the lever itself has stopped and even after it has reversed direction as the roller moves onto the next label. A spring then pushes the bar back to its rest position wherein one end overlaps the lever while the other end blocks the air passage through the cell. This allows airflow in the cell for a sufficiently long time even with high band transport speeds and small gaps between labels.
申请公布号 US4547249(A) 申请公布日期 1985.10.15
申请号 US19840593044 申请日期 1984.03.23
申请人 DUDZIK, JOACHIM;DUDZIK, WINFRIED 发明人 DUDZIK, JOACHIM;DUDZIK, WINFRIED
分类号 B65C9/18;B65C9/42;(IPC1-7):B65C9/18 主分类号 B65C9/18
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