| 摘要 |
PURPOSE:To accurately control the number of sheets without damaging said sheets by inserting a separating head into a gap provided by blowing air jet against the border of bundles of sheets at which a mark attached to the side of a piles of sheets per each defined number of sheets, is photoelectrically detected. CONSTITUTION:When a head H on the same table as a video camera V is advanced until its end comes close to the side of a pile of sheets S, its height becomes the same as the height of a border between the top bundle of sheets and the second bundle from the top, of the pile of sheets. After the end of the head is brought close to the pile of sheets, a control unit C makes air jet out from a jet port N at a pressure of approximately 2kg/cm<2> to blow against the side of the pile of sheets, which, in turn, is parted up and down at the border between the top and second bundles of sheets providing a gap. The head is further advanced to increase the gap and a pusher is inserted into the increased gap to push and send the top bundle of sheets of the piles of sheets S leftward. Then, the control unit C drives a table lifter T to elevate the piles of sheets S by the amount of one bundle of sheets, completing one cycle of operation and, thereby, obtaining the accurate number of sheets without damaging the sheets.
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