专利名称：Method and apparatus for separating
sheets from the bottom of a stack
发明人：Smithe, Eliot S.,Wagner, Stephen M.申请号：EP96303072.1申请日：19960501公开号：EP0757010A1公开日：19970205
专利附图：
摘要：A stack of sheets or blanks for feeding one by one from the bottom of thestack by a feeding mechanism is supported for high speed feeding to subsequentstations. A feed cylinder (10) rotatably supported beneath the leading edge of the stack
includes a suction device (20). An intermediate portion of the blank leading edge (33) isdrawn by the suction device (20) downwardly toward an opening in the periphery of thefeed cylinder (10). Continued rotation of the feed cylinder (10) further bends the blank.For blanks of large size and having a leading edge with an irregular contour the blankleading edge intermediate portion (33) extends forwardly from edge lateral portions.Positioned in spaced relation along the interior of the feed cylinder are a plurality of airmanifolds (48) having outlets directed at selected angles upon the lateral portions of theblank leading edge. The manifolds (48) are connected to a source of pressurized airwhich is directed in a sweeping motion upon the blank leading edge lateral portions uponrotation of the feed cylinder (10). The pressurized air flow sequentially bends the blankleading edge lateral portions downwardly away from the stack as the feed cylinder (10)rotates to move the compressed air outlets into closer proximity to the edge lateralportions. A rotating sweep of compressed air downwardly bends the blank lateral edgeportions to positively control the movement of the blank to separate completely fromthe stack before the blank is removed to assure jam-free feeding at high speed.
申请人：F.L. Smithe Machine Company, Inc.
地址：899 Old Route 220 North Duncansville, Pennsylvania 16635 US
国籍：US
代理机构：Thomas, Roger Tamlyn
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