B - Operations – Transporting – 42 – C
Patent
B - Operations, Transporting
42
C
B42C 1/12 (2006.01) B42B 4/00 (2006.01)
Patent
CA 2147223
Abstract of the Invention A system and apparatus for accumulating and stitching collations at high speed comprise an accumulation device situated at an upstream end of a deck in which sheets are stacked to form a collation. The accumulation device includes a stacking area, a transport for conveying the sheets into the stacking area, and first gating structure for stopping the sheets in the stacking area to form the collation. A containment device that is adjacent to a downstream end of the accumulation device includes second gating structure for stopping the collation for other than lead edge stitching. A stitcher is adjacent the first gating structure for stitching the collation when a lead edge of the collation is at either the first gating structure or the second gating structure. A pusher transport moves the collation from the accumulation device to the containment device and transports the collation from the containment device. A controller controls the pusher transport wherein the pushers square the collation at substantially the moment an end of collation sheet is conveyed against the first gating structure. The controller is coupled to an encoder for tracking and controlling the position of said pushers. The system also includes the capability for correcting the position of said pushers after a power loss.
Macrae & Co.
Pitney Bowes Inc.
LandOfFree
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