Paper sheet processing apparatus

A paper sheet processing apparatus comprising:

• a take-out/transfer unit which takes out input paper sheets one by one onto a transfer path and transfers the paper sheets;
• a paper sheet inspection unit which inspects the paper sheets that are transferred by the take-out/transfer unit via the transfer path;
• a sorting/stacking unit which selectively sorts and stacks the paper sheets, which are transferred via the transfer path, into a plurality of sorting sections, which are juxtaposed along a direction of transfer of the paper sheets, on the basis of an inspection result in the paper sheet inspection unit;
• a plurality of bundling units which bundle the paper sheets, which are sorted and stacked into the plurality of sorting sections, in units of a predetermined number of paper sheets;
• a control unit that communicates and controls the take-out/transfer unit, paper sheet inspection unit, sorting/stacking unit, and plurality of bundling units;
• a plurality of temporary hold units which receive and temporarily hold bundles that are formed by the plurality of bundling units;
• a first transfer conveyor which is provided to extend under the plurality of temporary hold units in a direction of arrangement of the plurality of temporary hold units, and conveys the bundle that is released from each of the temporary hold units and placed on the first transfer conveyor;
• a second transfer conveyor which is disposed on a downstream side of the first transfer conveyor in a direction of conveyance of the first transfer conveyor in succession with the first transfer conveyor, and further conveys the bundle, which is transferred from the first transfer conveyor, at a speed of conveyance that is lower than a speed of conveyance of the bundle by the first transfer conveyor;
• a memory unit which stores a pre-measured actual time until the bundle that is released from the temporary hold unit, which is located on a most downstream side in the direction of conveyance, is transferred onto the second transfer conveyor;
• a sensor which detects passage of the bundle which is conveyed by the second transfer conveyor;
• a length detection unit which detects a length of the bundle in the direction of conveyance on the basis of a time during which the sensor detects the passage of the bundle;
• and
• a bundle inspection unit which inspects a bundled state of the bundle on the basis of a detection result by the length detection unit,
• wherein the control unit controls bundle transfer speed in which a distance from a position of reception of the bundle from the temporary hold unit, which is located on the most downstream side, to a terminal end of the first transfer conveyor and a length of the second transfer conveyor in a direction of conveyance are set such that a time until the bundle, which is transferred from the first transfer conveyor onto the second transfer conveyor, is completely passed through the second transfer conveyor is shorter than a prestored time in the memory unit.