| 摘要 |
The invention relates to a device for feeding book blocks, books or similar printed products ( 2 ), in step with the working cycle, to a subsequent processing machine. The infeed device comprises a continuous-drive accumulating conveyor ( 3 ); an arrestor ( 5 ), arranged at the downstream end of the continuous-drive accumulating conveyor ( 3 ), for cycled release of individual printed products ( 2 ); and a continuous-drive onward conveyor ( 11 ), which transports the printed products ( 2 ) by means of frictional force, for onward conveying of the separated printed products ( 2 ) to a defined transfer position ( 13 ) from which the printed products ( 2 ) are taken over, in step with the working cycle, by an infeed system ( 17 ) of the subsequent processing machine. According to the invention, the infeed device is characterized by a sensor ( 14 ), arranged in the conveyance region of the onward conveyor ( 11 ), for registering the front edge of each printed product ( 2 ); and by an infeed control device ( 8 ) for evaluating the sensor signal and for triggering the arrestor ( 5 ), wherein the time difference between the remaining processing time (from receipt of the sensor signal to the point in time when the printed product ( 2 ) is taken over by the infeed system ( 17 )) and the theoretical transport time to the transfer position ( 13 ) (given by the conveyance speed and the conveyance distance still to be traveled) is determined; and wherein the point in time for triggering the arrestor ( 5 ) in the subsequent conveyance cycle is correspondingly corrected by the time difference. This leads to the printed products ( 2 ) being taken over by the infeed system ( 17 ) of the subsequent processing machine almost at the point in time when they arrive at the transfer position ( 13 ).
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