| 摘要 |
<p>For singulation, and creating controlled gaps between successive articles a plurality of belts are mounted adjacent to each other with a slide chute between each pair of adjacent belts, articles moving from an infeed belt and passing from one belt to another through the chute therebetween. A plurality of sensors are positioned such that there is a single control sensor for at least selected ones of the belts, each control sensor sensing article position on a corresponding belt. Controls are provided for operating each belt in response to a corresponding control sensor, an operative state of a downstream belt and/or the difference between the desired throughput and the detected throughput. The controls are also operative to initiate stopping of a belt if a detected trailing-edge to leading-edge gap is smaller than the desired minimum gap.</p> |
