Abstract:
Methods and apparatus for singulating articles in a singulating conveyor having an elimination, or separation, conveyor to strip articles not in single file and recirculate or redirect them. The elimination conveyor has a pass-through conveyor belt portion that passes articles received single file from an infeed conveyor off the downstream end of the singulator and a laterally adjacent second conveyor belt portion with rollers that rotate to divert articles not in single file toward or off the side of the elimination conveyor. A recirculation conveyor receives articles diverted off the side of the elimination conveyor and returns them to the infeed conveyor. For refeeding diverted articles to the singulating conveyor downstream, a conveyor receiving articles from the downstream end of the second conveyor belt provides a path parallel to the pass-through articles and feeds them onto a downstream registration conveyor to merge back into the flow.
Abstract:
A conveyor having a flighted belt and providing a gapless end-off or end-on transfer of articles. The conveyor belt includes segmented flights at spaced intervals along its length. Each segmented flight includes slots dividing the flight into laterally spaced segments, or dogs. A transfer platform allows for a smooth transfer of articles onto or off the end of the belt. Fingers on the transfer platform separated by gaps extend to distal finger tips that are positioned close to the conveying surface of the belt at an end of the conveyor. The transfer platform is laterally aligned with the gaps positioned to coincide with the flight segments to permit them to pass cleanly through as the belt articulates about a sprocket set at the end of a carryway. Optional article-advancing rollers in the conveyor belt between consecutive flights propel articles forward along the belt to a forward flight.
Abstract:
Methods and apparatus for singulating articles in a singulating conveyor having an elimination, or separation, conveyor to strip articles not in single file and recirculate or redirect them. The elimination conveyor has a pass-through conveyor belt portion that passes articles received single file from an infeed conveyor off the downstream end of the singulator and a laterally adjacent second conveyor belt portion with rollers that rotate to divert articles not in single file toward or off the side of the elimination conveyor. A recirculation conveyor receives articles diverted off the side of the elimination conveyor and returns them to the infeed conveyor. For refeeding diverted articles to the singulating conveyor downstream, a conveyor receiving articles from the downstream end of the second conveyor belt provides a path parallel to the pass-through articles and feeds them onto a downstream registration conveyor to merge back into the flow.
Abstract:
An alignment conveyor for aligning articles along a side of the conveyor without changing their orientation. The conveyor includes a conveyor belt having article-supporting rollers rotating in a direction oblique to the direction of belt travel as the belt advances. The rollers direct the articles to a side of the belt. A sideguard, formed by a series of plates or an array of rotatable elements, advances with the belt in the direction of belt travel and receives and aligns the articles without causing them to rotate on contact.
Abstract:
A spacing conveyor having article-accelerating rollers and selectively retractable stops to control the gaps between consecutive conveyed packages. A sensor measures the length of a package being fed onto the spacing conveyor. A controller selectively actuates one or more actuators positioned along the length of the conveyor to move selected stops advancing with the conveyor from a retracted position to a blocking position to receive packages a variety of sizes and to control the gaps between consecutive packages.
Abstract:
A conveyor having a flighted belt and providing a gapless end-off or end-on transfer of articles (82). The conveyor belt includes segmented flights (66, 66') at spaced intervals along its length. Each segmented flight (66, 66') includes slots dividing the flight (66, 66') into laterally spaced segments, or dogs. A transfer platform (48') allows for a smooth transfer of articles (82) onto or off the end of the belt. Fingers on the transfer platform (48') separated by gaps extend to distal finger tips that are positioned close to the conveying surface of the belt at an end of the conveyor. The transfer platform (48') is laterally aligned with the gaps positioned to coincide with the flight segments to permit them to pass cleanly through as the belt articulates about a sprocket (14, 115) set at the end of a carryway. Optional article-advancing rollers (80) in the conveyor belt between consecutive flights (66) propel articles (82) forward along the belt to a forward flight.
Abstract:
A conveyor (10) using a roller belt (12) with rollers (42) arranged to rotate on oblique axes (44) to urge articles toward a side guide (54) . The conveyor includes an oblique-roller belt (12) supported on a carryway (38) . Rollers (42) extend above an outer conveying surface of the belt without contacting the carryway. Each roller rotates on an axis (44) oblique to the direction of belt travel and interesects the side guide (54) downstream of the roller. A retractable stop (60) is movable to and from a blocking position along the carryway. In the blocking position, the stop blocks the conveyed articles from advancing in the direction of belt travel . The rollers underlying the blocked articles rotate as the belt runs by contact with the articles. The rotating rollers provide a force to the blocked articles directed toward the side guide (54) to push the articles against the side guide or other articles as they accumulate upstream of the stop .
Abstract:
A conveyor having a retractable stop providing a nonsliding contact surface to the leading faces of conveyed articles to prevent damage to the faces of the articles. One version of such a stop has a contact surface defined by the peripheries of rollers that rotate on the accumulated articles as the stop moves from a blocking position accumulating articles on the conveyor to a retracted position releasing accumulated articles to advance downstream along the conveyor.
Abstract:
A conveyor having a conveyor belt with wall segments that pivot between a retracted position below the conveying surface of the belt and an extended position above the conveying surface. When extended, the wall segments form a wall along the length of a portion of the belt to prevent conveyed articles from moving laterally past. The retractable wall segments are cam- or spring-actuated. Diverting conveyors using the retractable wall segments in an oblique-roller conveyor belt are useful as sorters or switches.
Abstract:
A sorting switch (220) for diverting articles (22) from one or more infeed conveyors (24) to two or more outfeed conveyors (26, 27). A pre-alignment conveyor (30) receives articles from one or more infeed conveyors and selectively diverts individual articles into two or more lateral regions for delivery to an alignment conveyor (28) downstream. The alignment conveyor (28) more precisely aligns the articles (22) within each of the regions for delivery to outfeed conveyors (26, 27) at the downstream end of the alignment conveyor (28). The alignment and pre-alignment conveyors are realized as belt conveyors with rollers (52) arranged to rotate universally or on axes in specific orientations. In some versions, a belt's rollers roll on bearing surfaces whenever the belt is advancing. In other versions, rollers are selectively actuated by moving bearing surfaces. In yet other versions, rollers (52) are not contacted by bearing surfaces at all.