Abstract: A hold-down element for a rotary feeder has a curved elongated member for continuously contacting an article during rotation of a rotary head. The curvature of the hold-down element is selected so that the distance from the elongated member to the rotary head increases from the point of initial contact to the final contact point on the elongated member. The hold-down element preferably maintains contact for at least 20.degree. of rotation of the rotary head, and thus maintains contact with the article for an extended period of time. The hold-down element is attached to a vacuum shaft on the rotary head, and is prevented from rotating relative to the vacuum shaft by a keyway on the hold-down element and a key on the vacuum shaft. The hold-down element, however, is permitted to travel transversely along a longitudinal axis of the vacuum shaft in order to accommodate different shaped articles.

Abstract: A packaging machine has a partition inserter and selecting apparatus suspended above a flow of articles. The partition inserter and selecting apparatus are mounted to an inner frame which can be raised or lowered to adjust the spacing between the partition inserter and selecting apparatus relative to the articles. In this manner, the packaging machine can package articles of different heights. The partition inserter and selecting apparatus are mounted to the inner frame on guide rails which allow a technician to move the partition inserter and selecting apparatus laterally away from the articles and over a maintenance deck so that the technician can easily perform necessary repairs or maintenance. The partition inserter and selecting apparatus are releasably engaged with each other to permit the technician to access more easily all areas of the partition inserter and selecting apparatus.

Abstract: A force sensing assembly measures a magnitude of a force generated at the tabs in a product delivery system. The product delivery system can be one in which a force is produced at the tabs by the weight of the stack, by a paddle pushing an end of the stack, or by another similar type of advancing mechanism. In a preferred embodiment, the force sensing assembly has a pair of tabs connected to a cross-bar which extends across the stack and which is connected to the frame of the feeder through a bell crank at one end and a lever at the other end. The bell crank has one arm connected to the cross-bar and a second arm connected to a load cell. The force at the tabs causes the lever and bell crank to rotate, with the force being transmitted through the bell crank, through a spring, and then to the load cell. The load cell generates a force signal which is supplied to a controller for adjusting the amount of force at the tabs.

Abstract: A partition inserter has a vacuum assembly which pivots out to contact an end partition in a stack, pivots back to remove the partition, and then moves downwardly to release the partition. The positioning of the vacuum assembly is controlled by a set of cams and a cam follower for controlling the horizontal position of the vacuum assembly and a third cam and cam follower for controlling the vertical position of the vacuum assembly. The vacuum assembly has an upper set of cups which move down with the assembly to lower the partition. The upper vacuum cups are also adjustably mounted to the assembly so that the same assembly may be used for partitions of various sizes. When the partition is released from the vacuum cups, the partition is guided downwardly by a pair of conveyors to a set of shooter wheels. The conveyor and shooter wheels are mounted to a set of plates which are adjustably mounted to the frame of the apparatus.

Abstract: A partition feeder has a multi-rack assembly for holding more than one reserve stack of partitions. The partition feeder has a main stack of partitions which is forced against a set of tabs and which has its partitions removed by a selecting apparatus. When the main stack has been reduced down past a certain amount, one of the reserve stacks is automatically moved into alignment with the main stack and the partitions in the reserve stack are added to the main stack. The partition feeder has guide rails that are received in notched sides of the partitions, thereby suspending the partitions on the guide rails. An inner frame, upon which the guide rails are mounted, is adjustably mounted to a middle frame to thereby permit the adjustment of the distance between the guide rails. The middle frame is adjustably mounted to an outer frame to permit the vertical adjustment of the mass feeder. The partition feeder can therefore be easily adjusted for partitions of different sizes.

Abstract: A continuous motion, end loading packaging machine forms article groups of a predetermined number and configuration using a flight type article selector. The packaging machine is flexible in its ability to package articles of different heights and diameters in various product configurations. The packaging machine includes adjustable guide rails to selectively change product infeed lane widths. The machine also phase adjusts the selector flights, and allows for easy selector flight replacement.

Abstract: A method and means for opening a collapsed rectilinear carrier sleeve. As the collapsed sleeve is moved through a packaging machine it is partially opened so that the leading panel extends at an angle to the horizontal. A continuous upward force is then delivered to the leading panel to cause the leading panel to pivot up about its upstream fold line until it reaches the vertical. The collapsed sleeve is partially opened by elevating side flaps connected to an upper panel to cause the upper panel to be elevated. One way of accomplishing this is to cause the upper flaps to ride up over a fixed cam surface while lower flaps connected to a lower panel move under the cam to prevent the lower panel from moving in an upward direction.

Abstract: A packaging machine adapted to meter and load various size groups of articles into receptacles to form a package. Star wheels are used to meter the articles into groups, each star wheel functioning as a single unit in conjunction with an infeed conveyor and a conveyor that feeds the metered groups downstream to a packaging station. Star wheels carrying different numbers of lugs are interchangeable in order to create different size packages on the same machine. The lugs which move the groups of articles and the article receptacles may be relocated as necessary to accommodate different size packages.

Abstract: A beverage container packaging machine which employs a series of pusher plates to move groups of containers into open-ended carrier sleeves. The plates are pivotally attached to two continuous chains which are arranged so as to maintain the plates parallel to the downstream direction of travel of the containers and sleeves. The chains move the plates in a diagonal run toward the loading station wherein the downstream component of movement is at a speed similar to the speed of travel of the containers and sleeves, and the right angle component causes the plates to push the containers into the sleeves.

Abstract: A method and apparatus for inserting partitions into a group of articles is disclosed. The method includes combining articles, such as beverage containers, to form an article group of predetermined configuration, including longitudinal rows of articles. The article group is conveyed toward a divider deposed in the path of travel. The divider, which includes an angled end portion that acts as a cam, separates the article subgroup into article subgroups. Once the article subgroups are transversely separated to a predetermined extent, a partition inserter places a partition between the article subgroups. The two subgroups are then recombined to affix the partition between adjacent articles. The recombined article group, including a partition, is then moved through the packaging machine to the next process step or simultaneously inserted into cartons.

Abstract: A divider panel for separating bottles in a carton. The divider panel is provided with shock absorbing feet so that upon being propelled at high speed into a group of adjacent bottles, the feet distort upwardly upon impact. This prevents the divider from bouncing out of the group as it would if the feet were not provided. Cutouts in the upper edge portions of the divider panel allow the panel blanks to be conveniently delivered to the insertion station.