A rotary carton feeder includes a planetary drive having two sun rings with angular phase, cam surfaces on each ring about a common axis. Planetary members rotate about the common axis with a number of said planet members in operative engagement with one of the cams and another number of planet members in operative engagement with a second one of said sun rings. Spindles are selectively combined with selected planet members to selectively accommodate handling variably sized cartons of 1, 2, 3 or 4 count. Suction cups on spindle ends traverse an enclosed path having four cusps. Variations are disclosed.

A station for picking up and delivering shaped sheets that define box-like bodies of different types includes a magazine for the sheets and at least one handling element for at least one sheet at a time. The magazine accommodates a plurality of mutually aligned and juxtaposed sheets and the at least one handling element includes an end bracket provided with at least one grip element and at least one assembly with arms which are articulated with respect to the bracket and are independently movable with respect to a fixed frame. The bracket can move between a first configuration of alignment with the end sheet accommodated in the magazine, in the condition where the at least one grip element is in contact with the end sheet, and a second configuration of alignment with a conveyance line of the sheets which corresponds to the delivery region.

A station for picking up and delivering shaped sheets that define box-like bodies of different types includes a magazine for the sheets and at least one handling element for at least one sheet at a time.

The magazine accommodates a plurality of mutually aligned and juxtaposed sheets and the at least one handling element includes an end bracket provided with at least one grip element and at least one assembly with arms which are articulated with respect to the bracket and are independently movable with respect to a fixed frame. The bracket can move between a first configuration of alignment with the end sheet accommodated in the magazine, in the condition where the at least one grip element is in contact with the end sheet, and a second configuration of alignment with a conveyance line of the sheets which corresponds to the delivery region.

Embodiments include a carton feeding system for feeding a plurality of cartons to a conveyor track, comprising a plurality of feeding devices, where each feeding device comprises a pick-up head with a plurality of vacuum cups, and an erecting finger pivotally suspended at the pick-up head, where the pick-up head has a pick-up position (P1) in which the holding plane of the pick-up head is positioned parallel to the folded carton blank that is to be picked up, and an insertion position (P2) in which the erecting finger is pivoted with respect to the holding plane of the pick-up head in such a way that the carton is opened, and where at least two cartons are inserted simultaneously into the conveyor track.