Method and device for forming package bodies which are open on one side using an oscillating gripper

Abstract

Described and illustrated is a device for at least partially unfolding package sleeves, having a magazine comprising a stack formed from package sleeves, wherein the package sleeves of the stack are folded flat around at least two folding edges extending in the longitudinal direction of the package sleeves and wherein a gripper is provided for gripping a side of the package sleeves facing away from the stack and for moving, in particular pulling, the package sleeves along a withdrawal transport path with the folding edges into grooves of at least one receptacle of a moulding station and wherein the grooves are spaced so that the folding edges of the package sleeves are spaced apart further in the magazine than in the grooves. In order to further prevent operational malfunctions and allow a more reliable and largely malfunction-free production of packaging bodies which are open on one side from package sleeves which are open on both sides, it is provided that a drive is assigned to the gripper and/or the grooves for moving the package sleeve section gripped by the gripper first along the withdrawal transport path across a groove plane which connects the grooves, then back against the withdrawal transport path across the groove plane, and then again along the withdrawal transport path across the groove plane.