| 摘要 |
A device for feeding single sheets to a packaging, labelling or packeting machine, comprising a support structure provided with a table for positioning a stack of sheets to be fed, at least one pair of rotary drums arranged rigid with a drive shaft, and a plurality of operating elements associated with said pair of drums and comprising gripper elements positioned on said drums for gripping said sheets and sucker elements for withdrawing a single sheet from the bottom of said stack and transporting it towards said gripper elements, in which the drive shaft is divided into two parts which can be connected together in an intermediate region in a relative position rotated through any angle, a first linkage system comprising levers and cams being operationally associated with the operating elements of a first drum and a second similar linkage system being associated with the operating elements of a second drum, these being arranged on each of the two drive shaft parts.
|
