Abstract: A device for affixing an adhesive label to a package comprises a piston and cylinder. The cylinder comprises two connections arranged on a wall of the cylinder spaced apart from each other, which are alternatively connected to either a positive or a negative pressure media source. The connections control the movement of the piston inside the cylinder so that the piston can move between a first dead center position and a second dead center position thereby causing a stamp to affix a label to the package. Shortly before reaching the first dead center, the piston blocks the first connection with its cylindrical wall, thereby stopping any increase in negative pressure between the piston and the first dead end position.

Abstract: A device for attaching adhesive labels to packaged goods has a compressed air source and a vacuum source that are alternatingly connected by program-controlled two way valves to air inlet openings of a pneumatic cylinder. A main piston is connected to the upper end of a hollow piston rod and is guided between an upper and a lower dead center position in the pneumatic cylinder. The hollow piston rod has a lateral air opening within the cylinder. A suction holder is connected to a lower end of the hollow rod positioned external to the pneumatic cylinder. The suction holder has a suction channel axially connectable to the hollow piston rod and closeable partially by a check valve. A label transfer unit has a label transfer position in which a respective label is positioned at a small distance below the suction holder when in its upper position. A control device lowers the suction holder into the lower position for receiving the label.