PNEUMATIC LABELING CYLINDER WITH RESTRICTOR

摘要

The invention relates to a device for attaching adhesive labels to packaged goods by means of a cylinder. A piston (2) is displaced within said cylinder by introducing pressurized air with a negative or positive pressure into the cylinder at the upper and lower side of the piston via inlets (3, 4). Said cylinder is closed off at the inlet side by a pneumatic damper unit (14). Th e movement of the piston (2) is transmitted to a plunger (6) which attaches th e adhesive labels to the packaged goods. The aim of the invention is to improv e the dynamic properties of such a device. To this end, the first inlet (3) is mounted on the cylinder (1) in such a position that it can be closed by the wall of the piston (2) in such a manner that the build-up of the negative pressure above the piston is disrupted shortly before or when the piston is in the first dead center position.