Apparatus and method for weeding a multilayer sheet comprising a support liner and at least one adhesive film coupled with the liner

A weeding apparatus for weeding of a multilayer sheet comprising:

• a support liner and at least one adhesive film coupled with the liner, the film comprising a plurality of graphic elements peripherally encircled by cuts and a weed among said graphic elements, the apparatus comprising:
• a sheet support plane defining a sheet feeding direction (X);
• a fine weeding device adapted to work on said sheet support plane to individually remove parts of the weed delimited by respective closed cut boundaries;
• a rough weeding device adapted to remove in a single passage according to a rough weeding direction a unitary main part of the weed;
• and
• control means adapted to acquire, receive, or store information on the shape and distribution on said sheet of said weed parts delimited by closed cut boundaries, and to control the operation of said fine weeding device as a function of said information,
• wherein the apparatus further comprising weed analysis means and cutting means for analyzing the shape and distribution of said graphic elements, said analysis and cutting means being adapted to transmit said information to said control means, and
• wherein said analysis and cutting means are adapted to map and execute weeding assisting cuts that cut the same weed intersecting with one or more edges of said graphic elements.