Labelling machine

A labelling machine for applying labels to respective articles, said machine comprising:

• at least one unit to receive and retain an article to be labeled;
• said unit comprising a receiving member, which extends along a vertical axis (F), is axially slidable between a raised position and a lowered position, is adapted to support a relative article, and comprises a lateral wall rotatable about said axis (F) and adapted to carry a relative label on its outer surface;
• a conveying device to transfer said unit along a given path (P) transversal to said axis (F);
• feeding means for feeding at least a label to said unit;
• actuating means for rotating said lateral wall about said axis (F) so as to wrap a fed label around said lateral wall when said receiving member is arranged in the raised position;
• a cam and tappet device to axially displace said receiving member between said lowered and raised positions;
• said cam and tappet device comprising a cam device located in fixed position along said path (P), and a cam follower axially fixed with respect to said receiving member and engaging said cam device,
• wherein said cam device is adjustable between a first configuration, in which it defines a first track (R) for the cam follower, to cause the displacement of said receiving member between the lowered and raised position during movement of said unit along said path (P), and a second configuration, in which it defines a second track (Q) for the cam follower, to maintain said receiving member in said lowered position during movement of said unit along said path (P).