<p>The machine (1) has carriage (9) that is moved along the suction channel (7) on a guide track. The carriage is provided with air guide element (10) having an air delivery element (11) and a suction opening (12). The suction channel and the air transfer element are formed so that the air guide element is acted upon by negative pressure and suction is produced at the suction opening. The suction opening is provided facing towards the surface (8) and arranged between the drafting unit (2) and the surface.</p>
