NOZZLE OF A DEVICE FOR CONTACT-FREE TREATMENT OF A RUNNING FIBER WEB

摘要

The invention relates to a nozzle of a device for contact-free treatment of arunning web, comprising a main frame part (11) forming an outer part of thenozzle (10), which two side chambers (14, 15) on each longitudinal side of thenozzle (10), each side chamber (14, 15) comprising at least one a nozzleopening (17A, 17B, 16A, 16B) for the air blow towards the fiber web, an airchannel (20), through which the air is lead to the side chambers (14, 15),locatedat least partially between the side chambers (14, 15), which air channel(20) is U-shaped and comprises side walls with at least one opening (19, 18)on each side wall (14, 15) for leading the air into the side chambers (14,15). AU-shaped inner part (13) is located inside the main frame part (11) andbetweeninner upper surfaces of the main frame part (11) and outer upper surfaceof the U-shaped inner part (13) at least one adjustment means (12) comprisinga screw (21) and bushings (22) attached by a welding at each end tocorresponding upper surface is located at least partially to open or to closetheat least one opening (18, 19).