A METHOD AND A DEVICE FOR GUIDING A WEB

摘要

In a reeling process a paper web is continuously reeled into reels around rotating reeling cores in such a manner that the web (W) is guided into a reel (R) around a reeling core (5) through a reeling nip between a loop of an endless supporting member (1) and the reel (R), at least in some stage the reeling core (5) is transferred in relation to the loop of the supporting member (1) according to the growth of the diameter of the reel (R) in such a manner that the position of said reeling nip (N) moves for­ward on the web-carrying portion of the endless supporting member (1) in the travel direction of said portion. The wrap angle (alpha) of the web (W) at the location of the first guiding roll (2) of the loop of the endless supporting member (1) and at the same time the web tension of the web at the location of the first guiding roll (2) is controlled by means of a web guiding roll (8) preceding the loop in the travel direction of the web (W).