Patent ID: 8870112

Claim:
A set changing device of a slitter-winder, comprising: a rear carrier roll, and a front carrier roll arranged one after the other, and forming a winding-up section and arranged to receive partial webs cut with a splitter and to wind said received partial webs to form wound fiber web rolls of the partial webs cut with the slitter-winder, wherein the rear carrier roll is closer to said splitter than the front carrier roll is; a lowering device which extends downwardly from a highest point of the front carrier roll, the lowering device being in roll receiving relation to the front carrier roll; a pusher device mounted for pushing wound fiber web rolls of partial webs cut with the slitter-winder from the winding-up section; a cutting blade mounted liftable to a cutting position adjacent to the rear carrier roll; wherein the pusher device further comprises: a body operable to push the wound fiber web rolls at least partly out of the winding-up section; a rear row of press rolls near the slitter and a front row of press rolls further from the slitter, said rear and front press rolls mounted to the body and arranged to simultaneously engage the wound fiber web rolls; and wherein at least the front row of press rolls is mounted with respect to the body of the pusher device to change position during an interval when the pusher device is operated to push wound fiber web rolls at least partly out of the winding-up section; wherein the front row of press rolls on the pusher device is arranged to fold a partial web of said wound fiber rolls of partial webs over the cutting blade so the web is cut; and wherein the front row of press rolls on the pusher device is arranged to move forward, wherein a tail formed by the web can be pressed fast to a wound fiber web roll before the wound fiber web roll passes over the highest point of the front carrier roll.