| 摘要 |
<p>A method and a device in the cutting and diagonal cutting of the leader of a paper web (W). The method and the device are applied in a group of drying cylinders provided with single-wire draw (13) in a paper machine or a finishing machine. The drying wire (13) is separated from the paper web (W) by means of a guide roll, guide rolls (14a,14b) or equivalent static airborne means, an open draw (W0) being thereby obtained for the web (W). The cutting and diagonal cutting of the leader of the paper web (W) are carried out on the open draw (W0) of the web (W). After the open draw (W0), the drying wire (13) and the web (W) are brought together on the subsequent leading or drying cylinder (11). It is preferable to employ two guide rolls (14a,14b), whereof the first roll is placed so that the drying wire (13) supports the web (W) up to the location of said guide roll (14a), which is followed by an open draw (W0) of the web. By means of the second guide roll (14b), the drying wire (13) is returned onto the subsequent leading or drying cylinder (11). <IMAGE></p> |
