| 摘要 |
<p>The blowing device comprises a blow box (30) which is arranged at the opening nip (22) between the wire and the cylinder and which is provided with at least two nozzles (36; 44, 46) or the like arranged close to the wire or the like. The first nozzle (36) is arranged at the opening nip (22) between the wire and the cylinder, for blowing air away from the gap (34) between the wire and the blowing device. The second nozzle (44, 46) is arranged at a distance from said opening nip, in the wire travel direction. The air jets discharged from the nozzles maintain a negative pressure in the space between the blowing device and the wire. In the blowing device, at a short distance from the opening nip, there is further arranged a throttling means (50) projecting toward the wire, the throttling means dividing the negative pressure space formed between the first nozzle and the second nozzle into an intensified negative pressure region (34') bordering to the location of the opening nip and into a second lower negative pressure region (34', 20').</p> |
