| 摘要 |
The utility model relates to a threading web material device used in a dryer section of a fiber web material production machine. In the dryer section, a drying net (18) is alternately born to be single network traction by dryers (16) and turning rollers (17). A pocket space (20) formed by a turning roller (17), two dryers (16) and the drying net (18) is loaded with vacuum. Furthermore, when the web material is threaded, strengthening vacuum is produced through a blowing airflow (24) in an importing wedge (26) formed by the drying net (18) and the turning roller (17). Associated with the importing wedge (26) and the blowing airflow (24), relative to the turning roller (17), a limited channel (27) exists, and the edge of the limiter channel, pointing to the direction of the machine and relative to the turning roller (17), is sealed. |
