| 摘要 |
<p>The device has multiple nozzle openings and adhesive supply system (15), where adhesive is delivered by a portion of the system. The openings are operated by a high pressure needle valve or high pressure piston valve with a needle or piston (19). A protective region (40) is arranged in a rear region of the needle or piston. The protective region surrounds the needle or the piston in a sealing manner, and the protective region is applied with a protective medium (SM) e.g. liquid and air. Ring-shaped sealing elements (41, 42) surround the needle or the piston. An independent claim is also included for a method for discharging an adhesive bead- or adhesive sheet.</p> |
