| 摘要 |
<p>The yarn tensioner sets up the brake force without effect of differences which occur in the yarn itself and in the rollers. This is ensured by rotating both rollers by a single motor with shafts linked by gears, and one roller capable of moving in or out. The pressure of the movable roller is controlled by a spring and a solenoid the excitation of which is determined by load current of the motor.</p> |
