| 摘要 |
<p>Control unit is electric/pressure operated; it is between a cylinder and the yarn guide unit, which is operated by hydraulic cylinders to move it up and down. A distributor in the feed circuit of the ydraulic cylinder is switched into at least 2 reversing positions by elements which are rigidly connected to a system with its own law of movement. A device operates the elements and is connected to move with the yarn guide unit Elements operate the hydraulic cylinder by pressure, and control it.</p> |
