| 摘要 |
PURPOSE:To prevent yarn at the top of bobbin from getting loose when the yarn is cut, by forming a bunch winding at the highest position of the bobbin, dropping a ring rail and grasping the bunch winding and a bunch winding- forming part by a bobbin gripping tool. CONSTITUTION:When a machine bed is stopped with completion of full bobbin, the ring rail 7 is slightly raised, a bobbin is restarted, the bunch winding B1 is formed,the ring rail is rapidly dropped, the slant winding B2 is carried out, yarn is wound round the roulette part 4, and the machine bed is stopped. Then, an autodoffer is worked, and the full bobbin B is grasped between the piston 18 and the inner wall face of the bobbin insertion hole 13. When the bobbin B is extracted from the spindle 6, the yarn is kept in a tense state even if the slant winding B2 becomes loose. |
