| 摘要 |
PURPOSE:To spin yarn in a highly reduced pressure state without deteriorating and damaging the yarn at the yarn outlet part at the bottom of a spinning chimney, by attaching a columnar stopper to the bottom part of the spinning chimney, making a narrow channel in which the yarn can pass along the axial line and setting pressure control chambers opening to the narrow channel. CONSTITUTION:The bottom part of the spinning chimney 6 is provided with the hollow cylindrical member 16 having the narrow channel 25 which can pass the yarn Y and is set along the axial line of an inner peripheral face and the columnar stopper 19 is inserted into the chimney. The pressure control chambers 20 and 21 are set along the outer periphery surface of the columnar stopper 19 in the circumferential direction, the narrow channel 25 is opened, the hole 29 which is connected to the pressure control chambers 20 and 21 and to the top of the columnar stopper 19 is bored and the contractions 22 and 23 of areas are set in the middle of the hole.
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