| 摘要 |
An initial threading mechanism provides for simple but effective threading of the elongated hollow shaft of a vacuum spinning apparatus. Connected textile fibers are fed into the first end of the elongated hollow shaft, into the passageway which extends through the shaft from its first end to a second end. A vacuum tube is mounted for rotation about an axis parallel to and spaced from the axis of rotation of the hollow shaft. When a first open end of the vacuum tube is pivoted into an operative position adjacent the second end of the shaft, and in alignment with the shaft passageway, the vacuum tube connects up to a source of vacuum and draws a segment of the connected fibers completely through the passageway. The shaft includes perforations which normally are in operative communication with a vacuum source applied to the circumferential exterior of the shaft, however during rotation of the vacuum tube into its operative position an electrical switch is actuated causing a solenoid operated valve to cut off the application of vacuum to the circumferential exterior of the shaft. Once a segment of connected fibers has been drawn through the shaft passageway the vacuum tube is pivoted back to its original position, and the segment of fibers is connected to a take-up mechanism.
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