Murata Kikai Kabushiki Kaisha

Atsushi Yamamoto

Tomoaki Takahashi

Masaki Oka

It is an object of the present invention to provide a spinning device that detects early that fibers F have been accumulated in an air exhausting spaceto prevent a defect (weak yarn) in a spun yarn. A spinning device in accordance with the present invention includes a pneumatic spinning nozzlea whirling current generating chamberin which fibers are twisted using a whirling air current generated by the pneumatic spinning nozzle, an air exhausting spacethat is in communication with the whirling current generating chambera negative pressure source that sucks air from the air exhausting spaceand a pressure sensorthat detects a pressure in the air exhausting spaceWhen the pressure detected by the pressure sensorduring a spinning operation performed by the pneumatic spinning nozzlerises to at least a predetermined value, the unit controllerperforms control such that the spinning operation is stopped. The unit controllerfurther lights an alarm lamp

Spinning device and method for detecting fiber accumulated state

An automatic yarn winder wherein a yarn is taken up from a yarn supply bobbin and wound in a package and defects of the yarn is detected and the detected defect in the yarn is cut out and removed. The trailing cut end of the wound yarn and the leading end of the cut yarn are joined comprising yarn take-up device, stopping device for stopping yarn take-up when the number of detections becomes higher than a pre-fixed number for a fixed length of yarn being wound and taking up device for taking up the yarn from the yarn supply bobbin for a predetermined time after such stopping and joining the leading end of the remaining yarn on the yarn supply bobbin to the trailing end of the yarn on its package and re-starting taking up.

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Uji, Japan

Atsushi Yamamoto