Locking device for thread adjuster of knitting machine

The utility model discloses a knitting machine thread adjuster locking device which comprises a base, a vertical rod and a second sleeve, a first sleeve is welded to the center of the upper surface ofthe base, the vertical rod is inserted into the first sleeve, a gear ring is welded to the bottom end of the vertical rod, and a servo motor is fixed to the base through a bolt. A gear disc is weldedto an output shaft of the servo motor, and the gear disc is connected with the gear ring gear in a meshed mode. According to the locking device for the thread adjustor of the knitting machine, the gear disc is driven by the servo motor to rotate in the rotation of the vertical rod, and the gear disc drives the vertical rod to rotate through the gear ring, so that in the rotation mode, when the vertical rod needs to be fixed, the servo motor is turned off, the gear disc and the gear ring are clamped, and the vertical rod is limited; therefore, full-automatic fixing of rotation and locking of the vertical rod is achieve