The spinning cup (rotor) joint is one of the core components of the rotor spinning machine, which directly affects the quality of the yarn (such as evenness and hairiness) and the operation of the equipment. It mainly includes components such as the spinning cup body, high-speed bearings, sealing rings, positioning pins, etc.
Cleaning and lubrication
Wipe the surface of the spinning cup shaft with a dust-free cloth dipped in alcohol to remove oil stains and fiber residues; Apply a small amount of high-speed bearing grease (not too much to avoid absorbing fibers) to the inner ring of the new joint bearing to ensure even lubrication of the bearing.
Installation method
Align the new joint with the keyway of the spinning cup shaft, gently push it in until the bottom of the joint fits the shaft shoulder. During installation, it is necessary to keep it level to avoid tilting and uneven bearing force on the shaft. If encountering resistance, check if the keyway is aligned and do not forcefully press it.
Installation of sealing ring and peripheral components
When installing the sealing ring, ensure that it is fully aligned with the groove of the spinning cup seat, without distortion or gaps (to prevent vacuum leakage from affecting spinning quality). Then install the spinning cup cover and combing roller in sequence, and use a torque wrench to tighten the screws according to the equipment manual (such as the combing roller screw torque is usually 2-3N · m), to avoid over tightening and causing component deformation.
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