旋转钩

The rotating hook is a critical component in sewing head assemblies that rotates in synchronization with the needle to catch the needle thread loop and interlock it with the bobbin thread, forming secure lockstitches. It operates at high rotational speeds with precise timing to ensure consistent stitch formation across various fabric types and sewing conditions.

The rotating hook operates on a rotary motion principle where it rotates in a circular path to catch the needle thread loop as the needle ascends. It contains a hook point that captures the thread loop and carries it around the bobbin case, allowing the bobbin thread to pass through the loop, creating a lockstitch. The timing between needle movement and hook rotation is precisely calibrated to ensure reliable stitch formation.