The complete mechanical system of the computerized pattern machine includes the top and bottom shafts, main shaft, needle bar, picking mechanism, cutting mechanism, hooking mechanism, feeding mechanism, and material pressing mechanism, with approximately 600-700 components. The entire mechanical system is complex in structure and highly precise, demanding a high level of assembly quality.

The working principle of the computerized embroidery machine is described as follows: The crank and connecting rod mechanism installed on the upper shaft transfers the fabric to the needle, which pierces the fabric downward, threading the top thread through. The cutting mechanism, in conjunction with the control system, completes the automatic cutting function. The pressure mechanism ensures the friction force of the feeding, while the feeding mechanism moves the fabric. As the needle rises from the low point, the top thread forms a loop due to obstruction. During the upward movement, the hooking mechanism engages the loop, separating it front and back, creating a woven knot with the bottom thread. The picking rod pulls out the top thread, slowly ascending to a high position before beginning a slow descent. At this point, the top thread is loose, and the bottom thread is taut, dragging the woven knot downward until it intertwines with the fabric, completing the stitching.