The entire mechanical system of a computerized embroidery machine includes the upper and lower shafts, main shaft, needle bar, thread picking mechanism, cutting mechanism, hooking mechanism, feeding mechanism, and material pressing mechanism, totaling approximately 600-700 parts. The entire mechanical system is complex in structure and highly precise, demanding a high standard 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 downwards to pass the thread through. The cutting mechanism, in coordination with the control system, completes the automatic cutting function. The pressure mechanism ensures the friction force for feeding, while the feeding mechanism moves the fabric. As the needle rises from the low point, the thread forms a loop due to obstruction. During the upward movement, the hooking mechanism catches the loop, separating it into two parts, creating a cross-thread knot with the bottom thread. The pick-up rod pulls the thread upwards, reaching a high position and then slowly descending. At this point, the thread is loose and the bottom thread is tensioned, dragging the cross-thread knot downwards until it intertwines with the fabric, completing the stitching pattern.