The entire mechanical system of the computer pattern machine includes the upper and lower shafts, main shaft, needle bar, thread picking mechanism, cutting mechanism, hooking mechanism, feeding mechanism, and material pressing mechanism, with 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 transmits the fabric to the needle, which pierces the fabric downward, threading the weft through. The cutting mechanism works with the control system to perform the automatic cutting function. The pressure mechanism ensures the friction force of feeding, while the feeding mechanism moves the fabric. As the needle rises from the low point, the weft forms a loop due to obstruction. During the rise, the hooking mechanism catches the loop, separating it front and back, forming an interlaced knot with the底线. The picking rod pulls out the weft, slowly ascending to a high position and then begins to descend slowly. At this point, the weft is loose, and the底线 is tight, dragging the interlaced knot downward until the knot is woven into the fabric, completing the stitch.