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 quality of assembly.

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 face 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 face thread forms a loop due to obstruction. During the upward movement, the hooking mechanism engages the loop, separating it front and back, creating a knot with the底线. The pick-up rod pulls out the face thread, slowly ascending to a high position before beginning a gradual descent. At this point, the face thread is loose, and the底线 is taut, dragging the knot downward until it intertwines within the fabric, completing the stitching.