The complete mechanical system of the computerized pattern machine includes the upper and lower shafts, main shaft, needle bar, threading 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 level of assembly quality.

The working principle of the computer jacquard machine is described as follows: The crank and connecting rod mechanism installed on the upper shaft delivers fabric to the needle. The needle pierces the fabric downwards, threading the weft through. The cutting mechanism, in coordination with the control system, completes the automatic cutting function. The pressure mechanism ensures the frictional force of the feeding, while the feeding mechanism moves the fabric. As the needle rises from its lowest point, the weft forms a loop due to resistance. During the ascent, the hooking mechanism catches the loop, separating it into front and back. It forms a tangled knot with the底线 (ground weft). The pick-up rod pulls the weft upwards, reaching a high position and then slowly descending. At this point, the weft is relaxed, and the底线 is tensioned, dragging the tangled knot downwards until it intertwines in the fabric, completing the stitch.