The complete mechanical assembly of the computer pattern machine includes the top and bottom shafts, main shaft, needle bar, pick-up mechanism, cutting mechanism, hooking mechanism, feeding mechanism, and material pressing mechanism, with approximately 600 to 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 the fabric to the needle, which pierces the fabric downwards and threads the weft 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 its lowest point, the weft forms a loop due to resistance. During the ascent, the hooking mechanism engages the loop, separating it into front and back, creating a cross-line knot with the bottom thread. The pick-up rod extracts the weft and slowly rises to a higher position, then begins to descend slowly. At this point, the weft is loose and the bottom thread is tight, pulling the cross-line knot downwards until it weaves into the fabric, completing the stitch.