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, comprising approximately 600-700 parts. The entire mechanical system is complex in structure and highly precise, with stringent requirements for assembly quality.

The working principle of the computerized pattern machine is described as follows: The crank and connecting rod mechanism installed on the upper shaft transmits the fabric to the needle. The needle pierces through the fabric from below, threading the weft. 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 weft forms a loop due to obstruction. During the ascent, the hooking mechanism engages the loop, separating it to create a knot with the bottom thread. The pick-up rod pulls the weft upwards, reaching a high position before slowly descending. At this point, the weft is loose, and the bottom thread is tensioned, dragging the knot downwards into the fabric, completing the stitch pattern.