In terms of working principle, the GY4-1 computerized multi-head embroidery machine is similar to a general household sewing machine. The following main functions must be realized: ①The function of making the needle pierce the embroidery material to form a loop; ②The function of interweaving the bottom thread with the upper thread; ③The function of conveying and tightening the upper thread; ④The function of feeding the embroidery material; ⑤ The function of changing colors of embroidery thread. In addition, it also has some auxiliary functions such as editing patterns (such as merge, split, pin and zoom, etc.), broken thread alarm, automatic thread trimming and monitoring. From the perspective of the structure of the mechanical motion system, the machine is composed of four major mechanisms: piercing mechanism, arranging mechanism, feeding mechanism and hooking mechanism. Among them, the barbed cloth mechanism and the hook thread mechanism are generally considered in the head part.

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