Cloth feeding driving motor of sewing machine

The invention provides a cloth feeding driving motor of a sewing machine. The cloth feeding driving motor starts reciprocating rotation in a static state in the mode that the cloth feeding driving motor rotates by 22.5 +/-2.5 degrees in one direction, then swings by 45 +/-5 degrees back and forth, and then performs reciprocating rotation at the angle of 45 +/-5 degrees in a circulating mode to implement sewing with the needle pitch of 5 mm. Measurement can be carried out under the situation that the sewing machine is not powered on, actual measurement data are obtained, accurate control over the stitch length by the sewing machine is improved through operation of the cloth feeding driving motor under the control of a sewing machine control system, and therefore the sewing quality of the sewing machine is improved. 本申请一种缝纫机的送布驱动电机特征在于，所述送布驱动电机在静止状态下开始往复转动是先向一个方向转动22.5°±2.5°，再往回摆动45°±5°，再以45°±5°角度循环往复进行往复转动实施5mm针距的缝制，并且可以在缝纫机非上电的情境下进行测量，取得实际测量数据，在缝纫机控制系统的控制下通过送布驱动电机的运转提高了缝纫机对针距的精准控制，从而提高了缝纫机的缝制品质。