Taking the instance of a high speed industrial flat sewing machine

the motion theory of its feeding mechanism is analyzed.And the kinematic analysis are carried out according to the closedloop vector method

the implicit kinematic equations of the feeding dog stand is obtained

.The 3D model of feeding mechanism is built and the motion of the feeding mechanism is simulated in ADAMS

the motion trajectory of feeding dog stand is obtained.The stitch length of the simulation is compared to the pre-set value certify that they are in accordance.The research lays the foundation for improving the performance of the feeding mechanism.