The presser foot drive mechanism determines the presser time when embroidering, thus affecting the embroidery quality. For the key problem of presser foot parking, according to the displacement trajectory of the needle bar, the target displacement trajectory point of the presser foot in one motion cycle is selected, and the optimization objective function is established by combining with the mathematical model of presser foot motion. Combined with the improved differential evolutionary algorithm for optimization, 10 optimization parameters are obtained, and the results show that, compared with the pre-optimization, the stability of the presser foot is effectively improved, and the presser foot parking time is increased by 1.01 times, which meets the technological requirements of the embroidery machine presser foot parking of 100°, and the mechanisms will not collide.
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