摘  要：针对工业套结机的工作特点，从工业套结机的机械结构入手研究其工作原理，通过建立工业打结机的送料机构和控制步进电机之间的数学模型，分析总结出缝制花样与步进电机运动角度之间的转换关系。
关键词：工业套结机;机械结构;数学模型
Abstract:  The thesis is base on the national science and technology support project name by “the research and development of efficient sewing equipment servo control system”. Through the lockstitch sewing machine working characteristics and the lockstitch sewing machine mechanical structure, the paper made a research on its working principle, and established the lockstitch sewing machine mathematical model between the feeding mechanism and the control step motor mathematical, analysed and summarized the conversion relations between the sewing pattern and step motor angle.
Key words:  lockstitch sewing machine; mechanical structure; mathematical model