无缝内衣机密度电动机的控制技术

Control technology for density motor used in seamless underwear machines

为解决无缝内衣机密度电动机在控制上的不稳定性,且易导致其织物表面存在横纹,通过分析总结密度电动机的性能特性,提出了一种基于CAN总线的密度电动机控制方案。根据密度电动机控制成圈三角的工艺特性,经过讨论本控制技术的总体实施方式,研究关键的电路设计以及程序算法,制定了密度步进电动机动作特性的协议。同时,为避免因密度电动机长时间工作存在的丢步现象导致织物出现横纹,提出了一种归零侦错方式。测试结果表明,采用此控制技术实现了密度电动机位置控制的同时提高了无缝内衣机密度电动机控制的稳定性,相比带编码器的密度电动机节约了成本,满足了无缝内衣机对密度电动机的控制要求。

Facing the problem that the control of the density motor used in current seamless underwear machines is unstable,this research was carried out to investigate the performance characteristics of the density motor,proposing a density motor control scheme based on CAN bus.According to the processing characteristics of the density motor control stitch cam,the overall implementation of the control technology was expounded.The key circuit design and program algorithm was studied,and the protocol for controlling the action characteristics of the density motor was established.In order to avoid the long-term operation of density motor appearing the horizontal stripes caused by the lost step phenomenon,detecting error mode by zero-return was proposed.The test results indicate that the control technology facilitate the position control of the density motor and improve the stability of the seamless underwear machine density motor control,with cost savings compared to density motors with encoders,meeting the control requirements of the seamless underwear machine for the density motor.