摘要
为解决YB618型包装机烟条横向输出装置传动链过长、各传动部件误差耦合叠加导致的烟条输送卡阻频次高、烟条表面压痕及条内烟包损伤等问题,设计一种采用电子凸轮代替传统机械凸轮的独立伺服驱动装置。该装置由交流伺服电机、同步带传动链、伺服控制器和绝对值编码器等组成,控制系统采用位置环-速度环-电流环全闭环控制模式,通过分析对比三次多项式、修正正弦函数及NURBS曲线3种电子凸轮曲线运动轨迹,实现末端凸耳带的间歇旋转运动。以曲靖卷烟厂使用的2台ZB48超高速包装机组为对象进行测试,结果表明,NURBS样条曲线所构造的凸轮轨迹位置、速度与加速度变化更加平稳连续,满足电子凸轮对高速间歇运动控制精准和响应速度快的要求,改进后烟条横向输出装置故障停机率减少7.4次/班,设备效率提升4.25个百分点,有效提高烟条外观质量,降低原辅材料消耗。该方法可为提高卷接包机组的柔性化制造水平提供技术支持。
In order to solve the problems of high frequency of cigarette carton conveying jams caused by excessive transmission chains,superposition of errors in the coupling of various transmission components,etc.in the transverse output device of the YB618 packaging machine,an independent servo drive device using electronic cams instead of traditional mechanical cams is designed.The device consists of an AC servo motor,a synchronous belt drive chain,a servo controller,an absolute value encoder,etc.The control system adopts a position ring-speed ring-current loop full closed-loop control mode.By analyzing and comparing the cubic polynomial,modified sinusoidal function and the three electronic cam curve motion trajectories of the NURBS curve realize the intermittent rotating movement of the end lug band.Taking two ZB48 ultra-high-speed packaging units used in Qujing Cigarette Factory as objects,the results showed that the cam trajectory position,speed and acceleration changed more smoothly and continuously,meeting the requirements of electronic cams for high-speed intermittent motion control.With the requirements of precision and fast response speed,the improved cigarette carton lateral output device has reduced the failure and shutdown rate of 7.4 times per shift,and the equipment efficiency has increased by 4.25 percentage points,effectively improving the appearance quality of cigarette cartons and reducing the consumption of raw and auxiliary materials.This method can provide technical support for improving the flexible manufacturing level of the roll-joining and packaging unit.
出处
《科技创新与应用》
2025年第7期105-109,共5页
Technology Innovation and Application
