目的 针对传统白酒酒瓶压盖机自动化程度低、同步控制精度不足、故障排查困难等问题,设计一种基于可编程控制器（PLC）的压盖机自动控制系统。以PLC为控制核心,实现压盖过程的自动控制与闭环调节,利用NX-MCD建立压盖机三维虚拟仿真模型作为虚拟调试支持工具,用于控制逻辑验证和参数优化。通过检测压盖后酒瓶高度实现压盖时间的自动闭环调节。方法 以西门子S7-1500 PLC为控制核心,搭配KTP1200触摸屏实现人机交互;以现有压盖设备为参照,在NX-MCD软件中构建虚拟仿真模型,配置机电与运动属性。同时,利用PLCSIM Advanced与TIA Portal实现PLC与仿真模型的通信。系统采用传送带电机驱动送瓶、气缸执行压盖动作、激光位移传感器闭环调节压盖时间的核心机制,实现压盖高度的闭环调节。结果 通过虚拟仿真验证,仿真模型与PLC控制程序成功通信,压盖后酒瓶高度偏差不大于±0.2 mm,连续仿真运行2 h无故障。结论 通过构建压盖机虚拟仿真模型进行虚拟调试,为包装机械的控制系统设计提供参考。系统具有提升压盖精度和生产效率的潜力,为白酒制造领域的智能化升级提供了技术参考。
Abstract
To address the problems of low automation level, insufficient synchronous control accuracy, and difficult fault diagnosis in traditional liquor bottle capping machines, the work aims to design an automatic capping machine control system based on a programmable logic controller (PLC). With the PLC as the control core, automatic control and closed-loop regulation of the capping process are realized, and a three-dimensional virtual simulation model of the capping machine is established in NX MCD as a virtual commissioning support tool for control logic verification and parameter optimization. The automatic closed-loop regulation of capping time is achieved by measuring the bottle height after capping. With the Siemens S7-1500 PLC as the control core and the KTP1200 touch panel for human-machine interaction, a virtual simulation model was constructed in NX MCD with reference to the existing capping equipment, in which the electromechanical and kinematic properties were configured. The communication between the PLC and the simulation model was implemented via PLCSIM Advanced and TIA Portal. The system adopted a core mechanism in which a conveyor motor drived bottle feeding, a pneumatic cylinder performed the capping action, and a laser displacement sensor enabled closed-loop regulation of capping time, thereby achieving closed-loop control of capping height. Virtual simulation verification showed that the simulation model communicated successfully with the PLC control program, the height deviation of bottles after capping was no greater than ±0.2 mm, and continuous simulation ran for 2 hours without failure. Through virtual commissioning based on the constructed virtual simulation model of the capping machine, this work provides a reference for the control system design of packaging machinery. The system has the potential to improve capping accuracy and production efficiency, offering technical reference for the intelligent upgrading of the liquor-making industry.
关键词
压盖机 /
PLC /
虚拟调试 /
NX MCD
Key words
capping machine /
PLC /
virtual commissioning /
NX MCD
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基金
茅台学院高层次人才启动项目（mygccrc[2022]117）; 贵州省高等学校本科教学内容和课程体系改革项目（GZJG2024454）; 贵州省线下一流课程《可编程控制器原理与应用》（2024JKXX0139）; 茅台学院校级金课建设项目（myjk2024004）; 茅台学院2025年酒产业研究院专项课题（MTXYJCY(2025)002）
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