目的 针对超高速卷烟包装机组相位轮振动诱发烟包划痕、折痕缺陷及设备运行稳定性不足等工程问题,以相位轮轮齿结构为研究载体,明晰其动力学演化规律与振动抑制机理,为提升烟包外观成型质量、保障机组高速稳定运行提供设计理论支撑。方法 构建0°、45°、80°三组差异化相位角构型,采用聚乳酸乙酯定义等效力学参数;依托模态叠加法结合有限元数值仿真,完成结构模态解析与宽频振动传递特性求解;搭建实物测试平台,通过辊间距尺寸检测与商标纸成型外观观测,验证仿真模型的有效性。结果 相位轮固有频率随相位偏置角度提升呈显著上升趋势,80°仿真优选构型一阶固有频率达1 559.7 Hz,较0°基准结构提升29.1%;0~1 600 Hz整机工作频段平均振动传递率较基准模型降低25%;实物辊间距实测区间为53.10~53.16 mm,全部满足装配公差规范,高速工况下无显著商标折痕产生。结论 相位偏置角度可有效调控相位轮动力学性能与振动传递行为;80°相位构型能够削弱振动对烟包成型的负面影响,可为卷烟包装相位轮齿形结构选型、外观缺陷抑制及机组稳定运行提供理论依据与工程实践参考。
Abstract
The work aims to use the phase wheel gear structure as the research carrier to clarify its dynamic evolution law and vibration suppression mechanism, so as to provide design theoretical support for improving the appearance quality of cigarette packs and ensuring high-speed stable operation of the unit, and address engineering issues such as scratches and creases on cigarette packs caused by phase wheel vibration in ultra high speed cigarette packaging units, as well as insufficient operational stability of the equipment. Three sets of differentiated phase angle configurations at 0°, 45°, and 80° were constructed, and equivalent mechanical parameters were defined using polylactic acid ethyl ester. Based on the modal superposition method, and combined with finite element numerical simulation, the structural modal analysis and wideband vibration transmission characteristics were solved. A physical testing platform was built to verify the effectiveness of the simulation model through the detection of roller spacing dimensions and observation of the appearance of trademark paper forming. The natural frequency of the phase wheel showed a significant upward trend with the increase of the phase bias angle. The first-order natural frequency of the 80° simulated optimal configuration reached 1 559.7 Hz, which was 29.1% higher than the 0° reference structure; The average vibration transmission rate of the whole machine operating frequency ranged from 0 to 1 600 Hz was reduced by 25% compared with the benchmark model; The actual measurement range of the physical roller spacing was 53.10-53.16 mm, all of which met the assembly tolerance specifications, and there were no significant trademark creases under high-speed working conditions. In conclusion, the phase offset angle can effectively regulate the dynamic performance and vibration transmission behavior of the phase wheel; the 80-phase configuration can mitigate the negative impact of vibration on cigarette packaging formation, providing a theoretical basis and practical reference for the optimal selection of phase wheel tooth profiles in cigarette packaging, the suppression of surface defects, and the stable operation of production lines.
关键词
卷烟包装 /
模态分析 /
动力学特性 /
包装机械相位轮
Key words
cigarette packaging /
modal analysis /
dynamic characteristics /
packaging machinery phase wheel
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