烟草科技

为解决PROTOS M5卷接机组（以下简称M5机组）中烟支分离轮故障率高、维修难度大等问题，基于分离轮的工作原理分析了故障原因并提出了2点优化措施。故障原因为设备运行时烟支分离轮中的圆柱凸轮载荷较大并容易出现磨损现象，进而导致导杆与滑块上直线轴承的间隙加大而出现滑块松动现象；优化措施一是将滑块和分烟块的数量从8增加至12，通过减少单个滑块和分烟块的总质量（降幅约为24%）来降低圆柱凸轮的载荷；优化措施二是利用傅里叶函数重新设计凸轮的工作曲线，通过降低滑块的速度极值和加速度极值来降低圆柱凸轮的载荷。以“芙蓉王（硬）”牌卷烟为对象进行测试，结果表明：对M5机组中的分离轮进行结构优化后，在为期1年的统计周期内，分离轮的故障次数由32次降低至0，维修时长减少48 h。该方法可为提高卷烟生产效率提供技术支持。

In order to reduce the failure rate and maintenance time of cigarette separating drum in PROTOS M5 filter cigarette maker, the failure cause was analyzed and two optimization measures were proposed. It was found that the failures happened when the slide block was in a loosening state due to the wearing of the cylindrical cam in the cigarette separating drum and the increase of the clearance between the guide rod and linear bearing on the slide block. The first optimization measure is to increase the number of slide blocks and cigarette separating blocks both from 8 to 12 to decrease the total mass of a single slide block and a cigarette separation block by about 24% to reduce the load on cylindrical cam. The second optimization measure is to redesign the working curve of the cam using Fourier functions to minimize the extreme values of speed and acceleration of slide block so that the load on cylindrical cam can be reduced. The optimized cigarette separating drum in PROTOS M5 filter cigarette maker were tested on “Furongwang(hard)” brand cigarettes for one year and the results showed that the failure times of the cigarette separating drum decreased from 32 to 0 and the maintenance time was reduced by 48 hours. The optimization design provides support for improving cigarette production efficiency.