为解决ZJ118和ZJ112卷接机组二次分切轮异物烟支剔除功能存在的漏剔问题，利用CREO参数化设计工具对ZJ112卷接机组异物剔除二次分切轮气路进行优化，在保证配气相位不变以及配气出口在同一直线的前提下，将前排烟支气路改为与后排烟支气路一致的线型通路，并运用FluidSIM-P仿真软件对改进前后的异物剔除气动回路进行测试，以提高异物剔除二次分切轮气路配气的同步性与灵敏度。利用120个异物样本（橡胶条）对改进前后的卷接机组进行异物投放试验，结果表明：剔除含异物烟支的准确率由改进前的93.33%提高到改进后的100%。改进后异物剔除二次分切轮实际应用于ZJ112和ZJ118卷接机组，废品烟支班次报告显示异物烟支数量与实际统计数量一致，表明改进后不存在漏剔现象，有效提高了机组异物剔除功能的可靠性。%To reject defective cigarettes accurately in ZJ118 and ZJ112 cigarette makers, the air circuit in final cut drum for foreign matter rejecting in ZJ112 cigarette maker was optimized with CREO parametrization design tools. On the premise of ensuring air distribution phase unchanged and air distribution outlets in alignment, the air circuit for front row cigarettes was changed into a linear passage similar to that for rear row cigarettes. The air circuits before and after improvement were tested with FluidSIM-P simulation software to promote the synchrony and sensitivity of air distribution in the final cut drum. Rejecting experiments were conducted with 120 foreign matters (rubber strips) containing cigarettes, the results showed that the rejection accuracy increased from 93.33% to 100% after improvement. The improved final cut drum was applied to ZJ112 and ZJ118 cigarette makers, the number of rejected cigarettes containing foreign matter reported per shift agreed with the practical statistical value, it indicated that all cigarettes containing foreign matter were rejected. The reliability of foreign matter rejection was promoted effectively.
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