摘要：针对目前国内超细粉包装过程中粉尘飞扬、效率低、物料浪费严重和包装精度低等问题,提出一种超细粉体清洁化阀口袋包装机设计方案。设计一种单工位双螺杆机构,结合负压抽气、充填口膨胀气囊等辅助机构,实现了超细粉阀口袋充填过程的清洁化;对取袋、上袋、袋传送、袋口封合机构进行设计,并通过三维实体软件进行实体建模,构建了超细粉自动化包装的整体方案,实现了超细粉的自动化包装,提高超细粉包装系统的整体效率。

关键词：超细粉；双螺杆；阀口袋；清洁化

Abstract: Aiming at the current problems of flying dust，low efficiency，serious material waste and low packaging accuracy in the domestic ultra-fine powder packaging process，a design scheme of a ultra-fine powder cleaning valve bag packaging machine was proposed． A single-station twin-screw mechanism was designed，combined with auxiliary mechanisms such as negative pressure extraction and filling mouth inflated gasbag，to achieve the cleaning of the ultra-fine powder valve pocket filling process． At the same time，the bag-removing，bag-feeding，bag-transporting，and bag-sealing mechanisms were designed，and solid modeling was performed through 3D solid software to build an overall solution for ultra-fine powder automated packaging． This design scheme realizes mechanical automation and improves the overall efficiency of the ultra-fine powder packaging system． 

Keywords: ultra-fine powder; twin screw; valve bag; cleaning