Design of Internal Sealing Structure of Multi-partition Drafting Roller
In order to solve the problems of rust,wear and abnormal operation caused by poor sealing of the cantilever drafting machine for viscose staple fiber,the basic composition of the drafting machine for viscose staple fiber and the internal sealing structure of the traditional drafting roller are introduced,and the reasons of corrosion of the roller core and drafting shaft in production are analyzed.In view of the defects of the original sealing structure,the internal sealing structure of the labyrinth type and multi-partition type drafting roller is proposed,that is,the outer protective cover is added,the epoxy resin mud is applied between the protective cover and the end cover,the sealing ring structure is improved,the outer end of the radial plate is welded with 2 mm thickness 904L super austenitic stainless steel plate,and the oil seal and water seal are added.It is pointed out that the internal sealing structure of the multi-partition drafting roller improves the sealing effect of the drafting roller,effectively prevents the corro-sion of acidic liquid and gas to the inner core of the drafting roller,and prolongs the service life of the drafting roller components.The added parts are simple in structure and easy to process.
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