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1、毕业设计(论文)颗粒包装机的总体结构设计学号:09130180姓名:严密专业:机械工程及自动化系别:机械与电气工程系指导教师:李连进教授二〇一三年六月装配图细节摘要颗粒包装机一般适用于食品、医药、茶叶、化工、等产品中松散状、无粘性、细小的颗粒物品的小剂量自动包装,主要由包装材料输送机构、成型机构、封口机构、送料机构、切断机构、机架等组成,具有操作简单、生产量大、适用范围广等特点。本设计进行了颗粒包装机的设计方案论证、包装原理分析、机械结构设计和强度计算等,设计的颗粒包装机主要由供料料斗、计量供料、包装
2、薄膜供给、成型、纵封、横封、定量供料器、切断、电器加热等组成,其工作原理是薄膜卷装在可调节轴向距离的轴上,薄膜经张紧装置、导向滚筒、牵引滚筒进入薄膜导向成型器,形成对折的U形结构。进而,纵封辊将薄膜横封成筒状,横封辊将筒状薄膜的底部封口,制成敞口袋,供料机构向敞口袋内充填物料,然后横封辊将敞口袋的口封合,切割装置的切刀将连续包装袋切成单袋,完成包装过程。本机具有整体性好、运动精度高、工作效率高、安全可靠、操作容易、制造成本低等特点。关键词:颗粒包装机;结构设计;袋成型;纵封;横封。ABSTRACTGr
3、anulepackingmachineisgenerallyusedinfood,medicine,tea,chemicals,andotherproductsinlooseform,non-sticky,tinyparticlesgoodsinsmalldosesautomaticpackaging,mainlybythepackagingmaterialtransportmechanism,formingmechanism,sealingmechanism,feedmechanism,cuttin
4、ginstitutions,racks,etc.,withsimpleoperation,productioncapacity,wideapplicationandothercharacteristics.Thisdesignmakespackingmachinedesignargument,packagingprincipleanalysis,mechanicaldesignandstrengthcalculation,particlepackingmachinedesignedmainlybyth
5、esupplyhopper,meteringfeed,packagingfilmsupply,molding,longitudinalsealing,transversesealing,quantitativefeeder,cutting,heatingandotherelectricalcomponents,itsworkingprincipleismountedonanadjustablefilmreelshaftaxialdistance,thefilmbythetensioningdevice
6、,theguiderollers,tractionrollerguideintothefilmformingdevicetoformafoldedU-shapedconfiguration.Further,thelongitudinalsealingrollerstransversesealingthefilmintoatubularshape,transversesealingthetubularfilmrollatthebottomoftheseal,madeofopenpocket,toopen
7、thebagfeedingmechanismforfillingmaterial,andhorizontalsealingrollerssealthemouthofthepocketopen,cuttercuttingdeviceintoacontinuousbagsinglebag,completepackagingprocess.Themachinehasgoodintegrity,highprecision,highefficiency,safetyandreliability,easyoper
8、ation,andlowmanufacturingcosts.KEYWORDS:Granulepackingmachine;structuraldesign;bagsmolding;longitudinalsealing;transversesealing.v目录摘要iABSTRACTii目录iii1绪论11.1包装机械的作用11.2包装机械的分类11.3颗粒包装机械的组成21.4颗粒包装机械的发展趋势22颗粒包装机总体结构方案设计42.1颗粒包装机设计