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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:专业:机械工程及自动化系别:机械与电气工程系指导教师:教授二〇一三年六月(正文下页开始)装配图(0号图)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
2、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。ABSTRACTGranulepackingmachineisgenerallyusedinfood,medicine,tea,chemicals,andotherproduct
3、sinlooseform,non-sticky,tinyparticlesgoodsinsmalldosesautomaticpackaging,mainlybythepackagingmaterialtransportmechanism,formingmechanism,sealingmechanism,feedmechanism,cuttinginstitutions,racks,etc.,withsimpleoperation,productioncapacity,wideapplicationandothercharacteristics.Thisdesignmakespackin
4、gmachinedesignargument,packagingprincipleanalysis,mechanicaldesignandstrengthcalculation,particlepackingmachinedesignedmainlybythesupplyhopper,meteringfeed,packagingfilmsupply,molding,longitudinalsealing,transversesealing,quantitativefeeder,cutting,heatingandotherelectricalcomponents,itsworkingpri
5、ncipleismountedonanadjustablefilmreelshaftaxialdistance,thefilmbythetensioningdevice,theguiderollers,tractionrollerguideintothefilmformingdevicetoformafoldedU-shapedconfiguration.Further,thelongitudinalsealingrollerstransversesealingthefilmintoatubularshape,transversesealingthetubularfilmrollatthe
6、bottomoftheseal,madeofopenpocket,toopenthebagfeedingmechanismforfillingmaterial,andhorizontalsealingrollerssealthemouthofthepocketopen,cuttercuttingdeviceintoacontinuousbagsinglebag,completepackagingprocess.Themachinehasgoodintegrity,highprecision,highefficiency,safetyandreliability,easyoperation,
7、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