机械工程及自动化专业毕业论文--颗粒包装机的总体结构设计.docVIP

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。 PAGE iv ABSTRACT  Granule packing machine is generally used in food, medicine, tea, chemicals, and other products in loose form, non-sticky, tiny particles goods in small doses automatic packaging, mainly by the packaging material transport mechanism, forming mechanism, sealing mechanism, feed mechanism, cutting institutions, racks, etc., with simple operation, production capacity, wide application and other characteristics. This design makes packing machine design argument, packaging principle analysis, mechanical design and strength calculation, particle packing machine designed mainly by the supply hopper, metering feed, packaging film supply, molding, longitudinal sealing, transverse sealing , quantitative feeder, cutting, heating and other electrical components, its working principle is mounted on an adjustable film reel shaft axial distance, the film by the tensioning device, the guide rollers, traction roller guide into the film forming device to form a folded U-shaped configuration. Further, the longitudinal sealing rollers transverse sealing the film into a tubular shape, transverse sealing the tubular film roll at the bottom of the seal, made of open pocket, to open the bag feeding mechanism for filling material, and horizontal sealing rollers seal the mouth of the pocket open , cutter cutting device into a continuous bag single bag, complete packaging process. The machine has good integrity, high precision, high efficiency, safety and reliability, easy operation, and low manufacturing costs. KEYWORDS：Granule packing machine; structural