Design Of The New-style Automatic Tobacco Leaves Weaving Machine Virtual Prototype Based On UG

The widely used tobacco baking process in our country is to bundle the tobaccoleaves to the tobacco rod, then hang the tobacco rod in the baking room to bake.Weaving tobacco leaves is an important preparation work before baking, is to tie thedistributed tobacco leaves as a unit to the tobacco rod. The traditional manual-weavingtobacco leaves takes a lot of labor, but low efficiency and labor-intensive. Becausemanual-weaving tobacco leaves takes a lot of labor and time, which restricted the largescale planting of tobacco and affected the economic benefits of farmers. So it isnecessary to develop an automated machinery to replace manual-weaving tobaccoleaves, which can improve the efficiency and reduce the labor intensity.At present, the tobacco leaves weaving machines that developed in our country isdivided into two categories: swing-link type and sewing type. The type of swing-linktobacco leaves weaving machine do not improve the efficiency of weaving tobaccoleaves significantly. Although the type of sewing tobacco leaves weaving machine canimprove the efficiency, but during the process of the tobacco leaves weaving, thetobacco leaves will be damaged, which will reduce the quality of tobacco leaves andaffect the economic benefits of the farmers. So there is not an automatic tobacco leavesweaving machine can replace manual-weaving tobacco leaves well. Considering theadvantages and disadvantages of previous tobacco leaves weaving machines, this paperpresents the development of a new type of automatic tobacco leaves weaving machine.Research has been done mainly from the following aspects:①Combined with the process requirements of tobacco baking in our country,analyze the advantages and disadvantages of domestic tobacco leaves weavingmachines, a new working principle, technological process and design scheme of theautomatic tobacco leaves weaving machine is put forward. The automatic tobaccoleaves weaving machine use the type of sewing machine and intermittent feeding modeto finish weaving tobacco leaves.②Introducing the large CAD/CAM/CAE software UG and virtual prototypetechnology. This paper mainly introduce the modeling module, assembly module andmotion simulation module during the process of design, as well as the significance oftobacco leaves weaving machine design based on UG.③Designing the overall structure of the tobacco leaves weaving machine. Designing the thorn-material structure, pick-line structure, transmission, and tobaccotransportation devices of the tobacco leaves weaving machine. Check the strength andlife of the major parts.④Applying UG to finish the parametric modeling and the virtual assembly oftobacco leaves weaving machine. Checking the static interference of the virtualassembly tobacco leaves weaving machine.Discovering the unreasonable of thedesigned parts and modifying in time.⑤Simplifying the virtual assembled tobacco leaves weaving machine, creatingkinematics pair, applying drivers and applying loads. Then generating the virtualprototype. Making kinematics/dynamics simulation and dynamic interference test tothe virtual prototype. Optimizing the design according to the simulation resultsDuring the design of the tobacco leaves weaving machine, adopting the meansbased on UG CAD/CAM technology and virtual prototype technology, makingmodeling and simulation analysis to the tobacco leaves weaving machine through thevirtual environment. Reducing the manufacturing costs of physical prototype, shortingthe design cycle. And improving design quality through repeated optimization of thevirtual environment. Providing a basis for the manufacturing of the physical prototype.