| As the increase of people’s demand for vegetable quantity and quality, as well as labor costsrise, vegetable production automation more and more important. Vegetable grafting machines asindispensable role, vegetable production automation can be implemented in a short period oftime of a mass of vegetable seedling grafting, has an important significance on the vegetableproduction standardization. However, modern grafting machine has high success rate of graft,but the real meaning for automatic grafting machine is to ensure high grafting survivalrate,which seriously affect the promotion of the use of automatic grafting machine. A concept ofrootstock and scion optimal matching was proposed, The agronomic matching characteristic testwas carried for designing a intelligent matching melon vegetable seedlings system. This systemcan realize the seedling fetching, seedling matching and transporting seedling. Experiments werecarried out to study prototype. The main works are as follows:1)When the melon seedling was grafted in the case of using the grafting machine with theattached method, in order to obtain the best period of grafting melon seedling, the agronomicparameters were studied,"NABIZHEN" gourd seedlings and "JIALE" watermelon seedlingswere chosen as experimental object, artificial climate box was used as a healing place for graftedseedling. through artificial seedling diameter measurement, analyzing the Relationship betweenseedling diameter size of the seeding and grafting success rate and the influence of the graftsurvival rate to concluded the best match range.2)A matching device of seedling was present. Device mainly divides into three parts: theclamping mechanism of positioning seeding, the mechanism of seedling matching, themechanism of transporting seedling, witch respectively accomplish positioning of seedlings,matching seedling and output of seedling. According to the requirements of positioning seeding,the structure size of the clamping mechanism of positioning seeding was optimized by using ofMATLAB. Optimal parameters were concluded: HS=-9.5mm, LS=14.5mm, L1S=20.5mm,L2S=14.5mm, L3S=35mm, θS=118.9°.3)A intelligent matching test platform of the melon and vegetable grafting seedling deviceswas designed. According to the functional requirements, the design of the control system wascompleted, the motion control card is used as the controller, the preparation of the controlprocedures was realized by the VC++programming. According to the parameters of theagronomic characteristics, the best algorithm used to match the root stock and scion was studied. Finally, the mechanical device and the control system were integrated, and the control platformwas builded by using debugging movement.4) The prototype test analysis.the module of positioning seeding clamping mechanism andthe module of the seedling moving were integrated;"NABIZHEN" gourd seedlings were chosenas experimental object, experiment was carried out, Seedling positioning clamping on separateoperation success rate was93.3%. Adjusting and optimizing the system by the analysis of testresults. |
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