The Design Of Seedlings Replanting And Automatic Detection Device

Hole tray seedling has gradually become the mainstream of modern agriculture. Upland crops transplanting in China already accounted for over 65% of the upland crops planting, in order to realize the hole tray seedling production with automatic transplanting, this subject combining agricultural machinery and agronomy, combined with the hole tray seedling identification, the imperfect seedlings and replanting, develop a fragmentary hole tray seedlings seedlings automatically rejecting and replanting system, robust hole tray seedling for the purpose, in the following aspects are studied.1,Of crops in different age of seedling under physical characteristics and rich physical properties of statistics and analysis, summed up the hole tray seedling robust standards. Hole tray seedlings grow true leaf number of 3-4 piece, laid is 33-36 mm wide, leaf length of 30 to 35 mm, thick stems for 4-7 mm; Hole tray seedling pot body clip compression strength no more than 6 n, and the pot body creep variable would not significantly affect the rapid clip to find tray seedling pot body when clamping relaxation properties of bowl;2,Combining the feature of hole tray seedlings, designed a simple and effective hole tray seedling clip. The blade holder through the slot wheel mechanism of slider-crank mechanism of intermittent movement control, complete the hole tray seedling clip, maintain and release process. Through the Pro/E virtual prototype modeling and movement simulation, combined with ANSYS seedling clip mechanical finger force analysis with hole tray matrix, at the same time using single chip microcomputer to identify and take the system control, can make the identification and weed out the perfect combination;3,Using photosensitive sensor receives the reflected light intensity for hole tray seedling recognition. Lack of reflex of the holes for the green light of the almost to zero, the soil hole have seedlings will be reflected with leaf area is proportional to the amount of green light, the module will be collected by a photosensitive sensor of the reflected light signals into 0,1, input to the single chip microcomputer, as a device for all the input signal of the machiner;4, Analysis of the movement of parts, converting displacement information into stepper motor of the input pulse information, and write into stepper motor single-chip microcomputer control procedures, implementation of the longitudinal movement of miao, miao clip of lateral movement, miao and detection of movement swinging rod movement coordination, realize the whole process of automation;5,Through the study of the kinematical analysis of virtual prototype, and compared with actual test result, optimize the organization design, the main parameters of the agencies;The experiment proved that this hole tray seedling automatic detection and fill the gaps with seedlings device detection, take seedlings, fill the gaps with seedlings link with reasonable, which has some innovative and practical.