Jet drum type seed metering device for tomato seeding

Abstract

The invention discloses a jet drum type seed metering device for tomato seeding, which comprises a rack, a seed metering mechanism and a transmission mechanism, and is characterized in that the transmission mechanism is arranged on the rack, the rack is provided with the seed metering mechanism above the transmission mechanism, and the seed metering mechanism comprises a drum seed metering unit, amulti-tier seed metering box and seed supply plates; the upper end of the drum seed metering unit is provided with the multi-tier seed metering box, and the first tier of seed supply plate and the second tier of seed supply plate are arranged in the multi-tier seed metering box. The structure of the drum seedling-raising seed metering device with a seed supplementing function is adopted based ona jet suspension mechanism, the jet quantity is increased along with the increase in the diameter of a suction hole, so that the seed picking capacity is enhanced, the aim of one seed being in one hole is basically achieved, and the aim of accurate seeding is achieved. Meanwhile, automatic seeding is achieved, production efficiency is improved, and labor cost and seed cost are reduced.

Description

technical field [0001] The invention relates to the field of agricultural seedling raising machinery, in particular to an air blowing drum type seeding device for tomato sowing. Background technique [0002] At present, California, the European Union and China are the three major tomato producing areas in the world. In my country, the processing tomato planting areas are relatively backward in economy, with rough cultivation techniques, low yields of mass planting, and low economic benefits. The imperfection of the planting technology system has restricted the expansion of the planting area, output and economic benefits of processed tomatoes. The use of plug seedling transplanting technology can improve land utilization, shorten the non-growth period of seedlings, carry out additional stubble cultivation or prolong the planting period of secondary stubble, increase production and income, and alleviate the contradiction of seasonal stubble; it is convenient for seedling maint...

AI Technical Summary

Problems solved by technology

At present, the research and development of the external air-suction plug seedling seed metering device mainly focuses on regular-shaped or pelleted seeds, but the pelletized seeds are expensive and difficult to be accepted by the majority of farmers

In the face of processing tomato seeds characterized by small size, irregular shape, and poor fluidity, it is impossible to meet the precision sowing of "one hole, one seed" only by changing the structural parameters and aerodynamic parameters of the seed picking air chamber and seed suction hole. skills requirement

The sowing of tomato seedlings in plug trays is mainly manual work, with low production efficiency, high labor intensity and high labor costs, which directly restrict the application and promotion of tomato mechanized seedling cultivation technology. Therefore, there is an urgent need for research, development and promotion to realize "one hole one seed "Non-pellet processing tomato seed plug seedling seedling precision seeding machine required by "technical requirements

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