Pneumatic needle type seeding device and control method thereof

Abstract

The invention relates to the field of agricultural machinery and automatic control thereof, in particular to a pneumatic needle type seeding device and a control method thereof. The seeding device comprises a conveying mechanism, a rack, suction nozzles, negative pressure mechanisms and a turnover mechanism, wherein the rack is fixed to the upper portion of the conveying mechanism; the suction nozzles are distributed on the periphery of a rotating shaft in multiple rows; the rotating shaft can drive the suction nozzles to rotate together; the suction nozzles are arranged below a seed disc; thenegative pressure mechanisms are corresponding connected with the rows of nozzles one to one, and the turnover mechanism is connected with the rotating shaft. According to a seeding method, a plurality of rows of suction nozzles are utilized to alternately and continuously complete seeding; after a row of suction nozzles is reasonably utilized to complete seed metering, the suction nozzles returnto the seed disc for the next seed taking process, multiple times of seeding can be conducted through one time of arc reciprocating motion, the time for the suction nozzles to return to the seed discfor the next seed taking process is effectively utilized, the equipment operation energy consumption is reduced, and the seeding efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of agricultural machinery and its automatic control, in particular to a pneumatic needle seeding device and a control method thereof. Background technique [0002] In recent years, vegetables have become the second largest crop industry after food, and the planting area has increased year by year, especially leafy vegetables, which have become an indispensable food in people's lives. With the rapid development of the industry driven by the increase in demand, the factory assembly line production of leafy vegetables has become an inevitable trend in the future development of the vegetable planting industry. Sowing is the first and most critical step in factory production line production. Seeding efficiency directly affects production efficiency; seedling quality will directly affect crop growth and yield. [0003] At present, the equipment used for sowing leaf vegetable seeds is mainly pneumatic type, which can be div...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a pneumatic needle sowing device and its control method to solve the problem of low sowing efficiency of the needle sowing device in the prior art

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