Precise seed-sowing device for pneumatic seeder

Abstract

The invention discloses a precise seed-sowing device for a pneumatic seeder. The precise seed-sowing device comprises a sowing tank, wherein a seed feeding tank is fixedly connected to the top of thesowing tank, a sowing plate communicates with the right side of the seed feeding tank, and the top of the sowing tank communicates with the bottom of the seed feeding tank. The invention relates to the technical field of seeders. According to the precise seed-sowing device for the pneumatic seeder, a vacuum generator is started to control a first communication pipeline to generate a negative pressure in a seed feeding roll, and seeds are adsorbed in concave holes; when the seed feeding roll rotates, the concave holes in the surface of the seed feeding roll continuously adsorb the seeds in thesowing tank, the adsorbed seeds are extruded by virtue of an elastic extrusion pad and slide into a guiding trough, then a second communication pipeline communicating with the vacuum generator blows ablowing hole along an air-guiding pipeline all the time, the seeds are blown into a sowing pipeline in the sowing plate through the blowing hole and can be quantitatively sowed rapidly and continuously, and accurate quantification is realized, so that errors and a blocking condition are avoided.

Description

technical field [0001] The invention relates to the technical field of seeders, in particular to an air-suction seeder precision metering device. Background technique [0002] Seeding machine is a planting machine that uses crop seeds as the sowing object. It is used for a certain type or a certain type of crop. It is often named after the name of the crop type, such as grain drill, corn hole sower, cotton seeder, pasture spreader, etc., sowing The object of machine planting is crop seeds or coated seeds made into pellets. According to the sowing method, it can be divided into three types: vacuum seed sower, sower, drill and hole sower. Various types of precision sowing have been developed in large quantities since the 1950s. It can precisely control the seeding amount, hole distance and sowing depth. The pneumatic seeding precision seeding machine developed in the 1970s, its seeding device (air suction type, air pressure type or air blowing type) uses positive pressure or n...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an air-suction seeder precision metering device, which solves the problem that the precise seed metering often has a relatively complicated structure, and after the seeds need to be adsorbed by the adsorption device, the adsorption device will be moved by the driving device. Moving to the sowing place for sowing, the sowing cannot be performed continuously during sowing, the sowing efficiency is low, a lot of time is wasted, and the structure is often complicated, requiring multiple power devices to drive

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