Precise seeds sowing device for growing seedlings of aperture disk

Abstract

The invention discloses a precise seeds sowing device for growing seedlings of an aperture disk, which comprises a seeds box, an outlet aperture adjuster, a curtain flow stabilizing plate, a seeds sowing bracket, a pneumatic distribution system and a pneumatic adjustment system; and the outlet aperture adjuster is used for adjusting the size of an outlet of the seeds box, and the seeds are distributed by means of single seed, are orderly arranged and are basically even in density under the action of the curtain flow stabilizing plate after the seeds are flowed out. The pneumatic adjustment system comprises an air compressor and an air pressure adjusting loop connected with the air compressor, wherein a pneumatic distribution central shaft and a rotary drum are divided into a negative pressure cavity and a positive pressure cavity by a seal clapboard: the positive pressure cavity is directly communicated with the atmosphere, the seeds are discharged by means of pressure release when the rotary drum is rotated to the positive pressure cavity, and the seeds are absorbed when the rotary drum is rotated to the negative pressure cavity, therefore, the seeds charge and the seeds absorption are alternately preformed under the continuous rotation of the rotary drum. The device is reasonable in structure, and is novel and simple in principle, so that the precise seeds-sowing is directly realized under the self gravity of the seeds and the free movement of the seeds, and the requirement for applying an outer force such as the vibration and the like in the other various seedlings-growing modes is overcome.

Description

technical field [0001] The invention belongs to the field of agricultural machinery of precision planting equipment for industrialized seedling cultivation and seedling breeding technology of agricultural cultivation, in particular to a precision seed metering device for plug seedling cultivation. Background technique [0002] The precision sowing device is the core equipment technology of precision sowing equipment, which directly affects the effect of sowing. Its promotion will effectively promote the development of precision seeders and facility agriculture, save a lot of manpower and expensive seeds, improve the working environment and labor intensity of cultivation technicians, and achieve better economic and social benefits. [0003] The key equipment to realize the precision seeding technology is the precision seeder, and the core component of the precision seeder is the precision seeder. Under normal conditions, the seeds are still and cannot be directly sowed preci...

AI Technical Summary

Problems solved by technology

[0009] (1) The suction cup type seed metering device belongs to the gap work, and the efficiency of a single disc is high, but the working efficiency of the whole machine is not high; there are many holes on the suction cup, which is prone to seed leakage; If the tray is on the bottom, the seeds on the seed tray are easy to segregate, which will affect the seed absorption effect, and the seed absorption rate is closely related to the distribution of the airflow field.

[0010] (2) The suction nozzle type is easy to leak seeds, the structure of the suction nozzle is complex, the replacement of the suction nozzle is not easy, the cost of manufacturing and installation is high, etc., it is easy to block when seeding, and it is not easy to clear the seeds

[0011] (3) Since the size of a seed-suction hole can only sow seeds corresponding to it, within a certain size and character, it is often necessary to replace the core components of the seed-suction hole, giving design and manufacture, installation, use, economic cost, and service life have had an impact

Images