Nozzle type automatic precision rice seedling raising seeding device

Abstract

The invention discloses a nozzle type automatic precision rice seedling raising seeding device. The device comprises a frame, a vacuum seed sucking assembly, a pneumatic positioning assembly, a seedling tray conveying assembly, a seed tray and a controller; the vacuum seed sucking assembly consists of a seed sucking component, an electromagnetic valve, a negative pressure fan and the like; the negative pressure fan, the electromagnetic valve and the seed sucking component are connected in series through a corrugated pipe; the opening and the closing of the corrugated pipe are controlled by the electromagnetic valve, so that pressure in the seed sucking component is intermittently converted from a negative pressure state to a normal pressure state and seed sucking and seed dropping processes are completed; the pneumatic positioning assembly consists of a lifting guide rail, a lifting cylinder, a translation guide rail, a translation cylinder and the like and is used for completing lifting and translating of the seed sucking component; and the seedling tray conveying assembly is used for conveying seedling trays and accurately positioning the seedling trays, and the whole device is controlled by the controller. According to the device, the precision seeding on rice seedling raisings can be realized, the seeding quantity is precise and adjustable, the seed distance is accurately controlled, seeds are distributed uniformly in each seedling tray, and the seeds are not broken in a seeding process; and the device is suitable for seeding dry rice seeds, soaked seeds and germinated seeds, and is automatic in the seeding process.

Description

technical field [0001] The invention relates to a nozzle-type precision automatic seeding device for rice seedling raising, which is used for automatic and precise seeding of industrialized rice seedling raising, has uniform seed spacing, has good adaptability to dry seeds, soaked seeds, and accelerated germination seeds, and has no broken seeds , the seeding process is automated. Background technique [0002] Industrial rice seedling raising is an important part of rice planting mechanization, which has an important impact on improving rice yield and rice planting mechanization level. At present, the planting devices for industrial rice seedling raising mainly include grooved wheel type, roller air suction type, and orifice plate air suction type. Although all of them can complete the sowing process, the sowing quality is poor, which in turn affects the quality of the seedlings. For example, when sowing with a grooved wheel type seeding device, the sowing amount is realize...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the present situation of inaccurate sowing amount, poor sowing uniformity, uncontrollable seed spacing and high seed breakage rate of the existing rice seedling seeding machine, and provide a kind of precise and adjustable sowing amount, precise seed spacing, and sowing uniformity. Suction nozzle type rice seedling raising precision automatic seeding device with good performance and no damage to seeds

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