CN114271072B - Double-shielding type precise seedling and seeding device and method - Google Patents
Double-shielding type precise seedling and seeding device and method Download PDFInfo
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- CN114271072B CN114271072B CN202111647335.9A CN202111647335A CN114271072B CN 114271072 B CN114271072 B CN 114271072B CN 202111647335 A CN202111647335 A CN 202111647335A CN 114271072 B CN114271072 B CN 114271072B
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Abstract
The invention relates to a double-shielding type precise seedling seeding device and a double-shielding type precise seedling seeding method. The method is characterized in that a metal hole shielding layer is attached to the surface of a dielectric insulating layer to form a roller matrix, and holes which adapt to morphological characteristics and sizes of seeds are uniformly distributed on the surface of the roller matrix. Under the excitation of an electric field generated by a positive pressure output electrode, charges with equal size and opposite polarity are generated on the surfaces of a dielectric insulating layer and seeds, and adsorption force is generated in only the holes under the action of opposite charges and a metal hole shielding layer, so that quantitative adsorption and seed taking are realized; under the excitation of an electric field generated by the negative pressure output electrode, charges with the same polarity are generated on the dielectric insulating layer and the surfaces of the seeds, and under the repulsive action of the charges with the same polarity, the seeds fall into the plug tray through the seed guide channel, so that the requirement of precision seeding is met.
Description
Technical Field
The invention relates to a double-shielding type precise seedling and seeding device and method, and belongs to the field of precise seeding equipment.
Background
The plug seedling planter is a core component of seedling planter, and is most commonly used at home and abroad at present, in order to improve seed taking precision, the existing air-sucking planter generally adopts small-aperture and long-lead suction holes, faces small-size and irregular vegetable seeds (such as wire peppers and processed tomatoes) which contain more impurities and are not pelleted, the suction holes are always blocked, the technical bottleneck problem of seed sowing precision reduction is caused, and the application and popularization of the existing air-sucking plug seedling planter in large-scale planting of the irregular small-particle vegetable seeds are restricted.
Disclosure of Invention
The invention provides a double-shielding type precise seedling and seeding device and method, and aims to solve the technical bottleneck problem that the seeding precision is reduced due to the blockage of suction holes of a traditional air suction seedling and seeding machine.
The invention relates to a double-shielding type precise seedling seeding device and a double-shielding type precise seedling seeding method. The method is characterized in that a metal hole shielding layer is attached to the surface of a dielectric insulating layer to form a roller substrate, holes which adapt to morphological characteristics and sizes of seeds are uniformly distributed on the surface of the roller substrate, and the interior of the roller is divided into a positive pressure output area and a negative pressure output area of the electrostatic generator by a metal shielding plate. Under the excitation of an electric field generated by a positive pressure output electrode of the electrostatic generator, charges with equal size and opposite polarity are generated on the surfaces of the dielectric insulating layer and the seeds, and adsorption force is generated in only the holes under the action of opposite charges and the shielding layer of the metal holes, so that the seeds are quantitatively adsorbed and taken; under the excitation of an electric field generated by a negative pressure output electrode of the electrostatic generator, charges with the same polarity are generated on the dielectric insulating layer and the surface of the seeds, and under the repulsive action of the charges with the same polarity, the seeds fall into the plug tray through the seed guide channel, so that the requirement of precision sowing is met.
Compared with the prior art, the invention utilizes the principle of opposite charges attracting and same charges repelling to seed the seeds, can effectively avoid the problem of reduced seed-sowing precision caused by the blockage of the suction holes, and is beneficial to the popularization of mechanical precise seedling and sowing.
Drawings
Fig. 1 is a schematic and schematic diagram of a double-shielded precise seedling-raising and seeding device and method.
Fig. 2 is a functional block diagram of a double-shielded precision seedling and seeding apparatus and method.
Fig. 3 is an electric field and charge distribution diagram of a double-shielded precision seedling and seeding apparatus and method.
In the figure: 1-dielectric insulating layer, 2-seed, 3-metal type hole shielding layer, 4-seed box, 5-brush, 6-electrostatic generator positive pressure output electrode, 7-metal shielding plate, 8-type hole, 9-electrostatic generator negative pressure output electrode, 10-seed guiding channel, 11-cave dish, 12-conveyer belt.
Detailed Description
The structural principles and embodiments of the present invention will be described in detail with reference to fig. 1-3.
The invention relates to a double-shielding type precision seeding device and a double-shielding type precision seeding method, which mainly comprise a dielectric insulating layer (1), a metal hole shielding layer (3), a seed box (4), a positive pressure output electrode (6) of an electrostatic generator, a metal shielding plate (7), holes (8), a negative pressure output electrode (9) of the electrostatic generator and a plug (11). The electrostatic generator is characterized in that a metal hole shielding layer (3) is attached to the surface of a dielectric insulating layer (1) to form a roller matrix, holes (8) which adapt to morphological characteristics and sizes of seeds are uniformly distributed on the surface of the roller matrix, and the interior of the roller is divided into a positive pressure output area and a negative pressure output area of the electrostatic generator by a metal shielding plate (7).
The working process of the invention is as follows: when the device works, the electrostatic generator is connected, under the excitation of an electric field generated by a positive pressure output electrode (6) of the electrostatic generator, polarized charges with equal size and opposite polarity are generated on the surfaces of the dielectric insulating layer (1) and the seeds (2), and adsorption force is generated in only the shaped holes (8) under the mutual attraction of opposite charges and the action of the metal-shaped hole shielding layer (3), so that the seeds are quantitatively adsorbed; the adsorbed seeds move to a seed feeding area along with the roller through a seed carrying area; under the excitation of an electric field generated by a negative pressure output electrode (9) of the electrostatic generator, polarized charges with the same polarity are generated on the surfaces of the dielectric insulating layer (1) and the seeds (2), and under the action of the gravity of the seeds and the repulsion of the like charges, the seeds fall to the plug (11) through the seed guide channel (10), so that the precision sowing requirement of one hole and one grain is realized.
Claims (1)
1. The double-shielding precise seedling and seeding device mainly comprises positive pressure output electrodes of an electrostatic generator, negative pressure output electrodes of the electrostatic generator, a dielectric insulating layer, a metal hole shielding layer, a metal shielding plate, holes and a plug tray; the method is characterized in that a metal hole shielding layer is attached to the outer surface of a dielectric insulating layer to form a roller matrix, and holes which adapt to morphological characteristics and sizes of seeds are uniformly distributed on the surface of the roller matrix; the metal shielding plate divides the interior of the roller into a positive pressure output area of the electrostatic generator and a negative pressure output area of the electrostatic generator; under the excitation of an electric field generated by a positive pressure output electrode of the electrostatic generator, polarized charges with equal size and opposite polarity are generated on the surfaces of the dielectric insulating layer and the seeds, and adsorption force is generated in only the holes under the mutual attraction of opposite charges and the action of the metal hole shielding layer, so that the seeds are quantitatively adsorbed; the adsorbed seeds move to a seed feeding area along with the roller through a seed carrying area; under the excitation of an electric field generated by a negative pressure output electrode of the electrostatic generator, the dielectric insulating layer and the surface of the seed generate polarized charges with the same polarity, and under the action of the gravity of the seed and the repulsion of the charges with the same polarity, the seed falls to the plug through the seed guide channel, so that the precision sowing requirement of one seed per hole is realized; the seed feeding area is divided into a seed feeding transition area and a seed repellent area, and the seed feeding transition area has two functions, namely, a positive pressure output electrode of the electrostatic generator, a negative pressure output electrode of the electrostatic generator and a corresponding electric field are separated, so that the mutual interference of the two electric fields is prevented; secondly, the seeds and the dielectric insulating layer enter a depolarization process, partial polarized charges are lost, so that an electric field generated by a negative pressure output electrode of the electrostatic generator is convenient to excite the dielectric insulating layer, and polarized charges with the same polarity are generated on the surfaces of the dielectric insulating layer and the seeds, thereby realizing efficient seed feeding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111647335.9A CN114271072B (en) | 2021-12-30 | 2021-12-30 | Double-shielding type precise seedling and seeding device and method |
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| CN202111647335.9A CN114271072B (en) | 2021-12-30 | 2021-12-30 | Double-shielding type precise seedling and seeding device and method |
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| CN114271072A CN114271072A (en) | 2022-04-05 |
| CN114271072B true CN114271072B (en) | 2023-05-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114651575A (en) * | 2022-04-16 | 2022-06-24 | 石河子大学 | Electromagnetic interference prevention type high-voltage electrostatic seed metering roller |
| CN116746323B (en) * | 2023-07-11 | 2024-05-28 | 济南市农业科学研究院 | Tomato seed treatment method and equipment |
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| RU2526643C1 (en) * | 2013-02-21 | 2014-08-27 | Федеральное государственное образовательное учреждение высшего профессионального образования КАБАРДИНО-БАЛКАРСКАЯ ГОСУДАРСТВЕННАЯ СЕЛЬСКОХОЗЯЙСТВЕННАЯ АКАДЕМИЯ ИМЕНИ В.М. КОКОВА | Magnetic seed-feeding device |
| CN205305385U (en) * | 2016-01-29 | 2016-06-15 | 巢湖学院 | Cylinder precise seed -metering device of vibration is inhaled to gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1277917A1 (en) * | 1985-06-18 | 1986-12-23 | Кишиневский Ордена Трудового Красного Знамени Сельскохозяйственный Институт Им.М.В.Фрунзе | Sowing apparatus |
| JP2606890Y2 (en) * | 1993-07-26 | 2001-01-29 | ヤンマー農機株式会社 | Seeding equipment |
| RU2168886C1 (en) * | 1999-10-26 | 2001-06-20 | Ивженко Станислав Андреевич | Seeding unit |
| UA77327C2 (en) * | 2005-02-07 | 2006-11-15 | Electrostatic separator of mixtures and installation for pre-sowing seed treatment | |
| CN102106211B (en) * | 2011-01-10 | 2012-02-01 | 淮海工学院 | Precise seeds sowing device for growing seedlings of aperture disk |
| CN102440104B (en) * | 2011-09-26 | 2013-06-26 | 中国农业大学 | Frictional static adsorption type seeding device |
| CN206963324U (en) * | 2017-04-21 | 2018-02-06 | 东莞市稳锐五金模具有限公司 | A kind of discharge plate of drum-type tray seeder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2526643C1 (en) * | 2013-02-21 | 2014-08-27 | Федеральное государственное образовательное учреждение высшего профессионального образования КАБАРДИНО-БАЛКАРСКАЯ ГОСУДАРСТВЕННАЯ СЕЛЬСКОХОЗЯЙСТВЕННАЯ АКАДЕМИЯ ИМЕНИ В.М. КОКОВА | Magnetic seed-feeding device |
| CN205305385U (en) * | 2016-01-29 | 2016-06-15 | 巢湖学院 | Cylinder precise seed -metering device of vibration is inhaled to gas |
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