CN100426945C - Air blown rice precision seeder - Google Patents

Abstract

The invention discloses an air-blowing precision rice seeder. The seeding plate is installed at the bottom of the seed box. The seeding plate is inclined downward from the outlet of the seeding box. A set of "L" shaped seeding pipes with horizontal long arms and downward short arms are installed at the exit of the seeding plate, and There is a distance between the seed metering plate and the detection sensor is installed above the distance between the seed metering pipe and the seed metering plate. The high-speed air valve is at the same height as the nozzle of the long arm of the seed metering pipe, and the recovery plate is installed on the seed metering pipe and the seed metering plate. Below the spacing, the recovery tray is located below the high-speed air valve, the outlet of the short arm of the seeding pipe is aligned with the respective bowl trays of the seedling trays below, and the drive system is connected to the seedling trays. The rice seeds come out of the seed box and move from the high end to the low end along the V-shaped seed metering plate. When the detection sensor detects that the rice seeds leave the seed metering plate, the high-speed air valve opens, and the rice seeds are blown into the bowl along the seed metering pipe. . When seeds are sown in a row of bowl trays of the seedling trays, the control system gives a signal, and the drive system drives the seedling trays to move to sow seeds for the next row of bowl trays.

Description

Air blown rice precision seeder

technical field

The invention relates to agricultural machinery, in particular to an air-blowing precision rice seeder.

Background technique

Existing rice seeder is aimed at common rice seedling raising at present, can realize the precision seeding of 2-5 grain/hole (transplanting area). The principle of the sowing parts adopted mainly includes mechanical type (groove and socket) and pneumatic type (suction needle, suction cup and roller). Super rice relies on its super tillering ability to obtain high yield. Compared with traditional rice seedling raising, super rice seedling raising has been upgraded from the original 2-5 grains/hole sowing to precision seeding, that is, 1-2 grains/hole. At present, there is no sophisticated pot seedling raising device to meet the requirements of super rice seedlings. The technical requirements for rice 1-2 grains/hole.

Contents of the invention

The purpose of the present invention is to provide an air-blown rice precision seeder, so that the sown seeds are distributed in each bowl of the seedling tray with 1-2 grains of rice seeds, so that the grown seedlings are suitable for planting super rice.

In order to achieve the above object, the technical solution adopted in the present invention is: comprise seed box, seed-discharging plate, seed-discharging pipe, detection sensor, seedling tray, recovery tray and high-speed air valve; The plate is inclined downward from the outlet of the seed box, and a set of "L" shaped seed tubes with long arms horizontal and short arms facing down are installed at the exit of the seed plate. There is a gap, and the detection sensor is installed above the distance between a group of "L"-shaped seeding tubes and the seeding plate. Each high-speed air valve is at the same height as a group of "L"-shaped seeding tubes. It is installed below the distance between the "L" shaped seeding tube and the seeding plate, the recovery tray is located under the high-speed air valve, and the short arm outlets of a set of "L" shaped seeding tubes are aligned with the respective pots of the seedling trays below. The driving system driven by the stepping motor is connected with the seedling tray and installed under the seedling tray, and the position of the seedling tray is lower than the recovery tray.

The described seeding plate is a plate with a "V" groove in cross section, the number of "V" grooves on the seeding plate, the number of a group of "L" shaped seeding tubes, the high-speed air valve and the number of each column of the seedling plate The number of bowls is equal.

The invention has the beneficial effects that: the rice seeds coming out of the seed box fall on the seed-discharging board and move along the seed-discharging board from the high end to the low end. When the rice seeds leave the seeding plate, when the detection sensor detects that there are rice seeds passing by, the high-speed air valve is opened, and the rice seeds are blown into the seeding pipe, and fall into the seedling tray under the other end of the seeding pipe to ensure that they fall into the There are 1 to 2 rice seeds in the bowl, so that the seedlings bred are suitable for planting super rice. It is an efficient, reliable, and seed-saving precision sowing method.

Description of drawings

Fig. 1 is the front view of structural principle of the present invention;

FIG. 2 is a top view of FIG. 1 .

In the figure: 1. seed box, 2. seeding plate, 3. a group of "L" shaped seeding pipes, 4. detection sensor, 5. seedling tray, 6. recovery tray, 7. high-speed air valve, 8. drive System, 9. Rice seed, A. Movement direction of seedling tray.

Detailed ways

The present invention will be further described below in conjunction with drawings and embodiments.

As shown in Fig. 1 and Fig. 2, the present invention includes a seed box 1, a seeding plate 2, a seeding pipe 3, a detection sensor 4, a seedling tray 5, a recovery tray 6 and a high-speed air valve 7; The bottom of the box 1, the seeding plate 2 is inclined downward from the outlet of the seeding box 1, and a group of "L" shaped seeding pipes 3 with long arms horizontal and short arms downwards are installed at the outlet of the seeding plate 2, and a group of " There is a distance between the L"-shaped seeding pipe 3 and the seeding plate 2, and the detection sensor 4 is installed above the distance between a group of "L"-shaped seeding pipes 3 and the seeding plate 2. Each high-speed air valve 7 is connected to a set of The nozzle of the long arm of the "L" shaped seed pipe 3 is located at the same height, and the recovery disk 6 is installed below the distance between the "L" shaped seed pipe 3 and the seed plate 2, and the recovery disk 6 is located under the high-speed air valve 7. The outlets of the short arms of the group "L" shaped seeding tubes 3 are aligned with the pot trays of the lower seedling trays 5, and the drive system 8 driven by a stepping motor is connected with the seedling trays 5 and installed below the seedling trays 5. 5 positions are lower than recovery tray 6.

The described seeding plate 2 is a plate with a "V" groove in cross section, the number of the "V" grooves of the seeding plate 2, the number of a group of "L" shaped seeding pipes 3, the high-speed air valve 7 and the The bowl dish number of every row of dish 5 is equal.

During operation, the rice seeds 9 come out from the seed box 1 and move from the high end to the low end along the seeding plate 2. Detecting sensor 4 is installed on the low-end side of seed metering plate, when detecting that rice seed 9 leaves seed metering plate 2, sends signal to control system, and control system sends signal to high-speed air valve 7, and high-speed air valve 7 opens, and will The fallen seeds 9 are blown into the seed pipe 3, and the rice seeds 9 move along the seed pipe 3 and fall into the bowl pan below the seed pipe 3.

Seedling tray 5 is driven by drive mechanism 8 . The control system controls the drive mechanism 8 to drive the seedling tray 5 to move, which is an intermittent movement.

Every time the seedling tray 5 moves once, the corresponding high-speed air valve 7 switches once to ensure that the rice seeds falling into the plug tray are 1 to 2 grains. When the high-speed air valve 7 was closed, the rice seeds 9 falling from the seeding plate 2 directly fell into the recovery tray 6 .

The high-speed air valve refers to an air valve above 100HZ. The driving mechanism is driven by a stepping motor. The detection sensor is a photoelectric sensor.

The above specific embodiments are used to explain the present invention, rather than to limit the present invention. Within the spirit of the present invention and the protection scope of the claims, any modification and change made to the present invention will fall into the protection scope of the present invention.

Claims (2)

1, precisive blowing paddy-rice seeder comprises kind of a case (1), discharging tube (3), detecting sensor (4) and seedling dish (5), it is characterized in that: also comprise seeding board (2), recovering tray (6) and high speed air valve (7); Seeding board (2) is installed in the bottom of kind of a case (1), it is downward-sloping that seeding board (2) is planted case (1) outlet certainly, long-armed one-tenth level is installed in the exit of seeding board (2), one group of " L " shape discharging tube (3) that galianconism is downward, leave spacing between one group of " L " shape discharging tube (3) and seeding board (2), detecting sensor (4) is installed in the top of one group of " L " shape discharging tube (3) and seeding board (2) spacing, each high speed air valve (7) is positioned at sustained height with the long-armed mouth of pipe of one group of " L " shape discharging tube (3), recovering tray (6) is contained in the below of " L " shape discharging tube (3) and seeding board (2) spacing, recovering tray (6) is positioned at the below of high speed air valve (7), the outlet of one group of " L " shape discharging tube (3) galianconism is aligned in below seedling dish (5) the alms bowl dish separately, drive system driven by stepper motors (8) is connected with seedling dish (5), be contained in the below of seedling dish (5), seedling dish (5) position is lower than recovering tray (6).

2, precisive blowing paddy-rice seeder according to claim 1, it is characterized in that: described seeding board (2) is that cross section is the plate of " V " type groove, and the alms bowl dish number of the number of seeding board (2) " V " type groove, the number of one group of " L " shape discharging tube (3), high speed air valve (7) and the every row of seedling dish (5) equates.

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