JPH05111303A - Adsorption type sowing machine and method for adsorbing seed - Google Patents

Abstract

PURPOSE:To obtain an adsorption type sowing machine suitable for continuously sowing seeds on plug trays and capable of observing the adsorption state of the seeds, etc., from the outside, by forming a hollow suction box having an adsorption surface having plural seed absorption holes from a transparent material. CONSTITUTION:A hollow suction box 1 equipped with a suction pipe 4 and with an interval pressure regulating valve 5 is formed from a transparent material. The suction box has an adsorption surface 2 on which plural seed absorption holes 3 are formed in the cross-cut state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adsorption seeder suitable for continuous seeding of plant seeds and having a structure in which the seed adsorption state and the seeding state can be observed from the outside. The present invention also relates to an adsorption method capable of reliably adsorbing plant seeds into the seed adsorption holes of such an adsorption seeder.

[0002]

2. Description of the Related Art Up to now, when sowing seeds of plants such as cyclamen into plug trays filled with soil, manual sowing by human hands has been mainly performed.
Each one was seeded in a cell of a plug tray. However,
In such a method by hand sowing, sowing takes time,
There was a problem of poor work efficiency. Therefore, to date, various suction-type seeders have been proposed that can seed seeds into a plurality of cells of a plug tray at a time, and the most common type is a hollow type seeder that constitutes the seeder. There is a suction box in which the seed suction holes are formed at a pitch corresponding to the pitch of each cell of the plug tray. However, in the adsorption seeder having such a structure, since the suction box is made of metal, synthetic resin having no transparency, etc. There is a problem that the adsorption state of seeds cannot be observed, and the seeding position on each cell of the plug tray cannot be easily confirmed.

Further, as a method for adsorbing the seeds into the seed adsorbing holes of such an adsorbing seeder, the adsorbing surface of the suction box is directed upward, and the seeds are evenly spread over the adsorbing surface while sowing the seeds there. There is a method of shaking so that it spreads, a method of putting it in a tray or box filled with seeds with the adsorption surface facing downward, and a method of adsorbing while moving the seed case containing seeds. In the method, the seeds are difficult to adsorb to the adsorption holes, it takes time to adsorb the seeds to all the adsorption holes, the work is complicated, and the work efficiency is poor. or,
Adsorption of seeds to the seed adsorption holes often becomes uncertain,
A strong suction force was required to suck the seeds. Therefore, the suction pump used for sucking the inside of the suction box of the adsorption seeder is a suction pump or a vacuum pump dedicated to the adsorption seeder, which is very expensive.

Recently, a seed case, which has a seed feeding port and is movable from one end side to the other end side of the adsorption surface, is disclosed in Japanese Patent Publication No. 1-37081. A seed adsorbing device provided with a closing body that releases the blockage of the seed adsorbing hole upon movement has also been proposed, but such a device has a complicated structure for reliably adsorbing and holding seeds. Moreover, when using this seed adsorption device,
Due to the structure of the device, only the same type of seed can be sown by one operation, so when seeded in a plug tray, it is possible to standardize the seeds in the same plant and seed different types of seeds in one plug tray. There is a drawback that you cannot do it. Therefore, when seeding using such a device,
After sowing, it was necessary to replant the grown plants.

As described above, in the conventional adsorption seeders, it is not possible to easily confirm the adsorption state of the seeds in the seed adsorption holes and the seeding position in each cell of the plug tray, or the seeds of different kinds are simultaneously prepared. None of these devices are suitable for continuous seeding, as they cannot be seeded separately in one plug tray. Therefore, it was also difficult to systematize the seeding on the plug tray using such an adsorption seeder.

[0006]

DISCLOSURE OF THE INVENTION The present invention improves the drawbacks of conventional adsorption seeders, is suitable for continuous seeding of plant seeds, and has a structure in which the adsorption state and the seeding state of seeds can be observed from the outside. An object of the present invention is to provide an adsorption seeder having the following. It is another object of the present invention to provide an adsorption method capable of reliably and easily adsorbing plant seeds to the seed adsorption holes of such an adsorption seeder.

[0007]

The adsorption seeder of the present invention comprises:
A plurality of seed suction holes is composed of a hollow suction box having a suction surface formed in a grid pattern, and the suction box is provided with a suction cylinder and an internal pressure adjusting valve. In addition, the suction box is formed of a transparent material.

First, an example of the adsorption seeder of the present invention is shown in the drawings, and the present invention will be described in detail. FIG. 1 is a perspective view showing a preferred example of the adsorption seeder of the present invention, and FIG. 2 is a sectional structural view of the adsorption seeder shown in FIG. 1 taken along the line AB.

The adsorption seeder (I) of the present invention shown in FIG.
Is composed of a hollow suction box 1 elongated in the horizontal direction, and the suction box 1 is formed of a transparent material. A suction cylinder 4 for reducing the internal pressure and an internal pressure adjusting valve 5 for adjusting the internal pressure of the suction box 1 are attached. On the other hand, the lower side surface of the suction box 1 is an adsorption surface 2 for adsorbing seeds, and a plurality of seed adsorption holes 3 are formed in a grid pattern on the entire adsorption surface 2. .. In addition, in the adsorption seeder (I) illustrated in FIG. 1,
A support member 6 for increasing the strength of the suction box 1 is provided at the center of the inside of the suction box 1.

The material of the suction box 1 constituting the adsorption seeder (I) of the present invention is not particularly limited as long as it is a transparent material, but a methacrylic resin, a styrene resin or the like is preferable.
When forming the suction box 1 as described above, resin plates may be bonded with an adhesive or may be formed by an injection molding method or the like. Further, the size of the suction box 1 may be appropriately selected according to the size of the plug tray used.

Further, in the adsorption seeder (I) of the present invention, the suction cylinder 1 is provided with the suction cylinder 4 for reducing the pressure inside the suction box 1. As shown in FIG. 2, has a cylindrical shape and is connected to the hollow portion of the suction box 1. In the present invention, the attachment position and shape of the suction cylinder 4 are not particularly limited, but it is preferable that the suction cylinder 4 is bent and formed as shown in FIG. 1, and in this case, when sowing, 4a It is convenient because you can use it by holding the part of. The end 4b on the opening side of the suction cylinder 4 is connected to a vacuum pump during use.

Further, in the adsorption seeder (I) of the present invention, the suction box 1 is provided with an internal pressure adjusting valve 5 for adjusting the pressure inside the suction box 1. The valve 5 is for changing the suction force variously according to the size, shape, weight, etc. of the seeds to be sucked, and a commercially available product can be used. In the adsorption seeder shown in FIG. 1, two internal pressure adjusting valves 5 are attached, but the number of internal pressure adjusting valves 5 is not particularly limited.

In the present invention, the seed adsorption holes 3 formed in the adsorption surface 2 of the suction box 1 are arranged in a grid pattern, and the pitch between the seed adsorption holes 3 is the plug used. It is appropriately adjusted according to the pitch of each cell of the tray.
In particular, in the present invention, in order to have a structure that can be applied to various plug trays, the suction surface 2 has a removable structure, and according to the pitch of the cells of the plug tray to be used,
It is preferable that the seed adsorption holes can be replaced with ones having the same pitch. Also, even when the pitch of the seed adsorption holes and the pitch of the cells of the plug tray match,
When the number of cells constituting the plug tray to be used is small, the unnecessary seed adsorption holes 3 may be appropriately used by sealing with an adhesive tape or the like. The size of each child adsorption hole 3 is appropriately adjusted according to the particle size of the seeds to be sucked, but generally the inner diameter is 0.2 to 0.5 mm.
Is.

As described above, in the adsorption seeder of the present invention, since the suction box 1 is transparent, the plug tray is held even immediately after the seeds are adsorbed and held with the adsorption surface provided with the seed adsorption holes facing down. Even on the sowing surface, the adsorbed state of the seeds can be easily visually observed, and reliable sowing can be performed. In addition, by opening and closing the internal pressure adjusting valve 5, it is possible to extremely easily and quickly adjust the adsorption and holding of seeds.

Further, the present invention comprises a hollow suction box having a suction surface in which a plurality of seed suction holes are formed in a grid pattern, and the suction box has a suction cylinder and an internal pressure adjustment. It is also an adsorption method that can surely and easily adsorb the seeds to the seed adsorption holes of the adsorption seeder equipped with the valve. Placed on the seed holding tray,
The suction box is decompressed to adsorb seeds to the seed adsorption holes, wherein the suction box is made of a transparent material, and the seed holding tray is a container-shaped cell. Has a structure in which a plurality of are arranged in a grid pattern and integrated, the pitch of the cells and the pitch of the various child adsorption holes are the same, and the seeds to be sucked are inside the cells. It is characterized in that it is filled with.

That is, in the adsorption method of the present invention, an adsorption seeder consisting of a suction box made of a transparent material and a plurality of small container-shaped cells are arrayed and integrated in a grid pattern. A seed holding tray having the above-mentioned structure, in which the pitch of each cell is the same as the pitch of each child adsorption hole of the adsorption seeder, is used. Then, when the seed is adsorbed in the seed adsorption hole formed in the suction box, after the seed is filled in each cell of the above-mentioned seed retaining tray, the adsorption seeder is mounted on the seed retaining tray. Then, the inside of the suction box is decompressed by a suction pump or the like to suck and hold the seed in the seed suction hole.

FIG. 3 is a perspective view showing an example of the seed retaining tray used in the adsorption method of the present invention, and FIG. 4 is a sectional view of the seed retaining tray shown in FIG. As shown in FIG. 3, the seed retention tray used in the present invention.
(II) has a structure in which a plurality of container-shaped cells 7 are arranged and integrated in a grid pattern, and each cell 7 has a shape in which the lower portion gradually becomes smaller as shown in FIG. It may be one. The pitch of each cell 7 constituting the seed retaining tray (II) matches the pitch of the various child adsorption holes 3 of the adsorption seeder (I), and in the present invention, the seed retaining tray is used. As (II), it is possible to use a plug tray in which the opening provided at the bottom of the plug tray is sealed.
Therefore, in the present invention, by closing the bottom holes of various commercially available plug trays, anyone can easily and inexpensively produce the seed retaining tray (II), which is economical.

FIGS. 5 and 6 show a state in which seeds are sown on a plug tray filled with soil by the adsorption method of the present invention. FIG. 5 shows an adsorption seeder (I). It is a figure showing the state when the seed 8 is adsorbed-held by the seed adsorption | suction hole 3 of FIG. Further, FIG. 6 is a view showing a state when the seeds 8 adsorbed and held in the seed adsorbing holes 3 are sowed in each cell 9 of the plug tray (III) filled with the soil 11 according to FIG. ..

As shown in FIG. 5, in the adsorption method of the present invention, a plurality of seeds 8 are filled in the cell 7 of the seed retaining tray (II) described above. ,
The adsorption seeder (I) was placed on the seed holding tray (II) so that the seed adsorption holes 3 of the adsorption seeder (I) were aligned with each other, and was connected to the suction cylinder 4. By operating a suction pump or the like, the inside of the suction box 1 is decompressed, and the seeds 8 are simultaneously adsorbed and held in all the seed adsorption holes 3. On this occasion,
The internal pressure adjusting valve 5 is opened and closed according to the size and weight of the sucked seeds, and the suction force is adjusted appropriately.

Thereafter, the suction box 1 is placed on the plug tray (III) filled with the soil 11, and at this time,
The positions of the seeds 8 sucked and held in the seed sucking holes 3 are aligned with the positions of the cells 9 of the plug tray (III). Then, by stopping the operation of the suction pump or fully opening the internal pressure adjusting valve 5 attached to the suction box 1, the suction force in the seed adsorption hole 3 is released and the seed 8 is dropped downward. The seeding state as shown in FIG. 6 is obtained.

As described above, in the present invention, as shown in FIG. 5, the pitch of the seed adsorption holes 3 formed in the adsorption surface 2 of the adsorption seeder (I) and the seed retention tray (II). Since the pitch of the cells 7 is the same, one cell 7 corresponds to one seed adsorption hole 3 and the seed 8 is surely attached to the various seed adsorption holes 3
Can be adsorbed on. Thus, in the present invention,
Uses a hand-held household vacuum cleaner as a suction pump for sucking seeds, because the suction force of the seeds can be ensured by suction and the suction force does not decrease due to air leakage from the non-sucked seed suction holes. be able to. Therefore, the device is inexpensive because no special suction pump is required. Moreover, in the present invention, since the suction box 1 of the adsorption seeder (I) is made of a transparent material, there is an advantage that the adsorption state and the seeding state of seeds can be easily observed from the outside.

Further, in the adsorption method of the present invention, since the seed retaining tray (II) consisting of a plurality of independent cells 7 as shown in FIG. 3 is used, each cell 7 is filled. It is possible to freely divide seed types, and it is possible to sow different types of seeds at desired positions.
Furthermore, in the adsorption method of the present invention, although the seeds are retained and sown by the adsorption method, the adsorption and retention of the seeds can be performed very easily and reliably, so that the seeds may be continuously sown in a plug tray. It can be done and is excellent in work efficiency and suitable for systemization.

[0023]

EXAMPLES Examples of the present invention will be described below.
The present invention is not limited to this. Example 1 Using a transparent methacrylic resin plate having a thickness of 5 mm, about 25
A hollow suction box having a size of cm × 50 cm × 5 cm was prepared. At this time, a support member for increasing the strength was provided inside the center of the suction box as shown in FIG.
Then, a seed adsorption hole having an inner diameter of about 0.5 mm was formed in a grid pattern on the bottom surface (adsorption surface) of about 25 cm x 50 cm with a pitch of 2.5 cm. Further, a suction cylinder and an internal pressure adjusting valve were attached to the surface opposite to the suction surface at the position shown in FIG. 1 to manufacture the suction seeder of the present invention. The opening side end of the suction cylinder of the adsorption seeder thus produced was connected to a household vacuum cleaner to suck cyclamen seeds (700 to 1200 grains in 10 ml). You can observe the adsorption state of seeds in
Further, it was very easy to align the plug tray with each cell.

Example 2 A plastic plug tray having a structure in which a plurality of container-shaped cells are arranged and integrated in a grid pattern at a pitch of 2.5 cm is prepared and filled in each cell. In order to retain the seeds, the openings provided on the bottom surface of each cell were closed to form a seed retaining tray. Then, 10 to 20 cyclamen seeds similar to those in Example 1 were put in each cell of the seed holding tray. Then, the adsorption seeder is placed on the seed holding tray so that the position of the seed adsorption hole of the adsorption seeder described in Example 1 matches the position of the cell of the seed holding tray, and suction is performed. The household vacuum cleaner connected to the working cylinder was operated to adsorb and hold the seeds in all the seed adsorbing holes. At this time, the suction force was adjusted by appropriately opening and closing the internal pressure adjusting valve attached to the suction box. On the other hand, prepare the same plug tray that was used to make the above seed holding tray, and in this,
The soil was filled, and the adsorption seeder was placed on the plug tray such that the position of the seeds adsorbed and held in the seed adsorbing holes matched the position of each cell of the plug tray. Then, the operation of the household cleaner was stopped, the suction force in the seed adsorption hole was released, and the seeds were dropped and seeded. When such an adsorption method of the present invention is used,
The seeds could be reliably adsorbed to the seed adsorption holes of the adsorption seeder, and the working time could be shortened.

[0025]

EFFECTS OF THE INVENTION Since the suction box of the present invention is made of a transparent material in the suction box, the seed can be easily seeded immediately after the seed is sucked and held, and also when seeded on the plug tray. The adsorption state can be observed from the outside, reliable seeding is possible, and workability is excellent.

Further, in the seed adsorption method of the present invention using such an adsorption seeder, the bottom hole of the plug tray used for seeding is used as a seed holding tray filled with seed before adsorption. The closed one can be used, and the seed adsorption hole and each cell of the seed retaining tray are 1: 1.
Therefore, the seeds can be reliably adsorbed, and the time required for the adsorption can be shortened. Therefore, it is also suitable for continuous seeding and can be systematized. In addition, since it can reliably carry out adsorption and holding of seeds, as a suction pump,
It is very convenient because you can use your own home vacuum cleaner, and the device itself can be provided at low cost. Furthermore,
By filling each cell of the seed storage tray with different kinds of seeds, it is possible to sow seeds of different kinds and different varieties at the same time by sowing once.

[Brief description of drawings]

FIG. 1 is a perspective view showing a preferred example of an adsorption seeder of the present invention.

FIG. 2 is a cross-sectional structural view of the adsorption seeder shown in FIG. 1 taken along the line AB.

FIG. 3 is a perspective view showing an example of a seed holding tray used in the present invention.

4 is a cross-sectional view of the seed retaining tray shown in FIG.

FIG. 5 is a diagram showing a state in which a seed 8 is adsorbed and held in a seed adsorption hole 3 of an adsorption seeder (I).

FIG. 6 is a view showing a state when the seeds 8 adsorbed and held in the seed adsorbing holes 3 are sowed in each cell 9 of the plug tray (III) filled with the soil 11 according to FIG.

[Explanation of symbols]

 (I) Adsorption seeder (II) Seed retention tray (III) Plug tray 1 Suction box 2 Adsorption surface 3 Seed adsorption hole 4 Suction cylinder 5 Internal pressure control valve 6 Supporting member 7 Cell 8 Seed 9 Cell 10 Open hole

Claims (2)

[Claims] 1. A hollow suction box 1 having a suction surface 2 having a plurality of seed suction holes 3 formed in a grid pattern, and said suction box 1 has a suction cylinder 4 and an internal pressure. An adsorption seeder having a regulating valve 5 attached thereto, wherein the suction box 1 is made of a transparent material. 2. A hollow suction box 1 having a suction surface 2 in which a plurality of seed suction holes 3 are formed in a grid pattern, and the suction box 1 has a suction cylinder 4 and an internal pressure. The adsorption seeder (I) equipped with the adjusting valve 5 is placed on the seed holding tray (II) filled with seeds, and the inside of the suction box 1 is decompressed to the seed adsorption hole 3 In order to adsorb seeds, the suction box 1 is formed of a transparent material, and the seed holding tray (II) has a plurality of container-shaped cells 7 arranged in a grid pattern. That the pitch of each cell 7 and the pitch of each child adsorption hole 3 are the same, and that the seeds to be sucked are filled in each cell 7. A characteristic seed adsorption method.