JPH08242702A - Grafting seedling curing device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a graft seedling curing device with a high survival rate. [Structure] Tray 1 in which grafted seedlings are planted in a curing mini-house 3 in a curing device for curing grafted seedlings
A bench 6 for 5 and a water tank 8 below the bench 6 are provided.
Air is ejected from a large number of air ejection ports of a pair of high-pressure air pipes 11 provided inside in a direction opposite to each other. When the air jetting in the opposite direction collides, fine bubbles 1
3 is generated, water vapor is easily diffused, and the humidity in the curing device is easily maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graft seedling curing device for curing graft seedlings produced by a graft robot, for example.

[0002]

2. Description of the Related Art A grafting robot developed by the present inventors cuts rootstock seedlings and scion seedlings arranged in respective feeders for rootstock seedlings and scion seedlings with respective cutting devices, and the cut ears A grafting robot that joins a tree and a rootstock with a clip using these joining devices, a transplanting device that automatically transplants seedlings grafted by the grafting robot to a soil pot, and a device that acclimatizes and grows the transplanted grafted seedlings Conducted a series of patent applications (Japanese Patent Application No. 6-172950, etc.)
I went.

[0003]

SUMMARY OF THE INVENTION The invention disclosed in Japanese Patent Application No. 6-172950 developed by the present inventor puts seedlings grafted by a grafting robot into a grafting seedling planting container and uses a handling device for the container. It is a grafted seedling production system that transports the grafted material to a curing device adjacent to the grafted robot via it to acclimate and grow the grafted material. There is room for improvement in the curing device of the grafted seedling production system developed by the present inventor, and it is desired to develop a low-cost and simple maintenance device that can adjust temperature and humidity effectively with a simple configuration. Was there. Therefore, an object of the present invention is to provide a graft seedling curing device having a high survival rate.

[0004]

The above-mentioned object of the present invention is a graft seedling curing device having a water tank below a tray bench in which a grafted seedling is planted in a curing house for curing grafted seedlings. At least a pair of air pipes having a large number of air jets are arranged in parallel in the water storage tank, and the air jets from the respective jets collide with the direction of the air jets of the pair of air pipes. This is achieved by the grafted seedling curing device arranged so as to face each other.

[0005]

In the curing house, air is jetted in a direction opposite to each other from a large number of air jets of a pair of air pipes provided in the water tank. Fine air bubbles are generated when the air jetting in the directions opposite to each other collide with each other in water. The generation of bubbles in the water facilitates the diffusion of water vapor, and the humidity inside the curing device can be easily maintained.

[0006]

Embodiments of the present invention will be described with reference to the drawings. FIG.
1 shows a vertical sectional view of a curing house 1 according to an embodiment of the present invention. Although not shown, the curing house 1 is arranged adjacent to a grafting robot that automatically cuts and joins rootstock seedlings and scion seedlings, for example. Therefore, the grafted seedlings obtained by the grafting robot are transported into the curing house 1 in FIG. In the curing chamber 2 of the curing house 1 shown in FIG. 1, four rows of curing mini-houses 3 are provided in the longitudinal direction in the case of this embodiment. This curing mini-house 3 is provided with a partition 5 made of a transparent film so as to provide an environment having a temperature and humidity different from that of the curing room 2 in the curing house 1.
Further, in the curing mini-house 3, there is provided a tray mounting bench 6 on which grafted seedlings are planted. The bench 6 is composed of a large number of rollers so that the tray can be easily moved on the bench 6.

A longitudinal sectional view of the curing mini-house 3 is shown in FIG. 2, and a partial view taken along the line AA of FIG. 2 is shown in FIG. 3 (the partition 5 made of a covering material is not shown). The entrance of the tray 15 in the curing mini-house 3 is provided on the side surface of the curing mini-house 1, and the side surface of the curing mini-house 3 and the longitudinal direction of the curing mini-house 1 are arranged in the same direction.

In the curing mini-house 3, a partition 5 is formed by a water storage tank 8, a frame 9 provided on the water tank 8, and two covering materials made up of a transparent sheet covering the frame 9. Water is supplied to and drained from the water supply / drainage port 7 in the water storage tank 8 to store a predetermined amount of water. In addition, a high-pressure air pipe 11 is arranged in the water storage tank 8 in the longitudinal direction of the curing mini-house 3, and at least one row of the air ejection ports 1 is arranged in the high-pressure air pipe 11.
A plurality of 2 are provided at a predetermined interval. High-pressure air is sent to the high-pressure air pipe 11 from a compressor (not shown), and bubbles 13 are generated from the air ejection port 12. A bench 6 for mounting a tray 15 on which a plurality of grafted seedlings are planted as one unit is provided above the water tank 8.

When air bubbles 13 are discharged into the water from the air outlet 12 of the high-pressure air pipe 11 in the water storage tank 8 of the curing house 1 having the above-mentioned structure, humidified air is discharged from the bubbles 13 and the inside of the curing mini-house 3 is discharged. Humidity is always close to 100%. Further, the water in the water storage tank 8 in the curing mini-house 3 serves as a cushioning material to soften the temperature change of the outside air and reduce the temperature change in the curing mini-house 3. Further, even when the curing device system having the above-mentioned configuration is out of order, there is water under the bench 6 so that the humidity in the curing mini-house 3 can be maintained to the extent that the grafted seedlings are not withered. Fresh air is constantly introduced into the sealed mini-house 3 by the air bubbles 13 spouting from the air spout 12, so the air in the mini-house 3 is replaced and the waste products emitted by the plant are discharged. Also, the occurrence of mold and the like is reduced.

Conventionally, a curing system called a so-called scented mini-house has been used, but since the scented mini-house has a ventilation duct and sprays water on the duct, a large amount of water is sprayed. Although the ventilation port of the duct is clogged and the evaporation state of water is changed depending on the temperature of the air to be ventilated, such a problem does not occur in the curing apparatus system of the present embodiment.

Further, in the conventional scented mini-house system, since the air from the heat pump is sent to the ventilation duct, the temperature changes greatly, and therefore the relative humidity also changes with the temperature change. However, in the system using the curing house 1 of this embodiment, the temperature inside the curing mini-house 3 is controlled by providing the water storage tank 8 under the bench 6 and controlling the water temperature in the water storage tank 8. The temperature change in the mini-house 3 is slow. Further, since the curing apparatus system of this embodiment does not require expensive equipment such as a heat pump, the curing mini-house 3 can be easily added or reduced.
In addition, in the conventional method using a heat pump, in the middle of spring and autumn, for example, when the temperature is high, the indoor heat exchanger may not be able to perform sufficient heat exchange, but heating may not be possible.
In the case of the present embodiment, since the heater in the water tank is only heated even when the temperature is high in the middle of spring and autumn, the heating can be easily performed and the temperature control range is expanded. After the curing of the grafted seedling is completed, the water in the water storage tank 8 is discharged.

4 to 6 (FIG. 4 is a longitudinal sectional view of the curing mini-house 3, FIG. 5 is a view of the AA line view of FIG. 4 with the covering material removed, and FIG. 6 is FIG. BB line view), a pair of high-pressure air pipes 11 are arranged in parallel in the longitudinal direction of the curing mini-house 3 in the water tank 8, and each high-pressure air pipe 11 has at least one row of air ejection ports. A plurality of high pressure air pipes 12 are provided at a predetermined interval, and high pressure air is sent to the high pressure air pipe 11 from a compressor (not shown).
Bubbles 13 are generated from 2. In this embodiment, a water supply pipe 16 for cooling and heating is arranged below the pair of high-pressure air pipes 11 so as to circulate, and hot water or cold water is stored in the water tank 8.
The temperature of the water in the water storage tank 8 is indirectly adjusted by supplying the water to the inside to optimize the environment for curing grafted seedlings in the tray 15 placed on the bench 6.

In the case of the embodiment shown in FIGS. 4 to 6, since the air jets 12 provided in the pair of high pressure air pipes 11 are arranged so as to face each other, as shown in FIG. The air jetted from the air jet ports 12 collide with each other and the bubbles 13 are dispersed. Due to the dispersion of the bubbles 13, the humidity is evenly distributed over the entire curing mini-house 3. Further, due to the collision of the bubbles 13, the diameter of each bubble 13 is reduced, and the vapor can be efficiently diffused.

Further, as shown in FIG. 7, a pair of cooling and heating water supply pipes 16 may be provided on both sides of the high pressure air pipe 11. In addition, as shown in FIG. 8, the air ejection directions of the air ejection ports 12 provided in a line on at least one side surface provided in the pair of high-pressure air pipes 11 are along the wall surface of the water storage tank 8 respectively. It is also possible to provide the air pipes 11 in directions opposite to each other so that the jetted air is foamed to circulate the water in the water storage tank 8. In this case, the water tank 8
Since the water inside is well mixed, the temperature distribution of the stored water can be made uniform.

Further, as shown in FIG. 9, a high-pressure air pipe 11 is provided below the water supply pipe 16 for cooling and heating in the water storage tank 8, and the air ejection direction of the air ejection port 12 of the high-pressure air pipe 11 is used for cooling and heating. When the jet bubbles 13 from the high-pressure air pipe 11 are applied to the cooling / heating water supply pipe 16 toward the water supply pipe 16, the efficiency of temperature diffusion in the water storage tank 8 is improved. Further, in this case, the bubbles 13 hit the cooling / heating water supply pipe 16 to reduce the sizes of the bubbles 13, and the temperature diffusion efficiency in the curing mini-house 3 is also improved.

Further, as shown in FIG. 10, a double pipe 17 is installed in the water tank 8, a cooling / heating medium is passed through the inner pipe 17a thereof, and compressed air is provided between the inner pipe 17a and the outer pipe 17b. It may be configured to pass through. In this case, since compressed air flows between the outer pipe 17b having the air ejection port 18 on the outside and the inner pipe 17a which is a pipe for heating and cooling, the temperature of the cooling and heating medium is transferred to the stored water via the compressed air. heat. Therefore, for example, in the case of the double pipe 17 shown in FIG. 10, the heat transfer surface area for the stored water of the cooling / heating medium is larger than that in the case where the heat is directly transferred from the cooling / heating water supply pipe 16 to the stored water. Therefore, the heat conduction of the cooling / heating medium is improved. Further, when the double piping structure is adopted, the air ejected from the compressed air transfers the heat from the cooling / heating medium to the stored water,
Since the stored water is cooled and heated by the jetted air, there is also an effect that the temperature control response in the curing mini-house 3 becomes faster.

Further, the partition 5 of the curing mini-house 3 shown in FIGS. 4 and 7 to 10 is made of a double coating material made of a transparent sheet, but the inner coating material 5b is breathable and It is preferable to use a material that absorbs water and expands, for example, a sheet made of polyvinyl alcohol, and a material having no air permeability, for example, a sheet made of vinyl chloride, for the outer covering material 5a. In this case, since the outer covering material 5a has no air permeability during the grafting seedling curing, the inner covering material 5b absorbs humidity in the air. Inner coating 5b
When the water is sufficiently absorbed, the water completely closes the fine vent holes of the covering material 5b, the inside of the mini-house 3 is in a sealed state, and the high humidity can be maintained.

When the grafted seedling is cured and the water in the water storage tank 8 is discharged from the water supply / drainage port 7 in the next acclimation stage,
The humidity in the curing mini-house 3 is lowered, and the ventilation hole of the inner coating material 5b is also opened. Further, since the humidity gradually escapes from between the inside and outside covering materials 5b, 5a, it is possible to prevent a rapid decrease in the humidity inside the mini-house 3 and to acclimatize the seedlings.

If the outer coating material 5a is made of a material that does not have air permeability, it will not be affected by the outside air.
There is no possibility that the humidity in the curing mini-house 3 will change due to the influence of outside air. Further, if the inner coating material 5b is water-absorbing, water drops will not be accumulated inside the curing mini-house 3 and will not fall on the plants.

Further, a sheet having a vent is used as the covering material 5b inside the partition 5 of the curing mini-house 3, and a material having no air permeability such as a sheet made of vinyl chloride is used as the outer covering material 5a. You can also In this case, the air sent to the water storage tank 8 is discharged from the vent hole of the inner covering material 5b, but the outer covering material 5a has no air permeability, so that it is not directly emitted to the outside air and the two sheets of Coating materials 5a, 5
It is gradually released from both ends of b. Further, the outside air is not permeable to the outside air humidity because the outside covering material 5a has no air permeability.

In the present embodiment, since the partition 5 is provided in the structure in which the double coating materials 5a and 5b are provided as described above, the air layer between them exerts a heat insulating effect and the inside of the curing mini-house 3 is provided. Air conditioning is performed effectively.

Further, the double coating material 5a as described above,
Instead of 5b, as shown in FIG.
b is a covering material having a ventilation hole, and the outer covering material 5a is provided with non-breathable double covering materials 5a-1 and 5a-2, and between the double covering materials 5a-1 and 5a-2. It is also possible to use the partition 5 of the curing mini-house 3 in which the air is hermetically sealed. The outer non-air-permeable double coating material 5a may have a light-shielding property. Note that FIG. 11 is not the curing house 1 shown in FIGS. 1 to 10, but a tunnel type curing house in which seedlings under curing such as grafted seedlings placed on the ground are covered with the partition 5 through the frame 9. Indicates.

In this way, the air in the tunnel exits from the covering material 5b having a vent, but since there is the non-air permeable covering material 5a on the outside, the humidity in the tunnel does not drop and the air is ventilated. it can. The ventilated air is gradually discharged from both ends of the covering materials 5a and 5b. Further, since the outer covering material 5a has no air permeability, there is no fear that wind or the like will blow into the tunnel and the humidity will decrease. Furthermore, the air layer between the double non-breathable double coating materials 5a has a heat insulating effect.

Conventionally, as shown in FIG. 12, a light shielding coating 21
(Chinese gauze or thigh, etc.) and non-breathable covering material 22
Although (agricultural polyethylene sheet, etc.) is doubled to cover the seedling under curing in a tunnel shape, the air-impermeable covering material 22 is sometimes opened and closed to replace the air.
If the covering materials 5a and 5b shown in FIG.
Air replacement work performed by opening and closing a and 5b becomes unnecessary.

Using the curing house 1 having the structure shown in FIGS. 1 to 10, the water tank 8 is filled with a nutrient solution containing nutrients necessary for plant growth, and the water surface of the nutrient solution is periodically moved up and down. By doing so, the bottom surface of the grafted seedling tray 15 can be kept in a flooded state for a predetermined period. In this case, since the water for humidification in the water storage tank 8 is used as the nutrient solution, it is possible to submerge the grafted seedlings at the same time as the humidification. Further, since air is blown into the nutrient solution for humidification, the amount of dissolved oxygen in the nutrient solution is increased, which also has the effect of promoting the development of the rhizosphere.

In the present embodiment, a curing mini-house 3 is provided in the curing room 2, and only the inside of the mini-house 3 is set as an optimum temperature and humidity environment for grafted seedling curing. Further, a curing indoor space outside the curing mini-house 3 is provided. In particular, in the curing house 1 utilizing natural light as in the system of this embodiment, the intermediate curing chamber 2 space serves as a buffer, which reduces the influence of outside air and saves energy.

[0027]

According to the present invention, the temperature and humidity inside the curing device can be adjusted with a relatively simple device.

[Brief description of drawings]

FIG. 1 is a diagram showing a cross-sectional view of a curing house according to an embodiment of the present invention.

FIG. 2 is a vertical sectional view of a curing mini-house in the curing device of FIG.

3 is a partial view of an AA line view of FIG. 2. FIG.

FIG. 4 is a vertical cross-sectional view of a curing mini-house in a curing house according to an embodiment of the present invention.

5 is a partial view of the AA line view of FIG. 4. FIG.

6 is a BB line view of FIG. 4. FIG.

FIG. 7 is a diagram showing a cross-sectional view (FIG. 7 (a)) and a view taken along line AA of FIG. 7 (a (FIG. 7 (b))) of a curing house according to an embodiment of the present invention.

FIG. 8 is a view showing a cross-sectional view (FIG. 8A) and a view taken along the line AA of FIG. 8A (FIG. 8B) of a curing house according to an embodiment of the present invention.

FIG. 9 is a diagram showing a cross-sectional view (FIG. 9A) and a view taken along the line AA of FIG. 9A (FIG. 9B) of a curing house according to an embodiment of the present invention.

FIG. 10 is a cross-sectional view (FIG. 10A) of the curing house according to an embodiment of the present invention and a view taken along the line AA of FIG. 10A (FIG. 1A).
It is a figure which shows 0 (b).

FIG. 11 is a perspective view (FIG. 11 (a)) of a covering material that constitutes a partition used in a curing house of an embodiment of the present invention and a sectional view of a tunnel-shaped curing house using the covering material (FIG. 11).
It is a figure which shows (b)).

FIG. 12 is a view showing a seedling curing device of a conventional technique.

[Explanation of symbols]

1… Healing House, 2… Healing Room, 3… Healing Mini House, 5
... Partitions, 5a ... Outer coating, 5b ... Inner coating, 6 ...
Bench, 7 ... Water supply / drainage port, 8 ... Water tank, 9 ... Frame, 11 ...
High-pressure air piping, 12, 18 ... Air jets, 13 ... Air bubbles,
15 ... Tray, 16 ... Air-conditioning water supply pipe, 17 ... Double pipe

Claims (1)

[Claims] 1. A grafted seedling curing device having a water storage tank below a tray bench in which a grafted seedling is planted in a curing house for curing grafted seedlings, wherein a large number of air ejection ports are provided in the water storage tank. At least a pair of air pipes are arranged in parallel, and the direction of the air outlets of the pair of air pipes is arranged so as to face each other so that the air blown out from the respective jet ports collides. Grafting seedling curing device characterized by.