JPH0456576B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of supplying a seedling bed to a seedling box for sowing and raising plant seeds, for example, by fitting a solid seedbed material made of foamed polyurethane or paper material into a seedling box. It is made to a size that can be filled, and the stacked items are fed out one by one.

If the granular culture soil, which is generally used as a seedling bed, is fed and filled while feeding the seedling box in a fixed quantity while the seedling box is being transported, the following procedures are required: adjustment of the start and stop timing of supply to the seedling box, adjustment of the amount of supply, leveling, compaction, etc. The complexity of the process makes it inconvenient to handle, and the transfer speed has to be slow.

In addition, other methods that are commonly used for supplying solid seedbeds have low work efficiency because the conveyor is temporarily stopped and the solid seedbeds are manually pressed into the seedling box.

In order to eliminate such drawbacks, this invention
The following technical measures were taken. That is, seedling raising box 1
a conveyor 2 that carries and continuously transfers seedlings, and a feeding device located above the conveyor 2 that stacks solid seedbeds 3 of a size that can be fitted and accommodated in the seedling growing box 1 and feeds them one by one. 4, the conveyor 2
This method of supplying a seedling bed 3 to a seedling raising box 1 is characterized in that the seedling bed 3 is fed out one by one into the seedling raising box 1 which is transferred by.

By adopting such a method, the present invention has the following technical effects. That is, as the conveyor 2 advances, when the seedling raising box 1 is moved below the feeding device 4 on which the seedling beds 3 are stacked, the lowermost seedling bed is dropped by the feeding device 4 and is housed in the seedling growing box 1. Since the solid seedbed 3 is formed to a size that fits into the seedling raising box 1, it is easily supplied into the seedling raising box 1, and the seedling raising boxes 1 are transferred one after another.
On the other hand, since the stacked seedbeds 3 can be continuously supplied one by one without stopping, efficiency can be improved.

Next, a diagram example will be explained. First, Figure 1, Figure 2
As shown in the figure, there is a stand 6 supported by several legs 5.
A conveyor 2 is provided in the table 6 for conveying in the direction of the arrow 7. The overall configuration includes a seedling box feeding device 8, a seedbed feeding device 4, a front irrigation device 9, a seeding device 10, a rear irrigation device 11, and a soil covering device 12 arranged in sequence from the right end of this platform 6, that is, from the transfer start end of the conveyor 2. It is said that

The seedling-growing box feeding device 8 includes a support frame 13 that supports a large number of stacked seedling-growing boxes 1, a spiral 15 driven by a feeding motor 14, and a delivery roller conveyor 16. In addition, the seedbed feeding device 4
A case 17 surrounding the stacked seedbeds 3,
A phototube 18 that detects the position of the seedling growing box 1, a feeding claw 19 that operates in response to a signal from the phototube 18,
While this feeding claw 19 is opening and closing, it is composed of a support device 20 that supports the seedbeds 3 stacked above the lowest seedbed 3 that fall so that they do not fall at the same time, and a sequence circuit that controls these related operations. ing. The feeding claw 19 is attached to the shaft 22 together with the arm 21.
One end of the arm 21 is configured to be rotatable via a pin 23 with a plunger 26 of a solenoid 25 that reciprocates in the directions of arrow 24 and counter-arrow 24.

Further, a needle 27 is fixed to the support device 20 so as to pierce and support the seedbed 3 through a hole 28 of the case 17. In order to operate the needle 27 to insert and extract the seedbed 3, arrows 29 are attached to both ends of the device 20. , anti-arrow 29
A plunger 31 of a solenoid 30 that moves in the direction is fixed. The lower portions 32 of the left and right side walls of the case 17 shown in FIG. 4 are arranged very close to the width of the seedling nursery box 1, and the upper part is provided with a stepped portion 33 so as to be arranged very close to the width of the seedling bed 3. The lower part of the side wall on the entrance side of the seedling raising box 1 shown in FIG. 5 is open, and the upper edge 34 of the opening at the lower part of the outlet side wall is bent outward. Note that the upper end 3 of this opening
4 may be provided with a brush 35 hanging therefrom.

The front irrigation device 9 is a shower 36 installed above the conveyor 2 and extending across the width of the conveyor 2.
A tank 37 for receiving surplus water and a drain pipe 38 are provided below the tank 37. Seeding device 1
0 is composed of a seed hopper 39 into which seeds are placed, a seed delivery roll 40 which delivers a fixed amount of seeds, a motor 41 which rotationally drives this, and its transmission device 42. The motor 41 is configured to transmit power to the conveyor 2 for transporting the seedling growing box 1 and the delivery conveyor 43 of the soil covering device 12 through respective transmission devices 44 and 45. The post-irrigation device 11 includes a water supply pipe 46 from a water tank (not shown in the drawings) as a water source, and a pump 47 connected to the water supply pipe 46.
It consists of a post-irrigation shower 49 supplied with water through a pressure water pipe 48 from a pump 47, and a tank 50 and a drain pipe 51 provided below to receive excess water. Note that the pump 47 also supplies water to the pre-irrigation device 9 through a pipe 52.

The soil covering device 12 is provided with a soil covering hopper 53 for storing covering soil in the upper part, a feeding conveyor 43 for feeding soil in fixed amounts at a lower part thereof, and a transmission device 45 for the conveyor 43. Power is transmitted from motor 41 as described above.

Next, the effect will be explained. First, a large number of stacked seedling growing boxes 1 fall onto a downward delivery roller conveyor 16 in order from the lowest one by a spiral 15.
Since the roller conveyor 16 is inclined in the direction of the conveyor 2, the seedling growing box 1 is sent onto the conveyor 2 by its own weight. The seedling growing box 1 on the conveyor 2 is transferred in the direction of the arrow 7 and enters the lower part of the feeding device 4 of the seed bed 3. Seedling box 1 is photocell 1
When it reaches a position where it blocks the light beam No. 8, the control circuit is activated. First, when current flows through the solenoid 30 of the support device 20 and the plunger 31 moves in the direction of the arrow 29 due to the action of the electromagnet, the support device 20 also moves in the direction of the arrow 29, and the needle 27 will fall through the hole 28 of the case 17. 2nd and 3rd on the bottom seedbed 3
Pierce the piece and support it to prevent it from falling. At the same time, when a current flows through the solenoid 25 and pulls the plunger 26 in the direction of the arrow 24, the feeding pawl 19 opens outward, causing the seedling bed 3 at the bottom to fall and drop into the seedling box 1 below.
stored inside. Next, the current of the solenoid 25 of the feeding pawl 19 is cut off, the plunger 26 returns to the direction opposite to the arrow 24, and the feeding pawl 19 returns to its original position, allowing the seedbed 3 stacked at the top to come down. It becomes a waiting state. Subsequently, when the current of the solenoid 30 of the support device 20 is cut off and the plunger 31 returns in the opposite direction of the arrow 29, the needles 27 come out of the seedbed 3 and are released from support, so that the stacked seedbeds 3 are moved by the feeding claws 19.
One cycle of operation of the feeding device 4 by this sequence control circuit is completed in an extremely short time. Note that, instead of using the needle 27, other methods of crimping and supporting may be used.

By the above-described operation of the seedbed feeding device 4, the seedbed 3
When the case 1 falls, as shown in Figure 4,
The lower parts 32 of both side walls of 7 are very close to the width of the seedling raising box 1 to regulate its position, and the position of the seedling bed 3 is also restricted by the step part 33 at the upper part, so if it falls, the raising seedling box can be easily moved. It is accommodated within the width of 1. On the other hand, the method of storing the seedling raising box 1 in the advancing direction may be such that the feeding device 4 is operated at a suitable time to accommodate the seedling raising box 1 moving at a constant speed, but as shown in FIG.
The seedbed 3 may be dropped at an appropriate time when the seedling bed 3 is supported by the upper end of the front end of the seedling raising box 1 in the direction of the transfer arrow 7 and the inner bottom surface of the box 1, as shown in FIG. At this time, as the seedling raising box 1 advances, the front end of the seedling bed 3 hits the upper edge 34 of the opening at the lower part of the exit side wall of the case 17 and is caught, so that as the seedling raising box 1 is transferred, the seedling bed 3 and the seedling raising box The seedlings are filled into the seedling box while sliding relative to each other as shown in FIG. 5b.

Furthermore, when the brush 35 is provided hanging down, the brush 35 presses the upper surface of the seedling bed 3 housed in the seedling raising box 1 until the seedling raising box 1 passes through the lower part of the feeding device 4. can increase the completeness of

The seedling box 1 filled with the seedling bed 3 in the feeding device 4 is irrigated with a pre-watering device 9 to the extent that the seedling bed 3 is moistened to improve seed settling, and then seeds are sown with the sowing device 10. After the seeds and the solid seedling bed 3 are irrigated by the post-irrigation device 11 so that they are sufficiently immersed in water, the seeds are covered with soil necessary for germination and seedling raising by the soil covering device 12, and the seedlings are raised in a nursery room or the like. Served.

[Brief explanation of the drawing]

The figure shows one embodiment of the present invention.
2 is a side view, FIG. 3 is a partially enlarged side view, FIG. 4 is an enlarged sectional view taken along the line A--A in FIG. 1, and FIG. 5 is an explanatory view of the filling action. In the figure, symbol 1 is a seedling box, 2 is a conveyor, 3 is a seedbed, and 4 is a feeding device.

Claims (1)

[Claims] 1 Consists of a conveyor that carries seedling boxes and continuously transports them, and a feeding device that is placed above the conveyor and stacks solid seedbeds of a size that can be fitted and accommodated in the seedling boxes and delivers them one by one. A method for filling a seedling box in a seedling box, characterized by feeding the seedbed one by one into the box being transported by the conveyor.