JP2003023822A - Seedling-feeding device in transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling-feeding device in a transplanter, capable of immediately recovering lateness just after being late in feeding of the seedlings by an operator to enlarge the allowance of the lateness in the feeding of the seedlings by the operator when feeding the seedlings separated to lateral rows, dividing the seedlings fed to a seedling-receiving part at one position to right and left, and delivering the divided right and left seedlings to two seedling- transplanting devices. SOLUTION: A pair of seedling-receiving belts 14a and 14b mutually turning in the reverse direction is installed in the seedling-receiving part 20 at one position, and seedling-receiving conveyor belts 15a and 15b are installed so as to follow the pair of the seedling-receiving belts 14a and 14b respectively. The conveying speeds S2 of the seedling-receiving conveyor belts 15a and 15b are regulated so as to be higher than the conveying speeds S1 of the seedling- receiving belts 14a and 14b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter for supplying seedlings separated in a horizontal row from aggregate seedlings such as paper tube seedlings, transferring the seedlings to two seedling planting devices, and transplanting the seedlings to a main field. The present invention relates to a seedling supply device for a transplanter, which divides the seedlings supplied to the receiving section into left and right parts and transfers them to two seedling planting devices.

[0002]

2. Description of the Related Art A transplanter for planting a plurality of lines is known in which one seedling supplying device transfers the seedlings to two seedling planting devices in order to downsize the device and reduce the number of workers.

The present inventor has proposed a seedling supply device for a transplanter as described above as Japanese Patent Application No. 2001-27589.

The seedling feeding device of this transplanter is provided with a pair of seedling receiving belts that rotate in opposite directions at one seedling receiving portion, and the sending ends of the pair of seedling receiving belts are provided in each seedling planting device. Installed in series, a dividing device was installed between the pair of seedling receiving belts to divide the seedlings into right and left, and a horizontal row of seedlings was supplied across both of the pair of seedling receiving belts as one seedling receiving portion. In addition, the horizontal row of seedlings are split into left and right by a splitting device, and the seedlings supplied to one seedling receiving section are split into left and right and delivered to two seedling planting devices.

Then, when a space for supplying seedlings is opened between the pair of seedling receiving belts, the next seedling is supplied, and a gap up to a predetermined interval is opened between the preceding seedling row and the succeeding seedling row. However, it can be planted as a closely aligned seedling row by the next-stage seedling aligning device without missing a plant.

The seedlings supplied to the seedling receiving portion of the transplanter are
It is a seedling that is separated from a collective seedling such as a paper tube seedling in a row in a horizontal row. To separate the seedling in rows, as shown in Japanese Utility Model Publication 3-27374, Using a moving arcuate needle separator. With this separation tool, 23 at a time
It can be separated into ~ 35 seedlings, and the worker supplies this seedling every 5 to 10 seconds.

[0007]

With the pair of seedling receiving belts of the prior art described above, when the operator supplies 35 seedlings at a time and the transplanter is planting 5 seedlings per second, 7
It would be better to supply seedlings every second. In a normal working state, for example, the separating work is completed in 6 seconds, and the waiting time of 1 second is a pitch time for supplying seedlings every 7 seconds.

However, if the seedlings are peeled off badly, the pitch time may exceed 10 seconds, for example, 10 seconds. A transplanter equipped with a seedling alignment device tries to plant 15 shortage seedlings for 3 seconds without increasing the speed of the transport route upstream of the seedling alignment device, but this speed increases due to the supply. This is when the gap in the seedling row due to the delay reaches the sensor of the seedling alignment device, and after a considerable time has elapsed than when the seeds were supplied with a delay. During that time, the seedling row is conveyed with a pitch time of 7 seconds, and when the gap between the seedling rows reaches the sensor, the speed of the seedling receiving belt is increased to suddenly supply the seedling with a pitch time of 4 seconds.

Therefore, in the above-mentioned conventional example, if the pitch time of 6 seconds is supplied later than the time when the supply is delayed,
The speed of the seedling receiving belt is increased so as to be supplied at a pitch time of 5 seconds later, and when the speed is also supplied at a pitch time of 6 seconds, the speed of the seedling receiving belt is increased so as to be supplied at a pitch time of 6 seconds later. Until then, the worker cannot catch up with the delay and suddenly must supply at a fast pitch time.

[0010] If the left and right seedling aligning devices are set to closely align up to 20 seedlings, if the pitch time exceeds 11 seconds, stunting will occur. .

[0011] Therefore, an object of the present invention is to provide a seedling feeding device for a transplanter, which can catch up the delay immediately after the feeding of the seedlings of the worker is delayed and further tolerates the delay of the feeding of seedlings by the worker. And

[0012]

A seedling feeding device of a transplanting machine according to the invention of claim 1 feeds seedlings P separated in a horizontal row from aggregate seedlings such as paper tube seedlings to two seedling planting devices 5. In the transplanting machine for handing over and transplanting to the main field, one seedling receiving part 20
Pair of seedling receiving belts 14a, 1 that rotate in opposite directions to each other
4b is provided, the seedling receiving and conveying belts 15a and 15b are provided in series at the sending ends of the pair of seedling receiving belts 14a and 14b, and the seedling planting devices 5 are provided at the sending ends of the pair of seedling receiving and conveying belts 15a and 15b. The seedling receiving belts 14a and 14b are provided in series so that the transport speed S1 of the seedling receiving belts 14a and 14b is higher than the transport speed S2 of the seedling receiving and transporting belts 15a and 15b, and the seedlings P in a horizontal row are a pair of seedling receiving belts as one seedling receiving portion 20.
14a, 14b is supplied over both, and the supplied horizontal row of seedlings P are divided into left and right between a pair of seedling receiving belts 14a, 14b,
The seedlings P supplied to one seedling receiving section 20 are divided into left and right and are transferred to the two seedling planting devices 5.

In the seedling feeding device of the transplanter according to the second aspect of the present invention, the conveying speed S1 of the seedling receiving belts 14a and 14b and the conveying speed S2 of the seedling receiving and conveying belts 15a and 15b are changed to be the same, and the seedlings P in a horizontal row are arranged. Left and right seedling receiving belts 14 as two seedling receiving parts
It is supplied over a and 14b and seedling receiving and conveying belts 15a and 15b.

[0014]

According to the first aspect of the present invention, a pair of seedling receiving belts 14a and 14b that rotate in opposite directions are provided in one seedling receiving portion 20 and the pair of seedling receiving belts 14a and 14b are delivered. Seedling receiving conveyor belts 15a and 15b are provided in series at the ends, respectively, and the conveying speed S1 of the seedling receiving belts 14a and 14b is set to the seedling receiving conveyor belt 15.
Since it is set to be higher than the conveying speed S2 of a and 15b, a gap due to a slight delay in supply is brought into close contact between the seedling receiving belts 14a and 14b and the seedling receiving and conveying belts 15a and 15b. Further, even if the supply is delayed beyond a predetermined gap in which the seedling aligning device can come into close contact, the planting can be performed without missing a plant.

In addition, seedlings P in a horizontal row are provided at one seedling receiving section 20.
Are supplied over both of the pair of seedling receiving belts 14a and 14b, and the supplied lateral one-row seedlings P are paired with the pair of seedling receiving belts 14a and 14b.
The seedling P is divided into left and right between a and 14b, and the seedling P supplied to one seedling receiving section 20 is divided into the left and right and delivered to the two seedling planting devices 5. Only by supplying P, it is divided into right and left and supplied to the two seedling planting devices 5.

In the invention of claim 2, the seedling receiving belts 14a, 14a
Transport speed S1 of 4b and transport speed of seedling receiving transport belts 15a and 15b
S2 is changed to the same, and the seedlings P in the horizontal row are provided with two seedling receiving belts 14a and 14b as a seedling receiving portion and a seedling receiving and conveying belt.
Since it is supplied over 15a and 15b, the seedling P can be supplied to two seedling receiving parts when there are two workers.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As a collective seedling, a paper cylinder seedling in which the root portion of the paper cylinder collective raising container is covered with cultivating soil is shown. This paper tube collective raising container is a container in which a large number of paper tubes each having a hexagonal columnar shape and opened at the top when they are unfolded are orderly glued together. When this paper cylinder is filled with soil and sowed to raise seedlings, the seedlings grow and become paper cylinder aggregate seedlings. At the time of transplantation, the seedlings are connected to the individual seedlings P in an orderly manner while maintaining an appropriate connection strength.

A separating tool 30 for separating the collected seedlings into a row of seedlings P in a horizontal row is a hitting plate 31 along the side surface of the gathering seedling, and a hitting plate 31.
A large number of arc-shaped needles 32 supported on the back of the
It comprises a handle 33 at the center of the back surface of 31 and a handle 34 for rotating the arc-shaped needle 32.

The operator holds the handle 33 and the handle 34, and
31 is placed along the side surface of the collective seedling, an arcuate needle 32 is pierced from the upper surface of the paper cylinder of the collective seedling, and the separating tool 30 is tilted downward toward you to warp and separate the whole seedling P in a horizontal row. As for the seedlings P that are separated into one horizontal row, the individual seedlings are connected to each other by the hexagonal sides of the paper cylinder.

Next, the seedling supply device 10 for supplying the seedlings P separated in a horizontal row, and the seedling supply device 10 transfers the seedlings to the two seedling planting devices 5, and the seedling planting device 5 transplants them into the main field. The transplanter for two ridges that is transplanted to the main field at once will be described.

FIG. 1 is a plan view of the transplanter, which is attached to a tractor, towed, and advances downward in the drawing. A long machine frame 1 is provided on the left and right sides, and a transverse machine frame 2 is provided on the rear side from both ends of the machine frame 1. A seedling stand 3 is provided above the rear part of the horizontal machine frame 2, and a collective seedling stored in a container is placed on the seedling stand 3.

Seedling supply device 10 extending over the left and right lateral machine frames 2
A seat 4 on which a worker sits is provided above the center of the machine frame 1, and the worker separates the collected seedlings on the seedling stand 3 into one horizontal row and supplies the seedlings to the seedling feeding device 10.

A pair of left and right seedling planting devices 5 are provided below the seedling feeding device 10. The two seedling planting devices 5 are connected to the seedling feeding device 10 to receive the seedlings P, and two rows are transplanted to the main field at one time. .

The seedling feeding device 10 is provided with a pair of left and right seedling feeding device frames 11a and 11b, and the seedling feeding device frames 11a and 11b are fixed to the lateral machine frame 2.

A pair of left and right belt frames 12a and 12b are provided horizontally in the central direction from the left and right seedling feeder frame 11a and 11b, and the left and right belt frames 12a and 12b are connected and fixed at the central portion.

A pair of seedling receiving belts 14a, 14b as one seedling receiving portion 20 is provided on the center side of the left and right belt frames 12a, 12b.
To provide. The pair of seedling receiving belts 14a and 14b are stretched over the pulleys so that the upper surfaces thereof are in a straight line and the opposite directions, that is, the upper surfaces thereof rotate outward.

The pulleys at the beginning of conveyance of the seedling receiving belts 14a and 14b should be as small as possible, and should be as narrow as possible between the beginnings of the conveyance, and the widths of the seedling receiving belts 14a and 14b should be the same as those of the paper tube and the leaves of the seedling P. The entire width is set so that the total length of the seedling receiving belts 14a and 14b is longer than the width of the seedling P row supplied.

The seedling receiving and conveying belts 15a and 15b are provided in series at the sending ends of the pair of seedling receiving and conveying belts 14a and 14b. The pair of seedling receiving and conveying belts 15a and 15b are hung between the pulleys and the upper surface thereof is the seedling receiving belt. It has the same horizontal straight line shape as 14a and 14b, and the opposite directions, that is, the upper surfaces thereof, rotate outward.

The pulleys at the starting ends of the seedling receiving and conveying belts 15a, 15b have a diameter as small as possible than the pulleys at the sending ends of the seedling receiving belts 14a, 14b, and the distance between the sending end and the starting end of the feeding is made as small as possible. The width of the belts 15a and 15b is wide enough to cover the entire paper tube and leaves of the seedling P, and the total length of the seedling receiving belts 14a and 14b and the seedling receiving and conveying belts 15a and 15b on one side is the seedling P to be supplied. Make it longer than the width of the column. The sending ends of the pair of seedling receiving and conveying belts 15a and 15b are connected to the respective seedling planting devices 5 via belts or the like.

Seedling receiving belts 14a and 14b and seedling receiving and conveying belts
Gauge plates 13a and 13b are provided on the front side of 15a and 15b in the machine traveling direction, that is, on the root side of the seedling P. Gauge plates 13a and 13b are belt frames
Fixed to 12a and 12b, the gauge plates 13a and 13b are seedling receiving belts.
When supplying the seedlings P separated in a horizontal row to 14a, 14b, the roots of the seedlings P are applied so that the seedlings P are placed at predetermined positions on the seedling receiving belts 14a, 14b.

Chain wheels 16a and 16b are provided on the rear side in the machine traveling direction from the pulleys on the sending end side of the seedling receiving belts 14a and 14b, and the pulleys on the starting end side of the seedling receiving conveyor belts 15a and 15b are connected to the rear side in the machine traveling direction. Cars 17a and 17b are provided. Seed receiving belt 14a, 14b
Chainwheels 16a and 16b and seedling receiving conveyor belts 15a and 15b
When a and 17b are drive-connected, the tooth ratio is such that the transport speed S1 of the seedling receiving belts 14a and 14b and the transport speed S2 of the seedling receiving transport belts 15a and 15b are the same.

Chain wheels 18a and 18b are provided on the front side in the machine traveling direction from the pulleys on the sending end side of the seedling receiving belts 14a and 14b, and a chain wheel 19a is provided from the pulleys on the starting side of the seedling receiving belts 15a and 15b to the front side in the machine traveling direction. , 19b are provided. Seed receiving belt 14a, 14b
Chain wheels 18a, 18b and seed wheel receiving conveyor belts 15a, 15b
When a and 19b are drive-connected, the tooth ratio is set so that the transport speed S1 of the seedling receiving belts 14a and 14b is higher than the transport speed S2 of the seedling receiving transport belts 15a and 15b.

Here, the conveying speed S1 of the seedling receiving belts 14a and 14b
The number of seedlings can be changed in order to deal with the case where the number of workers supplying seedlings is one or two, and when there is one worker, a pair of seedling receiving belts 14a as one seedling receiving section 20 is provided. 1
When the number of workers is two, it is supplied over both left and right seedling receiving belts 14a and 14b and seedling receiving and conveying belts 15a and 15b as two seedling receiving portions.

If there is only one worker, the chain wheels 18a, 18b
And chain wheels 19a and 19b are drive-coupled, and chain wheels 16a and 16b and chain wheel 17
By releasing the connection between a and 17b, the transport speed S1 of the seedling receiving belts 14a and 14b is 3 to more than the transport speed S2 of the seedling receiving transport belts 15a and 15b.
60% faster. In the embodiment, it is set to be 50% faster, but if it is too fast, the seedlings will rise, and if it is too slow, it will not be able to catch up with the preceding seedling P.

If there are two workers, the chain wheels 16a, 16b
And the chain wheels 17a and 17b are drive-connected, and the chain wheels 18a and 18b and the chain wheel 19
The connection of a and 19b is released, and the transport speed S1 of the seedling receiving belts 14a and 14b and the transport speed S2 of the seedling receiving transport belts 15a and 15b are made the same. Here, the conveyance speeds S1 and S2 are the same so that the worker can supply the seedlings P in close contact with each other.
This is because the seedlings may rise when the conveying speed S1 of the seedling receiving belts 14a and 14b is fast in the closely arranged seedling P row.

Next, the operation of the transplanter equipped with the seedling supply device 10 will be described along with its effects.

If there is only one worker, the seedling receiving belt 14
The conveying speed S1 of a and 14b is set to be higher than the conveying speed S2 of the seedling receiving and conveying belts 15a and 15b, and the seedlings P are separated from the aggregated seedlings of the seedling stand 3 by the separating tool 30 in a horizontal row. The seedling receiving belt 20 serving as one seedling receiving portion 20 is inverted and supplied over both of the pair of seedling receiving belts 14a and 14b.

In supplying the seedlings, the seedlings in a horizontal row are not evenly supplied to both the seedling receiving belts 14a and 14b, but the seedlings P are supplied so that the number of seedlings P tends to be large. Then, after placing the seedling P on the seedling receiving belts 14a and 14b, the arc-shaped needle 32 of the separating tool 30 is pulled out. Pair of seedling receiving belts 14a, 1
The seedlings P supplied over both 4b are a pair of seedling receiving belts.
The pair of seedling receiving belts 14a, 14b are divided into left and right by rotating 14a, 14b in opposite directions.

At this time, a pair of seedling receiving belts 14a and 14b that rotate in opposite directions are provided in one seedling receiving portion 20,
The seedling receiving conveyor belts 15a and 15b are provided in series at the sending ends of the pair of seedling receiving belts 14a and 14b, and the conveying speed S1 of the seedling receiving belts 14a and 14b is set higher than the conveying speed S2 of the seedling receiving conveyor belts 15a and 15b. , The seedling receiving belt has a gap due to a slight delay in supply.
Since the 14a, 14b and the seedling receiving and conveying belts 15a, 15b are in close contact with each other, the delay in seedling supply can be immediately recovered, and the seedling supply work can be performed with a margin. Further, even if the supply is delayed beyond a predetermined gap where the seedling aligning device can be in close contact, the planting can be performed without a stockout. Therefore, a delay in the seedling supply by the worker can be more tolerated and the planting can be carried out without a stockout.

In addition, the seedlings P in a horizontal row are provided at one seedling receiving section 20.
Are supplied over both of the pair of seedling receiving belts 14a and 14b, and the supplied lateral one-row seedlings P are paired with the pair of seedling receiving belts 14a and 14b.
It is divided into left and right between a and 14b, and the seedling P supplied to one seedling receiving section 20 is divided into the left and right and delivered to two seedling planting devices 5, and the seedling P is placed in one seedling receiving section 20. Since it is divided into right and left and supplied to the two seedling planting devices 5 only by supplying, one operator can transplant two rows at a time.

If there are two workers, the seedling receiving belt 14
The conveying speed S1 of a, 14b and the conveying speed S2 of the seedling receiving and conveying belts 15a, 15b are the same, and the seedlings P are separated from the aggregated seedlings of the seedling stand 3 in a row in a row by a separating tool 30, The seedling receiving belts 14a and 14b on the left and right and the seedling receiving and conveying belts 15a and 15b as two seedling receiving portions are inverted and supplied.

At this time, the transport speed S1 of the seedling receiving belts 14a and 14b and the transport speed S2 of the seedling receiving and transporting belts 15a and 15b are changed to the same, and the seedlings P in a horizontal row are provided at the two left and right seedling receiving portions. It is supplied over the seedling receiving belts 14a and 14b and the seedling receiving and conveying belts 15a and 15b, and when the number of workers is two, the seedlings P can be easily supplied to the two seedling receiving parts, so that the number of workers increases. The efficiency can be improved.

Next, a pair of seedling receiving and conveying belts 15a and 15b
The seedlings P that have reached the delivery end of are separated into individual seedlings P and transported downward, and then transported in the horizontal opposite direction, and the seedling sorting device removes defective seedlings without leaves from the seedling P row. ,
After the seedling P rows having irregular intervals are closely aligned by the seedling aligning device, the seedlings P are transferred to the two seedling planting devices 5 by a pair of vertical conveyor belts separated from each other at predetermined intervals and transplanted to this field. To be done.

In the above embodiments, the seedling P is a paper-tube-assembled seedling with a paper-tube-assembled seedling container, but the seedling-growing medium itself may be an inorganic fiber or polymer compound forming the seedling-raising container. The seedlings taken out from the seedling raising container may be any seedlings that are connected to each other.

Further, although the example in which the worker supplies the seedlings P by hand using the separating tool 30 has been shown, it may be mechanically supplied by an automatic supplying device.

Although a pair of seedling receiving belts 14a, 14b and seedling receiving and conveying belts 15a, 15b are shown as a pair of seedling receiving belts or a pair of seedling receiving and conveying belts, a plurality of belts are connected without any step. Alternatively, a conveying means such as a chain conveyor or a roller conveyor may be used.

Further, the pair of seedling receiving belts 14a and 14b rotate in opposite directions to each other so that the pair of seedling receiving belts 14
Although an example in which the a and 14b are divided into the left and right sides is shown, the dividing means may be separately provided between the pair of seedling receiving belts 14a and 14b and then divided into the left and right sides.

[0049]

According to the invention of claim 1, a pair of seedling receiving belts that rotate in opposite directions are provided at one seedling receiving portion, and seedling receiving and conveying belts are provided at the sending ends of the pair of seedling receiving belts. The seedling receiving belt is set to a higher speed than the seedling receiving and conveying belt, and a gap due to a slight delay in the feeding closely adheres between the seedling receiving belt and the seedling receiving and conveying belt. The seedlings can be immediately regained, and the seedling supply work can be performed with sufficient time. Further, even if the supply is delayed beyond a predetermined gap where the seedling aligning device can be in close contact, the planting can be performed without a stockout. Therefore, a delay in the seedling supply by the worker can be more tolerated and the planting can be carried out without a stockout.

Further, the seedlings P in a horizontal row are supplied over both of a pair of seedling receiving belts as a seedling receiving portion at one place, and the supplied horizontal rows of seedlings are left and right between the pair of seedling receiving belts. Divide and divide the seedlings supplied to one seedling receiving part into left and right and pass them to two seedling planting devices, just supply the seedlings to one seedling receiving part and split into two left and right seedling planting Since it is supplied to the attached device, one worker can transplant the two articles at once.

According to the second aspect of the present invention, the conveying speed of the seedling receiving belt and the conveying speed of the seedling receiving conveying belt are changed to the same, and the seedlings in one horizontal row are used as two seedling receiving portions. When the number of workers is two, the seedlings can be easily supplied to the two seedling receiving portions when the number of workers is two. Therefore, the work efficiency can be improved when the number of workers is increased.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a seedling supply device of a transplanter.

FIG. 2 is a side view thereof.

FIG. 3 is a partially enlarged front view showing a main part thereof.

FIG. 4 is a partially enlarged view showing a main part of FIG.

5 is a partially enlarged view showing a main part of FIG.

FIG. 6 is a diagram showing the operation of FIG.

FIG. 7 is a partially enlarged view showing a main part of FIG.

FIG. 8 is a diagram showing the operation of FIG. 7.

FIG. 9 is a side view of the separating tool.

FIG. 10 is a front view of FIG. 9.

[Explanation of symbols]

5 Seedling planting equipment 14a, 14b seedling receiving belt 15a, 15b Seed receiving conveyor belt 20 One seedling receiving section P seedling S1 transport speed S2 transport speed

Claims (2)

[Claims] 1. In a transplanter for supplying seedlings separated in a horizontal row from aggregate seedlings such as paper tube seedlings, passing them to two seedling planting devices and transplanting them into this field, seedling receiving portions at one place are in opposite directions to each other. A pair of seedling receiving belts that rotate in the direction of a pair are provided, seedling receiving and conveying belts are connected to the sending ends of the pair of seedling receiving belts, and seedling planting devices are connected to the sending ends of the pair of seedling receiving and conveying belts. Provide the seedling receiving belt with a conveying speed higher than the conveying speed of the seedling receiving and conveying belt, and supply the seedlings in a horizontal row across both of the pair of seedling receiving belts as the seedling receiving portion at one location. A seedling supply device for a transplanter that divides a row of seedlings into left and right between a pair of seedling receiving belts and divides the seedlings supplied to one seedling receiving section into two left and right seedling planting devices. 2. The transfer speed of the seedling receiving belt and the transfer speed of the seedling receiving and conveying belt are changed to the same, and the seedlings in a horizontal row are spread over the left and right seedling receiving and belts as two seedling receiving portions. The seedling supply device of the transplanter according to claim 1, which supplies the seedlings.