JP2537452B2 - Aligned seedling transfer device in transplanter - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to transplant cultivation of agricultural products,
In a transplanter that uses aligned seedlings such as a paper tube seedling by a paper tube nursery container that is separably and orderly connected to individual seedlings A transfer device for aligned seedlings.

[0002]

2. Description of the Related Art A separating device for automatically separating an arrayed seedling such as a paper tube seedling into individual seedlings by reciprocating lateral movement and intermittent vertical movement has been previously developed by the present inventors in Japanese Patent Application No. 2-414703. Separation device for aligned seedlings ”. This separating device moves the aligned seedlings and feeds them to a pair of rollers to separate them into individual seedlings.To move the seedlings, the horizontal moving mechanism that reciprocates the aligned seedlings and the moving end of the horizontal moving mechanism are aligned. A vertical movement mechanism for intermittently moving the seedlings in the vertical direction was provided, and a pair of rollers alternately moved forward and backward along the axis corresponding to the transfer of the vertical movement mechanism to continuously separate the aligned seedlings. .

A method and apparatus for transferring an aligned seedling such as a paper tube seedling from a seedling carrying container to a seedling placement portion of a transplanter has been disclosed by the present inventors in Japanese Patent Application No. 3-290761 “Alignment in transplanter”. Seedling transfer method and device ”.

According to this method, the opening of the seedling carrying container on which the aligned seedlings are placed faces the seedling receiving port of the seedling placing part of the transplanter, and the contacting plate of the attracting device is placed on the seedling carrying container. It is applied to the rear part of the seedling and the attracting device is moved toward the separating part to transfer the aligned seedlings from the seedling transport container to the seedling placing part.

In Japanese Utility Model Publication No. 50-27451 "Seedling transfer device in seedling planting machine", lateral projections are continuously provided on the upper surface of a slanted seedling stand, and the space between the projections is increased. A frame with a plurality of rollers that fits in is mounted on the seedling stand so that it can be moved up and down, and a seedling plate containing paper tube seedlings is placed on the seedling stand. A seedling stand has been proposed in which, when tilted, the seedling dish rotates a roller by its own weight to descend.

[0006]

In the above-mentioned conventional "separating device for aligned seedlings", the aligned seedlings are reciprocally and laterally moved by a lateral movement mechanism to be supplied to a pair of rollers to be separated into individual seedlings. Since the aligned seedlings are placed on the moving mechanism for a long time in the moving direction of the lateral moving mechanism, they are separated if the separated seedling row is deformed or slanted with respect to the moving direction of the lateral moving mechanism. Separation errors may occur because they do not contact the pair of rollers constantly. Therefore, it is necessary to transfer the aligned seedlings from the seedling transport container without deforming or slanting them on the belt for supplying the aligned seedlings to the separating section.

Further, the contacting plate of the attracting device in the "method and device for transferring aligned seedlings in the transplanter" of the prior art described above is applied to the rear part of the aligned seedlings placed in the seedling transport container, and the attracting device is attached. In the case of moving the aligned seedlings from the seedling transport container to the seedling placing portion by moving in the direction of the separating portion, it is possible to transfer without deforming or skewing, but it is troublesome to operate the attracting device. However, it takes a long time to transfer the data. Also,
In order to replenish seedlings during the transplanting work, the transplanter had to be stopped to operate the attracting device, which reduced the efficiency of the transplanting work.

[0008]

Further, the above-mentioned prior art "seedling transfer device in seedling planting machine" is one in which a seedling plate is placed on a plurality of rollers, and it is manually separated from the aligned seedlings placed on the seedling plate. It is good for cases, but it is necessary to remove the seedling plate with the device that automatically separates into individual seedlings, and if you place an aligned seedling such as a paper tube seedling on the roller and move it, the aligned seedling will break into small pieces. It becomes impossible to separate automatically.

The present invention solves the above problems,
Large and heavy aligned seedlings Aligned seedlings that are continuously separated and planted into individual seedlings by a transfer device that can be easily transferred from the seedling transport container to the seedling placement part of the transplanter without deforming or tilting. The purpose is to provide a transplant machine.

[0011]

A transfer device for aligned seedlings in a transplanter of the present invention is a transplanter for supplying aligned seedlings P to a loading / separating section 50 to separate and plant individual seedlings Pa. First belt for receiving the aligned seedlings P placed in the transport container C
36, and a second belt 33 on which the aligned seedlings P taken out from the seedling transport container C are placed and supplied to the separating unit 50.
Has a plurality of rows with a narrow width, and the upper surface of the first belt 36 supports the bottom surface of the aligned seedlings P through the holes Ch formed in the bottom surface of the seedling transport container C, and is aligned by the rotation of the first belt 36. The seedlings P are transferred onto the second belt 33.

[0012]

[Operation] In the present invention, since the upper surface of the first belt 36 supports the bottom surface of the aligned seedlings P through the holes Ch formed in the bottom surface of the seedling transportation container C, it is only necessary to place the seedling transportation container C in a predetermined position. Then, the aligned seedlings P are transferred to the first belt 36 of the transplanter.

Further, since the aligned seedlings P are transferred onto the second belt 33 by the rotation of the first belt 36, the first belt 36 is rotated by an appropriate means and the second belt is rotated. 33
It is possible to catch up with the aligned seedling P above. Then, when the aligned seedlings P are transferred onto the second belt 33, the empty seedling transport container C can be removed to prepare for the next seedling supply.

[0014]

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

As an aligned seedling P that can be separated into individual seedlings Pa,
It shows a paper tube seedling with a paper tube nursery container. This paper tube nursery container has a hexagonal column-shaped paper tube that opens up and down.
They are arranged in order and glued together with a water-soluble glue. When the soil is filled in this paper cylinder and sown to raise seedlings, the seedlings grow and become the aligned seedlings P of the paper cylinder seedlings. At the time of transplantation, an appropriate connection strength is maintained and the plan view has a rectangular shape.

A seedling transport container C for transporting the aligned seedlings P from the seedbed to the field and supplying it to the transplanter has a bottom Cr and a plate on one side of the long side, and round bar handles on the sides of both short sides. Is provided
The upper side is open, and one side surface of the long side is open as an opening Ca. Holes Ch that are long in the direction of the opening Ca are formed in the bottom surface Cr, and the holes Ch are provided in a plurality of rows corresponding to the first belt 36. Then, the aligned seedlings P are placed on the bottom surface Cr of the seedling transport container C and transported and supplied.

Next, a transplanter for separating and planting the aligned seedlings P into individual seedlings Pa will be described.

In FIG. 1, reference numeral 1 is a machine frame, and the machine frame 1 forms a substantially rectangular frame body in a plan view. And machine frame 1
A seedling placing section 10 is provided on the top. Lateral movement mechanism on the seedling placing section 10
20 and a vertical movement mechanism 30 are provided.

The lateral movement mechanism 20 includes a pair of rails 21 provided along the machine frame 1, a lateral movement mechanism frame 22 capable of reciprocating along the rails 21, and a pair of rails below the lateral movement mechanism frame 22. rail
It is composed of a shaft 26 provided in parallel with the rail 21 between the rails 21.

The lateral movement mechanism frame 22 is provided on a pair of rails 21, and guide rollers 24 that rotate in the direction of the rails 21 are provided on the four lower surfaces of the lateral movement mechanism frame 22 corresponding to the rails 21.
Further, the shaft 26 is engraved with a cylindrical cam in which the forward groove and the return groove are formed in an endless intersecting shape, and meshes with a protrusion provided from the lateral movement mechanism frame 22 to allow the shaft 26 to rotate. The lateral movement mechanism frame 22 is adapted to continuously reciprocate in the direction D1 in the drawing.

The lateral movement mechanism frame 22 of the lateral movement mechanism 20 is provided with a vertical movement mechanism 30 that moves in a direction orthogonal to the movement direction D1 of the lateral movement mechanism 20. And the second belt of the vertical movement mechanism 30
Aligned seedlings P are placed on 33 and the first belt 36, and a lateral movement mechanism is used.
The moving end of 20 is orthogonal to the moving direction D1 of the lateral moving mechanism 20.
Move intermittently in the D2 direction. Further, the horizontal movement mechanism frame 22 is inclined low in the movement direction D2 of the vertical movement mechanism 30.

The vertical moving mechanism 30 has pulleys 31, 32, 34, 35 in the horizontal moving mechanism frame 22 which are long in the moving direction of the horizontal moving mechanism 20 and parallel to each other at a height along the inclination of the horizontal moving mechanism frame 22. Provided, pulley
A second belt 33 is stretched between 31 and 32, and a plurality of rows of first belts 36 are stretched between the pulleys 34 and 35. Then, the first belt 36 is used as a seedling receiving port of the seedling placing section 10, and the second belt is used.
The separating portion 50 is provided on the pulley 31 side of 33. A roller 38 that contacts the upper back surface of the second belt 33 is provided between the pulleys 31 and 32, and a roller 39 that contacts the upper back surface of the first belt 36 is provided between the pulleys 34 and 35.

The lateral movement mechanism frame 22 moves laterally to the pulley 31, and the rotation of the shaft 26 is transmitted only at the moving end. The pulley 34 is connected to the sprocket wheels 41 and 42 via the one-way clutch 45 and the chain 43 so that the rotation of the pulley 31 is transmitted. And
At the moving end of the lateral movement mechanism 20, the pulleys 31 and 34 are rotated so as to rotate the second belt 33 and the first belt 36 by one row of the row of aligned seedlings P. In addition, the first belt 36 as a seedling receiving port is rotated in the D2 direction by the one-way clutch 45 regardless of the second belt 33 when the handle 44 is rotated, and the aligned seedlings P are transferred to the second seedling P when transferring the seedlings. Transferred to belt 33, second belt 33
It is possible to catch up with the preceding aligned seedling P above.

The first belt 36 has a plurality of narrow belts arranged at predetermined intervals, the overall lateral width is slightly narrower than the width of the aligned seedlings P, and the length in the direction of rotation is the same as that of the aligned seedlings P. Make it slightly longer than the short side. Further, the upper surface of the first belt 36 having a narrow width is projected on the bottom surface Cr through the hole Ch corresponding to the first belt 36 of the seedling transport container C. And the aligned seedling P
When the seedling transport container C on which is placed is placed in a predetermined position, the first belt 36 supports the bottom surface of the aligned seedling P through the hole Ch, and the aligned seedling P
Are transferred to the first belt 36.

The moving direction D2 of the vertical moving mechanism 30 outside the machine casing 1
The regulating body frame 2 is provided in the
Is provided, and a pair of freely rotating seedling regulation belts 5 are hung on the upper end of the regulation body shaft 3. The seedling regulation belts 5 are long on the left and right sides in the moving direction of the lateral movement mechanism 20, and an interval between the pair of rollers 52 is set between the inner ends of the pair of left and right seedling regulation belts 5. A belt driving pin is provided from the lateral movement mechanism frame 22 to the seedling regulation belt 5, and the belt driving pin passes through the hole of the seedling regulation belt 5. When the lateral movement mechanism 20 reciprocates, the seedling placing portion 10 of the seedling regulation belt 5 is moved. The side surface moves back and forth in the same direction.

Inside the lateral movement mechanism frame 22, on the seedling regulation belt 5 side, a pair of lateral regulation rollers 37 for regulating the aligned seedlings P are provided in contact with the side surfaces of the lateral movement mechanism 20 of the aligned seedlings P in the movement direction D1. .
The lateral regulation roller 37 freely rotates and rotates so as not to hinder the movement of the aligned seedlings P by the second belt 33.

A separating section 50 is provided outside the machine frame 1 at a central portion in the moving direction of the vertical movement mechanism 30 from the inside of the pair of seedling regulating belts 5 and above the inside of the pair of seedling regulating belts 5. Separation part frame 51
To provide.

A pair of shafts are provided below the separating portion frame 51, and a pair of elastic rollers 52, which serve as a separating rotary member, are fitted on the shafts. The roller 52 is a cylindrical sponge body, and the row of protrusions is provided on the surface, and the roller 52 is the second belt.
Positions are in contact with the upper and lower side surfaces of the aligned seedlings P placed on 33, the facing surfaces of the pair of rollers 52 are spaced closer than the diameter of the paper tube of the seedling Pa, and the facing surfaces of the pair of rollers 52 are aligned seedlings. It is rotated at the same speed in a direction away from P, and its peripheral speed is about 5 times the moving speed of the lateral moving mechanism 20.

The pair of rollers 52 first come into contact with the roller 52 on the side closer to the seedling Pa from which the aligned seedlings P are separated, and subsequently come into contact with the roller 52 on the far side. Then, the side surfaces of the aligned seedlings P are successively brought into contact with the rotating roller 52, so that the individual seedlings are continuously fed.
The seedlings Pa are separated into Pa, and the separated seedlings Pa are sandwiched by a pair of rollers 52 and fed to the opposite side of the aligned seedlings P.

A pair of flat belts 53 connected from the pair of rollers 52 are provided outward from the opposite side of the roller 52 from the seedling placing section 10 by a shaft provided below the separating section frame 51. Flat belt 53
Receives the individual seedlings Pa that have been separated and fed from the roller 52, sandwiches the middle part of the paper cylinder so as to project vertically and is transferred and fed out, and is planted in the main field by the planting device 60.

Next, the operation will be described.

The transfer of the aligned seedlings P to the seedling placing portion 10 at the start of the transplanting work is carried out with the horizontal moving mechanism frame 22 of the horizontal moving mechanism 20 at a predetermined moving end thereof, and the seedling transport container on which the aligned seedlings P are placed. Place C on the first belt 36. Then, the first belt 36 and the second belt 33 are rotated together to transfer the aligned seedlings P onto the second belt 33, and are further rotated to separate the seedlings at the front end of the aligned seedlings P. The row is brought into contact with the seedling regulation belt 5 to a position where it comes into contact with the pair of rollers 52.

Subsequently, the empty seedling transport container C is removed from the first belt 36, and the seedling transport container C on which the aligned seedlings P are placed is placed on the first belt 36 again. And handle
Only the first belt 36 is rotated by rotating 44 to catch up with the preceding aligned seedling P.

When the transplanter is advanced, the ground wheel 61 causes the shaft 26 to move.
When the horizontal movement mechanism frame 22 moves in the horizontal direction, the aligned seedlings P move in the horizontal direction, and the rollers 52, the flat belt 53, etc. rotate.

By the lateral movement of the lateral movement mechanism frame 22, the row of separated seedlings in the front row of the aligned seedlings P moves and sequentially contacts the front end of the roller 52. At this time, the revolving direction of the retreated roller 52 is the same as that of the moving direction of the aligned seedlings P, and the peripheral speed thereof is faster than the moving speed of the aligned seedlings P. It is sandwiched between the next row of seedlings and the roller 52 to be rolled, and while being rolled, it is moved at a speed higher than the moving speed of the aligned seedlings P, so that the seedlings Pa are sequentially separated.
The seedling Pa is separated into individual seedlings Pa by removing the connection part with the seedlings next to the seedlings and the next row of seedlings.

The seedling Pa separated by the rollers 52 is transferred by a pair of flat belts 53, and the seedling Pa fed from the pair of flat belts 53 is supplied to a planting device 60 and planted in the main field.

When the separation of the row of separated seedlings in the front row of the aligned seedling P is completed and the lateral movement mechanism frame 22 reaches the moving end, the aligned seedling P is seeded by the second belt 33 and the first belt 36. Only one row of the row is moved vertically, and then the lateral movement mechanism frame 22 laterally moves the aligned seedlings P in the opposite direction to start separation of the next row.

Further, the second belt 33 and the first belt 36 are similarly aligned at the moving end on the opposite side of the lateral moving mechanism frame 22.
Are intermittently moved and continuously separated into individual seedlings Pa and planted.

When the aligned seedlings P of the seedling placing section 10 are continuously separated and planted and the aligned seedlings P are lost on the first belt 36,
The empty seedling transportation container C is removed from the first belt 36, and the seedling transportation container C on which the aligned seedlings P are placed is placed on the first belt 36. Then, turn the handle 44 to rotate the first belt 36.
Only the circulating seedlings are made to catch up with the preceding aligned seedling P. At this time, to replenish the aligned seedlings P, the seedling transport container C is set to the first belt.
There is no need to stop the progress of the transplanter because it is only placed on the 36.

In the above examples, the paper seedlings in the paper tube raising container as the aligned seedlings P are shown, but the soil itself is hardened into a predetermined shape, or the inorganic fibers in which the seedling growing medium itself is connected in an orderly manner. Or polymer compounds, those that are separably connected to individual seedlings Pa, or individual seedlings
Pas may not be connected but arranged neatly.

Further, the handle 44 is turned to rotate the first belt 36.
Although it has been shown that the first belt 36 is rotated to catch up with the preceding aligned seedling P, the first belt 36 may be driven by an electric motor or the like to be rotated.

[0042]

According to the present invention, the top surface of the first belt supports the bottom surface of the aligned seedlings through the holes formed in the bottom surface of the seedling transport container, and the seedling transport container is simply placed in a predetermined position. Is transferred to the first belt of the transplanter, it is possible to transfer it without deforming or tilting the aligned seedlings.

In addition, the seedlings P aligned by the rotation of the first belt P
Can be transferred to the second belt, and the first belt can be rotated to catch up with the aligned seedlings on the second belt, so that the transplanting operation can be performed with high efficiency without interruption. Then, when the aligned seedlings are transferred to the second belt, the empty seedling transport container can be removed to prepare for the next seedling supply, so that the seedlings are continuously planted.

[Brief description of drawings]

FIG. 1 is a side view showing an example of an apparatus for transferring aligned seedlings in a transplanter.

FIG. 2 is a partially enlarged view in which a part of FIG. 1 is cut away.

FIG. 3 is a front view of FIG. 2;

FIG. 4 is an enlarged partial view of a part of FIG. 3 cut away.

FIG. 5 is a diagram showing an operating state of FIG.

FIG. 6 is a diagram showing another operating state of FIG. 4;

FIG. 7 is a view as seen in the direction of arrow A with a part of FIG. 3 cut away.

FIG. 8 is a partially enlarged view in which a part of FIG. 7 is cut away.

9 is a diagram showing a drive mechanism in which a part of FIG. 8 is cut away.

FIG. 10 is a plan view of a seedling transportation container.

FIG. 11 is a front view thereof.

FIG. 12 is a plan view of an aligned seedling placed on a seedling transport container.

FIG. 13 is a front view thereof.

[Description of sign]

 33 Second belt 36 First belt 50 Separation area C Seedling carrier Ch hole P Aligned seedling Pa Seedling

Claims (1)

(57) [Claims] 1. In a transplanter for feeding aligned seedlings to a separating section to separate and plant individual seedlings, a first belt for receiving the aligned seedlings placed in a seedling transport container, and taking out from the seedling transport container. A second belt for mounting the aligned seedlings and supplying it to the separating section is provided, and the first belt has a plurality of rows with a narrow width.
In the transplanter in which the upper surface of the belt of No. 2 supports the bottom surface of the aligned seedlings through the hole formed in the bottom surface of the seedling transport container and transfers the aligned seedlings to the second belt by the rotation of the first belt. Aligned seedling transfer device.