JP2001016914A - Sweet potato seedling-planting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a sweet potato seedling-planting machine enabling seedlings to be supplied with ordinary and easy work in standing posture so as to be set in a seedling-feeding mechanism and enabling work to efficiently be conducted by installing seedling-feeding belts in an inclined state to a specific direction. SOLUTION: In this sweet potato seedling-planting machine where endless belts 17a and 17b for feeding seedlings are stretched in a cross direction to the machine and seedlings on the belts 17a and 17b are inserted into the ground by being picked one by one with seedling-inserting openable nails 12 vertically moving, the belts are installed in an inclined state in such a way that their rear parts are lower than their front parts. Consequently, an operator can take out seedlings from a seedling-mounting stand without forcibly reaching forward for seedlings and can quickly supply them on the belts to plant sweet potato seedlings.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sweet potato seedling transplanter for transplanting sweet potato (sweet potato) seedlings, and more particularly to a seedling supply device.

[0002]

2. Description of the Related Art Sweet potatoes are prepared by laying seed potatoes in a seedbed to produce buds. After the stems have grown to about 30 cm, they are cut out and transplanted as seedlings. Transplanting is performed by inserting the root of the seedling into the ground with the cut end of the seedling facing downward. FIGS. 5 and 6 show a conventional example of a sweet potato seedling seedling machine in which this transplanting operation is mechanized.
Shown in This sweet potato seedling-inserting machine is of a walking type, in which a seedling is planted in a single row while moving along the top over a ridge. This sweet potato seedling machine is equipped with a planting mechanism 7 and a seedling supply mechanism 8. The operation of grasping and lowering the seedlings by the seedling claws 13 of the implantation mechanism 7, releasing the seedlings after inserting them into the ground, and ascending and grasping the seedlings is repeated. The seedling supply mechanism 8 supplies the seedlings one by one to the implantation mechanism 7. Reference numeral 36 denotes an endless seedling supply belt constituting the seedling supply mechanism 8, the upper surface of which is set horizontally, and rotates in a direction orthogonal to the running direction of the sweet potato seedling machine. The seedling supply belt 36 is provided with a V-shaped seedling cradle 37 on the outer periphery of the seedling cradle 37 at regular intervals, and a V-shaped bottom of each seedling cradle 37 with a clip spring seedling holder (not shown). ) Is provided. Then, while separating the seedlings stacked on the sweet potato seedling machine 1 one by one by hand, the root is inserted into a seedling holder located on the upper surface of the seedling supply belt 36 to set the seedlings. The seedlings move downward by the rotation of the seedling supply belt 36, reach the lowest point, and have a V-shaped seedling receiving base 37.
The seedlings are taken out from the seedling supply belt at the position where is facing downward, and the root of the seedlings is picked up by the cutting nails 13 and further lowered and transplanted to the ridges. The operator operates the sweet potato seedling seedling machine 1 at the same time as performing the work of setting the seedlings. By the way, since the stems of sweet potato seedlings have a weak waist and have branches and leaves, they tend to be entangled with each other when bundled and take time to separate them one by one, which is difficult to handle. Even if auxiliary workers are used to prepare seedlings, transport them, mount them on the seedling table, etc., they will not improve the effective work efficiency, and this work will limit the working speed of the entire seedling machine, and However, there was a problem that the planting speed was slow and the efficiency was low. Further, in the conventional sweet potato seedling insertion machine, since the seedlings are taken out downward at the lowermost end of the seedling receiving belt 36 by the seedling claws 13, the position of the upper surface of the seedling receiving conveyor 36 where the seedlings are to be set is high, and the operator is instructed. It is required to have an unreasonable posture such as stretching out.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a sweet potato seedling seedling machine which can easily supply a seedling to a seedling supply mechanism by a normal and easy standing operation and has a high working efficiency. .

[0004]

According to the present invention, the rear part of the seedling supply belt is installed to be inclined lower than the front part.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a side view of a sweet potato seedling seedling machine of the present invention, and FIG. 2 is a plan view of the same. The sweet potato seedling insulting machine 1 supports a machine body 4 by front left and right guide wheels 2 and rear right and left drive wheels 3.
A hydraulic package 40, a fuel tank 4
1. An irrigation tank 33 is provided, and an engine 5 and a transmission 6 are provided substantially at the center of the body 4. An implantation mechanism 7 at the rear center of the body 4 and a seedling supply mechanism 8 for supplying sweet potato seedlings to the implantation mechanism 7
a and 8b are arranged symmetrically. Seedling supply mechanism 8a, 8b
Is mounted at a right angle to the running direction of the sweet potato seedling machine 1, the upper part thereof is inclined rearward, the rear part is lower than the front part, and the seedling holders 21 are arranged diagonally upward. In the traveling of the sweet potato seedling machine 1, the output of the engine 5 is transmitted to the mission 6, the power is transmitted from the mission 6 to the drive wheel sprocket 3 a via the transmission chain, and the body 4 is driven by the drive wheels 3. The implantation mechanism 7 includes an implantation mission 9, an implantation crank 10, and a seedling rod 13. From the transmission 6 via the transmission chain and the implanted sprocket 9a,
The seedling transmission 9 is connected to the seeding mission 9 and includes a seeding crank 10 and a seedling rod 13 provided with a seedling nail 12 at the tip.
Is provided.

FIG. 3 is a perspective view of a main part showing the structure of the seedling supply mechanism, and FIG. 4 is a side view of the main part of the seedling supply mechanism 8a, 8b.
A seedling holder 21 for storing the seedlings is provided in front of the storage area. Seedling stand 2
In 1, a seedling container 22 in which a horizontally long flexible resin sheet is folded in a number of mountain valleys and put together in a bellows shape is placed, and seedlings are separately placed one by one in a valley portion of the bellows, and the root of the seedling is set. Store a large number of seedlings in a state where they are aligned in the foreground. The seedling supply mechanism 8a on the left side has two guide rollers 15 arranged in parallel at the top along the running direction of the sweet potato seedling machine 1, and the drive roller 16a is arranged in parallel with the rotation direction of the inner guide roller 15 obliquely downward. And two guide rollers 15 and a drive roller 16
An endless seedling supply belt 17a is stretched between a. The right seedling supply mechanism 8b is connected to the left seedling supply mechanism 8a.
And symmetrically. That is, two guide rollers 15 are arranged in parallel at the top along the running direction of the sweet potato seedling machine 1,
A drive roller 16b is disposed in parallel with the inner guide roller 15 obliquely downward in the rotation direction, and an endless seedling supply belt 17b is stretched between the two guide rollers 15 and the drive roller 16b. The seedling supply belts 17a and 17b rotate toward the center of the machine body 4, respectively. Each belt is 2
The space between the guide rollers 15 and 15 is horizontal, and the guide rollers 15 descend from the inner guide roller 15 toward the drive rollers 16a and 16b.
6b, the two are closest to each other, and at this position, they face the front of the seedling claw 12 of the seedling rod 13. Along the slope descending portion between the left and right seedling supply belts 17a, 17b,
A guide plate 34 having a V-shaped cross section is fixed to the machine frame at regular intervals. In the horizontal part of the seedling supply belt 17a, 17b,
Along the rear side, a seedling guide 46 having a standing side is provided. A guide disk 35 is integrally attached to the ends of the roller shafts 30 and 31 of the drive rollers 16a and 16b. Guide disk 3
Reference numeral 5 denotes an outer diameter exceeding the diameter of the drive rollers 16a and 16b, and a gap is provided between both guide disks 35 through which the roots of the seedlings pass. Further, a seedling support arm 44 is provided behind the drive rollers 16a and 16b, one end of which is rotatably supported on the machine frame, and is urged upward by a spring, so that an arm stopper 4 is provided.
5 and the other end is driven by the drive rollers 16a, 16a.
b and guide disc 35.

On the outer periphery of the seedling supply belts 17a and 17b,
A large number of seedling holding pieces 18 are attached at equal intervals along each one side edge, and in front of the rotation direction of each seedling holding piece 18,
The flexible partition lug 19 stands in a plate shape perpendicular to the rotation direction of the seedling supply belts 17a and 17b. Further, each seedling holding piece 1 is provided on the inner circumference of the seedling supply belts 17a and 17b.
8 through the seedling supply belts 17a, 17b,
7 between the projecting claws 47 and the seedling supply belt 1.
A plurality of projecting claws 47 projecting from 7a and 17b are arranged at equal intervals. Further, the driving rollers 16a and 16b are formed with a plurality of concave grooves 48 which engage with the protruding claws 47 on the outer periphery thereof. The guide roller 15 includes a driving roller 16.
Step recesses (not shown) are formed at positions facing the protruding claws 47a and 16b, and collision with the protruding claws 47 is avoided by rotation of the seedling supply belts 17a and 17b. The seedling supply belts 17a, 17b are driven by the drive rollers 16a, 16b in advance so that the seedling holding pieces 18 are respectively shifted by a half pitch.
, So that the seedling holding pieces 18 and the partition lugs 19 do not collide with each other. Further, the driving rollers 16a, 16b
Has a plurality of recessed grooves 4 on its outer periphery which mesh with the protruding claws 47.
8 is formed. At the same time, a step recess (not shown) is formed on the guide roller 15 at a position facing the protruding claws 47 of the drive rollers 16a and 16b, and the seedling supply belts 17a and 17b are formed.
By the rotation of 7b, collision with the protruding claws 47 is avoided. Further, the seedling supply belts 17a and 17b are engaged with the drive rollers 16a and 16b so that the seedling holding pieces 18 are shifted by a half pitch in advance, respectively, so that the seedling holding pieces 18 and the partition lugs 19 do not collide with each other. A plurality of seedling presser springs 43 are arranged along the rear edge of the guide plate 34, a plurality of pins are erected on the machine frame or on the side surface of the guide plate 34, and a helical spring-like seedling presser spring 43 is attached to the pins. One end of the seedling holding spring 43 is fixed to the machine frame, and the other end is connected to the seedling supply belt 17.
The seedlings 18a are extended in the rotation direction, are looked into the slit 18a on the upper surface of the seedling holding piece 18, and are pressed toward the groove bottom of the seedling holding piece 18. In this state, the root of the seedling is sandwiched in the holding groove 20 of the seedling holding piece 18, the tip of the seedling is supported by the partition lug 19, and the seedling supply belts 17a, 17b are rotated to rotate.
The seedling holding spring 4 passes through the slit 18a of the seedling holding piece 18.
3, the seedling is pressed into the holding groove 20 of the seedling holding piece 18, and is securely held even while the seedling supply belts 17a and 17b are rotating.
The seedling claw 12 of the seedling rod 13 is viewed between the drive rollers 16a and 16b, and faces the root of the seedling sandwiched between the left and right seedling holding pieces 18.

With the above arrangement, when planting seedlings in the furrow, a driver who operates a sweet potato seedling insulting machine and also serves as a seedling supply operation;
An operator who supplies sweet potato seedlings to one of the seedling supply mechanisms 8a and 8b is arranged. The left and right workers respectively grab the root of the seedling from the seedling container 22 of the seedling holder 21, pull out the root of the seedling against the seedling guide 46, sandwich the root of the seedling in the holding groove 20 of the seedling holding piece 18, Is accommodated by the partition lug 19 so as not to protrude. When the seedling supply belt 17a rotates and the seedling holding piece 18 holding the seedling approaches the inclined descending portion from the upper guide roller 15a to the drive roller 16a,
The holding groove 20 of the seedling holding piece 18 is opened downward, and one end of the seedling holding spring 43 sequentially presses the root of the seedling through the slot 18a of the seedling holding piece 18 to prevent the seedling of the seedling from falling. I do. Next, the leading end of the partition lug 19 provided forward of the seedling holding piece 18 in the rotation direction slides on the guide plate 34 and rotates while bending along the surface of the guide plate 34 to wrap and support the tip of the seedling. By wrapping the tips of the seedlings, it is possible to prevent dripping of the leaves of the seedlings and catching of the leaves, thereby preventing damage to the seedlings. The seedling holding piece 18 holding the seedling,
When reaching between the driving rollers 16a and 16b, the root of the seedling is supported only by the seedling holding spring 43, and the root of the seedling is driven by the guide disk 35 which rotates simultaneously with the driving roller shafts 30, 31. 31 and the seedling rod 13
Of the seedling claw 12 of FIG. In this state, the cutting seedling 12 that descends in synchronism further descends across the root of the seedling, pulls down the support arm 44 to extract the seedling, and lowers the seedling rod 13 so that the seedling is inserted into the ridge from the cutting seedling 12. Then, the seedling supply belt 17b rotates half a pitch later, and the seedling is brought to the center by the guide disk 35, and coincides with the descending locus of the cutting nail 12 of the cutting rod 13. At the same position, the cutting seedling 12 that descends sandwiches the root of the seedling and descends further.
The support arm 44 is pulled down to extract the seedling, and
The seedlings are planted in the ridges from the cutting nails 12 by descending. Further, by mounting the seedling supply mechanisms 8a and 8b with the upper portions inclined backward, the left and right workers can easily pull out the seedlings from the seedling placing table 21 without leaning on the seedling supply mechanisms 8a and 8b and pinch them. It can be inserted into the groove 20. In addition, since the seedling supply mechanisms 8a and 8b are arranged at a low inclination rearward, the operator pulls out the seedlings from the bottom of the valley of the seedling container 22 and pulls out the seedlings, and leaves the leaf portion as it is as the partition lug 19. It is possible to keep the work without changing the position of the leaf, and to increase the work efficiency.

[0009]

According to the present invention, the seedling placing table is disposed obliquely above the seedling supply mechanism, and the front part of the seedling supply mechanism is attached to the rear with a low inclination, so that the operator does not have to reach forcibly. The seedlings can be taken out from the seedling holder and can be quickly supplied to the seedling supply belt to plant sweet potato seedlings.
In addition, by mounting the seedling stand at an angle above the seedling supply belt, simply grasping the seed root of the seedling from the seedling stand and pulling it out, attach it to the seedling holding piece through the partition lugs, and It is possible to increase the efficiency of the cutting operation by avoiding overhanging.

[Brief description of the drawings]

FIG. 1 is a side view of a sweet potato seedling seedling machine of the present invention.

FIG. 2 is a plan view of the sweet potato seedling seedling machine of the present invention.

FIG. 3 is a perspective view of a main part showing a configuration of a seedling supply mechanism of the present invention.

FIG. 4 is a side view of the seedling supply mechanism.

FIG. 5 is a side view of a conventional sweet potato seedling plant.

FIG. 6 is a plan view of a conventional sweet potato seedling plant.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sweet potato seedling seedling machine 2 Guide wheel 3 Drive wheel 3a Drive wheel sprocket 4 Body 5 Engine 6 Mission 7 Implantation mechanism 8, 8a, 8b Seedling supply mechanism 9 Implantation mission 9a Implantation sprocket 10 Implantation crank 11 Connecting shaft 12 Reference Signs List 13 seedling rod 14 clutch mechanism 15 guide rollers 16a, 16b drive rollers 17a, 17b seedling supply belt 18 seedling holding piece 19 partitioning lug 20 holding groove 21 seedling holder 22 seedling container 30 drive roller shaft right 31 drive roller shaft left 33 irrigation tank 34 Guide plate 35 Guide disk 36 Seedling supply conveyor 37 Seedling receiving stand 41 Hydraulic package 42 Fuel tank 43 Seedling holding spring

Claims (1)

[Claims] An endless seedling supply belt is stretched in the lateral direction of the machine body, and the seedling on the seedling supply belt is picked up one by one by an openable and closable cutting claw that moves up and down, and is inserted into the ground. A sweet potato seedling installation wherein the rear part of the seedling supply belt is installed to be inclined lower than the front part.