JP2000333515A - Seedling planting machine for sweet potato - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling planting machine for sweet potato having high work efficiency by smoothly increasing the feeding speed of seedling to a seedling feeding mechanism of the seedling planting machine. SOLUTION: Seedling feeding mechanisms 8 rotating from the right and left toward the central planting mechanism 7 are symmetrically arranged perpendicular to the moving direction of a seedling planting machine 1 for sweet potato. Seedlings are supplied to the planting mechanism 7 alternately from the right and left seedling feeding mechanisms 8 interlocking with the reciprocating motion of a seedling insertion rod 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to sweet potato (sweet potato).
The present invention relates to a sweet potato seedling transplanter for transplanting seedlings.

[0002]

2. Description of the Related Art Sweet potatoes are obtained by laying seed potatoes in a seedbed to produce buds, growing them to grow their stalks to about 30 cm or more, cutting them out, and transplanting them as seedlings. When transplanting, the seedlings are embedded so that the cut ends of the seedlings face downward and the bases of the stems are inserted into the ground. FIGS. 8 and 9 show a conventional example of a sweet potato seedling incubator in which this transplanting operation is mechanized. This device comprises an implanting mechanism 7 for reciprocating up and down a seedling rod 13 holding a seedling and implanting it.
And a seedling supply mechanism 8 for supplying seedlings to the implantation mechanism 7. Numeral 36 denotes an endless seedling receiving conveyor of the seedling supply mechanism 8, which rotates in a direction orthogonal to the traveling direction of the sweet potato seedling machine. Seedling receivers 37 each having a V-shaped opening at the outer periphery of the seedling receiver conveyor 36 are arranged at regular intervals.
7 is provided with a clip spring seedling holder (not shown) at the V-shaped bottom. The seedlings loaded on the sweet potato seedling machine 1 are supplied to the seedling supply mechanism 8 while the worker separates them one by one by hand, the stock of the seedlings is held in the clip spring seedling holder, and another worker sends the seedlings to the sweet potato seedling machine. One plant is being planted by driving one. By the way, this sweet potato seedling has a long and narrow stem and is easy to bend,
In addition, leaves were attached, and they were entangled and it took time to supply them to the seedling supply mechanism 8, and the supply of the seedlings affected the speed of the planting operation and was inefficient.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a sweet potato seedling seedling machine which can speed up the supply of seedlings to a seedling supply mechanism smoothly and has high working efficiency.

[0004]

According to the present invention, a seedling supply mechanism that rotates endlessly from the left and right toward the central implanting mechanism is installed symmetrically at right angles to the traveling direction of the sweet potato seedling machine. In conjunction with the reciprocating movement, the seedlings are alternately supplied from the left and right seedling supply mechanisms to the planting mechanism.

[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 insulting machine of the present invention, and FIG. 2 is a plan view thereof. The sweet potato seedling machine 1 is provided with front and left guide wheels 2 and rear and left and right drive wheels 3 to support a machine body 4. A hydraulic package 41, a fuel tank 42, and an irrigation tank 33 are provided in front of the machine body 4. An engine 5 and a transmission 6 connected to the engine 5 are disposed substantially at the center of the body 4. Behind the machine body 4, an implantation mechanism 7 and seedling supply mechanisms 8a and 8b for supplying seedlings to the implantation mechanism 7 are symmetrically arranged. 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. The transmission 6 is connected to the implant mission 9 via a transmission chain and an implant sprocket 9a. The implantation mission 9 is provided with an implantation crank 10 and a seedling rod 13 having an implantation claw 12 at the tip.

FIG. 3 is a perspective view of a main part showing the structure of a seedling supply mechanism, and FIG. 4 is a side view of the main part. Seedling supply mechanism 8 on left side
a is a drive roller formed on the drive roller shaft left 31 in parallel with the two guide rollers 15 at the top along the traveling direction of the sweet potato seedling machine 1 and obliquely below the inner guide rollers 15. An endless rubber belt 17a is stretched between the two guide rollers 15 and the drive roller 16a. A seedling guide rail 46 is provided along the rubber belt 17a between the two guide rollers 15, and the tip of the root of the seedling is abutted when the seedling is mounted. Similarly, the right seedling supply mechanism 8b also has two guide rollers 15 arranged in parallel, and a drive roller 16b formed on the drive roller shaft right 30 in parallel with and obliquely below the inner guide roller 15; An endless rubber belt 17b is stretched between the two guide rollers 15 and the drive roller 16b. Behind the seedling supply mechanisms 8a and 8b, seedling guide rails 46 are provided along the rubber belts 17a and 17b between the two guide rollers 15, respectively. The seedlings are positioned against the tip of the plant. The drive roller 16a and the drive roller 16b are arranged close to each other at symmetrical positions, and the drive rollers 16a, 1b are located behind the drive rollers 16a, 16b.
A guide disk 35 having a diameter larger than the outer diameter of 6b is provided, and a gap is provided between the guide disks 35 such that the root of the seedling passes. Guide disk 35 and drive roller 16a
During this time, the tip of the seedling supporting arm 44 is urged upward by a spring (not shown) toward the space between the guide disks 35 from below. Seedling support arm 44 is provided with arm stopper 4
5, the tip of the seedling is pinched between the guide discs 35 to support the root of the seedling, and the implantation claws 12 of the seedling rod 13 grasp the root of the seedling, and when the seedling rod 13 descends, a spring (shown in FIG. The seedlings are released by lowering the tip against them. The driving rollers 16a,
16b are connected by the clutch mechanism 14 so as to be inverted with each other, and the rubber belts 17a and 17b are connected to the seedling rod 1 respectively.
Drive toward 3.

The rubber belts 17a and 17b are provided with a plurality of seedling holding rubbers 18 at regular intervals on the rear side edges of the outer periphery thereof, and the rubber belts 17a and 17b except for the rear side edges are provided.
The seedling holding rubber 18 is interposed at right angles to the running direction of the rubber belts 17a, 17b around the outer periphery of the seedling 17b.
a and 19b are erected in parallel. The seedling holding rubber 18 is provided with a seedling holding slit 20 opened in the traveling direction of the rubber belts 17a and 17b, and a slit 18a provided in an upper portion thereof in parallel with the traveling direction. Further, left and right seedling supply mechanisms 8a,
Rubber belts 17a, 17b descending from above during 8b
A guide plate 34 having a V-shaped cross section is provided along
4, a plurality of helical springs 43 are arranged toward the rubber belts 17a and 17b, one end of the helical springs 43 is fixed to the guide plate 34, and the other ends of the rubber belts 17a and 17b.
b in the direction of travel of b, and
8a, and pressed toward the rubber belts 17a, 17b. As the rubber belts 17a, 17b run, the tips of the seedling partition plates 19a, 19b bend along the surface of the guide plate 34 to support the tips of the seedlings, and the vine spring 43 passes through the slits 18a of the seedling holding rubber 18 to allow the seedlings to move. Hold down the stock company. Rubber belts 17a of left and right seedling supply mechanisms 8a, 8b,
17b, the positions of the seedling holding rubbers 18 are arranged so as to be shifted by a half pitch in a stretched state, and the implantation claws 12 of the seedling rod 13 are viewed between the left and right drive rollers 16a, 16b, and the rubber belts 17a, The seedlings of the seedlings sandwiched between the seedling holding rubbers 18b are alternately arranged so as to face the implantation claws 12 of the seedling rods 13. Auxiliary seedling holders 21 are provided in parallel to the front of the left and right seedling supply mechanisms 8a and 8b, respectively.
1, the seedling container 22 is placed. The seedling container 22 is formed by folding a horizontally long flexible resin sheet into a number of chevron shapes to form a bellows,
At the bottom of the valley, put the stems of the seedlings one by one in front.

FIG. 5 is a power transmission system diagram of the seedling supply mechanism of the present invention. The power is transmitted from the engine 5 to the mission 6, and the power is transmitted from the sprocket of the mission 6 to the implant sprocket 9a of the implant mission 9 via the transmission chain. Furthermore, it is connected to the clutch mechanism 14 from the implantation mission 9 via a connection shaft 11 having joints that can be bent at both ends. FIG. 6 is a configuration diagram of the implantation mechanism. The implant transmission 9 is connected to the implant crank 10 via a speed reduction mechanism, and an implant claw 12 is attached to the tip of the implant crank 10.
Is provided. At the tip of the implantation nail 12, a seedling holding portion (not shown) for holding the stem portion of the seedling is provided. By the power of the implantation mission 9, the implantation crank 10 reciprocates intermittently reciprocatingly moves the implantation claw 12 at the tip of the implantation claw 12 in a vertically long elliptical orbit, and moves the stem portion of the seedling sandwiched between the implantation claw 12. We plant in ridge sequentially. In synchronization with the reciprocating movement of the implantation crank 10, the coupling mechanism 11 rotates the clutch mechanism 14 to intermittently operate the seedling supply mechanisms 8 a and 8 b, thereby supplying seedlings to the implantation claws 12.

FIG. 7 is a sectional view of a main part showing the structure of the clutch mechanism. The clutch mechanism 14 inserts the drive roller shaft right 30 and the drive roller shaft left 31 in parallel in the housing 23 at a fixed interval, and rotatably holds the housing 23 via an oil seal and a bearing. . The large gear 24 and the middle gear 25b are integrally fixed at a fixed interval to the tip of the drive roller shaft right 30 in the housing 23. Next, the drive roller shaft left 31 has 25b in the gear of the drive roller shaft right 30.
The gear 25a provided with a plurality of engaging pin holes 26 on the side surface is fixed in accordance with.

Further, an auxiliary roller shaft 32 is rotatably mounted on the left end of the drive roller shaft 31 via a recess.
A key 40 extending in the axial direction is provided on the outer periphery of the auxiliary roller shaft 32. A sleeve 39 is provided on the outer periphery of the auxiliary roller shaft 32, a key groove 38 for engaging with the key 40 is provided on the inner periphery of the sleeve 39, the key 40 is fitted into the key groove 38, and the sleeve 39 is attached to the auxiliary roller shaft. 32, and is slidably held in the axial direction of the auxiliary roller shaft 32. The clutch plate 28 and the small gear 29 are integrally fixed at a fixed interval on the outer periphery of the sleeve 39. Clutch plate 28
Instead of separately forming the gear 39 and the
The clutch plate 28 is integrally formed at one end of the
A gear wheel 29 may be press-fitted and fixed to the other end of 9. A plurality of engaging pins 27 are erected on the side of the clutch plate 28,
It is arranged so as to face the plurality of engagement pins 27 of 5a.
25b of gears on the right 30 of the drive roller shaft and 3 on the left of the drive roller shaft
One gear 25a is always kept in a meshing state. The distal end of the auxiliary roller shaft 32 projects out of the housing 23 and is connected to the connection shaft 11 via a speed reduction mechanism.

The sleeve 39 is slid along the auxiliary roller shaft 32 by the clutch mechanism, and the plurality of engagement pins 27 of the clutch plate 28 are fitted into the engagement pin holes 26 of the gear 25a. The auxiliary roller shaft 32 rotates counterclockwise, and the drive roller shaft left 31 rotates counterclockwise via the clutch plate 28. Further, since the middle gear 25a and the middle gear 25b mesh with each other, the driving roller shaft right 30 connected to the middle gear 25b rotates clockwise at the same speed. In this state, the rubber belts 17 of the left and right seedling supply mechanisms 8a and 8b are used.
a and 17b rotate toward the cutting rod 13 respectively.

The sleeve 39 is slid along the auxiliary roller shaft 32 by the clutch mechanism, and the clutch plate 28 and the
When the engagement of 5b is released, the left drive roller shaft 31 stops rotating,
Then, the small gear 29 and the large gear 24 are meshed with each other, and the driving roller shaft right 30 is rotated clockwise.
The number of rotations of the drive roller shaft right 30 is reduced in inverse proportion to the ratio of the number of teeth. For example, if the ratio of the number of teeth between the small gear 29 and the large gear 24 is 1: 2, the rotation speed of the drive roller shaft right 30 is 1/2.
Down to. In this state, the seedling supply mechanism 8a is stopped, so that the seedlings are mounted by one worker by the seedling supply mechanism 8b, and the seedling supply mechanism 8b supplies the seedlings to the implantation claws 12 at 1/2 speed. The seedlings are planted at a speed of 1/2.

When the sweet potato seedling machine is started to operate, the rubber belts 17a, 17b of the left and right seedling supply mechanisms 8a, 8b are rotated counterclockwise and clockwise, respectively, at the same speed, and left and right seedling supply is performed by two left and right workers. Attach seedlings to mechanisms 8a and 8b,
By alternately supplying seedlings from the right and left seedling supply mechanisms 8a and 8b to the seedling rod 13, the seedling supply capacity becomes twice as large as that of the conventional sweet potato seedling machine, and the operating speed of the seedling rod 13 is increased. Can be doubled as compared with the conventional method, and the seedling planting operation can be performed promptly. If the number of seedlings to be seeded is small, or if two workers cannot supply seedlings, the clutch mechanism 14 switches the connection to stop the left seedling supply mechanism 8a and rotate the right seedling supply mechanism 8b. The speed can be reduced to half to keep it within the range that can be worn by one worker, and the running speed of the sweet potato seedling transplanter 1 can also be reduced to half to perform the planting work according to the supply capacity of the seedlings. it can. In addition, after the seedlings were planted from the irrigation tank 33 mounted on the sweet potato seedling transplanter 1, water was poured toward the place to improve the rooting of the seedlings, and the seedlings 13 were poured into the planting claws 12 and adhered. The mud is washed away and stable planting work can be continued.

As described above, when planting seedlings in a field by the sweet potato seedling transplanter 1 of the present invention, a driver who operates the plant and two workers who supply the seedlings to the seedling supply mechanism 8 on the left and right sides thereof are arranged. Then, the left and right workers grasp the stem of the seedling from the valley bottom of the seedling container 22 of the auxiliary seedling holder 21 and take out the stem of the stem in the seedling holding slit 20 of the seedling holding rubber 18. It is inserted between the seedling partition plates 19a and 19b and attached so as not to protrude. When the seedling supply mechanisms 8a and 8b rotate and the seedlings sequentially reach the transfer position of the implantation nails 12, the implantation nail 9 of the cutting rod 13 which descends synchronously by the implantation mission 9 grasps the stem portion of the seedling. Then, the seedlings are transferred away from the seedling holding rubber 18. With the power of the implantation mission 9, the seedling rod 13 descends its implantation claw 12 to plant a seedling in the furrow.

[0015]

According to the present invention, the sweet potato seedling machine is provided with two seedling supply mechanisms on the left and right sides centering on the seedling rod, and an operator is arranged in each seedling supply mechanism to supply the seedlings respectively. The seedling supply mechanism alternately supplies seedlings to one seedling rod, so that the seedling supply capacity can be increased, the operation of the implantation mechanism can be accelerated in accordance with the seedling supply capacity, and the seeding ability of the sweet potato seedling machine can be increased.

[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 power transmission system diagram of the seedling supply mechanism.

FIG. 6 is a configuration diagram of an implantation mechanism.

FIG. 7 is a sectional view of a main part showing a structure of a clutch mechanism.

FIG. 8 is a side view of a conventional sweet potato seedling seedling machine.

FIG. 9 is a plan view of a conventional sweet potato seedling seedling machine.

[Description of Signs] 1 Sweet potato seedling seedling machine 2 Guide wheel 3 Drive wheel 3a Drive wheel sprocket 4 Body 5 Engine 6 Mission 7 Planting mechanism 8, 8a, 8b Seedling supply mechanism 9 Planting mission 9a Planting sprocket 10 Planting crank 11 Connecting shaft 12 Implant claw 13 Inserting rod 14 Clutch mechanism 15 Guide roller 16 Drive roller 17a, 17b Rubber belt 18 Seedling pinching rubber 18a Slotting 19a, 19b Seedling partition plate 20 Seedling holding slit 21 Auxiliary seedling holder 22 Seedling container 23 Housing 24 Large gear 25a, 25b Middle of gear 26 Engagement pin hole 27 Engagement pin 28 Clutch plate 29 Small gear 30 Drive roller shaft right 31 Drive roller shaft left 32 Auxiliary roller shaft 33 Irrigation tank 34 Guide plate 35 Guide disk 36 Seedling stand Conveyor 37 Seedling cradle 38 Keyway 39 Sleeve 40 Key 41 Hydraulic package 42 Fuel tank 43 Vine spring 44 Seedling support arm 45 Arm stopper 46 Seedling guide rail

Claims (1)

[Claims] 1. A sweet potato seedling machine comprising a planting mechanism for planting sweet potato seedlings by intermittently reciprocating up and down a seedling rod and a seedling supply mechanism for supplying seedlings to the planting mechanism. A seedling supply mechanism that rotates endlessly from the left and right of the seedling machine toward the central implantation mechanism is symmetrically installed, and interlocks with the reciprocation of the seedling rod, and alternately from the left and right seedling supply mechanisms to the implantation mechanism. A sweet potato seedling seedling machine that supplies seedlings.