JP2001016919A - Seedling-feeder of sweet potato seedling-planting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling-feeder for a sweet potato seedling-planting machine improved in its configuration in such a way that a time-consuming job of setting seedlings in a seedling-feeding mechanism can be done by two persons. SOLUTION: A seedling-mounting part of this seedling-feeder features being formed as follows: two belts 17 each for feeding seedlings are arranged on both sides of a seedling-planting nail 12 and are each turned around toward the central part of a machine 4; many clips 18 each for gripping at least one seedling are fixed at an equal interval along one side margin on each belt 17; and a flexible partition lug 19 is made to stand in front of every clip 18 in terms of the direction of its rotation. The seedling-feeder also features that each clip 18 has a gripping groove 20 opening toward the direction of rotation of each belt 17, the bottom of the groove 20 is located on the outer side from the belt 17 and the clips 18 of the right and left belts 17 alternately pass in front of the nail 12 as the belts 17 are turned around.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for transplanting sweet potato (sweet potato) seedlings, and more particularly to an apparatus for feeding seedlings.

[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. The seedlings are skewed one by one so that the cut ends of the seedlings face downward and the roots of the seedlings are inserted into the ground.
FIGS. 6 and 7 show a conventional example of a sweet potato seedling seedling machine in which this transplanting operation is mechanized. This device is of a walking type, and is adapted to plant a single seedling while moving along the top over a ridge. This device is equipped with an implantation mechanism 7 and a seedling supply mechanism 8. The implantation mechanism 7 repeats the operation of grasping the seedlings by the seedling claws 13, descending, releasing the seedlings after being inserted into the ground, and ascending to grasp the seedlings. The seedling supply mechanism 8 supplies the seedlings one by one to the implantation mechanism 7. Three
Reference numeral 6 denotes an endless seedling supply belt constituting the seedling supply mechanism 8, which rotates in a direction orthogonal to the running direction of the sweet potato seedling insertion machine 1. On the seedling supply belt 36, seedling trays 37 each having a V-shaped opening on the outer periphery thereof are arranged at regular intervals, and a clip spring seedling holder (not shown) is provided on the V-shaped bottom of each seedling tray 37. ) Is provided.
Then, while the seedlings stacked on the sweet potato seedling machine 1 are separated one by one by a worker, the stock is inserted into a seedling holder and the seedlings are set. The seedlings are moved downward by the rotation of the seedling supply belt 36, reach the lowest point, and take out the seedlings from the seedling supply belt at the position where the V-shaped seedling receiving tray 37 faces downward. The seedlings of the seedlings are pinched and lowered further to be transplanted to the ridge. 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 stand, 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.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has been improved by improving a machine so that two persons can perform a troublesome work of setting a seedling in a seedling supply mechanism. The purpose is to improve.

[0004]

According to the first aspect of the present invention, two seedling supply belts are provided on the left and right sides of the cutting seedling, and these seedling supply belts are configured to rotate toward the center of the machine body. . Then, many seedling holding pieces are attached at equal intervals along one side edge of the seedling supply belt. These seedling holding pieces are formed with holding grooves that open in the direction of rotation of the seedling supply belt, and the depths of the grooves are located outside the seedling supply belt. The seedling holding pieces of the belt are alternately passed in front of the cutting nails.
According to a second aspect of the present invention, in addition to the first aspect, a flexible partitioning lug is provided in front of the seedling holding piece in a direction perpendicular to the rotation direction of the seedling supply belt. According to the invention of claim 3, in the invention of claim 1 or 2, a slit is formed on the upper surface of the seedling holding piece along the rotation direction of the seedling supply belt and continues to the depth of the groove, so that the lower part of the seedling supply belt is inclined. A plurality of seedling presser springs are fixed to the machine frame so as to be along, and are pressed from above through the slits of the seedling holding pieces by the seedling presser springs.

[0005]

Embodiments 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.
Is a plan view thereof. 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 41 and an irrigation tank 33 are provided at the front of the body 4, and an engine 5 and a transmission 6 are provided substantially at the center of the body 4. An implantation mechanism 7 is provided in the center of the rear part of the body 4, and two seedling supply mechanisms 8 a and 8 b are provided on the left and right of the implantation mechanism 7. The traveling of the sweet potato seedling machine 1
The output of the engine 5 is transmitted from the mission 6 to the driving wheel sprocket 3a of the driving wheel 3. The implantation mechanism 7 includes an implantation mission 9, an implantation crank 10, and a seedling rod 13, and transmits the output of the engine 5 from the mission 6 to the implantation sprocket 9 a to drive the implantation mission 9.
The implantation mission 9 is provided with an implantation crank 10 and a seedling rod 13 having a seedling claw 12 at the tip.

FIG. 3 is a perspective view of a main part of the seedling supply mechanism, and FIG. 4 is a side view of the main part. A seedling stand 21 for storing seedlings is provided in front of the seedling supply mechanisms 8a and 8b. A seedling container 22 in which a horizontally long flexible resin sheet is folded into many mountain valleys and folded into a bellows shape is placed on the seedling holder 21, and the seedlings are separately placed one by one in advance in the bellows valley portion. A large number of seedlings are stored with the stocks in front. Seedling supply mechanism 8 on left side
a, two guide rollers 15 are arranged in parallel at the top along the running direction of the sweet potato seedling machine 1, and the inner guide rollers 1
5, a drive roller 16a is disposed in parallel diagonally below the rotation direction, and an endless seedling supply belt 17a is stretched between the two guide rollers 15 and the drive roller 16a.
The right seedling supply mechanism 8b is configured symmetrically with the left seedling supply mechanism 8a. That is, two guide rollers 15 are arranged in parallel at the upper part along the running direction of the sweet potato seedling machine 1, and the driving rollers 16 are disposed obliquely downward in the rotation direction of the inner guide roller 15.
b are arranged in parallel, and an endless seedling supply belt 17b is stretched between two guide rollers 15 and a drive roller 16b. The seedling supply belts 17a and 17b rotate toward the center of the machine body 4, respectively. Each belt is horizontal between the two guide rollers 15 and 15 and descends from the inner guide roller 15 toward the drive rollers 16a and 16b.
The two are closest to each other between the drive roller 16a and the drive roller 16b around the machine body 4, and face the front of the cutting nail 12 of the seedling rod 13 at this position. A guide plate 34 having a V-shaped cross section is fixed to the machine frame along the descending portion between the left and right seedling supply belts 17a and 17b at regular intervals. At the horizontal portions of the seedling supply belts 17a and 17b, seedling guides 46 having upright sides are provided along the rear sides, respectively.
A guide disk 35 is attached to the ends of the roller shafts 30, 31 of the drive rollers 16a, 16b. The guide disk 35 has an outer diameter larger than the diameter of the drive rollers 16a and 16b, and a gap is provided between the two guide disks 35 through which the roots of the seedlings pass. further,
A seedling support arm 44 is provided between the drive rollers 16a and 16b and the guide disk 35, one end of which is pivotally supported by the machine frame, and is urged upward by a spring to provide an arm stopper 4.
5, and the other end is viewed between the drive rollers 16a and 16b and the guide disk 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 one side edge of each seedling, and a flexible partitioning lug 19 is attached to the seedling supply belts 17a, 17 in front of the rotation direction of each seedling holding piece 18.
It stands up so as to be orthogonal to the rotation direction of b. Further, on the inner periphery of the seedling supply belts 17a, 17b, the projecting claws 47 project from the respective seedling holding pieces 18 through the seedling supply belts 17a, 17b. Further, between the projecting claws 47, a plurality of projecting claws 4 projecting from the seedling supply belts 17a and 17b.
7 are arranged at equal intervals. Further, the driving rollers 16a, 1
A plurality of concave grooves 48 meshing with the protruding claws 47 are formed in the outer periphery of 6b. At the same time, the guide roller 15
A stepped concave portion (not shown) is formed at a position of the drive rollers 16a and 16b facing the protruding claw 47 to avoid collision with the protruding claw 47. 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, and the seedling holding pieces 18 and the partition lugs 19 collide with each other during rotation. Don't do it. At the inclined lowering portions of the seedling supply belts 17a and 17b, the tip of the partition lug 19 slides while flexing along the guide plate 34 by the rotation of the seedling supply belts 17a and 17b. Seedling supply belts 17a, 17
The holding groove 20 is opened in the rotation direction of b, so that the depth of the groove is outside the seedling supply belts 17a and 17b.
Further, in the upper center of the seedling holding piece 18, a seedling supply belt 17 is provided.
a, a slot 18a extending in the rotation direction of 17b is provided;
The slit 18 a communicates with the holding groove 20.

As shown in FIG. 5, a plurality of pins are erected on the machine frame on the rear side of the guide plate 34 facing the seedling holding piece 18, and the winding diameter portions of the seedling holding springs 43 are inserted and held respectively. Then, one end of the seedling holding spring 43 is fixed to the machine frame, and the other end is extended toward the rotation direction of the seedling supply belts 17a and 17b, and is drawn into the slit 18a of the seedling holding piece 18, and the tip is slid. It pushes toward the groove bottom of the seedling holding piece 18 through the split 18a.

With the above arrangement, when the seedlings are mounted, the root of the seedling is grasped from the seedling container 22 of the seedling holder 21, the root of the seedling is abutted against the seedling guide 46, and the holding groove 20 of the seedling holding piece 18 is held. And the leaves of the seedlings are accommodated so as not to protrude from the partition lugs 19. 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 15 to the drive roller 16a, the holding groove 20 of the seedling holding piece 18 is opened downward. One end of the plurality of seedling holding springs 43 successively holds the seedling stock through the slit 18a of the seedling holding piece 18. At the same time, the leading end of the partition lug 19 slides on the guide plate 34 and bends in a direction opposite to the rotation direction of the seedling supply belt 17 to bend.
Wrap the tip of the seedling along the surface of the seedling. By wrapping the tips of the seedlings, dripping of the leaves of the seedlings and catching of the leaves can be avoided, and accidents such as dropping of the seedlings by the cutting nails 12 can be prevented. The seedling holding piece 18 holding the seedling is driven by the drive roller 16a,
When it reaches the position between 16b, the root of the seedling is supported by the pressing of the seedling holding spring 43, and is held at the center by the guide disk 35 attached to the drive roller shafts 30,31. As a result, the seedlings sent from the left and right seedling supply belts 17a and 17b are concentrated at one point, and the root of the seedling is
Of the seedling claw 12 of FIG. During the rotation of the left and right seedling supply belts 17a, 17b, the seedlings that have fallen or have fallen off the guide disc 35 are supported by the seedling support arm 44 provided therebelow so as not to be caught in the movable part of the seedling machine. To be removed. Then, the cutting seedlings 12 descending synchronously grasp the roots of the seedlings and further descend, pull out the seedlings by pulling down the support arms 44, and furthermore, the cutting seedling rods 13 descend and move the seedlings from the cutting seedlings 12 to the ridges of the field. Implant. The seedling supply belt 17b rotates with a delay of a half pitch, and the root of the seedling is moved to the center by the guide disk 35, and the seedling claw 12 similarly descends at that position.
The seedlings of the seedlings are sandwiched and further lowered, the support arm 44 is pulled down, the seedlings are extracted, and the seedlings 13 are lowered to be planted in the ridges from the seedling claws 12. When two workers supply seedlings to the left and right seedling supply belts 17a and 17b, the operation speed is adjusted and the right and left seedling supply belts 17a are reduced by the speed reduction mechanism while the seedling rod 13 makes one rotation (360 degrees). , 17b
The seedlings can be supplied to the cutting rods 13 by rotating them 1/4 turn (90 degrees), and the seedlings can be synchronously cut. 1 worker
When the operation is performed by the name, only one of the left and right seedling supply belts is driven to adjust the operation speed, and the rotation of the seedling rod 13 makes one rotation (360 degrees). By rotating the belt by 回 転 (180 degrees), the seedlings can be similarly supplied to the seedling rods 13 and the seedlings can be synchronously inserted.

[0010]

According to the present invention, a sweet potato seedling insulting machine is basically configured to have two seedling supply belts for one seedling claw. Since there are two seedling supply belts, both the driver and the dedicated worker can work together to set up the seedlings, which is troublesome. As a result, the efficiency doubles at once, while Since the number of claws is one, it is sufficient that the width of the machine is sufficient to straddle one ridge, and there is an effect that it is not bulky as compared with the conventional one and can be configured as a walking type. Also, attach a large number of seedling holding pieces at equal intervals along one side edge of the seedling supply belt,
Since the groove depth of the holding groove formed in the seedling holding piece is located outside the seedling supply belt, holding the seedling in this groove depth allows both the seedling of the left seedling supply belt and the seedling of the right seedling supply belt. , Both belts can be sent to a common point in the nearest place. In addition, since the holding groove is opened in the rotation direction of the seedling supply belt, the seedling can be smoothly extracted from the holding groove only by the cutting seedling grasping the seedling and descending the common point. Therefore, according to the present invention, there is an effect that the seedlings can be supplied from the two left and right seedling supply belts to one central cutting seedling without trouble. Also, by raising a flexible partitioning lug at right angles to the rotation direction in front of the rotation direction of the seedling holding piece of the seedling supply belt, the leaves of the seedlings are supported by the partitioning lugs, and the seedlings fall and the leaves drop or protrude. It also has the effect that seedlings can be surely planted while suppressing seedlings. further,
A slit communicating with the groove bottom along the rotation direction of the seedling supply belt is provided on the upper surface of the seedling holding piece, and opposed to this slit,
A plurality of seedling holding springs having one end fixed along the rotation direction of the seedling supply belt are arranged on the machine frame, and the seedling holding belt is being advanced by pressing the groove bottom of the seedling holding piece by the seedling holding spring through the slit. In this way, the seedlings can be reliably sent to a common point where the seedlings can grasp the seedlings by suppressing the falling and displacement of the seedlings, and the seeding operation can be performed continuously.

[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 detailed view of a main part of the seedling supply mechanism.

FIG. 6 is a side view of a conventional sweet potato seedling seedling machine.

FIG. 7 is a plan view of a conventional sweet potato seedling seedling machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sweet potato 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 Connection shaft 12 Reference Signs List 13 seedling rod 14 clutch mechanism 15 guide roller 16a, 16b drive roller 17a, 17b seedling supply belt 18 seedling holding piece 19 partitioning lug 20 holding groove 21 auxiliary 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 Receiving Conveyor 37 Seedling Receiving 41 Hydraulic Package 42 Fuel Tank 43 Seedling Holding Spring 44 Seedling Support Arm 45 Arm Stopper 46 Seedling Guide 47 Projection Claw 48 Depressed Groove

Claims (3)

[Claims] Claims: 1. A sweet potato seedling machine for picking up seedlings of a seedling supply belt one by one with openable and closable seedling claws that move up and down and inserting the seedlings into the ground, wherein two seedling supply belts are provided on the left and right of the seedling claw. Each of these seedling supply belts is rotated toward the center of the fuselage, and a large number of seedling holding pieces are attached at equal intervals along the front side edges of the two seedling supply belts. Forming a holding groove that opens in the rotation direction of the seedling supply belt, and positioning the groove depth outside the outer periphery of the seedling supply belt, and holding the seedling supply belt between the left and right seedling supply belts by rotating the seedling supply belt. A seedling supply device in which pieces alternately pass in front of the cutting nail. 2. The two seedling supply belts according to claim 1, wherein a large number of flexible partition lugs perpendicular to the belt rotation direction stand on the two seedling supply belts outward, and each lug is arranged in front of the seedling holding piece. Seedling supply device. 3. A slit is formed on the upper surface of the seedling holding piece along the rotation direction of the seedling supply belt, and a slit is formed in the groove, and a plurality of seedling holding springs are provided along the downwardly inclined portion of the seedling supply belt. 3. The seedling supply device according to claim 1, wherein the seedling holding device is fixed to a machine frame, and is pressed from above through a slit of the seedling holding piece by the seedling holding spring.