JPH0220209A - seedling planting machine - Google Patents

Abstract

PURPOSE:To provide the title machine so designed that seedling root-receiving frames are set up left and right at regular intervals in a comb-like manner and the upright face of a seedling-receiving frame is fitted with a narrow sliding contact part, thereby enabling the seedlings to be taken out with their attitude prevented from getting out of shape in their splitting. CONSTITUTION:When a seedling tank 3 is loaded with pot-shaped seedlings, their bottom surfaces are supported by the bottom plate 3b of said tank 3, and those at the lower end are supported by the bottom surface 2c of a seedling-receiving frame 2 and seedling root-receiving frames 4.... When the respective parts of a rice transplanter are put to transmission rotation, the seedling tank 3 is subjected to horizontal reciprocating motion and the pot-shaped seedlings are successively delivered to a seedling-dividing port 1, gripped with dividing chucks of a seedling-planting device and planted into the soil. At this time, the seedlings are firmly held in a specified attitude by the seedling root-receiving frames 4 in their dividing, hence, ensuring proper seedling planting. Furthermore, the tip faces of the pot-shaped seedlings are not directly rubbed on the upright face 2a of the seedling-receiving frame 2 even when the tank 3 is in horizontal reciprocating motion, therefore said seedlings never fall left or right, thus ensuring their upright state.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention has a method of holding the seedlings to be divided at the seedling dividing opening at the lower end of the seedling tank of a seedling planting machine and adjusting the posture of the seedlings when planting the seedlings. This invention relates to a seedling planting machine in which a seedling planting tool divides the seedlings so as not to break them. In particular, it relates to a seedling transplanter that prevents the seedlings from changing their posture when dividing and allows the seedlings to be taken out when pot-shaped seedlings are placed and housed on a seedling tank and the potted seedlings are divided and planted one by one. It is something.

[Prior art]

Conventionally, seedlings grown in a seedling device consisting of paper tubes (generally called pot seedlings) were placed in a seedling tank that moved back and forth from side to side, and the seedlings were divided into individual seedlings.
There have already been similar methods as seen in Publication No. 9-2902 and Japanese Patent Publication No. 17804-1983. That is, the former technique involves pressing the upper surface of the seedling and releasing the press when dividing the seedling, while the latter technique involves combing out the leaves and stems of the seedling.

Both of them were comb-shaped, but neither of them were configured to receive the front surface of the roots of the seedlings.

[Problem that the invention seeks to solve]

In any of the above-mentioned known techniques, when a seedling is divided, the root part of the seedling to be divided is not held at the seedling dividing opening, so that the seedling tends to fall down from the seedling dividing opening due to gravity, and the seedling is not properly separated. There was a problem in that the seedlings could not be grasped by the seedling dividing claws of the seedling planting tool, making it impossible to plant them accurately.

In addition, if a seedling holder separate from the seedling tank is installed only at the seedling dividing opening, since the seedling tank moves back and forth from side to side, it is guaranteed that the roots of the seedlings will always be accurately received at the seedling dividing opening. There is a problem in that the front end surface and the lower surface of the seedling slide in contact with the seedling receiving frame, which may cause the seedling to fall sideways, making it impossible to reliably divide the seedling.

[Means to solve the problem]

In order to solve the problems of the prior art described above, the present invention fixes a seedling receiving frame 2 formed with a seedling splitting opening to the machine body, and attaches a seedling tank 3 to the seedling receiving frame 2 in the left and right directions. In the seedling transplanter configured to reciprocate, the seedling root receiving rod 4, which contacts the front surface of the root of the seedling and prevents the root side posture of the divided seedlings from collapsing, is moved integrally with the seedling tank 3. The seedling is provided in a comb shape at a predetermined interval in the left and right direction, and is provided with a narrow sliding contact portion 2b on the standing surface 2a of the seedling receiving frame 2 for slidingly guiding the seedling root receiving rod 4. It was used as a planting machine.

〔Effect of the invention〕

Since this invention has the above configuration, the seedling root receiving rod 23
is housed in the seedling tank 3 and is reciprocated from side to side to receive the tip surface of the seedling that is fed out to the seedling division ``]1'' of the seedling receiving frame 2, and the tip surface of this seedling is directly placed on the standing surface 2a of the seedling receiving frame 2. The seedlings are fed out without sliding contact, and before the seedlings are divided by the seedling splitting claw of the seedling planting tool 10, Ob, and 10C, the seedlings may fall or hang down from the seedling splitting port. This will prevent the city from changing its position and being divided, or from not keeping the city divided at all.

Furthermore, since the erecting surface 2a of the seedling receiving frame 2 is provided with a narrow sliding contact portion 2b for slidingly guiding the seedling root receiving rod 4, the vertical position of the seedling root receiving rod 4 and the seedling receiving frame 2 can be easily adjusted. Since the sliding resistance with respect to the installation surface 2a is reduced and the deformation of the seedling root receiving rod 4 is also relatively small, the effect of maintaining the posture of the seedling is enhanced.

〔Example〕

Reference numeral 5 denotes a gear box of the rice transplanting device, which includes a main gear box part 5a which houses a reciprocating mechanism for reciprocating the seedling tank 3, which will be described later, and which extends rearward from the main gear box part 5a, which will be described later. +'i A sub-gear box part 5b that drives the planting tool 6, and the front end of the left and right intermediate part of this main gear box part 5a is connected to the towing vehicle body by a link mechanism 7.

Reference numeral 3 denotes a seedling tank, which is formed with left and right side walls 3a and a bottom plate 3b so that the front and rear ends are open, and is supported by the gear box 5 by upper and lower supports 8a and 8b so as to be able to reciprocate from side to side. There is. A seedling feeding belt 9 is wound around a hole formed in the bottom plate 3b of the seedling tank 3, and is driven by a ratchet feeding mechanism 10.

Reference numeral 11 denotes a connecting arm that connects the reciprocating mechanism in the main gear box 5a and the seedling tank 3, thereby causing the seedling tank 3 to reciprocate from side to side.

Reference numeral 12 denotes a seedling feeding drive rotor, and when the seedling tank 3 reaches the left and right lateral ends, the arm 10a of the ratchet feeding mechanism 10 engages with this rotor 12, and the bell 1-9 is rotated. ing.

Reference numeral 2 denotes a seedling receiving frame, which is integrally formed with the lower support 8b and has an upright surface 2a and a bottom surface 2c in a shape when viewed from the side.
It is installed opposite to the lower end opening of the seedling tank 3, and the standing surface 2
A hole 2d is bored in the hole 2d, and a sliding portion 2b is formed for slidingly guiding the lower end of the seedling root receiving rod 4 described below.

Seedling dividing openings 1, 1 are bored in this seedling receiving frame 2.

6 is a seedling planting tool, which includes an operating case part 6a and a pair of seedling dividing claws 6.
b and 6c, and an operating case 6a is attached to the auxiliary gear box 5b with a swing arm 13 and a rotating crank 14. Of the pair of left and right seedling dividing claws 6b and 6c of this seedling planting tool 6, the seedling dividing claw 6b is connected to the case part 6a.
The other seedling dividing claw 6c is attached to a rotating shaft 15 with a cam floor, and is rotated by a cam 17 fixed to a crank pin 16 in the case part a. There is. 18 is a spring. The left and right pair of seedling dividing claws 6b and 6c are the seedling dividing opening 1 of the seedling receiving frame 2.
After intervening from above with the claws 6b and 6c open at a constant distance inward and left and right, the seedling A is held between the claws 6b and 6c. It is designed to open wide with the urging force of.

9 is a leaf and stem part receiving body, which becomes a horizontal rod when turned over, and has a long hole 23 formed in the standing surface 22a of the metal fitting 22 fixed to the side i3a of the seedling tank 3 with bolts 20°21. The left and right ends of the connector are inserted through and attached to the connector. Reference numeral 24 denotes a seedling floating prevention body made of a rod, one end (lower end) of which is attached to the leaf stem receiving body 19 in one direction, and prevents the seedlings placed and accommodated in the seedling tank 3 from floating. It is.

Reference numeral 4 denotes a seedling root receiving rod, which is integrally attached to the leaf/stem portion receiving body 19 similarly to the seedling floating prevention body 24. and,
The seedling root receiving rod 4 is provided so as to extend toward the lower seedling receiving frame 2 at approximately the same interval as the left and right seedling dividing claws 6b, 6c, and its tip is connected to the upright position of the seedling receiving frame 2. It is provided so as to be in contact with the sliding contact portion 2b of the surface 2a. In addition, these comb-shaped receiving rods 4, 4... are attached to the seedling dividing claw 6 in the seedling dividing opening 1
b.

At the time when 6c intervenes, it is provided so as to be located exactly between the left and right seedling dividing claws 6b and 6c.

Reference numeral 25 denotes a support rod that supports the upper end of the seedling floating prevention body 24 made of a rod, and the poles 1-2 are attached to the side wall 3a of the seedling tank 3.
6.27, both right and left ends of the metal fitting 28 are inserted into and supported by elongated holes 29 provided in the standing surface 28a of the metal fitting 28 fixed as shown in FIG. It is integrated with the floating prevention body 24. The seedling floating prevention body 24 is attached to the metal fittings 22 and 28 together with the seedling root receiving rod 4.
The elongated holes 23 and 29 and the leaf stem receiver 19 provided in the
By moving both the right and left ends of the support rod 25, the seedlings placed in the seedling tank 3 move parallel to the direction A in which the seedlings are fed out by the belt 9, and the support rod 25 is engaged with the lock provided in the elongated hole 29. When it is locked in the locking part 29a, the seedling is supplied to the seedling dividing opening 1, and when it is locked in the locking part 29b, the seedling is pulled up and the seedling is not fed into the seedling dividing opening 1. It is configured to be. 30 is a gripping rod extending upward from the support rod 25.

In addition, 31 in the figure indicates a leveling float.

To explain the function of the upper side, pot-shaped seedlings A grown in paper seedling growing pots are placed and housed on the seedling tank 3 in the state shown in the seedling floating prevention body 24 and FIG.

Then, the bottom of this pot-shaped seedling A is attached to the bottom plate 3 of the seedling tank 3.
The seedlings on the lower end side are received by the bottom surface 2c of the seedling receiving frame 2 and the seedling root receiving rods 4. That is, the left and right center portions of the front end surface of each potted seedling A are received in a state where the seedling root receiving rods 4-- are in contact with the sliding contact portion 2b of the upright surface 2a.

In this state, when each part of the rice transplanter is rotated by transmission, the seedling tank 3 is reciprocated from side to side, and the potted seedlings A are fed out one after another into the seedling dividing chamber 1. Then, this delivered seedling A is attached to the left and right seedling dividing claws 6b of the seedling planting tool 6.

6c and planted on the soil leveled by the leveling float 31.

At this time, the potted seedlings A in the seedling tank 3 are pulled out to the bottom of the seedling dividing opening 1 and divided, so they can be easily divided without any problems.Moreover, the seedling root receiving rod 4 allows the seedlings to be divided easily even when the seedlings are divided. Since the posture is firmly maintained as specified, even when planting seedlings, the planting posture will not be disturbed and the planting can be done reliably.

In addition, even when the tank 3 reciprocates from side to side, the tip of the potted seedling A is not directly rubbed by the standing surface 2a of the seedling receiving frame 2, so it does not fall to the left or right and the standing state is ensured. will be retained.

Furthermore, since the seedling receiving frame 2 is provided with holes 2d, foreign matter such as soil does not accumulate in the seedling receiving frame 2, and the horizontal movement of the seedling tank 3 can always be carried out smoothly, and the potted seedling A is prevented from collapsing due to foreign matter. can also be avoided.

FIG. 8 shows a second embodiment, in which a recess m2e is formed at the intersection of the upright surface 2a and the bottom surface 2C of the seedling receiving frame 2, and the lower end of the seedling root receiving rod 4 is formed in the recessed groove 2e. Insert the part into the seedling tank 3.
When the seedling root portion receiving rod 4 moves from side to side, the lower end portion thereof enters the groove 2e and is configured to move from side to side.

In this way, deformation of the seedling root receiving rod 4 is further prevented, and the posture of the seedling A can be maintained more accurately.

FIG. 9 shows a third embodiment, in which two protrusions are formed along the longitudinal direction on the standing surface 2a of the seedling receiving frame 2, and the protrusions serve as sliding contact parts 2b.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which figure 1 is a perspective view of the main part, figure 2 is a side view, and figure 3 is taken along line X-X in figure 1.
A sectional view, FIG. 4 is a plan view of the main part, FIG. 5 is a side sectional view of the seedling planting tool 6, FIG. 6 is a perspective view of the main part, FIG. 7 is a front view of the main part, and FIG. 9 is a side sectional view of the main part showing the second embodiment, and FIG. 9 is a side sectional view of the main part showing the third embodiment. Symbols in the diagram: 1 is the seedling dividing opening, 2 is the seedling receiving frame, 2a is the seedling receiving frame 2
2b is the sliding contact part, 2C is the bottom surface, 2d is the hole, 3 is the seedling tank, 3a is the side wall of the seedling tank, 3b is the bottom plate of the seedling tank, and 4 is the seedling root receiving rod.

Claims (1)

[Claims] In a seedling transplanter, a seedling receiving frame 2 formed with a seedling dividing opening 1 is fixed to the machine body, and a seedling tank 3 is reciprocated from side to side with respect to this seedling receiving frame 2. Seedling root receiving rods 4 are provided in a comb-shape at predetermined intervals in the left and right direction to prevent the root side posture of the seedlings that are separated from each other from collapsing in order to move integrally with the seedling tank 3. Setting surface 2
A has a narrow sliding portion 2b that slides and guides the seedling root receiving rod 4.
A seedling planting machine characterized by being equipped with.