JPH069442B2 - Seedling planting equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a seedling planting device suitable for transplanting sweet potato seedlings (vines), for example.

[Conventional technology]

Raising seedlings and seedlings (transplanting) of sweet potatoes requires labor of 30% of the total work, and it is necessary to mechanize and save labor to reduce labor load and production cost.

Conventionally, various types of seedling planting devices (seedling devices) that can transplant sweet potato seedlings have been proposed, but they are only testing machines and are still widely used and used as practical machines. The current situation is that there are none.

[Problems to be Solved by the Invention]

There are many causes for not being put to practical use. For example, sweet potato seedlings are vines, and their length and shape are not constant, and they are bent, so it is difficult to separate them one by one at the seedling feeding section and feed them to the transplanting section in a substantially constant posture.

Although it is necessary to make the planting depth almost constant, the planting depth is not constant because the delivery of seedlings from the seedling supply section to the transplanting section is unstable.

Conventional transplanters can be transplanted in bare land cultivation, but in multi-cultivation, they cannot be transplanted simultaneously while making holes in the poly film. In addition, soil is likely to adhere to the transplanted part (transplanted nail), which reduces the working accuracy.

Work efficiency is poor and needs to be improved.

There was a problem to be solved such as.

The present invention has been made for the purpose of solving the above problems.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, according to the present invention, seedlings A are individually transferred to an endless conveyor belt 3 that is intermittently driven to rotate around a plurality of rotary shafts mounted substantially horizontally in one direction at predetermined intervals. A large number of seedling supply holders 4 to be placed in a horizontal direction in a fixed direction were provided at predetermined intervals, and the base side of the seedlings A was projected outward from the seedling supply holders 4 by a predetermined length in each of these seedling supply holders 4. In the state, a seedling holding portion 5 which is held by a pair of elastic bodies is provided, reciprocates up and down in conjunction with the intermittent movement of the seedling supply holder 4, and the base portion of the seedling A projected outward from the seedling supply holder 4 when descending. The seedling A is clamped and removed from the seedling sandwiching section 5, the base of the seedling A is inserted into the soil to a predetermined depth to release the sandwiching of the seedling A and transplanted, and a transplanting claw 8 that comes out of the soil is provided, The seedling A is clamped by the seedling clamping section 5 at the upper position of the rotation trajectory of the supply holder 4, and the seedling is supplied. It is characterized in that the seedling A Transplantation nail 8 at the bottom position of the rotational locus of the holder 4 is configured for implantation in the soil removed from Naekyo lifting unit 5.

[Action]

According to the present invention having the above-described configuration, the seedling A is placed on the seedling supply holder 4 in a state of being sandwiched by the seedling sandwiching portion 5 and moved,
The seedling A is securely moved to the lower part of the seedling, and the seedling A is placed in the seedling supply holder 4.
The seedlings A do not fall or fall even when they come to the lower part of the rotation locus, and the seedlings A are accurately fed while being held at a substantially constant position on the base side. Then, since a substantially predetermined portion on the proximal end side of the seedling A is sandwiched and supplied to the transplant nail 8, there are few supply mistakes to the transplant nail 8 due to bending of the seedling A, and the seedling A is reliably delivered. Strainless transplant work is performed.

Since the seedling supply holder 4 moves intermittently, the stationary time of the seedling supply holder 4 becomes long, and the seedling supply to the transplant nail 8 is performed easily and reliably. Therefore, the transplant nail 8 performs an accurate transplant operation.

Seedling supply section 1 (seedling supply holder 4) and transplanting section 2 (transplant nail 8)
The seedlings A are transplanted almost vertically or obliquely because the and are interlocked.

Since the seedlings A are transplanted one at a time in a substantially vertical or diagonal direction, it is possible to transplant (inoculate) vegetables, flowers and the like in addition to sweet potato seedlings.

In addition, both transplanting work of open cultivation and sweet potato cultivation of sweet potato can be performed.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

1 to 5 show an experimental apparatus showing the basic constitution of the present invention, in which reference numeral 1 is a seedling supplying section, and 2 is a transplanting section. Seedling supply section 1
Is equipped with sprocket wheels respectively attached to four rotary shafts mounted substantially horizontally and in parallel, and the chain 3 is wound around these sprocket wheels so as to move endlessly and intermittently in one direction at regular intervals. , This chain 3
A plurality of seedling supply holders 4 for mounting one seedling A in a horizontal posture in a certain direction are provided at predetermined intervals, and the base side of the seedling A is supplied to each of these seedling supply holders 4 for a substantially predetermined length. Holder 4
The Y-shaped seedling sandwiching device 5 is provided for sandwiching the seedling sandwiching device 5 while protruding from the end of the seedling.

This seedling clipper 5 is not limited to the shape as in the above embodiment,
As shown in Fig. 9, a shape that curls outward at the top
5a (a), left and right sandwiching members intersecting at the bottom 5b (b), left and right sandwiching members integrally molded with an elastic body such as rubber (c), above (C)
Various shapes may be used, such as the one in which a slit is formed on the inner surface of the slit 5d (d).

In addition, the transplanting section 2 reciprocates up and down in conjunction with the intermittent movement of the seedling supply holder 4, and at the descending position of the seedling supply holder 4, holds the base portion of the seedling A projecting outward from the seedling supply holder 4. The seedlings are removed from the seedling sandwiching device 5, the base of the seedlings A is inserted into the soil to a predetermined depth to release the sandwiching of the seedlings A, and the nails are transplanted to be removed from the soil. This transplant nail 8 is
It is composed of two chopstick-shaped rods that are attached to a chuck 7 that is vertically movable on the air cylinder 6 and that can be opened and closed.

The seedling supplying section 1 and the transplanting section 2 are provided with a motor 9 and a transmission 1.
0, decelerator 11, intermittent drive device (Geneva gear) 12, transplant nail synchronization sensor 13, etc.
Although not shown in the drawing, the air cylinder 6 of the transplanting section 2
An air compressor is connected.

The reference numeral 15 indicates that the seedling A, which is sandwiched by the seedling sandwiching device 5 at the upper position of the rotation locus of the seedling supply holder 4 and moves while being placed on the seedling supply holder 4, moves from a substantially horizontal state to a substantially straight line. It is a seedling guide that guides the seedling supply holder 4 so that it does not spill when moving to a state.

In the experimental device of the seedling planting device having such a configuration, the seedling A having a length of about 30 cm is placed at the base of the seedling sandwiching device 5 at the upper position of the rotation trajectory of the seedling supply holder 4 which intermittently moves in one direction. The seeds are sandwiched so as to project from the seedling supply holder 4 and placed on the seedling supply holder 4. And
When the seedling supply holder 4 on which the seedling A is placed moves from a substantially horizontal state to a substantially vertical state, the seedling A prevents the seedling A from spilling out of the seedling supply holder 4.

When the seedling supply holder 4 is disengaged from the seedling guide 15 and stopped at the lower position of the rotation locus, that is, in the inverted state and stopped, the transplanting nail 8 descends by the air cylinder 6 in synchronization with this and the chuck 7 moves The interval is narrowed to sandwich the portion of the seedling A projecting from the seedling supply holder 4, and while descending, remove the seedling A from the seedling sandwiching device 5 and insert it into the soil, and when the seedling A enters a predetermined depth, the chuck 7 Thus, the interval between the transplanting nails 8 is opened to release the sandwiching of the seedling A, and the seedling A is lifted by the air cylinder 6 to escape from the soil, and the transplanting operation of the seedling A is completed.

The planting posture of the seedling A at this time is almost vertical, but the plant A can be planted in an oblique posture by inclining the seedling supply unit 1 and the transplanting unit 2 in one of the front and rear directions.

An embodiment in which the seedling planting device according to the above experimental device is applied to and incorporated in a small walking tractor 20 will be described with reference to FIGS. 6 and 7.

The tractor 20 has an engine 22 mounted on the front of the fuselage, and a seedling supply unit 1 and a transplantation unit 2 with a modified transplantation nail 8 similar to those used in the above-described experimental device mounted via a hitch 21 provided behind the engine 22. is doing. Further, the tractor 20 includes a pair of left and right drive wheels (rear wheels) 23 that can be adjusted up and down, and the drive wheels.
Equipped with a pair of left and right guide wheels (front wheels) 24 that move up and down in conjunction with the vertical adjustment of 23, and by rotating the planting depth adjustment handle 25, the drive wheel 23 and the guide wheels 24 are vertically adjusted, and the implanting part 2 The planting depth of the seedling A to be planted by is adjusted.

Further, the drive wheel 23 and the guide wheel 24 have a structure in which the left and right wheels are separately adjusted up and down to adjust the levelness of the machine body. Change the power from the engine 22 to change the chain transmission system.
The signal is transmitted to the transplanting section 2 via 26 and is transmitted to the seedling supplying section 1 via the chain transmission system 27 so as to be driven.

In the transplanting part 2, the crank mechanism 16 reciprocates the implanting rod 2a up and down, and the opening and closing claws 2c via the cam link 2b.
The seedling placing table 14 for storing and storing the seedlings A is provided on the upper side (right side in FIG. 1) of the seedling supplying section 1 so as to be opened and closed.

A ridge guide plate 28 that moves in contact with the ridge B for transplanting the seedlings A is attached to the inside of the guide wheel 24. The guide wheel 24 and the ridge guide plate 28 are placed on the left and right with respect to a pair of left and right support arms 29. It is movably supported and its spacing can be adjusted and fixed. In addition, behind the transplantation part 2,
A squeeze wheel 30 is provided to squeeze the soil on the right and left sides of the transplanted seedling A to squeeze it.

The seedling supplying section 1 and the transplanting section 2 are supported on the walk-behind tractor 20 so that the front and rear inclination angles can be adjusted, and the inclination angles can be adjusted by an inclination lock pin 31. In addition, the seedling supply holder 4 that moves intermittently
The moving speed and the vertical movement interval of the transplanting part 2 which moves up and down in conjunction with this intermittent movement are adjusted by the inter-plant adjustment lever 32, so that the planting interval (between plants) of the seedlings A can be adjusted.

In the seedling planting apparatus having such a configuration, the drive wheel 23 and the guide wheel 24 of the walk-behind tractor 20 are arranged so as to stride over the ridged ridges B or the ridged ridges covered with a poly film. The operator puts the seedlings A placed on the seedling placing table 14 one by one in the seedling sandwiching device 5 located at the upper portion and supplies the seedlings to the seedling supplying table 4, and in addition to running the tractor 20 in this state, The seedlings A are successively supplied to the seedling supply table 4 which moves intermittently.

Then, when the seedling supply table 4 supplied with the seedlings comes out of the seedling guide 15 and is in the inverted state and stopped, the crank mechanism 16 lowers the planting rod 2a, and the opening and closing claws are opened via the cam link 2b. 2c is closed and the base of the seedling A is sandwiched between the seedling A and the planting rod 2a, and further descended to remove the seedling A from the seedling sandwiching device 5 to a predetermined depth in the ridge B (10 to 14 cm, from the base end of the seedling). Two
Insert the opening / closing claw 2c with the cam link 2b and pull it out from the ridge B. After that, seedling A planted in ridge B
Is pressed by the compression wheel 30 from both left and right sides.

At this time, in the tractor 20, the drive wheel 23 and the guide wheel 24 travel in the ridges (grooves) on both sides of the ridge B, and the seedling guide plate 28 is in contact with both upper surfaces of the ridge B, and is 0.17 to 0.33 m / s. Since the worker moves at a slow speed, the worker can supply the seedling A and operate the tractor 20 by himself. Then, in the transplanting section 2, the seedling A is sandwiched between the planting rod 2a and the opening / closing claw 2c, and the seedling A is almost perpendicularly or obliquely inserted into the ridge B, and even if it is a multi-ridge, a hole is formed in the film at the same time. The seedling A can be planted. The planting depth of the seedlings is adjusted by the planting depth adjusting handle 25, and the planting interval of the seedlings is adjusted by the interplant strain adjusting lever 32.

The seedling planting device of the present invention is not limited to single-row planting as in the above-described embodiment, but a plurality of sets may be set with the seedling supplying section 1 and the transplanting section 2 as a unit to plant a plurality of rows simultaneously. It is a thing. Further, the transplanted nail is not limited to a configuration in which the seedling is sandwiched and inserted into the soil, but may be configured to be inserted into the soil while holding or pushing the seedling.

〔The invention's effect〕

As described above, according to the seedling planting device of the present invention, the following effects can be obtained.

Seedling supply holder 4 with seedling A sandwiched by seedling sandwiching section 5
Since the seedling A is placed on and moved, the seedling A is surely moved to the lower part, and is not dropped or dropped even when the seedling A comes to the lower part of the turning locus of the seedling supply holder. Further, since the seedling A is clamped at a substantially constant position on the base side, accurate seedling feeding is performed.

The seedling A is clamped at a substantially predetermined site on the base end side and supplied to the transplanting nail 8, so that the mistakes in the supply to the transplanting nail 8 due to the bending of the seedling A are reduced, and the seedling A is reliably delivered. There is no porting work.

Since the seedling supply holder 4 moves intermittently, the seedling supply holder 4
Of the seedling A becomes easy and the seedling A can be easily supplied to the transplanted nail 8. In addition, since the transplanting nail 8 holds and transplants the stationary seedling A, an accurate transplanting operation is performed.

By mounting the seedling supply unit 1 (seedling supply holder 4) and the transplantation unit 2 (transplant nail 8) on the traveling machine body in association with each other, the seedlings A can be transplanted almost vertically or obliquely.

Since the seedlings A can be transplanted almost vertically or obliquely, the seedlings A can be used not only for sweet potato seedlings but also for seedlings such as vegetables and flowering trees.

In addition, since the seedlings A are held one by one and transplanted in a substantially vertical direction or in an oblique direction, it can be applied to, for example, both open field cultivation of sweet potato and polymulch cultivation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows the basic configuration of the present invention, (a) is a side view of the whole, (b) is a front view of a seedling supply section, and FIG. 2 is a perspective view of the same seedling supply section. FIG. 3 is a perspective view showing the power transmission path, FIG. 4 is a front view of the seedling supply holder and seedling sandwiching portion, FIG. 5 is a perspective view of the transplanted nail, and FIG. 6 is a walking type of the present invention. An overall plan view of an embodiment equipped on a tractor, FIG. 7 is a side view of the same, FIG. 8 is a partial perspective view of the same transplanted nail, and FIGS. It is a front view. 1 ... Seedling supply section, 2 ... Transplanting section, 3 ... Chain, 4 ...
Seedling supply holder, 5, 5a to 5b ... Seedling sandwiching device, 6 ... Air cylinder, 7 ... Chuck, 8 ... Transplanting claw, 9 ... Motor, 10 ... Transmission, 11 ... Reduction gear, 12 ...... Intermittent drive, 13 ...... Sensor for synchronizing the transplanted nails, 14 …… Sapling placement table, 15…
… Seedling guide, 16 …… Crank mechanism, 20 …… Walking tractor, 21 …… Hitch, 22 …… Engine, 23… Drive wheel (rear wheel), 24… Guide wheel (front wheel), 25… Planting Depth adjustment handle, 26,27 …… Chain transmission system, 28 …… Ridge guide plate, 29 …… Support arm, 30 …… Squeezing wheel, 31 …… Inclined lock pin, 32 …… Share adjustment lever, A …… Seedling, B ... ridge.

Claims (1)

[Claims] 1. An endless conveyor belt that is intermittently driven to rotate around a plurality of substantially horizontally rotating shafts in one direction at predetermined intervals.
In (3), a large number of seedling supply holders (4) for placing one seedling (A) in a horizontal posture in a fixed direction are provided at predetermined intervals, and each of these seedling supply holders (4) has a seedling (A). ) Is provided with a seedling holding portion (5) which is sandwiched by a pair of elastic bodies in a state where the base side of the seedling feeding holder (4) is projected outward from the seedling feeding holder (4), and the seedling feeding holder (4) is intermittently moved. Reciprocate up and down in conjunction with each other, and when descending, sandwich the base of the seedling (A) protruding outward from the seedling supply holder (4) and remove it from the seedling sandwiching portion (5), seedling (A)
Inserting the base part of the seedling into the soil at a substantially predetermined depth to release the sandwich of the seedling (A) and transplanting it, and providing a transplanting claw (8) that comes out of the soil, and the rotation trajectory of the seedling supply holder (4) The seedlings (A) are clamped in the seedling clamping part (5) at the upper position of the seedlings, and the seedlings (A) are clamped by the transplanting claws (8) at the lower position of the turning locus of the seedling supply holder (4). A seedling planting device, which is configured to be removed from the plant and transplanted into the soil.