JPH0362366B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transplanting device that uses seedlings grown in a seedling-growing container in transplant cultivation of agricultural crops.

[Conventional technology]

Although there are various methods for transplant cultivation, for example, a method using paper tube seedlings is recognized as having great advantages. These paper tube seedlings are
Normally, a seedling raising container is used in which a large number of paper cylinders are arranged in an orderly manner and connected so that they can be separated, the container is filled with soil, seeds are sown, the seedlings are raised, and the seedlings arranged in the paper cylinders are separated into individual paper cylinder seedlings and transplanted. Paper tubes have been developed that can be transplanted while holding the soil securely, and that decompose within a short period of time after transplantation, and are expected to be used for a variety of agricultural products.

On the other hand, as the above-mentioned paper tube seedling transplanting machine, one that utilizes natural fall is desired from the viewpoint of high speed. In other words, it was originally confirmed that variations in the spacing between plants and disturbances in planting posture had little effect on yield, but transplant cultivation using paper tube seedlings is expected to dramatically increase yield. This makes it possible to adopt the natural fall method by making the accuracy of plant spacing and accuracy of planting posture, etc., which were conventionally required of transplanters, to be secondary. Paper tube seedlings are much heavier than other seedlings, are easy to fall, and are easy to control.Furthermore, paper tube seedlings are easy to separate from lined seedlings, making them suitable for high-speed separation.

[Problem that the invention seeks to solve]

As mentioned above, when transplanting by the dropping method, a planting field is formed in the field using a trench opener, and paper tube seedlings are dropped into the planting field immediately after the trench opener, and the seedlings are immediately covered with soil. The soil is covered with soil, but the flow of soil at this time is from the rear side, and a force that pushes the paper tube seedlings forward acts. It was pushed forward and buried at the bottom of the planting ditch.

The present invention aims to solve the above-mentioned problems, provide a high-capacity, high-performance transplanting device, and dramatically expand transplant cultivation.

[Means for solving problems]

The transplanting device of the present invention is a transplanting device that drops and transplants individual seedlings grown in a seedling container, and includes a drop tube provided in a machine frame and having a seedling inlet at the upper end and a discharge port at the lower end, A guide body is connected to the lower end and guides the seedlings from the outlet of the drop pipe to the planting section, and a seedling planting point is formed in the planting section provided at the front of the tip of this guide body. The device is equipped with a groove opener that acts to guide the raised soil by forming a groove into the planting groove where the seedlings have fallen.

[Effect]

The present invention receives the falling seedlings at the entrance at the upper end of the drop tube, guides them to the discharge port and discharges them, guides them to a planting groove made by a groove opener by a guide body, arranges them, and arranges them in a row. The mound of soil is guided behind the mound and the seedlings are covered with soil and transplanted.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

FIGS. 7 and 8 show paper tube-aligned seedlings 1 used in the transplanting device of the present invention. This paper tube-aligned seedlings 1 consist of a large number of square tube-shaped paper tubes arranged in an orderly manner in the left-right and front-back directions. Seedling containers are separably connected using water-soluble glue, the containers are filled with soil, seeds are sown, the seedlings are raised, and the seedlings are separated into individual paper tube seedlings 2 and transplanted.

Next, the transplant device will be explained.

In Fig. 1, 11 is a machine frame, and this machine frame 11
A tractor connecting portion 12 is provided at the front upper part of the machine frame 11, and suppression wheels 13 are supported by shafts 14 on both sides of the rear part of the machine frame 11.

A seedling conveyor 21 is provided at the upper part of the machine frame 11 and is inclined forward and downward.
A receiving plate 22 is connected to the front part of the seedling plate 22, and a seedling regulating device 23 is provided to the front part of the receiving plate 22. As shown in FIG. 6, this seedling regulating device 23
A rotating shaft 24 is horizontally mounted on the rotating shaft 24, and a large number of regulating plates 25 are fixed to the rotating shaft 24 at predetermined intervals at the center thereof. The outer circumferential surface of each regulating plate 25 has a spiral curve, and a separator 26 is formed at the end of the maximum radius, and a needle 27 projects from the end surface of the separator 26 at an angle with respect to the rotation direction. It is set up. Each of the regulating plates 25 is divided into a plurality of groups (in the embodiment shown in FIG. 6, two groups), and are arranged sequentially from one end of each group with the same phase difference.

Each regulation plate 25 is provided at the front of the seedling conveyor 21.
A seedling holding device 28 consisting of an approximately inverted U-shaped spring is provided on one side, and
A seedling scraping body 29 is provided at the bottom of each regulating plate 25 of the seedling regulating device 23.

Then, the shaft 14 of the suppressing wheel 13 and the rotating shaft 24 of the regulating plate 25 of the seedling regulating device 23, and the rotating shaft 24, the seedling conveyor 21, and the seedling scraping body 29 are connected by an interlocking mechanism 30. When the suppression wheel 13 rotates, each regulating plate 25 and the seedling scraping body 29 rotate, and the conveyor belt of the seedling conveyor 21 rotates.

A seedling guiding device 31 is provided below the seedling regulating device 23. As shown in FIGS. 1 and 2, this seedling guide device 31 has drop tubes 32 on both sides attached to the machine frame 11 in an inclined manner. This drop tube 32 has an entrance 33 at the top end widened and gradually narrows as it goes downward.
A discharge port 34 slightly wider than the height of the paper tube seedling 2 is formed at the lower end, and guide pieces 35 extend from the front and both side surfaces of the discharge port 34. The distance between the guide pieces 35 on both sides is gradually narrowed, and at the end, the guide pieces 35 are formed to be slightly wider than the thickness of the paper tube seedling 2.
A notch opening 36 is provided on the back surface below the discharge port 34, and the guide piece 35 has a substantially V-shaped cross section with the rear side open.

Further, a guide body 37 is provided at the lower end of each drop tube 32.
are installed in succession. As shown in FIGS. 3 to 5, the guide body 37 has a substantially U-shaped cross section with an open rear surface formed by an upper plate 38, a lower plate 40 having a notch 39 at its tip, and a front plate 41. At the same time, the front plate 41 is formed into a curved shape in the lateral direction, and an opener 42 is provided at the front end of the front plate 41 .

Next, the operation will be explained.

When a tractor is connected to the tractor connecting portion 12 at the front of the machine frame 11 via a three-point link mechanism and pulled, a sloping planting groove 5 is opened in the field by the groove opener 42.
1 is formed, and the pressing wheel 13 moves forward while rotating.

At the same time, the rotation of the suppression wheel 13 is transmitted to the rotating shaft 24 of the seedling regulating device 23, which rotates each regulating plate 25, rotates each seedling scraping body 29, and rotates the conveyor belt of the seedling conveyor 21. go

As a result, the paper tube-aligned seedlings 1 placed on the seedling conveyor 21 are sequentially sent forward, and the front surface of each paper tube seedling 2 in the front row is pressed against the outer peripheral surface of each corresponding regulating plate 25 with a constant pressure. The paper tube seedlings 2 in the front row are transferred while being pressed to regulate the front position of each paper tube seedling 2.

The outer peripheral surface of the regulating plate 25 has a spiral curve, and the radius gradually decreases in proportion to the rotation angle, so by rotating at a constant speed, the radius decreases at a constant speed, and the seedling conveyor The paper cylinder seedlings 2 in the front row of the paper cylinder aligned seedlings 1 sent in by the paper cylinder seedlings 1 are moved back at a constant speed while regulating the front position. In this way, when one paper tube seedling 2 is sent to a predetermined position, the paper tube seedling 2 is located at the minimum radius part of the regulation plate 25, and the end surface of the separating body 26 is aligned with the paper tube seedling 2. The needle 27 of the separation body 26 hits the upper surface and is pushed downward, and at the same time the needle 27 of the separation body 26 pierces the soil of the paper tube seedling 2, and as it pierces, the paper tube seedling 2
Separate the seedlings downward from the paper tube-aligned seedlings 1 while pulling the upper part of the seedlings laterally.

Further, each regulation plate 25 of the seedling regulation device 23 controls each paper tube seedling 2 included in the front row of the paper tube aligned seedlings 1.
By arranging the separation points sequentially from one end with the same phase difference, the separation points are arranged in a spiral pattern, and the paper tube seedlings 2 are separated one by one from one end. be done. In addition, the pitch of the spiral is equal to the length of one row in the front row when separating paper tube seedlings 2 one by one from the front of paper tube lined seedlings 1, and the length of one row in the front row when separating two seedlings 1 at a time.
By setting the length to 1/2 of the row, it is possible to separate two lines at a time as shown in FIG. 6, and similarly, by arranging the regulating plate 25, three or more lines can be separated.

In addition, individual paper tube seedlings 2 in the front row of the paper tube lined seedlings 1
Seedling holding devices 28 are arranged against the paper tube seedlings 2 to press the front side of the paper tube seedlings 2 and prevent the adjacent paper tube seedlings 2 to be separated from being drawn out and separated irregularly.

Furthermore, when the paper tube seedlings 2 separated from the paper tube-aligned seedlings 1 reach the lower position of the regulation plate 25, the seedling scraping body 29 rotating at a constant speed touches the upper surface of the paper tube seedlings 2 stuck in the needles 27. Then, the paper tube seedling 2 is pulled out from the needle 27 and thrown into the drop tube 32. This drop tube 32
accepts the paper tube seedlings 2 falling within a certain width from the wide entrance 33 at the top, slides the inserted paper tube seedlings 2 along the sloping bottom surface, and as it goes downward. By gradually narrowing the width, the paper tube seedlings 2 that fall are concentrated, and the paper tube seedlings 2 that fall through the drop tube 32 and fly out from the discharge port 34 at a constant speed are directed to the guide pieces 35 on both sides. Therefore, it will be further regulated. At this time, since the width of the discharge port 34 is made slightly wider than the length of the paper tube seedling 2, even if the paper tube seedling 2 falls down due to accidental conditions, no blockage will occur.

In addition, since the rear surface between the guide pieces 35 on both sides of the discharge port 34 is open and has a substantially V-shaped cross section, even if the paper tube seedling 2 falls while falling and passes through the discharge port 34. , falling backward and downward from the notch opening 36 and being prevented from being blocked.

Then, the paper tube seedlings 2 discharged from the drop tube 32 are laterally changed in direction along the curved surface of the guide body 37, and further, the paper tube seedlings 2 slide down along the slope of the planting groove 41 due to inertia. , collides with the bottom of the planting groove 41 and stops. At the same time, the soil raised by the trench opener 42 while forming the planting trench 51 falls over the tip of the upper plate 38 of the guide body 37, as shown in FIG. In this way, the paper tube seedlings 2 are placed and lined up one after another in the planting groove 41, and are immediately covered with soil.Then, the suppression wheel 13 runs next to the planting groove 51 and mounds it up horizontally. The loose soil is further broken up, and the paper tube seedlings 2 arranged in the planting groove 51 are covered with soil and compacted.

In addition, in the above embodiment, the separation body 26 is integrally formed on each regulation plate 25 of the seedling regulation device 23;
This separation body 26 is formed separately from each regulation plate 25,
The paper tube seedlings 2 may be pressed and separated in conjunction with the regulation plate 25. In addition, the suppression wheel 1 is used as a driving source.
3, a separate prime mover may be used. Also,
In the above embodiment, paper tube seedlings were explained, but the present invention can be applied to other types of seedling raising as long as the roots are well-coiled and the wrapping soil is firm.

〔Effect of the invention〕

According to the present invention, falling seedlings are received at the entrance at the upper end of the drop tube, guided to the discharge port by the tube and discharged, guided by the guide plate to the planting groove made by the groove opener, and arranged. By covering this with soil piled up using a trench opener, even relatively short regular seedlings will not fall over and become buried at the bottom of the planting trench, and will be stable. can be reliably transplanted.

Transplant cultivation was also introduced for crops that had traditionally been directly sown, resulting in dramatic improvements in agricultural management.
In addition, the results of transplantation can be fully demonstrated even in crops that have been transplanted in the past.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway side view showing an embodiment of the device of the present invention, Fig. 2 is a rear view of the seedling guiding device section shown in Fig. 1, and Fig. 3 is a guide body section shown in Fig. 2. 4 is a bottom view of the section shown in FIG. 2, FIG. 5 is a perspective view thereof, FIG. 6 is a plan view of the seedling regulating device shown in FIG. FIG. 8 is a perspective view thereof. 2...Seedling, 11...Machine frame, 32...Drop tube, 3
3... Inlet, 34... Outlet, 37... Guide body,
42...furrow opener, 51...planting ditch.

Claims (1)

[Scope of Claims] 1. A transplanting device that drops and transplants individual seedlings grown in a seedling-growing container, comprising: a drop tube provided in a machine frame with a seedling inlet at the upper end and a discharge port at the lower end; A guide body is connected to the lower end of the tube and guides the seedlings from the outlet of the drop tube to the planting section, and a guide body is provided at the front of the tip of the guide body to form a planting groove for the seedlings in the planting section. A transplanting device characterized by comprising: a trench opener that acts to guide the soil that has risen due to the formation of the groove into the planting trench where the seedlings have fallen.