JPS6043081B2 - Transplanting machine inter-plant adjustment method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for adjusting the number of plants to be planted in a transplanter, in which the transplanting section of the transplanter rotates in a circle and plants seedlings while drawing a cycloid curve, and a device suitable for the method.

Conventionally, many types of transplanting machines have been used when transplanting tobacco, vegetables, and other general agricultural products.

The transplanting methods used by these transplanters are to insert the seedlings into the soil using a transfer rod that moves up and down, to plant the seedlings by dropping them into a planting groove, or to place the seedlings in the transplanter and rotate it in a circular manner. A method has been proposed in which the transplanted body is opened and planted in the soil while the plant is planted.
This method of using medium transplants is a very preferable method because even large seedlings can be easily transplanted and can be grown in large holes. Draw a cycloid curve due to the rotation, and
Since the Cloyd curve is determined by the length from the center of rotation to the implant and the rotational speed, there is a drawback that the length of the originally designed implanter cannot be changed. The present inventors solved the above-mentioned drawbacks of transplanters that draw a cycloid curve, and as a result of their research, they were able to freely adjust the spacing between plants and transplant wide plant seedlings. Even if you plant the seedlings by drawing a theoretical cycloid curve on the implant, the planting will be poor, but if you make the rotation of the implant faster and return to the cycloid curve, the planting posture will be good. Focusing on this, we changed the rotation radius and rotation speed of the implant, which draws a cycloid curve, and the return rate due to the rotation of the implant was reduced to 0.
A transplanter suitable for this method employs a method of holding the implant to a range of 93 to 0.87, and has a rotating disc equipped with a large number of implant support arms.
The implant is suspended from the tip of the arm, and implant support arm fixing holes are provided in the rotating disk at the return point and far point of the center of the circle, so that the implant can be locked to a desired far point with the return point as the center. The problem was solved by creating a transplanter in which the rotation of the disc and the rotation of the grounding ring could be adjusted using gears. That is, according to the research conducted by the present inventors, it was found that there is a relationship shown in Table 1 between the return rate of the cyclotide curve and the planting posture of seedlings. However, the theoretical value of the cycloid curve was set as the return rate of 1.00.

In other words, as is clear from the table above, there is a certain range between seedling planting and return rate, and seedlings with a return rate of 0.93 to 0.87 will be planted. .

The present invention was completed based on this knowledge, and to explain the present invention using the example of the drawings, the apparatus used in the present invention includes, for example, an engine 2 mounted on a machine frame 1 shown in FIG.
The chain 3 rotates the chain wheel 4 and the speed change gear 5 fixed to the chain wheel 4.
Rotate.

The speed change gear 5 rotates a rotary disk 8, and as the grounding wheel 7 rotates, a guide plate 9 provided at the front of the fuselage moves forward across the ridge, and an opening device 10 attached to the rotary disk 8 moves forward. There is one that plants seedlings by drawing a cycloid curve. For this reason, the seedling planting mechanism loosely inserts the shafts 11, 1" toward the inside of the machine frames 1, 1" on both sides, and the positions of the shaft centers are different from each other. The rotary disks 8, 8'' are fixed in a right angle direction and are opposed to each other at a constant interval, and a shaft 11 fixes a gear 12 that meshes with the speed change gear 5. A large number of opposing parallel rods 13, 13'' are attached radially to the opposing rotating discs 8, 8'', and a pair of parallel rods 13, 13'' is formed.At this time, the parallel rods 13, 13'' are attached. The mounting hole 14 is provided at a point a certain distance from the center 0 of the disk 8, and the fixing hole 15 is provided at a point farther from the center 0, but there are many fixing holes 15 on the circumference around the mounting hole 14 ( A, b, c) are provided with bolts 16 and 1 in the mounting hole 14 and fixing hole 15.
7 is inserted to fix the parallel rods 13, 13'. Also, the ends of the parallel rods 13 opposite to the installation side are installed with the shafts 18, 1'' facing inward, but for this reason, the center 0 of the disk 8
The length from shaft 18 to shaft 18 varies depending on the installation position a>b>
It has the relationship c. Further, supporting plates 19, 19'' are provided facing each other to connect the shafts 18, 1'', respectively.
and Yumasu. Furthermore, below the shafts 18, 18'', U-shaped opening device mounting plates 20, 2'' are rotatably mounted in parallel, and below the mounting plates 20, 2', opening plates 21, 21 are arranged facing each other. The aperture plates 21 and 2V are composed of two plates that are opposite to each other and form an inverted conical shape when put together. Further, springs 22, 22'' are wound around the shafts 18, 1'', respectively, and mounting plates 20, 2 are attached to each end of the shafts 18, 1''.
"It passes through the long grooves 23-A, 23-B, and the support plates 19, 1
9'', and always biases the opening plates 21, 2'' in the closing direction.The mounting plates 20, 2'' are fixed at both sleeves 23, respectively.
, 23, 23'', 23'' in the right angle direction, and support plate 19
, 19'' so that they overlap each other in the center. One sleeve 23 extends upward to form an engaging protrusion 24, and each sleeve 23, 23'' has a sliding portion at the overlapping portion. The contact members 25, 25'' are fixed, and the member 25 is positioned above the member 25''. Then, an opening guide rod 26 is fixed to the machine frame 1 parallel to the rotation locus of the opening plate 21 and toward the rear of the rotation from the lower position, so that it can be engaged with the engagement rod.
Therefore, when the aperture plate 25 is positioned upward, it is closed, and when the aperture plate 25 is rotated downward, the engagement protrusion 24 comes into contact with the aperture guide rod 26 and pushes the sleeve 23, which also pushes the sleeve 23'', so that the mounting plate 20, 2, the aperture plate 21 is opened to the left and right and closed when the engagement is released. In the above-mentioned transplant machine, when the engine 2 is driven, the ground wheel 7 and the rotary disk 8 are rotated via the chain wheel 4, and the machine body is rotated. proceed.

At this time, the aperture plates 21, 21'' are closed at the top, so when a seedling is placed inside, it descends in a cycloidal curve and plunges into the soil.At this time, the guide rod 26 moves the aperture plate 21 2", so that seedlings are planted in the holes made by the aperture plates 21, 21". When changing the spacing between plants, loosen the bolt 16, remove the bolt 17, move the parallel rod 13, 13'' from a to b, and then tighten the bolts 16, 1 again.
Fix it at 7.

On the other hand, the transmission gear 5 is switched from the first stage to the second stage. By this operation, the distance from the center 0 of the rotating disk 8 to the aperture plates 21, 2'' is shortened, and the rotational speed is increased.Generally, the distance between plants is determined by, and in the present invention, the number of apertures is constant, and the return rate is is 0.93 to 0.87, so as mentioned above, A.b.c.
By changing the circumference of the rotating body, the desired spacing between the plants can be achieved.

The locus of the opening device drawn by this change is shown in Figure 3, and
By changing the circumference of the rotating body, the locus of the opening tool in the soil is as shown in Figure 4.A. b. There is no change even if you change it to c. Therefore, the planting posture remains constant even if the spacing between plants changes. The present invention is constructed as described above, and adjusts the distance between the transplanting plants that are transplanted in a cycloidal curve by combining the rotational speed of the rotating disk, the circumference of the rotating body, and the return rate.

Therefore, there is no need to prepare a separate device for changing between plants, and the work can be done simply by changing the attachment on the disk 8, making the work simple and of extremely high practical value.
The method and apparatus of the present invention can be used with great effect in tobacco transplanters, vegetable transplanters, and other field transplanters.

[Brief explanation of the drawings] Fig. 1 is an overall side view of the transplanter, Fig. 2 is a detailed view of the rotating circular plate, and Fig. 3 is the planting trajectory drawn by A.b.c in Fig. 2. Figure 4 shows the planting trajectory in the soil. Figure 5 is a front view of the opening device. 1... machine frame, 8...
・Rotating disk, 14...Mounting hole, 10...Opening device, 1
5... Fixing hole, 20... Mounting plate, 24... Engaging protrusion, 26... Opening guide rod.

Claims (1)

[Scope of Claims] 1. In a transplanting machine that plants seedlings while drawing a cycloidal curve on the field surface, the transplanting body is held downward by a parallel rod that rotates in conjunction with the running of the machine, and the rotation of the transplanting body is 1. A method for adjusting between plants of a transplanter, comprising adjusting the radius within a range of a return rate of the implant from 0.93 to 0.87. 2. A rotating disk that rotates in a vertical plane with different axes in conjunction with the grounding ring, multiple pairs of implant support arms attached radially to the disk, and a device suspended from the implant support arms. The disc has an implant support arm mounting hole at the near point of the center of the circle and a plurality of implant support arm fixing holes for changing the rotation radius at the far point. , a plant spacing adjustment device for a transplanter, in which a support arm is fixed by selecting a fixing hole at a far point;