JPS6411245B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a row sowing device for seed rice, which is capable of performing row sowing accurately.

(Prior art) Japanese Patent Application Laid-Open No. 117518/1983 discloses a transfer table for transversely transporting a seedling-growing box filled with bed soil, and a device that acts on the upper surface of the seedling-growing box that is transversely transported by the transfer table. a rowing device having a rowing roller in which annular convex portions are arranged side by side at regular intervals to form a row-seeding groove on the top surface of the bed soil, and a seeding device having a hopper and a feed-out roll for supplying paddy to the row-seeding groove. A row sowing device for seed rice having the following is disclosed.

(Problems to be Solved by the Invention) The pine seedlings with soil that are attached to a rice transplanter and transplanted are grown by sowing seeds in a seedling raising box. The pine seedlings with soil are required to grow uniformly from corner to corner so that no stubble occurs.

There are two types of pine seedlings with soil: scattering (sanpan, haramaki) and row sowing (jiyohan, sujimaki).
Since row sowing produces better growth than scattering, research on row sowing is being actively conducted.

Row sowing in a seedling raising box is a method in which, when seed rice is sown on the bed soil sowing surface of a seedling raising box, rows are attached to the sowing surface in advance and the seed rice is sown within the rows. The above-mentioned known example makes this possible.

However, even if row-sowing furrows are formed on the sowing surface of the bed soil and the seeds are sown in the furrows, the seeds are not necessarily sown in the center of the furrows, and in most cases, the seeds can only be sown in rows. It is something.

This is because it is difficult to sow only in the center, and when sowing at the edges, the rows on the sowing surface of the bed soil are made of soft sieved soil, so they tend to roll toward the center. This is because the phenomenon of falling is almost never observed.

Therefore, the present invention has been devised so that the seeds sown at the edges roll down toward the center.

(Means for Solving the Problems) The present invention includes a transfer table 2 for transversely transporting a seedling-growing box 1 filled with bedding soil, and a transfer table 2 that acts on the upper surface of the seedling-growing box 1 that is transversely transported by the transfer table 2 to form a bed. A rowing device 4 having rowing rollers 14 in which annular convex portions 13 forming row-seeding grooves 3 on the soil surface are arranged side by side at regular intervals, a hopper 15 that supplies seed rice to the row-seeding grooves 3, and a pay-out roll 16. In the row sowing device for seed rice having a seeding device 5, a position below the seeding device 5 and below the seedling growing box 1 that is transported horizontally is located at a position that is different from the direction in which the seedling growing box 1 is transported. A horizontal rotation shaft 17 in the orthogonal direction is installed, and the horizontal rotation shaft 1
7 reaches the bottom surface 19 of the seedling raising box 1 and the bottom surface 1
This is a seed rice row sowing device equipped with an elastic rod 18 that can be used to strike the rice seed.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of the whole, showing a transfer table 2 that can horizontally transport the seedling growing box 1 and a floor filled with the seedling growing box 1. A row setting device 4 that presses the soil surface from above to form row seeding grooves 3 on the bed soil surface, a sowing device 5 that sows rice seeds in the row seeding grooves 3, and a tapping device that lightly strikes the bottom of the seedling box 1 intermittently. It is formed by a device 6, a suppression device 7, and the like.

The transfer table 2 has a pair of left and right horizontal frames 8, 8 supported by supports 9,
A rotating shaft 10 is mounted between the horizontal frames 8 and 8 at a constant interval T in the transport direction, and rolls 11 made of rubber or the like are fitted to both ends of the rotating shaft 10. The seedling raising box 1 is moved by riding on the left and right rolls 11, 11.

When the seedling raising box 1 is placed on the rolls 11, 11, make sure that the seedling raising box 1 does not come off the horizontal frames 8, 8 too much.
The width of the horizontal frames 8, 8 is slightly wider than the left and right width of the seedling raising box 1, and the height of the upper part of the rolls 11, 11 is formed slightly lower than the upper surface of the horizontal frames 8, 8. The horizontal movement of the frame 1 is suppressed by the horizontal frames 8, 8.

The rowing device 4 is a device that forms parallel grooves on the top surface of the soil packed in the seedling raising box 1, and its lower end is pivoted to the protruding end of one rotating shaft 10 of the transfer table 2. A large number of annular protrusions 1 are provided at the tip of the arm 12.
3 are arranged in parallel, and the striped rollers 14 are attached to the shaft. A spring 15a is attached to the arm 12 so as to constantly pull the arm 12 downward, and a transmission mechanism such as a chain or belt is connected to the striped roller 14 to form a driving type.

That is, the seedling raising box 1 is placed on the roll 11 and moved, but at this time, the rowing roller 1 for rowing is
If the roller 4 slips even a little, it will not be possible to form a beautiful striped groove 3. Therefore, in this device, the striped roller 14 is of a driven type, and its circumferential speed is made to be the same as the circumferential speed of the roll 11. Prevents slipping.

The seeding device 5 includes a seed hopper 15, a feed roll 16, and the like. In addition, in some cases, so that the seed rice fed out by the feeding roll 16 is guided into the row seeding groove 3 as accurately as possible,
A guiding device for guiding the seed rice to the row seeding groove 3 is provided below the feed roll 16.

The beating device 6 is configured to ensure that the seed rice sown by the sowing device 5 is positioned correctly in the center of the row sowing furrow 3.
This is a device for steadily tapping the bottom surface 19 of the seedling raising box 1, and although it would be sufficient to provide a hitting rod that moves up and down alternately with a cam mechanism, it is of a rotary type in order to simplify cleaning the device.

That is, a horizontal rotation shaft 1 in the horizontal direction horizontal to the transfer direction of the seedling box 1 is located below the feeding roll 16.
7, and a plurality of elastic rods 18 are attached to the outer peripheral surface of the horizontal rotating shaft 17. The elastic rod 18 can be used by hitting the bottom surface 19 of the seedling box 1 to vibrate the soil, so elastic rubber or a coil spring may be used.

It is more effective to rotate the horizontal rotating shaft 17 fairly quickly, so it is rotated by a dedicated motor or belt transmission, and when the horizontal rotating shaft 17 rotates, an elastic rod attached to the horizontal rotating shaft 17 Numeral 18 elastically strikes the bottom surface 19 of the seedling raising box 1 to transmit vibrations to the bed soil inside the seedling raising box 1, thereby guiding the seed rice sown in the row sowing groove 3 to the center of the row sowing groove 3.

The suppression device 7 has a suppression roll 2 at the tip of the arm 20.
1 is mounted on a shaft, and the arm 20 is pulled downward by a spring 22. This suppression roll 2
1 is also formed into a driving type, and compacts the bed soil in the seedling raising box 1.

(effect) Next, we will discuss the effect.

The present invention has the above configuration, and when the seedling raising box 1 is placed on the rolls 11, 11 on the starting end side of the transfer table 2 and the rolls 11, 11 are rotated by energizing the motor, the seedling raising box 1 is moved. At this time, the annular convex portions 13, 13 of the row roller 14 form a row sowing groove 3 on the surface of the bed soil of the seedling raising box 1.

As you move further forward and reach below the feed roll 16,
The seed rice fed out from the feeding roll 16 falls into the row sowing groove 3 and is sown in rows. In this case, as shown in FIG. 7, the seed rice is often not sown in the center of the row-seeding furrow 3 but rather off-centered. A horizontal rotation shaft 17 is provided in the left-right direction horizontal to the horizontal rotation shaft 17, and a plurality of elastic rods 18 are attached to the outer peripheral surface of the horizontal rotation shaft 17, and the bottom surface 19 of the seedling raising box 1 is struck by the elastic rods 18. With this structure, vibrations are applied to the bed soil, and the seed rice sown in the row sowing furrow 3 is guided to the center of the row sowing furrow 3.

(Effects) Conventionally known Japanese Patent Application Laid-Open No. 53-117518 discloses a transfer table for transversely transporting a seedling-growing box filled with bed soil, and a method that acts on the upper surface of the seedling-growing box that is transversely transported by the transfer table. A rowing device has a rowing roller in which annular convex portions forming row-seeding grooves are arranged side by side at regular intervals on the top surface of the bed soil, and a seeding device has a hopper and a feed-out roll for supplying the seed rice to the row-seeding grooves. A row sowing device for seed rice is disclosed.

In the known example, row seeding grooves are formed on the bed soil seeding surface,
Even if seed rice is sown in the groove, it is not necessarily sown in the center of the groove, and in most cases it can only be sown in rows. This is because it is difficult to sow only in the center, and when sowing at the edges, the rows on the sowing surface of the bed soil are made of soft sieved soil, so they tend to roll toward the center. This is because the phenomenon of falling is almost never observed.

However, the present invention includes a transfer table 2 for laterally transporting the seedling raising box 1 filled with bed soil, and a method that acts on the upper surface of the seedling raising box 1 that is transported laterally by the transport table 2 to form row seeding grooves 3 on the upper surface of the bed soil. A striation device 4 having a striation roller 14 in which annular convex portions 13 are arranged in parallel at regular intervals.
and a seeding device 5 having a hopper 15 and a feed roll 16 for supplying rice seeds to the row seeding groove 3.
In the seed rice row sowing device having a row sowing device, a horizontal position in a direction perpendicular to the transport direction of the seedling growing box 1 is located at a position below the seeding device 5 and below the seedling raising box 1 which is transported horizontally. The horizontal rotating shaft 17 is equipped with an elastic rod 18 that can reach the bottom surface 19 of the seedling box 1 and strike the bottom surface 19. 17 rotations, the seedling box 1 is rotated by the elastic rod 18.
By hitting the bottom surface 19 of the seedbed and applying vibration to the soil bed, the seed rice sown in the row sowing furrow 3 can be guided to the center of the row sowing furrow 3. Moreover, since it is a rotating mechanism, it can be implemented with the simplest structure.

[Brief explanation of the drawing]

Figure 1 is a side view of the whole, Figure 2 is a vertical side view of the same, Figure 3 is a vertical front view of the rowing device and seedling raising box, Figure 4 is a vertical front view of the seedling raising box and beating device, Figure 5 6 is a side view of the rotating shaft and roller, FIG. 7 is a diagram of the sowing state before beating, and FIG. 8 is a diagram of the sowing state after beating. Explanation of symbols, 1...Seedling raising box, 2...Transfer table, 3
... row seeding groove, 4 ... rowing device, 5 ... seeding device,
6... hitting device, 7... suppressing device, 8... horizontal frame,
9... Support column, 10... Rotating shaft, 11... Roll,
12... Arm, 13... Convex ring, 14... Lined roller, 15a... Spring, 15... Hopper, 1
6...Feeding roll, 17...Horizontal rotating shaft, 18...
...Elastic rod, 19...Bottom, 20...Arm, 21
... Suppression roll, 22 ... Spring.

Claims (1)

[Claims] 1. A transfer table 2 for laterally transporting the seedling raising box 1 filled with bed soil, and the seedling raising box 1 being transported laterally by the transfer table 2.
A rowing device 4 having rowing rollers 14 in which annular convex portions 13 that act on the upper surface to form row-seeding grooves 3 on the upper surface of the bed soil are arranged in parallel at regular intervals; and a row-setting device 4 that supplies seed rice to the row-seeding grooves 3. In the row sowing device for seed rice, which has a hopper 15 and a seeding device 5 having a feed-out roll 16, the seedling raising box 1 is located at a position below the seeding device 5 and is transported horizontally. A horizontal rotating shaft 17 is installed in a direction perpendicular to the transport direction of the box 1, and an elastic rod 18 that can reach and hit the bottom surface 19 of the seedling raising box 1 is attached to the horizontal rotating shaft 17. Row seeding equipment.