JPS63237708A - Seeding apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a seeding device for sowing seeds in a group of seedling raising containers.

(Prior art) In recent years, various automatic transplanters [1] have been developed to simplify transplanting work, but as automatic transplanters for general field crops,
The previously proposed method shown in Japanese Patent Application Laid-open No. 162203/1983 has demonstrated extremely great capabilities.

The previously proposed automatic transplanting machine uses a group of seedling growing containers 1 as shown in FIGS. 4, 5, and 6. That is, this seedling raising container group 1 is typified by vinyl pots (trade name), and a large number of seedling raising pots 2 are produced using a method such as a vacuum molding method made of relatively flexible and thermoplastic synthetic resin thin material such as vinyl chloride. made to do. and,
A large number of seedling pots 2 are arranged side by side at regular intervals vertically and horizontally by an upper plate 3, and have a flat bottom surface 4 and a side surface 5 that slopes downward.
Grooves 6.7 are provided vertically and horizontally between each two rows of seedling pots. To raise seedlings, fill each seedling pot 2 with soil 8, sow and water, and raise seedlings 9.
As described in the above-mentioned publication, the seedling raising container group 1 is transported, taken out by a seedling catching device, and seedling planting is carried out by feeding the seedlings to the device via a seedling feeding device.

By the way, to sow seeds in the seedling raising container group 1, for example, Jl11 seed 81 as shown in FIG. 7 is used. This seeding device includes a seed storage tank 1 surrounded by a side plate 11.
Through-holes 15 through which seeds 14 can pass are opened in the bottom plate 13 of No. 2 at a pitch that matches the pitch of the seedling-raising pots 2 of the seedling-raising container group 1. Further, on the lower side of the bottom plate 13, there is an arrow A.
, a middle plate 1G that can slide in the direction of B is provided, and this middle plate 16 has through holes 17 at the same pitch as the bottom plate 13.
are spaced. Furthermore, on the lower side of the middle plate 16,
A lower plate 18 is fixedly provided to the bottom plate 13, and through holes 19 are formed in the lower plate 18 at the same pitch as the bottom plate 13 and offset in the A and B directions.

In the illustrated state, the seeds 14 in the seed storage tank 12 pass through the through hole 15 of the bottom plate 13 and remain in the through hole 17 of the middle plate 16, but the seeds 14 in the seed storage tank 12 pass through the through hole 17 of the middle plate 16, but the middle plate 16 is moved in the direction of the arrow (rightward in the figure). the through hole 17 of the middle plate 16 and the through hole 19 of the lower plate 18.
When evening falls, seeds 14 pass through this hole 19 and are placed in each seedling pot 2.
The seeds fall onto the soil 8 and are sown as shown by the chain lines. Note that this seeding device is placed on top of the seedling raising container group 1 and operated by hand.

(Problems to be Solved by the Invention) When seeds are sown using the above-mentioned conventional seeding device, since the +/-8" - sides 20 of each seedling pot 2 are flat, it is difficult to carry or move the seedling container group 1, or when applying water. Seed 14 is likely to be transferred. As a result, the spacing between the seeds 14 is disturbed, and the seedling pot 2
The seedlings 9 will grow out of alignment with the center position. However, in the transplanting machine disclosed in Japanese Patent Application Laid-Open No. 58-162203, the seedlings 9 are grabbed at regular intervals between the seedling raising container group 1, the seedling catching device, the seedling feeding device, and the seedling planting device. Since the receiver 9 is used for transferring, if the position of the seedling 9 is disturbed as described above, the receiver 9 will make a mistake in transferring the seedling 9, making it difficult to expect normal planting.

The present invention has been made in view of the above-mentioned circumstances, and provides a seeding device that can reliably sow seeds in a predetermined position in a group of seedling-raising containers, and prevents mistakes in transferring seedlings in a transplanter and performs normal transplantation. The purpose is to

(Structure of the Invention) (Means for Solving Problems) The seeding device of the present invention includes a seeding hole forming 1N horizontal 21 that forms a seeding hole 81 in 20 parts of the upper surface of ±8 filled in the seedling raising container group 1, It is equipped with a feeding mechanism 51 for transporting the seedling raising container group 1 and a sowing mechanism 22 having a sowing plate 65 for dropping the seeds 14 held while moving into the sowing hole 81. The feeding direction of the seedling raising container group 1 by the feeding mechanism 51 and the feeding direction of the seeding plate 65 are made the same, and the feeding speed of the seedling raising container group 1 and the moving speed of the seeding plate 65 are made the same. be.

(Function) In the seeding device of the present invention, first, the seeding hole forming mechanism 21 forms 11 approximately mortar-shaped seed holes 81 in the upper surface 20 portion of the ±8 seedlings packed in the seedling raising container u1. In the next sowing process, the seedling raising container group 1 in which m seed holes 81 are formed is sent by the feeding mechanism 51, and the 11 seed plate 65 of the seeding mechanism 22 moves in the same direction and at the same speed as the seedling raising container group 1. Meanwhile, the seeds 14 held on the seeding plate 65 are dropped into the seeding holes 81. At this time, seedling raising container group 1 and seeding board 6
5 is in a relatively stationary state, so seeds 1
4 falls into the seeding hole 81 accurately. In addition, since the seeding hole 81 is approximately in the shape of a mortar, even if the drop position of the seed 14 is slightly deviated, the seed 14 will remain in a predetermined position.

(Example) Hereinafter, one example of the seeding device of the present invention will be described based on the drawings.

This seeding device includes a seeding hole forming mechanism 21 and a seeding mechanism 22.
It consists of First, the seeding hole forming mechanism 21 will be explained with reference to FIGS. 1 and 2.

23 is a conveyor as a feeding mechanism, and this conveyor 23
In this example, drum-shaped pulleys 25a and 25b are rotatably supported by support shafts 26a and 26b at both ends between a pair of frames 24 on both sides, and an endless belt 21 is hung around these pulleys 25a and 25b. The rotation of the motor 28 is transmitted to the pulley 25a on the right side in the figure via the sprocket 29, roller chain 30, and sprocket 31, and the belt 27 is rotated in the direction of arrow C.
It rotates in the direction of.

Further, a drum 36 is rotatably supported by a support shaft 37 between the frames 24 and located above the belt 27 of the conveyor 23, and 11I radiation is arranged on the outer peripheral surface of the drum 36 in the axial direction. A plurality of pointed conical protrusions 38 are attached at a pitch that matches the pitch of the seedling pots 2 of the seedling growing container group 1.

Further, the conveyor 23 and the drum 36 are connected to an interlocking mechanism 4.
1. This interlocking mechanism 41 includes a pulley 25b on the left side in the figure. A gear 42 is attached to the wedge-attached support shaft 26b, and a gear 43 that meshes with this gear 42 is attached to a support shaft 44 that is pivotally supported by the frame 24. A roller chain 47 is connected to a sprocket 45 wedged to the support shaft 44 and a sprocket 46 wedged to the support shaft 3γ of the drum 36, and as the pulley 25b rotates, The pitch of the protrusions 38 is synchronized with the pitch of the seedling growing pots 2 of the seedling growing container group 1, and the drum 36 rotates in the direction of the arrow. Note that both the gears 42 and 43 are connected to the pulley 25a.
, 25b to reverse the rotational direction of the drum 36.

Next, the discharging shuttle mechanism 22 will be explained with reference to FIG.

This seeding mechanism 22 also has a conveyor 51 as a feeding mechanism, but this conveyor 51 also has drum-shaped pulleys 52a, 52b, and It has shafts 53a, 53b and a belt 54, and the rotation of the motor 55 is caused by the rotation of the sprocket 56, [1-ra chain 51 and the sprocket 58.
is transmitted to the pulley 52a on the right side in the figure, and the belt 54 shown in F rotates in the direction of arrow E. Of course, as the belt 54 rotates, the pulley 52b on the left side in the figure also rotates. Note that the upper surfaces of both belts 27 and 54 are arranged so that the conveyed object, the seedling raising container group 1, is automatically transferred from the belt 21 of the conveyor 23 of the seeding hole forming mechanism 21 to the belt 54 of the conveyor 51 of the seeding i mechanism 22. You may contact the guide by taking a break.

Above the belt 54 of the conveyor 51 is a seed storage tank 6.
1 is provided. This seed storage tank 61 consists of a peripheral side plate 62 and a bottom plate 63, and a through hole 64 through which the seeds 14 can pass is bored in the bottom plate 63.

Also, below the bottom plate 63, there is a seeding plate 65 (arrow):
, G so as to be slidable in the direction of G, and the seeding plate 65 has the seedlings 1 superimposed on the through holes 64 of the bottom plate 63.
A through hole 66 is provided through which the number 4 can pass. Furthermore, the above 111! ? A lower plate 67 is fixedly provided on the lower side of the i-plate 65 with respect to the bottom plate 63, and the upper plate 67 has the seed sowing holes shifted from the through holes 64 of the bottom plate 63. The through holes 66 of the plate 65 are overlapped to form through holes 68 through which the seeds 14 can pass. And the said through hole 64.6
A plurality of 6 and 68 are provided in horizontal rows, arranged in a direction orthogonal to the directions of arrows G and F, and at a pitch that matches the pitch of the seedling growing pots 2 of the seedling growing container group 1.

Also, what are the conveyor 51 and seeding plate 65 of the seeding mechanism 22? They are interlocked by a moving mechanism 71. In this interlocking mechanism 71, a sprocket 72 is attached to a spindle 53b wedged to the pulley 52tl on the left side of the figure, and a sprocket 72 is wedged to the sprocket 72 and another spindle 73.
A roller chain 75 is wrapped around 4 and 4. Furthermore, Vp! on the same support shaft 73! The -@ portion of a connecting rod 78 is pivotally attached to the outer circumferential surface of the circular plate 76 with bolts 77, and the other end of this connecting rod 18 is attached to the Ill H plate 6.
It is pivotally attached to a fixing rod 79 fixed to 5 by a bolt 80. Then, as the pulley 52b rotates, the disc 7
6 rotates, and the connecting rod 18 which is a crank mechanism
The sowing plate 65 is sent through the ! It is something to exercise.

Furthermore, the link e mechanism 71 is configured to satisfy the following conditions.

That is, when moving in the direction of arrow F:, the sowing plate 65
The moving direction 1 of the seeding plate 65 and the speed at the time when the through hole 66 of the conveyor 5 overlaps the through hole 68 of the lower plate 61 are as follows.
This is the same as the feeding direction F and speed of the seedling raising container group 1 according to No. 4.

In order to satisfy this condition, for example, the following configuration may be used.

First, the rotation direction and rotation speed of the pulley 52b and the disc 76 are the same.

Second, the distance from the center of rotation of the disc 76 to the mounting position of the bolt 17 on this disc 76 is the radius r of the pulley 52b.
Make it the same as. Therefore, when the bolt 77 is located above the center of the disc 76, the moving speed of the seeding plate 65 becomes the same as the moving speed of the belt 54 of the conveyor 51.

Thirdly, the distance between the through hole 64 of the bottom plate 63 and the through hole 68 of the lower plate 61 in the front-rear direction (G-upward direction) is also equal to the distance #1llr from the center of the disc 76 to the mounting position of the bolt 77. Make it the same.

In this way, when the bolt 77 is located above the center of the disc 76, the through hole 6G of the seeding plate 65 is made to overlap the through hole 68 of the lower plate 67.

Further, the pitch of the seedling growing pots 2 in the seedling growing container group 1 and the circumference of the pulley 52b are made equal.

However, configurations that satisfy the above conditions are not limited to the first to third configurations described above. For example, pulley 52b
and disc 16 in the same direction, these pulleys 52
b and the rotation speed of the disc 76, the seeding plate 65
The mounting position of the bolt 17 on the disc 1B may be determined so that the speed at which the through hole 66 passes upwardly over the through hole 68 of the lower plate 61 is the same as the speed of the belt 54. Of course, the farther the bolt 71 is attached from the support shaft 13, the faster the seeding plate 65 moves.

Well, IC1 interlocking I! The I side itself is not limited to the interlocking mechanism 11 described in the above embodiment. In short, the conveyor 51 and the seeding plate 65 may be interlocked so as to satisfy the above conditions.

Next, the operation of the above seeding device will be explained.

This seeding device automatically sows seeds.

Forming seeding holes [on the belt 21 of the conveyor 23 of 121,
When the seedling growing container group 1 filled with ±8 in the seedling growing pot 2 is supplied in advance, the seedling growing container group 1 is transported in the direction of arrow C.

Then, as the seedling raising container group 1 is transported, the drum 36 rotates in the direction of the arrow, and the protrusion 38 of this drum 36 pierces the center of the upper surface 20 part of ±8 of each seedling raising pot 2, forming a mortar-shaped type. A hole 81 is formed.

Next, the seedling growing container group 1 in which the seeding holes 81 have been formed in this manner is supplied onto the belt 54 of the conveyor 51 of the seeding mechanism 22 and conveyed in the direction of arrow E.

Further, as shown in FIG. 3, when the through hole 66 of the seeding machine 65 is aligned with the through hole 64 of the bottom plate 63, the seeds 14 are inserted into the through hole 64 of the bottom plate 63 from inside the seed storage tank 61. and fits into the through hole 66 of the seeding plate 65. Next, this seeding board 65
is the same direction (
: Move to. Then, the through hole 6G of the seeding plate 65 is connected to the lower plate 6.
7, the speed of the seeding plate 65 becomes the same as the feeding speed of the seedling raising container group 1 by the conveyor 51, and the seeding hole 81 reaches just below the through hole 68 of the lower plate 61. , the seeds 14 held on the seeding plate 65 fall into the seeding hole 81 through the holes 68 of the lower plate 61.

Thereafter, the seeding plate 65 changes its direction of movement and moves in the direction of arrow G, returning to the state shown in FIG. go.

In this way, the seeding hole 8 of each seedling pot 2 of the seedling container group 1 is
1 will be sown.

By the way, when the seeds 14 fall, the feeding direction E and speed of the raised seedlings 11 group 1 are the same as the moving direction F and speed of the seeding plate 65, and the gap between the n seedling container group 1 and the seeding plate 65 is the same. Since there is no speed difference between the two, they remain relatively stationary. However, the seeds 14 held on the sowing plate 65 are relatively falling from the stationary sowing plate 65 toward the stationary sowing hole 81, so the seeds 14 can be placed extremely accurately. can be accommodated in the seeding hole 81.

In addition, since the seeding hole a1 is shaped like a mortar, seeds 1
Even if the seed 4 slightly deviates from the center position of the seeding hole 81 for some reason and falls, the seeds 14 will transfer the deflection of the mortar-shaped seeding hole 81 and will always be at the bottom of this seeding hole 81, that is, at a predetermined position. reach At the same time, the seeds 14 will not be displaced from the predetermined position even when the seedling raising container group 1 is transported or irrigated after sowing.

In other words, the precision of the sowing position has been achieved, and seedling raising container group 1
At J3, the spacing between the seeds 14 is maintained at an accurate and constant spacing, and even after the seeds 14 have germinated and grown into seedlings 9, the spacing between the seeds 9 is kept constant.

Therefore, when the seedling growing container group 1 is supplied to a transplanter that grasps the seedlings 9 at regular intervals and transfers the seedlings 9, there is no error in transferring the seedlings 9, and normal transplantation is performed. It is possible to ensure the performance of the transplant machine.

[Efficacy of invention Song Dynasty]

According to the present invention, a substantially mortar-shaped seeding hole is formed in the soil packed in the seedling-raising container group, and a seeding plate is used to drop the held seeds into the seeding hole while moving in the feeding direction and speed of the seedling-raising container group. Since the moving direction and speed are the same, it is possible to reliably sow seeds in the predetermined positions of the seedling container group, and the seeds are also reliably held in the designated positions even after sowing. Since the spacing between children and the spacing between each stroke after they grow can be kept constant,
For example, when transplanting is carried out using a transplanter that picks up seedlings at regular intervals and transfers the seedlings, normal transplantation can be achieved and this can greatly contribute to improving the performance of the transplanter.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of a seeding hole forming mechanism showing an embodiment of the type 1 device of the present invention, Fig. 2 is a plan view of the seeding hole forming mechanism shown in Fig. 1, and Fig. 3 is a side sectional view of the seeding mechanism. 4 is a perspective view showing an example of a group of seedling-raising containers used in the present invention, FIG. 5 is a plan view of the group of seedling-growing containers shown in FIG. 4, and FIG. 6 is a side view of the group of seedling-growing containers shown in FIG. 4. FIG. 7 is a side sectional view showing an example of a conventional Type 1 device. 1. Seedling container group, 8. Soil, 14. Seeds, 20-*
Upper surface, 21... Seeding hole forming mechanism, 22... Seeding i4
i! , 51...tall Toshitenokon Hair, 65
... Seeding board, 81... Seeding hole.

Claims (1)

[Claims] (1) A seeding hole forming mechanism that forms a substantially mortar-shaped seeding hole in the upper surface of the soil filled in the seedling raising container group, a feeding mechanism that transports the seedling raising container group, a feeding direction of the seedling raising container group by this feeding mechanism, and A sowing device comprising: a sowing mechanism having a sowing plate that causes the seeds held while moving in the same direction and at the same speed to fall into the sowing hole;