JPH09271215A - Sowing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent bed soil or seeds in a seedling box placed on a conveyer from being spotted when a trouble is generated on a seedling box stacking device and the operation of a sowing machine is stopped. SOLUTION: On a conveyer 5 for successively sending plural seedling boxes 6, a bed soil supplier, sowing device, seedling box holder 14 and seedling box stacking device 15 or the like are arranged in this order and the seedling box holder 14 is provided so as to successively bring up the sown seedling boxes 6 sent toward the seedling box stacking device 15 from the conveyer 5, to hold them at prescribed intervals and to return these seedling boxes 6 to the conveyer 5 in reversed order.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in a seeding machine for supplying bed soil to a seedling box, sowing seeds in the bed soil, and then stacking seedling boxes.

[0002]

2. Description of the Related Art A seeding machine used in a seedling raising facility or the like puts the bed soil into a plurality of seedling boxes continuously fed by a conveyor with a bed soil supply device, sows seeds on the seed soil, and seedlings finished sowing. The boxes are designed to be stacked in a double box using a seedling box stacking device. In addition, before seeding, water may be sprinkled with an irrigation device, and then seeds may be covered with a soil cover device, or seeds may be covered with soil and then watered with a irrigation device.

[0003]

Since the bed soil supplying device and the seeding device have a step of dropping the bed soil and seeds by gravity, a malfunction occurs in the seedling box stacking device in operation, and the seeding device as a whole is When the operation is stopped and the trouble is removed and the operation is restarted, it becomes impossible to use it because the soil and seeds supplied to the seedling box on the conveyor when the operation is stopped have spots. The soil and seeds in the seedling box were discarded.

[0004]

In order to solve the above-mentioned problems, the present invention provides a conveyor 5 for continuously feeding a plurality of seedling boxes 6 to a floor soil supply device 8, a seeding device 11, and a seedling box holding device 1.
4, the seedling box stacking device 15 and the like are arranged in this order, and the seedling box holding device 14 sequentially lifts the seeded seedling boxes 6 sent toward the seedling box stacking device 15 from the conveyor 5 and holds them at predetermined intervals. Then, the seedling box 6 was used as a seeding machine provided so as to be returned to the conveyor 5 in the reverse order.

[0005]

In this seeder, the bed soil supply device 8 puts the bed soil into the plurality of empty seedling boxes 6 continuously sent by the conveyor 5, and the seeding device 11 puts the seeds on the bed soil. The seedling boxes 6 after sowing and sowing are stacked in a heavy box shape by the seedling box stacking device 15. When a problem occurs in the seedling box stacking device 15, the supply of empty seedling boxes 6 to the conveyor 5 and the operation of the seedling box stacking device 15 are stopped, and the operation of the seedling box holding device 14 is started. Then, at this time, the seedling box 6 on the conveyor 5 is continuously supplied with the bed soil by the bed soil supply device 8 and seeded by the seeding device 11, and these are placed under the seedling box holding device 14. Then, the conveyor 5 is sequentially lifted and held. When this ends, all operations are stopped. It should be noted that each operation may be automatically stopped when the final seedling box 6 has passed. After that, the malfunction of the seedling box stacking device 15 is removed, the operations of the seedling box stacking device 15 and the conveyor 5 are restarted, and the seedling box holding device 14 is reversed. Then, the seedling boxes 6 held by the seedling box holding device 14 are supplied onto the conveyor 5 in the reverse order of the lifting order, and stacked by the seedling box stacking device 14. When the seedling box 6 held by the seedling box holding device 14 is exhausted, the above-described reverse rotation operation is stopped, and the supply of the empty seedling box 6 to the conveyor 5 and the operation of the bed soil device 8 and the seeding device 11 are restarted. Simultaneously with the reverse operation of the seedling box holding device 14, or after a slight delay, the supply of empty seedling boxes is started, and immediately before the first one reaches the bed soil supplying device 8 and the sowing device 11, respectively. It can also be configured such that the operation is automatically resumed.

[0006]

As described above, according to the present invention, even if a problem occurs in the seedling box stacking device 15 and its operation is stopped, the seedling boxes 6 already on the conveyor 5 are not covered with soil. Seedling box 6 which was supplied and seeded continuously
Are temporarily held by the seedling box holding device 14, and the seedling box stacking device 1
When the operation of 5 is restarted, the seedling boxes 6 temporarily held by the seedling box holding device 14 are stacked by the seedling box stacking device 15. Therefore, the operation of the seedling box stacking device 15 is stopped (interrupted).
Then, the conventional waste of discarding the bed soil and seeds fed into the seedling box 6 on the conveyor 5 at that time is eliminated.

[0007]

Next, an embodiment of the present invention will be described. FIG.
As described above, the work room 1, the germination room 2, and the transshipment room 3 are arranged in order from the left in the seedling raising facility, and the seeder (seed plant) 4 is provided in the work room 1. The seeder 4 is configured as follows. As shown in FIGS. 2 and 3, the conveyor 5 is provided so as to move the seedling box 6 from right to left. A seedling box supply device 7 is provided on the right side of the conveyor 5, and one seedling box 6 is automatically placed on the conveyor 5 one by one from the lower end of the seedling box group A formed by stacking about 20 empty seedling boxes 6. It is designed to be extended. Bed soil supply device 8, first irrigation device 9,
Precision seeding device 10, seeding device 11, soil cover device 12, second
Watering device 13, seedling box holding device 14 and seedling box stacking device 1
5 are arranged on the conveyor 5 in order from the right. And
When sowing seed rice for paddy rice in the seedling box 6, the first irrigation device 9
When the seeding machine 4 is operated without operating the precision seeding device 10 and the seedling box 6 is seeded with vegetable seeds, the seeding device 4 is operated without operating the seeding device 11 and the second irrigation device 13. When there is no abnormality in the seedling box stacking device 15, the operation of the seedling box holding device 14 is stopped.
Therefore, in the former case, the seedling box supply device 7 is used to convey the conveyor 5
While the empty seedling box 6 that has been fed out is fed from the right to the left, the bed soil is supplied by the bed soil supply device 8 and seed rice is sown on the bed soil by the seeding device 11 to cover the soil. The seed paddy is covered with soil in the device 12, sprayed on them by the second watering device 13, and then reaches the seedling box stacking device 15. This seedling box stacking device 15 is composed of an elevating section 15a, a transfer section 15b and a stacking section 15c. The seedling box 6 which is sequentially sent is raised by the elevating section 15a and reaches the upper end. 6 is sent to the left by the transfer unit 15b, and the sent seedling boxes 6 are stacked on a forked hawk 16 in the shape of a heavy box. The stacked seedling boxes 6 are placed on a trolley and the germination chamber 2
When the seeds are germinated, the seeds are put on a shelf in the transshipment room 3 and transferred to the next edging room. In addition, the raising / lowering part 15a is comprised in substantially the same way as the seedling box holding | maintenance apparatus 14 demonstrated next.
The conveyor 5 can be made separately for each device, and if the left irrigation unit 13 and the left are high-speed type, a space is created between the left and right seedling boxes 6, and the elevating part 15a and the seedling box holding device are provided. The raising of the seedling box 6 by 14 becomes easy.

The seedling box holding device 14 is constructed as follows. As shown in FIGS. 3 and 4, the conveyor 5 is composed of a pair of front and rear belts 5a, and both ends of the seedling box 6 are projected (FIG. 4) to support the lower surface and feed the left side. A pair of driven shafts 17 have a vertically long machine frame 1 outside each belt 5a.
8 is mounted sideways. A pair of drive shafts 19 are attached to the machine frame 18 on the respective driven shafts 17, and are rotated by a motor 20 in the forward and reverse directions. Two toothed wheels 21 on each drive shaft 19 and driven shaft 17 (eight in total)
Is attached to each of the upper and lower toothed wheels 21 and the chain 22 is attached.
(4 in total) are wrapped around. A plurality of support plates 23 having an L-shaped cross section are horizontally attached to the left and right chains 22 at regular intervals. The support plates 23 facing each other at the front and rear are also arranged at the same height. And the front and rear driven shafts 17
Rotate counterclockwise and clockwise in Fig. 4 (motor 2
When 0 is forward rotation, the front and rear support plates 23 support the lower front and rear portions of the seedling box 6 and ascend, lifting approximately 10 seedling boxes 6 from the conveyor 5 in sequence and rotating in opposite directions (motor 20). Is reversed), the seedling box 6 that had been raised is lowered.

Therefore, if a problem occurs in the seedling box stacking device 15 of the seeding machine 4 in operation, the operation of the seedling box supplying device 7 and the seedling box stacking device 15 is stopped, and the motor 20 is rotated in the normal direction. The operation of the box holding device 14 is started. Then, to the seedling box 6 already on the conveyor 5, the bed soil is continuously supplied, the seed sowing, the covering soil and the watering are continuously performed without any delay, and the seedling box 6 after the series of sowing operations is finished. Hold device 1
When it reaches 4, it is sequentially lifted from the conveyor 5 by the left and right support plates 23. When the last seedling box 6 is lifted in this way, all operations of the seeder 4 are stopped. After that, the malfunction of the seedling box stacking device 15 is resolved, the operation of the conveyor 5 and the seedling box stacking device 15 is restarted, and the motor 2
Reverse 0. Then, the seedling boxes 6 lifted by the seedling box holding device 14 are sequentially lowered, transferred to the conveyor 5, and transported to the seedling box stacking device 15 to be stacked. When this is completed, the operation of the seedling box holding device 14 is stopped, and the seedling box 6
Operate all equipment for seeding rice seeds.

In carrying out the present invention, the operation of the seedling box supply device 7 and the seedling box stacking device 15 and the motor 20 are stopped.
The forward rotation start can be performed by operating the single switch. In addition, these can be provided so as to be automatically performed based on the detection of the malfunction of the seedling box stacking device 15. A stopper 25 is provided to the right of the floor soil supplying device 8 in FIGS. 2 and 3, the left end of the machine frame 18 and the elevating part 15a.
A, 25b, and 25c (25b is not shown) can be provided so that they can rise and fall, and they can be configured to stand up by the operation of the above switches. As is well known in the lifting section 15a, the motor 20 is provided so as to intermittently rotate forward, the detection sensor is provided on the right side of the stopper 25b, and the seedling box 6 is attached to the machine frame 18
When the detection sensor detects that the seedlings have been fed into the inside, the motor 20 rotates in the normal direction based on this detection, and the seedling boxes 6 can be lifted one step at a time.

The precision seeding device 10 is constructed as follows. As shown in FIG. 5, a plurality of trapezoidal pots 26 a arranged side by side in the front-rear and left-right directions are integrally molded to form a pot sheet 26, which enters the seedling box 6 and is conveyed from right to left by the conveyor 5. Each pot 26a has a seed hole 2 on the upper surface.
6b, when passing through the soil supply device 8, the pot 2
Soil is put in 6a and in the front, back, left and right valleys (Pot 2
Soil is supplied into the 6a through the seeding holes 26b). Saucer 2
7 are arranged long in the front and rear, and the seeds in the tank 28 are supplied by a pipe 29. The operating frame 30 is provided so as to reciprocate up and down by an air cylinder 31, and the same number of forming tools 32 as the front and rear pots 26a are attached to the left and right two rows, and when descending, the forming tools 32 project from the seeding holes 26b and the pots 26a. A concave portion having a V-shaped cross section is formed on the soil inside. A seeding nozzle 33 is similarly arranged on the actuating frame 30 to the left of the molding tool 32. A hopper 34, which is a multiple of the front and rear pots 26a, is provided on the right of the pan 27,
Flexible hose 3 to each corresponding sowing nozzle 33
5 are connected. The same number of suction nozzles 37 as the number of hoppers 34 are attached to the swing frame 36, and the lower end reciprocates between the receiving tray 27 and the hopper 34, air is sucked on the receiving tray 27 and sucks the seeds in the receiving tray 27, It is designed to blow off the seeds on 34. The seed blown off on the hopper 34 picks up the hose 35 and reaches the seeding nozzle 33, which, together with the molding tool 32, blows the air cylinder 31.
And the molding tool 32 is sown in the recess made in the previous lowering step.

The receiving tray 27 has a V-shaped valley portion 27a having a steep inclination in the center thereof, and slopes 27b having a gentle inclination are connected to the left and right sides thereof. Therefore, Chinese cabbage and other small-sized round seeds enter the valleys 27a in the same state, are adsorbed one by one to the respective adsorption nozzles 37, and are accurately sown. On the other hand, when large and flat seeds such as squash and cucumber are put in this saucer 27, the seeds are inclined or stood up along the steep slope of the deep valley 27a. The suction nozzle 37 may hit the surface diagonally and the seed may not stick. In order to solve this, the configuration as shown in FIGS. 6 and 7 can be adopted. That is, an arc-shaped auxiliary plate 38 having a large upper surface is detachably attached to the tray 27 with a screw 39 or the like so as to close the valley 27a. Then
The flat surface is laid down along the large arc on the upper surface of the auxiliary plate 38, and the flat upper surface is sucked by the suction nozzle 37, so that the seeds are sown accurately one by one.

A dehydrator can be provided in the seedling raising facility. That is, as shown in FIG. 1 and FIG.
0 is installed in a seedling raising facility, and seed rice is placed in a container 41 whose side wall is made of mesh, and is carried by a lift 42 onto it.
When the paddy soaked in it contains enough water, it can be lifted up. Floor 43 of budding room 2 (others are acceptable)
A pit 44 is dug in the pit 44, and a table 46 that is rotated by a motor 45 around a central vertical axis is provided at the same height as the floor 43. The container 41 is placed on the center of the table 46, and its four corners are fastened by the wires 47. A plurality of casters 48 support the peripheral portion of the table 46, and the water in the pit 44 is drained by a drain pipe 49. Therefore, the seed paddy soaked in the seed water tank 40 together with the container 41 is placed on the table 46 together with the container 41, and is rotated by the motor 45 to shake off the attached water. After that, it stays in the germination chamber 2 together with the container 41 to be germinated and supplied to the seeding device 11. According to this apparatus, seed rice is soaked, dehydrated and germinated in a state where the seed rice is contained in the container 41.
There is no need to take it out from 1, and the man-hours are greatly reduced.
Further, when the rotating table 46 is provided in the germination chamber 2,
This is more effective because the movement path of the container 41 can be shortened.

When growing a seedling using a tray, if a seedling having a large number of cells is used, the seedling becomes too long. On the contrary, if a seedling having a small number of cells is used, the root pot is not sufficiently formed. . In order to eliminate this, the following configuration can be adopted. As shown in FIG. 9, FIG. 10, and FIG. 11, a large number of recesses 50a are provided on the tray 50 side by side in the front-rear and left-right directions, and cups 51 are placed in the respective recesses 50a. Irrigate. After a lapse of a predetermined number of days, the seedlings germinate and the seedlings 52 grow (FIG. 9). On the way, the seedlings 52 are thinned out in a zigzag pattern together with the cup 51 (see FIG. 1).
0), put in another tray 53 with a space. Then
Tray 50 with thinned seedlings 52 and thinned seedlings 52
The tray 53 to which the seedlings have been transferred has a wide space between the left and right and the front and rear seedlings 52, so that the seedlings 52 can grow strong without being lengthy, and since the respective cups 51 are small, the roots are entangled well and a root pot is well formed. Therefore, the machine transplant is easily performed.

[Brief description of drawings]

FIG. 1 is a plan view of a seedling raising facility provided with a seeder according to the present invention.

FIG. 2 is a front view of a part (right half) thereof.

FIG. 3 is an enlarged front view of a part (left half) thereof.

FIG. 4 is an enlarged left side view of a part thereof.

FIG. 5 is a front view in which a part of the precision seeding device is cut.

FIG. 6 is an enlarged front view of a part thereof.

FIG. 7 is a left side view of the part.

FIG. 8 is a cut front view of the dehydrator.

FIG. 9 is a perspective view of a part of a tray for raising seedlings.

FIG. 10 is a perspective view of the cup and the seedling.

FIG. 11 is a perspective view of a part of another tray.

[Explanation of symbols]

 5 Conveyor 6 Seedling box 8 Bed soil supply device 11 Seeding device 14 Seedling box holding device 15 Seedling box stacking device

Continuation of the front page (72) Inventor Tetsuya Uchida, No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A conveyor 5 for continuously feeding a plurality of seedling boxes 6.
A bed soil supply device 8, a seeding device 11, a seedling box holding device 14,
The seedling box stacking device 15 and the like are arranged in this order, and the seedling box holding device 14 sequentially lifts the seeded seedling boxes 6 sent to the seedling box stacking device 15 from the conveyor 5 and holds them at predetermined intervals, A seeding machine provided to return the seedling box 6 to the conveyor 5 in the reverse order.