JPH0239810A - Suction type sowing device - Google Patents

Abstract

PURPOSE:To prevent seeds to remain in seed-sucking openings by disposing two raking-out brushes on the outer surface side of the seed-sucking openings wherein one of the raking-out brushes is placed at a position front from a nozzle and the other at a position rear from the nozzle. CONSTITUTION:An air blower 50 in which a nozzle 61 is formed in proximity to the inner side surface of seed-sucking openings 8 is disposed in a blowing-off chamber 17. The first and second raking-out brushes 53 and 54 are disposed on the outer side surface of the seed-sucking opening 8 wherein the first raking- out brush 53 is positioned on the front side from the nozzle 61 and the second raking-out brush 54 on the rear side. Since the seeds are brushed with the first raking-out brush 53 before the blowing-off wind from the nozzle 61 is applied to the seeds, the fitting of the seeds rigidly fit into the seed-sucking openings are also weakened and subsequently blown off with the blowing-out wind to drop in a seed-dropping section 14. Remaining seeds not raked-out with the first raking-out brush 53 can be raked out with the second raking-out brush 54.

Description

[Detailed description of the invention] (Application field of industry-1-) The present invention relates to a suction type 41144 device.

(Prior art) Conventionally known Japanese Unexamined Patent Publication No. 56-39703 and Japanese Unexamined Patent Publication No. 1987-52
- Publication No. 609 / Japanese Utility Model Application Publication No. 60-5312 Others include: Rotation of a horizontally rotating seeding roll with seed suction holes arranged in parallel at predetermined intervals on the circumferential surface - Seed supply to the outer circumference on the rising side Part 1iij is provided with a seed falling part on the outer periphery of the sowing roll on the F side, and the inside of the sowing roll has a suction chamber for adsorbing seeds from the seed supply part and a blowing chamber for blowing out the adsorbed seeds. A suction-type seeding device is described.

(Problems to be solved by the invention i & i) The above-mentioned known device has a structure in which the seeds in the seed adsorption hole are blown out by Suita wind from the blowing chamber in the seed falling part.
There was a problem that ultrafine seeds such as Chinese cabbage rarely fell, resulting in residual seeds.

Therefore, the purpose of this application is to prevent the generation of residual seeds.

(Means for Solving Problem 5) Therefore, the tree seedling 1 is produced by rotating the horizontally rotating seeding roll 6, which has seeds f and suction holes 8 at a predetermined interval a on one circumferential surface.
The seed supply unit 13 is attached to the outer periphery of the +iii sowing roll 6.
A seed dropping section 14 is provided on the lower outer periphery of the sowing roll 6, and a suction chamber 16 for adsorbing seeds from the seed supply section 13 and a blowing chamber for blowing out the adsorbed seeds! In the suction type seeding device formed with 7, the blowing chamber 1
7 is provided with an air jetting body 50 having a nozzle 61 close to the inner surface of the seed suction hole 8,
A first scraping brush group and a second scraping brush 5 are provided on the outer surface side of the
4, the first scraping brush blade is located in front of the nozzle 61, and the second scraping brush blade is located in front of the nozzle 61.
This is a suction-type seeding device located further to the rear.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. 1 is a supply hopper of a seeding device, 2 is a vertical plate of the supply hopper 1, and 3 is a bottom plate, and the lower end of the vertical plate 2 and the bottom plate 3 are A seed supply 1''4 is formed between the upper surface and the upper surface. Reference numeral 5 denotes a feed port cylindrical plate that determines the size of the seed feed port 4.

A sowing roll 6 rotating on a horizontal axis is provided diagonally below the seed supply port 4. The roll part 7 of the seeding roll 6 is formed into a cylindrical body by a synthetic resin, and the seed adsorption holes 8 are formed on the circumferential surface of the roll part 7. The seed adsorption holes 8 are formed with prepared seeds such as unhulled rice or Chinese cabbage. They are formed to match the outer diameter of the coated seeds obtained by coating the surface of seeds of ultrafine particles, and are formed at predetermined intervals in the generatrix direction and circumferential direction of the roll portion 7. The seed suction hole 8 is formed in a perfect circular shape when viewed from the L direction, and its cross-sectional shape forms an inclined surface 9 whose diameter gradually becomes smaller toward the center of the seeding roll 6. #,
A seed fitting part 10 having the same diameter from beginning to end is formed on the back side of the inclined slope 9, and a communication port 11 communicating with the inside of the roll part 7 is formed on the back side of the seed fitting part 10. The communication port 11 is for sucking seeds into the seed fitting portion 10 of the seed suction hole 8, and the inner diameter of the communication port 11 is as follows:
Form it to a smaller diameter so that seeds cannot pass through.

A mounting plate 12 is attached to the tip of the bottom plate 3, and the tip of the mounting plate 12 is brought close to the outer peripheral surface of the roll part 7, and the seed supply part 13 is connected to the mounting plate 12 and the outer peripheral surface of the roll part 7.
form.

A seed falling part 14 is formed below the sowing roll 6, and the seeds fit into the seed suction holes 8 in the seed supply 113 and move around the roll part 7 to the seed falling part 14, where the seeds fall i.
When it reaches '1ll14, the suction is released and it falls downward,
The structure is such that the seeds are sown into the bollard 5 that passes below the sowing roll 6.

Therefore, in the seeding roll 6, there is a suction chamber 16 for sucking the seeds into the seed suction hole 8 through the communication port 11 of the seed suction hole 8, and a suction chamber 16 for sucking the seeds into the seed suction hole 8 through the communication port 11 of the seed suction hole 8, and a suction chamber 16 for releasing the suction at the seed dropping section 14 to allow the seeds to fall. A blowing chamber 17 is formed for the purpose.

At the center of the sowing roll 6, a horizontal central cylinder 18 is provided, and below the central cylinder 18, a front rubber roll is provided which is in close contact with the outer peripheral surface of the central cylinder 18. The outer circumferential surface of the front rubber roll is brought into close contact with the inner circumferential surface 21 of the roll portion 7. A rear rubber roll 24 is provided on the side of the central axis ri 18 in close contact with the outer circumferential surface of the central shaft tube 18, and the outer circumferential surface of the rear rubber roll 24 is brought into close contact with the inner circumferential surface 21 of the roll portion 7.

The blowing chamber 17 is connected to the central shaft cylinder 18 and the front rubber roll 2.
0, the rear rubber roll 24, and the inner circumferential surface 21 of the roll part 7, each of the 19 parts of the contact, the 2 parts of the contact, the contact part 2, and the contact part,
From the seed falling section 14 in the sowing roll 6 to the seed supply section 1
The rotation of the roll part 7 up to 3' - is formed by the enclosed space on the H side.

Further, the suction chamber 16 is formed by a 19 part, a 2 part, a 23 part, and 6 parts of the central shaft cylinder 18, the front rubber roll, the rear rubber roll 24, and the inner circumferential surface 21 of the roll portion 7. , so that it is formed by a space other than the blowing chamber 17 surrounded by the downward rotation side of the roll part 7 from the seed supply part 13 to the seed drop part 14 in the sowing roll 6.

The center shaft cylinder 18 is formed of a metal cylinder, and flanges π, 5 are fixed to both left and right sides of the center shaft cylinder 18,
Both ends of the rotation shaft n in the left-right direction are attached to the flange 9. One end of the rotation shaft n is attached to the center of a vertical movable mounting plate provided in the seeding roll 6, and the other end is The seeding roll 6 is rotatably attached to the side plate (9) of the seeding device by protruding from a movable mounting plate provided inside the end surface of the roll portion 7 of the seeding roll 6.

The central axis 31 of the front rubber roll is connected to the movable mounting plate n.
and a bushing 33 in the long hole 1.32 formed in the movable mounting print.
, is fitted through the wings so that it can move freely in the front and back up and down directions.

Similarly, the center wing of the rear rubber roll 24 is loosely fitted into the elongated holes 35 formed in the movable mounting plate and the movable mounting plate via bushings so as to be freely movable in the front and rear 1-1 downward directions.

40 is a positioning roller, and a plurality of rubber rollers are fixed to the rotating shaft 41 at predetermined intervals, and the rubber roller 42 is brought into contact with the inner circumferential surface 21 of the roll portion 7. The positioning rollers have both ends of the rotating shaft 41 mounted on the movable mounting plate 29 via the eccentric cam 43 and the movable mounting plate 29.

That is, the positioning roller 4 is moved by the eccentric cam 43.43.
If you change the position of 0, the movable mounting plate will be moved to the roll part 7.
The front rubber roll and the rear rubber roll 24 are moved against each other.
The center shafts 31 and 34 of the rollers move through the long holes to bring the front and rear rubber rolls 24 and positioning rollers into close contact with the inner surface 21 of the roll portion 7, and The rear rubber rolls 24 are brought into contact with the outer circumferential surface of the central cylinder 18 to form the suction chamber 16 and the blowout chamber 17.

In the seeding roll 6, the roll part 7 is supported by the front rubber roll, the rear rubber roll 24, and the positioning roller, and only the roll part 7 rotates.

The front rubber roll 20, the rear rubber roll 24, and the positioning roller rotate at their respective positions as the roll part 7 rotates without changing their positional relationship with the roll part 7.

A rotary mounting plate 44 is fixed to the end face of the roll part 7 on the side of the movable mounting plate a with screws 45, a driving vehicle is fixed to the center of the rotating mounting plate a, and the driving vehicle is connected to the side plate 47 of the seeding device. A gear 48 is fixed to the drive shaft portion. Therefore, the seeding roll 6 is mounted on the side plate J and the side plate 47 of the seeding device by means of the drive shaft portion and the rotating shaft H.

49 is a suction port of the suction chamber 16, and is connected to a suction device. Reference numeral 50 denotes an air jetting body, which is installed horizontally within the blowing chamber 17, and the tip of the nozzle 61 is connected to the inner circumferential surface 2 of the roll portion 7! The base is connected to the air outlet 51.

Below the seed dropping section 14, there is provided a moving device area for the seedling raising box into which the box 15 is fitted.

A guiding case 52 for guiding seeds falling from the seed dropping part 14 is provided between the seed dropping part 14 and the W seedling box P.

Inside the guiding case 52, a first scraping brush and a second scraping brush are provided which fit into the seed suction hole 8 and scrape off seeds that do not fall. The first scraping brush is provided between the nozzle 61 between the front rubber roll 9 and the inner circumferential surface 21 of the roll portion 7, which are in close contact with each other, and the air jetting body, where the suction action is completed by the suction chamber 16.

The second brush stroke is provided on the rear side of the nozzle 61 in the rotational direction. The tip of the scraping brush should face the seed suction hole 8.

A leakage brush I is provided on the lower surface of the tip edge of the mounting plate forming the seed supply section 13. Applicable! i+
The brush I retains the seeds in the seed supply section 13 while preventing the seeds from leaking from the seed supply section 13.

Seed supply section on the upward rotation side from the leakage brush 5! 3, a first agitation brush 57 and a 21f agitation brush 57 are provided at intervals in the rotational direction of the seeding roll.

Both the first stirring brush group and the second stirring brush 57 scrape out seeds that do not fit into the inclined surface 9 of the seed suction hole 8 due to a bridging phenomenon.

Seeding roll 6 on the rotation upward side from the second stirring brush 57
A rotating brush group is provided above the seed suction hole 8 to return excess seeds not fitted into the seed suction hole 8 to the seed supply gl113 (Im).

1iii. The first stirring brush pickle and the second N stirring brush 57 are as follows:
The tips of the seed suction holes face the seed suction holes 8, and are formed by sparsely planting bristles I on the brush mounting plate with gaps approximately the same as the spacing between the seed suction holes 8. That is,
The seeds of the bridging phenomenon of the seed adsorption holes 8 that occur in
1. When scraped out by the stirring brush 57, other seeds fit into the seed adsorption holes 8 between the second stirring brush 57 and the rotating brush spool, so that the seeds are present around the second Wl stirring brush 57. and a seeding roll 6 that rotates with a gap of 1 m for the seeds to pass between the supernatant and the hair δ) (
Let it spin.

In addition, if the number of seeds on the mounting plate 12 decreases due to rotation with the rotating seeding roll 6, other seeds will not fit into the seed adsorption holes 8 after being scraped out by the first stirring brush 56.
The structure is such that the seeds swept back by the rotating brush group pass through the gap and return to the top of the mounting plate, and the seeds are swept back through the gap F between the hairs.
Always move Itf 66 in the direction of arrow A until the seed suction hole 8
is rotated for a long distance with 11JI seeds present and 5N
The mating time becomes longer and the mating is ensured.

Reference numeral 59 denotes a seal attached to the periphery of the movable mounting plate, and is provided on the side of the blowing chamber 17. Further, the movable mounting plate n
A seal mark is provided on the end face of the side roll portion 7 over the entire circumference.

(effect) Next, we will discuss the effect.

The present invention has the above-mentioned configuration, and a movable mounting plate 3 that does not rotate and a movable mounting plate are provided on both left and right sides of the sowing roll 6, and a center is located at the center of each of the movable mounting plate and the movable mounting plate 3. The rotation shaft n of the shaft cylinder is fixed, and the central shaft cylinder 18 is attached to the lower and side portions of the central shaft cylinder 18. A front rubber roll 24 and a rear rubber roll 24 are provided in close contact with the outer circumferential surface of the central shaft cylinder 18.
The seed falling part 14 in the sowing roll 6 is made of
A blowing chamber 17 is formed as an enclosed space on the upward rotation side of the roll part 7 extending from the seed supply part 13 to the seed supply part 13, and the central shaft cylinder 18, the front rubber roll, and the rubber roll 24 and each part of the roll part 7 are connected to each other. '4￥ I9 f'ffs, the close contact 22 part, the close contact n part, and the close contact 6 part encircle the rotation downward side of the roll part 7 from the seed supply part 13 in the sowing roll 6 to the seed falling ffi 1.4. A suction chamber 16 is formed by a space other than the blowing chamber 17, and the outer circumferential surface of the roll portion 7 of the seeding roll 6 is provided with a suction chamber 16 that communicates with the inside of the roll portion 7.
1 is formed, so when seeds are supplied into the supply hopper 1, the seeds are absorbed into the supply hopper 1.
from the seed supply port 4 to the seed supply section 13, where it is sucked into and fitted into the seed suction hole 8 of the roll section 7 of the seeding roll 6 rotating.

In this case, the central shaft cylinder 18 of No. 111 is pivoted at both ends of rotation @n to the revised movable mounting plate and movable mounting plate provided in the seeding roll 6, and each of the front and rear rubber rolls J, 24 The central axis 3L34 is connected to the movable mounting plate 28 and the movable mounting plate 6.
The elongated hole V formed in
A positioning roller ω is provided on the upper side between the two, and the positioning roller 40 connects both ends of the rotating shaft 41 to the movable mounting plate J and the movable mounting plate via eccentric cams 43 and 43. Therefore, when the position of the positioning roller 40 is changed by the eccentric cam center 43, the movable mounting plate δ moves with respect to the roll part 7, and the central axes 31 of the front rubber roll 20 and the rear rubber roll 24 are moved. , the blade moves inside the elongated hole, brings the front and rear rubber rolls 20, 24 and the positioning roller into close contact with the inner circumferential surface 21 of the roll part 7, and the front and rear rubber rolls 20, 24 Each of the central axis 1fil
The suction chamber 1 is in a sealed state in contact with the outer peripheral surface of the
6 and a blowing chamber 17 are formed.

Thus, a seed supply section 13 is formed by the leakage brush 55 on the lower surface of the tip edge of the mounting plate wa and the outer peripheral surface of the seeding roll 6. Since the brushes 57 are arranged in two rows, even if there are seeds that do not fit on the inclined surface 9 of the seed suction hole 8 due to a bridging phenomenon, they can be removed between the first stirring brush frame and the 282nd stirring brush 57. This ensures that the scraping 9 seed suction holes 8 suck other seeds.

In addition, the first +W stirring jib 99% second stirring brush 57 is
Both of them are formed by sparsely planting the bristles I on the brush mounting plate with approximately the same gap as the spacing between the seed suction holes 8, so that the seeds co-rotated with the rotating seeding roll 6 will not be able to pass through the gaps. The seeds passed through the gap to reach the vicinity of the second #g2 stirring brush 57, and the seeds swept back by the first rotating brush pass through the gap and return to the mounting plate 12 side, so that the seeds are evenly distributed in the seed supply section 13. Therefore, when the first agitation brush group and the second agitation brush 57 scrape out the seeds of the bridging phenomenon, other seeds can be immediately sucked into the seed suction holes 8. In other words, one seed always moves between the gaps between the hairs 6 in the direction of arrow A.

The seed suction hole 8 is rotated for a long distance while the seed is present, and the time for seed fitting becomes longer, thereby ensuring the seed fitting.

Thus, the seeds suction-fitted into the seed suction holes 8 reach the seed falling section 14 due to the rotation of the roll section 7.

When the seed suction hole 8 passes through the portion of the seed dropping portion 14 that is in close contact with the inner peripheral surface 21 of the roll portion 7, the suction from the communication port 11 of the first seed suction hole 8 is released, and the blowing chamber is closed. 17, it will be pushed out by the positive pressure of the Suita chamber 17.

Next, the air is blown out by a strong blowing air from the nozzle 61 of the air blowing body 50, but in the present invention, the air is rubbed by the first scraping brush before receiving the blowing air from the nozzle 61.
Since the tightly fitted seeds are also in a state where the fitting is weakened to some extent, they fall into the seed falling part 14 due to the blowing by the Suita wind.

Therefore, since a second scraping brush joint is provided on the rear side of the first scraping brush 8 in the rotational direction and on the rear side of the nozzle 61 in the rotational direction, the first scraping brush 8 and the nozzle 61
Seeds that are not blown out by the strong blowing wind are completely scraped out by the second scraping brush.

Seed falling part! 4 is provided with a moving device field for the seedling box dryer into which the box H5 is fitted, and the seed dropping section 14
Since a guide case 52 is provided between the seedling box P and the seedling box P to guide the seeds falling from the seed drop section 14, the seeds falling from the seed hole 8 are guided to the guide case 52. One to three seeds are dot-sown in each box H5 fitted in the seedling box which extends below the seed drop section 14 without scattering.

Therefore, 1) the suction chamber 16 and the blowing chamber 17 described in 1j are formed such that the front and rear rubber rolls 24 are always in contact with both the central shaft cylinder 18 and the seeding roll 6; The blowing chamber 17 is formed in a sealed state, and suction and blowing from each suction chamber 16 and blowing chamber 17 are performed satisfactorily.

(Effects) The present invention provides a seed feeding section 13 on the outer periphery of a rotating horizontal axis-rotating seeding roll 6 in which seed suction holes 8 are arranged side by side at predetermined intervals on the circumferential surface of the seeding roll 6. A suction type is provided in which a seed dropping section 14 is provided on the outer periphery of each side, and a suction chamber 16 for adsorbing seeds from the seed supply section 13 and a blowing chamber I7 for blowing out the adsorbed seeds are formed inside the sowing roll 6. In the seeding device, a nozzle 6 is provided in the blowing chamber 17.
1 is placed close to the inner surface of the seed suction hole 8, and a first scraping brush ferrule and a second scraping brush 8 are provided on the outer surface of the seed suction hole 8. ! The second LI brush 53 is located in front of the nozzle 61.
Since the exit brush is installed using a suction type seeding device located behind the nozzle 61, (1) it is rubbed by the first I exit brush 53 before receiving the air blown from the nozzle 61, so it is firmly fitted. Since the fitted seeds are also in a state where the fitting is weakened to some extent, most of them fall into the seed falling part 14 by being blown out by the blowing air.

Seeds that are not scraped out by the first scraping brush 53 can be scraped out by the second scraping brush.

(■ Seeds are scraped out by the first scraping brush blade, the blowing air from the nozzle 61, and the second scraping brush 9 at the 3tlR location.

No residual seeds will be produced.

This effect is achieved.

4. Explanation of the inside of the UA Figure 1 is a vertical side view of the entire device, fiSz is a vertical front view, Figure 3 is a perspective view of the scraping brush, and Figure 4 is a perspective view of the main parts.

Explanation of symbols 1... Supply unit bar, 2... Vertical plate, 3... Bottom plate,
4... Seed supply port, 5... Supply 11 control board, 6...
- Seeding roll, 7... Roll part, 8... Seed adsorption hole, 9... Inclined surface, 10... Seed fitting part, 11...
12...Mounting plate, 13...Seed supply section,
14...Seed falling part, 15...Bond,! 6...
Suction chamber, 17...Blowout chamber, 18...Center shaft cylinder, 19
...Close contact, 4...11f1 rubber roll, 21...
Inner peripheral surface, η...close contact, n...close contact, 24...rear rubber roll, ii...close contact, 26...flange, n...
・Fixed shaft, base, J...movable mounting plate, blade...side plate, 3
1...Central axis, support...elongated hole, imperial rule...bunyu, 3
4... Central shaft, 5... Long hole, Season... Positioning roller, 41... Rotating shaft, 42... Rubber roller 43.
... Eccentric cam, 44 ... Rotating mounting plate, 45 ... Screw, 46 ... Drive shaft, 47 ... Side plate, Punishment ... Gear,
49... Suction port, 50... Air ejector, 51...
Air outlet, father...induction case, 53...first scraping brush, name...second scraping brush, audience...l! Ithi brush, 56...first stirring brush, 57...second stirring brush, imperial order...rotating brush, 59, seki...seal.

6I... Nozzle, hole... Seedling raising box, 63... Moving device, -... Mounting plate, 6... Hair, mark... Gap.

Claims (1)

[Claims] A seed supply section 13 is provided on the outer periphery of the horizontally rotating sowing roll 6 on the upward rotation side, and a seed dropping section is provided on the lower outer periphery of the sowing roll 6, which has seed suction holes 8 arranged side by side at predetermined intervals on the circumferential surface. 1
4, and the inside of the sowing roll 6 has a suction chamber 16 for adsorbing seeds from the seed supply section 13 and a blowing chamber 17 for blowing out the adsorbed seeds. is provided with an air ejector 50 having a nozzle 61 close to the inner surface of the seed suction hole 8,
A first scraping brush 53 and a second scraping brush 54 are provided on the outer surface side of the seed suction hole 8, and the first scraping brush 53
The second scraping brush 54 is located in front of the nozzle 61.
is a suction type seeding device located behind the nozzle 61.