JPH0242905A - Seeding roll for suction type seeder - Google Patents

Abstract

PURPOSE:To surely engage seeds in seed attraction holes by arranging the seed attraction holes having a specific cross-sectional shape side by side on a peripheral surface of a roll part of a seeding roll. CONSTITUTION:Seed attraction holes 8 are arranged side by side at a prescribed interval in the generating line and circumferential directions of a roll part 7 of a seeding roll 6. The seed attraction holes 8 are formed into the shape of nearly true circle viewed from the upper side. The cross-sectional shape thereof has a seed guide tilted surface 9 in the inlet part, a seed engaging part 10, following the tilted surface 9 and nearly burying each seed, a tilted surface 67 on the interior side and a communication port 11 in the center of the tilted surface 67 therethrough.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a seeding roll for a suction type seeding device.

(Prior art) The conventionally known Japanese Utility Model Application Publication No. 60-5312 discloses that seeds are supplied to the outer periphery of a horizontally rotating seeding roll on the upward rotation side, in which seed suction holes are arranged in parallel at predetermined intervals on the circumferential surface. A suction type in which a seed falling part is provided on the outer periphery of the lower part of the seeding roll, and a suction chamber is formed inside the seeding roll to suck up the seeds from the seed supply part, and a blowing chamber to blow out the adsorbed seeds. In the seeding device, the seed suction hole is formed in an arc shape with a gentle slope on the front side in the rotation direction and a steep slope on the rear side in the rotation direction, and a communication hole in the center of the seed suction hole that communicates with the suction chamber and the blowing chamber. A seeding roll of a suction seeding device with a mouth formed therein is described.

(Problems to be Solved by the Invention) In the known method, the front side of the seed suction hole in the direction of rotation is formed in an arc shape with a gentle slope, and the rear side in the direction of one rotation is formed in an arc shape with a steep slope.
Since the structure does not have a straight wall, there is a problem that seeds that fit into the seed adsorption holes are scraped out by the brush that removes excess seeds, resulting in missing plants.

Therefore, the present invention is designed to ensure that seeds fit into the seed suction holes.

(Means for Solving the Problems) Accordingly, the present invention provides a seed supply unit 13 on the outer periphery of the horizontally rotating seeding roll 6 on the upward rotation side, in which seed suction holes 8 are arranged in parallel at predetermined intervals on the circumferential surface. Seed drop portions 14 are provided on the lower outer periphery of the seeding roll 6, and the seeding roll 6
Inside is a suction chamber 1 that adsorbs seeds from the seed supply section 13.
In the seeding roll of the suction type seeding device, which has a blowing chamber 17 for blowing out the adsorbed seeds and a blowing chamber 17 for blowing out the adsorbed seeds, the seed adsorption hole 8 forms a seed guiding slope 9 at the inlet portion which gradually becomes smaller in diameter toward the back, A seed fitting part 10 of a vertical wall in which the seeds are almost buried is formed following the seed guiding inclined surface 9, and a back inclined surface U is formed following the seed fitting part 10, the diameter of which gradually decreases towards the back. .

This is a seeding roll of a suction type seeding device in which a communication port 11 communicating with the inner surface of the seeding roll 6 is formed at the center of the rear inclined surface opening.

(Embodiment) To explain an embodiment of the present invention with the drawings, l is a supply hopper of a seeding device, 2 is a vertical plate of the supply hopper 1, and 3 is a bottom plate, where the lower end of the vertical plate 2 and the bottom plate 3 are connected to each other. A seed supply port 4 is formed between the upper surface and the upper surface. 5 is a supply port adjusting plate that adjusts the size of the seed supply port 4 [j].

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 made of synthetic resin, and the seed adsorption holes 8 form seed adsorption holes 8 on its circumferential surface. The surface of the seed is coated with ultrafine particles.It is formed to match the outer diameter of the seed.

They 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 substantially perfect circular shape when viewed from above, and its cross-sectional shape is such that its entrance portion forms a seed guiding inclined surface 9 whose diameter gradually decreases toward the back;
Next, a seed fitting part 10 of a vertical wall in which the seeds are almost buried is formed.Following the seed fitting part 10, a back sloped surface mouth whose diameter gradually becomes smaller towards the back side is formed, and the back sloped surface A communication port 11 communicating with the inner surface of the seeding roll 6 is formed at the center of the port.

The seed fitting portion 10 is formed to have a diameter that allows only one seed to fit, and a depth that allows most of the seeds to be buried, and is approximately perpendicular to the seeding roll 6 to prevent the fitted seeds from flying away. Formed on the wall of.

The seed fitting part 10 is formed by drilling with a drill, and on the back side of the seed fitting part 10, the back slope opening is formed, which matches the shape of the tip of the drill and gradually becomes smaller in diameter toward the back. be done.

The inner diameter of the communication port 11 is formed to be smaller than the seed fitting portion 10 so that the seeds do not pass therethrough.

A mounting plate l is attached to the tip of the bottom plate 3, and the mounting plate 1
The distal end of the seed supply section 2 is brought close to the outer circumferential surface of the roll section 7, and the seed supply section is formed by the provisional attachment and the outer circumferential surface of the roll section 7.

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 feeding part 13 and rotate together with the roll part 7 to the seed dropping part 14. 14, the suction is released and the bot 15 falls downward, so that the seeds are sown into the bot 15 passing below the sowing roll 6.

Therefore, in the sowing roll 6, there is a suction chamber 16 for sucking the seeds into the seed suction hole 8 from 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 shaft cylinder 18 is provided, and below the central shaft cylinder 18, a front rubber roll is provided which is in close contact with the outer peripheral surface of the central shaft cylinder 18. The outer peripheral surface of the front rubber roll is brought into close contact with the inner peripheral surface 21 of the roll portion 7. A rear rubber roll 24 that is in close contact with the outer peripheral surface of the central shaft cylinder 18 is provided on the side of the central shaft cylinder 18.
The outer circumferential surface of 4 is brought into close contact δ with the inner circumferential surface 21 of the roll portion 7.

The blowing chamber 17 is provided with 19 parts, 7 parts, n parts, and 25 parts of the central cylinder, the front rubber roll, the rear rubber roll 24, and the inner circumferential surface 21 of the roll part 7, respectively. From the seed falling section 14 in the roll 6 to the seed supply section 13
It is formed by an enclosed space on the rotationally rising side of the roll portion 7 that reaches .

Further, the suction chamber 16 is formed by a contact portion 19, a contact portion 7, a contact n portion, and a contact δ portion of the central shaft cylinder, the front rubber roll, the rear rubber roll 24, and the inner circumferential surface 21 of the roll portion 7. , from the seed supply section 13 in the sowing roll 6 to the seed falling section 14
It is configured to be formed by a space other than the enclosed blowing chamber 17 on the downward rotation side of the roll portion 7.

The central shaft cylinder (2) is formed of a metal cylinder, and flanges (3) are fixed to both left and right sides of the central shaft cylinder (2). wear 1
One end of the rotating shaft n is attached to the center of a vertical movable mounting plate j provided in the seeding roll 6, and the other end is attached to the center of the vertical movable mounting plate j provided in the seeding roll 6.
It is made to protrude from a movable mounting plate provided inside the end face of the roll part 7 and is rotatably attached to the side plate (9) of the seeding device.

The central axis 31 of the front rubber roll is a long hole formed in the movable mounting plate and the movable mounting plate! The bushing is loosely fitted to the support, allowing it to move freely in the front and back up and down directions via the wings.

Similarly, the central axis of the rear rubber roll 24 is fitted into the movable mounting plate and the elongated hole 5 formed in the movable mounting plate via bushings so as to be movable in the front and rear up and down directions.

The roller is a ranking roller, and a plurality of rubber rollers C are fixed to the rotating shaft 41 at predetermined intervals, and the rubber rollers C are brought into contact with the inner circumferential surface 21 of the roll portion 7. The positioning roller 41 has both ends of the rotating shaft 41 attached to the movable mounting plate 6 and the movable mounting plate 6 via eccentric cams 43, C.

That is, when the position of the positioning roller 40 is changed by the eccentric cams 4 and C, the movable mounting plates and plates move relative to the roll portion 7, and the central axes 31 and 34 of the front rubber roll and the rear rubber roll 24 are aligned. Long hole! , 35, and brings the front and rear rubber rolls 24 and positioning rollers into close contact with the inner circumferential surface 21 of the roll portion 7, and also brings each of the front and rear rubber rolls 24 into close contact with the inner circumferential surface 21 of the roll portion 7. The suction chamber 16 and the blowing chamber 17 are formed by contacting the outer circumferential surface of the tube 18 .

In the seeding roll 6, the roll part 7 is supported by the front rubber roll J, the rear rubber roll 24, and the positioning roller Tsukuda, and only the roll part 7 rotates, and the front rubber roll, the rear rubber roll 24, and the positioning roller 40 are supported by the front rubber roll J, the rear rubber roll 24, and the positioning roller 40. It rotates at each position by the rotation of the roll part 7 without changing the positional relationship with respect to the roll part 7.

A rotating mounting board is fixed to the end face of the roll part 7 on the side of the movable mounting board with screws 45, a drive shaft part is fixed to the center of the rotating mounting board a, and the drive shaft is attached to the side plate of the seeding device. 47, and a gear 48 is fixed to the drive shaft. Therefore, the seeding roll 6 is mounted on the side plate I and the side plate 47 of the seeding device by the drive shaft portion and the rotating shaft n.

49 is a suction port of the suction chamber 16, which is connected to the suction device. 50 is an air jetting body, and a blowing chamber 1 is provided between the air jetting bodies.
The tip of the nozzle 61 is formed close to the inner circumferential surface 21 of the roll portion 7 , and the base thereof is connected to the air outlet 51 .

A transfer device 8 for a hard seedling box into which the pot 15 is fitted is provided below the seed dropping section 14.

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

Inside the guiding case 52, a first scraping brush 8 and a second scraping brush 8 are provided which fit into the seed suction hole 8 and scrape off seeds that do not fall. The first scraping brush is connected to a portion 7 of the rubber roll π in close contact with the inner circumferential surface 21 of the roll portion 7 where the suction action is completed by the suction chamber 16, and a nozzle 6 of the air ejecting body (material).
1.

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

A leakage brush 5 is provided on the lower surface of the tip edge of the mounting plate forming the seed supply opening. The leakage brush 5 prevents seeds from leaking from the seed supply section 13.
Seeds are retained in the seed supply section 13.

At the seed supply port on the upward rotation side of the leakage brassica,
The first stirring brush group and the second stirring brush 57 are provided at intervals in the rotation direction of the seeding roll.

Both the first stirring brush group and the tj42 stirring brush 57 are
This is to scrape out seeds that do not fit into the seed guide 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 head is provided above the seed suction hole 8 to return excess seeds not fitted into the seed suction hole 8 to the seed supply section 13 side.

Between the first stirring brushes and the second Wl stirring brush 57, the tips of the bristles face the seed suction holes 8, and the bristles δ are placed on the brush mounting plate U with a gap I that is approximately the same as the spacing between the seed suction holes 8.
It is formed by sparsely planted. That is, when the second agitation brush 57 scrapes out seeds that are caused by the bridging phenomenon of the seed adsorption hole 8 that occurs rarely, other seeds may fit into the seed adsorption hole 8 between the second agitation brush 57 and the rotating brush blades. Therefore, in order to make the seeds exist around the second Wl stirring brush 57, a gap is formed between the bristles 5 and the bristles I to allow the seeds to pass through, and the bristles 5 and I are made to rotate together with the rotating seeding roll 6.

In addition, the mounting plate 12J rotates together with the seeding roll 6 that rotates once.
: If the number of seeds decreases, other seeds will not fit into the seed adsorption holes 8 after being scraped out by the first stirring brush group. The structure is such that the seeds swept back by the rotating brush pass through the gaps and return onto the mounting plate ν, and the seeds always move between the gaps between the bristles I in the direction of arrow A, and the seed suction holes 8 move over a long distance. The seed is rotated in a state where there is a gap between the seeds, so that the time for fitting the seeds is increased and the fitting is ensured.

Reference numeral 59 denotes a seal attached to the periphery of the movable mounting plate j, and is provided on the side of the blowing chamber 17. Further, a reseal 60 is provided on the end face of the roll portion 7 on the side of the movable mounting plate device over the entire circumference.

(effect) Next, we will discuss the effect.

The present invention has the above-mentioned configuration, and a non-rotating movable mounting board and a movable mounting board are provided on both left and right sides of the sowing roll 6, and the center is centered at the center of each of the movable mounting board and the movable mounting board. The rotating shaft n of the shaft cylinder is fixed, and a front rubber roll and a rear rubber roll 24 are provided below and on the side of the central shaft cylinder 18, which are in close contact with the outer circumferential surface of the central cylinder twist. The seed falling part in the sowing roll 6 is formed by applying the front rubber roll, the four parts in close contact with the inner circumferential surface 21 of the rear rubber roll 24 and the inner circumferential surface 21 of the roll part 7, the n part in contact, the n part in contact, and the three parts in close contact! A blowing chamber 17 is formed as an enclosed space on the upward rotation side of the roll section 7 extending from the seed supply section 13 to the seed supply section 13, and the blowing chamber 17 is formed as an enclosed space on the upward rotation side of the roll section 7, which extends from the seed supply section 13 to the seed supply section 13. 1
The roll from the seed supply section 13 in the sowing roll 6 to the seed dropping section 14 is formed by the 9 parts, the 22 parts, the 22 parts, the 3 parts, and the 3 parts. The enclosed blowout chamber 17 on the downward rotation side of B7
A suction chamber 16 is formed by the space other than that, and a seed suction hole 8 having a communication port 11 that communicates with the inside of the roll part 7 is formed on the outer peripheral surface of the roll part 7 of the seeding roll 6. 1, the seeds reach the seed supply section 13 from the seed supply port 4 of the supply hopper 1,
Seed supply i! At 113, the seeds are sucked into the seed suction holes 8 of the roll portion 7 of the rotating seeding roll 6 and fitted therein.

In this case, since the seed suction hole 8 has a seed guiding slope 9 formed at the inlet portion, the diameter of which gradually decreases toward the back, the seeds can be easily fitted into the seed suction hole 8.

Thus, the central axis extractor has both ends of the rotation axis n pivoted to the vertical movable mounting plate and the movable mounting plate 3 provided in the seeding roll 6, and each of the 24 central shafts 31 to the front and rear rubber rolls. .34 is a long hole formed in the movable mounting plate and the movable mounting plate! , 35 so as to be movable in the front and rear vertical directions, and a positioning roller 40 is provided in the upper part between the central shaft cylinder 18 and the seeding roll 6. Since both ends are pivotally attached to the movable mounting plate and the movable mounting plate via the eccentric cam 43, when the position of the positioning roller is changed by the eccentric cam 43, the movable mounting plate is attached to the movable mounting plate. is moved relative to the roll portion 7, and each central axis 31, 34 of the front rubber roll and the rear rubber roll 24 is moved relative to the roll portion 7.
is a long hole! , move the inner circumferential surface of the roll part 7 to bring the front and rear rubber rolls 24 and the positioning roller into close contact with the inner circumferential surface 21 of the roll part 7, and also bring each of the front and rear rubber rolls 24 into close contact with the inner circumferential surface 21 of the roll part 7. The suction chamber 16 and the blowing chamber are in contact with the outer peripheral surface of the chamber 18 and are sealed! form 7.

Thus, a seed supply section 13 is formed by the leakage brush 5 on the lower surface of the tip edge of the mounting plate and the outer peripheral surface of the seeding roll 6, and the seed supply section includes a first stirring brush group and a second stirring brush group. 57 are arranged side by side in two stages, so even if there are some seeds that do not fit on the seed guiding slope 9 of the seed suction hole 8 due to a bridging phenomenon, they can be removed between the first and second stirring brushes. 57 to ensure that the seeds are scraped out, and the seed suction holes 8 suck in other seeds.

In addition, both the first stirring brush enclosure and the second stirring brush 57 are formed by sparsely planting the ridges on the brush mounting plate with gaps approximately the same as the spacing between the seed suction holes 8.
The seeds that have rotated together with the rotating sowing roll 6 pass through the gap I and reach the vicinity of the second stirring brush 57, and the seeds that have been swept back by the rotating brush move pass through the gap and return to the mounting plate side. The seeds are evenly distributed in the seed supply section. Therefore, the first stirring brush group and the second Wl stirring brush 5
7, when the seeds with the blistering phenomenon are scraped out, other seeds can be immediately sucked into the seed suction holes 8. That is, the seeds always move in the direction of the arrow A through the gap marks in the hair, and the seed suction hole 8 rotates with the seeds present for a long distance, which increases the time for seeds to fit together and ensures secure fit. let

In this case, since the seed suction hole 8 is formed with a seed fitting part 10 of a vertical wall in which the seeds are almost buried, following the seed guide inclined surface 9, the seed suction hole 8 is rubbed by the stirring brush ring 57 and the rotating brush 8. Therefore, the seeds suction-fitted into the seed suction holes 8 are guided by the rotation of the roll part 7 and fall into the seed falling part! 4.

When the seed suction hole 8 passes through the part of the seed dropping section 14 that is in close contact with the inner circumferential surface 21 of the front rubber roll and the roll section 7, the suction from the communication port 11 of the seed suction hole 8 is released and the blowing chamber is closed. I'll be there on the 17th.

It is pushed out by the positive pressure of the blowing chamber 17, and is then blown out by the strong blowing air from the nozzle 61 of the air blowing body (equipment). Since the seeds are rubbed by the first scraping brush group, even the seeds that are tightly fitted are weakened to some extent, so that the seeds are blown out by the blowing air and the seeds are rubbed by the first scraping brush group.
Fall within 4.

Since the second scraping brush holder is provided on the rear side of the first fi extraction brush 8 in the rotational direction and on the rear side of the nozzle 61 in the rotational direction, the first scraping brush holder and the nozzle 6
Seeds that are not blown out by the first strong blowing wind are completely scraped out by the second scraping brush.

A moving device M63 for a seedling box dryer into which the bot 5 is fitted is provided below the seed dropping section 14.
Between 4 and the seedling box follower is the seed falling part! Since the guide case 4 is provided to guide the seeds falling from the seed suction hole 8, the seeds that have fallen from the seed suction hole 8 are guided by the guide case 8 and pass below the seed falling part 14 without being scattered. One to three seeds are dot-sown in each box (15) that fits into the seedling raising box.

Therefore, the suction chamber 16 and the blowing chamber 17 are formed so that the front and rear rubber rolls 24 are always in contact with both the center cylinder and the seeding roll 6, so that the suction chamber 16 and the blowing chamber 17 are formed so that the front and rear rubber rolls 24 are always in contact with both the central barrel and the seeding roll 6. 6 and the blowing chamber 17 are formed in a sealed state, and suction and blowing from each suction chamber 16 and the blowing chamber 17 are performed satisfactorily.

(Effects) In the present invention, a seed supply unit is installed on the outer periphery of the horizontally rotating sowing roll 6, which has seed suction holes 8 arranged side by side at predetermined intervals on the circumferential surface of the sowing roll 6. A suction-type seeding device is provided with a seed dropping section 14 on the lower outer periphery, and a suction chamber 16 for adsorbing seeds from the seed supply section 13 and a blowing chamber 17 for blowing out the adsorbed seeds inside the sowing roll 6. In the seeding roll of the device, the seed adsorption holes 8 are
A seed-guiding inclined surface 9 is formed at the entrance part, the diameter of which gradually decreases towards the back.Following the seed-guiding inclined surface 9, a seed fitting part 10 of a vertical wall in which the seeds are almost buried is formed. Continuing from 10, it is formed at the back sloped opening where the diameter gradually becomes smaller toward the back.
Since the sowing roll of the suction type seeding device has a communication port 11 that communicates with the inner surface of the sowing roll 6 formed at the center of the rear inclined surface opening, Since the seed guiding inclined surface 9 is formed to have a small diameter, it becomes easy to fit the seeds.

(2) Since the seed fitting part 10 of the vertical wall in which the seeds are almost buried is formed next to the seed guiding inclined surface 9, the fitted seeds will not come off even if rubbed with a brush.

(2) Since the seed fitting part 10 is formed with a rear inclined surface opening which gradually becomes smaller in diameter toward the rear side, the seed can be stably fitted into the seed fitting part 10.

14') The seed fitting part 10 can be easily formed since it is formed at the back side inclined surface opening which gradually becomes smaller in diameter toward the back side following the seed fitting part 10.

(C) Since the communication port 11 that communicates with the inner surface of the seeding roll 6 is formed at the center of the rear inclined surface port, in combination with the above structure, accurate seeding can be performed.

This effect is achieved.

[Brief explanation of the drawing]

Figure 1 is a vertical side view of the entire device, Figure 2 is a vertical front view,
FIG. 3 is a perspective view of the scraping brush, FIG. 4 is a perspective view of the main part, and FIG. 5 is a sectional view of the seed suction hole. Explanation of symbols 1... Supply hopper, ? ...Vertical board, 3...Bottom board,
4... Seed supply port, 5... Supply port adjustment plate, 6...
Seeding roll, 7...roll part, 8...seed adsorption hole,
9... Guide inclined surface, 10... Seed fitting part, 11...
・Communication port, 4...Mounting plate, 13...Seed supply section, 1
4... Seed falling part, 6... Pot, 16... Suction chamber, 17... Blowing chamber, 18... Center shaft cylinder, 19...
・Adhesion, π...Front rubber roll, 21...Inner peripheral surface, η
... Close contact, n... Close contact, 24... Back rubber roll,
δ...close contact, 漂...flange, n...fixed shaft, 3
．． 29...Movable mounting plate, I...Side plate, 31...Center shaft! ...long hole, feather...button, word...center shaft, ah...long hole, 40...positioning roller, 41.
...Rotating shaft, 42...Rubber roller, 43...Eccentric cam, U...Rotating mounting plate, 6...Screw, Tsuge...Drive shaft, 47...Side plate, Tsugi... Lucky car, 43...Suction port, (capital)...Air jetting body, 51...Blowout port, Father.
...Guidance case, connection...First scraping brush, 54...
2nd scraping brush, 55...Leakage+h brush, dipping...1st stirring brush, 57...2nd stirring brush, field...rotating brush, 59, mark...seal, 61... ·nozzle,
Dry...seedling box, 63...move? -...Mounting plate, 6...hair, seal...gap, nail...rear side slope.

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
In the sowing roll of a suction type seeding device, the seeding roll 6 is provided with a suction chamber 16 for adsorbing seeds from the seed supply section 13 and a blowing chamber 17 for blowing out the adsorbed seeds. The suction hole 8 forms a seed guiding inclined surface 9 whose diameter gradually becomes smaller towards the back at the entrance part, and a seed fitting part 10 of a vertical wall in which the seeds are almost buried is formed following the seed guiding inclined surface 9. Continuing from the seed fitting portion 10, a back sloped surface 67 is formed whose diameter gradually decreases toward the back, and a communication port 11 communicating with the inner surface of the seeding roll 6 is formed at the center of the back sloped surface 67. Seeding roll of type seeding device.