JPH0239809A - Suction type sowing device - Google Patents

Abstract

PURPOSE:To perform the suction and blowing-off of seeds to enable the precise sowing thereof by pivotally supporting a central shaft cylinder on two movable attaching plated on both the right and left sides of a sowing device, loosely fitting front and rear rubber rolls into the movable attaching plates and pivotally mounting a position-detemining roller on the movable attaching plate through eccentric cams. CONSTITUTION:When the position of a position-determining roller 40 is changed with eccentric cams 43 and 43, movable attaching plates 28 and 29 are moved with respect to a roll section 7 to transfer front and rear rubber rolls 20 and 24. The front and rear rubber rolls and the position-determining roll 40 are brought into tight contact with the inner peripheral surface of the roll member 7, respectively, and the front and rear rubber rolls are brought into tight contact with the outer peripheral surface of the central shaft cylinder 18, respectively, to form a closed sucking chamber and a closed blowing-off chamber. The suction and blowing-off of the seeds are perfectly performed to enable the precise sowing thereof.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a suction type seeding device.

(Prior art) In the conventionally known Japanese Utility Model Application Publication No. 58-100514, seeds are placed on the outer periphery of a horizontally rotating seeding roll that has seed suction holes arranged at predetermined intervals on the circumferential surface of the roll. The supply section is provided with a seed falling section on the lower outer periphery of the seeding roll, and
The inside of the sowing roll has a suction chamber for adsorbing seeds from the seed supply section and a blowing chamber for blowing out the adsorbed seeds, and a V-shaped plate member having a fixed position is provided in the rotating sowing roll. , a suction type seeding device is described in which the space inside the seeding roll is partitioned into a suction chamber and a blowing chamber by the plate member.

(Problems to be Solved by the Invention) The above-mentioned known device has a structure in which a plate member is provided inside the rotating seeding roll and partitioned into a suction chamber and a blowing chamber by the plate member. If the sowing roll is brought into close contact with the inner surface of the sowing roll, the sowing roll will not rotate due to resistance.
A slight gap is formed between the tip of the & member and the inner surface of the seeding roll. Therefore, there are imperfections in both suction and blowout.

Therefore, the present application solves the above problem.

(Means for Solving the Problems) Therefore, the present invention provides a rotation of a horizontally rotating seeding roll 6 having seed suction holes 8 arranged side by side at predetermined intervals on the circumferential surface. 13 and a seed falling part 14 are provided on the lower outer periphery of the seeding roll 6, and the inside of the seeding roll 6 includes a suction chamber 16 for adsorbing seeds from the seed supplying part 13 and a blowing chamber for blowing out the adsorbed seeds. In the suction type seeding device in which 11f1 and 17 are respectively formed, a rotatable small-diameter central shaft cylinder 18 is provided at the center of the seeding roll 6, and a door portion between the central shaft cylinder 18 and the seeding roll 6 is provided. On the opposite side, there is a freely rotatable front rubber roll and rear rubber roll.
4 and the central shaft cylinder! Positioning rollers 40 are respectively provided on the L side between the seeding roll 8 and the seeding roll 6, the central shaft cylinder 18 is fixed to the left and right movable mounting plates, and the front and rear rubber rolls 20, 24 are The movable mounting plate is fitted loosely into the movable mounting plate, and the positioning roller is mounted on the movable mounting plate via an eccentric cam 42.

(Embodiment) To explain one embodiment of the present invention with the drawings, ■ is a supply hopper of a seeding device, 2 is a vertical plate of the supply hopper l, 3 is a bottom plate, and the lower end of the vertical plate 2 and the bottom plate 3 are A seed supply port 4 is formed between the first and second surfaces. Reference numeral 5 denotes a supply port cylinder plate for adjusting the size of the seed supply port 4.

1111 A seeding 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 has seed adsorption holes 8 formed on its circumferential surface. 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 two directions, and its cross-sectional shape is formed with an inclined surface 9 whose diameter gradually becomes smaller toward the center of the seeding roll 6. On the back side of the inclined surface 9, there is a seed fitting part 1 having the same diameter from beginning to end.
0 is formed, and a roll part 7 is formed on the back side of the seed fitting part 10.
A communication port 11 is formed which communicates with the inside of the housing. The communication port 11
is for sucking seeds into the seed fitting part 10 of the seed suction hole 8, and the inner diameter of the communication port 11 is formed to be smaller than the seed fitting part 10 of No. 100, so that the seeds do not pass through. do.

+: A mounting plate wa is attached to the tip of the bottom plate 3 described in ii, and the tip of the mounting plate wa is brought close to the outer circumferential surface of the roll part 7, so that the seed supply 1- i111
form 3.

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 part 13 and rotate together with the roll part 7 to the seed falling part 14, and the seeds are rotated together with the roll part 7 until the seeds fall into 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, seeds are absorbed into the seed suction holes 8 through the communication ports 11 of the seed suction holes 8. A suction chamber 16 for suction and a blow 111 chamber 17 for releasing the suction at the seed dropping section 14 and dropping the seeds are formed.

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 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 is provided on the side of the central barrel 18 and is in close contact with the outer circumferential surface of the central barrel 18, and the outer circumferential surface of the rear rubber roll 24 is in close contact with the inner circumferential surface 21 of the roll portion 7.
let

1■I The blowing chamber 17 is connected to the central shaft cylinder 18 and the front rubber roller.
19 portions, 2 portions, n portions, and 25 portions of contact between the rubber roll 20, the rear rubber roll 24, and the inner circumferential surface 21 of the roll portion 7. It is formed by an enclosed space on the rotation l->1 side of the roll section 7 leading to the seed supply section 13.

In addition, the suction chamber 16 is formed by the center cylinder 18, the front rubber roll 20, the rear rubber roll 24, and the inner peripheral surface 21 of the roll portion 7. It is configured to be 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.

+iii The center tube 18 is formed of a metal cylinder, and flanges 9 and 26 are fixed to both left and right sides of the center tube 18, and one core flange 18 is attached to both ends of the rotation axis H in the left and right direction. One end of the one-rotation shaft n that is attached to the seeding roll 6 is attached to the center of a vertical movable mounting plate provided in the seeding roll 6, and the other end is provided inside the end surface of the roll portion 7 of the seeding roll 6. It protrudes from the movable mounting plate and is rotatably attached to the side plate I of the seeding device.

The central axis 31 of the front rubber roll is connected to the movable mounting plate n.
And the long hole formed in the movable mounting plate 3! 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 center axis of the rear rubber roll 24 is loosely fitted into the movable mounting plate and a long hole bushing formed in the movable mounting plate so as to be movable in the front and rear and up and down directions.

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

That is, when the eccentric cam center 43 changes the position of the positioning roller off, the movable mounting plate n, 2g moves relative to the roll portion 7, and the central axes 3, 4 of the front rubber roll 4 and the rear rubber roll 24 move. , the name is Nagako! .

The front and rear rubber rolls 20.24 and the positioning roller 40 are brought into close contact with the inner circumferential surface 21 of the roll portion 7, and each of the front and rear rubber rolls 24 is moved along the +iii center axis Hta. I'I in contact with the outer peripheral surface of 1
1fI A suction chamber 16 and a blowing chamber 17 are formed.

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 40, so that only the roll part 7 rotates, and the front rubber roll 20, the rear rubber roll 24, and the positioning roller 40 Roll without changing the positional relationship with the roll part 7! 'i'I17
Rotates at each position by rotation of .

A rotary mounting plate is fixed to the end face of the roll part 7 on the movable mounting plate n side with screws 45, and a drive shaft portion is fixed to the center of the rotary mounting plate 44, and the drive shaft portion is attached to the side plate of the seeding device. 47
The drive shaft is fixed to the drive shaft. Therefore, the seeding roll 6 is mounted on the side plate 47 of the seeding device by means of the drive shaft portion and the rotating shaft n.

49 is a suction port of the suction chamber 16, and is connected to a suction device. 50 is an air blowing nozzle, and the air blowing nozzle group is installed horizontally in the blowing chamber 17, its tip is formed close to the inner circumferential surface 21 of the roll part 7, and its base is connected to the blowing outlet 51. .

A moving device 63 for the seedling box into which the bot 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 seedling box g.

Inside the guiding case 52, a first scraping brush 53 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 close contact η between the rubber roll and the inner circumferential surface 21 of the roll portion 7, where the suction action is completed by the suction chamber 16, and the air outlet 61 of the air blowing nozzle. . The second scraping brush is provided on the rotational side -H from the air outlet 61.

Thus, the mounting plate 1 forming the seed supply section 13
A leakage brush 5 is provided on the lower surface of the tip edge of 2. The leak W
The brush 5 retains seeds in one seed supply section 13 so that the seeds do not leak from the seed supply section 13.

An 11'l stirring brush group and a second stirring brush 57 are provided at intervals in the rotational direction of the seeding roll in the seed supply section 13 on the upward rotation side from the rotation direction of the seed roll 1i1+tobrush δ.

Both the 11'l stirring brush group and the 2nd W/l 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.

111: A single-rotation brush group is provided above the seeding roll 6 on the rotationally upward side of the second stirring brush 57 to return excess seeds that are not fitted into the single-seed adsorption holes 8 to the seed supply section 13 side.

The tip of the t1η ill stirring brush % and the second Wl stirring brush 57 face the seed suction hole 8 with the tip of the upper part of the nucleus I facing the seed suction hole 8, and both are attached to the brush mounting plate so that the seed suction hole 80 interval and the approximately concave gap mark are attached. It is formed by sparsely planted. In other words, the seeds with the bridging phenomenon of the seed adsorption hole 8 that occurs infrequently are removed from the second
When scraped by the stirring brush 57, the second stirring brush 5
Since other seeds fit into the seed adsorption holes 8 between the bristles 65 and the rotating brush group, seeds are placed between the bristles 65 and the bristles I in order to make the seeds exist around the second stirring brush 57. A gap is formed to allow the material to pass through, and it is caused to rotate together with the rotating seeding roll 6.

In addition, if the number of seeds on the mounting plate 12 decreases as they rotate together with the rotating seeding roll 6, other seeds will not fit into the seed adsorption holes 8 after being scraped out by the 11th and 12th stirring brush sections.
Seeds swept back by the rotating brush pass through the gap 1106.
6 through the mounting plate and back onto the top, the seeds are covered with hair δ
The gap value is always moved in the direction of arrow A, and the seed suction hole 8 is rotated for a long distance while the seeds are present, so that the seed fitting time is increased and the seed fitting 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. In addition, the movable mounting plate 2
9 side roll? A reseal is provided around the entire circumference of the end face of B7.

(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 central shaft tube 18 is fixed, and a front rubber roll 20 and a rear rubber roll 24 that are in close contact with the outer circumferential surface of the central shaft n18 are provided below and on the side of the central shaft tube 18, and the central shaft tube 18 and The application of the front rubber roll, the rear rubber roll 24, the inner IJ surface 21 of the roll part 7, each contact 19 part, the contact η part, the contact n part, and the contact 3 part allow the seeds to be transferred from the seed falling part 14 in the sowing roll 6 to the seed supply part. ! A blowing chamber 17 is formed as an enclosed space on the rotational upward side of the roll portion 7 reaching 3.
The area surrounded by the downward rotating side of the roll part 7 from the seed supply part 13 to the seed falling part 14 in the sowing tool 6 is surrounded by the 19 parts of the contact, the contact η part, the contact n part, and the contact 25 parts. A suction chamber 16 is formed by a space other than the blowing chamber 17, and a roll portion 7 is formed on the outer peripheral surface of the roll portion 7 of the seeding roll 6.
A seed suction hole 8 is formed at the a'a opening 1 which communicates with the inside of the supply hole.

When seeds are fed into the bar 1, the seeds are fed into the feeding hole 7 par 1.
from the seed supply port 4 to the seed supply section 13.

The sowing roll 6 rotating in the seed supply unit 13 is sucked into the seed suction hole 8 of the roll part 7 and fitted into the seed suction hole 8 .

In this case, the center shaft tube 18 is pivoted at both ends of the rotating shaft n to a vertical movable mounting plate and a movable mounting plate provided in the seeding roll 6, and each center of the front and rear rubber rolls 20 and 24 is The shafts 31 and 34 are loosely fitted into the movable mounting plate n and a long hole formed in the movable mounting plate so as to be movable in the front and back directions, and are fitted in the upper part between the center sleeve tube 18 and the seeding roll 6. A positioning roller 40 is provided on the side, and the positioning roller 40 has both ends of a one-rotation shaft 41 pivotally attached to the movable mounting plate n and the movable mounting plate via an eccentric cam 43. When the position of the positioning roller 43 is changed by the eccentric cam holder 43, the movable mounting plate 29 moves relative to the roll part 7, and the central shafts 31 of the front rubber roll and rear rubber roll 24 are aligned with the elongated holes. ! , 35, and the front and rear rubber rolls 24 and positioning rollers 40 are attached to the inner circumferential surface 21 of the roll portion 7.
In addition, the front and rear rubber rolls are placed in close contact with each other, and each of the 24 rubber rolls is placed in the center shaft cylinder as described in 1ja! 8 to form a suction chamber 16 and a blowing chamber 17 in a sealed state.

Therefore, the seed supply section 13
is formed, and inside the seed supply section 13 is a first stirring brush I.
and the second stirring brush 57 are arranged in two rows, so even if there is a seed that does not fit on the inclined surface 9 of the seed suction hole 8 due to the bridging phenomenon, it can be removed by the 1712th stirring brush I and the second stirring brush 57. The seed suction holes 8 suck other seeds.

In addition, the first stirring brush enclosure and the second WI stirring brush 57 are formed by sparsely planting the bristles δ on the brush mounting plate with the spacing of the seed suction holes 8 and approximately concave gap marks. Therefore, together with the rotating seeding roll 6, 1+71 riL, ta seed r-1-417166woa-)-cfjs 21t
The seeds that have reached the vicinity of the ff brush 57 and are swept back by the 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, the seeds always move in the direction of the arrow A in the cracks of the exposed hair.
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 part of the lower part 14 that is in close contact with the front rubber roll J and the inner circumferential surface 21 of the roll part 7,
Communication port l of seed suction hole 8! As the suction is released, the blowout is released! 7, the iE HE of the electric blowout 4'1=17 is received and is pushed out, and then it is blown out by the strong blowing air from the air outlet 61 of the air blowing nozzle (equipment), but the unfired 14 , air outlet 6
Before receiving the Suita wind from 51: 51, the seeds are rubbed by the scraping brush 53, so that even the tightly fitted seeds are weakened to some extent, so that the seeds are blown out by the blowing wind and the seeds fall from all sides. It falls within 14.

Below the seed-/- falling part I4, there is provided a moving device area for the 1'1゛ bacteria box P into which the +Ni bot 15 is fitted.
iQki seeds falling i? Between 1114 and the seedling box U is the Moeki seed drop area! Since the guide case 52 is provided to guide the seeds falling from the single seed suction hole 8, the seeds that have fallen from the single seed adsorption hole 8 are guided by the guide case and pass through the lower part of the single seed falling part 14 If1 without being scattered. Seedling box 62
One to three grains are dot-seeded in each box 5 that fits into the hole.

Further, since there is a second scraping brush 54, seeds that are not scraped out by the first scraping brush can be completely scraped out.

However, +iQ suction chamber 16 and blowing chamber! Since the rubber roll 7 is formed so as to be in constant contact with both the central shaft cylinder 18 and the seeding roll 6, the suction chamber 16 and the blowing chamber 17 are formed in a sealed state. Suction and blowing from each suction chamber 16 and blowing chamber 17 are performed satisfactorily.

(Effects) The present invention provides a seed supply unit 13 on the outer periphery of the horizontally rotating sowing roll 6 on the upward rotation side, in which seed suction holes 8 are arranged side by side at predetermined intervals on the circumferential surface of the sowing roll 6. Seed falling portions t4 are provided on the outer periphery of the F side, and the seeding roll 6 of n17 is provided.
Inside is a suction chamber 1 that adsorbs seeds from the seed supply section I3.
6 and a blowing chamber 17 for blowing out the adsorbed seeds.
A rotatable small-diameter central shaft cylinder 18 is placed at the central position, a rotatable front rubber roll and a rear rubber roll 24 are placed at the lower side between the central shaft 018 and the seeding roll 6, and the central shaft [18 and the seeding roll 6, a positioning roller is provided on the near side, and the central shaft cylinder 18 has movable mounting plates 2B on both left and right sides, a shaft IE on the fourth side, and the front and rear rubber rolls J, 24. The movable mounting plate 28 and 29 are loosely fitted into the movable mounting plate 28 and 29, respectively, as described in 11.
Since this is a suction type seeding device that is mounted on the shaft via an eccentric cam C, ■ When the position of the positioning roller is changed by the eccentric cam 43, the movable mounting plate 43 is moved against the roll part 7. The inner peripheral surface 2 of the roll portion 7 is moved by moving the front rubber roll and the rear rubber roll 24! Front and rear rubber rolls 20.24
and the positioning roller 40 are brought into close contact with each other, and each of the front and rear rubber rolls 24 is brought into close contact with the outer surface of the central shaft tube 18 to form a sealed suction chamber 16 and a positioning roller 40, respectively. A blowing chamber 17 is formed.

(2) The suction chamber 16 and the blowing chamber 17 can be formed so that the rear rubber roll 20.24 is always in contact with both the center shaft end 18 and the seeding roll 6, so the suction chamber 16 and the blowing chamber 17 can be formed in a sealed state, allowing suction and
Perfect blowing allows for precise seeding.

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, and FIG. 4 is a perspective view of the main parts. Explanation of symbols 1... Supply hopper, 2... Vertical plate, 3... Bottom plate,
4... Seed supply port, 5... Supply port adjustment plate, 6...
Seeding roll, 7...roll part, 8...seed adsorption hole,
9... Inclined surface, 10... Seed fitting part, 11...
Communication [1, 12... Mounting plate, 13... Seed supply section,
14... Seed falling part, 15... Pot, 16...
・Suction chamber, 17...Blowout chamber, 18...Center shaft cylinder, 1
9... Close contact, addition... Front rubber roll, 21... Inner peripheral surface, η... Close contact, 23... Close contact, 24... Rear rubber roll, 5... Close contact, pleasure... Flange, n...Fixed shaft, Red, 29...Movable mounting plate, 30...Side plate, 3
1... Central axis, J... Long hole, n... Bush, 3
4... Central shaft, A... Elongated hole, 40... Positioning roller, 41... Rotating shaft, 42... Rubber roller 43
...Eccentric cam, Morning...Rotating mounting plate, 45...Screw, 46...Drive shaft, 47...Side plate, 48...-gear, 49...Suction port, 50... Air blowing nozzle, 5
DESCRIPTION OF SYMBOLS 1... Air outlet, 52... Guidance case, 53... First scraping brush, C... Second scraping brush, 55... Leakage 1F brush, Gu... First stirring brush , 57...second
Stirring brush, 58...Rotating brush, 59, (fund)...
・Sole, 61...Air outlet, 62...Ir seedling box, imperial edict.
...Movement device, Literary name...Mounting plate, I...Hair, Kaku...
gap. Figure 3

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. , a rotatable small-diameter central shaft cylinder 18 is provided at the center thereof, and a rotatable front rubber roll 20 and rear rubber roll 24 are installed at the lower side between the central shaft cylinder 18 and the seeding roll 6. A positioning roller 40 is provided on the upper side between the central shaft cylinder 18 and the seeding roll 6, and the central shaft cylinder 18 is fixed to movable mounting plates 28 and 29 on both left and right sides, and the front and rear rubber rolls 20, 24
is loosely fitted to the movable mounting plate 28, and the positioning roller 40 is shaft-mounted to the movable mounting plates 28 and 29 via an eccentric cam 42.