JP2650877B2 - Granular material adsorption device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adsorption device for adsorbing granular materials such as seeds and minute articles one by one.

[0002]

2. Description of the Related Art Conventionally, when such granular materials, for example, seeds are adsorbed one by one and implanted in a urethane mat for raising seedlings, a rod-shaped nozzle or a flat-plate nozzle having a small-diameter hole formed in a flat plate has been used. Was.

[0003] A large number of seeds are implanted in a urethane mat in a state where a large number of seeds are sucked and adsorbed by one adsorption nozzle.

[0004]

In the suction nozzle of the above-mentioned conventional apparatus, since the seed is simply sucked at the tip of the opening of the nozzle, the center of the seed is located at the center of the opening of the nozzle in the plane. If they match, only one seed can be adsorbed, but if the center of the nozzle opening is located in the middle of the seeds, two or more seeds may be adsorbed.

[0005] In this state, when seeds are planted in a urethane mat for raising seedlings, two or more seeds germinate from one place, so that there is a problem that a thinning operation is required and extra labor is required.

Accordingly, an object of the present invention is to provide an apparatus for adsorbing particulate matter that can solve the above problems.

[0007]

In order to solve the above-mentioned problems, the present invention provides an apparatus for adsorbing particulate matter, wherein a suction pipe is inserted through the center of a bottom plate of a cylindrical body having an air chamber, A plurality of air outlets are formed around the insertion section of the suction pipe of the section, and an air supply pipe is connected to the air chamber in the cylindrical body.

Further, in the above-mentioned suction device, a suction pad having a concave lower surface in contact with the granular material or a suction needle capable of absorbing the granular material is attached to a lower end of the suction tube at the tip of the suction tube. Things.

Further, in the above suction apparatus, the air outlet is formed near the tip of the suction pipe and in a direction such that the blown air turns around the suction pipe.

[0010]

According to the above structure, when a plurality of granular materials are sucked at a time by blowing air from the air outlet at the time of the adsorption of the granular material, an extra granular material can be dropped. Thus, for example, when used to plant seeds, seeds can be planted one by one with a high probability.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An apparatus for adsorbing particulate matter according to one embodiment of the present invention will be described below with reference to FIGS.

The apparatus for adsorbing particulate matter according to this embodiment is shown in FIG.
As shown in FIG. 2 and FIG. 2, an elevating cylinder device 1 vertically supported by a frame body (not shown), and an inverted L-shaped side view attached to a lower end of a rod portion 1a of the elevating cylinder device 1 Elevating body 2 having a shape and elevating body 2
The mounting bracket 3 provided on the side of the hanging part 2a of
A swinging body 5 having an inverted L-shape in side view, which is swingably mounted in a vertical plane via a support shaft 4, and is hung via a fixture 6 on a lower surface of a horizontal portion 5 a of the swinging body 5. A cylindrical body 7 having an air chamber (referred to as an air chamber) 8 formed therein, an aluminum suction pipe 9 inserted through the upper and lower portions of the cylindrical body 7, Lifting body 2
And a suction device (not shown) and an air compressor (not shown, but may be another blower, etc.)
And a suction hose 11 for connecting the suction communication hole 10a of the manifold 10 and the suction pipe 9 to each other. The air supply communication hole 10b of the manifold 10 and the air chamber 8 of the cylindrical body 7
An air supply hose (air supply pipe) 12 connecting the inside, a suction pad 13 attached to a tip (lower end) of the suction pipe 9, and a threaded insertion through a hanging part 2 a of the elevating body 2. A screw 14 for adjusting the posture of the rocking body 5 for contacting with the hanging part 5b of the rocking body 5 so that the rocking posture thereof does not become a predetermined angle or less; and a seed disposed below the suction pipe 9. And a storage device 15.

Further, as shown in FIG. 2, a plurality of, for example, 3
The air outlets 16 (which may be four or more) are formed, and each of the air outlets 16 is directed to a position eccentric with respect to the center of the suction pipe 9. Therefore, a swirling flow is generated in the air chamber 8 by the air blown out from each of the air outlets 16.

The adsorption pad 13 is mainly for adsorbing spherical seeds, for example, coated seeds A.
A concave surface 13a that forms a part of a spherical surface is provided, and a suction hole 13b is formed in the center thereof.

The seed storage device 15 is shown in FIGS.
As shown in the figure, a moving cylinder device 22 attached to the mounting frame 21, and a rod storage portion 22a of the moving cylinder device 22 that is swingably supported and elongated by a support frame 23 via a support frame 23. Hopper 2
4 and one swing shaft 25 of the seed storage hopper 24.
And a swing arm 26 having a roller 27 provided at the distal end thereof and being supported by the support frame 23, and guiding the roller 27 provided at the distal end of the swing arm 26. A cam plate 28 having a cam surface 28 a formed thereon, a center position of a side surface of the seed storage hopper 24, and a support piece 29 attached to the support frame 23.
And a tension spring 30 stretched between them.

The seed storage hopper 24 is provided with a plurality of partition walls 31 and a plurality of compartments 24a formed in the longitudinal direction thereof. A plurality of tubular bodies 7 each having the suction pipe 9 are provided, and each of the tubular bodies 7 is swingably provided on the elevating body 2 via the swinging body 5.

Further, in addition to the above-mentioned suction pad 13, a suction hole portion 31 a is formed in the center of the suction device in order to mainly absorb slender seeds, for example, bare seeds, as shown in FIG. The suction needle 31 is provided.

In the above arrangement, when seeds are to be arranged one by one on the urethane mat for raising seedlings, first, for example, an appropriate amount of spherical seeds, for example, coated seeds A, are put in each compartment 24a of the seed storage hopper 24, Then, the elevating body 2 is lowered by the elevating cylinder device 1 so that the suction pad 13 attached to the lower end of the suction pipe 9 is brought into contact with the upper surface of the group of coated seeds A in each compartment 24a.

Then, by remotely operating an electromagnetic switching valve or the like provided on the manifold 10 side or the frame body side,
The air in the suction pipe 9 is sucked. Then, the suction pad 1
The air is sucked in from the suction hole 13b of 3 and the coat seed A is adsorbed on the adsorption pad 13. In this state, the elevating body 2 is raised by the elevating cylinder device 1 to a predetermined height.

When it is raised to a predetermined position, the electromagnetic switching valve provided on the manifold 10 side or the frame body side is remotely operated, and compressed air is supplied to the air chamber 8 in the cylindrical body 7. When compressed air is supplied into the air chamber 8, the compressed air is blown out from the air outlet 16 and
Moreover, since the blown air is blown around the suction pad 13 in a swirling manner, FIGS.
As shown in FIG. 9, when a plurality of, for example, two coat seeds A are adsorbed on the suction pad 13, one of the coat seeds A is swirled by the swirling flow as shown in FIGS. 9 and 10. It is shifted with respect to the center of the suction pad 13. The suction force to the shifted coat seed A becomes weaker, and the shifted coat seed A falls from the suction pad 13. Accordingly, only one coat seed A is adsorbed on the adsorption pad 13.

Then, when the coated seeds A are adsorbed one by one on each adsorption pad 13, the seeds are moved on the urethane mat for raising seedlings in this state.
As a result, the lifting body 2 is lowered, and the suction pad 13 is lowered onto the urethane mat for raising seedlings. Then, when the suction force is stopped by the electromagnetic switching valve, the coated seed A separates from the suction pad 13 and falls on the urethane mat for raising seedlings.

As described above, the suction pad 13 is used to adsorb and hold the coated seed A, and air is blown out from around the suction pad 13 to generate a swirling flow around the pad. Therefore, even when a plurality of coated seeds A are adsorbed on the suction pad 13, seeds other than one grain can be dropped.

When the amount of the coated seeds A in the storage hopper 24 is large when the suction pads 13 are lowered, the suction pads 13 are forcibly pressed against the coated seeds A. Since the suction pipe 9 itself is supported by the swinging body 5 via the tubular body 7, that is, by the swinging mechanism, as shown in FIG. As a result, it is possible to prevent the coat seed A from being damaged.

That is, a decrease in the germination rate due to cracking of the coated seed A, clogging of the suction pad 13 and the like are prevented. The posture adjusting screw 14 adjusts the posture of the oscillating body 5, that is, the posture of the suction pipe 9 to be substantially vertical. However, the adjustment by the posture adjusting screw body 14 is adjusted so that at least the suction pad 13 does not swing near the swing center of the swing body 8.

The seed storage hopper 24 is rocked at appropriate intervals. That is, the seed storage hopper 24 is reciprocated in the horizontal direction by the operation of the transfer cylinder device 22. At this time, the roller 27 attached to the tip of the swing arm 26 moves together. However, since the roller 27 is in contact with the cam surface 28a, the swing arm 26 moves as shown in FIG. 3 swings in the directions of arrows a and b. That is, due to the retreat of the rod portion 22a, the rod portion 22a swings to the left (in the direction of the arrow a) and then returns to the original vertical posture. In addition, due to the protrusion of the rod portion 22a,
It swings to the right (in the direction of arrow b). Therefore, the seed storage hopper 24 is swung, and the upper surface of the coated seed A stored therein is made to have a substantially uniform height.

In the above embodiment, the case where the coated seed A is adsorbed has been described. For example, as shown in FIGS. Instead of 13, a suction needle 31 is attached.

As described above, when the suction needle 31 is attached, for example, when two bare seeds B, which are elongated seeds, are sucked, the bottom plate 7
Any seed B is dropped by the air blown out from the air outlet 16 around a, and in this case also, only one seed can be adsorbed.

Next, a result of a test for examining the effect of blowing air (also referred to as air blow) from around the suction nozzle (pad or needle) that has absorbed a large number of seeds in the above-described configuration was performed. Are shown in [Table 1].

The seeds used in the test are as follows. 1. Seed name Spherical seed (coated seed): Chinese cabbage Slender seed (naked seed): green wave Average seed size Spherical seed (coated seed): φ3.3 mm Slender seed (naked seed): 3.1 L × 1.0 W × 0.5 H (mm) 3. Number of nozzles: 12 Number of tests: 120

[0030]

[Table 1]

As can be seen from Table 1, it is found that spraying air to the nozzles on which a plurality of seeds are adsorbed is very effective in blowing off excess seeds and leaving only one grain.

Next, the results of the tests for the seed cracking and the adsorption rate in the case where the nozzle swing mechanism (the tubular body swing mechanism) is provided and in the case where the nozzle swing mechanism is not provided in the above configuration are shown as follows. Table 2].

The seeds and conditions used in the test are as follows. 1. Seed name Spherical seed (coated seed): Chinese cabbage Average seed size Spherical seed (coated seed): φ3.3 mm Slender seed (naked seed): 3.1 L × 1.0 W × 0.5 H (mm) Humidity: 70% 4. Number of tests: 120

[0034]

[Table 2]

As can be seen from Table 2, the provision of the swing mechanism has an effect of preventing seed cracking and chipping.
Further, as described above, Table 3 shows the test results when both the structure for blowing air from around the suction nozzle and the swing mechanism are employed.

The seeds and conditions used for the test are as follows. 1. Seed name Spherical seed (coated seed): Chinese cabbage Average seed size Spherical seed (coated seed): φ3.3 mm Slender seed (naked seed): 3.1 L × 1.0 W × 0.5 H (mm) Humidity: 70% 4. 4. Number of tests: 120 Swing of the storage hopper: ± 45 degrees to the left and right

[0037]

[Table 3]

As can be seen from Table 3, the ratio of adsorbing only one grain is 99.7% for spherical seeds, and 99.7% for elongated seeds.
This is 80.5%, which makes it possible to realize much more efficient single grain adsorption as compared with the conventional example (about 90% for spherical seeds and about 50% for slender seeds).

For comparison, a test result in the case of using a flat plate nozzle (a nozzle with a flat plate hole) having a conventional configuration is shown in [Table 4].

[0040]

[Table 4]

In the above embodiment, the seed is described as a granular material. However, the present invention is also applicable to, for example, a case where minute components are sucked and held one by one.

[0042]

As described above, according to the structure of the present invention, since a plurality of air outlets are formed around the suction pipe for particulate matter, air is blown out from the air outlet when the particulate matter is adsorbed. Thereby, when a plurality of granules are adsorbed at one time, extra granules can be dropped, and therefore, for example, when used for planting seeds, it is possible to plant seeds one by one with a high probability. Since it is possible, there is no need to perform extra work such as thinning out later.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing a schematic configuration of an apparatus for adsorbing particulate matter in one embodiment of the present invention.

FIG. 2 is a view taken in the direction of arrows CC in FIG. 1;

FIG. 3 is a side view of the seed storage device in the adsorption device of the embodiment.

FIG. 4 is a plan view of a seed storage device in the adsorption device of the embodiment.

FIG. 5 is a cross-sectional view of a suction needle in the suction device of the embodiment.

FIG. 6 is a side view showing an operation state of the suction device of the embodiment.

FIG. 7 is a sectional view of a main part showing an operation state of the suction device of the embodiment.

8 is a view as viewed in the direction of the arrow DD in FIG. 7;

FIG. 9 is a cross-sectional view of a main part showing an operation state of the suction device of the embodiment.

FIG. 10 is a view as seen in the direction of arrows EE in FIG. 9;

FIG. 11 is a sectional view of a main part showing an operation state of the suction device of the embodiment.

FIG. 12 is a view as viewed in the direction of arrows FF in FIG. 11;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lifting cylinder apparatus 2 Lifting body 5 Oscillator 7 Cylindrical body 8 Air chamber 9 Suction tube 13 Adsorption pad 15 Seed storage device 16 Air outlet 22 Cylinder device for movement 24 Storage hopper 24a Compartment room 26 Oscillating arm 27 Roller 28 Cam plate 31 Suction needle

Continuation of the front page (72) Inventor Noboru Iwaki 2-1-1, Shiobara, Minami-ku, Fukuoka City, Fukuoka Prefecture Kyushu Electric Power Co., Inc. (72) Inventor Kamio Kitahara 1-1-10 Takagise Higashi, Saga City, Saga Prefecture No. 1 Kyushu Electric Power Co., Inc. Research Institute Agricultural Electrification Test Site (72) Inventor Mitsuhisa Nakahara 1-1-10 Takagise Higashi, Saga City, Saga Prefecture Kyushu Electric Power Co., Inc.

Claims (4)

(57) [Claims] 1. A suction tube is inserted through the center of a bottom plate of a cylindrical body having an air chamber, and a plurality of air outlets are formed around the suction tube insertion portion of the bottom plate. An apparatus for adsorbing particulate matter, wherein an air supply pipe is connected to an air chamber in a cylindrical body. 2. A device for adsorbing granular material according to claim 1, wherein a suction pad having a concave lower surface in contact with the granular material is attached to a tip portion of the suction tube. 3. An apparatus for adsorbing particulate matter according to claim 1, wherein a suction needle capable of adsorbing particulate matter is attached to a lower end of the suction pipe at a lower end thereof. 4. The air outlet according to claim 1, wherein the air outlet is formed near the tip of the suction pipe and in a direction in which the blown air turns around the suction pipe. For the adsorption of particulate matter.