JPH0819307A - Seeding device - Google Patents

Abstract

PURPOSE:To provide a vacuum suction type seeding device capable of sucking seed grains one by one with a suction nozzle. CONSTITUTION:This seeding device is a vacuum suction type seeding device constituted by forming a seed guide unit 45 into a V-shaped cross section in the seeding device equipped with a seed hopper 44, the seed guide unit 45 and a vibrator 46 for vibrating the seed guide unit 45. Furthermore, the vibrator is installed in the seed hopper 44. A groove having a slightly larger width than the minor axis of the seeds is formed in one lateral side of the seed hopper 44.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seeding apparatus for a seeding plant equipped with, for example, a tray feeder, a soil filling machine, a seeder, and a soil cover, wherein seeds in a seed hopper are turned into nozzles by a vacuum suction force. The present invention relates to a seeding device having a seeding cycle structure in which each pot of a tray that is adsorbed, taken out, and conveyed by a conveyor is sequentially seeded.

[0002]

2. Description of the Related Art A hopper is divided into a large hopper and a small hopper by a partition plate, and an elevating rod having a saucer formed at the upper end is inserted into the small hopper so that it can be moved up and down, and the hopper is placed on the saucer and on the side of the small hopper. A seeder in which the suction nozzle swings between the provided chutes is known from Japanese Utility Model Laid-Open No. 2-31408.

[0003]

In the above seeding machine, a communication port is provided in the lower portion of the partition plate so that the large hopper and the lower portion of the small hopper communicate with each other, and the seeds in the large hopper are along the inclined surface of the bottom of the large hopper. It moves from the communication port to the small hopper and the seeds are adsorbed by the small hopper, but the seeds are oriented vertically and in the case of flat seeds, not only one but several may be adsorbed. The sowing accuracy of flat seeds such as tomatoes is poor. SUMMARY OF THE INVENTION It is therefore an object of the present invention to solve this drawback and to obtain a vacuum adsorption type seeding device capable of adsorbing particles one by one with an adsorption nozzle.

[0004]

The present invention provides the following seeding device in order to achieve the above objects. That is, a first aspect of the present invention is a vacuum adsorption type seeding device equipped with a seed hopper, a seed guide, and a vibrating device for vibrating the guide, and the seed guide is configured to have a V-shaped cross-section. On the other hand, the second aspect of the present invention is a sowing device in which a suction nozzle is provided so as to move back and forth, and the second invention is a vacuum suction type sowing device equipped with a vibrating device in the seed hopper, which is slightly larger than the short diameter of the seed on one side of the seed hopper. The seeding device is provided with a groove having a width.

[0005]

The seed from the seed hopper moves while being aligned by being vibrated by the vibrator in the seed guide having a V-shaped cross section, and the seed detected by the transmission nozzle at the rear end of the seed guide is adsorbed. The nozzle is sucked by the vacuum pressure, and the nozzle that has sucked the seed reaches the chute and becomes a positive pressure to drop the seed. When a vibration sensor provided near the discharge end of the chute detects a seed, the suction nozzle sucks the next seed. Further, by providing a groove having a width slightly larger than the short diameter of the seed on one side of the seed hopper, the seed is adsorbed by the nozzle one by one while being aligned in the groove by the vibration of the seed hopper.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the drawings will be described below. First, the whole seeding plant will be described. In FIG. 5, (1) is an automatic tray supply device for accommodating trays (3) for raising seedlings in multiple stages, using the seedling raising boxes (2) as trays, respectively
Is a filling conveyor which conveys the trays (3) supplied from the feeding device (1) one by one to the lower side of the feeding device (1) so as to face the feeding start end side, and (5) is the filling conveyor ( 4) A soil filling machine, which is provided at the feeding intermediate portion of the soil feeding hopper (6) and supplies the soil in the soil hopper (6) to the tray (3) on the filling conveyor (4), and (7) is the filling conveyor (4). A seeding conveyor having a feed end connected to a feed end, and (8) is provided in the feed intermediate part of the seeding conveyor (7) and the conveyer (7) is provided.
A vacuum seeder for seeding the above-mentioned tray (3) after filling with soil, (9) a soil cover conveyor in which a feed start end is connected to a feed end of the seeding conveyor (7), and (10) a soil cover conveyor ( 9) A soil covering machine which is provided at an intermediate feeding portion of the conveyor and covers the tray (3) on the conveyor (9) after seeding, and the tray (3) from the supply device (1) is provided on each conveyor (4).
(7) During transport in (9), the tray (3) is filled with soil, seeded, and covered with soil.

The filling machine (5) is provided with a soil feeding conveyor (1) for feeding the soil in the hopper (6) to the tray (3).
1), a leveling round brush (12) for leveling the soil surface supplied to the tray (3), and the upper end of the seedling raising box (2) and the tray (3) when passing through the conveyor (4) after filling the soil. A compressed air jetting device (13) for jetting and cleaning the gap between the upper ends with pressurized air, a filling irrigation device (14) for spraying and irrigating the tray (3) after leveling the soil surface, and a tray (3 ), A vibrator (15) for vibrating the tray (3) at the time of feeding the soil to promote the feeding of the soil, and a round brush (12) which faces the lower position of the conveyor (4) and is collected by dropping. A recovery conveyor device (17) for returning the soil to the hopper (6) through a vertical transfer device (16), and a drainage gutter (1) for advancing to a position below the conveyor (4) of the irrigation device (14).
8), the motor (19) drives the filling conveyor (4), the motor (20) drives the soil feeding conveyor (11) and the round brush (12), and the recovery conveyor device (17). ) And the vertical conveying device (16) are driven by motors (21) and (22) to perform soil filling work.

The soil cover machine (10) is a soil cover supply conveyor (3) for supplying the tray (3) with the soil cover in the hopper (36).
7), a soil covering irrigation device (38) for spraying and irrigating the entire soil covered tray (3), and a soil covering drain gutter (56) facing a position below the conveyor (9) of the irrigation device (38). Equipped with a motor (5) for driving each conveyor (9) (37).
7) It is configured to carry out this soil covering work by going to (58). The vacuum seeder (8) includes an air compressor (23) and a vacuum pump (24), and the seeding conveyor (7) is driven by a motor (25).

The present invention relates to the improvement of the seeding device in the seeding plant as described above. The seeding device disclosed in Japanese Utility Model Laid-Open No. 2-31408 as an example of the seeding device divides the hopper (39) into a large hopper (39b) and a small hopper (39c) by a partition plate (39a) as shown in FIG. , A funnel (41) having a saucer (40c) formed at the upper end thereof is inserted into the small hopper (39c) side so that the small hopper (39c) can be moved up and down, and a funnel (on the side of the saucer (40c) and the side of the small hopper (39c) 42) the suction nozzle (43) swings, and a communication port (39d) is provided in the lower part of the partition plate (39a) to communicate the lower part of the large hopper (39b) and the small hopper (39c). are doing.

According to the above, the large hopper (39b)
The seeds inside move from the communication port (39d) to the small hopper (39c) along the inclined surface of the bottom of the large hopper (39b),
Since the small hopper (39c) is designed to adsorb seeds, the seeds are oriented vertically, and in the case of flat seeds, multiple seeds may be adsorbed instead of one seed, and sowing of flat seeds such as eggplant and tomato is possible. The accuracy is poor. The present invention improves the above points and is a vacuum adsorption type seeding device capable of adsorbing one by one.

That is, as shown in FIGS. 1 and 2, below the hopper (44), there is a seed guide body (45) having a V-shaped cross section, which is vibrated by an exciter (46). There is. Further, the seed guide body (45) is inclined downward, and there is a transmission sensor (47) at the end (A) for detecting the seed passing through the seed guide body (45). Is detected, and the suction nozzle (48) is moved by the signal, and the seeds are sucked under vacuum pressure. After adsorption, the nozzle (48) returns to the position B and a positive pressure is applied to drop the seeds to the shooter (49). A vibration sensor (50) is installed below the shooter (49),
Seed drop is detected by the vibration sensor (50) and turned off
At this time, the suction nozzle (48) again performs the seed suction process. All the vibration sensors (50) of each row detect the drop of seeds, and the transfer conveyor (7) of the tray (3) moves one cell of the cell tray.

Since the nozzle (48) is moved and adsorbed by the transmission sensor (47) because of the above-mentioned structure, it is possible to prevent the occurrence of leakage of adsorption. Further, the vibration sensor (50) of the shooter (49) enables smooth sowing work. In any case, since the seeds are aligned by the seed guide, the suction nozzle can surely suck the seeds of the target one by one.

The embodiment shown in FIG. 3 is also a modified embodiment capable of adsorbing seeds one by one, and can be applied to flat seeds such as cucumber and pumpkin, and 2-3 seeds are not adsorbed vertically. 3 and 4 show the parts feeder type seed hopper (5
1) shows that the hopper (51) is vibrated by an exciter (52), and a part where a plurality of grooves (53) on the bottom surface side are at regular intervals has an upward inclination (θ). Cage,
There is a suction nozzle (54) at the end. In addition, the suction nozzle (5
4) The tip has an adsorption rubber pad (55). Groove (5) of the seed feeder (51) of the parts feeder type as described above
For 3), a groove having a width slightly larger than the short diameter of the seed is used.

Therefore, the seed introduced into the seed hopper (51) is vibrated by the vibrator (52) and enters the groove (53), and the bottom surface in the groove (53) is inclined upward. From there, the seeds are laid out side by side and sent, and the sent seeds are picked up one by one by a suction nozzle (5
Adsorbed in 4). However, since the suction rubber pad (55) is provided at the tip of the suction nozzle (54), the clearance between the seed and the tip of the nozzle can be roughly set, and the suction performance is improved. Further, by making the width of the groove (53) of the seed hopper (51) slightly larger than the minor axis of the seed, the center of the nozzle and the center of the seed at the point of adsorbing the seed become substantially the same, and the adsorption performance is improved.

From the above, in the first invention, the seed guide has a V-shaped cross section in the vacuum adsorption type seeding device equipped with the seed hopper, the seed guide, and the vibrating device for vibrating the seed guide. With this configuration, the seeds are arranged in one row, and the suction nozzle can surely suck the seeds of the target one by one. In a preferred embodiment of the first invention, a permeation sensor for sensing seeds passing through the seed guide is arranged at the rear end of the seed guide, and the suction nozzle is operated under vacuum pressure in conjunction with the detection of seeds by the sensor. Is a sowing device configured to be moved by a vibration sensor, and further, a vibration sensor is disposed near the discharge end of a discharge chute that discharges the seeds adsorbed to the adsorption nozzle, so that the sensor and the nozzle may interlock with the seed adsorption preparation step. In the seeding device configured, by providing a permeation sensor at the rear end of the seed guide, the nozzle can be moved and the objective of preventing sticking leakage for sticking seeds can be achieved as well as shooter discharge. By providing a vibration sensor at the end, it is possible to achieve the purpose of smooth seeding work. A second aspect of the present invention is a vacuum adsorption type seeding apparatus having a vibration device in the seed hopper, wherein a seeding hopper is provided with a groove having a width slightly larger than the short diameter of the seed on one side of the seed hopper. By providing a groove with a width slightly larger than the minor axis of the seed on one side, the center of the nozzle at the point of adsorbing the seed and the center of the seed are almost the same, and the objective of improving adsorption performance can be achieved, and the seed can be achieved. Since it is adsorbed in a lying state, it is possible to achieve the purpose of adsorbing a plurality of seeds one by one without adsorbing the seeds. As a preferred embodiment of the second invention, an adsorption rubber pad is provided at the tip of the adsorption nozzle. As a result, the clearance between the seed and the tip of the nozzle can be roughly set, and the purpose of improving the adsorptivity can be achieved.

[0016]

According to the present invention, according to the invention of claim 1, the seeds are aligned in one row, and the suction nozzle can surely suck the seeds one by one. According to the second aspect of the invention, since the seeds are adsorbed in the lying state, the center of the nozzle and the center of the seeds are substantially the same without adsorbing a plurality of seeds, and the adsorption performance is improved.

[Brief description of drawings]

FIG. 1 is an explanatory view of a slope of a seeding device having a seed guide.

FIG. 2 is an explanatory side view of the above.

[FIG. 3] Side view of a parts feeder seed hopper

FIG. 4 is an explanatory plan view of the above.

[Fig. 5] Illustration of seeding plant

FIG. 6 is a sectional view of a conventional seeding device.

[Explanation of symbols]

 44 Hopper 45 Seed guide 46 Exciter 47 Permeation sensor 48 Adsorption nozzle 49 Shooter 50 Vibration sensor 51 Seed hopper 52 Exciter 53 Groove 54 Adsorption nozzle 55 Adsorption rubber pad

Claims (2)

[Claims] 1. A vacuum adsorption-type seeding device comprising a seed hopper, a seed guide, and a vibrating device for vibrating the guide, wherein the seed guide is V-shaped in cross section.
On the other hand, the seeding device is characterized in that the suction nozzle is provided so as to be movable back and forth. 2. A vacuum adsorption type seeding apparatus having a seed hopper equipped with a vibrating device, wherein a seeding hopper is provided with a groove having a width slightly larger than the short diameter of the seed on one side of the seed hopper.