JPH07227108A - Seeding equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] Even if the seed S is accidentally dropped while the seed S is sucked by the suction nozzle 9 and conveyed to the seeding guide port 13 above the pot part, the original seed hopper 8 Try to get back inside. [Structure] A guide body 7 having a corresponding number of gutters 6 is arranged above a plurality of seed hoppers 8 arranged at predetermined intervals in correspondence with a horizontal row of pots 5 on a tray 2. A seeding guide port 13 is formed at one end of the bottom surface of each gutter portion 6,
The bottom surface of each gutter 6 is formed in an inclined shape so that it is higher on the sowing guide port 13 side and lower on the seed hopper 8 side. The seeds S are sucked from the seed hoppers 8 by the suction nozzles 9, the suction nozzles 9 are moved along the gutter portion 6 to discharge the seeds S to the corresponding seeding guide ports 13, and the seeding guide ports Thirteen
The seeds are sown in the lower pot portion 5 through the tube 14 from.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a seeding device for sucking one seed by a vacuum suction nozzle and sowing the seed one pot at a time in a pot for raising seedlings. It is a thing.

[0002]

2. Description of the Related Art Among the prior arts of this type of vacuum type seeding device, there are JP-A-61-5706 and JP-A-1.
In Japanese Patent Publication No. 141507, the following configuration is adopted. That is, the suction nozzles are lowered from above the seed hoppers, which are open at the top and are arranged at predetermined intervals, and one seed is sucked by the lower end suction port of each suction nozzle. Next, the suction nozzles are pulled up while holding the suction force, and then horizontally moved to be positioned above the seeding guide port located above the pot section of a predetermined tray. In this state, the suction nozzles are lowered by a predetermined distance, and then the vacuum is released to drop one seed from the lower end suction port of the suction nozzle to seed the pot.

According to this structure, since there is no receiving plate below the horizontal movement section of each of the suction nozzles, seeds should come off from the suction nozzles during horizontal movement from the various child hoppers to the sowing guide port. And, it will fall into the pot section below and seed multiple seeds per pot section, which will cause inconvenience such as poor growth of the plant, and the dropped seeds will be lost outside the tray. There was inconvenience such as doing.

[0004]

In order to solve this inconvenience, JP-A-4-103410 discloses that a receiving plate is provided from the seed hopper to the lower part of the seeding guide port. Further, in this device, the suction nozzle, the seed hopper, and the seeding guide port are arranged in a plurality of rows, and the receiving plate is long in the row direction and has no partition.

Therefore, according to this structure, the seeds once accumulated on the bottom of the backing plate must be taken out by turning the backing plate upside down after the seeding work is completed, and the seeds may be lost. , May mix with other seeds that were previously on the backing plate. In addition, the seeds once taken out must be put into the seed hopper again and then the sowing work must be restarted, which causes a problem that the work is troublesome.

The present invention has been made to solve these problems of the prior art, and an object thereof is to provide a seeding device which is easy to handle.

[0007]

In order to achieve the above-mentioned object, the present invention comprises a plurality of seed hoppers arranged at a predetermined interval, a corresponding number of sowing guide ports, and a suction nozzle, In the seeding device, which sucks seeds from each seed hopper with each suction nozzle, and sows the pot portion below the cylinder communicating by moving the suction nozzles through the corresponding seeding guide port, For each sowing guide port and corresponding seed hopper location, communicate between the two,
In addition, a gutter part having an open upper surface is provided along the moving path of the suction nozzle, and the bottom face of each gutter part is formed in an inclined shape so that it is higher on the sowing guide mouth side and lower on the seed hopper side.

[0008]

EXAMPLE Next, an example in which the present invention is embodied will be described. FIG. 1 is a side view of a seeding device according to the present invention, and FIG.
Is a schematic plan view, and FIG. 3 is a schematic plan view showing the operating means of the suction nozzle. The seeding device 1 in the present embodiment is installed so as to straddle over a transfer conveyor 3 for transferring the tray 2 for raising seedlings in the direction of arrow A.
On the main body frame 4 in, a guide body 7 having a number of gutters 6 (six in the embodiment) corresponding to the number of rows of the pots 5 arranged in a row in the tray 2, and the pots 5 are provided. The number of seed hoppers 8 corresponding to the number of rows (6 in the embodiment) are arranged.

Further, above the guide body 7, there are provided moving means for moving the suction nozzles 9 in a number corresponding to the number of the gutter portions 6 back and forth all at once in the direction of the arrow A, and each suction nozzle. An actuating means 10 including an elevating means for vertically elevating each 9 is provided (see FIGS. 1, 2, 4, and 5). Next, details of the guide body 7 will be described. The guide body 7 is formed with a gutter portion 6 having a U-shaped cross-section that is open upward in the longitudinal direction in the transport direction of the tray 2, and each gutter portion 6 is separated from an adjacent gutter portion 6 by a wall, and front and rear side plates. It is separated by 11 and 12. A seeding guide port 13 is formed in the front part of the bottom surface of each gutter portion 6, and the tube 1 is attached to each seeding guide port 13.
4 are connected in series, and the lower ends of the respective cylinders 14 are arranged so as to face the pot portions 5 arranged in a row in the tray 2. At the rear part of the bottom of each gutter 6 is a take-out hole 1
5, the take-out cylinders 15 made of soft synthetic resin or the like are connected to the respective take-out holes 15, and the lower ends of the take-out cylinders 16 face the holes 17 opened on the upper surface of the seed hopper 8. At this time, as shown in FIG. 3, a spherical sealing member 18 is provided on the outer periphery of the lower end of the take-out cylindrical body 16, and with this sealing member 18, the holes 17 in the various child hoppers 8 are provided.
You may make it closely contact | close so that the clearance gap with the lower end outer periphery of the extraction cylinder 16 may be closed.

Then, each gutter 6 in the guide body 7
As shown in FIG. 3, the bottom surface of is formed in an inclined shape with an angle θ with respect to the horizontal plane so that it is higher on the seeding guide port 13 side and lower on the extraction hole 15 side. On the other hand, the seed hopper 8 is independently divided corresponding to the location of the gutter part 6 in the guide body 7, and an opening / closing lid 19 is provided at the upper end, which is taken into the seed hoppers 8 in various child hoppers 8. Can be replenished. As shown in FIGS. 1 and 2, in the embodiment, the seed hopper 8 is detachably mounted on the support portion 20 at a midway height position of the main body frame 4 so that the opening / closing lid 19 is upward and the hole 17 is downward. It is arranged in an inclined shape.

6 to 8 show another embodiment of the seed hopper 8, which is a cylindrical cartridge 21 having a bottom and containing seeds S.
Is provided in a plurality of rows in a transverse cross section, and a hole 17 into which the lower end of the take-out cylinder 16 can be inserted is formed in one side of each of the storage portions 22. The hole 2 corresponding to the hole 17 is formed on the circumferential side surface of the cartridge 21.
3 is bored, and this hole 23 is, as shown in FIG.
Before use, it is covered with a sticker paper 24. Since the sticker paper 24 is releasably attached via the pressure-sensitive adhesive layer 25 applied to the outer surface of the cartridge around the hole 23, the seed S inside the cartridge 21 is carelessly applied. It does not adhere to layer 25. The pressure sensitive adhesive layer 25 may be applied to the inner surface of the sticker paper 24 in advance. In this case, it is preferable that the pressure-sensitive adhesive layer 25 is formed only at a position outside the hole 23 and attached to the outer surface of the cartridge 21. Further, if a lid 26 such as a screw-in type is provided at the upper end opening of the cartridge 21 and a handle 27 is attached to the lid 26, the work of attaching / detaching the seed hopper 8 to / from each of the storage portions 22 becomes easy.

When large seeds, inexpensive seeds, and seeds of a plurality of rows are made to be the same type of seeds, the accommodating portion 22 communicating with the left and right sides of the seed hopper 8 shown in FIG. 6 without mounting the cartridge 21. The seeds can be stored inside for use. Next, the operating means 1 of the suction nozzle 9
0 will be described. At the upper left and right sides of the body frame 4, the tray 2 and the conveying direction (arrow A
Longitudinal guide rails 30, 30 are provided along
A support base 31 is slidably mounted on the left and right guide rails 30, 30 via guide portions (not shown). The support base 31 supports suction nozzles 9 corresponding to the positions of the gutter portions 6 of the guide body 7 so as to be vertically movable via a slider portion 32, and each suction nozzle 9 is a pair of nipping rollers. The rollers 33 are sandwiched by 33, 34 (the bearings for the sandwiching rollers are not shown), and one roller 33 is rotationally driven by a forward / reverse rotatable drive motor 35. The lower end is held at a high position, and is lowered at the seeding guide port 13 and the take-out hole 15. Particularly, at the location of the take-out hole 15, the seed S is configured to be lowered into the seed hopper 8 so that the seed S can be adsorbed by the lower end constricted portion of the suction nozzle 9.

On the other hand, a pair of front and rear rotary shafts 36 and 37 are arranged so as to extend in the width direction of the conveyor 3 and rotatably supported by a bearing (not shown). The pair of rotating shafts 36,
Chains 39, 39 are respectively wound around the chain sprockets 38, 38 attached to 37, and both chains 39,
The support base 31 is fixed to 39. One of the rotating shafts 36 is rotationally driven by a movable motor 40 capable of rotating in the forward and reverse directions, thereby making it possible to move the support base 31 in the directions of arrows A and A '. This moving range is at least from the seeding guide port 13 in the trough 6 to the take-out hole 15.

Further, the upper end of each suction nozzle 9 is connected to a vacuum pump 42 via a flexible hose 41, and an electromagnetic opening / closing valve 43 and a vacuum are provided in the middle of each suction nozzle 9 or hose 41. Meter (Thermistor vacuum gauge, etc.) 44
To provide. The display / combined switch 46 can recognize whether a negative pressure is applied to each of the suction nozzles 9 based on the detection result of each of the vacuum gauges 44, and turn on each of the electromagnetic opening / closing valves 43.
It can be turned off.

The switch also serving as the display 46 and the vacuum gauge 44
Input signal of the controller 45 is input to the input part of the controller 45, and the output signal of the conveyor 45 is the vacuum pump 42, the transfer conveyor 3, the drive motor 35, the moving motor 40, and the solenoid opening / closing valve 4.
3 is output to each drive circuit, and a predetermined sequence control is executed by the controller 45 such as a microcomputer.

That is, the transfer conveyor 3 is driven intermittently,
The horizontal row-shaped pot portion 5 of the tray 2 is temporarily stopped at a position below the tube 14. In this state, the drive motor 35 is operated to raise all the suction nozzles 9 and hold them at a position higher than the bottom surface of the gutter 6 on the high side (the seeding guide port 13 side). In this state, the moving motor 40 is operated to move the support base 31 in the direction of arrow A so that all the suction nozzles 9 are located above the take-out holes 15, and then the drive motor 35 is reversed to move the suction nozzles 9 To lower. When the lower end of each suction nozzle 9 is located inside the seed hopper 8 (see the chain double-dashed line in FIG. 3), the electromagnetic on-off valve 44 is opened to exert a negative pressure, and the seed S inside the seed hopper 8 is adsorbed. While maintaining this state, the suction nozzles 9 are raised in the gutter 6 to such an extent that the seeds S at the lower ends of the suction nozzles 9 do not contact the bottom surface. Then, the support base 31 is moved in the direction of the arrow A ′, and when the suction nozzle 9 is located at the position of the sowing guide port 13, the suction nozzle 9 is slightly lowered so that the seed S at the lower end enters the sowing guide port 13. Then, the negative pressure in the suction nozzle 9 is released by closing the open / close valve 43 in this state.
As a result, the seed S can be sowed along the tube 14 and naturally fall into the lower pot portion 5 for seeding.

The seeds S are placed in the seedbed soil in each pot portion 5.
When it is desired to embed a little, the descending amount of the suction nozzles 9 is increased, and the negative pressure is released in a state where the lower ends of the suction nozzles 9 are located below the surface of the seedbed soil in the pot portion 5,
The seed S at the lower end of each suction nozzle 9 is buried in the seedbed soil to a predetermined depth. By repeating such an operation cycle, the seeds S can be sown in the horizontal row-shaped pots 5 in the tray 2.

During the sowing operation in the automatic mode as described above, the suction nozzle 9 is moved to the gutter part 6 while the seed S is being sucked.
When the seed S is dropped from the suction nozzle 9 because the suction action is incomplete during the movement in the direction of the arrow A ′ along the
This seed S can be rolled along the inclined bottom surface of the gutter 6 and returned to the original seed hopper 8. When the seeding operation fails in such an automatic mode, the pressure of the suction nozzle 9 at the location rises. Therefore, this is detected by the vacuum gauge 44, and the number of the suction nozzle 9 indicating the seeding failure is displayed and the switch is also used. It can be notified by turning on the lamp of 46. When the seeding operation for some pot portions 5 fails, the controller 45 is switched to the manual mode, the support base 31 is moved again, only the suction nozzle 9 at the failed portion is lowered from the take-out hole 15, and the seeds S are sucked. After that, the support base 31 may be returned and moved, and the cycle of seeding from the seeding guide port 13 to the pot portion 5 therebelow may be executed in the manual mode.

[0019]

As described above, the seeding device of the present invention is provided with a plurality of seed hoppers arranged at predetermined intervals, a corresponding number of seeding guide ports, and a suction nozzle. A seeding device that sucks seeds from various child hoppers with each suction nozzle, and sows the pots below a cylinder that communicates by moving the suction nozzles through the corresponding seeding guide ports. For each of the seeding guide openings and corresponding seed hopper locations, an open top gutter is provided along the moving path of the suction nozzle, and the bottom of each gutter is used as a sowing guide. Since it is formed in an inclined shape so that it is high on the mouth side and low on the seed hopper side, the seed sucked by the suction nozzle moves along the trough, and the suction action is incomplete. , Even if the seeds fall, the bottom of the gutter is Since slope downwardly toward the child hopper side, it can be returned to the original seed hopper with seed tumbled along the bottom. Therefore, the seeds that have fallen are not scattered, and the effect of manually returning the seeds to the original seed hopper can be eliminated.

Further, since the gutter section is divided for each moving path position of the suction nozzle, and further for each seed hopper position, there is a case where the kind of the stored seeds is different for each of a plurality of adjacent seed hoppers. Even, seeds that have fallen into each of the gutters do not return to different seed hoppers,
It is possible to eliminate an accident that seeds are sown in the pot part by mistake.

[Brief description of drawings]

FIG. 1 is a schematic side view of a seeding device.

FIG. 2 is a schematic plan view of a seeding device.

FIG. 3 is a side sectional view of a main part.

FIG. 4 is a plan view of the operating means of the suction nozzle.

5 is an enlarged cross-sectional view taken along the line VV of FIG.

FIG. 6 is a partially cutaway front view of another embodiment of the seeding hopper.

7 is an enlarged cross-sectional view taken along the line VII-VII of FIG.

FIG. 8 is a partially cutaway perspective view of the cartridge.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seeding device 3 Conveyor conveyor 5 Pot part 6 Gutter part 7 Guide body 8 Seed hopper 9 Suction nozzle 10 Actuating means 13 Seeding guide port 14 Cylinder 15 Extraction hole 16 Extraction cylinder 17 hole

Claims (1)

[Claims] 1. A plurality of seed hoppers arranged at a predetermined interval, a seeding guide port of a number corresponding to this, and a suction nozzle are provided, and seeds are sucked from each child hopper by each suction nozzle, In a seeding device configured to sow the pot portion below the cylinder that communicates through the corresponding sowing guide port by moving each suction nozzle, for each of the sowing guide ports and the corresponding seed hopper location, both Communication between
In addition, a gutter part having an open upper surface is provided along the movement path of the suction nozzle, and the bottom face of each gutter part is formed in an inclined shape so that it is higher on the sowing guide mouth side and lower on the seed hopper side. Seeding device.