JP3217437B2 - How to check the suction accuracy of the vacuum suction type seeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum suction type sowing machine in which a predetermined number of seeds are sown in each pot by a vacuum suction type sowing machine on seedling pots arranged in a grid pattern. The present invention relates to a method for confirming whether or not a seed is adsorbed on an adsorption nozzle.

[0002]

2. Description of the Related Art Conventionally, a vacuum adsorption type seeder has been known. For example, this is a technique disclosed in Japanese Utility Model Laid-Open No. 1-155713. This technology is configured to detect whether or not the seed is adsorbed on each suction nozzle of the vacuum suction type sowing machine using a sensor, and if there is a nozzle that does not adsorb the seed, the suction operation is repeated. It was.

[0003]

However, this technique is for eliminating adsorption errors during the seeding operation.
Unless the height of the nozzle in the hopper and the diameter of the suction nozzle match the seeds are checked in the preparatory stage before that, a suction error will occur fundamentally. Therefore, whether or not the seed is adsorbed on the suction nozzle is determined by performing a one-cycle operation of suction, transport, and release of the seed, temporarily stopping the operation in the middle, and checking whether the seed is adsorbed on the tip of the suction nozzle. However, since the operation of one cycle is fast, it is very difficult to stop above the hopper, and if the suction nozzle reaches and stops above the chute that guides the seed on the pot, the seed will be released and wasted is there.

[0004]

SUMMARY OF THE INVENTION The present invention uses the following means in consideration of the above points. Duplicate
The seeds are adsorbed by the number of suction nozzles, and the grid
Each pot on the seedling pot placed in
In a vacuum suction type sowing machine that seeds seeds, the suction nozzle
Is the release position on the shoot that guides the seeds on the seedling pot
And the confirmation position above the hopper and the seeds in the hopper
It is configured to move between the adsorption positions to adsorb,
In order to confirm the position, etc., the release position, confirmation position,
One cycle that allows only one cycle operation between landing positions
The cycle switch 53 is provided.
In the case of operating 3, the suction nozzle sucks the seed,
It is configured to stop at the confirmation position .

[0005]

When the one-cycle switch 53 is turned ON, the suction nozzle 30 extends the horizontal cylinder and moves horizontally to the confirmation position, and further, the upper and lower cylinders 25 contract, the suction nozzle 30 descends to the suction position, and the tip is the hopper 22. Then, each of the suction nozzles 30 sucks the seed 7 one by one, and the upper and lower cylinders 25 extend and stop at the confirmation position. At this time, the state of adsorption of the seeds by the suction nozzle 30 is checked, and when the suction stop switch 55 is turned on, the seeds 7 fall into the hopper 22 and are collected without waste. It stops at the discharge position, which is the fixed position.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; 1 is an overall side view of a seeding plant, FIG. 2 is an overall plan view of the same, FIG. 3 is a side view of a seeding device D and a transport device,
4 is a side view of the seeding apparatus, FIG. 5 is a side view of the suction conveyance section, FIG. 6 is a rear view of the hopper section, FIG. 7 is a suction nozzle assembly view, and FIG. 8 is a front view of the operation panel.

First, the overall configuration of a seeding plant will be described with reference to FIGS. The tray containing the seedling raising pot 9 is loaded in the tray supply device A and is carried out to the transport device 1. The soil carried out of the tray supply device A is filled with soil in the pot by the soil filling device B.
B 'is a soil collection device for collecting excess soil. Then, after being irrigated by the watering device C, a hole for sowing is made in the topsoil by a pressure-reducing tool in the seeding device D, and a suction nozzle 30 described later vacuum-adsorbs the seed 7 in the hopper 22 to fill the hole. Seeded by dropping. Then, after the soil is covered by the soil covering device E, the water is again irrigated by the water irrigating device F, and the seeding is completed.

The driving of the transfer device 1 is performed by a motor M1.
Performs the chain drive in the tray supply device A, the motor M2 performs the roller drive in the soil filling device B and the irrigation device C, and the motor M3 performs the belt drive in the seeding device D and the subsequent roller drive.
The motor M4 drives the roller in the watering device F. The transfer device 1a in the seeding device D is shown in FIG.
As shown in (1), a tray 3 and a brush 4 are disposed at the end of the conveyor belt 2 that conveys the tray, so that soil falling on the conveyor belt 2 can be removed and collected. The tray 3 is wider than the width of the conveyor belt 2 so that it can be pulled out laterally on a rail 5 that is provided in the width direction to facilitate post-processing. The brush 4 has a width equal to or greater than that of the conveyor belt 2. The tray is placed in contact with the conveyor belt 2 from below, so that the soil that has fallen onto the conveyor belt 2 during the tray transport is removed to prevent the tray from floating or shifting, and the tray 3 collects the soil. Transport device 1
a so that it can be easily collected.

In the seeding apparatus D of the present invention, as shown in FIG. 4, the side plates 10 are fixedly mounted on the conveying device 1a, and the support plate 11 is suspended from the front of the side plates 10. The front-rear direction adjuster 12 is fixed.
Is a rod 14 fitted by rotating the knob 13
Is movable in the front-rear direction. At the tip of the rod 14, a rod 15 is erected, and a vertical direction adjuster 16 is externally fitted to the rod 15, and by rotating a knob 17, a cylinder 19 attached to the vertical direction adjuster 16 is moved. The position can be adjusted up and down. At the tip of a piston rod 19a of the cylinder 19, two rows of perforation suppression devices 20 are arranged in the left-right direction. The drilling suppression device 20 is provided with the same number of projections of seedling pots 9 placed on the tray, drilled holes for fitting the seeds 7 to soil filled in seedling pots 9 by extending the cylinder 19 It is.

An inverted L-shaped arm 21 protrudes above the support plate 11, and a funnel 23 for replenishing a hopper 22 described later with seeds is provided at the tip of the arm 21. As shown in FIG. 5, a horizontal cylinder 24 that expands and contracts in the front-rear direction is disposed at the center of the side plate 10, and the horizontal cylinder 24 includes piston rods 24a and 2a.
4a Both sides are fixed to the side plate 10 so that the horizontal cylinder 24 can be slid left and right, and sensors XA and XB for detecting the position of the horizontal cylinder 24 are provided below the horizontal cylinder 24. A connection plate 29 is fixedly mounted on the side surface of the horizontal cylinder 24, and an upper and lower cylinder 25 is fixedly mounted on the upper side of the connection plate 29. A sensor XC
An XD is provided, and a nozzle support 26 is fixed to the upper end of the piston rod 25a.

As shown in FIG. 5, the nozzle support 26 is provided with a nozzle height adjusting screw 27 which is screwed around a spring 28. A nozzle height adjusting screw is provided on the upper surface of the nozzle support 26. An indicator 31 is provided to indicate the position of the suction nozzle 30 at the position 27, that is, the depth of fitting of the suction nozzle 30 fixed to the tip of the nozzle support 26 into the hopper 22. When the vertical cylinder 25 is reduced and the nozzle support 26 is lowered, the lower end 27 a of the nozzle height adjusting screw 27 hits the upper surface of the vertical cylinder 25, the amount of lowering is adjusted, and the seed 7 and the suction nozzle 30 in the hopper 22 are adjusted. The distance from the tip is adjusted. Generally, seeds with low fluidity are set with a low nozzle, and seeds with high fluidity are set with a high nozzle.

The suction nozzle 30 fixed to the rear end of the nozzle support 26 is, as shown in FIG.
a and a nozzle holder 30a.
0a is twice the number of suction ports 3 in the width direction of the pot 9 in the width direction.
Are protruded. The nozzle pipe 30a can be replaced depending on the type of seed or pot. A nozzle holder 30b is inserted into the nozzle pipe 30a and fixed with a set screw 32.
b, the base is fixed to the nozzle support 26, the hose is connected to a vacuum pump, and an O-ring 33 for sealing is fitted on the fitting part with the nozzle pipe 30a to the nozzle holder 30b to replace the nozzle pipe 30a. O-ring 3
3 is only one.

Next, the hopper 22 for storing seeds will be described. As shown in FIGS.
10 A frame 35 is provided horizontally on the rear portion, and a collected seed receiver 36 is provided in the frame 35. The collected seed receiver 36 is narrowly inclined to the bottom side so that the seeds are concentrated and collected. A discharge hole is opened at the bottom and the hole is plugged with a plug 37 so that seeds scattered from the hopper 22 and seeds discharged from the hopper 22 at the end of the work can be easily collected and collected. is there.

A rotating shaft 4 is provided on the upper part of the collected seed receiver 36.
Are fixed to the frame 35 by bolts 41, and insertion holes 40a, 40a,... Are opened in the rotating shaft 40 in the width direction so that the suction nozzle 30 can be inserted. A hopper 22 is rotatably supported on the rotary shaft 40, and links 42, 42 of which the length can be adjusted are supported on side plates of the hopper 22 by bolts 43, and the lower end of the link 42 is turned. The rotary shaft is pivotally supported by an arm 45 protruding from the drive shaft 44, and is driven by a rotary cylinder 46 fixed to the side surface of the frame 35. The seeds in the hopper 22 are swung by being driven by the rotary cylinder 46 to rotate the hopper 22 by a predetermined angle. The bottom surface 22 a of the hopper 22 is formed in a wavy shape in a sectional view so that the seeds are concentrated at the lower position of the suction nozzle 30. In addition, the hopper 22 is replaced because the shape of the hopper is flat or in the shape of a pickpocket according to the fine particles or the coated seeds. In this case,
A bolt 41 for fixing the rotating shaft 40 and a link 4
2 can be easily replaced simply by removing the bolt 43 fixing the same.

A chute support 47 is fixedly mounted on the front of the frame 35 to support a chute 48. The lower end of the chute 48 is arranged in two rows like the perforation suppression device 20, so that two rows are provided. The pot 9 extends downward so that seeds can enter at the same time.

In the seeding apparatus D having the above configuration,
The seedling pot 9 placed on the tray is transported, and
A hole is formed by the perforation suppression device 20 and the suction nozzle 30
As shown in FIG. 5, the horizontal cylinder 24 is moved from the seed release position (a) above the chute 48 to move the sensor XB
When is turned on, it stops at the confirmation position (b), and when the upper and lower cylinders 25 are reduced and the sensor XD is turned on, it stops at the suction position (c). When the suction is started and one seed 7 is adsorbed, the upper and lower cylinders 25 are extended and the sensor XC is turned on after a predetermined time and the sensor XC is turned on. It stops at the seed discharge position (a), discharges the seeds from the suction port at a low pressure to release the seeds, drops the seeds onto the pot 9 from the chute 48, and ends the sowing.

In such a configuration, before starting the operation, it is necessary to check the height of the suction nozzle 30 at the suction position (C) and whether or not the seeds are adsorbed on all the suction nozzles 30 after the seed is adsorbed. Therefore, the one-cycle operation can be manually performed on the operation panel 50 provided below the seeding apparatus D. As shown in FIG. 8, the operation panel 50 is turned on by a power switch 51 and an automatic / manual changeover switch 52 is turned on.
To the manual side, and turn the one-cycle switch 53
When N is reached, the suction nozzle 30 reaches the suction position (c) from the discharge position (a) through the confirmation position (b), adsorbs the seed, moves upward, and stops at the confirmation position (b). If the temporary stop switch 54 is turned on during this operation, it can be stopped at the confirmation position (b) or the suction position (c), and when the one-cycle switch 53 is turned on, it stops at the release position (a).

Then, at the confirmation position (b) where the one-cycle switch 53 is stopped after being turned on, the suction nozzle 30 is stopped.
It is checked whether or not the seeds are adsorbed to each of them. When the check is completed, the suction stop switch 55 is turned on to stop the suction. Since the seeds are not sucked, the seeds are dropped and returned into the hopper 22. . Further, if adjustment is necessary, the suction nozzle 30 and the nozzle height adjusting screw 27 are adjusted, the one-cycle switch 53 is turned on, the operation is stopped at the discharge position (a), and the operation is repeated. is there. Reference numeral 56 denotes a switch for raising the hopper 22, and switches 57 to 62 are manually operated for maintenance or the like, and are manually operated to carry the transport device 1, the tray supply device A, the soil filling device B, the soil collecting device B ', the soil covering device E, and the watering device. F is for operating independently of each other, a switch 63 is a start switch for automatic operation, and a switch 64 is a switch for stopping all the devices.

[0019]

According to the present invention, the following effects can be obtained by the configuration described above. That is, when confirming the suction accuracy and the suction position of the suction nozzle, it is not necessary to perform an operation of measuring the timing during the one-cycle operation and stopping at the check position, and the one-cycle switch is turned on.
Just after doing so, it stops at the confirmation position above the chute, and the suction nozzle stops above the hopper, so when the seeds are released after confirmation, they are collected by the hopper, and the seeds are securely viewed without wasting them. It was possible to stop it.

[Brief description of the drawings]

FIG. 1 is an overall side view of a seeding plant.

FIG. 2 is an overall plan view of the same.

FIG. 3 is a side view of the seeding device D and a transport device.

FIG. 4 is a side view of a sowing apparatus.

FIG. 5 is a side view of the suction conveyance unit.

FIG. 6 is a rear view of the hopper.

FIG. 7 is an assembly drawing of a suction nozzle.

FIG. 8 is a front view of an operation panel.

[Explanation of symbols]

 A Release position B Confirmation position C Suction position 7 Seed 9 Seedling raising pot 22 Hopper 25 Vertical cylinder 30 Suction nozzle 48 Chute 53 One cycle switch 55 Suction stop switch

Continuation of the front page (56) References Hikaru 2-6411 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 7/04

Claims (1)

(57) [Claims] 1. A method of adsorbing seeds to a plurality of adsorption nozzles.
Each of the pots on the seedling pots arranged in a grid pattern
To a vacuum adsorption type sowing machine that sows a predetermined number of seeds
The suction nozzle is a shoe that guides the seeds on the seedling pot.
The discharge position on the hopper, the confirmation position above the hopper, and the
It is configured to move between the adsorption positions that adsorb the seeds in the par
In order to check the suction accuracy and position,
Only one cycle operation between the setting, confirmation position and suction position
Provide a one-cycle switch to enable
When the switch is operated, the suction nozzle sucks the seeds.
A method for confirming the suction accuracy of a vacuum suction-type seeder , wherein the method is configured to be worn and stopped at the confirmation position .