JP2855443B2 - Seeding machine adjuster - Google Patents

Description

The present invention relates to a technique for adjusting the amount of seeding for one pot in a vacuum adsorption type sowing apparatus.

(B) Prior art Conventionally, a vacuum adsorption type seeding apparatus has been known.
These seeding apparatuses are configured to adsorb one by one to the suction nozzle, release and sow on the seeding bed, transfer the seeding seed to the next seeding bed, and enter the next seeding step.

(C) Problems to be Solved by the Invention If only one seed can be sown in one pot, competitive germination cannot be promoted with a seed having a low germinating power or a fine seed.

Therefore, in crops and the like that are going to be seeded multiple times,
The seeding is performed by passing the seeding device several times, and it is necessary to carry the tray once for each seeding.

In addition, when a soil covering device, a watering device, and the like are provided integrally with the seeding device, there is a problem that the tray cannot be taken out unless the soil covering device or the like is removed or the final process is passed.

(D) Means for Solving the Problems In view of such a point, the present invention is configured as follows.

The pot seedling tray 2 is placed and transported on the conveyor 3, the position of the pot 2 a of the pot seedling tray 2 is detected, the pot 2 a is stopped below the chute 9, and the seeds in the seed hopper 11 Is sucked by a suction nozzle 20, the suction nozzle 20 that has absorbed the seed is moved, and the seed is released and seeded on a chute 9.
The seeding hopper 11 is used to provide a seeding repetition setting dial 44 on the control box 5 for repeating the step of adsorbing seeds from the seed hopper 11 and releasing them on the shoot 9 by an arbitrary number of times. Can be set arbitrarily.

(E) Embodiment The purpose of the present invention is as described above, and the configuration of the embodiment shown in the accompanying drawings will be described.

FIG. 1 is a front sectional view of a vacuum adsorption type sowing apparatus, FIG. 2 is a block diagram of sowing control, and FIG. 3 is a flowchart of sowing control.

The vacuum-adsorption type sowing apparatus is placed on a conveyor 3 that conveys a pot seedling tray 2 placed on a seedling box 1. The pot seedling trays 2 are spaced apart from each other at regular intervals by an inverted truncated cone (or square pyramid). Have pots 2a, 2a,..., Which are filled with bed soil before entering the vacuum adsorption type sowing apparatus.

Vacuum adsorption type sowing device is used for sowing frame 4 on conveyor 3
Is fixed, and the tray 2 for pot seedlings on the sowing frame 4 is fixed.
The control box 5, the electromagnetic valves 6.7, the pressing device A, the suction device B, and the seed hopper 11 are arranged from the side where the is transported (the left side in this embodiment).
Air cylinder 13 installed vertically on the connecting plate 12 installed horizontally
The air cylinder 13 is equipped with a spring and is configured to extend when compressed air is pressure-fed and to return to the original state when the pressure-feed is stopped. Reference numeral 19 denotes a position sensor for detecting whether the pressing tool 14 is at its original position.

A pressing tool 14 is attached to the lower end of the piston rod 13a of the air cylinder 13, and the pressing tool 14 has a recess for fitting seeds on the floor soil filled in the pot 2a of the pot seedling tray 2. It is for forming. The pressing tool 14
The pressing body 14a at the tip has radial projections, and the shapes of the projections are different from each other, and can be changed by rotating according to the type of seed and the number of seeds.

A sensor 10 for detecting whether or not there is a pot 2a is provided below the pressing device A, and the pressing device 14 is configured to descend after being located between the pots 2a.

A vertical cylinder 15 is erected behind the pressing device A, a horizontal cylinder 16 is fixedly mounted on the upper end of a piston rod 15a of the vertical cylinder 15, and a pickup head 17 is mounted on the tip of the piston rod 16a of the horizontal cylinder 16. Are fixed to the pickup head 17, and the suction nozzles 20, 20,.
Are provided upright as many as the number of pots in the width direction of the pot seedling tray 2.

The suction nozzles 20, 20,... Are connected to a vacuum pump via the electromagnetic valve 6, and the suction nozzles 20, 20,. Is being detected.

The chutes 9, 9 ... are erected below the suction nozzles 20, 20 ... at the reduced position of the horizontal cylinder 16.

21 is a position sensor for detecting that the pickup head 17 is on the chute 9, and 23 is a horizontal cylinder 16
Is a position sensor that detects the extended position, and 28 is a position sensor that detects that the pickup head 17 has dropped onto the seed hopper 11.

Reference numeral 29 denotes a position sensor provided below the chute 9, and detects whether or not the pot 2a is at the seeding position.

The seed hopper 11 is disposed below the suction nozzle 20 at the position where the horizontal cylinder 16 is extended, and the same number of extraction nozzles 24, 24 as the suction nozzles 20, 20,. The extraction nozzles 24, 24 ...
Are connected to a vacuum pump via the electromagnetic valve 7, and each of the extraction nozzles 24, 24,... Is provided with a differential pressure detection sensor 25, 25,. ing.

A spring is externally fitted in the middle of the extraction nozzle 24 to urge the extraction nozzle 24 downward, and the lower end of the extraction nozzle 24 is brought into contact with the tip of a rotating arm 27a of a rotary cylinder 27, thereby turning the rotary cylinder 27. By operating, the extraction nozzle 24 can be raised.

Reference numeral 39 denotes a position sensor for detecting the position at which the extraction nozzle 24 has risen.

On the control box 5, a setting dial 43 for setting the number of times the extraction nozzle 24 is moved up and down, a seeding repetition setting dial 44, a main switch 45, a suction lamp 46, and a single operation switch 47 are provided. Is the control circuit 40
Is decorated.

The control circuit 40 includes a microcomputer such as a CPU, a RAM, a ROM, and a timer.
As shown in the figure, the solenoids 30 and 31 of the electromagnetic valves 6 and 7 and the air cylinder 13 are output through an output interface 42.
Electromagnetic valve solenoid 32 that sends and stops air
Solenoids 33 and 34 of electromagnetic valves for extending and contracting the vertical cylinder 15, solenoids 35 and 36 of electromagnetic valves for extending and contracting the horizontal cylinder 16, and solenoids of electromagnetic valves for sending and stopping the air of the rotary cylinder 27 A drive circuit 48 for controlling a motor for driving the conveyor 37 and the conveyor 3 and the suction lamp 46 are connected.

Then, from the control circuit 40 via the input interface 41, the position sensors 19, 21, 23, 28, 39, 10, 29, the differential pressure detection sensors 25, 25, the elevating setting dial 43, the repetitive setting dial 44, the single operation Switch 47 is connected.

In such a configuration, the operation will be described based on the flowchart shown in FIG.

When the main switch 45 is turned ON, the seedling box 1 is placed on the conveyor 3 if the seedling box 1 is not placed on the conveyor 3 so that the seedling box 1 can be transported and the seedling box 1 is placed on the conveyor 3. When the tip blocks the position sensor 10, the position sensor
The motor is stopped when 10 is turned on and the next pot 2a is located between the pots 2a.

Then, the solenoid 32 of the air cylinder 13 is turned on, compressed air is sent, and the air cylinder 13 extends to
A recess is formed on the upper surface of the floor soil in the pot.

After a certain period of time, the solenoid 32 is turned off and reduced by the spring in the air cylinder 13, and the position sensor is
When 19 is turned on, the conveyor 3 is driven, and stops between the next pots, and the same operation is performed.

However, if there is a pot at the lower end of the chute 9 described later, the chute 9 remains stopped.

When the seedling box 1 is further transported and reaches the position sensor 29 and is located between the pots, the conveyor is stopped, and the value C of the setting dial 44 is repeatedly read, and the horizontal cylinder 16 is read.
When the extension solenoid 35 is turned on, the piston rod 16a is extended, and the position sensor 23 is turned on, the extension solenoid 35 is turned off, the piston rod 16a is stopped, and the reduction solenoid 33 of the vertical cylinder 15 is turned on. Then, the piston rod 15a contracts.

Then, when the pickup head 17 is lowered and the position sensor 28 is turned on, the reduction solenoid 33 is turned off, the electromagnetic valve 6 is turned on, and suction is performed from the suction nozzle 20.

On the other hand, the electromagnetic valve 7 is turned on to start suction, and the number of times N of the elevation setting dial 43 is read. The differential pressure detection sensor 25 provided in the extraction nozzle 24 detects whether or not the seed is adsorbed, and if it is not adsorbed, an alarm is issued because the seed is not in the seed hopper 11.

If the seeds are adsorbed, turn the rotary cylinder 27
ON, raises the extraction nozzle 24, stops when it reaches the ascending position sensor 39, stops the suction of the extraction nozzle 24, and determines whether or not the seed has been transferred from the extraction nozzle 24 to the suction nozzle 20 and is being sucked. Is detected by the differential pressure detection sensor 22, and if the seeds are not adsorbed on all the extraction nozzles 24, 24 ..., the extraction nozzle 24 is moved up and down by the N times.

If the seeds have been adsorbed on all the extraction nozzles 24, 24, the adsorption lamp 46 is turned on, and the reduction solenoid 33 is activated.
ON to extend the vertical cylinder 15 and at the same time the solenoid
36 turns ON and the horizontal cylinder 16 is reduced.

Then, when the pickup head 17 reaches the chute 9, the position sensor 21 is turned on and the suction is stopped, and the seed falls through the chute 9 onto the pot and is sown.

If the number of times of the setting value C of the repetition setting dial 44 has not been reached, the above operation is repeated, and the set number of seeds are sown in the same pot.

When the seeding is completed, the conveyor 3 is transported for one pot, and the above operation is repeated.

(F) Effects of the Invention With the above configuration, the present invention has the following effects.

First, a seeding repetition setting dial 44 is provided on the control box 5 for repeating the step of adsorbing seeds from the seed hopper 11 and releasing them on the chute 9 by the suction nozzle 20 by an arbitrary number of times. With 44, the number of sowing repetitions can be set arbitrarily, so that any number of seeds can be sown in one pot, and the number of seeds can be easily changed according to the germination rate and the type of crop. It became.

Secondly, when seeding several seeds in one pot, seeding is performed by passing several seeds only by passing the seeds once without passing through the seeding device, so that the seeding time can be reduced and labor can be reduced. It was.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a vacuum adsorption type sowing apparatus, FIG. 2 is a block diagram of sowing control, and FIG. 3 is a flowchart of sowing control. 2: Pot seedling tray 2a ... Pot 2 3 ... Conveyor 5 ... Control box 9 ... Shoot 11 ... ... Seed hopper 20 ... Suction nozzle 44 ... Repeat setting dial

Claims (1)

(57) [Claims] 1. A pot seedling tray 2 is placed on a conveyor 3 and transported. The position of the pot 2a of the pot seedling tray 2 is detected, and the pot 2a is stopped below the chute 9 to remove seeds. The seeds in the hopper 11 are vacuum-adsorbed by the adsorption nozzle 20,
The suction nozzle 20 that has absorbed the seeds is moved, and the shoot 9
In a sowing machine for releasing and sowing seeds above, a sowing repetition setting dial 44 that repeats the step of sucking seeds from the seed hopper 11 and releasing them on the chute 9 by the suction nozzle 20 by an arbitrary number of times is controlled by a control box. A seeding amount adjusting device for a seeding machine, wherein the number of seeding repetitions can be arbitrarily set by the seeding repetition setting dial 44 provided on the seeding device 5.