JPH08103109A - Transplanter - Google Patents

Abstract

PURPOSE: To prevent the defective stocks from occurrence by automatically feeding preliminary vegetable seedlings to a planting claw by a preliminary seedling supplying means when vegetable seedlings for feeding from a seedling tray to the planting claw are defective. CONSTITUTION: In a transplanter for loading a seedling tray on a seedling placing table 14, taking out the vegetable seedling 19 every one stock from the seedling tray and placing the seedlings, a defective stock sensor for detecting the vegetable seedling 19 fed from the seeding tray to a planting claw 17 is provided and a preliminary seedling supplying means 31 for automatically supplying the preliminary vegetable seedling 19 to the planting claw 17 based on the detected result of the defective stock sensor is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter for ground work such as planting of vegetable seedlings in a field.

[0002]

2. Description of the Related Art Conventionally, as shown in Japanese Patent Application No. 5-343825, a technique for equipping a traveling vehicle composed of a tractor with a plant for transplanting vegetable seedlings and continuously planting vegetable seedlings in a field scene. There is.

[0003]

SUMMARY OF THE INVENTION In the above-mentioned conventional technique, seedlings are raised using a synthetic resin seedling tray formed by integrally connecting a plurality of pots vertically and horizontally, and seedling trays that have been raised are used as seedling trays. Place, take out the vegetable seedlings from the seedling tray with your nails,
It is a planting nail that is planted on the upper surface of the ridge, and the planting work of vegetable seedlings can be automatically performed continuously by mechanization, but seeding is done by putting the soil in each pot of the seedling tray and seeding it with a predetermined size. When growing, it is easy to mix pots that do not have the right size of seedlings in the seedling tray due to poor germination or poor growth, and plant seedling trays that are partially missing or poorly grown on the seedling mounting table. As a result of this work, a stock stall will occur in the row of seedlings already planted. Therefore, before planting work, check the seedlings in each pot on the seedling tray and replace the seedlings of the appropriate size in the defective pot, or after planting work, place the seedlings of the appropriate size in the missing position on the upper surface of the ridge. There is a problem that it is not possible to easily improve the workability of planting or save labor, etc.

[0004]

[Means for Solving the Problems] Therefore, according to the present invention, in a transplanting machine in which a seedling tray is placed on a seedling placing table, and vegetable seedlings are taken out from the seedling tray and planted one by one, the seedling tray supplies the planting nails. In addition to providing a stock-out sensor to detect vegetable seedlings
It is equipped with a preliminary seedling replenishing means that automatically replenishes the planting nails with spare vegetable seedlings based on the detection results of the stock absent sensor. Since the supplemental vegetable seedlings are automatically supplied to the planting claws by the replenishment means, it is possible to easily prevent the occurrence of missing seedlings even when using a seedling tray in which defective seedlings are mixed between proper seedlings. Since there is no need to perform supplementary planting work after the planting work, the planting workability can be improved and labor can be saved more easily than in the past.

[0005]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a rear view of the planting claw, FIG. 2 is a side view of the whole,
3 is a plan view of the same, and FIG. 4 is a rear view of the same. In the figure, (1) is a tractor which is a traveling vehicle on which an operator rides, and includes front and rear wheels (2) and (3), a steering handle (4), a driver's seat (5) and the like, and the handle (4). Left and right preliminary seedling stands (7) are arranged on both sides of the front bonnet (6), and an engine is arranged inside the bonnet (6) to drive the front and rear wheels (2) and (3) to move forward and backward. The steering wheel (4) is configured to change the direction of travel by changing the direction of the front wheels (2). Further, it may be configured as a traveling vehicle by a vehicle body provided with a pair of left and right traveling crawlers, and a steering sensor that automatically detects a traveling course and an actuator that changes the direction of the front wheels.
It is also possible to provide a controller that operates the actuator based on the detection result of the steering sensor and to have an automatic steering function of automatically traveling along the ridges or the like detected by the steering sensor.

Further, as shown in FIGS. 5 to 8, reference numeral (8) in the drawings is an agricultural working machine which is installed at the rear portion of the tractor (1) so as to be able to move up and down through a hydraulic lift mechanism (9) which is a lifting support device. A seedling transplanting part, which constitutes a seedling transplanting part (8) having a two-row planting structure by a pair of left and right planting units (10) (10), and a unit frame (11)
And the upper and lower rails (12) (13) on the frame (11)
A seedling stand (14) that slides back and forth through the
Chopstick-shaped take-out claws (16) for taking out pot seedlings for one stock from the seedling tray (15) on the upper surface of the seedling stand (14), and the take-out claws (1)
6) a hopper type planting claw (17) for receiving pot seedlings from the planting field and planting in a field scene, a leveling roller (18) for suppressing the field scene in front of the planting section of the planting claw (17), and a planting Attached claw (17)
A pair of left and right cultivation soil rollers (20) for covering the pot seedling (19) planted by the above, a planting mission case (21) for inputting planting driving force, and a planting claw (17) for driving planting. Claw drive case (22), extraction claw drive case (23) for driving the extraction claw (16), and seedling mounting table (14)
Seedling table drive case (24) for horizontal and vertical feeding
The left and right planting units (10) and (10) are respectively provided with.

Then, the planted mission case (2
The driving force is transmitted from 1) to each of the drive cases (22) to (24) to cause the take-out claw (16) and the planting claw (17) to perform seedling taking-out and seedling planting operations on a predetermined locus, respectively. , The seedling lateral movement by the longitudinal movement of the seedling placing table (14) and the seedling longitudinal feeding by moving the seedling tray (15) to the lower end of the tilted seedling placing table (14) are performed respectively in the longitudinal direction. Take out the nails (1) from the seedling tray (15) of the seedling table (14) that is fed horizontally.
6) Take out the pot seedling (19) and planted nails (17)
The pot seedlings (19) are inherited and the pot seedlings (19) are continuously planted on the upper surface of the ridge (25) in the field at predetermined planting intervals.

Further, as shown in FIGS. 1, 8 and 9, a reflection photoelectric sensor type abscission sensor (26) is fixed to the base of the take-out claw (16), and the tip of the take-out claw (16) is used as seedling soil. Detection light is applied to the leaf portion of the pot seedling (19) that is abutted and reflected light is made incident on the absent strain sensor (26) to determine the presence or absence of leaves and the size of the leaf of the pot seedling (19). ), Which are unsuitable for transplantation such as those withered due to poor germination or poor growth and small ones (19)
And a pot seedling (1
9) and a drop guide (27) for dropping the pot seedling (19) of the extraction claw (16) into the lower planting claw (17).
A defective strain releasing shutter (28) for selectively dropping the inside of the planting claw (17) or the outside thereof, and the shutter (2).
The defective seed release solenoid (29) for switching 8) is attached to the drop guide (27), and the pot seedling (19) taken out from the seedling tray (15) of the seedling placing table (14) by the takeout claw (16) is defective. At this time, the shutter (28) is switched by the solenoid (29), and the defective pot seedling (19) of the ejecting claw (16) is dropped to the outside of the planting claw (17) by the guide of the shutter (28) and the ridge ( 25) It is configured to fall on the upper surface.

Further, the turntable (31) is provided with a plurality of seedling cases (30) ... each of which has a predetermined size and is suitable for transplantation and contains only potted seedlings (19) one by one. ) The turntable (31) is rotatably provided on the upper unit frame (11) and is opened and closed by a supplementary shutter (32).
A seedling chute (34) for connecting the take-out port (33) of 1) and the upper opening of the drop guide (27) is provided, and the turntable (31) is rotated in one direction by a step motor type feed motor (35). The rotation angle of the turntable (31) is detected by the potentiometer-type position sensor (36), and the seedling cases (30) ... Arranged on the same circumference are sequentially moved to the outlet (33). Defective stock release shutter (28) is switched by defective stock release solenoid (29) to take out nail (16)
When the defective pot seedling (19) is dropped to the outside of the planting claw (17), the replenishment shutter (32) is opened by the shutter solenoid (37) to open the outlet (33) to open the seedling case (30). ) From the seedling chute (34) and the drop guide (27), the potted seedling (19) in the pot is planted with nails (1).
7) and dropped the pot seedlings (19) from the turntable (31) instead of the extraction claws (16) into the claws (1).
It is configured to be supplied to 7).

Further, a planting work sensor for detecting the start of planting work for operating each part of the seedling transplanting part (8) by landing the leveling roller (18) and the cultivating soil roller (20) on the upper surface of the ridge (25). (38), a take-out claw sensor (39) for detecting the seedling taking action of the take-out claw (16), and a planting claw (17) for detecting an ascending movement to a position where the pot seedling (19) is inserted. A buzzer (40) for notifying the defective pot seedling (19) by the nail sensor (40) and the stock absent sensor (26), and a seedling replenishment time due to a decrease in the number of remaining pot seedlings (19) on the turntable (31) ( 41), and each sensor (26) (36) (38)
(39) (40), each solenoid (29) (37), the delivery motor (35), and the buzzer (41) are connected to the missing stock replenishment controller (42) formed by a microcomputer. In a transplanter for mounting a seedling tray (15) on the seedling tray (15) and taking out pot seedlings (19), which are vegetable seedlings, from each seedling tray (15) for planting, planting nails (17) from the seedling tray (15). ) Pot seedlings (1
9), and a spare seedling replenishing means for automatically replenishing a planting claw (17) with a spare pot seedling (19) on the basis of the detection result of the stock missing sensor (26). A turntable (31) is provided, and pot seedlings (1) are supplied from the seedling tray (15) to the planting claws (17).
When the item (9) is defective, the turntable (31) is configured to automatically supply the preliminary pot seedling (19) to the planting claw (17).

Then, as shown in FIG. 11, a plurality of pots (4
3) The seedling trays (15) made of synthetic resin, in which the seedlings (15), which are integrally connected vertically and horizontally, are continuously grown, are placed on the seedling tray (14), and are suitable for transplantation. Put only one pot seedling (19) into each seedling case (30) of the turntable (31), run the tractor (1) along the ridge (25), and put the pot seedling in the seedling tray (14). (19) is taken out by the take-out claw (16) and is planted on the upper surface of the ridge (25) by the planting claw (17). As shown in FIG. 10, the start of the planting work for the pot seedling (19) is planted. It is detected by the work sensor (38) and the seedling picking operation of the picking nail (16) is detected by the picking nail sensor (39), and the pot seedling (19) of the picking nail (16) is a defective pot seedling or suitable for transplanting. Check the appropriate pot seedling by the stock absent sensor (26) It is detected, and the planting claw (17) is detected by the seedlings (19) planting claw sensor operation to increase the receiving position (40).

Also, a pot seedling (19) for the extraction nail (16)
Is a suitable pot seedling suitable for transplanting, the pot seedling (19) of the take-out nail (16) is dropped into the inside of the planting nail (17) to perform the planting work in the same manner as in the conventional case, and the germination is poor or the growth is poor. Pot seedlings (19) for picking nails (16) due to defects etc.
When the defective stock is out of stock and the defective stock is released, the defective stock release solenoid (29) is actuated to operate the defective stock release shutter (28).
Of the defective pot seedling (19) which is switched to the imaginary line position of the pick-up claw (16) and drops into the drop guide (27) by the guide of the shutter (28) to the outside of the planting claw (17). Prevent bad pot seedlings (19) from being planted.

Further, substantially at the same time as the defective pot seedling (19) detection of the take-out claw (16), the shutter solenoid (37).
Is operated to open and close the replenishment shutter (32), and the appropriate pot seedling for replenishment is supplied from the seedling case (30) of the turntable (31) through the take-out port (33) and the seedling chute (34). (19) is dropped inside the planting claw (17) to replace the defective pot seedling (19) of the extraction claw (16) with an appropriate pot seedling (1) for replenishing the turntable (31).
9) is planted on the upper surface of the ridge (25) by the planting claw (17) to prevent the occurrence of a stump.

Further, when the pottable seedling (19) for one plant is replenished from the turntable (31) to the planting claw (17) by opening and closing the replenishment shutter (32), the delivery motor (35) operates. Rotate the turntable (31) to move the next seedling case (3) containing pot seedlings (19).
0) is moved to the exit (33) position and made to stand by, and when the number of seedling cases (30) containing pot seedlings (19) is reduced to 2-3, it is turned based on the output of the position sensor (36). A shortage of spare seedlings on the table (31) was detected,
Sounding the buzzer (41) to inform the worker, the worker puts a proper pot seedling (19) for replenishment into the empty seedling case (30), and continues the planting work of the vegetable pot seedling (19). Is.

The feed motor (35) may be omitted and the turntable (31) may be rotated in synchronism with the operations of the take-out pawl (16) and the planting claw (17). Is transmitted to the turntable (31) through a rotation restricting clutch, and the clutch is turned on by the pot seedling (19) replenishing operation of the turntable (31) to rotate the turntable (31) by a predetermined angle. Can also be done.

[0016]

As is apparent from the above examples, according to the present invention, the seedling tray (15) is placed on the seedling placing table (14), and the vegetable seedlings (19) are taken out from the seedling tray (15) for each strain. In the transplanting machine for planting, from the seedling tray (15) to the planting nail (1
Provided with a missing strain sensor (26) for detecting the vegetable seedling (19) supplied to 7), and automatically supplying a spare vegetable seedling (19) to the planting nail (17) based on the detection result of the missing strain sensor (26). The auxiliary seedling replenishing means (31) for replenishing the seedlings is provided. When the vegetable seedlings (19) supplied from the seedling tray (15) to the planting claws (17) are defective, the preliminary seedling replenishing means (31) is used. Since the spare vegetable seedlings (19) are automatically supplied to the planting claws (17), even if a seedling tray (15) in which defective seedlings are mixed between appropriate seedlings is used, it is easy to generate a missing strain. In addition to the prevention, there is no need to perform a supplementary planting work after the planting work, and the workability of planting can be improved and labor can be saved more easily than in the past.

[Brief description of drawings]

FIG. 1 is a rear view of a planting claw portion.

FIG. 2 is an overall side view.

FIG. 3 is a plan view of the same.

FIG. 4 is a rear view of the same.

FIG. 5 is a rear view of the seedling mount section.

FIG. 6 is a side view of the same.

FIG. 7 is an enlarged view of FIG.

FIG. 8 is a rear view of the take-out claw portion.

FIG. 9 is a circuit diagram for supplementing a stockout.

10 is a flowchart of FIG.

FIG. 11 is a partial perspective view of a seedling tray.

[Explanation of symbols]

 (14) Seedling stand (15) Seedling tray (17) Planting claws (19) Pot seedlings (vegetable seedlings) (26) Missing stock sensor (31) Turntable (preliminary seedling supply means)

Claims (1)

[Claims] 1. A transplanting machine for placing a seedling tray on a seedling placing table, picking out vegetable seedlings from the seedling tray for each plant, and planting the seedling trays, a missing strain sensor for detecting vegetable seedlings supplied from the seedling tray to the planting nails. A transplanter characterized by being provided with a preliminary seedling replenishing means for automatically supplementing a planting nail with a preliminary vegetable seedling based on the detection result of the stock absent sensor.