JPH0751013B2 - Rice transplanter ground supply device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a ground-feeding device for a rice transplanter that feeds the stored material of a storage portion to a field by operating a feeding mechanism when a planting arm is planted. The present invention relates to a device for supplying fertilizer, chemicals, etc. to a paddy when the machine body is run with the planting arm activated.

[Conventional technology]

Conventionally, as a device configured as described above, a full-scale shokai 62-164 has been used.
There is what is shown in Japanese Patent No. 724, and in this reference, it is configured to operate the feeding mechanism by the power from the planting arm, and the detection result from the sensor that measures the weight of the reservoir is set at regular intervals. It is configured so that the consumption amount of the stored material can be obtained from the reduced weight taken in and the delivery amount of the delivery mechanism can be adjusted based on the delivery amount.

[Problems to be Solved by the Invention]

Considering the conventional example here, based on the weight of the storage portion, in the configuration for determining the delivery amount, using a non-contact type sensor such as an optical sensor or an ultrasonic sensor,
Although it has the advantages that the structure is simpler and the accuracy can be relatively increased compared to the case where the remaining amount of the stored material in the storage portion is obtained, on the other hand, like the above-mentioned conventional example, at regular intervals, that is, after a fixed time elapses. When the weight of the storage unit is measured for each time, for example, when the operation is interrupted, such as when the machine body is turned on the headland, the time when the operation is interrupted appears as an error in the feed amount. In some cases, there is room for improvement.

An object of the present invention is to reasonably configure a device in which, when a rice transplanter is run and fertilizer or the like is supplied to a paddy field, the supplied amount is maintained as accurately as possible to a desired value.

[Means for Solving the Problems]

A feature of the present invention is that, in the device for supplying the stored material in association with the operation of the planting arm as described above, the input means for presetting the supply amount of the stored material per unit operation number of the planting arm is provided. Together with a sensor for measuring the weight of the reservoir stored in the reservoir, and a counter for counting the number of times the planting arm operates, the reservoir when counting the number of unit operations of the planting arm by the counter Supply
Provided is a supply amount determination means that is calculated based on the decrease in weight measured by the sensor, and when an error occurs between the value set by the input means and this supply amount determination means, this error is reduced. In that it has an adjusting means for operating the supply amount of the feeding mechanism in the direction of
The effects are as follows.

[Action]

According to the above feature, the supply amount of the stored material when the counter counts that the planting arm has operated a unit number of times during the operation by the rice transplanter is calculated based on the decrease in the weight measured by the sensor by the supply amount determination means. At the same time, if there is an error between this supply amount and the value set by the input means, the adjusting means operates the supply amount of the feeding mechanism in the direction of reducing the error.

In other words, in this configuration, control is performed based on the number of times the planting arm is operated, so even when the work is interrupted, for example, when the aircraft is swiveled on a headland, during actual work (for example, during seedling planting work). ) Only, it is possible to obtain an accurate supply amount of the stored material, and when an error occurs, the adjusting means automatically reduces the error, so at the time of operation, the supply amount of fertilizer etc. to a predetermined area of the paddy field Alternatively, the amount of fertilizer supplied to one seedling can be maintained at a preset value.

〔The invention's effect〕

Therefore, when the rice transplanter is run and the fertilizer is supplied to the paddy field, a device that can accurately maintain the supplied amount at a desired value without any artificial operation can be reasonably constructed. It was.

In particular, in the present invention, the storage amount of the storage in the storage unit is measured by weight, so that the storage amount of the storage is measured based on the volume using, for example, an optical sensor or an ultrasonic sensor. Although it is simple, it also has an effect of enabling accurate control by measuring an accurate value.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 6, the seedling planting device (A) is movably mounted on the rear portion of the traveling machine body (2) having the front and rear transportations (1) and (1) via the link mechanism (3). Connected to form a riding type rice transplanter.

As shown in FIG. 4, the seedling planting device (A) is a traveling body (2).
A power transmission case (4) to which power is transmitted from, a plurality of chain cases (5) to which power from this power transmission case (4) is transmitted, ..., A rotation case (15) provided in each of these chain cases (5) A pair of planting arms (6) ..., a seedling stand (7) on which a mat-shaped seedling (W) is placed, a plurality of leveled floats (8) ... This rice transplanter is provided with a fertilizer application device (B) (an example of a ground supply device) that supplies fertilizer to the paddy field at the same time as the seedling planting work.

That is, the fertilizer application device (B) feeds the fertilizer (9) from the hopper (10) serving as a storage unit for storing the fertilizer (9) by the feeding mechanism (11), and at the same time, makes a groover via the hose (12). The fertilizer application device (B) is configured to send to (13),
The drive shaft (14) of the feeding mechanism (11) and the rotating case (1) so that the feeding roll (11a) provided in the feeding mechanism (11) is reciprocally operated by the power from the planting arm (6).
And 5) are interlocked with each other via a rod (16) and an operation arm (17).

Further, in this fertilizer application device (B), the amount of the fertilizer (9) supplied to one plant of the seedling to be planted by the planting arm (6) is set in advance (supplied per unit area of paddy field. It is also possible to preset the amount of fertilizer (9)), and an automatic adjustment system is provided to maintain this supply amount during work.

That is, this automatic adjustment system can represent its configuration as shown in FIG. 1, and in this configuration, the input means (C) for presetting the supply amount of the fertilizer (9) to one plant of the seedling.
And a sensor (D) for measuring the weight of the hopper (10) and a counter (E) for counting the number of times the planting arm (6) is operated.
A supply amount determination means (F) for determining a supply amount from a reduction in weight when the planting arm (6) operates a unit number of times by inputting a signal from each of them, an input means (C), and a supply amount determination means ( F) Adjusting means (G) for adjusting the amount of payout of the payout mechanism (11) based on the respective errors so as to reduce the errors.
2 to 5, the input means (C) comprises a potentiometer (19) operated by a dial (18), and the sensor (D) comprises a stay (20). The horizontal frame (22) supported by the chain case (5) via the hopper (1) so as to be swingable around the support shaft (23).
The counter (E) is a pressure-sensitive type that is sandwiched between a bracket (24) that supports (0) and a counter (E) that is provided near the rotating case (15) and a control device (27). ) And a part of the program (specifically, steps # 4 and # 5 in the flowchart of FIG. 3), the supply amount determination means (F) is a part of the program (specifically, The electric motor (28) is constituted by only the steps # 1, # 3, # 6, and # 9 in the flowchart of FIG. 3, and the adjusting means (G) adjusts the feeding amount during one reciprocating operation of the feeding roll (11a). ) And a part of the program (specifically, step # 11 in the flowchart of FIG. 3).

The amount of delivery of the delivery roll (11a) is adjusted by adjusting the volume of the concave portion formed on the outer surface of the delivery roll (11a), and this adjustment is carried out on the gear (29) fitted onto the drive shaft (14). The pinion gear (30) of the electric motor (28) is meshed with the gear (29).

In addition, in this automatic adjustment system, the number of hoppers (10) that correspond to the fertilization lines (corresponding to the planting lines of the seedlings) so that the supply amount can be adjusted independently for each line of the fertilization system ... The sensors (D) are provided for the respective units, the feeding mechanism (11) is provided with the electric motors (28) for the respective units, and further,
In this automatic adjustment system, when the weight of each hopper (10) detected by the sensor (D) ...
There is also provided alarm means for emitting a sound from the speaker (32) at the same time as the lamp (31) is turned on.

Further, the control device (27) is provided with a microprocessor (not shown), and its operation is, as shown in FIG. 3, when the control is started, the potentiometer (which constitutes the input means (C) ( The signal from 19) is input through the A / D converter (33), and the value is held as the planned supply amount (Wo) (# 1 step).

Next, the remaining amount of the fertilizer (9), which is the reference for operating the alarm means, is input from the potentiometer (34) via the A / D converter (33), and the value is the alarm operation remaining amount. (W
_E ) is held (# 2 step).

Next, the signals from the respective sensors (D) ... Are input through the A / D converter (33), and the value is held as the weight (W _A ) of the hopper (10) before the start of counting ( # 3 step), after these processes, the proximity switch (2
Based on a signal from 6), after the planting arm (6) is actuated set number (# 4, # 5 step), the weight of the # 3 steps as well as the count after the end of the hopper (10) (W _B) Is held (# 6 step).

Then, the weight (W _B) and to compare the alarm activation remaining amount (W _F), W B _<condition W _E performs only alarm activation as described above when a condition is satisfied (# 7, # 8 step ).

_Then, W A reduction of fertilizer in the hopper by operation of -W _B seeking (Wc), _further, W O supply schedule amount calculation -W _{C (W O} and the actual feed amount _{(W C)} and the Error (deviation) between
W) is calculated (# 9 step), and this error is a predetermined value (N).
If it is a smaller value, control is performed again from step # 1, and if this error is a value larger than the predetermined value (N),
The electric motor (28) is operated via the driver (35) in the correction direction by an amount corresponding to (ΔW) (steps # 10, # 11), and this operation continues until this control system is reset. It is done (# 12 step).

[Other Embodiments] The present invention can be applied to, for example, an apparatus for supplying a chemical to a paddy field in addition to the above-mentioned embodiments, and a single sensor measures the reduction in the weight of the storage section corresponding to all the articles to obtain all the articles. The fertilizer application amount can be adjusted at the same time, and the supply amount determination means can be configured without using software, such as a combination of logic gates.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 shows an embodiment of a rice transplanter ground supply device according to the present invention. FIG. 1 is a block diagram showing an outline of the device, FIG. 2 is a block circuit diagram showing a control system of the device, and FIG. A flow chart showing the operation of the device, FIG. 4 is a side view of the seedling planting device and the fertilizer application device, FIG. 5 is a front view of a feeding amount adjusting system of the fertilizer application device, and FIG. 6 is an overall side view of the rice transplanter device. is there. (6) …… Planted arm, (9) …… Storage, (10) ……
Reservoir, (11) ... Feeding mechanism, (C) ... Input means,
(D) ... Sensor, (E) ... Counter, (F) ... Supply amount determining means, (G) ... Adjusting means.

Claims (1)

[Claims] 1. A ground feeding device for a rice transplanter, which feeds a stored material (9) in a storage portion (10) to a field by a feeding mechanism (11) when a planting arm (6) is planted. Reservoir (9) per unit operation number of said arm with plant (6)
Of the sensor (D) for measuring the weight of the stored material (9) stored in the storage section (10) and the planting arm (6) while providing an input means (C) for presetting the supply amount of A counter (E) for counting the number of operations is provided, and the supply amount of the stored material (9) when the number of unit operations of the planting arm (6) is counted by the counter (E) is measured by the sensor (D). Supply amount determination means (F) determined based on weight reduction
When an error occurs between the value set by the input means (C) and the supply amount determination means (F), the feeding mechanism (11) is provided so as to reduce the error. ) A device for supplying rice to the ground of a rice transplanter, comprising an adjusting means (G) for controlling the supply amount.