JPH05111312A - Apparatus for controlling interval between roots for transplanter - Google Patents

Abstract

PURPOSE:To enable continuous control of the interval between roots at an arbitrary time by actuating a solenoid when the number of pulses generated from the root intervals coincides with a predetermined pulse number and delivering a transplantation pot to the transplanting position. CONSTITUTION:A solenoid S is actuated when the number of pulses detected by a detection wheel 18 coincides with the prescribed pulse number set by an interval setter 9 of an instrument panel C. A clutch 5 is turned a revolution to deliver a transplantation pot 2 to the transplanting position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a transplanting machine for planting seedlings with a floor on the ground surface by a transplanting pot.

[0002]

2. Description of the Related Art As a conventional technique relating to an interplant strain adjusting device for a transplanter, a technique such as that disclosed in Japanese Patent Laid-Open No. 57-39704 is known. When the type of transplanted seedlings is changed and the transplanting work is performed by the same transplanter, it is necessary to adjust the distance between the plants.The above-mentioned conventional technology for adjusting the strains detects the movement of the aircraft to the ground. In addition, the discs that generate signals (the number of pulses) according to the type of seedling are exchanged to deal with it. Further, in general, a method of detecting the rotational speed of a detection wheel or a traveling wheel is used to detect the ground movement distance of the airframe.

[0003]

In the above prior art,
Since it is necessary to prepare a plurality of discs according to the type of seedling, replacement work and management are troublesome. In addition, if there is any inconvenience between the set strains, it must be dealt with by a method such as exchanging the disc, and the transplanting work must be interrupted. Further, in the method of detecting the rotational speed of the generally used detection wheel or traveling wheel, since the rotational speed for each ground movement distance is small, it is impossible to take a fine adjustment range between stocks, It is not possible to make delicate adjustments between stocks.

[0004]

The present invention uses the following means in order to solve the above problems of the prior art. That is, in the transplanter in which the transplant pot mounted on the machine is driven from the seedling supply position to the planting position by the operation of the one rotation clutch, the solenoid that operates the one rotation clutch and the setting device that sets the planting interval. And a detector that is attached to the rotating shaft between the detection wheel or the engine and the axle, and that detects the ground movement distance of the aircraft from multiple pulse values, and the calculation that calculates the set value from the setter to the ground movement distance of the aircraft Circuit, a signal generation circuit that generates a signal according to the moving distance, a signal generation circuit that generates a signal according to the detection value from the detector, a comparison circuit that compares both signals, and drives the solenoid when the comparison results match. The inter-stock adjusting device comprises a control unit having a circuit such as a solenoid drive circuit.

[0005]

[Operation] When the stock interval is set by operating the dial or digital setting device arranged on the instrument panel etc., the expected number of pulses that will be generated from the set stock will be calculated in the control unit and actually By the work of, the number of pulses is detected by the detector of the detection wheel or the rotating shaft, the expected number of pulses and the number of pulses are compared in the control unit, and when both match, the solenoid is driven, and the one-rotation clutch operates. Works,
The transplant pot is driven to the planting position.

[0006]

The problems and configurations to be solved by the present invention are as described above. Next, the embodiments of the present invention shown in the accompanying drawings will be described. FIG. 1 is a side view of a transplanter using the inter-plant regulator of the present invention, FIG. 2 is a block diagram showing the device structure of the inter-plant regulator, FIG. 3 is a flow chart showing a control system by a detection wheel, and FIG. FIG. 5 is a block diagram showing the structure of a detector setting device for setting the detector of the detection wheel or the rotary shaft for traveling, and FIG. 6 is a drawing showing the details of the detection wheel 18 and the slit portion 30. Is.

The overall construction of the transplanter will be described with reference to FIG. An engine E and a mission case M are formed in the front part, and traveling wheels W are attached via a chain case. A steering section is provided above the rear part of the steering wheel H.
And instrument panel C. The planting section for performing the planting work is formed below the steering section.

The structure of the planting section will be described. The transplant cup 1 is attached from the rear part of the mission case M of the transplanter main body through the parallel link 3, and the pot 2 is vertically provided at the lower part thereof. Further, the drive link 4 is connected to the disc body 5 from the transplant cup 1. The disc body 5 has a one-rotation clutch structure which is driven by the operation of the solenoid S about the planting rotary shaft 6, and is driven by the transmission case M via the belt 7. Each time the disc body 5 rotates half a turn, the drive link 4
Is displaced to raise and lower the transplantation cup 1 and the pot 2, and when the pot 2 is lowered, a hole is formed in the ground surface by the claw portion at the tip, the seedling P with floor in the transplantation cup 1 is transplanted to the ground surface, and the drive link 4 is again used. Rises and the transplant cup 1 and pot 2 return to their original positions. Further, a seedling feeding device 8 is arranged above the transplanting cup 1, and one seedling P with a floor is placed in the transplanting cup 1 after the planting is completed, in association with each rotation of the disc body 5. They are transferred one by one.

The present invention is an inter-strain adjustment device in a transplanter having the above-mentioned structure, and as shown in FIG.
The detector 10 or 11, the control unit 12, and the solenoid S are included. The stock setting device 9 is composed of a digital device or a dial, and is provided on the instrument panel C.
It is a device that is attached to a plant or the like, and an operator sets the plant spacing according to the type of seedling, the difference in the plant spacing depending on the region, the difference in the plant spacing due to the soil difference, and the like. The detector is used to detect the actual distance traveled by the transplanter to the ground, and the detector 10 is arranged on the detection wheel 18 attached to the lower part of the body or the lower rear part, or from the engine E to the axle of the running wheel W. The detector 11 is arranged on the high-speed rotating shaft 19 arranged in the mission case M between the two. As shown in FIG. 1, the detector 10 of the detection wheel 18 has a large number of slits 30 around the axle of the detection wheel 18.
The slit 10 is provided with an optical sensor or the like, and the detector 10 receives an optical signal or the like that blinks due to the action of the slit as the detection wheel 18 rotates, and sends it to the controller 12 as a pulse signal. There is. As described above, by providing a large number of slit portions 30 on the circumference instead of providing one slit portion 30 in the detection wheel 18, the length of each rotation speed of the detection wheel 18 Instead of setting the distance between the stocks, it becomes possible to set the distance between the stocks for each one of the slit portions 30 with a slight distance.
In FIG. 6, the shapes of the detection wheel 18 and the slit portion 30 are illustrated in detail.

Further, by providing the detector 11 on the high-speed rotating shaft 19 in the mission case M, rather than setting the stock distance by the length of each rotation of the traveling wheel W, one rotation of the high-speed rotating shaft 19 is performed. Since a signal is output for each multiple of, it is possible to set a delicate adjustment between stocks, and it has become possible to set a stock distance in a state close to stepless. By increasing the number of rotations of the high-speed rotation shaft 19 infinitely and increasing the number of slits 30 infinitely, the adjustment interval can be brought closer to a stepless state. Therefore, the high-speed rotating shaft 19 is an upper shaft near the engine E, which is separated from the traveling wheels W. When a traveling transmission device is interposed between the high speed rotation shaft 19 and the traveling wheels W,
Every time a shift is made by the traveling transmission, a correction is performed in the control circuit so that the influence of the rotation speed due to the gear change is not caused between the stocks.

The internal structure of the control unit 12 will be described with reference to FIGS. First, the case of detecting the moving distance from the detection wheel 18 will be described with reference to FIGS. 2 and 3. The set value set by the inter-stock setter 9 is used by the arithmetic circuit 13 to detect wheel moving distance (1)
To the signal generation circuit 1 based on the calculated distance.
Set the expected pulse number (2) in 4. Then, in the actual work, the detection value detected by the detector 10 having the above structure is replaced by the signal pulse in the signal generating circuit 15. The comparison circuit 16 compares the preset number of pulses to be generated and the pulse value (3) generated by the actual movement of the detection wheel.
When the two numbers match each other (4), a signal is sent to the solenoid drive circuit 17 for driving the solenoid, and the solenoid S is operated (5) to drive the disc body 5 which is a one-rotation clutch. Then, the planting work is performed.

Further, when the moving distance is detected from the high speed rotation shaft 19, the setting value by the stock setting device 9 is set based on the rotation speed of the traveling wheel W. This setting value is calculated by the arithmetic circuit 1.
In Fig. 3, after replacing the traveling distance W of the traveling wheel W with the axle distance (6), it is multiplied by the reciprocal of the reduction gear ratio obtained from the position of the transmission gear during operation (7), and the rotation speed of the high-speed rotation shaft 19, that is, the high speed The number of expected pulses (8) that will be generated by the rotation of the rotating shaft 19 is set by the signal generating circuit 14, and in actual work, from the detector 11 attached to the high speed rotating shaft 19 through the signal generating circuit 15. The generated pulse value (9) from the rotary shaft for traveling is compared by the comparison circuit 16, and if they match (4), the solenoid S is driven via the solenoid drive circuit 17 (5). The detector 11 on the high-speed rotation shaft 19 counts the number of rotations when the pot clutch operation, that is, the planting work is started. Further, as the reduction ratio is larger, the number of rotations of the high-speed rotation shaft 19 for each rotation of the traveling wheels W is larger, and accordingly, the number of pulses from the detector 11 is larger, so that the selection range of the stock setting is widened and the accuracy is increased. ..

The solenoid drive signal transmitted to the solenoid drive circuit 17 is output for a certain period of time and returns to its original state. Further, the pulse value counted from the detection wheel 18 or the high-speed rotation shaft 19 is cleared at the moment when the set number of pulses matches, and the counting is started from the beginning.

As described above, the present invention uses the detector 10 in the detection wheel 18 or the detector 11 in the high-speed rotation shaft 19 which has a large number of pulses for each ground movement distance, so that the stepless adjustment between stocks is possible. Therefore, since it is possible to finely adjust the strains between trial strains even after the trial work or during the transplant work, a reliable transplant work is provided.

Further, by configuring the detector setting device 20 for setting the detector as shown in FIG. 5, either one of the detector 10 by the detection wheel 18 and the detector 11 by the high speed rotation shaft 19 is selected. , To increase the accuracy, the detector 10
It is also possible to average and count the pulse values from both the detector 11 and the detector 11.

[0016]

The present invention has the following effects by being configured as described above. In other words, the interplant strain adjustment in the transplanter can be performed steplessly and easily during the transplanting work by using a dial or digital setting device arranged on the instrument panel or the like.

[Brief description of drawings]

FIG. 1 is a side view of a transplanter using the interplant strain adjusting device of the present invention.

FIG. 2 is a block diagram showing a device structure of an inter-stock adjusting device.

FIG. 3 is a flow chart showing a control method by a detection wheel.

FIG. 4 is a flowchart showing a control method using a rotary shaft for traveling.

FIG. 5 is a block diagram showing a structure of a detector setting device for setting a detector of a detection wheel or a rotary shaft for traveling.

6 is a side view showing details of a detection wheel 18 and a slit portion 30. FIG.

[Explanation of symbols]

 1 Transplanting cup 2 Pot 5 Disc body 9 Inter-strain setting device 10 Detector 11 Detector 18 Detection wheel 19 Running rotation shaft S Solenoid W Running wheel

Claims (1)

[Claims] 1. An interplant strain adjusting device for a transplanter, wherein a transplant pot mounted on a machine is driven from a seedling supply position to a planting position by operating a one-rotation clutch, and a solenoid for operating the one-rotation clutch. , A setter that sets the planting interval, a detector that is attached to the rotating shaft between the detection wheel or the engine and the axle, and that detects the ground movement distance of the aircraft from multiple pulse values, and the set value from the setter An arithmetic circuit for calculating the ground movement distance of the aircraft, a signal generation circuit for generating a signal according to the movement distance, a signal generation circuit for generating a signal according to the detection value from the detector, a comparison circuit for comparing both signals, and An interplant strain adjuster for a transplanter, comprising a controller having a solenoid drive circuit for driving a solenoid when the comparison results match.