JPH0233605Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a method for sowing or fertilizing by discharging seeds or granular fertilizer in a hopper using a feeding device.
Regarding fertilizer application machines.

For example, in a flooded direct sowing machine, seed rice whose surface is coated with an oxygen source such as Culper is put into the hopper, and the seed rice is dropped from the lower end of the hopper into a groove formed on the field surface to cover it with soil. Therefore, it is configured to be dispersed in spots. Normally, it is important for seed rice to be sown in a predetermined amount on the rice field at predetermined intervals for its growth. However, it is extremely difficult to measure the amount of seed sown, and in particular, it is almost impossible to accurately measure the amount of seed sown for each row.

The present invention was developed in view of the above circumstances, and by installing a sensor that detects seeds or fertilizer particles released from a hopper and displaying the detection results of the sensor, the amount of sowing or fertilizer can be determined. The purpose is to provide a sowing or fertilizing machine that can be easily captured.

The present invention will be described in detail below based on drawings showing an embodiment of a flooded direct seeding machine. FIG. 1 is a left side view of a riding flooded direct seeding machine according to the present invention, and FIG. 2 is a plan view thereof. In the figure, D indicates this machine, and three sets of seeding devices are integrally connected to the rear side by a three-point link mechanism. An engine 2 is mounted on the front of this machine D, and the output of the engine 2 is transmitted to the rear wheels 4, 4 via a traveling clutch, and is also transmitted to each seeding device A, which will be described later, via a seeding clutch.
is transmitted to the feed roll.

FIG. 3 is a rear view of one seeding device A, and FIG. 4 is a side sectional view thereof. 3 sets of seeding devices A, A, A
are arranged side by side in the left and right direction behind the main machine D, and each seeding device A connects each support stand 22 fixed to the upper surface of the float 5 with a connecting rod 9 extending laterally. The supporting stand 22 of the central seeding device A is connected via the bracket 3 to a three-point link mechanism consisting of one top link and two lower links provided at the rear of the machine D, and the seeding device The entire device is configured to be able to move up and down with respect to the main machine D. Notches 6, 6 that open vertically and rearward are formed on both sides of the rear of each float 5, respectively, and from the front lower part of each notch 6, 6, along the lower surface of each float 5, in the front-rear direction. Grooving bodies 7, 7 are formed to protrude downward, respectively, and a cultivating soil body 8 is installed at the rear side of each notch 6, respectively.

A hopper 11 having a lid 10 on the top is installed above the support stand 22 erected above each float 9. A falling gutter 12 is formed on the front side of the bottom plate 11a of the hopper 11.
A feeding chamber 13 is provided below 2. A feeding port 14 is opened at the rear of the feeding chamber 13, and a feeding roll 15 is mounted on a shaft within the feeding chamber 13 with its rear portion facing the feeding port 14. A large number of bucket belts 16, 16, . The clutch is configured to be operated by a knob 18.

At the rear of the feeding chamber 13, there is a feeding port 14 at the upper end.
A shutter 21 for receiving seed rice from each bucket 16 of the feed roll 15 is vertically provided facing the tank.
The shooter 21 has a bifurcated structure in which the lower part is divided into left and right sides, respectively, and the middle of each shooter 21 is bent forward so that each lower end feeding port 1 is connected to the float 5.
It faces above the front part of each notch 6 in .

A feeding roll 1 is provided at the bent portion of each shooter 21.
A grain sensor 30 is disposed facing the fall area of the rice seeds released from the grain sensor 5. FIG. 5 is a block diagram showing a grain sensor and its signal processing system. The grain sensor 30 uses a piezoelectric element or a sonoelectric conversion element, and when grains such as rice seeds collide with it, the collision object
It emits an electric signal according to the collision state, and the shutter 21 is tilted backward at an angle of about 45 degrees so that its detection surface faces the falling area of the seed rice discharged from the feed roll 15. It is installed as. As this grain sensor 30, it is convenient to use, for example, a sensor used in the Grain Loss Monitor Model 912 manufactured by SED, but as mentioned above, this sensor emits an electric signal in response to the collision of rice seeds. Any suitable piezoelectric or sonoelectric conversion element and a preamplifier may be combined.

The output of the particle sensor 30 is passed through the bandpass filter 3
2. Bandpass filter 32 is 10~
It is centered around a suitable frequency in the range of 30KHz and effectively passes the signal caused by the collision of rice seeds.
The center frequency and cutoff frequency are determined so as to prohibit passage of the output signal of the particle sensor 30 caused by vibration of the aircraft body or the like.

The output of the bandpass filter 32 is amplified by an amplifier 33 and input to a retriggerable mono multivibrator (hereinafter referred to as monomulti) 34. Due to the collision of one seed rice, the particle sensor 3
The signal obtained by 0, or the signal output from the bandpass filter 32 accordingly, is a steep single-shot signal of about 10 to 30 kHz, but in order to enable stable detection, this monomulti 34 has a frequency of 1.5 to 3.5 kHz. msec
A counter 35 counts the rectangular wave pulses. The output of the counter 35 is sent to the decoder 36
The decoder 36 converts the counting result by the counter 35 into a signal suitable for displaying the Japanese character segment, and this signal is applied to the display 38 via the driver 37. It is digitally displayed at 38. The display 38 is located at the driver's seat 4.
1 is provided on an operation panel 42 located in front of the computer. Note that the counter 35 is equipped with a reset switch 3 that clears the counted contents of the counter to "0".
9 is connected, and when the reset switch 39 is turned on, the counter 35 is reset. The reset switch 39 is connected to the display 38 on the operation panel 42.
Located nearby. Note that the conversion by the decoder 36 is not limited to simply displaying the number of rice seeds, but may be configured to display the sowing weight per unit area from an experimental formula determined in advance.

In the flooded direct seeding machine configured as described above, when each float 5 slides on the rice field, each groove-making body 7 forms a groove on the rice field as it slides on the rice field. On the other hand, coated seed rice is falling from the upper hopper 11 into each feeding chamber 13.
The dropped seed rice is scooped up by each bucket 16 of the rotating feed roll 5 as shown by the arrow A in FIG. .

The seed rice thrown into the shooter 21 collides with the particle sensor 30 provided at the bent part of the shooter 21, passes through the notch 6 from each lower end port 1, and is thrown into the groove formed in the rice field, and the cultivated soil The body 8 covers the seed rice with soil as the machine travels, completing the sowing.

On the other hand, the grain sensor 30 captures the falling rice seeds, and the counter 35 counts the number of pulses emitted from the monomulti 34 in response to the rice seeds falling from the shooter 21 and colliding with the grain sensor 30. , the display 38 digitally displays this number of pulses. Therefore, by visually checking this display 38, the driver can grasp the quantity of seed rice that has been sown.
For example, if you reset the counter 35 by operating the reset switch 39 before starting the sowing operation, you will know the amount of seed rice sown, and if you reset the counter 35 for each row, you will know the amount of seed rice sown for each row. Since the amount is known, it is possible to easily adjust to the target seeding amount, and furthermore, the relationship between the field area and the seeding amount can be easily understood, and the amount of seeding can be easily determined.

In the above-mentioned embodiments, a configuration in which the amount of sown seeds is displayed digitally has been described, but the present invention is not limited to this, and a configuration in which analog display is possible may also be used.Also, in the above-mentioned embodiments, a configuration in which the quantity of sown rice seeds is directly displayed is also possible. However, the present invention is not limited to this, and for example, as described above, the relationship between the quantity and weight of rice seeds may be determined in advance, and the weight of the sown rice seeds may be displayed based on this relationship.

Furthermore, in the above-mentioned embodiments, a submerged direct sowing machine has been described, but the present invention is not limited to this, and can also be applied to a sowing machine for upland cultivation and a fertilizing machine for granular fertilizer.

As detailed above, the present invention provides a sowing or fertilizing machine that releases seeds or granular fertilizer from a hopper using a feeding device to sow or fertilize, and a sensor that detects the released seeds or granular fertilizer, and a sensor for detecting the released seeds or granular fertilizer. The system is equipped with a counter that counts the amount of particles released based on the detection results, a reset mechanism for the counter, and a display that displays the amount of released particles, so the operator can easily grasp the amount of released particles and set the target. The present invention has excellent effects such as being able to easily adjust the discharge flow rate.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention.
The figure is a left side view of a submerged direct sowing machine equipped with a seeding device according to the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a rear view of the seeding device, FIG. 2 is a partial cross-sectional view of the computer and a block diagram of the signal processing system. D...this machine, A...seeding device, 5...float, 7...grooving body, 8...cultivating soil body, 11...hopper, 13...feeding chamber, 15...feeding roll,
16...bucket, 21...shooter, 30...
Particle sensor, 32...Band pass filter, 34
... Monomulti, 35 ... Counter, 36 ... Decoder, 37 ... Driver, 38 ... Display, 3
9...Reset switch.

Claims (1)

[Scope of utility model registration request] A sowing or fertilizing machine that sows or fertilizes by discharging seeds or granular fertilizer in a hopper with a feeding device includes a sensor that detects the released seeds or granules of fertilizer, and a sensor that detects the amount of released granules based on the detection result of the sensor. A seeding or fertilizing machine characterized by comprising a counter for counting, a reset mechanism for the counter, and a display for displaying the amount of released grains.