JPH09233987A - Chemical feeder for whole mulch-type soil sterilizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chemical feeder for whole mulch-type soil sterilizer with which even the terminal parts of paddy field is sterilized, the surface of film is covered without being damaged and work safety is improved by dividing a chemical feeding part into left and right parts and making one of them independently freely vertically movable. SOLUTION: A chemical feeding part 3 composed of plural left and right feeding blades 2 projecting downward is linked to the rear part of machine body of a mobile agricultural machine 1 so as to be freely vertically moved, a control roller 4 and a mulch film spreading part 6 for spreading a mulch film 5 on the ground are fitted behind the chemical feeding part 3, further, the chemical feeding part 3 is divided into left and right parts and one of them is made independently freely vertically movable. In this case, a nozzle 12 is mounted at the rear part of the feeding blade 2 and chemicals filled in a tank 13 are pumped up by a plunger type motor-driven pump 14 and sprayed from the nozzle 12 through a feeder pipe 29 into the soil preferably.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soil disinfecting machine connected to a rear part of a body of a mobile agricultural machine, and more particularly to a chemical solution for a full-scale multi-type soil disinfecting machine provided with a chemical solution injecting section and a multi-film laying section. It relates to an injection device.

[0002]

2. Description of the Related Art A conventional soil disinfecting machine for injecting a chemical solution into soil to kill pests in the soil is disclosed in JP-A-59-716.
Japanese Patent Laid-Open No. 52-52
It has been changed to a fully automatic traveling type as shown in Japanese Patent No. 65082 and a towing type as shown in Japanese Utility Model Publication No. 51-51887. Furthermore, in order to prevent adverse health effects on the body due to inhalation of people around them, such as workers and pedestrians, due to the airborne dispersion of the drug solution during spraying, it is actually better to cover the soil surface after drug solution with a mulch film. It is known as disclosed in Japanese Laid-Open Patent Publication No. 57-203782.

[0003]

The problem to be solved is that a manual object is held in a hand and can be walked, so that the efficiency cannot be improved. In the case of a towed type or a fully automatic running type, injection is performed over time. If the chemical liquid evaporates, not only can the bacteria be sterilized in the soil and the pest control effect not be maintained, but with powerful drugs there is a risk of poisoning workers and people approaching them during diffusion, It was limited to the use of low-efficiency chemicals that do not easily evaporate. In addition, the actual exploitation Sho 57-203782
In the method of covering the soil surface after chemical solution injection shown in Japanese Patent Publication with a mulch film, the step of excavating the soil surface with a rotary tiller and making a ridge, injecting the chemical solution into the soil in the ridge and covering with a film is one work Since the device is a backward-moving walk-type cultivator, the working device has a large amount of overhang from the wheels, and when meandering occurs when going straight backward, the chemical spray part easily protrudes from the ridges and goes into the air. Therefore, it is difficult to perform the spraying work on the inside of the ridge due to the dispersion of the chemical liquid, and it is difficult to perform the driving operation such that the driver needs a great deal of effort when turning to lift the entire working device.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to solve the drawbacks of the conventional device, and has taken the following technical means. That is, a plurality of left and right injection swords 2, 2 ... .
In a full-face multi-type soil disinfecting machine 7 in which a chemical liquid injecting section 3 made up of is connected up and down, and a compression roller 4 and a multi film laying section 6 for laying a multi film 5 on the ground are provided behind the chemical liquid injecting section 3. The chemical liquid injecting device 3 is divided into left and right parts, and one of them is independently movable up and down.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 show a full-scale multi-type soil disinfecting machine 7 connected to the rear part of the body of the mobile agricultural machine 1, and a multi-film laying part 6 is provided behind the vertically movable chemical liquid injecting part 3. . At the rear of the transmission case 50, which is a part of the main frame of the mobile agricultural machine 1, a top link 52 is lifted and lowered by a lift arm 51 that is vertically movable.
A front end portion of a three-point link device including the left and right lower links 53, 53 is attached, and a triangular hitch 54 is attached to a rear end portion of the three-point link device. A toolbar 8 described below is integrally attached to the lower end of the triangular hitch 54, and as will be described later, the main frame body 55 and the support frame 5 are provided at the rear side.
Mounting frames such as 6 are protruding.

As will be described below, the chemical liquid injecting portion 3 has a width that is wider than the rear wheels 22, 22, which is the width of the mobile agricultural machine 1, and is a cylinder attached to both left and right sides of a toolbar 8 fixed in the left and right direction. Left and right support bars 10, 10 are attached to the bodies 9, 9 respectively so as to be adjustable in the vertical direction.
0 a plurality of injection swords downward 2. . Is arranged. A plurality of injection swords arranged in the left-right direction at substantially equal intervals 2, 2. .
Are individually attached to the attachment rods 11 at the lower end of the supporting rods 10 so that they can be adjusted up and down independently (not shown), and the injection sword 2 can be adjusted up or down at the same time by one or several supporting rods 10 at once. The chemical liquid injection part 3 is used. A nozzle 12 is attached to the rear part of each of the injection swords 2, a chemical liquid filled in a tank 13 is pumped up by an electric pump 14 of a plunger type, and sprayed into the soil from the nozzle 12 via liquid transfer pipes 29, 29. Is formed.

On the other hand, in front of the mulch film laying portion 6, a wide crushing roller 4 extending over the entire width of the chemical liquid injecting portion 3 is suspended from the main frame body 55, and a film roll for the mulch film 5 is provided behind it. While wearing 15
The pressing roller 16 that also serves as the feeding sensor is lightly pressed against the film roll 15 of the multi-film 5. The pressing roller 16 detects that the multi-film 5 is fed at a constant pitch regardless of the vehicle speed. These members related to the multi-film laying portion 6 are attached to the supporting frame 56, and the supporting frame 56 is attached to the rear end bar 5 of the main frame 55.
It is connected in 7 parts.

It should be noted that the soil surface is temporarily cut open to the left and right when the pouring sword 2 plunges below the surface of the earth.
Since the kerf on the soil surface settles in a direction of becoming narrower with the advancing time and the passage of time, the soil surface is squeezed by the squeeze roller 4. That is, the injection sword 2 and the compression roller 4 need to be separated by a predetermined distance. The soil disinfectant solution injected and sprayed into this soil evaporates upward from the gap of the small crushed soil and tries to fly out into the air. Since it is compacted, it prevents the chemical solution from evaporating into the air and reduces the trouble of the driver sucking it.

The film roll 15 is attached to the front end of the support frame 56 with the roll axis oriented in the left-right direction.
Film sponge wheels 17 and 17 and pressure reducing wheels 18 and 18 are provided behind the left and right ends of the film roll 15, respectively, and the insides of the left and right ends of the multi-film 5 fed from the film roll 15 are located inside the film roll 15. Sponge ring 17
And the squeeze wheel 18 are used to hold it down. Further, the left and right end portions of the film roll 15 are set upside down by selecting either the soil-covering disc 19 or the pressing sponge wheel 20 to perform another work described below.

While the liquid chemical injection parts 3 and 3 are attached to the left and right substantially symmetrical positions with respect to the center line of the traveling direction of the mobile agricultural machine 1, the mulch film 5 covering this upper surface is the previous film (Fig. The film roll 15 is attached at an offset position deviated to the previously laid film side because a new film end is superposed on the end (the left side. On the left side, which is the film superposition side, an adhesive tape roll 23 and a tape guide 26 for holding the superposition of the film are provided.
The film guide rod 24 and the pressing sponge wheel 20 for pressing the tape are provided, and on the field mud side where the film has not been laid previously (on the right side in the figure), the new film end can be attached to the ground surface with an adhesive tape. Since this is not possible, a grooved tool 25, a film guide rod 24, and a cover disk 19 are provided on the right side in order to prevent the film from peeling off by putting the mud on the surface of the mud on the new film. Reference numeral 40 denotes a guide roll, which is provided at a lower position in front of the left and right sponge wheels 17, 17 and guides the multi-film 5 moving in the central portion between the film guide rods 24, 24 when the multi-film is laid. Here, the injection sword 2 and the compression roller 3 are separated by a predetermined distance as described above, but a pair of left and right cult pawls 21 and 21 are provided between them so as to be adjustable in the vertical and horizontal directions. In the example shown in the figure, each of the cultural pawls 21 is provided at the rear position of the rear wheel 22 of the mobile agricultural machine 1 so as to be adjustable in the vertical direction. Even if it can be adjusted vertically and widthwise over the rear of the wheel 22, the same effect is obtained, and the wheel mark on the soil surface is softened and softened by the cult claw 21 to eliminate the dent.

Generally, the work procedure for continuously laying the mulch film 5 while disinfecting the field will be described step by step. First, the mulch film 5 is laid on the ground of the field. Next, a new mulch film 5 is laid adjacent to this, and the front of the field is covered with a film next to it. The film edge of the first mulch film 5 is pressed by the mud of the field, and the next mulch film 5
From the above, the machine configuration differs depending on whether one end is adhered with an adhesive tape and the other end is pressed with mud in the field and this work is performed by reciprocating work or rotating work.

First, in order to lay the first mulch film 5, the entire agricultural mulch type soil disinfecting machine 7 is used in the mobile agricultural machine 1.
When traveling in the field while pulling the
The chemical solution is sprayed into the soil from the nozzle 12 attached to the injection sword 2. At approximately the same time, the cult claw 21 softens the wheel mark. Then, by the left and right grooving tools 25, 25 provided in front of the crushing roller 4, grooves are formed at both left and right ends of the soil surface into which the chemical solution has been injected, and the mud is raised outside. While squeezing the central part of the soil surface where the chemical solution was injected with the squeezing roller 4, the left and right rear parts of the film are pressed by the sponge wheels 17 and 17 in the vicinity of the groove to move the agricultural machine 1 forward. Film roll 15 while being guided by the film guide rods 24, 24 of
The mud, which is unwound from the soil and laid on the soil surface, is raised by the soil-covering discs 19, 19 on the outer side of the sponge wheels 17, 17 and is returned to press both ends of the film.

At this time, since the traces of the wheels are erased by the cult claws 21 and 21, the unevenness of the soil surface is eliminated together with the crushing action of the crushing roller 4, and the mulch film 5 is removed.
Does not adhere to the soil surface and air does not accumulate on the lower surface of the mulch film 5. Therefore, fluttering of the mulch film 5 due to wind can be eliminated, and tearing and peeling of the mulch film 5 can be prevented.

Next, the laying of the second multi-film 5 will be described. Since this work is shown in FIG. 2, it will be explained with reference to the drawing.
When the mobile agricultural machine 1 travels in the field while pulling the full-scale multi-type soil disinfecting machine 7, first, the chemical solution is sprayed into the soil from the nozzle 12 attached to the injection knife 2 of the chemical solution injection section 3. At approximately the same time, the cult claw 21 softens the wheel mark.

Then, a groove is formed on the right side of the soil surface where the chemical is injected by the groove forming tool 25 on the right side, which is provided in front of the compression roller 4, and the mud is moved to the outside in the arrow "a" direction. Drive up and drive. While the central part of the soil surface where the chemical solution is injected is crushed by the crushing roller 4, the left and right rear portions of the film are pressed by the sponge wheels 17 and 17, and the moving agricultural machine 1 advances. Therefore, the mulch film 5 has the left and right film guide rods 24. , 24, is fed from the film roll 15 and laid on the soil surface.

At this time, the left side of the multi-film 5 has the side end of the previously laid film 5a, so that the left end of the new offset multi-film 5 is superposed on the side end so as to overlap. The ends are attached with the adhesive tape 28 drawn from the adhesive tape roll 23 through the tape guide 26. The right end of the mulch film 5 is pressed by the sponge wheel 17 as shown in FIG. 3 while returning the muddy soil raised by the soil cover disk 19 to the groove side formed as shown by the arrow "B", as in the first one. Press the edge of the film located at the bottom of the work groove to fix it. A prevention plate 27 and a compression wheel 18 are provided behind the sponge wheel 17 to level the upper surface of the mud on the groove once. Next, only the polymerizing side is bonded with the pressure-sensitive adhesive roll 28 after pressure-controlling and leveling by the pressure-controlling roll 4,
Air does not remain inside the lower surface of the multi-film 5. Thus, in the second work, the right end portion of the side edge portion of the mulch film 5 is laid in a concave shape in the groove portion,
The side edge of the other end of the mulch film 5 is overlapped with the side edge of the existing mulch film 5a which is covered with soil, and the overlapped portion is adhered with an adhesive tape 28. It is glued and laid. At this time, the soil is sterilized by the chemical liquid injector 2 and the wheel marks are softened and softened by the cult nail 21 as in the previous step.

The laying of the multi-film 5 after the third one is
When performing reciprocating work, since the side edge of the existing multi-film 5a is located on the right side of the mobile agricultural machine 1, the not-shown left side groove making tool 25 is lowered to move the right side groove making tool 25 upwardly. If the offset of the film roll 15 is reversed and the protrusion is moved to the right side, the right side of the mulch film 5 is polymerized and adhered using the adhesive tape roll 23 on the right side (not shown). In the state of 2, the work may be carried out by always looking at the overlapping portion of the mulch film 5a laid last time to the left.

It is obvious that the reciprocating work starts from one end of the field toward the other end, and the revolving work starts from the left and right middle parts of the field, which will not be described. The adhesive tape rolls 23 are attached to the left and right ends of the support frame 56, respectively. When necessary, the lower end of the adhesive tape 28 is stepped on with the sponge wheel 20 to form a side edge portion of the other end of the multi-film 5 as shown in FIG. Existing mulch film 5a covered with soil
As shown in FIG. 1, the adhesive tape 28 is brought into contact with a rotatable roller-shaped tape guide 26 and slowly pulled out while adhering the side edge portions of the film to each other and advancing the moving agricultural machine 1, while the film guide rod is being pulled out. Twenty-four parts are temporarily adhered to the end of the mulch film 5, and the sponge wheel 20 is then strongly pressed and adhered by the weight of the sponge wheel 20.

FIG. 4 is a perspective view of the left and right chemical liquid injecting portions 3 and 3. In the illustrated example, the chemical liquid discharged and delivered from the electric pump 14 through the liquid feeding pipe 29 is discharged from the nozzle 12 at the end portion of the liquid feeding pipe 29. Discharging into the soil, these left and right chemical solution injecting parts 3, 3 lock the supporting rods 10, 10 on the respective cylinders 9, 9 mounted on the tool bar 8 by vertically adjusting pins, and thereby the mounting rod 11 Up and down to adjust the injection depth of the chemical liquid injecting section 3 into the soil separately for the right and left sides.

FIG. 5 shows another embodiment of the height adjustment of the injection portion, which is the front link 3 attached to the rear surface of the tool bar 8.
Rear link 3 attached to the front of 0, 30 and the mounting rod 11
The upper and lower ends of 1 and 31 are constituted by upper and lower links 32 and 33, respectively, to form a four-sided link. When the screw bar 36 is connected between the upper and lower fulcrums 34 and 35 at the front and rear opposite corners of the four-sided link and the handle 37 expands and contracts, as shown in FIG. Can be adjusted upwards,
By fixing the distance between the upper and lower fulcrums 34, 35 with the lock tool 38, the chemical liquid injector 3a can be held while being adjusted in position above the soil surface.

[0021]

According to the present invention, a plurality of injection swords 2, 2. . The chemical injection part 3 consisting of
In a full-face multi-type soil disinfecting machine 7 having a crushing roller 4 and a multi-film laying portion 6 for laying a mulch film 5 on the ground behind the chemical liquid injecting section 3, the chemical solution injecting section 3 is divided into left and right, and one of them is independent. Since the chemical solution injecting device of the whole-face multi-type soil disinfecting machine is characterized in that it can be moved up and down, the whole field is covered with the mulch film 5 and the work is continued. Even if the gap between the side edge and the ridge is less than one working process width, the injection knife 2, which is the chemical liquid injection part 3 on one side, 2. Since the left and right can be independently moved up, the new multi-film 5 can be polymerized without damaging the existing multi-film 5a. Therefore, after spraying the soil disinfectant solution on the soil, the soil is immediately pressed by the compression roller 4 and solidified. While the soil disinfectant solution in the soil is prevented from evaporating into the air, the entire multi-film laying portion 6 at the rear portion can cover the entire film surface without damaging it, and the covering operation can be easily and safely performed.

[Brief description of drawings]

FIG. 1 is an overall side view with a partial cross section.

FIG. 2 is an overall plan view of FIG.

FIG. 3 is a rear cross-sectional view of the soil top soil during the operation of FIG.

FIG. 4 is a partially enlarged perspective view of the main configuration of FIG.

FIG. 5 is a perspective view showing another embodiment of FIG.

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a side view after operating the members of FIG.

[Explanation of symbols]

 1 Mobile Agricultural Machine 2 Injecting Sword 3 Chemical Solution Injecting Section 4 Squeezing Roller 5 Multi-Film 6 Multi-Film Laying Machine 7 Full-face Multi-Type Soil Disinfecting Machine

Claims (1)

[Claims] 1. A plurality of left and right injection swords 2, 2 protruding in a downward direction at a rear part of a body of a mobile agricultural machine 1. . In a full-face multi-type soil disinfecting machine 7 in which a chemical liquid injecting section 3 made up of is connected up and down, and a compression roller 4 and a multi film laying section 6 for laying a multi film 5 on the ground are provided behind the chemical liquid injecting section 3. The chemical liquid injection device for a full-face multi-type soil disinfecting machine, characterized in that the chemical liquid injection part 3 is divided into left and right parts and one of them is independently movable up and down.