JP2002305917A - Sowing machine and agrochemical-applying hopper of sowing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the application of a fertilizer and an agrochemical, when a seedling box for pots is sowed. SOLUTION: This sowing machine 10 is formed by disposing a fertilizer applying hopper 13 on the upstream side of a bed soil hopper 14, and disposing an agrochemical-applying hopper 16 between a sowing hopper 15 and a covering soil hopper 17. In the agrochemical-applying hopper 16, a shield is disposed between a shutter plate and a rotary brush disposed at a position facing an agrochemical-applying roll, thus forming a space for circulating the agrochemical. The agrochemical flied up with the rotary brush is guided below the shield in the space, thus preventing the wasteful use of the agrochemical and uniformly applying a proper amount of the agrochemical to the seedling boxes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sowing machine and a medicine hopper of the sowing machine. More specifically, the present invention relates to a method of automatically sowing a seedling box and simultaneously performing fertilization and medicine.

[0002]

2. Description of the Related Art Conventionally, a sowing machine that continuously and automatically sows and covers soil in a seedling box provided with a pot portion in a lattice shape has been widely used.

FIG. 3 shows a conventional seeding machine 1 in which a seedling box N is set at an end 2a of a frame 2 on the upstream side in the feeding direction of the seedling box N (indicated by a black arrow in the figure). A box automatic supply device 3 is provided, and a floor soil hopper 4, a seeding hopper 5, and a covering soil hopper 6 are arranged on the frame 2 in order from the upstream side to the downstream side. In the sowing process operation by the seeding machine 1, a large number of seedling boxes N set in the seedling box automatic feeding device 2 are sent out one by one, and the floor soil is supplied to the pot portion of the seedling box N from the floor soil hopper 4, and then seeded. Seeding is performed by the hopper 5, and then the covering is supplied by the covering hopper 6, so that the seeding to the seedling box N is automatically completed.

[0004]

The chemicals used for growing seedlings are of a type that can be applied when seeding a seedling box.
Conventionally, since there was no such drug, the drug is generally administered at the time of transplantation to a field or after transplantation. Along with this fact of drug application, fertilization is also performed not at the time of sowing but at the time of transplantation to a field or the like. Therefore, the work at the time of transplantation or the like requires a drug application and fertilization in addition to the original transplantation work, so that there is a problem that preparation of the transplantation work requires a great deal of labor and time.
In addition, there is also a problem that it is difficult to uniformly apply an appropriate amount to seeds in application of medicine or fertilization at the time of transplantation or the like.

[0005] Under such circumstances, there has been a strong demand for automatic dispensing at the time of sowing, and development of drugs has been developed to meet this demand, and the particle size corresponding to application at the time of sowing has been reduced. Lightweight drugs are also starting to appear on the market. In response to this new chemical, a seeding machine for seedling boxes without a pot has been developed that has a dispensing hopper between the seeding hopper and the soil hopper to perform sowing and dispensing. ing.

However, in a seeding machine for a seedling box having a pot portion, it is difficult to uniformly apply a small amount of a light-weight drug with a small particle size to a large number of pot portions, and the drug adheres to a brush or scatters. It is very difficult to apply medicine continuously and continuously, and in fact, automatic seeding has not been realized with a seeding machine for a pot seedling box. Furthermore, at present, the sowing machine that enables fertilization in addition to sowing and application,
There is no sowing machine for a seedling box of a type having no pot portion, and the above-described problem is not solved yet and is left as it is.

[0007] The present invention has been made in view of the above-mentioned problems and the present situation, and has a method of applying fertilizer when sowing a seedling box for a pot.
The task is to enable drug administration.

[0008]

In order to solve the above-mentioned problems, the present invention relates to a seeding machine provided with a floor soil hopper, a seeding hopper, and a covering soil hopper in order from an upstream side in a feeding direction of a seedling box. And a seeding hopper is provided between the seeding hopper and the cover soil hopper to provide fertilization and medicine application simultaneously with seeding in a seedling box.

As described above, by newly adding a fertilizer application hopper and a chemical application hopper, fertilization and application of medicine at the time of sowing can be performed automatically. The fertilizer application hoppers are arranged in the above order for the following reasons. That is, when placed before and after the seeding hopper, fertilizer is applied to the vicinity of the seeds, the seeds raise so-called fertilizer, the growth of the seedlings stagnates, and in the worst case, the seedlings die, preventing such problems. That's why. Also, if it is located downstream of the covering soil hopper,
Fertilizer will be applied from the top of the soil, and when the seedling boxes after work are stacked, the fertilizer in the lower seedling box will adhere to the lower surface of the pot part of the seedling box stacked above, and waste of fertilizer This is to prevent it. Therefore, by arranging the fertilizer application hoppers in the above order, the formation of the root pot is promoted by the fertilizer, so that seedlings with good pot formation can be grown, and the transplanting accuracy at the time of transplantation can be improved.

[0010] Further, if the chemical is basically applied to the pot portion of the seedling box, the effect is produced irrespective of the position of the seed, but by disposing the chemical hoppers in the above order, the following inconveniences are caused. By avoiding this, an appropriate amount of drug can be applied uniformly. In other words, if it is arranged on the upstream side of the floor soil hopper, the medicine is applied to the bottom of the pot, and Y
The medicine having a small particle diameter falls out of the groove having the letter shape, so that the medicine cannot be effectively used and the medicine is wasted. In addition, if it is arranged on the upstream side of the seeding hopper, the seeding depth in the pot portion cannot be kept constant, and the amount of medicine cannot be kept constant. Furthermore, on the downstream side of the soil covering hopper, the medicine in the lower seedling box adheres to the lower surface of the pot portion of the seedling box stacked above when the seedling boxes are stacked, and the medicine is wasted.

A seeding hopper is provided in a seeding machine provided with a seeding hopper. The medicine feeding hopper is arranged below a partition plate of the hopper with a rotating brush and a drug feeding roll facing each other with the drug feeding roll facing down. Forming a space for medicine circulation below the shielding plate by providing a shielding plate for closing the space between the partition plate and the rotating brush, and shielding the medicine wound up by the rotating brush in the space. A dispensing hopper for a seeding machine, which is configured to be guided downward by a plate, is provided.

When such a dispensing hopper is provided in a sowing machine, a medicine which can be applied at the time of sowing can be continuously and automatically dispensed. That is, since the medicine for seeding is extremely small and light, even if the conventional form of a seeding hopper or the like is applied as it is, a large amount of excess medicine is wiped off by the rotating brush with respect to the medicine applying roll having a large number of concave portions on the surface. This causes a situation in which it is difficult to continuously administer the drug, and the amount of wasted drug increases.

However, by providing the shielding plate as described above, the scattered medicine is received by the shielding plate, guided downward along the partition plate, and sent again to the drug dispensing roll side, thereby enabling continuous drug application. Become. In addition, the scattered medicine is also recovered in such a circulation, and the medicine which is not applied and wasted can be reduced as much as possible.

It is to be noted that a fixed brush for wiping the surface of the drug applying roll is provided in the space formed by the shielding plate so that the medicine on the surface of the drug applying roll can be removed to some extent before the wiping of the rotating brush. preferable. When the fixed brush is provided in this manner, the amount of the medicine adhering to the rotating brush when the rotating brush is wiped can be greatly reduced, the medicine can be continuously and more reliably applied, and the amount of the medicine remaining in the concave portion of the medicine applying roll becomes an appropriate amount. In addition, the accuracy of dispensing seeds can be improved. Also,
Guide of medicine by shield plate when fixed brush is provided,
If the medicine is circulated behind the fixed brush, it can be returned to the drug application roll side without being blocked by the fixed brush. The above-mentioned dispensing hopper is applicable to a seeding machine having no fertilizing hopper in addition to a seeding hopper and a fertilizing hopper.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A seeding machine according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a seeding machine 10 for a pot seedling box according to an embodiment of the present invention,
A frame 11 extending along the feeding direction of the seedling box N (indicated by a black arrow in the figure) has an upstream end 11a in the feeding direction.
, A seedling box automatic supply device 12, a fertilizer application hopper 13, a floor soil hopper 14, a seeding hopper 15, a chemical application hopper 16, and a covering soil hopper 17 are arranged in this order from the to the downstream end side 11b. The seedling box automatic feeding device 12, the floor soil hopper 14, the seeding hopper 15, and the soil covering hopper 17 are the same as those in the related art, and the speed controller 12a provided in the seedling box automatic feeding device 12 controls the seedling box N Adjusting the feed speed. The seeding amount and the supplied soil amount are linked to the feeding speed of the seedling box N.

The fertilizing hopper 13 has the same configuration as the seeding hopper 15 and the like, and is provided with a fertilizing roll and a rotating brush (not shown) opposed to each other below a fertilizing hopper portion 13a having a large opening at the top for feeding fertilizer. The fertilizer is supplied to the seedling box N flowing on the frame 11 by the mutual rotation of. The amount of rotation of the fertilizer roll and the rotating brush is also linked to the feed speed of the seedling box N, and the fertilizer is applied at a timing that matches the feed speed of the seedling box N.

FIG. 2 shows a medicine dispensing hopper 16, in which a medicine dispensing roll 21 and a rotating brush 22 are vertically arranged below a hopper section 20 for introducing a medicine. The hopper section 20 has a bottom surface as an inclined bottom surface 20a, and the inclined bottom surface 2a.
A shutter plate 20b which can be opened and closed up and down is provided as a partition plate so as to be orthogonal to 0a, and the opening width of the medicine supply port 20c of the hopper 20 is adjusted.

The drug application roll 21 disposed below the shutter plate 20b is rotatably disposed at a position where it contacts the upper surface Na of the seedling box N fed on the frame 11, and the roll surface 21a has a concave portion 21b into which the medicine enters. Are provided corresponding to the positions of the pot portions Nb of the seedling boxes N arranged in parallel. Since the applied medicine is extremely small and lightweight, a drop spring existing in a concave portion such as a seeding roll is not provided.
Above the drug dispensing roll 21, a brush 22
The rotating brush 22 having a is provided in contact with the roll surface 21 a of the medicine applying roll 21, and a brush cover 23 is also provided above the rotating brush 22.

A shielding plate 24 is provided between the rotating brush 22 and the shutter plate 20b to close the gap between the rotating brush 22 and the shutter plate 20b. And medication roll 2
A space K for circulating the medicine is formed below the shielding plate 24 by a part of the space 1. The shielding plate 24 has a shape in which a bent portion 24d is provided on one end side, and the bending point 24a is
And the bent end 24b is arranged near the shutter plate 20b, while the other end 24c is in contact with the shutter plate 20b.
At the height of the rotation center 22b of the rotating brush 22
It is located near the tip of 2a.

In the space K, a fixed brush 25 is provided in a substantially horizontal direction, and a brush tip 25a is brought into contact with the roll surface 21a of the drug application roll 21. A medicine receiving case 26 is also provided on the opposite side of the rotating brush 22 from the space K. Further, since the medicine applying roll 21 and the rotating brush 22 need to be rotated at a higher speed than the seeding hopper 15 or the like because the medicine is extremely small and lightweight, the medicine applying hopper 1
6 is provided with a dedicated motor (not shown). The directions of rotation of the dispensing roll 21 and the rotating brush 22 are the same.

The drug application to the seedling box N by the drug application hopper 16 is performed while the drug Y introduced into the hopper 20 is
It flows downward along 0a and flows down to the drug application roll 21 through the supply port 20c (indicated by a thick black arrow in the figure).
The drug Y that has flowed down enters the concave portion 21b of the roll surface 21a, and at the same time, is deposited in a large amount on the roll surface 21a. The medicine Y in the concave portion 21b and on the roll surface 21a is carried upward by the rotation of the medicine applying roll 21.

The surface Y of the roll 21a with the drug Y transported upward
A certain amount of the substance deposited on the top is wiped downward by the fixed brush 25, and the remaining medicine Y is carried to the position of the rotating brush 22 by further rotation. Rotating brush 22
Wipes the roll surface 21a by high-speed rotation,
An appropriate amount of the drug Y is left inside, and the other excess drug Y is blown off. Thereafter, the medicine Y in the concave portion 21b is carried to the seedling box N flowing below the drug applying roll 21 by the further rotation of the medicine applying roll 21, and the medicine Y drops by the concave portion 21b facing downward, and the seedling box N A suitable amount of the medicine Y is uniformly applied to each of the pot portions Nb.

The medicine Y blown off by the rotating brush 22 scatters in the space K along the shielding plate 24 extending obliquely upward on the shutter plate 20b side, and the bent portion 24d of the shielding plate 24 and the shutter plate Turned downward at the top of 20b. After that, it is wrapped around the rear side of the fixed brush 25 along the shutter plate 20b, descends along the inclined bottom surface 20a, and is again sent to the drug applying roll 21 side (indicated by a dashed arrow in the figure). Therefore, the scattered drug Y
Circulates through the space K as described above, so that the medicine Y is applied without wasting.

There is a medicine Y that enters the brush portion 22a of the rotating brush 22 and adheres due to the wiping of the rotating brush 22, but the medicine Y thus adhered to the space K due to the rotation of the rotating brush 22. It is carried to the opposite side and falls into the medicine receiving case 26 (indicated by a dashed line arrow in the figure). The medicine Y accumulated in the medicine receiving case 26 is again supplied to the hopper section 20 to minimize the waste amount of the medicine Y.

As described above, the seeding machine 10 includes the fertilizer hopper 1
3 and the dispensing hopper 16 automatically enable fertilization and dispensing simultaneously with seeding on the seedling box N for pots, and also uniformly dispens an appropriate amount to the pot portion Nb of the seedling box N. The dispensing hopper 16 can be applied to a sowing machine of a type that does not include a fertilizing hopper but includes a sowing hopper, a covering soil hopper, and the like, in addition to being used in combination with the fertilizing hopper 13.

[0026]

As is clear from the above description, when the seeding machine of the present invention is used, even if it is difficult to realize the seedling box for pots, it is possible to apply fertilization in addition to sowing simply by setting the seedling box. Since drug application can be performed automatically, the labor required for growing seedlings can be reduced and efficiency can be improved. Furthermore, since the fertilizer application and drug application work at the time of transplantation, etc., which will be performed later, can be released or the amount of work can be reduced, the efficiency of the whole agricultural work can be improved.

By arranging the fertilizer application hoppers in an appropriate order, it is possible to prevent the occurrence of problems such as per seed fertilizer, and by arranging the application hoppers in an appropriate order, the chemicals can be placed in an appropriate position in the pot portion. Can be administered to Furthermore, even for a very small and lightweight medicine that has a large amount of waste due to scattering, by providing a shield plate on the dispensing hopper, the scattered medicine is guided again to the dispensing roll, without wasting the medicine. A suitable amount can be automatically applied to the pot. In addition, the growth of the seedlings can be further stabilized by providing an appropriate amount of the applied drug.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a seeding machine according to an embodiment of the present invention.

FIG. 2 is a schematic view showing a configuration of a drug application hopper.

FIG. 3 is an overall perspective view of a conventional seeder.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 seeding machine 13 fertilizer hopper 14 floor soil hopper 15 seeding hopper 16 chemical dispensing hopper 17 soil covering hopper 20 hopper part 20 b shutter plate 21 chemical dispensing roll 22 rotating brush 24 shielding plate 24 d bending part 25 fixed brush 26 medicine receiving case K space Y chemical N seedling Box Nb pot

Claims (2)

[Claims] 1. A seeding machine comprising a floor soil hopper, a seeding hopper, and a covering soil hopper in order from an upstream side in a feed direction of a seedling box. A fertilizer hopper is provided upstream of the floor soil hopper, and the seeding hopper and A seeding machine with a chemical dispensing hopper installed between the soil covering hoppers so that fertilization and chemical dispensing can be performed simultaneously with seeding in the seedling box. 2. A dispensing machine provided with a seeding hopper and a dispensing hopper, wherein the dispensing hopper has a rotating brush and a dispensing roll opposed to each other below a partition plate of the hopper with the dispensing roll facing downward. Forming a space for medicine circulation below the shielding plate by providing a shielding plate for closing the space between the partition plate and the rotating brush, and shielding the medicine wound up by the rotating brush in the space. A dispensing hopper for a seeding machine, which is configured to be guided downward by a plate.