KR20010082675A - Scatering appartus of granular materials for seeding machine - Google Patents

Abstract

PURPOSE: To reduce the physical load on an agricultural work by applying an agrochemical in the process of a seeding work with a seeder to simplify the applying work, when the agrochemical to be applied on the seeding is used. CONSTITUTION: This granular substance-applying device for a seeder, is characterized by comprising a receiving case 10 which is used for receiving an agrochemical and disposed above a seedling-raising box C during being carried, and a tubular nozzle portion 20 communicating with the receiving case 10, wherein the nozzle portion 20 is disposed below the receiving case 10 and above the seedling-raising box C during being carried, and an outlet for flowing out the agrochemical flowed down from the receiving case 10 by the gravity is disposed on the lower side corresponding to the seedling-raising box C.

Description

Granular material spreading device for planters {SCATERING APPARTUS OF GRANULAR MATERIALS FOR SEEDING MACHINE}

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a granulator spreading device for planters, and more particularly to a granulator spreading device for planting rice planting and pot cultivation of vegetables.

In rice farming, seeding from mock germination to munnon is generally performed in the following order. First, sprinkle rice seed in the box where the mother board is installed and germinate, and grow until it reaches a certain size. The box used here is called a seedling box and is made according to a predetermined standard.

Next, the seedlings grown to a certain size in the seedling box are seeded in the main answer (plowed rice paddies). The planting work is now almost mechanized and made with rice transplanters, but the seedling box is made on the premise of raising the rice transplanters.

In recent years, sowing work on seedling boxes has been carried out by dedicated seeders. The seeding machine performs top soil, fertilization, watering, sowing, and covering the seedling box in the process of conveying the seedling box, so that the seedling box is automatically seeded. It is becoming an indispensable entity in order to simplify the work of aging.

While the seeding machine has been widely distributed, various improvements have been made to the pesticides used for rice farming, and the spreading time has been developed to be distributed at the time of seeding for seedling boxes instead of the conventional method at the time of seeding or after seeding. It is becoming. This is expected to be a breakthrough technique for simplifying the spreading operation, since the conventional agricultural chemicals need to be spread over a very small container such as a seedling box, in order to require the spreading work according to the broad answer.

However, in the case of dispersing pesticides at the time of seeding as described above, the pesticides are scattered during the seeding work by the seeding machine or in the seedling box which has been sown. Throw it away.

In addition, it is very difficult to uniformly distribute pesticides by an appropriate amount in manual work, and there is a problem in that sufficient effects are not obtained because the amount of dispersion is insufficient or large.

The present invention is to solve the above problems of the prior art, in the case of spraying the pesticide during the seeding operation process by the seeding machine, in the case of using the spraying pesticides during sowing, by simplifying the spraying operation, the physical of the agricultural work It aims to reduce the burden of phosphorus and to distribute the pesticides accurately and uniformly evenly to the target spreading area by a predetermined amount to realize waste-free spreading work.

As means for solving the above problems, a granular material spreading device for a seeding machine having the following structure is adopted. That is, the granular material spreading device for seeders according to claim 1 is installed in a seeding machine which puts soil or seeding on the tray while conveying the tray for the seeding machine, and the granulator for seeding machine which spreads granular materials such as pesticides on the tray. In water spreader,

An accommodating portion arranged above the tray in the conveying process and accommodating the granular material, and a tubular nozzle portion communicating with the accommodating portion, wherein the nozzle portion is located below the accommodating portion or in the conveying process. It is arrange | positioned at the upper side, The lower part which opposes the said tray is characterized by the outlet hole which flows out the granular material sent from the said accommodating part to the outside, It is characterized by the above-mentioned.

In the granulator spreading device for this planting machine, when a nozzle unit is placed on the upper side of the tray in the conveying process by the seeding machine, and when a granular material, for example, pesticide, is put in the storage unit, the granular material flows into the nozzle unit and flows out. It spills over the hole and falls on the tray. As a result, the spraying of the pesticide to the tray is automatically performed at the time of seeding, so that the spreading operation can be simplified. In addition, scatterable granular materials include not only pesticides but also fertilizers and seeds.

The granular material spreading device for planters according to claim 2 is characterized in that the accommodating portion and the nozzle portion are supported by a self-supporting frame in the granular material spreading device for planters according to claim 1.

In this seeding machine granular material spreading apparatus, by supporting the storing portion and the nozzle portion with a self-supporting frame, it can be used for any type of seeding machine regardless of the type or structure, and high versatility can be obtained.

The granular material spreading device for planters according to claim 3 is characterized in that the accommodating part and the nozzle unit are mounted to the seeding device in the granular material spreading device for planters according to claim 1.

In this seeding machine granular material spreading device, it is not necessary to secure an installation space other than the seeding machine by mounting the storage part and the nozzle part in the seeding machine.

The granular material spreading device for seeders according to claim 4 is a granular material spreading device for seeders according to claim 1, 2 or 3, characterized in that a plurality of discharge holes are provided in the longitudinal direction of the nozzle unit.

In this seeding machine spreading device, a plurality of outflow holes are provided in the longitudinal direction of the nozzle section so as to be provided in a plurality, so that the granular materials can be spread by giving a width in the longitudinal direction of the nozzle section. Thus, if the nozzle portion is disposed in a direction orthogonal to the traveling direction of the tray in the conveying process, it is also possible to spread pesticides on the entire tray while the tray passes through the lower portion of the tray.

The granular material spreading device for seeders according to claim 5 is the granular material spreading device for seeders according to claim 4, characterized in that the nozzle portion is kept in an inclined state with the front end lowered.

In this seeding machine spreading device, by holding the nozzle part in an inclined state, the granular material flowing out of the housing part is separated evenly in the longitudinal direction of the nozzle part and evenly flows out from the plurality of outflow holes.

The granular material spreading device for planters according to claim 6 is characterized in that, in the granular material spreading device for seeders according to claim 1, a diffusion unit for receiving the particulate matter flowing out of the outflow hole and diffusing it is provided.

In this type of seed dispersing device for seeding machines, the granular material flowing out of the outflow hole diffuses when passing through the diffusion portion and falls on the tray, so that the nonuniformity of the granular material for each outflow hole is improved.

The granular material spreading device for planters according to claim 7 is characterized in that, in the granular material spreading device for planters according to claim 1, an outflow amount adjusting mechanism for adjusting the amount of outflow of the granular material from the outflow hole is provided.

In the granulator spreading device for this seedling machine, by providing the outflow amount adjusting mechanism, it is possible to adjust the outflow amount of the granular material in accordance with the type and the spray concentration of the granular material.

The granular material spreading device for a seeding machine according to claim 8 is the granular material spreading device for the seeding device according to claim 7, wherein the flow rate adjusting mechanism is disposed inside the nozzle part and is supported to be movable along the lower part. And a control unit for restricting exposure of the outflow hole to change the opening area, and an operation unit for moving the control unit to stop at a desired position.

In this type of seed dispersing device for planters, the control unit moves by operating the operation unit to change the opening area of the outflow hole. Thereby, it is possible to adjust the amount of outflow of particulate matter.

The seed spreader for seeders according to claim 9 is a seed spreader for seeders according to claim 1, which detects the passage of the tray and opens and closes the outflow hole when the tray passes below the nozzle unit. And a nozzle opening and closing mechanism.

In this seeding machine granular material spreading device, by installing the nozzle opening and closing mechanism, it is possible to spread the granular material only when necessary.

The granular material spreading device for planters according to claim 10 is the granular material spreading device for planters according to claim 9, wherein the nozzle opening and closing mechanism is supported so as to be movable along at least a lower side of the nozzle unit, and the outflow is caused by the movement. And an opening and closing portion for exposing or covering the hole, a detecting portion for detecting the tray in the conveying process, and a driving portion for moving the opening and closing portion based on the detection result of the detecting portion.

In this seeding machine spreading device, at first, the outlet hole is covered and closed by the opening and closing part. When the detection part detects the tray in the conveying process, the driving part moves the opening and closing part to expose the outflow hole based on the detection result. Since it is open, it is possible to spread the granular material only when necessary. Therefore, if the tray is detected below the nozzle section and the detector is arranged so as not to detect the tray after passing through the nozzle section, it is possible to disperse the granules without waste on the tray.

The granular material spreading device for seeders according to claim 11 is characterized in that an excitation mechanism for applying excitation to the nozzle unit is provided in the granular material spreading device for seeders according to claim 1.

In this seeding machine spreading device, it is possible to prevent the particulate matter from clogging in the nozzle part by providing a mechanism having the nozzle part. In addition, there is also a motion for promoting the diffusion effect by vibrating the diffusion portion mounted on the nozzle portion.

1 is a view showing an embodiment of the present invention, a perspective view showing the overall structure of the pesticide spreading apparatus to which the present invention is applied.

FIG. 2 is a cross-sectional view illustrating a method of operating a structure of a pesticide discharge control mechanism installed in the pesticide spreading apparatus of FIG. 1.

3 is a cross-sectional view illustrating a method of operating a structure of a nozzle opening and closing mechanism installed in the agrochemical dispersing apparatus of FIG. 1.

Figure 4 is a side view showing the structure and operation method of the on / off sensor constituting the nozzle opening and closing mechanism.

5 is a schematic view showing a method of installing a pesticide spreading device for a planter.

<Description of the symbols for the main parts of the drawings>

10: storage case (storage part) 20: nozzle part

21: outflow hole 22: reticular portion (diffusion portion)

30: Outflow control mechanism 31: Inner cylinder (regulator)

32: operation section 33: distribution hole

40: nozzle opening and closing mechanism 41: shielding plate (opening and closing part)

42: on / off sensor (detection part) 43: slide motor (drive part)

46: vibrator (vibration mechanism) 50: frame

Hereinafter, an embodiment according to the present invention will be described with reference to FIGS. 1 to 5.

In this embodiment, a pesticide spraying device for a seeding machine to which the granular matter diffusion device for a seeding machine according to the present invention is applied. The agrochemical dispersing apparatus shown in the figure includes a storage case (storage unit) 10 for storing granular pesticides, a nozzle unit 20 connected to the storage case 10 to receive a supply of pesticide, and a storage case 10. And a free-standing frame 50 for fixing the nozzle unit 20.

The storage case 10 is a plastic molded shape, which is disposed above the seedling box (tray) conveying surface of the planter and is fixed to the frame 50. The upper part of the storage case 10 is inclined so as to descend toward the connection portion with the nozzle unit 20.

The nozzle part 20 is a straight cross section of a cross section, and is connected to the connection part of the lower part of the storage case 10 via the corrugated hose 13 made of rubber, and is conveyed below the storage case 10 or the seedling box conveyance of a planter. It is arrange | positioned above the surface, and is supported by the subframe 51 extended laterally from the frame 50 through the belt 52. Moreover, the nozzle part 20 is maintained in the state which inclined at the predetermined angle with respect to the horizontal seedling box conveyance surface by lowering the sealed front end.

In the lower part of the nozzle part 20, the outflow hole 21 which flows out the pesticide which flows from the storage case 10 by gravity out of the nozzle part 20 is equally spaced in the longitudinal direction of the nozzle part 20. Plurally arranged is provided. The nozzle part 20 is supported by the network part (diffusion part) 22 which receives the pesticide flowing out from the outflow hole 21 through the stay 23 by the nozzle part 20. In addition, a vinyl scattering curtain 24 is provided to prevent the nozzle portion 20 from being wetted during watering and to prevent excessive scattering of pesticides.

The nozzle portion 20 is provided with an outflow amount adjusting mechanism 30 for adjusting the amount of pesticide outflow from each outflow hole 21. The outflow amount adjusting mechanism 30 is fitted to the inside of the nozzle unit 20, and is provided with an inner cylinder (regulator) 31 supported to be movable in the longitudinal direction, and an operation unit 32 for moving the inner cylinder 31. Equipped with.

The inner cylinder 31 is provided with a plurality of distribution holes 33 in correspondence with the outflow holes 21. The inner cylinder 31 is moved to widen or narrow the overlap between the outflow holes 21 and the distribution holes 33. By changing the opening area of the outflow hole 21, the outflow amount of the pesticide is adjusted.

The operation part 32 has the female screw part 34 formed in the front end surface by which the nozzle part 20 was sealed, and the front end was connected to the inner cylinder 31 so that it might be clamped by this female screw part 34 and may not prevent rotation. It consists of the male screw part 35, and the male screw part 35 rotates the handle 36 provided in the base end in either direction of normal and forward, and moves the inner cylinder 31 in the nozzle part 31 in the longitudinal direction, and The overlap between the outflow hole 21 and the distribution hole 33 is changed.

In addition, the pesticide spreading device is provided with a nozzle opening / closing mechanism 40 which detects the passage of the seedling box when it passes below the nozzle unit 20 and opens and closes the outflow hole 21. The nozzle opening / closing mechanism 40 is movably supported and detects a shielding plate (opening / closing part) 41 which exposes or covers the outflow hole 21 in accordance with the movement thereof, and detects a seedling box in the conveying process. The on / off sensor (detection part) 42 and the slide motor (drive part) 43 which move the shielding plate 41 based on the detection result of the on / off sensor 42 are provided.

The shielding plate 41 is shaped like a trough of a cross-section arc that coincides with the lower portion of the nozzle unit 20. The same number of openings 41a are formed in each of the outlet holes 21 formed in the nozzle unit 20 in the shielding plate 41, and each of the outlet holes 21 is exposed through these openings 41a. It is possible to spill.

In the shielding plate 41, two long holes which are long in the longitudinal direction are also formed apart from each other in the longitudinal direction, and the shielding plate 41 is disposed in the lower part of the nozzle part 20, and the nozzle part is formed through each of the long holes. The fixing pin is fixed to the lower side of the 20 so as to be movable between a predetermined range (corresponding to the length of the long hole) in the longitudinal direction along the lower side of the nozzle unit 20.

The on / off sensor 42 is supported by the stay 53 on the subframe 51 and is contacted with the side edge of the seedling box which is conveyed in one direction on the conveying surface. It is to detect the seedling box passing through.

A trowel-shaped support plate 45 is attached to the lower side of the on / off sensor 42. The support plate 45 is arranged in a direction orthogonal to the conveying direction of the seedling box, and the swing is freely supported by the stay 53. Even if the seedling box is slightly shifted and conveyed, the front end of the soil having a certain width is placed on the side edge of the seedling box. It touches and swings, and the rear end is made to switch the on / off sensor 42 to an on state. Moreover, the on / off sensor 42 is arrange | positioned in front of the nozzle part 20 in consideration of the time difference from the detection of a seedling box to a pesticide discharge.

The slide motor 43 is connected to the proximal end of the shielding plate 41 to the protruding slide shaft 43a and fixed to the proximal end of the nozzle unit 20, so that the on / off sensor 42 detects the seedling box. State), the slide shaft 43a is driven to move the shielding plate 41 to open the outlet hole 21, and if the on / off sensor 42 does not detect the seedling box (off state), the slide shaft 43a ) Is driven in the reverse direction to return the shielding plate 41 to close the outflow hole 21.

In addition, the pesticide spreading device is provided with a vibrator (vibration mechanism) 46 which applies excitation to the nozzle unit 20 to prevent pesticide clogging, and also vibrates the network 22 to promote the action as a sieve. The vibrator 46 has a structure which rotates the eccentric weight and vibrates itself, and is fixed to the base end of the nozzle unit 20 adjacent to the slide motor 43.

The nozzle opening / closing mechanism 40 and the vibrator 46 are operated by receiving electric power from a power source (not shown). In addition, the storage case 10 is provided with a main switch 47 for controlling power supply to the nozzle opening and closing mechanism 40 and the vibrator 46. In addition, a power source such as a household or a DC battery can be used for the power source.

Subsequently, the procedure for spraying the pesticide in the seeding operation process for the seedling box by the seeding machine using the pesticide spreading device configured as described above will be described.

First, the structure of the general seeding machine will be briefly explained. As shown in Fig. 5, the seeding machine conveys the belt conveyor B on the mount provided with the belt conveyor B for conveying the seedling box in one horizontal direction. The top soil injection device D1, the seeding device D2, and the cover soil injection device D3 are sequentially arranged along the direction. In addition, although illustration is abbreviate | omitted, a watering device may be provided. When the seedling box C is placed on the upstream side of the belt conveyor B, the soil, sowing and covering (in some cases, watering) are carried out on the seedling box C in the process of being conveyed to the downstream side. have.

In the seeding operation, it is necessary to first install a pesticide spreading device. Pesticide spreading timing may be different depending on the type of pesticide, such as after the top soil input, after sowing, and after the top soil input. Therefore, if the timing of the pesticide spread is after the top soil input, between the top soil input device (D1) and the seeding device (D2), After the seeding, the installation position of the agrochemical dispersing device is changed in accordance with each timing as if it is the latter of the seeding device D2 and the cover-introduction device D3, and after the cover has been added.

Hereinafter, the case where the pesticide dispersion timing is after sowing will be described. First, the nozzle unit 20 is placed between the seeding device D2 and the covering soil injection device D3, and an agrochemical dispersing device is installed. When the main switch is turned on after the pesticide is put into the storage case 10, the pesticide spreading device is started, and the vibrator 46 starts to vibrate.

Subsequently, when the seedling box C is placed on the upstream side of the belt conveyor B by operating the seedling machine, the top soil is first introduced into the seedling box C in the process of being transported to the downstream side, and rice seed is subsequently sown. (In some cases, watering may occur).

When the seedling seedling box C which has become sowing does not stop and advances below the nozzle part 20, the support plate 45 comes into contact with the side edge of the seedling box C and vibrates, and the on / off sensor 42 ) Detects the seedling box (C).

When the on / off sensor 42 detects the seedling box C, the slide motor 43 operates to move the shielding plate 41 to open the outflow hole 21, and from the open outflow hole 21, pesticide. It spills. The pesticide flowing out of the outlet hole 21 diffuses in the process of penetrating the reticular portion 22 and falls onto the seedling box C. The spread of pesticide continues while the seedling box C passes under the nozzle unit 20.

When the seedling box C passes under the nozzle part 20, the support plate 45 returns to the original position, and the on / off sensor 42 does not detect the seedling box C. As a result, the slide motor 43 operates in the opposite direction as before, the return plate 21 is closed by returning the shielding plate 41 to its original position, and the outflow of the pesticide is stopped.

The seedling box C, which has been sprayed with pesticides, continues without stopping, and the covering is put on the topsoil, thus completing all the processes. The pesticide spreading in the seeding process is performed as described above, but in practice, the nozzle unit 20 continuously spreads the pesticide spreading, since the installation is continued without leaving the gap of the seedling box C almost empty. When (C) is cut off on the way, the outflow of pesticide is stopped.

In addition, when adjusting the amount of pesticide dispersion, the knob 36 at the front end of the nozzle unit 20 is rotated to change the opening area of the outflow hole 21.

As described above, when the pesticide spreading device is used in the seeding operation process by the seeding machine, since the pesticide spreading for the seedling box C is automatically performed, the spreading work can be simplified. In addition, it is possible to spread the pesticide accurately and uniformly evenly on the seedling box C by a predetermined amount, thereby realizing a wasteless spreading operation.

The pesticide spreading device is used by inserting the tubular nozzle part 20 into a narrow space called a top soil filling device (D1) and the seeding device (D2) or between the seeding device (D2) and the cover soil injection device (D3). Since the frame 50 is self-supporting, it can be used also for the planters of all models of multiple makers, without touching the planter itself. Moreover, it is easy to handle for older farmers because of its simple operation.

In addition, since the structure is simple and the manufacturing cost is low, the present invention can be provided without imposing an excessive burden on the consumer.

In addition, although the pesticide spreading apparatus was demonstrated as an example in this Example, the granular material which can be spread | dispersed by the granular material spreading apparatus for planting machines which concerns on this invention contains not only an agricultural chemical but fertilizer, a seed, etc. are contained. Therefore, it is also possible to apply the granular material spreading device for planters according to the present invention as a fertilizer or seed spreading device.

In addition, in this embodiment, although the nozzle part 20 was made into the linear cross section of a cross section, you may use not only this but a cross section rectangular pipe. In this case, face the corners downwards.

In the present embodiment, the vibrator 46 is employed as a mechanism for eliminating the blockage of the pesticide and promoting the supply to the nozzle unit 20. However, instead of this, the pesticide is sequentially repeated from the proximal end of the nozzle unit 20 toward the front side. A mechanism may be employed (for example, a spiral member is rotated in the nozzle portion 20), a mechanism for sending air from the proximal end toward the front, or the like.

In the present embodiment, the network portion 22 such as a sieve is employed in the diffusion portion, but instead of this, a plate inclined sideways may be employed. In this case, the pesticide flowing out of the outflow hole 21 falls onto the seedling box while touching the plate and spreading.

In this embodiment, the housing 10 and the nozzle 20 are configured to support the self-supporting frame 50. However, the storage unit 10 and the nozzle 20 are attached to the planter by mounting the frame thereon. May be mounted, or the storage unit 10 and the nozzle unit 20 may be mounted on the planter, for example, by mounting the housing unit 10 and the nozzle unit 20 directly on the planter.

In addition, in the present embodiment, an example was applied to a seeding machine for making a seedling for use in rice farming, the granular material spreading device for a seeding machine according to the present invention is not limited to this, for example, can also be applied to vegetable pot cultivation work. Do.

As described above, according to the granular material spreading device for seeders according to the present invention according to the present invention, when the granular material is put in the storage part after arranging the nozzle part above the tray in the conveying process by the seeding machine, Since the pesticide spreading to the tray is made automatically, it is possible to easily spread the granular material in the seeding operation.

According to the granular material spreading device for a seeding machine according to claim 2, by supporting the storage portion and the nozzle portion with a self-supporting frame, it can be used for any type of seeding machine regardless of the type or structure, and high versatility can be obtained.

According to the granular material spreading device for a seeding machine according to claim 3, it is not necessary to secure an installation space other than the seeding machine by mounting the storage part and the nozzle part in the seeding machine, which helps to improve workability.

According to the granular material dispersing device for seed drills of Claim 4, when a nozzle part is arrange | positioned in the direction orthogonal to the advancing direction of the tray in a conveyance process by providing two or more outflow holes in the longitudinal direction of a nozzle part, a tray will make a nozzle Pesticides can be spread throughout the tray between the bottoms of the section.

According to the granular material spreading device for a seeding machine according to claim 5, by holding the nozzle portion in an inclined state, the granular material flowing out of the storage portion is allowed to flow out evenly from a plurality of outlet holes spaced apart in the longitudinal direction of the nozzle portion. The granular material can be uniformly dispersed throughout the tray.

According to the granular material spreading device for a seed drill according to claim 6, by installing the diffusion portion under the nozzle portion, the granular material flowing out from the outflow hole diffuses when passing through the diffusion portion and falls onto the tray. The nonuniformity can be improved, and the granular material can be more evenly dispersed throughout the tray.

According to the granular material spreading device for planters according to claim 7, the flow rate of the granular material can be adjusted in accordance with the type of granular material and the concentration of the dispersion by providing an outflow amount adjusting mechanism.

According to the granular material spreading device for a seeding machine according to claim 8, the amount of outflow can be easily adjusted by operating the operation unit, so that high operability can be obtained without distinguishing between a use situation and an operator to operate.

According to the granular material spreading device for planters according to claim 9, the granular material can be dispersed only when necessary by providing a nozzle opening and closing mechanism. By using this, it is possible to spread particulate matter only in a tray, and the spreading work can be efficiently carried out without waste.

According to the granular material spreading device for a seeding machine according to claim 10, by detecting the tray when it enters under the nozzle unit and arranging the detection unit so as not to detect when passing through the nozzle unit, the granular material can be efficiently distributed without waste to the tray. have.

According to the granular material spreading device for planters according to claim 11, it is possible to prevent the particulate matter from clogging in the nozzle part by providing a mechanism having the nozzle part.

In addition, there is also a movement for promoting the diffusion effect by vibrating the diffusion portion mounted on the nozzle portion. As a result, the granular material can be dispersed uniformly and stably.

Claims (11)

In the seeding device spreader for seeding equipment which is installed in the seeding machine which puts the soil for this tray and sowing while conveying the tray for a seeding machine, and spreads granular materials, such as pesticide, with respect to the said tray, It is provided with the accommodating part which is arrange | positioned above the said tray in a conveyance process, and accommodates the said granular material, and the tubular nozzle part which communicates with this accommodating part, The nozzle portion is disposed below the storing portion and above the tray in the conveying process, and a lower portion corresponding to the tray is provided with an outlet hole for outflowing the granular material sent from the storing portion to the outside. Granular material spreading device for a planter, characterized in that. The method according to claim 1, And the receiving portion and the nozzle portion are supported by a self-supporting frame. The method according to claim 1, And the receiving portion and the nozzle portion are mounted to the seeding machine. The method according to claim 1, 2 or 3, And a plurality of the outflow holes are provided in the longitudinal direction of the nozzle unit, and a plurality of the outflow holes are provided. The method according to claim 4, And the nozzle portion is kept inclined by lowering the front end. The method according to claim 1, A granulator spreading device for seeding, characterized in that a diffusion section for receiving the particulate matter flowing out of the outlet hole and diffusing it is provided. The method according to claim 1, A seed spreading device for seeders, characterized in that an outflow amount adjusting mechanism for adjusting the outflow amount of the granular material from the discharge hole is provided. The method according to claim 7, The outflow amount adjusting mechanism is disposed inside the nozzle portion and supported so as to be movable along the lower portion, and restricts exposure of the outflow hole according to the movement to change the opening area; A granulator spreading device for a planting machine, comprising: an operation unit for moving the control unit to stop at a desired position. The method according to claim 1, And a nozzle opening and closing mechanism for detecting the passage of the tray and opening and closing the outflow hole when the tray passes under the nozzle portion. The method according to claim 9, The nozzle opening and closing mechanism is supported so as to be movable along at least a lower side of the nozzle portion, and an opening and closing portion for exposing or covering the outflow hole according to the movement thereof; A detection unit for detecting the tray in the conveying process; And a driving unit for moving the opening and closing unit based on the detection result of the detection unit. The method according to claim 1, And an excitation mechanism for applying excitation to the nozzle portion.