JPH0130984Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an agricultural granulator, and particularly to a granular fertilizer or granular disinfectant granulator for use in seedling raising.

If we explain seedling raising in terms of rice cultivation, now more than 80% of rice cultivation is done by mechanical transplantation, and when it comes to rice cultivation, we have entered the age of mechanical planting.The rice transplanters used for mechanical planting are:
Unlike hand-planted seedling cultivation, a nursery box is used. The size of this nursery box is determined, for example, the external dimensions are 60cm long and 30cm wide, and the internal dimensions are 58cm high.
cm, width 28 cm, and depth approximately 3 cm. After a series of seeding operations such as sowing, covering with soil, and watering, the seedlings are kept at an appropriate temperature and humidity to ensure uniform germination. Therefore, they are placed side by side in a vinyl greenhouse. The method of fertilizing the seedling box is as follows:
It is not preferable to use the entire amount as base fertilizer, and most of the time it is used as additional fertilizer. In addition, since the seedling boxes are placed closely together, pesticides are sprayed against pathogens to prevent the spread of diseases.

The present invention also relates to an improvement of a granulator for dispersing granular fertilizer or granular disinfectant into general seedling boxes and the like.

[Conventional technology and its problems]

Traditionally, granular disinfectants and granular fertilizers have been sown by hand in most cases, as seedling boxes placed closely side by side in narrow plastic greenhouses are used for small and medium-sized seedlings. Some of them are shoulder-carrying or backpack-carrying, and have a hopper connected to the storage tank via a gripping pipe.
A granulator (see Japanese Utility Model Application Publication No. 180750/1983) is used, which has a dispersion plate with fan-shaped grooves in the opening of the hopper.
It is used in fields, and the seedling machine is used to disperse grains (for example,
When spraying a disinfectant (50g of powder per seedling box), the opening direction of the dispersion plate is different between the front and distant seedling boxes, so it is still difficult to spread the seeds between the same seedling boxes. Unevenness is inevitable.

Therefore, the present applicant uses a flexible hose provided at the tip of a gripping pipe that communicates with the storage tank and is attached with a bendable auxiliary arm. We proposed using an agricultural granulator with a hanging fan-shaped granulator with a built-in ejection roller to uniformly disperse granules into all of the seedling boxes placed closely together in a narrow plastic greenhouse ( Utsukai No. 62-7814).

However, when this proposal was tested under various conditions, especially with different shapes, sizes, and hardness of the granules, it was found that the motor used as the power source for driving the discharge roller was ultra-small in order to reduce weight. As a result, a new inconvenience has been discovered in that if particulate matter gets caught in the discharge roller so as to prevent its rotation, the discharge roller must be stopped.

[Means for solving problems]

The present invention has been devised to solve this problem, and the configuration of the present invention will be explained in detail with reference to embodiments shown in the accompanying drawings.

Fig. 1 is an overall perspective view of an embodiment of the present invention, Fig. 2 is a partially cutaway side view taken from arrow B in Fig. 1, and Fig. 3 is a partially cutaway side view of the embodiment of the present invention.
A sectional view taken from A to A in the figure, and FIG. 4 shows an enlarged view of the R section in FIG.

This example is a granulator used to disperse granular fertilizer or disinfectant (for example, small pieces of 2 mm in length) into a large number of rice seedling boxes arranged side by side. Although not shown in the drawings, 1 is of a type that can be carried on the shoulder or on the back, and the granules are put into the storage tank 1, and the granules are dispersed by holding a telescopic gripping pipe 2 in one hand. A flexible hose 4 is attached to the tip of the gripping pipe 2 via a collar 3.
A collar 5 is attached to the tip of the flexible hose 4.
A fan-shaped particle dispersion port 6 rotatably attached to the collar 5 is connected to the collar 5 via the collar 5. A pair of auxiliary arms 7 and 8 consisting of two members each having one end fixed to the collars 3 and 5 are attached, and these auxiliary arms 7 and 8 are rotatably supported with respect to each other at the other end, so that It is configured to be refractable. Although only one side of these auxiliary arms 7 and 8 is shown in FIG. 1, another of the same shape is attached to the opposite side of the drawing, forming a pair. Therefore,
The fan-shaped powder outlet 6 is suspended from the grip pipe 2 like a lantern by its weight.

The fan-shaped scattering port 6 is made entirely or on one side of a transparent material such as acrylic resin, and is formed into a mountain shape when viewed from arrow B in FIG. 1 (FIG. 2) and an inverted mountain shape when viewed from arrow C. Because of this shape, the granules can be evenly supplied to the elongated discharge roller section 9 attached to the lower end of the fan-shaped granulation port 6. That is, as shown in FIG. 3, the discharge roller 10 in the discharge roller section 9 has a diameter of, for example, 1.5 cm, and an axial length approximately equal to the width of the seedling box. , Therefore, the discharge roller 10 has a smaller diameter and is longer than the diameter of the gripping pipe 2 or the flexible hose 4 of 3.5 cm, so the fan-shaped particle dispersion port 6 is fan-shaped in the plane of arrow B. It is enlarged and has a narrowed shape in the C arrow view plane.

Next, the discharge roller section 9 has a structure as shown in FIG. 3. That is, a discharge roller 10 is built in at a position deviated by l from directly below the fan-shaped particle dispersion port 6, and the rear wall 11 in the front-rear direction of the particle dispersion port 6 is installed.
The partition plate 12 is branched and extended from the discharge roller 1.
The partition plate 12 is provided so as to cover the upper part of the discharge roller 10 in the 0-axis direction, and an opening 13 is formed at the lower edge of the partition plate 12 in a horizontal direction. The rear wall 11 and the front wall 11' facing the rear wall 11 extend to form skirt portions 14, 14, respectively.
Therefore, when the discharge roller 10 rotates in the direction of the arrow p in FIG.
Rather than flowing upward, the waste temporarily accumulates on the stepped portion 15 of the front wall 11', and is then scooped up in fixed amounts through the horizontal opening 13, forming the discharge roller 10 and the rear wall 11. It flows down and is discharged along the flow path 16. Note that the metal discharge roller 10 has long grooves 17 formed on its surface in order to regulate the amount of granules discharged and discharge them uniformly.

Here, in the agricultural granulator previously proposed by the present applicant, the discharge roller 10 is located at the stepped portion 1 of the front wall 11'.
Since the structure is such that the particulate matter accumulated on the surface of the step part 15 is scooped up in fixed quantities, depending on the shape and size of the particulate matter, it may get caught between the tip 20 of the step part 15 and the discharge roller 10. However, in this embodiment, in order to avoid this problem, the following measures have been taken to avoid this inconvenience.

That is, as shown in FIG. 4, which is an enlarged view of the R section in FIG.
A step extending member is arranged below the discharge roller 10 and in parallel with the discharge roller 10 . That is, the free roller 1
8 and the discharge roller 10 are placed very close to each other (approximately 0.5 mm) to prevent particles from falling from the gap, but there is a relatively large distance between the tip 20 of the stepped portion 15 and the discharge roller separated so that the particles can move freely between them. The free roller 18 is rotatably supported by a side wall 19 connecting the front and rear skirt portions 14, 14.

Therefore, the particulate matter accumulated in the fan-shaped particle dispersion port 6 is not scooped up by the discharge roller 10, and some of it is accumulated on the free roller 18 from between the tip 20 of the step part 15, and is The particles try to be caught between the discharge roller 10 and the free roller 18, but the free roller 18 is rotated in the direction of arrow q via the trapped particles due to the rotational force of the discharge roller 10, and the fan-shaped particles are With the addition of slight vibrations from the mouth 6,
The particles that are about to be bitten float up and fall along the skirt portion 14 on the right side in FIG. Therefore, the discharge roller 10 rotates smoothly without stopping.

The transmission mechanism of the discharge roller is shown in FIG. 2. That is, on the outer surface of the rear wall 11,
A commercially available simple small motor 21 is fixed, and a horizontally installed drive shaft 23 is connected to the motor 21 via a speed reduction mechanism 22. A universal joint 24 is interposed in the middle of the drive shaft 23. This allows the motor 21 and the speed reduction mechanism 22 to be connected to the rear wall 11.
When installing the side reduction mechanism (not shown) on the outer surface of the fan-shaped dispersion port 6,
If the mounting position on the drive shaft 23 is different from the position when the motor 21 is mounted, the system absorbs the error and actively induces vibration in the transmission path while the motor 21 is being driven. . The drive shaft 23 is made to protrude from the side wall 19 and drives the discharge roller 10 via a side reduction mechanism.

This embodiment has the configuration described above, so when using this granulator as a pest control machine, store granular disinfectant in tank 1, carry this pest control machine on your back, and use it inside a plastic greenhouse. to go into. Inside the plastic greenhouse, the disinfectant is uniformly sprayed on the left and right seedling boxes while passing through the center passage of the groups of seedling boxes arranged closely in 4 to 5 rows on one side.
The disinfectant stored in the fan-shaped dispersion port 6 is filled with it by gravity in advance. Then, the operator grasps the gripping pipe 2 with one hand and positions the fan-shaped spraying port 6 on a predetermined box among these seedling-raising boxes. The flexible hose 4 bends due to the weight of It is held and hung like a lantern. That is, for example, when placed above the seedling box near the central passage, the gripping pipe 2 is tilted greatly, but the fan-shaped scattering port 6 is suspended vertically, and the seedling box located farthest from the passage is When positioned upwardly, the operator's arms and gripping pipe 12
In order to extend as much as possible, the gripping pipe 2 is horizontal, but the fan-shaped powder outlet 6 is also hung vertically here. As described above, the angle of the gripping pipe 2 changes depending on the operator, the number of juxtaposed seedling boxes, and their positions, but the fan-shaped scattering port 6 in this embodiment is always vertical, so that the skirt Part 14, 14
The opening always faces downward. Therefore, when the motor 21 is turned on, the discharge roller 10 rotates, and a fixed amount of the disinfectant in the fan-shaped particle dispersion port 6 is forcibly discharged into a predetermined seedling box in the form of a blind. If the operator walks at a substantially constant speed in this condition, the disinfectant can be uniformly scattered over the entire surface of each seedling box. Also,
Normally, the longitudinal direction of the skirt portion 14 of the fan-shaped particle dispersion port 6 is positioned perpendicular to the direction in which the worker moves, but it is possible to position the skirt portion 14 in a direction parallel to the direction in which the worker moves. It is also possible to sprinkle the seeds on a seedling box in front of the worker.

In this embodiment, the rotation from the motor 21 is transmitted to the discharge roller 10 through a speed reduction mechanism 22 made up of a group of several gears, a universal joint 24, a drive shaft 23, and a side reduction mechanism made up of a group of several gears. As a result, these transmission mechanisms vibrate, and as a result, the fan-shaped granulation port 6 is slightly vibrated, and the disinfectant in the granulation port 6 does not cause bridging. Moreover, due to the smooth rotation of the discharge roller 10, the disinfectant is continuously flowed down and dispersed.

Although this example was explained using a rice seedling box,
The present invention is not limited to this, but can also be used for seedling pots and pots for growing vegetable seedlings.

Further, in this embodiment, the step extending member is explained as the free roller 18, but the present invention is not limited to this, and may be constructed with the swing plate 25 shown in FIGS. 5A and 5B.
That is, the rocking plate 25 has a curved surface 26 formed along the outer periphery of the discharge roller 10 with a slight gap in its central portion in the vertical direction, and a balance weight 27 protruding slightly downward in the vertical direction.
and a support hole 28 that supports the movable plate 25 above in the vertical direction. Therefore, the swing plate 25 is suspended with the support hole 28 as a fulcrum, and the swing plate The upper edge 29 of the roller 25 is always in contact with the outer surface of the discharge roller 10, and the balance is maintained so that particulate matter does not get caught between the discharge roller 10 and the swing plate 25. Therefore, the rotation of the discharge roller 10 is not prevented. In addition, 30
indicates a pin inserted into the support hole 28 and the side wall 19.

Since the present invention has been adopted with the above structure, it has the following effects.

[Effect of idea]

Since the fan-shaped scattering port is provided through a flexible hose with an auxiliary arm attached, the fan-shaped powder dispersion port is always suspended vertically no matter what angle the gripping pipe is held. Coupled with the quantitative discharge and particle scattering function, granules can be dispersed uniformly, and are not unnecessarily scattered to neighboring seedlings, so there is no double scattering. In particular, it is suitable for growing small seedlings in a greenhouse, where a large number of them are placed side by side, and for raising delicate seedlings.

In addition, the discharge roller is built in so as to be offset from the vertical center line of the fan-shaped particle dispersion port via the step and the step extension member, so if the rotation of the discharge roller is stopped, the dispersion can be stopped. It cuts well and prevents excessive falling of granules. In addition, while the stepped extending member prevents granular objects from falling, if the granular objects are caught, they will escape, so the ejecting roller will stop due to the catching between the ejecting roller and the stepped extending member. can be prevented and its rotation always occurs smoothly.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a partially cutaway side view taken in the direction of arrow B in Fig. 1, Fig. 3 is a sectional view taken from A to A in Fig. 1, and Fig. 4 is a FIG. 5, an enlarged view of the R section in the figure, shows another embodiment of FIG. 4. 1...Storage tank, 2...Gripping pipe, 4...
Flexible hose, 6... Fan-shaped particle dispersion port, 7, 8... Auxiliary arm, 10... Discharge roller, 15... Stepped section,
18...free roller, 25...swing plate.

Claims (1)

[Scope of utility model registration request] A particulate matter storage tank to be carried at hand, a gripping pipe communicating with the tank, a flexible hose provided at the tip of the pipe and attached with a bendable auxiliary arm, and the tip of the flexible hose. An agricultural granulator is an agricultural granulator comprising a fan-shaped particle dispersion port, which is provided with a power-driven discharge roller installed horizontally and built in near the opening of the fan-shaped particle dispersion port, and the discharge roller is placed above and below the fan-shaped particle dispersion port. It is built in a position offset in the front-rear direction from the direction center line via the step, and on the lower side of the step,
An agricultural granulator equipped with a stepped extension member that moves when granules are caught.