JPH0340102Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention uses a powder delivery roll having a powder storage recess formed on its outer periphery, with a powder receiving position on the upper side and a powder receiving position on the lower side. A powder scraping brush, which is rotatably provided so as to move the concave portion between the powder and granular material receiving position and the granular material receiving position and the powder and granular material receiving position, is rotatably provided and acts in contact with the outer periphery of the feed roll. The present invention relates to a granular material feeding device provided to act on the outer circumference of a roll located between a granular material discharge position and a granular material discharging position.

[Conventional technology]

Conventionally, in such a powder and granular material feeding device,
To construct a powder scraping brush, a large number of hair-like bodies are implanted in parallel positions with each other.

[Problem that the invention attempts to solve]

According to the conventional structure, there is a disadvantage that powder particles easily enter the brush through the gap formed between the tips of the hair-like bodies, and there is room for improvement.

Specifically, when powder or granules enter the inside of the brush, the tips of the bristles become wide open and the elastic deformation action of the brush decreases, making it difficult to scrape off the powder or granules. There were disadvantages in that the brushes could not be moved through the brush and the brushes were worn out prematurely. In particular, when the granular material is a water-soluble fertilizer, there is a risk that the granular material becomes moist due to moisture, and when it dries and solidifies again, it may harden the brush. Therefore, the above-mentioned disadvantage becomes even more noticeable.

Incidentally, it is conceivable to avoid the above-mentioned inconvenience by planting a large number of hair-like bodies closely together without creating gaps, but this is disadvantageous in terms of manufacturing and cost, and is difficult to put into practical use.

The present invention has been developed in view of the above-mentioned circumstances, and its purpose is to prevent powder particles from entering the interior of the brush by simple modification.

[Means for solving problems]

The characteristic configuration of the present invention is that the scraping brush is constructed by arranging hair-like bodies along the circumferential direction of the roll when viewed in the direction of the rotational axis of the delivery roll, the width becoming narrower toward the tip end. Its functions and effects are as follows.

[Effect]

In other words, when viewed in the direction of the rotation axis of the delivery roll,
The hair-like bodies arranged along the circumferential direction of the roll are implanted in such a manner that the distance between the hair-like bodies becomes narrower toward the tip end, thereby minimizing the gap between the ends of the hair-like bodies. It is possible to suppress particles from entering through the gaps as much as possible.

[Effect of idea]

Therefore, by simply modifying the hair-like bodies of the powder scraping brush so that the width becomes narrower toward the tip, it is possible to prevent the powder from entering between the hair-like bodies. As a result, a powder and granule material feeding device has been obtained which allows the scraping brush to perform its function satisfactorily over a long period of time and can properly feed the powder and granule material.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in FIGS. 4 to 6, the powder and granular material dispensing device installed in the seedling planting device A of the riding-type rice transplanter includes a discharge outlet formed on the lower side of the granular material storage tank T. Attach the cylindrical feeding case 1 to the cylindrical part,
A powder delivery roll 4, which has a pair of powder storage recesses 4a and 4b formed on its outer periphery, is integrally rotated by a drive rotation shaft 3 having a hexagonal cross section installed directly below the powder discharge port 2. A pair of powder scraping brushes 5 are attached to the case 1 so as to be freely fitted on the outside and to come into contact with the outer peripheral portion of the feed roll 4.

A pipe-shaped frame 8 extending laterally from a support fitting 7 of a float 6, which is one of the constituent members of the seedling planting device A, is connected to the case 1 through a hose 9, and is connected to the body of the seedling planting device A. A groove making device 11 is attached via a bracket 12 to form a groove a for supplying powder and granular material at a position corresponding to the lateral side of the seedling planting claw 10 as the seedlings advance, and on the front side of the groove making device 11, A plate body 13 that pushes and guides debris such as straw waste and grass located in front of the plate body 13 below the groove cutting device 11,
The float 6 is integrally connected to the bottom surface of the soil leveling portion of the float 6, and the granular material such as granular fertilizer or seeds fed out from the recess 4a or 4b of the feeding roll 4 is transferred to the above-mentioned. It is configured to flow down into the groove m.

Incidentally, after the powder and granular material is supplied to the bracket 12, the groove a
A mud pressing plate 14 for backfilling is pivotally supported to be vertically movable,
Spring 1 that urges this mud pressing plate 14 downward
5 is set.

Next, the transmission structure of the feed roll 4 will be explained.

Passive arms 16 externally fitted and fixed to the central portions of the drive rotation shaft 3 in the longitudinal direction and swing arms 17A of a planting mechanism 17 for circulating the seedling planting claws 10 are linked by a rod 18. In conjunction with the planting operation of this planting mechanism 17, the feeding roll 4
is configured to be rotated reciprocally so that the recess 4a or 4b of the feed roll 4 is moved between an upper particulate material receiving position and a lower particulate material discharging position. Further, a powder scraping brush 5 is arranged so as to perform a powder scraping action on the outer peripheral portion of the roll located between the powder receiving position and the powder discharging position. be.

As shown in FIGS. 1 to 3, the scraping brush 5 includes a plurality of bundled hairs 5a.
5 pieces in the direction of the roller rotation axis and 2 pieces in the circumferential direction of the roller
Plant them on the brush mount 19 in a lined up state,
and a bundle-like hair-like body 5b shorter than the hair-like body 5a.
Four of them are implanted between the long hair-like bodies 5a.
Then, when viewed in the direction of the roller rotation axis, the planting posture of the bundled hair-like body 5a is tilted so that the long hair-like body 5a becomes narrower toward the tip end, so that the granular material becomes the hair-like body. It is designed to prevent the tip from entering the brush 5 from the tip. Incidentally, the tip of each bundle-like hair-like body 5a is designed to have a long shape in the direction of the roller rotation axis.

The hair bundles 5a and 5b are composed of one thick hair a forming the center thereof and a plurality of thin hairs b covering the thick hair a.

As shown in FIG. 4, each pair of recesses 4
a, 4b are formed with different shapes and depths for fertilizer and seeds, respectively, and the fertilizer recesses 4a, 4b and the seed recesses 4b, 4b are
It is configured to be selectively usable by reversing the roll 4 with respect to case 1.

As shown in FIG. 6, a cylindrical operation shaft 20, which is rotatably held and locked to the end of the feed roll 4, is fitted onto the drive rotation shaft 3 so as to be relatively rotatable. 20, the feed roll 4
A cylindrical body 21 equipped with a protrusion 21a for adjusting the amount of powder and granular material accepted that is movably engaged in the direction of the rotation axis is screwed into the recess 4a, and then the rotation operation of the operation shaft 20 is performed. The amount of powder and granular material delivered can be adjusted by the relative movement of the delivery roll 4 and the cylindrical body 21 toward and away from each other.

[Another example]

The feeding device of the present invention can be used in a variety of ways, such as by being attached to a rice transplanter, or by being attached to a tractor to form a specialized fertilization machine.

In the embodiment described above, the feed roll 4 is rotated back and forth, but it may be rotated only in one direction.

To construct the scraping brush 5, in the embodiment, a case where bundled hair-like bodies 5a are implanted is illustrated, but as shown in FIG. 7, a large number of hair-like bodies 5a are implanted at appropriate intervals. The implantation form of the hair-like body 5a can be changed in various ways, such as.

[Brief explanation of drawings]

The drawings show an embodiment of the powder and granular material feeding device according to the present invention, in which FIG. 1 is a side view of the powder scraping brush, FIG. 2 is a plan view of the powder and granular material scraping brush, and FIG. 3 is a powder and granular material scraping brush. A front view of the granule scraping brush, Fig. 4 is a vertical cross-sectional side view of the main parts of the granular material feeding device, Fig. 5 is a side view of the rear of the riding rice transplanter, and Fig. 6 is a main part of the granular material feeding device. FIG. FIG. 7 is a side view showing another embodiment of the powder scraping brush. 4...Powder delivery roll, 4a, 4b...Powder storage recess, 5...Powder scraping brush, 5a
...hairy body.

Claims (1)

[Scope of utility model registration request] The powder delivery roll 4, which has powder storage recesses 4a and 4b formed on its outer circumference, is inserted into the recesses 4a and 4b between the upper powder receiving position and the lower powder discharging position. A powder scraping brush 5, which is rotatably provided and contacts the outer periphery of the feed roll 4, is provided between the powder receiving position and the powder discharging position. The device for feeding out powder and granular material is provided to act on the outer periphery of the roll, and when the scraping brush 5 is configured, when viewed in the direction of the rotation axis of the feeding roll 4,
A powder feeding device in which hair-like bodies 5a are arranged along the circumferential direction of the roll and are implanted in such a manner that the width becomes narrower toward the tip end.