JPH0122406Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is a dispensing box placed over the bottom of a hopper, which is rotated with a perforated plate attached to the slanted bottom plate, and the seeds are inserted into the cell holes of the perforated plate and fed. This relates to a brush that rubs the top surface of a perforated plate in a perforated seeding machine.

(b) Prior Art Conventionally, the technique of arranging a brush on the perforated plate in a perforated seeding machine has been known. For example, see Utility Model Publication No. 39-22717.

(c) Problems to be solved by the invention This invention provides a perforated plate that is inclined with respect to the horizontal, by providing an inlet on the upper surface of the lower part of the inclined perforated plate and providing a droplet on the lower surface of the upper part of the inclined perforated plate. Seeds that fall from the hopper onto the perforated plate are not filled from the top of the perforated plate to the hopper, but are placed loosely at an angle of repose on the inclined perforated plate to form a seed pool. Seeds flowing down at an angle of repose on the perforated plate are inserted into the cell holes of the plate to prevent the seeds from flowing down in an amount greater than the required amount, and to prevent the seeds from being crushed by the perforated plate. That's what I did.

In order to allow the seeds falling from the hopper to form an angle of repose on the perforated plate arranged at an angle, the brush is also placed at a position far from the inlet and diagonally along the slope of the perforated plate arranged at an angle. It is.

(d) Means for solving the problem The purpose of the present invention is as described above. Next, the configuration for achieving the purpose will be explained.

The perforated plate 22 is arranged obliquely with respect to the horizontal, and the perforated plate 2
A seed introduction port 15 from the hopper 1 is provided above the sloping bottom of 2, and a seed drop port 24 is provided on the lower surface of the sloping top.
The perforated plate 22 is rotated along the bottom plate 6 of the feeding box 3 tilted in the same direction, so that the cell holes 23 formed in the perforated plate 22 are connected to the lower part of the introduction port 15 and the drop port 24 of the bottom plate 6. The brush 27 is placed so as to pass through the upper part.
, on the rotational circumference of the perforated plate 22 from just before the drop port 24 to the front part of the inlet 15, on a chord drawn toward the drop port 24 side from the rotation center of the perforated plate 22, and the drop port 24 side is higher. The side of the inlet 15 is low and inclined along the upper surface of the perforated plate 22.

(E) Embodiment The purpose and structure of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

In FIGS. 1 and 2, 1 is a hopper into which seeds are placed, and the circumferential surface of the bottom is narrowed downward to open the bottom opening 2 fully.

3 is a seed dispensing box, which is placed diagonally over the bottom of the hopper 1, with a side plate 4 having a considerable depth made into a U-shaped cross section with a semi-cylindrical curved surface and a straight extending surface; A cover plate 5 is detachably attached to allow inspection of the inside.

6 is the bottom plate of the dispensing box 3, which is tilted at an angle of about 30 degrees with the front up (up to the right), and made into a shape that combines a semicircle and a rectangle, completely covering the bottom of the box, and several pieces in the center and periphery. Open the dirt removal hole 7..., attach the reinforcing plate 8 to the bottom of the semicircular part, fix it with screws, and then attach the bottom plate 6.
Attach the leg pieces 9, 9 that come out from the sowing machine to the frame of the seeding machine (not shown).

Several seeding machines are attached to a tool bar, and this tool bar is connected to the rear of a rotary machine attached to a tractor.

A semicircular inner sole 10 is provided at the bottom of the feeding box 3.
This midsole 10 is arranged parallel to the semicircular portion of the bottom plate 6 at a slight distance, and has a partition plate 11 integrally located beyond the diameter line of the semicircular portion. It is constructed so that it rises diagonally along the front side of the frame and then bends slightly.

The feeding box 3 holds the bottom of the hopper 1 with the curved part of the side plate 4 and the partition plate 11, and the partition plate and the front side of the hopper are tightened with bolts 12, and the feeding box 3 is connected to the hopper 1 in an oblique position. do.

Reference numeral 13 denotes a bearing provided on the bottom plate 6 of the dispensing box, and an operating shaft 14 inserted through the bearing is rotated from the ground drive wheel of the seeding machine via a bevel gear (both not shown).

Reference numeral 15 denotes a seed introduction port provided in the midsole 10, which is made by cutting out a fairly large semicircle from the lowest point of the midsole, that is, the center of the periphery of the semicircular surface. The seeding introduction port 1
5 opens above the inclined lower part of the perforated plate 22.

16 is a fan-shaped shutter for opening and closing the seed introduction port 15, which is placed on the inner sole 10 and pivoted at the center thereof;
The guide plate 17 provided on the periphery is made about twice the length of the shutter width and is placed along the curved surface of the feeding box 3, and the bolt 18 passed through the middle of the guide plate is passed through the long hole cut in the curved side. Screw together the nut 19, move the shutter 16 appropriately to fully open the seed introduction port 15,
Half open or closed.

Reference numeral 20 denotes a window hole made in the curved peripheral surface of the feeding box 3 directly below the inlet 15, and a transparent plate 21 is pasted thereon so that the inside can be seen through, and the remaining amount of seeds is taken out by removing this transparent plate.

22 is a slanted perforated plate 22 housed in the feeding box 3.
Then, it is made into a disk with a diameter that follows the curved side, and downwardly expanding cell holes 23 are bored at a certain pitch on the periphery to receive seeds, and the square hole in the center is fixed to the top end of the operating shaft 14 to form a feeding box. The ground drive wheel is rotated in the counterclockwise direction shown by arrow A (FIG. 2) with the ground drive wheel as the limit of motion.

Reference numeral 24 denotes a seed drop opening provided on the bottom plate 6 of the dispensing box.A large fan-shaped cutout is cut out in the opposite side of the introduction port 15, that is, in the center of the highest point of the bottom plate, and a funnel 25 is installed on the underside of the bottom plate 6 toward the drop opening. Install.

That is, the drop opening 24 is opened at the lower surface of the inclined upper part of the perforated plate 22.

Reference numeral 26 denotes a control piece made of a flexible material, which is made to a size that almost closes the inlet 15 and is housed under it, and is attached to the lower surface of the inner sole 10 at the rear side in the direction of rotation of the perforated plate 22, so that it can be held at an angle. It extends toward the rotation direction side of the perforated plate 22 and approaches its upper surface.

One embodiment of the present invention is such a perforated plate seeding machine, in which a long and thin brush 27 attached to the upper surface of the perforated plate 22 is dropped from the front part of the seed introduction port 15 as shown in FIGS. 1 and 2. The perforated plate 2 is drawn toward the front of the opening 24 and toward the drop opening 24 side of the center of rotation of the perforated plate 22.
It is placed on the chord of the outer circumferential circle of 2.

This brush is attached to a suspension plate 28 extending obliquely to the partition plate 11, and the bent piece 29 and the partition plate are tightened with bolts 12 to hold the brush 27 in a predetermined position.

(F) Function of the invention An example of the perforated seeding machine according to the invention has the above-mentioned configuration, and the seeds in the hopper exit the bottom opening 2 and accumulate on the upper surface of the midsole 10. It passes through the introduction port 15 opened at the lowest point, slides on the control piece 26, rests on the left end of the perforated plate 22, and enters the cell hole 23.

Here, the perforated plate 22 with cell holes 23 arranged in a row is for wheat and barley, and five to six seeds enter each cell hole.
Perforated plates for soybeans and corn have two rows of cell holes and one seed is placed in each cell hole.

As the seeding machine advances, the perforated plate 22 rotates in the direction of arrow A, carrying the seeds on the upper surface and the seeds that have entered the cell hole 23 to the right, and when the cell hole faces the drop port 24, the seeds fall into it. It enters the funnel 25 and is discharged to the ground via a conduit (not shown).

One embodiment of the present invention has the above configuration, and when the perforated plate 22 rotates, the seeds placed on the upper surface of the perforated plate 22 are transferred to the brush 2.
Only a certain amount of seeds that have been scraped off by the brush 7 and entered the cell hole 23 pass through the brush, and when the cell hole moves toward the drop port 24, a certain amount of seeds fall into it.

(g) Effects of the invention The structure and operation of the invention are as described above, and it produces the following effects.

First, in a perforated plate that is inclined with respect to the horizontal, an inlet is provided on the upper surface of the lower part of the inclined perforated plate, and a drop opening is provided on the lower surface of the inclined upper part, so that the seeds that fall from the hopper onto the perforated plate are removed. Instead of filling the hopper completely from the top of the perforated plate to the inside, the seeds can be placed loosely on the slanted perforated plate at an angle of repose, so that the seeds in the hopper are filled onto the perforated plate 22. Since the seeds do not enter in a crushed state, there is less damage to the seeds.

Secondly, since the seeds that are flowing down slowly at the angle of repose on the perforated plate are inserted into the cell holes of the perforated plate, the seeds do not flow down more than the necessary amount, and the perforated plate 2 There is no possibility that the seeds will be crushed between the bottom plate 6 and the bottom plate 6.

Thirdly, by arranging the brush 27 closer to the drop port 24 than the center of rotation of the perforated plate 22, it is possible to increase the area where the seeds falling from the introduction port 15 stay at their angle of repose.

Fourth, the brush 27 is placed on the outer circumference of the perforated plate 22 on a string drawn from in front of the drop port 24 to in front of the introduction port 15 and toward the drop port 24 side of the rotation center of the perforated plate 22. Therefore, the drop opening side is at a fairly high position, and there are few seeds that sit on the top of the perforated plate 22 that rise up to this point. The amount dropped is small.

Therefore, the resistance of the seeds to scraping by the brush 27 is reduced, the rotation of the perforated plate becomes easier, and the wear of the brush is also reduced.

That is, by arranging the brush 27 at a position immediately in front of the drop opening 24, while the perforated plate 22 tilted to the position in front of the brush 27 rotates, the overflowing seeds in the cell holes 23 are automatically removed. The scraping force by the brush 27 may be weak because it rolls over the slope of the perforated plate 22 and returns to the inlet 15. Therefore, the rotation of the perforated plate 22 becomes easier.

Fifth, since the other end of the brush 27 is placed in front of the inlet 15, the amount of seeds in the front part of the inlet 15, where it is difficult to be taken into the cell holes 23, can be reduced. This also reduces the amount of seeds remaining after use.

Sixth, when changing the direction of travel of the tractor, the rotary machine and the seeding machine connected to it are lifted up. In this case, the left end of the bottom plate 6 of the feeding box is higher, so that the seeds that are placed on the perforated plate fall into the opening 24. However, since the brush 27 is placed on the string that connects the outer periphery of the perforated plate 22, it stops the seeds from flowing in and prevents the seeds from entering the drop opening 24 and being sown in vain. be.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional view of a dispensing box equipped with the embodiment, and FIG. 2 is a sectional view taken along line BB in FIG. 1. 1... Feeding box, 6... Bottom plate, 15... Seed introduction port, 22... Perforated plate, 23... Cell hole, 24... Falling port, 27... Brush.

Claims (1)

[Scope of utility model registration request] The perforated plate 22 is arranged obliquely with respect to the horizontal, and the perforated plate 2
A seed introduction port 15 from the hopper 1 is provided above the sloping bottom of 2, and a seed drop port 24 is provided on the lower surface of the sloping top.
The perforated plate 22 is rotated along the bottom plate 6 of the feeding box 3 tilted in the same direction, and the cell holes 23 bored in the perforated plate 22 are connected to the lower part of the introduction port 15 and the drop port 24 of the bottom plate 6. The brush 27 is placed so as to pass through the upper part.
, on the rotational circumference of the perforated plate 22 from just before the drop port 24 to the front part of the introduction port 15, on a chord drawn toward the drop port 24 side from the rotation center of the perforated plate 22, and the drop port 24 side is higher. A brush device for a perforated seed seeding machine characterized in that the introduction port 15 side is low and is arranged at an angle along the upper surface of the perforated tray 22.