JPH0258893B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a rotating body for dispensing powder and granules, which is provided with a recess for receiving powder and granules on its outer periphery along the axis of rotation, and is positioned opposite to a discharge port of a powder storage tank. The present invention relates to an agricultural powder and granular material feeding device which is provided with a receiving amount adjusting protrusion that is provided in the concave groove and that engages in the rotary body so as to be freely adjustable in its movement in the axial direction of the rotating body.

Conventionally, in such a dispensing device, dispensing of the powder or granular material can be stopped by adjusting the projecting piece so that it engages with the entire inside of the concave groove and closing the discharge port. It is installed so that it can swing freely in a downward tilted position to allow residual powder to be taken out. There is the hassle of having to readjust the position of the protrusion relative to the groove to ensure the correct amount.
In addition, in order to support a large tank so that it can swing freely,
The tank support structure was complicated, and there was room for improvement.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to feed out powder and granular material in a state where it can be easily and quickly resumed by simple modification. The purpose is to make it possible to stop the process, and also to take out the residual powder from the tank with a simple structure that makes effective use of the structure for that purpose.

A characteristic configuration of the agricultural powder and granular material feeding device according to the present invention is that the rotary body and the protruding piece are supported so as to be integrally slidable in the axial direction of the rotary body, and the protruding piece and the protruding piece The present invention is configured to be switchable between a state in which the discharge port is closed and a state in which the rotating body and the protrusion are separated from the discharge port.

Next, the effects of the characteristic configuration of the present invention will be described.

In other words, the discharge port is closed by sliding the rotary body and the protruding piece together, and the feeding of the powder and granular material is stopped. Therefore, in order to restart the feeding of the powder and granular material, the rotary body and the protruding piece must be slid together. As long as the slide operation is performed to the original dispensing position, dispensing of the powder or granular material can be started immediately with the dispensing amount being the same as before dispensing, and the rotary body and protrusion are separated from the discharge port. By simply sliding the tank, the remaining powder inside the tank can be quickly taken out through the discharge port.

Therefore, by a simple modification to support the rotating body and the projecting piece so that they can be slid together, it is possible to stop the feeding in a state where the feeding of powder and granules can be restarted easily and quickly. This makes it possible to take out the residual powder and granular material, and as a result, it is possible to obtain an agricultural powder and granular material dispensing device that is excellent in terms of both use and manufacturing, and has great practical advantages. Ivy.

Embodiments of the present invention will be described below based on the drawings.

Figure 1 shows a powder fertilizer dispensing device for fertilization that is equipped on a riding rice transplanter.
A fertilizer storage tank 1 equipped with A is provided with a discharge port 2 opened at its lower part, and a plurality of concave grooves U for receiving powdered fertilizer along the direction of the rotation axis are arranged at appropriate intervals in the circumferential direction on the outer periphery. A rotary body 3 for feeding out fertilizer made of synthetic resin is positioned opposite to the tank discharge port 2, and externally fitted onto a drive rotary shaft 4 having a hexagonal cross section, and also serves as a rotary body storage case. A fertilizer granule feeding case M is attached to the tank 1.

A fertilizer release tool 6 having a boat-like shape in plan view also serves as a trencher to form a fertilizer release groove S on the side of the seedling planted by the planting claw 6 which is driven to circulate up and down.
is attached to the planting mud surface leveling float 7,
A pipe 8 is provided to guide and supply the fertilizer from the feeding case 4 to the discharge tool 6, so that fertilization can be carried out at the same time as planting.

However, reference numeral 9 in the figure is a rod-shaped body that is attached between the front end of the float and the discharge device 6 in a manner that bypasses the lower part of the float, and guides foreign matter such as straw waste to the lower side of the discharge device 6. It is something. Moreover, the tank 1
Two lines La and Lb of different colors (for example, red and yellow) are marked on the inner surface with an interval above and below, and extend all the way around the inner surface, and the lower line Lb is Displays that the remaining amount of fertilizer is enough to store the entire amount in one fertilizer bag (for example, 20 kg) in the tank, and the upper line La indicates that the remaining amount of fertilizer can be stored in one round trip around the field (for example, traveling 200 m). This indicates that the amount is sufficient. Furthermore, 1
0 and 10 are fertilizer scraping brushes that come into sliding contact with the outer surface of the rotating body 3.

As shown in FIGS. 2 to 5, the support cylinder 11A of the protrusion 11 for adjusting the amount of fertilizer received, which engages in the groove U so as to be movable in the direction of the rotation axis, is attached to the drive rotation shaft 4. A cylindrical rotary operation shaft 12 is externally fitted on the cylindrical rotary operation shaft 12 so as to be relatively rotationally operable, and the rotary operation shaft 12 is externally fitted and screwed together so that it can be moved in the axial direction of the rotating body as the shaft rotates. A large diameter member 13 for rotational operation is attached to the part protruding from M, so that the amount of fertilizer delivered can be adjusted.

An O-ring 14 that prevents the fertilizer from moving toward the rotating shaft is installed between the boss portion of the rotating body 3 and the end of the rotating operating shaft opposite thereto. 12, while allowing relative rotation between the rotary body 3 and the rotary operation shaft 12 during the feeding operation, the rotary body 3 and the rotary operation shaft 12 are clamped in a state of frictional connection so that they can rotate freely as a unit, and are made of a metal material. The O-ring 14, which is used to prevent the rotary shaft 4 from corroding due to adhesion of fertilizer, is effectively used as a component for adjusting the amount of feed.

An annular stopper 15 that prevents the rotary operation shaft 12 from separating from the rotary body 3 is attached to the rotary body 3, and the rotary body 3 and the protrusion 11 are connected so as to be slidable together, and the large diameter member By supporting the rotating body 13 and sliding the rotating body 3 and the protruding piece 11 together, as shown in FIG. It is configured so that it can be switched between a closed state and a state in which the rotating body 3 and protruding piece 11 are separated from the discharge port 2.

In short, stopping fertilizer delivery, and
The residual fertilizer in the tank can be easily and quickly taken out by sliding the projecting piece 11 and the rotating body 3 together.

However, reference numeral 16 in the figure is a tongue piece made of a leaf spring that locks and holds the large diameter member 13 in the extended position, and an operating piece 16A for engaging and disengaging the large diameter member 13 while elastically deforming it. It is integrally formed.

As shown in FIG. 1, in order to drive the drive rotation shaft 4, a swing link 18 connected to the swing arm 17 for circulation operation with respect to the planting claw 5 so as to swing integrally is connected to the drive rotation shaft 4. Swing lever 1 attached to
9, the swing link 1 accompanying one cycle operation of the planting claw 5
The drive rotation shaft 4 is connected so as to be driven back and forth at a constant angle (for example, 120 degrees) by one reciprocating swing of the shaft 8.

The dispensing device of the present invention can be used for dispensing various types of powder and granular materials, such as dispensing powdered fertilizer for fertilization, as well as dispensing seeds for sowing.

In carrying out the present invention, the drive rotation shaft 14
may be made to rotate continuously in a fixed direction,
Further, as described in the embodiment, when the driving rotation shaft 4 is reciprocated at a constant angle, the configuration of each part can be changed in various ways, such as forming the rotating body 3 into a fan shape when viewed in the direction of the rotation axis. .

[Brief explanation of the drawing]

The drawings show an embodiment of the agricultural granular material dispensing device according to the present invention, and FIG. 1 is a partially cutaway side view of the fertilizer dispensing device for a rice transplanter, FIG. 2 is a vertical cross-sectional rear view of the dispensing case portion, and FIG. is a view taken along the - line in FIG. 2, FIG. 4 is a view taken along the - line in FIG. B is a schematic diagram showing the sliding operation state of the rotating body and the protruding piece. DESCRIPTION OF SYMBOLS 1...Storage tank, 2...Discharge port, 3...Rotating body for feeding, 11...Protrusion piece for adjusting the receiving amount, U...Concave groove for receiving.

Claims (1)

[Claims] 1. A rotary body 3 for dispensing powder and granule having a concave groove U for receiving powder and granule along the rotational axis direction on its outer circumference is provided to face the discharge outlet 2 of the powder storage tank 1, and An agricultural powder and granule feeding device is provided with a receiving amount adjusting protrusion 11 that engages in a concave groove U so as to freely adjust the movement in the axial direction of the rotating body, and the rotating body 3 and the protruding piece 11 are a state in which the discharge port 2 is closed by the protruding piece 11 and the outer circumferential portion of the rotary body 3, with the rotary body being supported so as to be integrally slidable in the axial direction;
and an agricultural granular material dispensing device configured to be able to switch to a state in which each of the rotary body 3 and the protruding piece 11 is separated from the discharge port 2.