JPH073859Y2 - Fertilizer application - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention confronts a discharge port that guides the fertilizer fed from a fertilizer storage hopper downward, and forms a concave portion for receiving the fertilizer on the outer peripheral surface of the rotator for grooving. The fertilizer received in the state in which the concave portion is located above the mud surface is pushed out from the concave portion at a predetermined position where the fertilizer is thrust into the mud along with the rotation of the grooving rotary body and the grooving rotation is performed. The present invention relates to a fertilizer application device provided on the body.

[Conventional technology]

Japanese Patent Application No. Sho 63-70968 previously filed by the applicant.
As proposed in No. 4, the means for supplying the fertilizer in the hopper to the concave portion on the outer circumference of the grooving rotary body is arranged so that the discharge ports for guiding the fertilizer to flow downward are arranged opposite to the concave portion, and gravity is used to naturally fall. The fertilizer was dropped into the recess.

[Problems to be solved by the device]

However, it has been found that the following problems occur in the fertilizer application apparatus using the fertilizer supply means according to the above-mentioned proposed technique.

That is, in the fertilization by the fertilizer application, it is intended to act on the predetermined depth position of the mud, and during the fertilizing work, the groove cutting rotary body is always immersed in the mud, so that the fertilizer is pushed into the concave portion after being extruded. A scraper guide is provided to prevent mud from entering, and a brush is provided at the end of this guide so that mud does not adhere to the recess just before fertilizer supply so that fertilizer can be supplied to the recess without hindrance. However, it is still difficult to completely remove the adhesion of the mud to the concave portion, the fertilizer is not properly supplied by the adhered mud, and as a result, fertilization into the mud may not be carried out as prescribed.

Therefore, as a countermeasure, it is possible to use a rotating brush as the brush, or to blow compressed air to the recess just before the fertilizer is supplied to remove the mud adhering to the recess,
It is practically difficult to completely remove the adhered mud from the concave portion, which constantly goes in and out of the mud.

In view of the above situation, the present invention has an object to prevent mistakes in fertilizer supply to the recess by devising the fertilizer supply means to the recess.

[Means for Solving the Problems]

In order to achieve the above object, the present invention is characterized in that, in the fertilizer application described at the beginning, a push-in tool for forcibly pushing fertilizer from the hopper into the recess is provided in the discharge port.

[Action]

According to the above configuration, since the fertilizer is supplied to the concave portion, the fertilizer is forcibly packed in the concave portion by the pushing tool,
Even if some mud adheres to the recess, the push-in tool can pack fertilizer with the mud, eliminating the problem that the adhered mud prevents the fertilizer from being supplied to the recess. To be done.

[Effect of device]

Therefore, it is possible to eliminate the poor fertilization application to the mud, and the means is to improve the fertilizer delivery outlet by only providing a pushing tool, so that the structure of the conventional fertilizer application can be followed, and economically. There is an advantage that the desired purpose can be achieved without any disadvantage.

〔Example〕

Hereinafter, a riding type rice transplanter equipped with a fertilizer application, which is one of the embodiments of the present invention, will be described with reference to the drawings.

As shown in FIG. 3, a planting arm (2) that is rotationally driven at the rear of the planting mission (1) and a seedling stand that slides on a guide rail (3) attached to the planting mission (1). A seedling planting device is constituted by (4) and the like, and this seedling planting device is movably connected to a machine body (not shown) via a four-link mechanism (5).

The seedling planting device is equipped with a fertilizer application device as an agricultural powder and particle dispersal device. As shown in the figure, the fertilizer application device continuously repeats fertilizer storage hopper (7) and fertilizer in the hopper (7). Feeding mechanism (9) with feeding roll (8) inside
Etc.

A feeding case (6) for accommodating the feeding roll (8)
A pair of front and rear funnel parts (17A) and (17B) are formed on the
A grooving device (15) is attached to the front funnel (17A) side via a downflow hose (18). It is integrally fixed to the ground float (19) together with the grooving device (15) and the grooving plate (16), and the fertilizer dropping groove is located at a predetermined depth below the mud surface as the rice transplanter moves. While being formed, the fertilizer fed from the front chamber of the fertilizer storage hopper (7) partitioned by the partition plate (20) is guided into the groove. This grooving device (15) is provided on the side of each planting row, and is applied to the work for performing shallow fertilization with a fertilizer dropping depth of about 5 cm below the mud surface.

Next, the case of performing deep-layer fertilization by pushing one fertilizer for each two rows of planting deep under the mud (15 cm) will be described.
As shown in FIGS. 2 and 3, the ground float (1
9) Position the grooving rotary body (22) for performing deep fertilization in the rear bifurcated branch space, and use this grooving rotary body (2
2) to the hose (1) flowing down from the rear funnel (17B)
8) and its outlet (A) to supply fertilizer.

As shown in FIGS. 1 and 2, the groove cutting rotary member (2
2) is a resin rotor body (23) having a plurality of fertilizer receiving recesses (23a) formed at equal pitches on the outer peripheral surface, and is fixed to the rotor body (23) with screws from both side surfaces integrally. Metal side walls (24) and (24), a rotary drive shaft (25) fixed to one of the metal side walls (24) and (24) so as to rotate integrally, and the rotary drive shaft (25). The cam member (26) is fitted over and fixed to the rotor body, and the push-out tool (27) is supported by the rotary body (23) at equal pitches in the circumferential direction. The push-out tool (27) supports the piston (28a) for pushing out the fertilizer placed on the recess (23a) and the piston portion (28a), and the cam member (26) at the rotor axial center position. Piston rod (28b) that contacts the
And a spring (29) for pressing and pushing the extruded body (28) against the cam member (26).

With the above configuration, when the rotary drive shaft (25) rotates, the pusher tool (27) rotates integrally with the rotary body (23).
At this time, since the cam member (26) is fixed, the push-out body (28) moves along the outer peripheral surface of the cam member (26) and the radial direction of the push-out body (28) with respect to the rotor body (23). Move forward and backward. Therefore, when the recess (23a) is located on the mud surface and receives fertilizer, the extruded body (28) is retracted to the inner side of the recess (23a), and when extruding at a predetermined position in the mud surface. Can be switched to a pushing posture in which it projects from the discharge opening end of the recess (23a). The left and right side walls (24), (24) are large in diameter and extend further outward than the recess (23a), and have annular recessed grooves (the outer peripheral surface of the rotating body (28) serving as a bottom surface ( a) Forming and preventing the fertilizer from leaking out of the concave portion (23a) over approximately 160 ° from the receiving position to the discharging of the fertilizer in the concave portion (23a) in the rotation phase of the rotating body (22). The arc-shaped lid (30) is located in the annular recessed groove (a). The arc-shaped lid body (30) is hung down with its upper end fixed to the vertical link (21), and the fixed end and the tip end located in the recessed groove are capable of relative refraction as the rotating body (22) moves up and down. It is made of steel or the like. Further, the lower end of the arc-shaped lid (30) is bent downward, and has a scraper function of scraping off the mud that has entered and accumulated in the annular recessed groove (a) by the downwardly projecting portion (30a). However, before the fertilizer held by the recess (23a) and the arcuate lid (30) is extruded, mud is scraped off from the annular recessed groove (a) to ensure the extruding of the fertilizer. ing.

Then, as shown in FIG. 1, a pushing tool (10) forcibly pushing the fertilizer from the hopper (7) into the recess (23a).
Is provided in the discharge port (A).

As shown in FIG. 4, the push-in tool (10) is an operating rod (10b) made of a step-shaped bar having a pressing portion (10a) having a length substantially equal to the front-rear width of the opening of the recess (23a). ), And the operation rod (10b) is supported by a solenoid (11) fixed to the outer surface of a hollow box-shaped discharge port (A), and the push-in tool (10) is energized by energization of the solenoid (11). ) Vertically vibrates within a predetermined range.

A downflow hose (18) is inserted on the upper surface of the discharge port (A), and the cross-sectional area of this discharge port (A) is determined by the pressing portion (10).
It is made sufficiently larger than that of a) so that the falling fertilizer can flow down into the recess (23a) without hindrance.

The discharge port (A) is attached to the standing extension (30b) of the arcuate lid (30) via a rubber bush (12) for vibration-proof support.

As shown in FIG. 3, a limit switch (14) for turning on and off the energization of the solenoid (11) is attached to the lower part of the hopper (7), and the limit switch (1
4) Feeding roll (8) in feeding mechanism (9)
It is arranged so that the seesaw arm (13) for driving can be turned on and off to be operated.

To explain the operation, the groove cutting rotary body (22) is arranged so that the discharge port (A) passing cycle of the recess (23a) is synchronized with the operation of the feeding mechanism (9), that is, the planting cycle. The vertical vibration cycle of the solenoid (11) controlled by the limit switch (14) is synchronized with the cycle.

Then, the timing is adjusted so that the push-in tool (10) descends when the recess (23a) faces the discharge port (A), so that the fertilizer is applied to all the recesses (23a) by the push-in tool (10). Will be packed.

[Another embodiment]

The vertical vibration of the solenoid (11) may be controlled by a pulse signal from a pulse generator. In this case, the pulse generator is provided with a tuning circuit for adjusting the planting period.

Further, the solenoid (11) may be installed inside the discharge port (A), and further, instead of the solenoid (11), an electric motor or a cam slide mechanism using the power of the planting drive unit may be configured. The push-in tool may be configured to mechanically vibrate up and down by a slide mechanism.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a fertilizer application apparatus according to the present invention. Fig. 1 is a partial cross-sectional side view of an essential part showing the arrangement structure of a pushing tool, Fig. 2 is a plan view of a planting apparatus, and Fig. 3 is fertilizer application. Overall side view of the device,
FIG. 4 is a sectional front view of the discharge port portion. (7) …… Hopper, (10) …… Pushing tool, (22) …… Grooving rotator, (23a) …… Concave, (27) …… Extruder,
(A) ... Discharge port.

Claims (1)

[Scope of utility model registration request] 1. A recess (23a) for receiving fertilizer is provided on the outer peripheral surface of the rotator (22) for grooving so as to face the discharge port (A) for guiding down the fertilizer fed from the fertilizer storage hopper (7). A recess (23a) is formed at a predetermined position where the fertilizer received while the recess (23a) is positioned above the mud surface is thrust into the mud along with the rotation of the grooving rotary body (22).
A fertilizer applicator comprising a pusher (27) for further pushing out on the rotator (22) for grooving, which is a pusher (1) forcibly pushing the fertilizer from the hopper (7) into the recess (23a).
0) is provided in the discharge port (A).