JPH02195838A - Powder-delivery structure - Google Patents

Abstract

PURPOSE:To obtain an easily maintainable powder-delivery apparatus by detachably attaching a powder delivery member to a rotary shaft and detachably placing a hopper on the member. CONSTITUTION:A delivery member 18 having a rotary disk shape is provided with a number of powder-passing through-holes 17 formed in circumferential direction at a prescribed pitch. The delivery member 18 is placed in a state to position the passing channel of the through-hole 17 close to the powder discharging port at the lower end of a storage hopper 13. The powder is delivered by the intermittent rotation of the delivery member 18 at the pitch of the through-holes. In the powder-delivery apparatus having the above structure, the delivery member 18 is detachably attached to a rotary shaft 28 and the hopper 13 is detachably attached to a position above the member. The hopper 13 is provided with a pressing member 43 to inhibit the flotation of the delivery member 18 in the attaching of the hopper 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention provides a rotating disk-shaped feeding member in which a large number of through holes for passing powder or granular material are formed at a predetermined pitch along the circumferential direction. 2. A powder and granule material dispensing device which is disposed in such a manner that the passage of the material faces the lower end outlet of a storage hopper, and is configured to intermittently rotate the dispensing member at each pitch by a drive mechanism to dispense a predetermined amount of powder and granule material. .

[Conventional technology]

As the above-mentioned conventional feeding device, there is one having a structure previously filed by the present applicant (Japanese Patent Application No. 179358/1983). In other words, the feeding member is fitted and mounted from above the vertical drive shaft, and the structure is such that it is tightened and fixed from above with a nut.

[Problem to be solved by the invention]

The above-mentioned conventional structure is designed to be able to rotationally drive the feeding member with high accuracy and to prevent it from floating upward to ensure a reliable feeding function. However, in this type of feeding device, When used for a long period of time, fine powder particles may adhere to and accumulate on the feeding member, and maintenance work such as cleaning or replacement is required every predetermined period of use. However,
In the above conventional structure, when performing maintenance work as described above, the hopper must first be removed and then removed by loosening the nut, and when reinstalling, the nut must be tightened and fixed, which makes the work cumbersome. It had become.

The present invention aims to eliminate the above-mentioned disadvantages through rational improvements.

[Means to solve the problem]

A feature of the present invention is that, in the powder and granular material dispensing structure described at the beginning, the dispensing member is fitted and attached to the drive shaft extending from the drive mechanism so that it can be freely inserted and removed and rotated integrally with the hopper. The hopper is configured to be detachable, and the hopper is provided with a presser part that comes into contact with the upper part of the feeder member to prevent it from lifting up when the hopper is attached, and its functions and effects are as follows.

[For production]

In other words, when removing the feeding member for maintenance work, removing the hopper releases the contact restriction by the holding part, and the feeding member can be freely pulled out from the drive shaft, without requiring any special release work. , it can be removed as is. And when reinstalling,
All you have to do is insert the feeding member into the drive shaft and attach the hopper. At this time, the feeding member can reliably feed out the powder and granular material because the contact is regulated by the holding portion of the hopper.

〔Effect of the invention〕

Therefore, by rational structural improvement, it has become possible to easily remove the powder and granular material feeding member, which requires maintenance work, without any trouble.

〔Example〕

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

FIG. 9 shows a riding type rice transplanter according to the present invention. This rice transplanter connects a seedling planting device (3) to the rear part of a riding type traveling body (1) via a link mechanism (2) that is driven up and down. Fertilizer application device (4
) is attached, and a chemical dispersion device (5) is further arranged behind it.

As shown in FIGS. 6 and 7, the seedling planting device (3) performs planting using a seedling platform (6) that is tilted downward after placing the seedlings.
) is attached to the planted transmission case (7) which also serves as the frame so that it can move back and forth laterally with a constant stroke, and three chain cases (8) integrally extended rearward from the planted transmission case (7). A planting mechanism (9) is provided on each side of the rear part, and it is constructed in a 6-row planting type. The planting mechanism (9)
is a rotating case (lO) which is rotatably driven around the central horizontal axis (X+) at the rear of the chain case (8).
The planting claws (11) are attached to both ends of the rotary case (10), and as the rotating case (10) rotates, the planting claws (11) draw an elliptical trajectory to cut out the seedlings and plant them in the field. be. In the planting transmission case (7) and in each chain case (8), a clutch mechanism (C) is installed which separately connects and disconnects the power to the planting mechanism (9), and each clutch mechanism The important operation in (C) is the seedling stand (6)
It is configured to be manually operated by the clutch lever (12) for each row installed on the front side of the machine, and the partial row planting that only drives a part of the planting mechanism (9) is controlled by the state and the entire planting mechanism (9). The prefecture-wide planting is designed to be switchable depending on the state.

The drug dispersing device (5) is equipped with a hopper (13) in the upper center for storing a powdered drug, and is provided with a feeding mechanism (14) below the hopper (13) for feeding out a predetermined amount of the drug. The chain case (15) is configured to include a substantially box-shaped guide member (15) that extends long in the horizontal direction and is open at the bottom in order to spread the dispensed medicine in substantially the entire width. 8) is supported and fixed via a support frame (16) fixedly extended from the rear.

To be more specific, as shown in FIGS. 1 and 2, a rotating disc-shaped feeding member ( 18)
A drug supply port (19), which is a lower end outlet, is formed at an upper position corresponding to the through-hole rotation locus in the hopper (13).
A drop hole (2
1) is formed.

Then, the vertical drive shaft (23) of the feeding member (18)
) and the planting mechanism (9) are interlocked and connected via a drive mechanism (A).

To be more specific, as shown in FIGS. 6 and 7, there are two screws on both ends of the rotating case (10) of the planting mechanism (9) driven by the left and right chain cases (8), (8). The bracket (24) is installed and fixed over the entire area, and the bracket (25) extends from the lower front of the guide member (15).
The negative end of the balance arm (26) pivoted on the push-pull rod (
One end of the balance arm (26) is pivotally connected to the swing arm (27) via the bracket (25).
8) is pivotally connected to a midway portion of the shaft 8) via a link (29). and a swinging end of the swinging arm (28);
One-way clutch (30) attached to the drive shaft (23)
, (30) are interlocked and connected by a wire (31), and as the rotating case (lO) rotates, the feeding member (18) is intermittently rotated by a distance equivalent to the pitch of the through hole (17) to feed out the drug. This constitutes a drive mechanism (A). By providing two interlocking systems in this manner, it is possible to maintain the feeding function even if partial row planting is performed by operating the clutch lever (12) for each row.

The medicine that has fallen through the drop opening (2) is splashed by a rotating blade (34) installed on the upper surface of a rotating disk (33) that is driven to rotate at high speed around the vertical axis by an electric motor (32). It is configured to fly and guide along the inner wall of the guide member (15), and to spread and release substantially the entire planting over the width.

The hopper (13) is configured to be removably attached to the upper part of the feeding mechanism (14), and is configured so that the feeding member (18) can be easily removed. To explain in detail, the outer case part (3) formed at the bottom of the hopper (13)
5), a buckle mechanism (37) is installed between the case part (36) surrounding the feeding mechanism (14) on both sides of the
It is configured so that it can be detachably installed and fixed.

On the other hand, the feeding member (18) is fitted and mounted above the drive shaft (23) so that it can be freely inserted into and removed from the drive shaft (23) and can be rotated integrally with the drive shaft (23).

That is, as shown in FIG. 5, a fitting recess (3
8) is formed in the protruding shaft portion (39) that protrudes upward, and a drive shaft (
23) is formed radially outward on the engagement protrusion (40
) is formed with an engaging groove (41) that engages in the vertical direction. In this way, the engagement protrusion (40) and the engagement groove (41)
The feeding member (18) is provided so as to be rotatable together with the drive shaft (23) by engagement with the drive shaft (23).

The protruding shaft portion (39) is attached to the lower part of the hopper (13).
) is provided with a presser portion that comes into contact with the upper end of the container to prevent it from rising. To explain in detail, as shown in Fig. 4, the hopper (1
3) to the bracket (42) fixed to the bottom of the horizontal axis (
x2) Contact plate (43) as a holding part that can freely swing around
Attach the contact plate (43) to the helical spring (44).
This is a downward swing bias. Moreover, the abutting plate (43)
A swinging arm (45) that swings integrally is connected to the swinging arm (45), and the supply port (19) is connected to the swinging end of the swinging arm (45) in conjunction with the swinging of the contact plate (43). A shutter member (46) for opening and closing is pivotally connected. With this configuration, when the hopper (13) is attached, the protruding shaft portion (3
9) is pressed to prevent floating and maintain a reliable feeding operation, and the shutter member (46) is accordingly set to the open state.

Furthermore, when the hopper (13) is removed, the contact plate (43) swings downward under the biasing force of the helical spring (44), and in conjunction with this, the shutter member (46) is automatically set to the closed state. Therefore, the residual medicine inside the hopper (13) can be prevented from leaking out from the supply port (19).

The upper end of the protruding shaft portion (39) is formed into a sharp shape in order to reduce the pressing friction force by the contact plate (43) so as not to impede the rotational drive.

With the configuration described above, when the hopper (13) is removed, the feeding member (18) can be inserted and removed as is, and maintenance work such as cleaning can be easily performed.

[Another example]

The contact plate (43) is a shutter member (
46), it may be provided independently at a different location.

Further, the present invention can be applied not only to medicines but also to structures for dispensing fertilizers and other various types of granular materials.

The drive mechanism (A) may use various drive means such as intermittent rotation by an electric motor instead of the interlocking structure described above.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an example of the structure for feeding out powder and granular material according to the present invention,
Figure 1 is a vertical side view of the main part, Figure 2 is a cross-sectional view taken along the line ■-■ in Figure 1, Figure 3 is a cross-sectional view taken along the line ■-■ in Figure 1, and Figure 4 is a vertical cross-sectional view of the lower part of the hopper. Side view, Figure 5 is an exploded perspective view of the main parts,
Fig. 6 is a side view of the rear part of the rice transplanter, Fig. 7 is a rear view of the rice transplanter, Fig. 8 is a plan view of the rear part of the rice transplanter, and Fig. 9 is an overall side view of the rice transplanter. (13)...Hopper, (17)...Through hole, (18)...Feeding member, (19)...
...Outlet, (23)...Drive shaft, (43).
... Presser section, (A) ... Drive mechanism.

Claims (1)

[Claims] A large number of through holes (
17), a rotating disk-shaped feeding member (18),
The passage of the through hole (17) is arranged so as to face the lower end outlet (19) of the storage hopper (13), and the drive mechanism (A)
A powder and granular material feeding device configured to feed out a predetermined amount of powder and granular material by rotating the feeding member (18) intermittently at each pitch, the drive shaft (23) extending from the drive mechanism (A). ), the feeding member (18) is fitted and attached so as to be removable and integrally rotatable, and the hopper (13) is configured to be detachable, and when the hopper is attached, the upper part of the feeding member (18) The hopper (13) is provided with a powder feeding structure in which the hopper (13) is provided with a presser part (43) that comes into contact with the powder and prevents it from rising.