JPH0343010A - Powder delivery apparatus - Google Patents

Abstract

PURPOSE:To adjust the position of a brush with simple operation by implanting brush on a brush-forming member and supporting the forming member in a longitudinally movable state with a supporting member attached to an extensible case. CONSTITUTION:A supporting member 28 is attached to an extensible case in a state freely rotatable around a horizontal shaft. A pair of elastically deformable cantilever reeds 30, 30 are extended from a brush-forming member 29 having implanted brush 16. A position-adjusting and fixing mechanism 31 is placed between the supporting member 28 and each reed 30, 30 in such a manner as to be freely detachable according to the elastic deformation of each reed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a dispensing roll having a concave portion for dispensing powder and granules formed in its outer periphery at a position facing an upper powder and granule storage space and a position facing a powder and granule material below. A brush for removing powder and granular material is provided in a position facing the discharge space so as to be freely switchable and rotatable, and a brush for sliding powder and granular material that comes into sliding contact with the outer periphery of the delivery roll is attached to the delivery case so that its position can be freely adjusted in a direction toward and away from the outer periphery of the roll. This invention relates to a certain powder feeding device.

[Conventional technology]

In the above-mentioned powder and granular material feeding device, conventionally,
As disclosed in Japanese Patent No. 21816, an elongated insertion hole is formed in the brush forming member, and the brush forming member is slidably supported by the feeding case,
Some devices have a structure in which the position is adjustable and tightened using a tightening screw inserted through the elongated insertion hole.

[Problem to be solved by the invention]

With the structure described above, if the brush wears due to sliding contact due to long-term use, a gap will occur between the feed roll and the brush, making it impossible to maintain an accurate feed amount.
In such a case, consideration has been given to allowing the brush forming member to slide and adjust to perform normal operation.

However, in the conventional structure described above, since the position adjustment work is performed by rotating the screw, the screw tightening and tightening work must be performed, which is cumbersome.

An object of the present invention is to eliminate the above-mentioned disadvantages.

[Means to solve the problem]

A feature of the present invention is that in the powder and granular material dispensing device described at the beginning, a brush forming member in which the brush is implanted is supported on a support member attached to the dispensing case so as to be movable forward and backward; A cantilevered tongue piece that can be freely deformed is provided, and a position adjusting and fixing mechanism is provided between the tongue piece and the support member, which can be freely engaged and detached according to the elastic deformation of the tongue piece. , its actions and effects are as follows.

[For production]

In other words, when the brush wears out due to long-term use, the tongue piece is elastically deformed and the brush forming member is moved forward and backward to adjust its position while the adjusting and fixing mechanism is released from the locked state. . Then, after the position adjustment, when the elastic deformation operation of the tongue piece is stopped, the position adjustment and fixing mechanism is brought into a locked state and fixed in position by the elastic restoring force of the tongue piece at that position.

〔Effect of the invention〕

Therefore, according to the present invention, the position of the brush can be adjusted with an extremely simple operation of simply pinching the tongue piece with your fingers to elastically deform it, sliding it as it is, and then releasing the pinching operation. Became.

〔Example〕

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

FIG. 5 shows the rear part of a rice transplanter equipped with a fertilization device (1) which is an example of a powder delivery device according to the present invention. This rice transplanter has a seedling planting device (2) connected to the rear of the traveling body (not shown) via a link mechanism so that it can be raised and lowered, and a fertilizing device (1) is attached to the rear of the seedling planting device (2). It is equipped.

The fertilizer application device (1) has a fertilizer storage hopper (3) in the upper part.
A feeding section (4) for dispensing a predetermined amount of fertilizer is installed below the hopper (3), and a lower end of the downflow pipe (6) is provided below the hopper (3) via an inclined guide section (5). A groover (7) is attached to form a fertilization groove on the mud surface.

Next, the feeding section (4) will be explained.

As shown in FIGS. 2 to 4, a feed roll (9) having a plurality of fertilizer feeding recesses (8) formed on its outer periphery is intermittently rotated so that the recesses (8) When rotating from a position facing the storage space to a position facing the fertilizer discharge space below, only the fertilizer stored in the recess (8) is delivered downward.

The feed roll (9) is fitted around the drive shaft (lO) so as to be integrally rotatable, and is offset from the center of rotation of the rotation case (12) of the rotary planting mechanism (11) in the seedling planting device (2). The rotating case (1
The drive shaft (10) is intermittently rotated in a fixed direction in conjunction with the rotational drive of 2).

Also, the recess (
8) Brush (16) that removes the fertilizer accumulated inside.
) is attached to the feeding case (17) so that its position can be freely adjusted in the direction toward and away from the outer periphery of the roll. A filtering net (18) is installed on the inclined surface of the inclined guide section (5), and a storage case (19) for storing powdered fertilizer is provided below the filtering net (18). This prevents powdered fertilizer from adhering to the inner surface of the pipe (6) and reducing the feeding function.

As shown in FIG. 6, a guide plate (20) is provided in the fertilizer discharge space below the feed roll (9) to guide the fallen fertilizer down toward the filtering net (18). This guide plate (20) is configured to be inserted between the removable lid body (21) that closes the open side surface of the dispensing case (17) and the dispensing case (17) to maintain its position. It is. That is, the clamping pieces (22), (2
2), and a recess (23) into which the holding pieces (22), (22) fit into the open edge of the feeding case (17).
), (23) are formed, and the clamping pieces (22), (
22) are fitted into the recesses (23), (23), and when the lid body (21) is attached, it can be clamped and fixed.

A shutter member (24) made of a wear-resistant material formed by bending a band plate is wound around the outer periphery of the feed roll (9) so as to be relatively rotatable. In other words, the shutter member (24) is a rotating member (25), which is relatively rotatably interposed between the feeding roll (9) and both side walls (17a), (17a) of the feeding case (17). 25), and an operating tool (26) is attached to the outer side of the case of one rotating member (25).

Then, rotate the operating tool (26) to remove the recess (8).
It is configured so that it can be switched between a closed state in which the upper part is covered and a drawing-out state in which the upper part of the recess (8) is opened by means of a notch (27) formed in the shutter member (24).

Next, the mounting structure of the brush (16) will be explained.

As shown in Figures 1 to 3, the feeding case (17
), a support member (28) is attached to the support member (28) so as to be rotatable around the horizontal axis (P), and a brush forming member (29) in which the brush (16) is implanted is movably moved back and forth on this support member (28). I support it. Then, the brush forming member (29
) a pair of cantilevered tongues (30) that can be elastically deformed
, (30) are extended between each tongue piece (30), (30) and the support member (28).
A position adjusting and fixing mechanism (31) is provided which can be freely engaged and detached according to the elastic deformation of (30). To explain in detail, the feeding case (1
7) The pivot shaft (
The support member (28) is fitted onto the support member (28) without integral rotation, and one end of the rotation support shaft (32) is made to protrude to the outside of the case, and an operating lever (33) for rotating the support shaft is fitted onto the support member (28). is installed. Then, by operating this operating lever (33), a state in which the brush (16) is in sliding contact with the outer periphery of the feed roll (9) (see Figure 2) and a state in which the brush (16) is separated from the feed roll (9) for fertilizer discharge ( (see FIG. 3).

The operation lever (33) is configured to be elastically deformable by a spring wire material, and is configured in a direction in which the support member (28) is pressed against the feeding case (17) when the brush (16) is operated to the sliding contact position. The operating lever (33) is configured to be elastically deformed and releasably engaged and fixed to a fixing portion (34) formed on the feeding case (17).

The support member (28) has an oval-shaped fitting hole (32) into which the pivot shaft (32) having an oval-shaped cross section is inserted so as to be movable.
35) is formed, and the pull-out case (
The upper opposing portion (36) between the upper part (36) and the upper part (36) is formed in a concentric circle shape as it rotates, and is designed to prevent problems caused by fertilizer getting caught in the rotation operation.

The position adjustment fixing mechanism (31)
, (30) with a fine pitch waveform forming part (37) formed on the upper part of the outer side, and waveform forming parts (38) formed at a location opposite to (37), (38). .

The respective waveform forming portions (37), (38) have the same pitch and the same shape, and when the tongue pieces (30), (30) are in a free state, the respective waveform forming portions (37), (38) have the same shape. Each tongue piece (30), (30) is configured to engage in occlusal engagement to restrict the forward and backward movement of the brush forming member (29).
The outer lower part (30a), (30a) of the support member (2
8), so that it protrudes outward, and can be deformed by pinching inward by manual operation. Also, each tongue piece (30).

On the inner side of (30), there is an abutment regulating part (30b) for regulating the amount of deformation of the knob to the minimum necessary enough to release the locking of the position adjusting and fixing mechanism (31).

(30b) is formed.

The surface (28a) of the support member (28) facing the fertilizer storage space
) in the sliding contact state, the feeding case (17
) is configured so that an effective sliding action can be performed by closing a notch (40) formed in a funnel-shaped partition wall (39) that partitions the fertilizer storage space and the fertilizer discharge space. In this state, the notch (40) is opened so that the fertilizer can be quickly discharged. Both side walls (
41).

(41) are provided in a state that protrudes laterally from the space provision surface (28a), and these both side wall portions (41), (41
) is configured so that the upper end surface of the partition wall (39) contacts the partition wall (39) to regulate its position, and maintains the sliding contact state against the elastic reaction force of the operating lever (33) as described above. .

With this configuration, the brush (1
6) is worn and when adjusting to the normal sliding contact state, pinch the tongues (30), (30) to slide the brush forming member (29>) and stop the pinch operation. This can be done with an extremely simple operation.

[Another Embodiment] Instead of providing a pair of the tongue pieces (30), (30), they may be provided only on one side.

In place of the above-described structure, the position adjustment and fixing mechanism (31) has one of the mechanisms configured with a thin engagement pin, and the other of which has a number of retaining grooves in which retaining pins are fitted, formed in reverse rows. It may be something you do.

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 drawings]

The drawings show an embodiment of the powder and granular material feeding device according to the present invention,
Fig. 1 is a diagram showing the attached state of the brush forming member and the support member, Fig. 2 is a longitudinal sectional side view of the main part in the sliding contact state, Fig. 3 is a longitudinal sectional side view of the main part in the fertilizer discharging state, and Fig. 4 5 is a side view of the rear part of the rice transplanter, FIG. 6(A) is a perspective view of the guide plate, and FIG. 6(B) is a rear view of the guide plate. (8)... Concavity, (9)... Feeding roll, (16)... Brush, (17)...
... Feeding case, <28> ... Supporting member, (29) ... Brush forming member, (30) ...
... tongue piece, (31) ... position adjustment and fixing mechanism.

Claims (1)

[Claims] A feed roll (9) having a recess (8) for feeding powder and granules formed on its outer periphery is arranged in two positions: one facing the upper powder storage space and the other facing the powder discharge space below. Rotatably installed to switch to
A powder/granular material feeding brush (16) that slides on the outer periphery of the feeding roll (9) is attached to the feeding case (17) so that its position can be freely adjusted in the direction toward and away from the roll outer periphery. The device includes a support member (28) attached to the feeding case (17).
, a brush forming member (2) in which the brush (16) is installed;
A cantilevered tongue piece (30) that can be elastically deformed and operated from the brush forming member (29).
) is extended, and the tongue piece (30) and the support member (28)
A powder and granular material feeding device is provided with a position adjusting and fixing mechanism (31) that can be freely engaged and detached according to the elastic deformation of the tongue piece (30).