JP2758310B2 - Powder feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for feeding a powdery or granular material such as fertilizer supplied to a field, and more particularly, to a feeding roll having a powdery / particle feeding recess formed in an outer peripheral portion inside a feeding case. The concave portion is rotatably provided at a position facing the upper granular material storage space and a position facing the lower granular material discharge space, and is wound along the outer peripheral surface of the feeding roll; The present invention relates to a powder and granular material feeding device provided with a shutter member that can be freely rotated and operated to switch between a state of shutting off and a state of opening between the powder and granular material storage space.

[0002]

2. Description of the Related Art Conventionally, in the above-mentioned powdery material feeding apparatus, as disclosed in, for example, Japanese Patent Application Laid-Open No. 3-43010, the left and right ends of the shutter member are attached to left and right side walls of a feeding case, respectively. A pair of left and right rotating members that are supported are screwed and fixed to the outer peripheral surfaces, and the left and right rotating members are configured to support both ends of the feeding roll.

[0003]

The above structure is configured so that a predetermined amount of fertilizer can be discharged by rotating a feeding roll while the fertilizer in the storage space enters the recess. In the non-working state, the recess and the fertilizer storage space can be shut off by the shutter member so that the fertilizer is not discharged due to unexpected vibration of the feeding roll or the like.

In addition, by connecting both ends of the shutter member to the rotating members supported on the left and right side walls, the rigidity of the entire shutter member made of a thin sheet material is increased, and the shutter member is smoothly rotated with less deformation and kinking. The shutter member and the pay-out roll are always kept in parallel with each other by supporting the both ends of the pay-out roll with the left and right rotating members, and the shutter member and the pay-out roll are partially in strong contact with each other. Thus, the structure does not cause resistance to the rotation of the shutter member and the feeding roll.

However, in the conventional structure, the shutter member is screwed and fixed to the left and right rotating members as described above. Therefore, when the assembling work is performed, the shutter member is provided by attaching a feeding roll in a feeding case. After winding the screw, it is necessary to perform a screwing operation along a radial direction in a narrow portion with respect to the left and right rotating member, and there is a disadvantage that the assembling and disassembling operations are difficult to perform, and there is room for improvement.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned disadvantages of the conventional structure by improving the structure for mounting the shutter member.

[0007]

According to a feature of the present invention, in the powder and granular material feeding device described at the beginning, a pair of left and right turns for preventing the outside from being pulled out is provided on each of the left and right side walls of the feeding case. A moving member is provided concentrically, the shutter member is inserted and connected over these rotating members, and the feed roll is rotatably supported by the rotating member.

[0008]

According to the above construction, the shutter member wound around the feeding roll is inserted and connected to the rotating members mounted on the right and left sides of the feeding roll. The work can be easily performed from the axial direction, and the conventionally used screw for connecting the shutter member and the tightening process thereof are not required.

Further, since the left and right rotating members, which are prevented from coming out, are connected and integrated by the shutter member, the structure combining the shutter member and the left and right rotating member can be moved in either the left or right direction. Also become unmovable,
The shutter member always operates stably at a predetermined position in the axial direction in a state where the shutter member is held in both left and right directions.

[0010]

Therefore, according to the present invention, the structure in which both ends of the shutter member are supported by the left and right rotating members is maintained,
Although it is possible to rotate the shutter member with high rigidity and stability, the assembly and disassembly work is easier and easier than with the conventional structure that was screwed,
Manufacturing costs can be reduced by reducing man-hours and the number of parts.

[0011]

Embodiments will be described below with reference to the drawings. FIG.
Shows the rear part of a rice transplanter with a fertilizer application device. In this rice transplanter, a seedling planting apparatus 1 is connected to a rear portion of a traveling machine body (not shown) via a link mechanism so as to be movable up and down.
The fertilizer applicator 2 is attached to the rear part.

The fertilizer applicator 2 includes a hopper 3 for storing fertilizer at an upper portion thereof, and a dispensing mechanism 4 for dispensing a predetermined amount of fertilizer as a granular material below the hopper 3. A downflow pipe 5 for downflow guidance is disposed below and in communication therewith. At the lower end of the downflow pipe 5, a groove-making device 6 for forming a fertilizing groove on the mud surface is provided.

As shown in FIG. 1, the feeding mechanism 4 rotates a feeding roll 8 having a plurality of fertilizer feeding recesses 7 formed on an outer peripheral portion thereof, so that the recesses 7 are moved from a position facing the upper fertilizer storage space. When rotating toward a position facing the lower fertilizer discharge space, the fertilizer that has entered the recess 7 and is stored is fed out downward. The feeding roll 8 is fitted around the drive shaft 9 so as to be rotatable integrally,
In the seedling planting apparatus 1, the rotary planting mechanism 10 of the rotary planting mechanism 10 is interlocked and connected via a push-pull rod 14 extending from a position eccentric from the rotation axis of the rotating case 11 to interlock with rotation driving of the rotating case 11. Thus, the drive shaft 9 is configured to rotate in a certain direction.

The feeding roll 8 has a fixed roll portion 8a formed in the outer peripheral surface along the axial direction at predetermined intervals along the axial direction to be fixed to the drive shaft 9 in a fixed position. Mating with the fertilizer recess 7
And a movable roll portion 8b which is relatively movable along the axial direction. The movable roll portion 8b is screwed to an operation cylinder shaft 16 provided so as to be rotatable relative to the outer peripheral portion of the drive shaft 9 and to be fixed in the axial direction with respect to the fixed roll portion 8a. The operating cylinder shaft 16 is provided to extend outside the feeding case 17, and is provided with the operating tool 1.
8, so as to be freely rotatable. That is, when the operating tool 18 is rotated, the moving roll portion 8b is screwed and moved, and the depth of entry into the concave groove 15 is different.
The capacity of the fertilizer-containing recess 7, that is, the amount of the fed-out fertilizer can be changed. And the operating cylinder shaft 1
Between the fixed roll 6 and the fixed roll portion 8a, ten grooves are formed at a constant pitch in the circumferential direction in which the balls 20 pressed by the springs 19 are engaged so that they can be easily fixed at the operation adjustment position. It is configured to be able to. The operation tool 18
Is rotated by one turn, so that the moving roll portion 8b is moved by one scale.
The amount of adjustment is set so that moves laterally.

A brush 21 that slides on the outer peripheral surface of the feeding roll 8 to slide the fertilizer accumulated in the recess 7 is provided below the fertilizer feeding rotation direction from the fertilizer storage space.
Is freely switchable between an operating position and a fertilizer discharge position separated from the feeding roll 7. That is, as shown in FIG. 2, the support shaft 2
2 and the support member 23 is attached so as to be rotatable as one body.
The support member 23 supports the brush 21 and the support shaft 2
2, a rotation operation lever 24 is mounted on the outside of the case. The operation lever 24 is configured to be elastically deformable by a spring wire, and the case 1
It is configured so that it can be fixed in position by engaging with the locking portion 25 formed in FIG.

A shutter member 26, which is rotatable and operable, is wound around the outer periphery of the feeding roll 8 so as to switch between a state in which the recess 7 and the space for storing the granular material are opened and a state in which the space is opened. Deployed in state. As shown in FIG. 3, the shutter member 26 is made of an abrasion-resistant material obtained by bending a band plate into an arc shape, and has a notch 27 formed at one end in the winding direction at a position corresponding to the concave portion 7.

The left and right side walls 17a, 1 of the feeding case 17
7b, a pair of left and right rotating members 28, 28 are coaxially fitted and supported so as to be rotatable and unable to come out outwardly, and on the opposed inner side surfaces of the left and right rotating members 28, 28. The left and right ends of the shutter member 26 are inserted and connected to the formed groove so that the left and right rotating members 28 and 28 and the shutter member 26 can be integrally rotated.

The small-diameter portions on both left and right sides of the feeding roll 8 are rotatably inserted and supported by the left and right rotating members 28, 28, and an operation lever 29 is provided on the outer side of the case of the one rotating member 28. When the operation lever 29 is rotated and the operation lever 29 is rotated, as shown in FIG. 1, the recess 7 is opened by the notch 27, and the fertilizer is fed out toward the fertilizer storage space. It is configured so that it can be switched to the fertilizer feeding stop state in which the concavity 7 and the fertilizer storage space are shut off by turning to the side. In addition,
The operation lever 29 is configured to hold and lock the position in the locking portion 30 formed on the outer surface of the case in the above two states.

In the claims, reference numerals are provided to facilitate comparison with the drawings, but the present invention is not limited to the configuration shown in the accompanying drawings.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view of a feeding mechanism.

FIG. 2 is a longitudinal side view of a feeding mechanism.

FIG. 3 is a perspective view of a shutter member.

FIG. 4 is a side view of the rear part of the rice transplanter.

[Explanation of symbols]

 7 Concave portion 8 Feeding roll 17 Feeding case 17a, 17b Side wall 26 Shutter member 28, 28 Rotating member

Claims (1)

(57) [Claims] 1. A feeding roll (8) having a powder material feeding concave portion (7) formed on an outer peripheral portion inside a feeding case (17), wherein the concave portion (7) faces a powder material storage space above. The roll is provided so as to be rotatable and switchable between a position and a position facing the lower particulate discharge space, and is wound along the outer peripheral surface of the feeding roll (8), and the concave portion (7) and the particulate storage space are provided. a granular material feeding apparatus is provided with a rotational operation freely shutter member switchable between a state of opening a state of blocking (26) between the feeding cable
Left and right side walls (17a) and (17b)
A pair of left and right rotating members that prevent
(28), (28) are installed concentrically,
The shutter member (2) extends over (28) and (28).
6), connecting and connecting the rotating members (28),
(28) The unwinding roll (8) is rotatably supported on (28).
Granular material feeding device you have.