JP2013141454A - Apparatus for feeding particulate - Google Patents

Abstract

An object of the present invention is to cause a malfunction when the volume of the eye plate hole of the eye plate is increased or decreased due to foreign matter entering between the upper eye plate hole of the upper eye plate and the lower eye plate hole of the lower eye plate. It is an object to provide a feeding device that can be suppressed.
A granular material feeding device 50 configured to feed granular material collected in an eye plate hole 61 of an eye plate 60 from an outlet 55a. The eye plate 60 includes an upper eye plate 70 and an upper eye plate 70. A lower eye plate 80 is provided, and the upper eye plate 70 penetrates from the lower surface of the upper eye plate 70 toward the lower eye plate 80 and the upper surface of the upper eye plate 70 to the tip of the projecting portion 73 in the protruding direction. The lower eye plate 80 has a lower eye plate hole 84 into which the protruding portion 73 of the upper eye plate 70 is inserted. The eye plate hole 61 is formed by the eye plate hole 84, and the eye plate hole of the eye plate hole 60 is changed by changing the insertion position of the lower eye plate 80 in the protrusion 73 of the upper eye plate 70 into the lower eye plate hole 84. The volume of 61 can be increased or decreased.
[Selection] Figure 2

Description

  The present invention relates to a technique for a granular material feeding device.

2. Description of the Related Art Conventionally, there are various known techniques for a granular material feeding device for feeding granular materials by a predetermined amount.
As such a granular material feeding device, a device that is provided in a seeding device for sowing seeds that are granular material and feeds seeds (granular material) by a predetermined amount is known (see Patent Document 1). .

  Also, in such a granular material feeding device, the granular material dropped from the hopper is supplied from the upper opening in the eye plate hole of the eye plate and stored in the eye plate hole, and the eye plate rotates. When the eye plate hole of the eye plate is located above the outlet port of the feeding plate and the eye plate hole of the eye plate communicates with the feeding port of the feeding plate, the particulate matter accumulated in the eye plate hole of the eye plate is delivered. Some are configured to be fed out from the feeding port of the plate.

Furthermore, some of such granular material feeding devices are configured to be able to increase or decrease the volume of the eye plate hole of the eye plate so that the amount of the granular material to be fed can be changed.
As a granular material feeding device configured to increase or decrease the volume of the eye plate hole of the eye plate, for example, the eye plate includes an upper eye plate and a lower eye plate, and the lower eye plate is an upper surface of the lower eye plate. The upper eye plate has a protrusion protruding from the upper eye plate to the upper eye plate side and a lower eye plate hole formed so as to penetrate the protruding direction of the protrusion from the upper surface of the lower eye plate. Has a lower eye plate hole, and the upper eye plate hole of the upper eye plate and the lower eye plate hole of the lower eye plate constitute the eye plate hole of the eye plate. The granular material feeding device is configured to be able to increase or decrease the volume of the eye plate hole of the eye plate hole by changing the insertion position of the upper eye plate into the upper eye plate hole in the protruding portion of the lower eye plate. .

JP 2001-251909 A

However, in such a granular material feeding device, foreign matters other than the granular material (for example, seed dust, iron powder from iron-coated seeds, or drug pieces, etc.) fall, and from above the upper plate, Between the upper eye plate hole of the upper eye plate and the lower eye plate hole of the lower eye plate (between the inner surface of the upper eye plate hole of the upper eye plate and the outer surface of the protruding portion of the lower eye plate) There was a risk of entering.
In such a granular material feeding device, the foreign matter enters between the upper eye plate hole of the upper eye plate and the lower eye plate hole of the lower eye plate in this way, so that the upper portion of the lower eye plate protrudes. The operation when changing the insertion position of the eye plate into the lower eye plate hole cannot be performed smoothly, and there is a possibility that an operation failure occurs when the volume of the eye plate hole of the eye plate is increased or decreased.

  The present invention has been made in view of the situation as described above, and foreign matter enters between the upper eye plate hole of the upper eye plate and the lower eye plate hole of the lower eye plate, so that the eye plate hole of the eye plate is formed. It is an object of the present invention to provide a granular material feeding device capable of suppressing the occurrence of malfunction when the volume is increased or decreased.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, according to the first aspect, when the eye plate rotates and the eye plate hole of the eye plate communicates with the payout opening, the particulate matter accumulated in the eyepiece hole of the eye plate is drawn out from the payout opening. An apparatus for feeding granular material, wherein the eye plate includes an upper eye plate and a lower eye plate, and the upper eye plate is located on the lower eye plate side from the lower surface of the upper eye plate. And a top plate hole formed so as to penetrate from the upper surface of the upper plate to the tip in the protruding direction of the projection, the lower plate serving as the upper plate A lower eye plate hole into which the protruding portion of the upper eye plate is inserted, and the upper eye plate hole of the upper eye plate and the lower eye plate hole of the lower eye plate constitute the eye plate hole of the eye plate, The volume of the eye plate hole of the eye plate hole can be increased or decreased by changing the insertion position of the lower eye plate into the lower eye plate hole in the protruding portion of the eye plate.

  According to a second aspect of the present invention, the upper eye plate has an upper protrusion that protrudes upward from the upper surface of the upper eye plate and is positioned below a spacer disposed above the upper eye plate. And it arrange | positions so that the space | interval may leave the upper surface of the said top plate, and the lower surface of the said spacer.

  As effects of the present invention, the following effects can be obtained.

  According to the first aspect of the present invention, when the foreign matter enters between the upper eye plate hole of the upper eye plate and the lower eye plate hole of the lower eye plate, the volume of the eye plate hole of the eye plate is increased or decreased. It is possible to suppress the occurrence of malfunction.

  According to the second aspect of the present invention, it is possible to prevent the upper plate and the spacer from being damaged due to the rotation of the upper plate when the foreign material enters between the upper plate and the spacer. can do.

The side view which showed the whole structure of the traveling body with which the flooded direct seeder provided with the feeding apparatus which concerns on 1st embodiment of this invention was mounted | worn. The rear view which showed the flooded direct seeder provided with the feeding apparatus which concerns on 1st embodiment of this invention. The side sectional view showing the feeding device concerning a first embodiment of the present invention. The disassembled rear view which showed the internal structure of the feeding apparatus which concerns on 1st embodiment of this invention. The exploded front view showing the internal structure of the feeding device concerning a first embodiment of the present invention. The side sectional view showing the feeding device concerning a first embodiment of the present invention. Side surface sectional drawing which showed the feeding apparatus which concerns on 2nd embodiment of this invention. The partially expanded side surface sectional view which showed the feeding apparatus which concerns on 2nd embodiment of this invention. The disassembled rear view which showed the internal structure of the feeding apparatus which concerns on 2nd embodiment of this invention. The disassembled front view which showed the internal structure of the feeding apparatus which concerns on 2nd embodiment of this invention.

  Next, a granular material feeding device (hereinafter referred to as “feeding device”) 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6.

The feeding device 50 feeds the granular material every predetermined amount.
The feeding device 50 is provided, for example, in a drug spraying device 16 that sprays granular drug (granular material), a seeding device 40 that seeds granular seed (granular material), and the like.
In the following description, it is assumed that the granular material fed from the feeding device is granular seeds, and the feeding device is provided in the seeding device and feeds the granular seeds.

An overall configuration of the traveling machine body 1 to which the seeding device 40 (the flooded direct seeder 19) including the feeding device 50 is mounted will be described with reference to FIG.
As shown in FIG. 1, the traveling machine body 1 includes a traveling unit 10 and an elevating link mechanism 20.
A flooded direct sowing machine 19 is attached to the rear part of the traveling machine body 1 through an elevating link mechanism 20. A fertilizer applicator 17 is mounted on the rear part of the traveling unit 10 in the traveling machine body 1, and a medicine spraying device 16 is mounted on the rear part of the flooded direct seeder 19.

In the traveling unit 10, the engine 2 is provided at the front of the aircraft. The engine 2 of the traveling unit 10 is covered with a bonnet 4. In the traveling unit 10, the transmission case is supported by the front part of the airframe and disposed below the engine 2.
In the traveling unit 10, the front axle case 5 is supported by the front part of the airframe, and the front wheels 6 are supported on the left and right sides of the front axle case 5. In the traveling unit 10, the rear axle case 7 is supported on the rear part of the fuselage, and the rear wheels 8 are supported on the left and right sides of the rear axle case 7.

The traveling unit 10 is configured such that the power of the engine 2 is transmitted to the left and right front wheels 6 and the left and right rear wheels 8 through the transmission case, respectively, so that the front wheels 6 and the rear wheels 8 are rotationally driven. Is done.
In this way, the traveling machine body 1 can travel forward or backward.

  In the traveling unit 10, a driving operation device 11 is provided in the middle part before and after the aircraft. An annular steering handle 12 for steering operation, various operation pedals 13, a dashboard 14, and the like are disposed in front of the driving operation device 11 of the traveling unit 10. A driver's seat 15 is disposed behind the steering handle 12 at the rear of the driving operation device 11 of the traveling unit 10. On the dashboard 14 of the traveling unit 10, various operating tools and display devices are arranged in addition to the steering handle 12.

  The elevating link mechanism 20 includes a pair of left and right upper links 21 and 21, a pair of left and right lower links 22 and 22, a rotating arm 25, a hydraulic cylinder 26, and the like.

The pair of upper links 21 and 21 of the elevating link mechanism 20 are provided in parallel to each other with an interval in the left-right direction. One end portions (front end portions) of the upper links 21 and 21 of the elevating link mechanism 20 are supported by the rear portion of the machine body so as to be rotatable in the vertical direction with the shaft member 23 as a fulcrum. The other ends (rear ends) of the upper links 21 and 21 of the lifting link mechanism 20 are attached to the front end of the flooded direct sowing machine 19.
The pair of lower links 22 and 22 of the elevating link mechanism 20 are provided in parallel to each other with an interval in the left-right direction. One end portions (front end portions) of the lower links 22 and 22 of the elevating link mechanism 20 are supported by the rear portion of the machine body so as to be rotatable in the vertical direction with the shaft member 24 as a fulcrum. The other end portions (rear end portions) of the lower links 22 and 22 of the elevating link mechanism 20 are attached to the front end portion of the flooded direct seeder 19.

The rotary arm 25 of the elevating link mechanism 20 is a rod-shaped member, and one end (lower end) thereof is fixed between the lower links 22 and 22.
The hydraulic cylinder 26 of the lifting / lowering link mechanism 20 is an actuator for lifting and lowering the flooded direct seeder 19 mounted on the rear part of the machine body. One end of the hydraulic cylinder 26 of the lift link mechanism 20 is connected to the other end (upper end) of the rotary arm 25. The other end of the hydraulic cylinder 26 of the lift link mechanism 20 is connected to the airframe.
And the raising / lowering link mechanism 20 of the traveling body 1 rotates the rotary arm 25, the upper links 21 and 21 and the lower links 22 and 22 by extending and contracting the hydraulic cylinder 26, and the flooded direct seeding machine 19 is rotated. Is configured to move up and down.

The flooded direct sowing machine 19 directly seeds paddy rice seeds in a paddy field with water, and includes a sowing frame, a float 18 attached to the sowing frame, a marker 27, a sowing apparatus 40, and the like.
The float 18 of the flooded direct seeder 19 includes a center float, a side float, and the like, and supports the seeding device 40 so as not to sink in the mud. The marker 27 of the flooded direct sowing machine 19 is supported on the left and right sides of the sowing frame so that it can be rotated up and down, and is used to put a mark on the rice field when seeding the next strip by turning around the headland. is there. A plurality of seeding devices 40 of the flooded direct seeder 19 are arranged side by side in the left-right direction.

The seeding device 40 of the flooded direct seeder 19 is for seeding granular seeds. As shown in FIG. 2, a hopper 41 in which granular seeds (particulate matter) are stored, and the seeds stored in the hopper 41. And a feeding device 50 for feeding out.
The seeding device 40 is configured such that a feeding device 50 is disposed at the lower end of the hopper 41 and a cylindrical body 42 is provided at the lower end of the feeding device 50. The seeding device 40 is configured to discharge the seeds fed by the feeding device 50 from the opening at the lower end of the cylindrical body 42 and sow the seeds.

The feeding device 50 of the seeding device 40 is a device that feeds seeds at predetermined amounts so as to seed seeds, and a plurality of (for example, eight) seeds are arranged side by side in the horizontal direction.
As shown in FIGS. 3 to 5, the feeding device 50 of the seeding device 40 includes a case 51, an eye plate driving shaft 52, a spacer 53, an eye plate 60, and an feeding plate 55.

The case 51 of the feeding device 50 in the seeding device 40 is mainly composed of an upper case 51a and a lower case 51b, and the upper case 51a and the lower case 51b are vertically arranged to form a substantially cylindrical shape as a whole.
In the case 51 of the feeding device 50, a scale driving shaft 52, a spacer 53, a scale 60, and a feeding plate 55 are arranged. Further, the case 51 of the feeding device 50 is provided with an eye plate driving shaft 52, a spacer 53, and an eye plate 60 so that the respective axes are aligned.

An eye plate drive shaft 52 of the feeding device 50 in the seeding device 40 is for rotating the eye plate 60, and is arranged in the case 51 so that its axis is tilted forward, backward, and downward.
A bevel gear is provided on the top of the eyepiece drive shaft 52 of the feeding device 50. The eyepiece drive shaft 52 of the feeding device 50 is engaged with the bevel gear by the bevel gear provided on the rotary shaft 43 penetrating into the upper case 51a from the upper side of the upper case 51a. The rotational power is configured to be transmitted to the eye plate drive shaft 52. In this way, the eyepiece driving shaft 52 of the feeding device 50 is configured to rotate in the circumferential direction with respect to the axial direction of the eyeglass driving shaft 52 as the rotating shaft 43 rotates.
The rotating shaft 43 of the seeding device 40 is horizontally installed so as to be horizontally inserted in the upper case 51a of the feeding device 50 of the plurality of seeding devices 40 (see FIG. 2), and is input to the mission case. The power from the engine 2 is transmitted to each of the plurality of feeding devices 50.

The spacer 53 of the feeding device 50 in the seeding device 40 is a member formed in a substantially annular shape, and is disposed in the case 51 above the eye plate 60.
The spacer 53 of the feeding device 50 has an annular protrusion 53a formed so as to protrude downward from the inner peripheral side of the lower surface thereof.
The spacer 53 of the feeding device 50 is configured such that an engagement groove 53b that can be engaged with an engagement protrusion formed in the upper case 51a is formed on the outer peripheral surface thereof.
The spacer 53 of the feeding device 50 is fixed to the upper case 51a by engaging the engaging groove 53b with the engaging protrusion of the upper case 51a. In this way, the spacer 53 of the feeding device 50 is configured not to move in the vertical direction (axial direction of the spacer 53) in the upper case 51a and positioned so as not to rotate in the circumferential direction of the spacer 53. Is done.

The eye plate 60 of the feeding device 50 in the seeding device 40 is a substantially disk-shaped member, and is disposed between the spacer 53 and the feeding plate 55 in the case 51. The eye plate 60 of the feeding device 50 is disposed below the spacer 53 so that the peripheral edge portion of the upper surface of the eye plate 60 contacts the lower surface (projecting portion 53a) of the spacer 53.
The eye plate 60 of the feeding device 50 is fixed to the drive shaft 52 at the center thereof, and is configured to rotate integrally with the eye plate drive shaft 52 when the eye plate drive shaft 52 rotates. At this time, the eye plate 60 of the feeding device 50 is configured to rotate in the circumferential direction of the eye plate 60 with the axis of the eye plate 60 as a rotation axis.

The eye plate 60 of the feeding device 50 in the seeding device 40 has an eye plate hole 61.
The eye plate hole 61 of the eye plate 60 of the feeding device 50 is a part where the seed is temporarily stored when the seed stored in the hopper 41 is fed.
The eye plate hole 61 of the eye plate 60 of the feeding device 50 is formed in a radially intermediate portion of the eye plate 60 so as to penetrate from the upper surface to the lower surface of the eye plate 60. The eye plate hole 61 of the eye plate 60 of the feeding device 50 has the eye plate 60 disposed below the spacer 53 so that the axis of the eye plate 60 and the axis of the spacer 53 are aligned. The opening above the hole 61 is formed so as to be located on the inner side (axial side) than the inner peripheral surface of the spacer 53.
A plurality of eye plate holes 61 of the eye plate 60 of the feeding device 50 are arranged. In the feeding device 50, the eight eye plate holes 61, 61,... Are evenly arranged in the circumferential direction around the axis of the eye plate 60. The countersunk holes 61 of the countersink 60 in the feeding device 50 are provided on the concentric circles at equal angles. The number of the countersink holes 61 of the countersink 60 of the feeding device 50 is not limited.
The feeding device 50 is configured such that the volume of the eye plate hole 61 of the eye plate 60 can be increased or decreased.

The feeding plate 55 of the feeding device 50 in the seeding device 40 is a member of a substantially disk-like member, and is disposed below the eye plate 60 so that the upper surface of the feeding plate 55 contacts the lower surface of the eye plate 60.
The feeding plate 55 of the feeding device 50 is arranged in the lower case 51b so that it does not rotate following the rotation of the eye plate driving shaft 52 and the eye plate 60. In the feeding plate 55 of the feeding device 50, the axis of the feeding plate 55 and the axis of the eye plate 60 are arranged on the same axis. The feeding plate 55 of the feeding device 50 is configured to be movable in the axial direction of the eye plate 60.

The feeding plate 55 of the feeding device 50 in the seeding device 40 has a feeding outlet 55a and a central hole 55b.
The feeding port 55a of the feeding plate 55 of the feeding device 50 is a part where seeds accumulated in the eye plate hole 61 of the eye plate 60 fall from the eye plate hole 61 and are delivered.
The feeding port 55a of the feeding plate 55 of the feeding device 50 is formed such that a front portion of the feeding plate 55 is notched in a concave shape from the outer peripheral end of the feeding plate 55 to the middle in the radial direction. . The feeding port 55a of the feeding plate 55 of the feeding device 50 is a state in which the feeding plate 55 is arranged below the eye plate 60 so that the axis of the feeding plate 55 and the axis of the eye plate 60 are aligned. It is formed so as to be cut out to the inner side (center side) from the rotation trajectory of the eye plate hole 61 when the plate 60 rotates.
The central hole 55b of the feeding plate 55 of the feeding device 50 is formed in the central portion of the feeding plate 55 so as to penetrate from the upper surface to the lower surface.

In the feeding device 50 of the seeding device 40 configured as described above, when the eye plate 60 rotates and the eye plate hole 61 of the eye plate 60 is positioned rearward, the seeds dropped from the hopper 41 are transferred to the eye plate 60. It is configured to be supplied from an upper opening in the eye plate hole 61 and stored in the eye plate hole 61. At this time, the lower opening other than the front in the eye plate hole 61 of the eye plate 60 of the feeding device 50 is closed by the feeding plate 55.
Then, when the eye plate 60 further rotates and the eye plate hole 61 of the eye plate 60 is located above the wire outlet 55a of the feed plate 55 (the eye plate hole 61 is located forward), The eye plate hole 61 of the plate 60 communicates with the feed port 55a of the feed plate 55, and the seeds accumulated in the eye plate hole 61 of the plate 60 fall downward and are fed from the feed port 55a of the feed plate 55. Configured to be In the feeding device 50, the space above the feeding plate 55 in the upper case 51a is closed by a partition wall or the like so that seeds do not enter the space on the front side from the space on the rear side. The hopper 41 is configured to communicate with the hopper 41.
The feeding device 50 is configured to feed seeds by seeding every predetermined amount by repeating such an operation.

Next, a configuration in which the feeding device 50 of the seeding device 40 can increase or decrease the volume of the eye plate hole 61 of the eye plate 60 will be specifically described.
The eye plate 60 of the feeding device 50 includes an upper eye plate 70 and a lower eye plate 80, as shown in FIGS.

The upper eye plate 70 of the feeding device 50 in the seeding device 40 is a substantially disk-shaped member, and is positioned above the lower eye plate 80 so as to coincide with the axis of the upper eye plate 70 and the axis of the lower eye plate 80. Be placed. The upper eye plate 70 of the feeding device 50 is disposed below the spacer 53 so that the peripheral edge portion of the upper surface of the upper eye plate 70 is in contact with the lower surface (projecting portion 53a) of the spacer 53.
The upper eye plate 70 of the feeding device 50 includes a convex portion 71, a central hole 72, a protruding portion 73, an upper eye plate hole 74, and a lower guide 75.

The convex portion 71 of the upper eye plate 70 of the feeding device 50 in the seeding device 40 is formed so as to protrude upward in a cylindrical shape from the center portion of the upper surface of the upper eye plate 70.
The center hole 72 of the upper eye plate 70 in the feeding device 50 is formed in the central portion of the convex portion 71 (the central portion of the upper eye plate 70) so as to penetrate from the upper surface of the convex portion 71 to the lower surface of the upper eye plate 70. The The center hole 72 of the upper plate 70 in the feeding device 50 is configured so that the lower part of the plate drive shaft 52 can be inserted. The upper eye plate 70 in the feeding device 50 is fixed to the eye plate driving shaft 52 by inserting the lower part of the eye plate driving shaft 52 into the central hole 72 of the upper eye plate 70, and the eye plate driving shaft 52 rotates. Then, it is configured to rotate integrally with the eyepiece drive shaft 52.

The protruding portion 73 of the upper eye plate 70 of the feeding device 50 in the seeding device 40 protrudes downward (in the axial direction of the upper eye plate 70) from the lower surface of the upper eye plate 70 in the radially intermediate portion of the upper eye plate 70. Formed as follows. The protrusion 73 of the upper pan 70 in the feeding device 50 is formed in a cylindrical shape.
The protrusion 73 of the upper eye plate 70 in the feeding device 50 is formed so as to be insertable from above the lower eye plate hole 84 of the lower eye plate 80 into the lower eye plate hole 84 of the lower eye plate 80. The protrusion 73 of the upper eye plate 70 in the feeding device 50 is formed in alignment with the lower eye plate hole 84 of the lower eye plate 80. The protrusion 73 of the upper eye plate 70 of the feeding device 50 is formed so that the outer diameter of the protrusion 73 is substantially the same as the inner diameter of the lower eye plate hole 84 of the lower eye plate 80. It is formed to be slidable with no gap between the outer surface and the inner surface of the lower eye plate hole 84 of the lower eye plate 80.
A plurality of protrusions 73 of the upper plate 70 in the feeding device 50 are arranged. In the feeding device 50, the eight protruding portions 73, 73,... Are evenly arranged in the circumferential direction around the axis of the upper eye plate 70.

The upper eye plate hole 74 of the upper eye plate 70 of the feeding device 50 in the seeding device 40 is formed so as to penetrate the upper eye plate 70 through the protrusion 73. The upper eye plate hole 74 of the upper eye plate 70 in the feeding device 50 extends in the protruding direction of the protruding portion 73 from the upper surface of the upper eye plate 70 along the axial direction of the protruding portion 73 (the direction in which the protruding portion 73 protrudes). It is formed so as to penetrate the tip (the lower surface of the protrusion 73). The upper eye plate hole 74 of the upper eye plate 70 in the feeding device 50 is formed in a cylindrical shape. The upper eye plate hole 74 of the upper eye plate 70 in the feeding device 50 has the upper eye plate 70 disposed below the spacer 53 so that the axis of the upper eye plate 70 and the axis of the spacer 53 coincide with each other. In this state, the upper opening of the upper countersink hole 74 is formed so as to be located on the inner side (center side) than the inner peripheral surface of the spacer 53.
The upper eye plate hole 74 of the upper eye plate 70 in the feeding device 50 is formed in a divergent shape (tapered shape) in the protruding direction of the protruding portion 73. The upper eye plate hole 74 of the upper eye plate hole 70 in the feeding device 50 is such that the taper angle of the lower opening portion of the upper eye plate hole 74 is a portion other than the lower opening portion of the upper eye plate hole 74 (upper eye plate hole). 74 is formed so as to be larger than the taper angle of the upper portion of the lower opening 74.
A plurality of upper plate holes 74 in the upper plate 70 in the feeding device 50 are arranged. In the feeding device 50, the eight upper eye plate holes 74, 74... Are evenly arranged in the circumferential direction around the axis of the upper eye plate 70.

  The lower guide 75 of the upper eye plate 70 of the feeding device 50 in the seeding device 40 is formed in an annular shape so as to protrude downward from the entire peripheral edge of the lower surface of the upper eye plate 70.

  The lower eye plate 80 of the feeding device 50 in the seeding device 40 is a substantially disk-shaped member whose outer diameter is smaller than the inner diameter of the lower guide 75 of the upper eye plate 70. The lower eye plate 80 of the feeding device 50 has a length in the thickness direction (length in the axial direction) that is substantially the same as the length in the axial direction of the protrusion 73 of the upper eye plate 70.

The lower eye plate 80 of the feeding device 50 in the seeding device 40 is disposed below the spacer 53 and the upper eye plate 70 so that the axial centers of the spacer 53 and the upper eye plate 70 coincide with the axis of the lower eye plate 80. Is done.
The lower eye plate 80 of the feeding device 50 is disposed above the feeding plate 55 so that the lower surface of the lower eye plate 80 contacts the upper surface of the feeding plate 55. The lower eye plate 80 and the feeding plate 55 of the feeding device 50 are arranged in the vertical direction (upper eye plate 70 in a state where the lower eye plate 80 and the feeding plate 55 are integrally held in the case 51 in parallel with the upper eye plate 70. And the axial direction of the lower eye plate 80).
The lower eye plate 80 of the feeding device 50 includes a convex portion 81, a center hole 82, a groove portion 83, and a lower eye plate hole 84.

The convex portion 81 of the lower eye plate 80 of the feeding device 50 in the seeding device 40 is formed so as to protrude downward from the central portion of the lower surface of the lower eye plate 80.
The central hole 82 of the lower eye plate 80 in the feeding device 50 is formed in the central portion of the convex portion 81 (the central portion of the lower eye plate 80) so as to penetrate from the upper surface of the convex portion 81 to the lower surface of the lower eye plate 80. The The center hole 82 of the lower eye plate 80 in the feeding device 50 is formed so that its inner diameter is larger than the outer diameter of the lower part of the eye plate driving shaft 52 so that the lower part of the eye plate driving shaft 52 can be inserted. The lower eye plate 80 in the feeding device 50 can move in the vertical direction (the axial center direction of the lower eye plate 80) with the lower part of the eye plate driving shaft 52 inserted in the central hole 82 of the lower eye plate 80. Configured.

  The groove portion 83 of the lower eye plate 80 of the feeding device 50 in the seeding device 40 is an annular groove, and is located at the center of the upper surface of the lower eye plate 80 (the position corresponding to the portion where the convex portion 71 is formed on the lower surface). The upper part is released and the outer side of the central hole 82 is surrounded.

The lower eye plate hole 84 of the lower eye plate 80 of the feeding device 50 in the seeding device 40 is from the upper surface of the lower eye plate 80 to the lower surface (in the axial direction of the lower eye plate 80) in the middle part of the lower eye plate 80 in the radial direction. Along). The lower eye plate hole 84 of the lower eye plate 80 in the feeding device 50 is formed in a cylindrical shape. The lower eye plate hole 84 of the lower eye plate 80 in the feeding device 50 is formed so that the protrusion 73 of the upper eye plate 70 can be inserted. The lower eye plate hole 84 of the lower eye plate 80 in the feeding device 50 is configured so that the length in the axial direction is substantially the same as the length in the axial direction of the protrusion 73 of the upper eye plate 70.
The lower eye plate hole 84 of the lower eye plate 80 in the feeding device 50 has a lower eye plate 80 below the upper eye plate 70 so that the axis of the lower eye plate 80 and the axis of the upper eye plate 70 coincide with each other. Is disposed at a position corresponding to a position where the protrusion 73 (upper eye dish hole 74) of the upper eye dish 70 is formed (below the protrusion 73 of the upper eye dish 70). In the lower eye plate hole 84 of the lower eye plate 80 in the feeding device 50, the lower eye plate 80 is disposed below the spacer 53 so that the axis of the lower eye plate 80 and the axis of the spacer 53 coincide with each other. In this state, the opening above the lower eye plate hole 84 is formed so as to be located on the inner side (axial center side) than the inner peripheral surface of the spacer 53.
A plurality of lower eye plate holes 84 in the lower eye plate 80 in the feeding device 50 are arranged. In the feeding device 50, the eight lower eye tray holes 84, 84... Are evenly arranged in the circumferential direction around the axis of the lower eye plate 80.

Each protrusion 73 of the upper eye plate 70 is inserted into each lower eye plate hole 84 of the lower eye plate hole 80 of the feeding device 50 in the seeding device 40 from an opening above each lower eye plate hole 84.
In the feeding device 50, the upper eye plate hole 74 of the upper eye plate 70 and the lower eye plate hole 84 of the lower eye plate 80 constitute the eye plate hole 61 of the eye plate 60. The upper eye plate hole 74 of the upper eye plate 70 in the feeding device 50 and the lower eye plate hole 84 of the lower eye plate 80 where the protrusion 73 of the upper eye plate 70 is not inserted (the lower eye plate hole 84 is exposed). And an eye plate hole 61 of the eye plate 60 is formed.

In the lower eye plate 80 of the feeding device 50 in the seeding device 40, the eye plate drive shaft 52 rotates in a state where the projections 73 of the upper eye plate 70 are inserted into the lower eye plate holes 84 of the lower eye plate 80, respectively. Then, it is configured to rotate integrally with the eyepiece driving shaft 52 and the upper eyepiece 70.
The lower eye plate 80 in the feeding device 50 is in a state where each protrusion 73 (at least a part of the protrusion 73) of the upper eye plate 70 is inserted into each lower eye plate hole 84 of the lower eye plate 80. The protrusion 73 of the upper plate 70 is configured to be slidable (movable) in the vertical direction (in the axial direction of the upper plate 70 and the lower plate 80) in the lower plate hole 84 of the plate 80.

  The feeding device 50 in the seeding device 40 includes an elastic member 56 and a position changing unit 90.

The elastic member 56 of the feeding device 50 in the seeding device 40 is configured by a coiled spring.
The elastic member 56 of the feeding device 50 has its upper end abutted against the lower surface of the upper plate 70, its lower end stored in the groove 83 of the lower plate 80, and its lower end against the bottom of the groove 83. It arrange | positions between the upper eye plate 70 and the lower eye plate 80 so that it may contact | connect (refer FIG. 3).
The elastic member 56 of the feeding device 50 urges the lower eye plate 80 and the feeding plate 55 downward in the state of being arranged in this way.

The position changing means 90 of the feeding device 50 in the seeding device 40 moves the feeding plate 55 and the lower eye plate 80 in the axial direction of the lower eye plate 80 so that the positions of the feeding plate 55 and the lower eye plate 80 can be changed. Composed.
The position changing means 90 of the feeding device 50 includes a moving unit 91 and an operating unit 92, and is configured to be able to press the feeding plate 55 from below by operating the operating unit 92 and moving the moving unit 91.

The moving portion 91 of the position changing means 90 of the feeding device 50 in the seeding device 40 is configured to be movable in the axial direction of the lower eye plate 80.
The moving part 91 of the position changing means 90 in the feeding device 50 includes a pair of left and right pressing plates 93, a cam contact member 94, and a pair of front and rear support members 95.
The pressing plate 93 of the moving unit 91 of the position changing unit 90 in the feeding device 50 is a plate-like member formed in a substantially V shape in a side view.
The cam contact member 94 of the moving portion 91 of the position changing means 90 in the feeding device 50 is a rod-like member, and is arranged so as to span horizontally between the lower end portions of the pressing plate 93.
The support member 95 of the moving portion 91 of the position changing means 90 in the feeding device 50 is a rod-like member, spanned between the pressing plates 93 so as to support the pressing plate 93, and before and after the cam contact member 94. Each is arranged.
The moving portion 91 of the position changing means 90 in the feeding device 50 is disposed below the feeding plate 55 so that the two upper ends of the V-shape of the pressing plate 93 are in contact with the lower surface of the feeding plate 55. . Note that guide grooves (not shown) are formed in the lower case 51b on both the left and right sides of the position changing means 90 in the feeding device 50 so that the moving part 91 can move up and down in parallel.

The operation unit 92 of the position changing unit 90 of the feeding device 50 in the seeding device 40 is arranged below the moving unit 91 and configured to move the moving unit 91 by operating the operating unit 92.
The operation unit 92 of the position changing unit 90 in the feeding device 50 includes a shaft member 96, a cam member 97, and an operation lever 98.
The shaft member 96 of the operation portion 92 of the position changing means 90 in the feeding device 50 is a rod-like member, and is configured such that both sides thereof are horizontally supported by the case 51 so as to be rotatable.
The cam member 97 of the operation portion 92 of the position changing means 90 in the feeding device 50 is formed in a substantially elliptical shape, and is fixed to the shaft member 96 at a position eccentric in the case 51, and is attached to the cam contact member 94 of the moving portion 91. It arrange | positions so that it may contact | abut.
The operation lever 98 of the operation unit 92 of the position changing unit 90 in the feeding device 50 is fixed to the shaft member 96 outside the case 51.

Then, the position changing means 90 of the feeding device 50 in the seeding device 40 rotates the shaft lever 96 and the cam member 97 by rotating the operation lever 98 of the operation portion 92, thereby moving the moving portion 91 of the cam member 97. The contact position with respect to the cam contact member 94 is changed, and the moving portion 91 is configured to move upward in the axial direction of the lower eye plate 80 or downward in the axial direction of the lower eye plate 80.
The position changing means 90 of the feeding device 50 moves the moving portion 91 upward (upward in the axial direction of the lower eye plate 80) and presses the feeding plate 55 from below (presses the lower surface of the feeding plate 55). The feeding plate 55 and the lower eye plate 80 are configured to move upward against the urging force of the elastic member 56.
The position changing means 90 of the feeding device 50 moves the moving portion 91 downward (downward in the axial direction of the lower eye plate 80) to release the pressure on the feeding plate 55, whereby the feeding plate 55 and the lower eye plate 80 are moved. Is configured to move downward. At this time, the feeding plate 55 and the lower eye plate 80 of the feeding device 50 move downward according to the urging force of the elastic member 56.
In this way, the position changing means 90 of the feeding device 50 is configured to be able to change the positions of the feeding plate 55 and the lower eye plate 80.

The feeding device 50 in the seeding device 40 moves the feeding plate 55 and the lower eye plate 80 as described above to change the insertion position of the lower eye plate 80 in the lower eye plate hole 84 in the protrusion 73 of the upper eye plate 70. By doing so, it is comprised so that the volume of the eye plate hole 61 of the eye plate 60 can be increased / decreased.
When the lower eye plate 80 in the feeding device 50 is moved downward (opposite to the upper eye plate 70 side) and the insertion position of the lower eye plate 80 into the lower eye plate hole 84 in the projecting portion 73 of the upper eye plate 70 is changed. The volume of the lower eye plate hole 84 where the protrusion 73 of the upper eye plate 70 is not inserted is increased (the axial length of the eye plate hole 61 of the eye plate 60 is longer). The volume of the eye plate hole 61 of the eye plate 60 increases (see FIG. 3).
Further, when the lower eye plate 80 in the feeding device 50 is moved upward (upper eye plate 70 side) and the insertion position of the lower eye plate 80 in the lower eye plate hole 84 in the projecting portion 73 of the upper eye plate 70 is changed, The volume of the portion of the lower eye plate hole 84 where the protrusion 73 of the upper eye plate 70 is not inserted is reduced (the length in the axial direction of the eye plate hole 61 of the eye plate 60 is reduced). The volume of the eye plate hole 61 of the eye plate 60 decreases (see FIG. 6).

  In this manner, in the feeding device 50 in the seeding device 40, the volume of the eye plate hole 61 of the eye plate 60 is increased or decreased, and the amount of seed (granular material) stored in the eye plate hole 61 of the eye plate 60 is increased or decreased. It is possible to increase or decrease the amount of seed (granular material) for each feeding unit fed by the feeding device 50.

Further, in the feeding device 50 in the seeding device 40, the upper eye plate 70 includes a protruding portion 73 protruding from the lower surface of the upper eye plate 70 toward the lower eye plate 80, and a protruding direction of the protruding portion 73 from the upper surface of the upper eye plate 70. And an upper countersink hole 74 formed so as to penetrate the tip of the projection (the lower surface of the protrusion 73). The lower eye plate 80 of the feeding device 50 has a lower eye plate hole 84 into which the protrusion 73 of the upper eye plate 70 is inserted.
For this reason, in the feeding device 50, from above the upper eye plate 70, between the upper eye plate hole 74 of the upper eye plate 70 and the lower eye plate hole 84 of the lower eye plate 80 (of the protrusion 73 of the upper eye plate 70. Preventing foreign matter (for example, seed dust, iron powder from iron-coated seeds, or dust such as drug pieces) from entering between the outer surface and the inner surface of the lower eye plate hole 84 of the lower eye plate 80 Can do.
Therefore, according to the feeding device 50, the volume of the eye plate hole 61 of the eye plate 60 by the entry of impurities between the upper eye plate hole 74 of the upper eye plate 70 and the lower eye plate hole 84 of the lower eye plate 80. Occurrence of a malfunction when increasing or decreasing the value (malfunction when changing the insertion position of the projection 73 of the upper eye dish 70 into the lower eye dish hole 84 of the lower eye dish 80) can be suppressed. .

Next, the feeding device 50 according to the second embodiment of the present invention will be described with reference to FIGS.
Note that in the description of the feeding device 50 according to the second embodiment, the same configuration as the feeding device 50 according to the first embodiment is omitted as appropriate, and the portion different from the configuration of the feeding device 50 according to the first embodiment. The explanation will be focused on.

  As shown in FIGS. 7 to 10, the spacer 53 of the feeding device 50 in the seeding device 40 is configured not to protrude downward (without the protruding portion 53 a) from the lower surface on the center side. The spacer 53 of the feeding device 50 is disposed above the upper eye plate 70.

The upper pan 70 of the feeding device 50 in the seeding device 40 has an upper protrusion 76.
The upper protruding portion 76 of the upper plate 70 in the feeding device 50 is formed so as to protrude upward (in the direction of the spacer 53) from the upper surface of the upper plate 70. The upper protruding portion 76 of the upper plate 70 in the feeding device 50 is formed so that the upper end position thereof is higher than the opening above the upper plate hole 74. The upper protruding portion 76 of the upper eye plate 70 in the feeding device 50 is disposed around the entire periphery of the upper surface of the upper eye plate 70 and is formed in an annular shape.
The upper protruding portion 76 of the upper eye plate 70 in the feeding device 50 is in a state where the upper eye plate 70 is disposed below the spacer 53 so that the axis of the upper eye plate 70 and the axis of the spacer 53 are aligned. , So as to be positioned below the spacer 53. The upper protruding portion 76 of the upper eye plate 70 in the feeding device 50 is disposed outside the upper opening of the upper eye plate hole 74 in the radial direction of the upper eye plate 70 (on the side opposite to the axial center side of the upper eye plate 70). Is done. The upper protruding portion 76 of the upper eye plate 70 in the feeding device 50 is arranged slightly inside the radial outer end of the upper eye plate 70 in the radial direction of the upper eye plate 70 (on the axial center side of the upper eye plate 70).
And since it has such an upper protrusion part 76, the upper eye plate 70 in the feeding apparatus 50 is arrange | positioned so that the space | interval may leave the upper surface of the upper eye plate 70, and the lower surface of the spacer 53. FIG.

The feeding device 50 in the seeding device 40 includes a shim 57.
The shim 57 of the feeding device 50 is a disk-shaped member made of a stainless steel material, and is disposed in the case 51 (upper case 51a).
The shim 57 of the feeding device 50 is formed so that the inner diameter of the shim 57 is substantially the same as the inner diameter of the spacer 53. The shim 57 of the feeding device 50 is formed so that the outer diameter of the shim 57 is substantially the same as the outer diameter of the upper protruding portion 76 of the upper eye plate 70.

The shim 57 of the feeding device 50 in the seeding device 40 is disposed between the spacer 53 and the upper dish 70.
The shim 57 of the feeding device 50 is disposed below the spacer 53 so that the axial center of the spacer 53 and the axial center of the shim 57 are aligned, and the upper surface of the shim 57 is in contact with the lower surface of the spacer 53.
The shim 57 of the feeding device 50 aligns the axis of the upper eye plate 70 with the axis of the shim 57 so that the lower surface of the shim 57 is in contact with the upper surface of the upper protruding portion 76 of the upper eye plate 70. It is arranged above the eye plate 70.

The shim 57 of the feeding device 50 in the seeding device 40 is not provided with the shim 57 due to the frictional force acting on the contact portion between the upper surface of the shim 57 and the lower surface of the spacer 53 when the upper eye plate 70 rotates. In the configuration (the configuration of the feeding device 50 of the first embodiment), the frictional force acting on the contact portion between the upper surface of the upper protruding portion 76 of the upper eye plate 70 and the lower surface of the spacer 53 when the upper eye plate 70 rotates. Is also configured to be smaller.
The shim 57 of the feeding device 50 has a configuration in which the feeding device 50 does not include the shim 57 due to the frictional force acting on the contact portion between the lower surface of the shim 57 and the upper eyeglass 70 when the upper eyeglass 70 rotates. In the configuration of the feeding device 50 according to the embodiment, the friction force acting on the contact portion between the upper surface of the upper protruding portion 76 of the upper eye plate 70 and the lower surface of the spacer 53 when the upper eye plate 70 rotates is made smaller. Configured.

In the shim 57 of the feeding device 50 in the seeding device 40, the frictional force of the contact portion between the upper surface of the shim 57 and the lower surface of the spacer 53 is larger than the friction force of the contact portion between the lower surface of the shim 57 and the upper eye plate 70. In a state where it is larger than a predetermined value, the upper eye plate 70 is configured not to rotate even if it rotates.
In the feeding device 50, for example, when a foreign substance enters between the upper surface of the shim 57 and the lower surface of the spacer 53, the frictional force of the contact portion between the upper surface of the shim 57 and the lower surface of the spacer 53 is reduced. And the frictional force at the contact portion with the upper plate 70 becomes larger.
In the shim 57 of the feeding device 50, the frictional force at the contact portion between the lower surface of the shim 57 and the upper plate 70 is larger than the friction force at the contact portion between the upper surface of the shim 57 and the lower surface of the spacer 53. In this state, the upper eye plate 70 is configured to rotate together with the upper eye plate 70 when the upper eye plate 70 rotates.
In the feeding device 50, for example, when foreign matter enters between the lower surface of the shim 57 and the upper plate 70, the frictional force of the contact portion between the lower surface of the shim 57 and the upper plate 70 is changed to the upper surface of the shim 57 and the spacer. It becomes large compared with the frictional force of the contact part with the lower surface of 53.

As described above, the shim 57 of the feeding device 50 in the seeding device 40 is disposed between the spacer 53 and the upper plate 70, and the frictional force of the contact portion between the upper surface of the shim 57 and the lower surface of the spacer 53 is shim. In a state where the friction force of the contact portion between the lower surface of the upper plate 57 and the upper plate 70 is larger than a predetermined value, the upper plate 70 is configured not to rotate even if the upper plate 70 rotates. In a state where the frictional force of the contact portion with the upper eye plate 70 is larger than the friction force of the contact portion between the upper surface of the shim 57 and the lower surface of the spacer 53, the upper eye plate 70 rotates when the upper eye plate 70 rotates. It is configured to rotate with the pan 70.
Therefore, according to the feeding device 50, in a state in which impurities enter between the upper eye plate 70 and the spacer 53 (between the upper eye plate 70 and the shim 57 or between the shim 57 and the spacer 53). When the upper eye plate 70 rotates, the upper eye plate 70 or the spacer 53 can be prevented from being damaged by the impurities.

Further, as described above, the upper eye plate 70 of the feeding device 50 in the seeding device 40 is formed so as to protrude upward (in the direction of the spacer 53) from the upper surface of the upper eye plate 70 and to be positioned below the spacer 53. The upper projecting portion 76 is disposed, and the upper surface of the upper plate 70 and the lower surface of the spacer 53 are spaced apart from each other.
For this reason, in the feeding device 50, the foreign matter on the upper surface side inside the upper protrusion portion 76 of the upper eye plate 70 flows out from the upper surface side of the upper eye plate 70 by the upper protrusion portion 76 of the upper eye plate 70. This prevents the foreign matter from entering between the upper eye plate 70 and the spacer 53 (between the upper eye plate 70 and the shim 57 or between the shim 57 and the spacer 53).
Therefore, according to the feeding device 50, the upper eye plate 70 is rotated in a state in which foreign matter enters between the upper eye plate 70 and the spacer 53, and the upper eye plate 70 or the spacer 53 is damaged by the foreign material. Can be suppressed.

The upper eye plate hole 74 of the upper eye plate 70 of the feeding device 50 in the seeding device 40 has a smaller taper angle than the upper eye plate hole 74 of the upper eye plate 70 in the feeding device 50 according to the first embodiment (the taper angle is smaller). To be very small). For example, the upper eye plate hole 74 of the upper eye plate 70 of the feeding device 50 in the seeding device 40 is formed so that its taper angle is 10 degrees or less.
The protrusion 73 of the upper plate 70 in the feeding device 50 is configured such that the wall portion of the protrusion 73 is thinner than the protrusion 73 of the upper plate 70 in the supply device 50 according to the first embodiment. Is done.
Since the upper eye plate hole 74 and the protruding portion 73 are configured in this manner, according to the feeding device 50, seeds (granular materials) are accumulated in the eye plate hole 61 of the eye plate 60. However, when the lower eye plate 80 is moved upward to change the insertion position of the protrusion 73 of the upper eye plate 70 into the lower eye plate hole 84 of the lower eye plate 80 (the volume of the eye plate hole 61 of the eye plate 60). Can be performed smoothly.

The protruding portion 73 of the upper pan 70 of the feeding device 50 in the seeding device 40 is configured such that the thickness of the wall portion at the tip (lower end) of the protruding portion 73 is smaller than the radius of the seed (granular material). .
Since the protrusion 73 of the upper eye plate 70 is configured in this way, according to the feeding device 50, the lower eye plate 80 in the protrusion 73 of the upper eye plate 70 is moved by moving the lower eye plate 80 upward. When the insertion position into the countersink hole 84 is changed, the seed (granular material) below the tip of the protrusion 73 of the upper eyeplate 70 is pushed by the protrusion 73, and the shaft center side of the upper eyelet hole 74 is changed. Will be moved to.
Therefore, according to the feeding device 50, when the lower eye plate 80 is moved upward to change the insertion position of the lower eye plate 80 into the lower eye plate hole 84 in the protrusion 73 of the upper eye plate 70, It is possible to prevent the seed (granular material) from being crushed between the tip of the protruding portion 73 of the dish 70 and the upper surface of the feeding plate 55 and being crushed.

The protrusion 73 of the upper pan 70 of the feeding device 50 in the seeding device 40 is configured such that the cross-sectional shape of the tip is formed in a pointed shape.
Since the protrusion 73 of the upper eye plate 70 is configured in this way, according to the feeding device 50, the lower eye plate 80 in the protrusion 73 of the upper eye plate 70 is moved by moving the lower eye plate 80 upward. When the insertion position into the countersunk hole 84 is changed, the foreign matter adhering to the lower countersunk hole 84 of the lower countersink 80 can be scraped off by the protrusion 73 of the upper countersink 70.

DESCRIPTION OF SYMBOLS 1 Traveling machine body 19 Submerged direct seeding machine 40 Seeding device 50 Feeding device 53 Spacer 55 Feeding plate 55a Feeding port 57 Shim 60 Eye plate 61 Eye plate hole 70 Upper eye plate 73 Protruding part 74 Upper eye plate hole 76 Upper projecting part 80 Lower eye Plate 84 Lower eye plate hole 90 Position change means

Furthermore, some of such granular material feeding devices are configured to be able to increase or decrease the volume of the eye plate hole of the eye plate so that the amount of the granular material to be fed can be changed.
As a granular material feeding device configured to increase or decrease the volume of the eye plate hole of the eye plate, for example, the eye plate includes an upper eye plate and a lower eye plate, and the lower eye plate is an upper surface of the lower eye plate. The upper eye plate has a protrusion protruding from the upper eye plate to the upper eye plate side and a lower eye plate hole formed so as to penetrate the protruding direction of the protrusion from the upper surface of the lower eye plate. Has a lower eye plate hole, and the upper eye plate hole of the upper eye plate and the lower eye plate hole of the lower eye plate constitute the eye plate hole of the eye plate. The feeding device of the granules, changeable configured the volume of the perforated plate of the perforated plate holes by changing the insertion position into the upward glance dish upward glance countersunk holes in the projecting portion of the lower second tray.

However, in such a granular material feeding device, foreign matters other than the granular material (for example, seed dust, iron powder from iron-coated seeds, or drug pieces, etc.) fall, and from above the upper plate, between the lower first countersink of the upward glance pan upward glance countersink and lower eyes dish (between the outer surface of the projecting portion of the inner surface and the lower second dish upward glance dish upward glance dish hole), the contaminants There was a risk of getting in.
In such a granular material feeding device, the foreign matter enters between the upper eye plate hole of the upper eye plate and the lower eye plate hole of the lower eye plate in this way, so that the upper portion of the lower eye plate protrudes. The operation when changing the insertion position of the eye plate into the lower eye plate hole cannot be performed smoothly, and there is a possibility that an operation failure occurs when the volume of the eye plate hole of the eye plate is increased or decreased.

That is, according to the first aspect, when the eye plate rotates and the eye plate hole of the eye plate communicates with the payout opening, the particulate matter accumulated in the eyepiece hole of the eye plate is drawn out from the payout opening. An apparatus for feeding granular material, wherein the eye plate includes an upper eye plate and a lower eye plate, and the upper eye plate is located on the lower eye plate side from the lower surface of the upper eye plate. And a top plate hole formed so as to penetrate from the upper surface of the upper plate to the tip in the protruding direction of the projection, the lower plate serving as the upper plate A lower eye plate hole into which the protruding portion of the upper eye plate is inserted, and the upper eye plate hole of the upper eye plate and the lower eye plate hole of the lower eye plate constitute the eye plate hole of the eye plate, it is intended to be changeable configure volume perforated plate holes of the eye plates by changing the insertion position to the lower second tray hole of the lower eye dish the projecting portion of the perforated plate.

The feeding plate 55 of the feeding device 50 in the seeding device 40 is a substantially disk-shaped member, and is arranged below the eye plate 60 so that the upper surface of the feeding plate 55 contacts the lower surface of the eye plate 60.
The feeding plate 55 of the feeding device 50 is disposed in the lower case 51b so as not to follow and rotate even if the eye plate driving shaft 52 and the eye plate 60 rotate . In the feeding plate 55 of the feeding device 50, the axis of the feeding plate 55 and the axis of the eye plate 60 are arranged on the same axis. The feeding plate 55 of the feeding device 50 is configured to be movable in the axial direction of the eye plate 60.

In the shim 57 of the feeding device 50 in the seeding device 40, the frictional force of the contact portion between the upper surface of the shim 57 and the lower surface of the spacer 53 is larger than the friction force of the contact portion between the lower surface of the shim 57 and the upper eye plate 70. In a state where it is larger than a predetermined value, the upper eye plate 70 is configured not to rotate even if it rotates.
In the feeding device 50, for example, when a foreign substance enters between the upper surface of the shim 57 and the lower surface of the spacer 53, the frictional force of the contact portion between the upper surface of the shim 57 and the lower surface of the spacer 53 is reduced. And the frictional force at the contact portion with the upper plate 70 becomes larger.
In the shim 57 of the feeding device 50, the frictional force at the contact portion between the lower surface of the shim 57 and the upper plate 70 is larger than the friction force at the contact portion between the upper surface of the shim 57 and the lower surface of the spacer 53. In this state, the upper eye plate 70 is configured to rotate together with the upper eye plate 70 when the upper eye plate 70 rotates .
In the feeding device 50, for example, when foreign matter enters between the lower surface of the shim 57 and the upper plate 70, the frictional force of the contact portion between the lower surface of the shim 57 and the upper plate 70 is changed to the upper surface of the shim 57 and the spacer. It becomes large compared with the frictional force of the contact part with the lower surface of 53.

As described above, the shim 57 of the feeding device 50 in the seeding device 40 is disposed between the spacer 53 and the upper plate 70, and the frictional force of the contact portion between the upper surface of the shim 57 and the lower surface of the spacer 53 is shim. In a state where the friction force of the contact portion between the lower surface of the upper plate 57 and the upper plate 70 is larger than a predetermined value, the upper plate 70 is configured not to rotate even if the upper plate 70 rotates. In a state where the frictional force of the contact portion with the upper eye plate 70 is larger than the friction force of the contact portion between the upper surface of the shim 57 and the lower surface of the spacer 53, the upper eye plate 70 rotates when the upper eye plate 70 rotates. It is configured to rotate with the pan 70.
Therefore, according to the feeding device 50, in a state in which impurities enter between the upper eye plate 70 and the spacer 53 (between the upper eye plate 70 and the shim 57 or between the shim 57 and the spacer 53). When the upper eye plate 70 rotates , the upper eye plate 70 or the spacer 53 can be prevented from being damaged by the impurities.

Claims (2)

The granular material is configured so that the granular material accumulated in the eye plate hole of the eye plate is fed out from the feeding port when the eye plate rotates and the eye plate hole of the eye plate communicates with the feeding port. A feeding device,
The eye plate comprises an upper eye plate and a lower eye plate,
The upper eye plate is formed so as to penetrate from the lower surface of the upper eye plate to the lower eye plate side, and the upper eye formed so as to penetrate from the upper surface of the upper eye plate to the tip of the protruding portion in the protruding direction. A countersink, and
The lower eye plate has a lower eye plate hole into which the protruding portion of the upper eye plate is inserted,
The upper eye plate hole of the upper eye plate and the lower eye plate hole of the lower eye plate constitute an eye plate hole of the eye plate,
The granular material feeding device configured to be able to increase or decrease the volume of the eye plate hole of the eye plate hole by changing the insertion position of the protrusion of the upper eye plate into the lower eye plate hole of the lower eye plate. The upper eye plate has an upper protrusion that protrudes upward from the upper surface of the upper eye plate and is formed so as to be positioned below a spacer disposed above the upper eye plate. The upper surface of the spacer and the lower surface of the spacer are arranged so as to be spaced apart from each other.
The granular material feeding device according to claim 1.

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