JP3337644B2 - Swing sorting plate of hulling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rocking sorter for a rice hulling apparatus, which removes a supplied paddy and removes it as brown rice.

[0002]

2. Description of the Related Art There is known a hulling apparatus for removing brown rice by subjecting supplied rice to dehulling processing.
-28882).

[0003] In such a hulling apparatus, a hulling unit for dehulling the supplied paddy, and hulled rice after dehulling in the hulling unit (brown rice and unhulled rice). And a sorting unit for sorting and extracting brown rice from the rice.

In the hulling unit, a pair of hulling rolls (rubber rolls) are arranged so as to face each other, and rotate at slightly different rotational speeds. By passing the paddy between the pair of hulling rolls, the paddy is rubbed and dehulled (so-called hulling is performed). On the other hand, in the sorting section, a plurality of swinging sorting plates are arranged three-dimensionally inclined. An infinite number of projections having a substantially triangular cross section are formed on the surface of the swing sorting plate, and the swing sorting plate swings (vibrates) right and left during the sorting process. The hulled rice (brown rice and unhulled unhulled rice) after the hulling process in the hulling unit is supplied on the swinging sorting plate in the sorting unit,
The left and right swinging (vibration) of the swinging sorting plate sorts into brown rice, paddy, and mixed rice in which these are mixed. Further, the brown rice selected from the hulled rice is taken out of the apparatus, the unhulled rice is returned to the hulling unit again, and the mixed rice in which both are mixed is supplied again to the swinging sorting plate. It has a configuration.

[0005] The technique of sorting rice crushed rice (oscillating sorter) using the oscillating sorting plate has already been proposed by the present applicant (Japanese Patent Publication No. 2-4349).

[0006] In the rice hulling apparatus having such a configuration, the supplied mixed rice must be oscillated and sorted in order to perform accurate (high accuracy) and speedy oscillating sorting of the mixed rice by the oscillating sorting plate. It must spread over the surface of the plate with a uniform and suitable layer thickness (thickness dimension). For this reason, the supply amount of the mixed rice supplied to the swing sorting plate is adjusted by changing the opening angle of the mixed rice supply shutter.

However, many years of experience and skill were required to determine whether or not the thickness of the mixed rice spreading on the surface of the oscillating sorting plate was appropriate. It is difficult for a general user to judge the suitability of the thickness of the mixed rice, and measures for this are desired.

[0008]

SUMMARY OF THE INVENTION In consideration of the above facts, the present invention makes it possible to easily judge whether or not the thickness of the mixed rice spreading on the surface of the rocking sorting plate is appropriate. It is an object to obtain a swing sorting plate of a hulling device that enables speedy swing sorting with (high accuracy).

[0009]

The swing sorting plate of the hulling device according to the first aspect of the present invention is applied to a hulling device for dehulling the supplied paddy, and is inclined and has a substantially cross-sectional surface. Innumerable protrusions of triangular shape are formed, and in the rocking sorter of the hulling device for sorting brown rice from the mixed rice after the de-sizing process ,
It is characterized in that it is provided with a layer thickness marker which is arranged opposite to the surface on which the protrusions are formed by a predetermined distance and recognizes the layer thickness of the mixed rice spreading on the surface.

[0010] The swing sorting plate according to the first aspect of the present invention is applied to a hulling device for removing the supplied paddy and is provided at an angle. Brown rice is separated from the mixed rice after the dehulling treatment by the rocking sorter.

Here, a layer thickness marker is opposed to the swing sorting plate at a predetermined distance from the surface on which the protrusions are formed. By engaging the mixed rice spreading on the surface of the swing sorting plate with this layer thickness marker, the layer thickness of the mixed rice can be recognized.

For example, if the mixed rice spread on the surface of the swing sorting plate is slightly in contact with the layer thickness marker, it can be determined that the mixed rice is in a suitable thickness state, while the mixed rice spread on the surface of the swing sorting plate. If the rice does not touch the layer thickness marker at all (the amount of mixed rice is too small) and the layer thickness marker is buried and cannot be seen (the state of mixed rice is too large), it can be determined that the state is unfriendly. .

Therefore, no experience or skill is required to determine whether or not the layer thickness of the mixed rice spreading on the surface of the swing sorting plate is in an appropriate state. Even a proper user can easily judge the suitability of the layer thickness of the mixed rice. This enables accurate (high accuracy) and speedy swing sorting of mixed rice.

According to a second aspect of the present invention, the swing sorting plate of the hulling device according to the first aspect,
The layer thickness marker has two upper and lower mark portions, and the lower mark portion is disposed at a separation dimension position corresponding to a preferable layer thickness of the mixed rice spreading on the surface of the swing sorting plate. The portion is disposed at a position higher than the lower mark portion by substantially one grain of mixed rice.

The layer thickness markers provided on the swing sorting plate of the rice hulling apparatus according to the second aspect are vertically arranged in two stages by a lower mark portion and an upper mark portion. The layer thickness of the mixed rice can be recognized by engaging the mixed rice spreading on the surface of the swing sorting plate with the lower mark portion and the upper mark portion.

For example, it is preferable that the mixed rice spreading on the surface of the rocking sorting plate is slightly in contact with the lower mark portion of the layer thickness marker, or that a single grain of mixed rice rides on the lower mark portion. It can be determined that the layer is in a proper thickness state. On the other hand, if the mixed rice spreading on the surface of the rocking sorting plate does not touch the lower mark of the layer thickness marker at all, it can be determined that the mixed rice is too small, and If the mixed rice rides, it can be determined that there is too much mixed rice, and in any case, it can be determined that the rice is in an unfriendly state.

Therefore, no experience or skill is required to determine whether or not the layer thickness of the mixed rice spreading on the surface of the rocking sorting plate is in an appropriate state. Even a proper user can more easily determine the suitability of the layer thickness of the mixed rice. This enables accurate (high accuracy) and speedy swing sorting of mixed rice.

[0018]

FIG. 1 is a sectional view showing the entire configuration of a hulling device 10 according to an embodiment of the present invention.
FIG. 2 schematically shows the entire configuration of the hulling device 10. FIG. 3 is an external perspective view of the hulling device 10.

The hulling device 10 is for removing the supplied hulling M and extracting it as brown rice G. The hulling unit 10 is entirely composed of a hulling unit 10A and a sorting unit 10B.

The hulling unit 10A is provided with a hulling supply hopper 12 which is open on the upper surface, so that the hulking M is supplied. The paddy supply hopper 12 has a tapered shape in which the opening is rectangular and gradually narrows toward the bottom. At the bottom of the paddy supply hopper 12, a rectangular supply port 1 is provided.
4 are provided, and the paddy M is sequentially supplied from the supply port 14
It flows into OA.

The supply port 14 is provided with a paddy supply shutter 16. This paddy supply shutter 16
It can be opened and closed by the driving force of a paddy supply motor (not shown).
2 is in the closed state when it is put into
Is supplied to the paddy supply hopper 12, and is controlled to be opened when the operation switch of the apparatus is operated.
Then, the opening degree of the paddy supply shutter 16 is controlled in accordance with a signal from a mixed rice sensor 66 disposed in a mixed rice tank 56 described later to limit the amount of the paddy M passing through the supply port 14. You can do it.

The paddy supply hopper 12 has a paddy sensor 1
8 is attached, and it can be detected whether or not the paddy M is present in the paddy supply hopper 12.

A hulling chamber 20 is provided below the supply port 14. In the hulling room 20, a pair of hulling rolls 22, 2
4 are provided. These pair of hulling rolls 22, 2
Numerals 4 are arranged so as to face each other and to have the tangent line at the closest position inclined upward to the right in FIG.
The rice M that has flowed into the hulling chamber 20 from the supply port 14 is guided to the closest position of the pair of hulling rolls 22 and 24. In addition, a pair of hulling rolls 22, 2
The standard clearance size of the closest position of 4 is 0.8 mm,
It can be adjusted in 1mm increments. This adjustment is adjusted by a roll interval adjusting motor (not shown).

The pair of hulling rolls 22 and 24 are rotated by transmitting the driving force of the main motor 120. In this case, the rotational speeds are slightly different from each other. That is, the hulling roll 22 located on the left side of FIG.
The hulling roll 24 located on the right side of FIG. For this reason, at the point of contact of the two closest positions, the relative rotation of each other occurs, and since the thickness of the rice M entering the closest position is larger than the gap size, the rice M is rubbed, so-called hulling (draining). Processing) is performed. In addition, the thing which the paddy M passed through a pair of hulling rolls 22 and 24, and was subjected to a dehulling process is called hulling rice S below. This hulled rice S is made up of a large amount of brown rice G that has escaped and a small amount of rice M that has not escaped.
And chaff N are mixed.

A diffusion plate 26 is provided on the side of the pair of hulling rolls 22 and 24 on the hulling rice discharge side. This diffusion plate 26
Has a role of diffusing the hulled rice S discharged from the pair of hulling rolls 22 and 24 from the near side to the far side of FIG.

The bottom wall 28 of the rice hulling chamber 20 is inclined downward, and the rice hulling rice S diffused by the diffusion plate 26.
Is guided downward while sliding on the bottom wall 28.

Below the hulling chamber 20, an air selection chamber 30 is provided. The air selection chamber 30 is provided with upper and lower air selection paths 34 and 36 by partition walls 32, and these air selection paths 34 and 36 communicate with a suction port 40 of a rice husk discharge blower 38. As a result, the hulled rice S guided to the wind selection chamber 30 has the rice husk N and pity T (immature grains, which are immature grains and almost no husks with little hull) sucked into the rice husk discharge blower 38. It is designed to be absorbed by force. The sucked rice hulls N are discharged to the outside through the exhaust duct unit 42.

A second grain gutter 44 is provided immediately below the lower wind selection path 36 and communicates with the lower wind selection path 36. The second grain trough 44 is provided along the front-back direction (depth direction) of the apparatus. As a result, since the pity T is heavier than the chaff N, the pity T is not sucked from the upper wind selection path 34 (does not climb up), and if it is slightly sucked up in the lower wind selection path 36, it cannot withstand this suction. And is guided by the second grain gutter 44.

At the bottom of the second grain gutter 44, a screw conveyor 46 is disposed, and the pity T in the second grain gutter 44 is collected and collected at one end (front side of the apparatus, near the paper in FIG. 1). You can do it. The screw conveyor 46 is rotated by the driving force of the main motor 120 being transmitted.

The first gutter 48 is provided below the wind selection chamber 30 having the above configuration. The first grain gutter 48 is formed by the bottom wall 37 of the wind selection chamber 30 on the side of the second grain gutter 44.
0 (the wind selection path 36), and the hulled rice S from which the chaff N and the pity T have been removed through the wind selection chamber 30 is guided. Hereinafter, the hulled rice S that has passed through the wind selection room 30 and from which the chaff N and the pity T have been removed is referred to as a mixed rice K. That is, this mixed rice K has a large amount of brown rice G and a small amount of paddy M
And are mixed.

The first gutter 48 is also provided in the front-rear direction (depth direction) of the apparatus, and a screw conveyor 50 is provided at the bottom thereof.

The screw conveyor 50 is divided into two parts in the axial direction (front side: rear side in FIG. 1: about 2: 8), and the directions of the screws are set so that the feed directions are opposite to each other. I have.

Here, the mixed rice K guided from the wind selection chamber 30 (bottom wall 37) falls on the screw on the back side in FIG. 1 and is conveyed to the back end of the apparatus. .

To the end of the screw conveyor 50 on the front side of the apparatus (on the front side of the paper in FIG. 1), a paddy return slotr 52 is connected. That is, of the screw conveyor 50,
The drop on the screw on the front side of the apparatus (on the front side of the paper surface of FIG. 1) is selected by the selection unit 10B described later and needs to be hulled again by the pair of hulling rolls 22 and 24.
The paddy M from the sorting unit 10B is sent. The paddy M from the sorting unit 10B that has fallen on the screw on the front side of the screw conveyor 50 is accumulated at the front end of the paper surface in FIG. 1, is repelled by the paddy return thrower 52, and is again upstream of the pair of hulling rolls 22 and 24. It is a configuration that is returned to the side.

The screw conveyer 50 and the paddy return thrower 52 are rotated by the driving force of the main motor 120 being transmitted.

On the other hand, a mixed rice raising / lowering machine 54 is connected to an end portion of the screw conveyor 50 on the inner side of the apparatus (on the inner side of FIG. 1). The mixed rice raising and lowering machine 54 is erected in the vertical direction, is guided from the air selection chamber 30, and is conveyed to the rear end of the apparatus by a screw of the screw conveyor 50 on the rear side of the apparatus (the rear side of the paper in FIG. 1). The mixed rice K is transported to the uppermost part of the hulling device 10 and sent to the mixed rice tank 56 located at the uppermost position of the hulling device 10.
It should be noted that the mixed rice elevator 54 also operates by transmitting the driving force of the main motor 120.

The mixed rice tank 56 is formed in a conical hopper shape, and is covered with a box-shaped casing 58. The mixed rice K lifted and conveyed by the mixed rice elevator 54 is accumulated in the mixed rice tank 56. An overflow pipe 60 is connected to a part of the side wall of the mixed rice tank 56. When a predetermined amount or more of the mixed rice K is accumulated in the mixed rice tank 56, a part of the mixed rice K is removed. Through the overflow pipe 60, it is returned to the upstream side of the pair of hulling rolls 22 and 24 in the hulling chamber 20.

A mixed rice supply shutter 64 is attached to the supply port 62 at the bottom of the mixed rice tank 56. The mixed rice supply shutter 64 can be opened and closed by the driving force of a mixed rice supply motor (not shown), and is operated by a signal from a mixed rice sensor 66 disposed in the mixed rice tank 56. When the mixed rice K in the mixed rice tank 56 is less than a predetermined amount, it is controlled to be closed, and when it is more than a predetermined amount, it is controlled to be opened. The opening of the mixed rice supply shutter 64 is set arbitrarily in advance, so that the amount of mixed rice K passing through the supply port 62 can be limited.

A sorting unit 1 is provided below the mixed rice tank 56.
0B is arranged, and the mixed rice K passed through the supply port 62
Are guided to the sorting unit 10B.

A distribution plate 68 is provided at the top of the sorting unit 10B. The distribution plate 68 is inclined toward one side of the device (downward to the right in FIG. 1), and has a surface on its right side with an infinite number of substantially stepped or substantially triangular shapes with the right side standing and the left side gently inclined. The projections are formed continuously. The distribution plate 68 is simultaneously swung when the sorting unit 10B is swung (vibrated) in the left-right direction in FIG. 1 as a whole, so that the mixed rice K dropped from the supply port 62 is pushed out on the right side of the projection. Thus, the light is scattered over the entire surface while gradually moving to the right in FIG. A leveling plate 70 is attached to the ceiling near the right end of the distribution plate 68, and serves to level the mixed rice K dropped on the distribution plate 68.

At the most downstream end (the right end in FIG. 1) of the distribution plate 68, there are provided six distribution gutters 72 along the front-rear direction of the apparatus (from the near side to the far side in FIG. 1). I have. These distribution gutters 72 are independently communicated with six swing sorting plates 74 which are stacked and arranged at predetermined intervals below the distribution plate 68, respectively. Can be equally distributed and supplied to the respective swing sorting plates 74.

The swing sorting plate 74 has one corner (FIG. 1).
(The right side and the back side of the fulcrum) as a fulcrum, the height of the corner on the diagonal of the corner is adjusted to be lower than the corner of the fulcrum, and the corner is three-dimensionally inclined. That is, in FIG. 1, the right side of the swing sorting plate 74 is high and the left side is inclined low, and the back side of the paper is high and the front side of the paper is low and inclined. And, on the entire surface of the swing sorting plate 74,
An infinite number of projections 73 having a substantially triangular cross section with a right side standing and a left side gently inclined are formed by embossing.
Thus, the mixed rice K distributed by the distribution gutter 72 is
Each falls near the corner portion which is the fulcrum. A rectangular flat plate 76 is provided near the corner. Thereby, the slip of the mixed rice K is improved, and the mixed rice K is promptly spread over the entire surface of the swing sorting plate 74.

Here, each swinging sorting plate 74 is connected to the sorting unit 10.
It is held by a guide rail 75 provided on the B frame 11. The guide rails 75 are provided along the front-rear direction of the frame 11, respectively.
Are held by sandwiching both edges in the width direction. In this case, the rear side of the device of the frame 11 is open, so that the swing sorting plate 74 can be inserted and removed along the guide rail 75 from the rear side of the device of the frame 11.

The rear end of the frame 11 is provided with a back cover 7.
7 are provided. The back cover 77 is provided on each swing sorting plate 7.
4 is fixed by mounting screws 81 and 83 while being held and held by the guide rails 75, and covers the rear end of each swing sorting plate 74. In particular, the mounting screw 8
1 is screwed to the rear side end of each swing selection plate 74 after the back cover 77 is inserted, whereby each swing selection plate 7
4 is fixed integrally with the back cover 77. By removing the back cover 77, it is possible to assemble and remove the respective swing sorting plates 74 (removal / insertion into / from the guide rail 75).

The back cover 77 is provided with a monitoring window 79 made of a transparent plate, so that the inside of the frame 11, that is, the swing sorting plate 74, the distribution gutter 72 and the like can be visually recognized from the outside.

The sorting unit 10B (its frame 11) composed of the distribution plate 68 and the six swinging sorting plates 74 having the above-described structure receives the driving force of the main motor 120 and reciprocates the rotational driving force by the crank mechanism. It is converted into a driving force and swings (vibrates) in the left-right direction in FIG. The mixed rice K supplied on the oscillating sorting plate 74 is converted into brown rice G and paddy M (those that cannot be removed) by the left and right swinging (vibration) of the oscillating sorting plate 74. This is a configuration in which the mixed rice K is sorted.

That is, the brown rice G having a large specific gravity sinks below the mixed rice layer and is sequentially pushed to the right side of the oscillating sorting plate 74 by being pushed out by the projections 73. The water will be sequentially moved to the left side of the swing sorting plate 74 so as to float above the rice layer and slide down on the surface of the layer. Due to this difference in the degree of transition, brown rice G, mixed rice K in the central region, and paddy M in the left region on the swing sorting plate 74 are concentrated and separated (separated). It has become. This phenomenon gradually and clearly appears while naturally flowing down from the back side (supply side) of the swing sorting plate 74 to the front side. Thus, the brown rice G, the mixed rice K, and the paddy M (hereinafter, referred to as mixed rice, etc.) on the rocking sorter 74 fall downward from the near side of the rocking sorter 74 of each stage (six pieces). It has become.

Further, the falling side end of the swinging sorting plate 74 (FIG. 1)
A fixed partition plate 78 and a movable partition plate 80 are provided at the front end of the drawing.

The fixed partition plate 78 is located near the boundary between the paddy M and the mixed rice K separated (separated) by the swinging separation plate 74 as described above,
The paddy M falls on the left side, and the mixed rice K falls on the right side of FIG. on the other hand,
The moving partition plate 80 is formed in a substantially inverted Y-shape, and is located near the boundary between the paddy M and the mixed rice K separated (separated) by the swinging separating plate 74 as described above. The mixed rice K falls on the left side of FIG. 1 below 80, and the brown rice G falls on the right side of FIG.

A swing discharge gutter 82 is provided below the fixed partition plate 78 and the movable partition plate 80. Further, the swing discharge gutter 82 has a paddy return port 84,
A mixed rice outlet 86 and a brown rice outlet 88 are provided. For this reason, the paddy M sorted (separated) by the fixed partition plate 78 is guided to the paddy return port 84, and the paddy return port 8
4 and fall into the paddy return hopper 90.
Further, the paddy return hopper 90 communicates with the screw conveyor 50 of the first grain gutter 48 described above. For this reason, the rice M that has fallen into the rice return hopper 90 is guided to the screw conveyor 50 of the first grain gutter 48. Further, here, in the screw conveyor 50 of the first grain trough 48, the paddy M falls on the screw on the near side in FIG. 1 among the two divided parts as described above. For this reason, the paddy M sorted (separated) by the fixed partition plate 78 is accumulated at the front end of the sheet of FIG. 1 by the screw conveyer 50, is repelled by the paddy return slotr 52, and again has the pair of paddy rolls 22, 24 will be returned to the upstream side.

Further, a switching valve 53 is provided immediately after the paddy returning thrower 52 (in the middle of the paddy returning route) as shown in FIG. When the switching valve 53 is in the “open” state, the return path of the chaff M can be opened to the outside of the apparatus. Therefore, when the switching valve 53 is operated to be in the “open” state, the rice M returned by the rice return thrower 52 can be directly discharged to the outside of the device.

On the other hand, the mixed rice K sorted (separated) by the fixed partition plate 78 and the movable partition plate 80 is supplied to the mixed rice discharge port 8.
The brown rice G guided to 6 and sorted (separated) by the movable partition plate 80 is guided to the brown rice outlet 88.

Here, the movable partition plate 80 has a male screw shaft 92 whose axial direction is the left-right direction of the swing sorting plate 74.
Is screwed into. The male screw shaft 92 is prevented from moving in the axial direction and is rotated by the driving force of the partition motor 94. For this reason, the partition plate motor 9
The movable partition plate 80 can be moved in the left-right direction in FIG. 1 by driving the 4 and rotating the male screw shaft 92.

Movement of this movable partition plate 80 (its position)
Is determined by the degree of sorting at the time of sorting brown rice by swinging of the swing sorting plate 74. In other words, depending on the type of rice and the surrounding environment, there are cases where sorting is easy and difficult, and
When the sorting is easy, the area where the brown rice G is dropped is widened, so the moving partition 80 is moved to the left in FIG.
On the other hand, when sorting is difficult, the area where the brown rice G falls is narrowed, so that the movable partition plate 80 can be moved to the right in FIG. Reference numeral 93 denotes both partition plates 78,
80 supporting rods.

Also, near the drop-side end (the end on the near side in FIG. 1) of the swing sorting plate 74 located at the uppermost stage, the vicinity of both ends in the width direction of the swing sorting plate 74 (the left and right ends in FIG. 1). (In the vicinity of the portion), a pair of rotating fins 96, 98 (each as a layer thickness sensor for mixed rice or the like) for confirming a drop are provided. For this reason, when the mixed rice or the like falls from the swinging sorting plate 74, the mixed rice or the like engages with the rotating fins 96 and 98 and
6, 98 can be rotated.

A permanent magnet is embedded in the rotary fins 96 and 98, and a proximity switch is provided along a part of the rotation trajectory. For this reason, the rotating fins 96, 9
When 8 rotates, the proximity switch repeats on / off to output a pulse signal. Thereby, it is confirmed that the mixed rice and the like on the swing sorting plate 74 are uniformly diffused by the rotation of both the rotating fins 96 and 98 at the same rotation speed (the layer thickness of the mixed rice and the like is uniform). Can be recognized.

A layer thickness marker 99 is arranged between the rotating fins 96 and 98. As shown in FIG. 5 and FIG. 6, the layer thickness marker 99 is opposed to the swing sorting plate 74 located at the uppermost position by a predetermined distance from the surface of the falling side end of the swing sorting plate 74, and has a lower mark portion 99A and an upper mark portion. The upper and lower parts are constituted by two parts 99B. The lower mark portion 99A is located at a separation dimension position corresponding to a suitable layer thickness of the mixed rice K spreading on the surface of the swing sorting plate 74 (in the present embodiment, for example, 8 m from the surface of the swing sorting plate 74).
m, on the other hand, the upper mark portion 99B is located at a position higher than the lower mark portion 99A by approximately one grain of mixed rice (in the present embodiment, for example,
(A position separated by 10 mm from the surface of the swing sorting plate 74). Further, the lower mark portion 99A and the upper mark portion 99B are colored with different colors. For example, in the present embodiment, the lower mark 9
9A is colored blue, and the upper mark portion 99B is colored red.

This layer thickness marker 99 (lower mark part 99)
A and the upper mark portion 99B) can recognize the layer thickness of the mixed rice K by engaging the mixed rice K spreading on the surface of the swing sorting plate 74.

A discharge gutter 100 is disposed below the sorting unit 10B, that is, at a position facing the mixed rice discharge port 86 and the brown rice discharge port 88 described above. This discharge gutter 100
Are provided along the left-right direction of the device. Further, a screw conveyor 102 is provided at the bottom of the discharge gutter 100. The screw conveyor 102 is set so that the directions of the left and right screws are opposite to each other (the feeding directions are opposite to each other) with respect to a partition plate 104 provided at the center of the discharge gutter 100. Have been.

Thus, the mixed rice K discharged from the mixed rice discharge port 86 is conveyed leftward in FIG. 1 by the screw on the left side of the screw conveyer 102, and is fed to the screw conveyer 50 of the first grain trough 48 described above. (Rear side of FIG. 1). As a result, the mixed rice K is again sent to the mixed rice tank 56 by the mixed rice elevator 54, and the sorting in the sorting unit 10B is executed again.

On the other hand, the brown rice G discharged from the brown rice discharge port 88 is conveyed rightward in FIG. 1 by the screw on the right side of the screw conveyor 102.

The screw conveyer 102 rotates by transmitting the driving force of the main motor 120.

The brown rice discharge port 88 is provided with a brown rice discharge shutter 106. Brown rice discharge shutter 1
Reference numeral 06 is opened and closed by the driving force of a brown rice discharging motor (not shown). In the hulling device 10 according to the present embodiment, a predetermined time (that is, a preparation time) immediately after the operation of the device is started.
In this case, the sorting by the sorting unit 10B is not completely performed, and the mixed rice K may be present at the right end of the swing sorting plate 74 in FIG. Therefore, during the preparation time, the brown rice outlet 8
8 is closed by a brown rice discharging shutter 106, and all are guided to a mixed rice discharging port 86. After the preparation time has elapsed, the brown rice discharging shutter 106 is automatically set.
Are opened, and the brown rice G is discharged from the brown rice outlet 88.

At the right end of the screw conveyor 102, a brown rice discharge lower 108 is integrally provided. For this reason, the brown rice G discharged from the brown rice discharge port 88 and conveyed by the screw conveyor 102 is repelled by the brown rice discharging thrower 108 and the brown rice discharge gutter 110
From the outside.

One end of a dust collection duct 112 is communicated with the upper bent duct portion of the brown rice discharge lower 108. The other end of the dust collection duct 112 is located at the lowermost end of the hulling chamber 20 (near the wind selection path 34 of the wind selection chamber 30). Therefore, the dust in the brown rice discharge blower 108 is sucked by the suction force of the rice husk discharge blower 38 and discharged to the outside together with the rice hull N, so that the dust is not scattered from the brown rice extraction gutter 110.

A lid 114 is provided at the opening of the brown rice extraction gutter 110. The lid 114 can be held in either the closed state or the open state, and is pressed by the discharging force of the brown rice G to discharge the brown rice G even in the closed state. Therefore, if the lid 114 is closed, it is possible to prevent invasion of small animals (rats and the like) from the outside that feed on brown rice G.

Next, the operation of the present embodiment will be described.

In the hulling device 10 having the above configuration, the hulling unit 10
When the paddy M is put into the paddy supply hopper 12 of A and the operation of the apparatus is started, the paddy M flows into the paddy chamber 20 sequentially, and is supplied between the pair of paddy rolls 22 and 24 to be padded (removed).ぷ Processing) is performed. The hulled rice S that has passed through the pair of hulling rolls 22 and 24 and that has been de-hulled flows into the wind selection chamber 30 sequentially,
The rice husks N and pity T mixed into the rice husk discharge blower 3
It is sucked by the suction force of 8. This rice husk N is discharged to the outside through the exhaust duct 42, and pity T is the second grain gutter 4
4 and is collected and collected by the screw conveyor 46 on the front side of the apparatus.

On the other hand, rice husk N and pity T
The mixed rice K from which etc. has been removed is guided to the first grain gutter 48,
It is conveyed to the mixed rice elevator 54 by the screw conveyor 50, and further sent to the mixed rice tank 56 by the mixed rice elevator 54. The mixed rice K sent into the mixed rice tank 56 is guided to the sorting unit 10B when a predetermined amount has been accumulated.

In the sorting section 10B, the mixed rice K dropped on the distribution plate 68 is passed through six distribution gutters 72 to each of the swinging selection plates 74.
Are equally distributed and supplied. 6 swing sorting plates 7
The mixed rice K supplied on the top 4 is separated into brown rice G, paddy M, and mixed rice K in which these are mixed by the right and left swing (vibration) of the swing sorting plate 74.

Further, the paddy M sorted (separated) by the fixed partition plate 78 is guided to the paddy return port 84, from which paddy return hopper 90, the screw conveyor 50 of the first grain trough 48, and The rice is returned to the upstream side of the pair of hulling rolls 22 and 24 again by the hulling thrower 52.
Further, the mixed rice K sorted (separated) by the fixed partition plate 78 and the movable partition plate 80 is discharged from the mixed rice discharge port 86, and is fed by the screw conveyor 102 to the first gutter 48.
To the screw conveyor 50. As a result,
The mixed rice K is again sent to the mixed rice tank 56 by the mixed rice elevator 54, and the sorting is performed again in the sorting unit 10B.

On the other hand, the brown rice G sorted (separated) by the moving partition plate 80 is discharged from the brown rice discharge port 88, and is discharged by the screw conveyor 102 to the brown rice discharge lower 108.
After being conveyed to the boiled rice, it is repelled by the brown rice discharge thrower 108 and taken out of the brown rice extraction gutter 110 to the outside.

Here, in this hulling device 10, a layer thickness marker 99 is provided on the falling side end of the swing sorting plate 74 located at the uppermost stage of the sorting unit 10B from the surface of the swing sorting plate 74. They are arranged facing each other with a distance from each other. Therefore, the mixed rice or the like spreading on the surface of the swing sorting plate 74 engages with the layer thickness marker 99, whereby the layer thickness of the mixed rice or the like can be recognized.

For example, a state in which mixed rice or the like spreading on the surface of the rocking sorting plate 74 slightly touches the lower mark part 99A of the layer thickness marker 99, or a state in which about one grain of mixed rice rides on the lower mark part 99A. If so, it can be determined that the layer thickness is in a suitable state. On the other hand, if the mixed rice or the like spreading on the surface of the rocking sorting plate 74 does not contact the lower mark portion 99A of the layer thickness marker 99 at all, it can be determined that the mixed rice or the like is in an excessively small state. If mixed rice or the like rides on the upper mark portion 99B of 99, it can be determined that there is too much mixed rice or the like, and in any case, it can be determined that the layer thickness is unreasonable. Further, in this case, since the lower mark portion 99A and the upper mark portion 99B of the layer thickness marker 99 are colored in different colors from each other, the engagement state of the mixed rice or the like can be determined at a glance.

Therefore, it is not necessary to have experience or skill to judge whether or not the thickness of the mixed rice or the like spread on the surface of the swing sorting plate 74 is appropriate. The general user can easily judge the suitability of the layer thickness of the mixed rice or the like. This allows
For example, the opening / closing degree of the mixed rice supply shutter 64 that controls the supply amount of the mixed rice or the like supplied to the swinging sorting plate 74 is
If the setting is changed based on the appropriateness of the layer thickness state by the layer thickness marker 99, it is possible to always perform the sorting process of the mixed rice or the like in an optimum state, and to swing the mixed rice or the like accurately (highly accurate) and quickly. Sorting becomes possible.

[0076]

As described above, the swing sorting plate of the rice hulling apparatus according to the present invention can easily judge the suitability of the layer thickness of the mixed rice spreading on the surface of the swing sorting plate. This has an excellent effect that accurate (high accuracy) and speedy swing sorting of mixed rice is enabled.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an entire configuration of a hulling device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram illustrating an entire configuration of a hulling device according to an embodiment of the present invention.

FIG. 3 is an external perspective view of the hulling device according to the embodiment of the present invention.

FIG. 4 is a perspective view showing a configuration of a swing sorting plate and peripheral components of the hulling device according to the embodiment of the present invention.

FIG. 5 is a perspective view showing a configuration of a layer thickness marker provided on a swing sorting plate of the hulling device according to the embodiment of the present invention.

FIG. 6 is a side view showing a configuration of a layer thickness marker provided on a swing sorting plate of the hulling device according to the embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 hulling device 10A hulling unit 10B sorting unit 12 hulling supply hopper 20 hulling room 22 hulling roll 24 hulling roll 30 air selection room 38 chaff discharge blower 44 second grain gutter 46 screw conveyor 48 first grain gutter 50 screw Conveyor 52 Rice return thrower 54 Mixed rice elevator 56 Mixed rice tank 74 Swing sorting plate 99 Layer thickness marker 99A Lower mark part 99B Upper mark part 100 Discharge gutter 102 Screw conveyor 108 Brown rice discharge lowerer M Rice S Rice crushed rice K Mixed rice G Brown Rice N Rice Husk T Pity

Claims (2)

(57) [Claims] 1. Applied to a hulling device for dehulling the supplied paddy, innumerable projections are formed on the surface that are inclined and have a substantially triangular cross section, and sort brown rice from the mixed rice after dehulling. In the swing sorting plate of the hulling device for performing, a layer thickness marker that is arranged to be opposed to the surface on which the protrusions are formed at a predetermined distance from each other and that recognizes the layer thickness of the mixed rice spreading on the surface is provided. Swing sorting plate of the hulling device. 2. The layer thickness marker has two upper and lower mark portions, and the lower mark portion is located at a separation dimension position corresponding to a preferable layer thickness of the mixed rice spreading on the surface of the swing sorting plate. The rocking sorter plate of the hulling apparatus according to claim 1, wherein the upper mark portion is disposed at a position higher than the lower mark portion by substantially one grain of mixed rice.