JPS6232987B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a swing-type sorting device for unhulled rice and brown rice. The present invention was developed in order to obtain an apparatus for sorting unhulled rice and brown rice that is easy to handle and has better sorting performance.

(Prior art) Conventionally, side walls were provided on the left and right sides of a sorting plate that was generally rectangular in bird's-eye view, and countless protrusions were formed on the surface of the sorting plate, and the sorting plate had porous holes so that wind could blow from the bottom to the top. The sorting plate is formed by a plate, and the left and right sides of the sorting plate are formed substantially horizontally or inclined so that the grains are distributed in the left and right direction, and the sorting plate is formed to reciprocate in the left and right direction, and the sorting plate is It is formed to be inclined in the front-back direction so as to flow and discharge grains in the front-back direction, and one side of the front and rear sides of the sorting plate is provided with a side wall that stands up approximately at right angles, and the other side of the front and rear sides of the sorting plate has a full width. a fixed position windmill is provided at the bottom of the sorting plate to provide wind to the sorting plate, and the casing of the windmill is fixed regardless of the reciprocating movement of the sorting plate;
A swing-type sorting device for separating unhulled rice and brown rice by cutting off the lower half of the casing and using it as an inlet is known as described in Japanese Patent Application Laid-Open No. 50870/1983.

In addition, the top surface of the sorting plate is formed into an uneven surface over the entire surface, the shape of the sorting plate when viewed from above is approximately square, and the sorting plate is formed of a perforated plate so that wind can blow from the bottom to the top. The left and right sides of the sorting plate are formed approximately horizontally, and the sorting plate is formed to be inclined in the front and back direction so as to flow and discharge the grains in the front and rear directions, and is also configured to swing back and forth in the left and right direction. The one with a side wall that stands up at a nearly right angle was developed by Tokukai Sho.
It is described in Japanese Patent No. 49-117235 and is publicly known.

In addition, a side wall is provided on either the left or right side of the sorting plate, and a side wall is provided on the other side, and a protrusion is formed on the sorting plate surface so that the discharge side is higher, so that wind blows through the sorting plate from the bottom to the top. The sorting plate is formed with a perforated plate, and the left and right sides of the sorting plate are formed horizontally, and the sorting plate is formed so as to be able to swing back and forth in the front and rear directions. A swing-type sorting device is provided in which a windmill is provided at the bottom of the sorting plate, and the starting end of the casing of the windmill is shaped to reach directly below the center of the windmill. It is described in Japanese Utility Model Application Publication No. 39-36961 and is publicly known.

(Problems to be Solved by the Invention) In the first known example, since the position of the windmill with respect to the surface of the sorting plate is not special, even if the sorting plate swings, the strength and weakness of the wind blowing up the sorting plate will hardly affect the position of the windmill. No impact.
That is, in the first known example, the wind turbine simply moves left and right within the casing, and the position of the air outlet of the casing does not change, so there is almost no effect on the air volume.

In the second known example, the structure of the wind turbine is formed so that the amount of air is always the same.

In the third known example, the position of the starting end of the casing is directly below the wind turbine, so there is almost no effect on the air volume.

(Means for Solving the Problem) The present invention has thus been devised by providing a left side wall 5 and a right side wall 6 on the left and right sides of the sorting plate 1, which has a generally square bird's-eye view shape.
A rocking protrusion 7 for shaking grains to either the left or right side is formed on the surface of the sorting plate 1, and the sorting plate 1 is formed of a perforated plate so that wind can blow from the bottom to the top.
The left and right sides of the sorting plate 1 are formed substantially horizontally or inclined, and the front and back sides are formed inclined, and the sorting plate 1 is formed so as to be able to swing back and forth from side to side. On the other side of the front and rear sides, a discharge port 3 extending over the entire width is formed, and at the bottom of the sorting plate 1 there is provided a windmill 19 that gives wind to the sorting plate 1, and the casing 21 of the windmill 19 is It reciprocates to the left and right along with the sorting plate 1, and its starting end 22 comes closest to the side of the windmill 19, and then gradually moves away from the windmill 19, winding it in a spiral over the windmill 19 and making one rotation; The terminal end is connected to the upper left wall 5, and the suction port 25 of the wind turbine 19 is opened on the left and right sides, so that when the wind turbine 19 and the starting end 22 are closest, the air volume is maximum, and the wind turbine 19 and the starting end 22 are connected to each other. This is a swing-type sorting device for unhulled rice and brown rice, with the airflow being the weakest when the distance is maximum.

(Example) To explain an example of the present invention, 1 is a sorting plate. The sorting plate 1 is made of a thin metal plate, synthetic resin, or the like. The sorting plate 1 has a substantially rectangular shape when viewed from above. Preferred embodiments are square or rectangular. The sorting plate 1 has a supply side 2 on its front and rear sides, that is, one side on the grain flow side, and a discharge side 3 on the other side. The discharge side 3 has an open structure since it is a part for taking out the grains, but the supply side 2 is provided with a side wall 4 that projects upward to prevent the grains from spilling out.

A left side wall 5 is provided on the left and right sides of the sorting plate 1,
A right side wall 6 is provided on the right side. The sorting plate 1 is made of a perforated metal plate, and has a raised protrusion 7 on one side of the left side wall 5 on the sorting plate 1 side. The numerous rocking protrusions 7 are formed by press working.
The sorting plate 1 is made of iron plate, aluminum, synthetic resin, or the like.

A supply hopper 8 is provided at an upper position on the supply side 2 of the sorting plate 1. The discharge side 3 of the sorting plate 1 in the flow direction is lower than the supply side 2 and has a flow angle β. This flow angle β is not a strong inclination angle such that the grains naturally fall and are discharged, but is an angle that is such that when the sorting plate 1 reciprocates in the left-right direction, the grains are oscillated and discharged while maintaining a layered structure. .
The flow angle β may be fixed or adjustable. The flow angle β can be adjusted either by tilting the entire underframe or by adjusting the inclination of only the sorting plate 1. The latter can be easily carried out by pivoting one end and attaching a screw to the other end.

Although the sorting plate 1 is formed horizontally in the left and right direction, it may be installed at an angle. A frame 9 is provided below the sorting plate 1.
Bearings 10 and 11 are provided on the left and right sides of the underframe 9, and the lower ends of support rods 12 and 13 are fixed to the bearings 10 and 11, respectively. Further, bearings 14 and 15 are provided on the lower surface of the sorting plate 1, and the supporting rods 12 and 13
The upper ends of each are respectively pivoted. Bearings 10, 11
are provided in pairs on the front and rear sides, so the sorting plate 1 is supported by a total of four support rods 12 and 13.

16 is the eccentric wheel, 17 is its rod, and rod 1
The other end of 7 is pivotally attached to the sorting plate 1 side, and when the eccentric wheel 16 rotates, the sorting plate 1 is reciprocated in the left-right direction substantially horizontally via the rod 17.

At the bottom of the sorting plate 1 is a horizontal rotation axis 1 in the front and back direction.
8 is provided, and a windmill 19 is fixed to the rotating shaft 18. The rotating shaft 18 is mounted on bearings 20, 20 fixed to the underframe 9, and the wind turbine 19 can only rotate freely. A casing 21 surrounding the wind turbine 19 is fixed to the lower surface of the sorting plate 1 and swings together with the sorting plate 1.

The starting end 22 is located right next to one left side wall 5 of the windmill 19, and is closest to the windmill 19, and then rotates around the windmill 19 in a spiral shape so as to gradually move away from the windmill 19. , the terminal end is connected to one left side wall 5.

The suction ports 25 of the windmill 19 are opened on the left and right sides of the windmill 19.

23 is a wind barrel, and 24 is a branch casing that separates from the starting end 22 of the casing 21 and reaches the right side wall 6 on the right side.

(effect) Next, we will discuss the effect.

The mixed rice is supplied to the upper surface of the sorting plate 1, and the eccentric wheel 16
When the support rods 12 and 13 are rotated, the upper ends of the support rods 12 and 13 swing approximately horizontally from the rightmost position shown in FIG. 3 to the leftmost position shown in FIG. 4.

Therefore, in the state shown in FIG. 3 in which the upper ends of the support rods 12 and 13 are closest to the right, the starting end 22 is closest to the left side wall 5 of the wind turbine 19, and After that, it is shaped so that it rotates once in a spiral from the top of the windmill 19 so as to gradually separate from the windmill 19, and is connected to one left side wall 5 at the terminal end.
When the windmill 19 and the starting end 22 come closest, the windmill 1
Since the wind blown out from 9 has close to zero co-rotating components, the entire amount of wind is blown out, resulting in the maximum amount of air.On the other hand, in the case of Fig. 4, where the upper ends of support rods 12 and 13 are farthest to the left. In this case, the wind turbine 19 and the starting end 22 are separated from each other at the maximum, the amount of wind rotating together increases, and the wind volume becomes the weakest.

Therefore, the sorting action is shown in Figures 3 and 4.
The states shown in Figs. 5 and 6 are repeated over and over again. In Fig. 3, brown rice and unhulled rice are in a mixed state because they have just been fed, but this rotates the eccentric wheel 16 and causes the rice to be mixed as shown in Fig. 4. When the sorting plate 1 is moved to the left, the rocking protrusion 7 is also moved to the left, so that the tips of the rocking protrusions 7 poke the grains. Therefore, the mixed rice is on one left wall 5
It is swayed in the direction of , hits the left side wall 5, and swells up.

At this time, the brown rice with a higher specific gravity sinks to the lower layer, and the unhulled rice with a lower specific gravity tends to float to the upper layer, so the tip of the rocking protrusion 7 hits the brown rice with a higher specific gravity more often. , As shown in Figure 4, brown rice moves more toward one left wall 5, while unhulled rice, which has a lower specific gravity, does not move much.

However, when the sorting plate 1 moves to the right as shown in FIG. 4 to FIG. The water flows toward the other right side wall 6. This action is facilitated by wind, and in FIG. 5, the wind volume is at its maximum, promoting the movement of the unhulled rice.

When the sorting plate 1 moves from FIG. 5 to FIG. 6, the proportion of brown rice with a high specific gravity being poked by the tips of the rocking protrusions 7 increases, and therefore the brown rice is increasingly moved toward the left side wall 5. This process separates it from unhulled rice, which has a lower specific gravity. In the state shown in FIG. 6, almost no wind is required, so the wind turbine 19 and the starting end 22 are separated.

(Effects) Conventionally, side walls were provided on the left and right sides of a sorting plate that was generally rectangular in bird's-eye view, and countless protrusions were formed on the surface of the sorting plate, and the sorting plate had porous holes so that wind could blow from the bottom to the top. The sorting plate is formed by a plate, and the left and right sides of the sorting plate are formed substantially horizontally or inclined so that the grains are distributed in the left and right direction, and the sorting plate is formed to reciprocate in the left and right direction, and the sorting plate is It is formed to be inclined in the front-back direction so as to flow and discharge grains in the front-back direction, and one side of the front and rear sides of the sorting plate is provided with a side wall that stands up approximately at right angles, and the other side of the front and rear sides of the sorting plate has a full width. a fixed position windmill is provided at the bottom of the sorting plate to provide wind to the sorting plate, and the casing of the windmill is fixed regardless of the reciprocating movement of the sorting plate;
A swing-type sorting device for separating unhulled rice and brown rice by cutting off the lower half of the casing and using it as an inlet is known as described in Japanese Patent Application Laid-Open No. 50870/1983.

In addition, the top surface of the sorting plate is formed into an uneven surface over the entire surface, the shape of the sorting plate when viewed from above is approximately square, and the sorting plate is formed of a perforated plate so that wind can blow from the bottom to the top. The left and right sides of the sorting plate are formed approximately horizontally, and the sorting plate is formed to be inclined in the front and back direction so as to flow and discharge the grains in the front and rear directions, and is also configured to swing back and forth in the left and right direction. The one with a side wall that stands up at a nearly right angle was developed by Tokukai Sho.
It is described in Japanese Patent No. 49-117235 and is publicly known.

In addition, a side wall is provided on either the left or right side of the sorting plate, and a side wall is provided on the other side, and a protrusion is formed on the sorting plate surface so that the discharge side is higher, so that wind blows through the sorting plate from the bottom to the top. The sorting plate is formed with a perforated plate, and the left and right sides of the sorting plate are formed horizontally, and the sorting plate is formed so as to be able to swing back and forth in the front and rear directions. A swing-type sorting device is provided in which a windmill is provided at the bottom of the sorting plate, and the starting end of the casing of the windmill is shaped to reach directly below the center of the windmill. It is described in Japanese Utility Model Application Publication No. 39-36961 and is publicly known.

However, in the first known example, since the position of the windmill relative to the surface of the sorting plate is not special, even if the sorting plate swings, it hardly affects the strength of the wind blowing up the sorting plate. That is, in the first known example, the wind turbine simply moves left and right within the casing, and the position of the air outlet of the casing does not change, so there is almost no effect on the air volume.

Further, in the second known example, the structure of the wind turbine is formed so that the amount of air is always the same.

Also, in the third known example, since the starting end of the casing is located directly below the wind turbine, there is almost no effect on the air volume.

However, in the present invention, a left side wall 5 and a right side wall 6 are provided on the left and right sides of the sorting plate 1, which is generally rectangular in bird's-eye view, and a shaking plate is provided on the sorting plate 1 to shake the grains to either the left or right side. The sorting plate 1 is formed of a perforated plate so that wind can blow from the bottom to the top, and the left and right sides of the sorting plate 1 are formed substantially horizontally or inclined, and the front and back sides are inclined. 1 is formed so as to be able to swing back and forth from side to side, and on one side of the front and rear sides of the sorting plate 1 is formed a side wall 4 that stands up at a substantially right angle, and on the other side of the front and rear sides is formed a discharge port 3 that extends over the entire width. A windmill 19 is provided at the bottom of the sorting plate 1 to provide wind to the sorting plate 1, and the casing 21 of the windmill 19 reciprocates to the left and right together with the sorting plate 1, and its starting end 22 is connected to the windmill 1.
9, and then wraps around the windmill 19 in a spiral shape so as to gradually move away from it, making one rotation;
The terminal end is connected to the upper left side wall 5, and the wind turbine 1
The suction ports 25 of 9 are opened on the left and right sides, so that when the windmill 19 and the starting end 22 are closest, the air volume is maximum, and when the windmill 19 and the starting end 22 are farthest apart, the air volume is the weakest. Since this device is a swing type sorting device for brown rice, when the eccentric wheel 16 is rotated to move the sorting plate 1 to the left, the supplied mixed rice is moved to the left as well. As a result, the grains are poked with the tips of the rocking protrusions 7, and the mixed rice is rocked toward one left wall 5 and swells against the left wall 5, and at this time, the specific gravity of the rice increases. Larger brown rice sinks to the lower layer, and paddy rice with a lower specific gravity tends to float to the upper layer, so the tip of the rocking protrusion 7 is more likely to poke the brown rice with a higher specific gravity, and therefore, the brown rice Most of the rice moves toward the left side wall 5, and unhulled rice with a smaller specific gravity does not move much. Therefore, when the sorting plate 1 moves to the right, the rocking protrusion 7
The tip of the will not work, so leave the brown rice as it is.
The unhulled rice slides on the top surface of the brown rice and flows toward the other right side wall 6, but this action can be promoted by the wind, allowing for good sorting.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of the present invention, FIG. 2 is a longitudinal sectional side view of the invention, and FIGS. 3 to 6 are explanatory diagrams of the operation. Explanation of the symbols: 1... Sorting plate, 2... Supply side, 3... Discharge side, 4... Side wall, 5... Embankment side wall, 6... Non-embedding side wall, 7... Projection, 8... Supply hopper, 9... Underframe, 1
0... Bearing, 11... Bearing, 12... Support rod, 13... Support rod, 14... Bearing, 15... Bearing, 16... Eccentric ring, 1
7...rod, 18...rotating shaft, 19...windmill, 20...
Bearing, 21...Casing, 22...Starting end, 23...
Wind barrel, 24... Branch casing, 25... Inlet, β
...flow angle.

Claims (1)

[Claims] 1. A left side wall 5 and a right side wall 6 are provided on the left and right sides of the sorting plate 1, which has a generally rectangular bird's-eye view shape, and a rocking protrusion 7 is formed on the surface of the sorting plate 1 to rock grains to either the left or right side. The sorting plate 1 is formed of a perforated plate so that air can blow from the bottom to the top, and the left and right sides of the sorting plate 1 are formed substantially horizontally or inclined, and the front and back sides are inclined. The sorting plate 1 is formed to be movable, and on one side of the front and rear sides of the sorting plate 1 is formed a side wall 4 that stands up at a substantially right angle, and on the other side of the front and back sides is formed a discharge port 3 spanning the entire width. There is a windmill 19 that gives wind to the sorting plate 1.
The casing 21 of the wind turbine 19 is arranged so that the casing 21 of the wind turbine 19 reciprocates to the left and right together with the sorting plate 1, and the starting end 22 of the wind turbine 19 comes closest to the side of the wind turbine 19, and then gradually moves away from the wind turbine 19. The upper part is spirally wound and rotated once, and the terminal end is connected to the upper left wall 5, and the suction port 25 of the windmill 19 is opened to the left and right sides, so that when the windmill 19 and the starting end 22 are closest to each other, the maximum This swing-type sorting device for unhulled rice and brown rice is configured such that the air volume becomes the lowest when the wind turbine 19 and the starting end part 22 are separated from each other at the maximum.