JP2001259528A - Stone removing sorter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stone removing sorter capable of performing efficient sorting and the smooth discharge of residual rice. SOLUTION: A residual rice discharge metal net 29 is provided to a sorting metal net 28, forwardly inclined in a downward direction, in adjacent relationship through an erected side plate 20b so as to be inclined in the same direction as the sorting metal net. A sorting fan 12 and a residual rice discharge fan 13 are separately provided in the fan case 9 attached to the undersurfaces of both of the sorting metal net 28 and the residual rice discharge metal net 29.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stone removing and sorting apparatus for removing foreign matter such as pebbles from grains such as rice.

[0002]

2. Description of the Related Art In a conventional stone removing and sorting apparatus, a sorting wire mesh is provided at an angle, and is swung obliquely up and down while blowing up wind from below, so that a stone having a large specific gravity is opposed to the slope of the sorting wire mesh. The grain (rice) with a low specific gravity is washed away to the downstream to separate the two, but when the supply of the selected material (mixture of grain and stone) to the sorting wire mesh stops, the grain Stops flowing downstream. As described above, in order to collect and quickly collect the grains (remaining rice) remaining unseparated from the stones in the sorting wire net together with the stones without discarding them outside the machine, for example, JP-A-10-146567 , 11
No. 28425 is known.

[0003] In these, the remaining rice discharging wire net is integrally provided adjacent to the sorting wire net, and both are connected by a remaining rice outlet, so that the swing of the sorting wire net can be performed even when the supply of the grain to the sorting wire net is completed. Subsequently, the grains and stones remaining in the sorting wire mesh are sent to the stone sump, the stones collected earlier are discharged from the stone grain outlet, and the remaining grains are transferred from the remaining rice outlet to the remaining grain discharging wire mesh. The grain is collected by sending it to the remaining rice outlet in the United States.

[0004]

However, as the grains on the sorting wire mesh are discharged from the remaining rice discharging wire mesh, the number of grains on the sorting wire mesh decreases, and a large amount of air comes out of the holes of the sorting wire mesh. The air discharged from the residual rice discharging wire mesh is reduced, and as a result, there is a problem in that grains are stagnated on the residual rice discharging wire mesh. The present invention has been made in order to solve the above-mentioned conventional problems, and an object of the present invention is to provide a stone removing and sorting apparatus capable of performing efficient sorting and smooth discharge of remaining rice. It is in.

[0005]

Means for Solving the Problems In order to achieve the above object, the stone removing and sorting apparatus of the present invention is configured as follows. The invention according to claim 1 is characterized in that a sorting wire mesh whose front is inclined low is provided with a remaining rice discharging wire mesh which is inclined in the same direction as the sorting wire mesh adjacent via a standing side plate, and a rear portion of the sorting wire mesh is narrowed to reduce the stone. A reservoir is formed. Then, a fan case with a fan inside is attached to the lower part of the sorting wire mesh and the remaining rice discharging wire mesh to form a sorting portion, and fans inside the fan case are separately provided for sorting and for removing remaining rice, and the sorting portion is provided. And a swinging mechanism is connected to the sorting unit so as to swing the sorting unit obliquely up and down.

According to a second aspect of the present invention, there is provided a sorting wire net having a front inclined at a low angle, a remaining rice discharging wire mesh inclined in the same direction as the adjacent sorting metal mesh via an upright side plate, and a rear portion of the sorting metal mesh is narrowed. And forming a stone pool portion, and forming a remaining rice discharge port on the side plate adjacent to the remaining rice discharge wire mesh of the sorting wire mesh ahead of a position looking into the stone pool portion to form a remaining wire discharge port. Open and close the rice wire mesh side. Then, a fan case with a fan inside is attached to the lower part of the sorting wire mesh and the remaining rice discharging wire mesh to form a sorting portion, and fans inside the fan case are separately provided for sorting and for removing remaining rice, and the sorting portion is provided. And a swinging mechanism is connected to the sorting unit so as to swing the sorting unit obliquely up and down.

[0007] A third aspect of the present invention is a residual rice discharging wire net having the same orientation as the sorting wire mesh adjacent to the sorting wire mesh having a lower front inclined through an upright side plate and having a larger inclination angle than the sorting wire mesh. To form a stone pool by narrowing the rear part of the sorting wire net. Then, a fan case with a fan inside is attached to the lower part of the sorting wire mesh and the remaining rice discharging wire mesh to form a sorting portion, and fans inside the fan case are separately provided for sorting and for removing remaining rice, and the sorting portion is provided. And a swinging mechanism is connected to the sorting unit so as to swing the sorting unit obliquely up and down.

According to a fourth aspect of the present invention, the inside of the fan case is partitioned into a sorting fan side and a remaining rice discharging fan side. In the invention according to claim 5, the sorting fan and the remaining rice discharging fan are separately driven. In the invention according to claim 6, the sorting fan and the remaining rice discharging fan are driven in opposite directions. The invention according to claim 7 is provided with a device for injecting air forward on the rear side of the remaining rice discharging wire mesh. In the invention according to claim 8, the sorting wire mesh is inclined toward the remaining rice discharging wire mesh side. According to a ninth aspect of the present invention, there is provided a means for discharging the stones collected in the stone sump according to the number of activations or the operation time of the apparatus.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view of the whole stone removing and sorting apparatus according to the present invention, FIG. 2 is a cross-sectional view of the CC main part of FIG. 1, FIG. 3 is a plan view of the sorting unit, and FIG. FIG. 5 is a cross-sectional view taken along the line EE of FIG. 3, and FIG.
It is FF sectional drawing of.

At the top of the machine frame 16, a grain supply port 4 is provided at the bottom.
And a funnel-shaped tank 3 having A sorting unit A is provided below the tank 3, and the sorting unit A is provided with a wire mesh 1 for sorting and discharging remaining rice.
(See FIG. 3) and the fan case 9, and the fan case 9 is attached via a wind guide path 17 that covers the lower surface of the wire mesh 1. The sorting unit A is connected to the swing mechanism B.

The above-mentioned wire mesh 1 is provided integrally with a sorting wire mesh 28 inclined forward in a same direction as the sorting wire mesh 28 adjacent thereto via a standing side plate 20b. The other side edge of the sorting wire mesh 28 is provided with an upright side plate 20a, the other side edge of the remaining rice discharging wire mesh 29 is provided with an upright side plate 20c, and the rear ends of the sorting wire mesh 28 and the remaining rice discharging wire mesh 29 are integrated with these side plates. Enclosed. And sorting wire net 2
8 is narrowed to form a stone pool 22, and two fronts of the side plate 20 b interposed between the sorting wire net 28 and the remaining rice discharge wire net 29 are located forward of a position looking into the stone pool 22. A remaining rice discharge port 39 is formed, and a remaining rice discharge shutter 38 that opens and closes the remaining rice discharge port 39 with a solenoid 40 is provided. The outlet 39 for the remaining rice is shown in FIG.
However, the number is not limited to this, and may be one or three or more. The method for opening and closing the remaining rice discharging shutter 38 is based on the solenoid 40.
Alternatively, a motor, a servomotor, or the like may be used.

A grain discharge port 21 is provided at the front end of the sorting wire net 28, and a stone discharge port 23 is opened at the bottom of the stone pool 22 at the rear, and a stone discharge port 23 is provided at the stone discharge port 23. A discharge shutter 24 is provided. A large number of ventilation pores 26, which are cut and raised rearward and provided with tongue pieces 30, are opened on the bottom surface of the sorting wire net 28 (see FIG. 5). At the front end of the remaining rice discharging wire mesh 29, a remaining rice outlet 25 is provided, and a large number of ventilation holes 27 penetrating the flat board surface in the vertical direction are opened (see FIG. 6).

Further, inside the fan case 9, the sorting fan 12 is provided separately below the sorting wire mesh 28, and the remaining rice discharging fan 13 is provided separately below the remaining rice discharging wire mesh 29 (see FIG. 2). The swinging mechanism B is provided between a pair of support plates (not shown) provided along the side surface of the machine frame 16, the rotation shaft 18 of the sorting fan 12 and the remaining rice discharge fan 13 and the rotation shaft of the crank arm 6. The motor 8 is connected to the fan rotation shaft 18 and the crank rotation shaft 6a by belts via fan pulleys 11 and the like, respectively.
Rotate at the same time. One end of each of a pair of links 7 is rotatably supported at the upper two places of the support plate, and the other ends of these links 7 are rotatably attached to the side wall of the fan case 9 of the sorting unit A. The rotation of the crank arm 6 causes the link 7 to pivot about the shaft fulcrum, and swings the entire sorting wire mesh 28 and the remaining rice discharging wire mesh 29 obliquely up and down.

Next, the operation of the above-mentioned stone removing and sorting apparatus will be described. The grains mixed with the stones are supplied from the tank 3 to the sorting wire mesh 28 through the grain supply port 4, and the rock having a large specific gravity sinks into the lower layer by the swing of the sorting wire mesh 28 and the air blown out from the ventilation holes 26, and the specific gravity is reduced. Small grains of the surface rise to the upper layer. Then, the upper grain is slid downward by its own weight along the inclination of the sorting wire net 28 by swinging, and is discharged from the grain outlet 21. The lower stone is cut and raised, shaken by the tongue piece 30, and lifted upward. The stones are gathered in the stone pool 22 and the stone discharge shutter 24 is periodically opened to discharge the stone from the stone discharge port 23 and discharged out of the machine by the stone discharge chute 5.

Normally, in order to reduce the residual kernel to zero, the stone is first discharged, and then the stone is discharged after the stone on the sorting wire net 28 is removed. However, the stone in the stone pool 22 cannot be removed completely. Occasionally, in this case, stones will be mixed into the remaining rice grains. Therefore, as described above, the side plate 20
b, the remaining rice discharge port 39 is disposed in front of the position looking into the stone sump 22, and after the remaining rice is discharged, the stones can be discharged. By adopting a structure that slightly remains in the stone pool portion 22, it is possible to prevent stones that could not be removed conventionally from being mixed into the residual kernels. In addition, as for the discharging operation, in addition to the case of discharging the stone after the discharge of the remaining rice, the first discharge of the stone is performed, then the discharge of the remaining rice is performed, and then the second discharge of the stone is performed. Eject any stones that could not be removed.

As described above, stone removal and sorting are performed. However, as described above, since the sorting fan 12 and the remaining rice discharging fan 13 are provided independently of each other, the kernels on the sorting wire net 28 are separated. Is discharged to reduce the number of grains on the sorting wire net 28, the air flowing out from the remaining rice discharging wire mesh 29 does not become particularly small. In other words, by separating the fan 12 for sorting and the fan 13 for discharging residual rice, the fluctuation of the blown-out air is reduced, so that efficient sorting and smooth residual rice discharging can be performed.
The conventional problem that the grain is stagnated on the remaining rice discharge wire mesh does not occur.

FIG. 7 is a sectional view taken along the line FF of FIG. 3 and shows another form different from the vent hole 27 shown in FIG. That is, FIG. 11A shows a state in which the tongue piece 31 is cut and raised toward the front, and the tongue piece 31 is erected, and FIG. Is blown forward, so that the grain descends faster, and the remaining rice reaches the remaining rice outlet 25 promptly.

FIG. 8 shows that the inside of the fan case 9 below the sorting wire net 28 and the remaining rice discharging wire mesh 29 is completely separated by the partition plate 10 into the sorting fan 12 side and the remaining rice discharging fan 13 side. In addition to separately providing the sorting fan 12 and the remaining rice discharging fan 13 as well as partitioning the inside of the fan case 9, the fluctuation of the air coming out of the wire mesh is eliminated, so that more efficient sorting and smooth remaining rice discharging can be achieved. Becomes possible.

FIG. 9 shows a structure in which the sorting fan 12 and the remaining rice discharging fan 13 are driven separately.
The selection fan 12 is driven by a selection fan motor 14,
The remaining rice discharging fan 13 is driven by a remaining rice discharging fan motor 15.

With such a configuration, the sorting fan 12
And the remaining rice discharge fan 13 can be varied separately.
Each fan can be operated at an optimum rotation. For example, by raising the rotation of the selection fan 12 by about 20% after the grains supplied from the grain supply port have disappeared, stones having a high specific gravity can be quickly collected by the stone pool. Further, by appropriately changing the rotation of the remaining rice discharging fan 13, the remaining rice can be quickly pushed out. Therefore, it is particularly suitable for a structure in which sorting is performed while discharging remaining rice.

FIG. 10 shows a structure in which the inside of the fan case 9 is partitioned by the partition plate 10 when the sorting fan 12 and the remaining rice discharging fan 13 shown in FIG. 9 are separately driven. is there. Further, as shown in FIG. 11, the sorting fan 12 and the remaining rice discharging fan 13 described above.
Are simultaneously driven (see (a)) and separately driven (see (b)), the inside of the fan case 9 is not completely partitioned from top to bottom, but is formed in a substantially lower half by a partition plate 33. It is good also as a structure which partitions off partially.
FIG. 12 shows a similar structure in which the upper half of the fan case 9 is divided by a partition plate 34.
FIG. 13 is a longitudinal sectional view of the fan case 9 having the structure shown in FIG.

FIGS. 14 and 15 show a structure in which the sorting fan 12 and the remaining rice discharging fan 13 are driven separately, and in which the sorting fan 12 and the remaining rice discharging fan 13 are driven in opposite directions. Show. In this case, the remaining rice discharging fan 13 is not coaxial with the sorting fan 12,
It is possible to discharge the remaining rice more quickly by displacing it behind the lower part of the screening wire mesh 29 and rotating the fan 13 for discharging the remaining rice so that the air easily flows in the direction of discharging the remaining rice.

FIG. 16 shows a blower 35 provided as a device for injecting air forward on the rear side of the wire mesh 29 for discharging the remaining rice, thereby forcibly removing the remaining rice on the wire mesh 29 for discharging the remaining rice. Can be sent to the exit side. 17 and 18
Is a device in which a fan 36 and an air gun 37 using a compressor are provided instead of the blower as the above-described air injection device. FIG. 23 is a plan view of a sorting unit A showing another embodiment, and FIG. 24 is a cross-sectional view along the longitudinal direction. That is, by making the inclination of the remaining rice discharging wire net 29 larger than that of the sorting wire net 28, the remaining rice discharging can be performed faster. The motor 41 is used to open and close the shutter 38 for discharging remaining rice. FIG. 25 shows a different form of the ventilation hole of the residual rice discharging wire mesh 29 in this embodiment. 26 to 28 show still another embodiment. As is apparent from FIGS. 27 (a) and 28, for example, the sorting wire mesh 28 and the remaining rice discharging wire mesh 2 are shown.
9 is provided with a step, and the remaining rice discharging wire mesh 29 is arranged at a position lower than the sorting wire mesh 28.

FIG. 19 is a plan view of a sorting section A showing another embodiment. According to this, the rear end of the side plate 20b interposed between the sorting wire mesh 28 and the remaining rice discharging wire mesh 29 is provided up to the vicinity of the stone pool 22 as shown in the drawing,
A remaining rice transfer opening is formed in the stone pool 22 to communicate the sorting wire mesh 28 and the remaining rice discharging wire mesh 29. When the supply of the grains from the tank 3 is completed, the operation is continued thereafter, and among the grains remaining on the sorting wire net 28, the grains that have been shaken up to the vicinity of the stone pool 22 are removed from nearby rice. The paper is transferred to the remaining rice discharging wire mesh 29 through the transfer opening.
The transferred grains are swung by the remaining rice discharge wire mesh 29 and the ventilation pores 27
The air blown out from the outlet is slid downward and discharged from the remaining rice outlet 25. In this way, the remaining rice can be discharged while being sorted.

FIG. 20 is a plan view of the sorting section A.
The structure is the same as that shown in FIG. 19 except that the entire shape of the wire mesh for sorting and discharging the remaining rice is symmetrical.

In the embodiment described above, the sorting wire mesh 28 and the remaining rice discharging wire mesh 29 of the sorting unit A are inclined only in the front-rear direction, but the remaining rice on the sorting wire mesh 28 is replaced by the remaining rice discharging wire mesh 29. In order to smoothly flow and discharge to the side, the entire wire mesh may be slightly inclined (10 degrees or less, preferably about 0.5 to 1 degree) toward the remaining rice discharge wire mesh 29. In this case, the entire wire mesh may be inclined, or the wire mesh may be twisted only on the rear side. For example, FIG.
3 is a sectional view taken along the line GG in FIG. 3 described above, and FIG. 22 is a sectional view taken along the line HH in FIG. 3, showing a case where the rear side is inclined by an angle α with respect to the front side of the wire mesh.

In addition, depending on the type of grain and the production area, there is a case where there is almost no mixing of stones. Since many grains are discharged, the number and time of stone discharge are set according to the number of times or the operating time of the stone removing and sorting apparatus, and the stone is discharged by controlling based on the number of times. Can be reduced.

[0028]

As described above in detail, in the stone removing and sorting apparatus of the present invention, the fans inside the fan case below the sorting wire mesh and the remaining rice discharging wire mesh are separately provided for the sorting and the remaining rice discharging. Therefore, the fluctuation of the air flowing out of the wire mesh is small, so that it is possible to carry out the efficient sorting and the smooth discharge of the remaining rice. In addition, a remnant rice discharge port is formed in a side plate adjacent to the remnant rice discharge wire mesh of the sorting wire mesh ahead of a position looking into the stone pool portion to openably open and close the reticulated rice mesh side and the remnant rice discharge wire mesh side. This can prevent stones from being mixed into the remaining rice grains. Further, by providing the remaining rice discharging wire mesh adjacent to the sorting wire mesh at a larger inclination angle than the sorting wire mesh, it is possible to discharge the remaining rice faster.

Further, by dividing the inside of the fan case into a sorting fan side and a remaining rice discharging fan side, fluctuation of air flowing out of the wire mesh is eliminated, and more efficient sorting and remaining rice discharging can be performed. In addition, by separately driving the sorting fan and the remaining rice discharging fan, the sorting fan and the remaining rice discharging fan can be operated at optimal rotations. In addition, by driving the sorting fan and the remaining rice discharging fan in the opposite directions, the fan can be operated so that air is easily emitted particularly in the remaining rice discharging direction.

Further, by providing a device for injecting air forward on the rear side of the residual rice discharging wire mesh, the grains on the residual rice discharging wire mesh can be forcibly sent to the outlet side. Also, by tilting the sorting wire mesh toward the remaining rice discharging wire mesh, the remaining rice grains on the sorting wire mesh flow smoothly to the remaining rice discharging wire mesh side and are discharged. In addition, wastes of kernels can be reduced by providing a means for discharging the stones collected in the stone sump according to the number of activations or the operation time of the apparatus.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of the whole stone removing and sorting apparatus of the present invention.

FIG. 2 is a sectional view of a principal part taken along line CC of FIG.

FIG. 3 is a plan view of a sorting unit A.

FIG. 4 is a cross-sectional view along the longitudinal direction of FIG.

FIG. 5 is a sectional view taken along the line EE of FIG. 3;

FIG. 6 is a sectional view taken along line FF of FIG. 3;

FIG. 7 is a sectional view taken along line FF of FIG. 3;

FIG. 8 is a sectional view of a principal part taken along line CC of FIG. 1;

FIG. 9 is a cross-sectional view of a principal part taken along line CC in FIG. 1;

FIG. 10 is a sectional view of a principal part taken along line CC of FIG. 1;

FIG. 11 is a sectional view of a principal part taken along line CC of FIG. 1;

FIG. 12 is a sectional view of a principal part taken along line CC of FIG. 1;

FIG. 13 is a sectional view of a main part of the sorting unit A.

FIG. 14 is a cross-sectional view of a main part of a sorting unit showing another embodiment.

FIG. 15 is a longitudinal sectional view of a main part thereof.

FIG. 16 is a cross-sectional view of a main part of a sorting unit according to another embodiment.

FIG. 17 is a cross-sectional view of a main part of a sorting unit showing another embodiment.

FIG. 18 is a cross-sectional view of a main part of a sorting unit showing another embodiment.

FIG. 19 is a plan view of a sorting unit according to another embodiment.

FIG. 20 is a plan view of a sorting unit according to another embodiment.

FIG. 21 is a sectional view taken along line GG of FIG. 3;

FIG. 22 is a sectional view taken along line HH of FIG. 3;

FIG. 23 is a plan view of a sorting unit according to another embodiment.

24 is a sectional view taken along the longitudinal direction of FIG.

FIG. 25 is a sectional view similar to FIG. 24;

FIG. 26 is a plan view of a sorting unit according to another embodiment.

FIG. 27 is a cross-sectional view along the longitudinal direction of FIG.

FIG. 28 is a cross-sectional view along the width direction of FIG. 26;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wire mesh for sorting and remaining rice discharge 2 Kernel discharge chute 3 Tank 4 Kernel supply port 5 Stone discharge chute 6 Crank arm 7 Link 8 Motor 9 Fan case 10 Partition plate 12 Sorting fan 13 Fan for remaining rice discharge 14 Sorting fan Motor 15 Residual rice discharge fan motor 22 Stone pool 24 Stone discharge shutter 28 Sorting wire mesh 29 Residual rice discharge wire mesh 38 Residual rice discharge shutter 39 Residual rice discharge port

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tomohiro Sakashita 2-1221-2-6 Ushijima Honcho, Toyama City, Toyama Prefecture Limited company Marumas Giken (72) Inventor Yuichi Haruki 2-1221-2-6 Ushijima Honcho, Toyama City, Toyama Prefecture Limited company Marmas Giken F term (reference) 4D021 FA09 GA02 GA08 GA12 GA13 GA14 GA16 GA20 GA23 GA27 GB01 HA02 HA10

Claims (9)

[Claims] 1. A sorting wire net whose front is inclined low is provided with a remaining rice discharging wire mesh inclined in the same direction as the sorting metal mesh adjacent via a standing side plate, and a rear portion of the sorting wire mesh is narrowed so that a stone pool portion. Forming, further, a fan case with a built-in fan is attached to the lower part of the sorting wire mesh and the remaining rice discharging wire mesh to form a sorting portion, and the fans inside the fan case are separately provided for sorting and for discharging the remaining rice, A rock removing sorter, wherein a swing mechanism is connected to the sorter so as to swing the sorter obliquely up and down. 2. A sorting wire net having a lower front slope and a remaining rice discharging wire mesh inclined in the same direction as the adjacent sorting metal net via an upright side plate. And forming a remnant rice discharge port on the side plate adjacent to the remnant rice discharge wire mesh of the sorting wire mesh at a position in front of the stone pool portion, so that the reticulated rice mesh side and the remnant rice discharge wire mesh side are formed. A fan case with a fan inside is installed at the lower part of the sorting wire mesh and the remaining rice discharging wire mesh to form a sorting portion, and the fans inside the fan case are separately provided for sorting and for removing remaining rice. A rocking mechanism is connected to the sorting unit to swing the sorting unit up and down diagonally. 3. A sorting wire net having a lower front inclined with a remaining rice discharging wire mesh in the same direction as the adjacent sorting wire mesh via an upright side plate and having a larger inclination angle than the sorting wire mesh. A stone pool is formed by narrowing the rear part of the wire mesh, and a fan case with a built-in fan is attached to the sorting wire mesh and the lower part of the remaining rice discharging wire mesh to form a sorting portion, and a fan inside the fan case is sorted. And a rocking mechanism is connected to the sorting unit to swing the sorting unit up and down diagonally. 4. The stone removing and sorting apparatus according to claim 1, wherein the inside of the fan case is partitioned into a sorting fan side and a remaining rice discharging fan side. 5. The stone removing and sorting apparatus according to claim 1, wherein the sorting fan and the remaining rice discharging fan are separately driven. 6. The apparatus according to claim 5, wherein the sorting fan and the remaining rice discharging fan are driven in opposite directions.
The stone sorter described. 7. The stone removing and sorting apparatus according to claim 1, further comprising a device for injecting air forward on a rear side of the remaining rice discharging wire netting. 8. The stone removing and sorting apparatus according to claim 1, wherein the sorting wire mesh is tilted toward the remaining rice discharging wire mesh. 9. The stone removal sorter according to claim 1, further comprising a unit configured to discharge the stones collected in the stone sump according to the number of times of activation or the operation time of the apparatus. apparatus.