JPH09299882A - Sorting machine for rice of small grain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a residual cleaned rice from being generated with a mechanical design to properly change the elevation of a hopper for storing the cleaned rice, if necessary by additionally installing a freely detachable hopper for compensating for the elevation, in a sorting machine for rice of small grain equipped with a hopper for storing rice which communicates with the lower part of the machine surrounded by a cylindrical sorting net. SOLUTION: The sorting machine B for rice of small grain for a mini-rice cleaning plant is equipped with a sorting chamber 26 for rice of small grain extending vertically surrounded by a sorting net 23, and the top of the sorting chamber 26 communicates with a cleaned rice discharge trough through a cleaned rice discharge port, while the bottom communicates with a hopper 21 for storing the cleaned rice through a cleaned rice supply port 29. In addition, a shutter 40 which is opened by a lever is installed on the hopper 21, and at the same time, a freely detachable hopper 21B for compensating for the elevation is additionally provided on the hopper 21. Thus the position of the hopper 21 is allowed to match the position of the cleaned rice discharge port. Further, a delivery port 105 for residual rice is provided on the inclined face at the bottom of the hopper 21 to enable complete discharge or the residual rice remaining at the lower part of the sorting chamber 26 to the outside of the sorting machine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small rice sorter for selecting small rice such as broken rice mixed in white rice.

[0002]

2. Description of the Related Art A small rice sorter is surrounded by a cylindrical sorting net,
And a small rice sorting room with a built-in spiral blade for deep-fried food,
It is provided with a polished rice hopper that communicates with a lower portion of the small rice sorting chamber, and a white rice discharge port provided in an upper portion of the small rice sorting chamber.

The polished rice hopper of this small rice sorting machine is arranged in the vicinity of the polished rice discharge port of the rice polishing machine, and the polished rice discharged from the polished rice discharge port falls into the polished rice hopper and the small rice sorting chamber. Run down to the bottom.

After that, the white rice rises in the small rice sorting chamber by the rotation of the fried grain spiral blade, and during the rising, small rice such as broken rice is discharged from the outside through the mesh of the sorting net, and only normal white rice is discharged. Discharged from the outlet.

[0005]

The small rice sorter of the conventional example has the following problems. (1) It is not possible to adjust the height of the white rice hopper. Therefore, if the position of the white rice discharge port of the rice polishing machine is considerably higher than the position of the white rice hopper, the white rice discharged from the white rice discharge port will scatter and all the white rice cannot be stored in the white rice hopper. There's a problem. Further, when the white rice is lifted by a human power and supplied into the white rice hopper, if the height of the hopper is too high for the worker, it becomes hard work and it becomes difficult for the weak person to carry the white rice. (2) When the supply of white rice from the white rice hopper is stopped,
Although the spiral blades for fried grains are rotating, the white rice in the lower part of the small rice sorting chamber remains without being fried and so-called residual white rice occurs. Therefore, when the device is not operated for a long period of time, or when the rainy season occurs, there are problems such as deterioration of the remaining white rice and damage of insects.

(3) When the continuous operation is carried out, the effective area of the mesh is gradually reduced because the small rice is caught in the mesh and the sorting efficiency is lowered. Therefore, the small rice sorting chamber must be disassembled to remove the small rice.

In view of the above-mentioned circumstances, the present invention is to make it possible to appropriately change the height of the hopper for polishing white rice and to prevent the occurrence of residual white rice. Another object is to completely eliminate the clogging of the screening net.

[0008]

The present invention relates to a small rice sorter provided with a small rice sorting chamber surrounded by a cylindrical sorting net and a polished rice hopper communicating with a lower portion of the small rice sorting chamber;
A small rice sorter characterized in that a detachable auxiliary height hopper is stacked on the polished rice hopper. The present invention relates to a small rice sorting machine provided with a small rice sorting chamber surrounded by a cylindrical sorting net and a white rice hopper connected to a lower portion of the small rice sorting chamber; A supplementary height hopper is installed in a pile, and on the lower slope of the white rice hopper,
A small rice sorting machine, which is provided with a remaining rice outlet.

The present invention relates to a small rice sorting machine provided with a small rice sorting chamber surrounded by a cylindrical sorting net and a white rice hopper connected to the lower part of the small rice sorting chamber; A small rice sorter characterized in that a detachable auxiliary height hopper is provided in a stack, and a small rice scraping means for eliminating clogging is provided outside the cylindrical sorting net.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Spiral blades for fried grain are inserted in a small rice sorting chamber surrounded by a cylindrical sorting net. The lower part of this small rice sorting chamber communicates with the white rice hopper, and the upper part communicates with the white rice discharge port. The bottom slope of this hopper is provided with a residual rice outlet for discharging residual white rice. This remaining rice outlet is equipped with a remaining rice discharge gutter.

The polished rice hopper has a fitting portion for stacking the supplementary height hopper. The supplementary height hopper is variously formed in correspondence with the position of the white rice discharge port of the rice mill, and is classified into, for example, a small supplementary height hopper, a medium-sized supplementary height hopper, a large-sized supplementary height hopper, etc., depending on the height difference. This supplementary height hopper is appropriately selected as needed and is placed over the polished rice hopper.

On the outside of the screening net, there is provided a rice scraping device for eliminating clogging. The rice scraping device is, for example, a concentric ring loosely fitted to a cylindrical screening net. A guide and the ring guide, and
And a coil spring pressed against the outer peripheral surface of the cylindrical selection net.

By moving the ring guide up and down, the coil spring slides and the rice grains caught in the mesh are efficiently scraped off. In addition, if this ring guide is connected to the operating rod protruding outside the machine via the arm part,
The coil spring can be slid only by sliding the operating rod from outside the machine.

[0014]

Embodiment 1 A first embodiment of the present invention will be described with reference to FIGS. The mini rice mill 1 is composed of a rice mill A, a small rice sorter B, and a white rice weighing machine C.

In this rice polishing machine A, the whitening roll 12 is rotated by the drive motor 11 to move the raw material hopper 13 to the whitening chamber 1.
The raw material, ie, brown rice R, which drops into the inside of 4, is circulated through the vertical circulation path 15, the raw material hopper 13, and the whitening chamber 14 in this order for whitening. After the raw material R is refined to a predetermined whiteness to become white rice WR,
From the white rice outlet 16 to the white rice hopper 2 of the small rice sorter B
1 is supplied.

The small rice sorter B has a small rice sorting chamber 26 surrounded by the sorting net 23, a fried grain spiral blade 24 inserted in the small rice sorting chamber 26, and a small rice drop on the outer periphery of the sorting net 23. And a cover 30 surrounding and enclosing the space S.

The sorting net 23 is formed of a cylindrical perforated plate, and the lower part thereof is fixed to the mounting plate 34. The size and number of the meshes 25 are appropriately selected according to need,
As the size of the mesh 25, for example, the length L in the circumferential direction is 15 to 20 mm and the width W in the axial direction is 1.7 to 1.8 m.
The size of m is selected.

The small rice sorting chamber 26 extends vertically,
An upper part thereof communicates with a white rice discharge gutter 28 through a white rice discharge port 27, and a lower part thereof communicates with a white rice tension hopper 21 through a white rice supply port 29.

The small rice drop space S between the sorting net 23 and the cover 30 is a small rice swash plate 3 provided in the lower portion of the small rice sorter 20.
It is divided by 1, and the lower end of the small rice swash plate 31 communicates with the small rice discharge port 32. The inclination angle θ of the swash plate 31 is appropriately selected as needed.

The mesh 25 of the sorting net 23 is provided only above the small rice swash plate 31 and is not provided below the small rice swash plate 31.

A drive motor 36 is provided in the drive source chamber 35 below the small rice swash plate 31. This drive motor 36 is provided with a belt 37 for the spiral blade 2
The vertical axis 24S of 4 is rotated. Since the drive source chamber 35 is surrounded by the small rice swash plate 31, the lower portion 23B of the sorting net 23, the cover 30, and the mounting plate 34, invasion of small rice, dust and the like is prevented. Therefore, since the drive motor 36 is not exposed to rice, dust, etc., normal operation can be ensured.

A shutter 39 is attached to the white rice hopper 21.
The shutter 39 is opened and closed by a lever 40. The hopper 21 corresponds to the height of the white rice discharge port 16 of the rice polishing machine A, and the height a from the floor surface F is, for example, 25 cm. The hopper 21 can be filled with white rice having a standard capacity, for example, 5 to 10 kg, and has a function of a communication tank for supplying the white rice discharged from the rice polishing machine to the small rice sorter. The hopper 21 is provided with a fitting portion 41 for stacking supplementary height hoppers 21A and 21B described later.

The cover 30 is provided with a cooling means for cooling the white rice WR in the small rice sorting chamber 26.
This cooling means is appropriately selected as needed, but for example, a cooler 1 having a power switch (not shown) different from the power switch of the rice sorter and capable of adjusting the temperature is used.

The white rice weighing machine C comprises a white rice lifting section 45 having an elevator (not shown), and a weighing section 47 for providing a predetermined amount of white rice in a white rice bag 46. The weighing section 47 is provided with an electronic scale 48, a weighing platform 49, a rice tank with a shutter (not shown), and an operation panel (not shown).

The operation of this embodiment will be described. Since the position of the white rice discharge port 16 corresponds to the position of the white rice hopper 21, here, the fitting portion 21a of the white rice hopper 21 is attached to the supplementary height hopper. 21A and 21B are not inserted. After the raw material R, that is, brown rice is put into the raw material hopper 13 of the rice polishing machine A and the drive motor 11 is started, the shutter 3
Open. Then, the raw material R is refined to a desired whiteness while being circulated through the whitening chamber 14, the vertical circulation path 15, and the raw material hopper 13 in this order to become white rice WR.

The white rice WR falls from the white rice discharge port 16 into the white rice hopper 21 of the small rice sorter B. This time,
Since the position of the white rice discharge port 16 faces the hopper 21, all the white rice WR smoothly pass through the hopper 21 and are supplied to the small rice sorter B.

The power switch SW of the rice sorter B is turned on, the vertical axis 24S is rotated, the lever 40 is pulled, the shutter 39 is opened, and the white rice discharge port 16 of the rice mill is opened. Then, the white rice WR falls into the hopper 21, passes through the hopper, rotates in the small rice sorting chamber 26 by the spiral grain 24 for lifting grain, and rises while being lifted to reach the white rice discharge port 27, It is supplied to the hopper (not shown) of the white rice weighing machine C from the white rice discharge gutter 28.

At this time, the broken rice SR mixed in the raw material WR falls from the mesh 25 into the small rice drop space S, and the dropped small rice is discharged from the small rice discharge port 32 through the small rice swash plate 31 to the outside of the machine.

Further, the power switch of the cooler 1 is turned on to start the cooler to cool the small rice drop space S, and at the same time, the cold air CA collides with the sorting net 23 to cool the sorting net. Then, the white rice WR in the small rice sorting chamber 26 is gradually cooled while rising, so that the temperature increased by the whitening pressure of the white rice WR can be lowered. Therefore, white rice W
It is possible to prevent deterioration of the taste of R.

That is, the white rice WR falling from the white rice discharge port 16 of the rice polishing machine A into the white rice tension hopper 21 has a temperature rise of about 10 to 15 ° C. from the brown rice temperature due to the whitening pressure.
If the white rice WR is packed in the white rice bag 46 in this state, the adherent bran and the like will be oxidized and the taste will be deteriorated. However, if the white rice WR is cooled sufficiently before being packed and the white rice WR is brought close to room temperature, the oxidation can be prevented. Degradation in taste does not occur.

The cooling temperature of the cooler 1 is appropriately selected according to need, but cracking occurs in the white rice WR when rapidly cooled, so it is necessary to adjust to a temperature at which it is gradually cooled.

The white rice WR supplied to the white rice weighing machine C rises by the elevator of the white rice elevator 45 and reaches the rice tank of the weighing unit 47.

The shutter of the rice tank is opened and the weighing platform 49 is opened.
The white rice WR is dropped into the upper white rice bag 46, and the shutter is closed when the electronic scale 48 shows a predetermined weight, for example, 10 kg. Then, the white rice bag 46 is removed from the weighing platform 49 and replaced with an empty white rice bag 46.

[0034]

[Embodiment 2] A second embodiment of the present invention will be described with reference to FIG. 5. However, the difference from the first embodiment is that the height b, for example, b = 250 mm of That is, the medium-sized supplementary height hopper 21A is provided in an overlapping manner. The hopper 21A has an insertion portion 51 formed in the lower portion, and is set by attaching the insertion portion 51 to the fitting portion 41 of the white rice tension hopper 21.

The distance Y between the upper end of the hopper 21A and the floor surface F is, for example, 500 mm.
Since it is larger than the distance a between the upper end of No. 1 and the floor surface F, it can correspond to the white rice discharge port at a position higher than the white rice discharge port 16 of the rice polishing machine A of the first embodiment. In addition, the white rice WR taken out from the rice polishing machine into another container or bag is manually supplied to the small rice sorter again, and when the small rice is desired to be removed, the height of the hopper 21A, the tank capacity, and the like can be supplied manually. be able to.

[0036]

Third Embodiment A third embodiment of the present invention will be described with reference to FIG. The difference between this embodiment and the first embodiment is as follows. (1) The rice milling machine is a large single-passing rice milling machine A2, and the white rice discharge port 16B is located at the upper part of the machine body. In addition, 11B
Is a drive motor, and 13B is a raw material hopper.

(2) White rice hopper 2 of small rice sorter B
1, a large auxiliary hopper 21B having a height C, for example, C = 450 mm, is stacked. The hopper 21B has an insertion portion 56 formed in the lower portion, and is set by attaching the insertion portion 56 to the fitting portion 41a of the white rice stretched hopper 21.

The distance Z between the upper end of the hopper 21B and the floor surface F is, for example, 700 mm, which is larger than the distance Y between the upper end of the medium-sized auxiliary hopper 21A of the second embodiment and the floor surface F. It is possible to correspond to the white rice discharge port 16B located at a position higher than the white rice discharge port 16 of the example rice milling machine A.

(3) Instead of using the polished rice weighing machine C, a large large polished rice bag 46B was used. This large white rice bag 46
The white rice discharge gutter 28 located above the small rice sorter B by B
The space under B can be fully utilized to store a large amount of white rice at once. Therefore, unlike the case where a small white rice bag is used, it is not necessary to replace the white rice bag until one rice polishing operation is completed.

[0040]

Fourth Embodiment A fourth embodiment of the present invention will be described with reference to FIGS. The difference between this embodiment and the first embodiment is that a remaining rice outlet 100 is provided for discharging residual white rice remaining in the lower part of the small rice sorting chamber. This remaining rice outlet 1
00 is provided on the bottom slope 21b of the polished rice hopper 21 on the polished rice supply port 29 side and communicates with the residual discharge gutter 105. The outlet 100 is opened and closed by a shutter plate 101 that slides along the slope 21b. The shutter plate 101 is fixed by a wing nut 102.

When the supply of the white rice WR from the white rice hopper 21 into the small rice sorting chamber 26 of the small rice sorting machine B is stopped,
Even if the spiral blade 24 for fried grain is rotating, fried grain cannot be fried and usually remains as the residual white rice XR in the lower part of the small rice sorting chamber 26. However, in the embodiment, the remaining rice outlet 100
Therefore, when the shutter plate 101 is slid in the direction of the arrow A101 after stopping the supply of the polished rice from the polished rice hopper 21 to the position indicated by the chain line, the remaining rice outlet 100 is opened, and the spiral grain blade 24 for centrifuging is centrifuged. Residual white rice XR that is agitated by force, for example, 150 g to 200 g of residual white rice X
R is completely discharged to the outside of the machine in a few seconds through the outlet 100 and the remaining rice discharge gutter 105.

The rice sorter B of this embodiment has the following features. (1) Since the remaining net take-out port is not provided in the sorting net itself, but it is provided on the bottom slope of the white rice overhanging hopper, the structure is simple, the action is reliable, and there is no fear of failure. (2) It is possible to completely prevent the deterioration of the remaining white rice and the damage of insects when the device is not used for a long period of time or during the rainy season. (3) When selecting glutinous rice or the like, it is possible to completely prevent mixing with ordinary rice.

[0043]

[Fifth Embodiment] A fifth embodiment of the present invention will be described with reference to FIGS. The difference between this embodiment and the first embodiment is as follows. (1) A large-sized supplementary hopper 21C is provided in the polished rice hopper 21. This hopper 21C is the same as the hopper 21B of the third embodiment. (2) The drive motor 36C of the vertical axis 24S of the blade 24 is of a direct coupling type and is provided on the upper part of the machine body.

(3) The cooling fan device 60 is used as the cooling means for cooling the white rice WR in the small rice sorting chamber 26. In this cooling fan device 60, the cooling fan 61 provided in the small rice drop space S and the wind of the cooling fan 61 separates the sorting net 23.
And a wind direction plate 62 for guiding so as to hit.

The inclination angle θ, the size, the installation position, etc. of the wind direction plate 62 are appropriately selected as required. For example, the inclination angle or the like so that the pressure air blows over half the length of the small rice sorting chamber 26. Is adjusted.

Immediately after the white rice WR has been whitened by the rice polishing machine A, the temperature has risen by 10 to 15 ° C. due to the whitening pressure. In this state, the white rice WR is discharged from the white rice outlet to the hopper of the small rice sorter B. 21C, 21, is supplied.

The power switch SW of the rice sorter B is turned on, the vertical axis 24S is rotated, and the power switch of the cooling fan 61 (not shown) is turned on.

Then, the white rice WR in the hoppers 21C, 21 flows through the white rice supply port 29 into the small rice sorting chamber 26 and rises while being lifted by the rotating spiral blades 24, and the small rice SR such as broken rice It falls from the mesh 25 into the small rice drop space S and is discharged from the small rice outlet 32 through the small rice swash plate 31 to the outside of the machine.

The pressure air A65 of the outside air temperature is generated by the rotation of the cooling fan 61. The pressure air A65 is generated by the wind direction plate 6.
2 is guided by 2 and collides with the screening net 23 to cool the screening net 23.

A part of the pressured air A65 enters the small rice sorting chamber 26 through the mesh 25, contacts the white rice WR to remove heat, and passes through the gap between the white rice WR generated by the rotation of the blades 24. Get out of the room.

In this way, the pressurized air A65 passes through the small rice sorting chamber 26, whereby the white rice WR is gradually cooled, and the temperature thereof is lowered until it is discharged from the white rice discharge trough 28.

This temperature decrease is slightly different between summer and winter, but can be decreased by about 3 ° C to 5 ° C. Therefore, since the white rice WR can be packaged in a bag at a temperature rise of about 7 to 10 ° C. from room temperature, deterioration of the taste of the white rice can be prevented.

The pressure air A65 of the cooling fan 61 cools the white rice at the same time, and at the same time, exhausts the attached rice bran and the free rice bran on the surface of the rice from the mesh 25 on the opposite side to which the air blows.
Therefore, it is also effective for polishing rice on the surface of white rice, and it is possible to obtain glossy white rice with less sticking bran.

The power switch of the cooling fan 61 may be used together with the small rice sorter B, but if it is specially provided as in this embodiment, when cooling is not required, for example, white rice at room temperature is sorted into small rice. When the machine is put on a machine, the cooling fan 61 may be stopped to prevent supercooling of white rice.
In the figure, reference numeral 65 is a flange of the seam of the sorting net 23.

[0055]

[Sixth Embodiment] A sixth embodiment of the present invention will be described with reference to FIGS. The difference between this embodiment and the fifth embodiment is that
It is equipped with a means for scraping off small rice to eliminate clogging.

The small rice scraping means scrapes off the small rice SR protruding from the mesh 25 of the sorting net 23 to eliminate the clogging. For example, this means 70 is loosely fitted to the cylindrical sorting net. A ring guide 72, a coil spring 74 that is inserted into the ring guide 72 and is pressed against the outer peripheral surface of the cylindrical selection net, is connected to the ring guide 72 via an arm portion 72C, and is external to the machine. And an operating rod 71 projecting to the.

The spring constant, wire diameter, coil width LW, etc. of the coil spring 74 are appropriately selected as required. For example, the diameter D of the screening net 23 is 150 mm and the length of the stitch 25 in the circumferential direction. L is 15 to 20 mm, and axial width W is 1.7.
In the case of ~ 1.8 mm, a coil width LW of 12 mm is adopted.

The ring guide 72 is a pair of semicircular members 72.
The fixed portion 72b is provided at one end and the arm portion 72C is provided at the other end. A rod holding portion 72d that supports the operation rod 71 is provided at the tip of the arm portion 72C. The material, size, etc. of the ring guide 72 are appropriately selected according to need, and for example, a stainless ring guide 72 having a diameter LD = 170 mm is used.

One end of the coil spring 74 is locked to the fixed portion 72b of the guide 72a, and the other end is the arm portion 72C.
Fixed to. Arm portions 72C, 7 of the ring guide 72
2C is fixed by rivets or the like.

While the small rice sorter B is in operation, the small rice SR has mesh 2
When it is sandwiched between 5, the effective area of the mesh 25 gradually decreases,
The sorting effect is reduced.

At this time, when the operation lot 71 is slid in the direction of the arrow A71, the coil spring 74 tightening the outer peripheral surface 23a of the selection net 23 slides while rubbing the outer peripheral surface 23a and protrudes from the stitch 25. It collides with the small rice SR that is present and applies an external force to the small rice SR.

At this time, the coil spring 74 is pressed against the small rice SR while inclining, so that the horizontal and vertical forces are applied to the small rice SR. Therefore, when an external force is applied only from one direction. In comparison, it is extremely easy to collapse. Therefore, the small rice drops easily from the mesh 25, so that the clogging can be efficiently eliminated.

This means 70 has a simple structure and is easy to operate, and at any time during operation or when stopped, the operating rod 71 is moved up and down 2 to 3 times to remove the clogged rice grains and to always maintain it. The best sorting efficiency can be obtained.

[0064]

The present invention has been configured as described above.
It has the following remarkable effects. (1) Since the removable high-mounting hopper is stacked on the polished rice hopper, the position of the hopper can correspond to the position of the polished rice discharge port of the rice polishing machine.

(2) Since the remaining rice outlet is provided on the bottom slope of the polished rice hopper, the remaining rice in the lower part of the small rice sorting chamber can be completely discharged to the outside of the machine. Therefore, it is possible to prevent the deterioration of the eating quality and the harmful effects of insects caused by the residual white rice.

(3) Since the small rice scraping means is provided on the outer periphery of the screening net, the small rice stuck in the net can be easily removed. Therefore, since the effective area of the mesh can be used at all times to sort, the small rice can be sorted efficiently.

(4) The small rice scraping means includes a ring guide loosely fitted to the cylindrical selection net, and a coil spring inserted into the ring guide and pressed against the outer peripheral surface of the cylindrical selection net. When the ring guide is slid, the coil spring obliquely abuts on the small rice protruding from the mesh, and the vertical and horizontal forces are applied to the small rice. Therefore, the rice grains are easily displaced and come out of the mesh, so that the rice grains can be scraped off efficiently.

[Brief description of drawings]

FIG. 1 is a partial sectional front view showing a first embodiment of the present invention.

FIG. 2 is a plan view of the small rice sorter in FIG.

3 is a sectional view taken along line III-III in FIG.

4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a front view showing a second embodiment of the present invention.

FIG. 6 is a front view showing a third embodiment of the present invention.

FIG. 7 is a front view showing a fourth embodiment of the present invention.

8 is a cross-sectional view taken along the line VIII-VIII of FIG. 7, which is an enlarged view of a main part thereof.

FIG. 9 is a front view showing a fifth embodiment of the present invention.

10 is a sectional view taken along line XX of FIG.

11 is a sectional view taken along line XI-XI of FIG.

FIG. 12 is a perspective view showing a sixth embodiment of the present invention.

13 is a sectional view taken along line XIII-XIII in FIG.

14 is a diagram showing a part of an enlarged cross section taken along line XIV-XIV of FIG.

FIG. 15 is an enlarged view of a main part of FIG.

[Explanation of symbols]

 10 Remaining rice outlet 16 White rice discharge 21 White rice hopper 21A Medium size supplementary high hopper 21B Large supplementary hopper 23 Sorting mesh 25 Mesh 26 Small rice sorting room 60 Small rice sorting room cooling means 70 Small rice scraping means A Circulating rice milling machine B Small rice sorter C White rice weighing machine R Raw material WR White rice SR Small rice XR Remaining rice

Claims (6)

[Claims] 1. A small rice sorter equipped with a small rice sorting chamber surrounded by a cylindrical sorting net and a white rice hopper connected to the lower part of the small rice sorting chamber; detachable from the white rice hopper. A small rice sorter characterized by stacking various supplementary height hoppers. 2. A small rice sorter comprising a small rice sorting chamber surrounded by a cylindrical sorting net and a white rice hopper connected to the lower portion of the small rice sorting chamber; detachable to the white rice hopper. A small rice sorter characterized in that a stack of supplementary high hoppers is provided, and a remaining rice take-out port is provided on the lower slope of the polished rice hopper. 3. A small rice sorting machine comprising a small rice sorting chamber surrounded by a tubular sorting net and a white rice hopper connected to the lower portion of the small rice sorting chamber; detachable to the white rice hopper. A small rice sorter characterized in that different supplementary hoppers are stacked, and a small rice scraping means for eliminating clogging is provided outside the cylindrical sorting net. 4. A small rice sorting machine comprising a small rice sorting chamber surrounded by a cylindrical sorting net and a white rice hopper connected to a lower portion of the small rice sorting chamber; detachable from the white rice hopper. A stack of supplementary high hoppers, a remaining rice outlet is provided on the lower slope of the white rice hopper, and a small rice scraping device for eliminating clogging is provided outside the cylindrical sorting net. A small rice sorter featuring. 5. A small rice scraping means, a ring guide loosely fitted to a cylindrical selection net, a coil spring inserted into the ring guide and pressed against an outer peripheral surface of the cylindrical selection net.
The small rice sorter according to claim 3 or 4, wherein the small rice sorter comprises: 6. The rice sorter according to claim 5, wherein the ring guide is connected to an operation rod protruding outside the machine.