TW201414545A - Foreign body sorting machine - Google Patents

Abstract

An object of the present invention is to provide a foreign body sorting machine which, with a single apparatus, can sort and separate small foreign bodies and large foreign bodies intermixed with granular products such as polished white rice. The present invention comprises: a first sorting section, having a fixed cylinder in which are formed a multitude of holes smaller than the grain size of the granular product, and a first rotating shaft, which is disposed inside the fixed cylinder and to which are secured a plurality of stirring members, the first sorting section discharging small foreign bodies from the holes, while transporting the granular product from which with these small foreign bodies have been removed to the other end of the fixed cylinder; and a second sorting section, having a rotating cylinder in which are formed a multitude of holes that are slightly larger than the grain size of the granular product, and a second rotating shaft to which the rotating cylinder is secured, the second sorting section discharging the grains of the granular product from the holes, while discharging large foreign bodies from the other end of the fixed cylinder, wherein the first sorting section and the second sorting section are arranged in series, and the first rotating shaft and the second rotating shaft are coupled via a shift mechanism that reduces the rotational speed of the first rotating shaft.

Description

Foreign matter sorting machine

The present invention relates to a foreign matter sorting machine which selects foreign matter mixed in a granular material such as grain, and particularly relates to a foreign matter such as broken rice or glutinous grains which is suitable for sorting and removing white rice mixed after rice milling.

A mesh screen having a cylindrical shape or a polygonal tube shape is known as an apparatus for selecting a foreign matter mixed in a grain such as white rice (see Patent Documents 1 and 2).

Patent Document 1 describes an apparatus for selecting a small foreign matter such as broken rice mixed in a grain. In this apparatus, grain is supplied into a rotating or fixed cylindrical mesh screen, and small foreign matter is discharged from the mesh of the mesh to select small foreign matter such as broken rice mixed in the grain.

Patent Document 2 describes a device for selecting a large foreign matter such as a sputum particle which is mixed in a grain. In this apparatus, grain is supplied into a rotating cylindrical mesh screen, and the whole grain of the grain is discharged from the mesh of the mesh, and a large foreign matter such as a ruthenium which is mixed in the grain is selected.

However, in order to select a small foreign matter and a large foreign matter mixed in the grain, it is necessary to provide the above two devices, and the grain is sequentially fed to the two devices, so it is necessary to secure a large space for arranging the above devices.

Further, in order to carry out the above-described sorting work efficiently, it is necessary to separately provide a device for transporting white rice from the first device to the second device.

[Previous Technical Literature]

[Patent Literature]

Patent Document 1: Japanese Laid-Open Patent Publication No. 2009-178679

Patent Document 2: Japanese Patent Laid-Open No. Hei 9-66264

Accordingly, an object of the present invention is to provide a foreign matter sorting machine capable of selecting small foreign matter and large foreign matter mixed in granular matters such as grains by one apparatus.

In order to achieve the object, the foreign matter sorting machine of the present invention is a foreign matter sorting machine that selects foreign matter mixed in the granular material, and the foreign matter sorting machine is characterized by comprising: a first sorting portion having a specific granular material; a fixed cylinder having a small hole and a first rotating shaft provided in the fixed cylinder and having a plurality of stirring members; and a second sorting portion having a hole formed larger than the whole grain of the granular material a rotating cylinder and a second rotating shaft on which the rotating cylinder is placed; and a shifting mechanism that couples the first rotating shaft and the second rotating shaft to decelerate a rotational speed of the first rotating shaft, and the first selecting unit By the rotation of the agitating member, the granular material is stirred and carried from the one end side to the other end side of the fixed cylindrical body, and foreign matter smaller than the whole grain of the granular material is discharged from the hole formed in the fixed cylindrical body, and On the other hand, the granular material from which the foreign matter smaller than the whole granular material of the granular material is removed is carried out from the other end side of the fixed cylindrical body, and the second sorting portion is carried in from the one end side of the rotating tubular body from the first sorting The above solid The granular material carried out from the other end side of the fixed cylindrical body is discharged from the hole formed in the rotating tubular body by the rotation of the rotating tubular body, and is discharged from the other end side of the rotating tubular body. The whole granular foreign matter of the above granules.

In the present invention, the second selection unit further includes a partition plate, an end plate, and a guide plate disposed on the other end side of the rotary cylinder, and the partition plate is provided to partition the rotary cylinder in the axial direction. A part of the inner circumferential surface of the rotating cylinder is formed to be movable larger than the whole grain of the granular material. In the first notch of the opening for the movement of the foreign matter, the end plate includes a second notch that forms a discharge opening capable of discharging the large foreign matter in a positional relationship that is shifted from the movement opening in the rotation direction of the rotating cylinder. The guide sheet guides the large foreign matter flowing into the region between the partition plate and the end plate from the movement opening to the discharge opening.

In the invention, it is preferable that the rotating cylinder of the second sorting unit is a polygonal cylinder.

In the present invention, it is preferable that the hole of the rotating cylinder formed in the second sorting portion is a long hole that is inclined with respect to a direction orthogonal to an axis of the rotating cylinder so as to be rotated by the rotation of the rotating cylinder. The granules impart a force to move to the other end side.

In the present invention, it is preferable that the fixed cylindrical body of the first sorting portion is connected by a plurality of cylindrical bodies, and the sizes of the holes formed in the plurality of cylindrical bodies are different.

The foreign matter sorting machine of the present invention has a first sorting unit for selecting a small foreign matter mixed in the granular material and a second sorting portion for selecting a large foreign matter mixed in the granular material, so that it can be selected by a single device. Small foreign matter and large foreign matter mixed in the shape.

Further, in the foreign matter sorting machine of the present invention, since the first sorting unit and the second sorting unit are disposed in series, the apparatus for transporting the granular material from the first sorting unit to the second sorting unit is not required, and the structure is simple. , do not have to ensure a large set space.

Further, since the foreign matter sorting machine of the present invention connects the first rotating shaft and the second rotating shaft via the speed change mechanism, the two rotating shafts can be driven and rotated by one motor, and the power consumption can be suppressed.

In the foreign matter sorting machine of the present invention, if the second sorting portion has a partition plate disposed on the other end side of the rotating cylinder, the partitioning plate becomes an obstacle, and it is possible to prevent the granules from being granulated together with the foreign matter. The end plate side of the above rotating cylinder moves.

Further, in the foreign matter sorting machine of the present invention, even in the case where the granules of the granules flow into the region between the partitioning plate and the end plate, the rotation of the rotating cylinder is at a predetermined angle. During the period of time, since the granular material does not move to the other end side and stays in the same region, the entire granular material of the granular material can be reliably discharged from the hole formed in the rotating cylindrical body.

Therefore, according to the foreign matter sorting machine of the present invention, it is possible to prevent the granules of the granules from being discharged from the discharge opening together with the foreign matter larger than the granules of the granules.

In the foreign matter sorting machine of the present invention, the hole of the rotating cylinder formed in the second sorting portion is a long hole that is disposed obliquely with respect to a direction orthogonal to the axis of the rotating cylinder so as to be rotated by the rotating cylinder When the rotation force of the granular material is applied to the other end side by the rotation, even when the moving force of the granular material that is moved by the rear granular material is insufficient, the granular shape can be made. The object is surely moved to the other end side of the above-mentioned rotating cylinder.

In the foreign matter sorting machine of the present invention, the fixed cylindrical body of the first sorting portion is formed by connecting a plurality of cylindrical bodies, and the sizes of the holes formed in the plurality of cylindrical bodies are different, that is, the ratio can be more finely selected. A small, small foreign body of granules.

1‧‧‧Small foreign body selection department

2‧‧‧Great Foreign Object Selection Department

3‧‧‧ Feeding port

4‧‧‧Rotary valve

5‧‧‧ hopper

6‧‧‧Electric motor

11‧‧‧Fixed cylinder

11a‧‧‧1st cylinder

11b‧‧‧2nd cylinder

12‧‧‧1st rotating shaft

13‧‧‧ Impeller

14‧‧‧ long hole

15‧‧‧ discharge cylinder

16‧‧‧Small broken rice vents

17‧‧‧ Large broken rice export

21‧‧‧Rotating polygonal cylinder

22‧‧‧2nd rotation axis

23‧‧‧Transmission mechanism

24‧‧‧ long hole

26‧‧‧ Whole grain discharge

27‧‧‧糠 particle discharge cylinder

28‧‧‧糠 排 排

30‧‧‧ partition board

31‧‧‧End board

32‧‧‧Mobile opening

33‧‧‧Discharge opening

34‧‧‧Guideboard

Fig. 1 is a perspective view of a foreign matter sorter according to an embodiment of the present invention.

Fig. 2 is a plan view of the foreign matter sorter of Fig. 1;

Fig. 3 is a cross-sectional perspective view taken along line A-A of Fig. 2;

Fig. 4 is a cross-sectional view taken along line A-A of Fig. 2;

Fig. 5 is a cross-sectional view taken along line B-B of Fig. 2;

Fig. 6 is a perspective view of a large foreign matter selecting portion in a state in which a cover of an end portion is removed in the foreign matter sorting machine of Fig. 1;

7(a) to (b) are enlarged views of the larger foreign matter selecting portion.

Figure 8 is a cross-sectional view taken along line D-D of Figure 7(a).

Embodiments of the present invention will be described based on the drawings.

Fig. 1 is a perspective view showing a foreign matter sorter according to an embodiment of the present invention. Fig. 2 is a plan view showing the foreign matter sorting machine of Fig. 1. Fig. 3 is a perspective view showing the A-A section of Fig. 2; Fig. 4 is a cross-sectional view taken along line A-A of Fig. 2; Fig. 5 is a cross-sectional view taken along line B-B of Fig. 2; ,

In the foreign matter sorting machine of the present embodiment, a granular material such as a grain is used as a raw material, and a foreign matter smaller than the whole grain of the granular material (hereinafter referred to as "smaller foreign matter") and a whole grain larger than the granular material are selected. Large foreign matter (hereinafter referred to as "larger foreign matter").

Here, the white rice after the rice is used as a raw material, and the crushed rice, the pest, the shedding germ, etc. which are small foreign matter mixed in the white rice (hereinafter, referred to as "crushed rice, etc.") and the larger foreign matter are selected. The case of the granules will be described as an example.

The foreign matter sorting machine of the present embodiment includes a small foreign matter sorting unit 1 and a large foreign matter sorting unit 2 that is disposed in association with the small foreign matter selecting unit 1.

The small foreign object selection unit 1 includes a fixed cylindrical body 11 lying thereon, a first rotating shaft 12 disposed in the fixed cylindrical body 11 , and a first rotating shaft 12 fixed to the first rotating shaft 12 The plurality of impellers 13 are arranged such that the rotating shaft 12 rotates integrally.

In the fixed cylindrical body 11, a plurality of long holes 14 having a width smaller than that of the white rice are formed in a direction orthogonal to the axis of the fixed cylindrical body 11 over the entire circumference of the fixed cylindrical body 11. Here, the fixed cylindrical body 11 is connected by two cylindrical bodies, and the width of the long hole formed in the first cylindrical body 11a (in the present embodiment, the width is 1.5 mm and the length is 25 mm) is formed in the second cylinder. The width of the long hole of the body 11b (in the present embodiment, the width is 1.7 mm and the length is 25 mm) is small. In addition, in FIG. 3, illustration of the long hole formed in the said fixed cylindrical body 11 is abbreviate|omitted.

Below the fixed cylindrical body 11, a discharge cylinder 15 for discharging the broken rice discharged from the long hole 14 formed in the fixed cylindrical body 11 to the outside of the machine is disposed. The inside of the discharge cylinder 15 is partitioned into a region corresponding to the first cylindrical body 11a and the second cylindrical body 11b, and a small broken rice discharge port 16 and a large broken rice discharge port 17 are formed at the bottom of each region.

The larger foreign matter sorting unit 2 is provided with a section eight lying on the fixed cylindrical body 11 The edge-shaped rotating polygonal cylinder 21 and the second rotating shaft 22 disposed in the rotating polygonal cylinder 21 and fixed to the rotating polygonal cylinder 21 are provided.

The second rotating shaft 22 is coaxially coupled to the first rotating shaft 12 via a shifting mechanism 23 for decelerating the rotational speed of the first rotating shaft 12. Here, as the shifting mechanism 23, a conventionally known mechanism can be used.

On the entire circumference of the rotating polygonal cylinder 21, a plurality of elongated holes 24 having a width slightly larger than that of the white rice are formed in a direction orthogonal to the axis of the rotating polygonal cylinder 21 (in the present embodiment, the width is 5.0). Mm, length 45mm). In addition, in FIG. 3, illustration of the long hole 24 formed in the said rotating polygonal cylinder 21 is abbreviate|omitted by the surface.

The rotating polygonal cylinder 21 can be loaded with white rice from one end side, and a whole portion for discharging the entire granules discharged from the long holes 24 formed in the rotating polygonal cylinder 21 to the outside of the machine is provided below the rotating polygonal cylinder 21. Grain discharge port 26.

Further, on the side of the other end side end portion of the rotating polygonal cylinder 21, a particle discharge cylinder 27 is disposed, and the pellets discharged from the long holes 24 formed in the rotating polygonal cylinder 21 are discharged; Further, a sputum discharge port 28 for discharging the sputum particles to the outside of the machine is formed at a lower portion of the granule discharge cylinder 27.

As shown in FIGS. 3 to 5, the foreign matter sorting machine of the present embodiment is supplied with white rice fed to the feeding port 3 from the hopper 5 to the small foreign matter selecting portion 1 at a constant flow rate via the rotary valve 4.

The white rice that has been moved into the fixed cylindrical body 11 from one end is agitated by the impeller 13 that is rotated by the first rotating shaft 12 that is rotationally driven by the motor 6, and is transported from the one end side to the other end side. The discharge is performed from the long hole 14 formed in the fixed cylindrical body 11. In addition, as shown by the arrow in FIG. 5, the first rotating shaft 12 and the impeller 13 rotate clockwise as viewed from the side of the large foreign matter selecting unit 2.

In the foreign matter sorting machine of the present embodiment, the fixed cylindrical body 11 is configured by connecting the first cylindrical body 11a and the second cylindrical body 11b, so that small broken rice or the like is formed from the first circle. The long hole of the cylindrical body 11a is discharged, and large broken rice or the like is discharged from the long hole formed in the second cylindrical body 11b.

On the other hand, the white rice discharged and removed from the broken rice is carried out from the other end of the fixed cylindrical body 11, and is directly carried from one end to the rotation of the large foreign matter sorting portion 2 which is lying on the fixed cylindrical body 11. Multilateral cylinder 21.

The white rice that has been carried into the rotating polygonal cylinder 21 is moved toward the other end side in the rotating polygonal cylinder 21 by being pressed by the white rice from the rear. At this time, in the same direction as the first rotating shaft 12 The inside of the rotating polygonal cylinder 21 that is rotationally driven by the rotating second rotating shaft 22 is discharged from the long hole 24 formed in the rotating polygonal cylinder 21.

Here, in the foreign matter sorting machine of the present embodiment, it is necessary to reduce the rotational speed of the rotating polygonal cylinder 21 in the large foreign matter selecting unit 2 to 1/1 of the rotational speed of the impeller 13 in the small foreign matter selecting unit 1. 5 to 1/10, the second rotating shaft 22 is coupled to the first rotating shaft 12 via a speed change mechanism 23 for decelerating the rotational speed of the first rotating shaft 12, so that it can be rotationally driven by one motor 6. Both sides have the effect of suppressing power consumption.

On the other hand, the granules after the granules are discharged are discharged from the other end of the rotating polygonal cylinder 21.

In the above embodiment, the long hole 24 formed in the rotating polygonal cylinder 21 may be disposed to be inclined with respect to a direction orthogonal to the axis of the rotating polygonal cylinder 21 so as to be rotated by the rotating polygonal cylinder 21. The above-mentioned white rice is given a force to move to the other end side. According to this configuration, even when the moving force of the white rice moving to the other end side in the rotating polygonal cylinder 21 is suppressed by the white rice pressed from the rear, the white rice can be reliably pushed. The other end side of the above rotating cylinder.

Further, the first rotating shaft 12 and the second rotating shaft 22 may be coupled via the speed change mechanism 23, and need not necessarily be disposed coaxially.

Further, the shapes of the long holes 14 and 24 formed in the fixed cylindrical body 11 and the rotating polygonal cylinder 21 can be appropriately changed.

Further, the impeller 13 disposed in the fixed cylindrical body 11 is moved while stirring The structure of the white rice can be used, and a screw conveyor or the like can be used as long as it has the same function.

Further, the rotating polygonal cylinder 21 is not limited to the cross-sectional octagon, and the rotating cylindrical body can be used instead.

Next, the structure of the larger foreign matter selection section will be described in detail.

Fig. 6 is a perspective view of a large foreign matter selecting portion in a state in which a cover of an end portion is removed in the foreign matter sorting machine of Fig. 1; Fig. 7 is an enlarged view of a larger foreign matter selecting portion, Fig. 7(a) is an enlarged view of a portion C of Fig. 4, and Fig. 7(b) is a cross-sectional view taken along line E-E of Fig. 7(a). Fig. 8 is a cross-sectional view taken along line D-D of Fig. 7(a). Here, in FIG. 6, the illustration of the long hole formed in the rotating polygonal cylinder 21 is abbreviate|omitted by the surface. Further, as shown by the arrows in FIG. 6 and FIG. 8, the rotating polygonal cylinder 21 rotates clockwise as viewed from the other end side end where the granule discharge cylinder 27 is disposed.

The large foreign matter selecting unit 2 further includes an annular partitioning plate 30 disposed on the other end side of the rotating polygonal cylinder 21 and axially partitioning the inside of the rotating polygonal cylinder 21, and an annular partitioning plate disposed on the rotating polygonal cylinder The annular end 31 of the other end of the 21 .

A gap is formed in the partition plate 30, and a movement opening 32 as a granule of a large foreign matter mixed in the white rice is formed on a part of the inner circumferential surface of the rotating polygonal cylinder 21.

Further, the end plate 31 is provided with a notch, and a discharge opening 33 for the granules is formed in a positional relationship in which the movement opening 32 is slightly shifted in the rotational direction of the rotary polygonal cylinder 21.

Further, a guide plate 34 is disposed between the end portion of the discharge polygon housing 21 on the reverse rotation direction side of the discharge opening 33 and the partition plate 30, and the guide plate 34 will be provided from the movement opening 32. The region which flows into the region between the partition plate 30 and the end plate 31 is not guided to the discharge opening 33 from the swarf which is discharged from the long hole 24 formed in the rotating polygonal cylinder 21 in this region. As shown in FIG. 7(b), the guide plate 34 is disposed to be inclined with respect to the partition plate 30 and the end plate 31 so as to reliably discharge the granules in contact with the guide plate 34 from the discharge opening 33. . Here, the guide sheet 34 is formed by bending a part of the end plate 31 toward the partition plate 30 side. Further, the front end of the guide plate 34 and the partition plate 30 do not necessarily need to be in contact with each other, and a gap of a size in which the granules cannot pass may be provided between the two.

Here, the partition plate 30 and the end plate 31 may be replaced by a disc-shaped member. For a ring member having a certain width. At this time, the central portion of the circular plate may be formed of a transparent material such as acrylic.

According to the configuration of the large foreign matter selecting unit 2, the partition plate 30 is disposed on the other end side of the rotating polygonal cylinder 21, so that the partitioning plate 30 becomes an obstacle, and it is possible to prevent the whole grain of the white rice from being further upward with the granules. The board side moves.

Further, even when the whole grain of white rice flows from the movement opening 32 to the region between the partition plate 30 and the end plate 31, the white rice is rotated during the period in which the rotating polygonal cylinder 21 is substantially rotated. Since it does not move to the side of the end plate 31 and stays in the same area, the granules of this white rice can be reliably discharged from the long hole 24 formed in the said rotating polygonal cylinder 21.

Therefore, according to the large foreign matter selecting unit 2 described above, it is possible to prevent the whole grain of the white rice from being discharged from the discharge opening 33 together with the granules.

Further, the large foreign matter selecting unit 2 may be configured such that a plurality of the movement openings 32, the discharge opening 33, and the guide sheets 34 are provided in the circumferential direction. For example, a discharge opening and a guide plate are provided at a position half a turn from the movement opening 32, and a movement opening is newly provided on the reverse rotation direction side of the rotating polygonal cylinder 21 of the guide plate, and the partition plate is provided. The region between the 30 and the end plate 31 is further divided into two regions in the circumferential direction, and each time the rotating polygonal cylinder 21 is rotated by a half turn, the granules are discharged from the two discharge openings.

Further, the larger foreign matter selecting unit 2 may be a separate device for the small foreign matter selecting unit 1 as a foreign matter sorting machine for the purpose of reliably selecting a large foreign matter mixed in the granular material.

In this case, the second rotating shaft 22 may be driven to rotate by the motor 6 without passing through the first rotating shaft as long as the feeding port of the granular material is provided on one end side of the rotating polygonal cylinder 21 .

In the above-described embodiment, the case where the rice which has been milled rice is used as a raw material, and the crushed rice which is a foreign matter smaller than the whole grain of the white rice and the granule which is a large foreign matter are selected as an example, but the present invention is described as an example. The foreign matter sorting machine is not limited to white rice, and can be selected from various kinds of granules such as rice, wheat, beans, nuts and other small cereals such as cereals, beads, and beads, and tablets or capsules such as pharmaceuticals. Small foreign matter and larger foreign matter mixed in the granules.

The present invention is not limited to the above-described embodiments, and the configuration thereof can be appropriately changed without departing from the scope of the invention.

[Industry Utilization]

The foreign matter sorting machine of the present invention can select a small foreign matter and a large foreign matter mixed in the granular matter such as white rice by one device, so that the utilization value is extremely high.

1‧‧‧Small foreign body selection department

2‧‧‧Great Foreign Object Selection Department

3‧‧‧ Feeding port

4‧‧‧Rotary valve

5‧‧‧ hopper

6‧‧‧Electric motor

11‧‧‧Fixed cylinder

11a‧‧‧1st cylinder

11b‧‧‧2nd cylinder

12‧‧‧1st rotating shaft

13‧‧‧ Impeller

14‧‧‧ long hole

15‧‧‧ discharge cylinder

16‧‧‧Small broken rice vents

17‧‧‧ Large broken rice export

21‧‧‧Rotating polygonal cylinder

22‧‧‧2nd rotation axis

23‧‧‧Transmission mechanism

24‧‧‧ long hole

26‧‧‧ Whole grain discharge

27‧‧‧糠 particle discharge cylinder

28‧‧‧糠 排 排

Claims (5)

A foreign matter sorting machine for selecting a foreign matter mixed in a granular material, comprising: a first sorting portion having a fixed cylindrical body having a small hole smaller than a granular shape of the granular material, and an arrangement a first rotating shaft having a plurality of stirring members in the fixed cylinder; a second sorting portion having a rotating cylinder formed with a hole larger than the granules of the granular material, and a second cylindrical body for arranging the rotating cylinder a rotating shaft; and a shifting mechanism that couples the first rotating shaft and the second rotating shaft to decelerate a rotational speed of the first rotating shaft, wherein the first selecting unit is rotated from the fixed cylinder by the rotation of the stirring member One end side agitates and conveys the granular material to the other end side, thereby discharging foreign matter smaller than the whole grain of the granular material from the hole formed in the fixed cylindrical body, and on the other hand, removing the whole grain than the granular material The small foreign matter is carried out from the other end side of the fixed cylinder, and the second sorting unit carries the pellets that are carried out from the other end side of the fixed cylinder of the first sorting unit from one end side of the rotating cylinder. a rotating body formed from the rotating cylinder by the rotation of the rotating cylinder The hole discharges the granular material, and on the other hand, the foreign matter larger than the whole grain of the granular material is discharged from the other end side of the rotating cylindrical body. The foreign matter sorting machine of claim 1, wherein the second sorting unit further includes a partition plate, an end plate, and a guide plate disposed on the other end side of the rotating cylinder, the partition plate being on the shaft The rotating cylinder is partitioned in the direction and includes a first notch that forms a movement opening that can move a foreign matter larger than the granules of the granular material in a part of the inner circumferential surface of the rotating cylinder, and the end plate is provided with the rotation. a second gap that can discharge the discharge opening of the large foreign object is formed in a positional relationship in which the movement direction of the cylinder is shifted from the movement opening, and the guide plate flows into the partition plate and the end plate from the movement opening. The larger foreign matter in the area between the guides is guided to the discharge opening. The foreign matter sorting machine of claim 1 or 2, wherein the rotating cylinder of the second sorting unit is a polygonal cylinder. The foreign matter sorting machine of claim 1 or 2, wherein the hole of the rotating cylinder formed in the second sorting portion is positive with respect to the axis of the rotating cylinder The long hole is disposed obliquely in the direction of intersection so as to impart a force to the other end side by the rotation of the rotating cylinder. The foreign matter sorting machine according to claim 1 or 2, wherein the fixed cylinder of the first sorting unit is connected by a plurality of cylinders, and the sizes of the holes formed in the plurality of cylinders are different.