KR102021153B1 - Foreign substance separator - Google Patents

Abstract

(Problem) An object of the present invention is to provide a foreign matter sorter that can sort small foreign matters and large foreign matters mixed in granular materials such as polished rice with one device.
(Solution means) The present invention has a fixed cylinder in which a plurality of holes smaller than the grains of the granular material is formed, a first rotating shaft disposed in the fixed cylinder and fixed with a plurality of stirring members, and discharging small foreign matters from the holes, It has a 1st sorting part which carries out the granular material from which the said small foreign material was removed from the other end side of the said fixed cylinder, The rotating cylinder by which the hole slightly larger than the grain of a granular material is formed, The 2nd rotating shaft to which the rotating cylinder is fixed, While discharging the grains of the granular material from the hole, and having a second sorting portion for discharging the large foreign matter from the other end side of the rotating cylinder, the first sorting portion and the second sorting portion are disposed in succession, The first rotary shaft and the second rotary shaft is connected via a transmission mechanism for reducing the rotational speed of the first rotary shaft The features.

Description

Foreign substance sorter {FOREIGN SUBSTANCE SEPARATOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foreign matter sorter for sorting foreign matters mixed in granules such as grains, and more particularly, to a foreign matter sorter for screening and removing foreign matters such as crushed rice or rice bran mixed in polished rice after milling.

DESCRIPTION OF RELATED ART Conventionally, it is known to use the screen of a cylindrical shape or a polygonal cylinder shape as an apparatus which sorts foreign substances mixed in grains, such as a polished rice (refer patent document 1, 2).

In patent document 1, the apparatus which sorts out small foreign substances, such as chain rice mixed in a grain, is described. The said apparatus selects small foreign substances, such as a fine grain mixed in a grain, by supplying a grain in the cylindrical screen rotated or fixed, and discharging a small foreign substance from the mesh of the said screen.

Patent Literature 2 describes an apparatus for sorting large foreign matters such as rice bran mixed in grains. The apparatus selects large foreign matters such as rice bran mixed in the grains by supplying grains into the rotating cylindrical screen and discharging grains from the mesh of the screen.

By the way, in order to sort out small foreign substances and large foreign substances mixed in the grains, it is necessary to install the two apparatuses and to inject the grains sequentially into the two apparatuses, so that a large space for installing the respective apparatuses is provided. You need to secure it.

Moreover, in order to perform the said sorting operation efficiently, it is necessary to separately form the apparatus which conveys white rice from a 1st apparatus to a 2nd apparatus.

(Patent Document 1) Japanese Unexamined Patent Publication No. 2009-178679

(Patent Document 2) Japanese Patent Application Laid-Open No. 9-66264

Then, an object of this invention is to provide the foreign matter sorter which can sort out small foreign matter and large foreign matter mixed in granular materials, such as a grain, with one apparatus.

In order to achieve the above object, the present invention is a foreign matter sorter for sorting the foreign matter mixed in the granular material, the foreign matter sorter is formed in a fixed cylinder, a hole formed smaller than the grains of the granular material, formed in the fixed cylinder and a plurality of stirring A first sorting part having a first rotating shaft provided with a member, a rotating cylinder in which a hole larger than a grain of the granular material is formed, a second sorting part having a second rotating shaft including the rotating cylinder, and the first rotating shaft; A transmission mechanism for coupling the second rotating shaft and slowing down the rotational speed of the first rotating shaft, wherein the first sorting part stirs the granular material from one end side of the fixed cylinder to the other end side by rotation of the stirring member. By conveying while conveying, the foreign matter smaller than the graining of the said granular material is discharged | emitted from the hole formed in the said fixed cylinder, and the said fixed cylinder The granular material carried out from the other end side of the said fixed cylinder of the said 1st sorting part is carried out from the one end side of the said rotating cylinder, and the 2nd sorting part carries out the granular material from which the foreign matter smaller than the grain of the granular material was removed from the other end of It is carried in and discharges the said granular material from the hole formed in the rotating cylinder by rotation of the said rotating cylinder, and discharges the foreign matter larger than the grain of the granular material from the other end side of the said rotating cylinder.

The present invention further includes a partition plate, a end plate, and a guide plate formed on the other end side of the rotary cylinder, wherein the partition plate divides the rotary cylinder in the axial direction. A part of the inner circumferential surface of the rotating cylinder is provided with a first notch that forms a moving opening capable of moving a foreign matter larger than the grain size of the granular material, and the end plate has a positional relationship that is out of phase with the moving opening in the rotational direction of the rotating cylinder. And a second notch forming an opening for discharging the large foreign matter, and the guide plate guides the large foreign matter introduced into the area between the partition plate and the end plate from the moving opening to the opening for discharging. It is preferable.

In this invention, it is preferable that the said rotating cylinder in a said 2nd sorting part is a polygonal cylinder.

The present invention provides a hole formed in the rotary cylinder in the second sorting section in a direction orthogonal to the axis of the rotary cylinder so as to impart a force moved to the other end side to the granular material by the rotation of the rotary cylinder. It is preferable that it is a long hole arranged obliquely with respect.

In this invention, it is preferable that the said fixed cylinder in a said 1st sorting part is made by connecting several cylinder, and the magnitude | size of the hole formed in the said several cylinder is respectively different.

The foreign matter sorter of the present invention includes a first sorting part for sorting small foreign matters mixed in the granular material and a second sorting part for sorting large foreign matters mixed in the granular material, so that the small foreign matter and large foreign matter mixed in the granular material Can be selected by one device.

Moreover, since the said 1st sorting part and the said 2nd sorting part are arrange | positioned continuously, the foreign matter sorter of this invention does not need to separately provide the apparatus which conveys a granular material from a said 1st sorting part to a said 2nd sorting part. The structure is simple, and there is no need to secure a large installation space.

Moreover, since the foreign matter sorter of this invention connects a 1st rotation shaft and a 2nd rotation shaft via a transmission mechanism, it can drive both said rotation shafts by one motor, and there exists an effect of suppressing power consumption.

When the foreign matter sorter of the present invention has a partition plate in which the second sorting section is formed on the other end side of the rotating cylinder, the partition plate is obstructed and moves to the end plate side of the rotating cylinder together with the foreign matter having large grains. You can prevent it.

In addition, the foreign matter sorter of the present invention, even when the grains are placed in the region between the partition plate and the end plate, the particulate matter remains in the same region without moving to the other end side while the rotary cylinder is rotated by a predetermined angle. Therefore, the granular material can be reliably discharged from the hole formed in the rotating cylinder.

Therefore, according to the foreign matter sorter of the present invention, it is possible to prevent the particulate matter from being discharged from the discharge opening with the foreign matter larger than the grain matter.

The foreign matter sorter of the present invention is orthogonal to the axis of the rotating cylinder so that the hole formed in the rotating cylinder in the second sorting portion imparts a force to be moved to the other end side to the granular material by the rotation of the rotating cylinder. If it is a long hole arrange | positioned obliquely to a direction, even if the moving force of the granular material moved in the form pushed by the granular material from the back is not enough, the granular material can be reliably moved to the other end side of the said rotating cylinder.

In the foreign matter sorter of the present invention, when the fixed cylinder in the first sorting section is formed by connecting a plurality of cylinders, and the sizes of the holes formed in the plurality of cylinders are different from each other, foreign matters smaller than the grain size of the granular material are further added. It can be selected in detail.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of the foreign matter sorter in embodiment of this invention.
2 is a plan view of the foreign matter sorter of FIG.
3 is a cross-sectional perspective view taken along AA of FIG. 2.
4 is a cross-sectional view taken along AA of FIG. 2.
5 is a cross-sectional view taken along line BB of FIG. 2.
6 is a perspective view of a foreign substance sorting unit in a state where the cover of the end is removed in the foreign substance sorter of FIG. 1;
7 is an enlarged view of a foreign matter selection unit.
8 is a sectional view taken along line DD of FIG. 7A;

Embodiment of this invention is described based on drawing.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of the foreign matter sorter in embodiment of this invention is shown. FIG. 2: shows the top view of the foreign material sorter of FIG. FIG. 3 shows a cross-sectional perspective view of A-A in FIG. 2. 4 is a sectional view taken along the line A-A in FIG. 5 is a sectional view taken along the line B-B in FIG.

The foreign matter sorter in the present embodiment uses granular materials such as grains as raw materials, and foreign matters (hereinafter referred to as "small foreign matters") and large foreign matters (hereinafter referred to as "foreign matters") smaller than the grain size of the particulate matters. To screen.

Here, the white rice after the whitening is used as a raw material, and the case of the removal of the rice bran which is a foreign substance, the contaminated rice, a pest, a fall-off embryo etc. which are mixed in the white rice, and the rice bran which is a foreign substance are demonstrated. do.

The foreign matter sorter in the present embodiment includes a small foreign matter sorting section 1 and a foreign matter sorting section 2 disposed in succession to the small foreign matter sorting section 1.

The said foreign matter sorting part 1 is a fixed cylindrical body 11 which is gibberish, the 1st rotating shaft 12 arrange | positioned in the fixed cylindrical body 11, and the 1st rotating shaft 12. And a plurality of stirring vanes 13 which are fixed to the first rotating shaft 12 and are rotatably arranged.

In the fixed cylindrical body 11, the long hole 14 of the width | variety smaller than the graining of the polished rice over the whole periphery of the fixed cylindrical body 11 toward the direction orthogonal to the axis of the fixed cylindrical body 11 is carried out. Many are formed. Here, in the fixed cylindrical body 11, two cylinders are connected to each other, and the width (1.5 mm in width and 25 mm in length in the present embodiment) of the long hole formed in the first cylindrical body 11a is formed. It is smaller than the width (1.7 mm in width and 25 mm in length in this embodiment) of the long hole formed in the 2 cylindrical body 11b. 3, the long hole formed in the said fixed cylinder 11 is abbreviate | omitted.

Below the fixed cylindrical body 11, the discharge trough 15 for discharging the debris discharged | emitted from the elongate hole 14 formed in the said fixed cylindrical body 11 outside the sorting machine is arrange | positioned. The discharge trough 15 is divided into regions corresponding to the first cylindrical body 11a and the second cylindrical body 11b, the inside of which is disposed at the lower portion of each region. 17) is formed.

The foreign matter sorting section 2 is formed in the rotating polygonal cylinder 21 having a cross-sectional octagonal shape so as to be continuous with the fixed cylindrical body 11 and the rotating polygonal cylinder 21, and the rotating polygonal cylinder ( And a second rotation shaft 22 to which 21 is fixed.

The second rotary shaft 22 is connected to the same axis as the first rotary shaft 12 via a transmission mechanism 23 for reducing the rotational speed of the first rotary shaft 12. Here, a conventionally well-known thing can be used for the said transmission mechanism 23. As shown in FIG.

In the said rotary polygonal cylinder 21, the long hole 24 (5.0 mm in width, 45 mm in length in this example) of the width | variety slightly larger than the graining of the polished rice over the whole periphery of the rotary polygonal cylinder 21, Many are formed toward the direction orthogonal to the axis | shaft of the rotating polygonal cylinder 21. As shown in FIG. 3, the elongate hole 24 formed in the said rotating polygonal cylinder 21 is abbreviate | omitted in some surface.

White rice can be carried in from the one end side to the said rotating polygonal cylinder 21, and below the rotating polygonal cylinder 21, the grain discharged from the elongate hole 24 formed in the rotating polygonal cylinder 21 is provided. A standing outlet 26 is formed for discharging out of the sorter.

Moreover, in the side of the other end side edge part of the said rotating polygonal cylinder 21, the rice bran discharge trough 27 by which rice bran which is not discharged from the elongate hole 24 formed in the said rotating polygonal cylinder 21 is arrange | positioned is formed, In the lower portion of the rice bran discharge trough 27, a rice bran outlet 28 for discharging the rice bran out of the sorting machine is formed.

As shown in FIG. 3 to FIG. 5, the foreign matter sorter in the present embodiment has fine grains fed into the inlet 3 from the hopper 5 at a constant flow rate through the rotary valve 4. It is supplied to (1).

The polished rice brought into the fixed cylindrical body 11 from one end is moved from the one end side to the other end while being stirred by the stirring blade 13 which rotates via the first rotating shaft 12 which is rotationally driven by the motor 6. In the meantime, debris etc. are discharged | emitted from the elongate hole 14 formed in the said fixed cylindrical body 11 in the meantime. In addition, as shown by the arrow in FIG. 5, the said 1st rotating shaft 12 and the said stirring blade 13 rotate here clockwise as seen from the foreign material sorting part 2 side.

Here, since the fixed cylindrical body 11 is comprised by connecting the 1st cylindrical body 11a and the 2nd cylindrical body 11b, the foreign material sorter in this embodiment is attached to the 1st cylindrical body 11a. Small debris etc. are discharged | emitted from the long hole formed, and large debris etc. are discharged from the long hole formed in the 2nd cylindrical body 11b.

On the other hand, the polished rice in which the said chain rice is discharged | emitted and removed is carried out from the other end of the said fixed cylinder 11, and the rotating polygon cylinder 21 of the foreign matter sorting part 2 which is rolled out in succession to the fixed cylinder 11 is carried out. Are imported directly from the end.

The polished rice brought into the rotary polygonal cylinder 21 moves in the rotary polygonal cylinder 21 to the other end side in the form of being pushed by the polished rice from the rear, but then rotates in the same direction as the first rotary shaft 12. The grain is discharged from the elongate hole 24 formed in the said rotating polygonal cylinder 21 in the rotating polygonal cylinder 21 which is rotationally driven via the 2nd rotating shaft 22 mentioned above.

Here, the foreign matter sorter in the present embodiment sets the rotational speed of the rotary polygonal cylinder 21 in the foreign matter sorting section 2 to the stirring blade 13 in the small matter sorting section 1. Although it is necessary to slow down about 1/5-1/10 of the rotational speed of the said 2nd rotating shaft 22, the said 2nd rotating shaft 22 is made through the said transmission mechanism 23 for slowing down the rotating speed of the said 1st rotating shaft 12. Since it is connected with one rotating shaft 12, it can drive both by rotation by one motor 6, and there exists an effect of suppressing power consumption.

On the other hand, the rice bran after the said grain is discharged | emitted is discharged | emitted from the other end of the rotating polygonal cylinder 21. As shown in FIG.

In the said embodiment, the elongate hole 24 formed in the said rotating polygonal cylinder 21 is a rotating polygonal cylinder so that the force which moves to the polished rice to the other end side by rotation of the rotating polygonal cylinder 21 may be given. It can also be set as the structure arrange | positioned obliquely with respect to the direction orthogonal to the axis of (21). With such a configuration, even when the polished rice moving inside the rotating polygonal cylinder 21 to the other end in a form pushed by the polished rice from the rear is not sufficient, the polished rice is reliably conveyed to the other end side of the rotating cylinder. can do.

Moreover, the said 1st rotation shaft 12 and the said 2nd rotation shaft 22 should just be connected through the transmission mechanism 23, and do not necessarily need to be arrange | positioned on the same shaft.

In addition, the long holes 14 and 24 formed in the fixed cylindrical body 11 and the rotating polygonal cylinder 21 can change a shape suitably.

Moreover, the stirring blade 13 arrange | positioned in the said fixed cylindrical body 11 should just be a structure which conveys, stirring a polished rice, and if it has the same function, it can also be changed into a screw conveyor or the like.

In addition, the said rotating polygonal cylinder 21 is not limited to a cross-section octagon, and can also be changed into a rotating cylindrical body.

Next, the structure of the foreign material selection unit will be described in detail.

FIG. 6: shows the perspective view of the foreign material sorting part of the state which removed the cover of the edge part in the foreign material sorting machine of FIG. 7 is an enlarged view of the foreign material selection unit, FIG. 7A is an enlarged view of portion C of FIG. 4, and FIG. 7B is a sectional view taken along the line E-E of FIG. 7A. FIG. 8 is a sectional view taken along the line D-D in FIG. 7A. 6, the long hole formed in the rotating polygonal cylinder 21 is abbreviate | omitted at some surface. Moreover, as shown by the arrow in FIG. 6 and FIG. 8, the rotating polygonal cylinder 21 rotates clockwise as seen from the other end side end side in which the said rice bran discharge trough 27 is arrange | positioned.

The foreign object sorting portion 2 is disposed on the other end side of the rotary polygonal cylinder 21, and has a ring-shaped partition plate 30 that divides the inside of the rotary polygonal cylinder 21 in the axial direction, and the rotary polygonal cylinder. Furthermore, the ring-shaped end plate 31 arrange | positioned at the other end of 21 is further provided.

A notch is formed in the partition plate 30, and a part of the inner circumferential surface of the rotating polygonal cylinder 21 is formed with an opening 32 for moving rice bran, which is a large foreign matter mixed in polished rice.

In addition, a notch is formed in the end plate 31, and an opening 33 for discharging rice bran is formed in a positional relationship that is slightly out of phase with the moving opening 32 in the rotation direction of the rotary polygonal cylinder 21. have.

And between the said partition plate 30 and the said partition board 30 between the edge part of the rotation polygonal cylinder 21 side of the said rotation polygonal body 21 in the said discharge opening 33, and the said partition plate 30, Guide plate 34 which flows into the area | region between the said end plates 31, and is not discharged | emitted from the elongate hole 24 formed in the said rotating polygonal cylinder 21 in this area | region to the said discharge opening 33. ) Is arranged. As shown in FIG. 7B, the guide plate 34 includes the partition plate 30 and the end plate 31 so that the rice bran in contact with the guide plate 34 can be reliably discharged from the discharge opening 33. ) Is arranged to be inclined with respect to. Here, the guide plate 34 is formed by folding a part of the end plate 31 toward the partition plate 30. In addition, the tip of the guide plate 34 and the partition plate 30 do not necessarily have to be in contact with each other, and a gap having a size such that rice bran cannot pass through may be formed between them.

Here, the partition plate 30 and the end plate 31 may each be a disc-shaped member instead of a ring-shaped member having a constant width. In that case, a disc center part can also be formed from transparent materials, such as an acryl.

According to the structure of the said foreign substance sorting part 2, since the partition plate 30 is arrange | positioned at the other end side of the rotating polygonal cylinder 21, the said partition plate 30 becomes obstructive, The rice bran can be prevented from moving to the side of the plate anymore.

Further, even when grains of grains of rice are introduced into the area between the partition plate 30 and the end plate 31 from the movable opening 32, the grains of rice polished while the rotating polygonal cylinder 21 is about one rotation. Since it stays in the same area | region without moving to the end plate 31 side, the refinement of the polished rice can be reliably discharged | emitted from the elongate hole 24 formed in the said rotating polygonal cylinder 21. As shown in FIG.

Therefore, according to the said foreign matter sorting part 2, it is possible to prevent the grains of polished rice from being discharged from the discharge opening 33 together with the rice bran.

Moreover, the said foreign matter sorting part 2 can also be set as the structure which provides the said moving opening 32, the said discharge opening 33, and the said guide plate 34 in multiple numbers in the circumferential direction, respectively. For example, if the discharge opening and the guide plate are separately formed at the position half a turn from the said moving opening 32, and a new opening is formed in the half rotation direction side of the said rotating polygonal cylinder 21 in the guide plate, When the area between the partition plate 30 and the end plate 31 is further divided into two areas in the circumferential direction, and the rotary polygonal cylinder 21 rotates halfway from the two discharge openings. Rice bran is discharged every time.

The foreign matter sorting section 2 is a foreign matter sorting machine for the purpose of reliably sorting out large foreign matter mixed in the granular material, and may be an apparatus independent of the small foreign matter sorting section 1.

In that case, what is necessary is just to form the injection opening of a granular material in the one end side of the rotating polygonal cylinder 21, and to drive the 2nd rotating shaft 22 by the motor 6 without interposing the said 1st rotating shaft.

In the above embodiment, the white rice after the whitening is used as a raw material, and the case of selecting the rice bran, which is a large foreign matter, and the chain rice, which are smaller than the grains of the white rice, are described as an example, but the foreign matter selector of the present invention is not limited to white rice. Grains such as grains such as rice, wheat, legumes, nuts, pellets such as pellets and beads, tablets and capsules such as pharmaceuticals, etc. as raw materials, and small and large foreign substances mixed in the granules are selected. You can do it.

This invention is not limited to the said embodiment, Needless to say that the structure can be changed suitably unless it deviates from the range of invention.

Since the foreign matter sorter of the present invention can sort small foreign matters and large foreign matters mixed in granular materials such as polished rice with one device, the use value is very high.

1: Small particle sorting unit
2: Foreign object sorting unit
3: inlet
4: rotary valve
5: hopper
6: motor
11: fixed cylinder
12: first rotating shaft
13: stirring blade
14: long hole
16: Sintered rice outlet
17: Great chain exit
21: rotating polygon cylinder
22: second rotating shaft
23: transmission mechanism
24: long hole
26: sizing outlet
28: rice bran outlet
30: partition plate
31: single plate
32: opening for movement
33: discharge opening
34: information board

Claims (5)

A foreign matter sorter for sorting foreign matter mixed in a granular material, wherein the foreign matter sorter comprises: a fixed cylinder in which a hole smaller than the grain size of the particulate matter is formed, and a first rotating shaft disposed in the fixed cylinder and having a plurality of stirring members. 1st sorting part, the 2nd sorting part which has a rotating cylinder by which the hole larger than the grain of a grain is formed, and the 2nd rotating shaft provided with the rotating cylinder, and said 1st rotating shaft and said 2nd rotating shaft, It is provided in the said fixed cylinder by providing the transmission mechanism which slows down the rotational speed of a 1st rotation shaft, and conveying a granular object from one end side of the said fixed cylinder to the other end side by rotation of the said stirring member. While discharging foreign matter smaller than the size of the particulate matter from the hole, the particulate matter is formed from the other end side of the fixed cylinder. The granular material from which the smaller foreign matter was removed is carried out, and the said 2nd sorting part carries in the granular material carried out from the other end side of the said fixed cylinder of the said 1st sorting part from the one end side of the said rotating cylinder, and the rotation of the said rotating cylinder Discharging the granular material from the hole formed in the rotary cylinder by means, while discharging foreign matter larger than the grain size of the granular material from the other end side of the rotary cylinder.
The hole formed in the said rotary cylinder in a said 2nd sorting part is obliquely with respect to the direction orthogonal to the axis | shaft of the said rotary cylinder to give the said granular object the force moved to the other end side by the rotation of the rotary cylinder. The foreign matter sorter, characterized in that the long hole is arranged. The method of claim 1,
The second sorting section further includes a partition plate, a end plate, and a guide plate formed on the other end side of the rotary cylinder, wherein the partition plate divides the rotary cylinder in the axial direction and rotates the rotary cylinder. And a first notch on a part of the inner circumferential surface thereof to form a moving opening capable of moving a foreign matter larger than the grain size of the granular material, wherein the end plate has the large foreign matter in a positional relationship that is out of phase with the moving opening in a rotational direction of the rotary cylinder. And a second notch forming a discharge opening capable of discharging the liquid, wherein the guide plate guides the large foreign matter introduced into the area between the partition plate and the end plate from the moving opening to the discharge opening. Foreign body sorter. The method according to claim 1 or 2,
The said rotary cylinder in a said 2nd sorting part is a foreign material sorter which is a polygonal cylinder. delete The method according to claim 1 or 2,
The said fixed cylinder in a said 1st sorting part is a foreign material sorter by which several cylinder is connected, and the magnitude | size of the hole formed in the said several cylinder differs, respectively.

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