JP5895713B2 - Foreign matter sorter - Google Patents

Description

  The present invention relates to a foreign matter sorter for sorting foreign matters mixed in granular materials such as grains, and more particularly to a foreign matter sorter suitable for sorting and removing foreign matters such as broken rice and rice balls mixed in polished rice after milling. .

  DESCRIPTION OF RELATED ART Conventionally, what utilizes the screen of a cylindrical shape or a polygonal cylinder shape is known as an apparatus which sorts out the foreign substance mixed in grains, such as polished rice (refer patent documents 1 and 2).

  Patent Document 1 describes an apparatus for selecting small foreign matters such as crushed rice mixed in grains. The said apparatus supplies a grain in the cylindrical screen rotated or fixed, and discharge | emits a small foreign material from the mesh of the said screen, and sorts out small foreign materials, such as crushed rice mixed in a grain.

  Patent Document 2 describes a device that sorts out large foreign objects such as jasper mixed in grains. The apparatus supplies grains into a rotating cylindrical screen, and sorts out large particles such as jasper mixed in the grains by discharging the sized grains from the mesh of the screen. It is.

By the way, in order to sort out small foreign substances and large foreign substances mixed in the grain, it is necessary to install the above-mentioned two devices and sequentially put the grains into the two devices. It is necessary to secure a large space for doing so.
Further, in order to perform the sorting operation efficiently, it is necessary to separately provide a device for transporting polished rice from the first device to the second device.

JP 2009-178679 A JP-A-9-66264

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

In order to achieve the above object, the present invention provides:
A foreign matter sorter for sorting foreign matter mixed in granular materials,
A fixed cylinder in which many holes smaller than the sizing of the granular material are formed, and a first rotating shaft that is disposed in the fixed cylinder and to which a plurality of stirring members are fixed. While the granular material is conveyed while stirring from one end side to the other end side of the fixed cylinder, foreign matters smaller than the granulated particles are discharged from the holes formed in the fixed cylinder, while the fixed cylinder A first sorting unit for carrying out the particulate matter from which the small foreign matter has been removed from the other end of the body;
A rotating cylinder having a number of holes slightly larger than the size of the granular material, a second rotating shaft to which the rotating cylinder is fixed, and the granular material can be carried in from one end side of the rotating cylinder. The particle size of the granular material is discharged from the hole formed in the rotating cylinder by the rotation of the rotating cylinder, while a foreign matter larger than the particle size of the granular material is discharged from the other end of the rotating cylinder. A second sorting unit for discharging,
The first sorting unit and the second sorting unit are arranged in succession so that the particulate matter carried out from the fixed cylinder can be carried in from one end side of the rotating cylinder, and the first rotating shaft The second rotating shaft is connected via a speed change mechanism that decelerates the rotational speed of the first rotating shaft.

In the present invention, the second sorting unit is
Disposed on the other end side of the rotary cylinder, the rotary cylinder is partitioned in the axial direction, and a foreign substance moving opening larger than the particle size adjustment is formed on a part of the inner peripheral surface of the rotary cylinder. A partition plate provided with a notch,
An end plate provided at the other end of the rotating cylinder and provided with a notch for forming the large foreign matter discharge opening in a positional relationship slightly out of phase with the moving opening in the rotation direction of the rotating cylinder. ,
The discharge opening is disposed between the end portion on the counter-rotating direction side of the rotating cylinder and the partition plate, and flows into the region between the partition plate and the end plate from the movement opening. A guide plate for guiding the large foreign matter not discharged from the hole formed in the rotating cylinder in the region to the discharge opening;
It is preferable to further have.

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

  The present invention provides the shaft of the rotating cylinder so that a hole formed in the rotating cylinder in the second sorting unit gives a force to the granular material to move to the other end side by the rotation of the rotating cylinder. It is preferable that it is a long hole arrange | positioned diagonally with respect to the orthogonal direction.

  In the present invention, it is preferable that the fixed cylinder in the first sorting unit is formed by connecting a plurality of cylinders, and the sizes of the holes formed in the plurality of cylinders are different.

The foreign matter sorter of the present invention includes a first sorting unit that sorts small foreign matters mixed in granular materials and a second sorting unit that sorts large foreign matters mixed in granular materials. Large foreign objects can be sorted with a single device.
In the foreign matter sorting machine according to the present invention, since the first sorting unit and the second sorting unit are arranged in succession, a separate apparatus for conveying particulate matter from the first sorting unit to the second sorting unit is separately provided. There is no need to provide it, the structure is simple, and it is not necessary to secure a large installation space.
Furthermore, since the foreign matter sorter of the present invention connects the first rotating shaft and the second rotating shaft via the speed change mechanism, both the rotating shafts can be rotationally driven by a single motor, resulting in an effect of suppressing power consumption. is there.

In the foreign matter sorter according to the present invention, if the second sorting unit has a partition plate disposed on the other end side of the rotating cylinder, the partition plate becomes an obstacle, and particle size regulation is accompanied by a large foreign matter. It can prevent moving to the end plate side of the said rotating cylinder.
Further, the foreign matter sorter of the present invention is such that, even when the sizing of the granular material flows into the region between the partition plate and the end plate, the granular material has the other end while the rotating cylinder rotates by a predetermined angle. Since it stays in the same region without moving to the side, the sizing of 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 sizing of the granular material from being discharged from the discharge opening together with the foreign matter larger than the sizing of the granular material.

  In the foreign matter sorting machine according to the present invention, the hole formed in the rotating cylinder in the second sorting unit applies a force to the granular material to move to the other end side by the rotation of the rotating cylinder. If it is a long hole arranged obliquely with respect to the direction perpendicular to the axis, the granular material is rotated even when the moving force of the granular material moving in a form pushed by the granular material from behind is not sufficient. It can be reliably moved to the other end side of the cylinder.

  In the foreign matter sorting machine of the present invention, the fixed cylinder in the first sorting unit 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 substances smaller than the sizing of the object can be further finely selected.

The perspective view of the foreign material sorter in embodiment of this invention. FIG. 2 is a plan view of the foreign matter sorter in FIG. 1. The AA cross-section perspective view of FIG. AA sectional drawing of FIG. BB sectional drawing of FIG. FIG. 2 is a perspective view of a large foreign matter sorting unit in a state where an end cover is removed in the foreign matter sorter of FIG. 1. The enlarged view of a large foreign material selection part. DD sectional drawing of Fig.7 (a).

  Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a foreign matter sorter according to an embodiment of the present invention. FIG. 2 shows a plan view of the foreign matter sorter of FIG. FIG. 3 is a perspective cross-sectional view taken along the line AA of FIG. FIG. 4 is a cross-sectional view taken along the line AA in FIG. FIG. 5 is a cross-sectional view taken along the line BB in FIG.
The foreign matter sorter in the present embodiment uses a granular material such as a grain as a raw material, and a foreign material smaller than the granulated particles (hereinafter referred to as “small foreign material”) and a large foreign material (hereinafter referred to as “large foreign material”). And so on).
Here, the milled rice after milling is used as a raw material, and crushed rice, pests, fallen germ, etc. (hereinafter referred to as “crushed rice, etc.”), which are small foreign matter mixed in the milled rice, and rice balls, which are large foreign matter, are selectively removed. This will be described as an example.

The foreign matter sorting machine in the present embodiment includes a small foreign matter sorting unit 1 and a large foreign matter sorting unit 2 that is arranged continuously to the small foreign matter sorting unit 1.
The small foreign matter sorting unit 1 includes a fixed cylindrical body 11 provided horizontally, a first rotating shaft 12 disposed in the fixed cylindrical body 11, and the first rotating shaft fixed to the first rotating shaft 12. 12 and a plurality of stirring blades 13 disposed so as to be integrally rotatable.

  In the fixed cylindrical body 11, a plurality of long holes 14 having a width smaller than the sized rice milled rice are formed over the entire circumference of the fixed cylindrical body 11 in a direction perpendicular to the axis of the fixed cylindrical body 11. Yes. Here, the fixed cylindrical body 11 is formed by connecting two cylindrical bodies, and the width of the long hole formed in the first cylindrical body 11a (in this embodiment, the width is 1.5 mm and the length is 25 mm) is The width of the long hole formed in the two cylindrical body 11b (in this embodiment, the width is 1.7 mm, the length is 25 mm) is smaller. In FIG. 3, the elongated holes formed in the fixed cylindrical body 11 are not shown.

  Disposed below the fixed cylinder 11 is a discharge rod 15 for discharging the crushed rice discharged from the long hole 14 formed in the fixed cylinder 11 to the outside of the machine. The discharge basket 15 is partitioned into regions 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 lower part of each region. Yes.

  The large foreign matter sorting part 2 is disposed in the rotating polygonal cylinder 21 and has an octagonal cross section of the rotating polygonal cylinder 21 that is continuously provided on the fixed cylindrical body 11 and the rotating polygonal cylinder. And a second rotating shaft 22 to which 21 is fixed.

The second rotary shaft 22 is coaxially connected to the first rotary shaft 12 via a speed change mechanism 23 for reducing the rotational speed of the first rotary shaft 12. Here, a conventionally known one can be used for the speed change mechanism 23.
The rotating polygonal cylinder 21 has a long hole 24 (width 5.0 mm, length 45 mm in this embodiment) having a slightly larger width than the sized rice milled rice over the entire circumference of the rotating polygonal cylinder 21. Many are formed in the direction orthogonal to the axis of the rotating polygonal cylinder 21. In FIG. 3, the long holes 24 formed in the rotating polygonal cylinder 21 are not shown on some surfaces.

Refined rice can be carried into the rotating polygonal cylinder 21 from one end side, and is arranged below the rotating polygonal cylinder 21 and discharged from a long hole 24 formed in the rotating polygonal cylinder 21. A sized outlet 26 is provided for discharging the grains out of the machine.
Further, on the side of the end portion on the other end side of the rotating polygonal cylinder 21, a jasper discharging rod 27 for discharging the jasper that is not discharged from the long hole 24 formed in the rotating polygonal cylinder 21 is disposed. In addition, a jasper discharge port 28 for discharging the jasper to the outside of the machine is formed in the lower part of the jasper discharge basket 27.

In the foreign matter sorter according to the present embodiment, as shown in FIGS. 3 to 5, the polished rice put into the inlet 3 is supplied from the hopper 5 to the small foreign matter sorter 1 through the rotary valve 4 at a constant flow rate. Is done.
The polished rice carried from one end to the fixed cylindrical body 11 is conveyed from the one end side to the other end side while being stirred by a stirring blade 13 that rotates via a first rotating shaft 12 that is rotationally driven by a motor 6. Meanwhile, broken rice or the like is discharged from the long hole 14 formed in the fixed cylindrical body 11. Here, the first rotating shaft 12 and the stirring blade 13 rotate clockwise as viewed from the large foreign matter sorting unit 2 side, as indicated by arrows in FIG.
Here, in the foreign matter sorter in 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 the long hole formed in the first cylindrical body 11a. The small broken rice or the like is discharged from the second, and the large broken rice or the like is discharged from the long hole formed in the second cylindrical body 11b.

  On the other hand, the polished rice from which the crushed rice has been discharged and removed is carried out from the other end of the fixed cylindrical body 11, and the rotating polygonal cylinder of the large foreign matter sorting unit 2 that is continuously provided on the fixed cylindrical body 11. It is carried directly into 21 from one end.

The polished rice carried into the rotating polygonal cylinder 21 moves to the other end side in the rotating polygonal cylinder 21 while being pushed by the polished rice from the rear. At that time, the first rotating shaft 12 and In the rotating polygonal cylinder 21 that is rotationally driven via the second rotating shaft 22 that rotates in the same direction, the sized particles are discharged from the long holes 24 formed in the rotating polygonal cylinder 21.
Here, the foreign matter sorter in the present embodiment sets the rotational speed of the rotating polygonal cylinder 21 in the large foreign matter sorting unit 2 to 1/5 to 1/1 of the rotational speed of the stirring blade 13 in the small foreign matter sorting unit 1. Although it is necessary to decelerate to about 10, the second rotating shaft 22 is connected to the first rotating shaft 12 via a speed change mechanism 23 for decelerating the rotation speed of the first rotating shaft 12, Both can be rotationally driven by one motor 6 and there is an effect of suppressing power consumption.

  On the other hand, the jasper after the sized particles are discharged is discharged from the other end of the rotating polygonal cylinder 21.

  In the above embodiment, the long polygonal holes 24 formed in the rotating polygonal cylinder 21 provide the rotating polygonal cylinder so as to apply a force to move the polished rice to the other end side by the rotation of the rotating polygonal cylinder 21. It can also be set as the structure arrange | positioned diagonally with respect to the direction orthogonal to the 21 axis | shaft. With such a configuration, even when the moving force of the polished rice that moves to the other end side in the rotary polygonal cylinder 21 by being pushed by the polished rice from the rear is not sufficient, the polished rice is recorded on the rotating cylinder. It can be reliably conveyed to the other end of the body.

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

The elongated holes 14 and 24 formed in the fixed cylindrical body 11 and the rotating polygonal cylindrical body 21 can be appropriately changed in shape.
Moreover, the stirring blade 13 arrange | positioned in the said fixed cylindrical body 11 should just be a structure which conveys white rice while stirring, and if it has the same function, it can also be changed into a screw conveyor.
Furthermore, the rotating polygonal cylinder 21 is not limited to an octagonal cross section, and can be changed to a rotating cylinder.

Next, the structure of the large foreign matter selection unit will be described in detail.
FIG. 6 is a perspective view of the large foreign matter sorting unit with the end cover removed in the foreign matter sorter of FIG. FIG. 7 is an enlarged view of the large foreign matter sorting portion, FIG. 7A is an enlarged view of a portion C of FIG. 4, and FIG. 7B is a cross-sectional view taken along line EE of FIG. FIG. 8 is a sectional view taken along the line DD in FIG. Here, in FIG. 6, the long holes formed in the rotating polygonal cylinder 21 are not shown on some surfaces. Further, as shown by arrows in FIGS. 6 and 8, the rotating polygonal cylinder 21 rotates in the clockwise direction when viewed from the other end side where the jasper discharging rod 27 is disposed.
The large foreign matter sorting unit 2 is disposed on the other end side of the rotating polygonal cylinder 21, and includes a ring-shaped partition plate 30 that partitions the inside of the rotating polygonal cylinder 21 in the axial direction; And a ring-shaped end plate 31 disposed at the end.

The partition plate 30 is provided with a notch, and an opening 32 for movement of jasper which is a large foreign substance mixed in the polished rice is formed in a part of the inner peripheral surface of the rotating polygonal cylinder 21.
Further, the end plate 31 is provided with a notch, and a jasper discharge opening 33 is formed in a positional relationship slightly shifted in phase with the moving opening 32 in the rotational direction of the rotating polygonal cylinder 21. Yes.
Then, between the partition plate 30 and the end of the discharge opening 33 on the side opposite to the rotational direction of the rotating polygonal cylinder 21, the partition plate 30 and the end plate 31 are connected from the opening 32 for movement. A guide plate 34 is disposed to guide the jasper that flows into the area between them and is not discharged from the long hole 24 formed in the rotating polygonal cylinder 21 in the area to the discharge opening 33. As shown in FIG. 7B, the guide plate 34 is inclined with respect to the partition plate 30 and the end plate 31 so that the jade balls contacting the guide plate 34 can be reliably discharged from the discharge opening 33. It is set as the structure arrange | positioned. Here, the guide plate 34 is formed by bending a part of the end plate 31 toward the partition plate 30. In addition, the front-end | tip of the said guide plate 34 and the said partition plate 30 do not necessarily need to contact, and the clearance gap of the magnitude | size which cannot pass a jasper through may be provided between both.
Here, the partition plate 30 and the end plate 31 may be disk-shaped members instead of ring-shaped members each having a certain width. In that case, the central part of the disk can be formed of a transparent material such as acrylic.

According to the structure of the large foreign matter sorting unit 2, the partition plate 30 is disposed on the other end side of the rotating polygonal cylinder 21. Further movement to the end plate side can be prevented.
Further, even when the sized rice milled particles flow into the region between the partition plate 30 and the end plate 31 from the opening 32 for movement, the milled rice is not removed during the rotation of the rotating polygonal cylinder 21 for about one rotation. Since it remains in the same area without moving to the end plate 31 side, the sized rice milled rice can be reliably discharged from the long hole 24 formed in the rotating polygonal cylinder 21.
Therefore, according to the large foreign matter sorting unit 2, it is possible to prevent the sized rice refined particles from being discharged from the discharge opening 33 together with the jasper.

  In addition, the said large foreign material selection part 2 can also be set as the structure which provides the said opening 32 for a movement, the said opening 33 for discharge | emission, and the said guide plate 34 in the circumferential direction, respectively. For example, if a discharge opening and a guide plate are separately provided at a position half-circumferentially from the movement opening 32, and a movement opening is newly provided on the counter-rotation direction side of the rotating polygonal cylinder 21 in the guide plate, The region between the partition plate 30 and the end plate 31 will be further divided into two regions in the circumferential direction, and every time the rotating polygonal cylinder 21 rotates halfway from the two discharge openings. The ball will be discharged.

In addition, the said large foreign material classification | selection part 2 can also be set as the apparatus independent of the said small foreign material selection part 1 as a foreign material selection machine aiming at the selection of the big foreign material mixed in a granular material reliably.
In that case, a structure may be used in which a granular material inlet is provided on one end of the rotating polygonal cylinder 21 and the second rotating shaft 22 is driven by the motor 6 without passing through the first rotating shaft.

  In the above embodiment, the case has been described as an example in which the polished rice after milling is used as a raw material, and crushed rice or the like that is a foreign matter smaller than the sized rice milled rice and the hard rice that is a large foreign matter are selected. The foreign matter sorting machine is not limited to polished rice, but uses grains, such as rice, wheat, beans, and nuts, small pieces such as pellets and beads, tablets and capsules of pharmaceuticals, etc. as raw materials. Small foreign substances and large foreign substances mixed in granular materials can be selected.

  The present invention is not limited to the above-described embodiment, and it goes without saying that the configuration can be appropriately changed without departing from the scope of the invention.

  The foreign matter sorter of the present invention is extremely useful because it can sort small foreign matters and large foreign matters mixed in granular materials such as polished rice with a single device.

DESCRIPTION OF SYMBOLS 1 Small foreign material classification part 2 Large foreign material classification part 3 Input port 4 Rotary valve 5 Hopper 6 Motor 11 Fixed cylindrical body 12 1st rotating shaft 13 Stirring blade 14 Long hole 16 Small broken rice discharge port 17 Large broken rice exit 21 Rotating polygonal cylinder 22 Second rotating shaft 23 Transmission mechanism 24 Elongated hole 26 Sizing outlet 28 Jade ball outlet 30 Partition plate 31 End plate 32 Opening for movement 33 Opening for discharge 34 Guide plate

Claims (5)

A foreign matter sorter for sorting foreign matter mixed in granular materials,
A fixed cylinder in which many holes smaller than the sizing of the granular material are formed, and a first rotating shaft that is disposed in the fixed cylinder and to which a plurality of stirring members are fixed. While the granular material is conveyed while stirring from one end side to the other end side of the fixed cylinder, foreign matters smaller than the granulated particles are discharged from the holes formed in the fixed cylinder, while the fixed cylinder A first sorting unit for carrying out the particulate matter from which the small foreign matter has been removed from the other end of the body;
A rotating cylinder in which many holes that are slightly larger than the size of the granular material are formed, a second rotating shaft to which the rotating cylinder is fixed, and the granular material is carried in from one end side of the rotating cylinder, While discharging the granulated particles from the hole formed in the rotating cylinder by the rotation of the rotating cylinder, foreign particles larger than the granulated particles are discharged from the other end of the rotating cylinder. A second sorting unit,
The first sorting unit and the second sorting unit are arranged in succession so that the particulate matter carried out from the fixed cylinder can be carried in from one end side of the rotating cylinder, and the first rotating shaft The foreign matter sorting machine, wherein the second rotating shaft is connected through a speed change mechanism that decelerates the rotational speed of the first rotating shaft. The second sorting unit
Disposed on the other end side of the rotary cylinder, the rotary cylinder is partitioned in the axial direction, and a foreign substance moving opening larger than the particle size adjustment is formed on a part of the inner peripheral surface of the rotary cylinder. A partition plate provided with a notch,
An end plate provided at the other end of the rotating cylinder and provided with a notch for forming the large foreign matter discharge opening in a positional relationship slightly out of phase with the moving opening in the rotation direction of the rotating cylinder. ,
The discharge opening is disposed between the end portion on the counter-rotating direction side of the rotating cylinder and the partition plate, and flows into the region between the partition plate and the end plate from the movement opening. A guide plate for guiding the large foreign matter not discharged from the hole formed in the rotating cylinder in the region to the discharge opening;
The foreign matter sorter according to claim 1, further comprising:   The foreign matter sorter according to claim 1, wherein the rotating cylinder in the second sorting unit is a polygonal cylinder.   The hole formed in the rotating cylinder in the second sorting unit is in a direction orthogonal to the axis of the rotating cylinder so as to give the granular material a force to move to the other end side by the rotation of the rotating cylinder. The foreign matter sorter according to any one of claims 1 to 3, wherein the foreign matter sorter is a long hole arranged obliquely.   5. The fixed cylinder in the first selection unit is formed by connecting a plurality of cylinders, and the sizes of holes formed in the plurality of cylinders are different from each other. Foreign matter sorter.

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