JP3665981B2 - Refined rice sorting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a milled rice sorting apparatus that removes both fine grains and defective grains from milled rice polished by a rice mill and obtains high-quality finished milled rice.
[0002]
[Prior art]
In general, milled rice is to remove the cocoon layer on the surface of the brown rice grains by the frictional action between the brown rice grains or by the grinding action by a grinding roll. Since it is accompanied by a rise, it is inevitable that some rice grains are crushed and deformed. For this reason, although it depends on the varieties and properties of the rice, as well as the milling conditions, etc., the milled rice contains defective grains and fine grains in a certain ratio.
[0003]
[Problems to be solved by the invention]
Various factors affect the quality of polished rice, but the ratio of missing grains and fine grains mixed during sizing is the largest factor affecting the quality of polished rice, so to obtain high-quality polished rice After milling, it is necessary to select and remove defective grains and fine grains to a very low ratio.
[0004]
Conventionally, rice grains are used to selectively remove defective grains and fine grains from polished rice. That is, the rice grader puts the milled rice into a porous sorting cylinder of the required mesh, and rotates the sorting cylinder or moves the milled rice by the spiral provided in the sorting cylinder during sizing. The missing grains and fine grains that are mixed are excluded from the sorting cylinder. However, in many cases, the grain size of the rice grader cannot be sufficiently removed even if fine grains can be selectively removed.
[0005]
Accordingly, an object of the present invention is to provide a milled rice sorting apparatus capable of efficiently removing fine grains as well as defective grains from polished rice polished by a rice mill, and obtaining high-quality finished polished rice. And
[0006]
[Means for Solving the Problems]
The milled rice sorting apparatus according to the present invention is a milled rice sorting apparatus that removes both fine grains and deficient grains from milled rice polished by a milling machine. Porous sorting for supplying fine milled rice to separate fine grains A granular sorting cylinder that separates the defective grains from the sized particles and sends the sized particles is provided at the lower stage, and the flow path of the milled rice to be sorted is between the upper porous sorting cylinder and the lower granular sorting cylinder. The porous sorting cylinder and the granular sorting cylinder are each driven to rotate at a required rotational speed.
[0007]
In the milled rice sorting apparatus according to the present invention, it is preferable that the rotary drive motor is built in the axial center portion of the perforated sorting cylinder.
[0008]
In the milled rice sorting apparatus according to the present invention, the porous sorting cylinder has a configuration in which a large number of elongated holes for extracting fine grains are formed, and the granular sorting cylinder receives the missing grains and moves in the rotational direction to separate the sized and separated grains. It is preferable to adopt a configuration to do so.
[0009]
In the milled rice sorting apparatus according to the present invention, it is preferable that the perforated sorting cylinder has a net-like structure formed by knitting a wire.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
In FIG. 1, reference numeral 1 denotes a milled rice sorting apparatus. This milled rice sorting device 1 is capable of sorting and removing both fine grains and defective grains from milled rice polished by a mill. In the milled rice sorting apparatus 1, 2 is a porous sorting cylinder, and 3 is a granular sorting cylinder. The porous sorting cylinder 2 has a porous shape in which a large number of mesh elongated holes 4 for sorting out fine grains mixed in the polished milled rice are formed (see FIG. 2), and has a polygonal cylindrical shape. In addition, the granular sorting cylinder 3 has a large number of depressions 5 with a depth that allows the defect grains to enter the inner surface (see FIG. 3). The porous sorting cylinder 2 and the granular sorting cylinder 3 are connected in series and rotated in series. It constitutes a sorter. The multi-hole sorting cylinder 2 and the granular sorting cylinder 3 constituting the series of rotary sorting bodies are pivotally supported so as to rotate on the same axis, and are rotationally driven by the rotary drive motor 6. The porous sorting cylinder 2 and the granular sorting cylinder 3 that form a series are inclined from the porous sorting cylinder 2 side to the granular sorting cylinder 3 side. It is connected and is configured to supply the selected polished rice from the hopper 7. The outer cylinder 8 of the sorting apparatus 1 is provided with a fine particle discharge port 9 corresponding to the porous sorting cylinder 2.
[0011]
A deficient grain receiving rod 10 having an open upper surface is installed in the axial center portion of the granular sorting cylinder 3, and a spiral transfer body 11 is provided in the deficient grain receiving rod 10 (see FIG. 5). The spiral transfer body 11 is configured to be rotationally driven by a rotational drive motor 12. Reference numeral 13 denotes a rotation support portion of the granular sorting cylinder 3. Reference numeral 14 denotes a defective grain discharge rod, which is connected to the discharge side of the defective particle receptacle 10. On the inclined lower end side of the outer cylinder 8, a sized feed rod 15 that flows out of the granular sorting cylinder 3 is provided.
[0012]
As shown in FIG. 4, the porous sorting cylinder 2 may be a net-like one formed by knitting a wire such as metal. The granular sorting cylinder 3 can also be made into a net-like shape formed by knitting a wire such as a metal by making the shape and size of the mesh suitable for sorting of defective grains.
[0013]
In the white rice sorting apparatus 1 shown in FIG. 1, when the sorted polished rice is introduced from the hopper 7, the sorted polished rice flows into the porous sorting cylinder 2. And by the rotation of the porous sorting cylinder 2, the sorted polished rice is stirred inside, and the mixed fine grains pass through the porous sorting cylinder 2 and are sorted out. The fine particles excluded from the porous sorting cylinder 2 are discharged from the fine particle discharge port 9 to the outside of the apparatus.
[0014]
On the other hand, the sorted polished rice from which fine grains have been eliminated in the porous sorting cylinder 2 moves into the granular sorting cylinder 3, and in the granular sorting cylinder 3, the sorted polished rice enters a large number of depressions 5 and is filled up. Present. The to-be-sorted polished rice that has entered the recess 5 rises with the rotation of the granular sorting cylinder 3, but the sized particles with a large grain length fall out of the depression 5 in the course of the ascent and remain in the granular sorting cylinder 3. Then, the defective grains continue to rise as they are, fall on the defective grain receptacle 10 into the cage, and are discharged out of the machine from the defective grain discharge basket 14 by the spiral transfer body 11 (see FIG. 5). . Note that the selection of the defective grains is repeated many times as the granular sorting cylinder 3 rotates. The sized particles remaining in the granular sorting cylinder 3 are sent out from the sized particle sending bowl 15.
[0015]
By the way, since the defective particles are sorted by the granular sorting cylinder 3 after the fine sorting is eliminated by the porous sorting cylinder 2, the fine grains do not enter into the numerous depressions 5 of the granular sorting cylinder 3 and become clogged or shallow. In addition, the removal and removal of defective grains from the sized particles is performed with high accuracy and reliability.
[0016]
If the perforated sorting cylinder 2 is a net-like one formed by knitting a wire such as metal as shown in FIG. 4, an uneven surface is formed in the perforated sorting cylinder 2, and the milled rice to be sorted is stirred while receiving an impact. The For this reason, the separation effect of fine particles from the sized particles is improved, and the fine particle separation / exclusion efficiency is further increased. In particular, an excellent effect can be obtained in separating fine particles such as viscous soot from sized particles.
[0017]
FIG. 6 is a cross-sectional view showing an embodiment of a milled rice sorting apparatus according to the present invention. In addition, the same code | symbol is attached | subjected to the part of the same structure as what was shown in FIG. 1, and the description is abbreviate | omitted. 6 does not connect the porous sorting cylinder 2 and the granular sorting cylinder 3 in series, but provides the porous sorting cylinder 2 in the upper stage and the granular sorting cylinder 3 in the lower stage. It is set as the structure connected with the granular sorting cylinder 3 by the flow-down path 16 of to-be-sorted polished rice. The perforated sorting cylinder 2 is driven to rotate at a required rotational speed by the rotary drive motor 6 and the granular sorting cylinder 3 is driven by the rotary drive motor 17 respectively.
[0018]
As shown in FIG. 6, the porous sorting cylinder 2 and the granular sorting cylinder 3 are configured to rotate separately, so that the fine grain sorting by the porous sorting cylinder 2 and the defective grain sorting by the granular sorting cylinder 3 are the most. Since each rotation speed can be set so as to be made efficiently, the selection efficiency can be improved.
[0019]
FIG. 7 is a cross-sectional view showing another embodiment of the milled rice sorting apparatus. In addition, the same code | symbol is attached | subjected to the part of the same structure as what was shown in FIG. 1, and the description is abbreviate | omitted. 7 shows that the granular sorting cylinder 3 is a net-like shape made of knitted wire such as metal, and the defective grain discharge rod 14 is formed so as to correspond to almost the entire surface of the granular sorting cylinder 3 of the exterior cylinder. In this embodiment, the rotary drive motor 18 is provided at the axial center of the porous sorting cylinder 2, and the output shaft 19 of the rotary drive motor 18 is connected to the porous sorting cylinder 2 and the granular sorting cylinder. 3 is connected to the connecting portion. The rotary drive motor 18 is covered with a cover tube 20.
[0020]
FIG. 8 is a sectional view showing another embodiment of the milled rice sorting apparatus according to the present invention. 1 and 6 are denoted by the same reference numerals, and description thereof is omitted. In the embodiment shown in FIG. 8, the rotary drive motor 18 is provided in the axial center portion in the perforated sorting cylinder 2, and the exterior body of the rotary drive motor 18 protrudes outward from the end of the perforated sorting cylinder 2. And fixed to the external aircraft.
[0021]
As shown in FIG. 7 or FIG. 8, by providing the rotary drive motor 18 in the perforated sorting cylinder 2 , the rotary drive motor 18 does not protrude outside the machine body, so that the apparatus can be reduced in size and rotated. The operation sound of the drive motor 18 can be reduced.
[0022]
【The invention's effect】
According to the present invention, fine grains as well as defective grains can be efficiently removed from polished rice polished by a rice mill, and an effect of obtaining high-quality finished polished rice can be obtained.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a screened rice sorting apparatus.
FIG. 2 is an enlarged view of a broken-line circle A portion in FIG.
FIG. 3 is an enlarged view of a broken-line circle B portion in FIG. 1;
4 is an enlarged view showing a net-like material formed by knitting a wire material such as metal corresponding to the broken-line circle A portion of FIG. 1;
FIG. 5 is a schematic cross-sectional view schematically showing a part of the configuration of FIG. 1;
FIG. 6 is a cross-sectional view showing an embodiment of a milled rice sorting apparatus according to the present invention.
FIG. 7 is a cross-sectional view showing another embodiment of a milled rice sorting apparatus.
FIG. 8 is a cross-sectional view showing another embodiment of the milled rice sorting apparatus according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sorting device of milled rice 2 Porous sorting cylinder 3 Granular sorting cylinder 4 Elongated hole 5 Depth of depth into which defective grains enter 6 Rotating drive motor 7 Hopper 8 Exterior cylinder 9 Fine grain outlet 10 Defective grain receiving 11 Spiral transfer body 12 Rotation drive motor 13 Rotation support section 14 Deficient grain discharge basket 15 Sizing and feeding basket 16 Flow path of sorted milled rice 17 Rotation drive motor 18 Rotation drive motor 19 Output shaft 20 of rotation drive motor 20 Covered cylinder

Claims (4)

  In a milled rice sorting device that removes both fine and deficient grains from milled rice polished by a rice mill, the perforated sorting cylinder that feeds the sorted milled rice and separates the fine grains in the upper stage, A granular sorting cylinder that separates and sends the sized particles is provided in the lower stage, and is configured to communicate between the upper porous sorting cylinder and the lower granular sorting cylinder through the flow path of the sorted polished rice, A polished rice sorting apparatus characterized in that each granular sorting cylinder is driven to rotate at a required rotational speed. Polished rice sorting apparatus according to claim 1, characterized in that the axial portion of the porous screened cylinder is built the rotary drive motor. The porous sorting cylinder has a configuration in which a large number of elongated holes for extracting fine grains are formed, and the granular sorting cylinder has a configuration in which the missing grains are received and moved in the rotation direction to be separated from the sized granules. A sorting apparatus for polished rice according to 1 or 2 . Porous sorting cylinder is polished rice sorting apparatus according to claim 1, 2 or 3, wherein the a configuration of a network comprising knitting the wire.

Images