JPH0655143A - Controlling apparatus for sorting grain thickness of unpolished rice - Google Patents

Abstract

PURPOSE:To achieve the enhancement and differnetiation of the quality of unpolished rice by measuring the grade of grains of unpolished rice based on the particle size distribution of whole grain. CONSTITUTION:A first sorting part A equipped with a grain thickness sorter 2 having a predetermined mesh size and performs receiving unpolished rice and sorting its grain thickness, a second sorting part B equipped with a plurality of grain thickness sorter 14a-14c of which the mesh sizes are larger than the mesh size of the grain thickness sorter 2 of the first sorting part A and set so as to be different mutually and a control unit 12 operating grain thickness distribution on the basis of the measured data from an appearance inspection device 7 measuring grain thickness using the whole grain from the first sorting part A as sample grain and selecting and setting either one of the grain thickness sorters 14a-14c in the second sorting part B on the basis of the operation result are provided. By this constitution, the whole grain from which waste rice is removed in the first sorting part A is transferred to the second sorting part B but, at this time, the selection of the mesh sizes of the grain thickness sorters 14a-14c in the second sorting part B is judged according to the grain thickness distribution based on the data from the appearance inspection device 7 and a grain thickness part small in grain thickness and low in a distribution ratio is further removed to obtain unpolished rice of good quality.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain thickness sorting control device for brown rice, which can be used for grain preparation facilities.

[0002]

2. Description of the Related Art There is a known form in which grain quality and taste are judged at the time of receipt of goods, and post-processing is performed by sorting according to a predetermined quality or taste (Japanese Patent Laid-Open No. 3-2).
No. 01941). However, in the above-mentioned prior art, although the appearance quality can be detected by optical means with respect to the quality, the grain thickness having a high correlation with the taste is not taken into consideration. That is, the larger the grain thickness, the better the taste is, and the present invention is an improvement based on this fact.

[0003]

SUMMARY OF THE INVENTION In view of the above, the present invention intends to newly perform quality determination, and has taken the following technical means. That is, a first sorting unit A that is equipped with a grain thickness sorting machine 2 with a predetermined mesh size and sorts grain thickness by receiving unloaded brown rice, and has a mesh size larger than that of the grain thickness sorting unit 2 of the first sorting unit. A plurality of grain thickness sorters 14a to 1 set to be different from each other
4c and the second sorting section B provided with 4c, and the grain size distribution is calculated based on the measurement data from the appearance inspecting device 7 that measures the grain thickness using the sized grains from the first sorting section A as the sample grain, and the first based on the result. 2) The grain thickness sorting control device for brown rice is provided with a control device 12 for selectively setting any of the grain thickness sorting machines 14a to 14c in the sorting unit B.

[0004]

The functions and effects of the invention The brown rice is supplied to the grain thickness sorter 2 of the first sorting section A, and here, for example, the first grain of the brown rice inspection standard is used.
The grain thickness sorter 2 set to have a grade that can secure the grade is used to separate and sort the grain size and the waste grain. Of these, the sized particles are transferred to the second sorting section B via the temporary storage elevator 6, and at this time, some of them are supplied to the appearance inspection device 7 as sample particles. Here, the grain thickness of the brown rice is measured, and the control device 12 receives the detection data and judges the selection of the grain thickness sorters 14a to 14c in the second sorting unit, and the grain thickness is small and the distribution ratio is small. The grain thickness part can be removed to improve the quality of brown rice.

As described above, the sorting machine 14a of the second sorting section
Since the selection of ~ 14c is based on the measurement result of the appearance inspection device 7, the selection can be made by looking at the grain thickness distribution, and the quality of brown rice can be improved, and differentiation can be made even for the same variety.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. Figure 1 shows the general outline of the grain thickness control device for brown rice.
First, a first sorting section A for sorting into sized particles and scrap particles, and the first
The second which receives the sizing from the sorting section A and divides it into predetermined sections
And a sorting section B. The brown rice supplied to the cargo receiving hopper 1 is conveyed by an elevator 3 to a grain thickness sorter 2 with an appropriate mesh size (eg, 1.8 mm) provided in the first sorting section A, and a grain size grading scale 4 and waste grain scale 5 It is the composition measured in each. The grain thickness sorter 2 employs a conventionally known form in which a large number of slit-shaped holes are provided in a sorting cylinder.

The sized particles that have passed through the sized particle meter 4 are transferred to the second sorting section B through the temporary storage elevator 6. Immediately before entering the elevator 6, a part of the sample passes through the visual inspection device 7 and the grain length and grain thickness can be individually detected. The appearance inspecting device 7 is provided with a vibrating plate 8 for receiving an appropriately supplied sample brown rice, a conveying plate 9 for conveying each grain of brown rice, and a conveying plate 9 which is provided in the middle of the conveying plate 9 depending on a passage time or a surface shape. A grain length sensor 10 for measuring the length and a grain thickness sensor 11 for measuring the grain thickness by a pair of left and right light emitting / receiving elements provided at the end of the conveying plate 9 on the discharge side are provided. Thus, it is possible to recognize the grain length and grain thickness distribution state for each predetermined grain number.

In the second sorting section B, a temporary storage tank 1 for receiving the sized brown rice lifted by the elevator 6.
Below 3, there are a plurality of grain thickness sorters 14a having different meshes,
The mesh size of 14b and 14c is 1.85mm, 1.90m, for example.
They are provided side by side with different sizes such as m and 1.95 mm, and can be supplied to a predetermined sorter by the transfer conveyor 15. It should be noted that which size of the sorting machine is selected depends on the detection result of the appearance inspection device 7. For example, when the majority of the grain thickness distribution is closer to the side closer to 1.85 mm, or when it is distributed in the range exceeding 1.95 mm, the secondary sorting is different and the largest grain size can be obtained. In the former case, the sorting machine 14a has a mesh size of 1.85 mm in order to set the mesh size.
In the latter case, the sorting machine 14c having a mesh size of 1.95 mm is selected.

Below the sorters 14a to 14c,
It has a low-quality grain transfer conveyor 16 for receiving and transferring low-quality rice that has passed through the sorting mesh, and a high-quality grain transfer conveyor 17 for receiving and transferring high-quality rice other than the above. These transfer conveyors 16 and 1
Below the discharge-side end of No. 7, measuring devices 18 and 19 are provided so that each particle can be weighed. A part of the good quality grains discharged from the good quality grain measuring device 19 is supplied to the interior inspection device 20 for taste analysis or component analysis. For the interior inspection device 20, for example, a near infrared spectroscopic analysis device is used. Then, the detection data is received and processed by the control device 21.

The high-quality grains are supplied to a brown rice processing device such as a storage tank or a refinement device via the high-quality grain elevator 22. The operation of the above example will be described. The brown rice transferred from the outside rice storage tank etc. to the receiving hopper 1 is
The cargo is lifted by the cargo receiving elevator 3 and supplied to the grain thickness sorter 2 of the first sorting unit A. Here, a grain thickness sorter 2 set to have a grade that can secure the first grade of the brown rice inspection standard is used to sort and separate the grain into sized grains and scrap grains. That is, the waste particles that have passed through the meshes of the non-illustrated sorting cylinder are weighed by the weighing machine 5, while the sized particles that have stagnated in the sorting cylinder from the end on the discharge side to the outside of the machine are weighed by the weighing machine 4. . Elevator 6 for temporary storage
Is transferred to the second sorting section B via. At this time, a part of them is supplied to the visual inspection device 7 as sample particles. Here, the grain length and grain thickness of each grain of brown rice are measured, and the control device 1
2 receives the detection data and judges whether or not the selection in the second selection section B is appropriate or the selection of the selection machine size. For example, when the grain thickness distribution mainly exists in the range of 1.95 mm or more, the sorting machine 14c is used to separate and remove those having a grain size of 1.80 mm or more and less than 1.90 mm to achieve high quality rice production. The brown rice grains of 1.80 mm or more and less than 1.90 mm separated by the sorting machine 14c are received as low quality grains by the conveyor 16, weighed by the weighing machine 18, and appropriately discharged and stored outside the machine. Brown rice with a grain thickness of 1.95 mm or more discharged from the discharge end of the sorting cylinder that has stagnated without passing through the 1.95 mm mesh is received as good quality brown rice by the conveyor 17 and is transferred to the next process via the good quality grain elevator 22. Be done.

On the contrary, when the grain thickness distribution is in the vicinity of 1.80 mm, the whole of the temporary storage tank is supplied to the good quality grain transfer conveyor 17 through the bypass passage 23, and the sorting machines 14a to 14a.
c is not allowed to pass. As described above, the selection of the sorting machines 14a to 14c of the second sorting section B is based on the measurement result of the appearance inspection device 7. Although only the grain thickness has been described above, the target sorter may be selected in view of the relation between grain length and grain thickness.

A part of the good quality grains discharged from the good quality grain measuring device 19 is supplied to the interior inspection device 20 for component analysis, and the taste value and the component containing state are calculated and displayed by the control device 21. Will be done. The interior inspection device 20 incorporates a known near-infrared selective analysis device and is configured to perform component analysis and the like. For example, the taste data can verify whether or not the result of grain thickness selection contributes to good taste. When the sorting effect is not so great, it is transferred from the control device 21 to the control device 12, and consideration is added to loosen the grain size sorting grain size restriction.

Further, it is also possible to store the taste data and the component status before the subsequent whitening processing and compare the status after the whitening processing. FIG. 3 shows another embodiment, in which the same number of grain thickness sorters 24a to 24c are arranged below the grain thickness sorters 14a to 14c of the second sorting section B. These are intended to classify and manage the high-quality grains sorted by the grain thickness sorter 14 into two groups into a large grain thickness group and a standard grain thickness group. The mesh size is set to be larger than that of the grain thickness sorter 14. Reference numeral 25 is an intermediate transfer conveyor for receiving and transferring good quality grains from the grain thickness sorter 14, and 26 is a supply conveyor for receiving it and supplying it to the grain thickness sorter 24. or,
The discharged particles from each of the particle thickness sorters 24a to 24c are the discharge conveyor 27 for the groups having a large particle thickness and the discharge conveyor 28 for the groups having a small particle thickness.
30 can be supplied. On the other hand, brown rice having a small grain thickness, which is separated and discharged from the grain thickness sorters 14a to 14c, is discharged to a low quality grain tank (not shown).

FIG. 4 shows an example of sorting management or blending management when the sorting machines of the second sorting section B are arranged in a plurality of stages in series as shown in FIG. Grain thickness sorter 3 arranged in series
Brown rice, which has been divided into three grain thicknesses by 1, 32,
First, it can be stored in the temporary storage tanks for stratification 33a, 33b, and 33c. After that, it is weighed by the weighing machine 35 through the discharge conveyor 34, and the sorting elevator 36 and the staking conveyor 37 are used.
Through the sorting tanks 38a, 38b, 38c .. After that, a blending device 39 is provided. Sorting tanks 38a, 38
b, 38c ... Measuring device 40 capable of measuring component data or proper processing data before entering or during storage
Is provided, and a plurality of varieties are blended as desired according to the measurement data based on the brown rice measuring device 40 for each of the above categories. At this time, for example, FIG. 5 shows an example in which the grain thickness classification, the component analysis (protein is taken as an example) result, and the sorting destination are graphed. 38a, 38 in the graph
The symbols b, 38c ... Show the sorting tanks. Among them, it is possible to set such that the large grain area of the cultivar A, the medium protein and the large grain area of the cultivar B, and the small protein are blended at a ratio of 50%, respectively. The brown rice thus blended is stored in predetermined product tanks 43a, 43b ... After passing through the product sorting elevator 41 and the product transport conveyor 42.

[Brief description of drawings]

FIG. 1 is an overall flow chart.

FIG. 2 is an explanatory diagram of a visual inspection device.

FIG. 3 is a schematic flowchart of another embodiment.

FIG. 4 is a schematic flowchart of another embodiment.

FIG. 5 is a graph showing an example of sorting by grain thickness-component analysis.

[Explanation of symbols]

A 1st sorting part B 2nd sorting part 1 Loading hopper 2 Grain thickness sorter 3 Elevator 4 Grain sizing meter 5 Scrap grain metering device 6 Temporary storage elevator 7 Appearance inspection device 8 Vibration plate 9 Conveyor plate 10 Grain length Sensor 11 Grain thickness sensor 12 Control device 13 Temporary storage tank 14a, 14b, 14c Grain thickness sorter 15 Transfer conveyor 16 Poor quality particle transfer conveyor 17 Good quality particle transfer conveyor 18, 19 Metering device 20 Interior inspection device 21 Control device 22 High quality elevator

Claims (1)

[Claims] 1. A first sorting unit A which is equipped with a grain thickness sorting machine 2 having a predetermined mesh size and sorts grain thickness by receiving unreceived brown rice, and a mesh size more than the grain thickness sorting unit 2 of the first sorting unit. A second sorting section B including a plurality of grain thickness sorting machines 14a to 14c set to be large and different from each other, and an appearance inspector 7 for measuring grain thickness using the sized particles from the first sorting section A as sample grains. Grain thickness selection of brown rice, which is provided with a control device 12 for calculating a grain thickness distribution based on the measurement data from and calculating and setting one of the grain thickness sorting machines 14a to 14c in the second sorting section B based on the result. Control device.