JPH04284855A - Grain self-certification apparatus - Google Patents

Abstract

PURPOSE:To achieve the rationalization of a grade and the enhancement of accuracy by reflecting the size distribution state of uniform screened grains at the time of the graduation of grains. CONSTITUTION:A sample is subjected to dehulling treatment by hulling rolls 3, 3 and sorted into uniform grains and refuse grains by a main sorting cylinder 6. The screened grains and refuse grains are weighed by a weighing device 7 and the screened grains are supplied to an optical sorter to exclude foreign matter and the screened grains are sorted into N grades corresponding to large, medium and small particle diameters by a screened grains sorter 11. A weighing device 18 weighs the wts. of the screened grains sorted into N grades at every grades. A grade judging device 20 grades samples on the basis of the respective measured values of the weighing devices 7, 18.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is applied to a grain drying and preparation facility that receives grain from each producer and ships it after passing through various processes such as drying, sorting, and storage. This invention relates to a grain self-testing device that collects grains as samples for self-testing and self-tests the samples.

0002

[Prior Art] Conventionally, in this type of device, when a dried sample for self-inspection is put into a weighing hopper, its weight is measured with a scale, and then it is dehulled with a huller. It is known that grains are sorted into regular grains and waste grains using a grain sorter, the weights of the regular grains and waste grains are weighed using a scale, and the quality of the grain is graded based on the results. There is.

0003

[Problems to be Solved by the Invention] Incidentally, the sorted grains sorted in this way contain a mixture of large and small grains, so even if they are of the same grade, the distribution of the grains varies. However, with conventional equipment, the distribution state of size of grain size is not reflected at all in determining the grade, and the determined grade is not necessarily accurate and lacks fairness, and there is a problem that it cannot meet the demands of producers and consumers. was occurring. Therefore, in view of this point, the present invention aims to reflect the distribution state of the size of the grain size in determining the grade, thereby making it possible to accurately determine the grade according to the requests of producers and consumers. .

0004

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a dehulling means for dehulling a grain sample, and a main body for sorting the dehulled sample into regular grains and waste grains. A sorting means and the sorted particles are divided into N according to the particle size.
A grain sorting means for sorting into classes, a weight detection means for detecting the weight of each class of grain sorted into N classes and the weight of the waste grains, and a grade of the grain sample based on the detection results. and a grade determination means for determining.

[0005]

[Operation] In the present invention constructed as described above, the dehulling processing means dehulls the grain sample, and the main sorting means sorts the dehulled sample into regular grains and waste grains. The particle sorting means sorts the sorted particles into N classes such as large, medium, and small according to the particle size. The weight detection means detects the weight of each class of sorted grains sorted into N classes and the weight of waste grains, respectively, and the grade determination means determines the grade of the grain sample based on the detection results. From each detection value of the weight detection means, for example, the distribution situation of large, medium, and small size particles can be grasped, so the grade determination means can make a grade judgment that reflects the mixed situation of size particles.

[0006]

Embodiment FIG. 1 is an overall schematic diagram of an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a hopper, which samples grains received at a grain drying and preparation facility, and supplies samples after drying them in a sample-dedicated dryer (not shown). A weighing device 2 for measuring the weight of the sample is provided below the discharge port of the hopper 1. This weighing device 2 includes a pair of left and right hulling rolls 3 for hulling the weighed sample;
Connect 3. These hulling rolls 3, 3 are also equipped with a predetermined means for rubbing the sample twice (not shown).
. A bifurcated chute 4 having a switching valve is provided below the hulling rolls 3, 3.

Each outlet of the bifurcated chute 4 is connected to a corresponding inlet of a pair of left and right main sorting cylinders 6, 6 rotatably arranged in the box body 5. The main sorting tubes 6, 6 each have a large number of small holes in their tube walls in order to sort the sample into regular particles and waste particles based on the difference in size. At the bottom outlet of the box body 5, a weighing device 7 is disposed for individually weighing the size grains and waste grains sorted by the main sorting tubes 6, 6.

[0008] The grains weighed by the scale 7 are sorted by a conveying device 8.
It is configured to supply the optical sorter 9 to the optical sorter 9. This optical sorter 9 removes foreign substances such as pebbles contained in the sized particles by using the difference in color from the sized particles, and extracts only the necessary sized particles. The sized particles discharged from the optical sorter 9 are configured to be supplied to the sized particle sorter 11 by a conveyance device 10.

[0009] The grain sorting device 11 is for sorting grains into N classes according to their size, and in this embodiment there are 3 classes.
In order to sort into classes, it is composed of a first grading sorter 11A and a second grading sorter 11B. The first sizing and sorting device 11A includes a bifurcated chute 12 having a switching valve, a pair of left and right first sizing and sorting tubes 14 connected to each discharge port of the bifurcated chute 12 and rotatably arranged in a box body 13; It consists of 14. The second sizing and sorting device 11B includes a bifurcated chute 15 having a switching valve, a pair of left and right second sizing and sorting tubes 17 connected to each discharge port of the bifurcated chute 15 and rotatably arranged in a box body 16; It consists of 17.

Like the main sorting tubes 6, 6, the first particle sorting tubes 14, 14 and the second particle sorting tubes 17, 17 are used to sort the particles according to their size differences. Drill a number of small holes in the wall. Then, the size of the small holes (mesh) of the main sorting tubes 6, 6 is set to G1, and the size of the small holes (mesh size) of the main sorting tubes 6, 6 is set to G1.
G2, and the second size sorting cylinder 17,1
If the size of the 7th stitch is G3, these are the following (1)
Make it as follows.

G1<G2<G3 (1)
Here, each value of G1, G2, and G3 is, for example, G1=1.
8mm, G2=1.9mm, and G3=2.0mm.

The grains sorted into three classes by the grain sorter 11 as described later are supplied to a scale 18 in the order of small, medium, and large, and their respective weights are measured. As will be described later, the packaging device 19 stores waste grains that have been weighed by the scale 7;
The sized particles, etc. that have been measured by the scale 18 are packaged individually and in series.

The packaging device 19 determines the grade of the sample as described below based on measurement data from the scale 2, scale 7, and scale 18, and displays the determination result on a display and prints it on a printer. It is attached to the grade determination device 20 that prints.

Next, an example of the operation of the embodiment configured as described above will be explained with reference to the flowchart shown in FIG.

Now, when a sample of paddy is put into the hopper 1 (S1), only a predetermined amount of paddy is supplied to the scale 2 and its weight is measured (S2), while the remaining paddy is packaged by appropriate means. After being transported toward the device 19, only the paddy is packaged (S3). The weighed paddy goes to hulling roll 3,
After hulling is performed twice in Step 3 (S4), the rice is fed to a pair of left and right main sorting tubes 6, 6 via the bifurcated chute 4, where it is sorted into sized grains and waste grains (immature grains) (S5 ). As a result of the sorting, the waste particles accumulate at the bottom of the box 5, and the sorted particles remain in the main sorting tubes 6, 6.

[0016] Then, after discharging the waste grains (immature grains) from the box body 5 and measuring their weight W4 with the scale 7 (S6),
The particles are transported toward the packaging device 19 and only the waste particles are packaged (S7). Furthermore, the sorted particles remaining in the main sorting cylinders 6, 6 are discharged from the cylinders and their weight W5 is measured by the scale 7 (S8), and then conveyed to the optical sorter 9 by the conveying device 8, where Unnecessary foreign substances such as pebbles included in the grading are removed using the difference in color from the grading, and only the necessary grading is taken out (S9).

[0017] Subsequently, the sized grains from which foreign matter has been removed are supplied to the sized grain sorter 11 (S10), where the sized grains are sorted into three classes according to their sizes as follows. That is, in the sorting of the first size sorting cylinders 14, 14, only the first size size D of the size D of the size G1≦D<G2 and small particles are selected for the first size size sorting. The particles are discharged from the tubes 14, 14 and accumulate at the bottom of the box body 13, while larger particles remain in the first particle sorting tubes 14, 14. Therefore,
The first sorted grain in the box body 13 is guided to the weighing device 18 and its weight W is measured.
After weighing 1 (S12), the first sorted particles are transported to the packaging device 19 and packaged only (S13).

On the other hand, the sized particles remaining in the first grading and sorting tubes 14, 14 are supplied to the second grading and sorting tubes 17, 17, where they continue to be subjected to sorting action. As a result, only the second sorted particles with size D of particle size satisfying G2≦D<G3 and medium-sized particles are discharged from the second particle size sorting tubes 17, 17 and deposited at the bottom of the box body 16. The sized particles that accumulate and are larger remain in the second sized sized and sorted cylinders 17, 17. Therefore, after guiding the second sized grain in the box body 16 to the scale 18 and measuring its weight W2, (
S15), the particles are transported toward the packaging device 19, and only the second sorted particles are packaged (S16).

Next, the third size particles remaining in the second particle size sorting tubes 17, 17 whose size D satisfies G3≦D and which have large particles are led to the scale 18 and their weight W3 is measured. After that (
S18), the particles are transported toward the packaging device 19, and only the third sorted particles are packaged (S19). As a result, from the packaging device 19, as shown in FIG. 30 is ejected.

By the way, each measurement data of the paddy grains, waste grains, first grain size, second grain size, and third grain size measured by the scales 2, 7, and 18 is supplied to the grade determination device 20. Based on these measurement data, the grade determiner 20 determines the grade of the sample as follows, and displays the determination result on a display and prints it out on a printer.

That is, first, the weight W4 of the waste grains measured with the scale 7 and the weight W5 of the sorted grains also measured with the scale 7.
Grade the sample based on, e.g. 1st, 2nd, 3rd grade.
etc., and etc., and so on.

By the way, the respective weights W1, W2, and W3 of the first sorted small grain, the second sorted medium grain, and the third sorted large grain measured with the scale 18 are the weights W1, W2, and W3 of the first sorted grain of small grain, the second sorted grain of medium grain, and the third sorted grain of large grain. Reflects the distribution situation of large. Therefore, the weight W5 of the sized grain measured with the weighing device 2
and the following (2) using the respective weights W1, W2, and W3 of the first sorted particle, the second sorted particle, and the third sorted particle measured with the scale 18.
Calculate the quality P using the formula.

P=W1・P1+W2・P2
+W3・P3/W5 (2) However, P1<P2
<P3. Furthermore, the values of P1, P2, and P3 are, for example, P1=1.0, P2=1.2, and P3=1.5.

Then, the quality P calculated in this way is compared with a predetermined value, and when the formula (3) is satisfied, the quality is set to, for example, A.
The quality is, for example, B rank when formula (4) is satisfied, and the quality is, for example, C rank when formula (5) is satisfied.

[0025]PA≦P (3)PB
≦P<PA (4) PC≦P<PB (5) Next, based on the grade and quality obtained in this way, the same grade is further graded, and this is used as the grade of the sample. Then, the grade obtained in this manner is printed on a slip together with the above-mentioned weighing data using a printer, and the slip is packaged together with paddy etc. in a part of the package 30.

[0026] Therefore, in the embodiment of the present invention, it is possible to more appropriately grade within the same grade by reflecting the distribution situation of the grains of the sized particles, so that appropriate grading can be carried out in accordance with the demands of producers and consumers. . Currently, in the case of paddy rice brown rice, grain size of 70% or more is standardized as first-class rice, but there is no grading within first-class rice. However, according to the embodiments of the present invention, it is possible to grade and subdivide first-class rice, which is meaningful as it allows detailed responses to the demands of producers and consumers.

[0027]

Effects of the Invention As explained above, in the present invention, a grain sample that has been subjected to hulling treatment is sorted into regular grains and waste grains, and the classified grains are classified into grain sizes such as large, medium, and small. According to the present invention, the grain samples are sorted into N classes according to the classification, and the weight of each class of grains sorted and the weight of waste grains are detected respectively, and the grade of the grain sample is determined based on the detection results. It is possible to perform grading that reflects the size distribution of sized grains, and it is possible to perform appropriate and accurate grading that meets the needs of producers and consumers.

[Brief explanation of the drawing]

FIG. 1 is an overall diagram showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is a flowchart illustrating an example of the operation of the embodiment of the present invention.

FIG. 3 is a diagram showing an example of packaging using a packaging device.

[Explanation of symbols]

2, 7, 18 Measuring instrument 3 Husking roll 6 Main sorting tube 9 Optical sorter 11　Sizing sorter 19 Packaging equipment 20 Grade determiner

Claims (1)

[Claims] Claim 1: A dehulling means for dehulling a grain sample, a main sorting means for sorting the dehulled sample into regular grains and waste grains, and the sorted grains according to grain size. a grain sorting means for sorting the grain into N classes; a weight detection means for detecting the weight of each class of grain sorted into N classes and the weight of the waste grain; A grain self-inspection device comprising: grade determination means for determining grade.