JP3093110B2 - Normal rice sorting device and milling accuracy measuring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a milling accuracy measuring device for measuring the milling accuracy of rice, and to a normal rice sorting device required for such a milling accuracy measuring device.

[0002]

2. Description of the Related Art Conventionally, when measuring rice milling, the whiteness of polished rice is measured by a whiteness meter, and the result is used as a measure of milling accuracy.

[0003]

However, since the relationship between whiteness and milling accuracy is different for different rice varieties, experience was required to predict milling accuracy based on whiteness. More recently, a spectroscopic analysis technique has been developed in which transmitted light passing through rice is spectrally analyzed to determine the quality, taste, and the like of the rice based on the state of the absorbance spectrum of the rice. In such a case,
The quality and taste of rice show a certain correlation with the milling accuracy of the rice. For example, taking the taste as an example, the taste once improves with an increase in the milling accuracy, but once it exceeds a certain value, it starts to decrease. In such a case, it is necessary to obtain the strictness of the milling precision in a strict sense irrespective of the rice variety. Here, if it is attempted to obtain the milling accuracy from the relationship between the number of grains and the weight without using an optical method, if the sample rice to be subjected to weight measurement contains many defective rice, it is accurate. Although it is not possible to determine the milling accuracy, it is necessary to determine the state of each sampled rice, and since there was no conventional need to select only normal rice, the normal and defective states of each grain targeted by the present application were determined. There was no device for sorting sample rice. Therefore,
An object of the present invention is to determine a state of each sample rice, to obtain a normal rice sorting device capable of sorting normal rice and defective rice, and to be able to accurately measure the milling accuracy by anyone, and furthermore, to obtain rice. It is an object of the present invention to obtain a milling accuracy measuring device capable of strictly capturing the yield and improving the yield in, for example, polished rice.

[0004]

Means for Solving the Problems The characteristic structure of the normal rice sorting apparatus according to the present invention for achieving this object is as follows.
A hopper for accommodating the sample rice, and a single-grain separation device for separating and discharging the sample rice for each single grain from the hopper, wherein the rice grains separated and delivered for each single grain from the single-grain separation device. Individually, a transport path for transporting to the receiving portion is provided, and a weight measuring device for measuring the weight of the sampled rice received in the receiving portion is provided, and the shape of the rice grains is optically detected in the transport path. Determining means for determining whether the rice grains are normal rice or defective rice, and a counting device for counting the number of the rice grains transported from the transport path to the sample receiving unit, A normal rice receiving unit that receives only the rice grains determined to be normal by the determination unit.

[0005] Further, a first characteristic configuration of the milling accuracy measuring apparatus according to the present invention for achieving the above object is to provide the above-mentioned normal rice sorting apparatus and to use brown rice as the sample rice fed into the hopper. The brown rice weight for obtaining the brown rice weight Wb in the normal rice receiving portion when the brown rice of a predetermined number of grains is received in the normal rice receiving portion by passing the single grain separating device, the determining means, and the counting device in this order. Detecting means;
The white rice as the sample rice put into the hopper is passed through the single-grain separation device, the discriminating means, and the counting device in this order, and the white rice of a predetermined grain number is received in the normal rice receiving portion. A white rice weight detecting means for obtaining a white rice weight Wm in the normal rice receiving portion; and a milling precision deriving means for deriving (Wb−Wm) / Wb as a milling precision from the brown rice weight Wb and the white rice weight Wm. Is to be composed. This is the invention according to claim 2 of the present application.

Further, the second characteristic configuration of the milling accuracy measuring apparatus having the above-mentioned first characteristic configuration is that the receiving portion is separated from the normal rice receiving portion by the discriminating means separately from the normal rice receiving portion. A defective rice receiving portion that receives only the determined rice grains, and a defective rice weight for obtaining a defective rice weight Wk that can be received in the defective rice receiving portion when white rice of the predetermined grain number is received in the normal rice receiving portion. A detecting means, and a yield deriving means for deriving Wm × (1-Wk / Wm) / Wb as a yield from the brown rice weight Wb, the white rice weight Wm, and the defective rice weight Wk. . This is the invention according to claim 3 of the present application. And the operation and effect are as follows.

[0007]

In the normal rice sorting apparatus according to the first aspect of the present invention, the sample rice to be put into the hopper is moved from the hopper to the single-grain separation apparatus, separated by the single-grain separation apparatus for each rice grain, and transported. It is carried out on the street. The discriminating means provided in the transport path optically grasps the shape of each rice grain for each single grain, and confirms whether the rice grain is normal or missing. Then, only the sample rice discriminated as normal rice by this discriminating means is accommodated in the normal rice receiving section. Furthermore, since the conveying path is provided with a counting device, the number of sample rice can be checked. Therefore, with the normal rice sorting apparatus of the present invention, it is possible to obtain sample rice whose properties are confirmed for each grain in a state where the quantity is confirmed. The grinding accuracy measuring device having the first characteristic configuration according to claim 2 of the present application includes the above-described normal rice sorting device, and includes the brown rice weight detecting means, the white rice weight detecting means, and the grinding precision deriving means. Can be Then, the brown rice weight Wb, which is the weight of brown rice having a predetermined number of grains, is obtained by processing the brown rice stored in the hopper of the normal rice sorting apparatus by a predetermined procedure by operating the brown rice weight detecting means. Further, similarly, the white rice weight Wm, which is the weight of white rice of a predetermined number of grains, is obtained by the white rice weight detecting means. White rice weight W obtained here
Since m is the weight of the white rice that has been determined to be normal by the determination means, it is important that it is the weight of the normally milled white rice that has not suffered any loss such as chipping. Then, the milling accuracy is obtained by the milling accuracy deriving means. Therefore, in this grinding accuracy measuring device, it is possible to obtain the grinding accuracy in a strict sense that is not affected by defective rice or the like. In the grinding accuracy measuring device having the second characteristic configuration of the present invention according to claim 3 of the present application, the above-described grinding accuracy measuring device is provided with a lost rice receiving portion, a lost rice weight detecting means, and a yield derivation. Means are provided. Then, when the above-described white rice weight detection is performed on the white rice by the defective rice weight detection means, sample rice determined as defective rice is collected in the defective rice receiving portion, and the weight is measured. Here, this weight is the total weight of the sample rice which is splashed when a predetermined quantity of normal white rice is obtained. Then, the yield is calculated by the yield deriving means in accordance with a predetermined formula based on the brown rice weight Wb, the white rice weight Wm, and the lost rice weight Wk which have been determined so far. Here, the obtained yield is an original yield, and it is possible to accurately grasp the rice polishing state.

[0008]

Accordingly, it is possible to obtain a normal rice sorting apparatus capable of discriminating the state of each sampled rice to sort normal rice and defective rice, and to accurately measure the polishing accuracy. In addition, a rice milling accuracy measuring device capable of improving the yield of polished rice, for example, by strictly capturing the yield of rice was obtained.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The milling accuracy measuring apparatus 1 of the present application automatically derives the milling accuracy from the weight of brown rice and milled white rice, and grasps the exact milling accuracy, thereby controlling the milling accuracy and yield in milling. It is intended to improve the quality. Embodiments will be described with reference to the drawings. FIG. 1 shows a schematic configuration diagram of a polishing accuracy measuring device 1 of the present application. The milling accuracy measuring device 1 includes a normal rice sorting device 100 mainly including hardware-side devices. FIG. 2 shows the configuration of the single grain separation device 2 provided in the grinding accuracy measuring device 2, and FIGS. The image discriminating means 4 for processing image information is shown. here,
The image determining means 4 is stored in a control computer 5 described later.

The normal rice sorting apparatus 100 includes a hopper 6 capable of accommodating sample rice such as brown rice and polished white rice, and a single grain separation apparatus 2 capable of separating sample rice from the hopper 6 into single grains and carrying out the single grain. A conveying path 8 for individually conveying the rice grains separated from the single grain separating device 2 for each single grain and carried out to the receiving portion 7
It is provided with. The receiving portion 7 includes a receiving portion 7
Measuring device 9 capable of measuring the weight of the sampled rice received at the receiving portion (all the sampled rice received at the receiving portion instead of each grain)
Is provided. Now, as will be described later, the receiving portion 7 is provided with two receiving portions, a normal rice receiving portion 7a and a defective rice receiving portion 7b, which are individually received in these receiving portions 7. The weight of the sample rice can be measured.

As shown in FIG. 2, the single-grain separating apparatus 2 has a sizing belt 22 provided between a pair of rotating rollers 21 and an upper portion of the belt 22 for removing excess rice. It is provided with a removal brush 23. The belt 22 has on its front surface a rice grain receiving portion 24 for individually receiving rice grains. Further, a chute member 25 for guiding the rice grains for each single grain in the conveying path 8 is provided on the lower side of the single grain separating apparatus 1. The base end of the single-grain separation device 1 is connected to the discharge portion 6a of the hopper 6, while the discharge end 25a of the chute member 25 is connected to the conveying path 8.

The conveying path 8 optically detects the shape of the grains moving on the conveying path for each grain, and determines whether the rice grains are normal rice or defective rice depending on the shape pattern. There is provided a determination means for determining whether or not there is. The discriminating means includes the photodetector 3 and the image discriminating means 4 for processing image information detected from the photodetector 3 as described above. The shape pattern detected by the photodetector 3 has a pseudo-elliptical shape. If the grain is present, the grain is determined to be normal rice, and if the grain has an elliptical shape that is partially largely missing, the grain is determined to be defective rice. The transport path on the lower side of the determination means is divided into two systems: a normal rice transport path 10 directly connected to the transport path on the upper side, and a defective rice transport path 11 provided at a position separated from the transport path on the upper side. Forked.
The branching unit 12 has a spraying device 1 for individually moving grains from the conveying path 6 to the defective rice conveying path 11 by an air jet.
No. 3 is provided, and only the rice grains discriminated as defective rice by the above-described discriminating means are blown off toward the defective rice transport path 11 side. Therefore, the normal rice moves on the normal rice transport path 10 directly connected to the better transport path. A normal rice receiving section 7a and a defective rice receiving section 7b are provided on the lower side portions of the normal rice transport path 10 and the defective rice transport path 11, respectively. Therefore, each of the receiving portions 7a and 7b can receive only normal rice or defective rice. The weight of the sample rice received in these receiving portions 7 can be measured by the weight measuring device 9 described above. Further, the normal rice transport path 10 is provided with a counter 14 as a counting device for counting the number of rice grains passing through the portion 10.

The above is the schematic configuration of the normal rice sorting apparatus 100. The control means 1000 stored in the control computer 5 for operating the apparatus 100 to obtain the milling accuracy and the yield of the sample rice is provided. ing. That is, the normal rice sorting apparatus 100 is provided with the control means 1000,
A polishing accuracy measuring device 1 is configured. The control computer 5 includes a brown rice weight detecting means 1001, a white rice weight detecting means 1002, a grinding accuracy deriving means 1003, a defective rice weight detecting means 1004, and a yield deriving means 1005. These means are the single grain separation device 2, the discriminating means 3,
4. Spraying device 13 and counting device 1 linked to this
4. By operating the weight measuring device 9 in a predetermined procedure, necessary information is obtained, and the milling accuracy and the yield are obtained from the information.

The brown rice weight detecting means 1001 allows the brown rice as the sample rice to be put into the hopper 6 to pass through the single grain separating device 2, the discriminating means 3, 4 and the counting device 14 in this order, for example, 1000 grains. When the brown rice of a predetermined number of grains is received in the normal rice receiving portion 7a, an operation of calculating the brown rice weight Wb in the normal rice receiving portion 7a is performed. Here, the brown rice weight Wb is obtained by measuring the weight of normal brown rice received in the normal rice receiving portion 7a by the above-mentioned weight measuring device 9. The white rice weight detection means 1002 passes the white rice as the sample rice put into the hopper 6 in the order of the single grain separation device 2, the discrimination devices 3, 4, and the measurement device 14,
For example, when white rice having a predetermined number of grains such as 1000 grains is received in the normal rice receiving portion 7a, an operation of calculating the white rice weight Wm in the normal rice receiving portion 7a is performed. Here, the white rice weight Wm is obtained by measuring the weight of normal white rice received in the normal rice receiving portion 7a by the above-mentioned weight measuring device 9. When the white rice weight detecting means 1002 operates to receive white rice of the predetermined grain number in the normal rice receiving section 7a, the defective rice weight detecting means 1004 receives the defective rice received in the defective rice receiving section 7b. The weight Wk is determined.
Here, the defective rice weight Wk is obtained by measuring the weight of the defective rice received in the defective rice receiving portion 7b by the weight measuring device 9 described above.

The milling accuracy deriving means 1003 calculates the brown rice weight Wb detected by the brown rice weight detecting means 1001.
From the white rice weight Wm detected by the white rice weight detection means 1002, (Wb−Wm) / Wb is derived as the milling accuracy. The yield deriving unit 1005 detects the brown rice weight Wb detected by the brown rice weight detecting unit 1001.
From the white rice weight Wm detected by the white rice weight detection means 1002 and the defective rice weight Wk detected by the defective rice weight detection means 1004, Wm × (1-Wk / W
m) / Wb is derived as a yield.

The above is the configuration of the normal rice sorting apparatus 100 of the present application and the milling accuracy measuring apparatus 1 provided with the apparatus. Hereinafter, an operation procedure when the milling accuracy and the yield of the sampled rice are obtained by using the apparatus 1 will be described. 1 The operator throws brown rice as sample rice into the hopper 6. At this time, a designation that the sample rice is brown rice is input to the control computer 5. With this operation,
In the apparatus 1, brown rice weight Wb, which is the weight of brown rice having a predetermined number of grains, is measured according to a command from the brown rice weight detecting means 1001. 2 Next, white rice as sample rice is put into the hopper 6. At this time, a designation that the sample rice is white rice is input to the control computer 5. Along with this operation, in the apparatus 1, the white rice weight Wm, which is the weight of the white rice having a predetermined number of grains, is measured in accordance with the instruction from the white rice weight detecting means 1002, and the defective rice is detected in accordance with the instruction from the defective rice weight detecting means 1004. The weight Wk is determined. 3 Then, the grinding accuracy deriving means 1003
b−Wm) / Wb is derived as the milling accuracy. 4 Further, by the yield deriving means 1005, Wm
× (1−Wk / Wm) / Wb is derived as the yield. 5 The milling accuracy and yield obtained through the above processes are
Displayed and output.

[Alternative Embodiment] In the above embodiment, a single hopper is prepared as a hopper for accommodating the sample rice, and brown rice and white rice are alternately charged into the hopper in a batch manner for measurement. Although an example of performing is shown, a hopper for brown rice and a hopper for white rice are provided in the device in advance, and sequentially,
If the brown rice and the white rice are configured to be supplied to the single grain separation device, the measurement of the milling accuracy and the measurement of the yield can be automatically performed, and the usability is good.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a polishing accuracy measuring device.

FIG. 2 is a diagram showing a configuration of a single-particle separation device.

FIG. 3 is a diagram showing a configuration near a photodetector;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Milling precision measuring device 2 Single grain separation device 3 Discriminating means 4 Discriminating means 6 Hopper 7 Receiving part 7a Normal rice receiving part 7b Missing rice receiving part 8 Transport path 9 Weight measuring device 10 Normal rice transport path 11 Missing rice transport path 12 Part 14 Counting device 100 Normal rice sorting device 1001 Brown rice weight detecting means 1002 White rice weight detecting means 1003 Milling precision deriving means 1004 Missing rice weight detecting means 1005 Yield deriving means

Continuation of front page (56) References JP-A-56-158176 (JP, A) JP-A-60-194362 (JP, A) Patent 2881838 (JP, B2) Patent 2689293 (JP, B2) Patent 2637474 (JP, A) B2) JP 4-38456 (JP, B2) JP 7-14507 (JP, B2) JP 2-616 (JP, B2) JP 61-2019 (JP, B2) JP 62 -47070 (JP, B2) JP 62-24129 (JP, B2) JP 54-25265 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01G 17/00 B02B 7/00

Claims (3)

(57) [Claims] 1. A hopper (6) for accommodating sample rice, and a single-grain separation device (2) for separating and transporting the sample rice for each single grain from the hopper (6), wherein the single-grain separation is performed. The apparatus is provided with a transport path (8) for individually transporting the rice grains separated from the apparatus (2) for each single grain to the receiving section (7), and the sample rice received in the receiving section (7). A weight measuring device (9) for measuring the weight of the rice grains, and optically detecting the shape of the rice grains in the transport path (8) to determine whether the rice grains are normal rice or defective rice Determining means (3, 4), and a counting device (14) for counting the number of the rice grains transported from the transport path (8) to the receiving portion (7), as the receiving portion (7). A normal rice receiving unit that receives only the rice grains determined to be normal rice by the determination means (3, 4) A normal rice sorting apparatus provided with (7a). 2. The normal rice sorting apparatus according to claim 1,
0), and the brown rice as the sample rice to be put into the hopper (6) is separated into the single grain separation device (2), the discriminating means (3,
4) Brown rice weight detecting means for obtaining brown rice weight Wb in the normal rice receiving portion when the normal rice receiving portion (7a) receives brown rice of a predetermined number of grains through the counting device (14) in this order. (1001), the white rice as the sample rice put into the hopper (6), the single-grain separation device (2), the discriminating means (3,
4) The white rice weight Wm in the normal rice receiving portion (7a) when white rice of a predetermined grain number is received in the normal rice receiving portion (7a) is determined by passing through the counting device (14) in this order. A white rice weight detecting means (1002), wherein (Wb−
A milling accuracy measuring device including a milling accuracy deriving means (1003) for deriving Wm) / Wb as the milling accuracy. 3. The defective rice receiving part which receives only the rice grains determined as the defective rice by the determining means (3, 4) separately from the normal rice receiving part (7a) as the receiving part (7). A defective rice weight detecting means for determining a defective rice weight Wk to be accepted by the defective rice receiving portion (7b) when the normal rice receiving portion (7a) is provided with white rice having the predetermined grain number. (100
4. A yield deriving means (1005) for deriving Wm × (1-Wk / Wm) / Wb as a yield from the brown rice weight Wb, the white rice weight Wm, and the defective rice weight Wk. Milling accuracy measuring device as described.