JPH10185826A - Rice quality measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the treatment time that tends to be relatively longer, by reducing the operation time that is not achievable in a series operation and especially incorporating a process by a polishing means from the beginning. SOLUTION: The measuring device has a distribution means 2 for distributing thrown unpolished rice at least into three systems when simultaneously measuring the appearance and internal qualities of rice, an appearance quality measurement means 5 for measuring an appearance quality by receiving one of the three systems, an internal appearance quality measurement means 6 for perform a spectroanalysis under non-crushed state by receiving one of the remaining systems, and a polishing means 7 for polishing after receiving the remaining system and then supplying white rice to the internal quality measurement means 6 for treatment them in parallel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a rice grain quality measuring device.

[0002]

2. Description of the Related Art Generally, individual measuring means are being established for measuring the appearance quality and the inward quality of brown rice, but total quality measurement combining these is required.

[0003]

Therefore, the appearance quality measuring means and the introspective quality measuring means are simply provided in parallel and these measuring means are connected in series. However, the processing time of each process is accumulated. As a result, the working time is unnecessarily long.

[0004]

SUMMARY OF THE INVENTION The present invention provides a rice grain quality measuring device which can solve such problems, and has taken the following technical means. That is, in a device for simultaneously measuring the appearance quality and the introspective quality of rice, a distributing means 2 for dividing input brown rice into at least three systems.
And external appearance quality measuring means 5 receiving one of the three systems and measuring the external quality, internal quality measuring means 6 receiving the other one and performing spectroscopic analysis in a non-crushed state, and rice milling receiving the remaining one After that, a rice grain quality measuring apparatus was provided, which was provided with a whitening means 7 for supplying white rice to the introspective quality measuring means 6 and configured to process them in parallel.

[0005]

According to the present invention, the brown rice sample is distributed to three systems and supplied to the appearance quality measuring means 5, the introductory quality measuring means 6 or the whitening means 7, respectively, and the processing in each means is performed in parallel. The time not found in serial work can be reduced. Particularly, by incorporating the process by the whitening means 7 from the beginning, the processing time, which is relatively long, can be reduced.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an outline of a brown rice shipping section of a grain co-drying adjustment facility and a rice quality measuring device provided for performing a rice inspection at a brown rice distribution stage. A distribution device 2 is provided below a hopper 1 for receiving a brown rice sample. It is provided for you. This dispensing device 2 divides the brown rice falling from the hopper 1 into three parts and temporarily stores them under the temporary storage tanks 3a and 3a.
In this configuration, the same sample can be distributed to b and 3c.

[0007] The temporary storage tanks 3a, 3b, 3c are respectively provided with appearance quality measuring means 5 in the storage tank 3a, and in-view quality measuring means 6 in the storage tank 3b via feed valves 4a, 4b, 4c. The tank 3c is configured so that the whitening means 7 can be seen. Surplus particle discharge channels 4'a, 4'b, 4'c are connected to the supply valves 4a, 4b, 4c, respectively. Among these, the appearance quality measuring means 5 receives one grain and supplies it to the rotating disk 5a, and inputs the appearance information to the control unit 8 by means of optical transmission and reflection detection means, while controlling the appearance. In this configuration, the grades of good brown rice, immature grains, colored grains, dead rice, cracks in the body, etc. are determined. The results of these determinations are displayed on a display unit described below, and are sorted and selected for each fixed number of particles (for example, 1000 particles), supplied to the first sample packaging means 9 and packed in a bag.

In the sample packaging, the roll film 10 is provided so as to be able to be fed out while looking at the grain discharge portion after the quality measurement, and is welded along the opposing edges while being formed into a left-right folded shape. It is configured to be welded and divided into each group of grains, colored grains, dead rice, and cracks in the body. These can be separated and supplied to the starting end side of the discharge conveyor 11 in units of 3 × 1000 grains in total. .

The introspection quality measuring means 6 is configured to be able to analyze the quality of non-milled brown rice components, physicochemical properties, taste, etc. by near-infrared spectroscopy. The spectroscopic device main body 12 and the detecting unit 13 are provided. The detecting unit 13 is provided with a sample cell 14 containing a grain sample to be analyzed to move up and down, and moves up to receive the sample in the hopper 15 ′. Then, at the appropriate position during the descent, the spectroscopic analysis is performed by irradiating near infrared rays.

In the detecting unit 13, one or both of a transmitted light detector for detecting the transmitted light of the sample and a reflected light detector for detecting the reflected light are mounted. When the sample cell 14 is lowered to the lowest value, the lower opening / closing plate 14a is automatically opened to discharge the stored sample downward. The spectroscopic device body 12 includes a light source 15, a reflecting mirror 16, a diffraction grating 17, a motor 18 for driving the diffraction grating 17, and the like.

In response to the absorbance signal of the transmitted light or the reflected light, the control unit 19 generates a protein content, a component such as amylose, and a quality characteristic such as stickiness and taste based on a calibration curve prepared in advance and stored in a storage unit 20. Processing such as obtaining a value is performed. The protein content and the like of the measurement sample determined by the control unit 19 are displayed on a display 21 constituted by a liquid crystal display or the like. The spectroscopic unit of the near-infrared spectrometer is not limited to a diffraction grating, but may be a fixed filter, a tilt filter, or a semiconductor laser.

Further, the whitening means 7 includes a whitening roll 7a,
The brown rice fed out quantitatively from the feed valve 4c is configured to be subjected to a whitening treatment at a constant whitening pressure.
Thus, it can be supplied to the hopper 15 of the introspection quality measuring device 6. Therefore, the introspection quality measuring device 6 is configured to be capable of measuring the content and the like by the component analysis under the condition of brown rice and the component analysis under the condition of white rice.

The sample cell 14 has a delivery valve 4b.
It is assumed that brown rice having a constant volume is supplied by the predetermined rotation of the metering device, and they are subjected to near-infrared spectroscopic analysis as they are, and thereafter, the discharge opening / closing valve 14a is opened, and the metering mechanism 23 configured to load the sample having the constant volume with a load cell or the like. It is configured to supply and discharge to the weighing hopper 24. That is, the control unit 25 can calculate the brown rice weighing by the combination of the weighing signal from the weighing hopper 24 and the volume signal by the feed valve 4b, and these constitute the volume weight measuring means 26.

The weighing hopper 24 of the volumetric weight measuring means 26 has a structure capable of receiving the white rice put into the sample cell 14. The volume of white rice is the same
2 is provided by a volume measuring means 27 provided in the middle of the path, and the volume measuring means 27 includes the delivery valve 4
This is configured as a b-type delivery valve. 27 'is a surplus particle discharge channel. The control unit 25 controls the volume measuring means 2
The weighing signal is calculated based on the volume signal and the weighing signal from 7 and can be displayed on the display unit 21.

The brown rice and the white rice of which the specific gravity has been measured are supplied to the second sample packaging means 28. The second sample packaging means 28 has the same form as the first packaging means, and although not described in detail, brown rice and white rice can be continuously packaged. The predetermined grain number measuring means 29 is, for example, a thousand grain weight measuring means, and the 3000 sample bag 30 packaged by the first sample packing means 9 is used.
Is measured by the weighing means 31 during the transfer of the discharge conveyor 11, a weighing signal is input to the control unit 25, and in this case, it is calculated by converting it to a tare weight by appropriately taring it.

Numeral 32 denotes a final conveyor, which can be accommodated and stored for each same sample in a sample storage box 35 waiting below in synchronization with a conveyor 34 for sample bags 33 discharged from the second sample packaging means 28. It is. In addition,
A slip (not shown) in which the person to be inspected, product type, date, and the like are printed out can be simultaneously packed in the sample bags 30, 33 and the like.

The operation of the above example will be described. When the brown rice sample A to be inspected is put into the hopper 1, the distribution device 2 distributes the brown rice A into approximately three equal parts. Temporary storage tank 3a
The brown rice is supplied from the feed valve 4a to the rotating disk 5a of the appearance quality measuring means 5 while being fed out by predetermined grains, and the appearance is detected by the optical detecting means while being scraped up by each grain, and the information is used as the control unit. It is determined whether 8 is good brown rice, immature grain, colored grain, dead rice or cracked body. The measurement is performed for each 1000 particles, and three times 3000 particles are measured, and the discharging means is operated to discharge each of them to a predetermined sorting / discharging position (not shown). At the same time, the ratio of each grain to the total number of grains is calculated and stored in the storage unit.

One measurement of the appearance quality measuring means 5 takes about 60 seconds, and about 30 seconds for sample switching takes about 4 to 5 minutes, during which time the sample A from the temporary storage tank 3b is kept at a predetermined time. The dispensing capacity is secured by the dispensing valve 4b and charged into the ascending sample cell 14. When the sample cell 14 descends and reaches a predetermined position, near-infrared spectroscopy is performed. For example, the taste value, protein content, moisture, etc. of the brown rice sample A are calculated based on a preset calibration curve, and these are also stored in the storage unit. The required time is about 60 seconds for one measurement. Therefore, if the averaging process is performed three times, it is almost the same as the appearance quality measuring means 5.

The sample A supplied to the whitening means 7 is subjected to whitening under a standard whitening pressure. Since the respective processes of the appearance quality measuring means 5, the introspective quality measuring means 6, and the refining means 7 are performed in parallel, a plurality of determination processes of the same sample A and handover to the next process can be quickly performed. The brown rice sample sorted by the appearance quality measuring means 5 is the first brown rice sample.
Are packed in bags by the sample wrapping means 9, cut off in units of the sample A and transferred to the conveyor 11. Thereafter, the weight is measured by the weighing unit 31, and a predetermined number of grains (1,000 grains weight) can be measured.

The brown rice sample A measured by the introspection quality measuring means 6 reaches the lowest position by the lowering of the sample cell 14 after completion of the measurement, where the opening / closing plate 14a is in an automatic discharge state and the sample is weighed by the volume weight measuring means 26. Weighing hopper 2
4 On the basis of the weighing signal Wg and the volume signal Vg obtained from the previous rotation of the delivery valve 4b, the control unit 25
Calculate and store the brown rice bulk weight using Wg / Vg.

While the brown rice sample A is supplied to the weighing hopper 24, the volume of the white rice from the whitening means 7 is measured by the delivery valve 27 in the conveying means 22, and the white rice is put into the sample cell 14. Near-infrared analysis of white rice is performed, and in this case, for example, the same taste value, protein content, or moisture as those of the brown rice are measured. Also, the volumetric weight is calculated for the white rice sample. The white rice sample is put into the weighing hopper 24 after the brown rice sample has already been discharged, and the weighing signal Wh and the measured volume Vh are used to determine and store the white rice volumetric weight.

The samples of brown rice and white rice for which the measurement of each specific gravity has been completed are supplied to the second sample packaging means 28, continuously packed in a bag, and conveyed to a predetermined discharge position by the conveyor 34. From the good brown rice ratio and the colored grain ratio confirmed by the appearance quality measuring means 5, the brown rice bulk weight by the bulk weight measuring means 26, and the 1,000 grain weight obtained from the predetermined grain number measuring means 29, the sample A is a brown rice inspection standard. It can be determined whether the quality is applicable. According to the introspection quality measuring means 6, a moisture value, a taste value and the like can be obtained as reference information.

Further, not only the above-mentioned brown rice sample state but also various kinds of data under the white rice state can be obtained, and the quality and quality in a state close to rice cooking can be obtained. Note that, for example, the control unit 25
Then, the ratio between the brown rice specific gravity and the white rice specific gravity is compared with a preset value, and when the white rice specific gravity is higher than the range predicted in advance, it can be estimated that the rate of occurrence of crushed grains is high. Can be checked, and it is easy to know the setting of the conditions for the whitening process and the necessity of the pre-humidification.

In the above embodiment, since the brown rice sample used in the appearance quality measuring means 5 is used as the predetermined grain number measuring means 29, the number of sample grains that can be input as information for the purpose of determining the appearance of each sample is determined. Can be used,
Although the configuration can be simplified, the configuration is not necessarily limited to this configuration. A separate counting means may be provided and the volume weight may be obtained by comparison with the weighing signal. The number of particles to be measured does not necessarily have to be a thousand, but may be a multiple or a fraction, or may be a fraction. Conversion is easy.

In this embodiment, the supply route is simplified because the brown rice discharged from the sample cell 14 and the white rice are supplied to the bulk weight measuring means 26 for measurement, but the supply path can be simplified. In the above embodiment, the appearance quality measuring means 5 measures only the brown rice sample, but the same processing may be performed on white rice. In this case, by knowing the appearance quality after the whitening process, it is possible to know the quality assurance or the whitening yield at the time of shipping white rice.

[Brief description of the drawings]

FIG. 1 is an overall view showing an outline of a measuring apparatus.

FIG. 2 is an example of a time chart.

[Explanation of symbols]

2. Distribution means 5. Appearance quality measurement means 6.
Introspection quality measurement means 7

Claims (1)

[Claims] An apparatus for simultaneously measuring the appearance quality and the introspective quality of rice, wherein the distribution means 2 divides brown rice into at least three systems, and the appearance quality is measured by receiving one of the three systems to measure the appearance quality. Means 5, an interior quality measuring means 6 for receiving the other and performing spectroscopic analysis in a non-pulverized state, and a polishing means 7 for receiving the remainder and subjecting the processed rice to white milling and supplying the white rice to the interior quality measuring means 6. And a rice quality measuring device configured to process them in parallel.