JPS58211630A - Apparatus for continuously measuring polished degree of grain - Google Patents

Abstract

PURPOSE:To measure the polished degree of flowing grain continuously by flowing the grain at the optimum state for measuring by changing the angle of a sample path, and measuring the reflected light and transmitted light from the sample. CONSTITUTION:A wall 13' of a sample flow path 13 on the side of a light source device is inclined to an angle, so that the longitudinal direction of each grain is aligned with the advancing direction and the grain flows in this state. A wall 13'' of the sample flow path 13 on the opposite side of the light source device is constituted at an angle, so that the grain is compressed to the wall and flows without a gap between the wall and the grain. Meanwhile, light from the light source device, which comprises a light source lamp 7, a heat wave absorbing filter 8, a monochromatic filter 9, and a condenser lens 10, is irradiated on the sample path 13 through an integrating sphere 12. A transmitted light receiving element 14' and a reflected light receiving element 14 receive the transmitted light and reflected light from the sample, respectively. By the reflected quantity from an amplifier 5 and the transmitted quantity from an amplifier 5', an expression (polished degree-reflected quantity+K.transmitted quantity) is computed by an operating element 4, and the result is displayed by an indicator 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to an apparatus for continuously measuring the refined lit of rice grains as grains and soil.

Generally, 11 rice grains are milled in a rice mill to remove the bran and become white.
It is displayed as the milling rate and the whiteness.

In the conventional white discoloration measuring device, a sample plate is placed at the bottom of the yuzu sphere, which is made of a mirror body.
Light that passes through a heat ray absorption filter and a monochromatic light filter and is collected by a condensing lens is irradiated onto the milled rice from the top of the integrating sphere, and the reflected light from the milled rice is placed on the side of the integrating sphere. The light is collected, amplified with an amplifier, and the reflected light is measured, giving it a value of 0.

By the way, there are two types of rice polishing machines: grinding rice milling machines and friction rice milling machines.
Compared to polished rice with increased polishing action, polished rice with increased polishing action of the II[wA rice miller has better transparency and shine. In other words, in a grinding-type rice polishing machine, grinding [1-ru and rice grains are rubbed together to reduce the breast volume,
I! Milled rice has a rough surface with many scratches caused by grinding, whereas C1# type rice milling has a rough surface due to the phase gradient friction of the rice grains. The surface of the milled and polished rice is smooth 1° The conventional self-melon group measures the reflected light from the sample -C white 1!
Therefore, smooth b surface J: A rough surface has more irradiation due to the turbulence of light, and white melons tend to show a high spear. On the other hand, since there is a large amount of light transmitted, the value of 0 was low for small 4 brass. In other words, in the measurement method that uses reflected light as white melon, in the case of polished rice with a smooth surface, I
Transmittance becomes a person! Kome.

It was not possible to measure the exact value.

In order to deal with this, the present inventor has determined that the whiteness can be determined not only by the reflected light of the sample, but also by the transmitted light, and by combining the two to determine the whiteness, an accurate whiteness can be obtained. At the same time, we have provided a continuous M1 grain whiteness measurement III+T which is capable of continuously measuring the whiteness of the flowing grains by providing a sample flow path to make the grains flow.

However, in this continuous grain whiteness measuring device, the sample flow path is stacked vertically, so the direction of the grains flowing through the sample flow path is disordered, and as a result, the reflected light of the sample In some cases, it was not possible to obtain accurate whiteness due to variations in the measured values.

This invention solves the problem of writing by changing the angle of the sample flow path to flow and move grains in the optimal state for measurement.
I have developed a continuous grain whiteness measurement device that allows you to obtain a more accurate whiteness measurement ring! This is what we provide.

Embodiments of the present invention will be described in detail below with reference to the drawings.

It is an integrating sphere with a mirror facing inward as number 12, and a sample flow path 13 is provided on the right side, a condensing lens 10 is provided on the opposite side, and a light source lamp is provided on the left side of the faint lens 10. 7. Heat ray absorption filter 8. A monochromatic light filter 9 is arranged in stages, and light i! The I-instrument is already formed.

11 is located on the 1st floor of the building.

On the opposite side of the sample channel 13 from the optical i1 device, a transmitted light receiving element 14' for capturing transmitted light from the sample is arranged in stages, and the transmitted light receiving element &fl4' is connected to an amplifier 5'. Also, the light IIj! The inwardly directed integrating sphere 12 that crosses the canopy that encloses the device and the transmitted light receiving element 14' has an anti-reflection beam from the sample.
A reflected light receiving element 14 that captures one light beam is connected to the amplifier 5.

A sample supply gutter 16 with a sample inlet 15 is provided at the top of the sample channel 13, and diaphragms 17 are arranged at intervals at the end of the sample channel. ζibrator 1
Connect to 8. Reference numeral 19 indicates an electromagnet (vibrator).By changing the frequency of the vibrator 18, the diaphragm 17
The frequency of the vibration is changed to adjust the flow of grains in the sample flow path 13.

The light 'ftA device adjustment device 13' of the sample flow path 13 is also set at an angle 19 that is greater than the flow angle of the grain and smaller than the vertical. 'l(c
The straw and grains are lined up lengthwise in the direction of travel, slanted at an angle that allows them to flow, and as they move forward, they form a narrow hopper.

It is. In addition, a transmitted light receiving element 14' is provided on the opposite side of the light source device of the sample flow path 13. ing.

Furthermore, the LVI amplifiers 5 and 5' are connected to an arithmetic element 4 serving as a performance frame device, and are further connected to a digital display set 1. In the figure, 2 is an amplification 15', 4 connected transmittance digital tables tr1.3 is a reflectance digital table 1JiBj, 6G, and 11Nf connected to an amplifier 5.

In this way, the integrating sphere 12, the reflected light receiving element 14, and the amplifier 5 form a reflected light measuring device, and the transmitted light receiving element 14' and the amplified Sa! 5' (The transmitted light measurement device is configured.

In the above configuration, the reflection layer from the amplifier 5 and the amplifier 5
It of the rhyme element Ryo 4 calculated by the transmission from ′ and
The s value and the j value are expressed by the following formula.

Whitening 1!1=reflection amount−K/transmission factor, where K is a coefficient (using an experimentally determined numerical value) for converting the transmittance into units of 0 degrees.

As described above, according to the present invention, the polishing degree is expressed as the sum of the light reflection layer and the light transmission, so that the surface is smooth and mli! The degree of polishing of polished rice can also be measured more accurately. Moreover, the sample channel wall is on the light source side e4. The direction of the flowing grains is constant as the L M grains are arranged at an angle in the direction of movement (they are arranged in the longitudinal direction and are inclined at the flow angle!), and the grains flow along the sample channel wall. This makes it possible to obtain more accurate reflected light measurements, and since the sample channel wall on the opposite side of the wall is configured at an angle where the grains are pressed together and flow through without any wIA, it is possible to obtain a more accurate reflected light measurement value. Accurate transmitted light measurements can be obtained. Therefore, it is necessary to clearly and accurately measure the milling marks on flowing grains.

[Brief explanation of drawings]

The drawings are explanatory diagrams showing embodiments of the present invention. 1... Refined digital display 31.2... Transmission II
j' Digital display 81.3...Anti-system digital display fi
, 4... Stem element, 5.5'... Amplifier, 6...
7. Light source lamp, 8. Heat ray absorption filter, 9. Monochromatic light filter, 10.
... Converging lens, 11... Shutter, 12... Integrating sphere, 13... Sample channel, 13'... Light source scissors for sample channel 1Wll! l wall, 13''...Wall on the transmitted light measurement device side of the sample flow path, 14.14'...Photodetector, 15
...Sample input L1.16...Sample supply gutter, 17...
- Vibration plate, 18... vibrator - 119... electromagnet. Patent applicant stock company? l Buddha Bamboo Manufacturer

Claims (1)

[Scope of Claims] A light a1 device, a sample flow path, a reflected light measuring device, and a transmitted light measuring device are configured as 4, and the reflected light measuring device and the transmitted light measuring device are connected to each other through a virtual design. The wall of the light source device side of the test *1 flow path is in a state where the grains are aligned in the direction of movement and in the longitudinal direction [-into the flowing corn gourd,
Further, the continuous grain milling measurement device is characterized in that the wall on the side of the transmitted light measurement device of the sample flow path is configured in a corner shape through which the grains can flow without any gap between the wall and the wall.