JPH074556Y2 - Brown rice quality judgment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a sample separation mechanism in an apparatus for optically determining and separating the quality of brown rice for each grain.

[Problems to be Solved by Prior Art and Invention] The basic configuration of a conventional brown rice quality judging device will be described with reference to FIGS. 1, 2, and 3.

In the figure, reference numeral 1 is a determination mechanism portion of a brown rice quality determination device, 2 is a rotating disk inclined at an angle (θ), and 3 is a detection portion. The detection unit 3 includes, for example, an RGB head 4 that detects the amount of transmitted / reflected light of four wavelengths and a licensor head 5 that detects the amount of transmitted light in the long axis direction of brown rice. Rotating disk 2
Is for transferring the brown rice to the detection unit 3 one by one, and has the sampling holes 7 for receiving one brown rice grain at the outer periphery thereof at equal intervals and continuously. 6
And is configured to be rotatable in the arrow direction (clockwise in this example). Further, a fixed block 11 is provided on the lower surface of the rotary disc 2 to prevent the sample brown rice 8 transferred by the sample collection hole 7 from dropping downward. As shown in FIG. 2, the rotary disc 2 is tilted by a predetermined angle (θ), and a peripheral wall body 12 is disposed along the outer peripheral portion below the tilt, and below the peripheral wall body 12 and the rotary disc 2. A sample supply part (13) for collecting sample brown rice is formed between the sample and the slope. For example, the number of inspection particles is 10
If the number of grains is 00, first, the grain number setting mechanism configured in the setting control unit (not shown) is set to 1000 grains, and the sample supply unit is set.
An appropriate amount of 1000 or more grains of brown rice stored in 13 is picked up one by one as the rotating disc 2 rotates and enters the sample collection hole 7 and is fed sequentially in the clockwise direction. Is stabilized and then sent to the detection unit 3. The detection unit 3 irradiates a light beam for each grain of the sample brown rice that is transferred, and detects it as an electro-optical signal. Then, based on the detection signal, it is input to a judgment control unit (not shown), and the brown rice of the measurement lot is counted for each grain type according to the type of grain size control and defective grain size calculation, and at the same time the ratio of the grain size control ratio is calculated. This is the data for separating each quality. As for the quality of brown rice, in addition to sizing, defective grains include split grains, immature grains, and colored grains.

14A, 14B, 14C, 14D and 14E are air ejection nozzles for sample selection, which are located below the fixed block 11 on the lower surface of the outer peripheral portion of the rotary disc 2. Reference numeral 15 is a sample separation guide body installed close to the upper surface of the relevant part, and actually each discharge nozzle 14A, 14B, 14C,
Sample separation guides 15A, 15B, 1 corresponding to 14D, 14E
Equipped with 5C, 15D, 15E.

The sample brown rice 8 for each grain is based on the data in the detection unit, for example, sized grain (A), split grain (B), immature grain (C), colored grain (D) and other defective grain (E). It is separated in such a manner that it is stored in a sample receiver provided for each quality.

By the way, in the conventional quality evaluation device for brown rice as described above, as shown in FIG. 3, the intervals d1 between the sample collection holes 7 provided on the outer peripheral portion of the rotary disc 2 and the air ejection nozzles for sample selection. The intervals d2 between 14A, 14B, 14C, 14D and 14E were set to be the same. Therefore, as an extreme example, the discharge nozzle 14
It is sent at the timing that it enters into the state such as crushed grains contained in other defective grains at the position of E, colored grains at the position of 14D, immature grains at the position of 14C, split grains at the position of 14B, and sized grains at the position of 14A. However, in some cases, a plurality of nozzles (five in this example) need to eject air at the same time, and in order to secure the required air flow rate in each nozzle, a large-capacity air pressure source is required. There was a problem that it was necessary to use or to install an air buffer.

[Means for Solving Problems] Therefore, according to the present invention, by setting the interval between the sampling holes and the interval between the sample selection air ejection nozzles differently,
It is an object of the present invention to provide a device capable of minimizing the capacity of an air pressure source and at the same time eliminating the need for an air buffer.

[Example] An example of the sample separation mechanism according to the present invention will be described with reference to FIG. Since the basic structure of the determination mechanism section, the detection section and other devices is the same as in FIGS. 1 and 2, the drawings and the description thereof have been given for the prior art and will not be repeated here. Fourth showing the sample separation guide body portion corresponding to FIG.
The features of the present invention will be described with reference to the drawings.

In FIG. 4, the distance d1 between the sampling holes 7 is 10 mm, and the distance d2 between the air discharge nozzles 14A, 14B, 14C, 14D and 14E is 13 mm.
Then, even if sizing and defective particles are sent at the timing as described above, the discharge nozzle 14A corresponding to sizing is the first to operate, and immediately after that, 14B is activated to cause the splitting of the barrel. After being discharged, 14C and thereafter are sequentially operated, and there is no case where air is simultaneously discharged from a plurality of nozzles, and the capacity of the pneumatic pressure source can be minimized. Similarly, the distance d1 between the sampling holes 7 is 10 mm, and the distance d2 between the air discharge nozzles 14A, 14B, 14C, 14D and 14E is 7 mm,
If the size relationship between the distance d1 and the distance d2 is reversed,
Air to discharge is from discharge nozzles 14E to 14D, 14C, 1
4B and 14A will be operated in sequence, and again multiple nozzles will not discharge air at the same time.

In this way, the distance between the sampling holes 7 and the air discharge nozzle 14
By changing the spacing between A, 14B, 14C, 14D and 14E,
It is possible to configure the device with the minimum necessary air pressure source without providing an air buffer.

In FIG. 1, reference numeral 18 is a discharge hole for forcibly discharging the sample brown rice 8 remaining and sent in the sample collection hole after the measurement, and the fixed block 11 in this portion is cut out. A discharge nozzle 19 is provided so as to discharge air toward the discharge hole to facilitate discharge. A similar effect can be obtained by a suction action instead of air discharge.

[Brief description of drawings]

FIG. 1 is a plan view showing the basic configuration of a brown rice quality judging device,
2 is a side sectional view of the apparatus of FIG. 1, FIG. 3 is an explanatory view showing the positional relationship between a conventional sample selection air discharge nozzle, a sample separation guide body and a rotating disk, and FIG. FIG. 4 is an explanatory view equivalent to FIG. 3 according to the present invention. 1 ... Judgment mechanism part, 2 ... Rotating disk, 3 ... Detection part, 4
...... RGB head, 5 licensor head, 6 motor, 7 sampling hole, 8 brown rice, 9 hub,
10 …… Sizing powder, 11 …… Fixed block, 12 …… Surrounding wall, 13 …… Sample supply unit, 14A, 14B, 14C, 14D, 14E …… Air jet nozzle for sample selection, 15 …… Sample separation guide Body, 18
…… Discharge hole, 19 …… Discharge nozzle, d1 …… Sampling hole spacing, d2 …… Sampling air ejection nozzle spacing.

Claims (1)

[Scope of utility model registration request] 1. A brown rice transfer device in which a large number of holes each of which receives one brown rice are arranged on a rotating disk axially supported on an inclined fixed block, and pneumatic pressure is used for separating the sample brown rice. In the quality judging device for brown rice, the quality judging device for brown rice is characterized in that the distance between the holes for receiving the brown rice on the rotating disk and the distance between the nozzles at the separating portion are made different.