JPH09257712A - Apparatus for judging quality of grain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To confirm the content of measuring work and to enhance the reliability thereof by returning all of sample grain after measurement by a measuring mode to a predetermined sorting sample box without returning the same to a residual sample receiving box. SOLUTION: Control is performed so that all of sample grain after measurement by a measuring mode used when sample grain is measured is returned to a predetermined sorting sample box 227 other than a residual sample receiving box 228 without being returned to the box 228. That is, sample grain after measurement is wholly returned to either one of a sorting sample box 227-1 for good quality grain, a sorting sample box 227-2 for immature grain, a sorting sample box 227-3 for injured grain, a sorting sample box 227-4 for dead grain and a sorting sample box 227-5 for colored grain. By this constitution, both of a measured result and mesured grain can be kept and, when content is again confirmed later, the content of measuring work can be confirmed on the basis of both of the measured result and the measured grain and the reliability of the work is enhanced. Further, this can be dealed with only by the alteration of a program.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain quality judgment apparatus, and in particular, after measurement in a measurement mode when measuring a sample grain, the sample grain after measurement is not returned to a residual sample receiving box, Return all to the specified sample box other than the box so that both the measurement result and the measured grain can be stored, and when reconfirming the content at a later date, the measurement work will be performed using both the measurement result and the measured grain. The present invention relates to a grain quality determination device capable of confirming the contents of

[0002]

2. Description of the Related Art As a measure for judging the quality of grain, there are conventional methods, for example, Japanese Patent Laid-Open Nos.
There are those disclosed in Japanese Patent Application Laid-Open No. 7-153249, Japanese Patent Application Laid-Open No. 62-15014, and the like. The inventions disclosed in these publications irradiate each grain of brown rice with light to detect transmitted light, reflected light, and the like, and determine good quality grains, defective grains, split barrel grains, and the like based on the detected value. Is.

Regarding the grain quality judgment, there is one disclosed in Japanese Patent Publication No. 3-60382. The method for determining the quality of brown rice disclosed in this publication describes a method for determining the mixing ratio and rank of each quality classification and enabling the rating of the measurement sample brown rice.

As a conventional grain quality determination device, there is one shown in FIGS. 3 and 4, for example. In FIGS. 3 and 4, reference numeral 1 is a determination mechanism unit of a grain quality determination apparatus, 2
Is a rotating disk, and 3 is a detector.

The detection unit 3 is composed of, for example, a transflective head 4 for detecting the amount of transmitted light of two wavelengths and a barrel split head 5 for detecting the amount of transmitted light in the longitudinal direction of grain.

[0006] The rotating disc 2 is for transferring grains one by one to the detection unit 3, has a plurality of sampling holes 7 at equal intervals in the circumferential direction of the outer peripheral edge 6, and is driven by a motor 9. Arrow a
It is supported so that it can rotate in any direction. The rotating disc 2 is provided so as to be inclined by an angle θ as shown in FIG.

On the lower surface of the rotating disc 2, there is provided an annular sample receiving plate 11 which prevents the sample grains 8 fitted into the sample collecting hole 7 and transferred from dropping downward. Rotating disk 2
In the inclined direction of, the wall body 12 is arranged along the outer peripheral edge 6,
A sample supply unit 14 for storing the sample grain 8 is formed between the wall 12 and the lower slope 2-1 of the rotary disc 2.

The sample grains 8 stored in the sample supply unit 14 are fitted into the sample collection holes 7 one by one as the rotating disc 2 rotates, and are prevented from falling by the sample receiving plate 14 and are in the direction of arrow a. Be transferred to.

The detecting section 3 irradiates a light beam to each of the transferred sample grains and detects the amount of transmitted and reflected light. Then, the detected value detected is input to a separately provided determination control unit and becomes data for determining the quality rank of, for example, sized particles, immature particles, damaged particles, colored particles, and the like.

The sample grain 8 after detection is directed toward the lower surface of the sample receiving plate 11 from a discharge port (not shown) opened in a part of the sample receiving plate 11 in the process of transferring to the sample supply section 14. It was discharged to the discharge path 13 provided in the.

However, in order to confirm the performance of the grain quality determination device, it has been requested by the user side to provide a sorting mechanism for sorting and storing each sample grain according to the determination result according to the quality rank.

For this reason, it is considered to install a sorting mechanism for sorting the sample grains 8 once discharged to the discharge path 13 provided on the lower surface of the sample receiving plate 11 according to the discharge rank in the middle of the discharge path 13. Was given.

However, in this case, it is necessary to additionally install the sorting mechanism in the space below the rotating disk of the determination mechanism section.
For this reason, the overall height of the determination mechanism has tended to increase and increase in size. Further, when setting multiple quality ranks to be judged, a shutter for branching the discharge path at multiple points and switching each branched path is provided, and this shutter is synchronized with the timing when the judgment control unit determines the quality rank. Therefore, there is a problem that the structure of the sorting mechanism, the drive control, and the like are complicated as a result.

Further, with such a complicated structure, there is a disadvantage that the determination process also takes time.

[0015]

In order to solve the above-mentioned problems, there is a system provided with a sorting mechanism for sorting and storing each sample grain according to the determination result according to quality rank (Actual exploitation 63). -103784).

FIG. 5 shows an optical quality determination device for grains, for example, rice grains, which comprises a control section 15 and a determination mechanism section 1 which are separately formed. The control unit 15 and the determination mechanism unit 1 are connected by the signal line 17 and the power line 18.

Further, on the operation surface 19 of the control unit 15,
Liquid crystal display (LCD) that digitally displays quality judgment results
20, a particle number display section 21 for displaying the number of particles of the sample, a power switch 22 and a measurement mode selection switch 23, and a rating display section 24 for rating and displaying the quality rank of the sample.
And a key input unit 25 for inputting various measurement commands by key operation. Furthermore, the upper surface 15- of the control unit 15-
1 is provided with a printer 26 that outputs the determination result.

Further, the determination mechanism section 1 includes a sample grain 8
A sample input port 16 for inputting the sample, a selected sample box 27 for storing the selected samples according to quality ranks, and a residual sample receiving box 28 for receiving the separately discharged unmeasured sample are provided.

FIG. 6 is a block diagram of the judgment control unit 29 built in the control unit 15.

The judgment control unit 29 includes a microcomputer (CPU) 30 and an interface (I / F board) 31 as the main components of the printer 26 and the keyboard 2.
5. Connect the LCD 20 respectively.

Further, the I / F board 31 is connected with a sorting drive unit 33, a conveyance drive unit 34, a timing detection unit 35 and a peak hold circuit 36 via an input / output unit 32, and the peak hold circuit 36 is spectroscopically connected. Part 37 and I
The A / D return unit 38 connected to the / F board 31 is connected.

The determination mechanism section 1 includes a light source 39, a solenoid valve 40 connected to the sorting drive section 33, a motor 9 connected to the transport drive section 44, a timing sensor 41 connected to the timing detection section 35, and Light source 39
And a transmission / reflection head 4 connected to the peak hold circuit 36, and a barrel split head 5 also connected to the peak hold circuit 36.

Further, FIGS. 7 to 9 show a sorting mechanism built in the judging mechanism unit 1, and the portions having the same functions as those shown in FIGS. 3 and 4 are designated by the same reference numerals. And the description is omitted.

First, reference numeral 42 is a timing hole for detecting the rotational position of the rotary disc 2 by the timing sensor 41, and as shown in FIG. The same number of sampling holes 7 are provided at equal intervals (= equal angles) in the circumferential direction so as to correspond to the respective sampling holes 7.

Reference numeral 43 is a fixing plate that supports the sample receiving plate 11 and fixes the transmission / reflection head 4, the split head 5, the timing sensor 41, etc. with high accuracy.

Reference numeral 44 is a selection guide body installed close to the upper surfaces of the sampling holes 7 located at the outer peripheral edge of the rotary disc 2 at the A, B, C, D and E positions. , C,
Sample receiving ports 45-1, 4 opened corresponding to the D and E positions
5-2, 45-3, 45-4, 45-5 and selection guide passages 46-1, 46-2, which are independently connected to these, respectively.
46-3, 46-4, 46-5 and outlets 47-1, 47
-2, 47-3, 47-4, 47-5.

Reference numeral 48 is a discharge passage which is opened in the fixed plate 43 at a position corresponding to each discharge port 47.

Reference numeral 49 is a notch formed by concavely cutting the lower surface of each sample receiving port 45 along the transfer path of the sample grain 8 so that the sample grain 8 and the lower surface of each sample receiving port 45 do not come into contact with each other. It is for.

Reference numeral 50 is an air ejection port independently opened in the fixing plate 43 and the sample receiving plate 11 corresponding to the A, B, C, D, and E positions, and the air ejection ports 50-1 and 50 are provided. -2,
50-3, 50-4, 50-5 are corresponding solenoid valves (SOL) 40-1, 40-2, 40-3, 40-.
Pipe connection to the air source 51 via 4, 40-5 (not shown).

Therefore, each solenoid valve 40 is turned on.
-By controlling OFF, the air discharge port 50-
It is possible to independently discharge a predetermined amount of air to 1, 50-2, 50-3, 50-4, 50-5.

Due to the discharge of the air, the sample grain 8 fitted in the sample collecting hole 7 of the rotary disk 2 is blown off to the sample receiving port 45 and discharged, and further, the sorting guide passage 46, the discharging port 47, and the discharging passage 48. , The discharge pipe 52 is provided, and the sorted sample boxes 27 are sorted and housed in the sorted sample boxes 27.

As described above, an air sorting mechanism for sorting the sample grains by quality rank is formed mainly by the sorting guide body 44.

Next, for reference, the operation will be described with reference to the flow chart for quality judgment of FIG. 10 and the timing chart of the air selection mechanism of FIG.

First, the sample grain 8 is supplied from the sample input port 16 of the determination mechanism section 1 of the grain quality determination device, and after the number of grains to be measured and the measurement mode are input by the keyboard 25, a measurement start command is input. Then, the determination control circuit 29 that has received the measurement start command starts (100) the measurement program stored in the memory of the CPU 30.

Next, the CPU 30 determines whether the "measurement mode" is YES in which the samples to be measured are sorted by quality rank according to the input measurement mode, or the "measurement mode" is NO in which only the quality rank is determined and no sorting is performed (101). To do.

In the case of "measurement mode" in this judgment (101), the number of rotations of the motor 9 is set to high speed rotation (102), and the subsequent judgment is processed at high speed.

In the case of the "selection mode" in the judgment (101) or after the high speed rotation processing (102), the CPU 3
In 0, the measurement data of each sample grain that passes through the detection unit 3 is sequentially input from the A / D conversion unit 38 (103).

Next, the measurement data input at (103) is compared with the judgment level preset in the memory,
The quality rank of each sample grain is sequentially determined (10
4) Yes.

For example, when the sample territory is brown rice and the quality is determined to be 5 classifications, sizing is quality rank 1, immature grain is quality rank 2, damaged grain is quality rank 3, colored grain is quality rank 4, The split grains are ranked as quality rank 5, respectively.

Next, similarly to (101), it is judged whether or not the selection mode is selected (105). If the result is YES, the sample grain transferred to the selection guide body 44 by the rotating disc 2 is subjected to the above ( 104) and select according to the quality rank. That is, as shown in FIG.
A program counter for updating and counting the position of the sample grain 8 on the rotary disk 2 after determining the predetermined quality rank by the timing pulse (Tn) sequentially input from the timing detection unit 35 is provided. ,
A, B, C of the rotating disk 2 corresponding to 2, 3, 4, 5
When the sample grain is transferred to the positions D and E (selection position), the solenoid valves 40-1 corresponding to the respective selection positions,
40-2, 40-3, 40-4 and 40-5 are turned on for a predetermined time.

When the solenoid valve 40 is turned on, a predetermined pressure and quantity of air is discharged from the air discharge port 50, and at this time, the sample of each selection guide body 44 corresponding to the sample collection hole 7 of the rotary disc 2 is sampled. It is discharged toward the receiving port 45.
The discharged sample grains 8 are collected in the respective sorting guide passages 46,
Via the outlet 47, the outlet 48 and the outlet pipe 52,
It is sorted and stored in each sorted sample box 27 provided for each quality rank.

Next, as in the case of NO in (105), it is judged whether or not a predetermined number of measurement particles has been measured (107).
If NO, the process returns to (103) again, and YES
In the case of, the measurement result is output by the printer 26 (10
8) and ends the measurement operation (109).

That is, in the conventional grain quality judging device, all the sample grains judged according to the grain classification are returned to the residual sample receiving box in the measurement mode (FIG. 1).
2). This is because the post-treatment of the sample grain is facilitated from the idea that only the measurement results need to be known.

However, the user of the grain quality judgment apparatus needs to store the grain actually measured together with the result, and the improvement is expected.

[0045]

In order to eliminate the above-mentioned factors, the present invention is carried by a rotating disk having a plurality of sample-collecting holes at equal intervals in the circumferential direction of the outer peripheral edge and the sample-collecting holes. A detection unit that irradiates a light ray for each grain of the sample grain and detects the amount of transmitted and reflected light, and a determination control that determines the quality rank of the sample grain by comparing the detection signal input from the detection unit with a predetermined value. Section, and based on the quality rank signal from the determination control unit at a predetermined position on the outer peripheral edge in the front of the rotating disk from the detection unit, sample grain is discharged above the sampling hole and classified by quality rank. An air sorting mechanism including an air source for sorting, a solenoid valve, and a sorting guide body having a sorting guide passage corresponding to the quality rank number; and the rotating disk for sending an air discharge timing signal to the air sorting mechanism. The times In a grain quality determination device having a timing detection unit for detecting a position and a sorting sample box that stores sample grains sorted by the air sorting mechanism for each quality rank, after measurement in a measurement mode when measuring sample grains The judgment control unit is additionally provided with a function of controlling to return all the sample grains to a predetermined selected sample box other than the residual sample receiving box without returning to the residual sample receiving box.

[0046]

BEST MODE FOR CARRYING OUT THE INVENTION
After the measurement in the measurement mode when measuring the sample grain,
The judgment control unit controls to return all sample grains after measurement to the predetermined sample box other than the residual sample receiving box without returning to the residual sample receiving box, and stores both the measurement result and the measured grain. If the contents can be reconfirmed at a later date, the contents of the measurement work can be confirmed by both the measurement result and the measured grain, which contributes to the improvement of the work reliability.

[0047]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

1 and 2 show an embodiment of the present invention.

In the embodiment of the present invention, the structure of the grain quality judging device is the same as that shown in FIGS.

A function of controlling so that all sample grains after measurement in the measurement mode when measuring sample grains are returned to the predetermined sample box 227 other than the residual sample receiving box 228 without returning to the residual sample receiving box 228. It has a configuration additionally provided to the determination control unit (not shown).

More specifically, in the embodiment of the present invention,
Only the program of the judgment control unit is changed, and the sample grain after the measurement in the measurement mode when measuring the sample grain is not returned to the residual sample receiving box 228, but a predetermined selection sample box 227, that is, for good grain Sorted sample box 227
-1, the sample sample box 227-2 for immature grain, the sample box 227-3 for damaged grain, the sample box 227-4 for dead rice, and the sample sample box 227-5 for colored grain, for example, good quality grain All of them are returned to the good quality grain selection sample box 227-1.

That is, when the measurement mode is selected, a judgment is made for each grain according to a predetermined classification, and the ratio of each classification is obtained from this judgment result, and the rating is made according to the degree.

Then, each grain is not divided into the sorted sample boxes according to the judgment, but is returned to the sorted sample box 227-1 for good quality particles, which is different from the residual sample receiving box 228.

Further, when the above operation is carried out, when the measurement mode is selected, the selection signal is forcibly output to the selection mechanism (not shown) as a value corresponding to the selection sample box 227-1 for good quality grains. To do.

Next, the operation will be described with reference to the control flowchart of FIG.

When the program of the judgment control unit is started (300), initial values such as measurement mode and judgment level are set (302), and measurement is started, that is, it is judged whether the measurement mode is selected (304). I do.

If the determination (304) is NO, the determination is repeated until the determination (304) is YES, and if the determination (304) is YES, the measurement is performed (306).

After this measurement (306), a judgment (308) as to whether or not to select is made. If the judgment (308) is YES, the selection according to the mode is made (310).

Selection processing (310) according to this mode
As shown in FIG. 2, in the measurement mode, the measured sample grain is returned to the good quality grain selection sample box 227-1, and the others are returned to the residual sample receiving box 228.

In the case of the selection 2 mode, the selected sample grains are returned to the selection sample box 227-1 for high quality grains and the selection sample box 227-2 for immature grains, and the other samples are retained for the residual sample. Return to box 228.

Furthermore, in the case of the selection 5 mode, the selected sample grains are selected from the sample grain box 227-1 for good quality grains, the sample sample box 227-2 for immature grains, the sample sample box 227-3 for damaged grains and dead rice. Sorting sample box 227-4 and sorting sample box 22 for colored particles
7-5 respectively, and the other ones are the residual sample receiving box 2
Return to 28.

Then, after the selection processing (310) according to the above-mentioned mode, the process shifts to a judgment (312) as to whether or not to terminate this program, and a judgment (308) as to whether or not the above-mentioned selection is made. Even in the case of NO, the process proceeds to the determination (312) of whether or not to terminate the program. If the determination (312) is NO, that is, if the program is not terminated, the process returns to the above-described measurement (306) and the determination (312) is performed. )
If YES, the program ends (314).

As a result, in the measurement mode, the measured sample grains are not returned to the residual sample receiving box 228, but all are transferred to a predetermined selection sample box 227, for example, a selection sample box 227-1 for returning good quality grains. It will be returned and both the measurement result and the measured grain can be stored, and if the content is reconfirmed at a later date, the content of the measurement work will be confirmed by both the measurement result and the measured grain. It is possible to contribute to the improvement of work reliability.

Further, since it can be dealt with only by changing the program of the judgment control unit, there is no fear that the structure will be complicated, the manufacture is easy, the cost can be maintained at a low cost, and it is economical. It is advantageous.

The present invention is not limited to the above embodiment, but various application changes are possible.

For example, in the embodiment of the present invention, the sample grain after measurement in the measurement mode is returned to the good quality grain selection sample box without returning to the residual sample receiving box. It is possible to return to a selection sample box for immature grains, a selection sample box for damaged grains, a selection sample box for dead rice, and a selection sample box for colored particles other than the selection sample box for grain.

[0067]

As described in detail above, according to the present invention, a rotating disk having a plurality of sampling holes at equal intervals in the circumferential direction of the outer peripheral edge and a sample grain transferred by the sampling holes are provided. A detection unit that irradiates each grain with a light beam and detects the amount of transmitted and reflected light, a judgment control unit that compares the detection signal input from the detection unit with a predetermined value to determine the quality rank of the sample grain, and a rotation from the detection unit An air source and solenoid valve for ejecting sample grains above the sampling hole and sorting by quality rank based on the quality rank signal from the judgment control unit at a predetermined position on the outer peripheral edge in the front direction of rotation of the disc. And an air sorting mechanism including a sorting guide body having a sorting guide passage corresponding to the number of quality ranks, a timing detection unit that detects a rotational position of a rotating disc to send a timing signal of air discharge to the air sorting mechanism, and an air sorting mechanism. Election In a grain quality determination device that has a sorted sample box that stores sample grains sorted by the mechanism according to quality rank, without returning the sample grain after measurement in the measurement mode when measuring the sample grain to the residual sample receiving box Since a function was added to the judgment control unit to control to return all to the selected sample box other than the residual sample receiving box, in the measurement mode, the measured sample grain is not returned to the residual sample receiving box, All will be returned to the predetermined sample box,
Both the measurement result and the measured grain can be stored, and in the case of reconfirming the content at a later date, the content of the measurement work can be confirmed by both the measurement result and the measured grain, This can contribute to the improvement of work reliability. Further, since it is possible to deal with it only by changing the program of the determination control unit, there is no fear that the configuration will be complicated, manufacturing is easy, cost can be kept low, and it is economically advantageous. ..

[Brief description of drawings]

FIG. 1 is a flow chart for control of a grain quality determination device showing an embodiment of the present invention.

FIG. 2 is a schematic diagram showing a flow of a sample grain after measurement in a predetermined selection sample box and a residual sample receiving box in each of measurement, selection 2 and selection 5 modes.

FIG. 3 is a schematic view of the inside of a determination mechanism portion taken along the arrow 〓 of FIG. 4 showing the prior art of the present invention.

FIG. 4 is a side view of the inside of the determination mechanism section.

FIG. 5 is a perspective view of a control unit and a determination mechanism unit of the grain quality determination device.

FIG. 6 is a block diagram of a determination control unit incorporated in the control unit.

7 is a schematic enlarged view of a sorting mechanism incorporated in the determination mechanism section as viewed from the arrow 〓 in FIG.

FIG. 8 is an explanatory diagram showing a positional relationship between a sorting guide body and a rotating disc.

FIG. 9 is a cross-sectional view taken along line 〓X-〓X in FIG. 7;

FIG. 10 is a flowchart for measurement selection.

FIG. 11 is an operation timing chart of the air sorting mechanism.

FIG. 12 is a schematic view showing a flow of sample grains after measurement in a predetermined selection sample box and a residual sample receiving box in each of measurement, selection 2 and selection 5 modes.

[Explanation of symbols]

 227 Predetermined selection sample box 227-1 Good quality grain selection sample box 227-2 Immature grain selection sample box 227-3 Damaged grain selection sample box 227-4 Dead rice selection sample box 227-5 Colored grain selection sample Box 228 Residual sample receiving box

Claims (1)

[Claims] 1. A rotating disk having a plurality of sampling holes at equal intervals in a circumferential direction of an outer peripheral edge, and a light beam is radiated for each grain of the sample grain transferred by the sampling hole to transmit and reflect the amount thereof. And a detection control unit that determines the quality rank of the sample grain by comparing the detection signal input from the detection unit with a predetermined value, and a detection control unit that detects the quality rank of the sample grain from the detection unit. Corresponding to the air source, solenoid valve, and the number of quality ranks for discharging sample grains above the sampling hole and sorting by quality rank based on the quality rank signal from the judgment control unit at a predetermined position on the periphery An air sorting mechanism including a sorting guide body having a sorting guide passage, a timing detection unit that detects a rotational position of the rotating disk for sending an air discharge timing signal to the air sorting mechanism, and the air sorting mechanism. In a grain quality determination device having a sorted sample box that stores sample grains sorted by quality rank, the sample grain after measurement in the measurement mode when measuring the sample grain remains without returning to the residual sample receiving box. A grain quality judging device characterized in that a function of controlling to return all to a predetermined selection sample box other than the sample receiving box is provided in addition to the judgment control section.