JPS6128462A - Controller for rate of removal of gluten - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention is attached to a hulling machine installed in a facility such as a country elevator, and is used to detect the dehulling rate of rice that has fallen from the hulling machine. This invention relates to a demolition rate control device to be used.

"Prior Art" Conventionally, as shown in, for example, Japanese Unexamined Patent Publication No. 59-76585, there has been a device that emits light of a specific constant wavelength.

There was a technology to distinguish brown rice from immature brown rice (green rice) by equipping it with a device that received that light.

"Problems to be Solved by the Invention" With the above-mentioned conventional technology, it was possible to distinguish between brown rice and immature brown rice, but unripe rice (mai) is also mixed in in the unpolished rice that has been removed from the sieve-style selection. In measuring the dehulling rate, immature brown rice was judged as invalid grains along with immature grains, so when there were many immature grains, the accuracy of the dehulling rate control decreased significantly.

However, the present invention is equipped with a sample gutter for extracting grains of fallen rice after separation from the bureau style, and the reflected light of the sample rice to be extracted is passed through the sample gutter while flowing down. In a device that distinguishes brown rice from paddy by detecting it with a photoconductive grain sensor, the grain sensor is equipped with a plurality of light-receiving elements having different reception wavelengths, and the output level and light-receiving time of each of the light-receiving elements are used to distinguish between unhulled rice and paddy. In addition to brown rice, immature paddy and immature brown rice can be distinguished from each other.

``Function'' Therefore, by distinguishing immature paddy and unripe brown rice in the same manner as paddy and brown rice based on the output level and light reception time of a plurality of light receiving elements with different reception wavelengths, it is possible to distinguish unripe paddy and immature brown rice, which were considered invalid grains. The dehulling rate can be calculated by adding brown rice to the paddy and brown rice, and the dehulling rate detection accuracy can be significantly improved compared to the conventional method, and stable dehulling rate control can be achieved even when there is a lot of immaturity due to cold damage etc. It is something that can be done.

``Example'' An example of the present invention will be described in detail below based on the drawings. 1st
The figure is a dehulling rate control circuit diagram, Figure 2 is an overall sectional view of the hulling machine,
Figure 3 is a sectional plan view of the same part, and (1) in the figure is a supply hopper installed at the top of the machine and into which dried paddy is input;
2) is a payout roll installed at the outlet of the hopper (1) to allow a fixed amount of paddy to flow down; (3) is a shutter that varies the amount of paddy fed out by the roll (2); (0 is the shutter (
3) A screw for opening/closing adjustment, (5) (fl) is a pair of dehulling rolls arranged below the feed roll (2) to separate the paddy into brown rice and chaff, (7) is a link (8). A wall removal adjustment member that changes the wall removal pressure (load) of each roll (5) and (8) by moving the variable side wall removal roll (5) supported through the intermediary side into contact with and separating from the fixed side wall removal roll (6). The air cylinder type demolition rate cylinders (8) and (10) are the respective rolls (5) (E
l) A dropping chute provided below to form a mixed rice flow outlet (11), (12) a grain flow board to which the grain flow angle can be freely changed around a support shaft (13) on the sloped upper end side, (14) )
(16) is a winnowing fan that sucks and discharges straw waste such as rice husks that fall from the flow outlet (11) onto the grain flow plate (12) to the outside of the machine via the sorting air passage (15); 12) is a mixed rice take-out gutter that feeds the mixed rice of brown rice and paddy that falls from the grain lifting tube (17), and is configured to continuously take out the mixed rice through the flow grain plate (12). ing.

Further, in the figure, (18) is a reflection plate which is an extraction deceleration part that is installed opposite to the lower end of the sloping grain plate (12) and brings the flowing mixed rice into contact with it, and (19) is a reflection plate of the grain grain plate (12). A sample take-out chute (20) is connected to the center of the lower end of the slope, (20) is the grain plate (12) and the shoe) (19) A sample gutter that receives the mixed rice flowing down the upper surface after it comes into contact with the reflector (18), (2)
1) is a non-glutinous rice sensor which is a photoconductive grain sensor that irradiates the mixed rice falling from the sample gutter (20) with detection light and receives the reflected light to detect the amount of reflected light of the mixed rice;
(22) is a sample take-out gutter that feeds the mixed rice detected by the sensor (21) to the frying barrel (17), and a sample gutter ( 20) is fixedly supported, and the sensor (21) is attached to the bracket (23) in a height-adjustable manner.

Furthermore, it is equipped with a pressure-sensitive type dropped rice sensor (24) such as a piezoelectric element that detects whether or not the dropped rice has fallen sufficiently by contacting the grains flowing down the sample gutter (20), It was detected that the scraped rice was being sent out without interruption from the demolition roll (5) (El), and the said roll (5) (8)
The structure is such that automatic control of the dehulling rate or detection of the dehulling rate by the grain sensor (21) is started.

In addition, the detection gutter (28) equipped with glutinous rice senna (25) was installed 1 m below the previous v present-A4Wv output jiirlR)
k(&s)-mv,' A backing plate (28) facing from below the quantitative flow outlet (27) facing the extraction gutter (16), and this backing plate (2B) fixed to one end. A sensing arm (30) to which a balance way (28) is screwed to the other end, and an operating shaft (
The glutinous rice sensor (25) of one weight measurement type is formed by the potentiometer (32) connected through the potentiometer (31), and the sensing arm (30) is kept approximately horizontal by adjusting the weight (28), The glutinous rice from the gutter (18) is brought into contact with the backing plate (28), the backing plate (28) is lowered in proportion to the amount of chaff in the glutinous rice, and the amount of displacement is measured by the potentiometer (32), It is configured to detect the removal rate of glutinous rice from the take-out gutter (1B).

As shown in Fig. 1, there are paddy and brown rice level setters (33) (34) that initialize the standard reflected light level of paddy and brown rice detected by the non-glutinous rice sensor (21), and standards for normal-grained paddy and brown rice. Paddy and brown rice time setting device (35) (3B) to initialize detection time and non-glutinous rice sensor (21)
) and glutinous rice sensor (25).
B), a manual switch (38) for manually controlling the demolition rate cylinder (7), an automatic switch (40) for automatically controlling the cylinder (7), and a non-glutinous rice sensor (21) output and a glutinous rice sensor (21). It also includes a glutinous rice changeover switch (41) that selectively switches the output of the sensor (25). And the de-sculpture control circuit (4
2), each of the setting devices (33) to (38) and each switch (38) to (41) are connected to the control circuit (42) thereof, and a drive circuit (43) is connected to the control circuit (42). A demolition rate cylinder (7) is connected through the demolition roller, and the cylinder (7) is operated manually or automatically to change the demolition pressure of the demolition roll (5) (e). .

In addition, there are two light receiving elements (44) (45) with different light receiving wavelengths.
) is provided in the non-glutinous rice sensor (21), and an amplifier (4B
) (47) and a valid output comparator (5G) (51) having an invalid level setter (48) (4θ), each light receiving element (44) (45) is connected to the de-wall control circuit (4).
2), the potentiometer (32) of the glutinous rice sensor (25) is also input connected to the scraping control circuit (42) via the amplifier (52), and the scraped rice amount sensor (20) is connected to the scraping rice sensor (20). The input is connected to the cellar control circuit (42), a power supply (54) is applied to each part via the main switch (53), and the outputs of the respective sensors (21, 24, and 25) are sent to the cellar control circuit (42). The system is configured to automatically control the demolition rate cylinder (7) based on the determination.

Further, FIG. 4 is a non-output diagram showing the relationship between the light reception level of the fallen rice and the received light frequency obtained when the fallen rice is irradiated with detection light and the light is received at different wavelengths, When the light reception frequency was 850 OA, the light reception levels of paddy, immature (branch), and immature brown rice (green rice) were similar, and the light reception level of brown rice was detected to be lower than these. Also, the receiving frequency is 8
When there were 700 people, the light reception level of unripe brown rice decreased significantly, and it was found that there were differences in the light reception level between paddy and immature rice, as well as between brown rice and immature rice. Furthermore, as shown in Figure 5, when an average unripe grain and a single grain of paddy pass through the non-glutinous rice sensor (25) at approximately the same speed, the light reception time for detecting the unripe grain is longer than that of the unripe grain. (t 1 < t 2), one of the light receiving elements (44) of the non-glutinous rice sensor (21)
) outputs the light receiving level of 8,500 people whose light receiving frequency center is 8500, and its light receiving element (40) is used for high frequencies with short light receiving wavelengths, while the other light receiving element (45) of the non-glutinous rice sensor (21) outputs the light receiving level of 8500 people whose light receiving frequency center is is 6700
The light receiving element (45) is used to output a light receiving level of λ, and the light receiving element (45) is used for low frequencies with a long light receiving wavelength, and the sample gutter (20
) The light receiving elements (44) and (45) are configured to detect the reflected light and detection time of the sample rice (dried rice) extracted in the sample rice.

The present invention is constructed as described above, and as shown in the flowchart of FIG. 6, when the main switch (53) is turned on and the setting devices (33) to (38) are operated to complete the initial setting. When the automatic switch (40) is off, the manual switch (38) operates and controls the demolition rate cylinder (7), and the demolition pressure of the demolition rolls (5) and (8) is manually adjusted as desired.

Furthermore, when the automatic switch (40) is turned on and the amount of dropped rice detected by the dropped rice amount sensor (24) is more than the setting and is appropriate, the glutinous rice selection switch (41) is turned off and the non-glutinous rice is hulled. When doing so, the output from the non-glutinous rice sensor (21) is inputted to the demolition control circuit (42), and the output from the non-glutinous rice sensor (21) is input to the
21) for high frequency (eSooλ) detection (4
When the output level (I, II, m) of 0 is determined and the output of the light receiving element (44) is brown rice level 1).

The output level (I, II, m) of the light receiving element (45) for low frequency (8700λ) detection is determined, and this light receiving element (45) is determined.
5) When the output is at the brown rice level (II), it is determined that the rice is brown rice.

In addition, when the previous light receiving element (40 output is paddy level (m),
The output level of the subsequent light receiving element (45) (■, ■).

(2), and when the output of this light receiving element (45) is at the brown rice level (II), it is determined that the rice is immature brown rice (green rice).

On the other hand, when the output of the light receiving element (45) is at the paddy level (m), it is determined whether this output time is equal to or longer than the paddy time for detecting normal grains of paddy. If it is less than the paddy time, it is determined to be immature (llt).

Then, the number of detected grains of brown rice, immature brown rice, paddy, and immature samples determined based on the outputs of each light receiving element (44) (45) is calculated, and the dehulling rate of non-glutinous rice is calculated.

The dehulling rate is compared with the standard value of the dehulling rate of non-glutinous rice, and when the dehulling rate is high, the dehulling pressure of the dehulling rolls (5) and (6) is lowered by controlling the dehulling rate cylinder (7), while When the demolition rate is low, the demolition pressure of the demolition rolls (5) and (8) is increased by controlling the cylinder (7), and when the demolition change is completed, the demolition rate is the standard. When the values match and are appropriate, the time (T seconds) for the dropped rice to move from the removal roll (5) (13) to the non-glutinous rice sensor (21)
After waiting for the above period, the above-mentioned deburring control circuit is repeated.

Furthermore, when husking glutinous rice, use the glutinous rice selector switch (41).
), the output from the potentiometer (32) of the glutinous rice sensor (25) is switched on to the de-wall removal control circuit (
Step 42) - Manually compare the glutinous rice removal rate detected by the sensor (25) with the glutinous rice removal rate reference value, and operate and control the removal rate cylinder (7) in the same manner as above. When the hole removal rate is high, the hole removal pressure of the hole removal rolls (5) and (8) is decreased, while when the hole removal rate is low, the hole removal pressure of the hole removal rolls (5) and (e) is increased. When the change for demolition is completed, and when the demolition rate matches the standard value and is appropriate, the glutinous rice sensor (25) is transferred from the demolition roll (5) (6) to the glutinous rice sensor (25).
After waiting for at least the time (T seconds) for the fallen rice to move, the above-mentioned de-mulling control circuit is repeated. Therefore, when the glutinous rice sensor (21) detected glutinous rice paddy and brown rice, the difference in the reflected light level was small, so it was not possible to properly detect the dehulling rate of glutinous rice.
By detecting the weight of the glutinous rice (25), it is possible to accurately calculate the de-hulling rate of glutinous rice (1). Any dehulling rate of glutinous rice can be appropriately adjusted by automatic control.

"Effects of the Invention" As is clear from the above embodiments, the present invention includes a sample gutter (20) for extracting grains of fallen rice after deban wind selection, and the sample gutter (20) In a device that detects the reflected light of sample rice while it is flowing down with a photoconductive grain sensor such as non-glutinous rice senna (21) to distinguish brown rice from paddy, a plurality of light receiving elements (44) (45) with different light receiving wavelengths are used.
is provided in the grain sensor (21), and each of the light receiving elements (4
4) It is configured to be able to distinguish between paddy and brown rice, as well as immature cotton and immature brown rice, depending on the output level and light reception time of (45).
4) By distinguishing immature cotton and immature brown rice in the same way as paddy and brown rice based on the output level and light reception time in (45), immature cotton and immature brown rice, which were considered invalid grains, can be added to paddy and brown rice. It is possible to calculate the de-mulling rate, significantly improving the accuracy of de-mulling vehicle inspection compared to the conventional method, and it is possible to obtain stable de-mulling rate control when there is a lot of immature cotton due to cold damage etc. It is something that plays.

[Brief explanation of drawings]

Fig. 1 is a block removal control circuit diagram showing one embodiment of the present invention;
The figure is a cross-sectional view of the rice huller, and Figure 3 is a partial plan view of it, I/4
Fig. 4 is a non-glutinous output diagram, Fig. 5 is a non-glutinous rice sensor output diagram for cloudy rice, and Fig. 6 is a flowchart for controlling the dehulling rate. (20)... Sample gutter (21)... Non-glutinous rice sensor (photoconductive grain sensor)
(44) (45)...Light receiving element agent Tadaharu Fujiwara 2 Kyotai] Kyousai 4 Kuji 5 Kuchisei Sensei'a→

Claims (1)

[Claims] Equipped with a sample gutter that extracts the fallen rice grain by grain after wind selection, the reflected light of the sample rice extracted in the sample gutter is detected by a photoconductive grain sensor while flowing down, and it is separated into brown rice and paddy. The grain sensor is equipped with a plurality of light-receiving elements having different reception wavelengths, and it is possible to distinguish between paddy and brown rice, as well as unripe paddy and immature brown rice, by the output level and light-receiving time of each light-receiving element. A withdrawal rate control device characterized by comprising: