JPH035853B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hulling and sorting machine having a husking device, a swinging sorting device, etc., and more particularly relates to a sampling device for grains sorted on a grain selection plate in the swinging sorting device. .

Conventionally, in this type of oscillating sorting device, the amount of grains such as brown rice and paddy that are sorted and flowed down on the grain selection plate is controlled by a limit switch installed near each grain selection plate. Since it was designed to detect the height of the upper grain layer using two values, high and low, it could only detect whether the amount of each grain flowing down the grain selection plate was higher or lower than a certain reference value. Therefore, the grain amount detection means described above cannot detect the exact amount of brown rice, paddy, etc., or even the shedding rate, and the detection signal is used to automatically control each process of the hulling and sorting machine. In this case, there was a drawback that fine control could not be performed.

Therefore, the present invention provides two partition plates at the lower end of the grain flow of the grain sorting plate of the oscillating sorting device so as to separate the grains sorted into brown rice, mixed rice, and paddy and transfer them to the next process. A grain sampling cylinder is provided in each compartment divided by the partition plate and corresponding to the grain flow lower end of the grain selection plate, and the sampled grains are guided to a detector, and the brown rice is The sampling tube for sampling the paddy and the sampling port of the sampling tube for sampling the paddy are arranged so that they are not affected by the side plate of the grain selection plate.
The method is arranged at a predetermined distance from the side plate, and detects the flow rate of grains on the grain selection plate based on sampling of the portion having a constant layer thickness, and the flow rate of grains on the grain selection plate is detected. The object of the present invention is to provide a grain selection plate grain sampling device for a hulling and sorting machine that is capable of sampling grain quantities that are accurately proportional to the respective flow rates of flowing brown rice, mixed rice, and paddy. .

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

As shown in FIGS. 1 and 2, the hulling and sorting machine 1 includes a husking device 2, a grain lifting device 3, and a swinging sorting device 5. The chucking device 2 is composed of a chucking hopper 6, a supply amount adjustment valve 7, a chucking roll 9 consisting of a pair of rubber rolls 9a and 9b, a dust exhaust fan 10, etc., and supplies the dust into the chucking hopper 6. The processed paddy B flows down between rubber rolls 9a and 9b which are driven to rotate at a flow rate set by the supply amount control valve 7, where it is slid out and turned into brown rice, brown rice, etc.
Fu, shina and paddy flow down as mixed grains,
Unwanted C is blown and separated by a dust exhaust fan 10. In addition, the grain frying device 3
consists of a bucket conveyor in which a brown rice bucket row 11 and a mixed rice bucket row 12 are arranged side by side.The brown rice bucket row 11 receives brown rice A from the brown rice shooter 13, transfers it upward, guides it to the brown rice outlet 15, and mixes it. The rice bucket row 12 receives mixed rice AB from a screw conveyor 16 for transporting mixed rice, transports it upward, guides it to a supply gutter 17, and supplies the mixed rice to a swing sorting device 5, which will be described later.

The oscillating sorting device 5 includes an equalizing tank 19 and a sorting tank 20 that are integrally configured.
A large number of grain selection plates 21a, 21b, 21c are arranged in the interior of the 0, and the equalization tank 19 is connected to the above-mentioned supply gutter 17.
and communicates with the upper part of the grain selection plates 21 through the equalization valve 22, so that the number of stages of the grain selection plates 21 to be used can be selected as necessary by the equalization valve 22. It's getting old. The sorting tank 20, that is, the grain sorting board 21... is inclined three-dimensionally, that is, as shown in the figure, it is inclined downward to the right in the left-right direction, and in the front-back direction so that the front direction is downward relative to the plane of the paper. A swing device 23 using a parallel link mechanism provides reciprocating vibration motion in a predetermined direction. and,
The grain sorting plates 21... can adjust the inclination angle θ in the left-right direction, and as shown in FIG.
The partition plates 25 and 26 are arranged in such a way that their respective left and right positions X and Xm can be adjusted by a drive motor M3 and a position adjustment knob N. Furthermore, transfer troughs 27 and 29 are connected to the brown rice partition plate 25 and the paddy partition plate 26, respectively, and the brown rice A and paddy B flowing down from the grain selection plate 21...
The mixed rice AB is partitioned by partition plates 25, 26 and transfer channels 27, 29 and guided to the brown rice induction shutter 13, the mixed rice induction shutter 30, and the paddy return port 31, respectively, and the brown rice induction shutter 13 is further connected as described above. The rice is guided to the basket row 11 for transferring brown rice, and the mixed rice induction shutter 30 is guided to the screw conveyor 16 for transferring mixed rice together with the scraped mixed rice at the bottom of the roll 9, and the paddy return port 31 is connected to the rice hopper 6. It is electrically conductive.

In addition, as shown in Figure 1, and more specifically in Figure 3,
The brown rice on the grain selection plates 21 flowing down to the upper left and right portions of the exit portions of the grain selection plates 21, that is, the partitions divided by the brown rice partition plate 25 and the side plate 20a of the sorting tank 20. At the downstream end,
A brown rice sampling tube 32 is provided in a portion Xa where the brown rice A is always located and has a constant layer thickness without being affected by the side plate 20a, and similarly, a brown rice sampling tube 32 is provided in the lower portion in the left and right direction, that is, in the above-mentioned paddy partition plate 26. At the lower end of the paddy flow of the grain sorting plate 21 that flows down into the partition formed by the divided partition plate 26 and the side plate 20b of the sorting tank 20, the paddy B is always located at a portion Xb with a constant layer thickness. A paddy sampling take-out tube 33 is provided. Furthermore, a mixing section sampling cylinder 35 is provided at the lower end of the mixed rice flow between the brown rice partition plate 25 and the paddy partition plate 26 on the grain selection plates 21 so as to move together with the brown rice partition plate 25.

The brown rice sampling tube 32 and the paddy sampling tube 33 have a cylindrical structure with a predetermined shape and size, such as a square or round shape, as shown in FIGS. 4 to 6, and the upper end thereof The mounting ears 37, which are integrally fixed to the middle part by welding or the like, are fixed to the mounting plates 39, which are fixed to the grain selection plates 21a and 21c by rivets, etc., using bolts 40 and nuts 41. After installation, sampling ports 42a, 42b, 4 opened at the top and side of the sampling cylinders 32, 33.
2c (approximately 3 to 5 times the average grain diameter) are aligned with the grain selection plates 21, respectively. Note that FIGS. 10 and 11 show the sampling cylinder 32,
Fig. 10 shows an arrangement in which notches 46 are provided in each of the grain selection plates 21, and the sampling cylinders 32, 33 are embedded in the notches 46, and Fig. 11 shows another arrangement of the sampling tubes 33. A hole 47 is provided in each of the grain selection plates 21, and the sampling cylinder 3 is inserted into the hole 47.
2, 33 are installed so as to pass through them.

Further, the mixed rice sampling cylinder 35 is the seventh
As shown in Figures to Figure 9, it has a cylindrical structure with a predetermined shape and dimensions, and a mounting piece 37', which is integrally fixed by welding or the like to the upper end and middle part, is bolted to the partition plate 25. 40' and nuts 41', and after installation, the sampling ports 42a', 42b', and
42c' are aligned with the grain selection plates 21, respectively, and the partition plates 2
The positions of the openings can be changed as the openings 5 move. Note that FIGS. 12 and 13 show another arrangement of the sampling tube 35, in which it is provided on a movable contact plate 48' that can slide along a notch 46' provided in the grain selection plate 21. The sampling tube 35 is fixed in the hole 47'.

And these sampling tubes 32, 33, 3
5 communicates with counting shooters 49, 50, 51, respectively, and these shooters 49, 50, 51
Each has a grain detection sensor consisting of an optical sensor.
SS1 to SS4 (see Figure 2) are provided.
The grains slide and fall one by one and are counted by these detection sensors SS1 to SS4. That is, the detection sensor SS1 installed in the brown rice shooter 49 samples and measures the finished amount q ₁ of brown rice, and the detection sensor SS4 installed in the paddy shooter 50 samples and measures the circulating flow rate q ₂ of paddy, and furthermore, the detection sensor SS1 installed in the brown rice shooter 49 samples and measures the finished amount q 1 of brown rice. Two detection sensors SS2 and SS3 are installed in the shooter 51. Sensor SS2 samples and measures the circulating flow rate q ₂ of the mixed rice, and sensor SS3 measures the amount q ₂ ' of paddy contained in the mixed rice. It's becoming like that.

Since the present embodiment has the above-mentioned configuration, the hulling and sorting machine 1 allows the rice grains B in the husking hopper 7 of the hulling device 2 to be slid down by the rubber rolls 9, and the unrefined rice grains C to be collected as dust. Mixed rice that has been wind-selected and separated using a fan 10, and the grains have been separated.
AB is sent to the supply gutter 17 of the swing sorting device 5 via the screw conveyor 16 and the mixed rice bucket row 12, and is further flowed down from the equalization tank 19 to the grain sorting plates 21. Then, the grain sorting board 21 oscillates and sorts brown rice A, mixed rice AB, and paddy B, and brown rice A is taken out from the brown rice outlet 15 via the brown rice induction shutter 13 and the brown rice bucket row 11, and the mixed rice AB is sent to the supply gutter 17 again together with the mixed rice from the mixed rice induction shutter 30, and the paddy B is sent to the paddy return port 31.
A series of optimal hulling and sorting operations, in which the rice is returned to the husking hopper 6 again, is carried out by various sensors such as SS1 to SS4, M1 to M4, and the like shown in FIG.
This is automatically and continuously performed based on the operation of various actuators such as SOL1 to SOL3 and a control device such as a microcomputer (not shown). At this time, in the oscillating sorting device 5, each sampling tube 32, 33, 35, which is positioned as the optimum sampling device as described above, is connected to each grain selection plate 21.
...The oscillating sorted grains flowing down the top in a predetermined layer thickness distribution based on the inclination angle, oscillation width, grain supply amount, etc. are collected in sampling tubes at the downstream end of each grain selection plate 21... 32, 33, 35, openings 42a to 42c or 4 of a certain size are formed in the upper and side parts of the openings 42a to 42c.
Since samples are taken continuously from 2a' to 42c', the amount of grain sampled is exactly proportional to the total amount of each grain, brown rice, mixed rice, and paddy, at the time. That is, the sensor (SS1+
SS2), the flow rate of grains flowing to the grain selection plate 21 is detected, and based on the detection result, the actuator M
1 to adjust the supply amount control valve 7 so that the grains flowing to the grain selection plate 21 have a predetermined layer thickness. Also, based on the sensors (SS1-SS2), the distribution of grains on the grain selection board 21 is detected, and the actuator M2 is driven to control the grain selection board so that the grains are evenly distributed on the grain selection board 21. The inclination angle θ is controlled. Then, based on the sensor (SS3/SS2), the amount of paddy in the mixed rice is detected, and the actuator M3 is adjusted so that the detection result becomes a predetermined value (for example, 0.5%).
The actuator M is moved to move the brown rice partition plate 25, and the actuator M is moved so that the partition plate 25 is in a predetermined position.
4 to adjust the gap CR between the rolls 9a and 9b, and control the shedding rate to the set value.

As explained above, according to the present invention, brown rice,
Two partition plates 25 are used to separate the grains sorted into mixed rice and paddy and transfer them to the next process, respectively.
26, and grain sampling tubes 32, 33, 35 are provided within the compartments divided by the partition plates 25, 26 and corresponding to the grain flow lower end of the grain selection plate 21.
is provided to guide the sampled grains to the detectors, so that the grains can be sampled in exactly proportion to the distribution amount of each sorted grain, that is, brown rice, mixed rice, and paddy, on the grain selection plate 21. At the same time,
During sampling, the sampling tubes 32, 3
3, 35 allows sampling without disturbing or disturbing the flow of grains on the grain selection plate 21. Therefore, the subsequent grain detector can detect the amount of each grain with high accuracy, and thereby the amount of each grain, that is, the amount of brown rice q ₁ on the grain selection plate 21, the amount of mixed rice
q ₂ and the amount of paddy q ₃ , the total flow rate of grains flowing on the grain selection board (q ₁ + q ₃ ), the distribution of grains on the grain selection board (q ₁ - _{q 3} ), and the mixed rice content. It is now possible to accurately grasp how the dehulling rate changes from moment to moment based on the paddy mixing rate (q ₂ ′/q ₂ ) in the rice grains, and it is now possible to more precisely control the automatic control of the hulling and sorting machine. It becomes possible. That is, the brown rice, mixed rice, and paddy sampled through the sampling ports 42..., 42...' opened on the grain selection plate 21 are transferred to each sampling cylinder 32,
Since the detectors SS1 to SS4 installed at 35 and 33 respectively detect the flow rate of brown rice and paddy, the flow rate of brown rice and paddy can be sampled and measured.
1 and the distribution of grains on the grain selection plate 21 can be detected, and the amount of grain supplied to the oscillating sorting device 5 and the inclination angle of the grain selection plate 21 can be automatically controlled. becomes possible.

Furthermore, since the sampling ports 42 for brown rice and paddy are provided in the portions Xa and Xb of the grain selection plate 21, which have a constant layer thickness and are not affected by the side plates, the flow rate of brown rice and paddy can be accurately sampled. The automatic control described above can be performed with high precision.

[Brief explanation of drawings]

Fig. 1 is an overall schematic diagram showing a hulling and sorting machine to which the present invention is applied, Fig. 2 is an overall schematic diagram showing the operating parts of the control system of the hulling and sorting machine, and Fig. 3 is a plan view of a swinging sorting device. Figures 4 to 6 are views showing how the sampling cylinder is attached to the grain selection board, with Figure 4 being a plan view, Figure 5 being a front view, Figure 6 being a vertical side view, and Figures 7 to 9. Figure 7 is a plan view, Figure 8 is a front view, Figure 9 is a longitudinal side view, and Figures 10 and 11 are views showing how the sampling tube is attached to the partition plate. 12 and 13 are other embodiment views showing how the tube is attached to the partition plate, and FIG. 12 is a plan view, and FIG. 13 is a plan view thereof. FIG. 1... Hulling and sorting machine, 2... Hulling device, 5...
Oscillating sorting device, 20a, 20b... side plate, 21
a, 21b, 21c... grain selection board, 25, 26...
Partition plate, 32, 33, 35...sampling tube,
42a, 42b, 42c, 42a', 42b', 42
c'...Sampling port, M2...Inclination control means,
SS1~SS4...detector.

Claims (1)

[Scope of Claims] 1. A hulling and sorting machine equipped with a husking device and a swinging sorting device having a grain sorting plate that is inclined forward, backward, left and right, and is given reciprocating vibrating motion, comprising: an inclination control means for freely adjusting the directional inclination; and an inclination control means disposed at the lower end of the longitudinal inclination of the grain sorting plate, which separates the sorted grains into brown rice, paddy, and a mixture thereof and transfers them to the next process. two partition plates, and a sampling port disposed within the compartment divided by these partition plates and at an inclined end in the front and back direction of the grain selection plate, and each opening on the grain selection plate; The sampling tube includes sampling tubes for mixed rice and paddy, and a detector for detecting the grains sampled in each of the sampling tubes, and the sampling tube for sampling the brown rice and the sampling tube for sampling the paddy. The spout is placed at a predetermined distance from the side plate of the grain selection plate so as not to be affected by the side plate, and the grain selection plate is processed based on the sampling of the portion with the constant layer thickness. A sampling device for grain selection board in a hulling and sorting machine, characterized by detecting the flow rate of grains. 2. A sampling cylinder for sampling the mixed rice is attached to a partition plate that separates brown rice and mixed rice, and the partition plate is made movable, so that the sampling position of the mixed rice can be moved with the movement of the partition plate. A sampling device for grain selected from a grain selection board in a hulling and sorting machine according to claim 1.