JPS6361070B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a rotary separator provided in the grain sorting section of a hulling device that automatically adjusts its supply amount to prevent brown rice from being mixed into the unhulled rice.

Conventionally, as shown in FIG.
In the case of a rotary separator that scoops up sorted grains and separates unhulled rice a and brown rice b, if the amount supplied to the rotary separator is larger than the fixed amount, the result will be as shown in Figure 2, and brown rice b will be mixed in sorted unhulled rice a. There was a defect that included. When the amount supplied to the rotary separator is fixed, the third
As shown in the figure, brown rice b is not mixed into sorted unhulled rice a.

Therefore, the present invention is capable of automatically adjusting the supply amount to the rotary separator so that it is always appropriate. In the grain sorting section of the hulling device, the grain sorting section is configured to select a mixed rice consisting of unhulled rice and brown rice that have been wind sorted in the wind sorting chamber.
A rotary separator is provided inside which has a roughly U-shaped collection spiral receiving gutter and which scoops up sorted grains through a pot hole formed on the inner circumferential surface to separate unhulled rice and brown rice. In the apparatus in which the rice is returned to the hulling room for hulling, a sensor capable of detecting the amount of the returned unhulled rice is installed in the passage of the unhulled rice of the rotary separator, and a supply amount adjustment mechanism is installed in the supply section of the rotary separator. The gist of the present invention is to provide a structure of a rotary separator of a hulling device in which a device is provided, and the sensor and the feed amount adjusting device are connected to automatically adjust the feed amount to the rotary separator.

To explain with reference to the drawings below, reference numeral 1 denotes a husking hopper, a hulling chamber 2 is provided in the lower part of the husking hopper 1, and a pair of hulling rolls 3 are provided inside the hulling chamber 2.
3 is mounted on the shaft. There is a wind selection room 4 at the bottom of the hulling room 2.
A suction fan 6 and a discharge pipe 7 are attached to this air selection chamber 4. A discharge port 8 is opened at the tip of the discharge pipe 7. Further, a downflow gutter 5 is provided in the wind selection chamber 4, and a mixed rice receiving gutter 9 and an immature grain receiving gutter 10 for brown rice b and unhulled rice a are formed below the flowing gutter 5, respectively. On the immature grain receiving trough 10, spiral sun bears 11 and 12 are installed horizontally. Furthermore, inside the wind selection room 4, a suction fan 6 and a mixed rice receiving trough 9 are installed.
A partition plate 13 is provided between them, and the immature grain receiving trough 10 is fixed to this partition plate 13. Thus, a grain sorting section 14 is provided adjacent to the hulling room 2. Grain sorting department 1
4, rotary separators 15 and 16 are horizontally installed in upper and lower stages in a freely rotatable manner. 17 is the rotating drum of the upper rotary separator 15;
As is well known, the rotating drum 17 has a number of potholes 18 on its inner surface. Inside the rotating drum 17, there is a mixed rice collection spiral receiving trough 19 having a substantially U-shaped cross section.
and a brown rice collection spiral receiving trough 20 are installed in parallel. The mixed rice collection spiral receiving trough 19 is horizontally installed closer to the rotationally rising side 21 of the rotating drum 17. 22 is a spiral conveyor installed horizontally on the mixed rice collection spiral receiving trough 19; 23
is a spiral conveyor installed on the brown rice recovery spiral catch trough 20. Reference numeral 24 denotes an adjustment plate installed between the two, which is raised and lowered to adjust the separation of brown rice and mixed rice. A supply funnel 25 is provided on the side of the hulling room 2 of the mixed rice collection spiral receiving trough 19. The upper end of the elevator 26 attached to the discharge end of the mixed rice receiving trough 9 opens onto the supply funnel 25 . At the end side of the mixed rice collection spiral receiving trough 19, there is a drop port 28 leading to the inside of the rotating drum 27 of the lower rotary separator 16.
Open. Lower rotary separator 16
Similarly to the upper rotary separator 15, a brown rice recovery spiral receiving trough 29 is provided in the upper rotary separator 15. 30 is a spiral conveyor installed horizontally on the brown rice collection spiral receiving trough 29, and 31 is a brown rice take-out section.

32 is a passage for returning unhulled rice, and in the passage 32 for returning unhulled rice, there is a sensor 33 that can detect the amount of unhulled rice that has been returned, and a switch 34 operated by the sensor 33.
Further, the supply funnel 25 is provided with a motor 35 and a valve 36 that automatically adjusts the supply amount by the motor 35.

Next, we will discuss the effect.

First, when the raw material unhulled rice is supplied to the loading hopper 1, the raw unhulled rice flows down the loading hopper 1, flows into the hulling chamber 2, is hulled by the hulling rolls 3, 3 at one end, and is passed through the downflow gutter 5. It falls from above and flows into the wind selection chamber 4. In the wind selection chamber 4, wind is blown by the action of the suction fan 6, so that the light rice husks are discharged from the discharge port 8 through the discharge pipe 7. The immature grains collide with the partition plate 13, flow into the immature grain receiving trough 10, and are discharged to the outside by the spiral conveyor 12. The mixed rice of brown rice b and unhulled rice a flows into the mixed rice receiving gutter 9, is supplied to the elevator 26 by the spiral conveyor 11 on the rice receiving gutter 9, and is transferred to the feed funnel 25 of the grain sorting section 14 by the action of the elevator 26. is supplied to and,
The mixed rice is supplied from the supply funnel 25 to the spiral receiving trough 19, and is transported horizontally by the horizontal transport action of the spiral conveyor 22, and some of it is transferred to the rotating drum 17 from the drop port 37 in the middle.
Feeds falling within.

In the rotating drum 17, the pot hole 18 on the inner surface
According to a well-known theory, the mixed rice falls into the mixed rice recovery spiral receiving trough 19, the brown rice falls into the brown rice recovery spiral receiving trough 20 and is transferred, while only the unhulled rice remains in the rotating drum 17 and is transferred to the unhulled rice. The unhulled rice is returned to the supply funnel 1 through the return passage 32, and if there is a large amount of returned unhulled rice in the return passage 32, a sensor 33 that can detect this detects this and the switch 3 is turned on.
4 is turned ON or OFF, and the motor 35 of the supply funnel 25 automatically adjusts the valve 36 to reduce the supply amount. On the other hand, when the amount of returned unhulled rice in the unhulled rice returning passage 32 is small, the sensor 33 detects this and turns the switch 34 ON or OFF, and the motor 35 of the supply funnel 25 automatically turns on the valve. 36
Adjust the supply amount to increase.

The brown rice b that has flowed into the approximately U-shaped brown rice collection spiral receiving gutter 20 flows into the rotating drum 27 at the lower part through the drop opening 28, and is similarly sorted through the pot hole 18 to remove only the brown rice b in the lower layer. U-shaped brown rice collection spiral catch trough 2
The brown rice is collected at 9 and taken out to the brown rice removal section 31 and moved to the next process. Lower rotating drum 27
The remaining brown rice contains some unhulled rice and is returned to the mixed rice receiving trough 9.

Conventionally, as shown in Fig. 1, a rotary separator is equipped with an approximately U-shaped collection spiral receiving gutter A inside and scoops up sorted grains through a pot hole B formed on the inner peripheral surface to separate unhulled rice A and brown rice B. In this case, if the amount supplied to the rotary separator is larger than the fixed amount, the result will be as shown in Figure 2, and brown rice b will be mixed in sorted paddy rice a.
There was a defect that included. When the amount supplied to the rotary separator is constant, the brown rice b does not mix into the sorted paddy rice a as shown in FIG.

The present invention comprises a hulling room 2, a wind-selection room 4 for wind-selecting the hulled grains hulled in the hulling room 2, and a mixture consisting of unhulled rice a and brown rice b wind-selected in the wind-selection room 4. The grain sorting section 1 of the hulling device has a grain sorting section 14 that sorts rice.
4, there are approximately U-shaped collection spiral receiving troughs 19, 20 inside.
Rotary separators 15 and 16 are provided for scooping up sorted grains through a pot hole 18 formed on the inner peripheral surface and sorting unhulled rice a and brown rice b, and the grain sorting section 14
The unhulled rice a sorted within the hull is returned to the hulling chamber 2 for hulling, and a sensor 33 capable of detecting the amount of unhulled rice is provided in the passage 32 for the unhulled rice of the rotary separator 15. , a rice hulling device in which a feed rate adjusting device is provided in the feed section of the rotary separator 15, and the sensor 33 and the feed rate adjusting device are connected to automatically adjust the feed rate to the rotary separator 15; Since the rotary separator is configured as shown in FIG.
According to the well-known theory, the mixed rice falls into the mixed rice recovery spiral receiving trough 19, the brown rice falls into the brown rice recovery spiral receiving trough 20 and is transferred, and only the unhulled rice remains in the rotating drum 17. Paddy rice return passage 32
If there is a large amount of returned unhulled rice in the unhulled rice returning passage 32, the sensor 33 detects this and turns the switch 34 ON or OFF, and the unhulled rice is returned to the supply funnel 1 through the The motor 35 automatically adjusts the valve 36 to reduce the supply amount. Conversely,
When the amount of returned unhulled rice in the unhulled rice returning passage 32 is small, the sensor 33 detects this and turns the switch 34 ON or OFF, and the motor 35 of the supply funnel 25 automatically closes the valve 3.
6 is adjusted to increase the supply amount, thereby achieving the effect that sorting can be performed under optimal conditions at all times.

[Brief explanation of drawings]

Figure 1 is a longitudinal cross-sectional view of the rotary separator.
Fig. 2 is a cross-sectional view of the rotary separator with excessive supply, Fig. 3 is a cross-sectional view of the rotary separator with proper supply, Fig. 4 is a partially vertical side view of the whole, and Fig. 5 is a cross-sectional view of the rotary separator.
6 is a partially enlarged longitudinal side view, FIG. 7 is a partially enlarged longitudinal front view, and FIG. 8 is an electric circuit diagram. Slotting hopper...1, Hulling room...2, Hulling roll...3, Wind sorting room...4, Downflow gutter...5, Suction fan...6, Discharge pipe...7, Discharge port... 8. Mixed rice receiving gutter...9, Immature grain receiving gutter...10, Spiral conveyor...11,12, Partition plate...13, Grain selection section...14, Rotary separator...15,1
6. Rotating drum...17. Pot hole...18. Mixed rice recovery spiral catch channel...19. Brown rice recovery spiral channel...2
0, Rotation rising side...21, Spiral conveyor...2
2, 23, Adjustment plate...24, Supply funnel...25,
Elevator...26, Rotating drum...27, Drop opening...
...28, Spiral conveyor...30, Brown rice removal section...
...31, Paddy rice return passageway...32, Sensor...3
3, Switch...34, Control motor...35,
Valve...36.

Claims (1)

[Claims] 1. A hulling room, a wind selection room for wind-selecting the hulled grains that have been hulled in the hulling room, and a grain selection section that sorts the mixed rice consisting of unhulled rice and brown rice wind-selected in the wind-selection room. In the grain sorting section of the hulling device, there is provided a rotary separator which has an approximately U-shaped collection spiral gutter inside and scoops up the sorted grains through a pot hole formed on the inner peripheral surface to separate unhulled rice and brown rice. wherein the unhulled rice sorted in the grain sorting section is returned to the hulling chamber for hulling, and a sensor capable of detecting the amount of unhulled rice is provided in the passage of the unhulled rice of the rotary separator. , a rotary separator of a rice hulling device, wherein a supply amount adjusting device is provided in the supplying section of the rotary separator, and the sensor and the feeding amount adjusting device are connected to automatically adjust the amount of supply to the rotary separator. .