JPS6340141B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a rice hulling device.

More specifically, it is equipped with a dehulling device for dehulling unhulled rice into brown rice, and a rotary sorting cylinder for sorting out a mixture of dehulled and unhulled rice using a large number of depressions (concavities) provided on the inner surface of the peripheral wall. The present invention relates to an improvement in a hulling device that is provided with a mixed rice receiving trough at a lower part thereof to receive the scraped rice that has been deprocessed by the dehulling device.

The hulling device of the above-mentioned form sends the hulled rice (a mixture of shelled and unhulled rice), which has been deprocessed in the hulling device and collected in the mixed rice receiving trough, to a rotating sorting tube, where it is rotated and sorted. A large number of depressions (concavities) provided on the inner circumferential surface of the peripheral wall of the cylinder pick up and sort the shed grains, and the mixed rice sorted by this rotating sorting cylinder is fed again and sorted again together with the rice that has fallen through the cracks. This means that if more than a certain amount of scraped rice is fed into the rotary sorting cylinder, the rotary sorting cylinder will pick up a lot of shed grains (brown rice), but it will also scoop out a lot of unshelved rice (hulls), so the finished rice to be taken out will be A problem arises when a large amount of paddy is mixed in.

The present invention was made in order to solve this problem, and it does not cause lost grains that fly out of the machine, or increases the number of damaged grains due to shedding grains in the mixed rice being supplied to the de-shaping device. without doing,
Excess amount of washed-out rice and mixed rice supplied to the rotary sorting cylinder is caused to overflow outside the rotary sorting cylinder, and the amount of fallen rice and mixed rice present in the rotary sorting cylinder is kept below a certain amount. The purpose is to provide new means to encourage

For this purpose, the present invention provides a paddy removal device that is equipped with a rotary sorting cylinder having a large number of depressions on the inner surface of the peripheral wall, and a mixed rice receiving trough that receives the scraped rice that has been rubbed off by the removal device. It is a sliding device,
The end of the rotary sorting cylinder on the side of the removing device is supplied with a supply part of the scraped rice scraped off by the removing device and mixed rice collected in a mixed rice catcher installed in the rotary sorting cylinder. The opening faces the supply section and opens toward the removal device side, and the opening is provided with a protrusion that protrudes from the peripheral wall of the rotary sorting cylinder toward the axis, and guides the outside thereof. The present invention proposes a hulling device that is connected to the mixed rice receiving trough via a passage.

Next, embodiments will be described in detail with reference to the drawings.

FIG. 1 is a vertically sectional side view of a rice hulling device A in which the present invention can be carried out, in which a shows the removing device, b shows a winch, and c shows a sorting section.

The unrolling device a consists of two unrolling devices 2, 2 that are mounted on a shaft in parallel to the machine frame 1, and a sliding amount adjustment device 3 that is installed above the unrolling device 2, and a paddy filling tank above the unrolling device a. 4 is installed.

As shown in FIG. 2, the sliding amount adjustment device 3 includes a control valve 32 whose opening degree is adjusted by a sliding amount adjustment dial 31, and a sensor 1, which will be described later.
6, it is further configured to operate in the opening and closing directions. 33 is the arm, wire 5
The control valve 32 is connected to the sensor 16 via the control valve 32.
It is designed to operate in the opening/closing direction.

Again, in FIG. 1, the karachi b selects the fallen rice (mixture of shelled and unshelled rice) falling from the shelling device a, removes the paddy grains, and turns the rice into rice cakes. In the catcher 6, put the fallen rice into the catcher 7 for mixed rice.
It is becoming more and more selective. 61 is a helix for rice cakes, 71 is a helix for mixed rice, and 8 is a conveyor for mixed rice, the lower end of which is connected to the helix 71 for mixed rice, and the upper end of which is connected to the rotary sorting cylinder 9 of the sorting section c (described later). It communicates with the upper opening of a supply gutter 10 for supplying the fallen rice to the feeder.

In the sorting section c, a rotary sorting cylinder 9, which rotates and has a large number of depressions (concavities) on the inner surface of the peripheral wall, is horizontally supported in the machine frame 1 so as to be tilted downward to the right in FIG. The end of the rotary sorting cylinder 9 on the removing device a side is configured to be a receiving side that receives grains to be sorted, and inside the rotary sorting cylinder 9, a mixed rice receiving trough 11 is provided. As shown in FIG. 3, finished rice receiving troughs 12 are mounted in parallel on the left and right with their axial directions parallel to each other. As shown in FIG. 4, the mixed rice receiving gutter 11 has an upper left half covered, an upper right half open, and a bottom surface of the mixed rice receiving gutter 11. As shown in FIG. 1, an opening 11b is provided at the left end side. and,
The above-mentioned supply gutter 10, whose upper end communicates with the upper end of the mixed rice conveyor 8, has a lower mouth which serves as a supply section.
It communicates with the left end side of the mixed rice receiving gutter 11 installed in the rotary sorting cylinder 9, so that the mixed rice is collected in the mixed rice receiving gutter 7 and transferred from the mixed rice conveyor 8 to the supply gutter 1.
The dropped rice fed into the mixed rice receiving trough 11 is supplied to the receiving side of the inner cavity of the rotary sorting cylinder 9 from an opening 11b in the bottom surface on the left end side of the trough. Further, a mixed rice helix 11a is pivotally supported in the mixed rice receiving trough 11, and the mixed rice helix 11a has a different conveyance direction with respect to the opening 11b.
c and the right helix 11d are the mixed rice receiving trough 11.
The dropped rice and mixed rice supplied in the opening 1
1b. Also,
The finished rice receiving trough 12 is open at the top over the entire axial direction (Fig. 3), and the right end side is open to the machine frame 1.
The projecting end 12b is connected to the finished rice thrower 14 via a vertical guide trough 13 (FIG. 4). 12a is a helix for finishing rice that is pivotally supported along the finishing rice receiving trough 12.

The inner surface of the peripheral wall of the rotary sorting tube 9 is provided with a fine depression (recess) 9a on the feeding side (left side in Figure 1) for scooping out only rice grains, and on the discharge side for scooping out not only rice grains but also paddy grains. A rough depression (recess) 9b is formed. An opening 9d that opens toward the removing device a side is provided at the left end side in FIG. A ring-shaped protrusion 9c is provided that protrudes upward from the end of the peripheral wall of the rotary sorting cylinder 9 toward the axis. When the rice is supplied, the fallen rice and mixed rice accumulated higher than the protrusion 9c overflow from the opening 9d to the outside of the rotary sorting cylinder 9, and the rice inside the rotary sorting cylinder 9 is fed. The amount of dropped rice and mixed rice is kept within a stacking height that is equal to the height of the protrusion 9c. And this opening 9d
The outside communicates with the mixed rice receiving trough 7 through a guide passage 15 provided in the machine frame 1, and the sludge rice/mixed rice that pops out from this opening 9d and the sludge that overflows beyond the protrusion 9c. Rice and mixed rice pass through a guide passage 15 and are guided to the mixed rice receiving trough 7.

As shown in FIG. 2, the guide passage 15 is provided with a sensor 16 which is normally biased in the direction of closing the guide passage 15. Reference numeral 17 denotes an arm fixed to the shaft 16a of the sensor 16. A spring 18 is engaged with the arm 17 to bias the sensor 16 in the direction of closing it, and the arm 17 is engaged with a spring 18 that biases the sensor 16 in the direction of closing it. An inner wire 5a is connected to adjust the opening degree of the control valve 32 to "small" or "large" depending on the opening.

In FIG. 1, reference numeral 19a denotes a screw for recovering paddy, and a receiving trough 1 communicates with the discharge side of the rotary sorting tube 9.
It is mounted on a shaft inside 9. 19b is a discharge port of the receiving trough 19, which communicates with the paddy recovery thrower 20 which communicates with the paddy filling tank 4.

Next, the operation of the hulling device A configured as described above will be explained.

When paddy grains are loaded into the paddy loading tank 4, the supply amount of the rice grains is regulated by the control valve 32, and the rice grains are guided into the opposing gap between the de-rolls 2, 2, and are removed from the shell by the de-rolls 2, 2. It falls downward under a sliding action that does not cause any damage such as cracking, and during that time, the paddy grains are removed by the wind-selecting action of the chisel b, becoming the fallen rice, which is sent to the mixed rice receiving trough. You will be guided to 7.

The mixed rice guided to the mixed rice receiving trough 7 is sent to the lower side of the mixed rice conveyor 8 by the mixed rice screw 71, and is transferred to the supply trough of the sorting section c by the conveyor 8. The mixed rice is guided from the feed gutter 10, which serves as a feeder for the dropped rice, to the mixed rice receiving gutter 11 in the rotary sorting cylinder 9.

The fallen rice guided to the mixed rice receiving trough 11 is initially rotated from the opening 11b directly through the opening 11b or via the helical 11c on the left side (FIG. 1) of the mixed rice helix 11a. It is supplied to the left end side of the sorting cylinder 9, which is the supplied side. Then, as shown in FIG. 3, this fallen rice is initially shed by the fine depressions 9a on the inner surface of the peripheral wall of the rotary sorting cylinder 9, which rotates counterclockwise. Only the brown rice is scooped out, and the unhulled paddy grains are
Not 100% of the brown rice is scooped out, but it is sent as it is to the lower part (that is, the right side in Figure 1), and in the process, only the brown rice that has been scooped into the depression 9a is poured into the finished rice receiving trough 12. Then, 100% of the scraped rice sent to the downstream side of the rotary sorting tube 9 is scooped out along with the paddy grains by the rough depressions 9b on the inner surface of the peripheral wall of the rotary sorting tube 9. Opening part 1 of mixed rice receiving gutter 11
From 1e, mixed rice is poured there, and the rice grains (brown rice) remaining at the bottom of the depression 9d are poured into the finished rice receiving trough.

The mixed rice put into the mixed rice receiving trough 11 from the opening portion 11e is transferred to the helix 11 on the right side of the opening 11b of the mixed rice helix 11a that is pivoted there.
d, the mixed rice is transferred in the opposite direction, that is, on the mixed rice receiving trough 11 toward the opening 11b;
From there, it is returned to the starting end of the rotary sorting tube 9, where it joins with the fallen rice supplied from the supply gutter 10, and is again subjected to the sorting action by the rotary sorting tube 9 in the same manner as described above.

In this way, when the amount of washed-out rice or mixed rice existing in the rotary sorting cylinder 9 increases while the fallen rice and mixed rice are repeatedly sorted by the rotating sorting cylinder 9, the mixed rice is The excess portion supplied to the rotary sorting tube 9 from the opening 11b provided at the bottom of the rice receiving trough 11 immediately overflows from the opening 9d at the end of the rotary sorting tube 9 on the receiving side and flows into the guide passage 15. The rice is released and guided to the mixed rice receiving trough 7 below the removing device a, and from there the mixed rice conveyor 8
from the supply gutter 10 to the mixed rice receiving gutter 11 in the rotary sorting cylinder 9.

At this time, if the amount of dropped rice and mixed rice to be returned exceeds the capacity of the sorting process and becomes abnormally large, it overflows the opening 9d and enters the guide path 1.
A sensor 16 provided there detects the amount of dropped rice and mixed rice discharged to the inner wire 5a, and the rice is rotated clockwise in FIG. As a result, the arm 33 of the removing device a is rotated counterclockwise to narrow the opening degree of the control valve 32, thereby reducing the amount that is slid out and dropped by the removing rolls 2, 2. However, the amount of grains to be sorted supplied to the rotary sorting cylinder 9 is reduced.

In this way, the amount of dropped rice and mixed rice in the rotary sorting cylinder 9 is reduced, and the guide passage 14
When the amount of mixed rice passing through decreases, the sensor 16 no longer detects it, rotates counterclockwise and returns to the normal position, and the tension on the inner wire 5a is also released, and the arm of the removing device a 33
is also restored to its normal position, and the control valve 32 is also restored to its initial setting position.

In this way, the amount of mixed rice is adjusted to a predetermined sortable amount.

As explained above, the rice hulling device according to the present invention is
A hulling device comprising: a removing device; a rotating sorting tube having a large number of depressions on the inner surface of a peripheral wall; and a mixed rice receiving trough for receiving the scraped rice scraped off by the removing device, the rotary sorting tube At the end on the side of the removing device, there is a supply section for the scraped rice scraped off by the removing device and a supply section for supplying the mixed rice collected in the mixed rice receiving trough installed in the rotary sorting cylinder. The opening is open toward the facing side and the removal device side, and the opening is provided with a protrusion that protrudes from the peripheral wall of the rotary sorting cylinder toward the axis, and the outside thereof is opened through a guide passage. Since it is configured to communicate with the mixed rice receiving trough, if an excessive amount of dropped rice or mixed rice is supplied into the rotary sorting tube 9, the end of the rotary sorting tube 9 on the side to be fed is Opening 9 provided at the end of the removal device a side
Since it immediately overflows from d, the amount of dropped rice and mixed rice in the rotary sorting tube 9 is kept below a certain amount, and many depressions 9a are formed on the inner surface of the peripheral wall of the rotary sorting tube 9. Sorting of mixed rice by ...9b... can now be performed stably. The overflowing dropped rice and mixed rice are collected in the mixed rice receiving trough 7 through the guide passage 15 and returned to the rotary sorting tube 9. The shredded rice (brown rice) will not be supplied to the shredded device a and cause damaged grains.

Further, in the second invention, a sensor is further provided in the guide passage to detect the amount of falling rice, and the sensor is used to control a control valve that adjusts the amount of dropped rice supplied to the rotating sorting tube. Since the control valve is linked to the control valve, when the amount of overflowing scraped rice or mixed rice becomes abnormally large, the grains to be sorted (grains to be sorted) supplied from the huller to the rotary sorting cylinder are This reduces the amount of dropped rice (dropped rice), so excess dropped rice that overflows and is returned is reduced.
The mixed rice will no longer exceed the processing capacity of the rotary sorting cylinder.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional side view of a rice hulling device that can carry out the present invention, Fig. 2 is an enlarged vertical sectional side view of the main parts of the same rice hulling device, Fig. 3 is a sectional view of Fig. 1, and Fig. 4 is the same as the above. FIG. 3 is a cross-sectional plan view of the sorting section of the rice hulling device. Explanation of drawing symbols A: Hulling device, a: De-hulling device, b: Drawer, c: Sorting section, 1: Machine frame,
2... De-rolling, 3... Rolling amount adjustment device,
31...Adjustment dial, 32...Adjustment valve, 33...
...Arm, 4...Paddy filling tank, 5...Wire, 5a...Inner wire, 6...Receiving gutter for rice cake, 61...Spiral for rice cake, 7...Receiving gutter for mixed rice,
71... Spiral for mixed rice, 8... Conveyor for mixed rice, 9... Rotating sorting tube, 9a... Fine depressions (recesses), 9b... Coarse depressions (recesses), 9c...
Projection, 9d... Opening, 10... Supply gutter, 11
...Mixed rice catcher, 11a...Spiral for mixed rice, 1
1b...Opening, 11c...Left spiral, 11d
...Right helix, 11e...Opening part, 12...
...Finishing rice receiving trough, 11a... Spiral for finishing rice, 11
b... Projecting end, 13... Guide gutter, 14... Finished rice thrower, 15... Guide path, 16... Sensor, 16a... Shaft, 17... Arm, 18... Spring, 19... Receiving gutter , 19a... Screw, 19
b...Discharge port, 20...Recovery thrower.

Claims (1)

[Scope of Claims] 1. A hulling device comprising a dehulling device, a rotating sorting cylinder having a large number of depressions on the inner surface of the peripheral wall, and a mixed rice receiving trough for receiving the scraped rice scraped off by the dehulling device. At the end of the rotary sorting tube on the side of the removing device, there is provided a supply section for the scraped rice scraped off by the removing device, and a mixed rice receiving gutter installed in the rotary sorting tube to collect the mixed rice. A supply unit that supplies
An opening is opened toward the removal device side, and the opening is provided with a protrusion that protrudes from the peripheral wall of the rotary sorting tube toward the axis, and the outside of the protrusion is provided with a protrusion that protrudes from the peripheral wall of the rotary sorting cylinder through a guide passage. A rice hulling device connected to a receiving trough. 2. A rice hulling device comprising a dehulling device, a rotary sorting cylinder having a large number of depressions on the inner surface of the peripheral wall, and a mixed rice receiving trough for receiving the scraped rice scraped off by the dehulling device, At the end of the cylinder on the side of the removing device, there is a supply section for supplying the scraped rice scraped by the removing device and a supply section for supplying the mixed rice collected in the mixed rice receiving trough installed in the rotary sorting cylinder. is coming, and
An opening is opened toward the removal device side, and the opening is provided with a protrusion that protrudes from the peripheral wall of the rotary sorting cylinder toward the axis, and the outside of the protrusion is provided with a protrusion that protrudes from the peripheral wall of the rotary sorting cylinder through a guide passage. A sensor that communicates with the receiving gutter and detects the amount of falling rice is provided in the guide passage, and the sensor is connected to the control valve that controls the amount of dropped rice that is supplied to the rotating sorting cylinder. A rice hulling device characterized by being connected in a related manner.