JPS6349549B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is directed to a grain sorting device with a horizontal shaft rotary sorting tube.

(Prior art) Conventionally, countless potholes are formed on the inner circumferential surface of a horizontal-axis rotating sorting tube, and a collection gutter is installed horizontally inside the horizontal-axis rotating sorting tube, and the rotation of the horizontal-axis rotating sorting tube is increased. It is known that the recovery gutter on the side is provided with an adjustment plate that can adjust the area of the recovery gutter to be large or small.

(Problems to be Solved by the Invention) In the above-mentioned known horizontal axis rotating sorting tube, when the amount of feed is large, the proportion of grains that rises to the rotational upward side increases, so even at the same rotational speed, there is a large amount of grain in the collection receiving gutter. If unhulled rice is mixed in and the supply amount is small, the proportion of grains that rises to the rotational upward side will be small, so the efficiency of collecting brown rice in the collecting trough will be low even at the same rotational speed.

Therefore, ideal separation can be achieved by automatically adjusting the area of the collection gutter depending on the amount of supply.

(Means for Solving the Problem) Therefore, the present invention forms countless potholes 17 on the inner circumferential surface of the horizontal axis rotary sorting tube 16, and installs a collection receiving gutter 18 inside the horizontal axis rotary sorting tube 16. The collection receiving gutter 18 is installed horizontally and is on the upward rotation side of the horizontal axis rotating sorting tube 16, and is provided with an adjusting plate 20 that can adjust the area of the collecting receiving gutter 18 to be large or small. is provided with a detection plate 25 for detecting the layer thickness of the grain, and when the detection plate 25 detects a large layer thickness, the detection plate 25 detects the layer thickness so as to reduce the area of the collection gutter 18. When a small amount is detected, the detection plate 25 and the adjustment plate 2 are moved so that the area of the collection gutter 18 is increased.
A grain sorting device formed by interlocking and connecting 0, and
The adjustment plate 20 is provided in the supply section, and the adjustment plate 20
There is an adjustment plate 2 on the shaft that can adjust the degree of opening and closing.
A grain sorting device 1 separately provided and a scraping plate 36 for leveling the surface layer of the grain scooped up through a pot hole 17 formed on the inner surface of the horizontal shaft rotating sorting cylinder 16 are attached to the collecting gutter 18. The present invention is a grain sorting device in which a passage 35 is formed in the collection receiving trough 18 to return the grains into the horizontal axis rotating sorting cylinder 16.

(Example) To explain an example, Fig. 1 shows a schematic diagram of a hulling device using a pothole type sorter a in the grain sorting section, b is a hulling roll, and The unhulled rice that has been hulled by the roll b becomes a three-part hulled product of brown rice c, unhulled rice d, and rice husk e, which is fed into the horizontal axis rotating sorting tube f of the pot hole type sorter a, and then the horizontal axis rotating sorting tube The grains that have sunk to the lower layer in the horizontal rotary sorting tube f are scooped up by the pot holes g formed on the inner surface of the horizontal axis rotating sorting tube f, and are separated from the grains that have floated in the upper layer. Looking at the condition, the supply side becomes thicker and exhibits various characteristics.

The present invention has improved this point, and will be explained below with reference to the drawings. Reference numeral 1 denotes a husking hopper, a hulling chamber 2 is provided at the bottom of the husking hopper 1, and a pair of hulling chambers 2 are provided inside the hulling hopper 1. The hulling rolls 3, 3 are mounted on a shaft. A wind selection room 4 is formed in the lower part of the hulling room 2, and a suction fan 6 and a discharge pipe 7 are attached to this wind selection room 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 consisting of brown rice and unhulled rice and an immature grain receiving gutter 10 are formed below the flow gutter 5, respectively.
Spiral conveyors 11 and 12 are installed horizontally on a mixed rice receiving trough 9 and an immature grain receiving trough 10.

Thus, a grain sorting section 13 is provided adjacent to the hulling room 2. Inside the grain sorting section 13, pot hole type sorters 14 and 15 are horizontally installed in upper and lower stages in a freely rotatable manner. Reference numeral 16 denotes a horizontal rotary sorting tube of the upper pot hole type sorter 14, and the horizontal rotary sorting tube 16 has a large number of pot holes 17 on its inner surface as shown in FIG. At the center of the horizontal rotary sorting cylinder 16, there is a grain collecting trough 1 whose cross section is approximately U-shaped.
8 will be provided. 19 is a spiral conveyor installed horizontally on the collection gutter 18.

The recovery gutter 18 on the upward rotation side of the horizontal rotary sorting tube 16 is provided with an adjustment plate 20 that can adjust the area of the recovery gutter 18 to be large or small. The adjustment plate 20 is attached separately to a supply section 22 and a discharge section 23. Reference numeral 21 denotes an adjustment plate provided in the discharge section 23.

The adjustment plate 20 attached to the supply section 22 is rotated by the detection plate 25 attached to the collection receiving gutter 18 . That is, as shown in FIG. 3, a protrusion 24 is attached to the recovery gutter 18, an L-shaped lever 26 to which a detection plate 25 is attached is fixed to the protrusion 24, and an arm 28 of the adjustment plate 20 is attached to the L-shaped lever 26. The shaft is fixed 29. Reference numeral 30 denotes a spring that constantly rotates the detection plate 25 toward the inner surface of the horizontally rotating sorting tube 16, and when the detection plate 25 detects a large layer thickness, reduces the area of the recovery gutter 18. When the detection plate 25 detects a small layer thickness, the detection plate 25 and the adjustment plate 20 are interlocked and connected to increase the area of the collection gutter 18.

The embodiment shown in FIG. 5 is an embodiment in which a scraping plate 36, which serves as a scraper, is attached to the lower side of the collecting trough 18 to scrape the surface layer 32 of grains 31 that have been supplied in excess.

In this way, the scraping plate 36 scrapes off excess grains, so that the supply section 22 is also averaged.
In the case of FIG. 5, a funnel 33 is attached to the inside of the adjustment plate 21 attached to the recovery gutter 18.

The bottom plate 34 of the funnel 33 is made of a perforated plate, through which the brown rice passes. A return passage 35 is formed at the lower end, and a drop opening 37 is formed at the scraping plate 36. 38 is a stop plate.

FIG. 6 shows another embodiment in which the stop plate 38 attached to the lower side of the drop port 37 is not included.

FIG. 7 shows a perspective view of FIG. 39 is a grain thrower, 40 is a supply funnel, and 41 is a paddy/rice return gutter.

(effect) Next, we will discuss the effect.

When the raw material paddy is supplied to the loading hopper 1, the raw material paddy flows down and flows into the hulling chamber 2, and is passed through the hulling rolls 3,
3, the rice grains fall on the downflow gutter 5, and flow into the winnowing chamber 4. Inside the wind selection room 4, a suction fan 6
Since the suction air is blown by the action of , the light rice husks are discharged from the discharge port 8 through the discharge pipe 7 . The immature grains move a little with the suction wind and reach the immature grain receiving trough 10.
and is taken out by the conveyor 12. The mixed rice of brown rice and unhulled rice flows into the mixed rice receiving trough 9, and is supplied to the grain thrower 39 by the conveyor 11 on the rice receiving trough 9, and is fed to the grain thrower 39 by the action of the grain frying thrower 39. supplied to

Then, it is supplied from the supply funnel 40 to the horizontal axis rotating sorting tube 16 located above, and is stirred by the rotation of the horizontal axis rotating sorting tube 16. Then, based on a well-known theory, brown rice, which has a heavy specific gravity, sinks to the bottom layer, and unhulled rice, which has a light specific gravity, rises to the top. Therefore, a part of the brown rice that has sunk to the lower layer fits into the pot hole 17 formed on the inner surface of the horizontal rotary sorting tube 16 and is scooped up into the collection receiving trough 18.
The helical conveyor 1 of the collection gutter 18
9, and is supplied from the drop port 42 into the horizontal rotary sorting tube 43 of the horizontal rotary sorting tube 15 located below.

As mentioned above, in the horizontal axis rotary sorting tube 16, brown rice is scooped up through the pot hole 17, but some of the unhulled rice is also scooped up through the pot hole 17, and the unhulled rice remaining in the horizontal axis rotary sorting tube 16 is The rice is discharged from the paddy rice return gutter 41 on the discharge side, returned to the loading hopper 1, and reprocessed.

The mixed rice containing some of the unhulled rice supplied to the horizontal rotary sorting cylinder 43 on the lower stage is scooped up only the sunken brown rice through the pot hole 17, and is transferred to the brown rice collection spiral receiving trough 4.
4, and take it out as finished rice.

However, if more mixed rice than usual is supplied to the supply section 22 side, the rate of rise will be higher, so that not only brown rice but also unhulled rice will be scooped up. Furthermore, if less mixed rice than usual is supplied to the supply section 22 side, the degree of rise is low, so the scooping up of brown rice is low and the efficiency is reduced.

However, in the present invention, the adjustable plates 20 and 21 are attached to the supply section 22 and the discharge section 23 of the horizontal axis rotary sorting tube 16, respectively, so that the attachment angles of the adjustment plates 20 and 21 can be adjusted separately. In addition, a detection plate 25 for detecting the layer thickness of grains is provided in the horizontal axis rotating sorting cylinder 16, and the detection plate 25
5 detects that the layer thickness is large, the collection gutter 18
When the detection plate 25 detects a small layer thickness, the detection plate 25 and the adjustment plate 20 are interlocked and connected so as to increase the area of the recovery gutter 18. Therefore, by interlocking and adjusting the adjustment plate 21 according to the state of the lower layer of sunken grains scooped up by the pot hole 17, good collection can be achieved.

In addition, in the case of FIG. 5, the surface layer of the grains 31 in the supply section 22 is scraped by the scraping plate 36 protruding from the collection receiving trough 18 to the inner surface on the ascending side of the horizontal rotary sorting cylinder 16, as if it were a scraper. It works like this,
The grains in the supply section 22, which tend to be in large quantities, are removed from the discharge section 23.
The grains are averaged to the same level and are well sorted.

In addition, in the case of FIG. 5, since the funnel 33 is provided inside the supply section 22 of the collection gutter 18,
The grains received by the funnel 33 are returned to the return passage 3.
5 and the drop port 37 into the horizontal axis rotary sorting tube 16, so that excess supply in the supply section 22 is further averaged out.

(Effects) Conventionally, countless potholes are formed on the inner circumferential surface of the horizontal axis rotating sorting tube, and a recovery gutter is installed horizontally inside the horizontal axis rotating sorting tube, and the rotation rising side of the horizontal axis rotating sorting tube is It is known that the recovery gutter is provided with an adjustment plate that can adjust the area of the recovery gutter to be large or small.

In the known horizontal axis rotary sorting tube, when the supply amount is large, the proportion of grains that rises to the rotational upward side increases, so even at the same rotation speed, unhulled rice will be mixed into the collecting trough, and the supply amount will increase. If the number of grains is small, the proportion of grains rising on the upward side of the rotation will be small, so even at the same rotation speed, the efficiency of collecting brown rice in the collecting trough will be low.

Therefore, ideal separation can be achieved by automatically adjusting the area of the collection gutter depending on the amount of supply.

However, in the present invention, countless potholes 17 are formed in the inner circumferential surface of the horizontal rotary sorting tube 16, and a recovery gutter 18 is installed horizontally inside the horizontal rotary sorting tube 16. The recovery gutter 18 on the rotation rising side of 16
is provided with an adjustment plate 20 that can adjust the area of the collecting trough 18 to be large or small, and a detection plate 25 for detecting the layer thickness of grain is provided in the horizontal axis rotary sorting cylinder 16, and the detection plate 25 detects the layer thickness of the grain. When the detection plate 25 detects a large layer thickness, the area of the recovery gutter 18 is made small, and when the detection plate 25 detects a small layer thickness, the area of the recovery gutter 18 is made large. A grain sorting device is formed by interlocking and connecting a plate 25 and the adjustment plate 20, and the adjustment plate 20 is provided in the supply section, and the adjustment plate 20 is mounted on a shaft that can adjust the degree of opening and closing. A grain sorting device 21 is provided separately, and a scraping plate 36 is attached to the collection gutter 18 for leveling the surface layer of the grain scooped up through the pot hole 17 formed on the inner surface of the horizontal axis rotating sorting cylinder 16. grain sorting equipment,
Also, since the collecting trough 18 is a grain sorting device in which a passage 35 for returning grains to the horizontal rotary sorting tube 16 is formed, the adjustment plate 21 can be quickly adjusted depending on the amount of grain. Can be automatically adjusted. In addition, since the adjustment plate 21 that can adjust the degree of opening and closing is provided coaxially with the adjustment plate 20, only the necessary parts can be automatically adjusted, so that the operation is light and accurate. In addition, since a scraping plate 36 is attached to the collecting trough 18 for leveling the surface layer of the grains scooped up by the pot hole 17 formed on the inner surface of the horizontal rotary sorting tube 16, the sorting performance is improved. Moreover, since the collection receiving trough 18 is provided with a passage 35 for returning the grains into the horizontal rotary sorting tube 16, efficient sorting can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram explaining the principle of the present invention, Fig. 2 is a longitudinal side view, Fig. 3 is a longitudinal sectional front view of main parts, Fig. 4 is a longitudinal sectional side view of Fig. 3, and Fig. 5 is a second embodiment. FIG. 6 is a diagram of the third embodiment, FIG. 7 is a perspective view of the second embodiment, and FIG. 8 is a diagram of the fourth embodiment. Explanation of symbols 1... Slotting hopper, 2... Husking room, 3... Husking roll, 4... Wind selection room, 5... Downflow gutter, 6... Suction fan, 7... Discharge pipe, 8 ……
Discharge port, 9... mixed rice receiving trough, 10... immature grain receiving trough, 11, 12... screw conveyor, 13... grain sorting section, 14, 15... pothole type sorter, 16... horizontal shaft Rotary sorting tube, 17... pot hole, 18... collection gutter, 19... spiral conveyor, 20... adjustment plate, 2
DESCRIPTION OF SYMBOLS 1... Adjustment plate, 22... Supply part, 23... Discharge part, 24... Protrusion, 25... Detection plate, 26... L
Model lever, 27...Axle stop, 28...Arm, 29
...Axle stop, 30...Spring, 31...Grain, 32...
Surface layer, 33...Funnel, 34...Bottom plate, 35...Return passage, 36...Scraping plate, 37...Drop opening, 38
... Stop plate, 39 ... Fried grain thrower, 40 ... Supply funnel, 41 ... Paddy rice return gutter, 42 ... Drop port, 4
3... Horizontal shaft rotating sorting tube, 44... Brown rice collection spiral receiving trough.

Claims (1)

[Claims] 1. Numerous pot holes 1 on the inner circumferential surface of the horizontal rotary sorting tube 16.
7, and a collection receiving gutter 18 is installed horizontally inside the horizontal axis rotating sorting tube 16, and the recovery receiving gutter 18 is installed on the rotation rising side of the horizontal axis rotating sorting tube 16.
An adjustment plate 20 that can adjust the area of 8 to be large or small is provided,
A detection plate 25 for detecting the layer thickness of the grain is provided in the horizontal axis rotating sorting cylinder 16, and when the detection plate 25 detects a large layer thickness, the area of the collection receiving gutter 18 is made small. A grain sorting device in which the detection plate 25 and the adjustment plate 20 are interlocked and connected so that the area of the collection gutter 18 is increased when the detection plate 25 detects a small layer thickness. 2 Numerous pot holes 1 on the inner peripheral surface of the horizontal axis rotating sorting tube 16
7, and a collection receiving gutter 18 is installed horizontally inside the horizontal axis rotating sorting tube 16, and the recovery receiving gutter 18 is installed on the rotation rising side of the horizontal axis rotating sorting tube 16.
An adjustment plate 20 that can adjust the area of 8 to be large or small is provided,
A detection plate 25 for detecting the layer thickness of the grain is provided in the horizontal axis rotating sorting cylinder 16, and when the detection plate 25 detects a large layer thickness, the area of the collection receiving gutter 18 is made small. In the grain sorting device, the detection plate 25 and the adjustment plate 20 are interlocked and connected so that the area of the collection gutter 18 is increased when the detection plate 25 detects a small layer thickness. Adjustment plate 20
is a grain sorting device, which is provided in the supply section, and a regulating plate 21 that can adjust the degree of opening and closing is separately provided on a shaft on which the regulating plate 20 is fixed. 3 Numerous pot holes 1 on the inner peripheral surface of the horizontal axis rotating sorting tube 16
7, and a collection receiving gutter 18 is installed horizontally inside the horizontal axis rotating sorting tube 16, and the recovery receiving gutter 18 is installed on the rotation rising side of the horizontal axis rotating sorting tube 16.
An adjustment plate 20 that can adjust the area of 8 to be large or small is provided,
A detection plate 25 for detecting the layer thickness of the grain is provided in the horizontal axis rotating sorting cylinder 16, and when the detection plate 25 detects a large layer thickness, the area of the collection receiving gutter 18 is made small. In the grain sorting device, the detection plate 25 and the adjustment plate 20 are interlocked and connected so that the area of the collection gutter 18 is increased when the detection plate 25 detects a small layer thickness. Collection gutter 1
8 is a grain sorting device equipped with a scraping plate 36 for leveling the surface layer of the scooped grains through a pot hole 17 formed on the inner surface of the horizontal axis rotating sorting tube 16; 4 Numerous pot holes 1 on the inner peripheral surface of the horizontal axis rotating sorting tube 16
7, and a collection receiving gutter 18 is installed horizontally inside the horizontal axis rotating sorting tube 16, and the recovery receiving gutter 18 is installed on the rotation rising side of the horizontal axis rotating sorting tube 16.
An adjustment plate 20 that can adjust the area of 8 to be large or small is provided,
A detection plate 25 for detecting the layer thickness of the grain is provided in the horizontal axis rotating sorting cylinder 16, and when the detection plate 25 detects a large layer thickness, the area of the collection receiving gutter 18 is made small. In the grain sorting device, the detection plate 25 and the adjustment plate 20 are interlocked and connected so that the area of the collection gutter 18 is increased when the detection plate 25 detects a small layer thickness. Collection gutter 1
8 is a grain sorting device in which a passage 35 is formed for returning grains to the horizontal rotary sorting cylinder 16;