JPH04290557A - Rice-hulling and screening device - Google Patents

Abstract

PURPOSE:To obtain the rice-hulling and screening device which has high durability and vibrates less. CONSTITUTION:The oscillation screening device constituted by fixing a stationary rubber roll 2 to a stationary revolving shaft 1, fixing a moving rubber roll 4 to a movable revolving shaft 3 provided in the position diagonally below the stationary revolving shaft 1, constituting the moving rubber 4 in such a manner that this roll can move freely in the direction connecting the stationary revolving shaft 1 and the movable revolving shaft 3, energizing this roll by means of a spring 7 so as to bring the roll into elastic contact with the stationary rubber roll 2 at all times, setting the circumferential speed of the stationary rubber roll 2 higher than the circumferential speed of the movable rubber roll 4 and having a square- shaped oscillation screening plate 9 in the position below the rubber roll is provided. The screening plate 9 is high on a supply side H on one side of the front and rear sides thereof and is low on a discharge side L on the other side of the front and rear sides. The inclination angles of the left side X and the right side Y are freely adjustable. Projections 12 higher on the left side X overall are formed on the surface of this plate. A hulled rice take-out port 13 is formed on the left side X on the discharge side L of the screening plate 9 and a hulled rice take-out port 14 is provided on the right side Y of the discharge side L. A mixed rice take-out port 15 is formed in the lateral intermediate position thereof. The screening plate 9 is oscillated horizontally and laterally at about 50mm Width.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice hulling sorting device.

0002

2. Description of the Related Art There are two representative examples of conventionally known rice hulling sorting devices. The first method is described in US Pat. No. 3,857,333, in which a fixed rubber roll is fixed to a fixed rotation shaft, and a movable rubber roll is attached to a movable rotation shaft arranged at the same height right beside the fixed rotation shaft. is fixed, and the movable rubber roll is movable in a horizontal direction connecting the fixed rotation shaft and the movable rotation shaft, and is biased by a spring so as to always be in elastic contact with the fixed rubber roll. The circumferential speed of one of the moving rubber rolls is increased, and above the rubber roll there is a rectangular swinging sorting plate, the supply side of which is high on one side of the front and rear sides, and the discharge side of the other side of the front and back sides of the movable rubber roll is high. The sides are low, the angle of inclination between the left and right sides is adjustable, and the plate surface has protrusions on the entire surface, with a brown rice outlet on the left side of the discharge side and a paddy rice outlet on the right side of the discharge side. , the structure of the hulling sorting device includes a mixed rice take-out port formed at the middle position between the left and right sides of the discharge side, and a swinging sorting device in which the swinging sorting plate is swingable to move diagonally up and down in the left-right direction. be.

[0003] Part 2 is described in US Pat. No. 4,583,645, in which a fixed rubber roll is fixed to a fixed rotating shaft and is moved to a movable rotating shaft provided at a position diagonally below the fixed rotating shaft. A rubber roll is fixed, and the movable rubber roll is movable in a direction connecting the fixed rotation shaft and the movable rotation shaft, and is biased by a spring so as to always be in elastic contact with the fixed rubber roll. The moving rubber roll increases the circumferential speed of one of the rolls,
Above the rubber roll, there is a rectangular swing sorting plate, its front, rear, left and right sides are horizontal, and the plate surface has protrusions all over, with a brown rice outlet on the supply side and an unhulled rice outlet on the discharge side. This is a structure of a hulling sorting device which has no outlet for mixed rice and is equipped with a swinging sorting device which can be horizontally oscillated in the left and right directions.

0004

[Problem to be solved by the invention] Former USP 3, 85
In the device described in the specification of No. 7,333, the fixed rubber roll and the movable rubber roll are provided at approximately the same height and horizontally in the left and right direction, so that the hulled material that has been hulled by both rolls is , since they fall vertically with great force, it is difficult to sort them by wind unless the sorting room is very long vertically.Also, according to experiments, rubber rolls of approximately the same height wear out quickly. The grain is sorted by swinging the oscillating sorting plate diagonally up and down, but since it is difficult to eliminate vibrations when the oscillating sorting plate is swung diagonally up and down, the overall structure becomes surprisingly robust. The problem with diagonally up and down sorting using a swinging sorting plate is that the grains dance on the sorting plate, so the sorting is not very good.

[0005] On the other hand, the latter USP 4, 583, 6
In the case described in the specification of US Pat. No. 45, the fixed rubber roll and the movable rubber roll are arranged diagonally above and below, so the defects of the rubber roll of the US Pat. The sorting board has only a brown rice outlet on the supply side and an unhulled rice outlet on the discharge side.
Since there is no outlet for taking out the mixed rice, there is a problem that the mixed rice remains on the sorting plate. In addition, the vibration frequency and the slight inclination of the sorting plate affect the sorting plates only at the brown rice outlet and the unhulled rice outlet, so even if a sensor is installed and automatic adjustment is made, adjustment is difficult and efficiency is reduced. There is also the problem of not rising. The idea of installing the sorting board horizontally for sorting is that it is difficult to install it horizontally, even on a desk, so that if water spills on it, it will flow in either direction. It seems there was a problem.

[0006]

[Means for Solving the Problems] Therefore, the present invention eliminates the deficiencies of each of the above-mentioned known examples, and fixes a fixed rubber roll 2 to a fixed rotating shaft 1.
A movable rubber roll 4 is fixed to a movable rotary shaft 3 provided diagonally below the movable rubber roll 4, and the movable rubber roll 4 is movable in a direction connecting the fixed rotary shaft 1 and the movable rotary shaft 3, so that it is always connected to the fixed rubber roll 2. The stationary rubber roll 2 is biased by a spring 7 so as to come into elastic contact with each other, and the fixed rubber roll 2 has a faster circumferential speed than the movable rubber roll 4. A rectangular swinging sorting plate 9 is located below the rubber roll. The supply side H on one side of the front and rear sides is high, the discharge side L on the other side of the front and rear sides is low, and the inclination angle between the left side A brown rice outlet 13 is formed on the left side The rice hulling sorting device is equipped with a swinging sorting device that has a width of about 50 mm and can freely swing horizontally and horizontally, as well as a fixed rubber roll 2 fixed to a fixed rotating shaft 1 and an oblique section of the fixed rotating shaft 1. Hulling section 21 having a movable rubber roll 4 fixed to a movable rotation shaft 3 provided at a lower position
, a supply elevator 19 that supplies unhulled rice to the hulling section 21 , a wind selection section 23 provided adjacent to the hulling section 21 , and a wind selection section 23 located below the hulling section 21 and the wind selection section 23 . The oscillating sorting device provided, the several stages of rectangular oscillating sorting plates 9 forming the oscillating sorting device, the supply side H formed on one side of the front and rear sides of the oscillating sorting plates 9, and the above-mentioned A discharge side L lower than the supply side formed on the other front and rear sides of the swinging sorting plate 9, a pivoting mechanism 10 formed on either the left or right side of the swinging sorting plate 9, and the swinging A vertical movement mechanism 11 formed on either the left or right side of the sorting plate 9, a brown rice outlet 13 formed on the left side X of the discharge side L, and an unhulled rice outlet 14 formed on the right side Y of the discharge side L. , a mixed rice outlet 15 formed at the middle position between the left and right sides of the discharge side L, a group of 12 protrusions provided on the plate surface with the left side X higher, and the swinging sorting plate 9 horizontally with a width of about 50 mm. and a swing mechanism for swinging in the left-right direction, a return elevator 27 for returning the mixed rice taken out from the mixed rice take-out port 15 to the swing sorting plate 9, and a supply of unhulled rice taken out from the unhulled rice take-out port 14. The hulling and sorting device is comprised of a flow path for returning to the grain elevator 19, and a finished rice elevator 28 for moving the brown rice taken out from the brown rice outlet 13 to the next process.

[0007]

[Example] An example of the present invention will be explained with reference to the drawings.
1 is a fixed rotating shaft, 2 is a fixed rubber roll that is fixed to the fixed rotating shaft 1, 3 is a moving rotating shaft, 4 is a moving rubber roll that is fixed to the moving rotating shaft 3, and 5 is located at an upper position of the moving rotating shaft 3. The provided support shaft 6 is a swing arm whose upper end is fixed to the support shaft 5 and whose lower end is attached to the movable rotation shaft 3.

The movable rotary shaft 3 is located diagonally below the fixed rotary shaft 1, and a line connecting the fixed rotary shaft 1 and the movable rotary shaft 3,
The line connecting the moving rotation shaft 3 and the support shaft 5 is made to be approximately at right angles. The movable rubber roll 4 is biased by a spring 7 so as to elastically contact the fixed rubber roll 2. Numeral 8 is unhulled rice, which is fed obliquely between the fixed rubber roll 2 and the moving rubber roll 4, and is discharged to the opposite side.

[0009] 9 is a swinging sorting plate that separates the rice grains;
It has a rectangular shape, the supply side H is high, the discharge side L is low, the left side X is slightly higher than the left side X, and only the inclination angle of the left and right sides is adjustable. That is, the vertical adjustment is performed centering on one shaft attachment mechanism 10 using the other vertical adjustment mechanism 11.

The plate surface of the swinging sorting plate 9 has protrusions 1 all over the surface.
2 is formed. The protrusion 12 faces the left side X, and also faces the supply side H (that is, it is somewhat oblique).
3, a paddy rice outlet 14 is formed on the right side Y thereof, and a mixed rice outlet 15 is formed in the middle between the left and right sides thereof. Reference numeral 16 denotes a partition plate between them, and the partition plate 16 is adjustable in the left-right direction.

The swinging sorting plate 9 is capable of swinging horizontally from side to side. The amplitude of vibration is not as small as 5 mm or 10 mm, but is preferably about 50 mm. That is, the swinging sorting plate 9 is horizontally reciprocated in the left-right direction with a shaking sensation. The method is simple; it is supported by a vertical swinging support 17 and swung by a cam (crank) 18. When the swing width is within the above range, even if the swinging support rod 17 swings in an arc, there is almost no effect of the arc-shaped movement, and the appearance is as follows.
It is a horizontal linear swing.

[0012] The main points of the present invention are as described above, and the key point of the invention is that hulling is performed using diagonal upper and lower rolls, and separation of unhulled rice, brown rice, and mixed rice into three types is performed using horizontal rocking. Experiments have shown that hulling using diagonal upper and lower rolls causes 30% less wear on the rolls, so there is no need to replace them over a long period of time, and the size of the winnowing room can be small. Separation of unhulled rice, brown rice, and mixed rice by horizontal shaking allows for good sorting without dancing because the grains are simply shaken sideways, and because there is little vibration, the overall structure does not need to be bulky. Therefore, when used as an overseas product, outstanding effects can be expected.

FIG. 3 shows a specific embodiment, in which 19 is a supply elevator, 20 is a supply hopper of the supply elevator 19, and 2
1 is a hulling section, 22 is a supply tank attached to the top of the hulling section 21, and 23 is a winnowing chamber installed next to the hulling section 21, and the paddy hulls in the windsensing chamber 23 are sucked by a blower 24. removed. 2
5 is a flow plate provided at the bottom of the wind selection chamber 23. The oscillating sorting plates 9 are usually stacked in eight stages, and a distribution device 26 that reaches each stage of the oscillating sorting plates 9 is provided on the left side X. The mixed rice discharged from the outlet 15 is returned onto the flow plate 25 by a return elevator 27 and is reprocessed. The brown rice from the brown rice outlet 13 is supplied to the finished rice elevator 28.

[0014]

[Effect] Next, the effect will be described. When unhulled rice is put into the supply hopper 20, the supply elevator 19 is raised to the supply tank 22.
It is stored in the supply tank 22 and supplied between the fixed rubber roll 2 and the movable rubber roll 4 in the hulling section 21. The fixed rubber roll 2 and the movable rubber roll 4 are arranged diagonally above and below, and the movable rubber roll 4 is movable rather than the fixed rubber roll 2, so it is easy to move the rubber roll, and there is less wear on the rubber. The rice is hulled well. In the wind selection chamber 23, the rice husks are removed and fall onto several stages of flow plates 25. From the flow plate 25, it flows into the distribution device 26,
The rice is uniformly supplied to the oscillating sorting plates 9 of each stage, and then supplied to the left X side of the supply side H as shown in FIG. 1, and then separated into three types: brown rice, unhulled rice, and mixed rice.

At this time, the oscillating sorting plate 9 is shaken with a vibration width of about 50 mm, so no grain dancing phenomenon is observed, and the heavy brown rice is moved to the left X side by the action of the protrusion 12. The light unhulled rice is leveled and distributed on the right Y side, and the unseparated mixed rice is distributed in the middle.Brown rice is taken out from the unseparated rice outlet 13, mixed rice is taken out from the mixed rice outlet 15, and unhulled rice is taken out from the unseparated rice outlet 15. They are each taken out from the outlet 14.

The brown rice taken out from the brown rice take-out port 13 flows into the finished rice elevator 28, the mixed rice from the mixed rice take-out port 15 is returned to the flow plate 25 by the return elevator 27, and the unhulled rice at the unhulled rice take-out port 14 is supplied. It is returned to the supply tank 22 by the elevator 19.

[0017]

[Effect of the invention] The purpose of the present invention is to provide a highly durable
It was developed with the aim of being a product with little vibration and for overseas markets.A fixed rubber roll 2 is fixed to a fixed rotating shaft 1, and a movable rotating shaft 3 provided at a position diagonally below the fixed rotating shaft 1 is attached to a fixed rubber roll 2. A movable rubber roll 4 is fixed, and the movable rubber roll 4 is movable in the direction connecting the fixed rotation shaft 1 and the movable rotation shaft 3, and is attached by a spring 7 so as to be in elastic contact with the fixed rubber roll 2 at all times. Since the fixed rubber roll 2 has a faster peripheral speed than the movable rubber roll 4, hulling is carried out by the diagonally up and down rubber rolls, so as mentioned above, it can be used for a long time with less wear, and the hulled material is also discharged diagonally. Therefore, the wind selection section can be placed in a small size next to the rubber roll. In addition, the square-shaped swinging sorting plate 9 is
The supply side H on one side of the front and rear sides is high, the discharge side L on the other side of the front and back sides is low, and the inclination angle between the left side X and the right side Y is adjustable, and the left side A brown rice outlet 13 is formed on the left side X of the discharge side L, an unhulled rice outlet 14 is formed on the right side Y of the discharge side L, and
Since the mixed rice outlet 15 is formed at the middle position between the left and right sides, it is ideal to separate the rice into three types: paddy rice, brown rice, and mixed rice, and the sorting plate 9 has a width of about 50 mm and can freely swing horizontally and horizontally. Therefore, it has the characteristic that grains can be separated quietly and efficiently without any dancing.

Further, in the second claim, a hulling section 21 has a fixed rubber roll 2 fixed to a fixed rotation shaft 1 and a movable rubber roll 4 fixed to a movable rotation shaft 3 provided diagonally below the fixed rotation shaft 1. , a supply elevator 19 for supplying unhulled rice to the hulling section 21 , a wind selection section 23 provided adjacent to the hulling section 21 , the hulling section 21 and the wind selection section 23
A swinging sorting device provided at a lower position, a several-stage square-shaped swinging sorting plate 9 forming the swinging sorting device, and a supply side formed on one side of the front and rear sides of the swinging sorting plate 9. H, a discharge side L lower than the supply side formed on the other front and rear sides of the swinging sorting plate 9, and a pivoting mechanism 10 formed on either the left or right side of the swinging sorting plate 9. , a vertical movement mechanism 11 formed on either the left or right side of the swing sorting plate 9, a brown rice outlet 13 formed on the left side X of the discharge side L, and a brown rice outlet 13 formed on the left side X of the discharge side L;
an unhulled rice outlet 14 formed on the right side Y, a mixed rice outlet 15 formed at the middle position between the left and right sides of the discharge side L, a group of 12 protrusions provided on the plate surface with the left side X higher, and the rocking sorter. Board 9
a swinging mechanism that swings horizontally and horizontally with a width of about 50 mm, a return elevator 27 that returns the mixed rice taken out from the mixed rice take-out port 15 to the swing sorting plate 9, and the unhulled rice take-out port. The hulling and sorting device is made up of a flow path for returning the unhulled rice taken out from the brown rice outlet 14 to the feeding elevator 19, and a finished rice elevator 28 for moving the brown rice taken out from the brown rice take-out port 13 to the next process, making it compact and rational. The structure makes it possible to provide products that are easy to handle, and has the effect of making it possible to manufacture products for overseas export with less trouble at a low cost.

[Brief explanation of the drawing]

[Fig. 1] Front view of main parts.

FIG. 2 is a schematic front view of the swinging sorting device.

[Fig. 3] Overall longitudinal sectional front view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1... Fixed rotating shaft, 2... Fixed rubber roll, 3... Moving rotating shaft, 4... Moving rubber roll, 5... Support shaft, 6... Swinging arm, 7... Spring, 8... Paddy rice, 9... Swinging sorting plate, 10... Shaft, 11...adjustment mechanism, 12...protrusion, 13...brown rice outlet, 14...unhulled rice outlet, 15...mixed rice outlet, 16...partition plate, 17...swing support rod, 18...cam, 19...for supply Elevator, 20... Supply hopper, 21... Hulling section, 22... Supply tank, 23... Wind selection room, 24... Blower, 25... Flow plate, 26... Distribution device, 27
... Return elevator, 28... Finishing rice elevator.

Claims (2)

[Claims] 1. A fixed rubber roll 2 is fixed to a fixed rotation shaft 1, a movable rubber roll 4 is fixed to a movable rotation shaft 3 provided diagonally below the fixed rotation shaft 1, and the movable rubber roll 4 is attached to the fixed rotation shaft 1. 1 and the movable rotation shaft 3, and is biased by a spring 7 so as to always be in elastic contact with the fixed rubber roll 2. At the lower position of the rubber roll, there is a rectangular swing sorting plate 9, the supply side H on one side of the front and rear sides is high, the discharge side L on the other side of the front and rear sides is low, the left side X and the right side The inclination angle with respect to Y is adjustable, and a projection 12 that is higher on the left side X is formed on the entire board surface, and a brown rice outlet 13 is formed on the left side X of the discharge side L.
, a hulled rice outlet 14 is formed on the right side Y of the discharge side L, a mixed rice outlet 15 is formed at the middle position between the left and right of the discharge side L, and the swinging mechanism is capable of swinging horizontally and horizontally with a width of about 50 mm. A rice huller sorting device equipped with a sorting device. 2. Hulling section 2 comprising a fixed rubber roll 2 fixed to a fixed rotation shaft 1 and a movable rubber roll 4 fixed to a movable rotation shaft 3 provided diagonally below the fixed rotation shaft 1.
1, and a supply elevator 19 for supplying unhulled rice to the hulling section 21.
, a wind sorting section 23 provided adjacent to the hulling section 21, and a swinging sorting device provided below the hulling section 21 and the wind screening section 23, forming the swinging sorting device. A rectangular oscillating sorting plate 9 with several stages, a supply side H formed on one side of the front and rear sides of the oscillating sorting plate 9, and the supply side H formed on the other side of the front and rear sides of the oscillating sorting plate 9. A shaft mounting mechanism 10 formed on either the left or right side of the swinging sorting plate 9 and the discharge side L lower than the side L.
, a vertical movement mechanism 11 formed on either the left or right side of the swing sorting plate 9, a brown rice outlet 13 formed on the left side X of the discharge side L, and a brown rice outlet 13 formed on the right side Y of the discharge side L. a mixed rice outlet 15 formed at the middle position between the left and right sides of the discharge side L; a group of 12 protrusions provided on the board surface with the left side X higher than the other; a swinging mechanism that swings the mixed rice horizontally and in the left-right direction with a width of A hulling and sorting device comprising a flow path for returning the unhulled rice to the supply elevator 19, and a finished rice elevator 28 for moving the brown rice taken out from the brown rice outlet 13 to the next process.