JPS5953112B2 - Grain rocking specific gravity sorting device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a grain shaking specific gravity sorting device.

The oscillating specific gravity sorting device is a sorting device that moves a sorting plate with a rough surface in diagonal up and down reciprocating motion, thereby distributing and extracting grains according to the difference in specific gravity. There are two types of sorting plates: those that utilize wind power and those that do not utilize wind power.

In a blind plate-type oscillating sorting device that does not use wind power, the specific gravity difference separation is solely due to the stirring action, so it is difficult to separate many types, but in a sorting device that uses wind power, the oscillating motion Since the flotation effect is added, it is possible to finely separate rice into, for example, right shoulder rice, brown rice, waste rice, and unhulled rice.

For example, the right shoulder is distributed on the swinging side of the perforated plate, and the waste rice is distributed on the swinging side of the perforated plate and flows to the discharge side. However, when looking at the part on the swinging side where waste rice is distributed, the amount of waste rice is very small, so the waste rice flows mixed with a large amount of unhulled rice, and cannot be clearly distinguished.

Therefore, in the present invention, the perforated plate near the shaking side is formed into a waste rice sieving plate, so that unhulled rice and waste rice are separated by size rather than by specific gravity difference.

To explain with a diagram, 1 is a wind turbine case with a wind turbine 11 inside.
is mounted on the shaft, and an air outlet 2 is opened at the top.

12 and 14 are left and right side walls of the wind turbine case 1, 13 and 15
are also the front and rear side walls.

A perforated plate 3 for sorting is placed on the upper surface of the air outlet 2 of the wind turbine case 1. The perforated plate 3 has a supply side 4 on one side and a discharge side 4 on the other side, and the supply side 5 is tilted higher, and one side on the left and right sides is a swinging side 6', and the other side is a swinging side 6', and the other side is a swinging side 6'. is high<sloped. The perforated plate 3 performs an oblique up-and-down reciprocating motion W from the lower swinging side 6 to the upper swinging side 6', and 22 is an eccentric wheel of the swinging device, and 28 is its rod. The perforated plate 3 has diagonal rods 10, 10
Supported by Reference numeral 7 denotes an adjustment frame, in which the ends 8 of the left and right rods 17, 17 are fixed to a shaft 9 protruding from the case 1 side, and the vertical position is adjusted with an adjustment screw 16, and the lower ends of the diagonal rods 10, 10 are attached to the adjustment frame. It is fixed at 7.

A waste rice sieving plate 20 is attached to the swinging side 6 of the perforated plate 3 from the supply side 5 to the discharge side 4.

A long hole 18 is formed in the sieving plate 20 to prevent good grains from passing through but to allow waste rice to pass therethrough, and a net 29 is stretched below the hole 18 to house balls 30. In the figure, 19 is a blowhole, 21
is a cover, 23 is a motor, 24 is a window, 25 is a diffuser plate,
26 is a partition plate, 27 is a funnel, and 31 is a gutter.

Since the present invention has the above-described configuration, when the raw rice is made to flow down from the funnel 27, the raw rice falls onto the diffusion plate 25 at the corner of the supply side 5 and the shaking side 6 as shown by the arrow in FIG. Grain (unhulled rice), which is diffused by the reciprocating movement in the direction of the arrow W and has a light specific gravity, is distributed on the shaking side 6 as shown by the arrow C and taken out from the discharge side 4.

Unseparated grains (mixed grains of brown rice and paddy) flow slightly toward the center as shown by arrow D, and grains with high specific gravity (brown rice) are distributed on the shaking side 6'' as shown by arrow E and are discharged from discharge side 4. However, the sorting air from the windmill 11 is removed from the perforated plate 3.
As the air blows up from the blowhole 19, the separation performance becomes even more active, and as a result, immature grains such as scrap rice that are difficult to separate are separated, and they flow to the discharge port 4 along the swinging side 6 as shown by arrow F. However, as described above, since uncracked rice having a light specific gravity is distributed on the shaking side, a portion of the waste rice is taken out from the discharge side 4 in a state mixed with the husk rice. In this case, in the present invention, a waste rice sieving plate 20 is attached in the vicinity of the swinging side 6 in a band shape extending from the supply side 5 to the discharge side 4, and the sieving plate 20
0 is formed with a long hole 18 that does not allow good grains to pass through, but allows scrap rice to pass through, so the scrap rice falls through the long hole 18, passes through the net 29, and enters the drain 3]. It is something that is taken out. Therefore, it is possible to prevent waste rice from being mixed into unhulled rice. Among the conventionally known oscillating specific gravity sorting devices, those that do not use wind power cannot effectively distribute the waste rice mixed in the raw materials to specific areas, so this method is Although it was not possible to separate the rice by sieving, using a swing-type specific gravity sorting device that utilizes wind power improves the separation performance, so that the waste rice is mainly distributed on the swinging side.

Therefore, there is a risk that the waste rice may be mixed into the unhulled rice distributed on the shaking side. However, in the present invention, the swinging side 6
A scrap rice sieving plate 20 is attached to the C line portion where the unhulled rice flows, which has long holes 18 that do not allow good grains to pass through but allow scrap rice to pass through, so the scrap rice is separated by the long holes 18. It is something that can be done. In addition, since the sieving plate 20 is attached to the swinging lower side 6, it has an integral structure with the swinging perforated plate, and therefore the sieving action is carried out in the swinging state, so the waste rice sorting is remarkable. It has characteristics that can be used to

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view, FIG. 2 is a perspective view of the wind turbine case, FIG. 3 is a perspective view of a perforated plate, and FIG. 4 is a sectional view taken along line A-A. Explanation of symbols, 1... Wind turbine case, 2... Air outlet, 3
...Perforated plate, 4...Discharge port, 5...Supply side, 6.
... Swinging lower side, 6"... Swinging upper side, 7... Adjustment frame, 8.
... End, 9 ... Shaft, 10 ... Diagonal rod, 11 ... Windmill, 12, 14 ... Left and right side walls, 13, 15 ... Front and rear side walls, 16 ... Adjustment screw, 17 ...Left and right rods, 18.
...long hole, 19...blow hole, 20...waste rice sieve plate,
21... Cover, 22... Eccentric wheel, 23... Motor 24... Window, 25... Diffusion plate, 26... Partition plate, 27... Funnel, 28... Rod, 29...
Net, 30... Ball, 31... Gutter.

Claims (1)

[Claims] 1. On the swinging side of the swinging perforated plate, the other side of the swinging perforated plate is inclined in two directions, with the other side of the discharge side being lower than the one side of the supply side, and the other side of the swinging side being lower than the one side of the swinging up side on the left and right sides perpendicular to this side. A grain oscillating specific gravity sorting device that is equipped with a waste rice sieve plate that is strip-shaped from the supply side to the discharge side.