JPH0135711B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a swing-type sorting device for unhulled rice and brown rice.

(Prior art) Conventionally, the shape of the sorting plate A when viewed from above is approximately square.
One side of the front and back sides of the sorting plate A is a supply side, the other side of the front and back is a discharge side, one side of the left and right sides is a swinging side E, and the other side of the left and right sides is a non-swinging side F, and the sorting board A has a discharge side lower than the supply side and is tilted in the front-rear direction, and the left and right sides of the sorting plate A are tilted horizontally with the non-rocking side F being lower (Figs. 1 and 2), so that the discharge side and the rocking side are The side E and the non-swinging side F are provided with side walls that stand up at approximately right angles, and a protrusion D (FIG. 3) is formed on the plate surface of the sorting plate A with the swinging side E being high. A swing-type sorting device for unhulled rice and brown rice equipped with a tilting reciprocating device in the W direction is known. In addition, I is the supply hopper, J
is an underframe, and the sorting plate A is pivotally fixed to the underframe J by swinging support rods K, K, which are inclined and have the same length, and are swung in the W direction by an eccentric wheel H. (In addition, Tokuko Akira
34-8353 and Japanese Unexamined Patent Publication No. 49-84849 belong to this category.) In addition, the conventionally known Japanese Utility Model Publication No. 17097-1987 includes the following:
The shape of the sorting plate when viewed from above is approximately square; one side of the front and back sides of the sorting plate is the supply side, the other side of the front and back is the discharge side, one side of the left and right sides is the rocking side, and the other side of the left and right side is the non-receiving side. The discharge side of the sorting plate is lower than the supply side and is inclined in the front and back direction, and the left and right sides of the front and rear sorting plates are horizontal, and the supply side, the shaker side, and the non-rocker side are approximately perpendicular to each other. The sorting plate has a side wall that stands up, the plate surface of the sorting plate is a mesh, and the sorting plate has a side wall that is fast when moving toward the swinging side and slow when moving toward the non-swinging side. A swing-type sorting device for unhulled rice and brown rice is described, which is equipped with a moving horizontal reciprocating device.

Furthermore, Japanese Patent Publication No. 44-13969 describes a device for swinging in the direction of grain discharge.

(Problems to be Solved by the Invention) Figures 1 and 2 (same as in Japanese Patent Publication No. 34-8353 and Japanese Patent Application Laid-open No. 49-84849) are as follows:
The defect is that it tilts back and forth in the direction of the W arrow.

In the case of Figures 1 and 3, when rocking back and forth in the direction of arrow W, brown rice group B gathers on the rocking side E, and unhulled rice G group gathers on the non-rocking side F, due to the difference in specific gravity. The two are separated from each other. In FIG. 1, only brown rice B is distributed in the range shown as m, a mixture of unhulled rice G and brown rice B is distributed in the range shown as m1, and unhulled rice G is distributed in the range shown as m2.

The defect in FIGS. 1 and 2 is that they perform diagonal upward and downward reciprocating motion in the direction of the W arrow. This is because the size of the sorting board is small, but it is 1 m long and wide, and it is stacked in five or more stages, so the total amount of grain on the sorting board A is at least 30 kg.
When this is moved up and down diagonally, considerable vibration occurs.

The one disclosed in Utility Model Publication No. 46-17097 is equipped with a horizontal reciprocating device that is faster when the sorting plate moves toward the rocking side and slower when it moves toward the non-rocking side, so the rocking is reduced. Horizontal and in Figures 1 and 2
This solves the defect of the tilt swing shown in the figure, but the plate surface is a mesh point.The quick return is fast when the sorting board moves toward the swing side, and slow when it moves toward the non-swing side. Due to the configuration of the horizontal reciprocating device, the sorting action is defective. Sorting cannot be done just by combining the net and quick-return mechanism, and immediately after being fed from the supply hopper, the sorting plate is moved quickly to the rocking side (brown rice side), and the plate surface is Therefore, there is slippage between the grain and the board surface, and it is almost impossible to move the grain to the rocking side (brown rice side). As a result, it is not possible to shake the brown rice, which is essential for sorting. If brown rice cannot be shaken, it is not possible to separate the specific gravity of unhulled rice. In addition, since the sorting board is moved slowly to the non-rolling side (unhulled rice side), there is little slippage between the grains and the board surface, allowing the brown rice to return to its original state. Therefore, it is unenforceable.

Furthermore, the device disclosed in Japanese Patent Publication No. 44-13969 is a device that swings in the direction of grain discharge (in the present application, swings in a direction perpendicular to the direction of grain discharge), and therefore cannot perform specific gravity selection.

(Means for Solving the Problems) However, the latter fast return reciprocating swing can also be implemented with the following configuration, resulting in good sorting. This is to form a protrusion on the plate surface that is higher on the rocking side and gradually lower on the non-rocking side.

The quick return is slow when the sorting plate moves toward the rocking side, and fast when it moves toward the non-rocking side (contrary to the known example).When the sorting plate 1 reaches the rocking side, it returns quickly. Let it lift.

It is a combination of the following.

Therefore, in the present invention, the sorting plate 1 has a generally rectangular shape when viewed from above, one side of the front and rear sides of the sorting plate 1 is a supply side 2, the other side of the front and rear sides is a discharge side 3, and one side of the left and right sides is a swinging side. The picking side 5 and the other left and right sides are non-swinging sides 6, and the sorting plate 1 has the discharge side 3 lower than the supply side 2 and tilting in the front-rear direction, and the left and right sides of the sorting plate 1 are horizontal or swinging side 6. The non-rocking side 6 has a lower left and right slope than the side 5,
The supply side 2, the swinging side 5, and the non-swinging side 6 are provided with side walls 4 that stand up at approximately right angles, and on the plate surface of the sorting plate 1, the swinging side 5 is high and the non-swinging side 6 is gradually rising. A horizontal reciprocating device is formed on the sorting plate 1 and moves slowly when the sorting plate 1 moves toward the rocking side 5 and quickly when moving toward the non-rocking side 6. This is a swing type sorting device for unhulled rice and brown rice, in which the swinging support rod 12 on the rocking side 5 is long and the swinging support rod 13 on the non-rocking side 6 is short.

(Example) An example of the present invention will be described with reference to the drawings.
is a sorting board. The sorting plate 1 is made of a thin metal plate, synthetic resin, or the like. The sorting plate 1 has a substantially rectangular shape when viewed from above. The sorting plate 1 has one front and rear side as a supply side 2, the other side as a discharge side 3, one side of the left and right sides as a rocking side 5, and the opposite side as a non-rocking side 6, and the discharge side 3 is for taking out grains. Although not attached to the feed side 2, the rocking side 5, and the non-rocking side 6, side walls 4 projecting upward are provided on the supply side 2, the rocking side 5, and the non-rocking side 6 to prevent the grains from spilling outside. As shown in FIG. 5, an inclined protrusion 7 is formed on the surface of the sorting plate 1, which is higher on the swinging side 5 and gradually lower on the non-swinging side 6. 26 is an inclined surface, and 27 is a vertical surface.

A supply hopper 8 is provided at an upper position on the supply side 2 of the sorting plate 1. The supply hopper 8 is on the rocking side 5
I may send it to you. Although the sorting plate 1 of the embodiment is shown in only one stage, it is free to form it in multiple stages. In the case of a multi-stage system, a distribution device is installed to distribute food evenly from the supply hopper 8 to the multi-stage sorting plates 1. Sorting board 1
is lower on the discharge side 3 and has a discharge flow angle β (FIG. 10). This discharge flow angle β is not an angle at which the grains are naturally rolled and discharged, but is an angle at which the grains are discharged while maintaining a layered structure by reciprocating in the left and right direction. The discharge flow angle β is adjustable.

The left and right sides of the sorting plate 1 are horizontal or horizontally inclined with the non-swinging side 6 being lower than the swinging side 5.

However, a frame 9 is provided below the sorting plate 1 with a vertical interval therebetween. On the underframe 9,
Bearings 10 and 11 are provided on the left and right sides (9th
(Fig.), the lower ends of the swinging supports 12, 13 are supported by bearings 10, 11, respectively, and bearings 14, 15 are provided on the lower surface of the sorting plate 1.
Each upper end of 13 is pivoted. bearing 10,
11 is provided in pairs at the front and rear as shown in FIGS. 9 and 10, so the underframe 9 and the sorting plate 1 are made up of a total of four swing supports 12, 12 and swing supports 13, 13. You will be supported.

One end of a rod 17 is fixed to a longitudinal shaft 16 which fixes the bearing 14 and the upper end of the swing support 12, and the other end of the rod 17 is fixed to the tip of a clamp 18. The clamp 18 is fixed to a driving shaft 19, and a pulley 20 is fixed to the driving shaft 19 (FIG. 10). In this case, the position of the driving shaft 19 and the relationship between the rod 17 and the like are such that when the sorting plate 1 moves in the direction of the non-rocking side 6, it is fast;
When the sorting plate 1 moves toward the rocking side 5, a quick return mechanism (opposite to the above-mentioned known example) is used to move slowly. The forward motion is slowed down and the entire grain is shaken as it is,
They move quickly so that they can leave behind the shaken grains.

11 and 12 show an arrangement in which the sorting plate 1 is lifted up when the sorting plate 1 moves in the direction of the rocking side 5. The mechanism is simple, the swinging supports 12, 12 on the swinging side 5 are long, and the swinging supports 13, 13 on the non-swinging side 6 are short.

In the figure, 21 is an unhulled rice outlet, 22 is a brown rice outlet,
23 is a mixed rice outlet.

(effect) Next, we will discuss the effect.

When the mixed rice of unhulled rice G and brown rice B is dropped and fed from the supply hopper 8 to the supply side 2 of the sorting plate 1 and the pulley 20 is rotated by the motor, the driving shaft 19 rotates and the driving shaft 19 is rotated as shown in FIG. The shaft 19 rotates to the left in the order of A→B→C→N→A. Then, when the crank 18 whose base is fixed to the driving shaft 19 is in the position A, the rod 17 is at the maximum extension position, but when the crank 18 rotates to the position B, the swing support rod 12 is When it becomes vertical and further rotates to position C, the swinging support is tilted to the right to the maximum. Then, when you return to position A after passing through position D,
The swing support rod 12 returns to its original position, but in this case, the rotation angle from A to C, which is the backward movement, is smaller than the rotation angle from H to A, which is the forward movement, so the swing support rod 12,
13, the sorting plate 1 moves toward the rocking side 5.
When moving towards the non-rocking side 6, it moves slowly, and when moving towards the non-rocking side 6, it moves quickly. In addition, in the case of FIGS. 11 and 12, the swing support rod 12 on the swing side 5,
12 is long, and the swinging supports 13, 13 on the non-swinging side 6 are short, so when the sorting plate 1 moves in the direction of the swinging side 5, the sorting plate 1 is lifted up, and the first
Move as shown in Figures 3 to 18 to remove unhulled rice G and brown rice B.
It separates the

(Explanation of FIGS. 13 and 14) The state immediately after being supplied from the supply hopper 8 is as shown in FIG. In this state, the sorting plate 1
The left and right sides of the non-swinging side 6 have a lower left-right inclination α than the swinging side 5, and if the left-right inclination α is adjusted, when the sorting plate 1 moves slowly in the direction of the swinging side 5, the sorting plate 1 moves slowly, so there is almost no slippage between the grain and the plate surface, and since the protrusion 7 has a high rocking side 5, the resistance is strong, especially for grains that are in contact with the plate surface.
When the sorting plate 1 is carried in the 5 directions of the cradle side and the grading plate 1 stops at the cradle side 5, the grains tend to lean toward the cradle side 5 due to inertia, and the cradle side 5 forms a high pile.
At this time, the swinging supports 12, 12 on the swinging side 5 are long, and the swinging supports 13, 13 on the non-swinging side 6 are short, so when moving in the direction of the swinging side 5, the sorting plate 1 It is lifted up, and the specific gravity separation of unhulled rice G and brown rice B is performed (the state shown in Fig. 14).

(Explanation of FIGS. 14 and 15) When the sorting plate 1 returns from the swinging side 5 to the non-swinging side 6, it moves quickly. Because the sorting plate 1 moves quickly and the protrusions 7 are low on the non-cracking side 6, slippage occurs between the grains and the plate surface, and the lower grain remains on the shaking side 5, clogging. Only the sorting plate 1 attempts to go to the non-rocking side 6, leaving the mountain behind. At this time, the unhulled rice G, which has floated to the upper layer due to its specific gravity, collapses due to the vibration and slides down the slope of the mountain, along with the brown rice B, and moves in six directions on the non-rocking side (the state shown in Fig. 15).

(Explanation of FIGS. 15 and 16) This is the same as in the case of FIG. 14, but since there is more brown rice B in the lower layer, if the sorting plate 1 moves slowly in the 5-way direction on the rocking side, the sorting Because the movement of the board 1 is slow and the protrusions 7 are facing in the 5-way direction on the rocking side, there is resistance, so there is no slippage between the brown rice B and the board surface, and the brown rice B, together with the sorting board 1, moves in the 5-way rocking side. Take it with you. Since the brown rice B and unhulled rice G in the upper layer are not in contact with the board surface, the proportion of them being carried in the five directions on the rocking side is small.

(Explanation of FIGS. 16 to 17) Same as the case of FIG. 15, but the sorting plate 1
When the rice B moves quickly in the direction 6 on the non-rolling side, because the sorting plate 1 moves quickly and the protrusion 7 is lower on the non-rolling side 6, the brown rice B and the board surface slip, causing the brown rice B to be shaken. Only the sorting plate 1 is moved to the non-rocking side 6 while being placed on the side 5. At this time, the upper layer of unhulled rice G slides down the slope of the mountain due to the vibration and moves to the non-rocking side 6. When this state is repeated, the unhulled rice G also comes into contact with the board surface.

(Explanation of FIGS. 17 to 18) Since the rocking continues without interruption,
Since the separated unhulled rice G is also in contact with the plate surface, it is shaken, but the contact resistance of the unhulled rice G with respect to the plate surface is smaller than that of brown rice B. Therefore, the unhulled rice G is not mixed with the brown rice B again.

(Effects) Conventionally, since FIGS. 3 and 5 (the same as those in Japanese Patent Publication No. 34-8353 and Japanese Patent Application Laid-open No. 49-84849) are tilted oscillations, vertical vibrations occur.
In this regard, the one disclosed in Publication No. 17097/1986 is a horizontal oscillation, but the plate surface is a mesh point. A horizontal reciprocating device that is slow when moving towards.

is defective. In other words, it is not possible to sort the rice by just combining the net and the quick-return mechanism, and the sorting plate is moved quickly to the rocking side (brown rice side) immediately after being fed from the supply hopper, and the plate surface is Since it is a net, there is slippage between the grain and the board surface, making it almost impossible to bring the grain to the rocking side (brown rice side). As a result, it is not possible to shake the brown rice, which is essential for sorting. If brown rice cannot be shaken, it is not possible to separate the specific gravity of unhulled rice.
In addition, since the sorting board is moved slowly to the non-rolling side (unhulled rice side), there is little slippage between the grains and the board surface, allowing the brown rice to return to its original state. Therefore, it is unenforceable. Also, special public service 13969-13969
Since the device disclosed in the publication is a device that swings in the grain discharge direction (in the present application, the device swings in a direction perpendicular to the grain discharge direction), specific gravity selection cannot be performed.

However, in the present invention, the shape of the sorting plate 1 when viewed from above is substantially rectangular, one side of the front and rear sides of the sorting plate 1 is a supply side 2, the other side of the front and back is a discharge side 3, and one side of the left and right sides is a swinging side. The picking side 5 and the other left and right sides are non-swinging sides 6, and the sorting plate 1 has the discharge side 3 lower than the supply side 2 and tilting in the front-rear direction, and the left and right sides of the sorting plate 1 are horizontal or swinging side 6. The non-swinging side 6 has a lower left-right slope than the side 5, and the supply side 2, the swinging side 5, and the non-swinging side 6 are provided with side walls 4 standing approximately at right angles, and the plate surface of the sorting plate 1 is A protrusion 7 is formed which is higher on the swinging side 5 and gradually lower on the non-swinging side 6, and
A horizontal reciprocating device is installed that moves slowly when moving towards the swinging side 5 and quickly when moving towards the non-swinging side 6, and the swinging support 12 on the swinging side 5 is long and non-swinging. Since the swinging support rod 13 on the swinging side 6 is a short swinging type device for sorting unhulled rice and brown rice, the non-swinging side 5 forms a protrusion 7 that is higher on the non-swinging side 6 and gradually becomes lower on the board surface. The return is slow when the sorting plate 1 moves toward the rocking side 5, and fast when moving toward the non-rocking side 6.When the sorting plate 1 is moved to the rocking side 5, it returns slowly. As explained above, good separation can be achieved by combining the above steps.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a known example, Fig. 2 is a front view of the same, Fig. 3 is a partially enlarged sectional view of a sorting plate of a known example, Fig. 4 is a front view of the quick return mechanism, and Fig. 5 is a sorting plate. 6 is a front view, 7 is a left side view, 8 is a partial sectional view of
9 is a plan view, FIG. 9 is a sectional view, FIG. 10 is a sectional view, FIG. 11 is a front view of the present invention, and FIG.
FIG. 2 is an operation diagram of the sorting plate, and FIGS. 13 to 18 are explanatory diagrams of the operation. Explanation of symbols, 1... Sorting plate, 2... Supply side, 3
...Discharge side, 4...Side wall, 5...Water side, 6...
Non-rocking side, 7... Inclined protrusion, 8... Supply hopper, 9... Underframe, 10... Bearing, 11... Bearing,
12... Swinging support rod, 13... Swinging support rod, 14...
Bearing, 15... Bearing, 16... Shaft rod, 17... Rod, 18... Crank, 19... Drive shaft, 20
...Pulley, 21...Unhulled rice outlet, 22...Brown rice outlet, 23...Mixed rice outlet, α...Inclination angle, β...Discharge flow angle.

Claims (1)

[Claims] 1 The shape of the sorting plate 1 when viewed from above is approximately square, one side of the front and rear sides of the sorting plate 1 is a supply side 2, the other side of the front and back sides is a discharge side 3, one side of the left and right sides is a rocking side 5, and the left and right sides are a supply side 2. The other side of the side is a non-rocking side 6, and the sorting plate 1 has a discharge side 3 lower than the supply side 2 and inclined in the front and back direction, and the left and right sides of the sorting plate 1 are horizontal or non-rocking side 5. The swinging side 6 has a low horizontal inclination, and the supply side 2, the swinging side 5, and the non-swinging side 6 are provided with side walls 4 that stand up at approximately right angles, and the plate surface of the sorting plate 1 has a swinging side. 5 forms a protrusion 7 which is high and the non-swinging side 6 gradually becomes lower, and when the screening plate 1 moves toward the swinging side 5, it moves slowly toward the non-swinging side 6. This is a swinging type sorting device for paddy rice and brown rice, in which a horizontal reciprocating device that moves quickly is installed, and the swinging support rod 12 on the swinging side 5 is long and the swinging support rod 13 on the non-swinging side 6 is short. .