JP5063727B2 - Grain selection equipment - Google Patents

Description

  The present invention relates to a grain selection device that selects and removes impurities such as stones contained in cereals such as rice, and more specifically, even in recent grain selection operations of a variety of small lot lots, each time a lot is switched. The present invention relates to a grain selection device that can eliminate or reduce grain loss.

2. Description of the Related Art Conventionally, a so-called scouring machine called a scouring machine that sorts and removes impurities such as stones contained in cereals such as rice has been known.
In this cerealing device, a cerealing board for performing a cerealing operation is installed so as to be inclined so that the grain collection port side is lowered forward. Moreover, as a shape of a cereal selection board, what is conventionally tapered as shown in FIG. 7 is generally used. Furthermore, the cereal selection board is provided with a large number of ventilation holes on the entire surface of the cereal selection board from the lower surface to the upper surface and from the lower inclined side to the upper inclined side, and is vibrated diagonally up and down by the vibration mechanism. It has become.

  And the conventional cerealing apparatus and cerealing board perform the following operation | movement at the time of cerealing.

First, when the grains mixed with impurities are continuously supplied on the cereal board, the fan is provided at the lower part of the cereal board, and the wind is sent from the lower surface to the upper surface of the cereal board through the vent hole. In addition, the grain selection board vibrates diagonally up and down.
Then, after the grains that become a layer of a certain thickness accumulate on the grain selection board, the grains in the granular material with a small specific gravity gradually rise to the upper layer in the granular material and become avalanche-like, It flows and is collected by the grain recovery port at the tip. On the other hand, contaminants such as stones with large specific gravity sink to the lower layer in the grain and gradually gather upward.
And if the amount of the collected dust increases by continuous operation, the dust discharge port is opened and discharged out of the cereal selection board.

Originally, the cerealing apparatus operates as such, but when one lot is supplied, it is inevitable that a certain amount of grain stays on the cerealing board.
And in order to prevent contamination due to the difference in the varieties between the grain retained on this grain selection board and the grain to be selected next, the grain retained on the grain selection board is discharged by some means. The series of cerealing operations is completed.

  However, since the grains staying on the grain selection board are mixed with a small amount of impurities, it cannot be a product, resulting in a so-called grain loss and reducing the yield rate of the product. It has become.

Here, the rice milling industry is said to be an industry with a lower profit margin than other industries, and there is a strong demand for increasing the yield rate of products as compared with other industries. In addition, in the grain industry including the rice milling industry, in recent years, it has become a variety and small-scale production.
Therefore, in order to frequently change lots even in the cerealing device, the above-described grain loss occurs and the yield rate of the product is significantly reduced. Therefore, there is a strong demand for a solution to this problem. Yes.

  Also in the conventional grain selection apparatus, various techniques for taking out the grains remaining on the grain selection board have been developed. For example, the grain selection apparatuses described in Patent Documents 1 to 3 are disclosed.

  Specifically, the cerealing device described in Patent Document 1 is provided with a gate that prevents impurities collected in the upper part of the slope by the cerealing work from flowing down the lower part of the slope.

  Moreover, the grain selection apparatus of patent document 2 discharged | emitted the contaminant in a granular material from the contaminant discharge port by installing the remaining rice collection | recovery port in the vicinity of the contaminant discharge port provided in the inclination upper direction. Later, the rice remaining on the cereal board is recovered from the remaining rice recovery port installed in the vicinity of the contaminant discharge port.

  Furthermore, the grain selection apparatus according to claim 4 of Patent Document 3 is configured so that the partition member provided above the inclination of the grain selection plate is blocked from the selection unit and the pebble collection unit of the grain selection plate after the completion of the grain selection. After operating and preventing the pebbles after the cerealing work is finished flowing down on the cerealing board and mixing in the grain, after the cerealing work is finished, the grain is made to flow downward and collected, By operating the partition member to the original position and opening the sorting unit and the pebble collecting unit, the pebble discharge mechanism is simplified.

Japanese Utility Model Publication No. 3-11471 Japanese Patent Laid-Open No. 10-146567 JP-A-11-226506

However, although the cerealing device described in Patent Document 1 is provided with a gate for preventing the flow-down, originally, in the cerealing device, the contaminants are not accumulated only in the reservoir for the contaminants, Some of the cereals may be contaminated even in the middle, so in order to completely prevent the contamination from entering the product, The majority of the grain remaining in the plant must be handled as a mixture of impurities.
Therefore, in the cereal selection of a large variety and small lot, there is a problem that it is not efficient for improving the product yield rate.

  Moreover, in the cerealing apparatus described in Patent Document 2, since the reservoir for contaminants has the same structure as the conventional one, the grain that exists in the middle of the cerealing plate every time the lot is switched. This is effective for improving the yield rate of products in the selection of high-mix low-volume lots because good rice that is not contaminated can only be collected from the remaining rice collection port. There is a problem that is low.

Furthermore, in the cerealing device according to claim 4 of Patent Document 3, not only the complexity of opening and closing the partition member every time the cerealing operation for each lot is completed, but also the cerealing plate that cannot be partitioned by the partition member. There is a problem that impurities present in the middle position are mixed into the product.
In addition, even in this cerealing device, unless the grains and impurities remaining at each lot changeover are discharged to prevent contamination, it is not possible to start cerealing a new lot, There is a problem that efficient operation is not possible in cereal selection of lots.

  The present invention has been made in view of the above-described conventional problems, and in recent years, in grain selection work of a large variety of small lots, zero or reduction of grain loss that has occurred at each lot changeover. The purpose is to provide a cerealing device that can improve the sorting performance.

In order to achieve the above-mentioned object, the grain selection apparatus according to claim 1 of the present invention is configured such that the grain collection port side is inclined forward and downward, the contaminant discharge port is provided at the upper part of the inclination, the entire surface, and the lower surface to the upper surface. In the grain selection device that provides a large number of open vents and vibrates the grain selection board with the side plates upright on the left and right, obliquely up and down, and at least guides the impurities to the impurities discharge port at the upper part of the inclination of the grain selection board A guideway having a lower side path and an upper side path is provided in a direction intersecting with the grain flow direction on the cereal selection board, and a flow prevention wall that prevents the flow of foreign substances to the grain collection port is provided at the entrance of the upper side road. The upper side road and the lower side road are cut off, and the vent hole of the guide path is provided so as to open toward the traveling direction or the oblique traveling direction of the guide path .

In the grain selection apparatus according to claim 2 of the present invention, the upper side path is narrow and elongated, and is provided in a direction substantially orthogonal to the front-rear vibration direction of the grain selection board, and further, an upward slope toward the contaminant discharge port It is characterized by forming.

According to a third aspect of the present invention, there is provided a grain selection device comprising: a partition plate provided with an opening / closing shutter inside the left and right side plates of the grain selection plate; The residual grain recovery path is arranged so as to be located almost opposite to the side plate and substantially parallel to the side plate, and recovers residual rice after grain selection to the grain recovery port by the partition plate and the side plate. And the vent hole of the residual grain recovery path is open toward the traveling direction of the recovery path.

A grain selection method according to claim 4 of the present invention is characterized by using the grain selection apparatus according to any one of claims 1 to 3 .

According to the grain selection device according to claim 1 of the present invention, the grain collection port side is inclined forward and downward, the contaminant discharge port is formed in the upper part of the inclination, and a large number of ventilation holes opened from the lower surface to the upper surface. In the cerealing device that vibrates the cerealing board with the side plates upright on the left and right, obliquely up and down, at least the lower side path and the upper side path that guide the impurities to the contaminant discharge port at the upper part of the inclination of the cerealing board The provided guideway is provided in a direction intersecting with the grain flow direction on the grain selection board, and a flow prevention wall for preventing the flow of impurities to the grain collection port is provided with the upper side road leaving the entrance of the upper side road. The lower side road is provided so as to be blocked, and the vent hole of the guide path is provided so as to open toward the traveling direction or the oblique traveling direction of the guide path .
Therefore, the selected foreign matter does not flow down on the cereal selection board due to the flow-preventing wall that is partially open. As the grain remains on the upper side of the flow-prevention wall along with other grains, the grains on the other grain selection plates do not contain any potatoes and can be recovered from the grain collection port. While preventing contamination, it is possible to start cerealing a new lot. Moreover, the grain loss can be reduced to zero or reduced.
Further, the taxiway is a taxiway including a lower side road and an upper side road, the flow prevention wall is positioned so as to block the upper side road and the lower side road leaving the entrance of the upper side road, and the vent hole of the taxiway is located on the taxiway. It is characterized by opening toward the traveling direction or the oblique traveling direction.
Therefore, the separation efficiency of impurities can be improved.

According to the grain selection apparatus according to claim 2 of the present invention, the upper side path is narrow and narrow and is provided in a direction substantially orthogonal to the vibration direction of the grain selection board, and further rises toward the contaminant discharge port. It is characterized by forming a gradient.
Therefore, it is possible not only to return the contaminants advanced to the upper side road in the flow prevention wall, but also to concentrate the contaminants close to the contaminant discharge port, and to effectively concentrate the mixture of contaminants and grains. It can be very small.

According to the grain selection apparatus according to claim 3 of the present invention, the partition plate provided with the opening / closing shutter is provided inside the left or right side plate of the grain selection board, and the opening / closing shutter is an inclined upper portion, and the foreign matter Residual grain recovery so as to be arranged at a position opposite to the discharge port and substantially parallel to the side plate, and recovering residual rice after grain selection to the grain recovery port by the partition plate and side plate A path is formed, and the vent of the residual grain recovery path is open in the traveling direction of the recovery path.
Therefore, it is also possible to collect the grains on the other cereal boards from the residual rice recovery path while leaving the impurities in the sewage prevention walls on the cereal boards by the anti-flow walls at the end of the work. Furthermore, since no foreign matter is mixed in the residual grain on the grain selection board recovered from the residual rice recovery path, the grain loss does not occur and the yield rate of the product can be improved. In addition, work efficiency can be improved.

According to the grain selection method according to claim 4 of the present invention, the grain selection apparatus according to any one of claims 1 to 3 is used.
Therefore, it is possible to improve the yield rate of the product and improve the operation efficiency of the cerealing device.

It is side surface sectional drawing of the grain selection apparatus of this invention. It is a top view of the grain selection board of this invention. It is AA and BB sectional drawing of FIG. It is a schematic diagram of the guide path and the partition board in the grain selection board of this invention. It is a schematic diagram of the partition plate and opening / closing shutter in the cereal selection board of the present invention. It is a schematic diagram of the contaminant discharge port in the grain selection board of this invention. It is a top view of the conventional grain selection board.

  Embodiments of the present invention will be described with reference to the drawings. The embodiment described below is merely an example embodying the present invention, and does not limit the technical scope of the present invention.

  1 is a side sectional view of the cerealing device of the present invention of the present invention, FIG. 2 is a plan view of the cerealing plate of the present invention, FIG. 3 is a sectional view taken along lines AA and BB of FIG. FIG. 5 is a schematic diagram of a partition plate and an open / close shutter in the cereal selection board according to the present invention, and FIG. 6 is a contaminant discharge port in the cereal selection board according to the present invention. FIG. 7 is a plan view of a conventional cereal selection board.

  As shown in FIG. 1, the grain selection device 1 according to the present invention includes a grain selection board 2, a chute 3, a fan 4, and a vibration mechanism 5 as main components. Here, the grain selection board 2 is installed so as to be inclined so that the grain collection port 6 is lowered forward, and is made to vibrate diagonally up and down.

As shown in FIG. 2, the grain selection board 2 according to the present invention includes a grain collection port 6, a contaminant discharge port 8 having an opening / closing shutter 7, a vent 9, a side plate 10, a lower side path 11 a, a middle side path 11 b, and an upper side path. The flow-in prevention wall 12 installed so as to block the guide path 11, the lower side path 11 a, and the upper side path 11 c configured in a substantially U shape in plan view by 11 c is substantially orthogonal to the vibration direction of the grain selection plate 2. The partition plate 14 provided in the direction and provided with the opening / closing shutter 13 is configured as a main component.
A residual grain collection path 15 is formed by the side plate 10 and the partition plate 14.

  Although the middle side path 11b is provided in the present embodiment, the lower side path 11a may be extended without providing the middle side path 11b.

  Here, the air holes 9 provided on the cereal selection board 2 other than the residual grain collection path 15 are open from the lower slope to the upper slope as shown in FIGS. 2 and 3 (a). The vent holes 9 of the lower side path 11a and the upper side path 11c are opened in an obliquely moving direction, and the vent holes 9 provided on the residual grain recovery path 15 have a grain as shown in FIG. 3 (b). It opens from the upper tilt to the lower tilt toward the recovery port 6.

Next, operations and effects in the above-described embodiment will be described.
First, granular materials (not shown) mixed with stones and other porcelain are continuously supplied from the chute 3 onto the cerealing plate 2, and blown from the lower surface of the cerealing plate 2 to the upper surface through the vent holes 9 from the fan 4. In addition, the vibration mechanism 5 installed in the cerealing device 1 applies vibrations in the diagonally up and down direction to the cerealing plate 2.

Then, after grains having a certain thickness are accumulated on the grain selection board 2, grains (not shown) in the granular material having a small specific gravity gradually gather in the upper layer, become an avalanche, It flows downward and is recovered by the grain recovery port 6 at the tip. Here, since the collected grains have already been freed of foreign substances, they are already selected grains.
On the other hand, foreign matters (not shown) such as stones having a large specific gravity sink to the lower layer in the granular material, and gradually move upward in the slope due to the vibration of the cereal sorting board 2 in the front / rear oblique direction and the wind force from the vent hole 9. And collected.

  Next, the foreign matter collected above the inclination of the grain selection board 2 reaches the lower side path 11 a of the guide path 11. Here, in the lower side path 11a, a vent hole 9 is opened in an oblique direction toward the middle side path 11b in order to guide impurities to the middle side path 11b. Accordingly, the contaminants that have reached the lower side path 11a travel on the lower side path 11a toward the middle side path 11b.

  Next, the contaminants that have reached the middle side road 11b are located on the middle side path 11b because the air holes 9 provided in the middle side path 11b open toward the upper side path 11c in order to guide the impurities to the upper side path 11c. To the upper side road 11c.

  Next, the contaminants that have reached the upper side path 11c are opened obliquely toward the foreign matter discharge port 8 in order for the air holes 9 provided in the upper side path 11c to guide the foreign matter to the foreign matter discharge port 8. Therefore, the vehicle travels on the upper side path 11c toward the contaminant discharge port 8.

  The contaminants that have reached the contaminant discharge port 8 and the top portion of the upper side path 11c are the top portion of the contaminant discharge port 8 and the upper side path 11c, that is, the flow prevention wall 12 until the timing for discharging the contaminants comes. It will stay inside.

  Here, the opening direction of the vent hole 9 provided in the guide path 11 is not particularly limited as long as it opens in the traveling direction of the guide path 11, but in order to more efficiently guide the contaminants to the contaminant discharge port 8. For this reason, it is preferable to open the ventilation holes 9 provided in the lower side path 11a and the upper side path 11c in an oblique direction with respect to the traveling direction of the contaminants, as in the present embodiment.

  In addition, the guide path 11 is not particularly limited to the shape or gradient of the passage as long as the contaminants can be selected from the grains. However, in the upper side path 11c, the amount of grains is further reduced and the separation efficiency of the impurities is increased. In order to improve, it is preferable to form the upper side path 11c with a narrow width, an elongated shape, and an upward slope.

  Next, during the continuous operation in this manner, foreign matter accumulates in the foreign matter discharge port 8, and when it is sufficiently accumulated, the open / close shutter 7 is opened in a timely manner, and only the foreign matter is discharged. The opening / closing shutter 7 is closed before the grain begins to mix. Then, a part of the contaminants remains in the contaminant discharge port 8 and the upper side path 11c, but there is no problem because it is discharged at the next time. Thus, the grain loss can be reduced to zero by always discharging only the impurities.

Thus, since the upper side path 11c of the present invention is provided so as to be substantially orthogonal to the direction of movement of the cerealing board 2 in the diagonally up and down direction, the upper side path 11c in the flow prevention wall 12 is temporarily provided. The entered foreign matter only proceeds to the foreign matter discharge port 8 and does not descend from the foreign matter storage area to the middle of the cereal selection board 2 as in the prior art.
Therefore, there is no foreign matter in the grains remaining on the grain selection board 2 other than a very small quantity of grains existing in the upper side path 11c in the flow prevention wall 11 having a very small space due to the narrow width and narrowness. do not do.

  At the end of the operation, as shown in FIG. 5, as shown in FIG. 5, the open / close shutter 13 provided on the partition plate 14 is opened so that the grains remaining on the grain selection board 2 are guided to the residual grain collection path 15. . The grains remaining on the grain selection board 2 flow down by the air holes 9 and the slopes provided on the residual grain collection path 15 and are collected as selected non-defective products from the same grain collection port 6. It will be. Moreover, since the protrusion 16 does not protrude on the passage as shown in FIG. 3B, the non-defective product is quickly collected.

Lastly, a very small amount of grain is mixed in the upper side path 11c, and impurities and grains are mixed and stayed in the vicinity of the contaminant discharge port 8, but they are mixed with the grains of the next lot. There is almost nothing, and even if the whole amount of the grains staying in the upper side path 11c is replaced with the next lot of grains, there is no problem because it is extremely small.
For example, even in the grain selection board 2 having a processing area of 3 tons of rice per hour, the amount of rice remaining in the upper side path 11c and the contaminant discharge port 8 is only 30 g.

  Further, in recent years, due to the widespread use of cerealing devices in production areas, the mixing rate of contaminants is generally extremely low, so that it is not necessary to open the opening / closing shutter 7 at the end of each lot operation in a rice mill. . Therefore, no matter how small a lot is in full operation, the impurities need only be taken out at an appropriate timing such as once a day or once every several months. In short, when a large amount of foreign material has accumulated at the foreign material discharge port, the opening / closing shutter 7 of the foreign material discharge port 8 is opened as shown in FIGS. 6 (a) to 6 (b), so that only the foreign material is selected. If the grain is mixed with the discharged matter even a little, the opening / closing shutter 7 can be closed. Therefore, the grain loss can be zeroed or reduced.

  As described above, in a series of cerealing operations, the selected contaminants are retained in the leading portions of the contaminant discharge port 8 and the upper side path 11c until a predetermined period comes. It is possible to start cerealing a new lot without discharging impurities every time, and there is no grain loss even in cerealing of a large variety of small lots, so that the operation can be efficiently performed.

  Further, by opening and closing the opening / closing shutter 13 provided on the partition plate 14, the grains remaining on the grain selection board 2 can also be recovered from the grain recovery port 6 through the residual grain recovery path 15. Therefore, it is possible to start cerealing a new lot while preventing contamination.

  Moreover, the contaminant discharge port 8, which is a reservoir for contaminants according to the present invention, is located at a position that is almost opposite to the opening / closing shutter 13 at the entrance of the residual grain recovery path 15. There was no longer the anxiety of a mixture of food and grain.

  Further, since the upper side path 11c is narrow and narrow and forms an upward slope toward the contaminant discharge port 8, not only can the separation efficiency of the contaminant be further improved, but also the contaminants. And the mixture of grains can be extremely reduced.

  The grain selection apparatus of the present invention can be used in a grain selection apparatus that selects and removes foreign substances such as stones contained in grains such as rice.

DESCRIPTION OF SYMBOLS 1 Grain selection apparatus 2 Grain selection board 3 Chute 4 Fan 5 Vibration mechanism 6 Grain collection port 7 Opening / closing shutter 8 Contaminant discharge port 9 Vent hole 10 Side plate 11 Guide path 11a Lower side path 11b Middle side path 11c Upper side path 12 Flowing prevention wall 13 Opening / closing Shutter 14 Partition 15 Residual grain recovery path 16 Protrusion

Claims (4)

Tilt the grain collection port side downwards,
In the upper part of the slope,
On the entire surface, a number of ventilation holes that open from the bottom to the top are provided.
In the cerealing device that vibrates the cerealing board with the side plates standing up and down diagonally up and down,
A guide path comprising at least a lower side path and an upper side path for guiding impurities to the contaminant discharge port at the inclined upper part of the cereal selection board,
Provided in a direction intersecting the flow direction of the grain in the grain selection board,
A flow-preventing wall for preventing the foreign matter from flowing down to the grain recovery port,
Provided to block the upper side road and the lower side road, leaving the entrance of the upper side road,
The vent of the guideway,
A cereal selection device provided so as to open toward a traveling direction or an oblique traveling direction of a taxiway. The upper edge is
Narrow and elongated, and provided in a direction which is substantially perpendicular to the longitudinal oblique vibration direction of the election Kokuban, according to claim 1, characterized in that it forms a upward slope further towards the contaminants outlet Grain selection equipment. Inside the left or right side plate of the cereal selection plate,
A partition plate with an open / close shutter
The opening / closing shutter is an upper part of the slope and is provided at a position substantially opposite to the contaminant discharge port, and provided substantially parallel to the side plate,
Forming a residual grain recovery path for recovering residual rice after grain selection in the grain recovery port by the partition plate and the side plate;
The cereal selection device according to claim 1 or 2 , wherein a vent hole of the residual grain recovery path is opened in a traveling direction of the recovery path. SenKoku method using the SenKoku device according to any one of claims 1 to 3.

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