JPH04371274A - Sorting device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a sorting device, and more particularly, the present invention relates to a sorting device, and more particularly, a sorting body that feeds a mixture of at least two or more types of granules from the upper side in the feeding direction and places it on a sorting surface is configured to be swingable. Then, by distributing and forming a plurality of protrusions on the sorting surface to lock and move the granules located in the lowest layer of the mixture, and by swinging the sorting body,
The present invention relates to a sorting device that sorts the mixture by transporting the mixture in the feeding direction and sorting and moving specific granules from the mixture in a sorting direction different from the feeding direction, and sends out the mixture from the downstream side in the feeding direction.

0002

2. Description of the Related Art As an example of such a sorting device, a sorting body having a plurality of protrusions dispersedly formed on a sorting surface is suspended and supported while being inclined so that the sorting surface becomes lower toward the lower side in the feeding direction. The present inventors have previously proposed a movement regulating mechanism that defines the reciprocating movement of the sorting section in the feeding direction and the reciprocating movement in the sorting direction and makes the sorting section swing. (For example, Japanese Patent Application No. 2-67
No. 686). Conventionally, in such a sorting device, all of the plurality of protrusions are used for the mixture (for example, grains after hulling).
The granules located in the lowest layer (if the mixture is grains after hulling, brown rice will be located in the lowest layer) are held and moved in the sorting direction. Ta. That is, all of the plurality of projections are configured to lock and move the granules in the sorting direction, and the force to move the granules in the feeding direction is generated by using the locking and moving force of the projections. Instead, the oscillating force of the sorting body itself was used.

0003

[Problem to be Solved by the Invention] Thus, while the mixture is being transferred in the feeding direction, specific granules are selected from the mixture (if the mixture is grains after hulling, brown rice becomes a specific granule). When moving the granules in the sorting direction, the movement of the mixture on the sorting surface based on the rocking force will be different and complex at each point on the sorting surface. The present inventors have found that there are portions on the surface where the mixture stagnates. When such a stagnant portion occurs, even though the specific granules are being sorted from the mixture in the sorting direction, the granules cannot be smoothly transferred in the feeding direction, resulting in a decrease in sorting ability. The problem arises of inviting people. The present invention has been made based on this knowledge, and it is an object of the present invention to provide a means that can solve the problem of the decline in sorting ability.

0004

[Means for Solving the Problems] In the sorting device of the present invention, the protrusion is formed in at least a part of the area where the specific granular material is sorted and moved in the sorting direction in the lowermost layer and is separated. , the specific granular material is locked and moved in the feeding direction, and the remaining protrusions are configured to lock and move the specific granular material in the sorting direction.

[0005]

[Operation] According to this sorting device, the protrusion formed in at least a part of the separated region is configured to lock and move a specific granular material in the feeding direction;
The granular objects are forcibly moved in the feeding direction based on the granular object locking and moving force by the protrusions. Therefore,
By providing the protrusion forming portion at or near the portion where the retention portion occurs, even if the retention occurs on the sorting surface, the retention is broken down by the granular body retaining moving force, and the retention occurs. will be able to avoid. Note that, needless to say, in the separated area, since this is an area containing only the specific granular material, there is no need to further lock and move the granular material in the sorting direction.

[0006]

[Effects of the Invention] Therefore, it is possible to sort and move the specific granules from the mixture in the sorting direction and to transfer the granules in the feeding direction without causing the stagnation, which has not occurred in conventional devices. This solves the problem of reduced sorting ability.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be explained based on the drawings.

As shown in FIG. 3, an apparatus for sorting brown rice as an embodiment of the apparatus of the present invention is used to sort grains after hulling (a mixture of paddy and hulled brown rice, hereinafter referred to as a mixture). A supply section A sends out the mixture from the bottom, and the mixture sent out from the supply section A is received on the sorting surface 1A and is transferred in the feeding direction X (Fig. 3
(vertical direction in the paper) from the starting end to the ending end, and the rice is separated in the sorting direction Y perpendicular to the feeding direction ) a plurality of upper and lower stages (in this example, five stages) of sorting bodies 1; a collecting section B that separates and collects the grains after sorting discharged from the terminal end of the plurality of stages of sorting plates 1; The main part includes a supporting base frame F. The sorting device also includes a movement regulating mechanism N that causes the sorting body 1 to swing while regulating the range of reciprocating movement of the sorting body 1 in the feeding direction X and the sorting direction Y. Then, the mixture is separated based on the rocking operation.

As shown in FIG. 3, the supply section A includes a fixedly disposed supply hopper 3, a receiving hopper 4 supported by the sorting body 1, a guide body 5, and a cylindrical body that communicates the two hoppers 3 and 4. It will be equipped with 6. As shown in FIG. 1, a plurality of guide passages 5a are formed in the lower part of the guide body 5 to guide the mixture in the receiving hopper 3 to each sorting body 1 in a separate manner. The entrance of each guide passage 5a is provided facing the bottom of the receiving hopper 4 and lined up along the sorting direction Y of the sorting bodies 1, and the exit thereof is formed in the starting end side wall 7a of each of the sorting bodies 1. It is connected to the supply port 8. Each of the cylinder body 6, receiving hopper 4, and guide body 5 is assembled at the starting end of the multiple stages of sorting bodies 1 so as to move integrally with each sorting body 1. The sorting bodies 1 are integrally connected to each other at angles 7A and supported by a movable frame 11, so that they can be integrally moved relative to the base frame F.

The periphery of each sorting body 1 is surrounded by a side wall 7, as shown in FIGS. 1 and 2, and the sorting surface 1A is covered with the most of the mixture by the swinging of the sorting body 1. A plurality of protrusions 10A and 10B are formed in a distributed manner to lock and move the brown rice located in the lower layer. The plurality of protrusions 10A, 10B are of two types.
0B, that is, one direction Y in the sorting direction Y for the brown rice in the bottom layer.
2 (formation position side Y2 of the supply port 8), and a first type of protrusion 10B that locks and moves the lowermost layer brown rice to the lower side X1 in the feeding direction X. The second type of projection 10A is divided into two parts. As shown in FIG. 2, each of the two types of protrusions 10A and 10B has a gentle slope 10a gradually approaching the sorting surface 1A on one side, and a slope 10a on the other side. A locking portion 10b capable of locking brown rice is formed. Incidentally, in Figure 2,
The second type of projection 10A is shown, the locking portion 10b of the projection 10A is formed on the lower side X1, and the locking portion 10b of the first type of projection 10B is formed on the supply port 8. It is formed on the formation position side Y2. The protrusions 10A and 10B are capable of locking and moving the brown rice toward the forming position of each locking portion 10b.

[0011] The boundary line between the formation positions of the two types of protrusions 10A and 10B is determined by the boundary line between the formation positions of the two types of protrusions 10A and 10B in at least a part of the area where the brown rice has been sorted and moved in the sorting direction Y in the lowermost layer and has been separated. The setting is such that a type of protrusion 10A is formed. Specifically, a straight line parallel to the feeding direction (see double-dashed line). The protrusions 10A and 10B are easily formed by performing plastic working such as press working on the sorting body 1 made of a metal plate, and the boundary line is aligned with the feeding direction X. The straight line parallel to is useful for improving the workability when performing plastic working such as press working.

The second type of protrusion 10A is provided in a region including the portion where the stagnation portion occurs, and even if the stagnation is to occur on the sorting surface, the protrusion 10A prevents the stagnation from occurring. It becomes possible to break down the granules by the force of locking and moving the granules based on the structure, and avoid the occurrence of stagnation.

The swinging mechanism of the sorting body 1 will be further explained. The sorting body 1 has a feeding direction X as shown in FIG.
As shown in FIG.
The slope (sorting angle:
α), only the brown rice in the mixture is locked and moved by the locking portion 10b of the second type projection 10A, and transferred to the forming position side Y2 of the supply port 8 in the sorting direction Y; The structure is such that brown rice is separated and moved in the sorting direction Y from the mixture.

As shown in FIGS. 4 and 5, the movement regulating mechanism N suspends the sorting body 1 in an inclined position with respect to the base frame F in a state that allows movement in the feeding direction X and the sorting direction Y. four hanging rods 12 and 13 supporting the sorting body 1; a crank 15 that eccentrically rotates the upper end X2 of the sorting body 1 in the feeding direction about a first axis 14 along the vertical direction Z; and the sorting body 1. A lever 17 that swings an end portion (lower side portion 1a) on the lower side X1 in the feeding direction around a second shaft 16 along the vertical direction Z. An electric motor 19 as a drive unit is transmission connected to the first shaft 14 via a belt 18 as shown in FIG. 4, and the crank 15 is driven by the drive of the electric motor 19. The upper end X2 of the sorting body 1 is rotated around the first shaft 14, and the lower end X1 (lower side 1a) of the sorting unit 2 is swung around the second shaft 16. As a result, the mixture supplied from the grain supply position I (formation position of the supply port 8) on the starting end side of the sorting body 1 is divided into a region G of brown rice and a region where paddy and brown rice are mixed (so-called mixed rice). area)
The grains are sorted into three regions: K and the paddy region M (the boundaries between these regions are indicated by dashed lines in FIG. 1).

The recovery section B is provided with a recovery hopper 20 connected to the terminal end of the sorting body 1, and inside the recovery hopper 20, as shown in FIG. 1, brown rice and mixed rice are stored. A first partition plate 21 that separates the mixed rice and a second partition plate 22 that separates the mixed rice and paddy are provided.

Next, another embodiment of the present invention will be described. It is also possible to consider an embodiment in which the boundary line between the formation positions of the two types of protrusions 10A and 10B is along the boundary line between the brown rice region G and the mixed rice region K, as shown in FIG. Furthermore, as shown in FIG. 7, an embodiment may be considered in which the second type of protrusion 10A is formed only in a portion of the sorting surface 1A in the area G of brown rice where the retention is likely to occur. In addition, sorting equipment other than the brown rice sorting equipment mentioned above (2
The present invention can also be applied to a sorting device for sorting specific powdery materials other than brown rice from a mixture other than grains after hulling, which is made up of granular materials larger than seeds.

Although reference numerals are written in the claims for convenience of comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

[Fig. 1] A plan view showing the sorting body together with the state of sorting the mixture.

[
Figure 2: Vertical cross-sectional view of protrusions provided on the sorting surface

[Figure 3] Front view showing the overall configuration of the sorting device

[Fig. 4] Side view showing the swinging mechanism of the sorting body

[Figure 5] Its plan view

FIG. 6 is an explanatory diagram (plan view) showing the state of protrusion formation in another example.

FIG. 7 is an explanatory diagram showing the state of protrusion formation in yet another embodiment (
Plan view)

[Explanation of symbols]

1 Sorting body 1A
Sorting surface 10A, 10B protrusion

Claims (1)

[Claims] Claim 1: A mixture consisting of at least two or more types of granules is fed from the upper side in the feeding direction (X) to the sorting surface (1).
A) A plurality of protrusions (10A) on which the sorting body (1) to be placed on is configured to be swingable, and which lock and move the granular bodies to be located in the lowest layer of the mixture on the sorting surface (1A). ，
(10B) is dispersed, and by swinging the sorting body (1), the mixture is transferred in the feeding direction (X) and a specific granular material is sorted from therein in a direction different from the feeding direction (X). A sorting device that sorts the mixture by sorting and moving in the direction (Y) and sending it out from the lower side in the feeding direction (X), wherein the specific granules are sorted and moved in the sorting direction (Y) in the lowermost layer. The projections (10A) formed in at least a part of the separated region are configured to lock and move the specific granular material in the feeding direction (X), and the remaining projections (10B) A sorting device configured to lock and move the specific granular material in the sorting direction (Y).