JPH10277494A - Sorting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make deforming distortion smaller to the utmost to prevent damage or the like from arising when a sorting body 1 is subjected to the deforming distortion associated with oscillating motion. SOLUTION: The sorting body 1 for sorting material to be sorted by oscillation with it being mounted on a sorting surface 1A is hung from a fixing frame F in an inclined position by hanging tools 12, 13, and also an oscillating means N for oscillating the sorting body 1 along the sorting surface direction is provided. And the plural slings are constituted of the weight supporting sling 13 for supporting a weight of the sorting body 1 and the distortion absorbing hanging tool 12 for absorbing deforming distortion associated with the oscillation of the sorting body 1, and the distortion absorbing hanging tool 12 is provided with an expansion part S which can be extended and contracted along the hanging direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a sorting body which swings and sorts an object to be sorted on a sorting surface. The sorting body is hung on a fixed frame by a plurality of hanging tools in an inclined posture. The present invention relates to a sorting device provided with a swinging means for swinging the sheet along a sorting surface direction.

[0002]

2. Description of the Related Art As a conventional sorting apparatus, for example, as shown in Japanese Patent Application Laid-Open No. Hei 7-124524, a sorting body is an example of a sorting surface direction, and a predetermined feeding direction and a sorting direction intersecting the feeding direction. Rock along each of the
While transferring the grain after hulling as a sorting object in the feeding direction, the brown rice among the grains is sorted and moved in the sorting direction,
There is a sorting device configured to sort into brown rice and paddy, in this sorting device, in each of the suspenders, the sorting body has a sorting surface direction, that is, each moving component in the feed direction and the sorting direction. In order to perform the swing operation in this state, the upper end is formed of a metal bar pivotally supported by the fixed frame and the lower end is pivotally supported by the sorting body.

[0003]

By the way, in the above-mentioned conventional construction, when the sorting body is operated to swing along the direction of the sorting surface, the position of the upper end of each hanging tool is fixed, and the position is fixed. Since the lower end swings in the horizontal direction with the upper end set as a fulcrum, the sorting body supported by the lower end of each suspender changes its position in the vertical direction, and the posture changes to a horizontal state or an oblique state Will do. As a result, deformation strain or warpage may occur in the sorting body.If the sorting operation is continued in a state where such distortion or warpage occurs, the sorting body or the hanging tool may become fatigued due to the deformation strain. This may cause damage such as cracks.

The present invention has been made in view of such a point, and an object of the present invention is to improve the durability by minimizing the deformation distortion generated by the swinging operation of the sorting body. The present invention is to provide a sorting device capable of performing the above.

[0005]

According to the first aspect of the present invention, the weight is supported by the weight supporting suspender, and the fixed frame is inclined by the weight supporting suspender and the strain absorbing suspender. When the sorting body suspended on the screen is swung along the direction of the sorting surface to swing and sort the objects to be sorted placed on the sorting surface, the deformation distortion caused by the swing is suspended by the strain absorption. Absorbed by the ingredients.

Accordingly, when the sorting body swings, the weight is supported by the weight support suspending device. Therefore, the fluctuation of the position and posture of the sorting body is limited to a predetermined range, and the swing sorting of the sorting object is performed. While performing properly, if deformation strain occurs in the sorting body due to the swinging of the sorting body, since the distortion is absorbed by the strain absorbing hanging tool hanging the sorting body,
It is possible to prevent problems such as damage to the sorting body and the hanging tool due to the deformation and deformation of the sorting body,
It is possible to improve the durability.

According to the second aspect, in the first aspect, the expansion / contraction portion provided on the strain absorbing suspender expands and contracts in the hanging direction, so that the deformation distortion of the sorting body caused by the swing is absorbed by the strain. Absorbed by the hangers.

[0008] Therefore, with a simple configuration in which an elastic portion such as an elastic rubber or a spring is provided in the strain absorbing suspender, it is possible to reliably absorb the deformation strain generated in the sorting body.
Advantageous measures of claim 1 are obtained.

According to claim 3, in claim 1 or 2, two corners located on one diagonal of two diagonals of the sorting body formed in a quadrangular shape in plan view are used for weight support. The weight is supported by the suspending tool, and the deformation distortion accompanying the swing of the sorting body is absorbed by the strain absorbing suspending tool suspending two corners located on the other diagonal lines.

Therefore, while the weight of the sorting body is stably supported on one diagonal line passing through the position of the center of gravity of the quadrangular sorting body in a well-balanced manner, the deformation distortion of the sorting body in the diagonal direction intersecting the diagonal line is favorably absorbed. Thus, in a generally used quadrangular sorter, the preferred means of claim 1 or 2 is obtained.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the upstream side portion of the sorting body in the feeding direction is swung by the swing driving mechanism so as to draw an elliptical locus. The lower part in the feed direction of the sorting body pivotally supported by the swinging pivot mechanism is swung along the feeding direction, and the selected objects such as two or more kinds of granular materials are transferred in a predetermined feeding direction. In the meantime, sorting is performed in a sorting direction different from the feed direction.

In this type of driving configuration, it is common practice to drive the upper part of the sorting body on the upstream side in the feed direction to swing in a circular shape. There is a possibility that the feed action of the sorted material may not be sufficiently exerted at the part, but by swinging it into an elliptical shape compared to the case of such a circular motion,
By increasing the amplitude of the motion trajectory in the specific part,
It can be changed to improve the feeding action.

Therefore, if the upstream side of the sorting body in the feeding direction is swung by such an elliptical swinging motion, the strain of the sorting body tends to increase, but the above configuration effectively prevents the strain. By doing so, each of the sorting performance and the durability can be improved, and the suitable means of any one of claims 1 to 3 can be obtained.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a brown rice sorting apparatus will be described below with reference to the drawings.

As shown in FIG. 1, FIG. 3 and FIG. 4, the apparatus for sorting brown rice is a mixture of grain after hulling (a mixture of unhulled rice and hulled brown rice, which corresponds to an object to be sorted. ) From the bottom and a sorting direction Y orthogonal to the feeding direction X while the mixture sent from the feeding portion A is transported along the feeding direction X while being placed on the sorting surface 1A.
(Specifically, brown rice, mixed rice, and paddy) in a plurality of upper and lower stages (five stages in this embodiment) and a plurality of stages of sorting plates 1 Feed direction X
A collecting section B for separating and collecting the sorted kernels discharged from the end of the collecting section B, and a fixed frame F supporting the collecting section B as main parts.

Further, the sorting device regulates a reciprocating movement range of the sorting body 1 in the feeding direction X and the sorting direction Y,
A movement regulating mechanism N is provided as swinging means for swinging the sorting body 1 along the sorting surface direction of the sorting surface 1A. And
The mixture is separated based on the swing operation.

As shown in FIGS. 3 and 9, the supply section A communicates a fixedly disposed supply hopper 3, a receiving hopper 4 and a guide body 5 supported by a sorting body 1, and both hoppers 3, 4. And a cylindrical body 6 to be made. As shown in FIGS. 1 and 9, the guide body 5 is formed with a plurality of guide passages 5 a for diverting and guiding the mixture in the receiving hopper 4 to the respective sorting bodies 1. The entrance of each guide passage 5a is provided so as to line up along the sorting direction Y of the sorting body 1 in a state facing the bottom of the receiving hopper 4, and the outlet of the guide passage 5a is provided at the starting end side wall 7a of each sorting body 1. It is connected to the formed supply port 8. The opening area of the entrance of the guide passage 5a connected to the uppermost sorting body 1 of the guide passages 5a is made larger (for example, about three times) than the opening area of the entrance of the other guide passage 5a. is there.

Each of the cylindrical body 6, the receiving hopper 4, and the guide body 5 is assembled to the start end of the multistage sorting body 1 so as to move integrally with each sorting body 1. In addition, the respective sorting bodies 1 are connected and integrated with each other at an angle 7A and are supported by a movable frame 11, so that they can move relative to the fixed frame F integrally.

As shown in FIGS. 1 and 2, the periphery of each sorting body 1 is surrounded by a side wall 7, and the sorting surface 1A is formed on the lowermost layer by the swing of the sorting body 1 from the mixture. Are formed in a distributed manner. The plurality of projections 10A and 10B are a first type of projection 10B configured to lock and move the lowermost granular material in the lower side Y2 in the sorting direction Y, and the lowermost granular material in the feeding direction. X
The second type of projection 10A is configured to be locked and moved to the lower side X2.

In each of the two types of protrusions 10A and 10B, as shown in FIG. 2, a gentle slope 10a is formed on one side of the projection 10A and 10B gradually approaching the sorting surface 1A, and on the other side. A locking portion 10b capable of locking the granular material is formed. Incidentally, FIG. 2 shows the projection 10A of the second type, and the engaging portion 10A of the projection 10A is shown.
b is formed on the lower side X2 in the feed direction X, and the locking portion 10b of the first type projection 10B is formed on the lower side Y2 in the sorting direction Y. The projections 10A and 10B are capable of locking and moving the granular material toward the formation positions of the locking portions 10b.

Then, only the brown rice, which is to be located in the lowermost layer of the mixture, is used as the first type projection 10B.
And is transferred to the lower side Y2 of the sorting movement direction Y, whereby the brown rice is separated and moved in the sorting direction Y from the mixture.

The projection 10A of the second type is formed in a region 1M on the lower side X2 of the feed direction X and on the upper side Y1 of the sort direction Y on the sort surface 1A, and in the feed direction on the sort surface 1A. It is formed in a region 1G on the lower side X2 of X and on the lower side Y2 of the sorting direction Y.

More specifically, the region 1M is located at a position close to the boundary between the mixed rice region K and the paddy region M (see the dashed line in FIG. 1) and is a straight line parallel to the feeding direction X (see FIG. 1). 1) and a straight line (see the two-dot chain line in FIG. 1) at a position slightly lower than the middle in the feed direction X from the side X2 and parallel to the sorting direction Y. Area.
The region 1G is located at a position close to the boundary between the brown rice region G and the mixed rice region K (see the dashed line in FIG. 1) and is a straight line parallel to the feeding direction X (the two-dot chain line in FIG. 1). And the sorting direction Y at a substantially intermediate position in the feeding direction X.
Is a region defined by a straight line (see a two-dot chain line in FIG. 1) parallel to.

The projections 10A and 10B are easily formed by subjecting the sorting body 1 made of a metal plate to plastic working such as press working.
Further, the fact that the boundary line is set as a straight line parallel to the feed direction X and the sorting direction Y is useful for improving workability in performing plastic working such as the press working. ing.

As described above, the mixture supplied from the grain supply position I (the position where the supply port 8 is formed) on the starting end side of the sorting body 1 is mixed with the brown rice region G and the region where the paddy and brown rice are mixed (so-called mixed rice). The rice is separated into three regions, i.e., a rice region K and a paddy region M, and is discharged from the lower side 1a of the selection unit 2 to the collection unit B. The boundary between the three regions is indicated by a chain line in FIG.

The collecting section B is provided with a collecting hopper 20 connected to the end of the sorting body 1.
1, a first partition plate 21 for separating brown rice and mixed rice and a second partition plate 22 for separating mixed rice and paddy, as shown in FIG.
Are provided.

The swing mechanism of the sorting body 1 will be further described. As shown in FIGS. 3 and 4, the sorting body 1 is fixed to a fixed frame F by a plurality of hanging rods 12 and 13 as hanging tools.
Suspended in an inclined position. That is, the sorting body 1 is formed in a quadrangular shape in a plan view, and four corners (actually, the movable frame 11) of the square-shaped sorting body 1 are moved by the four suspension rods 12 and 13 in the feed direction X. And is suspended in such a manner as to allow movement in the sorting direction Y, so that the sorting surface 1A has a gradient (flow angle: θ) in which the lower side X2 in the feeding direction X is positioned lower, and The gradient in which the sorting surface 1A is located at the lower side as the side Y1 (sorting angle:
α).

As shown in FIGS. 3 to 5, the movement regulating mechanism N draws an oval locus around the first shaft center 14 along the vertical direction Z along the end of the sorting body 1 on the upstream side X1 in the feeding direction. And a lever 17 for swinging the end (lower side portion 1a) of the sorting body 1 on the lower side X2 in the feeding direction (lower side portion 1a) around the second axis 16 along the vertical direction Z. I have. Here, the major axis direction L of the elliptical locus is set so as to face the second shaft center 16 or its vicinity as shown in FIG.

That is, the movement regulating mechanism N as the swing means
The upper portion of the sorting body 1 in the feeding direction X is formed into an elliptical shape so that the mixture as the material to be sorted is sorted in the sorting direction Y different from the feeding direction X while being transferred in the predetermined feeding direction X. A crank 15 as a rocking drive mechanism for rocking so as to draw a locus of trajectory, and a rocking mechanism for pivotally supporting a lower portion of the sorting body 1 in the feeding direction X in a state of allowing the rocking along the feeding direction X. A lever 17 is provided as a pivot mechanism.

The mechanism of the crank 15 will be described with reference to FIG. At the position of the first shaft core 14, the sun gear 14
A, the fixed shaft 14B provided with A
After the rotational position is adjusted to set the position, the electric motor is fixed via a belt 18 to the lower end of a cylindrical shaft 28 which is fixed to the fixed frame F and which is fitted to the fixed shaft 14B in a slidable manner. A pulley 27 rotationally driven by 19 is provided continuously. On the other hand, a rotating plate 2 provided with a weight balance portion 26a protruding to one side at the upper end of the cylindrical shaft 28.
6, a planetary gear 24 screwed to the sun gear 14A is rotatably supported by a rotating plate 26, and further, the planetary gear 24 is connected to the upstream side X of the sorting body 1 in the feed direction.
A crankshaft 23 supporting one end is mounted eccentrically with respect to the center of the planetary gear 24.

In the above configuration, when the driving force of the electric motor 19 is transmitted and the pulley 27 rotates, as shown in FIG. 7, the center of the planetary gear 24 and the sun gear 14A are screwed with the sun gear 14A in a state of drawing a circular locus a. At the same time, the center of the crankshaft 23 is aligned with the planetary gear 2
An ellipse locus b is drawn because it is eccentric with respect to 4. When the planetary gear 24 makes a round around the sun gear 14A, the planetary gear 24 makes two revolutions, and the ratio between the number of teeth and the diameter of the planetary gear 24 and the sun gear 14A is set so as to accurately draw an elliptical locus b. And the degree of eccentricity of the elliptical locus b from a perfect circle is
It is set by the mounting position of the crankshaft 23 to the planetary gear 24.

The four hanging members 12 and 13 include a weight supporting hanging member 13 for supporting the weight of the sorting body 1 and a sorting body 1.
Absorbing suspending device 12 for absorbing deformation distortion caused by rocking
It is composed of Specifically, 2 is located on one diagonal of the two diagonals of the quadrangular sorting body 1.
The corners (upper right and lower left in FIG. 5) are suspended by the weight support suspending device 13 and two corners (FIG. 5) located on other diagonal lines.
The upper left and lower right) are suspended by the strain absorbing suspenders 12.

The strain absorbing suspending tool 12 has an extendable portion S which can extend and contract in the suspending direction. Specifically, as shown in FIG. 8, the suspending tool 12 is separated into an upper portion 12A and a lower portion 12B, and an outer peripheral surface of a cylindrical portion 30 provided on a lower end side of the upper portion 12A, and a lower portion. A cylindrical elastic portion 31 made of hard rubber or the like is arranged between the cylindrical portion 32 provided on the upper end side of the upper portion 12B and the upper portion 12B by fusion or the like. Is fixed to the outer circumference of the cylindrical portion 30 and the inner circumference of the cylindrical portion 32 of the lower portion 12B.

That is, when a force due to deformation of the sorting body 1 is applied in the hanging direction (longitudinal direction) of the strain absorbing suspending tool 12, the upper portion 12A and the lower portion 12B are connected by the elastic portion S. Therefore, it can be relatively displaced and expanded and contracted, and the deformation distortion of the sorting body 1 is absorbed.

The mixture contains a non-granular body (straw, etc.) having a larger shape than brown rice or paddy and a smaller specific gravity. With the swing of the sorting body 1, the cylindrical body 6,
When the receiving hopper 4 and the guide body 5 swing together with the sorting body 1, the non-granular body having a large shape and a small specific gravity floats in the guide body 5, and the sorting movement direction is increased. They are gathered on the lower side Y2 in Y (above the entrance where the opening area is larger than the other) (see FIG. 9). Then, the collected non-granular bodies flow into only the guide passage 5a having an opening area larger than the others, and are supplied to the uppermost sorting body 1.

Therefore, the non-granular material flows into the guide passage 5a having a small entrance opening area, and the guide passage 5a
To prevent clogging. In addition, by increasing the opening area only at the entrance of the guide passage 5a connected to the uppermost sorting body 1, the supply section A can be made compact while preventing the non-granular material from clogging the guide passage 5a. It is designed to be lightweight. In addition, since the non-granular material is supplied to the uppermost sorting body 1 in a concentrated manner, the operator only needs to monitor only the uppermost sorting body 1 which is easy to monitor. The body can be easily removed.

[Alternative Embodiment] In the above embodiment, the expansion and contraction portion S provided on the strain absorbing suspension member 12 is made of an elastic rubber material, but may be a mechanical spring or the like.

The oscillating means N is not limited to a structure in which one end of the sorting body 1 is eccentrically rotated and the other end is movably supported by a lever as in the above embodiment.

The shape of the sorting body 1 is not limited to a quadrangle.
The configuration of the weight supporting and strain absorbing suspenders is appropriately changed according to the shape of the sorting body 1. The arrangement of the strain absorbing suspenders in the case of the quadrangular sorting body 1 is not limited to that of the above-described embodiment. For example, only one of the four corners may be provided with the strain absorbing suspenders, The three corners may be provided with suspenders for weight support.

In addition, a sorting device for sorting materials to be sorted other than the above-mentioned brown rice sorting device, for example, a mixture (sorted material) other than brown rice after grain hulling consisting of two or more types of granular materials other than brown rice. The present invention can also be applied to a sorting device for sorting a specific granular material.

[Brief description of the drawings]

FIG. 1 is a plan view showing a sorting body together with a sorting state of an object to be sorted.

FIG. 2 is a longitudinal sectional view of a projection provided on a sorting surface.

FIG. 3 is a front view showing the entire configuration of the sorting device.

FIG. 4 is a side view showing a swinging mechanism of the sorting body.

FIG. 5 is a plan view of the same.

FIG. 6 is a side view showing a main part of the swing mechanism.

FIG. 7 is a plan view showing the movement of the main part of the swing mechanism.

FIG. 8 is a longitudinal sectional side view showing a suspension device for strain absorption.

FIG. 9 is a rear view of a main part of a sorting device showing a configuration of a guide body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sorting body 1A Sorting surface 12 Hanging tool for strain absorption 13 Hanging tool for weight support 15 Swing drive mechanism 17 Swing pivot support mechanism F Fixed frame N Swing means S Stretchable part

Claims (4)

[Claims] 1. A sorting body for swinging and sorting an object to be sorted mounted on a sorting surface is hung by a plurality of hanging tools on a fixed frame in an inclined posture, and the sorting body is moved along the direction of the sorting surface. A sorting device provided with a swinging means for swinging and swinging, wherein the plurality of hanging tools are a weight support hanging tool for supporting the weight of the sorting body, and a deformation strain caused by swinging of the sorting body. And a strain-absorbing suspending device for absorbing strain. 2. The sorting apparatus according to claim 1, wherein the strain absorbing suspending device has an extendable portion that can extend and contract along a suspending direction. 3. The selection body is formed in a quadrangular shape in a plan view, and two corners located on one diagonal of two diagonals of the quadrangular selection body are the suspension for weight support. The sorting device according to claim 1, wherein the sorting device is suspended by a tool, and two corners located on other diagonal lines are suspended by the strain absorbing hanging tool. 4. The swinging means, while transporting the object to be sorted in a predetermined feed direction, sorts an upstream side portion of the sorting body in the feed direction so as to sort in a sorting direction different from the feed direction. A swing drive mechanism for swinging so as to draw an oval trajectory, and a swing pivot for pivotally supporting a lower portion of the sorting body in the feed direction along the feed direction. The sorting device according to claim 1, further comprising a mechanism.