JP7120793B2 - Green soybean sorting machine - Google Patents

Description

Article 30, Paragraph 2 of the Patent Law applies Date of sale: February 26, 2018 Place of sale: Yamagata Pack Co., Ltd. (2-14-60 Hanataten, Yamagata City)

TECHNICAL FIELD The present invention relates to an edamame sorting apparatus, and more particularly to an edamame sorting apparatus using a vibrating conveyor.

Conventionally, there has been proposed an edamame sorting apparatus for removing defective products from harvested edamame before shipment (see Patent Documents 1 and 2, etc.). The green soybean sorting apparatuses described in Patent Documents 1 and 2 are apparatuses for transporting and sorting green soybeans by vibrating the whole conveying and sorting body in a posture inclined in the transport direction. This green soybean sorting device employs a plurality of V-shaped guide grooves arranged side by side in the conveying and sorting body, and drops a single pod from a sorting gap provided at the end in the conveying direction. . For this reason, in this green soybean sorting apparatus, a dam (guide plate 9, sorting body 3) is provided at the end of the sorting gap so that the short pod cannot get over.

JP 2016-195971 A JP-A-05-276916

However, as a result of experiments conducted by the present inventors, it was found that the green soybean sorting apparatuses disclosed in Patent Documents 1 and 2 cannot sort green soybeans with sufficient accuracy, and that there is still room for improvement.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an green soybean sorting apparatus using a vibrating conveyor capable of sorting green soybeans with high accuracy.
It is another object of the present invention to provide an green soybean sorting apparatus having a configuration that facilitates keeping the width of the vibrating conveyor compact.
It is another object of the present invention to provide an edamame sorting apparatus configured to facilitate adjustment of a threshold value for sorting determination.

In order to solve the above-mentioned problems, the invention according to claim 1 provides an edamame sorting apparatus for sorting edamame, comprising a shaking table for conveying the thrown-in edamame forward by a vibrating conveyor, wherein the shaking table is used for sorting edamame. A mesh-shaped diffusing part into which the previous edamame is fed, a sorting part connected to the diffusing part for sorting the edamame, and a discharge part connected to the sorting part for conveying the sorted edamame are provided. In the sorting section, a plurality of round bars are arranged in parallel, the height positions on the upstream side are uniform, and the heights on the downstream side are alternately arranged, and dimensional defects are detected from the gaps between the round bars on the downstream side. Provided is an green soybean sorting apparatus that sorts green soybeans by dropping the green soybeans. The edamame with defective dimensions includes at least one of edamame with a single pod, edamame with immature pods, and parts other than pods (such as branches).
In order to solve the above-mentioned problems, the invention according to claim 2 provides an edamame sorting apparatus for sorting green soybeans, comprising a shaking table for transporting the thrown green soybeans forward by a vibrating conveyor, wherein the shaking table is used for sorting green soybeans. A diffusing unit for feeding the edamame before the edamame, a sorting unit connected to the diffusing unit for sorting the edamame, and a discharge unit connected to the sorting unit for conveying the edamame after sorting are provided, and the sorting In the part, multiple round bars are arranged in parallel, the height position of the upstream side is uniform, and the height of the downstream side is alternately arranged, and edamame with defective dimensions is dropped from the gap between the round bars on the downstream side. The green soybean sorting apparatus is provided in which the sorting is performed by shaking the shake table, and a defective product discharge port for discharging the edamame with defective dimensions dropped from the sorting section is provided on the downstream side of the shaking table.
In order to solve the above-mentioned problems, the invention according to claim 3 provides an edamame sorting apparatus for sorting edamame, comprising a shaking table for conveying the thrown-in edamame forward by a vibrating conveyor, wherein the shaking table comprises: A diffusing unit for feeding the edamame before the edamame, a sorting unit connected to the diffusing unit for sorting the edamame, and a discharge unit connected to the sorting unit for conveying the edamame after sorting are provided, and the sorting In the part, a plurality of tapered round bars are arranged in parallel toward the downstream side, and the height position on the upstream side is uniform, and the height on the downstream side is alternately changed, and the gap between the round bars on the downstream side is arranged. To provide an green soybean sorting device for sorting green soybeans by dropping green soybeans having defective dimensions from a pit.

In order to solve the above problems, the invention according to claim 4 is the green soybean sorting apparatus according to any one of claims 1 to 3 , wherein a plurality of the sorting units are arranged in series. do.

In order to solve the above-mentioned problems, the invention according to claim 5 is a sorting unit structure of an edamame sorting apparatus for sorting out edamame with defective dimensions by vibration, in which a plurality of tapered round bars are arranged in parallel toward the downstream side . In addition, the height position on the upstream side is uniform, the height on the downstream side is alternately arranged, and the edamame with defective dimensions is dropped from the gap between the round bars on the downstream side to perform the sorting. To provide a sorting part structure of an edamame sorting device.

According to the green soybean sorting apparatus according to the present invention, since a plurality of round bars are arranged in parallel in the sorting section of the shaking table, the arrangement of the round bars acts as a guide groove to align the green soybeans during transportation. can. Since a difference is provided in the height of the downstream side of the round bars adjacent to each other, a gap in the height direction is formed between the round bars that are adjacent to each other and gradually increases toward the downstream side. Therefore, the round bars adjacent to each other drop edamame beans with defective dimensions (edamame beans with single pods, edamame beans with immature pods, and parts other than pods (branches, etc.)) mixed in the edamame being transported in ascending order of size. There is an effect that it can be eliminated. Moreover, since a gap in the height direction that expands toward the downstream side is secured between the round bars adjacent to each other, there is an advantage that the sorting effect can be reliably obtained without enlarging the gap in the width direction of the round bars. be. Furthermore, there is also the advantage that the maximum size of edamame beans with defective dimensions to be excluded, that is, the threshold for sorting judgment, can be easily adjusted simply by adjusting the height difference on the downstream side of the round bars adjacent to each other.

Further, when at least two sorting units (here, referred to as an upstream sorting unit and a downstream sorting unit) are arranged in series with a gap therebetween, dimensional defects that could not be eliminated by the upstream sorting unit Edamame can be removed in the gap in front of the downstream side sorting section, and edamame beans with defective dimensions that could not be removed in the gap can be removed in the gap between the round bars in the downstream side sorting section.

Further, when the diffusing portion is formed in a mesh shape, there is an effect that the green soybeans before being sorted can be diffused over a wide range and unnecessary substances (such as sand) can be removed before being introduced into the sorting portion.

Further, when the defective product discharge port is provided on the downstream end side of the shaking table, there is an effect that edamame with defective dimensions can be collectively discharged.

Further, when the round bars are tapered toward the downstream side, there is an effect that the difference between the upstream side and the downstream side of the gap generated between the round bars in the sorting section can be easily increased.

1 is a side view of a system including an embodiment of an edamame sorting apparatus according to the present invention; FIG. 2 is a top view of a system including the green soybean sorting apparatus shown in FIG. 1; FIG. It is a side view of an edamame sorting apparatus. It is a top view of an green soybean sorting apparatus. (A) is a schematic side view of the sorting section, and (B) is a schematic plan view of the sorting section.

An edamame conveying apparatus according to the present invention will be described in detail below based on a preferred embodiment.
[System configuration]
FIG. 1 is a side view of a system including an embodiment of the green soybean sorting apparatus according to the present invention, and FIG. 2 is a top view of the system including the green soybean sorting apparatus shown in FIG. The direction indicated by reference numeral F in FIGS. 1 and 2 is the edamame conveying direction (forward) (the same applies to other drawings). As shown in FIGS. 1 and 2, the system 1 of the present embodiment includes, in order from the upstream side in the conveying direction F, an edamame sorting device 10 for removing edamame with defective dimensions using a vibrating conveyor, A color sorting device 20 for removing green soybeans, an inclined conveyor 30 for conveying non-defective green soybeans after sorting, and a visual sorting conveyor 40 are arranged in series. In addition, at least one of edamame with a single pod, edamame with immature pods, and portions other than pods (such as branches) is included in the “edamame with defective dimensions”. However, in the system 1 of the present embodiment, the unsorted green soybeans are sorted to sequentially remove single-pod green soybeans, immature green soybeans, non-pod parts (branches, etc.), and the remaining green soybeans (finally quality green soybeans).

[Configuration of green soybean sorting device]
FIG. 3 is a side view of the green soybean sorting device 10. As shown in FIG. As shown in FIG. 3, the green soybean sorting apparatus 10 generally includes a frame 11 installed on a base such as a floor, a trough 12 as a shaking table, and a trough fixed to the frame 11 and through the frame 11. 12, a control device 14 for controlling the vibration motor 13, a vibration plate spring 15 interposed between the frame 11 and the trough 12, and connected to the frame 11, and A hinge arm 16 is provided to support the trough 12 for vibration.

In the above configuration, when the control device 14 drives the vibrating motor 13, the vibrating force of the vibrating motor 13 is transmitted to the trough 12 via the plate spring 15, causing the trough 12 to vibrate. The direction in which the trough 12 vibrates is the direction in which the leaf spring 15 bends, which is the forward obliquely upward direction F' with the transport direction F as the front. Therefore, the edamame placed on the trough 12 repeats the movement of jumping forward and obliquely upward F' and then falling at the same period as the period of vibration. As a result, the green soybeans placed on the trough 12 are sequentially conveyed in the conveying direction F.

At the downstream end of the upper part 12A of the trough 12 is formed a non-defective product outlet 17, and at the downstream side of the lower part 12B of the trough 12, a A defective product discharge port 18 is provided for discharging green soybeans with defective dimensions.
[Configuration of trough upper stage]

FIG. 4 is a plan view of the green soybean sorting apparatus 10. As shown in FIG. The green soybean sorting apparatus 10 includes a trough 12 as a vibrating table for conveying the thrown green soybeans forward by a vibrating conveyor as described above. In the upper part 12A of the trough 12, in order from the upstream side, a mesh-like diffusion part 121 into which green soybeans before sorting are put, and a plurality of sorting parts (here, and a flat discharge section 124 that is connected to the two sorting sections 122 and 123 and conveys the sorted edamame to the color sorting device 20 side. Although two sorting units 122 and 123 are provided in this embodiment, one or three or more can be provided. The green soybeans (green soybeans before sorting) fed into the diffusion part 121 of the trough 12 are basically separated from the branches after harvesting, and include green soybeans with poor color and size. .

The upstream sorting unit 122 and the downstream sorting unit 123 provided in the trough 12 are separated from each other by a gap G for dropping edamame with a defective size (for example, edamame with a single pod) to the lower part 12B of the trough 12. are arranged in series. In the illustrated example, a strip-shaped flat plate 125 is arranged between the sorting portion 122 and the sorting portion 123, and a gap G is provided between the flat plate 125 and the sorting portion 122 (the flat plate 125 The length in the conveying direction can be set to about 36 mm or more.). In addition, a gap G is also provided in the connecting portion between the downstream sorting portion 123 and the discharge portion 124 to drop edamame with a defective size (for example, edamame with a single pod) to the lower portion 12B of the trough 12. . Further, the gap between the connecting portion between the diffusing portion 121 and the sorting portion 122 and the connecting portion between the flat plate 125 and the sorting portion 123 is very small, and is about 5 mm, which is narrower than the gap G for dropping edamame with a defective dimension. The diffusing portion 121 is a punching plate made of a highly corrosion-resistant material such as stainless steel, and the flat plate 125 and the discharge portion 124 are flat plates made of a highly corrosion-resistant material such as stainless steel. Details of the sorting units 122 and 123 will be described later.
[Configuration of Sorting Unit]

FIG. 5A is a schematic side view of the sorting section, and FIG. 5B is a schematic plan view of the sorting section, showing the sorting section 122 on the upstream side. Since the configuration of the downstream side sorting section 123 is basically the same as the configuration of the upstream side sorting section 122, the description thereof is omitted here.

As shown in FIGS. 5A and 5B, the sorting unit 122 moves a plurality of long round bars 100 (here, nine round bars 100) in the conveying direction F in the horizontal direction (direction W). They are arranged in parallel at equal intervals, and the height positions on the upstream side are uniform, and the heights on the downstream side are alternately changed. The horizontal interval between the adjacent round bars 100 is set to a width such that at least good green soybeans do not drop when the green soybeans are conveyed. Such a sorting unit 122 aligns and transports green soybeans in the gaps between the round bars 100 adjacent to each other, and picks up edamame beans with defective dimensions (for example, branches, immature pods) from the gaps in which the round bars 100 on the downstream side are shifted in the height direction. Edamame (green soybeans) are also sorted by dropping them into the lower part 12B of the trough 12. FIG. A highly corrosion-resistant material such as stainless steel is used for each of the nine round bars 100A and 100B. Also, the number of round bars 100A and 100B is not limited to nine, and any appropriate number can be provided.

As shown in FIGS. 5A and 5B, each of the nine round bars 100 is fixed to the trough 12 by, for example, fixing bolts 10c and nuts (not shown). Five round bars 100B arranged in odd numbers among them are arranged in a posture along the horizontal plane P, and four round bars 100A arranged in even numbers among the nine round bars 100 are round bars An intersection O of an imaginary straight line extending in the width direction W of the trough 12 at the position of the fixing bolt 10c arranged on the proximal side with respect to the axis line, which is the imaginary center line extending in the longitudinal direction of the central portion of the trough 100B. is arranged in a posture in which the round bar 100B is inclined by an angle .theta. Although the inclination angle θ depends on the length of the round bars 100A and 100B, for example, when the length is about 300 mm, the center position of the end surface at the downstream end is about It is placed 8mm higher. Moreover, each of the round bars 100A and 100B can also be tapered, that is, conical, gradually narrowing toward the downstream side. However, the taper is not shown in FIG.
[Effects of Embodiment]

In the green soybean sorting apparatus 10 described above, a plurality of round bars 100 are arranged in parallel in each of the sorting portions 122 and 123 of the trough 12 (see FIG. 4). It works and can adjust the posture of the green soybeans during transportation. The well-arranged posture of green soybeans means a posture in which the direction in which the pods are arranged (longitudinal direction of the green soybeans with two or more pods) coincides with the conveying direction F. ). In the sorting units 122 and 123 of the present embodiment, since a difference is provided in the height of the downstream side of the round bars 100A and 100B adjacent to each other (FIG. 5A), the height between the round bars 100A and 100B adjacent to each other is different. , a gap is formed in the height direction that gradually increases toward the downstream side. Therefore, the gap between the round bars 100A and 100B adjacent to each other prevents edamame with defective dimensions (edamame with a single pod, edamame with immature pods, parts other than pods (branches, etc.)) mixed in the edamame being transported. They can be dropped to the lower part 12B of the trough 12 and removed in ascending order of size. Moreover, since a gap in the height direction that expands toward the downstream side is secured between the round bars 100A and 100B adjacent to each other (FIG. 5(A)), the width direction W of the round bars 100A and 100B increases. There is an advantage that the sorting effect can be reliably obtained without enlarging the gap. Furthermore, in this embodiment, the maximum size of edamame with defective dimensions to be excluded, that is, the threshold for sorting judgment, can be easily adjusted simply by adjusting the height difference on the downstream side of the round bars 100A and 100B adjacent to each other. There is also the advantage of being able to

In addition, in the present embodiment, since the upstream sorting section 122 and the downstream sorting section 123 are arranged in series via the flat plate 125 and the gap G (see FIG. 4), It is possible to prevent edamame from clogging. In addition, edamame beans (for example, single pods) with defective dimensions that could not be eliminated by the upstream sorting unit 122 can be eliminated by the gap G in front of the downstream sorting unit 123, and could not be completely eliminated by the gap G. There is an effect that the green soybeans (for example, immature pods) with dimensional defects can be removed through the gaps between the round bars 100 in the sorting section 123 on the downstream side.

Further, in this embodiment, since the diffusing portion 121 is mesh-like (see FIG. 4), before being introduced into the sorting portion 122, the green soybeans before sorting are diffused over a wide range, and unnecessary substances (sand, etc.) ) can be eliminated.

In addition, in the present embodiment, the defective product discharge port 18 is provided on the downstream end side (discharge portion 124) of the lower stage 12B of the trough 12 (see FIG. 3), so there is an effect that edamame with defective dimensions can be collectively discharged. .

In addition, in this embodiment, since the round bar 100 is tapered toward the downstream side, there is an effect that the gap between the round bars 100A and 100B between the upstream side and the downstream side can be easily increased.
[Example]

Examples of the present embodiment are shown below.
Width of trough 12: 254 mm
Length of round bar 100: 295mm
Diameter of the upstream end of the round bar 100: 13 mm
Diameter of the downstream end of the round bar 100: 12 mm
Arrangement pitch of round bars 100 in width direction W: Uniform Number of arrangement of round bars 100 in width direction W: 13
Distance from upstream end of round bar 100 to axis O: 40 mm
Height difference at downstream ends of round bars 100A and 100B adjacent to each other: 8 mm
[Experimental result]

The selection conditions and experimental results according to this example are shown below.
Raw material: about 53kg
Screening according to example: 5.5 kg
Color sorting: 9.3kg
Sorting by the devices of Patent Documents 1 and 2: 1.6 kg
Person selection (3 persons): 6.5 kg
Total edamame with bad dimensions: 22.9 kg
Non-defective product (packaging product) total 250g x 120P = 30kg
Non-defective product rate: 57%
However, in the experiment, tapered round bars were used as the round bars 100A and 100B.
[Supplement to vibration pattern control]

In the above-described embodiment, the controller 14 can appropriately control at least one of the vibration frequency and amplitude of the vibration motor 13 to increase the edamame conveying speed and sorting speed.
[Supplement about tilt angle adjustment]

In addition, in the above-described embodiment, by making it possible to adjust the inclination angle difference between the round bars 100A and 100B, it is possible to easily adjust the threshold for sorting judgment (maximum size of edamame with defective dimensions to be rejected). . In order to adjust the inclination angle difference, for example, an adjuster for height adjustment may be provided on the tip side of the fixing bolt 100C on the downstream side of at least one of the round bars 100A and 100B.
[Supplementary information about sorting defective products]

Further, in the above-described embodiment, by appropriately adjusting the inclination angle difference of the round bars 100A and 100B in the sorting section 123 and the inclination angle difference in the sorting section 122, the size excluded by the sorting section 123 The maximum size of defective green soybeans and the maximum size of defective green soybeans to be rejected by the sorting unit 122 can be set. Further, in the present embodiment, by appropriately adjusting the gap G between the sorting unit 122 on the upstream side and the sorting unit 123 on the downstream side, the maximum size of edamame with defective dimensions to be excluded in the gap G is set. be able to. By adjusting these parts, for example, branches are mainly dropped from the gap between the round bars 100 adjacent to each other in the sorting part 122 on the upstream side, and single pods are mainly dropped from the gap G between the sorting part 122 and the sorting part 123. It is also possible to drop mainly immature pods from the gaps between the round bars 100 adjacent to each other in the sorting section 123 on the downstream side. In addition, according to the above embodiment, this can be realized.
[Supplementary information about round bar cross section]

Further, in the above-described embodiment, the cross-sectional shape of at least one of the plurality of round bars 100 provided in the sorting units 122 and 123 is not limited to a perfect circle, and may be elliptical or circular. It may be a close polygon (regular pentagon, regular hexagon, regular octagon, regular dodecagon, etc.).
[Supplement to the number of sorting units]

Further, in the above-described embodiment, the number of sorting units arranged in series in the upper stage portion 12A of the trough 12 may be one, or may be three or more. Sorting accuracy can be improved by increasing the number of sorting units.
[Supplementary information about the vibration conveyor]

Further, in the above-described embodiments, any known vibrating conveyor configuration can be adopted as the configuration of the vibrating conveyor. For example, a coil spring can be used instead of the plate spring 14, and the frame 11 can be equipped with a vibration isolation function.
[Other embodiments]

In addition, the present invention is not limited to the above embodiments or examples, and various modifications are possible without departing from or changing the technical idea of the present invention.

REFERENCE SIGNS LIST 1 system 10 green soybean sorting device 11 frame 12 trough 13 vibration motor 14 control device 15 leaf spring 16 hinge arm 17 non-defective product outlet 18 defective product outlet 20 color sorter 30 inclined conveyor 40 visual sorting conveyor 100A round bar 100B round bar 100C Fixing bolt 121 Diffusion part 122 Sorting part 123 Sorting part 125 Flat plate P Horizontal plane O Axis line θ Inclination angle F Conveying direction F' Vibration direction W Width direction

Claims (5)

In the green soybean sorting device for sorting green soybeans,
Equipped with a shaking table that transports the thrown edamame forward by a vibrating conveyor,
The shaking table is
A mesh-like diffusion part for throwing green soybeans before sorting,
a sorting unit connected to the diffusion unit and sorting green soybeans;
a discharge unit that is connected to the sorting unit and conveys sorted green soybeans;
is provided,
In the sorting unit, a plurality of round bars are arranged in parallel, and the height positions on the upstream side are uniform, and the height on the downstream side is alternately arranged. An edamame sorting device, wherein the sorting is performed by dropping the green soybeans. In the green soybean sorting device for sorting green soybeans,
Equipped with a shaking table that transports the thrown edamame forward by a vibrating conveyor,
The shaking table is
a diffusion unit for throwing green soybeans before sorting;
a sorting unit connected to the diffusion unit and sorting green soybeans;
a discharge unit that is connected to the sorting unit and conveys sorted green soybeans;
is provided,
In the sorting unit, a plurality of round bars are arranged in parallel, and the height positions on the upstream side are uniform, and the height on the downstream side is alternately arranged. The sorting is performed by dropping the
An edamame sorting apparatus, characterized in that a defective product discharge port for discharging edamame with defective dimensions dropped from the sorting unit is provided on the downstream side of the shaking table. In the green soybean sorting device for sorting green soybeans,
Equipped with a shaking table that transports the thrown edamame forward by a vibrating conveyor,
The shaking table is
a diffusion unit for throwing green soybeans before sorting;
a sorting unit connected to the diffusion unit and sorting green soybeans;
a discharge unit that is connected to the sorting unit and conveys sorted green soybeans;
is provided,
In the sorting unit, a plurality of tapered round bars that are thinner toward the downstream side are arranged in parallel, the height positions on the upstream side are uniform, and the heights on the downstream side are alternately arranged, and the round bars on the downstream side are arranged in parallel. An edamame sorting apparatus characterized in that the edamame sorting is performed by dropping edamame with defective dimensions through a gap between the edamame. In the green soybean sorting apparatus according to any one of claims 1 to 3 ,
An edamame sorting apparatus, wherein a plurality of the sorting units are arranged in series. A sorting unit structure of an edamame sorting device that sorts edamame with defective dimensions by vibration,
Multiple thin tapered round bars are arranged in parallel toward the downstream side, and the height position on the upstream side is uniform, and the height on the downstream side is alternately changed, and dimensional defects are detected from the gaps between the round bars on the downstream side. The sorting unit structure of an edamame sorting apparatus, wherein the sorting is performed by dropping the edamame.

Images