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JP4150106B2 - Waste sorting device in recycling system - Google Patents

Waste sorting device in recycling system Download PDF

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Publication number
JP4150106B2
JP4150106B2 JP15934898A JP15934898A JP4150106B2 JP 4150106 B2 JP4150106 B2 JP 4150106B2 JP 15934898 A JP15934898 A JP 15934898A JP 15934898 A JP15934898 A JP 15934898A JP 4150106 B2 JP4150106 B2 JP 4150106B2
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Japan
Prior art keywords
waste
conveying
sorting
transport
conveyor
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JP15934898A
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Japanese (ja)
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JPH11347495A (en
Inventor
邦彦 辻
寛 相馬
晃弘 大山
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J Morita Corp
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J Morita Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、廃棄物のリサイクルシステムにおいて、例えば回収されたびんやペットボトル、破砕された電気製品などの廃棄物(以下単に「廃棄物」という)を資源として再利用するため、資源としての規格に合致しているかどうかを選別する廃棄物の選別装置に関する。
【0002】
【従来の技術】
従来から廃棄物の選別装置はびんやペットボトルなどを回収し、この回収されたびんなどは整列搬送手段に供給して整列させ、画像処理装置、色センサー、材質センサーなどの識別手段を通過させることにより、このびんなどの色、形状あるいは材質を識別し、選別された廃棄物はそれぞれ特定の排出口から排出させ回収されるものである。
【0003】
【発明が解決しようとする課題】
ところが、廃棄物を選別するとき、回収されたびんやペットボトルの汚れ、びんの姿勢によるラベルの状態、複数のびんの重なり状態などにより、画像処理装置、色センサーなどの識別手段が誤認識するため選別が正確に作動せず、ときには判定不能になることがある。その対策として、この画像処理装置などの選別手段の選別精度を上げて選別基準を厳しく設定すると判定漏れが増加し、びんなどの回収率が低下し、そのため、将来資源として再利用できる規格に合う廃棄物まで廃棄してしまう結果になる。逆に、回収率を高めようと選別基準を緩和すると選別精度は低下し、規格外の廃棄物まで回収してしまうことになる。
【0004】
そこで、本発明の目的は選別精度が高く、かつ規格に合致する廃棄物をできる限り高い回収率で回収できる廃棄物の選別装置を提供することにある。
【0005】
【課題を解決するための手段】
上記の問題点を解決するために、本発明に係るリサイクルシステムにおける廃棄物の選別装置の特徴は、廃棄物供給手段と、廃棄物の整列搬送手段と、識別手段と、排出手段を有する搬送手段と、リターン搬送手段と、選択手段とからなり、上記廃棄物の整列搬送手段は、上記廃棄物供給手段に連設してあり、上記識別手段は、上記整列搬送手段によって整列された廃棄物を色、形状などを識別するものであり、上記排出手段を有する搬送手段は、この廃棄物の整列搬送手段に連設してあり上記識別手段により選別された廃棄物を選別ごとに排出するものであり、上記リターン搬送手段は、上記搬送手段により搬送された廃棄物を上記整列搬送手段に循環して搬送するものであり、上記選択手段は、上記搬送手段の排出側に揺動可能に設けたシュートであって、このシュートを定期的に揺動させ、このシュートに上記搬送手段によって搬送されてきた上記廃棄物が移動する状態にして、この廃棄物を排出するものであり、上記廃棄物を排出するときには、上記廃棄物供給手段を停止させるところにある。
【0006】
【発明の実施の形態】
そこで、図面を参照して本発明に係るリサイクルシステムにおける廃棄物の選別装置の実施の形態を説明すると、図1、図2に示すように、本発明は、廃棄物の供給手段1と、整列搬送手段2と、識別手段(選別手段)3と、排出手段41を有する搬送手段4と、リターン搬送手段5と、選択手段6とにより構成されている。そこで、次に各手段1〜6の構成を説明する。
【0007】
廃棄物の供給手段である供給コンベア1は、回収された廃棄物を識別手段3に供給するもので、この搬送コンベアの他にもホッパーなどが適宜選択適用される。 供給コンベア1の下流側には廃棄物の整列搬送手段2が連設してあり、図3,図4に示す例によると、回収されたビンAやボトルを一列に整列させ選別を容易確実にした状態で搬送するものである。この整列搬送手段2の構成は、並列に配設された2つのコンベア部21,21からなり、この両コンベア部は相互に内方に傾斜してほぼV字状になっている。コンベア部21、21はそれぞれ駆動モータMにより走行駆動されるものである。
【0008】
整列搬送手段2の下流には搬送手段たる搬送コンベア4が連設してあり、この搬送コンベア上には識別手段である画像処理手段3が設けてある。
【0009】
識別手段の1つである画像処理手段3は、整列搬送手段2によって整列され搬送コンベア4で搬送されてくる廃棄物Aを、その色、形状など一定の選別規格の基準に合致するかどうかを画像処理により識別し選別するものである。
【0010】
搬送コンベア4には画像処理手段2により選別された廃棄物を規格ごと分離して排出する複数の排出手段41、41が所定間隔ごとに設けてあるもので、排出手段41の構成は、図5に示すように、搬送コンベア4の一側には所定間隔をおいて複数のエア噴射ノズル41aが設置してあり、他側にはこの各エア噴射ノズルのそれぞれに対向する位置関係に排出シュート41bとこのシュートから供給される廃棄物を排出し回収する排出口41cが設置してある。
【0011】
画像処理手段3により規格外のものと識別され選別された廃棄物Aは、図1に示すように、搬送コンベア4により搬送され、再び整列搬送手段2にリターンされ循環して供給されるが、この循環用の搬送手段としてリターンコンベア5が設置してある。
【0012】
搬送コンベア4の排出側には、選択手段であるシュート6が揺動可能に設けてあり、このシュートは規格外の廃棄物を強制的に排出する場合と、リターンコンベア5により整列搬送手段2に再び循環させるか、いずれかを選択するものである。
【0013】
次に、本発明の作動について説明する。
【0014】
図1において、供給コンベア1により廃棄物Aは整列搬送手段2に供給される。ここで、図3に示すようにコンベア部21、21により廃棄物Aは一列に整列される。整列された状態の廃棄物Aは、画像処理装置3により色彩、形状などが資源として再利用できるか否か、つまり選別の規格基準に合致するかどうかを識別することにより選別され、この規格に合致するものはエア噴射ノズル41aにより噴射され、シュート41bを介して排出口41cから排出され回収される。画像処理装置3の選別精度はそれ程厳格ではないが、選別速度はなるべく早くなるように設定してある。例えば、廃棄物Aが重なっている状態で画像処理装置3に搬送されたものは、この段階では規格外のものとして選別され、排出口41cから排出、回収されることなく、そのまま搬送コンベア4により搬送され、リターンコンベア5により循環される。そのため、この段階の選別確率を、仮に規格に合致する廃棄物の中のほぼ90%程度とすれば、この規格外と選別された10%の廃棄物の中には規格に合致しているものも当然含まれている。この規格外と識別された廃棄物Aは搬送コンベア4の端部から落下してリターンコンベア5により再び整列搬送手段2に供給される。この整列搬送手段2により整列された廃棄物Aは再び画像処理装置3により選別されるが、この時、廃棄物が重なっていなければ、画像処理装置3により正確に選別され、所定のエア噴射ノズル41aで噴射され排出口41cから排出され回収される。このよう循環行程を2,3回行うと全ての廃棄物Aは規格に合致するか否か選別され、規格に合致するものは全て回収される。したがって、廃棄物Aの選別精度は極めて高くなる。
【0015】
そして、定期的にシュータ6を揺動させて図2の状態にすると、複数回の循環行程においても規格外と選別され、資源としては再利用できない廃棄物Aは、このシュートから強制的に排出される。この時、供給手段を停止させることにより、新規の廃棄物の素通りを防止することができる。
【0016】
【発明の効果】
本発明によると、廃棄物が規格に合致するかどうかの選別を高精度で行うことができるにも拘らず、この選別処理速度は早く、この規格に合致するものは全て確実に回収され、回収規格外のものだけを廃棄することができる。
【図面の簡単な説明】
【図1】 廃棄物を循環させて選別している状態を示す正面図である。
【図2】 廃棄物が選別された後規格外のものを廃棄する状態を示す平面図である。
【図3】 廃棄物の整列搬送装置の正面図である。
【図4】 廃棄物の整列搬送装置の平面図である。
【図5】 廃棄物の規格の合致するものを回収する排出手段の平面図である。
【符号の説明】
1 供給手段(供給コンベア)
2 整列搬送手段
21 コンベア部
3 識別手段(画像処理装置)
4 搬送手段(搬送コンベア)
41 排出手段
5 リターン搬送手段(リターンコンベア)
6 選択手段(シュート)
[0001]
BACKGROUND OF THE INVENTION
In the waste recycling system, for example, waste such as collected bottles, PET bottles, and crushed electrical products (hereinafter simply referred to as “waste”) is reused as a resource. The present invention relates to a waste sorting apparatus that sorts out whether or not it matches.
[0002]
[Prior art]
Conventionally, waste sorting devices collect bottles, PET bottles, etc., and these collected bottles are supplied to an alignment transport means to be aligned and passed through identification means such as an image processing device, a color sensor, and a material sensor. Thus, the color, shape, or material of the bottle or the like is identified, and the sorted waste is discharged from a specific discharge port and collected.
[0003]
[Problems to be solved by the invention]
However, when sorting waste, identification means, such as image processing devices and color sensors, misrecognize due to collected bottles, dirty PET bottles, the state of the label depending on the posture of the bottle, the overlapping state of multiple bottles, etc. Therefore, the sorting does not work correctly, and sometimes the determination is impossible. As countermeasures, if the selection accuracy of the image processing device or the like is increased and the selection criteria are set strictly, the omission of judgment increases and the recovery rate of bottles and the like decreases. The result is that even the waste is discarded. Conversely, if the sorting criteria are relaxed in order to increase the collection rate, the sorting accuracy will drop and even non-standard waste will be collected.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to provide a waste sorting apparatus that has a high sorting accuracy and can collect waste that conforms to a standard at a collection rate as high as possible.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the waste sorting apparatus in the recycling system according to the present invention is characterized by a waste supply means, a waste alignment transport means, an identification means, and a transport means having a discharge means. And a return conveying means and a selecting means, wherein the waste aligning and conveying means is connected to the waste supplying means, and the identifying means is configured to receive the waste arranged by the aligning and conveying means. The conveying means having the discharging means is connected to the waste sorting and conveying means and discharges the waste sorted by the identifying means for each sorting. There, the return transport means, the waste conveyed by the conveying means is intended to convey circulating in the alignment conveyor means, we said selection means, provided swingably to the discharge side of the conveying means The chute is periodically swung so that the waste transported by the transport means moves to the chute, and the waste is discharged. When discharging, the waste supply means is stopped .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the waste sorting apparatus in the recycling system according to the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the present invention is arranged with the waste supply means 1 and aligned. The conveyance means 2, the identification means (sorting means) 3, the conveyance means 4 having the discharge means 41, the return conveyance means 5, and the selection means 6 are configured. Then, the structure of each means 1-6 is demonstrated next.
[0007]
The supply conveyor 1 which is a waste supply means supplies the collected waste to the identification means 3, and a hopper or the like is appropriately selected and applied in addition to the transport conveyor. A waste aligning / conveying means 2 is connected downstream of the supply conveyor 1, and according to the example shown in FIGS. 3 and 4, the collected bins A and bottles are aligned in a row so that sorting is easy and reliable. It conveys in the state which carried out. The configuration of the aligning / conveying means 2 includes two conveyor portions 21 and 21 arranged in parallel, and both the conveyor portions are inclined inward from each other and are substantially V-shaped. Each of the conveyor units 21 and 21 is driven by a drive motor M.
[0008]
A conveying conveyor 4 as a conveying means is connected downstream of the aligning and conveying means 2, and an image processing means 3 as an identifying means is provided on the conveying conveyor.
[0009]
The image processing means 3, which is one of the identification means, determines whether or not the waste A aligned by the aligning and conveying means 2 and conveyed by the conveying conveyor 4 meets the criteria of a certain sorting standard such as its color and shape. It is identified and selected by image processing.
[0010]
The conveying conveyor 4 is provided with a plurality of discharging means 41, 41 for separating and discharging the wastes sorted by the image processing means 2 according to the standard, and the configuration of the discharging means 41 is as shown in FIG. As shown in FIG. 2, a plurality of air injection nozzles 41a are installed on one side of the conveyor 4 at a predetermined interval, and the discharge chute 41b is positioned on the other side so as to face each of the air injection nozzles. And a discharge port 41c for discharging and collecting the waste supplied from the chute.
[0011]
As shown in FIG. 1, the waste A that has been identified and sorted out by the image processing means 3 is transported by the transport conveyor 4 and returned to the alignment transport means 2 to be circulated and supplied. A return conveyor 5 is installed as a circulating conveying means.
[0012]
On the discharge side of the conveyer 4, a chute 6 as a selection means is swingably provided. This chute forcibly discharges nonstandard waste, and the return conveyer 5 moves the aligner to the aligning and conveying means 2. Either recirculate or select one.
[0013]
Next, the operation of the present invention will be described.
[0014]
In FIG. 1, the waste A is supplied to the aligning and conveying means 2 by the supply conveyor 1. Here, as shown in FIG. 3, the waste A is aligned in a row by the conveyor portions 21, 21. The sorted waste A is selected by the image processing apparatus 3 by identifying whether the color, shape, etc. can be reused as a resource, that is, whether it matches the standard specification for selection. Those that match are jetted by the air jet nozzle 41a, discharged from the outlet 41c through the chute 41b, and collected. Although the sorting accuracy of the image processing apparatus 3 is not so strict, the sorting speed is set to be as fast as possible. For example, what is transported to the image processing apparatus 3 in a state where the waste A is overlapped is selected as a non-standard product at this stage, and is directly discharged by the transport conveyor 4 without being discharged and collected from the discharge port 41c. It is conveyed and circulated by the return conveyor 5. Therefore, if the sorting probability at this stage is about 90% of the waste that meets the standard, 10% of the waste sorted out of this standard will meet the standard. Is also included. The waste A identified as non-standard falls from the end of the transport conveyor 4 and is supplied again to the alignment transport means 2 by the return conveyor 5. The waste A aligned by the aligning / conveying means 2 is again sorted by the image processing device 3. At this time, if the waste does not overlap, it is sorted accurately by the image processing device 3, and a predetermined air jet nozzle It is injected at 41a and discharged from the discharge port 41c and collected. If the circulation process is performed two or three times as described above, all the waste A is selected as to whether or not it meets the standard, and all those that meet the standard are collected. Therefore, the sorting accuracy of the waste A is extremely high.
[0015]
If the shooter 6 is periodically swung to the state shown in FIG. 2, the waste A that is selected as non-standard even in a plurality of circulation processes and cannot be reused as resources is forcibly discharged from the chute. Is done. At this time, it is possible to prevent passage of new waste by stopping the supply means.
[0016]
【The invention's effect】
According to the present invention, despite the fact that it is possible to sort out whether or not the waste meets the standard, the sorting speed is fast, and all those that meet the standard are reliably collected and collected. Only non-standard items can be discarded.
[Brief description of the drawings]
FIG. 1 is a front view showing a state in which waste is circulated and sorted.
FIG. 2 is a plan view showing a state in which non-standard items are discarded after the waste is sorted.
FIG. 3 is a front view of a waste aligning and conveying apparatus.
FIG. 4 is a plan view of a waste aligning and conveying apparatus.
FIG. 5 is a plan view of a discharging means for collecting wastes that meet the waste standard.
[Explanation of symbols]
1 Supply means (supply conveyor)
2 Aligning and conveying means 21 Conveyor section 3 Identification means (image processing apparatus)
4 Transport means (transport conveyor)
41 Discharging means 5 Return conveying means (return conveyor)
6 Selection means (shoot)

Claims (1)

廃棄物供給手段と、廃棄物の整列搬送手段と、識別手段と、排出手段を有する搬送手段と、リターン搬送手段と、選択手段とからなり、
上記廃棄物の整列搬送手段は、上記廃棄物供給手段に連設してあり、
上記識別手段は、上記整列搬送手段によって整列された廃棄物を色、形状などを識別するものであり、
上記排出手段を有する搬送手段は、この廃棄物の整列搬送手段に連設してあり上記識別手段により選別された廃棄物を選別ごとに排出するものであり、
上記リターン搬送手段は、上記搬送手段により搬送された廃棄物を上記整列搬送手段に循環して搬送するものであり、
上記選択手段は、上記搬送手段の排出側に揺動可能に設けたシュートであって、このシュートを定期的に揺動させ、このシュートに上記搬送手段によって搬送されてきた上記廃棄物が移動する状態にして、この廃棄物を排出するものであり、
上記廃棄物を排出するときには、上記廃棄物供給手段を停止させる
ことを特徴とするリサイクルシステムにおける廃棄物の選別装置。
It comprises a waste supply means, a waste alignment transport means, an identification means, a transport means having a discharge means, a return transport means, and a selection means.
The waste alignment means is connected to the waste supply means,
The identification means identifies the color, shape, etc. of the waste arranged by the alignment conveying means,
The conveying means having the discharging means is connected to the waste aligning and conveying means and discharges the waste sorted by the identifying means for each sorting,
The return transport means circulates and transports the waste transported by the transport means to the alignment transport means,
The selection means is a chute provided on the discharge side of the conveying means so as to be able to swing, and periodically swings the chute, and the waste conveyed by the conveying means moves to the chute. In order to discharge this waste,
A waste sorting apparatus in a recycling system , wherein when the waste is discharged, the waste supply means is stopped .
JP15934898A 1998-06-08 1998-06-08 Waste sorting device in recycling system Expired - Lifetime JP4150106B2 (en)

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US11734526B2 (en) 2017-04-18 2023-08-22 Berkshire Grey Operating Company, Inc. Systems and methods for distributing induction of objects to a plurality of object processing systems
US11842248B2 (en) 2017-04-18 2023-12-12 Berkshire Grey Operating Company, Inc. Systems and methods for processing objects including space efficient distribution stations and automated output processing
US11847513B2 (en) 2017-04-18 2023-12-19 Berkshire Grey Operating Company, Inc. Systems and methods for separating objects using vacuum diverts with one or more object processing systems
US11868840B2 (en) 2017-04-18 2024-01-09 Berkshire Grey Operating Company, Inc. Systems and methods for separating objects using a vacuum roller with one or more object processing systems
US12099895B2 (en) 2017-04-18 2024-09-24 Berkshire Grey Operating Company, Inc. Systems and methods for limiting induction of objects to one or more object processing systems

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JP3413532B2 (en) * 1993-12-28 2003-06-03 石川島播磨重工業株式会社 Glass bottle feeding device
JPH1094762A (en) * 1996-09-20 1998-04-14 Nkk Corp Waste container sorter

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US20220043991A1 (en) * 2017-04-18 2022-02-10 Berkshire Grey, Inc. Systems and methods for separating objects using drop conveyors with one or more object processing systems
US11681884B2 (en) 2017-04-18 2023-06-20 Berkshire Grey Operating Company, Inc. Systems and methods for separating objects using conveyor transfer with one or more object processing systems
US11734526B2 (en) 2017-04-18 2023-08-22 Berkshire Grey Operating Company, Inc. Systems and methods for distributing induction of objects to a plurality of object processing systems
US11748584B2 (en) * 2017-04-18 2023-09-05 Berkshire Grey Operating Company, Inc. Systems and methods for separating objects using drop conveyors with one or more object processing systems
US11842248B2 (en) 2017-04-18 2023-12-12 Berkshire Grey Operating Company, Inc. Systems and methods for processing objects including space efficient distribution stations and automated output processing
US11847513B2 (en) 2017-04-18 2023-12-19 Berkshire Grey Operating Company, Inc. Systems and methods for separating objects using vacuum diverts with one or more object processing systems
US11868840B2 (en) 2017-04-18 2024-01-09 Berkshire Grey Operating Company, Inc. Systems and methods for separating objects using a vacuum roller with one or more object processing systems
US12099895B2 (en) 2017-04-18 2024-09-24 Berkshire Grey Operating Company, Inc. Systems and methods for limiting induction of objects to one or more object processing systems
US12106175B2 (en) 2017-04-18 2024-10-01 Berkshire Grey Operating Company, Inc. Systems and methods for separating objects using conveyor transfer with one or more object processing systems
US12112229B2 (en) 2017-04-18 2024-10-08 Berkshire Grey Operating Company, Inc. Systems and methods for distributing induction of objects to a plurality of object processing systems

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