JPS61216787A - Mechanism deciding, selecting and removing mixed foreign matter - Google Patents
Mechanism deciding, selecting and removing mixed foreign matterInfo
- Publication number
- JPS61216787A JPS61216787A JP60055237A JP5523785A JPS61216787A JP S61216787 A JPS61216787 A JP S61216787A JP 60055237 A JP60055237 A JP 60055237A JP 5523785 A JP5523785 A JP 5523785A JP S61216787 A JPS61216787 A JP S61216787A
- Authority
- JP
- Japan
- Prior art keywords
- sorting
- sorted
- filter
- infrared
- mixed foreign
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims description 20
- 239000000126 substance Substances 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000005484 gravity Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 235000009508 confectionery Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 208000037063 Thinness Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 235000021067 refined food Nutrition 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 206010048828 underweight Diseases 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、選別をしようとする物品中に混入された異物
を判定選別しながらこれらを除去するための機構に関す
るものであり、穀類のような粒状体或いは加工食品であ
る菓子、麺類など異物の混入が表面的に確認することの
できる物品を選別するのに利用するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a mechanism for removing foreign substances mixed into articles to be sorted while determining and sorting them. It is used to sort out products that can be visually confirmed to be contaminated with foreign substances, such as granular materials or processed foods such as confectionery and noodles.
穀類のような粒状体に混入しやすい異物とじては石、軽
石、金属片、土塊等が最も一般的なものとして認識され
ている。このような異物を選別する方法として従来より
採用されていた手段は■適正な物品が有している比重や
重量と、混入されている異物の比重や重量との違いを利
用して機械的な方法で選別排除を行う方法。■適正な物
品が有している色彩と、混入されている異物が有してい
る色彩との色差を利用して色彩を基準とした選別排除を
行う方法。の二つがある。前記した二つの方法のうち、
［機械的な方法による選別Ｊはその文字が示す通り、被
選別物を、計量機能を有する機械の上を通過させ、その
通過時に重量／比重超過或いは重量／比重不足など所定
の計量基準から外れたものを選別対象品として選別排除
するという方法であるが選別適正品と排除対象品（異物
）との間に比重や重量の差があまりない場合には充分な
選別が行われず、選別精度の上で適当ではないことが指
摘されていた、また、「色差を利用した選別」の場合に
は、予め選別をしようとする物品の適正な色彩を表示し
たバンクグラウンドを準備しておき、このバックグラウ
ンドからの反射光の明るさと被選別物の反射光の明るさ
とを比較してその明るさが許容範囲を越えたものを排除
するという構成としている、しかしながら、この色差を
利用した選別の場合にも選別適正品と排除対象品（異物
）との間の色差が大きい場合には有効であるが選別物相
互の色差が比較的小さい場合には充分な選別精度を発揮
することができないという問題点を抱えていた。Stones, pumice, metal pieces, clods of earth, etc. are recognized as the most common foreign substances that tend to get mixed into granular materials such as grains. Conventionally, the methods used to sort out such foreign substances are: ■ Mechanical methods that utilize the difference between the specific gravity and weight of a proper product and the specific gravity and weight of the foreign material that has been mixed in. How to perform screening and exclusion using methods. ■A method of sorting and eliminating based on color by utilizing the color difference between the color of a proper product and the color of a foreign substance mixed in the product. There are two. Of the two methods mentioned above,
[Mechanical sorting method J, as its name suggests, involves passing the objects to be sorted over a machine with a weighing function, and when passing through, it is possible to sort objects that deviate from predetermined measurement standards, such as overweight/specific gravity or underweight/specific gravity. However, if there is not much difference in specific gravity or weight between the products that are suitable for sorting and the products that are to be excluded (foreign materials), sufficient sorting may not be carried out, and the sorting accuracy may be affected. In addition, in the case of "sorting based on color difference," which was pointed out to be inappropriate above, prepare a background displaying the appropriate color of the items to be sorted in advance, and use this background. The system compares the brightness of the reflected light from the ground with the brightness of the reflected light from the object to be sorted, and eliminates those whose brightness exceeds the allowable range. However, in the case of sorting using this color difference, This method is effective when there is a large color difference between a suitable item and an item to be excluded (foreign matter), but the problem is that it cannot achieve sufficient sorting accuracy when the color difference between the items to be sorted is relatively small. was holding.
本発明は、幾つかの物品に光を投射した場合にそれぞれ
の物品から反射する反射光の赤外域の波長の光が異なる
ことに着目し赤外域の反射率の差異を利用することによ
って、粒状物或いはその他の物品の選別を行う場合に、
従来の重量差若しくは比重差を利用した選別や、選別物
と異物との色差を利用した選別方法が存している選別機
能の限界部分での問題を解決しようとするものである。The present invention focuses on the fact that when light is projected onto several articles, the reflected light reflected from each article has different wavelengths in the infrared region, and by utilizing the difference in reflectance in the infrared region, When sorting objects or other items,
This is an attempt to solve problems at the limits of the sorting functions of conventional sorting methods that utilize differences in weight or specific gravity, and methods that utilize color differences between objects to be sorted and foreign objects.
シュートから流下させられる被選別物に投射する光源と
、これらの光源からの投射光のうち赤外域の波長光線（
赤外線）のみを透過させて投射するフィルター、若しく
は前記光源からの投射光を投射させられた被選別物から
の反射光のうち赤外域の波長光線（赤外線）のみを透過
するフィルターと、このフィルターを透過した赤外線を
検出するセンサーと前記センサーによって検出された赤
外域の波長を予め設定された選別基準値に従って選別し
ながら作動するエアーガンその他のエジェクターとを有
している。A light source projects onto the material to be sorted as it flows down from the chute, and among the light projected from these light sources, rays with wavelengths in the infrared range (
A filter that transmits and projects only infrared rays (infrared rays), or a filter that transmits only wavelength rays in the infrared region (infrared rays) of the reflected light from the object to be sorted onto which the projection light from the light source is projected; It has a sensor that detects transmitted infrared rays, and an air gun or other ejector that operates while sorting the wavelengths in the infrared region detected by the sensor according to a preset sorting reference value.
本発明の選別機構は、シュートから観察部に流下させら
れた被選別物に、光源から所定の光を投射し、前記光源
から被選別物に投射された反射光をレンズを通してフィ
ルターに供給し該フィルタ一部分で特定波長域である赤
外域の波長のみを検出させるか、若しくは被選別物に対
して投射する光源からの投射光を予め赤外域の波長のみ
を検出するフィルターを透過させて赤外線波長のみを投
射させる。フィルターを透過した赤外線波長（あるいは
予めフィルターを透過させることによって赤外線波長の
みを被選別物に投射する場合にはその反射光）はセンサ
ーによって検知され電気的信号に変更増幅されたのち、
予め設定された選別基準値を記憶した比較器によって比
較されたのち選別基準値以外の物品を検出した場合には
エアーガンその他の排除機構によって強制的に排除させ
るように作用するものである。The sorting mechanism of the present invention projects a predetermined light from a light source onto the objects to be sorted flowing down from the chute to the observation section, and supplies reflected light projected from the light source onto the objects to be sorted to a filter through a lens. Either a part of the filter detects only wavelengths in the infrared region, which is a specific wavelength range, or the projected light from the light source that is projected onto the object to be sorted is passed through a filter that detects only wavelengths in the infrared region in advance to detect only infrared wavelengths. to project. The infrared wavelength that has passed through the filter (or the reflected light if only the infrared wavelength is projected onto the object by passing it through a filter in advance) is detected by a sensor, converted into an electrical signal, and amplified.
If an article other than the sorting reference value is detected after being compared by a comparator storing a preset sorting reference value, it is forcibly removed by an air gun or other removal mechanism.
以下、本発明の実施例を図面を参照して説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の基本的な実施例を示すものである。図
において、符合１は、被選別物２・・２を観察部３に供
給するためのシュートであり、その上端部には被選別物
２・・２を供給するためのホッパー（図示しない）を連
結している。符合３で示す観察部は、シュートｌの真下
或いは実施例のようにシュート１が傾斜して設けられて
いる場合にはその傾斜したシュート１の延長線上に位置
するようにして設けるものであり光学的且つ電気的な観
察を行うのに充分な距離を保つようにしている。この観
察部３には、被選別物が連続的に流下する位置より少し
だけ離れた位置に反射光を得るための光源４、反射光を
光束として捉える光学レンズ５、前記反射光のうち特定
の波長域である赤外域の波長のみを透過させるフィルタ
ー６、フィルター６を透過した赤外線を検出する光セン
サ−７が順次設けられている。前記した、光センサ−７
として用いるものは、赤外線を検知できる機能を有する
ものであれば特にその種類を特定する必要はないが、一
般的にはフォトダイオード、光電導セル等赤外域に有効
に作用する感度を有するものが用いられる。光センサ−
７によって検出された赤外線の信号は増幅器８によって
増幅され、比較器９によって予め設定された選別基準値
と比較され、基準外の信号を発生した被選別物を検知し
た場合にはエアーガン等の排除機構１０を作動させて選
別機能を発揮する。なお、本実施例においては被選別物
２・・２を観察部３に供給するための機構をシュート１
を利用して落下させながら供−給する構造として例示し
たがこれに限定°されるものではなく例えばベルトコン
ベアーのような移送機構を利用して行うこともできるこ
とは勿論である。また、本実施例では選別機構を一つの
観察部３に対して一組だけ設けた例を示したがこれに限
定されるものでもなく例えば一つのシュート１から流下
寡内される被選別物２・・２の周囲に複数の選別機構（
この場合便宜上、光源４、光学レンズ５、フィルター６
、光センサ−７及びこの光センサ−７に連動して作動す
る増幅器８、比較器９及び排除機構１０を選別機構と呼
ぶ）を設ければその選別精度゛は一層高められるであろ
う、特に、一つの被選別品に対して複数の方向から選別
機構を配置することは被選別物の形状が不定型の物品で
ある場合或いは被選別品の形状に凹凸面がある場合等に
は一層有効である。第２図は、本発明のもう一つの実施
例を示すものであり、光源４から投射される光は予め赤
外域の波長のみを透過させるフィルター６を透過させら
れるようにしておりこのフィルター６を透過した光線（
赤外線）のみが被選別物２・・２に投射される、被選別
物からの反射赤外線は光学レンズ５、光センサ−７を順
次通ったのち増幅器８、比較器９により選別されること
は第１図に例示した実施例の場合と同様である。FIG. 1 shows a basic embodiment of the invention. In the figure, reference numeral 1 denotes a chute for supplying the objects 2...2 to the observation section 3, and a hopper (not shown) for feeding the objects 2...2 to the upper end of the chute. It is connected. The observation section indicated by reference numeral 3 is provided so as to be located directly below the chute 1 or, if the chute 1 is provided in an inclined manner as in the embodiment, on the extension line of the inclined chute 1. The distance is sufficient to allow for targeted and electrical observations. This observation section 3 includes a light source 4 for obtaining reflected light at a position slightly distant from the position where the objects to be sorted continuously flow down, an optical lens 5 for capturing the reflected light as a luminous flux, and a A filter 6 that transmits only wavelengths in the infrared wavelength range, and a photosensor 7 that detects the infrared rays that have passed through the filter 6 are sequentially provided. The optical sensor 7 mentioned above
There is no need to specify the type of device used as a device as long as it has the ability to detect infrared rays, but in general, it is a photodiode, photoconductive cell, etc. that has a sensitivity that works effectively in the infrared region. used. light sensor
The infrared signal detected by 7 is amplified by an amplifier 8, and compared with a preset selection standard value by a comparator 9. If an object to be sorted that generates a signal outside the standard is detected, an air gun, etc. is rejected. The mechanism 10 is activated to perform the sorting function. In this embodiment, the chute 1 is the mechanism for supplying the objects to be sorted 2...2 to the observation section 3.
Although the structure is exemplified in which the material is supplied while falling using a conveyor belt, the present invention is not limited to this, and it is of course possible to use a transport mechanism such as a belt conveyor. Furthermore, although this embodiment shows an example in which only one set of sorting mechanisms is provided for one observation unit 3, the present invention is not limited to this. ...Multiple sorting mechanisms (
In this case, for convenience, a light source 4, an optical lens 5, a filter 6
, an optical sensor 7, an amplifier 8, a comparator 9, and an exclusion mechanism 10 that operate in conjunction with the optical sensor 7 are called a sorting mechanism), the sorting accuracy will be further improved. Arranging sorting mechanisms from multiple directions for one item to be sorted is more effective when the item to be sorted has an irregular shape or has an uneven surface. It is. FIG. 2 shows another embodiment of the present invention, in which the light projected from the light source 4 is made in advance to pass through a filter 6 that transmits only wavelengths in the infrared region. The transmitted rays (
Only the infrared rays (infrared rays) are projected onto the objects to be sorted 2...2.The reflected infrared rays from the objects to be sorted pass sequentially through an optical lens 5 and an optical sensor 7, and then are sorted by an amplifier 8 and a comparator 9. This is the same as the case of the embodiment illustrated in FIG.
本発明は上記したように被選別物に投射した光の反射光
から得られる赤外線を選別基準として利用したので従来
の重量／比重の差を利用した機械的な選別装置や或いは
反射光によって得られる色彩の差を利用して選別する色
差選別のように選別基準値の境界に近いものの場合でも
比較的正確に選別を行うことができる従来の各種選別機
構が果たし得なかった選別精度の向上を飛躍的に高める
ことができるようになった。また、本発明によれば選別
対象品が粒状物ばかりでなく、例えば表面に異物が混入
している場合の！！類、菓子類等に対してもその選別を
有効に行うことが可能でありその適用範囲を著しく広範
囲のものとすることができる特徴がある。As described above, the present invention utilizes infrared rays obtained from the reflected light of the light projected onto the objects to be sorted as a sorting standard. As with color-difference sorting, which uses color differences to sort, even in the case of items that are close to the boundaries of the sorting standard values, it can be relatively accurately sorted, making a leap forward in improving sorting accuracy that was not possible with conventional sorting mechanisms. It is now possible to increase the Furthermore, according to the present invention, the items to be sorted are not limited to only particulate matter, but also when the surface of the product is contaminated with foreign matter! ! It is possible to effectively sort food products, confectionery, etc., and the range of application thereof can be extremely wide.
図は本発明の実施例を示すものであり、第１図は基本例
を示す概略図、第２図はフィルターの配役位置を変更し
て示す概略図である。
１・・シュート、２・・被選別物、３・・観察部、４・
・光源、５・・光学レンズ、６・・フィルター、７・・
光センサ−，８・・増幅器、９・・比較器、１０・・排
除器、
特許出願人 株式会社 安西製作所（ほか２名
）
第１図
へ７１
第２図The drawings show embodiments of the present invention; FIG. 1 is a schematic diagram showing a basic example, and FIG. 2 is a schematic diagram showing a modified filter placement position. 1. Chute, 2. Object to be sorted, 3. Observation section, 4.
・Light source, 5. Optical lens, 6. Filter, 7.
Optical sensor, 8... amplifier, 9... comparator, 10... excluder, patent applicant Anzai Seisakusho Co., Ltd. (and 2 others) Go to Figure 1 71 Figure 2
Claims (5)
射する光源と、これらの反射光のうち赤外域の波長光線
（赤外線）のみを透過するフィルターと、このフィルタ
ーを透過した赤外線を検出するセンサーと前記センサー
によって検出された赤外域の波長を予め設定された選別
基準値に従って選別しながら作動するエアーガンその他
のエジェクターとからなる混入された異物を判定選別し
て除去する機構。(1) A light source that projects onto the objects to be sorted that are supplied to the observation section for sorting, a filter that transmits only the infrared wavelength rays (infrared rays) of these reflected lights, and a filter that transmits the infrared rays that have passed through this filter. A mechanism for determining, sorting, and removing mixed foreign matter, which is comprised of a sensor and an air gun or other ejector that operates while sorting infrared wavelengths detected by the sensor according to a preset sorting reference value.
ルターを光源と被選別物の間に介在させた特許請求の範
囲第１項記載の、混入された異物を判定選別した除去を
する機構。(2) A mechanism for determining, sorting, and removing mixed foreign matter according to claim 1, in which a filter that transmits only wavelength rays in the infrared region (infrared rays) is interposed between the light source and the object to be sorted. .
ある特許請求の範囲第１項若しくは第２項のいずれかに
記載の、混入された異物を判定選別して除去をする機構
。(3) A mechanism for determining and sorting out mixed foreign substances and removing them, as set forth in claim 1 or 2, wherein the mechanism for supplying objects to be sorted to the observation section is a chute.
る特許請求の範囲第１項若しくは第２項のいずれかに記
載の、混入された異物を判定選別して除去をする機構。(4) A mechanism for determining and sorting out mixed foreign matter and removing it, as set forth in claim 1 or 2, wherein the feeding mechanism to the observation section is a belt conveyor.
別のための機構を設けてなる、特許請求の範囲第１項若
しくは第２項のいずれかに記載の、混入された異物を判
定選別して除去する機構。(5) A mixed foreign substance according to claim 1 or 2, wherein a plurality of mechanisms for determination and sorting are provided for the observation part of one object to be sorted. A mechanism that determines, selects, and removes.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60055237A JPS61216787A (en) | 1985-03-19 | 1985-03-19 | Mechanism deciding, selecting and removing mixed foreign matter |
| DE19853521509 DE3521509A1 (en) | 1985-03-19 | 1985-06-14 | READING DEVICE FOR REMOVING FOREIGN BODIES FROM SMALL-PIECE PROPERTY |
| AU43736/85A AU569796B2 (en) | 1985-03-19 | 1985-06-17 | Apparatus for detecting and removing foreign substances from materials |
| GB08516368A GB2172699A (en) | 1985-03-19 | 1985-06-28 | Apparatus and method for separating mixed products |
| FR8512717A FR2579115A1 (en) | 1985-03-19 | 1985-08-26 | APPARATUS FOR ASSESSING, SELECTING AND REJECTING A FOREIGN SUBSTANCE INCLUDED IN A MIXTURE |
| IT19044/86A IT1188240B (en) | 1985-03-19 | 1986-01-09 | DEVICE FOR THE IDENTIFICATION, SELECTION AND REMOVAL OF MIXED FOREIGN SUBSTANCES |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60055237A JPS61216787A (en) | 1985-03-19 | 1985-03-19 | Mechanism deciding, selecting and removing mixed foreign matter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61216787A true JPS61216787A (en) | 1986-09-26 |
Family
ID=12992996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60055237A Pending JPS61216787A (en) | 1985-03-19 | 1985-03-19 | Mechanism deciding, selecting and removing mixed foreign matter |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS61216787A (en) |
| AU (1) | AU569796B2 (en) |
| DE (1) | DE3521509A1 (en) |
| FR (1) | FR2579115A1 (en) |
| GB (1) | GB2172699A (en) |
| IT (1) | IT1188240B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011506066A (en) * | 2007-12-14 | 2011-03-03 | ベスト ２ エヌヴェ | Sensor element for sorting apparatus and method for sorting products |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8805103D0 (en) * | 1988-03-03 | 1988-03-30 | Molins Plc | Cigarette manufacture |
| US4915827A (en) * | 1988-05-19 | 1990-04-10 | Trebor Industries, Inc. | Method and apparatus for optical sorting of materials using near infrared absorbtion criteria |
| IL90441A (en) * | 1988-06-09 | 1992-11-15 | Richert Gerald Ray | Product discrimination system and method |
| GB9012417D0 (en) * | 1990-06-04 | 1990-07-25 | Sortex Ltd | Method and apparatus for sorting material |
| US5150307A (en) * | 1990-10-15 | 1992-09-22 | Automation Industrial Control, Inc. | Computer-controlled system and method for sorting plastic items |
| DE4235956C2 (en) * | 1992-10-23 | 1995-09-28 | Rwe Entsorgung Ag | Use of electromagnetic waves in the UV and visible range to identify the materials by detecting the material structure |
| DE69307344T2 (en) * | 1992-11-07 | 1997-04-24 | Ford Werke Ag | SEPARATION OF PLASTICS |
| DE19708457C1 (en) * | 1997-02-17 | 1998-03-26 | Elexso Sortiertech Gmbh | Feeder for sorting machine for dry granular products |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4834703A (en) * | 1971-08-23 | 1973-05-22 | ||
| JPS5778980A (en) * | 1980-11-05 | 1982-05-17 | Hamamatsu Tv Co Ltd | Selector for tea leaf |
| JPS57107272A (en) * | 1980-12-25 | 1982-07-03 | Saika Gijutsu Kenkyusho | Selector for granular body |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB929104A (en) * | 1961-04-20 | 1963-06-19 | R W Gunson Seeds Ltd | Improvements relating to the sorting of translucent objects |
| GB993063A (en) * | 1962-04-30 | 1965-05-26 | Gunsons Sortex Ltd | Photoelectric sorting machine |
| GB986177A (en) * | 1962-05-25 | 1965-03-17 | K & H Equipment Ltd | Random stream materials sorter |
| US3738484A (en) * | 1971-03-15 | 1973-06-12 | Mandrel Industries | Sorting machine |
| GB1415197A (en) * | 1972-09-08 | 1975-11-26 | Weimar Kombinat Veb | Process and apparatus for sorting agricultural produce |
| US3854586A (en) * | 1973-05-15 | 1974-12-17 | Amf Inc | Automatic grader for sorting objects according to brightness and color tones |
| GB1449519A (en) * | 1973-12-13 | 1976-09-15 | Gunssons Sortex Ltd | Light-sensitive sorting machine |
| DE2722294A1 (en) * | 1976-05-19 | 1977-12-01 | Ultra Sort Corp | DEVICE FOR SORTING ITEMS |
| US4095696A (en) * | 1977-02-04 | 1978-06-20 | Amf Incorporated | Produce grader |
| BE857904A (en) * | 1977-08-18 | 1977-12-16 | Elbicon Electronics Pvba | DEVICE BASED ON THE REFLEKTION OF POLARIZED INFRARED LIGHT FOR DETECTION AND REMOVAL OF FOREIGN OBJECTS BETWEEN LOOSE VEGETABLES DISTRIBUTED ON A CONVEYOR BELT IN MOTION |
| GB2009393A (en) * | 1977-09-16 | 1979-06-13 | Pickett A J F | Photoelectric investigation of crops |
| GB1579741A (en) * | 1978-01-09 | 1980-11-26 | Secretary Industry Brit | Sorting of items into different classes |
| FR2430272A1 (en) * | 1978-07-06 | 1980-02-01 | Blitz Electricite | Removal of stones etc. from conveyed food prod. esp. beans - by diversion traps operated by detection of different reflectance |
| US4236640A (en) * | 1978-12-21 | 1980-12-02 | The Superior Oil Company | Separation of nahcolite from oil shale by infrared sorting |
| AU535962B2 (en) * | 1979-07-24 | 1984-04-12 | Csr Limited | Infraed sorting |
| GB2060166B (en) * | 1979-10-09 | 1984-03-21 | Ag Electron Inc | Sorting device and method |
| GB2121535B (en) * | 1982-06-02 | 1986-04-30 | Anglo Amer Corp South Africa | Detector for use in sorting system |
-
1985
- 1985-03-19 JP JP60055237A patent/JPS61216787A/en active Pending
- 1985-06-14 DE DE19853521509 patent/DE3521509A1/en active Granted
- 1985-06-17 AU AU43736/85A patent/AU569796B2/en not_active Expired
- 1985-06-28 GB GB08516368A patent/GB2172699A/en not_active Withdrawn
- 1985-08-26 FR FR8512717A patent/FR2579115A1/en active Pending
-
1986
- 1986-01-09 IT IT19044/86A patent/IT1188240B/en active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4834703A (en) * | 1971-08-23 | 1973-05-22 | ||
| JPS5778980A (en) * | 1980-11-05 | 1982-05-17 | Hamamatsu Tv Co Ltd | Selector for tea leaf |
| JPS57107272A (en) * | 1980-12-25 | 1982-07-03 | Saika Gijutsu Kenkyusho | Selector for granular body |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011506066A (en) * | 2007-12-14 | 2011-03-03 | ベスト ２ エヌヴェ | Sensor element for sorting apparatus and method for sorting products |
Also Published As
| Publication number | Publication date |
|---|---|
| AU569796B2 (en) | 1988-02-18 |
| DE3521509C2 (en) | 1988-05-05 |
| GB2172699A (en) | 1986-09-24 |
| DE3521509A1 (en) | 1986-10-02 |
| IT8619044A0 (en) | 1986-01-09 |
| GB8516368D0 (en) | 1985-07-31 |
| IT1188240B (en) | 1988-01-07 |
| FR2579115A1 (en) | 1986-09-26 |
| AU4373685A (en) | 1986-09-25 |
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