EP0602176B1 - Sortieroptik für eine farbsortiermaschine und verfahren - Google Patents

Sortieroptik für eine farbsortiermaschine und verfahren Download PDF

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Publication number
EP0602176B1
EP0602176B1 EP92919858A EP92919858A EP0602176B1 EP 0602176 B1 EP0602176 B1 EP 0602176B1 EP 92919858 A EP92919858 A EP 92919858A EP 92919858 A EP92919858 A EP 92919858A EP 0602176 B1 EP0602176 B1 EP 0602176B1
Authority
EP
European Patent Office
Prior art keywords
light
receiver
product
signal
emitter
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.)
Expired - Lifetime
Application number
EP92919858A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0602176A1 (de
Inventor
Rainer Schumann
Thomas Moritz
Harald C. Justus
Jos Peter Mallant
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ELEXSO SORTIERTECHNIK AG
Original Assignee
Elexso Sortiertechnik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Elexso Sortiertechnik GmbH filed Critical Elexso Sortiertechnik GmbH
Publication of EP0602176A1 publication Critical patent/EP0602176A1/de
Application granted granted Critical
Publication of EP0602176B1 publication Critical patent/EP0602176B1/de
Anticipated expiration legal-status Critical
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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S209/00—Classifying, separating, and assorting solids
    • Y10S209/938—Illuminating means facilitating visual inspection

Definitions

  • the invention relates to a sorting optics according to the preamble of patent claim 1 and a method according to the preamble of patent claim 6.
  • a color sorting machine is already known from DE-PS 36 14 400, in which the product to be sorted is transported through a central channel.
  • the channel in the area of an observation head is transparent.
  • the observation head has several light transmitters distributed around the channel in the form of lamps which shine through the transparent channel.
  • a photocell arrangement is arranged next to each lamp as a product signal receiver.
  • a background plate lies diametrically opposite the photocell arrangement on the other side of the channel, which is selected according to the color of the product to be sorted.
  • one transmitter always illuminates the front of the product and a second transmitter illuminates the background plate.
  • the product signal and the background signal are recorded by the photocell arrangement and compared with one another. If the product signal corresponds to the background signal, the product has met the requirements. However, if the signals differ from one another, an ejector is actuated, which ejects the corresponding product from the product stream.
  • a disadvantage of the known device and the method used is that the background plate always has to be physically adapted to the product color, so that a large number of background plates with different colors must be kept in stock for each product. Replacing the background plates not only requires time, but also experience in choosing the right color.
  • Distinctions are only made when bad product crosses the beam path. It is therefore not possible to count good products if this should be desired for further process control. Furthermore, a good product cannot be sorted out, which can be desirable, for example, if, after one or more sorting runs in which good and bad product have been separated, an inverse sorting is to be carried out, in which only sorted product is sent through the sorting machine again to sort out the good residual product that is inevitably still contained in it.
  • DE 32 03 773 A1 discloses the use of a matt screen as a diffuser in conjunction with a color recognition lens, specifically for recognizing the surface of a disk wheel. However, this has nothing to do with product sorting.
  • the amount of light emitted by the transmitter is either completely scattered back from the front of a product to one or more product signal receivers and evaluated by them, or only part of the light is scattered back from the product, while the rest of the product passes the low light receiver falls. In no case however, light is reflected from the back of the product onto the low light receiver. If you now combine the signals from the product signal receiver and the residual light receiver, you get information about the width of the product and can normalize the backscattered signal in this way, ie make it as large as if the product had covered the entire light beam. As a result, a damaged area or stain is shown enlarged, so that a better distinction between faultless and faulty product is possible.
  • the invention is explained in more detail below with reference to a drawing:
  • the drawing shows a section through the channel 1 of the color sorting machine, specifically perpendicular to the direction of transport of objects or products which fall or are conveyed through the channel 1.
  • At least one transmitter 2 is arranged on the channel 1 and emits visible, infrared or ultraviolet light through the channel 1.
  • a residual light receiver 4 on the other side of the channel 1, to which a diffuser 14 is connected upstream.
  • a product signal receiver 6 or 8 is arranged on each side, the output signals of which are led via optical fibers 16 to a signal processing circuit, not shown.
  • the transmitter 2 is a light source for visible, infrared or ultraviolet light.
  • the transmitter 2 is a cold light source, for example a halogen lamp. Its light is limited by a slit optic 10, which is also known per se, to form a flat band which, in one embodiment, has a width of 20 to 50 mm and a height of 1 to 2 mm, for example.
  • the one on the opposite side of channel 1 and outside of it, arranged behind a translucent wall section, the diffuser 14 is at least as wide as the light band from the transmitter 2, so that the entire amount of light passing through the channel 1 falls from the transmitter 2 onto the diffuser 14 and can be guided by this to the residual light receiver 4.
  • the assembly shown in the drawing consisting of transmitter 2, residual light receiver 4 and product signal receivers 6 and 8, can be arranged around channel 1 in an identical manner, for example at an angle of 90 ° or 120 ° transferred. If space permits, more than three transmitters with associated residual light receivers and product signal receivers can also be provided.
  • the wavelength of the light emitted by the transmitter 2 is first adjusted selected to the color of the product and adjusted via a control unit, not shown.
  • the sensitivity of the product signal receivers 6 and 8 is set to the desired wavelength range, which corresponds to the wavelength of the radiation scattered back by the product.
  • the product can then be transported through channel 1 perpendicular to the drawing plane. If no product is present in the beam path 12, the entire light is sent from the transmitter 2 to the residual light receiver 4 and is collected by the latter.
  • the first electrical signal derived therefrom then has the maximum amplitude and maximum width. On the other hand, if there is product in the beam path 12, part of the light is scattered back from the product to the product signal receivers 6 and 8.
  • the residual light receiver 4 can always recognize whether product is present or not.
  • its signal can be evaluated in such a way that, depending on the size of the product passing through the light barrier, the product signal is always brought to a standard value which corresponds to a condition as if the product were always of the same size.
  • the sum of residual light + reflected light for a good product is always constant, regardless of how large the product appears when it passes through the measuring range. This allows deviations in the product color or stains to be defined much better than is the case with the prior art.

Landscapes

  • Sorting Of Articles (AREA)
  • Spectrometry And Color Measurement (AREA)
EP92919858A 1991-09-30 1992-09-28 Sortieroptik für eine farbsortiermaschine und verfahren Expired - Lifetime EP0602176B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4132472 1991-09-30
DE4132472A DE4132472C1 (ja) 1991-09-30 1991-09-30
PCT/EP1992/002219 WO1993006944A1 (de) 1991-09-30 1992-09-28 Sortieroptik für eine farbsortiermaschine und verfahren

Publications (2)

Publication Number Publication Date
EP0602176A1 EP0602176A1 (de) 1994-06-22
EP0602176B1 true EP0602176B1 (de) 1996-05-08

Family

ID=6441777

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92919858A Expired - Lifetime EP0602176B1 (de) 1991-09-30 1992-09-28 Sortieroptik für eine farbsortiermaschine und verfahren

Country Status (7)

Country Link
US (1) US5579921A (ja)
EP (1) EP0602176B1 (ja)
JP (1) JPH06106138A (ja)
BR (1) BR9206564A (ja)
DE (2) DE4132472C1 (ja)
ES (1) ES2089564T3 (ja)
WO (1) WO1993006944A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105032789A (zh) * 2015-08-17 2015-11-11 江苏瑞新科技股份有限公司 一种硅电池片的色差分拣装置及其分拣方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2710564B1 (fr) * 1993-10-01 1995-11-24 Iname Int Dispositif de reconnaissance et/ou de tri de fruits ou légumes, procédé et utilisation correspondants.
US6069696A (en) * 1995-06-08 2000-05-30 Psc Scanning, Inc. Object recognition system and method
US5679079A (en) * 1995-10-23 1997-10-21 Crosby; Kennith D. Solid state bowling pin counter and method therefor
DE19708457C1 (de) * 1997-02-17 1998-03-26 Elexso Sortiertech Gmbh Fördereinrichtung für eine Sortiermaschine
EP1949009B8 (en) * 2005-10-27 2020-06-03 LG Electronics Inc. Refrigerator
MX2008012726A (es) 2006-04-04 2009-01-16 6511660 Canada Inc Sistema y metodo para identificar y clasificar material.
US20110068051A1 (en) * 2009-05-22 2011-03-24 6358357 Canada Inc. Ballistic separator

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785735A (en) * 1972-01-19 1974-01-15 Bio Physics Systems Inc Photoanalysis method
GB1449519A (en) * 1973-12-13 1976-09-15 Gunssons Sortex Ltd Light-sensitive sorting machine
US4057146A (en) * 1974-05-24 1977-11-08 Xeltron, S.A. Optical sorting apparatus
US4350442A (en) * 1976-05-19 1982-09-21 Accusort Corporation Light and color detecting scanner for a sorting apparatus
US4235342A (en) * 1978-05-05 1980-11-25 Geosource Inc. Sorting apparatus using programmable classifier
US4348111A (en) * 1978-12-07 1982-09-07 The English Electric Company Limited Optical particle analyzers
JPS5717842A (en) * 1980-07-07 1982-01-29 Satake Eng Co Ltd Photoelectric sorting apparatus of color sorter
GB2091416B (en) * 1981-01-19 1984-10-17 Gunsons Sortex Ltd Sorting objects
US4454029A (en) * 1981-05-27 1984-06-12 Delta Technology Corporation Agricultural product sorting
DE3203773A1 (de) * 1982-02-04 1983-08-11 Volkswagenwerk Ag, 3180 Wolfsburg Einrichtung zur erkennung der farbgebung eines objekts
IT1205622B (it) * 1982-12-21 1989-03-23 Illycaffe Spa Procedimento per effettuare una selezione in un materiale granuliforme e macchina per attuare il procedimento
JPS59177186A (ja) * 1983-03-26 1984-10-06 株式会社　サタケ 色彩選別機の自動制御装置
GB2142426B (en) * 1983-06-30 1986-09-17 Gunsons Sortex Ltd Sorting machine and method
GB2151018B (en) * 1983-12-06 1987-07-22 Gunsons Sortex Ltd Sorting machine and method
GB8425273D0 (en) * 1984-10-05 1984-11-14 Spandrel Etab Signal responsive to parameter of objects
JPS61204072A (ja) * 1985-03-07 1986-09-10 株式会社　東洋精米機製作所 光学的選別機の光線透過窓清掃装置
US4697709A (en) * 1985-09-03 1987-10-06 Delta Technology Corporation Sorter for agricultural products
US5158181A (en) * 1985-10-29 1992-10-27 Bailey Roger F Optical sorter
EP0223446B1 (en) * 1985-10-29 1991-03-27 Roger Frederick Bailey Optical sorting apparatus
DE3614400C1 (de) * 1986-04-25 1987-08-06 Justus Technik Gmbh Verfahren und Vorrichtung zum Steuern einer Farbsortiermaschine
US4878582A (en) * 1988-03-22 1989-11-07 Delta Technology Corporation Multi-channel bichromatic product sorter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105032789A (zh) * 2015-08-17 2015-11-11 江苏瑞新科技股份有限公司 一种硅电池片的色差分拣装置及其分拣方法
CN105032789B (zh) * 2015-08-17 2018-06-26 江苏瑞新科技股份有限公司 一种硅电池片的色差分拣装置及其分拣方法

Also Published As

Publication number Publication date
JPH06106138A (ja) 1994-04-19
BR9206564A (pt) 1995-03-01
US5579921A (en) 1996-12-03
ES2089564T3 (es) 1996-10-01
WO1993006944A1 (de) 1993-04-15
EP0602176A1 (de) 1994-06-22
DE4132472C1 (ja) 1993-03-11
DE59206253D1 (de) 1996-06-13

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