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FR2430272A1 - Removal of stones etc. from conveyed food prod. esp. beans - by diversion traps operated by detection of different reflectance - Google Patents

Removal of stones etc. from conveyed food prod. esp. beans - by diversion traps operated by detection of different reflectance

Info

Publication number
FR2430272A1
FR2430272A1 FR7820167A FR7820167A FR2430272A1 FR 2430272 A1 FR2430272 A1 FR 2430272A1 FR 7820167 A FR7820167 A FR 7820167A FR 7820167 A FR7820167 A FR 7820167A FR 2430272 A1 FR2430272 A1 FR 2430272A1
Authority
FR
France
Prior art keywords
prod
detection
trap
diversion
layer
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.)
Withdrawn
Application number
FR7820167A
Other languages
French (fr)
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.)
BLITZ ELECTRICITE
Original Assignee
BLITZ ELECTRICITE
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 BLITZ ELECTRICITE filed Critical BLITZ ELECTRICITE
Priority to FR7820167A priority Critical patent/FR2430272A1/en
Publication of FR2430272A1 publication Critical patent/FR2430272A1/en
Withdrawn legal-status Critical Current

Links

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

Landscapes

  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)

Abstract

Process for removing foregin bodies from a continuously conveyed prod. of a divided nature is claimed. The contaminants are detected by their reflectants to luminous radiation being different from that of the prod. The mixt. of prod and contaminants is spread in a single thickness layer on an advancing, flat conveyor belt. The layer is carried under a source which emits a luminous beam directed on to the layer. Reflected radiation is picked up by a receiver which detects a change as a contaminant meets the beam. Detection produces an electric signal from the receiver to actuate a diversion trap downstream of the beam. The trap is timed to divert a zone of mixt. contg. the detected contaminant. The delay period between detection and trap operation is pref related to the linear speed of the conveyor belt and the distance between the point of detection and the trap. The luminous radiation is pref is the infrared range. Used esp for treating food prod. e.g. mechanically harvested runner beans, which needs to be cleared of stones, insects, animals, etc. Process is more reliable than operators who become visually fatigue and often do not like to handle certain foreign objects.
FR7820167A 1978-07-06 1978-07-06 Removal of stones etc. from conveyed food prod. esp. beans - by diversion traps operated by detection of different reflectance Withdrawn FR2430272A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7820167A FR2430272A1 (en) 1978-07-06 1978-07-06 Removal of stones etc. from conveyed food prod. esp. beans - by diversion traps operated by detection of different reflectance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7820167A FR2430272A1 (en) 1978-07-06 1978-07-06 Removal of stones etc. from conveyed food prod. esp. beans - by diversion traps operated by detection of different reflectance

Publications (1)

Publication Number Publication Date
FR2430272A1 true FR2430272A1 (en) 1980-02-01

Family

ID=9210407

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7820167A Withdrawn FR2430272A1 (en) 1978-07-06 1978-07-06 Removal of stones etc. from conveyed food prod. esp. beans - by diversion traps operated by detection of different reflectance

Country Status (1)

Country Link
FR (1) FR2430272A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058028A3 (en) * 1981-01-29 1982-09-08 Lockwood Graders (U.K.) Limited Method and apparatus for detecting bounded regions of images, and method and apparatus for sorting articles and detecting flaws
FR2579115A1 (en) * 1985-03-19 1986-09-26 Anzai Mfg Co Ltd APPARATUS FOR ASSESSING, SELECTING AND REJECTING A FOREIGN SUBSTANCE INCLUDED IN A MIXTURE
US4915827A (en) * 1988-05-19 1990-04-10 Trebor Industries, Inc. Method and apparatus for optical sorting of materials using near infrared absorbtion criteria
EP0377478A1 (en) * 1989-01-06 1990-07-11 Heuft Systemtechnik Gmbh Apparatus for inspecting bulk goods
US5464981A (en) * 1993-05-17 1995-11-07 Simco/Ramic Corporation Methods of separating selected items from a mixture including raisins and the selected items
US5808305A (en) * 1996-10-23 1998-09-15 Src Vision, Inc. Method and apparatus for sorting fruit in the production of prunes
US5862919A (en) * 1996-10-10 1999-01-26 Src Vision, Inc. High throughput sorting system
US5884775A (en) * 1996-06-14 1999-03-23 Src Vision, Inc. System and method of inspecting peel-bearing potato pieces for defects
CN112387623A (en) * 2020-11-26 2021-02-23 沈阳海关技术中心 Infrared food safety inspection equipment

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0058028A3 (en) * 1981-01-29 1982-09-08 Lockwood Graders (U.K.) Limited Method and apparatus for detecting bounded regions of images, and method and apparatus for sorting articles and detecting flaws
US4493420A (en) * 1981-01-29 1985-01-15 Lockwood Graders (U.K.) Limited Method and apparatus for detecting bounded regions of images, and method and apparatus for sorting articles and detecting flaws
FR2579115A1 (en) * 1985-03-19 1986-09-26 Anzai Mfg Co Ltd APPARATUS FOR ASSESSING, SELECTING AND REJECTING A FOREIGN SUBSTANCE INCLUDED IN A MIXTURE
US4915827A (en) * 1988-05-19 1990-04-10 Trebor Industries, Inc. Method and apparatus for optical sorting of materials using near infrared absorbtion criteria
EP0377478A1 (en) * 1989-01-06 1990-07-11 Heuft Systemtechnik Gmbh Apparatus for inspecting bulk goods
US5464981A (en) * 1993-05-17 1995-11-07 Simco/Ramic Corporation Methods of separating selected items from a mixture including raisins and the selected items
US5884775A (en) * 1996-06-14 1999-03-23 Src Vision, Inc. System and method of inspecting peel-bearing potato pieces for defects
US6252189B1 (en) 1996-06-14 2001-06-26 Key Technology, Inc. Detecting defective peel-bearing potatoes in a random mixture of defective and acceptable peel-bearing potatoes
US5862919A (en) * 1996-10-10 1999-01-26 Src Vision, Inc. High throughput sorting system
US5808305A (en) * 1996-10-23 1998-09-15 Src Vision, Inc. Method and apparatus for sorting fruit in the production of prunes
CN112387623A (en) * 2020-11-26 2021-02-23 沈阳海关技术中心 Infrared food safety inspection equipment

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Legal Events

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