EP2119511A1 - Vorrichtung und System zur Klassifizierung von Produkten - Google Patents

Vorrichtung und System zur Klassifizierung von Produkten Download PDF

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Publication number
EP2119511A1
EP2119511A1 EP09160055A EP09160055A EP2119511A1 EP 2119511 A1 EP2119511 A1 EP 2119511A1 EP 09160055 A EP09160055 A EP 09160055A EP 09160055 A EP09160055 A EP 09160055A EP 2119511 A1 EP2119511 A1 EP 2119511A1
Authority
EP
European Patent Office
Prior art keywords
conveyor
products
carrier belts
product
image
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Withdrawn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
EP09160055A
Other languages
English (en)
French (fr)
Inventor
Leonardus Paulus Crezee
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.)
FPS Food Processing Systems BV
Original Assignee
FPS Food Processing Systems BV
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 FPS Food Processing Systems BV filed Critical FPS Food Processing Systems BV
Priority to EP09160055A priority Critical patent/EP2119511A1/de
Publication of EP2119511A1 publication Critical patent/EP2119511A1/de
Withdrawn legal-status Critical Current

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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

Definitions

  • the present invention relates to a system for classifying products, for instance fruits or vegetables, more particularly cucumbers, with electromagnetic radiation, for instance visible light in combination with adjacent wavelength regions, during conveyance in substantially horizontal conveying direction T.
  • a further, second belt conveyor is shown, at a small angle to, and substantially in the direction T in line with the earlier-mentioned belt conveyor, having first and second carrier belts, respectively, for these two successive conveyors, while the second carrier belts are in line with the first and, in turns, in the intermediate spaces of the first.
  • first and second carrier belts are separately driven to effect differences in velocities to thus subject products to an additional operation of mutual positioning, more particularly for slowing the products down.
  • the system with cameras is arranged before transfer to the second conveyor, to take pictures only at the location of the first conveyor where the products are sufficiently far apart.
  • the products will have to be supported with more belts or with a tighter net so as not to fall between the mazes of the conveyor. Also, movements can occur that are so unexpected that the products fall from a side of the conveyor. Further, with such a support, the larger extent of covering is a drawback so that, when taking pictures, parts of the surface can be missed. A further drawback, in particular for very delicate fruits such as pears is that they may become damaged.
  • the invention provides a system according to claim 1.
  • the present system can be characterized:
  • Fig. 1 products P1, P2, for instance cucumbers in side view, are conveyed in conveying direction by two endless conveyors 10 and 20, respectively.
  • images are made of the passing products P.
  • C0 and C1 images are made, both from above and from below, with C2 only from below.
  • processing unit or computer 500 these images will be composed to form complete images of all these products P.
  • the cameras C0, C1 and C2 are indicated in a highly schematic manner. More particularly, several cameras can be used, for instance cameras for special wavelength regions or also auxiliary means such as mirrors can be used to obviate, upon lighting, possible formation of shadows, and therefore incomplete views. It will further be clear to the skilled person that for the elements of such a system, which are also understand to include lighting elements such as light sources, well-determined distances and angles can be set. With suitable programs, the computer 500 will be able to compose the recorded pictures or images to form the above-mentioned complete images. More particularly, the images involve parts of the surface of each product. Thus, with all pictures or images that are made, a representation of the entire surface of each product can be composed with the system mentioned.
  • wavelengths for instance by means of lighting, or also by means of choice of filters
  • representations of the entire surface in preselected wavelength regions can be composed.
  • Such settings enable recording of properties, features and characteristics of such a product with this selected setting.
  • these properties, features and characteristics can be suitably used, for instance when sorting to particular characteristics.
  • parts p10-p14 of a product are observed at that position, numbered P1
  • parts p20 - p25 of the same product are observed at its position on the second conveyor, numbered P2.
  • the parts p10 - p14 and p20 - p25 can be combined in the computer as described hereinabove.
  • representations can be composed, for instance in the visual field or in a specific wavelength region, such as for instance infrared, near infrared, ultraviolet or a still further part of the electromagnetic spectrum.
  • FIG. 2 the transfer 300 between the two successive conveyors 10, 20 is shown in greater detail from below.
  • a product P1 for instance a cucumber, is located on the first conveyor 10, and a second similar product P2 on the second conveyor 20. As indicated, the products are conveyed in the direction T.
  • Both conveyors 10, 20 have conveying surfaces which are composed of strips or belts, 100, 200, respectively. In this view, the last part of a belt cannot be seen, but instead thereof views of parts of the respective end wheels 11, 21.
  • a transfer portion 300 is shown where the belts 100, 200 run virtually side by side, and in this exemplary embodiment run between one another, so that the products P end up very gradually from the first onto the second conveyor 10, 20, respectively, and the initial position and orientation the product P had on the first conveyor 10 remains intact.
  • the belts 100 of the conveyor 10 can be located between two outer belts 200 of the conveyor 20 as is indicated in Fig. 1 .
  • the belts 100, 200 can be the only four belts, at sufficient intervals, and thus be sufficient and suitable for elongated products such as cucumbers.
  • the belts can have all sorts of forms, from flat strips or tapes to cords with a very course surface.
  • suitable plastic materials can be chosen, for instance easily cleanable materials, or materials with special properties with regard to strength, for instance difficultly deformable materials, with which almost flat conveying surfaces are obtained also when conveying products.
  • a further exemplary embodiment of the present invention is shown, where a system of belts is used so that a channel-shaped first endless conveyor 10 with belts 110, 120 and a second endless conveyor 20 with belts 210, 220 are obtained, while a suitable channel angle 400 is selected and utilized, depending on, for instance, the type of products P and the positioning thereof, in the case of apples or pears for instance, where it is of importance that the angle is sufficiently acute to support the product in the channel to prevent rolling or sliding, or with pears to always position these in their longitudinal direction.
  • rollers 40, 41, 50, 51 are indicated over which rollers run the belts 110 and 120, and, for the second conveyor 20, the rollers 50, 51, 60, 61. It is clear that the rollers 50, 51 are joint rollers and also form a transfer area.
  • the rotational directions R110, R120, R210, R220 result in the conveying direction T.
  • a further similar exemplary embodiment is represented where the products P are separated by product separating elements 70.
  • product separating elements 70 are provided at fixed intervals and thus define conveying positions with well-defined pitch distances. It will be clear to all skilled in the art that these elements 70 can be connected to the belts or strips 110, 120, 210, 220 in various manners, or even be detachable and movable so that the pitch distances are settable.
  • a system according to this invention is very suitable not only for composing the above-mentioned complete images and representations in a simple and secure manner.
  • a further particularly great advantage has appeared to be transferring, with a head or hand of a robot, products which, during conveyance, have kept their orientation and position, more particularly their relative position.
  • a cucumber can be directed such as for instance described in another application of applicant, EP 07017714.2 .
  • the situation shown there is that of, for instance, the second conveyor where the cucumbers have kept their orientation and position according to the present invention.
  • the accumulation of products obtained at the end of such a conveyor can then be taken up as a whole by a suitable robot head and be placed into a packing unit.

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  • Sorting Of Articles (AREA)
EP09160055A 2008-05-13 2009-05-12 Vorrichtung und System zur Klassifizierung von Produkten Withdrawn EP2119511A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09160055A EP2119511A1 (de) 2008-05-13 2009-05-12 Vorrichtung und System zur Klassifizierung von Produkten

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08008818 2008-05-13
EP09160055A EP2119511A1 (de) 2008-05-13 2009-05-12 Vorrichtung und System zur Klassifizierung von Produkten

Publications (1)

Publication Number Publication Date
EP2119511A1 true EP2119511A1 (de) 2009-11-18

Family

ID=40934920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09160055A Withdrawn EP2119511A1 (de) 2008-05-13 2009-05-12 Vorrichtung und System zur Klassifizierung von Produkten

Country Status (1)

Country Link
EP (1) EP2119511A1 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5751833A (en) 1992-04-16 1998-05-12 Elop Electro-Optics Industries, Ltd. Apparatus and method for inspecting articles such as agricultural produce
WO2001009013A1 (en) * 1999-07-30 2001-02-08 Lintec Corporation Workpiece inspection apparatus and inspection method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5751833A (en) 1992-04-16 1998-05-12 Elop Electro-Optics Industries, Ltd. Apparatus and method for inspecting articles such as agricultural produce
WO2001009013A1 (en) * 1999-07-30 2001-02-08 Lintec Corporation Workpiece inspection apparatus and inspection method

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