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WO2008003323A1 - Procédé et machine de d;montage d'appareils équipés d'un afficheur - Google Patents

Procédé et machine de d;montage d'appareils équipés d'un afficheur Download PDF

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Publication number
WO2008003323A1
WO2008003323A1 PCT/DK2007/000344 DK2007000344W WO2008003323A1 WO 2008003323 A1 WO2008003323 A1 WO 2008003323A1 DK 2007000344 W DK2007000344 W DK 2007000344W WO 2008003323 A1 WO2008003323 A1 WO 2008003323A1
Authority
WO
WIPO (PCT)
Prior art keywords
display
machine
cabinet
dismantling
apparatuses
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.)
Ceased
Application number
PCT/DK2007/000344
Other languages
English (en)
Inventor
Klaus Jørgen Dahlsgaard JEPSEN
Jan Hohberg
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.)
Hj Hansen Elektromiljo AS
Original Assignee
Hj Hansen Elektromiljo AS
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 Hj Hansen Elektromiljo AS filed Critical Hj Hansen Elektromiljo AS
Publication of WO2008003323A1 publication Critical patent/WO2008003323A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/52—Recovery of material from discharge tubes or lamps
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]

Definitions

  • the present invention concerns a method and a machine for dismantling apparatuses, e.g. a TV apparatus with a picture tube or other kind of display provided in a cabinet, where the apparatus is prepared manually or by machine for separating cabinet and display.
  • the collected electric and electronic waste is sent to a processing plant at which it is dismantled. This dismantling occurs mostly manually and only partly with mechanical aids.
  • the larger part of the waste consists of glass, pure plastics and metals which can be remelted and reused for new products. The recovery percentage for these materials is typically 90-100%.
  • a lesser part, e.g. loudspeaker cabinets of wood, is sent to combustion where it is utilised for producing power and heat.
  • the remains are hazardous waste, e.g. picture tubes with i.a. lead, printed circuit boards and plastic with brominated flame retardants.
  • Picture tubes from TV apparatuses consist of two glass types: cone glass and screen glass.
  • the main constituents of the glass is SiO 2 (60%).
  • the cone glass contains BaO and up to about 25% PbO as well as a lot of other substances in smaller amounts.
  • the light sensitive substances are removed and deposited.
  • the remaining glass may, depending on the composition, be reused for producing new picture tubes or for glass products of a lower degree of quality. It is very important to recycle picture tubes as the glass is only decomposing slowly by depositing, and barium, lead, strontium and cadmium are washed out. The latter will, however, be adsorbed to the surface of iron hydroxide minerals, delaying the washing out.
  • PCBs Printed circuit boards
  • plastics and ceramics constitute 65% of the equipped PCBs, while metals constitute 35%.
  • the largest amounts of metals are: copper (10%), iron (9%), aluminium (6%), lead (2%) and tin (2%).
  • Bromine and bromine compounds in flame retardants constitute 5%. Recycling of PCBs occurs today in refining cupper works. Firstly, the PCBs go through a mechanical destruction (shredding) and possibly magnetical separation, after which the raw materials may be recovered to varying degrees.
  • Various pyrometallurgical processes are used, including smelting, electrolysis, various precipitation processes, ion exchange, extraction, roasting etc. About 90% of the metal waste comes from components, cables etc. may be recycled in theory, while the rest contains dangerous substances and must be deposited.
  • the present invention concerns, as mentioned, a method and a machine for dismantling apparatuses, e.g. a TV apparatus with a picture tube or other kind of display provided in a cabinet.
  • the new features of the method of the invention is that the apparatus at least go through a number of process steps where fixed reference points at the display are determined electronically, where the electronically determined fixed reference points are used as input for the further treatment, and where in proximity of all fastening points between display and cabinet there is effected a mechanical separation of cabinet from display, where this separation occurs on the background of the electronic input.
  • the machine is constructed with at least two zones, namely a measuring zone in which the apparatus to be dismantled is positioned in a fixture and fixed reference points are measured, and a separating zone in which the individually disposed units separate cabinet and display.
  • the machine is particularly suited for separating TV apparatuses as these are usually all made more or less uniform with a fastening point at each corner of the display.
  • fastening points between display and cabinet.
  • These fastening points, or other fixed reference points in connection with the display are determined electronically in the measuring zone, and these data are used for the subsequent mechanical treatment of the apparatus occurring in the separating zone.
  • the machine according to the invention is designed so that the separating zone has units that may release the display from the cabinet itself. By this process, the cabinet is divided into several pieces that are sent on to final sorting.
  • Computer displays may be treated to some extent in the facility, but many of these are so differently constructed that the old well-known manual method of separating is the fastest. However, computer displays of the flat panel type are somewhat easier to handle than the types with picture tube.
  • a preferred way of determining the position of the apparatus is to position it by starting from the centre of the display, e.g. from the electron gun of a picture tube, and subsequently to determine fixed reference points at the display, normally the fastening points of the display to the cabinet. In this way is achieved an unambiguous data input that may be processed and applied in connection with the subsequent separation in the separating zone.
  • a preferred method for positioning and determining fixed reference points at the display is to use light marking of the fixed reference points, and where the light marking is supervised by one or more cameras connected to a so-called vision system in which image data are collected, processed and transformed to input data that may be used for the further treatment of the apparatus.
  • a computer unit calculates the coordinates and allows the apparatus to go on if e.g. the measured coordinates in an apparatus lies within a given tolerance.
  • the system may be with software compensating for inaccuracies caused by the viewing angles of the cameras - this may be achieved empirically and is known from elsewhere where vision systems are applied,
  • the light marking may possibly be in the form of laser light or other suitable light, but other types of marking methods may also be applied where one or more points are determined electronically.
  • a further variant of a method for dismantling apparatuses according to the invention is where positioning and determining of fixed reference points on the display are performed by using at least one camera, where the image is reproduced on a screen after which the fixed reference points are selected with an electronic pointer, where data are collected and processed for input data for further treatment of the apparatus.
  • the apparatus When a cabinet with picture tube is to be measured, it is advantageous to position the apparatus at first. This may advantageously be done by starting from the electron gun of the picture tube which is disposed at the middle of the back side on all types of picture tubes. The apparatus is disposed so that a light ray, or other sighting means, hits fairly at the middle of the electron gun and the apparatus is fixed in a fixture, and subsequently the various fixed reference points are selected, typically one at each corner of the picture tube. This selection may also advantageously be performed with a laser light beam. This selection or pointing out occurs either automatically or in that an operator selects single fixed reference points individually.
  • the fixed reference points now determined are data processed, and by picture tubes with four fixed reference points, the two diagonals are calculated and the measurement is accepted if the diagonal distance between the indicated points is within certain tolerances.
  • the apparatus is brought to the separating zone where separation of cabinet from display is effected by individually positioned units for each fastening point between the cabinet and display. This separation occurs while the apparatus is still fixed in the measured position, and in. a preferred variant is effected simultaneously at all fastening points. Ia this way is achieved a short processing time and thereby large capacity in such a system.
  • the machine may be with fewer units where each unit is used at more than one fastening point in that it is moved between several fastening points.
  • the units may, as mentioned, advantageously be in individually positioned units with cutting/punching tools that are positioned by adjustable actuators.
  • a partial cutting and crushing of the cabinet which is often made of a plastic material, is achieved. This crushing is advantageous as in this way the cabinet is divided into lesser pieces which are more readily treated in the subsequent processes.
  • the machine according to the invention is divided into at least two zones which are connected to a movable work table, possibly a through-going conveyor belt or a round table with a number of fixtures.
  • these fixtures are vacuum fixtures upon which the front side of the display is placed and where it is sucked onto suction cups when positioned correctly. After activation of the vacuum fixture, the fastening points of the display are marked, as previously mentioned.
  • the movable work table is provided with a number of these fixtures, and while one apparatus is separated in the separating zone, the treating of another apparatus is prepared in the measuring zone, whereby a discarded TV apparatus may be dismantled approximately every 30 seconds.
  • the vacuum required for the fixtures is delivered through a central system extending under the movable work table, possibly along a conveyor belt under its top side or along the periphery under a round table.
  • the system is constructed with a longitudinal or annular pipe which is provided with two upwards facing rubber lips that are sucked tightly onto each other when the system is running.
  • a pipe or a hose is provided which is passed down between these rubber lips, whereby air is sucked in through the suction cups until these are activated when a display has been placed on these.
  • the machine according to the invention may be provided with a positioning and measuring system, including one or more cameras, with which points are marked with light, preferably with laser light, or marked in other ways, registered and data processed.
  • a positioning and measuring system including one or more cameras, with which points are marked with light, preferably with laser light, or marked in other ways, registered and data processed.
  • This may advantageously be performed by using a so- called vision system which, as mentioned above, is e.g. used in connection with quality checks in cookie factories and in many other places.
  • vision system which, as mentioned above, is e.g. used in connection with quality checks in cookie factories and in many other places.
  • a preferred variant of a machine according to the invention in connection with the measuring zone there is provided one or more mirrors in the measuring zone, which mirrors are used in connection with the positioning and measuring of an apparatus.
  • the mirrors may be disposed obliquely above the area where the measurement is taking place.
  • the operator and/or the cameras may hereby look into the mirror instead of down into the cabinet.
  • selection of fastening points may be effected with a laser light beam pointing into the mirror and reflected down into the cabinet therefrom.
  • the cameras may be disposed so that they look directly down into the cabinet, and the mirror may in that case be used to look in and/or to angle the light beams by.
  • the units separating the display from the cabinet are constituted by at least one, preferably four hydraulically actuated cutting/punching tools that each are positioned with at least one actuator, preferably with at least two linear actuators. This positioning occurs on the basis of data from the measuring and occurs individually for each cutting/punching tool and individually for each apparatus to be dismantled.
  • Cutting/punching tools are designed so that they can open over heights that are sufficient for all cabinet types, and so that they are strong enough to cut/punch through what they encounter, e.g. PCBs and loudspeakers.
  • the cutting/punching tools are designed with a fixed lower cutter and a movable upper cutter.
  • the machine may be adapted so that the movable work table is resiliently suspended at least at the cutting/punching tools in the separating zone.
  • the movable work table is resiliently suspended at least at the cutting/punching tools in the separating zone.
  • FIG. 1 shows a machine according to the invention schematically and from above.
  • FIG. 1 a machine 1 according to the invention reproduced in principle and schematically.
  • the machine 1 is made with a conveyor belt 2 upon which a number of fixtures 3 are mounted.
  • a number of suction cups 4 are provided on each fixture 3. These suction cups 4 are suited for securing an apparatus 5 with a display, shown here

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne un procédé et une machine (1) de désassemblage d'appareils (5) comportant un coffret (12) contenant un afficheur (6), tels que des postes de télévision, les appareils (5) étant préparés manuellement ou mécaniquement en vue de séparer le coffret (12) et l'afficheur (6) pour en assurer le recyclage. Le procédé de l'invention est caractérisé en ce qu'un appareil (5) subit plusieurs étapes de traitement consistant : à déterminer par voie électronique des points de référence fixes (11) au niveau de l'afficheur (6), lesdits points de référence fixes (11) déterminés par voie électronique étant utilisés comme informations d'entrée pour les étapes de traitement ultérieures; et à réaliser la séparation mécanique du coffret (12) et de l'afficheur (6), ladite séparation mécanique étant réalisée en fonction des informations d'entrée.
PCT/DK2007/000344 2006-07-06 2007-07-05 Procédé et machine de d;montage d'appareils équipés d'un afficheur Ceased WO2008003323A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200600933 2006-07-06
DKPA200600933 2006-07-06

Publications (1)

Publication Number Publication Date
WO2008003323A1 true WO2008003323A1 (fr) 2008-01-10

Family

ID=38894214

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2007/000344 Ceased WO2008003323A1 (fr) 2006-07-06 2007-07-05 Procédé et machine de d;montage d'appareils équipés d'un afficheur

Country Status (1)

Country Link
WO (1) WO2008003323A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117733511A (zh) * 2023-12-29 2024-03-22 苏州弘盛耀电子科技有限公司 一种激光切割的显示器返修拆解设备、系统及方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08185801A (ja) * 1994-12-27 1996-07-16 Sony Corp Ｃｒｔ機器分離解体方法及び装置
EP0729170A1 (fr) * 1995-02-23 1996-08-28 Sony Corporation Dispositif et procédé pour collecter des tubes à rayons cathodiques usagés
EP0822014A2 (fr) * 1996-07-30 1998-02-04 Matsushita Electric Industrial Co., Ltd. Procédé et dispositif pour le démontage d'un appareil électronique
WO2003081626A1 (fr) * 2002-03-22 2003-10-02 Proventia Automation Oy Procede de desassemblage de produits electroniques contenant des tubes cathodiques et de recyclage des materiaux
DE102004060142B3 (de) * 2004-12-14 2006-05-04 Engmann, Thomas Verfahren und Vorrichtung zur Demontage von Bildschirmgeräten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08185801A (ja) * 1994-12-27 1996-07-16 Sony Corp Ｃｒｔ機器分離解体方法及び装置
EP0729170A1 (fr) * 1995-02-23 1996-08-28 Sony Corporation Dispositif et procédé pour collecter des tubes à rayons cathodiques usagés
EP0822014A2 (fr) * 1996-07-30 1998-02-04 Matsushita Electric Industrial Co., Ltd. Procédé et dispositif pour le démontage d'un appareil électronique
WO2003081626A1 (fr) * 2002-03-22 2003-10-02 Proventia Automation Oy Procede de desassemblage de produits electroniques contenant des tubes cathodiques et de recyclage des materiaux
DE102004060142B3 (de) * 2004-12-14 2006-05-04 Engmann, Thomas Verfahren und Vorrichtung zur Demontage von Bildschirmgeräten

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117733511A (zh) * 2023-12-29 2024-03-22 苏州弘盛耀电子科技有限公司 一种激光切割的显示器返修拆解设备、系统及方法

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