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WO2006128661A1 - Dispositif pour produire un produit intermediaire ou le produit final pour fabriquer des plaques a base de bois - Google Patents

Dispositif pour produire un produit intermediaire ou le produit final pour fabriquer des plaques a base de bois Download PDF

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Publication number
WO2006128661A1
WO2006128661A1 PCT/EP2006/005113 EP2006005113W WO2006128661A1 WO 2006128661 A1 WO2006128661 A1 WO 2006128661A1 EP 2006005113 W EP2006005113 W EP 2006005113W WO 2006128661 A1 WO2006128661 A1 WO 2006128661A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
light barrier
belt
conveying direction
pressing
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/EP2006/005113
Other languages
German (de)
English (en)
Inventor
Josef Haitzmann
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.)
Kaindl Flooring GmbH
Original Assignee
Kaindl Flooring 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 Kaindl Flooring GmbH filed Critical Kaindl Flooring GmbH
Publication of WO2006128661A1 publication Critical patent/WO2006128661A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
    • G01V8/16—Detecting, e.g. by using light barriers using one transmitter and one receiver using optical fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/24—Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
    • B30B5/06—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/10—Arrangements of rollers
    • B65G39/12—Arrangements of rollers mounted on framework
    • B65G39/16—Arrangements of rollers mounted on framework for aligning belts or chains

Definitions

  • the present invention relates to an apparatus for producing an intermediate product or the final product of the production of wood-based panels, which have on at least one of their surfaces a functional layer o, by pressing at least two layers of material, comprising a belt press with at least one band, which in a Moving direction and in a direction orthogonal to the conveying direction in a pressing chamber exerts a compressive pressure on the at least two layers of material, in an environment whose temperature is more than 100 0 C, and a detector arrangement for detecting the position of a side edge of the tape along a direction orthogonal to the conveying direction.
  • the wood-based panels may be, for example, floor panels, work panels or the like, comprising a fiberboard, preferably MDF or HDF board, or chipboard formed core plate, which on its visible surface a decorative layer as a functional layer and / or on their the Visible surface facing away from a Martinezzug Schweizer as a functional layer.
  • the core plate and the decorative layer or / and the counteracting layer can form the at least two layers of material which are pressed together by means of the device according to the invention to form the wood-based end product.
  • FIG. 1a shows the structure of such a known plate 200 on a hoisto base.
  • one or more functional layers are or are arranged on at least one surface of the core plate 210.
  • a decorative layer 212 On the visible surface of the core plate 210 may be provided a decorative layer 212, which may be multi-layered, and for example a visual position 214 and a carrier layer 216 may include.
  • a single-layer Jacobyak für 218 may be provided on the surface opposite the visible surface of the core plate 210.
  • the decorative layer 212 or / and the Gegenzug Mrs 218 may be formed as a laminate comprising one or more resin-impregnated paper layers.
  • these paper layers can form layers of material which are pressed by means of the device according to the invention into the intermediate laminate.
  • the core plate 210 is usually formed by compressing a loose fill of resin coated wood fibers or wood shavings.
  • the bed can be regarded as being formed by a large number of loose layers, so that the core plate 210 also represents an intermediate product which is produced by means of the inventive device by pressing these loose layers.
  • belt presses for the production of laminates or for the coating of plates (for example MDF boards or particle boards) usually belt presses, in particular double belt presses are used.
  • double belt presses two steel belts, which exert a pressing pressure on the material layers to be pressed, are deflected by steel rollers. It may happen that a steel strip is displaced in a direction orthogonal to the conveying direction on the steel roll, wherein the friction of the steel strip on the steel roll over time creates a burr on the steel strip and a groove is ground in the steel roll. These unwanted burrs on the steel strips can lead to increased cracking.
  • the steel strip must therefore be regularly deburred, resulting in increased repair costs.
  • Each band change also enforces a machine downtime.
  • the in-line groove in the steel roller the band control is inaccurate what also leads to repair costs and machine downtime, since the steel roller must be replaced in this case.
  • Plunger and roller are slidably mounted on bearings 106 in the longitudinal direction of the plunger 102 and a spring 108, which is supported on the roller 104 and the belt 10 facing the bearing 106, provides a restoring force of the roller 104 in the direction of the belt 10 ready.
  • the side edge 12 may contact the roller 104 and its roller and the roller when it is displaced in the direction of the mechanical detector unit 100 Move plunger 102 against the restoring force of the spring 108 along the longitudinal direction of the plunger 102.
  • An initiator 110 disposed in a water-cooled casing detects this displacement of the plunger 102, and outputs as a detection signal, for example, a voltage whose value is proportional to a displacement amount of the plunger 102.
  • the invention provides a generic device in which the detector arrangement comprises a light barrier unit arranged in the press room, a sensor unit arranged outside the press room and at least one light waveguide connecting the light barrier unit and the sensor unit.
  • This detector arrangement has the advantage that a non-contact detection of the position of the side edge of the belt is possible without temperature-sensitive components must be arranged in the press room or in the vicinity of the press room, since in the immediate vicinity of the band, only the light barrier unit consisting of at least a can be operated at temperatures of up to 300 0 C operable optical fiber head, as well as the operable also at high temperatures optical fiber must be arranged.
  • the temperature-sensitive sensor unit can be arranged at a sufficient distance from the press room.
  • the light barrier unit or the or each optical waveguide head comprise a light barrier array comprising at least two light barriers.
  • the position of the side edge of the tape can be detected more accurately, wherein the spatial resolution of the detector array is given by the lateral distance of second array elements.
  • a detector arrangement can be assigned to both side edges of the band. Due to this redundancy, the reliability of the detector arrangements can be improved, since a disturbance of a detector arrangement immediately becomes noticeable due to an inconsistency of the measured values of both detector arrangements.
  • light barriers are understood as meaning both light barriers which operate according to the reflection principle and light barriers which operate according to the interrupter principle
  • a breaker photocell has two optical waveguide heads, each with optics for decoupling light from the light source on an optical waveguide head and the sensor are arranged on the other optical waveguide head, and the object to be detected is pushed between the two optical waveguide heads.
  • the photocell unit used in the present invention may alternatively operate on the principle of reflection, which has the advantage of a simpler arrangement, since an optical waveguide head and an optical waveguide can be omitted, or it may operate on the interrupter principle, and thus a reliable independent of the reflection properties of the tape Deliver measurement result.
  • Fig. 1a is a schematic representation of the structure of known 5 wood-based panels, which on at least one of them
  • Fig. 1b is a schematic representation of a conventional detector arrangement for detecting the position of a side edge of an o tape in a belt press for producing plates on
  • FIG 3 shows a detector arrangement according to the invention in accordance with a second embodiment of the present invention.
  • the detector arrangement 1 comprises two light waveguide heads 14, 16 serving as light barrier arrays, which are respectively arranged below and above the side edge 12 of the steel strip 10 of the belt press (not shown) the side edge 12 of the Bandes 10 projects into the area between the light barrier units 14, 16.
  • These light barrier arrays operating according to the interrupter principle are connected to a commercially available optical sensor head 22 by means of optical waveguides 18, 20, which preferably each comprise a bundle of glass fibers.
  • the optical waveguides 18, 20 are in this case dimensioned so that the sensor head 22 has a sufficient distance from the pressing space of the belt press, so that it can be ensured that in the region of the sensor head 22, the temperatures do not exceed about 50 0 C.
  • the light guides 18, 20 are about 2 meters long.
  • a holder 24 fixes the light barrier units 14, 16 in the desired positions in the vicinity of the side edge 12 of the belt 10.
  • Light from an infrared light source, for example an LED, arranged in the sensor head 22 is coupled into the glass fibers of the optical waveguide bundle 20 and coupled out at the other end of the optical waveguide bundle 20 so that preferably light of the same intensity is coupled into each light barrier array element of the optical waveguide head 16. From the optical waveguide head 16 thus occur at uniform intervals arranged rays in the direction of the other optical waveguide head 14. Depending on the lateral position of the belt 10, some of these beams are absorbed or reflected by the belt 10, so that only at the positions where the belt 10 is not light on the optical fiber head 14 arrives, and here in the optical fiber bundle 18 is coupled ,
  • An infrared light sensor arranged in the sensor head 22 detects the intensity of the light coupled out of the optical waveguide bundle 18 and can then directly determine from this intensity the position of the side edge 12 of the belt 10 in a direction perpendicular to the conveying direction F, which is proportional to the detected light intensity.
  • a plurality of infrared light sensors may be arranged in the sensor head 22, so that in each case one Sensor corresponds to an array element of the optical waveguide head 14, and the position of the side edge of the belt 12 can then be determined by the individual signals of the sensors.
  • Fig. 3 shows a second embodiment of the present invention, in which the light barrier unit does not operate, as in the first embodiment, according to the interrupter principle, but operates on the reflection principle.
  • the same components as in the first embodiment described above are denoted by the same reference numerals, each with the suffix "a".
  • the tape 10 has a relatively good reflectivity, so that a sufficiently strong reflected signal can be provided without causing excessive losses due to absorption and scattering of the light incident on the tape 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

La présente invention concerne un dispositif conçu pour produire un produit intermédiaire ou le produit final pour fabriquer des plaques à base de bois qui présentent une couche fonctionnelle sur au moins une de leurs surfaces, par compression d'au moins deux couches de matière. Ce dispositif comprend une presse à bande comprenant au moins une bande (10) qui se déplace dans une direction de transport (F) et qui exerce une pression de presse sur lesdites deux couches de matière dans une direction orthogonale à la direction de transport (F) dans une chambre de presse et ce dans un environnement dont la température est supérieure à 100 °C, ainsi qu'un dispositif détecteur (1) conçu pour détecter la position d'un bord latéral (12) de la bande (10) dans une direction orthogonale à la direction de transport (F). Le dispositif détecteur (1) comprend une unité de barrière lumineuse (14, 16), une unité de détection (22) placée à l'extérieur de la chambre de presse et au moins un guide d'ondes lumineuses (18, 20) conçu pour relier l'unité de barrière lumineuse (14, 16) et l'unité de détection (22).
PCT/EP2006/005113 2005-05-30 2006-05-29 Dispositif pour produire un produit intermediaire ou le produit final pour fabriquer des plaques a base de bois Ceased WO2006128661A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005024692.3 2005-05-30
DE200510024692 DE102005024692A1 (de) 2005-05-30 2005-05-30 Vorrichtung zur Herstellung eines Zwischenprodukts oder des Endprodukts der Fertigung von Platten auf Holzbasis

Publications (1)

Publication Number Publication Date
WO2006128661A1 true WO2006128661A1 (fr) 2006-12-07

Family

ID=36636948

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/005113 Ceased WO2006128661A1 (fr) 2005-05-30 2006-05-29 Dispositif pour produire un produit intermediaire ou le produit final pour fabriquer des plaques a base de bois

Country Status (2)

Country Link
DE (1) DE102005024692A1 (fr)
WO (1) WO2006128661A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113183276A (zh) * 2020-01-29 2021-07-30 辛北尔康普机器及成套设备有限责任公司 用于监控在连续压机中的钢带的方法以及连续压机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021128383A1 (de) * 2021-10-29 2023-05-04 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren und Vorrichtung zur Zustandsüberwachung eines Bandes, kontinuierliche Presse zur Herstellung von Werkstoffplatten und Computerprogrammprodukt

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527686A (en) * 1982-01-18 1985-07-09 Ricoh Co., Ltd. System for correcting deflection of belt from its normal path of movement
US5006719A (en) * 1988-07-26 1991-04-09 Heidelberger Druckmaschinen Ag Device for detecting the edge location of an object
DE4030228A1 (de) * 1990-09-25 1992-03-26 Siempelkamp Gmbh & Co Kontinuierliche presse fuer die herstellung von spanplatten, faserplatten, laminatplatten u. dgl.
EP0698752A2 (fr) * 1994-03-23 1996-02-28 Mitsubishi Jukogyo Kabushiki Kaisha Dispositif de réglage d'une courroie et machine à fabriquer du carton
US5626804A (en) * 1993-06-29 1997-05-06 General Electric Company Roller position controller for a continuous belt press
FR2825176A1 (fr) * 2001-05-22 2002-11-29 Jean Paul Clovis Dispositif de detection optique a grande portee utilisable en atmosphere explosible en securite intrinseque
WO2003068638A1 (fr) * 2002-02-11 2003-08-21 Douglas John Cumberlege Rouleau inferieur d'entrainement d'une courroie transporteuse et installations comportant ce rouleau
WO2004096531A1 (fr) * 2003-05-02 2004-11-11 Kronospan Technical Company Ltd. Presse comprenant une correction d'une marche de bande de pressage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507161A (en) * 1968-11-29 1970-04-21 Weyerhaeuser Co Driving endless metal bands
DE10322227A1 (de) * 2003-05-18 2004-12-09 Dieffenbacher Gmbh + Co. Kg Verfahren und Anlage zur Stahlbandführung in einer kontinuierlich arbeitenden Presse

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527686A (en) * 1982-01-18 1985-07-09 Ricoh Co., Ltd. System for correcting deflection of belt from its normal path of movement
US5006719A (en) * 1988-07-26 1991-04-09 Heidelberger Druckmaschinen Ag Device for detecting the edge location of an object
DE4030228A1 (de) * 1990-09-25 1992-03-26 Siempelkamp Gmbh & Co Kontinuierliche presse fuer die herstellung von spanplatten, faserplatten, laminatplatten u. dgl.
US5626804A (en) * 1993-06-29 1997-05-06 General Electric Company Roller position controller for a continuous belt press
EP0698752A2 (fr) * 1994-03-23 1996-02-28 Mitsubishi Jukogyo Kabushiki Kaisha Dispositif de réglage d'une courroie et machine à fabriquer du carton
FR2825176A1 (fr) * 2001-05-22 2002-11-29 Jean Paul Clovis Dispositif de detection optique a grande portee utilisable en atmosphere explosible en securite intrinseque
WO2003068638A1 (fr) * 2002-02-11 2003-08-21 Douglas John Cumberlege Rouleau inferieur d'entrainement d'une courroie transporteuse et installations comportant ce rouleau
WO2004096531A1 (fr) * 2003-05-02 2004-11-11 Kronospan Technical Company Ltd. Presse comprenant une correction d'une marche de bande de pressage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113183276A (zh) * 2020-01-29 2021-07-30 辛北尔康普机器及成套设备有限责任公司 用于监控在连续压机中的钢带的方法以及连续压机

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Publication number Publication date
DE102005024692A1 (de) 2006-12-07

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