EP3771537A1 - Procédé de traitement de chants - Google Patents

Procédé de traitement de chants Download PDF

Info

Publication number
EP3771537A1
EP3771537A1 EP20186854.4A EP20186854A EP3771537A1 EP 3771537 A1 EP3771537 A1 EP 3771537A1 EP 20186854 A EP20186854 A EP 20186854A EP 3771537 A1 EP3771537 A1 EP 3771537A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
edge strip
edge
joint area
processing method
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.)
Pending
Application number
EP20186854.4A
Other languages
German (de)
English (en)
Inventor
Kevin Christoph Bilges
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.)
IMA Schelling Deutschland GmbH
Original Assignee
IMA Schelling Deutschland 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 IMA Schelling Deutschland GmbH filed Critical IMA Schelling Deutschland GmbH
Publication of EP3771537A1 publication Critical patent/EP3771537A1/fr
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • B27D5/003—Other working of veneer or plywood specially adapted to veneer or plywood securing a veneer strip to a panel edge

Definitions

  • the invention relates to an edge processing method according to the preamble of claim 1.
  • the edge processing method is used in the processing of plate-shaped workpieces made of wood or wood substitute materials in which an edge strip or a plurality of edge strips is / are attached to the narrow side of the plate-shaped workpiece.
  • the corresponding edge strip is drawn around the narrow side so that both ends of the edge strip meet in a joint area.
  • the formation of this joint area is of crucial importance with regard to the processing quality. For example, if the butt joint is too wide, the corresponding plate-shaped workpiece cannot be further processed or picked. The edge strip must be removed and reapplied.
  • the joint gluing is checked by a person through visual inspection and then a decision is made as to whether the workpiece meets the quality requirements. This is very time-consuming, especially in the machine processing of panel-shaped workpieces, which is why there is a desire to largely automate the checking in order to also be able to identify parts with insufficient butt-gluing and to process them accordingly.
  • the object of the present invention is therefore to create an edge processing method which enables extensive automation of the process mentioned.
  • an imaging method is used to check the joint area of the workpiece and to decide whether the joint area meets the quality requirements or not.
  • at least one edge strip is pressed on the narrow side of a plate-shaped workpiece made of wood or wood substitute by means of a pressure device with relative movement of pressure device and workpiece and attached while heating a connecting means provided on the edge strip and / or the workpiece. It is attached either in such a way that one end of the edge strip on the workpiece forms a joint area with the other end of the edge strip or one end of another edge strip. Alternatively, it can be attached in such a way that the side of the edge strip facing the workpiece forms a joint area with the workpiece.
  • the edge strip (s), in particular the abutment area or the joint area mentioned, is / are image-captured by means of an imaging system that tracks the pressure device, in particular an infrared camera or a hyperspectral camera or a light section sensor.
  • an imaging system that tracks the pressure device, in particular an infrared camera or a hyperspectral camera or a light section sensor.
  • the corresponding image of the joint area can be evaluated immediately and the evaluation result can be forwarded to the machine control, which then decides whether the corresponding workpiece has to be subjected to a new coating process with edge strips or whether it is a good part for the further planned processing or commissioning process can be fed.
  • the distance between the ends forming the joint area or the distance in the joint area between the edge strips and the workpiece can be determined from the thermal image recorded by the imaging system. By determining this distance, the distance thus determined can be compared with a predetermined minimum distance or maximum value that is stored in the machine control and fulfills the quality requirements. In this way it can be decided whether there is a good part or not.
  • a further development of the method according to the invention provides that immediately after the aforementioned comparison check, the edge strip or strips is / are removed again from the workpiece if the determined distance exceeds the specified maximum value.
  • the imaging system is used to record an image, in particular a 2D image or 3D image, of the temperature distribution of the at least one edge strip.
  • the temperature distribution can be used, for example, to determine whether the adhesive used has reached the required temperature at all points or whether it has fallen below this. For example, if the temperature distribution shows temperatures that are too low locally, the edge strip may not adhere adequately to the workpiece and must therefore be removed again.
  • the image is captured by the imaging system in a spectral range within the range 400 nm to 2500 nm.
  • the joint or joint area can be measured well, and, on the other hand, a temperature distribution mostly in the infrared range can be recorded.
  • the connecting means comprises a hot melt adhesive and / or a fusible functional layer provided on an edge strip.
  • the functional layer can be melted by a laser source and / or infrared source and / or ultrasound source and / or magnetic field source and / or microwave source and / or hot air source and / or plasma source or is melted by at least one of the sources mentioned.
  • FIGS. 3a and 3b show a workpiece section in a perspective view from above, in which a joint area is checked with a light section sensor.
  • a plate-shaped workpiece 1 is schematically indicated, which is coated with an edge strip 2 on its narrow side.
  • the edge strip 2 which has previously been activated, ie made sticky, is joined to the narrow side of the workpiece 1 and pressed on by means of a pressure roller 31.
  • the pressure roller 31 is part of a device 3 which comprises an imaging system 33, in particular an infrared camera or a hyperspectral camera or a light section sensor.
  • the tracking roller 32 is provided in this case in order to ensure that the distance of the imaging system 33 from the edge band does not change but remains constant.
  • the imaging system is shown 33 of the pressure roller 31 tracked.
  • the relative direction of movement X only indicates that the device 3 - the pressure roller 31 and the imaging system 33 can also be moved separately and independently of one another - and the workpiece 1 must move relative to one another. This can be done in a continuous process, of course it can also be used in a machining center.
  • the schematic illustration of the Figure 1 can be applied to both situations.
  • the joint area S is shown by way of example, which is produced either by two ends 2a, 2a 'of the same edge strip 2 or by two butting ends of two different edge strips 2, 2'.
  • the imaging system 33 is shown in FIG Figure 2 The situation shown is now positioned above the butt joint and can capture this image.
  • An evaluation device (not shown) either determines a temperature profile, which is recorded with the imaging system 33 as the edge strip 2 is passed over, in order to check whether the edge strip 2 is equally well connected to the workpiece 1 everywhere.
  • the evaluation device can determine the width of the joint from the image of the butt joint recorded by the imaging method and compare this with a threshold value which, for example, contains a maximum dimension for the width of the butt joint.
  • the evaluation device can then decide whether or not the edge strip 2 has to be removed from the workpiece 1 or not. Corresponding arrangements can then be passed on to the machine control system.
  • the imaging method for example the glue line, the between edge strips 2 and workpiece 1 is created. Analogously to the butt joint, this glue joint can also be measured with the imaging system 33 and compared with correspondingly stored quality criteria or quality measures.
  • the imaging system 33 is formed by a light section sensor.
  • a light source preferably a laser light source, sends a light beam 4 expanded into a line onto the surface of the workpiece 1, from where it is reflected or scattered.
  • the light section sensor also includes a two-dimensional light detection system, which is preferably a CCD camera that detects an image of the surface of the workpiece 1 in the area of the incident light beam 4.
  • the incident light beam 4 and the light beam 4 'detected by the light detection system do not lie in one plane.
  • the evaluation system not shown here, which determines the position of the detected light beam 4 'in the areal light detection system, can calculate a height profile of the surface of the workpiece 1 using the principle of triangulation via the offset of the detected light beam 4' in the light detection system.
  • the workpiece 1 moves under the imaging system 33 in direction x. It is also possible that the workpiece 1 is at rest while the imaging system 33 is moved over the surface of the workpiece 1.
  • the height of the step is determined from the strength of the offset, the position of the edges from the course of the offset over the light beam 4 and the width of the joint area S over the duration of the offset, so that the evaluation system can evaluate the joint area well.
  • the light detection system is preferably a CCD camera. It is not necessary for the system to work in the visible range of light. It is also entirely conceivable that IR light is used, so that an infrared camera or even a hyperspectral camera can also be used. In addition to the light line, the temperature distribution on the surface can also be recorded, for example to determine the quality of the edge strip bonding.
EP20186854.4A 2019-07-29 2020-07-21 Procédé de traitement de chants Pending EP3771537A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019120376.7A DE102019120376A1 (de) 2019-07-29 2019-07-29 Kantenverarbeitungsverfahren

Publications (1)

Publication Number Publication Date
EP3771537A1 true EP3771537A1 (fr) 2021-02-03

Family

ID=71738026

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20186854.4A Pending EP3771537A1 (fr) 2019-07-29 2020-07-21 Procédé de traitement de chants

Country Status (2)

Country Link
EP (1) EP3771537A1 (fr)
DE (1) DE102019120376A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4349553A1 (fr) * 2022-10-04 2024-04-10 IMA Schelling Deutschland GmbH Procédé de finition de bords

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0510231A1 (fr) * 1991-04-25 1992-10-28 Homag Maschinenbau Ag Appareil pour le collage de bordures en ferme de ruban ou de bande sur des matériaux en forme de plaques
DE202018100420U1 (de) * 2017-02-09 2018-04-05 Christof Schulte-Göbel Vorrichtung zum Anbringen von Kantenstreifen
DE102017114970A1 (de) * 2017-07-05 2019-01-10 Homag Gmbh Vorrichtung und Verfahren zum Veredeln von Werkstücken

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10201413A1 (de) * 2002-01-15 2003-07-24 Buerkle Gmbh Robert Verfahren und Vorrichtung zum Beschicken einer Plattenpresse
DE102014008455A1 (de) * 2014-06-05 2015-12-17 Ima Klessmann Gmbh Holzbearbeitungssysteme Vorrichtung und Verfahren zum Aufbringen eines Kantenbandes auf eine Schmalseite eines Werkstücks
DE102014214363B4 (de) * 2014-07-23 2018-03-22 Türmerleim Gmbh Verfahren und Vorrichtung zur Beeinflussung und Regelung eines Verleimungsprozesses
ITUB20152366A1 (it) * 2015-07-21 2017-01-21 Biesse Spa Macchina per la bordatura di pannelli di legno o simili
DE102015114486A1 (de) * 2015-08-31 2017-03-02 Faurecia Innenraum Systeme Gmbh Verfahren zur Herstellung eines Verkleidungselements mit mindestens einer Platte aus holzartigem Material und zugehörige Herstellungsanordnung
DE102015219257A1 (de) * 2015-10-06 2017-04-06 Homag Gmbh Bearbeitungsmaschine und Verfahren zur Bearbeitung von Werkstücken
DE102017205208A1 (de) * 2017-03-28 2018-10-04 Homag Gmbh Vorrichtung und Verfahren zum Beschichten eines Werkstücks

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0510231A1 (fr) * 1991-04-25 1992-10-28 Homag Maschinenbau Ag Appareil pour le collage de bordures en ferme de ruban ou de bande sur des matériaux en forme de plaques
DE202018100420U1 (de) * 2017-02-09 2018-04-05 Christof Schulte-Göbel Vorrichtung zum Anbringen von Kantenstreifen
DE102017114970A1 (de) * 2017-07-05 2019-01-10 Homag Gmbh Vorrichtung und Verfahren zum Veredeln von Werkstücken

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4349553A1 (fr) * 2022-10-04 2024-04-10 IMA Schelling Deutschland GmbH Procédé de finition de bords

Also Published As

Publication number Publication date
DE102019120376A1 (de) 2021-02-04

Similar Documents

Publication Publication Date Title
DE102011078276C5 (de) Verfahren zum Erkennen von Fehlern während eines Laser-Bearbeitungsprozesses sowie Laser-Bearbeitungsvorrichtung
DE102013104545B4 (de) Verfahren und Vorrichtung zum Erkennen von Fehlstellen von abgelegten Faserhalbzeugen
WO2012100766A1 (fr) Procédé et dispositif de surveillance d'un processus
EP1918993A1 (fr) Procédé destiné à structurer des modules solaires et dispositif de structuration
DE102017205208A1 (de) Vorrichtung und Verfahren zum Beschichten eines Werkstücks
EP1448334A1 (fr) Procede et dispositif pour evaluer des points de jonction de pieces
DE102017122701A1 (de) Beschichtungsvorrichtung sowie Beschichtungsverfahren
DE102008031926A1 (de) Verfahren zum schichtweisen Herstellen stark geneigter Flächen
DE102008058422A1 (de) Verfahren und Vorrichtung zur Überwachung eines an einem Werkstück durchzuführenden Laserbearbeitungsvorgangs sowie Laserbearbeitungskopf mit einer derartigen Vorrichtung
EP2008084A1 (fr) Procede d'application et de surveillance d'une structure d'application a fonction de reparation et dispositif associe
DE19724986C2 (de) Verfahren zum Verschweißen von Werkstücken und Vorrichtung zu dessen Durchführung
EP3359358A1 (fr) Machine-outil et procédé d'usinage de pièces
DE102015008891B3 (de) Verfahren und Vorrichtung zur Kantendickenmessung beim Aufbringen von Kantenkaschierung auf die Schmalseiten plattenförmiger Werkstücke
DE102020000630A1 (de) Verfahren und Vorrichtung zum Durchführen und Überwachen eines Bearbeitungsprozesses eines Werkstücks
EP3771537A1 (fr) Procédé de traitement de chants
AT505004B1 (de) Verfahren und einrichtung zur einstellung einer bearbeitungsposition
DE102012202503A1 (de) Kompensation von Dickentoleranzen
AT398177B (de) Verfahren zum löten und vorrichtung zur durchführung dieses verfahrens
WO2014026297A1 (fr) Procédé pour surveiller la position des arêtes de deux largets et mise en œuvre du procédé
DE102007050005A1 (de) Verfahren und Prüfsystem zur zerstörungsfreien Prüfung von Materialverbindungen, insbesondere von Widerstandsschweißverbindungen
DE102016005592B4 (de) Verfahren zum Laserstrahlfügen und Vorrichtung mit einer Laserstrahlenquelle zum Laserstrahlfügen
WO2014195023A1 (fr) Procédé et dispositif de production d'un assemblage
WO2019081120A1 (fr) Procédé et dispositif d'usinage de surface et procédé de fabrication d'un composant moulé
DE102019220319A1 (de) Verfahren und Vorrichtung zum Laserschweißen zweier Bauteile
EP3654034A1 (fr) Procédé d'étalonnage ainsi que procédé et dispositif de mesure

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210217

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20220324

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20240117