EP3995275A1 - Dispositif d'application d'adhésif, machine à encoller des chants et procédé de fonctionnement d'un tel dispositif - Google Patents

Dispositif d'application d'adhésif, machine à encoller des chants et procédé de fonctionnement d'un tel dispositif Download PDF

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Publication number
EP3995275A1
EP3995275A1 EP21206651.8A EP21206651A EP3995275A1 EP 3995275 A1 EP3995275 A1 EP 3995275A1 EP 21206651 A EP21206651 A EP 21206651A EP 3995275 A1 EP3995275 A1 EP 3995275A1
Authority
EP
European Patent Office
Prior art keywords
adhesive
application device
edge
container
adhesive application
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
EP21206651.8A
Other languages
German (de)
English (en)
Inventor
Timo HEIDENREICH
Stefan Hüsener
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 EP3995275A1 publication Critical patent/EP3995275A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
    • B27G11/02—Glue vessels; Apparatus for warming or heating glue

Definitions

  • the invention relates to an adhesive application device according to the preamble of claim 1, an edge banding machine and a method for operating such a machine.
  • edge strips or edge bands are usually approached to the narrow sides of such workpieces and attached to them.
  • An adhesive is used for this purpose - it can usually be a hot-melt adhesive - which is applied either to the narrow side of the workpiece itself or to the edgeband.
  • Adhesive application devices are used for this purpose, e.g. B. adhesive application rollers or adhesive application nozzles, via which the usually liquid adhesive is then applied to the intended surface of the workpiece or edge band.
  • the adhesive used is a consumable, it must be ensured that sufficient adhesive is always available. In order to optimize processes, it is helpful to recognize in good time when the adhesive used is running low and may need to be refilled or reordered.
  • the invention is therefore based on the object of specifying an adhesive application device of the type mentioned at the outset, as well as an edge banding machine and a method for operating such a machine, with which can ensure that sufficient adhesive is always available.
  • the adhesive application device serves to apply adhesive to the narrow side of a panel-shaped workpiece made of wood or wood substitutes and/or to edge bands. It has an adhesive unit, which includes an adhesive application device, in particular an adhesive application roller or adhesive application nozzle, and/or an adhesive container for receiving adhesive. An extruder or a printing device, for example, can also be used as an adhesive application device. Adhesive is any form of, in particular liquid, medium that is suitable for creating a firm connection between the narrow side of the workpiece and the edge band. In particular, the adhesive can be a hot-melt adhesive. According to the invention, the adhesive application device has an adhesive quantity detection device which is set up to detect the quantity of adhesive present or used in the adhesive application device or the change in this quantity over time.
  • the operator of a corresponding wood processing machine By recording the amount of adhesive present or used, the operator of a corresponding wood processing machine always has information about the adhesive that is still available, so that he can always tell when new adhesive is needed must be provided. In this way, it is possible to determine in good time how many workpieces or how many meters of edge banding can still be coated with the existing adhesive, especially with a view to a specified parts plan. It is both possible to determine the amount of adhesive directly, for example by weighing, or the change in the amount of adhesive over time, e.g. B. via volume flow measurements.
  • the adhesive quantity detection device comprises a weighing device.
  • a weighing device can include, for example, a pressure cell, a tension cell, a tension-compression cell, a piezoelectric force transducer, a platform load cell, a bending and shear beam load cell, an optical strain sensor or a strain gauge. This is arranged in such a way that it measures the weight exerted by the adhesive unit and/or another component of the adhesive application device, or a force that is representative of the weight exerted by the adhesive unit or the other component of the adhesive application device, or the change over time in the weight of the Adhesive unit and / or the other component of the adhesive applicator can detect.
  • the weighing can be carried out on the adhesive unit or an associated adhesive container of the adhesive application unit. It is of course also possible to use other components of the adhesive application device in where the adhesive is temporarily stored prior to being fed to the adhesive application device.
  • the adhesive quantity detection device includes a volume flow measuring device.
  • the supply of adhesive to the adhesive unit can be recorded volumetrically. This measurement is differentially possible, so that information about the inflow of adhesive is available at all times.
  • the adhesive application device comprises as a further component an adhesive reservoir, in particular having the or a further adhesive quantity detection device.
  • Adhesive that is still to be processed can be stored in this store until it is called up when required.
  • a granulate storage device, a container magazine or a container drop tower can be used as an adhesive supply store, for example.
  • an adhesive premelting device as a further component, in particular one having the or a further adhesive quantity detection device.
  • an adhesive premelter may be or include, for example, a tank melter, a bag melter, or a drum melter. With the aid of the adhesive premelting device, the adhesive that is not yet flowable or only slightly flowable can be melted.
  • the adhesive premelting device is fed from the adhesive reservoir.
  • provision can be made in particular for the adhesive supply store to be connected to the adhesive premelting device via a second adhesive feed. Provision can furthermore be made for the adhesive premelting device to feed the adhesive container of the adhesive unit with adhesive, in particular via a first adhesive supply.
  • adhesive can be replenished if, for example, the adhesive quantity detection device signals a corresponding need for adhesive.
  • the invention also relates to an edge banding machine for edging the narrow sides of panel-shaped workpieces made of wood or wood substitutes with edge bands.
  • the edge banding machine has the adhesive application device described above.
  • the edge banding machine is designed to coat the narrow sides of the workpieces and/or edge bands with adhesive by relatively moving the workpieces or edge bands and adhesive application device along a feed direction.
  • This feed direction does not necessarily have to be linear, especially when processing free forms, the workpieces can also have radii.
  • the edge bands do not necessarily have to be linear when coated with adhesive, but can also be guided by radii. Even if we are specifically talking about an edge banding machine, it is about fastening of the edge band on the workpiece does not necessarily mean glue, so the term glue is to be equated with the term adhesive, which has already been explained in more detail above.
  • the determination of the amount of adhesive does not have to be limited to the fact that only the information about adhesive that is still present or has already been used is made available. It is of course possible to feed this information back into the process in order to be able to control or regulate the process as it progresses. Provision is therefore preferably made for the edge banding machine according to the invention to have a control device which is designed to control the application of adhesive and this in particular on the basis of the detected quantity of adhesive.
  • the edge banding machine preferably comprises an evaluation device.
  • this can be designed to evaluate the force values recorded by the weighing device continuously or at discrete time intervals.
  • this or a separate evaluation device can also be designed to evaluate the volume flow recorded by the volume flow measuring device continuously or at discrete time intervals.
  • the evaluation device can be designed to determine a measure of the adhesive still contained in the adhesive application device and/or the adhesive that has already been used on the basis of the recorded and evaluated values. This information can then be transmitted, for example, to the control device mentioned above whereby the edge banding machine is controlled in response to the determined values.
  • the edge banding machine comprises an adhesive collecting device which is arranged in such a way that it does not collect adhesive that has been applied to the workpiece and/or the edge band.
  • the adhesive collecting device is assigned the or an adhesive quantity detection device, which detects the quantity of adhesive that has been caught. In this way, not only can the amount of adhesive that actually arrives at the workpiece or edge band be determined, but also the loss of adhesive that is lost during the application process of the adhesive. This allows an even more precise determination and evaluation of the current or future need for adhesive and represents valuable information that can also be forwarded to the control device.
  • the invention relates to a method for operating an edge banding machine described in more detail above.
  • the quantity or change in quantity can be detected by measuring a weight or also by measuring a volume or the respective change over time in the variables mentioned.
  • a reference measurement is preferably first carried out as a measure of the weight exerted by the adhesive unit and/or another component of the adhesive application device.
  • This reference measurement is primarily used to determine an empty weight, so that all further measurements can then be made relative to this empty weight.
  • a reference measurement is carried out to determine a reference measure for the initial state, in particular the empty weight of the adhesive application device and/or the adhesive container.
  • the initial state can be, for example, the empty state of the adhesive agent container or the adhesive agent application device, but this is not absolutely necessary since a relative measurement is sufficient to obtain information about the adhesive agent consumption.
  • step c preferably in step c.
  • the weight force exerted by the adhesive unit or a force that is representative of the weight force exerted by the adhesive unit and/or another component of the adhesive application device, or the change over time in the weight force of the adhesive unit and/or the other component of the adhesive application device is continuously or discontinuously recorded.
  • step c. values recorded in a predetermined time interval can be compared with data of the workpieces provided with an edge band in this time interval, in particular with the quantity of edge band material used or the length of the narrow sides coated with the edge band. In this way, valuable information can be obtained about the current consumption and the future need for adhesive during the operation of the system.
  • step c. the amount of adhesive used per meter of workpiece or per meter of edging tape can be determined.
  • step c. or other steps is assigned to a specific workpiece and stored along with other parameters pertaining to that workpiece.
  • This information is then also available after the completion of a corresponding workpiece for the machine-internal statistics, on the one hand, and on the other hand the manufactured parts can also be provided with information carriers which, among other things, contain information about the quantity and type of adhesive used, in addition to other technical specifications.
  • step c. determine values of the adhesive consumption and/or fill level of the adhesive container is recorded, in particular continuously.
  • this information provides valuable insights into whether, for example, the adhesive consumption per meter of workpiece or edge band is increasing or decreasing during operation. This can provide information as to whether, for example, undesirable changes in the adhesive application have occurred or whether the quality of the adhesive has changed.
  • the change can be made manually or automatically if the measured changes in the application of adhesive should deviate from specified target values. In this way, changes are not only recognized, but it is also possible to react to such changes manually or automatically.
  • adhesive in particular a corresponding amount of adhesive
  • This can be in the form of liquid adhesive, but adhesive granules can also be refilled.
  • different measuring methods can be used to measure the filling level.
  • the fill level can be detected via ultrasonic propagation time measurement, via microwave sensors, via radar sensors, via rotary paddle switches, via vibration sensors or via floats.
  • the type of detection is also fundamentally flexible, so the filling level can be determined optically, inductively and/or capacitively.
  • Further information can also be obtained from the procedure according to the invention. For example, it can be provided that from the in step c. determined values, in particular from the consumption of adhesive and/or Filling level of the adhesive container, a forecast of the number of workpieces and/or edge bands that can still be coated with adhesive is determined. Such forecasts are particularly important if a certain number of workpieces still have to be processed within a shift and it is to be determined whether the parts plan can be processed completely or whether there may be delays due to increased consumption of adhesive, for example.
  • the information about the adhesive used can also be obtained by measuring an adhesive volume flow. Provision is preferably made here for the adhesive volume flow in the above-mentioned first adhesive feed and/or in the second adhesive feed to be recorded via corresponding measuring devices.
  • figure 1 shows an exemplary adhesive application device according to the invention in a perspective view.
  • figure 2 shows a block diagram to illustrate different configuration options of the adhesive application device according to the invention.
  • FIG. 1 The exemplary arrangement shown shows a section of an edge banding machine, in which an adhesive unit 2 is again shown as an example, which has an adhesive container 3 and an adhesive applicator roller 4 .
  • 5 designates a panel-shaped workpiece, for example one made of wood or wood substitutes
  • 6 designates its narrow side to be coated with an edgeband, indicated only by the rectangle K in the drawing.
  • Such a workpiece 5 is usually guided through the machine in the edge banding machine in a feed direction X and is coated with adhesive along this feed direction X.
  • the adhesive application roller which is wetted with adhesive from the adhesive container 3 , is set up in such a way that it can apply adhesive to the narrow side 6 of the workpiece 5 .
  • P1 designates that the adhesive agent container 3 can be filled with adhesive agent from this direction. This can be done continuously, but can also be replenished in batches.
  • the adhesive application device can also include a nozzle and/or another application unit instead of an application roller.
  • an adhesive agent container does not necessarily have to be present, just as a nozzle could be continuously fed with adhesive agent.
  • the amount of adhesive is recorded.
  • a weighing device 8 is provided, which is arranged between the adhesive container 3 and a storage section 7 of the edge banding machine.
  • the weight force F G exerted by the adhesive container 3 or the adhesive unit 2 can be determined.
  • the weight force F G will decrease when adhesive is used up and increase when new adhesive agent enters the adhesive agent container 3 via P1.
  • a reference measurement is preferably carried out, which measures the empty weight and thus the weight of the empty adhesive agent unit 2 or the empty adhesive agent container 3 . The capture further Operation of the device is then relative to this reference.
  • an adhesive application device 1 is shown schematically.
  • the adhesive unit 2 which here comprises an adhesive applicator roller 4 and an adhesive container 3
  • the line or the feed P1 which in the example shown supplies the adhesive container 3 with adhesive 11, 11', can be configured to reach an application nozzle or other application unit (not shown), so that an adhesive container 3 is not necessary at this point in such an embodiment.
  • the device can comprise an adhesive premelter 10, which is still solid or at least highly pasty adhesive 11 heated to the viscosity suitable for application.
  • This molten adhesive 11 is then introduced via feeder P1 into the adhesive unit 2, either into the container 3 shown where it is labeled 11' as ready-to-apply adhesive, or directly into a nozzle or other application unit.
  • the adhesive application device 1 can have an adhesive reservoir 20 in which adhesive that is still to be melted is kept ready and can be transported to the adhesive premelting device 10 via the supply line, for example a line P2.
  • all of these components mentioned namely the adhesive premelting device 10, the adhesive container 3 and the adhesive reservoir 20, which are containers of one type or another, can have measuring devices 15, 13, 12 for the filling level of the respective component.
  • a control device which can be part of an edge banding machine that includes the adhesive application device 1 according to the invention, can be signaled whether the fill level of one of the components mentioned is still sufficient or whether new adhesive 11, 11' needs to be refilled.
  • All of the components 3, 10, 20 mentioned can alternatively or additionally be equipped with a weighing device 8 so that—assuming a reference measurement as described above—information about the respective fill level can also be obtained by detecting the respective weight.
  • information about the adhesive used and, in particular, the adhesive used per workpiece or per meter of edgeband can also be obtained from this.
  • the respective feeds P1 and P2 can be equipped with volume flow measuring devices 9 for P2 or 14 for P1.
  • Adhesive 11, which passes the corresponding measuring device 9 or 14, is thus detected differentially in this case.
  • An instantaneous picture can thus be created of the adhesive currently present in the system. If necessary, this information and/or the information about the above-described changes in the weight of one or a plurality of the individual components 3, 10, 20 can be reported back to the machine control of the edge banding machine, which in turn is then able to use this information to supply To change or regulate adhesives.
  • the latter is particularly advantageous when the adhesive unit 2 does not work with an adhesive container, but continuously feeds an adhesive nozzle.
  • the loss of adhesive ie that portion of the adhesive that does not get onto the workpiece or the edge band
  • an adhesive collecting device 18 can be provided, which in the example shown is a type of trough in the simplest case. Adhesive that does not get onto the workpiece or edge band is then caught in the adhesive collecting device 18 and could also be detected, for example, via a weighing device 8 .
  • an evaluation device it is possible, for example, to use an evaluation device to determine even more precisely what proportion of the used adhesive actually ends up on the workpiece or the edgeband. This information makes it possible to determine the current adhesive requirement even more precisely and thus also to make predictions about the specified one parts plan to be able to set up the adhesive that is still required.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP21206651.8A 2020-11-10 2021-11-05 Dispositif d'application d'adhésif, machine à encoller des chants et procédé de fonctionnement d'un tel dispositif Pending EP3995275A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020129553.7A DE102020129553A1 (de) 2020-11-10 2020-11-10 Haftmittelauftragsvorrichtung, Kantenanleimmaschine und Verfahren zum Betrieb einer solchen

Publications (1)

Publication Number Publication Date
EP3995275A1 true EP3995275A1 (fr) 2022-05-11

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EP21206651.8A Pending EP3995275A1 (fr) 2020-11-10 2021-11-05 Dispositif d'application d'adhésif, machine à encoller des chants et procédé de fonctionnement d'un tel dispositif

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EP (1) EP3995275A1 (fr)
DE (1) DE102020129553A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220016669A1 (en) * 2016-07-08 2022-01-20 Macdonald, Dettwiler And Associates Inc. System and Method for Automated Artificial Vision Guided Dispensing Viscous Fluids for Caulking and Sealing Operations

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022113672A1 (de) 2022-05-31 2023-11-30 Homag Gmbh Bearbeitungseinrichtung mit einem Beschichtungsaggregat sowie Verfahren zum Applizieren von Haftmittel

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DE1206141B (de) * 1964-06-20 1965-12-02 Artur Neumann Geraet zum Auftragen von Leim auf Kanten
US4183321A (en) * 1978-03-16 1980-01-15 Ziegelmeyer Harold R Gluing mechanism for finger slotting machines
US8915280B1 (en) * 2006-12-15 2014-12-23 Glenn Robell System and method for applying adhesive, buffer, and/or liner to I-joists
CN108772926A (zh) * 2018-07-26 2018-11-09 安吉木博家居有限公司 一种家具生产加工用的打磨封边机
DE102017122701A1 (de) * 2017-09-29 2019-04-04 Homag Gmbh Beschichtungsvorrichtung sowie Beschichtungsverfahren
CN110722648A (zh) * 2019-09-05 2020-01-24 厦门市中赛机电科技有限公司 一种胶合板单板自动分离和筛选出单张并涂胶的设备
CN210585681U (zh) * 2019-08-05 2020-05-22 南兴装备股份有限公司 一种具有控制单元的供胶机构
CN112248128A (zh) * 2020-09-09 2021-01-22 林利 一种家具木工板材预铣装置及方法
CN113070974A (zh) * 2021-04-23 2021-07-06 豪伟实业(湖北)有限公司 一种木门送带涂带一体机
EP3919184A1 (fr) * 2020-06-05 2021-12-08 SCM Group S.p.A. Chariot amélioré pour stocker et chauffer au moins un dispositif de collage
EP3919183A1 (fr) * 2020-06-05 2021-12-08 SCM Group S.p.A. Chariot pour stocker et chauffer au moins un dispositif de collage

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DE202004001038U1 (de) 2004-01-24 2004-04-08 Delle Vedove Maschinenbau Gmbh Tandem-Kolbenschmelzer
ITPD20050338A1 (it) 2005-11-23 2007-05-24 Fravol Exp Srl Apparecchiatura per la spalmatura di colla su pannelli
DE202009006794U1 (de) 2009-05-12 2009-09-03 Homag Holzbearbeitungssysteme Ag Anleimaggregat
EP2386390A1 (fr) 2010-05-10 2011-11-16 Brandt Kantentechnik GmbH Dispositif d'alimentation en matière adhésive
DE202017104223U1 (de) 2017-07-14 2017-08-04 Holz-Her Gmbh Kantenbearbeitungsmaschine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1206141B (de) * 1964-06-20 1965-12-02 Artur Neumann Geraet zum Auftragen von Leim auf Kanten
US4183321A (en) * 1978-03-16 1980-01-15 Ziegelmeyer Harold R Gluing mechanism for finger slotting machines
US8915280B1 (en) * 2006-12-15 2014-12-23 Glenn Robell System and method for applying adhesive, buffer, and/or liner to I-joists
DE102017122701A1 (de) * 2017-09-29 2019-04-04 Homag Gmbh Beschichtungsvorrichtung sowie Beschichtungsverfahren
CN108772926A (zh) * 2018-07-26 2018-11-09 安吉木博家居有限公司 一种家具生产加工用的打磨封边机
CN210585681U (zh) * 2019-08-05 2020-05-22 南兴装备股份有限公司 一种具有控制单元的供胶机构
CN110722648A (zh) * 2019-09-05 2020-01-24 厦门市中赛机电科技有限公司 一种胶合板单板自动分离和筛选出单张并涂胶的设备
EP3919184A1 (fr) * 2020-06-05 2021-12-08 SCM Group S.p.A. Chariot amélioré pour stocker et chauffer au moins un dispositif de collage
EP3919183A1 (fr) * 2020-06-05 2021-12-08 SCM Group S.p.A. Chariot pour stocker et chauffer au moins un dispositif de collage
CN112248128A (zh) * 2020-09-09 2021-01-22 林利 一种家具木工板材预铣装置及方法
CN113070974A (zh) * 2021-04-23 2021-07-06 豪伟实业(湖北)有限公司 一种木门送带涂带一体机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220016669A1 (en) * 2016-07-08 2022-01-20 Macdonald, Dettwiler And Associates Inc. System and Method for Automated Artificial Vision Guided Dispensing Viscous Fluids for Caulking and Sealing Operations
US11969751B2 (en) * 2016-07-08 2024-04-30 Macdonald, Dettwiler And Associates Inc. System and method for automated artificial vision guided dispensing viscous fluids for caulking and sealing operations

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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

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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