EP3403728B1 - Dispositif d'application de colle - Google Patents

Dispositif d'application de colle Download PDF

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Publication number
EP3403728B1
EP3403728B1 EP18172294.3A EP18172294A EP3403728B1 EP 3403728 B1 EP3403728 B1 EP 3403728B1 EP 18172294 A EP18172294 A EP 18172294A EP 3403728 B1 EP3403728 B1 EP 3403728B1
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EP
European Patent Office
Prior art keywords
adhesive
piston
adhesive application
accordance
melt chamber
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.)
Active
Application number
EP18172294.3A
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German (de)
English (en)
Other versions
EP3403728A1 (fr
Inventor
Denis Lorber
Fabian BURK
Vincenzo Dr. FORCILLO
Robert KLAMPFL
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.)
Holz Her GmbH
Original Assignee
Holz Her 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 Holz Her GmbH filed Critical Holz Her GmbH
Publication of EP3403728A1 publication Critical patent/EP3403728A1/fr
Application granted granted Critical
Publication of EP3403728B1 publication Critical patent/EP3403728B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0204—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to the edges of essentially flat articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1007—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
    • B05C11/101—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material responsive to weight of a container for liquid or other fluent material; responsive to level of liquid or other fluent material in a container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1042—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material provided with means for heating or cooling the liquid or other fluent material in the supplying means upstream of the applying apparatus
    • 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
    • B27G11/005—Glue guns, glue sprayers
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/001—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the liquid or other fluent material

Definitions

  • the invention relates to a system with an adhesive application device for an edge banding machine for applying molten adhesive to a narrow side of a plate-shaped workpiece moved in a feed direction at a feed speed and with a signal processing element.
  • An adhesive application device which has a melting chamber in which a melting insert for melting an adhesive which can be introduced into the melting chamber and a pressure piston which can be moved in the melting chamber for pressing the adhesive against the melting insert are arranged, and which has a feed unit for moving the pressure piston and a nozzle body for applying the molten adhesive to the narrow side of the workpiece, is used in an edge banding machine with which a glued edge, which is often also referred to as a "edge band", can be fed to a narrow side of the workpiece which runs parallel to the feed direction of the workpiece and glued to the workpiece.
  • the workpiece with the glued edge is then usually fed to one or more post-processing units, for example at least one sawing unit and/or at least one milling unit, in order to achieve a continuous transition between the top and bottom sides of the workpiece and the glued edge.
  • one or more post-processing units for example at least one sawing unit and/or at least one milling unit
  • Chipboard or solid wood panels can be used as workpieces.
  • an adhesive application device of the type mentioned above is used. It comprises a melting chamber in which a melting insert is arranged.
  • the adhesive can be introduced into the melting chamber in the form of an adhesive cartridge, for example.
  • a pressure piston is mounted in the melting chamber so that it can move, with the help of which the adhesive can be pressed against the melting insert.
  • the melted adhesive can then be fed to a nozzle body. with the help of which the molten adhesive can be applied to the narrow side of the workpiece.
  • An adhesive application device of the type mentioned above is known from DE 31 09 369 C2 It has at least one limit switch, with the help of which a control signal can be provided when the pressure piston reaches a front end position in which it is at a minimum distance from the melt insert. In this end position of the pressure piston, the melting chamber has reached its minimum fill level and new adhesive, for example a new adhesive cartridge, must be introduced into the melting chamber.
  • a device for determining the fill level of molten adhesive in a container is known.
  • the device can be used in an adhesive application device for an edge banding machine for applying molten adhesive to a narrow side of a plate-shaped workpiece moved in a feed direction at a feed speed.
  • the device for determining the fill level of molten adhesive in a container has a melting chamber in which a melting insert and a movable pressure piston are arranged. With the help of the melting insert, an adhesive introduced into the melting chamber can be melted and the pressure piston can be used to press the adhesive against the melting insert.
  • the known device also has a feed unit for moving the pressure piston and a nozzle body for applying the molten adhesive.
  • the device has a signal processing element and a sensor device which can be detachably connected to the signal processing element and which is set up to continuously provide a sensor signal corresponding to the current fill level of the melting chamber after the melting chamber has been filled.
  • the object of the present invention is to further develop a system of the generic type in such a way that it is easier to handle.
  • a sensor signal can be continuously provided when applying molten adhesive to the narrow side of the workpiece, which corresponds to the current fill level of the melting chamber.
  • the sensor signal allows the user to see how the fill level changes, so that he is informed of the decreasing fill level before the minimum fill level is reached. The user can therefore not only be informed that the minimum fill level has been reached, but also the current fill level of the melting chamber. This makes handling the adhesive application device easier.
  • the signal processing element is configured to determine the remaining adhesive application length until a minimum filling level of the melting chamber is reached on the basis of the temporal change in the filling level of the melting chamber, taking into account the feed rate of the workpiece.
  • the remaining adhesive application length is the length of the narrow side of the workpiece that can still be coated with molten adhesive with the current filling level of the melting chamber and constant application conditions, in particular with a constant feed rate and constant width of the narrow side.
  • the remaining adhesive application length can be determined by the signal processing element based on the adhesive consumption per feed length of the workpiece with the current filling.
  • the sensor device continuously provides the signal processing element with a signal corresponding to the current filling level of the melting chamber, so that the signal processing element can determine the temporal change in the filling level and link it to the feed rate.
  • the sensor signal provided by the sensor device corresponds to the current position of the pressure piston.
  • the pressure piston After filling the melting chamber, for example after inserting a new adhesive cartridge, the pressure piston initially assumes a rear end position in which it is at a maximum distance from the melting insert.
  • the pressure piston moves in the direction of the melting insert so that its distance from the melting insert and thus also the fill level of the melting chamber continuously decrease.
  • the current position of the pressure piston therefore corresponds to the current fill level of the melting chamber.
  • the position of the pressure piston can be detected directly with the aid of the sensor device.
  • the adhesive application device has a feed unit for moving the pressure piston in the melting chamber.
  • This can have an electric drive, for example.
  • the feed unit has a hydraulic or pneumatic piston-cylinder unit with an actuating piston which is connected to the pressure piston and whose current position can be continuously detected by means of the sensor device.
  • the filling level of the melting chamber based on the position of the actuating piston, which moves the pressure piston in the melting chamber.
  • the actuating piston is preferably rigidly connected to the pressure piston.
  • the actuating piston is rigidly connected to the pressure piston via a piston rod.
  • the sensor device has at least one sensor element which is arranged on the outside of a housing of the adhesive application device.
  • the at least one sensor element can be arranged, for example, on the outside of the melting chamber.
  • the at least one sensor element is arranged on the outside of a cylinder in which the actuating piston connected to the pressure piston is held so as to be movable.
  • the signal processing element has a display device on which the remaining adhesive application length can be shown to the user.
  • the current length-specific adhesive consumption can also be displayed on the display device, i.e. the amount of adhesive that is consumed during the current application of adhesive to the narrow side of the workpiece per feed length.
  • the signal processing element can determine the length-specific adhesive consumption on the basis of the temporal change in the filling level of the melting chamber and the feed speed of the workpiece.
  • the signal processing element can determine the temporal change in the filling level of the melting chamber from the continuously provided Determine the sensor signal that corresponds to the current filling level of the melting chamber.
  • the drawing schematically shows an advantageous embodiment of a system according to the invention with an adhesive application device 10 and a signal processing element 60, which is used in an edge banding machine.
  • the edge banding machine is not shown in the drawing, since it is known per se to the person skilled in the art.
  • the edge banding machine has a machine frame on which various processing units, for example at least one sawing unit and/or at least one milling unit, are held.
  • various processing units for example at least one sawing unit and/or at least one milling unit
  • transport elements for example with the help of transport rollers or transport chains, a plate-shaped workpiece 12 can be moved in a feed direction 14 at a feed speed.
  • the workpiece 12 has a front side 16 and a back side 18, which are aligned perpendicular to the feed direction 14.
  • the workpiece 12 has a first narrow side 20 and a second narrow side 22, which are aligned parallel to the feed direction 14.
  • the two narrow sides 20, 22 extend over the entire length of the workpiece 12.
  • the adhesive application device 10 has transport rollers 24, 26, with the aid of which the adhesive application device 10 can be mounted on the machine frame of the edge banding machine in a transport direction 28 aligned perpendicular to the feed direction 14 in a movable and replaceable manner.
  • the adhesive application device 10 For applying molten adhesive to the first narrow side 20, the adhesive application device 10 has a nozzle body 30.
  • Nozzle bodies are known to the expert, for example, from EP 2 308 605 A1 known.
  • the nozzle body 30 is connected to a melting chamber 34 of the adhesive application device 10 via a connecting line 32.
  • An electrically heatable melting insert 36 is arranged in the melting chamber 34, with the aid of which an adhesive can be melted.
  • the adhesive can be introduced into the melting chamber 34 from a storage container 40, for example in the form of an adhesive cartridge 38.
  • the storage container 40 is arranged on an upper side of the melting chamber 34.
  • a pressure piston 42 is arranged in the melting chamber 34, with the aid of which the adhesive cartridge 38 can be pressed against the melting chamber 34 and the melted adhesive can be fed to the nozzle body 30.
  • the pressure piston 32 is arranged between a Figure 1 shown rear end position and a front end position not shown in the drawing.
  • the pressure piston 42 In the rear end position, the pressure piston 42 assumes a position at the maximum distance from the melting insert 36, so that an adhesive cartridge 38 can be introduced into the melting chamber 34 without being hindered by the pressure piston 42. In the front end position, the pressure piston 42 assumes a minimum distance from the melting insert 36.
  • the adhesive application device 10 has a feed unit 44, which in the embodiment shown is designed as a piston-cylinder unit 46.
  • the piston-cylinder unit has a cylinder 48 in which an actuating piston 50 can be moved linearly.
  • the actuating piston 50 can be acted upon in the cylinder 48 by a medium under pressure, for example with a pressurized hydraulic fluid or, for example, with compressed air.
  • the actuating piston 50 is rigidly connected to the pressure piston 42 via a piston rod 52, so that a movement of the actuating piston 50 is transmitted to the pressure piston 42. If the pressure piston 42 assumes its rear end position, the actuating piston 50 also assumes a rear end position. and the pressure piston 42 assumes its front end position, the actuating piston 50 also assumes its front end position.
  • the current position of the actuating piston 50 in the cylinder 48 is detected contactlessly by a sensor device 54 using a capacitive or inductive sensor element 56.
  • the sensor element 56 is held stationary on the outside of the cylinder 48.
  • the sensor device 54 can be detachably connected to the signal processing element 60 via a signal line 58, so that the signal processing element 60 can be continuously provided with a sensor signal that corresponds to the current position of the actuating piston 50 and thus also the current position of the pressure piston 42.
  • the current position of the pressure piston 42 forms a measure of the fill level of the melting chamber 34. If the pressure piston 42 assumes its rear end position, the fill level of the melting chamber 34 is at its maximum after an adhesive cartridge 38 has been inserted.
  • the pressure piston 42 As the amount of molten adhesive is increasingly applied via the nozzle body 30 onto the first narrow side 20 of the workpiece 12, the pressure piston 42 increasingly approaches the melting insert 36 and the filling level of the melting chamber 34 decreases. In the front end position of the pressure piston 42, the filling level is minimal.
  • the continuous change in the position of the pressure piston 42 forms a measure of the adhesive consumption.
  • the signal processing element 60 calculates the length-specific adhesive consumption, i.e. the consumption of adhesive per feed length of the workpiece 12.
  • the length-specific adhesive consumption can be linked by the signal processing element 60 to the current fill level of the melting chamber 34 and the remaining adhesive application length can thereby be determined, i.e. the length of the first narrow side 20, which can still be coated with adhesive using the remaining amount of adhesive in the melting chamber 34.
  • the remaining adhesive application length can be made available to the user in the same way as the length-specific Glue consumption and the current fill level are visually displayed on the display device 62.
  • the position of the actuating piston 50 and thus also of the pressing piston 42 is determined continuously by the sensor device 54, i.e. the signal processing element 60 continuously receives a sensor signal corresponding to the current position of the pressing piston 42 and thus also the current fill level of the melting chamber 34, so that the user can be shown the currently remaining adhesive application length on the display device 62 at any time during the application of molten adhesive.

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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)

Claims (9)

  1. Système comprenant un dispositif d'application de colle pour une plaqueuse de chants permettant d'appliquer de la colle liquide fondue sur un chant (20) d'une pièce d'œuvre (12) qui est en forme de plaque et est déplacée dans une direction d'avancée (14) à une vitesse d'avancée, et comprenant un élément de traitement de signal (60), dans lequel le dispositif d'application de colle (10) présente une chambre de fonte (34) au sein de laquelle sont agencés un insert de fonte (36) permettant de faire fondre une colle pouvant être introduite dans la chambre de fonte (34) et un piston de pression (42) qui peut être déplacé dans la chambre de fonte (34) et permet de presser la colle contre l'insert de fonte (36), et dans lequel le dispositif d'application de colle (10) comprend un groupe d'avancée (44) permettant de déplacer le piston de pression (42) et un corps de buse (30) permettant d'appliquer la colle fondue sur le chant (20) de la pièce d'œuvre (12), et dans lequel le dispositif d'application de colle (10) présente un dispositif de détection (54) conçu pour fournir en continu un signal de capteur correspondant au niveau de remplissage actuel de la chambre de fonte (34) après le remplissage de la chambre de fonte (34), dans lequel le dispositif de détection (54) peut être relié de manière amovible à l'élément de traitement de signal (60), caractérisé en ce que l'élément de traitement de signal (60) est configuré pour, en fonction de la variation dans le temps du niveau de remplissage de la chambre de fonte (34) avec prise en compte de la vitesse d'avancée de la pièce d'œuvre (12), déterminer la longueur d'application de colle restante avant d'atteindre un niveau de remplissage minimum de la chambre de fonte (34).
  2. Système selon la revendication 1, caractérisé en ce que le signal de capteur correspond à la position actuelle du piston de pression (42).
  3. Système selon la revendication 1 ou 2, caractérisé en ce que le groupe d'avancée (44) présente un groupe piston-cylindre hydraulique ou pneumatique comprenant un piston de réglage (50) qui est relié au piston de pression (42) et dont la position actuelle peut être détectée en continu au moyen du dispositif de détection (54).
  4. Système selon la revendication 2 ou 3, caractérisé en ce que la position actuelle du piston de pression (42) ou du piston de réglage (50) peut être détectée sans contact.
  5. Système selon la revendication 4, caractérisé en ce que la position actuelle du piston de pression (42) ou du piston de réglage (50) peut être détectée de manière capacitive ou inductive.
  6. Système selon la revendication 4 ou 5, caractérisé en ce que le dispositif de détection (54) présente au moins un élément formant capteur (56) qui est agencé à l'extérieur d'un carter du dispositif d'application de colle (10).
  7. Système selon la revendication 6, caractérisé en ce que le au moins un élément formant capteur (56) est agencé à l'extérieur d'un groupe piston-cylindre (46).
  8. Système selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de traitement de signal (60) présente un dispositif d'affichage (62) sur lequel la longueur d'application de colle restante peut être indiquée à l'utilisateur.
  9. Système selon la revendication 8, caractérisé en ce que la consommation de colle rapportée à la longueur et/ou le niveau de remplissage de la chambre de fonte (34) peu(ven)t être indiqué(s) sur le dispositif d'affichage (62).
EP18172294.3A 2017-05-19 2018-05-15 Dispositif d'application de colle Active EP3403728B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017111013.5A DE102017111013A1 (de) 2017-05-19 2017-05-19 Kleberauftragsvorrichtung

Publications (2)

Publication Number Publication Date
EP3403728A1 EP3403728A1 (fr) 2018-11-21
EP3403728B1 true EP3403728B1 (fr) 2024-10-16

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ID=62186245

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18172294.3A Active EP3403728B1 (fr) 2017-05-19 2018-05-15 Dispositif d'application de colle

Country Status (2)

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EP (1) EP3403728B1 (fr)
DE (1) DE102017111013A1 (fr)

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CN109731732B (zh) * 2019-01-16 2020-12-08 嘉兴华竹电子有限公司 一种电子元器件生产用热熔胶高效点胶机
CN110090783B (zh) * 2019-05-20 2021-03-05 罗阿丽 一种环保型建筑模板封边机
CN110712266A (zh) * 2019-10-18 2020-01-21 广州智法装饰材料有限公司 一种用于制作无缝板材的封边机
CN110756385B (zh) * 2019-11-13 2021-04-20 济南星辉数控机械科技有限公司 一种铝合金蜂窝板自动化封边机
CN112916308A (zh) * 2019-12-05 2021-06-08 深圳市腾盛精密装备股份有限公司 一种自动点胶装置
CN111570209B (zh) * 2020-05-29 2021-09-14 李燕秋 一种方形玻璃窗辅助涂胶设备
CN112277103A (zh) * 2020-10-07 2021-01-29 德华兔宝宝装饰新材股份有限公司 一种提高板材树脂使用率的等离子处理方法及其装置
CN113457932B (zh) * 2021-05-19 2022-12-09 兰溪泛翌精细陶瓷有限公司 一种用于超精密半导体陶瓷部件调压紧固加工装置
EP4140599B1 (fr) 2021-08-25 2025-06-25 HOLZ-HER GmbH Dispositif de fusion d'adhésif pour une machine à plaquer des chants
EP4140598B1 (fr) 2021-08-25 2025-06-18 HOLZ-HER GmbH Dispositif de fusion d'adhésif pour une machine à plaquer des chants

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP1243345A2 (fr) * 2001-03-19 2002-09-25 PAUL OTT GmbH Machine d'encollage de chants

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DE3109369C2 (de) 1981-03-12 1984-01-12 Reich Spezialmaschinen GmbH, 7440 Nürtingen Schmelz- und Auftragsvorrichtung für Schmelzkleber
DE8812638U1 (de) * 1988-10-07 1990-02-01 Claassen, Henning J., 2120 Lüneburg Vorrichtung zum Aufschmelzen von hochpolymeren, thermoplastischen Werkstoffen, insbesondere Klebstoffen
JP2503169B2 (ja) * 1992-09-25 1996-06-05 株式会社テンリュウテクニックス ディスペンサ
DE60227828D1 (de) * 2001-10-29 2008-09-04 Nordson Corp E von schmelzkleber
ES2388480T3 (es) 2009-10-07 2012-10-15 Holz-Her Gmbh Dispositivo para aplicación de cola
DE102011014888A1 (de) * 2011-03-23 2012-09-27 Homag Holzbearbeitungssysteme Gmbh Vorrichtung und Verfahren zur Steuerung/Regelung eines Füllstandsniveaus
DE102013015313A1 (de) * 2013-09-16 2015-03-19 Dürr Systems GmbH Applikationsanlage und entsprechendes Applikationsverfahren
EP3108968A1 (fr) * 2015-06-25 2016-12-28 Robatech AG Dispositif de determination du niveau de colle fondue dans un recipient

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1243345A2 (fr) * 2001-03-19 2002-09-25 PAUL OTT GmbH Machine d'encollage de chants

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Publication number Publication date
DE102017111013A1 (de) 2018-11-22
EP3403728A1 (fr) 2018-11-21

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