EP4274718B1 - Dispositif de traitement des bords et procédé de traitement des bords - Google Patents

Dispositif de traitement des bords et procédé de traitement des bords Download PDF

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Publication number
EP4274718B1
EP4274718B1 EP23700625.9A EP23700625A EP4274718B1 EP 4274718 B1 EP4274718 B1 EP 4274718B1 EP 23700625 A EP23700625 A EP 23700625A EP 4274718 B1 EP4274718 B1 EP 4274718B1
Authority
EP
European Patent Office
Prior art keywords
roller
edge processing
polishing
processing device
workpiece
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
EP23700625.9A
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German (de)
English (en)
Other versions
EP4274718A1 (fr
EP4274718C0 (fr
Inventor
Thomas Selke
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
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Publication date
Application filed by IMA Schelling Deutschland GmbH filed Critical IMA Schelling Deutschland GmbH
Publication of EP4274718A1 publication Critical patent/EP4274718A1/fr
Application granted granted Critical
Publication of EP4274718C0 publication Critical patent/EP4274718C0/fr
Publication of EP4274718B1 publication Critical patent/EP4274718B1/fr
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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
    • B27D5/006—Trimming, chamfering or bevelling edgings, e.g. lists

Definitions

  • the invention relates to an edge processing device according to the preamble of claim 1 and an edge processing method.
  • Such a device is known from the document EN 20 2019 101917 U1 known.
  • edge strips made of plastic or other materials are often attached to the narrow side of a corresponding plate-shaped workpiece.
  • a typical structure of an edge processing device in the area of post-processing is shown in Fig.1 X indicates the machining direction in which the workpiece moves relative to the machining unit.
  • Z indicates the vertical direction, vertical to the floor or perpendicular to the broad side of the workpiece 5.
  • Fig.2 which is a section along the line BB through the device 1 of Fig.1 shows - drawing units 3 are often used which have scrapers 31, 32 which serve to remove excess material from the already applied edge strip 7 while forming a scraper 8.
  • Such a device with scraper is also known, for example, from DE 42 17 589 A1 , EP 1 834 744 A2 , EN 10 2015 204 326 A1 , EN 20 2019 101 917 U1 or EN 10 2015 218 879 A1 known.
  • EN 10 2018 100 934 A1 For example, it is known to crush the chip immediately after the drawing process, so that it is less likely to get caught in the machine.
  • EN 20 2019 101 455 U1 discloses a device for removing long chips. This device has a suction nozzle which is part of a cutting device. The long chips are drawn into the cutting device by means of the suction device and cut off there.
  • EN 10 2008 048 295 A1 An arrangement for removing long chips is known which contains a blowing device which blows the long chips produced by a scraper and then cuts them off using a separating device. The targeted blowing is intended to prevent uncontrolled separation.
  • the workpiece 5 is usually polished using a polishing unit 2 that has one or more polishing disks 21, 22, in particular so-called buffing disks. Since the stripping unit 3 and the polishing unit 2 are arranged one behind the other in the processing direction X of the workpiece 5, the free end of the drawing chip 8 that is created during stripping hangs out over the rear end of the workpiece 5, so that the drawing chip 8 hangs uncontrollably on the edge strip 7. It can happen that the drawing chip 8 gets caught in the device 1, in particular such drawing chips 8 can wrap around the rotation axes of the polishing disks 21, 22. This can block the rotation axis of the polishing disks 21, 22, for example. Of course, drawing chips 8 can also get caught in other parts of the edge processing device 1 and lead to damage or blockages.
  • the object of the present invention is therefore to provide an edge processing device and an edge processing method which help to avoid these disadvantages of uncontrolled drawing chips.
  • the edge processing device is used for edging the narrow sides of plate-shaped workpieces made of wood or wood substitutes with an edge strip.
  • Edge strips can be both individual strips of an edge material and edge bands unrolled from a roll. These are usually made of plastic, but other workpieces are of course also possible.
  • the device according to the invention has a polishing unit with at least one polishing disk and a scraper device arranged upstream of the polishing unit in a processing direction with at least one scraper for machining the edge strip applied to the workpiece. When the edge strip is applied, a scraper is produced by scraping it off with the scraper.
  • the invention provides that the edge processing device has at least one roller arranged downstream of the scraper unit in the processing direction.
  • This roller is According to the invention, the polishing disc is arranged so close to the polishing disc that a frictional connection is exerted on a drawing chip generated by the scraper device that reaches the area between the at least one polishing disc and the roller. The combination of polishing disc and roller therefore serves to catch the freely hanging drawing chip and clamp it between them.
  • This clamping effect ensures that the drawing chip is safely guided between the roller and the polishing disc on the one hand and is removed in a controlled manner from the applied edge strip as the workpiece continues to move in the direction of movement as a result of the clamping force.
  • the controlled removal of the drawing chip means that impairments of the type described above are no longer possible.
  • the roller can preferably be arranged directly on the polishing unit. It is also possible to provide the roller as a component that is mounted separately from the polishing unit. In the latter case in particular, it is easy to retrofit a roller according to the invention, so that existing systems can be specifically improved by these measures.
  • the roller is mounted so that it can rotate about an axis of rotation that is inclined to the axis of rotation of the polishing disc.
  • the axis of rotation of the polishing disc and the axis of rotation of the roller can also be arranged not parallel to one another.
  • the roller according to the invention is arranged in such a way that its front side in the axial direction is opposite the edge strip applied to the workpiece on its decorative side.
  • the axis of rotation of the roller is arranged in a vertical direction at the level of a workpiece transport support.
  • the roller can be designed to be relatively small in terms of its diameter; in principle, for example, it is sufficient if the roller has a diameter that corresponds approximately to the height of the plate-shaped workpiece being fed in, measured in the vertical direction. Due to the fact that the polishing disc generally has a relatively flexible surface, there is still sufficient frictional connection between the polishing disc and the outer surface of the roller to pick up, hold and tear off any drawing chips that get between the polishing disc and the roller.
  • the roller can be driven, but this is not absolutely necessary, as the polishing wheel is driven. However, the forces acting on the chip can be adjusted even better using a driven roller, as a certain rotation speed and, if necessary, direction of rotation can be specified.
  • roller is supported, in particular on a lever arm, in such a way that it is pressed against the at least one polishing disk.
  • Such pressing can possibly be accomplished via a spring and another pre-tensioning mechanism.
  • a pre-tensioning mechanism can also be designed to be adjustable, so that the device can be individually adjusted to the Edge material, the thickness of the resulting drawing chips or the like can be adjusted.
  • a workpiece as described above is connected to an edge strip on a narrow side by means of an edge processing device as described above lying on a workpiece transport support.
  • the edge strip is pulled off in one area by means of the at least one scraper blade, so that a drawing chip is created. According to the invention, this is caught between the roller and the at least one polishing slide and separated from the rest of the edge strip as a result of the resulting frictional connection.
  • the scraper device 3 has at least one, preferably two scrapers 31, 32, which are attached to the workpiece 5 in the area of the edge strip 7. Due to the movement of the edge strip 7 or the workpiece 5 relative to the scraper 31, 32 in a processing direction X perpendicular to the vertical direction Z and transverse direction Y, the drawing chip 8 is created.
  • the workpiece 5, to which the edge strip 7 is attached lies on a workpiece transport support 6, in particular a chain conveyor, and is held in place by a top pressure device 4 during conveyance through the edge processing device 1, so that it cannot slip on the workpiece transport support 6.
  • the workpiece 5 reaches the polishing unit 2 during further transport in the direction of movement X through the edge processing device 1.
  • at least two polishing disks 21, 22 are components of the polishing unit 2.
  • These two polishing disks 21, 22 are arranged with their driven axes of rotation above or below the workpiece or the edge strip 7 when viewed in the vertical direction Z. Facing the decorative side of the edge strip 7 is a roller 9 which is mounted so as to be rotatable about an axis D.
  • This roller which is preferably conically tapered in the transverse direction Y (ie in the direction away from the edge strip 7), is located in the example shown with its axis of rotation D approximately at the height of the narrow side of the workpiece 5, here in the immediate vicinity the polishing disk 21, preferably between two polishing disks 21, 22, whose axes of rotation are preferably spaced apart from each other in the direction of movement X.
  • the configuration ensures that the drawing chip 8 gets into the area between the polishing disk 21 and the roller 9. This area or gap is preferably selected such that the drawing chip 8 is clamped between the roller 9 and the polishing disk 21 and thus held there.
  • the polishing disk 21, 22 can rotate in the same direction as or against the movement of the workpiece.
  • the speed of the polishing disk 21, 22 can be increased or reduced depending on the feed speed of the workpiece 5.
  • the speed of the polishing disk 21, 22 is increased when the feed speed of the workpiece 5 increases, and reduced accordingly when the feed speed of the workpiece 5 decreases.
  • the removal of the drawing chip 8 thus takes place in the area of the roller 9 or polishing wheel 21, so that a correspondingly removed drawing chip 8 can be removed as rejects at exactly this point of the edge processing device 1 according to the invention in a controlled manner from the edge processing device 1, without there being any risk that such chips get caught in other parts of the device.
  • a suction device can suck up the separated drawing chips.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (6)

  1. Appareil de travail de bordure (1) destiné à border les côtés étroits de pièces en forme de plaque (5) constituées de bois ou de substitution de bois avec une bande de bordure (7), comportant une unité de polissage (2), ayant au moins un disque de polissage (21, 22) et un dispositif de raclage (3) qui est disposé en amont de l'unité de polissage (2) dans une direction de travail (X) et avec au moins un racloir (31, 32) pour l'usinage de la bande de bordure (7) appliquée à la pièce (5),
    dans lequel l'appareil de travail de bordure (1) comprend au moins un rouleau (9), qui est disposé en aval de l'unité de raclage (3) dans la direction de travail (X) et est disposé de manière serrée contre le disque de polissage de sorte qu'une adhérence est exercée sur le copeau (8) qui a atteint la région entre l'au moins un disque de polissage (21, 22) et le rouleau (9) et est produit par l'unité de lame de racloir (3),
    caractérisé en ce
    que le rouleau (9) est logé, surtout sur un bras de levier, de manière à être pressé contre l'au moins un disque de polissage (21, 22).
  2. Appareil de travail de bordure (1) selon la revendication 1,
    caractérisé en ce
    que le rouleau (9) est agencé à l'unité de polissage (2).
  3. Appareil de travail de bordure (1) selon la revendication 1 ou 2,
    caractérisé en ce
    que le rouleau (9) est monté rotatif autour d'un axe de rotation (D) formant un angle avec l'axe de rotation du disque de polissage (21, 22)
  4. Appareil de travail de bordure (1) selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que l'axe de rotation (D) du rouleau (9) est disposé dans une direction verticale (Z) au niveau d'un support de transport de pièces (6).
  5. Appareil de travail de bordure (1) selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que le rouleau (9) est entraîné.
  6. Procédé de travail de bordure, dans lequel une pièce (5), au moyen d'un appareil de travail de bordure (1) selon l'une quelconque des revendications, est reliée, allongée sur un support de transport de pièces (6), sur un côté étroit avec une bande de bordure (7), dans lequel, au moyen de l'au moins un racloir (31, 32), la bande de bordure (7) est enlevée dans une zone de sorte que un coupeau (8) est produit, dans lequel le copeau (8) est saisie entre le rouleau (9) et l'au moins un disque de polissage (21, 22) et est séparées du reste de la bande de bordure (7) à la suite de l'adhérence qui en résulte.
EP23700625.9A 2022-01-11 2023-01-09 Dispositif de traitement des bords et procédé de traitement des bords Active EP4274718B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022100535.6A DE102022100535A1 (de) 2022-01-11 2022-01-11 Kantenbearbeitungsvorrichtung sowie Kantenbearbeitungsverfahren
PCT/EP2023/050326 WO2023135081A1 (fr) 2022-01-11 2023-01-09 Appareil de travail de bordure et procédé de travail de bordure

Publications (3)

Publication Number Publication Date
EP4274718A1 EP4274718A1 (fr) 2023-11-15
EP4274718C0 EP4274718C0 (fr) 2024-06-19
EP4274718B1 true EP4274718B1 (fr) 2024-06-19

Family

ID=84982233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23700625.9A Active EP4274718B1 (fr) 2022-01-11 2023-01-09 Dispositif de traitement des bords et procédé de traitement des bords

Country Status (3)

Country Link
EP (1) EP4274718B1 (fr)
DE (1) DE102022100535A1 (fr)
WO (1) WO2023135081A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4217589C2 (de) 1992-05-27 1994-08-25 Torwegge Holztech Gmbh & Co Vorrichtung zum Schneiden eines Spans
ITBO20060188A1 (it) 2006-03-16 2007-09-17 Biesse Spa Gruppo refilatore-raschiatore per la finitura di componenti di legno o simboli
DE102008048295B4 (de) 2008-09-22 2011-09-15 Rauch Möbelwerke GmbH Anordnung und Verfahren zum Beseitigen eines Langspans von einem Werkstück
DE102015204326A1 (de) 2014-03-11 2015-09-17 Biesse S.P.A. Ziehklingenaggregat für die Bearbeitung von Paneelen aus Holz oder Ähnlichem
DE102015218879A1 (de) 2015-09-30 2017-03-30 Homag Gmbh Bearbeitungsvorrichtung mit einer Abzieheinrichtung und einer Abtrenneinrichtung zum Bearbeiten von Werkstücken sowie Verfahren zum Abziehen und Abtrennen beim Bearbeiten eines Werkstücks
DE102015121284A1 (de) * 2015-12-07 2017-06-08 Lcm Gmbh Vorrichtung zur Nachbearbeitung mindestens eines plattenförmigen Werkstücks
DE102018100934A1 (de) 2018-01-17 2019-07-18 Homag Gmbh Bearbeitungsvorrichtung
DE202019101455U1 (de) 2019-03-14 2019-03-19 Bodo Mündkemüller Vorrichtung zum Entfernen eines Langspans
DE202019101917U1 (de) * 2019-04-03 2019-04-10 Bernd Riepe Einrichtung zur Kantenbearbeitung einer Platte
DE102020122442A1 (de) 2020-08-27 2022-03-03 Riepe Gmbh & Co. Kg Verfahren zum Bearbeiten eines Kantenbandes sowie Vorrichtung zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
EP4274718A1 (fr) 2023-11-15
EP4274718C0 (fr) 2024-06-19
DE102022100535A1 (de) 2023-07-13
WO2023135081A1 (fr) 2023-07-20

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