EP1764198A1 - Procédé et dispositif pour l'usinage de pièces en forme de plaque - Google Patents

Procédé et dispositif pour l'usinage de pièces en forme de plaque Download PDF

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Publication number
EP1764198A1
EP1764198A1 EP05020367A EP05020367A EP1764198A1 EP 1764198 A1 EP1764198 A1 EP 1764198A1 EP 05020367 A EP05020367 A EP 05020367A EP 05020367 A EP05020367 A EP 05020367A EP 1764198 A1 EP1764198 A1 EP 1764198A1
Authority
EP
European Patent Office
Prior art keywords
groove
plate
shaped workpieces
abrasive
cover layer
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.)
Granted
Application number
EP05020367A
Other languages
German (de)
English (en)
Other versions
EP1764198B1 (fr
Inventor
Otto Katz
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.)
Ledermann GmbH and Co KG
Original Assignee
Ledermann GmbH and Co KG
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
Priority to PL05020367T priority Critical patent/PL1764198T3/pl
Priority to EP05020367A priority patent/EP1764198B1/fr
Priority to ES05020367T priority patent/ES2300914T3/es
Priority to DE502005003116T priority patent/DE502005003116D1/de
Priority to AT05020367T priority patent/ATE388001T1/de
Application filed by Ledermann GmbH and Co KG filed Critical Ledermann GmbH and Co KG
Priority to DK05020367T priority patent/DK1764198T3/da
Priority to PCT/EP2006/009025 priority patent/WO2007033799A1/fr
Publication of EP1764198A1 publication Critical patent/EP1764198A1/fr
Application granted granted Critical
Publication of EP1764198B1 publication Critical patent/EP1764198B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
    • B27C5/006—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor with non-rotating tools
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F1/00—Dovetailed work; Tenons; Making tongues or grooves; Groove- and- tongue jointed work; Finger- joints
    • B27F1/02—Making tongues or grooves, of indefinite length

Definitions

  • the present invention relates to a method and an apparatus for processing plate-shaped workpieces in the region of an abrasive cover layer of the plate-shaped workpieces.
  • Such plates consist of a carrier material, for example of medium density fibreboard (MDF), high density fiberboard (HDF), chipboard o. The like., which is provided with a cover layer in the form of a laminate layer, a thin-layer veneer, a plastic layer or a thicker lacquer layer.
  • MDF medium density fibreboard
  • HDF high density fiberboard
  • cover layer in the form of a laminate layer, a thin-layer veneer, a plastic layer or a thicker lacquer layer.
  • Plates with a laminate layer of this type are used, for example, as floor panels. These panels are laterally grooved and feathered, this machining operation typically being carried out on woodworking machines in the run at a high feed speed currently in the range of 160 to 200 m / min.
  • the method disclosed therein processes plates which in addition to a core have a cover layer of a design layer, an intermediate layer and a protective top layer.
  • the protective top layer has primarily the task of minimizing abrasion, for example, when the workpieces are used as floor panels.
  • a disadvantage of these solutions is that the material present in the region of the upper layer is completely machined and furthermore a correspondingly high level of wear occurs at the tool cutting edges. Furthermore, during the machining of the abrasive covering layer, a fine-grained granular jet is produced, which due to its diffuse spreading can only be sucked off insufficiently.
  • the invention is based on the idea to minimize machining of the abrasive cover layer of the plate-shaped workpieces as much as possible.
  • the abrasive cover layer is not milled off, but is predominantly removed.
  • at least one groove is first produced in each of the plate-shaped workpieces in the area of the abrasive cover layer, in order subsequently to remove a respective surface section of the plate-shaped workpieces in the area of the abrasive cover layer, the stripping being carried out in such a way that the drawn-off surface section adjoins the at least one generated groove adjacent.
  • the at least one groove is produced with a depth which is greater than or equal to the thickness of the abrasive covering layer.
  • a particularly preferred apparatus for carrying out the method according to the invention is defined in claim 4. This allows a simple construction to achieve the advantages discussed above.
  • the groove generating device of the device according to the invention in the present invention can be equipped in many ways, is provided according to a development of the present invention that the groove generating device works by cutting and preferably has a rotationally driven grooving tool.
  • a cutting operation is still carried out, but limited to a very limited range, so that the chips produced in an economically and technically meaningful way by a suitable suction device o. The like. Can be included without causing major damage.
  • the use of a rotationally driven groove tool makes it possible to achieve a precise and precisely defined edge on the machined workpiece, which is required in particular in the area of floor panels.
  • the grooving tool which may, for example, be a rotating saw blade, according to a development of the present invention has on its outer circumference a plurality of conically shaped teeth.
  • the conical formation of the teeth reduces the risk of edge breakage in the subsequent machining of the workpiece, which could arise due to the inhomogeneity of the plate-shaped workpieces.
  • cone angles in the range of 30 ° to 60 °, in particular in the range of 40 ° to 50 ° have proven to be particularly advantageous.
  • the stripping device can also be configured in many ways in the context of the present invention. According to one embodiment of the present invention, however, it is preferred that the stripper has at least one scraper blade. With a scraper can be realized in a particularly simple construction, a clean and continuous removal of the surface portion. It is particularly preferred that the scraper blade is stationary, so that the processing device can work smoothly in continuous operation and the alignment of the scraper can be easily adjusted.
  • the stripping device has at least one sliding shoe for supporting the plate-shaped workpieces to be processed.
  • the position of the at least one sliding shoe is adjustable with respect to the at least one scraper blade.
  • the design and arrangement of the at least one scraper blade can be defined inter alia by the peel angle ⁇ , the clearance angle ⁇ and the angle of attack ⁇ . It has been shown that in the processing of plate-shaped workpieces made of wood, wood materials u. Like. A peel angle ⁇ in the range of 45 ° to 65 °, a free-cutting angle ⁇ in the range of 2 ° to 5 ° and an angle of attack ⁇ in the range of -20 ° to + 20 ° ensure trouble-free operation and a clean work result.
  • a guide device in particular a guide bar
  • the plate-shaped workpieces are always in a defined position during their passage, so that in the processing of the plate-shaped workpieces the desired precision can be achieved.
  • the guide means contributes to the fact that the plate-shaped workpieces are not slipped, for example, when hitting the at least one scraper, but stably continue their passage through the device.
  • FIG. 1 A preferred embodiment of a processing apparatus 1 according to the present invention is shown schematically in Fig. 1 in a partial perspective view.
  • the device shown in Fig. 1 is used to edit plate-shaped workpieces in the range of an abrasive cover layer, such as floor panels.
  • Such workpieces are usually made of wood, wood materials (such as MDF or HDF) or the like and also have an abrasive cover layer containing hard particles, which consist for example of alumina.
  • FIG. 1 The structure of the processing apparatus 1 shown in FIG. 1 is shown in more detail in FIGS. 2 to 4 in a side view and two sectional views, respectively.
  • the processing device 1 initially has a groove generating device 14 for producing at least one groove 17 in the plate-shaped workpieces 4 in the region of the abrasive cover layer 5.
  • the groove generating device 14 has a groove tool 16 in the form of such said Ritzsägeblatts, which is driven in rotation by a motor unspecified.
  • a preferred embodiment of the Ritzsägeblatts 16 is shown in Fig. 5 in a side view and in a sectional view shown.
  • the groove generating device 14 is designed such that the scoring saw blade 16 can be adjusted with respect to the workpiece to be machined both in the workpiece conveying direction and perpendicular thereto. As a result, on the one hand, it is achieved that with the groove generating device 14, a groove 17 can be produced in the respective plate-shaped workpiece 4, the depth of which is adjustable. Furthermore, premature wear of the scoring saw blade 16 in the area of the abrasive covering layer 5 of the respective plate-shaped workpieces 4 can be counteracted by adjusting the groove generating device.
  • the processing apparatus 1 shown in Figs. 1 to 4 further comprises a stripper 3 for peeling off a surface portion 19 of the plate-shaped workpieces in the region of the abrasive cover layer 5 and a conveyer (not shown in the figures) for conveying the plate-shaped workpieces 4 in a conveyance direction in Fig. 2 is designated by X.
  • the conveyor may be a conveyor belt or the like in a known manner.
  • the stripper 3 of the groove generating device 14 is connected downstream in the conveying direction.
  • the peeling device 3 can be designed in the context of the present invention in many different ways, it has in the present Embodiment, a scraper blade (or a cutting blade) 9, which is arranged stationary.
  • the scraper blade has a cutting edge 10 facing the respective plate-shaped workpieces 4 and is attached to a tool carrier 8 which is adjustable with respect to the respective plate-shaped workpieces 4.
  • the position of the scraper blade 9 with respect to the plate-shaped workpieces to be machined can be adjusted so that the scraper blade 9 peels off an upper surface portion 19 adjacent to the at least one groove produced by the groove generating means 14 and its thickness greater than or equal to the thickness of the abrasive cover layer 5 is.
  • This depth is in common plate-shaped workpieces, for example in the range of 0.1 mm to 1.0 mm.
  • the scraper blade 9 engages in the groove 17 formed by the groove generating device 14 during the removal process, the scraper depth of the scraper blade 9 generally being slightly less than the depth of the groove 17.
  • the stripping device 3 further comprises a sliding shoe 6 with a sliding surface 11 facing the respective plate-shaped workpieces, the position of the sliding shoe 6 or the sliding surface 11 being adjustable with respect to the scraper blade 9.
  • a chip receiving space 13 Between the shoe 6 and the scraper blade 9 is a chip receiving space 13, in which the separated from the respective plate-shaped workpieces 4 surface portion 19 is received and removed as Span 12 and optionally can be removed by a suction or discharge device, not shown.
  • the distance between the scraper and the shoe should be at least 2 mm.
  • the processing apparatus 1 comprises an upper printing apparatus 2 which applies pressure to the respective plate-shaped workpieces 4 from above during their passage through the processing apparatus 1 to stabilize and guide them.
  • the top pressure device 2 is arranged at least in the region above the scraper blade 9, which contributes to the fact that the plate-shaped workpiece is further conveyed stable during the force attack by the scraper blade 9.
  • FIG. 1 A side view and a top view of a scraper blade used in the present embodiment are shown schematically in FIG. This figure illustrates in particular the clearance angle indicated by ⁇ , the peeling angle designated by ⁇ and the angle of attack of the scraper blade 9.
  • the scraper blade 9 has a peeling angle ⁇ of approximately 60 °, a clearance angle ⁇ of approximately 3 up to 4 ° and an angle of attack ⁇ of about + 20 °.
  • the positive sign of the angle of attack ⁇ makes it clear that the scraper blade can also be turned on in the other direction (with a correspondingly negative angle of attack ⁇ ).
  • the operation of the processing device 1 according to the invention takes place, for example, as follows.
  • the plate-shaped workpieces 4 are conveyed on the conveyor not shown in the conveying direction X with the abrasive cover layer 5 turned down. In this case, they first pass through the groove generating device 14 and are provided there with a groove 17 in the region of the abrasive cover layer whose depth is greater than or equal to the thickness of the abrasive layer. Subsequently, the plate-shaped workpieces 4 - continuously or discontinuously - further promoted to the stripping device 3, where the respective surface portion 19, which is adjacent to the at least one groove 17 produced in the region of the abrasive cover layer 5 is withdrawn. In this case, the surface portion 19 is subtracted with a thickness which is greater than or equal to the thickness of abrasive topcoat is. In this case, a chip 12 is formed which can be received and removed in the region of the chip receiving space 13.
  • the plate-shaped workpieces are further promoted and can now be provided in a known manner, for example by means of one or more milling heads, with a desired profiling, such as a tongue and groove profiling or click profiling.
  • a desired profiling such as a tongue and groove profiling or click profiling.
  • a cutting of the abrasive cover layer 5 of the respective plate-shaped workpieces is minimized, since a large part of the abrasive cover layer 5 is removed by the stripping device 3, without this coming into contact with the abrasive cover layer 5.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Turning (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP05020367A 2005-09-19 2005-09-19 Procédé et dispositif pour l'usinage de pièces en forme de plaque Not-in-force EP1764198B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP05020367A EP1764198B1 (fr) 2005-09-19 2005-09-19 Procédé et dispositif pour l'usinage de pièces en forme de plaque
ES05020367T ES2300914T3 (es) 2005-09-19 2005-09-19 Procedimiento y dispositivo para mecanizar piezas de trabajo en forma de placa.
DE502005003116T DE502005003116D1 (de) 2005-09-19 2005-09-19 Verfahren und Vorrichtung zum Bearbeiten plattenförmiger Werkstücke
AT05020367T ATE388001T1 (de) 2005-09-19 2005-09-19 Verfahren und vorrichtung zum bearbeiten plattenförmiger werkstücke
PL05020367T PL1764198T3 (pl) 2005-09-19 2005-09-19 Sposób i urządzenie do obróbki płytowych przedmiotów obrabianych
DK05020367T DK1764198T3 (da) 2005-09-19 2005-09-19 Fremgangsmåde og indretning til bearbejdning af pladeformede emner
PCT/EP2006/009025 WO2007033799A1 (fr) 2005-09-19 2006-09-15 Procede et dispositif d'usinage de pieces en forme de plaques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05020367A EP1764198B1 (fr) 2005-09-19 2005-09-19 Procédé et dispositif pour l'usinage de pièces en forme de plaque

Publications (2)

Publication Number Publication Date
EP1764198A1 true EP1764198A1 (fr) 2007-03-21
EP1764198B1 EP1764198B1 (fr) 2008-03-05

Family

ID=35811746

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05020367A Not-in-force EP1764198B1 (fr) 2005-09-19 2005-09-19 Procédé et dispositif pour l'usinage de pièces en forme de plaque

Country Status (7)

Country Link
EP (1) EP1764198B1 (fr)
AT (1) ATE388001T1 (fr)
DE (1) DE502005003116D1 (fr)
DK (1) DK1764198T3 (fr)
ES (1) ES2300914T3 (fr)
PL (1) PL1764198T3 (fr)
WO (1) WO2007033799A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2933075A1 (fr) * 2014-04-15 2015-10-21 Homag Holzbearbeitungssysteme AG Outil de post-traitement
EP2993004A4 (fr) * 2013-05-02 2016-06-22 Katomokuzai Kogyo Co Ltd Dispositif d'ébavurage pour bois raboté, et dispositif de fabrication ainsi que de fabrication d'article revêtu
WO2020174358A1 (fr) * 2019-02-26 2020-09-03 Flooring Industries Limited, Sarl Dispositif de coupe pour une fraiseuse continue et procédé de fabrication de panneaux
EP2789434B1 (fr) * 2013-04-11 2021-06-16 IMA Schelling Deutschland GmbH procédé et dispositif d'usinage de pièces en forme de plaques

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596365A (en) * 1947-03-07 1952-05-13 James E Bresnahan Grooving attachment for resawing machines
DE2839096A1 (de) * 1977-09-26 1979-04-12 Lehbrink Gmbh & Co Kg W Vorrichtung zum abziehen von flexiblen folien von werkstuecken
DE29611587U1 (de) * 1996-07-03 1996-09-12 Ledermann Gmbh, 72160 Horb Vorrichtung zur Vorzerspanung der Kantenbereiche von fortlaufend bewegten Werkstücken
DE29707286U1 (de) * 1997-04-23 1997-08-14 Ledermann Gmbh, 72160 Horb Werkzeug zur Bearbeitung von fortlaufend bewegten Werkstücken
DE29710175U1 (de) * 1996-06-11 1997-08-14 Unilin Beheer B.V., Nieuwerkerk Fußbodenbelag, bestehend aus harten Fußbodenpaneelen
EP1048423A2 (fr) * 1999-04-29 2000-11-02 A. Costa Spa Procédé pour profiler de moulures pour parquet et dispositif d'équarrissage pour un tel procédé

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596365A (en) * 1947-03-07 1952-05-13 James E Bresnahan Grooving attachment for resawing machines
DE2839096A1 (de) * 1977-09-26 1979-04-12 Lehbrink Gmbh & Co Kg W Vorrichtung zum abziehen von flexiblen folien von werkstuecken
DE29710175U1 (de) * 1996-06-11 1997-08-14 Unilin Beheer B.V., Nieuwerkerk Fußbodenbelag, bestehend aus harten Fußbodenpaneelen
DE29611587U1 (de) * 1996-07-03 1996-09-12 Ledermann Gmbh, 72160 Horb Vorrichtung zur Vorzerspanung der Kantenbereiche von fortlaufend bewegten Werkstücken
DE29707286U1 (de) * 1997-04-23 1997-08-14 Ledermann Gmbh, 72160 Horb Werkzeug zur Bearbeitung von fortlaufend bewegten Werkstücken
EP1048423A2 (fr) * 1999-04-29 2000-11-02 A. Costa Spa Procédé pour profiler de moulures pour parquet et dispositif d'équarrissage pour un tel procédé

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2789434B1 (fr) * 2013-04-11 2021-06-16 IMA Schelling Deutschland GmbH procédé et dispositif d'usinage de pièces en forme de plaques
EP2993004A4 (fr) * 2013-05-02 2016-06-22 Katomokuzai Kogyo Co Ltd Dispositif d'ébavurage pour bois raboté, et dispositif de fabrication ainsi que de fabrication d'article revêtu
EP2933075A1 (fr) * 2014-04-15 2015-10-21 Homag Holzbearbeitungssysteme AG Outil de post-traitement
WO2020174358A1 (fr) * 2019-02-26 2020-09-03 Flooring Industries Limited, Sarl Dispositif de coupe pour une fraiseuse continue et procédé de fabrication de panneaux
BE1027083B1 (nl) * 2019-02-26 2020-09-24 Flooring Ind Ltd Sarl Glij- of drukschoen voor een doorloopfreesmachine en werkwijze voor het vervaardigen van panelen
BE1027029B1 (nl) * 2019-02-26 2020-11-20 Flooring Ind Ltd Sarl Snijinrichting voor een doorloopfreesmachine en werkwijze voor het vervaardigen van panelen
US11858165B2 (en) 2019-02-26 2024-01-02 Flooring Industries Limited, Sarl Cutting device for a continuous milling machine and method for the manufacture of panels

Also Published As

Publication number Publication date
PL1764198T3 (pl) 2008-07-31
ES2300914T3 (es) 2008-06-16
DE502005003116D1 (de) 2008-04-17
EP1764198B1 (fr) 2008-03-05
ATE388001T1 (de) 2008-03-15
DK1764198T3 (da) 2008-06-16
WO2007033799A1 (fr) 2007-03-29

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