EP0997245A2 - Paneelkantenbearbeitungseinheit - Google Patents

Paneelkantenbearbeitungseinheit Download PDF

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Publication number
EP0997245A2
EP0997245A2 EP99830683A EP99830683A EP0997245A2 EP 0997245 A2 EP0997245 A2 EP 0997245A2 EP 99830683 A EP99830683 A EP 99830683A EP 99830683 A EP99830683 A EP 99830683A EP 0997245 A2 EP0997245 A2 EP 0997245A2
Authority
EP
European Patent Office
Prior art keywords
unit
panel
edge
way
band
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
EP99830683A
Other languages
English (en)
French (fr)
Other versions
EP0997245B1 (de
EP0997245A3 (de
Inventor
Fabio Maioli
Massimo Rosati
Giuseppe Cavalli
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.)
SCM Group SpA
Original Assignee
SCM Group SpA
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 SCM Group SpA filed Critical SCM Group SpA
Publication of EP0997245A2 publication Critical patent/EP0997245A2/de
Publication of EP0997245A3 publication Critical patent/EP0997245A3/de
Application granted granted Critical
Publication of EP0997245B1 publication Critical patent/EP0997245B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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 present invention relates to a unit for machining the edges of panels for edge banding machines and used in particular to machine the edges of panels made of wood or similar material to which a strip made preferably, but not only, of synthetic material has been applied.
  • the panels made of solid wood or wood derived material such as chipboard or even of plastic are widely used in the manufacture of furniture and shelving and come in many different sizes and shapes, depending on market requirements and on what the panels will be used for.
  • the production line for panels of this kind consists of machines, known as "transfer” machines, where the panel is fed along two or more successive units, hereinafter referred to as machining stations. These machines are normally used to perform a certain number of operations, which are always identical within a single batch, on large numbers of panels to be used for the manufacture of furniture.
  • the large surfaces of the "unfinished" panel (especially if it is a chipboard panel) are covered by a veneer of decorative wood or laminate in order to give the panel an attractive surface finish.
  • the veneering varies in colour and material according to the purpose of the panel.
  • the panels are cut down to the required sizes and are transferred to an edge banding station where a strip or edge band is glued to the uncovered edge of each panel.
  • the edge band is larger in area than the edge of the panel and is applied in such a way that it protrudes from the latter.
  • the protruding sections must be trimmed in order to reduce the edge band to the same size as the panel edge. This is done at a station following the edge band gluing station.
  • This station consists of two or more substations, each designed to perform a specific operation.
  • a first operating unit comprising at least one end trimming tool which cuts the edge band at the front and back ends of the panel so that the length of the edge band is the same length as the panel edge.
  • the panel reaches a second operating unit where a trimming tool trims the top and bottom excess parts of the edge band lengthways.
  • a trimming tool trims the top and bottom excess parts of the edge band lengthways.
  • the panel will be machined at the edge banding station by suitably profiled tools designed to copy the front and back of the radiused end profile at the ends of the panel edge.
  • This size reduction can be achieved by creating multifunctional operating units, especially for the end trimming, lengthways trimming and profiling operations described above.
  • a configuration with four power-driven units has been known for some time. These are four electro-spindles with tool and edge profile copier with which, by guided driving close to the panel feed line, it is possible to perform these operations, even if the operating elements have to be changed between one operation and the next.
  • the operating elements (or at least the tools) must be changed when one passes from panels with a relatively thick veneer to panels with a thin veneer or no veneer at all, or if panels with straight or tapered edge are being machined.
  • the size of the station was reduced by using only two operating units, independent of each other, and each consisting of a single power tool equipped with a corresponding panel edge copier.
  • Each unit is connected to means for driving the tool in directions lying in a vertical plane in such a way that each unit is driven along two controlled axes (the X-axis and Z-axis on the machine) following predetermined paths such as to define two or more working positions on the panel, in permanent contact with the panel in such a way that the edge band copies the shape of the panel edge.
  • the Applicant has managed to create a panel edge machining unit whose dimensions are even smaller than those of the above mentioned solution thanks to the use of operating units structured in such a way as to enable the end trimming, lengthways trimming and profiling operations to be performed on the panel without changing any operating element and with extremely reduced movements for each unit, while maintaining high machining speeds and high quality standards of the end product.
  • edge machining unit disclosed is used in particular to machine prism-shaped panels 1 made of wood or plastic and with edges 1b of limited thickness S.
  • the ends of the panels 1a have differently shaped edges, for example, sharp edges (see Figure 1) or radiused to varying degrees as far as a straight angle (two examples of such radiused edges are shown in Figures 2 and 3).
  • the edge banding unit 2 disclosed forms part of machines having a horizontal table 3 along which the panel 1 is moved along a feed line, indicated by the arrow L, to two or more successive stations.
  • a band 4 of material preferably a synthetic material, lying in a vertical plane V (see Figure 3) perpendicular to the feed table 3, is glued to the edge 1b of the panel 1, the band projecting from the edge 1b itself (in Figures 1 to 3, the "unfinished" band 4 is drawn with a dashed line).
  • the unit 2 disclosed basically comprises means 5 for machining the band 4 in such a way as to reduce the band to the size and shape of the edge 1b of the panel 1.
  • the means 5 for machining the band 4 comprise two operating units 6 and 7, independent of each other and each consisting of a single power tool equipped with corresponding means for copying the edge 1b of the panel 1.
  • the units 6 and 7 are not described or illustrated in detail since they fall within the scope of patent application No. BO97A000188 by the same Applicant.
  • each of the operating units 6 and 7 is connected to means 8 which control and drive it and which comprise a corresponding structure 9 and 10 that moves in both directions (see arrows F) along an axis Z which is inclined with respect to the panel 1 feed line L and along a plane which is parallel to the vertical plane V.
  • Each of these structures 9 and 10 is pivoted, at U1 and U2 respectively, in such a way as to enable the structures 9 and 10 to swing in both directions (see arrows F1) so as to enable the structures 9 and 10 to swing in both directions (see arrows F1) in such a way as to drive each unit 6 and 7 along predetermined straight and arched paths and in such a way as to define on the panel 1 two or more working positions, in permanent contact with the panel, such that both the units 6 and 7, cause the band 4 to copy the shape of the edge 1b of the panel 1.
  • each unit 6 and 7, thanks to the corresponding structure 9 and 10, can machine the panel 1 in such a way as to perform end trimming, lengthways trimming and profiling of the edge band 4.
  • each unit 6 and 7 covers one half of the profile of the edge 1b of the panel 1 thanks to the straight and arched path followed by the structure.
  • one of the structures is pivoted at U1, below the work table 3, and is connected to a fixed machine bed 11 to which the unit 2 is fitted in such a way that the operating unit 6 works below the table and at the front end of the panels 1 in relation to their feed direction along the feed line L.
  • the other structure is pivoted at U2 to a vertical column 12 connected to the bed 11, at a point U2 above the work table 3 in such a way that the operating unit 7 works above the table 3 and at the rear end of the panels 1 in relation to their feed direction along the feed line L.
  • the second structure 10, since it is above the table 3, is equipped with means 13 for adjusting it in such a way as to vary the height of the related unit 7, towards or away from the table 3 (see arrows F2), according to the thickness S of the panel 1 to be machined.
  • each of the structures 9 and 10 consists of a block 14, 15 which mounts the corresponding operating unit 6, 7 and to which there is connected a first piston 16, 17 whose stem 16', 17' is attached to a fixed surface 18, 19 of a beam 20, 21 extending at an angle to the work table 3.
  • Each of the fixed beams 20, 21 has a guide 22, 23 in which the block 14, 15 runs in such a way that the action of the first piston 16, 17 raises or lowers the corresponding unit 6, 7 relative to the work table 3, in a straight path.
  • Each of the beams 20, 21 is equipped, at an intermediate point, with a corresponding pin 24, 25 defining the above mentioned pivot point U1, U2: the first pin 24 is attached to the bed 11 by a mounting plate 30, while the second pin 25 is attached to the vertical column 12 by a shaped bracket 31.
  • the two units 6, 7 can swing in both directions so as to follow the profile of the edge 1b of the panel 1.
  • the path followed is arched thanks to a corresponding second piston 26, 27 whose stem 26', 27' is attached to a free end of each beam 20, 21 by a corresponding fork 32, 33.
  • the cylinder of each second piston 26, 27 is attached to the bed 11 and to the column 12, respectively.
  • the cylinder of the second piston 27 acting on the second structure 10 is attached to an extension 34 of the bracket 31.
  • the above mentioned means 13 for adjusting the second unit 7 in height consist of a carriage 28 connected to the vertical column 12, supporting the entire structure 10 and sliding on a guide 35 made on the vertical column 12.
  • the slide 28 is acted upon by a drive unit 29 consisting of a lead nut and screw assembly 36 and 37 connected to a bevel gear pair 38 designed to transmit motion from adjustment means (not illustrated) to the drive unit 29 itself .
  • the bevel gear wheels 38 and the adjustment means are housed near the bed 11: in this way, it is possible to adjust the starting height of the second unit 7 in accordance with the thickness S of the panel 1 to be machined.
  • the units 6 and 7, the pistons 16, 17, 26, 27 and the means 13 for adjusting the height of the second unit 7 are controlled by a drive unit 39 of the profiling machine (illustrated schematically as a block since it is of the known type).
  • FIGS. 6 and 7 show, in alphabetical sequence, the different stages in the machining cycle of the first unit 6, that is, the front, lower one.
  • the unfinished edge band 4 is drawn with a dashed line.
  • the unit 6 is located at the centreline of the panel 1 being fed until contact between the unit 6 and the panel 1 occurs (see Figure 6a), that is to say, until the copier and tool assembly reaches the panel 1.
  • the first control piston 16 enables the unit 6 to move downwards (arrow F3, Figure 6b), gradually profiling the edge of the panel 1, which in this case is radiused at a straight angle (see Figure 6b).
  • the tool automatically follows the profile of the panel downward along F3 and until it reaches the body of the panel, where the unit 6 is held in a stable position so as to trim the lower part of the edge of the panel 1 as the latter continues moving forward (see Figure 6c).
  • the holding of the tool in this stable position is facilitated by the second piston 26.
  • the second piston 26 comes into operation and causes the unit 6 to rotate about the pivot point U1 (see arrow F5, Figure 7b) so as to follow the rear edge 1b along the arched path in such a way as to copy the shape of the edge 1b of the panel 1 until it reaches the centreline (see Figures 7b and 7c, arrow F5).
  • the second unit 7 profiles and trims the front and rear of the upper part of the edge 1b of the panel 1.
  • the motion of the unit 7 is substantially symmetrical to that followed by the unit 6 and in the opposite direction.
  • a unit as described above therefore achieves the set aims with its simple, compact structure and thanks to the two inclined units which work one above the other in a reduced space. Moreover, the unit in no way affects the quality standard of the end products and the high operating speeds required of machines of this kind.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Machine Tool Units (AREA)
  • Automatic Assembly (AREA)
  • Basic Packing Technique (AREA)
  • Confectionery (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Handling Of Cut Paper (AREA)
  • Machine Tool Copy Controls (AREA)
EP99830683A 1998-10-30 1999-10-29 Paneelkantenbearbeitungseinheit Expired - Lifetime EP0997245B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1998BO000614A IT1304235B1 (it) 1998-10-30 1998-10-30 Gruppo di lavorazione di bordi di pannelli.
ITBO980614 1998-10-30

Publications (3)

Publication Number Publication Date
EP0997245A2 true EP0997245A2 (de) 2000-05-03
EP0997245A3 EP0997245A3 (de) 2001-03-21
EP0997245B1 EP0997245B1 (de) 2004-04-14

Family

ID=11343484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99830683A Expired - Lifetime EP0997245B1 (de) 1998-10-30 1999-10-29 Paneelkantenbearbeitungseinheit

Country Status (5)

Country Link
EP (1) EP0997245B1 (de)
AT (1) ATE264171T1 (de)
DE (1) DE69916395T2 (de)
ES (1) ES2218979T3 (de)
IT (1) IT1304235B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1479467A1 (de) * 2003-05-22 2004-11-24 PAUL OTT GmbH Bearbeitungsvorrichtung zur Bearbeitung von Kanten an Stirnseiten von plattenförmigen Werkstücken
EP1205257A3 (de) * 2000-10-16 2004-12-15 Nordson Corporation Vorrichtung zum flächigen Auftragen von fliessfähigem Klebstoff auf ein relativ zu der Vorrichtung bewegbares Bandmaterial, insbesondere Möbelumleimer
EP1588812A1 (de) * 2004-04-21 2005-10-26 SCM GROUP S.p.A. Kantenanleimvorrichtung mit Laserschneidsystem
EP1785226A2 (de) 2005-11-10 2007-05-16 SCM GROUP S.p.A. Einstellungsvorrichtung
EP1875994A1 (de) * 2006-07-07 2008-01-09 SCM GROUP S.p.A. Werkzeugmaschine
EP2689903A1 (de) * 2012-07-23 2014-01-29 SCM Group Tecmatic Maquinas e Equipamentos Ltda Abrundungs- und Beschneidungsgruppe für Kanten von Platten

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1467986A (fr) * 1965-12-20 1967-02-03 Ogier Machine à affleurer les bouts des chants plaqués sur panneaux

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1467986A (fr) * 1965-12-20 1967-02-03 Ogier Machine à affleurer les bouts des chants plaqués sur panneaux

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1205257A3 (de) * 2000-10-16 2004-12-15 Nordson Corporation Vorrichtung zum flächigen Auftragen von fliessfähigem Klebstoff auf ein relativ zu der Vorrichtung bewegbares Bandmaterial, insbesondere Möbelumleimer
EP1479467A1 (de) * 2003-05-22 2004-11-24 PAUL OTT GmbH Bearbeitungsvorrichtung zur Bearbeitung von Kanten an Stirnseiten von plattenförmigen Werkstücken
EP1588812A1 (de) * 2004-04-21 2005-10-26 SCM GROUP S.p.A. Kantenanleimvorrichtung mit Laserschneidsystem
EP1785226A2 (de) 2005-11-10 2007-05-16 SCM GROUP S.p.A. Einstellungsvorrichtung
EP1785226A3 (de) * 2005-11-10 2007-06-06 SCM GROUP S.p.A. Einstellungsvorrichtung
EP1875994A1 (de) * 2006-07-07 2008-01-09 SCM GROUP S.p.A. Werkzeugmaschine
EP2689903A1 (de) * 2012-07-23 2014-01-29 SCM Group Tecmatic Maquinas e Equipamentos Ltda Abrundungs- und Beschneidungsgruppe für Kanten von Platten

Also Published As

Publication number Publication date
ITBO980614A0 (it) 1998-10-30
DE69916395D1 (de) 2004-05-19
EP0997245B1 (de) 2004-04-14
EP0997245A3 (de) 2001-03-21
IT1304235B1 (it) 2001-03-13
DE69916395T2 (de) 2005-05-04
ITBO980614A1 (it) 2000-04-30
ATE264171T1 (de) 2004-04-15
ES2218979T3 (es) 2004-11-16

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