EP3552786A1 - Vorrichtung und verfahren zum bearbeiten eines randes eines werkstückes - Google Patents

Vorrichtung und verfahren zum bearbeiten eines randes eines werkstückes Download PDF

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Publication number
EP3552786A1
EP3552786A1 EP19166686.6A EP19166686A EP3552786A1 EP 3552786 A1 EP3552786 A1 EP 3552786A1 EP 19166686 A EP19166686 A EP 19166686A EP 3552786 A1 EP3552786 A1 EP 3552786A1
Authority
EP
European Patent Office
Prior art keywords
detecting device
panel
friction element
edge
machine
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
EP19166686.6A
Other languages
English (en)
French (fr)
Other versions
EP3552786B1 (de
Inventor
Pier Luigi FELICI
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 Industria SpA
Original Assignee
SCM Industria SpA
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Filing date
Publication date
Application filed by SCM Industria SpA filed Critical SCM Industria SpA
Publication of EP3552786A1 publication Critical patent/EP3552786A1/de
Application granted granted Critical
Publication of EP3552786B1 publication Critical patent/EP3552786B1/de
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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
    • 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
    • B27C5/02—Machines with table
    • 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
    • B27C5/02—Machines with table
    • B27C5/06—Arrangements for clamping or feeding work
    • 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
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity

Definitions

  • This invention relates to a machine and a method for machining an edge of a panel.
  • the invention relates to a machine for machining, or more precisely, cutting at least one edge of a panel, such as, for example, a panel made of wood or other material, on the basis of the shape of the panel.
  • the machines are equipped with special devices, so-called “copying devices”, for detecting the shape of the panels to be machined.
  • the prior art copying devices have various disadvantages and drawbacks, such as, for example, the high risk of damaging the surfaces of the panels during the machining due to the friction produced by the excessive rotation of the copying devices on the panels to be machined.
  • the aim of the invention is therefore to provide a machine for machining an edge of a panel which does not ruin or damage the surfaces of the panels during the machining of the relative edges.
  • Another aim of the invention is to provide a machine for machining an edge of a panel which is particularly efficient and high performing.
  • a further aim of the invention is to provide a machine for machining an edge of a panel which allows excellent results in terms of quality and precision to be obtained during use.
  • Another aim of the invention is to provide a machine for machining an edge of a panel which has a reduced structural complexity.
  • Another aim of the invention is to provide a machine for machining an edge of a panel which has particularly reduced execution times.
  • the specific object of this invention is therefore a machine for machining at least one edge of a panel positioned parallel to a plane identified by a first direction and a second direction, said machine comprising: a cutting member for cutting said at least one edge of said panel; a detecting device for detecting, in use, the shape of said panel whilst said detecting device rolls on said panel, wherein said detecting device is idly rotatable about a rotation axis parallel to said second direction and connected with said cutting member; a braking system for braking the rotation of said detecting device, said braking system comprising a first friction element and a second friction element positioned, respectively, above and below a plane parallel to said plane and passing through said rotation axis and configured for producing friction when touched by said detecting device; and a movement system for moving said detecting device between at least one first position, where said detecting device is in contact with said panel while said cutting member cuts said at least one edge, and at least one second position, where said detecting device is in contact with said first friction element or
  • said first friction element and said second friction element can be elongated elements.
  • said first friction element and said second friction element are parallel.
  • said first friction element and said second friction element can each have a friction surface which has a substantially planar shape facing towards said detecting device.
  • said moving system can be configured to move, in use, said detecting device around said panel.
  • said machine can comprise a second moving system to move, in use, said panel along an advancing direction in the space comprised between said first friction element and said second friction element.
  • said first friction element and said second friction element are parallel to said advancing direction.
  • An object of the invention is also a method for machining at least one edge of a panel by means of a machine as indicated above, said method comprising the steps of: providing a machine as indicated above; moving said detecting device in said at one first position; rolling said detecting device on said panel such that said cutting member cuts said at least one edge of said panel; and moving said detecting device in said at least a second position such that the rotation of said detecting device decelerates due to friction between said detecting device and said first friction element or said second friction element.
  • said method can comprise the steps of: moving said detecting device on a first zone of said panel; rolling said detecting device on a first surface of said panel, such that said cutting member cuts a first portion of said at least one edge adjacent to said first surface of said panel; moving said detecting device on said second friction element such that the rotation of said detecting device decelerates due to friction between said detecting device and said second friction element; moving said detecting device on a second zone of said panel; rolling said detecting device on a second surface of said panel, opposite to said first surface, such that said cutting member cuts a second portion of said at least an edge adjacent to said second surface of said panel; and moving said detecting device on said first friction element such that the rotation of said detecting device decelerates due to friction between said detecting device and said first friction element.
  • said method can comprise moving said panel along an advancing direction in the space comprised between said first friction element and said second friction element.
  • the numeral 1 denotes a machine for edging wooden panels, such as, for example, panels made of wooden chipboard.
  • the above-mentioned machine 1 comprises a supporting surface 2 which extends along a first axis X, above which there is a roller 3, that is to say, a series of rollers alongside each other.
  • the supporting surface 2 and the roller 3 are positioned at a distance such that the interposing, between them, of a panel P arranged horizontally, that is, parallel to plane identified by the first axis X and by a second axis Y at right angles to said first axis X.
  • the machine 1 also comprises a movement system to allow the feeding of the panel along the supporting surface 2, along an advancing direction A parallel to the above-mentioned first axis X.
  • the machine 1 comprises various operational systems and units positioned, in line, to the side of the supporting plane 2 and the roller 3, including a system for applying and gluing an edge element E flexible on a side face F of the panel P and, downstream of this, a system for end trimming the edge element comprising a working device 4 which comprises, in turn, a cutting tool 5 with a rotary operation about an axis of rotation Y1 parallel to the above-mentioned second axis Y and a copying device, that is to say, a device for detecting the exact profile of the panel P during the machining.
  • a working device 4 which comprises, in turn, a cutting tool 5 with a rotary operation about an axis of rotation Y1 parallel to the above-mentioned second axis Y and a copying device, that is to say, a device for detecting the exact profile of the panel P during the machining.
  • the cutting tool 5 has a circular extension and a plurality of shaped blades 7, positioned equidistant to each other around the periphery of the tool.
  • the blades of the above-mentioned plurality of blades 7 are preferably four in number and arranged at 90° from each other.
  • each blade 7 is formed by an outer rectilinear section 7a, substantially parallel to said axis of rotation Y1, and a inner curved section 7b curved in a substantially radial direction.
  • a groove 7' is formed, that is, a recess, to allow, in use, the discharge of machining waste during rotation of the cutting member 5.
  • the copying device comprises, on the other hand, a rolling roller 8 mounted in an idle fashion on the cutting member 5 and a contact element 6 on which is fitted a spring acting such as to constantly push against the panel P, during machining, along the above-mentioned second axis Y.
  • the above-mentioned cutting tool 5 is also movable with respect to the contact element 6 along said second axis Y.
  • Both the roller 8 and the contact element 6 are coaxial to the cutting tool 5.
  • roller 8 and the contact element 6 carry out the function of determining the exact position of the panel P along, respectively, the third axis Z and the second axis Y.
  • the machine 1 there is also a dedicated movement system for moving the working device 4 on a plane defined by the first axis X and by a third axis Z at right angles to the first axis X and to the second axis Y, independently from the movement of the panel P.
  • the same movement system just mentioned also allows the working device 4 to be moved along the second axis towards or away from the panel P.
  • the machine 1 comprises a control system 9 for limiting the rotation of the copying device during the various machining steps on the panel P.
  • the control system 9 comprises, in a position above and below the zone for passage of the panel P, an upper rectilinear support element 10 and a lower rectilinear support element 11, both oriented parallel to the first axis X of the panel P.
  • the above-mentioned upper support element 10 is movable along the third axis Z, and the lower support element 11 is movable along said first axis X independently from the movement of the working device 4 along the same axis.
  • the machine 1 also comprises a contact element 12 for feeling, that is to say, detecting, the exact position of the panel P during predetermined working steps, such as to act as a spatial reference for operation of the working device 4.
  • the contact element 12 is positioned below the zone of passage of the panel P e movable along the first axis X integral with the upper support element 10 and the lower support element 11.
  • the above-mentioned contact element 12 is, on the other hand, movable, along the third axis Z, between a raised operating position and a lowered rest position.
  • a final trimming system (not illustrated) for cutting, that is to say, removing, the portions of the edge element E protruding from the face of the panel P, remaining from the machining by means of the above-mentioned working device 4.
  • the final trimming system comprises two rotary cutting tools, with a fixed position, arranged facing each other at a reciprocal distance substantially equal to the height of the panel P, such that when the latter is passed through the space between said two rotary cutting tools, the protruding portions, upper and lower, of the edge element E are cut flush with the panel P.
  • the panel P is advanced along the advancing direction A at a constant speed and subjected, during the movement, to a series of successive machining operations.
  • a flexible edge element E is applied, by gluing, on the side face F of the panel P facing the machine 1 fed in a continuous fashion and cut to size after having been glued to the face.
  • edge element E is dimensioned and cut such as to protrude both from the upper 13 and lower 14 faces and from the front 15 and rear 16 faces (see figures 21 and 22 ).
  • the contact element 12 rises until making contact with the front face 15 of the panel P.
  • the roller 8 of the copying device moves from a position resting on the upper support element 10 (see Figure 11 ) downwards until coming into contact with the upper face 13 of the panel P moving the contact element 6 in abutment with the edge element E, such as to allow the cutting member 5, already operational, to cut an upper part of the edge element E flush with the upper face 13 (see figure 12 ).
  • the work device 4 advances with respect to the panel P and then downwards (see Figure 13 ) so that the contact element 6 constantly adheres to the edge element E and the roller 8 first on the upper face 13 and them on the lower face 15, allowing, in this way, the cutting of the portion of the edge element E protruding from the front face 15, flush with the latter.
  • the contact element 12 moves to the lower rest position.
  • the work device 4 withdraws for a short section in the opposite direction to the advancing direction A in such a way as to cut a short side section of the portion of the edge element E protruding from the lower face 14 of the panel P (see Figure 14 ), before lowering until the roller 8 is brought into contact with the underlying lower supporting element 11 (see Figure 15 ).
  • the friction produced by the contact between the lower support element 11 and the roller 8 determines the stopping of the rotation of the latter.
  • both the work device 4 and the control system 9 stop in position, stopping their transfer, until they are passed by the panel P constantly advancing along the advancing direction A (see Figure 16 ).
  • the work device 4 moves upwards moving the roller 8 into contact with the lower face 14 of the panel P allowing the cutting, by the cutting member 5, of a rear section of the portion of the edge element E protruding from the lower face 14 (see Figure 17 ).
  • the contact element 12 During the cutting of the above-mentioned portion of the edge element E protruding from the front face 16, the contact element 12 returns to the respective lower rest position.
  • the work device 4 After trimming the portion of the edge element E protruding from the rear face 16, the work device 4 advances with respect to the panel P along the advancing direction A, keeping the roller 8 adhering to the upper face 13 and in this way allowing the cutting, by the cutting member 5, of a rear section of the portion of the edge element E protruding from the same upper face 13 (see Figure 19 ).
  • the friction produced by the contact between the lower support element 10 and the roller 8 determines the stopping of the rotation of the same roller 8.
  • the braking function exerted by the upper supporting element 10 and lower supporting element 11 on the roller 8 of the copying device prevents the latter from reaching a rotation sped which is too high which could damage the surface of the upper 13 and lower 14 faces of the panel P.
  • the edge element E Upon completion of the work cycle described above, the edge element E has a protruding extra upper portion and a protruding extra lower portion from, respectively, the upper face 13 and the lower face 14 of the panel P (see figure 20 ).
  • the panel P is conveyed towards the above-mentioned final trimming system, where the upper and lower extra portions of the edge element E are removed.
  • both the inner curved section 7b and a part of the outer rectilinear section 7a of the blades 7 are engaged on the edge element E determining a rounded cut, that is to say, bevelled, as shown in Figures 25 and 26 .
  • the work cycle described above can, clearly, be repeated according to the number of faces of the panel P to be edged, changing the orientation of the panel P at each work cycle.
  • control system described allows the machining operations planned on the edge of the panel to be performed effectively without the risk of damaging it.
EP19166686.6A 2018-04-13 2019-04-02 Vorrichtung und verfahren zum bearbeiten eines randes eines werkstückes Active EP3552786B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102018000004485A IT201800004485A1 (it) 2018-04-13 2018-04-13 Macchina e metodo per la lavorazione di un bordo di un pezzo.

Publications (2)

Publication Number Publication Date
EP3552786A1 true EP3552786A1 (de) 2019-10-16
EP3552786B1 EP3552786B1 (de) 2020-04-22

Family

ID=62816972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19166686.6A Active EP3552786B1 (de) 2018-04-13 2019-04-02 Vorrichtung und verfahren zum bearbeiten eines randes eines werkstückes

Country Status (5)

Country Link
EP (1) EP3552786B1 (de)
CN (1) CN110370421B (de)
ES (1) ES2793282T3 (de)
IT (1) IT201800004485A1 (de)
TW (1) TWI793304B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111391061B (zh) * 2020-04-27 2022-06-28 南兴装备股份有限公司 一种自动封边机的加工方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196749A (en) * 1964-01-23 1965-07-27 American Machine & Res Corp Guide roller brake for router
DE4113543A1 (de) * 1991-04-25 1992-10-29 Homag Maschinenbau Ag Vorrichtung zur bearbeitung der kantenraender von plattenfoermigen werkstuecken
EP0583753A1 (de) * 1992-08-17 1994-02-23 KARL M. REICH MASCHINENFABRIK GmbH Kantenfräse mit einer Anschlagvorrichtung
DE202007005499U1 (de) * 2007-04-17 2007-07-12 Heßler, Christoph, Dr. Tastrollenbremse
EP2492072A2 (de) * 2011-02-22 2012-08-29 Homag Holzbearbeitungssysteme GmbH Bearbeitungsvorrichtung mit Tastrolle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207193A (en) * 1963-01-04 1965-09-21 Stanley Works Rotary cutting tool
NZ526360A (en) * 2003-05-30 2005-11-25 Gregory John O Connell A Panel Edge Modification Device or Unit for a Contour Edge Banding Device
ITBO20080179A1 (it) * 2008-03-20 2009-09-21 Biesse Spa Unita' operatrice per la lavorazione di pannelli di legno o simili
CN102510794B (zh) * 2009-10-09 2014-11-12 日本省力机械株式会社 仿形加工装置
CN201922488U (zh) * 2010-11-23 2011-08-10 陈子初 全自动靠模仿形车削机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196749A (en) * 1964-01-23 1965-07-27 American Machine & Res Corp Guide roller brake for router
DE4113543A1 (de) * 1991-04-25 1992-10-29 Homag Maschinenbau Ag Vorrichtung zur bearbeitung der kantenraender von plattenfoermigen werkstuecken
EP0583753A1 (de) * 1992-08-17 1994-02-23 KARL M. REICH MASCHINENFABRIK GmbH Kantenfräse mit einer Anschlagvorrichtung
DE202007005499U1 (de) * 2007-04-17 2007-07-12 Heßler, Christoph, Dr. Tastrollenbremse
EP2492072A2 (de) * 2011-02-22 2012-08-29 Homag Holzbearbeitungssysteme GmbH Bearbeitungsvorrichtung mit Tastrolle

Also Published As

Publication number Publication date
CN110370421A (zh) 2019-10-25
ES2793282T3 (es) 2020-11-13
CN110370421B (zh) 2022-07-29
TW201943525A (zh) 2019-11-16
EP3552786B1 (de) 2020-04-22
TWI793304B (zh) 2023-02-21
IT201800004485A1 (it) 2019-10-13

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