EP4043168A1 - Bedieneinheit für holzkantenanleimmaschinen oder ähnliches - Google Patents

Bedieneinheit für holzkantenanleimmaschinen oder ähnliches Download PDF

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Publication number
EP4043168A1
EP4043168A1 EP22156424.8A EP22156424A EP4043168A1 EP 4043168 A1 EP4043168 A1 EP 4043168A1 EP 22156424 A EP22156424 A EP 22156424A EP 4043168 A1 EP4043168 A1 EP 4043168A1
Authority
EP
European Patent Office
Prior art keywords
operating assembly
panel
copy attachment
copy
assembly according
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.)
Pending
Application number
EP22156424.8A
Other languages
English (en)
French (fr)
Inventor
Federico Agostini
Marco PAZZAGLIA
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.)
Biesse SpA
Original Assignee
Biesse 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 Biesse SpA filed Critical Biesse SpA
Publication of EP4043168A1 publication Critical patent/EP4043168A1/de
Pending 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
    • B27D5/003—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
    • 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 operating assembly for edgebanding machines to edgeband panels made of wood or the like.
  • Each panel has two main lateral faces, which are parallel to one another, two first smaller lateral faces, which are parallel to one another and perpendicular to the main lateral faces, and two second smaller lateral faces, which are parallel to one another and perpendicular to the first smaller lateral faces.
  • the panel is moved in a first direction, which is parallel to the second smaller lateral faces, at first through an edgebanding station, where a finishing edge is applied onto one of the second smaller lateral faces, and then through at least one finishing station (normally a plurality of finishing stations), where an operating assembly, for example a trimming assembly, an edge scraping assembly and/or a rounding assembly, processes the finishing edge and/or the panel.
  • an operating assembly for example a trimming assembly, an edge scraping assembly and/or a rounding assembly, processes the finishing edge and/or the panel.
  • the operating assembly comprises, in particular, a support frame; a first slide, which is coupled to the support frame in a sliding manner so as to make, relative to the support frame, straight movements in a second direction, which is transverse to the first direction and orthogonal to a panel support surface; a first copy attachment, which is carried by the first slide and is designed, in use, to come into contact with a main lateral face of the panel; a second slide, which is coupled to the first slide in a sliding manner so as to make, relative to the first slide, straight movements in a third direction, which is orthogonal to the aforesaid first and second direction and parallel to the support surface; a second copy attachment, which is carried by the second slide and is designed, in use, to come into contact with the finishing edge; and a cutting device, which is carried by the second slide in order to process the finishing edge and/or the panel.
  • the operating assembly further comprises a first pre-loaded pushing device, which is interposed between the support frame and the first slide in order to keep the first copy attachment in contact with the relative main lateral face; and a second pre-loaded pushing device, which is interposed between the first slide and the second slide in order to keep the second copy attachment in contact with the finishing edge.
  • the two pushing devices allow the cutting device to hold the correct position based on the profile of the main lateral face in contact with the first copy attachment and on the profile of the finishing edge in contact with the second copy attachment.
  • the first pushing device comprises at least one first spring, which is coupled to the support frame and to the first slide and is associated with a first adjustment device, which is designed to selectively control the pre-load of the first spring so as to exert, upon the first copy attachment, a first force other than zero when the first copy attachment is disengaged from the panel and a second force other than zero and greater than the first force when the first copy attachment is engaged on the panel; and the second pushing device comprises at least one second spring, which is coupled to the first slide and to the second slide and is associated with a second adjustment device, which is designed to selectively control the pre-load of the second spring so as to exert, upon the second copy attachment, a first force other than zero when the second copy attachment is disengaged from the panel and a second force other than zero and greater than the first force when the second copy attachment is engaged on the panel.
  • the initial position of the first slide in the second direction and of the second slide in the third direction is selectively controlled so as to allow the copy attachments to place themselves in a panel moving path when the copy attachments are disengaged from the panel, thus interfering with the panel.
  • the object of the invention is to provide an operating assembly for edgebanding machines to edgeband panels made of wood or the like, which does not suffer from the aforementioned drawbacks and can be manufactured in a simple and economic fashion.
  • number 1 indicates, as a whole, an operating assembly, for example a trimming assembly, an edge scraping assembly or a rounding assembly, for the finishing of substantially flat panels 2 made of wood or the like.
  • each panel 2 substantially has the shape of a parallelepiped and is delimited by two main lateral faces 3, which are parallel to one another, by two smaller lateral faces 4, which are parallel to one another and perpendicular to the faces 3, and by two smaller lateral faces 5, which are parallel to one another and perpendicular to the faces 3 and 4.
  • the panel 2 is fed through the operating assembly 1 in a horizontal direction 6 and is provided with a finishing edge 7, which is fixed to one of the faces 5.
  • the operating assembly 1 comprises, in particular, a support frame 8; a first vertical slide 9, which is coupled to the frame 8 in a sliding manner so as to make, relative to the frame 8, straight movements in a vertical direction 10, which is transverse to the direction 6; and a first horizontal slide 11, which is coupled to the slide 9 in a sliding manner so as to make, relative to the slide 9, straight movements in a horizontal direction 12, which is orthogonal to the directions 6 and 10.
  • the operating assembly 1 further comprises a second vertical slide 13, which is coupled to the slide 9 in a sliding manner so as to make, relative to the slide 9 and during a set-up phase of the operating assembly 1, straight movements in the direction 10; and a second horizontal slide 14, which is coupled to the slide 11 in a sliding manner so as to make, relative to the slide 11 and during a set-up phase of the operating assembly 1, straight movements in the direction 12.
  • the slide 13 supports a disc copy attachment 15, which is hinged to the slide 13 so as to rotate, relative to the slide 13, around a fulcrum axis 16 parallel to the direction 12 and is delimited by a substantially cylindrical lateral surface 17, which is designed, in use, to come into contact with the lower face 3 of the panel 2.
  • the slide 14 supports a disc copy attachment 18, which is hinged to the slide 14 so as to rotate, relative to the slide 14, around a fulcrum axis (not shown) inclined relative to the directions 10 and 12 and is delimited by a lateral surface 19 substantially having the shape of a truncated cone, which is designed, in use, to come into contact with the edge 7.
  • the copy attachments 15, 18 are fixed to the relative slides 13, 14 so as to scrape against the face 3 and the edge 7, respectively.
  • the slide 14 further supports a known cutting device, which is not shown herein and is designed to process the panel 2 and/or the edge 7.
  • the operating assembly 1 is further provided with a pushing device 20 comprising a pre-loaded compression spring 21, which is interposed between the frame 8 and the slide 9 and is designed to keep, in use, the copy attachment 15 in contact with the relative face 3.
  • a pushing device 20 comprising a pre-loaded compression spring 21, which is interposed between the frame 8 and the slide 9 and is designed to keep, in use, the copy attachment 15 in contact with the relative face 3.
  • the device 20 further comprises an adjustment screw 22 to selectively control the pre-load of the spring 21 so as to allow the device 20 to exert, upon the copy attachment 15, a first force other than zero when the copy attachment 15 is disengaged from the panel 2 and a second force other than zero and greater than the first force when the copy attachment 15 is engaged on the panel 2.
  • the operating assembly 1 is further provided with a pushing unit 23, which is interposed between the slide 9 and the slide 11 and is designed to keep, in use, the copy attachment 18 in contact with the edge 7.
  • the unit 23 comprises a first pushing device 24 provided, in particular, with two extension springs 25, which extend in the direction 12 and are aligned with one another in the direction 10.
  • the springs 25 are coupled, on one side, to respective support pins 26 projecting from the slide 9 in the direction 6 and, on the other side, to a plate 27 coupled to an adjustment screw 28 by means of a screw-nut screw coupling.
  • the screw 28 extends through the slide 11 in the direction 12 and selectively controls the position of the plate 27 so as to pre-load the springs 25 and allow the device 24 to exert, upon the copy attachment 18, a first force other than zero when the copy attachment 18 is disengaged from the panel 2 and a second force other than zero and greater than the first force when the copy attachment 18 is engaged on the panel 2.
  • the unit 23 further comprises a second pushing device 30 provided, in particular, with two extension springs 31, which extend in the direction 12 and are aligned with one another in the direction 10.
  • the springs 31 are coupled, on one side, to the pins 26 and, on the other side, to a plate 32 coupled, by means of a screw-nut screw coupling, to an adjustment screw 33, which extends through the slide 11 in the direction 12 and allows the position of the plate 32 to be selectively controlled so that:
  • the springs 31 are not pre-loaded and the first force is zero.
  • the slide 11 and, hence, the copy attachment 18 are subjected to the sole non-zero force of the springs 25 when the panel 2 disengages the copy attachment 18 and to the non-zero forces of the springs 25 and of the springs 31 when the panel 2 engages the copy attachment 18.
  • the copy attachment 18 always remains in contact with the edge 7 without ever detaching itself from it, thus ensuring a correct processing of the panel 2 and/or of the edge 7 by means of the aforesaid cutting device (which is not shown herein).
  • the plates 27, 32 are replaced by one single coupling plate 34 for the springs 25, 31 and the screws 28, 33 are replaced by on single adjustment screw 35 extending through the slide 11 in the direction 12.
  • the plate 34 is inclined at an angle other than 90° relative to the direction 12.
  • the screw 35 allows the position of the plate 34 to be selectively controlled so that:
  • the springs 31 are not pre-loaded and the first force is zero.
  • the variant shown in figure 8 differs from the one shown in figures 1 to 4 only in that, in it, the springs 25 and the plate 27 are eliminated and replaced by an actuator cylinder 36, which is fixed to the slide 9 parallel to the direction 12 and has an output rod 37 connected to the slide 11.
  • the cylinder 36 is connected to a pressurized fluid supplying device (not shown) through the interposition of a pressure adjuster 38.
  • the adjuster 38 selectively controls the pressure of the fluid supplied to the cylinder 36, so that the cylinder 36 exerts, upon the copy attachment 18, a first force other than zero when the copy attachment 18 is disengaged from the panel 2 and a second force other than zero, in particular equal to the first force, when the copy attachment 18 is engaged on the panel 2.
  • FIG 9 differs from figures 1 to 4 only in that, in it, the springs 25 and the plate 27 are eliminated and replaced by a compression spring 39.
  • the spring 39 is fitted onto a support rod 40 projecting from the slide 9 in the direction 12 and is interposed between the slide 11 and an adjustment nut 41, which is screwed onto the rod 40 and pre-loads the spring 39, hence exerting, upon the copy attachment 18, a first force other than zero when the copy attachment 18 is disengaged from the panel 2 and a second force greater than the first force when the copy attachment 18 is engaged on the panel 2.
EP22156424.8A 2021-02-11 2022-02-11 Bedieneinheit für holzkantenanleimmaschinen oder ähnliches Pending EP4043168A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102021000003059A IT202100003059A1 (it) 2021-02-11 2021-02-11 Gruppo operatore per macchine per la bordatura di pannelli di legno o simili

Publications (1)

Publication Number Publication Date
EP4043168A1 true EP4043168A1 (de) 2022-08-17

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ID=75660201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22156424.8A Pending EP4043168A1 (de) 2021-02-11 2022-02-11 Bedieneinheit für holzkantenanleimmaschinen oder ähnliches

Country Status (2)

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EP (1) EP4043168A1 (de)
IT (1) IT202100003059A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9306484U1 (de) * 1993-04-29 1993-09-09 Brandt Heinrich Masch Vorrichtung zum Anpressen von Kantenmaterial an die Kantenränder von Werkstücken im Durchlauf
WO2002014004A1 (de) * 2000-08-11 2002-02-21 Homag Holzbearbeitungssysteme Ag Bearbeitungsaggregat für ein bearbeitungszentrum
DE10234618A1 (de) * 2001-07-27 2003-02-13 Biesse Spa Baueinheit zum Aufbringen eines Randstreifens auf Tafeln aus Holz oder Ähnlichem
DE10229775C1 (de) * 2002-07-03 2003-07-10 Grotefeld Maschb & Vertriebs G Kapp- und Kantenrundungs-Aggregat
IT201800005935A1 (it) * 2018-06-01 2019-12-01 Gruppo intestatore per macchine per la bordatura di pannelli di legno o simili

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9306484U1 (de) * 1993-04-29 1993-09-09 Brandt Heinrich Masch Vorrichtung zum Anpressen von Kantenmaterial an die Kantenränder von Werkstücken im Durchlauf
WO2002014004A1 (de) * 2000-08-11 2002-02-21 Homag Holzbearbeitungssysteme Ag Bearbeitungsaggregat für ein bearbeitungszentrum
DE10234618A1 (de) * 2001-07-27 2003-02-13 Biesse Spa Baueinheit zum Aufbringen eines Randstreifens auf Tafeln aus Holz oder Ähnlichem
DE10229775C1 (de) * 2002-07-03 2003-07-10 Grotefeld Maschb & Vertriebs G Kapp- und Kantenrundungs-Aggregat
IT201800005935A1 (it) * 2018-06-01 2019-12-01 Gruppo intestatore per macchine per la bordatura di pannelli di legno o simili

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IT202100003059A1 (it) 2022-08-11

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