EP2730381A1 - Maschine zum Schneiden von Holzplatten oder dergleichen - Google Patents

Maschine zum Schneiden von Holzplatten oder dergleichen Download PDF

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Publication number
EP2730381A1
EP2730381A1 EP13186040.5A EP13186040A EP2730381A1 EP 2730381 A1 EP2730381 A1 EP 2730381A1 EP 13186040 A EP13186040 A EP 13186040A EP 2730381 A1 EP2730381 A1 EP 2730381A1
Authority
EP
European Patent Office
Prior art keywords
panels
cutting
machine according
support table
pressing device
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.)
Withdrawn
Application number
EP13186040.5A
Other languages
English (en)
French (fr)
Inventor
Lorenzo Lattanzi
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 EP2730381A1 publication Critical patent/EP2730381A1/de
Withdrawn legal-status Critical Current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
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/02—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only
    • B27B5/06—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels
    • B27B5/065—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels with feedable saw blades, e.g. arranged on a carriage

Definitions

  • the present invention relates to a machine for cutting wood panels or the like.
  • a cutting machine comprising a support structure defining a substantially horizontal support table for at least one wood panel or the like; a cutting station; at least one feeding device for feeding the panels along the support table and through the cutting station in a given first direction; and a cutting device, which is mounted in the cutting station to move in a second direction and along a cutting plane perpendicular to the first direction, and to cut the panels.
  • the cutting machine further comprises a pressing device, which is mounted in the cutting station to move perpendicularly to the support table, between a clamping position to clamp the panels against the support table, and a release position; and a safety system for controlling the access of operators to the cutting station.
  • the safety system generally comprises an emergency bar, which extends above the support table in the second direction, is arranged downstream of the support table in the first direction, and is hooked to the pressing device so as to be arranged at a given distance from the panels when the pressing device is in its clamping position.
  • the emergency bar is further coupled to the pressing device to move, with respect to the pressing device itself, between a lowered resting position and a raised operating position.
  • the emergency bar is moved in its raised operating position by an operator's hand caught between the panels and the pressing device so as to control at least the stopping of the cutting device and the raising of the pressing device itself.
  • the safety system further comprises a plurality of substantially flat oscillating flaps, which define a safety curtain, are mounted downstream of the cutting plane in the first direction, are distributed above the support table in the second direction, and are mounted to oscillate about an axis of fulcrum parallel to the second direction.
  • the flaps are normally arranged in respective lowered positions, in which the flaps are substantially arranged in contact with the support table so as to prevent access to each free area between the support table and the pressing device, i.e. not occupied by the panels, and are tilted so as to selectively move in respective raised positions under the bias of the panels fed through the cutting station.
  • the emergency bar is relatively long and thus is subject to bending and requires several frequent adjustments of its position with respect to the pressing device. Furthermore, the emergency bar generally consisting of an aluminium extruded piece extending over the whole width of the support table, may come in contact with the body parts of the operator possibly present in the cutting station, thus causing injury thereto. Finally, the emergency bars are to be manufactured in a number of models corresponding to the different widths of the cutting machine.
  • the oscillating flaps can be voluntarily raised by operators or can be removed and not replaced in the event of breakage, thus allowing access to each free area between the support table and the pressing device and not occupied by the panels.
  • numeral 1 indicates, as a whole, a cutting machine for cutting wood panels 2 or the like, which are substantially rectangular in shape.
  • Machine 1 has a support structure 3 comprising two portal frames 4 parallel to each other, each of which extends in a horizontal direction 5, and comprises two vertical uprights 6, 7 parallel to each other, which extend in a direction 8 transverse to direction 5, are aligned to the corresponding uprights 6, 7 of the other frame 4 in a horizontal direction 9 orthogonal to directions 5 and 8, and are connected to each other at the upper ends thereof by a horizontal longitudinal member 10 parallel to direction 5.
  • the two frames 4 are connected to each other by two crosspieces 11 parallel to each other extending between the uprights 6 parallel to direction 9, and by a crosspiece 12 extending between the uprights 7 parallel to direction 9.
  • Structure 3 further comprises two support devices 13, which are arranged on opposite sides of crosspiece 12 in direction 5, define, together with the upper face of crosspiece 12, a substantially horizontal support table P for panels 2, and comprise one (hereinafter indicated by 13a) a plurality of wheeled bars 14 parallel to one another and to direction 5, and the other (hereinafter indicated by 13b) four tables 15 parallel to one another and to direction 5 itself.
  • device 13a defines a station for loading the panels 2 into machine 1 and that device 13b defines a station for unloading the panels 2 from machine 1.
  • Machine 1 further comprises a cutting station 16, which is obtained at the uprights 7, and is equipped with a cutting device 17 comprising a motorized carriage 18 coupled in a known manner to a guide 19 which is fastened to the uprights 7 parallel to direction 9 to perform, with respect to structure 3 and under the bias of a known drive device (not shown), straight movements in direction 9.
  • a cutting station 16 which is obtained at the uprights 7, and is equipped with a cutting device 17 comprising a motorized carriage 18 coupled in a known manner to a guide 19 which is fastened to the uprights 7 parallel to direction 9 to perform, with respect to structure 3 and under the bias of a known drive device (not shown), straight movements in direction 9.
  • Carriage 18 supports a blade 20 and an engraver 21 which are mounted to rotate about respective longitudinal axes which are parallel to each other and to direction 5, and to perform straight movements in direction 8 between corresponding lowered resting positions, in which blade 20 and engraver 21 are arranged below table P to allow the feeding of panels 2 along table P, and corresponding raised operating positions, in which blade 20 and engraver 21 project through crosspiece 12 above the table P itself to cut the panels 2.
  • Blade 20 and engraver 21 are also moved by carriage 18 along a cutting plane 22 which is parallel to direction 9 with a straight alternating motion comprising an advancing stroke, where engraver 21, which is arranged in front of blade 20 in the advancing direction 9 of carriage 18, engraves the panel 2 arranged on table P and blade 20 cuts the panels 2, and a return stroke.
  • Device 17 cooperates with a pressing device 23 comprising two plates 24, which extend above table P in direction 9, are arranged on opposite sides of plane 22 in direction 5, and are slidingly coupled to the uprights 7 to perform, with respect to the uprights 7 and under the bias of a known drive device (not shown), straight movements in direction 8 from and to a lowered operating position, in which the panels 2 are blocked on table P and are cut by device 17 parallel to direction 9.
  • a pressing device 23 comprising two plates 24, which extend above table P in direction 9, are arranged on opposite sides of plane 22 in direction 5, and are slidingly coupled to the uprights 7 to perform, with respect to the uprights 7 and under the bias of a known drive device (not shown), straight movements in direction 8 from and to a lowered operating position, in which the panels 2 are blocked on table P and are cut by device 17 parallel to direction 9.
  • Machine 1 further comprises a pick and transport unit 25 for feeding the panels 2 along table P and through station 16 in both the ways of direction 5.
  • Unit 25 comprises a motorized support crosspiece 26, which extends between the two longitudinal members 10 in direction 9, is slidingly coupled to the two longitudinal members 10 to perform, with respect to the longitudinal members 10 and under the bias of a known drive device (not shown), straight movements in direction 5, and supports a plurality of picking members 27 distributed along the crosspiece 26 in direction 9.
  • Each member 27 is arranged between two adjacent bars 14, is movable with respect to crosspiece 26 between a raised resting position and a lowered operating position, and comprises two jaws which are movable with respect to each other between a clamping position and a release position of at least one panel 2.
  • unit 25 is eliminated and panels 2 are manually fed along table P and through station 16.
  • Machine 1 further comprises a safety system 28 for controlling the access of operators to the cutting station 16.
  • system 28 comprises an optical device 29, which is mounted on the opposite side of device 13a with respect to the cutting plane 22 in direction 5, and is hooked to the pressing device 23 to move in direction 8 following the same law of motion as the plates 24.
  • device 29 comprises a sender 30 of a laser beam 31 and a receiver 32 of the laser beam 31 generated by sender 30.
  • Sender 30 and receiver 32 are arranged on opposite sides of table P in direction 9, are connected to the plates 24 by means of respective supporting brackets 33, and are accommodated in respective channels 34, which are obtained inside the uprights 7 in direction 8, and communicate with the outside through respective slits 35 obtained through the uprights 7 in direction 9.
  • sender 30 and receiver 32 are hooked to the plates 24 so that, when the pressing device 23 is moved to its lowered operating position, the laser beam 31 is arranged at a certain distance from the panels 2 such as to allow the presence of an operator's hand caught between panels 2 and device 23 to be detected.
  • device 29 is eliminated and replaced, for example, by an optical video camera, a photocell, a thermal sensor, a thermal video camera, or an ultrasound device.
  • System 28 further comprises a control unit 36 adapted to detect the presence of foreign bodies in each free area between table P and device 23 and not occupied by the panels 2.
  • free area indicates each area that is not occupied by the panels 2, is restricted in direction 8 by table P and by a plane parallel to table P and tangent to the lower ends of plates 24, and extends downstream and/or upstream of plane 22 in direction 5.
  • unit 25 feeds two stacks of panels 2 defining two free areas 37a, 37b through station 16; area 37a is defined between the two stacks of panels 2 and area 37b is defined between one of the stacks of panels 2 and the adjacent upright 7.
  • Unit 36 comprises, for each area 37a, 37b, a respective optical viewing device, in this case a video camera 38 secured to a corresponding upright 7 above table P to detect the presence of foreign bodies in the corresponding area 37a, 37b.
  • a respective optical viewing device in this case a video camera 38 secured to a corresponding upright 7 above table P to detect the presence of foreign bodies in the corresponding area 37a, 37b.
  • the video camera 38 is mounted on the opposite side of device 13a with respect to the cutting plane 22 in direction 5, and is hooked to the corresponding upright 7 outside the plates 24 in direction 5 or, alternatively, between the plates 24.
  • the video cameras 38 obviously need to have a field of action which is limited to the corresponding areas 37a, 37b to prevent the presence of panels 2 being mistaken for the presence of foreign bodies.
  • the video cameras 38 are eliminated and replaced, for example, with a laser scanner or a photocell barrier.
  • the safety system 28 has certain advantages mainly due to the fact that:

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Laser Beam Processing (AREA)
EP13186040.5A 2012-09-25 2013-09-25 Maschine zum Schneiden von Holzplatten oder dergleichen Withdrawn EP2730381A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000519A ITBO20120519A1 (it) 2012-09-25 2012-09-25 Macchina per il taglio di pannelli di legno o simili

Publications (1)

Publication Number Publication Date
EP2730381A1 true EP2730381A1 (de) 2014-05-14

Family

ID=47190004

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13186040.5A Withdrawn EP2730381A1 (de) 2012-09-25 2013-09-25 Maschine zum Schneiden von Holzplatten oder dergleichen

Country Status (2)

Country Link
EP (1) EP2730381A1 (de)
IT (1) ITBO20120519A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107511886A (zh) * 2017-09-26 2017-12-26 重庆三好纸业有限公司 造纸用压板式木材切割装置
IT201700052888A1 (it) * 2017-05-16 2018-11-16 Biesse Spa Macchina per la lavorazione di componenti di legno o simili

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001048417A1 (fr) * 1999-12-24 2001-07-05 Lectra Sa Systeme de traitement avec dispositif de protection pour table de traitement securise
EP1304188A2 (de) * 2001-10-19 2003-04-23 IMPRESA 2000 DI SACCHI PARIDE E C. s.a.s. Verfahren und Maschine zur Bearbeitung von Holzteilen oder dergleichen
DE102007044679B3 (de) * 2007-09-19 2008-11-27 Sick Ag Konfigurationsmittel für Sicherheits-Lichtgitter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20060270A1 (it) * 2006-09-06 2008-03-07 Scm Group Spa Macchina operatrice
DE102007044804A1 (de) * 2007-09-20 2009-04-09 Robert Bosch Gmbh Werkzeugmaschinensicherheitsvorrichtung
US8091456B2 (en) * 2008-03-25 2012-01-10 Power Tool Institute Safety devices for saws
US20100154933A1 (en) * 2008-08-19 2010-06-24 Hatch Jr J Melvon Apparatus for concurrently sizing, squaring, shaping, and sanding rectangulary work pieces

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001048417A1 (fr) * 1999-12-24 2001-07-05 Lectra Sa Systeme de traitement avec dispositif de protection pour table de traitement securise
EP1304188A2 (de) * 2001-10-19 2003-04-23 IMPRESA 2000 DI SACCHI PARIDE E C. s.a.s. Verfahren und Maschine zur Bearbeitung von Holzteilen oder dergleichen
DE102007044679B3 (de) * 2007-09-19 2008-11-27 Sick Ag Konfigurationsmittel für Sicherheits-Lichtgitter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700052888A1 (it) * 2017-05-16 2018-11-16 Biesse Spa Macchina per la lavorazione di componenti di legno o simili
EP3403796A1 (de) * 2017-05-16 2018-11-21 BIESSE S.p.A. Maschine zur verarbeitung von komponenten aus holz oder dergleichen
CN107511886A (zh) * 2017-09-26 2017-12-26 重庆三好纸业有限公司 造纸用压板式木材切割装置
CN107511886B (zh) * 2017-09-26 2019-08-27 重庆三好纸业有限公司 造纸用压板式木材切割装置

Also Published As

Publication number Publication date
ITBO20120519A1 (it) 2014-03-26

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