EP0500161B1 - Bogenschneidmaschine für geschältes Holzfurnier - Google Patents

Bogenschneidmaschine für geschältes Holzfurnier Download PDF

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Publication number
EP0500161B1
EP0500161B1 EP92200356A EP92200356A EP0500161B1 EP 0500161 B1 EP0500161 B1 EP 0500161B1 EP 92200356 A EP92200356 A EP 92200356A EP 92200356 A EP92200356 A EP 92200356A EP 0500161 B1 EP0500161 B1 EP 0500161B1
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EP
European Patent Office
Prior art keywords
strip
station
accordance
cut
transverse
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Expired - Lifetime
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EP92200356A
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English (en)
French (fr)
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EP0500161A3 (en
EP0500161A2 (de
Inventor
Lorenzo Cremona
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Angelo Cremona e Figlio SpA
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Angelo Cremona e Figlio SpA
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Priority to EP94201351A priority Critical patent/EP0627285B1/de
Publication of EP0500161A2 publication Critical patent/EP0500161A2/de
Publication of EP0500161A3 publication Critical patent/EP0500161A3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D11/00—Combinations of several similar cutting apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/40—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
    • B26D1/405—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member for thin material, e.g. for sheets, strips or the like
    • 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
    • B27G1/00—Machines or devices for removing knots or other irregularities or for filling-up holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L5/00—Manufacture of veneer ; Preparatory processing therefor
    • B27L5/08—Severing sheets or segments from veneer strips; Shearing devices therefor; Making veneer blanks, e.g. trimming to size

Definitions

  • CH 354890 discloses a transverse cutting apparatus in which cutting means comprises two side-by-side transverse blades. If the sheet is wide, then the two blades are operated simultaneously. If the sheet is narrower than one blade, only one blade is operated.
  • a method of cutting as mentioned above is substantially the only one used at present and the only palliative found in the known art is reuse of the large quantity of transverse strips of scrap for low quality applications or production of chipboard or the like.
  • the general purpose of the present invention is to obviate the above mentioned shortcomings by supplying a method and a machine for cutting veneer in sheets which would reject defective parts with minimal wood waste.
  • a cutting station indicated as a whole by reference number 10 comprises in accordance with the present invention conveyor belts supplying a veneer strip 12 (arriving from veneer cutting machines of known type and hence not shown) in front of known systems 13 of detection of specific zones of the strip such as those containing defects.
  • Said defect detection systems can for example comprise telecameras, transparency or reflection sensors or the like, as easily imagined by those skilled in the art, to supply information on the presence and position of defects such as for example holes in the veneer transiting opposite them.
  • Such systems of defect detection of the known art being well known to those skilled in the art they are not described further.
  • the means 14 comprise a circular shear 20 driven to cut the veneer in two parallel strips while the means 15 comprise, as better seen in FIG. 3, a rotary-blade cutter made up of blade units consisting of two blades 21 and 22 arranged side by side to rotate coaxially between bucking rollers 23 and 24 by motors 25 and 26 respectively having position sensors.
  • Axial sliding is controlled by a double action piston 28 driven hydraulically through the ducts 40, 54 by a hydraulic control unit 29 connected to electronic processing and control means 19.
  • an axially sliding clutch 30 having a spring 31, e.g. the Melville type, which usually holds it in engagement of the two blades (blades brought near).
  • a spring 32 e.g. the Melville type, which usually holds it in engagement of the two blades (blades brought near).
  • Another spring 32 weaker than the spring 31, placed in the piston 28, maintains axial tension of the blades.
  • FIG. 4 shows schematically an example of an embodiment of the axial clutch 30.
  • integral with the blade 21 is a supporting and containing structure 46 in which is inserted in a sliding manner a shaft 47 integral with the blade 22. Reciprocal rotation between the structure 46 and the shaft 47 is permitted by bearings 48 and 49.
  • the spring 31 pushes between an element 50 integral with the shaft 47 and an element 51 rotating with the shaft 47, sliding coaxially thereto and butted axially on the structure 46 with an interposed bearing 52.
  • the bearing 48 is of known type permitting mutual axial translation of the parts between which it is placed.
  • selection means 16 selectively sending the cut sheets to an automatic stacker 18 and to a scrap bin 17.
  • the selection means 16 are the vacuum type with top conveyor belt 33. Selection is performed separately in front of each blade 21 and 22 and is actuated by suckers 34 and 35. When one of the suckers is operated the wood sheet passing under it after leaving the cutter remains in adherence to the top belt 33, which deposits it on a double belt 36 for conveyance to the stacker 18 On the contrary, if the sucker is not operated the corresponding product leaving the cutter falls freely in the scrap bin 17.
  • Said selectors are of the known art and therefore not further described nor shown.
  • the stacker 18 can be of any type of the known art.
  • a stacker comprising a top belt 37 which, by a vacuum method of the type described for the selector 16, conveys the wood sheets to deposit them in piles selected in accordance with the dimensions of the sheets and which form on the vertically movable tables with full width 38 or halved width 39 for the full width sheets 41 or half width sheets 42 respectively.
  • All the various parts of the station are controlled and commanded to operate substantially as described below by electronic processing and control means 19, e.g. provided by programmed logics such as a microprocessor of the known art programmed in accordance with the description given below and optionally interconnected to a personal computer or the like.
  • electronic processing and control means 19 e.g. provided by programmed logics such as a microprocessor of the known art programmed in accordance with the description given below and optionally interconnected to a personal computer or the like.
  • the control device 19 in addition to processing the data from the sensor and synchronizing the movements of the various devices, commands coupling or not of the two blades of the transverse cutter depending on requirements.
  • the device 19 commands the control unit 29 to supply fluid to the piston through the duct 54.
  • the piston moves the blade 22 axially away from the blade 21, thus disengaging the clutch 30 and permitting the two motors 25 and 26 to rotate the respective blade independently with independent speeds.
  • control device 19 To again engage the blades so that they behave substantially as a single blade the control device 19 first resynchronizes them electronically, putting the motors in step (by means of the signals emitted by their position sensors), so that the blades are rearranged as much as possible with parallel faces, and then commands the control unit 29 to supply the piston 28 with a fluid counterpressure through the duct 40, thus reconnecting the mechanical clutch 30 between the blades.
  • the cutting station described above receives on its conveyors 11 an unbroken strip 12 of wood veneer.
  • the sensor 13 scans the veneer in transit beneath it and sends corresponding signals to the control device 19.
  • the possible conditions which can occur are 'no defect', 'defect on the right half of the veneer', 'defect on the left half of the veneer', 'defect on both halves of the veneer'.
  • the distance between the vertical line of the sensor and the shear 14 permits the processing system 19 to select the best plan for minimizing wood scrap before the zone involved reaches said shear.
  • the system decides whether to start the longitudinal cut or not and whether to perform a transverse cut on the entire width of the veneer or only on one half of it.
  • FIG. 5 shows schematically a possible cutting situation in which the parts of the veneer to be scrapped are identified by oblique lines.
  • the control means 19 activate the longitudinal shear 20 and remove the defect, commanding the blade 21 or 22 corresponding to the defective half so as to remove a strip with the defect, which will be scrapped by the selector means 16. In this manner the half free of defects is not uselessly scrapped as would happen by the known art but there is produced a wood sheet of half width as indicated by 42.
  • the longitudinal cut can be maintained until a defect free section of wood is detected for a length of veneer sufficient to justify obtaining a full width sheet without creating a preceding half sheet too short.
  • a defect free section of wood is detected for a length of veneer sufficient to justify obtaining a full width sheet without creating a preceding half sheet too short.
  • the section of veneer indicated by 44 in FIG. 5 would be acceptable.
  • the senor detects defects affecting both halves of the veneer, e.g. as indicated at 45, the entire defective strip is removed by a double paired cut of the blades 21 and 22.
  • the blades 21 and 22 are commanded by the device 19 at intervals so as to always obtain sheets, halved or not, of a length not exceeding a preset value.
  • the control system can also be programmed to optimize the positions of the transverse cuts so as not to obtain, as far as possible, sheets shorter than a preset value.
  • FIGS. 6 and 7 show schematically a different transverse cutter 15' usable in place of the cutter 15.
  • the cutter 15' comprises a shaft 56 on which are supported independently in a rotating manner two blade holder units each with a plurality 50, 60 of equally spaced radial blades as may be seen well in FIG. 7.
  • bucking roller 61 Parallel to the shaft 56 is a bucking roller 61 on which slides the veneer 12.
  • Each blade holder 57 and 58 is rotated by a motor 62 or 63 through a kinematic transmission, e.g: with a chain, 64 and 65.
  • the motors are mechanically engaged together through an electromechanical joint of the known art, e.g the electromagnetic type controlled by the device 19.
  • the cutting station operates as described above.
  • the joint 66 When cuts are to be made on half strips the joint 66 is disengaged and the motors drive the blade holders independently.
  • the device 19 first synchronizes the blades by controlling the motors 62, 63 through position sensors, similarly to the motors of the cutter 15, and then operates the clutch 66 so that the blades of the two blade holders rotate integrally and with mated cutting edges.
  • FIG. 7 shows three blades for each blade unit, as a compromise between cutting speed and manufacturing cost it is also possible to use cutters with a different number of blades.
  • connection means between the blades of the cutters 15 or 15' can be provided differently than described schematically or could even be replaced by only electronic synchronization of the rotation of the respective motors.
  • the sheets emerging from the cutters can be accumulated in a manner different from that shown in the stacker 18, e.g. by selecting them in larger piles.
  • the actual cutting plan can vary depending on which cutting parameter it is intended to favour. For example, it may be preferred to maximize the length of the sheets, even if they are half width, rather than the number of full length but shorter sheets, etc.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Wood Veneers (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Claims (22)

  1. Verfahren zum Schneiden von Platten (41, 42) aus einem kontinuierlich zugeführten Holzfurnierstreiten (12), bestehend aus den folgenden Schritten:
    - Schneiden von Holzplatten (41, 42) ganzer Breite mit einer vorgegebenen Länge aus dem Furnierstreifen (12) bis eine bestimmte Stelle mit einem vorgegebenen Merkmal, wie beispielsweise einem Defekt (43), an dem Furnierstreifen (12) festgestellt wird, wobei in diesem Moment ein Längsschneider (14, 20) tätig wird, um den Furnierstreifen (12) auf der Länge dieser spezifischen Stelle in zwei Streifen halber Breite zu schneiden,
    - anschließend erfolgt unter Verwendung eines Querschneiders (15) ein quer verlaufender Schnitt über die ganze Breite des Furnierstreifens (12) vor (gesehen von der Zufuhrrichtung des Furnierstreifens 12) der spezifischen Stelle mit dem vorgegebenen Merkmal, und, wenn der Längsschneider in dem Bereich der spezifischen Stelle in Gang gesetzt wird, entsteht eine Verbindung mit dem Beginn eines Längsschnitts, der den Furnierstreifen (12) in zwei Streifen halber Breite teilt;
    - anschließend erfolgt unter Verwendung eines Querschneiders (15) ein zweiter quer verlaufender Schnitt über die ganze Breite des Furnierstreifens (12) hinter der spezifischen Stelle mit dem vorgegebenen Merkmal und es entsteht eine Verbindung mit dem Ende des gegebenenfalls vorhandenen Längsschnitts, dadurch gekennzeichnet, daß
    - bei Feststellung durch das Steuerelement (19) der Querschneider (15) einen quer verlaufenden Schnitt durch nur eine Hälfte des Furnierstreifens durchführt und
    - das Steuerelement (19) spezifische Stellen auf beiden Hälften des Streifens (12) erkennt, so daß
    - in dem Fall, in dem nur eine Hälfte des Streifens mit dem vorgegebenen Merkmal behaftet ist, das Steuerelement (19) den Querschneider (15) aktiviert, um einen quer verlaufenden Schnitt lediglich über die Streifenhälfte mit der spezifischen Stelle auszuführen;
    - in dem Fall, in dem die spezifische Stelle mit dem vorgegebenen Merkmal beide Hälften des Furnierstreifens (12) bedeckt, die gesamte spezifische Stelle durch einen doppelten Querschnitt über die ganze Breite entfernt wird, ohne daß der Längsschneider (14, 20) über die Länge der spezifischen Stelle unbedingt aktiviert werden muß;
    - der einmal begonnene Längsschnitt fortgesetzt wird bis ein Querschnitt über die ganze Breite erfolgt.
  2. Vorrichtung (10) zum Schneiden von Platten (41, 42) aus einem kontinuierlich zugeführten Holzfurnierstreifen (12), bestehend aus einem quer (zu einem Zufuhrweg des Furnierstreifens (12)) laufenden Schneider (15), der durch ein Steuerelement (19) gesteuert wird, um Platten (41) mit einer vorgegebenen Länge zu erhalten, und Sensoren (13) zur Erkennung einer Vielzahl spezifischer Stellen auf dem Streifen (12) mit vorgegebenen Merkmalen, wobei das Steuerelement (19) ein Steuersignal von dem Sensor (13) erhält, um eine Stelle mit einer derartigen Vielzahl auszuwählen und zu erkennen, ob die ausgewählte Stelle sich entweder auf einer Hälfte des Streifens oder auf beiden Hälften befindet, wobei das Steuerelement (19) den Querschneider (15) zum Schneiden des Streifens quer stromauf- oder -abwärts von der ausgewählten spezifischen Stelle veranlaßt, und weiterhin bestehend aus einem Längsschneider (14) zum Schneiden des Streifens (12) in Längsrichtung in zwei Hälften, dadurch gekennzeichnet, daß der Querschneider (15) zwei Klingeneinheiten (21, 22; 57, 58) jeweils zum Schneiden einer halben Breite des Streifens (12) aufweist, wobei das Steuerelement (19) die Klingeneinheiten entweder synchron steuert, um zwei Schnitte zu erzeugen, die einen kontinuierlichen Querschnitt bilden, oder jede Klingeneinheit unabhängig voneinander steuert, um nur einen Schnitt zu erzeugen, wobei der Längsschneider (14) zwischen den beiden Klingeneinheiten (21, 22; 57, 58) in Querrichtung liegt.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die einzelnen Klingeneinheiten (21, 22; 57, 58) nebeneinander auf der gleichen Linie über dem Streifen angeordnet sind.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die einzelnen Klingeneinheiten (21, 22; 57, 58) Betriebselemente mit Synchronisierungsvorrichtung aufweisen, um gemeinsam einen kontinuierlichen Schnitt entlang der gesamten Breite des Streifens derart auszuführen, daß ebenfalls ein vollständiger quer verlaufender Schnitt erzeugt wird.
  5. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Längsschneider (14) zumindest einen Tellerschneider (20) aufweist.
  6. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Querschneider (15) eine drehbare Längsachse aufweist.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Schneider (15) eine Drehklinge (21, 22) mit einer Achse in einer Mittelstellung und mit zwei gegenüberliegenden Rändern aufweist, um zwischen den Gegendruckrollen (23, 24) zu rotieren, wobei der zu schneidende Streifen zwischen einer Gegendruckrolle (24) und der Klinge (21, 22) hindurchgeführt wird.
  8. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die einzelnen Klingeneinheiten (21, 22; 57, 58) drehbare Längsachsen haben.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Klingeneinheiten eine Drehklinge (21, 22) mit einer Achse in Mittelstellung und mit zwei gegenüberliegenden Rändern aufweisen, um zwischen den Gegendruckrollen (23, 24) zu rotieren, wobei der zu schneidende halbe Streifen zwischen einer Gegendruckrolle (24) und der Klinge (21, 22) hindurchgeführt wird.
  10. Vorrichtung nach Anspruch 4 und Anspruch 8, dadurch gekennzeichnet, daß die Synchronisierungsvorrichtung eine mechanische Kupplung (30, 66) zum wechselseitigen Kuppeln der Drehachsen der einzelnen Klingeneinheiten (21, 22; 57, 58) aufweist.
  11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß die mechanische Kupplung (30) Zähne (53, 55) an den gegenüberliegenden Enden der einzelnen Klingeneinheiten (21, 22) aufweist, die bei wechselseitiger axialer Annäherung der Klingeneinheiten gegenseitig ineinandergreifen.
  12. Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß die einzelnen Klingeneinheiten durch eine elastische Vorrichtung (31) in gegenseitiger Nähe gehalten werden, wobei die von dem Steuerelement (19) gesteuerte Auslösevorrichtung (28) das selektive axiale Zurückziehen der einzelnen Klingeneinheiten gegen die Wirkung der elastischen Vorrichtung veranlaßt.
  13. Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß die Auslösevorrichtung zwischen zwei einzelnen Klingeneinheiten einen Hydrokolben (28) für die Bewegung gegen die Wirkung einer Feder (32) aufweist, die an einem Ende einer der beiden einzelnen Klingeneinheiten angeordnet ist.
  14. Vorrichtung nach Anspruch 3 und Anspruch 9, dadurch gekennzeichnet, daß die einzelnen Klingeneinheiten gemeinsame Gegendruckrollen (23, 24, 61) aufweisen.
  15. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß stromabwärts von dem Schneider ein Wahlschalter (16) angeordnet der zwischen einem Ausschußweg (17) und einem Auslaßweg (36) für die geschnittenen Streifenteile wählt.
  16. Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß der Wahlschalter (16) eine Fördervorrichtung mit oberem Vakuumband (33) aufweist, das zu dem Auslaßweg führt.
  17. Vorrichtung nach Anspruch 15, dadurch gekennzeichnet, daß am Ende des Auslaßwegs (36) eine Stapelvorrichtung (18) zum Stapeln der Holzplatten auf getrennten Stapeln je nach Größe der Platten angeordnet ist.
  18. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Querschneider (15) ein Vielzahl von radial um die drehbare Längsachse angeordneten Klingen (59) aufweist, die sich nacheinander in die Nähe einer Gegendruckrolle (61) bewegen, wobei der zu schneidende Streifen zwischen der Klinge (59) und der Rolle (61) hindurchgeführt wird.
  19. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die einzelnen Klingeneinheiten eine Vielzahl von radial um die drehbare Längsachse angeordneten Klingen (59) aufweisen, die sich nacheinander in die Nähe einer Gegendruckrolle (61) bewegen, wobei der zu schneidende Streifen zwischen der Klinge (59) und der Rolle (61) hindurchgeführt wird.
  20. Vorrichtung nach Anspruch 3 und Anspruch 19, dadurch gekennzeichnet, daß die einzelnen Klingeneinheiten gemeinsame Gegendruckrollen (61) aufweisen.
  21. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß die Synchronisierungsvorrichtung eine auskuppelbare mechanische Kupplung (66) zwischen den Wellen der Rotationsmotoren einer jeden einzelnen Klingeneinheit aufweist.
  22. Vorrichtung nach Anspruch 21, dadurch gekennzeichnet, daß die auskuppelbare mechanische Kupplung (66) eine elektromechanische Kupplung ist.
EP92200356A 1991-02-12 1992-02-10 Bogenschneidmaschine für geschältes Holzfurnier Expired - Lifetime EP0500161B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94201351A EP0627285B1 (de) 1991-02-12 1992-02-10 Vorrichtung zum Querschneiden von Holzfurnier

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI910354A IT1249595B (it) 1991-02-12 1991-02-12 Stazione di taglio in fogli per sfogliati di legno
ITMI910354 1991-02-12

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP94201351.7 Division-Into 1994-05-11

Publications (3)

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EP0500161A2 EP0500161A2 (de) 1992-08-26
EP0500161A3 EP0500161A3 (en) 1993-02-24
EP0500161B1 true EP0500161B1 (de) 1997-05-02

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EP94201351A Expired - Lifetime EP0627285B1 (de) 1991-02-12 1992-02-10 Vorrichtung zum Querschneiden von Holzfurnier
EP92200356A Expired - Lifetime EP0500161B1 (de) 1991-02-12 1992-02-10 Bogenschneidmaschine für geschältes Holzfurnier

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EP94201351A Expired - Lifetime EP0627285B1 (de) 1991-02-12 1992-02-10 Vorrichtung zum Querschneiden von Holzfurnier

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EP (2) EP0627285B1 (de)
AT (2) ATE174251T1 (de)
DE (2) DE69227842T2 (de)
ES (2) ES2127881T3 (de)
IT (1) IT1249595B (de)

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US5960104A (en) * 1996-08-16 1999-09-28 Virginia Polytechnic & State University Defect detection system for lumber
EP1750913A2 (de) 2004-04-15 2007-02-14 Miller Veneers, Inc. Verfahren und vorrichtung zum schneiden von furnierblättern von einem messerfurnierblock
US9050735B2 (en) 2006-06-20 2015-06-09 Danzer Services Schweiz Ag Automatic clipping line
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CN102350713B (zh) * 2011-08-01 2014-04-02 济南德佳机器控股有限公司 物料优选加工设备及方法

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GB692783A (en) * 1950-02-03 1953-06-17 Marvin Hart Improvements in the production of wood veneers
US2928305A (en) * 1957-01-14 1960-03-15 Prentice Machine Works Inc Veneer clipper for cutting measured lengths with means responsive to feed of work to regulate the cutting cycle
CH353890A (de) * 1957-09-05 1961-04-30 Mueller Ag Furnierschere
US2942635A (en) * 1959-01-16 1960-06-28 Roy C Horne Method of reconstituting lumber and product thereof
US3165961A (en) * 1962-11-30 1965-01-19 Weyerhaeuser Co Apparatus for automatically cutting defective veneer sheets
CH467658A (it) * 1968-02-02 1969-01-31 Saffa Spa Taglierina per assicelle
US3808925A (en) * 1973-03-12 1974-05-07 Durand Machine Co Ltd Rotary veneer clipper
JPS6246601A (ja) * 1985-08-26 1987-02-28 橋本電機工業株式会社 細幅長尺単板の連続自動処理装置
IT206331Z2 (it) * 1985-09-25 1987-08-10 Cremona Angelo & Figlio Taglierina rotante perfezionata per materiali in foglia, in particolare sfogliati di legno.
IT1228658B (it) * 1989-02-10 1991-06-27 Cremona Angelo & Figlio Dispositivo per la sezionatura ed l'accatastamento di rivette in legno.
JP2706332B2 (ja) * 1989-11-10 1998-01-28 三菱重工業株式会社 回転ドラム式切断装置
FI86818C (fi) * 1990-12-28 1992-10-26 Raute Oy Avskaerare
FI87431C (fi) * 1991-06-26 1993-01-11 Raute Oy Anordning foer kapning av faner

Also Published As

Publication number Publication date
ITMI910354A1 (it) 1992-08-12
ES2127881T3 (es) 1999-05-01
EP0627285A3 (de) 1995-09-06
EP0500161A3 (en) 1993-02-24
ES2101794T3 (es) 1997-07-16
DE69219381T2 (de) 1997-11-20
EP0500161A2 (de) 1992-08-26
ITMI910354A0 (it) 1991-02-12
DE69227842D1 (de) 1999-01-21
DE69219381D1 (de) 1997-06-05
EP0627285A2 (de) 1994-12-07
EP0627285B1 (de) 1998-12-09
ATE152390T1 (de) 1997-05-15
ATE174251T1 (de) 1998-12-15
IT1249595B (it) 1995-03-09
DE69227842T2 (de) 1999-04-29

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