EP0088336B1 - Apparatus for the manufacture of plane articles of wood such as boards - Google Patents

Apparatus for the manufacture of plane articles of wood such as boards Download PDF

Info

Publication number
EP0088336B1
EP0088336B1 EP83101974A EP83101974A EP0088336B1 EP 0088336 B1 EP0088336 B1 EP 0088336B1 EP 83101974 A EP83101974 A EP 83101974A EP 83101974 A EP83101974 A EP 83101974A EP 0088336 B1 EP0088336 B1 EP 0088336B1
Authority
EP
European Patent Office
Prior art keywords
bending
boards
wood
pressure surface
manufacture
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.)
Expired
Application number
EP83101974A
Other languages
German (de)
French (fr)
Other versions
EP0088336A1 (en
Inventor
Linck Maschinenfabrik Und Eisengiesserei "Gatterlinck" Gebruder
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.)
Gebrueder Linck GmbH and Co KG Gatterlinck Maschinen Fabrik
Original Assignee
Gebrueder Linck GmbH and Co KG Gatterlinck Maschinen Fabrik
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 Gebrueder Linck GmbH and Co KG Gatterlinck Maschinen Fabrik filed Critical Gebrueder Linck GmbH and Co KG Gatterlinck Maschinen Fabrik
Priority to AT83101974T priority Critical patent/ATE17094T1/en
Publication of EP0088336A1 publication Critical patent/EP0088336A1/en
Application granted granted Critical
Publication of EP0088336B1 publication Critical patent/EP0088336B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27H—BENDING WOOD OR SIMILAR MATERIAL; COOPERAGE; MAKING WHEELS FROM WOOD OR SIMILAR MATERIAL
    • B27H1/00—Bending wood stock, e.g. boards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/005—Tenderising, e.g. by incising, crushing

Definitions

  • the invention relates to a device for the production of flat wood products, such as boards, which are separated from the two opposite sides of a longitudinally moved squared timber by at least one oscillating knife.
  • the invention is therefore based on the object of designing a device of the type mentioned at the outset in such a way that curvatures of the wood products caused by production are largely eliminated.
  • a straightening bending device is arranged immediately behind each knife, which has an adjustable bending roller and on the other side of the wood product has a rotating counter-tool with a flexible pressure surface, the flexible pressure surface being driven in such a way that it Severing a pull on the wood products.
  • the bending roller Since the wood products separated without cutting enter directly and continuously between the bending roller and the driven flexible pressure surface and since the bending roller is adjustable to change the bending effect, it is achieved that the wood products are obtained in a straight form.
  • the tensile force exerted by the straightening bending device on the wood products during the severing process has a favorable influence on the severing process; the risk that the separation gap will run ahead in an uncontrolled manner during the separation process is particularly excluded at the end of the separation process. Without the pulling effect, the separating gap could largely follow the wood fiber direction shortly before the end of the squared timber and thereby take an undesirable lateral course.
  • the device according to the invention enables the parameters of the straightening bending process to be adapted quickly and easily to the respective need, so that even with very different influencing variables it is ensured that the wood products are obtained in a straight form.
  • a bending device for wood which has an adjustable bending roller and on the other side of the workpiece to be bent, has an endlessly rotating, flexible link chain as a counter tool, is known (US Pat. No. 1,783,187).
  • this known device only serves to give originally straight wooden workpieces a predetermined curvature. This device is therefore neither suitable nor intended to be used in direct connection with a device for producing wood products which have been separated without cutting and which are to be produced in a straight form.
  • the device shown in FIG. 1 is used to separate boards 10 or similar flat wood products from a squared timber produced from a log 19 on both sides.
  • the log 19 is advanced in its longitudinal direction by transport devices (not shown) and smoothly milled on both its opposite sides by milling cutters 20.
  • a board 10 is cut off on both sides by knives 21 without cutting.
  • the knives 21 perform oscillatory movements.
  • a pressing tool 22 presses in the vicinity of the cutting edge of the knife 21 against the outside of the wood, as a result of which the severing process favorably influenced and at the same time an exact guidance of the wooden trunk 19 or the model or squared timber produced therefrom is achieved.
  • a belt reel 2 is rotatably mounted in the machine frame (not shown) of each of the two straightening bending devices. It is driven by a preferably speed-controllable motor arranged in the machine frame.
  • a second belt reel 5 is rotatably mounted on the end of a swivel arm 7 mounted in the machine frame.
  • a hydraulic cylinder 8 supported on the machine frame is articulated with its piston rod on the swivel arm 7.
  • An endless belt 9 runs over the belt rollers 2 and 5 and, in the exemplary embodiment shown, is designed as a rubber belt with a fabric insert.
  • the upper run of the belt 9 forms a continuously running, flexible pressure surface for the boards 10 or the like to be bent.
  • the curved board 10 is pressed against the belt 9 by a bending roller 11.
  • the bending roller 11 is rotatably mounted on an arm 12 pivotably mounted in the machine frame, which is pressed by means of a hydraulic cylinder 13 which is also supported on the machine frame.
  • the hydraulic cylinder 8 gives the belt 9 a predetermined tension, as a result of which the contact pressure for the board 10 acting between the belt 9 and the bending roller 11 is set.
  • the wrap angle between the board 10 and the bending roller 11 is changed. From the coordination of these two influencing variables, the bending effect is obtained, which is set so that the original curvature of the board 10 is eliminated, so that a straight board is obtained.
  • the straightening bending device shown in greatly simplified form in FIG. 1 differs from the straightening bending device according to FIG. 1 only in that the continuous, flexible pressure surface for the board 10 is not formed by a belt 9, but by the tread 17 of a hollow tire 18 or by an elastic roller which, like the belt 9, can be driven by a motor.
  • the bending roller 11 is adjustable by a cylinder 13 as described.
  • the internal pressure of the hollow tire 18 is expediently changed.
  • the belt rollers 2 or the hollow tire 18 are driven in such a way that the boards 10 are moved away from the separation point under tension, which results in a favorable influence on the separation process.
  • a straightening bending device is preferably assigned to each knife 21 in the manner shown in FIG. 1.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Eyeglasses (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Details Of Garments (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Manufacture Of Wood Veneers (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

In a device for producing flat boards separated from a square timber trunk by blades in a non-cutting manner a straightening device is provided for each blade. Each straightening device includes an adjustable bending roll mounted at one side of the board separated from the trunk in a curved state and a rotatable flexible element which forms at the side of the board opposite to the bending roll a continuous flexible pressure surface upon rotation of the flexible element.

Description

Die Erfindung betrifft eine Vorrichtung zur Herstellung von flachen Holzerzeugnissen, wie Brettern, die von den beiden gegenüberliegenden Seiten eines längsbewegten Kantholzes durch mindestens ein schwingend bewegtes Messer spanlos abgetrennt werden.The invention relates to a device for the production of flat wood products, such as boards, which are separated from the two opposite sides of a longitudinally moved squared timber by at least one oscillating knife.

Bei einer bekannten Vorrichtung (DE-PS 2514901) werden die außenliegenden Holzabschnitte des in seiner Längsrichtung angetriebenen Kantholzes durch mehrere gestaffelte, zu einer Schwingbewegung angetriebene Messer spanlos in Bretter oder ähnliche flache Holzerzeugnisse zerlegt. Diese Holzerzeugnisse haben beim spanlosen Abtrennvorgang, bei dem sie einer Biegung unterworfen wurden, eine bleibende Krümmung erhalten, die bei der Verwendung der Holzerzeugnisse zumindest hinderlich ist.In a known device (DE-PS 2514901), the outer wooden sections of the squared timber driven in its longitudinal direction are broken down into boards or similar flat timber products by a plurality of staggered knives driven to oscillate. These wood products have been given a permanent curvature in the non-cutting cutting process in which they have been subjected to bending, which is at least a hindrance to the use of the wood products.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art so auszubilden, daß herstellungsbedingte Krümmungen der Holzerzeugnisse weitgehend beseitigt werden.The invention is therefore based on the object of designing a device of the type mentioned at the outset in such a way that curvatures of the wood products caused by production are largely eliminated.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß unmittelbar hinter jedem Messer eine Richtbiegevorrichtung angeordnet ist, die eine verstellbare Biegewalze und auf der anderen Seite des Holzerzeugnisses ein umlaufendes Gegenwerkzeug mit einer flexiblen Andruckfläche aufweist, wobei die flexible Andruckfläche in der Weise angetrieben ist, daß sie beim Abtrennen einen Zug auf die Holzerzeugnisse ausübt.This object is achieved in that a straightening bending device is arranged immediately behind each knife, which has an adjustable bending roller and on the other side of the wood product has a rotating counter-tool with a flexible pressure surface, the flexible pressure surface being driven in such a way that it Severing a pull on the wood products.

Da die spanlos abgetrennten Holzerzeugnisse unmittelbar und kontinuierlich zwischen die Biegewalze und die angetriebene flexible Andruckfläche einlaufen und da die Biegewalze zur Veränderung der Biegewirkung verstellbar ist, wird erreicht, daß die Holzerzeugnisse in gerader Form anfallen. Durch die Zugkraft, die die Richtbiegevorrichtung auf die Holzerzeugnisse während des Abtrennvorgangs ausübt, wird ein günstiger Einfluß auf den Abtrennvorgang ausgeübt; die Gefahr, daß der Trennspalt beim Abtrennvorgang in unkontrollierter Weise vorausläuft, wird insbesondere auch am Ende des Abtrennvorgangs ausgeschlossen. Ohne die Zugwirkung könnte der Trennspalt kurz vor dem Ende des Kantholzes weitestgehend der Holzfaserrichtung folgen und dadurch einen unerwünschten seitlichen Verlauf nehmen.Since the wood products separated without cutting enter directly and continuously between the bending roller and the driven flexible pressure surface and since the bending roller is adjustable to change the bending effect, it is achieved that the wood products are obtained in a straight form. The tensile force exerted by the straightening bending device on the wood products during the severing process has a favorable influence on the severing process; the risk that the separation gap will run ahead in an uncontrolled manner during the separation process is particularly excluded at the end of the separation process. Without the pulling effect, the separating gap could largely follow the wood fiber direction shortly before the end of the squared timber and thereby take an undesirable lateral course.

Da das Holzerzeugnis beim Biegevorgang auf seiner der Biegewalze abgekehrten Außenseite in ständiger Druckberührung mit der flexiblen Andruckfläche bleibt, wird auch bei sehr schnell ablaufenden Abtrenn- und Biegevorgängen jede Beschädigung an der Biegeaußenseite verhindert. Die praktisch weitgehend unbegrenzte Biegegeschwindigkeit ermöglicht eine vollständige Anpassung an die verhältnismäßig hohen Arbeitsgeschwindigkeiten des spanlosen Herstellungsvorgangs, so daß die Vorteile der hohen Arbeitsgeschwindigkeit dieses Herstellungsverfahrens voll ausgenützt werden können.Since the wood product remains in constant pressure contact with the flexible pressure surface on its outside facing away from the bending roller during the bending process, any damage to the outside of the bending is prevented even with very rapid separating and bending processes. The practically largely unlimited bending speed enables a complete adaptation to the relatively high working speeds of the non-cutting manufacturing process, so that the advantages of the high working speed of this manufacturing process can be fully exploited.

Da die herstellungsbedingte Krümmung des Holzerzeugnisses von vielen Einflußgrößen abhängt, wie Dicke, Holzart, Holzfeuchtigkeit und Bedingungen des Abtrennvorgangs, fallen die Holzerzeugnisse mit unterschiedlicher Krümmung an. Die erfindungsgemäße Vorrichtung gibt die Möglichkeit, die Kenngrößen des Richtbiegevorgangs rasch und einfach an den jeweiligen Bedarfsfall anzupassen, so daß auch bei sehr unterschiedlichen Einflußgrößen sichergestellt ist, daß die Holzerzeugnisse in gerader Form anfallen.Since the production-related curvature of the wood product depends on many influencing factors, such as thickness, type of wood, wood moisture and conditions of the separation process, the wood products occur with different curvatures. The device according to the invention enables the parameters of the straightening bending process to be adapted quickly and easily to the respective need, so that even with very different influencing variables it is ensured that the wood products are obtained in a straight form.

Eine Biegevorrichtung für Holz, die eine verstellbare Biegewalze und auf der anderen Seite des zu biegenden Werkstücks eine endlos umlaufende, flexible Gliederkette als Gegenwerkzeug aufweist, ist bekannt (US-PS 1 783187). Diese bekannte Vorrichtung dient jedoch nur dazu, ursprünglich geraden Holzwerkstücken eine vorgegebene Krümmung zu geben. Diese Vorrichtung ist daher weder dazu geeignet noch vorgesehen, in unmittelbarer Verbindung mit einer Vorrichtung zur Herstellung von spanlos abgetrennten Holzerzeugnissen eingesetzt zu werden, die in gerader Form erzeugt werden sollen.A bending device for wood, which has an adjustable bending roller and on the other side of the workpiece to be bent, has an endlessly rotating, flexible link chain as a counter tool, is known (US Pat. No. 1,783,187). However, this known device only serves to give originally straight wooden workpieces a predetermined curvature. This device is therefore neither suitable nor intended to be used in direct connection with a device for producing wood products which have been separated without cutting and which are to be produced in a straight form.

Aus der GB-A-2 025 314 ist eine Vorrichtung bekannt, bei der mittels Messern, die an einer Messerwalze angebracht sind, Einschnitte an der Rückseite von Furnier ausgeführt werden, wobei das Furnier an der Vorderseite durch eine Andruckwalze gestützt wird. Hierbei wird das Furnier jedoch nicht gebogen oder gerichtet, sondern biegsam gemacht. Das Ausüben eines Zuges auf das Furnier ist dort nicht vorgesehen, zumal dies zu einem Einreißen des Furniers führen müßte.From GB-A-2 025 314 a device is known in which incisions are made on the rear side of veneer by means of knives which are attached to a knife roller, the veneer being supported on the front side by a pressure roller. Here, however, the veneer is not bent or straightened, but made flexible. There is no provision for pulling on the veneer there, especially since this should lead to tearing of the veneer.

Die Erfindung wird nachfolgend an Ausführungsbeispielen näher erläutert, die in der Zeichnung dargestellt sind. Es zeigt

  • Fig. 1 in vereinfachter Darstellungsweise eine Vorrichtung zur spanlosen Herstellung von flachen Holzerzeugnissen, mit jeweils einer der Abtrennvorrichtung unmittelbar nachgeordneten Richtbiegevorrichtung und
  • Fig. 2 in einer Teildarstellung eine gegenüber Fig. 1 abgewandelte Ausführungsform der Richtbiegevorrichtung, wobei das Gegenwerkzeug durch einen Hohlreifen gebildet wird.
The invention is explained in more detail below using exemplary embodiments which are illustrated in the drawing. It shows
  • Fig. 1 shows a simplified representation of a device for the non-cutting production of flat wood products, each with a straightening bending device immediately downstream of the separating device and
  • Fig. 2 in a partial representation of a modified from Fig. 1 embodiment of the directional bending device, wherein the counter tool is formed by a hollow tire.

Die in Fig. 1 gezeigte Vorrichtung dient dazu, von einem aus einem Baumstamm 19 erzeugten Kantholz auf beiden Seiten Bretter 10 oder ähnliche flache Holzerzeugnisse spanlos abzutrennen. Der Holzstamm 19 wird durch (nicht dargestellte) Transporteinrichtungen in seiner Längsrichtung vorgeschoben und an seinen beiden gegenüberliegenden Seiten durch Fräser 20 glattgefräst. Von der so erhaltenen ebenen Außenfläche wird durch Messer 21 an beiden Seiten jeweils ein Brett 10 spanlos abgetrennt. Die Messer 21 führen hierzu Schwingbewegungen aus. Jeweils ein Andrückwerkzeug 22 drückt in der Nähe der Schneide der Messer 21 gegen die Holzaußenseite, wodurch der Abtrennvorgang günstig beeinflußt und zugleich eine genaue Führung des Holzstammes 19 bzw. des daraus hergestellten Modells oder Kantholzes erzielt wird.The device shown in FIG. 1 is used to separate boards 10 or similar flat wood products from a squared timber produced from a log 19 on both sides. The log 19 is advanced in its longitudinal direction by transport devices (not shown) and smoothly milled on both its opposite sides by milling cutters 20. From the flat outer surface thus obtained, a board 10 is cut off on both sides by knives 21 without cutting. For this purpose, the knives 21 perform oscillatory movements. In each case a pressing tool 22 presses in the vicinity of the cutting edge of the knife 21 against the outside of the wood, as a result of which the severing process favorably influenced and at the same time an exact guidance of the wooden trunk 19 or the model or squared timber produced therefrom is achieved.

Die spanlos abgetrennten Bretter 10, die - wie in Fig. 1 deutlich dargestellt - eine nach außen gerichtete Krümmung infolge des Abtrennvorgangs aufweisen, werden jeweils einer Richtbiegevorrichtung zugeführt und von dieser geradegerichtet, so daß gerade Bretter 10 die Vorrichtung verlassen. Im (nicht dargestellten) Maschinengestell jeder der beiden Richtbiegevorrichtungen ist eine Gurtrolle 2 drehbar gelagert. Sie wird von einem im Maschinengestell angeordneten, vorzugsweise drehzahlregelbaren Motor angetrieben. Eine zweite Gurtrolle 5 ist drehbar am Ende eines im Maschinengestell gelagerten Schwenkarms 7 gelagert. Ein sich am Maschinengestell abstützender Hydraulikzylinder 8 ist mit seiner Kolbenstange am Schwenkarm 7 angelenkt. Über die Gurtrollen 2 und 5 läuft ein endloser Gurt 9, der beim dargestellten Ausführungsbeispiel als Gummigurt mit einer Gewebeeinlage ausgeführt ist.The non-cutting boards 10, which - as clearly shown in FIG. 1 - have an outward curvature as a result of the cutting process, are each fed to a straightening bending device and straightened by this, so that boards 10 just leave the device. A belt reel 2 is rotatably mounted in the machine frame (not shown) of each of the two straightening bending devices. It is driven by a preferably speed-controllable motor arranged in the machine frame. A second belt reel 5 is rotatably mounted on the end of a swivel arm 7 mounted in the machine frame. A hydraulic cylinder 8 supported on the machine frame is articulated with its piston rod on the swivel arm 7. An endless belt 9 runs over the belt rollers 2 and 5 and, in the exemplary embodiment shown, is designed as a rubber belt with a fabric insert.

Das Obertrum des Gurts 9 bildet eine kontinuierlich laufende, flexible Andruckfläche für die zu biegenden Bretter 10 od. dgl. Das gekrümmt zugeführte Brett 10 wird durch eine Biegewalze 11 gegen den Gurt 9 gedrückt. Die Biegewalze 11 ist an einem im Maschinengestell schwenkbar gelagerten Arm 12 drehbar gelagert, der mittels eines sich ebenfalls am Maschinengestell abstützenden Hydraulikzylinders 13 angedrückt wird.The upper run of the belt 9 forms a continuously running, flexible pressure surface for the boards 10 or the like to be bent. The curved board 10 is pressed against the belt 9 by a bending roller 11. The bending roller 11 is rotatably mounted on an arm 12 pivotably mounted in the machine frame, which is pressed by means of a hydraulic cylinder 13 which is also supported on the machine frame.

Durch den Hydraulikzylinder 8 wird dem Gurt 9 eine vorgegebene Spannung erteilt, wodurch die zwischen dem Gurt 9 und der Biegewalze 11 wirkende Anpreßkraft für das Brett 10 eingestellt wird. Durch eine Verstellung der Biegewalze 11 mittels des Zylinders 13 wird der Umschlingungswinkel zwischen dem Brett 10 und der Biegewalze 11 verändert. Aus der Abstimmung dieser beiden Einflußgrößen ergibt sich die erzielte Biegewirkung, die so eingestellt wird, daß die ursprüngliche Krümmung des Bretts 10 beseitigt wird, so daß man ein gerades Brett erhält.The hydraulic cylinder 8 gives the belt 9 a predetermined tension, as a result of which the contact pressure for the board 10 acting between the belt 9 and the bending roller 11 is set. By adjusting the bending roller 11 by means of the cylinder 13, the wrap angle between the board 10 and the bending roller 11 is changed. From the coordination of these two influencing variables, the bending effect is obtained, which is set so that the original curvature of the board 10 is eliminated, so that a straight board is obtained.

Die in Fig. stark vereinfacht dargestellte Richtbiegevorrichtung unterscheidet sich von der Richtbiegevorrichtung nach Fig. 1 nur dadurch, daß die kontinuierliche, flexible Andruckfläche für das Brett 10 nicht von einem Gurt 9, sondern von der Lauffläche 17 eines Hohlreifens 18 oder durch eine elastische Walze gebildet wird, der ebenso wie der Gurt 9 durch einen Motor antreibbar ist. Auch hierbei ist die Biegewalze 11 wie beschrieben durch einen Zylinder 13 verstellbar. Um die Andruckverhältnisse zwischen der Biegewalze 11 und der Lauffläche 17 und den Umschlingungswinkel zwischen dem Brett 10 und der Biegewalze 11 unabhängig voneinander einstellen zu können, wird zweckmäßigerweise der Innendruck des Hohlreifens 18 verändert.The straightening bending device shown in greatly simplified form in FIG. 1 differs from the straightening bending device according to FIG. 1 only in that the continuous, flexible pressure surface for the board 10 is not formed by a belt 9, but by the tread 17 of a hollow tire 18 or by an elastic roller which, like the belt 9, can be driven by a motor. Here, too, the bending roller 11 is adjustable by a cylinder 13 as described. In order to be able to set the pressure ratios between the bending roller 11 and the tread 17 and the wrap angle between the board 10 and the bending roller 11 independently of one another, the internal pressure of the hollow tire 18 is expediently changed.

Der Antrieb der Gurtrollen 2 bzw. des Hohlreifens 18 erfolgt so, daß die Bretter 10 unter Zug von der Abtrennstelle wegbewegt werden, wodurch sich ein günstiger Einfluß auf den Abtrennvorgang ergibt.The belt rollers 2 or the hollow tire 18 are driven in such a way that the boards 10 are moved away from the separation point under tension, which results in a favorable influence on the separation process.

Wenn die Vorrichtung zum spanlosen Abtrennen von Brettern oder ähnlichen flachen Holzerzeugnissen auf jeder Seite mehrere gestaffelte Messer 21 aufweist, wird vorzugsweise jedem Messer 21 eine Richtbiegevorrichtung in der in Fig. 1 dargestellten Weise zugeordnet.If the device for cutting boards or similar flat wood products without cutting has a plurality of staggered knives 21 on each side, a straightening bending device is preferably assigned to each knife 21 in the manner shown in FIG. 1.

Claims (2)

1. An apparatus for the manufacture of flat wooden products, such as boards, which are separated in a chipless manner from the two opposite sides of a longitudinally moved scantling by at least one oscillatorily moved knife (21), characterised in that directly behind each knife (21) there is provided a straightening/bending device which comprises an adjustable bending roll (11) and, on the other side of the wooden, produkt (10), a revolving counter-tool (9, 17) with a flexible contact-pressure surface, the flexible contact-pressure surface being driven in such a way that it exerts a pull on the wooden products (10) during the separating process.
2. An apparatus as claimed in Claim 1, characterised in that the flexible contact-pressure surface is formed by the tread (17) of a hollow hoop (18) or by an elastic roller.
EP83101974A 1982-03-03 1983-03-01 Apparatus for the manufacture of plane articles of wood such as boards Expired EP0088336B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83101974T ATE17094T1 (en) 1982-03-03 1983-03-01 DEVICE FOR PRODUCTION OF FLAT WOOD PRODUCTS LIKE BOARDS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3207548A DE3207548C2 (en) 1982-03-03 1982-03-03 Device for the production of flat wood products such as boards
DE3207548 1982-03-03

Publications (2)

Publication Number Publication Date
EP0088336A1 EP0088336A1 (en) 1983-09-14
EP0088336B1 true EP0088336B1 (en) 1985-12-27

Family

ID=6157146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101974A Expired EP0088336B1 (en) 1982-03-03 1983-03-01 Apparatus for the manufacture of plane articles of wood such as boards

Country Status (7)

Country Link
US (1) US4503892A (en)
EP (1) EP0088336B1 (en)
AT (1) ATE17094T1 (en)
CA (1) CA1200181A (en)
DE (1) DE3207548C2 (en)
FI (1) FI70167C (en)
ZA (1) ZA831402B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988000517A1 (en) * 1986-07-10 1988-01-28 Wurster U. Dietz Gmbh U. Co. Maschinenfabrik Process and device for cutting up tree trunks into wood products without shavings
DE3623237A1 (en) * 1986-07-10 1988-01-21 Wurster & Dietz Gmbh U Co Masc Method and apparatus for chiplessly separating a treetrunk into wood products
DE3623235A1 (en) * 1986-07-10 1988-01-21 Wurster & Dietz Gmbh U Co Masc Method and apparatus for separating treetrunks into finished wood products
DE3701127A1 (en) * 1987-01-16 1988-07-28 Linck Masch Gatterlinck DEVICE FOR LEVELING BOARDS AND THE LIKE
FR2625130B1 (en) * 1987-12-28 1990-05-11 Martin Michel LONGITUDINAL WOOD SLICER AND SLICING DEVICE
DE3940614A1 (en) * 1989-12-08 1991-06-13 Linck Masch Gatterlinck METHOD FOR TURNING BOARDS AND THE LIKE
DE4035048A1 (en) * 1990-11-05 1992-05-07 Wurster & Dietz Maschf DEVICE FOR SEPARATING OR SLITING A RIGID CUT, IN PARTICULAR WOOD
DE4234236A1 (en) * 1992-10-10 1994-04-14 Linck Masch Gatterlinck Method and device for straightening wooden slats
US5419382A (en) * 1993-11-18 1995-05-30 Hartco Flooring Company Veneer flattening apparatus and method
DE4419682A1 (en) 1994-06-06 1995-12-07 Linck Masch Gatterlinck Method and device for producing wooden slats
US5816304A (en) * 1997-08-04 1998-10-06 Triangle Pacific Corporation Apparatus and method for increasing the flexibility of and straightening flooring strips

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE204181C (en) *
DE251490C (en) *
US689277A (en) * 1901-03-05 1901-12-17 Harvey L Beck Split-machine.
US1503784A (en) * 1922-04-08 1924-08-05 Commw Mfg Company Machine for producing rattan weaving strips
US1783187A (en) * 1927-03-11 1930-12-02 Charles W Elliott Wood-bending machine
US2336535A (en) * 1940-10-09 1943-12-14 Charles W Elliott Wood bending machine
FR1076268A (en) * 1953-02-27 1954-10-25 Improvements to installations for obtaining veneer lumber
US2815779A (en) * 1956-02-24 1957-12-10 Higgins Ind Inc Method of and apparatus for stretching and stress relieving lumber
NL259319A (en) * 1956-02-24
US2974697A (en) * 1958-01-10 1961-03-14 Elmendorf Res Inc Method and apparatus for making a veneer product
DE1899154U (en) * 1963-11-09 1964-08-20 Armin Elmendorf DEVICE FOR STRETCHING AND BENDING VENEER.
DE2514901C3 (en) * 1975-04-05 1979-01-04 Gebrueder Linck Maschinenfabrik Und Eisengiesserei Gatterlinck, 7602 Oberkirch Method and device for producing timber from round logs
DE2831016C2 (en) * 1978-07-07 1983-09-29 Meinan Machinery Works, Inc., Ohbu, Aichi Knife and pressure beam of a veneer peeling machine
US4061169A (en) * 1976-08-02 1977-12-06 Meinan Machinery Works, Inc. Apparatus for cutting off a thickness of wood or veneer from logs
FR2377875A1 (en) * 1976-08-02 1978-08-18 Meinan Machinery Works VENEER WOOD UNROLLER
US4234024A (en) * 1978-04-20 1980-11-18 Meinan Machinery Works, Inc. Veneer lathe
GB2025314B (en) * 1978-07-14 1982-11-24 Meinan Machinery Works Method of and apparatus for preventing curling of veneer

Also Published As

Publication number Publication date
ZA831402B (en) 1983-12-28
DE3207548C2 (en) 1984-02-23
CA1200181A (en) 1986-02-04
EP0088336A1 (en) 1983-09-14
ATE17094T1 (en) 1986-01-15
DE3207548A1 (en) 1983-09-22
US4503892A (en) 1985-03-12
FI830608L (en) 1983-09-04
FI830608A0 (en) 1983-02-24
FI70167C (en) 1986-09-15
FI70167B (en) 1986-02-28

Similar Documents

Publication Publication Date Title
DE2703222A1 (en) DEVICE FOR SAWING LUMBER WITH CURVED CUT
EP0088336B1 (en) Apparatus for the manufacture of plane articles of wood such as boards
EP0277591B1 (en) Apparatus for manufacturing thin boards
EP3124188A1 (en) Cutting device
DE3244393C1 (en) Process for the production of wood products processed on all sides, and device for carrying out the process
DE2605987C3 (en) Method and device for sawing wood
DE1024918B (en) Machine for making fur objects
AT507711A1 (en) DEVICE FOR FORMING GILLBARS, IN PARTICULAR FROM A MEAT MASS
EP0166299A2 (en) Device for cutting a tear strip
DE1704867A1 (en) Method and apparatus for producing a continuous belt from a rubber sheet or the like.
CH640771A5 (en) METHOD FOR SEPARATING COATED PANEL MATERIAL AND DEVICE FOR ITS IMPLEMENTATION.
DE1946549A1 (en) Method and device for trimming the side edges, in particular of conveyor belt blanks
DE2005040C3 (en) Cutting device for a machine for manufacturing sacks from a plastic tube
DE1660100C3 (en) Band knife splitting machine
DE1923495A1 (en) Drive device for advancing animal hides or other materials in web or sheet form in splitting machines
DE4127428A1 (en) DEVICE FOR CUTTING A TAPE IN PRODUCTION MACHINES FOR PRODUCTS
DE2745325A1 (en) HYDROMECHANICAL BELT EDGEING DEVICE
EP0793916A1 (en) Machine for removing a superficial layer from especially fish fillets
EP0504163B1 (en) Process for the rotary truing of planks and the like
EP0116606B1 (en) Device for cutting boards or similar objects
DE1461203A1 (en) Cutting and conveying device for sheet material
DE2359705C3 (en) Machine for wrapping objects
AT369788B (en) DEVICE FOR SPLITING ANIMAL SKINS
DE2831016C2 (en) Knife and pressure beam of a veneer peeling machine
EP0003839A1 (en) Strip of bags and method and device for the manufacture thereof

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH FR LI SE

17P Request for examination filed

Effective date: 19831001

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT CH FR LI SE

REF Corresponds to:

Ref document number: 17094

Country of ref document: AT

Date of ref document: 19860115

Kind code of ref document: T

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910118

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920331

Ref country code: CH

Effective date: 19920331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EAL Se: european patent in force in sweden

Ref document number: 83101974.0

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19950210

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19950321

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19950328

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19960301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19961129

EUG Se: european patent has lapsed

Ref document number: 83101974.0

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST