WO1992005020A1 - Device for the chip-free cutting of strips from square timber - Google Patents
Device for the chip-free cutting of strips from square timber Download PDFInfo
- Publication number
- WO1992005020A1 WO1992005020A1 PCT/EP1991/001457 EP9101457W WO9205020A1 WO 1992005020 A1 WO1992005020 A1 WO 1992005020A1 EP 9101457 W EP9101457 W EP 9101457W WO 9205020 A1 WO9205020 A1 WO 9205020A1
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- Prior art keywords
- wooden
- cutting edge
- timber
- guide surface
- cutting
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Classifications
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- 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
- B27L5/002—Wood or veneer transporting devices
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- 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
- B27L5/06—Cutting strips from a stationarily- held trunk or piece by a rocking knife carrier, or from rocking trunk or piece by a stationarily-held knife carrier; Veneer- cutting machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
Definitions
- the invention relates to a device for cutting wood lamellae without cutting from a square timber with a feed device which presses the square timber against an opposite wooden guide surface and conveys it in its longitudinal direction, and with a knife, the cutting edge of which runs obliquely at an angle to the conveying direction of the square timber and in one of the Thickness of the wooden lamella to be cut is parallel to the wooden guide surface.
- wood lamellae wood lamellae
- wood lamellae wood lamellae
- these wooden slats can also be called boards.
- a square timber or a beam preferably machined on all sides, is moved in its longitudinal direction along a timber guiding surface.
- this is the wooden guide surface arranged horizontally and the squared timber is pressed against the timber guide surface from above by the feed device.
- the feed device is usually an endlessly rotating, driven conveyor belt.
- the knife separating the wooden slats is arranged on the wooden guide surface in such a way that its cutting edge is at a distance from the wooden guide surface which corresponds to the thickness of the wooden slats to be separated.
- the cutting edge runs at an angle to the longitudinal direction of the wood, which is also the conveying direction. This creates a pulling cut.
- This small cross-section can no longer take over the lateral forces to be transferred from the wooden lamella to the squared timber; therefore the wood breaks out laterally at this point, so that the cutting edges of the separated wood lamella and / or the squared timber and thus the in wooden slat to be separated in the next pass.
- the object of the invention is therefore to design a device of the type mentioned in the introduction in such a way that lateral outbreaks of the wood are avoided when the lamella is cut from the squared timber.
- a lateral guide bar is arranged on the side edge of the wooden guide surface opposite the knife, that the guide bar extends in the conveying direction at least to the cutting edge and that the upper edge of the guide bar is at least approximately at the level of the cutting edge above the wooden guide surface.
- the guide bar extends at least to the cutting edge, the side surface of the squared timber and thus also the side edge of the wooden slat is laterally supported up to the point at which the wooden slat is only connected to the squared timber with a very small cross section. Since the lateral forces occurring due to the inclined cutting edge are fully supported and therefore no such lateral or transverse forces are transmitted between the wooden lamella and the squared timber, the wood does not break out at this point.
- the separated wooden lamella has an undamaged cutting edge, and the squared timber also has a clean, undamaged cutting edge, which then forms the cutting edge of the wooden lamella to be subsequently cut off.
- the feed device can be of simpler design. Since the lateral forces caused by the inclined position of the cutting edge no longer have to be absorbed by the feed device, the feed device can be of simpler design. Since the lateral forces no longer have a disruptive effect, the cutting edge can be arranged at a relatively small angle of preferably 10 to 30 ° to the conveying direction and thus to the direction of the guide bar. As a result, a predominantly pulling cut is achieved, which is favorable for the cutting quality that can be achieved and with regard to the required feed forces.
- a "pulling cut” is understood to mean a cutting process in which the feed direction is not perpendicular to the cutting edge but at an angle to it, ie the feed movement has a component of motion parallel to the cutting edge.
- the guide bar - seen against the conveying direction - projects beyond the knife. This ensures that not only is the cutting edge of the wooden lamella to be separated laterally supported in full height, but also that there is additional lateral support for the squared timber remaining after the wooden lamella has been cut off.
- the guide bar preferably ends at the cutting edge with its front end in the conveying direction.
- the upper edge of the guide bar is at a distance from the wooden guide surface, which is 1.2 to 1.7 times the distance from the cutting edge to the wooden guide surface.
- FIG. 1 is a greatly simplified side view of a device for cutting wood slats from a square timber without cutting
- Fig. 2 is an enlarged plan view of the wooden guide surface of the device of FIG. 1 with the knife and
- the device shown in greatly simplified form in a side view in FIG. 1 is used, from a squared timber 1, which is fed in the direction of arrow 2 (ie from right to left in FIG. 1), on the underside in each case of a wooden lamella 3 using non-cutting technology to cut off.
- a feed device 4 has an endlessly circulating belt 5 which is driven and runs over deflection rollers 6 and 7.
- the belt 5 is pressed against the top of the squared timber 1 by several pressure rollers 8 and takes the squared timber 1 along in its longitudinal direction. As a result, the conveying direction of the squared timber 1 is determined.
- a knife 10 is arranged on the wood guiding surface 9, the cutting edge 11 of which is arranged at an acute angle a to the longitudinal direction of the wood and thus to the conveying direction.
- the cutting edge 11 lies at a distance approximately corresponding to the thickness of the wooden lamella 3 to be cut above the wooden guide surface 9 and parallel to it.
- a counter pressure bar 12 Arranged below the cutting edge 11 is a counter pressure bar 12, the pressure edge 13 of which runs parallel to the cutting edge 11 and presses against the wooden lamella 3 to be separated from below in order to achieve a clean cut.
- the counter pressure bar 12 essentially prevents a tear from running ahead of the cutting edge 11. As indicated in FIG. 3, both the knife and the counter pressure bar 12 are adjustable.
- a lateral guide bar 14 is arranged, which extends in the longitudinal direction of the squared timber 1 and thus in the conveying direction essentially over the entire length of the knife 10. Seen opposite to the conveying direction 2, the guide bar projects over the knife 10. With its other end, which is at the front in the conveying direction, the guide bar 14 ends directly at the cutting edge 11.
- the upper edge 14b of the lateral guide bar 14 is at a distance from the wooden guide surface 9 which is slightly larger than the distance of the cutting edge 11 to the wooden guide surface 9; it is preferably 1.2 to 1.7 times.
- the guide bar 14 is received in a form-fitting manner in a longitudinal groove 15 of the wooden guide surface 9.
- the guide bar 14 forms an acute angle a with the cutting edge 11, which is in the range from 10 to 30 °.
- the lateral forces or transverse forces that occur during cutting, which act on the square timber 1 and on the separated wooden lamella 3, are very large compared to the feed force, depending on the size of the angle a of the knife 10. These lateral forces are completely absorbed by the lateral guide bar 14, in particular up to the point 16 (FIG. 2) at which the cutting edge 11 and the surface 14c of the guide bar 14 facing the square timber 1 converge.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Wood Veneers (AREA)
Abstract
Description
Vorrichtung zum spanlosen Abschneiden von Holzlamellen von einem KantholzDevice for the non-cutting cutting of wooden lamella from a square timber
Die Erfindung betrifft eine Vorrichtung zum spanlosen Abschneiden von Holzlamellen von einem Kantholz mit einer Vorschubeinrichtung, die das Kantholz gegen eine gegenüberliegende Holzführungsfläche drückt und in seiner Längsrichtung fördert, und mit einem Messer, dessen Schneidkante schräg im Winkel zur Förderrichtung des Kantholzes verläuft und in einem der Dicke der abzuschneidenden Holzlamelle entsprechenden Abstand parallel zur Holzführungsfläche liegt.The invention relates to a device for cutting wood lamellae without cutting from a square timber with a feed device which presses the square timber against an opposite wooden guide surface and conveys it in its longitudinal direction, and with a knife, the cutting edge of which runs obliquely at an angle to the conveying direction of the square timber and in one of the Thickness of the wooden lamella to be cut is parallel to the wooden guide surface.
Diese bekannten Vorrichtungen dienen dazu, in spanloser Schneidtechnik flache längliche Holzerzeugnisse abzutrennen, die nachfolgend allgemein als Holzlamellen bezeichnet werden. Bei größerer Dicke können diese Holzlamellen auch als Bretter bezeichnet werden.These known devices are used to cut flat, elongated wood products in chipless cutting technology, which are hereinafter generally referred to as wood lamellae. With greater thickness, these wooden slats can also be called boards.
Hierzu wird ein vorzugsweise allseitig bearbeitetes Kantholz oder ein Balken in seiner Längsrichtung entlang einer Holzführungsfläche bewegt. Bei einer in der Praxis ausgeführten Vorrichtung ist diese Holzführungsflache horizontal angeordnet und das Kantholz wird durch die Vorschubeinrichtung von oben gegen die Holzführungsflache gedrückt. Die Vorschubeinrichtung ist üblicherweise ein endlos umlaufender, angetriebener Fördergurt.For this purpose, a square timber or a beam, preferably machined on all sides, is moved in its longitudinal direction along a timber guiding surface. In the case of a device designed in practice, this is the wooden guide surface arranged horizontally and the squared timber is pressed against the timber guide surface from above by the feed device. The feed device is usually an endlessly rotating, driven conveyor belt.
Das die Holzlamellen abtrennende Messer ist so auf der Holzführungsfläche angeordnet, daß sich seine Schneidkante in einem Abstand zur Holzführungsfläche befindet, der der Dicke der abzutrennenden Holzlamellen entspricht. Die Schneidkante verläuft schräg zur Holzlängsrichtung, die zugleich die Förderrichtung ist. Dadurch wird ein ziehender Schnitt erreicht.The knife separating the wooden slats is arranged on the wooden guide surface in such a way that its cutting edge is at a distance from the wooden guide surface which corresponds to the thickness of the wooden slats to be separated. The cutting edge runs at an angle to the longitudinal direction of the wood, which is also the conveying direction. This creates a pulling cut.
Die durch die schräge Anordnung der Schneidkante erzeugten und auf das Kantholz wirkenden Seitenkräfte müssen bei der bekannten Vorrichtung vollständig von der das Kantholz fördernden und führenden Vorschubeinrichtung aufgenommen werden. In den Bereichen, in denen die abzutrennende Holzlamelle noch über eine größere Fläche mit dem Kantholz verbunden ist, werden die durch die schräge Anordnung der Schneidkante auch auf die Holzlamelle ausgeübten Seitenkräfte noch ausreichend auf das Kantholz übertragen und daher ebenfalls an der Vorschubeinrichtung abgestützt. In dem Bereich, wo die Schneidkante die Seitenfläche des Kantholzes durchstößt, d.h. wo ein vollständiges Abtrennen der Holzlamelle erfolgt, ist die fast vollständig abgetrennte Holzlamelle aber nur noch über einen sehr kleinen Querschnitt mit dem Kantholz verbunden. Dieser kleine Querschnitt kann die von der Holzlamelle auf das Kantholz zu übertragenden Seitenkräfte nicht mehr übernehmen; deshalb bricht das Holz an dieser Stelle seitlich aus, so daß die Schneidkanten der abgetrennten Holzlamelle und/oder des Kantholzes und somit der im nächsten Durchlauf abzutrennenden Holzlamelle beschädigt werden.The side forces generated by the oblique arrangement of the cutting edge and acting on the squared timber must be completely absorbed by the feed device which conveys and guides the squared timber in the known device. In the areas where the wooden lamella to be separated is still connected to the square timber over a larger area, the lateral forces exerted on the wooden lamella due to the oblique arrangement of the cutting edge are still sufficiently transferred to the square timber and are therefore also supported on the feed device. In the area where the cutting edge pierces the side surface of the squared timber, ie where the wooden lamella is completely separated, the almost completely separated wooden lamella is only connected to the squared timber via a very small cross-section. This small cross-section can no longer take over the lateral forces to be transferred from the wooden lamella to the squared timber; therefore the wood breaks out laterally at this point, so that the cutting edges of the separated wood lamella and / or the squared timber and thus the in wooden slat to be separated in the next pass.
Aufgabe der Erfindung ist es daher, eine Vorrichtung der eingangs genannten Gattung so auszubilden, daß seitliche Ausbrüche des Holzes beim Abschneiden der Holzlamelle vom Kantholz vermieden werden.The object of the invention is therefore to design a device of the type mentioned in the introduction in such a way that lateral outbreaks of the wood are avoided when the lamella is cut from the squared timber.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß an dem dem Messer gegenüberliegenden Seitenrand der Holzführungsfläche eine seitliche Führungsleiste angeordnet ist, daß sich die Führungsleiste in Förderrichtung mindestens bis zur Schneidkante erstreckt und daß die Oberkante der Führungsleiste mindestens angenähert in Höhe der Schneidkante über der Holzführungsfläche liegt.This object is achieved in that a lateral guide bar is arranged on the side edge of the wooden guide surface opposite the knife, that the guide bar extends in the conveying direction at least to the cutting edge and that the upper edge of the guide bar is at least approximately at the level of the cutting edge above the wooden guide surface.
Da sich die Führungsleiste mindestens bis zur Schneidkante erstreckt, wird die Seitenfläche des Kantholzes und damit auch die seitliche Kante der Holzlamelle bis zu der Stelle hin seitlich abgestützt, an der die Holzlamelle schließlich nur noch mit einem sehr geringen Querschnitt mit dem Kantholz verbunden ist. Da die durch die Schrägstellung der Schneidkante auftretenden Seitenkräfte somit vollständig abgestützt werden und es daher zwischen der Holzlamelle und dem Kantholz nicht mehr zur Übertragung solcher Seitenkräfte oder Querkräfte kommt, bricht das Holz an dieser Stelle nicht aus. Die abgetrennte Holzlamelle hat eine unbeschädigte Schneidkante, und auch das Kantholz behält eine saubere, unbeschädigte Schneidkante, die dann die Schneidkante der nachfolgend abzuschneidenden Holzlamelle bildet. Da die durch die Schrägstellung der Schneidkante verursachten Seitenkräfte nicht mehr von der Vorschubeinrichtung aufgenommen werden müssen, kann die Vorschubeinrichtung konstruktiv einfacher ausgeführt werden. Da sich die auftretenden Seitenkräfte nicht mehr störend auswirken, kann die Schneidkante in einem verhältnismäßig kleinen Winkel von vorzugsweise 10 bis 30° zur Förderriσhtung und damit zur Richtung der Führungsleiste angeordnet werden. Dadurch wird ein überwiegend ziehender Schnitt erreicht, der für die erzielbare Schneidqualität und hinsichtlich der erforderlichen Vorschubkräfte günstig ist. Unter "ziehendem Schnitt" wird ein Schneidvorgang verstanden, bei dem die Vorschubrichtung nicht senkrecht zur Schneidkante, sondern in einem Winkel hierzu verläuft, d.h. die Vorschubbewegung hat eine Bewegungskomponente parallel zur Schneidkante.Since the guide bar extends at least to the cutting edge, the side surface of the squared timber and thus also the side edge of the wooden slat is laterally supported up to the point at which the wooden slat is only connected to the squared timber with a very small cross section. Since the lateral forces occurring due to the inclined cutting edge are fully supported and therefore no such lateral or transverse forces are transmitted between the wooden lamella and the squared timber, the wood does not break out at this point. The separated wooden lamella has an undamaged cutting edge, and the squared timber also has a clean, undamaged cutting edge, which then forms the cutting edge of the wooden lamella to be subsequently cut off. Since the lateral forces caused by the inclined position of the cutting edge no longer have to be absorbed by the feed device, the feed device can be of simpler design. Since the lateral forces no longer have a disruptive effect, the cutting edge can be arranged at a relatively small angle of preferably 10 to 30 ° to the conveying direction and thus to the direction of the guide bar. As a result, a predominantly pulling cut is achieved, which is favorable for the cutting quality that can be achieved and with regard to the required feed forces. A "pulling cut" is understood to mean a cutting process in which the feed direction is not perpendicular to the cutting edge but at an angle to it, ie the feed movement has a component of motion parallel to the cutting edge.
Gemäß einer bevorzugten Ausführungsform der Erfindung ist vorgesehen, daß die Führungsleiste - entgegen der Förderrichtung gesehen - über das Messer vorragt. Dadurch wird erreicht, daß nicht nur die Schneidkante der abzutrennenden Holzlamelle in voller Höhe seitlich abgestützt wird, sondern daß auch eine zusätzliche seitliche Abstützung des nach dem Abschneiden der Holzlamelle verbleibenden Kantholzes erfolgt.According to a preferred embodiment of the invention, it is provided that the guide bar - seen against the conveying direction - projects beyond the knife. This ensures that not only is the cutting edge of the wooden lamella to be separated laterally supported in full height, but also that there is additional lateral support for the squared timber remaining after the wooden lamella has been cut off.
Vorzugsweise endet die Führungsleiste mit ihrem in Förderrichtung vorderen Ende an der Schneidkante.The guide bar preferably ends at the cutting edge with its front end in the conveying direction.
Gemäß einer Ausgestaltung des Erfindungsgedankens ist vorgesehen, daß die Oberkante der Führungsleiste in einem Abstand zur Holzführungsfläche liegt, der das 1,2- bis 1,7-fache des Abstands der Schneidkante zur Ho1zführungsf1äehe beträgt.According to one embodiment of the concept of the invention, it is provided that the upper edge of the guide bar is at a distance from the wooden guide surface, which is 1.2 to 1.7 times the distance from the cutting edge to the wooden guide surface.
Weitere vorteilhafte Ausgestaltungen des Erfindungsgedankens sind Gegenstand weiterer Unteransprüche.Further advantageous embodiments of the inventive concept are the subject of further dependent claims.
Nachfolgend wird ein Ausführungsbeispiel der Erfindung näher erläutert, das in der Zeichnung dargestellt ist. Es zeigt:An exemplary embodiment of the invention is illustrated below, which is shown in the drawing. It shows:
Fig. 1 in einer stark vereinfachten Seitenansicht eine Vorrichtung zum spanlosen Abschneiden von Holzlamellen von einem Kantholz,1 is a greatly simplified side view of a device for cutting wood slats from a square timber without cutting,
Fig. 2 eine vergrößerte Draufsicht auf die Holzführungsfläche der Vorrichtung nach Fig. 1 mit dem Messer undFig. 2 is an enlarged plan view of the wooden guide surface of the device of FIG. 1 with the knife and
Fig. 3 einen Schnitt längs der Linie III-III in Fig. 2.3 shows a section along the line III-III in FIG. 2nd
Die in Fig. 1 in einer Seitenansicht stark vereinfacht dargestellte Vorrichtung dient dazu, von einem Kantholz 1, das in Richtung des Pfeiles 2 (d.h. in Fig. 1 von rechts nach links) zugeführt wird, an der Unterseite jeweils eine Holzlamelle 3 in spanloser Schneidtechnik abzuschneiden.The device shown in greatly simplified form in a side view in FIG. 1 is used, from a squared timber 1, which is fed in the direction of arrow 2 (ie from right to left in FIG. 1), on the underside in each case of a wooden lamella 3 using non-cutting technology to cut off.
Eine Vorschubeinrichtung 4 weist einen endlos umlaufenden Gurt 5 auf, der angetrieben wird und über Umlenkrollen 6 und 7 läuft. Durch mehrere Druckrollen 8 wird der Gurt 5 gegen die Oberseite des Kantholzes 1 gedrückt und nimmt das Kantholz 1 in seiner Längsrichtung mit. Dadurch ist die Förderrichtung des Kantholzes 1 bestimmt. Zugleich drückt der Gurt 5, der in Fig. 3 nur angedeutet ist, das Kantholz 1 gegen eine horizontale Holzführungsfläche 9.A feed device 4 has an endlessly circulating belt 5 which is driven and runs over deflection rollers 6 and 7. The belt 5 is pressed against the top of the squared timber 1 by several pressure rollers 8 and takes the squared timber 1 along in its longitudinal direction. As a result, the conveying direction of the squared timber 1 is determined. At the same time, the belt 5, which is only indicated in FIG. 3, presses the squared timber 1 against a horizontal timber guide surface 9.
Auf der Holzführungsfläche 9 ist ein Messer 10 angeordnet, dessen Schneidkante 11 in einem spitzen Winkel a zur Holzlängsrichtung und damit zur Förderrichtung angeordnet ist. Die Schneidkante 11 liegt in einem angenähert der Dicke der abzuschneidenden Holzlamelle 3 entsprechenden Abstand über der Holzführungsfläche 9 und parallel zu dieser.A knife 10 is arranged on the wood guiding surface 9, the cutting edge 11 of which is arranged at an acute angle a to the longitudinal direction of the wood and thus to the conveying direction. The cutting edge 11 lies at a distance approximately corresponding to the thickness of the wooden lamella 3 to be cut above the wooden guide surface 9 and parallel to it.
Unterhalb der Schneidkante 11 ist eine Gegendruckleiste 12 angeordnet, deren Druckkante 13 parallel zur Schneidkante 11 verläuft und von unten gegen die abzutrennende Holzlamelle 3 drückt, um einen sauberen Schnittverlauf zu erreichen. Die Gegendruckleiste 12 verhindert im wesentlichen ein Vorauslaufen eines Anrisses vor der Schneidkante 11. Wie in Fig. 3 angedeutet ist, sind sowohl das Messer als auch die Gegendrucklleiste 12 einstellbar.Arranged below the cutting edge 11 is a counter pressure bar 12, the pressure edge 13 of which runs parallel to the cutting edge 11 and presses against the wooden lamella 3 to be separated from below in order to achieve a clean cut. The counter pressure bar 12 essentially prevents a tear from running ahead of the cutting edge 11. As indicated in FIG. 3, both the knife and the counter pressure bar 12 are adjustable.
An dem dem Messer 10 gegenüberliegenden Seitenrand der Holzführungsfläche 9 ist eine seitliche Führungsleiste 14 angeordnet, die sich in Längsrichtung des Kantholzes 1 und somit in Förderrichtung im wesentlichen über die ganze Länge des Messers 10 erstreckt. Entgegen der Förderrichtung 2 gesehen ragt die Führungsleiste über das Messer 10 vor. Mit ihrem anderen, in Förderrichtung vorderen Ende endet die Führungsleiste 14 unmittelbar an der Schneidkante 11.On the side edge of the wooden guide surface 9 opposite the knife 10, a lateral guide bar 14 is arranged, which extends in the longitudinal direction of the squared timber 1 and thus in the conveying direction essentially over the entire length of the knife 10. Seen opposite to the conveying direction 2, the guide bar projects over the knife 10. With its other end, which is at the front in the conveying direction, the guide bar 14 ends directly at the cutting edge 11.
Bei dem dargestellten Ausführungsbeispiel liegt die Oberkante 14b der seitlichen Führungsleiste 14 in einem Abstand zur Holzführungsfläche 9, der etwas größer ist als der Abstand der Schneidkante 11 zur Holzführungsfläche 9; er beträgt vorzugsweise das 1,2- bis 1,7-Fache. Die Führungsleiste 14 ist in einer Längsnut 15 der Holzführungsfläche 9 formschlüssig aufgenommen.In the illustrated embodiment, the upper edge 14b of the lateral guide bar 14 is at a distance from the wooden guide surface 9 which is slightly larger than the distance of the cutting edge 11 to the wooden guide surface 9; it is preferably 1.2 to 1.7 times. The guide bar 14 is received in a form-fitting manner in a longitudinal groove 15 of the wooden guide surface 9.
Wie man aus Fig. 2 erkennt, bildet die Führungsleiste 14 mit der Schneidkante 11 einen spitzen Winkel a, der im Bereich von 10 bis 30° liegt. Die dadurch beim Schneiden auftretenden Seitenkräfte oder Querkräfte, die auf das Kantholz 1 und auf die abgetrennte Holzlamelle 3 wirken, sind im Vergleich zu der Vorschubkraft, je nach Größe des Winkels a des Messers 10, sehr groß. Diese Seitenkräfte werden vollständig von der seitlichen Führungsleiste 14 aufgenommen, und zwar insbesondere bis zu der Stelle 16 (Fig. 2), an der die Schneidkante 11 und die dem Kantholz 1 zugekehrte Fläche 14c der Führungsleiste 14 zusammenlaufen. As can be seen from FIG. 2, the guide bar 14 forms an acute angle a with the cutting edge 11, which is in the range from 10 to 30 °. The lateral forces or transverse forces that occur during cutting, which act on the square timber 1 and on the separated wooden lamella 3, are very large compared to the feed force, depending on the size of the angle a of the knife 10. These lateral forces are completely absorbed by the lateral guide bar 14, in particular up to the point 16 (FIG. 2) at which the cutting edge 11 and the surface 14c of the guide bar 14 facing the square timber 1 converge.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904029752 DE4029752C1 (en) | 1990-09-20 | 1990-09-20 | |
| DEP4029752.7 | 1990-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1992005020A1 true WO1992005020A1 (en) | 1992-04-02 |
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ID=6414592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1991/001457 Ceased WO1992005020A1 (en) | 1990-09-20 | 1991-08-02 | Device for the chip-free cutting of strips from square timber |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE4029752C1 (en) |
| WO (1) | WO1992005020A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2243606B1 (en) | 2009-04-24 | 2017-02-22 | GreCon Dimter Holzoptimierung Süd GmbH & Co. KG | Assembly for producing boards from wooden lamellae and method for producing such boards |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4038486A1 (en) * | 1990-12-03 | 1992-06-04 | Linck Masch Gatterlinck | DEVICE FOR CUTTING PRODUCTION OF THICK BOARDS |
| DE9116211U1 (en) * | 1991-01-30 | 1992-04-23 | Gebrüder Linck Maschinenfabrik "Gatterlinck" GmbH & Co KG, 7602 Oberkirch | Device for cutting a thin board |
| DE4337430C1 (en) * | 1993-11-03 | 1994-09-29 | Linck Masch Gatterlinck | Apparatus for the chipless cutting of wooden lamellae from a piece of squared timber |
| AT404107B (en) * | 1996-06-13 | 1998-08-25 | Rupert Hirnsperger | DEVICE OR METHOD FOR CHIP-FREE CUTTING OF WOOD LAMPS AND BOARDS |
| CZ305771B6 (en) * | 2014-04-17 | 2016-03-09 | Mendelova Univerzita V Brně | Multiple-tool cutter for producing longitudinally cut decorative veneer |
| DE102018111307A1 (en) * | 2018-05-11 | 2019-11-14 | Gaugler & Lutz Ohg | Device for processing one or more block-shaped workpieces |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2008317A (en) * | 1934-09-14 | 1935-07-16 | Frederick J Voigt | Wood slicing machine |
| US2809682A (en) * | 1955-06-03 | 1957-10-15 | Richard D Russell | Wood slicing machines |
| DE2222694A1 (en) * | 1971-04-21 | 1973-11-22 | Marunaka Tekkosho Inc | WOOD CUTTING MACHINE |
| US3796243A (en) * | 1972-04-12 | 1974-03-12 | S Komaki | Veneer slicer machine |
| FR2306057A1 (en) * | 1975-04-05 | 1976-10-29 | Linck Maschf & Eisen | METHOD AND APPARATUS FOR THE MANUFACTURE OF LUMBER FROM ROUND TREE TRUNKS |
| US4231275A (en) * | 1978-10-19 | 1980-11-04 | Nobuo Onishi | Cutter for thin boards |
| EP0322646A1 (en) * | 1987-12-28 | 1989-07-05 | Michel Martin | Longitudinal wood veneer slicer |
-
1990
- 1990-09-20 DE DE19904029752 patent/DE4029752C1/de not_active Expired - Lifetime
-
1991
- 1991-08-02 WO PCT/EP1991/001457 patent/WO1992005020A1/en not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2008317A (en) * | 1934-09-14 | 1935-07-16 | Frederick J Voigt | Wood slicing machine |
| US2809682A (en) * | 1955-06-03 | 1957-10-15 | Richard D Russell | Wood slicing machines |
| DE2222694A1 (en) * | 1971-04-21 | 1973-11-22 | Marunaka Tekkosho Inc | WOOD CUTTING MACHINE |
| US3796243A (en) * | 1972-04-12 | 1974-03-12 | S Komaki | Veneer slicer machine |
| FR2306057A1 (en) * | 1975-04-05 | 1976-10-29 | Linck Maschf & Eisen | METHOD AND APPARATUS FOR THE MANUFACTURE OF LUMBER FROM ROUND TREE TRUNKS |
| US4231275A (en) * | 1978-10-19 | 1980-11-04 | Nobuo Onishi | Cutter for thin boards |
| EP0322646A1 (en) * | 1987-12-28 | 1989-07-05 | Michel Martin | Longitudinal wood veneer slicer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2243606B1 (en) | 2009-04-24 | 2017-02-22 | GreCon Dimter Holzoptimierung Süd GmbH & Co. KG | Assembly for producing boards from wooden lamellae and method for producing such boards |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4029752C1 (en) | 1991-08-01 |
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