EP0650810B1 - Apparatus for slicing wood laminae from squared timber - Google Patents
Apparatus for slicing wood laminae from squared timber Download PDFInfo
- Publication number
- EP0650810B1 EP0650810B1 EP94114498A EP94114498A EP0650810B1 EP 0650810 B1 EP0650810 B1 EP 0650810B1 EP 94114498 A EP94114498 A EP 94114498A EP 94114498 A EP94114498 A EP 94114498A EP 0650810 B1 EP0650810 B1 EP 0650810B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- timber
- diameter
- cutting edge
- roller
- conveying direction
- 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 - Lifetime
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B25/00—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees
- B27B25/02—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees with feed and pressure rollers
-
- 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
Definitions
- the invention relates to a device for cutting wood lamellae from a squared timber, with a knife, the cutting edge of which runs obliquely at an angle to the conveying direction of the squared timber, and with a feed device which presses the squared timber against an opposite timber guide surface and conveys it in its longitudinal direction, the Feed device has a plurality of pressure rollers extending transversely to the wood conveying direction.
- a squared timber preferably machined on all sides, is moved in its longitudinal direction along a timber guide surface.
- the squared timber is pressed against the timber guide surface by the feed device.
- the feed device usually has a plurality of pressure rollers which extend transversely to the direction of wood transport and which run directly or via an endlessly rotating one driven conveyor belt press the squared timber against the timber guide surface.
- these pressure rollers are cylindrical with the same diameter throughout.
- 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.
- the thickness of the wooden lamella cut off is not completely uniform. Since the pressure conditions change as the cutting process progresses, the severed wooden lamella has a somewhat smaller thickness in the area last cut, namely a triangular surface area at one of the rear corners of the wooden lamella, than in the rest of the area. This thickness deviation can amount to a few tenths of a millimeter and is therefore in most cases still within the permissible tolerance range of the individual wooden lamella. However, the thickness deviations of the individual wooden lamellae cut from a square timber add up to the respective rest of the square timber and lead to the last remaining lamellae having a greater thickness in a partial area, which is far outside the permissible tolerance range. The remaining lamella cannot therefore be used without extensive post-processing.
- the feed device has pairs of driven rollers which are floatingly supported in the vertical direction, the two rollers of each pair from above and below against the square timber be pressed.
- the respective lower rollers are designed in different lengths so that they only extend to the oblique cutting edge of the knife.
- the pressure rollers which are separate from the feed device and which only press the squared timber against the wood guide surface, are designed with the same diameter throughout, so that the pressure conditions change as the cutting process progresses, as described above.
- the object of the invention is therefore to design a device of the type mentioned at the outset in such a way that the different pressure conditions which occur during the cutting process are compensated for in such a way that the separated wooden lamellae have a uniform thickness, particularly in the last cut area.
- each pressure roller decreases approximately above the cutting edge of the knife in a diameter step from a larger diameter on the side lying in front of the cutting edge in the conveying direction to a smaller diameter on the side lying behind the cutting edge in the conveying direction.
- each pressure roller has two cylindrical roller sections which are connected to one another at the diameter step by a conical roller section. A sufficient but different contact pressure of the squared timber is achieved on both sides of the cutting edge.
- the roller section of larger diameter is at least slightly conical, at least in the case of the pressure roller last passed by the squared timber, with a diameter increasing toward the end of the roller.
- the device shown in simplified form in a side view in FIG. 1 is used, from a square 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 a wooden lamella 3 using non-cutting technology to cut off.
- a feed device 4 has an endlessly rotating conveyor belt 5 which is driven and runs over deflection rollers 6 and 7.
- the conveyor belt 5 is pressed against the top of the squared timber 1 by a plurality of pressure rollers 8 extending transversely to the conveying direction and takes the squared timber 1 in its longitudinal direction.
- the pressure rollers 8 press the square timber 1 through the conveyor belt 5 against a horizontal timber guide surface 9.
- the wooden lamella 3 in which the wooden lamella 3 is cut off on the underside of the square timber 1, the wooden lamella 3 can also be cut off on one of the side surfaces or on the upper side of the square timber 1.
- 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 separated, above the wooden guide surface 9 and parallel to it.
- a counter pressure bar 12 is arranged below the cutting edge 11, the pressure edge 13 of which is parallel to the cutting edge 11 runs and presses against the wooden lamella 3 to be separated from below in order to achieve a clean cut. Both the knife 10 and the counter pressure bar 12 are arranged adjustable.
- a lateral guide bar 14 is arranged on the side edge of the wooden guide surface 9 opposite the knife 10 and extends in the conveying direction essentially over the entire length of the knife 10.
- Each of the pressure rollers 8 extending transversely to the wood conveying direction has a diameter step 15 at which the diameter of the pressure roller 8 decreases from a larger diameter in a first roller portion 16 to a smaller diameter in a roller portion 17.
- the diameter step 15 of the individual pressure rollers 8 is approximately above the cutting edge 11 of the knife 10; the roller section 16 with a larger diameter is arranged on the side lying in front of the cutting edge 11 in the conveying direction, while the roller section 17 with a smaller diameter is arranged on the side lying behind the cutting edge 11 in the conveying direction.
- a greater contact pressure is exerted on the square timber 1 in the area which rests on the wooden guide surface 9 and has not yet come into engagement with the cutting edge 11 of the knife 10.
- the two cylindrical roller sections 16, 17 are connected to one another at the diameter step 15 by a conical roller section 18.
- the two roller sections 16 and 17 are designed, for example, with a diameter of 62 or 60 mm, so that the diameter step 15 bridges a difference in diameter of 2 mm.
- the tapered roller section 18 runs for example at 45 ° and has a rounded edge at the transition to the larger roller section 16.
- the roller section 17 with a smaller diameter extends over most of the length of the pressure roller 8'.
- the roller section 16 ′ with a larger diameter lying beyond the diameter step 15 is not cylindrical in this case, but is slightly conical with a diameter that increases toward the end of the roller. This results in an increased contact pressure at the edge of the square timber 1.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Wood Veneers (AREA)
- Debarking, Splitting, And Disintegration Of Timber (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum spanlosen Abschneiden von Holzlamellen von einem Kantholz, mit einem Messer, dessen Schneidkante schräg im Winkel zur Förderrichtung des Kantholzes verläuft, und mit einer Vorschubeinrichtung, die das Kantholz gegen eine gegenüberliegende Holzführungsfläche drückt und in seiner Längsrichtung fördert, wobei die Vorschubeinrichtung mehrere, sich quer zur Holzförderrichtung erstreckende Andruckrollen aufweist.The invention relates to a device for cutting wood lamellae from a squared timber, with a knife, the cutting edge of which runs obliquely at an angle to the conveying direction of the squared timber, and with a feed device which presses the squared timber against an opposite timber guide surface and conveys it in its longitudinal direction, the Feed device has a plurality of pressure rollers extending transversely to the wood conveying direction.
Diese bekannten Vorrichtungen (DE-B 40 29 752) 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 (DE-B 40 29 752) are used to cut flat, elongated wood products using non-cutting technology, which are generally referred to below as wood slats. With greater thickness, these wooden slats can also be called boards.
Hierzu wird ein vorzugsweise allseitig bearbeitetes Kantholz in seiner Längsrichtung entlang einer Holzführungsfläche bewegt. Das Kantholz wird durch die Vorschubeinrichtung gegen die Holzführungsfläche gedrückt. Die Vorschubeinrichtung weist üblicherweise mehrere, sich quer zur Holzförderrichtung erstreckende Andruckwalzen auf, die unmittelbar oder über einen endlos umlaufenden angetriebenen Fördergurt das Kantholz gegen die Holzführungsfläche drücken. Bei der bekannten Vorrichtung sind diese Andruckwalzen zylindrisch mit durchgehend gleichem Durchmesser ausgeführt.For this purpose, a squared timber, preferably machined on all sides, is moved in its longitudinal direction along a timber guide surface. The squared timber is pressed against the timber guide surface by the feed device. The feed device usually has a plurality of pressure rollers which extend transversely to the direction of wood transport and which run directly or via an endlessly rotating one driven conveyor belt press the squared timber against the timber guide surface. In the known device, these pressure rollers are cylindrical with the same diameter throughout.
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.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.
In der Praxis hat sich gezeigt, daß die Dicke der abgetrennten Holzlamelle nicht vollständig gleichmäßig ist. Da sich mit fortschreitendem Schneidvorgang die Andruckverhältnisse ändern, weist die abgetrennte Holzlamelle in dem zuletzt geschnittenen Bereich, nämlich einem dreieckförmigen Flächenbereich an einem der hinteren Ecken der Holzlamelle, eine etwas geringere Dicke als im übrigen Bereich auf. Diese Dickenabweichung kann einige zehntel Millimeter betragen und liegt damit in den meisten Fällen noch innerhalb der zulässigen Toleranzbreite der einzelnen Holzlamelle. Die Dickenabweichungen der einzelnen aus einem Kantholz geschnittenen Holzlamellen summieren sich aber am jeweilige Rest des Kantholzes auf und führen dazu, daß die als letztes verbleibende Restlamelle in einem Teilbereich eine größere Dicke aufweist, die weit außerhalb des zulässigen Toleranzbereiches liegt. Die Restlamelle ist daher ohne aufwendige Nachbearbeitung nicht brauchbar.In practice it has been shown that the thickness of the wooden lamella cut off is not completely uniform. Since the pressure conditions change as the cutting process progresses, the severed wooden lamella has a somewhat smaller thickness in the area last cut, namely a triangular surface area at one of the rear corners of the wooden lamella, than in the rest of the area. This thickness deviation can amount to a few tenths of a millimeter and is therefore in most cases still within the permissible tolerance range of the individual wooden lamella. However, the thickness deviations of the individual wooden lamellae cut from a square timber add up to the respective rest of the square timber and lead to the last remaining lamellae having a greater thickness in a partial area, which is far outside the permissible tolerance range. The remaining lamella cannot therefore be used without extensive post-processing.
Bei einer anderen bekannten Vorrichtung zum spanlosen Abschneiden von Holzlamellen von einem Kantholz (DE-A-40 38 486) weist die Vorschubeinrichtung in vertikaler Richtung schwimmend gelagerte Paare von angetriebenen Rollen auf, wobei die beiden Rollen jedes Paares von oben bzw. unten gegen das Kantholz gedrückt werden. Hierbei sind die jeweils unteren Rollen so in unterschiedlicher Länge ausgeführt, daß sie jeweils nur bis zu der schrägen Schneidkante des Messers reichen. Die von der Vorschubeinrichtung getrennten Andruckrollen, die allein das Kantholz gegen die Holzführungsfläche drücken, sind durchgehend mit gleichem Durchmesser ausgeführt, so daß sich auch hierbei die Andruckverhältnisse mit fortschreitendem Schneidvorgang ändern, wie vorstehend beschrieben wurde.In another known device for the non-cutting cutting of wooden lamellae from a square timber (DE-A-40 38 486), the feed device has pairs of driven rollers which are floatingly supported in the vertical direction, the two rollers of each pair from above and below against the square timber be pressed. Here the respective lower rollers are designed in different lengths so that they only extend to the oblique cutting edge of the knife. The pressure rollers, which are separate from the feed device and which only press the squared timber against the wood guide surface, are designed with the same diameter throughout, so that the pressure conditions change as the cutting process progresses, as described above.
Aufgabe der Erfindung ist es daher, eine Vorrichtung der eingangs genannten Gattung so auszubilden, daß die während des Schneidvorgangs auftretenden unterschiedlichen Andruckverhältnisse so kompensiert werden, daß die abgetrennten Holzlamellen eine gleichmäßige Dicke insbesondere auch im zuletzt geschnittenen Bereich aufweisen.The object of the invention is therefore to design a device of the type mentioned at the outset in such a way that the different pressure conditions which occur during the cutting process are compensated for in such a way that the separated wooden lamellae have a uniform thickness, particularly in the last cut area.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß sich der Durchmesser jeder Andruckrolle angenähert über der Schneidkante des Messers in einer Durchmesserstufe von einem größeren Durchmesser auf der in Förderrichtung vor der Schneidkante liegenden Seite zu einem kleineren Durchmesser auf der in Förderrichtung hinter der Schneidkante liegenden Seite verringert.This object is achieved in that the diameter of each pressure roller decreases approximately above the cutting edge of the knife in a diameter step from a larger diameter on the side lying in front of the cutting edge in the conveying direction to a smaller diameter on the side lying behind the cutting edge in the conveying direction.
Damit wird erreicht, daß die Anpressung des Kantholzes verstärkt in dem Bereich erfolgt, der beim Schneidvorgang jeweils noch vor der Schneidkante des Messers liegt und noch nicht geschnitten ist. Diese Wirkung wird insbesondere auch in dem Augenblick erzielt, wenn das hintere Ende des Kantholzes die Schneidkante des Messers passiert. Dadurch wird auch der letzte, noch nicht geschnittene Bereich des Kantholzes ausreichend stark gegen die Holzführungsfläche gedrückt. Es wird verhindert, daß sich die Anpreßkraft in diesem zuletzt geschnittenen Bereich verringert, wodurch die Dicke der Holzlamelle in diesem Bereich geringer würde.This ensures that the squeezing of the squared timber takes place increasingly in the area that is still in front of the cutting edge of the knife during the cutting process and has not yet been cut. This effect is especially achieved at the moment when the rear end of the squared timber passes the cutting edge of the knife. As a result, the last area of the squared timber that has not yet been cut is pressed sufficiently strongly against the timber guide surface. It is prevented that the contact pressure in this last cut Reduced area, which would reduce the thickness of the wood lamella in this area.
Gemäß einer bevorzugten Ausführungsform der Erfindung ist vorgesehen, daß jede Andruckrolle zwei zylindrische Rollenabschnitte aufweist, die an der Durchmesserstufe durch einen konischen Rollenabschnitt miteinander verbunden sind. Dadurch wird eine ausreichende, aber unterschiedliche Anpreßwirkung des Kantholzes beiderseits der Schneidkante erreicht.According to a preferred embodiment of the invention it is provided that each pressure roller has two cylindrical roller sections which are connected to one another at the diameter step by a conical roller section. A sufficient but different contact pressure of the squared timber is achieved on both sides of the cutting edge.
In weiterer Ausgestaltung des Erfindungsgedankens ist vorgesehen, daß der Rollenabschnitt größeren Durchmessers mindestens bei der vom Kantholz zuletzt passierten Andruckrolle mit sich zum Rollenende vergrößerndem Durchmesser leicht konisch ausgeführt ist. Dadurch wird eine sich zum Rand des Kantholzes hin verstärkende Anpreßwirkung erreicht, was für die Erzielung einer gleichmäßigen Dicke der abgetrennten Holzlamelle vorteilhaft ist.In a further embodiment of the concept of the invention, it is provided that the roller section of larger diameter is at least slightly conical, at least in the case of the pressure roller last passed by the squared timber, with a diameter increasing toward the end of the roller. As a result, a pressing effect that increases towards the edge of the square timber is achieved, which is advantageous for achieving a uniform thickness of the separated wooden lamella.
Nachfolgend wird ein Ausführungsbeispiel der Erfindung näher erläutert, das in der Zeichnung dargestellt ist. Es zeigt:
- Fig. 1
- in einer stark vereinfachten Seitenansicht eine Vorrichtung zum spanlosen Abschneiden von Holzlamellen von einem Kantholz,
- Fig. 2
- eine vergrößerte Draufsicht in Richtung des Pfeiles II in Fig. 1, wobei der auf dem Kantholz liegende Fördergurt der einfacheren Darstellung halber weggelassen ist,
- Fig 3
- ein Schnitt längs der Linie III-III in Fig. 2,
- Fig. 4
- eine Andruckrolle, die im mittleren Bereich des Messers angeordnet ist, und
- Fig. 5
- eine Andruckrolle, die an dem vom Kantholz zuletzt passierten Ende des Messers angeordnet ist.
- Fig. 1
- in a greatly simplified side view a device for cutting wood lamellae from a square timber without cutting,
- Fig. 2
- 2 shows an enlarged top view in the direction of arrow II in FIG. 1, the conveyor belt lying on the squared timber being omitted for the sake of simplicity,
- Fig 3
- a section along the line III-III in Fig. 2,
- Fig. 4
- a pressure roller, which is arranged in the central region of the knife, and
- Fig. 5
- a pressure roller, which is arranged at the end of the knife passed last by the squared timber.
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 simplified form in a side view in FIG. 1 is used, from a
Eine Vorschubeinrichtung 4 weist einen endlos umlaufenden Fördergurt 5 auf, der angetrieben wird und über Umlenkrollen 6 und 7 läuft. Durch mehrere, sich quer zur Förderrichtung erstreckende Andruckrollen 8 wird der Fördergurt 5 gegen die Oberseite des Kantholzes 1 gedrückt und nimmt das Kantholz 1 in seine Längsrichtung mit. Zugleich drücken die Andruckrollen 8 durch den Fördergurt 5 hindurch das Kantholz 1 gegen eine horizontale Holzführungsfläche 9.A feed device 4 has an endlessly rotating
Abweichend von dem dargestellten Ausführungsbeispiel, bei dem die Holzlamelle 3 an der Unterseite des Kantholzes 1 abgetrennt wird, kann die Holzlamelle 3 auch an einer der Seitenflächen oder an der Oberseite des Kantholzes 1 abgetrennt werden.In a departure from the exemplary embodiment shown, in which the
Auf der Holzführungsfläche 9 ist ein Messer 10 angeordent, 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 abzutrennenden Holzlamelle 3 entsprechenden Abstand über der Holzführungsfläche 9 und parallel zu dieser.A
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. Sowohl das Messer 10 als auch die Gegendruckleiste 12 sind einstellbar angeordent. An dem dem Messer 10 gegenüberliegenden Seitenrand der Holzführungsfläche 9 ist eine seitliche Führungsleiste 14 angeordent, die sich in Förderrichtung im wesentlichen über die ganze Länge des Messers 10 erstreckt.A
Jede der sich quer zur Holzförderrichtung erstreckenden Andruckrollen 8 weist eine Durchmesserstufe 15 auf, an der sich der Durchmesser der Andruckrolle 8 von einem größeren Durchmesser in einem ersten Rollenabschnitt 16 zu einem kleineren Durchmesser in einem Rollenabschnitt 17 verringert.Each of the
Wie man aus Fig. 2 erkennt, liegt die Durchmesserstufe 15 der einzelnen Andruckrollen 8 jeweils angenähert über der Schneidkante 11 des Messers 10; der Rollenabschnitt 16 mit größerem Durchmesser ist jeweils auf der in Förderrichtung vor der Schneidkante 11 liegenden Seite angeordnet, während der Rollenabschnitt 17 mit kleinerem Durchmesser jeweils auf der in Förderrichtung hinter der Schneidkante 11 liegenden Seite angeordnet ist. Dadurch wird eine größere Anpreßwirkung auf das Kantholz 1 in dem Bereich ausgeübt, der auf der Holzführungsfläche 9 aufliegt und noch nicht in Eingriff mit der Schneidkante 11 des Messers 10 gelangt ist.As can be seen from FIG. 2, the
Wie in Fig. 4 verstärkt angedeutet ist, sind die beiden zylindrischen Rollenabschnitte 16, 17 an der Durchmesserstufe 15 durch einen konischen Rollenabschnitt 18 miteinander verbunden. Bei der praktischen Ausführung sind die beiden Rollenabschnitte 16 bzw. 17 beispielsweise mit einem Durchmesser von 62 bzw. 60 mm ausgeführt, so daß die Durchmesserstufe 15 einen Durchmesserunterschied von 2 mm überbrückt. Der konische Rollenabschnitt 18 verläuft beispielsweise unter 45° und weist beim Übergang zum größeren Rollenabschnitt 16 eine abgerundete Kante auf.As indicated in FIG. 4, the two
Bei der in Fig. 5 gezeigten, zuletzt vom Kantholz 1 passierten Andruckrolle 8' erstreckt sich der Rollenabschnitt 17 mit geringerem Durchmesser über den größten Teil der Länge der Andruckrolle 8'. Der jenseits der Durchmesserstufe 15 liegende Rollenabschnitt 16' mit größerem Durchmesser ist hierbei nicht zylindrisch ausgeführt, sondern leicht konisch mit sich zum Rollenende hin vergrößerndem Durchmesser. Dadurch wird eine verstärkte Anspreßwirkung am Rand des Kantholzes 1 erreicht. Eine entsprechende konische Ausführung des Rollenabschnitts 16' kann auch bei den vorangehenden Andruckrollen 8 gewählt werden.In the pressure roller 8 'shown in FIG. 5 and last passed by the
Claims (3)
- An apparatus for slicing timber laminae (3) from square timber (1) using a cutter (10), the cutting edge (11) which is arranged obliquely in an angle (a) to the conveying direction of the squared timber (1), including a feed device (4) pressing the squared timber (1) against an opposite timber guide (9), conveying the said timber in its longitudinal direction, with the feed device (4) including several pressure rollers (8, 8') extending transversally to the conveying direction of the timber, characterised in that the diameter of each pressure roller (8, 8') is reduced approximately above the cutting edge (11) of the cutter (10) in a diamter step (15) from a larger diameter on the side prior to the cutting edge (11) in conveying direction to a smaller diameter on the side behind the cutting edge (11) in conveying direction.
- An apparatus according to Claim 1, characterised in that each pressure roller (8) includes 2 cylindrical roller sections (16, 17), connected with each other at the diameter step (15) by a tapered roller section (18).
- An apparatus according to Claim 1, characterised in that the roller section (16') of a larger diameter is designed at least in the case of the pressure roller (8), passed last by the squared timber (1), with a diameter increasing towards the roller end, thus being slightly tapered.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4337430 | 1993-11-03 | ||
| DE4337430A DE4337430C1 (en) | 1993-11-03 | 1993-11-03 | Apparatus for the chipless cutting of wooden lamellae from a piece of squared timber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0650810A1 EP0650810A1 (en) | 1995-05-03 |
| EP0650810B1 true EP0650810B1 (en) | 1997-02-26 |
Family
ID=6501645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94114498A Expired - Lifetime EP0650810B1 (en) | 1993-11-03 | 1994-09-15 | Apparatus for slicing wood laminae from squared timber |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0650810B1 (en) |
| JP (1) | JPH07195306A (en) |
| AT (1) | ATE149111T1 (en) |
| CA (1) | CA2134177A1 (en) |
| DE (2) | DE4337430C1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT404107B (en) * | 1996-06-13 | 1998-08-25 | Rupert Hirnsperger | DEVICE OR METHOD FOR CHIP-FREE CUTTING OF WOOD LAMPS AND BOARDS |
| DE102018111307A1 (en) * | 2018-05-11 | 2019-11-14 | Gaugler & Lutz Ohg | Device for processing one or more block-shaped workpieces |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4029752C1 (en) * | 1990-09-20 | 1991-08-01 | Gebrueder Linck Maschinenfabrik "Gatterlinck" Gmbh & Co Kg, 7602 Oberkirch, De | |
| DE4038486A1 (en) * | 1990-12-03 | 1992-06-04 | Linck Masch Gatterlinck | DEVICE FOR CUTTING PRODUCTION OF THICK BOARDS |
-
1993
- 1993-11-03 DE DE4337430A patent/DE4337430C1/en not_active Expired - Fee Related
-
1994
- 1994-09-15 AT AT94114498T patent/ATE149111T1/en not_active IP Right Cessation
- 1994-09-15 DE DE59401855T patent/DE59401855D1/en not_active Expired - Fee Related
- 1994-09-15 EP EP94114498A patent/EP0650810B1/en not_active Expired - Lifetime
- 1994-10-24 CA CA002134177A patent/CA2134177A1/en not_active Abandoned
- 1994-11-02 JP JP6269925A patent/JPH07195306A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CA2134177A1 (en) | 1995-05-04 |
| EP0650810A1 (en) | 1995-05-03 |
| JPH07195306A (en) | 1995-08-01 |
| DE59401855D1 (en) | 1997-04-03 |
| DE4337430C1 (en) | 1994-09-29 |
| ATE149111T1 (en) | 1997-03-15 |
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