EP2524778A1 - Device for machining wood, plastic or similar - Google Patents
Device for machining wood, plastic or similar Download PDFInfo
- Publication number
- EP2524778A1 EP2524778A1 EP11166883A EP11166883A EP2524778A1 EP 2524778 A1 EP2524778 A1 EP 2524778A1 EP 11166883 A EP11166883 A EP 11166883A EP 11166883 A EP11166883 A EP 11166883A EP 2524778 A1 EP2524778 A1 EP 2524778A1
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- European Patent Office
- Prior art keywords
- feed roller
- feed
- workpiece
- transport path
- grooves
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- 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.)
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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
- B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
- B27C1/00—Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor
- B27C1/12—Arrangements for feeding work
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- 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
Definitions
- the invention relates to a device for processing wood, plastic or the like with at least one transport path, at least one stop rule and at least one feed roller, wherein a particular elongate workpiece on the transport path by means of the feed roller along the at least one stop rule in a feed direction is moved past.
- the invention relates to a method for processing wood, plastic or the like with a device, in particular with a device of the type mentioned above, wherein a particular elongated workpiece on a transport path by means of a feed roller along at least one stop rule is moved past in a feed direction.
- a device which has a support for workpieces to be machined, can be transported on the workpieces with a transport device in a feed direction to a rotating machining tool.
- a horizontal position of the workpiece in a direction normal to the feed direction is limited by a stop on one side of the workpiece during transport only in one direction.
- a disadvantage is that workpieces are moved away from the stop due to a partially uneven contact surface to stop at high speeds. For a high-precision machining of these workpieces at high transport speeds is not possible, which is why a high accuracy can only be achieved by a reduced machine performance.
- a planing device comprising a transport path for workpieces and at least one longitudinal guide is described.
- the problem of horizontal positioning described above is detected at high speeds and solved by means of a second longitudinal guide.
- a force is exerted on a workpiece by means of additional vertical pressure rollers in the direction of a guide ruler.
- this device is structurally complex, has such a solution insofar disadvantages for the machining process, as the second longitudinal guide must be set to the width of the workpiece to be machined. Thus, a manual intervention with each change of a machining width of the workpieces is required.
- the object of the invention is to provide a device of the type mentioned on the workpieces with high speeds and exactly aligned in a feed direction are movable. According to the task, this should also be possible when changing a workpiece dimension from one workpiece to the next without manual change to the device.
- the device should be structurally particularly simple and inexpensive.
- a method of the initially mentioned type is to be specified, in which, in order to allow precise machining, a flapping motion of the workpiece by means of the feed roller is prevented and a position of the workpiece in a plane perpendicular to the feed direction is clearly defined.
- the first object is achieved in that in a device of the type mentioned, the feed roller is profiled so that when moving the workpiece with the feed roller in the feed direction on the workpiece a force component of a feed force to the stop rule acts.
- This ensures that the otherwise normally displaceable in a horizontal direction normal to the feed direction workpiece is moved to a, in particular formed by the stop ruler, guide.
- a horizontal position of the workpiece in the plane normal to the feed direction clearly defined. This prevents chattering of the workpiece in the horizontal and vertical directions at high speeds, which makes high-precision machining possible even at high transport speeds.
- An advantage achieved by the invention is also to be seen in particular in that the lateral force component, which effects the stabilization in the horizontal direction, can be changed particularly easily by varying the profiling and the pressing force of the feed roller on the workpiece. This is also one Adaptation to different types of wood and transport speeds particularly easy.
- the force component of the feed force acts perpendicular to the feed direction and parallel to the transport path.
- This force component is part of a total force exerted by the feed roller on the workpiece, including the normally acting on the transport path contact force and the feed force acting in the feed direction counts.
- the advantage of this arrangement is to be seen in particular in that with this force component, the workpiece is positioned directly on a guide and a flapping motion is thus excluded in this direction.
- a position of the workpiece in a plane normal to the feed direction by a position of the transport path and a position of the stop rule by means of the profiling of the feed roller during movement of the workpiece caused force is clearly defined.
- the dimensions of the tool are smaller than that of the workpiece, the tool must therefore be positioned relative to the workpiece, since thus the tool can be aligned with the stop ruler and thus the position of the tool relative to the workpiece is clearly defined ,
- At least part of the profile of the feed roller consists of grooves. This has the advantage of easy manufacturability of the feed roller profile, z. B. by turning.
- the grooves are inclined with respect to a circumferential direction of the feed roller by less than 10 °, preferably by about 0.1 ° to 1 °, in particular 0.2 ° to 0.4 °. This achieves a particularly favorable ratio of force in the feed direction to force in the direction of the stop ruler. This results in a minimal wear while sufficiently accurate positioning of the workpiece is achieved.
- the grooves have a flank angle of 30 ° to 120 °, preferably 40 ° to 70 °, in particular about 60 °. This achieves a particularly favorable ratio of contact pressure to feed forces transmitted to the workpiece by the feed roller, as a result of which the wear on the feed roller profile can be further reduced.
- At least part of the profile of the feed roller comprises grooves which run approximately parallel to an axis of the feed roller, wherein the grooves are distributed irregularly or preferably regularly over the circumference. It has proven particularly useful to distribute between 10 and 30 grooves, preferably 15 to 25 grooves over the circumference. With such grooves, a transfer of forces from the feed roller to the workpiece in the feed direction is achieved particularly favorable.
- these grooves have a depth of less than 10%, preferably 1% to 7%, in particular 2.5% to 3.5%, of a roll diameter.
- Advantage of this design is that the grooves do not fill with chips even with longer service life of the feed rollers, so that a sufficient power transmission is given in the feed direction for long periods of use. At the same time, the expense of producing these grooves can be kept low in such a design.
- edges of these grooves are rounded. This avoids mechanical damage to the rollers due to peak stresses occurring in the edges, even with long service lives of the feed rollers. In addition, damage to the workpiece during contact with the feed roller is avoided.
- the feed roller comprises a hollow cylinder, on which the profile is applied, and a rotatably mounted feed roller body, wherein the hollow cylinder is detachably connected to the feed roller body.
- the connection between the hollow cylinder and the feed roller body can be indirect or immediate educated.
- the device can be adapted to different workpiece dimensions, on the other hand can thus also vary the force acting in the direction of the stopper force component particularly easy.
- the axis of the feed roller is approximately perpendicular to the feed direction. This has the advantage that movement in the feed direction from the rotating feed roller to the workpiece can be transmitted in a particularly wear-resistant manner.
- the axis of the feed roller is arranged approximately parallel to the plane of the transport path.
- the feed roller which is preferably designed as a cylinder, thus has at a contact surface to the workpiece at a rotation about its axis at each point of this contact surface at the same speed, so that the wear is further reduced.
- the stop rule is arranged approximately perpendicular to the plane of the transport path. Further, it is advantageous if the stop ruler is arranged parallel to the feed direction. The advantage that can be achieved thereby is to be seen in particular in that a workpiece moved on the transport path is then in constant contact with the stop ruler, and the position of the workpiece is then clearly defined during the entire transport process.
- the device is used as a woodworking machine.
- a particularly long service life of the feed roller can be achieved with a highly accurate positioning of the workpiece.
- the device is a wood planing machine. This is particularly advantageous, since especially in wood planing machines high transport speeds of, for example, more than 20 m / min are required.
- the second object is achieved in that in a method of the type mentioned by the feed roller at a feed movement to the workpiece at least one stabilizing force is applied, which defines a position of the workpiece in a plane perpendicular to the feed direction.
- a stop ruler Conveniently acts by a stop ruler, a force component perpendicular to the feed direction on the workpiece.
- the stop ruler acts as a guide element on which tools for machining the workpiece can be aligned.
- the position of the workpiece on the position of the stop rule is thus clearly defined.
- a method is provided in which a workpiece is transported along a feed direction on a transport path to a stop ruler fitting at a high speed of a feed roller to a tool and pressed by the feed roller in the direction of the stop rule, so that it by an opposing pair of forces stop ruler and feed roller is stabilized in the horizontal direction.
- This method can be applied particularly favorably to woodworking machines, in particular planing machines, since high transport speeds and precise positioning are required there.
- Fig. 1 shows a schematic representation of a device 1 for processing wood, plastic or the like, in particular wooden boards.
- a feed roller 4 is located above a workpiece 5 which on a transport path 2 along a stop rule 3 in the direction of a tool, not shown, for. B. a planing device, is arranged movable.
- the feed roller 4 is profiled at the contact surface between the feed roller 4 and workpiece 5 such that upon movement of the workpiece 5 with the feed roller 4, a force acts in the direction of the stop rule 3.
- the feed roller 4 rotates about an axis 8, which lies in a plane parallel to the transport path 2 and normal to the plane of the stop rule 3.
- the stop ruler 3 is perpendicular to the transport path 2 and parallel to the feed direction 9.
- the workpiece 5 is during transport along the feed direction 9 in continuous contact with the transport path 2 and the stop rule. 3
- Fig. 2 shows a detailed view of the feed roller 4, wherein the profile formed by grooves 6 and grooves 7 is particularly clearly visible.
- grooves 7 are evenly distributed over the circumference. Due to the recessed grooves 7 edges are parallel to the axial direction, the forces in the direction of the feed direction 9 can transfer particularly favorable.
- a keyway in the bore via which a feed roller 4 driving torque of, for example, an electric motor can be transmitted.
- a transmission of the torque for example via a splined shaft connection or other known shaft-hub connections is possible.
- Fig. 3 shows a further detailed representation of the feed roller 4, wherein the depth of the grooves 6 is particularly well visible relative to the roll diameter.
- Fig. 4 shows the circumferentially extending grooves 6 in detail, wherein a flank angle 10 of 60 ° and rounded edges are also shown. This reduces wear and prevents sharp edges from breaking. Furthermore, a favorable processing is made possible over the uniform profile in the axial direction; For example, the profile can be applied in a few steps on a lathe. Of course, alternative manufacturing methods, such as welding on the profile, are also possible.
- Fig. 5 shows a detailed representation of the grooves 7, which extend approximately parallel to the axis 8 of the feed roller 4 and their rounded edges and the depth of the grooves 7 relative to the diameter of the feed roller 4.
- the number of grooves 7 is optimized based on the criteria of manufacturing costs and achievable feed force. Due to the introduced grooves 7 form the grooves 6 in the end region or at a transition to the grooves 7 quasi teeth, which can engage gently in a workpiece to be moved.
- the transmittable feed force could be increased, but this would lead to an extra effort in the production of the grooves 7, which can be introduced into the feed roller 4, for example in a machining process such as milling or spaces , It is advantageous to round the edges of the grooves 7, in order to maximize the service life of the feed roller 4 and to prevent the occurrence of damaging peak voltages in the edges and to avoid damage to the workpiece.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Milling, Drilling, And Turning Of Wood (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Bearbeiten von Holz, Kunststoff oder dergleichen mit mindestens einer Transportbahn, mindestens einem Anschlaglineal und mindestens einer Vorschubwalze, wobei ein insbesondere längliches Werkstück auf der Transportbahn mittels der Vorschubwalze längs des mindestens einen Anschlaglineals in einer Vorschubrichtung vorbeibewegbar ist.The invention relates to a device for processing wood, plastic or the like with at least one transport path, at least one stop rule and at least one feed roller, wherein a particular elongate workpiece on the transport path by means of the feed roller along the at least one stop rule in a feed direction is moved past.
Des Weiteren betrifft die Erfindung ein Verfahren zum Bearbeiten von Holz, Kunststoff oder dergleichen mit einer Vorrichtung, insbesondere mit einer Vorrichtung der eingangs genannten Art, wobei ein insbesondere längliches Werkstück auf einer Transportbahn mittels einer Vorschubwalze längs mindestens eines Anschlaglineals in einer Vorschubrichtung vorbeibewegt wird.Furthermore, the invention relates to a method for processing wood, plastic or the like with a device, in particular with a device of the type mentioned above, wherein a particular elongated workpiece on a transport path by means of a feed roller along at least one stop rule is moved past in a feed direction.
Gemäß dem Stand der Technik sind verschiedene Vorrichtungen zum Bearbeiten von Holz, Kunststoff oder dergleichen bekannt. In der
In der
Aufgabe der Erfindung ist es, eine Vorrichtung der eingangs genannten Art anzugeben, auf der Werkstücke mit hohen Geschwindigkeiten und exakt ausgerichtet in eine Vorschubrichtung bewegbar sind. Aufgabengemäß soll dies auch bei einer Änderung einer Werkstückabmessung von einem Werkstück zum nächsten ohne manuelle Änderung an der Vorrichtung möglich sein. Weiter soll die Vorrichtung konstruktiv besonders einfach und kostengünstig ausgebildet sein.The object of the invention is to provide a device of the type mentioned on the workpieces with high speeds and exactly aligned in a feed direction are movable. According to the task, this should also be possible when changing a workpiece dimension from one workpiece to the next without manual change to the device. Next, the device should be structurally particularly simple and inexpensive.
Des Weiteren soll ein Verfahren der eingangs genannten Art angegeben werden, bei dem, um eine genaue Bearbeitung zu ermöglichen, eine Flatterbewegung des Werkstückes mittels der Vorschubwalze verhindert wird und eine Position des Werkstückes in einer Ebene senkrecht zur Vorschubrichtung eindeutig definiert wird.Furthermore, a method of the initially mentioned type is to be specified, in which, in order to allow precise machining, a flapping motion of the workpiece by means of the feed roller is prevented and a position of the workpiece in a plane perpendicular to the feed direction is clearly defined.
Die erste Aufgabe wird erfindungsgemäß dadurch gelöst, dass bei einer Vorrichtung der eingangs genannten Art die Vorschubwalze derart profiliert ist, dass bei Bewegen des Werkstückes mit der Vorschubwalze in die Vorschubrichtung auf das Werkstück eine Kraftkomponente einer Vorschubkraft zum Anschlaglineal hin wirkt. Damit wird erreicht, dass das ansonsten in einer horizontalen Richtung normal zur Vorschubrichtung frei verschiebbare Werkstück bis zu einer, insbesondere durch das Anschlaglineal gebildeten, Führung verschoben wird. Damit ist neben der vertikalen Position, die durch die Transportbahn an sich festgelegt wird, auch eine horizontale Position des Werkstückes in der Ebene normal zur Vorschubrichtung eindeutig definiert. Damit wird ein Flattern des Werkstückes in horizontaler und vertikaler Richtung bei hohen Geschwindigkeiten verhindert, wodurch auch bei hohen Transportgeschwindigkeiten hochgenaue Bearbeitungen möglich sind.The first object is achieved in that in a device of the type mentioned, the feed roller is profiled so that when moving the workpiece with the feed roller in the feed direction on the workpiece a force component of a feed force to the stop rule acts. This ensures that the otherwise normally displaceable in a horizontal direction normal to the feed direction workpiece is moved to a, in particular formed by the stop ruler, guide. Thus, in addition to the vertical position, which is determined by the transport path itself, a horizontal position of the workpiece in the plane normal to the feed direction clearly defined. This prevents chattering of the workpiece in the horizontal and vertical directions at high speeds, which makes high-precision machining possible even at high transport speeds.
Ein mit der Erfindung erzielter Vorteil ist insbesondere auch darin zu sehen, dass über eine Variation der Profilierung sowie die Anpresskraft der Vorschubwalze auf das Werkstück die seitliche Kraftkomponente, welche die Stabilisierung in horizontaler Richtung bewirkt, besonders einfach verändert werden kann. Damit ist auch eine Anpassung auf verschiedene Holzarten sowie Transportgeschwindigkeiten besonders einfach möglich.An advantage achieved by the invention is also to be seen in particular in that the lateral force component, which effects the stabilization in the horizontal direction, can be changed particularly easily by varying the profiling and the pressing force of the feed roller on the workpiece. This is also one Adaptation to different types of wood and transport speeds particularly easy.
Im Übrigen ergibt sich eine einfache konstruktive Ausgestaltung der Vorrichtung, die ein Verfahren ohne manuelle Eingriffe bei Änderungen von Werkstückabmessungen ermöglicht.Incidentally, results in a simple structural design of the device, which allows a method without manual intervention in changes of workpiece dimensions.
Es hat sich bewährt, dass die Kraftkomponente der Vorschubkraft senkrecht zur Vorschubrichtung und parallel zur Transportbahn wirkt. Diese Kraftkomponente ist Teil einer Gesamtkraft, welche die Vorschubwalze auf das Werkstück ausübt, wozu auch die normal zur Transportbahn wirkende Anpresskraft sowie die in Vorschubrichtung wirkende Vorschubkraft zählt. Der Vorteil dieser Anordnung ist insbesondere darin zu sehen, dass mit dieser Kraftkomponente das Werkstück direkt an eine Führung positioniert wird und eine Flatterbewegung damit in dieser Richtung ausgeschlossen ist.It has been proven that the force component of the feed force acts perpendicular to the feed direction and parallel to the transport path. This force component is part of a total force exerted by the feed roller on the workpiece, including the normally acting on the transport path contact force and the feed force acting in the feed direction counts. The advantage of this arrangement is to be seen in particular in that with this force component, the workpiece is positioned directly on a guide and a flapping motion is thus excluded in this direction.
Zweckmäßigerweise ist eine Position des Werkstückes in einer Ebene normal zur Vorschubrichtung durch eine Position der Transportbahn und eine Position des Anschlaglineals mittels der von der Profilierung der Vorschubwalze beim Bewegen des Werkstückes hervorgerufenen Kraft eindeutig definiert. Dies ist insbesondere dann von Vorteil, wenn die Abmessungen des Werkzeuges kleiner als die des Werkstückes sind, das Werkzeug also relativ zum Werkstück positioniert werden muss, da damit das Werkzeug am Anschlaglineal ausgerichtet werden kann und dadurch die Position des Werkzeuges relativ zum Werkstück eindeutig definiert ist.Conveniently, a position of the workpiece in a plane normal to the feed direction by a position of the transport path and a position of the stop rule by means of the profiling of the feed roller during movement of the workpiece caused force is clearly defined. This is particularly advantageous if the dimensions of the tool are smaller than that of the workpiece, the tool must therefore be positioned relative to the workpiece, since thus the tool can be aligned with the stop ruler and thus the position of the tool relative to the workpiece is clearly defined ,
Bevorzugt ist vorgesehen, dass zumindest ein Teil des Profils der Vorschubwalze aus Rillen besteht. Dies hat den Vorteil einfacher Fertigbarkeit des Vorschubwalzenprofils, z. B. durch Drehen.It is preferably provided that at least part of the profile of the feed roller consists of grooves. This has the advantage of easy manufacturability of the feed roller profile, z. B. by turning.
Es ist von Vorteil, wenn die Rillen gegenüber einer Umfangsrichtung der Vorschubwalze um weniger als 10°, vorzugsweise um etwa 0,1° bis 1 °, insbesondere 0,2° bis 0,4°, geneigt verlaufen. Damit wird ein besonders günstiges Verhältnis von Kraft in Vorschubrichtung zu Kraft in Richtung des Anschlaglineals erreicht. Dies führt dazu, dass ein minimaler Verschleiß bei gleichzeitig ausreichend genauer Positionierung des Werkstückes erzielt wird.It is advantageous if the grooves are inclined with respect to a circumferential direction of the feed roller by less than 10 °, preferably by about 0.1 ° to 1 °, in particular 0.2 ° to 0.4 °. This achieves a particularly favorable ratio of force in the feed direction to force in the direction of the stop ruler. This results in a minimal wear while sufficiently accurate positioning of the workpiece is achieved.
Zweckmäßigerweise weisen die Rillen einen Flankenwinkel von 30° bis 120°, vorzugsweise 40° bis 70°, insbesondere etwa 60°, auf. Damit wird ein besonders günstiges Verhältnis von Anpresskraft zu von der Vorschubwalze auf das Werkstück übertragenen Vorschubkräften erreicht, wodurch sich der Verschleiß am Vorschubwalzenprofil weiter reduzieren lässt.Conveniently, the grooves have a flank angle of 30 ° to 120 °, preferably 40 ° to 70 °, in particular about 60 °. This achieves a particularly favorable ratio of contact pressure to feed forces transmitted to the workpiece by the feed roller, as a result of which the wear on the feed roller profile can be further reduced.
Es ist von Vorteil, wenn zumindest ein Teil des Profils der Vorschubwalze einem metrischen ISO-Gewinde nach DIN 13 entspricht. Dies hat aufgrund vorhandener standardisierter Werkzeuge für derartige Gewinde den Vorteil, dass eine Fertigung dieses Profils auf besonders kostengünstige Weise erfolgen kann.It is advantageous if at least part of the profile of the feed roller corresponds to a metric ISO thread according to DIN 13. This has due to existing standardized tools for such thread the advantage that a production of this profile can be done in a particularly cost-effective manner.
Zweckmäßigerweise umfasst zumindest ein Teil des Profils der Vorschubwalze Nuten, die etwa parallel zu einer Achse der Vorschubwalze verlaufen, wobei die Nuten unregelmäßig oder vorzugsweise regelmäßig über den Umfang verteilt sind. Dabei hat sich besonders bewährt, zwischen 10 und 30 Nuten, vorzugsweise 15 bis 25 Nuten, über den Umfang zu verteilen. Mit derartigen Nuten wird ein Übertragen von Kräften von der Vorschubwalze auf das Werkstück in die Vorschubrichtung besonders günstig erreicht.Conveniently, at least part of the profile of the feed roller comprises grooves which run approximately parallel to an axis of the feed roller, wherein the grooves are distributed irregularly or preferably regularly over the circumference. It has proven particularly useful to distribute between 10 and 30 grooves, preferably 15 to 25 grooves over the circumference. With such grooves, a transfer of forces from the feed roller to the workpiece in the feed direction is achieved particularly favorable.
Bevorzugt weisen diese Nuten eine Tiefe von weniger als 10 %, vorzugsweise 1 % bis 7 %, insbesondere 2,5 % bis 3,5 %, eines Walzendurchmessers auf. Vorteil dieser Ausbildung ist, dass sich die Nuten auch bei längeren Standzeiten der Vorschubwalzen nicht mit Spänen füllen, sodass eine ausreichende Kraftübertragung in Vorschubrichtung für lange Einsatzzeiten gegeben ist. Gleichzeitig kann bei einer derartigen Ausbildung auch der Aufwand zur Fertigung dieser Nuten gering gehalten werden.Preferably, these grooves have a depth of less than 10%, preferably 1% to 7%, in particular 2.5% to 3.5%, of a roll diameter. Advantage of this design is that the grooves do not fill with chips even with longer service life of the feed rollers, so that a sufficient power transmission is given in the feed direction for long periods of use. At the same time, the expense of producing these grooves can be kept low in such a design.
Es ist von Vorteil, wenn Kanten dieser Nuten verrundet sind. Damit wird auch bei langen Standzeiten der Vorschubwalzen eine mechanische Beschädigung der Walzen durch auftretende Spitzenspannungen in den Kanten vermieden. Zusätzlich wird eine Beschädigung des Werkstückes beim Kontakt mit der Vorschubwalze vermieden.It is advantageous if edges of these grooves are rounded. This avoids mechanical damage to the rollers due to peak stresses occurring in the edges, even with long service lives of the feed rollers. In addition, damage to the workpiece during contact with the feed roller is avoided.
Es ist von Vorteil, dass die Vorschubwalze einen Hohlzylinder, auf den das Profil aufgebracht ist, und einen drehbar gelagerten Vorschubwalzenkörper umfasst, wobei der Hohlzylinder lösbar mit dem Vorschubwalzenkörper in Verbindung steht. Die Verbindung zwischen Hohlzylinder und Vorschubwalzenkörper kann dabei mittelbar oder unmittelbar ausgebildet. Eine derartige Ausbildung hat den Vorteil, dass bei Verschleiß des Profils der Vorschubwalze nicht die gesamte Vorschubwalze getauscht werden muss, sondern nur der Hohlzylinder auf den das Profil aufgebracht ist. Damit können Stillstandzeiten der Vorrichtung bei Verschleiß des Vorschubwalzenprofils reduziert werden.It is advantageous that the feed roller comprises a hollow cylinder, on which the profile is applied, and a rotatably mounted feed roller body, wherein the hollow cylinder is detachably connected to the feed roller body. The connection between the hollow cylinder and the feed roller body can be indirect or immediate educated. Such a design has the advantage that when the profile of the feed roller wear, not the entire feed roller must be replaced, but only the hollow cylinder on which the profile is applied. This downtime of the device can be reduced in wear of the feed roller profile.
Es hat sich bewährt, dass eine Achse der Vorschubwalze gegenüber der Transportbahn rotatorisch und translatorisch bewegbar gelagert ist. Damit kann einerseits die Vorrichtung an verschiedene Werkstückabmessungen angepasst werden, andererseits lässt sich damit auch die in Richtung des Anschlaglineals wirkende Kraftkomponente besonders einfach variieren.It has been proven that an axis of the feed roller relative to the transport path is mounted rotatably and translationally movable. Thus, on the one hand, the device can be adapted to different workpiece dimensions, on the other hand can thus also vary the force acting in the direction of the stopper force component particularly easy.
Vorzugsweise steht die Achse der Vorschubwalze etwa senkrecht auf die Vorschubrichtung. Dies hat den Vorteil, dass eine Bewegung in Vorschubrichtung von der rotierenden Vorschubwalze auf das Werkstück besonders verschleißarm übertragen werden kann.Preferably, the axis of the feed roller is approximately perpendicular to the feed direction. This has the advantage that movement in the feed direction from the rotating feed roller to the workpiece can be transmitted in a particularly wear-resistant manner.
Es ist von Vorteil, dass die Achse der Vorschubwalze etwa parallel zu der Ebene der Transportbahn angeordnet ist. Die Vorschubwalze, die bevorzugt als Zylinder ausgebildet ist, weist damit an einer Kontaktoberfläche zum Werkstück bei einer Rotation um deren Achse an jedem Punkt dieser Kontaktfläche dieselbe Geschwindigkeit auf, sodass der Verschleiß weiter reduziert wird.It is advantageous that the axis of the feed roller is arranged approximately parallel to the plane of the transport path. The feed roller, which is preferably designed as a cylinder, thus has at a contact surface to the workpiece at a rotation about its axis at each point of this contact surface at the same speed, so that the wear is further reduced.
Es hat sich bewährt, dass das Anschlaglineal etwa senkrecht auf die Ebene der Transportbahn angeordnet ist. Weiter ist es von Vorteil, wenn das Anschlaglineal parallel zur Vorschubrichtung angeordnet ist. Der damit erzielbare Vorteil ist insbesondere darin zu sehen, dass ein auf der Transportbahn bewegtes Werkstück dann in andauerndem Kontakt mit dem Anschlaglineal steht, und die Position des Werkstückes dann während des gesamten Transportvorganges eindeutig definiert ist.It has been proven that the stop rule is arranged approximately perpendicular to the plane of the transport path. Further, it is advantageous if the stop ruler is arranged parallel to the feed direction. The advantage that can be achieved thereby is to be seen in particular in that a workpiece moved on the transport path is then in constant contact with the stop ruler, and the position of the workpiece is then clearly defined during the entire transport process.
Zweckmäßigerweise wird die Vorrichtung als Holzbearbeitungsmaschine eingesetzt. Bei Kontakt einer aus Stahl ausgebildeten Vorschubwalze mit einem Werkstück aus Holz kann bei einer hochgenauen Positionierung des Werkstückes eine besonders lange Standzeit der Vorschubwalze erreicht werden.Appropriately, the device is used as a woodworking machine. Upon contact of a feed roller made of steel with a workpiece made of wood, a particularly long service life of the feed roller can be achieved with a highly accurate positioning of the workpiece.
Zweckmäßigerweise ist die Vorrichtung eine Holzhobelmaschine. Dies ist besonders von Vorteil, da besonders bei Holzhobelmaschinen hohe Transportgeschwindigkeiten von beispielsweise mehr als 20 m/min gefordert sind.Conveniently, the device is a wood planing machine. This is particularly advantageous, since especially in wood planing machines high transport speeds of, for example, more than 20 m / min are required.
Die zweite Aufgabe wird erfindungsgemäß dadurch gelöst, dass bei einem Verfahren der eingangs genannten Art von der Vorschubwalze bei einer Vorschubbewegung auf das Werkstück mindestens eine stabilisierende Kraft ausgeübt wird, die eine Position des Werkstückes in eine Ebene senkrecht zur Vorschubrichtung definiert.The second object is achieved in that in a method of the type mentioned by the feed roller at a feed movement to the workpiece at least one stabilizing force is applied, which defines a position of the workpiece in a plane perpendicular to the feed direction.
Dies hat den Vorteil, dass eine Position eines Werkstückes auch bei hohen Geschwindigkeiten in einer Ebene normal zur Vorschubrichtung eindeutig festgelegt wird, und damit eine hochgenaue Bearbeitung dieser Werkstücke erst ermöglicht wird. Damit wird ein Flattern des Werkstückes in vertikaler sowie horizontaler Richtung vermieden und eine hochgenaue Bearbeitung auch bei hohen Transportgeschwindigkeiten ermöglicht.This has the advantage that a position of a workpiece is clearly defined even at high speeds in a plane normal to the feed direction, and thus a high-precision machining of these workpieces is only possible. This avoids chattering of the workpiece in the vertical and horizontal directions and enables highly accurate machining even at high transport speeds.
Zweckmäßigerweise wirkt von einem Anschlaglineal eine Kraftkomponente senkrecht zur Vorschubrichtung auf das Werkstück. Damit wirkt das Anschlaglineal als Führungselement, an dem Werkzeuge zur Bearbeitung des Werkstückes ausgerichtet werden können. Des Weiteren wird die Position des Werkstückes über die Position des Anschlaglineals damit eindeutig definiert. Damit wird ein Verfahren ermöglicht, bei dem ein Werkstück entlang einer Vorschubrichtung auf einer Transportbahn an einem Anschlaglineal anliegend mit einer hohen Geschwindigkeit von einer Vorschubwalze zu einem Werkzeug transportiert und von der Vorschubwalze in Richtung des Anschlaglineals gedrückt wird, sodass es durch ein entgegengerichtete Kräftepaar von Anschlaglineal und Vorschubwalze in horizontaler Richtung stabilisiert wird. Dieses Verfahren lässt sich besonders günstig auf Holzbearbeitungsmaschinen, insbesondere Hobelmaschinen, anwenden, da dort hohe Transportgeschwindigkeiten und eine genaue Positionierung gefordert sind.Conveniently acts by a stop ruler, a force component perpendicular to the feed direction on the workpiece. Thus, the stop ruler acts as a guide element on which tools for machining the workpiece can be aligned. Furthermore, the position of the workpiece on the position of the stop rule is thus clearly defined. Thus, a method is provided in which a workpiece is transported along a feed direction on a transport path to a stop ruler fitting at a high speed of a feed roller to a tool and pressed by the feed roller in the direction of the stop rule, so that it by an opposing pair of forces stop ruler and feed roller is stabilized in the horizontal direction. This method can be applied particularly favorably to woodworking machines, in particular planing machines, since high transport speeds and precise positioning are required there.
Weitere Merkmale, Vorteile und Wirkungen der Erfindung ergeben sich anhand des nachfolgend dargestellten Ausführungsbeispiels. In den Zeichnungen, auf welche dabei Bezug genommen wird, zeigen:
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Fig. 1 eine schematische Darstellung einer erfindungsgemäßen Vorrichtung zum Bearbeiten von Holz, Kunststoff oder dergleichen; -
Fig. 2 eine isometrische Ansicht einer erfindungsgemäßen Vorschubwalze; -
Fig. 3 eine Schnittansicht der Vorschubwalze, wobei der Schnitt normal zu einer Umfangsrichtung verläuft; -
Fig. 4 eine Detailansicht des Profils der Vorschubwalze bei einem Schnitt normal zu einer Umfangsrichtung; -
Fig. 5 eine weitere Detailansicht des Profils der Vorschubwalze bei einem Schnitt normal zu einer Achsrichtung.
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Fig. 1 a schematic representation of a device according to the invention for processing wood, plastic or the like; -
Fig. 2 an isometric view of a feed roller according to the invention; -
Fig. 3 a sectional view of the feed roller, wherein the section is normal to a circumferential direction; -
Fig. 4 a detail view of the profile of the feed roller in a section normal to a circumferential direction; -
Fig. 5 a further detail view of the profile of the feed roller in a section normal to an axial direction.
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP11166883A EP2524778A1 (en) | 2011-05-20 | 2011-05-20 | Device for machining wood, plastic or similar |
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Application Number | Priority Date | Filing Date | Title |
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EP11166883A EP2524778A1 (en) | 2011-05-20 | 2011-05-20 | Device for machining wood, plastic or similar |
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EP2524778A1 true EP2524778A1 (en) | 2012-11-21 |
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EP11166883A Withdrawn EP2524778A1 (en) | 2011-05-20 | 2011-05-20 | Device for machining wood, plastic or similar |
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Citations (14)
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---|---|---|---|---|
GB191406719A (en) * | 1914-03-17 | 1915-03-04 | Charles William Haskell Blood | Improvements in or relating to Automatic Feeding Tables. |
US1625881A (en) * | 1924-07-21 | 1927-04-26 | Buss Machine Works | Sectional feed roller for woodworking machines |
US1652756A (en) * | 1927-02-08 | 1927-12-13 | Bruce E L Co | Feed roller |
US1805437A (en) * | 1929-08-12 | 1931-05-12 | Woods Machine Co Sa | Wood planing machine |
DE532577C (en) * | 1930-07-27 | 1931-08-31 | Rudolf Lein | Woodworking machine |
FR1216780A (en) * | 1959-02-16 | 1960-04-27 | Claramunt M Constr Sa | Drive mechanism, in particular for wood sawing machine |
US3211197A (en) * | 1963-05-09 | 1965-10-12 | Temple Ind Inc | Edge straightening device |
US3299923A (en) * | 1963-05-09 | 1967-01-24 | Temple Ind Inc | Edge straightening method |
US3299921A (en) * | 1965-08-09 | 1967-01-24 | Jones William Carl | Single cutter board straightener and method of straightening |
DE2511040A1 (en) * | 1974-03-19 | 1975-10-02 | Bror Evert Eriksson | FEEDING DEVICE |
DE4417080A1 (en) | 1994-05-17 | 1995-11-23 | Weinig Michael Ag | Machine for processing workpieces made of wood, plastic and the like |
WO2000078514A1 (en) * | 1999-06-23 | 2000-12-28 | Kemtech International Pty Ltd | Feed wheel |
DE102009022345A1 (en) | 2009-05-15 | 2010-11-18 | Michael Weinig Ag | Smoothing plane device e.g. trimming device, for trimming of wooden work-piece, has entering channel limited by upper guidance spacer at side that lies opposite to truing table for truing work-piece |
DE202009015912U1 (en) * | 2009-11-23 | 2011-04-14 | Interroll Holding Ag | Drum motor with profiled casing |
-
2011
- 2011-05-20 EP EP11166883A patent/EP2524778A1/en not_active Withdrawn
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191406719A (en) * | 1914-03-17 | 1915-03-04 | Charles William Haskell Blood | Improvements in or relating to Automatic Feeding Tables. |
US1625881A (en) * | 1924-07-21 | 1927-04-26 | Buss Machine Works | Sectional feed roller for woodworking machines |
US1652756A (en) * | 1927-02-08 | 1927-12-13 | Bruce E L Co | Feed roller |
US1805437A (en) * | 1929-08-12 | 1931-05-12 | Woods Machine Co Sa | Wood planing machine |
DE532577C (en) * | 1930-07-27 | 1931-08-31 | Rudolf Lein | Woodworking machine |
FR1216780A (en) * | 1959-02-16 | 1960-04-27 | Claramunt M Constr Sa | Drive mechanism, in particular for wood sawing machine |
US3211197A (en) * | 1963-05-09 | 1965-10-12 | Temple Ind Inc | Edge straightening device |
US3299923A (en) * | 1963-05-09 | 1967-01-24 | Temple Ind Inc | Edge straightening method |
US3299921A (en) * | 1965-08-09 | 1967-01-24 | Jones William Carl | Single cutter board straightener and method of straightening |
DE2511040A1 (en) * | 1974-03-19 | 1975-10-02 | Bror Evert Eriksson | FEEDING DEVICE |
DE4417080A1 (en) | 1994-05-17 | 1995-11-23 | Weinig Michael Ag | Machine for processing workpieces made of wood, plastic and the like |
WO2000078514A1 (en) * | 1999-06-23 | 2000-12-28 | Kemtech International Pty Ltd | Feed wheel |
DE102009022345A1 (en) | 2009-05-15 | 2010-11-18 | Michael Weinig Ag | Smoothing plane device e.g. trimming device, for trimming of wooden work-piece, has entering channel limited by upper guidance spacer at side that lies opposite to truing table for truing work-piece |
DE202009015912U1 (en) * | 2009-11-23 | 2011-04-14 | Interroll Holding Ag | Drum motor with profiled casing |
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