EP0314152B1 - Planing machine - Google Patents
Planing machine Download PDFInfo
- Publication number
- EP0314152B1 EP0314152B1 EP88117956A EP88117956A EP0314152B1 EP 0314152 B1 EP0314152 B1 EP 0314152B1 EP 88117956 A EP88117956 A EP 88117956A EP 88117956 A EP88117956 A EP 88117956A EP 0314152 B1 EP0314152 B1 EP 0314152B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- units
- planing machine
- shoe
- axle
- 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
- 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
- B27C1/04—Thicknessing machines
Definitions
- the invention relates to a planing machine with two rotating knife rollers, between which the bar or the like is passed, with each knife roller being assigned a front shoe and a rear shoe, and each unit consisting of a front shoe, knife roller and rear shoe being movably supported at right angles to the corresponding processing surface and against by pressing forces the working surface is pressed.
- a planing machine of the aforementioned kind has become known from US-A-4 457 350. Beams or the like can be passed between two rotating knife rollers be, and by the movable arrangement of the knife rollers with the associated devices, it is possible to plan beams or the like smooth on two opposite surfaces even if the bar thickness has changes or even if the bar is curved. In this way, rework is avoided, in particular on the inside of a curvature that would have to be carried out by hand.
- the invention is therefore based on the object of further developing a planing machine of the type specified at the outset in such a way that even workpieces with little material loss can be machined, which have greater dimensional inaccuracies, or in which the mutually opposite surfaces to be machined do not run parallel.
- a planing machine of the type specified at the outset It is proposed according to the invention that at least one unit is mounted so as to be pivotable about an axis parallel to the knife axis. With such an arrangement, it becomes possible for the unit to follow the outer contour of a beam, in a manner similar to that previously only possible with a hand-operated planer. All the advantages of the planing machine are retained.
- the unit follows such a taper without special adjustment.
- the unit is also able to swivel into the taper from the surface parallel to the longitudinal axis of the beam.
- pivot axis is arranged a small amount in front of the knife axis. With such an arrangement, a secure pivoting of the unit is achieved. The transition between the adjoining and aligned surfaces is rounded. Unplaned areas are avoided.
- each planing unit it is easily possible to adapt to the special purpose.
- the depth of cut on each cutter block can be determined by aligning the front and rear shoe.
- Schropp knives for example, if certain visible surfaces are to be processed in a special way.
- the invention proposes controlled feed devices for at least one of the units, which feed device brings the unit into the working position or withdraws it from the working position depending on the length dimensions of the beam or the like.
- feed devices are particularly advantageous if, for example, only parts of the surfaces of a beam, for example the visible surfaces of a purlin or the like, are to be planed and if the remaining surfaces of a beam are to remain unprocessed.
- control of the feed device of the unit can be implemented, for example, by means of a suitable program in which the dimensions of the planed and unplaned surfaces are entered.
- the bar 5 to be processed lies on a roller conveyor, the rollers 10 and 20 of which support the bar or guide it laterally.
- the direction of movement of the bar is shown by arrow 4.
- the units 1 and 2 are arranged opposite one another in such a way that the associated knife rollers 31 and 32 are able to machine the side surfaces.
- the unit 3 processes the underside of the bar, while a unit (not shown in detail) arranged above the unit 3 processes the top of the bar 5.
- Each unit consists of a knife roller 31 or 32 and 33, which is assigned a front shoe 11, 12 or 13 and a rear shoe 21, 22 or 23.
- the mutual position of the contact surfaces of the front shoe and the rear shoe determine the processing depth of the respective knife roller.
- the units 1 and 2 are mounted on feed devices 8 and 9, respectively, which are movable on rails 14, 15 and which, for example, act under the action of one working cylinder 16 or 17. It is clear that the cylinders 16 or 17 can bring the units into the working position or withdraw from the working position.
- the pressure in the working position can be achieved for example by the working cylinder 16 or 17, but it is also possible to use additional resilient means for this purpose, which are not shown in the drawing.
- the units 1 and 2 are each pivotable about the axis 6, which runs just before the respective knife axis 7. In the area of axis 6, the contact forces are also introduced into the units. In this way, it becomes possible that the unit 2 can not only machine the surface 18 of the beam 5, but also plane the inclined surface 19, as is customary, for example, in the case of visible purlin heads.
- the unit 3 can also be moved vertically to the image plane. However, the associated means are not shown in detail.
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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)
- Harvester Elements (AREA)
Abstract
Description
Die Erfindung betrifft eine Hobelmaschine mit zwei rotierenden Messerwalzen, zwischen denen der Balken oder dergleichen hindurchgeführt wird, wobei jeder Messerwalze ein Vorderschuh und ein Hinterschuh zugeordnet ist, und jede aus Vorderschuh, Messerwalze und Hinterschuh bestehende Einheit rechwinklig zur entsprechenden Bearbeitungsfläche beweglich gelagert und durch Anpreßkräfte gegen die Bearbeitungsfläche gedrückt ist.The invention relates to a planing machine with two rotating knife rollers, between which the bar or the like is passed, with each knife roller being assigned a front shoe and a rear shoe, and each unit consisting of a front shoe, knife roller and rear shoe being movably supported at right angles to the corresponding processing surface and against by pressing forces the working surface is pressed.
Eine Hobelmaschine der vorerwähnten Gattung ist durch die US-A-4 457 350 bekannt geworden. Zwischen zwei rotierenden Messerwalzen können Balken oder dergleichen hindurchgeführt werden, und durch die bewegliche Anordnung der Messerwalzen mit den zugehörigen Einrichtungen ist es möglich, Balken oder dergleichen auch dann an zwei gegenüberliegenden Flächen glatt zu hobeln, wenn die Balkendicke Veränderungen aufweist oder auch dann, wenn der Balken gekrümmt ist. Auf diese Weise wird die Nacharbeit insbesondere an der Innenseite einer Krümmung, die von Hand durchzuführen wäre, vermieden.A planing machine of the aforementioned kind has become known from US-A-4 457 350. Beams or the like can be passed between two rotating knife rollers be, and by the movable arrangement of the knife rollers with the associated devices, it is possible to plan beams or the like smooth on two opposite surfaces even if the bar thickness has changes or even if the bar is curved. In this way, rework is avoided, in particular on the inside of a curvature that would have to be carried out by hand.
Mit der bekannten Hobelmaschine lassen sich aber nur Werkstücke mit verhältnismäßig geringfügigen Maßungenauigkeiten bzw. leichten Krümmungen bearbeiten. Sind die Maßungenauigkeiten größer, muß die Bearbeitungstiefe durch entsprechende Ausbildung des Vorderschuhes und des Hinterschuhes vergrößert werden und ein erhöhter Materialverlust in Kauf genommen werden.With the known planing machine, however, only workpieces with relatively minor dimensional inaccuracies or slight curvatures can be machined. If the dimensional inaccuracies are greater, the machining depth must be increased by appropriate training of the front shoe and the rear shoe and an increased loss of material must be accepted.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Hobelmaschine der eingangs angegebenen Gattung dahingehend weiter zu entwicklen, daß auch Werkstücke mit geringem Materialverlust bearbeitet werden können, die größere Maßungenauigkeiten aufweisen, bzw. bei denen auch die einandergegenüberliegenden, zu bearbeitenden Flächen nicht parallel verlaufen.The invention is therefore based on the object of further developing a planing machine of the type specified at the outset in such a way that even workpieces with little material loss can be machined, which have greater dimensional inaccuracies, or in which the mutually opposite surfaces to be machined do not run parallel.
Zur Lösung dieser Aufgabe wird ausgegangen von einer Hobelmaschine der eingangs angegebenen Gattung. Erfindungsgemäß wird vorgeschlagen, daß mindestens eine Einheit um eine Achse parallel zur Messerachse verschwenkbar gelagert ist. Bei einer solchen Anordnung wird es möglich, daß die Einheit der Außenkontur eines Balkens folgt, ähnlich wie dies bisher nur bei einem handgeführten Hobel möglich erschien. Dabei bleiben alle Vorteile der Hobelmaschine erhalten.To solve this problem, it is assumed that a planing machine of the type specified at the outset. It is proposed according to the invention that at least one unit is mounted so as to be pivotable about an axis parallel to the knife axis. With such an arrangement, it becomes possible for the unit to follow the outer contour of a beam, in a manner similar to that previously only possible with a hand-operated planer. All the advantages of the planing machine are retained.
Insbesondere ist es bei der Erfindung möglich, beispielsweise auch Verjüngungen an Pfettenköpfen zu hobeln. Die Einheit folgt ohne besondere Einstellung einer solchen Verjüngung. Die Einheit ist auch in der Lage, aus der Fläche parallel zur Längsachse des Balkens in die Verjüngung umzuschwenken.In particular, it is possible with the invention, for example, to also plan tapering on purlin heads. The unit follows such a taper without special adjustment. The unit is also able to swivel into the taper from the surface parallel to the longitudinal axis of the beam.
Es ist gefunden worden, daß es günstig ist, wenn die Verschwenkachse ein geringes Maß vor der Messerachse angeordnet ist. Bei einer derartigen Anordnung wird ein sicheres Verschwenken der Einheit erreicht. Der Übergang zwischen den aneinander anschließenden mit den zueinander ausgerichteten Flächen wird dabei gerundet. Ungehobelte Flächen werden vermieden.It has been found that it is advantageous if the pivot axis is arranged a small amount in front of the knife axis. With such an arrangement, a secure pivoting of the unit is achieved. The transition between the adjoining and aligned surfaces is rounded. Unplaned areas are avoided.
Bei der erfindungsgemäßen Anordnung ist es leicht möglich, jede Hobeleinheit dem besonderen Zweck anzupassen. Beispielsweise kann die Spantiefe an jeder Messerwalze durch Ausrichtung des Vorderschuhs und des Hinterschuhs bestimmt werden. Auch ist es möglich, beispielsweise Schroppmesser einzusetzen, wenn bestimmte Sichtflächen in besonderer Weise bearbeitet werden sollen.With the arrangement according to the invention it is easily possible to adapt each planing unit to the special purpose. For example the depth of cut on each cutter block can be determined by aligning the front and rear shoe. It is also possible to use Schropp knives, for example, if certain visible surfaces are to be processed in a special way.
Schließlich schlägt die Erfindung gesteuerte Vorschubeinrichtungen für mindestens eine der Einheiten vor, welche Vorschubeinrichtung die Einheit in Abhängigkeit von Längenmaßen des Balkens oder dergleichen in Arbeitsstellung bringt oder aus der Arbeitsstellung zurückzieht. Derartige Vorschubeinrichtungen sind insbesondere dann von Vorteil, wenn beispielsweise nur Teile der Flächen eines Balkens, also beispielsweise die Sichtflächen einer Pfette oder dergleichen, gehobelt werden sollen, und wenn die übrigen Flächen eines Balkens unbearbeitet bleiben sollen. Es ist klar, daß die Steuerung der Vorschubeinrichtung der Einheit, beispielsweise durch ein geeignetes Programm verwirklichbar ist, in das die Abmessungen der gehobelten und ungehobelten Flächen eingegeben werden.Finally, the invention proposes controlled feed devices for at least one of the units, which feed device brings the unit into the working position or withdraws it from the working position depending on the length dimensions of the beam or the like. Such feed devices are particularly advantageous if, for example, only parts of the surfaces of a beam, for example the visible surfaces of a purlin or the like, are to be planed and if the remaining surfaces of a beam are to remain unprocessed. It is clear that the control of the feed device of the unit can be implemented, for example, by means of a suitable program in which the dimensions of the planed and unplaned surfaces are entered.
In der Zeichnung ist ein Ausführungsbeispiel einer erfindungsgemäßen Hobelmaschine schematisch in Draufsicht dargestellt.In the drawing, an embodiment of a planing machine according to the invention is shown schematically in plan view.
Der zu bearbeitende Balken 5 liegt auf einer Rollenbahn, deren Rollen 10 und 20 den Balken unterstützen bzw. seitlich führen. Die Bewegungsrichtung des Balkens ergibt sich durch den Pfeil 4.The bar 5 to be processed lies on a roller conveyor, the
Die Einheiten 1 und 2 sind einander gegenüberliegend angeordnet, derart, daß die zugehörigen Messerwalzen 31 und 32 in der Lage sind, die Seitenflächen zu bearbeiten. Die Einheit 3 bearbeitet die Unterseite des Balkens, während eine nicht näher dargestellte, über der Einheit 3 angeordnete Einheit die Oberseite des Balkens 5 bearbeitet.The
Jede Einheit besteht je aus einer Messerwalze 31 bzw. 32 und 33, der ein Vorderschuh 11, 12 oder 13 und ein Hinterschuh 21, 22 oder 23 zugeordnet ist. Die gegenseitige Lage der Anlageflächen des Vorderschuhs und des Hinterschuhs bestimmen die Bearbeitungstiefe der jeweiligen Messerwalze. Die Einheiten 1 und 2 sind auf Vorschubeinrichtungen 8 bzw. 9 gelagert, die auf Schienen 14, 15 beweglich sind und die beispielsweise unter der Wirkung je eines Arbeitszylinders 16 oder 17 stehen. Es ist klar, daß die Zylinder 16 oder 17 die Einheiten in Arbeitsstellung bringen können bzw aus der Arbeitsstellung zurückziehen können. Der Preßdruck in der Arbeitsstellung kann beispielsweise durch die Arbeitszylinder 16 oder 17 erzielt werden, es ist aber auch möglich, hierzu zusätzliche, federnde Mittel zu verwenden, die in der Zeichnung nicht näher dargestellt sind.Each unit consists of a
Die Einheiten 1 und 2 sind je um die Achse 6 verschwenkbar, die kurz vor der jeweiligen Messerachse 7 verläuft. Im Bereich der Achse 6 werden auch die Anpreßkräfte in die Einheiten eingeleitet. Auf diese Weise wird es möglich, daß die Einheit 2 nicht nur die Fläche 18 des Balkens 5 bearbeitet, sondern auch die geneigt ange-ordnete Fläche 19 abhobeln kann, wie dies beispielsweise bei sichtbaren Pfettenköpfen üblich ist.The
Anpreßkräfte in der Größe von etwa 30 daN sind in der Regel ausreichend.Contact forces of around 30 daN are usually sufficient.
Die Einheit 3 ist vertikal zur Bildebene ebenfalls verschiebbar. Die zugehörigen Mittel sind jedoch nicht näher dargestellt.The
Die Bewegungsmöglichkeit der Einheiten 1 und 2 unter der Wirkung der Vorschubeinrichtungen 8 und 9 ist durch die Pfeile 24 und 25 angedeutet.The possibility of movement of the
Claims (3)
- A planing machine having two rotary cylindrical cutters (31,32) between which the lumber (5) or the like is passed, each cylindrical cutter (31,32,33) being associated with a front shoe (11,12,13) and a rear shoe (21,22,23), and each unit (1,2,3) comprising a front shoe, a cylindrical cutter and a rear shoe, being movably supported at right angles to the corresponding machining surface and being urged against the machining surface by pressure forces, characterized in that at least one unit (1,2,3) is pivoted to swivel around an axle (6) parallel to the cutter axle (7).
- A planing machine according to claim 1, characterized in that the swivel axle (6) is arranged at a short distance before the cutter axle (7).
- A planing machine according to claim 1 or 2, characterized by controlled feed equipment (8,9) for at least one of the units (1,2) to place the unit in the working position subject to the length of the lumber (5) and/or to withdraw it from the working position.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88117956T ATE90905T1 (en) | 1987-10-30 | 1988-10-28 | PLANING MACHINE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873736826 DE3736826A1 (en) | 1987-10-30 | 1987-10-30 | PLANER |
DE3736826 | 1987-10-30 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0314152A2 EP0314152A2 (en) | 1989-05-03 |
EP0314152A3 EP0314152A3 (en) | 1991-04-17 |
EP0314152B1 true EP0314152B1 (en) | 1993-06-23 |
Family
ID=6339435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88117956A Expired - Lifetime EP0314152B1 (en) | 1987-10-30 | 1988-10-28 | Planing machine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0314152B1 (en) |
AT (1) | ATE90905T1 (en) |
DE (2) | DE3736826A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19703813C2 (en) * | 1997-01-27 | 1999-01-28 | Schmidler Maschinenbau Gmbh | Timber planing machine and joinery with planing machine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE266672C (en) * | ||||
US2309417A (en) * | 1940-05-18 | 1943-01-26 | George C Sapp | Wood planing machine |
GB809670A (en) * | 1955-08-03 | 1959-02-25 | Stenbergs Maskinbyra Ab | Wood planing machine |
DE1077415B (en) * | 1956-11-29 | 1960-03-10 | Maschb Kupfermuehle Gebr Schak | Additional device for four-sided planing and molding machines |
DE1227635B (en) * | 1960-03-23 | 1966-10-27 | Festo Maschf Stoll G | Rod milling machine for woodworking |
SE420579B (en) * | 1976-02-16 | 1981-10-19 | Skogsegarnas Vaenerind | HOOK CUTTING HOOK DEVICE |
US4457350A (en) * | 1980-07-03 | 1984-07-03 | Finnila John S | Lumber planing machine |
-
1987
- 1987-10-30 DE DE19873736826 patent/DE3736826A1/en not_active Withdrawn
-
1988
- 1988-10-28 DE DE8888117956T patent/DE3882008D1/en not_active Expired - Fee Related
- 1988-10-28 AT AT88117956T patent/ATE90905T1/en not_active IP Right Cessation
- 1988-10-28 EP EP88117956A patent/EP0314152B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0314152A3 (en) | 1991-04-17 |
EP0314152A2 (en) | 1989-05-03 |
ATE90905T1 (en) | 1993-07-15 |
DE3736826A1 (en) | 1989-05-11 |
DE3882008D1 (en) | 1993-07-29 |
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