EP0156934A1 - Tool for working non-metallic work pieces - Google Patents

Tool for working non-metallic work pieces Download PDF

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Publication number
EP0156934A1
EP0156934A1 EP84103634A EP84103634A EP0156934A1 EP 0156934 A1 EP0156934 A1 EP 0156934A1 EP 84103634 A EP84103634 A EP 84103634A EP 84103634 A EP84103634 A EP 84103634A EP 0156934 A1 EP0156934 A1 EP 0156934A1
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EP
European Patent Office
Prior art keywords
knife
cutter
cutter head
base
holding groove
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.)
Withdrawn
Application number
EP84103634A
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German (de)
French (fr)
Inventor
Fritz Vogelmann
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to EP84103634A priority Critical patent/EP0156934A1/en
Publication of EP0156934A1 publication Critical patent/EP0156934A1/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G13/00—Cutter blocks; Other rotary cutting tools
    • B27G13/02—Cutter blocks; Other rotary cutting tools in the shape of long arbors, i.e. cylinder cutting blocks
    • B27G13/04—Securing the cutters by mechanical clamping means

Definitions

  • the invention relates to a cutter head for machining non-metallic workpieces, which is equipped with at least two knives mounted and fastened in a base body, which are designed as indexable inserts and are held in a holding groove recessed in the base body by means of a clamping body.
  • Knife heads for processing non-metallic workpieces are known in various designs.
  • the cutter heads can be designed as a one-piece workpiece, the material of which can be an alloyed or high-alloyed tool steel, for example a tungsten or cobalt alloyed steel.
  • the cutter heads can be designed with carbide-tipped knives. These knives are mostly designed as indexable inserts and are fastened in a holding groove incorporated in the knife head body by means of a clamping element, the fastening being secure reasons of safety is both positively and non-positively formed.
  • the invention thus relates to a cutter head which is equipped with indexable inserts, and it is an object of the invention to design such a cutter head described at the outset that the indexable insert can be reground several times, but regardless of the number of regrinding operations which result in one lead to a corresponding reduction in the dimensions of the knife, the cutting edge of the indexable insert is mounted in an optimal position with respect to the knife head body and is fastened and secured in a positive and non-positive manner.
  • the knife is secured by at least one locking pin which is adjustable in its position and which projects into a bore in the knife, and is positioned on a knife rest which is interchangeably mounted in the holding groove.
  • the knife support is expediently designed as a support plate which is only inserted into the holding groove, so that it can easily be replaced by another support plate which ensures the correct position of the reground wall cutting insert.
  • the cutter head partially shown in FIG. 1 has a circular cylindrical cutter head body 1, in which a holding groove 2 is incorporated. At least two holding grooves 2 are arranged in pairs in the cutter head body 1, of which a holding groove 2 is shown in FIG. 1.
  • the holding grooves 2 serve to mount a knife 3, which is designed as an indexable insert.
  • the knife 3 has two cutting edges 4, 4 ', of which the cutting edge 4 is in the working position, in which the cutting edge 4 protrudes somewhat over the peripheral surface of the cutter head body 1.
  • the support plate 5 has an edge 6 which is beveled in accordance with the cutting angle of the knife 3. The knife 3 can thus be supported with its cutting edge 4 'on the support plate 5.
  • the on Location plate 5 is inserted into a groove 7 incorporated in the cutter head body 1, which extends over the width of the cutter head body 1, see FIG. 4.
  • a blind hole 8 can be seen in FIG Nut 7 protrudes.
  • a bolt 9, which cuts the groove 7, is inserted into the bore 8.
  • a recess 10 is machined in the support plate 5, into which the bolt 9 projects when the support plate 5 is inserted into the groove 7.
  • the knife 3 in the form of an indexable insert has two circular-cylindrical bores 11 which can be used for the positive locking of the knife 3.
  • the knife 3 is pressed onto the one side wall of the holding groove 2 by means of a clamping body 12.
  • the pressing force for this is applied by two screw bolts 13, only one of which is visible in FIG. 1, which are screwed into the cutter head body and act on pressure surfaces 15 in the clamping body 12, which lie in a recess 16 of the clamping body 12 and approximately perpendicular to Axis of the bolts 13 ver running.
  • the screw bolts 13 are screwed into a bore 14 in the knife body 1 and can be tightened from the peripheral side by means of a suitable wrench, which can be inserted, for example, into an internal hexagon bore 17.
  • the clamping body 12 has two circular-cylindrical bores 19, into which a base 20 is inserted, which carries a locking pin 21.
  • the locking pin 21 projects, see FIG. 1, into the bore 11 of the knife 3.
  • two bores 19 are also provided in the clamping body 12 for receiving two bases 20 with a locking pin 21.
  • the circular cylindrical base 20 is rotatable in the bore 19 and the locking pin 21 is arranged eccentrically to the axis of rotation of the base 20.
  • a knife is inserted and clamped in that a corresponding support plate 5 is inserted into the groove 7 located in the holding groove 2 and then the knife 3 with the clamping body 12 is inserted in the holding groove 2 and the knife is struck against the edge 6 of the support plate 5.
  • the locking pins 21 can adapt to the position of the bores 11 in the knife 3 by rotating the base 20 in the bore 19.
  • the clamping body 12 is then clamped with the aid of the screw bolts 13.
  • the support plate 5 has a somewhat smaller thickness than the knife 3 and thereby hinders the tensioning of knife 3 not. Since at least two knives are arranged in a knife head body 1, it is possible to use the same support plates 5 to achieve the same flight circle for the knife edges 4.
  • the optimal position of the knife edge 4 can be maintained by inserting the corresponding support plate 5.
  • This type of knife attachment can be used regardless of the diameter and cutting width of the knife head and regardless of the number of knives 3. It is essential that the expensive raw material of the knife 3 can be used much better, which also results in a corresponding cost reduction, because the sharpening of the knife is much cheaper than the premature replacement of the knife.
  • the support plate 5 is arranged in this case at the bottom of the holding groove 2.
  • the bolt 9 is retained, so that a recess must accordingly be provided in the clamping body 12.
  • the base 20 with the locking pin 21 is shown in two parts in FIGS. 1 and 3, but the two parts can be made in one piece.

Abstract

In the cutter head member (1) at least two retaining slots (2) are made, into which a cutter (3) and a clamping member (12) are inserted and clamped by means of screw bolts (13). The cutter (3) rests against a supporting plate (5) which is inserted in a slot (7) at the base of the retaining slot (2) and is centred by a bolt (9). Mounted in the clamping member (12) is a socket (20) having a securing pin (21) arranged eccentrically thereto; the latter projects into a bore (11) in the cutter (3). If the cutter (3) is resharpened, the optimal position of its cutting edge (4) with respect to the cutter head member (1) can still be maintained by replacing the supporting plate (5) with another, suitable supporting plate and bringing the securing pin (21) into a position corresponding to the new position of the cutter (3). As a result, the cutter (3) can be better utilised by resharpening it many times, which also results in a lowering of the operating costs. <IMAGE>

Description

Die Erfindung betrifft einen Messerkopf für die Bearbeitung von nichtmetallischen Werkstücken, der mit mindestens zwei, in einem Grundkörper gelagerten und befestigten Messern ausgerüstet ist, die als Wendeschneidplatten ausgebildet und mittels eines Spannkörpers in einer in dem Grundkörper ausgesparten Haltenut gehalten sind.The invention relates to a cutter head for machining non-metallic workpieces, which is equipped with at least two knives mounted and fastened in a base body, which are designed as indexable inserts and are held in a holding groove recessed in the base body by means of a clamping body.

Messerköpfe für die Bearbeitung von nichtmetallischen Werkstücken sind in verschiedenen Ausführungen bekannt. Hierbei werden unter nichtmetallischen Werkstücken im Zusammenhang mit der Erfindung Werkstücke aus Holz, Kunststoff, Verbundstoff o.dgl. verstanden. Für nicht zu hohe Umfangsgeschwindigkeiten können die Messerköpfe als einteiliges Werkstück ausgeführt sein, dessen Material ein legierter oder hochlegierter Werkzeugstahl, z.B. ein wolfram- oder kobaltlegierter Stahl, sein kann. Sind Materialien zu bearbeiten, die eine stark abrasive Wirkung auf die Schneidpartien des Messerkopfes ausüben, ist es bekannt, Messerköpfe mit hartmetallbestückten Messern einzusetzen. Diese Messer sind meistens als Wendeschneidplatten ausgebildet und werden in einer, im Meserkopfkörper eingearbeiteten Haltenut mittels eines Spannelementes befestigt, wobei die Befestigung aus Sicherheitsgründen sowohl form- als auch kraftschlüssig ausgebildet wird.Knife heads for processing non-metallic workpieces are known in various designs. Here, among non-metallic workpieces in connection with the invention workpieces made of wood, plastic, composite or the like. Roger that. For circumferential speeds that are not too high, the cutter heads can be designed as a one-piece workpiece, the material of which can be an alloyed or high-alloyed tool steel, for example a tungsten or cobalt alloyed steel. If materials are to be processed that have a highly abrasive effect on the cutting parts of the cutter head, it is known to use cutter heads with carbide-tipped knives. These knives are mostly designed as indexable inserts and are fastened in a holding groove incorporated in the knife head body by means of a clamping element, the fastening being secure reasons of safety is both positively and non-positively formed.

Diese Art der Befestigung stellt eine bewährte, zuverlässige Lösung dar, die im Zusammenhang mit der Erfindung ebenfalls Verwendung findet. Nachteilig ist bei dieser Befestigungsart, dass die Wendeschneidplatte nur ein- bis zweimal nachgeschliffen werden kann.This type of attachment represents a proven, reliable solution, which is also used in connection with the invention. The disadvantage of this type of fastening is that the insert can only be reground once or twice.

Die Erfindung betrifft somit einen Messerkopf, der mit Wendeschneidplatten bestückt ist, und es ist Aufgabe der Erfindung, einen solchen, eingangs beschriebenen Messerkopf so auszugetalten, dass die Wendeschneidplatte mehrere Male nachgeschliffen werden kann, wobei jedoch unabhängig von der Zahl der Nachschleiffoperationen, die zu einer entsprechenden Verkleinerung der Dimensionen des Messers führen, die Schneide derWendeschneidplatte in optimaler Lage zum Messerkopfkörper gelagert und in form- und kraftschlüssiger Weise befestigt und gesichert ist.The invention thus relates to a cutter head which is equipped with indexable inserts, and it is an object of the invention to design such a cutter head described at the outset that the indexable insert can be reground several times, but regardless of the number of regrinding operations which result in one lead to a corresponding reduction in the dimensions of the knife, the cutting edge of the indexable insert is mounted in an optimal position with respect to the knife head body and is fastened and secured in a positive and non-positive manner.

Diese Aufgabe wird gemäss der Erfindung dadurch gelöst, dass das Messer durch mindestens einen in seiner Lage verstellbaren Sicherungsstift, der in eine Bohrung des Messers ragt, gesichert und an einer Messerauflage positioniert ist, die in der Haltenut auswechselbar gelagert ist.This object is achieved according to the invention in that the knife is secured by at least one locking pin which is adjustable in its position and which projects into a bore in the knife, and is positioned on a knife rest which is interchangeably mounted in the holding groove.

Zweckmässig ist die Messerauflage als Auflageplatte ausgebildet, die in die Haltenut nur eingelegt wird, so dass sie leicht durch eine andere Auflageplatte ersetzt werden kann, die die jeweils richtige Lage der nachgeschliffenen Wändeschneidplatte gewährleistet.The knife support is expediently designed as a support plate which is only inserted into the holding groove, so that it can easily be replaced by another support plate which ensures the correct position of the reground wall cutting insert.

Die Erfindung ist in der Zeichnung in einem Ausführungsbeispiel dargelegt und nachfolgend beschrieben. Es zeigen:

  • Fig. 1 eine Teilansicht eines Messerkopfes, teilweise im Schnitt,
  • Fig. 2 eine Seitenansicht eines Spannkörpers für den Messerkopf,
  • Fig. 3 einen Schnitt längs der Linie III - III in Fig. 2,
  • Fig. 4 einen Schnitt längs der Linie IV - IV in Fig. 1 und
  • Fig. 5 eine Seitenansicht einer in die Haltenut des Messerkopfes einzusetzen bestimmte Auflageplatte.
The invention is shown in the drawing in an embodiment and described below. Show it:
  • 1 is a partial view of a cutter head, partially in section,
  • 2 is a side view of a clamping body for the cutter head,
  • 3 shows a section along the line III-III in FIG. 2,
  • Fig. 4 is a section along the line IV - IV in Fig. 1 and
  • Fig. 5 is a side view of a particular support plate to be inserted into the holding groove of the cutter head.

Der in Fig. 1 teilweise dargestellte Messerkopf weist einen kreiszylindrischen Messerkopfkörper 1 auf, in welchem eine Haltenut 2 eingearbeitet ist. Im Messerkopfkörper 1 sind mindestens zwei Haltenuten 2 paarweise angeordnet, von denen in Fig. 1 eine Haltenut 2 dargestellt ist. Die Haltenuten 2 dienen der Lagerung eines Messers 3, das als Wendeschneidplatte ausgebildet ist. Das Messer 3 weist zwei Schneiden 4, 4' auf, von denen die Schneide 4 sich in der Arbeitslage befindet, bei welcher die Schneide 4 etwas über die Umfangsfläche des Messerkopfkörpers 1 ragt. Die Schneide 4' liegt an einer Auflageplatte 5 an, die in Fig. 5 dargestellt ist. Die Auflageplatte 5 weist eine Kante 6 auf, die entsprechend dem Schneidwinkel des Messers 3 angeschrägt ist. Das Messer 3 kann sich somit mit seiner Schneide 4' auf der Auflageplatte 5 abstützen. Die Auflageplatte 5 ist in eine im Messerkopfkörper 1 eingearbeitete Nut 7 eingesetzt, die sich über die Breite des Messerkopfkörpers 1 erstreckt, siehe Fig. 4. Aus Fig. 4 ist eine Sacklochbohrung 8 erkennbar, die in der Mitte des Messerkopfkörpers 1 liegt und teilweise in die Nut 7 ragt. In die Bohrung 8 ist ein Bolzen 9 eingesetzt, der die Nut 7 schneidet. In der Auflageplatte 5 ist eine Ausnehmung 10 eingearbeitet, in die der Bolzen 9 ragt, wenn die Auflageplatte 5 in die Nut 7 eingesetzt wird. Dadurch wird die Auflageplatte 5 genau auf den Messerkopfkörper 1 ausgerichtet und bildet mit ihrer angeschrägten Kante 6 die Anschlagfläche für die Schneide 4' des Messers 3. Werden nun Auflageplatten 5 mit unterschiedlichen Höhen bereitgestellt, kann das Messer 3 unabhängig davon, wie oft die Schneiden 4, 4' nachgeschärft werden, immer in der richtigen Lage zum Messerkopfkörper 1 auf eine entsprechende Auflageplatte 5 abgestützt und befestigt werden.The cutter head partially shown in FIG. 1 has a circular cylindrical cutter head body 1, in which a holding groove 2 is incorporated. At least two holding grooves 2 are arranged in pairs in the cutter head body 1, of which a holding groove 2 is shown in FIG. 1. The holding grooves 2 serve to mount a knife 3, which is designed as an indexable insert. The knife 3 has two cutting edges 4, 4 ', of which the cutting edge 4 is in the working position, in which the cutting edge 4 protrudes somewhat over the peripheral surface of the cutter head body 1. The cutting edge 4 'rests on a support plate 5, which is shown in FIG. 5. The support plate 5 has an edge 6 which is beveled in accordance with the cutting angle of the knife 3. The knife 3 can thus be supported with its cutting edge 4 'on the support plate 5. The on Location plate 5 is inserted into a groove 7 incorporated in the cutter head body 1, which extends over the width of the cutter head body 1, see FIG. 4. A blind hole 8 can be seen in FIG Nut 7 protrudes. A bolt 9, which cuts the groove 7, is inserted into the bore 8. A recess 10 is machined in the support plate 5, into which the bolt 9 projects when the support plate 5 is inserted into the groove 7. As a result, the support plate 5 is aligned precisely with the cutter head body 1 and, with its beveled edge 6, forms the abutment surface for the cutting edge 4 'of the knife 3 , 4 'are sharpened, are always supported and fastened in the correct position relative to the cutter head body 1 on a corresponding support plate 5.

Die weitergehende Ausnützung des Messers 3 durch mehrmaliges Nachschärfen kann jedoch nur dann verwirklicht werden, wenn auch die formschlüssige Sicherung des Messers 3 die entsprechende Verschiebung des Messers 3 ermöglicht. Das als Wendeschneidplatte vorliegende Messer 3 weist zwei kreiszylindrische Bohrungen 11 auf, die für die formschlüssige Sicherung des Messers 3 verwendet werden können. Das Messer 3 wird mittels eines Spannkörpers 12 an die eine Seitenwand der Haltenut 2 gepresst. Die Presskraft hierzu wird durch zwei Schraubenbolzen 13, von denen nur einer in Fig. 1 sichtbar ist, aufgebracht, die in den Messerkopfkörper eingeschraubt sind und auf Druckflächen 15 im Spannkörper 12 wirken, die in einer Vertiefung 16 des Spannkörpers 12 liegen und etwa senkrecht zur Achse der Schraubenbolzen 13 verläuft. Die Schraubenbolzen 13 sind in eine Bohrung 14 des Messerkörpers 1 eingeschraubt und können von der Umfangsseite her mittels eines geeigneten Schlüssels festgezogen werden, der beispielsweise in eine Innensechskantbohrung 17 eingesetzt werden kann.However, further use of the knife 3 by repeated resharpening can only be achieved if the positive locking of the knife 3 also enables the knife 3 to be shifted accordingly. The knife 3 in the form of an indexable insert has two circular-cylindrical bores 11 which can be used for the positive locking of the knife 3. The knife 3 is pressed onto the one side wall of the holding groove 2 by means of a clamping body 12. The pressing force for this is applied by two screw bolts 13, only one of which is visible in FIG. 1, which are screwed into the cutter head body and act on pressure surfaces 15 in the clamping body 12, which lie in a recess 16 of the clamping body 12 and approximately perpendicular to Axis of the bolts 13 ver running. The screw bolts 13 are screwed into a bore 14 in the knife body 1 and can be tightened from the peripheral side by means of a suitable wrench, which can be inserted, for example, into an internal hexagon bore 17.

Auf der messerseitigen Fläche, siehe Fig. 2 und 3 weist der Spannkörper 12 zwei kreiszylinderförmige Bohrungen 19 auf, in die ein Sockel 20 eingesetzt ist, der einen Sicherungsstift 21 trägt. Der Sicherungsstift 21 ragt, siehe Fig. 1, in die Bohrung 11 des Messers 3. Entsprechend den beiden Bohrungen 11 im Messer 3 sind auch im Spannkörper 12 zwei Bohrungen 19 zur Aufnahme von zwei Sockeln 20 mit Sicherungsstift 21 vorgesehen. Der kreiszylindrische Sockel 20 ist in der Bohrung 19 drehbar und der Sicherungsstift 21 exzentrisch zur Drehachse des Sockels 20 angeordnet. Durch Drehen des Sockels 20 wird die Lage des Sicherungsstiftes 1 gegenüber der Bohrung 11 des Messers 3 geändert. Damit kann sich der Sicherungsstift 21 der Lage der Bohrung 11 des Messers 3 anpassen, die sich verschiebt, je nachdem, wie oft es nachgeschärft wurde.On the knife-side surface, see FIGS. 2 and 3, the clamping body 12 has two circular-cylindrical bores 19, into which a base 20 is inserted, which carries a locking pin 21. The locking pin 21 projects, see FIG. 1, into the bore 11 of the knife 3. Corresponding to the two bores 11 in the knife 3, two bores 19 are also provided in the clamping body 12 for receiving two bases 20 with a locking pin 21. The circular cylindrical base 20 is rotatable in the bore 19 and the locking pin 21 is arranged eccentrically to the axis of rotation of the base 20. By turning the base 20, the position of the locking pin 1 relative to the bore 11 of the knife 3 is changed. The locking pin 21 can thus adapt to the position of the bore 11 of the knife 3, which shifts depending on how often it has been resharpened.

Das Einstzen und Spannen eines Messers erfolgt dadurch, dass eine entsprechende Auflageplatte 5 in die in der Haltenut 2 liegende Nut 7 und dann das Messer 3 mit dem Spannkörper 12 in die Haltenut 2 eingesetzt und das Messer an die Kante 6 der Auflageplatte 5 angeschlagen wird. Die Sicherungstifte 21 können sich hierbei der Lage der Bohrungen 11 im Messer 3 durch Drehen des Sockels 20 in der Bohrung 19 anpassen. Anschliessend wird der Spannkörper 12 mit Hilfe der Schraubenbolzen 13 festgespannt. Die Auflageplatte 5 weist eine etwas kleinere Stärke als das Messer 3 auf und behindert dadurch das Spannen des Messers 3 nicht. Da in einem Messerkopfkörper 1 mindestens zwei Messer angeordnet sind, ist es durch das Einsetzen entsprechender Auflageplatten 5 möglich, denselben Flugkreis für die Messerschneiden 4 zu erreichen. Auch nach vielfachem Nachschärfen des Messers ist die optimale Lage der Messerschneide 4 durch Einsetzen der entsprechenden Auflageplatte 5 einhaltbar. Diese Art der Messerbefestigung kann unabhängig vom Durchmesser und der Schnittbreite des Messerkopfes und unabhängig von der Zahl der Messer 3 eingesetzt werden. Wesentlich ist, dass hierbei der teure Rohstoff des Messers 3 viel besser ausgenützt werden kann, woraus auch eine entsprechende Kostenverminderung eintritt, denn das Nachschärfen des Messers ist wesentlich kostengünstiger als das vorzeitige Ersetzen des Messers.A knife is inserted and clamped in that a corresponding support plate 5 is inserted into the groove 7 located in the holding groove 2 and then the knife 3 with the clamping body 12 is inserted in the holding groove 2 and the knife is struck against the edge 6 of the support plate 5. The locking pins 21 can adapt to the position of the bores 11 in the knife 3 by rotating the base 20 in the bore 19. The clamping body 12 is then clamped with the aid of the screw bolts 13. The support plate 5 has a somewhat smaller thickness than the knife 3 and thereby hinders the tensioning of knife 3 not. Since at least two knives are arranged in a knife head body 1, it is possible to use the same support plates 5 to achieve the same flight circle for the knife edges 4. Even after multiple sharpening of the knife, the optimal position of the knife edge 4 can be maintained by inserting the corresponding support plate 5. This type of knife attachment can be used regardless of the diameter and cutting width of the knife head and regardless of the number of knives 3. It is essential that the expensive raw material of the knife 3 can be used much better, which also results in a corresponding cost reduction, because the sharpening of the knife is much cheaper than the premature replacement of the knife.

Es ist auch möglich, die Nut 7 für das Einsetzen der Auflageplatte 5 wegzulassen. Die Auflageplatte 5 wird in diesem Fall am Grund der Haltenut 2 angeordnet. Der Bolzen 9 wird dagegen beibehalten, so dass dementsprechend eine Ausnehmung im Spannkörper 12 vorgesehen werden muss.It is also possible to omit the groove 7 for the insertion of the support plate 5. The support plate 5 is arranged in this case at the bottom of the holding groove 2. In contrast, the bolt 9 is retained, so that a recess must accordingly be provided in the clamping body 12.

Der Sockel 20 mit dem Sicherungsstift 21 ist in Fig. 1 und 3 zweiteilig dargestellt, jedoch können die beiden Teile aus einem Stück gefertigt werden.The base 20 with the locking pin 21 is shown in two parts in FIGS. 1 and 3, but the two parts can be made in one piece.

Claims (7)

1. Messerkopf für die Bearbeitung von nichtmetallischen Werkstücken, der mit mindestens zwei in einem Messerkopfkörper (1) gelagerten und befestigten Messern (3) ausgerüstet ist, die als Wendeschneidplatten ausgebildet und mittels eines Spannkörpers (12) in einer in dem Messerkopfkörper ausgesparten Haltenut (2) gehalten sind, dadurch gekennzeichnet, dass das Messer durch mindestens einen in seiner Lage verstellbaren Sicherungsstift (21), der in eine Bohrung (11) des Messers (3) gesichert und an einer Messerauflage (5) positioniert ist, die in der Haltenut (2) auswechselbar gelagert ist.1.Knife head for machining non-metallic workpieces, which is equipped with at least two knives (3) which are mounted and fastened in a cutter head body (1), which are designed as indexable inserts and by means of a clamping body (12) in a holding groove (2 ), characterized in that the knife is secured by at least one locking pin (21) which is adjustable in its position, which is secured in a bore (11) of the knife (3) and is positioned on a knife rest (5) which is in the holding groove ( 2) is interchangeably mounted. 2. Messerkopf nach Anspruch 1, dadurch gekennzeichnet, dass der Sicherungsstift (21) auf einem Sockel (20) angeordnet ist, der in einer Bohrung (19) auf der messerseitigen Fläche (18) des Spannkörpers (12) gelagert ist.2. Cutter head according to claim 1, characterized in that the locking pin (21) is arranged on a base (20) which is mounted in a bore (19) on the knife-side surface (18) of the clamping body (12). 3. Messerkopf nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Sockel (20) Kreiszylinderform aufweist und in der Bohrung (19) drehbar gelagert ist.3. Cutter head according to claim 1 or 2, characterized in that the base (20) has a circular cylindrical shape and is rotatably mounted in the bore (19). 4. Messerkopf nach Anspruch 3, dadurch gekennzeichnet, dass der Sicherungsstift (21) in exzentrischer Lage zum Sockelzentrum auf dem Sockel (20) angeordnet ist.4. Cutter head according to claim 3, characterized in that the locking pin (21) is arranged in an eccentric position to the base center on the base (20). 5. Messerkopf nach Anspruch 1, dadurch gekennzeichnet, dass die Messerauflage eine in die Haltenut (2) eingelegte Auflageplatte (5) ist, die eine geringere Plattenstärke aufweist als die Stärke des Messers (3).5. Cutter head according to claim 1, characterized in that the knife support is a support plate (5) inserted into the holding groove (2), which has a smaller plate thickness than the thickness of the knife (3). 6. Messerkopf nach Anspruch 5, dadurch gekennzeichnet, dass die Auflageplatte (5) auf der dem Messer (3) abgewandten Seite eine Ausnehmung (10) aufweist, in die ein im Grund der Haltenut eingesetzter Vorsprung, z.B. ein Bolzen (9), ragt.6. Knife head according to claim 5, characterized in that the support plate (5) on the side facing away from the knife (3) has a recess (10) into which a projection inserted in the base of the holding groove, e.g. a bolt (9) protrudes. 7. Messerkopf nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die Auflageplatte 5 in einer im Grund der Haltenut (2) eingearbeiteten Nut (7) gelagert ist.7. Cutter head according to claim 5 or 6, characterized in that the support plate 5 is mounted in a groove (7) incorporated in the base of the holding groove (2).
EP84103634A 1984-04-02 1984-04-02 Tool for working non-metallic work pieces Withdrawn EP0156934A1 (en)

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EP84103634A EP0156934A1 (en) 1984-04-02 1984-04-02 Tool for working non-metallic work pieces

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EP84103634A EP0156934A1 (en) 1984-04-02 1984-04-02 Tool for working non-metallic work pieces

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9210363U1 (en) * 1992-08-03 1993-01-21 Gebr. Leitz Gmbh & Co, 7082 Oberkochen, De
WO1997013627A1 (en) * 1995-10-12 1997-04-17 Bmh Wood Technology Ab Method and device in wood chipping machines
US5660218A (en) * 1993-07-08 1997-08-26 Sunds Defibrator Woodhandling Oy Blade system to be used in wood chipping, a blade; a guide member and a filler member as well as a method for changing blades
DE10005467A1 (en) * 2000-02-08 2001-08-16 Stehle Gmbh & Co Kg Cutter head
WO2008149170A1 (en) * 2007-06-05 2008-12-11 Nv De Jonckheere M. Cutting unit for a rotating milling head

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB199324A (en) * 1922-11-22 1923-06-21 Henry Shaw Improvements in or relating to circular cutters for planing and other similar machines
FR681664A (en) * 1929-09-12 1930-05-17 Improvements to knife shafts of wood planing machines
DE2411978A1 (en) * 1974-03-13 1975-09-25 Maier Kg Maschf B Wood-chipping machine cutter spindle
DE2517760A1 (en) * 1975-04-22 1976-11-04 Buerener Maschf Gmbh Wood chipping machine knife support - has series of separate knives with angled cutters to form comb like edge
FR2348026A1 (en) * 1976-04-15 1977-11-10 Pallmann Kg Maschf Chipping machine striker wheel guide vane wearing plate - has fixture involving oval aperture for eccentric headed screw head
EP0004312A1 (en) * 1978-03-17 1979-10-03 Karl M. Reich, Maschinenfabrik GmbH Planing head having removable reversible knives
EP0024993A1 (en) * 1979-08-30 1981-03-11 Marcel Luc Amédée Paulve Forest chopper
DE3228852A1 (en) * 1972-03-24 1983-04-21 Inter-Wood-Maschinen GmbH & Co KG, 8923 Lechbruck Knife arrangement for angular-cutting knife rolls

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB199324A (en) * 1922-11-22 1923-06-21 Henry Shaw Improvements in or relating to circular cutters for planing and other similar machines
FR681664A (en) * 1929-09-12 1930-05-17 Improvements to knife shafts of wood planing machines
DE3228852A1 (en) * 1972-03-24 1983-04-21 Inter-Wood-Maschinen GmbH & Co KG, 8923 Lechbruck Knife arrangement for angular-cutting knife rolls
DE2411978A1 (en) * 1974-03-13 1975-09-25 Maier Kg Maschf B Wood-chipping machine cutter spindle
DE2517760A1 (en) * 1975-04-22 1976-11-04 Buerener Maschf Gmbh Wood chipping machine knife support - has series of separate knives with angled cutters to form comb like edge
FR2348026A1 (en) * 1976-04-15 1977-11-10 Pallmann Kg Maschf Chipping machine striker wheel guide vane wearing plate - has fixture involving oval aperture for eccentric headed screw head
EP0004312A1 (en) * 1978-03-17 1979-10-03 Karl M. Reich, Maschinenfabrik GmbH Planing head having removable reversible knives
EP0024993A1 (en) * 1979-08-30 1981-03-11 Marcel Luc Amédée Paulve Forest chopper

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9210363U1 (en) * 1992-08-03 1993-01-21 Gebr. Leitz Gmbh & Co, 7082 Oberkochen, De
US5660218A (en) * 1993-07-08 1997-08-26 Sunds Defibrator Woodhandling Oy Blade system to be used in wood chipping, a blade; a guide member and a filler member as well as a method for changing blades
EP0707529B1 (en) * 1993-07-08 1998-05-13 Sunds Defibrator Woodhandling Oy A blade system to be used in wood chipping, a blade, a guide member and a filler member as well as a method for changing blades
WO1997013627A1 (en) * 1995-10-12 1997-04-17 Bmh Wood Technology Ab Method and device in wood chipping machines
DE10005467A1 (en) * 2000-02-08 2001-08-16 Stehle Gmbh & Co Kg Cutter head
US6378578B2 (en) 2000-02-08 2002-04-30 Stehle Gmbh & Co. Kg Cutter head
WO2008149170A1 (en) * 2007-06-05 2008-12-11 Nv De Jonckheere M. Cutting unit for a rotating milling head

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