EP0667217A1 - Rotary cutting tool - Google Patents
Rotary cutting tool Download PDFInfo
- Publication number
- EP0667217A1 EP0667217A1 EP95100946A EP95100946A EP0667217A1 EP 0667217 A1 EP0667217 A1 EP 0667217A1 EP 95100946 A EP95100946 A EP 95100946A EP 95100946 A EP95100946 A EP 95100946A EP 0667217 A1 EP0667217 A1 EP 0667217A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting
- tool
- cutting tool
- rotary cutting
- hard metal
- 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- Withdrawn
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/384—Cutting-out; Stamping-out using rotating drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
- B26F2001/4436—Materials or surface treatments therefore
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
- B26F2001/4481—Cutters therefor; Dies therefor having special lateral or edge outlines or special surface shapes, e.g. apertures
Definitions
- the invention relates to a rotary cutting tool with a cylindrical tool holder and at least one cutting tool arranged on the tool cylinder jacket for cutting workpieces.
- Rotary cutting tools of this type are used in particular for punching out closed contours from plastic, paper or so-called multi-layer composite foils, of which in particular for punching out hygiene wipes, bandages, inserts etc.
- the separation principle is essentially based on the fact that a cutting roller with the tool or tools rolls on an anvil drum, between which the films or individual pieces are guided. Because the cutting tools protrude from the lateral unrolling guides of the cutting roller and anvil, the material is first compressed and finally torn apart after the yield point has been exceeded.
- the shape of the cutting tools is known in principle from the prior art.
- Cutting tools are understood to mean in particular knife cutting tools, but also bite cutting, in which two wedge-shaped cutting edges are moved towards one another.
- the cutting tools can also be used to scratch any cutting contour in order to create a predetermined breaking point.
- Rotary cutting tools made from a one-piece steel body are known from the prior art, which do not always give satisfactory results in terms of hardness, toughness and abrasion resistance.
- a short service life has a negative effect, the end of which is determined by the blunting and flattening of the cutting tools. If the cutting tools or their cutting edges can no longer be reground, the tool must be replaced completely.
- Rotary cutting tools that have a tool holder (or basic tool holder) made of steel, which has tool holders on its casing, can be remedied with regard to a longer service life, inserted into the hard metal tools and screwed there. The same applies in the event that tool carriers with the tools are screwed onto the basic tool holder.
- the carbide tools have the advantage of a longer service life. In the case of small cutting knife penetration depths or cutting gaps, however, cutting inaccuracies or cutting errors occur in that the tool holder and the tool support have a certain surface roughness, on the basis of which the setting accuracy of the cutting knife fluctuates considerably with respect to the desired cutting depth.
- the carbide tool or a combined tool holder with tool that is screwed onto a basic tool holder have different elasticity modules and thermal expansion coefficients, e.g. steel 11.5 '10 -6 ° C-' to carbide 5.5. 10-6 * C- 1 , with the consequence of an indefinite, in particular excessive deflection of the rotary cutting tool during cutting.
- the rotary cutting tool according to claim 1 which is characterized according to the invention in that the cylindrical tool holder and the cutting tool or the cutting tools consist of a one-piece sintered hard metal body and that the cutting edge causing the cutting has a profile that is opposite the lateral guides of the tool holder slightly, preferably 0.05 to 2 ⁇ m.
- the one-piece design of the rotary cutting tool preferably as a hollow cylinder, which is attached to a shaft, is sufficiently low in deflection, i.e. it has sufficient rigidity.
- the cutting accuracy in particular is significantly improved.
- carbide is considerably more resistant to abrasion than steel, i.e. longer tool life can be achieved before the knife edges are reground.
- the cemented carbide consists of a fine grain mixture.
- Sintered hard metals are powder metallurgically created by compiling a starting mixture, the mixing, Grinding, pre-pressing and sintering and any necessary regrinding produced.
- Very fine grain mixtures in the above sense have a particle size before sintering of a maximum of 1 ⁇ m in diameter.
- the cemented carbide should preferably have an elastic modulus between 350,000 and 640,000.
- the resulting stiffness guarantees consistently good cutting results.
- the cutting wedge of the cutting edge is preferably asymmetrical in cross-sectional profile with respect to a tool holder surface normal, in particular the cutting wedge center line of a cross section has a curvature in the Z direction.
- the rotary cutting tool essentially consists of a cylindrical tool carrier 10 which has bores 11, with which this body can be fastened to a rotating shaft by means of screws.
- the cylindrical tool carrier 10 On its jacket side, the cylindrical tool carrier 10 carries one or more cutting tools 12, 13, the contour of which can be seen in more detail in FIG. 2.
- This is a closed or open cutting edge, which in the present case has a concave shape when viewed from the top. If desired, such as to create interrupted (perforated) cutting lines, the cutting edge can also be interrupted.
- the knife edge 12 or 13 does not necessarily have to protrude vertically from the tool carrier 10 as a wedge, but, in contrast, can be slightly tilted or even bent.
- the tool carrier 10 and the cutting tool or tools are in one piece and consist of a one-piece sintered hard metal body.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Drilling Tools (AREA)
Abstract
Description
Die Erfindung betrifft ein Rotationsschneidwerkzeug mit einem zylinderförmigen Werkzeugträger und mindestens einem auf dem Werkzeugzylindermantel angeordneten Schneidwerkzeug zum Zerteilen von Werkstücken.The invention relates to a rotary cutting tool with a cylindrical tool holder and at least one cutting tool arranged on the tool cylinder jacket for cutting workpieces.
Rotationsschneidwerkzeuge dieser Art werden insbesondere zum Ausstanzen von geschlossenen Konturen aus Kunststoff-, Papier- oder sogenannten mehrlagigen Verbundfolien verwendet, hiervon insbesondere zum Ausstanzen von Hygienetüchern, Binden, Einlagen etc.. Das Trennprinzip beruht im wesentlichen darauf, daß eine Schneidwalze mit dem oder den Werkzeugen auf einer Amboß-Trommel abrollt, wozwischen die genannten Folien oder Einzelstücke geführt werden. Dadurch, daß die Schneidwerkzeuge gegenüber den seitlichen Abroll-Führungen von Schneidwalze und Amboß überstehen, wird der Werkstoff zunächst gestaucht und schließlich nach Überschreitung der Fließgrenze auseinandergerissen. Die Form der Schneidwerkzeuge ist im Prinzip nach dem Stand der Technik bekannt. Unter Schneidwerkzeugen werden insbesondere Messerschneidwerkzeuge, aber auch Beißschneiden, bei denen zwei keilförmige Schneiden aufeinanderzu bewegt werden, verstanden.Rotary cutting tools of this type are used in particular for punching out closed contours from plastic, paper or so-called multi-layer composite foils, of which in particular for punching out hygiene wipes, bandages, inserts etc. The separation principle is essentially based on the fact that a cutting roller with the tool or tools rolls on an anvil drum, between which the films or individual pieces are guided. Because the cutting tools protrude from the lateral unrolling guides of the cutting roller and anvil, the material is first compressed and finally torn apart after the yield point has been exceeded. The shape of the cutting tools is known in principle from the prior art. Cutting tools are understood to mean in particular knife cutting tools, but also bite cutting, in which two wedge-shaped cutting edges are moved towards one another.
Die Schneidwerkzeuge können auch dazu benutzt werden, eine beliebige Schnittkontur anzuritzen, um hier eine Sollbruchstelle zu schaffen.The cutting tools can also be used to scratch any cutting contour in order to create a predetermined breaking point.
Nach dem Stand der Technik sind Rotationsschneidwerkzeuge aus einem einteiligen Stahlkörper bekannt, der hinsichtlich der Härte, der Zähigkeit, der Abrasionsfestigkeit nicht immer zufriedenstellende Ergebnisse liefert. Insbesondere wirkt sich eine kurze Standzeit negativ aus, deren Ende durch das Abstumpfen und die Abplattung der Schneidwerkzeuge bestimmt wird. Können die Schneidwerkzeuge bzw. deren Schneiden nicht mehr nachgeschliffen werden, muß das Werkzeug komplett erneuert werden.Rotary cutting tools made from a one-piece steel body are known from the prior art, which do not always give satisfactory results in terms of hardness, toughness and abrasion resistance. In particular, a short service life has a negative effect, the end of which is determined by the blunting and flattening of the cutting tools. If the cutting tools or their cutting edges can no longer be reground, the tool must be replaced completely.
Abhilfe hinsichtlich einer längeren Lebensdauer konnten solche Rotationsschneidwerkzeuge schaffen, die einen Werkzeugträger (oder Werkzeuggrundhalter) aus Stahl besitzen, der auf seinem Mantel Werkzeugaufnahmen besitzt, in die Hartmetallwerkzeuge eingelegt und dort angeschraubt werden. Entsprechendes gilt für den Fall, daß auf dem Werkzeuggrundhalter Werkzeugträger mit den Werkzeugen angeschraubt werden. Die Hartmetallwerkzeuge besitzen den Vorteil einer höheren Lebensdauer. Bei kleinen Schnittmessereindringtiefen bzw. Schneidspalt treten jedoch Schnittungenauigkeiten bzw. Schnittfehler dadurch auf, daß die Werkzeugaufnahme und die Werkzeugauflage eine gewisse Flächenrauhigkeit besitzen, aufgrund der die Einstellgenauigkeit des Schneidmessers in bezug auf die gewünschte Schnittiefe prozentual in erheblichem Maße schwankt. Darüber hinaus besitzen das Hartmetallwerkzeug oder ein kombinierter Werkzeugträger mit Werkzeug, der auf einem Werkzeuggrundhalter aufgeschraubt wird, unterschiedliche Elastizitätsmodule und thermische Ausdehnungskoeffizienten, z.B. Stahl 11.5 ' 10-6 ° C-' zu Hartmetall 5.5 . 10-6 * C-1, mit der Folge einer unbestimmten, insbesondere zu hohen Durchbiegung des Rotationsschneidwerkzeuges während des Schneidens.Rotary cutting tools that have a tool holder (or basic tool holder) made of steel, which has tool holders on its casing, can be remedied with regard to a longer service life, inserted into the hard metal tools and screwed there. The same applies in the event that tool carriers with the tools are screwed onto the basic tool holder. The carbide tools have the advantage of a longer service life. In the case of small cutting knife penetration depths or cutting gaps, however, cutting inaccuracies or cutting errors occur in that the tool holder and the tool support have a certain surface roughness, on the basis of which the setting accuracy of the cutting knife fluctuates considerably with respect to the desired cutting depth. In addition, the carbide tool or a combined tool holder with tool that is screwed onto a basic tool holder have different elasticity modules and thermal expansion coefficients, e.g. steel 11.5 '10 -6 ° C-' to carbide 5.5. 10-6 * C- 1 , with the consequence of an indefinite, in particular excessive deflection of the rotary cutting tool during cutting.
Es ist Aufgabe der vorliegenden Erfindung, ein Rotationsschneidwerkzeug zu schaffen, das eine optimale Standzeit bis zum abrasiven Verschleiß des Schneidwerkzeuges, eine gute Steifigkeit, eine hohe Härte und eine große Zähigkeit besitzt.It is an object of the present invention to provide a rotary cutting tool that has an optimum service life until the cutting tool is worn down, good rigidity, high hardness and great toughness.
Diese Aufgabe wird durch das Rotationsschneidwerkzeug nach Anspruch 1 gelöst, das erfindungsgemäß dadurch gekennzeichnet ist, daß der zylinderförmige Werkzeugträger und das Schneidwerkzeug oder die Schneidwerkzeuge aus einem einstückigen Sinterhartmetallkörper bestehen und daß die das Zerteilen bewirkende Schneide ein Profil aufweist, das gegenüber den seitlichen Führungen des Werkzeugträgers geringfügig, vorzugsweise 0,05 bis 2 um übersteht. Erst die einstückige Ausgestaltung des Rotationsschneidwerkzeuges, vorzugsweise als Hohlzylinder, der auf einer Welle befestigt wird, ist hinreichend durchbiegungsarm, d.h., besitzt eine ausreichende Steifigkeit. Hierdurch wird insbesondere die Schnittgenauigkeit wesentlich verbessert. Des weiteren ist Hartmetall im Vergleich zu Stahl erheblich abrasionsfester, d.h., es können längere Standzeiten bis zum Nachschleifen der Messerschneiden erzielt werden. Hierdurch erhöht sich auch die gesamte Lebensdauer des Rotationsschneidwerkzeuges. Hervorzuheben sind noch eine gegenüber Stahl größere Härte sowie eine ausgezeichnete Zähigkeit. Bei der Ausgestaltung der Schneide sind kleinere Überstände insbesondere für das Schneiden von dünnen Folien geeignet, während größere Überstände bei größeren Werkstückdicken zum Zerteilen notwendig werden. Die kleinen Überstände von 0,05 um lassen sich aufgrund der genannten hohen E-Module praktisch fehlerfrei einstellen.This object is achieved by the rotary cutting tool according to claim 1, which is characterized according to the invention in that the cylindrical tool holder and the cutting tool or the cutting tools consist of a one-piece sintered hard metal body and that the cutting edge causing the cutting has a profile that is opposite the lateral guides of the tool holder slightly, preferably 0.05 to 2 µm. Only the one-piece design of the rotary cutting tool, preferably as a hollow cylinder, which is attached to a shaft, is sufficiently low in deflection, i.e. it has sufficient rigidity. As a result, the cutting accuracy in particular is significantly improved. Furthermore, carbide is considerably more resistant to abrasion than steel, i.e. longer tool life can be achieved before the knife edges are reground. This also increases the overall life of the rotary cutting tool. Also to be emphasized is a greater hardness than steel and excellent toughness. In the design of the cutting edge, smaller protrusions are particularly suitable for cutting thin foils, while larger protrusions are necessary for cutting with larger workpiece thicknesses. The small protrusions of 0.05 µm can be set practically without errors due to the high E-modules mentioned.
Weiterentwicklungen der Erfindung sind in den Unteransprüchen beschrieben.Further developments of the invention are described in the subclaims.
So kann zwar grundsätzlich auf alle nach dem Stand der Technik bekannten Hartmetall zurückgegriffen werden, vorzugsweise wird jedoch ein Sinterhartmetall aus 6 bis 15 Massen-% Cobalt (als Binder), Rest Wolframcarbid zurückgegriffen. Dieses Sinterhartmetall hat den Vorteil eines relativ günstigen Werkstoffpreises bei guten mechanischen Eigenschaften.In principle, it is possible to use all of the hard metals known from the prior art, but preferably a sintered hard metal made from 6 to 15% by mass of cobalt (as binder), the rest being tungsten carbide. This cemented carbide has the advantage of a relatively low material price with good mechanical properties.
Nach einer weiteren Ausgestaltung der Erfindung besteht das Sinterhartmetall aus einer Feinstkornmischung. Sinterhartmetalle werden auf pulvermetallurgischem Wege durch Zusammenstellung einer Ausgangsmischung, deren Vermengung, Mahlung, Vorpressen und Sintern und ggf. notwendigen Nachschleifen hergestellt. Feinstkornmischungen in obengenanntem Sinne haben eine Partikelgröße vor dem Sintern von maximal 1 um im Durchmesser.According to a further embodiment of the invention, the cemented carbide consists of a fine grain mixture. Sintered hard metals are powder metallurgically created by compiling a starting mixture, the mixing, Grinding, pre-pressing and sintering and any necessary regrinding produced. Very fine grain mixtures in the above sense have a particle size before sintering of a maximum of 1 µm in diameter.
Vorzugsweise soll das Sinterhartmetall ein E-Modul zwischen 350.000 und 640.000 besitzen. Die hierdurch gegebene Steifigkeit (elastische geringe Verformung) garantiert gleichbleibend gute Schnittergebnisse.The cemented carbide should preferably have an elastic modulus between 350,000 and 640,000. The resulting stiffness (low elastic deformation) guarantees consistently good cutting results.
Zur Schnittverbesserung oder zur Erzeugung bestimmter Konturen der Schnittfläche im Werkstück wird der Schneidkeil der Schneide bevorzugt in bezug auf eine Werkzeughalterflächennormale im Querschnittsprofil unsymmetrisch ausgebildet, insbesondere weist die Schneidkeilmittellinie eines Querschnittes in Z-Richtung eine Krümmung auf.To improve the cut or to produce certain contours of the cut surface in the workpiece, the cutting wedge of the cutting edge is preferably asymmetrical in cross-sectional profile with respect to a tool holder surface normal, in particular the cutting wedge center line of a cross section has a curvature in the Z direction.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Es zeigen
- Fig. 1 eine Querschnittsansicht und
- Fig. 2 eine Draufsicht auf das Rotationsschneidwerkzeug.
- Fig. 1 is a cross-sectional view and
- Fig. 2 is a plan view of the rotary cutting tool.
Das Rotationsschneidwerkzeug besteht im wesentlichen aus einem zylinderförmigen Werkzeugträger 10, der Bohrungen 11 aufweist, womit dieser Körper auf einer rotierenden Welle mittels Schrauben befestigt werden kann. An seiner Mantelseite trägt der zylinderförmige Werkzeugträger 10 einen oder mehrere Schneidwerkzeuge 12, 13, deren Kontur aus Fig. 2 näher ersichtlich ist. Hierbei handelt es sich um eine geschlossene oder offene Schneide, die im vorliegenden Fall aus der Draufsicht betrachtet eine konkave Form hat. Falls gewünscht, wie zur Herstellung von unterbrochenen (perforierten) Schnittlinien, kann die Schneide auch unterbrochen sein. Die Messerschneide 12 oder 13 muß nicht zwingend von dem Werkzeugträger 10 senkrecht als Keil abstehen, sondern kann demgegenüber leicht gekippt oder sogar gebogen sein. In jedem Fall sind der Werkzeugträger 10 und das oder die Schneidwerkzeuge einteilig und bestehen aus einem einstückigen Sinterhartmetallkörper.The rotary cutting tool essentially consists of a
Claims (5)
dadurch gekennzeichnet,
daß der Werkzeugträger (10) und das/die Schneidwerkzeug(e) (12, 13) aus einem einstückigen Sinterhartmetallkörper bestehen und daß die das Zerteilen bewirkende Schneide (12, 13) ein Profil aufweist, das gegenüber den seitlichen Führungen des Werkzeugträgers (10) geringfügig, vorzugsweise 0,05 um bis 2 um übersteht.1. Rotary cutting tool with a cylindrical tool carrier (10) and at least one cutting tool (12, 13) arranged on the tool cylinder jacket for cutting workpieces,
characterized,
that the tool carrier (10) and the cutting tool (s) (12, 13) consist of a one-piece sintered hard metal body and that the cutting edge (12, 13) causing the cutting has a profile that is opposite the lateral guides of the tool carrier (10) slightly, preferably 0.05 µm to 2 µm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9402109U | 1994-02-09 | ||
| DE9402109U DE9402109U1 (en) | 1994-02-09 | 1994-02-09 | Rotary cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0667217A1 true EP0667217A1 (en) | 1995-08-16 |
Family
ID=6904328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95100946A Withdrawn EP0667217A1 (en) | 1994-02-09 | 1995-01-25 | Rotary cutting tool |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0667217A1 (en) |
| DE (1) | DE9402109U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1011018A5 (en) * | 1995-12-22 | 1999-04-06 | Matsushita Electric Ind Co Ltd | HITTING DEVICE AND HITTING METHOD. |
| EP1612014A1 (en) * | 2004-07-02 | 2006-01-04 | Sandvik Intellectual Property AB | A rotary cutter and a rotary cutting unit with such a rotary cutter |
| US8540795B2 (en) | 2008-12-18 | 2013-09-24 | Sandvik Intellectual Property Ab | Rotary cutter knife |
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| US3965786A (en) * | 1974-07-16 | 1976-06-29 | Moore Business Forms, Inc. | Rotary die cutter |
| WO1985002570A1 (en) * | 1983-12-06 | 1985-06-20 | Aren Bjoern | A method for manufacturing a tool suitable for cutting and/or shaping work, and a tool which has preferably been manufactured in accordance with the method |
| JPH02500A (en) * | 1987-10-29 | 1990-01-05 | Virginia Mason Res Center | Probe for diagnosing i-type diabetic diathesis |
| EP0396899A2 (en) * | 1989-04-14 | 1990-11-14 | Bobst S.A. | Cylinder-tool for a band- or plate-like material working rotative machine and realisation method |
| EP0401769A1 (en) * | 1989-06-06 | 1990-12-12 | Gerhardt, Jorgen | Device for carrying away punched out regions of material from a sheet-like material |
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| DE3806602A1 (en) * | 1988-03-02 | 1988-07-07 | Krupp Gmbh | CARBIDE BODY |
| ES2024255A6 (en) * | 1990-05-16 | 1992-02-16 | Comercial De Tecnologia Sanita | Continuous film tape cutting machine - passes tapes over cutter roller mounted on pivoting arms moved by cylinder with pressure control on each side of its piston |
-
1994
- 1994-02-09 DE DE9402109U patent/DE9402109U1/en not_active Expired - Lifetime
-
1995
- 1995-01-25 EP EP95100946A patent/EP0667217A1/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3952179A (en) * | 1974-05-08 | 1976-04-20 | Rockwell International Corporation | Rotary cutting die and method for its production |
| US3965786A (en) * | 1974-07-16 | 1976-06-29 | Moore Business Forms, Inc. | Rotary die cutter |
| WO1985002570A1 (en) * | 1983-12-06 | 1985-06-20 | Aren Bjoern | A method for manufacturing a tool suitable for cutting and/or shaping work, and a tool which has preferably been manufactured in accordance with the method |
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| PATENT ABSTRACTS OF JAPAN vol. 16, no. 431 (C - 0983) 9 September 1992 (1992-09-09) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1011018A5 (en) * | 1995-12-22 | 1999-04-06 | Matsushita Electric Ind Co Ltd | HITTING DEVICE AND HITTING METHOD. |
| EP1612014A1 (en) * | 2004-07-02 | 2006-01-04 | Sandvik Intellectual Property AB | A rotary cutter and a rotary cutting unit with such a rotary cutter |
| US8540795B2 (en) | 2008-12-18 | 2013-09-24 | Sandvik Intellectual Property Ab | Rotary cutter knife |
Also Published As
| Publication number | Publication date |
|---|---|
| DE9402109U1 (en) | 1994-03-31 |
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