EP1170099A2 - Cutting die for producing openings in a workpiece made of thermoplastic material - Google Patents
Cutting die for producing openings in a workpiece made of thermoplastic material Download PDFInfo
- Publication number
- EP1170099A2 EP1170099A2 EP01108679A EP01108679A EP1170099A2 EP 1170099 A2 EP1170099 A2 EP 1170099A2 EP 01108679 A EP01108679 A EP 01108679A EP 01108679 A EP01108679 A EP 01108679A EP 1170099 A2 EP1170099 A2 EP 1170099A2
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- European Patent Office
- Prior art keywords
- cutting edge
- cutting
- shaped
- workpiece
- punch
- 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.)
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Classifications
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
- B26D7/10—Means for treating work or cutting member to facilitate cutting by heating
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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
- B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
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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
- B26F2001/4472—Cutting edge section features
Definitions
- the invention relates to a punching tool for producing openings in workpieces Made of thermoplastic material with a cutting edge running around the front having, can be brought into engagement with a cutting plate in a working stroke and thereby the workpiece arranged between its cutting edge and the insert Generation of a breakthrough in the cutting direction penetrating locally heatable Punch.
- Openings often have to be made in molded parts made of thermoplastic. When the openings are punched out, the formation of burrs or cracks is disadvantageous felt. Subsequent painting involves the sharp edges Paint accumulation and, as a result, flaking of the paint. This can be a Assume that the aesthetic appearance suffers. A Reworking the cut edges would be an additional step in series production Require labor.
- a 1 describes a cutting tool and a method for punching Workpieces made of thermoplastic, in particular of flat motor vehicle add-on parts known.
- a punch is in a column frame with an insert in a working stroke can be brought into engagement, wherein a wall opening in a workpiece is produced.
- thermoplastic workpiece Another solution for shaping a thermoplastic workpiece using a Punching device is known from DE 197 48 407 A1.
- a punching device on the foot of a punch knife a fillet profile with such a heating device that a predetermined punched edge profile is created by locally hot pressing the workpiece.
- the outer surface of the cylindrical punching knife runs in at the foot of the same a groove-shaped area, the shape of which with respect to the desired Cross-sectional shape of the workpiece is selected at this point.
- thermoplastic is removed by a heating device arranged in the throat area Material of the workpiece locally, i.e. H. heated in the area of the throat so that one for Sufficient softening occurs through shaping by hot pressing.
- the invention is based on the object To provide punching tool, the stamp for both the top and for the Through cut is suitable, with a smooth, burr-free at low manufacturing costs Transition between the cut surface and the adjacent surface is achieved.
- the object is achieved in that the stamp of the punching tool as a one-piece, heatable cutting punch with a cutting edge running around the front a V-shaped cutting edge geometry is formed.
- the angle of the V-shaped cutting edge encircling the end face includes one Range from 5 ° to 20 °.
- the height h of the V-shaped cutting edge in the top cut is in accordance with the thickness of the to be punched out material.
- the outer contour of the V-shaped cutting edge has a radial transition.
- the radius of the transition between the outer contour of the V-shaped cutting edge and the Shank diameter of the stamp is preferably smaller than the wall thickness of the to be punched out material.
- the punching tool essentially consists of a column frame, a hold-down device (7) for the workpiece (6), a cutting plate (5) and a cutting punch (1) with a Heating device (8).
- FIG. 1 shows a basic illustration of the cutting punch (1) according to the invention.
- This has a V-shaped cutting edge (2) on the end face.
- the outer contour (3) of the V-shaped Cutting edge (2) merges into a radius-shaped area (4).
- the radius of the radius Area (4) is preferably in the area smaller than the wall thickness of the workpiece (6).
- the heating device (8) is arranged in a radial region. Depending on the material of the Workpiece (6), the radius-shaped area is heated to 60 ° C to 130 ° C.
- the height (H) the V-shaped cutting edge (2) is preferably in the area of the top cut Wall thickness of the workpiece (6).
- FIG 2 the process of the top section is shown in principle.
- the cutting punch (1) is moved in an axial stroke in the direction of the cutting plate (5).
- the axial stroke is divided into a working stroke and a return stroke for each cutting process.
- the part of the workpiece (6) punched out during the working stroke is ejected during the return stroke by an ejector arranged in the cutting punch (1).
- the opening is punched out and the radius / smoothing is formed on the visible side of the workpiece (6) through the radius-shaped area (4) of the punch (1) in one operation. Due to the heating of the radius-shaped area (4) by means of the heating device (8), the cut edge of the workpiece (6) is plasticized under contact heating, which is then smoothed according to the contour of the radius-shaped area (4).
- the process is shown in principle when performing a through cut.
- the cutting plate (5) has a conical opening (9) that widens downward from the workpiece support surface.
- the cutting punch (1) is moved in the direction of the cutting plate (5) by an axial stroke.
- the material flows over the edge of the opening (9) in the cutting plate (5).
- the surface is already drawn inwards in a radius.
- the part to be punched out is sheared off by the interaction of the cutting edge (10) of the cutting plate (5) and the outer contour of the V-shaped cutting edge (2).
- the punched-out is ejected over the opening (9).
- the heated radius-shaped area (4) results in a smoothing in the punched area during the lower dead center support of the cutting punch (1).
- the height (H) of the V-shaped cutting edge (2) is greater than the wall thickness of the material to be punched out in the through cut.
- the cutting edge occurs when punching out in a first step after placing the Cutting stamp on the workpiece surface to a process similar to deep drawing.
- the material is already inwards to a certain extent thanks to the V-shaped cutting edge pulled so that a sharp-edged transition to the punching is already avoided. Due to the heated radius-shaped area (4) there is no actual reshaping, but just a smoothing of the surface.
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
Die Erfindung betrifft ein Stanzwerkzeug zur Herstellung von Durchbrüchen in Werkstücken aus thermoplastischem Material mit einem eine stirnseitig umlaufende Schneide aufweisenden, in einem Arbeitshub mit einer Schneidplatte in Eingriff bringbaren und dabei das zwischen seiner Schneide und der Schneidplatte angeordnete Werkstück unter Erzeugung eines Durchbruchs in Schneidrichtung durchdringenden örtlich beheizbaren Stanzstempels.The invention relates to a punching tool for producing openings in workpieces Made of thermoplastic material with a cutting edge running around the front having, can be brought into engagement with a cutting plate in a working stroke and thereby the workpiece arranged between its cutting edge and the insert Generation of a breakthrough in the cutting direction penetrating locally heatable Punch.
In Formteile aus thermoplastischem Kunststoff müssen oft Öffnungen eingebracht werden. Beim Ausstanzen der Öffnungen wird die entstehende Grat- oder Rissbildung als nachteilig empfunden. Bei einer anschließenden Lackierung kommt es an den scharfen Kanten zu Lackansammlungen und infolgedessen zu einem Abplatzen des Lacks. Dieses kann ein Ausmaß annehmen, dass das ästhetische Erscheinungsbild darunter leidet. Eine Nachbearbeitung der Schnittkanten würde in der Serienproduktion einen zusätzlichen Arbeitsaufwand erfordern.Openings often have to be made in molded parts made of thermoplastic. When the openings are punched out, the formation of burrs or cracks is disadvantageous felt. Subsequent painting involves the sharp edges Paint accumulation and, as a result, flaking of the paint. This can be a Assume that the aesthetic appearance suffers. A Reworking the cut edges would be an additional step in series production Require labor.
Aus der DE 197 30 859 A 1 ist ein Schneidwerkzeug und ein Verfahren zum Lochen von Werkstücken aus thermoplastischem Kunststoff, insbesondere von flächigen Kraftfahrzeug-Anbauteilen bekannt. Ein Lochstempel ist in einem Säulengestell mit einer Schneidplatte in einem Arbeitshub in Eingriff bringbar, wobei ein Wanddurchbruch in einem Werkstück erzeugt wird.DE 197 30 859 A 1 describes a cutting tool and a method for punching Workpieces made of thermoplastic, in particular of flat motor vehicle add-on parts known. A punch is in a column frame with an insert in a working stroke can be brought into engagement, wherein a wall opening in a workpiece is produced.
Um im selben Arbeitsgang eine glatte, abrissfreie Schnittkante herzustellen, weist der Lochstempel eine entgegen der Schneid- bzw. Arbeitshubrichtung in Abstand von seiner Schneide angeordnete und über diese quer zur Schneidrichtung hinausragende Warmformfläche auf, die mittels einer Heizvorrichtung erwärmbar und am Ende des Arbeitshubes gegen die ihr zugewandte Schnittkante des Wanddurchbruchs anpressbar ist. In order to produce a smooth, tear-free cutting edge in the same operation, the Punch one against the cutting or working stroke direction at a distance from it Edge arranged and protruding beyond it transversely to the cutting direction Thermoforming surface, which can be heated by means of a heating device and at the end of the Working strokes can be pressed against the cutting edge of the wall opening facing it.
Damit lässt sich die Schnittfläche des Wanddurchbruchs entsprechend der Ringkontur der Warmformfläche umformen und insbesondere die der Warmformfläche zugewandte Schnittkante abrunden, wobei bei dem so hergestellten Wanddurchbruch der optische Eindruck einer Urformgebung vermittelt wird. Schneid- und Warmformvorgang erfolgen in einem Hub.This allows the cut surface of the wall opening to match the ring contour of the Form the hot-forming surface and in particular that facing the hot-forming surface Round off the cut edge, with the optical opening in the wall opening produced in this way Impression of an original shape is conveyed. Cutting and thermoforming are done in a hub.
Eine weitere Lösung zur Formgebung eines thermoplastischen Werkstückes mittels einer Stanzvorrichtung ist aus der DE 197 48 407 A 1 bekannt. Zur Vermeidung einer scharfen Stanzkante an einem thermoplastischen Werkstück weist eine Stanzvorrichtung am Fuße eines Stanzmessers ein Kehlenprofil auf mit einer derart angelegten Heizvorrichtung, dass ein vorgegebenes Stanzkantenprofil durch örtliches Warmpressen des Werkstückes entsteht. Die Außenfläche des zylindrisch ausgebildeten Stanzmessers läuft am Fuße desselben in einen hohlkehlenförmigen Bereich aus, dessen Form im Hinblick auf die gewünschte Querschnittsform des Werkstückes an dieser Stelle gewählt ist.Another solution for shaping a thermoplastic workpiece using a Punching device is known from DE 197 48 407 A1. To avoid a sharp Punching edge on a thermoplastic workpiece has a punching device on the foot of a punch knife a fillet profile with such a heating device that a predetermined punched edge profile is created by locally hot pressing the workpiece. The outer surface of the cylindrical punching knife runs in at the foot of the same a groove-shaped area, the shape of which with respect to the desired Cross-sectional shape of the workpiece is selected at this point.
Durch eine im Kehlenbereich angeordnete Heizvorrichtung wird das thermoplastische Material des Werkstückes örtlich, d. h. im Bereich der Kehle erhitzt, so dass eine zur Formgebung durch Warmpressen ausreichende Erweichung eintritt.The thermoplastic is removed by a heating device arranged in the throat area Material of the workpiece locally, i.e. H. heated in the area of the throat so that one for Sufficient softening occurs through shaping by hot pressing.
Die Nachteile der vorbeschriebenen Lösungen liegen zum einen darin, dass bei geraden zylindrischen Stanzstempeln mit anschließendem Kehlprofil zum örtlichen Warmpressen beim Ausstanzen seitliche Aufwölbungen durch Materialverdrängung eintreten können, und zum anderen aufgrund der unterschiedlichen thermischen Ausdehnungen von unbeheizter Schneidplatte und beheiztem Stanzstempel ein relativ großer Schneidspalt gewählt werden muss, um ein Klemmen oder ein Zustören der Schneidkante zu verhindern. Aufgrund des relativ großen Schneidspaltes kann eine gleichmäßige saubere Stanzung nicht gewährleistet werden.The disadvantages of the above-described solutions are that they are straight cylindrical punches with subsequent fillet profile for local hot pressing lateral bulges can occur due to material displacement when punching out, and on the other hand due to the different thermal expansions from unheated Cutting plate and heated punch a relatively large cutting gap can be selected in order to prevent the cutting edge from jamming or jamming. Because of the a relatively large cutting gap cannot guarantee a uniform, clean punching become.
Ausgehend von dem Vorgenannten liegt der Erfindung die Aufgabe zugrunde, ein Stanzwerkzeug bereitzustellen, dessen Stempel sowohl für den Aufsatz- als auch für den Durchgangsschnitt geeignet ist, wobei bei geringem Fertigungsaufwand ein glatter, gratfreier Übergang zwischen Schnittfläche und angrenzender Oberfläche erreicht wird. Based on the above, the invention is based on the object To provide punching tool, the stamp for both the top and for the Through cut is suitable, with a smooth, burr-free at low manufacturing costs Transition between the cut surface and the adjacent surface is achieved.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass der Stempel des Stanzwerkzeuges als einteiliger, beheizbarer Schneidstempel mit einer stirnseitig umlaufenden Schneide mit einer V-förmigen Schneidengeometrie ausgebildet ist.According to the invention, the object is achieved in that the stamp of the punching tool as a one-piece, heatable cutting punch with a cutting edge running around the front a V-shaped cutting edge geometry is formed.
Der Winkel der stirnseitig umlaufenden, V-förmig ausgebildeten Schneide umfasst einen Bereich von 5° - 20°.The angle of the V-shaped cutting edge encircling the end face includes one Range from 5 ° to 20 °.
Die Höhe h der V-förmigen Schneide beim Aufsatzschnitt ist entsprechend der Stärke des auszustanzenden Materials ausgebildet.The height h of the V-shaped cutting edge in the top cut is in accordance with the thickness of the to be punched out material.
Die Außenkontur der V-förmigen Schneide weist einen radienförmigen Übergang auf. Der Radius des Übergangs zwischen der Außenkontur der V-förmigen Schneide und dem Schaftdurchmesser des Stempels ist vorzugsweise kleiner als die Wandstärke des auszustanzenden Materials ausgebildet.The outer contour of the V-shaped cutting edge has a radial transition. The radius of the transition between the outer contour of the V-shaped cutting edge and the Shank diameter of the stamp is preferably smaller than the wall thickness of the to be punched out material.
Durch die Ausbildung des Schneidstempels ist es in Verbindung mit einer Wärmebeaufschlagung im Bereich des radienförmigen Übergangs möglich, in einem Arbeitsgang einen Durchbruch im Werkstück herzustellen und eine Glättung der Stanzfläche durchzuführen.Due to the design of the cutting punch, it is combined with a heat application possible in the area of the radial transition, in one operation create a breakthrough in the workpiece and smooth the punching surface perform.
Anhand von Ausführungsbeispielen soll die Erfindung näher erläutert werden.The invention will be explained in more detail with the aid of exemplary embodiments.
Es zeigen:
- Figur 1 -
- Prinzipdarstellung des Schneidstempels
- Figur 2 -
- Darstellung eines Aufsatzschnittes
- Figur 3 -
- Darstellung eines Durchgangsschnittes
- Figure 1 -
- Principle representation of the cutting punch
- Figure 2 -
- Representation of an essay cut
- Figure 3 -
- Representation of a through cut
Das Stanzwerkzeug besteht im wesentlichen aus einem Säulengestell, einem Niederhalter (7) für das Werkstück (6), einer Schneidplatte (5) und einem Schneidstempel (1) mit einer Heizeinrichtung (8). The punching tool essentially consists of a column frame, a hold-down device (7) for the workpiece (6), a cutting plate (5) and a cutting punch (1) with a Heating device (8).
Die Figur 1 zeigt eine Prinzipdarstellung des erfindungsgemäßen Schneidstempels (1). Dieser weist stirnseitig eine V-förmige Schneide (2) auf. Die Außenkontur (3) der V-förmigen Schneide (2) geht in einen radienförmigen Bereich (4) über. Der Radius des radienförmigen Bereichs (4) liegt vorzugsweise im Bereich kleiner der Wandstärke des Werkstückes (6). Im radienförmigen Bereich ist die Heizeinrichtung (8) angeordnet. Je nach Material des Werkstückes (6) wird der radienförmige Bereich auf 60°C bis 130°C aufgeheizt. Die Höhe (H) der V-förmigen Schneide (2) liegt beim Aufsatzschnitt vorzugsweise im Bereich der Wandstärke des Werkstückes (6).FIG. 1 shows a basic illustration of the cutting punch (1) according to the invention. This has a V-shaped cutting edge (2) on the end face. The outer contour (3) of the V-shaped Cutting edge (2) merges into a radius-shaped area (4). The radius of the radius Area (4) is preferably in the area smaller than the wall thickness of the workpiece (6). in the The heating device (8) is arranged in a radial region. Depending on the material of the Workpiece (6), the radius-shaped area is heated to 60 ° C to 130 ° C. The height (H) the V-shaped cutting edge (2) is preferably in the area of the top cut Wall thickness of the workpiece (6).
In der Figur 2 ist prinzipiell der Vorgang beim Aufsatzschnitt dargestellt.
Nach dem Auflegen des Werkstückes (6) auf die Schneidplatte (5) erfolgt die Fixierung durch
den Niederhalter (7). Zum Ausstanzen wird der Schneidstempel (1) in einen Axialhub in
Richtung Schneidplatte (5) bewegt. Je Schneidvorgang ist der Axialhub in einen Arbeitshub
und einen Rückhub unterteilt. Das beim Arbeitshub ausgestanzte Teil des Werkstückes (6)
wird durch einen im Schneidstempel (1) angeordneten Auswerfer während des Rückhubes
ausgeworfen. Beim Arbeitshub erfolgt in einem Arbeitsgang das Ausstanzen des
Durchbruches sowie Anformung des Radius/Glättung an der Sichtseite des Werkstückes (6)
durch den radienförmigen Bereich (4) des Stanzstempels (1). Aufgrund der Beheizung des
radienförmigen Bereichs (4) mittels der Heizeinrichtung (8) erfolgt unter Kontakterwärmung
eine Plastifizierung der Schnittkante des Werkstückes (6), die dann entsprechend der Kontur
des radienförmigen Bereichs (4) geglättet wird.In Figure 2, the process of the top section is shown in principle.
After placing the workpiece (6) on the cutting plate (5), it is fixed by the hold-down device (7). For punching out, the cutting punch (1) is moved in an axial stroke in the direction of the cutting plate (5). The axial stroke is divided into a working stroke and a return stroke for each cutting process. The part of the workpiece (6) punched out during the working stroke is ejected during the return stroke by an ejector arranged in the cutting punch (1). During the working stroke, the opening is punched out and the radius / smoothing is formed on the visible side of the workpiece (6) through the radius-shaped area (4) of the punch (1) in one operation. Due to the heating of the radius-shaped area (4) by means of the heating device (8), the cut edge of the workpiece (6) is plasticized under contact heating, which is then smoothed according to the contour of the radius-shaped area (4).
In der Figur 3 ist prinzipiell der Vorgang bei Durchführung eines Durchgangsschnittes
dargestellt.
Die Schneidplatte (5) weist dazu einen von der Werkstückauflagefläche nach unten sich
erweiternden kegelförmigen Durchbruch (9) auf. Nach dem Auflegen des Werkstückes (6)
und Fixieren durch den Niederhalter (7) wird der Schneidstempel (1) durch einen Axialhub in
Richtung Schneidplatte (5) bewegt. Mit dem Aufsetzen des Schneidstempels (1) auf die
Werkstückoberfläche und dem weiteren Verfahren kommt in einem ersten Schritt zum
Fließen des Werkstoffes über die Kante des Durchbruches (9) in der Schneidplatte (5). Die
Oberfläche wird hier bereits radienförmig nach innen gezogen. In Figure 3, the process is shown in principle when performing a through cut.
For this purpose, the cutting plate (5) has a conical opening (9) that widens downward from the workpiece support surface. After placing the workpiece (6) and fixing it with the hold-down device (7), the cutting punch (1) is moved in the direction of the cutting plate (5) by an axial stroke. When the cutting punch (1) is placed on the workpiece surface and the further process, in a first step, the material flows over the edge of the opening (9) in the cutting plate (5). The surface is already drawn inwards in a radius.
Am Ende des Hubes erfolgt das Abscheren des auszustanzenden Teils durch das
Zusammenwirken der Schnittkante (10) der Schneidplatte (5) und der äußeren Kontur der V-förmigen
Schneide (2). Die Ausstanzung wird über dem Durchbruch (9) ausgeworfen. Durch
den beheizten radienförmigen Bereich (4) kommt es während der unteren Totpunktauflage
des Schneidstempels (1) zu einer Glättung im Bereich der Ausstanzung.
Die Höhe (H) der V-förmigen Schneide (2) ist beim Durchgangsschnitt größer als die Wandstärke
des auszustanzenden Materials ausgebildet.At the end of the stroke, the part to be punched out is sheared off by the interaction of the cutting edge (10) of the cutting plate (5) and the outer contour of the V-shaped cutting edge (2). The punched-out is ejected over the opening (9). The heated radius-shaped area (4) results in a smoothing in the punched area during the lower dead center support of the cutting punch (1).
The height (H) of the V-shaped cutting edge (2) is greater than the wall thickness of the material to be punched out in the through cut.
Durch die Ausbildung der stirnseitig am Schneidstempel (1) angeordneten V-förmigen Schneide kommt es beim Ausstanzen in einem ersten Schritt nach dem Aufsetzen des Schneidstempels auf die Werkstückoberfläche zu einem Vorgang ähnlich dem Tiefziehen. Das Material wird durch die V-förmige Schneide bereits in einem gewissen Maß nach innen gezogen, so dass ein scharfkantiger Übergang zur Ausstanzung bereits vermieden wird. Durch den beheizten radienförmigen Bereich (4) erfolgt keine eigentliche Umformung mehr, sondern nur noch eine Glättung der Oberfläche. Through the formation of the V-shaped ends arranged on the cutting punch (1) The cutting edge occurs when punching out in a first step after placing the Cutting stamp on the workpiece surface to a process similar to deep drawing. The material is already inwards to a certain extent thanks to the V-shaped cutting edge pulled so that a sharp-edged transition to the punching is already avoided. Due to the heated radius-shaped area (4) there is no actual reshaping, but just a smoothing of the surface.
- 1 -1 -
- Stempelstamp
- 2 -2 -
- V-förmige SchneideV-shaped cutting edge
- 3 -3 -
- Außenkonturouter contour
- 4 -4 -
- Radienförmiger BereichRadial area
- 5 -5 -
- Schneidplattecutting board
- 6 -6 -
- Werkstückworkpiece
- 7 -7 -
- Niederhalterdown device
- 8 -8th -
- Heizeinrichtungheater
- 9 -9 -
- Durchbruchbreakthrough
- 10 -10 -
- Schnittkantecutting edge
- 11 -11 -
- Höheheight
Claims (4)
dadurch gekennzeichnet, dass der Stempel (1) des Stanzwerkzeuges als einteiliger, beheizbarer Schneidstempel mit einer stirnseitig umlaufenden Schneide (2) mit einer V-förmigen Schneidengeometrie ausgebildet ist.Punching tool for producing openings in workpieces made of thermoplastic material with a locally heatable stamp which has a cutting edge encircling the end face and can be brought into engagement with a cutting plate in a working stroke and thereby the workpiece arranged between its cutting edge and the cutting plate, producing a wall opening penetrating in the cutting direction,
characterized in that the punch (1) of the punching tool is designed as a one-piece, heatable cutting punch with a cutting edge (2) running around the end face and having a V-shaped cutting edge geometry.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10032458 | 2000-07-04 | ||
| DE2000132458 DE10032458A1 (en) | 2000-07-04 | 2000-07-04 | Punching tool for producing openings in workpieces made of thermoplastic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1170099A2 true EP1170099A2 (en) | 2002-01-09 |
| EP1170099A3 EP1170099A3 (en) | 2003-10-15 |
Family
ID=7647740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01108679A Withdrawn EP1170099A3 (en) | 2000-07-04 | 2001-04-06 | Cutting die for producing openings in a workpiece made of thermoplastic material |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1170099A3 (en) |
| DE (1) | DE10032458A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10239452A1 (en) * | 2002-08-28 | 2004-03-18 | Dynamit Nobel Kunststoff Gmbh | Punching holes in hard plastics, e.g. for car body parts, includes initial coining operation to produce a radius along the edge |
| EP1649988A1 (en) * | 2004-10-22 | 2006-04-26 | G. WACHSMUTH & CO. WERKZEUGBAU GmbH | Tool for cutting film, especially multilayer film |
| EP1762348A1 (en) * | 2005-09-12 | 2007-03-14 | Ricoh Company, Ltd. | Perforating unit having reduced heat deformation effect and image forming system using the same |
| DE202008015770U1 (en) | 2008-11-27 | 2009-02-26 | Karl Reichardt, Stanzmesserfabrik Gmbh | Punching device and heating plate for it |
| DE102008059934A1 (en) * | 2008-12-02 | 2010-06-10 | Reiplinger Gmbh & Co. Kg | Punching die for use in working tool, and for punching hole in piece of metal, has cylindrical geometry, and is tapered from two sides of cylinder to lower cutting edge |
| WO2011128072A1 (en) * | 2010-04-12 | 2011-10-20 | Faurecia Innenraum Systeme Gmbh | Method and tool device for shaping a foam layer of a moulding |
| DE102010061991A1 (en) * | 2010-11-25 | 2012-05-31 | Bayerische Motoren Werke Aktiengesellschaft | Method for stamping fiber mat made of e.g. knitted fabric during manufacturing fiber reinforced plastic part, involves pressing stamping edge obtuse against planar steel plate after separation of fiber mat |
| WO2014111243A2 (en) * | 2013-01-16 | 2014-07-24 | Rehau Ag + Co | Method for producing a polymer motor vehicle component |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE383930T1 (en) | 2004-02-27 | 2008-02-15 | Nestec Sa | METHOD AND DEVICE FOR PUNCHING A FILTER MATERIAL |
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| US4579022A (en) * | 1979-12-20 | 1986-04-01 | Fujikura Cable Works, Ltd. | Making process of a die for stamping out patterns |
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| DE19730859A1 (en) * | 1997-07-17 | 1999-01-21 | Magna Pebra Gmbh | Cutting tool and method for punching thermoplastic workpieces |
| DE19748407A1 (en) * | 1997-11-03 | 1999-05-06 | Volkswagen Ag | Stamping and shaping of thermoplastic workpiece, e.g. car bumper cover |
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| DE29720203U1 (en) * | 1997-11-14 | 1998-01-22 | Albert Braach GmbH + Co KG Modell- und Maschinenbau, 57334 Bad Laasphe | Heated cutting tool |
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| FR1482554A (en) * | 1965-06-09 | 1967-05-26 | Process for obtaining letters, characters and marks | |
| US4579022A (en) * | 1979-12-20 | 1986-04-01 | Fujikura Cable Works, Ltd. | Making process of a die for stamping out patterns |
| EP0318659A1 (en) * | 1987-11-28 | 1989-06-07 | Helmut Pelzer | Cutting tool for cutting pieces of long-fibrous materials |
| US5622587A (en) * | 1991-12-19 | 1997-04-22 | Barthelman; Kenneth L. | Method for producing a three-dimensional laminated decal composite |
| WO1995026870A1 (en) * | 1994-04-05 | 1995-10-12 | Minnesota Mining And Manufacturing Company | Apparatus and method for cutting and sealing porous edged sheeting |
| DE19640562A1 (en) * | 1996-10-01 | 1998-04-09 | Bosch Gmbh Robert | Stamping machine separating filled, thermo-formed containers with sealed detachable covers |
| DE19730859A1 (en) * | 1997-07-17 | 1999-01-21 | Magna Pebra Gmbh | Cutting tool and method for punching thermoplastic workpieces |
| DE19748407A1 (en) * | 1997-11-03 | 1999-05-06 | Volkswagen Ag | Stamping and shaping of thermoplastic workpiece, e.g. car bumper cover |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10239452A1 (en) * | 2002-08-28 | 2004-03-18 | Dynamit Nobel Kunststoff Gmbh | Punching holes in hard plastics, e.g. for car body parts, includes initial coining operation to produce a radius along the edge |
| DE10239452B4 (en) * | 2002-08-28 | 2008-02-28 | Plastal Gmbh | Embossing of hard plastics |
| EP1649988A1 (en) * | 2004-10-22 | 2006-04-26 | G. WACHSMUTH & CO. WERKZEUGBAU GmbH | Tool for cutting film, especially multilayer film |
| EP1762348A1 (en) * | 2005-09-12 | 2007-03-14 | Ricoh Company, Ltd. | Perforating unit having reduced heat deformation effect and image forming system using the same |
| US7762170B2 (en) | 2005-09-12 | 2010-07-27 | Ricoh, Co. Ltd. | Heat-effect reduceable finishing unit and image forming system using the same |
| DE202008015770U1 (en) | 2008-11-27 | 2009-02-26 | Karl Reichardt, Stanzmesserfabrik Gmbh | Punching device and heating plate for it |
| DE102008059934A1 (en) * | 2008-12-02 | 2010-06-10 | Reiplinger Gmbh & Co. Kg | Punching die for use in working tool, and for punching hole in piece of metal, has cylindrical geometry, and is tapered from two sides of cylinder to lower cutting edge |
| DE102008059934B4 (en) * | 2008-12-02 | 2011-06-16 | Reiplinger Gmbh & Co. Kg | Punch and use of the punch |
| WO2011128072A1 (en) * | 2010-04-12 | 2011-10-20 | Faurecia Innenraum Systeme Gmbh | Method and tool device for shaping a foam layer of a moulding |
| DE102010061991A1 (en) * | 2010-11-25 | 2012-05-31 | Bayerische Motoren Werke Aktiengesellschaft | Method for stamping fiber mat made of e.g. knitted fabric during manufacturing fiber reinforced plastic part, involves pressing stamping edge obtuse against planar steel plate after separation of fiber mat |
| DE102010061991B4 (en) * | 2010-11-25 | 2016-06-09 | Bayerische Motoren Werke Aktiengesellschaft | Method for punching a fiber mat consisting of fiber material |
| WO2014111243A2 (en) * | 2013-01-16 | 2014-07-24 | Rehau Ag + Co | Method for producing a polymer motor vehicle component |
| WO2014111243A3 (en) * | 2013-01-16 | 2014-09-12 | Rehau Ag + Co | Method for rounding edges of polymer motor vehicle components |
| CN104936765A (en) * | 2013-01-16 | 2015-09-23 | 雷奥两合股份公司 | Method for producing polymer motor vehicle component |
| CN104936765B (en) * | 2013-01-16 | 2017-09-22 | 雷奥两合股份公司 | The manufacture method of the automotive component of polymer |
| US10226901B2 (en) | 2013-01-16 | 2019-03-12 | Rehau Ag + Co | Method for rounding edges of polymer motor vehicle components |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10032458A1 (en) | 2002-07-25 |
| EP1170099A3 (en) | 2003-10-15 |
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