EP1542817A1 - Schnittwerkzeug - Google Patents
SchnittwerkzeugInfo
- Publication number
- EP1542817A1 EP1542817A1 EP03766393A EP03766393A EP1542817A1 EP 1542817 A1 EP1542817 A1 EP 1542817A1 EP 03766393 A EP03766393 A EP 03766393A EP 03766393 A EP03766393 A EP 03766393A EP 1542817 A1 EP1542817 A1 EP 1542817A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting
- knife
- tool according
- cutting knife
- pressure pad
- 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.)
- Granted
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 93
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 238000004080 punching Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000009975 flexible effect Effects 0.000 claims description 4
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 3
- 239000013536 elastomeric material Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 description 6
- 239000011324 bead Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/20—Making tools by operations not covered by a single other subclass
- B21D37/205—Making cutting tools
Definitions
- the invention relates to a cutting tool, in particular for sheet metal blanks, according to the preamble of claim 1.
- Cutting tools of this type as are known, for example, from DE 101 40 496 A1, US Pat. No. 3,137,188 A or US Pat. No. 4,607,553 A for punching flat sheet material, mostly plastic or cardboard, contain a hollow cylindrical one-sided or V-shaped sharpened cutting knife, which, without the need for a counter tool, only requires a relatively hard punched material support surface, whereby according to US Pat.
- the object of the invention is to design a cutting tool of the type mentioned at the outset such that the punching useful part is given a high-quality edge which is largely free of burrs and bulges, in particular in the case of sheet metal blanks, during the punching stroke of the cutting knife.
- This object is achieved by a cutting tool with the features specified in claim 1.
- the material to be punched is displaced on one side in the direction of the punching waste, thereby effectively preventing a bead or burr-forming material structure at the edge of the useful part.
- the result is an extremely precisely cut punched part that is largely kept free from disruptive material protrusions.
- the cutting knife has a hollow cross section and the punched useful part lies on the inside of the cutting knife edge
- the cutting knife is radially widened in the cut edge region by the pressure cushion arranged in the cross-sectional interior of the cutting knife.
- the pressure pad in its relaxed state, with its end face on the part to be cut is preferably arranged essentially flush with the cutting plane of the cutting blade.
- the chamfer preferably lies on the side facing away from the pressure pad, the cutting knife expediently having an additional chamfer on the side facing the pressure pad in the direction of the cutting edge in view of an improved cutting quality for fibrous punched material.
- the cutting knife can be provided with at least one parting line which extends to the cutting edge.
- the cutting knife is made of flexible strip steel, namely of a very strong chromium-nickel steel with high elasticity, which has excellent wear resistance and penetrates even stacked sheet metal boards easily and with high cutting quality.
- the flexible properties of such a strip steel are expediently used to produce different cutting geometries with the cutting tool in a structurally simple manner in connection with a variable fastening of the cutting knife to the knife holder.
- FIG. 1 shows a cutting tool designed according to the invention in a partially sectioned illustration
- FIG. 2A, 2B an enlarged partial illustration of the cutting tool according to FIG. 1 in different cutting phases
- Fig. 3 is the bottom view of a knife holder with variably adjustable fasteners for a band steel cutting knife.
- the cutting tool shown in the figure serves to cut out a disk-shaped punching useful part 1 from a sheet metal plate 2 and for this purpose contains a band steel cutting knife 4 fastened to a knife holder 3 with a cutting edge 5 and a pressure pad 6 filling the hollow cross section enclosed by the cutting knife 4, which consists of an elastomeric material, such as rubber or plastic, and in a relaxed state (FIG. 1) is arranged with its end face 7 on the utility part side essentially flush with the cutting knife edge 5.
- a band steel cutting knife 4 fastened to a knife holder 3 with a cutting edge 5 and a pressure pad 6 filling the hollow cross section enclosed by the cutting knife 4, which consists of an elastomeric material, such as rubber or plastic, and in a relaxed state (FIG. 1) is arranged with its end face 7 on the utility part side essentially flush with the cutting knife edge 5.
- the pressure pad 6 is pressed approximately simultaneously with the penetration of the cutting knife edge 5 into the on a fixed support 8, e.g. made of steel, positioned sheet metal board 2 pressed against the punched part 1 (Fig. 2A).
- the pressure pad 6 thus acts as a hold-down device for the punched useful part 1.
- the cutting knife 4 is pressurized in the radial direction to such an extent by the pressure pad material that is increasingly displaced during the cutting process that it expands more and more elastically in the cutting edge area, that is to say the cutting edge 5 is continuously re-adjusted in the course of the cutting process is deflected outside.
- FIG. 2 on the side facing the punching waste 9, in the direction of the cutting edge 5, bevelled in a cutting shape and / or especially when trimming fibrous punched material on the side facing the punching useful part 1, it can be provided with a slight chamfer (not shown) , Fig. 3 shows the possibility of producing different cutting geometries in a simple manner with the flexible strip steel cutting knife 4.
- the knife holder 3 grid pattern disposed dovetail grooves 11 or receiving holes on the underside (not shown) for variably adjustable fastening elements 12, which are provided with receiving slots 13 into which used the steel strip and is thereby brought into the ge ⁇ wished sectional geometry.
- the cutting knife 4 has a parting line 14 which extends continuously to the cutting edge 5 and which facilitates the elastic deflection movement of the cutting knife 4 on the waste side under the effect of the displaced pressure pad material.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002135185 DE10235185A1 (de) | 2002-08-01 | 2002-08-01 | Schnittwerkzeug |
| DE10235185 | 2002-08-01 | ||
| PCT/EP2003/008564 WO2004012880A1 (de) | 2002-08-01 | 2003-08-01 | Schnittwerkzeug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1542817A1 true EP1542817A1 (de) | 2005-06-22 |
| EP1542817B1 EP1542817B1 (de) | 2008-04-02 |
Family
ID=30469320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03766393A Expired - Lifetime EP1542817B1 (de) | 2002-08-01 | 2003-08-01 | Schnittwerkzeug |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1542817B1 (de) |
| DE (2) | DE10235185A1 (de) |
| WO (1) | WO2004012880A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514611A (zh) * | 2018-11-19 | 2019-03-26 | 镇江市惠灵顿膜业有限公司 | 一种反渗透膜的自动化裁剪机 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007031867A (ja) * | 2005-07-25 | 2007-02-08 | Ibiden Co Ltd | 排ガス処理体の保持シール材用打抜板及びそれを用いた保持シール材の製造方法 |
| CN108789644A (zh) * | 2018-08-16 | 2018-11-13 | 深圳市山本光电股份有限公司 | 一种用于多层片材的冲切结构 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH198053A (de) * | 1955-09-14 | 1938-05-31 | Chem Fab Vormals Sandoz | Verfahren zur Darstellung eines Polyazofarbstoffes. |
| DE1782213U (de) | 1958-08-13 | 1959-02-05 | Josef Chrobok G M B H | Schnittwerkzeug. |
| US3137188A (en) * | 1961-10-23 | 1964-06-16 | Frank S Domka | Self-cleaning cutting die with stripper elements separable from cutting die |
| DE1782213A1 (de) * | 1967-08-03 | 1971-07-22 | Strunck & Co Maschf H | Vorrichtung zum Verschliessen von Hohlkoerpern,vorzugsweise Flaschen aus thermoplastischem Kunststoff,durch Verschweissen mittels Ultraschall |
| CH493313A (de) * | 1968-02-03 | 1970-07-15 | Roeder & Spengler Ohg | Stanzform |
| US3847036A (en) * | 1973-10-10 | 1974-11-12 | Centenary Central | Method of producing cutting plates for die cutting operations |
| US4607553A (en) * | 1983-05-20 | 1986-08-26 | Hanger Hole Punches, Inc. | Self-clearing punch with removable blade |
| ES2018043B3 (es) * | 1986-04-18 | 1991-03-16 | Gerhard Busch | Procedimiento y dispositivo para estampado de corte de una pila de rendimiento interdirigida en otra de material de cintas. |
| DE3630287C1 (de) * | 1986-09-05 | 1993-06-24 | Marbach Gmbh Karl | Bandstahlstanzwerkzeug mit elastischem Profilstreifen |
| US4862780A (en) * | 1988-02-29 | 1989-09-05 | United Technologies Corporation | Apparatus for cutting sheets of material |
| JPH0592398A (ja) * | 1991-09-30 | 1993-04-16 | Shin Etsu Polymer Co Ltd | 床タイル用切断装置 |
| CH696194A5 (de) * | 2000-09-13 | 2007-02-15 | Trueb Ag | Verfahren zur Herstellung von Karten aus Kunststoff, Identitätskarte oder Kreditkarte hergestellt nach dem Verfahren und Kartenstanzmaschine zur Durchführung des Verfahrens |
-
2002
- 2002-08-01 DE DE2002135185 patent/DE10235185A1/de not_active Withdrawn
-
2003
- 2003-08-01 EP EP03766393A patent/EP1542817B1/de not_active Expired - Lifetime
- 2003-08-01 WO PCT/EP2003/008564 patent/WO2004012880A1/de not_active Ceased
- 2003-08-01 DE DE50309548T patent/DE50309548D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004012880A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514611A (zh) * | 2018-11-19 | 2019-03-26 | 镇江市惠灵顿膜业有限公司 | 一种反渗透膜的自动化裁剪机 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1542817B1 (de) | 2008-04-02 |
| DE50309548D1 (de) | 2008-05-15 |
| DE10235185A1 (de) | 2004-02-19 |
| WO2004012880A1 (de) | 2004-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0155619B1 (de) | Durchsetzfügeverfahren | |
| EP0720695B1 (de) | Selbststanzende befestigungsvorrichtung | |
| EP1229254B1 (de) | Stanznietverbindung und Halbhohlstanzniet | |
| DE102014104084A1 (de) | System zur elastischen mittelnden Ausrichtung, Verfahren zum Herstellen desselben und Schneidstempel dafür | |
| DE3326580A1 (de) | Verfahren und anordnung zur herstellung einer duesenplatte fuer tintenstrahldrucker | |
| EP1013945B1 (de) | Stanz-Prägeniet | |
| DE112006000245T5 (de) | Stanzvorrichtung, Stanzverfahren und Stanzprodukt | |
| DE3220461A1 (de) | Vorrichtung zum einbringen von loechern in dicke papierstapel | |
| DE19929377B4 (de) | Verfahren und Vorrichtung zum Verbinden aufeinanderliegender Platten | |
| DE1918780A1 (de) | Scherverfahren und -Vorrichtung zum Abtrennen von Werkstuecken aus einem Ausgangsmaterial | |
| EP1285405B1 (de) | Vorrichtung zum stanzen von kunststoffen | |
| DD231748A5 (de) | Stanzwerkzeug | |
| CH696194A5 (de) | Verfahren zur Herstellung von Karten aus Kunststoff, Identitätskarte oder Kreditkarte hergestellt nach dem Verfahren und Kartenstanzmaschine zur Durchführung des Verfahrens | |
| DE4100324C1 (de) | ||
| EP1542817A1 (de) | Schnittwerkzeug | |
| DE102019211066B3 (de) | Verfahren zum Schneiden einer nutförmigen Ausnehmung in ein Werkstück | |
| DE29707669U1 (de) | Stanzniet | |
| DE102015204415A1 (de) | Schlagschneidwerkzeug | |
| DE10305159B4 (de) | Stanzverfahren | |
| DE4035210A1 (de) | Verfahren zum fuegen von zwei oder mehreren flaechig aufeinander liegenden duennwandigen werkstuecken sowie vorrichtung zur durchfuehrung des verfahrens und nach dem verfahren hergestelltes werkstueckgefuege | |
| DE102010019839A1 (de) | Niederhalteeinrichtung für eine Stanzform und Verfahren zum Ausstanzen einer Öffnung oder Abtrennung mehrerer Lagen eines Kartons, Wellpappe oder dgl. | |
| WO2001000348A1 (de) | Verfahren, vorrichtung und werkzeugeinheit zum durchsetzfügen | |
| DE102006042116A1 (de) | Zweistufige Stempelanordnung für eine Hydroforming-Pressform | |
| DE102017129367B4 (de) | Trägerelement zur Aufnahme von Stanzlinien, das Trägerelement umfassende Stanzform und Verfahren zur Herstellung der Stanzform | |
| DE10345287B4 (de) | Werkzeug zum faserfreien Schneiden von Verkleidungen, Belägen oder ähnlichem |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20041215 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB IT |
|
| 17Q | First examination report despatched |
Effective date: 20070112 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20080415 |
|
| REF | Corresponds to: |
Ref document number: 50309548 Country of ref document: DE Date of ref document: 20080515 Kind code of ref document: P |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20090106 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 13 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20150801 Year of fee payment: 13 Ref country code: GB Payment date: 20150827 Year of fee payment: 13 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20150827 Year of fee payment: 13 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20150825 Year of fee payment: 13 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50309548 Country of ref document: DE |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20160801 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20170428 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170301 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160801 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160831 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160801 |