EP0759822B1 - Verfahren und vorrichtung zum rundbiegen von buchsen - Google Patents
Verfahren und vorrichtung zum rundbiegen von buchsen Download PDFInfo
- Publication number
- EP0759822B1 EP0759822B1 EP96908069A EP96908069A EP0759822B1 EP 0759822 B1 EP0759822 B1 EP 0759822B1 EP 96908069 A EP96908069 A EP 96908069A EP 96908069 A EP96908069 A EP 96908069A EP 0759822 B1 EP0759822 B1 EP 0759822B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaping
- core
- bush
- die
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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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
- B21D53/00—Making other particular articles
- B21D53/10—Making other particular articles parts of bearings; sleeves; valve seats or the like
-
- 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
- B21D51/00—Making hollow objects
- B21D51/02—Making hollow objects characterised by the structure of the objects
- B21D51/10—Making hollow objects characterised by the structure of the objects conically or cylindrically shaped objects
Definitions
- the invention relates to a method for bending bushings, in which one PCB in a gap between a core and a first die is inserted, which has a first molding chamber, the inner contour of Outer contour of the socket is at least approximately complementary and over extends at least half the socket circumference that by relative retraction of the core in the first molding chamber, the board in a preforming approximately U-shaped is bent that by relative retraction of the in the first mold chamber immersed core in a second mold chamber of a second die two legs of the U-shaped bent board in a final shape into one Bush deformed and that the edges of both molding chambers of the two Form stamps open in parallel end face planes of the form stamp and these Face planes face each other in the closed position of both mold chambers touch at least approximately, according to the preamble of claim 1.
- the invention further relates to a bending device according to the preamble of claim 8.
- the object of the invention is to provide a method and an apparatus for the same To create implementation with or with the boards more precisely than before can be bent round and this bending takes place more gently, so too sensitive materials can be processed.
- Round bending refers to bending in most applications rotationally symmetrical objects, such as cylindrical or conical bushings, but is not limited to this.
- the bent parts can also be oval, elliptical, have teardrop-shaped and similar cross sections.
- a further development of the invention is that the core also in the second Mold chamber is retracted deeper than it corresponds to the socket radius, so that the socket axis after final shaping of the socket at a distance from the Face plane of the second die is located within the molding chamber.
- the socket Since the center of the socket preferably both dies from their end planes are run over, the socket is in the 90 ° range and in the 270 ° range much better rounded than with the known bending process, in which the Move the punch exactly to the middle of the socket.
- To this Procedures must be carried out at least the core, but preferably also the first die in cross-section between preforming and final shaping be changed.
- the device according to the invention offers a solution for this. which are discussed below.
- Another important embodiment of the invention is that between Preforming and final shaping are carried out by an auxiliary shaping, through which only the Ends of the U-legs of the board by relatively moving the core into the second Mold chamber are curved according to their curvature, without the between these ends and the arched base of the U-shaped Bend the U-leg parts lying on the blank.
- the blank is then formed into an elongated round profile transforms, which in particular the precise rounding of the socket ends is favored.
- a further embodiment of the invention is that The bushing is machined on two working levels, with preforming, auxiliary forms and final forms are assigned to the first working level and that the bush is pushed axially into the second working plane after the final shaping and is calibrated there.
- An important procedural feature of the invention is that Start the preforming of the core by axially retracting an auxiliary core receives a larger overall cross-section, so that the center of the bush is passed over at least one of the form stamps is made possible.
- This auxiliary core will now very advantageously used according to the invention, the socket according to her Final shaping in the second working level towards an expansion sleeve of the calibration station push.
- the invention further relates to a bending device for performing the Bending process and this device is characterized in that the core and the first mold chamber a larger one during the preforming process Have cross-section than during the final shaping process and are extended in the direction of the U-legs of the molding.
- This characteristic can be realized by exchanging the cores.
- a more advantageous alternative is the use of an auxiliary core that temporarily removes for the final shaping becomes.
- This auxiliary core preferably sits on the core with a concave surface on and has a convex working surface that leads to the inner surface of the mold chamber is complementary. So this auxiliary core has a crescent-shaped cross section, at where the work surface and the inner surface lie on circular cylinders of the same size.
- the first die preferably supports one in the direction of the bushing axis sliding slide that forms part of the first mold chamber and on This slide has the end face of the mold chamber, which is the parting plane the die during preforming and intermediate or auxiliary molding Are defined.
- This division level is then at a distance from the center of the socket on the Page of the first form stamp.
- the Auxiliary core with the slide to a jointly movable unit connect so that after pulling this unit out of the first working level the core and the first molding chamber for the final shaping of the bushing new Received cross-sectional shapes, so that the unchanged second stamp die Can drive over the middle of the socket for the final shaping of the socket.
- the inventive method allows the Connection of the boards to the carrier strip via two webs, which the End areas of the board are assigned.
- the board can therefore be more precisely in the Bending device to be positioned. Since these webs after separation from Leave carrier strips on the front of the bushing, the bushings produced according to the invention differ from the prior art Technology in that these cut-off marks are located in the socket gap adjacent quarters are located.
- the two dies of the device according to the invention have a width at least equal to twice the width of the bush to be bent and point axially in addition to their mold chambers each have a calibration chamber, both Calibration chambers are mirror images of the same design, in their curvature with that of the associated mold chambers match, but only each extend over a circumferential angle of 180 °.
- the two calibration chambers form a circumferentially closed calibration cavity according to the Outer surface of the socket.
- This calibration cavity Spreading device which preferably consists of an expansion sleeve by a internal cone widened by axially shifting an operating rod or can be narrowed.
- the auxiliary core 18 and the slider 20 form a structural unit which by an operating tool, not shown, in the direction of arrow A (FIG. 10) is pushed back and forth.
- the first die 12 has a molding chamber 22 on with a partially cylindrical bottom in the form of a cylinder section.
- the area of the slide 20 is the partially cylindrical inner surface of the Molding chamber 22 continuously in a semi-cylindrical surface and opens with parallel inner surface sections on the end face plane 23 of the first Form stamp 12.
- the second form stamp 14 consists of two stamp halves 14a and 14b which together form a second molding chamber 24. This is approximately a mirror image formed to the mold chamber 22 and apart from a step between the two stamp parts 14a and 14b a semi-cylindrical contour, to which Connect downward facing parallel inner surface sections.
- the stamp part 14b is vertically displaceably mounted on the stamp part 14a and is by means of a Spring 15, which is illustrated here only schematically against a stop of the Stamp part 14a biased such that in the mold chamber 24 in the Middle level a level 17 arises.
- the two form stamps 12, 14 have moved apart.
- the core 16 is stationary.
- a board 26 is inserted.
- the die 12 moves then upwards in the direction of the arrow according to FIG. 1 and bends the board 26 in a U shape as shown in FIG. 2 is shown.
- the core center, that of the socket center corresponds, is below the end face 23 of the first die 12.
- the Core 16 has thus entered deeper into the mold chamber 22 than it Bushing radius corresponds.
- the 90 ° and 270 ° positions of the socket to be formed thus lie in the molding chamber 22, so that the U-legs formed on the board 26 do not spring outwards, but fit snugly against the auxiliary core 18.
- the preforming process of the board 26 is thus ended.
- the second die 14 moves according to FIG. 3 down.
- the ends 26 'of the U-legs of the blank are touched with the Mold chamber wall 24 bent inwards and lie down when the Form stamp 14 on the auxiliary stamp 18 on this.
- 14 remains the straightness of U-leg of the blank 26 received. Due to level 17 in the The forming chamber 24 is used to bend the two leg ends 26 'with one small time lag.
- the bending of the two leg ends 26 'between the second die 14 and the auxiliary core 18 provides one intermediate auxiliary shaping, according to which these leg ends 26 'exactly are curved in a circular cylinder and thus already have their final shape.
- the socket ends are usually interlocked.
- the Bushing edges mutually engaging projections and Cutouts. Since the punch half 14b first against the one sleeve edge presses the core 16, the positive closing of the socket 27 during the last phase of the downward movement of the stamp part 14a. Both Stamps 12 and 14 then move apart (FIG. 5), so that the finished bushing 27 can be stripped from the core 16.
- Figures 7 to 12 illustrate an additional calibration process of the Socket 27, in the same device 10 in a second working level takes place.
- tool parts are located on the right on both shaping dies 12, 14 30, 32 attached, each having calibration chambers 34, 36, the same Curvatures such as the mold chambers 22, 24 have, however, only over each other extend a circumferential angle of 180 °.
- the Stamp 12 When closed the Stamp 12, 14 thus lies on the parting plane of calibration chambers 34, 36 Core center.
- the hollow core 16 is penetrated by an actuating rod 38 which in the second working level carries a cone 40, which is supported by an expansion sleeve 42 is surrounded.
- the bushing 27 will now be after final shaping the unit consisting of auxiliary core 18 and slide 20 back into the first Work plane inserted, whereby the auxiliary core 18, the socket 27 on the Core 16 pushes into the second working level over the expansion sleeve 42.
- the one there previous working cycle calibrated socket 27 is simultaneously from the device 10 ejected (FIG. 12).
- the device 10 is then in the first Working level prepared for receiving a new board 26.
- the Preforming, intermediate and final shaping workflows Bushing 27 are repeated and in the position shown in FIGS. 4 and 10 two tools 30, 32 closed and form a cylindrical Calibration cavity that surrounds the bushing 27. In this position the Operating rod 38 is pulled in the direction of arrow A (FIG. 10), whereby the Expanding sleeve 42 is expanded by the action of cone 40 and bushing 27 calibrated.
- a board 26 is therefore without any Handling devices in a first working level with high precision closed and calibrated in the second working level.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Forging (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Closures For Containers (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
- FIG. 1 - FIG. 6
- Die Biegevorrichtung mit der zu biegenden Platine in nacheinander erfolgenden Arbeitsabläufen, und
- FIG. 7 - FIG. 12
- Querschnitte durch die Biegevorrichtung, in den, den jeweiligen Ansichten zugeordneten Arbeitsabläufen.
Claims (14)
- Verfahren zum Rundbiegen von Buchsen, bei dem eine Platine (26) in einen Spalt zwischen einem, zur Innenkontur der Buchse (27) komplementären Kern (16) und einem ersten Formstempel (12) eingelegt wird, der eine erste mehrteilige Formkammer (22) aufweist, deren einer Teil eine Innenkontur hat, die zur Außenkontur der Buchse (27) komplementär ist und deren anderer Teil die Höhe der Formkammer vergrößert, sodaß sich diese über mehr als den halben Buchsenumfang erstreckt, daß durch relatives Einfahren des Kerns (16) in die erste Formkammer (22) die Platine (26) zu einem etwa U-förmigen Formling gebogen wird, daß durch relatives Einfahren des in der ersten Formkammer (22) eingetauchten Kerns (16) in eine ebenfalls zur Buchsenkontur komplementäre zweite Formkammer (24) eines zweiten Formstempels (14) die beiden Schenke des U-förmigen Formlings in einer Endformung zu einer Buchse (27) verformt werden, wobei der Kern (16, 18) in die erste Formkammer (22) tiefer eingefahren wird, als es dem Buchsenradius entspricht, und nach der Vorformung und vor der Endformung eine Hilfsformung erfolgt, bei welcher der Abstand der U-Schenke des Formlings verringert wird, dadurch gekennzeichnet, daß während der Hilfsformung der Kern (16,18) einen größeren Querschnitt aufweist als bei der Endformung und in Richtung der U-Schenke des Formlings verlängert ist und daß durch relatives Einfahren der Schenkel des Formlings zusammen mit dem vergrößerten Kern (16,18) in die zweite Formkammer (24) die Schenkelenden (26') entsprechend der Formkammerkontur jeweils nach innen gegen den vergrößerten Kern (16,18) gebogen werden, ohne die an den Schenkelenden (26') angrenzenden Schenkelbereiche mitzubiegen.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Kern (16, 18) während der Endformung der Buchse (27) in die zweite Formkammer (24) tiefer eingefahren wird, als es dem Buchsenradius entspricht, sodaß die Buchsenachse nach Endformung der Buchse (27) im Abstand von der Stirnflächenebene (19) des zweiten Formstempels (14) innerhalb dessen Formkammer (24) liegt.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Vergrößerung des buchsenkomplementären Kerns (16) durch axiales Einfahren eines Hilfskerns (18) erfolgt.
- Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß der Beginn der Biegungen der beiden Enden (26') des Formlings mit geringer Verzögerung erfolgt.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Bearbeitung der Buchse (27) in zwei parallelen Arbeitsebenen erfolgt, daß in der ersten Arbeitsebene mindestens die Vorformung und die Endformung der Buchse (27) stattfinden, die dann axial in die zweite Arbeitsebene geschoben und dort kalibriert wird.
- Verfahren nach Ansprüchen 3 bis 5, dadurch gekennzeichnet, daß die Buchse (27) nach ihrer Endformung von dem Hilfskern (18) in die zweite Arbeitsebene und auf eine Spreizhülse (42) der Kalibrierstation geschoben wird..
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß während der Vorformung in der geschlossenen Stellung beider Formkammern (22,24) deren Umfangskontur - abgesehen von der Wandstärke der Buchse (27) - der Außenkontur des im Querschnitt vergrößerten Kerns (16,18) komplementär ist.
- Biegevorrichtung zur Herstellung von Buchsen (27) mit einem Kern, einem unteren Formstempel (12) und einem oberen Formstempel (14) zur Ausführung des Verfahrens nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Kern (16, 18) und die erste Formkammer (22) während des Vorformungsvorganges jeweils einen größeren Querschnitt aufweisen als während des Endformungsvorganges und in Richtung der U-Schenkel des Formlings verlängert sind.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß der erste Formstempel (12) einen in Buchsenachsrichtung verschiebbaren Schieber (20) lagert, der einen Teil der ersten Formkammer (22) bildet, und daß die Teilungsebene, des den Schieber (20) umfassenden ersten Formstempels (12) im Abstand von der Buchsenmitte auf der Seite des zweiten Formstempels liegt.
- Vorrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß der Kern (16) während der Vorformung durch einen Hilfskern (18) ergänzt ist, der mit einer konkaven Fläche auf dem Kern (16) aufsitzt und eine konvexe Arbeitsfläche aufweist, die zur Formkammerinnenfläche des zweiten Formstempels (14) komplementär ist.
- Vorrichtung nach Ansprüchen 9 und 10, dadurch gekennzeichnet, daß der Hilfskern (18) mit dem Schieber (20) eine verschiebbare Baueinheit bildet.
- Vorrichtung nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, daß der zweite Formstempel (14) aus zwei Hälften (14a, 14b) besteht, deren eine (14b) an der angetriebenen Hälfte (14a) mit ihrer Formkammerhälfte in Stempelbewegungsrichtung beweglich geführt ist und mittels Federkraft in eine zur anderen Stempelhälfte (14a) versetzte Ausgangslage vorgespannt ist, sodaß die Formkammer (24) an der Position der Buchsenränder zu deren Verzahnung eine Stufe (17) bildet.
- Vorrichtung nach einem der Ansprüche 8-12, dadurch gekennzeichnet, daß die beiden Formstempel (12, 14) eine Breite mindestens gleich der doppelten Breite der Buchse (27) aufweisen und axial neben ihren Formkammern (22, 24) jeweils eine Kalibrierkammer (34, 36) aufweisen, daß beide Kalibrierkammern (34, 6) dieselben Wölbungen wie ihre jeweils zugeordneten Formkammern (22, 24) aufweisen, sich aber jeweils nur über einen Umfangswinkel von 180° erstrecken und im Endformungsvorgang einen umfangsgeschlossenen Kalibrierhohlraum entsprechend der Außenmantelfläche der Buchse (27) bilden und daß in diesem Kalibrierhohlraum eine Spreizeinrichtung (40, 42) angeordnet ist.
- Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß der Kern (16) hohl ausgebildet ist und von einer axial bewegten Betätigungsstange (38) durchsetzt wird, die im Bereich des Kalibrierhohlraumes einen Konus (40) aufweist, der mit einem Innenkonus einer Spreizhülse (42) zusammenwirkt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19511095A DE19511095A1 (de) | 1995-03-25 | 1995-03-25 | Verfahren und Vorrichtung zum Rundbiegen von Buchsen |
DE19511095 | 1995-03-25 | ||
PCT/EP1996/001172 WO1996030139A1 (de) | 1995-03-25 | 1996-03-19 | Verfahren und vorrichtung zum rundbiegen von buchsen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0759822A1 EP0759822A1 (de) | 1997-03-05 |
EP0759822B1 true EP0759822B1 (de) | 1999-10-13 |
Family
ID=7757805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96908069A Expired - Lifetime EP0759822B1 (de) | 1995-03-25 | 1996-03-19 | Verfahren und vorrichtung zum rundbiegen von buchsen |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0759822B1 (de) |
JP (1) | JPH10501467A (de) |
KR (1) | KR970703207A (de) |
CN (1) | CN1064869C (de) |
AT (1) | ATE185502T1 (de) |
CA (1) | CA2220097A1 (de) |
DE (3) | DE19511095A1 (de) |
ES (1) | ES2138810T3 (de) |
RU (1) | RU2161544C2 (de) |
WO (1) | WO1996030139A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102172732A (zh) * | 2011-01-29 | 2011-09-07 | 昆山联德精密机械有限公司 | 级进模卷圆抽芯机构 |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1058916C (zh) * | 1998-06-15 | 2000-11-29 | 许红喜 | 一种用四铬十三棒料制造轴套的生产方法 |
DE19850220C2 (de) * | 1998-10-31 | 2003-01-02 | Turbo Clean Gmbh | Vorrichtung zum Herstellen von Buchsen |
DE102010037533A1 (de) * | 2010-09-14 | 2012-03-15 | Thyssenkrupp Steel Europe Ag | Vorrichtung und Verfahren zur Herstellung zumindest teilweise geschlossener Hohlprofile mit geringer Taktzeit |
CN102151753A (zh) * | 2011-01-08 | 2011-08-17 | 宁波轴瓦厂 | 轴套的一次冲卷成型模具 |
JP5788625B2 (ja) * | 2012-04-03 | 2015-10-07 | ティッセンクルップ スチール ヨーロッパ アクチェンゲゼルシャフトThyssenKrupp Steel Europe AG | 少なくとも部分的に閉じたプロファイルまたは管状部品を金属薄板から製作する装置および方法 |
CN102615152A (zh) * | 2012-04-23 | 2012-08-01 | 无锡铸华机械科技有限公司 | 一次弯圆成型工艺与模具 |
CN102962374B (zh) * | 2012-08-10 | 2015-02-25 | 贵州航天精工制造有限公司 | 马鞍型衬套零件的加工方法及装置 |
CN103624135A (zh) * | 2013-11-27 | 2014-03-12 | 安徽鑫龙电器股份有限公司 | 一种用于加工轴套的冲压复合模具及其加工方法 |
US11148183B2 (en) * | 2014-09-18 | 2021-10-19 | Nippon Steel Corporation | Method of producing shaped article, tooling, and tubular shaped article |
CN104324987B (zh) * | 2014-11-13 | 2016-05-04 | 广州科技职业技术学院 | 自动卷圆弯曲模***及其使用方法 |
CN104493486B (zh) * | 2014-12-23 | 2016-10-12 | 绵阳富临精工机械股份有限公司 | 一种ocv滤网卷制包夹装置及作业方法 |
CN105537471B (zh) * | 2016-02-03 | 2019-03-08 | 重庆金猫纺织器材有限公司 | 一种用于纺纱钢丝圈的高精密数控成型机床 |
CN106111837B (zh) * | 2016-06-17 | 2017-11-14 | 宁夏太阳镁业有限公司 | 一种用于镁结晶器的加工成型装置 |
WO2018168563A1 (ja) * | 2017-03-15 | 2018-09-20 | Jfeスチール株式会社 | プレス金型及び鋼管の製造方法 |
CN108393381B (zh) * | 2018-05-18 | 2023-12-05 | 秦皇岛兴龙轮毂有限公司 | 锥形滤网制作装置 |
DE102020000238B4 (de) | 2020-01-16 | 2022-08-04 | Fritz Stepper GmbH & Co. KG. | Kernstation |
CN111872885B (zh) * | 2020-07-01 | 2022-10-04 | 中国石油天然气股份有限公司 | 一种弹性球座卷曲安装工装和使用方法 |
CN112676418A (zh) * | 2020-12-07 | 2021-04-20 | 安徽科达汽车轴瓦有限公司 | 一种便于定位的轴瓦冲压定型装置 |
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US1330782A (en) * | 1918-09-05 | 1920-02-17 | Brown William Milton | Method of and apparatus for making ferrules |
US1802723A (en) * | 1928-12-19 | 1931-04-28 | Cleveland Graphite Bronze Co | Method of and apparatus for making bearings |
FR675967A (fr) * | 1929-05-30 | 1930-02-17 | Pont A Mousson Fond | Perfectionnements au procédé et aux installations pour la fabrication des tubes |
US2126473A (en) * | 1933-08-31 | 1938-08-09 | Gen Motors Corp | Method of making tubular articles |
US2077336A (en) * | 1935-01-07 | 1937-04-13 | Gen Motors Corp | Apparatus for forming circular bushings |
DE667949C (de) * | 1936-02-29 | 1938-11-23 | Sonntag G M B H R | Vorrichtung zur Herstellung von Rohren auf einer Abkantpresse |
US3675460A (en) * | 1970-06-08 | 1972-07-11 | Torin Corp | Four-slide machine with improved mandrel for producing bearings and the like |
US3973717A (en) * | 1975-04-21 | 1976-08-10 | Ppg Industries, Inc. | Bushing fabrication |
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-
1995
- 1995-03-25 DE DE19511095A patent/DE19511095A1/de not_active Withdrawn
- 1995-07-07 DE DE29511070U patent/DE29511070U1/de not_active Expired - Lifetime
-
1996
- 1996-03-19 KR KR1019960706661A patent/KR970703207A/ko not_active Application Discontinuation
- 1996-03-19 WO PCT/EP1996/001172 patent/WO1996030139A1/de active IP Right Grant
- 1996-03-19 AT AT96908069T patent/ATE185502T1/de not_active IP Right Cessation
- 1996-03-19 ES ES96908069T patent/ES2138810T3/es not_active Expired - Lifetime
- 1996-03-19 EP EP96908069A patent/EP0759822B1/de not_active Expired - Lifetime
- 1996-03-19 CA CA002220097A patent/CA2220097A1/en not_active Abandoned
- 1996-03-19 DE DE59603336T patent/DE59603336D1/de not_active Expired - Fee Related
- 1996-03-19 RU RU96124365/02A patent/RU2161544C2/ru not_active IP Right Cessation
- 1996-03-19 JP JP8528874A patent/JPH10501467A/ja not_active Ceased
- 1996-03-19 CN CN961902299A patent/CN1064869C/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102172732A (zh) * | 2011-01-29 | 2011-09-07 | 昆山联德精密机械有限公司 | 级进模卷圆抽芯机构 |
CN102172732B (zh) * | 2011-01-29 | 2013-01-16 | 昆山联德精密机械有限公司 | 级进模卷圆抽芯机构 |
Also Published As
Publication number | Publication date |
---|---|
ATE185502T1 (de) | 1999-10-15 |
WO1996030139A1 (de) | 1996-10-03 |
ES2138810T3 (es) | 2000-01-16 |
DE29511070U1 (de) | 1995-09-14 |
EP0759822A1 (de) | 1997-03-05 |
DE59603336D1 (de) | 1999-11-18 |
CN1148822A (zh) | 1997-04-30 |
DE19511095A1 (de) | 1996-09-26 |
JPH10501467A (ja) | 1998-02-10 |
CN1064869C (zh) | 2001-04-25 |
CA2220097A1 (en) | 1996-10-03 |
RU2161544C2 (ru) | 2001-01-10 |
KR970703207A (ko) | 1997-07-03 |
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