EP2671981B1 - Spinning or twisting ring - Google Patents
Spinning or twisting ring Download PDFInfo
- Publication number
- EP2671981B1 EP2671981B1 EP13002247.8A EP13002247A EP2671981B1 EP 2671981 B1 EP2671981 B1 EP 2671981B1 EP 13002247 A EP13002247 A EP 13002247A EP 2671981 B1 EP2671981 B1 EP 2671981B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spinning
- ring
- web
- foot flange
- crown
- 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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/02—Spinning or twisting arrangements for imparting permanent twist
- D01H7/52—Ring-and-traveller arrangements
- D01H7/60—Rings or travellers; Manufacture thereof not otherwise provided for ; Cleaning means for rings
- D01H7/602—Rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K21/00—Making hollow articles not covered by a single preceding sub-group
- B21K21/12—Shaping end portions of hollow articles
-
- 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
- B21D53/16—Making other particular articles rings, e.g. barrel hoops
Description
Die Erfindung betrifft einen Spinn- oder Zwirnring, welcher einen Fussflansch und eine Ringkrone aufweist, wobei Fussflansch und Ringkrone durch einen Steg verbunden sind. Der Spinn- oder Zwirnring ist einteilig in einem Tiefziehverfahren hergestellt.The invention relates to a spinning or twist ring, which has a foot flange and a ring crown, wherein the foot flange and ring crown are connected by a web. The spinning or twisting ring is produced in one piece in a deep drawing process.
Spinnringe werden in sogenannten Ringspinnmaschinen und Zwirnringe in sogenannten Zwirnmaschinen eingesetzt. Dabei wirken die Spinn- oder Zwirnringe mit auf der Ringkrone aufgesetzten Ringläufern zusammen. Die Ringläufer rotieren mit hohen Geschwindigkeiten auf der Ringkrone, was zu hohen Belastungen an den Kontaktflächen der Ringkrone führt. In der Herstellung von Spinn- oder Zwirnringen wird aus diesem Grund der Ringkrone besondere Bedeutung zugemessen. Der Fussflansch dient der Befestigung der Spinn- oder Zwirnringe in der Maschine. Die Ringkrone wie auch der Fussflansch werden in vielfältigen Ausführungen hergestellt, jeweils in Form und Geometrie angepasst an die Anforderungen der entsprechenden Maschine. Unabhängig von der Ausführung von Ringkrone oder Fussflansch umfassen die Spinn- oder Zwirnringe jeweils eine Ringkrone zur Aufnahme des Ringläufers, einen Fussflansch zur Befestigung und einen dazwischen liegenden Steg. In der Folge werden Spinnringe und Zwirnringe unter dem Begriff Spinnring zusammengefasst.Spinning rings are used in so-called ring spinning machines and twisting rings in so-called twisting machines. The spinning or twisting rings cooperate with ring rotors placed on the ring crown. The ring rotates rotate at high speeds on the ring crown, which leads to high loads on the contact surfaces of the ring crown. In the production of spinning or twisting rings of the ring crown particular importance is attributed. The foot flange is used to attach the spinning or twisting rings in the machine. The ring crown as well as the foot flange are manufactured in various designs, each in shape and geometry adapted to the requirements of the corresponding machine. Regardless of the design of ring crown or foot flange, the spinning or twisting rings each comprise a ring crown for receiving the ring traveler, a foot flange for attachment and an intermediate web. As a result, spinning rings and twisting rings are summarized under the term spinning ring.
Aus dem Stand der Technik sind verschiedene Verfahren zur Herstellung von Spinnringen bekannt. Beispielsweise beschreibt die
Spinnringe werden zur Verbesserung der Verschleissfestigkeit oftmals beschichtet, oberflächenbehandelt oder mit einem metallischen Schutzüberzug versehen. Auch spielt die Wahl des Werkstoffes für die Herstellungsprozesse eine wesentliche Rolle. Nachteilig an den offenbarten Herstellungsverfahren ist, dass die Konstruktion respektive Formgebung und Geometrie der Spinnringe jeweils nur auf die endgültige Verwendung der Spinnringe abgestimmt wird. Auch ist ein erhöhter Fertigungsaufwand nötig, um die Spinnringe in ihrer endgültigen Form durch ein Zusammensetzen aus mehreren Bauteilen mit hoher Genauigkeit herzustellen.
Dabei werden Anforderungen an die Eigenschaften des Ringes, welche aus dem Herstellverfahren heraus bestehen, vernachlässigt oder durch Änderung der Produktionsmethoden umgangen.Spinning rings are often coated, surface treated or provided with a metallic protective coating to improve wear resistance. Also, the choice of the material for the manufacturing processes plays an essential role. A disadvantage of the disclosed manufacturing method is that the construction respectively shape and geometry of the spinning rings is matched only to the final use of the spinning rings. Also, an increased manufacturing effort is needed to produce the spinning rings in their final form by assembling multiple components with high accuracy.
In this case, requirements for the properties of the ring, which consist of the manufacturing process, neglected or circumvented by changing the production methods.
Die Aufgabe der Erfindung ist es, einen Spinnring zu schaffen, bei welchem die, für eine optimale Prozessabfolge ausgerichteten Eigenschaften des Spinnringes beachtet werden und der Fertigungsaufwand minimiert wird.The object of the invention is to provide a spinning ring in which the oriented for an optimal process sequence properties of the spinning ring are observed and the manufacturing cost is minimized.
Die Aufgabe wird gelöst durch die Merkmale im kennzeichnenden Teil des unabhängigen Anspruchs.
Zur Lösung der Aufgabe wird ein neuartiger Spinn- oder Zwirnring vorgeschlagen mit einem Fussflansch, einer Ringkrone und einem Steg. Der Steg hat einen Steginnendurchmesser und eine Steghöhe welche sich zwischen dem Fussflansch und der Ringkrone erstreckt. Der Spinn- oder Zwirnring ist einteilig durch ein Tiefziehverfahren hergestellt. Der äussere Übergangsbereich vom Steg in den Fussflansch ist mit einem äusseren Radius von 0.2 bis 0.4 mm und der innere Übergangsbereich vom Steg in den Fussflansch ist mit einem inneren Radius von 1.0 bis 1.5 mm ausgebildet.
Bei einem Spinnring ist, durch den Einsatz der Ringläufer, die Ringkrone im Betrieb einer hohen Belastung ausgesetzt. Hinzu kommt, bedingt durch eine hohe Varianz an Einsatzmöglichkeiten der Spinnringe, eine grosse Vielfalt in der möglichen Formgebung der Ringkrone. Verglichen mit der Gesamtzahl an hergestellten Spinnringen ergeben sich durch die geometrische Vielfalt relativ geringe Stückzahlen für die einzelnen Spinnringe. Dieser Umstand ist bei der Wahl des Herstellungsverfahrens zu berücksichtigen. Eine kostengünstige und qualitativ hochstehende Möglichkeit der Formgebung bietet eine spanabhebende Bearbeitung der Ringkrone. Vor der spanabhebenden Bearbeitung wird ein Spinnring-Rohling hergestellt. Ein derartiger Rohling wiederum kann in grossen Stückzahlen hergestellt werden, da die endgültige Formgebung erst durch die spanabhebende Bearbeitung erfolgt. Der Rohling wird mit einem Tiefziehverfahren hergestellt. Das Tiefziehverfahren umfasst eine Kombination von Tiefzieh- und Press- respektive Stauchvorgängen. In diesem Tiefziehverfahren wird ein Rohling hergestellt, welcher den Fussflansch und den Steg in ihrer fertigen Form und die Ringkrone im Rohzustand umfasst. Eine derartige einteilige Herstellung eines Rohlings, bei welchem einzig die Ringkrone einen Rohzustand aufweist, verkürzt den Herstellungsprozess, und erlaubt eine günstigere Produktion.The object is solved by the features in the characterizing part of the independent claim.
To solve the problem, a novel spinning or twisting ring is proposed with a foot flange, a ring crown and a web. The web has a web inside diameter and a web height which extends between the foot flange and the ring crown. The spinning or twisting ring is made in one piece by a deep-drawing process. The outer transition area from the web to the foot flange is with an outer radius of 0.2 to 0.4 mm and the inner transition region from the web to the foot flange is formed with an inner radius of 1.0 to 1.5 mm.
In a spinning ring is exposed by the use of ring travelers, the ring crown during operation of a high load. In addition, due to a high variance of possible applications of the spinning rings, a great variety in the possible shape of the ring crown. Compared to the total number of spinning rings produced, the geometrical variety results in relatively small numbers of pieces for the individual spinning rings. This circumstance must be taken into account when choosing the manufacturing process. A cost-effective and high-quality possibility of shaping offers a machining of the ring crown. Before the machining, a spinning ring blank is produced. Such a blank in turn can be produced in large quantities, since the final shaping is done only by the machining. The blank is produced by a deep-drawing process. The deep-drawing process comprises a combination of thermoforming and pressing or upsetting processes. In this deep-drawing process, a blank is produced, which comprises the base flange and the web in their finished form and the ring crest in the raw state. Such a one-piece production of a blank, in which only the ring crown has a raw state, shortens the manufacturing process, and allows a more favorable production.
Der Rohling wird im Bereich des Steges und des Fussflansches bereits durch den Tiefzieh- und Pressvorgang in seiner endgültigen Form fertiggestellt. Durch die einstückige Herstellung erhält der Spinnring im Bereich des Überganges vom Steg in den Fussflansch eine typische, durch den Tiefziehprozess bedingte Form. Der Steg geht typischerweise in seinem axialen Verlauf in den Fussflansch über. Der Übergang vom Steg in den Fussflansch wird dabei durch die entstehenden Radien charakterisiert. Vorteilhaft ist es an dieser Stelle möglichst kleine Radien im Übergang vom Steg in den Fussflansch zu erreichen. Die Möglichkeiten werden jedoch dadurch begrenzt, dass durch den Tiefziehprozess Risse im Gefüge entstehen können, wenn die Umlenkung des Materials mit einem zu kleinen Radius ausgeführt wird. Als gut zu beherrschende Bereiche haben sich im äusseren Übergang vom Steg in den Fussflansch ein äusserer Radius von 0.2 bis 04 mm und im inneren Übergang vom Steg in Fussflansch ein innerer Radius von 1.0 bis 1.5 mm ergeben.The blank is already completed in the area of the web and the foot flange by the deep-drawing and pressing process in its final form. Due to the one-piece production of the spinning ring receives in the transition region from the web in the foot flange a typical, due to the deep-drawing process form. The web typically passes in its axial course in the foot flange. The transition from the web to the foot flange is characterized by the resulting radii. It is advantageous at this point to achieve the smallest possible radii in the transition from the bridge to the foot flange. However, the possibilities are limited by the fact that the deep-drawing process can cause cracks in the structure if the deflection of the material is carried out with too small a radius. As good to dominate areas have an outer radius of 0.2 to 04 mm in the outer transition from the bridge to the foot flange and an inner radius of 1.0 to 1.5 mm in the inner transition from the bridge in the foot flange.
Bei der spanabhebenden Bearbeitung der Ringkrone wird der Spinnring-Rohling in eine entsprechende Bearbeitungsmaschine, vorzugsweise einen Drehautomaten, eingespannt. Die Befestigung des Rohlings erfolgt dabei über den Steg oder bevorzugterweise über den Fussflansch. Greift nun das Werkzeug in das Material ein, entstehen, bedingt durch den Eingriffsort und den Befestigungsort, Torsionskräfte, welche zwischen Werkzeug-Eingriffspunkt und Einspannort über den Steg abgeleitet werden müssen. Aufgrund der heute zum Einsatz kommenden Hochleistungsmaschinen entstehen Kräfte, die eine entsprechende Ausgestaltung des Steges verlangen, um nicht zu einer Verformung des Spinnringes zwischen Ringkrone und Fussflansch zu führen. Die Ausgestaltung des Spinnringes durch die einteilige Fertigung mittels Tiefziehverfahren führt zu einer Steigerung der Torsionsfestigkeit. Ein Tiefziehprozess bewirkt eine Umlenkung des Materials, wodurch sich eine Längsausrichtung des Gefüges ergibt. Im Gegensatz dazu wird bei einer spanabhebenden Bearbeitung des Materials das Gefüge nicht verändert. Bei einer Bearbeitung mit einem Drehautomaten entstehen sogenannte Drehrillen, welche eine zusätzliche Schwächung des Bauteils bewirken. Durch die Herstellung eines einteiligen Rohlings kann die Einspannung zur Bearbeitung der Ringkrone sehr einfach auf den bereits fertig ausgebildeten Fussflansch ausgerichtet werden. Damit kann eine höhere Genauigkeit der Ringkrone in bezug auf den Fussflansch und damit die spätere Befestigung in der Spinn- oder Zwirnmaschine erreicht werden. Ein Zusammensetzen des Spinnringes aus mehreren Bauteilen entfällt, was zu einer Verbesserung der Masshaltigkeit der Spinnringe insgesamt beiträgt.In the machining of the annular crown of the spinning ring blank is clamped in a corresponding processing machine, preferably a lathe. The attachment of the blank takes place via the web or preferably via the foot flange. If the tool now engages in the material, torsional forces, which must be derived between the tool engagement point and the clamping location via the web, arise as a result of the location of engagement and the location of attachment. Due to the high-performance machines used today, forces which require a corresponding design of the web are not created Deformation of the spinning ring between ring crown and foot flange to lead. The design of the spinning ring by the one-piece production by deep drawing process leads to an increase in torsional strength. A deep drawing process causes a deflection of the material, resulting in a longitudinal alignment of the structure. In contrast, in a machining of the material, the structure is not changed. When machining with a lathe so-called rotating grooves, which cause additional weakening of the component. By producing a one-piece blank, the clamping for machining the ring crown can be easily aligned with the already finished foot flange. Thus, a higher accuracy of the ring crown with respect to the foot flange and thus the subsequent attachment in the spinning or twisting machine can be achieved. A composition of the spinning ring of several components is eliminated, which contributes to an improvement in the dimensional accuracy of the spinning rings as a whole.
Das Tiefziehwerkzeuges wird mit einer Formgebung und Oberfläche ausgestaltet welche sich auf das herzustellende Produkt derart auswirkt, dass ein optimaler Verlauf des Gefüges entsteht ohne dass sich Risse ausbilden. Vorteilhafterweise wird dadurch im Bereich des Überganges vom Steg in den Fussflansch ein störungsfreier Materialfluss erreicht. Die dabei entstehenden Radien betragen bevorzugterweise für den äusseren Radius 0.2 mm und für den inneren Radius 1.0 mm. Der innere Radius kann in seinem Verlauf ändern, das heisst es ergibt sich durch den Tiefziehprozess eine Art Krümmung der Oberfläche, welche an ihrer engsten Stelle einem inneren Radius entspricht. Der Verlauf der gekrümmten Oberfläche folg jedoch nicht exakt einem Kreisbogen. Weitere Einflussfaktoren stellen die zur Anwendung kommende Presskraft oder die Geschwindigkeit (Taktzeit) des Tiefzieh- und Pressvorganges dar. Die verschiedenen Einflüsse und deren Auswirkungen bei entsprechender Beachtung sind dem Fachmann bekannt.The deep-drawing tool is designed with a shape and surface which affects the product to be produced in such a way that an optimal course of the structure is formed without cracks forming. Advantageously, a trouble-free flow of material is thereby achieved in the region of the transition from the web to the foot flange. The resulting radii are preferably 0.2 mm for the outer radius and 1.0 mm for the inner radius. The inner radius can change in its course, which means that the deep-drawing process results in a kind of curvature of the surface, which at its narrowest point corresponds to an inner radius. However, the course of the curved surface does not exactly follow a circular arc. Other influencing factors are the pressing force used or the speed (cycle time) of the deep-drawing and pressing process. The various influences and their effects, with due regard, are known to the person skilled in the art.
Notwendigerweise ist der Spinnring aus einem Stahl aus der Gruppe DC03 bis DC07 nach DIN EN 10 130 hergestellt. Die Norm DIN EN 10 130 gilt für kaltgewalzte Flacherzeugnisse aus weichen Stählen zum Kaltumformen. Die Stahlsorten werden als vollständig beruhigte Stähle geliefert und sind in der Regel in einem kalt nachgewalzten Zustand. Die nach dieser Norm hergestellten Erzeugnisse sind frei von Fliessfiguren. Dadurch wird ein fehlerfreies Tiefziehen ermöglicht. Die Erzeugnisse dieser Stahlgruppe eignen sich auch für ein nachträgliches Aufbringen eines metallischen Schutzüberzuges, beispielsweise durch Schmelztauchen oder elektrolytische Verfahren. Beansprucht ist der Spinnring aus dem Stahl DC04 nach DIN EN 10 130 hergestellt.Necessarily, the spinning ring is made of a steel from the group DC03 to DC07 according to DIN EN 10 130. The
Für die einteilige Fertigung des Spinnringes ergeben sich vorteilhafte Dimensionsverhältnisse. Bedingt durch den Tiefziehprozess erstreckt sich der Fussflansch nicht in den Bereich des Steginnendurchmessers. Die Dicke des Fussflansches und die Höhe des Steges können aufgrund des späteren Einsatzgebietes des Spinn- oder Zwirnringes variieren, wobei bevorzugterweise die Steghöhe jeweils zumindest der zweifachen Fussflanschdicke entspricht.For the one-piece production of the spinning ring, advantageous dimensional ratios result. Due to the deep drawing process, the foot flange does not extend into the area of the inside diameter of the bridge. The thickness of the foot flange and the height of the web can vary due to the later field of use of the spinning or twisting ring, wherein preferably the web height corresponds in each case at least twice the Fußflanschdicke.
Für die Durchführung des Tiefziehprozesses wird bevorzugterweise ein Rohstahl in Form eines Bandstahles verwendet. Die Verwendung von Bandstahl vereinfacht den Tiefziehprozess und ermöglicht zudem eine materialsparende Fertigung. Die Vereinfachung des Herstellungsprozesses liegt darin, dass vor dem eigentlichen Tiefziehen keine Rohlinge beispielsweise in Form von Blech-Rondellen hergestellt werden müssen.For carrying out the deep-drawing process, a crude steel in the form of a strip steel is preferably used. The use of strip steel simplifies the deep-drawing process and also enables material-saving production. The simplification of the manufacturing process is that before the actual deep drawing no blanks must be made for example in the form of sheet metal rondels.
Vorteilhafterweise ist die Ringkrone spanabhebend nachbearbeitet. Dadurch kann eine individuelle Formgebung der Ringkrone erfolgen ohne die im vorgängigen Tiefzieh- und Pressvorgang verwendeten Werkzeuge anpassen zu müssen.Advantageously, the ring crown is machined by machining. This allows an individual shaping of the ring crown done without having to adapt the tools used in the previous thermoforming and pressing process.
Im Folgenden wird die Erfindung anhand von einer beispielhaften Ausführungsform erklärt und durch Zeichnungen näher erläutert.
-
Fig. 1 Schematische Darstellung eines Querschnitts eines Spinnringes -
Fig. 2 Schematische Darstellung einer Vergrösserung des Querschnittes ausFigur 1
-
Fig. 1 Schematic representation of a cross section of a spinning ring -
Fig. 2 Schematic representation of an enlargement of the cross sectionFIG. 1
- 11
- Spinnringspinning ring
- 22
- Fussflanschbase flange
- 33
- Stegweb
- 44
- Ringkronering Krone
- 55
- SteginnendurchmesserWeb inner diameter
- 66
- SteghöheBase height
- 77
- Übergangsbereich aussenTransition area outside
- 88th
- Übergangsbereich innenTransition area inside
- 99
- Übergang Steg in FussflanschTransition bridge in foot flange
- 1010
- Äusserer RadiusExternal radius
- 1111
- Innerer RadiusInner radius
- 1212
- Bearbeitungsfläche RingkroneWorking surface Ring crown
- 1313
- FussflanschdickeFussflanschdicke
Claims (7)
- A spinning or twisting ring (1) having a foot flange (2) with a foot flange thickness (13), a ring crown (4) and a web (3) with an inside diameter (5) of the web and a web height (6), which extends between the foot flange (2) and the ring crown (4), characterized in that the spinning or twisting ring (1) is manufactured in one piece by a deep-drawing method from the material DC 04 according to DIN EN 10 130, wherein the inner transitional area (8) is designed to extend from the web (3) into the foot flange (2) with an inside radius (11) of 1.0 to 1.5 mm, and the outer transitional area (7) is designed to extend from the web (3) into the foot flange (2) with an outside radius (10) of 0.2 to 0.4 mm.
- The spinning or twisting ring (1) according to any one of the preceding claims, characterized in that the foot flange (2) does not extend into the area of the inside diameter (5) of the web.
- The spinning or twisting ring (1) according to any one of the preceding claims, characterized in that the web height (6) corresponds at least to twice the thickness (13) of the foot flange.
- The spinning or twisting ring (1) according to any one of the preceding claims, characterized in that the ring crown (4) is reworked by machining.
- The spinning or twisting ring (1) according to any one of the preceding claims, characterized in that the spinning or twisting ring (1) is manufactured from strip steel.
- The spinning or twisting ring (1) according to any one of the preceding claims, characterized in that the inner transitional area (8) is designed to extend from the web (3) into the foot flange (2) with an inside radius (11) of 1.0 mm.
- The spinning or twisting ring (1) according to any one of the preceding claims, characterized in that the outer transitional area (7) is designed to extend from the web (3) into the foot flange (2) with an outside radius (10) of 0.2 mm.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00801/12A CH706605A1 (en) | 2012-06-08 | 2012-06-08 | Spinning or twisting ring. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2671981A2 EP2671981A2 (en) | 2013-12-11 |
EP2671981A3 EP2671981A3 (en) | 2015-04-22 |
EP2671981B1 true EP2671981B1 (en) | 2016-08-17 |
Family
ID=48366078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13002247.8A Active EP2671981B1 (en) | 2012-06-08 | 2013-04-26 | Spinning or twisting ring |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2671981B1 (en) |
CN (1) | CN103484996B (en) |
CH (1) | CH706605A1 (en) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US216730A (en) * | 1879-06-24 | Improvement in tools for making spinning-rings | ||
US4790169A (en) * | 1986-01-28 | 1988-12-13 | Adolph Coors Company | Apparatus for doming can bottoms |
US5249447A (en) * | 1989-02-16 | 1993-10-05 | Toyo Seikan Kaisha Ltd. | Process for preparation of thickness-reduced deep-draw-formed can |
CN1037789C (en) * | 1992-03-21 | 1998-03-18 | 邵礼宏 | Ring and traveller with multi-point contact of lower supporter |
DE19503321A1 (en) * | 1995-02-02 | 1996-01-04 | Braecker Ag | Producing spinner ring |
CH690779A5 (en) | 1995-12-28 | 2001-01-15 | Braecker Ag | A method for molding a spinning or twisting ring, as well as according to the procedure shaped spinning or twisting ring. |
US6360521B1 (en) * | 1998-02-04 | 2002-03-26 | Bracker Ag | Ring for ring frames and ring twisters |
DE19834361A1 (en) * | 1998-07-30 | 2000-02-03 | Schaeffler Waelzlager Ohg | Precision deep-drawn case-hardened component, especially a roller bearing and motor component e.g. a needle bearing, sleeve or bush, is made from a cold rolled strip of steel with specified titanium, nitrogen and low aluminum contents |
CN2494365Y (en) * | 2001-08-09 | 2002-06-05 | 晋中经纬钢领制造有限公司 | Conic ring and traveller device |
CN2895453Y (en) * | 2006-05-16 | 2007-05-02 | 金坛市纺织机械专件制造厂 | Ring for cylindrical-surface internal spinning |
WO2012045701A1 (en) * | 2010-10-07 | 2012-04-12 | Adval Tech Holding Ag | Method for producing tapered components in a deep-drawing process and components produced by this method |
-
2012
- 2012-06-08 CH CH00801/12A patent/CH706605A1/en not_active Application Discontinuation
-
2013
- 2013-04-26 EP EP13002247.8A patent/EP2671981B1/en active Active
- 2013-06-07 CN CN201310224924.5A patent/CN103484996B/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2671981A2 (en) | 2013-12-11 |
CH706605A1 (en) | 2013-12-13 |
CN103484996A (en) | 2014-01-01 |
CN103484996B (en) | 2017-05-24 |
EP2671981A3 (en) | 2015-04-22 |
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