EP1689541B1 - Verfahren und system zur herstellung von federn aus draht mit kreisförmiger oder anderer querschnittsfläche - Google Patents

Verfahren und system zur herstellung von federn aus draht mit kreisförmiger oder anderer querschnittsfläche Download PDF

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Publication number
EP1689541B1
EP1689541B1 EP04769060A EP04769060A EP1689541B1 EP 1689541 B1 EP1689541 B1 EP 1689541B1 EP 04769060 A EP04769060 A EP 04769060A EP 04769060 A EP04769060 A EP 04769060A EP 1689541 B1 EP1689541 B1 EP 1689541B1
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EP
European Patent Office
Prior art keywords
spring
wire
turn
diameter
production
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Not-in-force
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EP04769060A
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English (en)
French (fr)
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EP1689541A1 (de
Inventor
Panagiotis Anagnostopoulos
Antonios Anagnostopoulos
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F3/00—Coiling wire into particular forms
    • B21F3/10—Coiling wire into particular forms to spirals other than flat, e.g. conical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F3/00—Coiling wire into particular forms
    • B21F3/02—Coiling wire into particular forms helically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F3/00—Coiling wire into particular forms
    • B21F3/02—Coiling wire into particular forms helically
    • B21F3/04—Coiling wire into particular forms helically externally on a mandrel or the like

Definitions

  • the present invention refers to a method and a system of production of springs of wire of circular or other cross-sectional area, that are produced not directly from raw wire but after first producing cylindrical springs with a diameter smaller or equal to the smallest diameter and have pitch smaller or equal to the smallest pitch of the desired finalized spring.
  • a system according to the preamble of claim 6 is e.g. known from SU-A-988430 .
  • the springs are produced in many ways that are all without exception based on the following method: for bending the spring at least three points (a, b, c) are required on which the wire has to be pressed in order to be bent. The two outer points (a & c) push the wire in the same direction and the middle one (b) in an opposite direction ( Figure 1). If the spring is advanced from one side so as to go through these three points, then the result is to have production of circular springs (9). The spring turns always tend to be produced tangent to one another with about zero pitch advance. If though we compress the produced spring turn at a fourth point after production in a direction normal to its plane, then analogous pitch is generated.
  • each spring is produced in two stages.
  • the spring is produced (6) that is cylindrical of constant diameter and small pitch.
  • the spring can leave a minimal zero pitch (8).
  • the initial spring (6) does not acquire many spring turns because from its inception we utilize it to form the final spring (7) that has the desired spring turn diameters and pitches.
  • the initial spring (6) is produced as follows: the wire is wrapped around a central roller (1) of selected diameter that has a revolving motion.
  • the wire is compressed by one or multiple rollers (2), (3), (4) onto the perimeter of the central roller (1).
  • the rollers (2), (3), (4) can have motion.
  • This initial spring (6) is formed such as to have a diameter smaller or equal to the smallest of the diameters that we desire to impart to the final spring (7).
  • the rectilinear wire passing through the rollers is compressed to enter through three point mechanisms so as to be bent and thus with the continuous advance to form the spring turn and the desired diameter.
  • the pressure exerted to transform the straight wire to a circle is accomplished from the outer direction towards the inner one.
  • the pressure exerted to create the diameters is accomplished in a totally different fashion from the inner direction towards the outer one because we have to form not the wire, that has first been straightened, but an already prepared cylindrical spring whose existing diameter and pitch we would like to enlarge.
  • the desired final spring (7) is formed with the desired diameter and pitches then with a suitable severing mechanism the spring is cut to the desired point and then again commences the production of the subsequent spring.
  • the diameter of the wire is taken into consideration as well as the smallest diameter that the final spring (7) will have, so as to select the proper diameter of the central revolving roller (1) so as to form the analogous initial cylindrical spring (6).
  • the central roller (1) it is not necessary to wrap many spring turns, since already with the turning of the wire onto a portion only of the circumference, the bending corresponding to the diameter of the initial spring (6) has been achieved.
  • the central roller (1) prefferably has a width of only a few millimetres or at minimum as much as the diameter of the processed wire.
  • the formed spring turns are exiting axially from the roller (1) being pushed by each newly produced spring turn.
  • the cylindrical spring can also be accomplished by a fewer 180° turning of the wire around the roller (1).
  • the start of the first spring turn that leaves its encapsulation between the central roller (1) and the final roller (3) that compresses it, is ready to accept its further formation in order to develop the desired final diameter and to impart the final desired pitch.
  • the source of motion of the pin (5) to form the diameter and spring turn pitch can be situated on an axle (10) that is suitably situated on a base (11).
  • This second mechanical element is not shown in the accompanying figures.
  • the motion of the rollers that have motion and of the axle (10) that transmits the motion through the elbow (12) to the pin (5) is directed, controlled and coordinated by a suitable electronic computer, through which we can input the proper variables and characteristics of the final spring undergoing production, which are selectively the diameter and the pitch of each spring turn, so as to direct properly the operation of the system.
  • the present invention is not restricted by any means in the depicted embodiment that is described and presented in the fig ures as an example, but can be accomplished in many forms and dimensions without deviation from the protection rights as defined by the scope of the appended claims.
  • the materials utilized as well as the dimensions of the individual mechanical components can be adapted to the needs of the individual construction design.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Springs (AREA)

Claims (10)

  1. Verfahren zur Herstellung von Federn aus Draht mit kreisförmigem oder anders geartetem Querschnitt, umfassend die Schritte des Herstellens, zunächst aus dem Draht, einer zylindrischen Feder (6) mit einem Durchmesser und einer Steigung, die kleiner gleich dem kleinsten Durchmesser bzw. der kleinsten Steigung der produziert werdenden fertigen Feder (7) sind, wobei jede Federwindung der zylindrischen Ausgangsfeder (6) in dem Moment, in dem sie gemäß dem gewählten Durchmesser geformt wurde, mit einem geeigneten Mittel regelbar von innen nach außen und gleichzeitig entlang der Richtung der Längsachse der Feder der Federvorschubrichtung gedrückt wird, wobei die Energie infolgedessen ihren Ausgangsdurchmesser zu vergrößern hat, der dementsprechend die gewählte Abmessung der Federwindung der fertigen Feder (7) annimmt, wobei sie durch die gleichzeitige geregelte Kraft derselben Federwindung in Richtung der Federvorschubrichtung geeignet gebogen wird und die gewählte Steigung der Federwindung der fertigen Feder (7) annimmt, wobei durch die kontinuierliche Einstellung auf jeder neuen Federwindung der Ausgangsfeder (6), die hergestellt wird, die fertige Feder (7) hergestellt wird.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Weiterverarbeitung der Federwindung der Ausgangsfeder (6) beginnen kann, ehe die Ausgangsfeder fertiggestellt wurde, frühestens nachdem der Draht bereits die dauerhafte Biegung angenommen hat, die dem Durchmesser der Ausgangsfeder (6) entspricht.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Draht während der Herstellung der zylindrischen Ausgangsfeder (6), die durch das Ziehen und das Wickeln des Drahtes rund um eine geeignete umlaufende mittige Walze (1) geformt wird, auf diese gedrückt wird, vorzugsweise mittels mehr als einer Walze (2, 3, 4).
  4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die zylindrische Feder durch Wickeln des Drahtes auf eine umlaufende Walze (1) hergestellt wird, wobei der Draht zugleich mit Walzen (2, 3, 4) mit geeignetem Druck an diese gepresst wird, so dass neben dem Biegen des Drahtes auch die analoge Funktion, einen starken Zug des Drahtes zu gewährleisten, vorgesehen wird.
  5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Herstellen der Steigung und des Durchmessers jeder Federwindung der fertigen Feder (7) nach einander mit unabhängigen Bewegungen realisiert werden kann.
  6. System zur Herstellung von Federn aus Draht mit kreisförmigem oder anders geartetem Querschnitt, bestehend aus einer mittigen umlaufenden Walze (1), an welche um den Umfang mehr als eine andere Walze mit Druck angedrückt werden, um diese zu umgeben, um den Draht zu ziehen und zu biegen und so die Ausgangsfeder (6) herzustellen, dadurch gekennzeichnet, dass es ferner besteht aus einem Ellbogenglied (12) mit einem geeigneten Stift (5) an dessen einem Ende und dass es ausgebildet ist, um die hervortretende Federwindung von ihrer inneren und unteren Seite zu kontaktieren, wobei der Ellbogen (12) mit einer Achse (10) verbunden ist, die auf einer geeigneten Basis (11) aufliegt, die sich regelbar um ihre Achse drehen kann und dadurch den Ellbogen mit dem Stift (5) zu der Außenseite der Feder hin bewegt und sich zugleich regelbar die Richtung der Achse der Feder entlang bewegen kann.
  7. System zur Herstellung von Federn aus Draht mit kreisförmigem oder anders geartetem Querschnitt nach Anspruch 6, dadurch gekennzeichnet, dass es zwei Ellbogen mit Stiften an deren jeweiligen Enden umfasst, die mit geeignet gelagerten Achsen verbunden sind, wobei der erste Stift ausgebildet ist, um die Federwindung der Ausgangsfeder (6) zu berühren und sich zu bewegen und diese dabei von innen nach außen zu drücken, um den gewählten Federwindungsdurchmesser der fertigen Feder (7) herzustellen, und der zweite Stift ausgebildet ist, um die Federwindung der Ausgangsfeder (6) zu berühren und sich die Richtung der Längsachse der Feder entlang in der Federvorschubrichtung zu bewegen, um die gewählte Federwindungssteigung der fertigen Feder (7) zu herzustellen.
  8. System zur Herstellung von Federn mit kreisförmigem oder anders geartetem Querschnitt nach Anspruch 6, dadurch gekennzeichnet, dass Walzen (2, 3, 4), die mit der mittigen Walze (1) in Kontakt stehen, mehr als eine dem Querschnitt des Drahtes entsprechende, und vorzugsweise drei sind.
  9. System zur Herstellung von Federn mit kreisförmigem oder anders geartetem Querschnitt nach Anspruch 6, dadurch gekennzeichnet, dass es möglich ist, neben der Hauptwalze (1) anderen Walzen (2, 3, 4) selektiv in Bewegung zu versetzen.
  10. System zur Herstellung von Federn mit kreisförmigem oder anders geartetem Querschnitt nach Anspruch 6, dadurch gekennzeichnet, dass die Bewegungen der Walzen (1, 2, 3 und 4), die bewegt werden, und der Achse (10), die den Stift (5) über den Ellbogen (12) bewegt, durch einen geeigneten elektronischen Rechner gelenkt, gesteuert und koordiniert werden, mittels welchem die erforderlichen Eigenschaften der fertigverarbeiteten Feder (7), wobei es sich um den gewählten Durchmesser und die gewählte Steigung an jeder Federwindung handelt, eingegeben werden.
EP04769060A 2003-10-02 2004-10-01 Verfahren und system zur herstellung von federn aus draht mit kreisförmiger oder anderer querschnittsfläche Not-in-force EP1689541B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GR20030100404A GR1006845B (el) 2003-10-02 2003-10-02 Μεθοδος και συστημα παραγωγης ελατηριων απο συρμα κυκλικης ή αλλης διατομης
PCT/GR2004/000047 WO2005030411A1 (en) 2003-10-02 2004-10-01 Method and system of production of springs from wire of circular or other cross-sectional area

Publications (2)

Publication Number Publication Date
EP1689541A1 EP1689541A1 (de) 2006-08-16
EP1689541B1 true EP1689541B1 (de) 2007-12-12

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Application Number Title Priority Date Filing Date
EP04769060A Not-in-force EP1689541B1 (de) 2003-10-02 2004-10-01 Verfahren und system zur herstellung von federn aus draht mit kreisförmiger oder anderer querschnittsfläche

Country Status (10)

Country Link
US (1) US20080245122A1 (de)
EP (1) EP1689541B1 (de)
JP (1) JP2007507357A (de)
CN (1) CN100408222C (de)
AT (1) ATE380613T1 (de)
BR (1) BRPI0414949A (de)
DE (1) DE602004010715D1 (de)
EA (1) EA008178B1 (de)
GR (1) GR1006845B (de)
WO (1) WO2005030411A1 (de)

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JP4913703B2 (ja) * 2007-10-31 2012-04-11 旭精機工業株式会社 コイルばね製造機及びコイルばね製造方法
KR100952844B1 (ko) * 2007-12-20 2010-04-15 대원강업주식회사 배럴형 코일 스프링의 제작 장치 및 방법
CH699955A1 (de) * 2008-11-25 2010-05-31 Remex Ag Verfahren und Vorrichtung zur Herstellung von Federn.
EP2390566A1 (de) * 2010-05-31 2011-11-30 Siemens Aktiengesellschaft Vorrichtung zum Herstellen von Einbaukörpern für Dampferzeugerrohre
JP5839714B2 (ja) * 2012-12-14 2016-01-06 サンコール株式会社 ぜんまいばねの製造方法
KR101419698B1 (ko) * 2014-03-25 2014-07-21 대원강업 주식회사 열간 코일스프링 제조장치
KR101891936B1 (ko) * 2015-06-25 2018-08-24 오리이멕 가부시키가이샤 코일 스프링 제조방법 및 코일 스프링 제조장치
RU2647965C2 (ru) * 2016-09-13 2018-03-21 Общество с ограниченной ответственностью "Научно-производственный центр "Пружина" Способ обработки опорных витков пружин и роботизированный комплекс для его осуществления
CN106334773B (zh) * 2016-11-29 2018-01-30 浙江心梦享家居有限公司 S簧滚弯机中的滚弯调节机构
CN108160878B (zh) * 2016-11-29 2019-05-24 浙江心梦享家居有限公司 S簧滚弯机中带缓冲环的滚弯机构
CN108160862A (zh) * 2016-11-29 2018-06-15 浙江心梦享家居有限公司 一种改进的s簧的滚弯机
CN108838257A (zh) * 2018-06-16 2018-11-20 南京溧水丽华弹簧厂 一种用于生产弹簧圈的设备
CN111531483B (zh) * 2020-05-08 2021-08-03 上海弘智金属制品有限公司 一种借助推力反向运转来固定机械稳定性的夹具装置
CN113414326B (zh) * 2021-06-24 2024-04-19 黄山立铖精密弹簧有限公司 一种圆柱弹簧生产用成型装置及其成型方法

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Also Published As

Publication number Publication date
GR1006845B (el) 2010-07-05
CN100408222C (zh) 2008-08-06
EA200600569A1 (ru) 2006-08-25
WO2005030411A1 (en) 2005-04-07
JP2007507357A (ja) 2007-03-29
BRPI0414949A (pt) 2007-03-27
GR20030100404A (el) 2005-06-15
EP1689541A1 (de) 2006-08-16
CN1863618A (zh) 2006-11-15
ATE380613T1 (de) 2007-12-15
US20080245122A1 (en) 2008-10-09
DE602004010715D1 (de) 2008-01-24
EA008178B1 (ru) 2007-04-27

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