EP0252211A2 - Machine for winding springs - Google Patents

Machine for winding springs Download PDF

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Publication number
EP0252211A2
EP0252211A2 EP87103047A EP87103047A EP0252211A2 EP 0252211 A2 EP0252211 A2 EP 0252211A2 EP 87103047 A EP87103047 A EP 87103047A EP 87103047 A EP87103047 A EP 87103047A EP 0252211 A2 EP0252211 A2 EP 0252211A2
Authority
EP
European Patent Office
Prior art keywords
machine
mandrel
spring
machine according
wire
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
Application number
EP87103047A
Other languages
German (de)
French (fr)
Other versions
EP0252211A3 (en
EP0252211B1 (en
Inventor
Manfred Plugge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thema-Federn & Co KG Industriefedern GmbH
Thema Federn GmbH and Co KG
Original Assignee
Thema-Federn & Co KG Industriefedern GmbH
Thema Federn GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Thema-Federn & Co KG Industriefedern GmbH, Thema Federn GmbH and Co KG filed Critical Thema-Federn & Co KG Industriefedern GmbH
Priority to AT87103047T priority Critical patent/ATE68730T1/en
Publication of EP0252211A2 publication Critical patent/EP0252211A2/en
Publication of EP0252211A3 publication Critical patent/EP0252211A3/en
Application granted granted Critical
Publication of EP0252211B1 publication Critical patent/EP0252211B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 invention relates to a machine for winding springs of the type specified in the preamble of claim 1.
  • the invention has for its object to provide a fully automatic spring winding machine that is electronically programmable and controllable.
  • the spring winding machine enables the fully automatic, electronically controlled production of helical compression springs, helical tension springs, leg springs and the like, it also being possible to predefine the number. It can be used to wind springs with a wire diameter of up to 30mm cold and up to 50mm warm, and the finished springs can be collected in a container underneath the machine, because all the springs are wound on the side of the machine bed.
  • a machine bed (1) is attached to the side of a machine frame (2) and forms a sliding guide for two carriages (3) and (4), which can be moved relative to one another via mandrel pull cylinders (5), but when winding a spring together according to the spring winding path through a spindle (not shown) located in the machine bed (1) can be moved.
  • the drive motor for the spindle is indicated at (6).
  • a long mandrel (7) is rotatably attached at one end in the carriage (4) and is centered by a cone (8) at the other end in a driver (9) which is rotated on the carriage (3) by a drive (10) to wind the end of a wire feed (11) with simultaneous advance of the carriage (3, 4) around the mandrel (7) until the preselected number of turns of a spring is wound.
  • the mandrel (7) inevitably rotates. It can be supported by two lower support bezels (12) and an upper support bezel (13), which can be adjusted according to the pressure gauge of the mandrel (7).
  • the upper support bezel (13) is generally not used for right-handed springs; it may be used with left-handed springs.
  • the driver (9) rotates back a little so that the spring is relaxed and loses its frictional engagement with the mandrel (7).
  • the slides (3, 4) are moved apart by program-controlled actuation of the mandrel pull cylinders (5), so that the mandrel (7) is pulled out of the spring, which is then still seated on the wire feeder (11) in the insertion rollers (14).
  • These are on a support-like adjustment device (15) on the machine frame (2) in height and perpendicular to the axis of the Dorns (7) adjustable.
  • the insertion rollers (14) are pivotally mounted about a vertical axis so that they can adjust to the pitch of the spring turns. In this position, they can then be determined by an actuating cylinder (16).
  • a pair of scissors (17) (see FIG. 2) is pivotably mounted on the adjusting device (15). These scissors (17) are pivoted towards the wound spring or the wire feed (11) and cut the spring off the wire feed (11). The finished spring can then fall into a container (not shown) under the machine, since the machine bed (1) is arranged on the side.
  • the wire feed (11) takes place from a reel (18), two such reels (18) being attached to a two-arm support (20) rotatably mounted on a column (19), in such a way that the one reel (18) is in the working position and the other is in the waiting or loading position.
  • the mandrel pull cylinders (5) are clamped in brackets (21) and are additionally held by connecting straps (22).

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

Abstract

The machine has a gripper for the end of the spring wire and a rotatable mandrel as well as a feeding drive. The mandrel (7) can be clamped between two slides (3, 4) which can be moved in relation to each other but together during the winding operation on a laterally arranged machine bed (1). Shears which can be swung in, for cutting the wound spring off from the wire feed, are provided. Two wire reels (18) are mounted, in such a way that they can swivel between a working position and a material-changing position, on a two-armed carrier (20) on a column (19) fixedly located on the machine frame (2). <IMAGE>

Description

Die Erfindung bezieht sich auf eine Maschine zum Wickeln von Federn der im Oberbegriff des Patentanspruchs 1 angegebenen Gattung.The invention relates to a machine for winding springs of the type specified in the preamble of claim 1.

Bekannte Federwickelmaschinen arbeiten nach dem Drehbankprinzip. Bei großen Federdrahtdurchmessern, zum Beispiel bis 30 mm kaltverformt, ist mit den bekannten Drehbank-Federwickelmaschinen kaum automatisches Herstellen einer vorwählbaren Stückzahl von Schraubenzug- oder- druckfedern möglich. Die Feder muß vom in axialer Richtung feststehenden Dorn abgenommen werden, nachdem sie irgendwie von der Drahtzufuhr abgeschnitten worden ist. Da das Maschinenbett unten ist, kann die fertig gewickelte Feder in das Maschinenbett hineinfallen.Known spring winding machines work on the lathe principle. In the case of large spring wire diameters, for example up to 30 mm cold-formed, it is hardly possible with the known lathe spring winding machines to automatically produce a preselectable number of coil tension or compression springs. The spring must be removed from the axially fixed mandrel after it has been somehow cut from the wire feed. Since the machine bed is at the bottom, the fully wound spring can fall into the machine bed.

Der Erfindung liegt die Aufgabe zugrunde, eine vollautomatisch arbeitende Federwickelmaschine zu schaffen, die elektronisch programmierbar und steuerbar ist.The invention has for its object to provide a fully automatic spring winding machine that is electronically programmable and controllable.

Diese Aufgabe wird erfindungsgemäß im wesentlichen durch die Kennzeichnungsmerkmale des Patentanspruchs 1 gelöst. Zweckmäßige Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen.This object is achieved essentially by the characterizing features of claim 1. Appropriate developments of the invention can be found in the subclaims.

Die erfindungsgemäße Federwickelmaschine ermöglicht die vollautomatische, elektronisch gesteuerte Herstellung von Schraubendruckfedern, Schraubenzugfedern, Schenkelfedern und ähnlichen, wobei auch die Anzahl vorgegeben werden kann. Mit ihr können Federn mit einem Drahtdurchmesser bis zu 30mm kalt und bis zu 50mm warm gewickelt werden, und die fertigen Federn können in einem Behälter unterhalb der Maschine aufgefangen werden, weil alle Einrichtungen zum Wickeln der Federn seitlich am Maschinenbett geführt sind.The spring winding machine according to the invention enables the fully automatic, electronically controlled production of helical compression springs, helical tension springs, leg springs and the like, it also being possible to predefine the number. It can be used to wind springs with a wire diameter of up to 30mm cold and up to 50mm warm, and the finished springs can be collected in a container underneath the machine, because all the springs are wound on the side of the machine bed.

In der Zeichnung ist ein Ausführungsbeispiel der erfindungsgemäßen Maschine dargestellt. Dabei zeigt

  • Fig. 1 eine Seitenansicht und
  • Fig. 2 eine Ansicht in Längsrichtung der Maschine.
In the drawing, an embodiment of the machine according to the invention is shown. It shows
  • Fig. 1 is a side view and
  • Fig. 2 is a view in the longitudinal direction of the machine.

Ein Maschinenbett (1) ist seitlich an einem Maschinenrahmen (2) angebracht und bildet eine Gleitführung für zwei Schlitten (3) und (4), die über Dornzugzylinder (5) relativ zueinander verschiebbar, aber beim Wickeln einer Feder gemeinsam entsprechend dem Federwickelgang durch eine im Maschinenbett (1) befindliche Spindel (nicht dargestellt) verschoben werden. Der Antriebsmotor für die Spindel ist bei (6) angedeutet. Ein langer Dorn (7) ist am einen Ende im Schlitten (4) drehbar befestigt und wird durch einen Konus (8) am anderen Ende in einem Mitnehmer (9) zentriert, der durch einen Antrieb (10) am Schlitten (3) gedreht wird, um das Ende einer Drahtzufuhr (11) bei gleichzeitigem Vorschub der Schlitten (3,4) um den Dorn (7) zu wickeln, bis die vorgewählte Windungszahl einer Feder gewickelt ist. Beim Wickeln der Feder dreht sich der Dorn (7) zwangsläufig mit. Er kann durch zwei untere Stützlünetten (12) und eine obere Stützlünette (13) abgestützt werden, die entsprechend dem Druckmesser des Dorns (7) einstellbar sind. Bei rechtsgewickelten Federn wird die obere Stützlünette (13) in der Regel nicht gebraucht; sie wird unter Umständen bei linksgewickelten Federn zum Einsatz gebracht.A machine bed (1) is attached to the side of a machine frame (2) and forms a sliding guide for two carriages (3) and (4), which can be moved relative to one another via mandrel pull cylinders (5), but when winding a spring together according to the spring winding path through a spindle (not shown) located in the machine bed (1) can be moved. The drive motor for the spindle is indicated at (6). A long mandrel (7) is rotatably attached at one end in the carriage (4) and is centered by a cone (8) at the other end in a driver (9) which is rotated on the carriage (3) by a drive (10) to wind the end of a wire feed (11) with simultaneous advance of the carriage (3, 4) around the mandrel (7) until the preselected number of turns of a spring is wound. When winding the spring, the mandrel (7) inevitably rotates. It can be supported by two lower support bezels (12) and an upper support bezel (13), which can be adjusted according to the pressure gauge of the mandrel (7). The upper support bezel (13) is generally not used for right-handed springs; it may be used with left-handed springs.

Nach dem Wickeln einer Feder, für die der Draht (11) über Einführrollen (14) mit Rücklaufsperre zugeführt wird, dreht sich der Mitnehmer (9) etwas zurück, so daß die Feder entspannt wird und ihren Reibungsschluß mit dem Dorn (7) verliert. Durch programmgesteuerte Betätigung der Dornzugzylinder (5) werden die Schlitten (3,4) auseinandergefahren, so daß der Dorn (7) aus der Feder herausgezogen wird, die dann noch an der Drahtzufuhr (11) in den Einführrollen (14) sitzt. Diese sind an einer supportähnlichen Verstelleinrichtung (15) am Maschinenrahmen (2) in der Höhe und senkrecht zur Achse des Dorns (7) verstellbar. Außerdem sind die Einführrollen (14) um eine senkrechte Achse schwenkbar gelagert, so daß sie sich auf die Steigung der Federwindungen einstellen können. In dieser Stellung können sie dann durch einen Stellzylinder (16) festgestellt werden.After winding a spring, for which the wire (11) is fed via feed rollers (14) with a backstop, the driver (9) rotates back a little so that the spring is relaxed and loses its frictional engagement with the mandrel (7). The slides (3, 4) are moved apart by program-controlled actuation of the mandrel pull cylinders (5), so that the mandrel (7) is pulled out of the spring, which is then still seated on the wire feeder (11) in the insertion rollers (14). These are on a support-like adjustment device (15) on the machine frame (2) in height and perpendicular to the axis of the Dorns (7) adjustable. In addition, the insertion rollers (14) are pivotally mounted about a vertical axis so that they can adjust to the pitch of the spring turns. In this position, they can then be determined by an actuating cylinder (16).

An der Verstelleinrichtung (15) ist eine Schere (17) (siehe Fig. 2) schwenkbar gelagert. Diese Schere (17) wird an die gewickelte Feder bzw. die Drahtzufuhr (11) herangeschwenkt und schneidet die Feder von der Drahtzufuhr (11) ab. Die fertige Feder kann dann in einen Behälter (nicht dargestellt) unter der Maschine fallen, da das Maschinenbett (1) seitlich angeordnet ist.                                         A pair of scissors (17) (see FIG. 2) is pivotably mounted on the adjusting device (15). These scissors (17) are pivoted towards the wound spring or the wire feed (11) and cut the spring off the wire feed (11). The finished spring can then fall into a container (not shown) under the machine, since the machine bed (1) is arranged on the side.

Die Drahtzufuhr (11) erfolgt von einer Haspel (18), wobei zwei solcher Haspeln (18) an einem auf einer Säule (19) drehbar gelagerten zweiarmigen Träger (20) angebracht sind, und zwar so, daß sich die eine Haspel (18) in Arbeitsstellung und die andere in Warte- bzw. Beschickungsstellung befindet.The wire feed (11) takes place from a reel (18), two such reels (18) being attached to a two-arm support (20) rotatably mounted on a column (19), in such a way that the one reel (18) is in the working position and the other is in the waiting or loading position.

Die Dornzugzylinder (5) sind in Konsolen (21) eingespannt und werden zusätzlich durch Verbindungslaschen (22) gehalten. The mandrel pull cylinders (5) are clamped in brackets (21) and are additionally held by connecting straps (22).

Claims (6)

1. Maschine zum Wickeln von Federn mit einem Mitnehmer für das Federdrahtende und einem drehbaren Dorn sowie mit einem Vorschubantrieb, dadurch gekennzeichnet, daß der Dorn (7) zwischen zwei relativ zueinander, aber beim Wickelvorschub gemeinsam an einem seitlich angeordneten Maschinenbett (1) bewegbaren Schlitten (3,4) einspannbar ist.1. Machine for winding springs with a driver for the spring wire end and a rotatable mandrel and with a feed drive, characterized in that the mandrel (7) between two relative to each other, but when winding feed together on a laterally arranged machine bed (1) movable carriage (3,4) can be clamped. 2. Maschine nach Anspruch 1, dadurch gekennzeichnet, daß der Drehantrieb (10) für den Mitnehmer (9) am einen (3) der beiden Schlitten (3,4) angebracht ist, daß der Dorn (7) im anderen (4) der beiden Schlitten (3,4) drehbar gelagert und im Mitnehmer (9) durch Konus (8) zentriert ist.2. Machine according to claim 1, characterized in that the rotary drive (10) for the driver (9) on one (3) of the two slides (3, 4) is attached in that the mandrel (7) in the other (4) of the two carriages (3, 4) are rotatably supported and centered in the driver (9) by cone (8). 3. Maschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß an einer Verstelleinrichtung (15) entsprechend der Wickelsteigung der Feder schwenkbare und mit einem Stellzylinder (16) feststellbare Draht-Einführrollen (14) sowie eine einschwenkbare Schere (17) zum Abschneiden der gewickelten Feder von der Drahtzufuhr (11) angeordnet sind.3. Machine according to claim 1 or 2, characterized in that on an adjusting device (15) according to the winding pitch of the spring pivotable and with an actuating cylinder (16) lockable wire insertion rollers (14) and a pivotable scissors (17) for cutting the wound Spring from the wire feeder (11) are arranged. 4. Maschine nach einem der Ansprüche 1 bis 3, gekennzeichnet durch zwei Drahthaspeln (18) an einem zweiarmigen Träger (20), der auf einer ortsfest am Maschinenrahmen (2) sitzenden Säule (19) zwischen einer Arbeitsstellung und einer Materialauswechslungsstellung schwenkbar gelagert ist.4. Machine according to one of claims 1 to 3, characterized by two wire reels (18) on a two-armed carrier (20) which is pivotally mounted on a stationary on the machine frame (2) column (19) between a working position and a material exchange position. 5. Maschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß für den fest am Maschinenrahmen (2) befindlichen Vorschubantrieb (6) eine Kugelumlaufspindel vorgesehen ist, die in einer Spindelmutter des Antriebsschlittens (3) sitzt.5. Machine according to one of claims 1 to 4, characterized in that for the fixed to the machine frame (2) feed drive (6) a ball screw is provided, which is seated in a spindle nut of the drive carriage (3). 6. Maschine nach einem der Ansprüche 1 bis 5, gekennzeichnet durch drei wahlweise an- und einstellbare Stützlünetten (12,13) für den Dorn (7).6. Machine according to one of claims 1 to 5, characterized by three optionally adjustable and adjustable support bezels (12, 13) for the mandrel (7).
EP87103047A 1986-07-09 1987-03-04 Machine for winding springs Expired - Lifetime EP0252211B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87103047T ATE68730T1 (en) 1986-07-09 1987-03-04 MACHINE FOR WINDING SPRINGS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863623079 DE3623079A1 (en) 1986-07-09 1986-07-09 SPRING WINDING MACHINE
DE3623079 1986-07-09

Publications (3)

Publication Number Publication Date
EP0252211A2 true EP0252211A2 (en) 1988-01-13
EP0252211A3 EP0252211A3 (en) 1988-03-30
EP0252211B1 EP0252211B1 (en) 1991-10-23

Family

ID=6304749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103047A Expired - Lifetime EP0252211B1 (en) 1986-07-09 1987-03-04 Machine for winding springs

Country Status (5)

Country Link
EP (1) EP0252211B1 (en)
AT (1) ATE68730T1 (en)
DE (2) DE3623079A1 (en)
ES (1) ES2025076B3 (en)
GR (1) GR3003606T3 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5934964A (en) * 1994-02-28 1999-08-10 Saes Getters S.P.A. Field emitter flat display containing a getter and process for obtaining it
GB2343857A (en) * 1998-11-20 2000-05-24 Bray Precision Tooling Company Spring manufacture
WO2015114360A1 (en) * 2014-01-30 2015-08-06 Harrison Spinks Components Limited Coiling apparatus and method
CN106424459A (en) * 2016-12-27 2017-02-22 无锡明珠钢球有限公司 Positioning mechanism of wire winding machine
US10808786B2 (en) 2011-10-11 2020-10-20 Harrison Spinks Components Limited Hybrid spring
US11305941B2 (en) 2017-05-31 2022-04-19 HS Products Limited Transportation apparatus and method
US11412860B2 (en) 2017-05-31 2022-08-16 HS Products Limited Pocketed spring unit and method of manufacture
US11800937B2 (en) 2012-08-10 2023-10-31 Harrison Spinks Components Limited Resilient unit with different major surfaces

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19611661C2 (en) * 1996-03-25 1998-09-10 Wafios Maschinen Wagner Device for forming wire, in particular universal spring coiling machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2959372A (en) * 1955-08-01 1960-11-08 Geo Stevens Mfg Company Winding machine
US3000427A (en) * 1958-08-08 1961-09-19 Gogan Joseph Machine for producing helically coiled articles
DE1993530U (en) * 1968-05-25 1968-09-12 Proll & Lohmann DEVICE FOR COIL SPRINGS.
GB1238409A (en) * 1969-07-10 1971-07-07

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1752891C3 (en) * 1968-07-31 1975-02-27 Hoesch Werke Ag, 4600 Dortmund Coiling machine for coil springs
JPS55112434A (en) * 1979-02-19 1980-08-30 Itaya Seisakusho:Kk Coil spring manufacturing device
JPS61137636A (en) * 1984-12-11 1986-06-25 Itaya Seisakusho:Kk Apparatus for manufacturing torsional spring

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2959372A (en) * 1955-08-01 1960-11-08 Geo Stevens Mfg Company Winding machine
US3000427A (en) * 1958-08-08 1961-09-19 Gogan Joseph Machine for producing helically coiled articles
DE1993530U (en) * 1968-05-25 1968-09-12 Proll & Lohmann DEVICE FOR COIL SPRINGS.
GB1238409A (en) * 1969-07-10 1971-07-07

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5934964A (en) * 1994-02-28 1999-08-10 Saes Getters S.P.A. Field emitter flat display containing a getter and process for obtaining it
GB2343857A (en) * 1998-11-20 2000-05-24 Bray Precision Tooling Company Spring manufacture
US10808786B2 (en) 2011-10-11 2020-10-20 Harrison Spinks Components Limited Hybrid spring
US11800937B2 (en) 2012-08-10 2023-10-31 Harrison Spinks Components Limited Resilient unit with different major surfaces
WO2015114360A1 (en) * 2014-01-30 2015-08-06 Harrison Spinks Components Limited Coiling apparatus and method
CN106163692A (en) * 2014-01-30 2016-11-23 哈里森斯平克斯部件有限公司 Coiler device and method
GB2524376B (en) * 2014-01-30 2020-12-02 Hs Products Ltd Coiling apparatus and method
CN106424459A (en) * 2016-12-27 2017-02-22 无锡明珠钢球有限公司 Positioning mechanism of wire winding machine
US11305941B2 (en) 2017-05-31 2022-04-19 HS Products Limited Transportation apparatus and method
US11412860B2 (en) 2017-05-31 2022-08-16 HS Products Limited Pocketed spring unit and method of manufacture

Also Published As

Publication number Publication date
EP0252211A3 (en) 1988-03-30
DE3623079A1 (en) 1988-02-04
DE3623079C2 (en) 1990-08-09
GR3003606T3 (en) 1993-03-16
ATE68730T1 (en) 1991-11-15
DE3774010D1 (en) 1991-11-28
EP0252211B1 (en) 1991-10-23
ES2025076B3 (en) 1992-03-16

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