EP0252211B1 - Machine for winding springs - Google Patents

Machine for winding springs Download PDF

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Publication number
EP0252211B1
EP0252211B1 EP87103047A EP87103047A EP0252211B1 EP 0252211 B1 EP0252211 B1 EP 0252211B1 EP 87103047 A EP87103047 A EP 87103047A EP 87103047 A EP87103047 A EP 87103047A EP 0252211 B1 EP0252211 B1 EP 0252211B1
Authority
EP
European Patent Office
Prior art keywords
machine
mandrel
spring
wire
winding
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
Application number
EP87103047A
Other languages
German (de)
French (fr)
Other versions
EP0252211A3 (en
EP0252211A2 (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
Original Assignee
Thema-Federn & Co KG Industriefedern GmbH
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 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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    • 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 with a driver for the spring wire end, a mandrel and a feed drive, wherein the mandrel can be clamped between two carriages which can be moved relative to one another but together during the winding feed.
  • Spring winding machines which work program-controlled, are known in various designs, such as from DE-PS 29 24 603, DE-AS 17 52 891, DE-OS 35 39 730 and DE-GM 19 93 530. It is from these Writings not recognizable, however, that these known winding machines can also control springs with wire diameters up to 30 mm cold and up to 50 mm warm, although DE-GM 19 93 530 mentions the winding of a possibly heated rod. Furthermore, these known winding machines are apparently those in which the winding device is arranged above the machine bed, so that the wound springs cut from the rod or wire can fall into the machine bed.
  • the invention has for its object to provide a program-controlled, rationally working spring winding machine of the type mentioned, in which the finished springs can easily be collected in a predetermined number.
  • the spring winding machine not only enables the fully automatic, electronically controllable production of helical compression springs, coil tension springs, leg springs and similar springs, the number of which can also be specified, but also springs with a wire diameter of up to 30 mm cold and up to 50 mm warm are wound, and the finished springs can advantageously be collected in a container below the machine, because all the devices for winding the springs are guided laterally on the machine bed.
  • a machine bed (1) is attached to the side of a machine frame (2) and forms a sliding guide for two slides (3) and (4), which can be moved relative to each other via mandrel pull cylinders (5), but when a spring is wound together according to the spring winding path by 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) in order to wind the end of a wire feed (11) with simultaneous advance of the slides (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 diameter 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 pulling cylinders (5), so that the mandrel (7) is pulled out of the spring, which then sits 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 mit einem Mitnehmer für das Federdrahtende, einem Dorn sowie einem Vorschubantrieb, wobei der Dorn zwischen zwei relativ zueinander, aber beim Wickelvorschub gemeinsam bewegbaren Schlitten einspannbar ist.The invention relates to a machine for winding springs with a driver for the spring wire end, a mandrel and a feed drive, wherein the mandrel can be clamped between two carriages which can be moved relative to one another but together during the winding feed.

Eine Maschine dieser Gattung zum Warmwickeln sehr starker Federn mit großem Drahtdurchmesser ist aus der EP-A-0 136 554 bekannt. Diese Maschine ist trotz ihres großen konstruktiven Aufwandes nicht in der Lage, Federn vom Drahtcoil programmgesteuert rationell zu wickeln, da sie dafür nicht ausgelegt ist. Bei dieser bekannten Maschine wird die Feder am Einspannende des Dorns beginnend gewickelt, so daß zum Abnehmen der Feder der Dorn über seine gesamte Länge zurückgezogen werden muß.A machine of this type for warm winding very strong springs with a large wire diameter is known from EP-A-0 136 554. Despite its great design effort, this machine is unable to rationally wind springs from the wire coil under program control, since it is not designed for this. In this known machine, the spring is wound starting at the clamping end of the mandrel, so that the mandrel must be retracted over its entire length in order to remove the spring.

Federwickelmaschinen, die programmgesteuert arbeiten, sind zwar in vielfältigen Ausführungen bekannt, wie z.B. aus der DE-PS 29 24 603, DE-AS 17 52 891, DE-OS 35 39 730 und dem DE-GM 19 93 530. Es ist aus diesen Schriften jedoch nicht erkennbar, daß diese bekannten Wickelmaschinen computergesteuert auch Federn mit Drahtdurchmesser bis zu 30 mm kalt und bis zu 50 mm warm wickeln können, obwohl in dem DE-GM 19 93 530 das Wickeln eines gegebenenfalls erhitzten Stabes erwähnt ist. Ferner handelt es sich bei diesen bekannten Wickelmaschinen offenbar um solche, bei denen die Wickeleinrichtung über dem Maschinenbett angeordnet ist, so daß die gewickelten und vom Stab oder Draht abgeschnittenen Federn in das Maschinenbett hineinfallen können.Spring winding machines, which work program-controlled, are known in various designs, such as from DE-PS 29 24 603, DE-AS 17 52 891, DE-OS 35 39 730 and DE-GM 19 93 530. It is from these Writings not recognizable, however, that these known winding machines can also control springs with wire diameters up to 30 mm cold and up to 50 mm warm, although DE-GM 19 93 530 mentions the winding of a possibly heated rod. Furthermore, these known winding machines are apparently those in which the winding device is arranged above the machine bed, so that the wound springs cut from the rod or wire can fall into the machine bed.

Der Erfindung liegt die Aufgabe zugrunde, eine programmsteuerbare rationell arbeitende Federwickelmaschine der eingangs genannten Gattung zu schaffen, bei der die fertigen Federn in vorgegebener Anzahl leicht aufgefangen werden können.The invention has for its object to provide a program-controlled, rationally working spring winding machine of the type mentioned, in which the finished springs can easily be collected in a predetermined number.

Diese Aufgabe wird in Verbindung mit den Oberbegriffsmerkmalen erfindungsgemäß durch die Merkmale des kennzeichnenden Teils des Patentanspruches 1 gelöst. Zweckmäßige Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen.This object is achieved according to the invention in conjunction with the preamble features by the features of the characterizing part of patent claim 1. Appropriate developments of the invention can be found in the subclaims.

Die Erfindungsgemäße Federwickelmaschine ermöglicht nicht nur die vollautomatische, elektronisch steuerbare Herstellung von Schraubendruckfedern, Schraubenzugfedern, Schenkelfedern und ähnlichen Federn, wobei auch die Anzahl vorgegeben werden kann, sondern mit ihr können auch Federn mit einem Drahtdurchmesser bis zu 30 mm kalt und bis zu 50 mm warm gewickelt werden, und die fertigen Federn können in vorteilhafter Weise 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 not only enables the fully automatic, electronically controllable production of helical compression springs, coil tension springs, leg springs and similar springs, the number of which can also be specified, but also springs with a wire diameter of up to 30 mm cold and up to 50 mm warm are wound, and the finished springs can advantageously be collected in a container below the machine, because all the devices for winding the springs are guided laterally on 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
a side view and
Fig. 2
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 Durchmesser 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 slides (3) and (4), which can be moved relative to each other via mandrel pull cylinders (5), but when a spring is wound together according to the spring winding path by 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) in order to wind the end of a wire feed (11) with simultaneous advance of the slides (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 diameter 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 insertion 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 pulling cylinders (5), so that the mandrel (7) is pulled out of the spring, which then sits 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 (5)

  1. Machine for winding springs with a driver (9) for the end of the spring wire, a rotating drive, a mandrel (7) and an advancing drive (6), the mandrel (7) being clampable between two carriages (3, 4) movable relative to one another, but movable together during the winding advance, and which are slidably mounted on a machine bed (1), characterised in that the driver (9) is mounted on the rotating drive and centres the free end of the mandrel (7), the arrangement being such that the spring is wound from the free end of the mandrel (7) to a desired, program-controlled length with the wire supply (11) remaining stationary.
  2. Machine according to Claim 1, characterised in that wire lead-in rollers (14) swingable in accordance with the winding pitch of the spring and securable in position by a setting cylinder (16), as well as a cutter (17) which can be swung in for cutting the wound spring off from the supplied wire (11), are arranged on an adjusting device (15), and two wire rod reels (18) are provided on a two-armed carrier (20) rotatably mounted between a working position and a waiting or loading position on a column (19) fixedly mounted on the machine frame (2).
  3. Machine according to Claim 1 or 2, characterised in that a ball circulation spindle seated in a spindle nut of the carriage (3) comprising the rotating drive (10) for the driver (9) is provided for the advancing drive (6) located fixedly on the machine frame (2).
  4. Machine according to any one of claims 1 to 3, characterised by three selectively adjustable and settable supporting rests (12, 13) for the mandrel (7).
  5. Machine according to any one of claims 1 to 4, characterised in that the carriages (3, 4) are arranged sideways on the machine bed (1).
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
DE3623079 1986-07-09
DE19863623079 DE3623079A1 (en) 1986-07-09 1986-07-09 SPRING WINDING MACHINE

Publications (3)

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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1273349B (en) * 1994-02-28 1997-07-08 Getters Spa FIELD EMISSION FLAT DISPLAY CONTAINING A GETTER AND PROCEDURE FOR ITS OBTAINING
DE19611661C2 (en) * 1996-03-25 1998-09-10 Wafios Maschinen Wagner Device for forming wire, in particular universal spring coiling machine
GB2343857A (en) * 1998-11-20 2000-05-24 Bray Precision Tooling Company Spring manufacture
GB2495499B (en) 2011-10-11 2019-02-06 Hs Products Ltd Hybrid spring
GB2506104B (en) 2012-08-10 2018-12-12 Hs Products Ltd Resilient unit with different major surfaces
GB201401597D0 (en) * 2014-01-30 2014-03-19 Harrison Spinks Components 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
GB201708635D0 (en) 2017-05-31 2017-07-12 Hs Products Ltd Pocketed spring unit and method manufacture
GB201708639D0 (en) 2017-05-31 2017-07-12 Hs Products Ltd Transportation Apparatus and method

Family Cites Families (7)

* 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.
DE1752891C3 (en) * 1968-07-31 1975-02-27 Hoesch Werke Ag, 4600 Dortmund Coiling machine for coil springs
GB1238409A (en) * 1969-07-10 1971-07-07
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

Also Published As

Publication number Publication date
DE3623079A1 (en) 1988-02-04
GR3003606T3 (en) 1993-03-16
DE3774010D1 (en) 1991-11-28
EP0252211A3 (en) 1988-03-30
ATE68730T1 (en) 1991-11-15
ES2025076B3 (en) 1992-03-16
DE3623079C2 (en) 1990-08-09
EP0252211A2 (en) 1988-01-13

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