EP2520384A1 - Outil de treuil pour machines à enroulement de ressort - Google Patents

Outil de treuil pour machines à enroulement de ressort Download PDF

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Publication number
EP2520384A1
EP2520384A1 EP12002452A EP12002452A EP2520384A1 EP 2520384 A1 EP2520384 A1 EP 2520384A1 EP 12002452 A EP12002452 A EP 12002452A EP 12002452 A EP12002452 A EP 12002452A EP 2520384 A1 EP2520384 A1 EP 2520384A1
Authority
EP
European Patent Office
Prior art keywords
insert
receptacle
winch
winch insert
tool holder
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
EP12002452A
Other languages
German (de)
English (en)
Other versions
EP2520384B1 (fr
Inventor
Alexander JANNOTTI
Alf Schürmann
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.)
Wafios AG
Original Assignee
Wafios AG
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 Wafios AG filed Critical Wafios AG
Publication of EP2520384A1 publication Critical patent/EP2520384A1/fr
Application granted granted Critical
Publication of EP2520384B1 publication Critical patent/EP2520384B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F35/00—Making springs from wire

Definitions

  • the invention relates to a wind tool for spring coiling machines, comprising a tool holder having a recessed recess on one end, which forms a receptacle for a winch insert, which is open towards the end of the tool holder and in which the winch insert used and in her solvable can be fastened to the tool holder.
  • the invention is based on a Windewerkmaschine-arrangement, as used for spring winding machines or compression spring machines.
  • the wire is fed from a feeder against one or two wind fingers or wind pins and deflected by them on a circular path and formed in helical form.
  • Such wind tools can either be carried out in one piece by the tool holder and the wind insert is made in one piece, or even so that in the tool holder a winch insert is soldered.
  • the tool holder carries at one end a receiving groove with parallel side walls for holding a winch insert, wherein the groove towards the end of the tool holder is open and the winch insert with also parallel side surfaces whose width corresponds to the width of the groove in the groove each on the tool holder detachable by two in the longitudinal direction of the groove one behind the other arranged screws is attached.
  • This wind tool assembly is quite simple in construction.
  • the receptacle and the winch insert are designed such that they form a positive engagement with each other when the winch insert is inserted into the receptacle, which prevents the occurrence of a relative movement between the two parts and thus in the longitudinal direction at the wind loading at the front of the winch insert the receiving groove effective loads on this mutual positive engagement of the shapes of recording and use of wind of the latter are transmitted to the tool holder problem-free, without causing the otherwise otherwise still existing releasable attachment of the winch insert on the tool holder to accommodate such loads.
  • a trapezoidal shape for the recording would equally be used, in which case the shorter base line of the trapezoid forms the open towards the end of the tool holder point of the recording.
  • the section of the winch insert to be inserted into the receptacle would be designed in the same trapezoidal shape, whereby here at the point of the shorter baseline of the trapezoid the winch insert protrudes forward through the recess of the receptacle open outwards over the tool holder.
  • the positive engagement to block the relative movement between the wind insert and recording is characterized in that in an otherwise rectilinear groove-shaped formation of the recording on at least one side, but preferably at both, a special shape is provided which causes the desired blocking effect.
  • a special shape is provided which causes the desired blocking effect.
  • Such shapes on one or both side walls of the groove-shaped receptacle, which produce the desired blocking effect, are also familiar to the person skilled in the art on the basis of his specialist knowledge.
  • This can be z. B. thereby achieve that on one or both side walls of the recording locally over a certain longitudinal extent range of the same time away a Nutverumblerung or a groove narrowing is provided, in which case the inserted into the receptacle portion of the winch insert is provided with a complementary shape, so that at a local Nutverbreiterung the winch insert at the corresponding points on its sides complementary shaped lateral extensions which protrude into this Nutverbreiterung the recording and thus prevent a movement of the winch insert in the recording form-fitting.
  • a particularly advantageous embodiment of the invention is achieved in the aforementioned Windewerkmaschine that on both side walls of the recording, and mirror images of each other, each one towards the center of the groove directed towards curvature and formed on both sides of the winch insert correspondingly shaped concavities.
  • the receptacle is symmetrical to a central longitudinal plane of the groove and, again preferably, the shape of the winch insert is formed symmetrically to a longitudinal center plane and to a transverse center plane thereof.
  • a very advantageous and preferred embodiment of the invention can be realized, in addition to a very small footprint and the great advantage is achieved that can be used with a winch insert, in which at both axial end portions each have a working area (in shape a windrow), whereby each winch insert can be used in duplicate without the need for reworking.
  • the winch use z. B. worn at one end only the fixing screw is released, the winch insert taken out of the receptacle, rotated by 180 °, so that its previous rear end is to its front end, then inserted back into the receptacle and fastened with the screw.
  • This is an extremely fast change of the tool, and without loss of its exact positioning, possible, thereby saving considerable time and cost when changing, as this is very quickly going on and the machine is not reset every time.
  • the tool holder can be made very slim with the result that in the case of z.
  • two-finger wind system two such trained wind tools can be moved very tight laterally, so that thereby springs of a particularly large diameter range can be produced.
  • the Windewerkzeug invention enables a simple, compact and inexpensive construction and a quick tool change, without causing the axial position of the Windewerkmaschinees must be readjusted.
  • the structure of the tool according to the invention in a particular embodiment of the same wind insert can be used twice, by at its front and its rear end in each case a Winderille is attached.
  • the wind tool according to the invention is installed in use in the machine and set its axial position once. The position and position of the tool holder must then not be changed. In the event of wear, breakage or the like of the winch insert, only the releasable fastening, preferably a screw, is opened, the winch insert is rotated or replaced and then the fastening screw is tightened again.
  • the releasable attachment such as the fastening screw, fixes the tool holder only in the direction perpendicular to the longitudinal direction of the tool holder, while the lateral absorption of the forces takes place by the positive engagement windage recording.
  • Fig. 1 represents in an oblique perspective view quite basically the structure of a spring coiling machine 1, in which at the front of a machine frame 2, first (left) a wire feed 3 is provided, the z. B. three pairs of wire feed rollers 9 is formed, which promote an endless wire 4 a wire guide 5 and advance through this into a wind station 6.
  • a cutting unit 8 which comprises a movable cutting tool 11 which cooperates with a cutting mandrel 12 during the cutting operation.
  • Each winch unit 7a and 7b is equipped with a winching tool 10, which is respectively fixed to a lever 13a and 13b, wherein the levers 13a and 13b respectively by means of rollers 14a and 14b by a control cam 15a and 15b are moved.
  • Each of the cams 15a, 15b is driven by its own programmable servomotor. But it is also possible, the two cams 15a and 15b of only a CNC-controllable servo motor (not shown) programmatically drive. The drive of the cam 15a and 15b is intermittently both forward and backward rotating.
  • FIGS. 2 and 3 show the same wind tool 10 in an exploded view.
  • the Windewerkmaschine 10 comprises an elongated tool holder 20, which at its one, in the assembled state of the conveyed wire 4 end region facing a recess recessed on one side 21, which, as especially Fig. 3 shows well, designed as a form of groove receptacle 22 for a winch insert 23 is formed.
  • the recess 21 and in particular the receptacle 22 are open towards the front end of the tool holder 20, wherein in the case of a wind insert used in the receptacle 22 23 this protrudes through the open side of the receptacle 22 via the end of the tool holder 20 to the front.
  • the winch insert 23 is provided at its projecting end with a working area in the form of a winding groove 24.
  • the conveyed wire 4 runs when using this Windewerkmaschinees 10 against the Winderille 24 and is deflected by this on a circular path and formed into a helical shape.
  • front and rear respectively designate an indication in the direction of the open end of the receptacle 22 toward or away from it.
  • the side cheeks 26, 27 form in the longitudinal direction of the receptacle 22 lateral groove boundary walls 28, 29 ( Fig. 3 ), which in their rear portions, ie in their outgoing from the end wall 25 areas, initially parallel to each other, as the FIGS. 2 and 3 show in detail.
  • the groove width which in the region of the parallel course of the inner walls 28, 29 of the side cheeks 26, 27 has the size B (see. Fig. 2 ), narrowed to a value b , as is the representation of the Fig. 3 shows.
  • the shape of the winch insert 23 is further selected so that in the inserted state in the receptacle 22, where the protrusions 30, 31 on the side walls 26, 27 of the receptacle 22 are present, correspondingly complementary side indentations 32, 33 are provided on the winch insert 23, in which the bulges 30 and 31 of the side cheeks 26 and 27 engage positively with inserted winch insert 23.
  • the winch insert 23 is how Fig. 3 shows, both in the direction of the groove width, as well as in the longitudinal direction of the receptacle 22 where the bulges 30 and 31 of the side cheeks 26th and 27 are provided, relative to these centrally with a through hole 34 which there passes through the winch insert 23 over its entire height and whose central axis coincides with the intersection between the longitudinal center plane and the transverse center plane of the winch insert 23.
  • Fig. 3 shows, attached to the groove bottom, a corresponding threaded bore 35 into which inserted in the receptacle 22 Winde insert 23 can be screwed through the through hole 34 inserted mounting screw 36 for attaching the winch insert 23 on the tool holder 20.
  • the axial length of the receptacle 22 is selected so that when inserted into the receptacle 22 and fixed wind insert 23 a small distance a between the rear end and the end wall 25 of the receptacle 22 remains.
  • the shapes of the lateral bulges 30 and 31 on the side cheeks 26 and 27 of the receptacle 22 and the shape of the corresponding complementary indentations 32 and 33 on the winch insert 23 may well be formed in other than the shape shown in the figures, for. B. not in the form of a rounded, but a square cross-section.
  • FIGS. 2 and 3 clearly show how slim such a wind tool 10 can be executed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)
  • Winding Of Webs (AREA)
EP12002452.6A 2011-05-04 2012-04-04 Outil de treuil pour machines à enroulement de ressort Active EP2520384B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011100434.7A DE102011100434B4 (de) 2011-05-04 2011-05-04 Windewerkzeug für Federwindemaschinen

Publications (2)

Publication Number Publication Date
EP2520384A1 true EP2520384A1 (fr) 2012-11-07
EP2520384B1 EP2520384B1 (fr) 2017-06-07

Family

ID=45977110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12002452.6A Active EP2520384B1 (fr) 2011-05-04 2012-04-04 Outil de treuil pour machines à enroulement de ressort

Country Status (2)

Country Link
EP (1) EP2520384B1 (fr)
DE (1) DE102011100434B4 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104493015A (zh) * 2014-12-26 2015-04-08 福建永动力弹簧科技有限公司 卷簧机上的分体式弹簧卷绕和裁切模具
EP3225325A1 (fr) * 2016-03-31 2017-10-04 WAFIOS Aktiengesellschaft Outil de bobinage pour machines à enroulement de ressort
DE202019103268U1 (de) 2019-06-11 2019-07-03 Wth Laqua Gmbh Windewerkzeug für eine Federwindemaschine
JP6901645B1 (ja) * 2021-03-30 2021-07-14 旭精機工業株式会社 ばね成形機

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6471310B2 (ja) 2013-11-25 2019-02-20 ティーディーケイ・エレクトロニクス・アクチェンゲゼルシャフトＴｄｋ Ｅｌｅｃｔｒｏｎｉｃｓ Ａｇ 誘導性要素並びに誘導性要素用線材を巻回するための装置および方法
EP3698897B2 (fr) 2019-02-21 2023-12-27 WTH Laqua GmbH Outil d'enroulement pour une machine à enroulement de ressort
DE102019115772B4 (de) 2019-06-11 2023-09-28 Wth Laqua Gmbh Windewerkzeug für eine Federwindemaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0344178B1 (fr) 1987-01-16 1991-07-03 Gerhard Baisch Dispositif d'enroulement pour machine d'enroulement a ressort avec elements pre-reglables remplacables
US5201208A (en) * 1991-11-04 1993-04-13 Newcomb Spring Corporation Coiling point holder for spring coiling machine
DE19938855A1 (de) * 1998-08-21 2000-03-02 Itaya Seisaku Sho Tokio Tokyo Federherstellungsvorrichtung
US7055356B2 (en) 2003-07-22 2006-06-06 Shinko Machinery Co., Ltd. Wire rod cutting apparatus of spring manufacturing machine
US7082797B1 (en) * 2003-12-19 2006-08-01 Wiese Thomas R Coiling point tool for spring coiling machine, and method of using same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0344178B1 (fr) 1987-01-16 1991-07-03 Gerhard Baisch Dispositif d'enroulement pour machine d'enroulement a ressort avec elements pre-reglables remplacables
US5201208A (en) * 1991-11-04 1993-04-13 Newcomb Spring Corporation Coiling point holder for spring coiling machine
DE19938855A1 (de) * 1998-08-21 2000-03-02 Itaya Seisaku Sho Tokio Tokyo Federherstellungsvorrichtung
US7055356B2 (en) 2003-07-22 2006-06-06 Shinko Machinery Co., Ltd. Wire rod cutting apparatus of spring manufacturing machine
US7082797B1 (en) * 2003-12-19 2006-08-01 Wiese Thomas R Coiling point tool for spring coiling machine, and method of using same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104493015A (zh) * 2014-12-26 2015-04-08 福建永动力弹簧科技有限公司 卷簧机上的分体式弹簧卷绕和裁切模具
EP3225325A1 (fr) * 2016-03-31 2017-10-04 WAFIOS Aktiengesellschaft Outil de bobinage pour machines à enroulement de ressort
CN107262632A (zh) * 2016-03-31 2017-10-20 瓦菲欧斯公司 用于弹簧卷绕机的卷绕工具
DE202019103268U1 (de) 2019-06-11 2019-07-03 Wth Laqua Gmbh Windewerkzeug für eine Federwindemaschine
JP6901645B1 (ja) * 2021-03-30 2021-07-14 旭精機工業株式会社 ばね成形機

Also Published As

Publication number Publication date
EP2520384B1 (fr) 2017-06-07
DE102011100434A1 (de) 2012-11-08
DE102011100434B4 (de) 2014-11-20

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