EP0391114B1 - Maschine zum Ausstanzen und Verformen von Butterflyklammern aus Bandstahl - Google Patents

Maschine zum Ausstanzen und Verformen von Butterflyklammern aus Bandstahl Download PDF

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Publication number
EP0391114B1
EP0391114B1 EP90105061A EP90105061A EP0391114B1 EP 0391114 B1 EP0391114 B1 EP 0391114B1 EP 90105061 A EP90105061 A EP 90105061A EP 90105061 A EP90105061 A EP 90105061A EP 0391114 B1 EP0391114 B1 EP 0391114B1
Authority
EP
European Patent Office
Prior art keywords
punching
punching blade
butterfly
strip steel
bending
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
EP90105061A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0391114A1 (de
Inventor
Hans Knöpfel
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.)
Spuehl AG
Original Assignee
Spuehl 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 Spuehl AG filed Critical Spuehl AG
Publication of EP0391114A1 publication Critical patent/EP0391114A1/de
Application granted granted Critical
Publication of EP0391114B1 publication Critical patent/EP0391114B1/de
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
    • 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
    • B21D53/36—Making other particular articles clips, clamps, or like fastening or attaching devices, e.g. for electric installation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F33/00—Tools or devices specially designed for handling or processing wire fabrics or the like
    • B21F33/02—Mounting of wire network on frames
    • B21F33/025—Mounting of mattress innersprings on borderframes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5116—Plural diverse manufacturing apparatus including means for metal shaping or assembling forging and bending, cutting or punching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5147—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool
    • Y10T29/5148—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool including severing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5191—Assembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5198—Continuous strip
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53313—Means to interrelatedly feed plural work parts from plural sources without manual intervention
    • Y10T29/53383—Means to interrelatedly feed plural work parts from plural sources without manual intervention and means to fasten work parts together
    • Y10T29/53387—Means to interrelatedly feed plural work parts from plural sources without manual intervention and means to fasten work parts together by deforming
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53996—Means to assemble or disassemble by deforming

Definitions

  • the invention relates to a machine for punching and deforming butterfly clips from steel strip, according to the preamble of claim 1.
  • a machine oil known from DE-A-1060 828.
  • So-called butterfly clips are used to connect the outer edge of a spring core and the edge springs located there with a surrounding frame.
  • the invention for punching out and deforming butterfly steel mallets from strip steel avoids these disadvantages. It is based on the task of proposing a machine in which the butterfly clips can be punched out of the steel strip as well as securely connected with the fastening means of the spring core.
  • the invention is characterized in that the profiled working bending surface of the first punching knife (9) has a cutting curve (12) with a cutting edge (30) in the form of a trapezoid and lateral cutting edges for reaching under and bending the punched-out tabs (20, 31) of the butterfly clip (19), that the second punching knife is a nose (8) with a trapezoidal cutting edge (30) and horizontal cutting edges (40), and that a hold-down device (13.) That can be set and locked with the first punching knife (9) ) is provided.
  • the essence of the invention is therefore the combination of a punching tool with a bending tool in one and the same machine in such a way that in this machine both the butterfly clips are punched out of the strip steel and also bent at the same time, i.e. be connected to parts of the spring core or the spring core frame.
  • the work table can be fixed to the frame.
  • the fastening means are designed as a round spring wire, combined with a spring frame with a flat profile, the work table can preferably be raised and lowered.
  • a punch knife guide 10 is arranged on a machine stand 27, as well as a pre-bender 4, which is firmly connected to the machine stand 27.
  • a work piece or a center piece 5 is arranged on the pre-bender 4, the two parts 4, 5 formed between them forming a gap 6 into which the steel strip 1 is pushed in the direction of the arrow 3.
  • the feed takes place via a guide part 2, the strip steel being advanced by a clamp length 37 (see FIG. 3).
  • the definition of the clip length 37 namely from the tip of the flap 23 in FIG. 3 to the bottom of the recess 24 in FIG. 3, also shows that you gain a substantial material saving if you punch a clip 19 according to Figure 3 from the steel strip 1 directly.
  • a bending surface 7 is arranged, at the upper end of which a surface 16 is arranged.
  • this bending surface 7 is to pre-bend the clamp 19 to be processed later, as is shown in dash-dot lines with the radius in FIG. 1.
  • the tool In the position shown in Figure 1, the tool is in the starting position, i.e. before making the die cut.
  • a punching knife 9 is slidably mounted in the direction of arrow 11 and in the opposite direction.
  • a hold-down device 13 is firmly connected to the punching knife 10 by means of a screw connection, and - as will be explained later - the hold-down device 13 can be vertically adjusted and locked in the direction of the arrows 15.
  • the punch knife 9 and the hold-down device 13 are driven via a drive plunger 17 which engages in a recess 18 in the punch knife 9, the drive plunger 17 being driven and pivoted about the pivot point 36 by means of an articulated lever (not shown).
  • a cutting curve 12 is provided, which has the shape of a trapezoid, namely the shape of the recess 24 in the bracket 19, as shown in FIG. 3.
  • the tool now performs a punch cut by moving the punch knife 9 in the direction of the arrow 11 and punching out the tabs 20, 21 lying opposite one another in connection with the recess 24 arranged therebetween.
  • a fixed nose 8 is arranged in the area of the center piece 5, which corresponds exactly to the shape of the recess 24. So there is no band steel waste, because what is punched out of this band steel in the area of the nose is the tab 23 of the following bracket.
  • the holding-down device 13 is arranged above the punching knife, the lower edge 29 of the clamp 19 in the brings it into the correct position and prevents the clip from escaping upwards, so that it is bent over the parts 25, 26, as shown in FIG.
  • Horizontal cut edges 40 adjoin the side of this trapezoidal cut edge 30, which make the cut 38 on the tabs 20, 21. These cut edges 40 serve, as described above, to reach under and bend these tabs 20, 21.
  • Figure 4 shows the end of the machining cycle, i.e. the punching knife 9 has moved in the direction of the bending piece 14 and has also slightly taken the clamp 19 and the two parts 25, 26 to be connected in the direction of the arrow 11.
  • the clamp is non-positive and positive the two parts 25,26 connects with each other and by engaging the tab 23 in the associated recess 24, an excellent connection secured against slipping is hereby created.
  • FIGS. 5-7 show a further embodiment of a punching and bending tool, the same reference numerals being used for all parts. There is therefore identity between the parts compared to FIGS. 1-4 with the exception of the following features:
  • both the punch knife 9 and the bending piece 14 are modified.
  • a recess 33 is provided in the area of the punching knife 9, which corresponds to an assigned recess 32 in the bending piece 14.
  • the flat frame 31 here lies on a table 34 which can be raised and lowered, the table 34 being able to be raised and lowered again in the direction of the arrow 35.
  • the lifting and depositing is carried out in such a way that the table 34 is pivotably mounted on the machine housing via a corresponding drive.
  • the bracket has its position as shown in Figure 5.
  • the punching knife 9 thus remains at the same level with its recess 33, only the flat frame 31 is lifted together with the spring wire 26 lying thereon in connection with the table 34, the bending piece 14 remaining fixed to the frame, i.e. is not raised.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Wire Processing (AREA)
  • Clamps And Clips (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Punching Or Piercing (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Basic Packing Technique (AREA)
  • Shearing Machines (AREA)
EP90105061A 1989-04-05 1990-03-17 Maschine zum Ausstanzen und Verformen von Butterflyklammern aus Bandstahl Expired - Lifetime EP0391114B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3910939A DE3910939A1 (de) 1989-04-05 1989-04-05 Maschine zum ausstanzen von butterflyklammern zur befestigung an einem rahmen eines federkerns
DE3910939 1989-04-05

Publications (2)

Publication Number Publication Date
EP0391114A1 EP0391114A1 (de) 1990-10-10
EP0391114B1 true EP0391114B1 (de) 1993-01-27

Family

ID=6377873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90105061A Expired - Lifetime EP0391114B1 (de) 1989-04-05 1990-03-17 Maschine zum Ausstanzen und Verformen von Butterflyklammern aus Bandstahl

Country Status (10)

Country Link
US (1) US5042124A (enrdf_load_stackoverflow)
EP (1) EP0391114B1 (enrdf_load_stackoverflow)
JP (1) JPH0771711B2 (enrdf_load_stackoverflow)
AT (1) ATE84995T1 (enrdf_load_stackoverflow)
AU (1) AU621213B2 (enrdf_load_stackoverflow)
CA (1) CA2013634C (enrdf_load_stackoverflow)
DE (2) DE3910939A1 (enrdf_load_stackoverflow)
DK (1) DK0391114T3 (enrdf_load_stackoverflow)
ES (1) ES2038854T3 (enrdf_load_stackoverflow)
MX (1) MX174252B (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0549513T3 (da) * 1991-12-12 1996-07-08 Betere Fab Lucia Antonio Heftemaskine for fjederstelrammer
ES2080631B1 (es) * 1991-12-12 1996-08-01 Betere Fab Lucia Antonio Cabeza de engrapado para maquinas grapadoras de marcos de carcasas de muelles.
US6155310A (en) * 1998-09-11 2000-12-05 Sealy Technology Llc Machinery for automated manufacture of formed wire innerspring assemblies
US6694585B2 (en) 2002-05-16 2004-02-24 L&P Property Management Company Apparatus and method for securing end turns of coil springs to a border wire
CN102476151A (zh) * 2010-11-25 2012-05-30 中铁十八局集团有限公司 一种蝶形筋的加工工艺
CN104492911A (zh) * 2014-10-16 2015-04-08 上海众大汽车配件有限公司 一种汽车固定支架总成零件分离模具
CN111215514B (zh) * 2020-01-15 2021-08-24 江苏一诺钢结构工程有限公司 一种钢结构制作用型钢的加工处理方法
CN111545666B (zh) * 2020-05-18 2022-02-08 苏州兆能精密弹簧五金有限公司 一种弹片加工设备及其加工方法
CN112025311A (zh) * 2020-08-20 2020-12-04 王永平 一种农机刀片自动加工设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE689463C (de) * 1937-08-18 1940-03-21 Epeda Werke Rudolf Platte Verfahren und Vorrichtung zum Anklammern der Windungen von Sprungfedern einer Federeinlage fuer Matratzen, Polstermoebel o. dgl. an ihrem Halterahmen
US2537817A (en) * 1948-12-20 1951-01-09 Charles C Edwards Machine for applying clips to springs or the like
US2738747A (en) * 1950-06-17 1956-03-20 George W Derrick Band forming and applying apparatus
CH319667A (de) * 1953-03-26 1957-02-28 Hillemanns Willi Maschine zum Verklammern von Federn
DE965313C (de) * 1953-03-27 1957-06-06 Willi Hillemanns Maschine zum Klammern von Federn, Federeinlagen und Stahlbaendern, bei der durch eine Vertikalbewegung des Klammerkopfes ein Stueck Klammerbandeisen od. dgl. abgeschnitten, um die zu verklammernden Teile vorgebogen und durch eine Schliessbewegung des Klammerkopfes geschlossen wird
DE1060828B (de) * 1957-08-20 1959-07-09 Spuehl Ag Maschine zum Verbinden zweier Werkstuecke mittels einer Klammer
DE1452558A1 (de) * 1962-04-10 1969-04-03 Basf Ag Verfahren und Vorrichtung zur Herstellung von Ringen aus Bandeisen
US4189523A (en) * 1978-05-11 1980-02-19 Hartco Company Sheet metal fastener assembly and method of forming the same

Also Published As

Publication number Publication date
DE59000802D1 (de) 1993-03-11
MX174252B (es) 1994-05-02
US5042124A (en) 1991-08-27
EP0391114A1 (de) 1990-10-10
JPH0771711B2 (ja) 1995-08-02
ES2038854T3 (es) 1993-08-01
CA2013634A1 (en) 1990-10-05
JPH02290639A (ja) 1990-11-30
DE3910939A1 (de) 1990-10-11
DE3910939C2 (enrdf_load_stackoverflow) 1991-09-26
DK0391114T3 (da) 1993-05-17
ATE84995T1 (de) 1993-02-15
CA2013634C (en) 1994-11-22
AU5252690A (en) 1990-10-11
AU621213B2 (en) 1992-03-05

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