EP0549520B1 - Richtbacken für eine Richtvorrichtung zum Geraderichten von Draht - Google Patents

Richtbacken für eine Richtvorrichtung zum Geraderichten von Draht Download PDF

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Publication number
EP0549520B1
EP0549520B1 EP92810889A EP92810889A EP0549520B1 EP 0549520 B1 EP0549520 B1 EP 0549520B1 EP 92810889 A EP92810889 A EP 92810889A EP 92810889 A EP92810889 A EP 92810889A EP 0549520 B1 EP0549520 B1 EP 0549520B1
Authority
EP
European Patent Office
Prior art keywords
straightening
insert
chuck
jaws
accordance
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
EP92810889A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0549520A1 (de
Inventor
Stephan Wirth
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.)
Pantex Stahl AG
Original Assignee
Pantex-Stahl AG
Pantex Stahl 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 Pantex-Stahl AG, Pantex Stahl AG filed Critical Pantex-Stahl AG
Publication of EP0549520A1 publication Critical patent/EP0549520A1/de
Application granted granted Critical
Publication of EP0549520B1 publication Critical patent/EP0549520B1/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
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
    • B21D3/06—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged inclined to a revolving flier rolling frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/02—Straightening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/02—Straightening
    • B21F1/023—Straightening in a device rotating about the wire axis

Definitions

  • Known straightening devices for straightening wire have a plurality of interchangeable straightening jaws as wear parts, via which the wire is drawn off.
  • the straightening jaws are made of different materials.
  • straightening jaws made of gray cast iron are used for reinforcing steels.
  • these wear out relatively quickly, especially if the wire to be dressed has an outwardly protruding profile. This results in short service life of the straightening jaws.
  • the present invention has for its object to design straightening jaws of the type mentioned in such a way that they enable a straightening device to be operated cost-effectively. This object is achieved by the combination of features of claims 1 and 7.
  • FIG. 1 and 2 show the process of straightening a wire 1 in a rotating straightening body 2.
  • Five pairs of straightening jaws 3 cause the continuous wire 1 to be bent in a wave-like manner according to FIG. This removes the tension in the wire and the wire leaves the straightening device in a straight form and we are then cut to length.
  • FIGS. 3 and 4 A straightening jaw 3 according to the invention is shown in FIGS. 3 and 4.
  • An approximately cuboidal chuck 31 is provided on a front side 36 with a longitudinal directional groove 32.
  • an inlet part 33 and an outlet part 34 are formed from the groove 32.
  • the inlet and outlet parts are preferably identical, symmetrical to the central plane, deviating from the illustration in FIG. 4.
  • the inlet part 33 and the outlet part 34 each have a base inclined towards the end face 36. They converge against each other.
  • the chuck 31 has on both sides a bulge 37 bulging like a cylinder segment, similar to a cylinder 40 penetrating the chuck 31, the axis of which is perpendicular to the end face 36.
  • This cylinder 40 has a central bore 41, the axis of which is also perpendicular to the upper end face 36 and into which a straightening insert 50 is inserted.
  • the straightening insert 50 has a saddle shape at the upper end Straightening boss 35, which connects the inlet part 33 and the outlet part 34 to one another and forms the groove 32 together with these.
  • the bore 41 opens into a concentric countersink 42 which has a stop surface 43 at at least one point.
  • the straightening insert 50 is cylindrical.
  • the straightening insert 50 has a concentric flange 51 which has stop surfaces 52 which match the stop surfaces 43 of the countersink 42. The straightening insert 5 thus remains aligned in the bore 41.
  • the set screws 11 in the straightening body 2 determine the position of the straightening jaw pairs 3 and thus press against the side of the chuck 31 in which the recess 42 and the flange 51 are located.
  • the straightening insert 50 thus does not have to be soldered in. It can be easily replaced if a wire with a different diameter has to be machined or a worn straightening insert has to be replaced.
  • the feed 31 can therefore be used repeatedly.
  • the straightening jaws 3 can have a flat base surface 38 opposite the end face 36 or it can be provided with lugs 39, as the illustration of the straightening jaws 3 in FIG. 1 shows. These lugs 39 protect the screws 11 in the event of a wire break.
  • the material of the straightening insert 50 depends on the intended use.
  • the straightening insert 50 advantageously consists of hard metal.
  • the lining 11 preferably consists of gray cast iron. Both chuck 11 and straightening insert 50 can be produced inexpensively. Due to the easy interchangeability, the downtimes of the straightening device are also kept to a minimum.
  • the embodiment 5 - 7 differs from that of FIGS. 3 and 4 mainly in that the flange 51 is omitted on the straightening insert 50.
  • the straightening insert 50 is cylindrical over its entire height. It has an oval cross-section to prevent rotation (Fig. 7). Accordingly, the opening 41 is oval.
  • the straightening insert 50 can have ample play of up to several millimeters in the opening 41.
  • the opening 41 has a shoulder 44 at the top of the straightening groove 32 against which flat end faces 53 of the straightening insert 50 rest.
  • the opening 41 is closed at the bottom by a cover 60 which is fitted with a e.g. circular cylindrical pin 61 is centered in the opening 41 and abuts with a flange 62 on the lower end face 38 of the chuck 31.
  • the lid 60 is e.g. held by a bracket 63 made of spring steel. This can be inserted in a groove 64 of the cover 60 and snaps on top with hooks 65 in grooves 66 in the thickenings 37 of the lining 31.
  • the straightening insert 50 can be produced particularly inexpensively.
  • the feed 31 can be reused several times.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Nonmetallic Welding Materials (AREA)
EP92810889A 1991-11-29 1992-11-16 Richtbacken für eine Richtvorrichtung zum Geraderichten von Draht Expired - Lifetime EP0549520B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH350791 1991-11-29
CH3507/91 1991-11-29

Publications (2)

Publication Number Publication Date
EP0549520A1 EP0549520A1 (de) 1993-06-30
EP0549520B1 true EP0549520B1 (de) 1996-07-03

Family

ID=4257481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810889A Expired - Lifetime EP0549520B1 (de) 1991-11-29 1992-11-16 Richtbacken für eine Richtvorrichtung zum Geraderichten von Draht

Country Status (7)

Country Link
US (1) US5327757A (es)
EP (1) EP0549520B1 (es)
AT (1) ATE139917T1 (es)
DE (1) DE59206702D1 (es)
DK (1) DK0549520T3 (es)
ES (1) ES2090575T3 (es)
GR (1) GR3020462T3 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994005439A1 (en) * 1992-09-03 1994-03-17 Neumann Steel Pty. Ltd. Adjustable re-usable ceramic inserts
ES2102794T3 (es) * 1993-03-25 1997-08-01 Schlatter Ag Procedimiento para el enderezamiento intermitente de alambre.
US5564299A (en) * 1994-06-13 1996-10-15 Rockford Manufacturing Group, Inc. Wire straightening apparatus with long-life dies
JP3962085B1 (ja) * 2005-10-20 2007-08-22 協栄線材株式会社 ケーブルハンガ製造装置および製造方法
CN106077282B (zh) * 2016-06-02 2018-07-13 温州职业技术学院 一种c100拨叉整形模组

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE155490C (es) *
DE349328C (de) * 1919-05-15 1922-03-01 Glauer & Co Vorrichtung zum Richten von profiliertem Stabeisen
US1473256A (en) * 1921-01-25 1923-11-06 Elmore F Shuster Wire-straightening arbor
DE691174C (de) * 1938-07-09 1940-05-17 Schumag Schumacher Metallwerke Umlaufendes Drahtrichtgeraet
DE1427325A1 (de) * 1961-07-27 1968-12-12 Hufnagel Dipl Ing Walter Richtbacken fuer Richtmaschinen zum Richten von Draehten
US3335764A (en) * 1965-05-19 1967-08-15 Hugh A Pilling Apparatus for straightening wire
DE2449873A1 (de) * 1974-10-21 1976-04-29 Hufnagl Walter Richtmittel fuer richtkoerper bei drahtrichtmaschinen
US4177843A (en) * 1978-05-08 1979-12-11 Sarver Douglas R Wire straightener die
CH673605A5 (es) * 1987-10-01 1990-03-30 Schlatter Ag

Also Published As

Publication number Publication date
DE59206702D1 (de) 1996-08-08
DK0549520T3 (da) 1996-07-29
GR3020462T3 (en) 1996-10-31
US5327757A (en) 1994-07-12
EP0549520A1 (de) 1993-06-30
ES2090575T3 (es) 1996-10-16
ATE139917T1 (de) 1996-07-15

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