WO2014161949A1 - Procédé pour la réalisation d'un corps façonné en fil, ainsi que corps façonné en fil - Google Patents

Procédé pour la réalisation d'un corps façonné en fil, ainsi que corps façonné en fil Download PDF

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Publication number
WO2014161949A1
WO2014161949A1 PCT/EP2014/056721 EP2014056721W WO2014161949A1 WO 2014161949 A1 WO2014161949 A1 WO 2014161949A1 EP 2014056721 W EP2014056721 W EP 2014056721W WO 2014161949 A1 WO2014161949 A1 WO 2014161949A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire
length
forming
forming device
cross
Prior art date
Application number
PCT/EP2014/056721
Other languages
German (de)
English (en)
Inventor
Robert Kopetzky
Original Assignee
Robert Kopetzky
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 Robert Kopetzky filed Critical Robert Kopetzky
Priority to EP14714744.1A priority Critical patent/EP2981372B1/fr
Publication of WO2014161949A1 publication Critical patent/WO2014161949A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K23/00—Making other articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
    • B21F27/18—Making special types or portions of network by methods or means specially adapted therefor of meshed work for filters or sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/08—Upsetting

Definitions

  • the invention relates to a method for producing a shaped wire body from at least one wire. Furthermore, the invention relates to a manufactured by forming, to be flowed through by a mass flow wire molding of at least one wire.
  • Wire moldings of the type mentioned have long been known and are used in particular as a filter, cooling elements and the like.
  • a mass flow to be cleaned or cooled for example a liquid or a gas, is passed through the shaped wire body.
  • Wire-formed articles are mass-produced products whose production, even minor simplifications in the production process, lead to a significant reduction in both the technical and financial costs.
  • shaped wire bodies are manufactured from precursors, which are plastically deformed to form the shaped wire body by using appropriate shaping devices in the desired, final shape.
  • the precursors are usually wire mesh, wire mesh or Drahtgewirke, ie precursors that have already undergone highly complex and expensive manufacturing processes. Since wire knits, wire mesh and Drahtgewirke are usually produced in continuous processes, for example, knitted endless hoses or endless mats, woven or knitted endless mats, they must be pretreated before forming, for example, cut to the desired length. Not only large amounts of metal waste, such as chaff, wire filaments, etc. fall to this. Also, the manufactured hose and mat sections usually have to be freed manually of residues such as hackles and wire filaments which have become entangled in the detachment of the endless material in the tube and mat sections.
  • the wire material usually has to be oiled before knitting, weaving or knitting so that the knitting, weaving or knitting process can proceed without friction.
  • the preproducts thus prepared are then inserted into the forming device and formed into the desired shaped wire bodies.
  • this object is achieved by a method having the features of claim 1 and in particular by preforming an elongated wire initially in the form of a spiral helical structure to produce the wire shaped body, placing the helically preformed wire in a forming device to form an intermediate product and introducing the precursor Help the Umformei- direction is converted to the wire molding.
  • a conventional wire is preformed initially in the form of a helical helical structure, the term "helical helical structure" in the present application being understood to mean a single or multiple cylindrical spiral or helix.
  • the preformed wire forms the precursor only in the forming device
  • the wire section inserted as a precursor in the forming device is shaped into the shaped wire body. It should be noted that the wire is either separated during insertion into the forming device, or has already been separated before insertion into the forming device and is inserted as a wire section in the forming device.
  • adjacently arranged helical sections of the wire are engaged with each other and plastically deformed with each other so that after forming a defined but permeable to liquids and gases wire structure is maintained.
  • the method according to the invention eliminates a number of upstream manufacturing steps, which were previously common in conventional manufacturing processes, so preparing the wires before knitting. Weaving or knitting, knitting, weaving or knitting the wires into continuous intermediates, separating individual sections from the continuous intermediates, or descaling and cleaning the sections of tubing and mats previously separated from the continuous intermediate.
  • the wire is inserted into the shaping device in such a way that, viewed over its length, the wire undergoes a continuous change in its spatial orientation.
  • the shaped wire body obtains a predetermined total weight
  • the wire is inserted in a circle around an imaginary center in the negative form of the forming device, wherein when inserting the wire and the distance to the imaginary center can be varied.
  • the length of necessary wire can be reduced compared to conventional wire shaped bodies made of wires with a round cross section, due to the inherently unfavorable flow behavior of the wires with an angular cross section Nevertheless, an approximately constant flow resistance can be maintained.
  • Drahtfomi oder is used as a reference, which is made of a round wire with a wire diameter of one millimeter and a length of 1000 mm
  • a cross-sectionally square wire with an edge length of 0.6 mm and a length of 1000 mm results in a weight saving of approximately 55% with approximately the same flow resistance.
  • a wire is used, which has a rectangular or square cross-sectional shape, since these cross-sectional shapes can be easily made by pulling the wire.
  • an arrangement is suitable which has a wire feed, a device for forming a wire fed from the wire feed into a helical helical structure and a forming device.
  • the invention relates to a preferably produced by using the method according to the invention by forming, to be flowed through by a mass flow molding of at least one wire, which is characterized in that the wire has been preformed before forming only in a helical spiral structure and on its length, as seen in its longitudinal orientation, has a continuous change in its orientation, with mutually adjacent helical sections of the wire engaging one another.
  • Fig. 1 is a schematic side view of an arrangement for carrying out the method according to the invention
  • FIGS. 2a to c show a schematic side view of the forming device used in the arrangement according to FIG. 1 in different operating positions;
  • Fig. 3 is a schematic side view of an inventively prepared
  • FIG. 1 an arrangement 10 for carrying out the method according to the invention is shown in a schematic side view.
  • the arrangement 10 has a wire feed 12, a device 14 for forming a wire 16 fed from the wire feed 12 into a helical spiral structure and a forming device 18.
  • the forming device 18 is formed from a housing 20, at the lower end of a lower punch 22 is provided.
  • the housing 20 has a cylindrical forming space 24, in which a concentrically extending from the lower punch 22 from the housing 20 support member 26 is attached.
  • the support member 26 is formed in the shape of a cylinder with a rounded end.
  • an upper punch 28 is lowered, which has a through the upper punch 28 extending through hole 30.
  • the through hole 30 is dimensioned so that the support member 26 when lowering the upper punch 28 in the housing 20 can slide smoothly through the through hole 30.
  • first wire 16 is fed from the wire feed 12, for example a motor-driven wire reel, to the device 14.
  • the supplied elongated wire 16 is formed into a helical helical structure.
  • the thus spirally preformed wire 16 is inserted in a circle around the support member 26 by means of a guide, not shown, in the forming space 24.
  • the wire 16 is separated taking into account the remaining portion between the device 14 and the forming space 24 of the device 14 from the further supplied wire 16 and the wire feed 12 stopped.
  • the arranged in the forming space 24 wire 16 forms a precursor 32, the further processing is described below with reference to FIGS. 2 a to c.
  • FIGS. 2 a to c the forming device 18 is shown in three different operating parts.
  • FIG. 3 shows in side view a wire shaped body 34 produced by the method according to the invention. In the wire molding 34 shown in FIG.
  • the wire 16 which had been preformed into a spiral helical structure before forming, has a continuous change in its spatial orientation along its length, with spiral sections adjacent to each other of the wire 16 are engaged with each other.
  • the shaped shaped body 34 thus formed can now additionally be secured in its shape by welding points or welds on the outer surface.
  • a wire 16 is used with polygonal cross-section.
  • a wire 16 having a square cross-sectional shape it is possible to very selectively save weight.
  • a wire 16 with a polygonal cross section can be processed very well and trouble-free with the previously described arrangement.
  • the weight saving can be in a range of 25 to 60% in a wire molded body 34 produced according to the invention compared with a wire molding, which is made of a wire with a round cross-section.
  • the reference used wire shaped body is made of a wire with a round cross-section.
  • the wire has a diameter d of 1, 00 mm and a length 1 of 1000 mm. This results in a flow around cross-sectional area A p of 0.79 mm 2 at a resistance coefficient C w of 1.2.
  • the wire formed body 34 produced according to the invention is made of a wire 16 having a square cross section.
  • the wire cross-section has an edge length a of 0.79 mm, so that also results in a cross-sectional area A p of 0.79 mm.
  • Due to the higher coefficient of resistance C w of 2.0 results in an approximately constant flow resistance of 100.27% based on the reference wire shaped body, a necessary length 1 for the wire 16 of only 678 mm, so that, also based on the reference Drahtfonnköiper only 67.92% material must be used, resulting in a material savings of 32.08%.
  • Only the amount of heat absorbed by the shaped wire body 34 according to the first embodiment is only 76.57% based on the reference wire molding.
  • the shaped wire body 34 is also made of a wire 16 having a square cross-section.
  • the wire cross-section here has an edge length a of only 0.60 mm, so that only a cross-sectional area A p of 0.36 mm results.
  • the flow resistance and the amount of heat to be dissipated in the wire shaped body 34 produced according to the invention can be adjusted very selectively by comparatively simple measures, such as a change in the cross-sectional dimensions or a change in the wire length. be set when a wire 16 is used with angular cross section as the starting material.

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

Abstract

L'invention concerne un procédé pour la réalisation d'un corps façonné en fil à partir d'au moins un fil (16), dans lequel le fil allongé est préformé d'abord sous la forme d'une structure hélicoïdale en forme de spirale, le fil préformé en spirale est introduit ensuite dans un dispositif de formage (18) pour former une ébauche et, ensuite, au moyen du dispositif de formage, ladite ébauche est transformée en corps façonné en fil. L'invention concerne également un corps façonné en fil.
PCT/EP2014/056721 2013-04-03 2014-04-03 Procédé pour la réalisation d'un corps façonné en fil, ainsi que corps façonné en fil WO2014161949A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14714744.1A EP2981372B1 (fr) 2013-04-03 2014-04-03 Procédé pour la réalisation d'un corps façonné en fil, ainsi que corps façonné en fil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013005688.8A DE102013005688A1 (de) 2013-04-03 2013-04-03 Verfahren zur Herstellung eines Drahtformkörpers sowie Drahtformkörper
DE102013005688.8 2013-04-03

Publications (1)

Publication Number Publication Date
WO2014161949A1 true WO2014161949A1 (fr) 2014-10-09

Family

ID=50424280

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/056721 WO2014161949A1 (fr) 2013-04-03 2014-04-03 Procédé pour la réalisation d'un corps façonné en fil, ainsi que corps façonné en fil

Country Status (3)

Country Link
EP (1) EP2981372B1 (fr)
DE (1) DE102013005688A1 (fr)
WO (1) WO2014161949A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014117115A1 (de) * 2014-11-23 2016-05-25 Webasto SE Verdampferanordnung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6393440A (ja) * 1986-10-07 1988-04-23 Chuo Spring Co Ltd 金属ワイヤ圧縮成形品の成形方法
EP0370734A2 (fr) * 1988-11-24 1990-05-30 Ngk Insulators, Ltd. Filtre pour producteur de gaz et procédé de fabrication
JPH02253060A (ja) * 1989-03-24 1990-10-11 Nippon Pillar Packing Co Ltd ガスケット及びその製造方法
JPH09276966A (ja) * 1996-04-17 1997-10-28 Kokusan Buhin Kogyo Kk 金属線成形体

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6393440A (ja) * 1986-10-07 1988-04-23 Chuo Spring Co Ltd 金属ワイヤ圧縮成形品の成形方法
EP0370734A2 (fr) * 1988-11-24 1990-05-30 Ngk Insulators, Ltd. Filtre pour producteur de gaz et procédé de fabrication
JPH02253060A (ja) * 1989-03-24 1990-10-11 Nippon Pillar Packing Co Ltd ガスケット及びその製造方法
JPH09276966A (ja) * 1996-04-17 1997-10-28 Kokusan Buhin Kogyo Kk 金属線成形体

Also Published As

Publication number Publication date
EP2981372B1 (fr) 2019-08-14
EP2981372A1 (fr) 2016-02-10
DE102013005688A1 (de) 2014-10-09

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