EP1010482B1 - Vorrichtung zur Herstellung eines Geflechtes aus Metalldraht - Google Patents

Vorrichtung zur Herstellung eines Geflechtes aus Metalldraht Download PDF

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Publication number
EP1010482B1
EP1010482B1 EP19990640001 EP99640001A EP1010482B1 EP 1010482 B1 EP1010482 B1 EP 1010482B1 EP 19990640001 EP19990640001 EP 19990640001 EP 99640001 A EP99640001 A EP 99640001A EP 1010482 B1 EP1010482 B1 EP 1010482B1
Authority
EP
European Patent Office
Prior art keywords
braid
pressure finger
wires
wire strands
deformation
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
EP19990640001
Other languages
English (en)
French (fr)
Other versions
EP1010482A3 (de
EP1010482A2 (de
Inventor
Gianluca C/Office Mediterraneen de Brevets Gazza
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.)
UNIGASKET S.R.L
Original Assignee
Unigasket Srl
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 Unigasket Srl filed Critical Unigasket Srl
Publication of EP1010482A2 publication Critical patent/EP1010482A2/de
Publication of EP1010482A3 publication Critical patent/EP1010482A3/de
Application granted granted Critical
Publication of EP1010482B1 publication Critical patent/EP1010482B1/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
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F17/00—Jacketing or reinforcing articles with wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F9/00—Straining wire

Definitions

  • the present invention relates to a manufacturing device of a braid composed of metallic wires according to the preamble of claim 1 (see p.e. US-A-3 720 054).
  • Such braids are used to make a blanket of reinforcement on the outer surface of pipes.
  • the device presented here finds its application especially in the manufacturing industry of braids.
  • Such braids can be used to form a reinforcement cover on the surface of pipes such as plastic pipes.
  • Pipes are understood to mean any type of tubular pipe in various materials.
  • the designation pipes notably includes sleeves and connecting parts in the field of pipes for fluids.
  • Reinforcement cover in the form of wires braided metal is often necessary in use of pipes.
  • such a reinforcement cover is used for high pressure fluid lines.
  • pipes are commonly used plastic often made of extruded polymer material including resistance is unimportant.
  • This document presents a flexible pipe or hose, reinforced, comprising a tubular body, extruded from a rubbery or plastic material, as well as a reinforcement braided.
  • This reinforcement is produced by applying one or more flexible reinforcing filaments, via guide means, on the outer surface of the extruded tubular body that is made advance relative to the guide means while these last revolve around the body and are submitted simultaneously back and forth parallel to the longitudinal axis of the body.
  • the braiding produced by the implementation of this technique provides reinforcement on the pipe surface.
  • the object of the present invention is to remedy the disadvantages of the devices currently in use and presents for this purpose a device for making a particularly advantageous braid.
  • One of the first objects of the invention is to increase the quality of the surface condition of pipes covered with metallic braids.
  • Another aim of the method and the device presented here is increase the cohesion of the wires, especially when sectioning of the pipe is provided in particular by the installation of connecting pieces.
  • the invention also aims to improve the application and the positioning of the wires on the pipe as well as decrease the relative play between the wires.
  • the device presented increases the cohesion of the metallic wires making up the braid.
  • the invention also has the advantage of allowing the wires metal to better fit the cylindrical surface of the pipes.
  • the pressure finger is provided with means for adjusting position allowing to modify the mechanical stresses applied in order to adjust the deformation undergone by the wires.
  • It includes means for winding the braid formed, the wires are curved, said winding means comprising two overlapping tabs, one with a groove, the other a tongue which cooperate to form a guide channel for son.
  • FIG. 1 illustrates an overview of the device according to the invention.
  • Figure 2 is an enlarged view of a detail of the figure 1.
  • Figure 3 is a view of the device from an angle different.
  • FIG. 4 illustrates the production of winding means in a particular embodiment of the invention.
  • Figure 5 is a sectional view along line A-A of the figure 4.
  • the device 1 according to the invention applies to the manufacture of braids composed of metallic threads.
  • Such braids are then used to cover the external surface of pipes in order to constitute a reinforcement.
  • the storage elements 3 are for example coils on which are wound the unitary wires 2a.
  • the invention applies to the formation of braids from of sons 2a.
  • the threads used are threads metal.
  • any other use using the threads of different material comes under the present invention.
  • the unitary wires 2a are brought to plastic deformation means, wires 2a giving them a residual curvature.
  • the device may include means inlet 13 as shown in FIGS. 1 and 3.
  • the supply means 13 may be constituted so common and in particular by pulleys around which the sons are trained.
  • the means of deformation that the device comprises according to the invention ensure plastic deformation of son.
  • the plastic deformation produced allows better application of the wires 2a on the periphery of the pipes.
  • the means of deformation include a pressure finger 4, a pulley upstream 5 and a downstream pulley 6 as illustrated in FIG. 2.
  • the pressure finger 4 allows the application of a force mechanical on wires 2a and plastic deformation.
  • the positioning of the pressure finger 4 and the pulleys 5, 6 provides a triangular arrangement allowing application mechanical stresses on the finger 4.
  • the wires 2a, at the level of the upstream pulley 5 are still in the initial state i.e. straight.
  • the metal wires marked 2b then underwent plastic deformation and reach the downstream pulley 6.
  • a slide allows to translate the finger pressure 4 to modify the triangular shape obtained by the pressure finger 4 and the two pulleys 5, 6.
  • the braid formed from deformed wires 2b can then be used to make the reinforcement covers on the surface of pipes. If this coverage is not done immediately after the metal wires 2b have been deformed, the device according to the invention may comprise winding means 8.
  • the winding means 8 may include so running a coil 14 for receiving braids composed of metallic wires 2b around which the wires are wound metallic 2b composing the braid.
  • the winding means 8 may consist of a common way but also in a particular way.
  • the winding means 8 may include two overlapping tabs 9, 10 as shown in detail in Figure 4.
  • FIGS. 1 and 2 are positioned on the device according to the invention.
  • the two overlapping tabs 9, 10 are used to guide and to orient the braid composed of metallic wires 2b towards the coil 14.
  • one of the legs has a groove 11 to its end as shown in Figure 5.
  • Figure 5 also shows the formation of a tongue 12 at the end of the other tab 10.
  • the cooperation of the two legs 9, 10 allows the formation a wire guide channel, at least partial insertion of the tongue 12 in the groove 11 forming this channel.
  • the overlapping tabs 9, 10 will be positioned after the downstream pulley 6 and before the braid receiving element such as coil 14.
  • the device according to the invention is implemented works in a very practical way.
  • the threads constituting the braid are storage element fabric such as spools 3.
  • the deformation operated, the braid can be received for its storage before the coverage of pipes.
  • the device according to the invention comprises winding means 8.
  • Figure 1 shows a device where composite braids of three unitary sons 2a are formed.
  • the number of metal wires 2a used to making the braid is not limited.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Ropes Or Cables (AREA)

Claims (4)

  1. Vorrichtung (1) zur Herstellung einer Litze bestehend aus Metallfäden, geeignet zur Bildung einer Litze aus mehreren Lagerelementen (3) zugeführten Einzelfäden (2a), die zur Herstellung einer verstärkenden Abdeckung der äußeren Oberfläche von Schläuchen dient und Mittel zur plastischen Verformung der Fäden (2a) besitzt, die diesen eine bleibende Verformung verleihen, um den Halt der Litze auf dem Schlauch zu verbessern, gekennzeichnet dadurch, dass die Verformungsmittel
    einen Pressfinger (4),
    eine erste Rolle (5) zum Zuführen der Fäden (2a) zum Pressfinger (4) und
    eine zweite Rolle (6) nach dem Pressfinger (4) besitzen, wobei die beiden Rollen (5, 6) und der Pressfinger (4) eine dreieckförmige Anordnung aufweisen, um mechanische Spannungen auf die Fäden (2a) aufzubringen, wenn diese am Pressfinger (4) vorbeilaufen.
  2. Vorrichtung gemäß Anspruch 1, gekennzeichnet dadurch, dass der Pressfinger (4) mit Positions-Einstellvorrichtungen (7) versehen ist, mit denen die aufgebrachten mechanischen Spannungen geändert werden können, um die Verformung der Fäden (2a) einzustellen.
  3. Vorrichtung gemäß Anspruch 2, gekennzeichnet dadurch, dass die Einstellvorrichtungen (7) eine Schiene zur translatorischen Verschiebung des Pressfingers (4) besitzen.
  4. Vorrichtung gemäß einem der Ansprüche 1 bis 3, gekennzeichnet dadurch, dass sie Aufspulvorrichtungen (8) der gebildeten Litze mit den gebogenen Fäden (2b) besitzt, und die Aufspulvorrichtungen (8) zwei übereinander liegende Pratzen (9, 10) besitzen, von denen eine (9) eine Nut (11) und die andere (10) eine Zunge (12) aufweisen, welche zusammenwirken, um einen Führungskanal für die Fäden zu bilden.
EP19990640001 1998-12-18 1999-06-15 Vorrichtung zur Herstellung eines Geflechtes aus Metalldraht Expired - Lifetime EP1010482B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MC2414A MC2489A1 (fr) 1998-12-18 1998-12-18 Procédé et dispositif de fabrication d'une tresse composée de fils métaliques
MC2414 1998-12-18

Publications (3)

Publication Number Publication Date
EP1010482A2 EP1010482A2 (de) 2000-06-21
EP1010482A3 EP1010482A3 (de) 2000-12-06
EP1010482B1 true EP1010482B1 (de) 2004-08-04

Family

ID=19738376

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990640001 Expired - Lifetime EP1010482B1 (de) 1998-12-18 1999-06-15 Vorrichtung zur Herstellung eines Geflechtes aus Metalldraht

Country Status (3)

Country Link
EP (1) EP1010482B1 (de)
DE (1) DE69919113D1 (de)
MC (1) MC2489A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3145760A (en) * 1959-12-04 1964-08-25 Elek Ska Svetsningsaktiebolage Wire coiling
US3720054A (en) * 1971-09-07 1973-03-13 North American Rockwell Method and apparatus for wire winding
JPS54145348A (en) * 1978-04-28 1979-11-13 Kobe Steel Ltd Winding of metal wire around winding structure
US4446607A (en) * 1981-07-30 1984-05-08 Caterpillar Tractor Co. Apparatus and method for forming an external guard member on a hose
DE3505739A1 (de) * 1985-02-20 1986-08-21 Th. Kieserling & Albrecht Gmbh & Co, 5650 Solingen Vorrichtung zum rundbiegen von konischen draehten

Also Published As

Publication number Publication date
MC2489A1 (fr) 1999-11-22
EP1010482A3 (de) 2000-12-06
EP1010482A2 (de) 2000-06-21
DE69919113D1 (de) 2004-09-09

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