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EP2845664A1 - Procédé et dispositif de fabrication d'un tuyau ondulé en métal - Google Patents

Procédé et dispositif de fabrication d'un tuyau ondulé en métal Download PDF

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Publication number
EP2845664A1
EP2845664A1 EP14181109.1A EP14181109A EP2845664A1 EP 2845664 A1 EP2845664 A1 EP 2845664A1 EP 14181109 A EP14181109 A EP 14181109A EP 2845664 A1 EP2845664 A1 EP 2845664A1
Authority
EP
European Patent Office
Prior art keywords
tube
corrugation
clamping
same
tensioning device
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.)
Ceased
Application number
EP14181109.1A
Other languages
German (de)
English (en)
Inventor
Nico Lange
Christian Reiter
Christian Dr. Frohne
Holger Schulz
Michael Meyer
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.)
Nexans SA
Original Assignee
Nexans SA
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 Nexans SA filed Critical Nexans SA
Priority to EP14181109.1A priority Critical patent/EP2845664A1/fr
Priority to KR20140117697A priority patent/KR20150029567A/ko
Priority to BR102014022289A priority patent/BR102014022289A2/pt
Priority to US14/480,672 priority patent/US9199294B2/en
Priority to RU2014136751A priority patent/RU2014136751A/ru
Priority to CN201410457977.6A priority patent/CN104416032A/zh
Publication of EP2845664A1 publication Critical patent/EP2845664A1/fr
Ceased 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
    • B21D15/00—Corrugating tubes
    • B21D15/04—Corrugating tubes transversely, e.g. helically
    • B21D15/06—Corrugating tubes transversely, e.g. helically annularly
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/16—Making tubes with varying diameter in longitudinal direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/205—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with annular guides

Definitions

  • the invention relates to a method for producing a corrugated metal tube transversely to its longitudinal direction, which receives a corrugation consisting of wave crests and troughs, in which a wave device is used, which a first corrugation as Vorwellung in the longitudinal direction through the same moving tube is pressed, with a given axial distance between the wave crests thereof, and in which the distance between the wave crests is subsequently reduced to obtain a second corrugation by a voltage applied to the tube clamping unit and to an apparatus for performing the method ( CH 496 490 A ).
  • the pipes are well bendable by the corrugation and stable against radial loads.
  • the corrugation may be helical or annular. This is made possible with corresponding devices which press the corrugation in a smooth tube moved in its longitudinal direction.
  • Such tubes can be used to transport liquid or gaseous media. They can also be used as electrical conductors for high frequency cables or as sheaths for power cables and communication cables.
  • the degree of bendability depends substantially on the axial distance of the wave crests from each other and on the depth of the corrugation, d. H. from the radial difference of the wave crests and the respective adjacent troughs.
  • the initially mentioned CH 496 490 A describes a corrugating device for tubes, which has a first arrangement, with which in a smooth tube step by step, discontinuously annular notches are pressed.
  • the tube provided with a corrugation produced by the notches is fed to a second arrangement in which the axial distance between the crests of the undulations produced in the first arrangement is reduced.
  • the second arrangement consists of three parts, which are connected to each other via effective in the axial direction of the tube springs. The three parts cooperate in a two-stage operation, compress the corrugation of the corrugated tube and cause a feed movement of the tube through the first arrangement by one step. In the first arrangement, a further annular notch is then pressed into the tube.
  • the invention has the object of developing the initially described method and the associated device so that a continuous production of a corrugated tube with compressed corrugation is possible.
  • This method and the corresponding device work continuously.
  • the tube is moved without interruption in its longitudinal direction by the shaft means and accordingly provided continuously with a first corrugation.
  • This first corrugation is a pre-corrugation that is subsequently compressed to the desired corrugation.
  • the tube is first corrugated in a known technique without significant material stress.
  • the narrower or deeper corrugation is then achieved by the interaction of the two tensioning devices, which rest firmly against the same in different regions of the tube.
  • the second clamping device is adjusted so that it acts as a kind of fixed point or realized a fixed point against which the first clamping device presses the corrugated tube with continuous feed.
  • the wave crests of the corrugated tube are brought closer to each other, so that there is a tube that has an increased flexibility.
  • Both fixtures are moved back with short-term release of the tube in a cyclic order opposite to the direction of movement of the tube and put back on the pipe. For example, this can be done for the first clamping device when two peaks are pressed together. With appropriate effort, the cyclical return movement of at least the first clamping device can also be carried out after each compressed crest. This cyclical return movement of the tensioning devices can also take place when more than two wave crests are compressed. Both fixtures can be moved back simultaneously. Advantageously, however, they are moved back in time, so that always one of the clamping devices rests in the associated area on the pipe.
  • the distance of the peaks in the compressed region of the tube from each other can be adjusted by the type of movement to be used for the second clamping device.
  • the second tensioning device can also be moved with the tube, but with a relation to the speed of the first tensioning device lower speed.
  • the second clamping device can also, without the use of their drive, so at rest, only be applied firmly to the pipe. It is also possible to drive the second clamping device during continuous production in the direction opposite to the direction of movement of the first clamping device.
  • the two clamping devices are advantageously made of two parts designed as half shells, which can be locked together in the working position and then form a ring. But it can also be used consisting of more than two parts clamping devices.
  • the parts of the clamping devices can rest in the working position only sufficiently firmly outside on the respective areas of the tube.
  • at least the first clamping device but on its inner surface at least one annular or helically extending rib, which engages in a working position in a wave trough of the corrugated tube.
  • the return movement of the two clamping devices can advantageously be carried out automatically, for example by means of their drives or by separate drives.
  • a corrugation is pressed into an initially smooth tube of metal, preferably of steel.
  • the tube can basically be a prefabricated tube in any desired way.
  • corrugation can be helical, but advantageously designed ring-shaped.
  • Fig. 1 is drawn from a coil 1, preferably consisting of steel strip 2 and fed in the direction indicated by an arrow P direction of a forming unit 3.
  • the band 2 is longitudinally formed into a slit tube in which the two edges of the band 2 abut each other at a longitudinal slot.
  • the slot is welded in a welding device 4, whereby a completely closed, smooth tube 5 is generated.
  • a generally known trigger 6 is used for the movement of the belt 2 and the tube 5 produced therefrom.
  • the trigger 6 may be, for example, a caterpillar take-off or a jaw trigger.
  • the finished smooth tube 5 then passes into a shaft device 7, in which a transverse to its longitudinal direction corrugation is pressed as Vorwellung in the same, which - as already mentioned - preferably extends annularly.
  • the pre-corrugated tube 5 goes out of the left part of Fig. 2 out.
  • the vorgewellte tube 5 is then fed to a clamping unit 8, whose structure and operation on the basis of Fig. 2 and 3 be explained. By means of the clamping unit 8, the Vorwellung is compressed.
  • the shape of the tube 5 provided with a compressed corrugation comes from the right side of the Fig. 2 out.
  • the then finished tube 5 can be wound onto a coil 9.
  • the clamping unit 8 consists of two separate clamping devices 10 and 11, which rest firmly in working position at different areas of the tube 5. They are parallel to the axis of the tube 5 in the direction of the double arrows 12 and 13 displaced.
  • the two tensioning devices 10 and 11 may be guided, for example, along a schematically indicated guide element, for example a rail 14.
  • the clamping devices 10 and 11 are designed for example as half shells, which are locked in working position under fixed contact with the pipe 5 to form a ring. Both clamping devices 10 and 11, engage in working position in the corrugation of the tube 5 a. They are at the beginning of the process on the pre-corrugated pipe 5 at.
  • the tensioning device 10 continues to rest in the region 15 of the pre-corrugated tube 5, while the tensioning device 11 then abuts the compressed region 16 of the tube 5 with the compressed corrugation during continuous production.
  • the tensioning device 11 is also equipped with a drive. To further explain the method, it is first assumed that the clamping device 11 is held stationary by its drive at the beginning of the process. The tensioning device 11 then holds the tube 5 at the point where it is applied to the same. As a result, it realizes a fixed point against which the tube 5 provided with the pre-corrugation is pressed by the first clamping device 10. The corrugation of the tube 5 is thereby compressed so that the distance between the wave crests is reduced. In this way, by the advance of the first tensioning device 10, for example, three wave crests are compressed, as shown in FIG Fig. 3b is shown.
  • At least the tensioning device 10 must then be moved back in the opposite direction to the direction of movement of the tube 5 according to the arrow 17 until they are out of Fig. 3c has an apparent new position.
  • the second jig 11, which holds the tube 5 only firmly, could initially maintain their position, but it can also in the direction of arrow 18 in the off Fig. 3c be moved back apparent position.
  • the clamping devices 10 and 11 are first removed from the tube 5 by the annularly joined parts are detached from each other. In the respective new position, the parts of the two clamping devices 10 and 11 are reassembled into a ring and locked together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP14181109.1A 2013-09-10 2014-08-15 Procédé et dispositif de fabrication d'un tuyau ondulé en métal Ceased EP2845664A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP14181109.1A EP2845664A1 (fr) 2013-09-10 2014-08-15 Procédé et dispositif de fabrication d'un tuyau ondulé en métal
KR20140117697A KR20150029567A (ko) 2013-09-10 2014-09-04 주름진 금속 튜브의 제조 방법 및 장치
BR102014022289A BR102014022289A2 (pt) 2013-09-10 2014-09-09 processo e dispositivo para a produção de um tubo ondulado de metal
US14/480,672 US9199294B2 (en) 2013-09-10 2014-09-09 Method and device for manufacturing a corrugated metal pipe
RU2014136751A RU2014136751A (ru) 2013-09-10 2014-09-09 Способ и устройство для изготовления гофрированной металлической трубы
CN201410457977.6A CN104416032A (zh) 2013-09-10 2014-09-10 制造由金属构成的波浪形管的方法和设备

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13306238 2013-09-10
EP14181109.1A EP2845664A1 (fr) 2013-09-10 2014-08-15 Procédé et dispositif de fabrication d'un tuyau ondulé en métal

Publications (1)

Publication Number Publication Date
EP2845664A1 true EP2845664A1 (fr) 2015-03-11

Family

ID=49230671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14181109.1A Ceased EP2845664A1 (fr) 2013-09-10 2014-08-15 Procédé et dispositif de fabrication d'un tuyau ondulé en métal

Country Status (6)

Country Link
US (1) US9199294B2 (fr)
EP (1) EP2845664A1 (fr)
KR (1) KR20150029567A (fr)
CN (1) CN104416032A (fr)
BR (1) BR102014022289A2 (fr)
RU (1) RU2014136751A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113319149A (zh) * 2021-08-03 2021-08-31 天津市大千管业有限公司 一种生产环形金属波纹管的一体成型设备及方法
CN118023366A (zh) * 2024-04-11 2024-05-14 浙江博美特能源设备有限公司 一种金属波纹管连续成型装置
CN118699153A (zh) * 2024-08-27 2024-09-27 营口希泰精密焊接科技有限公司 金属波纹管生产设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109277445B (zh) * 2018-11-09 2024-01-19 沈阳工业大学 一种金属波纹管流体压力成形装置和方法
CN109226332B (zh) * 2018-11-15 2024-04-12 宁波市狮山管业有限公司 一体式波纹管连续密波成型设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749963A (en) * 1946-04-12 1956-06-12 Technicraft Lab Inc Manufacture of flexible corrugated seamless metal tubing
CH496490A (de) * 1969-10-30 1970-09-30 Universal Metal Hose Company Wellvorrichtung für Rohre
DE19529731A1 (de) * 1995-08-12 1997-02-13 Supervis Ets Verfahren zur Herstellung von gewellten Metallrohren

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3143794A (en) * 1959-08-18 1964-08-11 Teddington Aircraft Controls L Method of making flexible metallic bellows
DE2400842C2 (de) 1974-01-09 1982-08-19 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Verfahren und Vorrichtung zur Herstellung flexibler Metallrohre
JP3341411B2 (ja) * 1993-11-26 2002-11-05 日本精工株式会社 金属製ベローズの製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749963A (en) * 1946-04-12 1956-06-12 Technicraft Lab Inc Manufacture of flexible corrugated seamless metal tubing
CH496490A (de) * 1969-10-30 1970-09-30 Universal Metal Hose Company Wellvorrichtung für Rohre
DE19529731A1 (de) * 1995-08-12 1997-02-13 Supervis Ets Verfahren zur Herstellung von gewellten Metallrohren

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113319149A (zh) * 2021-08-03 2021-08-31 天津市大千管业有限公司 一种生产环形金属波纹管的一体成型设备及方法
CN118023366A (zh) * 2024-04-11 2024-05-14 浙江博美特能源设备有限公司 一种金属波纹管连续成型装置
CN118699153A (zh) * 2024-08-27 2024-09-27 营口希泰精密焊接科技有限公司 金属波纹管生产设备

Also Published As

Publication number Publication date
US9199294B2 (en) 2015-12-01
KR20150029567A (ko) 2015-03-18
BR102014022289A2 (pt) 2015-09-15
CN104416032A (zh) 2015-03-18
US20150068263A1 (en) 2015-03-12
RU2014136751A (ru) 2016-03-27

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