EP0344570A3 - Method and apparatus for making a spiral tubing - Google Patents

Method and apparatus for making a spiral tubing Download PDF

Info

Publication number
EP0344570A3
EP0344570A3 EP19890109206 EP89109206A EP0344570A3 EP 0344570 A3 EP0344570 A3 EP 0344570A3 EP 19890109206 EP19890109206 EP 19890109206 EP 89109206 A EP89109206 A EP 89109206A EP 0344570 A3 EP0344570 A3 EP 0344570A3
Authority
EP
European Patent Office
Prior art keywords
expanding mandrel
pipe section
making
pipe
designed
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.)
Granted
Application number
EP19890109206
Other languages
German (de)
French (fr)
Other versions
EP0344570A2 (en
EP0344570B1 (en
Inventor
Hermann Fragge
Ewald Westerkamp
Felix Willenborg
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.)
Siekmann Fittings GmbH and Co KG
Original Assignee
Siekmann Fittings GmbH and Co KG
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 Siekmann Fittings GmbH and Co KG filed Critical Siekmann Fittings GmbH and Co KG
Publication of EP0344570A2 publication Critical patent/EP0344570A2/en
Publication of EP0344570A3 publication Critical patent/EP0344570A3/en
Application granted granted Critical
Publication of EP0344570B1 publication Critical patent/EP0344570B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B21D9/00—Bending tubes using mandrels or the like
    • B21D9/12—Bending tubes using mandrels or the like by pushing over a curved mandrel; by pushing through a curved die
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

Ein Verfahren zur Herstellung einer Rohrwendel, wobei ein Rohrabschnitt auf einer Presse (1) in Richtung der Rohrachse über einen Aufweitdorn (5) gedrückt wird, welcher zumindest in einem Endbereich schraubenförmig gekrümmt ist, wird im Sinne einer sauberen, schnellen und präzisen Formgebung und einer Anwendung dieses Ver­ fahrens für beliebige Wendelsteigungen in der Weise ausgestaltet, daß der Rohrabschnitt (6) gegenüber dem Aufweitdorn (5) eine Drehbewegung um die Rohrachse aus­ führt. Eine Vorrichtung zur Durchführung des Verfahrens sieht vor, daß ein zur Vorbewegung des Rohrabschnitts (6) dienender Preßbär (3) und/oder der Aufweitdorn (5) zueinander drehbeweglich ausgebildet sind. A method of making a coiled tubing, wherein a pipe section on a press (1) in the direction of Pipe axis is pressed over an expanding mandrel (5), which is helical at least in one end region is curved, in the sense of a clean, fast and precise design and application of this ver driving for any spiral slopes in the way designed that the pipe section (6) relative to the Expanding mandrel (5) rotates around the pipe axis leads. A device for performing the method provides that one to advance the pipe section (6) serving press bear (3) and / or the expanding mandrel (5) are designed to be rotatable relative to one another.

EP89109206A 1988-05-30 1989-05-23 Method and apparatus for making a spiral tubing Expired - Lifetime EP0344570B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3818315 1988-05-30
DE3818315 1988-05-30
DE3822541 1988-07-04
DE3822541 1988-07-04

Publications (3)

Publication Number Publication Date
EP0344570A2 EP0344570A2 (en) 1989-12-06
EP0344570A3 true EP0344570A3 (en) 1991-02-06
EP0344570B1 EP0344570B1 (en) 1992-12-09

Family

ID=25868596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89109206A Expired - Lifetime EP0344570B1 (en) 1988-05-30 1989-05-23 Method and apparatus for making a spiral tubing

Country Status (3)

Country Link
US (1) US4951493A (en)
EP (1) EP0344570B1 (en)
DE (1) DE58902937D1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4323759A1 (en) * 1993-07-15 1995-01-19 Artemis Kautschuk Kunststoff Process for the production of rotors for eccentric screw pumps
GB0024909D0 (en) * 2000-10-11 2000-11-22 Springer Johann Drill string member
US7137281B1 (en) 2004-02-23 2006-11-21 Mccorvey Robert L Process and apparatus for forming oversized circular pipe
DE102004019698B4 (en) 2004-04-20 2010-06-10 Erne Fittings Gmbh Spiral tube element
DE102004030327A1 (en) * 2004-06-23 2006-01-12 Erne Fittings Gmbh Method and expanding mandrel for manufacturing a tubular element
US20080128583A1 (en) * 2006-07-17 2008-06-05 Doug Smoljo Form and method and apparatus for making a form
CN113894172B (en) * 2021-10-13 2022-11-15 北京科技大学 Screw rod double-roller driving extrusion forming device and process
CN113894170B (en) * 2021-10-13 2022-11-15 北京科技大学 Double-roller driving extrusion forming device and process for hollow screw rod
CN113894173B (en) * 2021-10-13 2022-11-15 北京科技大学 Hollow screw rod three-roller driving extrusion forming device and process
CN113894171B (en) * 2021-10-13 2022-12-02 北京科技大学 Screw rod three-roller driving extrusion forming device and process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505623A (en) * 1948-07-15 1950-04-25 Tube Turns Inc Apparatus for manufacture of helical coils of tubing
FR2155827A1 (en) * 1971-10-08 1973-05-25 Sigma Lutin
GB2064392A (en) * 1979-12-10 1981-06-17 Grotnes Metalforming Syst Treatment of metal pipes
DE3311214A1 (en) * 1981-12-16 1984-10-04 Sigma Koncern, Olmütz/Olomouc MOLDING TOOL FOR PRODUCING TWISTED PARTS FROM PIPE BLanks
AT384966B (en) * 1986-06-09 1988-02-10 Ver Edelstahlwerke Ag Method for manufacturing a hollow body with screw-like or coil-like internal and external contour and device for implementing the method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1973687A (en) * 1932-02-23 1934-09-11 Bolton C Moise Tube mill
US2936019A (en) * 1956-09-10 1960-05-10 Toledo Heater Company Apparatus for producing tube bends

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505623A (en) * 1948-07-15 1950-04-25 Tube Turns Inc Apparatus for manufacture of helical coils of tubing
FR2155827A1 (en) * 1971-10-08 1973-05-25 Sigma Lutin
GB2064392A (en) * 1979-12-10 1981-06-17 Grotnes Metalforming Syst Treatment of metal pipes
DE3311214A1 (en) * 1981-12-16 1984-10-04 Sigma Koncern, Olmütz/Olomouc MOLDING TOOL FOR PRODUCING TWISTED PARTS FROM PIPE BLanks
AT384966B (en) * 1986-06-09 1988-02-10 Ver Edelstahlwerke Ag Method for manufacturing a hollow body with screw-like or coil-like internal and external contour and device for implementing the method

Also Published As

Publication number Publication date
DE58902937D1 (en) 1993-01-21
EP0344570A2 (en) 1989-12-06
EP0344570B1 (en) 1992-12-09
US4951493A (en) 1990-08-28

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