FR2345240A1 - Mass prodn. of flat coils of tube - made from vertical stack of tubes in machine fitted with two rows of driven mandrels - Google Patents

Mass prodn. of flat coils of tube - made from vertical stack of tubes in machine fitted with two rows of driven mandrels

Info

Publication number
FR2345240A1
FR2345240A1 FR7609241A FR7609241A FR2345240A1 FR 2345240 A1 FR2345240 A1 FR 2345240A1 FR 7609241 A FR7609241 A FR 7609241A FR 7609241 A FR7609241 A FR 7609241A FR 2345240 A1 FR2345240 A1 FR 2345240A1
Authority
FR
France
Prior art keywords
tubes
mandrel
stack
rails
flat coils
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
FR7609241A
Other languages
French (fr)
Other versions
FR2345240B1 (en
Inventor
Andre Brisseaux
Claude Molina
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.)
Rio Tinto France SAS
Original Assignee
Aluminium Pechiney SA
Societe de Vente de lAluminium Pechiney 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 Aluminium Pechiney SA, Societe de Vente de lAluminium Pechiney SA filed Critical Aluminium Pechiney SA
Priority to FR7609241A priority Critical patent/FR2345240A1/en
Publication of FR2345240A1 publication Critical patent/FR2345240A1/en
Application granted granted Critical
Publication of FR2345240B1 publication Critical patent/FR2345240B1/fr
Granted 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
    • B21D11/07—Making serpentine-shaped articles by bending essentially in one plane

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

Tubes are bent in alternate directions for the mass prodn. of flat coils with an undulating pattern consisting of a straight section followed by a 180 degrees bend and another straight section; this pattern is repeated to obtain a long, flat coil. The process involves forming a vertical stack of tubes with their axes horizontal in a machine fitted with two rails which are driven outwards. Each rail is fitted with a row of mandrels located on each side of the stack; the number of mandrels corresponds with the number of bends required, plus two mandrels; and each mandrel has a vertical row of grooves matching the number of tubes in the stack. The mandrel rails are driven horizontally to bend the tubes. Each mandrel is fitted on a holder driven along the mandrel rails by a motor, spindle, and a rack and pinion; movements of the mandrel rails and of the mandrel holder are synchronised to obtain a stack of flat coils in one machine cycle. Method allows high speed mass prodn. of long, flat coils contg. a large number of 180 degrees bends.
FR7609241A 1976-03-23 1976-03-23 Mass prodn. of flat coils of tube - made from vertical stack of tubes in machine fitted with two rows of driven mandrels Granted FR2345240A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7609241A FR2345240A1 (en) 1976-03-23 1976-03-23 Mass prodn. of flat coils of tube - made from vertical stack of tubes in machine fitted with two rows of driven mandrels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7609241A FR2345240A1 (en) 1976-03-23 1976-03-23 Mass prodn. of flat coils of tube - made from vertical stack of tubes in machine fitted with two rows of driven mandrels

Publications (2)

Publication Number Publication Date
FR2345240A1 true FR2345240A1 (en) 1977-10-21
FR2345240B1 FR2345240B1 (en) 1978-08-25

Family

ID=9171160

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7609241A Granted FR2345240A1 (en) 1976-03-23 1976-03-23 Mass prodn. of flat coils of tube - made from vertical stack of tubes in machine fitted with two rows of driven mandrels

Country Status (1)

Country Link
FR (1) FR2345240A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108620467A (en) * 2018-02-05 2018-10-09 青岛海尔特种电冰柜有限公司 Inner cool tube Automatic-drawing equipment and processing method
US11456652B2 (en) * 2014-08-25 2022-09-27 Borgwarner Inc. Wire forming apparatus for electric machine winding

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2223099A1 (en) * 1973-03-26 1974-10-25 Cometube Method of mfg. tubular metal framework - involves bending tube at multiple points, with flattening at gripping point

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2223099A1 (en) * 1973-03-26 1974-10-25 Cometube Method of mfg. tubular metal framework - involves bending tube at multiple points, with flattening at gripping point

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11456652B2 (en) * 2014-08-25 2022-09-27 Borgwarner Inc. Wire forming apparatus for electric machine winding
CN108620467A (en) * 2018-02-05 2018-10-09 青岛海尔特种电冰柜有限公司 Inner cool tube Automatic-drawing equipment and processing method
CN108620467B (en) * 2018-02-05 2024-02-20 青岛海尔特种电冰柜有限公司 Automatic stretching equipment and processing method for inner cooling pipe

Also Published As

Publication number Publication date
FR2345240B1 (en) 1978-08-25

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Legal Events

Date Code Title Description
ST Notification of lapse