EP0318905A3 - Method and apparatus for making downpipes - Google Patents

Method and apparatus for making downpipes Download PDF

Info

Publication number
EP0318905A3
EP0318905A3 EP19880119856 EP88119856A EP0318905A3 EP 0318905 A3 EP0318905 A3 EP 0318905A3 EP 19880119856 EP19880119856 EP 19880119856 EP 88119856 A EP88119856 A EP 88119856A EP 0318905 A3 EP0318905 A3 EP 0318905A3
Authority
EP
European Patent Office
Prior art keywords
seamed
downpipes
pipe profile
section
pipe
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
EP19880119856
Other languages
German (de)
Other versions
EP0318905A2 (en
EP0318905B1 (en
Inventor
Peter Emmrich
Hans Marx
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.)
Rheinzink GmbH and Co KG
Original Assignee
Rheinzink 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 Rheinzink GmbH and Co KG filed Critical Rheinzink GmbH and Co KG
Publication of EP0318905A2 publication Critical patent/EP0318905A2/en
Publication of EP0318905A3 publication Critical patent/EP0318905A3/en
Application granted granted Critical
Publication of EP0318905B1 publication Critical patent/EP0318905B1/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
    • 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
    • B21C37/10—Making tubes with riveted seams or with non-welded and non-soldered seams
    • B21C37/101—Making of the seams
    • 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
    • B21C37/10—Making tubes with riveted seams or with non-welded and non-soldered seams

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Vehicle Body Suspensions (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

In a method for making lock-seamed push-in downpipes, the longitudinal edges of pipe profiles prerounded by forming sheet-metal strip blanks of a certain width and length under bending conditions are set on edge, then brought together to form a seamed connection, whereupon the latter is bent over flat onto the outer circumference of the pipe profile. In order to achieve high surface quality of the downpipes, the seamed connection is formed by forming the longitudinal edges of the pipe profile in several sections under bending conditions, using a rotary tool motion, the pipe profile is transported in the delivery direction by the length of the respectively formed section of the seamed connection and, in the production of the last section of the seamed connection, the pipe profile is widened in this section.
EP88119856A 1987-12-02 1988-11-29 Method and apparatus for making downpipes Expired - Lifetime EP0318905B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3740750 1987-12-02
DE19873740750 DE3740750A1 (en) 1987-12-02 1987-12-02 METHOD AND DEVICE FOR PRODUCING RAINFALL PIPES

Publications (3)

Publication Number Publication Date
EP0318905A2 EP0318905A2 (en) 1989-06-07
EP0318905A3 true EP0318905A3 (en) 1990-09-19
EP0318905B1 EP0318905B1 (en) 1994-06-15

Family

ID=6341676

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119856A Expired - Lifetime EP0318905B1 (en) 1987-12-02 1988-11-29 Method and apparatus for making downpipes

Country Status (4)

Country Link
EP (1) EP0318905B1 (en)
AT (1) ATE107203T1 (en)
DE (2) DE3740750A1 (en)
DK (1) DK169907B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991016156A1 (en) * 1990-04-12 1991-10-31 Die-Craft Engineering Pty. Ltd Tapered conduit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1408232A (en) * 1917-05-12 1922-02-28 Frank H Stolp Method of forming sheet metal
US2644416A (en) * 1949-02-02 1953-07-07 Oldberg Mfg Company Apparatus for forming tubes
GB867915A (en) * 1956-06-02 1961-05-10 Metal Developments Ltd Improvements relating to columns
FR2484874A1 (en) * 1980-06-18 1981-12-24 Krueckels Gerhard Profiling machine for finished or semi-finished prods. - has transversely divided profiling tool, with adjuster for relatively movable sections

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1408232A (en) * 1917-05-12 1922-02-28 Frank H Stolp Method of forming sheet metal
US2644416A (en) * 1949-02-02 1953-07-07 Oldberg Mfg Company Apparatus for forming tubes
GB867915A (en) * 1956-06-02 1961-05-10 Metal Developments Ltd Improvements relating to columns
FR2484874A1 (en) * 1980-06-18 1981-12-24 Krueckels Gerhard Profiling machine for finished or semi-finished prods. - has transversely divided profiling tool, with adjuster for relatively movable sections

Also Published As

Publication number Publication date
DK671488A (en) 1989-06-03
DE3740750A1 (en) 1989-06-15
ATE107203T1 (en) 1994-07-15
EP0318905A2 (en) 1989-06-07
DK671488D0 (en) 1988-12-01
EP0318905B1 (en) 1994-06-15
DK169907B1 (en) 1995-04-03
DE3850225D1 (en) 1994-07-21

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