FR2349374A1 - Detecting and removing cross welds from metal tube - generating signals to detect welds and actuate cutters - Google Patents

Detecting and removing cross welds from metal tube - generating signals to detect welds and actuate cutters

Info

Publication number
FR2349374A1
FR2349374A1 FR7612766A FR7612766A FR2349374A1 FR 2349374 A1 FR2349374 A1 FR 2349374A1 FR 7612766 A FR7612766 A FR 7612766A FR 7612766 A FR7612766 A FR 7612766A FR 2349374 A1 FR2349374 A1 FR 2349374A1
Authority
FR
France
Prior art keywords
welds
detecting
metal tube
cutters
actuate
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.)
Withdrawn
Application number
FR7612766A
Other languages
French (fr)
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.)
British Steel Corp
Original Assignee
British Steel Corp
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 British Steel Corp filed Critical British Steel Corp
Priority to FR7612766A priority Critical patent/FR2349374A1/en
Publication of FR2349374A1 publication Critical patent/FR2349374A1/en
Withdrawn legal-status Critical Current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
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
    • 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
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B26D5/30—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier
    • B26D5/32—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier with the record carrier formed by the work itself

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

In removing cross welds from a metal tube moving continuously in a path, signals representative of the linear movement of the tube are generated from a pulse generator. On detecting the presence of cross welds in the tube the signal is passed to a counter which, after receiving the required number of singles, actuates a cutter to remove a length of tube containing the detected cross-weld. In removing cross welds from steel strip, the tail end of one coil of strip being butt welded to another coil and the strip being conveyed in this way to a forming and welding line.
FR7612766A 1976-04-29 1976-04-29 Detecting and removing cross welds from metal tube - generating signals to detect welds and actuate cutters Withdrawn FR2349374A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7612766A FR2349374A1 (en) 1976-04-29 1976-04-29 Detecting and removing cross welds from metal tube - generating signals to detect welds and actuate cutters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7612766A FR2349374A1 (en) 1976-04-29 1976-04-29 Detecting and removing cross welds from metal tube - generating signals to detect welds and actuate cutters

Publications (1)

Publication Number Publication Date
FR2349374A1 true FR2349374A1 (en) 1977-11-25

Family

ID=9172464

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7612766A Withdrawn FR2349374A1 (en) 1976-04-29 1976-04-29 Detecting and removing cross welds from metal tube - generating signals to detect welds and actuate cutters

Country Status (1)

Country Link
FR (1) FR2349374A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228054A2 (en) * 1985-12-25 1987-07-08 Yoshida Kogyo K.K. Method and apparatus for cutting a chain of elongate products

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309343A (en) * 1940-05-15 1943-01-26 Republic Steel Corp Defect detecting and removing apparatus
FR1298100A (en) * 1961-08-18 1962-07-06 Timken Roller Bearing Co Apparatus for marking defects in a wire and rejecting defective parts
US3290167A (en) * 1963-07-01 1966-12-06 American Mach & Foundry Motion responsive flaw marking apparatus and method
DE1574138A1 (en) * 1967-09-02 1971-07-29 Siemens Ag Process for magnetic identification and querying of specific points on goods in transit
FR2160609A1 (en) * 1971-11-19 1973-06-29 Nippon Kokan Kk Locating welds in strip - in a continuous strip rolling line
US3760667A (en) * 1969-01-15 1973-09-25 Black Clawson Co Veneer defect detector and clipper control
US3892153A (en) * 1973-01-18 1975-07-01 Mitsubishi Rayon Co System for cutting pieces from a traveling strip of sheet material

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309343A (en) * 1940-05-15 1943-01-26 Republic Steel Corp Defect detecting and removing apparatus
FR1298100A (en) * 1961-08-18 1962-07-06 Timken Roller Bearing Co Apparatus for marking defects in a wire and rejecting defective parts
US3290167A (en) * 1963-07-01 1966-12-06 American Mach & Foundry Motion responsive flaw marking apparatus and method
DE1574138A1 (en) * 1967-09-02 1971-07-29 Siemens Ag Process for magnetic identification and querying of specific points on goods in transit
US3760667A (en) * 1969-01-15 1973-09-25 Black Clawson Co Veneer defect detector and clipper control
FR2160609A1 (en) * 1971-11-19 1973-06-29 Nippon Kokan Kk Locating welds in strip - in a continuous strip rolling line
US3892153A (en) * 1973-01-18 1975-07-01 Mitsubishi Rayon Co System for cutting pieces from a traveling strip of sheet material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228054A2 (en) * 1985-12-25 1987-07-08 Yoshida Kogyo K.K. Method and apparatus for cutting a chain of elongate products
EP0228054A3 (en) * 1985-12-25 1988-05-04 Yoshida Kogyo K.K. Method and apparatus for cutting a chain of elongate products

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Legal Events

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