EP0473932A2 - Dispositif pour la fragmentation du copeau intérieur des tuyaux soudés longitudinalement - Google Patents

Dispositif pour la fragmentation du copeau intérieur des tuyaux soudés longitudinalement Download PDF

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Publication number
EP0473932A2
EP0473932A2 EP91112573A EP91112573A EP0473932A2 EP 0473932 A2 EP0473932 A2 EP 0473932A2 EP 91112573 A EP91112573 A EP 91112573A EP 91112573 A EP91112573 A EP 91112573A EP 0473932 A2 EP0473932 A2 EP 0473932A2
Authority
EP
European Patent Office
Prior art keywords
chip
cutting
pipe
pressurized water
axis
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
EP91112573A
Other languages
German (de)
English (en)
Other versions
EP0473932A3 (en
EP0473932B1 (fr
Inventor
Karl-Heinz Becker
Rolf Dipl.-Ing. Krebs
Erich Dipl.-Ing. Gerling
Manfred Dipl.-Ing. Gerber
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.)
Fried Krupp AG Hoesch Krupp
Original Assignee
Mhp Mannesmann Hoesch Prazisrohr GmbH
Hoesch AG
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 Mhp Mannesmann Hoesch Prazisrohr GmbH, Hoesch AG filed Critical Mhp Mannesmann Hoesch Prazisrohr GmbH
Publication of EP0473932A2 publication Critical patent/EP0473932A2/fr
Publication of EP0473932A3 publication Critical patent/EP0473932A3/de
Application granted granted Critical
Publication of EP0473932B1 publication Critical patent/EP0473932B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21C37/0811—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off removing or treating the weld bead

Definitions

  • the invention relates to a device for comminuting the inner chip produced during the internal deburring of longitudinally welded pipes.
  • the inner chip created by the internal deburring remains as a continuous long chip in the tube.
  • This long span is usually caused by printing media, e.g. B. water, emulsion or air, or removed by long brushes, is then twisted at best after exiting the pipe end on shelves or in buckets and caught in balls and must then be done manually or with Magnetic / hook cranes are disposed of and subsequently cut or pressed in order to be used again as scrap in the blast furnace.
  • printing media e.g. B. water, emulsion or air
  • Magnetic / hook cranes are disposed of and subsequently cut or pressed in order to be used again as scrap in the blast furnace.
  • DE 32 19 369-A1 discloses a method and an apparatus for achieving short chips.
  • the chip produced during scraping exerts a transverse force which causes a tool holder to rotate on the cutting means arranged obliquely on this tool holder.
  • the cutting means which are arranged side by side, are used one after the other and thus produce short individual chips.
  • the invention was therefore based on the object of providing a device which can be used for all diameter ranges and which economically enables automatic comminution of the long internal chip into chip scrap which can be used directly in the melt, and which makes the uncontrolled rinsing or brushing with the resulting hazardous work activities unnecessary and inherently unnecessary can be easily integrated into existing production facilities.
  • the device essentially includes a pressurized water rinsing device at the beginning of the pipe and at the end of the pipe a movable chip-catching device, a chip-guiding device, a chip-cutting device and a chip-collecting device, which are arranged directly on the pipe end and next to one another.
  • the rinsed-out long chip can no longer emerge from the pipe end in an uncontrolled manner Ball formation is fed directly to a cutting process and collected as cut scrap in a collecting device. The disposal of the chip scrap is therefore limited to simply replacing a collecting container.
  • This arrangement also allows the device to be used for any pipe diameter, since all tools and devices for comminution are located outside the pipe.
  • the devices which are connected to one another and thus form a closed system make it possible to transport the inner chip from the pipe by means of water pressure through the chip guide device and also through the chip cutting device into the chip scrap collecting device and to dispense with any intermediate handling.
  • the chip guiding device is advantageously designed as a hollow body connecting the chip-catching device and the chip-cutting device, so that there is a sleeve corresponding approximately to the inner cross-section of the tube, which avoids unwanted buckling of the rinsed-out inner chip.
  • Emulsion or air can equally be used as the pressure or flushing medium.
  • the design of the hollow body by means of telescopic tubes enables the guide device to be lengthened or shortened easily and to be adjusted to different tube lengths.
  • the smallest diameter telescopic tube is advantageously connected to the chip catcher and the largest in diameter to the chip cutting device, so that the chip cannot bump at the transition points from one telescope tube to the other during flushing.
  • the design of the chip-catching device as a funnel opening towards the pipe end permits the connection thereof to pipe ends of different diameters, so that a larger size range of pipes can be fixed in the device without modification and subjected to the internal chip comminution process.
  • the conveying speed of the chip and the cutting frequency can be easily determined so that any desired chip scrap length can be achieved.
  • the cutting device in the form of the characterizing part of claim 7 brings about an advantageous guidance and position of the chip during the cutting process without special clamping tools and is extremely robust and resistant to interference.
  • the cutting gap can be easily changed here by a threaded spindle acting on the cutting ring, the distance between the plane of the rotating knives and the plane of the cutting ring edge then changing.
  • the knives are, of course, professionally designed as turning and changing tools, so that long tool life and easy tool changes are guaranteed.
  • the device can advantageously be integrated into the production process within or directly next to an automatic pipe production system, so that the emerging finished pipe is deburred and the inner chip is already shredded ready for transport.
  • a particularly simple solution for a chip collection device is to provide a bucket which is open but otherwise closed to the chip cutting device and which encloses a scrap container which can be exchanged for an empty container and disposed of easily and within a very short time after filling.
  • the device according to the invention shown in FIG. 1 for a better overview without the central part consisting only of transport grids and transfer devices shows the movable chip-catching device 1, which is mounted with its housing 2 on a carriage 3, which in turn is mounted on a guide rail 4 over one of the different pipe lengths adjusted adjustment length 5 can be preset.
  • a chip guide device 8 consisting of telescopic pipes 7a-7f connects on the outlet side in the main axis and is firmly connected to the chip catcher via flange couplings.
  • the telescopic tubes 7a-7f are thus pulled apart depending on the position of the chip catcher 1 within the adjustment length 5.
  • the chip scrap collecting device 14 is shown broken open in the region of its opening 16 facing the chip cutting device 10.
  • the inlet-side beginning of the device according to the invention has a pressurized water flushing device 17, which contains a pressurized water quantity control device, not shown here. This is done with a water pressure of around 30 bar.
  • the pressurized water rinsing device 17 is arranged on a holder 18 so that it can be moved longitudinally over a short distance, so that after roughly pre-setting the housing 2 located at the other end of the device - switched in the opposite direction to the travel function of the chip collection device 14 - the insertion and ejection of the pipes is problem-free he follows.
  • the holder 18 is supported on a base frame 19, the holder and base frame being designed in their storage area as oppositely inclined inclined planes. This is achieved by moving the bracket 18 on the Base frame 19 a height adjustment of the pressurized water flushing device 17 adapted to the respective pipe diameter.
  • FIG. 2 shows the end region of the device according to the invention in the operating state with an inserted and fixed tube 20 with an outside diameter of 114.3 mm and a wall thickness of 3.6 mm.
  • the chip-catching device 1 is moved according to the pipe length and encloses the pipe end 6 with its funnel.
  • the telescopic pipes 7a-7f are extended in accordance with this travel path.
  • FIG. 3 illustrates the operation of the chip cutting device 10 on the basis of a section.
  • the chip expelled by the pressurized water jet emerges from the cutting ring 12 and is cut by the rotating cutter head 13.
  • the cutting cross-section described by the rotating knives 21a-21d here completely covers the cross-section of the cutting ring 13.
  • the cutting ring 13 can be rotated here, so that after sufficient wear of the lower part of the cutting ring, which is essentially stressed during the cutting, its rotation causes a further, not worn cutting ring section can be rotated into the cutting position.
  • the knives are designed as rectangular plates with four cutting edges and can be turned after a cutting edge has worn out.
  • the cut chip scrap falls after the cut into a scrap container (not shown in detail) at the bottom of the chip scrap collecting device 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Disintegrating Or Milling (AREA)
  • Sawing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Processing Of Solid Wastes (AREA)
  • Crushing And Pulverization Processes (AREA)
EP91112573A 1990-09-07 1991-07-26 Dispositif pour la fragmentation du copeau intérieur des tuyaux soudés longitudinalement Expired - Lifetime EP0473932B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4028372 1990-09-07
DE4028372A DE4028372C1 (fr) 1990-09-07 1990-09-07

Publications (3)

Publication Number Publication Date
EP0473932A2 true EP0473932A2 (fr) 1992-03-11
EP0473932A3 EP0473932A3 (en) 1992-06-24
EP0473932B1 EP0473932B1 (fr) 1994-12-07

Family

ID=6413770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91112573A Expired - Lifetime EP0473932B1 (fr) 1990-09-07 1991-07-26 Dispositif pour la fragmentation du copeau intérieur des tuyaux soudés longitudinalement

Country Status (5)

Country Link
EP (1) EP0473932B1 (fr)
AT (1) ATE115021T1 (fr)
DE (2) DE4028372C1 (fr)
ES (1) ES2030640T3 (fr)
GR (1) GR920300079T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110052665A (zh) * 2019-05-08 2019-07-26 燕山大学 一种用于恒底面成型钢管的内毛刺清除装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4237683C2 (de) * 1992-10-01 1996-01-18 Axa Masch Und Armaturen Gmbh Zerkleinerungsvorrichtung für lange Späne
DE4407419C2 (de) * 1994-03-03 1997-03-13 Mannesmann Ag Einrichtung zum Ausspülen und Zerkleinern des Innenspans längsnahtgeschweißter Rohre

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3219369A1 (de) * 1982-05-19 1983-11-24 Mannesmann Ag Verfahren und vorrichtung zur erzielung kurzer spaene bei der innenentgratung von rohren
US4893972A (en) * 1988-11-18 1990-01-16 Pittsburgh Tube Company Cutting tool

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3219369A1 (de) * 1982-05-19 1983-11-24 Mannesmann Ag Verfahren und vorrichtung zur erzielung kurzer spaene bei der innenentgratung von rohren
US4893972A (en) * 1988-11-18 1990-01-16 Pittsburgh Tube Company Cutting tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110052665A (zh) * 2019-05-08 2019-07-26 燕山大学 一种用于恒底面成型钢管的内毛刺清除装置

Also Published As

Publication number Publication date
ES2030640T3 (es) 1995-03-01
DE4028372C1 (fr) 1991-09-12
ATE115021T1 (de) 1994-12-15
GR920300079T1 (en) 1992-12-30
ES2030640T1 (es) 1992-11-16
DE59103775D1 (de) 1995-01-19
EP0473932A3 (en) 1992-06-24
EP0473932B1 (fr) 1994-12-07

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