EP0674955A1 - Dispositif pour gégorger et casser le copeau interne de tubes soudés en direction de la longueur - Google Patents

Dispositif pour gégorger et casser le copeau interne de tubes soudés en direction de la longueur Download PDF

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Publication number
EP0674955A1
EP0674955A1 EP95250022A EP95250022A EP0674955A1 EP 0674955 A1 EP0674955 A1 EP 0674955A1 EP 95250022 A EP95250022 A EP 95250022A EP 95250022 A EP95250022 A EP 95250022A EP 0674955 A1 EP0674955 A1 EP 0674955A1
Authority
EP
European Patent Office
Prior art keywords
chip
channel
flushing
drum
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
EP95250022A
Other languages
German (de)
English (en)
Other versions
EP0674955B1 (fr
Inventor
Erich Gerling
Rolf Krebs
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0674955A1 publication Critical patent/EP0674955A1/fr
Application granted granted Critical
Publication of EP0674955B1 publication Critical patent/EP0674955B1/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
    • B21C37/30—Finishing tubes, e.g. sizing, burnishing

Definitions

  • the invention relates to a device for rinsing and crushing the inner chip formed during the internal deburring of longitudinally welded pipes according to the preamble of the main claim.
  • the outer chip that arises from the external deburring is relatively easy to handle and, due to its accessibility and the available unlimited working space, it can be guided into and removed from scrap buckets or can also be fed to a chopper station, for example, via guide channels.
  • a generic device for crushing the inner chip can be found in DE 40 28 372 B1.
  • This device consists of a pressurized water rinsing device arranged at the beginning of the pipe for rinsing out the inner chip, a chip catching device arranged behind the pipe end, a chip guiding device connecting it and a chip cutting device, and a chip scrap collecting device.
  • the chip guide device preferably consists of telescopic pipes, so that the guide can be adjusted to different pipe lengths in a simple manner.
  • the known comminution device is usually linked to the welding line. This means that the rinsing process must run in time with the individual tube.
  • the known rinsing device requires a total cycle time of 7-8 seconds per tube for rinsing.
  • the usual shortest pipe length to be driven is approx. 7 m, since the possible shortening or lengthening of the chip guidance device is limited.
  • the maximum possible pipe welding speed is approx. 40 m / min. This means that in the known device there is a limit for the maximum welding speed and for the shortest pipe length to be rinsed out.
  • up to two-digit systems have also been implemented in order to distribute the required rinsing time over several pipes in order to increase the welding speed.
  • this solution requires a considerable amount of mechanical engineering and high investment costs.
  • the object of the invention is to provide a cost-effective device for rinsing and crushing the inner chip produced during the internal deburring of longitudinally welded pipes, with which, in conjunction with the welding line, the rinsing process, even at welding speeds greater than 40 m per minute and individual pipe lengths of less than 7 m can be carried out at the same time as the individual pipe lengths.
  • the non-productive times during the rinsing process are distributed over several drum cycles.
  • four longitudinally arranged channels with a U-shaped cross section are arranged in the jacket area, each offset by 90 degrees.
  • One of them is in the stop position of the rotating device, preferably the one in the 12 o'clock position, which is coaxial with the flushing and chip-catching device.
  • the single tube is thrown into the channel located at the 3 o'clock position. As the drum continues to rotate, the individual tube is tensioned.
  • the tensioning device opens so that the cleaned individual tube runs out of the drum at about 6 o'clock position and can be transported further via a conventional transport device.
  • the task can be done in the 9 o'clock position and the delivery between the 3 and 6 o'clock position.
  • the chip-catching device is arranged in a stationary manner. Since the individual pipes to be cleaned are clamped in the area of the flushing device, will rarely extend the pipe end to the chip catcher. In order to ensure that the chip that shoots out through the pressurized water flushing jet reaches the chip catcher, the respective channel is covered in the end area, so that a closed channel is created.
  • the covering can take place in such a way that a cover plate which can be raised and lowered is arranged on the longitudinal beam of the frame receiving the rotating device. The circumference of this cover plate is such that the gutter lying in the rinsing position can be covered.
  • the partial cover can also be designed in such a way that a pivotable, individually actuated cover plate is arranged on each channel. It is pivoted back in the loading position, as well as in the unloading position. In between, the channel area in question is closed, so that the chip is guided to the chip catcher without the possibility of breaking out.
  • FIG. 1 shows a basic illustration of a device according to the invention in a longitudinal view.
  • the essential elements of this device are a frame with two gate-like spars 1, 2 and longitudinal members 3, 4 connecting them.
  • a movable pressurized water flushing device consisting of a nozzle head 5 and a high-pressure hose 6 as well as a stationary chip-catching device 7 and a chip-guiding device 8 are arranged.
  • An arrow 9 indicates the supply of pressurized water.
  • the already known chopper station 9 connects to the chip guiding device 8, which is designed here in a simple manner as a tube. The details of the chopper station are omitted here and reference is made to DE 40 28 372 in this regard.
  • the resulting chips 10 are collected in a scrap bucket 11, for example, or otherwise disposed of.
  • a drum-like rotating device 12 is arranged within the frame between the flushing device 5, 6 and the chip-catching device 7. This consists, for example, of an axis 15 held in bearings 13, 14 and disks 16 - 18 fastened thereon.
  • a total of four shell-like channels 19 - 22 are provided, offset by 90 degrees around the circumference.
  • These channels 19 - 22 have a U-shaped cross section with an opening width that is sufficient in order to be able to accommodate the single pipe 23 to be cleaned with the largest diameter.
  • the length of the channels 19-22 is dimensioned such that the longest individual tube 24 to be cleaned, shown in broken lines here, is always shorter than the channel 19-22, so that there is still a distance between the front end 25 of the tube 24 and the chip-catching device 7 remains. So that the individual tube 23, 24 does not slip axially during the rinsing process, 12 clamping devices are provided in the front end region of the drum-like rotating device. Details of this are shown in FIG. 2. In the case of shorter tubes 23, it is also necessary to cover the open area of the channel 19-22 between the tube start and the chip-catching device 7. This ensures that the chip cannot shoot out of the channel 19 - 22 during the rinsing process, but rather is fed to the chip catcher 7.
  • a lifting and lowering cover plate 26 is arranged on one of the side members 4 of the frame.
  • the lifting and lowering takes place via a piston-cylinder unit 27 which is articulated on the side member 4 on the one hand and on the cover plate 26 on the other hand. Additional articulated levers 28-30 are provided to support the cover plate 26.
  • FIG. 2 shows further details of the device according to the invention in a front view.
  • the drum-like rotating device 12 is rotated counterclockwise, here indicated by an arrow.
  • the clamping devices 32-35 which in this embodiment consist of two scissor-like levers, can be clearly seen in this illustration.
  • the roll-out path of the welding line is indicated, on which the individual tubes 23 which have already been cut off are transported.
  • the individual tubes 23 are fed to the projector 37 via a transverse transport 36.
  • the latter places the single tube 23 in the groove 22 of the drum-like rotating device 12, which is in the 3 o'clock position.
  • the groove in the groove 22 becomes Tube clamped.
  • the scissor-like arms of the clamping device 35 are pivoted and the tube projecting beyond the channel 22 is fixed.
  • the cover plate 26 is pressed down, so that the channel 22, which is open per se, is covered up to the chip-catching device 7.
  • pressurized water is injected into the individual pipe 23 via the nozzle 5 and the endless chip or chip residue is rinsed out and fed to the chopper 9 via the chip catcher 7 and chip guide device 8.
  • the channel 22 is pivoted to the 9 o'clock position. This is followed by opening of the tensioning device 35, so that the individual tube 29 rolls out of the channel 22 when it is turned further.
  • a grate 38 catches the pipe, whereby it is fed through the inclined position of a transport device.
  • it is a chain conveyor 39 which is provided with a plurality of drivers 40.
  • FIG. 3 shows, in a view comparable to FIG. 2, another type of loading and unloading of the individual tubes 23 to be cleaned.
  • the individual tube 23 is inserted into the channel 20 located at the 9 o'clock position.
  • the drum-like rotating device In this example, 12 rotates clockwise, as indicated here by arrow 41.
  • the rinsing process takes place again in the 12 o'clock position, while the delivery of the cleaned tube 23 takes place approximately in the 6 o'clock position.
  • a carrier grate 42 is arranged in the lower region of the rotating device 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Cleaning In General (AREA)
EP95250022A 1994-03-03 1995-01-27 Dispositif pour gégorger et casser le copeau interne de tubes soudés en direction de la longueur Expired - Lifetime EP0674955B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4407419A DE4407419C2 (de) 1994-03-03 1994-03-03 Einrichtung zum Ausspülen und Zerkleinern des Innenspans längsnahtgeschweißter Rohre
DE4407419 1994-03-03

Publications (2)

Publication Number Publication Date
EP0674955A1 true EP0674955A1 (fr) 1995-10-04
EP0674955B1 EP0674955B1 (fr) 1997-06-04

Family

ID=6511986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95250022A Expired - Lifetime EP0674955B1 (fr) 1994-03-03 1995-01-27 Dispositif pour gégorger et casser le copeau interne de tubes soudés en direction de la longueur

Country Status (3)

Country Link
EP (1) EP0674955B1 (fr)
AT (1) ATE153886T1 (fr)
DE (2) DE4407419C2 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD102605A5 (fr) * 1972-03-29 1973-12-20
US4893972A (en) * 1988-11-18 1990-01-16 Pittsburgh Tube Company Cutting tool
DE4028372C1 (fr) * 1990-09-07 1991-09-12 Hoesch Ag, 4600 Dortmund, De

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469295A (en) * 1967-04-13 1969-09-30 Koppy Tool Corp Workpiece indexing and feed apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD102605A5 (fr) * 1972-03-29 1973-12-20
US4893972A (en) * 1988-11-18 1990-01-16 Pittsburgh Tube Company Cutting tool
DE4028372C1 (fr) * 1990-09-07 1991-09-12 Hoesch Ag, 4600 Dortmund, De

Also Published As

Publication number Publication date
ATE153886T1 (de) 1997-06-15
EP0674955B1 (fr) 1997-06-04
DE4407419A1 (de) 1995-09-07
DE59500277D1 (de) 1997-07-10
DE4407419C2 (de) 1997-03-13

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