EP0473932B1 - 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

Info

Publication number
EP0473932B1
EP0473932B1 EP91112573A EP91112573A EP0473932B1 EP 0473932 B1 EP0473932 B1 EP 0473932B1 EP 91112573 A EP91112573 A EP 91112573A EP 91112573 A EP91112573 A EP 91112573A EP 0473932 B1 EP0473932 B1 EP 0473932B1
Authority
EP
European Patent Office
Prior art keywords
chip
cutting
pipe
chips
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.)
Expired - Lifetime
Application number
EP91112573A
Other languages
German (de)
English (en)
Other versions
EP0473932A2 (fr
EP0473932A3 (en
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
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 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

Links

Images

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, according to the preamble of claim 1.
  • the inner chip created by the internal deburring remains in the tube as a continuous long chip.
  • 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.
  • notch rollers used for this purpose can, however, damage the inner surface of the pipe or also deep notches, which lead to the minimum wall thickness in the seam area being undercut and provoking stress peaks and notch effects in the event of later internal pressure loads.
  • DE 32 19 369-A1 discloses a method and a device 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 creating a device which can be used for all diameter ranges and which economically enables automatic comminution of the long inner chip into chip scrap which can be used directly in the melt, 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 contains 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 at 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, and is caused by the chip guide device without significant kinking or Ball formation is fed directly to a cutting process and collected as cut scrap in a collecting device.
  • the disposal of the scrap metal is thus 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 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 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 diameter to the chip cutting device, so that the chip cannot bump at the transition points from one telescope tube to the other during the flushing.
  • the design of the chip catcher as a funnel opening towards the pipe end allows the connection of the same to pipe ends of different diameters, so that a larger range of dimensions 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 embodiment of claim 4 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 easily be 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.
  • 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 cutting device 10 On the outlet side, there follows the chip cutting device 10 with its speed-adjustable drive 11, the cutting ring 12 and the rotating cutter head 13, and the chip scrap collecting device 14, which is designed as a bucket and which is provided with a lid 15 which can be opened to remove a scrap container (not shown).
  • the chip scrap collecting device 14 is shown broken away for better illustration of the cutter head 13 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 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 bracket 18 is supported on a base frame 19, the bracket and base frame being formed 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 is rotatable 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, on the bottom of the chip scrap collecting device 14.

Claims (7)

  1. Dispositif pour la fragmentation des copeaux internes créés lors du grattage interne de tubes (20) soudés longitudinalement, à l'amont duquel peut être monté, en étant positionné, un tube individuel (20) comportant encore les copeaux internes raclés après séparation de la ligne de tube réalisée en continu, et dans lequel un dispositif de pulvérisation d'eau sous pression (17) est agencé au début du tube pour évacuer par pulvérisation les copeaux internes, caractérisé en ce que directement derrière la fin du tube (6) sont agencés en étant raccordés ensemble :
    - un dispositif mobile de récupération de copeaux (1) réalisé sous forme d'un entonnoir s'ouvrant vers la fin du tube (6) ;
    - un dispositif de guidage de copeaux (8) constitué de tubes télescopiques (7a-7f) ;
    - un dispositif de découpe de copeaux (10) qui est relié au dispositif de récupération de copeaux (1) par l'intermédiaire du dispositif de guidage de copeaux (8) réalisé sous forme d'un corps creux ; et
    - un dispositif de réception de déchets de copeaux (14).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que le dispositif de pulvérisation d'eau sous pression (17) est agencé sur un élément de maintien mobile (18).
  3. Dispositif selon les revendications 1 et 2,
    caractérisé en ce que le dispositif de pulvérisation d'eau sous pression (17) comporte un dispositif de réglage de la quantité d'eau sous pression.
  4. Dispositif selon l'une des revendications 1 à 3,
    caractérisé en ce que le dispositif de découpe de copeaux (10) comporte une bague de découpe (12) entourant les copeaux entrants et une tête de coupe rotative (13) présentant des lames amovibles (21a-21d), l'axe de la tête de coupe (13) étant agencé de façon parallèle et décalée par rapport à l'axe de la bague de découpe (12) et la section transversale de découpe décrite par les lames rotatives (21a-21d) recouvrant au moins partiellement la section transversale de la bague de découpe (12).
  5. Dispositif selon la revendication 4,
    caractérisé en ce que l'entraînement (11) de la tête de coupe rotative (13) est réglable en ce qui concerne la vitesse de rotation.
  6. Dispositif selon l'une des revendications 1 à 5,
    caractérisé en ce que le dispositif de récupération de copeaux (1), le dispositif de guidage de copeaux (8) et le dispositif de découpe de copeaux (10) présentent un axe principal commun (9) et cet axe principal (9) est agencé de façon parallèle et dans une position de jonction par rapport à l'axe d'une ligne d'élaboration de tubes.
  7. Dispositif selon l'une des revendications 1 à 6,
    caractérisé en ce que le dispositif de réception de déchets de copeaux (14) est réalisé sous forme d'une caisse munie d'une ouverture (16) vers le dispositif de découpe de copeaux et fermée pour le reste.
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 EP0473932A2 (fr) 1992-03-11
EP0473932A3 EP0473932A3 (en) 1992-06-24
EP0473932B1 true 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)

Families Citing this family (3)

* 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
CN110052665B (zh) * 2019-05-08 2020-06-02 燕山大学 一种用于恒底面成型钢管的内毛刺清除装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3219369C2 (de) * 1982-05-19 1984-06-07 Dr.tech. Ernst Linsinger & Co GmbH, 4662 Steyrermühl Verfahren und Vorrichtung zur Erzielung kurzer Späne bei der Innenentgratung von Rohren
US4893972A (en) * 1988-11-18 1990-01-16 Pittsburgh Tube Company Cutting tool

Also Published As

Publication number Publication date
EP0473932A2 (fr) 1992-03-11
DE59103775D1 (de) 1995-01-19
ES2030640T1 (es) 1992-11-16
ATE115021T1 (de) 1994-12-15
EP0473932A3 (en) 1992-06-24
ES2030640T3 (es) 1995-03-01
GR920300079T1 (en) 1992-12-30
DE4028372C1 (fr) 1991-09-12

Similar Documents

Publication Publication Date Title
DE69821460T2 (de) Schleifverfahren und Vorrichtung
EP2543452B1 (fr) Dispositif de pliage pour pièces usinées en forme de tige
DE4418603C2 (de) Drahtführungsvorrichtung für eine funkenerosive Drahtschneidemaschine
EP2647457B1 (fr) Machine de séparation de sections de pièces à usiner cylindriques ou en forme de tige
WO2009059776A1 (fr) Machine d'usinage laser comportant des moyens pour mouiller et/ou refroidir la paroi interne d'un tube et procédé d'usinage d'un tube au moyen d'une telle machine
CH709642B1 (de) Schleuderstation mit mindestens einer Druckluftreinigungsanordnung zum Entfernen einer Bearbeitungsflüssigkeit von einem Werkstück.
EP1617964B1 (fr) Dispositif servant a nettoyer une tuyere a gaz d'un chalumeau de soudage
DE19963416C1 (de) Vorrichtung und Verfahren zum Einführen einer Bearbeitungselektrode in ein Elektrodenlaufsystem einer Funkenerosionsmaschine
EP0473932B1 (fr) Dispositif pour la fragmentation du copeau intérieur des tuyaux soudés longitudinalement
CH682380A5 (de) Verfahren und Vorrichtung zum Aussenrundschleifen eines zylindrischen Werkstückes.
EP1897646B1 (fr) Dispositif de suppression de bavures d'oxygène sur des pièces à usiner
WO2012110022A2 (fr) Dispositif de découpe à jet d'eau et procédé de découpe à jet d'eau pour le traitement de pièces tubulaires
EP3511083B1 (fr) Dispositif et procédé d'enroulement d'une bande métallique
EP1238736B1 (fr) Dispositif d'évacuation et de briser de copeaux
EP0814922B1 (fr) Installation pour le sectionnement de plusieurs longueurs de fils dans un echeveau de fil
DE4332008C2 (de) Schneidvorrichtung für dünnwandige Rohre
EP0045733A2 (fr) Dispositif pour enlever la bavure extérieure de tubes soudés longitudinalement
EP0674955B1 (fr) Dispositif pour gégorger et casser le copeau interne de tubes soudés en direction de la longueur
DE3706550C2 (de) Verfahren zum Auswerfen des Abfallstückes des äußeren Endes einer Hülse aus einer Hülsenschneidmaschine sowie Vorrichtung zur Durchführung des Verfahrens
EP1098728B1 (fr) Procede et dispositif pour guider et soutenir une fine tole ou un mince ruban de metal
DE2719334C2 (de) Vorrichtung zum axialen Zu- oder Abführen zu oder aus einer Bearbeitungseinrichtung und zum Ausrichten und/oder Vereinzeln von durch einen radialen Stoßspalt geschlitzten Ringen
DE19907740B4 (de) Verfahren zum Abtrennen eines Rohrstückes von einem zylindrischen Rohr, sowie einer Abtrennvorrichtung zur Durchführung des Verfahrens
DE1402348C (de) Maschine zum Verringern des Quer^ Schnitts von stangenfömigem Gut
DE3937913C1 (en) Radial rolling press - has rolling mandrel with roll pass defined by upper and lower mandrel plates
DE1402348A1 (de) Maschine zum Verringern des Querschnitts von stangenfoermigem Gut

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

ITCL It: translation for ep claims filed

Representative=s name: RICCARDI SERGIO & CO.

GBC Gb: translation of claims filed (gb section 78(7)/1977)
EL Fr: translation of claims filed
AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

TCNL Nl: translation of patent claims filed
17P Request for examination filed

Effective date: 19920630

17Q First examination report despatched

Effective date: 19930510

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: FRIED. KRUPP AG HOESCH-KRUPP

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MHP MANNESMANN HOESCH PRAEZISROHR GMBH

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19941207

Ref country code: DK

Effective date: 19941207

Ref country code: BE

Effective date: 19941207

Ref country code: NL

Effective date: 19941207

REF Corresponds to:

Ref document number: 115021

Country of ref document: AT

Date of ref document: 19941215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59103775

Country of ref document: DE

Date of ref document: 19950119

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2030640

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950307

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950314

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19950731

Ref country code: CH

Effective date: 19950731

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19950731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080726

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20091001

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20090723

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20100726

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20100805

Year of fee payment: 20

Ref country code: DE

Payment date: 20100723

Year of fee payment: 20

Ref country code: AT

Payment date: 20100714

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20100722

Year of fee payment: 20

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20091001

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59103775

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59103775

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20110725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20110725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20110727

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20130801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20110727