EP2532449A2 - Dispositif et procédé destinés au laminage d'ébauches de tubes - Google Patents

Dispositif et procédé destinés au laminage d'ébauches de tubes Download PDF

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Publication number
EP2532449A2
EP2532449A2 EP12004330A EP12004330A EP2532449A2 EP 2532449 A2 EP2532449 A2 EP 2532449A2 EP 12004330 A EP12004330 A EP 12004330A EP 12004330 A EP12004330 A EP 12004330A EP 2532449 A2 EP2532449 A2 EP 2532449A2
Authority
EP
European Patent Office
Prior art keywords
tube
feed
mandrel bar
planetary
rolling mill
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
EP12004330A
Other languages
German (de)
English (en)
Other versions
EP2532449A3 (fr
EP2532449B1 (fr
Inventor
Thomas Dr. Winterfeldt
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.)
SMS Group GmbH
Original Assignee
SMS Meer 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 SMS Meer GmbH filed Critical SMS Meer GmbH
Publication of EP2532449A2 publication Critical patent/EP2532449A2/fr
Publication of EP2532449A3 publication Critical patent/EP2532449A3/fr
Application granted granted Critical
Publication of EP2532449B1 publication Critical patent/EP2532449B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/06—Rolling hollow basic material, e.g. Assel mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • B21B25/02—Guides, supports, or abutments for mandrels, e.g. carriages or steadiers; Adjusting devices for mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/42—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for step-by-step or planetary rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/18—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills
    • B21B13/20—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills for planetary rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs

Definitions

  • the invention relates firstly to a device for rolling in front of tube billets with a planetary cross rolling mill, with a feed bed, with a tube feed, with a Rohrluppen from the feed bed, starting by the planetary rolling mill pushing Rohrluppenvorschub having at least one feed apparatus, with a mandrel bar and with a mandrel bar holder wherein the tube feed has an axial tube feed conveyor that axially conveys a tube blank into a supply position provided axially behind the mandrel bar holder, and wherein the feed apparatus is disposed between the planetary cross rolling mill and the mandrel bar holder.
  • the invention relates, on the other hand, to a method for rolling tube blanks in a planetary cross rolling mill, in which the tube blanks are fed continuously into the planetary cross rolling mill, wherein two alternating feed devices push the tube blanks into the planetary cross rolling mill.
  • the invention relates to a method for rolling tube blanks in a planetary cross rolling mill, in which the tube blanks are fed separately from each other the planetary cross rolling mill.
  • the device comprises a first and an axially spaced therefrom arranged second holding device for the mandrel bar, which are independently radially engageable with the mandrel rod, and a first and a second feed device for the tube blank, which can be adjusted independently of each other radially to the tube blanks and with this in the feed direction and / or against this are displaced.
  • a device for pushing a new tube blank onto the rear end of the mandrel bar held in rolling position during rolling is provided with a preceding tube blank, wherein the movement of the holding devices and the feed devices are arranged in such a way that the rear end of the preceding and the front end the following tube assembly can be supplied to the roll gap abutting each other, wherein the feed device has freely rotatably mounted chucks around the tube longitudinal axis.
  • a disadvantage of generic continuously operating planetary cross rolling mills is the limited available stroke of the tube blank feed devices, which are usually designed as forward and backward movable feed slide. Due to the limited stroke of the feed slide, there is a frequent change of the feed slide engaged with the respective tube blank. This frequent change of the feed carriages, which are alternately engaged with the tube blank, often leads to a critical, non-uniform feed movement, which can adversely affect the quality of the finished rolled tube. In this case, a rolling process during copper rolling should be mentioned in particular, which is very sensitive in this regard and, in contrast, is particularly prone to failure.
  • a device for rolling tube blanks which comprises a planetary cross rolling mill, a feed bed, a tube feed, a tube feed advancing the tube blanks from the feed bed by the planetary cross rolling mill, comprising at least one feed apparatus, a mandrel bar and a mandrel bar holder, wherein the tube feed comprises an axial tube feed conveyor which axially conveys a tube blank to a supply position provided axially behind the mandrel bar holder, the feed apparatus being disposed between the planetary cross rolling mill and mandrel bar holder and wherein the device is characterized in that the feed apparatus comprises a plunger.
  • each tube blank can be supplied to the planetary cross rolling mill individually and without jerking in a rolling process in which the tube blanks are conveyed continuously, in particular continuously, to the feed bed. This is achieved in that each of the tube blanks can be pushed individually by means of the plunger in the planetary cross rolling mill, although the rolling device is continuously charged with tube blanks.
  • pluri in the context of the invention describes any means by which to be rolled tube billets can be individually pushed into a nip of a planetary cross rolling mill by the plunger engages a tube billet in front of head and collides.
  • a particularly important embodiment provides that the plunger is radially displaceable, whereby advantageously a return stroke of the planetary cross rolling mill immediately upstream feed apparatus is possible, even if a tube blank is already in the ready position.
  • the next tube blank can be fed axially to the feed bed and at the same time immediately threaded or pushed onto the mandrel rod from behind, whereby a standstill time with suitable process control, if appropriate, can be at least halved compared to the prior art.
  • the mandrel always remains in a protective gas atmosphere of the rolling device, whereby the mandrel is thermally less stressed. As a result, the life of the mandrel bar can be significantly increased.
  • a ram of a Rohrluppenein concernsers the present device comprises a tubular body and the tubular body has a radial Dornstangenein Kunststoffö réelle which engages around the mandrel bar especially during stroke and / or return stroke, so that the plunger can perform its thrusting function, even if the mandrel bar protrudes at the rear end or rear head of the tube blank.
  • a tube-like body advantageously integrates into an axial machining path or into an axial feed path, along which the tube blanks are conveyed or pushed.
  • the plunger can be radially permanently open so that it can be easily removed radially from the mandrel bar or radially plugged onto the mandrel.
  • the present plunger can be configured in many ways. Constructively very simple, the plunger is realized when it is designed U-shaped. As a result, the radial Dornstangenein Kunststoffö réelle structurally particularly simple to be formed axially extending on the plunger.
  • a radial displacement of the plunger can for example be practiced advantageously, if the present device has a radial support. Possibly. Radial displaceability can also be realized differently.
  • the plunger comprises a rotary drive.
  • the present object is also achieved by a device for rolling tube blanks which comprises a planetary cross rolling mill, a feed bed, a tube feed, a tube feed advancing the tube billets from the feed bed by the planetary cross roll mill having at least one feed apparatus Mandrel bar and a mandrel bar holder, wherein the tube feed has an axial tube pulley conveying a tube blank axially to a supply position provided axially behind the mandrel bar holder, wherein the feed apparatus between the planetary cross rolling mill and mandrel bar holder is arranged and wherein the device is characterized in that the mandrel bar holder has at least two holding devices, of which a first behind and a second are arranged in front of the feed apparatus.
  • the stroke of the feed apparatus can advantageously be dimensioned such that feeding in of a subsequent tube blank can be ended before the feed apparatus reaches its end position. As a result, advantageously only one attack per tube blank takes place.
  • a further advantageous embodiment provides that the tube feed has at least one further feed apparatus, which is arranged behind the second holder means.
  • the object of the invention is procedurally solved by a method for rolling of tube billets in a planetary cross rolling mill, in which the tube billets are fed continuously butt to beating the planetary cross rolling mill, with two alternating feeders push the tube billets into the planetary cross rolling mill, where the method is characterized in that the two feeders are operated with different stroke lengths.
  • the object of the invention is also achieved by a device for rolling tube blanks, which comprises a planetary cross rolling mill, a feed bed, a tube feed, a tube feed advancing the tube blank from the feed bed by the planetary cross rolling mill, which has at least one advancing apparatus, a mandrel bar and a mandrel bar holder, wherein the tube feed has an axial tube feed conveyor that axially conveys a tube blank to a supply position provided axially behind the mandrel bar holder, the feed apparatus being disposed between the planetary cross rolling mill and the mandrel bar holder and wherein the device is characterized in that Feed unit has a feed path which is longer than half the length of the tube blanks.
  • the object of the invention is also achieved by a method for rolling tube billets in a planetary cross rolling mill in which the tube billets are continuously fed to the planetary cross rolling mill, wherein two alternating feeders push the tube billets into the planetary cross rolling mill and wherein the method is characterized in that the front of the two feeders abuts the tube blank.
  • Such a collision of the respective tube blank is preferably carried out with a Stö- ⁇ el, as described for example in connection with the invention in other places.
  • a rear feed apparatus By bumping with such a plunger, a rear feed apparatus, if it is present, engage further back at a respective end of the tube blank, whereby also the number of attacks can be advantageously reduced.
  • the object of the invention is also achieved by a method for rolling tube billets in a planetary cross rolling mill, in which the tube billets are fed separately from the planetary cross rolling mill and which is characterized in that the respective tube blank is pushed over a mandrel bar before rolling ,
  • the advantage of this solution is to be seen specifically in that the mandrel bar can always remain in its feed bed position and thus also in the protective gas atmosphere of the rolling apparatus. As a result, the load on the mandrel bar can be significantly reduced.
  • the tube bodies can pass through the feed bed more quickly and be pushed towards the planetary cross rolling mill.
  • the object of the invention is also achieved by a method for rolling tube blanks in a planetary cross rolling mill, in which the tube blanks are fed separately from the planetary cross rolling mill, wherein the method is characterized in that the tube blank is conveyed axially on a feed bed.
  • a feed apparatus passes through a return stroke past the tube blank, while the tube blank is conveyed axially onto the feed bed.
  • the feed apparatus can be moved back, whereby in terms of the present rolling process, a further time savings can be achieved.
  • the object of the invention is also achieved by a method for rolling tube billets in a planetary cross rolling mill, in which the tube billets are fed separately from each other the planetary cross rolling mill and which is characterized in that arranged in the tube blank mandrel during rolling of a before the Planetary cross rolling mill arranged mandrel bar holder is held.
  • the in the FIG. 1 Device 1 shown for rolling tube blanks 2 has a planetary cross rolling mill 3, by means of which the tube blanks 2 are successively rolled into finished tubes (not numbered here).
  • a feed bed 4 which comprises a tube feed 5, by means of which the tube bodies 2 are pushed axially along an axial machining path 6 to the planetary cross rolling mill 3.
  • the tube feed 5 is equipped in this embodiment, for this purpose with a single feed unit 7.
  • the respective tube blank 2 of the rolling device 1 is axially conveyed and thereby transported into a ready position 10 of the rolling device 1.
  • the feed bed 4 is also associated with a mandrel 11 and a mandrel bar holder 12.
  • the supply position 10 is located axially behind the mandrel bar holder 12, wherein the feed apparatus 7 between the planetary cross rolling mill 3 and the mandrel rod holder 12 is located.
  • the feed apparatus 7 is provided with a plunger 13 of a Rohrluppenein toughers 14, by means of which each one of the tube blanks 2 successively pushed the planetary cross rolling mill 3 or is pushed.
  • this is a discontinuous feeding process.
  • the plunger 13 is displaceable radially from the axial machining section 6 into a waiting position 16 so that a tube blank 2 can be moved out of the ready position 10 into a rolling position 17.
  • the Rohrluppenein Weger 14 can be opened so that one of the tube blanks 2 can be vorgebeschoben to the plunger 13, although the feed apparatus 7, the mandrel 11 continues to surround.
  • a loading time of a tube blank 2 can be reduced by at least half the conventional loading times, which can often amount to up to 3 minutes at tube-tube lengths of up to 21 m.
  • the plunger 13 has a tubular body 18 which has a radial Dornstangeneinfuelö Stamm (not shown) in the direction of its axial longitudinal extent 19.
  • a radial drive is provided in this embodiment on the feed apparatus 7, which can displace the plunger 13 correspondingly radially.
  • the feed apparatus 7 is also equipped with a rotary drive, not shown here, to rotate the plunger 13 for radial displacement in a corresponding displacement position can, in which the Dornstangeneintechnologyö réelle is directed downwards.
  • a feed path 21 along the axial machining path 6 can be realized which is longer than half the length (not numbered here) of one of the tube bodies 2 and that is at least the length of one of the tube bodies 2.
  • the mandrel bar 11 can remain in front of the planetenschrägwalzwerk 3 in the appropriate inert gas atmosphere, which in particular relieves the mandrel 11 and also the working speed benefits.
  • the rolling apparatus 101 shown has substantially the same structure as the rolling apparatus 1 of FIG. 1 ; However, it is supplemented by a rear feed apparatus 130 as well as a second mandrel rod holder in the form of a first holding device 131A for the mandrel rod 111.
  • the rolling apparatus 101 also has a planetary cross rolling mill 103, which is associated with a feed bed 104 with a tube pulley feed 105 comprising a front feed apparatus 107 and the rear feed apparatus 130.
  • a tube feed 108 with an axial tube feed conveyor 109 is set up.
  • each of the tube blanks 102 can be conveyed in a ready position 110 to be subsequently pushed along an axial machining path 106 by means of the two feed apparatuses 107 and 130 alternately in the direction of the planetary cross rolling mill 103.
  • the mandrel bar 111 is held in position by means of a dome rod holder 112 comprising the first holder 131A and a second holder 131B, and the holders 131A and 131B can open respectively as one tube 102 passes, since then the other of the two holders 131A and 131B the mandrel 111 still holds.
  • the front feed apparatus 107 comprises a Rohrpfuppenein dealinger 114 with a plunger 113, which can be displaced radially 115 from the axial processing section 106 out into a waiting position 116, and then move one of the tube billets 102 on the plunger 113 in a Walzvorposition 117 to be able to.
  • the rear feed apparatus 130 is activated for the last part of the tube blank 102, which has then already run in large part through the rolling device 101.
  • the tube blanks 102 are conveyed to the feed bed 104 in this further embodiment by means of the axial tube inflator 109 and further driven by means of the front feed apparatus 107 shock in the direction of the rear feed apparatus 130.
  • This rear feeder apparatus 130 engages the respective tube blank 102 and pushes them through the planetary cross rolling mill 103.
  • the front feed apparatus 107 the blank broths 102 are respectively pushed into the planetary cross rolling mill 103, possibly also a pushed from the front feed apparatus 107 or from the rear feed apparatus 130th pushed tube blank 102 can push a tube blank 102 located behind it.
  • the tube billets 102 are thus alternately fed to the planetary cross rolling mill 103 by means of the two feeders 107 and 130, the two feeders 107 and 130 having different stroke lengths, and the front advancing apparatus 107 having a forward feed path 121 longer than half the length of one of the tube billets 102 is.
  • the rear feed apparatus 130 has a rearward feed path 132 different therefrom.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
  • Forging (AREA)
EP12004330.2A 2011-06-07 2012-06-06 Dispositif et procédé destinés au laminage d'ébauches de tubes Not-in-force EP2532449B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011116666.5A DE102011116666B4 (de) 2011-06-07 2011-06-07 Vorrichtung und Verfahren zum Walzen von Rohrluppen

Publications (3)

Publication Number Publication Date
EP2532449A2 true EP2532449A2 (fr) 2012-12-12
EP2532449A3 EP2532449A3 (fr) 2013-05-01
EP2532449B1 EP2532449B1 (fr) 2014-10-01

Family

ID=46319532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12004330.2A Not-in-force EP2532449B1 (fr) 2011-06-07 2012-06-06 Dispositif et procédé destinés au laminage d'ébauches de tubes

Country Status (5)

Country Link
US (1) US9616476B2 (fr)
EP (1) EP2532449B1 (fr)
CN (1) CN102814331B (fr)
DE (1) DE102011116666B4 (fr)
ES (1) ES2524900T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110369522A (zh) * 2019-08-14 2019-10-25 广东科莱博科技有限公司 一种管坯推送装置及推送方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106391709B (zh) * 2016-12-20 2019-01-04 广东海亮铜业有限公司 连续轧制行星轧机
CN107497856A (zh) * 2017-08-30 2017-12-22 广东冠邦科技有限公司 管坯连续轧制的方法及设备
CN114054506A (zh) * 2020-08-06 2022-02-18 江苏兴荣高新科技股份有限公司 一种行星轧管机连续轧制铜管的方法
DE102021204129A1 (de) * 2020-08-12 2022-02-17 Sms Group Gmbh Vorrichtung und Verfahren zum Handhaben von Dornstangen in einem Rohrwalzwerk
CN112517649A (zh) * 2020-10-20 2021-03-19 浙江铜加工研究院有限公司 管材上料装置及高速轧机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3136381A1 (de) 1981-09-14 1983-04-14 Kocks Technik Gmbh & Co, 4010 Hilden Walzwerksanlage zur herstellung nahtloser rohre
DE4428530C2 (de) 1994-08-12 1996-10-31 Kocks Technik Verfahren und Walzgerüst zum Schrägwalzen von Rohren
DE10126411B4 (de) 2000-06-14 2005-02-03 Sms Demag Ag Verfahren zum Walzen von Rohrluppen in einem Planetenschrägwalzwerk und Vorrichtung zum Zuführen von Rohrluppen in ein Planetenschrägwalzwerk

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US1263251A (en) * 1916-11-14 1918-04-16 John George Inshaw Apparatus for use in making weldless tubes from hollow blooms, billets, and the like.
US2048925A (en) * 1933-10-19 1936-07-28 Diescher Tube Mills Inc Tube manufacturing apparatus
DE2657839B2 (de) 1976-12-21 1979-09-06 Schloemann-Siemag Ag, 4000 Duesseldorf Walzwerk zum kontinuierlichen Auswalzen von Rohrluppen zu nahtlosen Rohren
AT366298B (de) 1976-12-21 1982-03-25 Schloemann Siemag Ag Walzwerksanlage zur herstellung von nahtlosen rohren
DE3220921A1 (de) 1982-06-03 1983-12-08 Kocks Technik Gmbh & Co, 4010 Hilden Walzwerksanlage mit einem planetenschraegwalzwerk
DE3533119A1 (de) 1985-09-17 1987-03-26 Kocks Technik Schraegwalzgeruest zum walzen von hohlbloecken
DE3905559A1 (de) 1989-02-23 1990-08-30 Esw Roehrenwerke Gmbh Schraegwalzwerk zur herstellung von nahtlosen rohren
ATE311263T1 (de) 2000-06-14 2005-12-15 Sms Demag Ag Verfahren zum walzen von rohrluppen in einem planetenschrägwalzwerk
DE102007014079A1 (de) 2007-03-21 2008-09-25 Kocks Technik Gmbh & Co. Kg Verfahren und Vorrichtung zum Walzen von Walzgut in einer Walzanlage mit einem Schrägwalzwerk

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3136381A1 (de) 1981-09-14 1983-04-14 Kocks Technik Gmbh & Co, 4010 Hilden Walzwerksanlage zur herstellung nahtloser rohre
DE4428530C2 (de) 1994-08-12 1996-10-31 Kocks Technik Verfahren und Walzgerüst zum Schrägwalzen von Rohren
DE10126411B4 (de) 2000-06-14 2005-02-03 Sms Demag Ag Verfahren zum Walzen von Rohrluppen in einem Planetenschrägwalzwerk und Vorrichtung zum Zuführen von Rohrluppen in ein Planetenschrägwalzwerk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110369522A (zh) * 2019-08-14 2019-10-25 广东科莱博科技有限公司 一种管坯推送装置及推送方法

Also Published As

Publication number Publication date
ES2524900T3 (es) 2014-12-15
DE102011116666A1 (de) 2012-12-13
DE102011116666B4 (de) 2015-05-28
US9616476B2 (en) 2017-04-11
CN102814331B (zh) 2016-01-13
CN102814331A (zh) 2012-12-12
EP2532449A3 (fr) 2013-05-01
US20120312062A1 (en) 2012-12-13
EP2532449B1 (fr) 2014-10-01

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