CN1108974A - Cold pilger mill for rolling long tube block - Google Patents
Cold pilger mill for rolling long tube block Download PDFInfo
- Publication number
- CN1108974A CN1108974A CN94119316A CN94119316A CN1108974A CN 1108974 A CN1108974 A CN 1108974A CN 94119316 A CN94119316 A CN 94119316A CN 94119316 A CN94119316 A CN 94119316A CN 1108974 A CN1108974 A CN 1108974A
- Authority
- CN
- China
- Prior art keywords
- plug
- rolling
- pipe
- cold pilger
- thrust block
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
- B21B21/04—Pilgrim-step feeding mechanisms
- B21B21/045—Pilgrim-step feeding mechanisms for reciprocating stands
-
- 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
- B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Fats And Perfumes (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- Metal Extraction Processes (AREA)
Abstract
The invention relates to a pilgering-type cold pilger mill used for rolling long-tube briquettes, which comprises a stander, a driving mechanism, two pushing machines, at least one speed change gear box and at least one clamper. The invention is characterized in that when two clampers are arranged in the cold pilger mill (two mandrill block bases), at least one can be adjusted along the direction in parallel with the rolling direction, so that the mandrill can be adjusted to compensate the position change of the roll gap during the rolling operation.
Description
The present invention relates to the Pilger cold pilger mill that a kind of rolling long tube base is used, these facility have: the frame that can move forward and backward, the main driving machine structure that drive chassis is used, two have a chuck dish separately and are located at propelling movement machinery on the sliding rail frame end to end along rolling direction, this machinery can move along rolling direction by the feed screw that is connected with the main driving machine structure, at least one drives the change gear box that feed screw is used, and at least one is fixed tightly in the clamper (plug thrust block seat) that the plug on the mandrel stem is used.
This milling train for example once disclosed in German patent DE 2922941C2 number, and this milling train not only can be used for working continuously, and also can be used for discontinuous operation.With regard to the Pilger cold pilger mill, when a big thick-walled pipe (pipe) being deformed into a less light-wall pipe, need with inside and outside instrument so that carry out the corresponding correction in inside and outside footpath.When roll moved forward and backward with respect to pipe together with rolling-mill housing, roll rolled on pipe, and the plug that is used as in-house tool then is clamped on the fixing position.This point for example can be accomplished by a mandrel stem, is fixing plug at its front end, and its rear end then is clamped in the plug thrust block seat and remains on this position motionless when rolling.
When working continuously, long mandrel stem needs two can be for the plug thrust block seat that inserts, so that take turns the clamping mandrel stem when loading onto and remove pipe.
Therefore be subjected to packing into the restriction of pipe length of the length of the production tube that can shut out in the Pilger cold pilger mill.Clients often claim, and hope can increase the length that is rolled into QC as far as possible, but this must be restricted, and are several impossible because the lengthening pipe has.Not only because can preliminary treatment require the tissue of pipe length also not have now, set up such one and organize and very big and expensive, but also in default of making these straight tubes with requirement length transport the enough places that transport.The specific question that also has a restriction mandrel stem length is can present too much elasticity consequently to be difficult to plug is clamped on its fixed position relevant with roll when mandrel stem is long.
Also has a problem in addition, solve also very expensive, but as can solve, needs to the place just can reduce so, this problem is exactly that outlet side at milling train winds up pipe, almost do not solve but make the problem that the length that involves mandrel stem is changed like this,, also pipe must be connected on the mandrel stem at last because mandrel stem can not be made thickness arbitrarily.
Therefore problem of the present invention is, from problem and the restriction that prior art exists, develops a kind of Pilger cold pilger mill that belongs to this class, makes it can process extremely long pipe.
The scheme that proposes in order to solve above-mentioned problem is to have one to be can be along regulating with rolling parallel direction, so that adjust the change that plug compensates the position in its breaker roll gap in the clamper (plug thrust block seat) at least.
By the adjustment of an adjustable gripper, even very long mandrel stem, its length change also can compensate, so plug can be clamped on its due position.
Because modern Pilger cold pilger mill is equipped with the mandrel fracture safeties, can monitor the position of plug in pipe, so that when plug or mandrel stem fracture, can brake milling train, from utilizing these mandrel fracture safeties to make plug to rolling fixed-site.The signal that sends with high scan frequency when utilization mandrel fracture protective device and when using an effective computer that matches just might be adjusted the motion of clamper (plug thrust block seat) so that drive plug according to this signal.Even so very long mandrel stem also can make plug accurately locate, so this restriction to the utmost point long tube base of packing into that does not also solve has not up to now just existed.
Be provided with two plug thrust block seats on continuous type milling train, the pipe length that its mutual distance has greater than maximum possible so just can only use the clamper away from milling train that mandrel is moved.The maximum length of mandrel stem is that from behind clamping mechanical is to away from the distance between the plug thrust block seat of milling train.
The plug clamper is made adjustable mechanism so that the pipe that the also available other way of adjusting of thought is packed into and extremely grown according to of the present invention, mandrel stem to the small part of carrying plug at that time replaces with the back stay cord, this back stay cord one end is fixed tightly on the adjustable core bar holder, the other end is fixed tightly on the rear end of mandrel stem or plug, milling train must be proofreaied and correct so at that time, and plug just is applied to pulling force on the stay cord of back.This back stay cord is introduced in the pipe in the service aisle that separates, and can be earlier to this makes it pass pipe with the line of a softness by wind, then back stay cord is attached on this line so that pull out from pipe.Back stay cord can be strained in advance and bear when the rolling and be applied to the axial force on the plug and plug is clamped securely by means of adjustable gripper, the adjusting by clamper at that time, and the elongation of the back stay cord that causes owing to axial force can be compensated.Back stay cord is compared with mandrel stem also has following advantage, and its supply or manufacturing are all simpler, can also save storage space in addition.
Problem for the usefulness that solves that the space is insufficient, it is to pack into after extremely long pipe is reeled that the present invention also has a key character, make the back stay cord pass pipe at that time, one end is connected on mandrel stem or the plug, the other end then is connected on the coiler device that is shaped on the plug clamper, and its winding rotary speed can be by the controlled position adjustments of plug.Also the back stay cord can be attached on the line of a softness herein, at first make the pipe of this line, pull out the back stay cord with line then by rolling with wind.The termination of the mandrel stem side of back stay cord is fixed tightly on mandrel stem or the plug by a fast locking joint, and the other end then is connected on the coiler device.The back stay cord that two ends have all tightened up is at first strained with motor; Make pipe volume loose winding by means of a rolling pipe alignment means for correcting then, until the pipe front end is with till the end of the pipe of going ahead of the rest contacts.Pipe must wound up with the back stay cord that identical rotating speed is fixed tightly in projection pipe volume rear end when unclamping simultaneously from volume.In case in advance the end of pipe engages with the front end of loose winding pipe, the loose winding rotating speed of pipe just must with average propelling movement rate adaptation, from this time, the average winding rotary speed of back stay cord also must with average propelling movement rate adaptation.Different winding rotary speeds can utilize the preconditioning as coiler device.When the back stay cord should maintain plug on its position, particularly when existing two plug thrust block seats were all opened, the winding rotary speed of back stay cord can be adjusted to plug is maintained on the interior accurate position of milling train.As what illustrated, use the back stay cord to replace the prerequisite of traditional mandrel stem to be, when annotating cold rolling pipe, be applied to the power on the plug, unique pulling force that must be born by the back stay cord with Pilger.But this prerequisite can satisfy by suitable correction and a presumable long plug.
Material as the back stay cord can be a steel wire, for example the piano string of a musical instrument or using plastic ties (for example Kevlar-Fanglun 1414) whenever necessary.On steel wire, wrap overcoat or adopt the less plastic ties of friction can avoid the pipe inner face to suffer damage.
Can adopt the electric power or the hydraulic drive mechanism of electrical adjustment as the driving mechanism of coiler device.
Put it briefly, the invention provides the possibility that adopts utmost point long tube base, and this utmost point long tube base is up to now because place situation and at first be because the possible length of mandrel stem is restricted and can not processes.Obviously, each thought of the present invention is also combinable, therefore can also be the time with the pipe of a mandrel rolling straight tube-like with plug with one after the stay cord pulling, then stay cord then resembles the rolling pipe that works and is controlled on coiler device.In this case, back stay cord is fixing and unclamp, but is bearing the task of plug adjustable gripper by coiler device, and this is born by plug thrust block seat under another occasion.Also can imagine, the straight tube-like pipe that is sent to steel rolling mill is made web-like producing in advance in the work step, then loose winding and proofreading and correct before the milling train of packing into or in the process.
The adjustable gripper (plug thrust block seat) of plug must make an amendment slightly when using extremely long mandrel stem according to claim 1 to 3; Because the servo-actuating device of the most handy electric power of plug thrust block seat or hydraulic pressure moves back and forth.Inertia force is less during stay cord after employing, because no longer include the weight of mandrel stem, therefore adopts the back stay cord can improve mechanical number of strokes may before servo-actuating device reaches its power-limits.
The Pilger cold pilger mill that has the mandrel stem that can seesaw can also adopt the rotating mechanism of a plug except can adopting extremely long pipe.This rotating mechanism just uses in the time of must advancing no longer length by length at the plug thrust block seat away from milling train at least.The also available constant rotating speed rotation of this plug thrust block seat is by torsion setting motion step by step.When pipe comes back rotation, even might abandon rotating mechanism fully away from the plug thrust block seat of milling train.
The one embodiment of the present of invention of drawing in the accompanying drawing, wherein:
Fig. 1 is with the sketch straight tube blank feed, that have the Pilger cold pilger mill of two plug thrust block seats;
Fig. 2 is the sketch with the Pilger cold pilger mill of pipe crimping base feed.
The frame of label 1 expression Pilger cold pilger mill in Fig. 1, this frame drives at the 2 main driving machine structures of being crossed by a torque balance.In order to be used for pushing pipe, on sliding rail frame 6, be provided with the propelling movement machinery 3 and 4 that has a unillustrated chuck dish separately end to end along rolling direction 5, this machinery can move by a feed screw that is connected with driving mechanism 7.Be positioned at plug on the rolling-mill housing, unillustrated and kept, and mandrel stem 9 by the 11 such clampings of plug thrust block seat, and the position of plug is remained unchanged in the rolling process by mandrel stem 9 by pipe 10 guidings.The length of the pipe that can pack into be by plug thrust block seat 11 and another away from plug thrust block seat 12 between distance limit, because when working continuously, these two plug thrust block seats 11 and 12, when a new pipe will be connected in series on the plug, in turn the clamping mandrel stem and on plug.Obviously as seen, when pipe length as shown in the reference numeral 13 the time, be projected into mandrel stem in the milling train because the elasticity prolongation, length has very big change always.Though this length change itself has only several millimeters, but can make plug in milling train, move to far-reaching degree, so that no longer can carry out rolling accurately, diameter and wall thickness are kept exactly, particularly plug thrust block seat 11 is in front opened, and is all the more so when whole pulling force is all born by plug thrust block seat 12.
The present invention regulation on this basis, plug thrust block seat 12 should be made adjustablely at least, so that change according to the length that occurs in mandrel stem, the adjusting by plug thrust block seat position is compensated.The driving of plug thrust block seat 12 can be carried out by the servo-actuating device of unillustrated electric power or hydraulic pressure among Fig. 1.Plug thrust block seat or its adjusting device can be connected with a computer, when computer is received signal from the mandrel fracture protective device, and the position that just can manage to keep plug.
Scheme can replace with a back stay cord with 14 mandrel stems that mark among the figure, and suppose and have only the pulling force of rolling direction 5 to act on this rope, and back stay cord 14 can be fixed tightly on the plug thrust block seat 12 with regulating as an alternative.
Clearly the length overall of visible Pilger cold pilger mill has been shortened in Fig. 2.This is that this rope passes the pipe 15 of rolling supply and is wound on the coiler device 16 with its other end because connecting above-mentioned back stay cord on mandrel stem 9 in the scope of plug thrust block seat 11.This solution can be made very long pipe continuously with extremely short device length, and can guarantee that the position stability of plug in milling train is constant, and the position that occurs changes coiling that can be by the back stay cord and unclamps and compensated.
In the embodiment shown in Figure 2, can at first for example be fixed tightly in one by metal wire or the thread back of plastics stay cord passes on the line of pipe with air blast easily, and the dilatory back of this line stay cord makes it pass pipe, end that then will this back stay cord is fixed tightly on the mandrel stem 9 by a fast locking joint or analog, and then the other end of stay cord then is connected on the coiler device 16.Electric power or hydraulic drive mechanism by means of an electrical adjustment can make the back stay cord at first be strained by motor, make the alignment of rolling pipe and follow the rear end of the pipe 10 of going ahead of the rest to be fed forward simultaneously by means of calibration equipment 18 then.These all carry out with higher speed, and the coiler device of back stay cord has the rotating speed that equates with the reel-off gear of rolling pipe at that time.In case the rear end of pipe engages one another with the front end of loose winding pipe in advance, the loose winding speed of rolling pipe just reduces the average pushing speed of the pipe in milling train that puts in place.In the moment that plug thrust block seat 11 is opened, the winding speed of back stay cord will be regulated to such an extent that the plug position of mandrel fracture protective device control is remained unchanged.
The driving mechanism of plug thrust block seat 12 also can adopt the servo-actuating device of unillustrated electric power or hydraulic pressure among Fig. 1.
Claims (7)
1, the Pilger cold pilger mill used of a kind of rolling long tube base; These facility have: the frame that can move forward and backward; One drives the main driving mechanism that frame is used; Two have separately a chuck dish and are located at end to end propelling movement machinery on the sliding rail frame along the rolling direction; This machinery can move along rolling direction by the feed screw that is connected with main driving mechanism; At least one drives the change gear box that feed screw is used; And at least one is fixed tightly in the clamper (plug thrust block seat) that the plug on the mandrel stem is used; It is characterized in that
Having a palpus when having two clampers (plug thrust block seat 11,12) at least is to regulate along the direction parallel with rolling direction, so that adjust the change that plug compensates the position in its pair roller system gap when being rolled operation.
2, according to the cold pilger mill of claim 1, it is characterized in that,
When regulating plug clamper (plug thrust block seat 11,12) is to adjust according to the plug position that the mandrel fracture safeties are controlled.
3, according to the cold pilger mill of claim 1 and 2, it is characterized in that,
Be provided with the plug clamper (plug thrust block seat 11,12) of two alternating actions on the milling train of continuous operation, the distance between them (X)-discloses one greater than maximum pipe length and to have only that plug clamper away from rolling-mill housing (1) (plug thrust block seat 12) be transportable.
4, according to the cold pilger mill of claim 1, it is characterized in that,
For rolling extremely long pipe, the mandrel stem of carrying plug to small part should be substituted by back stay cord (14), this end of restricting is fixed tightly on the plug adjustable gripper (plug thrust block seat), and the other end is fixed tightly on the rear end of mandrel stem (9) or plug, rolling-mill housing (1) must be proofreaied and correct so at that time, and plug just is applied to pulling force on the back stay cord (14).
5, according to the cold pilger mill of claim 4, it is characterized in that,
Extremely Chang pipe is packed into after reeling, back stay cord (10) passes pipe (10) at that time, one end is connected with mandrel stem (9) or plug, and the other end is connected with the coiler device (16) that is shaped on plug clamper (11,12), and its winding rotary speed can be regulated by the controlled location of plug.
6, according to the cold pilger mill of claim 4 or 5, it is characterized in that,
Available steel wire of back stay cord (14) or plastic ties are made and may be wrapped in the outside with the friction less material.
7, according to the cold pilger mill of claim 5, it is characterized in that,
Coiler device (16) can be driven by the electric power or the hydraulic drive mechanism of an electrical adjustment.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4342858.4 | 1993-12-13 | ||
| DE4342858A DE4342858C2 (en) | 1993-12-13 | 1993-12-13 | Cold pilger rolling mill for rolling long blanks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1108974A true CN1108974A (en) | 1995-09-27 |
Family
ID=6505132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94119316A Pending CN1108974A (en) | 1993-12-13 | 1994-12-12 | Cold pilger mill for rolling long tube block |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0661113B1 (en) |
| JP (1) | JPH07185608A (en) |
| CN (1) | CN1108974A (en) |
| AT (1) | ATE152012T1 (en) |
| CZ (1) | CZ313694A3 (en) |
| DE (2) | DE4342858C2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100488652C (en) * | 2003-08-22 | 2009-05-20 | 科克斯技术有限公司 | Feeding device and method for rolled pieces |
| CN102806230A (en) * | 2011-05-30 | 2012-12-05 | 王晓邦 | Floating core rod rolling copper pipe process and equipment for two-roll reciprocating-type pipe mill |
| CN102950150A (en) * | 2011-08-17 | 2013-03-06 | Sms米尔股份有限公司 | Method and device for producing a cold pilgered pipe |
| CN104781020A (en) * | 2012-09-14 | 2015-07-15 | 山特维克原料技术德国公开股份有限公司 | Pilger rolling train |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2927337A1 (en) * | 2008-02-12 | 2009-08-14 | Cie Europ Du Zirconium Cezus S | PROCESS FOR PRODUCING ZIRCONIUM ALLOY, TITANIUM OR HAFNIUM ALLOYS, BARS PRODUCED THEREBY, AND COMPONENTS OF ZIRCONIUM, TITANIUM OR HAFNIUM ALLOYS FROM THESE BARS |
| CN103722027A (en) * | 2014-01-09 | 2014-04-16 | 宁波东重机械有限公司 | Cold rolling tube mill |
| DE102016106034A1 (en) | 2016-04-01 | 2017-10-05 | Sandvik Materials Technology Deutschland Gmbh | Cold pilger rolling mill and method of making a pipe |
| DE102016106035A1 (en) * | 2016-04-01 | 2017-10-05 | Sandvik Materials Technology Deutschland Gmbh | Cold pilger rolling mill and method of making a pipe |
| CN113145662B (en) * | 2021-03-19 | 2022-05-10 | 阳春新钢铁有限责任公司 | Quick-change switching type horizontal loop platform with cantilever type skirt-edge compression roller |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE639155C (en) * | 1934-07-11 | 1936-11-30 | Tube Reducing Corp | Method of rolling hard metal tubes on a pilger step rolling mill |
| DE2207936C3 (en) * | 1972-02-15 | 1975-03-06 | Mannesmann-Meer Ag, 4050 Moenchengladbach | Mandrel bar supports for cold pilgrim machines |
| DE2363037C3 (en) * | 1973-12-19 | 1981-08-20 | Eisenwerk-Gesellschaft Maximilianshütte mbH, 8458 Sulzbach-Rosenberg | Mandrel fracture protection for cold pilger mills |
| DE2922941C2 (en) * | 1979-06-01 | 1985-12-05 | Mannesmann AG, 4000 Düsseldorf | Cold pilger mill |
| JPS57130708A (en) * | 1981-02-03 | 1982-08-13 | Hiroo Tada | Production of long sized tapered pipe or bar |
| DE3717165C1 (en) * | 1987-03-26 | 1988-03-31 | Mannesmann Ag | Method for the production of tubes by the cold reciprocating rolling method |
| DE3823134C1 (en) * | 1988-07-05 | 1989-04-20 | Mannesmann Ag, 4000 Duesseldorf, De | Method and apparatus for the production of tubes by the cold-pilger method |
-
1993
- 1993-12-13 DE DE4342858A patent/DE4342858C2/en not_active Expired - Fee Related
-
1994
- 1994-11-30 EP EP94250287A patent/EP0661113B1/en not_active Expired - Lifetime
- 1994-11-30 AT AT94250287T patent/ATE152012T1/en not_active IP Right Cessation
- 1994-11-30 DE DE59402514T patent/DE59402514D1/en not_active Expired - Lifetime
- 1994-12-12 CN CN94119316A patent/CN1108974A/en active Pending
- 1994-12-12 JP JP6332135A patent/JPH07185608A/en active Pending
- 1994-12-13 CZ CZ943136A patent/CZ313694A3/en unknown
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100488652C (en) * | 2003-08-22 | 2009-05-20 | 科克斯技术有限公司 | Feeding device and method for rolled pieces |
| CN102806230A (en) * | 2011-05-30 | 2012-12-05 | 王晓邦 | Floating core rod rolling copper pipe process and equipment for two-roll reciprocating-type pipe mill |
| CN102806230B (en) * | 2011-05-30 | 2015-01-21 | 王晓邦 | Floating core rod rolling copper pipe process and equipment for two-roll reciprocating-type pipe mill |
| CN102950150A (en) * | 2011-08-17 | 2013-03-06 | Sms米尔股份有限公司 | Method and device for producing a cold pilgered pipe |
| CN102950150B (en) * | 2011-08-17 | 2016-08-10 | Sms米尔股份有限公司 | For the method and apparatus manufacturing Pilger cold rolled tube |
| US9427787B2 (en) | 2011-08-17 | 2016-08-30 | Sms Meer Gmbh | Method and apparatus for making cold-pilger-rolled tubes |
| CN104781020A (en) * | 2012-09-14 | 2015-07-15 | 山特维克原料技术德国公开股份有限公司 | Pilger rolling train |
| CN104781020B (en) * | 2012-09-14 | 2017-05-10 | 山特维克原料技术德国公开股份有限公司 | Pilger rolling train |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4342858C2 (en) | 1996-01-11 |
| CZ313694A3 (en) | 1996-04-17 |
| DE59402514D1 (en) | 1997-05-28 |
| EP0661113A1 (en) | 1995-07-05 |
| ATE152012T1 (en) | 1997-05-15 |
| DE4342858A1 (en) | 1995-06-14 |
| EP0661113B1 (en) | 1997-04-23 |
| JPH07185608A (en) | 1995-07-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |