CN105170653B - Multi-functional rolling with secondary punch function roll shape - Google Patents

Multi-functional rolling with secondary punch function roll shape Download PDF

Info

Publication number
CN105170653B
CN105170653B CN201510585920.9A CN201510585920A CN105170653B CN 105170653 B CN105170653 B CN 105170653B CN 201510585920 A CN201510585920 A CN 201510585920A CN 105170653 B CN105170653 B CN 105170653B
Authority
CN
China
Prior art keywords
support
roll shape
backstage
foreground
secondary punch
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.)
Active
Application number
CN201510585920.9A
Other languages
Chinese (zh)
Other versions
CN105170653A (en
Inventor
高万峰
李凤魁
李万明
宋来柱
周建超
冯永涛
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.)
Xinpengyuan Intelligent Equipment Group Co Ltd
Original Assignee
Xinpengyuan Intelligent Equipment Group Co Ltd
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 Xinpengyuan Intelligent Equipment Group Co Ltd filed Critical Xinpengyuan Intelligent Equipment Group Co Ltd
Priority to CN201510585920.9A priority Critical patent/CN105170653B/en
Publication of CN105170653A publication Critical patent/CN105170653A/en
Application granted granted Critical
Publication of CN105170653B publication Critical patent/CN105170653B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)

Abstract

The present invention relates to a kind of Multi-functional rolling with secondary punch function roll shape of function of having punch concurrently and the function of pipe mill and its roll shape suitable for secondary punch operation, including foreground equipment, main frame and the background devices set gradually, background devices include push rod dolly, push rod drive car, backstage support, restraint device and thrust brake, push rod dolly is slidably disposed on the support of backstage by the driving of push rod drive car, and restraint device and thrust brake are separately positioned on the top of backstage support;Foreground equipment includes blow tank, foreground support and the pusher drive car set gradually, pusher dolly is slideably provided with the support of foreground, main frame is arranged between foreground support and backstage support, roll is provided with main frame, roll includes the roll main shaft being rotatably arranged on main frame and the secondary punch function roll shape being fixedly installed on roll main shaft, and roll main shaft is connected with final drive shaft.

Description

Multi-functional rolling with secondary punch function roll shape
Technical field
The present invention relates to a kind of seamless steel pipe production, more particularly to a kind of more work(with secondary punch function roll shape Can milling train.
Background technology
In seamless steel tube production field, the effect of Mannesmann piercing mill is solid pipe billet piercing into hollow hollow billet, rolls Pipe machine acting on and hollow billet be finish-machined to as finished product seamless steel pipe.Both equipments are that production seamless steel pipe is indispensable Most basic equipment.Tiltedly bundle punch is typically first passed through when producing seamless steel pipe solid pipe billet is pierced into hollow hollow billet, so Hollow billet is finish-machined to by finished product seamless steel pipe by pipe mill again afterwards.It is mature that it is that seamless steel tube production technology is developed so far The seamless steel pipe of production technology, the either national defence of production high-quality, military project and important use, or produce the one of low and middle-grade times As industry and civilian seamless pipe be intended to use this technique, by this whole production technology mistake from raw material pipe to finished product seamless pipe Found after Cheng Jinhang segmentations, perforating and overlapped and cross section be present in two links of tube rolling, this is overlapping and intersects Part is necessary for some high-end products, and is completely omissible for some low-end products.It is low in The seamless steel pipe of class is higher using the technique productions cost.Moreover, for the enterprise of seamless steel tube production chain to be built, equal nothing One will exceptionally have perforation unit and Tube Rolling Train, and this is invested for product orientation for general industry and civilian producer Larger, capacity of equipment is superfluous.In addition, if the function of the function of punch and pipe mill is integrated on one device, Secondary punch function roll shape on existing equipment will no longer adapt to the equipment after integrating, it is necessary to redesign.
In view of it is above-mentioned the defects of, the design people, be actively subject to research and innovation, to found a kind of more work(of new structure Energy milling train, make it with more the value in industry.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of work(for the function and pipe mill for having punch concurrently Energy and its roll shape are suitable to the Multi-functional rolling with secondary punch function roll shape of secondary punch operation.
The present invention the Multi-functional rolling with secondary punch function roll shape, including set gradually foreground equipment, main frame And background devices, the background devices include push rod dolly, push rod drive car, backstage support, restraint device and thrust Device, the push rod drive car include backstage transmission device and backstage reel, and the push rod dolly is mounted slidably On the support of backstage, the output shaft of the transmission device is connected by universal drive shaft with the main shaft of backstage reel, the backstage reel It is connected by steel wire rope with push rod dolly, the restraint device and thrust brake are separately positioned on the top of backstage support;
The foreground equipment includes blow tank, foreground support and the pusher drive car set gradually, the foreground Pusher dolly is slideably provided with support, the pusher drive car includes foreground transmission device and foreground reel, institute The output shaft for stating foreground transmission device is connected by universal drive shaft with the main shaft of foreground reel, the foreground reel by steel wire rope with Pusher dolly connects;
The main frame is arranged between foreground support and backstage support, and roll is provided with main frame, and the roll includes turning The roll main shaft being arranged on dynamicly on main frame and the secondary punch function roll shape being fixedly installed on roll main shaft, the roll master Axle is connected with final drive shaft, the output axis connection of the final drive shaft and main transmission;
The entrance cone angle of the secondary punch function roll shape is 5 degree, a length of 440 milli of entrance of secondary punch function roll shape Rice, the Toe angle of secondary punch function roll shape is 1.5 degree, and a length of 560 millimeters of the outlet section of secondary punch function roll shape is secondary The length for function roll shape of perforating is 1000 millimeters, and the maximum roll neck of secondary punch function roll shape is 1200 millimeters.
Further, the Multi-functional rolling with secondary punch function roll shape of the invention, the foreground transmission device, after Platform transmission device and main transmission include motor and speed reducer respectively, and the input shaft of the reductor and the output shaft of motor connect Connect.
Further, the Multi-functional rolling with secondary punch function roll shape of the invention, the thrust brake include machine Seat, thrust mechanism and retaining mechanism, the support are arranged on the top of backstage support, thrust mechanism and the retaining mechanism difference It is arranged on support.
Further, the Multi-functional rolling with secondary punch function roll shape of the invention, the restraint device include limit Dynamic support, restraint oil cylinder and stopper mechanism, the restraint support are arranged on the top of backstage support, and the restraint oil cylinder is arranged on On restraint support, the stopper mechanism is arranged on the top of push rod dolly and stopper mechanism is connected with the lever of restraint oil cylinder.
Further, the Multi-functional rolling with secondary punch function roll shape of the invention, the backstage support it is close One end of main frame is additionally provided with fixed pulley.
Further, the Multi-functional rolling with secondary punch function roll shape of the invention, the blow tank are included at least Two adjustable hoppers, moving vertically idler is additionally provided between the adjustable hopper.
By such scheme, the present invention at least has advantages below:The present invention's has the more of secondary punch function roll shape Function milling train, including foreground equipment, main frame and the background devices set gradually, the push rod dolly of background devices pass through push rod dolly Drive device is slidably disposed on the support of backstage, and restraint device and thrust brake, foreground are additionally provided with above the support of backstage Equipment includes blow tank, foreground support, the pusher drive car set gradually, and pusher dolly is driven by pusher dolly and filled Put and be slidably disposed on the support of foreground, main frame is arranged between foreground support and backstage support, is provided with roll in main frame, is rolled Roller includes roll main shaft and the secondary punch function roll shape being arranged on roll main shaft.In punch, the thrust of push rod dolly For device in perforator background, and in traditional pipe mill, restraint device is on the foreground of pipe mill.In order to unified, the present invention The Multi-functional rolling with secondary punch function roll shape by restraint device be also provided in backstage, in use, plug may be provided at top On bar dolly, the force way of plug is changed into being pressurized from original tension, the combined type being made up of restraint device and thrust brake Push rod position is adjustable when stopper mechanism realizes perforation, and mandrel movement limiting stroke and starting and terminating point are adjustable during tube rolling.Foreground integrates The common feature of punch and pipe mill, extended length to adapt to the needs of hollow billet length, while provided with pusher dolly to Pusher realizes the rolling function to hollow billet, and need to be only arranged on push rod on push rod dolly when needing to use perforation function can be real The now perforation function to pipe, because the Multi-functional rolling with secondary punch function roll shape of the present invention is in punch and is rolled Make on the basis of pipe machine, therefore, the roll shape for being formerly used for the roll of secondary punch function has been no longer desirable for the present invention The Multi-functional rolling with secondary punch function roll shape, it is therefore, of the invention that there is the multi-functional of secondary punch function roll shape Milling train is transformed the roll shape of original roll for secondary punch function, mainly to its entrance cone angle, entrance segment length, Toe angle, outlet segment length, the length of roll shape and the several aspects of maximum roll neck are improved, to adapt to new equipment.In addition, When the Multi-functional rolling for needing to have secondary punch function roll shape using the present invention carries out other operations such as tube rolling, sizing, only Corresponding roll shape need to be changed.In summary, the spirit of the Multi-functional rolling technique with secondary punch function roll shape of the invention It is living, the different choice various processes of current existing pipe and required production tube specification can be directed to, meet the market demand.With biography System production method is compared, and product adjustment is more flexible, can adapt to the fast changing market demand in time;Pipe buying simultaneously is more clever Activity, the relatively low product of different prices selection price can be directed to, is brought convenience for pipe buying.In actual production, according to institute The product specification different choice difference production method of production, what is had reduces instrument consumption, and what is had reduces production process, has Rate of becoming a useful person, which can be improved, reduces production cost.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Brief description of the drawings
Fig. 1 is that the foreground equipment of Multi-functional rolling with secondary punch function roll shape of the present invention and the structure of main frame are shown It is intended to;
Fig. 2 is the structural representation of the background devices of the Multi-functional rolling with secondary punch function roll shape of the present invention;
Fig. 3 is the partial enlarged drawing in A portions in Fig. 1;
Fig. 4 is the partial enlarged drawing in B portions in Fig. 1;
Fig. 5 is the partial enlarged drawing in C portions in Fig. 2;
Fig. 6 is the sectional view of secondary punch function roll shape.
In figure, 1:Push rod dolly;2:Push rod drive car;3:Backstage support;4:Restraint device;5:Thrust brake; 6:Backstage transmission device;7:Backstage reel;8:Blow tank;9:Foreground support;10:Pusher drive car;11:Pusher is small Car;12:Foreground transmission device;13:Foreground reel;14:Roll;15:Roll main shaft;16:Secondary punch function roll shape;17:It is main Power transmission shaft;18:Main transmission;19:Motor;20:Reductor;21:Support;22:Thrust mechanism;23:Retaining mechanism;24:Limit Dynamic support;25:Restraint oil cylinder;26:Fixed pulley;27:Adjustable hopper;28:Moving vertically idler.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Referring to Fig. 1 to Fig. 6, a kind of multi-functional rolling with secondary punch function roll shape of a preferred embodiment of the present invention Machine, including foreground equipment, main frame and the background devices set gradually, background devices include push rod dolly 1, push rod dolly driving dress 2, backstage support 3, restraint device 4 and thrust brake 5 are put, push rod drive car includes backstage transmission device 6 and backstage is rolled up Cylinder 7, push rod dolly is slidably disposed on the support of backstage, and the output shaft of transmission device passes through the master of universal drive shaft and backstage reel Axis connection, backstage reel are connected by steel wire rope with push rod dolly, and restraint device and thrust brake are separately positioned on backstage support Top;
Foreground equipment includes blow tank 8, foreground support 9 and the pusher drive car 10 set gradually, foreground support On be slideably provided with pusher dolly 11, pusher drive car includes foreground transmission device 12 and foreground reel 13, foreground The output shaft of transmission device is connected by universal drive shaft with the main shaft of foreground reel, and foreground reel is connected by steel wire rope and pusher dolly Connect;
Main frame is arranged between foreground support and backstage support, and roll 14 is provided with main frame, and roll includes rotationally setting Put the roll main shaft 15 on main frame and the secondary punch function roll shape 16 being fixedly installed on roll main shaft, roll main shaft and master Power transmission shaft 17 connects, the output axis connection of final drive shaft and main transmission 18;
The entrance cone angle of secondary punch function roll shape is 5 degree, a length of 440 millimeters of the entrance of secondary punch function roll shape, The Toe angle of secondary punch function roll shape is 1.5 degree, and a length of 560 millimeters of the outlet section of secondary punch function roll shape is secondary to wear The length of hole function roll shape is 1000 millimeters, and the maximum roll neck of secondary punch function roll shape is 1200 millimeters.
During actual use, push rod is arranged on push rod dolly by operating personnel, and push rod dolly is in push rod drive car Driving under slided on the support of backstage, and be fixed on by thrust brake on the support of backstage, while be arranged on push rod dolly Push rod lifted by one section of the carrying roller in backstage and enter main frame after suitable height, while pipe after pusher dolly by setting Put on blow tank, then push rod carries out perforation process under the drive of roll to pipe.In punch, push rod dolly stops For pushing device in perforator background, and in traditional pipe mill, restraint device is on the foreground of pipe mill.In order to unified, this hair Restraint device is also provided in backstage by the bright Multi-functional rolling with secondary punch function roll shape, in use, plug may be provided at On push rod dolly, the force way of plug is changed into being pressurized from original tension, the combination being made up of restraint device and thrust brake Push rod position is adjustable when formula stopper mechanism realizes perforation, and mandrel movement limiting stroke and starting and terminating point are adjustable during tube rolling.Foreground is comprehensive The common feature of punch and pipe mill is closed, extended length is to adapt to the needs of hollow billet length, while it is small automobile-used to be provided with pusher Rolling function to hollow billet is realized with pusher, push rod need to be only arranged on when needing to use perforation function on push rod dolly Realize perforation function to pipe, due to the Multi-functional rolling with secondary punch function roll shape of the present invention be punch with Make on the basis of pipe mill, therefore, the roll shape for being formerly used for the roll of secondary punch function has been no longer desirable for this hair The bright Multi-functional rolling with secondary punch function roll shape, therefore, more work(with secondary punch function roll shape of the invention Energy milling train is transformed the roll shape of original roll for secondary punch function, mainly to its entrance cone angle, entrance Length, Toe angle, outlet segment length, the length of roll shape and the several aspects of maximum roll neck are improved, to adapt to new equipment.This Outside, when the Multi-functional rolling for needing to have secondary punch function roll shape using the present invention carries out other operations such as tube rolling, sizing, Corresponding roll shape only need to be changed.In summary, the Multi-functional rolling technique with secondary punch function roll shape of the invention Flexibly, the different choice various processes of current existing pipe and required production tube specification can be directed to, meet the market demand.With Conventional production methods are compared, and product adjustment is more flexible, can adapt to the fast changing market demand in time;Pipe buying simultaneously has more Flexibility, the relatively low product of different prices selection price can be directed to, is brought convenience for pipe buying.In actual production, according to The product specification different choice difference production method produced, what is had reduces instrument consumption, and what is had reduces production process, has Improve become a useful person rate reduce production cost.
Preferably, the Multi-functional rolling with secondary punch function roll shape of the present invention, foreground transmission device, backstage pass Dynamic device and main transmission include motor 19 and reductor 20, the input shaft of reductor and the output axis connection of motor respectively.
Preferably, the present invention the Multi-functional rolling with secondary punch function roll shape, thrust brake including support 21, Thrust mechanism 22 and retaining mechanism 23, support are arranged on the top of backstage support, and thrust mechanism and retaining mechanism are separately positioned on On support.
Preferably, the Multi-functional rolling with secondary punch function roll shape of the present invention, restraint device include restraint branch Frame 24, restraint oil cylinder 25 and stopper mechanism (not shown), restraint support are arranged on the top of backstage support, and restraint oil cylinder is set Put on restraint support, stopper mechanism is arranged on the top of push rod dolly and stopper mechanism is connected with the lever of restraint oil cylinder.
Preferably, the Multi-functional rolling with secondary punch function roll shape of the present invention, the close main frame of backstage support One end be additionally provided with fixed pulley 26.
Preferably, the Multi-functional rolling with secondary punch function roll shape of the present invention, blow tank includes at least two Adjustable hopper 27, moving vertically idler 28 is additionally provided between adjustable hopper.
It the above is only the preferred embodiment of the present invention, be not intended to limit the invention, it is noted that led for this technology For the those of ordinary skill in domain, without departing from the technical principles of the invention, some improvement and modification can also be made, These improvement and modification also should be regarded as protection scope of the present invention.

Claims (6)

  1. A kind of 1. Multi-functional rolling with secondary punch function roll shape, it is characterised in that:Including set gradually foreground equipment, Main frame and background devices, the background devices include push rod dolly, push rod drive car, backstage support, restraint device and Thrust brake, the push rod drive car include backstage transmission device and backstage reel, and the push rod dolly is slideably It is arranged on the support of backstage, the output shaft of the transmission device is connected by universal drive shaft with the main shaft of backstage reel, the backstage Reel is connected by steel wire rope with push rod dolly, and the restraint device and thrust brake are separately positioned on the top of backstage support;
    The foreground equipment includes blow tank, foreground support and the pusher drive car set gradually, the foreground support On be slideably provided with pusher dolly, the pusher drive car includes foreground transmission device and foreground reel, before described The output shaft of platform transmission device is connected by universal drive shaft with the main shaft of foreground reel, and the foreground reel passes through steel wire rope and pusher Dolly connects;
    The main frame is arranged between foreground support and backstage support, and roll is provided with main frame, and the roll is included rotationally The roll main shaft being arranged on main frame and the secondary punch function roll shape being fixedly installed on roll main shaft, the roll main shaft with Final drive shaft connects, the output axis connection of the final drive shaft and main transmission;
    The entrance cone angle of the secondary punch function roll shape is 5 degree, a length of 440 millimeters of the entrance of secondary punch function roll shape, The Toe angle of secondary punch function roll shape is 1.5 degree, and a length of 560 millimeters of the outlet section of secondary punch function roll shape is secondary to wear The length of hole function roll shape is 1000 millimeters, and the maximum roll neck of secondary punch function roll shape is 1200 millimeters.
  2. 2. the Multi-functional rolling according to claim 1 with secondary punch function roll shape, it is characterised in that:The foreground Transmission device, backstage transmission device and main transmission include motor and speed reducer, input shaft and the electricity of the reductor respectively The output axis connection of machine.
  3. 3. the Multi-functional rolling according to claim 1 with secondary punch function roll shape, it is characterised in that:The thrust Device includes support, thrust mechanism and retaining mechanism, and the support is arranged on the top of backstage support, the thrust mechanism and lock Tight mechanism is separately positioned on support.
  4. 4. the Multi-functional rolling according to claim 1 with secondary punch function roll shape, it is characterised in that:The restraint Device includes restraint support, restraint oil cylinder and stopper mechanism, and the restraint support is arranged on the top of backstage support, the restraint Oil cylinder is arranged on restraint support, and the stopper mechanism is arranged on the top of push rod dolly and stopper mechanism and restraint oil cylinder Lever connects.
  5. 5. the Multi-functional rolling according to claim 1 with secondary punch function roll shape, it is characterised in that:The backstage One end of the close main frame of support is additionally provided with fixed pulley.
  6. 6. the Multi-functional rolling according to claim 1 with secondary punch function roll shape, it is characterised in that:The material feeding Groove includes at least two adjustable hoppers, and moving vertically idler is additionally provided between the adjustable hopper.
CN201510585920.9A 2015-09-15 2015-09-15 Multi-functional rolling with secondary punch function roll shape Active CN105170653B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510585920.9A CN105170653B (en) 2015-09-15 2015-09-15 Multi-functional rolling with secondary punch function roll shape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510585920.9A CN105170653B (en) 2015-09-15 2015-09-15 Multi-functional rolling with secondary punch function roll shape

Publications (2)

Publication Number Publication Date
CN105170653A CN105170653A (en) 2015-12-23
CN105170653B true CN105170653B (en) 2018-02-06

Family

ID=54893341

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510585920.9A Active CN105170653B (en) 2015-09-15 2015-09-15 Multi-functional rolling with secondary punch function roll shape

Country Status (1)

Country Link
CN (1) CN105170653B (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10180311A (en) * 1996-12-24 1998-07-07 Sanyo Special Steel Co Ltd Method for preventing slip of piercer roll
EP1388378A1 (en) * 2002-08-10 2004-02-11 SMS Meer GmbH Method for producing a hollow ingot of metallic material
CN201862618U (en) * 2010-08-03 2011-06-15 扬州龙川钢管有限公司 Novel composite roll piercing mill for producing large-diameter seamless steel pipes
CN102172625A (en) * 2011-01-30 2011-09-07 太原科技大学 Seamless steel pipe three-roller skew tandem rolling production method and apparatus thereof
CN102343361A (en) * 2010-08-03 2012-02-08 扬州龙川钢管有限公司 Composite perforating machine
KR20120040832A (en) * 2010-10-20 2012-04-30 주식회사 율촌 Piercing plug for seamless tube and manufacturing method for seamless tube using the same
CN202824107U (en) * 2012-09-24 2013-03-27 聊城鑫鹏源金属制造有限公司 Combined-type thrust and stop linkage mechanism
CN204353203U (en) * 2014-11-25 2015-05-27 聊城鑫鹏源金属制造有限公司 There is the punch of novel thrust mechanism
CN104741380A (en) * 2015-04-04 2015-07-01 内蒙古包钢钢联股份有限公司 Tube blank hot centring machine and hot centring method
CN205020507U (en) * 2015-09-15 2016-02-10 鑫鹏源智能装备集团有限公司 Multi -functional rolling stand with secondary perforation function roller type

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10180311A (en) * 1996-12-24 1998-07-07 Sanyo Special Steel Co Ltd Method for preventing slip of piercer roll
EP1388378A1 (en) * 2002-08-10 2004-02-11 SMS Meer GmbH Method for producing a hollow ingot of metallic material
CN201862618U (en) * 2010-08-03 2011-06-15 扬州龙川钢管有限公司 Novel composite roll piercing mill for producing large-diameter seamless steel pipes
CN102343361A (en) * 2010-08-03 2012-02-08 扬州龙川钢管有限公司 Composite perforating machine
KR20120040832A (en) * 2010-10-20 2012-04-30 주식회사 율촌 Piercing plug for seamless tube and manufacturing method for seamless tube using the same
CN102172625A (en) * 2011-01-30 2011-09-07 太原科技大学 Seamless steel pipe three-roller skew tandem rolling production method and apparatus thereof
CN202824107U (en) * 2012-09-24 2013-03-27 聊城鑫鹏源金属制造有限公司 Combined-type thrust and stop linkage mechanism
CN204353203U (en) * 2014-11-25 2015-05-27 聊城鑫鹏源金属制造有限公司 There is the punch of novel thrust mechanism
CN104741380A (en) * 2015-04-04 2015-07-01 内蒙古包钢钢联股份有限公司 Tube blank hot centring machine and hot centring method
CN205020507U (en) * 2015-09-15 2016-02-10 鑫鹏源智能装备集团有限公司 Multi -functional rolling stand with secondary perforation function roller type

Also Published As

Publication number Publication date
CN105170653A (en) 2015-12-23

Similar Documents

Publication Publication Date Title
CN101024229A (en) Continuous casting, continuous solling production method and apparatus for stainless steel seamless composite pipe
CN203409504U (en) Cold header
CN205906018U (en) Forge and use finished product conveyer
CN101352728A (en) Novel technique for producing large-sized seamless steel pipe
CN201632511U (en) Tension-free coiler for trimmings
CN104826868B (en) Small-diameter seamless steel pipe floating mandrel continuous mill unit and seamless steel pipe production process
CN105170653B (en) Multi-functional rolling with secondary punch function roll shape
CN105170655B (en) Multi-functional rolling with revolution sizing function roll shape
CN205020507U (en) Multi -functional rolling stand with secondary perforation function roller type
CN205020510U (en) Multi -functional rolling stand with expansion function roller type
CN205020512U (en) Multi -functional rolling stand with roll a tub function roller type
CN205020509U (en) Multi -functional rolling stand with gyration sizing function roller type
CN205020508U (en) Multi -functional rolling stand with integrative function roller type of pierced billet
CN204657348U (en) A kind of spiral square hoop forming apparatus
CN105170654B (en) The Multi-functional rolling for having the function of pierced billet one roll shape
CN205270429U (en) Device for preventing coil of strip head loose winding
CN205020513U (en) Multi -functional rolling stand with perforation function roller type
CN106955900B (en) Horizontal volume arranges plate drawing machine
CN205110352U (en) Wide strip production device in full continuous type
CN103846283B (en) Lamination transmission close-coupled multi-roll mill
CN104014980B (en) A kind of device that axis products is carried out sectional type annular knurl
CN102962266A (en) System for feeding bars to cooling bed at high speed in short distance
CN206156433U (en) Coiled material draw gear
CN107695250A (en) A kind of steel wire straightener
CN206747285U (en) Horizontal volume arranges plate drawing machine

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant