EP3791972A1 - Rolling mill laying head - Google Patents
Rolling mill laying head Download PDFInfo
- Publication number
- EP3791972A1 EP3791972A1 EP20195272.8A EP20195272A EP3791972A1 EP 3791972 A1 EP3791972 A1 EP 3791972A1 EP 20195272 A EP20195272 A EP 20195272A EP 3791972 A1 EP3791972 A1 EP 3791972A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nose
- quill
- guide
- auger plate
- trough
- 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.)
- Withdrawn
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 4
- 239000000463 material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
- B21C47/10—Winding-up or coiling by means of a moving guide
- B21C47/14—Winding-up or coiling by means of a moving guide by means of a rotating guide, e.g. laying the material around a stationary reel or drum
- B21C47/143—Winding-up or coiling by means of a moving guide by means of a rotating guide, e.g. laying the material around a stationary reel or drum the guide being a tube
-
- 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
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
- B21C47/10—Winding-up or coiling by means of a moving guide
- B21C47/14—Winding-up or coiling by means of a moving guide by means of a rotating guide, e.g. laying the material around a stationary reel or drum
Definitions
- aspects of the present invention relate to high speed rod rolling mills, and more particularly to improvements to the laying heads employed in such mills to form the hot rolled product into a helical series of rings.
- a conventional laying head 10 includes a housing containing a rotatably driven hollow quill 12.
- the quill is subdivided into a tubular body 12a journalled for rotation between axially spaced bearings 14, 16, and a nose 18 detachably secured by means of a mounting flange 20 to the tubular body 12a.
- the nose projects axially and forwardly in cantilever fashion from the tubular body.
- the quill 12 carries a product guide, typically in the form of a three dimensionally curved laying pipe 22.
- the laying pipe has an entry end 22a aligned with the rotational axis "X" of the quill 12, and a curved intermediate section 12b leading to a delivery end 12c spaced radially from axis X.
- Hot rolled steel rod is directed into the entry end 22a of the laying pipe 22 along axis X, and exits from the delivery end 22c as a helical formation of rings (not shown).
- the rings are additionally confined and moved forward by a helical guide trough 24 surrounded by a cylindrical shroud 26.
- the guide trough 24 is configured and dimensioned to coact with the shroud 26 in providing an axially and radially confined helical extension of the guide path defined by the laying pipe 22.
- the curved intermediate portion 22b of the laying pipe 22 is supported on the nose 18 by radially projecting struts 28, whereas the guide trough 24 is carried on a separate disc-shaped trough support 30 detachably mounted on the end of the cantilevered nose 18.
- the disc-shaped trough support 30 may be seen as including a hub 32 at the center of a helical plate 34 on the outer rim of which are attached channel-shaped trough segments typically indicated at 24'.
- the helical plate 34 is typically welded to the hub 32, with the resulting structure of the trough support 30 being robust and consequently heavy in order to withstand the stresses resulting from high speed operation of the laying head. Moreover, difficulties are encountered in accurately aligning the trough support 30 with the rotational axis X of the laying head, with even slight misalignments causing disruptive vibrations at high speeds.
- WO 03/051553 A1 shows a laying head for forming an axially moving hot rolled product into a helical series of rings, said laying head comprising a quill rotatable about an axis, said quill having a tubular body journalled for rotation between axially spaced bearings, and having a nose projecting axially and forwardly from said body; a product guide carried by said quill, said product guide having an entry and aligned with said axis and arranged to receive said product; a guide trough providing a helical extension of said product guide.
- aspects of the present invention include supporting both the product guide, which may comprise a laying pipe, and the guide trough, on a continuous helical support formed as an integral component of the nose projecting axially and forwardly from the tubular body of the quill.
- the guide trough segments are subdivided into a continuous bottom comprising the outer rim of the helical support, with the side walls being segmented, detachably secured to the trough bottom, and readily replaceable when worn.
- the conventional assembly of the nose 18 and separate disc-shaped trough support 30 depicted in Fig. 1 is replaced by a unitary nose 36, an exemplary embodiment of which is depicted in Fig. 4 .
- the unitary nose 36 has a central tubular body 38 provided at one end with a mounting flange 40 adapted to be connected to the tubular body 12a of the conventional laying head quill 12 shown in Figs. 1-3 .
- a helical support which may comprise a continuous auger plate 42 configured as an unwinding spiral scroll, is permanently joined to the central body 38.
- the auger plate 42 extends continuously from the mounting flange 40 to the distal end of the central body 38.
- a segment of the plate 42 carries brackets 44 on its rim.
- the brackets 44 coact with clamps 46 to secure the laying pipe 22 in its operative position.
- the remaining rim of the auger plate 42 is defined by a continuous collar serving as the bottom 48 of a channel-shaped guide trough 50.
- the sides 52 of the guide trough 50 are segmented and detachable secured to the bottom 48 by conventional fasteners which may comprise bolts 54 and nuts 56.
- An exemplary embodiment of a trough side wall segment 52 is depicted in Figs. 9A and 9B .
- the side wall segments 52 are identical.
- the side wall segments may be cast or fabricated from light weight wear resistant materials, illustrative examples including aluminum, aluminum alloys, carbon fibers, thermoplastics, etc.
- the interior surfaces 52' of the side wall segments 52 may comprise or be coated with a wear resistant material, for example, a nano metal.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
- Metal Rolling (AREA)
Abstract
Description
- This application claims benefit, under 35 U.S.C. § 119(e), of
U.S. Provisional Application Serial No. 61/707,510 filed on September 28,2012 U.S. Utility Application Serial No. 13/614,145 filed September 13, 2012 - Aspects of the present invention relate to high speed rod rolling mills, and more particularly to improvements to the laying heads employed in such mills to form the hot rolled product into a helical series of rings.
- With reference to
Fig. 1 , aconventional laying head 10 includes a housing containing a rotatably driven hollow quill 12. The quill is subdivided into atubular body 12a journalled for rotation between axially spacedbearings nose 18 detachably secured by means of amounting flange 20 to thetubular body 12a. The nose projects axially and forwardly in cantilever fashion from the tubular body. - The quill 12 carries a product guide, typically in the form of a three dimensionally
curved laying pipe 22. The laying pipe has anentry end 22a aligned with the rotational axis "X" of the quill 12, and a curved intermediate section 12b leading to adelivery end 12c spaced radially from axis X. - Hot rolled steel rod is directed into the
entry end 22a of thelaying pipe 22 along axis X, and exits from the delivery end 22c as a helical formation of rings (not shown). Upon exiting from the delivery end 22c of thelaying pipe 22, the rings are additionally confined and moved forward by ahelical guide trough 24 surrounded by acylindrical shroud 26. Theguide trough 24 is configured and dimensioned to coact with theshroud 26 in providing an axially and radially confined helical extension of the guide path defined by thelaying pipe 22. - Although this extended confinement has proven to be highly beneficial in resisting distortion and kinking of the tail ends of products as they exit from the
laying head 10, the manner of supporting theguide trough 24, as well as its design, have given rise to difficulties that have been found to compromise high speed operation of the laying head. - For example, the curved intermediate portion 22b of the laying
pipe 22 is supported on thenose 18 by radially projectingstruts 28, whereas theguide trough 24 is carried on a separate disc-shaped trough support 30 detachably mounted on the end of the cantileverednose 18. - With further reference to
Figs. 2 and3 , the disc-shaped trough support 30 may be seen as including ahub 32 at the center of ahelical plate 34 on the outer rim of which are attached channel-shaped trough segments typically indicated at 24'. - The
helical plate 34 is typically welded to thehub 32, with the resulting structure of thetrough support 30 being robust and consequently heavy in order to withstand the stresses resulting from high speed operation of the laying head. Moreover, difficulties are encountered in accurately aligning thetrough support 30 with the rotational axis X of the laying head, with even slight misalignments causing disruptive vibrations at high speeds. - An additional drawback relates to the conventional trough segments 24', which typically comprise unitary expensive investment castings. The traditional casting materials have been found to lack adequate resistance to wear occasioned by factional contact with the hot rolled product. Attempts at dealing with this problem have included increasing the thicknesses of the trough segment side walls, but the resulting increased weight has been found to further contribute to instability of the laying head.
-
WO 03/051553 A1 - Broadly stated, aspects of the present invention include supporting both the product guide, which may comprise a laying pipe, and the guide trough, on a continuous helical support formed as an integral component of the nose projecting axially and forwardly from the tubular body of the quill.
- In accordance with other aspects of the present invention, the guide trough segments are subdivided into a continuous bottom comprising the outer rim of the helical support, with the side walls being segmented, detachably secured to the trough bottom, and readily replaceable when worn.
- These and other objects, features and advantages of the present invention will become more apparent upon reading the following detailed description in conjunction with the accompanying drawings.
-
-
Fig. 1 is a side view, with portions in section, of a conventional laying head; -
Fig. 2 is a perspective front view of the nose and guide trough assembly of the conventional laying head shown inFig. 1 ; -
Fig. 3 is a partially exploded perspective view of the conventional guide trough assembly shown inFigs. 1 and2 ; -
Fig. 4 is a rear perspective view of the nose of a laying head quill in accordance with an exemplary embodiment of the present invention, with the laying pipe and guide trough carried on a continuous helical support comprising an integral component of the nose; -
Fig. 5 is a front perspective of the nose depicted inFig. 4 ; -
Fig. 6 is a view showing one side of the nose depicted inFig. 5 ; -
Fig. 7 is a view showing the opposite side of the nose depicted inFig. 5 ; -
Fig. 8 is a sectional view on an enlarged scale taken along line 8-8 ofFig. 4 and showing details of trough segments in accordance with an exemplary embodiment of the present invention; and -
Figs. 9A and 9B are respectively perspective and side views of a guide trough side wall segment in accordance with an exemplary embodiment of the present invention. - In accordance with the present invention, the conventional assembly of the
nose 18 and separate disc-shaped trough support 30 depicted inFig. 1 is replaced by aunitary nose 36, an exemplary embodiment of which is depicted inFig. 4 . Theunitary nose 36 has a centraltubular body 38 provided at one end with amounting flange 40 adapted to be connected to thetubular body 12a of the conventional laying head quill 12 shown inFigs. 1-3 . A helical support, which may comprise acontinuous auger plate 42 configured as an unwinding spiral scroll, is permanently joined to thecentral body 38. - As can best be seen by additional reference to
Figs. 5-7 , theauger plate 42 extends continuously from themounting flange 40 to the distal end of thecentral body 38. A segment of theplate 42 carriesbrackets 44 on its rim. As can best be seen inFig. 4 , thebrackets 44 coact withclamps 46 to secure thelaying pipe 22 in its operative position. The remaining rim of theauger plate 42 is defined by a continuous collar serving as thebottom 48 of a channel-shaped guide trough 50. - By supporting both the
laying pipe 22 and theguide trough 50 on acontinuous auger plate 52 formed as an integral component of the cantileverednose 36, stress concentrations are significantly reduced. This in turn makes it possible to reduce the weight of thenose 36, with the result that the center of gravity of the laying head's rotating assembly is advantageously shifted rearwardly and closer to thebearings - With reference to
Figs. 8 ,9A and 9B , thesides 52 of theguide trough 50 are segmented and detachable secured to thebottom 48 by conventional fasteners which may comprisebolts 54 andnuts 56. An exemplary embodiment of a troughside wall segment 52 is depicted inFigs. 9A and 9B . - When individual
side wall segments 52 experience accelerated wear, they may be readily replaced without replacing others that experience lesser wear. - Preferably, the
side wall segments 52 are identical. The side wall segments may be cast or fabricated from light weight wear resistant materials, illustrative examples including aluminum, aluminum alloys, carbon fibers, thermoplastics, etc. Additionally, or alternatively, theinterior surfaces 52' of theside wall segments 52 may comprise or be coated with a wear resistant material, for example, a nano metal. - The foregoing description and drawings are merely illustrative of the principles of the present invention and are not to be construed in a limiting sense. Various changes are modifications will become apparent to those of ordinary skill in the art. All such changes and modifications are seen to fall within the scope of the invention as defined by the appended claims.
Claims (5)
- A tubular nose (36) adapted to project axially in cantilever fashion from the rotatable quill of a rolling mill laying head, said quill carrying a product guide having an entry end aligned with a rotational axis of the quill, and having an intermediate curved portion leading from said entry end to a delivery end communicating with a guide trough (50) providing a helical extension of said product guide, said nose (36) having an auger plate (42) configured and arranged to provide continuous support for said guide trough (50) and for the intermediate curved portion and delivery end of said product guide, said nose (36) further having a mounting flange (40) and a central body (38), wherein the auger plate (42) extends continuously from the mounting flange (40) to a distal end of the central body (38),
wherein said auger plate (42) is fabricated as an integral component of said nose (36). - Tubular nose according to claim 1 wherein an outer rim of said auger plate (42) comprises a bottom (48) of said guide trough (50).
- Tubular nose according to claim 1 or 2 wherein said continuous auger plate (42) is configured as an unwinding spiral scroll permanently joined to the central body (38).
- Tubular nose according to claim 1 wherein the tubular nose (36) has one end thereof configured and arranged to be detachably secured to said quill.
- Tubular nose according to claim 1 wherein the intermediate curved portion and delivery end of said product guide are secured by brackets on a rim of said auger plate (42).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/614,145 US20140070039A1 (en) | 2012-09-13 | 2012-09-13 | Rolling mill coil-forming laying head with unistructural path and deflector guide trough support |
US201261707510P | 2012-09-28 | 2012-09-28 | |
PCT/US2013/057993 WO2014042926A1 (en) | 2012-09-13 | 2013-09-04 | Rolling mill laying head |
EP13766740.8A EP2895281B1 (en) | 2012-09-13 | 2013-09-04 | Rolling mill laying head |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13766740.8A Division EP2895281B1 (en) | 2012-09-13 | 2013-09-04 | Rolling mill laying head |
EP13766740.8A Division-Into EP2895281B1 (en) | 2012-09-13 | 2013-09-04 | Rolling mill laying head |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3791972A1 true EP3791972A1 (en) | 2021-03-17 |
Family
ID=49237594
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13766740.8A Active EP2895281B1 (en) | 2012-09-13 | 2013-09-04 | Rolling mill laying head |
EP20195272.8A Withdrawn EP3791972A1 (en) | 2012-09-13 | 2013-09-04 | Rolling mill laying head |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13766740.8A Active EP2895281B1 (en) | 2012-09-13 | 2013-09-04 | Rolling mill laying head |
Country Status (12)
Country | Link |
---|---|
EP (2) | EP2895281B1 (en) |
JP (1) | JP6242900B2 (en) |
KR (1) | KR102090987B1 (en) |
CN (1) | CN104768669B (en) |
BR (1) | BR112015005525B1 (en) |
ES (1) | ES2868246T3 (en) |
IN (1) | IN2015DN02052A (en) |
MX (2) | MX2015003323A (en) |
PL (1) | PL2895281T3 (en) |
RU (1) | RU2632048C2 (en) |
TW (1) | TWI595936B (en) |
WO (1) | WO2014042926A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021521014A (en) | 2018-05-07 | 2021-08-26 | ルッスラ コーポレーションRussula Corporation | Coil forming laying head system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0554976A1 (en) * | 1992-02-05 | 1993-08-11 | Morgan Construction Company | Rod laying head with front and tail end ring control |
WO2003051553A1 (en) | 2001-12-14 | 2003-06-26 | Morgan Construction Company | Segmented ring guide for rolling mill laying head |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4242892A (en) * | 1979-04-26 | 1981-01-06 | Morgan Construction Company | Laying head with segmented laying pipe |
JPS62137609U (en) * | 1986-02-25 | 1987-08-29 | ||
SU1611492A1 (en) * | 1988-12-05 | 1990-12-07 | Филиал Всесоюзного научно-исследовательского и проектно-конструкторского института металлургического машиностроения им.А.И.Целикова | Turn-forming guide for wire winder |
JPH08215751A (en) * | 1995-02-21 | 1996-08-27 | Kobe Steel Ltd | Coil diameter controller in laying coiler |
DE19827349A1 (en) * | 1998-06-19 | 1999-12-23 | Schloemann Siemag Ag | Laying head of a coiler for wire |
DE19827348A1 (en) * | 1998-06-19 | 1999-12-23 | Schloemann Siemag Ag | Coil laying device for wire |
DE10011683A1 (en) | 2000-03-10 | 2001-09-13 | Sms Demag Ag | Laying head used for rod-like rolling material has a hollow shaft, a tubular holder made partially from a material which has a lower density than steel, and a tube for the rolling material |
US7011264B2 (en) | 2002-06-19 | 2006-03-14 | Morgan Construction Company | Laying head for rod rolling mill |
DE102004014264B3 (en) | 2004-03-24 | 2005-10-27 | Sms Meer Gmbh | Layers for fast-moving wire rod coming from a wire rod mill |
DE102007029811B3 (en) | 2007-06-27 | 2008-07-24 | Sms Meer Gmbh | Rotary tube coiler for filing of rolled wire, has wire withdrawn and discarded into windings at end of application tube, behind which rotary brake element is arranged |
US8024949B2 (en) | 2008-11-17 | 2011-09-27 | Siemens Industry, Inc. | Apparatus for decelerating and temporarily accumulating hot rolled product |
-
2013
- 2013-09-04 ES ES13766740T patent/ES2868246T3/en active Active
- 2013-09-04 CN CN201380058493.8A patent/CN104768669B/en active Active
- 2013-09-04 EP EP13766740.8A patent/EP2895281B1/en active Active
- 2013-09-04 PL PL13766740T patent/PL2895281T3/en unknown
- 2013-09-04 WO PCT/US2013/057993 patent/WO2014042926A1/en active Application Filing
- 2013-09-04 MX MX2015003323A patent/MX2015003323A/en active IP Right Grant
- 2013-09-04 RU RU2015113438A patent/RU2632048C2/en active
- 2013-09-04 IN IN2052DEN2015 patent/IN2015DN02052A/en unknown
- 2013-09-04 JP JP2015531954A patent/JP6242900B2/en active Active
- 2013-09-04 KR KR1020157008992A patent/KR102090987B1/en active IP Right Grant
- 2013-09-04 EP EP20195272.8A patent/EP3791972A1/en not_active Withdrawn
- 2013-09-04 BR BR112015005525-7A patent/BR112015005525B1/en active IP Right Grant
- 2013-09-11 TW TW102132717A patent/TWI595936B/en active
-
2015
- 2015-03-13 MX MX2019011368A patent/MX2019011368A/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0554976A1 (en) * | 1992-02-05 | 1993-08-11 | Morgan Construction Company | Rod laying head with front and tail end ring control |
WO2003051553A1 (en) | 2001-12-14 | 2003-06-26 | Morgan Construction Company | Segmented ring guide for rolling mill laying head |
Also Published As
Publication number | Publication date |
---|---|
TWI595936B (en) | 2017-08-21 |
JP6242900B2 (en) | 2017-12-06 |
CN104768669B (en) | 2016-11-02 |
MX2019011368A (en) | 2019-11-18 |
BR112015005525B1 (en) | 2020-11-17 |
RU2015113438A (en) | 2016-11-10 |
EP2895281A1 (en) | 2015-07-22 |
IN2015DN02052A (en) | 2015-08-14 |
CN104768669A (en) | 2015-07-08 |
KR102090987B1 (en) | 2020-03-19 |
TW201420227A (en) | 2014-06-01 |
JP2015531686A (en) | 2015-11-05 |
PL2895281T3 (en) | 2021-07-19 |
MX2015003323A (en) | 2015-10-22 |
EP2895281B1 (en) | 2021-02-24 |
WO2014042926A1 (en) | 2014-03-20 |
ES2868246T3 (en) | 2021-10-21 |
BR112015005525A2 (en) | 2017-07-04 |
KR20150053969A (en) | 2015-05-19 |
RU2632048C2 (en) | 2017-10-02 |
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