US3304023A - Method and apparatus for coiling strip - Google Patents

Method and apparatus for coiling strip Download PDF

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Publication number
US3304023A
US3304023A US368197A US36819764A US3304023A US 3304023 A US3304023 A US 3304023A US 368197 A US368197 A US 368197A US 36819764 A US36819764 A US 36819764A US 3304023 A US3304023 A US 3304023A
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US
United States
Prior art keywords
strip
pinch roll
pinch
roll
coiler
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US368197A
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English (en)
Inventor
O'brien Jeremiah Wagner
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.)
United Engineering and Foundry Co
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United Engineering and Foundry Co
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Filing date
Publication date
Application filed by United Engineering and Foundry Co filed Critical United Engineering and Foundry Co
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Publication of US3304023A publication Critical patent/US3304023A/en
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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
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • 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
    • B21C47/003—Regulation of tension or speed; Braking
    • 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
    • B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
    • 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
    • B21C47/32—Tongs or gripping means specially adapted for reeling operations
    • 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
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/3433—Feeding or guiding devices not specially adapted to a particular type of apparatus for guiding the leading end of the material, e.g. from or to a coiler
    • B21C47/3441—Diverting the leading end, e.g. from main flow to a coiling device

Definitions

  • the present invention may be used in various fields of endeavor, for the purpose of describing a specific embodiment thereof, its application to the coiling of hot metallic strip has been selected.
  • present-day methods of and apparatuses for coiling such strip as it issues from the last stand of a finishing train of a hot strip mill, it is customary to alternatively feed it to one of two or more tandemly arranged coilers, in which regard, since the mandrels of the coilers are driven at a speed greater than the delivery speed of the mill, all but approximately 500 ft. of the trailing end of the strip is coiled under tension.
  • the influence of tension not only enhances the opportunity of coiling tightly wound coils, but also greatly enhances the ability to guide the strip which significantly contributes to better formed coils which is a fundamental requisite in modern mills.
  • this looping of the strip had the tendency to allow certain transverse adjacent portions of the strip to enter the bite of the pinch rolls ahead of other transverse portions, i.e., the strip enters the pinch rolls on a bias, so that the pinch rolls themselves positively urge the strip laterally.
  • the difiiculty in restraining the strip against lateral movement was aggravated by misalign- 3,364,621; Patented Feb. 14, 1967 ICC ments of the pinch rolls and by the wear of the parts thereof, which added to the tendency of the strip to move laterally.
  • the net result was that the trailing end portion of the strip was unevenly wound about the mandrel. Since this portion may, in a given case, represent a third of the length of the coil, the seriousness of the problem becomes self-evident.
  • the present invention is addressed to a method of and apparatus for alleviating each of the aforesaid disadvantages.
  • the method herein disclosed also contemplates when a econd or third coiler is being employed, the additional step of employing the pinch rolls of a previous coiler to maintain a tension on the strip between the previous pinch rolls and the succeeding coiler.
  • the pinch rolls of the coilers other than the first need not be made shiftable relative to each other.
  • a novel pinch roll arrangement wherein means are provided for shifting one of the rolls relative to the other and wherein the shiftable pinch roll may be positioned with its axis located in a plane substantially perpendicw lar to the path of the strip or in a plane oblique relative to this path.
  • FIGURE 1 is a diagrammatical elevational view of the finishing arrangement of a hot strip mill showing the last stand of the finishing train thereof, in addition to three tandemly arranged pinch roll assemblies and coilers,
  • FIGURE 2 is an elevation view, partly in section, of the first pinch roll assemby shown in FIGURE 1,
  • FIGURE 3 is a partial sectional view, which section as taken on line IIIIII of FIGURE 2, of the pinch roll assembly shown in FIGURE 2, and
  • FIGURE 4 is a partial sectional view, the partial section being taken on line IVIV of FIGURE 2.
  • FIGURE 1 there is schematically illustrated the last stand 10 of a hot strip mill.
  • a battery of strip coilers which in the illustration consists of three in number, namely, 11, 12 and 13, reading from right to left.
  • a strip S moving in the direction indicated by the arrow, is conveyed from the stand 10 to the coilers by tables 14, 15 and 16.
  • Each coiler has its own cooperating pinch roll assembly 17, 18 .and 19, respectively, the pinch roll assembly 17 incorporating the structural features of the present invention. It is believed unnecessary to discuss in detail the characteristics of the stand 10, the coilers 11-13, or the tables 14- 16 as they are well-known in the rolling mill art.
  • the pinch roll assembly consists of a lower pinch roll 21 which is rotatably received in a frame 22, the opposite ends of the roll being provided with well-known bearing-chock assemblies, not shown.
  • FIGURE 2 shows that the roll 21 is located close to the upper opening of the throat 23 that extends between the bite of the pinch rolls and the mandrel of the coiler and that its upper peripheral surface falls substantially within the path of travel of the strip S.
  • the upper pinch roll 24 of the pinch roll assembly 17 is rotatably mounted in a pivotal frame 25, the opposite ends of this roll being received in well-known bearing-chock assemblies, not shown.
  • the frame 25 is raised and lowered through the agency of a piston cylinder assembly 25a. It is to be appreciated that while not shown, both of the pinch rolls are provided with a drive that rotates the rolls at the speed slightly in excess of the strip speed as it issues from the rolling mill. Since the upper pinch roll 24, as will be explained later, is moved arcuately relative to the lower pinch roll 21, the drive thereof may include a universal spindle.
  • FIGURE 3 shows one of these cranks which at the outer end thereof a gear 30 is secured.
  • the gear 30 meshes with a sector gear 31, the other end of the sector gear being keyed to a transversely arranged shaft 32.
  • This shaft is rotatably received in the frame members 29 and at its extreme opposite end an arm 32a is provided, to which is connected a piston cylinder assembly 33, the cylinder being carried by a support 33a which extends between the frame members 29.
  • the shaft 32 rotates the sector gear 31 and, in turn, the gear 30 which will rotate the cranks 28 and, accordingly, displace the shaft 26 so that the pinch roll 24 will move in an arcuate direction longitudinally of the strip around the upper periphery of the lower pinch roll 21 so to speak.
  • the pinch roll 24 may be moved to an off-center position as indicated in a full line in FIGURE 2 or to a second position where its axis falls within the vertical plane containing the axis of the lower pinch roll 21, which position is shown in outline form in FIGURE 2.
  • the pinch rolls are employed alternately to defleet the strip into an oblique path of travel or to serve as a strip tensioning means.
  • strip guiding rollers 34, 35 and 36 there is provided strip guiding rollers 34, 35 and 36.
  • the former two rolls have concentric collars that serve to restrain lateral movement of the strip.
  • the upper strip holddown roller 36 is connected to an arm 37 which is carried by the shaft 32.
  • the arm 37 the lower end of which is shown in section in this figure, takes the form of a concentric sleeve 38 which is supported by and rotates relative to the shaft 32.
  • an arm 39 To the one end of this sleeve, there is connected an arm 39, to the outer end of which the piston rod of a piston cylinder assembly 41 is connected.
  • This cylinder is also carried by the cross member 33a, which, as previously noted, is supported by the two frame members 29.
  • the pressure in the piston cylinder assembly 41 is maintained at a low magnitude so that upon operation of the piston cylinder assembly 33, the upper pinch roll 24 is adapted to engage the arm 37 of the roller 36 and displace it to a position intermediate the full line and dash line positions thereof shown in FIGURE 2. In this way the roller 36 will not interfere with the independent movement of the upper pinch roll 24.
  • the pivotal frame 25 that carries the upper pinch roll 24 is provided with a cam roller 42 arranged at the lower end of the strip holddown roller 36, the cam roller being shown best in FIGURE 4 As FIGURE 4 shows, the cam roller 42 is adapted to be engaged by a bearing 42a extending from the one end of the roller 36.
  • the strip will not have the tendency to loop or buckle at the entry side of the pinch roll assembly and the side guards will be better able to confine the strip from moving transversely. As a result, the last convolutions of the coil will be tightly formed and a properly formed coil will be assured.
  • the upper pinch roll of the pinch roll assembly 18 need not be provided with the ability to shift to the on-center position but the usual means will be provided for raising and lowering the upper pinch roll relative to the strip. Accordingly, prior to the strip being received by the coiler 12, the coiler will be brought to its operating speed and the upper pinch roll of the pinch roll assembly 18 lowered to engage the strip; the upper pinch roll 24 of the pinch roll assembly 17 will be shifted to its on-center position but held out of engagement with the strip by the operation of the piston cylinder assembly 25a in readiness to engage the trailing end thereof. The leading end of the strip will thus be coiled as in the case described relative to the coiler 11. Once the mandrel of the coiler 12 has established a tension between itself and the stand 10, the upper roll of the pinch roll assembly 18 will be raised away from the strip.
  • the upper pinch rolls of the pinch roll assemblies 17 and 18 will be lowered as previously explained with respect to the pinch roll 24, to subject the strip to tension between the two pinch roll assemblies and the coiler 12.
  • the tension developed by the pinch roll assembly 17 will prevent the strip from buckling at the entry side of the pinch roll assembly 18, thereby assuring proper guiding of the last convolutions of the strip.
  • the method and apparatus herein disclosed may be modified .to suit a particular condition. Accordingly, while the upper roll 24 of the pinch roll assembly 17 is disclosed as moving relative to the lower roll, the converse may just as well be employed. Also, the second pinch roll assembly may be constructed to operate in the same fashion as the first assembly, when strip is being coiled in the third coiler, if one is employed.
  • va strip tensioning device comprising the steps of:
  • said winding machines receiving and coiling successively issued strips
  • a strip tension device associated with each winding machine comprising the steps of:
  • a pinch roll apparatus for use with a coiler adapted to coi-l strip-like material comprising:
  • said means for moving said upper rolls towards said path of travel of the strip being connected to said frame to move said upper roll toward and away from said lower roll
  • said means for moving the strip-engaging means and said means for moving the upper pinch roll being so constructed and operated that on movement of the upper pinch roll in a direction toward said stripengaging means, the latter will be displaced to allow movement of the upper pinch roll.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
US368197A 1963-06-04 1964-05-18 Method and apparatus for coiling strip Expired - Lifetime US3304023A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22142/63A GB1046473A (en) 1963-06-04 1963-06-04 Method and apparatus for coiling strip

Publications (1)

Publication Number Publication Date
US3304023A true US3304023A (en) 1967-02-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
US368197A Expired - Lifetime US3304023A (en) 1963-06-04 1964-05-18 Method and apparatus for coiling strip

Country Status (5)

Country Link
US (1) US3304023A (de)
BE (1) BE648848A (de)
ES (1) ES300522A1 (de)
FR (1) FR1399843A (de)
GB (1) GB1046473A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000635A (en) * 1976-03-18 1977-01-04 Blaw-Knox Foundry & Mill Machinery, Inc. Strip deflector unit
US4054046A (en) * 1976-03-18 1977-10-18 Blaw-Knox Foundry & Mill Machinery, Inc. Strip deflector unit
US4063440A (en) * 1976-04-16 1977-12-20 Mesta Machine Company Quick-change coiler assembly for strip mills and the like
EP0790084A3 (de) * 1996-02-14 1998-04-29 Sms Schloemann-Siemag Aktiengesellschaft Haspelanlage für Bänder
US5967447A (en) * 1997-11-03 1999-10-19 Voith Sulzer Finishing Gmbh Continuously operating reel cutter with a winding section
KR100453435B1 (ko) * 1996-02-14 2006-01-27 에스엠에스 데마그 악티엔게젤샤프트 스트립용권취장치

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL177287C (nl) * 1974-08-13 1985-09-02 Hoesch Werke Ag Aandrijfinrichting voor bandvormig walsgoed.
DE19751410A1 (de) * 1997-11-14 1999-05-20 Mannesmann Ag Haspelanordnung zum Aufhaspeln von dünn gewalztem Fertigband

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2320659A (en) * 1941-09-17 1943-06-01 Gen Motors Corp Material handling device
US3100605A (en) * 1959-10-20 1963-08-13 Davy & United Eng Co Ltd Strip coiler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2320659A (en) * 1941-09-17 1943-06-01 Gen Motors Corp Material handling device
US3100605A (en) * 1959-10-20 1963-08-13 Davy & United Eng Co Ltd Strip coiler

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000635A (en) * 1976-03-18 1977-01-04 Blaw-Knox Foundry & Mill Machinery, Inc. Strip deflector unit
US4054046A (en) * 1976-03-18 1977-10-18 Blaw-Knox Foundry & Mill Machinery, Inc. Strip deflector unit
US4063440A (en) * 1976-04-16 1977-12-20 Mesta Machine Company Quick-change coiler assembly for strip mills and the like
EP0790084A3 (de) * 1996-02-14 1998-04-29 Sms Schloemann-Siemag Aktiengesellschaft Haspelanlage für Bänder
US5966978A (en) * 1996-02-14 1999-10-19 Sms Schloemann-Siemag Aktiengesellschaft Reeling unit for strip
CN1081495C (zh) * 1996-02-14 2002-03-27 Sms舒路曼-斯玛公司 用于钢带的卷取机装置
KR100453435B1 (ko) * 1996-02-14 2006-01-27 에스엠에스 데마그 악티엔게젤샤프트 스트립용권취장치
US5967447A (en) * 1997-11-03 1999-10-19 Voith Sulzer Finishing Gmbh Continuously operating reel cutter with a winding section

Also Published As

Publication number Publication date
ES300522A1 (es) 1964-12-01
FR1399843A (fr) 1965-05-21
BE648848A (de)
GB1046473A (en) 1966-10-26

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