US3926027A - Roll changing apparatus for a rolling mill or the like - Google Patents

Roll changing apparatus for a rolling mill or the like Download PDF

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Publication number
US3926027A
US3926027A US549129A US54912975A US3926027A US 3926027 A US3926027 A US 3926027A US 549129 A US549129 A US 549129A US 54912975 A US54912975 A US 54912975A US 3926027 A US3926027 A US 3926027A
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US
United States
Prior art keywords
rolls
car
members
mill
roll
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.)
Expired - Lifetime
Application number
US549129A
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English (en)
Inventor
Werner Krumme
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 Inc
Original Assignee
Wean United Inc
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 Wean United Inc filed Critical Wean United Inc
Priority to US549129A priority Critical patent/US3926027A/en
Application granted granted Critical
Publication of US3926027A publication Critical patent/US3926027A/en
Priority to GB2139/76A priority patent/GB1529926A/en
Priority to CA244,913A priority patent/CA1044172A/en
Priority to DE19762604375 priority patent/DE2604375A1/de
Priority to BR7600795A priority patent/BR7600795A/pt
Priority to ES445086A priority patent/ES445086A1/es
Priority to FR7603771A priority patent/FR2300629A1/fr
Priority to JP51014352A priority patent/JPS51145450A/ja
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEAN UNITED, INC., A CORP.OF OH
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEAN UNITED, INC., A CORP. OH.
Assigned to WEAN UNITED, INC. reassignment WEAN UNITED, INC. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). TO RELEASE SECURTIY DOCUMENT RECORDED AT REEL, FRAME 4792/307 RECORDED FEB. 26, 1987 Assignors: PITTSBURGH NATIONAL BANK
Assigned to UNITED ENGINEERING ROLLING MILLS, INC. reassignment UNITED ENGINEERING ROLLING MILLS, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WEAN INCORPORATED
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B31/00Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/10Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
    • B21B31/103Manipulators or carriages therefor

Definitions

  • the object of the present invention to provide a device for changing one or more rolls of a rolling mill or like device which will not require the services of a crane or alterations to the mill or device itself and which will permit accurate, positive, and relatively rapid removal and replacement of the roll thereby eliminating any possible damage to the adjacent parts, including roll damage.
  • a still further object of the present invention is to provide the aforesaid car with a counterweight to offset the weight of the rolls as the rolls are adjusted for displacement and moved into and out of the mill.
  • FIG. 1 is an elevational view, partly broken away, of a roll carrying car constructed in accordance with the present invention arranged on the operators side of a rolling mill showing the car in one of its operative positrons;
  • FIG. 2 is an enlarged plan view of the car shown in FIG. 1;
  • FIG. 3 is an enlarged view of the central portion of FIG. 2.
  • FIG. 1 there is shown a work roll changing car 10 being supported on a pair of spaced parallel rails 12 arranged on the operators side of a rolling mill, not shown, and which extends from a position remote from the window of the mill to a position adjacent thereto.
  • the car engages the rails 12 by two pairs of wheels 14 and 16 and is driven by a rack and pinion arrangement 18, which, in turn, is driven by a gear drive-electric motor assembly 19. While the other important elements of the car 10 will be described later in connection with FIGS.
  • a screw 30 and nut 32 in order to be able to rapidly but accurately adjust the roll carrying member 20 of the car 10, there is provided a screw 30 and nut 32.
  • the nut 32 is securely mounted against rotation in the member 20 and the screw 30 is driven in and through both the member 20 and nut 32 by a worm gear unit 34 connected to an electric motor 36.
  • a wear plate 38 located underneath the screw 30 and mounted on the top 40 of the member 21. This pressing of the screw 30 against the wear plate 38 forces the member 20 to be raised a controllable distance corresponding to a desired center of an upper roll.
  • the member 20 is provided with two opposed wings 41, shown only in FIG. 2, received in complimentary slots 43 formed in a U- shaped member 44 which is part of a frame 45.
  • the frame 45 has an extension 47 that carries the gear-drive 34 of the electric motor 36, the
  • FIG. 2 shows that the member 21 is connected to a parallel link system consisting of three links 48, 50, and 51. Links 48 and 50 run parallel to each other and connect member 21 to a counterweight 52 at the bottom, while the link 51 connects member 20 to the counterweight 52 at the top. Between links 48, 50 and 51 is another electric motor 53 which drives, by way of a worm gear (not shown), a screw jack 55, which upon operation presses against a wear plate at the underside portion of the link 51 to raise in parallel fashion the member 21 relative to the rolls. (This wear plate is not shown in the FIGS.
  • FIGS. 1, 2, and 3 To the right of the members 20 and 21, as one views FIGS. 1, 2, and 3, but best illustrated in FIG. 2, and still with reference to the construction of the car 10, rests the counterweight 52 located in the plane between the two back wheels 16.
  • the total weight of a pair of work rolls of the type illustrated in these FIGS. 1, 2, and 3 may be in a typical four high, hot or cold, rolling mill of the order of 40,000 lbs.
  • their total weight is partially off-set by the weight of the counterweight which is 5 to greater than the set of roll assemblies.
  • the electric motors 19, 36, and 53 are controlled from a control box 65 located to the right of the counterweight and supported by the car, as viewed in FIG. 1.
  • the car 10 In operation, and in referring to removing the worn rolls from the mill, the car 10 is brought to a position adjacent the mill window, by a rack and pinion arrangement 18. In this position, the need, if any, for exact adjustment for alignment with the centers of the worn rolls can be determined and made. After this, the ends of the rolls 26 are received in the openings 22 and 23 of the members and 21, respectively, by further operation of the rack and pinion arrangement 18, and depending on the nature of the four high roll arrangement, the top work roll may be moved vertically to permit raising of the lower work roll off of its back-up roll, or both rolls may be moved together in each case by operating the motor 53. In many cases, it may not be necessary to lower the upper work roll free of the upper back-up roll since a spaced relationship may have been previously assumed in preparation for the work roll changing.
  • the rolls 26 can be retracted to a position where they can be lowered by the car onto one of the two platforms 28 in a side-shifter device. If the bearing chocks are not nested or interfitted, stools will be inserted between the rolls, before the car releases the rolls in order to keep the top roll assembly from falling. It should be noted that the vertical dimensions of the stools are such that the rolls are maintained on fixed centers for both the minimum and maximum roll sizes. After this, the car 10 is further retracted to disengage the rolls and allows the platform carrying the old work rolls to move out from in front of the mill and the platform carrying the new stooled work rolls to move in front of the mill and in front of the car 10.
  • the stools can be removed and the platform moved to the side of the mill opposite to the side that the platform carrying the worn work rolls was moved and the car 10 carrying the new work roll set in a cantilever fashion is advanced to a position adjacent the mill window.
  • the new rolls can again be adjusted either simultaneously while maintaining an equal distance between themselves and/or the member 20 can be independently adjusted so that the new rolls will be properly aligned with respect to the driving couplings of the mill for automatic insertion of the rolls into the couplings.
  • the lower roll 26 can be lowered to its proper operating position on top of the lower back-up roll by again operating the motor 53.
  • An apparatus for removing and replacing rolls to and from a rolling mill or the like comprising:
  • said car including a counterweight mounted on one end arranged to offset at least a part of the weight of one or more of said rolls when supported by said car, two members carried by the other end of said car having portions for receiving and supporting in a cantilever fashion a different one of said rolls in a position parallel to their working positions when said rolls are in said mill,
  • An apparatus including means for supporting said members comprising a system of parallel links so constructed and arranged so as to cause a raising and lowering of said members in a manner that an equidistance is maintained between said members.
  • means for displacing said two members in unison includes a screw jack means
  • said screw jack means mounted to engage one of the links of said parallel link system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
US549129A 1975-02-11 1975-02-11 Roll changing apparatus for a rolling mill or the like Expired - Lifetime US3926027A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US549129A US3926027A (en) 1975-02-11 1975-02-11 Roll changing apparatus for a rolling mill or the like
GB2139/76A GB1529926A (en) 1975-02-11 1976-01-20 Roll changing apparatus for a rolling mill
CA244,913A CA1044172A (en) 1975-02-11 1976-02-03 Roll changing apparatus for a rolling mill or the like
DE19762604375 DE2604375A1 (de) 1975-02-11 1976-02-05 Walzenwechselvorrichtung fuer ein walzwerk oder eine aehnliche anlage
BR7600795A BR7600795A (pt) 1975-02-11 1976-02-09 Aparelho aperfeicoado para remover e substituir cilindros em laminadores
FR7603771A FR2300629A1 (fr) 1975-02-11 1976-02-11 Dispositif de changement de cylindres pour un laminoir ou machine similaire
ES445086A ES445086A1 (es) 1975-02-11 1976-02-11 Aparato mejorado para extraer y colocar de nuevo unos cilin-dros de una laminadora.
JP51014352A JPS51145450A (en) 1975-02-11 1976-02-12 Roll exchange device for rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US549129A US3926027A (en) 1975-02-11 1975-02-11 Roll changing apparatus for a rolling mill or the like

Publications (1)

Publication Number Publication Date
US3926027A true US3926027A (en) 1975-12-16

Family

ID=24191788

Family Applications (1)

Application Number Title Priority Date Filing Date
US549129A Expired - Lifetime US3926027A (en) 1975-02-11 1975-02-11 Roll changing apparatus for a rolling mill or the like

Country Status (8)

Country Link
US (1) US3926027A (de)
JP (1) JPS51145450A (de)
BR (1) BR7600795A (de)
CA (1) CA1044172A (de)
DE (1) DE2604375A1 (de)
ES (1) ES445086A1 (de)
FR (1) FR2300629A1 (de)
GB (1) GB1529926A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074558A (en) * 1977-02-17 1978-02-21 Gulf & Western Manufacturing Company Roll changing apparatus
DE3019059A1 (de) * 1980-05-19 1981-11-26 Maschinen- Und Werkzeugbau Gmbh, 4600 Dortmund Vorrichtung zum auswechseln der arbeitswalzen von walzgeruesten
US20070084565A1 (en) * 2005-10-14 2007-04-19 Bhs Corrugated Maschinen - Und Anlagenbau Gmbh Apparatus for the manufacture of corrugated board
US20180290417A1 (en) * 2014-12-04 2018-10-11 Bobst Mex Sa Tool-holder head, transport carriage and methods for mounting and removing a tool for a unit for converting a flat substrate
CN114505348A (zh) * 2022-03-10 2022-05-17 中冶陕压重工设备有限公司 用于箱体内辊子的换辊装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5594710A (en) * 1979-01-08 1980-07-18 Hitachi Ltd Rearranging apparatus for roll

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323345A (en) * 1951-01-28 1967-06-06 Blaw Knox Co Roll changing apparatus
US3866455A (en) * 1973-12-28 1975-02-18 Mesta Machine Co Mill roll changing system including a roll buggy

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905485A (en) * 1974-03-27 1975-09-16 Wean United Inc Roll changing device for a rolling mill and the like
JPS5334793A (en) * 1976-09-08 1978-03-31 Toyama Chem Co Ltd Novel penicillin oxides and cephalosporin oxides

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323345A (en) * 1951-01-28 1967-06-06 Blaw Knox Co Roll changing apparatus
US3866455A (en) * 1973-12-28 1975-02-18 Mesta Machine Co Mill roll changing system including a roll buggy

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074558A (en) * 1977-02-17 1978-02-21 Gulf & Western Manufacturing Company Roll changing apparatus
DE3019059A1 (de) * 1980-05-19 1981-11-26 Maschinen- Und Werkzeugbau Gmbh, 4600 Dortmund Vorrichtung zum auswechseln der arbeitswalzen von walzgeruesten
US20070084565A1 (en) * 2005-10-14 2007-04-19 Bhs Corrugated Maschinen - Und Anlagenbau Gmbh Apparatus for the manufacture of corrugated board
US7617856B2 (en) * 2005-10-14 2009-11-17 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Apparatus for the manufacture of corrugated board
CN1947997B (zh) * 2005-10-14 2010-12-15 Bhs波纹机械和设备制造有限公司 用于制造波纹纸板的装置
US20180290417A1 (en) * 2014-12-04 2018-10-11 Bobst Mex Sa Tool-holder head, transport carriage and methods for mounting and removing a tool for a unit for converting a flat substrate
US10696003B2 (en) * 2014-12-04 2020-06-30 Bobst Mex Sa Tool-holder head, transport carriage and methods for mounting and removing a tool for a unit for converting a flat substrate
CN114505348A (zh) * 2022-03-10 2022-05-17 中冶陕压重工设备有限公司 用于箱体内辊子的换辊装置

Also Published As

Publication number Publication date
ES445086A1 (es) 1977-05-16
CA1044172A (en) 1978-12-12
BR7600795A (pt) 1976-08-31
FR2300629B1 (de) 1979-06-29
JPS565602B2 (de) 1981-02-05
JPS51145450A (en) 1976-12-14
FR2300629A1 (fr) 1976-09-10
GB1529926A (en) 1978-10-25
DE2604375A1 (de) 1976-08-19

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Date Code Title Description
AS Assignment

Owner name: PITTSBURGH NATIONAL BANK

Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP.OF OH;REEL/FRAME:004458/0765

Effective date: 19850610

AS Assignment

Owner name: PITTSBURGH NATIONAL BANK

Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP. OH.;REEL/FRAME:004792/0307

Effective date: 19860630

Owner name: PITTSBURGH NATIONAL BANK,PENNSYLVANIA

Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP. OH.;REEL/FRAME:004792/0307

Effective date: 19860630

AS Assignment

Owner name: WEAN UNITED, INC.

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:PITTSBURGH NATIONAL BANK;REEL/FRAME:004925/0218

Effective date: 19880509

AS Assignment

Owner name: UNITED ENGINEERING ROLLING MILLS, INC.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WEAN INCORPORATED;REEL/FRAME:004920/0256

Effective date: 19880610