US3861189A - Four-high mill frame structure - Google Patents

Four-high mill frame structure Download PDF

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Publication number
US3861189A
US3861189A US413236A US41323673A US3861189A US 3861189 A US3861189 A US 3861189A US 413236 A US413236 A US 413236A US 41323673 A US41323673 A US 41323673A US 3861189 A US3861189 A US 3861189A
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US
United States
Prior art keywords
working
roller
mounting
pertaining
stands
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
US413236A
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English (en)
Inventor
Herbert Lindermann
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.)
Vodafone GmbH
Original Assignee
Fried Krupp AG
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 Fried Krupp AG filed Critical Fried Krupp AG
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Publication of US3861189A publication Critical patent/US3861189A/en
Assigned to MANNESMANN AKTIENGESELLSCHAFT, 4000 DUSSELDORF, GERMANY reassignment MANNESMANN AKTIENGESELLSCHAFT, 4000 DUSSELDORF, GERMANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FRIED, KRUPP GMBH
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/10—Interchanging 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
    • B21B31/106—Vertical displacement of rolls or roll chocks during horizontal roll changing

Definitions

  • the first and second [30] F i A li ti P i it D t mounting means with the working roller means sup- 9 1972 Germany 7254735 ported thereby are movable from an elevated position l' representing the working position of the working rol- [52] us CL 72/238 ler means to a lowered position representing the with- [Sl] Int. Cl 31/08 drawal or exchange position for the working mum 58 Field of Search Together................l.
  • the present invention relates to a four-high mill frame structure with two supporting rollers and two working rollers which respectively are journalled in separate mounting members arranged in the roller stand, and with a hydraulic roller feed for which below the lower support roller mounting members there are respectively arranged main working cylinders.
  • roller changing rails are provided which extend through the windows of the roller stand.
  • the lower working roller mounting members are lowered onto said rails and are movable thereon by means of a carriage system.
  • the upper roller mounting members are lowered and more specifically until they rest on bolts which are movable out of the lower working roller mounting members.
  • the upper roller mounting members will then be suspended below the lower working roller mounting members, locked thereto and together therewith can be moved out of the roller stand. Subsequently, however, for instance in the post-machining of the rollers, it is necessary to disengage the interlocked rollers.
  • This heretofore known arrangement is relatively expensive and complicated and requires an additional operation and axial holding devices and is not quite satisfactory with regard to the safety of operation.
  • FIG. 1 is a diagrammatic view of the window of a roller stand in milling position.
  • FIG. 2 illustrates a view similar to that of FIG. 1 but with the rollers in position for exchange.
  • FIG. 3 illustrates a view similar to that of FIGS. 1 and 2, but with the working roller set moved out.
  • FIG. 4 is a view similar to that of FIG. 3 with the working roller set in working position.
  • FIG. 5 is a side view of FIG. 1 and on its left side shows the two working rollers in their exchange position or in their position of withdrawal.
  • FIG. 6 is a side view of FIG. 3.
  • the four-high mill frame structure according to the present invention is characterized primarily in that the working roller mounting members of each frame side are each equipped with two supporting cams which project in and counter to the milling direction and which extend into the range of guiding blocks interconnecting the inner sides of the windows of the stand.
  • the frame structure according to the present invention is furthermore characterized in that when the main working cylinder occupies its milling position the upper working roller mounting members are positively con nected to the lower working roller mounting members, and the lower working roller mounting members are positively connected to the guiding blocks while in roller exchange position with the lower supporting roller mounting members lowered, also the upper working roller mounting members are lowered to a respective lesser extent and in this position all supporting cams rest on a roller exchange rail extending all the way through and located in each guiding block, and are positively interconnected in the horizontal direction, the complete working roller set being movable by means of the working roller mounting members in axial direction of the rollers out of the frame structure.
  • the frame structure according to the invention is furthermore characterized in that the upper and lower working roller mounting members are, with regard to their shape, designed in conformity with each other in such a way that the respective positive connections in the milling position and in the roller exchange position are realized exclusively by a lifting and lowering of the mounting members by means of the hydraulic roller feeding means.
  • a roller stand 1 there are arranged a lower supporting roller mounting member or chock 2, an upper supporting roller mounting member 3, a lower working roller mounting member 4, and an upperworking roller mounting member 5. Journalled in said mounting members are a lower supporting or backup roller 6, an upper supporting roller 7, a lower working roller 8, and an upper working roller 9.
  • a hydraulic roller feeding or adjustment system 10 is located below the lower supporting roller mounting member 2.
  • Connected to the jaws or sides of the window of the stand are two guiding blocks 11 which have passage grooves 12 and support roller exchange rails 13.
  • the lower and the upper working roller mounting members 4 and 5 are provided with supporting cams or arms 14 and 15 which extend into the grooves 12.
  • balancing cams 16 of the upper working roller mounting member 5 extend over the guiding blocks 11.
  • Locking cams 17 on the lower working roller mounting members 4 extend into locking pockets 18 on the upper working roller mounting member 5 and lock the working roller mounting members 4 and 5 in axial direction of the rollers with regard to each other in milling position as well as also in roller exchange position.
  • Locking groove 19, which extends from the middle of the guiding block 11 upwardly to the groove 12 serves for receiving the supporting cam 14 of the lifted lower working roller mounting member 4 and locks the same likewise in axial direction of the rollers with regard to the guiding blocks 11.
  • In each guiding block 11 there are arranged three hydraulic balancing elements 20 (FIG. 3) by means of which the mounting members can be braced against each other and can be balanced.
  • this hydraulic roller feeding system 10 When the hydraulic roller feeding system is in the milling position shown in FIG. 1, this hydraulic roller feeding system 10 will by means of the lower supporting roller mounting member 2 press all rollers against each other.
  • the upper supporting roller mounting member 3 will serve as counter bearing.
  • the height of the locking groove 19 and of course also the locking pocket 18 is greater than the vertical movement of the lower roller mounting member 4 to be expected in the milling operation.
  • the lower supporting roller mounting members 2 are lowered into the position shown in FIG. 2.
  • the lower working roller mounting members 4 are lowered and with their supporting cams l4 engage and rest upon the roller exchange rails.
  • the upper working roller mounting members 5 take part in the first portion of this lowering movement until their supporting cams likewise seat upon the roller exchange rails 13.
  • the lower working roller mounting members 4 are disengaged from the guiding blocks 11 and thus can be moved in axial direction of the rollers.
  • the upper working roller mounting members 5 are taken along during this axial movement.
  • the balancing elements 20 do not take part in, nor are affected by, the roller exchange. A separation and subsequent connection of the hydraulic connections is not necessary.
  • a four-high mill frame structure which includes two oppositely located roller stands each being provided with window means and each comprising a lower mounting member and an upper mounting member in vertically spaced relationship to the pertaining lower mounting member, each two mounting members of one and the same stand being slidably arranged in the pertaining window means thereof, an upper and a lower supporting roller respectively supported by said upper and lower mounting members, each of said stands also comprising first and second working roller means superimposed upon each other and interposed between said upper and lower rollers of the pertaining stand, each of said stands also comprising first and second mounting means respectively supporting said first and second working roller means, a first and a second pair of guiding blocks respectively connected to said stands atthe respective windows, the guiding blocks of each pair of guiding blocks respectively being connected to opposite sides of the pertaining window for guiding said first and second mounting means along vertical and horizontal planes, hydraulic actuating means associated with and arranged below said lower mounting members of said stands and operable selectively to lift said first and second mounting means with the working rollers supported thereby into an elevated position

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Grinding (AREA)
  • Metal Rolling (AREA)
US413236A 1972-11-09 1973-11-06 Four-high mill frame structure Expired - Lifetime US3861189A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2254735A DE2254735A1 (de) 1972-11-09 1972-11-09 Quartowalzgeruest

Publications (1)

Publication Number Publication Date
US3861189A true US3861189A (en) 1975-01-21

Family

ID=5861174

Family Applications (1)

Application Number Title Priority Date Filing Date
US413236A Expired - Lifetime US3861189A (en) 1972-11-09 1973-11-06 Four-high mill frame structure

Country Status (8)

Country Link
US (1) US3861189A (de)
JP (1) JPS49134556A (de)
AU (1) AU6227673A (de)
BE (1) BE807019A (de)
DE (1) DE2254735A1 (de)
FR (1) FR2206139B1 (de)
IT (1) IT999252B (de)
NL (1) NL7314735A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2437050A1 (de) * 1974-08-01 1976-02-12 Schloemann Siemag Ag Arbeitswalzenschnellwechselvorrichtung fuer walzgerueste
US4763505A (en) * 1986-03-04 1988-08-16 Fried. Krupp Gmbh Rolling mill stand with roll replaceability
US6408667B1 (en) 2000-10-26 2002-06-25 Bethlehem Steel Corporation Four-high mill stand roll change device, a method of retrofit, and a roll change device therefrom
WO2017158306A1 (fr) 2016-03-17 2017-09-21 Fives Dms Laminoir pour bande metallique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190099A (en) * 1961-10-20 1965-06-22 United Eng Foundry Co Roll changing apparatus
US3446050A (en) * 1965-12-06 1969-05-27 United Eng Foundry Co Rolling mills
US3583194A (en) * 1968-03-20 1971-06-08 Us Steel Corp The Horizontal roll stand for slab mill
US3593554A (en) * 1968-08-09 1971-07-20 Davy & United Eng Co Ltd Rolling mills
US3691809A (en) * 1971-02-03 1972-09-19 Mesta Machine Co Mill roll changing arrangement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1355662A (en) * 1970-06-15 1974-06-05 Davy Loewy Ltd Rolling mills

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190099A (en) * 1961-10-20 1965-06-22 United Eng Foundry Co Roll changing apparatus
US3446050A (en) * 1965-12-06 1969-05-27 United Eng Foundry Co Rolling mills
US3583194A (en) * 1968-03-20 1971-06-08 Us Steel Corp The Horizontal roll stand for slab mill
US3593554A (en) * 1968-08-09 1971-07-20 Davy & United Eng Co Ltd Rolling mills
US3691809A (en) * 1971-02-03 1972-09-19 Mesta Machine Co Mill roll changing arrangement

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2437050A1 (de) * 1974-08-01 1976-02-12 Schloemann Siemag Ag Arbeitswalzenschnellwechselvorrichtung fuer walzgerueste
US4763505A (en) * 1986-03-04 1988-08-16 Fried. Krupp Gmbh Rolling mill stand with roll replaceability
US6408667B1 (en) 2000-10-26 2002-06-25 Bethlehem Steel Corporation Four-high mill stand roll change device, a method of retrofit, and a roll change device therefrom
WO2017158306A1 (fr) 2016-03-17 2017-09-21 Fives Dms Laminoir pour bande metallique
FR3048899A1 (fr) * 2016-03-17 2017-09-22 Fives Dms Laminoir pour bande metallique
CN108778541A (zh) * 2016-03-17 2018-11-09 法孚斯德姆斯公司 用于金属带材的轧机
US10882089B2 (en) 2016-03-17 2021-01-05 Fives Dms Rolling mill for metal strip

Also Published As

Publication number Publication date
AU6227673A (en) 1975-05-08
JPS49134556A (de) 1974-12-25
DE2254735A1 (de) 1974-05-22
BE807019A (fr) 1974-03-01
FR2206139A1 (de) 1974-06-07
FR2206139B1 (de) 1977-03-11
IT999252B (it) 1976-02-20
NL7314735A (de) 1974-05-13

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MANNESMANN AKTIENGESELLSCHAFT, 4000 DUSSELDORF, GE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:FRIED, KRUPP GMBH;REEL/FRAME:005682/0168

Effective date: 19891208