US3557595A - Universal rolling mill - Google Patents

Universal rolling mill Download PDF

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Publication number
US3557595A
US3557595A US712410A US3557595DA US3557595A US 3557595 A US3557595 A US 3557595A US 712410 A US712410 A US 712410A US 3557595D A US3557595D A US 3557595DA US 3557595 A US3557595 A US 3557595A
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US
United States
Prior art keywords
rolls
vertical
rolling
horizontal
pair
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
US712410A
Other languages
English (en)
Inventor
Karl Illert
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.)
Siegener Maschinenbau GmbH
Original Assignee
Siegener Maschinenbau GmbH
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 Siegener Maschinenbau GmbH filed Critical Siegener Maschinenbau GmbH
Application granted granted Critical
Publication of US3557595A publication Critical patent/US3557595A/en
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
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/001—Convertible or tiltable stands, e.g. from duo to universal stands, from horizontal to vertical stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
    • B21B13/10—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
    • B21B13/12—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process axes being arranged in different planes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/06—Cassettes

Definitions

  • the universal rolling mill disclosed is designed for alternative employment for rolling either beams or plate.
  • the rolling mill comprises housings for supporting a frame that, in turn, receives a pair of horizontal rolls with their chocks.
  • the frame when rolling beams, supports a pair of vertical rolls and their chocks located in a co-planar relationship with the horizontal rolls.
  • the frame When rolling plate, supports the chocks of two pairs of vertical rolls located within the region of the circumference of the horizontal rolls.
  • the frame is also provided with two pairs of screws for independently adjusting each pair of vertical rolls when rolling plate or by means of a clutch synchronously adjusting the vertical rolls when rolling beams.
  • the housings are each provided with screws for adjusting the horizontal rolls.
  • Pairs of horizontal and vertical rolls are also used for rolling fiat products.
  • the vertical rolls commonly referred to as the edging rolls, are employed to work the edges on either side of the flat product passing through the horizontal rolls.
  • the width of this flat product must be less than the body length of the horizontal rolls and, furthermore, the body length of the vertical rolls, to have the desired edging effect, must be greater than the thickness of the rolled product.
  • edging rolls unlike the vertical rolls in universal beam mills, cannot be arranged in the same vertical plane as the horizontal rolls. Consequently, the pairs of vertical rolls are supported in special edging mill stands arranged immediately in front of and at the back of the horizontal roll stand. These edging mill stands are in their best location when arranged so close to the horizontal mill stand such that the vertical rolls are located where the usual rolled product guides would be positioned. It is then practically impossible to adapt guides for rolled products entering and leaving the roll pass.
  • the object of the invention is to eliminate the aforedescribed disadvantages of rolling mills employed for rolling flat steel products.
  • the aim is thus to design a rolling mill for reducing flat steel products so that the vertical edging rolls do not have to be mounted in separate mill stands in front and at the back of the horizontal rolls, and that the rolling planes of the vertical edging rolls continue to be close to the rolling plane of the horizontal rolls.
  • a further object is to enable the rolling mill to be utilized to capacity, even should there be no orders for rolling flat products.
  • a universal mill stand in which the horizontal and vertical rolls, with their chocks, are mounted in a common guide frame or cassette and by means thereof can be laterally traversed into and out of the roll housing.
  • the universal mill stand is provided with screw-down screws for adjusting the vertical rolls supported in the guide frame.
  • the guide frame, or cassette permits either a pair of vertical rolls to be mounted in the vertical rolling plane containing the horizontal rolls, or two pairs of vertical rolls to be mounted in a desired relationship relative to said plane.
  • the guide frame is preferably provided with two pairs of screw-down screws, each pair being located in the rolling plane of the two vertical rolls.
  • a universal mill as taught by the present invention offers, on the one hand, the advantage of a compact inexpensive construction and, on the other hand, the possibility for use to roll beams, joists, rails or special sections in addition to flat steel products.
  • the present invention also provides that the rolling planes of the two pairs of vertical rolls be arranged in the region of the circumference of the horizontal rolls. As a result, the bite of the edging rolls will be effective close to the opening of the two horizontal rolls. This will insure utmost efiiciency of the edging rolls without giving rise to guiding problems when reducing flat products.
  • the chocks for both pairs of vertical rolls can be carried either directly on the side Walls of the guide frame or on the end faces of liners located in parallel therewith in the guide frame.
  • the possibility is thus provided to employ the same guide frame, or cassette, for mounting a set of rolls for reducing flat products or a set of rolls for shaping beams, joists, rails or special sections.
  • Another feature of the invention is that a separate adjusting motor is provided for each of the two pairs of screw-down screws and that said motors can be individually or jointly operated by selective operation of a clutch.
  • This arrangement also provides a comparatively simple means for changing the mode of operation of the roll stand for rolling either flat products or beams.
  • each universal rolling mill stand is usually provided with several exchangeable guide frames, those guide frames not in use can be set up in readiness for a change in schedule.
  • the down-times when changing from one product to another will be only as long as it takes to exchange the guide frames. The periods the rolling mill remains idle are thus minimized.
  • the universal mill stands illustrated in FIGS. 1 to 4 of the drawing consist mainly of the roll housings 2 and the guide frame 3, also referred to as the cassette, which can be laterally advanced into and withdrawn from the roll housings.
  • the frame 3 is designed to accommodate either the horizontal roll set 4 together with the set of vertical rolls 5 as shown in FIGS. 1 and 2 or the set of horizontal rolls 4 together with sets of vertical rolls 5a and 5b as shown in FIGS. 3 and 4.
  • the two horizontal rolls 4 are received in chocks 6 carried direct between the two walls of the guide frame 3, as clearly shown in FIG. 2.
  • the vertical rolls 5 are adjustably mounted in chocks 7 and likewise retained between the side walls of the guide frame 3.
  • the pair of horizontal rolls 4 are received in the chocks 6 mounted directly between the side walls of the guide frame 3.
  • Chocks 7a and 7b are employed for mounting the two pairs of vertical rolls 5a and 5b.
  • these chocks are retained by the side walls of the guide frame 3 and, on the other hand, they are carried in special liners 8 inserted in the guide frame 3.
  • the rolling planes of the two pairs of vertical rolls 5a and 5b are laterally displaced in relation to the rolling plane of the pair of horizontal rolls 4 so that the pairs of vertical rolls 5a and 5b are located immediately in front and at the back of the vertical plane axes of rotation of the pair of horizontal rolls 4.
  • the vertical rolls can be readily adjusted to achieve the desired edging effect between the bodies of the horizontal rolls 4 on a flat product. This is shown by dot-and-dash lines in FIG. 3.
  • the set of horizontal rolls 4 in the universal mill stand are adjusted in the usual manner by screw-down screws 9 mounted in the roll housings 2, as illustrated in FIGS. 2 and 4.
  • screw-down screws 10a and 10b are mounted direct in the guide frame 3 and employed for adjusting the pair of vertical rolls 5 or pairs of vertical rolls 5a and 5b.
  • the invention provides for two pairs of screw-down screws 10a and 10b in the guide frame 3, the center lines of both pairs of screws 10a and 10b being so located that when two sets of vertical rolls 5a and 5b are ins alled in the 4 guide frame 3 the screws are located in the rolling plane of both said sets of vertical rolls 5a and 5b.
  • the two pairs of screw-down screws 10a and 10b are individually driven and the respective drives 11a and 11b can be operated by means of a clutch 12 jointly, as shown in FIG. 1, or separately, as shown in FIG. 3.
  • the two drives are coupled by the clutch only when one pair of vertical rolls 5 is installed in the guide frame 3, as shown in FIGS. 1 and 2. This arrangement insures that the two pairs of screw-down screws 10a and 10b will be operated synchronously to thereby attain uniform distribution of the screw-down pressure on the chocks 7.
  • the coupled connection between the two drives 11a and 11b must be disengaged by means of the clutch 12 when rolling flat steel products when the two pairs of vertical rolls 5a and 5b are to be independently adjusted to ensure effective use of the vertical rolls 5a and 5b on the sides of the fiat product.
  • a universal rolling mill alternatively employing two different roll arrangements for processing different products, comprising:
  • a frame adapted to be supported by said housings in a manner that said frame is traversable into and out of said housings for the purpose of changing one of said roll arrangements arranged in said mill for the other roll arrangement awaiting insertion into said mill;
  • said frame receiving alternative sets of vertical rolls to form with a pair of horizontal rolls said two different roll arrangements;
  • said alternative sets of vertical rolls comprising a first roll set made up of a pair of vertical roll assemblies carried by said frame and whose axes fall within said vertical plane, and a second roll set made up of two pairs of vertical roll assemblies carried by said frame and whose axes of each pair fall on each side of said vertical plane;
  • a universal rolling mill according to claim 1 wherein separate pairs of horizontal roll assemblies are employed with said alternative sets of vertical roll assemblies, and wherein one of the horizontal-vertical roll assemblies is employed to produce a structural shaped product and the other horizontal-vertical roll assembly is employed to produce a fiat shaped product.
  • a universal rolling mill according to claim 1 wherein the axes of each pair of vertical roll assemblies of said second roll set are contained within the circumferential limits of said horizontal rolls.
  • a universal rolling mill according to claim 1 further comprising:
  • said pair of vertical roll assemblies of said first set including roll chocks engaging said vertical surfaces;
  • said two pairs of vertical roll assemblies of said second set including roll chocks engaging said vertical surfaces;

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
US712410A 1967-03-17 1968-03-12 Universal rolling mill Expired - Lifetime US3557595A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0108898 1967-03-17

Publications (1)

Publication Number Publication Date
US3557595A true US3557595A (en) 1971-01-26

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ID=7529113

Family Applications (1)

Application Number Title Priority Date Filing Date
US712410A Expired - Lifetime US3557595A (en) 1967-03-17 1968-03-12 Universal rolling mill

Country Status (5)

Country Link
US (1) US3557595A (de)
DE (1) DE1602139A1 (de)
ES (1) ES350330A1 (de)
FR (1) FR1552702A (de)
GB (1) GB1164253A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757556A (en) * 1971-03-17 1973-09-11 Nippon Kokan Kk Method of roughing slab to predetermined width and apparatus thereof
US3848447A (en) * 1972-11-06 1974-11-19 Metalform Ab Rolling method and a rolling mill for carrying out the method
US6134935A (en) * 1998-07-15 2000-10-24 Sms Schloemann-Siemag Aktiengesellschaft Apparatus and method for determining and setting a stand center and adjusting positions of a roll stand

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2534647C3 (de) * 1975-08-02 1981-04-16 Schloemann-Siemag AG, 4000 Düsseldorf Universal-Trägerstrasse
GB2181681B (en) * 1985-10-22 1989-02-01 British Steel Plc Improvements in rolling universal flats
DE3834587A1 (de) * 1988-10-11 1990-04-12 Schloemann Siemag Ag Verfahren und vorrichtung zur einstellung und zur veraenderung der hoehe der durchlaufebene des walzgutes durch walzen der walzgerueste eines formstahlwalzwerkes
DE19714216A1 (de) * 1997-04-07 1998-10-08 Schloemann Siemag Ag Walzenstraße zum Walzen von Flachstahl

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757556A (en) * 1971-03-17 1973-09-11 Nippon Kokan Kk Method of roughing slab to predetermined width and apparatus thereof
US3848447A (en) * 1972-11-06 1974-11-19 Metalform Ab Rolling method and a rolling mill for carrying out the method
US6134935A (en) * 1998-07-15 2000-10-24 Sms Schloemann-Siemag Aktiengesellschaft Apparatus and method for determining and setting a stand center and adjusting positions of a roll stand

Also Published As

Publication number Publication date
GB1164253A (en) 1969-09-17
ES350330A1 (es) 1969-05-01
DE1602139A1 (de) 1970-05-06
FR1552702A (de) 1969-01-03

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