US3373590A - Multi-roll stands for the cold-rolling of thin, hard strips - Google Patents

Multi-roll stands for the cold-rolling of thin, hard strips Download PDF

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Publication number
US3373590A
US3373590A US463686A US46368665A US3373590A US 3373590 A US3373590 A US 3373590A US 463686 A US463686 A US 463686A US 46368665 A US46368665 A US 46368665A US 3373590 A US3373590 A US 3373590A
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United States
Prior art keywords
rolls
roll
working
backing
rolling
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Expired - Lifetime
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US463686A
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English (en)
Inventor
Knappe Hans Joachim
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Schloemann AG
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Schloemann AG
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Publication of US3373590A publication Critical patent/US3373590A/en
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    • 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
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls

Definitions

  • FIG.4 MULTI-ROLL STANDS FOR THE COLD-ROLLING OF THIN, HARD STRIPS Filed Jun 14, 1965 FIG.4
  • a multi-roll stand for the cold-rolling of thin, hard strips with an upper backing roll and a lower backing roll provided with driving means, two sets of upper supporting rollers and two sets of lower supporting rollers journalled on lateral supporting girders, with each of the supporting rollers bearing against one of the backing rolls for the frictional transmission of power, two upper intermediate rolls arranged between the two upper sets of supporting rollers and two lower intermediate rolls arranged between the two sets of lower supporting rollers, upper and lower reversing rolls bearing on the upper and lower backing rolls respectively and on the two upper and two lower intermediate rolls respectively, and two working rolls, one upper and one lower, each supported and frictionally driven by two of the intermediate rolls.
  • This invention relates to a multi-roll stand, for the cold-rolling of hard, thin strips.
  • rolling such stock as is known, an appreciable reduction per pass is attainable only with working rolls of extremely small diameter. Since the cross section of these small working rolls would no longer sufiice for the transmission of the requisite torque, and the roll pressure would cause considerable deflection, the working rolls are supplemented :by backing rolls, which support the working rolls on their roll bodies, and transmit the driving power to the working rolls by peripheral friction.
  • the working rolls are shifted out of the plane of the backing rolls, and, in the direction of this dispalecement, by way of intermediate rolls, are held by supporting rollers journalled on rigid supporting beams and bearing on the backing rolls.
  • the driving torque is transmitted to the working rolls both directly by the backing rolls and also by way of the supporting rollers and the intermediate rolls by peripheral friction, the intermediate rolls serving as reversing rolls.
  • This method of construction does not permit the use of extremely thin working rolls, on account of the requisite minimum size of the supporting rollers.
  • the object of this invention is, in the case of a roll stand with an upper and a lower positively driven backing roll, and with supporting rollers journalled on lateral supporting beams and bearing in each case on a backing roll, to provide the possibility of employing eX- ceedingly thin working rolls, while ensuring sufiicient transit space for the stock that is being rolled.
  • two intermediate rolls are in each case provided, which bear, on the one hand, against the supporting rollers, and, on the other hand, through a reversing roll in each case, against the upper or lower backing roll, and which in their turn support the working rolls, the working rolls being in power-transmitting frictional contact with the positively driven backing rolls by way of the intermediate rolls, and on the one hand the supporting rollers and on the other hand the reversing rolls.
  • a rolling device has indeed already become known in which each two intermediate rolls and one reversing roll are supported in each case against one outer backing roll.
  • at least two of the backing rolls have to be provided with a drive of their own, so that the fitting in of the set of rolls between the backing rolls of a normal quarto roll stand, and the change-over to a different principle of rolling, is precluded.
  • the roll stand according to this invention can on the contrary be changed, by putting in a different set of rolls, into a two-high stand, or can be changed in some other way.
  • a roll stand has also already been proposed in which two working rolls are each supported by two intermediate rolls bearing perpendicularly against a driven backing roll, these intermediate rolls bearing approximately horizontally, by way of a reversing roller, on a series, in each case, of supporting rollers, journalled in a rigid supporting beam.
  • One disadvantage of this roll stand resides in the fact that on account of the linear arrangement of the intermediate rolls, reversing rolls and supporting rollers, only a limited amount of wear of the same is admissible. In the event of the wear becoming too great, the gap between the intermediate rolls would become too wide, and a jamming of the working roll would therefore occur. Moreover the transit space for the stock is greatly restricted, which makes it diflicult to arrange the guide plates and the supply of cooling medium.
  • the construction according to the invention presents however a considerably greater transit space. Instead of two lateral reversing rolls, only one central reversing roll is required, which has three-fold support on its body. By this arrangement the gap between the intermediate rolls, even with increasing wear, can be kept constant, or even redluced, by diminishing the diameter of the reversing ro
  • the journals of the reversing rolls are fixedly located with their hearing sleeves, between lugs arranged upon the chocks, in a horizontal direction.
  • a two-armed lever to each of the bearing sleeves of the upper working roll is secured a two-armed lever, the fulcrum of which is located in a recess in the axial bearing member of the working and backing rolls, the piston rod of a cylinder secured to the said axial member and connected to a source of pressure fluid being directed from above on to the other arm of the lever.
  • FIGURE 1 shows a side view of a roll stand with an arrangement of rolls according to this invention
  • FIGURE 2 shows a portion of the side view, with details of the supporting of the rolls, on a larger scale
  • FIGURE 3 shows a horizontal section of the roll stand in the axial plane of the working rolls
  • FIGURE 4 shows a horizontal section in the axial plane of the intermediate rolls
  • FIGURE 5 shows details of the holding means for the working rolls.
  • cylinders 8 Between the upper and lower girders 5, 5 are vertically arranged cylinders 8, with pistons, which, when actuated by a pressure fluid, ensure a frictional driving contact of the supporting rollers 4 with the backing rolls 2, 2'.
  • the intermediate rolls 10 and 10' are supported by their journals in levers 13, 13' and 14, 14', which are pivotally connected in pairs by bolts 15.
  • the opposite free ends of in each case an upper and a lower lever, 13 and 14 or 13' and 14', are connected by bolts 16, 16 with cylinders 17 and with their piston rods 18.
  • By hydraulic or pneumatic actuation of the piston rods 18 the upper and lower levers 13 and 14 or 13' and 14 are pushed asunder, which leads to a spreading of the upper and lower pairs of levers 13, 13' and 14, 14', and therefore to a firm bearing of the intermediate rolls 10, 10 on the supporting rollers 4, and on the upper and lower reversing rolls 11, 11.
  • the reversing rolls 11, 11', intermediate rolls 10, 10' and working rolls 9, 9 are in an axial direction located by the front plate 19a of a yoke 19, which is rockably supported in bearing eyes 20 on the housing 1, 1.
  • levers 22 In order to maintain the upper working roll 9 always in contact with the intermediate rolls 10, levers 22 (FIG- URE 5) are accommodated on each of their bearing sleeves 21, in an eye 23. These levers extend through an aperture 24 in the front plate 19a of the yoke 19 into the interior of the yoke, and are rockable about a bearing point 25 in the aperture.
  • the piston of a cylinder 26 secured perpendicularly on the inside of the front plate 19a when supplied with pressure fluid, presses, by way of a piston rod 27, upon that arm of'the lever 22 which'projects into the interior of the yoke 19, whereby its other arm, with the bearing sleeve 21 and the working roll 9, is lifted.
  • the set of rolls consisting of the supporting rollers 4, the intermediate rolls 10, 10', the reversing rolls 11, 11 and the working rolls 9, 9', is exchangeable in a simple manner for two quarto rolls.
  • a multi-roll stand for the cold-rolling of thin, hard strips comprising: housings formed with window apertures, upper and lower chocks accommodated in the said window apertures, a positively driven upper backing roll journalled in the upper chocks, a positively driven lower backing roll journalled in the lower chocks, lateral girders mounted in the housings, two sets of upper supporting rollers journalled on some of said lateral girders and bearing against the upper backing roll, two sets of lower supporting rollers journalled on other of said lateral girders and bearing against the lower backing roll, two upper intermediate rolls arranged between raid two sets of upper supporting rollers each respectively bearing on said upper supporting rollers of each set, two lower intermediate rolls arranged between said two sets of lower supporting rollers each respectively bearing on said lower support ing rollers of each set, an upper reversing roll bearing directly on the upper backing roll and also on both the upper intermediate rolls, and a lower reversing roll bearing directly on the lower backing roll and also on both the lower intermediate roll so that each of the intermediate rolls is

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
US463686A 1964-06-23 1965-06-14 Multi-roll stands for the cold-rolling of thin, hard strips Expired - Lifetime US3373590A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT539664A AT256003B (de) 1964-06-23 1964-06-23 Mehrwalzengerüst

Publications (1)

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US3373590A true US3373590A (en) 1968-03-19

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US463686A Expired - Lifetime US3373590A (en) 1964-06-23 1965-06-14 Multi-roll stands for the cold-rolling of thin, hard strips

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US (1) US3373590A (de)
AT (1) AT256003B (de)
DE (2) DE1923418U (de)
GB (1) GB1055755A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523439A (en) * 1966-03-30 1970-08-11 Schloemann Ag Multiroll stands
US3546914A (en) * 1966-06-28 1970-12-15 Schloemann Ag Multi-roll stands
DE2907247A1 (de) * 1978-02-23 1979-08-30 Sendzimir Inc T Gruppenkaltwalzwerk
US4197731A (en) * 1978-05-19 1980-04-15 T. Sendzimir, Incorporated Rolling mill capable of increased torque transmission
US4248073A (en) * 1979-01-26 1981-02-03 T. Sendzimir, Inc. Cluster type cold rolling mill
US5165266A (en) * 1991-11-04 1992-11-24 International Rolling Mill Consultants, Inc. Chockless roll support system
CN105964691A (zh) * 2016-03-31 2016-09-28 中国重型机械研究院股份公司 一种新型十辊钢板冷轧机结构
CN113546965A (zh) * 2021-08-13 2021-10-26 宝鸡市荣豪钛业有限公司 一种轧机辊系的背衬辊结构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132122B (en) * 1982-12-16 1986-05-29 Sumitomo Metal Ind Rolling mill
JPS59209408A (ja) * 1983-05-05 1984-11-28 インテグレイテツド　インダストリアル　システムズ　インコ−ポレイテツド 横方向支え装置
US4768366A (en) * 1987-04-30 1988-09-06 Tadeusz Sendzimir Wide strip mill using pressure elements
USD888379S1 (en) * 2018-01-26 2020-06-30 Glideforce Fitness, Llc Exercise boot

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479974A (en) * 1943-05-05 1949-08-23 Armzen Company Design and construction of rolling mills
US3076360A (en) * 1958-08-22 1963-02-05 Sendzimir Tadeusz Clam shell cold rolling mill
DE1169402B (de) * 1958-08-12 1964-05-06 Schloemann Ag Mehrwalzengeruest
US3147648A (en) * 1962-06-26 1964-09-08 Sendzimir Inc T Strip mill with roll cartridge
US3169423A (en) * 1959-12-03 1965-02-16 Davy & United Eng Co Ltd Rolling mills

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479974A (en) * 1943-05-05 1949-08-23 Armzen Company Design and construction of rolling mills
DE1169402B (de) * 1958-08-12 1964-05-06 Schloemann Ag Mehrwalzengeruest
US3076360A (en) * 1958-08-22 1963-02-05 Sendzimir Tadeusz Clam shell cold rolling mill
US3169423A (en) * 1959-12-03 1965-02-16 Davy & United Eng Co Ltd Rolling mills
US3147648A (en) * 1962-06-26 1964-09-08 Sendzimir Inc T Strip mill with roll cartridge

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523439A (en) * 1966-03-30 1970-08-11 Schloemann Ag Multiroll stands
US3546914A (en) * 1966-06-28 1970-12-15 Schloemann Ag Multi-roll stands
US3695082A (en) * 1966-06-28 1972-10-03 Schloemann Ag Multi-roll stands
DE2907247A1 (de) * 1978-02-23 1979-08-30 Sendzimir Inc T Gruppenkaltwalzwerk
US4197731A (en) * 1978-05-19 1980-04-15 T. Sendzimir, Incorporated Rolling mill capable of increased torque transmission
US4248073A (en) * 1979-01-26 1981-02-03 T. Sendzimir, Inc. Cluster type cold rolling mill
US5165266A (en) * 1991-11-04 1992-11-24 International Rolling Mill Consultants, Inc. Chockless roll support system
CN105964691A (zh) * 2016-03-31 2016-09-28 中国重型机械研究院股份公司 一种新型十辊钢板冷轧机结构
CN105964691B (zh) * 2016-03-31 2017-12-15 中国重型机械研究院股份公司 一种新型十辊钢板冷轧机结构
CN113546965A (zh) * 2021-08-13 2021-10-26 宝鸡市荣豪钛业有限公司 一种轧机辊系的背衬辊结构

Also Published As

Publication number Publication date
DE1923418U (de) 1965-09-16
AT256003B (de) 1967-08-10
GB1055755A (en) 1967-01-18
DE1452071A1 (de) 1968-12-12

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