US3659450A - Rolling mill or calendar with crown control of the rolls for rolling flat material - Google Patents

Rolling mill or calendar with crown control of the rolls for rolling flat material Download PDF

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Publication number
US3659450A
US3659450A US878034A US3659450DA US3659450A US 3659450 A US3659450 A US 3659450A US 878034 A US878034 A US 878034A US 3659450D A US3659450D A US 3659450DA US 3659450 A US3659450 A US 3659450A
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US
United States
Prior art keywords
pressure
bridge member
screw means
rolling mill
pressure screw
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
US878034A
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English (en)
Inventor
Hans Siegfried Metzger
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.)
Moeller and Neuman GmbH
Original Assignee
Moeller and Neuman 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
Priority claimed from DE19681809975 external-priority patent/DE1809975C/de
Application filed by Moeller and Neuman GmbH filed Critical Moeller and Neuman GmbH
Application granted granted Critical
Publication of US3659450A publication Critical patent/US3659450A/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
    • B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends

Definitions

  • Admittedly fixing the hydraulic power units for crown control of the adjustable upper backing roll to a bridge member is advantageous because the transverse member located below the screwdown pressure screws follows all screwdown movements of the upper set of rolls, so that there is no need for stroke movement within the hydraulic power units when the rolling gap is changed. The hydraulic pressure for counter bending the upper support or back up roll can thus be maintained during screwdown movement.
  • the invention aims at retaining this advantage for a rolling mill or a calender with pressure screw adjustment, however, without the disadvantage of a change of the elongation length of the rolling mill frames.
  • This object is attained in that the upper bridge member rests on the outer end faces of the pressure screws and is secured in its position relatively to the latter. Thereby the upper bridge member attains a location outside the frame windows and can be dimensioned for any desirable strength, in spite of the fact that it follows the screwdown movement of the pressure screws because it is supported on the upper ends of the latter.
  • the means for securing the position of the bridge member which are necessary because the upper bridge member is disposed above the outer end faces of the pressure screws, consist preferably of a centering device between the outer ends of the pressure screws and pressure members of the bridge member resting thereon.
  • each pressure member is in two parts and consist of an upper hemispherical member which is attached to the bridge member and a lower cup shaped member.
  • the upper bridge member is supported on each pressure screws by a roller thrust bearing.
  • the drive for rotating the pressure screws may be of any desirable kind. According to a further development of the invention, however, the endfaces of the pressure screws supporting the bridge member are of a ring-shaped construction and the pressure screws are driven through splined shafts by drives which are carried by the bridge member.
  • FIG. 1 illustrates a side view of the rolling mill in the direction of rolling, partly in section, and
  • FIG. 2 is an enlarged illustration of the support of the upper bridge member on one of the two screwdown pressure screws.
  • a rolling mill comprises two rolling mill frames 1 and 2 and has a pair of outer back-up rolls 3,4 as well a pair of working rolls 5, 6.
  • the upper back-up roll 3 is mounted in chocks 7 and 8 and has extended roll necks 3a, 3b on the ends of which further bearings 9, 10 are mounted.
  • These bearings 9, 10 are engaged by tie rod pairs l1, 12 which are pivotally connected through upper bearing eyes 110, 12a to fork members l5, 16 by means of round pins l3, 14.
  • These fork members are the ends of pistons l7, 18 which together with cylinders 19, 20 constitute hydraulic power units for crown control of the upper back-up roll 3.
  • These cylinders are mounted at 21, 22 for rocking movement in a bending resistant bridge member 24.
  • This bridge member 24 rests on the upper ends faces of two screwdown pressure screws 26, 27 pressure nuts 28, 29 of which are supported in upper transverse frame members In and 2a.
  • the support is effected by a ring-shaped divided pressure member having a hemispherical part 30 and a corresponding cupshaped lower part 31 and includes a roller thrust bearing 32 on a ring-shaped outer end face 27a of the one pressure screw 27.
  • the pressure bearing 32 is centered within a collar or flange 27b of the pressure screw 27.
  • the lower cupshaped part 31 of the pressure member is provided with an inner centering ring 31a by means of which it is centered within the thrust bearing 32. In this manner the bridge member 24 with the part 30 of the pressure members connected thereto is secured in its position relative to the pressure spindles 26, 27.
  • splined shafts 34, 35 serve for rotating the pressure screws 26, 27 outer splines 34a, 35a of the shafts engaging in corresponding internal splines of the pressure screws 26, 27. Because of this splined shaft drive of the pressure screws the outer ends faces of the pressure screws receiving the bridge member 24 are ring-shaped.
  • the splined shafts 34, 35 extend into drives 36, 37 which are carried by the bridge member 24, as are also screwdown motors 38, 39.
  • hydraulic pressure capsules consisting of cylinders 40,41 and pistons 42, 43 are disposed between the chocks 7, 8 of the upper backing roll 3 and the screwdown pressure screws 26, 27 and serve for controlling the rolling gap.
  • a rolling mill for rolling flat material comprising:
  • At least one of said upper rolls being provided with a neck extension
  • pressure screw means mounted in said frames for effecting downward movement of said upper rolls, said pressure screw means having upper supporting surfaces;
  • a rolling mill as in claim 1 including pressure members positioned below said bridge member, said means for securing said bridge member in position relative to said pressure screw means comprising a centering device means positioned between said upper supporting surfaces of said pressure screw means and said pressure members.
  • said pressure members each comprising an upper hemispherical part secured to said bridge member and a lower cup-shaped part adjacent said centering device means, said upper and lower parts moving relative to each other when said bridge is bent in such manner that said frames do not absorb laterally directed forces,
  • a rolling mill as in claim 2 including a thrust bearing positioned between said pressure screw means and said pressure members.
  • a rolling mill as in claim 1 said upper supporting surfaces of said pressure screw means being ring-shaped in configuration and said pressure screw means being driven by splined shafts having drives carried by said bridge member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Crushing And Grinding (AREA)
  • Paper (AREA)
US878034A 1968-11-20 1969-11-19 Rolling mill or calendar with crown control of the rolls for rolling flat material Expired - Lifetime US3659450A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681809975 DE1809975C (de) 1968-11-20 Walzgerüst oder Kalander zum Auswalzen von Flachmatenal nut Helligkeitssteuerung der Walzen

Publications (1)

Publication Number Publication Date
US3659450A true US3659450A (en) 1972-05-02

Family

ID=5713865

Family Applications (1)

Application Number Title Priority Date Filing Date
US878034A Expired - Lifetime US3659450A (en) 1968-11-20 1969-11-19 Rolling mill or calendar with crown control of the rolls for rolling flat material

Country Status (4)

Country Link
US (1) US3659450A (fr)
JP (1) JPS4819777B1 (fr)
FR (1) FR2023698A1 (fr)
GB (1) GB1265509A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4252180A (en) * 1978-02-15 1981-02-24 Demag Aktiengesellschaft Pressure relief apparatus for the supporting beam for metal strand casting plants, particularly curved steel strand casting plants
US4817407A (en) * 1986-07-02 1989-04-04 Alich Guenter Rolling stand
US5291826A (en) * 1991-03-28 1994-03-08 J. M. Voith Gmbh Tension bars for roll press for paper making machine
WO1997027011A1 (fr) * 1996-01-23 1997-07-31 Tippins Incorporated Laminoir
US20100018275A1 (en) * 2002-09-20 2010-01-28 Wolfgang Denker Low-friction bending system in a rolling stand comprising several rolls
CN105382032A (zh) * 2015-12-07 2016-03-09 天津市新宇彩板有限公司 用于轧辊轴承座的弯辊缸活塞杆顶头
US20230076364A1 (en) * 2020-01-29 2023-03-09 Sms Group Gmbh Rolling device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5064409U (fr) * 1973-10-16 1975-06-11

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373588A (en) * 1965-08-17 1968-03-19 United Eng Foundry Co Crown control for rolling mill

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373588A (en) * 1965-08-17 1968-03-19 United Eng Foundry Co Crown control for rolling mill

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4252180A (en) * 1978-02-15 1981-02-24 Demag Aktiengesellschaft Pressure relief apparatus for the supporting beam for metal strand casting plants, particularly curved steel strand casting plants
US4817407A (en) * 1986-07-02 1989-04-04 Alich Guenter Rolling stand
US5291826A (en) * 1991-03-28 1994-03-08 J. M. Voith Gmbh Tension bars for roll press for paper making machine
WO1997027011A1 (fr) * 1996-01-23 1997-07-31 Tippins Incorporated Laminoir
US5666845A (en) * 1996-01-23 1997-09-16 Tippins Incorporated Rolling mill
US20100018275A1 (en) * 2002-09-20 2010-01-28 Wolfgang Denker Low-friction bending system in a rolling stand comprising several rolls
CN105382032A (zh) * 2015-12-07 2016-03-09 天津市新宇彩板有限公司 用于轧辊轴承座的弯辊缸活塞杆顶头
US20230076364A1 (en) * 2020-01-29 2023-03-09 Sms Group Gmbh Rolling device
US11745234B2 (en) * 2020-01-29 2023-09-05 Sms Group Gmbh Rolling device

Also Published As

Publication number Publication date
GB1265509A (fr) 1972-03-01
FR2023698A1 (fr) 1970-08-21
JPS4819777B1 (fr) 1973-06-15
DE1809975A1 (de) 1970-07-02

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