EP0143166B1 - Walzgerüst mit mittels Stützrollen abstützbarer Arbeitswalzen - Google Patents
Walzgerüst mit mittels Stützrollen abstützbarer Arbeitswalzen Download PDFInfo
- Publication number
- EP0143166B1 EP0143166B1 EP84108263A EP84108263A EP0143166B1 EP 0143166 B1 EP0143166 B1 EP 0143166B1 EP 84108263 A EP84108263 A EP 84108263A EP 84108263 A EP84108263 A EP 84108263A EP 0143166 B1 EP0143166 B1 EP 0143166B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rolls
- roll
- backing
- chocks
- blocks
- 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
Links
- 238000005096 rolling process Methods 0.000 title claims description 12
- 230000000717 retained effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 6
- 238000009987 spinning Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 241001295925 Gegenes Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
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
-
- 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
- B21B13/145—Lateral support devices for rolls acting mainly in a direction parallel to the movement of the product
-
- 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
Definitions
- the invention relates to a roll stand with two work rolls, two intermediate rolls and two support rolls (six-high roll stand), in which at least the axes of the support rolls and those of the intermediate rolls lie essentially one above the other in a common vertical plane, in which furthermore the intermediate rolls between the support rolls and the work rolls are arranged axially displaceable, and in which the chocks of the work rolls and the chocks of the intermediate rolls are held laterally by them form-fitting axially guiding guide pieces, of which the guide pieces provided for the chocks of the work rolls on blocks provided in the stand window and having adjusting means and those for the chocks the intermediate rollers effective guide pieces within the soffit of the stator window are each vertically displaceable and optionally acted upon by pretensioning means, and finally the work rolls additionally against the support w vertical and salt axes with the intermediate roller axes can be adjusted horizontally in the rolling direction and can be supported essentially in this direction by support rollers which can be adjusted against them from support bridges connected to the
- the optimal diameter of the work rolls depends on a number of factors. For example, work rolls with a larger diameter are used for dressing than for the usual reduction, and with decreasing strip thickness and increasing strength of the rolling stock, the diameter of the work rolls is also expediently reduced. With increasing slenderness of the work roll, however, the necessity of its support arises not only in the vertical direction by intermediate or backup rolls, but also in accordance with the type-determining publication “production of cold-rolled strip”, Part 1, Verlag Stahleisen mbH, Düsseldorf, 1970, Pages 309 to 314, also in an essentially horizontal direction, in or against the rolling direction by horizontal adjustment, by hydraulic cushions and / or by intermediate rollers supported by further rollers and / or pressure rollers.
- a certain spread of the work roll diameter is provided for practically all roll stands in order to be able to rework new work rolls with the maximum diameter in accordance with the wear and tear occurring in the company; in general, differences between the original, largest and the smallest permissible diameter of, for example, 50 mm are provided. Such differences can be taken into account within the roll stand without major modifications to the same. In addition, however, there may be a desire to be able to use more differing work rolls with respect to their bale diameters, for example to pre-roll within a stand optionally with work rolls of larger diameter and finish rolls with work rolls of very small diameter.
- the invention is therefore based on the object to provide a roll stand of the type described, which can be converted in terms of the diameter of its effective work rolls into diameter ranges in which the work rolls require lateral support within considerably shorter times, which are in the range of normal work roll change times .
- cassettes are expediently designed such that they can be inserted horizontally into stand recesses and recesses in the support bridges, the cassettes each consisting of two lateral cheeks which connect the parts of the support roller arrangement which extend from stand to stand.
- these cassettes also have the guide plates at the same time, so that the work roll installation is completely released after the cassettes have been removed.
- the support roller arrangement can then be moved into the working position, and even when using thick work rolls for long periods, it is not absolutely necessary, but only advisable, to replace the cassette with one that does not contain a support roller arrangement, and also that The cassette can be exchanged easily, unhindered and quickly.
- the support bridges in the number of hydraulic cylinders corresponding to the support rollers and that of the two bearing arms of the horizontal intermediate roller, the piston rods of which have recesses into which projections of the elements adjusting the support rollers and the intermediate roller can be inserted horizontally . It is hereby achieved that the support roller arrangement can be removed easily and in a few simple steps, while the hydraulic cylinders equipped with hydraulic connections and adjusting these remain within the support bridges.
- the replacement of the work rolls is further simplified if the drive spindles of a comb roll stand provided on the drive side of the stand or corresponding separate drives are connected to the pins of the support rolls or else of the intermediate rolls.
- Such a backup roll or intermediate roll drive which is maintained regardless of the diameter of the work roll used, further reduces changeover times.
- the work rolls can also be driven if necessary.
- the guide elements guiding the chocks of at least the intermediate rollers in the axial direction of the mutually supporting surfaces of the guide pieces and the chocks are formed symmetrically with respect to a horizontal plane, and the axes of the roller journals supported by the chocks are offset from this horizontal plane.
- a chock can be picked up by the guide pieces in a first as well as in a second position rotated by 180 °, the displacement of the axes in lower
- FIG. 1 shows a top view of a stand 1 shown broken off, in the stand window 2 of which the chocks of support rolls 3 and 4 are held displaceably in a central vertical section through a roll stand.
- Recessing recesses 5 of the stator in the height range of the work rolls form extensions of the stator window, in which horizontal adjustment devices 6 are provided, the adjustment stamps of which are connected to a carrier 7 of a block 8.
- adjusting means not shown in the figure, which are expediently designed as hydraulic cylinders, vertically provided guide pieces 9 and 10 are supported on the block, the chocks 11 being horizontally displaceable between their guide surfaces. and 12 of the work rolls 13 and 14 lead small diameter.
- displaceable guide pieces 15 and 16 for example subjected to bending forces, are vertically displaceable, the end faces of which form a horizontal guide guide the chocks 17 and 18 of intermediate rolls 19 and 20.
- Sufficiently rigid support bridges 21 and 22 are provided between the stands, in which the essential parts of the support roller arrangement are provided within a cassette 23.
- hydraulic cylinders 24 and 25 are provided in the support bridges, the pistons 26 of which are arranged on freely projecting piston rods 57, the free ends of which have a recess in the form of an annular groove 39.
- fork rams 27 In the cassette are fork rams 27, the free ends of which are equipped with a continuous undercut horizontal slot 28 so that the protruding claws engage in the groove of the piston rods.
- the fork plungers 27 At its opposite end, as can be seen in detail from FIG. 3, the fork plungers 27 have forks 29, the outer sides of which have grooves or transverse strips which are guided along profile strips 30 each arranged between two forks.
- On the bolt penetrating the fork support rollers 32 On the bolt penetrating the fork support rollers 32 are mounted.
- the inner partition walls of the cassette are equipped with guide plates 31 for the rolling stock which can be pivoted along swivel bars.
- 4 which shows a top view of the support bridge 21, can be seen in the broken part, two hydraulic cylinders 25 are provided on both sides of the row of hydraulic cylinders 24 in the support bridge, the piston rods of which can be connected to fork plungers 40, the forks of which have pivot pins 41 the bearing arms 33 are pivotable, the free ends of which have the bearings of horizontal intermediate rollers 34.
- the bearing arms can be pivoted between guide pieces 9 and 10 and guide plates 11.
- the guide pieces 9 and 10 and the guide plates in this case have bolts 42 and 43, which are surrounded by stones, which are essentially longitudinally displaceable in scenes 46 and 47 of the bearing arm.
- the bearing 45 is held for the journal of the horizontal intermediate roller 34.
- FIG. 3 - are to be replaced by work rolls 35 of larger diameter, as shown in section in FIGS. 2 and 3, the pistons are first of all 26 all hydraulic cylinders 24 and 25 retracted into their extreme left position, the extended position of the cassette 23.
- the forks 29 are taken along and both the support rollers 32 and, via the bearing arms 33, the horizontal intermediate rolls 34 are withdrawn from the supported work roll.
- both the work rolls and the vertical intermediate rolls can be moved out of the stand and replaced by a second set of work rolls 35 of larger diameter with associated backup rolls.
- the work rolls are each held in their chocks in such a way that their operating position also results when the guide pieces 9 and 10 are in the middle position.
- the guide pieces are equipped with grooves 49 and the chocks with guide strips 48.
- the chocks are therefore adapted at least in the areas guided between the guide pieces, and the adaptation to the respective work roll diameter takes place by appropriately removing the axis of the bearings of the work rolls from the central plane penetrating the guide strips 48 of the chocks.
- the intermediate rolls can be provided essentially continuously with the same diameter; only with work rolls of extremely large diameters can it prove advantageous to use them in connection with intermediate rolls of smaller diameters.
- the position of the intermediate rolls changes according to the distance between them, which corresponds to the roll gap, increased by twice the diameter of the work rolls. With the use of larger work rolls, even if intermediate rolls of the same diameter are still used, they must be stored in chocks whose bearing axes are further apart from one another in accordance with the increase in the diameter of the work rolls.
- Pushing the roller set in and out is very simple due to the guide pieces which guide the chocks horizontally, so that no greater difficulties arise here than with a normal work roll and intermediate roll change. Operation can be resumed immediately after the work and intermediate rolls have been replaced, the pistons 26 of the hydraulic cylinders 24 and 25 remaining in their extended position shown on the extreme left, and the horizontal intermediate rolls of the pressure roller arrangement also being clearly lifted from work rolls of larger diameter.
- the pivot angle of both the bearing arms 33 and the guide plates 31 is also determined automatically. This can be achieved by the shape and arrangement of the scenes 46 and 47, by means of which the bearing arms 33 are guided from the inclined working position into the practically horizontal retracted position. By appropriate shaping of the opposite backdrop, the optimal adjustment of the guide plate can also be brought about and when the guide pieces 9, 10 are moved vertically, they are transferred to the bearing arms 33 and the guide plates 31. Another possibility arises from the stronger extension of the support roller arrangement when using work rolls of smaller diameter. Here, too, an adaptation to the work roll diameter can be achieved by appropriately guiding the links 46, 47.
- the intermediate rolls can be kept largely independent of the work roll change; only with work rolls of extremely large diameters it may be advisable to use intermediate rolls of smaller diameters.
- FIGS. 1 and 2 in front of the block 8 shows spray bars 50 shown cut with guide pieces 9 and 10, which may optionally be designed to be pivotable with the movement of the guide pieces, while between the guide pieces the piston rod 51 of a hydraulic cylinder serving to balance the work rolls and acting between the guide pieces can be seen.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Press Drives And Press Lines (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84108263T ATE33950T1 (de) | 1983-10-03 | 1984-07-13 | Walzgeruest mit mittels stuetzrollen abstuetzbarer arbeitswalzen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3335857A DE3335857A1 (de) | 1983-10-03 | 1983-10-03 | Walzgeruest mit mittels stuetzrollen abstuetzbarer arbeitswalzen |
DE3335857 | 1983-10-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0143166A1 EP0143166A1 (de) | 1985-06-05 |
EP0143166B1 true EP0143166B1 (de) | 1988-05-04 |
Family
ID=6210801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84108263A Expired EP0143166B1 (de) | 1983-10-03 | 1984-07-13 | Walzgerüst mit mittels Stützrollen abstützbarer Arbeitswalzen |
Country Status (6)
Country | Link |
---|---|
US (1) | US4563888A (ko) |
EP (1) | EP0143166B1 (ko) |
JP (1) | JPS6076209A (ko) |
KR (1) | KR910005829B1 (ko) |
AT (1) | ATE33950T1 (ko) |
DE (2) | DE3335857A1 (ko) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3503756A1 (de) * | 1984-03-13 | 1985-09-19 | SMS Schloemann-Siemag AG, 4000 Düsseldorf | Sechswalzengeruest |
JPH0620561B2 (ja) * | 1985-04-03 | 1994-03-23 | 株式会社日立製作所 | 圧延機のロ−ルベンデイング装置 |
JPH0719602Y2 (ja) * | 1988-11-04 | 1995-05-10 | 川崎重工業株式会社 | カセツト式圧延機 |
JPH0747122Y2 (ja) * | 1990-03-16 | 1995-11-01 | 川崎重工業株式会社 | 圧延機 |
DE19944612C1 (de) * | 1999-09-17 | 2000-11-23 | Sundwig Gmbh | Walzgerüst |
DE10121078A1 (de) * | 2001-04-25 | 2002-10-31 | Sms Demag Ag | Walzgerüst für bahnförmiges Walzgut |
DE10243677A1 (de) * | 2002-09-20 | 2004-04-01 | Sms Demag Ag | Reibungsarmes Biegesystem in einem Mehrwalzen-Walzgerüst |
US8329079B2 (en) * | 2009-04-20 | 2012-12-11 | Entrochem, Inc. | Method and apparatus for continuous production of partially polymerized compositions and polymers therefrom |
AT523437B1 (de) * | 2020-12-09 | 2021-08-15 | Andritz Metals Gemany Gmbh | Walzgeruest |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2651954A (en) * | 1949-09-27 | 1953-09-15 | Frank P Dahlstrom | Method of and means for rolling strip material |
AT260843B (de) * | 1966-03-30 | 1968-03-25 | Schloemann Ag | Mehrwalzengerüst |
DE1777054C3 (de) * | 1966-06-28 | 1981-01-29 | Schloemann-Siemag Ag, 4000 Duesseldorf | Mehrwalzengerüst |
JPS5038389B2 (ko) * | 1972-05-17 | 1975-12-09 | ||
SU599865A1 (ru) * | 1974-07-12 | 1978-03-30 | Предприятие П/Я А-7697 | Прокатна клеть |
IN150120B (ko) * | 1978-05-19 | 1982-07-24 | Sendzimir Inc T | |
JPS5666307A (en) * | 1979-10-04 | 1981-06-04 | Hitachi Ltd | Rolling mill |
JPS57106412A (en) * | 1980-12-23 | 1982-07-02 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling mill |
DE3107693A1 (de) * | 1981-02-28 | 1982-09-16 | SMS Schloemann-Siemag AG, 4000 Düsseldorf | Walzgeruest |
AT382801B (de) * | 1981-03-16 | 1987-04-10 | Escher Wyss Ag | Walzgeruest mit arbeitswalzen |
AT370347B (de) * | 1981-03-24 | 1983-03-25 | Voest Alpine Ag | Walzgeruest |
JPS57165104A (en) * | 1981-04-02 | 1982-10-12 | Ishikawajima Harima Heavy Ind Co Ltd | Multiple stages rolling mill having shape controlling function |
-
1983
- 1983-10-03 DE DE3335857A patent/DE3335857A1/de not_active Withdrawn
-
1984
- 1984-03-02 JP JP59038896A patent/JPS6076209A/ja active Granted
- 1984-03-31 KR KR1019840001744A patent/KR910005829B1/ko not_active IP Right Cessation
- 1984-07-13 AT AT84108263T patent/ATE33950T1/de not_active IP Right Cessation
- 1984-07-13 DE DE8484108263T patent/DE3470853D1/de not_active Expired
- 1984-07-13 EP EP84108263A patent/EP0143166B1/de not_active Expired
- 1984-10-03 US US06/657,415 patent/US4563888A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4563888A (en) | 1986-01-14 |
KR910005829B1 (ko) | 1991-08-05 |
ATE33950T1 (de) | 1988-05-15 |
JPS6076209A (ja) | 1985-04-30 |
JPH0377008B2 (ko) | 1991-12-09 |
DE3335857A1 (de) | 1985-04-18 |
DE3470853D1 (en) | 1988-06-09 |
KR850004021A (ko) | 1985-07-01 |
EP0143166A1 (de) | 1985-06-05 |
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