DE1602186A1 - Device for achieving tight strip thickness tolerances in the rolling mill - Google Patents

Description

PATCNTI N GEN IEU RC FW HEMME Rl CH - GE RD 10 LL ER ■ D. GROSSE £ .1

+ DQ SS-ELDQRF 1, BERLINER ALLEE 34-36. . ", -.".-;. . ,, ., -.,

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United ilnr; ineering · and j? Qun & ry Comp .. ,, Pittsburgh., B

■ Device "sur '& vzj, eä, xmg ENGINEX
the ^

te j & rfindiiii-g. concerns an improvement in the Wai

an improved llalziverlz _: unci ej: ii ssur generation-tron Tiajbzgtii: mjCt very tightji iMGJfe, p eix, as öeispieiLaweise band-., GEoaJ) ieeii> - ^ ma similar> -

liqiies slat © rial. - '': - -;

geiteonzeisissiiiet is iincesr den .aehwiejfigeix ^ jeräälfenisseja in

The link provides a method and a device by means of which the roll gap of a salt mill can be kept constant v / iJSd, iVQd.uECh, an essentially stable diameter of the rolled stock -forces on, a first group of associated jfa; lzweriiSfceitLen including the first and second reduction to, unwanted changes in ϊ / alzspalt due to the shift of the ',' a-lzen leads' and in which. has a variable effective length, whereby .the algebraic sum d, he named Vor— Sgannkra.fit, dÄe in the opposite direction to the i wi-rivt, g-irqßer is.t., than .der .iTa'lzd ^ pressure and in which. _v die ^ V liraft, so changed .wi ^ rd that, the effective length of the second ■ group of rolling mill parts is changed so that the change in length of the first group is compensated by the

si no

16Ρ2180 ^ ise ¹ *

two ce u'alse relative to eier named first ifals'e so bev / e <; c it is ensured that the nip is kept essentially constant will. '

In the case of the above-mentioned requirement, ftie ¥ or spanner a the following iorirfel controlled ;;

i = CT - + i) '.P ₁ , ..

where F represents the vVQrsgajxnkraJat, Y the iP the lioduAi or "des iillastiEitätskoefxriziencen of the first and second group, the iiaJLzvreirlesteijLe and,? ciöu -

A weaker course of interest lies in the index Scha -'- Jun; -; one from the said pretensioning device separate device ::;, by which the, at the same time minted / aizsiiailt set v / ird.

v / urther object of the Sriinching lies in the ueiierunc is a Tfailzsgajlts to -a iialzwerK .or a älijxiichen Yorrichtung in which .a pair .zusaimeOTriricender, ruecaiHibeairßeitender j / a; izen '\ rorhanden.. is,? / obei this .i ^r a, lzsi5aitsfce.uer,: ang, · uijix contains at least a first group of YTalzwgriisteiJbeji, which under the SinxiuS cliieä, Iicher lia «lzcirücite a variable Eöekti ^ läiige: aui £ 5? ironxx ΛίοϊϊϊΑοίν & ΗΡίί & n ¥ EKzejigpng, one of errSten jSignailS :, ^ as tfix the mqu., The named '.iaipen "he, begat Kraifit Ise ^ iizeiciiiiend is ,, ieine miea, Mß iGroipge Λτρη,

JjLiß a siöii ^ a ^ ^ airabalKle .lifieist ^ O ^ ng ^ -. au

kra, £ t in ^ iner iG ^ lockenoKitoupg ;, which is bigger ,, .ais the l and in eiKbgpgengeseiziea * 3 &% cht, ujig , zum JTailzÄrpßic Mmkt oiöö a wattle des ^ al2 ^^ 3jfes ^ esrfjaihmeö. fearxa, eiine ^ © liriehöuög zeugiing eiLnes .Spgnais., iöas ^ ennjzeicteepd is sEiir iddLe tatopaütät der Späuii Oe ^ r geiianptea erscfcen; and .srsmäifeep from uaizwerksiteits.p ,,. , a ^ SGsrrichtuag zpm receipt of the

: and: Z5? eifce & SLgnB ^ s and _; zpr lErjseugeig ^ a ls ;, the il ^ pm ^ a ^ ciifflBiid? iis for the ^ e ^ äpifeaiung im

-; ^bath

rm. se

spa lc due to the changes in the i £ ffe.rLtivlengths of the named two groups of "TaiawerAstoileii, for their part do Jvoniiseiclineii before resilience, which is necessary for change der Sffekuivlünge of the zveite'ii group of: falzv / erKS-c el lon, ura the change in the jJfföKtivlength of the first group ^ on './alzwerii-steilen zu i: oii: uenoieren, whereby the -./alzs-oälc des '..' alz'eri; s essentially koiEUanc held Avird, τ / obei the said third signal for the additional control of the mentioned pre-

g used v / ird. .

In addition to the above-mentioned cn Liel of the connection, in the second group of Tialzwerk parts there are air transmission si; aii '; s which are linked to an "alzen unit" at the third of the Yalzv / erks Sceheii, on which the ^ ucKyorricli- 'tan; r anceordne c io i , whereby the said rods are not connected to the vial line inline on the opposite side of the rolling mill, but rrit of the "mentioned stiffeners that Lcite in "connection", and. dei · Voi'Spannki'af t liiderscand e η t go /; ens et sen.

Another task of the invention lies in dex's creation a well elastic device in said second Group of heal, characterized by the said second group is due to a low i-.io.dul or elasticity coefficient.

Another task of the invention lies in the creation of an improved rolling mill, in which the original roll gap is set by a very narrow, disruptive adjustment arrangement, which is suitable for operation in a four-high rolling mill is einniniint the form of four parallel angeox'dneten rotatable Ansteilschrauben, of which a pair'JWeils-be in one of the two Stäriderpfosteri * - ^1% festig is't, which screws both RCIT Kraf tuber he agungss'tangen> the "'are disposed between the Stänäei'n and a ¹ of the ^3fcü: tzwaTzeneinbaustücke of """ialzwerfes are connected,

Q 0 98 U / 11 33 ,. _: . ". _{;; · BAD}

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21 j 10

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in such a way that their movement can be brought about, whereby the initial gap between the working cylinders is established.

In recent years ever increasing and coordinated efforts have been watched to increase the tolerance of the rolling stock produced by a rolling mill. UG patent no. 2 726 5dl, ο 1, j7 ύ-ί.6 and α 2, Oo 251 represent more recent patents that deal with this goal. These and other known devices for improving thickness accuracy have some serious disadvantages and limitations: c ". Indeed, many of them are extremely costly, both to manufacture and to maintain. Some are extremely difficult to use as a result of the A further disadvantage of some previously known systems is that there is a significant delay between the time when the need for thickness correction is determined and the time when it is determined which the necessary correction is made by re-adjusting the vial and / or by: adjusting the belt tension.

.. ■■ ■ ■ -. . "- BAD. 0 0 9SU / 1 133

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These tasks, as well as other novel Iuerini ales and advantages , are derived from the following .. description in Yei? bln (uung with The enclosed drawings are better understood ...

Ji?;. 1 XBt a Tel Iscbni et representation; · a training requirement of the invention ·,.

/in;. 2 is a Seimi c color representation in the üibeiie ΙΙ-ΓΓ der j? Igv I. ■■■ '. "■

1 ' ¹ X ₁ .;. ö is a variant of in *? ig. 1 and t shown sä

n "

ks, where the iiexnvenaunä 'one goes to olastic iiXeraeiics iu the group <uer "Yfaiar / erlisteile is illustrated, which the Yorspannvorrichtui> g · zugeordxiet are,

-i aeigt an elelztrischea Jicigraian a uteuerun {j ^ iir the iJurchxiihruiito der ^ riimiuni:; ,, in d-ör in the previous figures, iliustriarten .form ».

3 is a partial view in section still further training: 'corm of the invention.

ΙΪ3 \? Is first referred to J? Ig. 1 and 2, which illustrate the preferred arrangement of the invention, show a folder consisting of a pair of upright stands, marked by Döuen mix: one; with; the Mummer ZQt represented j 3t , whereby of course the stands with their Koniponeiiten Xm structure are identical. The stator has lö one window 11 in which an upper © ^ ⁿ ^ lower backup roll is 12 lu aufgenoinmen and each respectively Hinoaustüelce 1-1, have 15, wherein possess the Eiiibaustticfce gegenliberliegende openings 16, in which d; ie chocks 1 ? and 13 the working wholesalers % b resp.

20 aufgenoflimen; wercteii. Oils back-up roll & no building sites 14 and 15 A »earth; ea 'in ttbXieherWiaise by Walisfen balancing cylinder

21 auseinam ^ eF bridged _t as awteht the Arbe ^ its \ KaJtzeÄ diwrehr

22. In the inner support roller there is one a ^ ^ lb * ttz ^ iin ^ ejfedni # it 2E zitgeöFättetj the

^; % 4Vit 33. - BATH

21 110

6th - G 2 -

air lower part of the rolling mill is arranged and which has a piston 24, der.die lower surface of the lower backup roll chock 15 detected via a ball connection, üie Piston-cylinder unit is in connection with only one; Fluid- keltsiiraftaggregat that has a variable iJrucic that is greater than the Yfaizdruck is, can exert.

The upper support v / alzeneinbaustück 14 of the candle 10 is from ütäiiderpxQSten by a breaking block 2ö and a load line 26. Separated. Any commercially available Unit used to measure the "jiTaizdrucks des Yialzwerk is suitable.

As I said above, it is an 'important one. Feature of the invention, a novel and simplified Ansceilverbindnjing for the initial Kins share the gap of the work rolls Ij and 20 to create. In this regard, it can be seen from Figs. 1 and 2 that. das. ooere ricützwalzeneinbaustüci; 14 is provided with parallel openings 27, the continuation of which runs through the upper part of the rolling mill and is inserted through the rods Oi, the lower iinde threaded parts 02 of which are held in nuts Öo , which are non-rotatably fastened in the stand 10 The lower end of the rods S1 is connected to elongated pressure rods 34 _r which lie in the fitting openings 2? And which run as far as the lower fitting 1-i, if they are in force-fitting contact The upper end of the rods is connected to a drive to a normal motor 05, whereby the motor drives via a set of spindles «S®, which are assigned to the Sehnecskenrädeinheit ΐ> Ί trnä SH ^ w # le! ie for the transmission of the Power of the motor on the rods 31 It should be noted that a similar motor-wheel arrangement is available for the other stator and that the gear units are connected to one another in order to achieve a synchronization operation Employment facility for. to ensure both stands "

· -: - ■ - '--BAbORIGfNAL ^iu ''

. '■■■ - G Ξ -

. As mentioned above and explained in more detail below, it is the primary aim of the -firlinding) to create a new type of control system, through which a constant thickness is achieved in that the gap between the work rolls in the is kept essentially constant. The invention therefore provides a WaIzwerkskonstruktxon and a controller before which the elastic iinderungen in the characteristics of the rolling mill parts when changing the 7falzdruCi _V compensate it, In view of the '' -... fact that the liölbenzylindereinheit is arranged on the inside of the stator 1.0 23 In order to directly record the seaming pressure of the rolling mill, any elastic change in the stander as a result of a change in the rolling pressure is automatically compensated for by moving the cylinder piston and therefore such an elastic change need not be taken into account when determining the extent of the compensation which i ^- It is necessary to keep the roll gap constant.

The invention derives from the discovery that the The roller gap of the rolling mill -automatically be kept constant can, if different parts of the Yfalzwerk are arranged in this way are that they work in interrelated but different groups, one group being the salt pressure subject to an elastic change in its effective length leads and.the other group a pre-salary print that acts in the opposite direction to the Waljzdruek and the an order of magnitude sufficient to the effective length of the second group of rolling mill parts in an order of magnitude to change that is sufficient to change the length of the balance the first group of rolling mill parts. Ss is easy and read more high from the comments below recognize that a definite advantage can be gained if u the rolling mill is constructed in such a way that the elastic characteristics of the second group of rolling mill parts are kept that not only has sufficient power to correct the elastic change of the first group of rolling mill parts

- -. ■. - - -. ",. '■■. ■. ■■■ .:. ■ ■■ - G 4 -

is available, but this value is also sufficiently low possesses so that the adjusting mechanism and the complete pretensioning cylinder can be kept relatively small in size.

Although this is not necessary in all forms of the invention is considered, it is accordingly as shown in FIG advantageous, good elastic elements in the rolling mill provide, which ensure relatively high elasticity characteristics of the parts of the rolling mill, which the pretensioning piston cylinder unit 23 are assigned. Though different forms are used can be, there is a very simple and trouble-free arrangement of springs, which are in the group of rolling mechanism parts are arranged to which the preload pressure is applied In the form shown, there is an opening 39 in the lower backup roll chock 15, in which a spring 40 lies, the spring having a plunger 41 with an enlarged head 42 including a spherical recess in which the end of the associated push rod 34 is received * You can see that the arrangement is of very simple construction and the Module of the backup roll chock 15 of the rods 34 of the Rods 31 and nuts 33 in accordance with the goal of the invention can hold at a predetermined low value.

To better understand the way an im substantially constant roll gap is achieved, reference is now made to the formula shown on page 3 of which derives the changing magnitude of the preload pressure is that is necessary to achieve an essentially constant roll gap condition. This formula is given as follows:

F = (Y + 1) P- (Equation No. 1), in which the derivative is like it follows that j

^ "'* 00 98 1 A / 1133 -.:■.., * ·. Ν - ^, .- i _ G 5 -

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4Χ XXU

- / Ή _Ο ^ ν « _Α January 30, 1967

Assuming P denotes the rolling pressure which is opposed by the pretensioning force developed by the piston-cylinder unit 23 and which is denoted by F , Uenn i ^{1 is} always kept greater than P, then the excess pressure (P - P) will be diverted through the lower support / aizeneinbaustück 15, the rods 34, the screws 32 and the nuts 33 back into the stand 10. DeiKziixoIge the deflection of the rolling mill can be divided into two separate amounts, ie (a) the load P, which is transmitted by the era rollers IS bis 20, Btützwalzen 12 and 13 and the chock of the upper support roller, a part of the lower ötützwalzeneinbaustückes as well as by the upper part of Gtan- ä DERS and (b) the load F - P, the 3tützv through the lower / älzeiieinbaustück 15 Cbangen 34 , the screws 32 and! .Inctern S3 is transferred, the following can be done with regard to its eläsciachen v'nderun · "; infoljre of the different ./altpressures as from zv / ei iioduli bescehenö are considered which correspond to the two groups of the oüen marked Vfalzi / erks'ceiie and which can be represented as xolgc:

Ii, = module, which the 'load P over cragenen parts and jvlp = Hodul, which the load (i ¹ - P) transferred parts.

■ ... M ₀ ■ .. ■ .-; ■ / ■ "■■■" .: ■ -.-;

"Jenn ipan now sets Y equals ^ y- and ο equals the stretch

or elastic change of the Walzwei'ks as it is with a If a change in the roll gap occurs, the following equation can be formulated v / earth:

^{J =} H ~ " (Equation No. 2) '

H ν -.

This formula can be converted into:, - »

ίΡ jF P

w- + Tj- (Equation No. 3)

C C

009814/1133

* - ■■■ - ■; -.; ■ ... , ■ - ■■. ■ - ■; - "-. ■ -. ■ BÄD -

January 30, 1967

IKIlViUK

-56-

A reduction in the rolling conditions with; Regarding the elongation des WalzAverks can be expressed as follows ^

jß f 4r (Equation No. 4)

M _c ivl _c M _c

i) a it for the achievement of a constant V / alzspaltes goal if 8 = 0 close, this condition can be established; v / earth, indeiv- equation # 4 equals zero as follows is set:

- + ψ- (Equation No. 5)

¹¹ C ¹ C ¹¹ C

P In solving F, Equation No. 5 can be as follows be mulated:

ΔS = (Y + 1) ΔΡ (Equation No. 6)

Which can also be expressed as follows:

x? _ j? «= (γ + ι) ρ _ p» (equation no. 7)

From this it follows that with an initial load P 'equal to zero, F ^{1 is} also zero and the corresponding equation No. 1 is derived as follows:

. F = (Y + 1) P

From Equation No. 1 it can be seen that if the moduli (M _T , and Mp) of the two groups of parts that make up Y are equal to each other, then Y = I and x ^? = 2P. From this it follows that when M _{n is} proportioned to M- = 0.25 E ₁ .

F = 1.25 P. This shows that it is desirable to keep the value!.! "So small that the size of the pitch 32 to 3c and the size of the piston-cylinder unit 23 are reduced. In order to achieve this, it is - as stated above - the aim of the invention to incorporate an elastic device into the _{elements forming the M c} group of the iialzwerksteile. With this construction, springs can be provided as shown in FIG. 3. By using the springs, the value Mq is kept low enough to obtain the required elasticity characteristic for the ability to balance forces. · BAD G ^ fSiNAL

0098U / T133 - G 7 - Λ

21 IIP

January 30, 1967 rm.se

V - G ₇ - ·

With reference to Fig. 4, which illustrates a controller for carrying out the invention, it should first be mentioned that it is the task of the controller to produce a signal that is indicative of the required change in the preload pressure according to the formula: F - ( Y + 1) P "Correspondingly, in FIG. 4 there is a potentiometer 46 which is set by hand to generate a signal which is characteristic of the quantity M" of the equation Hr. 2,. · Which is sent to a suspension amplifier 47, the summing amplifier 47 also receiving signals from the potentiometers 4S and 49 which are indicative of certain variable elastic characteristics of the rollers and the j | Strip, such as in the first case of the change in the size of the Tialz diameter and in the second case of the strip width, factors that influence the elongation of the rolling mill * The amplifier 47 generates a modified signal ^ that the corrected value for the quantity M _n and which is received by a division amplifier 51. This amplifier 53. also receives - from a manually adjustable potentiometer 52 a signal that is identified by ^^^ for

the set Ma of the equation Ur, 2 ^.; ---. -

As shown in Fig. 4, the division produces 'stronger'. 51, a signal that is indicative of Y, which - as be ■ already mentioned- ^ M ^ corresponds and sends the signal to a "

Division amplifier, 53 * The division amplifier 53 also receives a signal from a manually operated potentiome-.54, .. where the _; Signal is indicative of a value V.

4 © itt amplifier, 53, which is from a length ψ -: -

Icgnn ^ g4 ^^ ⁿ ^ i is given to an amplifier 55. This amplifier "receives from a secondary amplifier 56 a" quantity _. "·, _Ν where da, r is pointed out _? that the amplifier 56 vo | i _v -_- t | erö potent, ioiH ^ ter ^ 4 receives a signal which characterizes the set V. The amplifier 55 adds the values (- + .—)

21 110

-Go-

and sends a signal to a multiplication amplifier 57, which also from the potentiometer 54 a signal of the value

V eupf-äng. The amplifier 57 then generates from the sin

Yl output signals characterizing V (ψ + -) a signal which corresponds to the value Y + 1. It should be noted that there are other ways to get the 77ert Y + 1 and feed the signal into the system. Thus, the amplifiers 55 through 57 are used to generate the quantities of Equation No. 1:

Y + 1, this signal being sent from amplifier 57 to summing amplifier 55. This amplifier receives also a second signal that characterizes the rolling pressure P

P is drawing. As can be seen from the lower part of FIG. 4, the load cell 23 sends a signal to a secondary amplifier -5d and also sends a signal to an amplifier 62 which receives a second signal from a manually operated potentiometer 63. The amplifier 62 sends its signal to a relay 64 which has a normally open and a normally closed contact 64a and 64b, respectively. The potentiometer QG generates a signal indicative of V ₁ , so that the signal V represents the pressure P in the event that the value P is zero or below a predetermined pressure. Relay 64 sends either the P or V ^ signal to amplifier 59, depending on the output of the load cell. Demented

Speaking k, the amplifier 5ö generates a signal, ie P or V ₁ and sends its signal to the amplifier 5S. The amplifier 50 generates a signal, normally indicating the value P (Y + 1), which is sent to a solenoid 57 which actuates a valve 68 which controls the pressure in the piston cylinder unit 23 located in the lower part of the stator 10 .

It should be understood that the various amplifiers illustrated in FIG. 4 are typical known constructions acts, as exemplified in a publication by Korn and Korn entitled "Electrical Analogy Conipiuter "published in 1953 by McGraw Hill. 0098 U / 1133

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21 110 January 30, 1967

η :. ■■■■ ;. ■■ .--, β _Β -

During operation, the 17th values of the various manual potentiometers such as 46, 4u, -Ϊ9, 52, 54, 63 and 66 are preselected and the load cell 26 is generated, a signal that dew. actual roll pressure ratio is equal, so that the pressure of the cylinder 23, which is determined by the quantity i? the equation Mr. 1, depending on the change in the rolling pressure, the amount is changed by the amount required to compensate for a change in the effective length of the rolling mill parts marked by the amount Y.

Ks is said to be the last training exor of the invention, which is described in Ji ¹ Ig. The arrangement shown differs from that in? ig. 1 and 2 insofar as, instead of the parallel miter hoods, there is a single adjusting screw for each stand. Correspondingly, in the stand 70 there are openings 72 in the upper backup roll chocks 73, in which power transmission rods 74 are received, the rods extending between the lower support roll chock 75 and the upper part of the housing 70, for which purpose lugs 76 are provided on the stand, which from the upper ends of the rods can be detected. As in the previous arrangements, the upper back-up roll chock 73 has a load cell 77, the upper end of the load cell being gripped by a screw 73 guided in a nut 79 which is non-rotatable in the housing 70. It should also be pointed out that the arrangement of the adjusting screw 7 £, as it is in.-JTig. 5, which is similar to that used in today's mill constructions. Oil screw can be rotated by a worm gear unit , with the worm receiving its drive from a motor, not shown

Although the above specification has a number of forms of training of the invention are of course still further forms of the invention possible without this being dated Scope of the invention deviated from. It should also be noted that, albeit to illustrate the characteristics of the

0Q9ÖU / 1133 ■; ■■■■ '■ _in

MAl G 10 -

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Invention a Quartov / aizwerlc was chosen the invention also in connection with other types of rolling mills, such as Duov / aizwerlceu. and other related devices where a constantor i / alzspalt is required ' is, like for example GuniiLi and paper calenders.

In accordance with the terms of the patent statutes, the principle and mode of operation of the invention have been explained and illustrated; and described what is for their best training -, s-. •; ori, -; * "ehal: en v / ird. It should, however, be pointed out that within the liahnia of the aniie ^ endeii claims the Invention ψ realize c v / er den -arm in a different way than is specifically illustrated and described here.

BATH ei

- A 1 - ■.

0098Η / 1Ί33

Claims (1)

21 110 January 30, 1967 IS A 1 - United i'ngineering and Foundry Coir.p., Pittsburgh, Pa beut ans pr itch e _; ^; 1, The olteuerun ?? of the work rolls of a rolling mill formed aalzspaltes consisting of a first group rush from assigned ralzwex'kst, who are responsible for the work sv / alzen when editing the Materials developed Yfalzdruckes record Icon— nen, said 'first group of rolling mill parts the work rolls closes and the parts under the influence of the changing 'viaizdruekes a different Effective length have ,, ·, whereby a corresponding change is caused in the "iialzspalt, a second group Rolling mill parts assigned to one another, which one EIeriienjfc include, which is not iii the first group of the rolling mills * is included, the parts mentioned at Applying a force having a different effective length, a device by which movement of a of said rollers is effected and a pretensioning force, both said first and said second Group of vialzwerk parts is applied, · - '■■■ α a d u r c h g e k e η η ζ e i c h η e t, ■ ^r hi.e is the alijeoraic sum of the pretensioning force mentioned in the opposite, offset direction to the rolling pressure and every- - ZOj. c '' is -rroßer, as the rolling pressure at least ■■: the genannce .Eieiiieiit "-dpR said second group of rolling mill, only the parts Dixrorenz between the rolling force and the biasing krax'c unterwoi fen ^ \ 7ird and a device on a InderxiüT Ib ¹ 'l / ä'j. ". F * rucit responds, whereby the force exerted by the said Vprspannvorrίfcung is controlled in such a way that the iii ieivtt tänn; e of the said second group of folding machine parts is exploited, v / o by the Roll gap is changed in such a Hichtxm ·;! "That the change in length 0 8 9 8 14/1 1 3 3 ".t C; ^f - ■; - / - BAD ORIGINAL - ■■. ■ - ■■ "..,.. - A 2 - 1Rn? 1fiß 3Ü.1.1967 λ, I DUZ I OD ria.se ⁷⁶ -Au- " the first group of "walzv / Erksteilen" is balanced. = - BAD QRSGiNAL -A3 - 0 98 U / 11 33 Τ6021 & 6 21 HC oG.1.1 ^ 67 rm.se - A S - 2.! 'Sine utilities in a .. V / alsT / erli according to claim 1, ei a d ti r c h g e Ii e an ζ e i c h η e t ", that the pre-tax liability is controlled according to the customs formula 5 / :? = (_ '+ 1) i-, woi'in . <? dor corresponds Before clamping force Y of the Propornationaiicäu koduli or Elastizitätskoef lizienten the first and second group at the ^T and P Walzwerlcsteilen 7aizdruck. 'J. Sine control for the production of the salt gap between two working rollers, a device for reducing material, " d a d u rc h g e k e η η ζ e i c h η e t, that said work rolls at least a part of one first group, assigned to one another form, aveiche that of the work rollers when reducing of the material -developed i / alzdrucl: auAnehiheii, the said first group of iialzwerk parts, because you rchge κ e η η ζ eich η et iGt that in the case of different pressures this has a variable ilxxeiitive length, which causes an oifeprecliende / 'change in: ./aisspalt, a device for the generation of a first signal is available, which characterizes the iiaizdruck developed between the folds, a second group of associated rolling mill components has a different effective length when a different prestressing force acts, a device for generating a prestressing force which is greater than the rolling pressure and acts in the opposite direction to the rolling pressure _; , so constructed and arranged that at least; one of the rolls of the rolling mill is for Feranderunge Tifalzspaltes is moved, a device, a second evz & ägt, which is not aware of the kropationality of the moduli of the Gewwtmt & n first * md second group of rolling mills; a device receives the said first second signal and generates a third signal, i '^ ftf this is characteristic of the change in "Jalzspalt auf Reason of ^ .nae-i ^ un ^ en- in the ü rf eic ti ν lan ge η of the named share two groups of '«" aizwerks, which, in turn, characterize is for the. Preload pressure required .is / c, around the effective length of the second group of rolling mill ceilons to change and so the changes-in the üiixektiv length of the first group of iaizwer.kscello to fade; through which the YJalzsp-a.it of the rolling mill kept essentially constant becomes and a performance, the said third ji [·; -nal receives and operates the said Vofspännvoirichc-ung. controls .: ... ■ - "- - - · - ■ i. A control for producing a V / aizspaltes between. z \ vei cooperating work rolls according to claim 6, consisting of a fourth signal-generating device for generating a journal, which is characteristic bürden Ilodulcer first group of ViaizvAerks parts, a fifth signal-generating device; x 'for the generation of a signal which is characteristic of the module of the second group of communication lines, thereby geke η η ζ calibrate η e t , that said device for generating said _fc second signal includes a device by v / elcho a: ratio syiselien of the "said fourth and fifth CJ signal is produced and the-mentioned third C signal generated, a-Vorrxchtuiiri, the-mentioned third Cignal diirch a multiplier iron is amplified by at least one unit and a device * ¹ ,, AEAs said first signal to: -WalZdruck features multiplied irit said third signal wodurchdas control signal wixd ^get!. S. A control for the production of a value between two working rollers working together just as follows: dadu re hgeke η η ζ eic ih η e ΐ, that a device provides a substitute signal for the first signal generated _{Λ which} identifies the rolling pressure. 0t98U / 1133 BAD ORIGINAL ^ - 5 ■ - 21 110 30.1.2.067. rju.se -A 5 - 6. Sine control in one, Jalzv / evK according to claim 1, d ad u.-Γ'ch ge Ii e ^ n η - ζ, ο i η et, that a device is separated from one of the above I / a lzen associated Vöi 'tensioning device allows the setting of a initial gap between the balzen. causes. läine OceUei'ung in .a * ^T .TaiZwerge according to claims 1, dadur ch gg I; .e η π draws, that said. is a wide group of? i ^r alaweriiSLeileh lkraxtirj transfer rods, the kit of a first assembly a. Taize aux the side of the 7 / alzwerk, " au.L ^{: on} which the tensioning device is arranged, in contact with KOK'Kert kQimen, the rods mentioned are not in connection with a cylindrical built-in frame unit of a roller on the opposite side of the rolling mill and with the mentioned housing on the other side in connection can, ui; to oppose the preload pressure resistance. A controller in a v / alzwerlc according to claim 1, dad u r c h ge k en η ζ eic "jf.n e t, · that the said rolling mill is a Quartov / alzwex-k with Fen- ^ star for On would take the four ^T Jalzeneinheiten, said second group of rolling mill parts, the lower backup roll * o ^ nbausiücke includes the liraftübertragungsstangen with said lower backup roll chocks in engagement koraneη can, the said rods to the upper support-Y / alzeneinbau3tücken not connected and capable of engaging the upper part of said upright and said device, responsive to a change in rolling pressure, being disposed between the upper back-up roll chocks and the uprights. JtO b ·. Ki nc üi; ouei'xiii ^ "'in cineir. ./Alzv/er .. · * <_ ^ν : ti /.!. Claim I, α ad υ rchr ·; ο,» e η η ζ eich η e ■■ !:, dr.H the c'eiianiite Kv / aite group of TfilKWerku share ei * ic au; elastic yorrichcun.j, whereby the ,., named second group by a niccirifyes i.-otau or iiio- ^ ri "eu Ülasrizitätkcci '.'. 'isienton iiv-' / pale to harvest Gru'one an / vaiEv / erlzoLoilen character is ized. V-. A Jteuoriui ^r ? ' in eiucü v / alzv / orlr "according to claim V, ei a ei urch ge i: e η η ζ eich net, that said second group of YJalzwerk share one μ.! j ei * as tiof.he Yorrichtun ^ einschiieP-ü and ir Jün, TiJ.L stüit lic dcii '* e η an u': '; on iJber üragun ^ nscaniien and eggs dadurc.-i transferred iirait unterv / or: .on is. 11. A control in a folder - · οιΐ: ϋβ / claim 7, one-Gchiießlich four parallel Änstn.i jschrr.uben, the l.ifc one -,!. eiciiGii number of over fcra- ^ unffs.o refuel in connection; i scehon, . . d a d u r c h p; e indicates there,?> the lower part of it. ^ named and -gang the first üxn-: iaustückeinheit erraß and the named screws ir. " the upper part of said dwarf arranged; as long as a device turns the frenamed screws, vrac'by the aforementioned. "jtanp'en verscnoben v / ercon uiid dadui ⁿ ch the .'αΐζ-gap is changed. 12. A uturer; in a. ·} "., 'alzv / er ^ rrer-iä" claim 1, dadu rc h p; eke η η ζ eich η e L, that the lloduli eier first and second group of .. 'ai rv / eri; «-. share a certain relationship aurvetsen and the ^ Gnaunlo two group of "ialzv / erIcs divide üo in the preca'1-.nis', ef? ot; -, t io L , that they have an essential ;; remember Modu J. oesilzt, a .ls the harvest Grupno of .'aj ^ werkstejlon. 0098 U / 1133 ? .ü. Iiine oteuorung in one, - .falav / Erk c'er.i according to claim 12, since du reh p; ek en η ξ eigh η e ε: ~, that one module of the aforementioned two group of V / alzwen-rateiIoλ 0, in the sense of the module of the local group au ',' alzv / er: ioteilen afflicts. I-i. iCine,. '». control in one; »Ialsv / err. jei;, according to claim Ü, including an iTalsenstander, ti adurc ii geke η η κ eich η e c , uajd the S-tander of each egg oeiden G-ruppcii of,. ^T aiaverU3- ή ceilen is excluded and the ;; enann \; c vorspannvorricliso aiip; eoi-diiec lot that the JJeiinun :; ' cia »^ tanders icon will :. · ; . - -. BADOF »GINAL 000814/1133 - Unüe -