DE1454995A1 - Method and device for joining surfaces of thermoplastic plastics - Google Patents

Description

Dr. Werner Kodi

Dr. Richard Glawe

DipL-lng. Klaus Delia

WERNER B A II L S E N Hanover

Method and device for connecting

of surfaces of thermoplastics

according to patent ....... (patent application B 60 363 X / 39a)

The invention relates to a method and a device for joining surfaces of -thermoplastic Plastics with each other or with other substances

9 8 Itmj C

ft U54995

Print "boi which the required temperature for connection means Wirbelβtonbildung o.rigl in a in contact mi i · the plastic foil. is generated, according to Patont * .. ».. · (!» ateutunMuldüng D 60 363 X / 39a.

According to deqi lluuptpatent is one method of joining

j

the surfaces of thermoplastics with each other or with other substances, with your the xur Vurbimlung required temperature by means of vortex trorabil <development in one Metal part is produced, characterized in that in particular xu «connecting, of thermoplastic plastic

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foils or thermoplastic plastic coatings from Paper; Pappo or the like. during the action of the .by dio Turbulent currents generated temperature on the plastic surface a pressure is exerted ·.

According to the main patent, it is already provided that the entrant in front of an endless gang ocjer / Wire tea between the to-be-connected part of a hose or the like. runs in during its manufacture. Included . · solder but the coil inducing the maguetiecho alternating field Arranged in the same way, eo da £) the simultaneous use of Oruek by eusUtglicho Druokorgane orfulgon nut. This ifit is very painful to illir en if niolit, as in provided for all the spices of the main patent, only a «preliminary

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binding should be done via a seam, but when the oborfläouen Connected to one another by sheet material will oll.

The latter is in numerous pttlluii or, conducive when with ispd «-l« indicate a plastic sheet ο tier »ine DnIm! Paper,

4 *

Cardboard or the like. «It should be connected to a metal foil. Similar problems arise when, for example, Behillter-Untertaile still in the Polienverband with a metallic cover film should be closed.

According to the invention, in all of these cases,

ί · · be started, since the continuous, complete or " partial joining of the surfaces of at least two Material webs that are exposed to the action of pressure organs which move at the same speed as move the track or have a corresponding peripheral speed and in which the virbelstrttme inducing magnetic Veohselfeld is generated. .

The Orüok can be exercised on these catfish at the same time Will be used while dio heating the plastic surfaces by the metal foil heated by means of a vortex stream or the like. he follows. Due ancestors can not only refer to this woiae be carried out continuously and thus time-saving, but whether wdrd auoh avoided that bοsondero Uruokorgone

909838/1104

nils «en, vas the facility koepl ±« i «r ·» would. That it is sufficient, on the plastic surface • ine »rather thin · Sohioht is warmed up enough that it · becomes adhesive and the the plastic surface taking place- · * maintenance of the Metal foil or the like. happens, kaim dae procedure eekr - ',' • Be oUnell durably. In practice it doesn’t take place heating immediately after exposure to the magnetic ■ Veohselfeldee, so immediately the necessary pressure can be applied. The same goes for the, of course

ι ·

Pail, the connection is not on. the surface of plastic sheets takes place, but plastic-laminated «paper webs and / or metallic foils are used.

¹ The plastic sleeves used here are like that anyway

thin, 'that a momentary warming on the hoof do': the required temperature is guaranteed. Vegen or because the erwUriatS iCunstatoffschicht when ea concerns dio ErwUrmung of Kunetstoff surfaces, only a very small thickness · has the ge <> wrestle thickness of this Kunatatoffechichten, is also generally no · Gofahr, dal) in mo ~ ' Continuous printing change calibrate each other bu νΛ * <Μη / ΐ »η ^ ρ ^. Verochiebon parts or da0 about the plastic "wipe the <|! J su connected parts is squeezed or the like" natural j> \ lent, it is possible the printing application int regard to warming to vary, should this be considered necessary . '. ■■ '■'.

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ORiGtNAL INSPECTED

Instead of metal foils, especially aluminum rolls, can also metal grid, -notze or the like. used. If necessary, metal powder can also be applied to the plastic surface at the connecting points below.

Since the main patit is mainly concerned with the application of high-frequency Veeheel fields. ISa 1st j # but also already provided, with the Vorwondung of foil strips or the like. Also work with iron with lower frequencies and, if necessary, even with emergency frequency * u, in which case the polishing strip is then guided through the solitaire into electromagnets. It is also in the application D 7ο 251 X / 39 * ² vorgaeahingeii, accordingly auoh>l> ed use of other nets and especially aluminum pollen.

ii. Ee is also in the subject matter of the invention before » part of training the Druok organs as magnotes, their Exciting pulo with oinom medium or low frequency generator connected let, and the mad of the bohnföxtni-

Pre-tie materials in don magnet since ^ i te »u.

The use of medium or low frequency alternating field arrows The very big advantage of having small frequency governors can be used, since then kolns cooling and no shielding is required. Andoro-must-have but the, to vorbindetidon Tello in ollgooiolnen, by deu Schlitz dos Magnoten has been done what when using

909838/1104

of high-frequency Ue cha elf eidern not be the full atu needs. In this latter case the arrangement is the Excitation coil · simpler, since it is then only necessary, on the obajc £ 2J | Qja · of the Druokorganee exercising the Uruok β tv * coils going back and forth nmierdj & ttn, di · see also ife

. · - ·. ·. · ■ '·. "' Add the circumference of the Druokwalsen slightly!«, Ssen., Ui «e>

> ■■ - '■ Coils then need to be connected to the lloohfrequensgene-

rator has been connected.

In general, however, it is the same as in the previous rounds advantageous to develop the Uruokorgcne al Magnute, in denon medium »or low frequency · Veoheelfolder

become T. Auoh on this Veie · let »live web-like · Hate ··. rials completely niteinundor v * r »ohw" eat "when n _f ms g" s "t J} of Srfindung uses a · _v Vorriohtiuig thereby gekeiui · xeiciinet ±» t _t that di · bevegllolien parts of Druokorgan ·.

consist of Elsentteile, which are connected to the Magnot flux of a fixed magnet · »in connection stand or can be brought. On | 11q ·· VeIs · can therefore from '· a stationary magnet can be assumed »during the orok organ as such is designed to be movable and trotsdem also acts as a Magnot. ,

Here, according to the invention, sur complete connection Aweier tracks dio movable toilet oirto smootho

Have surface. In this way, lamination can be carried out, with a sheet of paper, cardboard, cardboard or the like coated _{with inets thon M oplaatlechan plastic.}

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■ it «can be laminated in uncoated aluminum foil came · Of course, the first building can also be coated, but the aluminum foil can also be coated with both Webs ^ coated a. Han kanii aufjdieee Veiee also produce composite foil », where about», an aluminum foil is coated on both sides with the same or different material strips. Instead of a paper web can also one. Plastic film has been used in contact With the aluminum foil heated by the eddy current becomes adherent to its surface. The previously mentioned aluminum foil coated on both sides can also be used Use such plastic foils to be laminated. After all, the parts to be connected do not need to be untouched must be present in fora of long lengths. It can also panels that are guided through the device one after the other are laminated or coated accordingly or be connected to each other when near the the connection effecting plastic surface a metal foil is arranged. Han can do this too, for example Attach individual plates or strips to a metal foil or attach metal plates or strips to any Cream, if either the eretere or the latter with one of the Connection bewix-kenden layer made of thermoplastic Plastic provided 1st. ■

Very often it requires oh, di & J> aluif ttrtnigen

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To connect materials only partially with each other. According to the invention, the surface can then at least one

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Druokorganes be designed according to the connection to be provided and, if necessary, recesses for irregularities Have in the web.

A ^{device corresponding to 1} is particularly suitable for closing filled containers ₄ in a film bandage, which are to be closed, for example, with an aluminum film. The lower üruokorgon then points to the webs »*! ·· ¹ packaging of the corresponding design · bsw. the packaging on corresponding recesses. The upper pressure element can have corresponding projections or it can be smooth. The packaging is then only welded to the cover film on the webs, on which a magnetic slot is formed and the alternating magnetic field induces eddy currents in the metal film. '.. ·

Other possible uses for such a device arise in the production of composite foils, in which the parts of a foil such as Weilpapp should not be connected to the other foil. Basically, bags made of metal foils can also be produced on such a device by welding about two foils by means of three connecting seams, in which case a separation can take place within one of the seams. Em can be welded, on this Woiso also prepared prefolded Zuochnitfce, since one at the Stelion, on donon

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several accessibility lay on top of each other xu come to lie, di · projection · roughly “step over or at the foregoing Places'! Gelling agent can apply eddy currents hardly changed «·

It is particularly advantageous to design the device in such a way that that the moving parts are designed as a pair of orphans whose shafts are each separated by an air gap In Port set of the legs of a U-shaped core of a Electromagnets are arranged. Corresponding electromagnets advantageously turn out to be on both sides of the? Valsenpaaree be arranged. On this · catfish · can The web-shaped materials ο «dgl · in very threading catfish connect together according to the invention · DIo Walsenoberflache can, as previously stated, be smoothly formed sub lamination or sum sealing of packs or the like. with recesses bsw. Be provided with projections * The circumferential speed and thus 'the flow rate' The length of the tracks depends on how much time for the Heating and printing process is required.

Working with orphan couples like this is very convenient, so if necessary, can you? in the dog has to switch several orphan couples one after the other -

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Ea 1st jeilooh asu bttrUokuichtigen that the connection only on a strip of limited width, depending on the valence. If, for whatever reason, there is no great speed of the connecting groynes is to be worked, e · coin, that the.action des Vochselfeltlee and in particular the effect of pressure

Use of a pair of valasen au is brief to ensure a safe To effect pre-binding.

In such a case, a device can be used according to the invention, which is characterized in that the moving parts of the pressure members as "plates" chain links or the like. two interacting endless belts are formed, which can be guided through between the legs of a U-Magnote, endless belts can be guided over guide rollers and carry the webs to be connected with them. Eddy currents are then only induced while the parts are between the legs of the magnet. Uor required oruok can be exercised at the same time or later. The time of the action of the Wecliaol field and the pressure can thus be chosen arbitrarily, so that in any case sufficient time is available for it, even if the paths to be connected run very quickly.

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According to a further feature, the invention can be characterized in that to connect two tracks or the like. is mounted on the Magnotwicklung dom Wcllenabscimitt olnor roller with Η-section in the shape of leading endorsing in the running direction of the strip Bahnon, the arrangement may * may be repeated ⁿ the axial direction several times. Such a device is very simple in its design, but limited to the use of strip-shaped connections in the direction of travel. Such connections are, for example, for the production of hoses from metal foil !! very suitable, from which then later about bags or the like. should be produced. '.

The invention can also be characterized in that the connection of the webs or the like. longitudinally or transversely to the running direction movable parts of the pressure organ are designed as electrotnagncte, which form parts of an endless belt, and that the legs of the parts designed as electromagnets *) are arranged in the same way and also toilo of an endless, revolving belt ^; > The forming iron parts cooperate, whereby the winding of the electric magnets temporarily come into contact with the frequency generator, but can also be permanently tied to it. With the present arrangement,

-H-

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the application of which can be advantageous in many cases, 1st it just has to be the connection in the form of strips produce either in l / ynßs- otter in the transverse direction the tracks run. If necessary, let it be necessary two corresponding devices in a row switch, with «lead first pre-ties in length and then be made in the transverse direction. 'Also in this case the time during which the alternating magnetic field and the pressure act, can be chosen as long as desired, so that high flow rates can be achieved can. ...

of the device On the drawings are the execution shapes

Invention example shown, the method according to animal invention is illustrated by the same.

1 shows schematise *! the bringing together of two tracks to be connected to one another.

Pig. FIG. 2 is an enlarged partial diagram through FIG interconnected 'lanes.

Fig. 3 is a sclinit through an orphan couple with sideways arranged magnets.

■■■ "■■" - "" * 90 9 838/1 1OA "«

'Pig. k is a perspective view of a roller having projections or recesses on its upper surface.

Fig. ^ 5 is an enlarged view *> ineo parts

the Valee according to Fig. 5, ·,.,. \

;. 6 * is a view of a filter belt for processing

■ · ν

processing on the roller according to Pig. k. -

7 shows, in section, a filled expansion band sealed with a cover film, according to Piff. 6,

Pig. 8 is a perspective view of a valve with projections arranged transversely to the running direction.

Pig, 9'i «t eLn section through an orphan old H-fürtuigew cross section. '\,

1. ■ _t

Pig. Io rises the connection * four spells in Porw from stripes arranged in the running direction * · '

Pig. 11 shows the arrangement of orphans kept behind one another according to Pig. 9 and Pig. 8th. /

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Figure 12 is a side view of one of the others Execution molds according to the invention. Pig. 13 is a section along A-B of FIG.

Pig » Ik shows a third embodiment of the invention. ■

15 is a section along CD of FIG. Ik, Fig. 16 shows a section according to B-? the Pig * Ik,

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When laminating two foils or when closing container tapes or the like. are, as shown in Fig. 1 in a simple manner. Webs 1,2 from rollers 3, k removed and, optionally after passing through FUhrungsrollen 5, 6 rolls 7, 8 is supplied comprising a compound of the sheets 1 and 2 to a composite film _r ä »B. a closed packaging tape «. A film laminated in this way is shown in Pig * 2 , in the case of 4, for example the film "1 a · paper or cardboard web ^ iSt ^

or a 'plastic frame and 2 shows a metal foil,

'.. ■ "■ i'V:' ^ ..: ". '.'? "'■'.; . '■.:. . '* «' -«. ^ ·; ^ν 'wobai one of the two flags «ine Oborfiäcli ·' from ~ · * -" ^ "~ ^!

. '■>' ■. '''· * ·' V ^ ■: "■ '; - *;' £ '-. ' 5 Thermoplastic Kunejetoff; sj £ iweii * ett '** & ·% * ■

909 83 8 / XA ö4 origimally inspected

The whales 7, 8 are when two stalks are connected to one another will roll, i.e. when there are laminating rollers serve with a smooth surface. they are

t
stored in frame parts 9, Io. Their journals 11, 12, ^v 13, lh protrude about * from the bearings and are arranged at a small distance from Ki senke men 15, 16, 'which "*' are provided with excitation windings 17, 18. The excitation windings 17, 18 are connected to a medium or low frequency generator 19. In the iron cores 15t * <>, an alternating magnetic field is generated, which is generated in the valves 7, 8, which are made of a magnetically soluble material.

ν continues. The magnetic PIuO runs accordingly

· ■ '· .. _ft that in Pig. J drawn arrows from the iron cores 13, 10 through the air gap which they form with the steering knuckles 11, 12, further through the roller 7 and the air gap

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ZMV roller 8, bowlο from this over the axle knuckles 13, Ik back to the biscuit cores 15? If there is a metallic body in the nip, such as an aluminum alloy film in particular, this induces a whirlwind that immediately causes this film to be raised accordingly. As a result, the plastic surrounding the metal foil is also immediately heated up to the softening point, so that the surfaces that share one another, Ln contact α, adhere. The speed of circulation de *.

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1464995

We orphans *! 00 "Ins" puts "dad the solution just enough * to make it stick. An · IMngtre Erhltsuae bsw, a slower utalauf of the orphans is indolent and undeviating. At the same time, the IJruok necessary for the connection of the creams is effected by the orphans. . If, with a short, steady flow, there is also an 'aaaaj & thawing cooling', it is completely sufficient that the required pressure with your warming comes into effect.

you do not sw ei baitnen on the goose surface with each other v "H) ind" n, but only reach a tallvorbinduntf baw. a SehUlterbaiad vereohlieuon, eo can the orphans '■' 7, 3 rait V »raprtt» een bsw «Auenehnuneen are provided ·. '*

The orphan 2 © shown in Fig. K has kastenfürniff «, recess teng & n 21, which are bounded by protruding webs 22, 2J ₅ that cross over and form a latticework. Xn dio Vsrti © sparks 21 know one a container Zk a OehUlterh & bad 25'®ingeftllirt "Kin such Behiilter" are tied can ± n known manner · produced by 'Tiefalehen and sb @ E £ fall bekastsiter manner. Eisaer filling 26 var. «aöhoii w © rden» 01® webs 27 swisehei » ü®n a solnen DehUltert @ ilen wercian dmm from the webs S2 _f 23 of the orphan under ·» otütat. D ± ® © bor © WuIk «can be trained accordingly« A smooth orphan 7 can also be used here. . . . "

983S / 11O4

Vina dl · VkI · 2o an 8t «ll · d« r Valz «8 in Fie. 3 related · * becomes "· ο let realizable, because" the magnetic flux concentrates is on dl · places where dl «web · 22, 23 · Form a gap with the VaI ae 7 «. Venn al * o Jetst «u- • aMMen With the «BenKlterband 25» in an aluminum foil 28

as when the pair of valaans 7 and 2o is introduced, so-conaented aiaU the magnetic flufl on the webs and as a result the film 28 is only heated in these places while the cooling belt 25 and the film 28 at the other locations stay cold. Oa gleielisuitig only a nuke effect

• if the webs 27 and the film 28 are carried out, au oh A connection is only established here * ■ ■ t

m ■.

Stm warden will therefore receive a Verpaekungaband, 'de' do in a known Veiee the Klnselbehälter Zk ausgestanst ■ • icttniien · .. ·. "-

For the same V «i ·· those previously described echon can also various other employment contracts the «er device can be carried out *. · ',

If you want two lanes only crosswise to the direction of travel connect, eo can use a Valee 29 with Voreprüngon 3o Find. Of course, this projection can be very violent atehen closer to each other and te can with different

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. T 909838/1104 '.

* 454995

Running speed of the 'bel «iei | VaIseit.®tws a tf «11 effekt On one of the two, at the connection asd®» BmUm @ m «s> r« ± elit wejrd «is» 'You can also attach any liisious aur Laufriolituise 8ße «a? J! Nete. For the "P" sll it is, however, e £ sBfeeft "r _t " le "device ®ntepreela®s £ d Fig" $ ssu ^ ®s ^ ®sd. "R" _s - IMbei

the Walssen ndt a »M-ITurini & en ^

who possibly in &% 4aie; r Hicht «??. ^ iBe3sr £ ae! i. repeated can be »On the well © 31 are

32 $ 33 attached (, di »« ait dem

nind. The echeibenfffr & ilgeia parts 3 ^ _B 35 " 36 of this whale * © arbsiters zn collect tn ± t

a wave ^ o. Dsr Ms ^ JietflisS iet a ^ ?; li £ <u ßite «« i »cases

Bmt Uatmt on di @ s3O ¥ @ £ ge the in Fig «

with hlf h2t 43 bezeisfiitetmi L? isj | £ 3§? Jiiit © fe ^^ etolleni die bgispiolawaise asuir Uex * st®llung voa Sel ^ SlEffiliCK suitable »

processed into bags wsrdea «.- M | & © ® 'Ci M-fy-z h3 know examples ^ eieo- iait © iaos ⁵ We ^ g ¹ Ie

st «J, l, i 'will be the nsit of the orphan' JIp v © i? ® @ Ia © s, in the r iiar Fig: => _ 3 derives ₉ Aiaf dcsg ¹ V ^ ffffiöfet

Pig _c . 11 Kings Aetsm. First of all the Lüssgssiälite 4l bi « ^- d« sr device © sitspreehiggsd flgv p «Bd di *, i |> g · Bsife iiew U'aissen 2 ^ and 8 iierg @ * t®llt; tre-rd «».

BATH ORIGINAL

With a bucket-less speaking device one can of course even if you use «let Valve 2 $« J. · under «Valse, close a container tape 25 as shown in FIG.

HeI of the embodiment shown in Fig. 12 4 ° ^ 1-3

let a magnet% 6 with " rather long legs / 'the 9in · fctreeerwieklun" 4? bears with the Frequensgenerator verbunilen 1st · Zvieohen the Soheiikeln run Büsenteile kB to 5o, and 51 to 53 * The juxtaposed parts kB to 5o form with ansohlieilenden in the running direction entsprechenden- Teilen.ein uMlaufendea hand 5 ^ t, the ollen about "55 , 56 nseli is just redirected. The parts 51 t & s form a corresponding lower bond 57 ″ which is deflected over halls 58, 59. The webs connecting 6 ·., 61 · are introduced between the blind $ k e> is 57; They come here into contact with the Eisenteiieh _t s "O. 48 to 5 © and JF \ to 53, and wonder with these parts "wischeu the '' legs of the N & gneten k (i. As soon as the parts kB to 53 '" can enter the magnetic field, a corresponding magnetic whitewash field is produced in them and they induce, in the metal foil of the webs 6o, 6l, the vortex β ti'tine that brings about a heating. Equilateral or immediately adjacent, they are guided by parts KB to 53 in such a way that they exert the required pressure on the ligaments connecting the tsu.

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Of course, these parts can also be used during their entire Laufee was led under pressure

f ■

The parts 51 to 53 can be box-shaped recesses

5, so that they are surlier ·. Provision of packaging bags according to Pig. Eind suitable 7 «In the illustrated embodiment, U-fttrmige Eieenteile are provided 48-5 © that Längenttht" entaprechend kl to '"3 PdCg. Generate Io.

Man. can also, as in Pig. 12, several magnets are shown 46a and 46b Use when a wider magnetic field is to be created. ·· '. - Iv

Instead of generating the magnetic Veobeel field while passing through a magnet, an auoh entepreohend. Fig. YES train the individual parts as electromagnets

and they will take effect through contacts each door a certain period of leave. . In the illustrated embodiment in Fig Ik liogeiiden the successive tracks 62 are initially xwischon two belts 63t 6k performed, the au; " individual magneton 65, 66, 67 " .68 with Krregert? i <cklunger · 69, 7o, 71" 72 aowle ointräfire accordingly en Iieenfreilen 73 to 73ο are formed. Then the webs 62 get between two belts 7 ^ t. 7i>, which are formed accordingly with magnotes 76 to 79, with exciter windings 8o to 83 and from lSisenteiien Qk to 87. The bands 63, 64 and 74, 75 are only shown schoinatically.

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poses and can especially last longer than shown in the drawing visible, to be executed

t '
In this embodiment, you can only either longitudinally

* m γ.λ »► ·» - ■■ ·· ··· *

or prebinding strips arranged transversely just around the edge

been formed. In the present case, the parts 65 to 73o form * transverse seams, corresponding to the transverse seams kk, kü of Fig. Io ψ the parts 76 to 87 Lnuteams, corresponding to ilen lung seams kl to k ^. The lower hardware T) ** · 73 "or β **" to 87, when it only aujC ankoMint a strip-shaped * sealing be carried out smoothly. You can also wio in Flg. Lh to l6 gezoigt, have recesses so that the container straps 25 can be welded to the webs 27 while being closed with a film 28. The parts lying next to one another, for example 78, 78 ', 78 "and 86, 86', 86" (Fig. 1), must Of course, if continuous strips are to be welded, exactly as the corresponding parts in FIGS. 12 and 13 lie closely together with their webs and be designed in such a way that they overlap the windings 82, 82, 82 ". Narrow gap between. don parts do no harm as they throw bridged. But you can also intentionally arrange the bars for toilet-wise pre-binding of lengths with gaps.

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9ü983i / 1 ⁵ C ^

The time during which eddy currents in the metal foil induced, hior can be adjusted precisely, dft it only depends on the time with which the excitation windings 69 bia 72 baw. 80 bi »83 with * the contacts do · Frequen & generators in connection et before »." The Druok can here, if desired, can also be set independently of the heating, for example over curves.

w 22 -

Claims (6)

TW995 Patent claims 1 · Procedure sun pre-binding of surfaces of thermoplastic Plastics with each other or with other substances under pressure, where the tempo required for pre-binding door by means of eddy current formation in a contact with the Plastic located metal folio or the like. is produced according to patent (patent application Il 60 363 X / 39a), thereby characterized that sum continuous, complete or partial joining of the surfaces of at least two material webs are exposed to the action of pressure organs that move t- ± ch with the same speed as the webs or 3: lno have the corresponding peripheral speed and in which the Eddy current? inducing magnetic Veohsel field is generated « 2. The method according to claim 1, characterized in that the pressure elements are designed as magnotes are whose excitation coil with a central or Nioderfreuuonzgenorator is connected, and the parts to be connected to the balmfttrmigen materials in the Magnetsohlita been connected. - 23 -. ·; · •. 909038/1 10 '» U54995 3. Device for performing the method according to Claim 1 and 2, characterized in that that the moving parts of the pressure organs are made of iron consist »which via louvers with the magnetic flux of a locking magneton are in connection or can be brought are" . ·· '·' · ■. k. Device according to Claim 3, characterized in that the movable toilets have a glowing surface in order to completely connect two tracks. . Ü. Device according to claim 3 · characterized g e k e η η a β 1 c h η e t, dal J for partially vreieeu prebinding Neither tracks the surface of at least one ore organ is designed according to the connection to be provided and, if necessary, recesses for irregularities in dor QaIm or ufvoist. 6. Verlohtung according to claim 'J, cla <lurch' S e k ο η r * a e i c h η e t, da |? the moving parts ale Pair of whales are auseebildot, whose waves Jo through a, Separate air gap In continuation of the legs of a U-shaped gen Kerna cjnao electromagnets are arranged. 909 8-3.8 / 1 10A BATH ORIGINAL H5A995 7 * Device according to claim 3 t characterized g e k e η .η ζ e i c h η e t that the electromagnet are arranged on both sides of the roller pair. 8φ device according to claim 3 »thereby characterized in that the moving parts of the pressure organs as plates, chain links or the like. two cooperating endless belts are formed which can be passed between the legs of a U-magnet are. . * 9 » Device for carrying out the method according to claim 1 and 2, characterized in that 3ur connection of two tracks or the like. in the form of strips running in the direction of travel of the ßalmea, the magnetic winding is attached to the shaft section of a roller with an H-cross section, the arrangement possibly being repeated several times in the axial direction. 909838/1 104 1454S95 lo. Device for carrying out the process according to Claim 1 and 2, characterized in that that to connect the tracks o <, like ₀ movable along or transversely to the direction of travel © parts of the pressure organs are designed as electro-magnets, which form parts of an endless belt, and that the legs of the parts designed as electromagnets with parts arranged in the same way and just in case of an endless, revolving belt working together. 26 -. 909838/1 1.04