DE2012971A1 - Method and device for twisting threads and tape-like products around their longitudinal axis - Google Patents

Description

1.8. March, 1970

ijiiH.-iii.juiiiiiOiiiM »·! ._ y ₀ _ _Q

(yiüncha « 2, himntaP * · / ■■« ~ * -f? -? "

"S ₁ Part. 261989

OLE-BEHDT RASiOTSSBiI. -

Topstykket 7 I.

3460 Birkerpd ^

Denmark

ducks around_your_ longitudinal axis

The invention relates to a method for twisting threads and tape-like products about their longitudinal axis, this being Drilling in a substantially linear zone between two rubbing bodies takes place, the friction surfaces of which are in the transverse ~

direction of threads or products moving while this is in the JJ

Can be continued lengthways.

Drilling processes of this type are used in textile technology and in the context of similar technical fields for various purposes. For example, it corresponds to the known state of the art to carry out such a twisting in connection with the spinning of staple fiber yarn, the itohgarn being subjected to the twisting process in order to increase the coherence of the individual fibers and to approximate the desired circularity of the to achieve Garnquerijchnitts. the drilling can also rüenan for texturing of the yarn and it corresponds to the prior art, such a drill \ g with the intention to make, thereby a strong rotation

or

009842 / 1-794 _BAD

or to produce twisting, which is combined with a heat treatment or some other fixing process in order to achieve that the material shows the tendency "in the twisted state to return. Finally, it also corresponds to the state of the art that such a drilling method for producing Split fibers are used when oriented or stretched film strips are usually split into fibers under relatively strong pressure that are still related to each other in the form of yarn. The orientation required for this purpose can for example be through a pronounced molecular orientation can be produced (- although of course it is known that sufficient cleavage cannot always be achieved in this way), or the orientation can also be achieved by strongly stretching a mixed structure mass produce in the molten state.

A drilling process of the type under consideration here is brought about with the help of two rubber rollers that run in the axial direction to be guided back and forth against each other while they are moving of the thread or yarn simultaneously rotate in the longitudinal direction, or you can use other, similar tools for this purpose serve. However, these known drilling devices provide relatively inconsistent work results, especially in the production of split fibers is disadvantageous because in this case fluctuations in the fiber fineness occur and because the method because of the relatively high rolling pressures that are required here Applying particularly strict standards is conditional. These deficiencies can be remedied to a certain extent by removing the thread very slowly in relation to the duration of the reciprocating movement or that one operating points of this type at which So a twist is made, connected in series in very large numbers. However, this makes the method less suitable for practical use.

One of the objects of the invention is to remedy these shortcomings to eliminate. Another object of the invention is to provide a very enable high working speed.

According to the invention, at least one friction body is used, which consists of a plurality of friction organs,

009842/1794

which attack one after the other on another rubbing body and which during the period of this attack transversely to the feed direction of the Threads or products are moved, these rubbing organs in the time periods in which they do not attack the other rubbing body, be returned to their original position. '

In the method according to the invention, the drilling process thus takes place as an essentially continuous operating sequence with essentially constant twist in one and the same Direction, whereby a uniform twisting action is produced, so that the treatment operation is carried out in a practical manner and can be carried out at a high feed rate.

At least two friction elements are provided here, however

it is preferable to work with a larger number of friction organs, ™

for example, with about eight to fifteen such organs: as this allows higher working speeds without the necessary facilities thereby making their structure much more complicated would.

The one on the opposite side of the threads or Products intended for rubbing bodies can be, for example around a rotating roller with a friction surface or, in a very simple embodiment, around a stationary body with a Act friction surface. However, the other will also tend to rub Body to achieve the greatest possible turning speed have in the drilling process a plurality of Reiborganeη which attack one after the other on the first rubbing body, jj

move each of the engaging friction elements in opposite directions. "'■ _;

In a preferred embodiment of the method consist of one of the two rubbing bodies or both of one Roller with a large number of each individually axially / displaceable Roller segments, each of which extends over part of the roller circumference extends.

The friction surfaces can be sandblasted or finely grooved Lietallflachen or rubber coverings that are applied directly to the friction elements. But the transverse

0 0 9 8 4 2/1794

- 4 - ■

"Movement of the friction elements in the context of an embodiment of the method also transferred to the threads or other products by endless belts. This increases the service life of the friction surfaces. To the. Avoidance of cross slippage between the belts and the friction organs one side of the bands, which touches these organs directly, can be corrugated in the longitudinal direction and the surfaces of the Friction members can be corrugated in a similar manner to engage the corrugated pattern of the belt.

To undertake the splitting and texturing, the Friction surfaces advantageously at different speeds are advanced in the feed direction. In this way it will At the same time as the twisting, a shear treatment is carried out, whereby the surfaces of the threads or other products are carried out at any time are subject to these opposing shear effects, which therefore constantly come into play on different parts of the surface of the threads or products.

The invention also relates to a device for carrying out the method. This device includes tools that are suitable for determining an area of substantially linear contact between the rubbing bodies, as well as auxiliary means to a reciprocal movement of the friction surfaces in the transverse direction of the threads or other products while they are moving in the feed direction, and according to the invention at least one the friction body on a plurality of friction elements, the device also including an arrangement through which the friction elements successively operated to engage the other friction body, and also an arrangement by which the friction members during the periods of their attacking the opposite one rubbing body transversely to the feed direction of the threads or other Products are moved and through which the friction organs on the other hand, during those periods of time in which they do not attack the opposing rubbing body, they return to their original position to be led back.

There is advantageously at least one of the rubbing Body from a roller with a plurality of each individually axially. sliding. Rollers se gmen ten, each of which extends over a part

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- 5 of the roller circumference extends. ·

According to another preferred embodiment of the invention the other rubbing body also has a large number of rubbing organs on, the device including an arrangement by which the friction members sequentially to engage the first friction bodies are actuated, as well as an arrangement which is suitable for triggering a movement of the friction elements in opposite directions, the. always occurs when these attack each other.

If the rubbing body or bodies is designed in the form of a roller divided into segments are, the friction members can be connected to a core part in such a way that they are in.der longitudinal - ^ with respect to this core part direction of the roller are displaceable. The roller is also marked with ■ · ü! Provided organs which are suitable to bring about a reciprocating movement of the roller segments in synchronism with the rotation of the roller. These organs can expediently consist of an or several stationary guide paths or guide curves and out one or more corresponding cams or contact members on each of the roller segments.

The device for performing the invention However, the process can also have a different structure. For example the friction elements are carried by a set of chains, the chains being arranged so that the friction elements are transverse to the

Move the feed direction of the threads or other products that are in

in this case can correspond to the direction of the chains. ™

Another aspect of the invention relates to the molecular orientation of thermoplastic polymers ,, in the form of a tape-like product or several tape-like products are present, these products being heated in a predetermined zone and up to can be stretched many times their original length.

A stretching for the molecular orientation of thermoplastics Polymer is usually made using two sets of rollers made, one of which is arranged at one end of the stretching zone the other, on the other hand, at the other end of this zone, with the.

ge speed

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BATH ORIGINAL

- 6 - speed than that of the second mentioned.

It is common practice to be precise Localization of the position of the stretching zone of a friction body served (The friction that occurs on smooth metal surfaces is for tiles Purpose usually sufficient), and in addition, friction bodies can also be provided instead of the rollers on the feed side, where the speed of the material across these bodies then influenced by a corresponding dimensioning of the frictional effect can be.

As already mentioned above, the stretching process is often facilitated by either the material in the stretching zone heated by means of a hot air device or that the supply side Rollers or the interposed friction body heated.

One of the objects of the invention is to reduce the risk of tearing to reduce during the stretching process.

In the context of the invention, this is achieved by the product or the products in a sequence more continuously Operations before stretching or during stretching in the heated state subjected to a turning process, whereupon the rotation entirely or is partly eliminated. This turning process is preferably carried out in such a way that the threads or other products are in the manner described above Way twisted around its longitudinal axis, but if desired, other twisting methods known per se can also be used for this purpose Consideration.

It has been shown that the combined rotary and The stretching process for a given stretching ratio is a considerable one Reduction in the frequency of tearing can in particular then be achieved can, if the material has clearly delineated material defects, for example in the form of occluded air bubbles, if an inhomogeneous Distribution of relatively high molecular weight and relatively low molecular weight components is present when the thickness of the material is uneven or if there are cracks or indentations on the edge of the tape-like product or products. Turning the Made the product or products more compact,

whereby

009842/1794 BAD oriq.'Nal

the individual.Teile are held together in the cross section of the product or products by frictional forces, so that it then a nascent rift is less likely to spread further. It is essential that the material is heated before it is subjected to the turning process, as it takes a considerably long time to warm up the material in the turned state.

longer period of time is required.

For practical reasons, it is preferred to produce the twist by twisting the threads or other products between two rubbing bodies which are arranged on the removal side of the stretching zone. Most of the time, a multitude of band-wise is used at the same time . -. - -like products are subjected to the stretching process, and finally these are wound up in the form of the individual product or in the form of ^ bundles of such products. It is not necessary for. To provide a separate rotating member for each of the products or for each bundle of these products, but within the scope of the invention a plurality of such products can preferably be subjected to a rotating process by one and the same pair of friction bodies in different areas of their friction surfaces.

. ■: = ,. The invention also includes a device -JZiUJr ₀ implementation of the combined rotating and stretching process. The ash device comprises an arrangement by means of which a belt-like product or several belt-like products can be subjected to a heating process, and an arrangement which allows the produce to be stretched to a multiple of its original length ,

an arrangement is also provided within the scope of the invention, - ■ - "

which serves to ^ the products in a continuous work sequence Submit turning process before or while in the heated state be stretched, whereupon the rotation is completely or partially removed again. .

. _ When handling relatively wide film strips, such as those with a width of 3 to 30 cm, the risk of tearing can be further reduced by an arrangement of the longitudinal axes of the feed or heating rollers on the one hand and the auxiliary or forging rollers, on the other hand, provides in an angular position. Here- *"

by means that the rotation starts earlier after the

ribbon-like '. . ·

00984.2 / 1794

tape-like products emerged from the last set of feed rollers so that the occurrence of edge cracks or further tearing is prevented before a final tearing occurs. Even the rotation of the products is more even in this case. Furthermore it has also been shown that at a given stretching ratio the angle which the roller axes form with one another should preferably have such a value that its cosine is approximately equal to that The square root of the stretching ratio or less if you have that Stretch ratio defined as the ratio between the feed side and the removal at the feed speed in the stretching zone, and that the risk of tearing at a given stretching ratio is entirely can be reduced considerably if the angle is chosen so that the stated condition is satisfied.

The invention will now be described in detail with reference to the accompanying drawings. In the drawings demonstrate:

Figure 1 is a schematic perspective view a pair of rollers, as it is for carrying out the invention Method is used, the guide devices for better clarity are omitted in this illustration;

Figure 2 shows a representation of the guide device Roll of the type shown in Figure 1 in side view with parts shown in section;

Figure 3 is a cross-sectional view in one along the line Line I-I of Figure 2 laid section;

FIG. 4 is a schematic perspective illustration a device according to the invention »the wrong turning and desirable enf al Is is used for simultaneous splitting;

FIG. 5 shows an illustration of a device according to the invention, which serves to split ribbon-like products into four work stages;

FIG. 6 shows a schematic representation for explanation a method of stretching band-like products, the rotation being brought about by means of two endless rubber bands;

figure

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FIG. 7 shows an illustration to explain a stretching process, in which the rotation is controlled by a single, divided into segments * split roller is brought out in cooperation with an ordinary roller; and

: Figure 8 is a schematic representation for explanation

another method of stretching tape-like products.

In FIGS. 1, 2 and 3, the reference number 1 denotes a falcon core which is set in rotation by a drive device (not shown), and the reference numbers 2, 3, 4 and 5 denote segments of an outer roller part. The structure of the roller core 1 and the segments 2, 3> 4 ^{un (} i 5 is such that the segments are entrained during the revolutions of the roller core -,

but they can move freely to and fro in the longitudinal direction of the roller. The graphic representation is greatly simplified and in practice these movements would preferably be transmitted through bearings, which may be rows of rollers, for example. The segments are held together by rings, one of which, here designated by the reference number 6, is shown in FIGS. Another possibility is to provide a dovetail connection or the like for assembling the segments and the roller core. The representation of Figures 2 and 3 can also be seen that on each of the guide pins 7 segments ^un ^ i ⁿ äem ring 6, a guide groove 8 are provided accordingly. This arrangement is shown in a simplified form and in practice jl

to mediate the connection through camps. For example, for each of the pins 7 a ball or roller bearing can be provided. Each the segments are provided with a rubber covering 9.

In Figure 1, the directions of rotation of the two rollers and the longitudinal direction of movement of segments 2 and 4 of each V7alze indicated by arrows. The segments 3 · and 5 rest in the graphic representation captured the moment in which they each reached the extreme position in one and the other direction of movement to have. If the salts have then carried out a quarter of a full turn, segment 2 becomes the upper roller

• duroh

wheel 0098.42 / T79.4

be displaced by a fluid sliding movement into the position that segment 5 still occupies here in the drawing. Each of the segments therefore carries out a back and forth movement that takes place concurrently with the rotary movement of the Y / alze. If relatively few segments are provided, as is the case with the arrangement shown in the drawing - and in principle it is also entirely possible to provide only two segments - CIe guide curve 8 should be over a relatively long distance in that area in which they · convey a movement guide in the roller clamping zone, have an essentially constant curve gradient. The guide curve should be designed so that the Y / roller segments at least from the point in time at which the sliding edge of a segment reaches the roller clamping zone to the point in time at which the rear edge of the same segment leads out of the roller clamping zone will move at a constant sliding speed, that is to say over a quarter turn, if four segments are provided, as is the case here in the drawing. However, if ten or more segments are provided, it is generally permissible for you to change the speed gradually.

In the device shown in Figure 4 is a Number of threads or foil strips (in the drawing here foil strips, for the sake of clarity) initially through a standard one Gunmi roller pair 11 fed and then between two segment rollers 12 pass ge, which bring about a twisting effect, which results from the successive attacking of friction organs, each of which performs a predetermined duty cycle. Instead of a pair of segmented rollers, it is also possible, for example, to interact a single segment roller can be provided with a conventional roller. Another option would be to combine one usual roller with a string of segments, which is moved along a closed path with the help of endless chains and perform the transverse movements corresponding to those of the roller segments described above.

The threads or strips 10 become in the untwisted state fed, the drilling process causes them to be rotated,

as soon as

009842/1794 BADORiGINAL

- ii -

as soon as they emerge between the rollers 11. This turned Threads or strips are denoted by the reference number 13. The state of rotation is thermally fixed in that the material is heated in a heating device 14 and then cooled by a fan 15 before it passes between the two rollers 12. After drilling, the material becomes a device (not shown) fed to the winding or spooling.

This eliminates the rotation and leaves the material therefore the pair of rollers 12 in the incorrectly rotating state, as in FIG is indicated. If the material consists of highly oriented strips, a split can occur at the same time, and this will be the case to a lesser extent in the zone in which sghon the strips are rotated, i.e. after passing the rollers 11, j

to a greater extent, on the other hand, in the zone in which it is subject to the torsional action ^

by "the rollers 12 are subject.

However, a split can also be made without that a false twist is retained in the end product} whereby the heat treatment or any other treatment for fiber fixation is omitted in this case. Should the process also result in a split be brought about, it is advantageous to repeat the drill process for several sharks by making several operating points of the same Type directly connected in series «This case is shown in Figure 5 shown. In the splitting method illustrated in FIG band-like strips 17 are initially split open by a simple twisting around their longitudinal axes, without a displacement at the same time or the longitudinal axes are shifted "It has been shown that"

this is advantageous for initiating the splitting process. One treatment this type is carried out by means of a pair of rollers 18, the rollers of which are formed with sliding segments, such as this is explained above with reference to FIGS. 1, 2 and 3 became. Also for a number of roller pairs 19, 20 connected downstream and 21 is a structure with each. Slidable segments provided, but occurs when passing through these in combination Drilling around the longitudinal axes of the strips on the one hand and an offset of these longitudinal axes on the other.

Do you want to set the conditions that will be respected?

have to

0098Λ2 / 179Α

BATH

must, if the strips or other products are to be subjected to a simple twisting around their longitudinal axes on the one hand and if, on the other hand, the longitudinal axes are to be offset at the same time, attention must be paid to the resultant of the circumferential speed of the rotary movement for each of the two friction surfaces engaging one another the speed of displacement. If there are resultants for the two friction surfaces that are numerically the same (but differently directed), the strips or other products advertise a simple twisting around their longitudinal axes. In contrast, have the two resultants different numerical values (and different directions), as is done at the same time a displacement of the longitudinal axes ier Pc'en. It is possible to determine whether it is possible to choose the speed of the rotary movement and that of the displacement movement of the salt segment in such a way that the feed direction of the strips or other products deviates considerably from the 90 direction to the roller axis without this Shortly before the strips or other products are gripped by the two rollers 19, they are passed through eyelets which are provided in a rod 22 which can be moved to and fro, so that the Products - are fed to the roller clamping zone in ziokzackforr.ri.gem L ^ uf, which in this stage of the splitting is beneficial for. After splitting when passing through the roller pair, there is a passage through two conventional pairs of rollers 2'i and 2.Ί, through which the strips or other products are subjected to a stretching effect in order to eliminate kinks and the like, as they arise in the longitudinal axis displacement of products can make. Two additional roller pairs 25 and 26, which are provided behind the roller pair 20, and two further roller pairs 27 and 25, which are connected behind the roller pair, also serve the same purpose serves to soften the 1.1 material shortly before it enters the last opening point. The heating in this heating device and the cooling, which is carried out with the aid of a fan 30 and which takes place immediately after passing through the splitting zone, while the

mutually split η

009842/1794 ^BAD ORIGINAL

- 13 - ■ ·.

split fibers kept in a relatively relaxed state is used to fix the loosened or curled state, in which the pasers are brought during the splitting process, when there is a shift in the ego of the threads. Then be the threads wound up.

In the method illustrated in FIG a plurality of band-like products 31 which are to be subjected to an orientation, initially in the flat, non-twisted state a heated pair of rollers 32 (the heating device is not shown here) , whereupon these products are passed between two intersecting endless rubber belts 33, which in the figure only are shown in the detail. The drive rollers and other rollers i

for the two rubber bands 33 and their guide devices also not shown.

The dash-dotted line 34 is intended to indicate that the rubber bands on the federal γοη strip are pressed against one another along a substantially linear area. Rollers can be used for this purpose, for example, or stationary surfaces can be provided for this purpose, a lubricant then being applied between these clamping or pressure surfaces and the rubber bands. The two rubber bands move at an angle to each other and cause the strips clamped between them to twist or should. At the same time these strips out through the rubber bands and a feed with a feed speed Running _a ge

speed equal to the partial speed of the rubber bands in the ^

Longitudinal direction of the machine. The two rollers 32 rotate with a lower peripheral speed, with the ratio between the mentioned falling speed and this peripheral speed substantially equal to the desired stretch ratio is. In this way, the strips are stretched and rotated at the same time. The tailing as well as the turning takes place predominantly in of the zone adjacent to the salts 32 after the strips between these 7 / alzen stepped out. The rollers of a roller pair rotate with a peripheral speed that of the mentioned movement component corresponds to the rubber bands, and thereby support their rear-end effect. If these rollers were not provided, so

would have to

00-9842 / 1794

the two rubber bands would have to be pressed very firmly against each other, which could not be reconciled with the practical requirements. In any event, the rotation caused by the rubber bands is essentially eliminated again when the strips come out of the nipping zone emerge between the rubber bands. In addition to heating the folds 32, between these rollers and the clamping zone of the Rubber bands can also be provided with a hot air device. The stretching zone and the rotation zone can thereby be enlarged, so that higher feed speeds are then possible.

In FIG. 7, the reference numerals J1 , J2 and 35 have the same meaning as in FIG. 6. However, in the arrangement of FIG. 7, instead of the rubber belts, a pair of rollers 40 »41 is provided. The roller 40 », which is a roller of the usual type, is shown here in dashed lines and is arranged between the strips JiI and the viewer. The Y / roller 4I arranged on the other side of the strips is a segmented roller of the type shown in FIGS. 1, 2 and 3. The Y / alze 40 shown here has a fairly large number of segments, which is usually advantageous. The dashed line 42 represents the projection of the trajectory that a certain point of any segment travels in the compound movement. The guide devices for moving the segments in the longitudinal direction of the roller are not shown Angle aC to the rollers 32 and to be arranged, and also the combined speed of the friction surfaces of the roller segments in the roller clamping zone should be equal to the circumferential speed of the 7felze 40. Since the feed direction coincides with the bisector ces Vfinkels between the movements of the two roller surfaces, in Principle can be established that the strips move in a straight line through the stretching device 7 / Alzen clamping zone regulated.

_.._ One

BATH ORIGINAL

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Sufficient grip that Yfalzenreibflächen can by sandblasting or with the help of a rubber coating can be achieved, but the transverse movements can also be endless Rubber bands are transferred from the rollers to the strips. the Rubber belts and the roller surfaces can then interlock by means of a groove pattern in order to prevent lateral slippage.

The method illustrated in FIG. 8 serves to stretch wide strips in such a way that the risk of tearing the strip is largely turned off, which is achieved thereby is that an arrangement of the longitudinal axes of two main preheat rollers and the pull-out rollers are provided in a 7/16 inch position. Tape-like film strips 51 are first between two preheating rollers 52 and two main preheating rollers 53 passed, whereupon they are given a rotation between two rollers 54, v / obei die one of these rollers has two or more axially displaceable roller segments; which each extend over a part of the roller circumference, while the other of these two rollers is one that only performs a pure rotational movement. After emerging from these rotation-causing organs, the strips, which are now wholly or partially twisted, are between two auxiliary or stretching rollers 55 passed, the circumference speed equal to the sum of the components of the circumferential speed and the axial speed of the roll segments in the 7fe.lze.nspaltbereich of the former roller 54 in the direction of travel the film strip and also the component of the peripheral speed of the other roller 54 is also equal in the direction of movement. As you can see in the drawing, twisting the individual strips immediately after they exit the pair of rollers 53. ■

BATH ORIGINAL

Claims

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Claims (12)

Claims 1. Method of twisting threads or ribbon-like products around theirs Longitudinal axis, the twist taking place in an essentially linear zone between two friction bodies, the friction surfaces of which are in the Perform aeer products are moved against each other while this are moved in the longitudinal direction, characterized in that at least one friction body is provided which has a plurality of Has friction members (2, 3, 4, 5), which successively to attack can be actuated on the other friction body and, for the duration of this attack, can be moved transversely to the direction of movement of the products, the friction members (2, 3> 4 »5) during the periods of time that they do not touch the other friction body in their initial position are traceable. 2. The method according to claim 1, characterized in that a 7 / alze with a plurality of individually axially displaceable as the friction body Wa] zense pensions (2, 3> 4> 5) is provided, each of which extends over a part of the circumference of the roller. 3- Verfshren according to claim 1, characterized in that the other Friction bodies a large number of friction elements (2, 3i 4> 5), which successively result in: engaging the first friction body Betfitifjbar are, where 5 ie each attacking friction points (2, 3> 4 »5) always movable in opposite directions sense . 4. Movers, according to Ansr: ruch 3, - "a by re-identifying that the transverse movements the iteihur.g body by endless belts (33) on the products are transferable. 5 · Verfahr, according to claim 1, iaiurclj characterized in that the friction surfaces (9) r. At different speeds in the movement. ^ Ngs- · direction be7re £; cash are. 6. Apparatus for carrying out the method according to claim 1, which has an arrangement which is p-eeijTiet, an area of substantially linear contact between two friction bodies? /; best!., -r.en. uni the also an arrangement for mutual bevelling over heibf laugh across the forthewer-anrjsrich tang of the products during c eren BAD ORIGINAL 009RA2 / 1794 'the feed movement of which ¹ has, characterized in that at least one of the friction bodies has a multiplicity of additional organs (2, 3, 4, 5), the device having one in the sense of letting the ancillary organs (2, 3, 4) engage one after the other. 5) ^{on the} other heating unit (1) and one to move the lifting members (2, 3, 4, 5) during the time they are engaging the other row body transversely to the local direction of movement of the products and to return the row members (. 2 ″, 3 ″ 4 ″ 5) in their starting position during the periods of time in which ^{no action is taken} on the friction body arranged in opposition to actuatable arrangement (6, 7 ″ ⁸ ). 7. Apparatus according to claim 6, characterized in that at least. ^ one of the ^ exercise bodies as a roller with a multitude of one ^ zein axially displaceable 7 / alzensegmenteη (2, 3 »4> 5) is formed, each extending over part of the roller circumference. 8. The device according to claim 6, characterized in that the other friction body also has a plurality of body organs (2, 3, 4 »5), the device having one in the sense of a successive attack by the body organs (2, 3» 4 »5 ) ^{on the} first friction body actuatable arrangement (1) and one that can be actuated at any time during the period of mutual attack of the ovarian organs (2, 3> 4 »5) in the sense of triggering opposing movements of the ovarian organs (2, 3» 4 »5) Arrangement (6, 7 »3) aufvieist. 9. The method preferably according to claim 1, wherein the band Ä like product or, in the case of * the ribbon-like products, thermoplastic Polymers acts, characterized in that the product or the products in a continuous sequence of operations Before or while they are being subjected to turning process, im heated State to be stretched, after which this brehung wholly or partially is eliminated again .. 10. The method naefi claim 9j, characterized in that the 2rhitzun £ of the tape-like product or the tape-like products before the turning process he follows. 11. The method according to claim 9, characterized in that the rotation by grilling it. Product between two at the removal side ä_e_r. 000842/1794 - 18 rubbing bodies arranged in the stretching zone are produced. 12. The method according to Anspruoh 9, characterized in that the tape-like Product or the belt-like products ron the pair of rollers (53) on the Entrance side of the rotation zone can be deducted at an oblique angle. BATH ORIGINAL 009842/1794