DE1435721A1 - Fiber curling device - Google Patents

Description

DR. I, M. MAAS DR. W. G. PFEiFfER PATENTAN VV S L T E MUNICH 23 UNGERERSTR. 25 - TEL. 333036

A 79 453/34

Turbo Machine Company. " Landsdale "Pennsylvania"

Yo st? ο Aa

The invention relates ei oh to the Verforciung iron tow for the production of synthetic staple fibers and more particularly, the invention relates to a method and device for sequential operation Crimping the individual fibers of synthetic tow, to bring them into a non-linear form, in which they are then fixed in place by a heat treatment, preferably before they are put into stack lengths for manufacture cut by yarn from these fibers ο

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The registration has already - the -? Extension of certain 'binriclituals to the! Iräuselii' -from- epitheti ~. see weakly twisted single-thread yarns in order to produce light and fluffy continuous 3-sided threads, which are particularly suitable for knitwear ; ^{/ r} - ^{; "To} spun Stapeigarnen geeignetf the la lightweight ₉ soft, slightly elastic fabric with Yerbess ^ rtear own" echaften be processed '' Di © Hersteilimg of G & fi & IIES ^one from the pile yarns "as' ersssugt this Brfindijng provides jedoah no rope this e ^

According to this invention, a web of synthetic "fibers is pushed forward continuously against an elastic obstacle in the direction of the axis of the fibers, so that the lasers assume a crinkled, non-straight line pattern, where the individual fibers are permanently fixed by heat treatment," she said retain the curled shape or contour and return to this shape when they are deformed by the subsequent processing steps, whereby these fibers are stacked again and, if desired, mixed with other staple fibers and then processed first into a yarn and then into a fabric * si © dieaera tissue a high

9 0 9 8 18/09 75 "; ^{: 8AD}

Give level of softness and improve Yield as well as improved elastic properties of this fabric «

Accordingly, the invention aims at a device for continuously advancing a web of tow against one. to create a yielding obstacle? said sheet having a plurality of continuous synthetic threads of which usually each a diam "ä ser of about 0.00254 cm (0.001 inch) besitztο piping path consists of one to 200,000 filaments * progressively and at the same time by advancing against yielding obstacle to be ruffled ο

Bine further object of this invention is to provide an apparatus for the purpose specified comprises a pair Beschickungswalsen _f of which at least besitst a a 430 small diameter "that a pair of substantially mutually parallel J ¹ Uhrungswänden, the two next to deal gap between the Wels are arranged to enclose a "progressive mass of crimped durations" between them in such a way that this mass forms a resilient obstacle for the following fiber parts, which are pushed forward in the axial sighting of the threads, when they emerge from the nip.

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f-

th, whereby these fibers assume a curved shape, in which they are fixed by heat treatment, which is usually done before the crimped fibers are in relatively short lengths for the sapal production subdivided ' will*

The invention is illustrated in greater detail, for example, with the aid of the figures explained ». '

Figure 1 shows schematically a greatly enlarged ends «· calibrates the Y / alssen and part of the with these rollers cooperative mechanism ο

Figure 2 shows a plan view on a smaller scale the device shown in Figure T o

FIG. 3 shows a rare view of the device c on the same scale as FIG . ■

Figure 4 shows an end view on a reduced scale; being the way presented let «on the the the Orphans supportive. Plates adjusted relative to each other and be held »

FIG. 5 shows in a view similar to FIG. 1 (a modified embodiment according to the invention on a smaller scale and * 4

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143572T.

FIG. 6 shows a Tellanaioht of yet another embodiment according to this invention in an even smaller manner Mafiatabe ■.

In the drawings, two plates 1 and 2 are shown, which are elastically held together by bolts 3, courage tern 4 and springs 5 near their bands ο adjusting screws 6 are screwed into one of the plates and sit with their ends in depressions 7 »in the The purpose of these wells is clear from the following description the plate 2 are offset by an angle. Cylindrical rollers 16 and 17 are arranged in the hats 10 and 11 and rest on the lower surfaces 18 and 19 of these grooves and, as can be seen from Figure 1 , and when the plates are parallel to each other, surfaces 12 and 14 are farther apart than surfaces 13 and 15 »

· Means not shown are connected to the Walsenwel-1 · β coupled 20 and 21, to drive this in entgegengehetate directions, while respective other inputs ^l

909818/0975

directions »which are also not shown, the -Werg 3? continuously move between the plates to the gap between the rollers, preferably with gentle tension, to avoid entangling or tangling of the im. generally parallel fibers of the tow, so avoid o Pie dimensions of the web parallel to the roller width are relatively large compared to the thickness of the web, a _e Bo and mountain railways with a width of 10 to 25 oxa (4'bis 10 inches) usually from .1 * 6 to 3.2 mm (1/16 to 1/8 inch) thick «The nuts 4 on the screws or bolts 3 form susenmen with the Sinstellqchrau: -» ., Ben 6 executions, around the bridge einssustell @ n ₉ of; dan T / iron auegeübt the VTerg _r weim this nip pa8si © rt «L χ

In operation, the flatten * 1 w && 2 wat Any-ge. «°

- ... - ■ ■ '».- ■■ - - iilgnetö ?! carrier attached 'and di @ Emtt @ m 4 © owi® ä ± 2

' Sehrauben 6 auf'di @ strenghts d®r "Wergbahn ϊ - © iäg®iitellt, ₉ -;' so that the orphans are concerned with this bridge on this railroad- 'fiajifftHMU. They orphans, * by don w@rAi.gsten «a® in front of * · iäug» w © i @ e a Sisröhmeeser. in the size crdnia ^ by @twa . 5 »2 M @ ' t2 _t l mm (i / 8 to' t / 0 1ηοίι) οά © χ 'sitstf' when relatively thin vertebrae wi hirna-nails s ± next ₉ , with suitable ffesofcwindlgSeiten # g®tJ? i®: b ^ iy ^ν #

. the 'w> xgfM.ts9ft in advice of' dem

'an immediate

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eohleben, which is essentially perpendicular to the faeeraeoheen in order to curl the fibers. "The obstacle should normally rise at a speed of the whale-aenepalt" which is equivalent to the accumulation or aneemra- tion of the curled faeer and when the obstacle emerges from a Hasse Iff consists of crimped fibers which are held in place by friction in the vicinity of the whale gap because the two sheet surfaces are held fast Rollers »gap ansannelno The plate surfaces, if they are arranged essentially parallel to each other and to the contact plane of the ¥ alsen _v as shown in Figure 1,« form a passage for the crimped fiber tow which is symmetrical relative to the plane of the Waleenenaltes ie to Wenn but an asymmetrical pas say or asym ~ metrieoher passage is desired, it can-be obtained * lotea, as shown in Figure 5, something "ground flatten verdatet" so that the plane lying lzenaohsen in which both W _a 'a non-right angle with the Guiding the flattening includes = these plates can also be arranged in a non-parallel position to each other by suitable adjustment of the nuts A and the adjusting screws 6

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Usually the WCP that is pushed between the rollers will collect when they are set correctly be driven at the correct speed, automatically «wipe the guides» as a result of the initial inclination of the fibers? on one or the other

JSU haf th ': /. ^: ' ^[ \' - '■ "' -, - ■ the rollers / ianT after the fibers between the rollers until they have been peeled off from the contact edge of the corresponding plate hole which engages with the periphery of the corresponding roller einzu the guides · "lead until a Hasse crimped fibers see Jen" side of the rolling has accumulated that is sufficiently large to with the guides in Reibungseinfriff come ₀ Then, the rod can be pulled out, after which the Führüngsflachen 13 and 15, the The mass M of the crimped fibers is held firmly by friction in close proximity to the roller and when the hassle increases due to the crimped fibers being fed between these guides, it overcomes the friction, so that the crimped paeerwtjg is gradually advanced between the guides and into a suitable, not shown container or a conveyor is ejected, which the bevel rn leads through a heating chamber if the heat treatment is to follow the crimping immediately.

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Treatment is required »to avoid the non-linear ruffled Fix fora of the fibers see below »If, however, it is preferred, to shorten the ruffled tow to pile lengths, then it is heat treated either by the batch or continuously fed to the lengths »

Bs is emphasized that the puckering of each Fibers in the tow of this invention as a result. of the impact on the obstacle in the axial direction of the fibers transversely sur Vorechubarichtung same takes place and In view of the great flexibility and the possible compressive strength of the individual fibers, it is essential that the obstacle is very close to the point where it is The fibers are fed in that the roller gap is reached. Therefore, words have to be boring at least • üie orphan ait little one. Diameters are used because Otherwise, without the use of the side plates, it is difficult to do so, which is an effective obstacle from being curled Fibers exist, bring them close enough to the orphan gap, among other things, cause the following part of the fibers to take on a crinkled shape.

The Figure «1-3 seigea swmr the preferably used Wttsenendrdnimg * for the orphans in the weeenUiohe * Kill the same turoh * | eggs and store both in cowls are to rotate in deaim sj.e, nevertheless can also, an orphan

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16 »with a smaller diameter, for example 3.2 to 12 ₉ 7 (1/8 to 1/2 inch) can be used together with a much larger roller 17 * with for example 7.5 to 10 cm (3 to 4 inches) office knife As shown in Figure 6 4. if the large roller is sufficiently rigid, no intermediate bearing is required between the end bearings of this roller. in order to prevent the fibers of the tow from sticking to the roller and, together with the plate 1 'which supports the rollers 16 *, to form two friction surfaces which are necessary ^{for the backflow of the curled tows M 1 around the} Fibers coming out of the nip on the free Durohgang au hisderno

Each of the plates 1 '2 or a *' plate I ₁ ¹ together with the squeegee 25 of the illustrated in the drawings means practicing a plurality of functions from eineohliefllioh of paragraph tütsehe the false "aito> r they are in whole Läng" in conjunction and the eich rotates in äw Plattennii *, which means that sand bearings are unnecessary and the risk of the orphan sagging is avoided »Please another function is that the knife edge * prevents tow-

fibers on 4 orphans beyond this edge prevented and finally the rubbing surfaces steep a heaaung there »» which the advanced hatred of curled fibers

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“• It is the role of the roller to cause the fibers emerging from the nip to crimp come to reduce the friction, the special materials from which the ropes are made, • ind however not critical and can be varied if desired « ä

Ö09818 / 0975

Claims (1)

- 12 · -; ■ '■■::. ■ P a t c & ■ t & η a ρ τ ii <s h e Apparatus for crimping the individual fibers of a synthetic tow, characterized by a pair of essentially touching rollers by means of which they are engaged with the rollers in the large nip and a passage open on one side for the tow coming out of the nip comes, and form two opposed, parallel surfaces "which extend in the direction of whales axis over a distance" which is substantially greater than the width of the tow "which surfaces together with the orphans in the plane _S through the two Walsenaehsen is determined to be "slidable and spaced from one another" such that they are in frictional engagement with the curled tow at spaced-apart locations "by resilient devices which press the rollers and the devices which are in engagement with the rollers against one another and by means of devices around the VaIzen in opposite directions in the To drive intervention with the tow »to push this into the passage and to create an obstacle in this passage» that effectively slows down the advancement of the tow after it has passed the nip. 9090Ί8 / 0975 '- BADORlGfNAL Device according to claim 1 »characterized by a · plate» which has a groove which one of said whales. znn , the devices forming the passage enclose a surface of this plate which is adjacent to the groove Device according to claim 1 or 2 «characterized by • A plate which has a hat with an essentially rectangular cross-section in which one of these rollers is located located »being the floor area and an edge of this Hat are oriented essentially tangentially to this roller » 4 »Apparatus according to claim 1, characterized by a ^·: plate having a hat" that has a ira substantially rectangular cross section and its bottom surface is tangent to one of these rollers »wherein the bottom i laughing with the plane determined by the two roll axes, is, encloses an angle _o ' ο device zua crimping the individual fibers of a synthetic tow, characterized by a pair of long mutually parallel, substantially located ■ contacting rollers, duroh means to drive the rolls \ simultaneously in opposite directions by a pair of plates "in addition to the rolls '-closely·*-- 909818/0975 : ■: ■■■ - U - ■ ' are arranged and jt the substantially parallel surface-, chen, which are arranged opposite each other "aufwei-.," sen at least one of these? Plates in its area close to the other plate with a groove in the neck ^corresponds: loan rectangular cross-section having "the one of the rollers receives, keep the plates parall®l sueinander au by devices" usd fedentä * Bin ^ Μ · ', "" ■■ "■■" ■ - ■■ - ■ · ft * direction β2ΐ3 us the plates k ^ 6 »Door direction according to claim 5 _t & ® & w? Öh that the plate groove« has a bottom fiäslie »which is inclined dt? / Alze to the Y cross surface plate am- 1 β message; .according to claim 5 »öaäuroh that © in the edge of the plate © smut tangential su'd ©? Oven surface -.- '"' ■ - ■ ■ '". ■ '' before the corresponding WaI ^ a Device according to claim 5? ag.S ^ © h gek ^ nns®iohn © - $,. · that the Piattennut has a Bodepfläoh® that the "/ slse" located in the groove in the handle and an outer bead tangential to this hat -au this one Roller ran 9ο Device according to Claim 5, characterized in that the sod surface of this plate groove is in one plane 909818/097 5 ORIGIMAL BATHROOM ! ■ · ■ H35721 15 - is inclined to the Ä •• rtn surface of the plate and tangential to the roller, which is located in this groove and that little « βten · an outer band of the groove tangential to it Whales passes » Device according to claim 5 »characterized» that Means are provided which press the plates against one another and which are assisted by several screws which extend through both plates that Nuts are provided on the screws and a spring surrounds each! screw between the screw head and the corresponding nut and is connected to one of the plates in the Mngrif Γ eteth, and that adjusting bolts net> en each of the Screws are screwed into one of the plates and with the other plate are engaged, the springs keep the plates at a relatively fixed distance from each other « 009818/0975