DE1771833A1 - Method and device for the production of fiberglass bodies - Google Patents

Description

Patent attorney

DtpL-Ing. C-H.Huss

Partenkirchen
14th

Garaiaoh-Partenkirohtu, July 16, 1968 /

GLASWERK SCHUUtSR GMBH., Wertheim / Hain, Faaerweg Method and device for the production of glao-

fiber bodies.

With a well-known and widely used in practice Process for making Glaefaerkürpara will be discussed first aua streams of liquid or softened glass with a rapidly rotating exhaust streamnel continuously filaments generated. Before completing a single loop on the On the drum, the threads are lifted off by a scraper and at the same time in staple fibers of unequal length disassembled. The fibers obtained in this way are then suspended in a stream of air, guided along guide surfaces and at a point away from the dispensing drum Reduction of the "air to a fiber body as the end product, e.g. a flat fiber body, such as hats or fleeces,

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a.

or a ribbon-shaped fiber body, such as fiber ribbon or fuse or auoh bu a shaped body, such as 8 · B. Cane soles, condensed (German patents $ 82 496 and 976 682).

Both for the strings sticking out ale auoh for the Production of a body »from the fibers created by the threads these threads must batr. fibers old a flueeigen Medium. This happens in the Rogel on the way from the pinning point of the threads to the south Position »at which these touch the suction roamel for the first time. A device is used for this purpose, which acts as the width of the thread groups running off or the width of the suction drum absorbent cushion made of absorbent material appropriate place is attached so that the side by side If the threads are pulled off, touch the cushion soaked with the liquid »under tension, if possible. The pillow! Cann s.B. a to be absorbed on a rod and in the bulk of the consumption with a drip device continuously with nouor. Fluid are supplied. In practice it is not easy the liquid from the pillow to the high speed (over 2900 m / min) to transfer sucked threads. Ton has made many suggestions on this so far especially the method according to the Austrian patent specification 218 191 thermosetting.

In most cases this involves covering the pulled threads with a liquid, in dar practice

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Called "pounding", a threefold task too. One task is to give the thread an adhesion to the surface of the take-off drum during its rapid rotation, which is large enough to prevent slippage between the thread and the drum surface. In addition, the coating should make the individual glass thread supple and flexible so that it can be slit during processing from abrasion or other mechanical damage. Finally dia should ä the glass fiber according to their decomposition staple fibers produced in the costs of its compression fiberglass body, for example a sliver odor in a yet untreated with Binder.ittoi nonwoven, through the coating bsw a a certain tensile strength guaranteeing cohesion. Maintain liability among each other.

Besides these main unavailability for one There are of course no other liquid coating agents either Possibilities associated with the actual melting, such as the coloring of fiber bodies.

In practice, both with regard to the composition and with regard to the dosage of the coating medium, E.g. the sump, a problem to always meet these three requirements in the same way. In the preparation of So far, therefore, one has mostly been the coating liquid forced to make a compromise, i.e. a Hehrkoopenennten liquid put together, with the adhesion of the threads to the drum circumference guaranteeing, the drum upper r

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surface-friendly, the running properties eii.sa scraper « and the liability of those gained from the pads Components securing fibers in the fiber body with one another, which must also be mixable with one another and, if possible, come into effect in a side-by-side order should and even optionally colors or others

Ubarzugamodien must contain.

Also the dosage of the unit to be dispensed in the Zeil In practice, excessive liquid builds up considerable amounts Difficulties in particular because the above The mentioned requirement of the components coming into effect one after the other is practically often not fully Scope is to be realized.

For this reason, just enough UberzugeflUssigkeit to the Fäien one hand be applied as is necessary in order to make them suitable for the Tromaelabzug,) on the other hand, the individual staple fibers by dom Terlaseen the drawing drum are to have so much of it to their abrasion resistance and to ensure that they stick together in the fiber body. Overvoeing is already detrimental because the threads then release part of the liquid, for example the black malts, to the drum surface on their way along the drum circumference during extraction and transport to the scraper. The then adhering to the drum surface

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vereahauttt dl "drum whether erfltloh © and cereatit eioti duroh the constant friction" wipers and drum, whereby on the drum and on the stripper the further withdrawal of the threads or their lifting from the drum circumference and breaking down into fibers, disturbing residues arise. These residues also form a kind of "Schmlrgelpaate" with the remnants of the pad, which are often broken down into the finest parts, which attack the barefoot and make them increasingly unsuitable for the slower fadan withdrawal at night. So one is faced with the problem of either improving the surface of the drum by underdosing excess fluidity, & h? To exchange this disadvantage for overdosing, interrupting production again in order to clean the drum surface and abs grippers.

An under- or overdosing also has an effect on the spinning process eelbat, i.e. the formation of the threads the spinning cones at the heated end of Glasotäban or below the spinnerets of a Wanno containing liquid 01aε or Channel as well as pulling off and pulling off with a pull-off tray disadvantageous. When those running onto the trigger tronimel Threads have received too little coating, ao is theirs Adhesion to the drum surface is insufficient and they

are pulled off unevenly thick due to slippage. De-

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Due to the resulting eloh nloht only Durohaosserechttuakungen la fadent but the threads can, due to the ruokwaisen deduction, »even tear off or if they are not withdrawn for a moment, to a certain extent" stand still "and thus burn off at their suction tunnels. Too thick a coating also has a disadvantageous effect on the spinning pro3e83 in addition to the prescribed contamination of the drum surface xxnä scrapers. The threads "ochwiiuiEon". then more or less on the drum surface, which in turn results in an uneven pad thickness.

But the main goal is for the production of glass fiber sliver is a sufficient and uniformly distributed one The amount of peel is essential, as this increases the amount of yarn glue and the tensile strength directly depend. This is because an uneven narrow portion is uneven strength, which in the further processing of the faeerbandes leads to an uneven distortion, as a result of which again an uneven tern arises "

In the traditional way, the stripped threads are old It was the job of the faeererzeugungselnrlohtung to provide a smear coating Leave the working operator, the one between the thread take-off point and the take-off drum Sohnälzeinriohtung with more or less Schmälzflttseiglcelt to provide, which inevitably occurred in the finished sliver inadmissible fluctuations, which In practice la Values of 0.2 ble 0.8 Jt share of malt were measured. Is

BATH

Let’s make sense that the operation is first and foremost Line on the perfect running τοη drum and scraper and it came down to a visible contamination of the troaucol surface to avoid. So even where the type of fiber body to be produced has a higher Schoälzoantcil would have required, the lifter was often operated with a smaller percentage because the operation of the over a long period of time was trouble-free The run of the puller had to appear more important ' than the subsequently produced fiber body, the defects of which are not visible at first glance.

Hler initially seems to offer itself as a way out the fibers slightly sticking together Schmälze, as far as it is required for the cohesion of the fibers in the fiber body during further processing of the same only after the formation of the body is brought to the fibers that make it up. Si ·· has the disadvantage » that with this nature · ** · * only τοη the surface is effective { • amen method the la association de · fiberglass body τοη the Bowl on impregnating device, see B. Spray device, continue distant fibers not old enough Absorbing greases on their surface, a condition that makes everything in the production of a glass staple fiber ribbon or -Vorgarnes appears. It turned out to be in practice turned out to be impossible until the core of the produced sliver narrowed in the manner described bring in what is self-evident regarding.

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the tensile strength of the sliver for the adjoining, with several unlenkangen connected winding processes and also has a detrimental effect when it is processed into an oarn.

The method according to the invention eliminates these tile parts and generally provides for this purpose, the threads initially withdrawn and the individual threads arising from them.

™ eern old separate means and special, to the respective Process stage turned off substances to be coated. For this purpose, the threads are in a manner known per se to any a suitable location such as the Abepinnatelle and the the organ that lifts them off the circumference of the drum and, appropriately, the Fibers in them to the point of compaction to form a Faeerk body air flow individually with a suitable liquid coating agent, e.g. lubricants, adhesives, binders, Colors or the like, brought into contact. If you do this, you need bsi the composition or choice of

corresponding coating agent for the formation of the fiberglass body no longer has to take into account the spinning process of the thread, but can purely on the intended use or stop processing the corresponding product. Likewise, the necessary for the thread withdrawal with the drum Schmälze is now selected purely for the requirements of the thread cover and applied to the threads in precisely dosed quantities will.

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Accordingly, the invention relates to a method Manufacture of fiberglass cores, such as mats, fleeces, tapes, Fuses, molded bodies and the like, in which threads produced on any catfish are pulled out and pulled off with a drum that when removed from the drumuia trap in fibers of unequal length, suspended in a continuous stream of air, along guide surfaces onto a storage surface or guided into a storage space and, with the elimination of the air arrows, partly to the continuously created fiber body are compacted, with the stripping of the filaments through the drum and the formation of the fiberglass body being the coating treatment request with a liquid medium. These" The process is characterized by the fact that the threads are coated on the one hand and the individual fibers produced from them on the other hand, before these are compacted to form a fiber body, they are carried out in separate stages For this purpose, for example, the fibers emerging from the threads can move in the air stream on their way along the guide surfaces and before they compress to form a fiber body, they release the treatment liquid individually into the air stream Funds are bypassed. The invention relates to furthermore suitable devices for carrying out the procedure.

Since the general idea on which the invention is based consists in the manufacture of fiberglass bodies covering the threads with a flUaoigan medium to separate from that of the fibers and for coating the

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Numerous threads, including from the applicant Proposed methods are known to deal with the Proposals for devices for carrying out the process according to the invention only with the second stage of the process, that is, the coating of the fibers emerging from the threads.

The invention is shown in the drawings on some devices suitable for carrying out the method and described below on the basis of this. It put darts

Flg. 1 flat a device for the production of one Qlasfaserkörpers »e.g. a fleece, a Mat, or the like. according to the invention in toilet section and reduced nose tab,

Fig. 2 is a side view of a device according to the invention for producing a tape-like or yarn-like GIa β fiber body,

Fig. 3 shows a section through the object naoh Flg. 2, section along the line IH-III in Fig. 2,

4 shows a section through an individual part of a device naoh FIGS. 2 and 3t

5 shows a modified embodiment of an inventive Appropriate device in the illustration · » art naoh Fig. 3t

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6 shows a vertical section through a further variant a device according to the invention sur production of a ribbon-shaped oil body,

Fig. 7 is a vertical section through another to the Execution fora according to Fig. 6 leaning against Embodiment in the Darstallungswsiee according to Fig. 6.

Fig. 1 shows in a simplified and eoheinatiach the part of a plant for the production of sheet-like Glaestapelfaeerkurpern that is of interest to the \ invention A large number (about 130 to 500) of threads produced in any way run parallel to one another after they have received a coating required for the threads to adhere to the suction tube using a known sciiauling device, for example a sizing bar on the surface of the Abiugstrommel, partly ait of the "Umlaufwind ¹¹ called, aitrotiorenden Oreneluftsohicht led to su a scraper 2, which is tangential or approximately tangential to the Troaael periphery and is attached to a support bar 3 pivotable about an axis Suction drum 1 moves in e in a partially enclosing housing called a "sleeve", the distance of which, in general, the wall 4 surrounding the drum surface, withstands the running wind. The Fort

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eetiung the duroh the drum surface and the inner surface the bottom of the shaped channel forms with the scraper 2 as an intermediate member a deflection device, generally designated 5, with anschllo3äender guide device 6, which leads the fibers to the place where duroh Compression a fiber body is formed.

The rotation of the drum 1 as shown in the arrow

The threads carried along in the direction A and continuously withdrawn from the fudge formation point not shown are lifted from the drum circumference by the stripper 2 and thereby disintegrated into fibers of unequal length.

At a suitable point, expediently on the actual deflecting part 5, possibly also in the horizontal wall serving as a guide 6, a coating flow 7, offset in arrow direction B i: rotation, runs either through a liquid medium immersion bath containing running or, as shown, is provided by a dripping or spraying device 8 continuously with a fine liquid überzugsnedium * the above supplied roller 7, whose axis 1st supported 9 outside the UmlenJtteiles 5, extends with a part 10 of its periphery in the deflection device 5 in , ie interrupts the guide surface which conducts the deflected fiber flow F and is formed from the U: alenkelu ~ direction and top wall, so that the

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individual fibers past the surface of the coating roller that extends into the Uialenkelnrlchtims alia β en and in doing so, remove the full amount of overflow medium from dleeer.

This ensures that the individual fibers on their way from the point of their formation to their compression to the passport body without the necessary liquid medium or to the largest toilet in contact, so that All of the products or almost all of the fibers are wetted with the respective liquid medium and the or their wetting does not depend on their position in the animal carcass produced or on the intensity of the coating of the threads produced as a preliminary product.

Even with thin CHaafaeervlicaon, like for example wise as a carrier material for the production of bituminous species Ölasvlies Bachbahnen, KorroeionascHutLbanv33 ^ Äa for pipes and containers etc. are used, is ce at Ajr.yerleid lierköcunlicher methods dor explained above. Reasons because of difficult, usually only a fraction of a millimeter to distribute a liquid treatment agent evenly across the cross section. But even more difficult it is, as known to the practitioner, with the help of conventional Methods, beiopielsweiae by melting the threads or using a spray device after making a ribbon-like fiber body, a liquid »e.g. a

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EU medium liquid, gleloh & ässlg bi in the core tint

Insert glass fiber tape, roving or roving into it. He et the method naoh dor invention, in which the individual After their division, they fit in contact with the liquid be brought, allows ee, a ribbon-shaped Faaerkkörper here to put in »the over the whole c.i cross section an equal and sufficient proportion of the desired Bo * liquid for sale. Attempts have shown daaa thereby the cohesion of the fibers in a considerable amount can be increased in the Faeerkörpor and, since it is connected, there is an increase in features.

One possibility of using the method according to the invention in the production of a ribbon-shaped fiber body, for example a glass atapel fiber ribbon, is illustrated schematically in FIGS. For this purpose, a "spinning funnel ¹¹ called shaft, sB a spinning funnel 11, is used in a manner known per se, which is composed of cylindrical sections 12 and 19, the section 13 being fully or partially provided with air outlet openings 14, and the section 12 in a take-off pipe 15 opens out, from which the fiber sliver FB is sucked off · The section 12 can of course also, and from this, because it was common for a long time, the reward "spinning funnel", be designed in the shape of a truncated cone · In the frenafage apart from the non-perforated and the perforated Section is a driven on any catfish and in

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Rollers 16 running transmission ring 17 arranged, deaaen inner table surface 18 in the τοη (Jen spinning funnel 11 delimited tree reaches into it. The one in the direction of the arrow 0 over a guide device 19 in the width of the Abzugatronmel Faaerluftetrom flowing into the spinning funnel 11 is in this one in line with the rear, with openings veraehene end face 20 steered, -because the Faaerluftetrom, following the path of least resistance to expand before opening the openings 14 in section 13 give opportunity. At the same time, however, the fiber air stream goes into a circling, calibrated to Acliae 21 dea Spinning funnel more and more condensing vortex movement over, whereby of course the in Hahe dee deductions » rohreβ 15 fibers flying into the spinning shaft are not at all or not as far as the rest in the direction of the sit Luftaustritteoffuungen provided section 13 deflected will. The vortex continuously developing in the spinning funnel becomes fibers perpendicular to the binary direction the fiber tape fB is sucked off. Most of the incoming In any case, fibers get lueret into the cylindrisohen rear section facing away from the suction pipe 15 and thus brushes against the protruding inner circumferential flange 18 of the transmission ring 17 along, whereby the liquid is released to the surface of the fibers. The transmission area can, for example, refer to the details in fig. 4 illustrated Catfish are supplied with the liquid medium that should be brought to the fibers. Hicrsu can

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Bores 22 running at an angle to the radii are provided in the transmission ring 17, with which the ring scoops the liquid medium out of a storage container 23, since when it is further rotated in the direction of arrow D it engages with the inner circumferential surface 18 of the ring. In this way the grusste part of virtually all contained in the Paeern sogsnannten "Faserschuanz" ait dsr desired liquid is brought into contact, wherein NATURALLY ψ lent AUOH over the length of the spinning Richtere ti is'ehrere Ubertragungsringe 17 * may be distributed.

Another embodiment of a device to carry out the inventive method, the can be used in the production of Glaestapolfaerband is shown in Pig · 5. In accordance with the invention One or more, e.g. three, slowly rotating, offset by 120 °, protrude into the spinning funnel 11 Transfer discs 24a, 24b and 24c into it, the k disc 24a from a gate pan 25 and the Überzugesohsiben 24b and 24o via drip devices 26a and 26b coating liquid obtained. At the slow turn the disks 24a and 24o thus get the liquid coating agent into the interior of the spinning funnel and is of there released from the surfaces of these transfer discs to the individual fibers moving in the "fiber tail".

The arrangement of several arranged in a plane perpendicular to the axis of the spinning funnel or along this Panes lying on the axis, e.g. three panes, can in particular

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Especially with high deductions, to achieve uniform distribution of the liquid coating agent in the ribbon-shaped fiber body. eondurn führt.ale a whole, as shown in phantom, a Bewegun & abiilm following K, {a circular motion. As a result, if, for example, a sliver of fiber is drawn off at high speed and only a single transfer disk is present, it can happen that only one toilet of the fibers comes into contact with the liquid coating agent, which is the case in the finished product at untreated areas that occur at intervals makes noticeable.

The transmission disks 24a bia 24c Lind expedient arranged in such a way that more or less size |

Circle sections in the rersehen with air outlet openings (Cell 13 dee spinning triohters can protrude. Dft » by is ea by choosing the speed and / or by setting the corresponding depth of the in the spinning funnel and thus parts protruding into the pas current possible to discontinue the desired coating agent content «

The one in the Pig. 1 bia 5 da «coating agent on the Single fibers transferring orphans, Riugc or discs 7t 19 or 24 are only suitable and tested examples to watch. If a suitable suction

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Capillary and capillary conductive material is used. These transverse parts can also be used as immobile rods, rings or soles. To do this, show the Pig. 6 and 7 other special, well-tried and practically tested possibilities of bringing an excess of liquid to the individual fibers. Fig. 6 shows an achenatic execution form in which in the spinning funnel, generally designated 27, a fluid transmission element extending over its entire width or a substantial toilet width in form of an eye-able material, e.g. Filzest, is to be foreseen, which is continuously supplied by auaaon with a liquid absorbed by it. The mushroom protrudes ao far into the interior 29 of the spinning funnel that the cheeses flowing in via the guide surface 30 of the deflecting device and initially moving in the vortex W on or near the inner surface of the spinning funnel on the part protruding into the interior as a stripping edge «31 of the Pilses while accepting liquid. For this purpose, the fluid can be held in a housing 32 and the liquid can be removed from a container 33. The degree of wetting depends on the absorbency of the felt, on the level of the floor covering in the container 33 and on the length or depth of the part 31 speaking into it.

Apart from the MiJgIichlreit that aehrer · the vorboechriebanen Types of fixtures in Koublc & fcioa use

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can find, the intensity of the wetting can be increased even further. If an extremely high proportion of a liquid coating agent of, for example, over 1 $ is required, then the felt 28 can be removed. Instead of the fils scraper edge 31, there is a channel-like scraping lip 34 extending over the entire open space of the spinning belt 3 in puncture, in which a steady liquid level is maintained by the container 33 via the housing 32 which is not filled with felt. The egg fibers, which are in a circular motion, brush along this channel-like abotion lip and are coated directly with the liquid level.

7 shows an exemplary embodiment, which is used in the production of glass atapelfacerband Use of a very simple and low-maintenance construction and, moreover, a constant and particularly precisely controllable use of the fibers can be achieved at dieter * ( Execution form is in one over the whole or one essential Part of the width of the spinning funnel extending gap-shaped opening 35 the fluid transmission element 36 inserted or hung in such a way that it protrudes into the spinning funnel. In addition to FiIs, eich Here, a close-meshed wire mesh that has been pulled onto a support plate 37 in advance has proven particularly successful. There" At the end of the protruding part of the transfer loan

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can be angled a little in order to offer the fiber air flow a certain resistance, so that the fibers safely rub along it. Compared to felt, which wears off after a long period of operation and loses its absorbency as a result of progressive resinification and hardening of the non-evaporating constituent parts of the coating liquid, the fine-meshed wire mesh W has the advantage of less maintenance and a longer service life. Also, fluctuations in the oversize content in the fiber product produced, for example fiber tape, which can occur when using felt for the reasons mentioned above, are avoided.

The wire mesh applied to a supporting plate in front of it is practically indefinitely and canoe spawns with Any contamination that occurs can be washed out, tlbor a - Not shown - metering device is mittols one t drip device 33 the liquid transfer element continuously with the coating liquid, E.B »an adhesive or color, supplied. The wire mesh has the task of distributing the applied liquid evenly and to hold, since otherwise the applied liquid will run off in an uncontrolled manner on a smooth surface. drain would. A hinge 39 allows the part 40 of the 3-pin funnel to be opened when cleaning or the like .

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Claims (14)

ill process for the production of alias fiber frames, such as hats, fleeces, fuses, tapes, pores and the like which the threads produced in any way with a! romfflel are pulled off and pulled off, the circumference distributed in fibers when removed from the drum, in oineja continuous Air flow suspended, along baffles on a Body training area or in a body training room and with elimination of the proportion of air to the continuously emerging fiber bodies are compressed, wherein the pulling of the threads through the drum and the formation dee Glasfaeerkörporo an Itberzugsbehandlimg with a require liquid medium, characterized that the covering of the threads on the one hand and the single fibers arising from them on the other hand, before these sum faeerl bodies are condensed into one another separate stages. 2. The method according to claim 1, characterized in that the fibers in the air stream on their way along the guide surfaces and before they compact to the fiber body, are individually guided past elements that project into the air stream and release the treatment fluid. - 21 - . 109882/0633 BATH ORIGINAL • * Zl- 3. Device for carrying out the process claims 1 and 2, gekennselohaet by fttr in the building delimited by the guide surfaces the air flow in the fiber, the treatment liquid donating funds. 4. Device according to claim 3, characterized in that the one or more rotates versetste, with part of their · ttafangee the Leitfläohen interrupting and into the guideway of the fiber air flow projecting transmissionaeleniar.to provided are. 5. The device according to claim 3, characterized in that the guide surfaces daee one or more interrupting, ground with a portion of the fibers in AIM currents · protruding, fixed transmissions ) element «are provided. 6. Device according to claims 3 uad 4 «ur Manufacture of a two-dimensional paper roll with a thread from the circumference of an Abeugatrommel lifted off and to Vaeern dividing scraper and an anaohlieaenden to it, guiding the fiber flow to the storage area, from guide surfaces existing guide device, characterized in that one or more of the guide surfaces (5, 6) interrupting, with a file (10) tares - 22 - 109882/0533 BADORIGiNAL · / ϊ rotating ones protruding into the path of the fibers (F) Transmission means (7) are seen. 7 · Device according to claims 3 and 4 for the production of a band-shaped Faeerkörpsre, with a Threads lifted from the circumference of a take-off drum and closed Pa8em dividing scraper and a calibrated to it, a spinning funnel generating a fiber vortex, from which the ribbon-shaped fiber body is withdrawn axially, "characterized in that an in the Spinning funnel (11) with part of its circumference protruding and slowly rotating the transmission wheel, disc or the like is provided. 8. gate direction according to claims 3, 4 ucd 7, thereby marked that the (transmission gear in the section provided with air outlet openings (14) (13) of the spinning funnel (11) or at the joint between this and the non-perforated | Section (12) is arranged. 9 · Vorriehtuug according to claims 3 and 4 and 7 and 8, characterized in that several transmission wheels (26) at one or more points along the axis of the spinning funnel (11) are arranged. 10 · Device according to claims 3, 4 and 7, dm through characterized in that one or more in the spinning funnel (11) old their inner circumference (18) projecting, slow rotation, concentric to its axis, transfer porter ^ o (17) provided and -23- 109882/0533 ORIGINAL BATHROOM - 2V- 11. Device according to claims 3 and 5 # known, permanent or several with a part of it reaching into the flow path of the fibers, fixed plüssigkeitsafegabealttel, a.B. iile stripes (28). 12. Device according to claims 3 »5 un4 11, characterized in that daee in the control device a socket (32) for a felt (28) opens, the outside of the guide device in one the liquid stocking container (33) ends. 13 * device according to claims 3, 5 and 11, daduroh marked that ala liquid transfer element has a groove-shaped abatment lip lying close to the inner wall of the spinning triangle (27) (37) is provided, on the principle of comaunicating Stirring via a line (32) with a storage container (33) connected 1st. 14. Device according to claims 3, 5 and 11, marked by a through a gap (35) ia spinning funnel (27) pushed in or hooked in close-meshed wire mesh (36) and one of these from the outside The transmission medium source (33) supplying the funnel. 15 · device according to claims 3, 5, 11 and 14, characterized in that the wire mesh (36) is absorbed onto a Tragbleoh (37). - 24 - 109882/0633 BAD ORIGINAL ^