DK141400B - Apparatus for making a veil or mat of fibers of thermoplastic material. - Google Patents
Apparatus for making a veil or mat of fibers of thermoplastic material. Download PDFInfo
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- DK141400B DK141400B DK201371AA DK201371A DK141400B DK 141400 B DK141400 B DK 141400B DK 201371A A DK201371A A DK 201371AA DK 201371 A DK201371 A DK 201371A DK 141400 B DK141400 B DK 141400B
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- DK
- Denmark
- Prior art keywords
- fibers
- skirt
- distributor
- fiber
- conveyor belt
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Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
- D04H1/4218—Glass fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/06—Manufacture of glass fibres or filaments by blasting or blowing molten glass, e.g. for making staple fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
- D04H1/4218—Glass fibres
- D04H1/4226—Glass fibres characterised by the apparatus for manufacturing the glass fleece
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Nonwoven Fabrics (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
Description
φ (11) FREMLÆGGELSESSKRIFT 1^11+00 DANMARK <s” ln, c|Sg S® § 33/03 «(21) Antegning nr. 2015/71 (22) Indleveret den 27· spr. Ι^γ·] (23) Lebedag 27. apr. 1971 (44) Antegningen fremlagt og ' fremlwggelaeiekriftBt offentliggjort den 10. tEET . 1 g Qq DIREKTORATET FOR ________.φ (11) PUBLICATION WRITING 1 ^ 11 + 00 DENMARK <s "ln, c | Sg S® § 33/03" (21) Note 2015/71 (22) Filed on 27 · spr. Ι ^ γ ·] (23) Life day Apr 27 1971 (44) The note was presented and published in the 10th day of publication. 1 g Qq DIRECTORATE FOR ________.
PATENT-OG VAREMÆRKEVÆSENET i30) Prioritet begaeret fra denPATENT AND TRADE MARKETS i30) Priority requested from it
29. apr. 1970, 7015678, PRApr 29 1970, 7015678, PR
18. sep. I97O, 7035876, FRSep 18 I97O, 7035876, FR
(71) SAINT-GOBAIN, 62, Boulevard Victor Hugo, Neuilly-sur-Seine, PR.(71) SAINT-GOBAIN, 62, Boulevard Victor Hugo, Neuilly-sur-Seine, PR.
(72) Opfinder: Jean-Jaeques KLrchheim, 73 Bis# Avenue de Bat tre de Tassigny 94, Saint Maur des Posses# FR. * (74) Fuldmægtig under tagens behandling:(72) Inventor: Jean-Jaeques KLrchheim, 73 Bis # Avenue de Bat tre de Tassigny 94, Saint Maur des Posses # FR. * (74) Plenipotentiary under the roof:
Internationalt Patent-Bureau.International Patent Office.
(54) Apparat til fremstilling af et slør eller en måtte af fibre af terooplas« tisk materiale.(54) Apparatus for the manufacture of a veil or a mat of thermoplastic fibers.
Opfindelsen angår et apparat til fremstilling af et slør eller en måtte af fibre af termoplastisk materiale# f.eks. glasfibre/hvilket apparat har mindst én tråddanner med dyser, hvorfra der udgår tråde af smeltet materiale, som strækkes og omdannes til diekontinuerte fibre under påvirkning fra en strøm hf luftformigt,varmt medlem, samt i forlængelse hermed et skørt og en fiberfordeler til at føre strømmen af nævnte medium og fibrene hen til et transportbånd.The invention relates to an apparatus for making a veil or a mat of fibers of thermoplastic material, e.g. glass fibers / which apparatus has at least one filament thread with nozzles from which threads of molten material are stretched which are stretched and converted into continuous fibers under the influence of a stream hf gaseous, hot member, and by extension a skirt and a fiber distributor to conduct the flow of said medium and the fibers to a conveyor belt.
Det er kendt at fremstille et slør eller en måtte af glasfibre ved at føre glastrådene fra tråddanneren sammen med strømmen af luftformigt, varmt medium,som omdanner glastrådene til diskontinuerte fibre,gennem en tragt, der er således udformet,at den udgående strøm med de medbragte fibre spreder sig ud til dattnelee af et nogenlunde ensartet 141400 2 lag af fibre på en modtagerflade. Tragten har to i strømningsretningen konvergerende storflader og to i denne retning divergerende sideflader, hvorved det udgående fiberbundt meddeles form som en vifte. På grund af de tekniske begrænsninger i forbindelse med tråddanerens kapacitet,mængden af varm luft pr. tidsenhed, temperaturforholdene og lignende betragtninger kan viftens topvinkel ikke være ret stor. Derfor kan bredden af sløret eller måtten heller ikke være ret stor,og i praksis kan man under normale forhold ikke opnå et slør med ensartet fiberfordeling, der er meget bredere end ca. 1 m.It is known to make a veil or mat of glass fibers by passing the glass wires from the filament together with the stream of gaseous hot medium which converts the glass wires into discontinuous fibers through a funnel so shaped as to produce the outgoing current with the fibers spread out to the bed of a fairly uniform layer of fibers on a receiving surface. The funnel has two converging large surfaces in the flow direction and two divergent lateral surfaces in this direction, whereby the outgoing fiber bundle is given shape as a fan. Due to the technical constraints related to the capacity of the thread dancer, the amount of hot air per unit of time, temperature conditions and similar considerations, the fan top angle may not be quite large. Therefore, the width of the veil or mat may also not be quite large, and in practice, under normal conditions, a veil with uniform fiber distribution much wider than approx. 1 m.
Ønsker man et bredere slør, må man give tragten væsentligt større dimensioner, og ligeledes må tråddannerens kapacitet øges væsentligt. Dé andre forhold må i så fald ændres tilsvarende.If you want a wider veil, you must give the funnel considerably larger dimensions, and also the capacity of the thread former must be significantly increased. The other conditions must then be changed accordingly.
Fra schweizisk patentskrift 471.923 kender man et apparat, hvor der til spredning af fibrene anvendes en ledetragt, hvori der tilvejebringes én turbulent strømning. En sådan løsning viser sig imidlertid ikke at virke tilfredsstillende, når man ønsker at fremstille et meget bredt og meget ensartet slør, idet turbulenserne, der fortrisnvis dannes langs tragtens sidevægge, ikke sikrer en jævn fordeling over hele bredden af sløret.Swiss patent specification 471,923 discloses an apparatus in which a guide funnel is used for spreading the fibers, in which one turbulent flow is provided. However, such a solution does not appear to be satisfactory when one wishes to produce a very wide and very uniform veil, since the turbulences, which are preferably formed along the side walls of the hopper, do not ensure an even distribution over the entire width of the veil.
Opfindelsen tager sigte på at afhjælpe disse vanskeligheder og giver anvisning på et apparat, der giver mulighed for at opnå et betydeligt bredere og meget ensartet slør på transportbåndet.The invention aims to alleviate these difficulties and provides an apparatus which allows for a significantly wider and very uniform veil on the conveyor belt.
Med henblik herpå er et apparat ifølge opfindelsen ejendommeligt ved, at skørtet omfatter to i det væsentlige plane og i retning bort fra dyserne mod hinanden konvergerende storflader, der er beliggende på hver sin side af strømmen af luftformigt medium og fibre, og at fiberfordeleren er anbragt umiddelbart efter skørtets udgangsende og omfatter et eller flere afsnit, der hver udgøres af to i det væsentlige plane, i det mindste over en del af deres udstratoiing mod hinanden konvergerende storflader,hvilken fordeler er således indrettet,at den omgiver strømmen af luftformigt medium og fibre og udmunder oven over transportbåndet, og således udformet, at der induceres mindst én luftstrøm gennem fordeleren, og at tværsnitsarealet ved indgangen er lig med eller.mindre end tværsnitsarealet ved udgangen.To this end, an apparatus according to the invention is characterized in that the skirt comprises two substantially planar and in direction away from the nozzles converging large faces, which are located on either side of the flow of gaseous medium and fibers, and that the fiber distributor is arranged immediately after the exit end of the skirt and comprising one or more sections, each of two substantially planar, at least over a portion of their radiusing converging large surfaces, which are arranged so as to surround the flow of gaseous medium and fibers and opening above the conveyor belt, so designed that at least one air flow is induced through the distributor and that the cross-sectional area at the entrance is equal to or less than the cross-sectional area at the exit.
Kombinationen af et skørt af den her angivne art og en i forlængelse af skørtet beliggende fordeler, hvori der udover den fra skørtet hidrørende strøm af varmt fluidum og medbragte fibre også induceres en luftstrøm, har til resultat, at fibrene fordeles ensartet over en betydeligt større bredde, der f.eks. kan være op til 3 141400 to gange bredden af det fiberslør, der kan opnås med den kendte teknik .The combination of a skirt of the kind set forth herein and an extension of the skirt extending in which, in addition to the flow of hot fluid and entrained fibers from the skirt, an air flow is also induced, the result is that the fibers are uniformly distributed over a considerably greater width. that, e.g. can be up to 3,141400 twice the width of the fiber veil obtainable by the prior art.
I henhold til en hensigtsmæssig udførelsesform for apparatet ifølge opfindelsen kan skørtet være således placeret i forhold til indgangen til fordeleren, at den fra skørtet udgående strøm af luftformigt medium og fibre inducerer en luftstrøm inden i fordeleren.According to a convenient embodiment of the apparatus according to the invention, the skirt may be positioned relative to the input to the distributor so that it induces an air flow within the distributor from the skirt.
Herved opnås induktionen af luft allerede ved indgangen til fordeleren, hvorved fordelingen af fibrene også indledes ved denne indgang.In this way, the induction of air is obtained already at the input of the distributor, whereby the distribution of the fibers is also initiated at this input.
Med henblik på en hensigtsmæssig spredning af fibrene som en vifte ved indgangen til fordeleren kan skørtets storflader ifølge opfindelsen have form som et trapez med grundlinien beliggende ved skørtets udgangsende.In order to expediently spread the fibers as a fan at the entrance to the distributor, the large surfaces of the skirt according to the invention may take the form of a trapezoid with the baseline located at the outlet end of the skirt.
I henhold til endnu en udførelsesform for opfindelsen kan apparatet have organer til indstilling af konvergensen mellem skørtets storflader. Med disse organer kan man justere tykkelsen af det lag fibre, der udgår fra tråddanneren, og dermed indvirke på tykkelsen af fiberlaget på transportbåndet.According to yet another embodiment of the invention, the apparatus may have means for adjusting the convergence of the major surfaces of the skirt. With these means, the thickness of the layer of fibers emanating from the filament can be adjusted, thereby affecting the thickness of the fiber layer on the conveyor belt.
Den ovenfor omtalte spredning af fibrene som en vifte ved udgangen fra skørtet kan bibeholdes og forbedres, når fiberfordelerens storflader ifølge opfindelsen har form som et trapez med grundlinien beliggende ved transportbåndet.The above-mentioned spreading of the fibers as a fan at the exit from the skirt can be maintained and improved when the large surfaces of the fiber distributor according to the invention take the form of a trapezoid with the baseline located at the conveyor belt.
Med henblik på yderligere at kunne finjustere spredningen og fordelingen af fibrene på transportbåndet kan apparatet ifølge opfindelsen have organer til indstilling af konvergensen mellem fiberfor-delerens storflader.In order to further fine-tune the spread and distribution of the fibers on the conveyor belt, the apparatus of the invention may have means for adjusting the convergence of the major surfaces of the fiber distributor.
I henhold til endnu en udførelsesform for apparatet ifølge opfindelsen kan fordeleren være opdelt i flere successive afsnit på en sådan måde, at der induceres eller stedvis indblæses luftstrømme mellem de enkelte afsnit. Herved er der skabt mulighed for yderligere tilførsel af gas eller luft langs fordeleren og dermed mulighed for at styre fiberspredningen.According to yet another embodiment of the apparatus according to the invention, the distributor may be divided into several successive sections in such a way as to induce or place air flows between the individual sections. This allows for further supply of gas or air along the distributor and thus the possibility of controlling the fiber spread.
Opfindelsen forklares nærmere i det følgende under henvisning til den skematiske tegning, hvor fig. 1 viser et perspektivisk billede af en udførelsesform for et apparat ifølge opfindelsen, fig 2 et snit gennem tråddanneren med dyse, skørt og justeringsorganer , fig. 3 et perspektivisk billede af den i fig. 2 viste tråddanner, fig. 4 et snit gennem den i fig. 1 viste fordeler i et plan,The invention is explained in more detail below with reference to the schematic drawing, in which fig. 1 is a perspective view of an embodiment of an apparatus according to the invention; FIG. 2 is a section through the filament with nozzle, skirt and adjusting means; 3 is a perspective view of the embodiment of FIG. 2; FIG. 4 is a sectional view of the one shown in FIG. 1 in a plane,
UUQOUUQO
4 der falder sammen med transportbåndets bevægelsesretning, fig. 5 en anden udførelsesform for apparatet ifølge opfindelsen, fig. 6 et snit gennem det i fig. 5 viste apparat i et plan, der falder sammen med transportbåndets bevægelsesretning, fig. 7 på.samme måde som i fig. 6 et snit gennem en variant ifølge opfindelsen, fig. 8 en yderligere udførelsesform for apparatet ifølge opfindelsen, og _ fig. 9 et snit gennem det i fig. 8 viste apparat i et plan, der falder sammen med transportbåndets bevægelsesretning.4 which coincides with the direction of movement of the conveyor belt; FIG. 5 shows another embodiment of the apparatus according to the invention; FIG. 6 is a sectional view of the embodiment of FIG. 5 in a plane which coincides with the direction of movement of the conveyor belt; FIG. 7 in the same way as in FIG. 6 is a section through a variant according to the invention; FIG. 8 shows a further embodiment of the apparatus according to the invention, and FIG. 9 is a sectional view of the embodiment of FIG. 8 in a plane coinciding with the direction of movement of the conveyor belt.
Fig. 1 viser i perspektiv den generelle opstilling af hoved-bestanddelene i et apparat ifølge opfindelsen, nemlig et skørt 4, der skal beskrives nærmere nedenfor under henvisning til fig. 2 og 3, en fiberfordeler 17 placeret under dette skørt 4 og et transportbånd 14 anbragt under fiberfordeleren 17.FIG. 1 is a perspective view of the general arrangement of the main components of an apparatus according to the invention, namely a skirt 4, to be described in more detail below with reference to FIG. 2 and 3, a fiber distributor 17 located below this skirt 4 and a conveyor belt 14 located below the fiber distributor 17.
I fig. 2 antydes ved 1 den nederste del af et kar, som indeholder smeltet glas. Under dette kar findes der en række dyseåbninger 3« Under denne række åbninger findes der et skørt 4, hvis Øvre åbning er beliggende over for åbningerne 3 og udmunder i et kammer 5, der får tilført gas under tryk. Skørtets udgangsspalte betegnes 12. Skørtet har trapezformede storflader, der konvergerer mod hinanden hen imod den store grundlinie.In FIG. 2 is indicated at 1 the lower part of a vessel containing molten glass. Under this vessel there are a number of nozzle openings 3 «Below this series of openings there is a skirt 4, the upper opening of which is opposite the openings 3 and opens into a chamber 5 which is supplied with pressurized gas. The skirt's exit slot is designated 12. The skirt has trapezoidal large surfaces that converge toward each other toward the large baseline.
Til kammeret 5 er fastgjort bæreorganer 6, hvori der kan skrues justeringsmøtrikker 10, som indvirker på skørtets flader 11.Mounting means 6 are attached to the chamber 5 in which adjusting nuts 10 can be screwed, which act on the surfaces 11 of the skirt.
Fig. 2 viser detaljeret, hvordan møtrikkerne 10 er udformede. Møtrikkerne samvirker mod gevindskårne tappe 7, der gennem ledforbindelser 8 er i drivindgreb med skørtets flader 11. Ved 9 betegnes de åbninger, gennem hvilke gassen i kammeret 5 indføres i skørtet.FIG. 2 shows in detail how the nuts 10 are formed. The nuts cooperate against threaded pins 7 which, through articulated joints 8, engage the surfaces of the skirt 11. At 9, the openings through which the gas in the chamber 5 is introduced into the skirt are denoted.
Fig. 3 viser et perspektivisk billede af den i fig. 2 viste enhed til tråddannelse. Ved indstilling af møtrikkerne kan man opnå en spalte af større eller mindre bredde, således at man får et fiberlag af større eller mindre tykkelse.FIG. 3 is a perspective view of the embodiment of FIG. 2 for thread forming. By adjusting the nuts, a slit of greater or lesser width can be obtained so as to obtain a fiber layer of greater or lesser thickness.
„ Som udførelseseksempel kan det angives, at vinklen mellem tråd- dannerens akseretning vinkelret på transportbåndet 14 og den ene eller den anden side af den trapezformede flade 11 er lig med ca.As an exemplary embodiment, it can be stated that the angle between the axis of the filament perpendicular to the conveyor belt 14 and one or the other side of the trapezoidal surface 11 is equal to approx.
15°, medens disse flader klemmes således, at afstanden mellem dem er 7 mm ved indgangen og 5,4 mm ved udgangen.15 ° while clamping these surfaces such that the distance between them is 7 mm at the entrance and 5.4 mm at the exit.
Ved den i fig. 1 og 5 viste udførelsesform er fordeleren 17 5 uuoo anbragt umiddelbart under skørtet 4. Fordeleren har form som et aflangt skørt, hvis to plane storflader 18 og 19 er trapezformede.In the embodiment shown in FIG. 1 and 5, the distributor 17 5 uuoo is located immediately below the skirt 4. The distributor is in the form of an elongated skirt whose two planar large faces 18 and 19 are trapezoidal.
I den viste udformning konvergerer de to storflader mod hinanden over hele deres højde, jf. fig. 1, men de kan også konvergere over blot en del af dens længde og i nærheden af udgangssiden. Til regulering af gennemstrømningsarealet for den fiberbærende strøm findes der møtrikker 21 i drivindgreb med skruer 22 til ændring af positionen af fordeleren 17's storflader, som er fastgjort til bærestykker 23.In the embodiment shown, the two large surfaces converge towards each other over their entire height, cf. 1, but they can also converge over only a portion of its length and near the exit side. For regulating the flow area of the fiber-bearing stream, nuts 21 are provided in drive engagement with screws 22 for changing the position of the large faces of the distributor 17, which are attached to support pieces 23.
Det fiberlag, der passerer gennem fordeleren 17, afsættes på transportbåndet 14, som bevæger sig jævnt i en retning vinkelret på tråddannerens række af åbninger. Inden i fordeleren og mellem udgangen fra skørtet 4 og indgangen 25 til fordeleren induceres der en luftstrøm.The fiber layer passing through the distributor 17 is deposited on the conveyor belt 14, which moves smoothly in a direction perpendicular to the series of openings of the filament. An air flow is induced within the distributor and between the output of the skirt 4 and the input 25 of the distributor.
I overensstemmelse med opfindelsen er det den kombinerede virkning af variationen af fordeleren 17's tværsnitsareal og dannelsen af yderligere inducerede strømme, som tillader at regulere ensartetheden, størrelsen og formindskelsen af hastigheden af den strøm, der bringer fibrene med sig. Disse strømme indføres på en sådan måde, at strømtætheden pr. arealenhed i det væsentlige er konstant over hele . tværsnittet gennem fordeleren.In accordance with the invention, it is the combined effect of the variation of the cross-sectional area of the distributor 17 and the formation of additional induced currents that allows to regulate the uniformity, magnitude and decrease of the velocity of the current that brings the fibers. These currents are introduced in such a way that the current density per area unit is essentially constant throughout. the cross section through the distributor.
Gennemstrømningsarealet ændres ved hjælp af justeringsorganerne 21-23 på en sådan måde, at det inducerede luftvolumen er 8-10 gange gasvolumenet fra skørtet 4. Ligeledes justeres indgattgsarea-let 25 til og udgangsarealet 20 (fig. 4) fra fordeleren på en sådan måde, at arealet på udgangssiden 20 tilnærmelsesvis er lig med og i hvert fald højst dobbelt så stort som indgangsarealet 25.The flow area is changed by means of the adjusting means 21-23 in such a way that the induced air volume is 8-10 times the gas volume from the skirt 4. Likewise, the input area 25 is adjusted to and the exit area 20 (Fig. 4) from the distributor in such a way. that the area on the exit side 20 is approximately equal to and at least twice the size of the entrance area 25.
Hvad angår den homogene fordeling af fibrene på transportbåndet har man konstateret, at hastigheden af den fiberbærende gasstrøm ved fordelerens indgang 25 hensigtsmæssigt bør være ån til fem gange større end hastigheden ved udgangen. Eksempelvis kan man have følgende værdier:With regard to the homogeneous distribution of the fibers on the conveyor belt, it has been found that the velocity of the fiber-bearing gas stream at the distributor input 25 should conveniently be five to five times greater than the velocity at the output. For example, you can have the following values:
Indgangshastighed ved 25 75 m/sek.Input speed at 25 75 m / sec.
Udgangshastighed ved 20 25 m/sek.Output speed at 20 25 m / sec.
Transportbåndets hastighed 15 m/sek.Conveyor speed 15 m / sec.
De i fig. 5-9 viste udførelsesformer har til formål at sikre, efterhånden som fordelerens tværsnitsareal vokser, en tilførsel af yderligere strømme, enten i form af en induceret luftstrøm eller i form af luft eller damp, som indføres ved hjælp af blæseorganer i UUQØ 6 overensstemmelse med volumenforøgelsen i fordeleren. Man kan på denne måde over hele højden af fordeleren opnå en konstant gasmængde pr. arealenhed for hvert tværsnitsplan, hvorved der etableres en hvirvelfri strømning.The 5-9 are intended to ensure, as the cross-sectional area of the distributor grows, a supply of additional currents, either in the form of an induced air flow or in the form of air or steam introduced by blowing means in the UUQØ 6 in accordance with the volume increase in the distributor. In this way, one can obtain a constant volume of gas over the entire height of the distributor. area unit for each cross-sectional plane, thereby establishing an invertebrate flow.
Det fremgår af fig. 5-7, at fordeleren i hovedsagen er udformet som vist i fig. 1 og 4, men er udstyret med åbninger fortrinsvis med spjæld 27, der fortrinsvis kan reguleres til indsugning af induceret luftstrøm. I den viste udførelsesform er spjældene 27 beliggende i fordelerens storflader. Desuden findes der blæseorganer 32, 33, som er således anbragt, at et tilskud af luft eller gas kan indføres i fordeleren. Ved den i fig. 5-7 viste udførelsesform er en blæser 32 anbragt ved en øvre åbning af fordeleren, medens en anden blæser 33 er anbragt over for et af spjældene 27. Naturligvis vil antallet, beliggenheden og fordelingen af disse blæseorganer i hvert enkelt tilfælde bestemmes til opnåelse af de ovenfor omtalte reguleringsforhold.It can be seen from FIG. 5-7, that the distributor is substantially shaped as shown in FIG. 1 and 4, but is provided with apertures preferably with damper 27, which can preferably be controlled for suction of induced air flow. In the embodiment shown, the dampers 27 are located in the large surfaces of the distributor. In addition, there are blowing means 32, 33 which are arranged so that a supplement of air or gas can be introduced into the distributor. In the embodiment shown in FIG. 5-7, a blower 32 is arranged at an upper opening of the distributor, while another blower 33 is arranged against one of the dampers 27. Of course, in each case the number, location and distribution of these blowing means will be determined to obtain regulation conditions mentioned above.
Det bemærkes for den i fig. 6 viste udførelsesform, at fordelerens storflader kun konvergerer mod hinanden ved det parti, der betegnes 34, medens disse storflader ved den i fig. 7 viste udførelsesform konvergerer mod hinanden over hele deres højde.It is noted for the embodiment shown in FIG. 6 shows that the large faces of the distributor converge towards each other only at the portion designated 34, while these large faces at the portion shown in FIG. 7, converge towards each other throughout their height.
Ved den i fig. 8 og 9 viste udførelsesform består fordeleren af fleroven på hinanden anbragte elementer, såsom 28, 29, mellem hvilke der induceres luftstrømme. Disse elementer har to plane storflader, der konvergerer mod hinanden over i det mindste en del af deres højde i det område, der vender mod deres udgangsside. I det i fig. 9 viste eksempel er disse storflader konvergerende over hele deres højde.In the embodiment shown in FIG. 8 and 9, the distributor consists of multi-oven elements, such as 28, 29, between which air flows are induced. These elements have two planar large faces converging towards each other over at least a portion of their height in the area facing their exit side. In the embodiment of FIG. 9, these large surfaces converge over their entire height.
Ifølge opfindelsen er udgangsarealet 38 for et element i fordeleren mindre end indgangsarealet 39 for det næste element.According to the invention, the output area 38 for one element of the distributor is smaller than the input area 39 for the next element.
Desuden er indgangsarealet 39 for hvert element tilnærmelsesvis lig med dets udgangsareal 40.In addition, the input area 39 for each element is approximately equal to its output area 40.
Fig. 8 og 9 viser blæseorganer 35 og 36, der er således placeret, at der på samme måde som tidligere forklaret, indføres luft- eller gasstrømme ind i fordeleren. Blæseren 35 er anbragt ved indgangen til fordeleren og blæseren 36 er anbragt mellem to successive elementer. Der kunne anvendes yderligere blæseorganer som blæseren 36.FIG. Figures 8 and 9 show blowing means 35 and 36 so arranged that air or gas streams are introduced into the distributor in the same manner as previously explained. The fan 35 is disposed at the entrance to the distributor and the fan 36 is disposed between two successive elements. Additional fan means such as fan 36 could be used.
Det beskrevne apparat har blandt anden den fordel, at man undgår fibergrupperinger og opnår en god fordeling af fibrene på transportbåndet, uden at der forekommer sammenklumpning af fibrene.Among other things, the apparatus described has the advantage of avoiding fiber groupings and obtaining a good distribution of the fibers on the conveyor belt, without the clumping of the fibers.
Claims (6)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7015678 | 1970-04-29 | ||
| FR7015678A FR2085525B1 (en) | 1970-04-29 | 1970-04-29 | |
| FR7033876 | 1970-09-18 | ||
| FR7033876A FR2108162B2 (en) | 1970-04-29 | 1970-09-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK141400B true DK141400B (en) | 1980-03-10 |
| DK141400C DK141400C (en) | 1980-09-01 |
Family
ID=26215707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK201371AA DK141400B (en) | 1970-04-29 | 1971-04-27 | Apparatus for making a veil or mat of fibers of thermoplastic material. |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US3787195A (en) |
| JP (1) | JPS5145704B1 (en) |
| BE (1) | BE766432A (en) |
| BR (1) | BR7102534D0 (en) |
| CA (1) | CA931756A (en) |
| CH (1) | CH548472A (en) |
| CS (1) | CS164887B2 (en) |
| DK (1) | DK141400B (en) |
| ES (1) | ES390691A1 (en) |
| FI (1) | FI52967C (en) |
| FR (2) | FR2085525B1 (en) |
| GB (2) | GB1359001A (en) |
| HU (1) | HU166151B (en) |
| NL (1) | NL166290C (en) |
| NO (1) | NO129342B (en) |
| RO (1) | RO63891A (en) |
| SE (1) | SE370384B (en) |
| TR (1) | TR18705A (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4001357A (en) * | 1972-08-02 | 1977-01-04 | Alfred Walz | Process for the manufacture of fibers from fusible materials |
| US4058385A (en) * | 1974-06-10 | 1977-11-15 | Owens-Corning Fiberglas Corporation | Method for transporting glass fibers |
| US4168959A (en) * | 1977-02-16 | 1979-09-25 | Johns-Manville Corporation | Method and apparatus for distribution of glass fibers |
| DE3016114A1 (en) * | 1980-04-25 | 1981-10-29 | Rheinhold & Mahla Gmbh, 6800 Mannheim | METHOD AND DEVICE FOR PRODUCING MINERAL WOOL FIBERS |
| FR2519036A1 (en) * | 1981-12-28 | 1983-07-01 | Saint Gobain Isover | IMPROVEMENTS IN FIBER SAILS TRAINING TECHNIQUES |
| US4414010A (en) * | 1982-06-21 | 1983-11-08 | Manville Service Corporation | Apparatus for attenuating mineral fibers |
| US4489462A (en) * | 1983-03-17 | 1984-12-25 | E. I. Du Pont De Nemours And Company | Air flow control apparatus for a fiber air-lay machine |
| CA1340751C (en) * | 1984-07-03 | 1999-09-21 | William T. Fletcher | Apparatus for producing reoriented glass fibre material |
| DE3503818C1 (en) * | 1985-02-05 | 1986-04-30 | Reifenhäuser GmbH & Co Maschinenfabrik, 5210 Troisdorf | Device for stretching monofilament bundles |
| DE3701531A1 (en) * | 1987-01-21 | 1988-08-04 | Reifenhaeuser Masch | METHOD AND SYSTEM FOR PRODUCING A SPINNED FLEECE |
| DE3738326A1 (en) * | 1987-04-25 | 1988-11-10 | Reifenhaeuser Masch | Spun-bonded web apparatus for the production of a spun-bonded web from synthetic endless filament |
| DE3713862A1 (en) * | 1987-04-25 | 1988-11-10 | Reifenhaeuser Masch | METHOD AND SPINNED FLEECE SYSTEM FOR PRODUCING A SPINNED FLEECE FROM SYNTHETIC CONTINUOUS FILAMENT |
| GB2203764B (en) * | 1987-04-25 | 1991-02-13 | Reifenhaeuser Masch | Production of spun fleece from continuous synthetic filaments |
| US4889546A (en) * | 1988-05-25 | 1989-12-26 | Denniston Donald W | Method and apparatus for forming fibers from thermoplastic materials |
| US4861362A (en) * | 1988-05-25 | 1989-08-29 | Denniston Donald W | Method and apparatus for forming fibers from thermoplastic materials |
| DE4141659A1 (en) * | 1991-12-17 | 1993-06-24 | Gruenzweig & Hartmann | METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF MINERAL WOOL FLEECE |
| US5591335A (en) * | 1995-05-02 | 1997-01-07 | Memtec America Corporation | Filter cartridges having nonwoven melt blown filtration media with integral co-located support and filtration |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2230270A (en) * | 1936-12-24 | 1941-02-04 | Owens Corning Fiberglass Corp | Apparatus for forming webs of fibrous material |
| US2565941A (en) * | 1946-06-17 | 1951-08-28 | Reconstruction Finance Corp | Method and apparatus for producing laminated materials |
| BE482143A (en) * | 1947-04-28 | |||
| BE508730A (en) * | 1951-01-26 | |||
| US2881471A (en) * | 1954-12-28 | 1959-04-14 | Owens Corning Fiberglass Corp | Apparatus for forming and treating fibers |
| NL264233A (en) * | 1960-05-05 | |||
| NL283801A (en) * | 1961-10-17 | 1900-01-01 | ||
| US3302237A (en) * | 1965-01-15 | 1967-02-07 | Du Pont | Forwarding jet |
| US3334161A (en) * | 1965-02-10 | 1967-08-01 | Du Pont | Filament forwarding jet device |
| US3532479A (en) * | 1969-07-15 | 1970-10-06 | Owens Corning Fiberglass Corp | Apparatus for producing glass fibers |
-
1970
- 1970-04-29 FR FR7015678A patent/FR2085525B1/fr not_active Expired
- 1970-09-18 FR FR7033876A patent/FR2108162B2/fr not_active Expired
-
1971
- 1971-04-02 FI FI931/71A patent/FI52967C/fi active
- 1971-04-03 RO RO7166469A patent/RO63891A/en unknown
- 1971-04-16 CA CA110597A patent/CA931756A/en not_active Expired
- 1971-04-19 GB GB2423571*A patent/GB1359001A/en not_active Expired
- 1971-04-19 GB GB68974A patent/GB1359003A/en not_active Expired
- 1971-04-20 TR TR18705A patent/TR18705A/en unknown
- 1971-04-21 US US00136132A patent/US3787195A/en not_active Expired - Lifetime
- 1971-04-22 CS CS2922A patent/CS164887B2/cs unknown
- 1971-04-22 NL NL7105438.A patent/NL166290C/en not_active IP Right Cessation
- 1971-04-27 DK DK201371AA patent/DK141400B/en not_active IP Right Cessation
- 1971-04-28 NO NO01580/71A patent/NO129342B/no unknown
- 1971-04-28 BE BE766432A patent/BE766432A/en not_active IP Right Cessation
- 1971-04-28 CH CH622771A patent/CH548472A/en not_active IP Right Cessation
- 1971-04-28 BR BR2534/71A patent/BR7102534D0/en unknown
- 1971-04-28 SE SE7105547A patent/SE370384B/xx unknown
- 1971-04-28 ES ES390691A patent/ES390691A1/en not_active Expired
- 1971-04-28 JP JP46028463A patent/JPS5145704B1/ja active Pending
- 1971-04-29 HU HUSA2195A patent/HU166151B/hu unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK141400C (en) | 1980-09-01 |
| TR18705A (en) | 1977-08-10 |
| RO63891A (en) | 1979-05-15 |
| NL7105438A (en) | 1971-11-02 |
| NL166290C (en) | 1981-07-15 |
| FR2085525B1 (en) | 1975-01-10 |
| BR7102534D0 (en) | 1973-03-29 |
| DE2118081B2 (en) | 1975-11-27 |
| FR2108162A2 (en) | 1972-05-19 |
| NL166290B (en) | 1981-02-16 |
| HU166151B (en) | 1975-01-28 |
| FR2108162B2 (en) | 1975-01-10 |
| JPS5145704B1 (en) | 1976-12-04 |
| GB1359003A (en) | 1974-07-03 |
| CS164887B2 (en) | 1975-11-28 |
| GB1359001A (en) | 1974-07-03 |
| BE766432A (en) | 1971-10-28 |
| US3787195A (en) | 1974-01-22 |
| FR2085525A1 (en) | 1971-12-24 |
| DE2118081A1 (en) | 1971-11-11 |
| FI52967B (en) | 1977-09-30 |
| CH548472A (en) | 1974-04-30 |
| SE370384B (en) | 1974-10-14 |
| ES390691A1 (en) | 1973-07-01 |
| FI52967C (en) | 1978-01-10 |
| CA931756A (en) | 1973-08-14 |
| NO129342B (en) | 1974-04-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |