HU216949B - Process and apparatus for dynamic-flow production of ductile, highly tear-resistant fiber mats - Google Patents

Process and apparatus for dynamic-flow production of ductile, highly tear-resistant fiber mats Download PDF

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Publication number
HU216949B
HU216949B HU9400763A HU9400763A HU216949B HU 216949 B HU216949 B HU 216949B HU 9400763 A HU9400763 A HU 9400763A HU 9400763 A HU9400763 A HU 9400763A HU 216949 B HU216949 B HU 216949B
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fiber
fibers
drum
flow
rollers
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HU9400763A
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Hungarian (hu)
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HUT68090A (en
HU9400763D0 (en
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Wilhelm Bierbaumer
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Kühnsdorfer Holzfasermattenwerk Pacht- und Betriebsgesellschaft m.b.H.
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Publication of HU9400763D0 publication Critical patent/HU9400763D0/en
Publication of HUT68090A publication Critical patent/HUT68090A/en
Publication of HU216949B publication Critical patent/HU216949B/en

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    • 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
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/488—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with bonding agents
    • 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
    • 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
    • D04H1/425—Cellulose series
    • 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
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • 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
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/485—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with weld-bonding
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/49—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • 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
    • D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/645—Impregnation followed by a solidification process
    • 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
    • D04H18/00—Needling machines
    • D04H18/02—Needling machines with needles

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)
  • Inorganic Fibers (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Laminated Bodies (AREA)
  • Paper (AREA)

Abstract

Disclosed is a process for dynamic-flow production of ductile, highly tear-resistant fiber mats from a fibrous web consisting of cellulose fibers impregnated with a binder and thermoplastic fibers and/or natural, vegetable fibers, where the apparatus, arranged in the flow direction of the material, consists of a web forming machine (1), a pair of press rollers (3, 4), a pair of draw-in rollers (5), a cylinder (6), an air channel (10) which is fed by ventilators (12) and fitted with one or more control members (25) in the form of one or more adjustable flaps, a venturi rod (7), a diffuser (13), a mat forming roll (15), feed rollers (16, 17), a surface weight measuring device (19), a needle machine (20), a flattening device (21), a cutting machine (22) and a stacking device (24). Disclosed also is the use of a ductile, highly tear-resistant fiber mat produced by the process as per the invention, where one or more of the fiber mats (23, 23') is used for producing form pieces by pressing at elevated pressure and temperature.

Description

A berendezés lényege, hogy az anyag áramlásának irányában az alábbi sorrendnek megfelelően, egymás után elhelyezett szálbundalerakó gépből (1), nyomóhengerpárból (3, 4), behúzóhengerpárból (5), dobból (6), ventilátorok (12) által táplált légcsatomából (10) áll, amelyben egy vagy több szabályozóelem van elhelyezve, egy vagy több állítócsappantyú (25), vagy a légáram felé homorúan ívelt szabályozóív (26) alakjában, továbbá egy, tengelye körül elforgathatóan állítható Venturirúdból (7, 7’) áll, amelynek szélességben változtatható bordái (8, 8’) vannak, továbbá diffuzorból (13), szálbundalerakó dobból (15), továbbítóhengerekből (16, 17), súlymérő berendezésből (19), tűzőgépből (20), présből (21), vágógépből (22) és lerakószerkezetből (24) áll.The apparatus is characterized in that in the flow direction of the material, the air flow (10) fed successively from a fiber bundling machine (1), a press roll pair (3, 4), a feed roll pair (5), a drum (6), and fans (12) comprising one or more control elements, in the form of one or more control flaps (25) or a control arc (26) concave to the air stream, and comprising a venturi (7, 7 ') that can be pivotally rotated about its axis; (8, 8 '), further comprising a diffuser (13), a fiber bundle drum (15), transfer rollers (16, 17), a weighing device (19), a stapler (20), a press (21), a cutting machine (22) and a stacker (22). 24) consists of.

A találmány tárgya eljárás nagy szakítószilárdságú, alakítható szálpaplanok áramlásdinamikai úton történő előállítására szálbundából, amely kötőanyaggal impregnált cellulózszálakból és termoplasztikus szálakból, és/vagy növényi eredetű természetes szálakból áll, amikor is az elemi szálakból álló száltömeget egy dobban szálakra bontjuk, és ebből a keverékből ezt követően egy szálbundát képezünk, amelyet egy tűzőgépben szálpaplanná rögzítünk. A találmány vonatkozik továbbá az eljárás foganatosítására szolgáló berendezésre is.The present invention relates to a process for the production of high tensile strength, convertible fiber webs by flow dynamically comprising a binder-impregnated cellulosic and thermoplastic fibers and / or natural fibers of plant origin, wherein forming a fiber blanket which is fixed to a fiber web in a stapler. The invention also relates to an apparatus for carrying out the process.

A bevezetőben ismertetett eljárás a 387.798 számú AT szabadalmi leírásban található meg. Eszerint az elemi szálakból álló szálbundákat dobban összekeverik, és ebből a keverékből szálbundalerakó dobon további szálbundákat képeznek. Azt tapasztaltuk, hogy a rostos száltömeg szállítása a dobból a szálbundalerakó dobhoz nem célzottan zajlik le, aminek következtében a szálbundalerakó dobon a szálbunda egyenetlen lesz, és a képződött szálbunda szélessége mentén a felületi súlyelosztás is egyenlőtlen lesz. Továbbá az is felismerhető volt, hogy a műanyaggal impregnált farostok, nagyobb súlyuk következtében, többnyire a lefektetett bunda alsó oldalán maradnak, míg a termoplasztikus és/vagy nem impregnált, növényi eredetű természetes szálak a lefektetett bunda felső rétegében helyezkednek el. Ez az eltérő réteges felépítés problémákat jelent a szálpaplanok továbbfeldolgozásánál, mivel azok alsó oldala a nagy kötőanyag-tartalom miatt ragadós lesz, míg a felső oldalon alig van ragasztó.The process disclosed in the introduction is disclosed in AT-A-387798. According to this, the fiber coats of the filaments are mixed in a drum, and from this blend, the fiber coats are formed into further fiber coats. It has been found that the transport of the fibrous fiber mass from the drum to the fiber bundle drum is not carried out in a targeted manner, resulting in uneven fiber bundle on the fiber bundle drum and uneven surface weight distribution along the width of the fiber bundle formed. Furthermore, it has been recognized that plastic-impregnated wood fibers, due to their greater weight, tend to remain on the underside of the layered fur while the thermoplastic and / or non-impregnated, natural fibers of plant origin are located in the upper layer of the laid fur. This divergent layered structure presents problems in the further processing of the fiber webs since their lower side becomes tacky due to the high binder content and the upper side has little adhesive.

A találmány feladata tehát az, hogy nagy szakítószilárdságú, alakítható szálpaplant hozzon létre, amelynél annak teljes szélességében egyenletes súlyeloszlás van, és amelynek rétegfelépítése olyan, hogy szabályosan átkevert impregnált és nem impregnált szálakból áll.It is therefore an object of the present invention to provide a high tensile deformable fiber web having a uniform weight distribution over its entire width and having a layer structure consisting of impregnated and non-impregnated fibers which are regularly mixed.

Ezt a feladatot a találmány értelmében azáltal oldjuk meg, hogy a dobban végbemenő szálakra bontással létrehozott szálakat légárammal átkeveqük, amely légáram áramlási profilját légcsatomában elhelyezett szabályozóelemekkel, valamint egy áramlásirányban utánaiktatott Venturi-rúddal beállítjuk, és ily módon szabályos felületi súlyeloszlással bíró szálbundát hozunk létre, amelyet tűzés után egy préshez vezetünk, és így nagy szakítószilárdságú, alakítható szálpaplant hozunk létre.According to the invention, this object is solved by mixing the fibers formed in the drum by decomposing fibers with an air stream, the air flow profile of which is adjusted by means of regulating elements located in the air channel and a downstream venturi rod, thereby creating a regular surface weight distribution. after stapling, it is led to a press to form a high tensile deformable fiber web.

Előnyösen szabályozóelemként több, a légcsatoma szélessége mentén elosztott állítócsappantyút, vagy több, a légáram felé homorúan ívelt és ívelésében változtatható szabályozóívet alkalmazunk.Preferably, a plurality of adjusting dampers or a plurality of control curves that are concave to the air stream and adjustable in curvature are used as control elements.

A találmány tárgya továbbá egy berendezés is nagy szilárdságú, alakítható szálpaplanok áramlásdinamikai úton való előállítására szálbundából, amely berendezés az anyag áramlásának irányában az alábbi sorrendnek megfelelően, egymás után elhelyezett szálbundalerakó gépből, nyomóhengerpárból, behúzóhengerpárból, dobból, ventilátorok által táplált légcsatomából áll, amelyben egy vagy több szabályozóelem van elhelyezve, továbbá egy, tengelye körül elforgathatóan állítható Venturi-rúdból áll, amelynek szélességben változtatható bordái vannak, továbbá diffuzorból, szálbundalerakó dobból, továbbítóhengerekből, súlymérő berendezésből, tűzőgépből, présből, vágógépből és lerakószerkezetből áll.The present invention also relates to a device for the production of high strength, deformable fiber webs in a flow dynamic manner from a fiber blanket, which is fed in a sequence of material flow from a successive fiber blanket, a press roll, a draw roll, a drum, a fan, a plurality of adjusting elements and a venturi rod which is pivotally adjustable about its axis and has variable width ribs, a diffuser, a fiber bobbin drop drum, transfer rollers, a weighing machine, a stapler, a press, a cutting machine and a loading device.

A szabályozóelemek lehetnek vagy állítócsappantyúk, vagy a légcsatomában elhelyezett egy vagy több, a levegőáram felé homorúan ívelt alakú és ívelésében állítható szabályozóív.The control elements can be either adjusting flaps or one or more control arcs in the air passage which are concave to the air stream and adjustable in curvature.

A találmányt részletesebben a rajzok alapján ismertetjük, amelyek a találmány szerinti eljárás foganatosítására való berendezés példakénti kiviteli alakját tüntetik fel.DETAILED DESCRIPTION OF THE INVENTION The invention will be described in more detail with reference to the drawings, which illustrate an exemplary embodiment of an apparatus for carrying out the process of the invention.

Az 1. ábra a berendezés folyamatábrájának elvi vázlatát mutatja oldalnézetben.Figure 1 is a schematic side view of a flow chart of the apparatus.

A 2. ábra az 1. ábra szerinti berendezés egy más változata folyamatábrájának elvi vázlatát mutatja oldalnézetben.Figure 2 is a side elevational view of a flow chart of another embodiment of the apparatus of Figure 1.

A 3. ábra az 1. ábra szerinti berendezés szabályozóelemének egy részletét ábrázolja perspektivikusan.Figure 3 is a perspective view of a portion of the control element of the apparatus of Figure 1.

A 4. ábra a 2. ábrán ábrázolt berendezés szabályozóelemének egy részletét ábrázolja perspektivikusan.Figure 4 is a perspective view of a portion of the control element of the apparatus of Figure 2.

Egy 1,1’ szálbundalerakó gépnél kötőanyaggal, például duroplasttal, termoplasttal vagy elasztomerrel, vagy ezek keverékével impregnált és ezt követően szárított cellulózszálakból és termoplasztikus szálakból, például poliészter-, poliolefin-, poliamid-, poliakril-, EVAés/vagy természetes szálakból, mint például lenből, kenderből és cellulózszálakból 2, 2’ száltömeget képezünk. Ezt azután a 3, 3’; 4, 4’ nyomóhengerpárokon keresztül tömörítjük, és 5, 5’ behúzóhengerpárral 6, 6’ dobhoz vezetjük, amelynek felülete tűkkel vagy furészfogakkal van ellátva, és így a 2, 2’ száltömeget szálakra bontja. Több, ugyanazon tengellyel hajtott 12, 12’ ventilátor segítségével a 10, 10’ légcsatomában légáramlást hozunk létre, amelynek sebességét a 10,10’ légcsatoma szélessége mentén elosztott szabályozóelemekkel (lásd 1. és 2. ábrák) beállíthatjuk. Az 1. ábra szerint a szabályozóelemek 25 állítócsappantyúk, amelyeket all, 11’ állítószerkezetekkel lehet állítani. A 2. ábra szerinti 26 szabályo2In a 1,1 'fiber bundling machine, impregnated with a binder such as duroplast, thermoplast or elastomer or a mixture thereof, and subsequently dried cellulose fibers and thermoplastic fibers such as polyester, polyolefin, polyamide, polyacrylic, EVA and / or natural fibers. flax, hemp and cellulose fibers form a fiber mass of 2, 2 '. This is then illustrated by 3, 3 '; It is compacted through pairs of press rolls 4, 4 'and fed to a drum 6, 6' with a pair of retracting rolls 5, 5 'having a surface having needles or saw teeth, thereby disintegrating the fiber mass 2, 2' into fibers. By means of a plurality of fans 12, 12 'driven by the same shaft, an air flow is created in the air channel 10, 10', the speed of which can be adjusted by control elements distributed over the width of the air channel 10,10 '(see Figures 1 and 2). According to Fig. 1, the control elements are adjusting flaps 25 that can be adjusted by means of adjusting mechanisms all 11 '. The rule 26 of FIG

HU 216 949 Β zók a levegőáram felé homorúan meg vannak hajlítva, aminek következtében azok ívelése változtatható.EN 216 949 Β bends are concave to the air flow, which makes them curved.

Az áramlási sebességtől függ azonkívül a szálak átkeverése a levegőáramban is. Ezt az átkeverést egy, a tengelye körül 30°-ban elfordítható 7, 7’ Venturi-rúd segítségével lehet optimalizálni, amely 7, 7’ Venturirúd szélességében állítható 8, 8’ bordákkal van ellátva. A 8, 8’ bordák közötti 9, 9’ résekben (lásd 3. és 4. ábrák), a rések állása és szélessége szerint a levegőszál keverék áramlási sebessége megnő, ami által a 14, 14’ szálak járulékos átkeverése az utána kapcsolt 13, 13’ diffüzorban bekövetkezik. Továbbá egy ilyen változtatható áramlási sebesség lapátolóhatást hoz létre, amely a 14, 14’ szálak szabályos szálbundában történő lefektetését a 15, 15’ szálbundalerakó dobra lehetővé teszi. Az ily módon újonnan képezett 18, 18’ szálbunda a 16, 16’ és 17, 17’ továbbítóhengereken keresztül a 19, 19’ súlymérő berendezésbe kerül. A mérési adatok szabályosabb felületi súlyeloszlást mutatnak, mint azok a mérési adatok, amelyeket a szokásos mérési eljárásokkal lehet kapni. Ha azonban a felületi súlyeloszlás még így sem lenne kielégítő, akkor azt az áramlási sebességek változtatásával, a 25 állítócsappantyú, illetve 26 szabályozóív állításával változtatni lehet. Ezenkívül a 7, 7’ Venturi-rúd állításával további lehetőség van arra, hogy az áramlási viszonyokat optimalizáljuk.The flow rate also depends on the mixing of the fibers in the air stream. This mixing can be optimized by means of a venturi rod 7, 7 'which is pivotable by 30 ° about its axis and is provided with ribs 8, 8' which are adjustable in width by 7, 7 '. In the slots 9, 9 'between the ribs 8, 8' (see Figures 3 and 4), the flow rate of the air fiber mixture increases with the position and width of the slots, thereby causing additional mixing of the fibers 14, 14 'thereafter. 13 'diffuser. Furthermore, such a variable flow rate creates a blade effect which allows the fibers 14, 14 'to be laid in a regular fiber coat on the fiber bed deposition drum 15, 15'. The newly formed fiber blanket 18, 18 'is fed into the weighing machine 19, 19' via the transfer rollers 16, 16 'and 17, 17'. The measurement data shows a more regular surface weight distribution than the measurement data obtained by standard measurement procedures. However, even if the surface weight distribution is still unsatisfactory, it can be varied by changing the flow rates, adjusting the adjusting flap 25 and the regulating arc 26. In addition, by adjusting the venturi rod 7, 7 ', it is possible to further optimize the flow conditions.

Az ezt követő 20, 20’ tűzőgépen a 18, 18’ szálbundát további 27, 27’ szálbundával, amely például poliészter-, poliamid-, üvegszálakból vagy jutából áll, összetűzzük, és így kielégítően alakítható 28, 28’ szálpaplant képezünk. Annak érdekében, hogy ennek a 28, 28’ szálpaplannak jobb alakíthatóságot biztosítsunk az alakítóprésekben történő továbbfeldolgozásnál, a 28, 28’ szálpaplant 21, 21’ présen, amely például kalander vagy szalagprés lehet, vezetjük át. A kalanderhengerek között a 28, 28’ szálpaplant 25-150 °C hőmérsékleten és 550 kp/cm2 fajlagos nyomáson elótömörítjük, amikor is a műgyantával impregnált farostok még szorosabban kötődnek az idegen rostokhoz. Ezáltal a szálpaplan a továbbmegmunkálásnál, például alakra sajtolásnál, nagyobb húzóerőket is fel tud venni, és ezért kevésbé hajlamos repedések képződésére.In the subsequent stapler 20, 20 ', the fiber blanket 18, 18' is stitched with an additional fiber blanket 27, 27 ', such as polyester, polyamide, glass fiber or jute, to form a sufficiently deformable fiber web 28, 28'. In order to give this fiber web 28, 28 'a better formability for further processing in the forming presses, the web 28, 28' is passed through a press 21, 21 'which may be, for example, a calender or a belt press. Between the calendering rolls, the fiber web 28, 28 'is pre-compacted at 25-150 ° C and a specific pressure of 550 kp / cm 2 , whereby the resin impregnated wood fibers bind even more closely to the foreign fibers. This allows the fiber web to absorb higher tensile forces for further processing, such as molding, and is therefore less prone to cracking.

Végül az előtömörített 21, 21’ szálpaplanokat a 22, 22’ vágógépen való áthaladás után kész 23, 23’ szálpaplanként a 24,24’ lerakószerkezetre rakjuk le.Finally, after passing through the cutting machine 22, 22 ', the pre-compacted fiber webs 21, 21' are deposited on the stack 24,24 'as finished webs 23, 23'.

A találmány szerint előállított szálpaplanokat előnyösen lehet formarészek előállításához felhasználni, nagy nyomáson és nagy hőmérsékleten való sajtolással.The fiber webs of the present invention can advantageously be used to produce mold parts by high pressure and high temperature extrusion.

Claims (6)

SZABADALMI IGÉNYPONTOKPATENT CLAIMS 1. Eljárás nagy szakítószilárdságú, alakítható szálpaplanok áramlásdinamikai úton való előállítására szálbundából, amely kötőanyaggal impregnált cellulózszálakból és termoplasztikus szálakból, és/vagy növényi eredetű természetes szálakból áll, és amelynél a száltömeget dobban szálakra bontjuk, és ebből a keverékből ezt követően egy szálbundát képezünk, amelyet tűzőgépben szálpaplanná rögzítünk, azzal jellemezve, hogy a dobban (6, 6’) végbemenő szálakra bontással létrehozott szálakat (14, 14’) légárammal átkeverjük, amely légáram áramlási profilját légcsatomában (10,10’) elhelyezett szabályozóelemekkel, valamint egy, áramlásirányban utánaiktatott Venturi-rúddal (7, 7’) beállítjuk, és ily módon szabályos felületi súlyeloszlással bíró szálbundát (18, 18’) hozunk létre, amelyet tűzés után egy préshez (21, 21’) vezetünk, és így nagy szakítószilárdságú, alakítható szálpaplant (23,23’) hozunk létre.A process for the production of high-tensile, deformable fiber webs by flow dynamically comprising a binder-impregnated cellulosic fiber and thermoplastic fibers and / or natural fibers of vegetable origin, wherein the fiber mass is disintegrated into a drum and subsequently in a stapler is fixed to a fiber web, characterized in that the fibers (14, 14 ') formed by disintegration in the drum (6, 6') are mixed with an air stream, the air flow profile of which is arranged in a duct (10,10 '); with a rod (7, 7 ') to form a fiber coat (18, 18') having a regular surface weight distribution, which after stitching is fed to a press (21, 21 ') to provide a high tensile strength lapple (23,23 ') is created. 2. Az 1. igénypont szerinti eljárás, azzal jellemezve, hogy szabályozóelemként több, a légcsatoma szélessége mentén elosztott állítócsappantyút (25) alkalmazunk.Method according to claim 1, characterized in that the control element is a plurality of adjusting flaps (25) distributed along the width of the air channel. 3. Az 1. igénypont szerinti eljárás, azzal jellemezve, hogy szabályozóelemként több, a légáram felé homorúan ívelt, és ívelésében változtatható szabályozóívet (26) alkalmazunk.Method according to claim 1, characterized in that the control element is a plurality of control curves (26) which are concave to the air stream and which can be varied in its curve. 4. Berendezés nagy szakítószilárdságú, alakítható szálpaplanok áramlásdinamikai úton való előállítására szálbundából, amely kötőanyaggal impregnált cellulózszálakból és termoplasztikus szálakból, és/vagy növényi eredetű természetes szálakból áll, azzal jellemezve, hogy a berendezés az anyag áramlásának irányában az alábbi sorrendnek megfelelően, egymás után elhelyezett szálbundalerakó gépből (1), nyomóhengerpárból (3, 4), behúzóhengerpárból (5), dobból (6), ventilátorok (12) által táplált légcsatomából (10) áll, amelyben egy vagy több szabályozóelem van elhelyezve, továbbá egy, tengelye körül elforgathatóan állítható Venturi-rúdból (7) áll, amelynek szélességben változtatható bordái (8) vannak, továbbá diffúzorból (13) szálbundalerakó dobból (15), továbbítóhengerekből (16, 17), súlymérő berendezésből (19), tűzőgépből (20), présből (21), vágógépből (22) és lerakószerkezetből (24) áll.Apparatus for the production of high-tensile, deformable, convertible fiber webs by flow dynamically comprising a binder-impregnated cellulosic fiber and thermoplastic fibers and / or natural fibers of plant origin, characterized in that the device is arranged in the following order of flow of material, consisting of a machine (1), a pair of thrust rollers (3, 4), a pair of retracting rollers (5), a drum (6), an air duct (10) fed by fans (12) in which one or more control elements are arranged; consisting of a rod (7) having width-adjustable ribs (8), a diffuser (13), a fiber bundle drum (15), transfer rollers (16, 17), a weighing device (19), a stapler (20), a press (21), from a cutting machine (22) and a dump device L is (24). 5. A 4. igénypont szerinti berendezés, azzaljellemezve, hogy a szabályozóelemek állítható csappantyúk (25).Apparatus according to claim 4, characterized in that the control elements are adjustable flaps (25). 6. A 4. igénypont szerinti berendezés, azzal jellemezve, hogy a szabályozóelemek egy vagy több, a levegőáram felé homorúan ívelt alakú és ívelésében állítható szabályozóívek (26).Apparatus according to claim 4, characterized in that the control elements are one or more control arcs (26) which are convex to the air flow and adjustable in curvature.
HU9400763A 1992-07-17 1993-07-15 Process and apparatus for dynamic-flow production of ductile, highly tear-resistant fiber mats HU216949B (en)

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