EP1819864B1 - Walzenanordnung für die vlies-produktion - Google Patents

Walzenanordnung für die vlies-produktion Download PDF

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Publication number
EP1819864B1
EP1819864B1 EP05813636A EP05813636A EP1819864B1 EP 1819864 B1 EP1819864 B1 EP 1819864B1 EP 05813636 A EP05813636 A EP 05813636A EP 05813636 A EP05813636 A EP 05813636A EP 1819864 B1 EP1819864 B1 EP 1819864B1
Authority
EP
European Patent Office
Prior art keywords
roller
rollers
pair
roll gap
transfer belt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP05813636A
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German (de)
English (en)
French (fr)
Other versions
EP1819864A2 (de
Inventor
Raymond Norgaard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Concert GmbH
Original Assignee
Concert GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Concert GmbH filed Critical Concert GmbH
Priority to PL05813636T priority Critical patent/PL1819864T3/pl
Publication of EP1819864A2 publication Critical patent/EP1819864A2/de
Application granted granted Critical
Publication of EP1819864B1 publication Critical patent/EP1819864B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D04H1/425—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
    • D04H1/44—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
    • 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
    • D04H1/70—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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
    • D06C15/02—Calendering, pressing, ironing, glossing or glazing textile fabrics between co-operating press or calender rolls
    • 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
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5418—Mixed fibres, e.g. at least two chemically different fibres or fibre blends

Definitions

  • the invention relates to a device in the form of an arrangement of rollers, in particular embossing rollers and at least one conveyor belt in the form of a transfer belt for nonwoven production, in particular the airlaid production.
  • Airlaid production is to be understood as the production of nonwoven, nonwoven fiber products with fiber lengths of up to 50 millimeters.
  • the fiber webs are made of natural or synthetic fibers of different material and different staple length.
  • a binder such as latex may be provided.
  • the binding can also be achieved by partial melting and fusing together of the fibers.
  • the nonwoven fabric to be produced - including the intermediate product - can be multi-layered.
  • the nonwoven fabric can delter wood cellulose (fluff pulp).
  • Suitable synthetic fibers, in particular the binding of the nonwoven serving synthetic matrix fibers may contain, for example, polyester, polypropylene or viscose.
  • Particularly suitable synthetic binder fibers are so-called bicomponent fibers which have a core of a first material surrounded by a sheath of a plastic, for example polyethylene, which allows fusion of the fibers with each other and with natural and matrix fibers.
  • a plastic for example polyethylene
  • the bandwidth of the desired density of the product depends strongly on the final product for which the nonwoven fabric is to be used.
  • the bandwidth of the desired fiber fleece density is thus very high.
  • the bandwidth of the material to be processed (see above) as well as the bandwidth of the staple lengths of the individual fibers is very large.
  • the production of an air-laid fibrous web of the type concerned here usually involves mixing the fibers in a forming head, which is arranged above a forming belt in the form of an air-permeable conveyor belt and deposits the processed mixed fibers as evenly as possible on the forming belt. Below the forming belt suction boxes are arranged, with which the fibers deposited on the forming belt are sucked onto the forming belt.
  • the forming head in the direction of the forming belt also known as forming wire
  • a compressor roller acts from above on the fiber-air mixture deposited on the forming belt and precompresses this mixture.
  • air is pressed out of the fiber-air mixture, so that the thickness of the mixture decreases and its density increases.
  • the thus pre-compressed fiber-air mixture is then transferred from a forming belt to a transfer belt, which is above the pre-compressed fiber-air mixture and permeable to air, so that the fiber-air mixture from below by means of a transfer belt arranged above the suction box to the Suction tape is removed and removed from the forming belt.
  • the transfer belt serves to supply the pre-compressed fiber-air mixture of the roller arrangement of interest here for the further compression of the fiber-air mixture to a nonwoven.
  • EP 0 867 550 shows various arrangements of two pairs of rollers for the compression of a nonwoven fabric.
  • EP 0 899 370 shows another arrangement of rollers for compression of a nonwoven fabric.
  • DE 94 08 597 shows an arrangement in which a nonwoven fabric is compressed between two rollers ,
  • the roller assembly of interest serves to compress the fiber-air mixture as far as possible and in a preferred embodiment by heating the fiber-air mixture a fusion of individual fibers to effect - with possibly simultaneously desired imprinting a structure - which is a nonwoven fabric as an intermediate desired properties arises.
  • the device concerned here should be suitable for the production of a wide range of products, which may differ significantly in their composition as described above and which accordingly also require a different treatment.
  • the amount of heat required to fuse the fibers depending on the composition of the fiber-air mixture and the desired thickness and density of the starting material is very different.
  • the fiber-air mixture supplied by the transfer belt remains as possible in tact and processed evenly, in particular further compressed.
  • a problem in this context is that the air to be pressed out of the fiber-air mixture during the compression must escape in the opposite direction to the transport direction. In the worst case, an air cushion is formed, which even leads to undesirable wrinkling in the nonwoven fabric.
  • a roller assembly in which a roller assembly is provided, the four Rollers each comprise approximately parallel to each other aligned axes of rotation.
  • a first of these four rollers serves as a deflection roller for a transfer belt.
  • a second roller is arranged below the first roller and forms together with this a first pair of rollers arranged one above the other.
  • a third roller is arranged behind the second roller when viewed in the direction of the transfer belt, and a fourth roller is arranged behind the first roller, as viewed in the direction of travel of the transfer belt.
  • the rollers are displaceable relative to each other transversely to their axis of rotation such that a nip for the treatment of a nonwoven fabric is selectively adjustable between the second and third rollers or between the third and fourth rollers, so that in the first case the second and third rollers form a juxtaposed pair of rollers and connect a nip for a substantially vertical nonwoven transport, while in the second case, the third and the fourth roller disposed above a second superposed roller pair form (next to the first stacked roller pair in the form of the first and second roller) and include a nip for substantially horizontal nonwoven transport therebetween.
  • the invention is based on the idea of enabling the widest possible range of products to be produced by means of a special design of the roll arrangement directly downstream of the transfer belt. It has been found that the chosen approach, especially to make this roll arrangement particularly, is particularly promising over alternative approaches, such as the provision of further roll arrangements farther from the transfer belt.
  • the roller arrangement according to the invention makes it possible to set a different transport path, depending on the type of nonwoven fabric to be produced, namely a transport path between the first and second rollers and then the second and third rollers or a transport path between the first and second rollers and subsequently between the third and fourth roller.
  • the pair of rollers connected downstream of the first superimposed pair of rollers is thus either a pair of rollers (arranged substantially horizontally) next to each other or a pair of rollers (substantially vertically) arranged one above the other. That way you can third and fourth roller through.
  • the pair of rollers connected downstream of the first superimposed pair of rollers is thus either a pair of rollers (arranged substantially horizontally) next to each other or a pair of rollers (substantially vertically) arranged one above the other. In this way, alternatively, the specific advantages of one or the other roller assembly can be used.
  • An advantage of the former transport path is that the nonwoven fabric is supported by the second roller over a relatively large circumferential angle of, for example, 90 °.
  • a loose nonwoven fabric for the production of a product with low tear resistance of, for example, up to 5N / 50 mm according to EDANA Recommended Test Method "Tensile Strength" 20.2-89 can be effectively kept together.
  • the second roll is heated, there is a large area for heat transfer from the second roll to the nonwoven fabric.
  • the alternative, second-named transport route is useful if the fleece delivered by the first pair of rolls arranged on top of one another is sufficiently strong so that no pronounced support of this fiber fleece is required.
  • the advantage of the second-mentioned transport path is then that an escape of air during the compression of the nonwoven fabric in the second superposed roller pair formed by the third and fourth roller is easily possible. The risk of wrinkling is lower overall.
  • air nozzles for pressurized or suction air can be provided below or above the transport path between the first and the second pair of rollers arranged one above the other, which can generate an upwardly directed, over the entire width of the transport path air flow to the loose To support or guide fiber fleece on the second transport path between the first and the second stacked pair of rollers or steer.
  • roller pairs of rollers assume the function of such roller pairs in these configurations, which are also referred to as embosser.
  • roller pairs allow under certain circumstances, to dispense with a downstream of the mold head compressor roller, as mentioned above.
  • the roll gap formed between two rolls of a pair of rolls is preferably adjustable in various respects.
  • each one of the rollers of a pair of rollers allows a small relative inclination of the axis of rotation relative to the axis of rotation of the respective other roller of the respective pair of rollers, so that there is a nip, which is closed close in the middle of the rollers or a higher pressure than in the respective longitudinal ends of the rollers.
  • the third roller is designed as a deflection-controllable roller or as a roller with variable crowning or crowning.
  • a deflection-controllable roller known per se makes it possible, in particular, to produce uniform line pressure over the entire web width of the fiber web. Under line pressure is understood here to be the course of the pressing pressure in the longitudinal direction of the nip parallel to the axes of rotation of the rollers.
  • the third roller is designed as a deflection-controllable roller, it is advantageous if the direction of the lateral deflection can be adjusted so that the deflection can be adjusted optionally in a horizontal plane or in a vertical plane.
  • a deflection in the horizontal direction is desirable when the third roller cooperates with the second roller as juxtaposed roller pair, while a deflection in the vertical direction is desirable when the third roller cooperates with the fourth roller as the second stacked roller pair.
  • the latter is between 0 and 150 N / mm, preferably between 0.01 and 100 N / mm. Since this is a line print, the dimension is length-related and not area-related.
  • the distance of the axis of rotation of the first roller from the axis of rotation of the second roller is preferably adjustable in that the first roller is arranged transversely to the axis of rotation in a preferably substantially vertical plane. Since the first roller also serves as a deflection roller for the transfer belt, it may be advantageous if the plane within which the first roller is transversely displaceable relative to the vertical slightly inclined so that when moving the first roller at least partial band length compensation takes place.
  • transversely displaceable is meant here a continuous displacement of a roller transversely to the orientation of the respective axis of rotation.
  • the third roller with respect to the second roller arranged transversely, so that the distance between the two axes of rotation and a corresponding line pressure between the second and third roller in a desired manner can be adjusted when the second and third roller cooperate as juxtaposed roller pair.
  • the third roller is preferably transversely displaceable in a substantially horizontal plane.
  • the fourth roller is arranged transversely displaceable in a preferably at least approximately vertical plane, so that the Set the distance of the fourth roller from the third roller or the line pressure between these two rollers in the configuration in which the third and the fourth roller cooperate as a second pair of rollers arranged one above the other.
  • the third roller which is transversely displaceable in the horizontal plane, is preferably brought into a position in which the third roller has a greater distance from the second roller than in the configuration in which the second and third rollers are arranged as a side-by-side (horizontal) roller.
  • All of the four rolls may be formed as smooth rolls with a smooth shell surface.
  • the mantle surface is preferably formed in each case by a jacket made of metal, preferably steel.
  • individual ones of the rolls may be formed as embossing rolls and correspondingly have a mantle surface which is provided with indentations or elevations in accordance with the desired embossing pattern.
  • only one of the two rolls of a pair of rolls is regularly formed as an embossing roll, while the respective other roll serves as a counter roll.
  • the respective mating roll can have a plastic surface instead of a metallic mantle surface which is formed by a plastic coating on a metallic roll base body.
  • the elevations of the embossing rollers cause the nonwoven to be compacted in the region of the elevations of the embossing rollers is compressed more densely than in intermediate areas.
  • the fibers are fused together especially in the areas which are predetermined by the elevations of the embossing roll.
  • the elevations of the embossing rollers preferably have a uniform pattern, for example in the form of a nub pattern, which causes a punctiform compression of the nonwoven fabric.
  • Other surface structures of the embossing roll may consist, for example, in diamond-shaped depressions of the mantle surface with interposed webs.
  • the second and / or the fourth roller come into consideration, so that the first roller and the third roller are designed as smooth rollers or as plastic-coated counter-rollers, respectively.
  • the first roller is preferably designed as a roller with an elastic mantle surface (rubber roller).
  • rollers preferably in particular the second, the third and / or the fourth roller may be heatable, so that they allow a heat input into each located with the corresponding roller in contact nonwoven fabric.
  • thermal bonding of the fibers can be effected by melting individual plastic fibers together and with natural and matrix fibers.
  • a conveyor belt for receiving and for further transport of treated by the roller assembly nonwoven fabric is preferably provided for receiving the nonwoven fabric either in the case of the first transport path below the nip formed by the second and third roller or in the case of the second-mentioned transport path in the transport direction seen behind the nip formed by the third and fourth rolls.
  • the conveyor belt may have a belt section rising in the transport direction, which receives the fiber fleece below the roll gap formed by the second and third rolls with a vertical conveying direction.
  • the conveyor belt may take two alternative configurations, namely the aforesaid configuration and, alternatively, a configuration in which a guide roller of the conveyor belt is located immediately behind the third roller when viewed in the direction of transport when the third roller together with the fourth roller has a second one superposed roller pair forms, so that in this case funded by the second nip with horizontal conveying direction nonwoven fabric on the shortest paths and preferably on the same horizontal plane as the second nip reaches the conveyor belt.
  • FIG. 1 illustrated schematic representation of a portion of an apparatus 10 for the production of non-woven nonwoven fiber products is used to explain the interest here part of fiber product manufacturing.
  • the conveying direction is as indicated by arrows substantially from right to left.
  • a mixture of fibers - possibly of various types - to be processed by the device 10 and possible further constituents of the desired nonwoven fabric are fed in already metered form to a forming head 12.
  • the forming head 12 serves to achieve the highest possible degree of separation of the fibers and the most uniform possible distribution of the fibers and possible further nonwoven components on a forming belt or forming wire 14.
  • the forming belt 14 is formed like a sieve and therefore permeable to air. It transports the fibers deposited as uniformly as possible on the forming belt 14 as fiber-air mixture in the transport direction indicated by the arrow from right to left. The fibers or the fiber-air mixture is thereby sucked by a arranged below the forming belt 14 suction box 16 against the forming belt 14.
  • the suction box 16 is thus open at the top and provided with a connection 18 for sucking air.
  • a compaction roller 20 may be provided which serves to pre-compact the fiber-air mixture on the forming belt 14, in which part of the air is displaced from the fiber-air mixture.
  • a transfer belt 22 is arranged just above the forming belt 14.
  • the transfer belt 22 is similar to the forming belt 14 formed like a sieve and serves to take over the fiber-air mixture from the forming belt 14.
  • a second suction box 24 is arranged above the transfer belt 22, which makes it possible to transport the fiber-air mixture by means of the transfer belt 22 quasi overhead.
  • the transfer belt 22 conveys the fiber-air mixture to a four-roller 26, 28, 30 and 32 having roller assembly, of which a first roller 26 also serves as a deflection roller for the transfer belt 22 and together with a disposed below the first roller 26 second roller 28 forms a first pair of rollers arranged one above the other.
  • the first, superimposed pair of rollers 26, 28 forms between them a first nip with a horizontal conveying direction, in which the fiber-air mixture is further compressed.
  • the nip formed by the first superimposed pair of rollers 26, 28 is adjustable with regard to the gap width or with respect to the line pressure prevailing in the nip.
  • the first roller 26 is arranged adjustable in at least approximately vertical direction.
  • the first roller 26, which serves as a deflection roller, is preferably designed as a roller with an elastic mantle surface (rubber roller).
  • the second roll 28 may then be formed as an embossing roll with a smooth or textured steel surface.
  • roller assembly 26, 28, 30 and 32 offers two alternatives.
  • a first transport route is in FIG. 1 represented by a dashed line and leads starting from the first nip between the second roller 28 and the third roller 30 through to a conveyor belt 34.
  • the second roller 28 and the third roller 30 together form a juxtaposed pair of rollers, which between them a nip with includes vertical conveying direction.
  • this first transport path is that the fiber-air mixture emerging from the first nip is supported over a relatively large area over an angular range of approximately 90 ° by the mantle surface of the second roller 28. This is particularly advantageous in fiber-air blends with low tear resistance.
  • the second roller 28 can be heated. In this case, results from the relatively large contact surface of the fiber-air mixture on the second roller 28 in the case of the first transport path, a large area for heat transfer from the second roller 28 to the fiber-air mixture.
  • the fiber-air mixture is further compressed and then deposited on a rising portion of the conveyor belt 34.
  • the fiber-air mixture is preferably guided around the third transport roller 30 in a large angular range, so that a further, because of a large contact surface, efficient heat transfer from the third roller 30 to the fiber-air mixture becomes possible.
  • the third roller 30 is thus preferably also heatable.
  • the third roller 30 may also be formed as a deflection-controllable roller.
  • deflection-controllable roller a certain deflection of the axis of rotation can be adjusted in order to set a corresponding roller gap or a corresponding course of the line pressure in this way. Due to the bearing of a roller in the region of its two longitudinal ends is in such rolls, which are not deflection controlled due to the linear pressure caused by bending moments a deflection of the axis of rotation, which results in a nip, which widest in the middle of the roller between the camps is.
  • At least one of the rollers of a pair of rollers instead of deflection-controlled can also be executed crowned, that is, have a diameter increasing from the longitudinal ends toward the center.
  • the mantle surface thus shows a slightly curved contour.
  • Such crowned or cambered rollers are thus an alternative to deflection-controllable rollers in order to achieve even with a larger line pressure a nip with consistently the same width.
  • the rollers 28 and 30 form a pair of rollers arranged side by side whose axes of rotation lie approximately in a horizontal plane
  • the deflection-controllable roller in this case should allow a deflection in a horizontal plane, as in FIG. 2 is shown in dashed lines.
  • the second roll can be designed as an embossing roll with a structured jacket surface which has corresponding elevations or depressions.
  • the fiber fleece is then compressed more strongly, which, with simultaneous heat input, results in the fleece being more densely compressed and more strongly bonded in the more compressed regions.
  • a second, alternative transport route is in FIG. 1 shown in phantom and leads the emerging from the first nip fiber-air mixture directly to a second nip, which results between the third and fourth roller as a nip with a horizontal conveying direction, when the third and fourth roller cooperate as a second, superposed roller pair.
  • the second transport path can be advantageous.
  • the fourth roller may be formed as an embossing roller and have a different structure of the mantle surface than, for example, the second roller 28.
  • the third roller 30 is designed as a deflection-controllable roller.
  • the plane of deflection of the rotation axis of the third roller is preferably oriented vertically.
  • roller arrangement with the rollers 26, 28, 30 and 32 should alternatively allow the first and the second transport path, it is advantageous if the plane of the deflection in the case of a deflection-controllable third roller 30 is selectively adjustable so that this plane is horizontal (first Transport path) or vertically (second transport route) is oriented.
  • the fourth roller 32 can be heated.
  • the third roller 30 is mounted horizontally, transversely displaceable with respect to its axis of rotation. In this way, the third roller 30 can be moved away from the second roller 28, when the third roller 30 together with the fourth roller 32 is to form a stacked roller pair. In this case, the second and third rollers are unlikely to mesh with each other due to the rotational sense then required for the third roller.
  • air nozzles may be provided below or above the transport path between the first superimposed pair of rollers 26, 28 and the second superimposed pair of rollers 32, 30, which may generate an upwardly directed, over the entire width of the transport path reaching air flow in order to support that loose nonwoven fabric on the second transport path between the first superimposed pair of rollers 26, 28 and the second superposed pair of rollers 32, 30.
  • Such a horizontal displaceability of the third roller also makes it possible to set a suitable nip between the second roller 28 and the third roller 30, if they cooperate in the case of the first transport path as a pair of rollers arranged side by side.
  • the fourth roller 32 is preferably transversely displaceable in the vertical direction with respect to its axis of rotation to adjust the nip in the case where the third and fourth rollers cooperate as a second superposed roller pair (second transport path).
  • the conveyor belt 34 can also be designed reconfigurable, so that an upper deflecting roller 36 can be brought close to the third roller 30 when the second transport path is selected.
  • it will usually be necessary to move a lower guide roller 38 for the conveyor belt 34, so that the conveyor belt 34 does not touch the third roller 30 and remains tensioned at the same time.
  • the rising band portion of the conveyor belt 34 in this case is perpendicular, it would not be suitable to receive nonwoven fabric below a nip formed between the second roller 28 and the third roller 30 when the first transport path is selected. Therefore, it is advantageous if the course of the conveyor belt 34 is reconfigurable between two configurations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Advancing Webs (AREA)
  • Metal Rolling (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
EP05813636A 2004-11-05 2005-11-03 Walzenanordnung für die vlies-produktion Not-in-force EP1819864B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05813636T PL1819864T3 (pl) 2004-11-05 2005-11-03 Układ walców do wytwarzania włókniny

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004054532 2004-11-05
DE102004056154A DE102004056154A1 (de) 2004-11-05 2004-11-17 Walzenanordnung für die Vlies-Produktion
PCT/EP2005/055735 WO2006048437A2 (de) 2004-11-05 2005-11-03 Walzenanordnung für die vlies-produktion

Publications (2)

Publication Number Publication Date
EP1819864A2 EP1819864A2 (de) 2007-08-22
EP1819864B1 true EP1819864B1 (de) 2010-07-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05813636A Not-in-force EP1819864B1 (de) 2004-11-05 2005-11-03 Walzenanordnung für die vlies-produktion

Country Status (9)

Country Link
US (1) US7690093B2 (da)
EP (1) EP1819864B1 (da)
JP (1) JP4630341B2 (da)
AT (1) ATE475736T1 (da)
CA (1) CA2586495C (da)
DE (2) DE102004056154A1 (da)
DK (1) DK1819864T3 (da)
PL (1) PL1819864T3 (da)
WO (1) WO2006048437A2 (da)

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DE102009055951A1 (de) 2009-11-27 2011-06-01 Glatfelter Falkenhagen Gmbh Absorbierende Struktur
DE102010006228A1 (de) 2010-01-28 2011-08-18 Glatfelter Falkenhagen GmbH, 16928 Flexibles, stark absorbierendes Material
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CA2586495A1 (en) 2006-05-11
US20090119895A1 (en) 2009-05-14
US7690093B2 (en) 2010-04-06
ATE475736T1 (de) 2010-08-15
WO2006048437A3 (de) 2006-09-21
DE102004056154A1 (de) 2006-05-11
DK1819864T3 (da) 2010-11-22
EP1819864A2 (de) 2007-08-22
DE502005010021D1 (de) 2010-09-09
WO2006048437A2 (de) 2006-05-11
PL1819864T3 (pl) 2011-01-31
JP4630341B2 (ja) 2011-02-09
CA2586495C (en) 2013-07-16

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