EP2695976B1 - Supply device for delivering opened fibres or flocked fibres to a transport device - Google Patents
Supply device for delivering opened fibres or flocked fibres to a transport device Download PDFInfo
- Publication number
- EP2695976B1 EP2695976B1 EP12199625.0A EP12199625A EP2695976B1 EP 2695976 B1 EP2695976 B1 EP 2695976B1 EP 12199625 A EP12199625 A EP 12199625A EP 2695976 B1 EP2695976 B1 EP 2695976B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- supply
- roller
- supply device
- transport
- feed
- 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.)
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- 239000000835 fiber Substances 0.000 claims description 113
- 239000000463 material Substances 0.000 claims description 19
- 238000003860 storage Methods 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 2
- 239000002657 fibrous material Substances 0.000 description 35
- 239000004745 nonwoven fabric Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000009960 carding Methods 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
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
- D04H1/70—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
- D04H1/736—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 characterised by the apparatus for arranging fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/12—Moulding of mats from fibres
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G23/00—Feeding fibres to machines; Conveying fibres between machines
- D01G23/02—Hoppers; Delivery shoots
- D01G23/04—Hoppers; Delivery shoots with means for controlling the feed
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G23/00—Feeding fibres to machines; Conveying fibres between machines
- D01G23/02—Hoppers; Delivery shoots
- D01G23/04—Hoppers; Delivery shoots with means for controlling the feed
- D01G23/045—Hoppers; Delivery shoots with means for controlling the feed by successive weighing; Weighing hoppers
-
- 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
- D04H11/00—Non-woven pile fabrics
- D04H11/08—Non-woven pile fabrics formed by creation of a pile on at least one surface of a non-woven fabric without addition of pile-forming material, e.g. by needling, by differential shrinking
Definitions
- the invention relates to a feeding device for feeding dissolved fibers or fiber flakes onto a transport device.
- fiber flocks are usually first delivered from a Faserflockenspeiser to a transport device, which in the form of a Faserflockenmatte in a first alternative to a pile producer, preferably a carding, in a second alternative directly to an aerodynamic web forming agent, or in a third alternative directly to a solidification machine, such as a needle machine, further transported.
- a transport device which in the form of a Faserflockenmatte in a first alternative to a pile producer, preferably a carding, in a second alternative directly to an aerodynamic web forming agent, or in a third alternative directly to a solidification machine, such as a needle machine, further transported.
- the pile produced in the pile producer (which can also be referred to as a single-layer or two-layer nonwoven) is then fed to a fleece layering machine which places a multilayer fleece from the pile web by cross-lapping.
- This multi-ply web can then be consolidated by suitable consolidation machines, for example by needling.
- suitable consolidation machines for example by needling.
- there are corresponding intervention possibilities at different points of the plant For example, in the area between fiber flake feeders and pile producers, e.g. the weight of the fiber flake mat measured by means of a belt weigher and based on this the feed rate of the pile generator are controlled so that always passes an identical amount of fiber material per time interval in the pile generator.
- the fiber flake mat or the fleece has a predetermined uneven transverse profile or longitudinal profile.
- the present invention has for its object to provide a feeding device that can be used at various points of a web forming system and allows accurate location and quantity dosage of the fiber material.
- the feeding device for supplying dissolved fibers or fiber flakes to a transport device which serves for further transport of the formed web or fiber flake mat in a transport direction, a plurality of individually controllable feed rollers and at least one cooperating with the feed rollers driven opener roller.
- the feeding device comprises a plurality of horizontally juxtaposed feed segments such that each feed segment is assigned its own feed roller.
- each draw-in roller is fed with its own roving or its own fiber fleece strip.
- the amount of material per feed segment is particularly precisely metered.
- each dispensing segment is associated with a dispensing device for storing and dispensing a roving or a nonwoven strip such that each feed roller removes the roving provided by the associated dispenser or the nonwoven strip.
- a dispensing device for storing and dispensing a roving or a nonwoven strip such that each feed roller removes the roving provided by the associated dispenser or the nonwoven strip.
- the feed device can also have a fiber flute shaft as the material reservoir for the feed rollers.
- each feed segment has a width of between 5 and 100 mm, preferably between 15 and 30 mm, particularly preferably between 20 and 25 mm.
- each feed roller on a set with respect to a direction of rotation of the feed roller rearwardly projecting teeth, wherein the opening roller is driven in the same direction of rotation as the feed rollers and has a set with respect to this direction forward protruding teeth.
- the opener roller the fiber material is fed from below obliquely.
- each pickup roller may have a clothing with teeth projecting rearwardly with respect to a direction of rotation of the pickup roller, the opener roller being driven in a second rotational direction opposite to the direction of rotation of the pickup rollers, and a clothing forward with respect to the second rotational direction has protruding teeth.
- the opener roller is fed to the fiber material from obliquely above, taken over by the opener roller and guided in a semicircle until it can fall into the discharge shaft.
- exactly one opener roller is provided which extends transversely to the transport direction of the transport device and horizontally over all feed segments.
- the opener roller can simultaneously remove the fiber material provided by each draw-in roller and then deliver it to the desired position of the fleece.
- the cross profile of the nonwoven to be produced or the fiber flake mat is best influenced if the feed segments are arranged side by side in a direction transverse to a transport direction of the transport device.
- At least one further type of roller or conveyor belt can be assigned to each feed segment, wherein the rollers or conveyor belts of the same type of feed segments in one Direction transverse to a transport direction of the transport device are arranged side by side and are controlled separately from each other.
- each feed roller is driven by a servomotor.
- the use of a separate servo motor for each pickup roller ensures the independent control of each feed roller and thus a high-precision profile adjustment of the web or the fiber flake mat by means of individually controlled Zu Kunststoffsegmente.
- a storage roller is preferably arranged between the dispenser and the pickup roller of each feed segment, extending transversely to the transport direction of the transport device and horizontally across all the feed segments, and around the one turn of each of Dispenser provided fiber roving or each nonwoven strip is wound.
- the feed rollers do not have to remove the fiber material directly from the dispenser, but can do so at a fixed location on the storage roller.
- a particularly preferred embodiment of the present invention is also present when two feed devices according to the invention are connected in series with one another to form a web formation machine.
- the feed segments of the two feed devices have the same width and the feed segments of the second, downstream feed device are offset with respect to the feed segments of the first feed device, preferably by half the width of the feed segments. In this way, can be produced by the double Faserzu meltrindries a particularly uniform fleece.
- the nonwoven forming system may have, between the first and the second downstream arranged feeding device, a measuring device for measuring the basis weight of the nonwoven over its transverse width to the transport direction of the transport device width in a measuring range of the transport device for determining a cross profile and longitudinal profile of the nonwoven, and also a control or control means adapted to control the second feeding device based on the results of the measuring device so that the second feeding device for homogenizing the nonwoven feeds dissolved fibers or fiber flakes onto detected thin spots of the web, or in that the second feeding device supplies in a targeted manner fibers or fiber flakes dissolved in order to form a desired uneven transverse profile and / or longitudinal profile of the nonwoven fabric with thin spots and thick places.
- the web formation is further refined.
- a device for forming a uniform or profiled fiber flake mat is shown.
- the device comprises a material dispenser, which is designed here as a fiber flake feeder 2. Behind the device, the fiber flake mat produced is fed to the catchment area of a pile generator 3, in particular a carding machine. Similarly, the fiber fluff mat 12 produced may be directly exposed to an aerodynamic web former (not shown) or a consolidation machine 50 (see FIG Fig. 2 ).
- the Faserflockenspeiser 2 are fiber flakes on a discharge belt 4 from which is formed circumferentially and around a plurality of guide rollers 6, of which only one is shown in the drawing, is stretched.
- an upper roller 8 can also be arranged in the exit region of the fiber flake feed 2, which is driven in opposite directions to the discharge belt 4 and thus moves and compacts the fiber flake mat together with the discharge belt 4 in the direction of a circulating transport belt 10.
- the discharge conveyor 4 and the conveyor belt 10 together form a transport device which ensures the further transport of the fiber flake mat 12.
- the transport device 4, 10 connects the Faserflockenspeiser 2 and the pile generator 3. It is also conceivable that the conveyor belt 10 extends directly below the Faserflockenspeisers 2 (see the other figures) and thus the discharge belt 4 is omitted, or that the transport device has other than the sections and elements 4, 10 shown.
- the fiber flake material is advanced as a fiber flake mat 12 with a variable speed v in the direction of the catchment area of the pile generator 3 and thus in the transport direction.
- the conveyor belt 10 can also have a belt scale which determines an average weight of the fiber flake mat 12 in a flat weighing area, which has a certain length and extends over the entire width of the fiber flake mat 12.
- the transport speed v of the transport device and thus at the same time the intake speed of the pile generator 3 can be controlled accordingly so that always a substantially uniform mass flow of fiber flake material reaches the pile generator 3 per time interval.
- a measuring device 14 which measures the weight per unit area of the fiber flake mat 12 over its transverse width to the transport direction in a measuring range of the transport device 4, 10, thus the cross profile and due to the movement of the transport device 4, 10 and the longitudinal profile of the fiber flake 12, in particular thin areas and / or thick areas of the fiber flake mat 12 to determine.
- the measuring device 14 has a plurality of measuring segments transversely to the transport direction of the fiber flake mat 12 and carries out its own measurement in each measuring segment. In this way, thin spots or thick places can be determined two-dimensionally, ie in the longitudinal and in the transverse direction.
- the width of such a measuring segment is between 5 and 100 mm, preferably between 15 and 30 mm, more preferably between 20 and 25 mm.
- Such a measuring device can either be used in addition to the belt scale or take over their function.
- the measuring device 14 is designed as a series of transversely to the transport direction of the fiber flake mat 12 and measuring wheels 16 arranged horizontally next to each other. In the illustrated lateral cross-sectional view thereof only a measuring wheel 16 can be seen.
- Each of these measuring wheels 16 is deflected independently of the other and connected to a corresponding evaluation device 18, which detects the deflection of the associated measuring wheel 16, which is due to the different thickness or the different basis weight of the fiber flake mat 12.
- position sensors for measuring the height of the measuring wheels 16 or their carriers or rotary angle meters for determining the angle of rotation of the measuring wheels 16 or their carriers come into consideration as the evaluation device 18. This can be on the respective surface weight of the fiber flake mat 12 can be closed in the associated measuring segment.
- the measuring device 14 may also be configured as another form of a mechanical measuring device. It is also possible to design the measuring device 14 as a radiometric measuring device. In this case, a radiometric measuring probe is arranged either in each measuring segment, which determines the surface weight of the fiber flake mat 12 in the respective measuring segment by means of radiometric measurements, or a single radiometric measuring probe is provided which can be moved transversely across the width of the fiber flake mat 12 and continuously or in certain measuring distances, the basis weight of the fiber flake mat 12 receives. Likewise, a combined use of both a radiometric and a mechanical measuring device 14 is possible.
- the results of the measuring device 14 are transmitted to a control or regulating device 20, which controls a feed device 22, which can also be referred to as a profile changing device in the present application, on the basis of the results of the measuring device 14.
- the feed device 22 is arranged in a profile change region of the transport device 4, 10 downstream of the measuring range.
- the controller 20 controls the feeder 22 such that the feeder 22 either supplies dissolved fiber or fiber flakes to the determined thin spots of the fiber flake mat 12 to even out the fiber flake mat 12, and / or that the feeder 22 forms a desired non-uniform cross profile and / or. or longitudinal profiles of the fiber flake mat 12 with thin points and thick spots dissolved fibers or fiber flakes specifically supplies.
- the controlled feeding of dissolved fibers or fiber flakes is effected by separate control of a plurality of feed segments of the feed device 22 arranged transversely to the transport direction and horizontally next to one another.
- the width of such a feed segment preferably corresponds to the width of the measuring segments. It is thus in the range of between 5 and 100 mm, preferably between 15 and 30 mm, more preferably between 20 and 25 mm.
- each feeder segment is associated with a dispenser 24 for storing and dispensing a roving 26 or a nonwoven strip.
- the dispensing device 24 is designed as a coil, but it can also be designed as a spinning can or the like.
- the roving 26 or nonwoven strip extends from the dispenser 24 to a preferably rubberized storage roll 28 extending transversely of the transport direction and horizontally preferably across all feed segments, and one turn of each roving 26 or nonwoven strip provided by the dispenser 24 is adjacent to each other Storage roller 28 wound.
- the storage roller 28 is driven in one direction of rotation (see the corresponding arrow in the drawing), preferably by means of a servomotor 30 and also preferably continuously at a relatively slow speed. In certain embodiments, the storage roller 28 may also be omitted.
- FIG. 1 illustrated preferred embodiment is an integral storage roller 28 which simultaneously receives the different strands of the roving 26 and the nonwoven strip of all feed segments side by side. Likewise, however, there may be a separate storage roller per feed segment.
- Each feed segment is also associated with a driven with a servo motor 34, also in the same direction of rotation rotating feed roller 32 assigned.
- the feed roller 32 pulls the respective provided by the associated dispenser 24 roving 26 or the nonwoven strip, either with the interposition of the storage roller 28 or directly.
- each feed segment has its own feed roller 32, only one feed roller 32 can be seen due to the series arrangement in the drawing.
- Each feed roller 32 preferably has a clothing with respect to the direction of rotation rearwardly projecting teeth.
- a particular advantage of the interposition of the storage roller 28 is that the storage roller 28 slips under those fiber ends 26 or non-woven fabric strips, which are only loosely wound around them. This applies accordingly to all Zupublishedsegmente in which the feed roller 32 is not driven at all or slower than the storage roller 28. Only when a feed roller 32 runs faster than the storage roller 28, the corresponding winding of the roving 26 or the nonwoven strip to the Storage roller 28 pulled tight and retracted the material accordingly.
- the feed rollers 32 may have all possible speed profiles, including a plateau profile (e.g., in the form of a truncated pyramid) with equal but different length plateaus, depending on the desired output of fiber material.
- a plateau profile e.g., in the form of a truncated pyramid
- â ffnerwalze 36 which is preferably integrally formed and extending transversely to the transport direction and horizontally across all Zupublishedsegmente. Likewise, however, there may be a separate opening roll per feed segment.
- the opener roller 36 is driven in the illustrated example in the same direction as the feed rollers 32.
- the opener roller 36 preferably has a clothing with respect to the direction of rotation protruding teeth, whereby it opens the twisted or compressed fiber flake material of the roving 26 and the fiber fleece strip particularly well so that loose fiber flakes or even fine fibers are peeled off. These fall into a corresponding discharge chute 38 and from there guided on the fiber flake mat 12. It can also be several discharge shafts 38 side by side provided for the different Zucommendedsegmente.
- a cleaning roller 40 can still be arranged in the region of the dispensing shaft 38, which strips off the fiber flakes adhering to the teeth of the opening roller 36.
- the centers of the feed rollers 32 and the â ffnerwalze 36 are arranged on a horizontal line. In addition to the arrangement shown but are still many design options.
- the result obtained by the feeding device 22 can be checked further downstream by means of a second measuring device 42.
- the second measuring device 42 may be designed in the same way as the measuring device 14, that is, it may have, for example, a plurality of measuring wheels 44 and a plurality of evaluation devices 46.
- control or regulating device 20 In the operation of the feed device 22, the control or regulating device 20 must therefore in addition to the local arrangement of the measuring segments or the Zuditesegmente and the respective measurement data and the distance a between measuring range and profile change range and the respective speed v of the transport device, here the conveyor belt 10, for Consider control.
- the respective feed roller 32 of the associated feed segment is driven at the right time at a certain speed and provides additional fiber or fiber flake material to the opening roll 36, which then reaches the right spot of the fiber flake mat 12 in the desired dosage.
- various flute shafts may be provided, which correspond to the number of feed segments and are fed selectively with loose fiber flakes (for example, branched off before the fiber flake feeder 2).
- the apparatus for forming a nonwoven fabric illustrated includes two feed devices 22, 76 according to the invention.
- the material dispensing device is configured as a first feeder 76.
- Both the first feeding device 76 and the second feeding device 22 substantially correspond to those in FIG Fig. 1 In this way, the material dispenser and profile changing device are formed substantially the same.
- a measuring device 14 can again be arranged between the two feed devices 76, 22, which, like the associated control or regulating device 20, has been omitted from this figure for reasons of clarity.
- control can also be dispensed with, in particular if the feed segments of the second feed device 22 are opposite the feed segments of the first feed device 76 are laterally offset, for example, by half the width of a feed segment.
- the laterally offset, segmented supply of fibrous material in the second feeder 22 can exactly compensate for the thin spots in the web 78 due to the segmented supply of fibrous material in the first feeder 76 when the operating parameters of the two feeder devices 22, 76 are set identical.
- the pre-web formed in the first feeder 76 may have a relatively uniform profile at high spatial resolution of the feeder segments, but may also have a very wavy cross-section.
- both the first feeder 76 and the second feeder 22 each consist of juxtaposed ZuInstitutsegmenten, each fed by its own roving 26 or its own fiber fleece strip, with high accuracy, a fleece 78 with the desired profile properties are formed.
- the feed device 76 or 22 does not have to be aligned transversely to the transport direction of the conveyor belt 10, but can also be aligned in the transport direction of the conveyor belt 10.
- the feeding device 76 or 22 is preferably transversely to the transport direction of the conveyor belt 10 and over the maximum width and above the fiber flake mat 12 to be laid (not shown).
- the movable feeder 76 or 22 more in the transport direction of the conveyor belt 10 and horizontally juxtaposed ZuSciencesegmente, which are controlled separately.
- the second feed device 22 is configured as a transversely movable feed device
- this arrangement succeeds in delivering substantially longitudinally oriented fibers to the conveyor belt 10 in the first feed device 76 and delivering substantially transverse oriented fibers to the conveyor belt 10 in the second feed device 22 , so that the material properties of the fiber flake mat 12 or the fleece 78 can be influenced in a targeted manner.
- fiber flake mats 12 or webs 78 can be formed, which are not only particularly uniform or are particularly precisely profiled, but also a different orientation of the fibers or fiber flakes in different areas or layers of the fiber flake mat 12 and the web 78th exhibit.
- the movable feed device 22 has a moving material reservoir or the like in order to join in the lateral deflections of the feed device 22.
- a device for dispensing felts 26 or nonwoven strips as in Fig. 1 and 2 shown, in a transversely movable feed device, only the feed device 22 including feed roller 32 can be moved transversely, while the dispenser 24 remains stationary. If present, the storage roller 28 can either be moved with the feeder 22 or remain stationary. Corresponding slack storage between said elements then provide the necessary material buffer for the transverse travel of the feeder 22nd
- FIG. 3 to 8 further embodiments of the device according to the invention are shown. In this case, for reasons of clarity, any elements measuring device 14 and control or regulating device 20 are not shown. However, it should be clear that the second supply device 22 can be controlled by the control or regulating device 20 on the basis of the measurement result of the measuring device 14, as in the previously described embodiments.
- the material dispensing device is configured again as a feed device 84 or web forming device according to the invention, which dispenses a first quantity of fiber material onto the conveyor belt 10, which serves as the basis for forming the web 78.
- the first feed device 84 has a plurality of feed rolls 102 arranged axially next to each other, one of which is assigned to a feed segment of the feed device 84.
- the width of the individual feed segments is preferably identical to the width in the previous examples.
- Each feed roller 102 is driven by its own servo motor 104. In the illustrated lateral cross-sectional view, only a feed roller 102 and a servo motor 104 can be seen.
- the fiber material is drawn in the direction of arrow A from the feed rollers 102 in a controlled manner and thus passes under the overhead trough 106 therethrough. This supports the transport of the supplied fiber material to a â ffnerwalze 108 which cooperates with the feed rollers 102 and strips individual fiber flakes or individual fibers from the feed rollers 102.
- the fiber material fed in the direction of the arrow A can be drawn in directly from a fiber flute shaft.
- the fiber material is supplied in the form of fiber slivers 26 or nonwoven strips, for example by means of in Fig. 2 shown elements for feeding the roving 26 or the nonwoven strip to the feed rollers 32 shown there. While in the example of the Fig.
- an overhead trough 106 is provided is and the fiber material is fed from the feed rollers 102 obliquely from above into the space between the feed rollers 102 and opening roller 108, this, as in Fig. 2 shown, also at any time from diagonally down. Only the relative direction of rotation between the feed rollers 102 and the opener roller 108 would then be different, since the feed rollers 102 would then move in the same direction of rotation as the opener roller 108th
- the fiber material of the roving 26 or the nonwoven strip or the fiber flakes coming from the shaft different degrees towards fiber flakes or even to single fibers, which subsequently fall down in the feeder 84.
- corresponding guide elements 110 may be provided.
- the fiber material dissolved by the opener roller 108 per feed segment finally reaches a gap between two screen rollers 112, which are preferably driven at the same speed but in the opposite direction.
- These screen rollers 112 direct the fiber material in the feeder 84, for example, with the aid of another trough 114, on the conveyor belt 10.
- the distance and the relative altitude of the two screen rollers 112 are variably adjustable.
- a pinch roller 116 may be provided which rotates at the same speed as the conveyor belt 10 and compacts the formed web 78 between itself and the conveyor belt 10. If the pinch roller 116 and the conveyor belt 10 have a higher speed than the screen rollers 112, then in the area between the screen rollers 112 and the pinch roller 116, the web 78 is stretched in the transport direction of the conveyor belt 10, which in the web 78 to an even stronger orientation of the fibers in the longitudinal direction, ie along the transport direction of the conveyor belt 10 is used.
- the profile changing device is also configured as a second feeding device 22 or as a web forming device, which has a plurality of Einzelvlies avoirsstellen.
- the structure of the second feeding device 22 is substantially identical to the structure of the first feeding device 84 and will therefore not be described in detail.
- the feeding direction of the Fiber material in the feeder 22 is in the illustrated example in the direction of arrow B.
- the individual elements which have already been described with reference to the first feeder 84, here have the following reference numerals: feed rollers 202, servomotors 204, overhead trough 206, opener roller 208, Guide elements 210, screen rollers 212, lower trough 214 and pinch roller 216.
- the second feeding device 22 shown may also be combined at any time, as with the second feeding devices 22 described in the following figures, with another material dispensing device, such as a conventional fiber flake feeder 2, as shown in FIG Fig. 1 illustrated, or a first feeder 76 from Fig. 2 ,
- the feeding device according to the invention can be used in almost every area of a device for forming a fleece or a fiber flake mat, primarily to compensate for irregularities or for the desired profile formation.
- a possible site of use is, for example, the area between carding machine and web laying machine or between web laying machine and consolidation machine. It is also conceivable to arrange more than two feed devices according to the invention in succession.
- Fig. 4 illustrated embodiment of the apparatus for forming a nonwoven is similar to the embodiment of Fig. 3 but with two differently configured feeders 84, 22.
- the fiber material in the direction of arrow A by means of individually driven, over the width of the web to be laid 78 axially juxtaposed feed rollers 102 is retracted into the first feeder 84.
- the feed rollers 102 are in this case somewhat obliquely below the opener roller 108, and as a guide element 110, a perforated plate is provided in this case.
- the two screen rollers 112 are again driven in opposite directions, wherein in the illustrated embodiment additionally suction devices 118 for sucking the screen rollers 112 are shown.
- the conveyor belt 10 is configured in the illustrated embodiment as a screen belt, which is also under-sucked by means of a suction device 120 so as to the stripped from the opener roller 108 fiber material to the desired region of the conveyor belt 10 suck.
- the left screen roller 112 is arranged closer to the conveyor belt 10, so that the lower trough 114 can be omitted.
- the second feeding device 22 in FIG Fig. 4 is configured substantially identical to the first feeding device 84.
- the fiber material is introduced in the direction of arrow B in the feeder 22.
- the suction devices for the screen rollers 212 are designated by reference numeral 218, and the suction device for sucking the conveyor belt 10 in the region of the feed device 22 is designated by reference numeral 220.
- the pinch rollers 116, 216 could be made from the embodiment Fig. 3 also be used.
- first feeder 84 and the second feeder 22 has in the catchment area (above the arrows which are to denote the falling fiber material) also a plurality of juxtaposed feed rollers 102 and a â ffnerwalze 108 (as in Fig. 8 or 9), which are not shown here anymore.
- the counter-rotating screen rollers 112 are in the case of Fig. 5 partially entangled by screen belts 122, which are guided by the screen rollers 112 down and there are guided around a respective smaller guide roller 124.
- the guide rollers 124 are disposed near the surface of the conveyor belt 10 and define a discharge gap of the first feeder 84.
- the conveyor belt 10 is again configured as a screen belt, but this time at the exit of the feeder 84, two opposing pinch rollers 116 are arranged, one above the formed web 78 and one below the upper run of the conveyor belt 10.
- the pinch rollers 116 are driven in opposite directions and run at the same speed as the conveyor belt 10.
- the second feeder 22 is in the example of the Fig. 5 again in principle identical to the first feed device 84, wherein the two rotating screen belts have the reference numeral 222 and the two lower guide rollers have been given the reference numeral 224.
- a stretching device in this case comprises an upper star roller 126 or garnished roller with a counter-pressure plate 128 opposite it, preferably spring-mounted, defining therebetween a first nip for the fiber material, and a lower star roller 130 or garnished roller and a lower, preferably resilient mounted, counter-pressure plate 132 which is opposite to the lower star roller 130 and defines with this a second nip.
- the two star rollers 126 and 130 are disposed on opposite sides of the filling channel.
- a stretching of the fiber material in the filling channel takes place when the rotational speed of the lower star roller 130 is higher than the rotational speed of the upper star roller 126.
- the speed of the lower star roller 130 preferably corresponds to the speed of the conveyor belt 10.
- By the drawing finds a stronger expression of Longitudinal orientation of the fibers instead, so that on the conveyor belt 10 finally a web 78 is deposited with more along the transport direction of the conveyor belt 10 oriented fibers.
- the shape and arrangement of the elements for stretching can of course be varied in many ways here. For example, to define each nip also a pair of nip rollers (smooth, rubberized or garnished) or star roller pair can be used.
- the second feeding device 22 described above is designed essentially identical to the first feeding device 84.
- the feeding device 22 is supplied with the fiber material in the direction of the arrow B, and which, in comparison with the embodiment of FIGS Fig. 3 newly added elements are upper star roller 226, upper platen 228, lower star roller 230, and lower platen 232.
- first feeder 84 substantially corresponds to the embodiment of Fig. 3 , wherein the two screen rollers 112 are replaced by other guiding and stretching elements.
- On the left outer edge of a screen belt 134 is arranged around a plurality of guide rollers 136 around such that there is an inclined guide surface for the fiber material defined in the direction of the conveyor belt 10. At least one of the guide rollers 136 is driven, so that the screen belt 134 moves at the same speed.
- the screen belt 134 as in Fig. 7 shown, with a suction device 138 under-sucked.
- the inclined guide surface of the screen belt 134 opposite an upper disk roller 140 is arranged, which is driven at the same speed as the screen belt 134 and together with the screen belt 134 defines a first clamping point for the transported fiber material.
- a star roller 142 is arranged, which in turn forms a second clamping point for the fiber material with the conveyor belt 10. Subsequent to the star roller 142, a further pinch roller 144 may be provided for compressing the web 78.
- a stretching device is provided when the speed of the star roller 142, which corresponds to the speed of the conveyor belt 10, is greater than the speed of the screen belt 134 and pinch roller 140.
- the longitudinal orientation the fibers of the web 78 reinforced.
- the second feeding device 22 of the Fig. 7 is essentially identical to the first feeder 84 constructed.
- the compared with Fig. 3 newly added elements are the screen belt 234, the idler rollers 236, the suction device 238, the pinch roller 240, the star roller 242 and the optional lower pinch roller 244.
- Feed rollers 102, 202 shown are each provided with sets whose teeth are directed in the direction of rotation of the feed rollers 102, 202 forward. It is also possible or even preferred that the teeth of the sets of feed rollers 102, 202 are directed in the direction of rotation to the rear. It can also be used completely different trimmings.
- the apparatus for forming a nonwoven fabric comprises a second feeding device 22, the lower part, from the screen rollers 212 down, the embodiment of Fig. 3 equivalent.
- the catchment area is changed in contrast.
- the fiber material is in this embodiment above the feed rollers 202 in the direction of arrow B and then conveyed by the opener roller 208, which runs in the same direction of rotation as the feed rollers 202, along the overhead trough 206.
- the overhead trough 206 may also be configured in two parts. After a half turn of the opener roller 208, the fiber material drops into the discharge chute and finally passes between the screen rollers 212.
- an air flow generator 250 can be used, which from the top generates an air flow at the top Opener roll 208 passes (aerodynamic web formation).
- the first feeding device 84 of the Fig. 8 substantially corresponds to the delivery device 84 Fig. 3 ,
- an air flow from above which supports the detachment of the fiber material from the opener roller 108 down.
- Such a measure can also be used in all embodiments of the Fig. 3 to 7 be applied.
- the pre-web formed in the first feeder 84 may have a relatively uniform profile, but may also have a very wavy cross-section.
- both the material dispensing device and the profile changing device each consist of a feed device according to the invention with juxtaposed Zuzhousegmenten, which are preferably each fed by its own roving 26 or its own fiber fleece strip, with high accuracy, a web 78 with the desired profile properties are formed.
- the delivery segments of the delivery device 22 may be laterally offset from the delivery segments of the delivery device 84, for example, by half the width of a delivery segment.
- each feed roller 102, 202 has been described as individually controllable, axially juxtaposed elements, of which each feed roller 102, 202 is associated with a feed segment of the feeder 84 and the feeder 22, respectively. But there are many more elements of the Fig. 3 to 8 be shown segmented, ie juxtaposed and individually controllable present, each feed segment is assigned a respective segment of these elements. This applies, for example, to the screen rollers 112, 212, the screen belts 122, 222, the star rollers 126, 130, 226, 230 and the screen belts 134, 234 and the clamping rollers 140, 240 and star rollers 142, 242 opposite thereto.
- rollers, belts and troughs used and the relative geometric arrangement of the individual parts in the illustrated embodiments can be modified by the person skilled in the art to the respective intended use.
- the distance between the rollers and belts in the embodiments of Fig. 3 to 7 is not true to scale and also variably adjustable.
- the described embodiments and the schematic sketches are intended to represent only the basic principle of the inventive idea.
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Description
Die Erfindung betrifft eine ZufĂźhrvorrichtung zum ZufĂźhren von aufgelĂśsten Fasern oder Faserflocken auf eine Transportvorrichtung.The invention relates to a feeding device for feeding dissolved fibers or fiber flakes onto a transport device.
Bei der Erzeugung von Faservliesen werden ßblicherweise zunächst Faserflocken aus einem Faserflockenspeiser an eine Transportvorrichtung abgegeben, die sie in Form einer Faserflockenmatte in einer ersten Alternative zu einem Florerzeuger, vorzugsweise einer Krempel, in einer zweiten Alternative direkt zu einem aerodynamischen Vliesbildner, oder in einer dritten Alternative direkt zu einer Verfestigungsmaschine, beispielsweise einer Nadelmaschine, weitertransportiert.In the production of fiber webs, fiber flocks are usually first delivered from a Faserflockenspeiser to a transport device, which in the form of a Faserflockenmatte in a first alternative to a pile producer, preferably a carding, in a second alternative directly to an aerodynamic web forming agent, or in a third alternative directly to a solidification machine, such as a needle machine, further transported.
In der ersten Alternative wird der im Florerzeuger erzeugte Flor (der auch als ein- oder zweilagiges Vlies bezeichnet werden kann) anschlieĂend einem Vliesleger zugefĂźhrt, der aus der Florbahn durch Kreuzlegen ein mehrlagiges Vlies legt. Dieses mehrlagige Vlies kann anschlieĂend durch geeignete Verfestigungsmaschinen, beispielsweise durch Vemadeln, verfestigt werden. Insgesamt ist es meist gewĂźnscht, ein Faservlies mit sehr hoher GleichmäĂigkeit zu erzeugen. Hierzu existieren an verschiedenen Stellen der Anlage entsprechende EingriffsmĂśglichkeiten. Beispielsweise kann im Bereich zwischen Faserflockenspeiser und Florerzeuger z.B. das Gewicht der Faserflockenmatte mittels einer Bandwaage gemessen und auf dieser Basis die Einzugsgeschwindigkeit des Florerzeugers derart gesteuert werden, dass immer eine identische Menge an Fasermaterial pro Zeitintervall in den Florerzeuger gelangt.In the first alternative, the pile produced in the pile producer (which can also be referred to as a single-layer or two-layer nonwoven) is then fed to a fleece layering machine which places a multilayer fleece from the pile web by cross-lapping. This multi-ply web can then be consolidated by suitable consolidation machines, for example by needling. Overall, it is usually desirable to produce a nonwoven fabric with very high uniformity. For this purpose, there are corresponding intervention possibilities at different points of the plant. For example, in the area between fiber flake feeders and pile producers, e.g. the weight of the fiber flake mat measured by means of a belt weigher and based on this the feed rate of the pile generator are controlled so that always passes an identical amount of fiber material per time interval in the pile generator.
Allerdings kann eine solche Bandwaage lediglich die durchschnittliche Masse der Faserflockenmatte, verteilt Ăźber die Breite der Transportvorrichtung und eine gewisse Länge in Transportrichtung, ermitteln. Deshalb wird durch dieses Ausgleichsverfahren nur eine grobe VergleichmäĂigung des in den Florerzeuger eintretenden Faserflockenstroms geschaffen, während unterschiedliche Flächengewichte der Faserflockenmatte Ăźber die Breite der Faserflockenmatte akzeptiert werden mĂźssen.However, such a belt weigher can determine only the average mass of the fiber flake mat, distributed over the width of the transport device and a certain length in the transport direction. Therefore, only a coarse homogenization of the fiber flake stream entering the pile fabricator is provided by this balancing process, while different basis weights of the fiberglass mat across the width of the fiberglass mat must be accepted.
Bei der genannten zweiten und dritten Alternative der Vliesbildung hat man bislang durch verschiedene stationsinterne Einstellungen und konstruktive Details versucht, die Abgabe der Faserflocken zu einer Faserflockenmatte im Faserflockenspeiser und die Abgabe der aufgelĂśsten Fasern zu einem Faservlies in der aerodynamischen Vliesbildungsmaschine Ăźber die Länge und Breite der Faserflockenmatte bzw. des Vlieses mĂśglichst gleichmäĂig zu gestalten. Die Ergebnisse sind aber oft verbesserungswĂźrdig.In the aforementioned second and third alternative web formation has been tried by various station internal settings and structural details, the delivery of the fiber flakes to a fiber flake mat in the fiber flake feeder and the delivery of the dissolved fibers to form a nonwoven fabric in the aerodynamic nonwoven forming machine over the length and width of the fiber flake mat or the fleece as evenly as possible. The results are often in need of improvement.
Neben der VergleichmäĂigung von Faserflockenmatte oder Vlies kann es in anderen Anwendungsfällen auch vorteilhaft sein, wenn die Faserflockenmatte oder das Vlies ein vorbestimmtes ungleichmäĂiges Querprofil oder Längsprofil aufweist.In addition to the homogenization of fiber flake mat or nonwoven fabric, it may also be advantageous in other applications if the fiber flake mat or the fleece has a predetermined uneven transverse profile or longitudinal profile.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine ZufĂźhrvorrichtung zu schaffen, die an verschiedenen Stellen einer Vliesbildungsanlage eingesetzt werden kann und eine hinsichtlich Ort und Menge genaue Dosierung des Fasermaterials ermĂśglicht.The present invention has for its object to provide a feeding device that can be used at various points of a web forming system and allows accurate location and quantity dosage of the fiber material.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelĂśst.This object is solved by the features of claim 1.
Erfindungsgemäà weist die ZufĂźhrvorrichtung zum ZufĂźhren von aufgelĂśsten Fasern oder Faserflocken auf eine Transportvorrichtung, die zum Weitertransport des gebildeten Vlieses oder der Faserflockenmatte in einer Transportrichtung dient, eine Mehrzahl von einzeln ansteuerbaren Einzugswalzen und mindestens eine mit den Einzugswalzen zusammenwirkende angetriebene Ăffnerwalze auf. Die ZufĂźhrvorrichtung umfasst dabei eine Mehrzahl von horizontal nebeneinander angeordneten ZufĂźhrsegmenten derart, dass jedem ZufĂźhrsegment eine eigene Einzugswalze zugeordnet ist. Auf diese Weise lässt sich Fasermaterial gezielt auf die Transportvorrichtung zufĂźhren, sei es als Ausgangsmaterial bei der Bildung eines Vlieses oder einer Faserflockenmatte, oder im Sinne einer nachträglichen Anpassung des Profils eines vorliegenden Fasergrundprodukts.According to the invention, the feeding device for supplying dissolved fibers or fiber flakes to a transport device which serves for further transport of the formed web or fiber flake mat in a transport direction, a plurality of individually controllable feed rollers and at least one cooperating with the feed rollers driven opener roller. The feeding device comprises a plurality of horizontally juxtaposed feed segments such that each feed segment is assigned its own feed roller. In this way, fiber material can be targeted to the transport device, be it as a starting material in the formation of a nonwoven or a fiber flake mat, or in the sense of a subsequent adaptation of the profile of an existing fiber base product.
Bevorzugt wird hierbei jede Einzugswalze mit einer eigenen Faserlunte oder einem eigenen Faservliesstreifen gespeist. Dadurch wird die Materialmenge je ZufĂźhrsegment besonders exakt dosierbar.Preferably, each draw-in roller is fed with its own roving or its own fiber fleece strip. As a result, the amount of material per feed segment is particularly precisely metered.
Bevorzugt ist jedem Zufßhrsegment eine Spendevorrichtung zur Lagerung und Abgabe einer Faserlunte oder eines Faservliesstreifens zugeordnet derart, dass jede Einzugswalze die von der zugehÜrigen Spendevorrichtung bereitgestellte Faserlunte oder den Faservliesstreifen abzieht. Auf diese Weise wird schon bei der Einspeisung des Dosiermaterials in die Zufßhrvorrichtung eine hohe räumliche AuflÜsung erzielt.Preferably, each dispensing segment is associated with a dispensing device for storing and dispensing a roving or a nonwoven strip such that each feed roller removes the roving provided by the associated dispenser or the nonwoven strip. In this way, a high spatial resolution is achieved even when feeding the dosing into the feeder.
Alternativ zur oben genannten Spendevorrichtung kann die ZufĂźhrvorrichtung als Materialreservoir fĂźr die Einzugswalzen auch einen Faserflockenschacht aufweist.As an alternative to the above-mentioned dispensing device, the feed device can also have a fiber flute shaft as the material reservoir for the feed rollers.
Die Ăśrtliche AuflĂśsung der ZufĂźhrung der aufgelĂśsten Fasern oder Faserflocken wird im Wesentlichen durch die Breite jedes ZufĂźhrsegments bestimmt. Hierbei ist bevorzugt, dass jedes ZufĂźhrsegment eine Breite von zwischen 5 und 100 mm, vorzugsweise zwischen 15 und 30 mm, besonders bevorzugt zwischen 20 und 25 mm, aufweist.The local dissolution of the feed of the dissolved fibers or fiber flakes is determined essentially by the width of each feed segment. It is preferred that each feed segment has a width of between 5 and 100 mm, preferably between 15 and 30 mm, particularly preferably between 20 and 25 mm.
In einer ersten konkreten Ausgestaltung der ZufĂźhrvorrichtung weist jede Einzugswalze eine Garnitur mit bezĂźglich einer Drehrichtung der Einzugswalze rĂźckwärts abragenden Zähnen auf, wobei die Ăffnerwalze in derselben Drehrichtung wie die Einzugswalzen angetrieben ist und eine Garnitur mit bezĂźglich dieser Drehrichtung vorwärts abragenden Zähnen aufweist. Hierbei wird der Ăffnerwalze das Fasermaterial von schräg unten zugefĂźhrt.In a first concrete embodiment of the feeding device, each feed roller on a set with respect to a direction of rotation of the feed roller rearwardly projecting teeth, wherein the opening roller is driven in the same direction of rotation as the feed rollers and has a set with respect to this direction forward protruding teeth. Here, the opener roller, the fiber material is fed from below obliquely.
Alternativ kann in einer zweiten Ausgestaltung der ZufĂźhrvorrichtung jede Einzugswalze eine Garnitur mit bezĂźglich einer Drehrichtung der Einzugswalze rĂźckwärts abragenden Zähnen aufweisen, wobei die Ăffnerwalze in einer zweiten Drehrichtung angetrieben ist, die der Drehrichtung der Einzugswalzen entgegengesetzt ist, und eine Garnitur mit bezĂźglich der zweiten Drehrichtung vorwärts abragenden Zähnen aufweist. Hierbei wird der Ăffnerwalze das Fasermaterial von schräg oben zugefĂźhrt, von der Ăffnerwalze Ăźbernommen und in einem Halbkreis gefĂźhrt, bis es in den Abgabeschacht fallen kann.Alternatively, in a second embodiment of the feeder, each pickup roller may have a clothing with teeth projecting rearwardly with respect to a direction of rotation of the pickup roller, the opener roller being driven in a second rotational direction opposite to the direction of rotation of the pickup rollers, and a clothing forward with respect to the second rotational direction has protruding teeth. In this case, the opener roller is fed to the fiber material from obliquely above, taken over by the opener roller and guided in a semicircle until it can fall into the discharge shaft.
Bevorzugt ist genau eine Ăffnerwalze vorgesehen, die sich quer zur Transportrichtung der Transportvorrichtung und horizontal Ăźber alle ZufĂźhrsegmente erstreckt. Somit kann die Ăffnerwalze das von jeder Einzugswalze bereitgestellte Fasermaterial gleichzeitig von dieser abnehmen und anschlieĂend an der gewĂźnschten Position des Vlieses abgeben.Preferably, exactly one opener roller is provided which extends transversely to the transport direction of the transport device and horizontally over all feed segments. Thus, the opener roller can simultaneously remove the fiber material provided by each draw-in roller and then deliver it to the desired position of the fleece.
Das Querprofil des zu erzeugenden Vlieses oder der Faserflockenmatte ist am besten beeinflussbar, wenn die ZufĂźhrsegmente in einer Richtung quer zu einer Transportrichtung der Transportvorrichtung nebeneinander angeordnet sind.The cross profile of the nonwoven to be produced or the fiber flake mat is best influenced if the feed segments are arranged side by side in a direction transverse to a transport direction of the transport device.
Zur weiteren ErhÜhung der Ürtlichen AuflÜsung der Zufßhrung des Fasermaterials kann jedem Zufßhrsegment mindestens eine weitere Art von Walze oder FÜrderband zugeordnet sein, wobei die Walzen oder FÜrderbänder derselben Art aller Zufßhrsegmente in einer Richtung quer zu einer Transportrichtung der Transportvorrichtung nebeneinander angeordnet sind und getrennt voneinander ansteuerbar sind.To further increase the local resolution of the supply of the fiber material, at least one further type of roller or conveyor belt can be assigned to each feed segment, wherein the rollers or conveyor belts of the same type of feed segments in one Direction transverse to a transport direction of the transport device are arranged side by side and are controlled separately from each other.
Vorzugsweise ist jede Einzugswalze mit einem Servomotor angetrieben. Die Verwendung eines eigenen Servomotors fßr jede Einzugswalze gewährleistet die unabhängige Ansteuerung jeder Einzugswalze und somit eine hochgenaue Profilanpassung des Vlieses oder der Faserflockenmatte mittels der einzeln angesteuerten Zufßhrsegmente.Preferably, each feed roller is driven by a servomotor. The use of a separate servo motor for each pickup roller ensures the independent control of each feed roller and thus a high-precision profile adjustment of the web or the fiber flake mat by means of individually controlled Zufßhrsegmente.
Wenn eine Spendevorrichtung fĂźr eine Faserlunte oder einen Faservliesstreifen als Materialreservoir verwendet wird, ist vorzugsweise zwischen der Spendevorrichtung und der Einzugswalze jedes ZufĂźhrsegments eine Speicherwalze angeordnet ist, die sich quer zur Transportrichtung der Transportvorrichtung und horizontal Ăźber alle ZufĂźhrsegmente erstreckt und um die eine Windung jeder von der Spendevorrichtung bereitgestellten Faserlunte oder jedes Faservliesstreifens gewickelt ist. Auf diese Weise mĂźssen die Einzugswalzen das Fasermaterial nicht direkt von der Spendevorrichtung abnehmen, sondern kĂśnnen dies an einer Ăśrtlich fest definierten Stelle auf der Speicherwalze tun.When a dispenser for a roving or a nonwoven strip is used as the material reservoir, a storage roller is preferably arranged between the dispenser and the pickup roller of each feed segment, extending transversely to the transport direction of the transport device and horizontally across all the feed segments, and around the one turn of each of Dispenser provided fiber roving or each nonwoven strip is wound. In this way, the feed rollers do not have to remove the fiber material directly from the dispenser, but can do so at a fixed location on the storage roller.
Eine besonders bevorzugte Ausgestaltung der vorliegenden Erfindung liegt auch dann vor, wenn zwei erfindungsgemäĂe ZufĂźhrvorrichtungen zu einer Vliesbildungsanlage hintereinander geschaltet sind.A particularly preferred embodiment of the present invention is also present when two feed devices according to the invention are connected in series with one another to form a web formation machine.
Dabei ist es bevorzugt, wenn die ZufĂźhrsegmente der zwei ZufĂźhrvorrichtungen dieselbe Breite aufweisen und die ZufĂźhrsegmente der zweiten, stromab angeordneten ZufĂźhrvorrichtung bezĂźglich der ZufĂźhrsegmente der ersten ZufĂźhrvorrichtung versetzt sind, vorzugsweise um die Hälfte der Breite der ZufĂźhrsegmente. Auf diese Weise lässt sich durch den doppelten FaserzufĂźhrprozess ein besonders gleichmäĂiges Vlies erzeugen.In this case, it is preferred if the feed segments of the two feed devices have the same width and the feed segments of the second, downstream feed device are offset with respect to the feed segments of the first feed device, preferably by half the width of the feed segments. In this way, can be produced by the double FaserzufĂźhrprozess a particularly uniform fleece.
Die Vliesbildungsanlage kann zwischen der ersten und der zweiten, stromab angeordneten ZufĂźhrvorrichtung eine Messvorrichtung zum Messen des Flächengewichts des Vlieses Ăźber dessen quer zur Transportrichtung der Transportvorrichtung verlaufende Breite in einem Messbereich der Transportvorrichtung zur Ermittlung eines Querprofils und Längsprofils des Vlieses aufweisen, und auĂerdem eine Steuer- oder Regeleinrichtung, die darauf ausgerichtet ist, die zweite ZufĂźhrvorrichtung auf Basis der Ergebnisse der Messvorrichtung derart zu steuern, dass die zweite ZufĂźhrvorrichtung zur VergleichmäĂigung des Vlieses aufgelĂśste Fasern oder Faserflocken auf ermittelte DĂźnnstellen des Vlieses zufĂźhrt, oder dass die zweite ZufĂźhrvorrichtung zur Bildung eines gewĂźnschten ungleichmäĂigen Querprofils und/oder Längsprofils des Vlieses mit DĂźnnstellen und Dickstellen aufgelĂśste Fasern oder Faserflocken gezielt zufĂźhrt. Dadurch wird die Vliesbildung noch weiter verfeinert.The nonwoven forming system may have, between the first and the second downstream arranged feeding device, a measuring device for measuring the basis weight of the nonwoven over its transverse width to the transport direction of the transport device width in a measuring range of the transport device for determining a cross profile and longitudinal profile of the nonwoven, and also a control or control means adapted to control the second feeding device based on the results of the measuring device so that the second feeding device for homogenizing the nonwoven feeds dissolved fibers or fiber flakes onto detected thin spots of the web, or in that the second feeding device supplies in a targeted manner fibers or fiber flakes dissolved in order to form a desired uneven transverse profile and / or longitudinal profile of the nonwoven fabric with thin spots and thick places. As a result, the web formation is further refined.
Weitere Merkmale und Vorteile der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung unter Bezugnahme auf die Zeichnungen.
- Fig. 1
- ist eine seitliche Querschnittsansicht einer AusfĂźhrungsform einer Vorrichtung zur Bildung einer vergleichmäĂigten oder profilierten Faserflockenmatte mit einer ersten. AusfĂźhrungsform einer erfindungsgemäĂen ZufĂźhrvorrichtung, die hier als Profiländerungsvorrichtung einer zuvor erzeugten Faserflockenmatte verwendet wird;
- Fig. 2
- ist eine seitliche Querschnittsansicht einer Vliesbildungsanlage mit zwei hintereinander geschalteten erfindungsgemäĂen ZufĂźhrvorrichtungen der AusfĂźhrungsform aus
Fig. 1 ; - Fig. 3
- ist eine seitliche Querschnittsansicht einer Vliesbildungsanlage mit zwei hintereinander geschalteten erfindungsgemäĂen ZufĂźhrvorrichtungen einer weiteren AusfĂźhrungsform;
- Fig. 4
- ist eine seitliche Querschnittsansicht einer Vliesbildungsanlage mit zwei hintereinander geschalteten erfindungsgemäĂen ZufĂźhrvorrichtungen einer weiteren AusfĂźhrungsform;
- Fig. 5
- ist eine seitliche Querschnittsansicht einer Vliesbildungsanlage mit zwei hintereinander geschalteten erfindungsgemäĂen ZufĂźhrvorrichtungen einer weiteren AusfĂźhrungsform;
- Fig. 6
- ist eine seitliche Querschnittsansicht einer Vliesbildungsanlage mit zwei hintereinander geschalteten erfindungsgemäĂen ZufĂźhrvorrichtungen einer weiteren AusfĂźhrungsform;
- Fig. 7
- ist eine seitliche Querschnittsansicht einer Vliesbildungsanlage mit zwei hintereinander geschalteten erfindungsgemäĂen ZufĂźhrvorrichtungen einer weiteren AusfĂźhrungsform; und
- Fig. 8
- ist eine seitliche Querschnittsansicht einer Vliesbildungsanlage mit zwei hintereinander geschalteten erfindungsgemäĂen ZufĂźhrvorrichtungen einer weiteren AusfĂźhrungsform.
- Fig. 1
- FIG. 12 is a side cross-sectional view of one embodiment of a device for forming a uniformized or profiled fiber flake mat having a first one. FIG. Embodiment of a feeding device according to the invention, which is used here as a profile changing device of a previously produced Faserflockenmatte;
- Fig. 2
- is a side cross-sectional view of a web forming system with two successive feeders according to the invention of the embodiment from
Fig. 1 ; - Fig. 3
- is a side cross-sectional view of a web forming system with two successively connected feed devices according to the invention of a further embodiment;
- Fig. 4
- is a side cross-sectional view of a web forming system with two successively connected feed devices according to the invention of a further embodiment;
- Fig. 5
- is a side cross-sectional view of a web forming system with two successively connected feed devices according to the invention of a further embodiment;
- Fig. 6
- is a side cross-sectional view of a web forming system with two successively connected feed devices according to the invention of a further embodiment;
- Fig. 7
- is a side cross-sectional view of a web forming system with two successively connected feed devices according to the invention of a further embodiment; and
- Fig. 8
- is a side cross-sectional view of a web forming system with two successive feeders according to the invention another embodiment.
In
Der Faserflockenspeiser 2 gibt Faserflocken auf ein Austragsband 4 ab, das umlaufend ausgebildet ist und sich um mehrere Umlenkwalzen 6, von denen in der Zeichnung lediglich eine dargestellt ist, gespannt ist.The Faserflockenspeiser 2 are fiber flakes on a
Zur Verdichtung des aus dem Faserflockenspeiser 2 ausgegebenen Faserflockenmaterials kann auĂerdem eine obere Walze 8 im Ausgangsbereich des Faserflockenspeisers 2 angeordnet sein, welche gegensinnig zum Austragsband 4 angetrieben ist und somit zusammen mit dem Austragsband 4 die Faserflockenmatte in Richtung eines umlaufenden Transportbandes 10 vorwärts bewegt und verdichtet. Im dargestellten Beispielsfall bilden das Austragsband 4 und das Transportband 10 zusammen eine Transportvorrichtung, die fĂźr den Weitertransport der Faserflockenmatte 12 sorgt.For compacting the fiber flake material output from the fiber flake feeder 2, an
Im hier dargestellten Beispiel verbindet die Transportvorrichtung 4, 10 den Faserflockenspeiser 2 und den Florerzeuger 3. Ebenso ist es denkbar, dass das Transportband 10 direkt unterhalb des Faserflockenspeisers 2 verläuft (siehe die weiteren Figuren) und somit das Abzugsband 4 entfällt, oder dass die Transportvorrichtung noch andere als die gezeigten Abschnitte und Elemente 4, 10 aufweist.In the example shown here, the
Auf der Transportvorrichtung 4, 10 wird das Faserflockenmaterial als Faserflockenmatte 12 mit einer variablen Geschwindigkeit v in Richtung des Einzugsbereichs des Florerzeugers 3 und somit in Transportrichtung vorwärtsbewegt. Das Transportband 10 kann auch eine Bandwaage aufweisen, welche ein durchschnittliches Gewicht der Faserflockenmatte 12 in einem flächigen Wiegebereich ermittelt, der eine bestimmte Länge aufweist und sich Ăźber die gesamte Breite der Faserflockenmatte 12 erstreckt. Auf dieser Basis kann die Transportgeschwindigkeit v der Transportvorrichtung und somit gleichzeitig die Einzugsgeschwindigkeit des Florerzeugers 3 entsprechend gesteuert werden, so dass immer ein im Wesentlichen gleichmäĂiger Massenstrom an Faserflockenmaterial den Florerzeuger 3 pro Zeitintervall erreicht.On the
AuĂerdem ist eine Messvorrichtung 14 vorgesehen, die das Flächengewicht der Faserflockenmatte 12 Ăźber ihre quer zur Transportrichtung verlaufende Breite in einem Messbereich der Transportvorrichtung 4, 10 misst, um somit das Querprofil und aufgrund der Bewegung der Transportvorrichtung 4, 10 auch das Längsprofil der Faserflockenmatte 12, insbesondere DĂźnnstellen und/oder Dickstellen der Faserflockenmatte 12, zu ermitteln. Die Messvorrichtung 14 weist mehrere Messsegmente quer zur Transportrichtung der Faserflockenmatte 12 auf und fĂźhrt in jedem Messsegment eine eigene Messung durch. Auf diese Weise kĂśnnen DĂźnnstellen bzw. Dickstellen zweidimensional, also in Längs- und in Querrichtung, ermittelt werden. Die Breite eines derartigen Messsegments liegt zwischen 5 und 100 mm, vorzugsweise zwischen 15 und 30 mm, mehr bevorzugt zwischen 20 und 25 mm. Eine derartige Messvorrichtung kann entweder zusätzlich zur Bandwaage eingesetzt werden oder auch deren Funktion Ăźbernehmen.In addition, a measuring
In der in
Alternativ hierzu kann die Messvorrichtung 14 auch als eine andere Form einer mechanischen Messvorrichtung ausgestaltet sein. Ebenso ist es mÜglich, die Messvorrichtung 14 als eine radiometrische Messvorrichtung auszugestalten. In diesem Fall ist entweder in jedem Messsegment eine radiometrische Messsonde angeordnet, welche ßber radiometrische Messungen das Flächengewicht der Faserflockenmatte 12 im jeweiligen Messsegment bestimmt, oder es ist eine einzige radiometrische Messsonde vorgesehen, welche quer ßber die Breite der Faserflockenmatte 12 verfahrbar ist und kontinuierlich oder in bestimmten Messabständen das Flächengewicht der Faserflockenmatte 12 aufnimmt. Ebenso ist ein kombinierter Einsatz von sowohl einer radiometrischen und als auch einer mechanischen Messvorrichtung 14 mÜglich.Alternatively, the measuring
Die Ergebnisse der Messvorrichtung 14 werden an eine Steuer- oder Regeleinrichtung 20 Ăźbermittelt, welche eine ZufĂźhrvorrichtung 22, die bei dem hier vorliegenden Einsatzzweck auch als Profiländerungsvorrichtung bezeichnet werden kann, auf Basis der Ergebnisse der Messvorrichtung 14 steuert. Die ZufĂźhrvorrichtung 22 ist in einem Profiländerungsbereich der Transportvorrichtung 4, 10 stromab des Messbereichs angeordnet. Die Steuer- oder Regeleinrichtung 20 steuert die ZufĂźhrvorrichtung 22 derart, dass die ZufĂźhrvorrichtung 22 entweder zur VergleichmäĂigung der Faserflockenmatte 12 aufgelĂśste Fasern oder Faserflocken auf die ermittelten DĂźnnstellen der Faserflockenmatte 12 zufĂźhrt, und/oder dass die ZufĂźhrvorrichtung 22 zur Bildung eines gewĂźnschten ungleichmäĂigen Querprofils und/oder Längsprofils der Faserflockenmatte 12 mit DĂźnnstellen und Dickstellen aufgelĂśste Fasern oder Faserflocken gezielt zufĂźhrt.The results of the measuring
Das geregelte ZufĂźhren von aufgelĂśsten Fasern oder Faserflocken erfolgt durch separate Ansteuerung mehrerer quer zur Transportrichtung und horizontal nebeneinander angeordneter ZufĂźhrsegmente der ZufĂźhrvorrichtung 22. Die Breite eines derartigen ZufĂźhrsegments entspricht vorzugsweise der Breite der Messsegmente. Sie liegt somit im Bereich von zwischen 5 und 100 mm, vorzugsweise zwischen 15 und 30 mm, mehr bevorzugt zwischen 20 und 25 mm.The controlled feeding of dissolved fibers or fiber flakes is effected by separate control of a plurality of feed segments of the
In der in
In der in
Jedem ZufĂźhrsegment ist auĂerdem eine mit einem Servomotor 34 angetriebene, sich ebenfalls in derselben Drehrichtung drehende Einzugswalze 32 zugeordnet. Die Einzugswalze 32 zieht die jeweilige von der zugehĂśrigen Spendevorrichtung 24 bereitgestellte Faserlunte 26 oder den Faservliesstreifen ab, entweder unter Zwischenschaltung der Speicherwalze 28 oder direkt. Obwohl jedes ZufĂźhrsegment eine eigene Einzugswalze 32 aufweist, ist aufgrund der Hintereinanderreihung in der Zeichnung nur eine Einzugswalze 32 zu sehen. Jede Einzugswalze 32 weist vorzugsweise eine Garnitur mit bezĂźglich der Drehrichtung rĂźckwärts abragenden Zähnen auf.Each feed segment is also associated with a driven with a
Ein besonderer Vorteil der Zwischenschaltung der Speicherwalze 28 liegt darin, dass die Speicherwalze 28 unter denjenigen Faserlunten 26 oder Faservliesstreifen durchrutscht, die lediglich lose um sie gewickelt sind. Dies trifft demnach auf alle Zufßhrsegmente zu, in denen die Einzugswalze 32 gerade gar nicht angetrieben ist oder langsamer läuft als die Speicherwalze 28. Erst wenn eine Einzugswalze 32 schneller läuft als die Speicherwalze 28, wird die entsprechende Wicklung der Faserlunte 26 oder des Faservliesstreifens um die Speicherwalze 28 straff gezogen und das Material entsprechend eingezogen.A particular advantage of the interposition of the
Die Einzugswalzen 32 kĂśnnen alle mĂśglichen Geschwindigkeitsprofile aufweisen, einschlieĂlich eines Plateau-Profils (z.B. in Form eines Pyramidenstumpfes) mit gleich hohen, aber unterschiedlich langen Plateaus je nach gewĂźnschter Abgabemenge an Fasermaterial.The
Die von den Einzugswalzen 32 mitbewegte Faserlunte 26 oder der Faservliesstreifen wird zu einer Ăffnerwalze 36 transportiert, die vorzugsweise einstĂźckig ausgebildet ist und sich quer zur Transportrichtung und horizontal Ăźber alle ZufĂźhrsegmente erstreckt. Ebenso kann jedoch eine separate Ăffnerwalze pro ZufĂźhrsegment vorliegen.The co-moving from the
Die Ăffnerwalze 36 ist im dargestellten Beispielsfall in derselben Drehrichtung angetrieben wie die Einzugswalzen 32. AuĂerdem weist die Ăffnerwalze 36 vorzugsweise eine Garnitur mit bezĂźglich der Drehrichtung vorwärts abragenden Zähnen auf, wodurch sie das verdrillte oder verdichtete Faserflockenmaterial der Faserlunte 26 bzw. des Faservliesstreifens besonders gut Ăśffnet, so dass lose Faserflocken oder sogar feine Fasern abgelĂśst werden. Diese fallen in einen entsprechenden Abgabeschacht 38 und von dort aus gefĂźhrt auf die Faserflockenmatte 12. Es kĂśnnen auch mehrere Abgabeschächte 38 nebeneinander fĂźr die verschiedenen ZufĂźhrsegmente vorgesehen sein.The
Falls gewĂźnscht, kann im Bereich des Abgabeschachtes 38 noch eine Reinigungswalze 40 angeordnet sein, welche an den Zähnen der Ăffnerwalze 36 anhaftende Faserflocken von dieser abstreift.If desired, a cleaning
Im dargestellten Beispielsfall sind die Mittelpunkte der Einzugswalzen 32 und der Ăffnerwalze 36 auf einer horizontalen Linie angeordnet. Neben der dargestellten Anordnung sind aber noch viele GestaltungsmĂśglichkeiten gegeben.In the illustrated example case, the centers of the
Falls gewßnscht, kann das Ergebnis, welches durch die Zufßhrvorrichtung 22 erzielt wurde, weiter stromab nochmals mittels einer zweiten Messvorrichtung 42 ßberprßft werden. Die zweite Messvorrichtung 42 kann ebenso gestaltet sein wie die Messvorrichtung 14, kann also beispielsweise mehrere Messräder 44 und mehrere zugehÜrige Auswerteeinrichtungen 46 aufweisen.If desired, the result obtained by the
Ebenso ist es mĂśglich, hinter der zweiten Messvorrichtung 42 eine weitere ZufĂźhrvorrichtung 22 anzuordnen fĂźr den Fall, dass die gewĂźnschte GleichmäĂigkeit oder das gewĂźnschte Querprofil oder Längsprofil der Faserflockenmatte 12 in einem Schritt nicht erreicht wird.It is also possible to arrange a
Beim Betrieb der Zufßhrvorrichtung 22 muss die Steuer- oder Regeleinrichtung 20 somit neben der Ürtlichen Anordnung der Messsegmente bzw. der Zufßhrsegmente und den jeweiligen Messdaten auch den Abstand a zwischen Messbereich und Profiländerungsbereich sowie die jeweilige Geschwindigkeit v der Transportvorrichtung, hier des Transportbandes 10, fßr die Steuerung berßcksichtigen.In the operation of the
Bei der Profiländerung wird dann die jeweilige Einzugswalze 32 des zugehĂśrigen ZufĂźhrsegments zum richtigen Zeitpunkt mit einer bestimmten Geschwindigkeit angetrieben und liefert zusätzliches Faser- oder Faserflockenmaterial an die Ăffnerwalze 36, das dann in der gewĂźnschten Dosierung an die richtige Stelle der Faserflockenmatte 12 gelangt.In the profile change then the
Es kommen auch noch andere Ausgestaltungen der Zufßhrvorrichtung in Betracht. Beispielsweise kÜnnen verschiedene Flockenschächte vorgesehen sein, die der Anzahl von Zufßhrsegmenten entsprechen und gezielt mit losen Faserflocken (beispielsweise abgezweigt vor dem Faserflockenspeiser 2) gespeist werden.There are also other embodiments of the feeding into consideration. For example, various flute shafts may be provided, which correspond to the number of feed segments and are fed selectively with loose fiber flakes (for example, branched off before the fiber flake feeder 2).
Beispiele weiterer mĂśglicher AusfĂźhrungsformen der Erfindung werden im Folgenden beschrieben.Examples of other possible embodiments of the invention are described below.
In der in
Das in der ersten ZufĂźhrvorrichtung 76 gebildete Vor-Vlies kann bei hoher räumlicher AuflĂśsung der ZufĂźhrsegmente ein relativ gleichmäĂiges Profil aufweisen, es kann aber auch ein sehr welliges Querprofil zeigen. Jedenfalls kann mit der hier dargestellten Vorrichtung, bei der sowohl die erste ZufĂźhrvorrichtung 76 als auch die zweite ZufĂźhrvorrichtung 22 jeweils aus nebeneinander liegenden ZufĂźhrsegmenten besteht, die jeweils durch eine eigene Faserlunte 26 oder einen eigenen Faservliesstreifen gespeist werden, mit hoher Genauigkeit ein Vlies 78 mit den gewĂźnschten Profileigenschaften gebildet werden.The pre-web formed in the
Die Zufßhrvorrichtung 76 oder 22 muss grundsätzlich nicht quer zur Transportrichtung des Transportbandes 10, sondern kann auch in Transportrichtung des Transportbandes 10 ausgerichtet sein. In einem solchen Fall ist die Zufßhrvorrichtung 76 oder 22 vorzugsweise quer zur Transportrichtung des Transportbandes 10 und ßber die maximale Breite sowie oberhalb der zu legenden Faserflockenmatte 12 verfahrbar (nicht dargestellt). Auch hier weist die verfahrbare Zufßhrvorrichtung 76 oder 22 mehrere in Transportrichtung des Transportbandes 10 und horizontal nebeneinander angeordnete Zufßhrsegmente auf, die getrennt voneinander ansteuerbar sind.In principle, the
Wenn z.B. nur die zweite ZufĂźhrvorrichtung 22 als quer verfahrbare ZufĂźhrvorrichtung ausgestaltet ist, gelingt es mit dieser Anordnung, in der ersten ZufĂźhrvorrichtung 76 im Wesentlichen längsorientierte Fasern an das Transportband 10 abzugeben, und in der zweiten ZufĂźhrvorrichtung 22 im Wesentlichen querorientierte Fasern an das Transportband 10 abzugeben, so dass die Materialeigenschaften der Faserflockenmatte 12 oder des Vlieses 78 gezielt beeinflusst werden kĂśnnen. Auf diese Weise kĂśnnen Faserflockenmatten 12 oder Vliese 78 gebildet werden, die nicht nur besonders gleichmäĂig sind bzw. besonders exakt profiliert sind, sondern auch noch eine unterschiedliche Orientierung der Fasern bzw. Faserflocken in verschiedenen Bereichen bzw. Schichten der Faserflockenmatte 12 bzw. des Vlieses 78 aufweisen.If, for example, only the
Wichtig hierbei ist, dass die verfahrbare Zufßhrvorrichtung 22 ein mitfahrendes Materialreservoir oder ähnliches aufweist, um die seitlichen Auslenkungen der Zufßhrvorrichtung 22 mitzumachen. Im Falle der Verwendung einer Vorrichtung zur Abgabe von Faserlunten 26 oder Faservliesstreifen, wie in
In
In
Je nach Abstand zwischen den Einzugswalzen 102 und der Ăffnerwalze 108 sowie der Geschwindigkeitsdifferenz zwischen den Einzugswalzen 102 und der schneller laufenden Ăffnerwalze 108 Ăśffnet die Ăffnerwalze 108 das Fasermaterial der Faserlunte 26 oder des Faservliesstreifens bzw. die aus dem Schacht stammenden Faserflocken unterschiedlich stark hin zu Faserflocken oder sogar zu Einzelfasern, die anschlieĂend in der ZufĂźhrvorrichtung 84 nach unten fallen.Depending on the distance between the
Zur Definition der Fallstrecke kĂśnnen entsprechende Leitelemente 110 vorgesehen sein. Das pro ZufĂźhrsegment von der Ăffnerwalze 108 aufgelĂśste Fasermaterial gelangt schlieĂlich in einen Zwischenraum zwischen zwei Siebwalzen 112, die vorzugsweise mit derselben Geschwindigkeit, aber in entgegengesetzter Richtung angetrieben sind. Diese Siebwalzen 112 leiten das Fasermaterial in der ZufĂźhrvorrichtung 84, beispielsweise unter Zuhilfenahme einer weiteren Mulde 114, auf das Transportband 10. Der Abstand und die relative HĂśhenlage der beiden Siebwalzen 112 sind dabei variabel einstellbar.For the definition of the fall distance corresponding
Im Ausgangsbereich der Zufßhrvorrichtung 84 kann eine Klemmwalze 116 vorgesehen sein, die sich mit derselben Geschwindigkeit wie das Transportband 10 dreht und das gebildete Vlies 78 zwischen sich und dem Transportband 10 verdichtet. Wenn die Klemmwalze 116 und das Transportband 10 eine hÜhere Geschwindigkeit als die Siebwalzen 112 aufweisen, so wird im Bereich zwischen den Siebwalzen 112 und der Klemmwalze 116 das Vlies 78 in Transportrichtung des Transportbandes 10 verstreckt, was im Vlies 78 zu einer noch stärkeren Ausrichtung der Fasern in Längsrichtung, d.h. längs der Transportrichtung des Transportbandes 10 dient.In the exit area of the
Die Profiländerungsvorrichtung ist ebenfalls als zweite ZufĂźhrvorrichtung 22 bzw. als Vliesbildner ausgestaltet, die eine Vielzahl von Einzelvliesbildungsstellen aufweist. Der Aufbau der zweiten ZufĂźhrvorrichtung 22 ist hierbei im Wesentlichen identisch zum Aufbau der ersten ZufĂźhrvorrichtung 84 und wird daher nicht näher beschrieben. Die ZufĂźhrrichtung des Fasermaterials in die ZufĂźhrvorrichtung 22 ist im dargestellten Beispielsfall in Richtung des Pfeils B. Die einzelnen Elemente, welche bereits unter Bezugnahme auf die erste ZufĂźhrvorrichtung 84 beschrieben wurden, haben hier nun die folgenden Bezugszeichen: Einzugswalzen 202, Servomotoren 204, Ăberkopfmulde 206, Ăffnerwalze 208, Leitelemente 210, Siebwalzen 212, untere Mulde 214 und Klemmwalze 216.The profile changing device is also configured as a
Die in
SchlieĂlich ist es auch mĂśglich, die in
Die erfindungsgemäĂe ZufĂźhrvorrichtung kann in nahezu jedem Bereich einer Vorrichtung zur Bildung eines Vlieses oder einer Faserflockenmatte eingesetzt werden, in erster Linie zum Ausgleich von UnregelmäĂigkeiten oder zur gewĂźnschten Profilbildung. Ein mĂśglicher Einsatzort ist neben den dargestellten Orten beispielsweise der Bereich zwischen Krempel und Vliesleger oder zwischen Vliesleger und Verfestigungsmaschine. Auch eine Hintereinanderreihung von mehr als zwei erfindungsgemäĂen ZufĂźhrvorrichtungen ist denkbar.The feeding device according to the invention can be used in almost every area of a device for forming a fleece or a fiber flake mat, primarily to compensate for irregularities or for the desired profile formation. In addition to the locations shown, a possible site of use is, for example, the area between carding machine and web laying machine or between web laying machine and consolidation machine. It is also conceivable to arrange more than two feed devices according to the invention in succession.
Die in
Die zweite ZufĂźhrvorrichtung 22 in
Die in
Die gegensinnig angetriebenen Siebwalzen 112 sind im Fall der
Die zweite ZufĂźhrvorrichtung 22 ist im Beispielsfall der
Die in
Die in
Die in
Eine Streckvorrichtung liegt dann vor, wenn die Geschwindigkeit der Sternwalze 142, die der Geschwindigkeit des Transportbandes 10 entspricht, grĂśĂer ist als die Geschwindigkeit von Siebband 134 und Klemmwalze 140. Auf diese Weise wird, wie in den AusfĂźhrungsformen weiter oben bereits detailliert beschrieben, die Längsausrichtung der Fasern des Vlieses 78 verstärkt. Auch bei dieser Ausgestaltung existieren wieder vielfältige MĂśglichkeiten der Ausbildung der einzelnen Komponenten, die im Rahmen des Wissens des Fachmanns liegen.A stretching device is provided when the speed of the
Die zweite ZufĂźhrvorrichtung 22 der
Die in
Die in
Die erste ZufĂźhrvorrichtung 84 der
Das in der ersten ZufĂźhrvorrichtung 84 gebildete Vor-Vlies kann ein relativ gleichmäĂiges Profil aufweisen, es kann aber auch ein sehr welliges Querprofil zeigen. Jedenfalls kann mit der hier dargestellten Vorrichtung, bei der sowohl die Materialabgabevorrichtung als auch die Profiländerungsvorrichtung jeweils aus einer erfindungsgemäĂen ZufĂźhrvorrichtung mit nebeneinander liegenden ZufĂźhrsegmenten besteht, die vorzugsweise jeweils durch eine eigene Faserlunte 26 oder einen eigenen Faservliesstreifen gespeist werden, mit hoher Genauigkeit ein Vlies 78 mit den gewĂźnschten Profileigenschaften gebildet werden. Gegebenenfalls kĂśnnen die ZufĂźhrsegmente der ZufĂźhrvorrichtung 22 gegenĂźber den ZufĂźhrsegmenten der ZufĂźhrvorrichtung 84 seitlich versetzt sein, beispielsweise um die Hälfte der Breite eines ZufĂźhrsegments.The pre-web formed in the
In den AusfĂźhrungsformen der
Alle in den Figuren als Siebelemente dargestellten Bleche, Bänder und Walzen kĂśnnen hintersaugt sein oder lediglich passiv Luft durch die Ăffnungen ableiten. Teilweise kĂśnnen diese Elemente auch durch vollflächige, äquivalente Elemente ersetzt werden.All of the sheets, strips and rollers shown as sieve elements in the figures can be back-sucked or passively pass air through the openings. In part, these elements can also be replaced by full-surface, equivalent elements.
Ebenso sind die Art und Ausgestaltung der verwendeten Walzen, Bänder und Mulden und die relative geometrische Anordnung der Einzelteile in den dargestellten Ausfßhrungsformen vom Fachmann auf den jeweiligen Einsatzzweck modifizierbar. Insbesondere der Abstand zwischen den Walzen und Bändern in den Ausfßhrungsformen der
SchlieĂlich kĂśnnen die Elemente der einzelnen AusfĂźhrungsformen der ZufĂźhrvorrichtungen 22, 76 und 84 nahezu beliebig miteinander kombiniert werden.Finally, the elements of the individual embodiments of the
Claims (15)
- Supply device (22, 76, 84) for delivering opened fibres or flocked fibres to a transport device (4, 10) which serves for the further transport of a formed fleece (78) or flocked fibre mat (12) in a transport direction wherein the supply device (22, 76, 84) has at least one driven infeed roller (32, 102, 202) and at least one driven opening roller (36, 108, 208) which interacts with the infeed roller (32, 102, 202), characterised in that the supply device (22, 76, 84) has a plurality of supply segments arranged horizontally next to one another, and a plurality of individually controllable infeed rollers (32, 102, 202) such that each supply segment is assigned its own infeed roller (32, 102, 202).
- Supply device (22, 76, 84) according to claim 1 characterised in that each infeed roller (32, 102, 202) is supplied with its own fibre roving (26) or a suitable fibre fleece strip.
- Supply device (22, 76, 84) according to claim 2 characterised in that each supply segment is assigned a dispensing device (24) for storing and delivering a fibre roving (26) or a fibre fleece strip so that each infeed roller (32, 102, 202) draws off the fibre fleece strip or the fibre roving (26) which is prepared by the associated dispensing device (24).
- Supply device (22, 76, 84) according to claim 1 characterised in that it has a flocked fibre shaft as the material reservoir for the infeed rollers (32, 102, 202).
- Supply device (22, 76, 84) according to one of the preceding claims characterised in that each supply segment has a width of between 5 and 100 mm, preferably between 15 and 30 mm, more especially between 20 and 25 mm.
- Supply device (22, 76, 84) according to one of the preceding claims characterised in that each infeed roller (32, 102, 202) has a fitting with teeth which project backwards relative to the rotational direction of the infeed roller (32, 102, 202), wherein the opening roller (36, 108, 208) is driven in the same rotational direction as the infeed rollers (32, 102, 202) and has a fitting with teeth projecting forwards relative to this rotational direction.
- Supply device (22, 76, 84) according to one of claims 1 to 5 characterised in that each infeed roller (32, 102, 202) has a fitting with teeth which project backwards relative to a rotational direction of the infeed roller (32) wherein the opening roller (36, 108, 208) is driven in a second rotational direction which is opposite the rotational direction of the infeed rollers (32, 102, 202), and has a fitting with teeth which project forwards relative to the second rotational direction.
- Supply device (22, 76, 84) according to one of the preceding claims characterised in that just one opening roller (36, 108, 208) is provided which extends crosswise to a transport direction of the transport device (4, 10) and horizontally over all the supply segments.
- Supply device (22, 76, 84) according to one of the preceding claims characterised in that the supply segments are arranged side by side in a direction crosswise to the transport direction of the transport device (4, 10).
- Supply device (22, 76, 84) according to one of the preceding claims characterised in that each supply segment is assigned at least one further type of rollers (112, 126, 130, 140, 142, 212, 226, 230, 240, 242) or conveyor belt (122, 134, 222, 234), wherein the rollers (112, 126, 130, 140, 142, 212, 226, 230, 240, 242) or conveyor belts (122, 134, 222, 234) of the same kind of all the supply segments are arranged side by side in one direction crosswise to the transport direction of the transport device (4, 10), and can be controlled separately from one another.
- Supply device (22, 76, 84) according to one of the preceding claims characterised in that each infeed roller (32, 102, 202) is driven by a servo motor (34, 10, 204).
- Supply device (22, 76, 84) according to claim 3 characterised in that between the dispensing device (24) and the infeed roller (32, 102, 202) of each supply segment is a storage roller (28) which extends crosswise to the transport direction of the transport device (4, 10) and horizontally over all the supply segments, and about which is would one winding of each fibre roving (26) prepared by the dispensing device (24), or of each fibre fleece strip.
- Fleece formation unit with two supply devices (22, 76, 84) according to one of the preceding claims connected in series.
- Fleece formation unit according to claim 13 characterised in that the supply segments of the two supply devices (22, 76, 84) have the same width and the supply segments of the second supply device (22) arranged downstream are off-set relative to the supply segments of the first supply device (76, 84), preferably by half the width of the supply segments.
- Fleece formation unit according to claim 13 or 14 characterised in that it has between the first supply device (76, 84) and the second sup0ply device (22) a measuring device (14) for measuring the surface weight of the fleece (78) across its width running crosswise to the transport direction of the transport device (4, 10), in one measuring region of the transport device (4, 10) in order to determine a cross profile and longitudinal profile of the fleece (78), and that it moreover has a control or regulating device (20), which is set up to control the second supply device (22) on the basis of the results of the measuring device (14) so that the second supply device (22) supplies opened fibres or flocked fibres to identified thin spots of the fleece (78) in order to even out the fleece (78), or that the second supply device (22) supplies opened fibres or flocked fibres purposefully to form a desired non-uniform cross profile and/or longitudinal profile of the fleece (78) with thin spots and thick spots.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12199625.0A EP2695976B1 (en) | 2012-08-06 | 2012-12-28 | Supply device for delivering opened fibres or flocked fibres to a transport device |
EP20130170105 EP2695980A1 (en) | 2012-08-06 | 2013-05-31 | Feeding device for fibers or flocks |
CN201310337870.3A CN103572511B (en) | 2012-08-06 | 2013-08-05 | Device for forming woven pile fabrics or fiber bundle cushions |
CN201310337279.8A CN103572506A (en) | 2012-08-06 | 2013-08-05 | Feed device for fibers or flocks |
US13/959,985 US20140033479A1 (en) | 2012-08-06 | 2013-08-06 | Feed Device for Fibers or Fiber Flocks |
US13/959,953 US9187852B2 (en) | 2012-08-06 | 2013-08-06 | Feed device for supplying individualized fibers or fiber flocks to a transport device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12179382.2A EP2695982A1 (en) | 2012-08-06 | 2012-08-06 | Device and method for equalizing or providing a profile to a mat of flocked fibers |
EP12199625.0A EP2695976B1 (en) | 2012-08-06 | 2012-12-28 | Supply device for delivering opened fibres or flocked fibres to a transport device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2695976A1 EP2695976A1 (en) | 2014-02-12 |
EP2695976B1 true EP2695976B1 (en) | 2015-02-25 |
Family
ID=46967910
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12179382.2A Withdrawn EP2695982A1 (en) | 2012-08-06 | 2012-08-06 | Device and method for equalizing or providing a profile to a mat of flocked fibers |
EP12199625.0A Active EP2695976B1 (en) | 2012-08-06 | 2012-12-28 | Supply device for delivering opened fibres or flocked fibres to a transport device |
EP12199616.9A Active EP2695983B1 (en) | 2012-08-06 | 2012-12-28 | Device and method for forming an even or profiled fleece or an even or profiled flocked fibre mat |
EP12199629.2A Active EP2695984B1 (en) | 2012-08-06 | 2012-12-28 | Device for forming a fleece or a flocked fibre mat |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12179382.2A Withdrawn EP2695982A1 (en) | 2012-08-06 | 2012-08-06 | Device and method for equalizing or providing a profile to a mat of flocked fibers |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12199616.9A Active EP2695983B1 (en) | 2012-08-06 | 2012-12-28 | Device and method for forming an even or profiled fleece or an even or profiled flocked fibre mat |
EP12199629.2A Active EP2695984B1 (en) | 2012-08-06 | 2012-12-28 | Device for forming a fleece or a flocked fibre mat |
Country Status (4)
Country | Link |
---|---|
US (3) | US9187852B2 (en) |
EP (4) | EP2695982A1 (en) |
CN (3) | CN103572510B (en) |
ES (3) | ES2560009T3 (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2695982A1 (en) * | 2012-08-06 | 2014-02-12 | Oskar Dilo Maschinenfabrik KG | Device and method for equalizing or providing a profile to a mat of flocked fibers |
ES2531582T3 (en) * | 2012-11-05 | 2015-03-17 | Toho Tenax Europe Gmbh | Procedure for manufacturing fibrous preforms |
FR3020643B1 (en) * | 2014-05-05 | 2019-06-14 | Hubert Hergeth | TRAINING BY LEVEUSE |
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US10434687B2 (en) | 2014-12-17 | 2019-10-08 | Sikorsky Aircraft Corporation | Composite laminate tooling and method of forming a composite part using the tooling |
DE102015107373A1 (en) * | 2015-05-11 | 2016-11-17 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Method and device for spreading a fleece in the course of the production of material plates and a material plate |
DE102015107372A1 (en) * | 2015-05-11 | 2016-11-17 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Method and device for spreading a fleece in the course of the production of material plates and a material plate |
CN105088429B (en) * | 2015-09-11 | 2017-04-12 | ĺéĺ¸čçźćä¸ćéĺ Źĺ¸ | Woolen web corner conveying device |
DE102015014301A1 (en) * | 2015-11-06 | 2017-05-11 | Hubert Hergeth | Saugsammelband |
EP3400325B1 (en) * | 2016-01-04 | 2022-01-26 | Uster Technologies AG | Process and detection unit to monitor a fiber flow |
EP3216433B1 (en) * | 2016-03-08 | 2018-11-21 | The Procter and Gamble Company | Carded nonwoven fibrous web and use in absorbent articles |
EP3450604B1 (en) | 2017-09-01 | 2023-08-09 | Oskar Dilo Maschinenfabrik KG | Method for forming a profiled, solidified nonwoven fabric product |
EP3450603B1 (en) | 2017-09-01 | 2020-04-29 | Oskar Dilo Maschinenfabrik KG | Method for forming a profiled non-woven fabric |
EP3710212A2 (en) | 2017-11-13 | 2020-09-23 | Bbf Ip B.V. | Method and device for producing a ribbon and a thread of bamboo fiber |
NL2019892B1 (en) * | 2017-11-13 | 2019-05-17 | Bambooder Biobased Fiber B V | Method and device for producing a ribbon of bamboo fiber |
CN107745997B (en) * | 2017-11-14 | 2023-07-07 | çťçşŹçşşçťćşć˘°čĄäť˝ćéĺ Źĺ¸ | Sliver conveying device unit |
DK180089B1 (en) * | 2018-11-21 | 2020-04-17 | Campen Machinery A/S | A former head and an apparatus comprising such a former head |
EP3699334B1 (en) | 2019-02-21 | 2023-08-09 | Oskar Dilo Maschinenfabrik KG | Feeding device of a non-woven fabric formation system |
EP3739089B1 (en) | 2019-05-16 | 2022-08-10 | Oskar Dilo Maschinenfabrik KG | Feeding device of a non-woven fabric formation system |
DE102019005316A1 (en) * | 2019-07-30 | 2021-02-04 | Hubert Hergeth | V mat |
Family Cites Families (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3067855A (en) * | 1954-10-22 | 1962-12-11 | Changewood Corp | Mechanism for feeding fibrous elements |
US2822028A (en) * | 1956-01-16 | 1958-02-04 | Allwood Inc | Method of manufacturing wood particle boards |
US3177275A (en) * | 1960-11-10 | 1965-04-06 | Ivan G Brenner | Method and means for producing fibrous articles |
CH490526A (en) * | 1969-07-09 | 1970-05-15 | Rieter Ag Maschf | Process for the continuous dosing of fiber material for presentation to spinning machines |
DE1954181A1 (en) * | 1969-10-28 | 1971-05-06 | Ritter Franz Josef | Method and device for terminating the fuel-air mixture in an internal combustion engine |
JPS502183B1 (en) * | 1970-12-22 | 1975-01-24 | ||
DE2506058C3 (en) * | 1975-02-13 | 1978-06-01 | Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt | Sliver opening device for an open-end spinning device |
JPS5311975A (en) * | 1976-07-20 | 1978-02-02 | Hokushin Gohan Kk | Process and apparatus for making synthetic board with uniform strength |
DE3141537C2 (en) * | 1981-10-20 | 1984-03-08 | Hergeth KG Maschinenfabrik und Apparatebau, 4408 DĂźlmen | Device for regulating the supply of spun material to a processing machine |
DE3336517A1 (en) * | 1983-10-07 | 1985-04-25 | Hergeth Hollingsworth GmbH, 4408 DĂźlmen | DINING DEVICE FOR CARD, CRAWLING AND THE LIKE |
EP0161323A1 (en) * | 1984-04-16 | 1985-11-21 | Bison-Werke Bähre & Greten GmbH & Co. KG | Method of and apparatus for obtaining a predetermined weight per unit area in a fibre layer |
US4568581A (en) * | 1984-09-12 | 1986-02-04 | Collins & Aikman Corporation | Molded three dimensional fibrous surfaced article and method of producing same |
US4663225A (en) * | 1986-05-02 | 1987-05-05 | Allied Corporation | Fiber reinforced composites and method for their manufacture |
DE3811677A1 (en) * | 1988-04-07 | 1989-10-19 | Baehre & Greten | DEVICE FOR COMPARISONING THE AREA WEIGHT DISTRIBUTION OF FLEECE |
DE3913997A1 (en) * | 1989-02-14 | 1990-08-23 | Rieter Ag Maschf | METERING METHOD AND DEVICE FOR DELIVERING PRESETABLE QUANTITIES OF FIBER FLAKES |
EP0404982B1 (en) * | 1989-06-29 | 1995-02-15 | GrĂźnzweig + Hartmann AG | Process and apparatus for producing non-woven mineral wool, in particular rock wool |
IE64769B1 (en) * | 1989-06-29 | 1995-09-06 | Saint Gobain Isover | Mineral fibres collection process and device |
US5041260A (en) * | 1989-10-30 | 1991-08-20 | Ford Motor Company | Resin transfer molding method |
DD290448A5 (en) * | 1989-12-18 | 1991-05-29 | Fi Fuer Textiltechnologie,De | METHOD FOR PRODUCING AND DESIGNING FIBER FLOORS OR nonwovens |
US5257438A (en) * | 1990-02-14 | 1993-11-02 | Maschinenfabrik Rieter Ag | Dosing method and apparatus for the delivery of predeterminate quantities of fiber flocks per unit of time |
US5192387A (en) * | 1990-11-05 | 1993-03-09 | The C.A. Lawton Company | Method of making preforms |
FI94967C (en) * | 1991-09-18 | 1995-11-27 | Yhtyneet Paperitehtaat Oy | Method and apparatus for dry forming a web of long-fiber material |
JPH07138861A (en) * | 1993-11-15 | 1995-05-30 | Nippon Electric Glass Co Ltd | Method for producing glass fiber chopped strand mat and device therefor |
US5737806A (en) * | 1994-05-26 | 1998-04-14 | Trutzschler Gmbh & Co. Kg | Apparatus for treating fiber and producing a fiber lap therefrom |
DE19541818A1 (en) * | 1995-11-09 | 1997-05-15 | Baehre & Greten | Spreading device for non-woven fabric production |
DE19608828A1 (en) * | 1996-03-07 | 1997-09-18 | Fritz Stahlecker | Open end spinner fibre separation roller |
US5694758A (en) * | 1996-09-12 | 1997-12-09 | Cimtec Control Solutions, Inc. | Variable-speed trash belt for open-end spinning machine and method |
ITMI981618A1 (en) * | 1998-07-14 | 2000-01-14 | Marzoli & C Spa | EQUALIZER DEVICE AND PROCEDURE OF THE FEEDING OF THE FIBERS IN THE MATTRESS TO A CARD |
DE19919447B4 (en) * | 1999-04-29 | 2005-06-02 | Erko Textilmaschinen Gmbh | Device for feeding fibers |
DE19923418B4 (en) * | 1999-05-21 | 2010-12-02 | TRĂźTZSCHLER GMBH & CO. KG | Apparatus for producing a fiber flake web having at least one substantially vertical shaft of rectangular cross-section |
FR2794475B1 (en) * | 1999-06-01 | 2001-08-17 | Asselin | METHOD FOR CONTROLLING THE PROFILE OF A NONWOVEN TABLECLOTH AND PRODUCTION FACILITY THEREFOR |
CN1281914A (en) * | 2000-05-12 | 2001-01-31 | éŠćąéš | Method for controlling weight of carded wadding |
DE10142488A1 (en) * | 2001-08-30 | 2003-03-20 | Schlafhorst & Co W | Disintegration device for an open-end spinning device |
US20040195717A1 (en) * | 2001-09-03 | 2004-10-07 | Mitsunori Kataoka | Method and apparatus for forming fiber aggregate |
DE10249905A1 (en) * | 2002-10-22 | 2004-05-06 | Wilhelm Stahlecker Gmbh | Set ring for an opening roller of an open-end spinning device |
DK200300661A (en) * | 2003-05-01 | 2004-11-02 | Dan Web Holding As | Method and apparatus for drying a tissue |
JP4194880B2 (en) * | 2003-05-20 | 2008-12-10 | ăă¨ăżç´Ąçšć Şĺźäźç¤ž | Fiber molded body and method for producing the same |
DE10351365A1 (en) * | 2003-10-16 | 2005-06-02 | Saurer Gmbh & Co. Kg | Feeding trough for a sliver opening device of an open-end spinning device |
ES2324784T3 (en) * | 2003-11-07 | 2009-08-14 | Formfiber Denmark Aps | A FIBER DISTRIBUTION DEVICE FOR DRY CONFORMATION OF A FIBER PRODUCT. |
DE102004012236A1 (en) * | 2004-03-12 | 2005-09-22 | TrĂźtzschler GmbH & Co KG | Device on a spinning preparation machine, e.g. Flake feeder, with a feeding device |
US7157033B2 (en) * | 2004-09-29 | 2007-01-02 | Kimberly-Clark Worldwide, Inc. | Method and apparatus for scarfing fibrous substrates |
DE102004062649C5 (en) * | 2004-12-21 | 2013-06-06 | Kronotec Ag | Process for the production of a wood fiber insulation board or mats and wood fiber insulation boards or mats produced by this process |
BRPI0607944A2 (en) * | 2005-02-21 | 2011-02-01 | Rieter Ag Maschf | flake feed and flake store |
EP1887113A1 (en) * | 2006-08-10 | 2008-02-13 | Oskar Dilo Maschinenfabrik KG | Method and device for feeding a fibrous web to a processing machine |
EP2251466A3 (en) * | 2007-06-25 | 2011-04-06 | Oskar Dilo Maschinenfabrik KG | Feed device for flock and method for feeding fibres or flock |
WO2009084056A1 (en) * | 2007-12-31 | 2009-07-09 | Marzoli S.P.A. | Axial opener for the treatment of fiber tufts |
CN102884231B (en) * | 2010-03-08 | 2016-02-24 | çšĺč¨ĺéçťé ĺ¸ćéĺ Źĺ¸ | For measuring the apparatus and method of the weight of the reticular fibre material of continuous-flow |
DE102011016343C5 (en) * | 2010-06-02 | 2015-09-03 | Fagus-Grecon Greten Gmbh Und Co Kg | Method for adjusting the basis weight of bulk material scattered on a conveyor belt |
CN201762546U (en) * | 2010-07-29 | 2011-03-16 | ĺąąä¸čąč缼ĺć çşşçťé ćéĺ Źĺ¸ | Longitudinal-weight uniformity online detector for non-woven fabric production |
EP2695982A1 (en) * | 2012-08-06 | 2014-02-12 | Oskar Dilo Maschinenfabrik KG | Device and method for equalizing or providing a profile to a mat of flocked fibers |
-
2012
- 2012-08-06 EP EP12179382.2A patent/EP2695982A1/en not_active Withdrawn
- 2012-12-28 EP EP12199625.0A patent/EP2695976B1/en active Active
- 2012-12-28 EP EP12199616.9A patent/EP2695983B1/en active Active
- 2012-12-28 EP EP12199629.2A patent/EP2695984B1/en active Active
- 2012-12-28 ES ES12199616.9T patent/ES2560009T3/en active Active
- 2012-12-28 ES ES12199629.2T patent/ES2534209T3/en active Active
- 2012-12-28 ES ES12199625.0T patent/ES2533211T3/en active Active
-
2013
- 2013-08-05 CN CN201310337203.5A patent/CN103572510B/en active Active
- 2013-08-05 CN CN201310337870.3A patent/CN103572511B/en active Active
- 2013-08-05 CN CN201310337279.8A patent/CN103572506A/en active Pending
- 2013-08-06 US US13/959,953 patent/US9187852B2/en active Active
- 2013-08-06 US US13/959,965 patent/US9003609B2/en active Active
- 2013-08-06 US US13/959,985 patent/US20140033479A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CN103572510B (en) | 2016-05-11 |
US9003609B2 (en) | 2015-04-14 |
US9187852B2 (en) | 2015-11-17 |
EP2695984A1 (en) | 2014-02-12 |
ES2560009T3 (en) | 2016-02-17 |
US20140033479A1 (en) | 2014-02-06 |
CN103572511A (en) | 2014-02-12 |
CN103572511B (en) | 2017-04-12 |
US20140034399A1 (en) | 2014-02-06 |
CN103572506A (en) | 2014-02-12 |
US20140033480A1 (en) | 2014-02-06 |
CN103572510A (en) | 2014-02-12 |
EP2695983B1 (en) | 2015-12-23 |
ES2534209T3 (en) | 2015-04-20 |
EP2695982A1 (en) | 2014-02-12 |
EP2695976A1 (en) | 2014-02-12 |
EP2695984B1 (en) | 2015-03-04 |
EP2695983A1 (en) | 2014-02-12 |
ES2533211T3 (en) | 2015-04-08 |
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