EP3447175B1 - Distributeur de voile et procédé de distribution de voile - Google Patents

Distributeur de voile et procédé de distribution de voile Download PDF

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Publication number
EP3447175B1
EP3447175B1 EP18193837.4A EP18193837A EP3447175B1 EP 3447175 B1 EP3447175 B1 EP 3447175B1 EP 18193837 A EP18193837 A EP 18193837A EP 3447175 B1 EP3447175 B1 EP 3447175B1
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EP
European Patent Office
Prior art keywords
laying
belt
deflection
woven fabric
carriage
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EP18193837.4A
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German (de)
English (en)
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EP3447175A1 (fr
Inventor
Joachim BINNIG
Eberhard HÄBERLE
Steffen HARTUNG
Rudolf Kuhn
Andreas Meier
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Hi Tech Textile Holding GmbH
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Hi Tech Textile Holding GmbH
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Publication of EP3447175A1 publication Critical patent/EP3447175A1/fr
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00—Lap-forming devices not integral with machines specified above
    • 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

Definitions

  • the invention relates to a fleece layer and a fleece laying method with the features in the preamble of the main claim of the method and device.
  • Such a fleece layer is from EP 1 828 453 B1 known. It is designed as a so-called tape layer and has two main carriages (upper carriage and laying carriage) as well as two laying tapes that are guided to the main carriage via pulleys.
  • the superstructure has a belt deflection for both laying belts.
  • One of the laying belts is designed as a feed belt to which a fiber web is transferred on the input side of the fleece layer.
  • the feed belt with the web of fibers lying on it is deflected at the belt deflection by 180 ° in the opposite direction over two rollers, a single straight band section of the laying belt being formed between the two rollers on the belt deflection.
  • the opposing band is also deflected at the band deflection, a single straight band section of the opposing band being formed.
  • These two straight band sections of the two laying bands are directed obliquely downwards and run parallel, with the pile being held and guided on both sides in the clamping connection between these two band sections.
  • the DE 295 18 587 U1 and the EP 1 136 600 A1 also show non-woven layers with such a belt deflection on the upper carriage with two deflection points for the feed belt with the pile on top.
  • the EP 1 367 166 A1 shows a fleece layer with two laying belts and a belt deflection on the upper carriage.
  • the pile is detached from the feeding tape at the tape deflection and guided and deflected separately over a single rotating and rear-sucked deflection roller, with the tape freed from the pile being deflected in a separate tape loop with a very large deflection angle at the separation point.
  • the non-generic JP S56-26011 A shows a crushing device with which a web is crushed by slipping between parallel conveyor belts and thereby roughened and thickened.
  • the conveyor belts are guided over stationary conveyor rollers.
  • the previously known fleece layers are limited in their performance, in particular in the possible passage speed of the pile. This is especially the case with very light and sensitive fiber webs.
  • the invention solves this problem with the features in the main claim of the method and device.
  • the belt deflection has three or more deflection points for the one laying belt or feed belt.
  • the laying belt or feed belt has at the three or more deflection points in each case a deflection angle ⁇ , ⁇ , ⁇ of less than 90 °.
  • the fleece layer with the claimed belt deflection and the fleece laying process have the advantage that the fiber web can be guided better and more gently and transported over the belt deflection. In addition, higher throughput speeds of the fiber web are possible than in the prior art.
  • first and second and possibly further straight band sections with a corresponding number of three or more deflection points on the band deflection has the advantage that the fiber web can be guided better at the critical points.
  • the three or more deflection points reduce the deflection angle compared to the prior art, which is also advantageous for guiding and holding the pile.
  • the ribbon and pile deflection can take place gradually and therefore more gently in several steps.
  • the last straight band section at the end of the band deflection can already have an inclination in the direction opposite to the feed direction, wherein in this band section the pile can be guided by the laying bands on both sides with a clamping connection.
  • the claimed fleece layer can be designed for very high belt and pile speeds. For this purpose, training as a co-rotating layer with a main carriage moving in the same direction is advantageous.
  • the pile can be fed from the upper carriage, the laying carriage on a direct and straight path without any further diversions and can be deposited by the laying carriage on a haul-off device.
  • the fleece layer can also have a tensioning device or tape length compensation device, which enables the main carriages and their kinematics to be decoupled. As a result, the weight per unit area of the laid fleece can be influenced and possibly changed via the laying width and / or the length of the fleece.
  • the fleece layer can have a buffer function to compensate for fluctuating infeed speeds of the batt.
  • the claimed fleece layer can have the following design features individually or in combination.
  • the deflection points on the belt deflection can be formed by deflection rollers.
  • the one laying belt or feed belt can have two or more straight belt sections with different orientations at the belt deflection.
  • the straight belt sections of the one laying belt or feed belt can be arranged between the deflection points, in particular between deflection rollers.
  • the first tape section in the feed direction of the one laying tape or feed belt can be directed obliquely downwards in the feed direction and the second or last tape section of the one laying tape or feed belt can be directed obliquely downwards counter to the feed direction.
  • the first deflection angle ⁇ and the last, in particular the third deflection angle ⁇ of the one laying belt or feed belt can each be greater than the mean, in particular the second deflection angle ⁇ .
  • the first deflection angle ⁇ can be between 55 ° and 70 °, preferably approximately 63 °.
  • the second deflection angle ⁇ can be between 40 ° and 55 °, preferably approximately 46 °.
  • the third and last deflection angle ⁇ can be between 65 ° and 75 °, preferably approximately 71 °.
  • the belt deflection for the other laying belt or counter belt can have three or more deflection rollers.
  • the other laying belt or counter-belt can have two or more straight belt sections with different orientations at the belt deflection.
  • the upper or first straight belt sections of both laying belts can have different orientations and run towards one another at an angle.
  • the second or last straight band sections of the two laying bands can be closely adjacent and oriented essentially in the same direction.
  • the second or last straight band sections of both laying bands can run parallel to one another or conically to one another at an acute angle.
  • the superstructure can have a pile guide with several sections at the belt deflection, in which the fiber pile is first guided on one side and then on both sides.
  • a first open guide section of the pile guide can be formed between the first straight tape sections of both laying tapes, the fiber pile being guided on one side on one laying tape or feed tape.
  • a subsequent closed guide section of the pile guide can be formed between the second or last straight tape sections of both laying tapes, the fiber pile being guided on both sides in the clamping connection.
  • the main carriages of the web layer can be arranged movably parallel to each other and independently driven and controlled.
  • the fleece layer can have controlled belt drives for the rotating drive of the laying belts.
  • the fleece layer can have a tensioning device, in particular with an auxiliary carriage arrangement, for the laying belts, which is coupled to the main carriage.
  • the laying belts can be guided in parallel in the area between the main carriages in a single straight section and clamp the batt (9) between them.
  • the fleece layer can have a controlled take-off device, in particular a take-off belt, for the deposited, multi-layer fleece formed from the batt.
  • the fleece layer can be connected downstream of a pile forming device, in particular a card or card.
  • the fleece layer can be connected upstream of a fleece bonding device, in particular a needle loom.
  • the invention relates to a fleece layer (1) and a fleece laying method.
  • the invention also relates to a fiber treatment plant with a fleece layer (1) and other plant components.
  • the fleece layer (1) is used to panel a fed fiber web (9) to form a multi-layer fleece (10).
  • the fleece layer (1) has for this purpose in the embodiment of Figure 1 two main carriages (2,3), namely a first main carriage or upper carriage (2) and a second main carriage or laying carriage (3), and two endless laying belts (6,7) each guided in a loop over both main carriages (2,3) on.
  • the fleece layer (1) also has a take-off device (8) directed transversely or obliquely to the movement path of the main carriages (2, 3) for receiving and transporting the multi-layer fleece (10).
  • the fleece layer (1) can have a tensioning device (4).
  • the two laying belts (6,7) which are guided in separate loop paths, come together on the upper carriage (2) from different directions, are guided there via a belt deflection (12) described below and emerge from the upper carriage (2) in a parallel position, with the Pick up the fiber pile (9) and on both sides lead in the clamp connection.
  • the fiber web (9) is transferred from this parallel band section directly in a straight path to the laying carriage (3).
  • the laying belts (6, 7) come apart again and are led away in opposite directions, the released fiber web (9) emerging down onto the take-off device (8) and being deposited there.
  • the laying carriage (7) performs reversing movements in the transverse direction to the take-off device (8), which carries out a forward movement, preferably coupled with the laying carriage movement, and transports away the fleece (10), which is peeled off in flaky form.
  • the main carriages (2, 3) are movably supported and guided parallel to one another by means of drives (31) on a rail guide in the frame of the fleece layer (1). They each have their own and independently controllable drive (not shown) for their travel movement. In the same-direction laying shown, the main carriages (2, 3) move in the same direction of travel, the upper carriage (2) having double paths and twice the speed compared to the laying carriage (3).
  • the travel movements of the main carriages (2,3) can be decoupled from one another, so that the loop length of the laying belts (6,7) running parallel between the main carriages (2,3) can be changed due to differences in movement, thereby forming a pile storage system.
  • the laying belts (6, 7) can also have independent drives that set them in a controlled circular movement. With such a configuration it is possible to influence the exit speed of the fiber web (9) on the laying carriage (3) and in particular to decouple it from the traveling speed of the laying carriage (3). In this way, the pile deposit on the take-off device (8) and the weight per unit area of the fleece (10) can be influenced and can be changed over the laying width of the laying carriage (3) moving back and forth.
  • the consolidated end product can have a desired basis weight distribution or error compensation for pile or consolidation errors can be operated.
  • the tensioning device (4) it is possible to compensate for speed fluctuations in the fed fiber web (9) and to develop a buffer effect.
  • the fleece layer (1) can be designed in different ways, for example according to the EP 1 828 453 B1 , or the DE 203 21 834 U1 or the EP 0 517 563 B2 .
  • the main difference to the previously known fleece layer is the design of the superstructure (2) and the belt deflection (12).
  • FIG 2 shows this belt deflection (12) in an enlarged detailed view.
  • the two laying belts (6,7) are fed to the upper carriage (2) and the belt deflector (12) on the upper side at an inlet point (32) separately from one another and from opposite directions.
  • One laying belt (6) forms the so-called feed belt, which attaches the fiber web (9) to the in Figure 1 the left input side (35) of the fleece layer (1) receives, carries and feeds to the upper carriage (2).
  • the pile guide can be one-sided and in an open position, with one or more pressure rollers possibly being present.
  • the other laying belt (7) is referred to below as the opposing belt.
  • Both laying belts (6, 7) are fed to the upper carriage (2) and the belt deflector (12) in an essentially horizontal orientation.
  • the feed belt (6) moves out of its feed direction at the belt deflection (12) (11) deflected in the opposite direction by approx. 180 ° downwards to an outlet point (33) on the superstructure.
  • both laying belts (6, 7) emerge in a closely spaced parallel position and, in a sandwich with the fiber pile (9), form a pile guide area (34) on both sides.
  • the upper run (13) and the lower run (14) of the feed belt (6) are aligned in parallel, the outlet height of the upper carriage (2) and the inlet height of the laying carriage (3) being the same. This results in a deflection angle of 180 °. If the said outlet and inlet heights are different, the lower run (14) can have an inclination to the horizontal so that the deflection angle can differ slightly from 180 °. An angular deviation can also occur for other reasons, e.g. when the upper run (13) is inclined.
  • the counter belt (7) is also deflected at the belt deflection, whereby the entry and exit direction of the counter belt (7) on the upper carriage (2) can be in the same direction and, in particular, be horizontal.
  • the belt deflection (12) causes a height offset of the opposing belt (7) between the inlet and outlet points (32, 33).
  • Both laying belts (6,7) entering at the top are deflected downwards at the belt deflection (12) and exit again at the upper carriage (2) in a lower position, which in the aforementioned manner is preferably the same height as the entry point on the laying carriage (3) Has.
  • the tape deflection (12) has three preferably rounded deflection points (15, 16, 17) for the so-called pile-guiding laying tape (6) carrying the fiber web (9).
  • the number of deflection points can alternatively also be greater, for example four.
  • the deflection points (15,16,17) are, for example, each of freely rotatable or possibly driven cylindrical pulleys formed, over the shell of which the feed belt (6) is guided. Alternatively, other deflection means are possible.
  • the three deflection points (15,16,17) or deflection rollers are arranged at a distance one above the other, the middle deflection point (16) being further forward in the feed direction (11) than the other two deflection points (15,17).
  • the first strip section (22) in the feed direction (11) is directed obliquely downwards in the feed direction (11).
  • the second band section (23) is directed obliquely downwards against the feed direction (11). If the belt deflector (12) has more than three deflection points for the feed belt (6), the belt section (23) is the last belt section before the outlet point (33) of the upper carriage (2).
  • the feed belt (6) each has a deflection angle ⁇ , ⁇ , ⁇ which is less than 90 °.
  • the angles ⁇ , ⁇ , ⁇ give the total deflection angle of e.g. 180 °.
  • the first deflection angle ⁇ at the first deflection point or deflection roller (15) and also the last, in particular third deflection angle ⁇ at the last or third deflection point (17), are each greater than the deflection angle ⁇ at the middle one Deflection point (16).
  • the first deflection angle ⁇ can be between 55 ° and 70 °, preferably approximately 63 °.
  • the second smaller deflection angle ⁇ can be between 40 ° and 55 °, preferably approximately 46 °.
  • the third and, for example, last deflection angle ⁇ can be between 65 ° and 75 ° and is preferably approximately 71 °.
  • the aforementioned deflection angles ⁇ , ⁇ , ⁇ can vary in size and assignment.
  • the first deflection point or deflection roller (15) on the upper carriage (2) can be shifted horizontally against the feed direction (11), with the two other deflection points or deflection rollers (16, 17) retaining their arrangement and design. This makes the first deflection angle ⁇ smaller and the second deflection angle ⁇ larger than in FIG Figure 2 , whereby their size ratio may also change, in particular vice versa.
  • the belt deflection (12) also has three or more deflection rollers (18 to 21) for the other counter belt (7).
  • three pulleys (18, 19, 20) are arranged one above the other at a distance.
  • the first deflection roller (18) lies in front of the middle deflection roller (19) and this again in front of the lower deflection roller (20).
  • a first straight belt section (24) is inserted between the first and the second or middle deflection roller (18, 19) and a second straight belt section (20) is inserted between the second or middle deflection roller (19) and the lower and / or third deflection roller (20). 25) formed.
  • These straight band sections (24, 25) also have different orientations.
  • a fourth deflection roller (21) is also provided next to the lower deflection roller (20), with which the counter belt (7) is deflected by more than 180 ° and then at the outlet (33) of the upper carriage (2) assumes a parallel and, for example, horizontal position to the feed belt (6) and its lower run (14).
  • a support roller (27) arranged below the deflection rollers (17, 20) supports the deflected counter-belt (7). It can be adjustable in order to adjust the belt height and the distance to the feed belt (6) and, if necessary, to adapt it to different pile thicknesses.
  • the counter belt (7) is arranged below and carries the fiber web (9), the feed belt (6) being arranged above and covering the fiber web (9) from above.
  • the fiber web (9) is fed to the upper run (2) and the belt deflector (12) lying on the upper run (13) of the feed belt (6) at the inlet point (32) above.
  • the fiber web (9) is also guided lying on one side on the feed belt (6).
  • the opposite, first straight belt section (24) of the counter belt (7) is far apart.
  • the first straight band sections (22,24) of both laying bands (6,7) have different orientations and run towards one another at an angle.
  • the second or last straight belt sections (23, 25) of both laying belts (6, 7) run closely adjacent and are essentially aligned in the same direction, their orientation having a directional component opposite to the feed direction (11).
  • the second or last straight ribbon cuts (23, 25) form a narrow gap between them, in which the fiber web (9) is received and, if necessary, guided on both sides with a clamp connection.
  • Said belt sections (23, 25) can run parallel to one another. For the purpose of pile compacting, they can also run conically towards one another at an acute angle and thereby create a gap that narrows in the direction of pile travel form. The shape and size of the gap can be adjusted and changed.
  • the deflection points or the relevant jacket areas of the deflection rollers (16, 19) of the laying belts (6, 7) can have different heights, with the deflection point of the counter belt (7) being somewhat higher, for example.
  • the deflection rollers (16, 19) can be arranged with their axes at the same height, the roller diameter of the deflection roller (16) being larger than that of the deflection roller (19).
  • the fiber web (9) already has the straight belt section (25) of the counter band (7) opposite.
  • the straight belt section (25) of the opposing belt (7) ends before the straight belt section (23) of the feed belt (6).
  • the lower deflecting rollers (17, 20) can have approximately the same diameter, the deflecting roller (20) of the counter-belt (7) being arranged with its axis somewhat above the axis of the deflecting roller (17).
  • the pulleys (17 to 21) of the two laying belts (6, 7) can have adjustable axes and can be adapted to different pile thicknesses or other pile properties.
  • the upper carriage (2) has a pile guide (28) with several, for example two, guide sections (29,30) on the belt deflection (12), in which the fiber pile (9) is guided first on one side and then on both sides.
  • a first open guide section (29) is formed between the first straight belt sections (22,24) of the laying belts (6,7), which run obliquely to one another in a funnel-like manner with a large opening angle of, for example, more than 10 °.
  • the fiber web (9) is guided here on one side on the feed belt (6). Due to the moderate deflection angle ⁇ does not lift the openly guided fiber web (9) from the feed belt (6) even at high running speeds.
  • the first open guide section (29) is followed by the second closed guide section (30) into which the fiber web (9) dips without a guide over an equally moderate deflection angle ⁇ .
  • the second guide section (30) forms a clamping section between the second straight band sections (23, 25), between which the fiber web (9) is guided on both sides in the clamping connection.
  • the clamping area (30) is directed towards the outlet point (33) and ends shortly before it.
  • the two-sided guidance is canceled again, with the possibly compacted and additionally stabilized fiber web (9) at the third deflection point (17) again being moderately deflected by the angle ⁇ under one-sided guidance on the feed belt (6) and then enters the guide area (34) on the outlet side (33) on both sides between the again brought together laying strips (6,7).
  • the fiber web (9) already has a directional component opposite to the feed direction (11) and in the direction of continuation to the laying carriage (3). Even at this deflection point (17), it does not detach from the load-bearing feed belt (6) despite being guided on one side. This is also the case at high running speeds and correspondingly high centrifugal forces.
  • One or more system components can be connected upstream of the fleece layer (1) on the input side (35).
  • This can, for example, be a pile forming device, in particular a card or card.
  • a stretching or compressing device, a pile storage device or other similar system components can be connected upstream.
  • the system components mentioned are not included shown.
  • One or more system components can also be connected downstream on the output side of the fleece layer (1) and the delivery point of the take-off device (8).
  • This can be a web bonding device, e.g. a single-stage or multi-stage needling machine, a hydroentanglement system, a thermal consolidation device or the like.
  • a compensating belt for buffering and compensating for fluctuating web delivery speeds can also be connected between the web layer (1) and the consolidation device, in particular a needle machine.
  • the number of deflection points (15, 16, 17) of the feed belt (6) can be greater than three and can e.g. be four or five, the number and orientation of the straight band sections (22,23) increasing accordingly.
  • the size and distribution of the deflection angles can also change.
  • the deflection points (18, 19, 20) of the counter-belt (7) can be adapted accordingly.
  • the pile guide (28) can also have a larger number of sections, it being possible to increase the number of open guide sections (29) and / or clamping sections (30).
  • the fleece layer (1) can for example be designed as a counter-rotating layer, in which the main carriages (2,3) move in opposite directions and the laying belts (6,7) running parallel in the guide area (34) between the two main carriages (2,3 ) are guided over a fixed deflection, eg a deflection roller.
  • the clamping device (4) can be omitted or designed in a different way, for example only has a single auxiliary or tensioning carriage.
  • the guide of the laying belts (6, 7) can be designed in a different way, with one or more additional support carriages being arranged, for example.
  • the counter belt (7) can be laid as far as the entry side of the fleece layer (1) and cover the fiber pile (9) on the feed belt (6).
  • Such modifications of the design of the web layer shown (1) can, for example, according to FIG EP 1 010 785 , the EP 1 010 786 or the EP 1 010 787 be trained.
  • the laying strips (6, 7) consist of high-tensile and flexurally elastic plastic sheets. They can alternatively consist of other materials and e.g. be designed as chain or slat belts. Variations are also possible with regard to the drive technology.
  • the main carriages (2, 3) can have a common drive for their travel movements and can be mechanically coupled to one another by a cable or the like.
  • the fleece layer (1) has a preferably programmable control (not shown) to which the various drives of the main carriages (2,3), the laying belts (6,7) and the take-off device (8) as well as any other components, e.g. a stretching device arranged in the inlet area.
  • This control can be connected to a higher-level system control or integrated into it.
  • a belt deflection (12) of the type shown with several deflection points for at least one laying belt (6, 7) can also be present at other points of a fleece layer (1) or compensating stacker, for example on the laying carriage (3) or on a stationary 180 ° belt deflection in the Frame of the fleece layer (1).

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (15)

  1. Distributeur de voile comportant un chariot supérieur (2) et un chariot de distribution (3), ainsi que deux bandes de distribution sans fin (6, 7) qui sont chacune guidées par des poulies de déflection (15-21) au niveau du chariot supérieur (2) et du chariot de distribution (3), l'une des bandes de distribution (6) étant conçue comme une bande d'amenée qui porte un voile de carde (9) et l'amène au chariot supérieur (2) et le chariot supérieur (2) comportant un dispositif de déviation de bande (12) destiné aux deux bandes de distribution (6, 7), une bande de distribution (6) étant déviée d'environ 180° depuis son sens d'amenée (11) dans le sens opposé au niveau du dispositif de déviation de bande (12), caractérisé en ce que le dispositif de déviation de bande (12) comporte trois points de déviation ou plus (15, 16, 17) destinés à la bande de distribution (6), l'une des bandes de distribution (6) présentant en chacun des trois points de déviation ou plus (15, 16, 17) un angle de déviation α, β, γ inférieur à 90°.
  2. Distributeur de voile selon la revendication 1, caractérisé en ce que l'une des bandes de distribution (6) comporte au niveau du dispositif de déviation de bande (12) au moins deux portions de bande droites (22, 23) ayant des orientations différentes, les portions de bande droites (22, 23) étant disposées entre les points de déviation (15, 16, 17), en particulier des rouleaux de déviation.
  3. Distributeur de voile selon la revendication 2, caractérisé en ce que la première portion de bande (22) par référence au sens d'amenée (11) est orientée obliquement vers le bas par référence au sens d'amenée (11) et la deuxième ou dernière portion de bande (23) est orientée obliquement vers le bas à l'opposé du sens d'amenée (11).
  4. Distributeur de voile selon l'une des revendications précédentes, caractérisé en ce que le premier angle de déviation α et le dernier, en particulier le troisième, angle de déviation y sont chacun supérieurs à la moyenne, en particulier au deuxième angle de déviation β.
  5. Distributeur de voile selon l'une des revendications précédentes, caractérisée en ce que le premier angle de déviation α est compris entre 55° et 70°, de préférence est d'environ 63°, le deuxième angle de déviation β est compris entre 40° et 55°, de préférence est d'environ 46°, et le troisième et dernier angle de déviation y est compris entre 65° et 75°, de préférence est d'environ 71°.
  6. Distributeur de voile selon l'une des revendications précédentes, caractérisé en ce que le dispositif de déviation de bande (12) destiné à l'autre bande de distribution (7) comporte trois rouleaux de déviation ou plus (18-21), l'autre bande de distribution (7) comportant au niveau du dispositif de déviation de bande (12) deux portions de bande droites ou plus (24, 25) ayant des orientations différentes.
  7. Distributeur de voile selon la revendication 6, caractérisé en ce que trois rouleaux de déviation (18, 19, 20) de l'autre bande de distribution (7) sont disposés à distance les uns au-dessus des autres, le premier rouleau de déviation (18) étant situé en amont du rouleau de déviation central (19) et celui-ci étant situé en amont du rouleau de déviation inférieur (20) par référence au sens d'amenée de l'autre bande de distribution (7) au chariot supérieur (2).
  8. Distributeur de voile selon l'une des revendications 2 à 7, caractérisé en ce que les portions de bande supérieures ou premières portions de bande droites (22, 24) des deux bandes de distribution (6, 7) ont des orientations différentes et défilent angulairement l'une vers l'autre, la deuxième ou dernière portion de bande droite (23, 25) des deux bandes de distribution (6, 7) étant étroitement adjacentes et orientées sensiblement dans le même sens.
  9. Distributeur de voile selon la revendication 8, caractérisé en ce que la deuxième ou dernière portion de bande droite (23, 25) des deux bandes de distribution (6, 7) s'étendent parallèlement l'une à l'autre ou en cône l'une vers l'autre suivant un angle aigu.
  10. Distributeur de voile selon l'une des revendications précédentes, caractérisé en ce que le chariot supérieur (2) comporte au niveau du dispositif de déviation de bande (12) un dispositif de guidage de voile de carde (28) pourvu d'une pluralité de portions (29, 30) dans lesquelles le voile de carde (9) est guidé d'abord d'un côté puis des deux côtés.
  11. Distributeur de voile selon l'une des revendications précédentes, caractérisé en ce que le chariot supérieur (2) et le chariot de distribution (3) sont disposés de manière mobile parallèlement l'un à l'autre et sont entraînés et commandés indépendamment, le distributeur de voile (1) comportant des entraînements de bande commandés destinés à faire circuler les bandes de distribution (6, 7).
  12. Distributeur de voile selon l'une des revendications précédentes, caractérisée en ce que le distributeur de voile (1) comporte un mécanisme de tension (4), pourvu notamment d'un ensemble de chariots auxiliaires, qui est destiné aux bandes de distribution (6, 7) et qui est accouplé au chariot supérieur (2) et au chariot de distribution (3).
  13. Distributeur de voile selon l'une des revendications précédentes, caractérisé en ce que les bandes de distribution (6, 7) sont guidées en parallèle dans une seule portion droite dans la zone située entre le chariot supérieur (2) et le chariot de distribution (3) et serrent le voile de carde (9) entre elles.
  14. Installation de traitement de fibres comprenant un distributeur de voile selon l'une des revendications précédentes, caractérisée en ce que le distributeur de voile (1) est monté en aval d'un dispositif de formation de voile de carde, notamment d'une carte ou d'une machine à carder, et est monté en amont d'un dispositif de consolidation de voile, en particulier d'une machine à aiguilles ou d'une installation de consolidation à jets d'eau ou d'un dispositif de consolidation thermique.
  15. Procédé de distribution d'un voile multicouche (10) à l'aide d'un distributeur de voile (1) qui comporte un chariot supérieur (2) et un chariot de distribution (3), ainsi que deux bandes de distribution sans fin (6, 7) qui sont guidées par des rouleaux de déviation (15-21) au niveau du chariot supérieur (2) et du chariot de distribution (3), la première bande de distribution (6) conçue en tant que bande d'amenée portant un voile de carde (9) et l'amenant au chariot supérieur (2) et le chariot supérieur (2) comportant un dispositif de déviation de bande (12) destiné aux deux bandes de distribution (6, 7), l'une des bandes de distribution (6) étant déviée, au niveau du dispositif de déviation de bande (12), d'environ 180° de son sens d'amenée (11) dans le sens opposé, caractérisé en ce que l'une des bandes de distribution (6) est déviée au niveau du dispositif de déviation de bande (12) en trois points de déviation ou plus (15, 16, 17), l'une des bandes de distribution (6) formant au niveau de chacun des trois points de déviation ou plus (15, 16, 17) un angle de déviation α, β, γ inférieur à 90°.
EP18193837.4A 2012-07-13 2013-07-12 Distributeur de voile et procédé de distribution de voile Active EP3447175B1 (fr)

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DE202012102597U DE202012102597U1 (de) 2012-07-13 2012-07-13 Vliesleger
EP13742410.7A EP2872682B1 (fr) 2012-07-13 2013-07-12 Distributeur de voile
PCT/EP2013/064781 WO2014009520A1 (fr) 2012-07-13 2013-07-12 Distributeur de voile

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Also Published As

Publication number Publication date
EP3447175A1 (fr) 2019-02-27
EP2872682B1 (fr) 2018-09-12
CN104583477B (zh) 2017-03-15
WO2014009520A1 (fr) 2014-01-16
US9909236B2 (en) 2018-03-06
EP2872682A1 (fr) 2015-05-20
CN104583477A (zh) 2015-04-29
DE202012102597U1 (de) 2013-10-14
US20150176159A1 (en) 2015-06-25

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