EP1654407B1 - Dispositif de guidage de non-tisse pour machine textile et machine textile - Google Patents

Dispositif de guidage de non-tisse pour machine textile et machine textile Download PDF

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Publication number
EP1654407B1
EP1654407B1 EP04741626A EP04741626A EP1654407B1 EP 1654407 B1 EP1654407 B1 EP 1654407B1 EP 04741626 A EP04741626 A EP 04741626A EP 04741626 A EP04741626 A EP 04741626A EP 1654407 B1 EP1654407 B1 EP 1654407B1
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EP
European Patent Office
Prior art keywords
guiding device
web
guide surface
web guiding
foregoing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP04741626A
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German (de)
English (en)
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EP1654407A1 (fr
Inventor
Albert Kriegler
Frank Ficker
Corinna Wiede
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rieter Ingolstadt GmbH
Original Assignee
Rieter Ingolstadt GmbH
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Filing date
Publication date
Application filed by Rieter Ingolstadt GmbH filed Critical Rieter Ingolstadt GmbH
Publication of EP1654407A1 publication Critical patent/EP1654407A1/fr
Application granted granted Critical
Publication of EP1654407B1 publication Critical patent/EP1654407B1/fr
Anticipated expiration legal-status Critical
Not-in-force legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides

Definitions

  • the invention relates to a nonwoven guide device for a textile machine with a drafting system for compressing a fiber web leaving the drafting system in expanded form with an inlet section and a subsequent outlet section, which has a cross section narrowed with respect to the inlet section.
  • the invention relates to a textile machine with such a nonwoven guide device.
  • Guiding devices of the type mentioned above are known in particular from cards, tracks and combers ago.
  • the drafting system is followed by a non-woven width extending nonwoven funnel which has a concavely curved baffle at its lowest point a funnel mouth with a funnel channel is arranged.
  • This fleece funnel is sometimes called a fleece guide nozzle.
  • a nonwoven nozzle insert designed to be elongated in the nonwoven transport direction can be inserted, wherein the nonwoven leaves the fleece funnel through its exit section and passes through the nonwoven nozzle insert to form a sliver funnel.
  • the sliver funnels on the output side into a gap formed by downstream calender rolls, wherein the nonwoven fabric or the sliver formed from the nonwoven fabric sliver is pressed between the calender rolls and withdrawn from the sliver funnel.
  • a nonwoven guide device of the type mentioned in such a way that a gentle fleece transport from the output of the drafting to the trigger devices (for example, calender rolls) possible without generating band disturbances within the web is possible.
  • a nonwoven guide device according to claim 1.
  • a textile machine according to the invention with a drafting system is characterized by a corresponding nonwoven guiding device.
  • outer fibers are guided more directly or with fewer detours to the exit section than further inward ones.
  • all fibers of the nonwoven fabric are preferably conducted from at least one guide surface to the outlet section, so that the fibers lying inside are also guided, and not directly.
  • the inner fibers are thus not transported by the shortest route from the output rollers of the drafting system or a Umlenkoberwalze to the outlet section and further into a fleece nozzle section or a belt hopper.
  • the distance covered by the fibers lying further inside the fleece is artificially prolonged, so that an offset of the fibers of the fiber fleece between drafting equipment outlet and the calender rolls is kept low or even completely avoided. Accordingly, it is expedient to guide the outermost fibers almost directly or in a slight arc to the exit section, while the central fibers located in the center advantageously cover an arcuate path.
  • the fleece running direction is inclined when leaving the drafting system with respect to the axis of the downstream belt hopper, while the belt hopper is oriented vertically.
  • the at least one guide surface is formed according to the invention with a concave profile between the inlet section and outlet section, so that it realizes the corresponding path deflection of the web and also completely avoids the fiber offset over the web width at least partially and in a particularly preferred case.
  • the high distortion quality of the nonwoven at the exit of the drafting system and possibly also the parallelization of the fibers of the nonwoven leaving the drafting system are preserved. Overall, a sliver of higher uniformity results than in the prior art.
  • the at least one guide surface is formed such that the paths of all fibers from the outlet of the drafting to the exit section are substantially equal in length, so that no displacement of the fibers occurs after leaving the drafting system.
  • mathematical modeling has been performed.
  • the guide surface may be formed similar to the inner surface of a shell or a baseball glove to meet the requirement of equally long distances.
  • the guide surface extends advantageously following the output roller of the drafting system over the entire web width. After an optional deflection section of the guide surface in order to deflect the web from the exit of the drafting system in the direction of the calender rolls, the lateral sections of the guide surface lead essentially straight to the exit section.
  • the corresponding surface section for the inner fibers is concave or bulbous, with the largest curvature being provided for the central or central fibers.
  • the nonwoven guide device is arranged or arranged immediately behind the last drafting roller or the last drafting roller pair, so that an immediate guidance of the fibers after leaving the drafting system can be achieved.
  • the at least one guide surface is formed substantially continuously or completely over the area between the inlet section and the outlet section, further, a continuous guidance of the fibers can be realized.
  • a gentle fiber guide is also beneficial if the fibers are guided substantially tangentially to the guide surface in the region of the inlet section and then - depending on their position with respect to the fleece width - are directed to the outlet section. Abrupt deflections of the fibers and thus a disturbance of the sensitive, precisely warped nonwoven fabric are avoided.
  • the fibers can be guided between at least two guide surfaces, which can be arranged opposite to one another or offset in the nonwoven running direction.
  • at least a portion of the web is first on one guide surface and then on the other guide surface along feasible.
  • the inner fibers of the nonwoven are passed over a curved guide surface and thus deflected out of the way to the belt hopper until they are guided by a further downstream guide surface on its original path to the belt hopper.
  • guide surfaces are preferably such formed and arranged so that at least the inner fibers are guided at faster delivery speeds substantially along a concave guide surface and at lower delivery speeds substantially along a convex guide surface.
  • high delivery speeds for example above 300 m / min
  • the inner fibers leaving the drafting system are thus guided along the concave surface.
  • lower delivery speeds for example up to 300 m / min
  • the inner fibers are not conveyed against this concave guide surface but would move more directly to the nonwoven nozzle. Therefore, it is advantageous to deflect these fibers at the mentioned low delivery speeds from the other side.
  • the inner fibers are preferably guided along the convex guide surface and, in this way, are likewise deflected in accordance with the invention to the exit section.
  • the inlet section and the outlet section as well as the at least one guide surface are integrally formed as a whole according to an advantageous embodiment.
  • a multi-part design may be useful if more than one guide surface is provided.
  • the individual parts of the nonwoven guide device can be separated from one another such that e.g. the Einfädelprozeß for a fleece end is facilitated.
  • the at least one guide surface can be changed in its position.
  • the fleece can run over said convex guide surface, which can then, for example, be swiveled away at higher speeds.
  • This measure can help prevent the formation of air vortices or clogging of the device with fiber material.
  • a simple threading of the web end can be realized when the Einfädelungsquerêt is briefly increased by changing the position of the at least one guide surface.
  • such a position change is realized by a pivot mechanism.
  • a control device be provided, which outputs an actuating instruction for the respective positioning of the guide surface depending on the delivery speed.
  • the nonwoven guide device is designed such that all or part of it in a belt jam and / or winding formation on one of the output rollers and / or for easier access to the nonwoven guide device downstream elements, such as a nonwoven or a belt hopper, for Purpose of easier threading of an operating position in a maintenance position is pivoted.
  • downstream elements such as a nonwoven or a belt hopper, for Purpose of easier threading of an operating position in a maintenance position is pivoted.
  • further elements for web formation or band formation can be given away, for example nonwoven nozzle elements or a band funnel.
  • openings may be provided, which can be used in particular for the discharge and / or supply of air. For example, these openings may be made very small and sucked in order to realize a uniform contact of the fibers along the guide surface. On the other hand, openings can be used to impart a component of movement to the fibers in the direction of the exit section. It may also be provided that openings for air supply or in another section openings for air discharge are realized in one section. Openings can still be used to prevent the formation of air vortices within the web guiding device.
  • the nonwoven guiding device encloses the fibers at least in regions more than 180 ° and in a further advantageous embodiment at least partially completely. Especially in the transition region from the outlet section to a subsequent nonwoven nozzle or a subsequent belt hopper, it is advisable that the nonwoven guide device is arranged on all sides around the compacted fiber fleece.
  • the nonwoven guide device according to the invention is advantageously designed as a funnel or comprises such.
  • a funnel is in accordance with the above-stated responsible for compressing the emerging from the drafting fiber web and usually supply a downstream nonwoven nozzle and / or a belt hopper.
  • Such a fleece nozzle which is optionally also designed as an insert, and / or a downstream band hopper are summarized according to a further advantageous embodiment in the nonwoven guide device according to the invention.
  • the at least one guide surface is formed fiber-free or slidable in order to avoid fiber deposits and to ensure undisturbed, uniform operation. It is therefore preferred low-friction materials, such as an enamel coating or polished stainless steel, used for the guide surface (s). Also, the corresponding material is preferably formed abrasion resistant or wear-free.
  • the invention also includes a textile machine with a drafting system comprising a nonwoven guide device according to the foregoing. Due to the leadership of the fibers according to the invention can also be dispensed with a Umlenkoberwalze, as found in most common routes use. The deflection can be completely taken over by the at least one guide surface according to the invention.
  • FIG. 1 is shown in a schematic, sectional side view of a horizontal drafting 1 with successive pairs of rollers.
  • An input roller pair with an input lower roller 2 and an upper input roller 5 is followed by a middle roller pair with a middle lower roller 3 and middle upper roller 6.
  • These two pairs of rollers form the so-called Vorverzugsfeld, which adjoins the main drafting zone, which consists of said middle roller pair and a pair of output rollers with an output lower roller 4th and an output top roll 7 consists.
  • a pressure rod 8 is arranged, which serves to guide unclamped, so-called floating fibers in the main drafting field.
  • the in the drafting 1 to be forgiven nonwoven fabric is marked with the reference symbol V.
  • the drafting system 1, one or more slivers B can be supplied in spread out form.
  • the drafting system 1 may be part of a card, a track or a combing machine. It is irrelevant for the invention, whether the drafting system 1 is adjustable.
  • a nonwoven guide device 20 Downstream of the drafting system 1 is a nonwoven guide device 20 according to the invention according to a first embodiment, which in a perspective view in FIG. 2 is shown.
  • This web guide device 20 is formed in two parts and consists on the one hand of a funnel 21 and a bale-shaped body 31, wherein the body 31 projects centrally into the hopper 21.
  • the funnel 21, in the FIGS. 3 to 5 is shown in more detail, is designed to be drafting towards 1 open and has on both sides ascending edges 27a, which are connected to a substantially straight, upper edge portion 27b. At the lower edge, the funnel 21 has a recess 27c, through which a doubly curved holder 35 extends for the body 31.
  • the side view of FIG. 5 It can be seen that the rear wall of the funnel 21 is formed to the outlet portion 24 inwardly (concave) extending. In an alternative, the rear wall may also run out perpendicularly or outwardly (convexly), as a result of which turbulence in the outlet section 24 may possibly be reduced, which could produce a twist in the fiber fleece.
  • the inlet section 22 is connected to the outlet section 24 via a continuous guide surface 23 of the funnel 21.
  • the guide surface 23 is such formed so that over the width of the inlet portion 22 into the hopper 21 reaching fibers on their way to the exit section 24 cover substantially equal distances.
  • the fibers of the nonwoven fabric V are - provided sufficiently high delivery speeds - along the inner surface and the guide surface 23 of the hopper 21 to the outlet section 24 out (s., Dashed line in FIG. 1 ).
  • the formation of the guide surface 23 is therefore such that the fibers of the non-woven fabric V lying further inwards are deflected or deflected more strongly than the fibers lying further outside.
  • the web V at a relatively high speed leaves the drafting system 1 and is therefore conveyed to the guide surface 23, wherein it first enters the hopper 21 substantially parallel to this guide surface in the region of the inlet portion 22 and then is deflected gently to the outlet section 24.
  • the velocity impulse given to the nonwoven V is not sufficient to convey it to the guide surface 23. Rather, in this case, the nonwoven V slides along the convex guide surface 33 of the body 31 opposite the guide surface 23 (see dotted line in FIG FIG. 1 ) to the exit section 24.
  • the holder 35 for the crowned body 31 has at its foot a slot 36 for receiving a screw, not shown, by means of which the relative position of the body 31 to the hopper 21 is adjustable (see double arrow f 1 in FIG. 1 ).
  • the thus adjustable penetration depth of the body 31 into the hopper 21 determines when the fleece V is supported by the guide surface 33.
  • the hopper 21 has the outlet portion 24 below a widened foot 25 which is mounted on the underside of a plate 9, wherein the screw o. The like. Are not shown in detail.
  • On both sides of the plate 9 are side flanges 10th attached to the undersides recesses 11 are provided. These recesses 11 may each receive a non-illustrated, fixed axis of a carrier unit arranged thereunder, so that the plate 9 is pivotable, in particular in a belt jam in the web guiding device 20.
  • the pivoting direction is by the double arrows f 2 in the Figures 1 and 2 indicated.
  • a fleece nozzle 12 is arranged in alignment with the outlet section 24, which leads the compacted nonwoven V to a belt hopper, not shown.
  • a discharge funnel directly adjoins the outlet section 24.
  • FIG. 6 is a comparison with the horizontal in fleece running direction downwardly inclined drafting 1 shown, which otherwise the drafting 1 of FIG. 1 like.
  • This construction implies that the nonwoven guide device 120 has a different geometry than that according to the FIGS. 1 to 5 .
  • the funnel 121 as part of the nonwoven guide device 120 which in a perspective view in FIG. 7 is shown in more detail, is curved to a lesser extent than the funnel 21 in the FIGS. 1 to 5 , otherwise very similar to the basic structure.
  • the inlet section 122 which extends over the width of the fleece, tapers almost linearly toward the outlet section 124 on both sides, while towards the center the guide surface 123 is increasingly curved.
  • FIG. 6 is a comparison with the horizontal in fleece running direction downwardly inclined drafting 1 shown, which otherwise the drafting 1 of FIG. 1 like.
  • This construction implies that the nonwoven guide device 120 has a different geometry than that according to the FIGS. 1 to 5 .
  • the funnel 121 as part of the nonwoven guide device 120 which
  • a body convexly curved convexly toward the fleece V and curved in cross-section and flat, which projects into the funnel 121 and serves to guide the fibers at low delivery speeds (for example below 300 m / min) is optionally provided. If the body 131 is absent, the funnel 121 is the only element of the nonwoven guide device 120.
  • a nonwoven nozzle 12 with a subsequent belt funnel 14 Downstream of the nonwoven guide device 120 is a nonwoven nozzle 12 with a subsequent belt funnel 14. Furthermore, openings 13 are provided laterally, obliquely downward toward the center of the belt web, through which air can escape from the compressed web V. Other possibilities for air escape - at the entrance of the fleece nozzle 12 and already upstream in the web guiding device 120 - are indicated by arrows.
  • In the belt hopper 14 (and upstream of this) may continue to be present in a known manner, not shown, which can be acted upon with compressed air to give the web V a pulse in the downstream direction. This measure supports in a known manner the threading process of a Vliesendes.
  • a pair of calender rolls 15, 16 are connected downstream of the sliver funnel 14, which are known to be used to strip the web V by the web guiding device 120 and to transport the resulting strip to a band channel and finally to a sliver can.
  • circumferentially closed funnel 121 in the outlet region circumferentially closed funnel 121 are on the guide surface 123 in fleece running horizontally spaced fictitious lines 128 shown. These lines 128 are all substantially the same length and symbolize the distance covered by the fibers, regardless of their position over the width of the fleece, which is essentially the same length.
  • openings 129 are provided in the guide surface 123, which - similar to the exhaust air ducts 26 according to the first embodiment - are formed for the discharge of air from the nonwoven fabric V.
  • compressed air can be introduced through these openings, which support the Einfädelprozeß a Vliesendes.
  • FIGS. 9 and 10 is a non-inventive embodiment of the nonwoven guide device is shown.
  • This roll pair 4, 7 is directly downstream of the - non-woven web guiding device 220, which is formed here in one piece and a has an elongated, slightly tapered shape in the fleece running direction.
  • the fleece guiding device 220 has a widened entry section 222 in order to be able to receive the fleece V in its entire width.
  • a round in cross-section outlet portion 224 is provided, the - similar to the construction according to the FIG. 6 -
  • a nonwoven nozzle 12, a belt hopper 14 and calender rollers 15, 16 are arranged downstream.
  • FIG. 9 The perspective view of FIG. 9 as well as the longitudinal and central cut side view of FIG. 10
  • the nonwoven guide device 220 has on a longitudinal wall an inwardly curved guide surface 233 against which inwardly located fibers of the nonwoven fabric V soft start to be deflected from its vertical direction (see dotted line in FIG FIG. 10 ).
  • the outer fibers do not undergo deflection in the direction of the opposite wall, but are guided almost linearly to the outlet section 224 (see dotted line in FIG FIG. 10 ).
  • the area which is available to the fleece in the interior of the fleece guiding device 220 is in the FIGS. 9 and 10 shown dotted (as well as in the FIGS. 11 and 12 ).
  • the fibers of the nonwoven lying further inside are first guided on the guide surface 233, which rises directly below the gap of the rollers 4, 7. Subsequently, these fibers reach the opposite wall, which is also formed as a guide surface 223, to then reach the outlet portion 224. Also in this embodiment, the distances traveled by the various fibers of the web V distributed over the fiber width are preferably of the same length from the inlet section 222 to the outlet section 224.
  • the funnel-shaped nonwoven guide device 220 may be slit longitudinally at one location to facilitate easy threading of a nonwoven end. It must be ensured hereby that the fleece does not get into this slot during operation.
  • Another alternative for assisting threading is a wall section of the nonwoven guide device 220 is foldable or removable.
  • the fifth embodiment, the nonwoven guide device 320 according to the FIGS. 11 and 12 is formed in two parts.
  • the central fiber deflecting guide surface 333 is part of a body 331 which projects into a funnel 321 and is advantageously adjustable in position.
  • the body is designed to be pivotable, in this case about an axis 339 (see double arrow f 5 ).
  • For threading a nonwoven end of the body 331 is first pivoted outward, pushed the fleece end deep in the hopper 321 and started the machine in slow motion. With successful threading the body 331 can then be pivoted from the maintenance position to its operating position.
  • the hopper 321 also has a guide surface 323 which directs the center fibers on their last path to the exit section 324 after being previously deflected from the guide surface 333 from their direct path from the entrance section 322 to the exit section 324.
  • the FIG. 12 shows the nonwoven guide device 320 for better understanding in a plan view.
  • a non-woven guiding device 420 which is similar to that according to FIG Figures 1-5 is trained. However, the following differences exist:
  • the inlet section 422 defined thereby is bent in the form of a partial cylinder with a small radius, which merges in the fleece running direction into a guide surface 423 with a lower curvature. This curvature is stronger towards the middle of the fleece than at the edge in order to achieve the effect according to the invention.
  • the exit portion 424 is substantially semicircular and therefore open, also to provide easy access to the subsequent elements.
  • the lateral edge portions 427 a run substantially linearly from the curved inlet section 422 to the outlet section 424.
  • a flange 428 is provided in each case on its two outer sides, on each of which a pivot foot 429 is attached.
  • the two pivoting feet 428 are pivotally mounted on a block 409 about an axis 411, so that funnel 421 from an operating position ( FIG. 13 ) into a maintenance position ( FIG. 14 ) can be brought to thread the free web end, s. Arrows around the axis 411. Even with belt jamming or winding on the output rollers of the funnel 421 pivots from the operating position to its maintenance position, so that easy access to eliminate the fault is present.
  • FIGS. 13 and 14 lies the lower edge 427a of the funnel 421 on the block 409 and partially encloses a crater-like opening 430, in which (not shown) a funnel insert and then in the nonwoven running direction then a sliver funnel can be used.
  • the embodiments shown in the figures have in common that the fibers of the web V are each guided without abrupt deflections and thus in a gentle manner to the respective outlet section. This also applies to the impact of the fibers on the guide surfaces in the inlet section of the respective nonwoven guide device; In this case, the fibers preferably strike the guide surface almost tangentially or at a very small angle.
  • the respective inlet sections, guide surfaces and outlet sections are each formed in one piece.
  • the guide surface forms a single element for itself and can be introduced into the space between the inlet and outlet sections, either fixed there or movably arranged, for example by means of a pivot mechanism.

Claims (30)

  1. Dispositif de guidage de toison de fibres non-tissée pour une machine textile avec un banc d'étirage (1) pour compacter une toison non-tissée (V) sortant du banc d'étirage (1) sous forme étalée, avec une section d'entrée (22; 122; 222; 322; 422) et une section de sortie (24; 124; 224; 324; 424) en aval de ladite section d'entrée (22; 122; 222; 322; 422), laquelle section de sortie (24; 124; 224; 324; 424) présente section rétrécie par rapport à celle de la section d'entrée (22; 122; 222; 322; 422), sachant qu'il est prévu au moins une surface de guidage (23, 33; 123, 133; 223, 233; 323, 333; 423) entre la section d'entrée (22; 122; 222; 322; 422) et la section de sortie (24; 124; 224; 324; 424), laquelle surface de guidage (23, 33; 123, 133; 223, 233; 323, 333; 423) se présente sous une forme telle que les fibres intérieures, vues dans le sens transversal de la toison de fibres non-tissée, soient guidées moins directement vers la section de sortie (24; 124; 224; 324; 424) que les fibres extérieures, caractérisé en ce que l'au moins une surface de guidage (23, 33; 123, 133; 423) se présente sous une forme telle que le sens de déplacement de la toison de fibres non-tissée à la section d'entrée (22; 122; 422) forme un angle avec le sens de déplacement de la toison de fibres non-tissée à la section de sortie (24; 124; 424), sachant que la surface de guidage (23, 33; 123, 133; 423) entre la section d'entrée (22; 122; 422) et la section de sortie (24; 124; 424) présente une allure concave, et que la toison de fibres non-tissée n'est pas seulement compactée par le dispositif de guidage de toison de fibres non-tissée, mais aussi guidée vers un entonnoir disposé en aval.
  2. Dispositif de guidage de toison de fibres non-tissée selon la revendication 1, caractérisé en ce que la surface de guidage (23, 33; 123, 133; 223, 233; 323, 333; 423) se présente sous une forme telle que les fibres disposées à l'extrême extérieur sont guidées vers la section de sortie (24; 124; 224; 324; 424) sur une trajectoire essentiellement linéaire ou légèrement curviligne.
  3. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce que l'au moins une surface de guidage (23, 33; 123, 133; 223, 233; 323, 333; 423) se présente sous une forme telle que les distances parcourues par toutes les fibres de la sortie du banc d'étirage (1) à la section de sortie (24; 124; 224; 324; 424) soient de longueurs essentiellement égales.
  4. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il peut être disposé immédiatement en aval du dernier cylindre de banc d'étirage ou de la dernière paire de cylindres (4, 7) de banc d'étirage.
  5. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce que l'au moins une surface de guidage (23, 33; 123, 133; 223, 233; 323, 333; 423) se présente sous une forme essentiellement continue entre la section d'entrée (22; 122; 222; 322; 422) et la section de sortie (24; 124; 224; 324; 424).
  6. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce que l'au moins une surface de guidage (23, 33; 123, 133; 223, 233; 323, 333; 423) présente dans la zone de la section d'entrée (22; 122; 222; 322; 422) une forme et une disposition telles que les fibres venant du banc d'étiràge (1) parviennent à la surface de guidage (23, 33; 123, 133; 223, 233; 323, 333; 423) de manière quasiment tangentielle.
  7. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce que l'au moins une surface de guidage (23, 33; 123, 133; 223, 233; 323, 333; 423) se présente sous une forme telle que les fibres puissent être guidées vers la section de sortie (24; 124; 224; 324; 424) essentiellement sans changement de direction brusque.
  8. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce que les fibres peuvent être guidées entre au moins deux surfaces de guidage (23, 33; 123, 133; 223, 233; 323, 333) disposées l'une en face de l'autre ou décalées dans le sens de déplacement de la toison de fibres non-tissée.
  9. Dispositif de guidage de toison de fibres non-tissée selon la revendication 8, caractérisé en ce qu'une partie au moins de la toison de fibres non-tissés, de préférence les fibres disposées plus à l'intérieur, est d'abord guidée par une surface de guidage (233; 333), puis par une autre surface de guidage (223; 323).
  10. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce que les surfaces de guidage (23, 33; 123, 133; 223, 233; 323, 333) présentent une forme et une disposition telles que les fibres soient guidées essentiellement le long d'une surface de guidage concave (23; 123) à des vitesses de livraison relativement élevées et essentiellement le long d'une surface de guidage convexe (33; 133) à des vitesses de livraison relativement faibles.
  11. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce que la section d'entrée (22; 122; 222; 322; 422) et la section de sortie (24; 124; 224; 324; 424) ainsi que l'au moins une surface de guidage (23, 33; 123, 133; 223, 233; 323, 333; 423) se présentent au total sous une forme à une partie.
  12. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce que la section d'entrée (22; 122; 222; 322; 422) et la section de sortie (24; 124; 224; 324; 424) ainsi que l'au moins une surface de guidage (23, 33; 123, 133; 223, 233; 323, 333; 423) se présentent sous une forme à plusieurs parties.
  13. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce que la position de l'au moins une surface de guidage (23, 33; 123, 133; 223, 233; 323, 333; 423) peut être modifiée.
  14. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une partie au moins du dispositif de guidage de toison de fibres non-tissée (20; 120; 420) peut être pivotée dans le cas d'une accumulation de ruban de fibres, de formation de bobine de peignée et/ou pour l'enfilage de la toison de fibres non-tissée.
  15. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte des ouvertures (26, 26a, 129), particulièrement pour l'évacuation ou l'adduction d'air.
  16. Dispositif de guidage de toison de fibres non-tissée selon la revendication 15, caractérisé en ce qu'il est prévu au moins un canal d'évacuation d'air (26) dans la zone ou au voisinage de la section de sortie (24).
  17. Dispositif de guidage de toison de fibres non-tissée selon la revendication 16, caractérisé en ce qu'un canal d'évacuation d'air au moins (26) est disposé immédiatement en aval de la section de sortie (24).
  18. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications 15 à 17, caractérisé en ce que des ouvertures (129) sont prévues dans l'au moins une surface de guidage (123).
  19. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il enferme les fibres au moins en certaines de ses parties sur plus de 180°, de préférence au moins à la section de sortie (24; 124; 224; 324).
  20. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il enferme les fibres complètement, au moins en certaines de ses parties.
  21. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il enferme les fibres au moins dans la zone de la section de sortie (24; 124; 224; 324).
  22. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce que l'au moins une surface de guidage (23, 33; 123, 133; 223, 233; 323, 333; 423) se présente sous une forme exempte d'adhérence de fibres.
  23. Dispositif de guidage de toison de fibres non-tissée selon l'une quelconque des revendications précédentes, caractérisé en ce que l'au moins une surface de guidage (23, 33; 123, 133; 223, 233; 323, 333; 423) se présente sous une forme essentiellement résistante à l'abrasion.
  24. Machine textile avec un banc d'étirage, caractérisé par un dispositif de guidage de toison de fibres non-tissée (20; 120; 220; 320; 420) selon l'une quelconque des revendications précédentes.
  25. Machine textile selon la revendication 24, caractérisée en ce que le banc d'étirage (1) est disposé à une position horizontale et que la section de sortie (24; 124; 224; 324; 424) guide la toison de fibres non-tissée (V) verticalement vers le bas.
  26. Machine textile selon la revendication 24 ou 25, caractérisée en ce que le banc d'étirage (1) ne comporte aucun cylindre de renvoi, particulièrement aucun cylindre de renvoi supérieur.
  27. Machine textile selon l'une quelconque des revendications 24 à 26, caractérisée en ce qu'un entonnoir (14) est disposé en aval du dispositif de guidage de toison de fibres non-tissée (20; 120; 220; 320; 420).
  28. Machine textile selon l'une quelconque des revendications 24 à 27, caractérisée en ce que le dispositif de guidage de toison de fibres non-tissée (20; 120; 220; 320; 420) peut être pivoté d'une position de fonctionnement à une position d'attente.
  29. Machine textile selon la revendication 28, caractérisée en ce que d'autres éléments (12, 14) pour le compactage de la toison et/ou la formation de rubans de fibres peuvent être pivotés conjointement avec le dispositif de guidage de toison de fibres non-tissée (20; 120; 220; 320; 420).
  30. Machine textile selon la revendication 28 ou 29, caractérisée en ce que le dispositif de guidage de toison de fibres non-tissée (20; 120; 220; 320; 420), en position de fonctionnement, (12; 409) s'enchaîne sans discontinuité à l'élément de compactage (12; 409) disposé en aval.
EP04741626A 2003-05-22 2004-05-21 Dispositif de guidage de non-tisse pour machine textile et machine textile Not-in-force EP1654407B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003123757 DE10323757A1 (de) 2003-05-22 2003-05-22 Vliesführungsvorrichtung für eine Textilmaschine sowie Textilmaschine
PCT/EP2004/050885 WO2004104278A1 (fr) 2003-05-22 2004-05-21 Dispositif de guidage de non-tisse pour machine textile et machine textile

Publications (2)

Publication Number Publication Date
EP1654407A1 EP1654407A1 (fr) 2006-05-10
EP1654407B1 true EP1654407B1 (fr) 2010-04-21

Family

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Application Number Title Priority Date Filing Date
EP04741626A Not-in-force EP1654407B1 (fr) 2003-05-22 2004-05-21 Dispositif de guidage de non-tisse pour machine textile et machine textile

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EP (1) EP1654407B1 (fr)
CN (1) CN100523331C (fr)
DE (3) DE10323757A1 (fr)
WO (1) WO2004104278A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3051013T3 (pl) * 2015-01-30 2019-05-31 Reifenhaeuser Gmbh & Co Kg Maschf Sposób prowadzenia wstęgi włókniny
DE102015106808A1 (de) * 2015-04-30 2016-11-03 Rieter Ingolstadt Gmbh Vliestrichter zum Verdichten eines Faservlieses mit einem Leitelement
CN105442112B (zh) * 2016-01-07 2017-07-21 江南大学 一种平行集聚纺纱装置和纺纱方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH261325A (de) * 1947-10-08 1949-05-15 Rieter Joh Jacob & Cie Ag Vorrichtung, bei welcher ein von einem Streckwerk kommendes Vlies durch einen Führungskörper zusammengedrängt wird.
DE801254C (de) * 1949-03-27 1950-12-28 Suedd Spindelwerke Zinser Einrichtung zum Verdichten einer Lunte
GB740910A (en) * 1953-02-10 1955-11-23 Tmm Research Ltd Improvements in the drafting apparatus of textile spinning machines
CS179204B1 (en) * 1975-09-09 1977-10-31 Miroslav Hanus Equipment for thickening and transferring of textile fibres
JPH0657550A (ja) * 1992-08-07 1994-03-01 Kanebo Ltd ダブルトランペット
DE19528484A1 (de) * 1995-08-03 1997-02-06 Truetzschler Gmbh & Co Kg Vorrichtung an einer Strecke zur Messung der Stärke eines Faserverbandes
DE19909040B4 (de) * 1998-04-16 2017-05-24 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung am Ausgang einer Strecke

Also Published As

Publication number Publication date
CN1791709A (zh) 2006-06-21
EP1654407A1 (fr) 2006-05-10
WO2004104278A1 (fr) 2004-12-02
DE10323757A1 (de) 2004-12-09
DE112004000623D2 (de) 2006-04-27
DE502004011076D1 (de) 2010-06-02
WO2004104278A9 (fr) 2005-05-12
CN100523331C (zh) 2009-08-05

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