EP2635727B1 - Machine de croisement de voile - Google Patents

Machine de croisement de voile Download PDF

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Publication number
EP2635727B1
EP2635727B1 EP20110758219 EP11758219A EP2635727B1 EP 2635727 B1 EP2635727 B1 EP 2635727B1 EP 20110758219 EP20110758219 EP 20110758219 EP 11758219 A EP11758219 A EP 11758219A EP 2635727 B1 EP2635727 B1 EP 2635727B1
Authority
EP
European Patent Office
Prior art keywords
belt
deflection roller
feed
roller
cover
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.)
Active
Application number
EP20110758219
Other languages
German (de)
English (en)
Other versions
EP2635727A1 (fr
Inventor
Bernhard RÜBENACH
Sascha Holzschneider
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.)
Truetzschler Nonwovens GmbH
Original Assignee
Truetzschler Nonwovens GmbH
Erko Truetzschler GmbH
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Filing date
Publication date
Application filed by Truetzschler Nonwovens GmbH, Erko Truetzschler GmbH filed Critical Truetzschler Nonwovens GmbH
Publication of EP2635727A1 publication Critical patent/EP2635727A1/fr
Application granted granted Critical
Publication of EP2635727B1 publication Critical patent/EP2635727B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • 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

Definitions

  • the invention relates to a stacker according to the preamble of the device claim or method claim.
  • a stacker of the generic type shows the EP1 870 499 B1 ,
  • Such a stacker consists of an endlessly circulating infeed belt, on which the pile to be laid is transported into the file.
  • This infeed belt is additionally associated with a pile covering the pile, which runs in opposite directions and at the same rotational speed to the inlet belt.
  • the pile is held.
  • a in the transport direction of the supplied pile movably mounted and periodic reciprocating exporting superstructure has guide rollers for the cover and the infeed belt.
  • the first held between inlet and shroud pile is now transferred to a counter belt and subsequently held between counter and inlet belt.
  • the counter-belt runs at the same speed as the infeed belt and is likewise deflected by a deflection roller arranged in the superstructure.
  • the pile is conveyed to a movably mounted laying carriage, which has deflection rollers (laying rollers) for the two belts.
  • the two parallel juxtaposed laying rollers for the inlet and the counter belt form a delivery point (laying gap) for the pile to be laid, which is now stored on a running under the laying carriage perpendicular or orthogonal to the pile direction draw-off.
  • the laying carriage performs periodic movements across the width of the fleece to be laid.
  • the superstructure moves depending on the movement of the laying carriage.
  • the first deflecting roller for the infeed belt has a peripheral speed of half the pile speed.
  • the EP 1 367 166 A1 describes a Leger with a arranged in a reciprocating superstructure Florumlenkung. Provided is a sucked roller, around which the Flor during deflection is performed. This roller makes the known solution consuming.
  • the present invention is thus based on a cross-stacker for forming a nonwoven fabric consisting of several pile layers, consisting of an endlessly circulating inlet belt, a counter-rotating and at the same speed endlessly circulating shroud and another counter-belt, wherein the pile to be laid first between inlet and shroud to a moving and a first guide roller for the infeed belt having superstructure promoted and there (following the deflection) is transferred from the shroud to the counter belt, inlet and counter belt are guided by two adjacent and a laying gap forming laying rollers of a laying carriage and the laying carriage above a the nonwoven to be laid receiving take-off belt is mounted transversely to this movable and periodically reciprocates.
  • the object of the present invention is to improve such a device, in particular in the direction of product quality.
  • the shroud is guided together with the infeed belt around a partial circumference of the first deflecting roller.
  • the pile is held in such a form-fitting and pressed in the deflection, whereby caused by centrifugal forces in the deflection area caused disturbances of the pile structure.
  • the first guide rollers of the upper carriage is assigned a further deflection roller, around which the shroud is guided.
  • the diameter of these two guide rollers By choosing the diameter of these two guide rollers, the partial circumference of the first guide roller, around which both belts keep the web pressed, can be made suitable, in particular, the wrap angle around the first guide roller can be selected. After the shroud releases the pile via this further deflection roller, it is transferred to the counter belt.
  • the looping of the first guide roller by the shroud for example.
  • Largest possible designed by a further deflection roller is used with the smallest possible diameter.
  • a further preferred embodiment of the invention provides for an improvement in the synchronization of the drives or the belt speeds of inlet and shroud.
  • both bands for example, in the edge region markings, which are scanned by frame-mounted sensors.
  • optical sensors that do not require such markings due to their principle of action.
  • the sensors may be formed as optical sensors which cooperate with corresponding markings (e.g., punches) on the belts.
  • nonwovens are guided by conveyor belts through machines and systems. Due to the necessary belt tension and / or occurring loads from processes or due to the net mass resulting in the band-leading rollers deflections. Particularly on roller coils or transfer points between belts, fast-running, oscillating, slender rollers are often desired for processes, which, however, often have only a low degree of flexural rigidity.
  • the necessary compensation can be realized at the support points of the intermediate support points by means of different spacers or by adjustable bearing points.
  • the further deflection roller OD can be subdivided in the longitudinal direction into a plurality of successive roller segments, which are adjustable differently with regard to the gap between the first deflection roller O.
  • the gap distance is increasingly reduced to the center of the bands and the furthest set at the outer roller sections, such that in operation due to the tension of the shroud a uniform or increasing to the center of the guide rollers gap distance between guide roller O and the further guide roller OD on the Length of the deflection roller OD.
  • a further deflection roller OD subdivided into roller segments is used, whose roller segments are set differently with respect to their gap width to the first deflection roller O.
  • the gap width between the deflection roller O and the further deflection roller OD is equalized over the length of the deflection roller OD by the belt tension during operation to a uniform gap width or increased from the edges of the shroud D to the center over a uniform gap level addition.
  • the segmented further deflection roller OD allows the setting of each individual roller segment, wherein in each case the angular position in a horizontal plane can be adjusted to the opposite first guide roller O.
  • a convex curvature in the manner of a polygon can be preset in which the gap width in the middle of the cover band to the opposite infeed belt is the lowest.
  • the middle refers to the width of the bands, the rolls or the pile.
  • the band tension of the shroud then causes the support structure to be elastically deformed for the individual roller segments, so that the gap width between the deflecting roller O and the further deflecting roller OD is the same over the entire length of the deflecting rollers, or even toward the middle over a uniform one Gap distance is increasingly increased.
  • the further deflection roller OD would then have a concave curvature in the direction of the adjacent deflection roller O.
  • a pile F is conveyed on a circulating endless infeed conveyor E into a crosslapper only shown in its essential components.
  • the direction of movement of the pile F and the infeed belt E is indicated by an arrow.
  • the pile F has the speed vF, with which the infeed conveyor E revolves.
  • the infeed conveyor E is tensioned and guided around deflecting rollers UE1, UE2, and also arranged around a superstructure OW (not shown) first deflecting roller O, which performs periodic reciprocating movements with the superstructure OW.
  • the shroud D is guided in the region of the pile entrance around a guide roller UD and runs essentially parallel (or at an acute angle) to the infeed conveyor E to the first guide roller O. of the superstructure OW.
  • the pile F is thus pressed (or increasingly pressed) between the infeed belt E and the shroud D on the route of the deflection roller UD - deflection roller O.
  • the infeed conveyor E runs around a laying roller LE, which is arranged in a laying carriage LW.
  • a counter belt G is guided around deflecting rollers UG1, UG2, also still in the carriage LW to another laying roller LG, which is mounted parallel to the laying roller LE of the infeed conveyor E.
  • the counter-belt G runs in the opposite direction to the intake belt E and at the same speed as this.
  • the two laying rollers LE, LG form a laying gap LS, through which the pile F leaves the laying carriage LW.
  • the laying carriage LW is located above a transverse to the Floriererichtüng moving drawstring AB, on which the laid to the web V layers of Flores F are stored by the periodic back and forth movements of the laying carriage LW.
  • the fleece V is conveyed away by the discharge belt AB orthogonal to the conveying direction of the Flores F.
  • the pile F is transferred within the upper carriage OW of the first guide roller O on the opposite belt G and then held in the region between the guide roller O and laying roller LG between the inlet and the opposite belt E, G.
  • the shroud D is guided around a partial circumference of the first guide roller O of the upper carriage, so runs partly together with the inlet belt to the first guide roller 0.
  • the shroud D is held by the pressed in the deflection around the guide roller 0 Flor F removed and led out of the superstructure OW.
  • the pile F is kept pressed between the belts guided together around the deflection roller O (inlet and shroud E, D).
  • the partial circumference of the first deflection roller O, around which the inlet and the cover band E, D run together, is given geometrically by the ratio of the radii of the two deflection rollers O, OD.
  • the smaller the radius of the shroud D from the guide roller O decreasing guide roller OD in relation to the guide roller O the larger the partial circumference of the first guide roller O can be designed to which inlet and shroud E, D together run, so hold the pile F pressed together.
  • the peripheral area of the deflection roller O, in which the pile F no longer covers by the shroud D, can be limited to a small value.
  • the disturbing the pile quality influences of the movement of uppercarriage OW in combination with the rotation of the guide rollers O are minimized.
  • FIG. 2 shows a development of the invention using sensors SE, SD, which cooperate with markings on the bands (inlet and shroud E, D) or are designed as optical sensors that can safely detect the speed without the use of markers due to their principle of action. It is both the inlet and the shroud E, D assigned a sensor SE, SD.
  • the two bands each have markings M at a certain distance in the edge region. These markings M are designed, for example, as punched-outs within the strip material.
  • the marks M in the bands E, D are in the FIG. 2 indicated. Furthermore, the pile F is not shown throughout.
  • the signals of the sensors SE, SD are fed to a controller, not shown, and recorded in this time course.
  • the controller is also in signal communication with the drives for the infeed and shroud E, D of the leader.
  • Fig. 3a shows a cross section through the segmented deflection roller OD, the belt forces F, and the resulting force F Res, which acts on the support frame for the storage of the roller segments.
  • Fig. 3b shows a plan view of the segmented deflection roller OD with four roller segments and their adjustability by a distance S1, S2, S3 at the support points to a preset bending line, which can be neutralized due to the belt tension towards a desired line, so that the gap width between the opposite deflection rollers O, OD is constant. If necessary, the bending line can even be overcompensated, so that the desired line can be a concave line.

Landscapes

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

Claims (15)

  1. Étaleur-nappeur pour la formation d'un non-tissé constitué de plusieurs couches de voile, comportant une bande d'entrée (E) tournant en continu, une bande de recouvrement (D) tournant en continu en sens opposé et à la même vitesse, ainsi qu'une autre bande opposée (G), le voile (F) à poser étant d'abord transporté entre la bande d'entrée (E) et la bande de recouvrement (D) vers un chariot supérieur (OW) mobile et comportant un premier rouleau de renvoi (0) pour la bande d'entrée (E), et à partir de là étant transféré sur la bande opposée (G), la bande d'entrée (E) et la bande opposée (G) étant guidées autour de deux rouleaux de pose (LE, LG) adjacents et formant une fente de pose (LS), d'un chariot de pose (LW), et le chariot de pose (LW) étant monté mobile transversalement à une bande de retrait (AB) au-dessus de celle-ci recevant le non-tissé à poser, et effectuant périodiquement un va-et-vient,
    caractérisé en ce que
    la bande de recouvrement (D), conjointement avec la bande d'entrée (E), est guidée autour d'un pourtour partiel du premier rouleau de renvoi (0), de telle sorte que le voile est maintenu pressé par conjugaison de forme dans la zone de renvoi.
  2. Étaleur-nappeur selon la revendication 1, caractérisé en ce qu'au premier rouleau de renvoi (0) du chariot supérieur (OW) est associé un autre rouleau de renvoi (OD), autour duquel est guidée la bande de recouvrement (D).
  3. Étaleur-nappeur selon la revendication 2, caractérisé en ce que l'autre rouleau de renvoi (OD) a un diamètre inférieur à celui du premier rouleau de renvoi (0).
  4. Étaleur-nappeur selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'à la bande d'entrée (E) et à la bande de recouvrement (D) sont associés des capteurs (SE, SD) qui coopèrent avec des marquages (M) sur la bande d'entrée (E) et la bande de recouvrement (D).
  5. Étaleur-nappeur selon la revendication 4, caractérisé en ce que les capteurs (SE, SD) associés à la bande d'entrée (E) et à la bande de recouvrement (D) sont des capteurs optiques qui détectent la vitesse par palpation de la surface de la bande.
  6. Étaleur-nappeur selon la revendication 4 ou 5, caractérisé en ce que des signaux de commande pour les systèmes d'entraînement des bandes (E, D) peuvent être générés à partir des signaux des capteurs (SE, SD).
  7. Étaleur-nappeur selon l'une quelconque des revendications 2 à 6, caractérisé en ce que l'autre rouleau de renvoi (OD) est divisé dans le sens longitudinal en plusieurs segments consécutifs, qui peuvent être réglés différemment quant à la fente entre le premier rouleau de renvoi (0).
  8. Étaleur-nappeur selon la revendication 7, caractérisé en ce que la largeur de la fente est réglée pour diminuer progressivement vers le milieu des bandes et est réglée au plus large au niveau des segments extérieurs du rouleau, de telle sorte qu'en cours de service, sous l'effet de la tension de la bande de recouvrement (D), il s'établit sur la longueur du rouleau de renvoi (0) une largeur de fente, uniforme ou croissante vers le milieu des rouleaux de renvoi, entre le rouleau de renvoi (OD) et l'autre rouleau de renvoi (OD).
  9. Procédé permettant la formation d'un non-tissé constitué de plusieurs couches de voile, au moyen du transport d'un voile (F) entrant sur une bande d'entrée (E) entre la bande d'entrée (E) tournant en continu et une bande de recouvrement (D) tournant en continu dans le sens inverse et à la même vitesse dans un étaleur-nappeur, le voile (F) à poser étant d'abord transporté entre la bande d'entrée (E) et la bande de recouvrement (D) vers un chariot supérieur (OW) mobile et occasionnant un premier renvoi avec un premier rouleau de renvoi (0) pour la bande d'entrée (E), et à partir de là étant transféré sur une bande opposée (G), la bande d'entrée (E) et la bande opposée (G) étant guidées autour de deux rouleaux de pose (LE, LG) adjacents et formant une fente de pose, d'un chariot de pose (LW), et le chariot de pose (LW) étant monté mobile transversalement à une bande de retrait (AB) au-dessus de ladite bande recevant le non-tissé à poser, et effectuant périodiquement un va-et-vient,
    caractérisé en ce que
    la bande de recouvrement (D), conjointement avec la bande d'entrée (E), est guidée autour d'une partie du pourtour du premier rouleau de renvoi (0), de telle sorte que le voile est maintenu pressé par conjugaison de forme dans la zone de renvoi (0).
  10. Procédé selon la revendication 9, caractérisé par le guidage de la bande de recouvrement (D) autour d'un autre rouleau de renvoi (OD) délimitant la partie du pourtour du premier rouleau de renvoi (0) du chariot supérieur (OW).
  11. Procédé selon la revendication 10, caractérisé en ce que l'autre rouleau de renvoi (OD) a un diamètre inférieur à celui du premier rouleau de renvoi (0).
  12. Procédé selon l'une quelconque des revendications 9 à 11, caractérisé en ce que pour synchroniser les vitesses de la bande d'entrée (E) et de la bande de recouvrement (D), on utilise des capteurs (SE, SD), qui sont associés à ces bandes et détectent la vitesse de la bande d'entrée (E) et de la bande de recouvrement (D).
  13. Procédé selon la revendication 12, caractérisé par la formation de signaux de commande pour les systèmes d'entraînement de la bande d'entrée (E) et de la bande de recouvrement (D) à partir des signaux des capteurs (SE, SD).
  14. Procédé selon l'une quelconque des revendications 10 à 13, caractérisé en ce que l'autre rouleau de renvoi (OD) est divisé en segments dont la largeur de fente est réglée différemment de celle du premier rouleau de renvoi (0).
  15. Procédé selon la revendication 14, caractérisé en ce que la largeur de la fente entre le rouleau de renvoi (O) et l'autre rouleau de renvoi (OD) est uniformisée à une largeur de fente homogène sur la longueur du rouleau de renvoi (OD) sous l'effet de la tension de la bande en cours de service ou est agrandie progressivement au-delà d'une largeur de fente homogène à partir des bords de la bande de recouvrement (D) vers le milieu.
EP20110758219 2010-11-02 2011-09-21 Machine de croisement de voile Active EP2635727B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010050029A DE102010050029A1 (de) 2010-11-02 2010-11-02 Kreuzleger
PCT/EP2011/066442 WO2012059272A1 (fr) 2010-11-02 2011-09-21 Machine de croisement de voile

Publications (2)

Publication Number Publication Date
EP2635727A1 EP2635727A1 (fr) 2013-09-11
EP2635727B1 true EP2635727B1 (fr) 2015-05-20

Family

ID=44654131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110758219 Active EP2635727B1 (fr) 2010-11-02 2011-09-21 Machine de croisement de voile

Country Status (4)

Country Link
EP (1) EP2635727B1 (fr)
CN (1) CN103221591B (fr)
DE (1) DE102010050029A1 (fr)
WO (1) WO2012059272A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013105029U1 (de) * 2013-11-08 2015-02-10 Autefa Solutions Germany Gmbh Vliesleger

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE322153B (fr) 1968-06-07 1970-03-23 Nordiska Maskinfilt Ab
DE9212215U1 (de) * 1992-09-10 1994-01-13 Autefa Maschinenfabrik GmbH, 86316 Friedberg Vorrichtung zur Herstellung eines Vlieses aus Fasermaterial
DE29518587U1 (de) 1995-11-23 1997-04-10 Autefa Maschinenfabrik GmbH, 86316 Friedberg Vliesleger
FR2840326B1 (fr) 2002-05-28 2004-07-30 Asselin Chariot mobile d'entree d'etaleur-nappeur et etaleur-nappeur equipe dudit chariot
CN2663472Y (zh) * 2003-12-01 2004-12-15 江苏迎阳无纺机械有限公司 铺网机的铺网机构
DE102006028448A1 (de) 2006-06-21 2007-12-27 ERKO Trützschler GmbH Kreuzleger
EP1975286A1 (fr) * 2007-03-30 2008-10-01 Oskar Dilo Maschinenfabrik KG Etaleur-nappeur

Also Published As

Publication number Publication date
WO2012059272A1 (fr) 2012-05-10
CN103221591B (zh) 2015-12-09
EP2635727A1 (fr) 2013-09-11
CN103221591A (zh) 2013-07-24
DE102010050029A1 (de) 2012-05-03

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