EP2918719B1 - Procédé d'homogénéisation de l'image de piqûre dans une étoffe aiguilletée - Google Patents

Procédé d'homogénéisation de l'image de piqûre dans une étoffe aiguilletée Download PDF

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Publication number
EP2918719B1
EP2918719B1 EP14159491.1A EP14159491A EP2918719B1 EP 2918719 B1 EP2918719 B1 EP 2918719B1 EP 14159491 A EP14159491 A EP 14159491A EP 2918719 B1 EP2918719 B1 EP 2918719B1
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EP
European Patent Office
Prior art keywords
needle
needling
woven fabric
needling unit
needle board
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP14159491.1A
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German (de)
English (en)
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EP2918719A1 (fr
Inventor
Johann Philipp Dilo
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.)
Oskar Dilo Maschinenfabrik KG
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Oskar Dilo Maschinenfabrik KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Oskar Dilo Maschinenfabrik KG filed Critical Oskar Dilo Maschinenfabrik KG
Priority to EP14159491.1A priority Critical patent/EP2918719B1/fr
Priority to EP15193801.6A priority patent/EP3000923A1/fr
Priority to US14/640,089 priority patent/US9260806B2/en
Priority to CN201510109430.1A priority patent/CN104911857B/zh
Priority to CN201510796410.6A priority patent/CN105401375B/zh
Publication of EP2918719A1 publication Critical patent/EP2918719A1/fr
Priority to US14/945,705 priority patent/US9567698B2/en
Application granted granted Critical
Publication of EP2918719B1 publication Critical patent/EP2918719B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/02—Needling machines with needles
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres

Definitions

  • the present invention relates to a method for homogenizing the stitching pattern in a needled nonwoven.
  • the present invention has for its object to uniform the arrangements of the puncture points in a needled nonwoven and thus to arrive at a homogeneous puncture pattern.
  • the adaptation of the at least one operating parameter and / or of the at least one structural parameter of the second needling device takes place by means of automatic control or regulation. This eliminates the need for the operator laborious manual adjustments and tedious test drives.
  • the at least one operating parameter of the second needling device comprises, for example, the advancement of the fleece per stroke of the at least one needle board. Since the variations in the transport speed of the web are relatively low, the adjustment is made primarily by adjusting the vertical stroke frequency of the drive for the needle board.
  • the at least one operating parameter of the second needling device may also include the phase of the vertical drive of the at least one needle board. In this way, a phase difference can be generated for the vertical drive of the needle board in the first needling device. By adjusting the phase, the puncturing positions of the needles in the second needling device can be varied, if at the same time the transport speed of the fleece by the second needling device remains constant.
  • the at least one structural parameter of the second needling device may comprise the distance to the first needling device in a transport direction of the fleece. It is particularly preferred if this distance is adjustable during operation of the system.
  • the at least one structural parameter of the second needling device can also comprise the lateral positioning of the at least one needle board in the second needling device transversely to a transport direction of the fleece. This is particularly advantageous if there are longitudinal strips in the nonwoven fabric after the first needling device.
  • the lateral displacement of the at least one needle board in the second needling device can take place during operation of the system.
  • the at least one structural parameter of the second needling device can also comprise the needle arrangement in the at least one needle board.
  • the variable needle arrangement almost any pattern can be compensated in the stitching image of the web.
  • the needles are horizontally displaceable in the region of the at least one needle board. In this way, an adjustment of the needle assembly in the needle board can be done in a particularly simple and guided manner.
  • the at least one needle board has a base plate and a plurality of needle modules held on the base plate, each of which has a carrier element equipped with one or a plurality of needles, the individual needle modules being horizontally displaceable in the needle board.
  • the carrier element may consist of a plastic injection-molded onto the needles.
  • the second needling device may comprise on a needle bar at least one magnetic plate which serves for detachably fixing needles, needle modules and / or needle board segments on the side opposite the needle points.
  • a particularly variable arrangement of the needles in the second needling device becomes possible.
  • This arrangement also provides the further advantage that the magnetic plate automatically attracts all needles, needle modules and / or Nadelbrettsegmente without further fasteners simultaneously.
  • the needles in the at least one needle board are vertically displaceable. In this way, certain needles in the second needling device at a given vertical stroke in the web to be consolidated engage, while other needles, which are pulled back a little further into the needle board, the vertical lift out of engagement with the fleece and thus do not create punctures in the fleece.
  • the detection of puncture defects in the nonwoven preferably takes place by means of an optoelectronic method, in particular by means of a digital scan of the surface of the needled nonwoven.
  • a CCD camera can be used.
  • the adaptation of the at least one operating parameter and / or the at least one structural parameter of the second needling device takes place with the aid of data stored in an electronic library.
  • the intelligent system can make a suggestion for the adaptation of the at least one operating parameter and / or the at least one structural parameter of the second needling device, or control or even regulate this adaptation.
  • a detection of the puncture homogeneity is carried out in the needle-punched fleece, for example by means of an optoelectronic method.
  • the result of the adaptation of the at least one operating parameter and / or the at least one structural parameter of the second needling device can be checked on the basis of the final result obtained.
  • the results of the detection of the puncture homogeneity in the needled nonwoven behind the second needling device can additionally be used for a fine adjustment of the at least one operating parameter and / or of the at least one structure parameter of the second needling device.
  • a feedback of this result takes place on the control device of the second needling device. In other words, a fully automatic, self-adjusting control is thereby achieved.
  • Fig. 1 is an example of a plant for carrying out the method according to the invention for homogenizing the Einich image in a needled nonwoven fabric shown schematically.
  • the system comprises a first needling device 2 and a second needling device 4, which are arranged in the transport direction T of the fleece 6 in series and serve for needling the fleece 6.
  • the first needling device 2 has at least one movable needle board 8, to which needles 10 for needling the supplied fleece 6 are fastened.
  • a take-off device 12 is provided for the fleece 6, here in the form of two draw-off rollers moved in opposite directions, which are driven at a speed v 1 .
  • the second needling device 4 likewise has at least one movable needle board 14, to which needles 16 are fastened for further needling of the fleece 6 which has been previously needled in the first needling device 2.
  • Downstream of the second needling device 4 is again a take-off device 18, preferably consisting of a pair of oppositely driven take-off rolls arranged, which withdraws the web 6 at a speed v 2 from the second needling device 4.
  • the withdrawal speed v 2 of the withdrawal device 18 is slightly greater than the withdrawal speed v 1 of the withdrawal device 12.
  • needleling in the context of the present invention may refer both to a needle machine with a single driven needle board, as well as a needle machine with two needle boards, one of which is above and one below the needled needle 6 and their needles thus towards each other and move away from each other.
  • needleling may also include a needle machine with a plurality of needle boards arranged in series above and / or below the web 6, as well as corresponding needle machines each having a plurality of pairs of above or below the web 6 arranged needle boards.
  • needleling device may also be directed to a single needle board or a particular pair of needle boards within a needle machine, even if the needle machine includes at least one other needle board adjacent to said needle board or boards.
  • needle device can designate both all needle units within a needle machine, but also only certain units within a plurality of needle units in the same needle machine.
  • inventive method is in all these cases, taking into account the respective different interpretation of the term “needling” executable.
  • a detector 20 for detecting puncture defects in the previously needled by the first needling 2 web 6 is arranged.
  • the detector 20 is therefore arranged downstream of the first needling device 2, either as in FIG Fig. 1 shown, in an area downstream of the trigger device 12, or else in a region between the first needling device 2 and the associated trigger device 12.
  • the detector 20 is preferably configured as an optoelectronic sensor, for example as a CCD camera, which performs a digital scan of the surface of the needle-punched fleece 6 performs.
  • the detector 20 is connected to a control device 22, which evaluates the results of the detection of the puncture defects in the fleece 6 and calculates a suitable adaptation of at least one operating parameter and / or at least one structural parameter of the second needling device 4, so that during further needling of the fleece 6 in the second needling device 4 at least parts of the puncture defects are selectively filled.
  • a control device 22 evaluates the results of the detection of the puncture defects in the fleece 6 and calculates a suitable adaptation of at least one operating parameter and / or at least one structural parameter of the second needling device 4, so that during further needling of the fleece 6 in the second needling device 4 at least parts of the puncture defects are selectively filled.
  • the provision or application of the information for the suitable adaptation of the at least one operating parameter and / or the at least one structural parameter of the second needling device 4 can be varied by the control device 22 Done way.
  • an operating instruction for an operator for the purposeful manual setting of the at least one operating parameter and / or of the at least one structural parameter of the second needling device 4 can take place on a screen 24.
  • the control device 22 automatically calculates not only a suitable adaptation of the at least one operating parameter and / or at least one structural parameter of the second needling device 4 but also the corresponding one based on stored data and laws stored in an electronic library Hiring also independently.
  • the screen 24 may serve in this latter case for displaying information to the operator or completely eliminated.
  • a further detector 26 for detecting the puncture homogeneity in the needle-punched fleece 6 is arranged, which serves to check the final needling needle result.
  • the detector 26 is preferably an optoelectronic sensor, for example a CCD camera, with which the homogeneity of the punctures in the needled nonwoven 6 can be detected.
  • the recordings of the detector 26 are output on a further screen 28 or on the first screen 24. It is particularly preferred if the results of the detector 26 are fed to the control device 22, whereby a control loop is produced.
  • the control device 22 can thus use this information when adapting the at least one operating parameter and / or the at least one structural parameter of the second needling device 4.
  • control device 22 only has to make a fine adjustment of the at least one operating parameter and / or of the at least one structural parameter of the second needling device 4 until a satisfactory result has been achieved in the finished needled web 6.
  • the process according to the invention proceeds as follows. First, the fleece 6 is transported through the first needling device 2, in which a first needling of the fleece 6 takes place.
  • the operating parameters of the first needling device 2 are set to a desired predetermined value. Subsequently, puncture defects in the fleece are detected in a region between the first needling device 2 and the second needling device 4 by means of the detector 20.
  • the first needle-punching device 2 is used beforehand needled 6 further needled in the second needling device 4, wherein at least one operating parameter and / or at least one structural parameter of the second needling 4 is adjusted on the basis of the result of the detection of puncture defects in the nonwoven 6 by means of the detector 20 such that the further Needling the fleece 6 in the second needling device 4 at least parts of the puncture defects are selectively filled.
  • the stitch pattern can be homogenized in needled web 6 and the product quality of the finished needled web improved.
  • a possible operating parameter of the second needling device 4, which can be adapted to homogenize the stitching pattern in the needled web 6, is the horizontal feed of the web 6 per vertical stroke of the at least one needle board 14 of the second needling device 4.
  • the speed v 2 of the trigger device 18 are influenced (see Fig. 1 ).
  • a higher or lower withdrawal speed v 2 changes at the same stroke frequency of the needle board 14, the ratio of feed to stroke in the second needling 4.
  • larger changes in the speed v 2 of the trigger 18 also inevitably affect the throughput of the overall machine, which is usually predetermined and should not be changed.
  • the adjustment of the operating parameter "feed per stroke" of the second needling device 4 will be effected primarily by varying the vertical stroke frequency of the second needling device 4.
  • the control device 22 can preferably be applied directly to the drive 30 (FIG. Fig. 2 ) of the needle board 14 of the second needling device 4.
  • the adaptation of the operating parameter "feed per stroke” can also be carried out while the system is in operation.
  • Fig. 2 an example of the embodiment of a second needling device 4 is shown.
  • at least one vertical connecting rod 32 is cyclically moved up and down via an eccentric drive 30.
  • the at least one vertical connecting rod 32 is usually hingedly connected to a needle bar 34 on which in turn the needle board 14 (in Fig. 2 not shown) is attached.
  • the second needling device 4 is designed as a double needle machine having two vertical connecting rod 32 and two needle bar 34 with attached needle boards 14 which are arranged in the transport direction T of the web 6 in series.
  • the movement of the two needle bars 34 takes place synchronously.
  • the stroke frequency f of the eccentric drive 30 is changed.
  • the second needling device 4 can also have a different number of vertical connecting rods 32 and needle bars 34 (in particular only one connecting rod and one needle bar).
  • the method according to the invention is also applicable to any other form of needling devices, in particular also those which show only little or no horizontal lifting component.
  • phase ⁇ of the vertical drive 30 of the at least one needle board 14 is interesting.
  • a phase shift of 180 ° in this context means that the second needling device 4 has reached its respective highest point of the vertical stroke exactly when the first needling device 2 has reached the lowest point of its vertical stroke.
  • a possible structural parameter of the second needling device 4, whose adaptation can lead to a homogenization of the stitching pattern of the needled web 6, is, for example, the distance of the second needling device 4 to the first needling device 2 in the transporting direction T of the web 6 Fig. 3a and 3b an exemplary arrangement for adjusting the position of the second needling device 4 in the transport direction T is shown.
  • Components of the second needling device 4 shown here additionally comprise an eccentric arrangement 36 with which a substantially horizontally arranged connecting rod 38 can be moved in the transport direction T of the fleece 6 or in the opposite direction and then fixed.
  • the connecting rod 38 is pivotally connected to the needle bar 34 in order not to restrict the operation of the second Vernadelungseinrichung 4.
  • Another structural parameter of the second needling device 4, which according to the invention can be adapted for homogenizing the stitching pattern of the needled web 6, is the lateral positioning of the at least one needle board 14 in the second needling device 4 transversely to the transport direction T of the web 6.
  • An example of a suitable displacement mechanism is in Fig. 4 shown.
  • the displacement mechanism comprises a spindle arrangement 40 with the aid of which the needle board 14 of the second needling device 4 can be displaced transversely to the transport direction T of the fleece 6.
  • the spindle arrangement 40 can preferably be driven via a drive controlled by the control device 22. This adjustment can be made while the system is in operation.
  • the displacement mechanism engages the needle bar 34 of the needling device 4, but it is also possible for the lateral displacement mechanism to be directly connected to a needle board 14 pneumatically clamped to the needle bar 34.
  • a further structural parameter of the second needling device 4, whose adaptation can lead to a homogenization of the stitching pattern in the needled web 6, is the needle arrangement in the at least one needle board 14 of the second needling device 4. Since a needle board contains many possible needle positions, the variability in the needle arrangement forms a particularly effective variant for improving the penetration pattern.
  • a first option for varying the needle assembly in the needle board 14 is the targeted partial assembly of a conventional needle board 14 with needles 16, which are introduced only in the calculated by the controller 22 holes while other holes of the needle board 14 remain free.
  • the targeted partial placement of the needle board 14 can be carried out manually or by means of a placement machine, which is controlled by the control device 22.
  • Another option for varying the needle arrangement in the needle board 14 is an arrangement in which the needles 16 are horizontally displaceable in the region of the at least one needle board 14. To implement this principle, there are several possibilities.
  • the illustrated needle board 14 here comprises a base plate 41, in which a plurality of horizontally extending slots 42 are arranged.
  • a plurality of horizontally extending slots 42 are arranged.
  • four slots are shown, two in a first direction and two further in a second direction perpendicular to the first direction.
  • the arrangement of the slots 42 in the needle board is arbitrary and the slots 42 may be in any number and extend in any direction.
  • needle modules 44 are arranged horizontally displaceable.
  • Each needle module 44 in this case comprises a carrier element 46, preferably made of plastic, which has one or more recesses 47 in which the shafts of one or more needles 16 are introduced.
  • the carrier element 46 may be injection-molded onto the needles 16, for example.
  • Each slot 42 preferably has in its wall portion a circumferential shoulder 48, as best in the broken area in the lower left in Fig. 5 you can see. On these shoulders 48 are projecting edge portions 50 of the support member 46. Further design possibilities of needle modules 44 are in EP 2 138 616 A1 or EP 2 138 617 A1 described, the content of which is hereby incorporated by reference in its entirety.
  • the individual needle modules 44 can now be displaced in the slots 42, and after reaching the correct sliding position, the needle modules 44 are moved by forces between the needle board 14 and the associated needle bar 34 (FIG. Fig. 1 ) clamped. How out Fig. 5 As can be seen, a plurality of needle modules 44 can also be arranged in a slot 42.
  • a magnetic plate 52 is attached to the needle bar 34.
  • the needle board 14 consists of several ferromagnetic needle board segments 54 which are fixable to the magnetic disk 52.
  • the Nadelbrettsegmente 54 are arranged transversely to the transport direction T of the web 6 and define between them respective slots 42 for receiving needle modules 44.
  • Each needle module 44 includes a plurality of needles 16 which are connected to a support member 46.
  • the support member 46 may, as in Fig. 6 shown, slightly projecting down from the associated slot 42, but it may also be completely received in the slot 42.
  • the support member 46 In its end region, the support member 46 has a widened head portion 56 which is slidably received and guided in a corresponding widened portion of the associated slot 42. Preferably, at least the head portion 56 is ferromagnetic. In the installed state, the head sections 56 of the needle modules 44 are then fixed to the magnetic plate 52.
  • EP 2 138 617 A1 or EP 2 138 616 A1 referenced, the contents of which should be fully incorporated by reference.
  • each needle module 44 comprises only one needle 16, but it may also comprise a plurality of needles 16.
  • Each needle module 44 has a head portion 56 which is ferromagnetic.
  • the needle modules 44 are displaceable or can be repositioned; when the magnetic plate 52 is switched on, they are fixed to the magnetic plate 52 at any point. Gaps between individual needle modules 44 can be bridged by intermediate pieces 58 in order to achieve stabilization.
  • the intermediate pieces 58 may preferably also be ferromagnetic.
  • Fig. 8a variant shown shows individual Nadelbrettsegmente 54, at least some of which are ferromagnetic and are fixed to a magnetic plate 52.
  • the needle board segments 54 have recesses 60 (see plan view in FIG Fig. 8b ), which serve for variable recording of individual needles 16.
  • the recesses 60 are in this case formed in an edge region of the respective needle board segment 54, so that the respective recess 60 in the installed state according to Fig. 8a is limited by the adjacent needle board segment 54.
  • the individual needles 16 are thus held between each two Nadelbrettsegmenten 54 and the magnetic plate 52 fixed in the recess 60.
  • a clamping force can be applied, for example via a pneumatically activated air hose 62. This is particularly necessary if some of the needle board segments 54 are not magnetically adhere to the magnetic disk 52, because they are made of plastic, for example or aluminum are formed.
  • a bracing device can also in the embodiment according to Fig. 7 be used.
  • variable needle arrangement in the needle board 14 is to move the needles 16 in at least one needle board 14 vertically.
  • An example of such a configuration is in Fig. 9 shown. In this case, the front right corner region of the needle board 14 is shown broken off, so that the arrangement of the needles 16 in the interior of the needle board 14 is visible.
  • the needle board 14 comprises three layers 64, 66 and 68, each having mutually aligned bores 70 for the individual needles 16.
  • the needles 16 are arranged vertically displaceable within these bores 70, in such a way that they extend in each case through the lower layer 68 and the middle layer 66 into the upper layer 64 of the needle board 14, wherein they different depths in the upper layer 64 of the needle board 14 can be pushed.
  • Fig. 9 are of the four illustrated needles 16, the two left needles less far into the upper layer 64 of the needle board 14 inserted as the two needles shown to the right thereof.
  • the fixation of the needles 16 takes place in the illustrated example by several levers 72 which apply a horizontal force on the middle layer 66 of the needle board 14 and thus passing through the middle layer 66 through needles 16 with respect to the upper plate 64 and the lower plate 68 of the Tighten needle boards 14.
  • the middle layer 66 of the needle board 14 may, as in the illustrated example, be integrally formed, or else segmented. With this arrangement, individual needles 16 can be adjusted in their height position and fixed there. The individual needles 16 are thus activated for engagement in the web 6 by being pulled down, and they are deactivated by being pushed upwards. There are several other possibilities of vertical displacement of the needles 16 in the needle board 14 conceivable.
  • variable needle assembly in the needle board can be performed only when the machine is stopped.
  • the operator is either displayed on a screen 24, the preferred arrangement of the needles 16 in the needle board 14 of the second Vernadelungseinrichung 4, which should set, or there are corresponding devices for automatically positioning the needles 16 in the needle board 14 by the controller 22 based on Results of the detector 20 driven.
  • the adjustment of only one of the mentioned parameters may be sufficient or advantageous, but in the context of the invention several of the mentioned parameters can also be adapted simultaneously.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Knitting Machines (AREA)

Claims (15)

  1. Procédé pour homogénéiser le modèle de point dans un non-tissé (6) aiguilleté, comprenant les étapes suivantes :
    la mise à disposition d'un premier dispositif d'aiguilletage (2) et d'un deuxième dispositif d'aiguilletage (4), qui sont disposés de manière alignée, dans lequel chaque dispositif d'aiguilletage (2, 4) présente une pluralité d'aiguilles (10, 16), fixées au niveau au moins d'une planche à aiguilles (8, 14) pouvant être déplacée, pour aiguilleter un non-tissé (6) amené ;
    l'aiguilletage du non-tissé (6) amené dans le premier dispositif d'aiguilletage (2), ce qui permet de produire une pluralité de points dans le non-tissé (6) ;
    la détection de points défectueux dans le non-tissé (6) dans une zone entre le premier dispositif d'aiguilletage (2) et le deuxième dispositif d'aiguilletage (4) ;
    la poursuite de l'aiguilletage du non-tissé (6) aiguilleté par le premier dispositif d'aiguilletage (2), dans le deuxième dispositif d'aiguilletage (4), dans lequel au moins un paramètre de fonctionnement et/ou au moins un paramètre de structure du deuxième dispositif d'aiguilletage (4) sont adaptés sur la base du résultat de la détection de points défectueux dans le non-tissé (6) de telle manière que lors de la poursuite de l'aiguilletage du non-tissé (6) dans le deuxième dispositif d'aiguilletage (4), au moins des parties des points défectueux sont comblées de manière ciblée.
  2. Procédé selon la revendication 1, caractérisé en ce que l'adaptation de l'au moins un paramètre de fonctionnement et/ou de l'au moins un paramètre de structure du deuxième dispositif d'aiguilletage (4) est effectuée au moyen d'une commande ou d'un réglage automatique.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'au moins un paramètre de fonctionnement du deuxième dispositif d'aiguilletage (4) comprend l'avancée du non-tissé par course de l'au moins une planche à aiguilles (14).
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'au moins un paramètre de fonctionnement du deuxième dispositif d'aiguilletage (4) comprend la phase (ϕ) d'un entraînement (30) vertical de l'au moins une planche à aiguilles (14).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'au moins un paramètre de structure du deuxième dispositif d'aiguilletage (4) comprend la distance par rapport au premier dispositif d'aiguilletage (2) dans une direction de transport (T) du non-tissé (6).
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'au moins un paramètre de structure du deuxième dispositif d'aiguilletage (4) comprend le positionnement latéral de l'au moins une planche à aiguilles (14) dans le deuxième dispositif d'aiguilletage (4) de manière transversale par rapport à une direction de transport (T) du non-tissé (6).
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'au moins un paramètre de structure du deuxième dispositif d'aiguilletage (4) comprend l'agencement d'aiguilles dans l'au moins une planche à aiguilles (14).
  8. Procédé selon la revendication 7, caractérisé en ce que les aiguilles (16) peuvent être coulissées de manière horizontale dans la zone de l'au moins une planche à aiguilles (14).
  9. Procédé selon la revendication 8, caractérisé en ce que l'au moins une planche à aiguilles (14) présente une plaque de base (41) et une multitude de modules d'aiguille (44) maintenus au niveau de la plaque de base (41), chacun de ces derniers présentant un élément de support (46), qui est équipé d'une aiguille ou d'une multitude d'aiguilles (16), dans lequel les divers modules d'aiguille (44) peuvent être coulissés de manière horizontale dans la planche à aiguilles (14).
  10. Procédé selon l'une quelconque des revendications 7 à 9, caractérisé en ce que le deuxième dispositif d'aiguilletage (4) présente au niveau d'une barre d'aiguilles (34) au moins une plaque aimantée (52), qui sert à fixer de manière amovible des aiguilles (16), des modules d'aiguille (44) et/ou des segments de planches à aiguilles (54) au niveau du côté faisant face aux points d'aiguille.
  11. Procédé selon la revendication 7, caractérisé en ce que les aiguilles (16) peuvent être coulissées de manière verticale dans l'au moins une planche à aiguilles (14).
  12. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la détection de points défectueux dans le non-tissé (6) est effectuée au moins un procédé optoélectronique, de préférence au moyen d'un balayage numérique de la surface du non-tissé aiguilleté.
  13. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'adaptation de l'au moins un paramètre de fonctionnement et/ou de l'au moins un paramètre de structure du deuxième dispositif d'aiguilletage (4) est effectuée en recourant à des données enregistrées dans une bibliothèque électronique.
  14. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une détection de l'homogénéité des points dans le non-tissé (6) aiguilleté est entreprise en aval du deuxième dispositif d'aiguilletage (4), de préférence au moyen d'un procédé optoélectronique.
  15. Procédé selon la revendication 14, caractérisé en ce que les résultats de la détection de l'homogénéité de points dans le non-tissé (6) aiguilleté en aval du deuxième dispositif d'aiguilletage (4) sont utilisés en vue d'une adaptation de précision de l'au moins un paramètre de fonctionnement et/ou de l'au moins un paramètre de structure du deuxième dispositif d'aiguilletage (4).
EP14159491.1A 2014-03-13 2014-03-13 Procédé d'homogénéisation de l'image de piqûre dans une étoffe aiguilletée Active EP2918719B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP14159491.1A EP2918719B1 (fr) 2014-03-13 2014-03-13 Procédé d'homogénéisation de l'image de piqûre dans une étoffe aiguilletée
EP15193801.6A EP3000923A1 (fr) 2014-03-13 2014-03-13 Planche a aiguilles
US14/640,089 US9260806B2 (en) 2014-03-13 2015-03-06 Method for homogenizing the stitching pattern in a needled fleece
CN201510109430.1A CN104911857B (zh) 2014-03-13 2015-03-12 用于均匀化针织绒头织物中的缝合图案的方法
CN201510796410.6A CN105401375B (zh) 2014-03-13 2015-03-12 针板
US14/945,705 US9567698B2 (en) 2014-03-13 2015-11-19 Needle board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14159491.1A EP2918719B1 (fr) 2014-03-13 2014-03-13 Procédé d'homogénéisation de l'image de piqûre dans une étoffe aiguilletée

Related Child Applications (2)

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EP15193801.6A Division EP3000923A1 (fr) 2014-03-13 2014-03-13 Planche a aiguilles
EP15193801.6A Division-Into EP3000923A1 (fr) 2014-03-13 2014-03-13 Planche a aiguilles

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EP2918719A1 EP2918719A1 (fr) 2015-09-16
EP2918719B1 true EP2918719B1 (fr) 2016-09-14

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EP15193801.6A Withdrawn EP3000923A1 (fr) 2014-03-13 2014-03-13 Planche a aiguilles
EP14159491.1A Active EP2918719B1 (fr) 2014-03-13 2014-03-13 Procédé d'homogénéisation de l'image de piqûre dans une étoffe aiguilletée

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EP (2) EP3000923A1 (fr)
CN (2) CN104911857B (fr)

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US20160069006A1 (en) 2016-03-10
US20150259836A1 (en) 2015-09-17
CN105401375A (zh) 2016-03-16
CN105401375B (zh) 2018-09-25
EP3000923A1 (fr) 2016-03-30
CN104911857A (zh) 2015-09-16
CN104911857B (zh) 2017-06-06
EP2918719A1 (fr) 2015-09-16
US9260806B2 (en) 2016-02-16
US9567698B2 (en) 2017-02-14

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