EP3901348A1 - Elliptic needle loom with sealed housing and box for guiding the crossmember - Google Patents
Elliptic needle loom with sealed housing and box for guiding the crossmember Download PDFInfo
- Publication number
- EP3901348A1 EP3901348A1 EP21169004.5A EP21169004A EP3901348A1 EP 3901348 A1 EP3901348 A1 EP 3901348A1 EP 21169004 A EP21169004 A EP 21169004A EP 3901348 A1 EP3901348 A1 EP 3901348A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- column
- drive means
- needle board
- 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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- 239000000835 fiber Substances 0.000 claims abstract description 9
- 230000002349 favourable effect Effects 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 5
- 229940082150 encore Drugs 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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Classifications
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- 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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H5/00—Seaming textile materials
Definitions
- the present invention relates to a needling machine for consolidating by needling a web or a web of fibers, in particular of nonwoven, comprising at least one needle board, in front of which the web or the web of fibers passes while moving in a direction of advance or machine direction or MD, and drive means configured to give the at least one needle board and / or the needles a reciprocating movement in the direction perpendicular or substantially perpendicular to the plane of the web or web so that the needles pass in one direction, then in the other, the web or the web of fibers, having an elliptical path.
- the needle board is there integral with a rod or column which extends along a longitudinal axis and which passes through the wall of a casing by means of a guide pot in which it slides, while having a movement at both vertical and in the MD direction to thereby give the needles an elliptical path movement, the pot being arranged so as to be able to pivot with respect to an axis extending in the CD direction (i.e. perpendicular to both in the vertical direction and in the MD direction).
- This prior art needling device has the advantage of being able to be received in large part, namely the major part of the column and the column drive means, in a sealed casing allowing lubrication of the various parts. and mechanical joints to ensure increased longevity and reliability of the installation.
- this needling device has the drawback of being of a complex structure, requiring in particular complicated means on the one hand to achieve a phase shift between two eccentric shafts which drive the column to give it an elliptical trajectory movement and on the other hand to achieve the seal between the tilting pot and the casing.
- a needling device is as defined in claim 1, improvements and advantageous embodiments being defined in the sub-claims.
- a system is thus obtained which is less complex than those of the prior art, in particular from a mechanical point of view, and which is also more compact. In particular, it is no longer necessary to carry out a phase shift between two eccentric shafts.
- the drive system according to the invention has the additional advantage that the needles always remain oriented vertically during their movement with an elliptical trajectory, thus reducing the risk of an unexpected jamming of the needling machine.
- the first drive means comprise two eccentric connecting rod-shaft systems.
- the device comprises two columns and two guide pots and the first drive means comprise two eccentric connecting rod-shaft systems, the heads of the connecting rods being articulated to the respective eccentric shafts and the feet of the connecting rods being each articulated to a respective column, the eccentric shafts rotating at the same speed, in opposite directions.
- the device comprises a column and a guide pot and the first drive means comprise two eccentric connecting rod-shaft systems, the eccentric shafts rotating at the same speed, in opposite directions, the eccentric shafts. heads of the connecting rods being articulated to the respective eccentric shafts and the feet of the connecting rods each being articulated to a T-rod, the column being mounted articulated to the intermediate rod of the T.
- the transverse drive means comprise a control device, which in itself constitutes an invention independent of the invention described above, but which can be combined with the latter, and which comprises: a drive rod adapted to be coupled to the needles and / or to the needle board and / or to an element integral with the board or the needles to impart to them a back and forth movement in a direction mainly parallel to the MD direction or parallel to the MD direction, an eccentric shaft and a connecting rod, the eccentric shaft driving the connecting rod in rotation along an axis of rotation, in particular which extends in the direction CD perpendicular to the MD direction and to the vertical direction, and the connecting rod being connected to the connecting rod by means of an element forming an intermediate lever pivoting relative to a pivot axis, in particular parallel to the axis of rotation of the eccentric shaft.
- the lever being articulated on the one hand to the connecting rod, in particular along an axis parallel to the pivot axis and at a distance from the latter, and on the other hand to the drive rod, in particular at a point at distance from the pivot axis, to impart thereto the back and forth movement in the direction MD.
- control device comprises means for adjusting the reciprocating stroke of the drive rod.
- the adjustment means adjust the distance between the pivot axis (24) of the lever (23) and the drive rod (27) and / or the distance between the pivot axis (24) of the lever ( 23) and the connecting rod (22).
- the adjustment means comprise a slide secured to the drive rod or to the pivot axis or to the axis of articulation of the rod to the lever, the slide and the lever being arranged to allowing the slide to slide relative to the lever between several positions, and fixing means for securing the slide to the lever in each of said several positions.
- the adjustment means comprise a guide slot in which the slide can slide between two extreme positions, in particular a high position in which the drive rod is located at the level of the pivot axis and a low position in which the drive rod is as far as possible from the pivot axis, thus allowing, depending on the position in the slot in which the slide is secured to the lever, an adjustment of the amplitude of the movement of back and forth. comes from the link, in particular between a zero amplitude (stationary link) and a maximum amplitude.
- the means for fixing the position of the slide in the slot comprise an adjustment rod connected to an adjustment rod, the adjustment rod being articulated to an auxiliary eccentric adjustment shaft, the rotation of the auxiliary adjustment shaft for adjusting and fixing the position of the slide in the slot.
- the means for fixing the position of the slide in the slot comprise an adjustment rod integral with a spiral cam comprising a disc driven in rotation by an auxiliary adjustment shaft in which a slot is formed. spiral along which the adjustment rod can move.
- the means for fixing the position of the slide in the slot comprise an adjustment rod connected to an adjustment rod driven by a jack, allowing linear movement of the adjustment rod, the adjustment rod being pivoting relative to the axis of the adjustment rod.
- FIG. 1 there is shown an embodiment of a needling machine according to the invention.
- the housing is shown in a sectional view, while the rest of the needling machine is shown in a front view.
- This needling machine comprises two needle boards 10 comprising needles 1 projecting from the underside of their respective board being arranged either in rows and columns, or in a random or pseudo-random manner, as is well known in the field. .
- Each needle board 10 is carried by a beam 2, called a movable beam.
- the respective beam 2 and board 10 are integral with one another, removably to allow, when the needles are worn and / or broken, to easily replace a board with a new board.
- the needles are intended to have a back and forth movement with an elliptical trajectory from top to bottom and from bottom to top to cross in one direction, then in the other, a web or a veil of fibers that we make walk past it in a feed direction or MD, i.e. from left to right in a horizontal direction to the figure.
- Two longitudinal columns 3 extending along a vertical longitudinal axis 11 perpendicular to the plane of the board are each connected to a respective mobile beam 2 by means of two respective vertical intermediate links 9.
- Each vertical link 9 is articulated, on the one hand, at its upper end to the lower end of a respective column 3 and, on the other hand, at its lower end to a point 17 of the upper part of a beam 2 respective mobile.
- First longitudinal drive means are provided to impart to each column 3 a rectilinear reciprocating movement in a direction parallel to the longitudinal axis 11, which remains vertical throughout the movement.
- a sealed casing 7 encloses the first drive means and a part of each column 3, the latter passing through the wall of the casing 7 by passing through respective guide pots 4.
- Each guide pot 4 is mounted fixed relative to the housing.
- Guide rings 18 are arranged on the inner wall of the guide pots 4, to ensure sliding and lubrication between each column 3 and the respective guide pot 4.
- the seal between the column 3 and the guide pot 4 is provided by a lip seal, not shown, fixed to the base of the guide pot.
- the first longitudinal drive means consist of two systems 6 with eccentric shafts, the shafts of which drive the heads of two connecting rods while rotating at the same speed in opposite directions.
- the feet of the two connecting rods are mounted articulated to a respective column.
- first vertical longitudinal drive means make it possible to impart to each column 3 a movement only back and forth along the vertical longitudinal axis.
- Second transverse drive means are also provided in the form of a main rod 8 arranged in the MD direction.
- One end of the link 8 is mounted articulated at the point 17 of articulation of the upper part of one of the beams 2 movable to the vertical link.
- This movable beam 2 is thus imparted to a back and forth movement in the direction MD, or substantially in the direction MD (as represented by the double arrow above the rod 8 at the figure 1 ).
- the other end of the connecting rod 8 is coupled to a control system, called an advance system, which may in particular be like those shown below in figures 3 to 5 .
- an auxiliary rod 20 is articulated on the one hand at the end of the main rod 8, in particular at point 17 of the mobile beam 2, and on the other hand to the other mobile part, thus also transmitting to the latter the movement of back and forth in direction MD.
- FIG. 2 there is shown another embodiment of a needling machine according to the invention.
- the housing is shown in a sectional view, while the rest of the needling machine is shown in a front view.
- This needling machine comprises a needle board 10 'comprising needles 1' projecting from the underside of their respective board being arranged either in rows and columns, or in a random or pseudo-random manner, as is well known in the domain.
- the needle board 10 ' is carried by a beam 2', called a movable beam.
- the beam 2 ′ and board 10 ′ are integral with one another, in a removable manner to allow, when the needles are worn and / or broken, to easily replace a board with a new board.
- the needles are intended to have a back and forth movement with an elliptical trajectory from top to bottom and from bottom to top to cross in one direction, then in the other, a web or a veil of fibers that we make walk past it in a feed direction or MD, i.e. from left to right in a horizontal direction to the figure.
- a longitudinal column 3 ' extending along a vertical longitudinal axis 11' perpendicular to the plane of the board, is connected to the mobile beam 2 'by means of a vertical intermediate link 9'.
- the vertical rod 9 ' is articulated, on the one hand, at its upper end to the lower end of the column 3' and, on the other hand, at its lower end to a point 17 of the upper part of the beam 2 'mobile.
- First longitudinal drive means are provided to impart to the column 3 ′ a rectilinear reciprocating movement in a direction parallel to the longitudinal axis 11 ′, which remains vertical throughout the movement.
- a sealed casing 7 ' encloses the first drive means and part of the column 3', the latter passing through the wall of the casing 7 'by passing through a respective guide pot 4'.
- the guide pot 4 ' is mounted fixed relative to the housing.
- the column 3 ' during its vertical reciprocating movement, slides inside the guide pot 4'.
- Guide rings 18 are arranged on the inner wall of the guide pot 4 ', to ensure sliding and lubrication between the column 3' and the guide pot 4 '.
- the seal between the column 3 'and the guide pot 4' is provided by a lip seal, not shown, fixed to the base of the guide pot.
- the first longitudinal drive means consist of two systems 6 'with eccentric shafts, the shafts of which drive the heads of two connecting rods turning at the same speed in opposite directions.
- the feet of the two connecting rods are mounted articulated to a respective one of the lateral branches of a T-rod 19, while the main branch or rod of the T-rod is mounted articulated to the column 3 '.
- These first vertical longitudinal drive means make it possible to impart to the column 3 ′ a movement only back and forth along the vertical longitudinal axis.
- Second transverse drive means are also provided in the form of a main link 8 ′ arranged in the MD direction.
- One end of the link 8 ' is mounted articulated at the point 17' of articulation of the upper part of the beam 2 'movable to the vertical link.
- This movable beam 2 ' is thus imparted to a back and forth movement in the direction MD, or substantially in the direction MD (as represented by the double arrow above the rod 8' at the figure 2 ).
- the other end of the rod 8 ′ is coupled to a control system, called the advance system, which may in particular be like those shown below in figures 3 to 5 .
- FIG. 3 Of figures 3 , 3A , 3B , 4A , 4B and 5 , there are shown embodiments of a system that can be used to control the reciprocating movement in the MD direction of the main link 8 of the embodiment of the figure 1 .
- this control system is not per se necessary and other systems for controlling the reciprocating movement in the MD direction of the link 8 known in the prior art can be used, for example systems like those described in EP-A1-1736586 , EP-B1-3372716 , FR2738846 , US6161269 and the like.
- the system comprises an eccentric shaft 21 coupled to a connecting rod 22 mounted articulated directly to a vertical lever 23 in one piece (or possibly consisting of several elements which are not articulated to each other) arranged to pivot relative to an axis 24 of fixed pivoting offset, in the vertical direction, below the axis of articulation of the connecting rod 22 to the lever 23.
- a connecting rod 27 is coupled directly to the lever 23.
- the connecting rod 27 is integral with a slide 25 and of one end of a rod 26, the axis of which extends parallel to the axis 24.
- the lever can be adjusted by means of an adjustment system consisting of an auxiliary eccentric shaft 29 for adjustment and a rod 28 for adjustment.
- the adjusting rod 28 is hingedly coupled at its upper end to the eccentric shaft (or crankshaft) 29, while its lower end is pivotally mounted relative to the axis of the rod 26.
- the lever has an opening in the form of a slot 30, in which slides the slide 25 integral in translation with the rod 26.
- the amplitude of the back and forth movement of the rod 27 can be varied both when running and at a standstill, the movement reflected from the movement of the crankshaft 21 and of the rod 22 acting on the lever 23.
- the link 27 it can be secured or articulated to the main link of the embodiment of figures 1 and 2 .
- the distance between the connecting rod 22 and the drive rod 27 is adjusted by adjusting the position along the slot 30 of the axis 31 of articulation of the connecting rod 22 on the lever 23 , which makes it possible to adjust the distance between the axis 31 of articulation of the connecting rod 22 and the fixed pivot axis 24 of the lever, and therefore also to adjust the distance between the axis 31 and the connecting rod 27, the distance between the rod 27 and the axis 24 being, in this variant, fixed, while in the embodiment of the figure 3 , it is the distance between the axis 31 and the axis 24 which is fixed.
- FIG. 3B there is shown a variant of the arrangement of the figure 3 .
- the distance between the connecting rod 22 and the driving rod 27 is adjusted by adjusting the position along a slot 30 'formed in the lever 23 of the fixed pivot axis 24 of the the sink.
- the axis 24 of the lever is integral with a slide 25 'slidably mounted in the slot 30'.
- the connecting rod 22 is articulated to the lever 23 along an articulation axis 31 which is in a fixed position on the lever 23.
- the articulation end of the connecting rod 27 to the lever 23 is in a fixed position (as in the embodiment of the figure 3 ).
- the rod 26 coming from the adjusting rod 28 is articulated to the lever 23 in a fixed position.
- a spiral cam is used, consisting of a disc 40 in which is formed a spiral-shaped slot along which the rod 26 can move.
- the rod 26 follows the profile of the slot 30, which has the effect of moving the rod 26 and therefore the slide 25 along the slot.
- a maximum given stroke of back and forth is obtained for the rod 27.
- FIG. 5 there is shown yet another embodiment, in which a cylinder 41 is used instead of the crankshaft 29 of the figure 3 , the rest of the embodiment being identical.
Abstract
Dispositif d'aiguilletage pour consolider par aiguilletage un voile ou une nappe de fibres, notamment de non-tissé, comportant :- une ou plusieurs planche(s) à aiguilles ayant un champ d'aiguilles ou des champs d'aiguilles respectifs ;- une ou plusieurs colonne(s) d'axe longitudinal, notamment vertical, couplée(s) à la planche à aiguilles ou à une planche à aiguilles respective ;- des moyens d'entraînement configurés pour impartir à la ou chaque planche à aiguilles et/ou aux aiguilles un mouvement de va-et-vient de sorte que les aiguilles aient une trajectoire elliptique pour traverser dans un sens, puis dans l'autre, le voile ou la nappe de fibres qui passent devant elle suivant une direction machine ou d'amenée MD pour la consolider ;- un carter étanche dans lequel sont reçus une partie de la ou de chaque colonne et des moyens d'entraînement ; et- un ou plusieurs pot(s) de guidage disposé(s) dans une ouverture du carter étanche,la ou chaque colonne traversant le carter par l'intermédiaire du ou d'un pot de guidage en y coulissant, est caractérisé en ce queles moyens d'entrainement comportent des moyens d'entraînement longitudinal configurés pour impartir à la ou chaque colonne un mouvement de va-et-vient rectiligne suivant une direction parallèle à l'axe longitudinal, notamment verticale ;la ou chaque planche à aiguille étant montée basculante par rapport à la colonne ou une colonne respective; etles moyens d'entraînement comportent des moyens d'entrainement transversal configurés pour impartir à un point de la ou de chaque planche à aiguille ou d'un élément solidaire de la ou de chaque planche à aiguilles un mouvement de va-et-vient suivant une direction principalement parallèle à la direction MD.Needling device for consolidating by needling a web or a web of fibers, in particular nonwoven, comprising: - one or more needle board (s) having a needle field or respective needle fields; - a or several column (s) of longitudinal axis, in particular vertical, coupled to the needle board or to a respective needle board; - drive means configured to impart to the or each needle board and / or with the needles a back and forth movement so that the needles have an elliptical path to cross in one direction, then in the other, the web or the sheet of fibers which pass in front of it in a machine or feed direction MD to consolidate it; a sealed casing in which part of the or each column and the drive means are received; and- one or more guide pot (s) arranged in an opening of the sealed casing, the or each column passing through the casing by means of the or a guide pot by sliding therein, is characterized in that drive means comprise longitudinal drive means configured to impart to the or each column a rectilinear reciprocating movement in a direction parallel to the longitudinal axis, in particular vertical; the or each needle board being tiltably mounted relative to the column or a respective column; andthe drive means comprise transverse drive means configured to impart to a point of the or each needle board or an element integral with the or each needle board a back and forth movement in a direction mainly parallel to MD direction.
Description
La présente invention se rapporte à une aiguilleteuse pour consolider par aiguilletage un voile ou une nappe de fibres, notamment de non-tissé, comportant au moins une planche à aiguilles, en face de laquelle le voile ou la nappe de fibres passe en se déplaçant dans une direction d'avance ou direction machine ou MD, et des moyens d'entraînement configurés pour donner à la au moins une planche à aiguilles et/ou aux aiguilles un mouvement en va et vient dans la direction perpendiculaire ou sensiblement perpendiculaire au plan de la nappe ou du voile pour que les aiguilles traversent dans un sens, puis dans l'autre, le voile ou la nappe de fibres, en ayant une trajectoire elliptique.The present invention relates to a needling machine for consolidating by needling a web or a web of fibers, in particular of nonwoven, comprising at least one needle board, in front of which the web or the web of fibers passes while moving in a direction of advance or machine direction or MD, and drive means configured to give the at least one needle board and / or the needles a reciprocating movement in the direction perpendicular or substantially perpendicular to the plane of the web or web so that the needles pass in one direction, then in the other, the web or the web of fibers, having an elliptical path.
On connaît, par exemple de
Ce dispositif d'aiguilletage de l'art antérieur présente l'avantage de pouvoir être reçu en grande partie, à savoir la majeure partie de la colonne et les moyens d'entraînement de la colonne, dans un carter étanche permettant une lubrification des différentes pièces et articulations mécaniques pour garantir une longévité et une fiabilité accrues de l'installation.This prior art needling device has the advantage of being able to be received in large part, namely the major part of the column and the column drive means, in a sealed casing allowing lubrication of the various parts. and mechanical joints to ensure increased longevity and reliability of the installation.
Ce dispositif d'aiguilletage présente cependant l'inconvénient d'être de structure complexe, nécessitant notamment des moyens compliqués d'une part pour réaliser un déphasage entre deux arbres à excentrique qui entraînent la colonne pour lui donner un mouvement à trajectoire elliptique et d'autre part pour réaliser l'étanchéité entre le pot basculant et le carter.However, this needling device has the drawback of being of a complex structure, requiring in particular complicated means on the one hand to achieve a phase shift between two eccentric shafts which drive the column to give it an elliptical trajectory movement and on the other hand to achieve the seal between the tilting pot and the casing.
On aimerait avoir à disposition un dispositif d'aiguilletage qui présente le même avantage de pouvoir être reçu dans un carter étanche permettant d'assurer une bonne lubrification des différentes pièces d'entraînement de la colonne, tout en étant cependant de structure plus compacte et moins complexe, et qui en outre présente une meilleure fiabilité, et en particulier soit moins susceptible d'être bloqué de manière inopinée pendant son fonctionnement.We would like to have available a needling device which has the same advantage of being able to be received in a sealed casing making it possible to ensure good lubrication of the various drive parts of the column, while at the same time being, however, of a more compact and less complex structure, and which also has better reliability, and in particular is less likely to be blocked unexpectedly during its operation.
Suivant l'invention, un dispositif d'aiguilletage est tel que défini à la revendication 1, des perfectionnements et modes de réalisation avantageux étant définis aux sous revendications.According to the invention, a needling device is as defined in
Suivant l'invention, on obtient ainsi un système moins complexe que ceux de l'art antérieur, notamment d'un point de vue mécanique, et qui en outre est plus compact. En particulier, il n'est plus nécessaire de réaliser un déphasage entre deux arbres à excentrique. Dans le même temps, on conserve la possibilité d'intégrer une grande partie des moyens d'entraînement et de la au moins une colonne dans un carter étanche permettant la lubrification des différentes pièces mécaniques pour assurer ainsi une grande longévité et fiabilité de l'installation. En outre, le système d'entraînement suivant l'invention présente l'avantage supplémentaire que les aiguilles restent toujours orientées à la verticale pendant leur mouvement à trajectoire elliptique, diminuant ainsi le risque d'un blocage inopiné de l'aiguilleteuse.According to the invention, a system is thus obtained which is less complex than those of the prior art, in particular from a mechanical point of view, and which is also more compact. In particular, it is no longer necessary to carry out a phase shift between two eccentric shafts. At the same time, we keep the possibility of integrating a large part of the drive means and of the at least one column in a sealed casing allowing the lubrication of the various mechanical parts to thus ensure a great longevity and reliability of the installation. . In addition, the drive system according to the invention has the additional advantage that the needles always remain oriented vertically during their movement with an elliptical trajectory, thus reducing the risk of an unexpected jamming of the needling machine.
Suivant un mode de réalisation préféré de l'invention, les premiers moyens d'entraînement comportent deux systèmes bielle-arbre à excentrique.According to a preferred embodiment of the invention, the first drive means comprise two eccentric connecting rod-shaft systems.
Suivant un mode de réalisation favorable, le dispositif comporte deux colonnes et deux pots de guidage et les premiers moyens d'entraînement comportent deux systèmes bielle-arbre à excentrique, les têtes des bielles étant articulées aux arbres à excentrique respectifs et les pieds des bielles étant chacun articulés à une colonne respective, les arbres à excentrique tournant à la même vitesse, dans des sens opposés.According to a favorable embodiment, the device comprises two columns and two guide pots and the first drive means comprise two eccentric connecting rod-shaft systems, the heads of the connecting rods being articulated to the respective eccentric shafts and the feet of the connecting rods being each articulated to a respective column, the eccentric shafts rotating at the same speed, in opposite directions.
Suivant un autre mode de réalisation favorable, le dispositif comporte une colonne et un pot de guidage et les premiers moyens d'entraînement comportent deux systèmes bielle-arbre à excentrique, les arbres à excentrique tournant à la même vitesse, dans des sens opposés, les têtes des bielles étant articulées aux arbres à excentrique respectifs et les pieds des bielles étant chacun articulés à une biellette en T, la colonne étant montée articulée à la tige intermédiaire du T.According to another favorable embodiment, the device comprises a column and a guide pot and the first drive means comprise two eccentric connecting rod-shaft systems, the eccentric shafts rotating at the same speed, in opposite directions, the eccentric shafts. heads of the connecting rods being articulated to the respective eccentric shafts and the feet of the connecting rods each being articulated to a T-rod, the column being mounted articulated to the intermediate rod of the T.
Suivant un mode de réalisation avantageux, les moyens d'entraînement transversal comportent un dispositif de commande, qui constitue en soi une invention indépendante de l'invention décrite ci-dessus, mais qui peut être combinée avec celle-ci, et qui comporte : une biellette d'entraînement apte à être couplée aux aiguilles et/ou à la planche à aiguille et/ou à un élément solidaire de la planche ou des aiguilles pour leur impartir un mouvement de va et vient suivant une direction principalement parallèle à la direction MD ou parallèle à la direction MD, un arbre à excentrique et une bielle, l'arbre à excentrique entraînant la bielle en rotation suivant un axe de rotation, notamment qui s'étend suivant la direction CD perpendiculaire à la direction MD et à la direction verticale, et la bielle étant reliée à la biellette par l'intermédiaire d'un élément formant levier intermédiaire pivotant par rapport à un axe de pivotement, notamment parallèle à l'axe de rotation de l'arbre à excentrique, le levier étant articulé d'une part à la bielle, notamment suivant un axe parallèle à l'axe de pivotement et à distance de celui-ci, et d'autre part à la biellette d'entraînement, notamment en un point à distance de l'axe de pivotement, pour impartir à celle-ci le mouvement de va et vient suivant la direction MD.According to an advantageous embodiment, the transverse drive means comprise a control device, which in itself constitutes an invention independent of the invention described above, but which can be combined with the latter, and which comprises: a drive rod adapted to be coupled to the needles and / or to the needle board and / or to an element integral with the board or the needles to impart to them a back and forth movement in a direction mainly parallel to the MD direction or parallel to the MD direction, an eccentric shaft and a connecting rod, the eccentric shaft driving the connecting rod in rotation along an axis of rotation, in particular which extends in the direction CD perpendicular to the MD direction and to the vertical direction, and the connecting rod being connected to the connecting rod by means of an element forming an intermediate lever pivoting relative to a pivot axis, in particular parallel to the axis of rotation of the eccentric shaft. e, the lever being articulated on the one hand to the connecting rod, in particular along an axis parallel to the pivot axis and at a distance from the latter, and on the other hand to the drive rod, in particular at a point at distance from the pivot axis, to impart thereto the back and forth movement in the direction MD.
De préférence, le dispositif de commande comporte des moyens de réglage de la course de va et vient de la biellette d'entraînement.Preferably, the control device comprises means for adjusting the reciprocating stroke of the drive rod.
En particulier, les moyens de réglage règlent la distance entre l'axe (24) de pivotement du levier (23) et la biellette (27) d'entraînement et/ou la distance entre l'axe (24) de pivotement du levier (23) et la bielle (22).In particular, the adjustment means adjust the distance between the pivot axis (24) of the lever (23) and the drive rod (27) and / or the distance between the pivot axis (24) of the lever ( 23) and the connecting rod (22).
Suivant un mode de réalisation préféré, les moyens de réglage comportent un coulisseau solidaire de la biellette d'entraînement ou de l'axe de pivotement ou de l'axe d'articulation de la bielle au levier, le coulisseau et le levier étant agencés pour permettre au coulisseau de coulisser par rapport au levier entre plusieurs positions, et des moyens de fixation pour solidariser le coulisseau au levier dans chacune des dites plusieurs positions.According to a preferred embodiment, the adjustment means comprise a slide secured to the drive rod or to the pivot axis or to the axis of articulation of the rod to the lever, the slide and the lever being arranged to allowing the slide to slide relative to the lever between several positions, and fixing means for securing the slide to the lever in each of said several positions.
Suivant un mode de réalisation très favorable, les moyens de réglage comporte une fente de guidage dans laquelle le coulisseau peut coulisser entre deux positions extrêmes, notamment une position haute dans laquelle la biellette d'entraînement se trouve au niveau de l'axe de pivotement et une position basse dans laquelle la biellette d'entraînement est la plus éloignée possible de l'axe de pivotement, permettant ainsi, en fonction de la position dans la fente dans laquelle le coulisseau est solidarisé au levier, un réglage de l'amplitude du mouvement de va et vient de la biellette, notamment entre une amplitude nulle (biellette immobile) et une amplitude maximale.According to a very favorable embodiment, the adjustment means comprise a guide slot in which the slide can slide between two extreme positions, in particular a high position in which the drive rod is located at the level of the pivot axis and a low position in which the drive rod is as far as possible from the pivot axis, thus allowing, depending on the position in the slot in which the slide is secured to the lever, an adjustment of the amplitude of the movement of back and forth. comes from the link, in particular between a zero amplitude (stationary link) and a maximum amplitude.
Suivant un mode de réalisation préféré, les moyens de fixation de la position du coulisseau dans la fente comportent une tige de réglage reliée à une biellette de réglage, la biellette de réglage étant articulée à un arbre à excentrique auxiliaire de réglage, la rotation de l'arbre auxiliaire de réglage permettant le réglage et la fixation de la position du coulisseau dans la fente.According to a preferred embodiment, the means for fixing the position of the slide in the slot comprise an adjustment rod connected to an adjustment rod, the adjustment rod being articulated to an auxiliary eccentric adjustment shaft, the rotation of the auxiliary adjustment shaft for adjusting and fixing the position of the slide in the slot.
Suivant un autre mode de réalisation favorable, les moyens de fixation de la position du coulisseau dans la fente comportent une tige de réglage solidaire d'une came à spirale comportant un disque entraîné en rotation par un arbre auxiliaire de réglage dans lequel est ménagé une fente en spirale le long de laquelle la tige de réglage peut se déplacer.According to another favorable embodiment, the means for fixing the position of the slide in the slot comprise an adjustment rod integral with a spiral cam comprising a disc driven in rotation by an auxiliary adjustment shaft in which a slot is formed. spiral along which the adjustment rod can move.
Suivant encore une autre variante favorable, les moyens de fixation de la position du coulisseau dans la fente comportent une tige de réglage reliée à une biellette de réglage entraînée par un vérin, permettant un déplacement linéaire de la biellette de réglage, la biellette de réglage étant montée pivotante par rapport à l'axe de la tige de réglage.According to yet another favorable variant, the means for fixing the position of the slide in the slot comprise an adjustment rod connected to an adjustment rod driven by a jack, allowing linear movement of the adjustment rod, the adjustment rod being pivoting relative to the axis of the adjustment rod.
A titre d'exemple, on décrit maintenant des modes de réalisation préférés de l'invention en se reportant aux dessins dans lesquels :
- La
figure 1 est une vue d'ensemble de face partiellement en coupe, d'un dispositif d'aiguilletage suivant un mode de réalisation de l'invention ; - La
figure 2 est une vue d'ensemble de face partiellement en coupe, d'un dispositif d'aiguilletage suivant un autre mode de réalisation de l'invention ; - La
figure 3 est une vue d'ensemble en perspective du système d'entraînement ou de commande de la biellette auxiliaire ; - La
figure 3A est une vue d'ensemble en perspective d'un autre mode de réalisation d'un système de commande suivant l'invention ; - La
figure 3B est une vue d'ensemble en perspective d'encore un autre mode de réalisation d'un système de commande suivant l'invention ; - La
figure 4A est une vue d'ensemble d'une variante du système de lafigure 3 ; - La
figure 4B est une vue de l'arrière de la variante de lafigure 4A ; et - La
figure 5 est une vue d'ensemble d'encore une autre variante du système desfigures 3 ,4A et4B .
- The
figure 1 is an overall front view, partially in section, of a needling device according to one embodiment of the invention; - The
figure 2 is an overall front view, partially in section, of a needling device according to another embodiment of the invention; - The
figure 3 is an overall perspective view of the drive or control system of the auxiliary link; - The
figure 3A is an overall perspective view of another embodiment of a control system according to the invention; - The
figure 3B is a perspective overview of yet another embodiment of a control system according to the invention; - The
figure 4A is an overview of a variant of the system of thefigure 3 ; - The
figure 4B is a rear view of the variant of thefigure 4A ; and - The
figure 5 is an overview of yet another variant of the system offigures 3 ,4A and4B .
A la
Cette aiguilleteuse comporte deux planches 10 à aiguilles comportant des aiguilles 1 faisant saillie de la face inférieure de leur planche respective en étant agencées soit suivant des rangées et des colonnes, soit de manière aléatoire ou pseudo-aléatoire, comme il est bien connu dans le domaine. Chaque planche 10 à aiguilles est portée par une poutre 2, dite poutre mobile. Les poutre 2 et planche 10 respectives sont solidaires l'une de l'autre, de manière amovible pour permettre, lorsque les aiguilles sont usées et/ou cassées, de remplacer facilement une planche par une nouvelle planche. Les aiguilles sont destinées à avoir un mouvement de va-et-vient à trajectoire elliptique de haut en bas et de bas en haut pour traverser dans un sens, puis dans l'autre, une nappe ou un voile de fibres que l'on fait passer devant elle dans une direction d'amenée ou MD, à savoir de gauche à droite en direction horizontale à la figure.This needling machine comprises two
Deux colonnes 3 longitudinales s'étendant suivant un axe 11 longitudinal vertical perpendiculaire au plan de la planche sont chacune reliée à une poutre 2 mobile respective par l'intermédiaire de deux biellettes 9 intermédiaires verticales respectives.Two
Chaque biellette 9 verticale est articulée, d'une part, à son extrémité supérieure à l'extrémité inférieure d'une colonne 3 respective et, d'autre part, à son extrémité inférieure à un point 17 de la partie supérieure d'une poutre 2 mobile respective.Each
Des premiers moyens d'entraînement longitudinal sont prévus pour impartir à chaque colonne 3 un mouvement de va et vient rectiligne suivant une direction parallèle à l'axe 11 longitudinal, qui reste vertical pendant tout le mouvement.First longitudinal drive means are provided to impart to each column 3 a rectilinear reciprocating movement in a direction parallel to the
Un carter 7 étanche enferme les premiers moyens d'entraînement et une partie de chaque colonne 3, ces dernières traversant la paroi du carter 7 en traversant des pots 4 de guidage respectifs. Chaque pot 4 de guidage est monté fixe par rapport au carter. Chaque colonne 3, lors de son mouvement en va et vient vertical, coulisse à l'intérieur du pot 4 de guidage respectif. Des bagues 18 de guidage sont disposées sur la paroi intérieure des pots 4 de guidage, pour assurer le glissement et la lubrification entre chaque colonne 3 et le pot 4 de guidage respectif. L'étanchéité entre la colonne 3 et le pot 4 de guidage est assuré par un joint d'étanchéité à lèvre non représenté fixé à la base du pot de guidage.A sealed
Les premiers moyens d'entraînement longitudinal sont constitués de deux systèmes 6 à arbres à excentrique, dont les arbres entraînent les têtes de deux bielles en tournant à même vitesse dans des sens opposés. Les pieds des deux bielles sont montés articulés à une colonne respective.The first longitudinal drive means consist of two
Ces premiers moyens d'entraînement longitudinal vertical permettent d'impartir à chaque colonne 3 un mouvement uniquement en va-et-vient suivant l'axe longitudinal vertical.These first vertical longitudinal drive means make it possible to impart to each column 3 a movement only back and forth along the vertical longitudinal axis.
Il est prévu en outre des deuxièmes moyens d'entraînement transversal sous la forme d'une biellette 8 principale disposée suivant la direction MD. Une extrémité de la biellette 8 est montée articulée au point 17 d'articulation de la partie supérieure de l'une des poutres 2 mobiles à la biellette verticale. Il est ainsi imparti à cette poutre mobile 2 un mouvement en va et vient suivant la direction MD, ou sensiblement suivant la direction MD (comme représenté par la double flèche au-dessus de la biellette 8 à la
A la
Cette aiguilleteuse comporte une planche 10' à aiguilles comportant des aiguilles 1' faisant saillie de la face inférieure de leur planche respective en étant agencées soit suivant des rangées et des colonnes, soit de manière aléatoire ou pseudo-aléatoire, comme il est bien connu dans le domaine. La planche 10' à aiguilles est portée par une poutre 2', dite poutre mobile. Les poutre 2' et planche 10' sont solidaires l'une de l'autre, de manière amovible pour permettre, lorsque les aiguilles sont usées et/ou cassées, de remplacer facilement une planche par une nouvelle planche. Les aiguilles sont destinées à avoir un mouvement de va-et-vient à trajectoire elliptique de haut en bas et de bas en haut pour traverser dans un sens, puis dans l'autre, une nappe ou un voile de fibres que l'on fait passer devant elle dans une direction d'amenée ou MD, à savoir de gauche à droite en direction horizontale à la figure.This needling machine comprises a needle board 10 'comprising needles 1' projecting from the underside of their respective board being arranged either in rows and columns, or in a random or pseudo-random manner, as is well known in the domain. The needle board 10 'is carried by a beam 2', called a movable beam. The
Une colonne 3' longitudinale, s'étendant suivant un axe 11' longitudinal vertical perpendiculaire au plan de la planche, est reliée à la poutre 2' mobile par l'intermédiaire d'une biellette 9' intermédiaire verticale.A longitudinal column 3 ', extending along a vertical longitudinal axis 11' perpendicular to the plane of the board, is connected to the mobile beam 2 'by means of a vertical intermediate link 9'.
La biellette 9' verticale est articulée, d'une part, à son extrémité supérieure à l'extrémité inférieure de la colonne 3' et, d'autre part, à son extrémité inférieure à un point 17 de la partie supérieure de la poutre 2' mobile.The vertical rod 9 'is articulated, on the one hand, at its upper end to the lower end of the column 3' and, on the other hand, at its lower end to a
Des premiers moyens d'entraînement longitudinal sont prévus pour impartir à la colonne 3' un mouvement de va et vient rectiligne suivant une direction parallèle à l'axe 11' longitudinal, qui reste vertical pendant tout le mouvement.First longitudinal drive means are provided to impart to the
Un carter 7' étanche enferme les premiers moyens d'entraînement et une partie de la colonne 3', cette dernière traversant la paroi du carter 7' en traversant un pot 4' de guidage respectif. Le pot 4' de guidage est monté fixe par rapport au carter. La colonne 3', lors de son mouvement en va et vient vertical, coulisse à l'intérieur du pot 4' de guidage. Des bagues 18 de guidage sont disposées sur la paroi intérieure du pot 4' de guidage, pour assurer le glissement et la lubrification entre la colonne 3' et le pot 4' de guidage. L'étanchéité entre la colonne 3' et le pot 4' de guidage est assuré par un joint d'étanchéité à lèvre non représenté fixé à la base du pot de guidage.A sealed casing 7 'encloses the first drive means and part of the column 3', the latter passing through the wall of the casing 7 'by passing through a respective guide pot 4'. The guide pot 4 'is mounted fixed relative to the housing. The column 3 ', during its vertical reciprocating movement, slides inside the guide pot 4'. Guide rings 18 are arranged on the inner wall of the guide pot 4 ', to ensure sliding and lubrication between the column 3' and the guide pot 4 '. The seal between the column 3 'and the guide pot 4' is provided by a lip seal, not shown, fixed to the base of the guide pot.
Les premiers moyens d'entraînement longitudinal sont constitués de deux systèmes 6' à arbres à excentrique, dont les arbres entraînent les têtes de deux bielles en tournant à même vitesse dans des sens opposés. Les pieds des deux bielles sont montés articulés à l'une respective des branches latérales d'une biellette 19 en T, tandis que la branche principale ou tige de la biellette en T est montée articulée à la colonne 3'. Ces premiers moyens d'entraînement longitudinal vertical permettent d'impartir à la colonne 3' un mouvement uniquement en va-et-vient suivant l'axe longitudinal vertical.The first longitudinal drive means consist of two systems 6 'with eccentric shafts, the shafts of which drive the heads of two connecting rods turning at the same speed in opposite directions. The feet of the two connecting rods are mounted articulated to a respective one of the lateral branches of a T-
Il est prévu en outre des deuxièmes moyens d'entraînement transversal sous la forme d'une biellette 8' principale disposée suivant la direction MD. Une extrémité de la biellette 8' est montée articulée au point 17' d'articulation de la partie supérieure de la poutre 2' mobile à la biellette verticale. Il est ainsi imparti à cette poutre mobile 2' un mouvement en va et vient suivant la direction MD, ou sensiblement suivant la direction MD (comme représenté par la double flèche au-dessus de la biellette 8' à la
Aux
A la
La position relative de la tige 26, et donc également de la biellette 27, par rapport à l'axe 24 de pivotement du levier le long de la direction verticale et/ou par rapport à l'axe d'articulation de la bielle 22 au levier peut être réglée par l'intermédiaire d'un système de réglage constitué d'un arbre à excentrique 29 auxiliaire de réglage et d'une biellette 28 de réglage. La biellette 28 de réglage est couplée de manière articulée à son extrémité supérieure à l'arbre à excentrique (ou vilebrequin) 29, tandis que son extrémité inférieure est montée pivotante par rapport à l'axe de la tige 26.The relative position of the
Le levier comporte une ouverture en forme de fente 30, dans lequel coulisse le coulisseau 25 solidaire en translation de la tige 26.The lever has an opening in the form of a
En fonction de la position de la biellette 28 qui est déterminée par une rotation appropriée du vilebrequin 29, on peut choisir et régler la position relative du coulisseau 25 dans la fente 30 de manière à régler la distance le long de l'axe vertical du levier entre l'axe 24 et l'axe de la tige 26 (et donc également la distance entre l'axe de la tige 26 et l'axe de la bielle 22), cette distance pouvant être variée entre une valeur nulle (position dans laquelle le coulisseau 25 se trouve en haut de la fente 30 de manière à avoir l'axe de la tige 26 en correspondance avec l'axe 24 et une position de réglage maximum, dans laquelle le coulisseau 25 se trouve tout en bas de la fente 30).Depending on the position of the connecting
On peut faire varier l'amplitude du mouvement en va-et-vient de la biellette 27 aussi bien à la marche qu'à l'arrêt, le mouvement répercuté à partir du mouvement du vilebrequin 21 et de la biellette 22 agissant sur le levier 23. Quant à la biellette 27, elle peut être solidarisée ou articulée à la biellette principale du mode de réalisation des
A la
A la
Aux
Dans ce mode de réalisation, on utilise une came en spirale, constituée d'un disque 40 dans lequel est ménagée une fente en forme de spirale le long de laquelle la tige 26 peut se déplacer. Lors de la rotation du disque 40, la tige 26 suit le profil de la fente 30, ce qui a pour effet de déplacer la tige 26 et donc le coulisseau 25 le long de la fente. En fonction de la position choisie le long de la spirale pour la tige 26, on obtient une course donnée maximale de va et vient pour la biellette 27.In this embodiment, a spiral cam is used, consisting of a
A la
Dans les modes de réalisation décrits aux
Dans la présente description, on a décrit les premiers moyens d'entraînement réalisés à l'aide de deux systèmes à arbres à excentrique pour réaliser un mouvement purement longitudinal de la colonne. D'autres moyens peuvent être envisagés, par exemple un système à vérins ou un arbre à came à excentrique.In the present description, we have described the first drive means produced using two systems with eccentric shafts to achieve purely longitudinal movement of the column. Other means can be envisaged, for example a system with jacks or an eccentric camshaft.
Claims (8)
les moyens d'entrainement comportent des moyens d'entraînement longitudinal configurés pour impartir à la ou chaque colonne un mouvement de va-et-vient rectiligne suivant une direction parallèle à l'axe longitudinal, notamment verticale ;
la ou chaque-planche à aiguille étant montée basculante par rapport à la colonne ou une colonne respective; et
les moyens d'entraînement comportent des moyens d'entrainement transversal configurés pour impartir à un point de la ou de chaque planche à aiguille ou d'un élément solidaire de la ou de chaque planche à aiguilles un mouvement de va-et-vient suivant une direction principalement parallèle à la direction MD.Needling device for consolidating by needling a web or a sheet of fibers, in particular of nonwoven, comprising:
the drive means comprise longitudinal drive means configured to impart to the or each column a rectilinear reciprocating movement in a direction parallel to the longitudinal axis, in particular vertical;
the or each needle board being mounted to tilt relative to the column or a respective column; and
the drive means comprise transverse drive means configured to impart to a point of the or each needle board or an element integral with the or each needle board a back and forth movement following a direction mainly parallel to MD direction.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2004058A FR3109588B1 (en) | 2020-04-23 | 2020-04-23 | Elliptical needling machine with sealed casing and crossing guide pot |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3901348A1 true EP3901348A1 (en) | 2021-10-27 |
EP3901348C0 EP3901348C0 (en) | 2023-07-12 |
EP3901348B1 EP3901348B1 (en) | 2023-07-12 |
Family
ID=71452489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP21169004.5A Active EP3901348B1 (en) | 2020-04-23 | 2021-04-16 | Elliptic needle loom with sealed housing and box for guiding the crossmember |
Country Status (6)
Country | Link |
---|---|
US (1) | US11499256B2 (en) |
EP (1) | EP3901348B1 (en) |
KR (1) | KR20210131254A (en) |
CN (1) | CN113550078A (en) |
FR (1) | FR3109588B1 (en) |
TW (1) | TW202146731A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE202020106554U1 (en) * | 2020-11-16 | 2022-02-17 | Autefa Solutions Austria Gmbh | needle machine |
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WO1996021764A1 (en) * | 1995-01-12 | 1996-07-18 | Asselin | Alternating actuation device, and needling machine provided therewith |
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GB2335931A (en) * | 1998-03-31 | 1999-10-06 | Fehrer Textilmasch | Needling apparatus with two eccentric drives |
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FR2862988A1 (en) * | 2003-11-28 | 2005-06-03 | Fehrer Textilmasch | Needling apparatus for non-woven material, includes needleboard(s) drivable by eccentric drive(s) having eccentric shafts provided with different angular position and having connecting rods |
EP1736586A1 (en) | 2005-06-22 | 2006-12-27 | Asselin-Thibeau | Process and installation for needling a fibre web using two needle boards |
EP1736587A1 (en) * | 2005-06-22 | 2006-12-27 | Asselin-Thibeau | Needling machine for consolidating a web |
EP3372716B1 (en) | 2017-03-09 | 2019-09-04 | Oskar Dilo Maschinenfabrik KG | Needling machine |
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US3849845A (en) * | 1973-09-20 | 1974-11-26 | Fehrer Textilmasch | Apparatus for needle-punching a web |
AT400152B (en) * | 1994-04-28 | 1995-10-25 | Fehrer Textilmasch | DEVICE FOR NEEDING A FLEECE |
FR2727990A1 (en) * | 1994-12-08 | 1996-06-14 | Asselin | SLIDING ROD NEEDLE |
AT406390B (en) * | 1998-03-31 | 2000-04-25 | Fehrer Textilmasch | DEVICE FOR NEEDING A FLEECE |
ATA160899A (en) * | 1999-09-21 | 2000-09-15 | Fehrer Monika Mag | DEVICE FOR NEEDING A PATTERNED FELT |
AT408234B (en) * | 1999-10-08 | 2001-09-25 | Fehrer Textilmasch | DEVICE FOR NEEDING A FLEECE |
AT413387B (en) * | 2004-03-31 | 2006-02-15 | Fehrer Textilmasch | DEVICE FOR NEEDING A FLEECE |
US8793848B2 (en) * | 2009-09-09 | 2014-08-05 | Hi Tech Textile Holding Gmbh | Device for needling a fibrous web |
-
2020
- 2020-04-23 FR FR2004058A patent/FR3109588B1/en active Active
-
2021
- 2021-04-16 EP EP21169004.5A patent/EP3901348B1/en active Active
- 2021-04-22 US US17/237,442 patent/US11499256B2/en active Active
- 2021-04-23 TW TW110114664A patent/TW202146731A/en unknown
- 2021-04-23 KR KR1020210052762A patent/KR20210131254A/en unknown
- 2021-04-23 CN CN202110443612.8A patent/CN113550078A/en active Pending
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Publication number | Priority date | Publication date | Assignee | Title |
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WO1996021764A1 (en) * | 1995-01-12 | 1996-07-18 | Asselin | Alternating actuation device, and needling machine provided therewith |
FR2738846A1 (en) | 1995-09-15 | 1997-03-21 | Dilo Kg Maschf Oskar | DEVICE FOR DRIVING NEEDLE RODS OF A NEEDLE ROLLER FOR PROCESSING NON-WOVEN FELT NAPKIN |
US6161269A (en) | 1997-07-16 | 2000-12-19 | Oskar Dilo Maschinenfabrik Kg | Apparatus for needling non-woven fiber fleece webs |
GB2335931A (en) * | 1998-03-31 | 1999-10-06 | Fehrer Textilmasch | Needling apparatus with two eccentric drives |
FR2800396A1 (en) * | 1999-10-29 | 2001-05-04 | Fehrer Textilmasch | DEVICE FOR NEEDING A FIBER MATTRESS |
FR2862988A1 (en) * | 2003-11-28 | 2005-06-03 | Fehrer Textilmasch | Needling apparatus for non-woven material, includes needleboard(s) drivable by eccentric drive(s) having eccentric shafts provided with different angular position and having connecting rods |
EP1736586A1 (en) | 2005-06-22 | 2006-12-27 | Asselin-Thibeau | Process and installation for needling a fibre web using two needle boards |
EP1736587A1 (en) * | 2005-06-22 | 2006-12-27 | Asselin-Thibeau | Needling machine for consolidating a web |
EP3372716B1 (en) | 2017-03-09 | 2019-09-04 | Oskar Dilo Maschinenfabrik KG | Needling machine |
Also Published As
Publication number | Publication date |
---|---|
FR3109588B1 (en) | 2022-10-14 |
FR3109588A1 (en) | 2021-10-29 |
KR20210131254A (en) | 2021-11-02 |
CN113550078A (en) | 2021-10-26 |
EP3901348C0 (en) | 2023-07-12 |
EP3901348B1 (en) | 2023-07-12 |
US20210332513A1 (en) | 2021-10-28 |
TW202146731A (en) | 2021-12-16 |
US11499256B2 (en) | 2022-11-15 |
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