EP1664403B1 - Ensemble banc d'etirage-banc a broches permettant de produire une meche par un procede de filage pneumatique - Google Patents

Ensemble banc d'etirage-banc a broches permettant de produire une meche par un procede de filage pneumatique Download PDF

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Publication number
EP1664403B1
EP1664403B1 EP04738065.4A EP04738065A EP1664403B1 EP 1664403 B1 EP1664403 B1 EP 1664403B1 EP 04738065 A EP04738065 A EP 04738065A EP 1664403 B1 EP1664403 B1 EP 1664403B1
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EP
European Patent Office
Prior art keywords
twist
roving
frame
roving yarn
conveyor belt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP04738065.4A
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German (de)
English (en)
Other versions
EP1664403A1 (fr
Inventor
Herbert Stalder
Christian Griesshammer
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP1664403A1 publication Critical patent/EP1664403A1/fr
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Publication of EP1664403B1 publication Critical patent/EP1664403B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32—Regulating or varying draft
    • D01H5/38—Regulating or varying draft in response to irregularities in material ; Measuring irregularities
    • D01H5/42—Regulating or varying draft in response to irregularities in material ; Measuring irregularities employing electrical time-delay devices
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/92—Spinning or twisting arrangements for imparting transient twist, i.e. false twist
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D01H1/115—Spinning by false-twisting using pneumatic means

Definitions

  • the present invention relates to a route roving machine combination for doubling and stretching a plurality of slivers to a conveyor belt and for subsequent production of a roving from the conveyor belt.
  • Such a combined device is unknown in textile technology.
  • the two individual subassemblies comprising the device according to the invention are familiar to the experts in part - ie not in this form and not in accordance with the swirl-dividing method according to the invention.
  • the route as a textile machine for doubling and stretching a plurality of slivers to a conveyor belt is known as such See, for example EP 1 329 541 A2
  • Roving machines for the production of so-called rovings from one or more conveyor belts are known as such, but not with the inventive twist distribution member See, for example EP 0 174 112 A1
  • the roving machines according to the present invention include, for example, the so-called flyer.
  • the roving serves as a template for the actual spinning process, ie for the spinning of the fibers into a fiber yarn, for example on a ring spinning machine.
  • the Vortechnik (Karderie) coming slivers are first doubled according to the prior art with the help of routes and stretched at the same time and then placed in pots.
  • the resulting conveyor belt is then presented to the roving (flyer) for further processing.
  • the conveyor belt is warped in these roving usually first in its own drafting further and then slightly twisted by a corresponding twisting before the original sliver is wound up as a roving on a supply spool.
  • the resulting roving usually serves as a template for ring spinning machines.
  • the roving as mentioned usually has its own drafting, usually a double apron drafting. After being warped by the drafting system of the roving machine, the roving receives a slight twist (so-called protective rotation) so that the resulting roving has a certain strength, does not disintegrate, and can be wound up on a spool.
  • the given rotation may only be so high that the cohesion of the roving yarn for winding and rewinding and the transport of the coils is strong enough, so in particular no Fehlverman (thin spots in the roving).
  • the rotation must be easily dissolvable or the roving must remain delayable, so that the subsequent spinning process, eg. B. in a ring spinning machine, can be accomplished.
  • flyer As roving the so-called flyer is usually used, which produces the corresponding flyer fly.
  • This roving machine is equipped with a drafting system and a spindle for winding the Flyerlunte on a cylindrical coil by means of a wing to support the fuse against the centrifugal force caused by the spindle speeds.
  • the flyer is an expensive machine in the entire spinning process, especially because of the complicated winding mechanism.
  • the usual performance of a flyer at 20 - 25 meters roving per minute is. However, this low production can not be increased in view of the flyer system with flyer wings, since a higher speed is limited by the centrifugal force that the wings and the roving bobbin have to endure.
  • the device according to the cited document is relatively expensive to produce and to operate because of the mechanical elements (rotating rotor) and the vacuum technology.
  • a false-twist nozzle is used to make a staple fiber yarn (also a false-twisting method).
  • Object of the present invention is to provide a roving and a method for producing a roving, in which a process shortening takes place and the above-mentioned disadvantages of conventional roving can be avoided.
  • a roving to be produced which has the properties of conventional Flyerlunten or rovings, this concerns in particular the defaulting ability of the produced roving.
  • the FIG. 1 shows an inventive route-roving machine combination 35.
  • This machine can be divided into two areas I and II schematically.
  • the first area I includes the section 36 with a drafting unit 37.
  • the drafting unit 37 is preferably regulated.
  • the slivers 38 which are removed from a plurality of cans 39, are doubled before the stretch 36 and stretched in the drafting unit 37.
  • the strip line 3 resulting therefrom is then fed directly to the region II of the inventive route-roving machine combination.
  • a roving 9 is produced from the strip conveyor 3.
  • the conveyor belt 3 passes through a swirl-distributing means 4 and preferably a drafting device 2 arranged in front of the swirl-divider 4.
  • the roving 9 is then wound up by means of a winding-up device 7.
  • the operation of the swirl-issuing means 4 will be described in the following figures.
  • FIG. 1a schematically shows a possible spinning station 1 (ie twist distribution point) of a route roving machine combination (entire machine not shown) according to the invention.
  • the figure shows only one of several possible embodiments for the swirl distribution case 4.
  • the shown embodiment of the spinning position 1 has a (also shown schematically) Drafting system 2, which is supplied with a conveyor belt 3 (eg a doubled conveyor belt).
  • the conveyor belt 3 is twisted into a roving 9, ie the conveyor belt is at least partially given a real twist (ie at least part of the fibers of the conveyor belt).
  • FIG. 1a schematically shows a possible spinning station 1 (ie twist distribution point) of a route roving machine combination (entire machine not shown) according to the invention.
  • the figure shows only one of several possible embodiments for the swirl distribution case 4.
  • the shown embodiment of the spinning position 1 has a (also shown schematically) Drafting system 2, which is supplied with a conveyor belt 3 (eg a doubled conveyor belt).
  • the inventive device does not necessarily have a drafting 2 or a pair of take-off rollers 8, as in FIG. 1 a is shown.
  • twisting means 4 operates according to the so-called vortex process, a special air spinning process.
  • the vortex air spinning process is known per se as a yarn spinning process.
  • devices for yarn formation are in themselves unsuitable for the production of a warpable roving.
  • experiments with suitably modified air-spinning devices have shown that certain air-spinning processes are also suitable for the production of rovings.
  • the dimensions and flow conditions of conventional yarn air spinning devices must be adjusted.
  • the twist distribution means according to the invention only have to give the stretch line a protective rotation so that the sliver or roving formed thereby remains delayable.
  • Conventional conventional air spinning devices rotate the conveyor belt in such a way that a yarn or a thread forms, which is twisted so strongly that the rotation is irreversible and in particular is no longer malleable.
  • air spinning devices By a correspondingly larger dimensions of the air spinning devices, as well as an adjustment of the flow conditions and above all by suitably high delivery speeds, can be produced with air spinning devices also retractable rovings or Lunten. The most suitable ratios can best be determined experimentally.
  • air-spinning devices for rovings preferably have one or more of the following properties:
  • the diameter of the swirl or swirl chamber is at least 5 mm (see swirl chamber 5 in the figures described below) preferably the delivery speed of the conveyor belt (from the outfeed rollers drafting system) is at least 200 m / min
  • the pressure of the air flow, before it flows through the nozzle bores or nozzles in the vortex chamber at most 5 bar (see air flow 32, 16, 16.1, 16.2, or 20, and nozzle holes or nozzles 11 in the figures described below)
  • These air-spinning devices preferably give the roving or the sliver a deep wind-up twist, preferably the twisting rotation or the rotation coefficient ⁇ m is less than 70.
  • the mode of operation of the device according to the invention for forming a roving is similar to the mode of operation of conventional air spinning methods for yarn formation. For this reason, the air-spinning method used for the device according to the invention will not be discussed in great detail here.
  • only one protective rotation is granted to the conveyor belt or the roving in the devices and methods according to the invention. This protective rotation is such that the roving remains delayable for the further processing process.
  • the band is at least partially granted a true spin, d. H. at least a part of the fibers of the conveyor belt, if not all, receive a real twist (rotation) by means of an air flow. This real spin or this rotation is as mentioned only a protective rotation.
  • the roving or sliver produced according to the invention therefore has the same properties as a sliver produced with a conventional flyer.
  • FIG. 1 a One of the possible inventive twisting means for the formation of roving is the already mentioned article 4 FIG. 1 a which, as already mentioned, operates according to the so-called vortex air-jet spinning process.
  • the device 4 has for this purpose a fiber guide element 10, with which the conveyor belt 3 is supplied to the swirl chamber 5 of the swirl-issuing means 4.
  • a fluid device (not shown) generates an air flow 32 or a vortex flow by means of one or more nozzle bores 11.
  • the resulting turbulence within the vortex chamber 5 causes individual free fiber ends 12 on the surface of the conveyor belt 3 around the inlet mouth 13 of the Vorgarn Struktursettis 6 and - detected by the rotating vortex flow in the vortex chamber - rotate about the core 14 of the conveyor belt.
  • the belt 3 in the swirl chamber 5 is at least partially given a real twist by means of an air flow 32.
  • the resulting thereby at the inlet mouth 13 roving 9 is withdrawn for example via a pair of take-off rollers 8 and wound on a winding device 7.
  • the roving forming element 6 has a bore (see FIG. 1 a) ,
  • the winding device 7 in the FIG. 1 a is shown only schematically.
  • the winding device may be a cross winder, a precision cross winder, a wild cross winder, a step precision winder, or a parallel winder.
  • FIG. 2 shows the twist distribution means 4 from the FIG. 1a in a different view. Particularly well recognizable in this figure is how the conveyor belt 3 is guided by the fiber guide element 10 in the swirl chamber 5, where a vortex air flow generated by the nozzle holes 11 detects the free fiber ends 12 of the conveyor belt 3 and surrounds the inlet mouth 13 of the roving forming element 6.
  • the around the inlet mouth 13 legend free fiber ends 12 form a rotating around the core 14 of the conveyor belt "sun”.
  • the free fiber ends 12 thus twist around the core 14 of the conveyor belt, whereby the conveyor belt 3 in the swirl chamber 5 at least partially receives a real twist (rotation) due to the air flow.
  • the roving 9 thus produced at the inlet mouth 13 is drawn through the roving forming element 6 (eg a spindle as shown here) (see arrow).
  • the FIG. 3 shows another not according to the invention Drallergnacssch 15. This works on the so-called. Injection-false twisting and has no roving forming element.
  • the twist distribution means 15 (shown schematically) also has only one swirl chamber 5, in which by means of one or more nozzle bores 11 an air flow 16 (swirling flow) is generated. By means of this air flow 16, the strip conveyor is given a real twist at least partially in the swirl chamber 5.
  • the true twist distribution (true rotation in the conveyor belt) is in the FIG. 3a represented: within the vortex chamber 5 is given by the air flow 16 the conveyor belt 3 rotation, ie at least a portion of the fibers of the conveyor belt 3 are rotated, so that the fuse 9 is formed.
  • the FIG. 3b shows a variant of the not according to the invention Drallerediaffensmittels according to the FIG. 3a ,
  • the swirl-distributing means 17 has two swirl chambers 5 each having no roving forming member.
  • the true twist distribution is also done here by means of or in this case two air flows 16.1 and 16.2.
  • At least a part of the fibers of the conveyor belt 3 receives a real twist (rotation).
  • the roving 9 and the fuse is withdrawn and wound by a device, not shown.
  • the swirl-dividing means 17 has a plurality of nozzle bores 11.
  • the nozzle bores 11 serve to generate the air flows 16.1 and 16.2.
  • the nozzle holes are aligned so that the exiting air jets together and together generate the air flow 16.1 and 16.2, respectively.
  • the entry angles of the nozzle bores 11 within the respective vortex chamber 5 are preferably the same.
  • the air flows 16.1 and 16.2 are also rectified, ie that the two air flows 16.1 and 16.2 - despite separate vortex chambers - have the same direction of rotation (right or left rotating air flow).
  • the Figure 3c shows a variant of the spin-spreading agent not according to the invention FIG. 3b ,
  • the swirl distribution means 40 differs from the previous one in that the air flows 41 and 42 in the swirl chambers 5.1 and 5.2 are not rectified, but are directed counter to each other (ie one air flow 41 is right-handed and the other 42 left-handed). As a result, the conveyor belt 3 is given a twist by the so-called false-twist method.
  • the individual nozzles or nozzle bores are arranged rotationally symmetrical to one another in all embodiments of the invention.
  • the twist distribution means according to the invention preferably also have one or more twist-blocking elements.
  • Spin dam elements can have different shapes.
  • a twist dam element can be designed, for example, as an edge, as a pin, as a twisted surface, as a cone or in the form of a plurality of steering means.
  • FIG. 4 shows a twisting distribution means 18 with a twist dam element in the form of a pin 19.
  • the remaining elements of FIG. 4 correspond largely to the embodiments already described and accordingly have the same reference numerals.
  • the pin 19 in the FIG. 4 serves as a twist dam element as well as a wrong twine core.
  • Swirl-jam elements serve to prevent a rotation in the conveyor belt from propagating further backwards. In particular, this prevents any false rotation from occurring and thus at most no real twist is given to the conveyor belt.
  • the use of twist dam elements for the devices according to the invention is not necessarily necessary, but recommended. In particular, the real twist distribution is thereby improved by means of the air flow. As in the FIGS.
  • FIG. 4b shows a twisted fiber guide surface 21, which additionally has a pin 19. This makes the twist-jam function particularly effective.
  • a twisted fiber guide surface 21 with pin is also in the Figure 4c shown.
  • the elements of Figure 4c correspond largely to the elements of the FIG. 4b with the difference that the pin 19 of the Figure 4c is dull.
  • FIG. 5 shows a fiber guide element 10 with a so-called twist stop cone 24.
  • the twist stop cone 24 performs the function of the twist dam element.
  • the effect is the same as the pin: cone or pin are also used as so-called false yarn cores.
  • the fibers or the drawstring spirals around the wrong yarn core, preventing propagation of rotation against the withdrawal direction of the roving.
  • twist dam element only a twisted fiber guide element 22 without pin can serve. This is for example in FIG. 6 shown (compare with Figure 4c ). A twisted fiber guide surface is sufficient in itself as a twist dam element. The additional use of a pin is not absolutely necessary. Various views of a tortuous fiber guide element without pin 22 is in the Figures 6a and 6b given. As a twist dam element, only one edge 33 can serve, which is not necessarily must be preceded by a twisted fiber guide surface, so that even a flat fiber guide surface can suffice.
  • FIG. 7 shows further twist dam elements, which could find use in the inventive device.
  • the figure shows a fiber guide element 23 with a plurality of steering means. These steering means 26, in addition to their function to guide the conveyor belt 3, also the effect of a twist stop.
  • the steering means 26 with the twist-jam function act the stretch-band 3 is pulled in the untwisted state in the direction of the roving-forming element 6.
  • the free fiber ends 12 are rotated by the air flow 20 of the vortex chamber by means of true twist distribution.
  • the rotation of the free fiber ends 12 creates a torsional moment which tries to propagate counter to the withdrawal direction (arrow) of the roving in the conveyor belt 3.
  • FIGS. 8a and 8b show steering means with twist accumulation function of different shape.
  • FIG. 8c shows a view of the steering means 27 and 28 in the withdrawal direction of the roving or the conveyor belt.
  • the steering means 26, 27 and 28 shown represent only some of the possible shapes.
  • the roving machine according to the invention may preferably also have means which determine the width of the conveyor belt before entering the swirling means.
  • These means may be, for example, funnels or other forms of condensers.
  • Such a means 29 is in the FIG. 9 The figure shows a funnel 29, which limits a strip length 3 in its width and feeds a twist distribution means 31.
  • Such a funnel 29 or other condenser may for example be arranged downstream of an outlet roller pair 30.
  • the outlet roller pair 30 is shown in a plan view.
  • the reference numeral 34 indicates the nip line of the outlet roller pair 30.
  • the inventive route-roving machine combination for producing a roving from a conveyor belt a special twist distribution means.
  • the special twist distribution means of the device according to the invention twists a sliver into a roving.
  • the twist distribution means according to the invention has a vortex chamber with a roving formation element contained therein.
  • the roving forming element is a spindle.
  • in the vortex chamber of the swirl-distributing means at least partially (ie at least part of the fibers) is given a real twist (rotation) by means of an air flow.
  • the roving machines according to the invention and the swirl-distributing means according to the invention may each be additionally preceded by a drafting device in addition to the section.
  • the swirl-distributing agents according to the invention each have one or more swirl-accumulation elements.
  • These twist dam elements can be designed, for example, as an edge, as a pin, as a twisted surface, as a cone or as a plurality of steering means.
  • the twist distribution means according to the invention may also comprise a combination of the just-mentioned twist-jam elements, e.g. a twisted area with a pin, or a cone with a pin, or an edge with a pin, or a twisted area with a pin.
  • the twist distribution means according to the invention may comprise a plurality of these twist dam elements or a combination thereof.
  • the swirl-distributing means comprise a plurality of nozzles for generating the air flow, the nozzles being oriented so that their exiting air jets are rectified so as to produce together a rectified air flow within the same swirling chamber.
  • the air flows can have opposite directions of rotation.
  • the nozzle bores within a vortex chamber are rotationally symmetrical about the axis of the vortex chamber (the inlet angles of the nozzle bores are therefore the same).
  • the nozzles can preferably be arranged such that the nozzles of a respective vortex chamber are arranged rotationally symmetrically, but each vortex chamber has a different entry angle for the respective nozzles.
  • the air jets emerging in the respective vortex chambers can therefore not only have different directions of rotation - in the sense of a left or a right turn - but also have different "lead angles".
  • a rotationally symmetrical arrangement of the nozzles is for example in the FIG. 2 shown.
  • a rotationally symmetrical offset arrangement of the nozzles is in the FIG. 3b to see (the nozzle holes 11 of the two vortex chambers are analogous to FIG. 2 also arranged rotationally symmetrical).
  • the roving and twisting means according to the invention comprise a means, in particular a funnel or an aerodynamic or mechanical condenser, which has the function of determining the width of the conveyor belt prior to entry into the twisting means.
  • the distance between the inlet mouth of the roving-forming element (eg spindle) and the last nip line (eg of the outlet roller pair) is not greater than the longest fiber length contained in the conveyor belt or greater than the average staple fiber length of the conveyor belt.
  • the distance between the entrance of the swirl-distributing means and the last nip line is not greater than the longest fiber length contained in the conveyor belt.
  • the roving machine according to the invention is associated with a winding device.
  • the winding device is a cross winder, a precision cross winder, a wild cross winder, a step precision winder, or a parallel winder.
  • the yarn formation element is a spindle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (8)

  1. Combinaison de banc d'étirage et à broches (35) pour le doublage et l'étirage de plusieurs rubans de fibres (38) en un ruban d'étirage (3) et pour la fabrication consécutive d'une mèche (9) à partir du ruban d'étirage (3),
    contenant un ou plusieurs dispositifs d'étirage (36), de préférence régulés, ainsi qu'un ou plusieurs postes de filage (1) correspondantes agencés à la suite, avec un moyen de torsion (4) respectif et de préférence un train d'étirage (2) agencé en amont du moyen de torsion (4), caractérisée en ce que le moyen de torsion (4) comporte une chambre à tourbillon (5) avec un élément de formation de mèche (6) contenu dans celle-ci, une torsion réelle ou au moins partiellement une torsion réelle étant donnée au ruban d'étirage (3) dans la chambre à tourbillon (5), au moyen d'un flux d'air (32).
  2. Combinaison de banc d'étirage et à broches pour la fabrication d'une mèche (9) selon la revendication 1, caractérisée en ce que le moyen de torsion (4, 18) comporte au moins un élément de blocage de torsion (19, 21, 22, 26, 27, 28, 33), l'élément de blocage de torsion étant de préférence conçu comme une arête (33), une broche (19), une surface torsadée (21, 22), un cône (24) ou comme plusieurs moyens de guidage (26, 27, 28), ou comme une combinaison de ces éléments.
  3. Combinaison de banc d'étirage et à broches pour la fabrication d'une mèche (9) selon la revendication 1 ou 2, caractérisée en ce que le moyen de torsion (4, 17, 18) contient plusieurs buses (11) pour la production d'un flux d'air (16,16,1,16,2, 20), les buses (11) étant orientées de manière à ce que les jets d'air (32) sortants soient alignés dans le même sens, pour produire ensemble un flux d'air aligné (16.1, 16.2, 20) et une mise en torsion, les buses (11) étant de préférence agencées de façon symétrique en rotation ou décalées de façon symétrique en rotation.
  4. Combinaison de banc d'étirage et à broches pour la fabrication d'une mèche (9) selon l'une des revendications 1 à 3, caractérisée en ce qu'il est prévu des moyens (29), en particulier des entonnoirs (29) ou des condenseurs mécaniques ou aérodynamiques, lesquels déterminent la largeur du ruban d'étirage (3) avant l'introduction dans le moyen de torsion (4, 15, 17, 18, 31).
  5. Combinaison de banc d'étirage et à broches pour la fabrication d'une mèche selon l'une des revendications 1 à 4, caractérisée en ce que l'écart entre l'embouchure d'entrée de l'élément de formation de mèche (13) et la dernière ligne de serrage (34) n'est pas supérieur à la plus grande longueur contenue dans le ruban d'étirage (3).
  6. Combinaison de banc d'étirage et à broches selon l'une des revendications précédentes, caractérisée en ce qu'un enrouleur (7) est attribué au ou aux poste(s) de filage (1) du banc à broches, lequel enroule la mèche (9) sortant du moyen de torsion (4, 15, 17, 18, 31), l'enrouleur (7) étant de préférence un enrouleur en croix, un enrouleur en croix de précision, un enrouleur en croix sauvage, un enrouleur de précision à paliers, ou un enrouleur parallèle.
  7. Combinaison de banc d'étirage et à broches selon l'une des revendications précédentes, caractérisée en ce que l'élément de formation de fil (6) est une broche.
  8. Combinaison de banc d'étirage et à broches selon l'une des revendications précédentes, caractérisée en ce que la torsion donnée à la mèche (9) est une torsion de protection permettant à la mèche (9) de rester étirable.
EP04738065.4A 2003-09-12 2004-07-06 Ensemble banc d'etirage-banc a broches permettant de produire une meche par un procede de filage pneumatique Not-in-force EP1664403B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH15792003 2003-09-12
CH972004 2004-01-23
PCT/CH2004/000424 WO2005026420A1 (fr) 2003-09-12 2004-07-06 Ensemble banc d'etirage-banc a broches permettant de produire une meche par un procede de filage pneumatique

Publications (2)

Publication Number Publication Date
EP1664403A1 EP1664403A1 (fr) 2006-06-07
EP1664403B1 true EP1664403B1 (fr) 2014-09-03

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US (1) US7647760B2 (fr)
EP (1) EP1664403B1 (fr)
JP (1) JP2007505226A (fr)
WO (1) WO2005026420A1 (fr)

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DE102005009731A1 (de) * 2005-03-03 2006-09-07 Rieter Ingolstadt Spinnereimaschinenbau Ag Flyerloses Spinnverfahren sowie Vorrichtung mit einem Streckwerk
JP2007262645A (ja) * 2006-02-28 2007-10-11 Murata Mach Ltd 紡績装置および紡績方法
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CH704780A1 (de) * 2011-04-13 2012-10-15 Rieter Ag Maschf Vorspinnmaschine zur Herstellung eines Vorgarns.
CH705221A1 (de) * 2011-07-01 2013-01-15 Rieter Ag Maschf Vorspinnmaschine zur Herstellung eines Vorgarns sowie Verfahren zum Anspinnen eines Faserverbands.
DE102011053396B3 (de) 2011-09-08 2012-08-23 Terrot Gmbh Vorrichtung und Verfahren zur Herstellung von Maschenware
DE102012108613A1 (de) * 2012-09-14 2014-03-20 Maschinenfabrik Rieter Ag Spinnstelle einer Vorspinnmaschine
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EP1664403A1 (fr) 2006-06-07
US7647760B2 (en) 2010-01-19

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