EP2554728B1 - Verfahren zum Schneiden von Polkettgarn und zur Implementierung solch eines Verfahrens angepasster Doppelteppichwebstuhl - Google Patents

Verfahren zum Schneiden von Polkettgarn und zur Implementierung solch eines Verfahrens angepasster Doppelteppichwebstuhl Download PDF

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EP2554728B1
EP2554728B1 EP11306002.4A EP11306002A EP2554728B1 EP 2554728 B1 EP2554728 B1 EP 2554728B1 EP 11306002 A EP11306002 A EP 11306002A EP 2554728 B1 EP2554728 B1 EP 2554728B1
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pick
knife
cutting
sharpening
loom
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French (fr)
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EP2554728A1 (de
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Martin Burkert
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Staeubli Bayreuth GmbH
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STAUBLI BAYREUTH GmbH
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Priority to EP11306002.4A priority Critical patent/EP2554728B1/de
Priority to CN201210270542.1A priority patent/CN102912527B/zh
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D39/00—Pile-fabric looms
    • D03D39/16—Double-plush looms, i.e. for weaving two pile fabrics face-to-face
    • D03D39/18—Separating the two plush layers, e.g. by cutting

Definitions

  • This invention belongs to the field of double carpet weaving and relates to a weaving method and, more particularly, to a method for cutting pile warp yarns extending from one ground fabric to the other in a double carpet weaving loom.
  • the invention also relates to a double carpet weaving loom adapted to implement such a method.
  • EP-A-1 122 348 discloses a cutting device including a knife mounted on a carriage which is guided by a bench and attached to a belt. Driving means for the carriage include a servomotor whose output shaft is connected to a pulley driving the belt.
  • the quality of the carpet highly depends on the cutting process. An important point is that the knife must be regularly and correctly sharpened. It is known from EP-A-1 122 348 to install a sharpening device on at least one side of the ground fabric and to drive the knife carriage towards this sharpening device so that the knife rubs on a grinding surface and gets sharpened.
  • EP-A-1 394 301 teaches how to improve the quality of a carpet by keeping the knife carriage speed constant during a cutting operation.
  • the sharpening frequency of the knife can be set as a function of the pile density.
  • EP-A-1 217 115 discloses a weaving loom where a cutting device is regularly moved forward during fabrication of a pile row and backward during fabrication of a subsequent pile row. All displacements of the cutting device occur at the same speed.
  • the invention aims at solving these problems with a new cutting method where the cutting operation is more precise than with the prior art methods.
  • the invention concerns a method for cutting pile warp yarns in a double carpet weaving loom where pile warp yarns selectively extend between an upper ground fabric and a lower ground fabric, these warp yarns being cut by a cutting device including a knife carriage which, in order to perform cutting operations, has translation movements from a first side of a ground fabric to a second side of this ground fabric, each translation movement taking place within a pick period.
  • a cutting device including a knife carriage which, in order to perform cutting operations, has translation movements from a first side of a ground fabric to a second side of this ground fabric, each translation movement taking place within a pick period.
  • each translation movement of the knife carriage is defined and controlled on a pick by pick basis, individually for said pick.
  • the weaver it is possible for the weaver to manually or automatically decide pick by pick, if the knife carriage must travel from one side of a ground fabric to the other side. This allows an optimization of the quality of the cutting operation and of the lifetime of the knife.
  • the invention permits a considerable reduction of waste of pile material, saves production cost and reduces the consumption of raw material and energy.
  • this method incorporates at least one of the following features:
  • the invention also relates to a double carpet weaving loom adapted to the above-mentioned method.
  • a loom comprises double-shed formation means, weft yarns insertion means and a pile warp yarns cutting device including a knife carriage which, in order to perform cutting operations, has translation movements from a first side of a ground fabric woven on the loom to a second side of this ground fabric, each translation movement taking place within a pick period.
  • the loom includes programmable means which drive the cutting device according to a pick by pick sequence defined individually for each pick.
  • the loom also includes computation means to automatically edit a weave pattern for a carpet woven on the loom and the pick by pick sequence to be used by the programmable means to drive the cutting device, whereas the computation means include means to perform modifications of at least the pick by pick sequence.
  • the loom 2 partially represented on figure 1 is adapted to weave two carpets C1, C2 having each a ground fabric G1, G2 and piles H1, H2, as shown on figure 3 .
  • the upper part of figure 1 can be considered as a top view which shows the upper ground fabric G1.
  • the lower ground fabric G2 is located under ground fabric G1, thus non visible on figure 1 .
  • Loom 2 includes an electronic controller 4 adapted to control non represented double shed forming means and weft yarns insertion means, in a known manner.
  • Loom 2 also includes a cutting device 6 which includes a knife 62 mounted on a knife carriage 64 slidable along a dovetail guiding rail 65 whose longitudinal axis X65 is perpendicular to the direction of movement of ground fabric G1 within loom 2, as represented by arrow A1 on figure 1 .
  • a drive belt 66 is fastened to knife carriage 64 and bent around a driving pulley 67 driven by a servomotor 68 and around a loose pulley 69.
  • Servomotor 68 is controlled by loom controller 4 via an electronic control signal S 68 and provides controller 4 with a feedback signal S' 68 .
  • Servomotor 68 is adapted to move knife 62 and knife carriage 64 along directions parallel to axis X65, between positions which are respectively located on either sides of ground fabric G1.
  • G1L and G1R respectively denote the left and right lateral edges of ground fabric G1 as seen from the top.
  • Drive means 66 to 69 allow to translate knife carriage 64 between a first side of ground fabric G1, on the left of left edge G1L on figure 1 , and a second side of ground fabric G1, on the right of right edge G1R on figure 1 , and vice versa.
  • the rotation speed of servomotor 68 is set so that a translation movement of knife carriage 64 between the two sides of ground fabric G1 takes place within a pick period, that is within a time interval between two weft yarn insertions on loom 2 and outside the time interval where the reed is moving for beating the weft yarns.
  • Loom 2 also includes a cutting edge resetting device 8 whose function is to reset the cutting edge of knife 62 to its original position with respect to knife carriage 64.
  • Cutting edge resetting device 8 might be of the type described in EP-A-1 122 348 or EP-A-1 394 301 , or any known type.
  • Loom 2 also includes a sharpening device 10 which includes a grinding stone adapted to contact the cutting edge of knife 62 in order to abrade it. When necessary, the cutting edge of knife 62 is driven into contact with this grinding stone and sharpening is performed by rubbing of the knife cutting edge on the grinding stone.
  • a sharpening device 10 which includes a grinding stone adapted to contact the cutting edge of knife 62 in order to abrade it. When necessary, the cutting edge of knife 62 is driven into contact with this grinding stone and sharpening is performed by rubbing of the knife cutting edge on the grinding stone.
  • Devices 8 and 10 are respectively located on the left-hand side and right-hand side of ground fabric G1. A reverse configuration is possible. These devices could also be located on the same side of the ground fabric.
  • Curve C6 on figure 1 represents the movements of knife carriage 64 along rail 65 as a function of the number of picks. Several zones can be identified for the movements of knife carriage 64.
  • curve C6 is rectilinear. This zone corresponds to the movements of knife 62 and knife carriage 64 parallel to axis X65, which induce cutting of some pile warp yarns extending between ground fabrics G1 and G2.
  • Zones Z2 and Z3 are inversion zones where the direction of travel of knife carriage 64 in zone Z1 is inverted.
  • Zone Z4 is a zone where knife carriage 64 is aligned with cutting edge resetting device 8.
  • knife carriage 64 is in register with device 8 and the cutting edge of knife 62 with respect to knife carriage 64 can be set to its original position, or to another predetermined position.
  • zone Z4 can be considered as a cutting edge resetting zone.
  • Zone Z5 is a sharpening zone where knife carriage 64 is aligned with sharpening device 10. In this zone, the cutting edge of knife 62 interferes with a grinding stone of sharpening device 10.
  • Zone Z6 is an inversion zone similar to zone Z3 but behind zone Z5 with respect to zone Z1.
  • Controller 4 also includes a display screen 42 and a keyboard 44. Keyboard 44 is a data entry means for controller 4. Controller 4 is capable of sending electrical control signals S 8 , S 10 , S 42 and S 44 respectively to devices 8, 10, 42 and 44 and to receive feedback signals S' 8 , S' 10 , S' 42 and S' 44 from these devices.
  • Controller 4 has an embedded memory 46 where several selectable weave patterns are stored. Controller 4 performs the weaving control of loom 4. In particular, controller 4 controls the non represented shedding devices of loom 2 on the basis of one of the weave patterns stored in memory 46.
  • the shedding devices can include one or several dobbies for the ground fabrics G1 and G2 and one or several Jacquard mechanisms which control a shed for the yarns forming the piles H1 and H2. For this or these Jacquard mechanism(s), the pile yarn pattern PYP, which is a part of the weave pattern WP stored in memory 46, can be edited on screen 42 as shown on the left of the screen on figure 1 .
  • This part of figure 1 represents the pile yarn pattern PYP of five pile yarns I, II, III, IV and V for nine picks P1 to P9.
  • Y1 denotes an upper weft yarn
  • Y2 denotes a lower weft yarn on these figures.
  • the position of a selection hook in a Jacquard mechanism is represented by a black square if the hook is in its top-most position, by a hatched square if the hook is in a middle position and by a white square if the hook is in its bottom-most position.
  • the position of a hook directly corresponds to the position of the corresponding pile yarn in the shed. For instance, for pick P1 in figures 2 and 3 , pile yarns I to IV are in an intermediate position, that is above weft yarn Y2, whereas pile yarn V is in its bottom-most position.
  • Letter F designates a forward movement of knife 62, that is a displacement of knife 62 in zone Z1 from the left-hand side of ground fabric G1 to the right-hand side of this ground fabric, as shown by the top most branch of curve C6.
  • Letter B designates a backward movement of knife 62, that is a translation movement of knife carriage 62 from the right-hand side of ground fabric G1 to the left-hand side of this ground fabric, as shown by the second horizontal branch of curve C6 on figure 1 .
  • pile-pattern repeat as the number of picks between two successive identical binding configurations, in the same ground fabric, of a patterning pile yarn.
  • this pile pattern repeat equals 3, that is the difference between picks P4 and P7.
  • cutting repeat R as the number of picks between two successive identical binding configurations, in the same ground fabric, of a patterning pile yarn where the cutting movement direction of the knife is the same.
  • this cutting repeat equals 6, that is the difference between picks P1 and P7.
  • loom controller 4 controls servomotor 68 with signal S 68 according to cutting, sharpening and resetting sequences S1, S2 and S3 which are also editable on screen 42, as shown on the right of this screen on figure 1 .
  • These sequences respectively define, on a pick by pick basis, if the knife carriage 64 is to be moved from one side of ground fabric G1 to the other side, if the cutting edge of knife 62 is to be sharpened and if the position of this cutting edge is to be reset.
  • column S1 represents the cutting sequence and each box includes number "1" when a cutting movement is to take place and number "0" when no cutting movement is to take place.
  • columns S2 and S3 which respectively represent the sharpening sequence and the cutting edge setting sequence.
  • cutting sequence S1 is defined on a pick by pick basis, that is individually for each pick P1 to P9, it can be adapted to the actual configuration of the pile yarns for each given pick.
  • sequence S1 has number "0" in its third box, which corresponds to the fact that curve C6 does not include any movement in zone Z1 between picks P2 and P3. The same applies between picks P5 and P6.
  • the pile-pattern repeat is three as mentioned here-above.
  • the cutting repeat R is also 3, that is the difference between picks P1 and P4 or between picks P4 and P7.
  • the invention allows to substantially decrease the cutting repeat ratio R of a weaving and cutting method from 6, with the method of figure 2, to 3 , with the method of figure 3 . It has been experienced that the bigger the cutting repeat is, the more likely "stripes" appear on the pile side of the carpet pile side. Stripes are mainly due to uneven height of the piles and also to the fact that the cut section of the piles is oriented according to the cutting movement direction.
  • the invention permits to reduce the number of picks of the cutting repeat R to a value for which the differences between cutting conditions of each successive pile is no more visible.
  • Sequence S1 can be manually adjusted by the weaver, via keyboard 44, in order to take into account the actual cut result. For instance, if the weaver realizes that it is not necessary to translate knife-carriage 64 even for a pick where some warp yarns go from one ground fabric to the other, e.g. in case where only a few piles are created in a pick, he can decide to cut these piles with the piles created at the next pick. Alternatively, this adjustment function can be performed automatically by loom controller 4.
  • Sequences S2 and S3 are also determined on a pick by pick basis, in consideration of the amount of piles already cut, by calculating for each pick how many pile yarns go from one ground fabric to the other and by planning to sharpen the knife cutting edge and/or to reset its position when a predetermined number of pile yarns have been cut since the last sharpening operation and/or the last resetting operation.
  • Each sequence S1, S2 and S3 can be determined and programmed directly on screen 42 by the weaver reading and analyzing the pile yarn pattern PYP on the left-hand side of screen 42.
  • one or all of these sequences S1, S2 and S3 can be automatically computed by loom controller 4 on the basis of an automatic analysis of the weave pattern WP in memory 46.
  • loom controller 4 determines if some pile yarns go from one ground fabric to the other and, if any, how many of these pile yarns do so.
  • the loom controller creates a cutting sequence S1 for all picks. In this cutting sequence, no movement of the cutting carriage is performed in case no pile yarn goes from one ground fabric to the other.
  • the loom controller 4 can compute and propose to the weaver sharpening sequence S2 and cutting edge resetting sequence S3 which are compatible with the side location of the sharpening and cutting edge resetting devices.
  • the weaver can actually modify this automatically generated cutting sequence S1 in order to take into account its actual result and the quality of the cutting operation. Such a modification can be made via keyboard 44 or any other convenient means.
  • a cutting sequence corresponding to a given pick is delayed with respect to the beating time of this pick.
  • the corresponding delay period can be converted into a number of picks, since the weft density is a known parameter of weaving.
  • Loom controller 4 manages this delay period and this period can be adjusted by the weaver via keyboard 44.
  • a W-pile pattern is used for pile warp yarn IV.
  • knife 62 has been translated in a forward movement to cut it after pick 1, it does not need to be moved after picks P2 and P3 since pile warp yarn IV remains in ground fabric G1 and since no other pile yarn goes from one ground fabric to the other.
  • a backward movement of knife 62 takes place after pick P4 and a new forward movement takes place after pick P7.
  • two pile yarns have a W-pile pattern, namely pile yarns III and IV. One can speak here of a double W-pile pattern.
  • a sharpening sequence S2 and a resetting sequence S3 can be generated, manually by the weaver or automatically by loom controller 4, also on a pick by pick basis.
  • sequences S1, S2 and S3 are logical files which can be stored in memory 46 in case the weave pattern analysis is performed in advance and these sequences are also generated in advance with respect to the actual weaving of carpets C1 and C2.
  • the cutting sequence S1 it is possible to include into the cutting sequence S1 some additional pieces of information that permit to select one particular motion law for knife carriage 64 among a set of predetermined motion laws.
  • These motion laws can include different cutting speeds or, for example, zones of different widths on which the speed of the knife carriage is constant.
  • the technical teachings of EP-A-1 394 301 can be used for this.
  • the motion laws can take into account the fact that the width of the zone where pile yarns are to be cut is smaller than the total width of the ground fabrics. This allows to use a smaller cutting speed on the pile cut zone.
  • the cutting sequence is defined not only with “0” or "1", but with other numbers "2", "3", "4" ... which all specify a different motion law.
  • Loom controller 4 is then capable of applying, for each pick, a selected motion law via servo motor 68.
  • the sharpening sequence is defined not only with “0” or “1”, but with other numbers “2", “3”, “4"...
  • "2" could be assigned to a double sharpening process in which the cutting edge is driven four times in contact with the grinding stone within two forth and back movements.
  • Another possible improvement is to include in the cutting edge resetting sequence some information concerning the required reset position of the knife cutting edge.
  • the reset position can be selected among several predetermined defined positions.
  • the cutting edge resetting sequence is defined by several figures “0", “ 1 ", “ 2 “, “ 3 “, “ 4 " ... and each of figures "1 " and above corresponds to a predetermined reset position.
  • the cutting edge resetting device known from EP-A-1 122 348 can be modified as follows: the stopper is not parallel to the adjustment direction movement of the knife, but inclined with respect to this direction.
  • the programmable dead-point is set on the basis of the amount of movement of the knife with respect to the carriage.
  • the clamp-release lever is a plate, in order to allow a certain range of dead-point positions.
  • This clamp-release lever is driven with a precise actuator whose working period defines re-clamping of the knife and, thus, the position of the knife with respect to the carriage.
  • the adjustment of the cutting edge position is done at a rather slow-motion speed.
  • the stopper is set by an additional drive to a specific position, along the warp direction, in order to define one specific reset position of the knife.
  • the invention is described here-above with respect to the sides of a ground fabric which can be either the upper ground fabric G1 or the lower ground fabric G2 in the loom. Moreover, these sides also correspond to the sides of a weaving zone where sheds are formed for the weaving of the warp and weft yarns in the loom.
  • the invention is not limited by the number and the distribution of the sharpening devices and/or cutting edge resetting devices in the loom.

Claims (15)

  1. Verfahren zum Schneiden von Polkettgarn (I, II, III, IV, V) in einem Doppelteppichwebstuhl (2), bei dem sich Polkettgarn selektiv zwischen einem oberen Grundgewebe (G1) und einem unteren Grundgewebe (G2) erstreckt, das Kettgarn durch eine Schneidvorrichtung (6) enthaltend einen Messerschlitten (64) geschnitten wird, der, um Schneidoperationen durchzuführen, Translationsbewegungen (F, B) von einer ersten Seite (G1L) eines Grundgewebes zu einer zweiten Seite (G1R) des Grundgewebes hat, wobei jede Translationsbewegung innerhalb einer Schussperiode (P1 - P9), die innerhalb eines Zeitintervalls zwischen zwei Schussgarneinführungen liegt, außerhalb des Zeitintervalls, in welchem sich das Riet zum Schlagen des Schussgarns bewegt, stattfindet, dadurch gekennzeichnet, dass jede Translationsbewegung (F, B) des Messerschlittens auf einer Schuss-für-Schuss-Basis individuell für jeden Schuss (P1 - P9) definiert und gesteuert wird.
  2. Verfahren nach Anspruch 1, bei dem, wenn während eines gegebenen Schusses (P2, P5; P2, P3, P5, P6; P2, P5) kein Polkettgarn (I, II, III, IV, V) von einem Grundgewebe (G1, G2) zu dem anderen geht, dann der Messerschlitten (64) nicht translatorisch zwischen den Seiten (G1L, G1R) des Grundgewebes für diesen gegebenen Schuss bewegt wird.
  3. Verfahren nach einem vorhergehenden Anspruch, bei dem ein Messerschärfschritt und/oder ein Messerschneidkanten-Positionsrücksetzschritt auf einer Schuss-für-Schuss(Pl - P9)-Basis implementiert werden.
  4. Verfahren nach Anspruch 3, bei dem der Schärfschritt und/oder der Rücksetzschritt unter Berücksichtigung der Menge von Polkettgarn (I, II, III, IV, V), das seit dem letzten Schärfschritt und/oder seit dem letzten Rücksetzschritt bereits geschnitten wurde, implementiert werden.
  5. Verfahren nach einem der Ansprüche 3 und 4, bei dem, wenn eine Implementierung des Rücksetzschritts stattfinden soll oder wenn eine Implementierung eines Schärfschritts stattfinden soll, die neue Messerschneidkantenposition ausgewählt wird aus einem Satz von vorbestimmten Messerschneidkantenpositionen ("1", "2", "3", "4") oder der Schärfprozess ausgewählt wird aus einem Satz von vorbestimmten Schärfprozessen ("1", "2", "3", "4"), der einen Doppelschärfprozess enthält.
  6. Verfahren nach einem vorhergehenden Anspruch, bei dem es einen Polkettmuster(PYP)-Analyseschritt enthält und das Ergebnis dieses Analyseschritts in Betracht gezogen wird für die Steuerung der Translationsbewegungen (F, B) des Messerschlittens (64), und möglicherweise zum Implementieren des Schärfschritts und/oder des Rücksetzschritts.
  7. Verfahren nach Anspruch 6, bei dem der Polkettmuster(PYP)-Analyseschritt in Echtzeit, Schuss für Schuss (P1 - P9), durchgeführt wird.
  8. Verfahren nach Anspruch 6, bei dem der Analyseschritt vorher auf der Grundlage eines Webmusters (WP) eines auf dem Webstuhl gewebten Teppichs durchgeführt wird.
  9. Verfahren nach einem der Ansprüche 6 bis 8, bei dem der Polkettmuster-Analyseschritt automatisch durchgeführt wird und sein Ergebnis automatisch zu einem Aktuator (68) übertragen (S68) wird, der die Translationsbewegungen (F, B) des Messerschlittens (64) steuert.
  10. Verfahren nach Anspruch 9, bei dem das Ergebnis des Polkettmuster-Analyseschritts automatisch zu einer Schärfvorrichtung (10) und/oder zu einer Schneidkantenpositions-Rücksetzvorrichtung (8) übertragen (S8, S10) wird.
  11. Verfahren nach einem vorhergehenden Anspruch, bei dem die Steuerung jeder Translationsbewegung (F, B) des Messerschlittens (64) die Auswahl einer Bewegungsvorschrift für die Translationsbewegung aus einem Satz von vorbestimmten Bewegungsvorschriften ("1", "2", "3", "4"), vorzugsweise einem Satz von Bewegungsvorschriften ("1", "2", "3", "4"), enthaltend eine Bewegungsvorschrift für eine hin- und hergehende Schneidbewegung enthält.
  12. Verfahren nach einem vorhergehenden Anspruch, bei dem das Verfahren einen Schritt des Erzeugens einer Logikdatei (S1, S2, S3) enthält, die für jeden Schuss (P1 - P2) Daten enthält, die feststellen:
    - ob eine Translationsbewegung stattfinden soll oder nicht (S1),
    - ob ein Messerschärfschritt stattfinden soll oder nicht (S2) und/oder
    - ob ein Messerschneidkantenpositions-Rücksetzschritt stattfinden soll oder nicht (S3).
  13. Verfahren nach einem vorhergehenden Anspruch, bei dem die Steuerung jeder Translationsbewegung (F, B) des Messerschlittens eine Verzögerung zwischen einer Schlagzeit des Garns (I, II, III, IV, V), das bei einem gegebenen Schuss (P1 - P9) verwebt wird, und der Zeit, zu der das Polkettgarn dieses Schusses geschnitten werden muss, berücksichtigt.
  14. Doppelteppichwebstuhl (2), aufweisend Doppelfach-Gestaltungsmittel, Schussgarn-Einführungsmittel und eine Polkettgarn-Schneidvorrichtung (6) enthaltend einen Messerschlitten (64), der, um Schneidoperationen durchzuführen, Translationsbewegungen (F, B) von einer ersten Seite (G1L) eines Grundgewebes (G1), das auf dem Webstuhl gewebt wird, zu einer zweiten Seite (G1R) dieses Grundgewebes hat, wobei jede Translationsbewegung innerhalb einer Schussperiode, d.h., innerhalb eines Zeitintervalls zwischen zwei Schussgarneinführungen, außerhalb des Zeitintervalls, in welchem das Riet zum Schlagen des Schussgarns bewegt wird, stattfindet,
    dadurch gekennzeichnet, dass der Webstuhl programmierbare Mittel (4) enthält, die die Schneidvorrichtung gemäß einer Schuss-für-Schuss-Sequenz (S1) antreiben (S68), die individuell für jeden Schuss (P1 - P9) definiert ist.
  15. Webstuhl nach Anspruch 14, der auch Berechnungsmittel (4) zum automatischen Editieren eines Webmusters (WP) für einen auf dem Webstuhl gewebten Teppich (C1, C2) und der Schuss-für-Schuss-Sequenz (S1), die von den programmierbaren Mitteln zum Antreiben (S68) der Schneidvorrichtung (6) zu verwenden ist, enthält, wobei die Berechnungsmittel Mittel (44) zum Durchführen von Modifikationen von zumindest der Schuss-für-Schuss-Sequenz (S1) enthalten.
EP11306002.4A 2011-08-01 2011-08-01 Verfahren zum Schneiden von Polkettgarn und zur Implementierung solch eines Verfahrens angepasster Doppelteppichwebstuhl Active EP2554728B1 (de)

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EP11306002.4A EP2554728B1 (de) 2011-08-01 2011-08-01 Verfahren zum Schneiden von Polkettgarn und zur Implementierung solch eines Verfahrens angepasster Doppelteppichwebstuhl
CN201210270542.1A CN102912527B (zh) 2011-08-01 2012-07-31 切割绒头经纱的方法和适于实现该方法的双层地毯织机

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EP11306002.4A EP2554728B1 (de) 2011-08-01 2011-08-01 Verfahren zum Schneiden von Polkettgarn und zur Implementierung solch eines Verfahrens angepasster Doppelteppichwebstuhl

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CN104313770A (zh) * 2014-10-22 2015-01-28 杭州创兴织造设备科技有限公司 一种双层织物切割装置
EP3638834B1 (de) * 2017-06-15 2021-10-20 STÄUBLI BAYREUTH GmbH Webmaschine, verfahren zum gleichzeitigen weben von zwei florgeweben auf einer solchen maschine und mit einem solchen verfahren erhältliches florgewebe

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CN102912527B (zh) 2016-06-01
EP2554728A1 (de) 2013-02-06

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