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EP3864209A1 - Métier à tisser pour la fabrication de tissu comportant des plis, en particulier des plis pour plissé, et/ou des boucles et procédé de fabrication d'un tel tissu - Google Patents

Métier à tisser pour la fabrication de tissu comportant des plis, en particulier des plis pour plissé, et/ou des boucles et procédé de fabrication d'un tel tissu

Info

Publication number
EP3864209A1
EP3864209A1 EP19779837.4A EP19779837A EP3864209A1 EP 3864209 A1 EP3864209 A1 EP 3864209A1 EP 19779837 A EP19779837 A EP 19779837A EP 3864209 A1 EP3864209 A1 EP 3864209A1
Authority
EP
European Patent Office
Prior art keywords
warp
fabric
folds
loops
offs
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.)
Withdrawn
Application number
EP19779837.4A
Other languages
German (de)
English (en)
Inventor
Michael Langer
Kurt Motz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lindauer Dornier GmbH
Original Assignee
Lindauer Dornier GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP3864209A1 publication Critical patent/EP3864209A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D03D11/02—Fabrics formed with pockets, tubes, loops, folds, tucks or flaps
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D39/00—Pile-fabric looms
    • D03D39/22—Terry looms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/005—Independent drive motors

Definitions

  • the invention relates to a weaving machine for producing folds, in particular pleated folds, and / or fabric having loops, and a method for producing a
  • a pleated fold is woven as follows. Until the beginning of the pleated fold, a single-layer fabric is woven with an upper and a lower chain. If the pleated fold is to be woven, the pleated fold becomes a with the start of weaving
  • Warp systems run when a pleated fold is to be woven on the top. Ins
  • the warp system is moved in the upper compartment if the pleated fold is to be created on the underside. If, for example, a fold is to be woven on the top, the lower chain, for example, is moved completely into the lower compartment, with the goods take-off and the lower chain remaining. The pleating is now woven with the top chain. Since the goods are not pulled off, a shawl is created from the point of attachment, which grows to the length of the fold. This means that the pleated fold has an undefined weft density, which results from the binding and the woven material. Therefore this becomes known
  • the pre-cloth method By relieving the front cloth after the sheet stop, the upper chain needs a spring mechanism, for example in the form of a dancer roller known per se, so that the warp tension does not break down. To fix the pleated fold, this scarf is tied with the lower chain. Then a single-layer fabric is woven again, in which all the warp axes are moved. The start, the end and the alignment of the pleated folds are controlled via so-called special pattern tracks.
  • a variant for weaving loops which is known in the prior art, is the principle of terry weaving, in which the so-called basic chain is very tight, whereas the loop chain is loosely tensioned.
  • the loops now result from the fact that preferably three or four shots are not struck directly at the edge of the fabric, but rather are entered at a distance that is usually twice the loop height. This can be done, on the one hand, by means of a so-called articulated drawer, or, on the other hand, by means of a movable brush / chest cavity, which is used to realize the movement of the goods respectively. Only after the last proposal shot are these shots fully fired. The weft threads of the looser loop chain slide on the base chain and thus form loops.
  • terry folds can also be used to create pleats in the border area.
  • the possibility of goods movement is used and the fold height is not determined by the shroud.
  • the lower chain For weaving a pleated fold on the upper side, the lower chain is also moved completely into the lower compartment, and the goods take-off and the lower chain remain.
  • the fold is also woven with the top chain.
  • the goods move away from the binding point by a predetermined shot distance with each shot.
  • the pleated fold is then set up by moving back to the binding point.
  • EP 0 225 239 B1 describes a method by means of which a floating base chain system is withdrawn with a synchronized movement of the warp and goods system and thereby a permanent woven fold is set up in the weaving process.
  • EP 0 339 223 B1 refers to the particular relevance of warp tension for such a fabric manufacturing process.
  • the basic chain is kept under tension with the warp system 1, the goods take-off roller being turned back by the amount of the pleated fabric by means of an electronically controlled return device. This loosens the base chain and winds it back onto the warp beam by means of a central motor. The withdrawal of the chain corresponds to the length of the fold.
  • the weaving machine automatically starts up again.
  • the subsequent sheet stop pushes the first fixing shot of the new binding repeat into the second fixing shot of the previous binding repeat, the tissue which results from the
  • Pleated chain and the fold weft is formed, pushed to the fold.
  • the fixation shot helps to further fix the fold.
  • DE 1 535 575 A describes a method and a device for producing fold fabrics on weaving machines.
  • the creation of a fold in a fabric is effected by pushing on a split warp system.
  • a rocker behind the rear compartment is used to compensate for the back movement of the warp system.
  • the goods deduction movement is switched off, and on the other hand, a chain is put out of use.
  • the backward movement of the warp and thus also of the woven goods is limited by an adjustable pawl that works with an additional locking wheel in the goods take-off device.
  • the object of the invention is to provide a weaving machine for producing folds, in particular pleats, and / or loops, and a method for producing such a weave, the construction of which does not become significantly more complex and with which the production speed is also not restricted , whereby the pleat height and loop height can be adjusted or
  • the weaving machine for producing folds in particular
  • Pleated folds and / or fabric with loops have a fabric take-off and at least two warp drains.
  • the warp threads of the warp let-offs can be supplied from the respective thread stores, whereby the respective drives of the fabric take-off and the warp let-offs are designed and controllable in such a way that the fabric take-off and the warp let-offs move forward in the sense of weaving wrinkle-free or loop-free fabric sections
  • any size of the folds or loops can thus be produced by the realized backward movement of the goods take-off and corresponding warp let-offs which do not produce the folds / loops without a stopping weaving machine.
  • the warp beam provided for the upper chain executes continuous movements, while the warp beam provided for the lower chain and the goods take-off for loop formation and fold weaving carry out backward movements.
  • the warp beam provided for the lower chain and the goods take-off for loop formation and fold weaving carry out backward movements.
  • the backward movement With the backward movement, the woven part behind the binding point becomes, so to speak, against the
  • Goods take-off direction is conveyed back to the binding point in the direction of the reed, so that when driving backwards, possibly over several empty shots, a fold is formed which was previously tied with the floating chain.
  • the goods are also conveyed back in the direction of the reed in the opposite direction of the goods take-off and the loop is set up, possibly also over several empty shots, after it has been tied with the floating chain.
  • drives for the goods take-off as well as for the warp let-offs are provided, by means of which the warp let-offs and / or the
  • a wide variety of fabrics with folds and / or loops can be produced with high productivity, such as carpet fabrics, shading fabrics, wire structures, composite components with profiles and stiffeners, ski fences, special effects for
  • the machine according to the invention already differs from the known pre-cloth method in that, according to the invention, the warp let-offs when weaving, for example, a fold or pleated fold by means of an upper chain and the take-off of goods, with a lowered lower chain, achieve a defined weft density.
  • the fold or pleated fold has been woven to the end, the fold is connected to the lower chain with the following weft and fixed accordingly.
  • a major advantage of the machine according to the invention and the method according to the invention is therefore that the fabric of the fold or pleated fold is constructed with a defined weft density.
  • a spring accumulator which is used in the pre-blanket method to record the existing pre-blanket pump movement, is not required here. It is also possible to weave folds without any modifications, for example spring springs. Depending on the size of the fold and the dynamics of the drive, the slide-open movement may need to be equalized with empty shots. The weaving machine is not stopped.
  • This method also known as the axis reversing method, can also be used
  • the drives for the individual warp let-offs and the goods take-off can be controlled or regulated as desired in the sense of running forward, stopping as well as running backwards, a large number of different warp let-offs can be controlled accordingly.
  • the minimum is to achieve the Principle according to the invention two warp drains correspondingly driven and controllable and at least three threads required. For example, six warp let-offs and more can be controlled. Basically any powered and
  • returnable spool be a corresponding warp let, so that in principle several thousand warp let are possible.
  • the basic idea is that a warp let-off and the take-off are moved away-related. It is therefore possible to produce fabrics without limitation at the loop or fold height. The same applies to the fabric density of the fold or pleated fold itself. So there are completely new and more varied possibilities of
  • Kettablass which consists of a thread, the one whose thread unfolds into a loop
  • the Kettablass which consists of two threads and is available for tying the loop
  • at least one of the two warp drains always runs back.
  • pre-cloth weaving The main difference between pre-cloth weaving and the axis reversing method is that with pre-cloth weaving the fabric density in the fold is undefined and higher than in the rest of the fabric, while with the axis reversing method an adjustable controlled fabric density can also be realized in the fold.
  • the drive train consisting of a pull-in roller, i.e.
  • Warp let-off is understood to mean the drive train consisting of warp beam, gear, motor and electronic converter, with each warp thread possibly being represented by a warp let when weaving from the creel.
  • Thread supply means warp yarn that is on a warp beam in the sense of a
  • Warp thread supply is wound, or is held on a creel, the
  • Warp thread supply is wound on individual bobbins, which are housed in a creel frame. Each individual coil can be moved separately, which is an active
  • dummy roller Position relative to the weaving machine movement, or the entire warp thread family is fed to the weaving process via a so-called dummy roller.
  • the latter is from
  • Loops are understood to mean relieving a floating warp thread by compressing the fabric between the start and end of the floating in the warp direction. If there is no fabric between the start and end of the floatation, a closed loop can be formed. The end of the float comes at the beginning of the floatation.
  • a fold is understood to mean a tissue section which is pushed out or set up from a base fabric and which is woven into the base fabric again at its feet. The height of the loop or fold, i.e. the size of the loop or fold results from the degree of compression. Loops and / or folds can be on the top of the fabric, on the
  • the thread stores are thus preferably designed as warp let-offs with warp beams or, according to a further exemplary embodiment, as warp let-offs in the form of creel spools.
  • warp let-offs are preferably provided.
  • Kettablasses it is thus possible to provide loops or folds of different heights, widths or arrangements with great flexibility at any point.
  • a method for producing a fabric having folds, in particular pleated folds is provided, in which a
  • warp threads of which are preferably supplied in the form of warp beams or creel spools from their respective thread supply.
  • At least one warp let-off and the goods take-off are reversible with respect to their drive direction, which means that this warp-let and the goods take-off can be controlled backwards.
  • Backward is to be understood as a direction opposite to the pull-off direction of the finished woven fabric.
  • a fabric section with at least a first and a second warp let-off is woven in a length defined for the height of the folds, in which the warp threads are not required when weaving the folds
  • Warp let-offs remain in a final position of their shedding tools. This is followed by fixing the woven fold with the warp threads of the warp letters not involved in the fold by changing the compartment with at least one weft insertion. And finally, they won't be at the The folds involved in the warp lowering as well as the goods deduction are moved back to a defined position that defines the fold.
  • a method of making a loop fabric is provided.
  • a goods take-off and at least two warp let-offs are provided, the warp threads of which are supplied from their respective thread supply.
  • the thread supply is preferably defined in the form of warp beams or individual creel spools.
  • At least one warp let-off and the goods take-off are reversible with respect to their drive direction, which means that the drives for this warp-let and the goods take-off can be reversed, so that this warp let-off and the goods take-off into the
  • Opposite direction can be moved.
  • the opposite direction means in a direction opposite to the withdrawal direction for the finished fabric.
  • a non-woven fabric section is first drawn off by means of a fabric take-off and the warp let-offs in the goods take-off direction in a length defined for the loop height, which is followed by a stopping of the loop-forming warp let-offs.
  • the warp threads involved in the loop are fixed with the warp threads of the warp letters not involved in the loop by changing the subject with at least one weft insertion, which is followed by moving back the warp letters not involved in the loops and the goods take-off to a defined position that shapes the loops.
  • the methods preferably have at least one first warp let-off with at least one thread and a second warp let-off with at least two threads.
  • the thread supply of each warp let-off is in each case a warp beam.
  • the erecting movement of the fold is preferably equalized with at least one empty shot.
  • the folds are preferably arranged on the top and / or on the bottom of the fabric.
  • the opening movement of the loop is preferably equalized with at least one empty weft, analogous to the weaving of folds, in particular pleated folds.
  • the loops are arranged on the top and / or the bottom of the fabric. If several independently driven reversible Warp beams are present, folds and / or loops can be generated in any number alternately and possibly only in partial areas of the weaving width. In terms of weaving technology, this means great flexibility.
  • Figure 1 is a stylized sectional side view of a loom according to the invention to illustrate the principle of weaving pleats
  • Figure 2 shows the essential four main steps for producing a pleated fold in one
  • FIG. 3 shows a stylized sectional side view of a weaving machine for weaving loops
  • Figure 4 shows the essential four main steps in loop weaving as a side view of the
  • FIG. 1 shows a stylized side sectional view of a weaving machine 10 by means of which fabrics with pleated folds can be produced.
  • the weaving machine 10 has a lower warp 1, which is wound on the warp beam shown and unwound from there and fed to the actual weaving.
  • the weaving machine 10 has an upper warp 2, which is wound on a corresponding warp beam and unwound from there and fed to the actual weaving.
  • a goods deduction 3 is shown, by means of which the manufactured goods are drawn in the weaving direction 14.
  • a shed 7 is spanned with shed shafts 8 designed as heald frames 8, into which weft threads (not shown) are inserted.
  • a sley 9 is provided for the registered ones
  • the lower chain 1 is shown as a solid line
  • the upper chain 2 is shown as a dashed line, which lead in the direction of goods take-off 3, which winds the finished goods, also shown in dashed lines, on a goods tree 13.
  • Both the warp beam for the lower chain 1 and the goods take-off 3 with their corresponding drives are against the goods take-off direction for the
  • ready woven fabrics can be moved backwards. This backward movement is required to set up each woven section for a pleat fold, which is fixed before moving back into the fabric.
  • FIG. 2 shows the essential steps I to IV in order to weave a pleated fold 11.
  • the lower chain 1 shown in Figure 1 consists of lower warp threads 4, and the upper chain 2 also shown in Figure 1 consists of upper warp threads 5, as shown in Figure 2.
  • step I the lower warp threads 4 and the upper warp threads 5 or the lower warp 1 and the upper warp 2 form a closed fabric.
  • both the lower warp 1 and the upper warp 2 and thus the lower warp threads 4 and the upper warp threads 5 are moved in the weaving direction.
  • the goods take-off 3 pulls off the fabric.
  • a weft thread 6 is inserted into each shed, followed by closing the shed and tying the weft 6 with a change of shed. After the weft thread 6 has set, it is attached to the binding point by means of the sley 9 (see FIG. 1).
  • step II the pleated fold is woven.
  • the top warp 2 forms a fabric with the top warp threads 5 (see dashed lines) and the weft threads 6.
  • the bottom warp threads 4 (see solid lines) float underneath the fabric, so they are not made with the fabric consisting only of the top warp threads 5 and the weft threads 6 connected.
  • step III the pleated fold is fixed with the lower warp threads 4. This is done by at least one change of subject with weft insertion.
  • the pleated fold 11 is set up. This is done by stopping the upper chain 2 with the upper warp threads 5. By simultaneously reversing the lower chain 1 with the lower warp threads 4 and the take-off 3 against the weaving direction 14, the pleated fold 11 is set up. When the pleated fold 11 is set up, the upper chain 2 with the upper warp threads 5 can stop completely or can perform independent compensating movements.
  • step IV it can be seen in the illustration that the pleated fold 11 is tied with the lower warp threads 4 of the lower warp 1. Based on the length of the floating of the lower warp threads 4 of the lower warp 1, the possible height and thus the size of the pleated fold 11 is determined without having to change further settings on the machine. It is possible to create closed as well as open pleats 1 1 at the root of the pleated fold. This means there is a high degree of flexibility for different pleated folds.
  • Pleated fold 11 which is shown in FIG. 2, is formed in this case with the upper chain 2 or the upper warp threads 5. It is also possible to use the lower warp threads 4 accordingly
  • Form pleated fold 11 which is then tied with the top warp threads 5.
  • the pleated fold 11 is set up, but it can also be on the
  • FIG. 3 shows a stylized cross-sectional side view of a weaving machine 10 analogous to the illustration according to FIG. 1, which is provided in a basic illustration for weaving loops with the aid of movements of the warp let-off and the take-off.
  • Reference number 1 is the warp beam for the lower chain, from which the lower warp threads 4 are fed to the weaving.
  • a warp beam for an upper warp 2 is also shown, from which upper warp threads 5 are fed to the weaving.
  • the warp threads form a shed 7, which is realized with the aid of the shed forming means 8.
  • a weft thread inserted into the shed 7 is struck at the binding point by means of the weaving drawer 9.
  • the finished fabric in this case with a loop 12 produced (see FIG. 4), is pulled off by means of a goods take-off 3.
  • the drives for the lower chain 1 and the goods take-off 3 are designed such that their direction of rotation can be reversed, so that the lower chain 1 with the lower warp threads 4 and the goods take-off 3 are one
  • step I a fabric is woven without loops.
  • the lower chain 1 with the lower warp threads 4 and the upper chain 2 with the upper warp threads 5 form a closed fabric, both the lower chain 1 and the upper chain 2 rotating in the weaving direction 14.
  • the fabric take-off 3 also pulls the finished fabric in the weaving direction 14 and feeds it to a fabric tree 13 also shown in FIG. 3 (see FIG. 3).
  • step II floatation is carried out. For the floatation, the lower warp threads 4 and the upper warp threads 5 are from the respective warp beams, ie from the
  • step III The floatation is then fixed in step III. This happens because at the end of the floatation, i.e. when the desired float length is reached, the lower warp threads 4 and the upper warp threads 5 are fixed together. This is done by at least one
  • step IV This is done by first stopping the upper chain 2 with the upper warp threads 5. Since the lower chain 1 and the goods take-off 3 move counter to the weaving direction 14, the loop 12 is raised. In this way, an arbitrary loop height and an arbitrary loop density for the fabric to be provided with loops can be applied to both its top and its

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

Abstract

L'invention concerne un métier à tisser pour la fabrication de tissu qui est pourvu de plis, notamment de plis pour plissé, et/ou de boucles. Le métier à tisser présente un enroulement de tissu (3) et au moins deux dérouleurs de chaîne (1, 2), dont les fils de chaînes sont livrables par chaque réserve de fils. Chaque entraînement de l'enroulement de tissu (3) et des dérouleurs de chaîne (1, 2) est conçu et commandable ou réglable de telle manière que l'enroulement de tissu (3) et les dérouleurs de chaîne (1, 2) exécutent, lors du tissage de portions de tissu dépourvues de plis ou de boucles, un mouvement vers l'avant dans la direction de l'enroulement de tissu (14) et, lors du placement des plis ou des boucles, l'enroulement de tissu (3) et les dérouleurs de chaîne ne produisant pas les plis/boucles exécutent, sans arrêter le métier à tisser (10), respectivement un mouvement vers l'arrière à l'inverse de la direction de l'enroulement de tissu (14) et les dérouleurs de chaîne pour les plis ou boucles exécutent un mouvement indépendant des autres dérouleurs de chaîne sans que le métier à tisser ne s'arrête. Les mouvements vers l'arrière sont adaptés aux tailles et empreintes des plis ou boucles. De plus, l'invention concerne un procédé de fabrication d'un tissu présentant un pli, en particulier un pli pour plissé, et un procédé de fabrication d'un tissu présentant une boucle.
EP19779837.4A 2018-10-11 2019-09-26 Métier à tisser pour la fabrication de tissu comportant des plis, en particulier des plis pour plissé, et/ou des boucles et procédé de fabrication d'un tel tissu Withdrawn EP3864209A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018217421.0A DE102018217421B4 (de) 2018-10-11 2018-10-11 Webmaschine zur Herstellung von Falten, insbesondere Plisseefalten, und/oder Schlaufen aufweisendem Gewebe sowie Verfahren zum Herstellen eines solchen Gewebes
PCT/EP2019/076027 WO2020074264A1 (fr) 2018-10-11 2019-09-26 Métier à tisser pour la fabrication de tissu comportant des plis, en particulier des plis pour plissé, et/ou des boucles et procédé de fabrication d'un tel tissu

Publications (1)

Publication Number Publication Date
EP3864209A1 true EP3864209A1 (fr) 2021-08-18

Family

ID=68104616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19779837.4A Withdrawn EP3864209A1 (fr) 2018-10-11 2019-09-26 Métier à tisser pour la fabrication de tissu comportant des plis, en particulier des plis pour plissé, et/ou des boucles et procédé de fabrication d'un tel tissu

Country Status (5)

Country Link
EP (1) EP3864209A1 (fr)
JP (1) JP2022504592A (fr)
CN (1) CN112789372A (fr)
DE (1) DE102018217421B4 (fr)
WO (1) WO2020074264A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1535575A1 (de) 1964-08-21 1970-01-15 Produktionsgen Des Weberhandwe Verfahren und Vorrichtung zur Herstellung von Faltengeweben auf Webmaschinen
CH445405A (de) * 1965-10-29 1967-10-15 Sulzer Ag Webmaschine
FR2591238B1 (fr) 1985-11-14 1988-07-29 Jourquin Andre Procede de fabrication d'un tissu decoratif avec motifs en relief et tissu ainsi obtenu
DE3813740A1 (de) 1988-04-23 1989-11-02 Vorwerk Co Interholding Gewebe zur herstellung eines bauteils
KR101140005B1 (ko) * 2009-03-30 2012-05-02 정태웅 제직기의 역회전 장치 및 역회전 장치를 이용한 직물지의 제조 방법

Also Published As

Publication number Publication date
CN112789372A (zh) 2021-05-11
WO2020074264A1 (fr) 2020-04-16
DE102018217421A1 (de) 2020-04-16
DE102018217421B4 (de) 2022-06-09
JP2022504592A (ja) 2022-01-13

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