EP0979891B1 - Procédé pour former une première et/ou une seconde hauteur de poils pendant le tissage de tissus éponge et métier à tisser pour mettre en oeuvre ce procédé - Google Patents

Procédé pour former une première et/ou une seconde hauteur de poils pendant le tissage de tissus éponge et métier à tisser pour mettre en oeuvre ce procédé Download PDF

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Publication number
EP0979891B1
EP0979891B1 EP99113952A EP99113952A EP0979891B1 EP 0979891 B1 EP0979891 B1 EP 0979891B1 EP 99113952 A EP99113952 A EP 99113952A EP 99113952 A EP99113952 A EP 99113952A EP 0979891 B1 EP0979891 B1 EP 0979891B1
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EP
European Patent Office
Prior art keywords
coupling
coupling mechanism
beat
fabric
weaving
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.)
Expired - Lifetime
Application number
EP99113952A
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German (de)
English (en)
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EP0979891A1 (fr
Inventor
Erwin Geiger
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
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Lindauer Dornier GmbH
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Filing date
Publication date
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP0979891A1 publication Critical patent/EP0979891A1/fr
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Publication of EP0979891B1 publication Critical patent/EP0979891B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D39/00—Pile-fabric looms
    • D03D39/22—Terry looms
    • D03D39/226—Sley control

Definitions

  • the invention relates to a method for forming first and second pile heights during weaving of terry cloth on weaving machines, the pile height formation by a so-called Tissue shifting takes place.
  • a terry loom for terry fabric production with a rotating is known stored fabric feed roller, with a reed that comes in recurring Movement rhythm weft partial stops and one full weft executes, with a pile height forming device, consisting of one in its movement lockable coupling gear, the movement of which with the main drive of the Weaving machine is derived from the eccentric drive and is connected via coupling elements the fabric feed roller for displacing the stop edge of the fabric relative to the latter Basic position is transferred.
  • the previously known terry weaving machine is only able, in addition to a smooth fabric to form a pile height.
  • the invention has for its object in a weaving machine for the production of Terry fabrics in addition to a first pile height at least a second pile height form, the height of which is different from the first pile height, and the formation of the Pile heights are based on the tissue shift.
  • the stop edge of the weaving machine over the fabric feed roller guided and in relatively good frictional connection with it between executing the first of partial weft stops and a full weft stop existing web operations oscillating relative to a length a is moved back and forth to the basic position of the stop edge.
  • the sequence of movements the fabric feed roller is connected to the main drive of the weaving machine by a first one connected coupling gear realized.
  • a second pile height is formed in the same or in a different terry fabric to be produced by transferring the motion sequence of a second coupling gear to the fabric drawing roller by superimposing the motion sequence of the first coupling gear in such a way that between the execution of two partial weft stops and a full weft stop of the reed, the weaving edge is moved back and forth relative to its basic position over a second predetermined length b. Due to the fact that the length amount a is greater than the length amount b, it is inevitable that the first coupling gear realizes a greater pile height than the second coupling gear. The reason for such a result lies, according to the invention, in the definition of the articulation points of the couplings relative to the relevant axis of rotation within a coupling member, on which both coupling gears act.
  • the length a is reduced to the length b after the second coupling gear has been switched on, in accordance with the invention in that the first axis of the coupling element, which is connected to a coupling element of the second coupling gear in a rotationally fixed manner, rotates with a Lever is connected, at the free end of the tab of the coupling member is rotatably mounted.
  • both coupling gearboxes are stored in the weaving machine control
  • the weaving machine realizes a sample program blocked by means known per se so-called smooth weaving. In the manufacture of terry towels are within this Process borders woven.
  • the fabric pull-in roller is operatively connected to a first pile height forming device consisting of a coupling mechanism that can be blocked in its movement, the movement of which is derived from an eccentric drive that is operatively connected to the main drive of the weaving machine, that the fabric feed roller touches the stop edge of the fabric oscillates back and forth relative to the basic position in accordance with the movement sequence of the terry eccentric and that a reed carries out partial weft stops and a full weft stop in synchronization with the tissue displacement.
  • the weaving machine is able to produce terry fabrics with only one pile height in addition to plain fabrics. This is where the invention according to claim 8 comes in.
  • a second pile height forming device with a Has coupling gear the sequence of movements of a second with the main drive the weaving machine is derived from the terry eccentric drive and its Movement in turn on the coupling gear of the first pile height forming device and connecting the coupling gear of the second pile height forming device to one another Coupling member is transferred such that the fabric feed roller when the first and second coupling gear a relatively small displacement of the stop edge of the Fabric runs than it can execute the first coupling gear.
  • the two coupling gears are used common coupling link from a between the fabric feed roller and the Eccentric drives arranged in a machine-fixed manner and rotatably mounted axis that with a coupling element of the second coupling gear is in a rotationally fixed connection, also from an axially spaced from the axis and rotatably with this axis connected lever arm, on the radially spaced from the central axis of the aforementioned Axially pivotably engages a tab that connects the first coupling gear with the Fabric drawing roller connects.
  • the drive for executing a so-called Fabric displacement derived from the main drive shaft of the loom.
  • a so-called terry cloth eccentric is used for this running circumferential contour scanned and on a suitable for moving the tissue Coupling gear is transmitted.
  • the solution according to the invention consists of a first coupling gear 4 and a second coupling gear 11, each with a blocking device 17, 17a, 19 and 18, 18a, 20 which can be controlled by means of the control 22 and the valves 23 and 24.
  • the first coupling gear 4 consists of a coupling element 6 pivotally mounted about the machine-fixed axis 31 in the form of an angle lever, the lever arm located above the eccentric 5, spaced apart from the axis 31, carries a scanning roller 32 which is connected to the peripheral surface 5a of the eccentric 5 by an outdoors one End of the aforementioned lever arm acting tension spring 6b is operatively connected.
  • the vertically extending lever arm of the angle lever 6 has a plurality of articulation points 6c located on a circular arc, in which one end of the coupling element 7 can be articulated.
  • Each articulation point 6c defines a first pile height to be realized or a first length dimension a.
  • the other end of the coupling element 7 is connected to an articulation point 7a of the tab 16d.
  • the articulation point 7a lies approximately in the middle of the tab.
  • the tab 16d is part of the machine-fixed coupling member 16. Below the articulation point 7a, the tab 16d is fork-shaped, as can best be seen in FIG.
  • the fork is penetrated by an axis 16c, which is received in a rotationally fixed manner in the free end of the lever 16b and which supports the bracket 16d so that it can pivot.
  • the other free end of the lever 16b is rotatably received by a machine-fixed but rotatably mounted axis 16a.
  • the axis 16a carries a coupling element 15 which is connected to the latter in a rotationally fixed manner, at the end of which the coupling element 14 of the second coupling gear 11 engages.
  • the further connections within the second coupling gear are shown in the description below.
  • the tab 16d has a further articulation point 8a, in which the Coupling element 8 is articulated with one end.
  • the other end of the coupling element 8 is in a slot-shaped articulation 9a of the non-rotatable with the fabric feed roller 1 connected coupling element 9 articulated. This is the outgoing from the eccentric 5 and Movement sequence of the coupling gear 4 transmitted to the fabric feed roller 1 Are defined.
  • the sequence of movements of the coupling mechanism 11 added to the coupling mechanism 4 according to the invention is derived from a terry cam 12, which in turn is operatively connected to the main drive of the weaving machine, not shown here.
  • a coupling element 13 loaded with the tension spring 13b is, like the coupling element 6, pivotably mounted on the common axis 31.
  • the eccentric movement is also transmitted here by means of a scanning roller 33 to the coupling element 13, the oscillating pivoting movement of which acts on the coupling element 16 via the coupling elements 14 and 15 and from there on the coupling roller 8 via the coupling elements 8, 9.
  • Each coupling gear 4, 11 is functionally equipped with a blocking device in the form of a blocking lever 17 or 18 pivotably mounted at 17a or 18a, each lever 17, 18 being operatively connected to a piston-cylinder unit 19 or 20.
  • a blocking device in the form of a blocking lever 17 or 18 pivotably mounted at 17a or 18a, each lever 17, 18 being operatively connected to a piston-cylinder unit 19 or 20.
  • the units 19, 20 are pressurized on the piston rod side via a control valve 23 or 24.
  • a hook-like recess of the blocking lever 17, 18 strikes the abutment 6a or 13a of the coupling element 6 or 13.
  • the coupling elements 6, 13 are unlocked when the units are depressurized 19, 20, 21 by means of the tension springs 17b or respectively acting on the coupling elements 6 or 13 18b.
  • the terry formation devices 4, 11 are equipped with a pneumatic safety circuit, consisting of an additional piston-cylinder unit 21, which is operatively connected to the blocking lever 18.
  • a pressure line 28 is integrated between the unit 19 and the valve 23, which leads to the additional unit 21.
  • the weaving machine carries out a so-called smooth weaving (border weaving). If only the coupling gear 4 is active, ie the coupling gear 11 is blocked, the movement of the terry eccentric 5 transmits its movement to the tab 16d by means of the coupling elements 6, 7.
  • the tab 16d pivots about the central axis 16c 'of the axis 16c and transfers the pivoting movement by means of the coupling elements 8 and 9 to the fabric pull-in roller 1.
  • the fabric draw-in roller 1 then oscillates the fabric stop edge 10a of the fabric 10 by the length a.
  • the weft threads entered and tied in the shed 33 are then beaten by a full weft stop of the reed 2 and the warp threads of the pile chain are set up as the pile height by the amount a. If the second pile height is to be realized in a fabric that is smaller than the pile height a due to the method, the weaving process is activated via the control 22, the second coupling gear 11.
  • the oscillating motion transmitted from the terry cam 12 to the coupling element 13, via the coupling elements 14 and 15 to the axis 16 of the coupling element leads to the fact that the lever 16b, which is non-rotatably connected to the axis 16a, the central axis 16c 'of the axis 16c which supports the tab 16d pivoted in the direction of the double arrow 34 and thereby the articulation point 8a and thus the position of the coupling element 8 articulated on the tab 16d is shifted in the direction of the arrow 35.
  • the displacement then has the effect that the tissue stop edge, starting from its basic position, is only shifted in an oscillating manner by the length dimension b.
  • the result is a second pile height, which corresponds approximately to the height dimension b.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Woven Fabrics (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)

Claims (12)

  1. Procédé de formation de premières et/ou deuxièmes hauteurs de poil pendant le tissage d'un tissu éponge sur des machines à tisser, selon lequel, pendant le tissage entre l'exécution de premières opérations de tissage formées par des butées partielles du fil de trame et une butée pleine du fil de trame d'un peigne miseur (2), un processus de mouvements commandé par un excentrique, d'un premier mécanisme à bielle (4) provoque un déplacement en va et vient du bord de butée (10a) du tissu (10) par rapport à la position de base de celui-ci, de manière oscillante sur une première longueur (a) prédéfinie, ce qui entraíne la formation de la première hauteur de poil souhaitée, caractérisé en ce que des deuxièmes hauteurs de poil souhaitées sont formées par le fait qu'un processus de mouvements, commandé par un excentrique, d'un deuxième mécanisme à bielle (11) se superpose au processus de mouvements du premier mécanisme à bielle (4), de telle sorte que, entre l'exécution de deuxièmes opérations de tissage formées par des butées partielles du fil de trame et une butée pleine du fil de trame d'un peigne miseur (2), le bord de butée (10a) du tissu (10) est déplacé en va et vient par rapport à la position de base de celui-ci, de manière oscillante sur une deuxième longueur (b) prédéfinie.
  2. Procédé selon la revendication 1, caractérisé en ce que la superposition des processus de mouvements est due à la réalisation d'une liaison active entre le deuxième mécanisme à bielle (11) et un entraínement à excentrique (12) correspondant à l'entraínement du premier mécanisme à bielle (4).
  3. Procédé selon la revendication 2, caractérisé en ce que la liaison active entre les mécanismes à bielle (4, 11) et les entraínements à excentrique (5, 12) de ceux-ci est supprimée par voie pneumo-électrique et est réalisée par voie mécanique.
  4. Procédé selon la revendication 1, caractérisé en ce que le processus de mouvements du deuxième mécanisme à bielle (11) entraíne un déplacement (b) du tissu, qui est relativement plus court que le déplacement (a) du tissu réalisé par le processus de mouvements du premier mécanisme à bielle (4).
  5. Procédé selon la revendication 1, caractérisé en ce que, pour former les premières hauteurs de poil, le processus de mouvements du premier mécanisme à bielle (4) est effectué par le blocage du processus de mouvements du deuxième mécanisme à bielle (11).
  6. Procédé selon la revendication 1, caractérisé en ce que, pour former les deuxièmes hauteurs de poil, le processus de mouvements du deuxième mécanisme à bielle (11) est effectué conjointement avec le processus de mouvements du premier mécanisme à bielle (4).
  7. Procédé selon la revendication 1, caractérisé en ce qu'un processus de tissage lisse est obtenu par le fait que les processus de mouvements des deux mécanismes à bielle (4, 11) sont bloqués.
  8. Machine à tisser du tissu éponge destinée à la mise en oeuvre du procédé selon la revendication 1, comprenant un cylindre de rentrage du tissu (1), logé de manière rotative, un peigne miseur (2), qui exécute dans un rythme de mouvements répétés les butées partielles du fil de trame et une butée pleine du fil de trame, une première unité de formage des hauteurs de poil pour des premières hauteurs de poil, formée par un mécanisme à bielle (4), susceptible d'être bloqué dans son mouvement et dont le mouvement est dérivé d'un entraínement à excentrique (5), en liaison active avec l'entraínement principal de la machine à tisser, et peut être transmis par l'intermédiaire d'un organe de couplage et d'éléments de couplage vers le cylindre de rentrage du tissu (1) pour déplacer le bord de butée (10a) du tissu (10) par rapport à la position de base de celui-ci, caractérisée en ce qu'une deuxième unité de formage des hauteurs de poil est formée par un mécanisme à bielle supplémentaire (11), dont le processus de mouvements est dérivé d'un deuxième entraínement à excentrique (12), en liaison active avec l'entraínement principal de la machine à tisser, et dont le mouvement peut être transmis sur un organe de couplage (16) reliant entre eux le premier mécanisme à bielle (4) et le mécanisme à bielle supplémentaire (11), de telle sorte que, lorsque le premier et le deuxième mécanisme à bielle (4, 11) sont actifs, le cylindre de rentrage du tissu (1) effectue un déplacement du bord de butée (10a) du tissu (10) plus court que lorsque le premier mécanisme à bielle (4) est seul actif.
  9. Machine à tisser du tissu éponge selon la revendication 8, caractérisée en ce que l'organe de couplage (16) est formé par un axe (16a) fixé contre la machine entre le cylindre de rentrage du tissu (1) et les entraínements à excentrique (5, 12) et logé de manière rotative, lequel axe est relié de manière à ne pas tourner avec un élément de couplage (15) du deuxième mécanisme à bielle (11), ainsi que par un bras de levier (16b) écarté axialement de l'élément de couplage (15) et relié de manière à ne pas tourner avec l'axe (16a), contre lequel bras de levier entre en prise une patte (16d) écartée radialement de manière pivotante de l'axe central (16a') de l'axe (16a), ladite patte reliant le premier mécanisme à bielle (4) avec le cylindre de rentrage du tissu (1).
  10. Machine à tisser du tissu éponge selon la revendication 8, caractérisée en ce que les éléments de couplage (6, 13) des mécanismes à bielle (4, 11), lesquels sont en liaison active avec les entraínements à excentrique (5, 12), peuvent être bloqués chacun par un levier de blocage (17, 18), qui est relié à des moyens (19, 20) susçeptibles d'être sollicités par voie pneumatique et est logé de manière fixe contre la machine.
  11. Machine à tisser du tissu éponge selon les revendications 9 et 10, caractérisée en ce que les moyens (19, 20, 21) susceptibles d'être sollicités sont formés par au moins une unité vérin-piston reliée au levier de blocage (17, 18), une commande (22), une vanne pilote (23, 24) actionnée par voie électromagnétique et associée à chaque unité vérin-piston, une source de pression (25) et plusieurs conduites de pression et de commande reliant les moyens susceptibles d'être sollicités.
  12. Machine à tisser du tissu éponge selon la revendication 11, caractérisée en ce que le levier de blocage (18) du deuxième mécanisme à bielle (11) est relié à une deuxième unité de vérin-piston (21), qui peut être sollicitée par l'intermédiaire de la vanne pilote (23) commandant l'unité de vérin-piston (19) du levier de blocage (17).
EP99113952A 1998-08-12 1999-07-17 Procédé pour former une première et/ou une seconde hauteur de poils pendant le tissage de tissus éponge et métier à tisser pour mettre en oeuvre ce procédé Expired - Lifetime EP0979891B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19836453 1998-08-12
DE19836453A DE19836453C1 (de) 1998-08-12 1998-08-12 Verfahren zum Bilden erster und zweiter Florhöhen beim Weben von Frottiergewebe und Webmaschine zur Durchführung des Verfahrens

Publications (2)

Publication Number Publication Date
EP0979891A1 EP0979891A1 (fr) 2000-02-16
EP0979891B1 true EP0979891B1 (fr) 2003-01-22

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EP99113952A Expired - Lifetime EP0979891B1 (fr) 1998-08-12 1999-07-17 Procédé pour former une première et/ou une seconde hauteur de poils pendant le tissage de tissus éponge et métier à tisser pour mettre en oeuvre ce procédé

Country Status (5)

Country Link
US (1) US6112773A (fr)
EP (1) EP0979891B1 (fr)
JP (1) JP3108066B2 (fr)
AT (1) ATE231572T1 (fr)
DE (2) DE19836453C1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10054851A1 (de) 2000-05-12 2002-05-29 Dornier Gmbh Lindauer Frottierwebmaschine
DE10023444A1 (de) * 2000-05-12 2001-11-29 Dornier Gmbh Lindauer Frottierwebmaschine
DE10023445A1 (de) 2000-05-12 2001-11-29 Dornier Gmbh Lindauer Frottierwebmaschine
US9828704B2 (en) * 2015-09-10 2017-11-28 Welspun India Limited Terry article with synthetic filament yarns and method of making same
US9850599B2 (en) * 2015-09-24 2017-12-26 Standard Textile Co., Inc. Woven terry fabric with controlled weight distribution and articles made therefrom
US20200248345A1 (en) * 2019-02-06 2020-08-06 Sobel Westex Terry fabric having surfaces with varying pile weights
CN110714260A (zh) * 2019-11-19 2020-01-21 江苏莱纳多智能装备有限公司 一种双剑杆多经轴的绒毯织机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1739205A (en) * 1928-01-04 1929-12-10 Crompton & Knowles Loom Works Loom for weaving terry fabrics of different heights
CH633837A5 (de) * 1978-06-30 1982-12-31 Rueti Ag Maschf Verfahren zur herstellung von florgewebe und webmaschine zur durchfuehrung des verfahrens.
US4721134A (en) * 1986-08-04 1988-01-26 West Point Pepperell, Inc. Terry loop ratio control device
US5392817A (en) * 1991-06-11 1995-02-28 Sulzer Brothers Limited Apparatus for altering the loop length of terry cloth
IT1267447B1 (it) 1993-09-13 1997-02-05 Toyoda Automatic Loom Works Procedimento ed apparecchio per la formazione del pelo in una macchina per la tessitura di tessuti a pelo.
JP3370398B2 (ja) * 1993-09-29 2003-01-27 株式会社豊田自動織機 パイル織機におけるパイル形成方法
DE59309910D1 (de) * 1993-10-14 2000-01-27 Rueti Ag Maschf Verfahren zur Vermeidung von Anlassstellen im Gewebe in einer Webmaschine
DE19537277C1 (de) * 1995-10-06 1996-08-08 Dornier Gmbh Lindauer Frottierwebmaschine mit einer Florhöhenverstelleinrichtung

Also Published As

Publication number Publication date
DE19836453C1 (de) 1999-11-25
JP2000064151A (ja) 2000-02-29
JP3108066B2 (ja) 2000-11-13
EP0979891A1 (fr) 2000-02-16
DE59904077D1 (de) 2003-02-27
US6112773A (en) 2000-09-05
ATE231572T1 (de) 2003-02-15

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