EP0980448B1 - Machine a tisser a lances - Google Patents

Machine a tisser a lances Download PDF

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Publication number
EP0980448B1
EP0980448B1 EP98924228A EP98924228A EP0980448B1 EP 0980448 B1 EP0980448 B1 EP 0980448B1 EP 98924228 A EP98924228 A EP 98924228A EP 98924228 A EP98924228 A EP 98924228A EP 0980448 B1 EP0980448 B1 EP 0980448B1
Authority
EP
European Patent Office
Prior art keywords
guide element
guide
rapier
gripper
shed
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
EP98924228A
Other languages
German (de)
English (en)
Other versions
EP0980448A1 (fr
Inventor
Ignace Meyns
Kurt Slosse
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.)
Picanol NV
Original Assignee
Picanol NV
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 Picanol NV filed Critical Picanol NV
Publication of EP0980448A1 publication Critical patent/EP0980448A1/fr
Application granted granted Critical
Publication of EP0980448B1 publication Critical patent/EP0980448B1/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
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/277—Guide mechanisms

Definitions

  • the invention relates to a rapier weaving machine with at least a gripper belt receiving a gripper, which by means of a drive wheel in and out of a shed is and that outside the shed by means of guidance is guided, the gripper belt in contact with the drive wheel hold and align to the shed.
  • a rapier weaving machine is known from US Pat. No. 5,413,151 which is a weft thread by means of two hooks, each on one flexible rapier are attached, entered in a shed becomes.
  • a donor gripper brings the weft from one Side of the shed from about to the shed center, where it is taken over by a taker rapier who takes the weft then to the opposite side of the shed transported.
  • the gripper belts are each using a Drive wheel moved into and out of the shed.
  • Guide means are provided outside the shed, which the rapier belt between the drive wheel and the shed to lead. These guide means hold the gripper belts with the Drive wheel in contact and align the gripper belts to the Shed.
  • Guide means are mounted on the sley, which are moved in and out of the shed can and which guide the gripper belts within the shed.
  • the position of the rapier belt within the shed essentially through the arrangement the drive wheels on the frame of the rapier weaving machine certainly.
  • the angle at which the drive wheels are related of the frame are arranged, and the geometry of the Shed are usually chosen so that the gripper belt occupies a position within the shed in which the largest possible number of different warp threads and weft threads can be woven without too many thread breaks in the area of mounted on the drawer and in the Guide means movable in and out of the shed occur.
  • the determination of the angle of the drive wheels at one the gripper machine limits the range of possible ones warp and weft threads to be woven.
  • the set angle, under which the drive wheels are arranged on the frame are practical with a rapier weaving machine no longer changeable.
  • the invention has for its object a rapier weaving machine of the type mentioned at the beginning to create a larger one Variety of wefts and warps to be woven enables a greater variety of possible shed geometries.
  • the invention enables that in a rapier weaving machine, in which the drive wheels against the frame of the Rapier weaving machine arranged at a defined angle are changed, the position or angular position of the gripper belts with which these are introduced into a shed.
  • the guide means arranged outside the shed subject the gripper belt (s) to torsion so that the position or the angular position of the gripper belts within of the shed largely from the angular position of the drive wheels is independent.
  • This makes it possible to change the position or angular position of the or the gripper belts to a desired Adjust the geometry of a shed, which is essentially of depends on the type of warp threads and the type of weft threads which are woven. This makes it possible, although the drive wheels at a predetermined angle on the frame of the Loom are arranged a larger number of types of warp threads and weft threads under optimal conditions interweave.
  • two or more guide means with different degrees of rotation Guides provided that are interchangeable on the rapier weaving machine are attached.
  • first guide element and the second guide element are in the area of the drive wheel a first guide element and at a distance from the first Guide element a second guide element next to the shed arranged, the output of which is to a tangential plane to the drive wheel is rotated.
  • first guide element and the second guide element essentially straight guides for the gripper belt, that are twisted against each other. Twisting the Gripper belt and thus the setting of the position or Angle, which the rapier tape takes up in the shed, is thus made between the first guide element and the second guide element.
  • the gripper belt twisting third guide element is arranged. At this Embodiment is the gripper belt in the area in which it is twisted.
  • the third guide element is formed from two leaf springs, the one running in the direction of movement of the gripper belt Longitudinal axis are kept twisted and the gripper belt to lead between them.
  • the gripper belt can with this Asufaufform according to a so-called natural deformation twist, causing the tensions within the gripper belt, that arise due to the rotation, kept low become.
  • the guides starting from the first guide element to gradually increasing angles are rotated.
  • the gripper belt is performed several times during twisting, so that it during of twisting takes a controlled position.
  • the second guide element forms a twisted guide, whose input with the output of the first guide element in essentially escapes. Again, the gripper element during of twisting in a defined manner.
  • the second guide element with the one or more parts third guide element and / or with the first guide element forms an interchangeable assembly.
  • Such an assembly can be precisely pre-assembled so that the individual Guide elements exactly to each other and to the drive wheel as well are aligned with the shed.
  • leaves the assembly is in a simple manner exactly to the longitudinal axis align the gripper belt.
  • a gripper belt with an encoder gripper and a gripper belt with a slave gripper provided each on opposite sides of the shed are guided by means of guidance that the associated gripper belt at the same or different angles twist. Due to the selectable orientation of the two Gripper belts to each other can be adjusted further the shed geometry and the types of warp and weft make.
  • the rapier weaving machine shown in Fig. 1 has two Gripper belts 1, 2, which have a master gripper 3 and a slave gripper 4 in opposite directions in the direction of motion M in a shed move in and out of it.
  • the gripper belts 1, 2 are driven by means of drives 5, 6 which Side frames 7, 8 of the rapier weaving machine are arranged.
  • she each contain a drive wheel 9, 10 for driving the associated gripper belt 1, 2.
  • the gripper belts 1, 2 are fixed at one end to the drive wheels 9, 10 and run around this.
  • the drive wheels 9, 10 are by means of a power transmission device 11, 12 driven.
  • the rapier weaving machine is stationary outside the shed arranged guide means for guiding the gripper belts 1, 2 between the respective drive wheel 9, 10 and Shed.
  • These guide means each contain first guide elements 13, 14 to the gripper belts 1, 2 in the area the drive wheels 9, 10 substantially tangential to the drive wheels 9, 10 and to be in contact with them hold.
  • the guide means also contain second guide means 15, 16, which are arranged next to the shed and the align the looper belts 1, 2 to the shed.
  • These leadership elements 15, 16 are on the side frame 7, 8 in one Distance from the first guide elements 13, 14 attached.
  • a sley 17 is mounted on a reed 18 is attached.
  • the sley 17 is with Provides drives 19, 20 which are in synchronism with the drives 5, 6 to run.
  • Such guide means 21 are, for example, in US 5 413 151, so that it is not further explained here become.
  • warp threads 22 are used in the weaving direction, inter alia, by means of the Weave 18 guided and extend substantially across the entire width of the reed 18.
  • the shed 23 is formed between two sets of warp threads and by means of the reed and the edge 33 of the fabric 24 limited, to which the weft threads are struck.
  • a completely open shed 23 is present when the shed 17 with the reed is in the rear position on that of the Tissue 24 side facing away. Are in this position the guide means 21 within the shed 23 and are essentially aligned with those next to the shed 23 Stationarily arranged second guide elements 15, 16.
  • the Shed 23 is by means of only schematically represented shed training means formed, for example by means of heald frames 32.
  • the underside of a flat, essentially rectangular Cross section of gripper belt 1 runs in a level 34 which is below the fabric edge 33 of the fabric 24 lies.
  • the location and course of this level 34 is from significant as it affects the number possible warp thread breaks in the area of the guide means 21 can occur.
  • the first guide elements 13 preferably consist of a block made of metal (Fig. 3), which means Screws 70 is attached to the side frame 7.
  • the block is with a U-shaped recess 27 open to the drive wheel 9 provided the top and the narrow sides of the gripper belt leads.
  • the guidance of the recess formed by the first guide element 13 extends in a tangential plane to the drive wheel 9.
  • the drive wheel 9 is a gear that engages with its teeth in recesses 59 of the gripper belt 1.
  • the drive wheel 9 slightly inclined, so that in the recess 27 of the first Guide element 13 guided gripper belt 1 at an angle A1 runs to the horizontal.
  • the second guide element fixed to the side frame 7 15 has a cross section of the gripper belt 1 adapted recess 25, a in the embodiment rectangular recess 25 which surrounds the gripper belt 1 and a guide for the top, bottom and the two Forms narrow sides.
  • the gripper belt 1 is in this recess 25 largely free of play, positively guided.
  • the recess 25 runs in the direction of movement M of the gripper belt 1.
  • the recess 25 is upwards by means of a slot 26 open so that the encoder gripper 3 in the range of Guide element 15 can move.
  • Fig. 2 is, the guide element 15 by means of the guide serving recess 25, the gripper belt 1 such that its Bottom lies in level 34.
  • the guide element 15 is included its recess 25 serving as a guide around the longitudinal central axis 28 of the gripper belt 1 rotated so that the gripper belt 1 in the area of the guide element 15 under a Angle A2 runs to the horizontal and at this angle is aligned to the shed 23.
  • the gripper belt 1 is between the output 29 of the first guide element 13 and the input 30 of the second guide element 15 to its Longitudinal central axis 28 rotated by an angle A3. This twist is also in the representation of the gripper belt 1 in Area of the openings 59 and the narrow sides in Fig. 4 to see.
  • the third guide element 35 is two apart to each other and to the first guide element 13 and to the second guide element 15 arranged blocks 36, 37 on the with straight cutouts 38 and serving as guides 39 are provided, the top and side surfaces of the Enclose the gripper belt.
  • blocks 36 and 37 In the area of blocks 36 and 37 is the underside of the gripper belt 1 by means of strips 60, 41 guided, which cover the recesses 38, 39 and thus together with these recesses 38, 39 the gripper belt Form 1 all-round guide.
  • the first guide element 13, the second guide element 15 and the intermediate third guide element 35 form thus an assembly that is simple in total can be replaced if the angle of rotation A4 to the the gripper belt 1 is rotated (Fig. 6) can be changed should.
  • the entire Assembly in a simple manner with respect to the longitudinal central axis Align 28 of the hook belt 1.
  • the gripper belt 1 in the area of the third guide element between two leaf springs 42, 43 guided, the leaf spring 42 on the top and the leaf spring 43 at the bottom of the Gripper belt is applied.
  • the leaf springs 42, 43 are in two Distance between positions between holding pieces 64, 66 held, fastened to the strips 41, 60 by means of screws are.
  • Between the leaf springs 42, 43 are intermediate pieces 65 attached as guides for the narrow sides serve the gripper belt 1 and its thickness to the thickness of the Gripper belt is adapted.
  • the two leaf springs 42, 43 are arranged so that the first guide element 13 facing Input with the guide element 13 and the output is aligned with the guide element 15 so that the twisting of the Gripper belt 1 takes place in the area of the leaf springs 42, 43.
  • the gripper belt 1 is rotated through an angle A5.
  • this is about its middle one Longitudinal axis 28 twisted gripper belt 1 in the position dashed shown it at the exit of the middle guide element 35 and in the area of the second guide element 15 occupies.
  • the longitudinal central axis 28 of the gripper belt 1 runs essentially straight between the first guide element 13 and the second guide element 15.
  • this exists third guide element 35 from several in a row at a distance arranged parts 48, 49, 50, 51, each with a Guide slot 44, 45, 46, 47 provided for the gripper belt 1 are.
  • the slot 44 of part 48, which is the first guide member 13 faces, runs in alignment with the guide this first guide element 13.
  • the rotation of the gripper belt 1 is thus between parts 48, 49, 50 and 51 in steps or gradually with - starting from part 48 to the part 51 - increasing angles.
  • Parts 48 to 51 are on attached to the approach 40 of the second guide element 15.
  • This second guide element 15 is also with a holder 66 to which the first guide element 13 is attached is.
  • the guide means thus form an assembly, which as such on the side frame 7 of the rapier weaving machine is appropriate.
  • 17 and 18 serves as third guide element 35 a block 67, in which a Gripper belt 1 surrounding guide channel 52 is incorporated, which rotates between its entry 53 and its exit 54 and rotates the gripper belt 1 guided therein.
  • a Gripper belt 1 surrounding guide channel 52 which rotates between its entry 53 and its exit 54 and rotates the gripper belt 1 guided therein.
  • the adjoining second guide element 15 which faces the shed 23, becomes the rapier belt guided in a straight line by means of a guide channel 68, so that it between the input 68 and the output 69 of this second Guide element 15 is not rotated further.
  • block 67 of the third guide element closes 35 directly on the second guide element 15, i.e., output 54 of block 67 is at input 68 of the guide element 15.
  • Embodiments are block 67 and the second guide element 15 made in one piece. Since the gripper belt 1 driven gripper 3 are moved out of the shed 23 must be useful not only the guide element 15, but also block 67 with a slot open at the top Mistake.
  • the second guide member 15 a about the longitudinal axis 28 of the gripper belt 1 to be rotated guide channel 57, so that the rotation of the gripper belt 1 the desired angle within the second guide element 15 takes place, i.e. between its entrance 55 and its Exit 56.
  • the guide channel 57 is aligned in the area the input 55 of the second guide element 15 to the guide of the first guide element 13 so that the gripper belt 1 in the area between the first guide element 13 and the input 55 of the second guide element 15 is not rotated becomes.
  • the guide elements are direct on the side frame 7 attached.
  • the second guide 15 and / or one or more parts of the third guide means 35 to be exchanged for others that have a changed twist cause.
  • the rotation of the gripper belt 1 can not run back to the drive wheel 9, so that Gripper belt 1 in a tangential plane to the drive wheel 9 is performed without it being necessary in the area of the first Guide element 13 and the underside of the gripper belt 1 respectively.
  • the guide means are only for the gripper belt 1 above has been explained, which carries a donor gripper 3.
  • the slave gripper 4 receiving gripper belt 2 between its Drive wheel 10 and the shed 23 are provided this Twist hook band 2.
  • the gripper belt 1 and the gripper belt 2 are different Angles are turned into different positions, especially depending on the shape and geometry of the Gripper 3 and / or the gripper 4.
  • this angle can be used for both gripper belts 1 and 2 can be chosen the same.
  • the second guide elements 15, 16, each of the shed are assigned as close as possible to the reed 18 arranged when weaving fabrics with a width that is smaller than the maximum weaving width.
  • the distance between the first guide element 13 and the second guide element 15 in the embodiment according to FIG. 2 to 5 larger, so that the twist of the gripper belt over a larger route takes place.
  • the embodiments according to Fig. 5 to 17 is the route on which the gripper belt 1 twisted, not changed, even if the distance between the first guide element 13 and the second guide element 15 is enlarged.
  • the guide means according to the invention can with gripper belts 1, 2 can be used with any cross-section, of course, their guides adapted to the cross section become.
  • Gripper belts with a rectangular cross-section can be used with any ratio between height and width, Gripper belts with a trapezoidal cross section or gripper belts with a U-shaped cross section or gripper belts with a Longitudinal groove on the top or the bottom, for example can be used according to EP-B 275 479. All of these Gripper belts can be placed between the drive wheels 9, 10 and the shed 23.
  • the gripper belts 1, 2 are preferably made of a laminated plastic with inlays from fabrics or carbon fibers or the like. manufactured.
  • the invention is not limited to rapier weaving machines, in which a weft thread by means of gripper 3 and slave gripper 4 and correspondingly two gripper belts 1, 2 in one Shed 23 is entered. It can also be used on weaving machines can be used in which a single gripper a Weft thread enters a shed 23, which then only a rapier needed.
  • a gripper can be a donor gripper 3, which picks up the weft on the entry side and bring to the opposite side while he is in that Web is moved into it. It can also take the form of a gripper 4 be formed of a weft on the entry side picks up and brings to the opposite side, while moving out of the shed 23.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Claims (11)

  1. Machine à tisser à pinces avec au moins une bande à pinces (1, 2) recevant une pince (3, 4) qui, au moyen d'une roue d'entraínement (9, 10) peut être rentrée dans une foule (23) et sortie de celle-ci et qui est guidée à l'extérieur de la foule par des moyens de guidage (13, 15) qui maintiennent la bande à pinces (1, 2) en contact avec la roue d'entraínement (9, 10) et l'orientent relativement à la foule (23), caractérisée en ce que les moyens de guidage présentent des guidages, tournés les uns par rapport à les autres, qui sont orientés au voisinage de la roue d'entraínement (9, 10) sensiblement tangentiellement à la roue d'entraínement.
  2. Machine à tisser à pinces selon la revendication 1, caractérisée en ce que sont prévus deux moyens de guidage ou plus avec des guidages tournés selon des degrés différents qui sont montés d'une manière échangeable sur la machine à tisser à pinces.
  3. Machine à tisser à pinces selon la revendication 1 ou 2, caractérisée en ce qu'il est disposé au voisinage de la roue d'entraínement (9, 10) un premier élément de guidage (13) et, à une distance du premier élément de guidage, un deuxième élément de guidage (15) à côté de la foule (23) dont la sortie est tournée vers un plan tangentiel à la roue d'entraínement (9, 10).
  4. Machine à tisser à pinces selon la revendication 3, caractérisée en ce que le premier élément de guidage (13) et le deuxième élément de guidage (15) forment des guidages sensiblement rectilignes pour la bande à pinces (1, 2) qui sont tournés l'un par rapport à l'autre.
  5. Machine à tisser à pinces selon la revendication 3 ou 4, caractérisée en ce qu'il est disposé entre le premier élément de guidage (13) et le deuxième élément de guidage(15) un troisième élément de guidage (35) en une ou plusieurs parties, tournant la bande à pinces (1, 2).
  6. Machine à tisser à pinces selon la revendication 5, caractérisée en ce que l'entrée du troisième élément de guidage (34) est alignée avec la sortie du premier élément de guidage (13).
  7. Machine à tisser à pinces selon l'une des revendications 4 à 6, caractérisée en ce que le troisième élément de guidage (35) est constitué de deux ressorts à lames (42, 43) qui sont tournés autour d'un axe longitudinal (28) s'étendant dans la direction de déplacement de la bande à pinces et qui guident la bande à pinces (1, 2) entre eux.
  8. Machine à tisser à pinces selon l'une des revendications 1 à 7, caractérisée en ce qu'il est disposé entre un premier élément de guidage (13) et un deuxième élément de guidage (15) un troisième élément de guidage (35) constitué de plusieurs parties (48 à 51) qui se suivent à une distance, dont les guidages (44 à 47) en partant du premier élément de guidage (13), sont tournés selon des angles croissant graduellement.
  9. Machine à tisser à pinces selon l'une des revendications 1 à 8, caractérisée en ce qu'il est prévu un deuxième élément de guidage (15) avec un guidage (57) tourné sur lui-même dont l'entrée (55) est sensiblement alignée avec la sortie d'un premier élément de guidage (13).
  10. Machine à tisser à pinces selon l'une des revendications 1 à 9, caractérisée en ce que le deuxième élément de guidage (15) forme avec le troisième élément de guidage (35)en une ou plusieurs parties et/ou avec le premier élément de guidage (13) un groupe d'éléments échangeable.
  11. Machine à tisser à pinces selon l'une des revendications 1 à 10, caractérisée en ce que sont prévues une bande à pinces (1) avec une pince de transmission (3) et une bande à pinces (2) avec une pince de réception (4) qui sont guidées chacune sur des côtés opposés de la foule (23) par des moyens de guidage qui font tourner la bande à pinces associée (1, 2) selon des angles identiques ou différents.
EP98924228A 1997-05-07 1998-04-28 Machine a tisser a lances Expired - Lifetime EP0980448B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE9700405A BE1011147A3 (nl) 1997-05-07 1997-05-07 Grijperweefmachine voorzien voor geleidingsmiddelen.
BE9700405 1997-05-07
PCT/EP1998/002493 WO1998050614A1 (fr) 1997-05-07 1998-04-28 Machine a tisser a lances

Publications (2)

Publication Number Publication Date
EP0980448A1 EP0980448A1 (fr) 2000-02-23
EP0980448B1 true EP0980448B1 (fr) 2002-06-19

Family

ID=3890506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98924228A Expired - Lifetime EP0980448B1 (fr) 1997-05-07 1998-04-28 Machine a tisser a lances

Country Status (5)

Country Link
US (1) US6161597A (fr)
EP (1) EP0980448B1 (fr)
BE (1) BE1011147A3 (fr)
DE (1) DE59804524D1 (fr)
WO (1) WO1998050614A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1014950A3 (nl) * 2001-08-29 2004-07-06 Wiele Michel Van De Nv Inrichting voor het aandrijven en geleiden van een grijper van een weefmachine.
BE1016298A4 (nl) * 2004-11-04 2006-07-04 Wiele Michel Van De Nv Aandrijftandwiel voor het aandrijven van een grijperstang in een weefmachine.
BE1028436B1 (nl) * 2020-06-25 2022-01-31 Vandewiele Nv Geleidingsinrichting in een grijperweefmachine, grijperweefmachine en werkwijze voor het omvormen van een grijperweefmachine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1198246B (it) * 1986-12-23 1988-12-21 Vamatex Spa Mezzi per guidare il moto di una coppia di pinze portatrama all'interno del passo di telai di tessitura
BE1001345A3 (nl) * 1988-01-07 1989-10-03 Picanol Nv Inrichting voor het uitlijnen van de lansgeleidingen bij grijperweefmachines, en werkwijze voor het uitlijnen die deze inrichting toepast.
US5179979A (en) * 1990-07-16 1993-01-19 Sulzer Brothers Limited Rapier loom with inclined tape guide
BE1007003A3 (nl) * 1993-04-15 1995-02-14 Picanol Nv Weefmachine voorzien van een lans en geleidingsmiddelen.

Also Published As

Publication number Publication date
WO1998050614A1 (fr) 1998-11-12
BE1011147A3 (nl) 1999-05-04
US6161597A (en) 2000-12-19
DE59804524D1 (de) 2002-07-25
EP0980448A1 (fr) 2000-02-23

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