EP0059483B1 - Dispositif de formation de la foule pour le tissage circulaire de tissus à armure complexe et application de ce dispositif - Google Patents

Dispositif de formation de la foule pour le tissage circulaire de tissus à armure complexe et application de ce dispositif Download PDF

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Publication number
EP0059483B1
EP0059483B1 EP82101669A EP82101669A EP0059483B1 EP 0059483 B1 EP0059483 B1 EP 0059483B1 EP 82101669 A EP82101669 A EP 82101669A EP 82101669 A EP82101669 A EP 82101669A EP 0059483 B1 EP0059483 B1 EP 0059483B1
Authority
EP
European Patent Office
Prior art keywords
divider
wire
fabric
weaving
warp
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
Application number
EP82101669A
Other languages
German (de)
English (en)
Other versions
EP0059483A1 (fr
Inventor
Georg Dipl.-Ing. Borel
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.)
Herman Wangner GmbH and Co KG
Original Assignee
Herman Wangner GmbH and Co KG
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 Herman Wangner GmbH and Co KG filed Critical Herman Wangner GmbH and Co KG
Priority to AT82101669T priority Critical patent/ATE15084T1/de
Publication of EP0059483A1 publication Critical patent/EP0059483A1/fr
Application granted granted Critical
Publication of EP0059483B1 publication Critical patent/EP0059483B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for
    • 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
    • D03D49/12—Controlling warp tension by means other than let-off mechanisms
    • D03D49/14—Compensating for tension differences during shedding

Definitions

  • the invention relates to a shedding device for circular weaving of high-yielding fabrics according to the preamble of claim 1, as is the general state of the art.
  • the number of shafts of a weave is limited by the number of frames or harness frames.
  • the number of harness frames cannot be increased arbitrarily, since the stroke of each additional harness frame would be extraordinarily large for a given angle of the compartment opening.
  • the invention is therefore based on the object of creating a shedding device for circular weaving of high-weave fabrics.
  • the invention further relates to the use of this shedding device for circular weaving of high-weave fabrics, as specified in claim 3.
  • the advantages that can be achieved by the invention are, in particular, that only as many harness frames are required as if the fabric were woven open, namely the number of layers times the number of warp threads of a layer per weave repeat. Since warp threads of the lower and the upper fabric half are drawn in in each dish frame, the same dish frames serve for weaving both the lower and the upper fabric half.
  • the application of the invention is not limited to double-layer or multi-layer sieves, but also relates to single-layer round-woven fabrics.
  • the shed forming device has 14 harness frames, which have two strands per binding repeat of the chain, namely one strand for each binding repeat of the upper and lower sieve halves 25 and 26.
  • the harness frames therefore contain twice the number of strands 24 as usual. Instead, however, each strand can also have two strand eyes or two warp threads can be passed through one strand eye.
  • a thread divider 20 is arranged, which in the simplest case consists of a rod that extends over the entire width of the weaving machine.
  • the thread divider 20 is displaceable between an upper and a lower position and is in its upper and lower position at the edge of the opening angle of the compartment. With each change of subject it is moved from one position to the other position, e.g. B. by pneumatic, hydraulic, other mechanical or electromagnetic devices that essentially correspond to the devices that are used to raise and lower the harness frame 1 to 14. As can be seen in Fig.
  • the warp threads shown in the drawing by a continuous line of the upper half of the sieve 25 are drawn in such that they run over the thread splitter 20 and the warp threads of the lower half of the sieve 26 shown by a broken line are drawn in such that they run under the thread divider 20.
  • the thread divider 20 In its low position, the thread divider 20 therefore presses down all the warp threads of the lower half of the sieve 26, including those warp threads that are raised by a Dish frame run. Conversely raises the yarn divider 20 in its high position, all warp threads of the upper Siebbli l RTD 25, and even those that pass through a straight lowered heald frames.
  • the 28 warp threads of the selected embodiment are shown in section as small circles, the warp threads of the upper two lines are numbered from 1 to 14 and belong to a weave repeat of the upper half of the screen 25, while the warp threads of the lower two lines are numbered 1a to 14a are numbered and belong to a weave repeat of the lower half of the sieve 26.
  • the warp threads of a row each belong to a specific position of the fabric. If a weft thread 28 is to be pulled through as shown in FIG. 2, the corresponding harness frames are raised or lowered as shown in FIG. 3, with the warp wires 1 and 1a of FIG. 1 through the harness frame 1 of FIG. 3 run, the warp wires 2 and 2a of FIG.
  • the weft wire 28 is now forces back to the upper Siebnos l entered the 25th
  • the weft wire 28 should run as shown in FIG. 6, for which purpose the position of the harness frame shown in FIG. 7 is necessary.
  • the thread divider 20 is again in its deep position and presses all the warp threads of the lower half of the sieve 26 downwards.
  • the thread divider 20 is thus in its deep position when the weft thread is inserted into the upper fabric half 25 and is in its high position when the weft thread is inserted into the lower fabric half 26.
  • Each harness frame is equipped with twice the number of strands - one half of the strands for the upper fabric half 25, the other half of the strands for the lower fabric half 26.
  • Fig. 8 shows the passage of a weft wire 28 when weaving a three-layer fabric. Only the warp wires 2, 3, 4 and 7 are pulled up over the corresponding harness frames and form the upper side of the shed. The remaining warp wires form the lower side of the compartment opening 22 when the weft wire 28 is pulled through.
  • the position of all the harness frames is shown in FIG. 9.
  • the thread divider 20 presses all the warp wires that are only required when weaving the lower fabric half 26 downward outside the compartment opening 22. In this way, the warp wires 2a, 3a, 4a and 7a of the above harness frames are displaced from the compartment opening 22.
  • the thread divider 20 is shown with a round cross section. However, it expediently has an oval cross section, the long axis being vertical, in order to give the thread divider 20 stability in the vertical direction and to prevent bending as far as possible.
  • the thread splitter 20 is preferably mounted within a stable support frame, as shown in Fig. 10.
  • the carrier frame surrounds the shed and the thread divider 20 is held in the carrier frame by steel wires or the like.
  • the carrier frame moves with a thread divider up and down with each change of subject.
  • FIG 11 shows the entire course of the warp threads from the warping roller via the shedding device, the weaving reed 27 (weaving point) to the fabric tree.
  • the path described by the individual warp threads is of different lengths, the path being the longest of those warp threads that run through the deep harness frames when the thread divider 20 is raised. Since the thread divider 20 assumes the opposite position each time the shed is changed, it can happen that other warp wires describe the longest path after the next shed change. The different lengths of the paths described by the individual warp threads can lead to differences in tension in the individual warp threads.
  • the compensator 30 shown in FIGS. 12 to 14 which largely corresponds in construction to the thread divider 20, but is arranged behind the last harness frame, ie between this harness frame and the warping roller.
  • the warp wires are drawn in so that the Warp wires of the lower half of the screen 26, which run under the thread divider 20, are also drawn in under the compensator 30.
  • the warp threads of the upper half of the sieve 25, which run over the thread divider 20, are also guided over the compensator 30.
  • the compensator 30 is moved in opposition to the thread divider 20, ie when the thread divider 20 is in its high position, the compensator 30 is in its low position and vice versa.
  • the warp threads can also be guided in such a way that the warp threads that run over the thread splitter 20 are passed under the compensator 30 and vice versa.
  • the compensator 30 is then raised and lowered not in push-pull, but in time with the thread divider 20.

Landscapes

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

Claims (3)

1. Dispositif de formation de la foule, pour le tissage circulaire de tissus à armure complexe, comportant pour commander les lames de tissage un certain nombre de cadres, qui peuvent se soulever et s'abaisser alternativement pour réaliser une armure voulue; caractérisé en ce qu'il comporte un séparateur de fils (20), constitué par une tige qui s'étend sur toute la largeur de tissage, entre le premier cadre (1) de commande des lames et le peigne de tissage (27); et en ce qu'il comporte un système pour soulever ou abaisser la tige de séparation des fils (20), de telle manière que, dans ses positions extrêmes vers le haut et vers le bas, la tige de séparation des fils (20) se trouve à l'extérieur de la foule (22) ou du moins en bordure de celle-ci.
2. Dispositif conforme à la revendication 1, caractérisé en ce qu'il comporte un compensateur de tension (30), constitué par une tige qui s'étend sur toute la largeur de tissage, et un système pour manoeuvrer le compensateur de tension (30), en l'abaissant et en le soulevant en synchronisme avec la tige de séparation des fils, soit en même temps que la tige, soit à contre-temps.
3. Utilisation du dispositif conforme à l'une des revendications 1 ou 2, pour le tissage circulaire de tissus à armure complexe, caractérisée en ce que chacun des cadres de commande des lames (1-14), dans le rapport d'armure, porte à la fois un fil de chaîne de la moitié supérieure (25) de l'armure et un fil de chaîne de la moitié inférieure (26); tous les fils de chaîne de la moitié supérieure (25) de l'armure passant alors au-dessus de la tige de séparation des fils (20), et tous les fils de chaîne de la moitié inférieure (26) de l'armure passant en-dessous de la tige de séparation des fils (20), et en ce que, pour effectuer le tissage de l'une des moitiés du tissu, on repousse à chaque fois les fils de chaîne de l'autre moitié du tissu au moyen de la tige de séparation des fils (20).
EP82101669A 1981-03-04 1982-03-04 Dispositif de formation de la foule pour le tissage circulaire de tissus à armure complexe et application de ce dispositif Expired EP0059483B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82101669T ATE15084T1 (de) 1981-03-04 1982-03-04 Fachbildungsvorrichtung zum rundweben hochschaeftiger gewebe und verwendung der fachbildungsvorrichtung hierzu.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3108189A DE3108189C2 (de) 1981-03-04 1981-03-04 Fachbildungsvorrichtung zum Rundweben hochschäftiger Gewebe und Verwendung der Fachbildungsvorrichtung hierzu
DE3108189 1981-03-04

Publications (2)

Publication Number Publication Date
EP0059483A1 EP0059483A1 (fr) 1982-09-08
EP0059483B1 true EP0059483B1 (fr) 1985-08-21

Family

ID=6126323

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101669A Expired EP0059483B1 (fr) 1981-03-04 1982-03-04 Dispositif de formation de la foule pour le tissage circulaire de tissus à armure complexe et application de ce dispositif

Country Status (4)

Country Link
US (1) US4463782A (fr)
EP (1) EP0059483B1 (fr)
AT (1) ATE15084T1 (fr)
DE (1) DE3108189C2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497060A (en) * 1982-12-08 1985-01-29 Lockheed Electronics Co., Inc. Self-clocking binary receiver
FR2691174B1 (fr) * 1992-05-15 1994-07-29 Aerospatiale Procede de tissage d'armature epaisse a couches multiples indelaminables pour materiaux composites et machine a tisser pour sa mise en óoeuvre.
ES2352227T3 (es) * 2007-11-21 2011-02-16 Groz-Beckert Kg Dispositivos para fabricar tejidos de vuelta.
USD753902S1 (en) * 2014-03-12 2016-04-19 Alexander Niles Shirt with medical port accessibility
CN106854792B (zh) * 2016-12-23 2019-02-26 东华大学 基于立体织机织物组织对经纱张力进行补偿的装置及方法
DE202018105722U1 (de) 2018-10-05 2018-11-09 Westdeutscher Drahtseil-Verkauf Dolezych Gmbh & Co. Kg Grummet
DE202018105723U1 (de) 2018-10-05 2018-11-09 Westdeutscher Drahtseil-Verkauf Dolezych Gmbh & Co. Kg Kette, insbesondere Schwerlastkette

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE187444C (fr) *
US763628A (en) * 1904-01-02 1904-06-28 Anker Petersen Warp-puller for looms.
US2125339A (en) * 1934-01-16 1938-08-02 Grimm Oskar Method for producing a fabric with close setting of the weft threads
US2173163A (en) * 1937-07-24 1939-09-19 Celanese Corp Shedding mechanism for circular looms
US2649864A (en) * 1951-04-24 1953-08-25 Jr Mayer Mayer Attachment for weaving high density fabrics
FR1086197A (fr) * 1953-11-03 1955-02-10 Lyon Nouveautes Textiles Procédé de fabrication de tissu moiré
FR1199448A (fr) * 1957-02-26 1959-12-14 Procédé et dispositif pour le tissage de produits textiles
DE1262169B (de) * 1962-09-22 1968-02-29 Julius Ernst Hecking Vorrichtung zum Konstanthalten der Kettenfadenspannung bei Webstuehlen
US3818951A (en) * 1970-11-27 1974-06-25 Secr Defence Loom
FR2314280A1 (fr) * 1975-06-11 1977-01-07 Alsacienne Constr Meca Perfectionnement aux metiers a tisser a deux foules superposees
US4174739A (en) * 1978-02-21 1979-11-20 Fenner America Ltd. Tubular fabric
JPS564740A (en) * 1979-06-21 1981-01-19 Souichi Torii Weaving method and circular weaving machine for bag fabric in circular weaving machine

Also Published As

Publication number Publication date
US4463782A (en) 1984-08-07
ATE15084T1 (de) 1985-09-15
DE3108189C2 (de) 1983-02-03
EP0059483A1 (fr) 1982-09-08
DE3108189A1 (de) 1982-11-11

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