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EP0057237A1 - Procede de production d'un tissus cylindrique a armature gaze et metier a tisser circulaire de mise en oeuvre de ce procede - Google Patents

Procede de production d'un tissus cylindrique a armature gaze et metier a tisser circulaire de mise en oeuvre de ce procede Download PDF

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Publication number
EP0057237A1
EP0057237A1 EP81902245A EP81902245A EP0057237A1 EP 0057237 A1 EP0057237 A1 EP 0057237A1 EP 81902245 A EP81902245 A EP 81902245A EP 81902245 A EP81902245 A EP 81902245A EP 0057237 A1 EP0057237 A1 EP 0057237A1
Authority
EP
European Patent Office
Prior art keywords
heald
standard
warp
leno
skeleton
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Withdrawn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
EP81902245A
Other languages
German (de)
English (en)
Other versions
EP0057237A4 (fr
Inventor
Soichi Torii
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.)
Torii Winding Machine Co Ltd
Original Assignee
Torii Winding Machine Co Ltd
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 Torii Winding Machine Co Ltd filed Critical Torii Winding Machine Co Ltd
Publication of EP0057237A1 publication Critical patent/EP0057237A1/fr
Publication of EP0057237A4 publication Critical patent/EP0057237A4/fr
Withdrawn legal-status Critical Current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
    • D03C7/00—Leno or similar shedding mechanisms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D37/00—Circular looms

Definitions

  • the present invention relates to a method for manufacturing a leno weave tubular fabric in a circular loom and a circular loom for weaving a leno weave tubular fabric.
  • Circular looms for weaving a tubular fabric have been known, and for example, the circular looms developed by the present inventor (see U.S. Patents No. 3,871,413 and No. 3,961,648), and the circular loom manufactured and sold by the British company, Fairbairn-Lawson Machinery, Ltd., are typical.
  • a set composed of an inner heald frame and an outer heald frame in the circular array is moved up and down by a cylindrical cam mechanism which rotates in synchronism with the advance of the shuttle, and the individual sets are successively opened.
  • a set of heald frames forming a shed in a shedding mechanism consists only of an inner heald frame and an outer heald frame. Therefore, with the conventional circular loom, only fabrics with a plain weave could be obtained; other woven fabrics with different weaves could not be obtained.
  • Tubular fabrics woven in such a circular loom utilizing tapes of synthetic resins, such as polypropylene and polyethylene resins, or synthetic resin strands, such as multifilament yarns or cords of synthetic resins, as warps and wefts, have been widely used for bags for transportation and storage of various materials and shopping bags, because these bags are strong and light in weight.
  • tubular fabrics woven in a conventional circular loom have a plain weave and are woven in such a manner that yarns are closedly located to each other, and accordingly, they have a disadvantage in that the air permeability is inferior.
  • a bag is not suitable for the storage of vegetables, such as onions or potatos.
  • the weave density is reduced by decreasing the number of warps or wefts in order to enhance the air permeability, the yarns may easily become displaced, especially when synthetic tapes are used as warps and wefts, and then, there is the disadvantage of excessively large openings being formed in the tubular fabric.
  • Leno weave is known as a weave by which good permeability can be obtained and by which the displacement of yarns can be prevented.
  • crossing parts are formed between the wefts, and therefore, the distance between the yarns can be enlarged, while the displacement of yarns do not occur.
  • healds are usually utilized in order to weave a woven fabric with leno weave. More specifically, there are two healds for a standard warp and a leno warp, and two doup healds consisting of a standard heald and a skeleton heald.
  • a shedding mechanism of a conventional circular loom moves heald frames up and down by means of a cylindrical cam mechanism, it is difficult to employ three or more heald frames to constitute a set of frames. If it is attempted to design a shedding mechanism to be capable of moving three or more heald frames up and down, the structure of such a shedding mechanism will become very complicated, and the weaving speed will be decreased, and accordingly, such a loom will be unpractical.
  • An object of the present invention is to provide a tubular fabric which has good air permeability and which is free from substantial displacement of constituent yarns.
  • Another object of the present invention is to provide a method for manufacturing a leno weave tubular fabric, using a shedding mechanism consisting of a plurality of heald frames that are arrayed in two rows in a circular manner, the same as in a conventional manner, and of a circular cam mechanism for moving the heald frames up and down; and the present invention further relates to a circular loom for effecting the method.
  • the objects are achieved by a method for manufacturing a leno weave tubular fabric in a circular loom characterized in that a standard warp is kept in a substantially stationary condition without being subjected to a positive shedding motion, a leno warp is lifted on one side of the standard warp to form a shed, and at the next shedding, the leno warp is lifted on the opposite side of the standard warp to form a shed after the leno warp passes beneath the standard warp, and the shedding motion of the leno warp is repeated.
  • a circular loom for weaving a leno weave tubular fabric comprising a plurality of heald frames arranged in two rows along two concentric circles, each inner heald frame and corresponding outer heald frame forming a pair, the pair being constructed in such a manner that when one of the heald frames forming the pair is lifted or lowered, the other heald frame is lowered or lifted, characterized in that the heald frames forming the pair support standard healds for a leno warp, and a skeleton heald is incorporated with the pair of standard healds, the skeleton heald being provided with an eye for guiding the leno warp, and a yarn passage in the weaving zone is restricted by: a yarn guide arranged along a circle outside of the heald frames; a clearance formed between vertical rods arranged along a circle inside of the heald frames; and an inner guide gauge ring guiding the woven fabric.
  • Fig. 1 illustrates an embodiment of a circular loom according to the present invention.
  • a weaving zone 4 including a shed forming means and a filling means is mounted within a frame 9, and the shed forming means and the filling means are driven by an electric motor 5, disposed at the lower portion of the frame 9, through a first power transmission mechanism (not shown).
  • a means 8 for taking up the woven tubular fabric is disposed and is driven through a second power transmission mechanism (not shown).
  • the second power transmission mechanism is driven by the first power transmission mechanism through a driving transmission lever 11 so that the taking up means is driven in synchronism with the weaving zone.
  • Warps 3 in a number necessary for weaving a desirable tubular fabric 2, are fed to a pair of creels 6 disposed on both the sides of the weaving zone 4 symmetrically with each other with respect to the weaving zone 4 (only one creel, disposed on the right side, is illustrated in Fig. 1), from a plurality of packages 6a rotatably mounted for feeding warps, and the warps 3 are fed to the weaving zone 4 through warp feed-out means 7.
  • the tubular fabric 2 formed by the weaving operation in the weaving zone 4 of the circular loom 1 is upwardly taken out by the woven fabric taking up means 8 and guided to a winding means (not shown) in a direction indicated by an arrow.
  • a plurality of heald frames are arrayed in two rows along two concentric circles, each inner heald frame 25 (Fig. 2) of which is paired with a corresponding outer heald frame 26.
  • the pair is constructed in such a manner that when one of heald frames forming the pair is lifted or lowered, the other heald frame is correspondingly lowered or lifted.
  • a plurality of pairs of heald frames perform a wave-like shedding motion, and a plurality of shuttles 13 provided with warp yarn guides 14 pass through the sheds.
  • a shedding motion mechanism for vertically moving the heald frames will now be briefly explained.
  • a plurality of guide rods 18 are disposed between a lower shuttle guide rail 16 and a machine frame 17, and each guide rod 18 has a sliding piece 19 slidably mounted thereon.
  • the sliding piece 19 has two rollers 21 and 22 which engage with a cam projection 24 formed on the side surface of a cam disc 23.
  • the cam projection 24 is formed in a wave shape as illustrated at the lower portion of Fig. 2. As the cam disc 23 rotates while the loom is operated, the sliding piece 19 is vertically moved along the guide rod 18.
  • the inner heald frame 25 and the outer heald frame 26 have supporting sheets 27 and 28 attached to the lower end thereof, respectively, and the lower ends of the supporting sheets 27 and 28 are connected to an endless belt 29 by means of an appropriate securing means.
  • the endless belt 29 is wrapped around two guide pulleys 31 and 32 rotatably mounted on a bracket (not shown), and accordinlgy, it is movable in both directions, i.e., clockwise and counter clockwise directions.
  • the supporting sheet 27 attached to the inner heald frame 25 is secured to the sliding piece 19 by means of a pin 33. Accordingly, as the sliding piece 19 is vertically moved due to the rotation of the cam disc 23, the inner heald frame 25 and the outer heald frame 26 are also vertically moved. Fig.
  • FIG. 2 illustrates the locational relationship between the shuttles 13, the sliding pieces 19, and inner and outer heald frames 25 and 26.
  • dots (.) denote standard warps Y 1
  • dots encircled by small circles (Q) denote leno warps Y 2 .
  • the shedding motion mechanism of the present invention is similar to that disclosed in U.S. Patent No. 3,961,648, and therefore, further explanation thereof is omitted here.
  • the heald utilized in the present invention is not an ordinary heald, but a doup heald.
  • the inner and outer heald frames 25 and 26 have upper and lower bars 35 for supporting healds mounted at the upper and lower portions thereof, which bars support standard healds 37 and 38.
  • Each standard heald 37 or 38 is provided with at least one eye 37a or 38a, preferably two eyes 37a and 37b, or 38a and 38b.
  • the upper eye 37a or 38a of each standard heald 37 or 38 includes a portion downwardly inclined toward the opposite standard heald 38 or 37 as illustrated in Figs. 3, 5 and 7.
  • the inner and outer heald frames 25 and 26 also have a skeleton heald (i.e., a half heald) 39.
  • the top portion 41 of the skeleton heald 39 has an eye 41a for guiding the leno warp formed therein, and two leg portions 42 and 43 downwardly extending from the top portion pass through eyes 37a and 37b, and 38a and 38b of the inner and outer standard healds 37 and 38, respectively.
  • the lower ends of the leg portions 42 and 43 of the skeleton heald 39 are connected to one end of a spring 44, the other end of which is secured to the machine frame 17 (see Fig. 4), and accordingly, the skeleton heald 39 is always urged downwardly by means of the spring 44.
  • the standard warp Y 1 passes through a yarn guide 45 which is arranged outside of the heald frames 25 and 26 along a circle, and then, it passes through a space between the skeleton heald 39 and the inner or outer standard heald 37 or 38, and after it passes through a clearance formed between the adjacent vertical rods 47 which are disposed between the upper and lower shuttle guide rails 15 and 16, it extends to an inner guide gauge ring 46.
  • the warps Y 1 and Y 2 and the weft Y 3 are crossed to form a fabric F.
  • the leno warp Y 2 passes through the yarn guide 45, and then, it passes through the eye 41a of the skeleton heald 39, and thereafter, it passes through the clearance formed between the vertical rods, which clearance is the same as the clearance where the standard warp Y 1 passes through, and finally, it reaches the inner guide gauge ring 46.
  • the inner and outer heald frames 25 and 26 are moved upwardly and downwardby as the shuttles 13 travel, as shown in Fig. 2. Since the leg portions 42 and 43 of the skeleton heald 39 are inserted into the eyes 37a and 37b of the inner standard heald 37 and the eyes 38a and 38b of the outer standard heald 38, respectively, the skeleton heald alternately moves to the left side and to the right side of the standard warp Y 1 as the shuttle 13 travels, and when the skeleton heald is moved upwards, it forms an open shed and a crossed shed.
  • Fig. 5 illustrates a condition wherein an inner standard heald 37 is lifted and the outer standard heald 38 is lowered.
  • the eye 37a of the inner standard heald 37 engages with the top portion 41 of the skeleton heald 39, and accordingly the skeleton heald 39 is lifted by means of the eye 37a of the standard heald 37 against the spring 44.
  • the eye 37a of the inner standard heald 37 is moved upwardly beyond the shuttle 13, and the leno warp Y 2 is lifted beyond the shuttle 13 by means of the eye 41a formed in the top portion of the skeleton heald 39.
  • the eye 38a of the outer standard heald 38 is lowered beyond the shuttle 13.
  • the standard warp Y 1 passes through a gap between the leg portion 43 of the skeleton heald 39 and the standard heald 38 at a position above the eye 38a of the standard heald 38, and the standard warp Y l lies on a line connecting the yarn guide 45 and the inner guide gauge ring 46.
  • the leno warp Y 2 is introduced to the upper side of the shuttle 13 by means of the eye 41a formed in the skeleton heald 39
  • the standard warp Y 1 is introduced to the lower side of the shuttle 13 by means of the warp guide 14.
  • the standard warp can be located below the center of the shuttle 13, and accordingly, it is preferable, from a practical point of view, because such a warp can smoothly be introduced to the lower side of the shuttle 13 by means of the warp guide 14 mounted on the shuttle 13.
  • the standard heald 38 is lifted.
  • the spring 44 serves to ensure the top portion 41 of the skeleton heald 39 to engage with the eye 37a of the standard heald 37, and the skeleton heald 39 is lowered following the movement of the eye 37a formed in the standard heald 37.
  • the leno warp Y 2 is lowered by means of the eye 41a of the skeleton heald 39.
  • the eye 38a of the standard heald 38 moves upwardly along the leg portion 43 of the skeleton heald 39 and engages with the standard warp Y 1 from below.
  • the standard warp Y is raised along the leg portion 43 of the skeleton heald 39 by means of the inclined portion of the eye 38a formed in the standard heald 38.
  • the eye 38a formed in the standard heald 38 engages with the top portion 41 of the skeleton heald 39, and the standard warp Y 1 is raised onto the top portion 41 of the skeleton heald 39. Thereafter, the skeleton heald 39 is lifted by means of the eye 38a formed in the standard heald 38, and contrary to this, the eye 37a formed in the standard heald 37 is lowered along the leg portion 42 of the skeleton heald 39. At this time, the standard warp Y is guided by the eye 38a formed in the standard heald 38 so as to pass over the top portion 41 of the skeleton heald 39, and the standard warp Y 1 is inserted into a gap between the skeleton heald 37 and the leg portion 42 of the skeleton heald 39.
  • the leno warp Y 2 is guided by the eye 41a of the skeleton heald 39 and passes beneath the standard warp Y 1 .
  • the positions of the leno warp Y 2 and the standard warp Y are exchanged with each other, and a crossing part is formed.
  • the leno warp Y 2 is raised upwardly by means of the eye 41a formed in the skeleton heald 39, and contrary to this, the standard warp Y 1 follows the movement of the eye 37a of the standard heald 37 and lowers along the leg 42 of the skeleton heald 39.
  • the eye 38a of the standard heald 38 is lifted above the shuttle 13, and the leno warp Y 2 is raised upwardly beyond the shuttle 13 by means of the eye 41a formed in the skeleton heald 39.
  • the eye 37a of the standard heald 37 is lowered beyond the shuttle 13, and the standard warp Y 1 lies on a line connecting the yarn guide 45 and the inner guide gauge ring 46.
  • the leno warp Y 2 is introduced to the upper side of the shuttle 13, and contrary to this, the standard warp Y 1 is introduced to the lower side of the shuttle 13.
  • the standard heald 38 lowers, and the standard heald 37 lifts. Accordingly, the positions of the leno warp Y 2 and the standard warp Y 1 are exchanged with each other, and they again become in a condition illustrated in Fig. 5.
  • Fig. 6 illustrates a relationship between the leno warp Y 2 , standard warp Y and the weft Y 3 withdrawn from the shuttle 13 which are illustrated in Fig. 5. Since the standard warp Y 1 is inserted into a gap between the leg portion 43 of the skeleton heald 39 and the standard heald 38, the leno warp Y 2 forming a shed is located above the standard warp Y 1 in Fig. 6 when it is seen in a direction perpendicular to the sheet on which Fig. 6 is illustrated.
  • Fig. 8 illustrates the relationship between the leno warp Y 2 , the standard warp Y 1 ' and the weft Y 3 withdrawn from the shuttle 13 which are illustrated in Fig. 7.
  • the leno warp Y 2 forming a shed in Fig. 8 is located below the standard warp Y 1 when it is seen in a direction perpendicular to the sheet on which Fig. 8 is illustrated, and the positions of the leno warp and standard warp Y 1 together forming a shed in Fig. 8 is reverse to those in Fig. 6.
  • a plurality of doup healds arranged at the outer periphery of the circular shuttle guides are successively and alternately moved upwardly and downwardly.
  • crossing parts of leno warps Y 2 with standard warps Y 1 can be formed between adjacent weft yarns. Consequently, a tubular fabric wherein the distance between the adjacent yarns is large can be produced, and the tubular fabric can be used to manufacture a bag which is suitable for the storage of onions, potatos and so on.

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

Abstract

Plusieurs batis de lames de harnais ont une disposition circulaire en deux rangees, chaque bati de lame de harnais d'une rangee interieure est verrouille avec un bati d'une rangee exterieure et forme avec ce dernier une paire. Une paire de batis de lames de harnais supportent des lames de harnais standard (37,38) pour une chaine de gaze (Y2) une lame de harnais d'ossature (39) est associee a la paire de lames de harnais standard (37, 38) et est pourvue d'un oeil (41a) pour guider la chaine de gaze (Y2). Une chaine de fond (Y1) est maintenue sensiblement dans un etat immobile, la chaine de gaze (Y2) est soulevee et une ouverture est amenagee d'un cote de la chaine de fond (Y1), puis elle passe sous la chaine de fond (Y1) a l'ouverture suivante, puis elle est soulevee et ouverte, et ainsi un tissu cylindrique a armure gaze est tisse.
EP19810902245 1980-08-01 1981-07-30 Procede de production d'un tissus cylindrique a armature gaze et metier a tisser circulaire de mise en oeuvre de ce procede. Withdrawn EP0057237A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10650780A JPS5735028A (en) 1980-08-01 1980-08-01 Method and circular loom for weaving entangled cylindrical cloth
JP106507/80 1980-08-01

Publications (2)

Publication Number Publication Date
EP0057237A1 true EP0057237A1 (fr) 1982-08-11
EP0057237A4 EP0057237A4 (fr) 1982-11-25

Family

ID=14435335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810902245 Withdrawn EP0057237A4 (fr) 1980-08-01 1981-07-30 Procede de production d'un tissus cylindrique a armature gaze et metier a tisser circulaire de mise en oeuvre de ce procede.

Country Status (7)

Country Link
EP (1) EP0057237A4 (fr)
JP (1) JPS5735028A (fr)
KR (1) KR840001904B1 (fr)
IT (1) IT1137763B (fr)
PH (1) PH19067A (fr)
PT (1) PT73451B (fr)
WO (1) WO1982000480A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT387993B (de) * 1986-09-01 1989-04-10 Chemiefaser Lenzing Ag Fachbildungseinrichtung fuer dreherbindung
FR2685358A1 (fr) * 1991-12-19 1993-06-25 Commissariat Energie Atomique Tissu tridimensionnel, procede de fabrication de ce tissu et dispositifs pour la mise en óoeuvre de ce procede.
WO1999023288A1 (fr) * 1997-11-03 1999-05-14 Klöcker-Entwicklungs-Gmbh Dispositif de regulation de la tension de fils de tour et de fils fixes guides a travers un dispositif de lisiere a point de gaze
EP1967623A2 (fr) 2007-03-07 2008-09-10 STARLINGER & CO. GESELLSCHAFT MBH Métier à tisser circulaire
CN106081716A (zh) * 2016-07-29 2016-11-09 天津市旭辉恒远塑料包装股份有限公司 编织布机用收卷机
CN112410995A (zh) * 2020-11-10 2021-02-26 邵阳市昌兴实业有限公司 一种纱线防缠绕装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100893950B1 (ko) * 2007-10-01 2009-04-22 (주)유성특수산업 레노 조직용 제직장치
ATE483047T1 (de) * 2007-11-21 2010-10-15 Groz Beckert Kg Vorrichtung zum herstellen von drehergeweben
KR101067238B1 (ko) * 2008-12-18 2011-09-26 박상구 와이어 종광의 제조방법 및 그 와이어 종광
EP4065758B1 (fr) * 2019-11-26 2025-06-25 Lohia Corp Limited Métier à tisser circulaire pour fabriquer un tissu de gaze et son procédé de fabrication

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4416384Y1 (fr) * 1966-11-29 1969-07-15
JPS5547139B2 (fr) * 1972-12-26 1980-11-28
JPS5063271A (fr) * 1973-10-11 1975-05-29

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO8200480A1 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT387993B (de) * 1986-09-01 1989-04-10 Chemiefaser Lenzing Ag Fachbildungseinrichtung fuer dreherbindung
FR2685358A1 (fr) * 1991-12-19 1993-06-25 Commissariat Energie Atomique Tissu tridimensionnel, procede de fabrication de ce tissu et dispositifs pour la mise en óoeuvre de ce procede.
WO1999023288A1 (fr) * 1997-11-03 1999-05-14 Klöcker-Entwicklungs-Gmbh Dispositif de regulation de la tension de fils de tour et de fils fixes guides a travers un dispositif de lisiere a point de gaze
US6244304B1 (en) 1997-11-03 2001-06-12 Klocker-Entwicklungs Gmbh Doup end tension regulating device for a selvedge former
EP1967623A2 (fr) 2007-03-07 2008-09-10 STARLINGER & CO. GESELLSCHAFT MBH Métier à tisser circulaire
CN106081716A (zh) * 2016-07-29 2016-11-09 天津市旭辉恒远塑料包装股份有限公司 编织布机用收卷机
CN112410995A (zh) * 2020-11-10 2021-02-26 邵阳市昌兴实业有限公司 一种纱线防缠绕装置
CN112410995B (zh) * 2020-11-10 2022-03-22 邵阳市昌兴实业有限公司 一种纱线防缠绕装置

Also Published As

Publication number Publication date
KR830006499A (ko) 1983-09-24
WO1982000480A1 (fr) 1982-02-18
PT73451B (pt) 1982-10-21
PH19067A (en) 1985-12-17
IT1137763B (it) 1986-09-10
EP0057237A4 (fr) 1982-11-25
IT8123282A0 (it) 1981-07-31
KR840001904B1 (ko) 1984-10-24
JPS5735028A (en) 1982-02-25
PT73451A (pt) 1981-08-01

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Inventor name: TORII, SOICHI