EP1299586A1 - Device for creating a gauze fabric - Google Patents
Device for creating a gauze fabricInfo
- Publication number
- EP1299586A1 EP1299586A1 EP01949471A EP01949471A EP1299586A1 EP 1299586 A1 EP1299586 A1 EP 1299586A1 EP 01949471 A EP01949471 A EP 01949471A EP 01949471 A EP01949471 A EP 01949471A EP 1299586 A1 EP1299586 A1 EP 1299586A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- needles
- guide
- drive
- warp threads
- 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.)
- Granted
Links
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
- 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
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C7/00—Leno or similar shedding mechanisms
- D03C7/06—Mechanisms having eyed needles for moving warp threads from side to side of other warp threads
Definitions
- the invention relates to a device for forming a leno fabric with a plurality of juxtaposed needles, each with a guide eye for a warp thread and with a plurality of juxtaposed guide eyes for warp thread means, the warp threads relative to the stationary needles in the longitudinal direction of the needles and transversely thereto move.
- a shaft frame with two perforated rails which can be moved in opposite directions and which are suspended from leaf spring bars within a shaft frame serves as the element which can be moved parallel and transversely to the needles. These leaf springs are deflected during the transverse movements.
- the invention has for its object to provide a device of the type mentioned, in which high weaving speeds can be achieved without the risk of errors due to vibrations.
- both the needles and the means having the plurality of guide eyes do not vibrate either in the longitudinal direction or in the transverse direction, which could impair the weaving process.
- the needles are directed from top to bottom and serve to receive the warp threads of a warp thread group forming the underside of a shed.
- the drives in particular for the up and down movement of the movable element, can be arranged below, i.e. in a position in which the drives of heald frames are usually arranged. It is thus possible to drive the element by means of a drive similar to a drive for heald frames.
- a drive with its own drive motor is provided for executing the transverse movements. This enables the lathe bindings to be changed without much effort in the settings of a machine.
- the drive is designed as a preferably adjustable eccentric drive. This makes it possible to adjust the relative positions of the needles and the guide eyes of the element to one another.
- FIG. 1 shows a schematic representation of part of a weaving machine with a device according to the invention
- FIG. 2 is a partial view of the embodiment of FIG. 1,
- FIG. 3 is an enlarged view of elements of FIG. 1,
- FIG. 4 shows a schematic representation of an approximately horizontal section of FIG. 1,
- FIG. 5 is a partially sectioned side view of the device according to the invention in a first position
- FIG. 6 is a schematic view in the direction of arrow F6 of FIG. 5,
- Fig. 15 shows a modified embodiment of a drive for performing the transverse movement
- FIG. 16 is a view similar to FIG. 1 of a further embodiment.
- the device according to the invention shown in FIG. 1 as part of a weaving machine has a multiplicity of needles 1 which are arranged distributed uniformly over the width of the weaving machine.
- a group of needles 1 is mounted in a holder 2.
- the holders 2 are interchangeably fastened one behind the other on a carrier plate 3 which is fastened to a crossbar 5 by means of screws 4.
- the crossbeam 5 extends over the entire width of the weaving machine and is attached to the side frame of the weaving machine (not shown) by means of support brackets 6.
- the height position of the needles can be adjusted with the aid of adjusting screws 7, which are attached to an angled edge of the carrier plate 3 and are supported on the crossbeam 5. By means of these adjusting screws, the position can be changed in which the carrier plate 3 is fastened to the crossbar 5 by means of the screws 4.
- the weaving machine is provided with a further crossbeam 8, which likewise extends over the entire width of the weaving machine and which is fastened to the side frame of the weaving machine. Between the carrier plate 3 and the second crossbar 8 are at regular intervals from each other supports 9 to limit deformation of the support plate 3, and the crossbars 5 and 8.
- Holders 10 are fastened to the carrier plate 3 at regular intervals, for example with screws, not shown, which are screwed into the carrier plate 3 through the holders 2.
- the deflecting rod 11 is fastened to the carrier plate 3 in a defined axial position by means of a clamp holder 12.
- a strip-like element 13 is provided according to FIGS. 1 and 2, which has a plurality of guide eyes 14 for warp threads.
- This element 13 extends essentially over the entire width of the weaving machine.
- the distance between the guide eyes 14 of the element 13 corresponds to the distance between the needles 1, ie the guide eyes of the needles 1.
- the element 13 is fixed in a frame 15 which has two side parts 16, which over the element 13 and a larger one Cross-section having cross strut 17 are connected.
- the side parts 16 are guided in guides 18, so that the frame 15 can be moved back and forth in a plane up and down and laterally, which is directed essentially perpendicular to the warp threads.
- the frame 15 is connected in the region of the side parts 16 by means of a joint 19, connecting rods 20, 21 and a lever 22 to a drive (not shown) for moving the frame 15 up and down.
- the levers 22 on both sides are mounted in a known manner on cross members 23 of the weaving machine.
- the drive can correspond to a conventional drive for frames of heald frames.
- Such a drive contains, for example, a cam system that separates the frame 15 between two consecutive entries Can bring weft threads from the top position over the bottom position back to the top position.
- the cam system can be designed so that the upward movement and the downward movement are each effected via their own cams.
- the element 13 can be moved up and down in the direction S in a plane running essentially perpendicular to the warp threads and determined by the guides 18.
- the element 13 is moved back and forth parallel to the row of needles 1 by means of a drive, in the exemplary embodiment by means of an eccentric drive.
- a connecting rod 24 is articulated to the cross strut 17 of the frame 15, which is driven via an eccentric 25 by the drive shaft 27 of a controllable drive motor 28 in order to move the element 13 back and forth in the direction of the arrow L.
- the drive motor 28 is fastened to the crossbar 8 in the exemplary embodiment.
- the eccentric 25 is fastened by means of screws 26 on a disk 33 which is arranged on the drive shaft 27 in a rotationally fixed manner.
- the eccentric 25 When screws are loosened, the eccentric 25 can be moved in slots 29 of the disk 33 and fastened on the disk 33 in a predetermined radial position by tightening the screws 26.
- the connecting rod consists of two parts 24A and 24B, which are fastened by means of screws 30 and Slots 31 can be connected to each other in different axial positions, so that the length of the connecting rod 24 can be adjusted.
- the connecting rod 24 is connected to the cross strut 17 by means of a joint 32.
- the cross strut 17 is guided by means of a plurality of guides 34, 35 distributed over its length, which are attached to the supports 9 and which prevent the cross strut 17 from bending in the direction of the warp threads.
- the drive shaft 27 and the connecting rod 24 are almost in a horizontal plane 36 when the element is between its uppermost and its lowest position.
- the connecting rod then runs essentially parallel to the cross strut 17. In the lowest position of the element 13, the warp threads guided by it are below the needles 1 and therefore do not rest on the stationary needles 1.
- a warp 37 is guided by the guide eyes 14 of the element 13.
- the other warp thread family 38 runs over the deflecting rod 11 to the guide eyes 39 of the needles 1.
- the warp threads of the warp thread families 37, 38 are guided to the device according to the invention by a warp beam, not shown, for example via a spring-mounted match tree.
- Means for compensating for the changes in tension in the warp threads of the warp thread groups 37, 38 can optionally also be arranged between the match tree and the device according to the invention.
- one warp thread of the warp thread family 37 and one warp thread of the warp thread family 38 are guided between two teeth 40 of a reed 41. These warp threads, which are guided between two reed teeth 40, should together form a leno weave. This creates a leno fabric 42 when wefts 43 are inserted accordingly.
- the reed 41 is mounted on a sley 44.
- the warp thread groups 37 and 38 form a shed 45, the lower warp thread set 38 of the shed 45 being formed by the warp threads which are guided by the needles 1 arranged in a stationary manner.
- the upper warp thread sheet 37 is formed by the warp threads which are guided by the element 13.
- the element 13 is moved downward.
- the element 13 with the warp threads of the warp thread family 37 can be moved laterally in the direction of the needles 1 by means of the drive motor 28, as is shown in FIGS. 7 and 8.
- warp threads of the warp thread array 37 can be brought to the desired side of the needles 1 in the lowest position of the element 13 in order to obtain the corresponding leno binding.
- a leno fabric 42 in which the element 13 is moved laterally in one direction or the other during each entry and in which the element 13 performs an up and down movement between each entry, since in this case a well-bound leno fabric 42 is obtained.
- a leno fabric 42 is particularly suitable for use as a carpet back.
- This also has the advantage that the drive motor 28 can rotate in one direction at an almost constant speed. The speed is synchronized with the weaving machine speed at half the average speed. The speed of the drive motor 28 does not have to be absolutely synchronous with the continuously variable speed of the weaving machine. It only has to run synchronously with the weaving machine speed on average.
- the drive motor 28 must be driven in such a way that the warp threads of the warp thread family 37 guided by the element 13 are positioned on the desired side of the needles at the point in time at which the warp threads just pass the needles 1 during their upward movement.
- the element can practically be in any lateral position between the two times mentioned above. However, it is preferred that the element 13 is in a position between the two times mentioned above in which the warp threads do not rest against the needles 1, in order to prevent wear of the warp threads and the needles 1 due to the friction of the warp threads on the needles 1 to limit.
- This variable speed can be adjusted so that the element 13 is essentially in the lateral direction moved at a time when this element 13 is substantially in the lowest height position below the needles 1.
- the element which is movable transversely and parallel to the stationary needles 1 is divided into two elements 47 and 48.
- the element 47 is provided with guide slots 46 running parallel to the needles 1. It is moved back and forth across the needles 1 in the direction of arrow L by means of a drive motor 28 attached to the carrier plate 3 and an eccentric drive by means of a connecting rod.
- the warp threads running through the guide slots 46 are also guided in a transverse slot 49 of the element 48 which is guided in guides 18 by means of side parts and a cross strut 50 and is driven to move parallel to the needles 1 in the direction of the arrow S.
- the slot guides 46 and the slot 49 form guide eyes for the warp threads of the warp thread family 37, which are moved relative to the needles 1.
- the element 47 is guided with bars 51 in guides 52, which are attached to the carrier plate 3.
- FIG. 15 shows an embodiment which corresponds to the exemplary embodiment according to FIG. 1 with the exception of the drive for the transverse movement of the element 13.
- a controllable linear motor 53 is attached to the base plate of the guide 18 and drives an extendable piston 54 which is provided with a transversely directed pin 55.
- the pin 55 engages in a slot 56 in the direction of the stroke movement of a guide block 57 which is fastened to the side part 16 of the frame 15.
- the drive motor 53 driven to an appropriately set speed profile, the frame 15 can be moved laterally to the needles in such a way that friction between the warp threads and the needles 1 only occurs to a limited extent.
- the pin 55 slides in the slot 56.
- the up and down movement of the frame 15 can also be carried out with the aid of a separate motor, for example a linear motor. It is also possible to derive this movement from another shaft of the weaving machine, for example from the loading shaft.
- the deflecting rod 11 is held on the carrier plate 13 in a resilient manner.
- the clamping element 12 and the holder 10 are movably guided in guides running parallel to the needles 1 and suspended by means of springs 63 on a holding part 64 of the carrier plate 3. It is thus possible to limit changes in tension in the warp thread family 38.
- the connecting rod 20 is not articulated to the frame 15 by means of a swivel joint.
- the connecting rod 20 is resiliently deformable (bendable) so that a joint can be omitted. It is preferably provided that the connecting rod 20 has a defined bending point 61 in the form of a material weakening. The connecting rod 20 is then firmly connected to the frame 15 with a holder 62 in this embodiment.
- the deflecting rod 11 is attached to the frame 15 at the top.
- 11 individual thread guides are attached to the top of the frame instead of a deflecting rod.
- the element 13 or 47 is also driven by the main drive of the weaving machine.
- a drive consists, for example, of a cam driven by a shaft of the weaving machine, which is connected to the element 13 or 47 via connecting rods.
- the present invention has been illustrated using the example of an air jet weaving machine, its application is not restricted to this. It can also be used in conjunction with other weaving machines, for example rapier weaving machines, rapier shooters, water jet weaving machines, projectile weaving machines or other weaving machines.
- rapier weaving machines for example rapier weaving machines, rapier shooters, water jet weaving machines, projectile weaving machines or other weaving machines.
- the advantage here is that the device according to the invention can be easily retrofitted to practically any weaving machine.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Treatment Of Fiber Materials (AREA)
- Knitting Machines (AREA)
- Dowels (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE2000/0443A BE1013594A3 (en) | 2000-07-12 | 2000-07-12 | METHOD AND APPARATUS FOR FORMING A TISSUE leno in a weaving machine. |
BE200000443 | 2000-07-12 | ||
PCT/EP2001/007761 WO2002004723A1 (en) | 2000-07-12 | 2001-07-06 | Device for creating a gauze fabric |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1299586A1 true EP1299586A1 (en) | 2003-04-09 |
EP1299586B1 EP1299586B1 (en) | 2010-02-10 |
Family
ID=3896598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01949471A Expired - Lifetime EP1299586B1 (en) | 2000-07-12 | 2001-07-06 | Device for creating a gauze fabric |
Country Status (9)
Country | Link |
---|---|
US (1) | US6957671B2 (en) |
EP (1) | EP1299586B1 (en) |
CN (1) | CN1273664C (en) |
AT (1) | ATE457377T1 (en) |
AU (1) | AU2001270617A1 (en) |
BE (1) | BE1013594A3 (en) |
CZ (1) | CZ303290B6 (en) |
DE (1) | DE50115343D1 (en) |
WO (1) | WO2002004723A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ300042B6 (en) * | 2003-10-21 | 2009-01-14 | Výzkumný Ústav Textilních Stroju Liberec A.S. | Device for controlling warp threads in weaving machine for producing gauze fabrics |
WO2009027091A2 (en) * | 2007-08-31 | 2009-03-05 | Picanol N.V. | Device for the guidance of leno threads |
DE102007042938A1 (en) | 2007-08-31 | 2009-03-05 | Picanol N.V. | Device for guiding leno threads for leno weaving machine, has several guide eyes which are delimited in weaving width direction of rods |
DE102007043111A1 (en) | 2007-08-31 | 2009-03-05 | Picanol N.V. | Frame for leno weaving machine, has needle lamellae having recess delimited with respect narrow sides by legs bent in opposite directions in such a way that free passage is provided in running direction of ground threads |
ES2352227T3 (en) * | 2007-11-21 | 2011-02-16 | Groz-Beckert Kg | DEVICES FOR MANUFACTURING RETURN FABRICS. |
DE102010026609B3 (en) * | 2010-07-09 | 2011-11-17 | Lindauer Dornier Gesellschaft Mit Beschränkter Haftung | Method and apparatus for weaving patterns on fabrics with added weft effects |
DE102010034969B3 (en) | 2010-08-20 | 2011-11-03 | Lindauer Dornier Gesellschaft Mit Beschränkter Haftung | Weaving and weaving machine for weaving patterns in fabrics with additional pattern effects |
EP2530194B1 (en) * | 2011-06-01 | 2014-03-05 | Groz-Beckert KG | Leno device with lever drive and covering section |
KR101131212B1 (en) | 2011-06-21 | 2012-04-02 | 김경순 | Warp guide plate for loom |
BE1022146B1 (en) * | 2014-06-13 | 2016-02-19 | Picanol | SELF-EDUCATION DEVICE FOR A WRAKING THREAD |
CN105780240A (en) * | 2016-04-25 | 2016-07-20 | 镇江恒创纺织机械有限公司 | Leno heald frame system |
CN107829191A (en) * | 2017-12-26 | 2018-03-23 | 聊城由甲纺织机械有限公司 | A kind of harness frame in aweaving machine provided with transverse moving mechanism |
MA52684B1 (en) * | 2021-03-09 | 2022-12-30 | Ecole Superieure Des Ind Du Textile Et De Lhabillement Esith | Single blade system for making gauze step fabric |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191020714A (en) * | 1910-09-06 | 1911-06-01 | Edward Hollingworth | Improvements in or connected with Cross Cord or Leno Weave Mechanism for Looms. |
US1543045A (en) * | 1924-01-14 | 1925-06-23 | Bachman John Snelgrow | Leno loom |
DE466340C (en) * | 1925-05-14 | 1928-10-06 | Grossenhainer Webstuhl Und Mas | Device for the production of leno fabrics |
US1776102A (en) * | 1928-08-10 | 1930-09-16 | John C Brooks | Shedding mechanism for looms |
DE646462C (en) | 1935-05-21 | 1937-06-14 | Bruno Gruenler | Lathe device |
FR1411838A (en) * | 1964-08-03 | 1965-09-24 | Fatex | Improvements to devices for making selvedges, in particular on shuttle-less looms |
US3463199A (en) * | 1966-09-15 | 1969-08-26 | Riegel Textile Corp | Selvage-forming apparatus for double fabric looms |
FR2174675A1 (en) * | 1972-03-06 | 1973-10-19 | Terhaerst Masch | Loom for weaving gauze - having one heald frame movable laterally |
CH579162A5 (en) * | 1974-06-17 | 1976-08-31 | Sulzer Ag | Shedding arrangement for loom with needle rods - accurately guided auxiliary shaft prevents movements caused by deflection |
US4429722A (en) | 1981-05-18 | 1984-02-07 | Quaker Fabric Corp. | Method and apparatus for weaving fabrics of novel construction |
GB9120272D0 (en) | 1991-09-23 | 1991-11-06 | Bonas Griffith Ltd | A leno heald assembly |
CZ283439B6 (en) * | 1996-08-16 | 1998-04-15 | Vúts Liberec A.S. | Apparatus for controlling warp threads for producing gauzes on a weaving machine |
JP3856068B2 (en) * | 1998-11-16 | 2006-12-13 | Ykk株式会社 | Actuation mechanism of compound knitting needles in narrow crochet knitting machine |
JP2001159046A (en) * | 1999-11-16 | 2001-06-12 | Sulzer Textil Ag | Apparatus for producing leno weave |
EP1101850A1 (en) | 1999-11-16 | 2001-05-23 | Sulzer Textil AG | Device to form a leno weave |
US6510871B2 (en) * | 2001-03-05 | 2003-01-28 | Sulzer Textil Ag | Apparatus for the manufacture of leno fabrics |
US6851456B2 (en) * | 2001-07-18 | 2005-02-08 | Sultzer Textil Ag | Weaving machine for the manufacture of leno cloths |
-
2000
- 2000-07-12 BE BE2000/0443A patent/BE1013594A3/en active
-
2001
- 2001-07-06 CZ CZ20024056A patent/CZ303290B6/en not_active IP Right Cessation
- 2001-07-06 EP EP01949471A patent/EP1299586B1/en not_active Expired - Lifetime
- 2001-07-06 DE DE50115343T patent/DE50115343D1/en not_active Expired - Lifetime
- 2001-07-06 CN CNB018125735A patent/CN1273664C/en not_active Expired - Fee Related
- 2001-07-06 AT AT01949471T patent/ATE457377T1/en not_active IP Right Cessation
- 2001-07-06 AU AU2001270617A patent/AU2001270617A1/en not_active Abandoned
- 2001-07-06 US US10/312,559 patent/US6957671B2/en not_active Expired - Lifetime
- 2001-07-06 WO PCT/EP2001/007761 patent/WO2002004723A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO0204723A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE457377T1 (en) | 2010-02-15 |
EP1299586B1 (en) | 2010-02-10 |
DE50115343D1 (en) | 2010-03-25 |
CN1273664C (en) | 2006-09-06 |
US20030159746A1 (en) | 2003-08-28 |
WO2002004723A1 (en) | 2002-01-17 |
CN1441865A (en) | 2003-09-10 |
AU2001270617A1 (en) | 2002-01-21 |
CZ303290B6 (en) | 2012-07-18 |
CZ20024056A3 (en) | 2003-05-14 |
BE1013594A3 (en) | 2002-04-02 |
US6957671B2 (en) | 2005-10-25 |
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