EP1187947A1 - Verfahren zur herstellung multiaxialer kettengewirke - Google Patents
Verfahren zur herstellung multiaxialer kettengewirkeInfo
- Publication number
- EP1187947A1 EP1187947A1 EP00930957A EP00930957A EP1187947A1 EP 1187947 A1 EP1187947 A1 EP 1187947A1 EP 00930957 A EP00930957 A EP 00930957A EP 00930957 A EP00930957 A EP 00930957A EP 1187947 A1 EP1187947 A1 EP 1187947A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- threads
- diagonal
- thread
- weft
- 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
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B23/00—Flat warp knitting machines
- D04B23/12—Flat warp knitting machines with provision for incorporating unlooped wefts extending from selvedge to selvedge
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B23/00—Flat warp knitting machines
- D04B23/22—Flat warp knitting machines with special thread-guiding means
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/02—Cross-sectional features
- D10B2403/024—Fabric incorporating additional compounds
- D10B2403/0241—Fabric incorporating additional compounds enhancing mechanical properties
- D10B2403/02412—Fabric incorporating additional compounds enhancing mechanical properties including several arrays of unbent yarn, e.g. multiaxial fabrics
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/02—Reinforcing materials; Prepregs
Definitions
- the invention relates to a method for producing multiaxial warp knitted fabrics with stretching threads in the longitudinal, transverse and diagonal directions by direct entry of the diagonal threads as weft thread sections on the back of the ascending needles.
- the textile structures produced with the process are used due to their high stability and strength in the various directions as reinforcements in composite materials, for example in automobile construction, rail vehicle construction and the aviation industry.
- DE-OS 33 04 345 describes a warp knit fabric with a normal warp knitted fabric as the base and reinforcing threads inserted therein, in which weft threads run parallel to one another and are each arranged between two stitch heads of successive stitch rows and two sets of diagonal threads are additionally provided, which alternately run between two stitch heads in the direction of action of successive rows of stitches.
- weft threads run parallel to one another and are each arranged between two stitch heads of successive stitch rows and two sets of diagonal threads are additionally provided, which alternately run between two stitch heads in the direction of action of successive rows of stitches.
- reinforcing threads in the warp, weft and diagonal directions that are not pierced by the knitting needles. All reinforcing threads are arranged at an angle of 45 ° to each other, which cannot be changed due to the process.
- a special warp knitting machine for processing multiaxial fabrics is also known, in which up to seven thread layers are suspended in a transport chain (90 ° / ⁇ diagonal / 90 ° / -diagonal / 90 ° / + diagonal / 90 °) and in the area of the knitting point a warp knit weave are consolidated.
- a 0 ° thread system can be placed as the last thread layer immediately before the knitting point.
- the knitting process requires piercing the densely layered thread layers, which leads to the threads being displaced.
- a reduction in the firmness and an un- The consequences are uniform, inadequate structural density (Melliand Textile Reports 11/86, pp. 804 to 806).
- the multiaxial thread entry is realized by a combination of threads in the directions 0 ° / 90 ° / ⁇ 45 ° (ITB nonwovens - technical textiles 1/95, p.44 to 45).
- the special feature of this knitted fabric is that the diagonal and vertical (0 °) threads on the front and back of the fabric alternate after every second row.
- the course of the thread for the warp and diagonal threads from the front to the back of the fabric is realized by additional drives for the feed elements, one for controlling the crossing movement and one for controlling the offset movement, which is carried out like a carousel.
- This integration technique is primarily intended to prevent delamination that occurs with composite materials.
- a biaxial knitting technique and a biaxially reinforced multi-layer knitted fabric are known from DE 44 19 985 A1.
- a total of five weft thread systems can be entered crossing at right angles (90 ° / 0 ° / 90 ° / 0 ° / 90 °).
- the arrangement of the thread layers (0 ° / 90 °) means that no multi-axial knitted fabrics can be produced.
- the 0 ° thread layers are also pierced by the expelling needles, which leads to the same disadvantages as with the special warp knitting machine.
- the invention specified in claim 1 is based on the problem of developing a method for producing knitted reinforcing structures with a multiple, variable, multiaxial thread course, with which the thread angle in dependence on the diagonal and 90 ° threads with the machine running required lines of force can be changed.
- the piercing of thread layers or the piercing of threads should be avoided in order to ensure cost-effective production.
- the advantages achieved by the invention are, in particular, that the right / right warp knitting machine can be used to insert the weft in accordance with the stitch rows, with four diagonal thread systems per complete stitch row being incorporated with little effort by simultaneously inserting the diagonal threads on the front and rear needle bars.
- Another advantage is that the 0 ° threads are fed and bound directly between the weft threads moving in opposite directions. Piercing of the threads is excluded in this procedure, so that a better use of the substance is possible compared to multi-axially forged fabrics. Due to the direct weft insertion, there is no prior fabric production (hanging the thread sheets placed in the angle in transport chains) required so that there is direct control of the displacement path of the weft threads in the area of the knitting zone. In this way it is possible to change the laying angle of the diagonal threads according to the line of force. Likewise, 90 ° threads can be brought into a 0 ° position, which means that different layer thicknesses can be realized in different sequences.
- binding elements of a coarse, three-dimensional right / right warp knit structure significantly strengthen the multiaxially layered threads in the Z direction and thus significantly improve the resistance to delamination.
- FIG. 2 shows a section through a right / right warp knitted fabric according to FIG. 1,
- FIG. 3 shows the schematic representation of a top view of the right / right warp knitted fabric according to the detail in FIG. 2.
- the knitting point of a right-right warp knitting machine is formed by a front and rear needle bar 1, 1 'with knitting needles and the associated knock-over edges 2, 2' and the thread-laying members.
- These consist of at least one oscillating base guide rail 3, which implements the stitch formation 3 ', 3 "on the front and rear needle bars 1, 1', and at least one oscillating weft guide rail 4, 5 assigned to the front and rear needle bars 1, 1 ' , via the additional 0 ° weft threads (4 ', 5'), which are laterally displaced if necessary further consist of non-vibrating thread layers 6 to 13.
- the thread layer 6 is assigned to the front needle bar 1 and carries a 90 ° thread system 6 ', which is tied off from the basic threads 3' by means of a laying rail 3 in the area of the front needle bar 1. Depending on the course of the line of force, the thread layer 6 can also suspend or lay only over partial distances.
- the thread layers 7 and 9 are provided for the entry of diagonal threads 7 ', 9', which are designed, for example, as tubes and are arranged on an oscillating or rotating entrainment device at a distance from the needle pitch over the entire working width. After reaching the respective edge of the goods, the thread layers 7 move into the position of the thread layers 9 and the thread layers 9 into the position of the thread layers 7.
- the offset length per stitch row depends on the desired laying angle of the diagonal threads 7 ', 9'. If necessary, the diagonal threads 7 ', 9' can also suspend according to the pattern and run as 0 ° threads.
- the rigidly arranged thread layer 8 is provided for feeding the 0 ° threads 8 'which lie in the knitted fabric between the diagonal threads 7' and 9 '.
- the thread layers 10 to 13 are assigned to the rear needle bar 1 '.
- the rear diagonal threads 10 'and 12' are laid by the thread layers 10 and 12, the entry principle corresponding to that of the thread layers 7 and 9.
- the rear 0 ° threads 11 ' are placed between the diagonal threads 10' and 12 'by rigidly arranged thread layers 11 analogous to the threads 8'.
- the thread layer 13 enters the rear 90 ° thread system 13 ', whereby, as in the case of the thread layer 6, it can also be suspended or inserted over partial distances.
- the method according to the invention results in the following arrangement of the thread layers in the knitted fabric: 90 °; -diagonal; 0 °; + Diagonal; 0 ° with pattern-based offset; 0 ° with pattern-based offset; -diagonal; 0 °; + Diagonal; 90 °.
- the laying angle of the diagonal threads 7 'and 9' or 10 'and 12' can be changed by lengthening or shortening the length of the underlay for each stitch row.
- FIG. 3 shows a crossing point of four thread systems 6 ', 7', 8 'and 9' on the front needle bar 1. Accordingly, the 90 ° threads 6 'are in front of the Diagonal threads 7 'and 9' and the 0 ° threads 8 'run between the digital threads 7', 9 '.
- the 90 ° threads, diagonal threads and 0 ° threads are arranged on the rear needle bar 1 'with the thread systems 10', 11 ', 12' and 13 ', the crossing points of the front thread systems and corresponding to the right / right knitted structure the rear thread systems are staggered.
- multiaxial structures with a targeted course of force lines in all directions can be optimally produced for a large number of application areas.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Of Fabric (AREA)
- Knitting Machines (AREA)
- Treatment Of Fiber Materials (AREA)
- Lubricants (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19928635 | 1999-06-23 | ||
DE19928635A DE19928635C1 (de) | 1999-06-23 | 1999-06-23 | Verfahren zur Herstellung multiaxialer Kettengewirke |
PCT/CH2000/000316 WO2001000914A1 (de) | 1999-06-23 | 2000-06-09 | Verfahren zur herstellung multiaxialer kettengewirke |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1187947A1 true EP1187947A1 (de) | 2002-03-20 |
EP1187947B1 EP1187947B1 (de) | 2004-03-24 |
Family
ID=7912180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00930957A Expired - Lifetime EP1187947B1 (de) | 1999-06-23 | 2000-06-09 | Verfahren zur herstellung multiaxialer kettengewirke |
Country Status (11)
Country | Link |
---|---|
US (1) | US6711919B1 (de) |
EP (1) | EP1187947B1 (de) |
JP (1) | JP2003524081A (de) |
KR (1) | KR100598449B1 (de) |
CN (1) | CN1181234C (de) |
AT (1) | ATE262606T1 (de) |
AU (1) | AU4908000A (de) |
DE (2) | DE19928635C1 (de) |
ES (1) | ES2215659T3 (de) |
HK (1) | HK1044808B (de) |
WO (1) | WO2001000914A1 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4413189B2 (ja) * | 2003-03-31 | 2010-02-10 | セーレン株式会社 | ずれ防止立体構造経編地 |
DE10359043B4 (de) * | 2003-12-17 | 2010-02-11 | Sächsisches Textilforschungsinstitut e.V. | Verfahren zur Stabilisierung textiler Halbzeuge |
CN100406628C (zh) * | 2004-04-29 | 2008-07-30 | 东华大学 | 双轴向增强纬编间隔针织结构及其编织方法 |
CN100441758C (zh) * | 2004-10-20 | 2008-12-10 | 东华大学 | 一种针织结构及其编织方法和专用装置 |
DE102004062143B4 (de) * | 2004-12-23 | 2006-11-16 | Sächsisches Textilforschungsinstitut e.V. | Vorrichtung für die Fadenzuführung zur Wirkstelle einer Multiaxial-Kettenwirkmaschine |
US7614258B2 (en) | 2006-10-19 | 2009-11-10 | C.R. Bard, Inc. | Prosthetic repair fabric |
US9416471B2 (en) * | 2008-06-27 | 2016-08-16 | Herniamesh S.R.L. | Lightweight quadriaxial surgical mesh |
RU2568095C2 (ru) | 2008-12-15 | 2015-11-10 | Аллерган, Инк. | Вязаная хирургическая имплантируемая сетка |
US9308070B2 (en) | 2008-12-15 | 2016-04-12 | Allergan, Inc. | Pliable silk medical device |
US9326840B2 (en) | 2008-12-15 | 2016-05-03 | Allergan, Inc. | Prosthetic device and method of manufacturing the same |
US9204954B2 (en) * | 2008-12-15 | 2015-12-08 | Allergan, Inc. | Knitted scaffold with diagonal yarn |
US9204953B2 (en) | 2008-12-15 | 2015-12-08 | Allergan, Inc. | Biocompatible surgical scaffold with varying stretch |
CN101476205B (zh) * | 2009-01-20 | 2012-03-07 | 常州市宏发纵横新材料科技股份有限公司 | 多轴向经编增强复合材料的生产工艺 |
HUE029142T2 (hu) * | 2010-03-18 | 2017-02-28 | Toho Tenax Europe Gmbh | Varrott multiaxiális szövetszerkezet |
DE102010015339B4 (de) * | 2010-04-17 | 2011-12-15 | Gustav Gerster Gmbh & Co. Kg | Gelege-Anordnung |
CN101984174B (zh) * | 2010-11-01 | 2012-07-25 | 常州市宏发纵横新材料科技股份有限公司 | 多轴向经编织物生产工艺 |
CN103161021A (zh) * | 2013-04-02 | 2013-06-19 | 浙江联洋复合材料有限公司 | 一种多轴向经编织物及其制造方法 |
WO2015047506A2 (en) | 2013-06-28 | 2015-04-02 | Von Hess John | Antiballistic fabric and method of manufacturing the same |
DE102013014584B3 (de) * | 2013-08-29 | 2014-11-13 | Sächsisches Textilforschungsinstitut e.V. | Verfahren und Vorrichtung zur Herstellung von Kettengewirken mit variabler Breite |
DE102013014586B4 (de) | 2013-08-29 | 2017-02-16 | Sächsisches Textilforschungsinstitut e.V. | Knotenlos gewirktes Netz mit diagonalem Schussfadenverlauf und Verfahren zur Herstellung |
CN103590185B (zh) * | 2013-10-24 | 2016-05-18 | 常州市宏发纵横新材料科技股份有限公司 | 一种双轴向混编织物的编织方法 |
CN109322054B (zh) * | 2018-11-23 | 2024-05-28 | 福建省鑫港纺织机械有限公司 | 一种超经机的结构 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102856C (de) * | ||||
DE3304345C2 (de) * | 1983-02-09 | 1986-04-10 | Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen | Kettenwirkware mit Verstärkungsfäden |
DE3447643C1 (de) * | 1984-12-28 | 1986-08-07 | Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen | Kettenwirkmaschine mit Magazinschussvorrichtung und auf dieser hergestellte Kettenwirkware |
DD256885A1 (de) * | 1986-12-31 | 1988-05-25 | Univ Dresden Tech | Steuersystem fuer schussfaeden (schussfadenhalteleiste) |
DD268723A1 (de) * | 1988-02-16 | 1989-06-07 | Textimaforschung Malimo Veb | Fadenlegeeinrichtung |
DD268724A1 (de) * | 1988-02-16 | 1989-06-07 | Textimaforschung Malimo Veb | Diagonalfadeneinrichtung |
DD268722A1 (de) * | 1988-02-16 | 1989-06-07 | Textimaforschung Malimo Veb | Maschinensystem zur herstellung eines multiaxialflaechengebildes |
DD268721A1 (de) * | 1988-02-16 | 1989-06-07 | Textimaforschung Malimo Veb | Diagonalfadenlegeeinrichtung |
DD268720A1 (de) * | 1988-02-16 | 1989-06-07 | Textimaforschung Malimo Veb | Einschliess- und abschlageinrichtung an einer zweibarrigen naehwirkmaschine |
US4845963A (en) * | 1988-04-12 | 1989-07-11 | Westpoint Pepperell, Inc. | Reinforcing fabric for power transmission belts, hoses and the like |
DE4419985C2 (de) * | 1994-06-08 | 1996-04-04 | Univ Dresden Tech | Mehrlagengestrick und Verfahren zu seiner Herstellung |
US5809805A (en) * | 1996-09-03 | 1998-09-22 | Mcdonnell Douglas Corporation | Warp/knit reinforced structural fabric |
US6233978B1 (en) * | 1998-04-09 | 2001-05-22 | Gehring Textiles, Inc. | Pointed thrust weapons protective fabric system |
-
1999
- 1999-06-23 DE DE19928635A patent/DE19928635C1/de not_active Expired - Fee Related
-
2000
- 2000-06-09 EP EP00930957A patent/EP1187947B1/de not_active Expired - Lifetime
- 2000-06-09 KR KR1020017009086A patent/KR100598449B1/ko not_active IP Right Cessation
- 2000-06-09 CN CNB008032084A patent/CN1181234C/zh not_active Expired - Fee Related
- 2000-06-09 AT AT00930957T patent/ATE262606T1/de not_active IP Right Cessation
- 2000-06-09 US US10/009,871 patent/US6711919B1/en not_active Expired - Fee Related
- 2000-06-09 ES ES00930957T patent/ES2215659T3/es not_active Expired - Lifetime
- 2000-06-09 WO PCT/CH2000/000316 patent/WO2001000914A1/de active IP Right Grant
- 2000-06-09 DE DE50005797T patent/DE50005797D1/de not_active Expired - Fee Related
- 2000-06-09 AU AU49080/00A patent/AU4908000A/en not_active Abandoned
- 2000-06-09 JP JP2001506311A patent/JP2003524081A/ja active Pending
-
2002
- 2002-08-21 HK HK02106102.0A patent/HK1044808B/zh not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO0100914A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1187947B1 (de) | 2004-03-24 |
US6711919B1 (en) | 2004-03-30 |
DE50005797D1 (de) | 2004-04-29 |
HK1044808B (zh) | 2005-04-29 |
AU4908000A (en) | 2001-01-31 |
WO2001000914A1 (de) | 2001-01-04 |
CN1181234C (zh) | 2004-12-22 |
ES2215659T3 (es) | 2004-10-16 |
DE19928635C1 (de) | 2000-10-05 |
ATE262606T1 (de) | 2004-04-15 |
HK1044808A1 (en) | 2002-11-01 |
JP2003524081A (ja) | 2003-08-12 |
CN1339075A (zh) | 2002-03-06 |
KR100598449B1 (ko) | 2006-07-10 |
KR20010089611A (ko) | 2001-10-06 |
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