CN101200839B - Multiple shaft directions warp knitting machine - Google Patents
Multiple shaft directions warp knitting machine Download PDFInfo
- Publication number
- CN101200839B CN101200839B CN2007101997277A CN200710199727A CN101200839B CN 101200839 B CN101200839 B CN 101200839B CN 2007101997277 A CN2007101997277 A CN 2007101997277A CN 200710199727 A CN200710199727 A CN 200710199727A CN 101200839 B CN101200839 B CN 101200839B
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- Prior art keywords
- yarn
- unit
- knitting machine
- warp knitting
- drive unit
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- 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
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
- D04H3/045—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles for net manufacturing
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
Abstract
The invention relates to a multi-axial warp knitting machine (1), comprising a yarn laying device (6) which is moved through a first driving device (22), a yarn storing device and a yarn depositing device (11) arranged between the yarn storing device and the yarn laying device (6), wherein, the yarn laying device is provided with at least one yarn layer on or inside a conveying device through which the yarn layer can be conveyed to a solidifying device. The invention provides multi-axial warp knitting machine with high productivity. Therefore, the yarn depositing device (11) is provided with a yarn storing section (26) whose length is changed through a second driving device (15), wherein, the second driving device (15) is connected with a control device (23) which controls the second driving device (15) according to the movement of the yarn laying device (6).
Description
Technical field
The present invention relates to a kind of multiple-axial warp knitting machine, this multiple-axial warp knitting machine has the yarn inserting unit that moves by first drive unit, store up yarn feeding device and be arranged in yarn storing unit between described storage yarn feeding device and the described yarn inserting unit, wherein said yarn inserting unit on transport or the inside place at least one layer, utilize described transport described layer can be flowed to solidification equipment.
Background technology
Such as from DE 10 2,004 012 305 B3, disclosing a kind of described multiple-axial warp knitting machine.Transport is made of two carrier chains, and described carrier chain has a plurality of hooks of leading respectively, and the yarn of layer places the described hook of leading.Pad yarn device transverse to the throughput direction of described transport or with greater than 0 ° angular movement arbitrarily, is used to place described layer at this.The yarn of said formation layer is extracted out from the storage yarn feeding device, and described storage yarn feeding device is such as being made of the warp thread bobbin cradle.If a plurality of layers are connected to each other in solidification equipment together, that just produces the open width structure of weaving, the yarn system of described open width structure to each other multiaxis to orientation.A kind of typical structure of such weaving open width structure has such layer, they with 0 ° ,+45 °, 90 ° and-45 ° carry out orientation.
Because described yarn inserting unit moves around, so this yarn inserting unit can't be extracted yarn out equably from described storage yarn feeding device.Or rather, extract described yarn by spells out.Stop thus with high productivity ratio to form layer, yarn tension changes when giving yarn because the yarn that occurs in desultory yarn extraction acceleration peak value and yarn draw speed peak value can cause.This just makes holding element this process difficulty that becomes in the wound element in other words that reliably single yarn is fixed on described transport.Described yarn tension especially can descend on conclusive position, that is to say at the holding element of described yarn being put into described transport in other words during wound element.
Therefore people use Yarn Brake.But these brakes can't prevent that yarn tension changes when giving yarn, and they only help to guarantee to have certain minimum tension force when drawing yarn.These Yarn Brakes have influence on the attainable tension force of the yarn that the drawing-off of described single layer introduces thus.But these Yarn Brakes have not only improved maximum yarn tension, and have improved average yarn tension, and have a negative impact this service life to the element (yarn inserting unit, transport) of participation weft insertion system.In addition, when passing, increased the risk of broken yarn by the yarn tension that improves because of braking.Producing high yarn by the unwinding yarn that is caused by desultory yarn consumption quickens.At yarn big ballooning of yarn appears thus when yarn package is extracted out.This has increased the broken yarn risk equally.
Itself also can't resolve this problem the use of yarn storing unit.Under known situation, described yarn storing unit has a bobbin, and this bobbin pulls down yarn with gravity.Also only remain on minimum tension force to a certain extent thus.
Summary of the invention
Task of the present invention is to provide to have large-duty multiple-axial warp knitting machine.
This task is resolved on a kind of multiple-axial warp knitting machine that starts described type by the following method, be that the yarn storing unit has and can deposit the yarn section by what second drive unit changed length, wherein second drive unit is connected with control device, and this control device is controlled described second drive unit according to moving of described yarn inserting unit.
Utilize this design to extract out from described storage yarn feeding device, such as extracting out from the warp thread bobbin cradle with the yarn that even velocity at least almost will be formed with layer to be placed afterwards.Meanwhile, can keep yarn tension to a great extent equably equally, yarn is under this yarn tension when being put into yarn on the transport.The method that realizes this point is, slowly moves or yarn consumption amount when low at described yarn inserting unit, and described yarn storing unit can receive the yarn of certain-length.In contrast, when yarn inserting unit fast moving or the increase of yarn consumption amount, described yarn storing unit is then fed and is given needed length of yarn.Certainly, to and feed and be controlled the reception of corresponding length of yarn now, thereby the tension force in the yarn can be kept identical and meanwhile equally can be to a great extent yarn employed speed when the storage yarn feeding device is extracted out be kept evenly.Therefore we can say that the summation of " speed " of yarn inserting unit and yarn storing unit keeps constant and at least almost keeps constant in other words.
In this case, preferred described control device is controlled described second drive unit according to described first drive unit.By described first drive unit, can obtain the information that moves in simple mode about described yarn inserting unit.Such as accomplishing this point by the following method, be a described yarn inserting unit moving curve given in advance, described moving curve must begin (abfahren) by described first drive unit.If this moving curve also is kept in the described control device that second drive unit is controlled, that is moving and according to the yarn consumption amount in the described yarn storing unit described second drive unit being controlled thus according to described yarn inserting unit successfully just.
Preferred described first drive unit is connected with described control device.Can between the drive unit of described first drive unit and the just described yarn storing unit of second drive unit, realize direct coupling connection with this, realize this coupling connection by described control device or rather.If especially described first drive unit is not only activated by described control device, and it also gives described control device with the position feedback of described yarn inserting unit, that just can realize the point-device actuating to described yarn storing unit, make describedly to be located at the yarn section of depositing in the yarn storing unit, that receive yarn and to have such length, thereby described yarn can be extracted out and can be given described yarn inserting unit with it with uniform tension force from the storage yarn feeding device equably.
The preferred described restriction that the yarn section is subjected at least one transfer of depositing, described transfer can move by described second drive unit.This is a kind of simple especially design, is used for being equipped with changeable receiving ability to described yarn storing unit.Certainly, described transfer is no longer controlled by elastic force or gravity now, but controls by described second drive unit, thereby the yarn tension that can avoid to a great extent occurring when doffing fluctuates.
At this, preferred described transfer can move horizontally.Its advantage is to ignore gravity actually.Described second drive unit also can be constructed simplyr, because it also only must overcome friction rather than gravity when described transfer moves.
Preferred described yarn storing unit is arranged in the top of described yarn inserting unit.Can between described yarn storing unit and yarn inserting unit, keep short stroke thus, thereby will remain in the very little scope because of the danger that the alien influence factor further influences tension force.
Preferably arrange the described yarn section of depositing according to the mode of the moving direction that is parallel to described yarn inserting unit.This point is particularly favourable, if described yarn inserting unit is placed " band " that the yarn by many orientations parallel to each other constitutes.Then can handle the single yarn of this root band in an identical manner.
Preferably arrange a yarn separating device at described yarn inlet and/or the yarn outlet of depositing the yarn section.The yarn separating device can be such as being made of reed or porous plate.It can make people be used to make the single yarn open-width to become band shape simultaneously described yarn storing unit.
Preferably the yarn outlet fixed-site of described yarn storing unit ground is arranged, and described control device when being activated, described second drive unit takes in the spacing between the yarn outlet of the current location of described yarn inserting unit and described yarn storing unit.If described yarn inserting unit moves around, yarn outlet and the spacing between the yarn inserting unit at described yarn storing unit also changes thereupon so.If this spacing variation is together taken in, that just can store up yarn the yarn feeding device extraction and also can keep tension force equably from warp thread bobbin cradle or other more equably, and described yarn is transferred on the described transport at this tension force.
Description of drawings
The present invention will be described in conjunction with the accompanying drawings by means of a kind of preferred embodiment below.Wherein:
Fig. 1 is the vertical view of multiple-axial warp knitting machine,
Fig. 2 is the perspective view of yarn storing unit,
Fig. 3 is used for the schematic diagram that the function to multiple-axial warp knitting machine makes an explanation.
The specific embodiment
Multiple-axial warp knitting machine 1 has a knitting machine 2, and 2 of this knitting machines have a knitting areas 3, as hereinafter will explaining as described in knitting areas 3 as solidification equipment.
Be provided with a transport that constitutes by first longitudinal conveyor 4 and second longitudinal conveyor 5, be used for yarn is transported to described knitting areas 3.Described yarn places with layer on the described longitudinal conveyor 4,5 at this.
In addition, be provided with first yarn inserting unit 6, it is extracted yarn 7 and place above the described longitudinal conveyor 4,5 the inside in other words with respect to the moving direction of described longitudinal conveyor 4,5 with one 90 ° angle out from warp thread bobbin cradle 8a.Be provided with second yarn inserting unit 8, it is extracted yarn 9 and these yarns 9 are placed described longitudinal conveyor 4,5 above in other words the inside with respect to the moving direction of described longitudinal conveyor 4,5 with an about angle of 45 ° as layer out from warp thread bobbin cradle 10.
So construct this two yarn inserting units in known manner, make it placed side by side abreast described from warp thread bobbin cradle 8a, 10 yarns of extracting out, thereby produce two layers on described longitudinal conveyor 4,5, correspondingly described yarn is close to and is arranged in abreast each other in these two layers.In described knitting areas 3, these two layers are connected to each other together by means of knitting line then, thereby produce the open width structure of weaving by knitting process.Replace knitting, the also scheme that can use other to be used to solidify.Can certainly be provided with than these two more yarn inserting units of the yarn inserting unit that illustrates, place the yarn inserting unit of yarn with-45 ° angle such as another.A yarn feeding device also can be set, and this yarn feeding device is parallel to described longitudinal conveyor 4,5 ground feeding yarn and forms so-called 0 ° of layer.This layer can be gone up at an arbitrary position equally and be replenished by a surface, and this surface can be connected with remaining layer with employed curing.
For each yarn inserting unit 6,8 has set a yarn storing unit 11,12, also to explain in detail described yarn storing unit by Fig. 2.By means of Fig. 3 the acting in conjunction of yarn inserting unit 6 and yarn storing unit 11 is made an explanation.Because described yarn storing unit 11,12 structures are identical, so only make an explanation by means of yarn storing unit 11.
Described yarn storing unit 11 has crossbeam 13, and this crossbeam 13 remains on pillar A, the B of the top, moving region that is in described yarn inserting unit 6.Described crossbeam 13 fixed-site.
Hang a transfer 14 on this crossbeam, this transfer 14 can move along both direction along described crossbeam 13.In addition, this transfer 14 is driven by a drive unit 15.
Described porous plate 17,20 reed 18,19 in other words forms the yarn separating devices, and wherein said yarn separating device makes described yarn 7 remain parallel to each other orientation by described yarn storing unit 11 delivery the time.
Fig. 3 illustrates the acting in conjunction of described yarn storing unit 11 and described yarn inserting unit 6 with the form of very simplifying.Represent with identical Reference numeral with parts identical in Fig. 1 and 2.For the purpose of coming into plain view, some parts have been saved here, as described porous plate 17,20 and reed 18,19 and transfer 16.
Described yarn inserting unit 6 is driven by drive unit 22.This drive unit 22 moves on to described yarn inserting unit 6 described second longitudinal conveyor 5 and once again it is retracted from described first longitudinal conveyor 4 according to moving curve given in advance.In this process, described yarn inserting unit 6 must correspondingly rest in the zone of described longitudinal conveyor momently, so that can put down described yarn 7.In order to reach high as far as possible productivity ratio, in the zone that is between described two longitudinal conveyors 4,5, move described yarn inserting unit as early as possible and correspondingly make its acceleration.
For yarn tension F with described yarn 7
ZKeep constant as far as possible and will keep constant equally as far as possible from the draw speed of the yarn 7 of described warp thread bobbin cradle 8a simultaneously, described two drive units 15,22 are connected with a control device 23 now.Described control device 23 is controlled first drive unit 22 of described yarn inserting unit 6 according to moving curve mentioned above.In addition, described control device 23 is also controlled second drive unit 15 of described transfer 14, makes that the draw speed from the yarn 7 of described warp thread bobbin cradle 8a keeps constant.Therefore, if described yarn inserting unit 6 reduces its speed and stops at last even momently, that just correspondingly drives described transfer 14 quickly, makes the absolute value of speed summation of described yarn inserting unit 6 and transfer 14 remain constant.At this, described control device 23 is also considered the current location of described yarn inserting unit 6 certainly, because the spacing between the yarn outlet of described yarn inserting unit 6 and yarn storing unit 11 changes continuously, just described transfer 21 changes continuously.
If give described control device 23 with the position feedback of described yarn inserting unit 6 and transfer 14, that just can be better controlled.This point is represented by holding wire 24,25.Described control device always then " knows " how it must control described transfer 14 according to moving of described yarn inserting unit 6.
Described yarn storing unit 11 is arranged in the top of described yarn inserting unit 6, thereby this yarn storing unit 11 is basic without any need for extra structure space.Be provided with one and deposit yarn section 26 in described yarn storing unit, this length of depositing yarn section 26 is determined by the position of described transfer 14.This deposits the moving direction extension that yarn section 26 is parallel to described yarn inserting unit 6.Correspondingly, when the many yarns that are arranged side by side constitute the band of open-widths, only need to make the directional steering of described band, thereby needn't change the structure of described band and needn't change the tension force of yarn thus perpendicular to stretch wide.
Claims (8)
1. multiple-axial warp knitting machine, this multiple-axial warp knitting machine has the yarn inserting unit that moves by first drive unit, storage yarn feeding device and be arranged in yarn storing unit between described storage yarn feeding device and the described yarn inserting unit, wherein said yarn inserting unit on transport or the inside place at least one layer, utilize described transport described layer can be flowed to solidification equipment, it is characterized in that, described yarn storing unit (11) has and can deposit yarn section (26) by what second drive unit (15) changed length, wherein said second drive unit (15) is connected with control device (23), this control device (23) is then according to described yarn inserting unit (6, described second drive unit (15) is controlled in moving 8), and described control device (23) is controlled described second drive unit (15) according to described first drive unit (22).
2. by the described multiple-axial warp knitting machine of claim 1, it is characterized in that described first drive unit (22) is connected with described control device (23).
3. by the described multiple-axial warp knitting machine of claim 1, it is characterized in that describedly deposit the restriction that yarn section (26) is subjected at least one transfer (14), this transfer (14) can move by described second drive unit (15).
4. by the described multiple-axial warp knitting machine of claim 3, it is characterized in that described transfer (14) can move horizontally.
5. by the described multiple-axial warp knitting machine of claim 1, it is characterized in that described yarn storing unit (11) is arranged in the top of described yarn inserting unit (6).
6. by the described multiple-axial warp knitting machine of claim 1, it is characterized in that, describedly deposit the moving direction that yarn section (26) is parallel to described yarn inserting unit (6) and arrange.
7. by the described multiple-axial warp knitting machine of claim 1, it is characterized in that, on the described yarn inlet of depositing yarn section (26) and/or yarn outlet, arranged yarn separating device (17,18; 19,20).
8. by the described multiple-axial warp knitting machine of claim 1, it is characterized in that, the yarn outlet of described yarn storing unit (11) is arranged on fixed-site ground, and described control device (23) takes in the spacing between the yarn outlet of the current location of described yarn inserting unit (6) and described yarn storing unit (11) when activating described second drive unit (15).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202006018717.0 | 2006-12-12 | ||
| DE200620018717 DE202006018717U1 (en) | 2006-12-12 | 2006-12-12 | High productivity multiaxial machine, has thread laying device, thread store and thread reservoir with storage zone with length controlled in dependence on movement of laying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101200839A CN101200839A (en) | 2008-06-18 |
| CN101200839B true CN101200839B (en) | 2011-07-27 |
Family
ID=37776387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101997277A Active CN101200839B (en) | 2006-12-12 | 2007-12-12 | Multiple shaft directions warp knitting machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101200839B (en) |
| DE (1) | DE202006018717U1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009042384B4 (en) * | 2009-09-21 | 2013-08-08 | Liba Maschinenfabrik Gmbh | A method and apparatus for applying a unidirectional fiber ply to a moving support and method of making a multiaxial fabric |
| DE102010006543A1 (en) * | 2010-02-01 | 2011-08-04 | Karl Mayer China LTD., Jiangsu | Device for putting weft thread bands, has carriage, which is movable into primary direction, and thread lever, which is moved in secondary direction opposite to carriage |
| DE102012206404B4 (en) * | 2011-08-29 | 2014-01-02 | Liba Maschinenfabrik Gmbh | Multiaxial fabric scrim, method of making a multiaxial scrim, multi-axial, and unidirectional filament and multi-axial threadline fabrication facilities |
| DE102012205890B4 (en) * | 2012-04-11 | 2014-02-13 | Liba-Maschinenfabrik Gmbh | MAGAZINE PREVIEW UNIT FOR A MULTIAXIAL MACHINE |
| CN102677386B (en) * | 2012-05-30 | 2014-03-12 | 常州市润源经编机械有限公司 | Rotary weft spreading device |
| CN103334221B (en) * | 2013-06-03 | 2014-12-17 | 常州市第八纺织机械有限公司 | Carbon fiber multi-axial warp knitting machine |
| CN103352314B (en) * | 2013-06-28 | 2015-07-08 | 常州市第八纺织机械有限公司 | Intelligent yarn storage device, control system and control method of carbon fiber multi-axial warp knitting machine |
| CN108149375A (en) * | 2018-01-10 | 2018-06-12 | 海宁市中发纺织有限公司 | A kind of multiple-axial warp knitting machine with protective device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1011132B (en) * | 1954-11-12 | 1957-06-27 | Siemens Ag | United driving and safety brake for conveyor machines |
| US4706475A (en) * | 1986-09-13 | 1987-11-17 | Liba Maschinenfabrik Gmbh | Device for presenting weft yarns to the knitting needles of a warp knitting machine |
| CN1130695A (en) * | 1994-11-08 | 1996-09-11 | Liba机械制造有限公司 | Warp-knitting machine equipped with yarn storage device in feed device |
| DE19739411A1 (en) * | 1997-08-28 | 1999-03-04 | Malimo Maschinenbau | Weft band feed to warp knitter |
| DE19802994C1 (en) * | 1998-01-28 | 1999-05-20 | Mayer Malimo Textilmaschf | Laying system for yarn bands, used in knitter |
| CN1740420A (en) * | 2004-08-27 | 2006-03-01 | 卡尔.迈耶.马里莫纺织机械制造有限责任公司 | Knitting machine |
| CN1755000A (en) * | 2004-03-11 | 2006-04-05 | 卡尔.迈耶.马里莫纺织机械制造有限责任公司 | Method and device for laying long filament fibre |
| CN1806073A (en) * | 2003-06-19 | 2006-07-19 | 泰克斯蒂尔玛股份公司 | Knitting machine |
| CN1824859A (en) * | 2005-02-25 | 2006-08-30 | 卡尔.迈耶.马里莫纺织机械制造有限责任公司 | Device for feeding fiber webs to a knitting machine |
-
2006
- 2006-12-12 DE DE200620018717 patent/DE202006018717U1/en not_active Expired - Lifetime
-
2007
- 2007-12-12 CN CN2007101997277A patent/CN101200839B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1011132B (en) * | 1954-11-12 | 1957-06-27 | Siemens Ag | United driving and safety brake for conveyor machines |
| US4706475A (en) * | 1986-09-13 | 1987-11-17 | Liba Maschinenfabrik Gmbh | Device for presenting weft yarns to the knitting needles of a warp knitting machine |
| CN1130695A (en) * | 1994-11-08 | 1996-09-11 | Liba机械制造有限公司 | Warp-knitting machine equipped with yarn storage device in feed device |
| DE19739411A1 (en) * | 1997-08-28 | 1999-03-04 | Malimo Maschinenbau | Weft band feed to warp knitter |
| DE19802994C1 (en) * | 1998-01-28 | 1999-05-20 | Mayer Malimo Textilmaschf | Laying system for yarn bands, used in knitter |
| CN1806073A (en) * | 2003-06-19 | 2006-07-19 | 泰克斯蒂尔玛股份公司 | Knitting machine |
| CN1755000A (en) * | 2004-03-11 | 2006-04-05 | 卡尔.迈耶.马里莫纺织机械制造有限责任公司 | Method and device for laying long filament fibre |
| CN1740420A (en) * | 2004-08-27 | 2006-03-01 | 卡尔.迈耶.马里莫纺织机械制造有限责任公司 | Knitting machine |
| CN1824859A (en) * | 2005-02-25 | 2006-08-30 | 卡尔.迈耶.马里莫纺织机械制造有限责任公司 | Device for feeding fiber webs to a knitting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101200839A (en) | 2008-06-18 |
| DE202006018717U1 (en) | 2007-02-15 |
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