CN1483870A - Spinning frame having multi-stage condensation draft unit - Google Patents
Spinning frame having multi-stage condensation draft unit Download PDFInfo
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- CN1483870A CN1483870A CNA031274463A CN03127446A CN1483870A CN 1483870 A CN1483870 A CN 1483870A CN A031274463 A CNA031274463 A CN A031274463A CN 03127446 A CN03127446 A CN 03127446A CN 1483870 A CN1483870 A CN 1483870A
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- fibre bundle
- yarn
- roller
- auxiliary yarn
- fine spining
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/32—Regulating or varying draft
- D01H5/36—Regulating or varying draft according to a pre-arranged pattern, e.g. to produce slubs
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/72—Fibre-condensing guides
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/74—Rollers or roller bearings
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
- D02G3/367—Cored or coated yarns or threads using a drawing frame
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The frame is equipped with a suction device 25 equipped with a perforation range 35 on a pair of exit rollers of a multi step drafting machine 13, and the suction device 25 provides a guiding plane for sliver to form a condensing step, set to form compact fiber strands by condensing the slivers in the condensing step, and a revolution changing device 52d is equipped on a drafting device 13 or a driving mechanism for drafting device, and revolutions of the individual roller pairs 29 become free from each other in relation to time that induces the compact fiber strands 22, 22' to receive a variable draft in time.
Description
Technical field
What the present invention relates to is a kind of fine spining machine, a kind of especially ring throstle with multistage drafting unit, has an aspirator on its a pair of outlet roller, particularly one is aspirated roller, this aspirator has a punched areas that spreads all over circumference, its (suction roller), particularly between corresponding drafting unit outlet roller and suction roller, constitute a twisting check gap, thereby corresponding roller of twisting check, on its circumference, produce a guide surface along the stretch footpath, be used for here the fibre bundle that two parts or two of a fibre bundle separately are close to supply each other, so that constitute an agglomeration phase, comprised last drawing-off but the fibre bundle that still not have to twist is condensed and/or is bundled to closely on the fibre bundle in this stage.The invention still further relates to the production of spinning twine in addition.
Background technology
Use this class fine spining machine (referring to DE 19500036, DE 196 08697) of previously known, after twisting check gap, all be spun into its oneself single cord at each the root tight fibers bundle that forms on the suction roller.In the situation of production twine, the several threads of Chan Shenging is then twisted into twine like this.
Know also in the outlet roller back of drafting unit from EP 0 444 486 A2 two fiber skein are combined that this drafting unit includes some solid cylinders; Also know by means of a spindle and handle the textile yarn that these fibers become to be similar to twine with the bell-shaped piece that can rotate freely basically.Yet twine's characteristic of the textile yarn of Sheng Chaning is unsafty in this way.
In addition, AT-PS 398 086 is open, on the suction roller that provides in exit, multistage drafting unit, fiber skein is split into two parts, these two parts still combine again in twisting check front, gap then, and therefore the yarn that is spun at last just is made of a fibre bundle usually.
Summary of the invention
Task of the present invention will provide a kind of fine spining machine, and the method for type is pointed out in particularly a kind of ring throstle and a kind of front, and in this way, no matter various lines are to have or do not have twine's characteristic, can both be produced.
The target of independent claims provides the solution of this task.
More embodiment according to fine spining machine of the present invention takes from these independently claims.
Before fibre bundle twisting and reeling, at least one fibre bundle is subjected to time dependent drawing-off and condensed afterwards, and this also is a part of the present invention.In addition, for example from two one ribbon of flyer bobbin, can be closely on aspirator, particularly on the suction roller, and particularly after twisting check gap, they can be each other as twine in conjunction with and twisting, thus, single tight fibers bundle is given and certain spinning twist fully simultaneously.Therefore at least one fibre bundle can be by differently drawing-off.In addition, at least one auxiliary yarn can add on one or a few fibre bundle in the arbitrfary point.
By making fibre bundle and/or strip method closely, the intensity of fibre bundle has increased significantly, and disturbs the filoplume of twine to reduce when producing.Might particularly operate with less number of twists in this case, this causes again increasing produces.
If the distance that two tight fibers bundle binding sites leave twisting check gap 5 and 15mm between, and particularly approximate 10mm greatly, just special desirable especially.The lateral separation of twisting check gap location two tight fibers bundles will 5 and 10mm between, 7mm particularly.Preferably provide a device after twisting check gap, under the ruined situation of fibre bundle closely, this installs and also interrupts another root tight fibers bundle, and this is as by known to above-mentioned EP 0,444 086 A2.
About the present invention, importantly two closely fibre bundle all be separated to guide up to twisting check gap, just just be combined into twine towards the spinning apparatus direction afterwards.
Description of drawings
The present invention for example, describes by accompanying drawing: wherein below:
Fig. 1 is according to the diagrammatic side views of fine spining machine of the present invention;
The diagrammatic front view of theme among Fig. 2 Fig. 1;
The appropriate section front view of Fig. 3 Fig. 1 fine spining machine, it is just operated with a strip that offers the multistage drafting unit, describes with the yardstick that more or less amplifies;
Fig. 4 has the velocity variations device and has the schematic diagram of the drafting unit of coacervation device in the drafting unit outlet;
The schematic diagram of Fig. 5 a on the fiber path direction of yarning position, this is to see vertically that at fine spining machine thus, at least one auxiliary yarn is added on this yarning position;
Fig. 5 b condenses the schematic diagram on the region direction towards the coacervation device place, perpendicular to the longitudinal tensile strain of fine spining machine;
Fig. 6 a, 6b and Fig. 5 a and 5b are in a ratio of some embodiment that changed; With
Fig. 7 a, 7b, 7c guide the further variation of fibre bundle and auxiliary yarn in the coacervation device periphery.
The specific embodiment
According to first aspect of the present invention, what relate to is a fine spining machine, ring throstle particularly, it has at least one with several multistage drafting unit 13 to roller 29, and by one or two flyer bobbin 12 or one or two tube supply fibre bundle, at its a pair of outlet roller 25,26 places or at its a pair of outlet roller 25, arrange to have an aspirator 25 near 26, have the punched areas 35 that spreads all over its circumference above, its (aspirator), along a route segment 15, on its circumference, move with one or a plurality of fibre bundle, generation one is used for the guide surface of these fibre bundles, so that constitute an agglomeration phase, at least one includes last drawing-off in this stage, but the fiber web that does not at least also have basic twisting or do not twist is fully condensed and/or boundling becomes best less than the wide tight fibers bundle 22 of 1mm, 22 ', thus, along the route segment 15 that moves with it, directly radially within the punched areas 35 of aspirator 25, by means of an otch in the general umbrella part 32 that stretches in a circumferential direction, constitute the suction district 33 of a qualification, 33 ', it along the circumferential direction guides this fibre bundle 22,22 ' and/or these fibre bundles, and by means of subsequently spinning apparatus 17, ring spinning apparatus particularly, to this fibre bundle 22,22 closely ' and/or these fibre bundles give counter-clockwise twist, it is characterized in that: arrange to have a velocity variations device 52d at drafting unit 13 and/or at drafting unit driver 50 places, the effect of this device is that single speed to roller 29 is not to work pari passu each other in time, the time dependent drawing-off of so fibre bundle 22,22 ' be subjected to.
According to second aspect of the present invention, related is the fine spining machine that a plurality of components are spinned each other together, these components are to want a fibre bundle 22a drafted and cohesion at least, and be an auxiliary yarn 60a at least, particularly have characteristic as mentioned above, it has the drafting unit and the coacervation device that are used at least one fibre bundle 22a, thus, for fibre bundle provides guiding device, it is characterized in that a handle assists yarn 60a, 60b guide fiber bundle 22a, the guiding device 61 of 22b, these yarns are yarns chemical synthesis and/or flexible and/or smooth and/or that curl, and/or smooth or effect yarn, thus, guiding device 61 is designed to guide member 25: or at least one auxiliary yarn 60a become to be directed to obliquely at least one fibre bundle 22a, perhaps opposite, at least one fibre bundle 22a become to be directed to obliquely at least one auxiliary yarn 60a, and both twisting together each other, thus, with respect to Fig. 5 b, 6b, 7a, b carries among the c in the view that one-tenth is horizontal of roller 25, that is to say in the projection of arranging in these figure, the transporting direction of component is to select like this: the path of these components along them towards spinning apparatus is more and more near (closer to each other), up to their twisting together.
By the approximating component that more or less become to tilt is suitably located, by means of guiding device, at least by a drawing-off and fibre bundle and an auxiliary yarn and the structure of the composite yarn formed can be affected closely.
According to second aspect of the present invention, what relate to is a fine spining machine that component is spinned each other.These components are to want a fibre bundle 22a and at least one auxiliary yarn 60a drafted and cohesion at least, particularly have aforesaid characteristic, it has the drafting unit and the coacervation device that are used for a fibre bundle 22a at least, thus, for fibre bundle provides guiding device, it is characterized in that a handle assists yarn 60a, 60b guide fiber bundle 22a, the guiding device 61 of 22b, these yarns are yarns chemical synthesis and/or flexible and/or smooth and/or that curl, and/or smooth or effect yarn, thus, guiding device 61 is designed to guide member 25: or at least one auxiliary yarn 60a become to be directed to obliquely at least one fibre bundle 22a, perhaps opposite, at least one fibre bundle 22a become to be directed to obliquely at least one auxiliary yarn 60a, and both twist each other, and be not diagonal angle guiding component transporting direction preferably be that axle with transportation roller 25 accurately laterally advances, another component then not therewith axle accurately laterally advance.By to more or less becoming approximating obliquely component to carry out suitable location, by at least one drawing-off and fibre bundle and an auxiliary yarn and the structure of the composite yarn that makes up can be affected closely.
In Fig. 1 to 3, described relevant with cohesion spinning and also particularly with the relevant prior art of twisting of condensing yarn, as the prior art that obtains according to DE 196 19 307.On this basis, by Fig. 4 to 7 the present invention has been described in more detail.
According to Fig. 1 and 2, two flyer bobbins 12 are installed in the frame of not drawing, by means of an import roller 37,37 ', the strip 11 that is spun into from two flyer spindles of two flyer bobbins is entered one to including the three cylinder drafting units 13 in preliminary draft zone 23 and dominant draft zone 24 by directed parallel on turning member 28.At the terminal of preliminary draft district 23 with at a pair of roller 29,29 of dominant draft zone 24,30 ' section start ' illustrate schematically that just all know, it is equipped with band (apron) 30, this band puts in the introducing gap 14 of a pair of outlet roller 25,26.
The bottom roller of this a pair of outlet roller is designed to have the perforation suction roller 25 of rotating shaft 36, this bottom roller includes bigger than all the other rollers substantially diameter, and the drafting unit outlet roller 26 on it and opposite constitutes the last clamping gap 14 of drafting units 13.
These strips of advancing by drafting unit 13 are directed route segment 15 along bending along outlet gap 14, one section circumference around suction roller 25, that is to say, up to the relative roller 27 of twisting check, this relative roller and suction roller 25 constitute the twisting check gap 16 of these fibre bundles together.
According to Fig. 1 and 2, the punched areas 35 of suction roller 25 spreads on the whole circumference of suction roller 25, yet but just stride across an enough big axial width, this also considers fibre bundle 22,22 ' any transverse movement, therefore two fibre bundle 22,22 ' maintenances always check the punched areas 35 between the gap to contact with outlet gap 14 and twisting.
In suction roller 25, exist the umbrella insert 32 of a bending, this insert is concentric with the suction roller, and in the zone of route segment 15, interrupt by rights, it is to arrange so simultaneously: owing to keep vacuum in the inside of umbrella insert 32, so direction of arrow 34 in Fig. 1, produced the air-flow by the punched areas 35 of suction roller 25, this air-flow produces from the outside towards inner radial ground.
Along twisting check gap 16, leave two strip combinations closely in twisting check gap 16 and twist into twine 39, this twine is directed to the traditional ring spinning yarn feeding device 17 of back, it is down rails 38 of common part to whole spindles that this device is equipped with a ring rail 18, rings 19, steel traveler 20, spindle 21 and one, therefore produces the twine that is formed by two fibre bundles twisting on spindle 21.
Total draft in the drafting unit 13 preferably be 80 to 100-doubly, thus, the drawing-off in preliminary draft zone 23 is just in 1.1 to 1.3 times common limit.
As in Fig. 2, seeing, otch in the umbrella part 32 define two suction districts 33,33 ', these two zones axially are being spaced apart, generally extend in the circumferencial direction and/or the fibre bundle direction of transfer 31 of suction roller 25, and converge towards spinning apparatus 17 each other.
According to Fig. 2 for embodiment in, suction district 33,33 ' what axially be close to, and at fibre bundle direction of transfer 31, the drafting unit that is located immediately at suction roller 25 and correspondence exports one of end of 14 back, outlet clamping gap between the roller 26, is positioned at the place that strip 11 enters.At this intra-zone, the big axial distance in suction district 33,33 ' include.Therefrom, this two suction districts 33,33 ' basis is tapered towards the central shaft minute surface that extends between them symmetrically in circumferencial direction, the notch that approximately runs parallel in end regions, or the notch that converges a little each other.
Though according to Fig. 2 for embodiment in, suction district 33,33 ' converge originate in the suction roller 25 a circumferential point 42 (referring to Fig. 2), conform to clamping gap 14, but according to Fig. 3 for embodiment in, corresponding circumferential point 42 ' on fiber direction of transfer 31, but be 14 1 significant circumferential distances from the clamping gap.This is essential, because utilize the design form of Fig. 3, has only an one thread 11 to offer multistage drafting unit 13, and in the back in clamping gap 14 because known suction district 33,33 ' disperse, must be at first by a described one thread form the fibre bundle 22,22 of two separation '.Two defibre bundles 22,22 ' formation obtain the help of an airduct 40, this airduct extends in the diverging region, shows with dotted line in Fig. 1.
Also be according to Fig. 3 for embodiment in, these two tight fibers bundles that form on the suction roller 25 just behind twisting check gap 16 just in conjunction with and twist into spinning twine 39.
According to Fig. 4, arranged a velocity variations device 52d at drafting unit 13 places, this means for engaging is in drafting unit driver 50.The drafting unit cylinder 54a of modern fine spining machine, 54b, 54c be normally by drafting unit motor 50a independently, 50b, and 50c drives, and thus, speed reduction gearing 52b, 52c are applied between these motors and the cylinder.Preferably the preliminary draft location of drafting unit 13 drafting unit cylinder 54a and 54b therebetween is connected on the first transmission device 52b, and the outlet cylinder 54c of drafting unit preferably includes its oneself the CD-ROM drive motor 50c and the transmission device 52c of appointment.Presetting apparatus preferably is connected motor 50a, on the c.
For producing effect yarn or burning strip, drawing-off in the drafting unit 13 is not to keep constant in time, but change like that as mentioned, this can finish like this: the speed of independent drafting unit cylinder is not that the speed with another drafting unit cylinder changes pari passu.This can finish by velocity variations device 52d, preferably realizes that by a differential transmitting linkage this differential transmitting linkage is connected on drafting unit transmission device 52b or the 52c.If being the speed control mechanisms by motor 50b, admission velocity changeable device and/or the inlet velocity that enters differential transmitting linkage device 52d change in time, even drive motor 50b and 50c and they enter the driving shaft constant speed drive of transmission device 52b and 52c, at cylinder 54a, the transmission device 52b of 54b and 54c and the output of 52c also can cause an inconstant in time rotating speed.Such velocity variations device is for example provided by Amsler company.
Differential transmitting linkage device 52d and drafting unit transmission device 52b and 52c are bonded together, and preset other deceleration device 52a can for this differential transmitting linkage device, and a motor 50a are connected on this deceleration device.
Fibre bundle 11 is supplied with by packing 12 as rove or drafting strip, is for example supplied with by a flyer bobbin or a bar tube.Drafting strip 11 is then at three drafting unit cylinder 54a, 54b, and 54c is last drafted, above-mentionedly discloses already mentionedly as getting in touch, and thus, in each situation, a drafting unit cylinder has been distributed a corresponding roller 27.In preliminary draft zone 23, just drawing-offs a little of drafting strip 11, and in dominant draft zone 24, but at least drawing-off 10 times, therefore in drafting process, a little less than the interior fusion of fiber gets more and more.Because the effect of velocity variations device 52d if drafting process is to carry out discontinuously now, this means a kind of interference in fibre stream so, can take by arranging that in the outlet of drafting unit 13 measure of a coacervation device 25 stops this interference.As for embodiment, illustrate a coacervation device in the drawings, it includes a cylindric ventilative drum, as main coacervating part, according to Fig. 4, this coacervating part is installed on the drafting unit cylinder 54c.Yet coacervating part 25 also can be arranged in drafting unit cylinder 54c back, that is to say with this cylinder irrelevant.As what described, must be expressed to fibre bundle on the circumference of coacervation device 25 and/or drafting strip 11 on this coacervation device at some point by additional corresponding roller 27, utilize equally another drafting unit cylinder 54a and 54 this also be essential.The effect that is used to the coacervation device 25 that works from the internal suction air is, under the intermittently approaching situation of strip 11, come out from punched areas 35 at drafting strip 11, be combined into before (ring spinning (ringspinnin8)) yarn, strip is combined, also promptly cohesion is got up, and a ring spinning apparatus 17 is provided for this reason, and it is driven by spindle 21.
According to Fig. 5 a and 5b, other material is introduced to the drafting unit and/or the yarning position on fibre bundle 22 sides, particularly auxiliary yarn 60a, and 60b, they also are called core or heart yarn line.One or a few auxiliary yarn 60a and/or one or a few auxiliary yarn 60b can be arranged, and they are close to operation each other, are provided for fibre bundle 22 or several fibre bundles 22 at the point of stipulating.Auxiliary yarn for example is at bobbin 60a ', on the 60b ', and is to leave these bobbins.According to Fig. 5 a, fibre bundle 22 is advanced by roller or cylinder 54a, 27a, and 54b, the clamping gap between the 27b etc., to the cylinder 54c that has corresponding roller 27c, thus, drafting unit cylinder 54c has formed as suction roller 25.Further described as top, the cohesion zone is moved between the clamping point between the clamping point of the cylinder 54c that has corresponding roller 27c and cylinder 54c and the corresponding roller 27d.As what in Fig. 5 a, illustrate, auxiliary yarn for example can be supplied with the first corresponding roller 27c at drafting unit cylinder 54c place at entrance side, and/or other auxiliary yarn 60b supplies with the corresponding roller 27d at drafting unit cylinder 54c place at entrance side, therefore in first kind of situation, according to Fig. 5 a and 5b, auxiliary yarn itself is embedded in the middle of the fibre bundle 22, and perhaps with regard to the supply at corresponding roller 27d place, the itself side direction is lain on the fibre bundle 22.A thread-carrier and/or thread-carrier device 61 can be provided, it can be according to the double-head arrow activity, as what in Fig. 5 b, point out, at the supply section of assisting yarn 60b1 or 60b2 to drafting unit 13, the auxiliary yarn of this thread-carrier guiding is more or less near fibre bundle 22, and according to Fig. 5 b, this is in cohesion.Therefore in yarn 39 inside, one or a few is in the auxiliary yarn 60a in the twisting process, 60b, and 60b1, the position of 60b2 is can be affected.For the schematic diagram among Fig. 5 a, suppose/be interpreted as auxiliary yarn 60a, 60b runs on the fibre bundle 22 about the center greatly as pointed at Fig. 5 b that is used for auxiliary yarn 60a.Therefore auxiliary yarn 60a and/or 60b are wrapped up by the fibrous structure 22 of twisting, and this fibrous structure is towards the direction operation of spinning apparatus and/or spindle there.In this case, auxiliary yarn 60a, 60b locatees more in the central inner of yarn 39, is batched by the ring spinning apparatus 17 at spindle 21 places equally.Yet, if according to Fig. 5 b, by thread-carrier device 61 is carried out suitable location, auxiliary yarn 60b2 more is directed to the perimeter of coacervation device 25 place's fibre bundles 22, another effect can obtain by such mode so: because the effect of ring spinning apparatus 17 and when yarn 39 twisted, this twisting around fibre bundle 22 of auxiliary yarn 60b2, the schematic diagram according among Fig. 5 b is in the twisting process simultaneously.Simultaneously other auxiliary yarn 60a, and/or other auxiliary yarn 60a, 60b1 can be positioned at more to the inside of the fibre bundle in twisting process 22 just.With different shown in the schematic diagram of Fig. 5 a and 5b, can conceive just after the clamping line 14 and/or drawing between drafting unit cylinder 54c and the last corresponding roller 27d and be arranged in the clamping gap 14 of outlet side after just introduce (entering) and assist yarn, other auxiliary yarn 60a is then taken to fibre bundle 22 in advance, for example in corresponding roller 27c front or in other corresponding roller 27d front.Supply by the auxiliary yarn of appropriate change can realize different effects in the final products that forming.The thread-carrier device 61 that also can move around in spinning process, thus, auxiliary yarn 60b2 can be brought to the inside of fibre bundle 22 more or less, has therefore produced additional effect in yarn 39.Very clear, the fibre bundle with numeral 22 marks in Fig. 5 b just just can converge later at the bite that drafting unit exports between roller 25 and the corresponding roller 27c.
According to Fig. 6 a and 6b, fibre bundle 22a, 22b can be in parallel with each other by suitable rove packing 12a, and 12b supplies with drafting unit 13.The name of different spinning components is similar to the name among Fig. 5 a and the 5b, does not therefore repeat here.As what shown for Fig. 5 a and 5b, several auxiliary yarn 60a, the supply of 60b also can realize.According to Fig. 6 b., " if approximating mode disposes suction sealing 25 to become; they can have a kind of effect so; this effect is exactly that two fibre bundle 22a and 22b itself for example combine at 14 places, clamping gap between suction roller 25 and corresponding roller 27, and they are twisted together at the outlet side in clamping gap 14 owing to the rotation of spindle 21.In addition, Fig. 5 a and 5b described as relating to, auxiliary yarn 60a, 60b is the auxiliary yarn of independence also or just, can be introduced into spinning process, thus, with fibre bundle 22a and additional fibers bundle 22b, produce an effect yarn closely.By a thread-carrier 61 of having described according to the double-head arrow at 61 places of the numeral among Fig. 6 b, auxiliary yarn 60a or auxiliary yarn 60b can do and be displaced sideways, therefore auxiliary yarn is placed on this fibre bundle 22a and/or these fibre bundles 22a that is in the twisting process, the inside of 22b more or less.According to the configuration among Fig. 6 a and the 6b, therefore produce the false twine of a cohesion, this twine is supplemented with auxiliary yarn or heart yarn line.Also can not that fibre bundle 22a and 22b are directed to corresponding drafting unit cylinder 54a, 54b, 25 and/or 54c on, but be directed to different, in case of necessity, be on the cylinder of placement parallel to each other, therefore a fibre bundle 22a includes continuous drafting, and additional fibers bundle 22b bears interrupted drawing-off in drafting unit 13.Fig. 6 b is noted that, the perforation 25a of suction roller 25 is arranged in left side suction sealing 25 " the zone in; other suction sealing 25 " then be in the other suction roller 25 that does not draw punched areas below, auxiliary relatively yarn 60b mirror-symmetrical in the suction insert, and auxiliary yarn 60a, 60b but stops at suction sealing 25 " and the zone between 25 , be positioned at the punched areas 25a outside on drafting unit outlet roller and/or the suction roller 25.Auxiliary yarn 60a, what 60b may relate to is yarn that synthesize and/or flexible and/or smooth and/or that curl, or also can be smooth or effect yarn, and fibre bundle 22a, 22b supplies with or variation ground drawing-off in time continuously.
At Fig. 7 a, 7b, among the 7c, for guiding auxiliary yarn 60a, 60b is to the fibre bundle 22a of drawing-off, and 22b has pointed out other possibility.For example in Fig. 7 a, auxiliary yarn 60a on the left side fibre bundle 22a place is directed into drafting unit outlet roller 25, enters straight suction sealing 25 " near.The guiding of this auxiliary yarn is finished by thread-carrier device 61.A fibre bundle 22b in addition equally also is that continuously or intermittently is drafted, and it twists into yarn 39 towards the direction operation of drafting unit outlet roller together with the component that another root is mentioned.Coacervating part the place or the suction sealing 25 of suction on the roller 25 " can with straight line (referring to Fig. 7 a) or become (referring to Fig. 7 c) move structurally.For auxiliary yarn 60a, this also is suitable for the guiding of 60b.According to Fig. 7 c, two fibre bundle 22a that will condense, 22 ' a can " go up operation at same suction sealing 25.
In contrast, in Fig. 7 b, the second auxiliary yarn 60b is placed on the drafting unit outlet roller 25 at the second fibre bundle 22b place, and perhaps auxiliary yarn 60aa is in middle heart, that is to say the direction operation of the twisting point in the plane of symmetry of this accompanying drawing below clamping line 14.According to Fig. 7 c, also be with Fig. 6 b interrelate and described the same, auxiliary yarn 60a, also may be other auxiliary yarn 60aa, be between the fibre bundle 22a and 22b that is on the drafting unit outlet roller 25, thus, according to double-head arrow, thread-carrier device 61 can influence auxiliary yarn with respect to fibre bundle 22a, the position of 22b.Punched areas on the roller 25 generally is called coacervating part, can concerning whole illustrated embodiments, all extend on the All Ranges of suction roller 25 as seen by Fig. 7 c, and these zones then are subjected to the effect of fibre bundle or auxiliary yarn.
Therefore produce following variation:
-for example according to Fig. 7 a, of being present among plying bobbin 22a and the 22b of heart yarn line locates, thus, suction sealing 25 " operation that is to say as the crow flies, with clamping line 14 transversely or becomes obliquely to move.
-according to Fig. 7 b, every on a yarn attached or core all is in a plying bobbin 22a, on the 22b; And
-according to Fig. 7 c, a single heart yarn line or auxiliary yarn 60a and particularly an other auxiliary yarn 60b are in two plying bobbin 22a, the center between the 22b, thus, the suction sealing can, single ground or together, as the crow flies and/or become (25 ") operation obliquely.
Claims (30)
1. fine spining machine, particularly a kind of ring throstle, it has at least one with several multistage drafting unit (13) to roller (29), supply with fibre bundle by one or two flyer bobbin (12) or one or two tube, at its a pair of outlet roller (25,26) locate or at its a pair of outlet roller (25,26) arrange an aspirator (25) to spread all over its circumference near a punched areas (35) is arranged, its (aspirator) is along a route segment (15), on its circumference, move with one or more fibre bundle, for these fibre bundles produce a guide surface, so that constitute an agglomeration phase, yet at least one fiber web that includes last drawing-off and but also do not have basically or fully twisting of this stage condensed and/or boundling become one preferred less than the wide tight fibers bundle (22 of 1mm, 22 '), thus, with its route segment that moves (15), directly radially within the punched areas (35) of aspirator (25), by means of the otch in the general umbrella part (32) that stretches in a circumferential direction, constitute the suction district (33 of a qualification, 33 '), it along the circumferential direction guides this fibre bundle (22,22 ') and/or these fibre bundles, and utilization spinning apparatus (17) subsequently, ring spinning apparatus particularly, to fibre bundle (22 closely, 22 ') give counter-clockwise twist, it is characterized in that: locate to arrange to have a velocity variations device (52d) at drafting unit (13) and/or at drafting unit driver (50), the effect of this device is that single speed to roller (29) is not to move pari passu each other in time, therefore fibre bundle (22,22 ') is subjected to time dependent drawing-off.
2. be used for fine spining machine that a plurality of components are spinned together, these components are to want a fibre bundle 22a drafted and cohesion at least, and be an auxiliary yarn 60a at least, particularly have characteristic as mentioned above, it has the drafting unit and the coacervation device that are used at least one fibre bundle 22a, thus, for fibre bundle provides guiding device, it is characterized in that a handle assists yarn 60a, 60b guide fiber bundle 22a, the guiding device 61 of 22b, these yarns are yarns chemical synthesis and/or flexible and/or smooth and/or that curl, and/or smooth or effect yarn, thus, guiding device 61 is designed to guide member 25: or at least one auxiliary yarn 60a become to be directed to obliquely at least one fibre bundle 22a, perhaps opposite, at least one fibre bundle 22a become to be directed to obliquely at least one auxiliary yarn 60a, and both twisting together each other, thus, with respect to transportation roller 25 (Fig. 5 b, 6b, 7a, b, c) in the horizontal view, that is to say in the projection of arranging in these figure that the transporting direction of component is to select like this: these components lead to the path of spinning apparatus continuously more and more near (closer to each other), up to their twisting together along them.
3. be used for fine spining machine that a plurality of components are spinned together, these components are to want a fibre bundle (22a) drafted and cohesion at least, and at least one auxiliary yarn (60a), particularly described as top claim, it has the drafting unit and the coacervation device that are used for a fibre bundle (22a) at least, thus, for fibre bundle provides guiding device, it is characterized in that a handle assists yarn (60a, 60b) guide fiber bundle (22a, guiding device 22b) (61), these yarns are yarns chemical synthesis and/or flexible and/or smooth and/or that curl, and/or smooth or effect yarn, thus, guiding device (61) is designed to guide member (25): or at least one auxiliary yarn (60a) become to be directed to obliquely at least one fibre bundle (22a), perhaps opposite, at least one fibre bundle (22a) is directed at least one auxiliary yarn (60a) with being tilted, and both twisting together each other, and be not inclined lead component transporting direction preferably be to become accurately and laterally advance with the axle of transportation roller (25), another component then not therewith axle one-tenth accurately laterally advance.
4. according to a described fine spining machine of front claim, ring throstle particularly, it has at least one multistage drafting unit (13), supply with fibre bundle by one or two flyer bobbin (12) or one or two tube, at its a pair of outlet roller (25,26) locate, arranged an aspirator (35) that has the punched areas (35) that spreads all over its circumference, its (aspirator) is along route segment (15), on its circumference, produce a guide surface, be used for two fiber webs separating fibroreticulate two parts here or be close to guiding each other, so that agglomeration phase of form, yet having comprised last drawing-off at this does not but also have the fiber web cohesion of twisting and/or boundling to become one particularly at the most 1.5 basically or fully, preferably less than the wide tight fibers bundle (22 of 1mm, 22 '), it is characterized in that: along directly radially and these (fibre bundles) route segment (15) of moving together in punched areas (35) inside of aspirator (25), form two suction districts (33,33 '), this is determined by an axial distance, generally along the circumferential direction including the otch that in umbrella part (32), extends, their (suction districts) all guide these fibre bundles (22 separately, 22 ') in one separate (22 with another root, 22), be in a preferred little lateral distance, generally be at circumferencial direction, and also has a unique spinning apparatus subsequently (17), ring spinning apparatus particularly, this device makes two fibre bundles (22 of twine's formula closely, 22 ') twisting each other, and make them produce counter-clockwise twist simultaneously.
5. according to a described fine spining machine of front claim, it is characterized in that: this aspirator is a suction roller (25).
6. according to a described fine spining machine of front claim, it is characterized in that: route segment (15) is checked extension between the corresponding roller (27) in the drafting unit outlet roller (26) and the twisting of correspondence, the corresponding roller (27) here constitutes a twisting check gap (16) with suction roller (25), thus, two closely fibre bundle (22,22 ') come out from twisting check gap (16).
7. according to a described fine spining machine of front claim, it is characterized in that: suction district (33,33 ') comprise at least one limiting mechanism that departs from from the circumferencial direction that aspirates roller (25) at least in part respectively.
8. according to a described fine spining machine of front claim, it is characterized in that: the fiber web of two separation and/or strip (11) are supplied to multistage drafting unit (13) and suction district (33,33 '), start from the outlet clamping gap (14) of multistage drafting unit (13), along fibre bundle direction of transfer (31), perhaps advance in parallel with each other basically, perhaps preferentially roughly advance each other at least with converging.
9. according to a described fine spining machine of front claim, it is characterized in that: supply with individual fibers net and/or independent strip (11) to multistage drafting unit (13), and afterwards in outlet clamping gap (14), in order to form the tight fibers bundle (22 of two separation, 22 '), suction district (33,33 '), at first disperse, circumferential point (42 ') beginning that exists from the fibre bundle (22,22 ') of two separation then is in fibre bundle direction of transfer (31), perhaps advance in parallel with each other basically, perhaps preferably roughly advance at least each other with converging.
10. according to a described fine spining machine of front claim, it is characterized in that: be arranged in fibre bundle direction of transfer (31) and help to form the fibre bundle (22,22 ') of two separation at circumferential point (42 ') hair-dryer (40) before.
11. a described fine spining machine according to the front claim, it is characterized in that: be in end regions inner and in the suction district (33,33 ') of fiber web direction of transfer (31) at least basically the circumferencial direction of suction roller (25) and with extending parallel to each other formation have the sealing of preferred constant width.
12. a described fine spining machine according to the front claim, it is characterized in that: suction district (33,33 ') itself be tapered as funnel, front end at fiber web direction of transfer (31) begins, in case of necessity up to the beginning of the end region of slit-shaped, and this suction zone (33,33 ') preferably converges a little simultaneously.
13. a described fine spining machine according to the front claim, it is characterized in that: suction district (33,33 ') be to become minute surface to form symmetrically with respect to the axle that is between them, and extend at the circumferencial direction and/or the fiber web direction of transfer (31) of suction roller (25).
14. a described fine spining machine according to the front claim, it is characterized in that a velocity variations device (52d), preferably by a differential transmitting linkage that links to each other with drafting unit transmission device (52b or 52c) or by the motor (50a of at least one speed-controllable system, 50c) realize, and this motor with carry out programme controlled mechanism with software and link to each other.
15. a described fine spining machine according to the front claim, it is characterized in that at least one additional material except that fibre bundle (22) offers drafting unit and/or yarning position, auxiliary yarn (60a particularly, 60b), also be called core or heart yarn line, thus, one or more auxiliary yarn (60a) can be guided to fibre bundle (22) or to several fibre bundles (22) at the point that limits, and this fibre bundle is close to each other and advances there.
16. a described fine spining machine according to the front claim, it is characterized in that the cohesion zone between the clamping point of a clamping point that is in cylinder (54c) and corresponding roller (27c) and cylinder (54c) and other corresponding roller (27d), thus, auxiliary yarn can be to drafting unit cylinder (54c) guiding of the inlet side that is positioned at the first corresponding roller (27c), and in case of necessity, auxiliary yarn (60b) in addition can be to drafting unit cylinder (54c) guiding of the inlet side that is positioned at other corresponding roller (27d), therefore the auxiliary yarn itself in first situation is embedded in the middle of the fibre bundle (22), perhaps, itself laterally be on the fibre bundle (22) in the situation of corresponding roller (27d) supply.
17. a described fine spining machine according to the front claim, it is characterized in that one with respect to a horizontal mobilizable thread-carrier of fiber transport direction and/or a thread-carrier device (61), by this device, at the supply centre place of auxiliary yarn (60b1 or 60b2) to drafting unit (13), auxiliary yarn can be more or less closely moves towards the direction of accumulating fiber bundle (22), by this device, one or several auxiliary yarn (60a, 60b, 60b1 60b2) can be affected in the inner position of twist yarn (39).
18. a described fine spining machine according to the front claim, it is characterized in that an auxiliary yarn (60a, 60b), this yarn at the center near fibre bundle (22), therefore auxiliary yarn (60a and/or 60b) is a kind of fibrous structure of being reeled by twisting (22), and this fibrous structure is then moved towards the direction of spinning apparatus and/or spindle.
19. a described fine spining machine according to the front claim, it is characterized in that a thread-carrier device (61), by this device, auxiliary yarn (60b2) can move near the perimeter that is positioned at the fibre bundle (22) of coacervation device (25), therefore obtain a kind of effect, that is: when the twisting of carrying out yarn (39) is handled, because the effect of ring spinning apparatus (17), auxiliary yarn (60b2) itself be placed on fibre bundle (22) around, fibre bundle is then simultaneously in twisting process.
20., it is characterized in that (25 "), this suction roller then moves for suction sealing in coacervating part place or suction roller (25) on path straight or that tilt according to a described fine spining machine of front claim.
21. with fine spining machine with at least one multistage drafting unit (13), ring throstle particularly, produce the method for spinning twine, fibre bundle is supplied with by one or two flyer bobbin (12) or one or two tube in this multistage drafting unit, at its a pair of outlet roller (25,26) located to arrange a band to spread all over the aspirator (25) of the punched areas (35) of its circumference, its (aspirator) is along route segment (15), on its circumference, produce a guide surface and be used for two fiber webs separating fibroreticulate two parts here or be directed being close to each other, so that agglomeration phase of form, yet having comprised last drawing-off at this does not but also have the fiber web cohesion of twisting and/or boundling to become one particularly at the most 1.5 basically or fully, preferably less than the wide tight fibers bundle (22 of 1mm, 22 '), it is characterized in that: along and these (fibre bundles) route segment (15) of moving together, punched areas (35) inside in aspirator (25) directly radially forms two suction districts (33,33 ') or be a suction district, they are to be limited by an axial distance, it includes the otch of the extension in umbrella part (32) usually at circumferencial direction, each all makes this fibre bundle (22 their (suction districts), 22 ') in one, usually along the circumferential direction with a little preferred lateral separation and another fibre bundle (22 ', 22) separate, and also has a unique spinning apparatus subsequently (17), ring spinning apparatus particularly, this device is to one, in case of necessity, the tight fibers bundle (22 of two twine's formulas, 22 ') twisting together, and particularly give they and/or it a counter-clockwise twist according to this device of a while of front claim, it is characterized in that: locate to provide a velocity variations device (52d) at drafting unit (13) and/or drafting unit drive unit (50), the effect of this device is, independent roller is not to turn round pari passu each other to the speed of (29) in time, therefore fibre bundle (22,22 ') bears a time dependent drawing-off.
22., it is characterized in that: used a suction roller (25) as aspirator according to the described method of front claim.
23. a method of operating fine spining machine according to the previous methods claim, it is characterized in that: extension between the corresponding roller (27) is checked in this drafting unit outlet roller (26) and twisting in correspondence of route segment (15), and this corresponding roller constitutes to twist with suction roller (25) checks gap (16).
24. a method of operating fine spining machine according to the previous methods claim, it is characterized in that at least one auxiliary yarn (60a, 60b) or be single auxiliary yarn, they can supply in the spinning process, by this spinning process, form an effect yarn closely with first fibre bundle (22a) and additional fibers bundle (22b).
25. a method of operating fine spining machine according to the previous methods claim, it is characterized in that: before in twisting check gap (16), guiding fibre bundle (22,22 ') guiding that is separated from each other, and just after twisting check gap (16) just towards the direction of only spinning apparatus (17), with another fibre bundle in conjunction with and twist into the plying wire.
26. operation is used to treat spin each other the method for the fine spining machine of a plurality of components together, this component includes at least one fibre bundle (22a) for the treatment of drawing-off and cohesion, and at least one auxiliary yarn (60a), particularly have feature as mentioned above, have a drafting unit and a coacervation device of being used at least one fibre bundle (22a), thus, the guiding device that is used for fibre bundle is provided, it is characterized in that one is used for auxiliary yarn (60a, 60b) guide fiber bundle (22a, guiding device 22b) (61), these yarns are yarns chemical synthesis and/or flexible and/or smooth and/or that curl, and/or smooth or effect yarn, thus, guiding device (61) and guide member (25) are so designs, that is: perhaps at least one auxiliary yarn (60a) becomes to be directed to obliquely at least fibre bundle (22a), perhaps opposite, at least one fibre bundle (22a) is by at least one auxiliary yarn (60a) that become to lead obliquely, and both twist together, thus, the transporting direction of component is so to select, that is: (Fig. 5 b in become horizontal view with the axle of transportation roller (25), 6b, 7a, b, c,), just in the projection of disposing in these figure, these components lead to the path of spinning apparatus along them, constantly more and more near (closer to each other), together up to their twisting.
27. particularly according to a method of operating fine spining machine of previous methods claim, the method utilization will spin component together each other, this component includes at least one fibre bundle (22a) of wanting drawing-off and cohesion, and at least one auxiliary yarn (60a), it is characterized in that being fibre bundle (22a, 22b) (60a, 60b), this auxiliary yarn is synthetic and/or elasticity and/or glossily and/or the yarn that curls to the auxiliary yarn of supply.And/or glossily or effect yarn, thus, perhaps at least one auxiliary yarn (60a) become to lead obliquely at least one fibre bundle (22a), perhaps opposite, at least one fibre bundle (22a) is by at least one auxiliary yarn (60a) that become to lead obliquely, and both are twisted together, be not thus the diagonal angle guiding component transporting direction preferably be to become accurately with the axle of transportation roller (25) laterally to advance, another component then not therewith axle one-tenth accurately laterally advance.
28. according to a method of operating fine spining machine of previous methods claim, it is characterized in that guiding at least one auxiliary or heart yarn line (60a, b) to a plying bobbin (22a, 22b) on.
29. according to a method of operating fine spining machine of previous methods claim, it is characterized in that two plying of at least one auxiliary yarn (60b) guiding bobbins (22a, between 22b) in the heart.
30. use according to a described fine spining machine of claim 1 to 21 and/or spinning twine and/or the false twine that produces according to the described method of claim 22 to 30.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002136450 DE10236450A1 (en) | 2002-08-08 | 2002-08-08 | Spinning machine with multi-stage drafting compression unit has a speed control unit linked to the drafting roller drive |
DE10236450.8 | 2002-08-08 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNA2007101423037A Division CN101126185A (en) | 2002-08-08 | 2003-08-07 | Spinning machine with multi-stage drafting compression unit |
Publications (1)
Publication Number | Publication Date |
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CN1483870A true CN1483870A (en) | 2004-03-24 |
Family
ID=30469610
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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CNA2007101423037A Pending CN101126185A (en) | 2002-08-08 | 2003-08-07 | Spinning machine with multi-stage drafting compression unit |
CNA031274463A Pending CN1483870A (en) | 2002-08-08 | 2003-08-07 | Spinning frame having multi-stage condensation draft unit |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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CNA2007101423037A Pending CN101126185A (en) | 2002-08-08 | 2003-08-07 | Spinning machine with multi-stage drafting compression unit |
Country Status (5)
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JP (1) | JP2004068243A (en) |
CN (2) | CN101126185A (en) |
CH (1) | CH697244B1 (en) |
DE (1) | DE10236450A1 (en) |
IT (1) | ITMI20031611A1 (en) |
Cited By (4)
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CN104195683A (en) * | 2014-08-05 | 2014-12-10 | 海宁市富利达纺织有限公司 | Negative pressure type tight siro spinning machine |
CN104451980A (en) * | 2014-12-30 | 2015-03-25 | 张家港市金纱纺织有限公司 | High-count siro spinning spandex yarn bundling method and production devices thereof |
CN106958057A (en) * | 2015-11-11 | 2017-07-18 | 里特机械公司 | Method and apparatus for producing flexible core yarn |
CN111519296A (en) * | 2020-04-14 | 2020-08-11 | 江南大学 | On-line detection device and method for distribution of speed change points in drafting zone |
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DE10344163B9 (en) * | 2003-09-22 | 2005-06-02 | Cetex Ingenieurgesellschaft für Maschinenbau mbH | Method and device for producing coregarn or cortex yarn |
DE102005013765A1 (en) * | 2005-03-22 | 2006-09-28 | Maschinenfabrik Rieter Ag | Method and device for producing coregarn |
CN101492843B (en) * | 2008-12-31 | 2010-05-12 | 武汉科技学院 | Positioning spinning method of embedded system |
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CH704133A2 (en) * | 2010-11-26 | 2012-05-31 | Rieter Ag Maschf | Device for compressing a sliver on a spinning machine. |
DE102011055298A1 (en) * | 2011-11-11 | 2013-05-16 | Deutsche Institute Für Textil- Und Faserforschung Denkendorf | Thread guiding device for a roving spinning spinning machine |
CN103498230A (en) * | 2013-10-22 | 2014-01-08 | 重庆三峡技术纺织有限公司 | Production technology of siro compact spinning covering yarn |
DE102014011210A1 (en) * | 2014-07-29 | 2016-02-04 | Saurer Germany Gmbh & Co. Kg | Process for producing an air-spun yarn |
DE102016106207A1 (en) * | 2016-04-05 | 2017-10-05 | Maschinenfabrik Rieter Ag | Absorbent body for a pneumatically operated fiber compression device and thus equipped spinning machine |
DE102017124659B3 (en) * | 2017-10-23 | 2019-02-07 | Südwolle GmbH & Co. KG | Method and device for producing a yarn |
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DE822220C (en) * | 1949-02-17 | 1951-11-22 | Heinrich Huk | Device on drafting systems of spinning machines for the production of dimpled yarn |
FR2520389A1 (en) * | 1982-01-26 | 1983-07-29 | Asa Sa | DEVICE FOR STRETCHING, CONDENSING AND TRANSPORTING A FIBER BIT DURING A SPINNING OPERATION |
DE19619307B4 (en) * | 1996-04-12 | 2010-04-01 | Maschinenfabrik Rieter Ag | Spinning machine with a suction at the output of a multi-stage drafting system and method for producing a spun yarn and then produced spun yarn |
DE19860201B4 (en) * | 1998-12-24 | 2008-12-18 | Maschinenfabrik Rieter Ag | Device for spinning a thread of several thread components |
CN1263175A (en) * | 1999-02-12 | 2000-08-16 | 日清纺织株式会社 | Production method of composite yarn and its composite yarn |
-
2002
- 2002-08-08 DE DE2002136450 patent/DE10236450A1/en not_active Withdrawn
-
2003
- 2003-04-17 CH CH7052003A patent/CH697244B1/en not_active IP Right Cessation
- 2003-08-05 IT ITMI20031611 patent/ITMI20031611A1/en unknown
- 2003-08-07 CN CNA2007101423037A patent/CN101126185A/en active Pending
- 2003-08-07 CN CNA031274463A patent/CN1483870A/en active Pending
- 2003-08-08 JP JP2003206914A patent/JP2004068243A/en not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104195683A (en) * | 2014-08-05 | 2014-12-10 | 海宁市富利达纺织有限公司 | Negative pressure type tight siro spinning machine |
CN104195683B (en) * | 2014-08-05 | 2016-08-17 | 海宁市富利达纺织有限公司 | A kind of negative pressure type compact SEILE textile machine |
CN104451980A (en) * | 2014-12-30 | 2015-03-25 | 张家港市金纱纺织有限公司 | High-count siro spinning spandex yarn bundling method and production devices thereof |
CN106958057A (en) * | 2015-11-11 | 2017-07-18 | 里特机械公司 | Method and apparatus for producing flexible core yarn |
CN106958057B (en) * | 2015-11-11 | 2021-09-24 | 里特机械公司 | Method and device for producing elastic core yarn |
CN111519296A (en) * | 2020-04-14 | 2020-08-11 | 江南大学 | On-line detection device and method for distribution of speed change points in drafting zone |
Also Published As
Publication number | Publication date |
---|---|
CH697244B1 (en) | 2008-07-31 |
JP2004068243A (en) | 2004-03-04 |
DE10236450A1 (en) | 2004-02-19 |
ITMI20031611A1 (en) | 2004-02-09 |
CN101126185A (en) | 2008-02-20 |
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