CN1212737A - Reducing end breaks in spinning or twisting of yarn - Google Patents

Reducing end breaks in spinning or twisting of yarn Download PDF

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Publication number
CN1212737A
CN1212737A CN97192676A CN97192676A CN1212737A CN 1212737 A CN1212737 A CN 1212737A CN 97192676 A CN97192676 A CN 97192676A CN 97192676 A CN97192676 A CN 97192676A CN 1212737 A CN1212737 A CN 1212737A
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CN
China
Prior art keywords
yarn
jaw
moving belt
twist
fibre bundle
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Pending
Application number
CN97192676A
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Chinese (zh)
Inventor
巴里·V·哈罗菲尔德
格拉姆·M·阿博特
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Commonwealth Scientific and Industrial Research Organization CSIRO
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Commonwealth Scientific and Industrial Research Organization CSIRO
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Publication of CN1212737A publication Critical patent/CN1212737A/en
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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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist
    • D02G1/08—Rollers or other friction causing elements
    • D02G1/085—Rollers or other friction causing elements between crossed belts
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/02—Spinning or twisting machines in which the product is wound-up continuously ring type
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/92—Spinning or twisting arrangements for imparting transient twist, i.e. false twist

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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

A method and apparatus for twisting a travelling fibre assembly (7) to form a twisted yarn (9), in which the strand is drawn from nip means (14) and rotated to insert twist into the yarn. Downstream of the nip, the twisted yarn is drawn past and in engagement with at least one run (34 or 35) of travelling continuous belt means (30) so that a surface or surfaces of the belt means rotates the yarn and inserts a false twist into the yarn towards the nip. The surface(s) is convexedly curved in the direction of travel of the yarn, and the yarn engages the surface(s) over a total curved line contact which is sufficient to materially reduce the transmission of tension in the yarn past the surface(s) towards the nip.

Description

In spinning or twisting process, reduce the broken end of yarn
This invention relates to spinning and twisted yarn, particularly to the problem of the frequent broken end of ring spinning.
It is well-known that an incidence is interrupted in ring spinning, occurs in the zone between front draft roller and thread-carrier at first, depends on the tension force and the level of twist of yarn.The translator unit of the tension force that is produced by spindle and air ring reduces by thread-carrier, but according to observations, the pincers mouth from thread-carrier to the front draft roller, level of twist is tending towards reducing.The twist in this zone can produce fluctuation in the part.Xiang Guan factor is the cross section of yarn and the fiber number in the cross section in addition, and they also change along yarn direction.When level of twist, cross section and fibre density were lower than the certain level that is related to yarn tension at present, broken end will take place.
Past is that the scheme that reduces the broken end generation all concentrates on the yarn twist level on the increase thread-carrier or reduces the tension force transmission of drawing rollers forward, and the purpose of its summary is exactly to improve the balance that the twist one tension force is distinguished in spinning.A kind of method is to add false twisting with the spinning district of rotary thread-carrier between thread-carrier and front draft roller to yarn, can increase this regional level of twist like this.The another one scheme is, as in June, 1979, W.Kampen is disclosed in 60,433 " Melliand Textilber " (english version), and thread-carrier comprises a friction tube by the magnetic driving that is connected with spindle.In addition, disclosed at " broken end of ring throstle " that ATIRA (Ahmedabad Textile Industry ' s Research Association) delivered in 1974 by TA Subramanian etc., pipe is by the driven rotary of yarn own.An independent agency also is provided in addition.
The United States Patent (USP) 4384448 of investing Wilkie proposes to adorn a pneumatic false twister between thread-carrier and front draft roller.Find all the just U.S. 2590374 and No. 2718111 patents in the various further form of the mechanical type false twister of this position with H.M.Brown, promptly being published in exercise question on " Textile Bulletin " in 1949 is the report of " new technology that Clemson Dean proposes ", and is published in " Textile Industries " the 96th page in 1954 and goes up exercise question relevant for " reducing broken end " article.These false twisters are the disk of various directions and shape at first, but No. 2590374 patents of the U.S. have comprised an embodiment (Fig. 7 and Fig. 8), and it has utilized approaching and just move an effect band on thread-carrier.
When the thread-carrier of these rotations plays the time spent of doing that increases level of twist, in the transmission that also helps reducing tension force in some cases, concerning each spindle, entry and separator is difficult, comprise huge capital cost.
Other method purpose is to reduce spinning tension, and it improves on the top of spindle, is referred to as spindle top.The method is published in last the 150th page (1963) of " Textile-Praxis " (international) by Schenkel etc., generally comprises part and all eliminates the air rings that produced by Yarn winding device.Spindle top does not reach effective commercial use, may be again because price and complicated reason.
Diverse ways whatsoever, the triangle or with the spinning of compression triangle, fiber can more closely be strapped in together of need not spinning, like this, utilizing gas to compress in the yarn forming process increases yarn strength.This system is by Betz, " innovation of RING SPINNING " that D delivers in " Melliand International " (1995), the 1st page: be described among the 30-34.
An object of the present invention is, in the application of RING SPINNING, reduce the generation of breaking end at least from efficient and economic attractiveness two aspects.
The present invention comes from the potential utilization of the horizontal effect band among Fig. 7 and Fig. 8 in the above-mentioned United States Patent (USP) 2590374, promptly in this article as false twister, but it is further improved.Angular contact in patent between yarn and belt surface is very little, reflects by the thread path angular displacement of belt little.The object of the invention, on the one hand, reducing broken end not only can be by the method for carrying out false twisting in the spinning district, also can add the transmission that reduces spinning district tension force in fact, utilize the advantage of Capstan theory and Amontons law like this, promptly angular contact is big more, it is few more to transmit tension force, can achieve the goal.
Fig. 7 of United States Patent (USP) 2590374 and the structure of Fig. 9 have the another one advantage.Belt is installed must be very near thread-carrier, to avoid the too much offset interference of horizontal moving belt surface to the yarn path.Second aspect, by the mode of arranging yarn to contact with two trip segment of moving belt device continuously, this restriction has been avoided in this invention, balance be offset and drag.
Therefore, first aspect, this invention provides the method that forms twisted yarn to the fibre bundle twisting in transmitting, fibre bundle is pulled out from jaw, rotation and impose turn, from here, in the jaw downstream, the yarn of twisting is pulled process, and contact with at least one trip segment of moving belt device, like this, one or more moving belts surface rotary yarn, and impose false twisting for yarn towards jaw, there, along the described surface of yarn direction of transfer is protruding curved surface shape, and yarn contacts on a whole piece curve fully with described surface, and it is enough to reduce effectively the tension force transmission of yarn through (these) surface the time towards jaw.
First aspect, the present invention also provides in order to form the device of twist yarn to the fibre bundle twisting in transmitting, and comprising:
The conveyer that comprises an outlet jaw;
Twisting apparatus can rotate, and fibre bundle is pulled out from jaw, and twisting forms twist yarn to fibre bundle, also has;
The moving belt device, it is a kind of continuous moving belt, forms a pair of trip segment, and when twist yarn was pulled through trip segment, wherein at least one trip segment contacted with twist yarn, and the surface of moving belt is with regard to rotary yarn and add false twisting for the yarn towards jaw;
Surface described here is protruding curved surface at the yarn direction of transfer, why so design, be because in the operation of device, when yarn process surface, on a whole piece curve, contact fully, thereby be enough to yarn the tension force transmission when process (these) surperficial of effectively reduction towards jaw with this surface.
Second aspect, the present invention also provides the fibre bundle twisting in will transmitting to form the method for twisted yarn, wherein fibre bundle is pulled out from jaw, rotation imposes turn, in the jaw downstream, twist yarn be pulled through and and continuously two trip segment moving in opposite direction of moving belt contact, so moving belt surface rotary yarn also imposes false twisting to the yarn towards jaw, corresponding trip segment yarn and deflection drag and are able to balance effectively.
In second aspect, it is a kind of in order to form the device of twist yarn to the fibre bundle twisting in transmitting that the present invention also provides, and comprising:
The conveyer that comprises an outlet jaw;
Twisting apparatus can rotate, and fibre bundle is pulled out from jaw, and twisting forms twist yarn to fibre bundle, also has;
The moving belt device, it is a kind of continuous moving belt, forms a pair of trip segment, when twist yarn is pulled through the trip section, just contacts with two trip segment, the surface of moving belt is with regard to rotary yarn and add false twisting for the yarn towards jaw; The skew of corresponding trip segment yarn drags is in operation in fact just offset.
Twist yarn meets by preferably traction process and with two trip segment with the different directions motion of moving belt, through the back side of a described trip segment and the front of another trip segment.
This installs preferably a kind of spinning apparatus, and its transport comprises drafting system, and twisting apparatus is a spindle, in order to the coiling yarn, and is rotatable, by it yarn is imposed turn.
Further, moving belt so designs continuously, and its each trip segment moving direction is all laterally staggered by the direction that spindle draws with yarn, for example is into 90 degree basically.
Fibre bundle is the staple fibre bundle preferably, and is more useful for hair rove and wool top.
Typically, spinning apparatus also comprises thread-carrier, the pigtail shape twizzle between spindle and jaw for example, and rings and steel traveler are in order to be wound up into yarn on the spindle.
Belting preferably is installed between thread-carrier and the jaw continuously.
Best, in the fine spining machine of many ingots, single moving belt is in order to contact with threads.
Best, provide the transmission that can regulate moving belt and/or its location and with the device of the contact performance of yarn.
The present invention will further describe by an example further combined with accompanying drawing, wherein:
Fig. 1 is the perspective view of single ingot ring throstle with embodiment of apparatus of the present invention, is illustrated as duty;
Fig. 2 is corresponding simple cross-sectional view; With
Fig. 3 is a sketch of using A Mengdengshi law of friction (Amtonton ' s Law).
Comprise partly that as the spindle of figure the conveying or the drawing-off part 12 of a conventional profile, this part comprise two aprons 11 and have the front draft roller 13 of exporting jaw 14.Batching spindle 16 has a rings 19 and steel traveler 18, and pigtail shape thread-carrier 20 is usually between jaw and spindle.During operation, rove 7 drafted part 12 drawing-offs, the spindle of rotation pulls out drafted yarn 8 from jaw 14, and is wound up on the spindle 16 as yarn 9, adds the twist by rotation to yarn simultaneously.This twist gradually reduces and the meeting localised waving, is transported to jaw 14 backward.The nature yarn has tension force, and the centrifugal generation of ballooning of yarn by 19 of pigtail shape thread-carrier 20 and rings increases.
Between jaw 14 and thread-carrier 20, be false twisting belting 25.This device comprises that a section is circular, and a kind of surface have suitable friction elastomeric material be with 30 continuously.Be with 30 to be installed on corresponding transmission and the idler 32,33, define a plane of orientation, the transport path of the crosscut yarn that it tilts, promptly the jaw 14 of drawing rollers 15 arrives thread-carrier 20 in the past, make the front that is positioned in direct pipeline with 30 up stroke section 34, down stroke section 35 is in the back of yarn pipeline.By this design, and its circular cross section, the surface of belt is convex at yarn direction of transfer and transmission plane thereof.
Amended spinning part is to draw yarn like this, and yarn is pulled out from the front of belt passing round up stroke section 34 and the back side of down stroke section 35, therefore forms two curves that contact with band.If spindle and band move (machine driving is not carefully stated at this) this moment, corresponding tape travel section surface and yarn movement direction are laterally staggered, also promptly become 90 degree with yarn, thereby rotary yarn are adding false twisting for yarn on the direction of jaw 14.Accumulate above up stroke section 34 by the twist that two tape travel sections add.So just increased the yarn twist in the spinning district 31 above with 30, but the average level of twist that does not have the yarn on spindle there is any substantial influence.And then the line of the trip segment of each band and yarn contacts and has reduced the transmission of tension force in the spinning district effectively.The increase of level of twist and the reduction of tension force give all above conveyer belt that the reduction Yarn break has played substantial effect in the spinning district 31.
The reduction of tension force can obtain reflecting card from A Mengdengshi law of friction and Capstan theory, when being looped around the rope slippage on reel or the cylinder, and warp tension ratio T 1/ T 2Value will be above index μ θ, μ is the coefficient of friction of rope and mandrel surface here, θ is the relative angle of the axis of contact arc (a radially angle).The Capstan theory is thought in addition: around reel (or free-standing cylinder), corresponding less action force just can balance has the bigger active force of big cornerite.
According to the Amontons law, revise the setting that adds the false twisting belt, with reference to Fig. 3, the relation of yarn tension and cornerite is as follows
T 2/T 1=e μθ1＆T 3/T 2=e μθ2
T 3/ T 1=e μ (θ 1+ θ 2)Therefore cornerite (θ 1+ θ 2) increases, T 3/ T 1Also increasing (also is T 1And T 3Difference increase).So cornerite is big more, the yarn tension in the spinning district reduces also big more.This prediction is verified by practice.
The curve contact has reduced the tension force transmission of yarn by device 25 time effectively.The reduction amplitude is at least on average 30%.Giving the 25tex wool yarn, ingot speed 10,000rpm during drawing-off 14.5 tests, can control in the test, does not have device 25, and yarn tension is 20cN.Adopt device 25, the thread path angle excursion (also being cornerite) that is adjusted in two tape travel section places is 2 * 33 °, 56 °+47 °, and 77 °+62 °, record yarn tension and be respectively 9cN, 10cN and 3cN.Can draw according to above formula, μ is also depended in the tension force minimizing, therefore also depends on the material of yarn and band.
What should be mentioned that is: twisting belting 25 is enough to retardance rather than serious the interference doffed.
Although principle according to first aspect present invention, for a contact tape travel section and to reach twisting and reduce tension force be feasible to realistic scale only, although and this kind contact is for simpler than the mode of being narrated for the purpose of entrying, to contact three aspects of consideration with two trip segment be effective and adopt.Tension force reduces two contact positions, and is adding also increase to some extent on the yarn of false twisting.Corresponding trip segment, because they move in the opposite direction, the skew of offsetting yarn in fact drags, and has therefore also eliminated any laterally offset of yarn movement.In single contact scheme, must the laterally offset of yarn be retrained to some extent, although contact also is necessary for the two-pass section in the process of entrying for this.Can find more that further adopting the many places contact of two above trip segment bands is favourable under certain conditions.
The special economy of described mode is can adopt single continuous band when the Spinning Frame complex yarn, and it and prior art proposal the earliest form a sharp contrast, and the latter reaches false twisting with reducing tension force independent device to be installed on each spindle.Certainly must load onto guide wheel or other stabilising arrangements at regular intervals along the tape travel section.
Certainly false twisting belting 25 is bound to bring some at random or useful feature.For example, can perhaps make it discontinuous operation, for example stop-Kai or advance-retreat, thereby obtain unique spinning effect in order to change with 30 translational speed.Discontinuous operation with 30 for example adopts stepper motor, giving bifilar yarn, as Sirospun (trade mark) yarn, just utilizes intermittently twist transmission effect when increasing the twist.Certainly in general, the present invention can be used for any multiply spinning, twisting or plying.
Can regulate with 30 plane and the angle between the direct conveyer line of yarn between front draft roller and the thread-carrier in order to the contact angle of control band and yarn, thereby controlled the transmission of yarn tension.Adjustment of tonicity has purposes like this, for example, and in order to compensation yarn tension variation during winding shaping on spindle.Also can control with 30 horizontal cross section diameter or skin-friction coefficient that tension force reduces and the balance of the twist between increasing by change.Distance between the tape travel section also can be adjusted, for example by adopting the adjustable tension belt pulley.
In special embodiment, can bring with false twisting yarn is carried out surface treatment, for example by last cured, humidification, lubricated or painted.
If specific (special) requirements is arranged, the direction that changes band reduces the twist and tension force simultaneously in the yarn upstream.
Another kind of mode is that band down stroke section vertically is put in pigtail shape twizzle top, has therefore increased to greatest extent from twizzle twist transmission upstream, as long as it can be moved on one side so that doff.This conveyer line is represented with dotted line 8 ' in Fig. 2.
A kind of further effectively the improvement is to the thread path orientation, like this and or approximate at least and the front draft roller nip is tangent, therefore make turn transmit, thereby reduced end breakage rate at vicinity jaw place to the yarn top.By installing 25 modifications that reach easily the path: visible yarn is raised in contiguous tangent position in Fig. 1.Position and configuration by further adjusting device 25 can reach more close tangent position.
Should be appreciated that the present invention spins the ring spindle yarn spinning of weak point in the single thread and long fiber degree in combing, or more widely to wool spinning or half combing spinning, to general plying, and especially to short and long fiber degree Sirospun technology, also have to simple ring twisting operation, all have widely and use.
Generally speaking, adopt the present invention will reduce Yarn break, thereby make and under given end breakage rate situation, can realize higher ingot speed, perhaps under given end breakage rate situation with lower twist spinning.On the contrary, under given yarn count or level of twist situation, reduce yarn breakage.The present invention makes under the situation of given yarn count, ingot speed and level of twist, can use low-qualityer fibrous raw material spinning, and makes and can successfully spin qualified yarn at the yarn section with less fibre bundle.
Have found that described embodiment, and perhaps the present invention can cause generally speaking in the twist in yarn formation district and the variation (being front draft roller place) of tension force, thereby cause distributing more even along the twist of yarn.The reduction that this will be of value to yarn and fabric barriness is of value to creasing and the minimizing of stitch distortion on the knit goods made from strand.
Can also see,,, will reduce fiber depilation and scared yarn in less spinning district as what estimate in the report formerly.
Should be understood that also " comprising " or be equal to " comprising " as the phraseological variation in this used it, it should not be regarded as the exception of other factors or feature.

Claims (26)

1. twist the method that makes it to become twist yarn for the fibre bundle in transmitting for one kind, wherein fibre bundle is pulled out from jaw, rotation and add that turn forms yarn, in the jaw downstream, twist yarn is pulled process and contacts with the trip segment of at least one continuous moving belt, the surperficial rotary yarn of this belt transect also adds false twisting for the yarn towards the jaw direction, surface described here is protruding curved surface at the yarn direction of transfer, yarn contacts on a whole piece curve fully with described surface, so just is enough to reduce in fact yarn by the tension force transmission of surface towards jaw.
2. a kind of method according to claim 1 is characterized in that, when twist yarn be pulled through and and when going up two trip segment that move with different directions and meet, it is the front through described one of them trip segment back side and another trip segment.
3. a kind of method according to claim 1 and 2 is characterized in that, fibre bundle is a thread fibre bundle here, and described method comprises this thread fibre bundle is spun into the twist yarn that is wound up on the spindle, and spindle rotation is also twisted to yarn.
4. according to claim 1,2 or 3 described a kind of methods, it is characterized in that the section of band is circular basically continuously.
5. according to aforesaid any claim, it is characterized in that the fibre bundle here is staple fibre bundle, preferably wool.
6. in order to give the device of the fibre bundle twisting formation twist yarn in transmitting, comprising:
The conveyer that comprises an outlet jaw
Twisting apparatus can rotate, and fibre bundle is pulled out from jaw, and twisting forms twist yarn to fibre bundle, also has
The moving belt device, it is a kind of continuous moving belt, forms a pair of trip segment, contacts with at least one trip segment when twist yarn is pulled through trip segment, the surface of moving belt is with regard to rotary yarn and add false twisting for the yarn towards jaw;
It is characterized in that, described surface is protruding curved surface at the yarn direction of transfer, why this belting so designs, be because in the operation of described device, when yarn the time contacts with this surface fully through described surface, thereby be enough to effectively reduce the tension force transmission of yarn the time through described surface towards jaw on a whole piece curve.
7. device according to claim 6 is characterized in that, two trip segment of belting move in the opposite direction, and staggered with thread path, and yarn is through the back side of a described trip segment and the front of another trip segment.
8. according to claim 6 or 7 described devices, it is characterized in that described device is a kind of spinning apparatus, wherein conveyer comprises drafting system; And twisting apparatus is a kind of spindle, and it is rotatable, and yarn and twist to yarn is used for reeling.
9. device according to claim 8 is characterized in that, and then comprises a kind of thread-carrier between spindle and jaw, and rings and steel traveler get in order to yarn is wound up into spindle.
10. device according to claim 9 is characterized in that, described continuous moving belt device is between thread-carrier and the jaw.
11. any described device according to claim 6 to 9 is characterized in that the section of described continuous moving belt is circular basically.
12. any described device according to claim 6 to 11 is characterized in that, moving belt so designs continuously, and the moving direction of its each trip segment is all laterally staggered by the direction that spindle draws with yarn, also promptly is into 90 degree basically.
13. any described device according to claim 6 to 12 is characterized in that, in the fine spining machine of many ingots, described moving belt device is exactly a single moving belt, in order to contact with threads.
14. any described device according to claim 6 to 13 is characterized in that, also comprise in order to regulating moving of moving belt, and/or its location with the device of the characteristic that contacts of yarn.
15. the fibre bundle twisting in will transmitting forms the method for twist yarn, wherein fibre bundle is pulled out from jaw, rotation and twist into yarn, in the jaw downstream, twist yarn is pulled through also contacting with two trip segment with the different directions motion of continuous moving belt, the surperficial rotary yarn of moving belt imposes false twisting also for the yarn towards jaw like this, and the skew of the yarn of corresponding trip segment drags is basically offset.
16. method according to claim 15 is characterized in that, twist yarn is pulled through the back side of a described trip segment and another front.
17., it is characterized in that described fibre bundle is a thread fibre bundle according to claim 15 or 16 described methods, described method comprises this thread fibre bundle is spun into the twist yarn that is wound on the spindle, spindle rotation is also twisted to yarn.
18., it is characterized in that the section of the continuous moving belt here is circular basically according to claim 15,16 or 17 described methods.
19., comprising in order to give the device of the fibre bundle twisting formation twist yarn in transmitting:
The conveyer that comprises an outlet jaw
Twisting apparatus can rotate, and fibre bundle is pulled out from jaw, and twisting forms twist yarn to fibre bundle, also has
The moving belt device, it is a kind of continuous moving belt, forms a pair of trip segment, contacts with two trip segment when twist yarn is pulled through trip segment, the surface of moving belt is with regard to rotary yarn and add false twisting for the yarn towards jaw; The skew of respective channel yarn drags is in operation just offset basically.
20. device according to claim 19 is characterized in that, in operation, twist yarn is pulled through the back side of a described trip segment and the front of another trip segment.
21. according to claim 19 or 20 described devices, it is characterized in that the device here is a kind of spinning apparatus, wherein conveyer comprises drafting system, and twisting apparatus is a kind of spindle, it is rotatable, and yarn and twist to yarn is used for reeling.
22. device according to claim 21 is characterized in that, and then comprises a kind of thread-carrier between spindle and jaw, rings and steel traveler get in order to yarn is wound up into spindle.
23. device according to claim 22 is characterized in that, described continuous moving belt device is between thread-carrier and the jaw.
24. any described device according to claim 19 to 23, it is characterized in that, the continuous moving belt here so designs, and the moving direction of its each contacting travel section is all laterally staggered by the direction that spindle draws with yarn, also promptly is into 90 degree basically.
25. any described device according to claim 19 to 24 is characterized in that, in the fine spining machine of many ingots, described moving belt device is exactly a single moving belt, in order to contact with threads.
26. any described device according to claim 19 to 25 is characterized in that, and then comprises in order to regulating moving belt, and/or its location with the device of the characteristic that contacts of yarn.
CN97192676A 1996-02-29 1997-02-28 Reducing end breaks in spinning or twisting of yarn Pending CN1212737A (en)

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Application Number Priority Date Filing Date Title
AUPN8384A AUPN838496A0 (en) 1996-02-29 1996-02-29 Reducing end breaks in the spinning or twisting of yarn
AUPN8384 1996-02-29

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CN1212737A true CN1212737A (en) 1999-03-31

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EP (1) EP0883702A4 (en)
JP (1) JP2001508133A (en)
KR (1) KR19990087402A (en)
CN (1) CN1212737A (en)
AU (1) AUPN838496A0 (en)
BR (1) BR9707790A (en)
CA (1) CA2247242A1 (en)
PL (1) PL328866A1 (en)
TR (1) TR199801684T2 (en)
WO (1) WO1997032064A1 (en)

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TR199801684T2 (en) 1999-09-21
EP0883702A1 (en) 1998-12-16
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WO1997032064A1 (en) 1997-09-04
PL328866A1 (en) 1999-03-01

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