CN106801275B - A kind of rove backtwisting spun yarn, which increases, twists spinning apparatus and Yarn spinning method - Google Patents
A kind of rove backtwisting spun yarn, which increases, twists spinning apparatus and Yarn spinning method Download PDFInfo
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- CN106801275B CN106801275B CN201710192281.9A CN201710192281A CN106801275B CN 106801275 B CN106801275 B CN 106801275B CN 201710192281 A CN201710192281 A CN 201710192281A CN 106801275 B CN106801275 B CN 106801275B
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- 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
- D01H1/14—Details
- D01H1/20—Driving or stopping arrangements
- D01H1/24—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles
-
- 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
- D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/02—Spinning or twisting arrangements for imparting permanent twist
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The present invention, which provides a kind of rove backtwisting spun yarn and increases, twists spinning apparatus and Yarn spinning method, including draft mechanism and winding mechanism, it is provided with feed carrier therebetween, twist device is provided between draft mechanism and feed carrier, the upper side band of device is in contact with the rove passed through by rove feeding horn mouth, form rove backtwisting working face, rove before counter extensioin realizes the effect of backtwisting, to reduce turn redistribution phenomenon of the rove in drafting process, lower sideband is in contact to the fiber strip of output by front roller drawing-off with after drawing-off, form pre- amount of twist, play the role of enhancing to the fiber strip before twisting to twist in advance, to reduce the twist triangle zone between front roller nip and yarn twisting point, improve resultant yarn comprehensive quality.
Description
Technical field
The present invention relates to spinning new technical field, specifically a kind of rove backtwisting spun yarn, which increases, twists spinning apparatus and spinning
Yarn method.
Background technology
It is still the current most important spun yarn mode of production to continue to use time-honored RING SPINNING, and which has feeding
The ribbon attenuating of certain twist draws and attenuates, and finally twists into required spun yarn.But main problem existing for RING SPINNING is：By
In there are twist triangle zones, on the one hand the tail end of side fiber can be made to be not easy to be entered sliver by winding and formed filoplume；On the other hand
Because side fiber is larger by tension difference with center fiber, it is not easy to be broken simultaneously when stretching, leads to not make full use of each list
The strength of fiber and reduce single end strength.
To solve the problems, such as this, textile limit researcher has been directed to frame spinning twist triangle zone and has carried out a large amount of research, and
A series of great successes are achieved in theoretical research, engineering practice respectively.Wherein, in Optimal improvements frame spinning twist triangle
In terms of the research for especially reducing or even eliminating twist triangle zone, important technology is had become using enhancing yarn twist unevenness method for area
Means.
But existing technical method generally existing efficiency is low, resultant yarn uneven twist and strong irregular big；Compare during use
Complexity is to increase the process of care and maintenance and be susceptible to the first-class problems of large area brake so that current is many existing
Method can not large-scale industrialization promotion.In addition, during roving-drafting, due to twist problem existing for rove itself,
So that being susceptible to the redistribution scene of turn in drafting process, yarn quality is influenced.
Increase in view of this, the present invention provides a kind of rove backtwisting spun yarn and twist spinning apparatus and Yarn spinning method, passes through and install monocycle additional
Around twist device, realize backtwisting is carried out to the rove before feeding draft area, the fiber strip that obtains after counter extensioin is twisted
Preceding enhancing is twisted, to greatly improve resultant yarn comprehensive quality.
Invention content
Increase the technical problem to be solved by the present invention is to providing a kind of rove backtwisting spun yarn and twist spinning apparatus and Yarn spinning method,
Enhancing before the fiber strip for the rove before feeding draft area obtain after backtwisting, counter extensioin with realization is twisted is twisted,
To greatly improve resultant yarn comprehensive quality.
In order to achieve the above object, increase the present invention relates to a kind of rove backtwisting spun yarn and twist spinning apparatus, including drafting machine
Structure and winding mechanism, the draft mechanism include rear roller drawing-off to, middle roller drawing-off to, front roller drawing-off pair, it is described after sieve
Dragline is stretched to including rear bottom roll and rear upper glue roller, and the middle roller drawing-off is to including middle bottom roller and middle upper glue roller, before described
Roller draft is to including preceding bottom roll and preceding upper glue roller, and the top of roller draft pair is provided with rove feeding loudspeaker in the rear
Mouthful, the winding mechanism includes spool, and the spool insertion is mounted on spindle, and the spindle is by spindle band by motor band turn
It is dynamic, fixed rings is surrounded on the outside of the spool, the rings is looped around the middle and lower part of spool, and the rings is annulus
Structure keeps certain spacing, the rings to be fixed on rings between the inside circumference of the rings and the outer circumference of spool
On plate, the ring rail is fixed on the both sides of spinning frame, and slideway is provided on the rings, and steel is added in the slideway
Wire ring, the wire loop are circular ring structure, and the wire loop straddles in the slideway of rings, and the wire loop can be along rings
Slideway high-speed rotation is provided with feed carrier between the front roller drawing-off pair and spool, and the feed carrier is circular ring shape,
The feed carrier is fixed on the ride face of spinning frame, in the axis of rotation of the spindle, the center of rings, feed carrier
Heart three is concentric, is fed between horn mouth and feed carrier respectively in the rove in the left side ride face of spinning frame and right side ride face
It is provided with twist device, the twist device is the banded structure of annular, and the twist device bypasses be fixed on spinning frame successively
The first pulley of ride face upper right side, is fixed on spun yarn locomotive platform face at the second pulley for being fixed on spun yarn locomotive platform face upper left side
The third pulley of left side, is fixed on spun yarn locomotive platform face lower right side at the 4th pulley for being fixed on spun yarn locomotive platform face lower left side
The 5th pulley, be fixed on right mediolateral 6th pulley in spun yarn locomotive platform face, finally unroll to be fixed on spun yarn locomotive platform face the right side
The first pulley of upside realizes one week circulating type structure, and the upper side band between the first pulley and second pulley is located at thick
Yarn is fed between horn mouth and rear roller drawing-off pair, and rove is come out rear and twist device upper side band outer by rove feeding horn mouth
Side is in contact, and forms rove backtwisting working face, and the lower sideband between the 4th pulley and the 5th pulley is located at front roller drawing-off
Pair between feed carrier, by front roller drawing-off to being in contact on the outside of the fiber strip and twist device lower sideband of output, shape
At pre- amount of twist working face, the twist device is driven suitable around the left side ride face of spinning frame and right side ride face by auxiliary-motor
Hour hands rotate counterclockwise, and to drive the upper side band of twist device to rotate clockwise or counterclockwise, lower sideband is counterclockwise
Or rotate clockwise, it is produced with the rove of contact on rove backtwisting working face in the upper side band rotation process of the twist device
Raw rolling friction, to drive the fiber in rove to generate opposite with upper side band rotation direction turn around the center fiber of rove
It is dynamic, the effect of the backtwisting twist then is generated to rove, the direction of itself twist of the direction and rove of the backtwisting twist is on the contrary, be located at
The end of rove between rove feeding horn mouth and rear roller drawing-off pair, to holding, is located at backtwisting twist work by rear roller drawing-off
Make the rove on face under the action of the backtwisting twist by backtwisting, then realizes the untwisting process before rove feeding draft area；Institute
It states in the lower sideband rotation process of twist device and generates rolling friction with the fiber strip of contact on pre- amount of twist working face, to
It drives the fiber in yarn to generate the rotation opposite with lower sideband rotation direction around the center fiber of yarn, then yarn is produced
Raw pre- amount of twist effect, the direction of the pre- amount of twist is identical at the direction of twist per unit as final, and the twist of rove itself is anti-
To identical as the twist direction of final resultant yarn.
Increase the invention further relates to a kind of rove backtwisting spun yarn and twist Yarn spinning method, when spinning, auxiliary-motor drives twist device
It is rotated clockwise or counterclockwise around the left side ride face of spinning frame and right side ride face, to drive the top of twist device
Band rotates clockwise or counterclockwise, lower sideband is counterclockwise or rotates clockwise, and rove is after across rove horn mouth through solution
It twists twist working face and feeds rear roller drawing-off pair, be now placed in the rove on the backtwisting twist working face under the action of backtwisting twist
By backtwisting, first break draft area via rear roller drawing-off pair and middle roller drawing-off to composition of rove after backtwisting, middle roller drawing-off pair
It is exported after being acted on the drawing-off of the front draft zone of composition with front roller drawing-off, obtains the fiber strip with weak twist after drawing-off,
Fiber strip after drawing-off sequentially passes through center, the wire loop of feed carrier after pre- amount of twist working face, is finally wound in yarn
Guan Shang, main motor by spindle band drive spindle rotation, then drive spool rotation, then by around fiber strip drive steel
Wire ring is rotated along the slideway of rings, due to the flexible structure of fiber strip so that the velocity of rotation of wire loop is less than spool
The speed discrepancy of velocity of rotation, wire loop and spool generates fiber strip the effect of the original twist, and the original twist is along fiber
Yarn is transmitted from bottom to top, right due to the rubbing action between feed carrier and fiber strip when being transmitted to feed carrier
Interception is played in being communicated up for the original twist, reduces the transmission efficiency of the original twist, while feed carrier and fiber strip
Contact point formed a resistance twist point, then when lower sideband of the original yarn twist unevenness to twist device, twist device is in pre-add
Fiber strip is driven to generate the rotation opposite with lower sideband rotation direction around yarn center fiber on twist working face, to right
Fiber strip generates the effect of pre- amount of twist, and the direction of pre- amount of twist is identical as the direction of the original twist, be located at feed carrier and
The end of fiber strip between front roller drawing-off pair by front roller drawing-off to hold, be located at pre- amount of twist working face on yarn
It is twisted under the collective effect of pre- amount of twist and the original twist, continues to be communicated up after pre- amount of twist and the merging of the original twist,
So that the fiber strip after drawing-off is directly twisted in the original twist and in advance after being exported by the jaw line of front roller drawing-off pair
It is rotated around respective center fiber under the comprehensive function of degree, to which respectively twisting merges into spun yarn, fiber strip is in front roller
Drawing-off to jaw line to spun yarn converge yarn forming point between form twist triangle zone, the increasing due to pre- amount of twist to original yarn twist unevenness
Use is pretended, is even disappeared to which twist triangle zone substantially reduces, so as to improve yarn quality.
The present invention by install additional monocycle around twist device, realize to feeding draft area before rove carry out backtwisting, to leading
Enhancing before the fiber strip obtained after stretching is twisted is twisted, to greatly improve resultant yarn comprehensive quality.
Description of the drawings
Fig. 1 is the spinning apparatus overall structure diagram of the present invention；
Specific implementation mode
As shown in Figure 1, a kind of rove backtwisting spun yarn, which increases, twists spinning apparatus, including draft mechanism and winding mechanism, drafting machine
Structure includes rear roller drawing-off pair 3, middle roller drawing-off pair 4, front roller drawing-off pair 5, rear roller drawing-off to include rear bottom roll and after
Upper glue roller, middle roller drawing-off to including middle bottom roller and middle upper glue roller, front roller drawing-off to including preceding bottom roll and preceding upper glue roller,
The top of rear roller drawing-off pair is provided with rove and feeds horn mouth 2, winding mechanism includes spool 18, and spool insertion is mounted on ingot
On son, spindle is driven by motor by spindle band and is rotated, and fixed rings 17 is surrounded on the outside of spool, rings is looped around spool
Middle and lower part, rings is circular ring structure, and certain spacing, rings are kept between the inside circumference of rings and the outer circumference of spool
It is fixed on ring rail, ring rail is fixed on the both sides of spinning frame, and slideway is provided on rings, and steel wire is added in slideway
Circle 16, wire loop is circular ring structure, and wire loop straddles in the slideway of rings, and wire loop can turn along the slideway high speed of rings
It is dynamic, feed carrier 15 is provided between front roller drawing-off pair and spool, feed carrier is circular ring shape, and feed carrier is fixed on carefully
On the ride face of yarn machine, the axis of rotation of spindle, the center of rings, the center three of feed carrier are concentric, on a left side for spinning frame
The rove in side ride face and right side ride face feeds and is respectively arranged with twist device 6 between horn mouth and feed carrier, twist dress
It is set to the banded structure of annular, twist device bypasses successively to be fixed on the first pulley 9 of spun yarn locomotive platform face upper right side, is fixed on
The second pulley 10 of spun yarn locomotive platform face upper left side, the third pulley 11 for being fixed on the left side in spun yarn locomotive platform face are fixed on carefully
4th pulley 12 of yarn locomotive table top lower left side, is fixed on spun yarn at the 5th pulley 13 for being fixed on spun yarn locomotive platform face lower right side
Right mediolateral 6th pulley 14 of locomotive table top finally unrolls to the first pulley 9 for being fixed on spun yarn locomotive platform face upper right side, realizes
One week circulating type structure, the upper side band 7 between first pulley and second pulley is located at rove feeding horn mouth and rear roller is led
Stretch between, rove 1 by rove feeding horn mouth 2 out after be in contact on the outside of twist device upper side band, formation rove solution
Working face is twisted, following 8 band between the 4th pulley and the 5th pulley is between front roller drawing-off pair and feed carrier, by preceding sieve
Dragline is stretched to be in contact on the outside of fiber strip and twist device lower sideband to output, forms pre- amount of twist working face, twist dress
It sets 6 to be rotated clockwise or counterclockwise around the left side ride face of spinning frame and right side ride face by auxiliary-motor drive, to band
The upper side band 7 of dynamic twist device rotates clockwise or counterclockwise, lower sideband 8 is counterclockwise or rotates clockwise, twist device 6
7 rotation process of upper side band on rove backtwisting working face with the rove of contact generate rolling friction, to drive in rove
Fiber generate the rotation opposite with upper side band rotation direction around the center fiber of rove, then to the rove generation backtwisting twist
Effect, the direction of the backtwisting twist is with the direction of rove itself twist on the contrary, positioned at rove feeding horn mouth and rear roller drawing-off pair
Between rove end by rear roller drawing-off pair 3 hold, be located at backtwisting twist working face on rove the backtwisting twist work
With lower by backtwisting, the untwisting process before rove feeding draft area is then realized；In 8 rotation process of lower sideband of twist device 6
Rolling friction is generated with the fiber strip of contact on pre- amount of twist working face, to drive the fiber in yarn in yarn
Core fiber generates the rotation opposite with lower sideband rotation direction, and then generating pre- amount of twist to yarn acts on, the side of pre- amount of twist
To with it is final identical at the direction of twist per unit, the twist of rove itself is reversely identical as the twist direction of final resultant yarn.
When spinning, auxiliary-motor drive twist device 6 around the left side ride face of spinning frame and right side ride face clockwise or
Person rotates counterclockwise, to drive the upper side band 7 of twist device 6 to rotate clockwise or counterclockwise, lower sideband 8 counterclockwise or
It rotates clockwise, rove 1 feeds rear roller drawing-off pair after across rove horn mouth 2 through backtwisting twist working face, is now placed in
Rove on backtwisting twist working face is by backtwisting under the action of the backtwisting twist, and the rove after backtwisting is via rear roller drawing-off pair 3
It leads the front draft zone that first break draft area, middle roller drawing-off pair 4 and the front roller drawing-off pair 5 formed with middle roller drawing-off pair 4 forms
It is exported after the effect of stretching, obtains the fiber strip with weak twist after drawing-off, the fiber strip after drawing-off is through pre- amount of twist working face
Center, the wire loop 16 for sequentially passing through feed carrier 15 afterwards, are finally wound on spool 18, main motor drives spindle by spindle band
Rotation, then drive spool 18 rotate, then by around fiber strip drive wire loop 16 along rings 17 slideway turn
It is dynamic, due to the flexible structure of fiber strip so that the velocity of rotation of wire loop 16 is less than the velocity of rotation of spool 18, wire loop with
The speed discrepancy of spool generates fiber strip the effect of the original twist, which is passed from bottom to top along fiber strip
It passs, when being transmitted to feed carrier 15, due to the rubbing action between feed carrier and fiber strip, to the original twist to upload
It passs and plays interception, reduce the transmission efficiency of the original twist, while feed carrier 15 and the contact point of fiber strip form one
A resistance twist point, then when lower sideband 8 of the original yarn twist unevenness to twist device 6, twist device 6 is on pre- amount of twist working face
Fiber strip is driven to generate the rotation opposite with 8 rotation direction of lower sideband around yarn center fiber, to be produced to fiber strip
The effect of raw pre- amount of twist, the direction of pre- amount of twist is identical as the direction of the original twist, is led positioned at feed carrier 15 and front roller
It stretches to the end of the fiber strip between 5 by front roller drawing-off to holding, is located at the yarn on pre- amount of twist working face in pre-add
It is twisted under the collective effect of the twist and the original twist, continues to be communicated up after pre- amount of twist and the merging of the original twist, to make
Fiber strip after drawing-off after being exported by the jaw line of front roller drawing-off pair 5 directly in the comprehensive of the original twist and pre- amount of twist
Cooperation is rotated with lower around respective center fiber, and to which respectively twisting merges into spun yarn, fiber strip is in front roller drawing-off pair
Jaw line forms twist triangle zone between converging yarn forming point to spun yarn, since pre- amount of twist makees the enhancing of original yarn twist unevenness
With to which twist triangle zone substantially reduces even disappearance, so as to improve yarn quality.
Claims (2)
1. a kind of rove backtwisting spun yarn, which increases, twists spinning apparatus, including draft mechanism and winding mechanism, after the draft mechanism includes
Roller draft to, middle roller drawing-off to, front roller drawing-off pair, the rear roller drawing-off to including rear bottom roll and rear upper glue roller,
The middle roller drawing-off is to including middle bottom roller and middle upper glue roller, and the front roller drawing-off is to including preceding bottom roll and preceding gluing
Roller, in the rear the top of roller draft pair be provided with rove feeding horn mouth, the winding mechanism includes spool, the spool
Embedded to be mounted on spindle, the spindle is driven by motor by spindle band and is rotated, and is surrounded on the outside of the spool fixed
Rings, the rings are looped around the middle and lower part of spool, and the rings is circular ring structure, the inside circumference of the rings and spool
Certain spacing, the rings is kept to be fixed on ring rail between outer circumference, the ring rail is fixed on the two of spinning frame
Side is provided with slideway on the rings, wire loop is added in the slideway, the wire loop is circular ring structure, described
Wire loop straddles in the slideway of rings, and the wire loop can be along the slideway high-speed rotation of rings, in the front roller drawing-off
Feed carrier pair is provided between spool, the feed carrier is circular ring shape, and the feed carrier is fixed on the vehicle of spinning frame
On table top, the axis of rotation of the spindle, the center of rings, the center three of feed carrier are concentric, it is characterized in that：In spinning frame
Left side ride face and right side ride face rove feeding horn mouth and feed carrier between be respectively arranged with twist device, it is described
Twist device is the banded structure of annular, and the twist device bypasses the first cunning for being fixed on spun yarn locomotive platform face upper right side successively
Take turns, the second pulley that is fixed on spun yarn locomotive platform face upper left side, the third pulley for being fixed on the left side in spun yarn locomotive platform face, fixation
Spun yarn locomotive platform face lower left side the 4th pulley, be fixed on spun yarn locomotive platform face lower right side the 5th pulley, be fixed on spun yarn
Right mediolateral 6th pulley of locomotive table top finally unrolls to the first pulley for being fixed on spun yarn locomotive platform face upper right side, realizes one
The circulating type structure in week, the upper side band between the first pulley and second pulley is located at rove feeding horn mouth and rear roller is led
Stretch between, rove by rove feeding horn mouth out after be in contact on the outside of twist device upper side band, formation rove backtwisting
Working face, the lower sideband between the 4th pulley and the 5th pulley is between front roller drawing-off pair and feed carrier, by preceding
Roller draft forms pre- amount of twist working face to being in contact on the outside of the fiber strip and twist device lower sideband of output, described
Twist device is driven by auxiliary-motor and is rotated clockwise or counterclockwise around the left side ride face of spinning frame and right side ride face, from
And drive the upper side band of twist device to rotate clockwise or counterclockwise, lower sideband counterclockwise or rotate clockwise, the twirl
It spends in the upper side band rotation process of device and generates rolling friction with the rove of contact on rove backtwisting working face, to which band is used force
Fiber in yarn generates the rotation opposite with upper side band rotation direction around the center fiber of rove, then generates backtwisting to rove
The twist acts on, and the direction of the backtwisting twist is with the direction of rove itself twist on the contrary, positioned at rove feeding horn mouth and rear sieve
Dragline stretches the end of the rove between by rear roller drawing-off to holding, and the rove being located on backtwisting twist working face is twisted in backtwisting
By backtwisting under the action of degree, the untwisting process before rove feeding draft area is then realized；The lower sideband of the twist device turns
Rolling friction is generated with the fiber strip of contact on pre- amount of twist working face during dynamic, to drive the fiber in yarn to surround
The center fiber of yarn generates the rotation opposite with lower sideband rotation direction, and then generating pre- amount of twist to yarn acts on, described
The direction of pre- amount of twist and final identical at the direction of twist per unit, the reversed twist side with final resultant yarn of the twist of rove itself
To identical.
2. a kind of based on a kind of rove backtwisting spun yarn increasing twirl spinning of rove backtwisting spun yarn increasing twirl spinning apparatus described in claim 1
Yarn method, it is characterized in that：When spinning, auxiliary-motor drives twist device ring suitable around the left side ride face of spinning frame and right side ride face
Hour hands rotate counterclockwise, and to drive the upper side band of twist device to rotate clockwise or counterclockwise, lower sideband is counterclockwise
Or rotate clockwise, rove feeds rear roller drawing-off pair after across rove horn mouth through backtwisting twist working face, at this time position
In the rove on backtwisting twist working face by backtwisting under the action of the backtwisting twist, the rove after backtwisting is via rear roller drawing-off pair
The drawing-off of the front draft zone of composition is made in the first break draft area of composition, middle roller drawing-off pair and front roller drawing-off with middle roller drawing-off
With rear output, obtain the fiber strip with weak twist after drawing-off, the fiber strip after drawing-off after pre- amount of twist working face according to
Secondary to be finally wound on spool across the center of feed carrier, wire loop, main motor drives spindle rotation by spindle band, then
Drive spool rotation, then by around fiber strip drive wire loop along rings slideway rotate, due to fiber strip
Flexible structure so that the velocity of rotation of wire loop is less than the velocity of rotation of spool, and the speed discrepancy of wire loop and spool is to fiber
Yarn generates the effect of the original twist, which is transmitted from bottom to top along fiber strip, is transmitted to feed carrier
When, due to the rubbing action between feed carrier and fiber strip, interception is played to being communicated up for the original twist, is reduced
The transmission efficiency of the original twist, while the contact point of feed carrier and fiber strip forms a resistance twist point, then when original twirl
When degree is transmitted to the lower sideband of twist device, twist device drives fiber strip to surround yarn center on pre- amount of twist working face
Fiber generates the rotation opposite with lower sideband rotation direction, to generate the effect of pre- amount of twist, pre- amount of twist to fiber strip
Direction it is identical as the direction of the original twist, the end of the fiber strip between feed carrier and front roller drawing-off pair is preceding
To holding, the yarn on pre- amount of twist working face is added roller draft under the collective effect of pre- amount of twist and the original twist
It twists, continues to be communicated up after pre- amount of twist and the merging of the original twist, so that the fiber strip after drawing-off is led by front roller
Stretch to jaw line output after directly under the comprehensive function of the original twist and pre- amount of twist around respective center fiber rotate,
To which respectively twisting merges into spun yarn, fiber strip is formed between front roller drawing-off converges jaw line to spun yarn yarn forming point to be added
Trigonum is twisted, since pre- amount of twist is to the humidification of original yarn twist unevenness, is even disappeared to which twist triangle zone substantially reduces,
So as to improve yarn quality.
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| CN201710192281.9A CN106801275B (en) | 2017-03-28 | 2017-03-28 | A kind of rove backtwisting spun yarn, which increases, twists spinning apparatus and Yarn spinning method |
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| CN201710192281.9A CN106801275B (en) | 2017-03-28 | 2017-03-28 | A kind of rove backtwisting spun yarn, which increases, twists spinning apparatus and Yarn spinning method |
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| CN108505160B (en) * | 2018-03-07 | 2020-10-02 | 安徽颍上县富颍纺织有限公司 | Untwisting drafting spinning device and spinning method |
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| CN109706579A (en) * | 2019-02-18 | 2019-05-03 | 合肥岸鲁意科技有限公司 | A kind of filament short-fiber aggregate process units and production method |
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| CN203855718U (en) * | 2014-05-14 | 2014-10-01 | 江南大学 | Four-roller self-twisting ring spinning device |
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