CN109610053A - A kind of Yarn spinning method of super draft - Google Patents
A kind of Yarn spinning method of super draft Download PDFInfo
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- CN109610053A CN109610053A CN201811390391.7A CN201811390391A CN109610053A CN 109610053 A CN109610053 A CN 109610053A CN 201811390391 A CN201811390391 A CN 201811390391A CN 109610053 A CN109610053 A CN 109610053A
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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
- D01H5/22—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only
-
- 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
-
- 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
- D01H5/44—Adjusting drafting elements, e.g. altering ratch
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The present invention relates to a kind of Yarn spinning methods of super draft, there to be twirl ribbon successively to pass through first break draft area, middle draft area and front draft zone, respectively in first break draft area and front draft zone using double Apron Drafts, being gathered in middle draft area simultaneously and control its drafting multiple is 1 to realize super draft, it is free zone between rear roller jaw and double cushion rubber jaws in the first break draft area, it is free zone between front roller nip and double cushion rubber jaws in the front draft zone, the free zone refers to the region of zerofriction force effect, double Apron Draft systems mainly by arranging and mutually matched top-pin rack and lower pin bar up and down, in the tensioner of lower pin bar side-lower setting, it covers the upper cushion rubber on medium rubber roller and top-pin rack and covers in middle roller, rear lower cushion rubber composition on lower pin bar and tensioner.Method of the invention realizes the super draft of yarn under the premise of guaranteeing yarn qualities, there is fabulous promotional value.
Description
Technical field
The invention belongs to spinninging technical fields, are related to a kind of Yarn spinning method of super draft, in particular to a kind of spinning frame
The Yarn spinning method of the super draft of two-way extension cushion rubber jaw.
Background technique
RING SPINNING is a kind of side for the mechanical spinning for carrying out twisting by spindle, rings and wire loop and carrying out drawing-off by roller
Method is to develop a kind of the most mature and the most widely used spinning system in existing spinning technique.
Compared with other Advanced Spinning Technologies, disadvantage is that process is longer for ring spinning, this is because general spin commonly
The process of ring spindle yarn is to distribute cotton → opening picking → cotton carding → drafting → rove → spun yarn, i.e., through drawing frame and closes uniform fiber
Item first need to be made into rove through Roving Frames and could use for spinning frame, if being directly spun into spun yarn with ribbon, the spinning
Journey needs biggish drafting multiple, and drafting multiple is bigger, and the speed difference between each drawing-off device will be bigger, and drafting process is more not
It is easy to control, the items quality index such as the made spinning evenness uniformity and thickness section is poor, and the spun yarn spinned is difficult
To meet quality requirement.
The drafting system of existing ring throstle is generally made of three rollers and three rollers, including rear roller, middle sieve
It draws and front roller and its corresponding roller, wherein the region between rear roller and rear roller and middle roller and medium rubber roller is constituted
First break draft area, first break draft area are generally 1~1.5 times to the drafting multiple of fiber strip, and main function is to destroy to have twirl ribbon
The twist, prepare for front draft zone drawing-off, region between front roller and front leather roller and middle roller and medium rubber roller and upper and lower
Cushion rubber and pin bar construction front draft zone, drafting multiple is generally between 30~50 times, the front draft zone drawing-off of ring throstle
Larger multiple is the cushion rubber jaw because upper and lower cushion rubber and pin stick form positive extension, and the floating fiber in counter extensioin area plays
Hold the effect of control.But since drawing-off is to cause the important factor in order of yarn unevenness, drafting multiple is bigger, sliver it is irregular
Also bigger, if directly utilizing ribbon coarse yarn and spinning fine yarn, existing ring throstle is difficult under the premise of meeting quality requirement
Corresponding spun yarn is directly made by the super large multiple drawing-off of ribbon.
In addition, some scientific research personnel are clamped by increasing jaw quantity, the even more than two positive cushion rubbers that extend of formation two
Cause for gossip shows the gripping control of fiber, but more cushion rubber jaws or more draft areas realize one that ribbon drawing-off faces it is very crucial
The problem of be: during to fiber strip multistage series aiding connection drawing-off, the drafting wave in the draft area of upstream is superimposed upon downstream
Draft area generates the severe exacerbation to linear-density distribution.Therefore, it simply increases cushion rubber jaw or increases cushion rubber jaw and drawing-off
Area can not keep drawing-off quality while proportionally increasing drawing-off ability.
Therefore, studying a kind of Yarn spinning method that can be realized ribbon high quality and super large multiple drawing-off and device has ten
Divide important meaning.
Summary of the invention
The purpose of the present invention is overcoming above-mentioned problems of the prior art, providing one kind, to can be realized ribbon high-quality
The Yarn spinning method of amount and the drawing-off of super large multiple.
In order to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of Yarn spinning method of super draft will have twirl ribbon successively to pass through first break draft area, middle draft area and front draft
Area respectively in first break draft area and front draft zone using double Apron Drafts, while being gathered in middle draft area and controlling its drawing-off
Multiple is 1 to realize super draft；
It is free zone, front roller in the front draft zone between rear roller jaw and double cushion rubber jaws in the first break draft area
It is free zone between jaw and double cushion rubber jaws, the free zone refers to the region of zerofriction force effect.
The essence of spinning process is the process for drawing and attenuating fiber assembly (if any ribbon is twisted) attenuating, in the process of stretching
In, speed need to gradually be accelerated all parts from back to front, realize that drawing-off need to have three speed difference, gauge and pressure conditions, fine
Dimension can be changed from swimming no-console condition to by state of a control in drafting process, and the point changed is Fiber Velocity point, should
Transition process will receive the control of friction field.When fiber control by friction field always in drafting process, entirely
The shifting that Fiber Velocity point in fiber strip can unify i.e. fiber can be smaller away from deviation, and speed can be consistent, and be formed by
The even thickness degree of yarn can preferably, and thickness festival-gathering is less, and when friction field is relatively narrow, fiber can only in drafting process
Fiber Velocity point meeting disunity, that is, fiber shifting of control of the part by friction field, fiber can become larger away from deviation, therefore institute
The quality of yarn also can be poorer.
It is of the invention to have when twisting ribbon successively passes through first break draft area, drafting multiple is 1 middle draft area and front draft zone,
Process is as follows:
(1) be provided in first break draft area double cushion rubber jaws for extending back i.e. afterwards pair cushion rubber jaws close to rear roller jaw,
Fiber Velocity point in first break draft area backward widen by the mobile friction field simultaneously of roller nip, makes the Fiber Velocity in first break draft area
Point Relatively centralized, reduces the shifting of fiber rear end away from deviation, thus first break draft area drafting multiple can increase, simultaneously because using
Biggish first break draft area drafting multiple, is conducive to stretching for leading hooked fibre；
(2) yarn is gathered in draft area in, the yarn that can be dissipated with efficient set through the drawing-off of first break draft area, favorably
In the drafting multiple for increasing front draft zone, the drafting multiple of middle draft area be 1 can by first break draft area and front draft zone completely every
It is disconnected, make to be not in contact with therebetween, be conducive to the stability for improving spinning, is conducive to promote drafting multiple, is also beneficial to guarantee
The quality of yarn；
(3) pair cushion rubber jaws are preceding close to front roller nip before front draft zone is provided with the double cushion rubber jaws extended forward i.e.
Fiber Velocity point in draft area is widened to the mobile friction field simultaneously of front roller nip, makes the Fiber Velocity point in front draft zone
Relatively centralized reduces fiber front end and moves away from deviation, thus draft area drafting multiple can increase, simultaneously because using before biggish
Draft area drafting multiple is conducive to stretching for crotch after fiber, thus to realize under the premise of guaranteeing spinning quality
Twist the super draft of ribbon.
As a preferred technical scheme:
The drafting multiple difference of a kind of Yarn spinning method of super draft as described above, the first break draft area and front draft zone
For 5~7 times and 51.6~62 times, the total draft multiple in the first break draft area, middle draft area and front draft zone is 310~430.5
Times.Existing drafting system of ring spinner is 30~80 times to there is the total draft multiple for twisting rove item, and the method for the present invention significantly mentions
The high drafting multiple of ribbon.
A kind of Yarn spinning method of super draft as described above, double cushion rubber jaws and rear roller pincers in the first break draft area
The distance between mouth is 5~15mm, and Fiber Velocity point concentration in first break draft area can be made to move back rear roller jaw within this range,
Friction and gripping work of double cushion rubber jaws increases to ribbon after utilization can be improved away from deviation in the shifting of reduction fiber rear end
With improving the drafting multiple in first break draft area, be conducive to stretching for crotch before fiber；Double cushion rubber jaws in the front draft zone with
The distance between front roller nip is 5~15mm, before front draft zone Fiber Velocity point concentration can within this range be advanced to
Roller nip reduces the shifting of fiber front end away from deviation, while can be improved and be held using preceding double cushion rubber jaw increases to ribbon
The effect of holding improves the drafting multiple of front draft zone, is conducive to stretching for crotch after fiber.Double cushion rubber jaws and its phase of the invention
It answers the distance between roller nip to include but are not limited to this, can adjust in the appropriate range, but should not too, double cushion rubber jaws
The distance between roller nip corresponding to its is excessive, and the friction field in draft area can become smaller, and the speed change point of fiber will not be concentrated,
When implementing super draft, the quality of yarn can be deteriorated, and apart from too small, Fiber Velocity point is too close to roller nip, drafting force
It is excessive to be easy that fiber is caused to damage.
A kind of Yarn spinning method of super draft as described above, the friction field edge in the first break draft area or front draft zone
Having the length for twisting ribbon traffic direction is to have twist ribbon length 77.2~88.6% in the draft area.
A kind of Yarn spinning method of super draft as described above, before the drawing-off, having the twist for twisting ribbon is 5~20
Twirl/m, quantification of 15~30g/5m.What the method for the present invention was applicable in has twirl ribbon to include but are not limited to this, only enumerates portion herein
Dividing common are twirl ribbon.
A kind of Yarn spinning method of super draft as described above, the first break draft area are roller and rear roller and one after a pair
To the region between the first medium rubber roller and the first middle roller；
The middle draft area is a pair of first medium rubber roller and the first middle roller and a pair of second medium rubber roller and the second middle roller
Between region；
The front draft zone is the area between a pair of second medium rubber roller and the second middle roller and a pair of of front leather roller and front roller
Domain；
Each pair of roller and roller are arranged up and down.
A kind of Yarn spinning method of super draft as described above, in first break draft area using the implementation of double Apron Drafts
Are as follows:
First top-pin rack and rear lower pin bar after first break draft area is arranged and arranges up and down and is mutually matched, while in rear lower pin bar
Backward pull device is arranged in side-lower, then gluing snare is on the first medium rubber roller and rear top-pin rack by after, and lower cushion rubber covers in first afterwards
On roller, rear lower pin bar and backward pull device, lower pin bar after cushion rubber is tensioned and is close to down after the position of control backward pull device makes
Yarn binding face, the yarn binding face of upper cushion rubber and rear lower cushion rubber is mutual after the position of top-pin rack and rear lower pin bar makes after control
Fitting；
In front draft zone using the implementation of double Apron Drafts are as follows:
Arrangement up and down and mutually matched preceding top-pin rack and preceding lower pin bar first are set in front draft zone, while in preceding lower pin bar
Forward pull device is arranged in side-lower, then by preceding gluing snare on the second medium rubber roller and preceding top-pin rack, front lower cushion rubber covers in second
On roller, preceding lower pin bar and forward pull device, lower pin bar before the position of control forward pull device is tensioned front lower cushion rubber and is close to
Yarn binding face, the yarn binding face of upper cushion rubber and front lower cushion rubber is mutual before the position of top-pin rack and preceding lower pin bar makes before controlling
Fitting.
The shape difference of a kind of Yarn spinning method of super draft as described above, the rear top-pin rack and rear lower pin bar is the same
Top-pin rack and preceding lower pin bar；The yarn binding face of the preceding top-pin rack and preceding lower pin bar is all made of plane and convex cambered surface.
A kind of Yarn spinning method of super draft as described above, in the implementation that middle draft area is gathered are as follows: the
Compacting element is set between one medium rubber roller and the first middle roller and the second medium rubber roller and the second middle roller；
The compacting element is buncher that is fixed or rolling；
The buncher is roller shape or toroidal, and the circumferential surface of roller is ladder around groove, the cross section of groove is equipped with
Shape, trapezoidal bottom and upper bottom respectively correspond the notch and slot bottom of groove, and length is respectively 3~6mm and 1~4mm, bell-mouthed
Bore is 2~4mm；
The quantity of roller shape buncher is 2, is located at and twists above and below ribbon traffic direction and distinguish
Corresponding close second middle roller jaw and the first middle roller jaw；
The quantity of toroidal buncher is 1, close to the second middle roller jaw.
A kind of Yarn spinning method of super draft as described above, the linear velocity of the front roller are 6759~36500mm/
The linear velocity of min, front roller of the present invention include but are not limited to this, have twirl according to the revolving speed of present spindle, for spinning
The thickness of ribbon and the twist variation of institute's yarn, first middle roller is identical as the linear velocity of the second middle roller, so that
The drafting multiple of middle draft area is 1, and then can be played the role of to the better boundling of fiber strip, while being led before effectively having separated
Stretch area and first break draft area, it is ensured that the fiber not mutual containing by front and back draft area driving and running force simultaneously, Ke Yiti
The stability of high front draft zone and the operation of first break draft area.
Invention mechanism:
For the quality for guaranteeing institute's yarn, the crotch phenomenon of fiber is eliminated as far as possible, therefore the present invention uses the side along drawing-off
Formula has middle draft area and the front draft zone that twirl ribbon successively passes through first break draft area, drafting multiple is 1 to realize that super draft is spun
Yarn and the quality that ensure that the yarn obtained that spins, make a concrete analysis of as follows:
When having twirl ribbon by first break draft area, since first break draft area is provided with rear double cushion rubbers (the rear gluings to extend back
Circle and lower cushion rubber afterwards) and double cushion rubber jaws are close to rear roller jaw afterwards, fiber is at close rear roller jaw i.e. by rear upper and lower
The gripping of cushion rubber and friction control, speed change point concentration of the fiber in first break draft area are moved back to rear roller jaw, are led after entire
The friction field for stretching area is wider, and fiber can be by the control in advance of oppositely extending rear double cushion rubber jaws, and fiber is in first break draft
The speed change point in area also Relatively centralized, so that the shifting for reducing fiber rear end away from deviation, reduces, fiber movement control is bad to be caused
Yarn Unevenness the phenomenon that, reduce the quantity of floating fiber, be conducive to the raising of first break draft area drafting multiple；
Ribbon pass through in draft area when, buncher can the yarn that is dissipated through the drawing-off of first break draft area of efficient set, reach
Effect to fibre finish has and twists ribbon after the preliminary drawing-off in first break draft area and the arrangement of middle draft area, fiber strip
Dispersed and fiber arrange preliminary orderly in yarn, be conducive to the drawing-off of front draft zone and the raising of its drafting multiple, in lead
The drafting multiple for stretching area is 1, has effectively separated front draft zone and first break draft area, it is ensured that fiber is not simultaneously by front and back drawing-off
The stability of front draft zone and the operation of first break draft area can be improved in the mutual containing of area driving and running force, is conducive to improve and lead
Multiple is stretched, is also beneficial to guarantee the quality of yarn；
When ribbon is by front draft zone, due to front draft zone be provided with extend forward before double cushion rubbers (preceding upper cushion rubber and
Front lower cushion rubber) and preceding double cushion rubber jaws close to front roller nip, fiber at front roller nip i.e. by preceding upper and lower cushion rubber
Gripping and friction control, fiber front draft zone Fiber Velocity point concentration move forward near front roller nip, entire front draft zone
Friction field it is wider, the front draft zone Fiber Velocity point of fiber also Relatively centralized reduces the shifting of fiber front end away from deviation, subtracts
Lacked fiber movement control it is bad caused by Yarn Unevenness the phenomenon that.
Beneficial effect
(1) Yarn spinning method of a kind of super draft of the invention, it is upper by being provided in front draft zone and first break draft area
Lower cushion rubber makes the Fiber Velocity point Relatively centralized in front draft zone and first break draft area and widens front draft zone and first break draft area simultaneously
Interior friction field realizes the gripping to fiber strip and friction control, to realize the super large multiple for twisting ribbon
Drawing-off；
(2) device of the Yarn spinning method of the invention using super draft, be provided in first break draft area it is oppositely extending after
Double cushion rubber jaws concentrate the speed change point in first break draft area and move back rear roller jaw, reduce the shifting of fiber rear end away from deviation, simultaneously
Using biggish first break draft area drafting multiple, be conducive to stretching for crotch before fiber, be arranged in front draft zone it is positive extend it is double
Cushion rubber jaw makes speed change point concentration in front draft zone be advanced to front roller nip, reduces the shifting of fiber front end away from deviation, uses simultaneously
Very big drafting multiple is conducive to stretching for crotch after fiber；
(3) device of the Yarn spinning method of the invention using super draft, middle draft area drafting multiple are set as 1, add
At least one compacting element, the yarn that can be dissipated with efficient set through the drawing-off of first break draft area, can also be improved front draft zone and
The stability of first break draft area operation, is advantageous the big multiplying power drawing-off in proparea；
(4) device of the Yarn spinning method of the invention using super draft, since first break draft area and front draft zone are adopted respectively
It is moved back with Fiber Velocity point concentration and concentrates two different Fiber Velocity point control methods that move forward with speed change point, avoid fiber
The phenomenon that superposition of drafting wave caused by the single control method of speed change point deteriorates；
(5) device of the Yarn spinning method of the invention using super draft, due to double in first break draft area and front draft zone
Cushion rubber is respectively by the first middle roller jaw and the second middle roller jaw drive control, and double cushion rubbers are in first break draft area and front draft zone
Interior driving does not restrain mutually with operation stress, it can be ensured that first break draft area and front draft zone are run under super draft process conditions
Stability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the realization device of the Yarn spinning method of super draft of the invention；
Fig. 2 is the structural schematic diagram of roller shape buncher of the present invention；
Fig. 3 is the structural schematic diagram of lower pin bar of the present invention；
Fig. 4 is the structural schematic diagram of top-pin rack of the present invention；
Fig. 5 is the structural schematic diagram of tensioner of the present invention；
Wherein, 1- rear roller, roller after 2-, the first medium rubber roller of 3-, the first middle roller of 4-, top-pin rack after 5-, lower pin after 6-
Stick, upper cushion rubber after 7-, lower cushion rubber after 8-, 9- buncher, the second medium rubber roller of 10-, the second middle roller of 11-, top-pin rack before 12-, 13-
Preceding lower pin bar, upper cushion rubber, the front lower cushion rubber of 15-, 16- front leather roller, 17- front roller, 18- backward pull device, 19- forward pull device before 14-.
Specific embodiment
The invention will be further elucidated with reference to specific embodiments.It should be understood that these embodiments are merely to illustrate this hair
It is bright rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, art technology
Personnel can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Fixed range.
Embodiment 1
A kind of Yarn spinning method of super draft: by the twist be 11.6 twirls/m, quantification of 5g/5m have twist ribbon successively pass through
Later draft area, middle draft area and front draft zone, respectively in first break draft area and front draft zone using double Apron Drafts, while in
Draft area gathered and control its drafting multiple be 1 make the drafting multiple of first break draft area and front draft zone be respectively 7 times and
61.5 times, the total draft multiple in first break draft area, middle draft area and front draft zone is 430.5 times；
The structural schematic diagram of the realization device of the Yarn spinning method of super draft of the invention is as shown in Figure 1, wherein first break draft
Area is the region between rear roller 2 and rear roller 1 and the first medium rubber roller 3 and the first middle roller 4 arranged up and down；Middle draft area is
Region between first medium rubber roller 3 arranged up and down and the first middle roller 4 and the second medium rubber roller 10 and the second middle roller 11；Before lead
Stretch region of the area between the second medium rubber roller 10 arranged up and down and the second middle roller 11 and front leather roller 16 and front roller 17；
The linear velocity of front roller 17 is 35000mm/min, and the first middle roller 4 is identical as the linear velocity of the second middle roller 11；
In first break draft area using the implementation of double Apron Drafts are as follows:
First top-pin rack 5 and rear lower pin bar 6 after first break draft area is arranged and arranges up and down and is mutually matched, while in rear lower pin
Backward pull device 18 is arranged in 6 side-lower of stick, then upper 7 sets of cushion rubber is on the first medium rubber roller 3 and rear top-pin rack 5 by after, rear lower 8 sets of cushion rubber
On the first middle roller 4, rear lower pin bar 6 and backward pull device 18, the tensioning of cushion rubber 8 is descended simultaneously in the position of control backward pull device 18 after making
The yarn binding face of lower pin bar 6 after abutting, upper cushion rubber 7 and rear lower glue after the position of top-pin rack 5 and rear lower pin bar 6 makes after control
The yarn binding face of circle 8 is bonded to each other；
The yarn binding face of top-pin rack 5 and rear lower pin bar 6 is all made of plane and convex cambered surface afterwards；
It is free zone between 1 jaw of rear roller and double cushion rubber jaws in first break draft area, free zone refers to that zerofriction force acts on
Region, the distance between double cushion rubber jaws and 1 jaw of rear roller in first break draft area are 8mm, the frictional force in first break draft area
Boundary is to have twist ribbon length 85% in the draft area along there is the length for twisting ribbon traffic direction；
In front draft zone using the implementation of double Apron Drafts are as follows:
Arrangement up and down and mutually matched preceding top-pin rack 12 and preceding lower pin bar 13 first are set in front draft zone, while front lower
It sells 13 side-lower of stick and forward pull device 19 is set, then by 14 sets of preceding upper cushion rubber on the second medium rubber roller 10 and preceding top-pin rack 12, it is front lower
On the second middle roller 11, preceding lower pin bar 13 and forward pull device 19, the position of control forward pull device 19 makes front lower cushion rubber set 15
The yarn binding face of lower pin bar 13 before cushion rubber 15 is tensioned and is close to, before the position of top-pin rack 12 and preceding lower pin bar 13 makes before controlling
The yarn binding face of upper cushion rubber 14 and front lower cushion rubber 15 is bonded to each other；
The structural schematic diagram of backward pull device 18 and forward pull device 19 is as shown in Figure 5；
The shape of preceding top-pin rack 12 and preceding lower pin bar 13 is respectively the same as rear top-pin rack 5 and rear lower pin bar 6；Preceding top-pin rack 12 is with after
The structural schematic diagram of top-pin rack 5 is as shown in figure 4, the structural schematic diagram of preceding lower pin bar 13 and rear lower pin bar 6 is as shown in Figure 3；
It is free zone between 17 jaw of front roller and double cushion rubber jaws in front draft zone, free zone refers to that zerofriction force acts on
Region, the distance between double cushion rubber jaws and 17 jaw of front roller in front draft zone are 6mm, the frictional force in front draft zone
Boundary is to have twist ribbon length 80% in the draft area along there is the length for twisting ribbon traffic direction；
In the implementation that middle draft area is gathered are as follows: in the first medium rubber roller 3 and the first middle roller 4 and the second medium rubber roller
10 and second are arranged compacting element between middle roller 14；
Compacting element is the buncher 9 rolled；
Buncher 9 is roller shape, and quantity is 2, as shown in Fig. 2, being located at the top for twisting ribbon traffic direction
With lower section and respectively correspond close to 4 jaw of 11 jaw of the second middle roller and the first middle roller；The circumferential surface of roller, which is surround, is equipped with groove,
The cross section of groove be it is trapezoidal, trapezoidal bottom and upper bottom respectively correspond the notch and slot bottom of groove, length be respectively 6mm and
4mm；
The number of final yarn obtained is 50 English branch, and bar evenness CV value is 16.5%, and+50% slubbing number is
267/km, -50% details number is 13/km.
Embodiment 2
A kind of Yarn spinning method of super draft, substantially with embodiment 1, the difference is that, having the twirl ribbon twist is 8
The drafting multiple of twirl/m, quantification of 30g/5m, first break draft area and front draft zone is respectively 7 times and 51.6 times, first break draft area, in lead
The total draft multiple for stretching area and front draft zone is 361.2 times；
The linear velocity of front roller is 20325mm/min, and the first middle roller is identical as the linear velocity of the second middle roller；
The distance between double cushion rubber jaws and 1 jaw of rear roller in first break draft area are 5mm, the frictional force in first break draft area
Boundary is to have twist ribbon length 88.6% in the draft area along there is the length for twisting ribbon traffic direction；
The distance between double cushion rubber jaws and 17 jaw of front roller in front draft zone are 5mm, the friction in front draft zone
Power circle is to have twist ribbon length 88.6% in the draft area along there is the length for twisting ribbon traffic direction；
Compacting element is fixed buncher 9；
Buncher 9 is toroidal, and quantity is 1, and close to 11 jaw of the second middle roller, bell-mouthed bore is 2mm；
The number of final yarn obtained is 35 English branch, and bar evenness CV value is 14.6%, and+50% slubbing number is
159/km, -50% details number is 8.2/km.
Embodiment 3
A kind of Yarn spinning method of super draft, substantially with embodiment 2, the difference is that, having the twirl ribbon twist is 15
The drafting multiple of twirl/m, quantification of 15g/5m, first break draft area and front draft zone is respectively 5 times and 62 times, first break draft area, middle drawing-off
The total draft multiple of area and front draft zone is 310 times；
The linear velocity of front roller is 36500mm/min, and the first middle roller is identical as the linear velocity of the second middle roller；
The distance between double cushion rubber jaws and 1 jaw of rear roller in first break draft area are 10mm, the friction in first break draft area
Power circle is to have twist ribbon length 80% in the draft area along there is the length for twisting ribbon traffic direction；
The distance between double cushion rubber jaws and 17 jaw of front roller in front draft zone are 10mm, the friction in front draft zone
Power circle is to have twist ribbon length 80% in the draft area along there is the length for twisting ribbon traffic direction；
The bore of the buncher of toroidal is 4mm；
The number of final yarn obtained is 60 English branch, and bar evenness CV value is 21%, and+50% slubbing number is 324
A/km, -50% details number are 28/km.
Embodiment 4
A kind of Yarn spinning method of super draft, substantially with embodiment 1, the difference is that, having the twirl ribbon twist is 20
The drafting multiple of twirl/m, quantification of 15g/5m, first break draft area and front draft zone is respectively 5 times and 62 times, first break draft area, middle drawing-off
The total draft multiple of area and front draft zone is 310 times；
The linear velocity of front roller is 6759mm/min, and the first middle roller is identical as the linear velocity of the second middle roller；
The distance between double cushion rubber jaws and 1 jaw of rear roller in first break draft area are 15mm, the friction in first break draft area
Power circle is to have twist ribbon length 77.2% in the draft area along there is the length for twisting ribbon traffic direction；
The distance between double cushion rubber jaws and 17 jaw of front roller in front draft zone are 15mm, the friction in front draft zone
Power circle is to have twist ribbon length 77.2% in the draft area along there is the length for twisting ribbon traffic direction；
Compacting element is fixed buncher 9；
Buncher 9 is roller shape, and the circumferential surface of roller is trapezoidal, trapezoidal bottom around groove, the cross section of groove is equipped with
The notch and slot bottom of groove are respectively corresponded with upper bottom, length is respectively 3mm and 1mm.
The number of final yarn obtained is 40 English branch, and bar evenness CV value is 15.1%, and+50% slubbing number is
200/km, -50% details number is 11/km.
Claims (10)
1. a kind of Yarn spinning method of super draft, it is characterized in that: will have twist ribbon successively pass through first break draft area, middle draft area and
Front draft zone respectively in first break draft area and front draft zone using double Apron Drafts, while being gathered and being controlled in middle draft area
Its drafting multiple is 1 to realize super draft；
It is free zone, front roller nip in the front draft zone between rear roller jaw and double cushion rubber jaws in the first break draft area
It is free zone between double cushion rubber jaws, the free zone refers to the region of zerofriction force effect.
2. a kind of Yarn spinning method of super draft according to claim 1, which is characterized in that the first break draft area and before lead
The drafting multiple for stretching area is respectively 5~7 times and 51.6~62 times, and the first break draft area, middle draft area and front draft zone are always led
Stretching multiple is 310~430.5 times.
3. a kind of Yarn spinning method of super draft according to claim 1, which is characterized in that double in the first break draft area
The distance between cushion rubber jaw and rear roller jaw are 5~15mm, and the double cushion rubber jaws and front roller in the front draft zone clamp
The distance between mouth is 5~15mm.
4. a kind of Yarn spinning method of super draft according to claim 1, which is characterized in that the first break draft area or before lead
Stretch friction field in area along have the length for twisting ribbon traffic direction be have in the draft area twist ribbon length 77.2~
88.6%.
5. a kind of Yarn spinning method of super draft according to claim 1, which is characterized in that before the drawing-off, have twirl fine
The twist for tieing up item is 5~20 twirls/m, quantification of 15~30g/5m.
6. a kind of Yarn spinning method of super draft according to claim 1, which is characterized in that the first break draft area is a pair
Region between roller and rear roller and a pair of first medium rubber roller and the first middle roller afterwards；
The middle draft area is between a pair of first medium rubber roller and the first middle roller and a pair of second medium rubber roller and the second middle roller
Region；
The front draft zone is the region between a pair of second medium rubber roller and the second middle roller and a pair of of front leather roller and front roller；
Each pair of roller and roller are arranged up and down.
7. a kind of Yarn spinning method of super draft according to claim 6, which is characterized in that in first break draft area using double glue
Enclose the implementation of drawing-off are as follows:
First top-pin rack and rear lower pin bar after first break draft area is arranged and arranges up and down and is mutually matched, while under rear lower pin bar side
Side's setting backward pull device, then will after gluing snare on the first medium rubber roller and rear top-pin rack, afterwards lower cushion rubber cover the first middle roller,
Afterwards on lower pin bar and backward pull device, the yarn patch of lower pin bar after cushion rubber is tensioned and is close to down after the position of control backward pull device makes
Conjunction face, the yarn binding face of upper cushion rubber and rear lower cushion rubber is bonded to each other after the position of top-pin rack and rear lower pin bar makes after control；
In front draft zone using the implementation of double Apron Drafts are as follows:
Arrangement up and down and mutually matched preceding top-pin rack and preceding lower pin bar first are set in front draft zone, while under preceding lower pin bar side
Side's setting forward pull device, then by preceding gluing snare on the second medium rubber roller and preceding top-pin rack, front lower cushion rubber cover the second middle roller,
On preceding lower pin bar and forward pull device, the yarn patch of lower pin bar before the position of control forward pull device is tensioned front lower cushion rubber and is close to
Conjunction face, the yarn binding face of upper cushion rubber and front lower cushion rubber is bonded to each other before the position of top-pin rack and preceding lower pin bar makes before controlling.
8. a kind of Yarn spinning method of super draft according to claim 7, which is characterized in that after described top-pin rack and it is rear under
The shape for selling stick distinguishes the same top-pin rack and preceding lower pin bar；The yarn binding face of the preceding top-pin rack and preceding lower pin bar is all by plane
It is formed with convex cambered surface.
9. a kind of Yarn spinning method of super draft according to claim 8, which is characterized in that gathered in middle draft area
Implementation are as follows: between the first medium rubber roller and the first middle roller and the second medium rubber roller and the second middle roller setting gather member
Part；
The compacting element is buncher that is fixed or rolling；
The buncher is roller shape or toroidal, and the circumferential surface of roller is trapezoidal, ladder around groove, the cross section of groove is equipped with
The bottom of shape and upper bottom respectively correspond the notch and slot bottom of groove, and length is respectively 3~6mm and 1~4mm, bell-mouthed bore
For 2~4mm；
The quantity of roller shape buncher is 2, is located at and twists above and below ribbon traffic direction and respectively correspond
Close to the second middle roller jaw and the first middle roller jaw；
The quantity of toroidal buncher is 1, close to the second middle roller jaw.
10. a kind of Yarn spinning method of super draft according to claim 9, which is characterized in that the linear speed of the front roller
Degree is 6759~36500mm/min, and first middle roller is identical as the linear velocity of the second middle roller.
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| GB745615A (en) * | 1953-12-21 | 1956-02-29 | Tmm Research Ltd | Improvements in the drafting apparatus of textile spinning machines |
| US3341901A (en) * | 1965-08-16 | 1967-09-19 | Kitamura Shinzo | Long apron type draft apparatus used in textile machines |
| US4680833A (en) * | 1985-05-07 | 1987-07-21 | NPK "Textiling Maschinostroene" | Drawing apparatus |
| JP3085110B2 (en) * | 1994-11-14 | 2000-09-04 | 豊和工業株式会社 | Spinning machine draft device |
| CN2623708Y (en) * | 2003-05-28 | 2004-07-07 | 山东同大纺织机械有限公司 | Four-roller three-apron drafting mechanism for spinning machine |
| CN2623707Y (en) * | 2003-05-28 | 2004-07-07 | 山东同大纺织机械有限公司 | Four-roller four-apron drafting mechanism for spinning machine |
| CN2685363Y (en) * | 2004-03-05 | 2005-03-16 | 山东同大纺织机械有限公司 | Four-apron drafting system for spinning frame |
| CN201220987Y (en) * | 2008-07-09 | 2009-04-15 | 东台纺织机械有限责任公司 | High drafting device for ring spinning frame |
| CN107237014A (en) * | 2017-06-28 | 2017-10-10 | 东华大学 | Centralization type spun yarn Super-high-draft device and spinning process |
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2018
- 2018-11-21 CN CN201811390391.7A patent/CN109610053B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB745615A (en) * | 1953-12-21 | 1956-02-29 | Tmm Research Ltd | Improvements in the drafting apparatus of textile spinning machines |
| US3341901A (en) * | 1965-08-16 | 1967-09-19 | Kitamura Shinzo | Long apron type draft apparatus used in textile machines |
| US4680833A (en) * | 1985-05-07 | 1987-07-21 | NPK "Textiling Maschinostroene" | Drawing apparatus |
| JP3085110B2 (en) * | 1994-11-14 | 2000-09-04 | 豊和工業株式会社 | Spinning machine draft device |
| CN2623708Y (en) * | 2003-05-28 | 2004-07-07 | 山东同大纺织机械有限公司 | Four-roller three-apron drafting mechanism for spinning machine |
| CN2623707Y (en) * | 2003-05-28 | 2004-07-07 | 山东同大纺织机械有限公司 | Four-roller four-apron drafting mechanism for spinning machine |
| CN2685363Y (en) * | 2004-03-05 | 2005-03-16 | 山东同大纺织机械有限公司 | Four-apron drafting system for spinning frame |
| CN201220987Y (en) * | 2008-07-09 | 2009-04-15 | 东台纺织机械有限责任公司 | High drafting device for ring spinning frame |
| CN107237014A (en) * | 2017-06-28 | 2017-10-10 | 东华大学 | Centralization type spun yarn Super-high-draft device and spinning process |
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| CN109610053B (en) | 2020-07-28 |
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