CN101270514B - Carding and drafting method in cotton and chemical fibre fore-spinning technique - Google Patents
Carding and drafting method in cotton and chemical fibre fore-spinning technique Download PDFInfo
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- CN101270514B CN101270514B CN2008100371097A CN200810037109A CN101270514B CN 101270514 B CN101270514 B CN 101270514B CN 2008100371097 A CN2008100371097 A CN 2008100371097A CN 200810037109 A CN200810037109 A CN 200810037109A CN 101270514 B CN101270514 B CN 101270514B
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Abstract
Cotton and a carding drafting method in a chemical fiber fore-spinning technique belong to the technical field of fiber spinning. In the invention, a plurality of pairs of drafting rolls with band saws are adopted to carry out carding and drafting on a feed cotton layer; every two pairs of drafting rolls form a carding drafting unit; the rotating speeds of the two pairs of drafting rolls are different; each drafting roll is a drive drafting roll; the band saws on each drafting roll carry out drafting on a cotton sliver simultaneously when carrying out carding on the cotton silver; carding, impurity removing and drafting are simultaneously carried out through adjusting the rotating speeds of each pair of drafting rolls. A vibrant supporting part is arranged below a cotton sliver drafting area; the impurities and short fibers in the drafting cotton layer are shaken down by the supporting part. The invention combines the existing cotton carding and drawing drafting as one working procedure, thus greatly simplifying the technique flows.
Description
Technical field
The present invention relates to a kind of combing drafting method, the combing drafting method in particularly a kind of cotton and the chemical fibre fore-spinning technique belongs to the fibrous woven technical field.
Background technology
In the at present main spinning method, comb and parallel cotton fibers prior to spinning, drafting and combing are independently three operations of conduct respectively.Wherein adopt carding machine that cotton layer is carried out combing and finish carding step, be specially: at first, the cotton layer of feeding is under the gripping of giving cotton roller and feed plate, and the licker-in of rotation is cut apart feeding cotton layer, shredding and removal of impurities.The rotation cylinder of card clothing is with in cotton layer continuous feeding then, and when process was with the securing cover plate of needle plate, two dial pin teeth produced rubbing action to fiber, eliminate interfibrous lateral ties, make fibre bundle be separated into single fiber.And formation sliver output.
Adopt drawing frame that sliver is carried out drawing-off and finish mixing in doubling step, be specially: 1) sliver makes yarn from the coarse to fine by the revolution roller of the different speed ratios in front and back, the essence of drafting process is to realize moving of fiber relative position, and the redistribution of fiber on big length fragment.Friction between friction between fiber and the fiber and fiber and the drafting unit causes straightening of fibers parallel and axially rearrange along sliver.The purpose of roller draft has two, from the aspect of amount, is the number of fiber that reduces in the strip cross section, makes strip from the coarse to fine; From the aspect of matter, be the crotch of eliminating fiber in the strip, it is stretched, and make fiber along strip axially parallel orientation.2) in present Drawing Drafting Process, bottom roll is the active drawing roller, drives the sliver motion, and top roller is the rubber roller that compresses, passive rotation when moving with sliver.Because last bottom roll to the pressure of sliver and the frictional force between them, has influenced the quality of drafting of sliver.Fricative heat has also limited draft speed and has further improved.3) in present Drawing Drafting Process, a fixed pressure rod is housed above main drawing area, it is a non-rotating semicircle roller or segmented-rod, the two ends of pressure bar are enclosed within on the axle sleeve of upper glue roller with a saddletree, and swing around the center of rubber roll.
Adopt combing machine that cotton layer is carried out combing and finish mixing in doubling step, be specially: 1) adopt to grip combing, promptly fiber and the teasing needle tooth that is gripped by jaw produces relative motion, makes the fiber that is held straight by the pin stripping fork, fiber that is not held or assorted defect become noil by under the pin stripping fork.2) work characteristics of gripping combing parts is that combing effect is for carrying out periodically off and on.
Find by literature search, the Chinese patent name is called " improvement of combing textile raw material and relevant device ", application number/patent No.: 96180244, this patent content is: " a kind of carding machine that a series of rollers of cooperating with each other are arranged; each roller has tooth and the sweptback tooth that turns forward; each roller is with the speed rotation opposite with its previous roller; and the superficial velocity rotation faster significantly than its previous roller arranged there is at least one slower input section and one deferent segment faster thereby make in described serial roller.This machine has the staggered ring gear of precise structure, increases the fibre weight of being sent into by the slower input of this series, and is implemented in the benefit that this serial output has (possible) bigger output quantity.When fiber when this series roller, combing is carried out in the mode of straight line basically.Best, at least in the slower input section of this series, each roller has forward-backward tooth, and they and this roller special outside as a whole.A kind of structure comprises a device, and fiber is removed by the port of export of this series roller under high speed.This device comprises that a doffer, first takes out roller and second and takes out roller, and takes out roller and first at doffer, second and take out the air-spray that passes through between the roller." a series of rollers of cooperating with each other of this patent employing, each roller rotates with the speed opposite with its previous roller, and the superficial velocity rotation faster significantly than its previous roller arranged, thereby makes the fiber by roller obtain combing.This carding method and general comb and combing method compare, and efficient is higher, but carding quality is relatively poor, and the bar mass dryness fraction of fiber is relatively poor, and industrial quarters does not adopt the carding device of this method yet at present.
Summary of the invention
The present invention is directed to above shortcomings in the prior art, combing in a kind of cotton and chemical fibre fore-spinning technique drafting method is provided, making it that an operation is merged in existing comb and parallel cotton fibers prior to spinning and drafting drawing-off, simplified technological process greatly, is to the innovation on the present spinning method principle.
The present invention is achieved by the following technical solutions, the present invention is when the cotton layer of feeding, adopt many drawing roller to carry out comb and parallel cotton fibers prior to spinning and drawing-off to feeding cotton layer to the band saw tooth, per two counter extensioin rollers are formed a combing drafting unit, the rotating speed difference of two counter extensioin rollers, reach the purpose that cotton layer is carried out combing, removal of impurities and drawing-off simultaneously by the rotating speed of regulating every counter extensioin roller, the present invention merges into an operation with comb and parallel cotton fibers prior to spinning and drafting drawing-off, has simplified technological process greatly.
Each drawing roller among the present invention is initiatively drawing roller, and the sawtooth on each drawing roller carries out the drawing-off of sliver when sliver is carried out combing.
The present invention is provided with the holder part of a vibration below the drafting of sliver district, this holder part shakes impurity and the short flannel in the cotton layer of drawing-off fall.
Below the present invention is further illustrated, the specific implementation step is as follows:
The first step: the drawing roller that the cotton layer of feeding enters first pair of band saw tooth, the shape of sawtooth adopts the zigzag fashion that thorn rolls in the present carding machine on the drawing roller, and the sawtooth height is adjusted according to the thickness of cotton layer, and cotton layer thickness is big more, and sawtooth is high more.Along with the rotation of drawing roller, sawtooth inserts the cotton layer of feeding, and the cotton layer is sent to the second counter extensioin roller;
Second step: after the cotton layer of feeding enters the drawing roller of second pair of band saw tooth, rotation along with drawing roller, sawtooth inserts the cotton layer of feeding, the rotating speed of setting the second counter extensioin roller is higher than the rotating speed of the first counter extensioin roller, promptly the linear velocity of the second counter extensioin roller and cotton layer contact position is higher than the linear velocity of the first counter extensioin roller and cotton layer contact position, and cotton layer is by combing and drawing-off; The rotating ratio of the second counter extensioin roller and the first counter extensioin roller (i.e. the draw ratio of this combing drafting unit) is adjusted according to the drawing of fiber technological requirement.Distance between the second counter extensioin roller and the first counter extensioin roller is regulated according to the length of fiber.
The 3rd step: between first pair and the second counter extensioin roller cotton layer below, be provided with the holder part that vibration frequency is equal to or greater than 500Hz, by the vibration solenoid actuated, this holder part shakes impurity and the short flannel in cotton layer of the drawing-off fall;
The 4th step: first pair and the second counter extensioin roller are formed first combing drafting unit, the cotton layer of its output is by entering second combing drafting unit behind the buffering area, its combing drafting process is identical with first combing drafting unit, but the sawtooth on the drawing roller of second combing drafting unit is shorter than the sawtooth of first combing drafting unit;
The 5th step: the combing drafting unit outlet in the end of the cotton layer of output gathered is sliver.
Among the present invention, can select combing drafting unit more than two groups for use according to the quality requirement of output sliver.
The present invention adopts many drawing roller to the band saw tooth to carry out comb and parallel cotton fibers prior to spinning and drawing-off, reach the purpose of fiber being carried out simultaneously combing, removal of impurities and drawing-off, it merges into an operation with existing comb and parallel cotton fibers prior to spinning and two operations of drafting, simplified technological process greatly, and can be according to the quality requirement of output sliver, select the quantity of combing drafting unit flexibly, improved production efficiency greatly.Compare with existing technology, can enhance productivity one times.
Description of drawings
Fig. 1 is the flow chart of the inventive method.
The specific embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present invention is described further.
As shown in Figure 1, per two counter extensioin rollers are formed a combing drafting unit among the figure, the cotton layer of its output is by entering next combing drafting unit behind the buffering area, the combing drawing-off principle of each combing drafting unit is identical, just the sawtooth on the drawing roller is shorter and shorter, need adjust according to kind, the thickness of cotton layer.Each drawing roller is by motor-driven, and its speed can be regulated according to technological requirement.By fiber sawtooth combing on the also drafted roller in drafted of the first counter extensioin roller and the second counter extensioin roller, the distance between the second counter extensioin roller and the first counter extensioin roller is regulated according to the length of fiber.The below in drafting of sliver district is provided with the holder part of a vibration, by the vibration solenoid actuated.
Embodiment 1:
Adopting has related parameter as follows when this invention is concrete to be implemented:
1) drafting multiple of each combing drafting unit is according to following distribution: 1.2*1.4*1.7*2.2*2.7*3.3*3.0*2.5*2.2=923.7, if wish to obtain the higher-quality carded sliver, can increase combing drafting unit number, the drafting multiple of each combing drafting unit also can be done suitable adjustment.Because going up drawing roller in the existing drawing-off mode is passive driving, is active drive and go up drawing roller among the present invention, therefore the highest sliver exporting speed can improve greatly, can reach 1200 meters/minute.
2) about the diameter D=30mm of drawing roller, the zigzag fashion that thorn rolls in zigzag fashion on the drawing roller and the present carding machine is similar, the sawtooth operating angle α on the drawing roller=75 °-86 °; Close 8 grooves of transverse teeth/25.4mm, vertically close 4 grooves of tooth/25.4mm; Transverse tooth thickness b=0.2mm; The high h=2.7-4.0mm of sawtooth, sawtooth height overall H=5.6-5.85mm.The sawtooth height of respectively organizing drawing roller subsequently should reduce gradually, and tooth is close should to be increased gradually.
3) the width Preliminary design of vibration holder part is 15mm, and vibration frequency is approximately 500Hz, and amplitude is approximately 0.1mm.
After the concrete enforcement of this invention, compare with existing comb and parallel cotton fibers prior to spinning method, owing to adopt multistage continuous combing, so short flannel is few, flock utilization rate height.
Embodiment 2:
This invention also can be applicable to the combing drawing-off of lap, has related parameter as follows when specifically implementing:
1) drafting multiple of each combing drafting unit is according to following distribution: 1.2*1.5*1.9*2.4*3.0*2.7*2.5*2.2*1.8*1.5=987.3, if wish to obtain the carded sliver of combing quality, can increase combing drafting unit number, the drafting multiple of each combing drafting unit also can be done suitable adjustment.
2) about the diameter D=30mm of drawing roller, the zigzag fashion of cylinder is similar in zigzag fashion on the drawing roller and the present carding machine, and each sawtooth height of organizing drawing roller reduces gradually, and tooth is close to be increased gradually.
3) the width Preliminary design of vibration holder part is 15mm, and vibration frequency is approximately 800Hz, and amplitude is approximately 0.1mm.
This inventive embodiment 2 compares with existing comb and parallel cotton fibers prior to spinning method, owing to adopt more multistage continuous combing, so the flock quality is higher.
Embodiment 3:
This invention also can be applicable to the sliver combing drawing-off that eddy current spins, and has related parameter as follows when specifically implementing:
1) drafting multiple of each combing drafting unit is according to following distribution: 2.0*2.4*3.0*2.7*2.5*2.2=78.4.
2) about the diameter D=30mm of drawing roller, the zigzag fashion of cylinder is similar in zigzag fashion on the drawing roller and the present combing machine, and each sawtooth height of organizing drawing roller reduces gradually, and tooth is close to be increased gradually.
3) the width Preliminary design of vibration holder part is 15mm, and vibration frequency is approximately 1200Hz, and amplitude is approximately 0.1mm.
This inventive embodiment 3 compares with existing drafting method, owing to adopt continuous combing drawing-off, so the flock quality is higher.
Claims (4)
1. the combing drafting method in cotton and the chemical fibre fore-spinning technique, it is characterized in that: adopt many drawing roller to carry out comb and parallel cotton fibers prior to spinning and drawing-off feeding cotton layer to the band saw tooth, per two counter extensioin rollers are formed a combing drafting unit, the rotating speed difference of two counter extensioin rollers, each drawing roller is initiatively drawing roller, sawtooth on each drawing roller carries out the drawing-off of sliver when sliver is carried out combing, reach by the rotating speed of regulating every counter extensioin roller cotton layer is carried out combing, removal of impurities and drawing-off simultaneously; Be provided with the holder part of a vibration below the drafting of sliver district, this holder part shakes impurity and the short flannel in the cotton layer of drawing-off fall.
2. the combing drafting method in cotton according to claim 1 and the chemical fibre fore-spinning technique is characterized in that concrete steps are as follows:
The first step: the drawing roller that the cotton layer of feeding enters first pair of band saw tooth, the height of sawtooth is adjusted according to the thickness of cotton layer on the drawing roller, and cotton layer thickness is big more, sawtooth is high more, along with the rotation of drawing roller, sawtooth inserts the cotton layer of feeding, and the cotton layer is sent to the second counter extensioin roller;
Second step: after the cotton layer of feeding enters the drawing roller of second pair of band saw tooth, rotation along with drawing roller, sawtooth inserts the cotton layer of feeding, the rotating speed of setting the second counter extensioin roller is higher than the rotating speed of the first counter extensioin roller, promptly the linear velocity of the second counter extensioin roller and cotton layer contact position is higher than the linear velocity of the first counter extensioin roller and cotton layer contact position, and cotton layer is by combing and drawing-off;
The 3rd step: between first pair and the second counter extensioin roller cotton layer below, be provided with the holder part that vibration frequency is equal to or greater than 500Hz, by the vibration solenoid actuated, this holder part shakes impurity and the short flannel in cotton layer of the drawing-off fall;
The 4th step: first pair and the second counter extensioin roller are formed first combing drafting unit, the cotton layer of its output is by entering second combing drafting unit behind the buffering area, second combing drafting unit combing drafting process is identical with first combing drafting unit, but the sawtooth on the drawing roller of second combing drafting unit is shorter than the sawtooth of first combing drafting unit;
The 5th step: the combing drafting unit outlet in the end of the cotton layer of output gathered is sliver.
3. the combing drafting method in cotton according to claim 1 and the chemical fibre fore-spinning technique, it is characterized in that the fiber sawtooth combing on the also drafted roller in drafted by the first counter extensioin roller and the second counter extensioin roller, the distance between the second counter extensioin roller and the first counter extensioin roller is regulated according to the length of fiber.
4. the combing drafting method in cotton according to claim 1 and the chemical fibre fore-spinning technique is characterized in that the combing drafting unit selects for use more than two groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100371097A CN101270514B (en) | 2008-05-08 | 2008-05-08 | Carding and drafting method in cotton and chemical fibre fore-spinning technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100371097A CN101270514B (en) | 2008-05-08 | 2008-05-08 | Carding and drafting method in cotton and chemical fibre fore-spinning technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101270514A CN101270514A (en) | 2008-09-24 |
| CN101270514B true CN101270514B (en) | 2011-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100371097A Expired - Fee Related CN101270514B (en) | 2008-05-08 | 2008-05-08 | Carding and drafting method in cotton and chemical fibre fore-spinning technique |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422259B (en) * | 2013-09-09 | 2016-05-11 | 昆山胜昱无纺布有限公司 | Nonwoven streamline |
| CN103911691B (en) * | 2014-04-03 | 2017-05-31 | 南通市乐悦实业有限公司 | A kind of cotton carding kinetic energy knot screen |
| CN103966703B (en) * | 2014-05-26 | 2016-08-24 | 苏州东茂纺织实业有限公司 | Miscellaneous structure is filtered in a kind of impact type comb and parallel cotton fibers prior to spinning |
| CN106628432B (en) * | 2017-01-05 | 2019-04-30 | 博众精工科技股份有限公司 | A kind of harness carding mechanism |
| CN107447300B (en) * | 2017-08-10 | 2019-05-21 | 徐州锦丰纺织有限公司 | Carding machine is used in a kind of weaving of efficient adjustable |
| CN111519285B (en) * | 2020-04-10 | 2022-01-04 | 江南大学 | Method for testing internal quality of sliver and carding device thereof |
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- 2008-05-08 CN CN2008100371097A patent/CN101270514B/en not_active Expired - Fee Related
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Granted publication date: 20110601 Termination date: 20140508 |