CN111188109A - Filament staple fiber composite spinning method, spinning equipment and composite yarn - Google Patents
Filament staple fiber composite spinning method, spinning equipment and composite yarn Download PDFInfo
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- CN111188109A CN111188109A CN201811359301.8A CN201811359301A CN111188109A CN 111188109 A CN111188109 A CN 111188109A CN 201811359301 A CN201811359301 A CN 201811359301A CN 111188109 A CN111188109 A CN 111188109A
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
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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
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/01—Natural animal fibres, e.g. keratin fibres
- D10B2211/02—Wool
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
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- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention relates to a filament short fiber composite spinning method, equipment and composite yarn, wherein the equipment comprises the following components: the filament tension control device is arranged in front of the front roller and used for controlling the tension of the filament; the filament position control device is arranged between the front roller and the tension control device and used for controlling the position of the filament, the surface of the filament position control device is provided with a grooved drum type groove, the filament is enabled to reciprocate left and right through the rotation of a guide wheel, or a yarn guide wheel of the device can reciprocate and is fed into the front roller in a dynamic mode. Based on filament tension control and feeding synergistic effect on a dynamic position, partial filaments are wrapped on the surface of the yarn in finished yarn, and partial filaments are buried in the yarn body, so that a novel short fiber and filament composite structure and composite yarn are formed. The composite yarn processed by the method and the equipment has strong cohesion of filament and staple fibers, obviously reduced yarn hairiness, high strength, excellent fuzzing and pilling resistance of the knitted fabric, low scratchiness of wool, good hand feeling and stable size.
Description
Technical Field
The invention relates to the technical field of ring spinning, in particular to a filament and short fiber composite spinning method, corresponding spinning equipment and a prepared composite yarn.
Background
With the continuous development of textile material technology, people have more and more demands on the style and style of the garment materials. Besides changing the combination mode of the fibers in the yarn, the component proportion of the fibers, the twisting mode of the fibers and other means to change the structure and the characteristics of the finished yarn so as to achieve the purposes of changing and improving the performance of the fabric, various novel spinning methods are also endless, such as siro-field spinning, siro spinning, compact spinning, cable type spinning, core-spun spinning, embedded spinning and the like, the spinning methods obviously improve the quality of the yarn and greatly meet the requirements on the performance of various fabrics. The spinning methods of Sirofil spinning, embedded spinning, core-spun spinning and the like relate to short fibers and filament fibers, and belong to the category of filament short fiber composite spinning.
At present, most of filament and short fiber composite spinning methods are that on a ring spinning frame, a group of roving yarns are fed from a rear roller of a drafting mechanism, filaments are fed from a front roller of the drafting mechanism, short fiber strands drafted by the drafting mechanism and filaments are output from a clamping point of the front roller together, and composite yarns are twisted and synthesized under the rotation action of a steel wire ring, so that the yarns have some characteristics of the filaments and the short fibers, and the defects of the traditional yarns are overcome. The sirofil spinning is to feed a filament and a roving strand at a certain distance to realize the mutual wrapping between the filament and the short fiber strand into yarn; the core-spun yarn is a composite yarn structure which is formed by feeding a filament from the middle of one or two roving strands and winding short fibers outside by taking the filament as a core wrap; the embedding spinning is to feed two filaments into a front roller at a certain interval, feed two short fiber roving yarns into the front roller at a certain interval respectively in a bilateral symmetry manner, pre-wrap the filaments on one side and the short fiber strands on the side, and then combine and twist the filaments and the composite yarn strands pre-wrapped on the other side to form the composite yarn with a more complex structure.
However, the above composite spinning method requires that the positions of the filaments and the short fiber strands are relatively fixed, the positions of the filaments relative to the short fibers in the obtained composite yarn structure are relatively fixed, the filaments are either completely covered on the outer side of the short fibers or completely positioned in the center of the short fiber yarns, the produced composite yarns have the defect of insufficient cohesive force between the filaments and the short fibers, and the filaments and the short fibers easily slide relatively in subsequent processing, so that not only is the weaving efficiency influenced, but also the quality and the performance of the yarns and the fabric are influenced to a certain extent.
For example, patent publication No. CN 107190391A, entitled "spinning mechanism and method for natural convergence, coupled wrapping and gradual change of filament bundle tension" and its use, discloses a spinning mechanism, which comprises a tension controller capable of precisely adjusting the tension of filament bundle and making the natural convergence point of filament bundle and short fiber strand move up and down, a buncher with positioning and spreading functions, and a tension regulating mechanism, and can produce coupled gradual change composite yarn with gradually changed period or period color, apparent fiber component appearance and mechanical property. Patent publication No. CN 102787411B "a front-mounted over-feed composite spinning device with left and right deflection, process and application" introduces a composite spinning device capable of wrapping short fibers with filament or yarn at back-and-forth changing angle and over-feed amount, and the position of the deflection yarn guide hook is adjusted to wrap the filament or yarn with short fiber strands at different angles to form over-feed composite yarns with different effects and performances. Patent publication No. CN107043969A ring composite spinning method of a type membrane filamentation introduces a ring composite spinning method of a type membrane filamentation, the method sets up the membrane cutting drafting assembly above each drafting assembly of the ring spinning frame, put and form the cutting zone between cutting roll and the resistant circle of the cutting assembly of the membrane, cut and form the banded multifilament, filamentate the type membrane, the multifilament is drafted through the first, second drafting zone sequentially, increase the intensity of the filament in the multifilament, refine the strand silk and obtain and receive the microfilament; the nano microfilament and the conventional short fiber strand are converged and output through a front roller jaw, twisting is carried out to form the composite yarn, the inside of the composite yarn is fully mixed with the short fiber in a holding manner, the outer layer of the composite yarn is wrapped with the nano microfilament in an exposed manner, and the filament, the nano fiber and the conventional short fiber are uniformly mixed and fully held in a holding manner during the composite spinning.
In order to solve the problem of relative sliding between filaments and short fibers, patent publication No. CN 102677248B "a forced internal and external transfer type filament composite ring spinning method" introduces a ring spinning method of short fiber roving and filaments, which increases the internal and external transfer between filaments and short fibers by the relative movement of two short fiber rovings and the reciprocating motion of the filaments, thereby realizing the enhancement of mutual cohesion, but the method adopts two short fiber rovings, has high cost and complex device, and simultaneously the quality of the yarn can be reduced by the continuous movement of the short fiber rovings in the drafting process. The ring spinning technology provided by the invention adopts a short fiber roving, the position of which is kept unchanged in the spinning process, and the position of the filament in the yarn body and the proportion of the filament on the surface yarn are adjusted by accurately controlling the movement of the position of the filament and the tension of the filament, so that the cross structure that the filament in the composite yarn is partially wrapped on the surface of the yarn body and partially buried in the yarn body is realized, and the cohesion effect between the filament and the short fiber is enhanced. Meanwhile, the surface and physical properties of the yarn, such as yarn hairiness, can be improved by adjusting the proportion of the filaments in the surface yarn. The yarn and the fabric prepared by the method have the advantages of high strength, less hairiness, uniform yarn levelness, good wear resistance, fuzzing and pilling resistance, low scratchiness of the wool fabric, good size stability and the like.
Disclosure of Invention
The invention aims to provide a processing method and equipment for filament and short fiber composite spinning of a ring spinning frame, which are used for improving the structure of yarn, improving the cohesive force between filament and short fiber, and improving the performance of filament and short fiber composite yarn and the performance of a prepared fabric.
The invention provides a processing method of filament and short fiber composite spun yarn, which comprises the following specific processing processes: feeding short fiber roving strands from a rear roller of a ring spinning frame, and outputting the short fiber roving strands from a front roller after drafting; the filament is fed from any position of the front roller, passes through the tension control device, the position control device and the movement control device, is converged with the drafted fiber strand at the jaw of the front roller, and obtains twist through the action of the steel wire ring of the ring spinning frame, thereby forming the filament and short fiber composite yarn with the special structure, wherein part of the filament is wrapped on the surface of the yarn body, and part of the filament is positioned in the yarn body.
Preferably, the short fiber can be natural fiber or chemical fiber, is particularly suitable for wool and wool blended fiber and is used for producing high-count bright and clean functional yarn;
preferably, the filament can be monofilament or multifilament, and the fineness of the filament is determined according to the yarn count and the product requirement;
preferably, the filament is partially wrapped on the surface of the yarn body and is partially embedded in the yarn body;
preferably, the filament can be fixed between the middle feeding roller and the front feeding roller, and before the filament is fed into the front feeding roller, the filament feeding device further comprises a tension control device, a position control device and a movement control device, wherein the tension control device is used for accurately controlling the tension and the corresponding position when the filament is fed;
preferably, the filament can continuously move between the front rollers during feeding, and before the filament is fed into the front rollers, the filament feeding device also comprises a movement control device which can control the filament to regularly move within a certain range, and the reciprocating movement of the filament feeding position during spinning can be realized by the rotation of the yarn guide wheel and the surface reciprocating motion groove, and can also be realized by driving the yarn guide wheel to reciprocate left and right through the driving device;
preferably, the filament movement ranges from 0 to 32 mm;
correspondingly, the invention also provides processing equipment for the filament and short fiber composite spinning of the ring spinning frame, which comprises: a tension control device arranged in front of the front roller and used for controlling the tension of the filament during feeding; and the filament position control device and the movement control device are arranged between the front roller and the tension control device and are used for controlling the position of the filament during feeding. Through the device, the left and right reciprocating motion can be realized when the filament is fed. The surface of the rotatable yarn guide wheel of the device is provided with a reciprocating groove or the yarn guide wheel can reciprocate left and right. The processing equipment is characterized by comprising a front roller, a middle roller and a rear roller, wherein short fiber roving strands are fed from the rear roller of the ring spinning frame and are output from the front roller after being drafted; feeding filaments from any position of the front roller; the filament and the drafted fiber strand are converged at the jaw of the front roller, and twist is obtained under the action of a steel wire ring of a ring spinning frame, so that the composite yarn is formed.
Preferably, the device also comprises a tension control device arranged before the front roller is installed and used for controlling the tension when the filament is fed; the tension control device is composed of a smooth cylinder and a cylindrical rubber roller, and can hold one end of the filament.
Preferably, the device also comprises a position control device arranged between the front roller and the tension control device and used for controlling and adjusting the position of the filament during feeding, wherein the position of the filament is fixed;
preferably, the device also comprises a movement control device arranged between the front roller and the tension control device and used for controlling the position of the filament when the filament is fed, wherein the position of the filament is continuously moved;
the moving control device is provided with chutes with different widths, and a spiral reciprocating groove, the width and the depth of the groove are constantly changed, the groove is made of plastic, the groove is light in weight, high in hardness and smooth in surface, filaments pass through the groove, the groove can rotate circumferentially due to the friction contact force between the filaments and the groove, the filaments can change regularly in position within a certain range along the spiral reciprocating groove, and the length of the groove along the axial direction of the groove is the change range of the position of the filaments.
According to one aspect of the present invention, there is provided a composite yarn comprising filaments and a staple fiber bundle, wherein the filaments are partially wrapped around the outer surface of the staple fiber bundle, and a part of the filaments are embedded in the staple fiber bundle.
According to an embodiment of the present invention, the staple fiber assembly is a natural fiber or a chemical fiber.
According to an embodiment of the present invention, the staple fiber strands are wool fiber strands, and/or the filaments are nylon filaments.
According to another aspect of the present invention, there is provided a composite spinning method of filament and short fiber, using a ring spinning frame, for forming the composite yarn provided by the present invention, the spinning method comprising the steps of:
the short fiber strands are fed in by a back roller and output from a front roller after being drafted;
after passing through a tension control device and a position control device, the filaments are fed into a front roller, and the position control device drives the filaments to move along the direction of the central axis of the position control device;
the short fiber strands and filaments passing through the front roller are converged and enter a twisting and winding mechanism.
According to an embodiment of the invention, wherein the draft ratio of the filament between the tension control device and the front roller is in the range of 1 to 5.
According to an embodiment of the present invention, the position control device is a yarn guide wheel, the yarn guide wheel rotates around the central axis, and the yarn guide wheel is driven by a driving device to make the yarn guide wheel move back and forth along the direction of the central axis.
According to an embodiment of the invention, the drive means is a drive motor.
According to an embodiment of the invention, the position control device is a grooved drum structure, around the circumference of which a groove is provided.
According to an embodiment of the invention, the grooves are helical grooves of equal pitch, the pitch ranging from 0mm to 50 mm.
According to an embodiment of the present invention, the tension control device includes a first control member and a second control member that rotate around respective axes, and an outer peripheral surface of the first control member is in close contact with an outer peripheral surface of the second control member.
According to an embodiment of the present invention, one of the first control member and the second control member is a rubber roller, and the other of the first control member and the second control member is a stainless steel roller.
According to another aspect of the present invention, there is provided a ring spinning frame for producing the composite yarn provided by the present invention, comprising a spun yarn drafting system for transporting a sliver of staple fibers, a filament drafting system for transporting a filament, and a front roller, the filament drafting system comprising a position control device for controlling a feeding position of the filament and a tension control device for adjusting a tension of the filament, the tension control device being disposed upstream of the position control device, the front roller being disposed downstream of the position control device, the position control device having a central axis and being capable of guiding the filament to move in a direction of the central axis.
According to an embodiment of the present invention, the spun yarn drafting system includes a back roller and a middle roller, and the staple fiber sliver is fed by the back roller, passes through the middle roller, and is output by the front roller.
The processing method of the filament and short fiber composite spun yarn provided by the invention can solve the problems that in some composite spinning technologies, due to the structure that filament and short fiber strands are mutually wrapped, the position of the filament in the obtained composite yarn structure relative to the short fiber is relatively fixed, the produced composite yarn has insufficient cohesive force between the filament and the short fiber, the relative sliding between the filament and the short fiber is easy to occur in the subsequent processing, and the like. The yarn structure can not only enhance the cohesion effect between the long fibers and the short fibers, but also improve the basic performances of yarn strength, hairiness, evenness and the like, and the manufactured knitted fabric can obtain excellent fuzzing and pilling resistance, can reduce the scratchiness of wool, and can obtain good hand feeling and dimensional stability. The scheme of the invention is explained in the following by combining the drawings and specific examples.
Drawings
FIG. 1 is a schematic structural view of a filament and staple fiber composite yarn spun by the spinning method of the present invention;
FIG. 2 is a schematic drawing of the spinning process of example 1 of the present invention;
FIG. 3 is a schematic configuration diagram of a position control apparatus used in embodiment 1 of the present invention;
FIG. 4 is a schematic drawing of the spinning process of example 2 of the present invention;
FIG. 5 is a schematic configuration diagram of a position control apparatus used in embodiment 2 of the present invention;
wherein the reference numerals are as follows:
1. a filament; 2. A godet wheel;
3. a tension control device; 4. A position control device;
5. short fiber roving strands; 6. A back roller;
7. a middle roller; 8. A front roller;
9. compounding yarns; 10. A movement control device.
Detailed Description
The present invention will be described in detail below with reference to examples to make the features and advantages of the present invention more apparent. It should be noted that the examples are only for understanding the concept of the present invention and the scope of the present invention is not limited to only the examples listed herein.
Example 1
As shown in fig. 2, the drafting system of the ring spinning frame mainly comprises a front roller 6, a middle roller 7 and a front roller 8, the staple fiber roving strands 5 enter the drafting system from the rear roller 6, pass through the middle roller 7, are output from the front roller 8, and simultaneously, the filaments 1 are fed from the front roller 8. Before entering a front roller 8, the filament passes through a godet wheel 2, a tension control device 3 and a position control device 4 in sequence, the tension of the filament 1 and the position of the staple fiber roving strand 5 are accurately controlled through the tension control device 3 and the position control device 4, and finally the filament enters the front roller 8. The filaments 1 and the staple fiber roving strands 5 are delivered from the nip of the front roller 8, and a twist is obtained by the action of the traveller of the ring spinning frame, thus forming a composite yarn 9.
The position control device 4 is a movable yarn guide wheel as shown in fig. 3, a smooth semicircular yarn guide groove is arranged on the wheel surface, the filament 1 is conveyed to the front roller 8 through the yarn guide groove, and the position of the filament is accurately controlled. Meanwhile, the position control device 4 is also connected with a driving device which drives the yarn guide wheel to reciprocate left and right, thereby driving the filaments 1 to move in the same track.
Example 2
As shown in fig. 4, the staple fiber roving strand 5 enters the drafting system from the rear roller 6, passes through the middle roller 7, is output from the front roller 8, and simultaneously, the filament 1 is fed from the front roller 8. Before entering the front roller 8, the filament passes through a godet wheel 2, a tension control device 3 and a movement control device 10 in sequence, the tension of the filament 1 and the position of the staple fiber roving strand 5 are accurately controlled through the tension control device 3 and the movement control device 10, and finally the filament enters the front roller 8. The filaments 1 and the staple fiber roving strands 5 are delivered from the nip of the front roller 8, and a twist is obtained by the action of the traveller of the ring spinning frame, thus forming a composite yarn 9.
The structure of the movement control device 10 is shown in fig. 5, and is a fixed yarn guide wheel, a reciprocating spiral groove is formed on the wheel surface, the filament is transmitted in the spiral groove, and simultaneously, the filament can reciprocate simultaneously due to the guiding of the spiral groove, and regular position change occurs in a certain range.
The yarn guide wheel for the movement control device 10 can be made of materials with light texture, smooth surface and high hardness, such as plastics, and through the arrangement of the spiral grooves, the position of the filament can be changed while the filament is conveyed, an additional driving device is not needed, and the change range of the position of the filament can be determined according to the axial length of the yarn guide wheel, so that the position control of the filament is simpler and more convenient. Further, the depth and width of the spiral groove may also be in a continuously varying state, including periodic variation and non-periodic variation.
Example 3
The spinning process and apparatus are shown in figure 2. The filament is nylon filament, the short fiber is wool fiber, the spinning process is as follows:
step 1: feeding wool roving strands from a rear roller of a ring spinning frame, and outputting the wool roving strands from a front roller after drafting;
step 2: feeding nylon filaments from a front roller, controlling the feeding position of the filaments at a position 3mm away from the center of the wool roving by a filament position control device, and fixing the tension coefficient of the filaments to be 1.06; and step 3: the nylon filament and the drafted wool roving strand are converged at a nip of a front roller, and twist is obtained under the action of a steel wire ring of a ring spinning frame, so that the filament and short fiber composite yarn is formed.
As shown in figure 1, part of the nylon filaments in the wool and nylon composite yarn prepared by the process are wrapped on the surface of the yarn, part of the nylon filaments are buried in the yarn body, the combination of the nylon filaments and the wool short fibers is enhanced, the yarn strength is high, the hairiness is less, the yarn evenness is uniform, and the prepared wool knitted fabric can obtain excellent fuzzing and pilling resistance, can reduce the scratchiness of wool, and obtains good hand feeling and dimensional stability.
Application example
The spinning process of example 3 was used with 100% wool fiber as the starting material and 4Nm roving count. The ring spinning frame is a Zinser-451 ring spinning frame, the rotating speed of a spindle is 8,000r/min, the number of yarn branches is 60Nm, the twist of the yarn is 18.3T/in, the filament is positioned at the position 3mm away from the center of the wool fiber strand, and the tension coefficient of the filament is 1.06.
After the resulting wool composite yarn was allowed to stand for at least 24 hours under standard laboratory (20 + -2 deg.C and 65 + -2% RH), the tested yarn and its jersey performance data are presented in Table 1. Meanwhile, in order to compare the effects of the spinning method of the present invention, the performance data of the conventional ring spun pure wool yarn and the single knit thereof spun from the same raw material are also shown in table 1 as comparison data.
TABLE 1
Unless otherwise defined, all terms used herein have the meanings commonly understood by those skilled in the art.
The described embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of the present invention, and those skilled in the art may make various other substitutions, alterations, and modifications within the scope of the present invention, and thus, the present invention is not limited to the above-described embodiments but only by the claims.
Claims (12)
1. A filament and short fiber composite spinning method adopts a ring spinning frame, and is characterized in that roving strands of short fibers are fed from a rear roller of the ring spinning frame, filaments are fed from a front roller, the filaments and the drafted roving strands are converged at a front roller jaw, a novel yarn structure that part of the filaments are wrapped on the surface of yarns and part of the filaments are buried in a yarn body is formed by controlling the tension of the filaments and the position relative to the roving strands; the tension of the filament is adjusted and the position of the filament is changed by a tension control device and a position control device and a movement control device; the tension of the filaments and the position relative to the roving strands determine the position of the filaments in the final yarn during the yarn formation, which are interrelated; generally, when the tension of the filaments is small and the filaments are located at or near the center of the roving strand, the filaments tend to distribute in the yarn body; in contrast, filaments tend to wrap around the surface of the yarn; when the tension and the position change of the filament are cooperatively controlled, the change of the tension and the position of different filaments realizes the internal and external transfer of the filament in the staple fiber yarn body in the yarn forming process, so that the filament is continuously changed in position relative to the staple fiber strand in the yarn forming process, and a composite yarn with part of the filament wrapped on the surface of the staple fiber yarn body and part of the filament positioned in the staple fiber yarn body is formed; the different tensions of the filaments are realized by adjusting the draft ratio of the filaments through a tension control device, and in the yarn forming process, when the higher the draft ratio of the filaments is, the closer the position of the filaments is to the roving strand, the larger the proportion of the filaments wrapped in the short fiber yarn body is, and the smaller the internal and external transfer rates are; on the contrary, the ratio of the filament to be wrapped on the surface of the short fiber yarn body is large, and the internal and external transfer rate is large.
2. A composite spinning method according to claim 1, characterized in that the filaments are partly wrapped on the surface of the yarn body and partly embedded in the yarn body.
3. A composite spinning process of long staple fibers according to claim 1, characterized in that the draft ratio of the filaments is in the range of 1 to 5.
4. A composite spinning method according to claim 1, characterized in that the position of the filament relative to the roving strand is fixed, and the mutual shift of the centers of gravity of the filament and the roving strand during the yarn forming process is caused by the higher filament draft ratio and the adjustment of the center position of the filament and the roving strand, thereby causing the predetermined degree of internal and external shift of the filament in the body of the spun yarn.
5. A composite spinning method of long staple fibers as claimed in claim 1, wherein the position of the filament relative to the roving strand is periodically or non-periodically reciprocated left and right, and the movable range is 0 to 32mm from the center of the roving strand.
6. A composite spinning process according to claim 1 or 2, characterised in that the filaments are monofilaments or multifilaments; the short fiber is natural fiber or chemical fiber, preferably wool or wool blend fiber.
7. A filament and short fiber composite spinning device is a ring spinning frame and comprises a filament tension control device, a front roller and a back roller, wherein the filament tension control device is arranged in front of the front roller and used for controlling the tension of a filament during feeding; the filament position control and movement control device is arranged between the front roller and the tension control device and is used for controlling the position of the filament when the filament is fed; by the device, the left and right reciprocating motion can be realized during the feeding of the filaments; the surface of a rotatable yarn guide wheel of the device is provided with a reciprocating groove or the yarn guide wheel can reciprocate left and right, and a rear roller, a middle roller and a front roller; it is characterized in that the filament on the conveying line passes through a tension control device and a position control device or a movement control device at the same time before being fed into the front roller.
8. A composite spinning device of long and short fibers according to claim 7, characterized in that the tension control device is composed of a cylinder with adjustable rotation speed and a rubber roller, the cylinder is made of stainless steel and has smooth surface, the cylinder and the rubber roller are in close contact with each other to hold the long fibers, meanwhile, the rotation speed of the cylinder is adjustable to drive the rubber roller to move relatively, the rotation speed of the tension control device and the rotation speed ratio of the tension control device to the front roller are changed, and the long fibers are fed into the front roller under preset tension.
9. A composite spinning apparatus as claimed in claim 7, characterised in that the position control device is used to control and adjust the position of the filament during feeding, the position of the filament is fixed, or the position control device is driven by the driving device to move, so as to drive the filament to reciprocate relative to the position control device.
10. A composite spinning apparatus as claimed in claim 7, characterized in that the movement control means is a stationary yarn guide wheel, the wheel face of which is formed with a reciprocating spiral groove in which the filaments are transported while reciprocating.
11. A composite spinning apparatus according to claim 10, wherein the spiral groove is a spiral reciprocating groove having a predetermined width and depth, the movement of the filament is accurately controlled, and the frictional contact force between the filament and the groove causes the spiral groove to rotate circumferentially, so that the filament is reciprocated regularly left and right along the spiral reciprocating groove within a predetermined range, and the length of the spiral groove in the axial direction thereof is a variation range of the position of the filament.
12. A filament and staple fiber composite yarn, characterized in that it is obtained by the composite spinning process according to any one of claims 1 to 6.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550076A (en) * | 2021-08-02 | 2021-10-26 | 王公华 | Preparation process and equipment of special non-woven fabric |
| CN116463765A (en) * | 2023-03-23 | 2023-07-21 | 江苏丹毛纺织股份有限公司 | A wool worsted yarn covered by displacement of filaments and its manufacturing method |
| CN117947549A (en) * | 2024-01-31 | 2024-04-30 | 徐州虹纬智能纺织有限公司 | Chemical filament conveying device, core-spun yarn spinning equipment and process |
| CN118065021A (en) * | 2022-11-22 | 2024-05-24 | 让·米歇尔·利博 | Systems for producing yarn |
| CN119221168A (en) * | 2024-11-15 | 2024-12-31 | 武汉纺织大学 | A kind of non-homogeneous yarn based on friction spinning and its preparation method and application |
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| CN116463765A (en) * | 2023-03-23 | 2023-07-21 | 江苏丹毛纺织股份有限公司 | A wool worsted yarn covered by displacement of filaments and its manufacturing method |
| CN117947549A (en) * | 2024-01-31 | 2024-04-30 | 徐州虹纬智能纺织有限公司 | Chemical filament conveying device, core-spun yarn spinning equipment and process |
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