CN115074878A - Spinning device and spinning process for short fiber self-catching hairiness - Google Patents
Spinning device and spinning process for short fiber self-catching hairiness Download PDFInfo
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- CN115074878A CN115074878A CN202210723973.2A CN202210723973A CN115074878A CN 115074878 A CN115074878 A CN 115074878A CN 202210723973 A CN202210723973 A CN 202210723973A CN 115074878 A CN115074878 A CN 115074878A
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- spinning
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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
- D01H5/70—Constructional features of drafting elements
- D01H5/72—Fibre-condensing guides
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
Abstract
A spinning device for short fiber self-catching filoplume comprises a spinning frame drafting mechanism, a filoplume self-catching device, a yarn guide hook and a yarn tube which are arranged from top to bottom in sequence, wherein the spinning frame drafting mechanism comprises a front roller, the filoplume self-catching device comprises a frame, a group of guide wheels are respectively arranged at two ends of the frame, two positioning devices are arranged between the two groups of guide wheels, a motor driving wheel and a speed measuring wheel are respectively arranged below the two groups of guide wheels, the positioning devices comprise positioning seats, the fixed ends of the positioning seats are connected with the frame, supporting wheels and two positioning wheels are fixedly arranged at the free ends of the positioning seats, annular circular belts are sleeved on the guide wheels, the motor driving wheels and the speed measuring wheels, the upper long edges and the lower long edges of the annular circular belts respectively penetrate through the positioning wheels and the supporting wheels, the invention reduces the height of a spinning triangle area by adjusting the distance between the annular circular belts and the front roller and the contact angle with yarns, the hairiness of the short fiber strands in the spinning triangular space is automatically captured, and the yarn quality is improved.
Description
Technical Field
The invention relates to the technical field of spinning production, in particular to a spinning device for automatically capturing hairiness of short fibers and a spinning process thereof.
Background
The hairiness is formed by that part of fiber is not completely twisted into the main body part of the yarn in the spinning process, and the head end or the tail end is exposed on the surface of the yarn body. The hairiness is an important index for evaluating the quality of finished yarn, and besides the influence on the appearance of the yarn and the reduction of the strength of the yarn, the hairiness of more than 3mm can seriously influence the subsequent process, and the influence on the spun yarn and the fabric thereof is particularly obvious. With the innovation of spinning technology and the improvement of life quality of people, the traditional ring spinning mode can not meet the requirement of hairiness index.
Siro spinning is a spinning method for processing yarns with similar plied yarn structures based on a traditional ring spinning frame. Compared with the traditional ring spinning, the siro spinning yarn has less long hairiness and more uniform yarn levelness. In the siro spinning process, when two strands are output by a front roller and are twisted together at a convergence position, the strands are contacted and mutually wound to promote the inside and outside transfer of fibers so as to reduce hairiness, so that the siro spinning is a common process for short fiber spinning. However, in the spinning process, the tension of two strands in the spinning triangular space is unstable, the shaking range is large, and the hairiness of the final product has a certain distance from the actual requirement. Secondly, because the spinning triangular area is unstable in shape, the twist of the fiber strands is greatly changed and the fiber strands are easy to break, the details of final yarn formation are increased, and the production efficiency is reduced. Therefore, the quality of the sirospun spun yarn still has a space for improvement.
In order to reduce the hairiness of sirospun yarns, the chinese patent CN 111074390B discloses a device for removing hairiness of sirospun yarns, wherein a hairiness removing roller with a guide groove is arranged between a nip area formed by a front leather roller and a front roller, and the hairiness removing roller can freely rotate around a central axis. When the single yarn falls into the guide groove, the guide groove gathers fibers extending out of the surface of the single yarn and enables the fibers to be wrapped on the surface of the single yarn along with the twisting rotation of the single yarn, so that hairiness is reduced. The device can effectively control the fiber strand hairiness in front of the spinning triangle area through mechanical gathering, but the siro spinning yarn hairiness is mostly formed in the spinning triangle area, so that the hairiness problem of a spinning machine is not fundamentally solved, and the hairiness of the final siro spun yarn cannot be eliminated to the greatest extent.
Further, patent CN105463632 discloses a hair-catching composite spinning method, in which filaments are fed into a front jaw from the inner side of a short fiber sliver, and after being output, the filaments are combined with the short fiber sliver and twisted into a composite sliver, and the composite sliver is fed into a yarn guide hook in an inclined manner. The method realizes the capture of the hairiness of the short fiber by the contact of the pre-twisted filament to the short fiber, and further inhibits the generation of flying and long hairiness. However, the method realizes the control of the short fiber by utilizing the wrapping effect of the filament on the short fiber, and is not suitable for spinning the traditional siro spinning double-strand feeding short fiber although the hairiness of the yarn in the spinning triangular space is controlled.
Therefore, a device is needed to realize that when the siro spinning bicomponent is short fiber, the fiber extending out of the surface of the fiber strand in the spinning triangular space is controlled, finally, the yarn hairiness is eliminated to the maximum extent, the yarn forming strength is improved, the broken ends are reduced, and the yarn forming quality is improved.
Disclosure of Invention
The invention mainly aims to provide a spinning device for short fiber self-catching hairiness and a spinning process thereof, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a spinning device for short fiber self-catching filoplume comprises a spinning frame drafting mechanism, a filoplume self-catching device, a yarn guide hook and a yarn tube which are arranged from top to bottom in sequence, the drafting mechanism of the spinning frame comprises a front roller, the hairiness self-capturing device comprises a frame, two ends of the frame are respectively provided with a group of guide wheels, two positioning devices are arranged between the two groups of guide wheels, motor driving wheels and speed measuring wheels are respectively arranged below the two groups of guide wheels, the positioning device comprises a positioning seat, the fixed end of the positioning seat is fixedly connected with the frame, a riding wheel and two positioning wheels are fixedly arranged at the free end of the positioning seat, the riding wheel is positioned between the two positioning wheels, and annular circular belts are sleeved on the guide wheel, the motor driving wheel and the speed measuring wheel, and the upper long edge and the lower long edge of the annular circular belt respectively penetrate through the positioning wheel and the supporting wheel.
Optionally, the annular circular belt is made of a TPU material.
Optionally, the positioning wheel is made of a ceramic material.
Optionally, the riding wheel is made of aluminum alloy materials.
Optionally, the spinning process of the spinning device for capturing the hairiness by the short fibers comprises the following steps:
s1, feeding the two parts of the cotton roving into a drafting mechanism of a spinning frame, outputting the cotton roving by a front roller and converging the cotton roving to obtain two short fiber strands;
s2, twisting and combining two short fiber strands to form a yarn, then jumping over the upper long edge of the circular belt, entering a yarn guide hook from the lower long edge of the circular belt and winding the yarn on a yarn tube to obtain a spun yarn;
and S3, performing vacuum low-temperature yarn steaming and setting treatment on the spun yarn, and then performing spooling.
Optionally, the transmission speed of the annular circular belt is 5.5 times to 13 times of the rotation speed of the front roller.
Optionally, the distance between the annular circular belt and the front roller is between 15mm and 50 mm.
Optionally, the contact angle of the circular belt with the yarn is between 25 ° and 60 °.
Optionally, the winding speed during winding is between 850m/min and 1100 m/min.
The invention provides a spinning device and a spinning process for short fiber self-catching hairiness, which have the following beneficial effects:
thereby realize the adjustment of the distance of cyclic annular circle area and front roller and the contact angle of yarn and cyclic annular circle area through the adjustment to the positioning seat free end, reduce the height of spinning triangle district, realize the stable control to spinning triangle district, and then the increase realizes the short-staple whisker strip from catching in spinning triangle district's fibrous effective control to spinning triangle edge, improves the yarn quality.
Drawings
FIG. 1 is a schematic view of a spinning apparatus according to the present invention;
FIG. 2 is a cross-sectional view of the positioning device of the present invention;
FIG. 3 is a schematic view of the spinning triangle of the present invention;
fig. 4 is a schematic structural diagram of a spinning triangle of a conventional spinning frame.
In the figure:
1. a front roller; 2. a frame; 3. a guide wheel; 4. a motor driving wheel; 5. a speed measuring wheel; 6. positioning seats; 7. a riding wheel; 8. positioning wheels; 9. an annular circular band; 10. a yarn guide hook; 11. a bobbin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail and completely with reference to the accompanying drawings.
In the first embodiment, as shown in fig. 1, a spinning device for short fiber self-catching hairiness comprises a spinning frame drafting mechanism, a hairiness self-catching device, a yarn guide hook 10 and a bobbin 11, which are sequentially arranged from top to bottom, wherein the spinning frame drafting mechanism comprises a front roller 1, the hairiness self-catching device comprises a frame 2, two ends of the frame 2 are respectively provided with a set of guide wheels 3, two positioning devices are arranged between the two sets of guide wheels 3, a motor driving wheel 4 and a speed measuring wheel 5 are respectively arranged below the two sets of guide wheels 3, the positioning devices comprise positioning seats 6, fixed ends of the positioning seats 6 are fixedly connected with the frame 2, free ends of the positioning seats 6 are fixedly provided with a supporting wheel 7 and two positioning wheels 8, the supporting wheel 7 is located between the two positioning wheels 8, and annular circular belts 9 are sleeved on the guide wheels 3, the motor driving wheel 4 and the speed measuring wheel 5, the upper long edge and the lower long edge of the annular circular belt 9 respectively penetrate through the positioning wheel 8 and the supporting wheel 7.
The working principle is as follows: two portions of roving are fed into a drafting mechanism of a spinning machine and are output by a front roller 1 and gathered to obtain two short fiber strands, the two short fiber strands are twisted and combined to become yarn, then the yarn jumps over the upper long edge of an annular circular belt 9 between two positioning devices, enters a yarn guide hook 10 from the lower long edge of the annular circular belt 9 between the two positioning devices and is wound on a yarn bobbin 11 to prepare spun yarn, then the spun yarn is subjected to vacuum low-temperature yarn steaming and shaping treatment and is wound, the annular circular belt 9 is driven by a motor driving wheel 4 during working, the guide wheel 3, the motor driving wheel 4 and a speed measuring wheel 5 are driven by the motor driving wheel 4, the speed measuring wheel 5 can monitor the transmission speed of the annular circular belt 9, the motor driving wheel 4 can adjust the transmission speed of the annular circular belt 9 according to the rotating speed of the front roller 1 so as to adapt to the processing of yarns with different specifications, the free end of a positioning seat 6 can adjust the inclination angle and the height, the annular circular belt 9 penetrates through the space between the positioning wheel 8 and the supporting wheel 7, the distance between the annular circular belt 9 and the front roller 1 and the adjustment of the contact angle between the yarns and the annular circular belt 9 are realized by adjusting the free end of the positioning seat 6, the supporting wheel 7 is fixed on the positioning seat 6 through bolts, and the diameter of the supporting wheel 7 can be changed and adjusted to be matched with the height of the annular circular belt 9.
In the spinning process, the schematic drawing of the spinning triangular zone of the invention is shown in fig. 3, the schematic drawing of the spinning triangular zone of the existing spinning frame is shown in fig. 4, and the comparison of fig. 3 and fig. 4 shows that the height of the spinning triangular zone of the invention is reduced, which means that the invention can realize the effective control of the spinning triangular zone, and further achieve the purpose of self-catching filoplume of short fiber strands, and the specific realization process comprises the following steps of adjusting the distance between the annular circular belt 9 and the front roller 1 and the contact angle between the annular circular belt 9 and the yarn, and can influence the twist of the yarn in the area behind the spinning triangular zone and in front of the annular circular belt 9, and under the condition of satisfying the yarn formation, shortening the distance between the annular circular belt 9 and the front roller 1 or reducing the contact angle between the annular circular belt 9 and the yarn, and can increase the twist transmission efficiency, thereby directly reducing the height of the spinning triangular zone, and realizing the stable control of the spinning triangular zone, and on the other hand, the twist transmission efficiency is increased, so that the internal and external transfer degree of the fiber is increased, and the self-capturing hairiness rate of the fiber strands of the short fiber can be improved.
Preferably, the annular circular belt 9 is made of TPU (thermoplastic polyurethane) materials, so that sufficient friction force is guaranteed when the annular circular belt 9 is in contact with yarns, but the yarns cannot be damaged during operation of the annular circular belt 9, the positioning wheel 8 is made of ceramic materials, the friction force between the positioning wheel 8 and the annular circular belt 9 is reduced, the service life is prolonged, meanwhile, static electricity is prevented, the riding wheel 7 is made of aluminum alloy materials, the friction force between the riding wheel 7 and the annular circular belt 9 is reduced, and the service life is prolonged.
In a second embodiment, as a further alternative to the first embodiment, a spinning process of a spinning device for short fiber self-catching hairiness comprises the following steps:
s1, feeding the two parts of the cotton roving into a drafting mechanism of a spinning frame, outputting the cotton roving by a front roller 1 and converging the cotton roving to obtain two short fiber strands;
s2, twisting and combining two short fiber strands to form a yarn, then jumping over the upper long edge of the circular belt 9, entering the yarn guide hook 10 from the lower long edge of the circular belt 9 and winding the yarn on the yarn bobbin 11 to obtain a spun yarn;
and S3, performing vacuum low-temperature yarn steaming and sizing treatment on the spun yarn, and then spooling, wherein the yarn defects in the unwinding process are reduced through the vacuum low-temperature yarn steaming and sizing.
Preferably, the transmission speed of the circular belt 9 is 5.5 to 13 times of the rotation speed of the front roller 1, the distance between the upper long side of the circular belt 9 and the front roller 1 is between 15mm and 50mm, the contact angle between the circular belt 9 and the yarn is between 25 ° and 60 °, and the winding speed during winding is between 850m/min and 1100 m/min.
In this embodiment, the diameter of the circular belt 9 is 6mm, the center distance between the circular belt 9 and the front roller 1 is 31mm, the contact angle between the yarn and the circular belt 9 is 25 °, the speed ratio of the transmission speed of the circular belt 9 to the rotation speed of the front roller 1 is 8.5, the winding speed is 1000m/min, and the cotton yarn with 10S and 280 tex twist coefficient produced by the spinning device and the spinning process of the invention is tested:
the test apparatus and method: the USTER ME100 type yarn evenness tester tests the details, the slubby, the neps and the yarn levelness of the yarn, the testing speed is 400m/min, the testing time is 1min, the YG172A type hairiness tester tests hairiness, the segment length is set to be 10m, the testing times are set to be 10 times, the testing speed is 30m/min, the YYG063 type full-automatic single yarn strength tester tests the breaking elongation and the breaking strength, the stretching speed is 5m/min, the clamping distance of a sample is 500mm, and the pre-tension is 0.5 cN.
The cotton yarn obtained has the following indexes:
the indexes of the cotton yarns meet the quality requirements of GB/T398-2018 'cotton natural color yarns', the cotton yarns can be processed and used in the subsequent procedures, the 3mm hairiness index of the common sirospun yarn obtained under the same production condition reaches 6.3, the hairiness level of the yarn produced by the spinning device and the spinning process thereof is reduced by 16%, and the resultant yarn quality is improved.
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a spinning device of short-staple self-trapping hair feather, includes from last to the spinning frame drafting mechanism, the hair feather self-trapping apparatus, thread guide hook (10), spool (11) that set gradually down, spinning frame drafting mechanism includes front roller (1), its characterized in that: the hairiness self-capturing device comprises a frame (2), a group of guide wheels (3) are respectively arranged at two ends of the frame (2), two positioning devices are arranged between the two groups of guide wheels (3), a motor driving wheel (4) and a speed measuring wheel (5) are respectively arranged below the two groups of guide wheels (3), the positioning device comprises a positioning seat (6), the fixed end of the positioning seat (6) is fixedly connected with the frame (2), a riding wheel (7) and two positioning wheels (8) are fixedly arranged at the free end of the positioning seat (6), the riding wheel (7) is positioned between the two positioning wheels (8), the guide wheel (3), the motor driving wheel (4) and the speed measuring wheel (5) are sleeved with an annular circular belt (9), the upper long edge and the lower long edge of the annular circular belt (9) respectively penetrate through the positioning wheel (8) and the supporting wheel (7).
2. A spinning device for short fiber self-catching hairiness according to claim 1, characterized in that: the annular circular belt (9) is made of TPU materials.
3. A spinning device for short fiber self-catching hairiness according to claim 1, characterized in that: the positioning wheel (8) is made of ceramic materials.
4. A spinning device for short fiber self-catching hairiness according to claim 1, characterized in that: the riding wheel (7) is made of an aluminum alloy material.
5. A spinning process based on a spinning device for short fiber self-catching hairiness, which is disclosed by any one of claims 1 to 4, is characterized by comprising the following steps:
s1, feeding the two parts of the cotton roving into a drafting mechanism of a spinning frame, outputting the cotton roving by a front roller (1) and converging the cotton roving to obtain two short fiber strands;
s2, twisting and combining two short fiber strands to form a yarn, then jumping over the upper long edge of the circular belt (9), entering a yarn guide hook (10) from the lower long edge of the circular belt (9) and winding the yarn on a yarn bobbin (11) to obtain spun yarn;
and S3, performing vacuum low-temperature yarn steaming and setting treatment on the spun yarn, and then performing spooling.
6. The spinning process of the spinning device for the short fiber self-catching hairiness according to claim 5, characterized in that: the transmission speed of the annular circular belt (9) is 5.5 to 13 times of the rotation speed of the front roller (1).
7. The spinning process of the spinning device for the short fiber self-catching hairiness according to claim 5, characterized in that: the distance between the annular circular belt (9) and the front roller (1) is between 15mm and 50 mm.
8. The spinning process of the spinning device for the short fiber self-catching hairiness according to claim 5, characterized in that: the contact angle of the annular circular belt (9) and the yarn is between 25 degrees and 60 degrees.
9. The spinning process of the spinning device for the short fiber self-catching hairiness according to claim 5, characterized in that: the winding speed during winding is between 850m/min and 1100 m/min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210723973.2A CN115074878A (en) | 2022-06-24 | 2022-06-24 | Spinning device and spinning process for short fiber self-catching hairiness |
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| CN202210723973.2A CN115074878A (en) | 2022-06-24 | 2022-06-24 | Spinning device and spinning process for short fiber self-catching hairiness |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203451698U (en) * | 2013-09-12 | 2014-02-26 | 际华三五四二纺织有限公司 | Thick yarn positioning device in siro spinning |
| CN104746189A (en) * | 2015-03-04 | 2015-07-01 | 武汉纺织大学 | Negative pressure guide capturing type ring spinning method |
| CN106757568A (en) * | 2017-03-22 | 2017-05-31 | 江南大学 | A kind of incorgruous twisting spinning apparatus and Yarn spinning method of synchronization |
| CN106948040A (en) * | 2017-05-18 | 2017-07-14 | 忠华集团有限公司 | A kind of low twist yarn feeding device |
-
2022
- 2022-06-24 CN CN202210723973.2A patent/CN115074878A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203451698U (en) * | 2013-09-12 | 2014-02-26 | 际华三五四二纺织有限公司 | Thick yarn positioning device in siro spinning |
| CN104746189A (en) * | 2015-03-04 | 2015-07-01 | 武汉纺织大学 | Negative pressure guide capturing type ring spinning method |
| CN106757568A (en) * | 2017-03-22 | 2017-05-31 | 江南大学 | A kind of incorgruous twisting spinning apparatus and Yarn spinning method of synchronization |
| CN106948040A (en) * | 2017-05-18 | 2017-07-14 | 忠华集团有限公司 | A kind of low twist yarn feeding device |
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