CN111334911A - Flax/polyester yarn self-bonding core-spun yarn production equipment and method - Google Patents
Flax/polyester yarn self-bonding core-spun yarn production equipment and method Download PDFInfo
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- CN111334911A CN111334911A CN202010133460.7A CN202010133460A CN111334911A CN 111334911 A CN111334911 A CN 111334911A CN 202010133460 A CN202010133460 A CN 202010133460A CN 111334911 A CN111334911 A CN 111334911A
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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
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
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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
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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
- D01H13/10—Tension devices
- D01H13/104—Regulating tension by devices acting on running yarn and not associated with supply or take-up devices
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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
- 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
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
- D02G3/402—Yarns in which fibres are united by adhesives; Impregnated yarns or threads the adhesive being one component of the yarn, i.e. thermoplastic yarn
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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
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/04—Linen
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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
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention discloses a flax polyester yarn self-bonding covering yarn production device and a method, which comprises flax short fiber roving strips, dope-dyed polyester filaments and low-melting-point polyester filaments, wherein the flax short fiber roving strips are conveyed to a front roller in front through a rear roller and a roving spreading apron; the dope dyed polyester filament yarn is released from the bobbin and goes upwards around a yarn guide tension pulley and passes through a low-melting polyester filament yarn bobbin bracket and a bobbin core of the low-melting polyester filament yarn bobbin; the low-melting point polyester filament yarns are unwound from the bobbin, and the low-melting point polyester filament yarns and the dope-dyed polyester filament yarns are combined and bypass the yarn guide to form low-twist mixed filament yarns; the low-twist combined filament yarn is converged with fiber whiskers formed by the flax short fiber roving strips at the front roller, and forms flax/polyester yarn core-spun yarn under the action of a twisting triangular space, and the flax/polyester yarn core-spun yarn passes through a steel collar ring on a steel collar of a flax spinning frame and is wound on a fine yarn tube. The invention can play a role in improving the yarn strength and reducing the falling of yarn hairiness, not only can improve the dyeing depth of flax blended yarn fabrics, but also is beneficial to improving the color fastness of the fabrics and the good shaping property and shape retention of fabrics.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to flax/polyester yarn self-bonding core-spun yarn production equipment and a flax/polyester yarn self-bonding core-spun yarn production method.
Background
The core spun yarn is also called composite yarn or covering yarn, and is a new type of yarn formed by combining two or more kinds of fibers. The first covering yarn was a spun staple and spun staple covering yarn developed with cotton fiber as the sheath and polyester spun yarn as the core.
The core spun yarn is generally spun by using synthetic fiber filaments with good strength and elasticity as core filaments and wrapping short fibers such as cotton, wool and viscose fibers together for twisting. The core-spun yarn has the excellent performances of both filament core yarn and short fiber covering. The common core-spun yarn is polyester cotton core-spun yarn, which takes polyester filament as core yarn and is coated with cotton fiber. And the spandex core-spun yarn is a yarn which is made by taking spandex filaments as core yarns and wrapping other fibers. The fabric made of the core-spun yarn has good crease resistance and shape retention, and can stretch freely and fit comfortably when being worn.
Spinning process flow
At present, two processes for spinning the core-spun yarn exist, and the example of processing the polyester cotton core-spun yarn is taken as an example.
A carding system:
cotton: blowing, carding, drawing, roving and spinning (core-spun).
A combing system:
cotton: blowing, cotton carding, sliver lapping, lap lapping, combing, lap lapping.
In the actual process, the selection of the core yarn process is determined according to the yarn forming requirement and the number of spun yarns.
However, in the existing covering yarn production process, tension gradient cannot be reasonably controlled due to different tensions borne by raw materials for manufacturing the covering yarn, and positions of the raw materials are not well configured, so that the strength is lower and yarn hairiness falls off seriously in use.
Disclosure of Invention
The invention aims to provide flax/polyester yarn self-bonding core-spun yarn production equipment and method, wherein low-melting-point differential polyester filaments are distributed in a yarn middle layer through reasonable fiber tension gradient control, core layer stock solution coloring polyester filaments of the core-spun yarn are bonded with sheath layer flax short fibers, so that the effects of improving the yarn strength and reducing yarn hairiness shedding are achieved, the dyeing depth of a flax blended yarn fabric can be improved, the color fastness of the fabric can be improved, and the problems in the background art can be solved.
In order to achieve the purpose, the invention provides the following technical scheme:
the flax/polyester yarn self-bonding covering yarn production equipment comprises flax staple fiber roving strips, dope-dyed polyester filaments and low-melting-point polyester filaments, wherein the flax staple fiber roving strips are collected in a flax roving bobbin on a roving bobbin hanger, one end of each flax staple fiber roving strip sequentially bypasses a yarn guide tension wheel and a yarn guide rod, and the flax staple fiber roving strips are conveyed to a front roller in front through a rear roller and a roving stretching leather ring;
the spinning machine comprises a raw liquid coloring polyester filament bobbin, a raw liquid coloring polyester filament bobbin bracket, a low-melting point polyester filament bobbin bracket, a roving bobbin hanger and a spinning frame, wherein the raw liquid coloring polyester filament is wound on the raw liquid coloring polyester filament bobbin bracket, and the raw liquid coloring polyester filament bobbin bracket passes through a bobbin core of the low-melting point polyester filament bobbin bracket and a bobbin core of the low-melting point polyester filament bobbin after being unwound from the bobbin;
the low-melting-point polyester filament yarn and the dope dyed polyester filament yarn in the low-melting-point polyester filament bobbin bypass the yarn guide A and form a low-twist mixed filament yarn in the low-melting-point polyester filament bobbin, the low-twist mixed filament yarn bypasses the yarn guide B and passes through the spring tensioner, the spring tensioner is mounted on the cantilever frame of the flax spinning frame through a spring tensioner support, the low-twist mixed filament yarn downwards passes through a feeding positioning guide wire hook, the feeding positioning guide wire hook is mounted on a feeding positioning guide wire hook support, the low-twist mixed filament yarn and the flax short fiber roving strip form flax/polyester yarn core-spun yarn at a front roller, the flax/polyester yarn core-spun yarn passes through a steel collar ring on a steel collar of the flax spinning frame and is wound on a fine yarn tube, and a spinning frame is arranged at the bottom end of.
Furthermore, the yarn guide rods are four and distributed in an upper layer and a lower layer, the yarn guide rods positioned on the lower layer are positioned in the water tank, and water is contained in the water tank.
Furthermore, a small hole for the polyester filament core-spun yarn to pass through is formed in the center of the circle at the bottom of the tray of the low-melting-point polyester filament bobbin bracket.
Furthermore, a clamping roller is arranged on the spring tensioner, a groove is formed in the clamping roller, and the low-twist mixed fiber is located in the groove.
Further, the clamping roller is connected with the spring tensioner bracket through threads.
Further, the spindles of the spinning machine are driven by spindle transmission belts.
Further, the flax short fiber roving is composed of flax fibers, and the flax fibers are coated outside the low-twist mixed-filament yarn to form the flax/polyester yarn core-spun yarn.
The invention provides a method for producing flax/polyester yarn self-bonding core-spun yarn, which comprises the following steps:
step 1: the carded and degummed flax staple fiber roving sliver is unwound from a flax roving bobbin movably arranged on a roving bobbin hanger, passes through a yarn guide tension wheel and a yarn guide rod, passes through water in a water tank to be further wetted, and is conveyed to a front roller through a rear roller and a roving spreading leather ring;
step 2: the dope dyed polyester filament yarn and the low melting point polyester filament yarn are respectively released from the dope dyed polyester filament yarn bobbin and the low melting point polyester filament yarn bobbin;
and step 3: the dope dyed polyester filament passes through a small hole at the center of a circle at the bottom of a tray of the low-melting point polyester filament bobbin bracket and a bobbin core of the low-melting point polyester filament bobbin, and converges with the low-melting point polyester filament at a yarn guide A to form low-twist mixed filament yarn;
and 4, step 4: the low-twist combined filament yarns are conveyed to a front roller to be converged with a flax short fiber roving strip conveyed by a rear roller and a roving spreading leather collar through a yarn guide B, a spring tensioner and a feeding positioning yarn guide hook in sequence;
and 5: the low-twist combined filament yarn converged with the flax short fiber roving strips is drawn and wound on the core of the filament bobbin under the rotation action of a spindle of a spinning machine driving the core of the filament bobbin to form a filament bobbin together with the flax short fiber roving strips, and a twisting triangular area is formed at the output port of a front roller under the action of a steel collar rotating around a steel collar of the flax spinning machine;
step 6: and after the flax fibers pass through the twisting triangular space, the flax fibers are coated outside the low-twist mixed fiber yarn to form the flax/polyester yarn core-spun yarn.
Compared with the prior art, the invention has the beneficial effects that:
(1) the method comprises the following steps of taking a dope dyed regenerated polyester filament, a low-melting-point differential polyester filament and a flax staple fiber roving as raw materials, and firstly, coaxially unwinding and low-twisting the dope dyed regenerated polyester filament and the low-melting-point differential polyester filament (or carrying out mixed fiber complexing processing in a networking process) to form a mixed filament yarn, wherein the unwinding tension of the low-melting-point differential polyester filament is slightly smaller than that of the dope dyed regenerated polyester filament; and then, a polyester yarn special feeding device is adopted to carry out core-covering spinning on a flax wet spinning frame, so that the three fibers form a special sheath-core covering yarn linear structure with 'inner, middle and outer three-layer distribution' in the same covering yarn single yarn.
(2) In the special skin-core-spun structure, the flax fiber is distributed on the outermost layer of the yarn with the minimum tension, so that the elegant appearance and the comfortable wearing of the yarn are formed; the terylene mixed fiber is arranged in the yarn section to form a skeleton of the core-spun yarn, which is beneficial to improving the evenness of the flax mixed yarn and improving the yarn strength and the heat setting performance of the fabric. The fiber distribution mode of the dope-dyed polyester yarn inside and the flax fiber outside is also helpful to ensure the comfort of the fabric and improve the appearance style and shape retention of the fabric. Through reasonable fiber tension gradient control, the low-melting-point differential polyester filaments are distributed in the yarn middle layer, and are solidified after being thermally melted by a special high-temperature flash evaporation process in the subsequent drying process, so that the core layer polyester filaments and the surface layer flax staple fibers of the core-spun yarn are bonded together, and the effects of improving the yarn strength and reducing the falling of yarn hairiness are achieved. Therefore, it is called "self-bonding core spun yarn".
(3) The core yarn polyester yarn color of the spun self-bonding core-spun yarn can select the polyester colored yarn with the same color phase and the deeper first-level chromaticity according to the final color requirement of the fabric, so that the dyeing depth of the flax blended yarn fabric can be improved, and the color fastness of the fabric can be improved.
Drawings
FIG. 1 is a structural diagram of the flax/polyester yarn self-bonding covering yarn production equipment of the invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1 in accordance with the present invention;
fig. 3 is a cross-sectional view B-B of fig. 2 according to the present invention.
In the figure: 1. flax staple fiber roving; 2. a roving bobbin hanger; 3. a flax roving bobbin; 4. a yarn guide tension wheel; 5. a yarn guide bar; 6. water; 7. a water tank; 8. a back roller 8; 9. roving and unfolding the leather ring; 10. a front roller; 11. coloring the polyester filament yarn by using stock solution; 12. coloring the polyester filament yarn bobbin by using stock solution; 13. a dope dyeing polyester yarn bobbin creel; 14. a guide wire tension pulley; 15. a low-melting point polyester filament bobbin bracket; 16. a low-melting point polyester filament bobbin; 17. low-melting point polyester filament; 18. a bobbin creel fixing nut; 19. a left and right thread guide support; 20. a thread guide A; 21. low twist co-mingled filaments; 22. a thread guide B; 23. a spring tensioner bracket; 24. a spring tensioner; 25. feeding a positioning wire guide hook support; 26. feeding a positioning wire guide hook; 27. flax/polyester yarn core spun yarn; 28. ring of flax spinning frame; 29. a steel collar; 30. a ring bobbin; 31. a spinning frame spindle; 32. flax fibers; 33. flax spinning frame cantilever frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a flax/polyester yarn self-bonding covering yarn production device comprises a flax staple fiber roving strip 1, a dope colored polyester filament 11 and a low melting point polyester filament 17, wherein the flax staple fiber roving strip 1 is collected in a flax roving bobbin 3 on a roving bobbin hanger 2, the flax staple fiber roving strip 1 is led out from the flax roving bobbin 3, one end of the flax staple fiber roving strip 1 sequentially bypasses a yarn guide tension wheel 4 and a yarn guide rod 5, the yarn guide tension wheel 4 is used for adjusting the tension of the flax staple fiber roving strip 1, the yarn guide rods 5 are four, the flax staple fiber roving strip 1 is distributed in an upper layer and a lower layer, the yarn guide rod 5 in the lower layer is positioned in a water tank 7, the yarn guide rod 5 is arranged for changing the trend of the flax staple fiber roving strip 1 so that the flax staple fiber roving strip can pass through the water tank 7, water 6 is contained in the water tank 7 and is used for wetting the flax staple fiber roving sliver strip 1, a back 8 and a roving spreading leather ring 9 of a flax staple fiber roller 1 are conveyed to a front 10, the back roller 8 and the front roller 10 are used for providing forward power for the flax staple fiber roving sliver 1.
The dope dyed polyester filament 11 is received in the dope dyed polyester filament bobbin 12 on the dope dyed polyester filament bobbin bracket 13, the dope dyed polyester filament 11 is released from the bobbin 12, passes through the low melting point polyester filament bobbin bracket 15 and the bobbin core of the low melting point polyester filament bobbin 16 by passing through the yarn tension wheel 14, the yarn tension wheel 14 is used for adjusting the tension of the polyester filament core-spun yarn 11, the low melting point polyester filament bobbin bracket 15, the polyester filament bobbin bracket 13 and the roving bobbin hanger 2 are all arranged on the flax spinning frame cantilever frame 33 by the bobbin frame fixing nut 18, the bobbin frame fixing nut 18 is also provided with a left and a right arched yarn guide bracket 19, one end of the left and the right yarn guide bracket 19 is provided with a yarn guide A (20), the other end of the left and the right yarn guide bracket 19 is provided with a yarn guide B (22), the yarn guide A (20) and the yarn guide B (22) are arranged at two corners of the left and the right yarn guide bracket 19, the orientation of the low twist combined filament yarn 21 is changed.
The low-melting point polyester filament 17 and the dope dyed polyester filament 11 in the low-melting point polyester filament bobbin 16 bypass the yarn guide A (20) and form a low-twist mixed filament 21, the low-twist mixed filament 21 bypasses the yarn guide B (22) and passes through the spring tensioner 24, the spring tensioner 24 is provided with a clamping rod, the clamping rod is provided with a groove, the low-twist mixed filament 21 is positioned in the groove, the clamping rod is connected with the spring tensioner bracket 23 through a thread, the spring tensioner 24 is arranged on a cantilever frame 33 of a flax spinning machine through the spring tensioner bracket 23, the low-twist mixed filament 21 downwards passes through a feeding positioning guide wire hook 26, the feeding positioning guide wire hook 26 is arranged on a feeding positioning guide wire hook bracket 25, the low-twist mixed filament 21 forms a flax/polyester filament core-spun yarn 27 with a flax short fiber coarse yarn strip 1 at a front roller 10, the flax/polyester filament core-spun yarn 27 passes through a steel collar 29 on a steel collar 28 of the flax spinning machine and is wound on a fine yarn bobbin 30, the bottom end of the ring bobbin 30 is provided with a spinning frame spindle 31, and the spinning frame spindle 31 is driven by a spindle driving belt.
The centre of a circle of the bottom of the tray of the low-melting point polyester filament bobbin bracket 15 is provided with a small hole for the polyester filament 11 to pass through, so that the polyester filament 11 can conveniently pass through and enter the low-melting point polyester filament bobbin 16.
In order to better show the production flow of the flax/polyester yarn self-bonding covering yarn production equipment, the embodiment of the invention provides a method for producing flax/polyester yarn self-bonding covering yarn, which comprises the following steps:
the carded and degummed flax staple fiber roving sliver 1 is unwound from a flax roving bobbin 3 movably mounted on a roving bobbin hanger 2, passes through a yarn guide tension wheel 4 and a yarn guide rod 5, passes through water 6 in a water tank 7 to be further wetted, and is conveyed to a front roller 10 through a rear roller 8 and a roving stretching leather collar 9; the dope dyed polyester filament 11 and the low melting point polyester filament 17 are respectively released from the dope dyed polyester filament bobbin 12 and the low melting point polyester filament bobbin 16 which are respectively arranged on the dope dyed polyester filament bobbin creel 13 and the low melting point polyester filament bobbin bracket 15.
Leading is controlled by a thread guide tension pulley 14 with a tension regulator, the dope dyed polyester filament 11 passes through a small hole at the bottom circle center of a tray of a low-melting point polyester filament bobbin bracket 15 and a bobbin core of a low-melting point polyester filament bobbin 16, and is converged with a low-melting point polyester filament core yarn strip 17 at a thread guide A20 arranged at one side of a left thread guide bracket 19 and a right thread guide bracket 19 to form a low-twist mixed filament yarn 21; the low-twist combined filament yarn 21 is sequentially conveyed to the front roller 10 through a yarn guide B22, a spring tensioner 24 and a feeding positioning guide wire hook 26 and is combined with the flax short fiber roving strip 1 conveyed by the rear roller 8 and the roving spreading leather collar 9.
When the flax staple fiber roving sliver 1 passes through a rear roller 8, a front roller 10 and a roving stretching leather collar 9 with different rotating speeds, the drawing effect of drawing length and thinning occurs, and the drawing multiple is determined by the rotating speed ratio of the front roller and the rear roller according to the yarn forming process.
The low-twist combined filament yarn 21 converged with the flax short fiber roving sliver 1 is drawn and wound on a filament bobbin core under the rotation action of a spinning frame spindle 31 driving the filament bobbin core to form a filament bobbin 30 together with the flax short fiber roving sliver 1, and simultaneously, a twisting triangular area is formed at the output port of a back roller 8 under the action of a steel collar 29 rotating around a steel collar 28 of a flax spinning frame, as shown in M of figure 2; because the flax fiber 32 in the flax staple fiber roving strip 1 is fluffy, the conveying tension of the back roller 8 is relatively small, and the tension of the low-twist combined yarn 21 is relatively large, after the flax fiber 32 is wrapped outside the low-twist combined yarn 21 through the twisting triangular space to form the flax/polyester yarn core-spun yarn 27, and the interface form is shown in fig. 3.
The spinning frame spindle 31 rotates at high speed and is driven by the friction of the spinning frame spindle transmission belt. The adjustable spring tensioner 24 is fixed on the tail end beam of the flax spinning frame cantilever frame 33 through the threaded end of the shaft core of the spring tensioner 24. After the ring bobbin 30 is fully wound, the yarn is intensively sent to a hot air dryer for drying and processing, and finally the yarn is wound into a finished bobbin of the flax/polyester yarn core-spun yarn 27. In the drying process of the flax/polyester filament core-spun yarn 27, the low-melting-point polyester filament core sliver 17 in the flax/polyester filament core-spun yarn 27 is thermally melted and then solidified by using a special high-temperature flash evaporation process, so that the core layer dope-dyed polyester filaments of the flax/polyester filament core-spun yarn 27 are bonded with the sheath layer flax staple fibers, the effects of improving the strength of the flax yarn and reducing the falling of yarn hairiness are achieved, and the self-bonding core-spun yarn is formed.
On the basis of the traditional flax wet spinning frame, a frame is reformed, a cantilever bracket, a tensioner and other parts are additionally arranged on a beam at the tail end of a cantilever beam, and a polyester filament yarn 11, a low-melting polyester filament yarn 17 and a flax staple fiber roving sliver 1 are taken as raw materials, but the flax wet spinning frame is not limited to the raw materials and also comprises common white polyester yarn or nylon yarn and other conventional filament yarn raw materials. The flax yarn has the functions of improving the strength of the flax yarn and reducing the falling of yarn hairiness.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (8)
1. A flax polyester yarn self-bonding covering yarn production device comprises a flax short fiber roving strip (1), a dope dyed polyester filament (11) and a low melting point polyester filament (17), and is characterized in that the flax short fiber roving strip (1) is collected in a flax roving bobbin (3) on a roving bobbin hanger (2), one end of the flax short fiber roving strip (1) sequentially bypasses a yarn guide tension wheel (4), a yarn guide rod (5) and water 6 in a water tank 7, and the flax short fiber roving strip (1) is conveyed to a front roller (10) in front through a rear roller (8) and a roving stretching leather collar (9);
the dope dyed polyester filament (11) is received in a polyester filament bobbin (12) on a dope dyed polyester filament bobbin creel (13), the dope dyed polyester filament (11) is unwound from the dope dyed polyester filament bobbin (12), and passes through a low melting point polyester filament bobbin bracket (15) and a bobbin core of a low melting point polyester filament bobbin (16) by upward bypassing a filament tension wheel (14), the low-melting point polyester filament bobbin bracket (15), the polyester filament bobbin cradle (13) and the roving bobbin hanger (2) are all arranged on a cantilever rack (33) of a flax spinning frame through bobbin cradle fixing nuts (18), the bobbin creel fixing nut (18) is also provided with an arched left and right thread guide bracket (19), one end of the left and right wire guide supports (19) is provided with a wire guide A (20), and the other end of the left and right wire guide supports (19) is provided with a wire guide B (22);
the low-melting-point polyester filament yarn (17) and the dope-dyed polyester filament yarn (11) in the low-melting-point polyester filament yarn bobbin (16) bypass the yarn guide A (20) and form a low-twist mixed filament yarn (21) at the same time, the low-twist mixed filament yarn (21) bypasses the yarn guide B (22) and passes through the spring tensioner (24), the spring tensioner (24) is installed on the flax spinning frame cantilever rack (33) through the spring tensioner bracket (23), the low-twist mixed filament yarn (21) downwards passes through the feeding positioning yarn guide hook (26), the feeding positioning yarn guide hook (26) is installed on the feeding positioning yarn guide hook bracket (25), the low-twist mixed filament yarn (21) is wound and converged with the flax short fiber roving strip (1) at the front roller (10) and forms a flax/polyester filament core-spun yarn (27) under the action of a triangular zone, and the flax/core-spun yarn (27) passes through a steel collar (29) on a spinning frame (28) of the flax spinning frame and is spun yarn The bobbin (30) is arranged on a spindle (31) of a spinning machine.
2. The flax/polyester yarn self-bonding covering yarn production equipment as claimed in claim 1, wherein the yarn guide rods (5) are four and distributed in an upper layer and a lower layer, the yarn guide rods (5) positioned in the lower layer are positioned in the water tank (7), and the water tank (7) is filled with water (6).
3. The flax polyester yarn self-bonding covering yarn production equipment as claimed in claim 1, wherein a small hole for the polyester filament (11) to pass through is formed in the center of the bottom of the tray of the low-melting-point polyester filament bobbin bracket (15).
4. The flax/polyester yarn self-bonding covering yarn production equipment as claimed in claim 1, wherein the spring tensioner (24) is provided with a clamping roller, the clamping roller is provided with a groove, and the low-twist mixed filament yarn (21) is positioned in the groove.
5. The flax/polyester yarn self-bonding core-spun yarn production equipment according to claim 4, wherein the clamping roller is in threaded connection with the spring tensioner bracket (23).
6. The flax/polyester yarn self-bonding core-spun yarn production device as claimed in claim 1, wherein the spinning frame spindle (31) is driven by a spindle driving belt.
7. The flax/polyester yarn self-bonding covering yarn production equipment according to the claim 1, characterized in that the flax short fiber roving strip (1) is provided with flax fibers (32), and the flax fibers (32) are coated outside the low-twist combined filament yarn (21) to form the flax/polyester yarn covering yarn (27).
8. A method for producing the flax/polyester yarn self-bonding core-spun yarn according to claim 1, which comprises the following steps:
step 1: the carded and degummed flax short fiber roving sliver (1) is unwound from a flax roving bobbin (3) movably arranged on a roving bobbin hanger (2), passes through a yarn guide tension wheel (4) and a yarn guide rod (5), passes through water (6) in a water tank (7) to be further wetted, and is conveyed to a front roller (10) through a rear roller (8) and a roving spreading leather ring (9);
step 2: the dope dyed polyester filament yarn (11) and the low melting point polyester filament yarn (17) are respectively released from the polyester filament yarn bobbin (12) and the low melting point polyester filament yarn bobbin (16);
and step 3: the dope dyed polyester filament (11) passes through a small hole at the bottom circle center of a tray of a low-melting point polyester filament bobbin bracket (15) and a bobbin core of a low-melting point polyester filament bobbin (16), and converges with a low-melting point polyester filament core yarn strip (17) at a yarn guide A (20) to form a low-twist mixed yarn (21);
and 4, step 4: the low-twist combined filament yarn (21) is sequentially conveyed to a front roller (10) through a yarn guide B (22), a spring tensioner (24) and a feeding positioning yarn guide hook (26) and is converged with a flax short fiber roving strip (1) conveyed by a rear roller (8) and a roving spreading apron (9);
and 5: the low-twist combined filament yarn (21) converged with the flax short fiber roving sliver (1) is drawn and wound on a thin yarn bobbin core under the rotation action of a spinning frame spindle (31) driving the thin yarn bobbin core to form a spun yarn bobbin (30) together with the flax short fiber roving sliver (1), and a twisting triangular area is formed at the output port of a front roller (10) under the action of a steel collar (29) rotating around a steel collar (28) of a flax spinning frame;
step 6: after the twisting triangular space, the flax fiber (32) is coated outside the low-twist mixed filament yarn (21) to form the flax/polyester yarn core-spun yarn (27).
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| CN114990751A (en) * | 2022-06-17 | 2022-09-02 | 江苏联发纺织股份有限公司 | Polyester hot-melt filament core-spun yarn and preparation method and application thereof |
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Application publication date: 20200626 |