CN111005111B - A method for preparing recycled polyester core-spun sewing thread by air-jet vortex spinning - Google Patents
A method for preparing recycled polyester core-spun sewing thread by air-jet vortex spinning Download PDFInfo
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- CN111005111B CN111005111B CN201911366265.2A CN201911366265A CN111005111B CN 111005111 B CN111005111 B CN 111005111B CN 201911366265 A CN201911366265 A CN 201911366265A CN 111005111 B CN111005111 B CN 111005111B
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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
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/02—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by a fluid, e.g. air vortex
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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
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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
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/46—Sewing-cottons or the like
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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
A method for preparing regenerated terylene core-spun sewing thread by air-jet vortex spinning comprises the steps of leading a filament to be out of a hollow spindle after sequentially passing through a core filament guide hole, a core filament guide pipe and a thread forming hole, driving the filament to be conveyed downstream, then sequentially passing a fiber bundle through an upper output chute, a static applying chamber and a lower output chute, conveying the fiber bundle into a vortex chamber, enabling the fiber bundle passing through the static applying chamber to have like charges, separating the tail end of the fiber bundle from the fiber bundle under the action of rotary vortex in the vortex chamber to form a plurality of free fibers, enabling the free fibers to uniformly and dispersedly fall on the conical surface of the spindle of the hollow spindle under the action of the rotary vortex and the like charges, enabling the rotary free fibers to enter the thread forming hole along with the filament, and wrapping the rotary free fibers on the filament to form the core-spun sewing thread. The design can not only ensure that the devillicate at the tail end of the fiber bundle is more uniform, but also is not easy to generate segment weak twist yarn.
Description
Technical Field
The invention relates to a manufacturing process of core-spun sewing threads, belongs to the technical field of spinning, and particularly relates to a method for preparing regenerated polyester core-spun sewing threads by air-jet vortex spinning.
Background
With the progress of textile technology, the pursuit of people for the comfort and high-grade of clothes is continuously improved, and a sewing thread which is one of indispensable and important clothes accessories is also developed. In the clothing accessories, the consumption of sewing thread is relatively large, and the quality of the sewing thread has direct influence on the production, the appearance and the reuse performance of the finished product.
The polyester core-spun sewing thread is made by wrapping polyester staple fibers with polyester filament yarns, has the advantages of high strength of the polyester filament yarn sewing thread, suitability for high-speed sewing, natural hairiness and hand feeling of the polyester staple fiber sewing thread, capability of meeting the style of clothing fabrics, capability of being a new high-grade sewing thread product developed in recent years, wide market prospect at home and abroad and high added value products.
The prior art has a fiber production process mainly based on regenerated polyester fibers, and the process can reduce the pollution of waste materials to the environment, can make up for the shortage of raw polyester fiber raw material supply, and is favorable for forming a development mode of circular economy.
Hitherto, sewing threads have been produced by three methods, i.e., ring spinning, siro spinning, and air jet spinning. Among them, air jet vortex spinning is a latest spinning technology, is well paid attention by domestic spinning enterprises, and has brought air jet vortex spinning equipment in succession, and has obtained good economic benefits. However, when the air-jet vortex spinning is adopted to manufacture the regenerated polyester core-spun sewing thread, the regenerated polyester fiber has thinner fiber and longer length, so the following defects exist:
the tail ends of the fiber bundles are not uniformly divided under the action of the rotating vortex, so that the number of parallel core fibers is increased, the number of wrapped fibers is reduced, segmented weak twisted yarns are easy to generate, dyeing color difference is easy to generate, and cloth cover defects are formed.
The information disclosed in this background section is only for enhancement of understanding of the general background of the patent application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to overcome the defects and problems that the yarn splitting at the tail end of a fiber bundle is not uniform enough and the fragment weak twisted yarn is easy to generate in the prior art, and provides a method for preparing a regenerated polyester core-spun sewing thread by air-jet vortex spinning, wherein the yarn splitting at the tail end of the fiber bundle is uniform and the fragment weak twisted yarn is difficult to generate.
In order to achieve the above purpose, the technical solution of the invention is as follows: a method for preparing a regenerated polyester core-spun sewing thread by air-jet vortex spinning comprises the following steps: the filament is led out of the hollow spindle after passing through the core filament guide hole, the core filament guide tube and the thread forming hole in sequence, the core filament guide tube is positioned in the vortex chamber, the filament is driven to be conveyed downstream, then the fiber bundle is conveyed into the vortex chamber after passing through the upper output chute, the static applying chamber and the lower output chute in sequence, the fiber bundle passing through the static applying chamber has charges of the same polarity, after entering the vortex chamber, the head end of the fiber bundle enters the thread forming hole along with the filament, the tail end of the fiber bundle is separated from the fiber bundle under the action of the rotational vortex in the vortex chamber to form a plurality of free fibers, the free fibers are evenly scattered and fell on the conical surface of the spindle of the hollow spindle under the action of the rotational vortex and the charges of the same polarity, meanwhile, the free fibers rotate along with the rotational vortex, the rotating free fibers enter the thread forming hole along with the filament and are wrapped on the filament to form the core-covering sewing thread, the formed core-spun sewing thread penetrates through the thread hole and is output outwards.
The filament is a polyester filament yarn, and the fiber bundle is a polyester staple fiber bundle.
The static applying chamber comprises an arc-shaped metal sheet, a spherical charging cavity and an arc-shaped charging sheet which are sequentially arranged, the left side part of the arc-shaped metal sheet is embedded into the upper left air block, the right side part of the arc-shaped metal sheet is contacted with the left side part of the arc-shaped charging sheet through the spherical charging cavity, the right side part of the arc-shaped charging sheet is embedded into the guiding block, the right side part of the arc-shaped charging sheet is connected with one end of an electric wire, and the other end of the electric wire extends to the outside of the guiding block after penetrating through a meridian pore channel;
the top end of the spherical charging cavity is connected with the bottom end of the upper insulating cylinder, the top end of the upper insulating cylinder extends towards the inlet of the upper output chute, the side wall of the upper insulating cylinder is connected with the inner wall of the upper output chute, the bottom end of the spherical charging cavity is connected with the top end of the lower insulating cylinder, the bottom end of the lower insulating cylinder extends towards the outlet of the lower output chute, the side wall of the lower insulating cylinder is connected with the inner wall of the lower output chute, and the top of the spherical charging cavity is provided with an air suction hole communicated with the external space.
The arc-shaped metal sheet is wrapped in a left insulator except for the right side part of the arc-shaped metal sheet, the left insulator is embedded in an upper left air block, a left inner air exhaust duct is formed in the left insulator, the inner end of the left inner air exhaust duct is communicated with an air exhaust hole, the outer end of the left inner air exhaust duct is communicated with a left outer air exhaust duct, and the left inner air exhaust duct is of a structure which is wide outside and narrow inside.
The arc-shaped charged piece except the left side part is wrapped in a right insulator, the right insulator is embedded in a guide block, a right inner air exhaust duct is formed in the right insulator, the inner end of the right inner air exhaust duct is communicated with an air exhaust hole, the outer end of the right inner air exhaust duct is communicated with a right outer air exhaust duct, and the right inner air exhaust duct is of a structure with a wide outside and a narrow inside.
The right outer air exhaust duct is of a structure with a wide outer part and a narrow inner part.
The middle part of the guide block is provided with a core wire guide hole which penetrates through the guide block, a core wire guide tube is arranged below the guide block, the top end of the core wire guide tube is in opposite communication with the core wire guide hole, and the bottom end of the core wire guide tube extends into the vortex chamber and is in opposite arrangement with the wire forming hole.
The right side part of the arc-shaped metal sheet and the left side part of the arc-shaped charged sheet are on the same circle, and the circle and the spherical charged cavity are concentrically arranged.
The inner parts of the upper insulating cylinder and the lower insulating cylinder are respectively embedded with a hollow sealing plug, and the upper insulating cylinder and the lower insulating cylinder are made of rubber or glass.
And the top of the spherical charging cavity is clamped between the upper output chute and the arc-shaped metal sheet or between the upper output chute and the arc-shaped charged sheet, and the parts of the spherical charging cavity are respectively provided with an air exhaust hole.
Compared with the prior art, the invention has the beneficial effects that:
1. in the method for preparing the regenerated polyester core-spun sewing thread by air-jet vortex spinning, before a fiber bundle enters a vortex chamber, the fiber bundle firstly passes through an electric field in a static applying chamber so as to enable like charges on the fiber bundle to be mutually repelled, so that when the tail end of the fiber bundle forms free fibers and falls down on the spindle conical surface of a hollow spindle, under the combined action of the rotary vortex and the like charge repelling effect, the distribution of the free fibers is more uniformly dispersed, the subsequent wrapping with filaments is facilitated, the sewing thread with better strength and higher breaking elongation is formed, and the generation of fragment weak twisted yarns is greatly reduced. Therefore, the invention can lead the devillicate at the tail end of the fiber bundle to be more uniform, thereby being not easy to generate the segment weak twist yarn.
2. In the method for preparing the regenerated polyester core-spun sewing thread by the air-jet vortex spinning, an electrostatic application chamber comprises a spherical charging cavity, an arc metal sheet and an arc charging sheet which are contacted with two ends of the spherical charging cavity, the arc metal sheet and the arc charging sheet are arranged oppositely, the top end and the bottom end of the spherical charging cavity are respectively connected with an upper insulating cylinder and a lower insulating cylinder, and an air suction hole communicated with an external space is formed in the top of the spherical charging cavity. Therefore, the invention can electrify the fiber bundle before entering the vortex chamber, which is beneficial to obtaining the sewing thread with better wrapping effect.
3. In the method for preparing the regenerated polyester core-spun sewing thread by the air-jet vortex spinning, the right side part of the arc-shaped metal sheet and the left side part of the arc-shaped charged sheet are on the same circle, and the circle and the spherical charged cavity are concentrically arranged. Therefore, the present invention can smoothly apply electric charges to the fiber bundle.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the electrostatic applying chamber in fig. 1.
FIG. 3 is a schematic view showing the wrapping of the fiber bundle and the filament in the present invention.
In the figure: the core thread comprises filaments 1, a fiber bundle 2, free fibers 21, a guide block 3, a core thread guide hole 31, a core thread guide tube 32, a hollow spindle 4, a thread forming hole 41, a spindle conical surface 42, a spindle outer cavity 43, a vortex chamber 5, an upper output chute 6, an upper insulating cylinder 61, a sealing plug 62, an electrostatic application chamber 7, an arc-shaped metal sheet 71, a spherical charging cavity 72, an arc-shaped charging sheet 73, an electric wire 74, a thread hole channel 75, an air suction hole 76, a left insulator 77, a left inner air suction hole 771, a left outer air suction hole channel 772, a right insulator 78, a right inner air suction hole channel 781, a right outer air suction hole channel 782, a lower output chute 8, a lower insulating cylinder 81, a left upper air block 9, a right air block 91, a right inclined air channel 92, a left inclined air channel 93, a left lower air block 94 and a core-spun sewing thread 10.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 3, a method for preparing a regenerated polyester core-spun sewing thread by air-jet vortex spinning comprises the following steps: the filament 1 is led out of the hollow spindle 4 after passing through the core wire guide hole 31, the core wire guide tube 32 and the thread forming hole 41 in sequence, the core wire guide tube 32 is positioned in the vortex chamber 5, then the filament 1 is driven to be conveyed downstream, then the fiber bundle 2 is led into the vortex chamber 5 after passing through the upper output chute 6, the static applying chamber 7 and the lower output chute 8 in sequence, the fiber bundle 2 passing through the static applying chamber 7 is provided with charges of the same polarity, after entering the vortex chamber 5, the head end of the fiber bundle 2 enters the thread forming hole 41 together with the filament 1, the tail end of the fiber bundle 2 is separated from the fiber bundle 2 under the action of the rotating vortex in the vortex chamber 5 to form a plurality of free fibers 21, the free fibers 21 are evenly dispersed and laid on the spindle 42 of the hollow spindle 4 under the action of the rotating vortex and the charges of the same polarity, meanwhile, the free fibers 21 rotate along with the rotating vortex, the rotating free fibers 21 enter the thread forming hole 41 together with the filament 1, and is wrapped around the filament 1 to form the cored sewing thread 10, and the formed cored sewing thread 10 is passed through the thread forming hole 41 and is discharged outside.
The filament 1 is a polyester filament, and the fiber bundle 2 is a polyester staple fiber bundle.
The static electricity applying chamber 7 comprises an arc-shaped metal sheet 71, a spherical electricity adding cavity 72 and an arc-shaped charged sheet 73 which are sequentially arranged, the left side part of the arc-shaped metal sheet 71 is embedded in the upper left air block 9, the right side part of the arc-shaped metal sheet 71 is contacted with the left side part of the arc-shaped charged sheet 73 through the spherical electricity adding cavity 72, the right side part of the arc-shaped charged sheet 73 is embedded in the guiding block 3, the right side part of the arc-shaped charged sheet 73 is connected with one end of an electric wire 74, and the other end of the electric wire 74 extends to the outside of the guiding block 3 after penetrating through a warp pore channel 75;
the top end of the spherical charging cavity 72 is connected with the bottom end of the upper insulating cylinder 61, the top end of the upper insulating cylinder 61 extends towards the inlet of the upper output chute 6, the side wall of the upper insulating cylinder 61 is connected with the inner wall of the upper output chute 6, the bottom end of the spherical charging cavity 72 is connected with the top end of the lower insulating cylinder 81, the bottom end of the lower insulating cylinder 81 extends towards the outlet of the lower output chute 8, the side wall of the lower insulating cylinder 81 is connected with the inner wall of the lower output chute 8, and the top of the spherical charging cavity 72 is provided with an air suction hole 76 communicated with the external space.
The arc-shaped metal sheet 71 except the right side part is wrapped in the left insulator 77, the left insulator 77 is embedded in the left upper air block 9, a left inner air exhaust duct 771 is formed in the left insulator 77, the inner end of the left inner air exhaust duct 771 is communicated with the air exhaust hole 76, the outer end of the left inner air exhaust duct 771 is communicated with the left outer air exhaust duct 772, and the left inner air exhaust duct 771 is of a structure with a wide outer part and a narrow inner part.
The arc-shaped charged sheet 73 except the left side part is wrapped in the right insulator 78, the right insulator 78 is embedded in the guide block 3, a right inner air exhaust duct 781 is formed in the right insulator 78, the inner end of the right inner air exhaust duct 781 is communicated with the air exhaust hole 76, the outer end of the right inner air exhaust duct 781 is communicated with the right outer air exhaust duct 782, and the right inner air exhaust duct 781 is of a structure which is wide outside and narrow inside.
The right outer exhaust duct 782 is a structure with a wide outer part and a narrow inner part.
The middle part of the guide block 3 is provided with a core wire guide hole 31 which penetrates through the guide block, a core wire guide tube 32 is arranged below the guide block 3, the top end of the core wire guide tube 32 is in opposite communication with the core wire guide hole 31, and the bottom end of the core wire guide tube 32 extends into the vortex chamber 5 and is in opposite arrangement with the wire forming hole 41.
The right side part of the arc-shaped metal sheet 71 and the left side part of the arc-shaped charged sheet 73 are on the same circle, and the circle and the spherical charging cavity 72 are arranged concentrically.
A hollow sealing plug 62 is embedded in each of the upper insulating cylinder 61 and the lower insulating cylinder 81 for the fiber bundle 2 to pass through, and the upper insulating cylinder 61 and the lower insulating cylinder 81 are made of rubber or glass.
The top of the spherical charging cavity 72 is clamped between the upper output chute 6 and the arc-shaped metal sheet 71 or between the upper output chute 6 and the arc-shaped charged sheet 73, and the parts are respectively provided with a suction hole 76.
The principle of the invention is illustrated as follows:
the amount of the charged charges on the fiber bundle 2 can be determined by the distance and radian of the arc-shaped metal sheets 71 and the arc-shaped charged sheets 73, the residence time of the fiber bundle 2 in an electric field, or the air extraction efficiency of the air extraction holes 76, so that the fiber bundle 2 is provided with a proper amount of charges, the charges cannot be too large, the fiber bundle 2 is prevented from being too dispersed after the fiber bundle 2 enters the vortex chamber 5 to influence the wrapping effect, the charges cannot be too small, and otherwise, the fiber bundle 2 cannot be separated.
An upper output chute 6, a lower output chute 8 and a spherical charging cavity 72 are clamped between a left upper air block 9 and a guide block 3, a left inclined air passage 93 is clamped between the left upper air block 9 and a left lower air block 94 to spray air flow obliquely to a vortex chamber 5, the right side part of the guide block 3 is connected with a right air block 91, and a right inclined air passage 92 is arranged inside the right air block 91 to spray air flow obliquely to the vortex chamber 5. An outer ingot cavity 43 contacting with the ingot conical surface 42 is arranged outside the hollow ingot 4, and the outer ingot cavity 43 is communicated with the vortex chamber 5.
Example 1:
referring to fig. 1 to 3, a method for preparing a regenerated polyester core-spun sewing thread by air-jet vortex spinning comprises the following steps: firstly, a filament 1 (preferably a polyester filament) sequentially passes through a core yarn guide hole 31, a core yarn guide pipe 32 and a thread forming hole 41 and then is led out of a hollow spindle 4, the core yarn guide pipe 32 is positioned in a vortex chamber 5, then the filament 1 is driven to be conveyed downstream, then a fiber bundle 2 (preferably a polyester staple fiber bundle) sequentially passes through an upper output chute 6, a static applying chamber 7 and a lower output chute 8 and then is conveyed into the vortex chamber 5, the fiber bundle 2 passing through the static applying chamber 7 is charged with the same polarity, after entering the vortex chamber 5, the head end of the fiber bundle 2 enters the thread forming hole 41 together with the filament 1, the tail end of the fiber bundle 2 is separated from the fiber bundle 2 under the action of a rotating vortex in the vortex chamber 5 to form a plurality of free fibers 21, the free fibers 21 are uniformly dispersed and lodged on a spindle conical surface 42 of the hollow spindle 4 under the action of the rotating vortex and the charge with the same polarity, meanwhile, the free fiber 21 rotates along with the rotating vortex, the rotating free fiber 21 enters the thread forming hole 41 along with the filament 1 and is wrapped on the filament 1 to form the core-spun sewing thread 10, and the formed core-spun sewing thread 10 passes through the thread forming hole 41 and is output outwards.
Example 2:
the basic contents are the same as example 1, except that:
the static electricity applying chamber 7 comprises an arc-shaped metal sheet 71, a spherical electricity adding cavity 72 and an arc-shaped charged sheet 73 which are sequentially arranged, the left side part of the arc-shaped metal sheet 71 is embedded in the upper left air block 9, the right side part of the arc-shaped metal sheet 71 is contacted with the left side part of the arc-shaped charged sheet 73 through the spherical electricity adding cavity 72, the right side part of the arc-shaped charged sheet 73 is embedded in the guiding block 3, the right side part of the arc-shaped charged sheet 73 is connected with one end of an electric wire 74, and the other end of the electric wire 74 extends to the outside of the guiding block 3 after penetrating through a warp pore channel 75; the top end of the spherical charging cavity 72 is connected with the bottom end of the upper insulating cylinder 61, the top end of the upper insulating cylinder 61 extends towards the inlet of the upper output chute 6, the side wall of the upper insulating cylinder 61 is connected with the inner wall of the upper output chute 6, the bottom end of the spherical charging cavity 72 is connected with the top end of the lower insulating cylinder 81, the bottom end of the lower insulating cylinder 81 extends towards the outlet of the lower output chute 8, the side wall of the lower insulating cylinder 81 is connected with the inner wall of the lower output chute 8, and the top of the spherical charging cavity 72 is provided with an air suction hole 76 communicated with the external space.
Example 3:
the basic content is the same as that of the embodiment 2, except that:
the arc-shaped metal sheet 71 except the right side part is wrapped in the left insulator 77, the left insulator 77 is embedded in the left upper air block 9, a left inner air exhaust duct 771 is formed in the left insulator 77, the inner end of the left inner air exhaust duct 771 is communicated with the air exhaust hole 76, the outer end of the left inner air exhaust duct 771 is communicated with the left outer air exhaust duct 772, and the left inner air exhaust duct 771 is of a structure with a wide outer part and a narrow inner part. The arc-shaped charged sheet 73 except the left side part is wrapped in the right insulator 78, the right insulator 78 is embedded in the guide block 3, a right inner air exhaust duct 781 is formed in the right insulator 78, the inner end of the right inner air exhaust duct 781 is communicated with the air exhaust hole 76, the outer end of the right inner air exhaust duct 781 is communicated with the right outer air exhaust duct 782, and the right inner air exhaust duct 781 is of a structure which is wide outside and narrow inside. The right outer exhaust duct 782 is a structure with a wide outer part and a narrow inner part.
Example 4:
the basic content is the same as that of the embodiment 2, except that:
the right side part of the arc-shaped metal sheet 71 and the left side part of the arc-shaped charged sheet 73 are on the same circle, and the circle and the spherical charging cavity 72 are arranged concentrically. A sealing plug 62 is embedded in each of the upper insulating cylinder 61 and the lower insulating cylinder 81, and the upper insulating cylinder 61 and the lower insulating cylinder 81 are made of rubber or glass.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, but equivalent modifications or changes made by those skilled in the art according to the present disclosure should be included in the scope of the present invention as set forth in the appended claims.
Claims (9)
1. A method for preparing a regenerated polyester core-spun sewing thread by air-jet vortex spinning is characterized by comprising the following steps:
firstly, a filament (1) sequentially passes through a core wire guide hole (31), a core wire guide pipe (32) and a thread forming hole (41) and then is led out of a hollow spindle (4), the core wire guide pipe (32) is positioned in a vortex chamber (5), then the filament (1) is driven to convey towards the downstream, then a fiber bundle (2) sequentially passes through an upper output chute (6), a static applying chamber (7) and a lower output chute (8) and then is conveyed into the vortex chamber (5), the fiber bundle (2) passing through the static applying chamber (7) is provided with like charges, after entering the vortex chamber (5), the head end of the fiber bundle (2) enters the thread forming hole (41) along with the filament (1), while the tail end of the fiber bundle (2) is separated from the fiber bundle (2) under the action of rotary vortex in the vortex chamber (5) to form a plurality of free fibers (21), and the free fibers (21) are under the action of the rotary vortex and the like charges, uniformly dispersed falls on a spindle conical surface (42) of the hollow spindle (4), meanwhile, the free fiber (21) rotates along with the rotating vortex, the rotating free fiber (21) enters a thread forming hole (41) along with the filament (1) and is wrapped on the filament (1) to form a core-spun sewing thread (10), and the formed core-spun sewing thread (10) passes through the thread forming hole (41) and then is output outwards;
the static electricity applying chamber (7) comprises an arc-shaped metal sheet (71), a spherical electricity applying cavity (72) and an arc-shaped charged sheet (73), wherein the arc-shaped metal sheet (71), the spherical electricity applying cavity (72) and the arc-shaped charged sheet (73) are sequentially arranged, the left side part of the arc-shaped metal sheet (71) is embedded in the upper left air block (9), the right side part of the arc-shaped metal sheet (71) is in contact with the left side part of the arc-shaped charged sheet (73) through the spherical electricity applying cavity (72), the right side part of the arc-shaped charged sheet (73) is embedded in the guide block (3), the right side part of the arc-shaped charged sheet (73) is connected with one end of an electric wire (74), and the other end of the electric wire (74) extends to the outside of the guide block (3) after penetrating through the warp pore channel (75);
the top end of the spherical charging cavity (72) is connected with the bottom end of the upper insulating cylinder (61), the top end of the upper insulating cylinder (61) extends towards the inlet of the upper output chute (6), the side wall of the upper insulating cylinder (61) is connected with the inner wall of the upper output chute (6), the bottom end of the spherical charging cavity (72) is connected with the top end of the lower insulating cylinder (81), the bottom end of the lower insulating cylinder (81) extends towards the outlet of the lower output chute (8), the side wall of the lower insulating cylinder (81) is connected with the inner wall of the lower output chute (8), and the top of the spherical charging cavity (72) is provided with an air suction hole (76) communicated with the external space.
2. The method for preparing the regenerated polyester core-spun sewing thread by air-jet vortex spinning according to claim 1, characterized in that: the filament (1) is a polyester filament, and the fiber bundle (2) is a polyester staple fiber bundle.
3. The method for preparing the regenerated polyester core-spun sewing thread by the air-jet vortex spinning according to claim 1 or 2, characterized in that: the arc-shaped metal sheet (71) is wrapped in the left insulator (77) except the right side part of the arc-shaped metal sheet, the left insulator (77) is embedded in the left upper air block (9), a left inner air exhaust duct (771) is formed in the left insulator (77), the inner end of the left inner air exhaust duct (771) is communicated with the air exhaust hole (76), the outer end of the left inner air exhaust duct (771) is communicated with the left outer air exhaust duct (772), and the left inner air exhaust duct (771) is of a structure with wide outside and narrow inside.
4. The method for preparing the regenerated polyester core-spun sewing thread by the air-jet vortex spinning according to claim 1 or 2, characterized in that: the arc-shaped charged sheet (73) is wrapped in the right insulator (78) except for the left side part, the right insulator (78) is embedded in the guide block (3), a right inner air exhaust duct (781) is formed in the right insulator (78), the inner end of the right inner air exhaust duct (781) is communicated with the air exhaust hole (76), the outer end of the right inner air exhaust duct (781) is communicated with the right outer air exhaust duct (782), and the right inner air exhaust duct (781) is of a structure which is wide outside and narrow inside.
5. The method for preparing the regenerated polyester core-spun sewing thread by air-jet vortex spinning according to claim 4, characterized in that: the right outer air exhaust duct (782) is of a structure with a wide outer part and a narrow inner part.
6. The method for preparing the regenerated polyester core-spun sewing thread by air-jet vortex spinning according to claim 4, characterized in that: the middle part of the guide block (3) is provided with a core wire guide hole (31) which penetrates through the guide block, a core wire guide tube (32) is arranged below the guide block (3), the top end of the core wire guide tube (32) is in opposite communication with the core wire guide hole (31), and the bottom end of the core wire guide tube (32) extends into the vortex chamber (5) and is in opposite arrangement with the wire forming hole (41).
7. The method for preparing the regenerated polyester core-spun sewing thread by the air-jet vortex spinning according to claim 1 or 2, characterized in that: the right side part of the arc-shaped metal sheet (71) and the left side part of the arc-shaped charged sheet (73) are on the same circle, and the circle and the spherical charging cavity (72) are concentrically arranged.
8. The method for preparing the regenerated polyester core-spun sewing thread by the air-jet vortex spinning according to claim 1 or 2, characterized in that: a hollow sealing plug (62) is embedded in each of the upper insulating cylinder (61) and the lower insulating cylinder (81), and the upper insulating cylinder (61) and the lower insulating cylinder (81) are made of rubber or glass.
9. The method for preparing the regenerated polyester core-spun sewing thread by the air-jet vortex spinning according to claim 1 or 2, characterized in that: the top of the spherical charging cavity (72) is clamped between the upper output chute (6) and the arc-shaped metal sheet (71) or between the upper output chute (6) and the arc-shaped charged sheet (73) and is provided with a gas suction hole (76).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911366265.2A CN111005111B (en) | 2019-12-26 | 2019-12-26 | A method for preparing recycled polyester core-spun sewing thread by air-jet vortex spinning |
Applications Claiming Priority (1)
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| CN113122984A (en) * | 2021-03-17 | 2021-07-16 | 南京禾素时代抗菌材料科技有限公司 | Preparation method of antibacterial and antiviral coated yarn containing PHBV material |
| CN113201814B (en) * | 2021-04-06 | 2022-05-06 | 湖北枫树线业有限公司 | Device and process for online preparation of air-jet vortex spinning antibacterial anion yarns |
| CN116288846B (en) * | 2023-03-22 | 2024-05-28 | 宁波三邦超细纤维有限公司 | Filament high-strength polyester sewing thread processing method |
| CN116497494B (en) * | 2023-06-30 | 2023-09-22 | 江苏恒力化纤股份有限公司 | Warm-keeping raised yarn and preparation method and device thereof |
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Denomination of invention: A method for preparing regenerated polyester core sewing thread by jet vortex spinning Granted publication date: 20210817 Pledgee: Bank of China Limited Ezhou branch Pledgor: HUBEI FENGSHU THREAD MANUFACTURING Co.,Ltd. Registration number: Y2024980043347 |
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Denomination of invention: A method for preparing regenerated polyester core sewing thread by jet vortex spinning Granted publication date: 20210817 Pledgee: Bank of China Limited Ezhou branch Pledgor: HUBEI FENGSHU THREAD MANUFACTURING Co.,Ltd. Registration number: Y2025980066905 |
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