CN116288846A - Filament high-strength polyester sewing thread processing method - Google Patents
Filament high-strength polyester sewing thread processing method Download PDFInfo
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- CN116288846A CN116288846A CN202310280346.0A CN202310280346A CN116288846A CN 116288846 A CN116288846 A CN 116288846A CN 202310280346 A CN202310280346 A CN 202310280346A CN 116288846 A CN116288846 A CN 116288846A
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- 238000009958 sewing Methods 0.000 title claims abstract description 142
- 229920000728 polyester Polymers 0.000 title claims abstract description 31
- 238000003672 processing method Methods 0.000 title claims abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract description 71
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000009471 action Effects 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 206010044048 Tooth missing Diseases 0.000 claims description 5
- 238000005253 cladding Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 238000007382 vortex spinning Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 229920004933 Terylene® Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 206010020112 Hirsutism Diseases 0.000 description 1
- 241000168254 Siro Species 0.000 description 1
- 238000010042 air jet spinning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
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- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007378 ring spinning Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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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
- D02G3/362—Cored or coated yarns or threads using hollow spindles
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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
-
- 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
- D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
-
- 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]
-
- 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
- D10B2401/00—Physical properties
- D10B2401/02—Moisture-responsive characteristics
- D10B2401/021—Moisture-responsive characteristics hydrophobic
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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
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/063—Load-responsive characteristics high strength
-
- 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
- D10B2401/00—Physical properties
- D10B2401/22—Physical properties protective against sunlight or UV radiation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention relates to the technical field of high-strength sewing thread preparation, in particular to a filament high-strength polyester sewing thread processing method, which comprises the following steps: the method comprises the steps of threading filaments, threading fiber bundles, doubling and intermittent twisting, wherein the intermittent twisting step comprises the steps of wrapping twisting, releasing and circulating, the wrapping sewing thread formed after the free fibers and the filaments are wound is subjected to circumferential twisting loading, and stress is released after loading, so that the steps are repeated, the twisting loading and the stress releasing are continuously carried out in the production process, the strength of the formed wrapping sewing thread is continuously improved, the combination between the free fibers and the filaments is tighter, and the strength of the wrapping sewing thread is effectively improved.
Description
Technical Field
The invention relates to the technical field of high-strength sewing thread preparation, in particular to a processing method of filament high-strength polyester sewing threads.
Background
The sewing thread is the thread required by the knitted clothing product, and can be classified into three categories of natural fiber, synthetic fiber sewing thread and mixed sewing thread according to raw materials. With the development of the terylene industry, more and more pure terylene fibers are used as raw materials for sewing threads. The polyester fiber is a synthetic fiber with excellent quality, the strength of the prepared suture is high, the suture is inferior to a nylon thread in various sutures, the suture is second, and the strength is not reduced in a wet state. The shrinkage rate is small, and the shrinkage is less than 1% after proper shaping, so that the sewn stitch can be kept flat and beautiful all the time and has no shrinkage. The wear resistance is inferior to nylon. Low moisture regain, and good high temperature resistance, low temperature resistance, light resistance and water resistance. Therefore, the polyester yarn is a very wide variety, and replaces cotton sewing yarn in many occasions. The polyester yarn has wide application, can be used for sewing cotton fabrics, chemical fiber fabrics and clothing of blended fabrics, and can also be used for sewing knitted garments. The special polyester thread is also an excellent thread in the shoe-cap leather industry.
The polyester core-spun sewing thread is made of polyester filament yarn and polyester staple fiber, has high strength, is suitable for high-speed sewing, has natural hairiness and handfeel of the polyester staple fiber sewing thread, can meet the style of clothing fabric, is a new product of high-grade sewing thread developed in recent years, has wide market prospect at home and abroad, and belongs to high-added value products.
In the prior art, the fiber production process mainly comprises the regenerated polyester fibers, so that the pollution of waste materials to the environment can be reduced, the defect of raw material supply of the original polyester fibers can be overcome, and the development mode of circular economy can be formed.
The production methods of the sewing thread include ring spinning, siro spinning and air jet spinning. The jet vortex spinning is the latest spinning technology, is concerned by domestic spinning enterprises, introduces jet vortex spinning equipment successively, and achieves good economic benefit. However, when the regenerated polyester core-spun sewing thread is spun by using jet vortex, the regenerated polyester fiber has the following disadvantages due to thinner fiber and longer length:
the tail ends of the fiber bundles are not uniformly separated from each other under the action of the rotating vortex, so that parallel core fibers are increased, wrapped fibers are reduced, and the segmented weak twisted yarns are easy to generate, so that the strength is insufficient.
In the Chinese patent with the patent application number of CN201911366265.2, a method for preparing regenerated polyester core-spun sewing thread by jet vortex spinning is specifically disclosed, filaments are sequentially penetrated through a core filament guide hole, a core filament guide tube and a thread forming hole and then led out of a hollow spindle, the filaments are driven to be conveyed downstream, then fiber bundles sequentially penetrate through an upper output chute, an electrostatic application chamber and a lower output chute and then are conveyed into a vortex chamber, the fiber bundles which pass through the electrostatic application chamber have like charges, after entering the vortex chamber, the tail ends of the fiber bundles are separated from the fiber bundles under the action of rotating vortex in the vortex chamber to form a plurality of free fibers, the free fibers are uniformly dispersed and lodged on the conical surface of the hollow spindle under the action of rotating vortex and like charges, and the rotating free fibers enter the thread forming hole together with the filaments and are wrapped on the filaments to form the core-spun sewing thread.
Although the above patents enhance the bonding between free fibers and filaments by the action of rotating vortices and like charges, the strength of the formed core-spun sewing thread remains to be improved.
Disclosure of Invention
According to the technical scheme of the comparison document in the background art, the method for processing the filament high-strength polyester sewing thread is characterized in that the core-spun sewing thread formed by winding the free fiber and the filament is subjected to circumferential torsion loading, and stress is released after loading, so that the method is repeated, and the torsion loading and the stress releasing are continuously carried out in the production process, so that the strength of the formed core-spun sewing thread is continuously improved, the combination between the free fiber and the filament is tighter, and the strength of the core-spun sewing thread is effectively improved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a processing method of filament high-strength polyester sewing thread comprises the following steps:
step a, threading filaments, namely threading the filaments sequentially through a core wire guide hole, a core wire guide tube and a wire forming hole and then guiding the filaments out of a hollow ingot, wherein the core wire guide tube is positioned in a vortex chamber, and then driving the filaments to be conveyed downstream;
b, threading the fiber bundles, and conveying the fiber bundles into a vortex chamber after sequentially threading an upper output chute, an electrostatic applying chamber and a lower output chute, wherein the fiber bundles passing through the electrostatic applying chamber have the same polarity;
c, doubling, namely enabling the head end of the fiber bundle to enter the thread forming hole along with the filament after entering the vortex chamber, separating the tail end of the fiber bundle from the fiber bundle under the action of rotating vortex in the vortex chamber to form a plurality of free fibers, enabling the free fibers to uniformly disperse and fall on the spindle conical surface of the hollow spindle under the action of rotating vortex and like charges, enabling the free fibers to rotate along with the rotating vortex, enabling the rotating free fibers to enter the thread forming hole along with the filament, and wrapping the filaments to form a core-spun sewing thread;
step d, intermittently twisting, wherein the core-spun sewing thread formed in the step c is downwards conveyed to a twisting mechanism positioned below the hollow ingot, passes through a twisting channel on the twisting mechanism, and is coated by the twisting channel, and circumferential rotation twisting is applied to the core-spun sewing thread, and the method specifically comprises the following steps of;
step one, cladding and twisting, wherein a plurality of groups of clamping plates arranged around the core-spun sewing thread are folded to form a twisting channel, and the twisting channel is wrapped by the core-spun sewing thread to rotate;
step two, releasing, wherein after the torsion channel covers the rotation angle alpha of the core-spun sewing thread, the clamping plates are dispersed, and the torsion channel releases the covering of the core-spun sewing thread;
and thirdly, circularly, namely circularly repeating the first step and the second step until the stress of the core-spun sewing thread is eliminated, and repeatedly cladding, twisting and releasing the core-spun sewing thread again.
In the step d, the rotating angle alpha of the twisted channel coating the core-spun sewing thread is 210-300 degrees, and the time for the twisted channel to release the coating of the core-spun sewing thread is 360-alpha degrees.
In a modification, in the step d, the twisting channel is consistent with the rotation angular velocity of the hollow spindle, and the free fiber at the inlet of the thread forming hole on the hollow spindle is twisted with the filament.
In a modification, in the step d, a spiral protrusion is arranged in the torsion channel, and the spiral protrusion performs spiral extrusion on the core-spun sewing thread.
In the step d, raised salient points are arranged in the torsion channel, and the salient points extrude the core-spun sewing thread.
In the step d, the twisted channel is arranged in a closing-up manner along the conveying direction of the core-spun sewing thread, and the core-spun sewing thread is extruded in a circumferential direction.
In the step d, the clamping plates are arranged in an elastic telescopic mode, and elastic extrusion force is applied to the core-spun sewing thread when the clamping plates are folded to form the torsion channel.
As an improvement, the clamping plate is connected with the guide rod, the upper end and the lower end of the guide rod are provided with rotary guide blocks, the rotary guide blocks are provided with arc-shaped waist grooves, the end parts of the guide rod are inserted into the corresponding waist grooves, and the rotary guide blocks rotate to drive the clamping plate to fold or disperse through the guide rod;
the rotary guide block is rotatably arranged, a gear ring is sleeved on the outer side of the rotary guide block, the gear ring is matched with a tooth-missing gear, and the tooth-missing gear is driven by a motor to rotate.
As an improvement, a gear ring is sleeved outside the hollow spindle, and the motor is matched with the gear ring through a driving gear to drive the hollow spindle to synchronously rotate with the torsion channel.
As an improvement, auxiliary positioning rods are respectively arranged at two ends of the guide rod, the auxiliary positioning rods are matched with auxiliary waist grooves formed in the rotary guide blocks in a penetrating mode, the auxiliary positioning rods are arranged in parallel with the guide rod, and the auxiliary waist grooves are arranged in parallel with the waist grooves.
The invention has the beneficial effects that:
(1) According to the invention, the core-spun sewing thread formed by winding the free fiber and the filament is subjected to circumferential torsion loading, and the stress is released after loading, so that the torsion loading and the stress releasing are repeated continuously in the production process, so that the strength of the formed core-spun sewing thread is continuously improved, the combination between the free fiber and the filament is tighter, the strength of the core-spun sewing thread is effectively improved, and the core-spun sewing thread can meet more strength requirements.
(2) According to the invention, the spiral bulges or the convex points are arranged on the inner side wall of the torsion channel, so that the coating force of the torsion channel on the core-spun sewing thread is improved, and the torsion force of the torsion channel when the core-spun sewing thread is twisted is synchronously improved.
(3) According to the invention, the twisting channel is arranged to be closed along the conveying direction of the core-spun sewing thread, so that the core-spun sewing thread is twisted, and the free fiber and the filament are combined more tightly by virtue of the shrinkage of the twisting channel, and the strength of the core-spun sewing thread is further improved.
(4) According to the invention, the rotation angular velocity of the hollow spindle is set to be consistent with the angular velocity of the torsion channel, so that when the torsion channel twists the wrapped core-spun sewing thread, the free fiber positioned at the feed inlet of the thread forming hole of the hollow spindle can obtain stronger torsion combining force and stronger combining strength of the free fiber and the filament.
In conclusion, the core-spun sewing thread prepared by the invention has the advantages of high temperature resistance, low temperature resistance, light resistance, water resistance, ultrahigh strength and the like, and is particularly suitable for the technical field of preparation of filament high-strength polyester sewing threads.
Drawings
FIG. 1 is a schematic flow chart of the processing method of the invention;
FIG. 2 is a schematic elevational view of the hollow ingot of the present invention;
FIG. 3 is a schematic cross-sectional view of a hollow ingot according to the present invention;
FIG. 4 is a schematic perspective view of a torsion mechanism according to the present invention;
FIG. 5 is a schematic view of a splint according to the present invention;
FIG. 6 is a schematic cross-sectional view of a splint according to the present invention;
FIG. 7 is a schematic perspective view of a rotary guide block according to the present invention;
FIG. 8 is a schematic view of the folded state of the clamping plate of the present invention;
FIG. 9 is a schematic view showing the state of dispersion of the splint according to the present invention;
FIG. 10 is a schematic view of a bump perspective structure of the present invention;
FIG. 11 is a schematic view of a projection of the present invention;
FIG. 12 is a schematic cross-sectional view of a twist tunnel according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1:
as shown in fig. 1 to 9, a processing method of filament high-strength polyester sewing thread comprises the following steps:
step a, threading filaments, namely threading the filaments 10 sequentially through a core wire guide hole, a core wire guide tube and a wire forming hole 11 and then leading the filaments out of a hollow ingot 1, wherein the core wire guide tube is positioned in a vortex chamber, and then driving the filaments 10 to be conveyed downstream;
step b, threading the fiber bundles, namely threading the fiber bundles 20 into an eddy current chamber after passing through an upper output chute, an electrostatic applying chamber and a lower output chute in sequence, wherein the fiber bundles 20 passing through the electrostatic applying chamber are provided with the same electric charge;
step c, doubling, after entering a vortex chamber, the head end of the fiber bundle 20 enters the thread forming hole 11 along with the filament 10, while the tail end of the fiber bundle 20 is separated from the fiber bundle 20 under the action of a rotating vortex in the vortex chamber to form a plurality of free fibers 200, the free fibers 200 uniformly disperse and lodge on the spindle conical surface 12 of the hollow spindle 1 under the action of the rotating vortex and like charges, and synchronously, the free fibers 200 rotate along with the rotating vortex, and the rotating free fibers 200 enter the thread forming hole 11 along with the filament 10 and are wrapped on the filament 10 to form a core-spun sewing thread 100;
step d, intermittently twisting, wherein the core-spun sewing thread 100 formed in the step c is conveyed downwards to a twisting mechanism 3 positioned below the hollow ingot 1, passes through a twisting channel 31 on the twisting mechanism 3, and is wrapped by the twisting channel 31, so that the core-spun sewing thread 100 is twisted in a Shi Jiahuan direction, and the method specifically comprises the following steps of;
step one, wrapping and twisting, wherein a plurality of groups of clamping plates 311 arranged around the core-spun sewing thread 100 are folded to form a twisting channel 31, and the twisting channel 31 wraps the core-spun sewing thread 100 for rotation;
step two, releasing, wherein after the torsion channel 31 covers the rotation angle alpha of the core-spun sewing thread 100, the clamping plates 311 are dispersed, and the torsion channel 31 releases the cover of the core-spun sewing thread 100;
and thirdly, circularly, namely circularly repeating the first step and the second step until the stress of the core-spun sewing thread 100 is eliminated, and repeatedly cladding, twisting and releasing the core-spun sewing thread 100 again.
In the step d, the torsion channel 31 wraps the core-spun sewing thread 100 by an angle α of 210-300 °, the time for the torsion channel 31 to release the wrapping of the core-spun sewing thread 100 is the time for the torsion channel 31 to twist by an angle of 360 ° - α, and the time for releasing the wrapping of the core-spun sewing thread 100 is used to enable the core-spun sewing thread 100 to eliminate part of the torsion stress.
It should be noted that, on the basis of the background art reference, the torsion channel 31 for coating the core-spun sewing thread 100 is arranged below the hollow spindle 1, the core-spun sewing thread 100 is torsion loaded by utilizing the torsion channel 31, so that the core-spun sewing thread 100 is torsion, the free fiber 200 wound outside the filament 10 can be better combined with the filament 100, and the core-spun sewing thread 100 is contracted due to the torsion of the core-spun sewing thread 100, the strength of the core-spun sewing thread 100 is improved, and an intermittent torsion mode is adopted when the core-spun sewing thread 100 is torsion, and after the core-spun sewing thread 100 is torsion by an angle alpha, the torsion channel 31 releases a part of torsion stress to the core-spun sewing thread 100, so that the core-spun sewing thread 100 is torsion reinforced in the next step, the core-spun sewing thread 100 cannot have local stress concentration, and the internal structure cannot be damaged due to the stress concentration of the core-spun sewing thread 100 in the subsequent processing process.
Specifically, the clamping plate 311 is connected with the guide rod 312, the upper end and the lower end of the guide rod 312 are provided with rotary guide blocks 313, the rotary guide blocks 313 are provided with arc-shaped waist grooves 314, the end of the guide rod 312 is inserted into the corresponding waist grooves 314, the rotary guide blocks 313 rotate, and the clamping plate 311 is driven to fold or disperse by the guide rod 312;
the rotary guide block 313 is rotatably arranged, a gear ring 310 is sleeved on the outer side of the rotary guide block 313, the gear ring 310 is matched with a gear with a missing tooth 315, and the gear with missing tooth 315 is driven by a motor 316 to rotate.
The rotary guide block 313 is mounted on the mounting plate of the hollow spindle 1 through a bearing, the rotary guide block 313 is driven by a motor 316 to rotate through a gear ring 310 matched with a gear lack gear 315, when the gear lack part on the gear lack gear 315 is matched with the gear ring 310, the rotary guide block 313 does not rotate, so that the clamping plate 311 loses pushing force and contacts the torsion channel 31 formed, a powerful spring 300 which enables the guide rod 312 to be separated from a limit position is arranged in a waist groove 314, once the rotary guide block 313 loses the driving of the motor 316, the powerful spring 300 counteracts part of the inertia of the rotary guide block 313, so that the clamping plate 311 is quickly separated from the limit position forming the torsion channel 31, in addition, in order to overcome the inertia of the rotary guide block 313, a stop structure can be arranged outside the rotary guide block 313, namely, by means of a friction plate, the rotary guide block 313 is quickly stopped, and the stop structure is a friction plate driven by a telescopic push rod.
When the teeth on the tooth-missing gear 315 are matched with the gear ring 310, the rotary guide block 313 is driven to rotate rapidly, the stop structure does not work at the moment, the rotary guide block 313 rapidly compresses the strong spring 300, the guide rod 312 rapidly reaches the end of the waist groove 314, namely, the position where the clamping plate 311 is folded to form the torsion channel 31, the torsion channel 31 is formed, and the core-spun sewing thread 100 is driven to twist.
In order to ensure that the clamping plate 311 does not rotate, two ends of the guide rod 312 are respectively provided with an auxiliary positioning rod 318, the auxiliary positioning rod 318 is in puncture fit with an auxiliary waist groove 319 formed in the rotary guide block 313, the auxiliary positioning rod 318 is arranged in parallel with the guide rod 312, the auxiliary waist groove 319 is arranged in parallel with the waist groove 314, and the clamping plate 311 can only move along the waist groove 314 and cannot rotate due to two-point positioning of the guide rod 312 and the auxiliary positioning rod 318.
Example 2:
description of the invention with reference to example 1 example 2 differs from example 1 in that:
as shown in fig. 4, in the step d, the twisting channel 31 is aligned with the rotational angular velocity of the hollow ingot 1, and the free fiber 200 at the entrance of the thread forming hole 11 on the hollow ingot 1 is twisted with the filament 10.
Further, a gear ring 310 is sleeved on the outer portion of the hollow spindle 1, and the motor 316 is matched with the gear ring 310 through a driving gear 317 to drive the hollow spindle 1 and the torsion channel 31 to rotate synchronously.
It should be noted that, since the twisting channel 31 is wrapped and clamped with the core-spun sewing thread 100, the core-spun sewing thread 100 of the wrapping section of the twisting channel 31 is not twisted during the rotation of the twisting channel 31, the twisted portions are the core-spun sewing thread 100 above and below the twisting channel 31, respectively, and the hollow ingot 1 is located above the twisting channel 31, and the thread forming hole 11 on the hollow ingot 1 is further used for promoting the free fiber 200 to be combined with the filament 10 to form the core-spun sewing thread 100, so that the core-spun sewing thread 100 in the thread forming hole 11 is twisted, so that the free fiber 200 at the entrance of the thread forming hole 11 is combined with the filament 10 more tightly.
The rotation angular velocity of the torsion channel 31 is consistent with that of the hollow ingot 1, so that the torsion forces of the core-spun sewing thread 100 on the hollow ingot 1 and the core-spun sewing thread 100 on the torsion channel 31 are similar, but the difference is that the core-spun sewing thread 100 is not clamped in the thread forming hole 11, so that certain friction dislocation occurs between the core-spun sewing thread 100 and the forming hole 11, so that the core-spun sewing thread 100 in the thread forming hole 11, which is closer to the torsion channel 31, is less likely to be twisted, and the filaments 10 and the free fibers 200 at the feeding port of the thread forming hole 11 are more likely to be twisted to be reinforced, so that the torsion channel 31 only has a reinforcing effect on the thread forming hole 11, and the thread forming operation in the forming hole 11 is not affected.
In addition, the core-spun sewing thread 100 positioned below the twisting passage 31 is repeatedly twisted, and stress is released, so that the strength of the core-spun sewing thread 100 can be better enhanced.
Example 3:
example 3 of the present invention described with reference to example 1 differs from example 1 in that:
as shown in fig. 11, in the step d, the spiral protrusion 32 is disposed in the torsion channel 31, and the protrusion 32 performs spiral extrusion on the core-spun sewing thread 100.
The wrapping grasping force to the core-spun sewing thread 100 is enhanced by the protrusions 32, so that when the torsion channel 31 wraps the core-spun sewing thread 100, the torsion channel 31 can wrap the core-spun sewing thread 100 more stably, and when the torsion channel 31 is twisted, the core-spun sewing thread 100 does not slip with the torsion channel 31.
Example 4:
description of the invention with reference to example 1 example 4 differs from example 1 in that:
as shown in fig. 11, in the step d, raised bumps 33 are provided in the torsion channels 31, and the bumps 33 press the core-spun sewing thread 100.
By providing the protrusions 33, the grip of the twisting pathway 31 to the core-spun sewing thread 100 is enhanced while the bonding between the free fibers 200 and the filaments 10 is promoted, and the protrusions 33 may cause the free fibers 200, which are partially not tightly bonded, to be separated from the filaments 10.
Example 5:
example 5 of the present invention described with reference to example 1 differs from example 1 in that:
as shown in fig. 10, in the step d, the torsion channel 31 is disposed in a closing-up manner along the conveying direction of the core-spun sewing thread 100, and performs circumferential extrusion on the core-spun sewing thread 100.
It should be noted that, this application is through setting up the twist channel 31 of binding off form for core-spun sewing thread 100 is when being wrapped by twist channel 31, core-spun sewing thread 100 still carries along the axial, can not shrink by twist channel 31 in the annular, reach the purpose that promotes core-spun sewing thread 100 intensity, and after core-spun sewing thread 100 breaks away from twist channel 31, the core-spun sewing thread 100 of annular shrink can lose the annular force and obtain temporary inflation, and in the inflation twinkling of an eye, twist again by twist channel 31, a tight one, and the in-process of twisting again, can strengthen the intensity of core-spun sewing thread 100 greatly, eliminate the inside stress of core-spun sewing thread 100.
Example 6:
example 6 of the present invention described with reference to example 1 differs from example 1 in that:
as shown in fig. 5 and 6, in the step d, the clamping plate 311 is elastically stretched, and when the clamping plate 311 is folded to form the torsion channel 31, an elastic pressing force is applied to the core-spun sewing thread 100.
It should be noted that, the elastic expansion setting of the clamping plate 311 is adopted in the application, so that in the process of combining the clamping plate 311 to form the torsion channel 31, self-adaptive adjustment can be performed, interference can not be caused, and meanwhile, the coating force between the torsion channel 31 and the core-spun sewing thread 100 is enhanced.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The processing method of the filament high-strength polyester sewing thread is characterized by comprising the following steps of:
step a, threading filaments, namely threading the filaments (10) through a core wire guide hole, a core wire guide tube and a wire forming hole (11) in sequence and then leading the filaments out of a hollow ingot (1), wherein the core wire guide tube is positioned in a vortex chamber, and then driving the filaments (10) to be conveyed downstream;
b, threading the fiber bundles, and sequentially threading the fiber bundles (20) through an upper output chute, an electrostatic applying chamber and a lower output chute and then conveying the fiber bundles into a vortex chamber, wherein the fiber bundles (20) passing through the electrostatic applying chamber have the same charges;
step c, doubling, after entering a vortex chamber, the head end of the fiber bundle (20) enters the thread forming hole (11) along with the filament (10), the tail end of the fiber bundle (20) is separated from the fiber bundle (20) under the action of a rotating vortex in the vortex chamber to form a plurality of free fibers (200), the free fibers (200) uniformly disperse and lodge on the spindle conical surface (12) of the hollow spindle (1) under the action of the rotating vortex and like charges, the free fibers (200) are synchronous, rotate along with the rotating vortex, and the rotating free fibers (200) enter the thread forming hole (11) along with the filament (10) and are wrapped on the filament (10) to form a core-spun sewing thread (100);
step d, intermittently twisting, wherein the core-spun sewing thread (100) formed in the step c is conveyed downwards to a twisting mechanism (3) positioned below the hollow ingot (1), passes through a twisting channel (31) on the twisting mechanism (3), coats the core-spun sewing thread (100) by the twisting channel (31), and applies circumferential rotation twisting to the core-spun sewing thread (100), and specifically comprises the following steps of;
step one, cladding and twisting, wherein a plurality of groups of clamping plates (311) arranged around the core-spun sewing thread (100) are folded to form a twisting channel (31), and the twisting channel (31) is used for cladding the core-spun sewing thread (100) for rotating;
step two, releasing, wherein after the torsion channel (31) covers the rotation angle alpha of the core-spun sewing thread (100), the clamping plates (311) are dispersed, and the torsion channel (31) releases the covering of the core-spun sewing thread (100);
and thirdly, circularly, namely, circularly repeating the first step and the second step until the stress of the core-spun sewing thread (100) is eliminated, and repeatedly coating, twisting and releasing the core-spun sewing thread (100) again.
2. The method for processing the filament high-strength polyester sewing thread according to claim 1, which is characterized in that:
in the step d, the torsion channel (31) wraps the core-spun sewing thread (100) by an angle alpha of 210-300 degrees, and the time for the torsion channel (31) to release the wrapping of the core-spun sewing thread (100) is the time for the torsion channel (31) to twist by an angle of 360-alpha degrees.
3. The method for processing the filament high-strength polyester sewing thread according to claim 1, which is characterized in that:
in the step d, the twisting channel (31) is consistent with the rotation angular velocity of the hollow spindle (1), and the free fiber (200) at the inlet of the thread forming hole (11) on the hollow spindle (1) is twisted with the filament (10).
4. The method for processing the filament high-strength polyester sewing thread according to claim 1, which is characterized in that:
in the step d, a helically arranged protrusion (32) is arranged in the torsion channel (31), and the protrusion (32) performs helical extrusion on the core-spun sewing thread (100).
5. The method for processing the filament high-strength polyester sewing thread according to claim 1, which is characterized in that:
in the step d, protruding points (33) are arranged in the torsion channels (31), and the protruding points (33) are used for protruding point extrusion of the core-spun sewing thread (100).
6. The method for processing the filament high-strength polyester sewing thread according to claim 1, which is characterized in that:
in the step d, the torsion channel (31) is arranged in a closing-up manner along the conveying direction of the core-spun sewing thread (100), and performs circumferential extrusion on the core-spun sewing thread (100).
7. The method for processing the filament high-strength polyester sewing thread according to any one of claims 1 to 6, which is characterized in that:
in the step d, the clamping plates (311) are elastically telescopic, and when the clamping plates (311) are folded to form the torsion channel (31), elastic extrusion force is applied to the core-spun sewing thread (100).
8. The method for processing the filament high-strength polyester sewing thread according to claim 7, wherein the method comprises the following steps:
the clamping plate (311) is connected with the guide rod (312), the upper end and the lower end of the guide rod (312) are provided with rotary guide blocks (313), the rotary guide blocks (313) are provided with arc-shaped waist grooves (314), the end parts of the guide rod (312) are inserted into the corresponding waist grooves (314), the rotary guide blocks (313) rotate, and the clamping plate (311) is driven to fold or disperse through the guide rod (312);
the rotary guide block (313) is rotatably arranged, a gear ring (310) is sleeved on the outer side of the rotary guide block (313), the gear ring (310) is matched with a tooth-missing gear (315), and the tooth-missing gear (315) is driven by a motor (316) to rotate.
9. The method for processing the filament high-strength polyester sewing thread according to claim 8, which is characterized in that:
the outside cover of hollow spindle (1) is equipped with ring gear (310), motor (316) through driving gear (317) with ring gear (310) cooperation drives hollow spindle (1) with twist reverse passageway (31) synchronous rotation.
10. The method for processing the filament high-strength polyester sewing thread according to claim 8, which is characterized in that:
the two ends of the guide rod (312) are respectively provided with an auxiliary positioning rod (318), the auxiliary positioning rods (318) are in puncture fit with auxiliary waist grooves (319) formed in the rotary guide block (313), the auxiliary positioning rods (318) are arranged in parallel with the guide rod (312), and the auxiliary waist grooves (319) are arranged in parallel with the waist grooves (314).
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