CN108118413B - Spinning method for manufacturing crimped filaments - Google Patents

Spinning method for manufacturing crimped filaments Download PDF

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Publication number
CN108118413B
CN108118413B CN201711293596.9A CN201711293596A CN108118413B CN 108118413 B CN108118413 B CN 108118413B CN 201711293596 A CN201711293596 A CN 201711293596A CN 108118413 B CN108118413 B CN 108118413B
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fixing
filament
chemical fiber
temperature
teflon
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CN108118413A (en
Inventor
朱爱民
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Nantong Suyuan Chemical Fiber Co ltd
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Nantong Suyuan Chemical Fiber Co ltd
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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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/02—Heat treatment
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D7/00—Collecting the newly-spun products
    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

The invention provides a spinning method for manufacturing crimped filaments, which is characterized by comprising the following steps: the method comprises the following specific steps: (1) winding the polyethylene filament bundle; (2) fully drafting the polyethylene tows; the method comprises the following steps: heating the high-temperature Teflon tows at low temperature by a first spinning hot roll set consisting of a heated hot roll and a non-heated splitting roll, drafting the high-temperature heated high-temperature Teflon tows by a second spinning hot roll set consisting of a heated hot roll and a non-heated splitting roll to form high-temperature filament yarns, and performing primary high-temperature heat setting on the high-temperature filament yarns; (3) and further independently performing high-temperature heat setting on the initially high-temperature heat-set high-teflon filaments by a third spinning hot roller group consisting of a heated hot roller and an unheated yarn dividing roller to form the high-teflon fully-drawn filaments.

Description

Spinning method for manufacturing crimped filaments
Technical Field
The invention relates to the technical field of chemical fiber production processes, in particular to a spinning method for manufacturing crimped filaments.
Background
The Z-shaped broken line type structure of the polymer molecular chain enables the fiber to have the advantages of being softer in hand feeling, easier to care and dye, good in color fastness to washing and ultraviolet resistance, acid-resistant and alkali-resistant, not easy to age and good in size stability of the fabric compared with polyester and nylon. The advantages enable the high Teflon fabric to have wide application prospect in the fields of novel clothes and home textiles. The high-grade costume, the swimsuit, the close-fitting costume, the sportswear and other elastic costumes can be developed by utilizing the high-Terylene fiber, and the manufactured costume has the advantages of comfortable wearing, soft touch, easy washing, quick drying and no ironing, and meets the requirement of fast pace of life of people.
However, since the technology of foreign companies which master the technology of producing the filaments of the gaoton is blocked, a few domestic manufacturers are in respective closed exploratory trial production stages at present. According to the knowledge of the applicant to the industry, the common practice of part of domestic manufacturers is as follows: the technology for manufacturing the fully drawn PET (polyester) filament is improved on the basis of the technology for manufacturing the PET filament. The manufacturing process sequentially comprises the following steps: the method comprises the steps of preparing a material for the Teflon slice raw material, melting the prepared material for the Teflon slice raw material, spinning a Teflon melt, cooling and bundling a plurality of Teflon nascent fibers and drawing and winding the Teflon tows, wherein all the steps are combined and continuously completed in sequence. Wherein, the drafting and winding process of the Teflon tows comprises the following steps: and fully drafting the Teflon tow. In the step, the high-temperature polyethylene filament bundle is heated at low temperature by a pair of low-temperature hot rollers (consisting of two low-temperature hot rollers), and then is drawn by a pair of high-temperature hot rollers (consisting of two high-temperature hot rollers) or a pair of high-temperature single rollers (consisting of one high-temperature hot roller and one filament separating cold roller), and the drawn high-temperature polyethylene filament bundle (namely the high-temperature polyethylene filament) is subjected to high-temperature heat setting. The glass transition temperature of the Hilon tows is low, so that only one low-temperature heating roller is needed for heating, obviously, for spinning the Hilon filaments, a pair of low-temperature heating rollers is used for heating the Hilon tows at low temperature, the heating rollers are redundant, equipment engineering configuration is wasted (for example, the redundant heating rollers need to rotate, the driving power and the equipment unit price of the heating rollers are far larger than those of the splitting rollers, the heating rollers also need oil cooling pipelines for bearing cooling and other engineering configurations), consumption is large, economic benefit is affected, and equipment production capacity cannot meet market requirements. And because the Teflon tows have special Z-shaped macromolecular structures, the Teflon tows generate larger drafting stress in the drafting system after being drafted, and the drafting stress in the Teflon tows can be effectively eliminated by heating and shaping at high temperature for a long time. However, the foregoing high temperature heat setting of the filament bundle is performed only by a pair of high temperature hot rolls or a pair of high temperature single rolls, because the pair of high temperature hot rolls is limited by the effective length of the high temperature hot rolls, the number of turns of the filament bundle wound around the pair of high temperature hot rolls is limited, and therefore, it is difficult to extend the heat setting time of the filament bundle (i.e., the time required for the filament bundle to pass from the pair of high temperature hot rolls to the filament bundle leaving the pair of high temperature hot rolls). Similarly, the pair of high temperature single rollers is limited in effective length by the high temperature hot rollers, so that the number of turns of the filament bundle wound around the pair of high temperature single rollers is limited, and thus it is difficult to extend the heat-setting time of the filament bundle (i.e., the time required for the filament bundle to pass from the pair of high temperature single rollers to the exit of the filament bundle from the pair of high temperature single rollers). Therefore, the heat setting of the Teflon tows by only one pair of high-temperature hot rollers or only one pair of high-temperature single rollers is difficult to effectively eliminate the drafting stress in the tows, so that the Teflon filaments are easy to relax and retract along the axial direction in the winding process, the cakes are badly formed, the unwinding is difficult, and the high-quality filaments are difficult to produce.
Disclosure of Invention
To overcome the problems of the prior art, the present invention provides a spinning method for manufacturing crimped filaments.
The technical scheme adopted by the invention is as follows: a spinning method for manufacturing crimped filaments is characterized in that: the method comprises the following specific steps:
(1) winding the polyethylene filament bundle;
(2) fully drafting the polyethylene tows; the method comprises the following steps: heating the high-temperature Teflon tows at low temperature by a first spinning hot roll set consisting of a heated hot roll and a non-heated splitting roll, drafting the high-temperature heated high-temperature Teflon tows by a second spinning hot roll set consisting of a heated hot roll and a non-heated splitting roll to form high-temperature filament yarns, and performing primary high-temperature heat setting on the high-temperature filament yarns;
(3) and further independently performing high-temperature heat setting on the initially high-temperature heat-set high-teflon filaments by a third spinning hot roller group consisting of a heated hot roller and an unheated yarn dividing roller to form the high-teflon fully-drawn filaments.
The high Teflon tows are sequentially and respectively wound on the roller surfaces of the first spinning hot roller group, the second spinning hot roller group and the third spinning hot roller group for 5 circles; the heating temperature of the first spinning hot roller group is 40 ℃, the heating temperature of the second spinning hot roller group is 100 ℃, and the heating temperature of the third spinning hot roller group is 100 ℃; the linear speed of the second spinning hot roller set is 1200m/min, and the drafting ratio between the second spinning hot roller set and the first spinning hot roller set is 1.52;
also comprises a pretreatment step: preparing a material of a polytron chip raw material, melting the prepared polytron chip raw material, spinning a polytron melt, cooling and bundling a plurality of polytron nascent fibers and drawing and winding a polytron tow;
the melting process is to melt the melt into a polyethylene melt in a subarea mode through a screw extruder; controlling the melting temperature of each area of the screw extruder as follows: 202 degrees in a first region, 273 degrees in a second region, 280 degrees in a third region, 286 degrees in a fourth region, 294 degrees in a fifth region and 296 degrees in a sixth region; respectively extruding the melt into melt distribution pipes;
the spinning process produces at least one filament bundle from a melt of the polytron by spinning a plurality of filaments, wherein the filament bundle is stretched after cooling and compressed in a stuffer box to form a yarn plug, wherein the yarn plug is opened into a crimped yarn and wound on a chemical fiber tube;
the cooling and bundling process of the plurality of the PET nascent fibers specifically comprises the following steps: the melt is extruded from a spinneret plate, primary fibers are formed through air blowing and cooling and then are bundled, the air blowing and cooling adopt a side air blowing mode, the side air blowing is transverse air blowing and cooling, namely cooling air flows in a direction perpendicular to the running direction of strands, and the technological parameters are as follows: the wind speed is 3-5 m/s, the wind temperature is 18-25 ℃, and the humidity is 30-60%; the water content of the nascent fiber is 10-12 wt%.
In some embodiments, the diameter of the heated roll is 2 times greater than the diameter of the shredding roll.
In some embodiments, the preparation of the material for the teflon section sequentially comprises: screening the teflon slices and drying the screened teflon slice raw materials; the method for slicing and screening the Golgin comprises the following steps: putting the high Teflon slice raw material into a vibration screening device for screening, screening out powder and particles with inconsistent particle sizes in the high Teflon slice raw material to obtain the high Teflon slice raw material meeting the requirement, conveying the screened high Teflon slice raw material to a storage bin for later use, wherein the viscosity of the screened high Teflon slice raw material is 0.78dL g-1The melting point is 228 ℃;
in some embodiments, the step of drying the screened material of the polynon chip comprises: conveying the screened material of the Teflon slice raw material to drying equipment for drying treatment, wherein the drying equipment selects a primary drying route; the drying temperature is 120 ℃, the dew point temperature of drying air is-65 ℃, and the drying time is 3.2 hours, so that the humidity of the material of the Gateron slice is less than or equal to 28 ppm.
In some embodiments, the winding of the teflon tow is filament winding using a multifilament grooved chemical fiber tube.
The multi-filament groove chemical fiber tube comprises a multi-filament groove chemical fiber tube body, wherein a lower baffle is arranged below the multi-filament groove chemical fiber tube body, and a base is arranged below the lower baffle; an upper baffle is arranged above the multi-filament groove chemical fiber pipe body; an upper fixing pipe is arranged above the upper baffle; the innovation points are as follows: the chemical fiber winding device is characterized in that a plurality of chemical fiber winding bulges are arranged on the multi-thread groove chemical fiber tube body, the chemical fiber winding bulges are integrally formed on the multi-thread groove chemical fiber tube body, the chemical fiber winding bulges are arranged into a transverse S-shaped shape, and the chemical fiber winding bulges are arranged at uneven intervals and are densely distributed from top to bottom.
In some embodiments, the spacing between the chemical fiber winding protrusions is 5-8cm or 12-15 cm.
In some embodiments, the multi-filament grooved chemical fiber tube is integrally in a cone structure with a narrow upper surface and a wide lower surface.
In some embodiments, the inside of the multi-filamentized fiber tube is also provided with an internal fixing device; the internal fixing device comprises a Z-shaped frame and a fixing support, two Z-shaped ends of the Z-shaped frame are fixed on the inner wall of the multi-filament grooved chemical fiber tube, the fixing support is fixed in the middle of the inside of the multi-filament grooved chemical fiber tube in a mode of being perpendicular to the ground, and the fixing support is not in contact with the Z-shaped frame.
The invention also aims to provide a special bracket for the multi-filament grooved fiber tube, which has the innovation points that: the special bracket comprises a bracket body and a fixing clamp; the special support body is a long straight vertical rod, a plurality of fixing clamps are uniformly arranged on the vertical rod, and the fixing clamps are symmetrically arranged; the fixing clamp is matched with an internal fixing device in the multi-thread grooved chemical fiber pipe to realize the fixation of the multi-thread grooved chemical fiber pipe on the bracket.
In some embodiments, the fixing bracket in the internal fixing device of the multifilament grooved chemical fiber tube further comprises a fixing seat, the fixing seat comprises a circular chassis and a fixing device, and the fixing device is integrally installed on the circular chassis; the top of the fixing device is fixed at the bottom of the multi-filament grooved fiber tube.
In some embodiments, the fixing device comprises an arched fixing seat, the top of the arched fixing seat is a circular top, and a threaded fixing groove is formed in the arched fixing seat.
In some embodiments, the fixing clamp comprises a clamping disc and a thread fixing lug, the thread fixing lug is integrally installed on the clamping disc, a clamping groove is formed in the bottom of the clamping disc, the clamping groove is in an opening and closing shape, a clamping handle is arranged near the clamping groove, and the clamping handle controls the opening and closing of the clamping groove.
In some embodiments, the threaded securing tab includes a tab body and a threaded spring secured to the tab body.
Compared with the prior art, the invention has the beneficial effects that: abandon the drawback that adopts the recess form to wind the silk thread among the prior art, the creative protruding structure that adopts is convoluteed, protruding structure need not to imbed at the coiling in-process, and directly convolute can, it is less to the injury of chemical fibre pipe, the life of extension chemical fibre pipe, moreover, the arch of distributing on chemical fibre pipe surface can be convoluteed when carrying out different silk threads simultaneously, and can not carry out the staggered arrangement or in disorder around, guarantees winding efficiency and coiling effect. Moreover, the chemical fiber winding bulge is arranged in a transverse S-shaped shape, so that a winding radian is formed during winding, and the problem that the quality and the winding process of the silk thread are influenced due to resistance caused by mutual contact of the silk thread in the winding process is avoided. Of course, the invention considers that in the winding process, the winding quantity is not uniform due to the thickness of the silk thread, the chemical fiber winding bulges can be unevenly spaced, from top to bottom, the adjacent chemical fiber winding bulges with the sparse spacing distance are used for winding thick silk thread, the adjacent chemical fiber winding bulges with the dense spacing distance are used for winding thin silk thread, and a chemical fiber winding pipe with gradient and reasonable is formed.
Drawings
FIG. 1 is a schematic view of the overall structure of the multi-filament grooved chemical fiber tube of the present invention;
FIG. 2 is a schematic view of the internal structure of a multi-filar grooved fiber of the present invention;
FIG. 3 is a schematic view of the bracket for the chemical fiber tube with multi-filament grooves of the present invention;
FIG. 4 is a schematic view of the fixing base of the present invention;
fig. 5 is a schematic view of the structure of the fixing clip of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention discloses a spinning method for manufacturing crimped filaments.
The method comprises the following specific steps:
(1) winding the polyethylene filament bundle;
(2) fully drafting the polyethylene tows; the method comprises the following steps: heating the high-temperature Teflon tows at low temperature by a first spinning hot roll set consisting of a heated hot roll and a non-heated splitting roll, drafting the high-temperature heated high-temperature Teflon tows by a second spinning hot roll set consisting of a heated hot roll and a non-heated splitting roll to form high-temperature filament yarns, and performing primary high-temperature heat setting on the high-temperature filament yarns;
(3) and further independently performing high-temperature heat setting on the initially high-temperature heat-set high-teflon filaments by a third spinning hot roller group consisting of a heated hot roller and an unheated yarn dividing roller to form the high-teflon fully-drawn filaments.
The high Teflon tows are sequentially and respectively wound on the roller surfaces of the first spinning hot roller group, the second spinning hot roller group and the third spinning hot roller group for 5 circles; the heating temperature of the first spinning hot roller group is 40 ℃, the heating temperature of the second spinning hot roller group is 100 ℃, and the heating temperature of the third spinning hot roller group is 100 ℃; the linear speed of the second spinning hot roller set is 1200m/min, and the drafting ratio between the second spinning hot roller set and the first spinning hot roller set is 1.52;
also comprises a pretreatment step: preparing a material of a polytron chip raw material, melting the prepared polytron chip raw material, spinning a polytron melt, cooling and bundling a plurality of polytron nascent fibers and drawing and winding a polytron tow;
the melting process is to melt the melt into a polyethylene melt in a subarea mode through a screw extruder; controlling the melting temperature of each area of the screw extruder as follows: 202 degrees in a first region, 273 degrees in a second region, 280 degrees in a third region, 286 degrees in a fourth region, 294 degrees in a fifth region and 296 degrees in a sixth region; respectively extruding the melt into melt distribution pipes;
the spinning process produces at least one filament bundle from a melt of the polytron by spinning a plurality of filaments, wherein the filament bundle is stretched after cooling and compressed in a stuffer box to form a yarn plug, wherein the yarn plug is opened into a crimped yarn and wound on a chemical fiber tube;
the cooling and bundling process of the plurality of the PET nascent fibers specifically comprises the following steps: the melt is extruded from a spinneret plate, primary fibers are formed through air blowing and cooling and then are bundled, the air blowing and cooling adopt a side air blowing mode, the side air blowing is transverse air blowing and cooling, namely cooling air flows in a direction perpendicular to the running direction of strands, and the technological parameters are as follows: the wind speed is 3-5 m/s, the wind temperature is 18-25 ℃, and the humidity is 30-60%; the water content of the nascent fiber is 10-12 wt%.
Preferably, the diameter of the hot roll is 2 times larger than the diameter of the dividing roll.
Preferably, the preparation process of the material for the teflon section sequentially comprises the following steps: screening the teflon slices and drying the screened teflon slice raw materials; the method for slicing and screening the Golgin comprises the following steps: putting the material into a vibration screening device for screening, screening out powder and particles with inconsistent particle sizes in the material to obtain the material meeting the requirement, and screening the materialConveying the material to a storage bin for standby, wherein the viscosity of the sieved material of the high Teflon slice raw material is 0.78dL g-1The melting point is 228 ℃;
preferably, the step of drying the screened material of the polynon slice raw material comprises the following steps: conveying the screened material of the Teflon slice raw material to drying equipment for drying treatment, wherein the drying equipment selects a primary drying route; the drying temperature is 120 ℃, the dew point temperature of drying air is-65 ℃, and the drying time is 3.2 hours, so that the humidity of the material of the Gateron slice is less than or equal to 28 ppm.
Preferably, the filament winding is performed on the Teflon tow by adopting a multi-filament slot chemical fiber tube.
Specifically, the invention discloses the multifilament grooved chemical fiber tube, which comprises a multifilament grooved chemical fiber tube body 1, as shown in fig. 1: a lower baffle 11 is arranged below the multi-filament slot chemical fiber tube body 1, and a base 13 is arranged below the lower baffle 11; an upper baffle 10 is arranged above the multi-filament grooved chemical fiber tube body 1; an upper fixing pipe 12 is arranged above the upper baffle plate 10; as one aspect of the present invention, in this embodiment of the present invention, as shown in fig. 1: the chemical fiber winding device is characterized in that a plurality of chemical fiber winding bulges 2 are arranged on the multi-thread grooved chemical fiber tube body 1, the chemical fiber winding bulges 2 are integrally formed on the multi-thread grooved chemical fiber tube body 1, the chemical fiber winding bulges 2 are arranged into a transverse S-shaped shape, and the chemical fiber winding bulges 2 are arranged at uneven intervals and are densely arranged from top to bottom. In the invention, the defect that the silk thread is wound in a groove form in the prior art is overcome, the bulge structure is creatively adopted for winding, the bulge structure is not required to be embedded in the winding process, the winding can be directly performed, the damage to the chemical fiber tube is small, the service life of the chemical fiber tube is prolonged, and the bulges distributed on the surface of the chemical fiber tube can simultaneously perform simultaneous winding of different silk threads without staggered arrangement or random winding, so that the winding efficiency and the winding effect are ensured. Moreover, the chemical fiber winding bulge 2 is arranged in a transverse S-shaped shape, so that a winding radian is formed during winding, and the problem that the quality and the winding process of the silk thread are influenced due to resistance caused by mutual contact of the silk thread in the winding process is avoided. Of course, the invention considers that in the winding process, the winding number is not uniform due to the thickness of the silk thread, the chemical fiber winding bulges 2 can be unevenly spaced, from top to bottom, the adjacent chemical fiber winding bulges 2 which are arranged densely from sparse to dense are used for winding thick silk thread, the adjacent chemical fiber winding bulges 2 which are spaced densely are used for winding thin silk thread, and a chemical fiber winding pipe which is gradient and reasonable is formed.
Wherein, the interval between a plurality of the chemical fiber winding bulges 2 is 5-8cm or 12-15 cm. The interval between the chemical fiber winding bulges 2 with relatively sparse intervals is 12-15cm, and the interval between the chemical fiber winding bulges 2 with relatively dense intervals is 5-8 cm. In the invention, the winding bulges 2 are arranged at intervals, so that the drawing limit of the silk threads of the mutual bulge structures is not influenced, the range of the silk threads entering the bulges can be effectively ensured, the entering probability of the silk threads is improved, the conditions of end breakage and halt caused by the fact that the silk threads cannot enter the bulge structures are greatly reduced, the generation of waste silk threads is reduced, the production efficiency is improved, and the production cost is reduced.
Preferably, as shown in fig. 1 and 2: the multi-filament slot chemical fiber tube 1 is of a round table structure with a narrow upper surface and a wide lower surface. Due to the design, the chemical fiber winding bulges 2 with relatively sparse intervals are arranged on the narrow part, the chemical fiber winding bulges 2 with relatively dense intervals are arranged on the wide part, the distance limit of the silk thread entering the bulges is effectively adjusted, and the silk thread winding diversity is improved.
Preferably, as shown in fig. 2: an internal fixing device is also arranged inside the multi-filament slot chemical fiber tube 1; the internal fixing device comprises a Z-shaped frame 3 and a fixing support 4, two Z-shaped ends of the Z-shaped frame 3 are fixed on the inner wall of the multi-filament grooved chemical fiber tube 1, the fixing support 4 is fixed in the middle of the inside of the multi-filament grooved chemical fiber tube 1 in a mode of being perpendicular to the ground, and the fixing support 4 is not in contact with the Z-shaped frame 3.
In the invention, the internal fixing device mainly plays a role in fixing the chemical fiber tube, improves the tensile capacity of the chemical fiber tube and is convenient to fix. The invention plays a main role in stabilizing and fixing by arranging the Z-shaped frame 3, as shown in figure 2: the Z-shaped frame 3 is obliquely arranged and fixed to form two triangular areas, and two ends of the Z shape are fixed to the inner wall of the multi-filament groove chemical fiber pipe 1 to support and expand the inner wall of the chemical fiber pipe, so that the unsmooth operation of equipment is avoided; the fixing support 4 is fixed in the middle of the inside of the multi-filament groove chemical fiber tube 1 in a mode of being perpendicular to the ground, and mainly fixes the chemical fiber tube 1 in a set area of the chemical fiber tube, so that the fixing is convenient, and the winding is convenient.
Another objective of the present invention is to provide a special bracket for a multi-filament grooved fiber tube, as shown in fig. 3: the special bracket comprises a bracket body 5 and a fixing clamp 6; the support body 5 is a long straight vertical rod, a plurality of fixing clamps 6 are uniformly arranged on the vertical rod, and the fixing clamps 6 are symmetrically arranged; the fixing clamp 6 is matched with an internal fixing device inside the multi-thread grooved chemical fiber tube 1, so that the multi-thread grooved chemical fiber tube 1 is fixed on the support body 5. Mainly, the fixing clamp 6 is matched with the fixing support 4 in the internal fixing device to realize the fixation of the chemical fiber tube on the support body 5.
Specifically, in order to achieve a quick, effective and firm fit of the fixing clip 6 with the fixing bracket 4, in the present invention, as shown in fig. 4: the fixing support 4 in the internal fixing device of the multi-thread grooved chemical fiber tube 1 further comprises a fixing seat 40, the fixing seat 40 comprises a circular base plate 401 and a fixing device 402, and the fixing device 402 is integrally installed on the circular base plate 401; the top of the fixing device 402 is fixed at the bottom of the multi-thread grooved chemical fiber tube 1. The circular base plate 401 is a concave circular base plate, as shown in fig. 5: the fixing device 402 comprises an arched fixing seat, the top of the arched fixing seat is a circular top, and a thread fixing groove 403 is formed in the arched fixing seat. The arch fixing base has firm, steady characteristic, and arch fixing base inside is provided with thread tightening recess 403, matches with it, fixation clamp 6 is including pressing from both sides tight disc 601 and thread tightening lug 602, and the cooperation is fixed between thread tightening lug 602 and the thread tightening recess 403 to it is fixed to make to form the fitting piece between fixing base 40 and the fixation clamp 6, has increased fixed fastness, and fixed convenience, as shown in fig. 5: the thread fixing lug 602 is integrally installed on the clamping disc 601, a clamping groove (not shown in the figure) is formed in the bottom of the clamping disc 601, the clamping groove is in an opening and closing shape, a clamping handle 603 is arranged near the clamping groove, and the opening and closing of the clamping groove are controlled by the clamping handle 603. The clamping groove is mainly formed by connecting the fixing clamp 6 with the support body 5, and the clamping handle 603 is used for controlling the opening and closing of the clamping groove so as to further control whether the fixing clamp is fixed on the support body 5.
Preferably, as shown in fig. 5: the screw thread fixing lug 602 comprises a lug body 6020 and a screw thread-shaped spring 6021, wherein the screw thread-shaped spring 6021 is fixed on the lug body 6020. The structure of the thread fixing lug is optimized to be composed of the lug body 6020 and the thread-shaped spring 6021, when a matching piece is formed between the fixed seat 40 and the fixed clamp 6, the thread-shaped spring 6021 is sleeved on the lug body 6020, then the lug body 6020 with the thread-shaped spring 6021 extends into the thread fixing groove 403 to form matching fixation, and the lug body 6020 and the thread fixing groove 403 are tightly attached by utilizing the rebound force of the spring, so that the buffering of equipment is effectively slowed down, and the fixation is firmer. After the fixing seat 40 is matched and fixed with the fixing clamp 6, the clamping handle 603 can be selectively utilized to control the clamping groove to be opened, the fixing clamp 6 is fixed on the support body 5, the fixing clamp 6 is installed in a symmetrical mode, each pair of fixing clamps 6 are uniformly distributed, a plurality of groups of fixing clamps 6 are arranged and fixed on the support body, the chemical fiber tubes are guaranteed to work independently and are wound, and the winding efficiency is greatly improved. Of course, the clamping handle 603 can be used to control the opening of the clamping slot, the fixing clip 6 is fixed on the bracket body 5, and then the chemical fiber tube is fixed on the bracket body 5 by the cooperation of the fixing clip 6 and the fixing seat 40, which is not limited in sequence here.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. A spinning process for making crimped filaments, characterized by: the method comprises the following specific steps:
(1) winding the polyethylene filament bundle;
(2) fully drafting the polyethylene tows; the method comprises the following steps: heating the high-temperature Teflon tows at low temperature by a first spinning hot roll set consisting of a heated hot roll and a non-heated splitting roll, drafting the high-temperature heated high-temperature Teflon tows by a second spinning hot roll set consisting of a heated hot roll and a non-heated splitting roll to form high-temperature filament yarns, and performing primary high-temperature heat setting on the high-temperature filament yarns;
(3) further independently performing high-temperature heat setting on the initially high-temperature heat-set high-telon filaments by a third spinning hot roller group consisting of a heated hot roller and a non-heated yarn splitting roller to form the high-telon fully-drawn filaments;
the high Teflon tows are sequentially and respectively wound on the roller surfaces of the first spinning hot roller group, the second spinning hot roller group and the third spinning hot roller group for 5 circles; the heating temperature of the first spinning hot roller group is 40 ℃, the heating temperature of the second spinning hot roller group is 100 ℃, and the heating temperature of the third spinning hot roller group is 100 ℃; the linear speed of the second spinning hot roller set is 1200m/min, and the drafting ratio between the second spinning hot roller set and the first spinning hot roller set is 1.52;
also comprises a pretreatment step: preparing a material of a polytron chip raw material, melting the prepared polytron chip raw material, spinning a polytron melt, cooling and bundling a plurality of polytron nascent fibers and drawing and winding a polytron tow;
the melting process is to melt the melt into a polyethylene melt in a subarea mode through a screw extruder; controlling the melting temperature of each area of the screw extruder as follows: 202 degrees in a first region, 273 degrees in a second region, 280 degrees in a third region, 286 degrees in a fourth region, 294 degrees in a fifth region and 296 degrees in a sixth region; respectively extruding the melt into melt distribution pipes;
the spinning process produces at least one filament bundle from a filament bundle of a high-tenacity polyester by spinning a plurality of filaments, wherein the filament bundle is stretched after cooling and compressed in a stuffer box to form a yarn plug, wherein the yarn plug is opened into a crimped yarn and wound on a chemical fiber tube;
the cooling and bundling process of the plurality of the PET nascent fibers specifically comprises the following steps: the melt is extruded from a spinneret plate, primary fibers are formed through air blowing and cooling and then are bundled, the air blowing and cooling adopt a side air blowing mode, the side air blowing is transverse air blowing and cooling, namely cooling air flows in a direction perpendicular to the running direction of strands, and the technological parameters are as follows: the wind speed is 3-5 m/s, the wind temperature is 18-25 ℃, and the humidity is 30-60%; the water content of the nascent fiber is 10-12 wt%;
the method comprises the following steps of (1) winding the Teflon tows by adopting a multi-filament groove chemical fiber pipe for filament winding;
the multi-filament-groove chemical fiber pipe comprises a multi-filament-groove chemical fiber pipe body, wherein a lower baffle is arranged below the multi-filament-groove chemical fiber pipe body, and a base is arranged below the lower baffle; an upper baffle is arranged above the multi-filament groove chemical fiber pipe body; an upper fixing pipe is arranged above the upper baffle; the chemical fiber winding bulges are integrally formed on the multi-thread groove chemical fiber tube body and are arranged in a transverse S-shaped shape, and the chemical fiber winding bulges are unevenly distributed at intervals from top to bottom in a sparse-to-dense arrangement manner;
an internal fixing device is also arranged in the multi-filament grooved fiber tube; the internal fixing device comprises a Z-shaped frame and a fixing support, two Z-shaped ends of the Z-shaped frame are fixed on the inner wall of the multi-filament grooved chemical fiber tube, the fixing support is fixed in the middle of the inside of the multi-filament grooved chemical fiber tube in a mode of being vertical to the ground, and the fixing support is not in contact with the Z-shaped frame;
the multi-filament groove chemical fiber tube also comprises a special bracket, wherein the special bracket comprises a bracket body and a fixing clamp; the support body is a long straight vertical rod, a plurality of fixing clamps are uniformly arranged on the vertical rod, and the fixing clamps are symmetrically arranged; the fixing clamp is matched with an internal fixing device in the multi-wire grooved chemical fiber pipe to realize the fixing of the multi-wire grooved chemical fiber pipe on the bracket body, and the fixing clamp is matched with a fixing bracket in the internal fixing device to realize the fixing of the chemical fiber pipe on the bracket body;
the whole multi-filament slot chemical fiber pipe is of a round table structure with a narrow upper surface and a wide lower surface;
the fixing clamp comprises a clamping disc and a thread fixing lug, the thread fixing lug is matched and fixed with a thread fixing groove, the thread fixing lug is integrally formed and installed on the clamping disc, a clamping groove is formed in the bottom of the clamping disc and is in an opening and closing shape, a clamping handle is arranged near the clamping groove, and the clamping handle controls the opening and closing of the clamping groove;
the thread fixing lug comprises a lug body and a thread-shaped spring, and the thread-shaped spring is fixed on the lug body.
2. A spinning process for making a coiled filament according to claim 1, characterized in that: the diameter of the hot roller is 2 times larger than that of the filament separating roller.
3. A spinning process for making a coiled filament according to claim 1, characterized in that: the material preparation process of the material for the Gateron slices sequentially comprises the following steps: screening the teflon slices and drying the screened teflon slice raw materials; the method for slicing and screening the Golgin comprises the following steps: putting the high Teflon slice raw material into a vibration screening device for screening, screening out powder and particles with inconsistent particle sizes in the high Teflon slice raw material to obtain the high Teflon slice raw material meeting the requirement, conveying the screened high Teflon slice raw material to a storage bin for later use, wherein the viscosity of the screened high Teflon slice raw material is 0.78dL g-1The melting point was 228 ℃.
4. A spinning process for making a coiled filament according to claim 3, characterized in that: the step of drying the screened material of the Teflon slice raw material comprises the following steps: conveying the screened material of the Teflon slice raw material to drying equipment for drying treatment, wherein the drying equipment selects a primary drying route; the drying temperature is 120 ℃, the dew point temperature of drying air is-65 ℃, and the drying time is 3.2 hours, so that the humidity of the material of the Gateron slice is less than or equal to 28 ppm.
5. A spinning process for making a coiled filament according to claim 1, characterized in that: the interval between the chemical fiber winding bulges is 5-8cm or 12-15 cm.
6. A spinning process for making a coiled filament according to claim 5, characterized in that: the fixing support in the internal fixing device of the multi-wire slot chemical fiber tube also comprises a fixing seat, the fixing seat comprises a circular chassis and a fixing device, and the fixing device is integrally installed on the circular chassis; the top of the fixing device is fixed at the bottom of the multi-filament grooved fiber tube.
7. A spinning process for making a coiled filament according to claim 6, characterized in that: the fixing device comprises an arched fixing seat, the top of the arched fixing seat is a circular top, and a thread fixing groove is formed in the arched fixing seat.
CN201711293596.9A 2017-12-08 2017-12-08 Spinning method for manufacturing crimped filaments Active CN108118413B (en)

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GB318218A (en) * 1928-08-31 1930-04-08 Universal Winding Company
CN102586905A (en) * 2012-02-28 2012-07-18 北京中丽制机工程技术有限公司 Hot-stretched Corterra pre-oriented filament yarn spinning and winding manufacturing process
CN202658319U (en) * 2012-07-12 2013-01-09 宜兴中大纺织有限公司 Warping machine creel
CN102776588A (en) * 2012-08-09 2012-11-14 北京中丽制机工程技术有限公司 Spinning-winding united manufacturing process of corterra fully-drawn long yarns
CN202897674U (en) * 2012-09-26 2013-04-24 芜湖合建路桥机械有限公司 Reel
CN204980649U (en) * 2015-06-30 2016-01-20 何小平 Long service life's weaving yarn bobbin
CN206142563U (en) * 2016-08-27 2017-05-03 嘉兴市虹亚纱管纸业有限公司 Chemical fibre pipe
CN206278771U (en) * 2016-10-25 2017-06-27 苏州荣灏纺织有限公司 Weaving tube

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