CN102296372A - Air blast cooling method and device for spinning coarse denier fiber - Google Patents
Air blast cooling method and device for spinning coarse denier fiber Download PDFInfo
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- CN102296372A CN102296372A CN2011102392598A CN201110239259A CN102296372A CN 102296372 A CN102296372 A CN 102296372A CN 2011102392598 A CN2011102392598 A CN 2011102392598A CN 201110239259 A CN201110239259 A CN 201110239259A CN 102296372 A CN102296372 A CN 102296372A
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Abstract
The invention discloses an air blast cooling method and an air blast cooling device for spinning a coarse denier fiber. 3-7 independent temperature heating balance units are arranged between a steady pressure air chamber and a rectification layer in a filament bundle movement direction; and a temperature sensor is arranged in each temperature heating balance unit. During cooling of a filament bundle, cooling air passes through heating plates of different temperatures to form cooling air of different temperatures in each temperature heating balance region and then blows to the filament bundle in a cooling passage through the rectification layer. By adopting the process, a cooling process can be divided into 3-7 stages, and the cross air blasting temperature of each stage is reduced 3-10 DEG C in sequence, so that mild cooling of the filament bundle is realized, a high-elastic-state molecular structure has full time for arrangement, the phenomenon of inconsistent of crystallization and orientation of an inner layer and an outer layer of the coarse denier fiber is avoided, and the problems of high probability of producing a skin-core structure and influence on subsequent processing and product quality are solved.
Description
Technical field
The present invention relates to a kind of cooling means and device thereof that is used to spin coarse denier fiber, particularly a kind of cooling quench technology and device thereof that is used to produce monofilament or female silk.
Background technology
With the macromolecular material is that raw material carries out melt spinning, need carry out cooling curing, and what usually adopt is lateral blowing cooling and ring blowing cooling, and the cooling air enters the blowing wall through passage, through the over commutation after-blow to cooling off.The product fiber number is that the following thinner silk of 0.3～1.5DPF adopts ring blowing process for cooling, and the above tow of 1.0DPF generally adopts the lateral blowing process for cooling.The monofilament that existing lateral blowing process for cooling is carried out the best for specific filament number scope cools off, and be amount, rising or reduction wind pushing temperature by increasing or reduce the cooling air, thereby realization is to the cooling control of specific fiber number.
China's utility model patent (CN201817586U) discloses a kind of lateral blowing device, it is arranged on the cabinet rear portion, form by a plurality of blowings unit, each unit comprises air compartment, the air intake passage that is connected with the air compartment inlet, exports the air outlet that is connected with air compartment, is provided with the control valve that is used to control the air intake flow in its air intake passage.The lateral blowing device that this utility model provides, can control the lateral blowing size of different components separately at same spinning station, be mainly used in realization with the different process for cooling requirements that require of component, can't realize adopting different chilling temperatures to realize multistage cooling control the tow in blowing duct.
In the Chinese invention patent (CN101535537), a kind of melt spinning of synthetic filaments and the method and device of cooling of being used for disclosed, multifilament is extruded by polymer melt and is introduced into after extruding in the blowing duct in order to cooling, the cooling air is blown in the blowing duct by the blowing wall in blowing duct, and monofilament is along the blowing wall and leave its certain distance and be directed to cool off.For the cooling that obtains to adapt with specific filament linear-density, technical scheme that this invention is adopted is: will blow to blowing on the monofilament by selecting one in a plurality of operating positions to regulate, wherein in order to change the operating position of blowing wall, this blowing wall is being moved on monofilament or the direction away from monofilament.
In melt-spinning technology, enter blowing duct from the silk of filament spinning component ejection, under the lateral thrust effect of lateral blowing, slight to do parabolic shape from the lateral blowing face, in this process, there is a zone of silence in the zone of just having left spinnerets, the interval height of zone of silence is distinguished to some extent according to the difference of kind, existing lateral blowing technology for the preparation fiber number be below the 10DPF monofilament also relatively effectively, yet, in actual production process, in case its structure of lateral blowing device moulding on the production equipment is just unalterable, therefore, at the spinning product of producing different size, especially spin DPF when the coarse denier fiber product more than 10, the tow that lateral blowing is produced is because cooling velocity is too fast, cold true uniformity will be subjected to bigger influence, cause easily monfil inside and outside, the windward side produces the degree of crystallinity problem different with the degree of orientation with lee face, form the skin-core structure structure, and the irregular undesirable condition in finished product monofilament cross section, be unfavorable for the back processing of fiber, influenced the performance and the quality of product.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, a kind of lateral blowing cooling means and device thereof that cools off evenly, is convenient to control, help improving the product quality that spins coarse denier fiber is provided.
Realize that the technical scheme that the object of the invention adopted is: provide a kind of blowing cooling means that is used to spin coarse denier fiber, tow through the filament spinning component ejection enters in the blowing duct, the cooling air is blown into blowing duct after by blowing wall rectification in blowing duct, carry out the cooling processing of tow, described cooling processing is divided into 3～7 sections to be carried out, and the lateral blowing temperature of each section reduces by 3～10 ℃ successively.
In cooling process technology scheme of the present invention, preferred scheme is that described cooling processing is divided into 5 sections, and the lateral blowing temperature of each section is followed successively by 40～45 ℃, 30～40 ℃, and 25～30 ℃, 22～25 ℃ and 19～23 ℃.
For realizing the foregoing invention method, the invention provides a kind of cold wind blower that is used to spin coarse denier fiber, comprise blowing duct, air outlet, voltage stabilizing wind chamber, rectification layer; Between voltage stabilizing wind chamber and rectification layer, along the tow moving direction 3～7 cooling air heating units are installed, form separate temperature heating equilibrium area, difference mounting temperature sensor in each temperature heating equilibrium area; Described cooling air heating unit comprises dividing plate and heating plate, have through hole on the heating plate, heating plate is communicated with voltage stabilizing wind chamber, the cooling air that enters voltage stabilizing wind chamber from air outlet enters blowing duct by temperature heating equilibrium area and rectification layer again after the heating of the heating plate on the cooling air heating unit of different temperatures.
In the technique scheme, described temperature sensor is connected with programmable logic controller (PLC), and programmable logic controller (PLC) is by the temperature of executive circuit control heating plate.
In technical solution of the present invention, preferred scheme is that 5 cooling air heating units are installed between voltage stabilizing wind chamber and rectification layer, the height of each cooling air heating unit is followed successively by 20～30CM, 29～40CM, 39～60CM, 39～60CM, all the other height dimensions in voltage stabilizing wind chamber are the height of the 5th temperature heating balancing unit.
Principle of the present invention is: in the process for cooling of melt spinning, first area from the spinnerets below, each regional temperature is set adjusting in mode from high to low, the amplitude of regulating is decided according to the fiber number of monofilament, zone to the end is normal chilling temperature, adopts this multistage adjusting lateral blowing method of temperature, has realized gentle cooling, avoid the fiber sheath cored structure effectively, and improved the cross section systematicness of fibrous finished product.The present invention is on existing common spinning equipment, to making improvements slightly in the voltage stabilizing wind chamber, be provided with dividing plate and heating plate, and carry out temperature by programmable logic controller (PLC) (PLC) and set, in the space of heating plate and rectification layer, a point for measuring temperature is arranged, PLC controls heating according to the signal of point for measuring temperature feedback to the electrical bar in the heating plate, and the deviation of control temperature can reach below 0.2 degree, reaches the requirement of technology easily.The cooling air that enters from the air channel by the heating of zones of different heating plate, makes it controlled, reaches technological requirement.
Compared with prior art, the present invention has following significant beneficial effect:
1, the present invention adopts the lateral blowing process for cooling of multistage adjusting temperature, has realized gentle cooling, has avoided the fiber core-skin effectively.
, cold wind blower provided by the invention can be according to product specification and technology, regulate and control chilling temperature easily, compared with prior art can be more suitable for the moulding of coarse denier fiber, improved the uniformity that ribbon is done, this paricular value of crow with respect to existing coarse denier fiber has reduced 0.25, has realized that the degree of orientation and degree of crystallinity are more even.
Description of drawings
Fig. 1 is the structural representation of the lateral blowing device that provides of the embodiment of the invention;
Fig. 2 is the structural representation of a cooling air heating unit providing of the embodiment of the invention;
Wherein, 1, spinning manifold; 2, filament spinning component; 3, blowing duct; 4, tow; 5, coiling oiling roller; 6, rectification layer; 7, temperature heating equilibrium area; 8, air outlet; 9, voltage stabilizing wind chamber; 10, temperature sensor; 11, dividing plate; 12, first temperature heating equilibrium area heating plate; 13, second temperature heating equilibrium area heating plate; 14, the 3rd temperature heating equilibrium area heating plate; 15, the 4th temperature heating equilibrium area heating plate; 16, the 5th temperature heating equilibrium area heating plate; 17, electric heating tube; 18, through hole.
Specific implementation method
Below in conjunction with drawings and Examples, technical solution of the present invention is further described.
Embodiment 1
Referring to accompanying drawing 1, it is the structural representation of the lateral blowing device that provides of present embodiment; In spinning manifold 1, enter blowing duct 3 from the tow 4 of filament spinning component 2 ejections, under the lateral thrust effect of lateral blowing, slight to do parabolic shape from the lateral blowing face, in this process, there is a zone of silence in the zone of just having left spinnerets, the interval height of zone of silence is distinguished to some extent according to the difference of kind, yet, in actual production process, in case its structure of lateral blowing device moulding on the production equipment just can not change, therefore, adopt the temperature of multistage adjusting lateral blowing to realize that it is necessary avoiding the generation of core-skin.
The lateral blowing device that is provided, between voltage stabilizing wind chamber 9 and rectification layer 6, along tow moving direction (vertically) 5 separate cooling air heating units are installed, are formed 5 temperature heating equilibrium areas, difference mounting temperature sensor 10 in each temperature heating balancing unit; The cooling air heating unit comprises dividing plate 11 and heating plate, has through hole on the heating plate, and heating plate is communicated with voltage stabilizing wind chamber.
The cooling air enters voltage stabilizing wind chamber 9 through air outlet 8, dividing plate 11 is divided into five separate temperature heating equilibrium areas 7 with voltage stabilizing wind chamber along the tow moving direction, be followed successively by first temperature heating equilibrium area to the, five temperature heating equilibrium area, the temperature of each temperature heating equilibrium area is by different cooling air heating unit heating; In 1～5 cooling air heating unit, heating plate 12,13,14,15 and 16 is set respectively successively, the heating cooling air also reaches different temperature, have through hole on the heating plate, cooling air in the voltage stabilizing wind chamber to each temperature heating equilibrium area, forms the cooling air of different temperatures by through hole after the heating plate heating of different temperatures, blow to tow through rectification layer 6 again, cooled tow oils through coiling oiling roller 5 and enters the processing of next procedure again.
Referring to accompanying drawing 2, it is the structural representation of a cooling air heating unit providing of present embodiment, and electric heating tube 17 is installed in the heating plate 12, has through hole 18 on the heating plate; Mounting temperature sensor in each temperature heating equilibrium area of lateral blowing device, programmable logic controller (PLC) (PLC) is connected with temperature control executive circuit with temperature sensor respectively, and the heating tube heating on the control heating plate reaches process for cooling requirement temperature.
By technical solution of the present invention, the present embodiment production specification is the product of 300dtex/12f and 200dtex/10f, adopts the process for cooling of five sections different temperatures, and concrete process conditions are as follows:
First temperature heating balance interval, what adopt is that temperature is than higher blowing temperature, generally be controlled at 45 ℃, this interval highly is chosen in 30CM, and second interval temperature is controlled at 39 ℃, highly be chosen in 40CM, the 3rd interval temperature is controlled at 29 ℃, highly is 60CM, and the 4th interval temperature is controlled at 24 ℃, highly be 60CM, later temperature is controlled at 21 ℃.
The product of two kinds of specifications that present embodiment provides is through checking its quality index referring to table 1.
Table 1 is the product that provides of present embodiment and the quality comparing result of Comparative Examples product.Comparative Examples is the product by the preparation of prior art process for cooling condition.
Table 1
In the table 1, the lousiness radical of high-class product is a 0/volume.
By the correction data of table 1 as can be seen, adopt technical solution of the present invention, product quality is significantly improved.
Adopt this technology, realized gentleness cooling, avoided crystallization of heavy denier yarn ectonexine and the different problem of orientation, overcome the consequence that is easy to generate skin-core structure tow.If the kind filament number of producing, can also be adjusted each interval temperature when above greater than 25DPF, can adapt to the effect of coarse denier fiber cooling comprehensively.
The filament number scope that technical solution of the present invention adapts to is 6～40dtex, and the total fiber number scope of adaptation is 100～1000dtex.By improvement to common spinning equipment, a kind of melt spinning cooling coarse denier fiber device that is used for is provided, make the cooling procedure of coarse denier fiber can avoid or reduce the generation of core-skin mechanism.Originally the cooling device that provides can be controlled easily to the cooling in each stage of different filament numbers, can implement different chilling temperature in each stage according to the fiber of thick dawn kind, has improved the quality of product.Simultaneously, according to the product requirement of different size,, satisfy the process for cooling requirement by each regional temperature of heating plate of Controlled by Programmable Controller.
Claims (5)
1. blowing cooling means that is used to spin coarse denier fiber, tow through the filament spinning component ejection enters in the blowing duct, the cooling air is blown into blowing duct by the blowing wall in blowing duct, carry out the cooling processing of tow, it is characterized in that: described cooling processing is divided into 3～7 sections to be carried out, and the lateral blowing temperature of each section reduces by 3～10 ℃ successively.
2. a kind of blowing cooling means that is used to spin coarse denier fiber according to claim 1, it is characterized in that: described cooling processing is divided into 5 sections, and the lateral blowing temperature of each section is followed successively by 40～45 ℃, 30～40 ℃, 25～30 ℃, 20～25 ℃ and 17～23 ℃.
3. a cold wind blower that is used to spin coarse denier fiber comprises blowing duct, air outlet, voltage stabilizing wind chamber, rectification layer; It is characterized in that: between voltage stabilizing wind chamber and rectification layer, 3～7 cooling air heating units are installed, are formed separate temperature heating equilibrium area, difference mounting temperature sensor in each temperature heating equilibrium area along the tow moving direction; Described cooling air heating unit comprises dividing plate and heating plate, have through hole on the heating plate, heating plate is communicated with voltage stabilizing wind chamber, the cooling air that enters voltage stabilizing wind chamber from air outlet enters blowing duct by temperature heating equilibrium area and rectification layer again after the heating of the heating plate on the cooling air heating unit of different temperatures.
4. a kind of cold wind blower that is used to spin coarse denier fiber according to claim 3, it is characterized in that: 5 cooling air heating units are installed between voltage stabilizing wind chamber and rectification layer, the height of each cooling air heating unit is followed successively by 20～30CM, 29～40CM, 39～60CM, 39～60CM, all the other height dimensions in voltage stabilizing wind chamber are the height of the 5th temperature heating balancing unit.
5. a kind of cold wind blower that is used to spin coarse denier fiber according to claim 3, it is characterized in that: described temperature sensor is connected with programmable logic controller (PLC), and programmable logic controller (PLC) is by the temperature of executive circuit control heating plate.
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| CN2011102392598A CN102296372A (en) | 2011-08-19 | 2011-08-19 | Air blast cooling method and device for spinning coarse denier fiber |
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| CN2011102392598A CN102296372A (en) | 2011-08-19 | 2011-08-19 | Air blast cooling method and device for spinning coarse denier fiber |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105624811A (en) * | 2016-03-09 | 2016-06-01 | 湖北新阳特种纤维股份有限公司 | Dry spinning flash evaporation control device and dry spinning flash evaporation control method |
| CN106381536A (en) * | 2016-11-30 | 2017-02-08 | 南京右转信息科技有限公司 | Subsection cooling device for melt spinning |
| CN106521665A (en) * | 2016-10-12 | 2017-03-22 | 桐乡市中辰化纤有限公司 | Production method of bright and ultra-coarse denier16f FDY fiber |
| CN106637443A (en) * | 2017-02-22 | 2017-05-10 | 天鼎丰聚丙烯材料技术有限公司 | Quenching air device and spinning machine |
| CN106868612A (en) * | 2017-03-28 | 2017-06-20 | 苏州市朗润纺织科技有限公司 | Cooling device in spinning |
| CN109355719A (en) * | 2018-12-04 | 2019-02-19 | 吴江精美峰实业有限公司 | A kind of spinning multistage cross air blowing device |
| CN110747518A (en) * | 2019-11-28 | 2020-02-04 | 青岛大学 | Spinning system and spinning equipment based on solution spinning technology |
| CN111910271A (en) * | 2020-06-19 | 2020-11-10 | 中国纺织科学研究院有限公司 | Spinning equipment and slow cooling device thereof |
| CN112281304A (en) * | 2020-09-15 | 2021-01-29 | 浙江金三发卫生材料科技有限公司 | Electrostatic electret melt-blown non-woven fabric and preparation method thereof |
| CN114592244A (en) * | 2022-02-27 | 2022-06-07 | 浙江坤兴化纤科技有限公司 | Environment-friendly processing technology of high-strength polyester POY |
| CN115434025A (en) * | 2022-08-04 | 2022-12-06 | 南通文凯化纤有限公司 | Forming device for graphene filament fibers |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105624811A (en) * | 2016-03-09 | 2016-06-01 | 湖北新阳特种纤维股份有限公司 | Dry spinning flash evaporation control device and dry spinning flash evaporation control method |
| CN106521665A (en) * | 2016-10-12 | 2017-03-22 | 桐乡市中辰化纤有限公司 | Production method of bright and ultra-coarse denier16f FDY fiber |
| CN106381536A (en) * | 2016-11-30 | 2017-02-08 | 南京右转信息科技有限公司 | Subsection cooling device for melt spinning |
| CN106637443B (en) * | 2017-02-22 | 2020-04-14 | 天鼎丰聚丙烯材料技术有限公司 | Cross air blowing device and spinning machine |
| CN106637443A (en) * | 2017-02-22 | 2017-05-10 | 天鼎丰聚丙烯材料技术有限公司 | Quenching air device and spinning machine |
| CN106868612A (en) * | 2017-03-28 | 2017-06-20 | 苏州市朗润纺织科技有限公司 | Cooling device in spinning |
| CN109355719A (en) * | 2018-12-04 | 2019-02-19 | 吴江精美峰实业有限公司 | A kind of spinning multistage cross air blowing device |
| CN110747518A (en) * | 2019-11-28 | 2020-02-04 | 青岛大学 | Spinning system and spinning equipment based on solution spinning technology |
| CN110747518B (en) * | 2019-11-28 | 2024-09-17 | 青岛大学 | Spinning system and spinning equipment based on solution spinning technology |
| CN111910271A (en) * | 2020-06-19 | 2020-11-10 | 中国纺织科学研究院有限公司 | Spinning equipment and slow cooling device thereof |
| CN111910271B (en) * | 2020-06-19 | 2021-12-17 | 中国纺织科学研究院有限公司 | Spinning equipment and slow cooling device thereof |
| CN112281304A (en) * | 2020-09-15 | 2021-01-29 | 浙江金三发卫生材料科技有限公司 | Electrostatic electret melt-blown non-woven fabric and preparation method thereof |
| CN114592244A (en) * | 2022-02-27 | 2022-06-07 | 浙江坤兴化纤科技有限公司 | Environment-friendly processing technology of high-strength polyester POY |
| CN115434025A (en) * | 2022-08-04 | 2022-12-06 | 南通文凯化纤有限公司 | Forming device for graphene filament fibers |
| CN115434025B (en) * | 2022-08-04 | 2023-10-20 | 南通文凯化纤有限公司 | Forming device for graphene filament fibers |
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Application publication date: 20111228 |