High-performance composite special fiber production device

Abstract

The utility model relates to the technical field of textile chemical fiber equipment, in particular to a high-performance composite special fiber production device which comprises a sliced raw material drying machine, and a discharge port of the sliced raw material drying machine is communicated with a feed port of a screw extruder through a pipeline; original single-component PPS fibers are changed into PPS / PET bi-component composite fibers through a spinning mechanism, the breaking strength and crimpness of the PPS fibers are improved through the performance of raw materials, the spinning performance of the PPS fibers is improved, and therefore on the premise that the same function is achieved, compared with the single-component PPS fibers, core materials of the PPS / PET bi-component composite fibers are made of cheap PET raw materials, and the cost is reduced. And the cost is greatly reduced, so that the mass production problem of the PPS / PET composite fiber is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of textile chemical fiber equipment, and particularly relates to a production device for high-performance composite special fibers. Background Art

[0002] Polyphenylene sulfide (English name: Polyphenylene Sulfide, abbreviation: PPS) was first developed successfully by Phillips Petroleum Company in the United States. Polyphenylene sulfide fiber (PPS fiber) was first developed successfully in the Netherlands, and its trade name is Ryton. It was not put into mass production until 1983. The chemical structural formula of polyphenylene sulfide fiber is composed of alternating sulfur atoms and para-substituted benzene rings. Therefore, polyphenylene sulfide fiber has excellent chemical resistance, thermal stability, high temperature resistance and flame retardancy. Besides its outstanding role in the fields of environmental protection, high-temperature flue gas filtration and chemical industry filtration, its monofilament or multifilament fabrics can also be used as demisting materials, drying fabrics for paper machines, sewing threads, various protective fabrics, electrical insulation materials and heat-resistant clothing materials; in addition, PPS fiber can be made into long fiber reinforced composites and used in the fields of military and aerospace. Treating PPS fiber fabric with a mixture mainly composed of fluorine gas, oxygen and nitrogen is particularly suitable for use as an isolation material for electrochemical energy storage devices.

[0003] In the past, there were defects such as poor spinnability of single-component polyphenylene sulfide (PPS) fiber, expensive PPS raw materials and difficulty in popularization. At present, the existing production methods of PPS / PET composite fibers have not been able to effectively carry out mass production. For this reason, we propose a production device for high-performance composite special fibers. Content of the Utility Model

[0004] Aiming at the problems in the prior art, the utility model provides a production device for high-performance composite special fibers.

[0005] The technical solution adopted by the utility model to solve its technical problems is a production device for high-performance composite special fibers, including a slice raw material dryer. The discharge port of the slice raw material dryer is connected through a pipeline to the feed port of a screw extruder. The bottom end of the discharge end of the screw extruder is connected through a pipeline to a filter. The bottom end of the filter is connected through a feeding pipeline to the feed port of a metering pump. Both discharge ports on the two sides of the metering pump are connected through pipelines to the top of a spinning box body. A skin-core composite spinneret for adjusting the specification of the discharged silk thread is detachably installed on one side side wall of the spinning box body. A winding roller is arranged below the skin-core composite spinneret. A reciprocating machine for winding and collecting is arranged on the side of the winding roller away from the slice raw material dryer. A first oiling machine is installed on the top of the spinning box body. The bottom side wall of the first oiling machine is connected through a pipeline to one side of the winding roller. A cooling air ring is fixedly installed above the winding roller and on the side wall of the slice raw material dryer.

[0006] On one side of the reciprocating machine away from the winding roller, a transfer and bundling rack is fixedly arranged. On one side of the transfer and bundling rack, a wire guiding machine for integrating silk threads is arranged. On the side of the wire guiding machine away from the transfer and bundling rack, three drafting machines are fixedly installed, and between every two drafting machines, a tension heat setting machine for continuously adjusting the fineness of the silk threads is arranged. On the side of the drafting machine away from the tension heat setting machine, a silk stacking machine is fixedly arranged. On the side of the silk stacking machine away from the drafting machine, a curling machine is arranged. On one side of the curling machine, a relaxation heat setting machine for oiling and drying the silk threads is arranged, and a second oiling device is installed at the top of the relaxation heat setting machine. On one side of the outlet end of the relaxation heat setting machine, a cutting machine for cutting the silk threads is arranged. On one side of the discharge end of the cutting machine, a packing machine for packing is arranged.

[0007] By adopting the above technical solution, the original single-component PPS fiber is changed into PPS / PET bicomponent composite fiber through the spinning mechanism. The breaking strength and crimp degree of the polyphenylene sulfide fiber are improved through the performance of the raw materials themselves, and the textile performance of the polyphenylene sulfide fiber is increased. Therefore, on the premise of having the same function, compared with the single-component PPS fiber, the core material of the PPS / PET bicomponent composite fiber uses the relatively cheap PET raw material, and the cost is greatly reduced, thus solving the mass production problem of the PPS / PET composite fiber.

[0008] Specifically, the material processed in the chip raw material dryer is polyphenylene sulfide (PPS) chips, and its melt index should be 150 - 250 g / min, and the moisture content after drying ≤ 50 PPM; the core material uses polyethylene terephthalate (PET) chips, and its intrinsic viscosity is 0.67 ± 0.02, and the moisture content after drying ≤ 50 PPM.

[0009] By adopting the above technical solution, by slicing the raw materials and processing them into the above indexes, it is convenient to process polyphenylene sulfide (PPS) subsequently, making it have good processing performance.

[0010] Specifically, the screw used in the screw extruder is a twin-screw, which has a vacuum pumping function to prevent the raw materials from degrading due to water and oxygen at high temperatures.

[0011] By adopting the above technical solution, through the structure of the twin-screw screw extruder, the degradation of the raw materials is avoided during the feeding and processing process, enabling it to be melted into a melt state to the greatest extent and avoiding waste of materials.

[0012] Specifically, the number of spinneret holes of the skin-core composite spinneret plate is 1200 - 3200 mm, the pore size is 0.2 - 0.6 mm, and the aspect ratio is 3 - 6.

[0013] By adopting the above technical solution, composite fiber silk threads with corresponding mesh numbers are produced by adjusting the mesh number of the skin-core composite spinneret plate.

[0014] Specifically, the heating temperature of the spinning in the screw extruder is 280°C to 320°C, the cooling temperature of the skin-core composite spinneret is 16 to 50°C, the winding speed of the first oiling machine is 500 to 1600 m / min, the post-treatment drawing speed of the wire guiding machine is 80 to 260 m / min, and the drawing ratio is 1.5 to 4.5 times. The temperature of the drawing machine is 180 to 280°C, and the process parameters can be adjusted according to the fiber linear density.

[0015] By adopting the above technical solutions, the process parameters of the corresponding equipment are adjusted according to the requirements of different silk thread specifications to obtain the special fiber silk thread that meets the requirements.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. Using PET raw material as the core material can effectively improve the breaking strength and crimp of polyphenylene sulfide fiber and increase the textile performance of polyphenylene sulfide fiber.

[0018] 2. On the premise of having the same function, compared with single-component PPS fiber, the core material of PPS / PET bicomponent composite fiber uses relatively cheap PET raw material, and the cost is greatly reduced;

[0019] 3. Solve the mass production problem of PPS / PET composite fiber. Description of the Drawings

[0020] The following further illustrates the utility model with reference to the drawings and embodiments.

[0021] Figure 1 Is the axonometric drawing of the utility model;

[0022] Figure 2 Is the structural connection schematic diagram at the spinning mechanism of the utility model;

[0023] Figure 3 Is the structural connection schematic diagram at the post-treatment mechanism of the utility model;

[0024] In the figure: 1. Chip raw material dryer; 2. Screw extruder; 3. Filter; 4. Spinning box; 5. Metering pump; 6. Skin-core composite spinneret; 6. Cooling ring blowing; 7. First oiling machine; 8. Winding roller; 9. Reciprocating machine; 10. Transfer and bundling rack; 11. Wire guiding machine; 12. Drawing machine; 13. Tension heat setting machine; 14. Stacking machine; 15. Crimping machine; 16. Second oiling device; 17. Relaxation heat setting machine; 18. Cutting machine; 19. Packing machine. Detailed Embodiments

[0025] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] Please refer to Figures 1-3 , an embodiment of the present utility model provides a technical solution: a high-performance composite special fiber production device, including a slice raw material dryer 1, the discharge port of the slice raw material dryer 1 is connected to the feed port of a screw extruder 2 through a pipeline, the bottom end of the discharge end of the screw extruder 2 is connected to a filter 3 through a pipeline, the bottom end of the filter 3 is connected to the feed port of a metering pump 5 through a feeding pipeline, both discharge ports on both sides of the metering pump 5 are connected to the top end of a spinning box 4 through pipelines, a core-sheath composite spinneret plate 6 for adjusting the specification of the discharged silk thread is detachably installed on one side wall of the spinning box 4, a winding roller 9 is arranged below the core-sheath composite spinneret plate 6, a reciprocating machine 10 for winding and collecting is arranged on the side of the winding roller 9 away from the slice raw material dryer 1, a first oiling machine 8 is installed on the top end of the spinning box 4, the bottom side wall of the first oiling machine 8 is connected to one side of the winding roller 9 through a pipeline, and a cooling ring blower 7 is fixedly installed above the winding roller 9 on the side wall of the slice raw material dryer 1;

[0027] A transfer beam former 11 is fixedly arranged on the side of the reciprocating machine 10 away from the winding roller 9, a wire guiding machine 12 for integrating silk threads is arranged on one side of the transfer beam former 11, three drafting machines 13 are fixedly installed on the side of the wire guiding machine 12 away from the transfer beam former 11, and a tension heat setting machine 14 for continuously adjusting the fineness of the silk thread is arranged between every two drafting machines 13. A filament overlapping machine 15 is fixedly arranged on the side of the drafting machine 13 away from the tension heat setting machine 14, a crimper 16 is arranged on the side of the filament overlapping machine 15 away from the drafting machine 13, a relaxation heat setting machine 18 for oiling and drying the silk thread is arranged on one side of the crimper 16, a second oiler 17 is installed on the top end of the relaxation heat setting machine 18, a cutting machine 19 for cutting the silk thread is arranged on one side of the outlet end of the relaxation heat setting machine 18, and a packing machine 20 for packing is arranged on one side of the discharge end of the cutting machine 19.

[0028] When in use, the original single-component PPS fiber is changed into PPS / PET double-component composite fiber through a spinning mechanism, and the breaking strength and crimp degree of the high-polyphenylene sulfide fiber are improved through the performance of the raw material itself, and the textile performance of the polyphenylene sulfide fiber is increased. Thus, on the premise of having the same function, compared with the single-component PPS fiber, the core material of the PPS / PET double-component composite fiber uses a relatively cheap PET raw material, and the cost is greatly reduced, thereby solving the problem of mass production of PPS / PET composite fiber.

[0029] As shown in the figure, the material processed in the slicing raw material dryer 1 is polyphenylene sulfide (PPS) slices, and its melt index should be 150-250 g / min, and the moisture content after drying should be ≤50 PPM; the core material is polyethylene terephthalate (PET) slices, and its intrinsic viscosity is 0.67±0.02, and the moisture content after drying should be ≤50 PPM.

[0030] When in use, by slicing and processing the raw materials into the above indicators, it is convenient to process polyphenylene sulfide (PPS) subsequently, making it have good processing performance.

[0031] As shown in the figure, the screw used in the twin-screw extruder 2 is a twin-screw, which has a vacuum pumping function to prevent the raw materials from degrading due to water and oxygen at high temperatures.

[0032] When in use, through the structure of the twin-screw extruder 2, it is possible to avoid the degradation of raw materials during the feeding and processing process, making it melt into a melt state to the greatest extent and avoiding waste of materials.

[0033] As shown in the figure, the number of spinneret holes of the skin-core composite spinneret plate is 1200-3200 mm, the pore size is 0.2-0.6 mm, and the aspect ratio is 3-6.

[0034] When in use, by adjusting the pore number of the skin-core composite spinneret plate, composite fiber filaments with corresponding mesh numbers are produced.

[0035] As shown in the figure, the heating temperature for spinning in the twin-screw extruder 2 is 280°C - 320°C, the cooling temperature of the skin-core composite spinneret plate is 16 - 50°C, the winding speed of the first oiling machine 8 is 500 - 1600 m / min, the post-treatment drawing speed of the wire guiding machine 12 is 80 - 260 m / min, and the drawing ratio is 1.5 - 4.5 times. The temperature of the drawing machine 13 is 180 - 280°C, and the process parameters can be adjusted according to the fiber linear density.

[0036] When in use, by adjusting the process parameters of the corresponding equipment according to different wire specifications requirements, special composite fiber filaments that meet the requirements can be obtained.

[0037] Working principle and usage process of the utility model: The leather material PPS and the core material PET crystals are dried by the slice raw material dryer 1 and then enter the screw extruder 2 respectively for heating and melting. Subsequently, filtration is completed through the filter 3 to ensure the quality of the melt. Then, the metering pump 5 operates to meter the two materials in a certain proportion and send them into the inside of the spinning box 4. The mixed melt is spun inside the spinning box 4 through the skin-core composite spinneret 6 calibrated as required. The filaments spun by the skin-core composite spinneret 6 are stretched by the winding roller 9 and cooled by the annular blowing of the cooling ring blower 7, and then oiled through the oil pipeline connected to the bottom of the first oiling machine 8 in cooperation with the winding roller 9, which is convenient for subsequent processing of the fiber filaments. The spun raw filaments are collected by the reciprocating machine 10 and finally packed into barrels for subsequent post-treatment processing. After the raw filaments are packed into barrels, they are placed on the transfer beam rack 11 and bundled by the wire guiding machine 12. The bundled raw filaments are preheated and stretched by three draw frames 13, and two tension heat setting machines 14 are used to make the fibers reach the ideal fineness. The stacked filament machine 15 and the crimper 16 are used to endow the fibers with a certain number of crimps and crimping degree, increasing the saturation force between the fibers and making the fibers spinnable. Subsequently, they enter the relaxation heat setting machine 18. Before entering the relaxation heat setting machine 18, the second oiler 17 installed at its top is used to oil and dry the crimped fibers. According to different requirements, the fibers are cut into specifications such as 38mm, 51mm, 76mm, and 102mm by the cutting machine 19. The cut fibers are packed by the packing machine 20 and stored in the warehouse, thus completing the production of this high-performance composite special fiber (PPS / PET).

[0038] The above shows and describes the basic principle, main features, and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-performance composite special fiber production device, characterized in that: The invention comprises a sliced ​​raw material dryer (1), wherein the discharge port of the sliced ​​raw material dryer (1) is connected to the feed port of a screw extruder (2) through a pipeline, the bottom end of the discharge end of the screw extruder (2) is connected to a filter (3), the bottom end of the filter (3) is connected to the feed port of a metering pump (5) through a feed pipe, the discharge ports on both sides of the metering pump (5) are connected to the top of a spinning box (4), and a leather cap for adjusting the specifications of the discharge yarn is detachably installed on one side wall of the spinning box (4). A winding roller (9) is arranged below the core-skin composite spinneret (6), and a reciprocating machine (10) for winding and collecting is arranged on the side of the winding roller (9) away from the slice raw material dryer (1). A first oiling machine (8) is installed on the top of the spinning box (4), and the bottom side wall of the first oiling machine (8) is connected to one side of the winding roller (9) through a pipeline, and a cooling ring blower (7) is fixedly installed on the side wall of the slice raw material dryer (1) above the winding roller (9); A transfer clustering frame (11) is fixedly arranged on one side of the reciprocating machine (10) away from the winding roller (9), a wire guide (12) for integrating the silk threads is arranged on one side of the transfer clustering frame (11), three drawing machines (13) are fixedly installed on one side of the wire guide (12) away from the transfer clustering frame (11), and a tension heat setting machine (14) for continuously adjusting the fineness of the silk threads is arranged between every two drawing machines (13), and a tension heat setting machine (14) for continuously adjusting the fineness of the silk threads is fixedly arranged on one side of the drawing machine (13) away from the tension heat setting machine (14). A wire stacking machine (15) is provided, and a crimping machine (16) is provided on the side of the wire stacking machine (15) away from the drafting machine (13), and a relaxing heat setting machine (18) for oiling and drying the silk thread is provided on one side of the crimping machine (16), and a second oiler (17) is installed on the top of the relaxing heat setting machine (18), and a cutting machine (19) for cutting the silk thread is provided on the side of the outlet end of the relaxing heat setting machine (18), and a baling machine (20) for baling is provided on the side of the outlet end of the cutting machine (19).

2. A high-performance composite special fiber production device according to claim 1, characterized in that: The material processed in the slice raw material dryer (1) is polyphenylene sulfide (PPS) slice, whose melt index should be 150-250g / min, and whose moisture content after drying is ≤50PPM; the core material is polyethylene terephthalate (PET) slice, whose intrinsic viscosity is 0.67±0.02, and whose moisture content after drying is ≤50PPM.

3. The high-performance composite special fiber production device according to claim 1, characterized in that: The screw used in the screw extruder (2) is a twin screw, which has a vacuuming function to prevent the raw material from being degraded by water and oxygen at high temperature.

4. The high-performance composite special fiber production device according to claim 1, characterized in that: The number of spinneret holes of the core-skin composite spinneret (6) is 1200-3200 mm, the hole diameter is 0.2-0.6 mm, and the aspect ratio is 3-6.

5. The high-performance composite special fiber production device according to claim 1, characterized in that: The heating temperature for spinning in the screw extruder (2) is 280°C to 320°C, the cooling temperature of the core-skin composite spinneret (6) is 16 to 50°C, the winding speed of the first oiling machine (8) is 500 to 1600 m / min, the post-processing stretching speed of the guide wire machine (12) is 80 to 260 m / min, the stretching ratio is 1.5 to 4.5 times, the temperature of the drawing machine (13) is 180 to 280°C, and the process parameters can be adjusted according to the fiber line density.

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