A polyester fine denier industrial filament drawing and winding device

Abstract

This invention discloses a drawing and winding device for fine denier polyester industrial filaments, relating to the field of polyester filament production technology, and solving the technical problem of limited spun varieties in production equipment. The drawing and winding device includes an oiling mechanism, a pre-networker, a first pair of low-temperature hot rollers, a second pair of medium-temperature drawing hot rollers, a third pair of high-temperature drawing hot rollers, a fourth pair of high-temperature drawing hot rollers, a fifth pair of drawing and setting hot rollers, a guide plate assembly, a final networker, and a winding head, arranged sequentially according to the production process. The guide plate assembly includes a first guide plate, a second guide plate, and a third guide plate, which are used to guide and convey the filaments from the third pair of high-temperature drawing hot rollers, the fourth pair of high-temperature drawing hot rollers, and the fifth pair of drawing and setting hot rollers to the corresponding final networker and winding head, respectively. This device produces medium-strength fine denier polyester industrial filaments, high-strength fine denier polyester industrial filaments, and low-shrinkage high-strength fine denier polyester industrial filaments, thereby improving production efficiency, reducing costs, and lowering energy consumption.

Description

Technical Field

[0001] This invention relates to the field of polyester filament production technology, and in particular to a drawing and winding device for polyester fine denier industrial filaments. Background Technology

[0002] In the field of polyester fine denier filament, it is not possible to simultaneously produce high-strength industrial filament, low-shrinkage high-strength industrial filament, and medium-strength industrial filament on a single spinning and drawing winding device. The production equipment for polyester fine denier industrial filament is limited to producing only one type of filament.

[0003] As the production capacity of fine denier polyester continues to expand and the product range continues to broaden, manufacturers need to configure different equipment. If they continue to produce industrial filaments of fine denier polyester using existing processes, the spinning production line will become increasingly large, requiring more land and building area for production plants. Ultimately, this will lead to a continuous increase in the production cost of industrial filaments of fine denier polyester, increased energy consumption, and weakened competitiveness. It also consumes a lot of financial resources, which seriously hinders the rapid development of industrial filaments of fine denier polyester. Summary of the Invention

[0004] This application provides a drawing and winding device for polyester fine denier industrial filaments, which solves the technical problem of limited spinning variety in the production equipment for polyester fine denier industrial filaments in related technologies.

[0005] This application provides a drawing and winding apparatus for fine denier polyester industrial filaments, comprising an oiling mechanism, a pre-networker, a first pair of low-temperature hot rollers, a second pair of medium-temperature drawing hot rollers, a third pair of high-temperature drawing hot rollers, a fourth pair of high-temperature drawing hot rollers, a fifth pair of drawing and shaping hot rollers, a guide plate assembly, a final networker, and a winding head, arranged sequentially according to the production process. The guide plate assembly includes a first guide plate, a second guide plate, and a third guide plate. The first guide plate processes the filament bundle output after winding from the third pair of high-temperature drawing hot rollers for producing medium-strength fine denier polyester industrial filaments. The second guide plate processes the filament bundle output after winding from the fourth pair of high-temperature drawing hot rollers for producing high-strength fine denier polyester industrial filaments. The third guide plate processes the filament bundle output after winding from the fifth pair of drawing and shaping hot rollers for producing low-shrinkage, high-strength fine denier polyester industrial filaments. The drawing and winding apparatus is used to simultaneously produce at least two of the following: medium-strength fine denier polyester industrial filaments, high-strength fine denier polyester industrial filaments, and low-shrinkage, high-strength fine denier polyester industrial filaments.

[0006] Optionally, the temperature of the first pair of low-temperature hot rollers is set to 65-90℃ and the spinning speed is 550-1000m / min;

[0007] The temperature of the second pair of medium-temperature drafting hot rollers is set at 130-160℃, the spinning speed is 1375-3500m / min, and the drafting ratio with the first pair of low-temperature hot rollers is 2.5-3.5 times.

[0008] The temperature of the third pair of high-temperature drafting hot rollers is set at 140-220℃, the spinning speed at 1650-4200m / min, and the drafting ratio with the second pair of medium-temperature drafting hot rollers is 1.2-2.1 times.

[0009] The temperature of the fourth pair of high-temperature drafting hot rollers is set to 160-240℃, the spinning speed to 1600-4000m / min, and the drafting ratio with the third pair of high-temperature drafting hot rollers to be 0.92-0.98 times.

[0010] When producing polyester fine denier low shrinkage high strength industrial filament, the temperature of the fifth pair of drawing and setting hot rollers is set to 200-250℃, the spinning speed is 1570-3800m / min, and the draw ratio with the fourth pair of high temperature drawing hot rollers is 0.92-0.98 times.

[0011] Optionally, when producing medium-strength polyester fine denier industrial filaments, the spinning speed of the first guide disc is 1650-4200 m / min;

[0012] When producing high-strength polyester fine denier industrial filaments, the spinning speed of the second guide disc is 1600-4000 m / min;

[0013] When producing polyester fine denier low shrinkage high strength industrial filaments, the spinning speed of the third guide plate is 1570-3800 m / min.

[0014] Alternatively, when using PET chips for production:

[0015] The temperature of the first pair of low-temperature hot rollers is set to 85℃ and the spinning speed is 650m / min;

[0016] The temperature of the second pair of medium-temperature drawing hot rolls is set at 150℃, the speed is 2080m / min, and the drawing ratio is 3.2 times that of the first pair of low-temperature hot rolls;

[0017] The temperature of the third pair of high-temperature drafting hot rollers is set to 210℃, the spinning speed to 3740m / min, and the drafting ratio to the second pair of medium-temperature drafting hot rollers is 1.8 times.

[0018] The temperature of the fourth pair of high-temperature drafting hot rollers is set to 230℃, the spinning speed to 3515m / min, and the drafting ratio to the third pair of high-temperature drafting hot rollers is 0.94 times.

[0019] When producing polyester fine denier low shrinkage high strength industrial filament, the temperature of the fifth pair of drawing and setting hot rollers is set to 240℃, the spinning speed to 3375m / min, and the draw ratio to the fourth pair of high temperature drawing hot rollers is 0.96.

[0020] Alternatively, when using PBT slicing for production:

[0021] The temperature of the first pair of low-temperature hot rollers is set to 80℃ and the spinning speed is 600m / min;

[0022] The temperature of the second pair of medium-temperature drafting hot rollers is set at 145℃, the spinning speed is 1800m / min, and the drafting ratio with the first pair of low-temperature hot rollers is 3.0 times.

[0023] The temperature of the third pair of high-temperature drafting hot rollers is set at 215℃, the spinning speed at 3420m / min, and the drafting ratio with the second pair of medium-temperature drafting hot rollers is 1.9 times.

[0024] The temperature of the fourth pair of high-temperature drafting hot rollers is set to 225℃, the spinning speed to 3300m / min, and the drafting ratio to the third pair of high-temperature drafting hot rollers is 0.96.

[0025] When producing polyester fine denier low shrinkage high strength industrial filament, the temperature of the fifth pair of drawing and setting hot rollers is set to 235℃, the spinning speed to 3232m / min, and the drawing ratio to the fourth pair of high temperature drawing hot rollers is 0.98.

[0026] Alternatively, when using PTT slicing for production:

[0027] The temperature of the first pair of low-temperature hot rollers is set to 75℃ and the spinning speed is 580m / min;

[0028] The temperature of the second pair of medium-temperature drafting hot rollers is set at 140℃, the spinning speed is 1682m / min, and the drafting ratio with the first pair of low-temperature hot rollers is 2.9 times.

[0029] The temperature of the third pair of high-temperature drafting hot rollers is set to 210℃, the spinning speed to 3532m / min, and the drafting ratio to the second pair of medium-temperature drafting hot rollers is 2.1 times.

[0030] The temperature of the fourth pair of high-temperature drafting hot rollers is set to 222℃, the spinning speed to 3426m / min, and the drafting ratio to the third pair of high-temperature drafting hot rollers is 0.97.

[0031] When producing polyester fine denier low shrinkage high strength industrial filament, the temperature of the fifth pair of drawing and setting hot rollers is set to 232℃, the spinning speed to 3358m / min, and the draw ratio to the fourth pair of high temperature drawing hot rollers is 0.98.

[0032] Optionally, the drawing and winding device also includes, along the filament path:

[0033] The first guide wheel and the second guide wheel are respectively located on the front and rear sides of the pre-networker;

[0034] The first wire guide is positioned before the oiling mechanism;

[0035] The second wire guide is disposed between the second wire guide wheel and the first pair of low-temperature heated rollers;

[0036] The third guide is located between the first pair of low-temperature hot rollers and the second pair of medium-temperature drawing hot rollers.

[0037] Optionally, in the height direction, the fourth pair of high-temperature drawing hot rollers is offset from the middle area between the third pair of high-temperature drawing hot rollers and the fifth pair of drawing and shaping hot rollers, and the first guide plate, the second guide plate, and the fourth pair of high-temperature drawing hot rollers are within the same height range; the drawing and winding device also includes the following on the yarn path:

[0038] The fourth guide is located between the third pair of high-temperature drawing hot rollers and the fourth pair of high-temperature drawing hot rollers;

[0039] The fifth guide is located between the third pair of high-temperature drawing rollers and the first guide plate;

[0040] The sixth guide is located between the fourth pair of high-temperature drawing rollers and the second guide plate.

[0041] Optionally, the drafting and winding device includes two oiling mechanisms and two pre-networkers that cooperate with the two oiling mechanisms respectively. The two oiling mechanisms respectively receive two rows of filament bundles output from the spinning device. After passing through the pre-networkers, the two rows of filament bundles are conveyed to the first pair of low-temperature hot rollers in a manner that they are merged into one row.

[0042] Optionally, the oiling mechanism applies oil to both sides of the filament bundle;

[0043] When using PET chips for production, the oil concentration of the oiling mechanism is 12%, the oil roller speed is 10-30 r / min, and the oil content of the oil is 0.8%.

[0044] When using PBT chips for production, the oil concentration of the oiling mechanism is 10%, the oil roller speed is 10-30 r / min, and the oil content of the oil is 0.7%.

[0045] When using PTT chips for production, the oil concentration of the oiling mechanism is 13%, the oil roller speed is 10-30 r / min, and the oil content of the oil is 0.9%.

[0046] The beneficial effects of this application are as follows: It provides a drawing and winding device, comprising an oiling mechanism, a pre-winding device, a first pair of low-temperature hot rollers, a second pair of medium-temperature drawing hot rollers, a third pair of high-temperature drawing hot rollers, a fourth pair of high-temperature drawing hot rollers, a fifth pair of drawing and shaping hot rollers, a guide plate assembly, a final winding device, and a winding head, arranged sequentially according to the production process. The guide plate assembly, the final winding device, and the winding head are differentiated. The guide plate assembly includes a first guide plate, a second guide plate, and a third guide plate, which are respectively used to draw oil from the third pair of high-temperature drawing hot rollers, the fourth pair of high-temperature drawing hot rollers, and the fifth pair of drawing and shaping hot rollers. The hot rollers and the fifth pair of drawing and shaping hot rollers guide and convey the filaments to the corresponding final winding device and winding head, respectively for producing polyester fine denier medium strength industrial filament, polyester fine denier high strength industrial filament, and polyester fine denier low shrinkage high strength industrial filament. In actual production, this device can simultaneously produce at least two of the following: polyester fine denier medium strength industrial filament, polyester fine denier high strength industrial filament, and polyester fine denier low shrinkage high strength industrial filament. It has the advantages of improving production efficiency, reducing costs, and reducing energy consumption, and meets the market's demand for differentiation, high-end products, and personalization. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention.

[0048] Figure 1 This is a schematic diagram of a polyester fine denier industrial filament drawing and winding device provided in this application. Detailed Implementation

[0049] This application provides a drawing and winding device for polyester fine denier industrial filaments, which solves the technical problem of limited spinning variety in related technologies' production equipment for polyester fine denier industrial filaments.

[0050] The technical solution in this application is to solve the above-mentioned technical problems, and the general idea is as follows:

[0051] A drawing and winding apparatus for fine denier polyester industrial filaments includes an oiling mechanism, a pre-networking device, a first pair of low-temperature hot rollers, a second pair of medium-temperature drawing hot rollers, a third pair of high-temperature drawing hot rollers, a fourth pair of high-temperature drawing hot rollers, a fifth pair of drawing and shaping hot rollers, a guide plate assembly, a final networking device, and a winding head, arranged sequentially according to the production process. The guide plate assembly includes a first guide plate, a second guide plate, and a third guide plate. The first guide plate processes the filament bundle output after winding from the third pair of high-temperature drawing hot rollers for producing medium-strength fine denier polyester industrial filaments. The second guide plate processes the filament bundle output after winding from the fourth pair of high-temperature drawing hot rollers for producing high-strength fine denier polyester industrial filaments. The third guide plate processes the filament bundle output after winding from the fifth pair of drawing and shaping hot rollers for producing low-shrinkage, high-strength fine denier polyester industrial filaments. The drawing and winding apparatus is used to simultaneously produce at least two of the following: medium-strength fine denier polyester industrial filaments, high-strength fine denier polyester industrial filaments, and low-shrinkage, high-strength fine denier polyester industrial filaments.

[0052] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0053] Example 1

[0054] This embodiment provides a polyester fine denier industrial filament drawing and winding device. Please refer to [reference needed]. Figure 1 The system includes, in sequence according to the production process, an oiling mechanism 10, a pre-networker 14, a first pair of low-temperature hot rollers 16, a second pair of medium-temperature drawing hot rollers 17, a third pair of high-temperature drawing hot rollers 18, a fourth pair of high-temperature drawing hot rollers 19, a fifth pair of drawing and shaping hot rollers 20, a guide plate assembly, a final networker 22, and a winding head 23. The guide plate assembly includes a first guide plate 21-1A, a second guide plate 21-1B, and a third guide plate 21-2. The final networker 22 and the winding head 23 are also configured in three sets, as shown below. Figure 1 As shown, each set of final networkers 22 and winding heads 23 are respectively positioned directly below their respective guide discs so that this path of the filament bundle is vertical.

[0055] The filament bundle enters the drawing and winding device in parallel from the spinning device 100, and passes sequentially through the oiling mechanism 10, the pre-networker 14, the first pair of low-temperature hot rollers 16 and the second pair of medium-temperature drawing hot rollers 17. After being wound several times on the second pair of medium-temperature drawing hot rollers 17, it is conveyed to the third pair of high-temperature drawing hot rollers 18. After being wound several times on the third pair of high-temperature drawing hot rollers 18, the entire filament bundle can be conveyed to the fourth pair of high-temperature drawing hot rollers 19, or part of the filament bundle can be conveyed to the fourth pair of high-temperature drawing hot rollers 19, and part of the filament bundle can be directly conveyed to the first guide plate 21-1A, and further conveyed to the final networker 22 and the winding head 23 directly below the first guide plate 21-1A, for the production of polyester fine denier medium-strength industrial filament.

[0056] After the filament bundle is conveyed to the fourth pair of high-temperature drawing hot rollers 19 and wound several times, it can be selected that all the filament bundle is conveyed to the fifth pair of drawing and shaping hot rollers 20, or a portion of the filament bundle is conveyed to the fifth pair of drawing and shaping hot rollers 20 and a portion of the filament bundle is conveyed to the second guide plate 21-1B, or all the filament bundle is conveyed to the second guide plate 21-1B and further conveyed to the final network device 22 and the winding head 23 directly below the second guide plate 21-1B for the production of polyester fine denier high-strength industrial filaments;

[0057] After the filament bundle is conveyed to the fifth pair of drawing and shaping hot rollers 20 and wound several times, it is conveyed to the third guide plate 21-2, and further conveyed to the final network device 22 and the winding head 23 directly below the third guide plate 21-2 for the production of polyester fine denier low shrinkage high strength industrial filament.

[0058] In summary, the drawing and winding apparatus of this embodiment is used to simultaneously produce at least two of the following: fine denier medium-strength industrial filaments, fine denier high-strength industrial filaments, and fine denier low-shrinkage high-strength industrial filaments. This solves the technical problem of limited product variety in related technologies for the production equipment of fine denier industrial filaments. Consequently, it simplifies the types and scale of equipment required by manufacturers, specifically simplifying the spinning production line and reducing the pressure on production plant land and building area requirements. Overall, it lowers the production cost of fine denier industrial filament fibers, reduces energy consumption, increases enterprise competitiveness, and promotes the rapid development of fine denier industrial filaments.

[0059] The drawing and winding device is equipped with a guide and guide rollers along the yarn path. Please refer to... Figure 1 In some possible implementations, the drawing and winding device further includes:

[0060] The first guide wheel 13-1 and the second guide wheel 13-2 are located on the filament path. The first guide wheel 13-1 and the second guide wheel 13-2 are respectively located on the front and rear sides of the pre-networker 14. The filament passes through the first guide wheel 13-1 and then enters the pre-networker 14. The first guide wheel 13-1 guides the filament and relieves some of the tension. The filament after exiting the pre-networker 14 passes through the second guide wheel 13-2 and enters the subsequent mechanism.

[0061] The first guide 12-1 is located in the filament path and is positioned before the oiling mechanism 10. The filaments coming down from the channel of the spinning device 100 pass through the first guide 12-1 and then enter the oiling mechanism 10.

[0062] The second guide 12-2 is located on the filament path. The second guide 12-2 is positioned between the second guide wheel 13-2 and the first pair of low-temperature hot rollers 16, so that the filament is smoothly conveyed to the first pair of low-temperature hot rollers 16.

[0063] A third guide 12-3 is placed on the filament path between the first pair of low-temperature hot rollers 16 and the second pair of medium-temperature drawing hot rollers 17, so that the filament can be smoothly conveyed to the second pair of medium-temperature drawing hot rollers 17.

[0064] Please refer to Figure 1 The drafting and winding device is also equipped with other yarn guides, the specific settings of which are based on the preset path of the yarn bundle. This solution involves three guide discs and multiple pairs of rollers, so the positions of the rollers and guide discs need to be considered.

[0065] This solution provides one feasible implementation plan; please refer to it. Figure 1 In the height direction, the fourth pair of high-temperature drawing hot rollers 19 are offset from the middle area between the third pair of high-temperature drawing hot rollers 18 and the fifth pair of drawing and shaping hot rollers 20. The first guide plate 21-1A, the second guide plate 21-1B, and the fourth pair of high-temperature drawing hot rollers 19 are at the same height. Therefore, the filament exiting from the third pair of high-temperature drawing hot rollers 18 has two non-interfering paths, and the filament exiting from the fourth pair of high-temperature drawing hot rollers 19 also has two non-interfering paths, without interfering with the filament exiting path of the fifth pair of drawing and shaping hot rollers 20. Furthermore, the overall height of the device is relatively small, which helps to simplify the overall size and specifications of the drawing and winding device.

[0066] Please refer to Figure 1 The drawing and winding device also includes:

[0067] The fourth guide 12-4 is located on the filament path between the third pair of high-temperature drawing hot rollers 18 and the fourth pair of high-temperature drawing hot rollers 19, so that the filament can be smoothly conveyed to the fourth pair of high-temperature drawing hot rollers 19.

[0068] The fifth guide 12-5 is located on the filament path and is positioned between the third pair of high-temperature drawing rollers 18 and the first guide plate 21-1A to ensure that the filament is smoothly conveyed to the first guide plate 21-1A.

[0069] The sixth guide 12-6 is located on the filament path and is positioned between the fourth pair of high-temperature drawing rollers 19 and the second guide plate 21-1B to ensure that the filament is smoothly conveyed to the second guide plate 21-1B.

[0070] The seventh guide wire 12-7 is located near the wire exit position of each guide plate in the wire bundle path so that the wire bundle can be smoothly transmitted to its corresponding final network device 22.

[0071] Please refer to Figure 1 When the filament is transferred from the second pair of medium-temperature drawing hot rollers 17 to the third pair of high-temperature drawing hot rollers 18, the filament is straight upward, so no additional filament guide is provided here.

[0072] Please refer to Figure 1 When the filament bundle moves from the fifth pair of drawing and shaping hot rollers 20 to the third guide plate 21-2, it is in a horizontal direction, and no additional filament guide is provided at this point.

[0073] Alternatively, please refer to Figure 1 The drafting and winding device includes two oiling mechanisms 10 and two pre-networkers 14 that cooperate with the two oiling mechanisms 10 respectively. The two oiling mechanisms 10 respectively receive two rows of filament bundles output from the spinning device. After passing through the pre-networkers 14, the two rows of filament bundles are conveyed to the first pair of low-temperature hot rollers 16 in a manner that they are merged into one row. For details, please refer to Figure 1 The two second guide wheels 13-2, which correspond to the two rows of filament bundles, are close to each other and are spaced apart in height. They are just next to each other in the horizontal direction, so that the two rows of filament bundles can be merged into one row of filament bundles after passing through the two second guide wheels 13-2, and the row of filament bundles is straight and downward.

[0074] The above specifies that the two oiling mechanisms 10 respectively receive two rows of filament bundles output from the spinning device. The purpose is to ensure that the two rows of filament bundles output from the spinning device may be made of the same material or different materials. Generally, ordinary chips are used to spin medium-strength polyester fine denier industrial filaments, while high-viscosity chips are required to spin high-strength polyester fine denier industrial filaments and low-shrinkage high-strength polyester fine denier industrial filaments. There are significant differences between ordinary chips and high-viscosity chips.

[0075] In the process of producing high-strength and / or medium-strength polyester fine denier industrial filaments, further settings are involved for each pair of rollers. Specifically, the temperature of the first pair of low-temperature hot rollers 16 is set to 65-90℃, and the spinning speed is 550-1000 m / min; the temperature of the second pair of medium-temperature drawing hot rollers 17 is set to 130-160℃, and the spinning speed is 1375-3500 m / min, with a draw ratio of 2.5-3.5 times that of the first pair of low-temperature hot rollers 16; the temperature of the third pair of high-temperature drawing hot rollers 18 is set to 140-220℃, and the spinning speed is 1650-4200 m / min. The drafting ratio of the second pair of medium-temperature drafting hot rollers 17 is 1.2-2.1 times; the temperature of the fourth pair of high-temperature drafting hot rollers 19 is set at 160-240℃, the spinning speed is 1600-4000m / min, and the drafting ratio of the third pair of high-temperature drafting hot rollers 18 is 0.92-0.98 times; when producing polyester fine denier low-shrinkage high-strength industrial filaments, the temperature of the fifth pair of drafting and setting hot rollers 20 is set at 200-250℃, the spinning speed is 1570-3800m / min, and the drafting ratio of the fourth pair of high-temperature drafting hot rollers 19 is 0.92-0.98 times.

[0076] In the process of producing polyester fine denier high-strength and / or medium-strength industrial filaments, the spinning speed of each guide disc is further limited. The speed of the winding head 23 is less than the speed of the corresponding guide disc. Specifically, when producing polyester fine denier medium-strength industrial filaments, the spinning speed of the first guide disc 21-1A is 1650-4200 m / min; when producing polyester fine denier high-strength industrial filaments, the spinning speed of the second guide disc 21-1B is 1600-4000 m / min; and when producing polyester fine denier low-shrinkage high-strength industrial filaments, the spinning speed of the third guide disc 21-2 is 1570-3800 m / min.

[0077] The polyester fine denier industrial filament produced from the spinning device 100 passes parallel to the first guide 12-1 and enters the oiling mechanism 10 for oiling. To avoid damage caused by strong deflection and entanglement, and to avoid different physical properties, it is known that the deflection of the filament must not exceed a defined limit. Parallel spinning is employed, and a mounting panel is provided on the upper part of the frame. The oiling mechanism 10 and the hot roller are arranged parallel to the spinning box of the spinning device 100, and are distributed sequentially on the mounting panel. The oiling mechanism 10 includes primary oiling and secondary oiling, and can also be single-sided or double-sided oiling, respectively. In this embodiment, double-sided oiling is preferred.

[0078] When using PET (polyethylene terephthalate) chips to spin fine denier industrial filaments, the spinning configuration is as follows: 33dtex-111dtex, 24-head configuration; 125dtex-333dtex, 12-head configuration; double oiling configuration, oil concentration 12%, oiling roller speed 10-30r / min, preferably 18-25r / min, further preferably 20r / min, oil content 0.8%.

[0079] When using PBT (polybutylene terephthalate) chips to spin fine denier industrial polyester filaments, the spinning configuration is as follows: 33dtex-111dtex, 24-head configuration; 125dtex-333dtex, 12-head configuration; double oiling configuration, oil concentration 10%, oiling wheel speed 10-30r / min, preferably 18-25r / min, further preferably 18r / min, oil content 0.7%.

[0080] When using PTT (polypropylene terephthalate) chips to spin fine denier industrial polyester filaments, the spinning configuration is as follows: 33dtex-111dtex, 24-head configuration; 125dtex-333dtex, 12-head configuration; double oiling configuration, oil concentration 13%, oiling wheel speed 10-30r / min, preferably 18-25r / min, further preferably 19r / min, oil content 0.9%.

[0081] The above scheme omits the previously commonly installed feed rollers and splitting rollers, transferring the feeding and splitting functions to the first pair of low-temperature heated rollers 16. Based on PET, PBT, and PTT, optionally, in the production of PBT and PTT chips, a pair of feed rollers and splitting rollers can be added between the pre-networker 14 and the first pair of low-temperature heated rollers 16 on the basis of the above device.

[0082] Example 2

[0083] Based on the polyester fine denier industrial filament drawing and winding device of Example 1, the spinning device 100 inputs two rows of filament bundles in parallel to the drawing and winding device, with 12 heads per row of filament bundles as an example. This example specifically describes the production using PET chips.

[0084] PET chips are used to spin polyester fine denier industrial filaments. The filaments are vertically connected from top to bottom, oiled by a movable oiling mechanism 10, and then enter the pre-networker 14 via the first guide roller 13-1, followed by the second guide roller 13-2, and then the second guide device 12-2. The filaments are then conveyed to the first pair of low-temperature heated rollers 16, which are φ250mm x 550mm in size and have ceramic shells with a surface roughness Ra = 2.1-2.5µm. The filaments are stably laid out on the surface of the first pair of low-temperature heated rollers 16 and preheated at a low temperature of 85℃ at a speed of 650m / min. After being wound 5 turns (24 heads) on the first pair of low-temperature heated rollers 16, the filaments are transferred to the second pair of medium-temperature drawing heated rollers 17, which are also φ250mm x 550mm in size and have ceramic shells with a surface roughness Ra = 2.1-2.5µm. The second pair of medium-temperature drawing rollers 17 and the first pair of low-temperature drawing rollers 16 typically have a draw ratio of 3.2, a temperature set at 150℃, and a speed of 2080 m / min. The yarn bundle is wound 5 turns (24 heads) on the second pair of medium-temperature drawing rollers 17 and then conveyed to the third pair of high-temperature drawing rollers 18. The third pair of high-temperature drawing rollers 18 has dimensions of φ250mm x 550mm, and its roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5 μm. The third pair of high-temperature drawing rollers 18 and the second pair of medium-temperature drawing rollers 17 typically have a draw ratio of 1.8, a temperature set at 210℃, and a spinning speed of 3740 m / min. After the filament bundle is wound 5 turns (24 heads) on the third pair of high-temperature drawing rollers 18, it is divided into two bundles, each with 12 heads. One bundle is conveyed to the first guide plate 21-1A, which has dimensions of φ180x300mm and a ceramic surface with a surface roughness Ra=2.1-2.5um. It has no heating function and a spinning speed of 3740m / min. After tension winding is eliminated, it is sent to the final network 22 for knotting. After knotting, the filament bundle is sequentially conveyed to the iBWA series winding device 23 for winding. The 12 heads are completed using one winding device 23 (i.e., winding head) at a spinning speed of 3700m / min. Thus, 12-head polyester PET fine denier medium-strength industrial filaments can be produced.

[0085] Another bundle of yarn (12 heads) is fed to the fourth pair of high-temperature drawing rollers 19. The fourth pair of high-temperature drawing rollers 19 has dimensions of φ250mm x 550mm, and its roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5um. The draft ratio of the fourth pair of high-temperature drawing rollers 19 and the third pair of high-temperature drawing rollers 18 is generally 0.94 times, the temperature is set at 230℃, and the spinning speed is 3515m / min. The filament bundle is wound 9 turns (12 heads) on the fourth pair of high-temperature drawing rollers 19 and then split again. One filament bundle (6 heads) is conveyed to the second guide plate 21-1B. The second guide plate 21-1B has dimensions of φ180x300mm, a ceramic surface with a surface roughness Ra=2.1-2.5um, no heating function, and a spinning speed of 3515m / min. After tension is eliminated and the winding is completed, it is sent to the final network 22 for knotting. After knotting, the filament bundle is sequentially conveyed to the iBWA series winding device 23 for winding. The 6 heads are completed using one winding device 23, with a spinning speed of 3500m / min. Thus, 6-head polyester PET fine denier high-strength industrial filaments can be produced.

[0086] Another strand (6 heads) is wound 9 turns (6 heads) on the fourth pair of high-temperature drafting hot rollers 19 and then conveyed to the fifth pair of drafting and setting hot rollers 20. The fifth pair of drafting and setting hot rollers 20 has dimensions of φ250mm x 550mm, and its roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5um. The draft ratio of the fifth pair of drafting and setting hot rollers 20 and the fourth pair of high-temperature drafting hot rollers 19 is generally 0.96, the temperature is set at 240℃, and the spinning speed is 3375m / min. After being wound 9 turns (6 heads) on the fifth pair of drawing and setting hot rollers 20, the filament bundle is conveyed to the third guide plate 21-2. The third guide plate 21-2 has dimensions of φ180x300mm, and its roller shell surface is ceramic with a surface roughness Ra=2.1-2.5um. It has no heating function and a spinning speed of 3375m / min. After tension is eliminated and the winding is completed, it is sent to the final network 22 for knotting. After knotting, the filament bundle is sequentially conveyed to the iBWA series winding device 23 to complete the winding. The 6 heads are completed using one winding device 23, with a spinning speed of 3340m / min. Thus, 6-head polyester PET fine denier low shrinkage high strength industrial filament can be produced.

[0087] Alternatively, another bundle of yarn (12 heads) can be fed to the fourth pair of high-temperature drawing rollers 19, whose roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5 μm. The draft ratio of the fourth pair of high-temperature drawing rollers 19 and the third pair of high-temperature drawing rollers 18 is generally 0.94, the temperature is set at 230℃, and the spinning speed is 3515 m / min. The yarn bundle is wound 9 turns (12 heads) on the fourth pair of high-temperature drawing rollers 19 and then fed to the second guide plate 21-1B, whose roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5 μm, has no heating function, and a spinning speed of 3515 m / min. After tension winding is eliminated, it is sent to the final network 22 for knotting. After knotting, the yarn bundle is sequentially fed to the iBWA series winding device 23 for winding. The 12 heads are completed using one winding device 23, with a spinning speed of 3500 m / min. Thus, 12-head polyester PET fine denier high-strength industrial filaments can be produced.

[0088] The filament bundle is wound on the third pair of high-temperature drawing rollers 18 and then conveyed to the fourth pair of high-temperature drawing rollers 19. After being wound on the fourth pair of high-temperature drawing rollers 19, the filament bundle (12 heads) is conveyed to the fifth pair of drawing and setting rollers 20. The roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5 μm. The draw ratio of the fifth pair of drawing and setting rollers 20 and the fourth pair of high-temperature drawing rollers 19 is generally 0.96, the temperature is set at 240℃, and the spinning speed is 3375 m / min. After being wound on the fifth pair of drawing and setting rollers 20, the filament bundle is conveyed to the third guide plate 21-2. This guide plate has no heating function and a spinning speed of 3375 m / min. After being wound on the third guide plate 21-2, the filament bundle is conveyed to the final network 22 for knotting. After knotting, the filament bundle is sequentially conveyed to the winding device 23 to complete the winding process at a spinning speed of 3340 m / min. Therefore, it is possible to produce 12-head polyester PET differentiated fine denier low shrinkage high strength industrial filaments.

[0089] Example 3

[0090] Based on the polyester fine denier industrial filament drawing and winding device of Example 1, the spinning device 100 inputs two rows of filament bundles in parallel to the drawing and winding device. Taking 12 heads per row of filament bundles as an example, this example specifically describes the production using PBT chips.

[0091] PBT chips are used to spin fine denier industrial polyester filaments. The filament bundles are vertically connected from top to bottom, oiled by a movable, upward-facing oiling mechanism 10, and then enter the pre-networker 14 via the first guide roller 13-1, followed by the second guide roller 13-2, and then the second guide device 12-2. The filament bundles are then conveyed to the first pair of low-temperature heated rollers 16, which are φ250mm x 550mm in size and have ceramic shells with a surface roughness Ra = 2.1-2.5µm. The filament bundles are stably spread out on the surface of the first pair of low-temperature heated rollers 16 and preheated at a low temperature of 80℃ at a speed of 600m / min. After being wound 5 turns (24 heads) on the first pair of low-temperature heated rollers 16, the filament bundles are conveyed to the second pair of medium-temperature drawing heated rollers 17, which are also φ250mm x 550mm in size and have ceramic shells with a surface roughness Ra = 2.1-2.5µm. The second pair of medium-temperature drawing rollers 17 and the first pair of low-temperature drawing rollers 16 typically have a draw ratio of 3.0, a temperature set at 145℃, and a speed of 1800m / min. The yarn bundle is wound 5 turns (24 heads) on the second pair of medium-temperature drawing rollers 17 and then transferred to the third pair of high-temperature drawing rollers 18. The third pair of high-temperature drawing rollers 18 has dimensions of φ250mm x 550mm, and its roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5um. The third pair of high-temperature drawing rollers 18 and the second pair of medium-temperature drawing rollers 17 typically have a draw ratio of 1.9, a temperature set at 215℃, and a spinning speed of 3420m / min. After the filament bundle is wound 5 turns (24 heads) on the third pair of high-temperature drawing rollers 18, it is divided into two bundles, each with 12 heads. One bundle is conveyed to the first guide plate 21-1A, which has dimensions of φ180x300mm and a ceramic surface with a surface roughness Ra=2.1-2.5um. It has no heating function and a spinning speed of 3420m / min. After tension winding is eliminated, it is sent to the final network 22 for knotting. After knotting, the filament bundle is sequentially conveyed to the iBWA series winding device 23 for winding. The 12 heads are completed using one winding device 23, with a spinning speed of 3400m / min. Thus, 12-head polyester PBT fine denier medium strength industrial filament can be produced.

[0092] Another bundle of yarn (12 heads) is fed to the fourth pair of high-temperature drawing rollers 19. The fourth pair of high-temperature drawing rollers 19 has dimensions of φ250mm x 550mm, and its roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5um. The draft ratio of the fourth pair of high-temperature drawing rollers 19 and the third pair of high-temperature drawing rollers 18 is generally 0.96, the temperature is set at 225℃, and the spinning speed is 3300m / min. The filament bundle is wound 9 turns (12 heads) on the fourth pair of high-temperature drawing rollers 19 and then split again. One filament bundle (6 heads) is conveyed to the second guide plate 21-1B. The second guide plate 21-1B has dimensions of φ180x300mm, and its roller shell surface is ceramic with a surface roughness Ra=2.1-2.5um. It has no heating function and a spinning speed of 3300m / min. After tension is eliminated and the winding is completed, it is sent to the final network 22 for knotting. After knotting, the filament bundle is sequentially conveyed to the iBWA series winding device 23 to complete the winding. The 6 heads are completed using one winding device 23, with a spinning speed of 3280m / min. Thus, 6-head polyester PBT fine denier high-strength industrial filaments can be produced.

[0093] Another 6-head filament bundle is wound 9 turns (6 heads) on the fourth pair of high-temperature drafting hot rollers 19 and then transferred to the fifth pair of drafting and setting hot rollers 20. The fifth pair of drafting and setting hot rollers 20 has dimensions of φ250mm x 550mm, and its roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5um. The draft ratio of the fifth pair of drafting and setting hot rollers 20 and the fourth pair of high-temperature drafting hot rollers 19 is generally 0.98, the temperature is set at 235℃, and the spinning speed is 3232m / min. After being wound 9 turns (6 heads) on the fifth pair of drafting and setting hot rollers 20, the filament bundle is conveyed to the third guide plate 21-2. The third guide plate 21-2 has dimensions of φ180x300mm, and its roller shell surface is ceramic with a surface roughness Ra=2.1-2.5um. It has no heating function and a spinning speed of 3232m / min. After tension winding is eliminated, it is sent to the final network 22 for knotting. After knotting, the filament bundle is sequentially conveyed to the iBWA series winding device 23 to complete the winding. The 6 heads are completed using one winding device 23, with a spinning speed of 3215m / min. Thus, 6-head polyester PBT fine denier low shrinkage high strength industrial filament can be produced.

[0094] Alternatively, a separate bundle of filaments (12 heads) can be fed to the fourth pair of high-temperature drawing rollers 19, whose roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5 μm. The draft ratio of the fourth pair of high-temperature drawing rollers 19 and the third pair of high-temperature drawing rollers 18 is generally 0.96, the temperature is set at 225℃, and the spinning speed is 3300 m / min. The filament bundle is wound 9 turns (12 heads) on the fourth pair of high-temperature drawing rollers 19 and then fed to the second guide plate 21-1B, whose roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5 μm, has no heating function, and a spinning speed of 3300 m / min. After tension winding is eliminated, it is sent to the final network 22 for knotting. After knotting, the filament bundle is sequentially fed to the iBWA series winding device 23 for winding. The 12 heads are completed using one winding device 23, with a spinning speed of 3280 m / min. Thus, 12-head polyester PBT fine denier high-strength industrial filaments can be produced.

[0095] Alternatively, the filament bundle is wound on the third pair of high-temperature drawing rollers 18 and then conveyed to the fourth pair of high-temperature drawing rollers 19. The filament bundle (12 heads) is then wound on the fourth pair of high-temperature drawing rollers 19 and then conveyed to the fifth pair of drawing and setting rollers 20. The roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5 μm. The draw ratio of the fifth pair of drawing and setting rollers 20 and the fourth pair of high-temperature drawing rollers 19 is generally 0.98, the temperature is set at 235℃, and the spinning speed is 3232 m / min. After being wound on the fifth pair of drawing and setting rollers 20, the filament bundle is conveyed to the third guide plate 21-2 (without heating function) at a spinning speed of 3232 m / min. After being wound on the third guide plate 21-2, the filament bundle is conveyed to the final network 22 for knotting. After knotting, the filament bundle is sequentially conveyed to the winding device 23 for winding at a spinning speed of 3215 m / min. Therefore, it is possible to produce 12-head polyester PBT differentiated fine denier low shrinkage high strength industrial filaments.

[0096] Example 4

[0097] Based on the polyester fine denier industrial filament drawing and winding device of Example 1, the spinning device 100 inputs two rows of filament bundles in parallel to the drawing and winding device. Taking 12 heads per row of filament bundles as an example, this example specifically describes the production using PTT chips.

[0098] PTT chips are used to spin fine denier industrial polyester filaments. The filament bundles are vertically connected from top to bottom, oiled by a movable, upward-facing oiling mechanism 10, and then enter the pre-networker 14 via the first guide roller 13-1, followed by the second guide roller 13-2, and then the second guide device 12-2. The filament bundles are then conveyed to the first pair of low-temperature heated rollers 16, which are φ250mm x 550mm in size and have ceramic shells with a surface roughness Ra = 2.1-2.5µm. The filament bundles are stably spread out on the surface of the first pair of low-temperature heated rollers 16 and preheated at a low temperature of 75℃ at a speed of 580m / min. After being wound 5 turns (24 heads) on the first pair of low-temperature heated rollers 16, the filament bundles are conveyed to the second pair of medium-temperature drawing heated rollers 17, which are also φ250mm x 550mm in size and have ceramic shells with a surface roughness Ra = 2.1-2.5µm. The second pair of medium-temperature drawing rollers 17 and the first pair of low-temperature drawing rollers 16 typically have a draw ratio of 2.9, a temperature set at 140℃, and a speed of 1682 m / min. The yarn bundle is wound 5 turns (24 heads) on the second pair of medium-temperature drawing rollers 17 and then transferred to the third pair of high-temperature drawing rollers 18. The third pair of high-temperature drawing rollers 18 has dimensions of φ250mm x 550mm, and its roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5 μm. The third pair of high-temperature drawing rollers 18 and the second pair of medium-temperature drawing rollers 17 typically have a draw ratio of 2.1, a temperature set at 210℃, and a spinning speed of 3532 m / min. After the filament bundle is wound 5 turns (24 heads) on the third pair of high-temperature drawing rollers 18, it is divided into two bundles, each with 12 heads. One bundle is conveyed to the first guide plate 21-1A, which has dimensions of φ180x300mm and a ceramic surface with a surface roughness Ra=2.1-2.5um. It has no heating function and a spinning speed of 3532m / min. After tension winding is eliminated, it is sent to the final network 22 for knotting. After knotting, the filament bundle is sequentially conveyed to the iBWA series winding device 23 for winding. The 12 heads are completed using one winding device 23, with a spinning speed of 3510m / min. Thus, 12-head polyester PTT fine denier medium strength industrial filament can be produced.

[0099] Another bundle of yarn (12 heads) is fed to the fourth pair of high-temperature drawing rollers 19. The fourth pair of high-temperature drawing rollers 19 has dimensions of φ250mm x 550mm, and its roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5um. The draft ratio of the fourth pair of high-temperature drawing rollers 19 and the third pair of high-temperature drawing rollers 18 is generally 0.97, the temperature is set at 222℃, and the spinning speed is 3426m / min. The filament bundle is wound 9 times (12 heads) on the fourth pair of high-temperature drawing rollers 19 and then split again. One filament bundle (6 heads) is conveyed to the second guide plate 21-1B. The second guide plate 21-1B has dimensions of φ180x300mm, and its roller shell surface is ceramic with a surface roughness Ra=2.1-2.5um. It has no heating function and a spinning speed of 3426m / min. After tension winding is eliminated, it is sent to the final network 22 for knotting. After knotting, the filament bundle is sequentially conveyed to the iBWA series winding device 23 to complete the winding. The 6 heads are completed using one winding device 23, with a spinning speed of 3400m / min. Thus, 6-head polyester PTT fine denier high-strength industrial filament can be produced.

[0100] Another 6-head filament bundle is wound 9 turns (6 heads) on the fourth pair of high-temperature drafting hot rollers 19 and then transferred to the fifth pair of drafting and setting hot rollers 20. The fifth pair of drafting and setting hot rollers 20 has dimensions of φ250mm x 550mm, and its roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5um. The draft ratio of the fifth pair of drafting and setting hot rollers 20 and the fourth pair of high-temperature drafting hot rollers 19 is generally 0.98, the temperature is set at 232℃, and the spinning speed is 3358m / min. After the filament bundle is wound 9 turns (6 heads) on the fifth pair of drafting and setting hot rollers 20, it is conveyed to the third guide plate 21-2. The third guide plate 21-2 has dimensions of φ180x300mm, its roller shell surface is ceramic, and its surface roughness Ra=2.1-2.5um. It has no heating function and a spinning speed of 3358m / min. After tension is eliminated and the winding is completed, it is sent to the final network 22 for knotting. After knotting, the filament bundle is sequentially conveyed to the iBWA series winding device 23 to complete the winding. The 6 heads are completed using one winding device 23, with a spinning speed of 3330m / min. Thus, 6-head polyester PTT fine denier low shrinkage high strength industrial filament can be produced.

[0101] Another bundle of filaments (12 heads) is fed to the fourth pair of high-temperature drawing rollers 19, whose roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5 μm. The draft ratio of the fourth pair of high-temperature drawing rollers 19 and the third pair of high-temperature drawing rollers 18 is generally 0.97, the temperature is set at 222℃, and the spinning speed is 3426 m / min. The filament bundle is wound 9 turns (12 heads) on the fourth pair of high-temperature drawing rollers 19 and then fed to the second guide plate 21-1B, whose roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5 μm, has no heating function, and a spinning speed of 3426 m / min. After tension winding is eliminated, it is sent to the final network 22 for knotting. After knotting, the filament bundle is sequentially fed to the iBWA series winding device 23 for winding. The 12 heads are completed using one winding device 23, with a spinning speed of 3400 m / min. Thus, 12-head polyester PTT fine denier high-strength industrial filaments can be produced.

[0102] Alternatively, the filament bundle is wound on the third pair of high-temperature drawing rollers 18 and then conveyed to the fourth pair of high-temperature drawing rollers 19. The filament bundle (12 heads) is then wound on the fourth pair of high-temperature drawing rollers 19 and then conveyed to the fifth pair of drawing and setting rollers 20. The roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5 μm. The draft ratio of the fifth pair of drawing and setting rollers 20 and the fourth pair of high-temperature drawing rollers 19 is generally 0.98, the temperature is set at 232℃, and the spinning speed is 3358 m / min. After being wound 9 turns (12 heads) on the fifth pair of drawing and setting hot rollers 20, the filament bundle is conveyed to the third guide plate 21-2. The roller shell surface is ceramic with a surface roughness Ra = 2.1-2.5 μm. It has no heating function and a spinning speed of 3358 m / min. After tension is relieved during winding, it is sent to the final network 22 for knotting. The knotted filament bundle is then sequentially conveyed to the iBWA series winding device 23 for winding. The 12 heads are completed using one winding device 23, with a spinning speed of 3330 m / min. Thus, 12-head polyester PTT fine denier low-shrinkage high-strength industrial filament can be produced.

[0103] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0104] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A drawing and winding device for polyester fine denier industrial filaments, characterized in that, The drawing and winding device includes an oiling mechanism, a pre-networker, a first pair of low-temperature hot rollers, a second pair of medium-temperature drawing hot rollers, a third pair of high-temperature drawing hot rollers, a fourth pair of high-temperature drawing hot rollers, a fifth pair of drawing and shaping hot rollers, a guide plate assembly, a final networker, and a winding head, arranged sequentially according to the production process. The guide plate assembly includes: The first guide plate processes the filament bundle output from the third pair of high-temperature drawing hot rollers after winding, and is used to produce polyester fine denier medium-strength industrial filament. The second guide plate processes the filament bundle output from the fourth pair of high-temperature drawing hot rollers after winding, and is used to produce polyester fine denier high-strength industrial filament. The third guide plate processes the filament bundle output from the fifth pair of drawing and shaping hot rollers after winding, and is used to produce polyester fine denier low shrinkage high strength industrial filament. The drawing and winding device includes two oiling mechanisms and two pre-networkers that cooperate with the two oiling mechanisms respectively. The two oiling mechanisms respectively receive two rows of filament bundles output from the spinning device. After passing through the pre-networkers, the two rows of filament bundles are conveyed to the first pair of low-temperature hot rollers in a way that they are merged into one row. The drawing and winding device further includes a first guide wheel and a second guide wheel on the filament path. The first guide wheel and the second guide wheel are respectively disposed on the front and rear sides of the pre-networker. The two second guide wheels corresponding to the two rows of filaments are close to each other. The two second guide wheels are spaced apart in height and are just next to each other in the horizontal direction, so that the two rows of filaments can be merged into one row of filaments after passing through the two second guide wheels. In the height direction, the fourth pair of high-temperature drawing hot rollers are offset from the middle area of ​​the third pair of high-temperature drawing hot rollers and the fifth pair of drawing and shaping hot rollers, and the first guide plate, the second guide plate and the fourth pair of high-temperature drawing hot rollers are in the same height range; The spinning device feeds two rows of filament bundles into the drawing and winding device in parallel. Each row of filament bundles has 12 heads. The 24-head filament bundles pass through the first pair of low-temperature hot rollers, the second pair of medium-temperature drawing hot rollers, and the third pair of high-temperature drawing hot rollers before being divided into two filament bundles. One filament bundle with 12 heads is sent to the first guide plate and then to the final networker and winding head to generate 12-head polyester fine denier medium-strength industrial filaments. Another 12-head filament is fed to the fourth pair of high-temperature drawing rollers and then to the second guide plate, before being sent to the final networker and winding head to generate 12-head polyester fine denier high-strength industrial filament; or, another 12-head filament is fed to the fourth pair of high-temperature drawing rollers and the fifth pair of drawing and setting rollers and then to the third guide plate, before being sent to the final networker and winding head to generate 12-head polyester fine denier low-shrinkage high-strength industrial filament; or, another 12-head filament is fed to the fourth pair of high-temperature drawing rollers and then split again, with one 6-head filament fed to the second guide plate and then to the final networker and winding head to generate 6-head polyester fine denier high-strength industrial filament, and another 6-head filament fed to the fifth pair of drawing and setting rollers and then to the third guide plate and then to the final networker and winding head to generate 6-head polyester fine denier low-shrinkage high-strength industrial filament.

2. The drawing and winding apparatus as described in claim 1, characterized in that, The temperature of the first pair of low-temperature hot rollers is set to 65-90℃ and the spinning speed is 550-1000m / min; The temperature of the second pair of medium-temperature drafting hot rollers is set to 130-160℃, the spinning speed is 1375-3500m / min, and the drafting ratio with the first pair of low-temperature hot rollers is 2.5-3.5 times. The temperature of the third pair of high-temperature drafting hot rollers is set to 140-220℃, the spinning speed to 1650-4200m / min, and the drafting ratio with the second pair of medium-temperature drafting hot rollers to be 1.2-2.1 times. The temperature of the fourth pair of high-temperature drafting hot rollers is set to 160-240℃, the spinning speed to 1600-4000m / min, and the drafting ratio with the third pair of high-temperature drafting hot rollers to be 0.92-0.98 times. When producing polyester fine denier low shrinkage high strength industrial filament, the temperature of the fifth pair of drawing and setting hot rollers is set to 200-250℃, the spinning speed to 1570-3800m / min, and the draw ratio to the fourth pair of high temperature drawing hot rollers to be 0.92-0.

98.

3. The drawing and winding apparatus as described in claim 2, characterized in that, When producing high-denier polyester industrial filament, the spinning speed of the first guide disc is 1650-4200 m / min; When producing high-strength polyester fine denier industrial filaments, the spinning speed of the second guide disc is 1600-4000 m / min; When producing polyester fine denier low shrinkage high strength industrial filaments, the spinning speed of the third guide plate is 1570-3800 m / min.

4. The drawing and winding apparatus as described in claim 2 or 3, characterized in that, When using PET chips for production: The temperature of the first pair of low-temperature hot rollers is set to 85℃ and the spinning speed is 650m / min; The temperature of the second pair of medium-temperature drawing hot rollers is set to 150℃, the speed to 2080m / min, and the drawing ratio to the first pair of low-temperature hot rollers is 3.2 times. The temperature of the third pair of high-temperature drafting hot rollers is set to 210℃, the spinning speed to 3740m / min, and the drafting ratio to the second pair of medium-temperature drafting hot rollers is 1.8 times. The temperature of the fourth pair of high-temperature drafting hot rollers is set to 230℃, the spinning speed to 3515m / min, and the drafting ratio to the third pair of high-temperature drafting hot rollers is 0.94 times. When producing polyester fine denier low shrinkage high strength industrial filament, the temperature of the fifth pair of drawing and setting hot rollers is set to 240°C, the spinning speed to 3375 m / min, and the draw ratio to the fourth pair of high temperature drawing hot rollers is 0.

96.

5. The drawing and winding apparatus as described in claim 2 or 3, characterized in that, When using PBT slicing for production: The temperature of the first pair of low-temperature hot rollers is set to 80℃ and the spinning speed is 600m / min; The temperature of the second pair of medium-temperature drafting hot rollers is set to 145℃, the spinning speed is 1800m / min, and the drafting ratio with the first pair of low-temperature hot rollers is 3.0 times. The temperature of the third pair of high-temperature drafting hot rollers is set to 215℃, the spinning speed to 3420m / min, and the drafting ratio to the second pair of medium-temperature drafting hot rollers is 1.9 times. The temperature of the fourth pair of high-temperature drafting hot rollers is set to 225℃, the spinning speed to 3300m / min, and the drafting ratio to the third pair of high-temperature drafting hot rollers is 0.

96. When producing polyester fine denier low shrinkage high strength industrial filament, the temperature of the fifth pair of drawing and setting hot rollers is set to 235°C, the spinning speed to 3232 m / min, and the draw ratio to the fourth pair of high temperature drawing hot rollers is 0.

98.

6. The drawing and winding apparatus as described in claim 2 or 3, characterized in that, When using PTT slicing for production: The temperature of the first pair of low-temperature hot rollers is set to 75°C and the spinning speed is 580m / min; The temperature of the second pair of medium-temperature drafting hot rollers is set to 140℃, the spinning speed is 1682m / min, and the drafting ratio with the first pair of low-temperature hot rollers is 2.9 times. The temperature of the third pair of high-temperature drafting hot rollers is set to 210℃, the spinning speed to 3532m / min, and the drafting ratio to the second pair of medium-temperature drafting hot rollers is 2.1 times. The temperature of the fourth pair of high-temperature drafting hot rollers is set to 222℃, the spinning speed to 3426m / min, and the drafting ratio to the third pair of high-temperature drafting hot rollers is 0.

97. When producing polyester fine denier low shrinkage high strength industrial filament, the temperature of the fifth pair of drawing and setting hot rollers is set to 232°C, the spinning speed to 3358 m / min, and the draw ratio to the fourth pair of high temperature drawing hot rollers is 0.

98.

7. The drawing and winding apparatus as described in claim 1, characterized in that, The drawing and winding device also includes the following along the fiber path: The first wire guide is positioned before the oiling mechanism; The second wire guide is disposed between the second wire guide wheel and the first pair of low-temperature heated rollers; The third guide is disposed between the first pair of low-temperature hot rollers and the second pair of medium-temperature drawing hot rollers.

8. The drawing and winding apparatus as described in claim 7, characterized in that, The drawing and winding device also includes the following along the fiber path: The fourth guide is disposed between the third pair of high-temperature drawing hot rollers and the fourth pair of high-temperature drawing hot rollers; The fifth guide is disposed between the third pair of high-temperature drawing hot rollers and the first guide plate; The sixth guide is disposed between the fourth pair of high-temperature drawing hot rollers and the second guide plate.

9. The drawing and winding apparatus as described in claim 1, characterized in that, The oiling mechanism applies oil to both sides of the filament bundle; When producing PET chips, the oil concentration of the oiling mechanism is 12%, the oil roller speed is 10-30 r / min, and the oil content is 0.8%. When using PBT chips for production, the oil concentration of the oiling mechanism is 10%, the oil roller speed is 10-30 r / min, and the oil content is 0.7%. When using PTT chips for production, the oil concentration of the oiling mechanism is 13%, the oil roller speed is 10-30 r / min, and the oil content of the oil is 0.9%.

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