Device for drying tows by using hot air

Abstract

The utility model relates to the technical field of tow drying, and discloses a device for drying tows by using hot air, which comprises a base, an air outlet shell is fixedly connected onto the base, an outer shell is fixedly connected onto the air outlet shell, tensioning wheels are rotatably connected onto the inner walls of the left side and the right side of the outer shell, and an air return shell and a partition air duct are fixedly connected onto the inner wall of the outer shell. A heating wire is arranged in the partition air channel and fixedly connected to the inner wall of the shell, a connector is fixedly connected to the heating wire, second ventilation holes are formed in the positions, corresponding to the partition air channel, of the outer walls of the two sides of the air return shell, supporting plates are arranged on the partition air channel at intervals, and first ventilation holes are formed in the supporting plates. According to the utility model, the air duct partition structure is designed, the temperature of each partition is independently controlled, the hot air temperature of each partition can be accurately controlled, and the hot air temperature in each partition can be flexibly adjusted according to the decreasing trend of the water content in the tow drying process.

Description

Technical Field

[0001] This utility model relates to the field of filament drying technology, specifically to a device for drying filaments using hot air. Background Technology

[0002] The production process of yarn tow involves several key steps to ensure its quality and performance. Among them, desalination water cleaning is a crucial step. Desalinated water, which is pure water with most minerals and impurities removed, is used to clean the yarn tow to remove oil, dust, and other impurities that may have adhered to the surface of the yarn tow during production. During desalination water cleaning, the yarn tow comes into full contact with the desalinated water, allowing for effective cleaning of both the micropores inside the yarn tow and its surface. Due to the penetration and adhesion of water, the moisture content of the yarn tow increases significantly during this process. This increased moisture content directly affects subsequent processing, especially drying and setting steps. To control the moisture content of the yarn tow and ensure its stability and quality in subsequent processing, hot air drying becomes an indispensable step. Hot air drying accelerates the evaporation of moisture inside and on the surface of the yarn tow by blowing high-temperature, dry air onto it.

[0003] Existing hot air drying equipment for filaments has the following drawbacks: the hot air is uniformly distributed throughout the device, lacking a multi-stage drying design. In the initial drying stage, the filaments typically contain high moisture content, requiring high-temperature hot air to accelerate evaporation. However, as the drying process continues, the moisture content of the filaments gradually decreases. If high-temperature drying is maintained at this point, it not only wastes energy but may also cause unnecessary damage to the texture and properties of the filaments, such as fiber embrittlement or uneven shrinkage due to over-drying. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a device for drying filament bundles using hot air.

[0005] To achieve the above objectives, the technical solution of this utility model is: a device for drying filament bundles using hot air, comprising a base, an air outlet housing fixedly connected to the base, an outer shell fixedly connected to the air outlet housing, tensioning wheels rotatably connected to the inner walls of the left and right sides of the outer shell, a return air housing and a partitioned air duct fixedly connected to the inner wall of the outer shell, a heating wire disposed in the partitioned air duct and fixedly connected to the inner wall of the outer shell, a connector fixedly connected to the heating wire, second ventilation holes being opened on the outer walls of the return air housing at positions corresponding to the partitioned air duct, support plates being spaced apart on the partitioned air duct, and first ventilation holes being opened on the support plates.

[0006] Furthermore, a variable frequency fan is fixedly connected to the base, and an air guide duct is fixedly connected to the output end of the variable frequency fan. The other end of the air guide duct is connected to an air duct housing, and the air duct housing is fixedly connected to the top of the outer shell.

[0007] Furthermore, the inner wall of the air duct shell is provided with first air guides on the left and right sides, and the first air guides are connected to the partitioned air duct.

[0008] Furthermore, two second air guide ports are provided on the inner wall of the return air housing, and the second air guide ports are connected to the air outlet housing. Air outlets are provided on the outer walls of both sides of the air outlet housing.

[0009] Furthermore, a first side cover is fixedly connected to one outer wall of the air duct housing, and a first handle is fixedly connected to the outer wall of the first side cover.

[0010] Furthermore, a second side cover is fixedly connected to one outer wall of the return air housing, and side doors are hinged to the two outer walls of the second side cover. A second handle is fixedly connected to one outer wall of the side door.

[0011] Furthermore, a partition is vertically fixed to the inner wall of the return air housing, two second air guides are located on both sides of the partition, and a wire bundle passage is opened on the partitioned air duct.

[0012] The beneficial effects of this utility model are as follows: This utility model is designed with a partitioned air duct structure, with each partition having independent temperature control. It can precisely control the hot air temperature of each partition and flexibly adjust the hot air temperature in each partition according to the decreasing trend of the moisture content of the filament during the drying process. In the early stage of drying, when the moisture content of the filament is high, the hot air temperature can be appropriately increased to accelerate the evaporation of moisture. As the drying process progresses and the moisture content of the filament gradually decreases, the hot air temperature can be reduced accordingly to avoid energy waste caused by continuous high-temperature drying and problems such as fiber embrittlement or uneven shrinkage that may result from over-drying. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the overall rear view structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of this utility model;

[0017] Figure 5 yes Figure 4 Enlarged view of section A.

[0018] In the diagram: 1. Base; 2. Outer shell; 3. Air duct shell; 4. First side cover; 5. First handle; 6. Second side cover; 7. Side door; 8. Second handle; 9. Return air shell; 10. Zoned air duct; 11. Tensioning wheel; 12. Variable frequency fan; 13. Air guide duct; 14. First air guide port; 15. First ventilation hole; 16. Heating wire; 17. Connector; 18. Second air guide port; 19. Air outlet shell; 20. Partition; 21. Air outlet; 22. Second ventilation hole; 23. Wire bundle passage. Detailed Implementation

[0019] Example:

[0020] Please see the appendix Figure 1 -Appendix Figure 5A device for drying filament bundles using hot air includes a base 1, an air outlet housing 19 fixedly connected to the base 1, an outer shell 2 fixedly connected to the air outlet housing 19, tensioning wheels 11 rotatably connected to the inner walls of the left and right sides of the outer shell 2, a return air housing 9 and a partitioned air duct 10 fixedly connected to the inner wall of the outer shell 2, a heating wire 16 disposed in the partitioned air duct 10 and fixedly connected to the inner wall of the outer shell 2, and a connector 17 fixedly connected to the heating wire 16; and second passages are provided on the outer walls of the return air housing 9 at positions corresponding to the partitioned air duct 10. A vent 22 is provided, and a support plate is provided at intervals on the partitioned air duct 10. The support plate has a first ventilation hole 15. A variable frequency fan 12 is fixedly connected to the base 1. The output end of the variable frequency fan 12 is fixedly connected to an air guide duct 13. The other end of the air guide duct 13 is connected to an air duct housing 3, and the air duct housing 3 is fixedly connected to the top of the outer shell 2. The variable frequency fan 12 is used to generate airflow and conduct it to the air duct housing 3 through the air guide duct 13. The inner wall of the air duct housing 3 has a first air guide port 14 on the left and right sides, and the first air guide port 14 is connected to the air duct housing 3. Within the partitioned air duct 10, a first air guide 14 is used to divert airflow to the partitioned air ducts 10 on both sides; two second air guides 18 are provided on the inner wall of the return air housing 9, and the second air guides 18 are connected to the outlet air housing 19. Outlets 21 are provided on the outer walls of both sides of the outlet air housing 19. The second air guides 18 and outlets 21 are used for exhaust; a first side cover 4 is fixedly connected to one outer wall of the air duct housing 3, and a first handle 5 is fixedly connected to the outer wall of the first side cover 4. The first side cover 4 can be opened by the first handle 5 to clean the air duct. The outer wall of the return air housing 9 is fixedly connected to a second side cover 6. The outer walls of the two sides of the second side cover 6 are hinged to side doors 7. The outer wall of the side door 7 is fixedly connected to a second handle 8. The side door 7 is used to open the outer shell 2 during the first start-up, so that the filament bundle can pass through the tension wheel 11 and the partitioned air duct 10. The inner wall of the return air housing 9 is vertically fixedly connected to a partition 20. Two second air guide ports 18 are located on both sides of the partition 20. The partitioned air duct 10 is provided with a filament bundle passage port 23. The partition 20 is used to isolate the two partitioned air ducts 10 to prevent cross-flow of air.

[0021] Working principle: When using this invention for drying filaments, firstly, open the side door 7 on the second side cover 6 using the second handle 8. Then, the filaments are sequentially passed around the tension wheel 11 and introduced into the outer shell 2 through the bottom opening. They then pass through the filament passage 23 on the partitioned air duct 10 and finally exit the outer shell 2 from the other end. Connect the drive device, close the side door 7, and the drive device pulls the filaments continuously through the partitioned air duct 10 inside the outer shell 2. At the same time, the variable frequency fan 12 on the base 1 blows air into the air duct housing 3 through the air guide pipe 13. The airflow enters the partitioned air ducts 10 on both sides through the first air guide port 14, either directly or... The hot air from the heating wire 16, which heats the filaments through the first ventilation hole 15, dries the filament bundle. Then, it enters the return air housing 9 through the second ventilation hole 22, enters the outlet air housing 19 through the second air guide 18, and is discharged through the air outlet 21. The heating wires 16 in the partition air ducts 10 of different zones are independently controlled. Starting from the filament bundle drying path, the temperature gradually decreases from 150°C. The first side cover 4 can be opened through the first handle 5 to clean the air duct housing 3. The connector 17 is used to connect the heating wire 16 to the control system. The partition 20 is used to isolate the two partition air ducts 10 to prevent cross-flow of air.

[0022] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

[0023] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

Claims

1. An apparatus for drying filament bundles using hot air, comprising a base (1), characterized in that: An air outlet housing (19) is fixedly connected to the base (1), and an outer shell (2) is fixedly connected to the air outlet housing (19). Tensioning wheels (11) are rotatably connected to the inner walls on the left and right sides of the outer shell (2). A return air housing (9) and a partitioned air duct (10) are fixedly connected to the inner wall of the outer shell (2). A heating wire (16) is provided in the partitioned air duct (10), and the heating wire (16) is fixedly connected to the inner wall of the outer shell (2). A connector (17) is fixedly connected to the heating wire (16). A second ventilation hole (22) is opened on the outer walls on both sides of the return air housing (9) at the position corresponding to the partitioned air duct (10). A support plate is provided at intervals on the partitioned air duct (10), and a first ventilation hole (15) is opened on the support plate.

2. The apparatus for drying filament bundles using hot air according to claim 1, characterized in that: A variable frequency fan (12) is fixedly connected to the base (1). A guide pipe (13) is fixedly connected to the output end of the variable frequency fan (12). The other end of the guide pipe (13) is connected to the air duct housing (3), and the air duct housing (3) is fixedly connected to the top of the outer shell (2).

3. The apparatus for drying filament bundles using hot air according to claim 2, characterized in that: The inner wall of the air duct housing (3) is provided with first air guides (14) on the left and right sides, and the first air guides (14) are connected to the partition air duct (10).

4. The apparatus for drying filament bundles using hot air according to claim 1, characterized in that: The return air housing (9) has two second air guide ports (18) on its inner wall, and the second air guide ports (18) are connected to the air outlet housing (19). Air outlets (21) are provided on the outer walls of both sides of the air outlet housing (19).

5. The apparatus for drying filament bundles using hot air according to claim 3, characterized in that: A first side cover (4) is fixedly connected to one side of the outer wall of the air duct housing (3), and a first handle (5) is fixedly connected to the outer wall of the first side cover (4).

6. The apparatus for drying filament bundles using hot air according to claim 1, characterized in that: A second side cover (6) is fixedly connected to one side outer wall of the return air housing (9), and side doors (7) are hinged to the two sides outer walls of the second side cover (6). A second handle (8) is fixedly connected to the outer wall of the side door (7).

7. The apparatus for drying filament bundles using hot air according to claim 4, characterized in that: A partition (20) is vertically fixed to the inner wall of the return air housing (9), and two second air guides (18) are located on both sides of the partition (20). A wire bundle passage (23) is opened on the partition air duct (10).

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