FDY (fully drawn yarn) efficient cooling and stretching device
By using the cooperation of the insert shaft and guide rod in the high-efficiency cooling and stretching device for FDY yarn, the tension between the heating rollers is adjusted, which solves the tension regulation problem, achieves a tight state for FDY yarn, improves the shaping effect and processing uniformity, and reduces mechanical damage and breakage rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGXING SHINY STAR FIBER CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-05
AI Technical Summary
In traditional FDY yarn high-efficiency cooling and stretching devices, the tension between the two heating rollers cannot be adjusted, which affects the synchronous progress of FDY yarn during production and winding, resulting in poor setting effect.
The guide rod is driven by the insertion shaft to swing, and the pressure roller applies pressure to the FDY filament between the two sets of heating rollers to adjust the tension. Synchronous movement is achieved through the meshing of the worm and worm wheel to ensure that the FDY filament remains taut throughout the processing.
It effectively adjusts the tension of FDY yarn, improves the shaping effect and processing uniformity of FDY yarn, reduces mechanical damage and breakage, and improves overall processing efficiency.
Smart Images
Figure CN224199542U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of FDY filament processing technology, specifically to an efficient cooling and stretching device for FDY filament. Background Technology
[0002] FDY yarn is a type of chemical fiber filament that is fully drawn. It is produced by spinning and drawing in one step, and has the characteristics of high strength, high modulus, and low shrinkage. After the melt or solution is directly spun into yarn, it is shaped in one step by high-speed drawing, which makes the internal structure of the fiber more compact and stable.
[0003] In traditional technology, the spinning and stretching processes are integrated on the same machine. The orientation and shaping of fibers are achieved through high-speed spinning and continuous stretching. Two hot rollers are used to heat and stretch the fibers. The first hot roller is responsible for preheating and initial stretching, while the second hot roller performs high-temperature shaping. However, in use, the tension between the two hot rollers cannot be adjusted, which will affect the final stretching and shaping when the FDY yarn is made and wound up simultaneously.
[0004] Therefore, it is particularly important to improve the existing high-efficiency cooling and stretching devices for FDY yarn, design a new type of high-efficiency cooling and stretching device for FDY yarn to solve the above-mentioned technical defects, and improve the overall practicality of the high-efficiency cooling and stretching device for FDY yarn. Utility Model Content
[0005] The purpose of this invention is to provide an efficient cooling and stretching device for FDY yarn. The device rotates via a shaft, which in turn drives a guide rod to swing. Then, a pressure roller squeezes the FDY yarn between two sets of heating rollers to adjust its tension, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] The FDY yarn high-efficiency cooling and stretching device includes a body, the surface of which is provided with a through groove, a cooling fan is fixedly connected to the inner side wall of the through groove, two sets of heating rollers are rotatably connected to the outside of the body, an insert shaft is rotatably connected between the two sets of heating rollers, a guide rod is fixedly connected to the outside of the insert shaft, and a pressure roller is rotatably connected to the end of the guide rod away from the insert shaft.
[0008] As a preferred embodiment of this utility model, an outer frame is fixedly connected inside the body, a worm gear is rotatably connected to the bottom of the inner side of the outer frame, a worm wheel is meshed with the outside of the worm gear, a synchronizing rod is fixedly connected to the middle of the inside of the worm wheel, and the worm wheel is rotatably connected to the outer frame through the synchronizing rod.
[0009] As a preferred embodiment of this utility model, a mounting plate is fixedly connected to the back of the worm gear, a connecting rod is rotatably connected to the top of the mounting plate, a linkage plate is rotatably connected to the end of the connecting rod away from the mounting plate, and the end of the insert shaft away from the pressure roller is fixedly connected to the linkage plate.
[0010] As a preferred embodiment of this utility model, a placement groove is provided at the bottom of the inner side of the through groove, a bracket is fixedly connected to the bottom of the machine body, a fixing rod is fixedly connected to the top of the bracket, a guide wheel is rotatably connected to the outside of the fixing rod, and an oil wheel is rotatably connected between the through groove and the guide wheel.
[0011] As a preferred embodiment of this utility model, a mounting frame is fixedly connected to the bottom right side of the machine body. The mounting frame has a receiving groove inside, and a fixing frame is symmetrically fixedly connected inside the receiving groove. A sleeve is rotatably connected inside the two sets of fixing frames, and a reciprocating groove is provided on the outside of the sleeve.
[0012] As a preferred embodiment of this utility model, the top ends of the two sets of fixing frames are fixedly connected to limit rods, and a sliding plate is slidably connected to the outside of the limit rods at a position corresponding to the reciprocating groove. A rectangular frame is fixedly connected to the top of the sliding plate, and an auxiliary wheel is rotatably connected to the inside of the rectangular frame.
[0013] As a preferred embodiment of this utility model, the mounting frame is symmetrically fixedly connected to an extension frame, and a take-up roller is rotatably connected between the two sets of extension frames.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In this invention, one set of heating rollers is responsible for preheating and initial stretching, while the other set of heating rollers performs high-temperature shaping. By meshing the worm gear and worm wheel, the mounting plate rotates synchronously with the worm wheel, thereby generating tension on the connecting rod. Finally, the rod swings with the insertion shaft as the force point, and the guide rod rotates synchronously with the insertion shaft, completing an arc swing outside the machine body. This allows the pressure roller to contact the FDY filament between the two sets of heating rollers, applying pressure to the FDY filament and changing its tension, ensuring that it remains taut during processing. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the outer frame structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the outer frame of this utility model;
[0019] Figure 4This is a schematic diagram of the mounting plate and connecting rod structure of this utility model.
[0020] In the diagram: 1. Machine body; 2. Through groove; 3. Refrigeration fan; 4. Heating roller; 5. Insert shaft; 6. Guide rod; 7. Pressure roller; 8. Outer frame; 9. Worm gear; 10. Worm wheel; 11. Synchronizing rod; 12. Mounting plate; 13. Connecting rod; 14. Linkage plate; 15. Bracket; 16. Fixing rod; 17. Guide wheel; 18. Oil wheel; 19. Mounting frame; 20. Fixing bracket; 21. Sleeve; 22. Reciprocating groove; 23. Limiting rod; 24. Slide plate; 25. Rectangular frame; 26. Auxiliary wheel; 27. Extension frame; 28. Take-up roller. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0022] Example: Please refer to Figures 1-4 This utility model provides a technical solution:
[0023] The FDY yarn high-efficiency cooling and stretching device includes a machine body 1. A through groove 2 is opened on the surface of the machine body 1. A cooling fan 3 is fixedly connected to the inner wall of the through groove 2. Two sets of heating rollers 4 are rotatably connected to the outside of the machine body 1. An insert shaft 5 is rotatably connected between the two sets of heating rollers 4. A guide rod 6 is fixedly connected to the outside of the insert shaft 5. A pressure roller 7 is rotatably connected to the end of the guide rod 6 away from the insert shaft 5. By placing the machine body 1 in a designated position, the FDY yarn is spun through the through groove 2. Then, the cooling fan 3 cools the FDY yarn. The FDY yarn is then drawn to the outside of the heating rollers 4. One set of heating rollers 4 is responsible for preheating and initial stretching, while the other set of heating rollers 4 is used for high-temperature shaping. Then, the insert shaft 5 is rotated, and the guide rod 6 rotates synchronously with the insert shaft 5, completing an arc swing outside the machine body 1. Then, the pressure roller 7 comes into contact with the FDY yarn between the two sets of heating rollers 4, applying pressure to the FDY yarn and changing its tension, so that it is always in a taut state during processing.
[0024] Furthermore, in this embodiment, an outer frame 8 is fixedly connected inside the body 1. A worm 9 is rotatably connected to the bottom of the inner side of the outer frame 8. A worm wheel 10 is meshed with the outside of the worm 9. A synchronizing rod 11 is fixedly connected to the middle of the inside of the worm wheel 10. The worm wheel 10 is rotatably connected to the outer frame 8 through the synchronizing rod 11. A mounting plate 12 is fixedly connected to the back of the worm wheel 10. A connecting rod 13 is rotatably connected to the top of the mounting plate 12. A linkage plate 14 is rotatably connected to the end of the connecting rod 13 away from the mounting plate 12. The end of the insert shaft 5 away from the pressure roller 7 is fixedly connected to the linkage plate 14. By connecting one end of the worm 9 to the output end of the motor, the worm 9 rotates and meshes with the worm wheel 10. Then, the worm wheel 10 rotates inside the outer frame 8 through the synchronizing rod 11. Subsequently, the mounting plate 12 rotates synchronously with the worm wheel 10, thereby generating a pulling force on the connecting rod 13. Then, the top of the linkage plate 14 is subjected to a motion force, and finally, the insert shaft 5 is used as the force point to swing.
[0025] Furthermore, in this embodiment, a placement groove is provided at the bottom of the inner side of the through groove 2, a bracket 15 is fixedly connected to the bottom of the machine body 1, a fixing rod 16 is fixedly connected to the top of the bracket 15, a guide wheel 17 is rotatably connected to the outside of the fixing rod 16, and an oil wheel 18 is rotatably connected between the through groove 2 and the guide wheel 17. After the FDY yarn is spun inside the through groove 2, it is wound around the outside of the oil wheel 18 by the PDY yarn. The oil on the surface of the oil wheel 18 can form a lubricating layer on the fiber surface, reducing the friction between the fiber and the guide and heating roller 4, reducing mechanical damage during the stretching process, reducing the generation of fuzz and broken ends, and improving the stretching uniformity of the fiber. Finally, the guide wheel 17 guides it so that it is stretched and shaped in an orderly manner outside the two sets of heating rollers 4.
[0026] Furthermore, in this embodiment, a mounting frame 19 is fixedly connected to the bottom right side of the body 1. The mounting frame 19 has an internal receiving groove. A fixing bracket 20 is symmetrically fixedly connected inside the receiving groove. Sleeves 21 are rotatably connected inside the two sets of fixing brackets 20. Reciprocating grooves 22 are formed on the outside of the sleeves 21. Limiting rods 23 are fixedly connected to the top of the two sets of fixing brackets 20. A sliding plate 24 is slidably connected to the outside of the limiting rod 23 at a position corresponding to the reciprocating groove 22. A rectangular frame 25 is fixedly connected to the top of the sliding plate 24. An auxiliary wheel 26 is internally rotatably connected to the mounting frame 19. An extension frame 27 is symmetrically fixed to the outside of the mounting frame 19. A take-up roller 28 is rotatably connected between the two sets of extension frames 27. By rotating the take-up roller 28 and the sleeve 21 synchronously, the PDY yarn will be wound up outside the take-up roller 28. At the same time, the reciprocating groove 22 rotates cyclically and is limited by the slide plate 24. Then the slide plate 24 slides back and forth outside the limiting rod 23 and assists in unwinding the PDY yarn through the auxiliary wheel 26, so that it is evenly wound around the outside of the take-up roller 28.
[0027] In this embodiment, the specific implementation scenario is as follows: FDY yarn is spun through the through-slot 2, then cooled by the cooling fan 3. PDY yarn is then wound around the outside of the oil roller 18. The oil on the surface of the oil roller 18 forms a lubricating layer on the fiber surface, reducing friction between the fiber and the guide and heating roller 4, minimizing mechanical damage during stretching, reducing fuzz and breakage, and improving fiber stretching uniformity. Finally, the fiber is guided by the guide wheel 17, ensuring it is orderly positioned outside the two sets of heating rollers 4. One set of heating rollers 4 is responsible for preheating and initial stretching, while the other set performs high-temperature setting. The worm 9 rotates by connecting one end of the worm gear 9 to the output end of the motor, meshing with the worm wheel 10. The worm wheel 10 then rotates inside the outer frame 8 via the synchronizing rod 11. The rear mounting plate 12 rotates synchronously with the worm gear 10, which in turn generates tension on the connecting rod 13. Subsequently, the top of the linkage plate 14 is subjected to motion force, and finally swings with the insertion shaft 5 as the force point. Then, the guide rod 6 rotates synchronously with the insertion shaft 5 and completes an arc swing outside the machine body 1. Subsequently, the pressure roller 7 and the two sets of heating rollers 4 come into contact with the FDY yarn, apply pressure to the FDY yarn, change its tension, and keep it in a taut state during processing. By rotating the take-up roller 28 and the sleeve 21 synchronously, the PDY yarn will be wound outside the take-up roller 28. At the same time, the reciprocating groove 22 rotates cyclically and is limited by the slide plate 24. Then, the slide plate 24 slides back and forth outside the limiting rod 23 and assists in unwinding the PDY yarn through the auxiliary wheel 26, so that it is evenly wound around the outside of the take-up roller 28.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency cooling and stretching device for FDY yarn, comprising a body (1), characterized in that: The surface of the body (1) is provided with a through groove (2), and a cooling fan (3) is fixedly connected to the inner wall of the through groove (2). Two sets of heating rollers (4) are rotatably connected to the outside of the body (1), and a shaft (5) is rotatably connected between the two sets of heating rollers (4). A guide rod (6) is fixedly connected to the outside of the shaft (5), and a pressure roller (7) is rotatably connected to the end of the guide rod (6) away from the shaft (5). An outer frame (8) is fixedly connected to the inside of the body (1), and a worm gear (9) is rotatably connected to the bottom end of the inner side of the outer frame (8). A worm gear (10) is externally meshed with the rod (9). A synchronizing rod (11) is fixedly connected to the middle of the inside of the worm gear (10). The worm gear (10) is rotatably connected to the outer frame (8) through the synchronizing rod (11). A mounting plate (12) is fixedly connected to the back of the worm gear (10). A connecting rod (13) is rotatably connected to the top of the mounting plate (12). A linkage plate (14) is rotatably connected to the end of the connecting rod (13) away from the mounting plate (12). The end of the insert shaft (5) away from the pressure roller (7) is fixedly connected to the linkage plate (14).
2. The high-efficiency cooling and stretching device for FDY yarn according to claim 1, characterized in that: The bottom of the inner side of the through groove (2) is provided with a placement groove. The bottom of the body (1) is fixedly connected to a bracket (15). The top of the bracket (15) is fixedly connected to a fixing rod (16). The outside of the fixing rod (16) is rotatably connected to a guide wheel (17). The through groove (2) and the guide wheel (17) are rotatably connected to an oil wheel (18).
3. The high-efficiency cooling and stretching device for FDY yarn according to claim 1, characterized in that: A mounting frame (19) is fixedly connected to the bottom right side of the body (1). The mounting frame (19) has an internal receiving groove. A fixing frame (20) is symmetrically fixedly connected inside the receiving groove. A sleeve (21) is rotatably connected inside the two sets of fixing frames (20). A reciprocating groove (22) is opened on the outside of the sleeve (21).
4. The high-efficiency cooling and stretching device for FDY yarn according to claim 3, characterized in that: The top of the two sets of fixed frames (20) are fixedly connected to a limiting rod (23). A sliding plate (24) is slidably connected to the outside of the limiting rod (23) and at a position corresponding to the reciprocating groove (22). A rectangular frame (25) is fixedly connected to the top of the sliding plate (24). An auxiliary wheel (26) is rotatably connected inside the rectangular frame (25).
5. The high-efficiency cooling and stretching device for FDY yarn according to claim 4, characterized in that: The mounting frame (19) is symmetrically fixed to the outside of an extension frame (27), and a take-up roller (28) is rotatably connected between the two sets of extension frames (27).