Cooling device for polypropylene staple fiber production
By designing a cooling device that includes water cooling, air cooling, and auxiliary mechanisms, the problems of uneven cooling and moisture residue in polypropylene staple fiber production were solved, enabling rapid and uniform cooling and drying of the fibers, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI BOTAO SYNTHETIC FIBER CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-17
AI Technical Summary
In the current polypropylene staple fiber production process, improper design of the cooling device can lead to uneven fiber cooling, residual moisture on the surface, and affect subsequent operations. It may even cause fiber deformation, cracking, or production line shutdown.
A cooling device including water cooling, air cooling and auxiliary mechanisms was designed. The water cooling mechanism rapidly lowers the temperature, the air cooling mechanism removes moisture, and the auxiliary mechanism ensures uniform cooling of the fibers. Components such as lifting frames, rollers, springs and cleaning brushes are used to achieve full contact and drying of the fibers.
This method enables rapid and uniform cooling of the fibers, removes moisture from the fiber surface, ensures the fiber's setting effect and tensile strength, avoids malfunctions during the production process, and improves production efficiency.
Smart Images

Figure CN224133256U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polypropylene production technology, specifically a cooling device for polypropylene staple fiber production. Background Technology
[0002] In the production of polypropylene staple fiber, the design of the cooling device is crucial because it directly affects the quality of the fiber and the production efficiency. The main purpose of cooling is to rapidly cool the fiber during stretching and forming to ensure its solidification and shaping, and to avoid deformation and uneven stretching.
[0003] Without water cooling, the fibers may not cool quickly and evenly, which can easily lead to problems such as incomplete cooling and uneven fiber surface, resulting in uneven fiber stretching, deformation, or cracking.
[0004] Secondly, without an air drying function, too much moisture may remain on the fiber surface, affecting subsequent fiber operations such as winding and cutting, and may even lead to production line shutdown or equipment failure.
[0005] Finally, if the fibers are not pressed into the water in the cooling tank, they may not be cooled sufficiently, and the surface may remain overheated, affecting the setting effect, resulting in an uneven fiber surface, and even affecting tensile strength. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] In view of the shortcomings of the prior art, this utility model provides a cooling device for polypropylene staple fiber production to solve the technical problems mentioned in the background art.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for polypropylene staple fiber production, comprising a main body, a water cooling mechanism, an air cooling mechanism, and an auxiliary mechanism. The water cooling mechanism includes a first cooling box, a lifting frame, a first roller, a first spring, a mounting plate, and a cleaning brush. The first cooling box is fixedly installed on the main body. The lifting frame is installed on the first cooling box and slidably connected to it. The first roller is installed in the lifting frame and rotatably connected to it. The first spring is fixedly installed in the lifting frame, and its other end is fixedly connected to the first cooling box. The mounting plate is installed on one side of the first cooling box, and the cleaning brush is fixedly installed on the mounting plate. The air cooling mechanism includes a second cooling box, a cover plate, a fan, a fixing component, and a filter pad. The second cooling box is fixedly installed on the main body. The cover plate is fixedly installed on the second cooling box and cooperates with it. The fan is fixedly installed at the bottom of the main body. The fixing component is installed on both sides of the second cooling box, and the filter pad is installed on the second cooling box.
[0010] Preferably, the auxiliary mechanism includes a second roller, a second spring, a locking block, and a collecting component. The second roller is mounted on the first cooling box, the second spring is fixedly mounted on the lifting frame and its other end is fixedly connected to the locking block, the collecting component is fixedly mounted inside the first cooling box, and the locking block is mounted on the lifting frame and slidably connected to the lifting frame.
[0011] In a further preferred embodiment, the first cooling box is provided with a first through rod and a second through rod, the lifting frame slides on the first through rod, and the locking block slides on the second through rod, which facilitates the normal operation of the first cooling box.
[0012] In a further preferred embodiment, the bottom of the first cooling tank is provided with an inlet pipe and an outlet pipe, which are respectively located on both sides of the first cooling tank to facilitate the replacement of water inside the first cooling tank.
[0013] In a further preferred embodiment, the first cooling box is provided with a locking hole, the bottom of the lifting frame is provided with a telescopic groove, the locking block is connected to the locking hole, and one end of the first spring is fixedly installed in the telescopic groove, which facilitates the fixed installation of the lifting frame and the first cooling box.
[0014] In a further preferred embodiment, a magnet plate is provided at one end of the mounting plate, and the magnet plate is magnetically connected to the first cooling box, which facilitates the fixed installation of the mounting plate on the first cooling box.
[0015] In a further preferred embodiment, the cover plate is provided with an insert, the insert is provided with a sealing gasket, and the second cooling box is provided with a sealing groove, the sealing gasket and the sealing groove are connected to each other to facilitate the sealed operation of the second cooling box.
[0016] In a further preferred embodiment, the second cooling box is provided with a limiting groove, and the fixing member is provided with a limiting block. The limiting block and the limiting groove are connected in a cooperative manner to facilitate the installation of the fixing member.
[0017] (III) Beneficial Effects
[0018] Compared with the prior art, this utility model provides a cooling device for polypropylene staple fiber production, which has the following beneficial effects:
[0019] In this invention, by setting up a water cooling mechanism, the water cooling of the device can quickly remove the heat from the fibers through the coordinated action of components such as the first cooling box, the lifting frame, the first roller, the first spring, the mounting plate, and the cleaning brush, allowing the fibers to transition from a molten state to a solidified state as quickly as possible.
[0020] In this invention, by setting up an air cooling mechanism, the device uses air cooling to dry the moisture on the fibers after water cooling, through the coordinated action of components such as the second cooling box, cover plate, fan, fixing parts and filter pad. This can quickly remove moisture and prevent water droplets on the fiber surface from affecting subsequent processing steps (such as stretching, twisting, winding, etc.).
[0021] In this invention, by setting up an auxiliary mechanism, the device can ensure that each fiber can come into contact with water by pressing the fiber into the water in the cooling tank through the cooperation of components such as the second roller, the second spring, the locking block and the collecting component, thereby achieving a more comprehensive and uniform cooling effect. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of a cooling device for polypropylene staple fiber production according to the present invention;
[0023] Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle;
[0024] Figure 3 This is an exploded view of the water-cooling mechanism in this utility model;
[0025] Figure 4 This is a schematic diagram of the auxiliary mechanism in this utility model;
[0026] Figure 5 This is an exploded view of the air cooling mechanism in this utility model.
[0027] In the diagram: 1. Main body; 2. First cooling box; 3. Lifting frame; 4. First roller; 5. First spring; 6. Mounting plate; 7. Cleaning brush; 8. Second cooling box; 9. Cover plate; 10. Fan; 11. Fixing component; 12. Filter pad; 13. Second roller; 14. Second spring; 15. Locking block; 16. Collecting component; 17. First through rod; 18. Second through rod; 19. Water inlet pipe; 20. Water outlet pipe; 21. Locking hole; 22. Telescopic groove; 23. Magnet plate; 24. Embedded component; 25. Sealing gasket; 26. Sealing groove; 27. Limiting groove; 28. Limiting block. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Example 1:
[0030] Please see Figures 1-5 A cooling device for polypropylene staple fiber production includes a main body 1, a water cooling mechanism, an air cooling mechanism, and an auxiliary mechanism. The water cooling mechanism includes a first cooling box 2, a lifting frame 3, a first roller 4, a first spring 5, a mounting plate 6, and a cleaning brush 7. The first cooling box 2 is fixedly installed on the main body 1. The lifting frame 3 is installed on the first cooling box 2 and slidably connected to it. The first roller 4 is installed in the lifting frame 3 and rotatably connected to it. The first spring 5 is fixedly installed in the lifting frame 3, and its other end is fixedly connected to the first cooling box 2. The mounting plate 6 is installed on one side of the first cooling box 2, and the cleaning brush 7 is fixedly installed on the mounting plate 6. The air cooling mechanism includes a second cooling box 8, a cover plate 9, a fan 10, a fixing component 11, and a filter pad 12. The second cooling box 8 is fixedly installed on the main body 1. The cover plate 9 is fixedly installed on the second cooling box 8 and mates with it. The fan 10 is fixedly installed at the bottom of the main body 1. The fixing component 11 is installed on both sides of the second cooling box 8, and the filter pad 12 is installed on the second cooling box 8.
[0031] In this embodiment, the water-cooling mechanism includes a first cooling tank 2, a lifting frame 3, a first roller 4, a first spring 5, a mounting plate 6, and a cleaning brush 7. During use, a thread made of polypropylene short fibers passes through the first cooling tank 2. As the thread passes through the first cooling tank 2, the lifting frame 3 is raised, and the first roller 4 rises and falls accordingly. When the polypropylene short fibers are completely placed in the first cooling tank 2, the lifting frame 3 is pressed down, allowing it to slide on the first through rod 17 on the first cooling tank 2. This compresses the first spring 5 installed in the telescopic groove 22, thereby causing the first roller 4 to press down on the thread formed by the polypropylene short fibers. In the first cooling box 2, cooling water flows through the outlet pipe 20 and inlet pipe 19 on both sides of the first cooling box 2, thereby cooling the polypropylene staple fiber thread. When the polypropylene staple fiber thread is pulled, the thread slides on the second roller 13 on the first cooling box 2 and contacts the cleaning brush 7 in the mounting plate 6 installed on the first cooling box 2. The cleaning brush 7 cleans the polypropylene staple fiber thread and absorbs the moisture on the thread. After the cleaning brush 7 has been used for a period of time, the magnet plate 23 on the mounting plate 6 can be pulled out, so that the mounting plate 6 is detached from the first cooling box 2, and the cleaning brush 7 can be replaced.
[0032] In this embodiment, the air cooling mechanism includes a second cooling box 8, a cover plate 9, a fan 10, a fixing member 11, and a filter pad 12. In use, after the polypropylene short fiber thread passes through the first cooling box 2, it is placed into the second cooling box 8. First, the cover plate 9 is opened, and the sealing gasket 25 in the insert 24 on the cover plate 9 disengages from the sealing groove 26 in the second cooling box 8. After the polypropylene short fiber thread has completely passed through the second cooling box 8, the fan 10 is driven, and a negative pressure is generated in the second cooling box 8. At this time, the outside air enters the second cooling box 8 through the fixing member 11. In order to clean the air, the filter pad 12 installed on the second cooling box 8 filters the air. When the filter pad 12 needs to be replaced, the fixing member 11 can be removed from the second cooling box 8. The limiting block 28 on the fixing member 11 can slide in the limiting groove 27 in the second cooling box 8.
[0033] In this embodiment, the auxiliary mechanism includes a second roller 13, a second spring 14, a locking block 15, and a collecting component 16. In use, if the lifting platform needs to be raised or lowered, the locking block 15 can be pulled. The locking block 15 can slide in the second through rod 18 on the lifting frame 3 and compress the second spring 14. The locking block 15 also disengages from the locking hole 21 on the first cooling box 2. At this time, the lifting platform is raised. When the water flow in the first cooling box 2 cools the polypropylene short fiber thread, some debris may be left in the first cooling box 2. Due to gravity, the debris will fall into the collecting component 16 installed in the first cooling box 2. When it is necessary to clean the collecting component 16, the collecting component 16 can be taken out. Under the action of the second roller 13, the polypropylene short fiber thread can pass through the first cooling box 2 more smoothly.
[0034] Example 2:
[0035] In summary, during use, the thread made of polypropylene staple fiber is first passed through the first cooling box 2. If the lifting platform needs to be raised or lowered while the thread is passing through the first cooling box 2, the locking block 15 can be pulled. The locking block 15 can then slide in the second through rod 18 on the lifting frame 3, compressing the second spring 14. The locking block 15 also disengages from the locking hole 21 on the first cooling box 2. At this point, the lifting frame 3 is raised, and the first roller 4 rises and falls accordingly. Once the polypropylene staple fiber is completely placed in the first cooling box 2, the lifting frame 3 is pressed down, allowing it to slide on the first through rod 17 on the first cooling box 2 and compress the tension groove. The first spring 5 in section 22 causes the first roller 4 to press the polypropylene staple fiber thread into the first cooling box 2. Cooling water flows through the outlet pipe 20 and inlet pipe 19 on both sides of the first cooling box 2, thereby cooling the polypropylene staple fiber thread. When the polypropylene staple fiber thread is pulled, the thread slides on the second roller 13 on the first cooling box 2 and contacts the cleaning brush 7 in the mounting plate 6 installed on the first cooling box 2. The cleaning brush 7 cleans the polypropylene staple fiber thread and absorbs the moisture on it. After the cleaning brush 7 has been used for a period of time, the magnet plate 23 on the mounting plate 6 can be pulled out to allow the thread to cool down. The mounting plate 6 is detached from the first cooling box 2, completing the replacement of the cleaning brush 7. When the water flow in the first cooling box 2 cools the polypropylene staple fiber thread, some debris may be left in the first cooling box 2. Due to gravity, this debris will fall into the collection piece 16 installed in the first cooling box 2. When it is necessary to clean the collection piece 16, it can be removed. Under the action of the second roller 13, the polypropylene staple fiber thread can pass through the first cooling box 2 more smoothly. After the polypropylene staple fiber thread passes through the first cooling box 2, it is placed into the second cooling box 8. First, open the cover. 9. The sealing gasket 25 in the insert 24 on the cover plate 9 disengages from the sealing groove 26 in the second cooling box 8. After the polypropylene short fiber thread has completely passed through the second cooling box 8, the fan 10 is driven, and negative pressure is generated in the second cooling box 8. At this time, the outside air will enter the second cooling box 8 through the fixing part 11. In order to clean the air, the filter pad 12 installed on the second cooling box 8 filters the air. When the filter pad 12 needs to be replaced, the fixing part 11 can be removed from the second cooling box 8. The limiting block 28 on the fixing part 11 can slide in the limiting groove 27 in the second cooling box 8.
[0036] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A cooling device for producing polypropylene staple fibers, comprising a main body (1), a water cooling mechanism, an air cooling mechanism, and an auxiliary mechanism, characterized in that, The water-cooling mechanism includes a first cooling tank (2), a lifting frame (3), a first roller (4), a first spring (5), a mounting plate (6), and a cleaning brush (7). The first cooling tank (2) is fixedly installed on the main body (1). The lifting frame (3) is installed on the first cooling tank (2) and slidably connected to the first cooling tank (2). The first roller (4) is installed in the lifting frame (3) and rotatably connected to the lifting frame (3). The first spring (5) is fixedly installed in the lifting frame (3), and its other end is fixedly connected to the first cooling tank (2). The mounting plate (6) is installed on the first cooling tank. (2) On one side, the cleaning brush (7) is fixedly installed on the mounting plate (6). The air cooling mechanism includes a second cooling box (8), a cover plate (9), a fan (10), a fixing part (11), and a filter pad (12). The second cooling box (8) is fixedly installed on the main body (1). The cover plate (9) is fixedly installed on the second cooling box (8) and is connected to the second cooling box (8). The fan (10) is fixedly installed at the bottom of the main body (1). The fixing part (11) is installed on both sides of the second cooling box (8). The filter pad (12) is installed on the second cooling box (8).
2. The cooling device for producing polypropylene staple fiber according to claim 1, wherein: The auxiliary mechanism includes a second roller (13), a second spring (14), a locking block (15), and a collecting component (16). The second roller (13) is mounted on the first cooling box (2). The second spring (14) is fixedly mounted on the lifting frame (3), and its other end is fixedly connected to the locking block (15). The collecting component (16) is fixedly mounted inside the first cooling box (2). The locking block (15) is mounted on the lifting frame (3) and is slidably connected to the lifting frame (3).
3. The cooling device for producing polypropylene staple fiber according to claim 2, characterized in that: The first cooling box (2) is provided with a first through rod (17) and a second through rod (18). The lifting frame (3) slides on the first through rod (17) and the locking block (15) slides on the second through rod (18).
4. The cooling device for producing polypropylene staple fiber according to claim 1, wherein: The bottom of the first cooling box (2) is provided with a water inlet pipe (19) and a water outlet pipe (20), which are respectively located on both sides of the first cooling box (2).
5. The cooling device for producing polypropylene staple fiber according to claim 3, wherein: The first cooling box (2) is provided with a card hole (21), the bottom of the lifting frame (3) is provided with a telescopic groove (22), the card block (15) is connected to the card hole (21), and one end of the first spring (5) is fixedly installed in the telescopic groove (22).
6. The cooling device for producing polypropylene staple fiber according to claim 1, wherein: A magnet plate (23) is provided at one end of the mounting plate (6), and the magnet plate (23) is magnetically connected to the first cooling box (2).
7. The cooling device for producing polypropylene staple fiber according to claim 1, wherein: An insert (24) is provided on the cover plate (9), and a sealing gasket (25) is provided on the insert (24). A sealing groove (26) is provided on the second cooling box (8), and the sealing gasket (25) and the sealing groove (26) are connected in cooperation.
8. A cooling device for polypropylene staple fiber production according to claim 7, characterized in that: The second cooling box (8) is provided with a limiting groove (27), and the fixing member (11) is provided with a limiting block (28), and the limiting block (28) is connected to the limiting groove (27).