A winding device for producing polypropylene (PP) yarn

Abstract

The utility model discloses a kind of winding devices for polypropylene yarn PP production, it is related to polypropylene yarn PP production technical field, including winding machine, the lateral wall of winding machine is fixedly connected with pneumatic cylinder, the bottom of pneumatic cylinder is fixedly connected with buffer plate, the inner wall of buffer plate is equipped with movable rod.The utility model is provided with pneumatic cylinder, buffer plate, movable rod, buffer spring and cutting knife, by starting pneumatic cylinder and driving cutting knife to move downwards, polypropylene yarn PP is cut, when cutting knife contacts polypropylene yarn PP, cutting knife is stressed and drives movable rod to move upwards, while buffer spring starts to compress, utilize buffer spring and can be absorbed by elastic deformation part of impact force, let cutting force slowly act on yarn, ensure that incision is smooth, reduce cutting, if cutting knife directly rigid contact when cutting, it is easy to cause yarn to be "torn" instead of "cut off" due to instantaneous tension sudden increase, form the problem of burr, wire drawing or irregular incision, to protect yarn, improve incision quality.

Description

Technical Field

[0001] This utility model relates to the field of polypropylene (PP) yarn production technology, specifically a winding device for producing polypropylene (PP) yarn. Background Technology

[0002] Polypropylene (PP) yarn, a synthetic fiber yarn made from polypropylene, is widely used in textiles, packaging, industrial filter materials, medical and health, agriculture and other fields due to its significant advantages such as light weight, high strength, wear resistance, chemical corrosion resistance and low cost. In the production process of polypropylene PP yarn, winding is a crucial finishing step. Its main function is to neatly and tightly wind the continuous yarn, which has undergone previous processes such as spinning, stretching and twisting, onto a spool or bobbin under certain tension, speed and winding density, forming a package that is easy to store, transport and further process, such as weaving and knitting. Therefore, a winding device is needed for the production of polypropylene PP yarn.

[0003] Existing winding devices for polypropylene (PP) yarn production operate in a way that is problematic. PP yarn is a thermoplastic synthetic fiber with a fragile monofilament structure and poor resistance to sudden impact. When the cutting blade directly and rigidly contacts the yarn with instantaneous force, the yarn is not "shorn" by the blade; instead, it first experiences tensile forces exceeding its breaking strength, leading to asynchronous breakage between monofilaments, resulting in burrs, fraying, or irregular cuts. When producing rolls of varying widths, the fixed dust hood cannot cover the newly added roll edge areas. This uncollected dust spreads throughout the workshop, adhering not only to equipment guide rails and sensor surfaces but also being inhaled by operators. Long-term exposure may cause respiratory irritation. Therefore, a new winding device for polypropylene (PP) yarn production is urgently needed. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a winding device for the production of polypropylene (PP) yarn, to solve the problem that existing winding devices for PP yarn production, when in use, address the issue that PP yarn is a thermoplastic synthetic fiber with a fragile monofilament structure and poor resistance to instantaneous impact. When the cutting blade directly and rigidly contacts the yarn with instantaneous force, the yarn is not "shorn" by the blade, but rather first subjected to tensile force exceeding its breaking strength, causing asynchronous breakage between monofilaments, resulting in burrs, fraying, or irregular cuts. When producing rolls of different widths, the fixed dust hood cannot cover the newly added roll edge area. This uncollected dust will spread in the workshop, not only adhering to the equipment guide rails and sensor surfaces, but also being inhaled by operators, potentially causing respiratory irritation symptoms with long-term exposure.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a winding device for producing polypropylene (PP) yarn, comprising a winding device, a cylinder fixedly connected to the side wall of the winding device, a buffer plate fixedly connected to the bottom of the cylinder, a movable rod installed on the inner wall of the buffer plate, a buffer spring installed on the outer wall of the movable rod, and a cutting blade fixedly connected to one end of the movable rod.

[0006] A collection box is fixedly connected to the top of the winding device, a dust extraction fan is fixedly connected to the side wall of the collection box, a conveying pipe is fixedly connected to the side wall of the collection box, a dust extraction hood is fixedly connected to one end of the conveying pipe, a slider is installed on the outer wall of the conveying pipe, a threaded groove is opened on the inner wall of the slider, a movable frame is fixedly connected to the top of the winding device, a drive motor is fixedly connected to the side wall of the movable frame, and a lead screw is fixedly connected to the drive motor through a coupling.

[0007] Preferably, the buffer plate is connected to the rewinder via a cylinder to form a lifting structure, and the buffer plate is movably connected to the movable rod.

[0008] Preferably, the cutting blade forms a telescopic structure with a buffer spring and a buffer plate, and the buffer spring is sleeved with the movable rod.

[0009] Preferably, the lead screw is threadedly connected to the movable frame, and the lead screw is threadedly connected to the slider through a threaded groove.

[0010] Preferably, the conveying pipe forms a sliding structure with the slider and the movable frame, and the movable frame and the slider are engaged and connected.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model utilizes a cylinder, buffer plate, movable rod, buffer spring, and cutting blade. The cylinder drives the cutting blade downwards to cut polypropylene (PP) yarn. When the cutting blade contacts the PP yarn, it is subjected to force, causing the movable rod to move upwards. Simultaneously, the buffer spring compresses. The buffer spring absorbs some of the impact force through elastic deformation, allowing the cutting force to act slowly on the yarn, ensuring a smooth and even cut. This reduces the risk of the yarn being "torn" rather than "cut" due to a sudden increase in tension if the cutting blade makes direct, hard contact during cutting, resulting in rough edges, fraying, or irregular cuts. Therefore, this invention protects the yarn and improves cut quality. 2. This utility model, through its collection box, vacuum fan, conveying pipe, vacuum hood, slider, moving frame, drive motor, and lead screw, uses a vacuum fan and vacuum hood to collect the fine fiber dust generated by the friction of polypropylene yarn into the collection box. Simultaneously, the drive motor can move the vacuum hood to flexibly adjust its position, accurately covering both heavily contaminated areas near the winding head and scattered pollutants along the yarn conveying path. Compared to fixed vacuum structures that can only target specific areas, this utility model can bring the vacuum hood closer to the source of pollutants, significantly improving vacuuming efficiency, reducing floating fibers and dust in the workshop air, thereby improving the overall air quality and providing a healthier working environment for operators. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a schematic diagram of the cutting assembly of this utility model; Figure 3 This is a schematic diagram of the structure of the adjustment component of this utility model; Figure 4 This is a schematic diagram of the structure of the component on the slider of this utility model.

[0013] In the diagram: 1. Winder; 2. Cylinder; 3. Buffer plate; 4. Movable rod; 5. Buffer spring; 6. Cutting blade; 7. Collection box; 8. Dust extraction fan; 9. Conveying pipe; 10. Dust extraction hood; 11. Slider; 12. Threaded groove; 13. Moving frame; 14. Drive motor; 15. Lead screw. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0015] The embodiments of this utility model will be described below based on its overall structure.

[0016] Please see Figures 1-4A winding device for producing polypropylene (PP) yarn includes a winding unit 1. A cylinder 2 is fixedly connected to the side wall of the winding unit 1. A buffer plate 3 is fixedly connected to the bottom of the cylinder 2. A movable rod 4 is installed on the inner wall of the buffer plate 3, and a buffer spring 5 is installed on the outer wall of the movable rod 4. A cutting blade 6 is fixedly connected to one end of the movable rod 4. The buffer plate 3 and the winding unit 1 form a lifting structure through the cylinder 2, and the buffer plate 3 is movably connected to the movable rod 4. The cutting blade 6 and the buffer plate 3 form a telescopic structure through the buffer spring 5, and the buffer spring 5 is sleeved with the movable rod 4. When using the device, the cylinder 2 is vented, and the piston rod pushes the buffer plate 3, the movable rod 4, and the cutting blade 6 downwards at a relatively uniform speed. The cutting edge of the cutting blade 6 gradually approaches the polypropylene PP yarn to be cut. As the cutting blade 6 continues to move downwards, its sharp cutting edge finally contacts the surface of the polypropylene PP yarn. At this point, the polypropylene PP yarn... The yarn itself has a certain tension due to being under tension. This tension will produce an instantaneous reaction force on the cutting edge of the cutting blade 6, instantly slowing it down. This causes the movable rod 4 to retract upward relative to the buffer plate 3, and the buffer spring 5 to begin to compress and undergo elastic deformation. During this process, the elastic potential energy of the buffer spring 5 quickly absorbs the kinetic energy of the cylinder 2, thereby ensuring that the cut cross section of each monofilament is flat.

[0017] Please see Figures 1-4 A winding device for producing polypropylene (PP) yarn includes a winding take-up unit 1 with a collection box 7 fixedly connected to its top. A dust extraction fan 8 is fixedly connected to the side wall of the collection box 7, and a conveying pipe 9 is fixedly connected to the side wall of the collection box 7. A dust extraction hood 10 is fixedly connected to one end of the conveying pipe 9. A slider 11 is installed on the outer wall of the conveying pipe 9, and a threaded groove 12 is formed on the inner wall of the slider 11. A movable frame 13 is fixedly connected to the top of the winding take-up unit 1, and a drive motor 14 is fixedly connected to the side wall of the movable frame 13. A lead screw 15 is fixedly connected to the drive motor 14 via a coupling. The lead screw 15 is threadedly connected to the movable frame 13, and the lead screw 15 is also threadedly connected to the slider 11 via the threaded groove 12. The conveying pipe 9 and the movable frame 13 form a sliding structure via the slider 11. 13 engages with slider 11. When using the device, after the winding device 1 is started, the vacuum fan 8 starts simultaneously, forming a stable negative pressure at the opening of the vacuum hood 10. When the polypropylene yarn generates tiny fibers through high-speed friction between the guide wheel and the roll, these fibers are sucked into the vacuum hood 10 and then flow with the airflow through the conveying pipe 9 into the collection box 7 for subsequent collection and processing. If the position of the vacuum hood 10 needs to be adjusted, the drive motor 14 is started, and the output shaft of the drive motor 14 drives the lead screw 15 to rotate. Since the lead screw 15 is threadedly connected to slider 11 through the threaded groove 12, the conveying pipe 9 moves within the moving frame 13 through slider 11 under the drive of the rotation of the lead screw 15, and simultaneously drives the vacuum hood 10 to move, thereby getting closer to the source of pollutants and greatly improving the vacuuming efficiency.

[0018] Working principle: In use, first move the device to a suitable position, then start the winding machine 1 to wind up the yarn. During the winding process, start the vacuum fan 8, and use the vacuum hood 10 to absorb the fine fiber dust generated by the friction of the polypropylene yarn. The dust is then transported to the collection box 7 through the conveying pipe 9 for centralized collection. At the same time, the drive motor 14 can be started, and the output shaft of the drive motor 14 drives the lead screw 15 to rotate. Driven by the rotation of the lead screw 15, the conveying pipe 9 moves within the moving frame 13 through the slider 11, and synchronously moves the vacuum hood 10, allowing the vacuum hood 10 to be close to the dirt. At the source of dyeing, when the polypropylene (PP) yarn needs to be cut after winding, simply activate cylinder 2 and push it downwards. This will cause the cutting blade 6 to move downwards and cut the wound polypropylene (PP) yarn. When the cutting blade 6 contacts the polypropylene (PP) yarn, it is subjected to force and causes the movable rod 4 to move upwards. At the same time, it causes the buffer spring 5 to compress. The buffer spring 5 can absorb part of the impact force through elastic deformation, making the cut smooth and even. This completes the use of the device. The contents not described in detail in this manual are existing technologies known to those skilled in the art.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A winding device for producing polypropylene (PP) yarn, comprising a winder (1), characterized in that: A cylinder (2) is fixedly connected to the side wall of the winding device (1), a buffer plate (3) is fixedly connected to the bottom of the cylinder (2), a movable rod (4) is installed on the inner wall of the buffer plate (3), a buffer spring (5) is installed on the outer wall of the movable rod (4), and a cutting blade (6) is fixedly connected to one end of the movable rod (4). The top of the winding device (1) is fixedly connected to a collection box (7), the side wall of the collection box (7) is fixedly connected to a dust extraction fan (8), the side wall of the collection box (7) is fixedly connected to a conveying pipe (9), one end of the conveying pipe (9) is fixedly connected to a dust extraction hood (10), the outer wall of the conveying pipe (9) is equipped with a slider (11), the inner wall of the slider (11) is provided with a threaded groove (12), the top of the winding device (1) is fixedly connected to a moving frame (13), the side wall of the moving frame (13) is fixedly connected to a drive motor (14), and the drive motor (14) is fixedly connected to a lead screw (15) through a coupling.

2. A winding device for producing polypropylene (PP) yarn according to claim 1, characterized in that: The buffer plate (3) forms a lifting structure with the rewinder (1) via the cylinder (2), and the buffer plate (3) is movably connected to the movable rod (4).

3. A winding device for producing polypropylene (PP) yarn according to claim 1, characterized in that: The cutting blade (6) forms a telescopic structure with the buffer plate (3) through the buffer spring (5), and the buffer spring (5) is sleeved with the movable rod (4).

4. A winding device for producing polypropylene (PP) yarn according to claim 1, characterized in that: The lead screw (15) is threadedly connected to the movable frame (13), and the lead screw (15) is threadedly connected to the slider (11) through the threaded groove (12).

5. A winding device for producing polypropylene (PP) yarn according to claim 1, characterized in that: The conveying pipe (9) forms a sliding structure with the movable frame (13) via the slider (11), and the movable frame (13) and the slider (11) are engaged and connected.

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