Heating and stretching device for polyethylene fiber production

Abstract

The utility model discloses a heating stretching device for polyethylene fiber production, which comprises a mounting rack, a heating stretching refrigeration integrated mechanism and a connecting conduction mechanism, the heating stretching refrigeration integrated mechanism comprises a limiting groove, a turntable is arranged in the limiting groove, one side of the turntable is fixedly connected with a rotating roller, and the other side of the turntable is fixedly connected with the connecting conduction mechanism. And the inner side of the mounting rack is fixedly connected with a first sealing frame. Through the arrangement of the heating, stretching and refrigerating integrated mechanism and the rapid cooling effect of the air cooler and the second sealing frame, the orientation structure of fibers can be fixed in time, molecular chains of the fibers are in an orientation state, the temperature of the fibers can be rapidly reduced through the cooling structure, the molecular chains are prevented from being recovered to the original disordered state in the subsequent process, and the quality of the fibers is improved. Therefore, excellent properties such as high strength and modulus of the fibers are kept, thermal shrinkage and adhesion of the fibers in the subsequent process are prevented, the dimensional stability and loose state of the fibers are ensured, the product quality is further ensured, the defective rate is reduced, and the production benefit is improved.

Description

Technical Field

[0001] This utility model relates to the field of polyethylene fiber production technology, specifically to a heating and stretching device for polyethylene fiber production. Background Technology

[0002] Polyethylene fiber is a fiber made from polyethylene, a thermoplastic resin formed by the polymerization of ethylene monomers. Its molecular structure consists of many repeating ethylene units. When made into fibers, these long-chain polyethylene molecules arrange and intertwine to form a fibrous structure. From a microscopic perspective, polyethylene fibers can have different crystalline forms and molecular orientations. Depending on the production process, the polyethylene molecular chains inside the fiber may have varying degrees of arrangement. The crystalline portion has tightly packed and regular molecular chains, giving the fiber a certain strength and hardness; while the amorphous portion is relatively loose, giving the fiber a certain degree of flexibility.

[0003] In the industrial production process of polyethylene fiber, stretching is a crucial step, relying on specialized heating and stretching equipment. Currently, most heating and stretching devices for polyethylene fiber production on the market primarily use adjustable rollers to stretch the fibers. However, these devices have significant shortcomings in the cooling process, mostly relying on natural cooling. In actual production scenarios, this natural cooling method has many drawbacks. If the stretched fibers are not cooled in time, they are prone to thermal shrinkage when exposed to fluctuations in ambient temperature or during natural heat dissipation. This not only affects the dimensional stability of the fibers, leading to inconsistent product quality, but also causes a series of problems in subsequent processing and application stages, such as uneven tension during fiber winding and weaving, thereby reducing production efficiency and product yield, resulting in poor practicality. Therefore, to solve the above problems, a heating and stretching device for polyethylene fiber production is proposed. Utility Model Content

[0004] The present invention mainly addresses the technical problems existing in the prior art and provides a heating and stretching device for polyethylene fiber production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heating and stretching device for polyethylene fiber production, comprising a mounting frame, an integrated heating, stretching, and cooling mechanism, and a connecting and conducting mechanism. The integrated heating, stretching, and cooling mechanism includes a limiting groove, inside which is a turntable. A rotating roller is fixedly connected to one side of the turntable. A first closed frame is fixedly connected to the inner side of the mounting frame. A hot air blower is fixedly installed on one side of the first closed frame. A second closed frame is fixedly connected to the inner side of the mounting frame. A cold air blower is fixedly installed on one side of the second closed frame. Temperature sensors are fixedly installed inside the first and second closed frames. An electric slide rail is provided inside the mounting frame. A slider is provided inside the electric slide rail. A moving plate is fixedly connected to one side of the slider. An adjusting roller is rotatably connected to one side of the moving plate. Three rotating rollers are provided inside the first closed frame, and three rotating rollers are also provided inside the second closed frame. The polyethylene fiber is wound and moved by the three rotating rollers in the first closed frame and then wound by the moving roller. The polyethylene fiber is stretched by adjusting the up and down movement of the moving roller.

[0006] Preferably, the turntable is slidably connected to the limiting groove, and the slider is slidably connected to the electric slide rail. The electric slide rail drives the slider to move up and down, thereby driving the adjusting roller to move up and down.

[0007] Preferably, the first and second closed frames are fixed on both sides of the inner side of the mounting frame, the limiting groove is opened inside the mounting frame, the air outlet of the hot air blower is located inside the first closed frame, and the air outlet of the cold air blower is located inside the second closed frame.

[0008] Preferably, a first limiting plate is fixedly connected to one end of the rotating roller, and a second limiting plate is fixedly connected to one end of the adjusting roller. The first and second limiting plates prevent polyethylene fibers from sliding off the rotating roller and the adjusting roller.

[0009] Preferably, the connecting transmission mechanism includes a mounting groove, a mounting plate is fixedly connected inside the mounting groove, a motor is fixedly mounted on one side of the mounting plate, a pulley is fixedly connected to the output end of the motor, a belt is driven inside the pulley, the pulley is fixedly connected to the turntable, a belt is wound around every three pulleys, the motor drives one of the pulleys, and the belt can drive all three pulleys simultaneously.

[0010] Preferably, the pulleys are disposed inside the mounting groove, which is located inside the mounting frame. There are six pulleys, all disposed on both sides inside the mounting groove.

[0011] Preferably, a base is fixedly connected to the lower side of the mounting bracket, and handles are fixedly connected to both sides of the mounting bracket. Four bases are provided, which are respectively located at the four corners of the bottom of the mounting bracket.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the integrated heating, stretching, and cooling mechanism, and the rapid cooling effect of the cold air blower and the second enclosed frame, can promptly fix the orientation structure of the fiber. The molecular chains of the fiber are in an oriented state, and the cooling structure can quickly reduce the temperature of the fiber, preventing the molecular chains from returning to their original disordered state in subsequent processes. This maintains the high strength and modulus of the fiber, prevents the fiber from thermally shrinking and sticking in subsequent processes, ensures the dimensional stability and loose state of the fiber, further ensures product quality, reduces the defect rate, and improves production efficiency. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a frontal view of the overall structure of this utility model;

[0016] Figure 2 This is a structural schematic diagram of the present invention in frontal cross-section;

[0017] Figure 3 This is a schematic diagram of the overall structure of the present invention from the rear view.

[0018] Figure 4 This is a side view sectional diagram of the present invention.

[0019] Figure 5 This is a structural schematic diagram of the rear cross-section of this utility model.

[0020] In the diagram: 1. Mounting bracket; 2. Limiting groove; 3. Turntable; 4. Rotating roller; 5. First enclosed frame; 6. Hot air blower; 7. Second enclosed frame; 8. Cold air blower; 9. Temperature sensor; 10. Electric slide rail; 11. Slider; 12. Moving plate; 13. Adjusting roller; 14. First limiting plate; 15. Second limiting plate; 16. Mounting groove; 17. Mounting plate; 18. Motor; 19. Pulley; 20. Belt; 21. Base; 22. Handle. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5A heating and stretching device for polyethylene fiber production includes a mounting frame 1, an integrated heating, stretching, and cooling mechanism, and a connecting and conducting mechanism. The integrated heating, stretching, and cooling mechanism includes a limiting groove 2, inside which a turntable 3 is disposed. A rotating roller 4 is fixedly connected to one side of the turntable 3. A first enclosed frame 5 is fixedly connected to the inner side of the mounting frame 1. A hot air blower 6 is fixedly installed on one side of the first enclosed frame 5. A second enclosed frame 7 is fixedly connected to the inner side of the mounting frame 1. A cold air blower 8 is fixedly installed on one side of the second enclosed frame 7. Temperature sensors 9 are fixedly installed on the inner sides of the first enclosed frame 5 and the second enclosed frame 7. An electric slide rail 10 is provided inside the mounting frame 1. A slider 11 is provided inside the electric slide rail 10. A movable plate 12 is fixedly connected to one side of the slider 11. An adjusting roller 13 is rotatably connected to one side of the movable plate 12. The turntable 3 is slidably connected to the limiting groove 2. The slider 11 is slidably connected to the electric slide rail 10. The first closed frame 5 and the second closed frame 7 are both fixed on the two sides of the inner side of the mounting frame 1. The limiting groove 2 is opened inside the mounting frame 1. One end of the rotating roller 4 is fixedly connected to the first limiting plate 14. One end of the adjusting roller 13 is fixedly connected to the second limiting plate 15. Polyethylene fibers enter the mounting frame 1 and pass through the first closed frame. The three rotating rollers 4 inside the first closed frame 5 move in a winding motion. A hot air blower 6 blows hot air into the first closed frame 5 to heat the fibers, enhancing the mobility of the fiber molecular chains and making them softer and easier to stretch. Simultaneously, a temperature sensor 9 inside the first closed frame 5 monitors the temperature in real time to ensure the heating process is within a suitable temperature range, guaranteeing the fiber's stretchability and uniform quality. Then, after the fiber exits the first closed frame 5, it passes around an adjusting roller 13 on one side of the moving plate 12. An electric slide rail 10 drives the moving plate 12 up and down via a slider 11, thereby moving the adjusting roller 13 up and down to stretch the fiber. By changing the position of the adjusting roller 13, the degree of fiber stretching can be precisely controlled, improving fiber strength and modulus, and controlling fiber diameter and dimensional accuracy. The stretched fiber enters the second closed frame 7, and the cold air blower 8 blows cold air into the second closed frame 7 to rapidly cool the fiber. During the cooling process, the temperature sensor 9 inside the second closed frame 7 also plays a role in monitoring the temperature. Rapid cooling can fix the fiber orientation structure, prevent the molecular chains from returning to their original disordered state, maintain the fiber's high strength and modulus and other excellent properties, and at the same time prevent fiber adhesion and reduce thermal shrinkage, ensuring the fiber's dimensional stability.After stretching, the rapid cooling effect of the air cooler 8 and the second enclosed frame 7 can fix the orientation structure of the fiber in time, prevent the fiber from thermally shrinking and sticking in subsequent processes, ensure the dimensional stability and loose state of the fiber, further ensure product quality, reduce the defect rate, and improve production efficiency. The molecular chains of the fiber are in an oriented state, and the cooling structure can quickly reduce the temperature of the fiber, so that the orientation structure of the molecular chains is "frozen", just like fixing the already arranged molecular chains with low temperature, preventing the molecular chains from returning to the original disordered state in subsequent processes, thereby maintaining the high strength and modulus of the fiber and other excellent properties.

[0023] In one aspect of this embodiment, throughout the process, the connecting transmission mechanism drives the rotating roller 4 to rotate. The motor 18 fixed on one side of the mounting plate 17 outputs power to drive the pulley 19 to rotate. Since a belt 20 is wound around every three pulleys 19, the motor 18 drives one of the pulleys 19. Through the belt 20, the three pulleys 19 in the mounting groove 16 can be driven simultaneously, thereby driving the turntable 3 and the rotating roller 4 to rotate, so that the fiber can run continuously and stably in the device, completing the integrated production process of heating, stretching and cooling.

[0024] In one aspect of this embodiment, there are four bases 21, which are respectively arranged at the four corners of the bottom of the mounting bracket 1 to support the device. When it is necessary to move the device, the handle 22 can be used to move the device more conveniently.

[0025] The working principle of this utility model is as follows: In use, the polyethylene fiber enters the mounting frame 1 and moves around the three rotating rollers 4 within the first closed frame 5. A hot air blower 6 blows hot air into the first closed frame 5 to heat the fiber, enhancing the mobility of the fiber molecular chains and making it softer and easier to stretch. Simultaneously, a temperature sensor 9 within the first closed frame 5 monitors the temperature in real time to ensure the heating process is within a suitable temperature range, guaranteeing the fiber's stretchability and uniform quality. Then, after exiting the first closed frame 5, the fiber passes around the moving plate 12. The adjusting roller 13 on one side is driven by the electric slide rail 10 to move the moving plate 12 up and down through the slider 11, thereby realizing the up and down movement of the adjusting roller 13 to stretch the fiber. By changing the position of the adjusting roller 13, the degree of fiber stretching can be precisely controlled, improving fiber strength and modulus, and controlling fiber diameter and dimensional accuracy. The stretched fiber enters the second closed frame 7. The three rotating rollers 4 inside the second closed frame 7 move around, and the cold air blower 8 blows cold air into the second closed frame 7 to quickly cool the fiber. All electrical equipment in this scheme is powered by an external power source.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A heating and drawing device for polyethylene fiber production, comprising a mounting frame (1), a heating and drawing refrigeration integrated mechanism and a connecting and conducting mechanism, characterized in that: The heating stretching refrigeration integrated mechanism includes a limiting groove (2), the inside of the limiting groove (2) is provided with a rotating disc (3), one side of the rotating disc (3) is fixedly connected with a rotating roller (4), the inner side of the mounting frame (1) is fixedly connected with a first closed frame (5), one side of the first closed frame (5) is fixedly installed with a hot air fan (6), the inner side of the mounting frame (1) is fixedly connected with a second closed frame (7), one side of the second closed frame (7) is fixedly installed with a cold air fan (8), the inner side of the first closed frame (5) and the second closed frame (7) is fixedly installed with a temperature sensor (9), the inside of the mounting frame (1) is provided with an electric sliding rail (10), the inside of the electric sliding rail (10) is provided with a sliding block (11), one side of the sliding block (11) is fixedly connected with a moving plate (12), one side of the moving plate (12) is rotatably connected with an adjusting roller (13).

2. The heating and drawing apparatus for polyethylene fiber production according to claim 1, wherein: The rotating disc (3) is slidably connected with the limiting groove (2), and the sliding block (11) is slidably connected with the electric sliding rail (10).

3. The heating and drawing apparatus for polyethylene fiber production according to claim 1, wherein: The first closed frame (5) and the second closed frame (7) are fixed on both sides of the inner side of the mounting frame (1), and the limiting groove (2) is arranged in the inside of the mounting frame (1).

4. The heating and drawing apparatus for polyethylene fiber production according to claim 1, wherein: One end of the rotating roller (4) is fixedly connected with a first limiting plate (14), and one end of the adjusting roller (13) is fixedly connected with a second limiting plate (15).

5. The heating and drawing apparatus for polyethylene fiber production according to claim 1, wherein: The connecting and conducting mechanism includes a mounting groove (16), the inside of the mounting groove (16) is fixedly connected with a mounting plate (17), one side of the mounting plate (17) is fixedly installed with a motor (18), the output end of the motor (18) is fixedly connected with a belt pulley (19), the inside of the belt pulley (19) is drivingly connected with a belt (20), and the belt pulley (19) is fixedly connected with the rotating disc (3).

6. The heating and drawing apparatus for polyethylene fiber production according to claim 5, wherein: The belt pulley (19) is arranged in the inside of the mounting groove (16), and the mounting groove (16) is arranged in the inside of the mounting frame (1).

7. The heating and drawing apparatus for polyethylene fiber production according to claim 1, wherein: The lower side of the mounting frame (1) is fixedly connected with a base (21), and the two sides of the mounting frame (1) are fixedly connected with handles (22).

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