Control device for improving fiber winding tension stability
By introducing a curved rod elastic system and a secondary magnetic powder tension mechanism into the fiber wrapping device, combining parameter speed regulation and tension sensors, the problems of tension fluctuations and wear during fiber wrapping are solved, high-precision tension control and stability are achieved, and product quality is improved.
Patent Information
- Application Number
- CN202422442946.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-10-10
AI Technical Summary
The prior art has problems of tension fluctuations, friction caused by fiber wear and yarn breakage during fiber wrapping, and it is difficult to achieve high-precision tension stability control.
The curved rod elastic system and the secondary magnetic powder tension mechanism are adopted, combined with parameter speed regulation and tension sensors, and precise tension control is achieved by adjusting the curved rod length and the excitation current of the magnetic powder clutch, reducing the yarn discharge tension of the electronic tensioner, and adding an elastic system to key parts to ensure mechanical strength.
It effectively reduces fiber wear and yarn breakage, improves tension stability and precision control during fiber wrapping, and ensures product quality.
Smart Images
Figure CN223073672U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fiber winding, and particularly relates to a control device for improving the stability of fiber winding tension. Background Art
[0002] Tension control is an automation technology widely used in fields such as manufacturing, fiber winding, textile, printing, packaging, and transmission. The accuracy of tension control determines the quality of products. In the winding process, the yarn feeding mechanism is a key part of the tension control system, and its working state will perform forward / backward electrification and braking according to the requirements of the tension magnitude. For equipment with little speed change and a constant target tension, the traditional PID control algorithm can usually obtain good control effects. The PID control algorithm is a feedback loop control algorithm widely used in industrial control systems. It calculates control commands based on the error of the controlled object and adjusts the system. However, with the complexity and diversification of production processes, the processing quality requirements of products are getting higher and higher. Therefore, the tension control accuracy is also improved. At this time, the traditional PID can no longer meet the processing requirements. Therefore, at present, it is necessary to find a suitable method to effectively solve the problems such as tension fluctuations caused by unpredictable problems such as on-site vibration, noise interference, and friction during the winding process in the actual tension control system. And during the winding process of existing composite materials, the large tension wears the fibers, causing yarn breakage, as well as the precision control of tension stability. Summary of the Utility Model
[0003] In view of this, the utility model aims to provide a control device for improving the stability of fiber winding tension, so as to solve the problems of fiber wear caused by large tension during the winding process of existing composite materials, resulting in yarn breakage, as well as the precision control of tension stability and external interference problems.
[0004] To achieve the above object, the utility model adopts the following technical solutions:
[0005] A control device for improving the stability of fiber winding tension, comprising a base, a workbench, a support frame, a yarn spreading roller, a secondary magnetic powder tension mechanism, and a curved rod elastic force system. The support frame is installed on the base, the workbench is connected to the support frame, a connecting seat is installed at the top of the support frame, a curved rod elastic force system is installed on one side of the connecting seat, and a yarn spreading roller is installed on the other side.
[0006] Furthermore, a tension sensor is installed on one side of the workbench close to the secondary magnetic powder tension mechanism.
[0007] Furthermore, the curved rod elastic force system includes a curved rod and a curved rod spring. Two curved rods are installed on the connecting seat, and a curved rod spring is installed between the two curved rods.
[0008] Furthermore, a yarn take-up limiting component is installed at the top of the support frame.
[0009] Furthermore, a number of threaded holes are evenly distributed at the bottom of the base.
[0010] Furthermore, the support frame is connected to the base by fixing bolts.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] In the present utility model, a curved rod elastic force system is added in front of the yarn spreading roller. Through parameter speed regulation and increasing the length of the curved rod, the contact point between the yarn spreading roller and the fiber is adjusted by the curved rod. Tension testing is carried out at the yarn outlet end, and the length of the curved rod is adjusted until the yarn outlet tension matches the digital display tension. At the same time, the yarn outlet tension of the electronic tensioner is reduced, and the secondary magnetic powder tension is increased. An elastic force system is added at the tail end of the curved rod to test whether there is a loose yarn state in the circumferential direction, longitudinal direction, straight section of the cylinder body, and elliptical section of the head during the winding process. The change in the tension value is not more than ±5N, ensuring the quality of the production process; at the same time, the welding reinforcement of the curved rod is increased to ensure the strength of the mechanical mechanism. Description of the Drawings
[0013] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:
[0014] Figure 1 is a schematic structural diagram of a control device for improving the stability of fiber winding tension according to the present utility model.
[0015] 1 - Base, 2 - Workbench, 3 - Support frame, 4 - Curved rod, 5 - Curved rod spring, 6 - Yarn take-up limiting component, 7 - Yarn spreading roller, 8 - Tension sensor, 9 - Secondary magnetic powder tension mechanism. Detailed Embodiments
[0016] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other. The described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0017] Detailed Embodiment 1: Refer to Figure 1Description of this embodiment: A control device for improving the stability of fiber winding tension includes a base 1, a workbench 2, a support frame 3, a yarn spreading roller 7, a secondary magnetic powder tension mechanism 9, and a curved rod elastic force system. The support frame 3 is installed on the base 1, the workbench 2 is connected to the support frame 3, a connecting seat is installed at the top of the support frame 3, a curved rod elastic force system is installed on one side of the connecting seat, and a yarn spreading roller 7 is installed on the other side. A tension sensor 8 is installed on the workbench 2 near the secondary magnetic powder tension mechanism 9. The curved rod elastic force system includes a curved rod 4 and a curved rod spring 5. Two curved rods 4 are installed on the connecting seat, and a curved rod spring 5 is installed between the two curved rods 4. A yarn receiving limit component 6 is installed at the top of the support frame 3. A number of threaded holes are evenly distributed at the bottom of the base 1. The support frame 3 is connected to the base 1 through fixing bolts.
[0018] Add a curved rod elastic force system in front of the yarn spreading roller 7. Through parameter speed regulation, increase the length of the curved rod 4. Adjust the contact point between the yarn spreading roller 7 and the fiber through the curved rod 4. Conduct a tension test at the yarn outlet end. Adjust the length of the curved rod 4 until the yarn outlet tension matches the digital display tension. Add a curved rod spring 5 at the end of the curved rod 4. During the winding process test, check whether there is a loose yarn state in the circumferential direction, longitudinal direction, straight section of the cylinder body, and elliptical section of the head. Test that the change in the tension value does not exceed ±5N.
[0019] Secondary magnetic powder tension mechanism 9. Secondary magnetic powder tension usually refers to the situation where a magnetic powder clutch or a magnetic powder brake is used for secondary tension control in the winding processing industry. Magnetic powder clutches and magnetic powder brakes convey torque based on the electromagnetic principle and using magnetic powder. The conveyed torque has a basically linear relationship with the exciting current. Therefore, by simply changing the magnitude of the exciting current, the magnitude of the torque can be easily controlled. In secondary tension control, usually two sets of magnetic powder clutches or brakes work together to achieve more precise tension control. The first stage is usually responsible for providing the basic tension, while the second stage is used for fine-tuning to achieve a more precise tension control effect. This control method is very common in high-precision unwinding and winding applications, such as the printing, papermaking, and textile industries. The main advantages of magnetic powder clutches and brakes include high-precision torque control, excellent durability, super-stable constant torque characteristics, continuous sliding operation, smooth connection without impact, and suitability for high-frequency operation. These characteristics enable the magnetic powder tension control system to achieve precise tension control, ensure that the tension of the coil remains constant during the processing, and thus guarantee the product quality. By adjusting the exciting current in the magnetic powder clutch or brake, the strength of the magnetic field can be controlled, and then the transmission of torque can be precisely adjusted to achieve precise tension control. This control system can set the target tension value and achieve the expected tension control effect by real-time monitoring and adjusting the current input to the coil.
[0020] A curved rod elastic force system is added in front of the yarn spreading roller 7. Through parameter speed regulation, the length of the curved rod 4 is increased. The contact point between the yarn spreading roller and the fiber is adjusted through the curved rod. Tension testing is carried out at the yarn outlet end, and the length of the curved rod 4 is adjusted until the yarn outlet tension matches the digital display tension. At the same time, the yarn outlet tension of the electronic tensioner is reduced, and the secondary magnetic powder tension is increased. An elastic force system is added at the end of the curved rod. During the winding process, it is tested whether there is a loose yarn state in the circumferential direction, longitudinal direction, straight section of the cylinder body, and elliptical section of the head. The change in the tension value is tested not to exceed ±5N to ensure the production process quality. At the same time, the welding reinforcement of the curved rod is increased to ensure the strength of the mechanical mechanism, solving the problems of fiber wear caused by large tension during the winding of existing composite materials, resulting in yarn breakage, as well as the precision control of tension stability and external interference.
[0021] Specific Embodiment 2: At the beginning stage of yarn spreading in this embodiment, the number of winding yarn bobbins is 16. The winding roller is subjected to the pulling force from the winding material and continuously rotates and pays off under its action. In the actual fiber winding production process, the pulling force of the fiber comes from the rotation of the core mold. Generally, between the unwinding roller and the core mold, there are 3 - 5 guide rollers to make the fiber winding move smoothly. When the fiber is drawn out from the yarn bobbin and passes through the guide roller and the dipping tank, the initial system tension is adjusted to 10 - 50N per bobbin. The diameter of the tension roller is 50 - 150mm, and the width of the contact surface between the tension roller and the fiber is 30 - 80mm. There is a difference between the manually measured tension and the display of the equipment tension system. A curved rod elastic force system needs to be added in front of the yarn spreading roller 7, and the length of the curved rod 4 is adjusted to 100 - 200mm until the yarn outlet tension matches the digital display tension, and the tension difference ≤5N. During the winding process of the fiber, there is a speed difference between the winding wheel and the yarn feeding wheel. The linear speeds at both ends of the fiber will be different during the winding process, so the fiber deforms to generate tension. During the winding process, the outer diameter of the winding is constantly changing, and in order to ensure the flatness of the yarn winding, the winding position needs to move horizontally back and forth relative to the winding wheel. The measured tension of the fiber changes with the angle with the axis of the shell. An elastic force system is added at the end of the curved rod 4. During the winding process, it is tested whether there is a loose yarn state in the circumferential direction, longitudinal direction, straight section of the cylinder body, and elliptical section of the head. The change in the tension value is tested not to exceed +5~-5N.
[0022] Specific Embodiment 3: The difference between this embodiment and Specific Embodiment 2 is that, on the basis of Embodiment 2, a secondary magnetic powder tension mechanism 9 is added, and the ratio of the yarn outlet tension to the secondary magnetic powder tension is adjusted. In principle, the yarn outlet force is reduced to reduce the wear before fiber infiltration, and the set tension value of the secondary magnetic powder tension is increased. The specific steps are as follows:
[0023] Experiment 1: The number of winding yarn bobbins is 16. The yarn outlet tension of the electronic tensioner is set to 20N per bobbin. The secondary magnetic powder tension is increased until the yarn outlet tension matches the digital display tension, and the tension difference ≤5N;
[0024] Test 2: Number of wound yarn balls: 16. The yarn outlet tension of the electronic tensioner is set to 10 N per single ball. Increase the secondary magnetic powder tension until the yarn outlet tension matches the digital display tension, with the tension difference ≤ 5 N.
[0025] Test 2: Number of wound yarn balls: 16. The yarn outlet tension of the electronic tensioner is set to 5 N per single ball. Increase the secondary magnetic powder tension until the yarn outlet tension matches the digital display tension, with the tension difference ≤ 5 N.
[0026] The embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. According to the content of this specification, many modifications and variations can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model.
Claims
1. A control device for improving the stability of fiber winding tension, characterized in that: It includes a base (1), a workbench (2), a support frame (3), a yarn spreading roller (7), a secondary magnetic powder tension mechanism (9) and a curved lever elastic system. The support frame (3) is installed on the base (1), the workbench (2) is connected to the support frame (3), a connecting seat is installed at the top of the support frame (3), a curved lever elastic system is installed on one side of the connecting seat, and a yarn spreading roller (7) is installed on the other side.
2. The control device for improving the stability of fiber winding tension according to claim 1, wherein: A tension sensor (8) is installed on one side of the workbench (2) close to the secondary magnetic powder tension mechanism (9).
3. The control device for improving the stability of fiber winding tension according to claim 1, characterized in that: The curved lever elastic system includes a curved lever (4) and a curved lever spring (5). Two curved levers (4) are installed on the connecting seat, and a curved lever spring (5) is installed between the two curved levers (4).
4. The control device for improving the stability of fiber winding tension according to claim 1, characterized in that: A yarn receiving limit component (6) is installed at the top of the support frame (3).
5. The control device for improving the stability of fiber winding tension according to claim 1, characterized in that: A number of threaded holes are evenly distributed at the bottom of the base (1).
6. The control device for improving the stability of fiber winding tension according to claim 1, characterized in that: The support frame (3) is connected to the base (1) through fixing bolts.