Synchronous yarn tension adjusting device with heat dissipation structure
Patent Information
- Application Number
- CN202522078783.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-09-26
AI Technical Summary
[0004]针对现有技术存在的不足，本实用新型的目的在于提供一种带散热结构的同步式纱线张力调节装置，解决现有纱线张力调节装置中同步电机散热不良、同步轮在压紧轴承挤压作用下易变形以及长期使用后精度下降的技术问题
与现有技术相比，该带散热结构的同步式纱线张力调节装置，通过在同步轮内部设置风叶结构，配合风叶片的放射状分布和倾斜角度设计，在同步轮转动过程中形成有效的散热循环，显著提高了设备的散热效率，有效解决了传统纱线张力调节装置在高速长时间运行中因温度过高而导致的性能下降和设备损坏问题；同时，环形凸缘的梯形截面结构增强了同步轮在高速转动时的结构稳定性，铝合金材质结合防静电陶瓷喷涂层不仅减轻了设备重量、提高了导热性能，还有效防止了静电对纱线质量的影响，延长了设备使用寿命；配合霍尔传感器的实时张力检测和自动调节功能，实现了精确的张力控制。
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Figure CN224768168U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of textile equipment technology, and in particular to a synchronous yarn tension regulating device with a heat dissipation structure. Background Technology
[0002] In the textile industry, yarn tension regulation and conveying control are core technologies affecting the quality of textile products and production efficiency. As the modern textile industry develops towards high speed and automation, the performance requirements for yarn tension regulation devices are becoming increasingly stringent. These devices not only need precise tension control capabilities but also need to maintain stable operation under prolonged high-speed running conditions.
[0003] Traditional synchronous yarn tension regulating devices face numerous technical challenges in practical applications. Firstly, during high-speed operation, existing equipment generates significant heat from core rotating components such as the synchronous pulley. The lack of an effective heat dissipation structure leads to a continuous rise in equipment temperature, easily causing motor overheating and malfunctions, resulting in equipment shutdowns and severely impacting yarn quality and production stability. Furthermore, additional cooling devices are typically required, leading to resource waste. Secondly, the relatively simple design of existing synchronous pulleys makes them prone to vibration and deformation under high-speed rotational loads and lateral forces, affecting the transmission accuracy and lifespan of the yarn tension regulating device. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a synchronous yarn tension regulating device with a heat dissipation structure, thereby solving the technical problems of poor heat dissipation of the synchronous motor, easy deformation of the synchronous wheel under the squeezing action of the pressure bearing, and decreased accuracy after long-term use in existing yarn tension regulating devices.
[0005] A synchronous yarn tension regulating device with a heat dissipation structure includes a housing and a tension sensing device. A synchronous wheel is disposed inside the housing, and a synchronous motor and a human-machine interface are disposed outside the housing to drive the synchronous wheel's rotation. A Hall sensor for detecting tension is disposed inside the tension sensing device. The Hall sensor has a threshold value, which is set via the human-machine interface. A fan blade structure is disposed inside the synchronous wheel, and an annular flange is disposed on the outer edge of the synchronous wheel. The fan blade structure includes multiple fan blades that are radially distributed along the radial direction of the synchronous wheel. The annular flange is disposed on the outer circumferential surface of the synchronous wheel and is continuously arranged along the circumferential direction of the synchronous wheel.
[0006] As a further description of the above technical solution: The fan blade structure is located in the central area of the inner cavity of the synchronous pulley, extending radially outward from the hub of the synchronous pulley. The fan blade and the synchronous pulley body are integrally molded, ensuring structural strength and dynamic balance performance. When the synchronous pulley rotates, the airflow generated by the fan blade blows towards the motor, forming a directional airflow circulation. The airflow directly impacts the heat dissipation surface of the synchronous motor, carrying away the heat generated during motor operation, effectively reducing the motor's operating temperature, preventing motor overheating failures caused by prolonged high-speed operation, and ensuring the stability and reliability of the entire transmission system. At the same time, the annular flange ensures the structural stability of the synchronous pulley under high-speed rotation and lateral loads.
[0007] As a further description of the above technical solution: the number of wind blades is 4, and the wind blades are inclined at an angle relative to the axis of the synchronous wheel.
[0008] The fan blade structure is located in the central area of the synchronous pulley's inner cavity. The four fan blades are evenly distributed at 90° inside the synchronous pulley, ensuring dynamic balance during rotation and uniform heat dissipation. Each fan blade has an inclination angle of 15°-25° relative to the synchronous pulley's axis, preferably 20°. This inclination angle design allows the fan blades to generate a composite airflow of axial and radial directions during rotation, improving heat dissipation efficiency.
[0009] As a further description of the above technical solution: the edge of the wind blade is provided with reinforcing ribs to enhance the structural rigidity.
[0010] Reinforcing ribs are installed at the leading and trailing edges of each blade, forming a longitudinal rib structure. The reinforcing ribs are continuously installed along the length of the blade, extending from the root to the tip, forming an integral rigid frame. The leading edge reinforcing ribs mainly bear the impact load of the airflow, while the trailing edge reinforcing ribs prevent the blades from vibrating and deforming during high-speed rotation.
[0011] As a further description of the above technical solution: the synchronous pulley is made of aluminum alloy, and the synchronous pulley is provided with micro square mesh pattern, and the micro square mesh pattern is provided with an anti-static ceramic spray coating.
[0012] The synchronous pulley is made of aluminum alloy, which has excellent thermal conductivity, effectively reducing the weight of rotating parts. The micro-grid pattern covers the entire working surface of the synchronous pulley, improving the coefficient of friction. The anti-static ceramic coating uses alumina-based ceramic material, which has both anti-static function and maintains a certain degree of conductivity, preventing static electricity accumulation, while also increasing the surface wear resistance.
[0013] As a further description of the above technical solution: the cross-section of the annular flange has a trapezoidal structure; The annular flange is located at the outermost circumference of the synchronous pulley, forming a continuous annular reinforcing structure. Its inner diameter is tightly integrated with the outer diameter of the synchronous pulley. The trapezoidal structure design takes into account both structural strength and weight control. The wider root provides sufficient connection strength, while the narrower top reduces weight and rotational inertia.
[0014] As a further description of the above technical solution: the tension sensing device is provided with an elastic hook for clamping the yarn.
[0015] As a further description of the above technical solution: the housing is provided with a clamping bearing and an air valve device. The clamping bearing has two independent control channels, each corresponding to the conveying control of a yarn. The air valve device includes an inflated state and a deflated state. When the air valve device is in the inflated state, the clamping bearing is away from the synchronous pulley. When the air valve device is in the deflated state, the clamping bearing is pressed against the synchronous pulley.
[0016] As a further description of the above technical solution: a limiting rod is provided inside the housing, and the clamping bearing is located between the limiting rod and the synchronous wheel.
[0017] As a further description of the above technical solution: the side of the housing away from the tension sensing device is provided with a yarn breakage device and an alarm, and the side of the tension sensing device is provided with two yarn-blocking discs.
[0018] As a further description of the above technical solution: the threshold range of the Hall sensor is 0 to 300, and the preferred threshold is 120, when the quality of the produced yarn is the best. The Hall sensor 6 has a maximum tension value. When the detected tension exceeds the maximum value, a shutdown alarm signal is output to the human-machine interface. The human-machine interface displays the yarn inlet tension too tight alarm code and controls the equipment to stop.
[0019] This utility model has the following beneficial effects: Compared with existing technologies, this synchronous yarn tension regulating device with a heat dissipation structure, by incorporating a fan blade structure inside the synchronous pulley, and combining the radial distribution and tilt angle design of the fan blades, forms an effective heat dissipation cycle during the rotation of the synchronous pulley. This significantly improves the heat dissipation efficiency of the device and effectively solves the problem of performance degradation and equipment damage caused by excessive temperature during high-speed, long-term operation of traditional yarn tension regulating devices. At the same time, the trapezoidal cross-section structure of the annular flange enhances the structural stability of the synchronous pulley during high-speed rotation. The aluminum alloy material combined with the anti-static ceramic coating not only reduces the weight of the device and improves thermal conductivity, but also effectively prevents the impact of static electricity on yarn quality and extends the service life of the device. Combined with the real-time tension detection and automatic adjustment function of the Hall sensor, precise tension control is achieved. Attached Figure Description
[0020] Figure 1This is a three-dimensional schematic diagram of the overall structure of a synchronous yarn tension regulating device with a heat dissipation structure proposed in this utility model. Figure 2 This is a three-dimensional structural diagram of the shell of a synchronous yarn tension regulating device with a heat dissipation structure proposed in this utility model in the open state. Figure 3 This is a three-dimensional schematic diagram of the overall structure of the synchronous wheel of a synchronous yarn tension regulating device with heat dissipation structure proposed in this utility model. Figure 4 This is a three-dimensional sectional view of the synchronous wheel of a synchronous yarn tension regulating device with a heat dissipation structure proposed in this utility model.
[0021] Legend: 1. Housing; 2. Tension sensing device; 3. Synchronous pulley; 4. Synchronous motor; 5. Human-machine interface; 6. Hall sensor; 7. Elastic hook; 8. Pressurizing bearing; 9. Air valve device; 10. Limiting rod; 11. Thread breakage device; 12. Alarm; 13. Yarn baffle; 14. Fan blade structure; 15. Annular flange; 16. Fan blade. Detailed Implementation
[0022] 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.
[0023] Reference Figure 1-4 This utility model provides a synchronous yarn tension regulating device with a heat dissipation structure, comprising a housing 1 and a tension sensing device 2. A synchronous wheel 3 is disposed inside the housing 1, and a synchronous motor 4 and a human-machine interface 5 are disposed outside the housing 1 to drive the synchronous wheel 3 to rotate. By setting up the synchronous motor 4 and the human-machine interface 5, the operator can input parameters through the human-machine interface 5, thereby causing the synchronous motor 4 to drive the synchronous wheel 3 to reach a specified speed, achieving precise tension control.
[0024] The synchronous pulley 3 has a fan blade structure 14 inside, and an annular flange 15 on its outer edge. The fan blade structure 14 includes multiple fan blades 16. In this specific implementation, there are four fan blades 16, which are radially distributed along the radial direction of the synchronous pulley 3 and evenly distributed at 90° angles inside the synchronous pulley 3, ensuring dynamic balance and uniform heat dissipation during rotation. The fan blade structure 14 is located in the central area of the inner cavity of the synchronous pulley 3, extending radially outward from the hub of the synchronous pulley 3. The fan blades 16 and the synchronous pulley 3 body are integrally formed, ensuring structural strength and dynamic balance performance.
[0025] Furthermore, the fan blade 16 is inclined at an angle relative to the axial direction of the synchronous pulley 3, specifically between 15° and 25°, preferably 20°. This inclined angle design allows the fan blade 16 to generate a combined axial and radial airflow when rotating. When the synchronous pulley 3 rotates, the airflow generated by the fan blade 16 blows towards the motor, forming a directional airflow circulation. The airflow directly impacts the heat dissipation surface of the synchronous motor 4, carrying away the heat generated during motor operation, effectively reducing the motor's operating temperature, preventing motor overheating failures caused by prolonged high-speed operation, and ensuring the stability and reliability of the entire transmission system.
[0026] To enhance structural rigidity, reinforcing ribs are provided along the edges of the blades 16. These ribs are located at the leading and trailing edges of each blade 16, forming a longitudinal rib structure. The ribs are continuously arranged along the length of the blade 16, extending from the root to the tip, forming an integral rigid frame. The leading edge reinforcing ribs primarily bear the impact load of the airflow, while the trailing edge reinforcing ribs prevent vibration deformation of the blades 16 during high-speed rotation, ensuring the stability of the entire blade structure 14 under high-speed operation.
[0027] An annular flange 15 is disposed on the outer circumferential surface of the synchronous pulley 3, and the annular flange 15 is continuously disposed along the circumferential direction of the synchronous pulley 3. The annular flange 15 is located at the outermost circumferential edge of the synchronous pulley 3, forming a continuous annular reinforcing structure, the inner diameter of which is tightly connected to the outer diameter of the synchronous pulley 3. The cross-section of the annular flange 15 is trapezoidal. The trapezoidal structure design takes into account both structural strength and weight control. The wider root provides sufficient connection strength, while the narrower top reduces weight and rotational inertia, ensuring the structural stability of the synchronous pulley 3 under high-speed rotation and lateral loads.
[0028] Synchronous pulley 3 is made of aluminum alloy, which has excellent thermal conductivity, effectively reducing the weight of rotating parts and improving heat dissipation efficiency. Synchronous pulley 3 features a micro-grid pattern covering its entire working surface, increasing the coefficient of friction when in contact with the yarn and ensuring reliable transmission. The micro-grid pattern is coated with an anti-static ceramic layer made of alumina-based ceramic material, which provides both anti-static properties and maintains a certain degree of conductivity, preventing static electricity buildup from affecting yarn quality. Simultaneously, the ceramic coating improves the wear resistance of synchronous pulley 3, extending its service life.
[0029] The tension sensing device 2 is equipped with a Hall sensor 6 for detecting tension. The Hall sensor 6 has a threshold value, which is set via the human-machine interface 5. The threshold value range of the Hall sensor 6 is 0 to 300. By using the Hall sensor 6 for tension detection, the tension of the yarn can be monitored in real time. The human-machine interface 5 can set the maximum tension value. When the detected yarn tension exceeds this maximum value, the conveyor immediately sends an alarm stop signal to the equipment. The human-machine interface 5 displays an alarm code indicating excessive tension at the yarn inlet, effectively preventing yarn breakage and equipment damage due to excessive tension, and protecting the yarn structure and strength. Under normal operating conditions, when the yarn tension is within the set range, the synchronous pulley 3 operates stably at a preset speed, maintaining the tension within a suitable range and ensuring yarn quality and production stability.
[0030] Furthermore, the tension sensing device 2 is equipped with an elastic hook 7 for clamping the yarn. The elastic hook 7 can achieve stable clamping of the yarn, avoiding the damage to the yarn that may be caused by traditional mechanical clamping, and the elastic hook 7 can be quickly adjusted according to the tension requirements of the yarn to adapt to yarns of different thicknesses and materials.
[0031] The housing 1 contains a clamping bearing 8 and an air valve device 9. The clamping bearing 8 has two independent control channels, each corresponding to the conveying control of one yarn. The air valve device 9 has an inflated state and a deflated state. When the air valve device 9 is in the inflated state, the clamping bearing 8 is away from the synchronous pulley 3; when the air valve device 9 is in the deflated state, the clamping bearing 8 is pressed against the synchronous pulley 3. The clamping bearing 8 has two independent control channels, each corresponding to the conveying control of one yarn. By controlling the inflated and deflated states of the air valve device 9, the contact between the clamping bearing 8 and the synchronous pulley 3 can be dynamically adjusted, thereby achieving precise control of the transmission system.
[0032] Furthermore, a limiting rod 10 is provided inside the housing 1, and the clamping bearing 8 is located between the limiting rod 10 and the synchronous pulley 3. Through the limiting action of the limiting rod 10, the clamping bearing 8 moves more stably under the control of the air valve device 9, reducing displacement caused by vibration or impact and improving the stability of the entire transmission system.
[0033] On the side of the housing 1 away from the tension sensing device 2, there is a yarn breakage device 11 and an alarm 12. When the yarn tension exceeds the maximum threshold value of the Hall sensor 6, the yarn breakage device 11 can quickly cut the yarn to avoid yarn breakage or equipment damage caused by excessive tension, while the timely alarm function of the alarm 12 can remind the operator to take measures to reduce defective products.
[0034] Two yarn-blocking discs 13 are provided on one side of the tension sensing device 2. By setting the yarn-blocking discs 13, problems such as knotting or tangling of the yarn can be prevented during the tightening process, thus protecting the tension sensing device 2 and ensuring working efficiency.
[0035] Workflow Description: This device can meet the needs of a small number of applications requiring the time-sharing of two yarns. The feeding yarn is selected by the air valve device 9 within the support of the pressure bearing 8 at the equipment end. The tension sensor 2 can select the yarn to be detected or the primary yarn as needed. Alternatively, an additional tension sensor 2 can be added to detect the two elastic yarns separately. The operator sets the threshold parameter of the Hall sensor 6 via the human-machine interface 5 (a setting of 120 is recommended for optimal yarn quality). The elastic yarns are then guided sequentially by the yarn-blocking disc 13, stably clamped by the elastic hook 7, enter the detection area of the tension sensor 2, and then pass through the pre-tensioning device.
[0036] When the synchronous motor 4 drives the synchronous pulley 3 to rotate, the Hall sensor 6 detects the tension of the corresponding yarn. When a yarn needs to be fed: the pressure bearing 8 of the channel containing that yarn is in a deflated state, and the pressure bearing 8 presses against the synchronous pulley 3, increasing the transmission force to ensure normal yarn feeding. When a yarn does not need to be fed: the support of the pressure bearing 8 of the corresponding channel is in a pneumatic state, and the pressure bearing 8 moves away from the synchronous pulley 3 to avoid unnecessary yarn traction. The two channels can be controlled independently: the two channels can be adjusted independently according to the tension detection results of their respective yarns, realizing precise control of multiple yarns.
[0037] Simultaneously, during the rotation of the synchronous pulley 3, the four fan blades 16 in the internal fan structure 14 generate a combined axial and radial airflow, forming an effective heat dissipation circulation through a 20° tilt angle design, maintaining stable equipment temperature. When abnormal tension exceeding the limit is detected, the yarn breaking device 11 immediately activates to cut the yarn, and the alarm 12 simultaneously sounds an alarm, ensuring equipment and operational safety. Under normal operating conditions, the annular flange 15 ensures the structural stability of the synchronous pulley 3, and the anti-static ceramic coating prevents static electricity accumulation, enabling the entire system to operate stably for extended periods.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.
Claims
1. A synchronous yarn tension regulating device with a heat dissipation structure, characterized in that: The device includes a housing (1) and a tension sensing device (2). The housing (1) contains a synchronous wheel (3). The housing (1) contains a synchronous motor (4) for driving the synchronous wheel (3) to rotate and a human-machine interface (5). The tension sensing device (2) contains a Hall sensor (6) for detecting the tension. The Hall sensor (6) has a threshold value and the threshold value of the Hall sensor (6) is set by the human-machine interface (5). The synchronous wheel (3) contains a fan blade structure (14). The outer edge of the synchronous wheel (3) is provided with an annular flange (15). The fan blade structure (14) includes multiple fan blades (16). The fan blades (16) are radially distributed along the radial direction of the synchronous wheel (3). The annular flange (15) is set on the outer circumferential surface of the synchronous wheel (3) and is continuously arranged along the circumferential direction of the synchronous wheel (3).
2. The synchronous yarn tension regulating device with heat dissipation structure according to claim 1, characterized in that: The number of wind blades (16) is 4, and the wind blades (16) are inclined at an angle relative to the axial direction of the synchronous wheel (3).
3. The synchronous yarn tension regulating device with heat dissipation structure according to claim 1, characterized in that: The wind blade (16) is provided with reinforcing ribs at the edge to enhance the structural rigidity.
4. The synchronous yarn tension regulating device with heat dissipation structure according to claim 1, characterized in that: The synchronous pulley (3) is made of aluminum alloy and has a micro grid pattern. The micro grid pattern has an anti-static ceramic coating.
5. A synchronous yarn tension regulating device with a heat dissipation structure according to claim 1, characterized in that: The cross-section of the annular flange (15) is trapezoidal.
6. The synchronous yarn tension regulating device with heat dissipation structure according to claim 1, characterized in that: The tension sensing device (2) is provided with an elastic hook (7) for clamping the yarn.
7. A synchronous yarn tension regulating device with a heat dissipation structure according to claim 1, characterized in that: The housing (1) is provided with a clamping bearing (8) and an air valve device (9). The clamping bearing (8) has two independent control channels, each corresponding to the conveying control of a yarn. The air valve device (9) includes an inflated state and a deflated state. When the air valve device (9) is in the inflated state, the clamping bearing (8) is away from the synchronous pulley (3). When the air valve device (9) is in the deflated state, the clamping bearing (8) is pressed against the synchronous pulley (3).
8. A synchronous yarn tension regulating device with a heat dissipation structure according to claim 7, characterized in that: The housing (1) is provided with a limiting rod (10), and the clamping bearing (8) is located between the limiting rod (10) and the synchronous wheel (3).
9. A synchronous yarn tension regulating device with a heat dissipation structure according to claim 1, characterized in that: The housing (1) is provided with a yarn breakage device (11) and an alarm (12) on the side away from the tension sensing device (2), and two yarn-blocking discs (13) are provided on one side of the tension sensing device (2).
10. A synchronous yarn tension regulating device with a heat dissipation structure according to claim 1, characterized in that: The threshold range of the Hall sensor (6) is 0 to 300.