CN-224212141-U - Closed-loop control double-wheel traction device based on tension sensor feedback

Abstract

The utility model relates to the field of insulated cable processing equipment, and aims to solve the technical problem that in the prior art, a conductor is stretched and deformed due to unstable tension control of a small-diameter conductor cable. The utility model provides a closed-loop control double-wheel traction device based on tension sensor feedback, which is characterized by further comprising a tension sensor guide wheel connected with a tension sensor, wherein the tension sensor is used for detecting cable tension on the tension sensor guide wheel in real time and transmitting a detected cable tension electric signal to a PLC (programmable logic controller), the PLC uses a PID (proportion integration differentiation) control algorithm to calculate and output a control signal to a motor for closed-loop control so as to realize real-time adjustment of motor torque enabling the cable tension to trend towards a set value, and the split wheel is arranged through a deflection angle so that the split wheel and the traction wheel keep a certain deflection angle in the rotation direction, horizontal displacement is ensured to be smoothly transited when the cable is wound on the split wheel, and local stress concentration caused by the traditional fixed guide wheel is avoided.

Inventors

• CHENG ZHIHAO
• FAN XIAOCONG
• JIN YUJIE
• YANG XIAOYUN
• LIU QINYUAN

Assignees

• 上海科辰光电线缆设备有限公司

Dates

Publication Date

20260508

Application Date

20250514

Claims (6)

1. 1. The closed-loop control double-wheel traction device based on the feedback of the tension sensor comprises a frame, a reduction gearbox, an alternating current servo motor and a traction wheel, wherein the reduction gearbox and the alternating current servo motor are arranged on the frame, and the motor provides driving force for the traction wheel through the reduction gearbox.
2. 2. A closed-loop control dual-wheel traction device based on tension sensor feedback as set forth in claim 1, wherein said sensor is a single-axis strain tension sensor mounted at the center of a tension sensor guide wheel.
3. 3. A closed-loop control double-wheel traction device based on tension sensor feedback according to claim 2, wherein the sensor detects tension at a cable outlet on a tension sensor guide wheel in real time.
4. 4. A closed-loop control double-wheel traction device based on tension sensor feedback according to claim 1, 2 or 3, wherein the device further comprises a segment wheel, the segment wheel is composed of at least two independent guide wheels, the winding direction of the guide wheels and the winding direction of the traction wheel are provided with an offset angle alpha, and the calculation formula is tanalpha = segment wheel distance H/segment wheel cable bottom diameter D.
5. 5. A closed-loop control double-wheel traction device based on tension sensor feedback according to claim 4, wherein the traction wheel is parallel to the plane of the machine frame, and the guide wheel of the slicing wheel and the plane of the machine frame are provided with an offset angle alpha.
6. 6. A closed-loop controlled dual-wheel traction device based on tension sensor feedback as recited in claim 4, wherein the number of independent guide wheels of the group of the segment wheels is 2 to 5.

Description

Closed-loop control double-wheel traction device based on tension sensor feedback Technical Field The utility model relates to the field of insulated cable processing equipment, in particular to a closed-loop control double-wheel traction device based on tension sensor feedback. Background The dance wheel is a control device for cable tension in a traditional cable production line in the prior art. For example, the chinese patent application CN220222987U published by 12 months 22 of 2023 discloses a multi-purpose dance wheel device for producing optical cable, as shown in fig. 1, a dance wheel A3 and a stay wire displacement sensor A4 are connected with piston links of a cylinder A6, according to the optical cables with different specifications, the tension of the optical cable is required to be used on an industrial personal computer a10, after the tension is set, the industrial personal computer a10 sends data to a PLC controller A9 through ethernet communication, the PLC controller A9 outputs an analog quantity to a proportional valve A8, the proportional valve A8 controls the angle of a valve according to the analog quantity, controls the size of an air outlet, namely, gives constant tension to the cylinder A6, and the cylinder A6 controls the tension of the dance wheel A3, so that the optical cable with different tension requirements can be adapted. However, when the tension of the conductor is controlled by the dance wheel, the phenomenon of dimensional instability such as excessively high tensile deformation rate of the conductor is easy to occur particularly when the dance wheel is applied to a fine conductor, and the deviation of the sectional area of the conductor is directly caused to be excessively large, so that the critical parameters of the finished product are obviously deteriorated. For example, in the process of using a fine conductor to conduct skin-bubble skin insulation physical foaming, when the existing production process is applied to the fine conductor with the conductor diameter less than or equal to 0.4mm in a high-precision extrusion link, the fluctuation of melt pressure can reach +/-1.5 MPa, so that the stretching deformation rate of the conductor exceeds 3%, and the deviation of the sectional area of the conductor is directly caused to reach +/-5%. The size instability phenomenon causes the degradation of key primary parameters such as characteristic impedance fluctuation (typical value + -5 omega), structural return loss degradation (more than or equal to-30 dB) and the like, and finally leads to the rise of transmission error rate to more than 10-5 orders of magnitude. In addition, tension control is carried out by using mechanical movements of the dance wheel for a long time, and the dance wheel is easy to wear and cause drift. Disclosure of utility model The utility model aims to solve the technical problem that the tension control of a small-diameter conductor cable is unstable to cause the conductor to be stretched and deformed in the prior art, and provides a closed-loop control double-wheel traction device based on tension sensor feedback to improve the product quality of the cable. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a closed-loop control double round draw gear based on tension sensor feedback, includes the frame, sets up reducing gear box and AC servo motor and traction wheel in the frame, the motor provides driving force for the traction wheel through the reducing gear box, the device still includes the tension sensor guide pulley of being connected with tension sensor, tension sensor is used for the cable tension on the real-time detection tension sensor guide pulley and transmits the cable tension signal that detects to the PLC controller, the PLC controller carries out the closed-loop control with PID control algorithm calculation output control signal to motor for realize making the cable tension trend the real-time adjustment of the motor moment of torsion of setting value. Further, the sensor is a uniaxial strain tension sensor arranged at the center of a tension sensor guide wheel. Further, the sensor detects the tension of the cable outlet on the tension sensor guide wheel in real time. Further, the device also comprises a slicing wheel, wherein the slicing wheel consists of at least two independent guide wheels, a deflection angle alpha is arranged between the winding direction of the guide wheels and the winding direction of the traction wheel, and a calculation formula is tan alpha = slicing wheel distance H/slicing wheel cable bottom diameter D. Preferably, the traction wheel is arranged parallel to the plane of the machine frame, and the guide wheel of the slicing wheel and the plane of the machine frame are provided with an offset angle alpha. Preferably, the number of independent guide wheels of the component dividing wheel is 2 to 5. The utility model has t