Production device and production method of paper-wrapped copper stranded wire

Abstract

The invention belongs to the technical field of cable production, and relates to a production device and a production method of a paper-wrapped copper stranded wire. The production device comprises a wrapping device and a control system. A conveying mechanism and a wrapping variable frequency motor are arranged in the wrapping device, the conveying mechanism comprises a paper disc, a tension sensor, a damping motor, a rotating disc, an encoder and a servo motor, the damping motor is installed on a driving shaft of the paper disc, a paper tape is wound on the paper disc, and the paper tape is guided into the copper stranded wire after passing through the rotating disc; the encoder and the servo motor are mounted on the turntable; the tension sensor obtains the actual tension of the paper tape, and the encoder obtains the actual wrapping angle of the paper tape; a camera used for acquiring a wrapping position image is arranged at a paper tape wrapping head, and an actual wrapping result is obtained based on the image; and the control system compares the actual wrapping result with a preset wrapping result, and if the actual wrapping result does not meet the requirement of the preset wrapping result, a regulation and control strategy is started. The problem that wrapping process parameters cannot be adjusted in real time in an existing paper-wrapped copper stranded wire production process is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of cable production, and in particular relates to a production device and a production method for paper-covered copper stranded wire. Background Art

[0002] Currently, the production process for paper-wrapped copper stranded wire suffers from numerous shortcomings. Key process parameters, such as paper tape tension, wrapping pitch, and re-splicing width, rely primarily on manual adjustment based on experience. These rigid process parameters are difficult to adapt to the complex and ever-changing conditions of actual copper stranded wire production. Furthermore, tooling adaptability is poor, and adjusting paper tape tension and the angle of the wrapping head also relies heavily on manual experience. This results in varying paper wrapping dimensions and significant fluctuations in the re-splicing width.

[0003] In addition, there is a serious lag in the detection process. The offline sampling method is used, and it is impossible to obtain key indicator data such as product dimensions and reconnection width in real time, which increases the workload of manual measurement.

[0004] After searching, application number CN201721800192.X discloses a mechanical tension device, which is mainly composed of an insulating tape reel outer diameter tracking wheel, a tension spring system and a friction pair system. The insulating tape reel outer diameter tracking wheel is tightly attached to the outer layer of the insulating tape with appropriate pressure. As the diameter of the insulating tape reel decreases, the angle of the insulating tape reel outer diameter tracking wheel changes and is transmitted to the tension spring, so that the stretching amount of the tension spring becomes smaller, reducing the torque of the friction pair so that it matches the insulating tape release torque, and finally achieving the basic constant tension release of the insulating tape.

[0005] However, the device has obvious defects: there is no preset tension value, resulting in fluctuations in tension when the paper tray size changes; there is a lack of an adjustment mechanism for the wrapping angle, making it unable to flexibly adapt to different wrapping requirements; and the size detection after wrapping is completed is not realized in real time, making it difficult to implement more precise control of product quality.

[0006] In summary, the existing paper-wrapped copper stranded wire production process is unable to adjust the wrapping process parameters in real time. Summary of the Invention

[0007] The object of the present invention is to provide a production device and a production method for paper-covered copper stranded wire, so as to solve the problem that the existing paper-covered copper stranded wire production process cannot adjust the wrapping process parameters in real time.

[0008] The present invention is achieved through the following technical solutions: The present invention discloses a production device for paper-wrapped copper stranded wire, comprising a wrapping device and a control system; The wrapping device is provided with a transmission mechanism and a wrapping frequency conversion motor, wherein the transmission mechanism includes a paper tray, a tension sensor, a damping motor, a turntable and a dynamic adjustment mechanism for the angle of the paper wrapping head; The damping motor is installed on the drive shaft of the paper tray. The paper tape is wound on the paper tray. The paper tape passes through the turntable and is then guided onto the copper strands. The tension sensor is set on the section of the paper tape that is transmitted between the paper tray and the turntable. The dynamic adjustment mechanism of the paper bag head angle includes an encoder and a servo motor, which are installed on the turntable; The wrapping frequency conversion motor is used to adjust the rotation speed of the paper tape wrapping head at the wrapping position; the paper tape wrapping head is provided with a camera, which is used to obtain an image of the wrapping position and obtain the actual wrapping result based on the image; The tension sensor, damping motor, encoder, servo motor and wrapping frequency conversion motor are all connected to the control system; During the paper tape wrapping process, the tension sensor is used to obtain the actual tension of the paper tape; The encoder is used to monitor the wrapping angle and obtain the actual wrapping angle; The control system is used to compare the actual wrapping result with the preset wrapping result, and adjust the speed of the damping motor, the rotation direction of the servo motor or the speed of the wrapping frequency conversion motor according to the comparison result.

[0009] Furthermore, the servo motor is connected to the turntable via a gear transmission mechanism.

[0010] Furthermore, two guide rollers for guiding the paper tape are provided above the turntable.

[0011] Furthermore, the tension sensors are provided with N numbers, and the control system performs weighted averaging on the N measurement values ​​acquired by the tension sensors to obtain an average tension value; and compares the average tension value with a preset tension range.

[0012] Furthermore, the measurement values ​​of N tension sensors are F 1. F 2...... F N , the corresponding weight is k 1. k 2...... k N ,satisfy ; where i=1, 2...N, represents the weight coefficient of the i-th sensor; The sensor closer to the wrapping point has a higher weight, so the calculation expression of the average tension value is: ; in, Represents the average tension value, Represents the measurement value of the i-th sensor.

[0013] Furthermore, the wrapping angle is the angle between the paper tape and the copper stranded wire; the wrapping angle calculation formula is: ; Wherein, α is the wrapping angle; d is the diameter of the copper strand; v is the forward speed of the copper strand; n is the rotation speed of the turntable.

[0014] Furthermore, the production device of the paper-covered copper stranded wire also includes a wire-paying device, a straightening device, a traction device and a wire-taking device; the copper stranded wire passes through the wire-paying device, the straightening device, the wrapping device and the traction device in sequence, and then enters the wire-taking device.

[0015] The present invention also discloses a method for producing a paper-covered copper stranded wire, which comprises the following steps based on the production device for the paper-covered copper stranded wire: During the paper tape wrapping process, the paper tape passes through a turntable and is guided onto the copper strands. The tension sensor detects the tension of the paper tape in real time to obtain the actual tension of the paper tape. The encoder continuously monitors the wrapping angle to obtain the actual wrapping angle. The camera captures an image of the wrapping position and uses this image to determine the actual wrapping result. The control system compares the actual wrapping result with the preset wrapping result. If the actual wrapping result does not meet the preset wrapping result requirements, it determines whether the following two conditions are met: Whether the actual tension is within the preset tension range, and whether the actual wrapping angle is within the preset wrapping angle range; If the actual tension is not within the preset tension range or the actual wrapping angle is not within the preset wrapping angle range, the current condition is adjusted to not meet the requirements. After the adjustment is completed, if the actual wrapping result still does not meet the preset wrapping result requirements, the speed of the wrapping frequency conversion motor is adjusted; If the actual tension is not within the preset tension range and the actual wrapping angle is not within the preset wrapping angle range, the speed of the damping motor is adjusted according to the actual tension and the preset tension range until the actual tension is within the preset tension range; after adjusting the tension, if the actual wrapping result still does not meet the preset wrapping result requirements, the rotation direction of the servo motor is adjusted according to the actual wrapping angle and the preset wrapping angle range until the actual wrapping angle is within the preset wrapping angle range; if the actual wrapping result still does not meet the preset wrapping result requirements, the speed of the wrapping frequency conversion motor is adjusted.

[0016] Furthermore, the speed of the damping motor is adjusted according to the actual tension and the preset tension range, specifically: if the actual tension is greater than the preset tension range, the speed of the damping motor is reduced; if the actual tension is less than the preset tension range, the speed of the damping motor is increased.

[0017] Furthermore, the actual wrapping result includes an actual wrapping pitch or an actual reconnection width; the preset wrapping result is a preset wrapping pitch range or a preset reconnection width range; The speed of the wrapping frequency conversion motor is specifically adjusted as follows: if the actual wrapping pitch is greater than the maximum value of the preset wrapping pitch range, the speed of the wrapping frequency conversion motor is increased; if the actual wrapping pitch is less than the minimum value of the preset wrapping pitch range, the speed of the wrapping frequency conversion motor is reduced; If the actual reconnection width is greater than the maximum value of the preset reconnection width range, the speed of the wrapping frequency conversion motor is reduced; if the actual reconnection width is less than the minimum value of the preset reconnection width range, the speed of the wrapping frequency conversion motor is increased.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention discloses a production device for paper-wrapped copper stranded wire. The wrapping device includes a conveying mechanism and a wrapping variable frequency motor. The conveying mechanism includes a paper tray, a tension sensor, a damping motor, a turntable, and a dynamic wrapping head angle adjustment mechanism. The damping motor is mounted on the drive shaft of the paper tray. A paper tape is wound around the paper tray, and the paper tape is guided onto the copper stranded wire after passing through the turntable. The dynamic wrapping head angle adjustment mechanism includes an encoder and a servo motor, which are mounted on the turntable. The tension sensor, the damping motor, the encoder, the servo motor, and the wrapping variable frequency motor are connected to a control system. The tension sensor is used to obtain the actual tension of the paper tape in real time, and the encoder is used to monitor the wrapping angle to obtain the actual wrapping angle. A camera is provided at the paper tape wrapping head to capture an image of the wrapping position and obtain the actual wrapping result based on the image. The control system compares the actual wrapping result with a preset wrapping result. If the actual wrapping result does not meet the preset wrapping result requirement, the speed of the wrapping variable frequency motor is adjusted based on the comparison result to ensure the wrapping result. This system can significantly improve the consistency of batch products, achieve efficient utilization of paper tape materials while ensuring quality, and reduce production costs.

[0019] Furthermore, by installing N tension sensors, tape tension data can be collected from different locations, avoiding measurement errors caused by local anomalies of a single sensor (such as tape wrinkles or sensor contact deviation). A weighted average algorithm ensures that the average tension value is closer to actual operating conditions. Based on the comparison of the more accurate average tension value with the preset range, the control system's adjustment instructions to the damping motor are more reliable, reducing frequent adjustments caused by transient fluctuations, avoiding overshoot of the tape tension, and ensuring the smoothness of the tape winding process. In scenarios such as tape joints and slight uneven thickness, multi-sensor data can effectively smooth local disturbances, making tension adjustment more tolerant, reducing the impact of tape quality fluctuations on wrapping quality, and improving the equipment's adaptability to different batches of tape.

[0020] The present invention discloses a method for producing paper-wrapped copper stranded wire. A tension sensor detects the tension of a paper tape in real time to obtain the actual tension of the paper tape; an encoder continuously monitors the wrapping angle to obtain the actual wrapping angle; and a camera captures an image of the wrapping position and obtains the actual wrapping result based on the image. A control system compares the actual wrapping result with a preset wrapping result. If the actual wrapping result does not meet the preset wrapping result requirement, it determines whether the actual tension is within the preset tension range and / or whether the actual wrapping angle is within the preset wrapping angle range. If only one of these two conditions is not met, one of the two conditions is adjusted. If the actual wrapping result still does not meet the preset wrapping result requirement, the speed of the wrapping variable frequency motor is finally adjusted until the requirement is met. If both conditions are not met, the tension is first adjusted, then the wrapping angle is adjusted, and finally the speed of the wrapping variable frequency motor is adjusted. The three parameters of tension, wrapping angle, and wrapping head speed all affect the wrapping result, but to varying degrees. Through optimized design, the present invention reduces the degree of influence of tension, wrapping angle, and wrapping head speed in descending order, so they are prioritized during regulation. The present invention prioritizes ensuring tension stability, and then ensures the wrapping angle through a dynamic adjustment mechanism of the paper wrapping head angle. When both cannot meet the requirements, the speed of the wrapping frequency conversion motor is adjusted. The three work together to ensure that the paper tape is accurately wrapped around the copper stranded wire, ensuring the uniformity and consistency of the wrapping, which is beneficial to improving the insulation performance and appearance quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of an assembly line for a paper-covered copper stranded wire production device according to the present invention; Figure 2 This is a schematic structural diagram of the wrapping device provided by the present invention.

[0022] Among them, 1. Wire-releasing device; 2. Straightening device; 3. Wrapping device; 4. Pulling device; 5. Wire-reeling device; 6. Paper tray; 7. Tension sensor; 8. Damping motor; 9. Paper tape; 10. Turntable; 11. Encoder; 12. Servo motor; 13. Camera; 14. Copper stranded wire. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following is a further detailed description with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. That is, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments.

[0024] The components described and illustrated in the drawings and embodiments of the present invention may be arranged and designed in a variety of different configurations. Therefore, the detailed description of the embodiments of the present invention provided in the following drawings is not intended to limit the scope of the claimed invention, but merely represents a selected embodiment of the present invention. All other embodiments derived by those skilled in the art based on the drawings and embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0025] like Figure 1 As shown, the present invention provides a production device for paper-covered copper stranded wire, comprising a pay-out device 1, a straightening device 2, a wrapping device 3, a traction device 4 and a take-up device 5 connected in sequence; the copper stranded wire 14 passes through the pay-out device 1, the straightening device 2, the wrapping device 3 and the traction device 4 in sequence and then enters the take-up device 5.

[0026] like Figure 2 As shown, the wrapping device 3 is provided with a conveying mechanism, which includes a paper tray 6, a tension sensor 7, a damping motor 8, a turntable 10, and a dynamic angle adjustment mechanism for the paper wrapping head. The damping motor 8 is mounted on the drive shaft of the paper tray 6. The paper tray 6 is wound with a paper tape 9, which passes through the turntable 10 and is then guided onto the copper stranded wire 14. Two guide rollers are fixed to the upper surface of the turntable 10 to guide the paper tape 9.

[0027] Specifically, the servo motor 12 is connected to the turntable 10 via a gear transmission mechanism, and the servo motor 12 is used to drive the turntable 10 to rotate.

[0028] The dynamic adjustment mechanism for the angle of the paper bag head is installed on the lower side of the turntable 10, and includes an encoder 11 and a servo motor 12. The encoder 11 is used to monitor the wrapping angle.

[0029] The section of the paper tape 9 conveyed between the paper tray 6 and the turntable 10 is provided with a tension sensor 7. The tension sensor 7 is a strain gauge tension sensor, which is used to detect the tension of the paper tape 9 in real time. Specifically: When the tension of paper tape 9 acts on the elastic element of tension sensor 7, the elastic element deforms slightly. The strain gauge attached to the elastic element changes with the deformation, causing its resistance to change. Tension sensor 7 detects this resistance signal and transmits it to the control system, which converts it into a current signal. The control system determines whether the current signal deviates from a preset range. If so, it indicates that the tension of paper tape 9 is too high or too low, requiring adjustment of the speed of damping motor 8, thereby adjusting the unwinding speed of paper tray 6. This ensures that the tension of paper tape 9 remains stable within the preset range, thus guaranteeing wrapping quality.

[0030] For example, the preset range is 10±1 mA. When the current signal of the tension sensor 7 deviates from the range of 10±1 mA, the damping motor 8 responds quickly and adjusts the unwinding speed of the paper tray 6 to ensure that the tension of the paper tape 9 is always stable within the precise range of 15N±0.15N, thereby ensuring the wrapping quality.

[0031] More preferably, a plurality of tension sensors 7 are provided, and the tension sensors 7 are located above and below the paper tape 9 , so that the tension of the paper tape 9 can be measured more accurately.

[0032] Assuming that there are N tension sensors 7, N current signals can be obtained, and the N current signals are weighted averaged to obtain an average tension value.

[0033] The measured values ​​of N tension sensors 7 are F 1. F 2...... F N , the corresponding weight is k 1. k 2...... k N ,satisfy ; where i=1, 2...N, represents the weight coefficient of the i-th sensor; The sensor closer to the wrapping point has a higher weight, so the calculation expression of the average tension value is: ; in, Represents the average tension value, Represents the measurement value of the i-th sensor.

[0034] Specifically, the dynamic adjustment mechanism of the paper wrapping head angle monitors the position of the turntable 10 through the encoder 11, and then obtains the angle between the paper tape 9 and the copper strands 14, that is, the wrapping angle, which is specifically explained as follows: The turntable 10 is the core component that drives the paper tape head to rotate as a whole, and its rotation angle directly determines the winding direction and position of the paper tape 9.

[0035] The angle between the paper tape 9 and the axis of the copper strands 14, commonly called the wrapping angle, is determined by the rotational position of the turntable 10 and the forward speed of the copper strands 14. When the turntable 10 rotates to a specific angle, the direction of the paper tape 9 is drawn out, forming a fixed angle with the axis of the copper strands 14.

[0036] The encoder 11 is rigidly connected to the rotating shaft of the turntable 10 and has the function of outputting the absolute position (such as the rotation angle value, in degrees or pulse numbers) or relative displacement (such as the number of rotations, the number of pulses) of the turntable 10 in real time.

[0037] Since the mechanical structure of the turntable 10 has preset the correspondence between the "rotation angle" and the "direction of paper tape 9 output", for example, when the turntable 10 rotates 30°, the direction of paper tape 9 output forms a 60° angle relative to the axis of the copper stranded wire 14, so the position signal monitored by the encoder 11 can be directly mapped to the current spatial angle of the paper tape 9.

[0038] The angle between the paper tape 9 and the copper strand 14 (i.e., the wrapping angle α) is essentially the angle between the winding path of the paper tape 9 and the axis of the copper strand 14. Its calculation formula can be simplified as follows: ;in, d is the diameter of the copper strand 14; v is the forward speed of the copper strand 14; n is the rotation speed of the turntable 10.

[0039] In the dynamic adjustment mechanism, encoder 11's core function is to monitor the real-time position of turntable 10 to determine whether the current tape 9 feed-out direction is consistent with the preset angle. For example, if encoder 11 detects that the turntable 10 position deviates from the set value (e.g., the target angle corresponds to 180°, but the actual angle is 175°), the control system will drive the turntable 10 through servo motor 12 to rotate by 5° until the encoder 11 feedback position matches the target angle, thereby ensuring that the tape 9 angle meets the required value.

[0040] The wrapping device 3 further includes a wrapping variable frequency motor, which is used to accurately control the rotation speed of the paper tape 9 around the wrapping head.

[0041] A camera 13 is provided beside the wrapping position for acquiring an image of the wrapping position, obtaining actual measurement data based on the image, and then comparing the actual measurement data with the preset value to determine whether the actual measurement data is appropriate. If not, the control strategy is activated.

[0042] Different products have different requirements. Some require a specific wrapping pitch, while others require a respinning process. Both the wrapping pitch and the respinning width are key parameters for the quality of paper-wrapped copper stranded wire. A wrapping pitch that is too large can result in loose paper tape 9 coverage, potentially creating gaps. A wrapping pitch that is too small can increase paper tape 9 consumption or even lead to abnormal copper stranded wire diameters due to excessive overlap. Exceeding the respinning width directly impacts insulation and protective performance. Excessively wide respinning widths waste material, while too narrow can result in missing strands. The actual measured data in the present invention includes the actual wrapping pitch or respinning width.

[0043] When the product requires a wrapping pitch, the control system compares the actual wrapping pitch with the preset wrapping pitch range. If the actual wrapping pitch does not meet the preset wrapping pitch range requirements, it determines whether the following two conditions are met: Whether the actual tension is within the preset tension range, and whether the actual wrapping angle is within the preset wrapping angle range; If the actual tension is not within the preset tension range or the actual wrapping angle is not within the preset wrapping angle range, the current condition is adjusted to not meet the requirements. After the adjustment is completed, if the actual wrapping result still does not meet the preset wrapping result requirements, the speed of the wrapping frequency conversion motor is adjusted; If the actual tension is not within the preset tension range and the actual wrapping angle is not within the preset wrapping angle range, the speed of the damping motor 8 is adjusted based on the actual tension and the preset tension range. After adjusting the tension, if the actual wrapping result still does not meet the preset wrapping result requirements, the rotation direction of the servo motor 12 is adjusted based on the actual wrapping angle and the preset wrapping angle range. If the actual wrapping result still does not meet the preset wrapping result requirements, the speed of the wrapping frequency conversion motor is adjusted. This avoids insufficient paper tape coverage due to an excessively large pitch or excessive overlap of the paper tape 9 due to an excessively small pitch, thereby saving paper tape 9 material.

[0044] When the product requires wrapping reconnection, the control system compares the actual reconnection width with the preset reconnection width range. If the actual reconnection width does not meet the preset reconnection width range requirements, it determines whether the following two conditions are met: Whether the actual tension is within the preset tension range, and whether the actual wrapping angle is within the preset wrapping angle range; If the actual tension is not within the preset tension range or the actual wrapping angle is not within the preset wrapping angle range, the current condition is adjusted to not meet the requirements. After the adjustment is completed, if the actual wrapping result still does not meet the preset wrapping result requirements, the speed of the wrapping frequency conversion motor is adjusted; If the actual tension is not within the preset tension range and the actual wrapping angle is not within the preset wrapping angle range, the speed of the damping motor 8 is adjusted according to the actual tension and the preset tension range. After adjusting the tension, if the actual wrapping result still does not meet the preset wrapping result requirements, the rotation direction of the servo motor 12 is adjusted according to the actual wrapping angle and the preset wrapping angle range; if the actual wrapping result still does not meet the preset wrapping result requirements, the speed of the wrapping frequency conversion motor is adjusted.

[0045] In the aforementioned control process, the speed of the damping motor 8 is adjusted based on the actual tension and the preset tension range. Specifically, if the actual tension is greater than the preset tension range, the speed of the damping motor 8 is reduced; if the actual tension is less than the preset tension range, the speed of the damping motor 8 is increased. The present invention adopts fuzzy control. As long as the actual tension is not within the preset tension range, regardless of whether the actual tension is large or small, it is uniformly adjusted to the preset tension range.

[0046] The speed of the wrapping frequency conversion motor is adjusted as follows: if the actual wrapping pitch is greater than the maximum value of the preset wrapping pitch range, the speed of the wrapping frequency conversion motor is increased. By increasing the speed of the wrapping frequency conversion motor, the pitch can be reduced, thereby avoiding insufficient paper tape coverage due to excessive pitch; if the actual wrapping pitch is less than the minimum value of the preset wrapping pitch range, the speed of the wrapping frequency conversion motor is reduced, thereby reducing excessive overlap of the paper tape 9 and saving paper tape material.

[0047] If the actual reconnection width is greater than the maximum value of the preset reconnection width range, the speed of the wrapping frequency conversion motor is reduced to reduce the overlap amount and avoid waste of paper tape 9; if the actual reconnection width is less than the minimum value of the preset reconnection width range, the speed of the wrapping frequency conversion motor is increased to increase the overlap, ensure the protective performance, and avoid product scrapping due to missing packages.

[0048] The present invention uses a camera 13 to directly capture images of the wrapping position, allowing for intuitive acquisition of the actual wrapping status. This breaks through the limitations of traditional methods that rely solely on indirect calculations of mechanical parameters, making detection more direct and accurate. The wrapping pitch directly affects the insulation performance and mechanical strength of the copper stranded wire 14, and the reconnection width is related to the sealing of the insulation layer. For the copper stranded wire 14 after paper wrapping, the present invention uses video detection technology to perform real-time measurements of the wrapping pitch and reconnection width to ensure that the reconnection width or wrapping pitch meets the requirements. This significantly improves the consistency of batch products, achieves efficient utilization of paper tape materials while ensuring quality, and reduces production costs.

[0049] The features and performance of the present invention are further described in detail below with reference to the embodiments.

[0050] Taking the specific specifications of copper wire as an example, the following reference parameters are preset: the diameter of the copper stranded wire 14 is set to 23mm, the width of the paper tape 9 is 25mm, the preset reconnection width is 5mm, the preset tension range of the paper tape 9 is 15N±0.15N, and the preset wrapping angle range is 70°±1°. The specific production process is as follows: The copper stranded wire 14 passes through the pay-off device 1 and the straightening device 2 and enters the wrapping device 3, where it is wrapped with a paper tape 9. After wrapping is completed, it passes through the traction device 4 and enters the take-up device 5 for take-up. During the wrapping process of the paper tape 9, the tension sensor 7 detects the tension of the paper tape 9 in real time to obtain the actual tension; At the same time, the encoder 11 continuously monitors the wrapping angle to obtain the actual wrapping angle; The camera 13 acquires an image of the wrapping position in real time, obtains the actual reconnection width based on the image, and compares the actual reconnection width with the preset reconnection width range. If it is within the preset reconnection width range, it means that the wrapping parameters are appropriate; If the actual reconnection width does not meet the preset reconnection width range requirement, then determine whether the following two conditions are met: whether the actual tension is within the preset tension range, and whether the actual wrapping angle is within the preset wrapping angle range; If the actual tension is not within the preset tension range and the actual wrapping angle is not within the preset wrapping angle range, the speed of the damping motor 8 is adjusted based on the actual tension and the preset tension range to adjust the unwinding speed of the paper tray 6, ensuring that the tension of the paper tape 9 is always stable within the precise range of 15N±0.15N, thereby ensuring the wrapping quality; After the tension is adjusted, if the actual rejoining width still does not meet the preset rejoining width range, the rotation direction of the servo motor 12 is adjusted according to the actual wrapping angle and the preset wrapping angle range. The servo motor 12 drives the turntable 10 to rotate, and the actual wrapping angle is corrected to the preset wrapping angle range to ensure the accuracy of the wrapping angle. If the actual reconnection width is found to be greater than the maximum value of the preset reconnection width range, the speed of the wrapping frequency conversion motor is reduced to ensure that the wrapping effect meets the requirements.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the present invention.

Claims

1. A production device for paper-covered copper stranded wire, characterized in that: It includes a wrapping device (3) and a control system; The wrapping device (3) is provided with a transmission mechanism and a wrapping frequency conversion motor, wherein the transmission mechanism comprises a paper tray (6), a tension sensor (7), a damping motor (8), a turntable (10) and a dynamic adjustment mechanism for the angle of the paper wrapping head; A damping motor (8) is mounted on a drive shaft of a paper tray (6), a paper tape (9) is wound around the paper tray (6), and the paper tape (9) is guided onto a copper strand (14) after passing through a turntable (10); a tension sensor (7) is arranged on a section of the paper tape (9) that is transmitted between the paper tray (6) and the turntable (10); The paper bag head angle dynamic adjustment mechanism includes an encoder (11) and a servo motor (12), and the encoder (11) and the servo motor (12) are installed on the turntable (10); The wrapping frequency conversion motor is used to adjust the rotation speed of the paper tape (9) wrapping head at the wrapping position; a camera (13) is provided at the paper tape (9) wrapping head, and the camera (13) is used to obtain an image of the wrapping position and obtain an actual wrapping result based on the image; The tension sensor (7), the damping motor (8), the encoder (11), the servo motor (12) and the wrapping frequency conversion motor are all connected to the control system; During the wrapping process of the paper tape (9), the tension sensor (7) is used to obtain the actual tension of the paper tape (9); The encoder (11) is used to monitor the wrapping angle and obtain the actual wrapping angle; The control system is used to compare the actual wrapping result with the preset wrapping result, and adjust the speed of the damping motor (8), the rotation direction of the servo motor (12) or the speed of the wrapping frequency conversion motor according to the comparison result.

2. The production device of a paper-covered copper stranded wire according to claim 1, characterized in that: The servo motor (12) is connected to the turntable (10) via a gear transmission mechanism.

3. The production device of a paper-covered copper stranded wire according to claim 1, characterized in that: Two guide rollers for guiding the paper tape (9) are provided above the turntable (10).

4. The production device of a paper-covered copper stranded wire according to claim 1, characterized in that: The tension sensors (7) are provided with N numbers, and the control system performs weighted averaging on the N measurement values ​​acquired by the tension sensors (7) to obtain an average tension value; and compares the average tension value with a preset tension range.

5. The production device of a paper-covered copper stranded wire according to claim 4, characterized in that: The measurement values ​​of N tension sensors (7) are F 1. F 2...... F N , the corresponding weight is k 1. k 2...... k N ,satisfy ; where i=1, 2...N, represents the weight coefficient of the i-th sensor; The sensor closer to the wrapping point has a higher weight, so the calculation expression of the average tension value is: ； in, Represents the average tension value, Represents the measurement value of the i-th sensor.

6. The production device of a paper-covered copper stranded wire according to claim 1, characterized in that: The wrapping angle is the angle between the paper tape (9) and the copper stranded wire (14); the wrapping angle calculation formula is: ; Wherein, α is the wrapping angle; d is the diameter of the copper strand (14); v is the forward speed of the copper strand (14); n is the rotation speed of the turntable (10).

7. The production device of a paper-covered copper stranded wire according to claim 1, characterized in that: The production device for the paper-covered copper stranded wire further comprises a pay-off device (1), a straightening device (2), a traction device (4) and a take-up device (5); the copper stranded wire (14) passes through the pay-off device (1), the straightening device (2), the wrapping device (3) and the traction device (4) in sequence and then enters the take-up device (5).

8. A method for producing paper-covered copper stranded wire, characterized in that: A production device for paper-covered copper stranded wire according to any one of claims 1 to 7, The following processes are included: During the wrapping process of the paper tape (9), the paper tape (9) passes through the turntable (10) and is then guided onto the copper stranded wire (14). The tension sensor (7) detects the tension of the paper tape (9) in real time to obtain the actual tension of the paper tape (9); the encoder (11) continuously monitors the wrapping angle to obtain the actual wrapping angle. The camera (13) obtains an image of the wrapping position and obtains an actual wrapping result based on the image; The control system compares the actual wrapping result with the preset wrapping result. If the actual wrapping result does not meet the preset wrapping result requirements, it determines whether the following two conditions are met: Whether the actual tension is within the preset tension range, and whether the actual wrapping angle is within the preset wrapping angle range; If the actual tension is not within the preset tension range or the actual wrapping angle is not within the preset wrapping angle range, the current condition is adjusted to not meet the requirements. After the adjustment is completed, if the actual wrapping result still does not meet the preset wrapping result requirements, the speed of the wrapping frequency conversion motor is adjusted; If the actual tension is not within the preset tension range and the actual wrapping angle is not within the preset wrapping angle range, the speed of the damping motor (8) is preferentially adjusted according to the actual tension and the preset tension range until the actual tension is within the preset tension range; After adjusting the tension, if the actual wrapping result still does not meet the preset wrapping result requirement, the rotation direction of the servo motor (12) is adjusted according to the actual wrapping angle and the preset wrapping angle range until the actual wrapping angle is within the preset wrapping angle range; if the actual wrapping result still does not meet the preset wrapping result requirement, the speed of the wrapping frequency conversion motor is adjusted.

9. The method for producing a paper-covered copper stranded wire according to claim 8, wherein: The speed of the damping motor (8) is adjusted according to the actual tension and the preset tension range, specifically: if the actual tension is greater than the preset tension range, the speed of the damping motor (8) is reduced; If the actual tension is less than the preset tension range, the speed of the damping motor (8) is increased.

10. The method for producing a paper-covered copper stranded wire according to claim 8, wherein: The actual wrapping result includes the actual wrapping pitch or the actual reconnection width; the preset wrapping result is a preset wrapping pitch range or a preset reconnection width range; The adjusting the speed of the wrapping frequency conversion motor is specifically as follows: if the actual wrapping pitch is greater than the maximum value of the preset wrapping pitch range, increasing the speed of the wrapping frequency conversion motor; If the actual wrapping pitch is less than the minimum value of the preset wrapping pitch range, the speed of the wrapping frequency conversion motor is reduced; If the actual reconnection width is greater than the maximum value of the preset reconnection width range, the speed of the wrapping frequency conversion motor is reduced; If the actual reconnection width is smaller than the minimum value of the preset reconnection width range, the speed of the wrapping frequency conversion motor is increased.

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