Copper wire stranding machine and copper wire stranding method

Abstract

The invention is suitable for the technical field of copper wire stranding, and particularly relates to a copper wire stranding machine and a copper wire stranding method, and the method comprises the steps: obtaining production information; wherein the production information comprises a stranded wire model and tension information; obtaining at least one piece of product information based on the production information; wherein the product information comprises diameter information and gap information, the diameter information comprises at least one copper wire diameter and at least one stranded wire diameter, and the gap information comprises at least one interlayer gap and at least one wire gap; obtaining control information based on each piece of product information; wherein the control information is used for controlling the copper wire stranding machine. According to the copper wire stranding machine and the copper wire stranding method provided by the embodiment of the invention, the problem that the product quality is influenced due to the tension change of the copper wire when the concentric multi-layer stranded copper wire is produced can be solved.

Description

Technical Field

[0001] The present application belongs to the technical field of copper wire stranding, and in particular relates to a copper wire stranding machine and a copper wire stranding method. Background Art

[0002] Copper stranded wire is a conductor formed by twisting multiple single-strand copper wires (or copper alloy wires) together in a spiral shape according to certain rules, referred to as "copper stranded wire".

[0003] In the existing technology, when producing concentric multi-layer stranded copper wire using a copper wire stranding machine, the tension of the copper wire may change due to reasons such as uneven winding tightness of the wire on the pay-off reel (the wire is wound too loosely on the pay-off reel or there are overlapped or skipped wires) or inconsistent hardness of the copper wire (uneven annealing), thereby affecting product quality. Summary of the Invention

[0004] The embodiments of the present application provide a copper wire stranding machine and a copper wire stranding method, which can improve the problem of product quality being affected by changes in the tension of the copper wire when producing concentric multi-layer stranded copper wires.

[0005] In a first aspect, an embodiment of the present application provides a copper wire twisting method, comprising: Acquiring production information; wherein the production information includes a strand model and tension information, the strand model reflecting a three-dimensional model of a portion of the produced copper strands, and the tension information including at least one real-time monitoring device reflecting the tension of the copper wire during the stranding process; At least one product information is obtained based on the production information; wherein the product information includes diameter information and gap information, the diameter information includes at least one copper wire diameter and at least one stranded wire diameter, the gap information includes at least one interlayer gap and at least one interwire gap, the interlayer gap reflects the gap between two adjacent stranded layers, and the interwire gap reflects the gap between two adjacent copper wires in the same stranded layer; Control information is obtained based on the respective product information; wherein the control information is used to control a copper wire stranding machine.

[0006] The above technical solutions in the embodiments of the present application have at least the following technical effects: The copper wire stranding method provided in the embodiment of the present application first obtains production information including a stranding model and tension information, and intuitively reflects the actual structure of some of the produced copper strands (such as the twisting shape and strand distribution) through the stranding model, monitors the production process in real time, and provides a basis for analyzing the production quality of the copper strands. Then, based on the production information, at least one product information including diameter information and gap information is obtained, and the original production data is converted into a structured indicator that can directly guide quality control, quickly locate production defects, achieve targeted problem solving, and provide a basis for dynamically optimizing production parameters. Then, based on each of the product information, control information for controlling the copper wire stranding machine is obtained, and the quality analysis results are converted into specific production execution instructions to achieve real-time dynamic adjustment of production parameters, improve the problem of affecting product quality due to tension changes, and improve quality stability.

[0007] In a second aspect, an embodiment of the present application provides a copper wire stranding system, comprising: An acquisition unit, configured to acquire production information; wherein the production information includes a stranded wire model and tension information, wherein the stranded wire model reflects a three-dimensional model of a portion of the produced copper stranded wire, and the tension information includes at least one copper wire tension information that is monitored in real time to reflect the tension of the copper wire during the stranding process; an analysis unit, configured to obtain at least one product information based on the production information; wherein the product information includes diameter information and gap information, the diameter information including at least one copper wire diameter and at least one stranded wire diameter, the gap information including at least one interlayer gap and at least one interwire gap, the interlayer gap reflecting the gap between two adjacent stranded layers, and the interwire gap reflecting the gap between two adjacent copper wires in the same stranded layer; A control unit is used to obtain control information based on each of the product information; wherein the control information is used to control the copper wire stranding machine.

[0008] In a third aspect, an embodiment of the present application provides a copper wire stranding machine, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any one of the methods described in the first aspect when executing the computer program.

[0009] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method described in any one of the above-mentioned first aspects is implemented.

[0010] In a fifth aspect, an embodiment of the present application provides a computer program product. When the computer program product is run on a copper wire stranding machine, the copper wire stranding machine executes the copper wire stranding method described in any one of the first aspects above.

[0011] It can be understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0013] Figure 1 It is a schematic flow chart of a copper wire twisting method provided in one embodiment of the present application; Figure 2 1 is a flow chart of step S200 in the copper wire twisting method provided in one embodiment of the present application; Figure 3 2 is a flow chart of step S2241 in the copper wire twisting method provided in one embodiment of the present application; Figure 4 This is a schematic structural diagram of a copper wire stranding system provided in one embodiment of the present application; Figure 5 It is a structural schematic diagram of a copper wire stranding machine provided in one embodiment of the present application. DETAILED DESCRIPTION

[0014] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0015] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections thereof.

[0016] It will also be understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0017] As used in this specification and the appended claims, the term "if" can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]," depending on the context.

[0018] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0019] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0020] Copper stranded wire is a conductor formed by twisting multiple single-strand copper wires (or copper alloy wires) together in a spiral shape according to certain rules, referred to as "copper stranded wire".

[0021] In the existing technology, when producing concentric multi-layer stranded copper wire using a copper wire stranding machine, the tension of the copper wire may change due to reasons such as uneven winding tightness of the wire on the pay-off reel (the wire is wound too loosely on the pay-off reel or there are overlapped or skipped wires) or inconsistent hardness of the copper wire (uneven annealing), thereby affecting product quality.

[0022] To solve the above problems, an embodiment of the present application provides a copper wire stranding machine and a copper wire stranding method. In this method, by first obtaining production information including a stranding model and tension information, the stranding model is used to intuitively reflect the actual structure of some of the produced copper strands (such as the twisted shape and strand distribution), and the production process is monitored in real time to provide a basis for analyzing the production quality of the copper strands. Then, based on the production information, at least one product information including diameter information and gap information is obtained, and the original production data is converted into structured indicators that can directly guide quality control, quickly locate production defects, achieve targeted problem solving, and provide a basis for dynamically optimizing production parameters. Based on each product information, control information for controlling the copper wire stranding machine is obtained, and the quality analysis results are converted into specific production execution instructions to achieve real-time dynamic adjustment of production parameters, improve the problem of affecting product quality due to tension changes, and improve quality stability.

[0023] The copper wire stranding method provided in the embodiment of the present application can be applied to a copper wire stranding machine. In this case, the copper wire stranding machine is the executor of the copper wire stranding method provided in the embodiment of the present application. The embodiment of the present application does not impose any restrictions on the specific type of the copper wire stranding machine.

[0024] For example, a copper wire stranding machine may include, but is not limited to, a control device, a copper wire stranding device, and a model acquisition device. The control device is communicatively connected to the copper wire stranding device and the model acquisition device, respectively. The control device is configured to receive data transmitted by the model acquisition device and control the copper wire stranding device to simultaneously change the tension of all copper wires or individually change the tension of one or a portion of the copper wires. For example, the control device may be a programmable logic controller (PLC) or a programmable automation controller (PAC), but is not limited to such. A copper wire stranding device is a stranding device that can twist multiple single-strand copper wires (or copper alloy wires) together in a spiral shape according to a predetermined pattern to form a conductor (copper stranded wire) and can simultaneously change the tension of all copper wires or individually change the tension of one or a portion of the copper wires. For example, the copper wire stranding device may be a cage stranding machine or a high-speed stranding machine, but is not limited to such. The model acquisition device is a device that can acquire a model of the finished copper stranded wire produced by the copper wire stranding device. The model acquisition device may be located near the finished product output terminal of the copper wire stranding device. For example, the model acquisition device may be an industrial CT scanner or ultrasonic testing equipment, but is not limited to such.

[0025] In order to better understand the copper wire twisting method provided in the embodiment of the present application, the specific implementation process of the copper wire twisting method provided in the embodiment of the present application is exemplarily introduced below.

[0026] Figure 1 A schematic flow chart of a copper wire twisting method provided in an embodiment of the present application is shown. The copper wire twisting method includes: S100, obtaining production information; wherein the production information includes a stranded wire model and tension information, the stranded wire model reflects a three-dimensional model of a portion of the produced copper stranded wire, and the tension information includes at least one real-time monitoring copper wire tension information reflecting the tension of the copper wire during the stranding process.

[0027] It is understood that the strand model can be obtained by generating a 3D digital model of a portion of the copper stranded wire produced using 3D modeling techniques (such as laser scanning and CT imaging), or by receiving data transmitted by a model acquisition device, but is not limited to these methods. Tension information can be obtained by using a tension sensor (such as a strain gauge sensor or magnetic powder brake) in the copper stranding device to collect the tensile force of each copper wire during the twisting process in real time, or by receiving data transmitted by the user, but is not limited to these methods. Acquiring production information including the strand model and tension information can intuitively reflect the actual structure (such as the twist shape and strand distribution) of a portion of the copper stranded wire produced, allowing for real-time monitoring of the production process and providing a basis for analyzing the production quality of the copper stranded wire.

[0028] S200, obtaining at least one product information based on the production information; wherein the product information includes diameter information and gap information, the diameter information includes at least one copper wire diameter and at least one twisted wire diameter, the gap information includes at least one interlayer gap and at least one interwire gap, the interlayer gap reflects the gap between two adjacent twisted layers, and the interwire gap reflects the gap between two adjacent copper wires in the same twisted layer.

[0029] It is understood that the method for obtaining diameter information and gap information based on production information can be to analyze the stranded wire model, mark each copper wire in the stranded wire model, calculate the diameter of each copper wire and the diameter of the copper strand, and use image processing technology to layer the stranded wire model according to the diameter of the copper wire, and then calculate the gap between each adjacent layer and the gap between two adjacent copper wires in the same layer. Alternatively, the stranded wire model can be sent to a user and then the user's transmitted data can be received, etc., but is not limited to this. Obtaining at least one product information including diameter information and gap information based on production information can convert raw production data into structured indicators that can directly guide quality control, quickly locate production defects, achieve targeted problem solving, and provide a basis for dynamically optimizing production parameters.

[0030] In one possible implementation, see Figure 2 S200: obtaining at least one product information based on the production information, including: S210, obtaining a stranded wire model based on the tension information; wherein the stranded wire model is a three-dimensional model reflecting the internal structure of the copper stranded wire obtained by a model obtaining device of the copper wire stranding machine.

[0031] It is understood that the stranded wire model can be obtained based on the tension information by controlling the model acquisition device to scan the produced copper stranded wire when the value corresponding to the copper wire tension information in the tension information at a certain time point is greater than a first preset value (such as 60N, 65N) or less than a second preset value (such as 40N, 45N), to obtain a stranded wire model reflecting the internal structure of the copper stranded wire produced when the value corresponding to the copper wire tension information at a certain time point is greater than the preset value. Alternatively, the model acquisition device can be controlled to scan the produced copper stranded wire at every preset time period (such as 1 minute, 5 minutes, etc.) to obtain the stranded wire model, etc., but is not limited thereto. Obtaining the stranded wire model based on the tension information can provide a basis for subsequent steps.

[0032] In one possible implementation, see Figure 2 , S210, obtaining a stranded wire model based on the tension information, including: S211, step a, determining whether the tension reflected by each copper wire tension information in the tension information within a preset time period is within a corresponding fluctuation range; wherein the fluctuation range is a numerical range that fluctuates by 5% based on the preset tension of the copper wire when twisted.

[0033] It is understood that the preset time period can be 1 minute, 2 minutes, or a user-defined time period, but is not limited thereto. The preset tension can be 60N, 65N, or a user-defined value based on the specifications of the copper stranded wire being produced, but is not limited thereto. The fluctuation range can be a range of values that fluctuate by 5% or 10% of the preset tension of the copper stranded wire during stranding, but is not limited thereto.

[0034] For example, assuming that the preset tension is 60N, the fluctuation range is a numerical range of 5% above and below the preset tension of the copper wire when twisted, then the fluctuation range is (0.95*60, 1.05*60) = (57, 63).

[0035] S212, if the tension reflected by the tension information of each copper wire in the tension information within the preset time period is within the corresponding fluctuation range, repeat step a, and add 1 to the initial count value each time step a is performed. When the initial count value is equal to the pre-designed value, the initial count value is reset to zero and the model acquisition device is instructed to acquire the stranded wire model; wherein, the initial value of the initial count value is 0.

[0036] It is understood that the pre-set value may be 50, 100, or a user-defined value, but is not limited thereto. If the tension reflected by each copper wire tension information in the tension information within the preset time period is within the corresponding fluctuation range, it indicates that the tension of the copper wire is stable and the possibility of quality problems in the copper stranded wire is low.

[0037] Exemplarily, the initial count value is 0 before step a is performed, the initial count value = 0 + 1 = 1 after step a is performed once, the initial count value = 1 + 1 = 2 after step a is performed twice, and so on.

[0038] S213: If the tension reflected by the copper wire tension information in the tension information within the preset time period is not within the corresponding fluctuation range, the initial count value is reset to zero and the model acquisition device is instructed to acquire the stranded wire model.

[0039] It can be understood that if the tension reflected by the copper wire tension information in the tension information is not within the corresponding fluctuation range, it means that the copper wire tension fluctuates and there is a high possibility that the copper stranded wire has quality problems.

[0040] S220, obtaining product information based on the stranded wire model.

[0041] It is understood that product information can be obtained based on the stranded wire model by analyzing the stranded wire model, marking each copper wire in the stranded wire model, calculating the diameter of each copper wire and the diameter of the copper strands, and then using image processing technology to layer the stranded wire model according to the copper wire diameters, and then calculating the gap between each adjacent layer and the gap between adjacent copper wires in the same layer. Alternatively, the stranded wire model can be sent to a user and then data transmitted by the user can be received, etc., but is not limited to this. Obtaining product information based on the stranded wire model ensures the reliability of product information and provides a basis for subsequent steps.

[0042] In one possible implementation, see Figure 2 , S220, obtains product information based on the stranded wire model, including: S221, layering the stranded wire model according to a preset thickness to obtain at least two stranded wire slices.

[0043] It is understood that the preset thickness can be 1mm, 5mm, or a user-defined value, but is not limited thereto. Layering the stranded wire model according to the preset thickness to obtain multiple stranded wire slices can enable a more detailed analysis of the internal structure of the copper stranded wire, providing a basis for subsequent steps.

[0044] S222 , obtaining at least two slice images based on each strand slice; wherein the slice image is a planar image reflecting a cross section of the strand slice.

[0045] It can be understood that at least two slice images are generated based on each strand slice, that is, each strand slice has a corresponding slice image, and the slice image reflects the cross-sectional image of the internal structure of the copper strand. The slice images generated based on the strand slices can convert the three-dimensional structure into an intuitive two-dimensional image, providing a basis for subsequent steps.

[0046] S223, input each slice image into the stranded wire recognition model respectively, and obtain multiple analysis images corresponding to each stranded wire slice; wherein the analysis image includes the slice image and at least one copper wire area and stranded wire range marked on the slice image, the copper wire area reflects the area occupied by the cross section of the copper wire on the slice image, and the stranded wire range reflects the area occupied by the cross section of the stranded wire formed by twisting the copper wires on the slice image.

[0047] It can be understood that the stranded wire recognition model is obtained through machine learning training using multiple sets of data. The multiple sets of data include first-category data and second-category data. Each set of data in the first category includes: at least one slice image including at least one copper wire cross section, and the copper wire area reflecting the cross-sectional range of each copper wire manually annotated on the slice image, and the stranded wire range reflecting the cross-sectional area of the entire copper stranded wire. Each set of data in the second category includes: at least one slice image that does not include a copper wire cross section, and a manually annotated label reflecting that the image does not include a copper wire cross section. The stranded wire range corresponds to the cross section of the produced copper stranded wire, the copper wire area corresponds to the copper wire, and the stranded wire range includes all copper wire areas. After annotating each slice image with the stranded wire recognition model, the analysis image can be quickly and accurately identified, providing a basis for subsequent steps.

[0048] S224 , obtaining at least two pieces of product information based on each analysis image.

[0049] It can be understood that the method of obtaining multiple product information corresponding to each analysis image based on each analysis image can be to first perform grayscale, noise reduction, edge enhancement and other processing on the analysis image through image preprocessing to highlight the boundaries of the copper wire area and the stranded wire range (such as using the Canny edge detection algorithm), and then calculate the diameter of each copper wire through geometric parameters (measure the diameter of the circumscribed circle of the copper wire area (such as calculating the pixel radius of the circular area multiplied by the resolution coefficient, for example, if the diameter of the circumscribed circle of the copper wire area is 100 pixels and the image resolution is 20 pixels / mm, then the copper wire diameter = 100 / 20 = 5mm)), the stranded wire diameter (measure the diameter of the stranded wire The width of the circumscribed rectangle of the wire range or the diameter of the circumscribed circle (for example, if the width of the circumscribed rectangle of the twisted wire range is 200 pixels and the image resolution is 20 pixels / mm, then the actual diameter = 200 / 20 = 10mm), inter-wire gap (calculating the center distance between adjacent copper wire areas in the same twisted layer, subtracting the sum of the copper wire radii corresponding to the two copper wire areas, and then converting it into physical size through pixel coordinates) and inter-layer gap (measuring the minimum distance between copper wire areas in adjacent twisted layers, such as the spacing between the top copper wire area of the inner layer and the bottom copper wire area of the outer layer), etc., can also be sending each analysis image to the user and then receiving data transmitted by the user, etc., but is not limited to this.

[0050] In one possible implementation, see Figure 2At S224, at least two pieces of product information are obtained based on each analysis image, including: S2241, obtaining diameter information based on each analysis image.

[0051] It is understandable that a method for obtaining multiple diameter information corresponding to each analysis image based on each analysis image can be to first perform grayscale, noise reduction, edge enhancement, etc. on the analysis image through image preprocessing to highlight the boundaries of the copper wire area and the stranded wire range (such as using the Canny edge detection algorithm), and then calculate the diameter of each copper wire through geometric parameters (measuring the diameter of the circumscribed circle of the copper wire area (such as calculating the pixel radius of the circular area multiplied by the resolution coefficient, for example, if the diameter of the circumscribed circle of the copper wire area is 100 pixels and the image resolution is 20 pixels / mm, then the copper wire diameter = 100 / 20 = 5mm)), the stranded wire diameter (measuring the width or diameter of the circumscribed rectangle of the stranded wire range, for example, if the width of the circumscribed rectangle of the stranded wire range is 200 pixels and the image resolution is 20 pixels / mm, then the actual diameter = 200 / 20 = 10mm), or sending each analysis image to the user and then receiving the data transmitted by the user, etc., but is not limited to this. Obtaining diameter information based on each analysis image can provide a basis for subsequent steps.

[0052] In one possible implementation, see Figure 3 , S2241, respectively obtain diameter information based on each analysis image, including: S22411, calculating and analyzing the diameter of the strand range in the image to obtain the strand diameter.

[0053] It can be understood that the way to calculate the diameter of the strand range in the analysis image can be to calculate the radius of the circumscribed circle of the strand range, and the strand diameter is the radius of the circumscribed circle multiplied by 2, or to calculate the area of the strand range, and the area is equivalent to the diameter of the circle: strand diameter = etc., but not limited to.

[0054] S22412, respectively calculating and analyzing the diameter of each copper wire region in the image to obtain a plurality of copper wire diameters corresponding to each copper wire region.

[0055] It can be understood that the way to calculate the diameter of the copper wire area in the analysis image can be to calculate the radius of the circumscribed circle of the copper wire area. The copper wire diameter is the radius of the circumscribed circle multiplied by 2. It can also be calculated by calculating the area of the copper wire range. According to the area equivalent to the diameter of the circle: copper wire diameter = etc., but not limited to.

[0056] S22413, the stranded wire diameter and the diameter of each copper wire are confirmed as diameter information.

[0057] It can be understood that confirming the strand diameter and the diameter of each copper wire as diameter information can provide a basis for subsequent steps.

[0058] S2242, obtaining a core point based on the twisted wire range; wherein the core point reflects the center position within the twisted wire range.

[0059] It is understood that the core point can be obtained based on the strand range by using the circumscribed circle center method (directly using the center of the circumscribed circle of the strand range as the core point), or by calculating the moments of the strand range contour using the centroid method, and then calculating the centroid coordinates from the moments to obtain the core point, etc., but is not limited to these. Determining the strand diameter and core point based on the strand range can provide a basis for subsequent steps.

[0060] S2243, a copper wire area that contacts the core point and includes the core point is identified as a central area.

[0061] It can be understood that the copper wire that contacts the core point and includes the core point is the center line. Confirming the center area can provide a basis for subsequent steps.

[0062] S2244, obtaining gap information based on the core point, the central area and the analysis image.

[0063] It is understood that the method for obtaining gap information based on the core point, central area, and analysis image can be to identify the copper wire areas that are in contact with / adjacent to / at a distance less than a preset distance from the central area as the first layer, and then identify the copper wire areas that are in contact with / adjacent to / at a distance less than a preset distance from the first layer (excluding the central area) as the second layer, and so on. Alternatively, the distance from the center of each copper wire area to the core point can be calculated, and the layers can be divided according to the distance range (for example, if the radius of the copper stranded wire is 5mm, the inner layer is the copper wire (copper wire area) less than 2.5mm from the core point, and the outer layer is the copper wire (copper wire area) greater than or equal to 2.5mm from the core point), etc., but is not limited to this. Obtaining gap information based on the core point, central area, and analysis image can provide a basis for subsequent steps.

[0064] In one possible implementation, see Figure 3 , S2244, obtaining gap information based on the core point, the central area and the analysis image, including: S22441, obtaining at least two twisted layers based on the core point, the central area, and the analysis image; wherein the twisted layer includes multiple copper wire areas.

[0065] It can be understood that the method of obtaining at least two twisted layers based on the core point, the central area and the analysis image can be to identify the copper wire area that is in contact with / adjacent to / less than a preset distance from the central area as the first layer, and then identify the copper wire area (except the central area) that is in contact with / adjacent to / less than a preset distance from the first layer as the second layer, and so on. It can also be to calculate the distance from the center of each copper wire area to the core point, and divide the layers according to the distance range (if the radius of the copper stranded wire is 5mm, the inner layer is the copper wire (copper wire area) less than 2.5mm from the core point, and the outer layer is the copper wire (copper wire area) greater than or equal to 2.5mm from the core point), etc., but is not limited to this.

[0066] In one possible implementation, see Figure 3 , S22441, based on the core point, the central area and the analysis image, at least two twisted layers are obtained, including: S224411, respectively calculating the straight-line distance between the center point of each copper wire area and the core point, and obtaining a plurality of copper-core distances corresponding to each copper wire area.

[0067] It is understood that the center point of the copper wire area can be calculated by calculating the first-order moment of the copper wire area pixels using the centroid method to determine the center of mass (center point), or by using the minimum circumscribed circle method (center fitting) with the center of the circumscribed circle as the center point, etc., but is not limited to these methods. Calculating the straight-line distance from the center point of the copper wire area to the core point to obtain the copper-core distance can provide a basis for subsequent steps.

[0068] S224412, the value range with a fluctuation of 10% above and below the distance between each copper core is confirmed as the judgment range.

[0069] It can be understood that obtaining a plurality of judgment ranges corresponding to the respective copper core distances based on the respective copper core distances can provide a basis for subsequent steps.

[0070] For example, assuming there are four copper core distances of 2mm, 2.1mm, 5mm, and 5.1mm, the judgment ranges are (2*0.9, 2*1.1) = (1.8, 2.2), (2.1*0.9, 2.1*1.1) = (1.89, 2.31), (5*0.9, 5*1.1) = (4.5, 5.5), and (5.1*0.9, 5.1*1.1) = (4.59, 5.61).

[0071] S224413, respectively confirm the intersection formed by each judgment range as the hierarchical range.

[0072] It can be understood that the intersection formed by each judgment range is to randomly select two judgment ranges that have not been selected at the same time in each judgment range to determine whether there is an intersection. If there is an intersection, the intersection is added to the first intersection table. If there is no intersection (empty set), two judgment ranges that have not been selected at the same time are randomly selected in each judgment range to determine whether there is an intersection until all judgment ranges have been selected; then two intersections that have not been selected at the same time are randomly selected from the first intersection table to determine whether there is an intersection. If there is an intersection, the intersection is added to the second intersection table. If there is no intersection (empty set), Then randomly select two intersections that have not been selected at the same time from the first intersection table to determine whether there is an intersection, until all intersections have been selected; then randomly select two intersections that have not been selected at the same time from the second intersection table to determine whether there is an intersection. If there is an intersection, add the intersection to the third intersection table. If there is no intersection (empty set), randomly select two intersections that have not been selected at the same time from the second intersection table to determine whether there is an intersection, until all intersections have been selected; and so on, until there is no intersection (empty set) in the nth intersection table, then each intersection in the nth intersection table is confirmed as a hierarchical range.

[0073] For example, assuming the judgment ranges are (1.8, 2.2), (1.89, 2.31), (4.5, 5.5), and (4.59, 5.61), the stratification ranges are (1.89, 2.2), and (4.59, 5.5).

[0074] S224414, the copper wire area corresponding to the copper core distance whose reflected value is within the same layer range is confirmed as the stranded layer.

[0075] It can be understood that the copper wires corresponding to the copper core distances whose values are reflected within the same layer range are in the same twisted layer (or the copper wires corresponding to the copper core distances whose values are reflected within the same layer range form one twisted layer).

[0076] For example, assuming there are four copper core distances of 2mm, 2.1mm, 5mm, and 5.1mm, and the layering ranges are (1.89, 2.2) and (4.59, 5.5), the copper wires (copper wire range) corresponding to the copper core distances of 2mm and 2.1mm belong to the same twisted layer, and the copper wires (copper wire range) corresponding to the copper core distances of 5mm and 5.1mm belong to another twisted layer.

[0077] S22442, respectively calculate the shortest distance between two adjacent copper wire areas in the same twisted layer to obtain multiple inter-wire gaps.

[0078] It is understood that the shortest distance between two adjacent copper wire regions in the same twisted layer can be calculated by calculating the distances between all pairs of points on the edge contours of the two copper wire regions and taking the minimum value as the inter-wire gap, or by calculating the distance between the center points of the two copper wire regions and then subtracting the sum of the radii of the two copper wire regions, etc., but is not limited to this. Calculating the shortest distances between two adjacent copper wire regions in the same twisted layer to obtain multiple inter-wire gaps can provide a basis for subsequent steps.

[0079] S22443: Analyze each copper wire region in two adjacent twisted layers respectively, calculate the shortest distance between two copper wire regions that are closest to each other and belong to different twisted layers, and obtain multiple interlayer gaps.

[0080] It can be understood that the method of calculating the shortest distance between two copper wire areas that are closest to each other and belong to different twisted layers to obtain the inter-wire gap can be to calculate the distance between all pairs of points on the edge contour of the copper wire area in one twisted layer and all copper wire areas in another adjacent twisted layer, and take the minimum value as the inter-layer gap, or to calculate the distance between all pairs of points on the edge contour of two copper wire areas that belong to different twisted layers (two copper wire areas that belong to different twisted layers and are in contact with the same radius segment) with the core point as the center and are located on the same radius segment, and take the minimum value as the inter-layer gap, etc., but is not limited to this. Calculating the shortest distance between two copper wire areas that are closest to each other and belong to different twisted layers to obtain multiple inter-layer gaps can provide a basis for subsequent steps.

[0081] S22444: Confirm each inter-line gap and each inter-layer gap as gap information.

[0082] It can be understood that confirming each inter-line gap and each inter-layer gap as gap information can provide a basis for subsequent steps.

[0083] S2245, confirm the diameter information and gap information as product information.

[0084] It can be understood that confirming the diameter information and gap information as product information can provide a basis for subsequent steps.

[0085] S300, obtaining control information based on each product information; wherein the control information is used to control a copper wire stranding machine.

[0086] It is understood that the control information derived from individual product information can be obtained by determining the difference between the diameter of each copper wire, strand diameter, interlayer gap, or interwire gap and corresponding target values to control the tension of the corresponding copper wire, or by transmitting the individual product information to a user and then receiving control data transmitted by the user, etc., but is not limited thereto. Derived control information based on individual product information can convert quality analysis results into specific production execution instructions, enabling real-time dynamic adjustment of production parameters, improving product quality issues affected by tension variations, and enhancing quality stability.

[0087] In one possible implementation, see Figure 3 , S300, obtain control information based on each product information, including: S310, determining whether the diameters of the copper wires are greater than or equal to the preset copper wire diameter, and whether the diameters of the stranded wires are greater than or equal to the preset stranded wire diameter.

[0088] It is understood that the preset copper wire diameter may be 1.0 mm, 1.5 mm, or a user-defined value based on the specifications of the produced copper stranded wire, but is not limited thereto. The preset stranded wire diameter may be 10 mm, 15 mm, or a user-defined value based on the specifications of the produced copper stranded wire, but is not limited thereto. Determining whether the diameters of all copper wires are greater than or equal to the preset copper wire diameter, and whether the diameters of all stranded wires are greater than or equal to the preset stranded wire diameter, is to determine whether the copper wire tension is excessive.

[0089] S320: If there is a copper wire with a diameter smaller than the preset copper wire diameter, obtain control information for instructing the copper wire stranding machine to reduce the tension of the copper wire corresponding to the copper wire with a diameter exceeding the preset copper wire diameter range by a preset copper wire tension value.

[0090] It is understood that the preset copper wire tension value can be 1N, 5N, or a user-defined value, but is not limited thereto. If the copper wire diameter is smaller than the preset copper wire diameter, it means that the copper wire is overstretched and the copper wire tension is too high, and the copper wire tension needs to be reduced.

[0091] Optionally, if there is a copper wire with a diameter smaller than the preset copper wire diameter, the preset copper wire diameter is subtracted from the copper wire diameter to obtain the copper diameter difference, and then the copper diameter difference is divided by the preset copper wire diameter to obtain the copper diameter ratio, and then the copper diameter ratio is multiplied by the copper wire tension control value (20N, 30N, etc., but not limited to this) to obtain the release value, and control information is obtained to instruct the copper wire stranding machine to reduce the tension of the copper wire corresponding to the copper wire diameter that exceeds the preset copper wire diameter range by the release value; wherein, the sum of the tension control value plus the default tension of the copper wire (the tension of the copper wire when production starts) is less than the breaking tensile force (breaking force) of the copper wire, and the larger the copper diameter ratio, the larger the release value.

[0092] S330: If there is a stranded wire diameter smaller than the preset stranded wire diameter, obtain control information for instructing the copper wire stranding machine to reduce the tension of all copper wires by a preset stranded wire tension value; wherein the preset stranded wire tension value is smaller than the preset copper wire tension value.

[0093] It is understood that the preset strand tension value may be 0.5N, 0.6N, or a value obtained by dividing the difference between the preset strand diameter and the strand diameter by the ratio of the preset strand diameter and the strand diameter by the strand diameter control value, but is not limited thereto. If a strand diameter is smaller than the preset strand diameter, this indicates that the overall diameter of the produced copper strand is smaller than expected, and the tension of each copper wire may be too high, requiring reduction of the copper wire tension.

[0094] S340 , determining whether all inter-layer gaps are smaller than or equal to a preset inter-layer gap, and determining whether all inter-line gaps are smaller than or equal to a preset inter-line gap.

[0095] It is understood that the preset interlayer gap can be 0.08mm, 0.15mm, or a user-defined value based on the specifications of the copper stranded wire produced, but is not limited to these. The preset interwire gap can be 0.05mm, 0.1mm, or a user-defined value based on the specifications of the copper stranded wire produced, but is not limited to these. Determining whether each interlayer gap is less than or equal to the preset interlayer gap and whether each interwire gap is less than or equal to the preset interwire gap is to determine whether the tension of the copper wire is too low.

[0096] S350, if there is an interlayer gap greater than the preset interlayer gap, control information is obtained for instructing the copper wire stranding machine to increase the tension of the copper wire corresponding to the outer twisted layer of the two twisted layers corresponding to the interlayer gap greater than the preset interlayer gap by a preset interlayer value.

[0097] It is understood that the preset interlayer value can be 1N, 5N, or a value obtained by multiplying the ratio of the difference between the interlayer gap and the preset interlayer gap by the preset interlayer gap, but is not limited to this. If there is an interlayer gap greater than the preset interlayer gap, it means that the tension of the outer copper wire is low, resulting in the inner layer strands being tight and the outer layer strands being loose, forming an "onion-shaped" layer. The outer layer strands cannot fit the inner layer, resulting in gaps, and the copper wire tension needs to be increased.

[0098] S360: If the inter-wire gap is greater than the preset inter-wire gap, control information is obtained for instructing the copper wire stranding machine to increase the tension of the two copper wires corresponding to the inter-wire gap greater than the preset inter-wire gap by a preset inter-wire value.

[0099] It is understood that the preset inter-wire value of 1N or 5N may also be a value obtained by multiplying the ratio of the difference between the inter-wire gap and the preset inter-wire gap by the inter-wire gap control value, but is not limited thereto. If the inter-wire gap is greater than the preset inter-wire gap, it means that the copper wire tension is insufficient, resulting in the copper wire being unable to be effectively restrained. The copper wire may deviate from the normal twisting trajectory due to centrifugal force or external force, and the copper wire tension needs to be increased.

[0100] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0101] Corresponding to the copper wire twisting method described in the above embodiment, the embodiment of the present application further provides a copper wire twisting system, and each unit of the system can implement each step of the copper wire twisting method. Figure 4 A structural block diagram of a copper wire stranding system provided in an embodiment of the present application is shown. For ease of explanation, only the parts related to the embodiment of the present application are shown.

[0102] Reference Figure 4 , the system comprises: An acquisition unit is used to acquire production information; wherein the production information includes a stranded wire model and tension information, the stranded wire model reflects a three-dimensional model of a portion of the produced copper stranded wire, and the tension information includes at least one real-time monitoring unit for reflecting the tension of the copper wire during the stranding process.

[0103] An analysis unit is used to obtain at least one product information based on production information; wherein the product information includes diameter information and gap information, the diameter information includes at least one copper wire diameter and at least one twisted wire diameter, the gap information includes at least one interlayer gap and at least one interwire gap, the interlayer gap reflects the gap between two adjacent twisted layers, and the interwire gap reflects the gap between two adjacent copper wires in the same twisted layer.

[0104] The control unit is used to obtain control information based on the information of each product; wherein the control information is used to control the copper wire stranding machine.

[0105] It should be noted that the information interaction, execution process, etc. between the above-mentioned units are based on the same concept as the method embodiment of this application. Their specific functions and technical effects can be found in the method embodiment part and will not be repeated here.

[0106] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the system can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0107] The embodiment of the present application also provides a copper wire stranding machine, Figure 5 This is a schematic diagram of the structure of a copper wire stranding machine provided in one embodiment of the present application. Figure 5 As shown, the copper wire stranding machine of this embodiment includes a control device 6. The control device 6 includes: at least one processor 60 ( Figure 5 Only one is shown), at least one memory 61 ( Figure 5 Only one is shown in the figure) and a computer program 62 stored in the at least one memory 61 and executable on the at least one processor 60. When the processor 60 executes the computer program 62, the copper wire stranding machine implements the steps of any of the above-mentioned copper wire stranding method embodiments, or implements the functions of each unit in the above-mentioned system embodiments.

[0108] For example, the computer program 62 may be divided into one or more modules / units, which are stored in the memory 61 and executed by the processor 60 to implement the present application. The one or more modules / units may be a series of computer program instruction segments capable of implementing specific functions, and the instruction segments are used to describe the execution process of the computer program 62 in the control device 6.

[0109] The control device 6 can be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The control device 6 can include, but is not limited to, a processor 60 and a memory 61. It will be understood by those skilled in the art that Figure 5 This is only an example of a copper wire twisting machine and does not constitute a limitation on the copper wire twisting machine. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, it may also include input and output devices, network access devices, buses, etc.

[0110] The processor 60 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0111] In some embodiments, the memory 61 may be an internal storage unit of the control device 6, such as a hard drive or memory of the control device 6. In other embodiments, the memory 61 may also be an external storage device of the control device 6, such as a plug-in hard drive, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash memory card, etc. equipped on the control device 6. Furthermore, the memory 61 may include both the internal storage unit of the control device 6 and an external storage device. The memory 61 is used to store an operating system, application programs, a boot loader, data, and other programs, such as the program code of the computer program. The memory 61 may also be used to temporarily store data that has been output or is about to be output.

[0112] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0113] An embodiment of the present application provides a computer program product. When the computer program product is run on a copper wire stranding machine, the copper wire stranding machine implements the steps of any of the above method embodiments.

[0114] If the integrated unit is implemented as a software functional unit and sold or used as a standalone product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the process steps in the above-mentioned method embodiments by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When executed by a processor, the computer program can implement the steps of each of the above-mentioned method embodiments. The computer program includes computer program code, which can be in source code form, object code form, executable file, or some intermediate form. The computer-readable medium can include at least: any entity or device capable of carrying the computer program code to a copper wire stranding machine, a recording medium, computer memory, read-only memory (ROM), random access memory (RAM), an electrical carrier signal, a telecommunications signal, and a software distribution medium. Examples include a USB flash drive, a removable hard drive, a magnetic disk, or an optical disk. In some jurisdictions, based on legislation and patent practice, computer-readable media cannot be electrical carrier signals or telecommunications signals.

[0115] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0116] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0117] In the embodiments provided in the present application, it should be understood that the disclosed copper wire stranding system, copper wire stranding machine and method can be implemented in other ways. For example, the copper wire stranding system and copper wire stranding machine embodiments described above are merely schematic. For example, the division of the modules or units is merely a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0118] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0119] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A copper wire twisting method, characterized in that: include: Acquiring production information; wherein the production information includes a strand model and tension information, the strand model reflecting a three-dimensional model of a portion of the produced copper strands, and the tension information including at least one real-time monitoring device reflecting the tension of the copper wire during the stranding process; At least one product information is obtained based on the production information; wherein the product information includes diameter information and gap information, the diameter information includes at least one copper wire diameter and at least one stranded wire diameter, the gap information includes at least one interlayer gap and at least one interwire gap, the interlayer gap reflects the gap between two adjacent stranded layers, and the interwire gap reflects the gap between two adjacent copper wires in the same stranded layer; Control information is obtained based on the respective product information; wherein the control information is used to control a copper wire stranding machine.

2. The copper wire stranding method according to claim 1, wherein: The obtaining of product information based on the production information includes: The stranded wire model is obtained based on the tension information; wherein the stranded wire model is a three-dimensional model reflecting the internal structure of the copper stranded wire obtained by the model acquisition device of the copper wire stranding machine; The product information is obtained based on the strand model.

3. The copper wire stranding method according to claim 2, wherein: The obtaining of the stranded wire model based on the tension information includes: Step a: determining whether the tension reflected by each of the copper wire tension information in the tension information is within a corresponding fluctuation range within a preset time period; wherein the fluctuation range is a numerical range that fluctuates by 5% based on the preset tension of the copper wire when twisted; If the tension reflected by each of the copper wire tension information in the tension information within the preset time period is within the corresponding fluctuation range, repeating step a, and adding 1 to the initial count value each time step a is performed, and when the initial count value is equal to the pre-designed value, the initial count value is reset to zero and the model acquisition device is instructed to acquire the stranded wire model; wherein the initial value of the initial count value is 0; If the tension reflected by the copper wire tension information in the tension information within the preset time period is outside the corresponding fluctuation range, the initial count value is reset to zero and the model acquisition device is instructed to acquire the stranded wire model.

4. The copper wire stranding method according to claim 2, wherein: The obtaining of the product information based on the stranded wire model includes: Layering the stranded wire model according to a preset thickness to obtain at least two stranded wire slices; Obtaining at least two slice images based on each of the strand slices; wherein the slice image is a planar image reflecting a cross section of the strand slice; Inputting each of the slice images into a stranded wire recognition model, respectively, to obtain a plurality of analysis images corresponding to each of the stranded wire slices; wherein the analysis image includes the slice image and at least one copper wire region and stranded wire range marked on the slice image, the copper wire region reflecting the region occupied by the cross section of the copper wire in the slice image, and the stranded wire range reflecting the region occupied by the cross section of the stranded wire formed by twisting the copper wires in the slice image; At least two pieces of product information are obtained based on each of the analysis images.

5. The copper wire stranding method according to claim 4, wherein: The obtaining of at least two pieces of product information based on each of the analysis images includes: obtaining the diameter information based on each of the analysis images; Obtaining a core point based on the stranded wire range; wherein the core point reflects the center position within the stranded wire range; Identify the copper wire area that contacts the core point and includes the core point as the central area; obtaining the gap information based on the core point, the central area, and the analysis image; The diameter information and the gap information are confirmed as the product information.

6. The copper wire stranding method according to claim 4, wherein: The obtaining the diameter information based on each of the analysis images includes: Calculating the diameter of the stranded wire range in the analysis image to obtain the stranded wire diameter; respectively calculating the diameter of each copper wire region in the analysis image to obtain a plurality of copper wire diameters respectively corresponding to each copper wire region; The strand diameter and each of the copper wire diameters are identified as the diameter information.

7. The copper wire stranding method according to claim 5, wherein: The obtaining of the gap information based on the core point, the central area, and the analysis image includes: At least two twisted layers are obtained based on the core point, the central area and the analysis image; wherein the twisted layer includes a plurality of copper wire areas; respectively calculating the shortest distance between two adjacent copper wire regions in the same twisted layer to obtain a plurality of inter-wire gaps; Analyze each of the copper wire regions in two adjacent twisted layers respectively, calculate the shortest distance between two copper wire regions that are closest to each other and belong to different twisted layers, and obtain a plurality of interlayer gaps; The inter-line gaps and the inter-layer gaps are identified as the gap information.

8. The copper wire stranding method according to claim 7, wherein: The step of obtaining at least two twisted layers based on the core point, the central area, and the analysis image comprises: Calculating the straight-line distance between the center point of each copper wire area and the core point respectively, to obtain a plurality of copper-core distances corresponding to each copper wire area; The value range with a fluctuation of 10% above and below the copper core distance is respectively determined as the judgment range; The intersections of the respective judgment ranges are respectively determined as the hierarchical ranges; The copper wire area corresponding to the copper core distance whose reflected value is within the same layer range is confirmed as the twisted layer.

9. The copper wire stranding method according to claim 1, wherein: The obtaining of control information based on each of the product information includes: Determining whether the diameter of each copper wire is greater than or equal to a preset copper wire diameter, and whether the diameter of each stranded wire is greater than or equal to a preset stranded wire diameter; If the copper wire diameter is smaller than the preset copper wire diameter, the control information for instructing the copper wire stranding machine to reduce the tension of the copper wire corresponding to the copper wire diameter exceeding the preset copper wire diameter range by the preset copper wire tension value is obtained; If the stranded wire diameter is smaller than the preset stranded wire diameter, the control information for instructing the copper wire stranding machine to reduce the tension of all copper wires by a preset stranded wire tension value is obtained; wherein the preset stranded wire tension value is smaller than the preset copper wire tension value; Determining whether each of the inter-layer gaps is smaller than or equal to a preset inter-layer gap, and determining whether each of the inter-line gaps is smaller than or equal to a preset inter-line gap; If the interlayer gap exists and is larger than the preset interlayer gap, the control information for instructing the copper wire stranding machine to increase the tension of the copper wire corresponding to the outer twisted layer of the two twisted layers corresponding to the interlayer gap larger than the preset interlayer gap by the preset interlayer value is obtained; If the inter-wire gap exists and is greater than the preset inter-wire gap, the control information is obtained for instructing the copper wire stranding machine to increase the tension of the two copper wires corresponding to the inter-wire gap greater than the preset inter-wire gap by a preset inter-wire value.

10. A copper wire stranding machine comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method according to any one of claims 1 to 9 is implemented.

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