A control method and heating system for heating equipment used in cable production

Abstract

The invention discloses a control method and a heating system for heating equipment for cable production. The cable is passed through the heating equipment, and both ends of the cable are fixedly mounted on a clamping jaw assembly respectively. The heating equipment is operated to drive a plurality of heating plates to gather toward the middle to heat the cable. During the heating process, a first pressure value of a heating portion of the cable and second pressure values ​​at both ends of the cable are collected to construct a mechanical three-dimensional model of the cable. The mechanical three-dimensional model is analyzed by a finite element analysis method to control the movement of the heating plate or the clamping jaw assembly to control the pressing force of the corresponding heating plate on the cable, and the tensioning force of the clamping jaw assembly on the cable. The mechanical behavior of the cable during the heating process can be understood and predicted, thereby achieving fine control of the heating process, dynamically adjusting the heating strategy according to the actual situation of the cable, optimizing the heating effect of the cable, and improving production efficiency and cable quality.

Description

Technical Field

[0001] The present invention relates to the technical field of heating equipment, and in particular to a control method and a heating system for heating equipment used in cable production. Background Art

[0002] In the modern wire and cable manufacturing industry, the heating treatment of cables is a crucial process step, which plays a decisive role in improving the performance of cables, such as mechanical strength, temperature resistance and chemical corrosion resistance. The heating process usually involves the cross-linking and plasticization of cables, which need to be carried out under strictly controlled temperature conditions; with the development of technology and the increasing market demand for high-performance cables, the requirements for the control accuracy and efficiency of the heating process are also constantly improving.

[0003] The cable heating in the prior art usually adopts a sleeve heating method. In this method, the cable passes through a heating pipe of fixed size. A heating element is arranged inside the pipe. The cable is heated by heat exchange and the cable is pressurized by the inner wall of the sleeve. However, this conventional heating method has some significant disadvantages. Since the size of the sleeve is usually fixed, and the cable tends to expand during the heating process, the cable after heat expansion will be squeezed by the inner wall of the sleeve to generate interaction force (the size will be restored after cooling), resulting in unnecessary stress in the cable. Although the cooling process will eliminate some stress, some residual stress will still remain, which may affect the final quality of the cable. In addition, the fixed-size sleeve is not easy to adapt to cables of different diameters and types, which reduces the flexibility and adaptability of the heating process. This heating method without flexible adjustment limits the further improvement of production efficiency and cable quality.

[0004] In view of this, it is necessary to improve the cable heating method in the prior art to solve the technical problem of low production quality caused by expansion and deformation of the cable during the heating process. Summary of the invention

[0005] The object of the present invention is to provide a control method and a heating system for heating equipment for cable production to solve the above technical problems.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A control method for a heating device for cable production, the heating device comprising an outer annular plate, a plurality of heating plates being arranged on the inner side of the outer annular plate, and the plurality of heating plates being arranged along a circumferential direction;

[0008] The control method comprises:

[0009] Pass the cable through the heating device, and fix both ends of the cable on the clamping jaw assembly respectively;

[0010] The heating device is running to drive the plurality of heating plates to gather toward the middle to heat the cable;

[0011] During the heating process, the first pressure value of the cable heating part is collected in real time through the pressure sensor sheet on each heating plate, and the second pressure value of the two ends of the cable is obtained by the sensor component on the clamping jaw component, and the mechanical three-dimensional model of the cable is constructed through the first pressure value and the second pressure value;

[0012] Analyzing the mechanical three-dimensional model by finite element analysis to obtain mechanical correction parameters so as to formulate a hot pressing plan for the cable, wherein the hot pressing plan includes control instructions for the heating plate and the clamping jaw assembly;

[0013] The heating plate or the clamping jaw assembly is controlled to move by the control instruction to adjust the hot pressing process of the heating device on the cable.

[0014] Optionally, constructing a mechanical three-dimensional model of the cable by using the first pressure value and the second pressure value specifically includes:

[0015] Obtain standard specification information of the cable by querying the specification parameter table of the cable; the standard specification information includes the diameter and material type of the cable;

[0016] According to the obtained standard specification information of the cable, a standard three-dimensional model of the cable is constructed in the modeling software unit;

[0017] Collecting the position parameters of each heating plate and converting them into the position information of the corresponding heating plate relative to the center line of the cable;

[0018] Inputting the first pressure value collected from the pressure sensor sheet on each of the heating plates into the standard three-dimensional model, matching each first pressure value with the position information of the corresponding heating plate through the modeling software unit, assigning a mechanical value to simulate the pressure value of the cable in each heating area, and establishing an initial mechanical three-dimensional model;

[0019] The data processing unit performs a preliminary mechanical simulation analysis on the established initial mechanical three-dimensional model, and analyzes the force values ​​of the cable at the contact points with each of the heating plates to identify the first abnormal pressure area.

[0020] Optionally, the step of constructing a mechanical three-dimensional model of the cable by using the first pressure value and the second pressure value further includes:

[0021] collecting a second pressure value obtained from a sensor assembly on the clamping jaw assembly;

[0022] In the three-dimensional model, the initial mechanical three-dimensional model is reinforced according to the second pressure value to simulate the actual tension or compression force on both ends of the cable, so as to construct a complete mechanical three-dimensional model;

[0023] The complete mechanical three-dimensional model is subjected to mechanical simulation analysis again to identify the second abnormal pressure area, and the first abnormal pressure area and the second abnormal pressure area are integrated to obtain pressure deformation information.

[0024] Optionally, the mechanical three-dimensional model is analyzed by finite element analysis to obtain mechanical correction parameters, and a hot pressing plan for the cable is formulated, wherein the hot pressing plan includes control instructions for the heating plate or the clamping jaw assembly; specifically, the plan includes:

[0025] Starting a finite element analysis program and setting operating parameters of the finite element analysis program, wherein the operating parameters include material properties and environmental conditions; the material properties include thermal expansion coefficient and elastic modulus of the cable material, and the environmental conditions include temperature and heating rate;

[0026] Importing the mechanical three-dimensional model of the cable into the finite element analysis program, the finite element analysis program simulates the mechanical behavior of the cable during the actual heating process, as well as the stress and deformation parameters generated by temperature changes;

[0027] According to the mechanical behavior, stress and deformation parameters obtained by analysis, the potential deformation area of ​​the mechanical three-dimensional model is identified, and the potential deformation area is compensated to the pressure deformation information to obtain the complete pressure deformation information through integration;

[0028] Extracting key elements of complete pressure deformation information, and setting mechanical correction parameters that need to be corrected for the key elements according to the extracted key elements; the key elements include the maximum stress value and deformation degree of the deformation area;

[0029] The set mechanical correction parameters are uploaded to a control unit, and the mechanical correction parameters are converted into control instructions that match the control of the heating plate or the clamping jaw assembly.

[0030] Optionally, the heating plate or the clamping jaw assembly is controlled to move by the control instruction to adjust the hot pressing process of the heating device on the cable; specifically including:

[0031] According to the control instruction, the position of the heating plate in the corresponding direction is adjusted; if the pressing force of the corresponding area needs to be increased, the heating plate is controlled to move away from the cable; if the pressing force of the corresponding area needs to be reduced, the heating plate is controlled to move towards the cable;

[0032] Identifying the control requirements for the clamping jaw assembly in the control instruction, and adjusting the tensioning force of the clamping jaw assembly to maintain or change the tensioning state of the cable;

[0033] The first pressure value of the cable heating part and the second pressure value at both ends of the cable are continuously monitored during the heating process; if it is found that the first pressure value or the second pressure value exceeds the preset optimal range, the control unit updates the control instruction to adjust the movement of the heating plate and the clamping jaw assembly.

[0034] Optionally, a first pressure regulating assembly is provided between each of the heating plates and the outer annular plate, and the first pressure regulating assembly is used to adjust the distance between the heating plate and the outer annular plate;

[0035] A pressure sensing sheet is arranged on the inner wall of the heating plate, and the pressure sensing sheet is connected to a data acquisition unit.

[0036] Optionally, the first voltage regulating assembly includes a first driving motor disposed on the outer annular plate, a screw rod is disposed on an output shaft of the first driving motor, a nut member is threadedly connected to the screw rod, and the nut member is slidably connected to one side of the first driving motor through a limit block;

[0037] A connecting block is arranged on the nut member, and an elastic buffer member is arranged between the connecting block and the nut member; the connecting block is provided with a connecting rod, and one end of the connecting rod is connected to the heating plate.

[0038] Optionally, a clamping mechanism is provided on both sides of the heating device, the clamping mechanism comprises a clamping claw assembly for fixing the cable, and a second voltage regulating assembly for driving the clamping claw assembly to move, and the second voltage regulating assembly is provided with a sensor assembly for detecting the tension of the cable;

[0039] The clamp assembly includes a plurality of clamp bodies arranged at intervals, a through hole for the cable to pass through is formed between the plurality of clamp bodies, a locking member is arranged outside the clamp body, and the locking member is used to drive the plurality of clamp bodies to move closer to or away from each other so as to adjust the diameter of the through hole.

[0040] Optionally, the second voltage regulating assembly includes a second drive motor and a guide rail assembly, the clamping mechanism is slidably connected to the clamping mechanism, and the driving end of the second drive motor is connected to the clamping mechanism.

[0041] The present invention also provides a heating system for cable production, which is used to implement the control method of the heating device for cable production as described above, and the heating system comprises:

[0042] The heating device comprises an outer annular plate, a plurality of heating plates are arranged on the inner side of the outer annular plate, and the plurality of heating plates are arranged along the circumferential direction; a pressure sensing sheet is arranged on the heating plate;

[0043] The clamping mechanism comprises two spaced apart clamping jaw assemblies, the clamping jaw assemblies are used to fix the cable, and the clamping jaw assemblies are provided with a sensor assembly;

[0044] A data acquisition unit, connected to the pressure sensing sheet and the sensing assembly, for acquiring a first pressure value of a heating portion of the cable in real time through the pressure sensing sheet, and acquiring a second pressure value at both ends of the cable through the sensing assembly;

[0045] A modeling software unit, configured to construct a mechanical three-dimensional model of the cable according to the first pressure value and the second pressure value;

[0046] A data processing unit, used for performing mechanical simulation analysis on the mechanical three-dimensional model, obtaining mechanical correction parameters through analysis, and converting the mechanical correction parameters into control instructions;

[0047] The control unit is used to issue a control instruction to control the movement of the heating plate or the clamping jaw assembly.

[0048] Compared with the prior art, the present invention has the following beneficial effects: when working, the cable passes through the heating device, and its two ends are respectively fixedly mounted on the clamping jaw assembly, the heating device is started, and a plurality of heating plates arranged along the circumferential direction are driven to gather toward the middle of the cable, thereby starting to heat the cable; during the entire heating process, the pressure sensor sheet on each heating plate is used to collect the first pressure value of the cable heating part in real time, and the second pressure value at both ends of the cable is obtained through the sensor assembly on the clamping jaw assembly, and the two pressure values ​​are further combined to construct a mechanical three-dimensional model of the cable; the constructed mechanical three-dimensional model is analyzed in detail by the finite element analysis method, so as to obtain the required mechanical correction parameters, and according to the mechanical correction parameters A heat pressing plan including control instructions is formulated for the cable, and the position and movement of the heating plate or the clamping jaw assembly are adjusted according to the control instructions to adjust the heat pressing process of the cable by the heating equipment; the method optimizes the heating process of the cable through precise temperature and pressure control, ensures the physical properties and dimensional accuracy of the cable during the production process, collects and analyzes real-time data, and further accurately adjusts the heating and pressure conditions in combination with the finite element analysis method, so that the clamping jaw assembly and the heating plate make dynamic adaptive adjustments during the heating process, thereby minimizing internal stress and possible damage, reducing material stress, and improving product quality. Through this dynamic adjustment method, the heating strategy is optimized according to real-time feedback, and the production efficiency and manufacturing accuracy of the cable are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0050] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0051] Figure 1 This is a schematic diagram of the structure of the heating device of the first embodiment;

[0052] Figure 2 This is a schematic diagram of the structure of the clamping mechanism and the heating device of the first embodiment;

[0053] Figure 3 This is one of the flow charts of the control method of the heating device for cable production according to the first embodiment;

[0054] Figure 4 This is the second flow chart of the control method of the heating device for cable production according to the first embodiment.

[0055] Illustrations: 100, heating device; 110, outer ring plate; 120, heating plate; 130, first voltage regulating assembly; 131, first drive motor; 132, nut member; 133, limit block; 134, connecting block; 135, connecting rod; 200, clamping mechanism; 210, clamping jaw assembly; 220, second voltage regulating assembly; 211, clamping jaw body. DETAILED DESCRIPTION

[0056] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0058] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0059] Embodiment 2:

[0060] Combination Figures 1 to 4 As shown, an embodiment of the present invention provides a control method for a heating device 100 for cable production, wherein the heating device 100 comprises an outer annular plate 110, and a plurality of heating plates 120 are arranged on the inner side of the outer annular plate 110, and the plurality of heating plates 120 are arranged along the circumferential direction;

[0061] Combination Figure 3 As shown, the control method includes:

[0062] S1, pass the cable through the heating device 100, and fix both ends of the cable on the clamping jaw assembly 210 respectively;

[0063] The cable is installed in the heating device 100, which is the basis of the entire heating process. The cable passes through the outer ring plate 110, and its two ends are firmly fixed by the clamping jaw assembly 210; this fixing method not only ensures the position stability of the cable during the heating process, but also helps to prevent uneven heating caused by cable displacement or distortion, thus laying the foundation for the subsequent heating process. At the same time, the clamping jaw assembly 210 is provided with a second adjustment assembly and a sensor assembly; the second adjustment assembly is used to adjust the tension at both ends of the cable, and the sensor assembly is used to detect the tension of the cable, so as to achieve accurate control of the parameters in the cable processing process.

[0064] S2, the heating device 100 is running, driving a plurality of heating plates 120 to gather toward the middle to heat the cable;

[0065] The heating process is started by driving several heating plates 120 to gather towards the center of the cable, so as to evenly heat the cable. This gathering action can ensure that the cable receives equal heat from all directions, which is the key to achieving uniform heating treatment of the cable. This step not only involves the physical position adjustment of the heating plate 120, but also includes the precise control of the heating temperature and time.

[0066] S3, during the heating process, the first pressure value of the cable heating part is collected in real time through the pressure sensor sheet on each heating plate 120, and the second pressure value of the two ends of the cable is obtained by the sensor component on the clamping jaw assembly 210, and the mechanical three-dimensional model of the cable is constructed through the first pressure value and the second pressure value;

[0067] During the heating process, the third step of collecting pressure data in real time and building a mechanical three-dimensional model of the cable is the part with the highest technical content in the entire control method; the pressure changes of the cable are monitored in real time through sensors on the heating plate 120 and the clamping jaw assembly 210, and these data are used to build a mechanical three-dimensional model reflecting the heating state of the cable to accurately simulate the physical behavior of the cable during the heating process. This model provides detailed information for understanding the physical behavior of the cable during the heating process and provides data support for subsequent optimization and adjustment.

[0068] S4, analyzing the mechanical three-dimensional model by finite element analysis to obtain mechanical correction parameters to formulate a hot pressing plan for the cable, the hot pressing plan including control instructions for the heating plate 120 and the clamping jaw assembly 210;

[0069] The mechanical three-dimensional model constructed in the previous step is deeply analyzed by finite element analysis to obtain mechanical correction parameters. This analysis not only provides the stress and deformation of each part of the cable during the heating process, but also makes it possible to adjust the hot pressing plan according to the analysis results to control the specific actions of the heating plate 120 and the clamping jaw assembly 210, so as to accurately control the pressure and position of the heating plate 120 and the tension of the clamping jaw assembly 210, to ensure that the deformation of the cable during the heating process is effectively controlled, to avoid excessive compression or stretching, and to reduce the risk of damage caused by stress concentration; the key to obtaining mechanical correction parameters is to be able to guide the formulation of the hot pressing plan, to ensure that the applied thermal treatment is both uniform and precise, and meets the preset product quality standards.

[0070] S5, controlling the movement of the heating plate 120 or the clamping jaw assembly 210 through control instructions to control the pressing force of the corresponding heating plate 120 on the cable, and the tensioning force of the clamping jaw assembly on the cable.

[0071] The heating plate 120 and the clamping jaw assembly 210 are dynamically adjusted according to the obtained control instructions. This step directly affects the effect of the heating process. The pressing force of the heating plate 120 and the tensioning force of the clamping jaw assembly 210, as well as the position adjustment, are precisely controlled to ensure that the cables are uniformly treated during the heating process. This not only improves the heating efficiency and the processing quality of the cables, but also responds to possible deviations during the heating process through real-time monitoring and adjustment mechanisms, thereby ensuring the consistency and reliability of the final product.

[0072] It should be noted that the cable heating process can be roughly divided into three stages: initial heating, hot pressing and pressure holding, and cooling process. The deformation of the cable is different in each stage.

[0073] Initial heating phase:

[0074] Control of the heating plate 120: In the initial heating stage, the heating plate 120 is quickly heated to a predetermined temperature to start the heating process of the cable, and the control system adjusts the heating intensity of the heating plate 120 according to the material properties of the cable and the required heating rate. The heating plate 120 needs to evenly distribute heat energy to avoid local overheating. At this time, the control system monitors the surface temperature of the cable to ensure uniform heating. If a temperature difference is detected, the heating intensity or position of the heating plate 120 is adjusted accordingly.

[0075] Control of the clamp assembly: During initial heating, the clamp assembly 210 maintains a stable tension to prevent the cable from loosening due to thermal expansion. The control system predicts the expansion amount based on the thermal expansion coefficient of the cable and adjusts the position of the clamp accordingly (specifically, from both ends to the middle) to accommodate the contraction of the cable ends. If the actual expansion of the cable is greater than expected, the control system will adjust the clamp assembly 210 in real time to increase the tension to ensure the linearity and tension of the cable during the heating process.

[0076] Summary: In the initial heating stage, the diameter of the cable heating section expands outward, and the lengths of both ends shrink toward the middle. The control direction is that the heating plate 120 expands outward and the clamping jaw assembly 210 moves toward the middle to adapt to the changes and reduce the generation of stress.

[0077] Hot pressing and holding stage:

[0078] Dynamic adjustment of the heating plate 120: During the hot pressing and holding stage, the temperature of the heating plate 120 needs to be stably maintained at a specific value to promote uniform cross-linking or curing of the cable material. The control system will carefully adjust the temperature of the heating plate 120 to respond to slight changes in the temperature inside the cable. Depending on the deformation of the cable, such as uneven expansion, the heating plate 120 may need to be fine-tuned to change the heating area or adjust the local heating intensity to ensure uniform material performance.

[0079] Precise control of the clamp assembly 210: The pressure holding stage requires the cable to maintain a certain tension to avoid unnecessary deformation due to thermal expansion. The clamp assembly 210 may need to fine-tune the position according to the real-time data of the cable thermal expansion to maintain constant tension. For specific materials, if stress is required to affect their physical or chemical properties, the control of the clamp assembly 210 will be more complicated, and the tension needs to be adjusted in real time to adapt to the performance changes of the material during the heating process.

[0080] In summary, during the hot pressing and holding stage, the cable requires constant pressure conditions, and the heating plate 120 and the clamping jaw assembly 210 should maintain a constant state except for fine-tuning.

[0081] Cooling process stages (gradual cooling):

[0082] During the cooling process, the heating plate 120 needs to gradually reduce its temperature to allow the cable material to cool gradually and avoid internal stress caused by rapid cooling. The control system accurately controls the cooling rate of the heating plate 120 according to the thermal treatment requirements and cooling curve of the material.

[0083] During the cooling process, the diameter of the cable heating section shrinks inwards and the lengths of both ends extend to both sides. At this time, the control direction is that the heating plate 120 is appropriately pressed inwards and the clamping jaw assemblies 210 move away from each other to adapt to the changes and reduce the generation of stress.

[0084] The working principle of the present invention is as follows: when working, the cable passes through the heating device 100, and its two ends are respectively fixedly mounted on the clamping jaw assembly 210, the heating device 100 is started, and a plurality of heating plates 120 arranged along the circumferential direction are driven to gather toward the middle of the cable, thereby starting to heat the cable; during the entire heating process, the pressure sensor sheet on each heating plate 120 is used to collect the first pressure value of the cable heating part in real time, and the second pressure value at both ends of the cable is obtained through the sensor assembly on the clamping jaw assembly 210, and the two pressure values ​​are further combined to construct a mechanical three-dimensional model of the cable; the constructed mechanical three-dimensional model is analyzed in detail by the finite element analysis method, so as to obtain the required mechanical correction parameters, which are then converted into control instructions, and the heating plates 120 are adjusted according to the control instructions. Or the position and movement of the clamping assembly 210, so as to accurately control the clamping force of the corresponding heating plate 120 on the cable, and adjust the tensioning force applied by the clamping assembly 210 to the cable, so as to optimize the heating process; compared with the heating method in the prior art, this method optimizes the heating process of the cable through fine temperature and pressure control, ensures the physical properties and dimensional accuracy of the cable during the production process, collects and analyzes real-time data, and combines the finite element analysis method to further accurately adjust the heating and pressure conditions, so that the clamping assembly 210 and the heating plate 120 make dynamic adaptive adjustments during the heating process, thereby minimizing internal stress and possible damage, reducing material stress, and improving product quality. Through this dynamic adjustment method, the heating strategy is optimized according to real-time feedback, and the production efficiency and manufacturing accuracy of the cable are improved.

[0085] In this embodiment, it is specifically described that step S3 specifically includes:

[0086] S31, obtaining standard specification information of the cable by querying a specification parameter table of the cable; the standard specification information includes a diameter and a material type of the cable;

[0087] First, by querying the cable specification parameter table, we can obtain the standard specification information of the cable, including the cable diameter and material type. This is the basis for building an accurate 3D model, ensuring that the physical properties of the model are completely consistent with the cables used in actual production. Accurate specification information is crucial for the subsequent mechanical analysis and pressure simulation of the model, because cables of different material types and sizes will exhibit completely different mechanical behaviors under the same conditions.

[0088] S32, constructing a standard three-dimensional model of the cable in a modeling software unit according to the acquired standard specification information of the cable;

[0089] Based on the standard specification information obtained, a standard 3D model of the cable is constructed in the modeling software. This step converts the specification parameters into an operational virtual model that can be used to simulate the physical response of the cable in subsequent steps. At this stage, the accuracy of the model has a direct impact on the results of the entire analysis, because subsequent simulations and analyses are based on this model.

[0090] S33, collecting the position parameters of each heating plate 120, and converting them into the position information of the corresponding heating plate 120 relative to the center line of the cable;

[0091] The position parameters of each heating plate 120 are collected and converted into the orientation information of the heating plate 120 relative to the center line of the cable. This step ensures that the position of the heating plate 120 matches the layout in the actual heating device 100, which is critical for simulating the stress condition of the cable during the heating process. The correct orientation information allows the model to accurately reflect the force distribution exerted by the heating plate 120 on the cable, which is crucial for analyzing the changes in the physical state of the cable after heating.

[0092] S34, inputting the first pressure value collected from the pressure sensor sheet on each heating plate 120 into the standard three-dimensional model, matching each first pressure value with the position information of the corresponding heating plate 120 through the modeling software unit, assigning a mechanical value, so as to simulate the pressure value of the cable in each heating area, and establish an initial mechanical three-dimensional model;

[0093] The first pressure value collected from the pressure sensor sheet on the heating plate 120 is input into the constructed standard three-dimensional model. Each pressure value is matched with the corresponding position information of the heating plate 120 through the modeling software and mechanically assigned to simulate the actual pressure on the cable in each heating area. This step is the key to achieving accurate model simulation. By directly applying the actual measured pressure value to the three-dimensional model, the three-dimensional model is allowed to show the response of the cable under mechanical conditions, providing a basis for the final mechanical analysis and optimization.

[0094] S35, performing a preliminary mechanical simulation analysis on the established initial three-dimensional mechanical model through a data processing unit, analyzing the force values ​​of the cables at the contact points with each heating plate 120, so as to identify the abnormal pressure area.

[0095] The data processing unit performs a preliminary mechanical simulation analysis on the initially constructed three-dimensional mechanical model. The specific goal is to analyze the stress of the cable at the contact point with the heating plate 120. This analysis helps to identify abnormal pressure areas that appear during the heating process. Abnormal pressure areas will cause uneven heating or stress concentration in the cable, affecting the final cable production quality. By identifying these problem areas early, timely adjustments can be made to optimize the entire heating process.

[0096] S36, collecting a second pressure value obtained from the sensor assembly on the clamping jaw assembly 210;

[0097] The second pressure value is collected from the sensor on the clamping jaw assembly 210, which corresponds to the actual tension or compression force on both ends of the cable. This step is the basis for subsequent model reinforcement and provides mechanical data under actual working conditions at both ends of the cable. Mechanical data is crucial for a complete understanding of the stress state of the cable during the production process and its possible impact on the heating effect.

[0098] S37, in the three-dimensional model, reinforcing the initial mechanical three-dimensional model according to the second pressure value to simulate the actual tension or compression force on both ends of the cable, and constructing a complete mechanical three-dimensional model;

[0099] The initial mechanical three-dimensional model is reinforced according to the second pressure value obtained from the clamping jaw assembly 210 to more accurately simulate the actual tension or compression force on both ends of the cable. This step improves the completeness and accuracy of the model. By introducing additional actual working condition data, it ensures that the model can more comprehensively reflect the actual stress conditions of the cable during the heating process. Through this reinforcement, the model becomes a more complete mechanical representation, laying the foundation for subsequent in-depth analysis.

[0100] S38, performing mechanical simulation analysis on the complete three-dimensional mechanical model again, identifying the second pressure abnormality area, integrating the first pressure abnormality area and the second pressure abnormality area, and obtaining pressure deformation information.

[0101] The complete mechanical three-dimensional model after reinforcement is analyzed in depth to identify the second abnormal pressure area of ​​the cable and integrate the information of the first abnormal pressure area and the second abnormal pressure area to obtain pressure deformation information; the core goal of this step is to reveal the key points that may cause damage or quality problems to the cable during the heating process through in-depth analysis of the model. The pressure deformation information obtained plays an important role in further optimizing the control strategy of the heating device 100, and can help adjust the operation of the heating plate 120 to prevent potential damage and ensure the uniformity and quality of cable processing.

[0102] In this embodiment, it is specifically described that step S4 specifically includes:

[0103] S41, starting a finite element analysis program, setting operating parameters of the finite element analysis program, the operating parameters including material properties and environmental conditions; the material properties include thermal expansion coefficient and elastic modulus of the cable material, and the environmental conditions include temperature and heating rate;

[0104] In this step, the preparation work includes starting the finite element analysis program and setting its operating parameters; the operating parameters can directly affect the accuracy and reliability of the analysis. Material properties (thermal expansion coefficient, elastic modulus) and environmental conditions (such as temperature, heating rate) are the basis for accurate simulation and can ensure that the simulation results are closer to the actual situation; correctly setting these parameters can provide a solid and accurate foundation for the analysis in subsequent steps.

[0105] S42, importing the mechanical three-dimensional model of the cable into a finite element analysis program, the finite element analysis program simulates the mechanical behavior of the cable during the actual heating process, as well as the stress and deformation parameters generated by the temperature change;

[0106] In the step of importing the mechanical three-dimensional model of the cable into the finite element analysis program, the finite element analysis program simulates the mechanical behavior of the cable during the actual heating process through the imported model, including the stress and deformation caused by temperature changes; this step is the basis for understanding the actual behavior of the cable under complex working conditions, so that its response under specified conditions can be predicted and analyzed in the simulation.

[0107] S43, identifying a potential deformation area of ​​the mechanical three-dimensional model according to the mechanical behavior, stress and deformation parameters obtained by analysis, compensating the potential deformation area to the pressure deformation information, and integrating to obtain complete pressure deformation information;

[0108] In this step, finite element analysis is used to identify potential deformation areas of the cable model. These areas are often caused by factors such as stress concentration or changes in material properties. The information of these potential deformation areas is compensated to the pressure deformation information mentioned above, and the information is integrated. This can help to more fully understand the problems that the cable may encounter during the heating process and provide a basis for subsequent adjustments and corrections.

[0109] S44, extracting key elements of the complete pressure deformation information, and setting mechanical correction parameters that need to be corrected for the key elements according to the extracted key elements; the key elements include the maximum stress value and deformation degree of the deformation area;

[0110] Extract key elements from the complete pressure deformation information, including the maximum stress value and deformation degree of the deformation area, and then set the mechanical correction parameters that need to be corrected. These correction parameters are based on simulation and analysis results, aiming to reduce or eliminate potential problems, and are used to guide the actual production process to optimize the heating treatment of the cable by adjusting the heating conditions or changing the production parameters of the cable.

[0111] S45, formulating a preliminary hot pressing plan according to the mechanical correction parameters, the preliminary hot pressing plan including the initial position, movement trajectory and applied pressure of the heating plate and the clamping jaw assembly;

[0112] Initial position and movement trajectory: Taking into account the thermal expansion characteristics of the cable material and the expected deformation, the preliminary hot pressing plan ensures that the heating plate can heat the cable evenly, while the clamping jaw assembly maintains or moderately adjusts the tension to adapt to the length change of the cable during the heating process; Determination of applied pressure: Based on the mechanical correction parameters, it is planned to determine the pressure applied by the heating plate on the cable to ensure that the heating process is both efficient and does not cause damage to the cable. The applied pressure needs to be precisely controlled to avoid stress concentration or uneven heating.

[0113] S46, updates the mechanical correction parameters according to the changes of the mechanical three-dimensional model during the heating process, and updates the preliminary hot pressing plan to formulate a hot pressing plan for the cable during the entire heating process; this step ensures that the heating strategy can respond to the changes in the physical state of the cable in real time, thereby optimizing the heating effect.

[0114] Using real-time monitoring data, such as the deformation size and stress distribution of the cable, to adjust the mechanical correction parameters in real time requires the control system to have a high degree of flexibility and rapid response capabilities, so as to adjust the operating parameters in time during the heating process. Through the continuous updating of mechanical correction parameters, the hot pressing plan will continue to optimize the heating area of ​​the heating plate, the tension and movement speed of the clamping jaws, etc., to adapt to the actual changes in the cable heating process, to ensure that the cable is heated evenly and the deformation is controlled within an acceptable range.

[0115] S47, uploading the formulated hot pressing plan to the control unit, converting the hot pressing plan into control instructions that match the control of the heating plate or the clamping jaw assembly.

[0116] The operation details contained in the hot pressing plan, such as the specific movement trajectory, speed and applied pressure of the heating plate and the clamping jaws, will be converted into specific control instructions that the control unit can execute. The control unit accurately controls the operation of the heating plate and the clamping jaws according to these instructions, while continuing to monitor the status of the cable, including the key deformation parameters, to ensure that the optimization and adjustment of the heating process can reflect the actual situation of the cable in real time.

[0117] In this embodiment, it is specifically described that step S5 specifically includes:

[0118] S51, according to the control instruction, adjust the position of the heating plate 120 in the corresponding direction; if the pressing force of the corresponding area needs to be increased, control the heating plate 120 to move away from the cable; if the pressing force of the corresponding area needs to be reduced, control the heating plate 120 to move towards the cable;

[0119] The specific position of the heating plate 120 is adjusted according to the control instructions to achieve precise control of the clamping force in the corresponding area; the adjustment of the position of the heating plate 120 directly affects the pressure applied to the cable during the heating process, thereby affecting the heat treatment effect and the physical form of the cable; by moving the heating plate 120 away from the cable to increase the clamping force, or moving it toward the cable to reduce the clamping force, this adjustable mechanism allows the operator or the automatic control system to flexibly adjust the clamping force according to actual needs, thereby ensuring the uniformity and high quality of the heating process.

[0120] S52, identifying the control requirement for the clamping jaw assembly 210 in the control instruction, and adjusting the tensioning force of the clamping jaw assembly 210 to maintain or change the tensioning state of the cable;

[0121] The clamping jaw assembly 210 is adjusted according to the control instruction, with the goal of maintaining or changing the tension state of the cable, because during the heating process of the cable, maintaining the proper tension state of the cable is crucial to ensuring the heating effect and the quality of the subsequent processing process; the adjustment of the clamping jaw assembly 210 can affect the tension force of the cable, so that appropriate measures can be taken according to different production requirements and cable specifications.

[0122] S53, continuously monitor the first pressure value of the cable heating part and the second pressure value at both ends of the cable during the heating process; if it is found that the first pressure value or the second pressure value exceeds the preset optimal range, the control unit updates the control instruction to adjust the movement of the heating plate 120 and the clamping jaw assembly 210.

[0123] The continuous monitoring and dynamic adjustment of the heating process can ensure that the heating process is always carried out under the best conditions by real-time monitoring of the first pressure value of the cable heating part and the second pressure value of the cable ends, and comparing them with the preset optimal pressure range. If the monitored pressure value deviates from the preset range, the control unit will update the control instructions and adjust the position of the heating plate 120 and the clamping jaw assembly 210 in a timely manner. This feedback mechanism ensures the high adaptability and accuracy of the heating process, promotes the maximization of the heating effect and the stability of the cable quality.

[0124] In this embodiment, it is further explained that a first pressure regulating assembly 130 is provided between each heating plate 120 and the outer annular plate 110, and the first pressure regulating assembly 130 is used to adjust the distance between the heating plate 120 and the outer annular plate 110; a pressure sensing sheet is provided on the inner wall of the heating plate 120, and the pressure sensing sheet is connected to a data acquisition unit.

[0125] The arrangement of the first pressure regulating assembly 130 and the pressure sensing sheet greatly improves the control accuracy and adaptability of the cable heating process; the first pressure regulating assembly 130 provides the possibility of accurately controlling the pressure applied by the heating plate 120 by adjusting the spacing between the heating plate 120 and the outer annular plate 110, while the pressure sensing sheet monitors and transmits pressure data in real time, ensuring that the control system can respond quickly and accurately based on the latest working condition information. These structural designs enable the heating device 100 to more finely control the heating process and optimize the heating efficiency and quality of the cable.

[0126] In this embodiment, it is specifically described that the first voltage regulating assembly 130 includes a first drive motor 131 arranged on the outer ring plate 110, and a screw is arranged on the output shaft of the first drive motor 131, and a nut member 132 is threadedly connected to the screw member, and the nut member 132 is slidably connected to one side of the first drive motor 131 through a limit block 133; a connecting block 134 is arranged on the nut member 132, and an elastic buffer member is arranged between the connecting block 134 and the nut member 132; the connecting block 134 is provided with a connecting rod 135, and one end of the connecting rod 135 is connected to the heating plate 120.

[0127] It should be noted that the working principle of the first voltage regulating assembly 130 is as follows: when it is necessary to adjust the clamping force of the heating plate 120 on the cable, the control system will send a command to the first drive motor 131, and the drive motor will control the rotation of the screw according to the command; the rotation of the screw is converted into linear motion by the nut 132, and this motion is accurately transmitted to the heating plate 120 through the limit block 133, the connecting block 134 and the connecting rod 135, so as to adjust the position of the heating plate 120. The position adjustment directly affects the distance between the heating plate 120 and the cable, thereby accurately controlling the clamping force of the heating plate 120 on the cable. The role of the elastic buffer is to play an elastic buffering role between the drive motor and the heating plate 120, reducing damage to the cable. The stability and precision of the entire adjustment process are ensured.

[0128] In this embodiment, clamping mechanisms 200 are respectively provided on both sides of the heating device 100, and the clamping mechanism 200 includes a clamping jaw assembly 210 for fixing the cable, and a second voltage regulating assembly 220 for driving the clamping jaw assembly 210 to move, and a sensor assembly for detecting the tension of the cable is provided on the second voltage regulating assembly 220; the clamping jaw assembly 210 includes a plurality of clamping jaw bodies 211 arranged at intervals, and a through hole for the cable to pass through is formed between the plurality of clamping jaw bodies 211, and a locking member is provided outside the clamping jaw body 211, and the locking member is used to drive the plurality of clamping jaw bodies 211 to move closer to or away from each other so as to adjust the diameter of the through hole.

[0129] Locking parts are arranged outside the clamping jaw body 211, and the function of these locking parts is to drive several clamping jaw bodies 211 to move closer to or away from each other. By adjusting the relative positions of the clamping jaw bodies 211, the diameter of the perforation can be adjusted to adapt to cables of different diameters and adjust the clamping strength of the cable as needed.

[0130] The second voltage regulating assembly 220 is provided with a sensor assembly for detecting the tension of the cable. These sensors can monitor the tension state of the cable in real time to ensure that it remains within an appropriate tension range. The real-time monitoring data can also provide a basis for adjusting the clamping mechanism 200, and optimize the heating process by dynamically adjusting the position or clamping force of the clamping jaw assembly 210.

[0131] In this embodiment, it is specifically described that the second voltage regulating assembly 220 includes a second driving motor and a guide rail assembly, the clamping mechanism 200 is slidably connected to the clamping mechanism 200 , and the driving end of the second driving motor is connected to the clamping mechanism 200 .

[0132] The second voltage regulating assembly 220 is mainly responsible for driving the clamping jaw assembly 210 to make fine position adjustments along the guide rail, thereby changing the tension of the clamping jaw on the cable. This action is necessary to ensure that the cable remains in an appropriate tension state during the heating process to avoid deformation or damage to the cable.

[0133] Embodiment 2:

[0134] The present invention further provides a heating system for cable production, characterized in that the heating system is used to implement the control method of the heating device 100 for cable production as in the first embodiment, and comprises:

[0135] The heating device 100 includes an outer annular plate 110, a plurality of heating plates 120 are arranged on the inner side of the outer annular plate 110, and the plurality of heating plates 120 are arranged along the circumferential direction; a pressure sensor sheet is arranged on the heating plate 120;

[0136] The clamping mechanism 200 includes two spaced apart clamping jaw assemblies 210, the clamping jaw assemblies 210 are used to fix the cable, and a sensor assembly is disposed on the clamping jaw assemblies 210;

[0137] A data acquisition unit is connected to the pressure sensing sheet and the sensing assembly, and is used to acquire a first pressure value of the cable heating portion in real time through the pressure sensing sheet, and to acquire a second pressure value at both ends of the cable through the sensing assembly;

[0138] A modeling software unit, used for constructing a mechanical three-dimensional model of the cable through the first pressure value and the second pressure value;

[0139] A data processing unit is used to perform mechanical simulation analysis on the mechanical three-dimensional model, obtain mechanical correction parameters through analysis, and convert the mechanical correction parameters into control instructions;

[0140] The control unit is used to issue a control instruction to control the movement of the heating plate 120 or the clamping jaw assembly 210 .

[0141] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, 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 embodiments of the present invention.

Claims

1. A control method for heating equipment for cable production, It is characterized in that The heating device comprises an outer annular plate, a plurality of heating plates are arranged on the inner side of the outer annular plate, and the plurality of heating plates are arranged along the circumferential direction; The control method comprises: Pass the cable through the heating device, and fix both ends of the cable on the clamping jaw assembly respectively; The heating device is running to drive the plurality of heating plates to gather toward the middle to heat the cable; During the heating process, the first pressure value of the cable heating part is collected in real time through the pressure sensor sheet on each heating plate, and the second pressure value of the two ends of the cable is obtained by the sensor component on the clamping jaw component, and the mechanical three-dimensional model of the cable is constructed through the first pressure value and the second pressure value; Analyzing the mechanical three-dimensional model by finite element analysis to obtain mechanical correction parameters so as to formulate a hot pressing plan for the cable, wherein the hot pressing plan includes control instructions for the heating plate and the clamping jaw assembly; The heating plate or the clamping jaw assembly is controlled to move by the control instruction to adjust the hot pressing process of the heating device on the cable.

2. The control method of the heating device for cable production according to claim 1, It is characterized in that The step of constructing a mechanical three-dimensional model of the cable by using the first pressure value and the second pressure value specifically includes: Obtain standard specification information of the cable by querying the specification parameter table of the cable; the standard specification information includes the diameter and material type of the cable; According to the obtained standard specification information of the cable, a standard three-dimensional model of the cable is constructed in the modeling software unit; Collecting position parameters of each heating plate, and converting the position parameters into position information of the corresponding heating plate relative to the center line of the cable; Inputting the first pressure value collected from the pressure sensor sheet on each of the heating plates into the standard three-dimensional model, matching each first pressure value with the position information of the corresponding heating plate through the modeling software unit, assigning a mechanical value to simulate the pressure value of the cable in each heating area, and establishing an initial mechanical three-dimensional model; The data processing unit performs a preliminary mechanical simulation analysis on the established initial mechanical three-dimensional model, and analyzes the force values ​​of the cable at the contact points with each of the heating plates to identify the first abnormal pressure area.

3. The control method of the heating device for cable production according to claim 2, It is characterized in that The method of constructing a mechanical three-dimensional model of the cable by using the first pressure value and the second pressure value further comprises: collecting a second pressure value obtained from a sensor assembly on the clamping jaw assembly; In the three-dimensional model, the initial mechanical three-dimensional model is reinforced according to the second pressure value to simulate the actual tension or compression force on both ends of the cable, so as to construct a complete mechanical three-dimensional model; The complete mechanical three-dimensional model is subjected to mechanical simulation analysis again to identify the second abnormal pressure area, and the first abnormal pressure area and the second abnormal pressure area are integrated to obtain pressure deformation information.

4. The control method of the heating device for cable production according to claim 3, It is characterized in that The mechanical three-dimensional model is analyzed by finite element analysis to obtain mechanical correction parameters, and a hot pressing plan for the cable is formulated. The hot pressing plan includes control instructions for the heating plate or the clamping jaw assembly; specifically, the plan includes: Starting a finite element analysis program and setting operating parameters of the finite element analysis program, wherein the operating parameters include material properties and environmental conditions; the material properties include thermal expansion coefficient and elastic modulus of the cable material, and the environmental conditions include temperature and heating rate; Importing the mechanical three-dimensional model of the cable into the finite element analysis program, the finite element analysis program simulates the mechanical behavior of the cable during the actual heating process, as well as the stress and deformation parameters generated by temperature changes; According to the mechanical behavior, stress and deformation parameters obtained by analysis, the potential deformation area of ​​the mechanical three-dimensional model is identified, and the potential deformation area is compensated to the pressure deformation information to obtain the complete pressure deformation information through integration; Extracting key elements of complete pressure deformation information, and setting mechanical correction parameters that need to be corrected for the key elements according to the extracted key elements; the key elements include the maximum stress value and deformation degree of the deformation area; Formulate a preliminary hot pressing plan according to the mechanical correction parameters, wherein the preliminary hot pressing plan includes the initial position, movement trajectory and applied pressure of the heating plate and the clamping jaw assembly; The mechanical correction parameters are updated according to the changes of the mechanical three-dimensional model during the heating process, and the preliminary hot pressing plan is updated to formulate a hot pressing plan for the cable during the entire heating process; The formulated hot pressing plan is uploaded to a control unit, and the hot pressing plan is converted into a control instruction that matches the control of the heating plate or the clamping jaw assembly.

5. The control method of the heating device for cable production according to claim 4, It is characterized in that The heating plate or the clamping jaw assembly is controlled to move by the control instruction to adjust the hot pressing process of the heating device on the cable; specifically including: According to the control instruction, the position of the heating plate in the corresponding direction is adjusted; if the pressing force of the corresponding area needs to be increased, the heating plate is controlled to move in the direction close to the cable; if the pressing force of the corresponding area needs to be reduced, the heating plate is controlled to move in the direction away from the cable; Identifying the control requirements for the clamping jaw assembly in the control instruction, and adjusting the tensioning force of the clamping jaw assembly to maintain or change the tensioning state of the cable; The first pressure value of the cable heating part and the second pressure value at both ends of the cable are continuously monitored during the heating process; if it is found that the first pressure value or the second pressure value exceeds the preset optimal range, the control unit updates the control instruction to adjust the movement of the heating plate and the clamping jaw assembly.

6. The control method of the heating device for cable production according to claim 1, It is characterized in that A first pressure regulating assembly is provided between each of the heating plates and the outer annular plate, and the first pressure regulating assembly is used to adjust the distance between the heating plate and the outer annular plate; A pressure sensing sheet is arranged on the inner wall of the heating plate, and the pressure sensing sheet is connected to a data acquisition unit.

7. The control method of the heating device for cable production according to claim 6, It is characterized in that The first voltage regulating assembly comprises a first driving motor disposed on the outer annular plate, a screw rod is disposed on the output shaft of the first driving motor, a nut member is threadedly connected to the screw rod, and the nut member is slidably connected to one side of the first driving motor through a limit block; A connecting block is arranged on the nut member, and an elastic buffer member is arranged between the connecting block and the nut member; the connecting block is provided with a connecting rod, and one end of the connecting rod is connected to the heating plate.

8. The control method of the heating device for cable production according to claim 1, It is characterized in that A clamping mechanism is provided on both sides of the heating device, and the clamping mechanism includes a clamping claw assembly for fixing the cable, and a second voltage regulating assembly for driving the clamping claw assembly to move, and a sensor assembly for detecting the tension of the cable is provided on the second voltage regulating assembly; The clamp assembly includes a plurality of clamp bodies arranged at intervals, a through hole for the cable to pass through is formed between the plurality of clamp bodies, a locking member is arranged outside the clamp body, and the locking member is used to drive the plurality of clamp bodies to move closer to or away from each other so as to adjust the diameter of the through hole.

9. The control method of the heating device for cable production according to claim 8, It is characterized in that The second voltage regulating assembly includes a second driving motor and a guide rail assembly, the clamping mechanism is slidably connected to the guide rail assembly, and the driving end of the second driving motor is connected to the clamping mechanism.

10. A heating system for cable production, It is characterized in that Used to implement the control method of the heating equipment for cable production according to any one of claims 1 to 9, the heating system comprises: The heating device comprises an outer annular plate, a plurality of heating plates are arranged on the inner side of the outer annular plate, and the plurality of heating plates are arranged along the circumferential direction; a pressure sensing sheet is arranged on the heating plate; The clamping mechanism comprises two spaced apart clamping jaw assemblies, the clamping jaw assemblies are used to fix the cable, and the clamping jaw assemblies are provided with a sensor assembly; A data acquisition unit, connected to the pressure sensing sheet and the sensing assembly, for acquiring a first pressure value of a heating portion of the cable in real time through the pressure sensing sheet, and acquiring a second pressure value at both ends of the cable through the sensing assembly; A modeling software unit, configured to construct a mechanical three-dimensional model of the cable according to the first pressure value and the second pressure value; A data processing unit, used for performing mechanical simulation analysis on the mechanical three-dimensional model, obtaining mechanical correction parameters through analysis, and converting the mechanical correction parameters into control instructions; The control unit is used to issue a control instruction to control the movement of the heating plate or the clamping jaw assembly.

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