A method for dynamically adjusting the extraction force during high-speed extraction of fine wires, a device for dynamically adjusting the extraction force during high-speed extraction of fine wires, electronic equipment, and storage medium.

Abstract

During the high-speed extraction process, ensure that the wire extraction force remains stable at all times. [Solution] A method for dynamically adjusting the pulling force during high-speed pulling of a fine wire, a device for dynamically adjusting the pulling force during high-speed pulling of a fine wire, an electronic device, and a storage medium, which are used in a system for dynamically adjusting the pulling force during high-speed pulling of a fine wire. The pulling resistance generated in the pulling unit during the process of diameter reduction processing of the wire is measured in real time by a pressure sensor, the back tension during the wire feeding process is measured in real time by a force sensor, and dynamic adjustment is made to the currently measured back tension based on an established back tension control policy, the back tension control policy includes a first relational expression that defines the back tension utilization rate, and a second relational expression that represents the mapping relationship between the pulling force and the tensile breaking force of the wire after diameter reduction processing by the pulling unit.

Description

[Technical Field]

[0001] This application relates to the technical field of fine wire drawing, and more particularly to a method for dynamically adjusting the drawing force during high-speed drawing of fine wires, a device for dynamically adjusting the drawing force during high-speed drawing of fine wires, electronic equipment, and a storage medium. [Background technology]

[0002] With advancements in science and technology and expanding industrial demand, fine metal wires are widely used in fields such as aerospace, precision instrument manufacturing, and electronic communications due to their superior performance. High-speed drawing is a demanding process in the production of fine wires. Strict control of the drawing force is necessary during the drawing process to ensure the mechanical performance, surface quality, and processing accuracy of the wire. While high-speed drawing can increase production efficiency, it also comes with problems such as fluctuations in tensile force, wire breakage, and die wear. Therefore, real-time measurement and adjustment of the drawing force during the drawing process is particularly important to ensure production stability and the quality of the finished product. Conventional fine wire drawing machines mostly use fixed tensile force settings and manual adjustment methods, making it difficult to respond to real-time changes in tensile force during high-speed drawing. This leads to unstable wire tension during the drawing process, making wire breakage or uneven tensile force more likely, and making it difficult to achieve continuous high-speed production. [Overview of the Initiative] [Problems that the invention aims to solve]

[0003] To overcome the shortcomings of the prior art, this application provides a method for dynamically adjusting the extraction force during high-speed extraction of fine wires, a device for dynamically adjusting the extraction force during high-speed extraction of fine wires, electronic equipment, and a storage medium, which can measure and adjust the extraction force dynamically in real time and improve the stability of the high-speed extraction process of fine wires. [Means for solving the problem]

[0004] In the first aspect, this application provides a method for dynamically adjusting the pulling force during high-speed drawing of a fine wire. The method for dynamically adjusting the pulling force during high-speed drawing of a fine wire is used in a dynamic adjustment system for the pulling force during high-speed drawing of a fine wire, the dynamic adjustment system comprising a drawing unit, a pulling unit, and a tension unit, wherein the wire is passed through the drawing unit and first wound around the pulling unit, and then passed through the tension unit to the next drawing unit, thereby performing a multi-stage diameter reduction process, a pressure sensor is installed in the drawing unit, and a force sensor is installed in the tension unit, the dynamic adjustment method drives the pulling unit to generate a pulling force, and reduces the diameter by pulling the wire out of the drawing unit under the action of the pulling force. The process includes the steps of performing the work, measuring in real time the pulling resistance generated in the pulling unit during the process of reducing the diameter of the wire using the pressure sensor, measuring in real time the back tension generated during the process of feeding the wire using the force sensor, and performing dynamic adjustment to the currently measured back tension based on an established back tension control policy, wherein the back tension control policy includes a first relational expression that defines the back tension utilization rate and a second relational expression that represents the mapping relationship between the pulling force and the tensile breaking force of the wire after diameter reduction by the pulling unit.

[0005] In one feasible embodiment, the first and second relational expressions are as follows:

number

number

[0006] In one feasible embodiment, dynamic adjustment to the currently measured back tension based on an established back tension control policy involves the steps of calculating the back tension utilization rate and pull-out force based on the currently measured pull-out resistance and back tension, and if the calculated back tension utilization rate is less than a predetermined lower limit of back tension utilization rate, or if the calculated pull-out force is less than the safety factor β and the tensile breaking force F of the wire after diameter reduction processing. σ The method includes the steps of: controlling the tension unit to reduce the back tension if the product of the two is greater, and controlling the tension unit to increase the back tension if the calculated back tension utilization rate is greater than or equal to the upper limit of a predetermined back tension utilization rate.

[0007] In one implementable embodiment, the tension unit is used to decrease or increase the back tension by a predetermined first step width, where the first step width is 0.1% to 0.5% q0 / s, and q0 represents a set initial back tension.

[0008] In one implementable embodiment, performing a dynamic adjustment to the currently measured back tension based on an established back tension control policy further includes the steps of: calculating a range of variation in the pull-out force based on the pull-out force before and after the adjustment of the back tension; and, if the calculated range of variation in the pull-out force exceeds a predetermined range threshold, controlling the traction unit to reduce the pull-out speed until the range of variation in the pull-out force falls below the predetermined range threshold.

[0009] In one feasible embodiment, the traction unit is controlled to reduce the withdrawal speed by a predetermined second step width, where the second step width is 1% to 3% V0 / s, and V0 represents a set initial withdrawal speed.

[0010] In one implementable embodiment, measuring the tensile breaking force of a wire after diameter reduction includes the steps of: fixing the wire after diameter reduction to a fixture of a tensile testing machine according to a predetermined gauge length; applying a tensile force to the wire at a predetermined stretching speed using the tensile testing machine; and recording the tensile force at which the wire breaks, and using this tensile force as the measured tensile breaking force.

[0011] In the second aspect, the present application provides a dynamic adjustment device for the pulling force during high-speed drawing of a fine wire. The dynamic adjustment device is used in a dynamic adjustment system for the pulling force during high-speed drawing of a fine wire, and the dynamic adjustment system comprises a drawing unit, a pulling unit, and a tension unit, wherein the wire is passed through the drawing unit and first wound around the pulling unit, and further passed through the tension unit to the next drawing unit, thereby performing a multi-stage diameter reduction process, a pressure sensor is installed in the drawing unit, and a force sensor is installed in the tension unit, and the dynamic adjustment device is configured to drive the pulling unit to generate a pulling force and perform a diameter reduction process by pulling the wire out of the drawing unit under the action of the pulling force, and The device comprises a measuring module configured to measure in real time the pulling resistance generated in the pulling unit during the process of reducing the diameter of the wire using the pressure sensor, and to measure in real time the back tension generated during the process of feeding the wire using the force sensor, and an adjustment module configured to dynamically adjust the currently measured back tension based on an established back tension control policy, wherein the back tension control policy includes a first relational expression that defines the back tension utilization rate and a second relational expression that represents the mapping relationship between the pulling force and the tensile breaking force of the wire after diameter reduction by the pulling unit.

[0012] In the third phase, the present application provides an electronic device, the electronic device comprising a processor, a memory, and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is in operation, the processor and the memory communicate via the bus, and when the machine-readable instructions are executed by the processor, the steps of the method for dynamically adjusting the extraction force during high-speed extraction of any one fine wire according to the first phase are performed.

[0013] In the fourth phase, the present application provides a computer-readable storage medium in which a computer program is stored, and when the computer program is executed by a processor, the steps of the method for dynamically adjusting the extraction force during high-speed extraction of any one fine wire according to the first phase are performed. [Effects of the Invention]

[0014] The method for dynamically adjusting the pulling force during high-speed drawing of a fine wire, the device for dynamically adjusting the pulling force during high-speed drawing of a fine wire, the electronic equipment, and the storage medium according to this embodiment are used in a dynamic adjustment system for the pulling force during high-speed drawing of a fine wire, the dynamic adjustment system comprising a pulling unit, a traction unit, and a tension unit, the traction unit is driven to generate a pulling force, the wire is pulled out of the pulling unit under the action of the pulling force to perform diameter reduction processing, the pulling resistance generated in the pulling unit during the process of the pulling unit performing diameter reduction processing on the wire is measured in real time by the pressure sensor, the back tension generated during the process of feeding the wire is measured in real time by the force sensor, and adjustments are made to the currently measured back tension based on an established back tension control policy, the back tension control policy includes a first relational expression that defines the back tension utilization rate and a second relational expression that represents the mapping relationship between the pulling force and the tensile breaking force of the wire after diameter reduction processing by the pulling unit. By specifying both the back tension utilization rate and the drawing force, the back tension is always maintained within an optimal range. This ensures that the wire drawing force remains stable during the high-speed drawing process, effectively reducing problems such as wire breakage, surface quality defects, and die wear, improving production efficiency and the quality of finished fine wires, and extending the service life of the dies. [Brief explanation of the drawing]

[0015] To more clearly explain the technical concept of the embodiments of this application, the drawings used in the embodiments are briefly described below. The drawings described are merely examples of some embodiments of the present invention and do not limit the scope. Those skilled in the art can obtain other relevant drawings based on these drawings without employing inventive ability. [Figure 1] This is a flowchart of a method for dynamically adjusting the pulling force during high-speed pulling of a fine wire according to one embodiment of this application. [Figure 2] This is a schematic diagram of a dynamic adjustment system for the pulling force during high-speed drawing of fine wires according to one embodiment of this application. [Figure 3]This is a schematic configuration diagram of a dynamic adjustment device for drawing force during high-speed drawing of fine wires according to an embodiment of the present application. [Figure 4] This is a block diagram of an electronic device according to an embodiment of the present application.

Embodiments for Carrying out the Invention

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The drawings in the present application are only for the purpose of illustration and do not limit the protection scope of the present application. Or, the exemplary drawings are not drawn in proportion to the actual objects. The flowcharts used in the present application show the operations implemented by some embodiments of the present application. The operations in the flowcharts do not have to be implemented in the order shown. Steps that do not have a logical context relationship may be implemented in the reverse order of the shown order or simultaneously. Also, those skilled in the art may add one or more other operations to the flowchart or delete one or more operations from the flowchart based on the content of the present application.

[0017] Moreover, the described embodiments are only some embodiments of the present application, not all embodiments. The components in the embodiments of the present application shown in the drawings here can be arranged and designed in various arrangement methods. Therefore, the detailed description of the embodiments of the present application shown in the drawings is only the selected embodiments of the present application and does not limit the scope of the present application to be protected. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without using inventive capabilities also belong to the protection scope of the present application.

[0018] The term "including" in the embodiments of the present application means the presence of features but does not exclude the addition of other features.

[0019] Current fine wire drawing equipment mostly uses fixed tensile force settings and manual adjustment methods, making it difficult to respond to real-time changes in tensile force during high-speed drawing. These technologies have the following drawbacks: 1. Insufficient monitoring of tensile force: Conventional equipment generally lacks accurate dynamic monitoring of tensile force, making it impossible to obtain real-time data on changes in drawing force during high-speed drawing. This results in unstable wire tension during the drawing process, making wire breakage or uneven tensile force more likely. 2. Delayed adjustment response: Conventional systems mostly control tensile force based on manual adjustment or predetermined fixed parameters. The response to adjustments in such methods is relatively slow, making it impossible to adjust the drawing force in real time. In particular, under high-speed drawing conditions, adjustments are not timely, which can easily impair wire quality and production efficiency. 3. Reduced die life: Due to fluctuations in drawing force, dies tend to wear out excessively during use, shortening their service life and increasing production costs. 4. Limitations in production efficiency: If there is a lack of highly efficient automated adjustment means and the drawing force needs to be adjusted frequently, production efficiency will decrease, making it difficult to achieve continuous high-speed production. In view of this, this application provides a method for dynamically adjusting the drawing force during high-speed drawing of fine wires, a device for dynamically adjusting the drawing force during high-speed drawing of fine wires, electronic equipment, and a storage medium, thereby ensuring that the drawing force of the wire is always kept in a stable state during the high-speed drawing process, effectively reducing problems such as wire breakage, surface quality defects, and die wear, improving production efficiency and the quality of the finished fine wires, and extending the service life of the dies.

[0020] As shown in Figure 1, in one embodiment, the present invention provides a method for dynamically adjusting the pulling force during high-speed drawing of a fine wire, which is used in a dynamic adjustment system for the pulling force during high-speed drawing of a fine wire according to this application. The dynamic adjustment system comprises a drawing unit, a pulling unit, and a tension unit. The wire is passed through the drawing unit and first wound around the pulling unit, and then passed through the tension unit to the next drawing unit, thereby performing a multi-stage diameter reduction process. A pressure sensor is installed in the drawing unit, and a force sensor is installed in the tension unit. The dynamic adjustment method includes the following steps.

[0021] Step S1: The pulling unit is driven to generate a pulling force, and the wire is pulled out of the pulling unit under the action of the pulling force to perform diameter reduction processing.

[0022] Step S2: The extraction resistance generated in the extraction unit during the process of reducing the diameter of the wire is measured in real time by the pressure sensor, and the back tension generated during the process of feeding the wire is measured in real time by the force sensor.

[0023] Step S3: Dynamically adjust the currently measured back tension based on the established back tension control policy. The back tension control policy includes a first relation that defines the back tension utilization rate and a second relation that represents the mapping relationship between the pull-out force and the tensile breaking force of the wire after diameter reduction by the pull-out unit.

[0024] To clearly understand the technical concept of the embodiment of this application, we will first describe the dynamic adjustment system for the drawing force during high-speed drawing of fine wires. In practice, during the process of high-speed drawing of fine wires, the drawing force of the fine wire is small and the speed is high, making it difficult to accurately measure the drawing force. Therefore, this application has designed a dynamic adjustment system for the drawing force during high-speed drawing of fine wires that can accurately measure the drawing force and back tension during the process of high-speed drawing of fine wires. As shown in Figure 2, in one embodiment, the dynamic adjustment system for the drawing force during high-speed drawing of fine wires mainly consists of a drawing unit, a traction unit and a tension unit. The drawing unit includes a die frame 2, a support spring 3, a wire drawing die 4 and a pressure sensor 5. The traction unit includes a drawing driven roll 7 and a drawing drive roll 8. The tension unit includes a tension frame 9, a tension rod 10 and a tension roll 11. The wire drawing die 4 has a die hole of a specific shape and can gradually thin a thick wire to the required diameter. In this application, the wire drawing die 4 is fitted into the die frame 2, and symmetrical restraining force is provided by support springs 3 symmetrically attached to both the left and right sides of the wire drawing die 4, thereby preventing deviation in wire drawing caused by asymmetrical load distribution. The wire drawing die 4 is in contact with a pressure sensor 5, which is installed on the right side of the die frame 2, and a hole is provided in the center of the pressure sensor 5 to allow the passage of a fine wire. The wire enters the drawing unit guided by the first fixed pulley 1, undergoes diameter reduction processing by the wire drawing die 4, and is fed out of the exit of the drawing unit. The wire is then sequentially passed through the second fixed pulley 6 and enters the traction unit, where the drawing drive roll 8 and the drawing driven roll 7 perform traction on the wire. In this embodiment, the wire is wrapped around the drawing drive roll 8 and the driven roll 7 three times, and the wire is effectively pulled by frictional force to keep it in continuous motion. A speed sensor is placed on the drawing drive roll 8 to measure the wire drawing speed V in real time. The tension is measured and adjusted by the force sensor in the tension unit, thereby ensuring tension stability during the high-speed wire drawing process. If the tension is too high, the wire drawing die 4 will be subjected to excessive tensile force, shortening its service life, and the fine wire may be excessively stretched and break. If the tension is too low, there will be insufficient tensile force during the drawing process of the fine wire, resulting in uneven thickness.

[0025] In step S1, generating an extraction force by driving the traction unit involves controlling the motor to rotate the extraction drive roll 8, thereby generating the extraction force and achieving the objective of diameter reduction by pulling the wire out of the extraction unit.

[0026] In step S2, the wire is pulled out of the wire drawing die 4 by the action of the pulling force, and the pulling resistance of the wire acting on the wire drawing die 4 interacts with the wire drawing die 4, thereby generating a wire drawing die load equal to the pulling resistance and directed to the right on the wire drawing die 4. This causes the wire drawing die 4 to be pressed against the pressure sensor 5, and the wire drawing die load measured by the pressure sensor 5 is the value of the pulling resistance. At the same time, the back tension during the wire feeding process is measured in real time by a tension unit equipped with a force sensor.

[0027] In step S3, the established back tension control policy adjusts the back tension in real time during the wire feeding process to ensure tension stability during the high-speed wire drawing process. The back tension control policy is established based on statistics of a large amount of high-speed wire drawing data and includes a first relation that defines the back tension utilization rate and a second relation that represents the mapping relationship between the drawing force and the tensile breaking force of the wire after diameter reduction processing by the drawing unit. The first and second relational equations are as follows.

[0028]

number

[0029]

number

[0030] Specifically, when making adjustments to the currently measured back tension based on an established back tension control policy, first, the back tension utilization rate γ and the pull-out force F are calculated based on the pull-out resistance obtained by the current pressure sensor 5 and the back tension obtained by the current force sensor. If the calculated back tension utilization rate γ is smaller than the lower limit a of the specified back tension utilization rate, or if the calculated pull-out force F is smaller than the safety factor β and the tensile breaking force F of the wire after diameter reduction, then the adjustment is made. σ If the product of the two values ​​is greater than the back tension, it indicates that the back tension is excessive, causing the pulling force to increase rapidly, impairing the quality of the fine wire pulling, and ultimately leading to wire breakage. In this case, the tension unit is controlled to reduce the back tension. If the calculated back tension utilization rate γ is greater than the upper limit b of the specified back tension utilization rate, it indicates that the back tension is insufficient, indicating that the optimization for the high-speed pulling process of the fine wire is inadequate. In this case, the tension unit is controlled to increase the back tension.

[0031] The tensile breaking force of a reduced-diameter wire is measured using the following method: The wire, after being reduced in diameter according to a predetermined gauge length, is fixed to a jig of a tensile testing machine. A tensile force is applied to the wire using the tensile testing machine at a predetermined stretching speed, and the tensile force at which the wire breaks is recorded. This tensile force is defined as the measured tensile breaking force.

[0032] Specifically, tensile breaking force can be measured using a specialized tensile testing machine. The measurement range is selected according to the wire specifications and expected tensile breaking force, and generally, it should meet the test requirements. For example, for relatively thin wires, a tensile testing machine with a small measurement range and high accuracy is selected, while for relatively thick wires or wires with relatively high tensile breaking force, a tensile testing machine with a relatively large measurement range is selected. A sample of a certain length is cut from the wire to be measured, and the sample is fixed to the upper and lower fixtures of the tensile testing machine according to a predetermined gauge length. The fixtures are used to ensure that the wire is securely held, and the axis of the wire coincides with the center line of the fixture, thereby ensuring that the tensile force is applied uniformly to the wire. The tensile testing machine is driven at a predetermined stretching speed to apply tensile force to the wire, and the tensile force applied to the wire is recorded in real time during the test process. When the wire breaks, the tensile testing machine automatically stops, and the maximum tensile force at the time of breakage is recorded. This maximum tensile force is the tensile breaking force of the wire. The specified gauge length is 100 mm, the specified stretching speed is 10 mm / min, and multiple measurements can be taken to obtain more accurate results. The average of the measurement results is used to determine the tensile breaking force F of the wire after diameter reduction. σ Let's assume that.

[0033] In one embodiment, the lower limit a of the back tension utilization rate is set to 90%, the upper limit of the back tension utilization rate is set to 100%, and the range of the safety factor β is set to 0.5 to 0.7. If the back tension utilization rate γ calculated based on the pull-out resistance obtained by the current pressure sensor 5 and the back tension obtained by the current force sensor is less than 90%, or if the pull-out force F calculated based on the pull-out resistance obtained by the current pressure sensor 5 and the back tension obtained by the current force sensor exceeds the range of Equation 2, it indicates that the back tension is excessive, the pull-out force increases rapidly, impairs the quality of wire pulling, and ultimately causes wire breakage. In this case, the back tension is reduced, and the decrease gradient of the back tension is 0.1% to 0.5% q0 / s, where q0 represents the set initial back tension. If the calculated back tension utilization rate γ is 100%, the back tension may be too low, resulting in insufficient improvements in areas such as reducing defects on the fine wire surface and extending the life of the wire drawing die. In this case, the back tension should be increased, with a back tension increase gradient of 0.1% to 0.5% q0 / s, where q0 represents the set initial back tension.

[0034] In the high-speed wire drawing process, the stability of the drawing force is crucial for adjusting the back tension. If the range of variation in the drawing force is excessive, it can lead to problems such as wire breakage due to localized stress concentration, deterioration of surface quality, and increased die wear. Therefore, the range of variation in the drawing force is calculated based on the drawing force before and after adjusting the back tension. If the calculated range of variation in the drawing force exceeds a predetermined range threshold, the traction unit is controlled to reduce the drawing speed until the range of variation in the drawing force falls below the predetermined range threshold. In one embodiment, the range threshold is set to ±3%, and if the calculated range of variation in the drawing force is greater than ±3%, the rotational speed of the drawing drive roll 8 is reduced to decrease the drawing speed until the range of variation in the drawing force is less than ±3%, with a drawing speed reduction gradient of 1% to 3% V0 / s, where V0 represents the set initial drawing speed.

[0035] In this application, the range of the safety factor β is 0.5 to 0.7, the adjustment gradient of the back tension is 0.1% to 0.5% q0 / s, and the adjustment gradient of the extraction speed is 1% to 3% V0 / s. These are optimal ranges determined based on test data. If the step width of the adjustment gradient of the back tension / extraction speed is smaller than this range, the response speed of the dynamic adjustment will be relatively slow, impairing production efficiency. If the step width is larger than this range, the optimal back tension cannot be obtained, leading to extraction instability and resulting in wire breakage or unstable operation of the equipment.

[0036] The dynamic adjustment method for the drawing force during high-speed drawing of fine wires according to this application monitors changes in the drawing force during the high-speed drawing process of fine wires in real time, utilizes a predetermined drawing force range, and dynamically adjusts the back tension and drawing speed during the drawing process, thereby maintaining the drawing force and drawing speed within a predetermined optimal range at all times. This effectively prevents problems that frequently occur during the drawing process, such as wire breakage, surface defects, and dimensional inconsistencies caused by fluctuations in tensile force. The drawing force can be quickly adjusted according to the different requirements of the fine wire material, diameter, and drawing speed, ensuring stability and consistency in the high-speed drawing process, reducing the wire drawing breakage rate by 30%, and significantly improving surface quality and straightness. Optimization of back tension reduces the frictional force between the wire drawing die and the wire during the drawing process, keeping the drawing force within a stable range, preventing excessive wear of the wire drawing die due to fluctuations in tensile force during the drawing process, extending the service life of the wire drawing die by 20%, and reducing maintenance and replacement costs. Furthermore, the automatic adjustment function can reduce human intervention and significantly increase production efficiency.

[0037] Based on the same inventive concept, embodiments of this application further provide a dynamic adjustment device for the extraction force during high-speed extraction of fine wires. Since the principle of solving the problem of the device according to embodiments of this application is similar to the method for dynamically adjusting the extraction force during high-speed extraction of fine wires according to embodiments of this application, the implementation of the device can refer to the implementation of the method, and redundant explanations are omitted.

[0038] As shown in Figure 3, the dynamic adjustment device for the extraction force during high-speed extraction of fine wires according to the embodiment of this application is used in a dynamic adjustment system for the extraction force during high-speed extraction of fine wires. The dynamic adjustment system comprises an extraction unit, a traction unit, and a tension unit. The wire is passed through the extraction unit and first wound around the traction unit, and then passed through the tension unit to the next extraction unit, thereby performing a multi-stage diameter reduction process. A pressure sensor is installed in the extraction unit, and a force sensor is installed in the tension unit. The device comprises a drive module 301, a measurement module 302, and an adjustment module 303.

[0039] The drive module 301 is configured to drive the traction unit to generate an extraction force, and to perform diameter reduction processing by pulling the wire out of the extraction unit under the action of the extraction force.

[0040] The measurement module 302 is configured to measure in real time the drawing resistance generated in the drawing unit during the process of reducing the diameter of the wire using the pressure sensor, and to measure in real time the back tension generated during the process of feeding the wire using the force sensor.

[0041] The adjustment module 303 is configured to make dynamic adjustments to the currently measured back tension based on an established back tension control policy. The back tension control policy includes a first relation that defines the back tension utilization rate and a second relation that represents the mapping relationship between the pull-out force and the tensile breaking force of the wire after diameter reduction by the pull-out unit.

[0042] In one embodiment, the first and second relational expressions are as follows.

[0043]

number

[0044]

number

[0045] Here, γ represents the back tension utilization rate, M0 represents the drawing resistance generated in the drawing unit when the back tension is zero, and M q represents the drawing resistance generated in the drawing unit when the back tension is q, q represents the back tension, a and b respectively represent the lower limit and the upper limit of the back tension utilization rate, F represents the drawing force, β represents the safety factor in the drawing process, and the range is 0.5 to 0.7, and F σ represents the tensile breaking force of the wire after the diameter reduction process by the drawing unit.

[0046] In one embodiment, adjusting the currently measured back tension based on the established back tension control policy by the adjustment module 303 means calculating the back tension utilization rate and the drawing force based on the currently measured drawing resistance and back tension, and when the calculated back tension utilization rate is smaller than the lower limit of the predetermined back tension utilization rate, or when the calculated drawing force is greater than the product of the safety factor β and the tensile breaking force F of the wire after diameter reduction σ , controlling the tension unit to reduce the back tension, and when the calculated back tension utilization rate is greater than the upper limit of the predetermined back tension utilization rate, controlling the tension unit to increase the back tension. The tension unit reduces or increases the back tension by a predetermined first step width, and the first step width is 0.1% to 0.5%q0 / s, where q0 represents the set initial back tension.

[0047] In one embodiment, adjusting the currently measured back tension based on an established back tension control policy using the adjustment module 303 further includes calculating the range of variation of the pull-out force based on the pull-out force before and after the adjustment of the back tension, and if the calculated range of variation of the pull-out force exceeds a predetermined range threshold, controlling the traction unit to reduce the pull-out speed until the range of variation of the pull-out force falls below the predetermined range threshold, wherein the traction unit is controlled to reduce the pull-out speed by a predetermined second step width, where the second step width is 1% to 3% V0 / s, and V0 represents the set initial pull-out speed.

[0048] In one embodiment, the measurement module 302 is further configured to measure the tensile breaking force of the wire after its diameter has been reduced. Specifically, this involves fixing the wire after its diameter has been reduced to a fixture of a tensile testing machine according to a predetermined gauge length, applying a tensile force to the wire at a predetermined stretching speed using the tensile testing machine, recording the tensile force at which the wire breaks, and defining this tensile force as the measured tensile breaking force.

[0049] The dynamic adjustment device for the extraction force during high-speed extraction of fine wires according to this application is used in a dynamic adjustment system for the extraction force during high-speed extraction of fine wires. The dynamic adjustment system comprises an extraction unit, a traction unit, and a tension unit. A drive module drives the traction unit to generate an extraction force, and performs diameter reduction by pulling the wire out of the extraction unit under the action of the extraction force. A measurement module measures the extraction resistance generated in the extraction unit in real time using a pressure sensor during the process of the extraction unit performing diameter reduction on the wire, and measures the back tension generated during the process of feeding the wire in real time using a force sensor. An adjustment module adjusts the currently measured back tension based on an established back tension control policy. The back tension control policy includes a first relational expression that defines the back tension utilization rate and a second relational expression that represents the mapping relationship between the extraction force and the tensile breaking force of the wire after diameter reduction by the extraction unit. This ensures that the wire drawing force remains stable throughout the high-speed drawing process, effectively reducing problems such as wire breakage, surface quality defects, and die wear, thereby improving production efficiency and the quality of finished fine wires, and extending the lifespan of the dies.

[0050] Based on the same concept as the present invention, an embodiment of this application provides one configuration of an electronic device 400, as shown in Figure 4. The electronic device 400 comprises at least one processor 401, at least one network interface 404 or other user interface 403, memory 405, and at least one communication bus 402. The communication bus 402 is used for connecting and communicating between these components. Optionally, the electronic device 400 may include a user interface 403, such as a display (e.g., a touch panel, LCD, CRT, holographic, or projector), a keyboard, or a pointing device (e.g., a mouse, trackball, touchpad, or touch panel).

[0051] Memory 405 includes read-only memory and random-access memory, providing instructions and data to processor 401. A portion of memory 405 may further include non-volatile random-access memory (NVRAM).

[0052] In some embodiments, memory 405 stores executable modules or data structures, or subsets thereof, or extensions thereof, such as those described below.

[0053] Operating System 4051: Includes various system programs and performs various basic business operations and hardware-based tasks.

[0054] Application module 4052: Includes application programs that implement various application tasks, such as a launcher, media player, and browser.

[0055] In the embodiment of this application, the processor 401 is configured to execute steps in a method for dynamically adjusting the extraction force during high-speed extraction of fine wires by calling a program or instruction stored in memory 405, thereby enabling the extraction force to be measured and adjusted dynamically in real time, and improving stability during the high-speed extraction process of fine wires.

[0056] This application further provides a computer-readable storage medium in which a computer program is stored, and when the computer program is executed by a processor, steps in a method for dynamically adjusting the extraction force during high-speed extraction of fine wires are performed.

[0057] Specifically, the storage medium is a general-purpose storage medium such as a portable magnetic disk or a hard disk, and the method for dynamically adjusting the extraction force during high-speed extraction of the fine wire described above is executed when a computer program is executed on the storage medium.

[0058] In the embodiments of this application, the apparatus and methods described can be implemented in other ways. The above-described apparatus embodiments are illustrative only. For example, the unit divisions are merely logical functional divisions and may be different in actual implementations. For example, multiple units or components may be combined or integrated into another system, or some features may be omitted or not implemented. Furthermore, the mutual coupling, direct coupling or communication connection shown or discussed may be indirect coupling or communication connection via several communication interfaces, devices or units, or connections of electrical, mechanical or other forms.

[0059] The units described above 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 the same location or distributed across multiple network units. To achieve the objectives of this embodiment, it is possible to select some or all of the units according to the actual requirements.

[0060] Furthermore, each functional unit in the embodiments of this application may be integrated into a single processing unit, function as an independent physical entity, or two or more units may be integrated into a single unit.

[0061] The functionality is implemented in the form of a software function unit, which, when sold or used as an independent product, can be stored on a computer-readable storage medium. Under this understanding, the technical proposal of this application, or any part thereof that contributes to the prior art, or any part thereof, can be implemented in the form of a software product. This computer software product is stored on a storage medium and includes a number of instructions for a computer device (such as a personal computer, server, or network device) to perform all or part of the steps of the methods in each embodiment of this application. The storage medium includes various media capable of storing program code, such as USB disks, portable hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0062] The above-described embodiments are merely specific examples illustrating the technical proposal of this application and do not limit it; therefore, the scope of protection of this application is not limited thereto. Although this application has been described in detail using the above-described embodiments, as those skilled in the art will understand, improvements or modifications may be made to the technical proposal described in the above embodiments within the technical scope disclosed in this application, and some of the technical features therein may be replaced by equivalent substitutions. These improvements, modifications, or substitutions do not deviate from the essence of the technical proposal in question from the gist or scope of the technical proposal in the embodiments of this application, and all fall within the scope of protection of this application. For this reason, the scope of protection of this application is the same as that of the claims. [Explanation of symbols]

[0063] 1 1st fixed pulley 2 Dice Frames 3. Support spring 4. Wire drawing die 5. Pressure Sensor 6 Second fixed pulley 7. Pull-out driven roll 8. Pull-out drive roll 9. Tension Frame 10 Tension Rods 11 Tension Roll

Claims

1. A method for dynamically adjusting the extraction force during high-speed extraction of fine wires, Used in dynamic adjustment systems for the extraction force during high-speed extraction of fine wires. The dynamic adjustment system comprises a pulling unit, a traction unit, and a tension unit, wherein a wire is passed through the pulling unit and first wrapped around the traction unit, and then passed through the tension unit to the next pulling unit, thereby performing a multi-stage diameter reduction process, a pressure sensor is installed in the pulling unit, and a force sensor is installed in the tension unit. The aforementioned dynamic adjustment method is The steps include: driving the traction unit to generate a pulling force, and performing a diameter reduction process by pulling the wire out of the pulling unit under the action of the pulling force; The process involves measuring the drawing resistance generated in the drawing unit in real time using the pressure sensor during the process of reducing the diameter of the wire, and measuring the back tension generated in real time using the force sensor during the process of feeding the wire. The process includes the step of making a dynamic adjustment to the currently measured back tension based on an established back tension control policy, A method for dynamically adjusting the pulling force during high-speed pulling of fine wires, characterized in that the back tension control policy includes a first relational expression that defines the back tension utilization rate and a second relational expression that represents the mapping relationship between the pulling force and the tensile breaking force of the wire after diameter reduction processing by the pulling unit.

2. The first and second relations are as follows: [Math 1] [Math 2] Here, γ represents the back tension utilization rate, and M ０ This represents the extraction resistance generated in the extraction unit when the back tension is zero, and M ｑ F represents the extraction resistance generated in the extraction unit when the back tension is q, where q represents the back tension, a and b represent the lower limit and upper limit of the back tension utilization rate, respectively, F represents the extraction force, β represents the safety factor in the extraction process, and F σ The method for dynamically adjusting the pulling force during high-speed pulling of fine wires according to claim 1, characterized in that represents the tensile breaking force of the wire after diameter reduction processing by the pulling unit.

3. Dynamically adjusting the currently measured back tension based on an established back tension control policy is possible. The steps include: calculating the back tension utilization rate and pull-out force based on the currently measured pull-out resistance and back tension; If the calculated back tension utilization rate is less than the lower limit of the predetermined back tension utilization rate, or if the calculated pull-out force is less than the safety factor β and the tensile breaking force F of the wire after diameter reduction processing, σ A method for dynamically adjusting the pulling force during high-speed pulling of a fine wire according to claim 2, comprising the steps of: controlling the tension unit to reduce the back tension if the product of the two is greater than the calculated back tension utilization rate, and controlling the tension unit to increase the back tension if the calculated back tension utilization rate is greater than or equal to the upper limit of a predetermined back tension utilization rate.

4. The tension unit is used to decrease or increase the back tension in a predetermined first step width, where the first step width is 0.1% to 0.5%q ０ / s and q ０ The method for dynamically adjusting the pulling force during high-speed pulling of a fine wire according to claim 3, characterized in that it represents the set initial back tension.

5. Dynamically adjusting the currently measured back tension based on an established back tension control policy is possible. A step of calculating the range of variation in the pull-out force based on the pull-out force before and after adjusting the back tension, The method for dynamically adjusting the pulling force during high-speed pulling of a fine wire according to claim 3, further comprising the step of controlling the pulling unit to reduce the pulling speed until the range of variation of the pulling force falls below a predetermined variation range threshold, if the calculated range of variation of the pulling force exceeds a predetermined variation range threshold.

6. The traction unit is controlled to reduce the pulling speed by a predetermined second step width, and the second step width is 1% to 3% V ０ / s and V ０ The method for dynamically adjusting the drawing force during high-speed drawing of a fine wire according to claim 5, characterized in that represents a set initial drawing speed.

7. Measuring the tensile breaking force of a wire after its diameter has been reduced is possible. The steps include fixing the wire, after its diameter has been reduced according to a predetermined gauge length, to the fixture of the tensile testing machine, The steps include applying a tensile force to the wire at a predetermined stretching speed using the aforementioned tensile testing machine, A method for dynamically adjusting the tensile force during high-speed drawing of a fine wire according to claim 3, characterized by comprising the step of recording the tensile force at the time the wire breaks and using the measured tensile breaking force as the tensile force.

8. A dynamic adjustment device for the extraction force during high-speed extraction of fine wires, Used in dynamic adjustment systems for the extraction force during high-speed extraction of fine wires. The dynamic adjustment system comprises a pulling unit, a traction unit, and a tension unit, wherein a wire is passed through the pulling unit and first wrapped around the traction unit, and then passed through the tension unit to the next pulling unit, thereby performing a multi-stage diameter reduction process, a pressure sensor is installed in the pulling unit, and a force sensor is installed in the tension unit. The aforementioned dynamic adjustment device is A drive module configured to drive the traction unit to generate an extraction force, and to perform diameter reduction processing by pulling the wire out of the extraction unit under the action of the extraction force, A measuring module configured to measure in real time the drawing resistance generated in the drawing unit during the process of reducing the diameter of the wire using the pressure sensor, and to measure in real time the back tension generated during the process of feeding the wire using the force sensor, The system comprises an adjustment module configured to perform dynamic adjustments to the currently measured back tension based on an established back tension control policy, The back tension control policy is characterized by including a first relational expression that defines the back tension utilization rate and a second relational expression that represents the mapping relationship between the pull-out force and the tensile breaking force of the wire after diameter reduction processing by the pull-out unit, thereby providing a dynamic adjustment device for the pull-out force during high-speed pull-out of fine wires.

9. It is an electronic device, An electronic device comprising a processor, memory, and a bus, wherein machine-readable instructions executable by the processor are stored in the memory, and when the electronic device is in operation, the processor and the memory communicate via the bus, and when the machine-readable instructions are executed by the processor, the steps of the method for dynamically adjusting the pulling force during high-speed pulling of a fine wire as described in any one of claims 1 to 7 are performed.

10. A computer-readable storage medium, A computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method for dynamically adjusting the pulling force during high-speed pulling of fine wires as described in any one of claims 1 to 7 are performed.

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