A 3D printing consumables wire drawing machine

Abstract

The present invention discloses a wire drawing machine for 3D printing consumables, which belongs to the technical field of wire drawing machines, and includes a base, a controller arranged on one side of the base, a winding mechanism, a wire arrangement mechanism and a heating mechanism are respectively arranged on the upper end of the base, and the heating mechanism is located between the winding mechanism and the wire arrangement mechanism. A U-shaped mounting frame is fixedly arranged on the upper end of the base, and a cutting component for cutting the material released by the wire arrangement mechanism is arranged on the inner side of the U-shaped mounting frame; the controller includes a data analysis module and a judgment execution module. The present invention ensures the stable operation of the winding, wire arrangement and heating mechanisms in the equipment diagnosis unit and timely discovers potential problems through the coordinated work of each unit of the data analysis module and the judgment execution module in the controller; the environmental analysis unit monitors and adjusts the equipment parameters in real time to cope with the influence of environmental changes on the wire drawing quality; the quality assessment and adjustment unit achieves precise improvement of the wire drawing quality through multi-angle assessment and dynamic compensation.

Description

Technical Field

[0001] The present invention relates to the technical field of wire drawing machines, and in particular to a wire drawing machine for 3D printing consumables. Background Art

[0002] 3D printing technology is an emerging technology that is developing rapidly in the manufacturing industry. The current 3D printing technology has been widely used in product prototypes, mold making, bioengineering and medicine, construction and other fields. For the drawing part of 3D printing wire, a wire drawing machine is usually used to draw the consumables. At present, most wire drawing machines are mainly composed of a winding mechanism, a wire arrangement mechanism and a heating mechanism. The consumable materials are heated, extruded and drawn, and the winding mechanism is used to reel in the drawn materials. However, in actual use, this traditional wire drawing machine has some obvious problems.

[0003] On the one hand, when the consumable material needs to be cut, it is difficult to quickly cut the consumable material because the winding mechanism keeps the consumable material in a conveying state during operation. In addition, the winding operation of the winding mechanism is easily affected during the cutting process, which may cause uneven wire drawing or even cause the wire to be broken. Once the wire is broken, the broken material remains in the heating mechanism, which will seriously affect subsequent operations, reduce production efficiency, and increase maintenance costs.

[0004] On the other hand, the existing wire drawing machines have obvious deficiencies in their consideration of environmental factors and operating conditions during operation. First, there is a lack of real-time monitoring of the environment and effective response measures. When factors such as temperature, humidity, dust concentration and vibration in the environment change, it may affect the physical properties of the consumables, thereby affecting the quality of wire drawing. For example, temperature changes may change the melting state of the consumables, affecting the diameter uniformity and material stability of the wire drawing; when the humidity is high, the consumables may be damp, affecting their melting effect in the heating mechanism; excessive dust concentration may contaminate the consumables and reduce the printing quality; vibration may interfere with the normal operation of the equipment and make the wire drawing process unstable. Secondly, the operating status diagnosis is not accurate and comprehensive enough. The operating status of key components such as the winding mechanism, the wire arrangement mechanism and the heating mechanism is directly related to the quality and efficiency of wire drawing, but the current wire drawing machines often find it difficult to detect potential problems in the operation of the mechanism in a timely manner. Summary of the invention

[0005] The purpose of the present invention is to propose a 3D printing consumables wire drawing machine in order to solve the above-mentioned technical problems.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A 3D printing consumables wire drawing machine, comprising a base, a controller arranged on one side of the base, a winding mechanism, a wire arrangement mechanism and a heating mechanism are respectively arranged on the upper end of the base, the heating mechanism is located between the winding mechanism and the wire arrangement mechanism, a U-shaped mounting frame is fixedly arranged on the upper end of the base, and a cutting component for cutting the material released by the wire arrangement mechanism is arranged inside the U-shaped mounting frame;

[0008] The controller includes a data analysis module and a determination execution module;

[0009] The data analysis module is used to analyze and process the operation process of the 3D printing consumables wire drawing machine; the determination execution module is used to process according to the analysis results of the data analysis module to obtain and execute the corresponding execution strategy.

[0010] As a further description of the above technical solution:

[0011] The cutting assembly includes a U-shaped sliding frame slidably arranged on the inner side of the U-shaped mounting frame and fixed blocks symmetrically arranged on both sides of the inner top surface of the U-shaped mounting frame, a screw rod is rotatably arranged on the inner sides of the two fixed blocks, a motor for driving the screw rod to rotate is arranged on the outer side of one of the fixed blocks, a threaded seat matching with the screw rod thread is fixedly arranged on the upper end of the U-shaped sliding frame, and two cutting pieces for cutting the material released by the wire arrangement mechanism up and down are symmetrically arranged on the inner side of the U-shaped sliding frame.

[0012] As a further description of the above technical solution:

[0013] The cutting piece includes a clamping plate and a movable plate slidably arranged on the inner side of the U-shaped sliding frame, a cutting knife is fixedly arranged on one side of the movable plate, the clamping plate is connected to the surface of the movable plate by a compression spring, guide rods are fixedly arranged on both sides of the movable plate, vertical guide grooves for sliding of the guide rods are provided on both sides of the U-shaped sliding frame, and an oblique guide groove cooperating with the guide rod for driving the relative movement of the guide rod is provided on the inner side of the U-shaped mounting frame.

[0014] As a further description of the above technical solution:

[0015] The data analysis module includes an equipment diagnosis unit, an environment analysis unit, an environment and equipment comprehensive processing unit, a wire drawing quality assessment unit and a wire drawing compensation analysis unit;

[0016] The equipment diagnosis unit is used to diagnose and analyze the operating status of each mechanism of the 3D printing filament wire drawing machine during operation, and obtain the machine valuation of the 3D printing filament wire drawing machine and the structural valuation of each mechanism; wherein each mechanism includes a winding mechanism, a wire arrangement mechanism and a heating mechanism;

[0017] The environmental analysis unit is used to perform environmental impact analysis on the operation process of the 3D printing consumables wire drawing machine to obtain environmental analysis results; the environmental analysis results include the ring parameter difference value, ring parameter mean value, ring parameter difference fluctuation value, ring parameter extreme value, ring parameter impact value and environmental comprehensive impact value of any environmental parameter in the environmental information corresponding to the mechanism;

[0018] The environment and equipment comprehensive processing unit comprehensively analyzes the environmental analysis results and operation analysis results corresponding to the mechanism, performs weighted calculation on the structural valuation of each mechanism in the 3D printing consumables wire drawing machine and its corresponding environmental comprehensive impact value to obtain the structural and environmental comprehensive valuation corresponding to the mechanism, performs weighted calculation on the structural and environmental comprehensive valuation of all mechanisms in the 3D printing consumables wire drawing machine to obtain the machine and environmental comprehensive evaluation value; marks the machine and environmental comprehensive evaluation value of the 3D printing consumables wire drawing machine and the structural and environmental comprehensive valuation of each mechanism as the operation analysis result;

[0019] A wire drawing quality assessment unit is used to conduct quality assessment and analysis on the formed wire drawing during the operation of the 3D printing filament wire drawing machine to obtain a wire drawing assessment value;

[0020] The wire drawing compensation analysis unit is used to perform weighted processing on the wire drawing evaluation value and the structural environment comprehensive estimation value corresponding to each mechanism in the operation analysis result to obtain the dynamic compensation coefficient corresponding to the mechanism;

[0021] The determination execution module is used to receive the analysis results of each unit in the data analysis module, set the policy execution group according to the corresponding analysis result, match the analysis result with the policy execution group corresponding to the result, so as to generate and execute the execution policy corresponding to the analysis result; wherein, the set policy execution group includes a normal execution strategy, a slightly deviated execution strategy, and an abnormal execution strategy.

[0022] As a further description of the above technical solution:

[0023] The operating status of each mechanism of the 3D printing filament drawing machine during operation is diagnosed and analyzed. The specific steps are as follows:

[0024] Obtaining the operating status information of each mechanism of the 3D printing filament wire drawing machine during operation, setting a preset value of any parameter in the operating status information of the mechanism according to the mechanism, and subtracting the preset value corresponding to the parameter from the value of any parameter in the operating status information corresponding to the mechanism to obtain a preset parameter difference;

[0025] The startup time of the 3D printing consumables wire drawing machine is taken as the first time, and the shutdown time is taken as the second time; if there is no shutdown time, the current time is marked as the second time; the time area between the first time and the current time is marked as the equipment operation time zone; the preset parameter difference of the parameters in the operation status information of each mechanism in the equipment operation time zone is analyzed to obtain the design and operation analysis results; the design and operation analysis results include the design and operation time length, the pre-parameter mean difference, the pre-parameter difference fluctuation value, the pre-parameter extreme difference value, and the parameter influence value;

[0026] The participating influence values ​​of all parameters in the operation status information corresponding to the mechanism are weighted to obtain the corresponding structural value of the mechanism;

[0027] The structural estimates of all mechanisms on the 3D printing filament drawing machine are weighted to obtain the machine estimate.

[0028] As a further description of the above technical solution:

[0029] The preset parameter differences of the parameters in the operating status information of each mechanism in the equipment operating zone are analyzed to obtain the design and operation analysis results. The specific steps are as follows:

[0030] Obtain the time length of the equipment operation time zone and mark it as the set operation time zone; obtain the preset parameter difference of the parameters in the operation status information of each mechanism within the equipment operation time zone, perform mean calculation on the preset parameter difference of the parameters in the operation status information within the equipment operation time zone, and obtain the pre-parameter mean difference; perform standard deviation calculation on the preset parameter difference of the parameters in the operation status information within the equipment operation time zone, and obtain the pre-parameter difference fluctuation value; perform difference calculation on the maximum and minimum preset parameter differences of the parameters in the operation status information within the equipment operation time zone, and obtain the pre-parameter extreme difference; perform weighted processing on the set operation time zone, preset parameter difference, pre-parameter mean difference, pre-parameter difference fluctuation value and pre-parameter extreme difference of the parameters to obtain the participation influence value; mark the set operation time zone, pre-parameter mean difference, pre-parameter difference fluctuation value, pre-parameter extreme difference and participation influence value as the set operation analysis results.

[0031] As a further description of the above technical solution:

[0032] The data analysis module also includes an early warning unit; the early warning unit is also used to perform early warning analysis on the operation analysis results in the historical records, specifically:

[0033] Set the time monitoring range, and number the equipment operation time zones within the time monitoring range in chronological order; establish a diagnostic change line graph for any result in the operation analysis results, input the number of any result in the operation analysis results into the diagnostic change line graph according to the chronological order of the equipment operation time zones, and mark the position of the numerical value corresponding to the result in the line graph as a historical point; connect adjacent historical points to obtain a historical line; calculate the slope of the historical line; mark a slope with a positive value as a positive slope, and mark a slope with a negative value as a negative slope; sum up all positive slopes and negative slopes in the diagnostic change line graph to obtain a positive slope total value and a negative slope total value; perform weighted calculation on the positive slope total value and the negative slope total value to obtain a slope shadow value;

[0034] Set the normal range of slope floating, match the slope of the historical line with the normal range of slope floating, and mark the slope that is not in the normal range of slope floating as an abnormal slope; count the number of abnormal slopes and mark them as abnormal floating numbers; obtain the operation analysis results of all equipment operation time zones within the set time monitoring range, calculate the average of any operation analysis results in all equipment operation time zones, and obtain the historical average corresponding to the result;

[0035] Calculate the standard deviation of any operation analysis result in the equipment operation time zone within the set time monitoring range to obtain the historical fluctuation value; perform weighted processing on the oblique shadow value, abnormal floating number, historical mean, and historical fluctuation value corresponding to the result to obtain the historical diagnosis value corresponding to the result; mark the historical diagnosis value of any result in the operation analysis result as a warning analysis result.

[0036] As a further description of the above technical solution:

[0037] The environmental impact analysis of the operation process of the 3D printing filament drawing machine is carried out as follows:

[0038] Obtain environmental information of each mechanism during the operation of the 3D printing filament drawing machine, including ambient temperature, humidity, dust concentration, and vibration;

[0039] Set a normal value of any environmental parameter in the environmental information, and perform difference calculation between the numerical value of any environmental parameter in the environmental information and the normal value corresponding to the environmental parameter to obtain an environmental parameter difference value;

[0040] The time area within the set environmental monitoring time length before the current moment is marked as the environmental monitoring time zone, and the mean and standard deviation of the ring parameter difference values ​​of all collection moments in the environmental monitoring time zone are calculated to obtain the ring parameter mean value and the ring parameter difference fluctuation value; the difference between the maximum and minimum ring parameter difference values ​​in the environmental monitoring time zone is calculated to obtain the ring parameter extreme difference value; the ring parameter difference value, the ring parameter mean value, the ring parameter difference fluctuation value and the ring parameter extreme difference value are weighted to obtain the environmental parameter impact value corresponding to the environmental parameter; the environmental parameter impact values ​​of all environmental parameters in the environmental information of the organization are weighted to obtain the environmental comprehensive impact value; the ring parameter difference value, the ring parameter mean value, the ring parameter difference fluctuation value, the ring parameter extreme difference value, the environmental parameter impact value and the environmental comprehensive impact value of all environmental parameters in the environmental information corresponding to the organization are marked as environmental analysis results.

[0041] As a further description of the above technical solution:

[0042] The quality assessment and analysis of the wire drawing during the operation of the 3D printing filament wire drawing machine is as follows:

[0043] Acquire a captured image of a set area between a winding mechanism and a heating mechanism, process the formed wire drawing in the captured image by edge recognition technology, and obtain the outer contour of the formed wire drawing; establish a plane coordinate system, input the position of any point in the outer contour of the formed wire drawing into the plane coordinate system, and form an outer contour line by all points of the outer contour; set a preset reference contour line for the outer contour line of the formed wire drawing in the plane coordinate system, calculate the shortest distance between any point on the outer contour line and the reference contour line to obtain a base distance value; sum the base distance values ​​of all points on the outer contour line to obtain a contour difference; acquire captured images from multiple shooting angles, perform weighted processing on the contour differences of the captured images from all shooting angles to obtain a wire profile value; set a wire drawing monitoring time zone, calculate the mean and standard deviation of the wire profile values ​​in the wire drawing monitoring time zone to obtain a wire profile mean value and a wire profile fluctuation value; perform weighted processing on the wire profile value, wire profile mean value, and wire profile fluctuation value to obtain a wire drawing evaluation value.

[0044] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0045] 1. In the present invention, by arranging a U-shaped mounting frame, a U-shaped sliding frame, a screw rod, a threaded seat and a cutting assembly, the two cutting knives are relatively close to each other to achieve the effect of cutting the material up and down while ensuring the stable winding operation of the winding mechanism. Then, under the winding action of the winding mechanism, the material is pulled out of the heating mechanism, avoiding the need to stop the winding mechanism during the cutting process, which affects the work efficiency.

[0046] 2. In the present invention, through the coordinated work of each unit of the data analysis module and the judgment execution module in the controller, the stable operation of the winding, wiring and heating mechanisms is ensured in the equipment diagnosis unit, and potential problems are discovered in time; the environmental analysis unit monitors and adjusts the equipment parameters in real time to cope with the impact of environmental changes on the wire drawing quality; the quality assessment and adjustment unit achieves precise improvement of the wire drawing quality through multi-angle assessment and dynamic compensation. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 The appearance of a wire drawing machine provided according to an embodiment of the present invention is shown;

[0048] Figure 2 A schematic diagram of the structure of a U-shaped mounting frame provided according to an embodiment of the present invention is shown;

[0049] Figure 3 It shows a schematic structural diagram of a cutting assembly provided according to an embodiment of the present invention;

[0050] Figure 4 An exploded schematic diagram of a cut-off piece structure provided according to an embodiment of the present invention is shown;

[0051] Figure 5 A principle block diagram of a controller provided according to an embodiment of the present invention is shown.

[0052] Legend: 1. Base; 2. Controller; 3. Winding mechanism; 4. Wire arrangement mechanism; 5. Heating mechanism; 6. U-shaped mounting bracket; 7. Compression spring; 8. Screw rod; 9. Threaded seat; 10. Motor; 11. Oblique guide groove; 12. Fixed block; 13. U-shaped sliding bracket; 14. Vertical guide groove; 15. Cutting knife; 16. Guide rod; 17. Clamping plate; 18. Moving plate. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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.

[0054] like Figure 1-Figure 5 As shown, a 3D printing consumables wire drawing machine includes a base 1, a controller 2 arranged on one side of the base 1, a winding mechanism 3, a wire arrangement mechanism 4 and a heating mechanism 5 are respectively arranged on the upper end of the base 1, and the heating mechanism 5 is located between the winding mechanism 3 and the wire arrangement mechanism 4. A U-shaped mounting frame 6 is fixedly arranged on the upper end of the base 1, and a cutting component for cutting the material released by the wire arrangement mechanism 4 is arranged inside the U-shaped mounting frame 6;

[0055] The controller 2 includes a data analysis module and a determination execution module;

[0056] The data analysis module is used to analyze and process the operation process of the 3D printing consumables wire drawing machine; the judgment execution module is used to process according to the analysis results of the data analysis module to obtain the corresponding execution strategy and execute it.

[0057] Furthermore, the cutting assembly includes a U-shaped sliding frame 13 slidably arranged on the inner side of the U-shaped mounting frame 6 and fixed blocks 12 symmetrically arranged on both sides of the inner top surface of the U-shaped mounting frame 6. A screw rod 8 is rotatably arranged on the inner side of the two fixed blocks 12. A motor 10 for driving the screw rod 8 to rotate is arranged on the outer side of one of the fixed blocks 12. The motor 10 is electrically connected to the controller 2. A threaded seat 9 that cooperates with the thread of the screw rod 8 is fixedly arranged on the upper end of the U-shaped sliding frame 13. Two cutting pieces for cutting the material released by the wire arrangement mechanism 4 up and down are symmetrically arranged on the inner side of the U-shaped sliding frame 13. When in use, the rotation of the motor 10 drives the screw rod 8 to rotate, and the rotation of the screw rod 8 drives the threaded seat 9 to move toward one side of the winding mechanism 3. The moving speed of the threaded seat 9 is greater than the winding speed of the winding mechanism 3. During the movement, the two cutting pieces move relative to each other to cut the released material up and down. During this process, the winding of the winding mechanism 3 will not be affected, effectively ensuring the stable transportation of the material.

[0058] Further, the cutting piece includes a clamping plate 17 and a movable plate 18 slidably arranged on the inner side of the U-shaped sliding frame 13, a cutting knife 15 is fixedly arranged on one side of the movable plate 18, the clamping plate 17 is connected to the surface of the movable plate 18 by a compression spring 7, guide rods 16 are fixedly arranged on both sides of the movable plate 18, vertical guide grooves 14 for sliding the guide rods 16 are provided on both sides of the U-shaped sliding frame 13, and an oblique guide groove 11 for driving the guide rods 16 to move relative to each other is provided on the inner side of the U-shaped mounting frame 6. When in use, the screw rod 8 rotates to drive the threaded seat 9 The threaded seat 9 drives the U-shaped sliding frame 13 to move, and the movement of the U-shaped sliding frame 13 drives the cutting piece to move. During this process, the guide rod 16 moves, and under the action of the oblique guide groove 11 and the vertical guide groove 14, the two guide rods 16 are moved close to each other, that is, the two moving plates 18 are moved close to each other. The moving plates 18 move close to each other to first press the material to ensure the stability of the subsequent cutting operation of the cutting knife 15, and then continue to move close to compress the compression spring 7. At this time, the two cutting knives 15 continue to move close to each other to cut the material.

[0059] Furthermore, the cutting knife 15 is fixedly connected to the side of the movable plate 18 by bolts, so that the cutting knife 15 can be easily disassembled and replaced during use, thereby preventing the cutting knife 15 from becoming blunt and making it difficult to quickly cut the material.

[0060] Further, the data analysis module includes an equipment diagnosis unit, an environment analysis unit, an environment and equipment comprehensive processing unit, a wire drawing quality assessment unit and a wire drawing compensation analysis unit;

[0061] The equipment diagnosis unit is used to diagnose and analyze the operating status of each mechanism of the 3D printing filament wire drawing machine during operation, and obtain the machine valuation of the 3D printing filament wire drawing machine and the structural valuation of each mechanism; wherein each mechanism includes a winding mechanism 3, a wire arrangement mechanism 4 and a heating mechanism 5;

[0062] The environmental analysis unit is used to perform environmental impact analysis on the operation process of the 3D printing consumables wire drawing machine to obtain environmental analysis results; the environmental analysis results include the ring parameter difference value, ring parameter mean value, ring parameter difference fluctuation value, ring parameter extreme value, ring parameter impact value and environmental comprehensive impact value of any environmental parameter in the environmental information corresponding to the mechanism;

[0063] The environment and equipment comprehensive processing unit comprehensively analyzes the environmental analysis results and operation analysis results corresponding to the mechanism, performs weighted calculation on the structural valuation of each mechanism in the 3D printing consumables wire drawing machine and its corresponding environmental comprehensive impact value to obtain the structural and environmental comprehensive valuation corresponding to the mechanism, performs weighted calculation on the structural and environmental comprehensive valuation of all mechanisms in the 3D printing consumables wire drawing machine to obtain the machine and environmental comprehensive evaluation value; marks the machine and environmental comprehensive evaluation value of the 3D printing consumables wire drawing machine and the structural and environmental comprehensive valuation of each mechanism as the operation analysis result;

[0064] A wire drawing quality assessment unit is used to conduct quality assessment and analysis on the formed wire drawing during the operation of the 3D printing filament wire drawing machine to obtain a wire drawing assessment value;

[0065] The wire drawing compensation analysis unit is used to perform weighted processing on the wire drawing evaluation value and the structural environment comprehensive estimation value corresponding to each mechanism in the operation analysis result to obtain the dynamic compensation coefficient corresponding to the mechanism;

[0066] The determination execution module is used to receive the analysis results of each unit in the data analysis module, set the strategy execution group according to the corresponding analysis results, match the analysis results with the strategy execution group corresponding to the results, so as to generate and execute the execution strategy corresponding to the analysis results; wherein, the set strategy execution group includes normal execution strategy, warning execution strategy, and abnormal execution strategy.

[0067] It should be further explained that when any analysis result of each unit in the data analysis module matches the normal execution strategy, it means that any unit in the data analysis module is in a normal state and does not require any processing; each mechanism of the equipment operates stably, the winding mechanism 3 winds at a suitable speed, the wire arrangement mechanism 4 arranges the wire accurately, the heating mechanism 5 maintains a stable temperature, the environmental factors are also within a reasonable range, the wire drawing quality is qualified, and the entire system performs production operations efficiently and orderly;

[0068] When the analysis results of each unit in the data analysis module match the early warning execution strategy, specifically:

[0069] When the early warning execution strategy of any mechanism in the equipment diagnosis unit is generated, it means that the difference between the operating status information parameter corresponding to the mechanism on the 3D printing consumables wire drawing machine and the preset value begins to increase, but still does not exceed a large range. The pre-parameter mean difference, pre-parameter fluctuation value, and pre-parameter extreme difference in the operation analysis result have increased, and the pre-parameter influence value has also begun to increase, but has not reached the level of triggering a fault; at this time, the system sends out an early warning signal to remind the operator to pay attention; and fine-tune the operating parameters of the corresponding mechanism according to the dynamic compensation coefficient corresponding to the mechanism, such as slightly reducing the speed of the winding mechanism 3, or adjusting the wiring accuracy of the wiring mechanism 4, to prevent the problem from further deteriorating;

[0070] When the early warning execution strategy of the environmental analysis unit is generated, it indicates that the ring parameter difference value of certain parameters in the environmental information corresponding to the mechanism increases, the ring parameter mean value begins to deviate from the normal value, the ring parameter difference fluctuation value and the ring parameter extreme value increase, and the ring parameter influence value increases. At this time, the system quickly sends out an environmental early warning signal to remind the operator to pay close attention to environmental changes. At the same time, the system automatically adjusts the parameters of each mechanism of the wire drawing machine according to the dynamic compensation coefficient corresponding to the mechanism to adapt to the changing environment and ensure that the wire drawing quality is not affected. For example, the temperature of the heating mechanism 5 and the speed of the winding mechanism 3 can be appropriately adjusted according to the changes in environmental parameters to ensure the stability of the wire drawing process.

[0071] When the early warning execution strategy of the wire drawing quality assessment unit is generated, it indicates that the quality of the formed wire drawing is unstable to a certain extent. At this time, the system sends out a wire drawing quality early warning signal to remind the operator to pay attention to the changes in wire drawing quality. The operator should check each link in the production process and may need to adjust the temperature of the heating mechanism 5, the accuracy of the wire arrangement mechanism 4, etc. to optimize the wire drawing process; at the same time, the system fine-tunes the operating parameters of the relevant mechanisms based on the dynamic compensation coefficient obtained by weighted processing of the wire drawing evaluation value and the comprehensive valuation of the corresponding structure of the mechanism, to ensure that the wire drawing quality returns to a qualified state as soon as possible.

[0072] When the early warning execution strategy of the early warning unit is generated, it means that the 3D printing consumables wire drawing machine or any of its mechanisms has a certain unstable trend, and the parameters such as slope, total positive slope value, total negative slope value, and abnormal floating number begin to change abnormally, but have not yet reached a serious level, and the historical mean and historical fluctuation values ​​have also changed to a certain extent. At this time, the system sends out a system early warning signal, and adjusts the pre-operation parameters of all mechanisms according to the dynamic compensation coefficient of each mechanism, such as adjusting the speed of the winding mechanism 3 and the wiring interval of the wiring mechanism 4, to prevent the unstable trend from further developing;

[0073] When any unit in the data analysis module generates a corresponding fault execution strategy, it means that a serious problem has occurred in the equipment part or related factors corresponding to the unit, which has caused a major obstacle to the normal operation of the entire 3D printing filament drawing machine;

[0074] If the equipment diagnosis unit generates a fault execution strategy, it means that the operation status of key mechanisms such as the winding mechanism 3, the wire arrangement mechanism 4 or the heating mechanism 5 is seriously abnormal, which may be manifested as a huge gap between the operation status information parameters and the preset values. The operation analysis results show that the operation time is chaotic, the pre-parameter mean difference deviates greatly, the pre-parameter difference fluctuation value is extremely high, the pre-parameter extreme difference value exceeds the reasonable range too much, and the parameter influence value also reaches a dangerous level. In this case, the operation of the faulty mechanism is stopped immediately, and an emergency fault alarm is issued so that the operator can quickly take maintenance actions. At the same time, in order to prevent the fault from spreading, other non-faulty mechanisms also need to be adjusted or suspended according to the actual situation;

[0075] If the environmental analysis unit generates a fault execution strategy, it means that the environment in which the equipment is located has seriously deteriorated, which has had a great negative impact on the operation of the wire drawing machine. The parameters in the environmental information are far from the normal values, the ring parameter difference is huge, the ring parameter mean, ring parameter difference fluctuation value, and ring parameter extreme value are far beyond the normal range, and the ring parameter impact value is also in a high-risk state. The comprehensive environmental impact value makes it difficult for the system to operate normally. Immediately issue an environmental fault alarm to notify the operator to urgently deal with the environmental problem, stop the operation of the wire drawing machine, wait for the environment to return to an acceptable range before conducting a comprehensive inspection and startup, and conduct emergency maintenance and adjustment of the environmental adjustment equipment corresponding to the wire drawing machine, such as repairing the air conditioning system to adjust the temperature, cleaning or replacing the air purification equipment to reduce the dust concentration, etc.;

[0076] If the wire drawing quality assessment unit generates a fault execution strategy, it indicates that the quality of the formed wire drawing is seriously unqualified, and the wire drawing assessment value is greater than or equal to the wire drawing assessment threshold, indicating that there is a major problem in the wire drawing process. The wire drawing machine should be stopped immediately and a wire drawing quality fault alarm should be issued. The operator needs to conduct a comprehensive inspection of the wire drawing process to determine the root cause of the problem. The wire drawing may be unqualified due to reasons such as the temperature out of control of the heating mechanism 5 and the unstable speed of the winding mechanism 3. The relevant mechanisms should be repaired and adjusted. Only after ensuring that the wire drawing quality has returned to normal can the wire drawing machine be restarted for production.

[0077] If the early warning unit generates a fault execution strategy, it means that the overall operation of the 3D printing filament wire drawing machine has shown an extremely serious unstable trend. Parameters such as slope, total positive slope value, total negative slope value, and abnormal floating number are seriously abnormal, and the historical mean and historical fluctuation values ​​also deviate significantly from the normal range. At this time, the system should issue a serious system fault alarm and notify the operator to carry out emergency processing.

[0078] Furthermore, the operating status of each mechanism of the 3D printing filament drawing machine during operation is diagnosed and analyzed. The specific steps are as follows:

[0079] Obtain the operating status information of each mechanism of the 3D printing filament wire drawing machine during operation, set a preset value of any parameter in the operating status information of the mechanism according to the preset value, and subtract the preset value corresponding to the parameter from the value of any parameter in the operating status information corresponding to the mechanism to obtain the preset parameter difference YC1;

[0080] The startup time of the 3D printing consumables wire drawing machine is taken as the first time, and the shutdown time is taken as the second time; if there is no shutdown time, the current time is marked as the second time; the time area between the first time and the current time is marked as the equipment operation time zone; the preset parameter difference of the parameters in the operation status information of each mechanism in the equipment operation time zone is analyzed to obtain the design and operation analysis results; the design and operation analysis results include the design and operation time length, the pre-parameter mean difference, the pre-parameter difference fluctuation value, the pre-parameter extreme difference value, and the parameter influence value;

[0081] The weighted processing of the participation influence values ​​of all parameters in the operation status information corresponding to the organization is expressed as follows: , and obtain the corresponding value GY of the organization; where i and N respectively represent the number and total number of parameters in the operating status information corresponding to the organization, and iYC and ia respectively represent the participation influence value and its corresponding weight corresponding to the parameter numbered i in the operating status information;

[0082] The estimated values ​​of all the mechanisms on the 3D printing wire drawing machine are weighted. , and obtain the machine value JG; where j and M respectively represent the number of the mechanism numbered j on the 3D printing consumables wire drawing machine, and jGY and jb respectively represent the machine value of the mechanism numbered j and its corresponding weight.

[0083] Furthermore, the preset parameter differences of the parameters in the operation status information of each mechanism in the equipment operation zone are analyzed to obtain the design and operation analysis results. The specific steps are as follows:

[0084] The time length of the equipment operation time zone is obtained and marked as the set operation time length YC0; the preset parameter difference of the parameters in the operation status information of each mechanism in the equipment operation time zone is obtained, and the preset parameter difference of the parameters in the operation status information in the equipment operation time zone is averaged to obtain the pre-parameter mean difference YC2; the preset parameter difference of the parameters in the operation status information in the equipment operation time zone is standard deviation calculated to obtain the pre-parameter fluctuation value YC3; the maximum and minimum preset parameter differences of the parameters in the operation status information in the equipment operation time zone are difference calculated to obtain the pre-parameter extreme difference value YC4; the parameter set operation time length, preset parameter difference, pre-parameter mean difference, pre-parameter fluctuation value and pre-parameter extreme difference are weighted to obtain the parameter influence value YC, which is expressed by the formula: ; Among them, y0, y1, y2, y3, and y4 respectively represent the weight factors corresponding to the parameter's setting operation time, preset parameter difference, pre-parameter mean difference, pre-parameter difference fluctuation value, and pre-parameter extreme difference value; the setting operation time, pre-parameter mean difference, pre-parameter difference fluctuation value, pre-parameter extreme difference value, and parameter influence value are marked as setting operation analysis results.

[0085] It should be further explained that the operating status information of each mechanism includes the operating status information of the winding mechanism 3, the wire arrangement mechanism 4, and the heating mechanism 5. The operating status information of the winding mechanism 3 includes the winding speed, the current and voltage of the winding motor, the winding tension, the rotation angle and number of turns of the winding roller, and the vibration amplitude of the winding mechanism 3; the operating status information of the wire arrangement mechanism 4 includes the wire arrangement speed, the wire arrangement accuracy, the current, voltage and speed of the wire arrangement motor; the operating status information of the heating mechanism 5 includes the heating temperature, heating power, and temperature uniformity; wherein, the temperature uniformity can be obtained by photographing the heating mechanism 5 with a thermal imager to obtain a temperature distribution image of the entire heating area, analyzing the image with thermal imaging software to determine the temperature range of different areas, dividing the temperature distribution image into several small areas, and calculating the average temperature of each small area respectively, and then using a standard deviation method similar to the multi-point temperature measurement method to calculate the temperature uniformity index.

[0086] Furthermore, the data analysis module also includes an early warning unit; the early warning unit is also used to perform early warning analysis on the operation analysis results in the historical records, specifically:

[0087] Set the time monitoring range, and number the equipment operation time zones within the time monitoring range in chronological order; establish a diagnostic change line graph for any result in the operation analysis results, input the number of any result in the operation analysis results into the diagnostic change line graph according to the chronological order of the equipment operation time zones, and mark the position of the numerical value corresponding to the result in the line graph as a historical point; connect adjacent historical points to obtain a historical line; calculate the slope of the historical line; mark a positive slope as a positive slope, and mark a negative slope as a negative slope; sum up all positive slopes and negative slopes in the diagnostic change line graph to obtain a positive slope total value and a negative slope total value; perform weighted calculation on the positive slope total value and the negative slope total value to obtain a slope shadow value XY1;

[0088] Set the normal range of slope floating, match the slope of the historical line with the normal range of slope floating, mark the slope that is not in the normal range of slope floating as abnormal slope; and mark the number of statistical abnormal slopes as abnormal floating number XY2;

[0089] Obtain the operation analysis results of all equipment operation time zones within the set time monitoring range, calculate the average of any operation analysis results of all equipment operation time zones, and obtain the historical average value XY3 corresponding to the result;

[0090] Perform standard deviation calculation on any operation analysis result in the equipment operation time zone within the set time monitoring range to obtain the historical fluctuation value XY4;

[0091] The corresponding oblique shadow value, abnormal floating number, historical mean, and historical fluctuation value are weighted to obtain the historical diagnostic value XY corresponding to the result. The formula is: ; Among them, x1, x2, x3, and x4 respectively represent the weights corresponding to the oblique shadow value, abnormal floating number, historical mean, and historical fluctuation value of the results in the operation analysis results; the historical diagnostic value of any result in the operation analysis results is marked as a warning analysis result.

[0092] Furthermore, an environmental impact analysis was conducted on the operation process of the 3D printing filament drawing machine, specifically:

[0093] Obtain environmental information of each mechanism during the operation of the 3D printing filament drawing machine, including ambient temperature, humidity, dust concentration, and vibration;

[0094] Set a normal value of any environmental parameter in the environmental information, and perform a difference calculation between the numerical value of any environmental parameter in the environmental information and the normal value corresponding to the environmental parameter to obtain a ring parameter difference value HJ1;

[0095] The time zone within the set environmental monitoring time length before the current moment is marked as the environmental monitoring time zone, and the mean and standard deviation of the ring parameter difference values ​​at all collection moments in the environmental monitoring time zone are calculated to obtain the ring parameter mean value HJ2 and the ring parameter difference fluctuation value HJ3; the difference between the maximum and minimum ring parameter difference values ​​in the environmental monitoring time zone is calculated to obtain the ring parameter extreme difference value HJ4;

[0096] The environmental parameter difference value, environmental parameter mean value, environmental parameter difference fluctuation value, and environmental parameter extreme value are weighted to obtain the environmental parameter impact value HJ corresponding to the environmental parameter. The formula is: ; Among them, f1, f2, f3, and f4 respectively represent the weights corresponding to the ring parameter difference value, ring parameter mean value, ring parameter difference fluctuation value, and ring parameter extreme value of the environmental parameters in the environmental information;

[0097] The environmental impact values ​​of all environmental parameters in the environmental information of the organization are weighted to obtain the comprehensive environmental impact value K, which is expressed by the formula: ; Wherein, l and U represent the number and total number of environmental parameters in the environmental information respectively, lHJ and lc represent the environmental parameter impact value of the environmental parameter numbered l in the environmental information and its corresponding weight respectively; the environmental parameter difference value, environmental parameter mean value, environmental parameter difference fluctuation value, environmental parameter extreme value, environmental parameter impact value and environmental comprehensive impact value of all environmental parameters in the environmental information corresponding to the organization are marked as environmental analysis results.

[0098] Furthermore, the quality assessment and analysis of the wire drawing during the operation of the 3D printing filament wire drawing machine is carried out, specifically:

[0099] Acquire a captured image of a set area between the winding mechanism 3 and the heating mechanism 5, process the formed wire drawing in the captured image by edge recognition technology, and obtain the outer contour of the formed wire drawing; establish a plane coordinate system, input the position of any point in the outer contour of the formed wire drawing into the plane coordinate system, and form an outer contour line by all points of the outer contour; set a preset reference contour line for the outer contour line of the formed wire drawing in the plane coordinate system, calculate the shortest distance between any point on the outer contour line and the reference contour line to obtain a base distance value; sum the base distance values ​​of all points on the outer contour line to obtain a contour difference value LK;

[0100] The images taken at multiple shooting angles are obtained, and the contour differences of the images taken at all shooting angles are weighted to obtain the wire profile value SK1, which is expressed by the formula: ; Wherein, s and R represent the number and total number of shooting angles respectively, sLK and sp represent the profile difference of the shooting angle numbered s and its corresponding weight respectively;

[0101] Set the wire drawing monitoring time zone, calculate the mean and standard deviation of the wire profile values ​​in the wire drawing monitoring time zone to obtain the wire profile mean SK2 and the wire profile fluctuation value SK3;

[0102] The wire profile value, wire profile mean value, and wire profile fluctuation value are weighted to obtain the wire drawing evaluation value, which is expressed by the formula: ; Among them, k1, k2, and k3 represent the weights of the silk profile value, silk profile mean, and silk profile fluctuation value respectively.

[0103] Furthermore, the controller 2 also includes a storage module and a display module; the storage module is used to store the analysis results output by the data analysis module; and the display module is used to display the data stored in the storage module.

[0104] It should be further explained that the storage module can store various analysis results output by the data analysis module, including the diagnostic analysis results of the operating status of each mechanism by the equipment diagnosis unit, the environmental analysis results obtained by the environmental analysis unit, the structure and environment comprehensive evaluation value and the machine and environment comprehensive evaluation value calculated by the environment and equipment comprehensive processing unit, the wire drawing evaluation value of the wire drawing quality evaluation unit, and the dynamic compensation coefficient generated by the wire drawing compensation analysis unit, etc. The storage of these data provides a historical record for subsequent data analysis, troubleshooting and system optimization;

[0105] The display module provides an intuitive and convenient information display platform for operators. The display module can present the data stored in the storage module in a clear and easy-to-understand manner, such as displaying the operating parameters, environmental parameters and wire drawing quality assessment results of each mechanism in the form of charts and numbers. Operators can understand the operating status of the system in real time through the display module, detect abnormal situations in time and take corresponding measures. In addition, the display module can also display the data change trend within a specific time period according to the needs of the operator, helping the operator to better understand the operating rules of the system and provide a basis for decision-making.

[0106] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A 3D printing consumable wire drawing machine, comprising a base (1), a controller (2) arranged on one side of the base (1), wherein a winding mechanism (3), a wire arrangement mechanism (4) and a heating mechanism (5) are respectively arranged on the upper end of the base (1), wherein the heating mechanism (5) is located between the winding mechanism (3) and the wire arrangement mechanism (4), and characterized in that: A U-shaped mounting frame (6) is fixedly provided on the upper end of the base (1), and a cutting component for cutting the material released by the cable arrangement mechanism (4) is provided on the inner side of the U-shaped mounting frame (6); The controller (2) comprises a data analysis module and a determination execution module; the data analysis module is used to analyze and process the operation process of the 3D printing consumable wire drawing machine; the data analysis module comprises an equipment diagnosis unit, an environment analysis unit, an environment and equipment comprehensive processing unit, a wire drawing quality assessment unit and a wire drawing compensation analysis unit; The equipment diagnosis unit is used to diagnose and analyze the operating status of each mechanism of the 3D printing filament drawing machine during operation. The specific steps are as follows: Obtaining the operating status information of each mechanism of the 3D printing filament wire drawing machine during operation, setting a preset value of any parameter in the operating status information of the mechanism according to the mechanism, and subtracting the preset value corresponding to the parameter from the value of any parameter in the operating status information corresponding to the mechanism to obtain a preset parameter difference; The start-up time of the 3D printing filament wire drawing machine is taken as the first time, and the shutdown time is taken as the second time; If there is no shutdown time, the current time is marked as the second time; the time zone between the first time and the current time is marked as the device operation time zone; Analyze the preset parameter differences of the parameters in the operation status information of each mechanism in the equipment operation time zone, and obtain the time length of the equipment operation time zone and mark it as the set operation time length; Obtaining preset parameter differences of parameters in the operating status information of each mechanism in the equipment operating time zone, performing mean calculation on the preset parameter differences of parameters in the operating status information in the equipment operating time zone to obtain a preset parameter mean difference; Calculate the standard deviation of the preset parameter difference of the parameter in the running status information within the equipment running time zone to obtain the preset standard deviation fluctuation value; The difference between the maximum and minimum preset parameter values ​​in the operating status information of the equipment in the operating time zone is calculated to obtain the preset parameter extreme difference value; the parameter setting time, preset parameter difference, pre-parameter average difference, pre-parameter difference fluctuation value and pre-parameter extreme difference value are weighted to obtain the parameter influence value; Mark the design and operation time, the pre-parameter mean difference, the pre-parameter difference fluctuation value, the pre-parameter extreme difference value, and the pre-parameter influence value as the design and operation analysis results; The participating influence values ​​of all parameters in the operation status information corresponding to the mechanism are weighted to obtain the corresponding structural value of the mechanism; The structure estimation values ​​of all the mechanisms on the 3D printing filament drawing machine are weighted to obtain the machine estimation value; The various mechanisms include a winding mechanism (3), a wire arrangement mechanism (4) and a heating mechanism (5); The environmental analysis unit is used to analyze the environmental impact of the operation process of the 3D printing filament drawing machine, specifically: Obtain environmental information of each mechanism during the operation of the 3D printing filament drawing machine, including ambient temperature, humidity, dust concentration, and vibration; Set a normal value of any environmental parameter in the environmental information, and perform difference calculation between the numerical value of any environmental parameter in the environmental information and the normal value corresponding to the environmental parameter to obtain an environmental parameter difference value; The time area within the set environmental monitoring time length before the current moment is marked as the environmental monitoring time zone, and the mean and standard deviation of the ring parameter difference values ​​of all collection moments in the environmental monitoring time zone are calculated to obtain the ring parameter mean value and the ring parameter difference fluctuation value; the difference between the maximum and minimum ring parameter difference values ​​in the environmental monitoring time zone is calculated to obtain the ring parameter extreme difference value; the ring parameter difference value, the ring parameter mean value, the ring parameter difference fluctuation value, and the ring parameter extreme difference value are weighted to obtain the environmental parameter impact value corresponding to the environmental parameter; the environmental parameter impact values ​​of all environmental parameters in the environmental information of the organization are weighted to obtain the environmental comprehensive impact value; the ring parameter difference value, the ring parameter mean value, the ring parameter difference fluctuation value, the ring parameter extreme difference value, the environmental parameter impact value and the environmental comprehensive impact value of all environmental parameters in the environmental information corresponding to the organization are marked as environmental analysis results; The environment and equipment comprehensive processing unit comprehensively analyzes the environmental analysis results and operation analysis results corresponding to the mechanism, performs weighted calculation on the structural valuation of each mechanism in the 3D printing consumables wire drawing machine and its corresponding environmental comprehensive impact value to obtain the structural and environmental comprehensive valuation corresponding to the mechanism, performs weighted calculation on the structural and environmental comprehensive valuation of all mechanisms in the 3D printing consumables wire drawing machine to obtain the machine and environmental comprehensive evaluation value; marks the machine and environmental comprehensive evaluation value of the 3D printing consumables wire drawing machine and the structural and environmental comprehensive valuation of each mechanism as the operation analysis result; A wire drawing quality assessment unit is used to conduct quality assessment and analysis on the formed wire drawing during the operation of the 3D printing filament wire drawing machine to obtain a wire drawing assessment value; The wire drawing compensation analysis unit is used to perform weighted processing on the wire drawing evaluation value and the structural environment comprehensive estimation value corresponding to each mechanism in the operation analysis result to obtain the dynamic compensation coefficient corresponding to the mechanism; The determination execution module is used to receive the analysis results of each unit in the data analysis module, set the policy execution group according to the corresponding analysis result, match the analysis result with the policy execution group corresponding to the result, so as to generate and execute the execution policy corresponding to the analysis result; wherein, the set policy execution group includes a normal execution strategy, a slightly deviated execution strategy, and an abnormal execution strategy.

2. A 3D printing consumables wire drawing machine according to claim 1, characterized in that: The cutting assembly comprises a U-shaped sliding frame (13) slidably arranged on the inner side of the U-shaped mounting frame (6) and fixed blocks (12) symmetrically arranged on both sides of the inner top surface of the U-shaped mounting frame (6), the inner sides of the two fixed blocks (12) are rotatably provided with screw rods (8), the outer side of one of the fixed blocks (12) is provided with a motor (10) for driving the screw rod (8) to rotate, the upper end of the U-shaped sliding frame (13) is fixedly provided with a threaded seat (9) that is threadably matched with the screw rod (8), and the inner side of the U-shaped sliding frame (13) is symmetrically provided with two cutting pieces for cutting the material released by the wire arrangement mechanism (4) up and down.

3. A 3D printing consumables wire drawing machine according to claim 2, characterized in that: The cutting piece comprises a clamping plate (17) and a movable plate (18) slidably arranged on the inner side of a U-shaped sliding frame (13); a cutting knife (15) is fixedly arranged on one side of the movable plate (18); the clamping plate (17) is connected to the surface of the movable plate (18) via a compression spring (7); guide rods (16) are fixedly arranged on both sides of the movable plate (18); vertical guide grooves (14) for sliding the guide rods (16) are provided on both sides of the U-shaped sliding frame (13); and an oblique guide groove (11) for cooperating with the guide rod (16) and for driving the guide rod (16) to move relative to each other is provided on the inner side of the U-shaped mounting frame (6).

4. A 3D printing consumables wire drawing machine according to claim 1, characterized in that: The data analysis module also includes an early warning unit; the early warning unit is also used to perform early warning analysis on the operation analysis results in the historical records, specifically: Set the time monitoring range, and number the equipment operation time zones within the time monitoring range in chronological order; establish a diagnostic change line graph for any result in the operation analysis results, input the number of any result in the operation analysis results into the diagnostic change line graph according to the chronological order of the equipment operation time zones, and mark the position of the numerical value corresponding to the result in the line graph as a historical point; connect adjacent historical points to obtain a historical line; calculate the slope of the historical line; mark a slope with a positive value as a positive slope, and mark a slope with a negative value as a negative slope; sum up all positive slopes and negative slopes in the diagnostic change line graph to obtain a positive slope total value and a negative slope total value; perform weighted calculation on the positive slope total value and the negative slope total value to obtain a slope shadow value; Set the normal range of slope floating, match the slope of the historical line with the normal range of slope floating, and mark the slope that is not in the normal range of slope floating as an abnormal slope; count the number of abnormal slopes and mark them as abnormal floating numbers; obtain the operation analysis results of all equipment operation time zones within the set time monitoring range, calculate the average of any operation analysis results in all equipment operation time zones, and obtain the historical average corresponding to the result; Calculate the standard deviation of any operation analysis result in the equipment operation time zone within the set time monitoring range to obtain the historical fluctuation value; perform weighted processing on the oblique shadow value, abnormal floating number, historical mean, and historical fluctuation value corresponding to the result to obtain the historical diagnosis value corresponding to the result; mark the historical diagnosis value of any result in the operation analysis result as a warning analysis result.

5. A 3D printing consumables wire drawing machine according to claim 1, characterized in that: The quality assessment and analysis of the wire drawing during the operation of the 3D printing filament wire drawing machine is as follows: A captured image of a set area between a winding mechanism (3) and a heating mechanism (5) is obtained, and the formed wire drawing in the captured image is processed by edge recognition technology to obtain the outer contour of the formed wire drawing; a plane coordinate system is established, and the position of any point in the outer contour of the formed wire drawing is input into the plane coordinate system, and the outer contour line is formed by all points of the outer contour; a preset reference contour line is set for the outer contour line of the formed wire drawing in the plane coordinate system, and the shortest distance between any point on the outer contour line and the reference contour line is calculated to obtain a base distance value; the base distance values ​​of all points on the outer contour line are summed to obtain a contour difference value; captured images at multiple shooting angles are obtained, and the contour differences of the captured images at all shooting angles are weighted to obtain a wire profile value; a wire drawing monitoring time zone is set, and the mean and standard deviation of the wire profile values ​​in the wire drawing monitoring time zone are calculated to obtain a wire profile mean value and a wire profile fluctuation value; the wire profile value, the wire profile mean value, and the wire profile fluctuation value are weighted to obtain a wire drawing evaluation value.

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