Device and method for automatically adjusting and identifying wire printing

Abstract

The invention relates to a device and a method for automatically adjusting and identifying wire printing. The technical problems that an existing code spraying system depends on manual adjustment, the printing effect is unstable, and efficiency is low are solved. The device comprises a code spraying unit, a lettering detection unit and a control unit, the code spraying unit achieves dynamic adjustment of the position of a code spraying machine through a multi-axis adjusting mechanism, and the lettering detection unit detects lettering content in real time through an ink dot recognition sensor and an image movement collecting mechanism in the wire running process. And the detection data is transmitted to the control unit for analysis. According to the device, through mutual cooperation of the multiple units, the control unit automatically sends an adjusting instruction to an adjusting mechanism or a parameter module of the ink-jet printer according to the printing position and size deviation, closed-loop automatic adjustment of the printing position and size is achieved, and therefore the precision, consistency and automation level of wire printing are improved.

Description

Technical Field

[0001] This invention relates to the field of wire processing technology, and more specifically, to a device and method for automatic adjustment and recognition of printed characters on wire. Background Technology

[0003] In industrial production, wire products are widely used in various fields such as power, communications, automobiles, and electronics. To facilitate product identification, traceability, and management, it is usually necessary to print information such as product model, production batch number, and serial number on the surface of the wire. Currently, the printing process mainly relies on inkjet printers, which spray ink droplets onto the surface of the wire through a printhead to form recognizable characters or markings.

[0004] However, existing inkjet printing systems lack effective integration with production line equipment. During operation, the printhead position and printing parameters are typically adjusted manually by operators based on experience. In actual production, factors such as speed fluctuations, wire diameter changes, and surface tension differences during wire movement can easily lead to issues like positional misalignment, blurred characters, and uneven character spacing within the printed code. These problems not only affect printing quality but can also cause products to fail quality inspections, increasing rework rates and production costs.

[0005] To ensure printing quality, current production processes typically require operators to periodically inspect the coding effect and manually adjust the printhead position or coding parameters when deviations are detected. This method is not only inefficient but also relies heavily on human experience, introducing significant subjectivity and making it difficult to achieve stable and consistent printing results. Furthermore, because the coding machine itself lacks real-time feedback adjustment capabilities, it cannot automatically fine-tune based on the actual printing effect, resulting in significant fluctuations in product quality and failing to meet the requirements of high-end manufacturing for printing accuracy and consistency.

[0006] Therefore, there is an urgent need for a device and method that can automatically recognize printed content, detect position, and automatically adjust the inkjet printer to overcome the technical problems of unstable printing effect, manual adjustment, and low efficiency in the existing technology, and improve the automation level of the wire printing process and product quality. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a device and method for automatic adjustment and recognition of printed characters on wire, in view of the above-mentioned defects of the prior art.

[0008] On one hand, the technical solution adopted by the present invention to solve its technical problem is: a device for automatic adjustment and recognition of printed characters on wire, wherein the device for automatic adjustment and recognition of printed characters on wire is characterized in that it includes a coding unit, a printing detection unit, and a control unit; the coding unit includes a coding machine for printing characters on the surface of the wire, and a multi-axis adjustment mechanism for adjusting the position of the coding machine above the wire; the printing detection unit includes an ink dot recognition sensor for real-time detection of the printed characters on the surface of the wire during the wire's operation, and an image motion acquisition mechanism for moving and acquiring printed images and transmitting the printed images to the control unit; the ink dot recognition sensor and the image motion acquisition mechanism are sequentially arranged downstream of the coding unit; the control unit calculates the printing position deviation and printing size deviation on the wire based on the detection results of the ink dot recognition sensor and the analysis results of the printed images from the image motion acquisition mechanism; When the printing position deviation exceeds the set threshold, the control unit sends an adjustment command to the multi-axis adjustment mechanism of the inkjet printer to adjust the printing position of the inkjet printer, thereby correcting the printing position. When the printed character size deviation exceeds the set threshold, the control unit sends an adjustment command to the parameter adjustment module of the inkjet printer to adjust the inkjet parameters, thereby correcting the printed character size. After the newly printed text enters the image acquisition field of view, the control unit re-identifies and recalculates its position and size, forming a closed-loop adjustment.

[0009] The device of the present invention further includes a wire transmission unit for continuous movement of the traction wire; the wire transmission includes a wrapping mechanism located upstream of the inkjet unit and a take-up mechanism located downstream of the printing detection unit; the ink dot recognition sensor, the image motion acquisition mechanism, the multi-axis adjustment mechanism, the wrapping mechanism and the take-up mechanism are all electrically connected to and controlled by the control unit. The device of the present invention includes an image motion acquisition mechanism comprising a camera for acquiring printed characters on the surface of a wire, and a drive mechanism for controlling the camera to reciprocate along the length of the wire according to the production line speed signal.

[0010] In the device of the present invention, a plurality of wire positioning components are provided on the moving path of the wire; the wire positioning components include an upper rolling wheel and a lower rolling wheel; the upper rolling wheel and the lower rolling wheel are provided with positioning grooves for the wire to pass through in a straight line.

[0011] The device of the present invention includes a multi-axis adjustment mechanism comprising a mounting base for vertically placing the inkjet printer, a locking member for fixing the inkjet printer to the mounting base, a height adjustment module for moving the mounting base along the Z-axis above the wire, and a lateral adjustment module for moving the mounting base and the height adjustment module laterally closer to or further away from the wire.

[0012] The device of the present invention includes a moving mechanism comprising an annular slide rail, a slider fixedly connected to the camera and slidably connected to the annular slide rail, and a drive motor for controlling the slider to move along the annular slide rail; the drive motor receives a signal of the production line speed to drive the camera to move synchronously with the production line.

[0013] The device of the present invention, wherein the image acquisition method of the image motion acquisition mechanism is as follows: Mark the initial position A1 of the camera on the annular slide rail, input the production line speed S1 of the wire to the drive motor, and the drive motor outputs corresponding power according to the line speed S1 to drive the slider to move, so that the camera and the wire run synchronously. After detecting the ink dot entry signal, the ink dot recognition sensor calculates the time it takes for the printed pattern to completely enter the field of view of the camera, and sends a start signal to the drive motor after the printed pattern enters the specified field of view, driving the camera to move forward at a speed consistent with the linear velocity S1. The camera captures images of the printed pattern during its movement, which serve as the basis for calculating the content, position, and size of the printed text. After image acquisition is completed, the drive motor drives the camera to return to the initial position A1 along the route of the circular slide rail, so as to repeatedly execute the above image acquisition process.

[0014] In the device described in this invention, the ink dot recognition sensor is used to identify the ink dot time nodes T1 and T2 of two adjacent printed patterns, and calculates the printing interval L1 = (T2 - T1) × S1 in combination with the production line speed S1. When L1 exceeds the set range, the sensor transmits a command to the inkjet printing unit to adjust the inkjet printing interval parameter.

[0015] In the device of the present invention, the control unit extracts the boundary B1 and line width D1 of the wire, the boundary B2 of the printed text and the width D2 of the printed text from the printed text image; Determine the position and status of the printed characters: If the boundary of B2 is within B1, and 0.6D1 ≤ D2 ≤ 0.8D1, then it is normal printing; If B2 coincides with B1 on one side, then a lateral offset is determined, and a lateral adjustment distance C1 = 0.9D1 - D2 is generated for the multi-axis adjustment component to laterally adjust the inkjet printer; If B2 is within B1 and D2 ≥ 0.8D1, then the printed character is judged to be too large, and the vertical nozzle distance or inkjet parameter adjustment command is issued. If B2 is within B1 and D2 ≤ 0.6D1, then the printed characters are determined to be too small, and the print head distance or inkjet parameters are adjusted vertically.

[0016] In another invention, the present invention also provides a method for automatic adjustment and recognition of printed characters on wire, using the device for automatic adjustment and recognition of printed characters on wire as described above, wherein the method includes the following steps: S10: The ink dot recognition sensor detects the distribution of ink dots in the printed content in real time during the operation of the wire; S20: Acquires the printed image through the image motion acquisition mechanism and transmits it to the control unit; S30: The control unit analyzes the image and calculates the printing position and size deviation; Specifically, when the deviation of the printed character position exceeds the set threshold, the control unit sends an adjustment command to the printhead adjustment device to adjust the vertical position of the printhead; when the deviation of the printed character size exceeds the set threshold, the control unit sends an adjustment command to the parameter adjustment module to adjust the inkjet printing parameters. S40: After the newly printed text enters the image acquisition field of view, it is re-identified and its position and size are measured to form a closed-loop adjustment.

[0017] The beneficial effects of this invention are as follows: The device and method for automatic adjustment and recognition of printed characters on wire are ingeniously designed, including a coding unit, a printing detection unit, and a control unit. The coding unit dynamically adjusts the position of the coding machine through a multi-axis adjustment mechanism. The printing detection unit detects the printed content in real time during wire operation using an ink dot recognition sensor and an image motion acquisition mechanism, and transmits the detection data to the control unit for analysis. Based on the printed position and size deviation, the control unit automatically sends adjustment commands to the coding machine's adjustment mechanism or its parameter module, realizing online detection and automatic adjustment of the wire printing process. This overcomes the problems of low efficiency, strong subjectivity, and untimely adjustment associated with traditional manual adjustment methods. This device can identify the printed position and size deviation in real time, and detects the printed content on the wire surface in real time through the ink dot recognition sensor during wire operation. The image motion acquisition mechanism moves to acquire printed images and transmits them to the control unit for analysis, thereby controlling the coding unit to automatically correct the coding machine position or coding parameters. This significantly improves the stability and consistency of printing quality, reduces product defect rates and rework costs, and increases production efficiency. It is suitable for high-end manufacturing fields with high requirements for printing accuracy. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort: Figure 1 This is a schematic diagram of the device for automatic adjustment and recognition of wire printing according to Embodiment 1 of the present invention.

[0019] Figure 2 yes Figure 1 A schematic diagram of the structure of the inkjet printing unit 10.

[0020] Figure 3 yes Figure 1 The structural diagram of wire 01 in the diagram. Detailed Implementation

[0021] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0024] Furthermore, the terms indicating orientation, such as "up, down, front, back, left, right, upper end, lower end, longitudinal," etc., are all based on the posture and position of the device or equipment described in this solution during normal use.

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0026] A preferred embodiment of the present invention provides an automatic adjustment and recognition device for wire printing, such as... Figure 1-2 As shown, it includes a coding unit 10, a printing detection unit 20, and a control unit.

[0027] The coding unit 10 includes a coding machine 11 that prints characters on the surface of the wire 01, and a multi-axis adjustment mechanism 12 that drives the coding machine 11 to adjust its position above the wire 01. Through the cooperation of the coding machine and the multi-axis adjustment mechanism, the printhead can be precisely positioned in multiple degrees of freedom, thereby meeting the adjustment requirements of different wire specifications and printing positions, and flexibly responding to wire position offsets or size changes, thus improving the stability and consistency of the printing position.

[0028] The printing detection unit 20 includes an ink dot recognition sensor 21 for real-time detection of the printed content on the surface of the wire 01 during its operation, and an image acquisition mechanism 22 for moving and acquiring printed images and transmitting them to the control unit. Through the coordinated operation of the sensor and the image acquisition mechanism, dynamic monitoring of the printing process is achieved, ensuring real-time feedback on printing quality, thereby improving the accuracy and timeliness of printing quality detection and avoiding problems such as low efficiency and large errors caused by manual inspection. In this embodiment, the ink dot recognition sensor 21 and the image acquisition mechanism 22 are sequentially arranged downstream of the inkjet printing unit 10, which can ensure that the printed content immediately enters the detection process after inkjet printing is completed, realizing instant feedback and adjustment, thereby shortening the time delay between printing and detection, and improving the system response speed and adjustment efficiency. Based on the detection results of the ink dot recognition sensor 21 and the analysis results of the printed image from the image movement acquisition mechanism 22, the control unit calculates the positional deviation and size deviation of the printed characters on the wire 01. Through algorithmic analysis of image data, it automatically determines whether the printed characters are offset or have abnormal dimensions, thus providing a basis for subsequent adjustments. This achieves intelligent analysis and judgment of printing quality, improving automation and adjustment accuracy. Specifically: When the printing position deviation exceeds the set threshold, the control unit sends an adjustment command to the multi-axis adjustment mechanism 12 of the inkjet printer 11 to adjust the printing position of the inkjet printer 11, thereby correcting the printing position. When the deviation of the printed character size exceeds the set threshold, the control unit sends an adjustment command to the parameter adjustment module of the inkjet printer 11 to adjust the inkjet parameters, thereby correcting the printed character size. After the newly printed text enters the image acquisition field of view, the control unit re-identifies and recalculates its position and size, forming a closed-loop adjustment.

[0029] Automatic correction of the printed position is achieved through position adjustment, ensuring that the printed content falls accurately in the designated area. The size of the printed characters is controlled by adjusting the inkjet parameters (such as ink dot size and spray frequency). This meets diverse production needs, ensures that the system maintains the best printing state during dynamic operation, and improves overall production efficiency and product qualification rate.

[0030] This ingeniously designed device and method for automatic adjustment and recognition of printed characters on wire includes a coding unit, a character detection unit, and a control unit. The coding unit dynamically adjusts the position of the coding machine through a multi-axis adjustment mechanism. The character detection unit uses an ink dot recognition sensor and an image motion acquisition mechanism to detect the printed characters in real time during wire movement and transmits the data to the control unit for analysis. Based on the printed character position and size deviation, the control unit automatically sends adjustment commands to the coding machine's adjustment mechanism or its parameter module, achieving online detection and automatic adjustment of the wire printing process. This overcomes the problems of low efficiency, strong subjectivity, and untimely adjustment associated with traditional manual adjustment methods. This device can identify the printed character position and size deviation in real time. The ink dot recognition sensor detects the printed characters on the wire surface in real time during wire movement, and the image motion acquisition mechanism captures printed images and transmits them to the control unit for analysis. This analysis then controls the coding unit to automatically correct the coding machine position or coding parameters, significantly improving the stability and consistency of printing quality, reducing product defect rates and rework costs, and increasing production efficiency. It is suitable for high-end manufacturing fields with high requirements for printing accuracy.

[0031] Furthermore, to achieve full automation of the entire process from wire preparation to printing, inspection, and take-up, this device also includes a wire transport unit for continuously moving the wire 01; the wire 01 transport includes a wrapping mechanism 30 located upstream of the inkjet printing unit 10 and a take-up mechanism 40 located downstream of the printing inspection unit 20; the ink dot recognition sensor 21, the image motion acquisition mechanism 22, the multi-axis adjustment mechanism 12, the wrapping mechanism 30, and the take-up mechanism 40 are all electrically connected to and controlled by the control unit. It is worth noting that the wrapping mechanism 30 and the take-up mechanism 40 are conventional technologies in this field, and their working principles and specific structures will not be described in detail.

[0032] Furthermore, the image motion acquisition mechanism 22 includes a camera 221 for acquiring the printed characters on the surface of the wire 01, and a drive mechanism for controlling the camera 221 to reciprocate along the length direction of the wire 01 according to the production line speed signal; the camera moves synchronously with the wire to achieve stable image acquisition of the dynamic printing process, which can effectively improve the clarity and accuracy of image acquisition and provide high-quality image data for subsequent analysis.

[0033] Specifically, in this embodiment, the moving mechanism includes an annular slide rail 222, a slider (not shown) fixedly connected to the camera 221 and slidably connected to the annular slide rail, and a drive motor 223 that controls the slider (not shown) to move along the annular slide rail; the drive motor 223 receives the signal of the production line speed to drive the camera 221 to move synchronously with the wire 01, and realizes the synchronous movement of the camera and the wire through closed-loop control to ensure that the image acquisition process is stable and without jitter.

[0034] The image acquisition method of the image motion acquisition mechanism 22 is as follows: The camera 221 is positioned at the initial position A1 on the annular slide rail. The production line speed S1 of the wire 01 is input to the drive motor 223. The drive motor 223 outputs corresponding power according to the production line speed S1 to drive the slider (not shown in the figure) to move, so that the camera 221 and the wire 01 run synchronously. This ensures that the camera and the wire are synchronized, realizes dynamic image acquisition, improves the stability and continuity of image acquisition, and avoids image blurring or omission.

[0035] After detecting the ink dot entry signal, the ink dot recognition sensor 21 calculates the time it takes for the printed pattern to completely enter the field of view of the camera 221, and sends a start signal to the drive motor 223 after the printed pattern enters the specified field of view, driving the camera 221 to move forward at a speed consistent with the linear speed S1; through precise time calculation and start control, the timing of image acquisition is ensured to be accurate, thereby improving the efficiency and accuracy of image acquisition and reducing the generation of invalid images.

[0036] The camera 221 captures images of the printed pattern during its movement, which serve as the basis for calculating the content, position, and size of the printed text, and obtains high-quality image data for subsequent analysis. After image acquisition is completed, drive motor 223 drives camera 221 to return to the initial position A1 along the route of the circular slide rail, so as to repeatedly execute the above image acquisition process, realize the cyclic operation of the image acquisition process, and improve the automation level of the system.

[0037] To ensure that the wire remains stable and runs in a straight line during transmission, and to avoid printing position deviations due to shaking or offset, multiple wire positioning components 50 are provided on the moving path of the wire 01. The wire positioning component 50 includes an upper roller 51 and a lower roller 52. The upper roller 51 and the lower roller 52 are provided with positioning grooves 53 for the wire 01 to pass through in a straight line. This structure improves the stability of the wire during the printing process and reduces printing errors caused by wire deviation.

[0038] Furthermore, the multi-axis adjustment mechanism 12 includes a mounting base 121 for vertically placing the inkjet printer 11, a locking member 122 for fixing the inkjet printer 11 to the mounting base 121, a height adjustment module 123 for moving the mounting base 121 above the wire 01 along the Z-axis, and a lateral adjustment module 124 for moving the mounting base 121 and the height adjustment module 123 laterally closer to or further away from the wire 01. This can meet the needs of different wire diameters and printing positions, improving the adaptability and adjustment accuracy of the equipment. In this embodiment, both the height adjustment module 123 and the lateral adjustment module 124 can be linear screw drive modules or screw transmission adjustment components in the prior art, which will not be described in detail here.

[0039] Furthermore, such as Figure 3 As shown, the ink dot recognition sensor 21 is used to identify the ink dot time nodes T1 and T2 of two adjacent printed patterns. Combined with the production line speed S1, it calculates the printing interval L1 = (T2 - T1) × S1. When L1 exceeds the set range, it transmits a command to the inkjet printer 11 to adjust the inkjet interval parameter. By calculating the printing interval through the time difference and the line speed, the automatic control of the printing spacing is realized, thereby ensuring that the spacing of the printed patterns is consistent and avoiding product defects caused by spacing deviation.

[0040] Furthermore, such as Figure 3 As shown, the control unit extracts the boundary B1 and line width D1 of wire 01, and the boundary B2 and line width D2 of printed characters from the printed image; Determine the position and status of the printed characters: If the boundary of B2 is within B1, and 0.6D1 ≤ D2 ≤ 0.8D1, then it is normal printing; If B2 coincides with B1 on one side, then a lateral offset is determined, and a lateral adjustment distance C1 = 0.9D1 - D2 is generated for the multi-axis adjustment component to adjust the inkjet printer 11 laterally; If B2 is within B1 and D2 ≥ 0.8D1, then the printed character is judged to be too large, and the vertical nozzle distance or inkjet parameter adjustment command is issued. If B2 is within B1 and D2 ≤ 0.6D1, then the printed characters are determined to be too small, and the print head distance or inkjet parameters are adjusted vertically.

[0041] By classifying and judging the printing status through the above image analysis algorithm and generating corresponding adjustment instructions, the automatic judgment and adjustment of printing quality is realized, thereby improving the system's intelligence level and printing consistency.

[0042] Example 2: The present invention also provides a method for automatic adjustment and recognition of printed characters on wires, using the device for automatic adjustment and recognition of printed characters on wires as described in Embodiment 1, wherein the method includes the following steps: S10: The ink dot recognition sensor detects the distribution of ink dots in the printed text in real time during the operation of the wire; it can monitor the distribution of ink dots in real time, determine whether the printed text is complete or missing, provide data support for subsequent image acquisition and analysis, and improve the system response speed.

[0043] S20: The printed image is acquired by the image moving acquisition mechanism and transmitted to the control unit; by acquiring high-quality images, the position and size of the printed characters in the image can be analyzed, thereby improving the accuracy and reliability of the image data and ensuring the correctness of the adjustment commands.

[0044] S30: The control unit analyzes the image and calculates the printing position and size deviation; Specifically, when the deviation of the printed character position exceeds the set threshold, the control unit sends an adjustment command to the printhead adjustment device to adjust the vertical position of the printhead; when the deviation of the printed character size exceeds the set threshold, the control unit sends an adjustment command to the parameter adjustment module to adjust the inkjet printing parameters. The image processing algorithm described in Example 1 is used to determine whether the printed characters are offset or have abnormal size, providing a basis for subsequent adjustments and improving adjustment accuracy.

[0045] S40: After the new printed text enters the image acquisition field of view, it is re-identified and its position and size are measured, forming a closed-loop adjustment. Through continuous feedback and adjustment, closed-loop control of printing quality is achieved, ensuring that the system always maintains the best printing state during dynamic operation, thereby improving overall production efficiency and product qualification rate.

[0046] This ingeniously designed device and method for automatic adjustment and recognition of printed characters on wire includes a coding unit, a character detection unit, and a control unit. The coding unit dynamically adjusts the position of the coding machine through a multi-axis adjustment mechanism. The character detection unit uses an ink dot recognition sensor and an image motion acquisition mechanism to detect the printed characters in real time during wire movement and transmits the data to the control unit for analysis. Based on the printed character position and size deviation, the control unit automatically sends adjustment commands to the coding machine's adjustment mechanism or its parameter module, achieving online detection and automatic adjustment of the wire printing process. This overcomes the problems of low efficiency, strong subjectivity, and untimely adjustment associated with traditional manual adjustment methods. This device can identify the printed character position and size deviation in real time. The ink dot recognition sensor detects the printed characters on the wire surface in real time during wire movement, and the image motion acquisition mechanism captures printed images and transmits them to the control unit for analysis. This analysis then controls the coding unit to automatically correct the coding machine position or coding parameters, significantly improving the stability and consistency of printing quality, reducing product defect rates and rework costs, and increasing production efficiency. It is suitable for high-end manufacturing fields with high requirements for printing accuracy.

[0047] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A device for automatic adjustment and recognition of printed characters on wire, characterized in that, A device for automatic adjustment and recognition of printed text on wires, characterized in that it includes a coding unit, a text detection unit, and a control unit; the coding unit includes a coding machine for printing text on the surface of the wire, and a multi-axis adjustment mechanism for adjusting the position of the coding machine above the wire; the text detection unit includes an ink dot recognition sensor for real-time detection of the printed text on the surface of the wire during wire operation, and an image motion acquisition mechanism for moving and acquiring printed text images and transmitting the printed text images to the control unit; the ink dot recognition sensor and the image motion acquisition mechanism are sequentially arranged downstream of the coding unit; the control unit calculates the text position deviation and text size deviation on the wire based on the detection results of the ink dot recognition sensor and the analysis results of the printed text images from the image motion acquisition mechanism; When the printing position deviation exceeds the set threshold, the control unit sends an adjustment command to the multi-axis adjustment mechanism of the inkjet printer to adjust the printing position of the inkjet printer, thereby correcting the printing position. When the printed character size deviation exceeds the set threshold, the control unit sends an adjustment command to the parameter adjustment module of the inkjet printer to adjust the inkjet parameters, thereby correcting the printed character size. After the newly printed text enters the image acquisition field of view, the control unit re-identifies and recalculates its position and size, forming a closed-loop adjustment.

2. The apparatus according to claim 1, characterized in that, The device further includes a wire transmission unit for continuous movement of the traction wire; the wire transmission includes a wrapping mechanism located upstream of the inkjet unit and a take-up mechanism located downstream of the printing detection unit; the ink dot recognition sensor, the motion drive mechanism, the camera, the multi-axis adjustment mechanism, the wrapping mechanism and the take-up mechanism are all electrically connected to and controlled by the control unit.

3. The apparatus according to claim 2, characterized in that, The image acquisition mechanism includes a camera for capturing printed text on the surface of the wire, and a drive mechanism for controlling the camera to reciprocate along the length of the wire based on the production line speed signal.

4. The apparatus according to any one of claims 1-3, characterized in that, The moving path of the wire is also provided with multiple wire positioning components; the wire positioning components include an upper rolling wheel and a lower rolling wheel; the upper rolling wheel and the lower rolling wheel are provided with positioning grooves for the wire to pass through in a straight line.

5. The apparatus according to claim 1, characterized in that, The multi-axis adjustment mechanism includes a mounting base for vertically placing the inkjet printer, a locking component for fixing the inkjet printer to the mounting base, a height adjustment module for moving the mounting base along the Z-axis above the wire, and a lateral adjustment module for moving the mounting base and the height adjustment module laterally closer to or further away from the wire.

6. The apparatus according to claim 3, characterized in that, The moving mechanism includes an annular slide rail, a slider fixedly connected to the camera and slidably connected to the annular slide rail, and a drive motor for controlling the slider to move along the annular slide rail; the drive motor receives a signal of the production line speed to drive the camera to move synchronously with the production line.

7. The apparatus according to claim 6, characterized in that, The image acquisition method of the image motion acquisition mechanism is as follows: Mark the initial position A1 of the camera on the annular slide rail, input the production line speed S1 of the wire to the drive motor, and the drive motor outputs corresponding power according to the line speed S1 to drive the slider to move, so that the camera and the wire run synchronously. After detecting the ink dot entry signal, the ink dot recognition sensor calculates the time it takes for the printed pattern to completely enter the field of view of the camera, and sends a start signal to the drive motor after the printed pattern enters the specified field of view, driving the camera to move forward at a speed consistent with the linear velocity S1. The camera captures images of the printed pattern during its movement, which serve as the basis for calculating the content, position, and size of the printed text. After image acquisition is completed, the drive motor drives the camera to return to the initial position A1 along the route of the circular slide rail, so as to repeatedly execute the above image acquisition process.

8. The apparatus according to claim 1, characterized in that, The ink dot recognition sensor is used to identify the ink dot time nodes T1 and T2 of two adjacent printed patterns. Combined with the production line speed S1, it calculates the printing interval L1 = (T2 - T1) × S1, and transmits a command to the inkjet unit to adjust the inkjet interval parameter when L1 exceeds the set range.

9. The apparatus according to claim 1, characterized in that, The control unit extracts the wire boundary B1 and line width D1, and the printed boundary B2 and printed width D2 from the printed image; Determine the position and status of the printed characters: If the boundary of B2 is within B1, and 0.6D1 ≤ D2 ≤ 0.8D1, then it is normal printing; If B2 coincides with B1 on one side, then a lateral offset is determined, and a lateral adjustment distance C1 = 0.9D1 - D2 is generated for the multi-axis adjustment component to laterally adjust the inkjet printer; If B2 is within B1 and D2 ≥ 0.8D1, then the printed character is judged to be too large, and the vertical nozzle distance or inkjet parameter adjustment command is issued. If B2 is within B1 and D2 ≤ 0.6D1, then the printed characters are determined to be too small, and the print head distance or inkjet parameters are adjusted vertically.

10. A method for automatic adjustment and recognition of printed characters on wire, using the device for automatic adjustment and recognition of printed characters on wire as described in any one of claims 1-9, characterized in that, Includes the following steps: S10: The ink dot recognition sensor detects the distribution of ink dots in the printed content in real time during the operation of the wire; S20: Acquires the printed image through the image motion acquisition mechanism and transmits it to the control unit; S30: The control unit analyzes the image and calculates the printing position and size deviation; Specifically, when the deviation of the printed character position exceeds the set threshold, the control unit sends an adjustment command to the printhead adjustment device to adjust the vertical position of the printhead; when the deviation of the printed character size exceeds the set threshold, the control unit sends an adjustment command to the parameter adjustment module to adjust the inkjet printing parameters. S40: After the newly printed text enters the image acquisition field of view, it is re-identified and its position and size are measured to form a closed-loop adjustment.

Images