Steel plate code spraying method and system

Abstract

The invention discloses a steel plate code spraying method and system. The method comprises the following steps: acquiring steel plate code spraying information of a target steel plate; controlling an edge searching detection unit to scan the target steel plate to obtain position information of the target steel plate; according to the target steel plate position information, the steel plate code spraying information and the combined code spraying width of the multiple code spraying heads, the whole canvas of the steel plate code spraying system is segmented, and at least one code spraying segmentation canvas is obtained; controlling a plurality of code spraying heads to spray codes on the target steel plate according to the code spraying segmentation canvas; on the basis, the whole canvas is divided according to the position information of the target steel plate and the code spraying information of the steel plate, so that the whole canvas is always divided no matter how many parts on the target steel plate are arranged and how the code spraying content complexity is, and therefore, when code spraying is performed on the target steel plate, the code spraying efficiency is improved. And the upper limit of the rhythm of the steel plate code spraying system is not exceeded all the time, so that the rhythm of the steel plate code spraying link on the whole intelligent cutting production line is balanced.

Description

Technical Field

[0001] The present invention belongs to the field of machining, and particularly relates to a method and a system for steel plate inkjet coding. Background Art

[0002] In the intelligent cutting and blanking production line of steel plates, it is necessary to perform inkjet coding and printing on each part according to the part nesting drawing before cutting, which is convenient for manual or automatic identification in subsequent processes and is more conducive to the traceability management of steel plate parts; in the shipbuilding industry, it is also necessary to pre-draw lines on the steel plates so as to guide the splicing and welding of parts according to the marked positions in subsequent processes.

[0003] At present, the more commonly used method for inkjet coding and printing on steel plates is as follows: a gantry truss is used to carry a single inkjet head, and according to the inkjet coding position coordinates of the parts in the nesting drawing, it moves to the target position and then performs inkjet coding according to the content. After the inkjet coding of a single part is completed, it then runs to the position of the next part for inkjet coding until the inkjet coding of all parts on the entire steel plate is completed. Although the above inkjet coding method can also achieve the inkjet coding effect, its beat is calculated according to a single part, and the number of parts on the steel plate is uncertain. Therefore, the time required to complete the inkjet coding of the entire steel plate is also uncertain. When the number of parts is large, the excessive inkjet coding time will affect the work of subsequent stations, resulting in the limitation of the beat of the entire production line and affecting the production capacity. In addition, the current inkjet coding and line marking functions are respectively completed by independent devices, which not only increases the equipment cost, occupies more space, but also wastes the working beat of the production line.

[0004] In this regard, the prior art can adopt the method of setting multiple inkjet heads to simultaneously complete the inkjet coding work to improve the inkjet coding efficiency and the working beat. For example, in the patent with the publication number CN116922967B, a management method, device, equipment and medium for steel plate inkjet coding and cutting are disclosed. The method includes: obtaining the steel plate drawing information at the first placement position, and controlling the first inkjet printer to perform inkjet coding on the steel plate at the first placement position according to the steel plate drawing information; and obtaining the steel plate drawing information at the second placement position, and controlling the second inkjet printer to perform inkjet coding on the steel plate at the second placement position according to the steel plate drawing information; determining the cutting sequence according to the inkjet coding completion times of the first inkjet printer and the second inkjet printer, so as to control the cutting machine to cut the steel plate according to the cutting sequence. The above patent uses an inkjet printer to quickly and accurately mark the steel plate. By determining the sequence of cutting, the work arrangement of the cutting machine can be optimized, the waiting time and the idle time of the cutting machine can be reduced, and the inkjet coding and cutting efficiency can be improved.

[0005] Although this method sets multiple inkjet heads to improve the inkjet coding efficiency, when performing inkjet coding on parts with different quantities on steel plates of the same size, there will still be a problem of inconsistent inkjet coding beats using this method. Therefore, there will still be a situation where the excessive inkjet coding time will affect the work of subsequent stations, resulting in the limitation of the beat of the entire production line and affecting the production capacity. Summary of the Invention

[0006] An embodiment of the present invention provides a steel plate inkjet coding method and system, which improves the production stability of the steel plate inkjet coding system.

[0007] According to the first aspect of the present invention, an embodiment of the present invention provides a steel plate inkjet coding method. The steel plate inkjet coding method is applied to a steel plate inkjet coding system, and the steel plate inkjet coding system includes: an edge detection unit and an inkjet device. The inkjet device includes a plurality of inkjet heads. The steel plate inkjet coding method includes:

[0008] Obtain the steel plate inkjet coding information of the target steel plate;

[0009] Control the edge detection unit to scan the target steel plate to obtain the target steel plate position information;

[0010] According to the target steel plate position information, the steel plate inkjet coding information, and the combined inkjet width of the plurality of inkjet heads, divide the overall inkjet canvas of the steel plate inkjet coding system to obtain at least one inkjet divided canvas;

[0011] Control the plurality of inkjet heads to inkjet the target steel plate according to the inkjet divided canvas.

[0012] Optionally, before obtaining the steel plate inkjet coding information of the target steel plate, the method further includes:

[0013] Obtain the maximum operating rate of the inkjet device, the maximum format specification of each inkjet head, the maximum inkjet beat of the steel plate inkjet coding system, and the maximum inkjet steel plate information;

[0014] Determine the maximum operating duration of the inkjet device according to the quotient of the maximum inkjet steel plate information and the maximum operating rate;

[0015] Calculate the number of inkjet heads in the inkjet device according to the maximum operating duration, the maximum inkjet steel plate information, the maximum format specification, and the maximum inkjet beat.

[0016] Optionally, the maximum inkjet steel plate information includes: the maximum length of the steel plate;

[0017] Determining the maximum operating duration of the inkjet device according to the quotient of the maximum inkjet steel plate information and the maximum operating rate includes:

[0018] Determine the maximum operating duration according to the following formula:

[0019] T1 = (X1 + ΔX) ÷ V1

[0020] T1 is the maximum operating duration, X1 is the maximum length of the steel plate, ΔX is the length adjustment amount of the target steel plate in the length direction, the length adjustment amount is less than the maximum length direction offset value of the target steel plate in the steel plate inkjet coding system, and V1 is the maximum operating rate.

[0021] Optionally, the maximum inkjet steel plate information includes: the maximum width of the steel plate;

[0022] Based on the maximum running duration, the maximum inkjet steel plate information, the maximum format specification, and the maximum inkjet beat, the number of inkjet heads in the inkjet device is calculated, including:

[0023] The number of inkjet heads is calculated according to the following formula:

[0024] N = (Y1 + ΔY) ÷ (L × T2 ÷ T1)

[0025] N is the number of inkjet heads, Y1 is the maximum width of the steel plate, ΔY is the width adjustment amount of the target steel plate in the width direction, the width adjustment amount is less than the allowable value of the offset in the width direction of the target steel plate placement, L is the maximum format specification, T2 is the maximum inkjet beat, and T1 is the maximum running duration.

[0026] Optionally, according to the target steel plate position information, the steel plate inkjet information, and the combined inkjet width of multiple inkjet heads, the overall inkjet canvas of the steel plate inkjet system is segmented to obtain at least one inkjet segmented canvas, including:

[0027] The steel plate inkjet information is converted into an image to generate an initial inkjet canvas;

[0028] According to the target steel plate position information, the initial inkjet canvas is calibrated to obtain the overall inkjet canvas;

[0029] According to the combined inkjet width of multiple inkjet heads, the overall inkjet canvas is segmented to obtain at least one inkjet segmented canvas.

[0030] Optionally, according to the combined inkjet width of multiple inkjet heads, the overall inkjet canvas is segmented to obtain at least one inkjet segmented canvas, including:

[0031] Obtain the overall canvas width of the overall inkjet canvas;

[0032] Based on the combined inkjet width as the standard, according to the overall canvas width, the overall inkjet canvas is segmented according to the combined inkjet width of multiple inkjet heads to obtain at least one inkjet segmented canvas.

[0033] Optionally, according to the inkjet segmented canvas, multiple inkjet heads are controlled to inkjet the target steel plate, including:

[0034] Control the inkjet device to inkjet the target steel plate in sequence according to the inkjet segmented canvas;

[0035] In the case where there is a target inkjet segmentation canvas on the inkjet segmentation canvas with a canvas segmentation width smaller than the first inkjet width of the inkjet device, control some of the inkjet heads in the inkjet device to perform inkjet on the target steel plate according to the target inkjet segmentation canvas, where the canvas segmentation width is the width of the inkjet segmentation canvas.

[0036] According to a second aspect of the present invention, there is provided a steel plate inkjet system, which may include:

[0037] A central control device for obtaining the steel plate inkjet information of the target steel plate;

[0038] An inkjet device, the inkjet device includes an edge detection unit and a plurality of inkjet heads. The central control device is connected to the edge detection unit and is used to control the edge detection unit to scan the target steel plate to obtain the target steel plate position information; the central control device is respectively connected to each inkjet head, and the central control device is used to divide the overall canvas of the steel plate inkjet system according to the target steel plate position information, the steel plate inkjet information, and the combined inkjet width of the plurality of inkjet heads to obtain at least one inkjet segmentation canvas, and control the plurality of inkjet heads to perform inkjet on the target steel plate according to the inkjet segmentation canvas.

[0039] Optionally, the steel plate inkjet system further includes:

[0040] A gantry, and the inkjet device is installed on the gantry;

[0041] A driving device, the driving device is connected to the inkjet device, and the central control device is communicatively connected to the driving device. The central control device is used to control the driving device to drive the inkjet device to move on the gantry.

[0042] Optionally, the inkjet device further includes:

[0043] A housing cover, the edge detection unit is installed on the side of the housing cover, and a plurality of inkjet heads are embedded in the housing cover;

[0044] A curing member, the curing member is installed on the side of the housing cover, and the distance between the bottom of the curing member and the target steel plate is greater than the distance between the bottom of the inkjet head and the target steel plate.

[0045] The technical solutions provided by the embodiments of the present invention at least bring the following beneficial effects:

[0046] An embodiment of the present invention provides a steel plate inkjet coding method and system. After obtaining the steel plate inkjet coding information required for the target steel plate, the edge detection unit is controlled to scan the target steel plate to determine the target steel plate position information of the target steel plate in the steel plate inkjet coding system. Thus, the overall canvas in the steel plate inkjet coding system can be divided according to the target steel plate position information and the steel plate inkjet coding information of the target steel plate, obtaining at least one inkjet segmentation canvas, and then the inkjet head can be controlled to inkjet the target steel plate according to the inkjet segmentation canvas. Based on this, by dividing the overall canvas according to the target steel plate position information and the steel plate inkjet coding information, no matter how many parts are on the target steel plate and how complex the inkjet content is, the overall canvas is always divided. Furthermore, when inkjetting the target steel plate, it always remains within the beat limit of the steel plate inkjet coding system, making the beat of the steel plate inkjet coding link reach equilibrium in the entire intelligent cutting production line, and at the same time making the inkjet cost performance of the steel plate inkjet coding system optimal.

[0047] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present invention, and are used together with the specification to explain the principles of the present invention and do not constitute an improper limitation to the present invention.

[0049] Figure 1 is a flowchart of a steel plate inkjet coding method shown according to an exemplary embodiment;

[0050] Figure 2 is a schematic diagram of the relationship between a target steel plate and an inkjet overall canvas shown according to an exemplary embodiment;

[0051] Figure 3 is a schematic diagram of the structure of a steel plate inkjet coding system shown according to an exemplary embodiment;

[0052] Figure 4 is a schematic diagram of the structure of an inkjet device of a steel plate inkjet coding system shown according to an exemplary embodiment;

[0053] Figure 5 is another schematic diagram of the structure of an inkjet device of a steel plate inkjet coding system shown according to an exemplary embodiment.

[0054] ILLUSTRATION OF THE DRAWINGS

[0055]

[0056] DETAILED DESCRIPTION OF THE EMBODIMENTS

[0057] In order to more clearly understand the above-mentioned objects, features, and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments may be combined with each other.

[0058] In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all the embodiments.

[0059] As described in the background art, the existing open-set cross-domain fault diagnosis method does not include the process of learning the unique feature distributions of known and unknown classes. Therefore, it is difficult to capture the subtle differences in the high-level feature distributions between known and unknown classes, which increases the roughness and instability of the separation process.

[0060] Based on this, the present invention provides a steel plate inkjet coding method and system. First, the steel plate inkjet coding method provided by the embodiments of the present invention will be introduced below.

[0061] As Figure 1 shown;

[0062] Embodiment 1;

[0063] The steel plate inkjet coding method is applied to a steel plate inkjet coding system. The steel plate inkjet coding system includes: an edge detection unit and an inkjet device. The inkjet device includes a plurality of inkjet heads. The steel plate inkjet coding method includes:

[0064] S101, obtaining the steel plate inkjet coding information of the target steel plate;

[0065] S102, controlling the edge detection unit to scan the target steel plate to obtain the target steel plate position information;

[0066] S103, dividing the overall inkjet canvas of the steel plate inkjet coding system according to the target steel plate position information, the steel plate inkjet coding information, and the combined inkjet width of the plurality of inkjet heads to obtain at least one inkjet divided canvas;

[0067] S104, controlling the plurality of inkjet heads to inkjet the target steel plate according to the inkjet divided canvas.

[0068] Based on the above example, after obtaining the steel plate coding information that needs to be coded on the target steel plate, the edge detection unit is controlled to scan the target steel plate to determine the target steel plate position information of the target steel plate in the steel plate coding system. Thus, the overall canvas in the steel plate coding system can be divided according to the target steel plate position information and the steel plate coding information of the target steel plate, obtaining at least one coded segmentation canvas, and then the coding head can be controlled to code the target steel plate according to the coded segmentation canvas. Based on this, by dividing the overall canvas according to the target steel plate position information and the steel plate coding information, no matter how many parts are on the target steel plate and how complex the coding content is, the overall canvas is always divided. Furthermore, when coding the target steel plate, it always remains within the beat limit of the steel plate coding system, making the beat of the steel plate coding link balanced in the entire intelligent cutting production line, and at the same time making the coding cost performance of the steel plate coding system optimal.

[0069] In the above S101, the steel plate coding system can obtain the steel plate coding information input by the upper-level system. Among them, the steel plate coding information can be presented in various formats such as text, numbers, two-dimensional codes, barcodes, etc. Specifically, the content of the coding information can be dynamically defined by the production task, and it can include part name, batch number, number, process route, coding pattern, coding position, etc.

[0070] In the above S102, a set of initial coordinate systems can be set inside the edge detection unit. By controlling the edge detection unit to run above the target steel plate and using the edge detection unit to scan each endpoint of the target steel plate, the coordinate position of the target steel plate in the steel plate coding system can be obtained. Among them, the target steel plate position information can include the position coordinates of each endpoint of the target steel plate, information such as the deflection angle of the target steel plate in the initial coordinate system, etc.

[0071] In the above S103, the overall coding canvas refers to the digital printing blueprint of the steel plate coding system. By combining the target steel plate position information and the steel plate coding information that needs to be coded on the target steel plate, integrating content, calibrating coordinates, and dividing into blocks for planning, at least one coded segmentation canvas is obtained, thereby transforming the much more complex part coding task into a stable beat-based operation.

[0072] Specifically, in one example, the above S103 may further include:

[0073] S1031, perform image conversion on the steel plate coding information to generate an initial coding canvas;

[0074] S1032, perform image calibration on the initial coding canvas according to the target steel plate position information to obtain the overall coding canvas;

[0075] S1033. Divide the overall inkjet canvas according to the combined inkjet width of multiple inkjet heads to obtain at least one inkjet-divided canvas.

[0076] In the above example, by performing image conversion on the steel plate inkjet information, an initial inkjet canvas regarding the inkjet pattern on the target steel plate is obtained. Then, combined with the target steel plate position information, image calibration is performed on the initial inkjet canvas to obtain an overall inkjet canvas determined based on the initial coordinate system of the steel plate inkjet system. Furthermore, divide the overall canvas according to the multi-inkjet head width, and under the premise of ensuring the rhythm of the steel plate inkjet system, the inkjet-divided canvas is obtained, thereby ensuring that the divided canvas image can be applied to both the inkjet of steel plate parts and the scribing of the welding position of steel plate parts.

[0077] In the above S1031, according to the information such as the inkjet pattern and inkjet position in the steel plate inkjet information, unified planning and reasonable arrangement are carried out to generate a layout blueprint, that is, the initial inkjet canvas. The coordinate system of this initial inkjet canvas is set with a certain point coordinate in the target steel plate as the origin.

[0078] In the above S1032, after determining the target steel plate position information, the coordinate position of the target steel plate in the initial coordinate system of the steel plate inkjet system can be obtained, and the positions of each pattern in the initial inkjet canvas are determined according to the coordinate system of the target steel plate. Therefore, it is necessary to calibrate and convert the coordinate positions of each pattern in the initial inkjet canvas to unify the coordinate system, so that the pattern and other information in the initial inkjet canvas are applicable to the initial coordinate system in the steel plate inkjet system, and then the overall inkjet canvas applicable to the steel plate inkjet system is obtained.

[0079] Specifically, as Figure 2 shown, Figure 2 the coordinate system in is the initial coordinate system in the steel plate inkjet system, and the range shown by the solid line frame in the figure is the target steel plate. Based on the figure, it can be seen that the length and width directions of the target steel plate are not parallel to the X-axis and Y-axis in the initial coordinate system, that is, the coordinate system of the target steel plate (initial inkjet canvas) and the initial coordinate system are not unified. Therefore, it is necessary to calibrate and convert the initial inkjet canvas to be unified into the initial coordinate system, thereby obtaining an overall inkjet canvas determined based on the initial coordinate system, that is, Figure 2 the range shown by the dashed line frame in.

[0080] In the above S1033, since there are multiple inkjet heads in the inkjet device, each inkjet head has a certain inkjet width, and the inkjet device can also have a certain inkjet width. And the inkjet device includes multiple inkjet heads, so the inkjet width of the inkjet device is the combined inkjet width of multiple inkjet heads.

[0081] The overall width of the target steel plate is greater than the coding width of the coding device. To facilitate the coding device to perform coding according to the overall coding canvas, it is necessary to divide the overall coding canvas to obtain multiple segmented canvas images, so that the coding device can perform coding according to the segmented canvas images each time.

[0082] More specifically, in one example, the above S1033 may further include:

[0083] S10331, obtain the first coding width of the coding device and the overall canvas width of the overall coding canvas, where the first coding width is the maximum coding width obtained by combining multiple coding heads;

[0084] S10332, taking the first coding width as the standard, divide the overall coding canvas according to the overall canvas width and the combined coding width of multiple coding heads to obtain at least one coded segmented canvas.

[0085] In the above S10331, the coding device is formed by combining multiple coding heads. Each coding head has a coding width. When multiple coding heads are integrated together, it is a coding range where the coding widths of each coding head are combined together. The width of this range is the first coding width of the coding device.

[0086] The overall coding canvas is a blueprint applicable to the steel plate coding system, and its specifications are fixed. Therefore, its overall canvas width is also fixed and can be directly obtained through the nameplate of the steel plate coding system or preset by the operator.

[0087] In the above S10332, the first coding width is the maximum width that the coding device can perform coding. To make the most of the coding device to perform coding and improve coding efficiency, the overall coding canvas can be divided based on the overall canvas width with the first coding width as the standard, so as to obtain at least one segmented canvas image.

[0088] It should be noted that since the overall canvas width may not necessarily be divisible by the overall canvas width, there may be a situation where the width of at least one coded segmented canvas is less than the first coding width.

[0089] In the above S104, control multiple coding heads to perform coding on the target steel plate according to the size of each segmented canvas and the pattern content to be coded.

[0090] Specifically, in one example, the above S104 may include:

[0091] S1041, control the coding device to perform coding on the target steel plate in sequence according to the coded segmented canvas;

[0092] S1042, in the case that there is a target inkjet segmentation canvas on the inkjet segmentation canvas with a canvas segmentation width smaller than the first inkjet width of the inkjet device, control some of the inkjet heads in the inkjet device to perform inkjet on the target steel plate according to the target inkjet segmentation canvas, where the canvas segmentation width is the width of the inkjet segmentation canvas.

[0093] In the above S1041, since each inkjet segmentation canvas is obtained by dividing the overall inkjet canvas, the inkjet segmentation canvases can be sorted according to the adjacent relationship of the inkjet segmentation canvases, and the target steel plate is inkjet in sequence according to the inkjet segmentation canvases in the sorting.

[0094] For example: There are four inkjet segmentation canvases A, B, C, and D sorted according to the adjacent relationship. Control the inkjet device to perform inkjet on the target steel plate by displacing along the X-axis direction (length direction). After moving M unit displacements, the inkjet operation related to A is completed. Then control the inkjet device to displace N unit displacements along the Y-axis direction (width direction), where N unit displacements is the canvas segmentation width. Then control the inkjet structure to displace in the reverse direction of the X-axis to perform inkjet on the target steel plate, and so on, so that the inkjet of the entire target steel plate can be completed.

[0095] In the above S1042, if there is a situation where there is a target inkjet segmentation canvas on the inkjet segmentation canvas with a canvas segmentation width smaller than the first inkjet width, the target inkjet segmentation canvas does not require all the inkjet heads in the inkjet device to complete the inkjet operation. Therefore, control some of the inkjet heads in the inkjet device to perform inkjet on the target steel plate according to the target inkjet segmentation canvas.

[0096] Embodiment 2:

[0097] Optionally, in an example, before the above S101, the method may further include:

[0098] S201, obtain the maximum operating speed of the inkjet device, the maximum format specification of each inkjet head, the maximum inkjet beat of the steel plate inkjet system, and the maximum inkjet steel plate information;

[0099] S202, determine the maximum operating duration of the inkjet device according to the quotient of the maximum inkjet steel plate information and the maximum operating speed;

[0100] S203, calculate the number of inkjet heads in the inkjet device according to the maximum operating duration, the maximum inkjet steel plate information, the maximum format specification, and the maximum inkjet beat.

[0101] In the above example, by obtaining each extreme value (maximum value) during the operation of the steel plate inkjet system and then calculating to obtain the number of inkjet heads, the calculated number of inkjet heads can meet the maximum inkjet beat required by the steel plate inkjet system, which is more conducive to realizing the beat uniformity of the steel plate inkjet system.

[0102] In the above S201, information such as the operating parameter nameplate of the inkjet coding device and the steel plate inkjet coding system, and design parameters can be used to obtain the maximum operating rate of the inkjet coding device, the maximum format specification of each inkjet head, the maximum inkjet coding beat of the steel plate inkjet coding system, and the maximum inkjet coding steel plate information.

[0103] Among them, the maximum inkjet coding steel plate information may include: information such as the maximum length, maximum width, and maximum height of the steel plate.

[0104] The maximum operating rate of the inkjet coding device refers to: the highest moving speed when the inkjet head moves uniformly in the X-axis direction (steel plate length direction), which determines the time efficiency of single-time inkjet coding and requires balancing speed and accuracy;

[0105] The maximum format specification of each inkjet head refers to the maximum coverage width of a single inkjet head in the Y-axis direction (steel plate width direction), which affects the number of inkjet heads and the coverage ability;

[0106] The maximum inkjet coding beat of the steel plate inkjet coding system refers to the maximum allowable time for the steel plate inkjet coding system to process a single steel plate.

[0107] In the above S202, according to the length of the maximum inkjet coding steel plate information in the maximum operating rate direction, the maximum operating duration of the inkjet coding device in the maximum operating rate direction can be obtained.

[0108] Specifically, the maximum inkjet coding steel plate information is: the maximum length of the steel plate;

[0109] Then, the maximum operating duration T1 can be calculated according to the following formula.

[0110] T1 = (X1 + ΔX) ÷ V1

[0111] Among them, T1 is the maximum operating duration, X1 is the maximum length of the steel plate, ΔX is the length adjustment amount of the target steel plate in the length direction, the length adjustment amount is less than the maximum value of the length direction offset of the target steel plate in the steel plate inkjet coding system, and V1 is the maximum operating rate

[0112] In the above S203, the maximum inkjet coding steel plate information is the maximum width of the steel plate;

[0113] Therefore, the number N of required inkjet heads can be solved according to the following formula.

[0114] N = (Y1 + ΔY) ÷ (L × T2 ÷ T1)

[0115] Wherein, N is the number of inkjet heads, Y1 is the maximum width of the steel plate, ΔY is the width adjustment amount of the target steel plate in the width direction, and the width adjustment amount is less than the allowable value of the width deviation of the target steel plate placement, L is the maximum format specification, T2 is the maximum inkjet coding beat, and T1 is the maximum running duration.

[0116] Embodiment 3;

[0117] As Figures 3 - 5 shown.

[0118] There is also provided a steel plate inkjet coding system 1, which may include:

[0119] A central control device for obtaining the steel plate inkjet coding information of the target steel plate;

[0120] An inkjet coding device 10, the inkjet coding device 10 includes an edge detection unit 11 and a plurality of inkjet heads 12, the central control device is connected to the edge detection unit 11 and is used to control the edge detection unit 11 to scan the target steel plate to obtain the position information of the target steel plate; the central control device is respectively connected to each of the inkjet heads 12, and the central control device is used to divide the overall canvas of the steel plate inkjet coding system 1 according to the target steel plate position information, the steel plate inkjet coding information and the combined inkjet coding width of the plurality of inkjet heads 12 to obtain at least one inkjet coding divided canvas, and control the plurality of inkjet heads 12 to perform inkjet coding on the target steel plate according to the inkjet coding divided canvas.

[0121] In the above example, after receiving the steel plate inkjet coding information of the target steel plate, the central control device first notifies the edge detection unit 11 to perform edge finding on the target steel plate to obtain the position information of the target steel plate relative to the zero point of the steel plate inkjet coding system 1. The position information of the steel plate may include an offset amount. The central control device reconstructs the actual coordinate system of the steel plate according to the offset amount, then converts the steel plate part information into an entire canvas, and finally divides the entire canvas into a plurality of inkjet coding divided canvases along the length direction of the steel plate inkjet coding system 1.

[0122] Based on the above example, after obtaining the steel plate coding information that needs to be coded for the target steel plate, the edge detection unit is controlled to scan the target steel plate to determine the position information of the target steel plate in the steel plate coding system 1. Thus, the overall canvas in the steel plate coding system 1 can be divided according to the position information of the target steel plate and the steel plate coding information, obtaining at least one coding-segmented canvas, and then the coding head 12 can be controlled to code the target steel plate according to the coding-segmented canvas. Based on this, by dividing the overall canvas according to the position information of the target steel plate and the steel plate coding information, no matter how many parts are on the target steel plate and how complex the coding content is, the overall canvas is always divided. Furthermore, when coding the target steel plate, it always remains within the beat limit of the steel plate coding system 1, making the beat of the steel plate coding link reach equilibrium in the entire intelligent cutting production line, and at the same time making the coding cost performance of the steel plate coding system 1 optimal.

[0123] Optionally, in one example, the steel plate coding system 1 further includes:

[0124] A gantry 20, on which the coding device 10 is installed;

[0125] A driving device 30, the driving device 30 is connected to the coding device 10, the central control device is communicatively connected to the driving device 30, and the central control device is used to control the driving device 30 to drive the coding device 10 to move on the gantry 20.

[0126] In the above example, after installing the coding device 10 on the gantry 20 and connecting the driving device 30 to the coding device 10, the central control device can control the driving device 30 to drive the coding device 10 to move along the X-axis (length) and Y-axis (width) directions of the gantry 20, so that the coding device 10 can freely perform coding operations on the target steel plate placed on the steel plate coding system 1.

[0127] More specifically, the central control device sends the first divided inkjet printing divided canvas to the control card of the inkjet printing device 10, and at the same time notifies the driving device 30 to start working; the inkjet printing device 10 is located at the initial position of the Y-axis, and the gantry 20 drives the inkjet printing device 10 to move uniformly along the positive X-axis. When the inkjet printing head 12 enters the edge of the overall inkjet printing canvas, the inkjet printing device 10 controls the inkjet printing head 12 to work and spray according to the content of the first canvas; after the first canvas is printed, the X-axis movement stops. Then the central control device sends the second divided inkjet printing canvas to the control card in the inkjet printing device 10, and at the same time controls the inkjet printing device 10 to move along the Y-axis to the width position of the second divided inkjet printing canvas. Then the inkjet printing device 10 moves uniformly in the reverse direction of the X-axis to perform the inkjet printing of the second divided inkjet printing canvas; subsequent canvases are carried out in accordance with the above steps in turn; when the width of the last divided inkjet printing canvas is inconsistent with that of the previous ones, the driving device 30 and the inkjet printing control card execute the printing according to the actual width parameter of the last divided inkjet printing canvas.

[0128] Optionally, the inkjet printing device 10 further includes:

[0129] A housing cover 13, the edge detection unit 11 is installed on the side surface of the housing cover 13, and a plurality of inkjet printing heads 12 are embedded in the housing cover 13;

[0130] A curing member 14, the curing member 14 is installed on the side surface of the housing cover 13, and the distance between the bottom of the curing member 14 and the target steel plate is greater than the distance between the bottom of the inkjet printing head 12 and the target steel plate.

[0131] In the above example, the housing cover 13: is made of a lightweight alloy material (such as aluminum alloy) or engineering plastic, and the top is fixed on the Z-axis of the gantry 20. A plurality of connection ports can be opened on its outer surface. The central control device uses connection pipelines to sequentially pass through the connection ports and the accommodation cavity to connect with the inkjet printing head 12, the curing member 14, and the edge detection unit 11.

[0132] More specifically, the edge detection unit 11 can be a laser scanning head or a vision camera, and it is installed at the edge position of the side surface of the housing cover 13.

[0133] A plurality of inkjet printing heads 12 are arranged in a Z-shaped parallel arrangement in the Y-axis direction, and the distance between two adjacent inkjet printing heads 12 can be adjusted.

[0134] The curing member 14 can be an ultraviolet curing lamp, which is symmetrically arranged on both sides of the inkjet printing head 12 and moves synchronously with the inkjet printing head 12.

[0135] By integrating discrete functional units into a single physical structure, the floor area of the production line is reduced. At the same time, the inkjet head 12, the curing unit 14, and the edge detection unit 11 eliminate the cooperation delay between different devices through a real-time data closed-loop (edge detection → inkjet coding → curing) in a closed environment. And the outer shell 13 can effectively protect the internal connection lines of the inkjet head 12, the curing unit 14, and the edge detection unit 11, improving the working stability of the inkjet head 12, the curing unit 14, and the edge detection unit 11.

[0136] It should also be noted that the exemplary embodiments mentioned in the present invention describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps can be executed in the order mentioned in the embodiments, can be different from the order in the embodiments, or several steps can be executed simultaneously.

[0137] The above has described various aspects of the present disclosure with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each block in the flowchart and / or block diagram, and the combinations of blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable steel plate inkjet coding methods, apparatuses, and devices to produce a machine such that these instructions executed by the processor of the computer or other programmable steel plate inkjet coding methods, apparatuses, and devices enable the implementation of the functions / actions specified in one or more blocks of the flowchart and / or block diagram. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It can also be understood that each block in the block diagram and / or flowchart, and the combinations of blocks in the block diagram and / or flowchart, can also be implemented by dedicated hardware that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0138] As described above, the above is only the specific implementation manner of the present invention. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described systems, modules, and units can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein. It should be understood that the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A steel plate coding method, characterized in that: The steel plate coding method is applied to a steel plate coding system, the steel plate coding system comprises: a coding device, the coding device comprises an edge detection unit and a plurality of coding terminals, the steel plate coding method comprises: Obtain the steel plate coding information of the target steel plate; Controlling the edge-finding detection unit to scan the target steel plate to obtain the position information of the target steel plate; According to the target steel plate position information, the steel plate coding information and the combined coding widths of the plurality of coding terminals, the overall coding canvas of the steel plate coding system is segmented to obtain at least one coding segmentation canvas; According to the coding segmentation canvas, a plurality of the coding stations are controlled to code the target steel plate.

2. The steel plate coding method according to claim 1, characterized in that: Before obtaining the steel plate coding information of the target steel plate, the method further includes: Obtain the maximum operating speed of the coding equipment, the maximum format specification of each coding terminal, the maximum coding cycle of the steel plate coding system and the maximum coding steel plate information; Determine the maximum operating time of the coding device according to the quotient of the maximum coding steel plate information and the maximum operating rate; The number of the inkjet terminals in the inkjet equipment is calculated according to the maximum operating time, the maximum inkjet steel plate information, the maximum format specification and the maximum inkjet cycle.

3. The steel plate coding method according to claim 2, characterized in that: The maximum coding steel plate information includes: the maximum length of the steel plate; Determining the maximum operating time of the coding device according to the quotient of the maximum coding steel plate information and the maximum operating rate includes: The maximum runtime is determined according to the following formula: T1=(X1+ΔX)÷V1 The T1 is the maximum operating time, the X1 is the maximum length of the steel plate, ΔX is the length adjustment amount of the target steel plate in the length direction, the length adjustment amount is smaller than the maximum length direction offset of the target steel plate in the steel plate coding system, and the V1 is the maximum operating speed.

4. The steel plate coding method according to claim 2, characterized in that: The maximum coding steel plate information includes: the maximum width of the steel plate; The number of inkjet terminals in the inkjet device is calculated based on the maximum operating time, the maximum inkjet steel plate information, the maximum format specification and the maximum inkjet beat, including: The number of spray terminals is calculated according to the following formula: N=(Y1+ΔY)÷(L×T2÷T1) N is the number of inkjet printing terminals, Y1 is the maximum width of the steel plate, ΔY is the width adjustment amount of the target steel plate in the width direction, the width adjustment amount is less than the allowable value of the width direction offset of the target steel plate, L is the maximum format specification, T2 is the maximum inkjet printing cycle, and T1 is the maximum operating time.

5. The steel plate coding method according to claim 1, characterized in that: The method of segmenting the overall coding canvas of the steel plate coding system according to the target steel plate position information, the steel plate coding information and the combined coding width of the plurality of coding terminals to obtain at least one coding segmentation canvas includes: Performing image conversion on the steel plate coding information to generate an initial coding canvas; According to the target steel plate position information, the initial coding canvas is calibrated to obtain the overall coding canvas; The overall coding canvas is divided according to the combined coding widths of the plurality of coding terminals to obtain at least one coding divided canvas.

6. The steel plate coding method according to claim 5, characterized in that: The step of segmenting the overall coding canvas according to the combined coding widths of the plurality of coding terminals to obtain at least one segmented coding canvas comprises: Obtaining the overall width of the overall coding canvas; Taking the combined coding width as a standard, the entire coding canvas is divided according to the overall width of the canvas to obtain at least one coding divided canvas.

7. The steel plate coding method according to claim 1, characterized in that: The step of controlling the plurality of spray terminals to spray the target steel plate according to the spray code segmentation canvas comprises: According to the adjacent relationship, the coding device is controlled to sequentially code the target steel plate on each of the coding segmentation canvases; In the case where there is a target coding segmentation canvas in the coding segmentation canvas whose canvas segmentation width is smaller than the first coding width of the coding device, some coding stations in the coding device are controlled to code the target steel plate according to the target coding segmentation canvas, and the canvas segmentation width is the width of the coding segmentation canvas.

8. A steel plate coding system, characterized in that: The steel plate coding system comprises: Central control equipment, used to obtain the steel plate coding information of the target steel plate; The coding equipment comprises an edge-finding detection unit and a plurality of coding terminals, the central control device is connected to the edge-finding detection unit, and is used to control the edge-finding detection unit to scan the target steel plate to obtain the position information of the target steel plate; the central control device is respectively connected to each of the coding terminals, and is used to divide the overall canvas of the steel plate coding system according to the target steel plate position information, the steel plate coding information and the combined coding width of the plurality of coding terminals to obtain at least one coding segmentation canvas, and control the plurality of coding terminals to code the target steel plate according to the coding segmentation canvas.

9. The steel plate coding system according to claim 8, characterized in that: The steel plate coding system also includes: A gantry, on which the coding device is installed; A driving device, wherein the driving device is connected to the coding device, the central control device is communicatively connected to the driving device, and the central control device is used to control the driving device to drive the coding device to move on the gantry.

10. The steel plate coding system according to any one of claims 8 to 9, characterized in that: The coding device also includes: An outer shell cover, the edge-finding detection unit is mounted on a side of the outer shell cover, and a plurality of spray terminals are embedded in the outer shell cover; A curing component is installed on the side of the outer shell cover, and the distance between the bottom of the curing component and the target steel plate is greater than the distance between the bottom of the spray terminal and the target steel plate.

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