Automatic alignment method, system and equipment for ink jet printer and storage medium

Abstract

The invention relates to the technical field of ceramic tile production, and discloses an ink jet printer automatic alignment method, system and equipment and a storage medium. The method comprises the following steps: acquiring an ink jet machine inlet image and a ceramic tile conveying device image, and determining a first relative position of an ink jet machine inlet and a ceramic tile conveying device according to the ink jet machine inlet image and the ceramic tile conveying device image; obtaining a ceramic tile image, and determining a second relative position of the ceramic tile and the ceramic tile conveying device according to the ceramic tile image and the ceramic tile conveying device image; according to the first relative position and the second relative position, calculating a relative angle difference value between the ceramic tile and the inlet of the ink jet printer; and according to the relative angle difference value, adjusting a tile pattern in the ink jet printer to be matched with the tile. According to the invention, the tile image and the tile can be accurately aligned no matter how the angle of the tile or the tile image changes.

Description

Technical Field

[0001] The present application relates to the technical field of ceramic tile production, and in particular to an automatic alignment method, system, equipment and storage medium for an inkjet machine. Background Art

[0002] In the production process of ceramic tiles, it is often necessary to use an inkjet machine to inkjet print the ceramic tiles according to a preset design pattern. Therefore, before the ceramic tiles are inkjetted, the ceramic tiles must be strictly placed in the preset position to correspond to the printed pattern to avoid pattern displacement. At present, a centering machine is generally used to position and center the ceramic tiles. However, when the inkjet pattern to be printed changes, the centering machine needs to be manually adjusted, making it difficult to achieve automatic alignment of the ceramic tiles when printing different design patterns. Summary of the invention

[0003] In a first aspect, the present application provides an automatic alignment method for an inkjet printer, comprising:

[0004] Acquire an inkjet inlet image and a tile conveying device image, and determine a first relative position of the inkjet inlet and the tile conveying device according to the inkjet inlet image and the tile conveying device image;

[0005] Acquire a tile image, and determine a second relative position between the tile and the tile conveying device according to the tile image and the tile conveying device image;

[0006] Calculating a relative angle difference between the tile and the inkjet machine inlet according to the first relative position and the second relative position;

[0007] Based on the relative angle difference, the tile pattern in the inkjet printer is adjusted to match the tile.

[0008] In one embodiment, determining the first relative position between the inkjet machine inlet and the tile conveying device includes:

[0009] Determining a reference line of the inkjet inlet according to the inkjet inlet image;

[0010] Constructing a registration coordinate system according to the reference line;

[0011] Obtaining a first coordinate of the inkjet machine inlet in the alignment coordinate system, and obtaining a second coordinate of the tile conveying device in the alignment coordinate system;

[0012] The first relative position is determined according to the first coordinate and the second coordinate.

[0013] In one embodiment, calculating the relative angle difference between the tile and the inkjet inlet includes:

[0014] According to the tile image and the tile conveying device image, coordinate transformation is performed on the tile to obtain a third coordinate of the tile in the alignment coordinate system;

[0015] The relative angle difference is calculated according to the first coordinate, the second coordinate and the third coordinate.

[0016] In one embodiment, the method further comprises:

[0017] Determining the outline of the tile according to the third coordinate of the tile;

[0018] The style of the tile is determined according to the outline of the tile.

[0019] In one embodiment, calculating the relative angle difference between the tile and the inkjet inlet further includes:

[0020] If the outline of the tile is not a rectangle, generating a minimum circumscribed matrix according to the outline of the tile;

[0021] The relative angle difference is calculated according to the minimum circumscribed matrix.

[0022] In one embodiment, adjusting the tile pattern in the inkjet printer to match the tile comprises:

[0023] Determining the position offset information of the tile according to the third coordinate;

[0024] The tile pattern is adjusted according to the position offset information and the relative angle difference so that the tile pattern matches the tile.

[0025] In one embodiment, the method further comprises:

[0026] The target printing point of the inkjet machine is determined according to the position offset information, the relative angle difference and the style of the tile, and the inkjet machine is adjusted according to the target printing point.

[0027] In a second aspect, the present application provides an automatic alignment system for an inkjet printer, comprising:

[0028] A first acquisition module is used to acquire an inkjet inlet image and a tile conveying device image, and determine a first relative position between the inkjet inlet and the tile conveying device according to the inkjet inlet image and the tile conveying device image;

[0029] A second acquisition module is used to acquire a tile image, and determine a second relative position between the tile and the tile conveying device according to the tile image and the tile conveying device image;

[0030] A calculation module, used for calculating the relative angle difference between the tile and the inkjet machine inlet according to the first relative position and the second relative position;

[0031] An adjustment module is used to adjust the tile pattern in the inkjet printer to match the tile according to the relative angle difference.

[0032] In a third aspect, the present application provides a computer device, comprising a processor and a memory, wherein the memory stores a computer program, and the processor is used to execute the computer program to implement the automatic inkjet alignment method described in the first aspect.

[0033] In a fourth aspect, the present application provides a computer storage medium storing a computer program, which, when executed on a processor, implements the inkjet automatic alignment method described in the first aspect.

[0034] The embodiments of the present application have the following beneficial effects:

[0035] The embodiments of the present application provide an automatic alignment method, system, device and storage medium for an inkjet machine. By acquiring a tile image, an inkjet machine entrance image and an image of a tile conveying device, a first relative position of the inkjet machine entrance and the tile conveying device, and a second relative position of the tile and the tile conveying device are determined. According to the first relative position and the second relative position, an angular error value of the tile relative to the inkjet machine entrance is determined, and the tile image in the inkjet machine is adjusted according to the angular error value, so that no matter how the angle of the tile or the tile image changes, the tile image and the tile can be accurately aligned. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present application and should not be regarded as limiting the scope of protection of the present application. For ordinary technicians in this field, other related drawings can also be obtained based on these drawings without creative work.

[0037] Figure 1 A schematic flow chart of an automatic alignment method for an inkjet printer according to the present embodiment is shown;

[0038] Figure 2 A schematic structural diagram of an automatic alignment system for an inkjet printer according to the present embodiment is shown;

[0039] Figure 3 A schematic flow chart of a first relative position acquisition method of this embodiment is shown;

[0040] Figure 4A schematic diagram of the framework structure of an automatic alignment system for an inkjet printer according to this embodiment is shown. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0042] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0043] Hereinafter, the terms "including", "having" and their cognates, which may be used in various embodiments of the present application, are intended only to indicate specific features, numbers, steps, operations, elements, components, or combinations of the foregoing items, and should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing items or adding the possibility of one or more features, numbers, steps, operations, elements, components, or combinations of the foregoing items.

[0044] Furthermore, the terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0045] Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as those generally understood by those skilled in the art to which the various embodiments of the present application belong. The terms (such as those defined in generally used dictionaries) will be interpreted as having the same meanings as the contextual meanings in the relevant technical field and will not be interpreted as having idealized meanings or overly formal meanings unless clearly defined in the various embodiments of the present application.

[0046] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0047] See also Figure 1 , Figure 1 The present invention provides a flowchart of an automatic alignment method for an inkjet printer, which can realize automatic alignment between an inkjet printer image and a tile. The method includes:

[0048] S101, acquiring an inkjet machine entrance image and a tile conveying device image, and determining a first relative position of the inkjet machine entrance and the tile conveying device according to the inkjet machine entrance image and the tile conveying device image.

[0049] See also Figure 2 , Figure 2 A schematic structural diagram of an automatic alignment system for an inkjet printer provided in this embodiment.

[0050] The automatic alignment system of the inkjet machine mainly includes an inkjet machine and a tile conveying device. The tile conveying device is used to convey the tiles into the inkjet machine, and then the inkjet machine prints the preset patterns on the tiles, so that the tiles can present different patterns.

[0051] Since the placement of the tiles on the tile conveying device is not fixed, in order to make the printing position of the pattern exactly match the tile, the position of the tile needs to be adjusted. The existing method is usually to use a centering machine to adjust the angle of the tile so that the tile is exactly in the standard position for pattern printing. However, in the actual production process, in addition to the unfixed position of the tile, the tile pattern in the inkjet machine will also change. When the tile pattern changes, the centering machine cannot adjust the position of the tile according to the pattern. At this time, manual adjustment is required, which is a cumbersome process and may result in errors. Moreover, once an error occurs, the tile pattern printing may be offset, causing the tile to be scrapped.

[0052] Therefore, the solution of this embodiment first obtains the inkjet machine entrance image and the tile conveying device image to determine the first relative position of the inkjet machine entrance and the tile conveying device. The inkjet machine entrance and the tile conveying device are generally in a vertical relationship. Therefore, a positioning coordinate system for automatic positioning of the inkjet machine can be constructed based on the relative position relationship.

[0053] For example, since the width of the inkjet inlet is fixed, a reference line can be determined based on the midpoint of the inkjet inlet, or the reference line can be determined based on the actual inkjet area of ​​the inkjet. The reference line can be a center line. When the position of the tile is the standard printing position, when the tile is transported to the inkjet machine, the center line can just divide the tile into two identical left and right parts, so that there will be no error when the inkjet machine prints.

[0054] like Figure 2 As shown, after determining the center line, a positioning coordinate system can be constructed with the inkjet inlet as the horizontal coordinate and the center line as the vertical coordinate. Then, based on the first relative position of the inkjet inlet and the tile conveying device, the coordinates of the tile conveying device at each point can be determined.

[0055] S102, acquiring a tile image, and determining a second relative position between the tile and the tile conveying device according to the tile image and the tile conveying device image.

[0056] like Figure 2 As shown, the tile is at a certain angle relative to the inkjet inlet, so if it is printed normally, the printed pattern will be offset. In order to determine the specific offset angle and offset of the tile, the second relative position of the tile and the tile conveying device can be determined based on the tile image and the tile conveying device image.

[0057] In order to reduce the amount of calculation, an image acquisition area can be set, and when the tile reaches the image acquisition area, the tile image is acquired.

[0058] S103. Calculate the relative angle difference between the tile and the inkjet machine inlet according to the first relative position and the second relative position.

[0059] Since the position of the inkjet machine entrance and the position of the tile can both be reflected as relative positions relative to the tile conveying device, the third relative position of the tile and the inkjet machine entrance can be deduced based on the first relative position and the second relative position. Based on the third relative position, the relative angle difference between the tile and the inkjet machine entrance can be calculated.

[0060] S104, adjusting the tile pattern in the inkjet machine to match the tile according to the relative angle difference.

[0061] According to the relative angle difference, the offset of the tile relative to the inkjet inlet, or the center line corresponding to the inkjet inlet, can be determined. The tile pattern in the inkjet machine can be adjusted according to the offset, so that the tile pattern can be correctly printed on the tile.

[0062] This embodiment determines the first relative position of the inkjet inlet and the tile conveying device, and the second relative position of the tile and the tile conveying device by acquiring the tile image, the inkjet inlet image and the tile conveying device image, and determines the angular error value of the tile relative to the inkjet inlet based on the first relative position and the second relative position, and adjusts the tile image in the inkjet according to the angular error value, so that no matter how the angle of the tile or the tile image changes, the tile image and the tile can be accurately aligned.

[0063] See also Figure 3 Step S101 includes: Steps S1011-S1034

[0064] S1011. Determine a reference line of the inkjet inlet according to the inkjet inlet image.

[0065] S1012: constructing an alignment coordinate system according to the reference line.

[0066] S1013, obtaining the first coordinate of the inkjet machine inlet in the alignment coordinate system, and obtaining the second coordinate of the tile conveying device in the alignment coordinate system.

[0067] S1014. Determine the first relative position according to the first coordinate and the second coordinate.

[0068] like Figure 2 As shown, in order to reduce the amount of calculation, when constructing the alignment coordinate system with the reference line, the intersection of the inkjet machine entrance and the reference line can be used as the origin. The reference line is usually set as the center line. Therefore, the vertical coordinate of each point at the inkjet machine entrance is 0, and the horizontal coordinate of each point on the tile conveying device is 0. The first relative position can be directly reflected by the coordinates of each point on the tile conveying device.

[0069] In this embodiment, a coordinate system is constructed through a reference line of the inkjet machine entrance, so that the positions of the inkjet machine entrance and the tile conveying device can be reflected through coordinates, which reduces the difficulty of calculation and improves the efficiency of automatic alignment.

[0070] In one embodiment, calculating the relative angle difference between the tile and the inkjet inlet includes:

[0071] According to the tile image and the tile conveying device image, coordinate transformation is performed on the tile to obtain a third coordinate of the tile in the alignment coordinate system;

[0072] The relative angle difference is calculated according to the first coordinate, the second coordinate and the third coordinate.

[0073] like Figure 2 As shown, in order to improve the accuracy of automatic alignment, the position of the image acquisition area can be fixed according to the alignment coordinate system. For example, the coordinates of the intersection of the image acquisition area and the tile conveying device, that is, point A, are determined to be (0, A). When the vertex of the tile reaches the upper half of the image acquisition area, that is, the horizontal line where point A is located, the image of the tile is acquired, and then the intersection of the lower half of the image acquisition area, that is, the horizontal line where point B is located, is determined. According to the line connecting points AB, the third coordinate of the tile can be determined.

[0074] Since the coordinate system is established based on the inkjet printer entrance and midline, the relative angle difference can be determined based on the AB line and the AC line. If the coordinate system is not established based on the inkjet printer entrance and midline, the corresponding coordinate conversion is required to determine the relative angle difference.

[0075] If the tile conveying device image, the tile image and the inkjet inlet image do not exist in the same frame image, that is, the tile conveying device image and the tile image collected at time A, and the tile conveying device image and the inkjet inlet image collected at time B, then when performing coordinate conversion, it is necessary to ensure that the tile conveying device images collected at the two times are in the same position, so as to accurately calculate the relative angle difference between the tile and the inkjet inlet.

[0076] This embodiment uses coordinate conversion to place the tiles, the tile conveying device and the inkjet machine entrance in the same coordinate system, and then determines the relative angle difference between the tiles and the inkjet machine entrance, thereby achieving automatic alignment of the inkjet machine.

[0077] In one embodiment, the method further comprises:

[0078] Determining the outline of the tile according to the third coordinate of the tile;

[0079] The style of the tile is determined according to the outline of the tile.

[0080] Since the outlines of different tiles are different, and the outlines can be mainly reflected in factors such as shape, size, and angle, after obtaining the outlines of the tiles in the image acquisition area, the style of the tiles can be determined.

[0081] This embodiment determines the style of the tile by the outline of the tile. Because tiles of different styles may have different patterns, pattern printing methods, and relative angle difference calculation methods, by determining the style of the tile, the automatic alignment of the inkjet machine and the printing of the pattern can be made more accurate.

[0082] In one embodiment, calculating the relative angle difference between the tile and the inkjet inlet further includes:

[0083] If the outline of the tile is not a rectangle, generating a minimum circumscribed matrix according to the outline of the tile;

[0084] The relative angle difference is calculated according to the minimum circumscribed matrix.

[0085] Since tiles may have different styles and their shapes may be different, when the outline of the tile is not a rectangle, in order to better calculate the relative angle difference, the minimum circumscribed matrix can be generated according to the outline of the tile, and then the relative angle difference calculation method mentioned above can be used for calculation. In this way, tiles of various styles can accurately obtain their corresponding relative angle differences, thereby improving the accuracy of automatic alignment.

[0086] In one embodiment, adjusting the tile pattern in the inkjet printer to match the tile comprises:

[0087] Determining the position offset information of the tile according to the third coordinate;

[0088] The tile pattern is adjusted according to the position offset information and the relative angle difference so that the tile pattern matches the tile.

[0089] The position offset information of the tile can be determined according to the third coordinate of the tile, and the position offset information can be accurately calculated according to the coordinates of each reference point of the tile, such as Figure 2 As shown in , the position offset information of the tile can be determined based on the line connecting points AB and the center line. The relative angle difference of the tile can be determined based on the line connecting points AB and AC. Then, the tile pattern in the inkjet printer can be adjusted accordingly so that the tile pattern can be accurately printed on the tile.

[0090] In one embodiment, the method further includes: determining a target printing point of the inkjet machine according to the position offset information, the relative angle difference and the style of the tile, and adjusting the inkjet machine according to the target printing point.

[0091] Before printing, the inkjet printer has a default starting printing point. When the tile reaches the preset printing position, the inkjet printer starts printing the corresponding tile pattern on the tile from the starting printing point. When the position of the tile is offset or tilted, if the starting printing point of the inkjet printer is not adjusted accordingly, the printed pattern may still be offset even if the angle of the pattern is adjusted. The starting printing point can also be a positioning mark such as a print frame and a print line.

[0092] For example, the starting printing point is Figure 2 On the reference line shown in , under normal circumstances, the reference line is exactly the center line of the tile. If the tile is offset so that the reference line is no longer the center line of the tile, if printing is still started from the starting printing point, part of the pattern may be printed outside the tile. Therefore, after determining the position offset information, relative angle difference and style of the tile, the position of the starting printing point can be transformed accordingly to obtain the target printing point, and then the inkjet machine can be adjusted accordingly according to the target printing point so that the inkjet machine starts printing from the target printing point when printing, so that the inkjet machine printing point is synchronized with the offset of the tile.

[0093] In addition, tiles of different styles have different sizes, so the printing time of the tile pattern can be calculated based on the position offset information, the relative angle difference and the style of the tile.

[0094] For example, the normal printing time of A-style tiles is 5 seconds, but after determining the offset information and relative angle difference, the actual printing time may become 6 seconds. The normal printing time of B-style tiles is 8 seconds, but after determining the offset information and relative angle difference, the actual printing time may become 7 seconds.

[0095] This embodiment adjusts the printing angle and printing time of the tile pattern according to the position offset information of the tile, the relative angle difference and the style of the tile, so that no matter whether the position or pattern of the tile changes, the inkjet printer can automatically align and print the pattern accurately on the tile.

[0096] See also Figure 4 This embodiment also provides an inkjet automatic alignment system 400, including:

[0097] The first acquisition module 401 is used to acquire an inkjet inlet image and a tile conveying device image, and determine a first relative position of the inkjet inlet and the tile conveying device based on the inkjet inlet image and the tile conveying device image.

[0098] The second acquisition module 402 is used to acquire a tile image, and determine a second relative position between the tile and the tile conveying device according to the tile image and the tile conveying device image.

[0099] The calculation module 403 is used to calculate the relative angle difference between the tile and the inkjet machine inlet according to the first relative position and the second relative position.

[0100] The adjustment module 404 is used to adjust the tile pattern in the inkjet printer to match the tile according to the relative angle difference.

[0101] It can be understood that the automatic inkjet alignment system of the present embodiment corresponds to the automatic inkjet alignment method of the above embodiment, and the options in the above embodiment are also applicable to the present embodiment, so they will not be described again here.

[0102] The present application also provides a computer device. Exemplarily, the computer device includes a processor and a memory, wherein the memory stores a computer program, and the processor runs the computer program to enable the computer device to execute the functions of the various modules in the above-mentioned inkjet automatic alignment method or the above-mentioned inkjet automatic alignment system.

[0103] Among them, the processor can be an integrated circuit chip with signal processing capabilities. The processor can be a general-purpose processor, including a central processing unit (CPU), a graphics processing unit (GPU) and a network processor (NP), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or at least one of other programmable logic devices, discrete gates or transistor logic devices, and discrete hardware components. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc., which can implement or execute the disclosed methods, steps and logic block diagrams in the embodiments of the present application.

[0104] The memory may be, but is not limited to, a random access memory (RAM), a read only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), etc. The memory is used to store a computer program, and the processor may execute the computer program accordingly after receiving an execution instruction.

[0105] The present application also provides a computer storage medium for storing the computer program used in the above-mentioned computer device. The computer storage medium may be a readable storage medium, or a non-volatile storage medium or a volatile storage medium. For example, the computer storage medium may include, but is not limited to, various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0106] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and structure diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of a code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in an alternative implementation, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the structure diagram and / or the flow diagram, and the combination of boxes in the structure diagram and / or the flow diagram, can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0107] In addition, the functional modules or units in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0108] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a smart phone, a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present application.

[0109] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. An automatic alignment method for an inkjet printer, characterized in that: include: Acquire an inkjet inlet image and a tile conveying device image, and determine a first relative position of the inkjet inlet and the tile conveying device according to the inkjet inlet image and the tile conveying device image; Acquire a tile image, and determine a second relative position between the tile and the tile conveying device according to the tile image and the tile conveying device image; Calculating a relative angle difference between the tile and the inkjet machine inlet according to the first relative position and the second relative position; Based on the relative angle difference, the tile pattern in the inkjet printer is adjusted to match the tile.

2. The automatic alignment method for inkjet printer according to claim 1, characterized in that: The step of determining a first relative position between the inkjet machine inlet and the tile conveying device comprises: Determining a reference line of the inkjet inlet according to the inkjet inlet image; Constructing a registration coordinate system according to the reference line; Obtaining a first coordinate of the inkjet machine inlet in the alignment coordinate system, and obtaining a second coordinate of the tile conveying device in the alignment coordinate system; The first relative position is determined according to the first coordinate and the second coordinate.

3. The automatic alignment method for inkjet printer according to claim 2, characterized in that: Calculating the relative angle difference between the tile and the inkjet machine inlet, including: According to the tile image and the tile conveying device image, coordinate transformation is performed on the tile to obtain a third coordinate of the tile in the alignment coordinate system; The relative angle difference is calculated according to the first coordinate, the second coordinate and the third coordinate.

4. The automatic alignment method for inkjet printer according to claim 3, characterized in that: The method further comprises: Determining the outline of the tile according to the third coordinate of the tile; The style of the tile is determined according to the outline of the tile.

5. The automatic alignment method for inkjet printer according to claim 4, characterized in that: Calculating the relative angle difference between the tile and the inkjet machine inlet also includes: If the outline of the tile is not a rectangle, generating a minimum circumscribed matrix according to the outline of the tile; The relative angle difference is calculated according to the minimum circumscribed matrix.

6. The automatic alignment method for inkjet printer according to claim 5, characterized in that: The step of adjusting the tile pattern in the inkjet machine to match the tile comprises: Determining the position offset information of the tile according to the third coordinate; The tile pattern is adjusted according to the position offset information and the relative angle difference so that the tile pattern matches the tile.

7. The automatic alignment method for inkjet printer according to claim 6, characterized in that: The method further comprises: The target printing point of the inkjet machine is determined according to the position offset information, the relative angle difference and the style of the tile, and the inkjet machine is adjusted according to the target printing point.

8. An automatic alignment system for an inkjet printer, characterized in that: include: A first acquisition module is used to acquire an inkjet inlet image and a tile conveying device image, and determine a first relative position between the inkjet inlet and the tile conveying device according to the inkjet inlet image and the tile conveying device image; A second acquisition module, used for acquiring a tile image, and determining a second relative position between the tile and the tile conveying device according to the tile image and the tile conveying device image; A calculation module, used for calculating the relative angle difference between the tile and the inkjet machine inlet according to the first relative position and the second relative position; An adjustment module is used to adjust the tile pattern in the inkjet machine to match the tile according to the relative angle difference.

9. A computer device, characterized in that: The computer device comprises a processor and a memory, wherein the memory stores a computer program, and the processor is used to execute the computer program to implement the automatic alignment method for an inkjet machine according to any one of claims 1 to 7.

10. A computer storage medium, characterized in that: The device stores a computer program, which, when executed on a processor, implements the automatic alignment method for an inkjet machine according to any one of claims 1 to 7.

Images