3D printing method, device and system for refraction variable image and terminal equipment

Abstract

The invention relates to a 3D printing method, device and system for a refraction variable image and terminal equipment. According to the 3D printing method, a printing data control model is established, after the printing data control model is obtained, a printing stock positioning instruction is generated, according to the printing stock positioning instruction, positioning data of a target printing stock are obtained, and according to the positioning data, the refraction variable image is obtained. Whether the target printing stock is located in a preset position range or not is judged, and when it is judged that the target printing stock is located in the preset position range, a preset spraying material is sprayed to the target printing stock according to the printing data control model, so that a preliminary printing product containing a spraying layer is obtained, according to the method, the spraying layer is subjected to preliminary pre-curing treatment so as to control the leveling property of the spraying material, the pre-cured printed product is obtained, the pre-cured printed product is subjected to full-curing treatment so as to obtain the printed product containing the refraction change image, and the process complexity is reduced.

Description

Technical Field

[0001] The present application relates to the field of printing, and in particular to a 3D printing method, device, system, terminal device and storage medium for refractable images. Background Art

[0002] Existing conversion refraction technology can only be achieved through molded materials if it is to be mass-produced. The process is complicated and only applicable to special materials. Summary of the invention

[0003] In view of this, the present invention provides a 3D printing method, apparatus, system, terminal device and storage medium of a refractable image, which can reduce the complexity of the process and realize batch 3D printing of refractable images.

[0004] A 3D printing method for a refractive image, wherein the refractive image includes a first target display image in a first refractive viewing angle range and a second target display image in a second refractive viewing angle range, and the printing method includes: A printing data control model for generating a refraction-variable image according to a first preset refraction viewing angle range, a first target display image, a second preset refraction viewing angle range, and a second target display image configuration; After the printing data control model is obtained, the substrate positioning instruction is generated; According to the substrate positioning instruction, the positioning data of the target substrate is obtained; According to the positioning data, determine whether the target substrate is within the preset position range; When it is determined that the target substrate is located within the preset position range, a printing instruction is generated according to the printing data control model; According to the printing instruction, spraying the preset spraying material onto the target substrate to obtain a preliminary printed product including the spraying layer; Performing preliminary pre-curing treatment on the sprayed layer to control the leveling property of the sprayed material, and obtaining a pre-cured printed product; The pre-cured printed product is fully cured to obtain a printed product containing a refractable image.

[0005] In one embodiment, the step of configuring and generating a printing data control model for a refractable image according to the first preset refractive angle range, the first target display image, the second preset refractive angle range, and the second target display image includes: Determine a first line layer model to be printed and corresponding first printing parameter information according to the first refraction angle range and the first target display image, wherein the first printing parameter information includes the shape, length, thickness, arrangement, line layer spacing and matching angles of each line layer of the first line layer model to be printed; Based on the first line layer model to be printed and the first printing parameter information, the second line layer model to be printed and the corresponding second printing parameter information are calculated and matched in combination with the second refraction angle range and the second target display image, wherein the second printing parameter information includes the shape, length, thickness, arrangement, line layer spacing and matching angles of each line layer of the second line layer model to be printed; A printing data control model is generated according to the first printing parameter information and the second printing parameter information.

[0006] In one embodiment, based on the first line layer model to be printed and the first printing parameter information, the steps of calculating and matching the corresponding second line layer model to be printed and the corresponding second printing parameter information in combination with the second refraction angle range and the second target display image, wherein the second printing parameter information includes the shape, length, thickness, arrangement, line layer spacing and matching angles of each line layer of the second line layer model to be printed include: Comparing the second target display image with the first target display image to determine overlapping areas and non-overlapping areas therebetween; Determine, according to the second refraction viewing angle range, a second line layer model to be printed and corresponding line layer parameter information corresponding to the second target display image in the overlapping area based on the first line layer model to be printed in the overlapping area; Determine the second line layer model to be printed and the corresponding line layer parameter information in the non-overlapping area according to the second refraction viewing angle range and the second target display image and based on the second line layer model to be printed and the corresponding line layer parameter information corresponding to the second target display image in the overlapping area; The second line layer model to be printed and the corresponding second printing parameter information are determined based on the second line layer model to be printed and the corresponding line layer parameter information in the overlapping area, and the second line layer model to be printed and the corresponding line layer parameter information in the non-overlapping area. The second printing parameter information includes the shape, length, thickness, arrangement, line layer spacing and matching angles of each line layer of the second line layer model to be printed.

[0007] In one embodiment, according to the second refraction viewing angle range, the step of determining the second line layer model to be printed and the corresponding line layer parameter information corresponding to the second target display image in the overlapping area based on the first line layer model to be printed in the overlapping area comprises: Determining line layer parameter information of the overlapping line layer model between the second line layer model to be printed and the first line layer model to be printed in the overlapping area according to the second refraction viewing angle range; Determine the area where the non-overlapping line layer model between the second line layer model to be printed and the first line layer model to be printed is located in the overlapping area; Based on the first line layer model to be printed in the area where the non-coinciding line layer is located, the corresponding line layer parameter information is adjusted according to the second refraction viewing angle range to serve as the second line layer model to be printed in the area where the non-coinciding line layer model is located.

[0008] In one embodiment, the 3D printing method further comprises: When it is determined that the target printing material is not located within the preset position range, a paper conveying instruction is generated and sent to the paper conveying platform, so that the paper conveying platform conveys the target printing material to the preset position range.

[0009] In addition, a printing device for a refractionally variable image is also provided, wherein the refractionally variable image includes a first target display image in a first refraction viewing angle range and a second target display image in a second refraction viewing angle range, and the printing device includes: A control model generating unit, configured to generate a printing data control model of a refraction-variable image according to a first preset refraction viewing angle range, a first target display image, a second preset refraction viewing angle range, and a second target display image; A positioning instruction generating unit, used for generating a substrate positioning instruction after acquiring a printing data control model; A positioning data acquisition unit, used to acquire positioning data of a target substrate according to a substrate positioning instruction; A position determination unit, used to determine whether the target printing material is located within a preset position range according to the positioning data; A printing instruction generating unit, used to generate a printing instruction according to a printing data control model when it is determined that the target substrate is located within a preset position range; An image generating unit, used for spraying a preset spraying material onto the target substrate according to the spraying instruction, so as to obtain a preliminary printed product including a spraying layer; A pre-curing unit, used for performing preliminary pre-curing treatment on the sprayed layer to control the leveling property of the sprayed material, and obtaining a pre-cured printed product; The full curing unit is used to perform full curing treatment on the pre-cured printed product to obtain a printed product containing the refractable image.

[0010] In one embodiment, the control model generation unit includes: A first parameter generating subunit is used to determine a first line layer model to be printed and corresponding first printing parameter information according to a first refraction viewing angle range and a first target display image, wherein the first printing parameter information includes a shape, a length, a thickness, an arrangement mode, a line layer spacing, and a matching angle of each line layer of the first line layer model to be printed; The second parameter generating subunit is used to calculate and match the corresponding second line layer model to be printed and the corresponding second printing parameter information based on the first line layer model to be printed and the corresponding first printing parameter information, in combination with the second refraction angle range and the second target display image, wherein the second printing parameter information includes the shape, length, thickness, arrangement mode, line layer spacing and matching angles of each line layer of the second line layer model to be printed; The data file generating subunit is used to generate a printing data control model according to the first printing parameter information and the second printing parameter information.

[0011] In addition, a 3D printing system capable of refracting a variable image is provided, comprising: A digital control processor, configured to generate a printing data control model of a refraction-variable image according to a first preset refraction viewing angle range, a first target display image, a second preset refraction viewing angle range, and a second target display image, and to generate a substrate positioning instruction after acquiring the printing data control model; The paper positioning device is electrically connected to the digital control processor, and is used to receive a substrate positioning instruction sent by the digital control processor, position the target substrate according to the substrate positioning instruction, generate positioning data of the target substrate, and send it to the digital control processor; The digital control processor is also used to determine whether the target printing material is located within a preset position range according to the positioning data, and when it is determined that the target printing material is located within the preset position range, generate a printing instruction according to the printing data control model; The inkjet system is electrically connected to the digital control processor, and is used to receive the printing instruction sent by the digital control processor, spray the preset spray material to the target substrate, and obtain a preliminary printed product including the spray layer. When the spraying is completed, a printing instruction execution completion signal is generated and sent to the digital control processor; The digital control processor is also used to generate a pre-curing instruction and send it to the pre-curing device according to the completion signal of the printing instruction execution; The pre-curing device is used to perform preliminary pre-curing treatment on the sprayed layer according to the pre-curing instruction to control the leveling property of the sprayed material, obtain a pre-cured printed product, and generate a preliminary pre-curing treatment completion signal; The digital control processor is also used to receive a preliminary pre-curing process completion signal returned by the pre-curing device and generate a full curing process instruction; The full-curing device is electrically connected to the digital control processor, and is used to receive the full-curing instruction electrically sent by the digital control processor, and perform full-curing processing on the pre-cured printed product according to the full-curing instruction to obtain a printed product containing a refractable image.

[0012] In addition, a terminal device is also provided, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the steps of the above-mentioned 3D printing method are implemented when the computer program is executed by the processor.

[0013] In addition, a storage medium is provided, on which a computer program is stored, and the computer program is executed by a processor to perform the steps of the above-mentioned 3D printing method.

[0014] The above-mentioned 3D printing method of a refractive-variable image, the refractive-variable image includes a first target display image under a first refractive angle range and a second target display image under a second refractive angle range, the printing method includes generating a printing data control model of the refractive-variable image according to a first preset refractive angle range, the first target display image, the second preset refractive angle range and the second target display image configuration, after obtaining the printing data control model, generating a substrate positioning instruction, according to the substrate positioning instruction, obtaining positioning data of the target substrate, according to the positioning data, judging whether the target substrate is located within the preset position range, when judging that the target substrate is located within the preset position range, generating a printing instruction according to the printing data control model, according to the printing instruction, spraying a preset spraying material onto the target substrate to obtain a preliminary printed product including a spray layer, performing a preliminary pre-curing treatment on the spray layer to control the leveling property of the spraying material to obtain a pre-cured printed product, and performing a full curing treatment on the pre-cured printed product to obtain a printed product including the refractive-variable image, which can reduce the complexity of the process and realize batch 3D printing of refractive-variable images. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the steps of a 3D printing method for a refractable image in an embodiment of the present application; Figure 2 A schematic diagram of a first target display image in different refraction viewing angle ranges in an embodiment of the present application; Figure 3 This is a schematic diagram of an embodiment of the present application in which the first target display image and the second target display image are both Chinese character images; Figure 4 A schematic diagram of the steps of a method for generating a printing data control model for a refractable image in an embodiment of the present application; Figure 5 A schematic diagram of the method steps for calculating and matching the corresponding second line layer model to be printed and the corresponding second printing parameter information in one embodiment of the present application; Figure 6 A schematic diagram of the steps of a method for determining a second line layer model to be printed and corresponding line layer parameter information corresponding to a second target display image in an overlapping area in an embodiment of the present application; Figure 7 for Figure 6 A schematic diagram of the method steps for determining a second line layer model to be printed and corresponding line layer parameter information corresponding to a second target display image in an overlapping area in an embodiment shown; Figure 8 A schematic product diagram of a printed product including a refractable image obtained by using the 3D printing method of the refractable image of the present invention and displaying a first target display image in an embodiment of the present invention; Fig. 9 A schematic product diagram of a printed product including a refractable image obtained by using the 3D printing method of the refractable image of the present invention and displaying a second target display image in an embodiment of the present invention; Fig.10 A schematic diagram of a printing device for a refractable image in an embodiment of the present application; Fig.11 This is a block diagram of the internal structure of a control model generation unit in one embodiment of the present application; Fig.12 This is a schematic structural diagram of a 3D printing system capable of refracting a variable image in one embodiment of the present application; Fig.13 This is a schematic block diagram of the internal structure of a terminal device according to an embodiment of the present application.

[0016] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0017] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0018] In addition, if the descriptions of "first", "second", etc. are involved in this application, they are only used for descriptive purposes (such as for distinguishing the same or similar elements), and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0019] As shown Figure 1 in the figure, a 3D printing method for a refractive index changeable image, the refractive index changeable image includes a first target display image under a first refractive index viewing angle range and a second target display image under a second refractive index viewing angle range, and the 3D printing method includes: Step S110, configure and generate a printing data control model for the refractive index changeable image according to the first preset refractive index viewing angle range, the first target display image, the second preset refractive index viewing angle range, and the second target display image.

[0020] The refractive index changeable image displays different images within different refractive index viewing angle ranges, displays the first target display image within the first preset refractive index viewing angle range, and displays the second target display image within the second preset refractive index viewing angle range.

[0021] In this embodiment, the first preset refractive index viewing angle range and the second preset refractive index viewing angle range do not overlap, the first refractive index viewing angle range is 45 to 120 degrees, and the second refractive index viewing angle range is 130 to 170 degrees.

[0022] In one embodiment, both the first target display image and the second target display image are character images, such as Chinese character images.

[0023] In one embodiment, the Chinese character image is "Ju", and the first target display image within different refractive index viewing angle ranges is as Figure 2 shown

[0024] In one embodiment, both the second target display image and the first target display image are Chinese character images. For example, take the first target display image "Ju" and the second target display image "Jin" as an example.

[0025] It should be noted that both the first target display image and the second target display image are target display images of the same format and size.

[0026] In this example, both the characters "Ju" and "Jin" are Chinese character images of the same font and the same size, for the convenience of comparing the two, as Figure 3 shown

[0027] In this embodiment, after obtaining the first preset refractive index viewing angle range, the first target display image, the second preset refractive index viewing angle range, and the second target display image, the printing data control model for generating the refractive index changeable image can be further configured.

[0028] Step S120, when the printing data control model is obtained, generate a substrate positioning instruction.

[0029] After the digital control processor obtains the printing data control model, it can further generate a substrate positioning instruction.

[0030] Step S130, acquiring positioning data of the target substrate according to the substrate positioning instruction.

[0031] During the printing process, the target substrate needs to be kept in a suitable and correct position. The substrate positioning instruction includes the positioning data of the target substrate. Therefore, the positioning data of the target substrate can be obtained according to the substrate positioning instruction.

[0032] Step S140: determining whether the target printing object is located within a preset position range according to the positioning data.

[0033] The target printing material usually needs to be placed within a certain preset position range. After obtaining the positioning data, it can be further determined whether the target printing material is located within the preset position range.

[0034] Step S150, when it is determined that the target printing material is located within the preset position range, a printing instruction is generated according to the printing data control model.

[0035] Step S160, spraying a preset spraying material onto a target substrate according to the spraying instruction to obtain a preliminary printed product including a spraying layer.

[0036] In one embodiment, the preset spraying material is ink.

[0037] Step S170, performing preliminary pre-curing treatment on the sprayed layer to control the leveling property of the sprayed material, and obtaining a pre-cured printed product.

[0038] Among them, the initial pre-curing treatment usually uses LED ultraviolet lamps for irradiation to control the leveling of the spraying material and obtain pre-cured printed products.

[0039] In one embodiment, the control accuracy of the leveling property is 450 DPI.

[0040] Step S180 , performing full curing treatment on the pre-cured printed product to obtain a printed product containing a refractable image.

[0041] In this embodiment, the full curing treatment is usually performed using a UV mercury lamp.

[0042] Compared with the traditional method of using complex processes such as molds, molding, positioning, and die-cutting, and using output files as the production basis and using inkjet to produce finished products, the above-mentioned 3D printing method of refractive index-changing images can directly output refractive index-changing images on various special materials such as paper, film, and leather by printing. The process is simple, the complexity of the process can be reduced, and batch 3D printing of refractive index-changing images can be achieved, thereby reducing economic costs.

[0043] In one embodiment, as Figure 4 shown, step S110 includes: Step S112, determining a first line layer model to be printed and corresponding first printing parameter information according to a first refractive viewing angle range and a first target display image, where the first printing parameter information includes the shape, length, thickness, arrangement, line layer spacing, and matching angle of each line layer of the first line layer model to be printed.

[0044] In one embodiment, the first target display image is a Chinese character image. To display the first target display image within the first refractive viewing angle range, it is necessary to configure the shape, length, thickness, arrangement, line layer spacing, and matching angle of each line layer of the first line layer model to be printed.

[0045] Among them, the shape of the first line layer model to be printed is related to the Chinese character image itself, the length of the first line layer model to be printed is related to the size of the first target display image itself, the thickness and line layer spacing of the first line layer model to be printed are related to the first refractive viewing angle range, and the arrangement and matching angle of each line layer of the first line layer model to be printed are comprehensively affected by the first refractive viewing angle range and the first target display image.

[0046] Step S114, based on the first line layer model to be printed and the first printing parameter information, calculating and matching a corresponding second line layer model to be printed and corresponding second printing parameter information in combination with a second refractive viewing angle range and a second target display image, where the second printing parameter information includes the shape, length, thickness, arrangement, line layer spacing, and matching angle of each line layer of the second line layer model to be printed.

[0047] Step S116, establishing a printing data control model for a refractive changeable image according to the first line layer model to be printed and the corresponding first printing parameter information, and the second line layer model to be printed and the corresponding second printing parameter information.

[0048] In one embodiment, as Figure 5 shown, step S114 includes: Step S114a, comparing the second target display image with the first target display image to determine the overlapping area and non-overlapping area between the two.

[0049] In one embodiment, both the second target display image and the first target display image are Chinese character images. For example, taking the first target display image "Ju" and the second target display image "Jin" as an example, the two characters can be compared to determine the overlapping area and non-overlapping area between the two.

[0050] It should be noted that both the first target display image and the second target display image are target display images of the same format and size.

[0051] In this example, the Chinese characters "Ju" and "Jin" are both Chinese character images in the same font and the same size, facilitating the comparison between the two.

[0052] In this embodiment, when the images are all Chinese character images, when determining the overlapping area and non-overlapping area between the two, in some areas, the stroke trends need to be combined to make the strokes of the two coincide as much as possible.

[0053] For example, for the Chinese characters "Ju" and "Jin", the vertical stroke of the "Zouzhi" radical of the character "Jin" is simplified to a vertical stroke to coincide as much as possible with the vertical stroke part of the "Danren" radical of the character "Ju", and the horizontal stroke part of the "Jing" character of the character "Jin" coincides as much as possible with the internal horizontal stroke part on the upper side of the "Ju" part of the character "Ju".

[0054] Step S114b: According to the second refraction viewing angle range, based on the first to-be-printed line layer model in the overlapping area, determine the second to-be-printed line layer model corresponding to the second target display image in the overlapping area and the corresponding line layer parameter information.

[0055] In this embodiment, in the overlapping area, based on the first to-be-printed line layer model, it is necessary to further adjust the first to-be-printed line layer model and the corresponding line layer parameter information according to the second refraction viewing angle range to determine the second to-be-printed line layer model corresponding to the second target display image in the overlapping area and the corresponding line layer parameter information.

[0056] Step S114c: According to the second refraction viewing angle range and the second target display image, based on the second to-be-printed line layer model corresponding to the second target display image in the overlapping area and the corresponding line layer parameter information, determine the second to-be-printed line layer model and the corresponding line layer parameter information in the non-overlapping area.

[0057] In this embodiment, the second to-be-printed line layer model corresponding to the second target display image in the overlapping area needs to be connected and combined with the second to-be-printed line layer model in the non-overlapping area to display the second target display image in combination. It is necessary to consider the line layer matching angle between the two, the second refraction viewing angle range, and the second target display image itself. The second refraction viewing angle range and the second target display image determine the shape, length, thickness, arrangement, line layer spacing, and each line layer matching angle of the line layer model in the second to-be-printed line layer model in the non-overlapping area. Step S114d: According to the second to-be-printed line layer model and the corresponding line layer parameter information in the overlapping area, and the second to-be-printed line layer model and the corresponding line layer parameter information in the non-overlapping area, determine the second to-be-printed line layer model and the corresponding second printing parameter information. The second printing parameter information includes the shape, length, thickness, arrangement, line layer spacing, and each line layer matching angle of the second to-be-printed line layer model.

[0058] In one embodiment, as Figure 6 shown, step S114b includes: Step S114b1, according to the second refractive viewing angle range, determine the line layer parameter information of the overlapping line layer between the second line layer model to be printed and the first line layer model to be printed in the overlapping area.

[0059] In one embodiment, for example, taking the characters "ju" and "jin" as an example, as Figure 7 shown, Figure 7 in the overlapping area, the parameters of the overlapping line layer between the second line layer model to be printed and the first line layer model to be printed are slightly adjusted relative to the first line layer parameter information corresponding to the first line layer model to be printed. According to the second refractive viewing angle range, in the T1 area (taking one of the areas T1 as an example) in the overlapping area in the figure, it is necessary to modify the first line layer model to be printed, for example, make appropriate changes to the thickness and the line layer spacing. In Figure 7 the T2 area in the overlapping area, the first line layer model to be printed and the corresponding line layer parameter information are kept unchanged.

[0060] Among them, Figure 7 in step S114b2 of the overlapping area, determine the area where the non-overlapping line layers are located between the second line layer model to be printed and the first line layer model to be printed in the overlapping area.

[0061] Step S114b3, based on the first line layer model to be printed in the area where the non-overlapping line layers are located, according to the second refractive viewing angle range, adjust the line layer parameter information to be used as the second line layer model to be printed in the area where the non-overlapping line layers are located.

[0062] In one embodiment, for example, taking the characters "ju" and "jin" as an example, the area where the non-overlapping line layers are located between the second line layer model to be printed and the first line layer model to be printed in the overlapping area is exemplified as Figure 7 shown in the T3 area in (taking one of the areas as an example). At this time, based on the first line layer model to be printed in the area where the non-overlapping line layers are located, according to the second refractive viewing angle range, adjust the corresponding line layer parameter information and use it as the second line layer model to be printed in the area where the non-overlapping line layers are located to satisfy the display of the corresponding partial structure of the character "jin" within the second refractive viewing angle range. Among them, the overlapping line layers and non-overlapping line layers at other positions in the characters "ju" and "jin" are set in a similar manner to ensure the display of the first target display image within the first refractive viewing angle range and the display of the second target display image within the second refractive viewing angle range.

[0063] In one embodiment, a printed product containing a refractive changeable image printed by the above 3D printing method is as Figure 8 shown and Fig. 9As shown, the first target display image "Ju" is displayed within the first viewing angle range, and the second target display image "Jin" is displayed within the second viewing angle range.

[0064] In one embodiment, the above 3D printing method further includes: When it is determined that the target printing substrate is not within the preset position range, a paper transportation instruction is generated and sent to the paper transportation platform, so that the paper transportation platform transports the target printing substrate to within the preset position range.

[0065] In addition, as Fig.10 shown, there is also provided a printing device 200 for a refractive index changeable image. The refractive index changeable image includes a first target display image under a first refractive index viewing angle range and a second target display image under a second refractive index viewing angle range. The printing device 200 includes: A control model generation unit 210, configured to configure and generate a printing data control model for the refractive index changeable image according to a first preset refractive index viewing angle range, a first target display image, a second preset refractive index viewing angle range, and a second target display image; A positioning instruction generation unit 220, configured to generate a printing substrate positioning instruction when the printing data control model is obtained; A positioning data acquisition unit 230, configured to acquire the positioning data of the target printing substrate according to the printing substrate positioning instruction; A position judgment unit 240, configured to judge whether the target printing substrate is within the preset position range according to the positioning data; An inkjet printing instruction generation unit 250, configured to generate an inkjet printing instruction according to the printing data control model when it is judged that the target printing substrate is within the preset position range; An image generation unit 260, configured to spray a preset spraying material onto the target printing substrate according to the inkjet printing instruction to obtain a preliminary printed image; A pre-curing unit 270, configured to perform a preliminary pre-curing treatment on the sprayed layer to control the leveling property of the spraying material, and obtain a pre-cured printed product; A full-curing unit 280, configured to perform a full-curing treatment on the pre-cured printed product to obtain a printed product including a refractive index changeable image.

[0066] In one embodiment, as Fig.11 shown, the control model generation unit 210 includes: A first parameter generation sub-unit 212, configured to determine a first to-be-printed line layer model and corresponding first printing parameter information according to the first refractive index viewing angle range and the first target display image. The first printing parameter information includes the shape, length, thickness, arrangement mode, line layer spacing, and matching angle of each line layer of the first to-be-printed line layer model; The second parameter generating subunit 214 is used to calculate and match the corresponding second line layer model to be printed and the second printing parameter information based on the first line layer model to be printed and the first printing parameter information, in combination with the second refraction angle range and the second target display image, wherein the second printing parameter information includes the shape, length, thickness, arrangement, line layer spacing and matching angles of each line layer of the second line layer model to be printed; The data file generating subunit 216 is used to generate a printing data control model according to the first printing parameter information and the second printing parameter information.

[0067] In addition, if Fig.12 As shown, a 3D printing system 300 capable of refracting a variable image is also provided, comprising: The digital control processor 310 is used to generate a printing data control model of a refraction-variable image according to the first preset refraction angle range, the first target display image, the second preset refraction angle range and the second target display image configuration, and generate a substrate positioning instruction after acquiring the printing data control model; The paper positioning device 320 is electrically connected to the digital control processor 310, and is used to receive the substrate positioning instruction sent by the digital control processor 310, position the target substrate according to the substrate positioning instruction, generate the positioning data of the target substrate and send it to the digital control processor 310; The digital control processor 310 is also used to determine whether the target printing material is located within the preset position range according to the positioning data, and when it is determined that the target printing material is located within the preset position range, generate a printing instruction according to the printing data control model; The inkjet system 330 is electrically connected to the digital control processor 310, and is used to receive the printing instruction sent by the digital control processor 310, spray the preset spray material to the target substrate, and obtain a preliminary printed product including the spray layer. When the spraying is completed, a printing instruction execution completion signal is generated and sent to the digital control processor 310; The digital control processor 310 is also used to generate a pre-curing instruction and send it to the pre-curing device 340 according to the completion signal of the printing instruction execution; The pre-curing device 340 is used to perform preliminary pre-curing treatment on the spray layer according to the pre-curing instruction to control the leveling property of the spray material, obtain a pre-cured printed product, and generate a preliminary pre-curing treatment completion signal; The digital control processor 310 is also used to receive a preliminary pre-curing process completion signal returned by the pre-curing device 340 and generate a full curing process instruction; The full-curing device 350 is electrically connected to the digital control processor 310, and is used to receive the full-curing instruction electrically sent by the digital control processor 310, and perform full-curing processing on the pre-cured printed product according to the full-curing instruction to obtain a printed product containing a refractable image.

[0068] In addition, a terminal device is also provided in an embodiment of the present application. The internal structure of the terminal device can be as follows: Fig.13 As shown. The terminal device includes a processor, a memory, a communication interface and a database connected via a system bus. The processor is used to provide computing and control capabilities. The memory of the terminal device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the terminal device is used to store data called by the computer program. The communication interface of the terminal device is used to communicate data with an external terminal. The input device of the terminal device is used to receive a signal input by an external device. When the computer program is executed by the processor, a 3D printing method as in the above embodiment is implemented.

[0069] Those skilled in the art will understand that Fig.13 The structure shown in is merely a block diagram of a portion of the structure related to the solution of the present application, and does not constitute a limitation on the terminal device to which the solution of the present application is applied.

[0070] In addition, the present application also proposes a storage medium, the storage medium includes a computer program, and when the computer program is executed by a processor, the steps of the 3D printing method in the above embodiment are implemented. It can be understood that the storage medium in this embodiment can be a volatile storage medium or a non-volatile storage medium.

[0071] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media provided in this application and used in the embodiments may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (SSRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0072] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, device, article or method including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, device, article or method. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, device, article or method including the element.

[0073] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A 3D printing method for a refractive image, characterized in that: The refractionally variable image comprises a first target display image in a first refraction viewing angle range and a second target display image in a second refraction viewing angle range, and the printing method comprises: A printing data control model for generating a refraction-variable image according to a first preset refraction viewing angle range, a first target display image, a second preset refraction viewing angle range, and a second target display image configuration; After obtaining the printing data control model, generating a substrate positioning instruction; According to the substrate positioning instruction, obtaining positioning data of the target substrate; According to the positioning data, determining whether the target printing object is located within a preset position range; When it is determined that the target printing material is located within a preset position range, generating a printing instruction according to the printing data control model; According to the printing instruction, spraying a preset spraying material onto the target substrate to obtain a preliminary printed product including a spraying layer; Performing a preliminary pre-curing treatment on the sprayed layer to control the leveling property of the sprayed material, thereby obtaining a pre-cured printed product; The pre-cured printed product is fully cured to obtain a printed product containing the refractile-variable image.

2. The 3D printing method according to claim 1, characterized in that: The step of configuring and generating a printing data control model for a refraction-variable image according to the first preset refraction viewing angle range, the first target display image, the second preset refraction viewing angle range, and the second target display image comprises: Determine a first line layer model to be printed and corresponding first printing parameter information according to the first refraction viewing angle range and the first target display image, wherein the first printing parameter information includes the shape, length, thickness, arrangement, line layer spacing and matching angles of each line layer of the first line layer model to be printed; Based on the first line layer model to be printed and the first printing parameter information, the corresponding second line layer model to be printed and the corresponding second printing parameter information are calculated and matched in combination with the second refraction angle range and the second target display image, wherein the second printing parameter information includes the shape, length, thickness, arrangement, line layer spacing and matching angles of each line layer of the second line layer model to be printed; A printing data control model of the refractable image is established according to the first line layer model to be printed and the second line layer model to be printed.

3. The 3D printing method according to claim 2, characterized in that: The step of calculating and matching the corresponding second line layer model to be printed and the second printing parameter information based on the first line layer model to be printed and the first printing parameter information in combination with the second refraction angle range and the second target display image, wherein the second printing parameter information includes the shape, length, thickness, arrangement, line layer spacing and matching angles of each line layer of the second line layer model to be printed comprises: Comparing the second target display image with the first target display image to determine overlapping areas and non-overlapping areas therebetween; Determine, according to the second refraction viewing angle range, a second line layer model to be printed and corresponding line layer parameter information corresponding to the second target display image in the overlapping area based on the first line layer model to be printed in the overlapping area; According to the second refraction viewing angle range and the second target display image, based on the second line layer model to be printed and the corresponding line layer parameter information corresponding to the second target display image in the overlapping area, determine the second line layer model to be printed and the corresponding line layer parameter information in the non-overlapping area; The second line layer model to be printed and the corresponding second printing parameter information are determined based on the second line layer model to be printed and the corresponding line layer parameter information in the overlapping area, and the second line layer model to be printed and the corresponding line layer parameter information in the non-overlapping area. The second printing parameter information includes the shape, length, thickness, arrangement, line layer spacing and matching angles of each line layer of the second line layer model to be printed.

4. The 3D printing method according to claim 3, characterized in that: The step of determining the second line layer model to be printed and the corresponding line layer parameter information corresponding to the second target display image in the overlapping area based on the first line layer model to be printed in the overlapping area according to the second refraction viewing angle range comprises: Determining line layer parameter information of a line layer model overlapped between the second line layer model to be printed and the first line layer model to be printed in the overlapped area according to the second refraction viewing angle range; Determine an area where non-overlapping line layer models are located between the second line layer model to be printed and the first line layer model to be printed in the overlapping area; Based on the first line layer model to be printed in the area where the non-coinciding line layer is located, the corresponding line layer parameter information is adjusted according to the second refraction viewing angle range to serve as the second line layer model to be printed in the area where the non-coinciding line layer model is located.

5. The 3D printing method according to claim 1, characterized in that: Also includes: When it is determined that the target printing material is not located within the preset position range, a paper conveying instruction is generated and sent to the paper conveying platform, so that the paper conveying platform conveys the target printing material to the preset position range.

6. A printing device capable of printing images with refractive index, characterized in that: The refraction-variable image includes a first target display image in a first refraction viewing angle range and a second target display image in a second refraction viewing angle range, and the printing device includes: A control model generating unit, configured to generate a printing data control model of a refraction-variable image according to a first preset refraction viewing angle range, a first target display image, a second preset refraction viewing angle range, and a second target display image; A positioning instruction generating unit, used for generating a substrate positioning instruction after acquiring the printing data control model; A positioning data acquisition unit, used to acquire positioning data of a target substrate according to the substrate positioning instruction; A position determination unit, used for determining whether the target printing object is located within a preset position range according to the positioning data; A printing instruction generating unit, configured to generate a printing instruction according to the printing data control model when it is determined that the target substrate is located within a preset position range; An image generating unit, used for spraying a preset spraying material onto the target substrate according to the printing instruction to obtain a preliminary printed image; A pre-curing unit, used for performing preliminary pre-curing treatment on the sprayed layer to control the leveling property of the sprayed material, and obtaining a pre-cured printed product; The full curing unit is used to perform full curing treatment on the pre-cured printed product to obtain a printed product containing the refractable image.

7. The printing device according to claim 6, characterized in that: The control model generating unit comprises: A first parameter generating subunit is used to determine a first line layer model to be printed and corresponding first printing parameter information according to a first refraction viewing angle range and a first target display image, wherein the first printing parameter information includes a shape, a length, a thickness, an arrangement mode, a line layer spacing, and a matching angle of each line layer of the first line layer model to be printed; A second parameter generating subunit is used for calculating and matching a corresponding second line layer model to be printed and second printing parameter information based on the first line layer model to be printed and the first printing parameter information, in combination with a second refraction viewing angle range and a second target display image, wherein the second printing parameter information includes the shape, length, thickness, arrangement, line layer spacing, and matching angles of each line layer of the second line layer model to be printed; The data file generating subunit is used to generate the printing control data file according to the first printing parameter information and the second printing parameter information.

8. A 3D printing system capable of refracting images, characterized in that: include: A digital control processor, configured to generate a printing data control model of a refraction-variable image according to a first preset refraction viewing angle range, a first target display image, a second preset refraction viewing angle range, and a second target display image, and to generate a substrate positioning instruction after acquiring the printing data control model; A paper positioning device, electrically connected to the digital control processor, for receiving the substrate positioning instruction sent by the digital control processor, positioning the target substrate according to the substrate positioning instruction, generating positioning data of the target substrate and sending it to the digital control processor; The digital control processor is also used to determine whether the target printing object is located within a preset position range according to the positioning data, and when it is determined that the target printing object is located within the preset position range, generate a printing instruction according to the printing data control model; An inkjet system, electrically connected to the digital control processor, for receiving a printing instruction sent by the digital control processor, spraying a preset spraying material onto the target substrate to obtain a preliminary printed product including a spray layer, and after spraying is completed, generating a printing instruction execution completion signal and sending it to the digital control processor; The digital control processor is also used to generate a pre-curing instruction and send it to the pre-curing device according to the completion signal of the printing instruction execution; The pre-curing device is used to perform a preliminary pre-curing treatment on the spray layer according to the pre-curing instruction to control the leveling property of the spray material, obtain a pre-cured printed product, and generate a preliminary pre-curing treatment completion signal; The digital control processor is also used to receive the preliminary pre-curing process completion signal returned by the pre-curing device and generate a full curing process instruction; A full-curing device is electrically connected to the digital control processor, and is used to receive a full-curing instruction electrically sent by the digital control processor, and perform a full-curing process on the pre-cured printed product according to the full-curing instruction to obtain a printed product containing the refractable image.

9. A terminal device, characterized in that: The terminal device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the steps of the 3D printing method according to any one of claims 1 to 5 when executed by the processor.

10. A storage medium, characterized in that: The storage medium stores a computer program, which, when executed by a processor, implements the steps of the 3D printing method according to any one of claims 1 to 5.

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