Full-color printing device and printing method

Abstract

The invention discloses a full-color printing device and a printing method. The full-color printing device comprises a moving shaft mechanism, a scanning printing mechanism, a 3D component and a supporting mechanism. A scanning printing mechanism is connected to the moving shaft mechanism, the supporting mechanism can support the 3D component, the moving shaft mechanism can drive the scanning printing mechanism to conduct full-color printing on the surface of the 3D component, and at least one set of spray heads are arranged on the scanning printing mechanism. The 3D component manufacturing device has the beneficial effects that a 3D component with the precision being 1-2 mm can be rapidly manufactured in a traditional mode, the moving shaft mechanism is used for driving the scanning and printing mechanism to conduct scanning and full-color printing on the surface layer of the 3D component, the printing time can be greatly shortened, the cost is reduced, the process is simple, operation is convenient and fast, and the 3D component manufacturing device is suitable for large-scale popularization and application. And no pollution is caused.

Description

Technical Field

[0001] The present invention relates to the technical field of full-color printing, in particular to a full-color printing device and a printing method. Background Art

[0002] As the demand for customization and personalization becomes stronger and stronger, 3D printing is increasingly widely used in all walks of life due to its flexibility and timeliness. People have put forward higher requirements for the technology of 3D printers, that is, high precision and fast speed. At the same time, with the continuous development of social science and technology and economic level, people's pursuit of material and spiritual life is getting higher and higher. They are no longer satisfied with having or not having or simply increasing the quantity, but are increasingly pursuing the improvement of quality and the demand for personalization. For household items used to improve life in life, the pursuit of personalized accessories by young people, and the demand of children for unique and exclusive creative toys, there is currently a lack of mature and economical technology in the market to solve the relevant market demand. For such products, the requirements for 3D printing will not only be a 3D configuration, a rough, monotonous or dull surface, or a mosaic of a few colors, but also rich colors, exquisite surfaces and high precision.

[0003] Existing building material processing methods: engraving based on CNC machine tool cutting. This solution cannot achieve full color. It only cuts the material itself. The color of the outer surface is determined by the material itself. For high-precision (such as 20-micron precision) 3D component processing, the high-precision part needs to be realized in the form of point carving, resulting in a very slow overall speed.

[0004] Existing additive manufacturing methods: melt extrusion molding, melt extrusion-based 3D layer-by-layer printing or other non-inkjet layer-by-layer printing methods are also unable to achieve full color. The outer surface color is either monochrome or can only achieve a mosaic pattern of more than ten colors at most, and cannot achieve a photo-level rich color pattern. In addition, for high-precision (such as 20 micron precision) 3D component processing, a very fine nozzle is required, resulting in a very slow printing speed.

[0005] In existing photocuring, bright materials are cured regionally by ultraviolet light according to a set program and stacked layer by layer to form 3D components. This method can basically only achieve monotonous colors, cannot achieve full color, and the printing speed is very slow.

[0006] The existing 3D color inkjet printing, for small batches or even single production, only has this method that can achieve full color. This method generally achieves 3D full color configuration by stacking light-cured UV ink layer by layer, but this method is very slow and expensive to use, and requires a lot of follow-up processes after printing. This solution is represented by Stratasys in the United States and Mimaki in Japan.

[0007] All other solutions except 3D color inkjet printing are difficult to achieve full color, and for the situation where the accuracy needs to reach 20 microns, these solutions are relatively slow; for 3D color inkjet printing, this solution can fully achieve full color, and the accuracy is also no problem, but its speed is very slow, for a 20cm high doll, the whole process takes 20 hours, and the cost of use is also high, one device is at least 400,000 yuan, and the related consumables (mainly ink) are close to 2,000 yuan per liter. In addition, because it is stacked up layer by layer, layer lines will be produced. In order to eliminate the layer lines, subsequent processes such as polishing and varnishing are not allowed after the printing is completed. At the same time, this kind of 3D printing technology generally requires the use of sacrificial materials (ink that can be degraded after light curing), which generally requires strong acids and alkalis or chemical solutions with strong chemical activity. This step generally involves manual operation and has potential hazards to personnel and potential pollution to the environment; such slow speed and high cost seriously restrict the commercial application of the equipment; for this reason, the inventor has designed a full-color 3D printing technology that can print quickly. Summary of the invention

[0008] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0009] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0010] Therefore, the purpose of the present invention is to provide a full-color printing device, which provides a fast, economical and easier-to-operate full-color 3D additive and subtractive material realization device based on 3D curved surface printing. Our device also realizes a 20 cm hand-made model, which can be completed within 30-60 minutes. Compared with the current solution that can realize 3D full-color printing in more than 20 hours, it can achieve an improvement of one to two orders of magnitude. For some specific situations, it is even expected to be realized within 10 to 20 minutes, achieving an improvement of more than two orders of magnitude. The consumables we use can achieve a retail price of 100-200 yuan per liter. Compared with the above-mentioned traditional 3D full-color printing realization method, the consumables cost is close to 2,000 yuan per liter, and the cost can also be reduced by one order of magnitude. In addition, through our equipment for processing, there is no need for complex post-processing processes after traditional full-color 3D printing, such as polishing and varnishing, and the need to use harmful chemicals to remove sacrificial materials, and often manual operation is required. Our equipment is simple in process, easy to operate and can be fully automated, which will make it easy for ordinary users without any professional knowledge to use. Combined with the low cost of our equipment consumables and equipment, our equipment will be able to reach ordinary consumers and gain a huge market.

[0011] In order to solve the above technical problems, the present invention provides the following technical solutions: a full-color printing device, which includes a moving axis mechanism, a scanning and printing mechanism, a 3D component, and a supporting mechanism; the moving axis mechanism is connected to the scanning and printing mechanism, the supporting mechanism can support the 3D component, the moving axis mechanism can drive the scanning and printing mechanism to perform full-color printing on the surface of the 3D component, and at least one group of nozzles is arranged on the scanning and printing mechanism.

[0012] As a preferred solution of the full-color printing device of the present invention, the moving axis mechanism can drive the scanning and printing mechanism to perform XYZ three-axis movement.

[0013] As a preferred solution of the full-color printing device of the present invention, the surface of the 3D component is an uneven curved surface.

[0014] As a preferred solution of the full-color printing device of the present invention, the moving axis mechanism includes a rotating axis assembly and a sliding axis assembly; multiple groups of rotating axis assemblies are connected and can be rotated and extended, the rotating axis assembly is provided with a sliding axis assembly, the sliding axis assembly is connected to the scanning and printing mechanism, and the sliding axis assembly can drive the scanning and printing mechanism to move horizontally or vertically.

[0015] As a preferred solution of the full-color printing device of the present invention, wherein: the movable axis mechanism includes a mounting frame, a movable frame assembly, and a sliding lifting assembly; the mounting frame is provided with a movable frame assembly, the movable frame assembly is provided with a sliding lifting assembly, the movable frame assembly can slide on the mounting frame, the sliding lifting assembly can slide and lift on the movable frame assembly, and the sliding lifting assembly is connected to the scanning and printing mechanism.

[0016] As a preferred solution of the full-color printing device of the present invention, wherein: the mobile frame assembly includes a mobile frame and a mobile frame driving mechanism; the mobile frame driving mechanism is arranged on the mounting frame, the mobile frame driving mechanism is connected to the mobile frame, the mobile frame driving mechanism can drive the mobile frame to move, and can guide and limit the mobile frame.

[0017] As a preferred solution of the full-color printing device of the present invention, the sliding and lifting assembly includes a transverse sliding member and a lifting member; the lifting member is arranged on the transverse sliding member, the lifting member can drive the scanning and printing mechanism to move vertically, and the lifting member can move on the transverse sliding member.

[0018] The inventor also provides a full-color printing method, including a full-color printing device, and the following method:

[0019] S1: Processing a 3D component with an accuracy of 1 to 2 mm;

[0020] S2: The scanning and printing mechanism is driven by the moving axis mechanism to scan and print the surface of the 3D component.

[0021] As a preferred solution of the full-color printing method of the present invention, wherein: step S2 includes the following steps, S2-1: firstly, the scanning and printing mechanism is driven by the moving axis mechanism to scan and analyze the 3D component;

[0022] S2-2: Divide the surface roughness of the 3D component into several small printing areas according to the scanning results;

[0023] S2-3: The height difference of the small printing area is no more than 2 cm;

[0024] S2-4: The moving axis mechanism drives the scanning printing mechanism to the top of the designated printing area to perform fine printing in the X and Y directions;

[0025] S2-5: driving the scanning and printing mechanism to print other small printing areas of the 3D component in sequence through the moving axis mechanism;

[0026] S2-6: While printing, the surface of the 3D component can be colored with varnish using a scanning printing mechanism.

[0027] As a preferred solution of the full-color printing method of the present invention, the 3D component can be obtained by mechanical cutting or melt extrusion.

[0028] Beneficial effects of the present invention: The present invention can drive the scanning and printing mechanism to perform XYZ axis 3D printing on the surface of the 3D component through the moving axis mechanism. The technical solution of the present invention can achieve fast printing without the need for grinding and polishing. In terms of processing speed, it can complete a 20cm puppet hand-made model in 30 minutes. Compared with traditional process equipment, the equipment of internationally renowned manufacturers Stratasys and Mimaki takes more than 20 hours, achieving an improvement of 1-2 orders of magnitude. In terms of cost of use, our consumables are 100-200 yuan per liter, while the international manufacturers Stratasys The consumables of Mimaki are close to RMB 2,000 per liter, which reduces the cost of use by more than one order of magnitude. In terms of ease of operation, because international manufacturers Stratasys and Mimaki use layer-by-layer stacking, layer lines are inevitable, and varnish cannot be pre-printed, and supporting sacrificial materials need to be printed. In this way, special chemical reagents are needed to remove the sacrificial materials, and polishing and potential varnish operations are required. Moreover, these links are difficult to complete fully automatically and require manual intervention. Our equipment can complete the relevant operations fully automatically at one time without any subsequent process steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0030] Figure 1 It is an overall schematic diagram of Example 1 of the full-color printing device.

[0031] Figure 2 for Figure 1 Schematic diagram of F1 of the full-color printing device.

[0032] Figure 3 It is an overall schematic diagram of Example 2 of a full-color printing device.

[0033] Figure 4 It is a front view of embodiment 2 of the full-color printing device.

[0034] Figure 5 for Figure 3 Enlarged view of F2 of the full-color printing device.

[0035] Figure 6 Schematic diagram of full-color printing method. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0039] Example 1

[0040] Reference Figures 1-2 , which is the first embodiment of the present invention, provides a full-color printing device, which includes a moving axis mechanism 1, a scanning and printing mechanism 2, a 3D component 3, and a supporting mechanism 4; the scanning and printing mechanism 2 is arranged on the moving axis mechanism 1, and the moving axis mechanism 1 can be used to enable the scanning and printing mechanism 2 to realize XYZ axis movement, thereby performing full-color printing on the surface of the 3D component 3.

[0041] Specifically, it includes a moving axis mechanism 1, a scanning and printing mechanism 2, a 3D component 3, and a supporting mechanism 4; the moving axis mechanism 1 is connected to the scanning and printing mechanism 2, the supporting mechanism 4 can support the 3D component 3, the moving axis mechanism 1 can drive the scanning and printing mechanism 2 to perform full-color printing on the surface of the 3D component 3, and at least one group of nozzles is arranged on the scanning and printing mechanism 2.

[0042] Preferably, the 3D component 3 can be supported by the support mechanism 4.

[0043] Furthermore, the moving axis mechanism 1 can drive the scanning and printing mechanism 2 to perform XYZ three-axis motion.

[0044] Furthermore, the surface of the 3D component 3 is an uneven curved surface.

[0045] Preferably, the 3D component 3 can be processed by conventional mechanical means such as a wood carving machine, a precision carving machine, or by conventional melt extrusion to obtain a 3D component 3 with an accuracy of 1-2 mm.

[0046] Furthermore, the movable axis mechanism 1 includes a rotating axis assembly 11 and a sliding axis assembly 12; multiple groups of rotating axis assemblies 11 are connected and can be rotated and extended. The rotating axis assembly 11 is provided with a sliding axis assembly 12, and the sliding axis assembly 12 is connected to the scanning and printing mechanism 2. The sliding axis assembly 12 can drive the scanning and printing mechanism 2 to move horizontally or vertically.

[0047] Preferably, multiple groups of rotating shaft assemblies 11 can be provided, and by connecting the multiple groups of rotating shaft assemblies 11 to each other, the functions of rotation and steering can be realized, and the extension operation can also be performed at the same time.

[0048] Preferably, the sliding shaft assembly 12 includes a first sliding shaft member and a second sliding shaft member, and the second sliding shaft member is arranged on the first sliding shaft member, and the second sliding shaft member can move on the first sliding shaft member, and the second sliding shaft member is connected to the scanning and printing mechanism 2, and the scanning and printing mechanism 2 can slide on the second sliding shaft member; therefore, the scanning and printing mechanism 2 can move horizontally and vertically, and can be moved to any position in cooperation with the rotating shaft assembly 11, so that full-color printing on the surface of the 3D component 3 is convenient.

[0049] Preferably, the first sliding shaft member and the second sliding shaft member can be driven by a motor and moved by a threaded screw. Of course, the solutions in the prior art can also be used as long as the movement in the directions of the X and Y axes can be achieved.

[0050] Preferably, at least one group of nozzles is provided on the scanning and printing mechanism 2, and each nozzle may be provided with 8 rows of nozzles, with 400 nozzles in each row, for a total of 3200 nozzles. The inkjet rate of each nozzle can reach 40kHz, which greatly improves the printing efficiency.

[0051] It should be noted that the processing of 3D component 3 will be based on different materials. Our equipment can flexibly choose to use cutting subtractive processing or melt extrusion 3D printing with a 2 mm diameter extrusion nozzle to realize this 3D component. Because the progress requirement is not high, for a 20 cm high hand-made model, whether it is wood cutting processing or resin extrusion 3D printing, it can be completed within 25 minutes. Then carry out 3D surface fine printing and 3D curved surface coloring and varnish printing, etc. This process can be completed in 5 minutes. At this point, the whole process takes 30 minutes. In fact, if the 3D configuration is relatively simple, a full-color 3D component product can be completed in 15 minutes. Compared with traditional 3D full-color printing, which generally takes more than 20 hours, it can bring nearly two orders of magnitude 40-80 times speed increase, which will be revolutionary.

[0052] It should be noted that the reason why we only use traditional cutting or traditional 3D printing to achieve 2mm-level 3D components 3, and inkjet printing to achieve 3D precision of about 20 microns is that, whether it is traditional cutting or traditional 3D printing, either a single cutter head or a single nozzle extrusion is used, and it will be slow or even difficult to achieve a precision of 20 microns. Even if it is achieved, the relevant precision processing will account for 90% or even more than 99% of the time of the overall traditional processing method. With our 3D surface printing micro-carving, for example, each nozzle has 8 rows of nozzles, each row has 400 nozzles, a total of 3200 nozzles, and the inkjet rate of each nozzle can reach 40kHz. Compared with traditional processes, this is equivalent to 3200 cutting heads or 3200 extrusion nozzles with a scale of tens of microns working at the same time. This part alone, in extreme cases, is equivalent to 3200 times that of traditional processes. In addition, the nozzle can easily move at a speed of 1.5m / s, which is much faster than the conventional cutting head, which can reach a speed of at most one or two centimeters per second, and much faster than the extrusion 3D printing nozzle, which generally has a speed of at most 0.15m / s.

[0053] It should be noted that the related consumables that can achieve full-color 3D printing on the market are very expensive. For example, the main consumables are as high as about 2,000 yuan per liter. For example, the ink used in Stratasys's inkjet printing UV curing solution must be able to cure quickly under UV light and be well separated from the ink used for sacrificial materials after 3D printing is completed; and for HP's ink for gypsum powder 3D printing, the ink needs to have a special cross-linking agent, and the ink also needs to be able to color the graphite powder evenly. These special requirements will make it difficult to reduce the cost of such inks, while our surface 3D printing can use ordinary UV inks, and such materials are only slightly more than 100 yuan per liter. In addition, the main body within the surface of our 3D component implementation solution uses ordinary hot-melt resin or wood, which is far less than 100 yuan per liter. In this way, compared with traditional full-color 3D printing, such as Stratasys's inkjet printing UV curing solution, the cost of using our solution can be reduced to one twentieth of theirs.

[0054] It should be noted that the process of the present invention is simple, easy to operate, and environmentally friendly;

[0055] We use a process based on 3D surface printing, so there is no need to use sacrificial materials and remove excess plaster, reducing the need to remove such substances in the subsequent steps; at the same time, because unlike traditional 3D printing, which produces layer lines by stacking layers, there is no need for subsequent polishing; and varnish can also be printed at the same time when printing 3D surfaces, so there is no need for subsequent varnishing steps. The whole process can be completed in one go in our equipment, and the process is simple. In addition, in the traditional 3D full-color printing process, strong acids, alkalis or harmful liquid substances are often used in the subsequent processes after printing to remove excess sacrificial materials, and the steps of polishing and varnishing are also prone to produce harmful substances such as dust and smoke. At the same time, these processes involve a lot of complex manual operations that are difficult to automate, such as removing excess sacrificial materials. In this process, you need to be very careful, otherwise the surface of the 3D component may be damaged. Our process does not require these subsequent processes, and will not be exposed to various toxic liquids, smoke and dust that may cause potential hazards in the future. This is why traditional full-color 3D printing equipment and related process equipment must be operated by professionals. Our equipment will be easy to operate and environmentally friendly. It can be easily used by anyone without any professional knowledge background, and even ordinary consumers do not need professional training. It is as easy to operate as using an ordinary home printer.

[0056] In summary, the present invention can quickly make a 3D component with an accuracy of 1-2 mm through traditional methods, and use the movable axis mechanism 1 to drive the scanning and printing mechanism 2 to scan and print the surface of the 3D component 3 in full color. The device can greatly reduce the printing time and reduce the cost. The process is simple, the operation is convenient, and there is no pollution.

[0057] Example 2

[0058] Reference Figure 3-5 , which is the second embodiment of the present invention, provides a full-color printing device, including a moving axis mechanism 1, a scanning and printing mechanism 2, a 3D component 3, and a supporting mechanism 4; the scanning and printing mechanism 2 is arranged on the moving axis mechanism 1, and the moving axis mechanism 1 can be used to enable the scanning and printing mechanism 2 to realize XYZ axis movement, thereby performing full-color printing on the surface of the 3D component 3.

[0059] Specifically, it includes a moving axis mechanism 1, a scanning and printing mechanism 2, a 3D component 3, and a supporting mechanism 4; the moving axis mechanism 1 is connected to the scanning and printing mechanism 2, the supporting mechanism 4 can support the 3D component 3, the moving axis mechanism 1 can drive the scanning and printing mechanism 2 to perform full-color printing on the surface of the 3D component 3, and at least one group of nozzles is arranged on the scanning and printing mechanism 2.

[0060] Preferably, the 3D component 3 can be supported by the support mechanism 4.

[0061] Furthermore, the moving axis mechanism 1 can drive the scanning and printing mechanism 2 to perform XYZ three-axis motion.

[0062] Furthermore, the surface of the 3D component 3 is an uneven curved surface.

[0063] Preferably, the 3D component 3 can be processed by conventional mechanical means such as a wood carving machine, a precision carving machine, or by conventional melt extrusion to obtain a 3D component 3 with an accuracy of 1-2 mm.

[0064] Furthermore, the movable axis mechanism 1 includes a mounting frame 13, a movable frame assembly 14, and a sliding lifting assembly 15; the mounting frame 13 is provided with a movable frame assembly 14, and the movable frame assembly 14 is provided with a sliding lifting assembly 15, the movable frame assembly 14 can slide on the mounting frame 13, the sliding lifting assembly 15 can slide and rise on the movable frame assembly 14, and the sliding lifting assembly 15 is connected to the scanning and printing mechanism 2.

[0065] Preferably, the scanning and printing mechanism 2 can be driven by the movable frame assembly 14 and the sliding and lifting assembly 15 to realize movement in the XYZ axis direction, so that the 3D component 3 can be printed in full color more conveniently.

[0066] Furthermore, the mobile frame assembly 14 includes a mobile frame 141 and a mobile frame driving mechanism 142; the mobile frame driving mechanism 142 is provided on the mounting frame 13, and the mobile frame driving mechanism 142 is connected to the mobile frame 141. The mobile frame driving mechanism 142 can drive the mobile frame 141 to move, and can guide and limit the mobile frame 141.

[0067] Preferably, the mounting frame 13 is also provided with a guiding mechanism, which can guide and limit the movable frame 141, thereby preventing the movable frame 141 from having position deviation when moving on the mounting frame 13, thereby preventing printing failure.

[0068] Preferably, the moving frame driving mechanism 142 can be driven by a threaded screw, or can be driven by a gear rack or other existing driving methods.

[0069] Furthermore, the sliding and lifting assembly 15 includes a transverse sliding member 151 and a lifting member 152 ; the lifting member 152 is disposed on the transverse sliding member 151 , and the lifting member 152 can drive the scanning and printing mechanism 2 to move vertically, and the lifting member 152 can move on the transverse sliding member 151 .

[0070] In summary, the present invention can realize movement in the X direction on the mounting frame 13 through the movable frame assembly 14, can realize movement in the Y direction on the horizontal sliding member 151 through the lifting member 152, and can realize vertical movement with the scanning and printing mechanism 2 through the lifting member 152, so that the scanning and printing mechanism 2 can realize movement in the XYZ directions, and the scanning and printing mechanism 2 is used to print the 3D surface of the 3D component 3. The present device greatly improves work efficiency, saves a lot of time, does not require traditional 3D grinding and polishing, and saves a lot of costs.

[0071] Example 3

[0072] Reference Figures 1 to 6 , which is the third embodiment of the present invention, further provides a full-color printing method based on embodiment 1 or embodiment 2, including a full-color printing device, and the following method,

[0073] S1: First, a 3D component 3 with a precision of 1 to 2 mm is processed;

[0074] Preferably, the 3D component 3 can be obtained by mechanical cutting or melt extrusion.

[0075] S2: The scanning and printing mechanism 2 is driven by the moving axis mechanism 1 to scan and print the surface of the 3D component 3.

[0076] Preferably, the movable axis mechanism 1 can drive the scanning and printing mechanism 2 to realize the movement of the XYZ axis, thereby realizing full-color printing of the 3D component 3 in all directions.

[0077] Further, step S2 includes the following steps,

[0078] S2-1: First, the scanning and printing mechanism 2 is driven by the moving axis mechanism 1 to scan and analyze the 3D component 3;

[0079] S2-2: Divide the surface roughness of the 3D component 3 into several small printing areas according to the scanning results;

[0080] S2-3: The height difference of the small printing area is no more than 2 cm;

[0081] S2-4: The moving axis mechanism 1 drives the scanning printing mechanism 2 to the top of the designated printing small area to perform fine printing in the X and Y directions;

[0082] S2-5: The scanning and printing mechanism 2 is driven by the moving axis mechanism 1 to print other small printing areas of the 3D component 3 in sequence;

[0083] S2-6: While printing, the surface of the 3D component 3 can be colored with varnish using the scanning printing mechanism 2.

[0084] Preferably, processing with our equipment does not require complicated post-processing processes like traditional full-color 3D printing, such as polishing and varnishing, and the use of harmful chemicals to remove sacrificial materials, and often requires manual operation. Our equipment is simple in process and easy to operate, and can be fully automated, so that ordinary users without any professional knowledge can use it easily. Combined with the low cost of our equipment consumables and equipment, our equipment will be available to ordinary consumers and gain a huge market.

[0085] In summary, the present invention has the following effects: in terms of processing speed, it can achieve a 20 cm puppet figure in 30 minutes. Compared with traditional process equipment, the equipment of internationally renowned manufacturers Stratasys and Mimaki takes more than 20 hours, achieving an improvement of 1-2 orders of magnitude; in terms of cost, our consumables are RMB 100-200 per liter, while the consumables of international manufacturers Stratasys and Mimaki are close to RMB 2,000 per liter, and the cost of use is reduced by more than 1 order of magnitude; in terms of ease of operation, because the international manufacturers Stratasys and Mimaki adopt layer-by-layer stacking, layer lines are bound to be produced, and varnish cannot be printed in advance, and supporting sacrificial materials need to be printed, so special chemical reagents are needed to remove the sacrificial materials later, and polishing and potential varnish operations are also required, and these links are difficult to complete fully automatically and require manual intervention, while our equipment can complete the relevant operations fully automatically at one time without any subsequent process steps.

[0086] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0087] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0088] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0089] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A full-color printing device, characterized in that: The invention comprises a moving axis mechanism (1), a scanning and printing mechanism (2), a 3D component (3), and a supporting mechanism (4); the moving axis mechanism (1) is connected to the scanning and printing mechanism (2); the supporting mechanism (4) can support the 3D component (3); the moving axis mechanism (1) can drive the scanning and printing mechanism (2) to perform full-color printing on the surface of the 3D component (3); and at least one group of nozzles is arranged on the scanning and printing mechanism (2).

2. The full-color printing device according to claim 1, characterized in that: The movable axis mechanism (1) can drive the scanning and printing mechanism (2) to perform XYZ three-axis movement.

3. The full-color printing device according to claim 2, characterized in that: The surface of the 3D component (3) is an uneven curved surface.

4. The full-color printing device according to claim 3, characterized in that: The movable axis mechanism (1) comprises a rotating axis assembly (11) and a sliding axis assembly (12); a plurality of groups of the rotating axis assemblies (11) are connected and can rotate and extend; the rotating axis assembly (11) is provided with a sliding axis assembly (12); the sliding axis assembly (12) is connected to the scanning and printing mechanism (2); and the sliding axis assembly (12) can drive the scanning and printing mechanism (2) to move horizontally or vertically.

5. The full-color printing device according to claim 3, characterized in that: The movable axis mechanism (1) comprises a mounting frame (13), a movable frame assembly (14), and a sliding lifting assembly (15); the mounting frame (13) is provided with a movable frame assembly (14), the movable frame assembly (14) is provided with a sliding lifting assembly (15), the movable frame assembly (14) can slide on the mounting frame (13), the sliding lifting assembly (15) can slide and rise on the movable frame assembly (14), and the sliding lifting assembly (15) is connected to the scanning and printing mechanism (2).

6. The full-color printing device according to claim 5, characterized in that: The mobile frame assembly (14) comprises a mobile frame (141) and a mobile frame driving mechanism (142); the mounting frame (13) is provided with a mobile frame driving mechanism (142), the mobile frame driving mechanism (142) is connected to the mobile frame (141), and the mobile frame driving mechanism (142) can drive the mobile frame (141) to move and can guide and limit the mobile frame (141).

7. The full-color printing device according to claim 5, characterized in that: The sliding and lifting assembly (15) comprises a transverse sliding member (151) and a lifting member (152); the lifting member (152) is arranged on the transverse sliding member (151), the lifting member (152) can drive the scanning and printing mechanism (2) to move vertically, and the lifting member (152) can move on the transverse sliding member (151).

8. A full-color printing method, characterized in that: The invention comprises a full-color printing device as claimed in any one of claims 1 to 7, and the following method: S1: First, a 3D component (3) is machined with a precision of 1 to 2 mm; S2: The scanning and printing mechanism (2) is driven by the moving shaft mechanism (1) to scan and print the surface of the 3D component (3).

9. The full-color printing method according to claim 8, characterized in that: The S2 step includes the following steps, S2-1: First, the scanning and printing mechanism (2) is driven by the moving axis mechanism (1) to scan and analyze the 3D component (3); S2-2: dividing the surface roughness of the 3D component (3) into a number of small printing areas according to the scanning results; S2-3: The height difference of the small printing area is no more than 2 cm; S2-4: The moving axis mechanism (1) drives the scanning and printing mechanism (2) to the top of the designated printing area to perform fine printing in the X and Y directions; S2-5: driving the scanning and printing mechanism (2) to print other small printing areas of the 3D component (3) in sequence through the moving axis mechanism (1); S2-6: While printing, the surface of the 3D component (3) can be colored with varnish using the scanning printing mechanism (2).

10. The full-color printing method according to claim 9, characterized in that: The 3D component (3) can be obtained by mechanical cutting or melt extrusion.

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