Photocuring-type ceramic-metal composite 3D printer

Abstract

Disclosed in the present invention is a photocuring-type ceramic-metal composite 3D printer. A support is used for mounting and supporting an irradiation system, a spray coating mechanism, a scrape coating mechanism and a printing platform which are sequentially arranged from top to bottom. The irradiation system, the spray coating mechanism and the scrape coating mechanism each comprise a driving assembly so as to move close to or away from the printing platform. The spray coating mechanism and the scrape coating mechanism are separately connected to and communicated with a ceramic slurry conveying apparatus or a metal slurry conveying apparatus. The present invention uses a reasonable and ingenious layout and design in the vertical direction according to working distances and working features of the scrape coating mechanism, the spray coating mechanism and the irradiation system, thus enabling all the mechanisms and systems to cooperate well during operation, and enabling the present invention to have a simple and compact structure, which facilitates controlling the size of a finished product of the 3D printer. The present invention allows printing slurries of different materials simultaneously or alternately, and, in combination with photocuring technology, can be directly applied to production and manufacturing of green bodies of ceramic electronic components, thereby improving the manufacturing efficiency and quality of green bodies of ceramic electronic components.

Description

A light-curing ceramic-metal composite 3D printer Technical Field

[0001] The present invention belongs to the technical field of 3D printing, and in particular relates to a light-curing ceramic-metal composite 3D printer. Background Art

[0002] Traditional ceramic electronic components (such as multilayer ceramic capacitors and ceramic inductors) are generally prepared using a tape casting-lamination process, which requires the coordination of multiple equipment to produce the ceramic electronic component blanks. The process is relatively cumbersome and the production line is long. 3D printing has the advantages of fast molding speed, high degree of automation, high dimensional accuracy, and excellent surface quality in the preparation of ceramic electronic components. However, existing 3D printers can only print ceramic slurry or metal slurry. If you want to produce electronic component blanks with alternating ceramic and metal layers, you need to connect and integrate at least two 3D printers.

[0003] Therefore, the present invention aims to develop a composite 3D printer that can alternately print photosensitive ceramic slurry and photosensitive metal slurry to manufacture ceramic electronic component blanks by 3D printing. At the same time, since light-curing technology has the characteristics of fast speed and high efficiency, the present invention also combines light-curing technology to improve the efficiency of 3D printers in manufacturing ceramic electronic component blanks. Summary of the Invention

[0004] In response to the problems in the related art, the present invention proposes a light-curing ceramic-metal composite 3D printer to overcome the above-mentioned technical problems existing in the existing related art.

[0005] The technical solution of the present invention is achieved as follows:

[0006] A light-curing ceramic-metal composite 3D printer, comprising a frame, a printing platform, a scraping mechanism, a spraying mechanism and an irradiation system;

[0007] The irradiation system, the spraying mechanism, the scraping mechanism, and the printing platform are sequentially arranged from top to bottom through the frame mounting support, and the irradiation system, the spraying mechanism, and the scraping mechanism all include a driving component to move closer to or away from the printing platform;

[0008] The spraying mechanism is connected to and communicates with the ceramic slurry feeding equipment or the metal slurry feeding equipment;

[0009] The scraping mechanism is connected to and communicates with the ceramic slurry feeding equipment or the metal slurry feeding equipment.

[0010] Preferably, the printing platform is connected to a platform driving assembly for lifting movement;

[0011] The scraping mechanism includes a scraping drive assembly and at least one scraper, and the scraper is moved horizontally along the X axis above the printing platform by the scraping drive assembly. The spraying mechanism includes a spraying drive assembly and at least one nozzle, and the nozzle is moved horizontally along the X axis and / or along the Y axis above the printing platform by the spraying drive assembly. The spraying mechanism and the scraping mechanism operate on the printing platform simultaneously or in turns.

[0012] The irradiation system includes an irradiation light machine and an irradiation drive component. The light of the irradiation light machine is finally projected onto the printing platform to scan and solidify the slurry. The irradiation light machine performs a lifting motion above the printing platform through the irradiation drive component.

[0013] Preferably, the spraying mechanism is connected to and communicates with the metal slurry feeding equipment;

[0014] The scraping mechanism is connected to and communicated with the ceramic slurry feeding equipment.

[0015] Preferably, the spraying mechanism and the scraping mechanism take turns to operate close to the printing platform, and each time the spraying mechanism or the scraping mechanism operates on the printing platform, it resets in a direction away from the printing platform, and at the same time, the irradiation system scans and solidifies the slurry on the printing platform.

[0016] Preferably, the platform driving assembly includes a first motor and a first screw rod, and the top end of the first screw rod is directly or indirectly connected to the printing platform.

[0017] Preferably, the frame includes a mounting platform of a certain height, a mounting space is provided below the mounting platform for installing the platform drive assembly, and the mounting platform has an airtight opening for exposing the top surface of the printing platform;

[0018] The top surface of the installation platform supports and installs the scraping mechanism, the spraying mechanism and the irradiation system.

[0019] Preferably, the scraping drive assembly comprises at least one set of scraper slide rails and a second motor connected to the scraper slide rails, and the scraper moves along the scraper slide rails;

[0020] The installation platform is divided into an outer platform and an inner platform, and the outer platform at least surrounds one side of the inner platform.

[0021] The inner side of the inner platform is provided with the air-avoidance opening, and the inner platform is provided with a plurality of scraping feeding ports.

[0022] The top surface of the outer platform supports and mounts the scraper slide rail and the second motor. One side of the scraper is connected to the scraper slide rail and spans the inner platform and the printing platform.

[0023] Preferably, the spraying mechanism includes a spraying drive assembly and a material applying member driven by the spraying drive assembly, the material applying member is provided with a plurality of the nozzles, and the spraying drive assembly includes a set of Y-axis slide rails spanning the inner platform, a third motor connected to the Y-axis slide rails, at least one set of X-axis slide rails and a fourth motor connected to the X-axis slide rails;

[0024] The outer platform is provided with an elevated column, which is higher than the highest height of the scraping mechanism. The top surface of the elevated column is installed with the X-axis slide rail, which is connected to the Y-axis slide rail, and the Y-axis slide rail is connected to the material applying piece.

[0025] Preferably, the irradiation system includes an irradiation light machine and an irradiation drive component;

[0026] The irradiation drive assembly includes at least one vertical slide rail and a fifth motor connected to the vertical slide rail. The irradiation light machine is fixedly mounted on a mounting bracket. The mounting bracket is connected to and moves along the vertical slide rail. The irradiation light machine is suspended above the printing platform. The height of the vertical slide rail is at least such that the irradiation light machine is higher than the highest height of the spraying mechanism when it is reset.

[0027] The present invention also discloses another solution, in which the spraying mechanism can be replaced by an extrusion mechanism. Beneficial effects

[0028] The beneficial effects of the present invention are as follows: the working objects "slurry" of the scraping mechanism, spraying mechanism and irradiation system are all applied on the printing platform. The present invention makes a reasonable and ingenious upper and lower position layout design according to the working distance and working characteristics of the scraping mechanism, spraying mechanism and irradiation system, so that the operations of each mechanism and system can be well coordinated, and at the same time, the structure of the present invention is streamlined and compact, which is conducive to controlling the volume of the finished product of the 3D printer; the present invention can print slurries of different materials simultaneously or alternately, and combined with light curing technology, it can be directly applied to the production of ceramic electronic component blanks, which can improve the manufacturing efficiency and quality of ceramic electronic component blanks. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a schematic structural diagram of one of the present invention;

[0030] FIG2 is a second structural diagram of the present invention;

[0031] FIG3 is a schematic structural diagram of a frame according to the present invention;

[0032] FIG4 is a schematic structural diagram of a scraping mechanism of the present invention;

[0033] FIG5 is a schematic structural diagram of a spraying mechanism of the present invention;

[0034] FIG6 is a schematic structural diagram of an irradiation system according to the present invention;

[0035] FIG. 7 is a schematic structural diagram of a printing platform and a platform driving assembly of the present invention.

[0036] Reference numerals:

[0037] A. Rack;

[0038] 1. Elevate the columns;

[0039] 2. External platform; 201. External support column; 202. External panel;

[0040] 3. Inner platform; 301. Inner plate surface; 301a. Air-proof opening; 301b. Squeegee feeding port; 302. Inner support column;

[0041] 4. Base;

[0042] B. Scraping mechanism;

[0043] 5. Scraper;

[0044] 6. Scraping drive assembly; 601. Scraper rail; 601a. ​​Second rail slot; 601b. Second screw rod; 602. Second motor;

[0045] C. Spraying mechanism;

[0046] 7. Material application part; 701. Nozzle;

[0047] 8. Spray drive assembly; 801. Y-axis slide rail; 801a. Third slide rail slot; 801b. Third screw rod; 802. Third motor; 803. X-axis slide rail; 803a. Fourth slide rail slot; 803b. Fourth screw rod; 804. Fourth motor;

[0048] D. Irradiation system;

[0049] 9. Irradiation drive assembly; 901. Vertical slide rail; 901a. Fifth slide rail slot; 901b. Fifth lead screw; 902. Fifth motor; 903. Mounting bracket;

[0050] 10. Irradiation machine;

[0051] F. Printing platform;

[0052] G. Platform drive assembly; 11. Sleeve; 12. First motor; 13. Motor base. DETAILED DESCRIPTION

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0055] As shown in Figures 1 to 7, a light-curing ceramic-metal composite 3D printer includes a frame A, a scraping mechanism B, a spraying mechanism C, an irradiation system D, a printing platform F, and a control system. The scraping mechanism B, the spraying mechanism C, and the irradiation system D are controlled by the control system.

[0056] The irradiation system D, the spraying mechanism C, the scraping mechanism B, and the printing platform F are sequentially arranged from top to bottom through the frame A. The irradiation system D, the spraying mechanism C, and the scraping mechanism B all include a driving component to move closer to or away from the printing platform F.

[0057] The spraying mechanism C is connected to and communicates with the ceramic slurry feeding equipment or the metal slurry feeding equipment;

[0058] The scraping mechanism B is connected to and communicates with the ceramic slurry feeding equipment or the metal slurry feeding equipment.

[0059] The working object "slurry" of the scraping mechanism B, spraying mechanism C and irradiation system D is all applied on the printing platform F. This embodiment makes a reasonable and ingenious upper and lower position layout design based on the working distance and working characteristics of the scraping mechanism B, spraying mechanism C and irradiation system D.

[0060] Specifically, the scraping mechanism B is in an operation mode of approaching the printing platform F - scraping the slurry (needing to almost touch the printing platform F or the semi-finished product) - moving away from the printing platform F.

[0061] The spraying mechanism C is in an operation mode of approaching the printing platform F - applying the slurry (which can be a little distance away from the printing platform F or the semi-finished product) - moving away from the printing platform F.

[0062] The irradiation system D is at a certain distance from the printing platform F or the semi-finished product for scanning and curing;

[0063] Based on the above analysis, in this embodiment, the scraping mechanism B, the spraying mechanism C and the irradiation system D are sequentially designed above the printing platform F, so that the operations of each mechanism and system can be well coordinated, and at the same time, the structure of this embodiment is streamlined and compact, which is conducive to controlling the volume of the finished product of the 3D printer; this embodiment can print slurries of different materials simultaneously or alternately, and combined with light curing technology, it can be directly applied to the production of ceramic electronic component blanks, specifically electronic components involving metal circuits and ceramic filling media, such as MLCC blanks, chip inductors, chip resistors or heterogeneously integrated ceramic substrates, etc., which can improve the manufacturing efficiency and quality of ceramic electronic component blanks.

[0064] It should be noted that the spraying mechanism C in this embodiment can be replaced by an extrusion mechanism.

[0065] 3D printing is a process of gradually shaping the target finished product from one side to the other. Therefore, the mechanism related to the slurry application action needs to be equipped with relevant components to achieve an upward movement, or the forming table needs to be equipped with relevant components to achieve a downward movement, or both schemes can be used in combination. Considering that the forming table of a 3D printer is generally a table with a certain height, in order to fully utilize the space below the table and control the total height of the various mechanisms and systems above the table as much as possible, this embodiment is designed to complete the action of lowering the semi-finished product a specific distance before each slurry application by the printing platform F, and the printing platform F is connected to the platform drive component G for lifting movement.

[0066] The frame A includes a mounting platform of a certain height, and there is an installation space below the mounting platform to install the platform drive component G. The mounting platform has an air-proof opening 301a for the printing platform F to expose the top surface to receive the slurry; the top surface of the mounting platform supports and installs the scraping mechanism B, the spraying mechanism C and the irradiation system.

[0067] Furthermore, since the action of lowering the semi-finished product a specific distance is completed by the printing platform F, the scraping mechanism B only needs the scraper 5 to repeatedly move horizontally at the same level. Therefore, the scraping mechanism B includes a scraping drive assembly 6 and at least one scraper 5. The number of scrapers 5 can be designed as needed by those skilled in the art. The scraper 5 is moved horizontally along the X axis above the printing platform F by the scraping drive assembly 6.

[0068] The spraying mechanism C includes a spraying drive assembly 8 and at least one nozzle 701. The scraping mechanism B performs surface coating on the semi-finished product, as long as the scraper 5 completely covers the printing platform F. The spraying mechanism C needs to move to the target position to apply the slurry. Therefore, the nozzle 701 performs X-axis horizontal motion and / or Y-axis horizontal motion above the printing platform F through the spraying drive assembly 8.

[0069] The spraying mechanism C and the scraping mechanism B operate on the printing platform F simultaneously or in turn, and the coordinated action design is specifically determined by the material structure of the target finished product.

[0070] The irradiation system D includes an irradiation light machine 10 and an irradiation drive component 9. The light of the irradiation light machine 10 is finally projected onto the printing platform F to scan the slurry. Since this embodiment is mainly used for tiny and stacked electronic components, the irradiation light machine 10 can be lifted and lowered above the printing platform F through the irradiation drive component 9, which is convenient for adjusting the distance between the irradiation light machine and the semi-finished product.

[0071] The irradiation light machine 10 is an existing device in the field of photocuring. Those skilled in the art can design it as needed to adjust the laser power, scanning path, scanning speed, etc., which will not be described in detail here.

[0072] The present invention can be applied to the preparation of electronic components involving metal circuits and ceramic filling media. Since the metal circuit has a specific pattern, it is preferably laid and stacked by precisely controlled spraying or extrusion. The spraying mechanism C described in this embodiment is connected and connected to the metal slurry feeding equipment; since the ceramic slurry is a filling medium, it is preferably laid and stacked by scraping. The scraping mechanism B in this embodiment is connected and connected to the ceramic slurry feeding equipment.

[0073] Furthermore, this embodiment is mainly used in the production of electronic component blanks with alternating ceramic layers and metal layers such as multilayer ceramic capacitors and ceramic inductors. Therefore, in this embodiment, the spraying mechanism C and the scraping mechanism B take turns to operate close to the printing platform F. Each time the spraying mechanism C or the scraping mechanism B operates on the printing platform F, it resets in the direction away from the printing platform F to avoid blocking the light of the radiation light machine. At the same time, the irradiation system D scans the slurry on the printing platform F for solidification.

[0074] In this embodiment, the platform drive assembly G includes a first motor 12 and a first screw rod. The first motor 12 is controlled by the control system. The first screw rod can more precisely control the lifting height of the printing platform F. The top end of the first screw rod is directly or indirectly connected to the printing platform F. The first screw rod is directly or indirectly connected to the first motor 12 and rotates under the drive of the first motor 12.

[0075] Specifically, the platform drive assembly G also includes a motor seat 13 and a sleeve 11. The printing platform F is set on the top of the sleeve 11. The bottom of the sleeve 11 is provided with a threaded hole adapted to the first screw rod to connect the first screw rod. The interior of the sleeve 11 has a space for the first screw rod to extend into. The sleeve 11 is raised and lowered along the first screw rod to realize the lifting and lowering movement of the printing platform F; the motor seat 13 is installed at the bottom of the first motor 12 to support the first motor 12.

[0076] The scraping drive assembly 6 includes at least one set of scraper rails 601 and a second motor 602 connected to the scraper rails 601. In essence, as long as the scraper 5 moves along the scraper rails 601 and the moving area of ​​the scraper 5 can cover the printing platform F, the second motor 602 is controlled by the control system. In order to make the movement of the scraper 5 more stable and the force more uniform, the scraper rails 601 of this embodiment are provided with two sets, one on each side of the scraper 5, each set of scraper rails 601 includes a second rail groove 601a and a second screw rod 601b installed in the second rail groove 601a. ​​The second screw rod 601b is directly or indirectly connected to the second motor 602 and rotates under the drive of the second motor 602. The two ends of the scraper 5 are provided with threaded holes adapted to the second screw rod 601b. The scraper 5 performs X-axis horizontal movement along the second screw rod 601b.

[0077] In actual production, the two second screw rods 601b distributed on the left and right can be driven by a second motor 602 by designing a suitable transmission component. In this embodiment, the two second motors 602 are designed to directly or indirectly drive the two second screw rods 601b distributed on the left and right to rotate.

[0078] The installation platform is divided into an outer platform 2 and an inner platform 3, which is convenient for installing components in different positions and then integrating them. The outer platform 2 at least surrounds one side of the inner platform 3. The air-avoidance opening 301a is set in the middle of the inner side of the inner platform 3. The inner platform 3 is provided with a plurality of scraping feed ports 301b. The scraping feed ports 301b are connected to and communicated with the ceramic slurry feeding equipment, and the ceramic slurry is transported to the plane of the inner platform 3.

[0079] The top surface of the outer platform 2 supports and installs the scraper slide 601 and the second motor 602. One side of the scraper 5 is connected to the scraper slide 601 and spans the inner platform 3 and the printing platform F. In order to cooperate with the design of the above-mentioned two groups of left and right scraper slides 601, the outer platform 2 of this embodiment surrounds the inner platform 3, and the two groups of scraper slides 601 are installed on the outer platform 2 and correspond to the outer sides of the two opposite sides of the inner platform 3.

[0080] In this embodiment, the spraying mechanism C includes a spraying drive assembly 8 and a feeding member 7 driven by the spraying drive assembly, the feeding member 7 is provided with a plurality of nozzles 701, and the feeding member 7 is connected to and communicated with the metal slurry feeding equipment; the spraying drive assembly 8 includes a set of Y-axis slide rails 801 spanning the inner platform 3, a third motor 802 connected to the Y-axis slide rails 801, two sets of X-axis slide rails 803 and a fourth motor 804 connected to the X-axis slide rails 803, and the third motor 802 and the fourth motor 804 are controlled by the control system.

[0081] The outer platform 2 is provided with four rectangularly distributed elevated columns 1, and the elevated columns 1 are higher than the highest height of the scraping mechanism B to prevent the spraying mechanism C from affecting the movement of the scraping mechanism B.

[0082] An X-axis slide rail 803 is installed on the top surface of the two elevated columns 1 located on the same side. The two groups of X-axis slide rails 803 are distributed on the same side as the two groups of scraper slide rails 601 and are located above the scraper slide rails 601. The two groups of X-axis slide rails 803 distributed on the left and right are connected to the two ends of the Y-axis slide rail 801. The Y-axis slide rail 801 can move along the X-axis slide rail 803 to meet the movement of the application piece 7 in the X-axis direction. The Y-axis slide rail 801 is connected to the application piece 7. The application piece 7 moves along the Y-axis slide rail 801 to meet the movement in the X-axis direction. The application piece 7 can accurately move to the target position to apply the slurry.

[0083] In essence, the X-axis slide rail 803 is configured to support the Y-axis slide rail 801 , but in order to make the movement of the Y-axis slide rail 801 smoother and the force more uniform, this embodiment is designed as two sets of X-axis slide rails 803 to connect the two ends of the Y-axis slide rail 801 .

[0084] Specifically, the Y-axis slide rail 801 includes a third slide rail groove 801a and a third screw rod 801b installed in the third slide rail groove 801a. The third screw rod 801b is directly or indirectly connected to the third motor 802 and rotates under the drive of the third motor 802. The feeding piece 7 is provided with a threaded hole adapted for the third screw rod 801b. The feeding piece 7 performs Y-axis horizontal movement along the third screw rod 801b.

[0085] Specifically, each group of the X-axis slide rails 803 includes a fourth slide rail groove 803a and a fourth screw rod 803b installed in the fourth slide rail groove 803a. The fourth screw rod 803b is directly or indirectly connected to the fourth motor 804 and rotates under the drive of the fourth motor 804. The bottom sides of the third slide rail groove 801a are respectively provided with threaded holes adapted to the fourth screw rod 803b. The third slide rail groove 801a performs X-axis horizontal movement along the fourth screw rod 803b to realize the movement of the material applying piece 7 on the X-axis.

[0086] In actual production, the two fourth screw rods 803b distributed on the left and right can be driven by one fourth motor 804 by designing a suitable transmission component. In this embodiment, the two fourth motors 804 are designed to directly or indirectly drive the two fourth screw rods 803b distributed on the left and right to rotate.

[0087] In this embodiment, the irradiation system D includes an irradiation light machine 10 and an irradiation drive assembly 9;

[0088] The irradiation drive assembly 9 includes two vertical slide rails 901 and a fifth motor 902 connected to the vertical slide rails 901. The irradiation light machine 10 is fixedly mounted on a mounting bracket 903. The mounting bracket 903 is connected to the vertical slide rails 901 and moves along the vertical slide rails 901. The irradiation light machine 10 is suspended above the printing platform F. The height of the vertical slide rails 901 is at least such that the irradiation light machine 10 is higher than the highest height of the spraying mechanism C when it is reset, so as to avoid interfering with the movement of the spraying mechanism C.

[0089] Specifically, each set of vertical rails 901 includes a fifth rail slot 901a and a fifth screw rod 901b mounted within the fifth rail slot 901a. The fifth screw rod 901b is directly or indirectly connected to the fifth motor 902 and rotates under the drive of the fifth motor 902. Threaded holes for the fifth screw rod 901b are provided on both sides of the bottom of the mounting bracket 903. The mounting bracket 903 moves up and down along the fifth screw rod 901b to drive the irradiation machine 10 toward or away from the printing platform F. Two fifth rail slots 901a are symmetrically mounted on the outside of the spraying mechanism C.

[0090] In essence, the vertical slide rail 901 is configured to support the mounting bracket 903 and the irradiation light machine 10 , but in order to make the movement of the mounting bracket 903 smoother and the force more uniform, this embodiment is designed as two sets of vertical slide rails 901 to connect the two ends of the mounting bracket 903 .

[0091] The frame A includes four outer support columns 201, an outer panel 202, four inner support columns 302, an inner panel 301 and a base 4. The four outer support columns 201 support and raise the outer panel 202 to form the outer platform 2. The four inner support columns 302 support and raise the inner panel 301 to form the inner platform 3. The outer support columns 201, the inner support columns 302 and the motor seat 13 are all installed and fixed on the base 4.

[0092] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A light-curing ceramic-metal composite 3D printer, characterized in that: It includes a frame, a printing platform, a scraping mechanism, a spraying mechanism and an irradiation system; The irradiation system, the spraying mechanism, the scraping mechanism, and the printing platform are arranged in sequence from top to bottom through the frame mounting support, and the irradiation system, the spraying mechanism, and the scraping mechanism all include a driving component to approach or move away from the printing platform; The spraying mechanism is connected and communicated with the ceramic slurry feeding equipment or the metal slurry feeding equipment; The scraping mechanism is connected to and communicated with the ceramic slurry feeding equipment or the metal slurry feeding equipment.

2. The light-curing ceramic-metal composite 3D printer according to claim 1, characterized in that: The printing platform is connected to a platform driving assembly for lifting movement; The scraping mechanism comprises a scraping drive assembly and at least one scraper, the scraper performs X-axis horizontal motion above the printing platform through the scraping drive assembly, the spraying mechanism comprises a spraying drive assembly and at least one nozzle, the nozzle performs X-axis horizontal motion and / or Y-axis horizontal motion above the printing platform through the spraying drive assembly, and the spraying mechanism and the scraping mechanism operate on the printing platform simultaneously or in turns; The irradiation system includes an irradiation light machine and an irradiation drive component. The light of the irradiation light machine is finally projected onto the printing platform to scan the slurry. The irradiation light machine performs lifting motion above the printing platform through the irradiation drive component.

3. The light-curing ceramic-metal composite 3D printer according to claim 2, characterized in that: The spraying mechanism is connected and communicated with the metal slurry feeding equipment; The scraping mechanism is connected to and communicated with the ceramic slurry feeding equipment.

4. The light-curing ceramic-metal composite 3D printer according to claim 3, characterized in that: The spraying mechanism and the scraping mechanism take turns to approach the printing platform for operation. Each time the spraying mechanism or the scraping mechanism is operated on the printing platform, it is reset in a direction away from the printing platform. At the same time, the irradiation system scans the slurry on the printing platform.

5. The light-curing ceramic-metal composite 3D printer according to any one of claims 2 to 4, characterized in that: The platform driving assembly includes a first motor and a first screw rod, and the top end of the first screw rod is directly or indirectly connected to the printing platform.

6. The light-curing ceramic-metal composite 3D printer according to claim 5, characterized in that: The frame includes a mounting platform with a certain height, a mounting space is provided below the mounting platform to install the platform driving assembly, and the mounting platform has an air-avoiding opening for exposing the top surface of the printing platform; The top surface of the installation platform supports and installs the scraping mechanism, the spraying mechanism and the irradiation system.

7. The light-curing ceramic-metal composite 3D printer according to claim 6, characterized in that: The scraper drive assembly includes at least one set of scraper slide rails and a second motor connected to the scraper slide rails, and the scraper moves along the scraper slide rails; The installation platform is divided into an outer platform and an inner platform, wherein the outer platform at least surrounds one side of the inner platform. The air-avoiding opening is arranged on the inner side of the inner platform, and the inner platform is provided with a plurality of scraping and coating feeding openings. The top surface of the outer platform supports and mounts the scraper slide rail and the second motor. One side of the scraper is connected to the scraper slide rail and spans the inner platform and the printing platform.

8. The light-curing ceramic-metal composite 3D printer according to claim 7, characterized in that: The spraying mechanism comprises a spraying drive assembly and a material applying member driven by the spraying drive assembly, the material applying member is provided with a plurality of the nozzles, the spraying drive assembly comprises a set of Y-axis slide rails spanning the inner platform, a third motor connected to the Y-axis slide rails, at least one set of X-axis slide rails and a fourth motor connected to the X-axis slide rails; The outer platform is provided with an elevated column, which is higher than the highest height of the scraping mechanism. The top surface of the elevated column is installed with the X-axis slide rail, which is connected to the Y-axis slide rail, and the Y-axis slide rail is connected to the material application piece.

9. The light-curing ceramic-metal composite 3D printer according to claim 8, characterized in that: The irradiation system includes an irradiation light machine and an irradiation drive component; The irradiation drive assembly includes at least one vertical slide rail and a fifth motor connected to the vertical slide rail. The irradiation light machine is fixedly mounted on a mounting bracket, and the mounting bracket is connected to and moves along the vertical slide rail. The irradiation light machine is suspended above the printing platform, and the height of the vertical slide rail is at least sufficient to ensure that the irradiation light machine is higher than the maximum height of the spraying mechanism when it is reset.

10. The light-curing ceramic-metal composite 3D printer according to claim 1, characterized in that: The spraying mechanism may also be replaced by an extrusion mechanism.

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