A high-resolution multi-material face projection light-curing 3D printing system

Abstract

The application relates to a 3D printing technology, in particular to a high-resolution multi-material surface projection light-curing 3D printing system. The system comprises a support frame, the support frame is fixedly connected with an X-axis displacement platform, the X-axis displacement platform is connected with a mounting platform, the mounting platform is provided with a cleaning and drying mounting module and a plurality of feeding modules, the support frame is fixedly connected with a support base, the support base is provided with a printing forming module for printing forming, the support base is provided with an optical splicing module for multiple-exposure projection printing, and the support base is provided with a common reference support module for providing a reference for the bottoms of the plurality of feeding modules; the system can guarantee that the 3D printing has high-resolution forming capacity and multi-material high-precision integrated forming capacity.

Description

TECHNICAL FIELD

[0001] The present application relates to 3D printing technology, more particularly to a high-resolution multi-material face projection light-curing 3D printing system. BACKGROUND

[0002] 3D printing technology has enabled various industries to obtain more efficient and easier-to-meet personalized customization manufacturing methods, and at the same time, users have designed parts with higher degrees of freedom to obtain higher use performance, which has also put forward higher requirements for 3D printing systems, mainly including the following two points:

[0003] Including high precision with large forming area, i.e. high resolution, and single part with customizable material distribution.

[0004] On the one hand, the demand for high forming precision and large formable size is reflected in the 3D printing system, which requires as small as possible projection pixels to improve forming precision, and as many as possible single-layer pixels to improve forming size. At present, the number of single projection pixels is limited by the optical machine, and the number of pixels in the current projection system is still at the level of millions, which is not enough to meet the demand of large-size high-precision printing forming.

[0005] On the other hand, the demand for single part with customizable material distribution, the current multi-material forming is mainly through single-pool cleaning and replacement of materials and multi-pool switching and cleaning methods. At the same time, the demand for high resolution also makes the demand for multi-material replacement forming precision more demanding. The single-pool cleaning and replacement method has the defect of huge consumption of printing materials, and the high-precision forming increases the number of printing layers, which further magnifies this defect, so it is difficult to apply to high-precision forming. The multi-pool switching and cleaning method has a long replacement travel due to large area, so the printing reference difference between the multi-pools is large, which is difficult to meet the demand of high-precision forming between multi-materials. SUMMARY

[0006] The purpose of the present application is to provide a high-resolution multi-material face projection light-curing 3D printing system, which can guarantee high-resolution forming capability of 3D printing while having high-precision integrated forming capability of multi-materials.

[0007] The purpose of the present application is achieved by the following technical solutions:

[0008] A high-resolution multi-material face projection light-curing 3D printing system, comprising a support frame, the support frame is fixedly connected with an X-axis displacement platform, the X-axis displacement platform is connected with a mounting platform, the mounting platform is provided with a cleaning and drying mounting module and a plurality of feeding modules, the support frame is fixedly connected on a support base, the support base is provided with a printing forming module for printing forming, the support base is provided with an optical splicing module for multiple exposure projection printing, and the support base is provided with a common reference support module for providing a reference for the bottom of the plurality of feeding modules;

[0009] The cleaning and drying mounting module comprises an ultrasonic cleaning tank, and the ultrasonic cleaning tank is provided with a drying module;

[0010] The feeding module comprises a flexible release tank, the bottom of the flexible release tank is provided with a flexible release film, the side of the flexible release tank is provided with a cavity, the cavity is provided with a floating block, the cavity is fixedly connected with a distance sensor, and the side of the flexible release tank is provided with a negative pressure suction port for removing material; the flexible release tank is provided with a gas-liquid interface I;

[0011] The printing forming module comprises a mounting base I, the mounting base I is fixedly connected with a Z1-axis displacement platform, the moving end of the Z1-axis displacement platform is fixedly connected with a cantilever mounting bracket, the lower end of the cantilever mounting bracket is connected with a base mounting block through a leveling screw, a leveling rubber pad is arranged between the cantilever mounting bracket and the base mounting block, and a forming base is connected to the base mounting block through a hand-tightening fastening bolt; the mounting base I is fixedly connected to the support base;

[0012] The optical splicing module comprises an X-Y superposed-axis displacement platform, the X-Y superposed-axis displacement platform is fixedly connected to the support base, the X-Y superposed-axis displacement platform is provided with a Y mounting sliding block, the Y mounting sliding block is provided with an X mounting sliding block, the X mounting sliding block is fixedly connected with a DLP optical engine, the X-Y superposed-axis displacement platform is fixedly connected with a slide rail, three sliding blocks are slidingly connected to the slide rail, a locking screw is threadedly connected to each sliding block, and an aperture unit, a lens unit and a reflecting mirror unit are fixedly connected to the three sliding blocks in sequence;

[0013] The common reference support module comprises a mounting base II, the mounting base II is fixedly connected to the support base, the mounting base II is fixedly connected with a Z2-axis displacement platform, the moving end of the Z2-axis displacement platform is fixedly connected with a cavity connecting frame, and the cavity connecting frame is fixedly connected with a high-transmittance support plate;

[0014] Further comprising a gas-liquid feeding circulation system, the gas-liquid feeding circulation system comprises a box mounting plate, five groups of liquid peristaltic pumps and four groups of gas diaphragm pumps are fixedly connected in the box mounting plate, two gas-liquid interfaces II are arranged on each gas diaphragm pump, and a pump driving plate is fixedly connected in the box mounting plate;

[0015] Three storage pools and three sealed recycling tanks are further included, and three feeding modules are provided, the storage pool is connected with the liquid peristaltic pump through the gas-liquid hose, the liquid peristaltic pump is connected with the flexible separation tank through the gas-liquid hose, the floating block in the flexible separation tank is connected with the liquid level sensor to control the upper limit of feeding; the flexible separation tank is connected with the sealed recycling tank through the gas-liquid hose, the sealed recycling tank is connected with the gas diaphragm pump through the gas-liquid hose, the other end of the gas diaphragm pump is directly connected with the external gas environment, the gas diaphragm pump forms a negative pressure space in the sealed recycling tank, and residual material recycling is realized at the negative pressure suction material port of the flexible separation tank;

[0016] The gas pump control system is further included, and the gas-liquid feeding circulation system is connected with the gas pump control system;

[0017] The printing control system is further included.

[0018] The present application has the following beneficial effects:

[0019] Through multiple exposure of the optical splicing module, single-layer high-resolution forming under the condition of unchanged pixels is realized, then cleaning and material replacement are realized through coaxial switching of the x-axis displacement platform, cleaning and drying are realized through the cleaning and drying installation module, multiple printing materials are provided through multiple feeding modules, the forming surface position of each flexible separation tank is determined through the bottom support of the common reference support module during the forming process, and the high precision can be guaranteed by the repeated positioning precision of the common reference support module. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described in detail in combination with the drawings and specific implementation methods.

[0021] Figure 1 It is a high-resolution multi-material surface projection light-curing 3D printing system structure schematic diagram of the present application;

[0022] Figure 2 It is a high-resolution multi-material surface projection light-curing 3D printing system local structure schematic diagram of the present application;

[0023] Figure 3 It is a high-resolution multi-material surface projection light-curing 3D printing system front view structure schematic diagram of the present application;

[0024] Figure 4 It is a gas pump control system, storage pool, sealed recycling tank and gas-liquid feeding circulation system connection structure schematic diagram of the present application;

[0025] Figure 5 It is a storage pool, sealed recycling tank, gas-liquid feeding circulation system and feeding module connection structure schematic diagram of the present application through the gas-liquid hose;

[0026] Figure 6is the schematic diagram of the x-axis displacement platform and mounting platform structure of the present application;

[0027] Figure 7 is the schematic diagram of the cleaning and drying mounting module and supply module structure of the present application;

[0028] Figure 8 is the schematic diagram of the supply module structure of the present application;

[0029] Figure 9 is the schematic diagram of the printing and forming module structure of the present application;

[0030] Figure 10 is the schematic diagram of the optical splicing module structure of the present application;

[0031] Figure 11 is the schematic diagram of the common reference support module structure of the present application;

[0032] Figure 12 is the schematic diagram of the gas-liquid supply circulation system structure of the present application.

[0033] In the figure:

[0034] Support base 11; support frame 12; X-axis displacement platform 13;

[0035] Mounting platform 20;

[0036] Cleaning and drying mounting module 30; ultrasonic cleaning pool 31; drying module 32;

[0037] Supply module 40; flexible release material pool 41; flexible release film 42; distance sensor 43; floating block 44; gas-liquid interface I 45;

[0038] Printing and forming module 50; mounting base I 51; Z1-axis displacement platform 52; cantilever mounting rack 53; leveling rubber pad 54; base mounting block 55; forming base 56; hand-tightening fastening bolt 57; leveling screw 58;

[0039] Optical splicing module 60; X-Y superimposed-axis displacement platform 61; Y mounting sliding block 62; X mounting sliding block 63; DLP optical engine 64; sliding rail 65; sliding block 66; locking screw 67; diaphragm unit 68; lens unit 69; mirror unit 610;

[0040] Common reference support module 70; mounting base II 71; Z2-axis displacement platform 72; cavity connecting rack 73; high-transmittance support plate 74;

[0041] Gas-liquid supply circulation system 80; box mounting plate 81; liquid peristaltic pump 82; gas-liquid interface II 83; pump drive plate 84; gas diaphragm pump 85;

[0042] Storage tank 91; sealed recycling tank 92;

[0043] Gas pump control system 100. DETAILED DESCRIPTION

[0044] The application will be further described in detail below with reference to the accompanying drawings.

[0045] As Figures 1 to 12 shown, in order to achieve the technical effect of "ensuring high-resolution forming capability of 3D printing while having high-precision integrated forming capability of multiple materials", the structure and function of the high-resolution multiple material face projection light curing 3D printing system will be described in detail below;

[0046] A high-resolution multiple material face projection light curing 3D printing system, comprising a support frame 12, the support frame 12 is fixedly connected with an X-axis displacement platform 13, the X-axis displacement platform 13 is connected with a mounting platform 20, the mounting platform 20 is provided with a cleaning and drying mounting module 30 and a plurality of feeding modules 40, the support frame 12 is fixedly connected on a support base 11, the support base 11 is provided with a printing forming module 50 for printing forming, the support base 11 is provided with an optical splicing module 60 for multiple exposure projection printing, and the support base 11 is provided with a common reference support module 70 for providing a reference to the bottom of the plurality of feeding modules 40;

[0047] In use, single-layer high-resolution forming is realized under the condition of unchanged face pixels through multiple splicing exposure of a single face image by the optical splicing module 60, then cleaning and material replacement are realized through coaxial switching position of the X-axis displacement platform 13, cleaning and drying are realized through the cleaning and drying mounting module 30, multiple printing materials are provided through the plurality of feeding modules 40, and the forming surface position of each flexible release tank 41 is determined through the common reference support module 70 supporting the bottom of the flexible release tank 41 during the forming process, and the high precision can be guaranteed by the repeated positioning accuracy of the common reference support module 70;

[0048] The cleaning and drying mounting module 30 comprises an ultrasonic cleaning tank 31, and a drying module 32 is arranged on the ultrasonic cleaning tank 31, the object after printing is ultrasonically cleaned through the ultrasonic cleaning tank 31, and the object after cleaning is dried by spraying dry gas through the drying module 32;

[0049] The feeding module 40 comprises a flexible release tank 41, the bottom of the flexible release tank 41 is provided with a flexible release film 42, a cavity is arranged on the side edge of the flexible release tank 41, a float 44 is arranged in the cavity, a distance sensor 43 is fixedly connected on the cavity, and a negative pressure air suction material removal port is arranged on the side edge of the flexible release tank 41; the flexible release tank 41 is provided with a gas-liquid interface I 45;

[0050] The printing forming module 50 includes a mounting base I 51, the Z1 axis displacement platform 52 is fixedly connected on the mounting base I 51, the moving end of the Z1 axis displacement platform 52 is fixedly connected with a cantilever mounting bracket 53, the lower end of the cantilever mounting bracket 53 is connected with a base mounting block 55 through a leveling screw 58, the leveling rubber pad 54 is arranged between the cantilever mounting bracket 53 and the base mounting block 55, the forming base 56 is connected on the base mounting block 55 through a hand-tightening fastening bolt 57, and the mounting base I 51 is fixedly connected on the support base 11; the leveling screw 58 tightly compresses the leveling rubber pad 54 to level the forming base 56, and the high-precision Z1 axis displacement platform 52 achieves the purpose of controlling high-precision movement of the forming base 56.

[0051] The optical splicing module 60 includes an X-Y superposed axis displacement platform 61, the X-Y superposed axis displacement platform 61 is fixedly connected on the support base 11, the Y mounting sliding block 62 is arranged on the X-Y superposed axis displacement platform 61, the X mounting sliding block 63 is arranged on the Y mounting sliding block 62, the DLP optical engine 64 is fixedly connected on the X mounting sliding block 63, the slide rail 65 is fixedly connected on the X-Y superposed axis displacement platform 61, the three sliding blocks 66 are slidably connected on the slide rail 65, the locking screw 67 is threadedly connected on each sliding block 66, the diaphragm unit 68, the lens unit 69 and the reflecting mirror unit 610 are sequentially fixedly connected on the three sliding blocks 66; the X-Y superposed axis displacement platform 61 achieves the purpose of controlling high-precision splicing in a plane;

[0052] The common reference support module 70 includes a mounting base II 71, the mounting base II 71 is fixedly connected on the support base 11, the Z2 axis displacement platform 72 is fixedly connected on the mounting base II 71, the cavity connecting bracket 73 is fixedly connected on the moving end of the Z2 axis displacement platform 72, and the high-transmittance support plate 74 is fixedly connected on the cavity connecting bracket 73;

[0053] Further, the gas-liquid supply circulation system 80 includes the box mounting plate 81, the five groups of liquid peristaltic pumps 82 and the four groups of gas diaphragm pumps 85 are fixedly connected in the box mounting plate 81, the two gas-liquid interfaces II 83 are arranged on each gas diaphragm pump 85, and the pump driving plate 84 is fixedly connected in the box mounting plate 81;

[0054] Three storage pools 91 and three sealed recycling tanks 92 are also included, and the feeding module 40 is provided with three, the storage pool 91 is connected with the liquid peristaltic pump 82 through the gas-liquid hose, the liquid peristaltic pump 82 is connected with the flexible off-type material pool 41 through the gas-liquid hose, the float 44 in the flexible off-type material pool 41 and the liquid level sensor 43 sense the liquid level to control the upper limit of feeding; the flexible off-type material pool 41 is connected with the sealed recycling tank 92 through the gas-liquid hose, the sealed recycling tank 92 is connected with the gas diaphragm pump 85 through the gas-liquid hose, the other end of the gas diaphragm pump 85 is directly connected with the external gas environment, and the gas diaphragm pump 85 forms a negative pressure space in the sealed recycling tank 92, so that the residual material is recycled at the negative pressure suction material port of the flexible off-type material pool 41; the gas pump control system 100 is also included, and the gas-liquid feeding circulating system 80 is connected with the gas pump control system 100;

[0055] The printing control system includes a five-axis displacement platform control lower computer for controlling the X-axis displacement platform 13, the Z1-axis displacement platform 52, the X-Y superposed-axis displacement platform 61 and the Z2-axis displacement platform 72, a gas-liquid pump control lower computer for controlling the liquid peristaltic pump 82 and the gas diaphragm pump 85, and a process control upper computer for controlling process parameters, and a printing program is run in the process control upper computer based on the process parameters, instructions are sent to the five-axis displacement platform control lower computer and the gas-liquid pump control lower computer in real time to realize processes such as layer-by-layer forming, high-precision splicing, common-reference support, cleaning and drying of multi-material printing, and the processes are cyclically run to achieve the purpose of high-resolution multi-material surface projection photocuring forming;

[0056] In use, an operator installs the forming base 56 and fixes it by hand-tightening the fixing bolt 57,

[0057] The operator sets process parameters on the printing control system, including printing focal plane position, slice configuration file, printing layer thickness, flexible off-type material pool 41 position, feeding liquid level, X-axis displacement platform 13 movement speed at each stage, liquid peristaltic pump 82 and gas diaphragm pump 85 output speed and time at each stage, photocuring exposure intensity and time, and system inherent size parameters, and starts program running;

[0058] The DLP optical engine 64 is closed, and the X-axis displacement platform 13, the Z1-axis displacement platform 52, the X-Y superposed-axis displacement platform 61 and the Z2-axis displacement platform 72 are zeroed without interference;

[0059] The feeding module 40 moves to a material one printing station, checks the feeding condition of the material one flexible off-type material pool 41 and feeds to the set liquid level;

[0060] The Z2-axis displacement platform 72 is started, the moving end of the Z2-axis displacement platform 72 drives the cavity connecting frame 73 to move upward, the cavity connecting frame 73 drives the high-transmittance support plate 74 to move upward, the high-transmittance support plate 74 supports the flexible release film 42 at the bottom end of the flexible release pool 41 to be flat and stable on the focal plane, at the same time, the Z1-axis displacement platform 52 controls the forming substrate 56 to move downward, the forming substrate 56 is immersed in the flexible release pool 41, and a single-layer liquid thin layer is formed between the forming substrate 56 and the flexible release film 42;

[0061] The X-Y superimposed-axis displacement platform 61 and the DLP optical engine 64 divide the single-layer image into a plurality of projection images according to the slice configuration file, wherein each image is consistent with the pixel configuration of the DLP optical engine 64, and the plurality of projection images are exposed and cured after being moved to the projection position for a plurality of times until the single layer is completely exposed, since the single layer is exposed and cured for a plurality of times, the number of pixels of the single layer is increased, and the number of pixels is increased with the increase of the number of splicing surfaces, so that the purpose of high-resolution forming is achieved; when the single layer is cured and formed, the single-layer image is divided into a plurality of exposure and curing, and each exposure image has the same number of pixels as the optical engine, so that the single-layer exposure and forming image has a number of pixels that is several times the number of pixels of the optical engine, thereby improving the single-layer resolution and effectively improving the precision of image light projection, and ensuring the high-precision curing and forming of the single layer;

[0062] The common reference support module 70 is displaced downward, the high-transmittance support plate 74 moves downward, the high-transmittance support plate 74 releases the flexible release film 42 at the bottom end of the flexible release pool 41, then the printing and forming module 50 is displaced upward, and the forming layer is separated from the flexible release film 42 in a peeling and tearing manner, so that the purpose of large-area micro-force nondestructive release is achieved;

[0063] The printing and forming module 50 is displaced upward, so that the lower surface of the printed part is slightly higher than the height of the negative pressure air suction and material removal port, the X-axis displacement platform 13 drives the negative pressure air suction and material removal port to move and sweep the lower end of the formed part on the printing and forming module 50, and the liquid material coated on the printed part is sucked and recycled in the process;

[0064] The X-axis displacement platform 13 drives the cleaning and drying installation module 30 to move to the lower end of the printing and forming module 50, the printing and forming module 50 is displaced downward to the cleaning height, then ethanol, acetone or other washing agents are injected into the ultrasonic cleaning pool 31 to a set amount, the printed part forming part structure is opened and cleaned by the timed ultrasonic cleaning, the macro and micro structures in the pool can be cleaned, and the purpose of nondestructive cleaning of the micro structure is achieved by using high-frequency cleaning, and the washing agent is discharged after ultrasonic cleaning, the above injection of washing agent-ultrasonic cleaning-discharge of washing agent process program can set the number of cycle cleaning times, so that the purpose of reducing the mixing of multiple materials is achieved;

[0065] The printing forming module 50 is upwardly displaced, so that the lower surface of the printed part is slightly higher than the height of the drying module 32, and then the X-axis displacement platform 13 drives the second material supply module 40 to move to the lower end of the printing forming module 50, i.e. the X-axis displacement platform 13 moves to the second material station, and in the process, the low-speed movement is adopted when passing through the drying module 32, and the air pump is opened to blow and dry the surface of the printed part;

[0066] The above steps are the one-time forming, cleaning and drying of a single layer and a single material. The steps are repeated and cycled, and the material station is changed to switch the forming material. The position of the printing forming module 50 during printing is changed to form a new single-layer liquid thin layer, so that the parts are formed layer by layer and photocured. Regardless of the material change within the layer or the position change of the printing forming module 50 between layers, the space position is constrained by the common reference supporting module 70 during the projection forming process, so that the thickness of the material change and the layer switching can be guaranteed, and the purpose of high-precision forming in the layer thickness direction is achieved.

[0067] After printing, the printing forming module 50 is moved to zero, the operator removes the formed substrate 56, and then uses a scraper or other tools to remove the printed part, thereby completing the high-resolution multi-material part printing and manufacturing.

[0068] In this paper, specific examples are used to illustrate the principles and implementation modes of the present application. The above examples are only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range can be changed. In summary, the content of the present application should not be understood as a limitation of the present application.

Claims

1. A high resolution multi-material face projection light solidification 3D printing system comprising a support frame (12) characterised in that: The support frame (12) is fixedly connected with an X-axis displacement platform (13), the X-axis displacement platform (13) is connected with a mounting platform (20), the mounting platform (20) is provided with a cleaning and drying mounting module (30) and a plurality of feeding modules (40), the support frame (12) is fixedly connected on the support base (11), the support base (11) is provided with a printing forming module (50) for printing forming, the support base (11) is provided with an optical splicing module (60) for multiple exposure projection printing, and the support base (11) is provided with a common reference support module (70) for providing a reference for the bottom of the plurality of feeding modules (40); in the projection forming process, the solidified thin layers of each material constrained by the common reference support module (70) have the same spatial position; The cleaning and drying mounting module (30) comprises an ultrasonic cleaning pool (31), and the ultrasonic cleaning pool (31) is provided with a drying module (32); The feeding module (40) comprises a flexible release material pool (41), the bottom of the flexible release material pool (41) is provided with a flexible release film (42), the side edge of the flexible release material pool (41) is provided with a cavity, the cavity is provided with a floating block (44), the cavity is fixedly connected with a distance sensor (43), the side edge of the flexible release material pool (41) is provided with a negative pressure air suction material removal port, and the flexible release material pool (41) is provided with a gas-liquid interface I (45); The common reference support module (70) comprises a mounting base II (71), the mounting base II (71) is fixedly connected on the support base (11), the mounting base II (71) is fixedly connected with a Z2-axis displacement platform (72), the moving end of the Z2-axis displacement platform (72) is fixedly connected with a cavity connecting frame (73), and the cavity connecting frame (73) is fixedly connected with a high-transmittance support plate (74); A plurality of printing materials are provided through the plurality of feeding modules (40), and the forming surface position of each flexible release material pool (41) is determined through the bottom support of the flexible release material pool (41) by the common reference support module (70) in the forming process, and the high-precision can be guaranteed by the repeated positioning accuracy of the common reference support module (70).

2. The high-resolution multi-material face projection photocuring 3D printing system according to claim 1, characterized in that: The printing forming module (50) comprises a mounting base I (51), the mounting base I (51) is fixedly connected with a Z1-axis displacement platform (52), the moving end of the Z1-axis displacement platform (52) is fixedly connected with a cantilever mounting frame (53), the lower end of the cantilever mounting frame (53) is connected with a base mounting block (55) through a leveling screw (58), a leveling rubber pad (54) is arranged between the cantilever mounting frame (53) and the base mounting block (55), a forming base (56) is connected on the base mounting block (55) through a hand-tightening fastening bolt (57), and the mounting base I (51) is fixedly connected on the support base (11).

3. The high-resolution multi-material vat photopolymerization 3D printing system of claim 1, wherein: The optical splicing module (60) comprises an X-Y superposed axis displacement platform (61) fixedly connected to the support base (11), an Y mounting sliding block (62) arranged on the X-Y superposed axis displacement platform (61), an X mounting sliding block (63) arranged on the Y mounting sliding block (62), a DLP optical engine (64) fixedly connected to the X mounting sliding block (63), a sliding rail (65) fixedly connected to the X-Y superposed axis displacement platform (61), three sliding blocks (66) slidably connected to the sliding rail (65), a lock screw (67) threadedly connected to each sliding block (66), and an aperture unit (68), a lens unit (69) and a mirror unit (610) fixedly connected to the three sliding blocks (66) in sequence.

4. The high-resolution multi-material vat photopolymerization 3D printing system of claim 1, wherein: The gas-liquid supply circulation system (80) comprises a box mounting plate (81), five groups of liquid peristaltic pumps (82) and four groups of gas diaphragm pumps (85) fixedly connected in the box mounting plate (81), two gas-liquid interfaces II (83) arranged on each gas diaphragm pump (85), and a pump driving plate (84) fixedly connected in the box mounting plate (81).

5. The high-resolution multi-material vat photopolymerization 3D printing system of claim 4, wherein: The gas-liquid supply circulation system (80) comprises a box mounting plate (81), five groups of liquid peristaltic pumps (82) and four groups of gas diaphragm pumps (85) fixedly connected in the box mounting plate (81), two gas-liquid interfaces II (83) arranged on each gas diaphragm pump (85), and a pump driving plate (84) fixedly connected in the box mounting plate (81).

6. The high-resolution multi-material vat photopolymerization 3D printing system of claim 5, wherein: The gas-liquid supply circulation system (80) comprises a box mounting plate (81), five groups of liquid peristaltic pumps (82) and four groups of gas diaphragm pumps (85) fixedly connected in the box mounting plate (81), two gas-liquid interfaces II (83) arranged on each gas diaphragm pump (85), and a pump driving plate (84) fixedly connected in the box mounting plate (81).

7. The high-resolution multi-material vat photopolymerization 3D printing system of claim 1, wherein: The gas-liquid supply circulation system (80) comprises a box mounting plate (81), five groups of liquid peristaltic pumps (82) and four groups of gas diaphragm pumps (85) fixedly connected in the box mounting plate (81), two gas-liquid interfaces II (83) arranged on each gas diaphragm pump (85), and a pump driving plate (84) fixedly connected in the box mounting plate (81). The gas-liquid supply circulation system (80) comprises a box mounting plate (81), five groups of liquid peristaltic pumps (82) and four groups of gas diaphragm pumps (85) fixedly connected in the box mounting plate (81), two gas-liquid interfaces II (83) arranged on each gas diaphragm pump (85), and a pump driving plate (84) fixedly connected in the box mounting plate (81).

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