CN116373299A - Composite 3D printing device and printing method thereof - Google Patents
Composite 3D printing device and printing method thereof Download PDFInfo
- Publication number
- CN116373299A CN116373299A CN202310209795.6A CN202310209795A CN116373299A CN 116373299 A CN116373299 A CN 116373299A CN 202310209795 A CN202310209795 A CN 202310209795A CN 116373299 A CN116373299 A CN 116373299A
- Authority
- CN
- China
- Prior art keywords
- printing
- platform
- groove
- transfer platform
- composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007639 printing Methods 0.000 title claims abstract description 340
- 238000010146 3D printing Methods 0.000 title claims abstract description 57
- 239000002131 composite material Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000012546 transfer Methods 0.000 claims abstract description 85
- 238000001125 extrusion Methods 0.000 claims abstract description 59
- 238000012545 processing Methods 0.000 claims abstract description 34
- 238000013519 translation Methods 0.000 claims abstract description 20
- 239000011347 resin Substances 0.000 claims description 58
- 229920005989 resin Polymers 0.000 claims description 58
- 230000003287 optical effect Effects 0.000 claims description 43
- 239000000463 material Substances 0.000 claims description 42
- 239000007788 liquid Substances 0.000 claims description 19
- 238000004590 computer program Methods 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 43
- 230000005540 biological transmission Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 239000006072 paste Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/245—Platforms or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/255—Enclosures for the building material, e.g. powder containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/35—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a composite 3D printing device and a printing method thereof, wherein the composite 3D printing device comprises a printing platform, a translation part, an extrusion printing head, a transfer platform, a rotation part, a lifting part and a light machine, wherein a first printing groove and a second printing groove are arranged on the printing platform side by side, and the bottom surface of the first printing groove and the bottom surface of the second printing groove are both light-transmitting planes; the translation component is connected with the printing platform; the extrusion printing head and the transfer platform are arranged above the printing platform, and the rotating part and the lifting part are connected with the transfer platform; the ray apparatus sets up in printing platform below, sets up with shifting the platform relatively. According to the invention, two printing modes of ink direct writing and digital light processing are respectively and independently carried out on the printing platform, the two printing modes are combined, the printing precision is improved, the method has great significance on the 3D printing flexible electronic and soft robots, and the function-sensing integrated manufacturing and forming of the robots and devices are conveniently realized.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a composite 3D printing device and a printing method thereof.
Background
Existing 3D printing techniques include both Direct Ink Writing (DIW) 3D printing techniques and Digital Light Processing (DLP) 3D printing techniques, where DIW is a printing technique that deposits a specific pattern on a print plane as a nozzle moves by storing ink (e.g., resin, conductive paste, elastomer, hydrogel, etc.) in a printhead and pressing the ink through the nozzle onto the print plane. The DLP is a printing technology for directly solidifying and forming a model by immersing a printing plane in resin liquid and projecting a specific pattern through an optical machine by utilizing the characteristic that a liquid photosensitive polymer is solidified under laser irradiation, and the printing mode has high speed and high precision and can print a structure with a complex shape.
With the continuous improvement of 3D printing technology, multi-material printing is an important research direction. The DIW is used for printing multiple materials independently, a plurality of printing heads are required to be used for printing, and the printing can be performed only layer by layer along a printing path, so that the time is long; the DLP is used alone to carry out multi-material printing, needs to use a plurality of resin tanks, and the material quantity is very big, and the resin that remains on the printing plane in the printing process removes in the resin tank of different types moreover, causes pollution problem, also inconvenient resin material recovery. In view of the poor effect of performing multi-material printing by using DIW or DLP alone, there have been methods of performing multi-material printing by combining the advantages of DIW and DLP in the prior art, for example, the paper titled "Integrating Digital Light Processing with Direct Ink Writing for Hybrid 3D Printing of Functional Structures and Devices" published in the "additivemanufacturing" describes a method of performing multi-material printing by combining a DLP printing system in which ultraviolet light is projected from top to bottom with a DIW printing system. Therefore, it is not easy to think that the two printing modes are combined, the printing method can be applied to a printing soft robot, the flexible substrate of the DLP printing robot is printed, then the conductive circuit is printed on a designated layer through DIW, and the integrated printing of the driving and sensing integrated robot can be realized.
However, existing DIWs and DLPs each have certain limitations. The DIW printing system can print on demand along a printing path without pollution problem, but the thickness of a printing model is usually limited by the diameter of a nozzle, the deposition process is limited by the moving path of the nozzle, and the forming speed is low; after the DLP printing system prints out the model, resin can remain on the printing plane and the surface of the model, and pollution is easy to cause.
Therefore, the existing method for printing the model by combining the two printing modes has the defects of insufficient overall precision, pollution problem and unfavorable integrated printing of the driving and sensing integrated robot, and the prior art still needs to be improved and developed.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a composite 3D printing device and a printing method thereof, which aims to solve the problems that the existing 3D printing technology combining DIW and DLP is not enough in precision, pollution exists, and integrated printing of a driving and sensing integrated robot cannot be completed.
The technical scheme of the invention is as follows:
the composite 3D printing device comprises a printing platform, a translation part, an extrusion printing head, a transfer platform, a rotation part, a lifting part and a light machine, wherein a first printing groove and a second printing groove are arranged on the printing platform side by side, and the bottom surface of the first printing groove and the bottom surface of the second printing groove are light-transmitting planes; the translation component is connected with the printing platform and used for driving the printing platform to horizontally move; the extrusion printing head is arranged above the printing platform and is used for performing direct ink writing printing in the first printing groove; the transfer platform is arranged above the printing platform; the rotating component is connected with the transfer platform and is used for driving the transfer platform to rotate; the lifting component is connected with the transfer platform; the optical machine is arranged below the printing platform, and the optical machine is arranged opposite to the transferring platform.
The composite 3D printing device comprises a shell, an extrusion structure arranged in the shell, and a discharge nozzle arranged on the shell, wherein the shell is hollow and is used for storing resin; the extrusion structure is used for extruding the resin from the discharge nozzle.
The compound 3D printing device comprises an XYZ-axis control structure, wherein the XYZ-axis control structure is connected with the extrusion printing head and used for controlling the extrusion printing head to move along a printing path.
The composite 3D printing device is characterized in that a plurality of extrusion printing heads are arranged; the second printing groove is provided with a plurality of printing grooves.
The application also discloses a composite 3D printing method which is used for the composite 3D printing device; the method comprises the following steps of:
s100, designing a multi-material model through three-dimensional modeling software, dividing the multi-material model into a plurality of layers, and independently storing entities of each material in each layer;
s200, selecting a corresponding extrusion printing head according to the material and processing requirements, selecting a corresponding resin material, pouring the resin material into a second printing groove, planning a printing path of the extrusion printing head, generating a printing picture of a light machine, and integrating the printing path and the printing picture of the same layer;
s300, based on the printing path and the printing picture, performing direct ink writing printing in a first printing groove through the extrusion printing head; irradiating the second printing groove through an optical machine, and performing digital optical processing printing on a transfer platform;
and S400, repeatedly executing the step S200 and the step S300 until the multi-material model is printed layer by layer.
The step S300 specifically includes:
s310, moving the extrusion printing head into a first printing groove;
s320, performing direct ink writing printing along the printing path in a first printing groove through the extrusion printing head to obtain a sensing circuit layer;
s330, the extrusion printing head is moved out of the first printing groove, the printing platform is driven to move through the translation component, the first printing groove is moved between the transfer platform and the optical machine, and the transfer platform is driven to descend to be in contact with the sensing circuit layer through the lifting component; transferring the sensing circuit layer to the transfer platform through an optical machine;
s340, driving the printing platform to move out of the first printing groove through the lifting component, driving the printing platform to move through the translation component, and moving the second printing groove between the transfer platform and the optical machine;
s350, driving the transfer platform to descend below the resin liquid level through the lifting component, and performing digital light processing printing through a light machine to obtain a flexible substrate layer;
s360, driving the transfer platform to centrifugally rotate through the rotating component to remove residual resin on the transfer platform and the model.
The step S360 specifically includes:
s361, the lifting component drives the transfer platform to ascend until the transfer platform is separated from the resin in the second printing groove;
s362, starting the rotating component to drive the transfer platform to rotate, removing residual resin on the transfer platform and the model, and returning to the position before rotation.
The step S361 specifically includes: the lifting part drives the transfer platform to rise to a position higher than the resin liquid level in the second printing groove and lower than the opening of the second printing groove.
The application also discloses a computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the composite 3D printing method as described in any one of the above when executing the computer program.
The application also discloses a computer readable storage medium having stored thereon a computer program, wherein the computer program when processed and executed implements the steps of the composite 3D printing method as described in any of the above.
Compared with the prior art, the embodiment of the invention has the following advantages:
the composite 3D printing device disclosed by the invention is provided with the translation part to drive the printing platform to move in the horizontal direction, and the printing platform can be switched back and forth between the extrusion printing head and the optical machine in the printing process so as to alternately perform direct ink writing printing and digital light processing printing.
Specifically, the first part is printed in the first printing groove of the printing platform, the extrusion printing head ejects the material downwards to the bottom surface of the first printing groove for printing, and the printing precision is high. After printing of the first part is completed, the first printing groove can be moved between the optical machine and the transfer platform, and the printed part model is fixed on the transfer platform through curing of the optical machine. And then, moving the second printing groove between the optical machine and the transfer platform, injecting resin liquid into the second printing groove, and performing digital light processing printing through the optical machine to obtain a model of the second part. In particular, when the digital light processing printing is carried out, a second printing groove with a transparent bottom is adopted, and the laser is emitted from bottom to top by the optical machine to carry out solidification, so that the influence of the surface tension of the resin liquid level on the model is reduced, the thickness of the layer of the digital light processing printing is controlled conveniently, and the precision of the digital light processing printing is improved. After printing, the transfer platform is lifted to be above the resin liquid level through the cooperation of the lifting part and the rotating part, and residual resin on the transfer platform and the model can be removed in a rotating centrifugal mode, so that the pollution problem is avoided.
In general, when the composite 3D printing device disclosed by the invention is applied to a printing soft robot, the printing of the flexible substrate and the printing of the sensing circuit can be alternately performed with high precision and no pollution, and the integrated printing of the driving and sensing integrated robot is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of a composite 3D printing device according to the present invention;
FIG. 2 is a flow chart of a composite 3D printing method of the present invention;
FIG. 3 is a flowchart of step S300 of the composite 3D printing method of the present invention;
fig. 4 to 12 are printing flowcharts of the composite 3D printing device according to the present invention.
10, a printing platform; 11. a first printing tank; 12. a second printing tank; 20. extruding a print head; 21. a housing; 22. an extrusion structure; 23. a discharge nozzle; 30. a transfer platform; 40. a light machine; 51. a sensing circuit layer; 52. a flexible substrate layer.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the following description will make clear and complete descriptions of the technical solutions of the embodiments of the present invention with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, in an embodiment of the present application, a composite 3D printing apparatus is disclosed, including: the printing device comprises a printing platform 10, a translation part, an extrusion printing head 20, a transfer platform 30, a rotation part, a lifting part and a light machine 40, wherein a first printing groove 11 and a second printing groove 12 are arranged on the printing platform 10 side by side, and the bottom surface of the first printing groove 11 and the bottom surface of the second printing groove 12 are light-transmitting planes; the translation component is connected with the printing platform 10 and is used for driving the printing platform 10 to horizontally move; the extrusion printing head 20 is arranged above the printing platform 10 and is used for performing direct ink writing printing in the first printing groove 11; the transfer platform 30 is arranged above the printing platform 10; the rotating component is connected with the transfer platform 30 and is used for driving the transfer platform 30 to rotate; the lifting component is connected with the transfer platform 30; the optical bench 40 is disposed below the printing platform 10, and the optical bench 40 is disposed opposite to the transfer platform 30.
The translational component (not shown in the drawing) of the composite 3D printing device disclosed in this embodiment may be an assembly structure of a motor and a transmission gear set, or an assembly structure of a motor and a sliding rail, or an assembly structure of a manipulator grabbing, which is used for fixing the printing platform 10 and driving the printing platform 10 to move horizontally on a horizontal plane with a fixed height.
It should be noted that, in this embodiment, only the structural collocation type of the translation component is exemplified, but the protection scope of the present invention is not limited thereto, and other types of translation components can achieve the technical effects disclosed in the present application, and as equivalent substitutions of the inventive concept, the equivalent substitution should also be included in the protection scope of the present application.
Specifically, the translation component drives the printing platform 10 to move in the horizontal direction, and the printing platform 10 can be switched back and forth between the extrusion printing head 20 and the optical machine 40 in the printing process, so as to alternately perform direct ink writing printing and digital light processing printing.
Specifically, the first portion is printed in the first printing groove 11 of the printing platform 10, and the extrusion printhead 20 ejects the material downward onto the bottom surface of the first printing groove 11 to print, so that the printing accuracy is high. After printing the first part, the first printing groove 11 can be moved between the optical machine 40 and the transfer platform 30, and the bottom surface of the first printing groove 11 is set to be a light-transmitting plane, so that the laser emitted by the optical machine 40 can pass through the first printing groove 11 to irradiate the surface of the transfer platform 30, and the printed part of the model is fixed on the transfer platform 30 by curing the laser through the optical machine 40. Then, the second printing tank 12 is moved between the optical machine 40 and the transfer table 30, and the resin liquid is injected into the second printing tank 12, and the bottom surface of the second printing tank 12 is also light-transmissive, so that the laser light emitted from the optical machine 40 can be transmitted. Digital light processing printing is performed by means of a light engine 40 to obtain a model of the second part.
In particular, the method of solidifying the digital light processing printing by emitting laser from bottom to top by the optical machine 40 reduces the influence of the surface tension of the resin liquid surface on the model, is beneficial to controlling the layer thickness of the digital light processing printing and improves the precision of the digital light processing printing.
After printing, the transfer platform 30 is lifted to be above the resin liquid level by matching a lifting component (not shown in the drawing) with a rotating component (not shown in the drawing), and residual resin on the transfer platform 30 and the model can be removed by rotating and centrifuging, so that the pollution problem is avoided. It should be noted that, the lifting component disclosed in the embodiment includes, but is not limited to, a telescopic rod, a telescopic bracket, a hydraulic pump, and other structures; the rotating member disclosed in the present embodiment includes, but is not limited to, a combination structure of a rotation motor and a transmission gear, a combination structure of a rotation motor and a transmission lever, a combination structure of electromagnetic drive, and the like.
In general, when the composite 3D printing device disclosed in the embodiment is applied to a printing soft robot, printing of a flexible substrate and printing of a sensing circuit can be performed alternately with high precision and without pollution, which is beneficial to integral printing of a driving and sensing integrated robot.
It should be noted that, the optical engine 40 in this embodiment includes, but is not limited to, an ultraviolet optical engine 40, and the ultraviolet optical engine 40 projects the pattern to be printed on the printing plane of the transfer platform 30, so that the resin liquid in the specific area on the printing platform 10 can be cured.
As shown in fig. 1, as one implementation of the present embodiment, the extrusion printhead 20 is disclosed to include a housing 21, an extrusion structure 22 disposed in the housing 21, and a discharge nozzle 23 disposed on the housing 21, the housing 21 being hollow for storing resin; the extrusion structure 22 is used to extrude the resin from the discharge nozzle 23. The resin is directly stored in the housing 21, and each extrusion printhead 20 is used for extruding one resin material, so that printing can be performed as required in the process of multi-material molding, materials are saved, and various materials can be printed only by increasing the number of extrusion printheads 20. In actual operation, when the first printing tank 11 moves below the extrusion printhead 20, direct ink writing is performed by moving the extrusion printhead 20 downward and extruding resin from the discharge nozzles 23 onto the bottom surface of the first printing tank 11.
Specifically, as another implementation of the present embodiment, it is disclosed that the extrusion printhead 20 includes an XYZ-axis control structure (not shown in the drawing) for controlling the discharge nozzle 23 to move along the printing path. Specifically, the XYZ axis control structure includes, but is not limited to, a combination structure of a mechanical arm, a sliding rail, a transmission gear, and the like. The movement of the extrusion printing head 20 in the three-dimensional space is regulated and controlled by setting the XYZ-axis control structure, so that the extrusion printing head 20 is accurately controlled to move along a preset printing path, and the accuracy of direct ink writing and printing is improved. In addition, the composite 3D printing device disclosed in the embodiment can be provided with a plurality of extrusion printheads 20, so that the movement of the extrusion printheads 20 can be conveniently and orderly controlled accurately through an XYZ axis control structure, and the multiple printing can be performed in a sectional manner, thereby being beneficial to molding a model with a complex structure.
Specifically, as another implementation of the present embodiment, it is disclosed that the extrusion printhead 20 is provided in plurality. In this embodiment, a plurality of extrusion printheads 20 are provided for storing and printing a plurality of materials, and the adaptability of the composite 3D printing device to the usage scenario of multi-material printing is increased. In this embodiment, a plurality of second printing grooves 12 may be provided, and digital optical processing printing of multiple materials may be performed by providing a plurality of second printing grooves 12, so as to further improve the adaptability of the composite 3D printing device to the usage scenario of multiple material printing.
As another embodiment of the present application, as shown in fig. 2, a composite 3D printing method is disclosed for a composite 3D printing apparatus as described above; the method comprises the following steps of:
s100, designing a multi-material model through three-dimensional modeling software, dividing the multi-material model into a plurality of layers, and independently storing entities of each material in each layer;
s200, selecting a corresponding extrusion printing head 20 according to the material and processing requirements, selecting a corresponding resin material, pouring the resin material into a second printing groove 12, planning a printing path of the extrusion printing head 20, generating a printing picture of the optical machine 40, and integrating the printing path and the printing picture of the same layer;
s300, based on the printing path and the printing picture, performing direct ink writing printing in the first printing groove 11 through the extrusion printing head 20; illuminating the second printing tank 12 through an optical machine 40, and performing digital light processing printing on a transfer platform 30;
and S400, repeatedly executing the step S200 and the step S300 until the multi-material model is printed layer by layer.
The composite 3D printing method disclosed in the embodiment is simple to operate, high in processing speed, and capable of dividing a multi-material model by modeling in advance and adopting CAD software or other model processing software, then finishing direct ink writing printing and digital light processing printing layer by layer, and is high in precision in a single-layer printing process, resin liquid cannot be remained on the model, so that pollution problems are avoided, the next-layer printing is prevented from being influenced, and the precision of the whole printing process is improved. In addition, when different layers adopt different resin solutions to carry out digital light processing printing, no pollution is caused, and the recycling rate of the resin solutions is improved.
In general, when the composite 3D printing method disclosed in the embodiment is adopted to print the soft robot, the flexible substrate and the sensing circuit of the robot can be synchronously printed, the printing time is saved, the printing precision is improved, and the advantages of direct ink writing printing and digital light processing printing are perfectly combined.
As shown in fig. 3, as one implementation manner of this embodiment, it is disclosed that the step S300 specifically includes:
s310, moving the extrusion printing head 20 into the first printing groove 11;
s320, as shown in fig. 4, performing direct ink writing printing along the printing path in the first printing slot 11 by the extrusion printhead 20, to obtain a sensing circuit layer 51;
s330, as shown in FIG. 5, the extrusion printing head 20 is moved out of the first printing groove 11, the printing platform 10 is driven to move by the translation component, the first printing groove 11 is moved between the transfer platform 30 and the optical machine 40, and the transfer platform 30 is driven to descend to be in contact with the sensing circuit layer 51 by the lifting component; transferring the sensing circuit layer 51 onto the transfer platform 30 through the optical machine 40;
s340, as shown in FIG. 6, the lifting component drives the printing platform 10 to move out of the first printing groove 11, and the translation component drives the printing platform 10 to move, so that the second printing groove 12 is moved between the transfer platform 30 and the optical machine 40;
s350, as shown in FIG. 7, driving the transfer platform 30 to descend below the resin liquid level by the lifting component, and performing digital light processing printing by the optical machine 40 to obtain a flexible substrate layer 52;
s360, as shown in FIG. 8, the transfer platform 30 is driven by the rotating component to centrifugally rotate, so that the residual resin on the transfer platform 30 and the model is removed.
In the printing method disclosed in this embodiment, after the preset model of the layer is printed in the second printing tank 12, centrifugal rotation is performed to remove the residual resin on the transfer platform 30 and the model, so that the surface of the model is clean, the printing process of the next layer is convenient, and pollution to the resin liquid of the next layer can be avoided. In addition, the resin removed by centrifugal rotation at each time finally flows back into the second printing tank 12, so that the recovery is facilitated, and the material cost is saved.
As shown in fig. 8, as another implementation of the present embodiment, it is disclosed that the direct ink writing printing and the digital light processing printing in the present embodiment may be performed simultaneously. When the transfer stage 30 transfers the sensor circuit layer 51 of the previous layer from the first printing tank 11, printing of the sensor circuit layer 51 of the next layer of the model can be performed immediately. As shown in fig. 9, when the digital light processing printing of the previous layer is completed, the printing stage 10 may be moved immediately, the first printing tank 11 is aligned again to the transfer stage 30, and the sensing circuit layer 51 of the subsequent layer is transferred through the transfer stage 30; then, as shown in fig. 10, 11 and 12, a digital light processing printing process of the subsequent layer is performed. Therefore, the method is alternately carried out, so that the printing speed can be increased, and the printing efficiency can be improved until a complete multi-material model is printed.
Specifically, as another implementation manner of this embodiment, it is disclosed that the step S360 specifically includes:
s361, the lifting component drives the transfer platform 30 to lift up until the transfer platform is separated from the resin in the second printing groove 12;
s362, starting the rotating component to drive the transfer platform 30 to rotate, removing residual resin on the transfer platform 30 and the model, and returning to the position before rotation.
The rotary member disclosed in this embodiment drives the transfer platform 30 back to the pre-rotation position to facilitate printing of the next layer of the model. When each layer of printing starts, printing is started from the same angle of the model, so that the three-dimensional modeling software can conveniently plan a printing path of the extrusion printing head 20 and a printing picture projected by the optical machine 40, the calculated amount of the three-dimensional modeling software is reduced, errors in path planning are avoided, and the printing accuracy is improved.
Specifically, as another implementation manner of this embodiment, it is disclosed that the step S361 specifically includes: the lifting member drives the transfer platform 30 to rise to a position higher than the resin liquid level in the second printing tank 12 and lower than the opening of the second printing tank 12. The transfer platform 30 disclosed in this embodiment is located in the second printing tank 12 when rotating, and the resin thrown centrifugally can be collected in the second printing tank 12, so that the resin is convenient to recycle and reuse, and pollution caused by throwing the resin into the surrounding environment is avoided.
As another embodiment of the present application, a computer device is disclosed, comprising a memory storing a computer program and a processor, wherein the processor implements the steps of the composite 3D printing method as described in any of the above when executing the computer program.
As another embodiment of the present application, a computer readable storage medium is disclosed, on which a computer program is stored, wherein the computer program when processed and executed implements the steps of the composite 3D printing method as described in any of the above.
To sum up, the application discloses a compound 3D printing device, wherein includes: the printing device comprises a printing platform 10, a translation part, an extrusion printing head 20, a transfer platform 30, a rotation part, a lifting part and a light machine 40, wherein a first printing groove 11 and a second printing groove 12 are arranged on the printing platform 10 side by side, and the bottom surface of the first printing groove 11 and the bottom surface of the second printing groove 12 are light-transmitting planes; the translation component is connected with the printing platform 10 and is used for driving the printing platform 10 to horizontally move; the extrusion printing head 20 is arranged above the printing platform 10 and is used for performing direct ink writing printing in the first printing groove 11; the transfer platform 30 is arranged above the printing platform 10; the rotating component is connected with the transfer platform 30 and is used for driving the transfer platform 30 to rotate; the lifting component is connected with the transfer platform 30; the optical bench 40 is disposed below the printing platform 10, and the optical bench 40 is disposed opposite to the transfer platform 30. The composite 3D printing device disclosed by the invention is provided with the translation component to drive the printing platform 10 to move in the horizontal direction, and the printing platform 10 can be switched back and forth between the extrusion printing head 20 and the optical machine 40 in the printing process so as to alternately perform direct ink writing printing and digital light processing printing. The method that the light-transmitting second printing groove 12 at the bottom and the light machine 40 emit laser from bottom to top to solidify is adopted when the digital light processing printing is carried out, so that the influence of the surface tension of the resin liquid level on the model is reduced, the thickness of the layer of the digital light processing printing is controlled conveniently, and the precision of the digital light processing printing is improved. After printing, the transfer platform 30 is lifted to be above the resin liquid level by the cooperation of the lifting component and the rotating component, and residual resin on the transfer platform 30 and the model can be removed in a rotary centrifugal mode, so that the pollution problem is avoided. In general, when the composite 3D printing device disclosed by the invention is applied to a printing soft robot, the printing of the flexible substrate and the printing of the sensing circuit can be alternately performed with high precision and no pollution, and the integrated printing of the driving and sensing integrated robot is facilitated.
It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other.
The invention is described by taking the composite 3D printing device as an example to describe the specific structure and the working principle of the invention, but the application of the invention is not limited by the composite 3D printing device, and the invention can be applied to the production and the use of other similar workpieces.
It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (10)
1. A composite 3D printing device, comprising:
the printing device comprises a printing platform, wherein a first printing groove and a second printing groove are arranged on the printing platform side by side, and the bottom surface of the first printing groove and the bottom surface of the second printing groove are both light-transmitting planes;
the translation component is connected with the printing platform and used for driving the printing platform to horizontally move;
the extrusion printing head is arranged above the printing platform and is used for performing direct ink writing printing in the first printing groove;
the transfer platform is arranged above the printing platform;
the rotating component is connected with the transfer platform and used for driving the transfer platform to rotate;
the lifting component is connected with the transfer platform;
and the optical machine is arranged below the printing platform and is opposite to the transferring platform.
2. The composite 3D printing device of claim 1, wherein the extrusion printhead comprises a housing, an extrusion structure disposed within the housing, and a discharge nozzle disposed on the housing, the housing being hollow for storing resin; the extrusion structure is used for extruding the resin from the discharge nozzle.
3. The composite 3D printing device of claim 2, wherein the composite 3D printing device comprises XYZ-axis control structures connected to the extrusion printhead for controlling the extrusion printhead to move along a print path.
4. A composite 3D printing device according to any of claims 1 to 3, wherein the extrusion printhead is provided with a plurality of; the second printing groove is provided with a plurality of printing grooves.
5. A composite 3D printing method for a composite 3D printing apparatus as claimed in any one of claims 1 to 4; the method is characterized by comprising the following steps of:
s100, designing a multi-material model through three-dimensional modeling software, dividing the multi-material model into a plurality of layers, and independently storing entities of each material in each layer;
s200, selecting a corresponding extrusion printing head according to the material and processing requirements, selecting a corresponding resin material, pouring the resin material into a second printing groove, planning a printing path of the extrusion printing head, generating a printing picture of a light machine, and integrating the printing path and the printing picture of the same layer;
s300, based on the printing path and the printing picture, performing direct ink writing printing in a first printing groove through the extrusion printing head; irradiating the second printing groove through an optical machine, and performing digital optical processing printing on a transfer platform;
and S400, repeatedly executing the step S200 and the step S300 until the multi-material model is printed layer by layer.
6. The composite 3D printing method according to claim 5, wherein the step S300 specifically includes:
s310, moving the extrusion printing head into a first printing groove;
s320, performing direct ink writing printing along the printing path in a first printing groove through the extrusion printing head to obtain a sensing circuit layer;
s330, the extrusion printing head is moved out of the first printing groove, the printing platform is driven to move through the translation component, the first printing groove is moved between the transfer platform and the optical machine, and the transfer platform is driven to descend to be in contact with the sensing circuit layer through the lifting component; transferring the sensing circuit layer to the transfer platform through optical machine projection;
s340, driving the printing platform to move out of the first printing groove through the lifting component, driving the printing platform to move through the translation component, and moving the second printing groove between the transfer platform and the optical machine;
s350, driving the transfer platform to descend below the resin liquid level through the lifting component, and performing digital light processing printing through a light machine to obtain a flexible substrate layer;
s360, driving the transfer platform to centrifugally rotate through the rotating component to remove residual resin on the transfer platform and the model.
7. The composite 3D printing method according to claim 6, wherein the step S360 specifically includes:
s361, the lifting component drives the transfer platform to ascend until the transfer platform is separated from the resin in the second printing groove;
s362, starting the rotating component to drive the transfer platform to rotate, removing residual resin on the transfer platform and the model, and returning to the position before rotation.
8. The composite 3D printing method according to claim 7, wherein the step S361 specifically includes: the lifting part drives the transfer platform to rise to a position higher than the resin liquid level in the second printing groove and lower than the opening of the second printing groove.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the composite 3D printing method of any of claims 5 to 8 when the computer program is executed.
10. A computer readable storage medium having stored thereon a computer program, characterized in that the computer program when processed and executed implements the steps of the composite 3D printing method according to any of claims 5 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310209795.6A CN116373299A (en) | 2023-02-24 | 2023-02-24 | Composite 3D printing device and printing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310209795.6A CN116373299A (en) | 2023-02-24 | 2023-02-24 | Composite 3D printing device and printing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116373299A true CN116373299A (en) | 2023-07-04 |
Family
ID=86962455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310209795.6A Pending CN116373299A (en) | 2023-02-24 | 2023-02-24 | Composite 3D printing device and printing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116373299A (en) |
-
2023
- 2023-02-24 CN CN202310209795.6A patent/CN116373299A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017088796A1 (en) | High-speed reciprocating color 3d printer | |
| EP0581445B1 (en) | Method and apparatus for the computer-controlled manufacture of three-dimensional objects from computer data | |
| KR100221295B1 (en) | Method and system for computer-controlled manufacture of three dimensioal object from computer data | |
| AU2010278663B2 (en) | 3D printing on a rotating cylindrical surface | |
| CN104908320B (en) | UV photocuring 3D printer and build up accuracy guarantee method | |
| US20150165695A1 (en) | Three dimensional printing apparatus | |
| CN103587118B (en) | A kind of photocuring 3D printer based on helical scanning, compliant interface | |
| CN104309128A (en) | Three-dimensional (3D) printing device and printing method thereof | |
| CN103189186A (en) | Three-dimensional shaping device and three-dimensional shaping method | |
| CN104842565A (en) | Fast liquid interface 3D (3-dimensional) printing system | |
| CN1857930A (en) | Three dimension color printing quick forming device and method | |
| CN107009614B (en) | The Method of printing of a kind of 3D product and for the 3D printer in this method | |
| CN109435501A (en) | Four workbench duplex skill ink jet printers | |
| US20190368913A1 (en) | Three-dimensional printing device | |
| CN111674037A (en) | Multi-material photocuring 3D printer | |
| CN111923402A (en) | Rigid-flexible coupling part mixed additive manufacturing method based on liquid gel environment | |
| CN1325368C (en) | Method for rapid manufacturing three-dimensional complex micro structure | |
| CN116373299A (en) | Composite 3D printing device and printing method thereof | |
| CN108068310B (en) | Three-dimensional printing method | |
| CN109849338A (en) | The full-color 3D printing method of 3DP and device based on air brushing colour shell | |
| JP6296448B2 (en) | Modeling unit and three-dimensional additive manufacturing apparatus | |
| CN110901048A (en) | Printing transfer type photocuring three-dimensional color printing technology and device | |
| JP6828267B2 (en) | Equipment for modeling 3D objects, programs, methods for modeling 3D objects, methods for creating modeling data for 3D objects | |
| CN111497241B (en) | DLP type 3D printing system | |
| JP7087482B2 (en) | Three-dimensional modeling device and three-dimensional modeling method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |