CN113290845A - High-viscosity and multi-material 3D printing equipment - Google Patents
High-viscosity and multi-material 3D printing equipment Download PDFInfo
- Publication number
- CN113290845A CN113290845A CN202010954842.6A CN202010954842A CN113290845A CN 113290845 A CN113290845 A CN 113290845A CN 202010954842 A CN202010954842 A CN 202010954842A CN 113290845 A CN113290845 A CN 113290845A
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- Prior art keywords
- guide rail
- printing
- forming film
- coating
- viscosity
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Classifications
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- 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
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
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- 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
- B29C64/218—Rollers
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- 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
- B33Y70/00—Materials specially adapted for additive manufacturing
- B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
Abstract
The invention discloses high-viscosity and multi-material 3D printing equipment, which comprises an optical exposure system, a forming film, a rolling module, a plurality of coating modules and a printing platform, wherein the forming film is arranged above the printing platform, the coating modules are arranged at the lower side of the forming film, the rolling module is arranged at the upper side of the forming film, and the optical exposure system is arranged above the forming film. The high-viscosity and multi-material 3D printing equipment can realize the printing of multiple raw materials through the coating modules, and can print high-viscosity materials through the synergistic effect of the coating modules, the rolling module and the printing platform; required leveling time when this equipment can avoid resin material to print has improved the efficiency that 3D printed in the very big degree, and simultaneously, this equipment can print the material that viscosity is big and general multiple printing material.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to high-viscosity multi-material 3D printing equipment.
Background
3D printing (additive manufacturing) is currently one of the most advanced manufacturing fields in the world, with SLA, DLP, SLS and MLS being the most mature and widespread applications.
According to the principle of SLA (stereo lithography), liquid photosensitive resin is injected into a liquid tank, a model is sliced in a layering mode through layering software, laser beams scan the surface of the photosensitive resin point by point according to slicing data, the points are connected into lines, the lines form a plane, and then the resin in the laser scanned area is solidified to form a thin layer. After one layer is solidified, the working table moves downwards by a layer thickness distance to manufacture the next layer, the newly solidified layer is firmly bonded on the previous layer, and the whole product is formed repeatedly.
DLP (digital light processing and forming) forming principle is that liquid photosensitive resin is filled in a liquid tank, a model is sliced in layers through layering software, image data of each layer of slices passes through a DMD (digital micro-mirror device), light energy and graphic exposure control is realized, a two-dimensional picture thin layer is cured by exposure each time, after one layer is cured, a workbench moves by a distance of one layer thickness to manufacture the next layer, the newly cured layer is firmly bonded on the previous layer, and the whole product is formed repeatedly.
No matter SLA or DLP, the printing process all needs to wait for the liquid level for a long time to level, and for the liquid level is leveled, needs control photosensitive resin material's viscosity because when material viscosity is high, liquid mobility can be very low, leads to at the printing in-process, and the unable even liquid thickness layer that forms of setting for that flows of resin on the workstation. Therefore, the viscosity of the photosensitive resin material used in SLA and DLP must be controlled below 500cps, and the material viscosity is too high to be suitable for the processing mode.
The required waiting liquid level flow leveling time of printing in-process leads to printing efficiency lower while, requires that the resin has lower viscosity and less surface tension, reduces resin viscosity and can sacrifice the mechanical properties of resin and because the surface tension of liquid can the factor, the resin liquid level can not absolute level completely, finally leads to the great deviation of thickness appearance that prints, influences the size precision of printing the model.
And also, since a sufficient amount of resin needs to be placed in the resin tank every time of printing, waste of material is caused.
At present, SLA and DLP processing modes can only print a single material at each time, and can not process multiple materials together.
Disclosure of Invention
The invention aims to provide novel high-viscosity and multi-material 3D printing equipment, which can print high-viscosity materials such as photosensitive resin, ceramic slurry, metal slurry and the like and can print multiple materials simultaneously.
In order to achieve the above purpose, the following scheme is provided: the utility model provides a high viscosity and many materials 3D printing apparatus, optical exposure system, shaping membrane, roll extrusion module, a plurality of coating module and print platform, the top at print platform is installed to the shaping membrane, the downside at the shaping membrane is installed to the coating module, the upside of shaping membrane is equipped with the roll extrusion module, the top of shaping membrane is equipped with optical exposure system.
Further, the coating module comprises a coating roller, a feeding bin, a pneumatic valve and a resin tank, the feeding bin and the coating roller are connected with the coating roller through a polytetrafluoroethylene hose, the pneumatic valve is arranged at the position of the polytetrafluoroethylene hose, the coating roller is installed in the resin tank, a central shaft of the coating roller is installed on a guide rail, the guide rail is parallel to a printing platform, the coating roller is connected with a servo driving module, and the servo driving module is arranged at the position of the guide rail.
Further, the rolling module comprises a linear moving hob and a guide rail, the guide rail is arranged in parallel along the length direction of the printing platform, the linear moving hob is installed on the guide rail, a servo driving module is arranged on the guide rail, and the linear moving hob is a cylinder.
Further, the rolling module comprises a linear moving scraper and a guide rail, the guide rail is arranged in parallel along the length direction of the printing platform, the linear moving scraper is installed on the guide rail, and a servo driving module is arranged on the guide rail.
Further, the bottom of print platform is equipped with the material accumulator.
The working principle and the advantages of the invention are as follows: the high-viscosity and multi-material 3D printing equipment can realize the printing of multiple raw materials through the coating modules, and can print high-viscosity materials through the synergistic effect of the coating modules, the rolling module and the printing platform; required leveling time when this equipment can avoid resin material to print has improved the efficiency that 3D printed in the very big degree, and simultaneously, this equipment can print the material that viscosity is big and general multiple printing material.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the linearly moving hob of the present invention;
FIG. 3 is a schematic view of the construction of the linearly moving blade of the present invention;
fig. 4 is a partial enlarged view of fig. 3 of the present invention.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include:
1. the device comprises an optical exposure system, 2. a forming film, 3. a rolling module, 4. a coating roller, 5. a feeding bin, 6. a pneumatic valve, 7. a printing platform, 8. a material recovery tank, 9. a resin tank, 10. a linear moving hob and 11. a linear moving scraper.
As shown in fig. 1 to 4, the high-viscosity and multi-material 3D printing device comprises an optical exposure system, a forming film, a rolling module, a plurality of coating modules and a printing platform, wherein the forming film is installed above the printing platform, the coating modules are installed at the lower side of the forming film, the rolling module is arranged at the upper side of the forming film, and the optical exposure system is arranged above the forming film.
The optical exposure system is used for providing specific wavelength light required by printing, identifying two-dimensional slice data of the three-dimensional model and converting the two-dimensional slice data into a two-dimensional picture; the forming film is used for curing and forming a required two-dimensional picture at the focal position of the optical exposure system; the rolling module is used for providing specific pressure above the forming film, so that the resin material below the forming film is stressed to form a set layer thickness, and ultralow layer thickness printing of 3um or more can be realized; the coating module is used for uniformly coating a layer of required material below the forming film on different types of printing materials, and when a plurality of coating modules are installed, the materials coated on the forming film can be switched during printing, so that multi-material printing is realized; the printing platform is used for model forming and placing.
As shown in fig. 1, the coating module comprises a coating roller, a feeding bin, a pneumatic valve and a resin tank, wherein the feeding bin and the coating roller are connected with the coating roller through a polytetrafluoroethylene hose, the pneumatic valve is arranged at the position of the polytetrafluoroethylene hose, the coating roller is installed in the resin tank, a central shaft of the coating roller is installed on a guide rail, the guide rail is parallel to a printing platform, the coating roller is connected with a servo driving module, and the servo driving module is arranged at the position of the guide rail.
The central shafts at two ends of the coating roller are arranged at two sides of the resin tank, meanwhile, the coating roller is provided with a central driving device for driving the coating roller to conduct self-transmission, and the guide rail is provided with a servo driving module for driving the coating roller to move back and forth along the guide rail; in the process of moving the coating roller, a certain amount of material is provided by the supply bin and enters the resin tank of the coating roller, and the coating roller performs self-rotation. Meanwhile, as the surface energy of the high-viscosity material is larger, a layer of material can be coated on the coating roller, so that the material can be continuously coated on the surface of the formed film in the process that the coating roller moves left and right along the guide rail, the thickness of the surface material coated on the lower surface of the formed film is controlled by adjusting the distance between the coating roller and the formed film in the process, and meanwhile, the coating roller can not be directly contacted with the formed film, so that the film is prevented from being damaged by a roller. And in this way, material can be applied to specific areas according to the area of the printing area without the need to fill the fluid bath with material as is the case with SLA and DLP. Greatly saves the material required by printing and avoids waste.
As shown in fig. 2, the rolling module includes a linearly moving hob and a guide rail, the guide rail is arranged along the horizontal direction of the printing platform, the linearly moving hob is installed on the guide rail, the guide rail is provided with a servo driving module, and the linearly moving hob is a cylinder.
The linear moving hob is a cylinder, two ends of a central shaft of the cylinder are respectively installed on the two guide rails and move along the guide rails, a servo driving module is arranged on one guide rail and can drive the cylinder to roll back and forth on the forming film, and the servo driving module comprises a servo driving motor and a gear set. Meanwhile, in order to avoid the formed film from being worn by the back and forth rolling of the cylinder, the roughness of the surface of the roller is lower than 0.4 um.
As shown in fig. 3 and 4, the rolling module includes a linearly moving scraper and a guide rail, the guide rail is disposed along a horizontal direction of the printing platform, the linearly moving scraper is mounted on the guide rail, and the guide rail is provided with a servo driving module.
Wherein, can use the linear movement scraper to replace the linear movement hobbing cutter, the both ends of linear movement scraper are installed on two guide rails, and move along the guide rail, install servo drive module on one of them guide rail, drive the linear movement scraper round trip movement on the shaping membrane, the bottom of linear movement scraper is a hemisphere structure, surface roughness will be less than 0.4um simultaneously, avoid damaging the shaping membrane, the main objective of linear movement scraper structure is to the material more than 5000cps of viscosity, because the scraper is when moving, there is a fore-and-aft shearing force, when to high viscosity material, it will be better than the linear movement hobbing cutter to strike off the effect.
As shown in fig. 1, a material recovery groove is formed at the bottom of the printing platform.
Wherein, the material recovery tank can recover the materials dropped by the coating roller, and the environment pollution caused by the materials is avoided.
The specific implementation process is as follows:
this high viscosity and many materials 3D printing apparatus operation, at first install the focus position at optical exposure system with the shaping membrane, the coating roll coats a layer photosensitive material on shaping membrane lower surface, print platform rises to the position apart from shaping membrane set distance, the roll extrusion module is moved about, roll the shaping membrane flat, make the material of shaping membrane lower part be the set thickness, the picture of optical exposure system discernment printing, and expose the shaping membrane, the resin that corresponds the picture region is by photocuring, print platform descends, the coating roll is again to shaping membrane lower surface coating material, so the circulation is reciprocal, realize three-dimensional structure on print platform.
The high-viscosity and multi-material 3D printing equipment can realize the printing of multiple raw materials through the coating modules, and can print high-viscosity materials through the synergistic effect of the coating modules, the rolling module and the printing platform; required leveling time when this equipment can avoid resin material to print has improved the efficiency that 3D printed in the very big degree, and simultaneously, this equipment can print the material that viscosity is big and general multiple printing material.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics of the embodiments is not described herein in any greater extent than that known to persons of ordinary skill in the art at the filing date or before the priority date of the present invention, so that all of the prior art in this field can be known and can be applied with the ability of conventional experimental means before this date. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the applicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (5)
1. The utility model provides a high viscosity and many materials 3D printing apparatus which characterized in that: the optical film coating device comprises an optical exposure system, a forming film, a rolling module, a plurality of coating modules and a printing platform, wherein the forming film is arranged above the printing platform, the coating modules are arranged on the lower side of the forming film, the rolling module is arranged on the upper side of the forming film, and the optical exposure system is arranged above the forming film.
2. The high viscosity and multi-material 3D printing apparatus according to claim 1, wherein: the coating module comprises a coating roller, a feeding bin, a pneumatic valve and a resin tank, wherein the feeding bin and the coating roller are connected with the coating roller through a polytetrafluoroethylene hose, the pneumatic valve is arranged at the position of the polytetrafluoroethylene hose, the coating roller is installed in the resin tank, a central shaft of the coating roller is installed on a guide rail, the guide rail is parallel to a printing platform, the coating roller is connected with a servo driving module, and the servo driving module is arranged at the position of the guide rail.
3. The high viscosity and multi-material 3D printing apparatus according to claim 1, wherein: the rolling module comprises a linear moving hob and a guide rail, the guide rail is arranged in parallel along the length direction of the printing platform, the linear moving hob is installed on the guide rail, a servo driving module is arranged on the guide rail, and the linear moving hob is a cylinder.
4. The high viscosity and multi-material 3D printing apparatus according to claim 1, wherein: the rolling module comprises a linear moving scraper and a guide rail, the guide rail is arranged in parallel along the length direction of the printing platform, the linear moving scraper is installed on the guide rail, and a servo driving module is arranged on the guide rail.
5. The high viscosity and multi-material 3D printing apparatus according to claim 1, wherein: and a material recovery tank is arranged at the bottom of the printing platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010954842.6A CN113290845A (en) | 2020-09-11 | 2020-09-11 | High-viscosity and multi-material 3D printing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010954842.6A CN113290845A (en) | 2020-09-11 | 2020-09-11 | High-viscosity and multi-material 3D printing equipment |
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| Publication Number | Publication Date |
|---|---|
| CN113290845A true CN113290845A (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010954842.6A Pending CN113290845A (en) | 2020-09-11 | 2020-09-11 | High-viscosity and multi-material 3D printing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115366409A (en) * | 2022-08-08 | 2022-11-22 | 西安铂力特增材技术股份有限公司 | Multi-material additive manufacturing equipment and multi-material additive manufacturing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539482A (en) * | 2019-09-23 | 2019-12-06 | 深圳摩方新材科技有限公司 | High-speed resin coating 3D printing system |
| CN111168995A (en) * | 2020-01-03 | 2020-05-19 | 深圳摩方新材科技有限公司 | Multi-material photocuring 3D printing equipment for film coating and using method thereof |
-
2020
- 2020-09-11 CN CN202010954842.6A patent/CN113290845A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539482A (en) * | 2019-09-23 | 2019-12-06 | 深圳摩方新材科技有限公司 | High-speed resin coating 3D printing system |
| CN111168995A (en) * | 2020-01-03 | 2020-05-19 | 深圳摩方新材科技有限公司 | Multi-material photocuring 3D printing equipment for film coating and using method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115366409A (en) * | 2022-08-08 | 2022-11-22 | 西安铂力特增材技术股份有限公司 | Multi-material additive manufacturing equipment and multi-material additive manufacturing method |
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Application publication date: 20210824 |