CN115070898A - Ceramic 3D printing hardware control system based on DLP - Google Patents
Ceramic 3D printing hardware control system based on DLP Download PDFInfo
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- CN115070898A CN115070898A CN202210657174.XA CN202210657174A CN115070898A CN 115070898 A CN115070898 A CN 115070898A CN 202210657174 A CN202210657174 A CN 202210657174A CN 115070898 A CN115070898 A CN 115070898A
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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
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- 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
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
A ceramic 3D printing hardware control system based on DLP comprises an upper computer layer, a lower computer layer and mechanical equipment; utilize host computer layer and lower computer layer to control the mechanical equipment layer, make the host computer layer carry out mechanical motion control through the printing equipment of lower computer layer to the mechanical equipment layer to and make the host computer layer carry out projection exposure control to the DLP ray apparatus on mechanical equipment layer, can carry out discrete control to printing equipment and DLP ray apparatus like this, improve the efficiency that ceramic 3D printed, simplify the operating procedure repeatability that ceramic 3D printed, and reduce ceramic 3D's manufacturing cost.
Description
[ technical field ] A
The invention relates to the field of ceramic 3D printing, in particular to a ceramic 3D printing hardware control system based on DLP.
[ background of the invention ]
Ceramic 3D printing is the printing and molding of fluidic ceramic materials into ceramic parts with specific three-dimensional shapes using a 3D printer. The existing 3D printer forms three-dimensional solid parts in a layer-by-layer mask stacking mode, but the three-dimensional forming steps are multiple, the production and manufacturing period is long, and the operation process of three-dimensional forming is complicated along with the more complicated structure of the parts, so that the generation efficiency of the three-dimensional ceramic parts is reduced, and the production cost of the three-dimensional ceramic parts is increased.
[ summary of the invention ]
The invention aims to provide a ceramic 3D printing hardware control system based on DLP, which utilizes an upper computer layer and a lower computer layer to control a mechanical equipment layer, so that the upper computer layer controls the mechanical motion of printing equipment of the mechanical equipment layer through the lower computer layer, and the upper computer layer controls the projection exposure of a DLP optical machine of the mechanical equipment layer, thus being capable of separately controlling the printing equipment and the DLP optical machine, improving the efficiency of ceramic 3D printing, simplifying the repeatability of the operation steps of ceramic 3D printing and reducing the production cost of ceramic 3D.
The purpose of the invention is realized by the following technical scheme:
a DLP-based ceramic 3D printing hardware control system comprising:
an upper computer layer, a lower computer layer and a mechanical equipment layer;
the mechanical equipment layer comprises printing equipment and a DLP optical machine; the printing equipment is used for printing and molding the ceramic slurry to obtain a 3D ceramic model; the DLP optical machine is used for performing projection exposure processing on the 3D ceramic model to obtain a 3D ceramic device;
the lower computer layer comprises a terminal;
the upper computer layer comprises a PC; the PC machine is indirectly communicated with the printing equipment through the terminal machine, and the terminal machine analyzes and converts a mechanical control command from the PC machine and then sends the mechanical control command to the printing equipment so as to control the mechanical motion of the printing equipment; and the PC machine also directly sends an optical machine control command and an image signal to the DLP optical machine so as to control the projection exposure processing working state of the DLP optical machine.
In one embodiment, the printing apparatus includes a ceramic paste discharging part and a ceramic paste forming part; the ceramic slurry discharging part is used for outputting ceramic slurry at a preset flow rate; the ceramic slurry forming part is used for shaping the ceramic slurry output by the ceramic slurry discharging part, so that a 3D ceramic model is obtained.
In one embodiment, the ceramic discharge portion comprises a slurry nozzle and a slurry delivery valve; the slurry delivery valve is connected with the slurry nozzle so as to control whether ceramic slurry is delivered to the slurry nozzle or not; the slurry nozzle is used for outputting ceramic slurry in a mode of adjustable flow.
In one embodiment, the ceramic slurry forming part comprises a movable table; the movable table top is used for receiving and bearing the ceramic slurry output by the ceramic slurry discharging part, and the output ceramic slurry can be stacked to have a specific shape through the movement of the movable table top, so that a 3D ceramic model is obtained.
In one embodiment, the movable table comprises:
the forming platform is used for receiving and bearing the ceramic slurry output by the ceramic slurry discharging part;
a guide rail for cooperating with the forming table;
the power output end of the motor is in driving connection with the forming platform through a lead screw and is used for driving the forming platform to move along the guide rail;
and the limit switch is arranged at the tail end of the guide rail and is used for limiting the movement amplitude of the forming platform along the guide rail.
In one embodiment, the guide rail is a two-dimensional guide rail, and the two-dimensional guide rail comprises a first sub-rail extending along a first direction and a second sub-rail extending along a second direction on a horizontal plane, wherein the first direction and the second direction are perpendicular to each other; the limit switch is an infrared photoelectric limit switch.
In one embodiment, the motor can also drive the forming platform to move along a third direction perpendicular to the first direction and the second direction through the lead screw, so that the ceramic slurry output by the ceramic slurry discharging part can be stacked on the forming platform to form ceramic slices with a specific thickness.
In one embodiment, when the motor drives the forming platform to move along the third direction through the lead screw, the number of driving pulses input to the motor satisfies the following formula:
in the above formula, θ represents the number of driving pulses input to the motor; d s Representing a movement distance of the forming platform in a third direction; 2 represents an electronic gear ratio, namely the number of driving pulses required by the motor to rotate for one circle;
representing the lead of the lead screw.
In one embodiment, the PC directly sends a light intensity control command to the DLP optical machine, so as to adjust the ultraviolet irradiation light intensity of the DLP optical machine for performing the ultraviolet projection exposure processing on the 3D ceramic model.
In one embodiment, the PC sends image signals directly to the DLP light engine, causing the DLP light engine to project ultraviolet illumination light having a particular image shape distribution on the 3D ceramic model.
Compared with the prior art, the invention has the following beneficial effects:
the application provides a pottery 3D prints hardware control system based on DLP, utilize host computer layer and lower computer layer to control the mechanical equipment layer, make the host computer layer carry out mechanical motion control to the printing apparatus on mechanical equipment layer through lower computer layer, and make the host computer layer carry out projection exposure control to the DLP ray apparatus on mechanical equipment layer, can carry out discrete control to printing apparatus and DLP ray apparatus like this, improve the efficiency that pottery 3D printed, simplify the operating procedure repeatability that pottery 3D printed, and reduce pottery 3D's manufacturing cost.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts. Wherein:
fig. 1 is a schematic structural diagram of a DLP-based ceramic 3D printing hardware control system provided in the present application.
[ detailed description ] embodiments
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "comprising" and "having," as well as any variations thereof, in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, in an embodiment of the present application, a DLP-based ceramic 3D printing hardware control system includes an upper computer layer, a lower computer layer, and a mechanical device layer.
The upper computer layer is used as upper control equipment of the whole ceramic 3D printing hardware control system and can control the lower computer layer and the mechanical equipment layer. The lower computer layer is used as a communication medium between the upper computer layer and the mechanical equipment layer, and can convert the control instruction sent by the upper computer layer and then send the control instruction to the mechanical equipment layer, so that the compatibility between the control instruction and the mechanical equipment layer can be ensured. The mechanical equipment layer is used as operation execution equipment for ceramic 3D printing, and printing and photocuring treatment of ceramic slurry are carried out according to a control instruction of the upper computer layer, so that the ceramic 3D part with the required shape and structure is obtained.
Specifically, the mechanical equipment layer comprises printing equipment and a DLP optical machine; the printing equipment is used for printing and molding the ceramic slurry to obtain a 3D ceramic model; and the DLP optical machine is used for carrying out projection exposure processing on the 3D ceramic model to obtain the 3D ceramic device. The lower layer includes a terminal, which may be, but is not limited to, a portable computer. The upper computer layer comprises a PC. The PC machine is indirectly communicated with the printing equipment through the terminal machine, and the terminal machine analyzes and converts a mechanical control command from the PC machine and then sends the mechanical control command to the printing equipment so as to control the mechanical movement of the printing equipment; the PC machine also directly sends the light machine control command and the image signal to the DLP light machine so as to control the projection exposure processing working state of the DLP light machine.
Optionally, the printing apparatus comprises a ceramic paste discharge section and a ceramic paste forming section; the ceramic slurry discharging part is used for outputting ceramic slurry at a preset flow rate; the ceramic slurry forming part is used for shaping the ceramic slurry output by the ceramic slurry discharging part, so that a 3D ceramic model is obtained. Ceramic thick liquids ejection of compact portion can with ceramic thick liquids duct connection, when ceramic thick liquids were carried to ceramic thick liquids ejection of compact portion to ceramic thick liquids conveyer pipe, ceramic thick liquids ejection of compact portion can outwards export ceramic thick liquids with predetermined flow velocity to form the ceramic thick liquids pile body that corresponding shape distributes on ceramic thick liquids shaping portion, ceramic thick liquids pile up the body and can stereotype in ceramic thick liquids shaping portion afterwards, obtain 3D ceramic model.
The ceramic discharge portion includes a slurry nozzle and a slurry delivery valve. The slurry delivery valve is connected with the slurry nozzle so as to control whether ceramic slurry is delivered to the slurry nozzle or not; the slurry nozzle is used for outputting ceramic slurry in a mode of adjustable flow. The slurry delivery valve is used for connecting the ceramic slurry delivery pipe and the slurry nozzle, when the slurry delivery valve is closed, the ceramic slurry delivery to the slurry nozzle is stopped, and when the slurry delivery valve is opened, the ceramic slurry is continuously delivered to the slurry nozzle. Meanwhile, the slurry nozzle can control the flow rate of the ceramic slurry output outwards, so that the forming shape and size of the ceramic slurry stacked body can be accurately controlled.
Optionally, the ceramic slurry forming section comprises a movable table. The movable table top is used for receiving and bearing ceramic slurry output by the ceramic slurry discharging part, and the output ceramic slurry can be accumulated to have a specific shape through the movement of the movable table top, so that a 3D ceramic model is obtained. When the ceramic discharging part outputs ceramic slurry outwards, the movable table top can receive the ceramic slurry for bearing output, meanwhile, the movable table top can also move relative to the ceramic discharging part in a three-dimensional space, and in the relative movement process, the ceramic slurry output by the ceramic slurry discharging part can be stacked at different positions of the movable table top in different thicknesses, so that a 3D ceramic model with a specific shape is formed on the movable table top. Wherein the movement of the movable table top is realized by the PC through the terminal.
Optionally, the movable table top comprises: the forming platform is used for receiving the ceramic slurry output by the ceramic slurry discharging part, and the forming platform can be but is not limited to a flat platform; a guide rail for cooperating with the forming table; the power output end of the motor is in driving connection with the forming platform through a lead screw and is used for driving the forming platform to move along the guide rail; and the limit switch is arranged at the tail end of the guide rail and is used for limiting the movement amplitude of the forming platform along the guide rail. The motor drives the forming platform to move through the lead screw, so that the forming platform can move stably along the area limited by the guide rail. In addition, limit switches are arranged at the tail end positions of the two sides of the guide rail, when the forming platform moves to the tail end position of the guide rail, the limit switches are triggered to feed back corresponding trigger instructions to the motor, and at the moment, the motor stops driving the screw rod, so that the forming platform is prevented from continuously moving along the current direction and being separated from the limit of the guide rail.
Optionally, the guide rail is a two-dimensional guide rail, and the two-dimensional guide rail includes a first sub-rail extending in a first direction and a second sub-rail extending in a second direction on a horizontal plane, and the first direction and the second direction are perpendicular to each other. The limit switch is an infrared photoelectric limit switch. The guide rail is arranged to be a two-dimensional guide rail, so that the motor can be driven to move on the two-dimensional plane, and ceramic slurry output by the ceramic slurry discharging part can be accumulated at different positions of the forming platform. The limit switch is set as an infrared photoelectric limit switch, so that the accuracy of the motion limit control of the forming platform on the guide rail can be improved.
Optionally, the motor can also drive the forming platform to move along a third direction perpendicular to the first direction and the second direction through the lead screw, so that the ceramic slurry output by the ceramic slurry discharging part can be accumulated on the forming platform to form ceramic slices with a specific thickness. When the motor drives the forming platform to move along the third direction through the lead screw, the driving pulse number input to the motor meets the following formula:
in the above formula, θ represents the number of driving pulses input to the motor; d s Representing the moving distance of the forming platform in the third direction; 2 represents the electronic gear ratio, namely the driving pulse number required by one rotation of the motor;
indicating the lead of the lead screw.
The motor drives the movement distance of the forming platform in the third direction to determine the accuracy of the thickness of the ceramic slurry output by the ceramic slurry discharging part accumulated on the forming platform. According to the formula, the motor can accurately control the motion amplitude of the lead screw, so that the forming platform is driven to perform stable and accurate motion control in the third direction, and the ceramic slurry is ensured to be accumulated to a preset thickness on the forming platform.
Optionally, the PC directly sends the light intensity control command to the DLP light engine, so as to adjust the ultraviolet irradiation light intensity of the DLP light engine for performing ultraviolet projection exposure processing on the 3D ceramic model. The PC machine sends a Light intensity control command to a DLP Light machine (namely, a digital Light processor Digita Light Processing), and the DLP Light machine projects ultraviolet Light with corresponding intensity to the 3D ceramic model, so that the 3D ceramic model is subjected to ultraviolet projection exposure treatment, and photocuring forming of the 3D ceramic model is realized.
Alternatively, the PC sends the image signal directly to the DLP light engine, causing the DLP light engine to project ultraviolet illumination light having a particular image shape distribution on the 3D ceramic model. The PC machine is through sending image signal to the DLP ray apparatus for the DLP ray apparatus has the ultraviolet irradiation light that specific image shape distributes to 3D ceramic model projection, ensures that 3D ceramic model can obtain assorted ultraviolet curing shaping in different regions, improves 3D ceramic model's structure size accuracy.
The above is only one embodiment of the present invention, and any other modifications based on the concept of the present invention are considered as the protection scope of the present invention.
Claims (10)
1. A ceramic 3D printing hardware control system based on DLP is characterized by comprising: an upper computer layer, a lower computer layer and a mechanical equipment layer;
the mechanical equipment layer comprises printing equipment and a DLP optical machine; the printing equipment is used for printing and forming the ceramic slurry to obtain a 3D ceramic model; the DLP optical machine is used for performing projection exposure processing on the 3D ceramic model to obtain a 3D ceramic device;
the lower computer layer comprises a terminal;
the upper computer layer comprises a PC; the PC machine is indirectly communicated with the printing equipment through the terminal machine, and the terminal machine analyzes and converts a mechanical control command from the PC machine and then sends the mechanical control command to the printing equipment so as to control the mechanical motion of the printing equipment; and the PC machine also directly sends an optical machine control command and an image signal to the DLP optical machine so as to control the projection exposure processing working state of the DLP optical machine.
2. The DLP-based ceramic 3D printing hardware control system according to claim 1, wherein said printing apparatus comprises a ceramic paste discharge section and a ceramic paste forming section; the ceramic slurry discharging part is used for outputting ceramic slurry at a preset flow rate; the ceramic slurry forming part is used for shaping the ceramic slurry output by the ceramic slurry discharging part, so that a 3D ceramic model is obtained.
3. The DLP-based ceramic 3D printing hardware control system of claim 2, wherein the ceramic outfeed section comprises a slurry nozzle and a slurry delivery valve; the slurry delivery valve is connected with the slurry nozzle so as to control whether ceramic slurry is delivered to the slurry nozzle or not; the slurry nozzle is used for outputting ceramic slurry in a mode of adjustable flow.
4. The DLP-based ceramic 3D printing hardware control system of claim 2, wherein said ceramic paste forming section comprises a movable table; the movable table top is used for receiving and bearing the ceramic slurry output by the ceramic slurry discharging part, and the output ceramic slurry can be stacked to have a specific shape through the movement of the movable table top, so that a 3D ceramic model is obtained.
5. The DLP-based ceramic 3D printing hardware control system of claim 4, wherein said movable stage comprises:
the forming platform is used for receiving and bearing the ceramic slurry output by the ceramic slurry discharging part;
a guide rail for cooperating with the forming table;
the power output end of the motor is in driving connection with the forming platform through a lead screw and is used for driving the forming platform to move along the guide rail;
and the limit switch is arranged at the tail end of the guide rail and is used for limiting the movement amplitude of the forming platform along the guide rail.
6. The DLP-based ceramic 3D printing hardware control system according to claim 5, wherein said guide rail is a two-dimensional guide rail comprising a first sub-rail extending in a first direction and a second sub-rail extending in a second direction on a horizontal plane, said first direction and said second direction being perpendicular to each other; the limit switch is an infrared photoelectric limit switch.
7. The DLP-based ceramic 3D printing hardware control system according to claim 6, wherein the motor is further capable of driving the forming platform to move along a third direction perpendicular to the first direction and the second direction through the lead screw, so that the ceramic slurry output by the ceramic slurry discharging part can be accumulated on the forming platform into ceramic slices with a specific thickness.
8. The DLP-based ceramic 3D printing hardware control system according to claim 7, wherein when the motor drives the forming platform to move along the third direction through the lead screw, the number of driving pulses input to the motor satisfies the following formula:
in the above formula, θ represents the number of driving pulses input to the motor; d s Representing a movement distance of the forming platform in a third direction; delta represents the electronic gear ratio, i.e. the number of drive pulses required for one rotation of the motor;
representing the lead of the lead screw.
9. The DLP-based ceramic 3D printing hardware control system according to claim 1, wherein the PC directly sends a light intensity control command to the DLP light engine, so as to adjust the ultraviolet irradiation light intensity of the DLP light engine for performing the ultraviolet projection exposure processing on the 3D ceramic model.
10. The DLP-based ceramic 3D printing hardware control system of claim 7, wherein said PC sends image signals directly to said DLP light engine, causing said DLP light engine to project ultraviolet illumination light having a particular image shape distribution on said 3D ceramic model.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210657174.XA CN115070898A (en) | 2022-06-10 | 2022-06-10 | Ceramic 3D printing hardware control system based on DLP |
| PCT/CN2022/113070 WO2023236348A1 (en) | 2022-06-10 | 2022-08-17 | Dlp-based ceramic 3d printing hardware control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210657174.XA CN115070898A (en) | 2022-06-10 | 2022-06-10 | Ceramic 3D printing hardware control system based on DLP |
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| CN115070898A true CN115070898A (en) | 2022-09-20 |
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| CN202210657174.XA Pending CN115070898A (en) | 2022-06-10 | 2022-06-10 | Ceramic 3D printing hardware control system based on DLP |
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| WO (1) | WO2023236348A1 (en) |
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| US11654617B2 (en) * | 2020-02-05 | 2023-05-23 | Bmf Material Technology Inc. | Immersion projection micro stereolithography |
| KR20210125689A (en) * | 2020-04-09 | 2021-10-19 | 주식회사 쓰리디컨트롤즈 | A bottom-up 3D printing device with heating vat to control high viscosity materials and control method thereof |
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| CN103302860A (en) * | 2013-06-08 | 2013-09-18 | 王健犀 | Light-curing three-dimensional printer based on digital light processing (DLP) projection |
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| WO2023236348A1 (en) | 2023-12-14 |
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