CN205202198U - DLP three -dimensional inkjet printer - Google Patents
DLP three -dimensional inkjet printer Download PDFInfo
- Publication number
- CN205202198U CN205202198U CN201520987015.1U CN201520987015U CN205202198U CN 205202198 U CN205202198 U CN 205202198U CN 201520987015 U CN201520987015 U CN 201520987015U CN 205202198 U CN205202198 U CN 205202198U
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- moulding material
- dlp
- control unit
- dimensional printer
- forming tank
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Abstract
The utility model provides a DLP three -dimensional inkjet printer, DLP three -dimensional inkjet printer includes the shaping groove, the optical grating detection device, the control unit and moulding material filling device, the shaping groove is used for bearing moulding material, the optical grating detection device includes laser output spare and laser receiving spare, laser output spare and laser receiving spare set up on two outsides in shaping groove, laser output spare passes the shaping trough to laser receiving spare transmission detected signal, the control unit receives the feedback signal of laser receiving spare output, the control unit is according to feedback signal to moulding material filling device output switch control signal. Utilize the detected signal to pass the setting of shaping trough, just can detect out liquid level position and whether cross lowly or too high, cross and lowly then need fill the moulding material in shaping groove when the liquid level appearing, realize then that automatic monitoring moulding material surplus and the automatic moulding material that carries on fill, improve DLP three -dimensional inkjet printer's convenience greatly.
Description
Technical field
The utility model relates to a kind of rapid molding device, particularly relates to a kind of three-dimensional printer based on digital light treatment technology.
Background technology
Three-dimensional printer is a kind of mathematical model based on three-dimensional body, utilizes the materials such as plastics, liquid photocurable resin, powdery metal, is constructed the equipment of three-dimensional body by the mode successively printed.
Digital light treatment technology (DigitalLightProcessing, be called for short DLP) be a kind of based on digital micro-mirror wafer (DigitalMicromirrorDevice, be called for short DMD, also claim digital micro element) new-type shadow casting technique, digital micro-mirror wafer is a semiconductor switch, it is integrated with 50-130 ten thousand micromirror on CMOS silicon chip, each micromirror represents a pixel, when a micromirror is in " opening " state, incident light will be reflected and by projection lens by image projection on screen, when a micromirror is in " pass " state, incident light will be reflected onto light absorber and be absorbed.DLP three-dimensional printer is a kind of based on digital light treatment technology, and take liquid photocurable resin as the rapid forming equipment of moulding material, it has the advantage that shaping speed is fast and formed precision is high.
But, because moulding material photosensitive resin is constantly consumed in print procedure, so the photosensitive resin liquid level in forming tank can decline gradually, at this moment to need in print procedure artificially at any time and pay close attention to for a long time, and people is for carrying out supplementary resin, its complex operation, and when manual operation interpolation is improper, liquid resin is easily caused to ooze out or flow out forming tank, cause unnecessary printer contamination, and easily cause foreign matter to enter in forming tank, and then affect the printing precision of 3D printer reality.
Summary of the invention
The purpose of this utility model is to provide a kind of DLP three-dimensional printer realizing monitoring moulding material surplus and automatically carry out moulding material filling.
In order to realize the purpose of this utility model, the utility model provides a kind of DLP three-dimensional printer, comprise forming tank, Grating examinations device, control unit and moulding material filling device, forming tank is for carrying moulding material, Grating examinations device comprises Laser output part and laser pick-off part, Laser output part and laser pick-off part be arranged on forming tank two outside on, Laser output part launches detection signal through shaping trough to laser pick-off part, control unit receives the feedback signal that laser pick-off part exports, control unit according to feedback signal to moulding material filling device output switch control signal.
From such scheme, by arranging Grating examinations device outside forming tank, and output and receiving element are separately positioned on forming tank two outside on, and utilize detection signal to pass the setting of shaping trough, detection signal can pass moulding material or air, just can detect that whether liquid level position is too low or too high, when occurring that liquid level is too low, need to fill the moulding material of forming tank, therefore control unit can be controlled to the unlatching of shaped material filling device according to feedback signal, to forming tank filling molding material, keep the moulding material of right quantity, three-dimensionally shaped need is made artificially to monitor or fill, then realize automatically monitoring moulding material surplus and automatically carrying out moulding material filling, greatly improve the convenience of DLP three-dimensional printer.
Further scheme is, DLP three-dimensional printer also comprises display unit, and control unit is to display unit output display control signal.
Therefore, by the display of display unit, the feedback signal that Grating examinations device feeds back can be carried out dissection process, then the surplus of corresponding moulding material liquid level or moulding material is drawn, by liquid level or show, user is enable intuitively clearly to know the surplus of current moulding material.
Further scheme is, DLP three-dimensional printer also comprises objective table and the projection arrangement of vertically movement, and objective table is arranged on the top of forming tank, and projection arrangement is arranged on the below of forming tank, and projection arrangement is output into picture light through shaping trough to objective table.
Therefore the molding mode of such scheme is conducive to the height upper limit improving model, simply just can be realized the Stereolithography of high height model by structure.
Further scheme is, Laser output part exports multi beam detection signal in the horizontal direction, and multi beam detection signal vertically distributes setting.
Further scheme is, control unit calculates liquid level signal according to feedback signal.
Therefore, vertically distributed by multi beam detection signal and current liquid level height or moulding material surplus accurately can be detected, make control unit can be controlled to the filling that shaped material filling device carries out moulding material more accurately.
Accompanying drawing explanation
Fig. 1 is the structure chart of the utility model DLP three-dimensional printer embodiment.
Fig. 2 is the structure chart after the utility model DLP three-dimensional printer embodiment omits side plate.
Fig. 3 is the imaging schematic diagram of the utility model DLP three-dimensional printer embodiment.
Fig. 4 is the monitoring liquid level First Principle figure of the utility model DLP three-dimensional printer embodiment.
Fig. 5 is monitoring liquid level second schematic diagram of the utility model DLP three-dimensional printer embodiment.
Fig. 6 is the flow chart of the utility model DLP 3 D-printing embodiment of the method.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Detailed description of the invention
DLP three-dimensional printer embodiment:
See figures.1.and.2, Fig. 1 and Fig. 2 is the structure chart of three-dimensional printer 1.DLP three-dimensional printer comprises housing 11, is provided with forming tank 2, objective table 3, moulding material filling device, reflecting element 14, projection arrangement 15 and control unit in housing 11.Moulding material filling device comprises moulding material container 13 and supply pump, the moulding material as light-cured resin solution is stored in moulding material container 13, supply pump is communicated with moulding material container 13 and forming tank 2 ground is arranged, control unit controls the switch of supply pump, makes moulding material container 13 can to forming tank 2 filling molding material.Display unit 12 is arranged on the lower end outer surface of housing 11.
With reference to Fig. 3 composition graphs 2, Fig. 3 is the imaging schematic diagram of DLP three-dimensional printer, it is inner that forming tank 2 is arranged on housing 11, forming tank 2 is made up of light transmissive material, in forming tank 2, carrying is by moulding material 17, be provided with reflecting element 14 and projection arrangement 15 in the below of forming tank 2, projection arrangement 15 is arranged in housing 11 by guide rail telescopically, and projection arrangement 15 has imaging source, digital micro-mirror wafer and bright dipping camera lens.Imaging light in the present embodiment is 400nm to 780nm visible light source, and moulding material is light-cured resin.Because reflecting element 14 is arranged on immediately below forming tank 2, therefore the imaging light that projection arrangement 15 exports is by irradiating towards forming tank 2 after the reflection of reflecting element 14, just can sinter molding after imaging light contacts with moulding material 17.
Objective table 3 is provided with above forming tank 2, objective table 3 comprises the screw rod 31 and support board 32 that vertically arrange, the lower surface of support board 32 is used for the bonding model 16 through laser sintering and moulding, the upper end of support board 32 is connected with screw rod 31, support board 32 can vertically be moved, and namely along with the process of Stereolithography, support board 32 moves from lower to upper, laser irradiates in type model, then completes photocuring three dimensional model printing.
Grating examinations device comprises Laser output part 41 and laser pick-off part 42, Laser output part 41 is arranged on outside the sidewall 21 of forming tank 2, laser pick-off part 42 is arranged on outside the sidewall 22 of forming tank 2, namely Laser output part 41 and laser pick-off part 42 be arranged on forming tank 2 two outside on.
With reference to Fig. 4, Fig. 4 is the level monitoring First Principle figure of forming tank 2, Laser output part 41 exports multi beam detection signal in the horizontal direction, and multi beam detection signal vertically distributes, namely multi beam detection signal distributes along the depth direction of moulding material, what detection signal adopted in the present embodiment is the ultraviolet of about 200nm, detection signal can not make moulding material sinter when passing the moulding material of forming tank 2, and because signal is by moulding material decay obstruct, therefore laser pick-off part 42 place cannot be arrived through the detection signal of moulding material.
With reference to Fig. 5, Fig. 5 is level monitoring second schematic diagram of forming tank 2, when after Stereolithography a period of time, the degree of depth L1 of moulding material drops to degree of depth L2, therefore Laser output part 41 can through air incidence in laser pick-off part 42 by some detection signal, after detection signal is received by laser pick-off part 42, laser pick-off part 42 exports corresponding feedback signal to control unit.Control unit calculates the surplus of the moulding material of the corresponding moulding material degree of depth and correspondence according to the feedback signal that Grating examinations device exports.If the degree of depth of moulding material or the surplus of moulding material are lower than preset value, then control unit is controlled to shaped material filling device to forming tank 2 filling molding material to moulding material filling device output switch control signal, when being filled into predetermined depth threshold value or surplus threshold value, then moulding material then stops corresponding detection signal, and control unit then exports corresponding switch controlling signal and is controlled to the stopping of shaped material filling device to forming tank 2 filling molding material.Simultaneously, control unit calculates liquid level signal or moulding material surplus according to feedback signal, control unit can, according to liquid level signal and moulding material surplus to display unit output display control signal, make display unit show corresponding height value or surplus.
DLP 3 D-printing embodiment of the method:
With reference to Fig. 6, when performing 3 D-printing method, first step S11 is performed, the feedback signal that the laser pick-off part that control unit receives Grating examinations device exports, perform step S12 subsequently, control unit carries out analyzing and processing according to feedback signal and calculates the surplus of moulding material, then step S13 is performed, judge whether surplus is less than or equal to pre-determined lower limit threshold values, surplus as moulding material is less than or equal to pre-determined lower limit threshold values, then perform step S14, control unit exports to moulding material filling device and opens control signal, and make moulding material filling device to filling molding material in forming tank.
Perform step S15 subsequently, the feedback signal that the laser pick-off part that control unit continues to receive Grating examinations device exports, perform step S16 subsequently, control unit carries out analyzing and processing according to feedback signal and calculates the surplus of moulding material, then step S17 is performed, judge whether surplus is more than or equal to preset upper limit threshold values, surplus as moulding material is more than or equal to pre-determined lower limit threshold values, then perform step S18, control unit exports Closed control signal to moulding material filling device, moulding material filling device is stopped to forming tank filling molding material.
Therefore, by arranging Grating examinations device outside forming tank, and output and receiving element are separately positioned on forming tank two outside on, and utilize detection signal to pass the setting of shaping trough, detection signal can pass moulding material or air, just can detect that whether liquid level position is too low or too high, when occurring that liquid level is too low, need to fill the moulding material of forming tank, therefore control unit can be controlled to the unlatching of shaped material filling device according to feedback signal, to forming tank filling molding material, keep the moulding material of right quantity, three-dimensionally shaped need is made artificially to monitor or fill, then realize automatically monitoring moulding material surplus and automatically carrying out moulding material filling, greatly improve the convenience of DLP three-dimensional printer.
Claims (5)
1.DLP three-dimensional printer, comprises
Forming tank, described forming tank is for carrying moulding material;
It is characterized in that:
Grating examinations device, described Grating examinations device comprises Laser output part and laser pick-off part, described Laser output part and described laser pick-off part be arranged on described forming tank two outside on, described Laser output part launches detection signal through described shaping trough to described laser pick-off part;
Control unit, described control unit receives the feedback signal that described laser pick-off part exports;
Moulding material filling device, described control unit according to described feedback signal to described moulding material filling device output switch control signal.
2. DLP three-dimensional printer according to claim 1, is characterized in that:
Described DLP three-dimensional printer also comprises display unit, and described control unit is to described display unit output display control signal.
3. DLP three-dimensional printer according to claim 1, is characterized in that:
Described DLP three-dimensional printer also comprises objective table and projection arrangement, described objective table can vertically move, described objective table is arranged on the top of described forming tank, described projection arrangement is arranged on the below of described forming tank, and described projection arrangement is output into picture light through described shaping trough to described objective table.
4. the DLP three-dimensional printer according to any one of claims 1 to 3, is characterized in that:
Described Laser output part exports detection signal described in multi beam in the horizontal direction, and detection signal described in multi beam vertically distributes setting.
5. DLP three-dimensional printer according to claim 4, is characterized in that:
Described control unit calculates image forming material surplus according to described feedback signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520987015.1U CN205202198U (en) | 2015-12-02 | 2015-12-02 | DLP three -dimensional inkjet printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520987015.1U CN205202198U (en) | 2015-12-02 | 2015-12-02 | DLP three -dimensional inkjet printer |
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| Publication Number | Publication Date |
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| CN205202198U true CN205202198U (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520987015.1U Withdrawn - After Issue CN205202198U (en) | 2015-12-02 | 2015-12-02 | DLP three -dimensional inkjet printer |
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| CN (1) | CN205202198U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105269821A (en) * | 2015-12-02 | 2016-01-27 | 珠海天威飞马打印耗材有限公司 | Dlp three-dimensional printer and printing method thereof |
| WO2017025015A1 (en) * | 2015-08-13 | 2017-02-16 | 珠海天威飞马打印耗材有限公司 | Digital light processing three-dimensional printer |
| CN111645323A (en) * | 2019-03-04 | 2020-09-11 | 安世亚太科技股份有限公司 | Mechanism for replacing trough |
-
2015
- 2015-12-02 CN CN201520987015.1U patent/CN205202198U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017025015A1 (en) * | 2015-08-13 | 2017-02-16 | 珠海天威飞马打印耗材有限公司 | Digital light processing three-dimensional printer |
| CN105269821A (en) * | 2015-12-02 | 2016-01-27 | 珠海天威飞马打印耗材有限公司 | Dlp three-dimensional printer and printing method thereof |
| CN105269821B (en) * | 2015-12-02 | 2019-05-21 | 珠海天威飞马打印耗材有限公司 | DLP three-dimensional printer and its Method of printing |
| CN111645323A (en) * | 2019-03-04 | 2020-09-11 | 安世亚太科技股份有限公司 | Mechanism for replacing trough |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160504 Effective date of abandoning: 20190521 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160504 Effective date of abandoning: 20190521 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |