CN106965423B - Liquid containing mechanism of mobile 3D printer - Google Patents
Liquid containing mechanism of mobile 3D printer Download PDFInfo
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- CN106965423B CN106965423B CN201710113202.0A CN201710113202A CN106965423B CN 106965423 B CN106965423 B CN 106965423B CN 201710113202 A CN201710113202 A CN 201710113202A CN 106965423 B CN106965423 B CN 106965423B
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- transparent
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- stripes
- fixing seat
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- 230000007246 mechanism Effects 0.000 title claims abstract description 45
- 239000007788 liquid Substances 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 84
- 238000007639 printing Methods 0.000 claims abstract description 59
- 239000010410 layer Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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Classifications
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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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
Abstract
The invention discloses a mobile liquid containing mechanism of a 3D printer, which comprises a material tank for containing printing solution and a driving assembly for driving the material tank to slide, wherein the bottom of the material tank is provided with a plurality of transparent stripes with equal width and consistent intervals, non-transparent stripes are arranged between every two adjacent transparent stripes, the width of each transparent stripe is greater than that of each non-transparent stripe, and a height difference is arranged between each transparent stripe and each non-transparent stripe; an exposure opening of the exposure mechanism corresponds to the printing platform, and the exposure and curing light directly irradiates the printing platform through the transparent stripes at the bottom of the material tank. According to the liquid containing mechanism of the mobile 3D printer, the transparent stripes and the non-transparent stripes are arranged at intervals, so that the curing time can be greatly shortened; the height difference is arranged between the transparent stripes and the non-transparent stripes, so that the printing platform can be quickly separated from the bottom of the material tank, and further, the quick printing is realized.
Description
Technical Field
The invention relates to a movable liquid containing mechanism of a 3D printer, and belongs to the field of 3D printing.
Background
The 3D printer is a machine that uses an additive manufacturing technique (i.e., a rapid prototyping technique) and its principle is that data and raw materials are put into the 3D printer and the machine processes the product layer by layer. At present, when a 3D printer is exposed and cured, the whole layer is integrally cured, and when the curing area is large, the curing time is long, so that the printing speed is greatly influenced; in addition, after the curing process is finished, in order to realize the rapid separation of the cured layer from the material tank for holding the solution, an inclined pulling type (such as an inclined pulling component described in patent CN104309128a of "a 3D printing apparatus and a printing method thereof") or a rotary material tank is generally used, the former has a complex structure and a long separation time, and the latter is only suitable for some printing solutions with high viscosity.
In view of the above, the present inventors have studied this, and developed a liquid containing mechanism for a mobile 3D printer, which resulted in the present disclosure.
Disclosure of Invention
The invention aims to provide a liquid containing mechanism of a mobile 3D printer, which has the characteristics of short curing time, high printing speed and the like.
In order to achieve the above object, the solution of the present invention is:
the liquid containing mechanism of the mobile 3D printer comprises a material tank for containing printing solution and a driving assembly for driving the material tank to slide, wherein a plurality of transparent stripes with equal width and consistent intervals are arranged at the bottom of the material tank, non-transparent stripes are arranged between every two adjacent transparent stripes, the width of each transparent stripe is larger than that of each non-transparent stripe, and a height difference is formed between each transparent stripe and each non-transparent stripe; an exposure opening of the exposure mechanism corresponds to the printing platform, and the exposure and curing light directly irradiates the printing platform through the transparent stripes at the bottom of the material tank.
Preferably, the width of the transparent stripes is 3 to 20mm, and the width difference between the non-transparent stripes and the transparent stripes is 1 to 5mm.
Preferably, the difference between the horizontal heights of the transparent stripes and the non-transparent stripes is 0.1mm-10mm.
Preferably, the driving assembly comprises a material groove fixing seat, a guide rail and a driving part for driving the material groove fixing seat to move, the guide rail is fixedly installed on the base panel, the bottom of the material groove fixing seat is installed on the guide rail in a sliding mode through a sliding block, the side edge of the material groove fixing seat is connected with the driving part, and the moving direction of the material groove fixing seat is perpendicular to the length extending direction of the transparent stripes.
Preferably, the driving part comprises a driving motor, a first gear connected with the driving motor and a second gear meshed with the first gear, the second gear is connected with the material groove fixing seat through an elastic part, and the driving motor drives the first gear and the second gear to move so as to drive the material groove fixing seat to slide along the guide rail.
Preferably, the second gear is a bar gear, two ends of the bar gear are respectively connected with the material groove fixing seat through linear springs, and the linear springs can enable the driving motor to have a certain buffering space during driving, so that the driving motor is prevented from being damaged due to excessive rotation.
Preferably, a positioner is further arranged on the panel of the base of the mobile 3D printer and is positioned at the moving tail end of the material groove fixing seat and used for accurately adjusting the moving distance of the material groove.
Preferably, the positioner is a micrometer.
Preferably, a position sensor is further arranged on the base panel of the mobile 3D printer and used for accurately positioning the initial position of the material groove.
Compared with the existing 3D printer, the mobile 3D printer liquid containing mechanism has the following advantages:
1. the curing time is short: transparent stripes and non-transparent stripes are arranged at intervals at the bottom of the material tank, so that the curing area is reduced, the heat dissipation of the cured printing solution is fast, and the curing time is greatly shortened;
2. the smoothing speed is high: the height difference is arranged between the transparent stripes and the non-transparent stripes at the bottom of the material tank, so that a certain gap is reserved between the bottom of the material tank and the printing platform, the printing platform can be quickly separated from the bottom of the material tank, and the material tank can be quickly printed and separated from the printing platform in the process of moving left and right;
3. the printing speed is high: the curing time is short, and the material groove is smooth and fast, so that the whole printing time can be greatly shortened and is 2 to 10 times of the printing speed of a common 3D printer.
The invention is described in further detail below with reference to the figures and specific embodiments.
Drawings
Fig. 1 is a schematic perspective view of a mobile 3D printer according to the present embodiment;
fig. 2 is a top view of the mobile 3D printer of the present embodiment;
FIG. 3 is a top view of the material tank of this embodiment;
fig. 4 is a schematic perspective view of the material tank of this embodiment.
Detailed Description
The liquid containing mechanism is applied to the mobile 3D printer shown in the figures 1-2, and the mobile 3D printer comprises a base 1, and an exposure mechanism 2, a printing mechanism 3, a liquid containing mechanism 4 and a control mechanism 5 which are arranged on the base 1. In this embodiment, the base includes a bottom plate 11, an upper plate 12, and a plurality of columns 13 located between the bottom plate 11 and the upper plate 12, wherein the exposure mechanism 2 and the control mechanism 5 are fixedly installed on the bottom plate 11, and the printing mechanism 3 and the liquid containing mechanism 4 are installed on the upper plate 12. The exposure mechanism 2 is a projector, and specifically, a DLP projector may be used. Printing mechanism 3 includes module 31, slidable mounting printing platform 32 on module 31, printing platform 32 slides from top to bottom through the perpendicular lead screw that sets up in module 31 realization, and printing platform 32 links to each other with the lead screw, and the lead screw links to each other with screw motor, and through screw motor drive lead screw rotation, and then drive printing platform 32 and remove, at the printing in-process, printing platform 32 can rise at the uniform velocity. The control mechanism 5 is controlled by a microprocessor, and the control mechanism 5 is respectively connected with the exposure mechanism 2, the printing mechanism 3 and the liquid containing mechanism 4 and is used for controlling the actions of all the mechanisms.
The liquid containing mechanism 4 comprises a material tank 41 for containing printing solution and a driving component for driving the material tank 41 to horizontally slide, as shown in fig. 3-4, a plurality of transparent stripes 411 with equal width and uniform intervals are arranged at the bottom of the material tank 41, non-transparent stripes 412 are formed between every two adjacent transparent stripes 411, and the width of each transparent stripe 411 is larger than the width 412 of each non-transparent stripe. The transparent stripes 411 are used for transmitting the light of the exposure mechanism, the non-transparent stripes 412 are used for blocking the light of the exposure mechanism, and the non-transparent stripes 412 can be realized in various ways, such as arranging a non-transparent film at the bottom of a transparent material groove, or performing frosting treatment on the bottom of the transparent material groove. In this embodiment, the width of the transparent stripe 411 is 7mm, and the width of the non-transparent stripe 412 is 5mm. In order to facilitate the rapid separation of the printing platform 32 from the material slot 41, the height difference between the transparent stripes 411 and the non-transparent stripes 412 is generally 0.1mm to 10mm, and specifically, according to the size of the material slot 41, the larger the area of the material slot 41 is, the larger the widths of the transparent stripes 411 and the non-transparent stripes 412 are, and the larger the height difference is, in this embodiment, the plane where the transparent stripes 411 are located is 0.2mm higher than the plane where the non-transparent stripes 412 are located. The exposure port of the exposure mechanism 2 corresponds to the printing platform 32, and the exposure curing light directly irradiates the printing platform through the transparent stripes 411 at the bottom of the material groove 41, so that the curing of the corresponding area is realized.
The driving assembly comprises a material groove fixing seat 42, a guide rail 43 and a driving part for driving the material groove fixing seat to move, the guide rail 43 is fixedly installed on the upper panel 12 of the machine base, the bottom of the material groove fixing seat 42 is slidably installed on the guide rail 43 through a sliding block 44, the side edge of the material groove fixing seat 42 is connected with the driving part, and the moving direction of the material groove fixing seat 42 is perpendicular to the length extending direction of the transparent stripes 411.
In this embodiment, the driving part includes driving motor 45, first gear 46 who links to each other with driving motor 45, second gear 47 with first gear 46 engaged with, second gear 47 adopts bar gear, second gear 47 passes through elastic component 48 and links to each other with material groove fixing base 42, and bar gear's both ends link to each other with material groove fixing base 42 through linear spring respectively, through linear spring, have certain buffer space when can making driving motor 45 drive, prevent that driving motor 45 from rotating excessively and impaired. The working principle of the driving part is as follows: the first gear 46 and the second gear 47 are driven by the driving motor 45, so that the material tank fixing seat 42 is driven by the elastic member 48 to slide along the guide rail 43.
For the accurate displacement who adjusts material groove 41, be equipped with locator 49 on the frame top panel 12, locator 49 specifically can adopt the micrometer that the level was placed, can adjust the displacement of material groove 41 through the micrometer, specifically when using, for the protection micrometer avoids colliding and influences the precision, generally can place a position adjustable stopper 491 between material groove 41 and locator 49, through the indirect displacement who adjusts material groove 41 of stopper 491. The positioner 49 is positioned at the moving end of the material groove fixing seat 42,
in order to ensure the accurate positioning of the initial position of the material tank 41, a position sensor 40 is further arranged on the upper panel 12 of the machine base, and the position sensor 40 is generally arranged at the moving initial end of a material tank fixing seat 42.
The printing method of the mobile 3D printer comprises the following steps:
step 4, the exposure mechanism 2 projects the projection image to the printing platform 32 through the transparent stripe 411 area again, so that the printing solution in the projection range is solidified and is pasted on the printing platform 32, at this time, the whole layer of the solidified layer is solidified, the material groove 41 starts to move, the solidified layer of the printing platform 32 is separated from the bottom of the material groove 41 along with the movement of the material groove 41, the printing platform 32 is lifted upwards by a solidified layer distance, and the material groove 41 returns to the initial position;
and 5, repeating the printing step to perform second-layer curing until the whole printing process is finished.
According to the mobile 3D printer and the printing method thereof, the transparent stripes 411 and the non-transparent stripes 412 are arranged at intervals, so that the curing area is reduced, the heat dissipation of the cured printing solution is fast, and the curing time is greatly shortened; a height difference is arranged between the transparent stripes 411 and the non-transparent stripes 412 at the bottom of the material groove 41, so that a certain gap is left between the bottom of the material groove 41 and the printing platform 32, the printing platform 32 can be quickly separated from the bottom of the material groove, and the material groove 41 can be quickly printed and separated in the process of moving left and right; the printing platform 32 can be quickly moved away from the bottom of the material groove 31, and the material groove 41 is smooth and fast due to the short curing time, so that the whole printing time can be greatly shortened and is 2 to 10 times of the printing speed of a common 3D printer.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.
Claims (5)
1. Liquid mechanism is flourished to portable 3D printer, its characterized in that: the printing device comprises a material groove for containing printing solution and a driving assembly for driving the material groove to slide, wherein a plurality of transparent stripes with the same width and the same interval are arranged at the bottom of the material groove, non-transparent stripes are arranged between every two adjacent transparent stripes, the width of each transparent stripe is larger than that of each non-transparent stripe, a height difference is formed between each transparent stripe and each non-transparent stripe, and the horizontal height difference between each transparent stripe and each non-transparent stripe is 0.1-10 mm; the exposure opening of the exposure mechanism corresponds to the printing platform, the exposure curing light passes through the transparent stripes at the bottom of the material tank and penetrates the printing platform directly, the driving component comprises a material tank fixing seat, a guide rail and a driving part for driving the material tank fixing seat to move, the guide rail is fixedly installed on the base panel, the bottom of the material tank fixing seat is installed on the guide rail in a sliding mode through a sliding block, the side edge of the material tank fixing seat is connected with the driving part, the moving direction of the material tank fixing seat is perpendicular to the length extending direction of the transparent stripes, the driving part comprises a driving motor, a first gear connected with the driving motor and a second gear meshed with the first gear, the second gear is connected with the material tank fixing seat through an elastic part and drives the first gear and the second gear to move through the driving motor, so that the material tank fixing seat is driven to slide along the guide rail, the second gear is a bar gear, and two ends of the bar gear are connected with the material tank fixing seat through a linear spring respectively.
2. The mobile 3D printer liquid containing mechanism of claim 1, wherein: the width of the transparent stripes is 3-20 mm, and the width difference between the nontransparent stripes and the transparent stripes is 1-5 mm.
3. The mobile 3D printer liquid containing mechanism of claim 1, characterized in that: the mobile 3D printer is characterized in that a positioner is further arranged on the panel of the base of the mobile 3D printer and is positioned at the moving tail end of the material groove fixing seat and used for accurately adjusting the moving distance of the material groove.
4. The mobile 3D printer liquid containing mechanism of claim 3, wherein: the positioner adopts a micrometer.
5. The mobile 3D printer liquid containing mechanism of claim 1, wherein: and a position sensor is further arranged on the panel of the base of the mobile 3D printer and used for accurately positioning the initial position of the material groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710113202.0A CN106965423B (en) | 2017-02-28 | 2017-02-28 | Liquid containing mechanism of mobile 3D printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710113202.0A CN106965423B (en) | 2017-02-28 | 2017-02-28 | Liquid containing mechanism of mobile 3D printer |
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| Publication Number | Publication Date |
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| CN106965423A CN106965423A (en) | 2017-07-21 |
| CN106965423B true CN106965423B (en) | 2023-04-07 |
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| CN201710113202.0A Active CN106965423B (en) | 2017-02-28 | 2017-02-28 | Liquid containing mechanism of mobile 3D printer |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111645323A (en) * | 2019-03-04 | 2020-09-11 | 安世亚太科技股份有限公司 | Mechanism for replacing trough |
| CN109910295B (en) * | 2019-04-09 | 2024-04-26 | 苏州慧通汇创科技有限公司 | Light-weight and high-strength DLP laser rapid prototyping 3D printer supporting structure |
| CN111136912B (en) * | 2020-01-02 | 2022-02-18 | 大族激光科技产业集团股份有限公司 | 3D printing quantitative feeding device, 3D printer and printing method |
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| CN103213282A (en) * | 2013-04-11 | 2013-07-24 | 西安工程大学 | Secondary alternating exposure method used for rapid surface exposure prototyping system |
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