CN109263040A - A kind of self balancing quick 3D printing system of plane of exposure - Google Patents
A kind of self balancing quick 3D printing system of plane of exposure Download PDFInfo
- Publication number
- CN109263040A CN109263040A CN201811230674.5A CN201811230674A CN109263040A CN 109263040 A CN109263040 A CN 109263040A CN 201811230674 A CN201811230674 A CN 201811230674A CN 109263040 A CN109263040 A CN 109263040A
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- Prior art keywords
- liquid level
- exposure
- hopper
- plane
- valve
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Links
- 238000010146 3D printing Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 146
- 239000012530 fluid Substances 0.000 claims abstract description 45
- 239000011347 resin Substances 0.000 claims abstract description 44
- 229920005989 resin Polymers 0.000 claims abstract description 44
- 238000010079 rubber tapping Methods 0.000 claims abstract description 21
- 238000007639 printing Methods 0.000 claims abstract description 17
- 238000003860 storage Methods 0.000 claims abstract description 13
- 238000005086 pumping Methods 0.000 claims abstract description 12
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 238000001802 infusion Methods 0.000 claims abstract description 7
- 230000002459 sustained effect Effects 0.000 claims abstract description 6
- 238000005057 refrigeration Methods 0.000 claims description 13
- 239000002826 coolant Substances 0.000 claims description 10
- 239000000110 cooling liquid Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000013589 supplement Substances 0.000 claims description 2
- 238000001727 in vivo Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 4
- 238000000016 photochemical curing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000006124 Pilkington process Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
- B29C64/135—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/255—Enclosures for the building material, e.g. powder containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
- B29C64/329—Feeding using hoppers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention discloses a kind of self balancing quick 3D printing systems of plane of exposure, it includes light-transmissive fluid (2), photosensitive resin (3), hopper (4), optical device (5), objective table (6), motor (7), entity component (8), plane of exposure (1) is formed between light-transmissive fluid and photosensitive resin, it further include liquid supply device, pumping equipment and fluid level control device, liquid supply device is set to hopper upper end, liquid supply device includes the first charging basket (9), first valve (10), second charging basket (11) and the second valve (12), fluid level control device includes low liquid level sensor (13), high liquid level sensor (14) and programmable controller (15), pumping equipment includes drain pipe (16), liquid storage bottle (17) and tapping valve (18), liquid supply device is controlled by fluid level control device Or pumping equipment carries out fluid infusion or drain, realizes that plane of exposure (1) is automatically kept and balances and remain at sustained height.The present invention uses the self balancing quick 3D printing system of plane of exposure, improves printing precision, and plane of exposure automatically keeps balance, remains at sustained height.
Description
Technical field
The present invention relates to printing technique fields, and in particular to a kind of self balancing quick 3D printing system of plane of exposure.
Background technique
3D printing is known as the core technology of " the third time industrial revolution ", which is to combine digital modeling techniques, machine
The cutting edge technology of the numerous areas such as electric control technology, information technology, material science and chemistry.Wherein photocuring 3D printing is rapid-result fastly
Shape technique has the characteristics that energy consumption is small, at low cost, forming accuracy is high, can print any configuration that traditional processing mode can not process
Complicated part.Photocuring 3D printing can be divided into stereolithography (SLA), digital light processing (DLP), 3 kinds of three dimensional ink jet (3DSP)
Mode.Wherein DLP and SLA forming is liquid photosensitive resin by being light-cured into after one layer of thin layer as objective table increases or drops
It is low, then with same method, resolidification obtains a new cured layer on previous cured layer, finally obtained stereoscopic three-dimensional
Product.3DSP is ejected into drop after passing through photocuring behind designated position, fill-before-fire by way of similar inkjet printing
Next layer, resolidification finally obtain entity component.In conclusion existing photocuring 3D printing technique, is all that will calculate machine-cut
Model after piece finally obtains 3D entity by being successively superimposed, traditional SLA and DLP are photosensitive by the solidification of light in layer
Resin 3D printing technique after every one layer of solidification, requires machinery and shells cured layer from resin storage tank inner bottom plating in print procedure
It is long so as to cause the print time from (printing from bottom to top), meanwhile, this process also will be greatly reduced the service life of hopper.
Therefore, the application of this traditional 3D printing technique is somewhat limited.
And currently, prior art discloses a kind of float glass process bottom faces expose molding machine, realize plane of exposure autobalance
With filling into automatically for photosensitive resin, but it is not carried out filling into automatically for transparency liquid, with the progress of printing, transparency liquid will be with
Loss, this defect will lead to the movement of plane of exposure, to influence printing precision；In addition it can be generated in implementing print procedure
A large amount of heat causes hopper temperature sharply to increase, so that photosensitive resin generates bubble, it is unfavorable to printing precision.Therefore, it needs
Those skilled in the art develop a kind of self balancing quick 3D printing system of plane of exposure.
Summary of the invention
The purpose of the present invention is to solve above-mentioned the deficiencies in the prior art, provides a kind of plane of exposure and put down automatically
The quick 3D printing system of weighing apparatus can be realized filling into automatically for transparency liquid, ensure that printing precision.
In order to achieve the above object of the invention, technical solution provided by the invention is as follows: a kind of plane of exposure is self balancing fast
Fast 3D printing system, it includes light-transmissive fluid, photosensitive resin, hopper, optical device, objective table, motor and entity component, described
Light-transmissive fluid and photosensitive resin are sequentially loaded into hopper from bottom to up, the density of the light-transmissive fluid is greater than the close of photosensitive resin
Degree, forms plane of exposure, the photosensitive resin upper surface is set as liquid level, the hopper between the light-transmissive fluid and photosensitive resin
Bottom light-permeable, by optical device by light projection to plane of exposure, so that photosensitive resin between objective table and plane of exposure is solid
Change forms entity component, and entity component is sticked to objective table, moves upwards driven by the motor, and photosensitive resin is to cured area
Domain supplement, optical device will make photosensitive resin continue to solidify, finally obtain and completely beat in the light projection to plane of exposure of variation
Entity component is printed, further includes liquid supply device, pumping equipment and fluid level control device, the liquid supply device is set to hopper upper end simultaneously
The fluid infusion into hopper, the liquid supply device include for containing the first charging basket of light-transmissive fluid, control the first charging basket opening and closing
Second valve of one valve, the second charging basket for containing photosensitive resin and control the second charging basket opening and closing, first valve are set
In first charging basket one end, second valve be set to second charging basket one end, the fluid level control device include low liquid level sensor,
High liquid level sensor and programmable controller, the low liquid level sensor are set at the intracorporal plane of exposure of hopper chamber, the height
Liquid level sensor is set in hopper cavity at upper liquid level, and the programmable controller is set on the outside of hopper, the drain dress
It sets including drain pipe, liquid storage bottle and tapping valve, the drain pipe is set on hopper side wall, and the drain pipe is on hopper side wall
Position be higher than low liquid level sensor position, described drain pipe one end is connected with the liquid storage bottle being placed in outside hopper, the row
Liquid pipe is equipped with tapping valve, and the programmable controller is electrically connected with low liquid level sensor and high liquid level sensor respectively, institute
It states the first valve and tapping valve to be electrically connected with low liquid level sensor, the high liquid level sensor is electrically connected with the second valve
Door, hopper controls liquid supply device by fluid level control device or pumping equipment carries out fluid infusion or drain, to realize plane of exposure certainly
It is dynamic to keep balancing and remain at sustained height.
As it is further preferred that controlling the first valve by low liquid level sensor when plane of exposure is lower than low liquid level sensor
Door is opened so that in light-transmissive fluid injection hopper in the first charging basket, until plane of exposure reaches low liquid level sensor position, first
Valve is closed；
When plane of exposure is higher than low liquid level sensor, tapping valve is controlled by low liquid level sensor and opens the light transmission so that in hopper
Liquid is by drain line drains to liquid storage bottle, until plane of exposure reaches low liquid level sensor position, tapping valve is closed；
When plane of exposure reaches low liquid level sensor position, and upper liquid level is lower than high liquid level sensor, pass through high liquid level sensor control
The second valve is made to open so that the photosensitive resin in the second charging basket injects in hopper, until upper liquid level reaches high liquid level sensor position
It sets, the second valve is closed.
As it is further preferred that the hopper interior is provided with cooling liquid flowing channel, the hopper outside is additionally provided with
One refrigeration machine, the refrigeration machine is interior to be equipped with coolant liquid, and the refrigeration machine is connected with conveyance conduit, the conveyance conduit and coolant liquid
Runner interface is connected, and coolant liquid is delivered in cooling liquid flowing channel by conveyance conduit, so that hopper is cooling.
As it is further preferred that the hopper side wall material uses copper.
As it is further preferred that the optical device is equipped with automatic focus-adjusting lens, in fact by automatic focus-adjusting lens realization
When focus, to ensure that printing precision.
As it is further preferred that first valve, the second valve and tapping valve are solenoid valve.
Based on the above-mentioned technical proposal, of the invention that there is following technological merit compared with prior art:
1. the present invention use the self balancing quick 3D printing system of plane of exposure, by fluid level control device control liquid supply device or
Pumping equipment carries out fluid infusion or drain, balances to realize that plane of exposure is automatically kept and remains at sustained height, can be effective
It avoids the loss of light-transmissive fluid and plane of exposure is caused to move, to improve printing precision；
2. coolant liquid is delivered in cooling liquid flowing channel by conveyance conduit by cooling liquid flowing channel, refrigeration machine and conveyance conduit,
To which hopper is cooling, it can avoid photosensitive resin and generate bubble, printing precision can be improved to a certain extent；
3. using automatic focus-adjusting lens, it can be achieved that Real-time Focusing, is conducive to the image clearly of projection, to ensure that printing essence
Degree.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the self balancing quick 3D printing system of plane of exposure of the present invention.
Fig. 2 is the connection schematic diagram of fluid level control device of the present invention, the first valve, the second valve and tapping valve.
In figure: 1. plane of exposure, 2. light-transmissive fluids, 3. photosensitive resins, 4. hoppers, 5. optical devices, 6. objective tables, 7. electricity
Machine, 8. entity components, 9. first charging baskets, 10. first valves, 11. second charging baskets, 12. second valves, 13. low liquid level sensors,
14. high liquid level sensor, 15. programmable controllers, 16. drain pipes, 17. liquid storage bottles, 18. tapping valves, liquid level on 19., 20. is cold
But liquid stream road, 21. refrigeration machines, 22. conveyance conduits, 23. automatic focus-adjusting lens.
Specific embodiment
Explanation that the present invention will be further explained with reference to the accompanying drawings and examples.
As Figure 1-Figure 2, the self balancing quick 3D printing system of a kind of plane of exposure, it includes light-transmissive fluid 2, photosensitive
Resin 3, hopper 4, optical device 5, objective table 6, motor 7 and entity component 8 are sequentially loaded into from bottom to up in the hopper 4
Light liquid 2 and photosensitive resin 3, the density of the light-transmissive fluid 2 are greater than the density of photosensitive resin 3 and mutual indissoluble, the light transmission
Plane of exposure 1, light-transmissive fluid 2 and the mutual indissoluble of photosensitive resin 3 are formed between liquid 2 and photosensitive resin 3, can realize plane of exposure automatically
1 uniform, balance, 3 upper surface of photosensitive resin are set as liquid level 19, and the bottom light-permeable of the hopper 4 is set by optics
Standby 5 by light projection to plane of exposure 1, so that the photosensitive resin 3 between objective table 6 and plane of exposure 1 is formed by curing entity component 8, it is real
Body part 8 is sticked to objective table 6, moves upwards under the drive of motor 7, and photosensitive resin 3 is supplemented to cured region, and optics is set
Standby 5 will make photosensitive resin 3 continue to solidify in the light projection of variation to plane of exposure 1, finally obtain complete printing entity component
8, it further include liquid supply device, pumping equipment and fluid level control device, the liquid supply device is set to 4 upper end of hopper and into hopper
Fluid infusion, the liquid supply device include the first valve for containing the first charging basket 9 of light-transmissive fluid 2, control the first charging basket opening and closing
10, for containing the second charging basket 11 of photosensitive resin 3 and the second valve 12 of control the second charging basket opening and closing, first valve 10
Set on 9 one end of the first charging basket, second valve 12 is set to 11 one end of the second charging basket, and the fluid level control device includes low liquid level
Sensor 13, high liquid level sensor 14 and programmable controller 15, it is intracorporal that the low liquid level sensor 13 is set to 4 chamber of hopper
At plane of exposure 1, the high liquid level sensor 14 is set in 4 cavity of hopper at upper liquid level 19, and the programmable controller 15 is set
It is placed in 4 outside of hopper, the pumping equipment includes drain pipe 16, liquid storage bottle 17 and tapping valve 18, and the drain pipe 16 is set to
On 4 side wall of hopper, which is higher than 13 position of low liquid level sensor, the drain pipe 16 1 in the position on hopper side wall
It holds and is connected with the liquid storage bottle 17 being placed in outside hopper 4, the drain pipe 16 is equipped with tapping valve 18, the programmable controller
15 are electrically connected with low liquid level sensor 13 and high liquid level sensor 14 respectively, first valve 10 and tapping valve 18 with it is low
Liquid level sensor 13 is electrically connected, and the high liquid level sensor 14 is electrically connected with the second valve 12, and hopper 4 passes through Liquid level
Device controls liquid supply device or pumping equipment carries out fluid infusion or drain, balances and protects always to realize that plane of exposure 1 is automatically kept
It holds in sustained height.
When plane of exposure 1 is lower than low liquid level sensor 13, controlling the first valve 10 opening by low liquid level sensor 13 makes
The light-transmissive fluid 2 obtained in the first charging basket 9 is injected in hopper 4, until plane of exposure 1 reaches 13 position of low liquid level sensor, the first valve
Door 10 is closed；When plane of exposure 1 be higher than low liquid level sensor 13 when, by low liquid level sensor 13 control tapping valve 18 open so that
Light-transmissive fluid 2 in hopper 4 is emitted into liquid storage bottle 17 by drain pipe 16, until plane of exposure 1 reaches low liquid level sensor 13
It sets, tapping valve 18 is closed；When plane of exposure 1 reaches 13 position of low liquid level sensor, and upper liquid level 19 is lower than high liquid level sensor 14,
The second valve 12 is controlled by high liquid level sensor 14 to open so that the photosensitive resin 3 in the second charging basket 11 injects in hopper 4, directly
Supreme liquid level 19 reaches 14 position of high liquid level sensor, and the second valve 12 is closed.4 interior of hopper is provided with coolant liquid
Runner 20, the cooling liquid flowing channel 20 are pipeline made of copper product, are additionally provided with a refrigeration machine 21 on the outside of the hopper, described
It is equipped with coolant liquid (such as: water) in refrigeration machine 21, the refrigeration machine 21 is connected with conveyance conduit 22, the conveyance conduit 22 and cooling
20 interface of liquid stream road is connected, and coolant liquid is delivered in cooling liquid flowing channel 20 by conveyance conduit 22 and carries out cycle heat exchange, from
And make hopper 4 cooling.The 4 side wall material of hopper uses copper.The optical device 5 is equipped with automatic focus-adjusting lens 23, leads to
It crosses automatic focus-adjusting lens 23 and realizes Real-time Focusing, to ensure that printing precision.First valve 10, the second valve 12 and row
Liquid valve 18 is solenoid valve.The refrigeration machine 21, conveyance conduit 22 and automatic focus-adjusting lens 23 are the prior art, conveyance conduit
22 can be sebific duct.
Specific implementation process of the present invention are as follows: before starting printing, first open the first valve 10, density is greater than photosensitive resin 3
Light-transmissive fluid 2 inject hopper 4, when low liquid level sensor 13 detects 2 liquid level of light-transmissive fluid, the first valve 10 close, then
The second valve 12 is opened, photosensitive resin 3, when high liquid level sensor 14 detects the upper liquid level 19 of photosensitive resin 3, second are injected
Valve 12 is closed, and with the progress of print job, transparency liquid 2 will be lost therewith, in order to guarantee that the location of plane of exposure 1 is permanent
It is fixed, when plane of exposure 1 is lower than low liquid level sensor 13, the first valve 10 is controlled by low liquid level sensor 13 and is opened so that first
Light-transmissive fluid 2 in charging basket 9 is injected in hopper 4, and until plane of exposure 1 reaches 13 position of low liquid level sensor, the first valve 10 is closed
It closes；When plane of exposure 1 is higher than low liquid level sensor 13, tapping valve 18 is controlled by low liquid level sensor 13 and is opened so that hopper 4
In light-transmissive fluid 2 liquid storage bottle 17 is emitted by drain pipe 16, until plane of exposure 1 reaches 13 position of low liquid level sensor, arrange
Liquid valve 18 is closed；When plane of exposure 1 reaches 13 position of low liquid level sensor, and upper liquid level 19 is lower than high liquid level sensor 14, lead to
Excessively high liquid level sensor 14 controls the second valve 12 and opens so that the photosensitive resin 3 in the second charging basket 11 is injected into hopper 4, directly
Supreme liquid level 19 reaches 14 position of high liquid level sensor, and the second valve 12 is closed, and is conducive to improve printing precision；Print job into
While row, refrigeration machine 21 is started to work, and coolant liquid is delivered in cooling liquid flowing channel 20 by conveyance conduit 22, so that
Hopper 4 is cooling.
Above content is example and explanation of the invention, but does not mean that the obtainable advantage of the present invention is so limited, all
It is wherein one the advantages of may being realized in simple transformation, and/or some embodiments to structure in practice process of the present invention
It is a or it is multiple within the scope of protection of this application.
Claims (6)
1. a kind of self balancing quick 3D printing system of plane of exposure, it includes light-transmissive fluid (2), photosensitive resin (3), hopper
(4), optical device (5), objective table (6), motor (7) and entity component (8), the hopper (4) is interior to be sequentially loaded into from bottom to up
Light-transmissive fluid (2) and photosensitive resin (3), the density of the light-transmissive fluid (2) are greater than the density of photosensitive resin (3), the light transmission
Plane of exposure (1) is formed between liquid (2) and photosensitive resin (3), photosensitive resin (3) upper surface is set as liquid level (19), institute
The bottom light-permeable for stating hopper (4), by optical device (5) by light projection to plane of exposure (1), so that objective table (6) and exposure
Photosensitive resin (3) between face (1) is formed by curing entity component (8), and entity component (8) is sticked to objective table (6), in motor (7)
Drive under move upwards, and photosensitive resin (3) to cured region supplement, optical device (5) by the light projection of variation to exposure
So that photosensitive resin (3) continues to solidify in smooth surface (1), complete printing entity component (8) is finally obtained, it is characterised in that: also
Including liquid supply device, pumping equipment and fluid level control device, the liquid supply device is set to hopper (4) upper end and mends into hopper
Liquid, the liquid supply device include the first valve for containing the first charging basket (9) of light-transmissive fluid (2), control the first charging basket opening and closing
The second valve (12) of door (10), the second charging basket (11) for containing photosensitive resin (3) and control the second charging basket opening and closing, it is described
First valve (10) is set to the first charging basket (9) one end, and second valve (12) is set to the second charging basket (11) one end, the liquid level
Control device includes low liquid level sensor (13), high liquid level sensor (14) and programmable controller (15), and the low liquid level passes
Sensor (13) is set at the intracorporal plane of exposure of hopper (4) chamber (1), and the high liquid level sensor (14) is set to hopper (4) chamber
In vivo at upper liquid level (19), the programmable controller (15) is set on the outside of hopper (4), and the pumping equipment includes drain pipe
(16), liquid storage bottle (17) and tapping valve (18), the drain pipe (16) are set on hopper (4) side wall, and the drain pipe (16)
It is higher than low liquid level sensor (13) position in the position on hopper side wall, described drain pipe (16) one end and is placed in hopper (4) outside
The liquid storage bottle (17) in portion is connected, and the drain pipe (16) is equipped with tapping valve (18), and the programmable controller (15) is respectively
Be electrically connected with low liquid level sensor (13) and high liquid level sensor (14), first valve (10) and tapping valve (18) with
Low liquid level sensor (13) is electrically connected, and the high liquid level sensor (14) is electrically connected with the second valve (12), and hopper (4) is logical
It crosses fluid level control device control liquid supply device or pumping equipment carries out fluid infusion or drain, to realize that plane of exposure (1) is automatically kept
It balances and remains at sustained height.
2. the self balancing quick 3D printing system of a kind of plane of exposure according to claim 1, it is characterised in that: work as exposure
When face (1) is lower than low liquid level sensor (13), opened by low liquid level sensor (13) control the first valve (10) so that first
In inner light-transmissive fluid (2) injection hopper (4) of charging basket (9), until plane of exposure (1) reaches low liquid level sensor (13) position, the
One valve (10) is closed；
When plane of exposure (1) is higher than low liquid level sensor (13), opened by low liquid level sensor (13) control tapping valve (18)
So that the inner light-transmissive fluid (2) of hopper (4) is emitted into liquid storage bottle (17) by drain pipe (16), until plane of exposure (1) reaches low
Liquid level sensor (13) position, tapping valve (18) are closed；
When plane of exposure (1) reaches low liquid level sensor (13) position, and upper liquid level (19) is lower than high liquid level sensor (14), pass through
High liquid level sensor (14) controls the second valve (12) and opens so that the inner photosensitive resin (3) of the second charging basket (11) injects hopper
(4) in, until upper liquid level (19) reach high liquid level sensor (14) position, the second valve (12) is closed.
3. the self balancing quick 3D printing system of plane of exposure according to claim 1, it is characterised in that: the hopper
(4) interior is provided with cooling liquid flowing channel (20), is additionally provided with a refrigeration machine (21), the refrigeration machine on the outside of the hopper
(21) coolant liquid is equipped in, the refrigeration machine (21) is connected with conveyance conduit (22), described conveyance conduit (22) one end and cooling
Liquid stream road (20) interface is connected, and coolant liquid is delivered in cooling liquid flowing channel (20) by conveyance conduit (22), so that
Hopper (4) is cooling.
4. the self balancing quick 3D printing system of plane of exposure according to claim 3, it is characterised in that: the hopper
(4) side wall material uses copper.
5. the self balancing quick 3D printing system of plane of exposure according to claim 1, it is characterised in that: the optics is set
Standby (5) are equipped with automatic focus-adjusting lens (23), realize Real-time Focusing by automatic focus-adjusting lens (23), to ensure that printing essence
Degree.
6. the self balancing quick 3D printing system of plane of exposure according to claim 1, it is characterised in that: first valve
Door (10), the second valve (12) and tapping valve (18) are solenoid valve.
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| CN201811230674.5A CN109263040B (en) | 2018-10-22 | 2018-10-22 | Quick 3D printing system with automatic exposure surface balance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811230674.5A CN109263040B (en) | 2018-10-22 | 2018-10-22 | Quick 3D printing system with automatic exposure surface balance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895033A (en) * | 2020-06-22 | 2022-01-07 | 上海普利生机电科技有限公司 | Photocuring type 3D printing device and printing method |
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