CN115008736A - Intelligent feeding method and device for LCD printer - Google Patents
Intelligent feeding method and device for LCD printer Download PDFInfo
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- CN115008736A CN115008736A CN202210623741.XA CN202210623741A CN115008736A CN 115008736 A CN115008736 A CN 115008736A CN 202210623741 A CN202210623741 A CN 202210623741A CN 115008736 A CN115008736 A CN 115008736A
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- led
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- lcd
- lcd printer
- controller
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 50
- 229920005989 resin Polymers 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 238000005192 partition Methods 0.000 claims abstract description 24
- 239000000523 sample Substances 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000007639 printing Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 10
- 239000002994 raw material Substances 0.000 description 4
- 238000000016 photochemical curing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
-
- 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
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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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Ink Jet (AREA)
Abstract
The invention relates to an intelligent feeding method and device of an LCD printer, comprising the following steps: the device comprises an upper cover, a bottle body, an L-shaped partition plate, a motor, a rotary baffle plate with holes, a guide pipe, a detection arm, an LED infrared probe, a controller, a power supply and a bottom plate with a sucker; the LED infrared probe consists of an LED infrared transmitter and a receiver. According to the invention, the LED emitter emits an infrared signal, and the LED receiver receives the infrared signal after the liquid level of the liquid resin is reduced; the controller outputs a motor forward rotation driving signal, the motor drives the perforated rotating baffle to rotate forward for 45 degrees, holes of the perforated rotating baffle coincide with holes formed in the L-shaped partition plate, and liquid resin in the bottle body sequentially passes through the holes and then flows out of the guide pipe; and when the liquid level of the liquid resin rises to submerge the LED receiver again so that the LED receiver stops receiving the infrared signal, the controller outputs a motor reverse rotation driving signal, and after the motor drives the rotating baffle with the hole to rotate reversely for 45 degrees, the liquid resin stops flowing out. The invention can effectively improve the working efficiency of the LCD printer and reduce the manual supervision cost and the printing failure probability.
Description
Technical Field
The invention relates to the field of raw material feeding of 3D printers, in particular to an intelligent feeding method and device of an LCD printer.
Background
The 3D printer is used as an important rapid forming means, the basic principle of additive manufacturing has great potential in the aspects of energy conservation, emission reduction, raw material conservation and the like, and the wide range of forming printing materials brings great market and advantages for the printer. The equipment that adopts multiple 3D to print the principle at present can print all kinds of materials. The material comprises various metal materials, plastic materials, transparent semitransparent materials, casting materials, cement structures, sand models and other materials with different functions and different performances. The LCD printer based on the principle of photocuring technology has the features of high precision, fast printing speed, low shrinkage of cured product, low cost, etc. and is used widely in various industries.
When the LCD printer works, photosensitive resin raw materials are poured into a bottom trough, and light waves with specific wavelengths are used for irradiating the resin from the bottom through a transparent bottom plate of a material box to enable the resin to be cured layer by layer. The prior art LCD printer carriage is generally a clear-bottomed, uncovered box. In actual operation, the printer trough is not designed too high to influence the forming height, and the liquid photosensitive resin poured into the trough is easily influenced by moisture in the air. Therefore, the amount of the photosensitive resin in the material box is reduced on the premise of ensuring the resin consumption required by the printed finished product. However, since the actual amount of resin is difficult to estimate, the resin is fed many times during printing, so that the actual operation is complicated.
The existing solutions have two kinds, one is to design a cavity with variable volume inside the LCD platform to store photosensitive resin, and gradually reduce the cavity volume with the consumption of resin during printing to convey the resin into the trough. The proposal can continuously supply the photosensitive resin on the premise of maintaining the minimum required amount of photosensitive resin printing in the trough. However, this solution has a complex structure, needs to occupy the space of the LCD and light source of the printer, and affects the heat dissipation performance. The corresponding structural design should be completed at the beginning of the printer design, and the manufactured finished LCD printer is difficult to further utilize the solution. Secondly, a feeding barrel is attached to the surface of the LCD platform, a laser probe or a pressure probe detects material storage, and a self-sucking pump assists feeding. This method is relatively simple in structure, but it is bulky and requires a large amount of LCD platform space. It is also necessary to complete the corresponding structure design at the beginning of the design of LCD printer. Is difficult to be applied to most of the commercial finished LCD printers.
Disclosure of Invention
In order to solve the problems, the invention provides an intelligent feeding method and device for an LCD printer. Meanwhile, the system is compatible with a finished product LCD printer, and is convenient for upgrading and utilizing the scheme.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an intelligent feeding method of an LCD printer, which comprises the following steps:
step 1: the controller controls the LED emitter to emit infrared signals intermittently, and when the liquid level of liquid resin in a resin tank of the LCD printer is reduced to 3mm, the controller receives the infrared signals through the LED receiver;
step 2: the controller outputs a motor forward rotation driving signal, controls the motor to rotate forward to drive the perforated rotating baffle to rotate forward for a certain angle, then the hole of the perforated rotating baffle is superposed with the hole arranged in the middle of the L-shaped partition plate, and the liquid resin in the bottle body sequentially passes through the hole arranged in the middle of the L-shaped partition plate and the hole of the perforated rotating baffle and flows out of the guide pipe to a resin tank of an LCD printer;
and step 3: and when the liquid level of the liquid resin in the resin tank of the LCD printer rises to submerge the LED receiver again, the LED receiver stops receiving the infrared signal, the controller outputs a motor reverse rotation driving signal to control the motor to rotate reversely so as to drive the rotary baffle with holes to rotate reversely for a certain angle, the holes of the rotary baffle with holes are separated from the holes arranged in the middle of the L-shaped partition plate, and the liquid resin in the bottle body stops flowing out to the LCD resin tank.
Preferably, in step 1, the interval between the intermittent emission of the infrared signal by the LED emitter is 3 minutes.
Preferably, in step 2 and step 3, the rotation angle of the perforated rotating baffle is 45 °.
The present invention also provides an intelligent feeding device of an LCD printer applied to the intelligent feeding method of an LCD printer according to claim 1, comprising:
the device comprises an upper cover, a bottle body, an L-shaped partition plate, a motor, a rotary baffle plate with holes, a guide pipe, a detection arm, an LED infrared probe, a controller, a power supply and a bottom plate with a sucker; a large-torque micro speed reducing motor is used as a valve system; the LED infrared probe consists of an LED infrared transmitter and an LED infrared receiver;
the upper cover is arranged at the top of the bottle body; the bottom plate with the sucker is arranged at the bottom of the bottle body; the lower side of the interior of the bottle body is divided into two areas by an L-shaped partition plate, the upper area is used for storing liquid resin, and the lower area is respectively provided with the power supply, the controller and the motor; the detection arm and the catheter are fixed on the same side face of the bottle body, and the tail end of the detection arm is provided with an LED infrared probe; a hole is formed in the middle of the L-shaped partition plate and corresponds to the hole of the rotary baffle plate with the hole; a guide pipe is arranged at a position corresponding to the outer side of the hole arranged at the middle position of the L-shaped partition plate; the LED infrared probe is arranged above a resin trough of the LCD printer;
the motor is connected with the rotary baffle plate with the hole through a bearing; the controller is respectively connected with the LED infrared transmitter, the LED infrared receiver and the motor in a wired mode; the power supply is respectively connected with the controller and the motor in sequence in a wired mode.
Preferably, the device is fixed on the table top of the LCD printer in an absorption mode through a sucker on a bottom plate, and the guide pipe and the detection arm are located in a resin trough of the LCD printer.
Preferably, the motor is a 12V motor.
Preferably, the operating peak of the LED infrared probe is 940 nm.
Preferably, the controller is of the model STM32F 407.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the intelligent feeding method and device for the LCD printer, the large-torque micro speed reducing motor is used as a valve system, the LED infrared emitter and the detector are used for detecting the height of the liquid level, and the liquid level is stored and intelligently supplied to the trough of the LCD photocuring 3D printer to print raw materials by combining with the cavity with a certain volume, so that the convenience and working efficiency of the LCD printer are effectively improved, and the manual maintenance cost and the printing failure probability are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1: overall structure and circuit block diagram;
FIG. 2: the rotating baffle with holes rotates to control whether the resin flows out or not.
In the figure: the device comprises an upper cover 1, a bottle body 2, an L-shaped partition plate 3, a motor 4, a rotary baffle plate 5 with holes, a guide pipe 6, a detection arm 7, an LED infrared probe 8, a controller 9, a power supply 10 and a bottom plate 11 with a sucker.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1:
an intelligent feeding device applied to an LCD printer is shown in figure 1. The method comprises the following steps: the device comprises an upper cover 1, a bottle body 2, an L-shaped partition plate 3, a motor 4, a rotary baffle plate with holes 5, a guide pipe 6, a detection arm 7, an LED infrared probe 8, a controller 9, a power supply 10 and a bottom plate with a sucker 11; the LED infrared probe 8 consists of an LED infrared transmitter and an LED infrared receiver;
the device is fixed on the table top of the LCD printer by sucking through a sucking disc on a bottom plate, and a guide pipe 6 and a detection arm 7 are both positioned in a resin trough of the LCD printer.
As shown in fig. 1, the upper cap 1 is placed on the top of the bottle body 2; the bottom plate 11 with the sucker is arranged at the bottom of the bottle body 2; as shown in fig. 2, the lower side of the interior of the bottle body 2 is divided into two areas by an L-shaped partition 3, the upper area is used for storing liquid resin, and the lower area is respectively provided with the power supply 10, the controller 9 and the motor 4; the detection arm 7 and the catheter 6 are fixed on the same side surface of the bottle body 2, and the tail end of the detection arm 7 is provided with an LED infrared probe 8; a hole is formed in the middle of the L-shaped partition plate 3 and corresponds to the hole of the rotary baffle plate with the hole 5; a guide pipe 6 is arranged at the position corresponding to the outer side of the hole arranged at the middle position of the L-shaped partition plate 3; the LED infrared probe 8 is arranged in a resin trough of the LCD printer;
the motor 4 is connected with the rotary baffle 5 with the hole through a bearing; the controller 9 is respectively connected with the LED infrared transmitter, the LED infrared receiver and the motor 4 in a wired mode; the power supply 10 is respectively connected with the controller 9 and the motor 4 in sequence in a wired mode.
The motor 4 is a 12V motor 4, the LED infrared probe 8 is an LED infrared probe 8 with a working wave peak of 940nm, and the controller 9 is selected to be an STM32F 407;
the invention is described in detail with reference to the accompanying drawings, and is an intelligent feeding method applied to an LCD printer, comprising the following steps:
step 1: the controller 9 controls the LED emitter to emit infrared signals every 3 minutes, and when the liquid level of liquid resin in the LCD resin trough is reduced to 3mm, the controller 9 receives the infrared signals through the LED receiver;
step 2: the controller 9 outputs a forward rotation driving signal of the motor 4, controls the motor 4 to drive the perforated rotating baffle 5 to rotate forwards for 45 degrees, and then the hole of the perforated rotating baffle 5 is superposed with the hole arranged in the middle of the L-shaped partition plate 3, and the liquid resin in the bottle body 2 sequentially passes through the hole arranged in the middle of the L-shaped partition plate 3 and the hole of the perforated rotating baffle 5 and flows out of the conduit 6;
and step 3: when the liquid level of the liquid resin in the LCD resin trough rises to submerge the LED receiver again, the LED receiver stops receiving the infrared signal, the controller 9 outputs a reverse rotation driving signal of the motor 4, and controls the motor 4 to drive the perforated rotating baffle 5 to rotate reversely for 45 degrees, the hole of the perforated rotating baffle 5 is separated from the hole arranged in the middle of the L-shaped partition plate 3, and the liquid resin in the bottle body 2 stops flowing out to the LCD resin trough.
The principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above examples is only used for helping understanding the method and the core idea of the invention; also, for those skilled in the art, more advanced creation is possible according to the idea of the present invention, and the specific implementation and application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (8)
1. An intelligent feeding method of an LCD printer is characterized by comprising the following steps:
step 1: the controller controls the LED emitter to emit infrared signals intermittently, and when the liquid level of liquid resin in a resin tank of the LCD printer is reduced to 3mm, the controller receives the infrared signals through the LED receiver;
step 2: the controller outputs a motor forward rotation driving signal, controls the motor to rotate forward to drive the perforated rotating baffle to rotate forward for a certain angle, the hole of the perforated rotating baffle is superposed with the hole arranged in the middle of the L-shaped partition plate, and the liquid resin in the bottle body sequentially passes through the hole arranged in the middle of the L-shaped partition plate and the hole of the perforated rotating baffle and flows out of the guide pipe to a resin trough of an LCD printer;
and 3, step 3: and when the liquid level of the liquid resin in the resin tank of the LCD printer rises to submerge the LED receiver again, the LED receiver stops receiving the infrared signal, the controller outputs a motor reverse rotation driving signal to control the motor to rotate reversely so as to drive the rotary baffle with holes to rotate reversely for a certain angle, the holes of the rotary baffle with holes are separated from the holes arranged in the middle of the L-shaped partition plate, and the liquid resin in the bottle body stops flowing out to the LCD resin tank.
2. The intelligent feeding method device for LCD printer as claimed in claim 1, wherein in step 1, the interval of the intermittent emission of the infrared signal by the LED emitter is 3 minutes.
3. The intelligent feeding method device for LCD printer as claimed in claim 1, wherein in step 2 and step 3, the rotation angle of the perforated rotating baffle is 45 °.
4. An intelligent feeding device of an LCD printer applied to the intelligent feeding method of the LCD printer according to claim 1, comprising:
the device comprises an upper cover, a bottle body, an L-shaped partition plate, a motor, a rotary baffle plate with holes, a guide pipe, a detection arm, an LED infrared probe, a controller, a power supply and a bottom plate with a sucker; a large-torque micro speed reducing motor is used as a valve system; the LED infrared probe consists of an LED infrared transmitter and an LED infrared receiver;
the upper cover is arranged at the top of the bottle body; the bottom plate with the sucker is arranged at the bottom of the bottle body; the lower side of the interior of the bottle body is divided into two areas by an L-shaped partition plate, the upper area is used for storing liquid resin, and the lower area is respectively provided with the power supply, the controller and the motor; the detection arm and the catheter are fixed on the same side face of the bottle body, and the tail end of the detection arm is provided with an LED infrared probe; a hole is formed in the middle of the L-shaped partition plate and corresponds to the hole of the rotary baffle plate with the hole; a guide pipe is arranged at a position corresponding to the outer side of the hole arranged in the middle of the L-shaped partition plate; the LED infrared probe is arranged above a resin trough of the LCD printer;
the motor is connected with the rotary baffle plate with the hole through a bearing; the controller is respectively connected with the LED infrared transmitter, the LED infrared receiver and the motor in a wired mode; the power supply is respectively connected with the controller and the motor in sequence in a wired mode.
5. The intelligent feeding device of LCD printer as claimed in claim 4, wherein the device is fixed on the table of LCD printer by suction via a suction cup on the bottom plate, and the guide tube and the detection arm are both located in the resin tank of LCD printer.
6. The intelligent feeding device of LCD printer as claimed in claim 4, wherein the motor is 12V motor.
7. The intelligent feeding device of the LCD printer according to claim 4, wherein the operating peak of the LED infrared probe is 940 nm.
8. The intelligent feeding device of the LCD printer according to claim 4, wherein the controller is model STM32F 407.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210623741.XA CN115008736A (en) | 2020-05-18 | 2020-05-18 | Intelligent feeding method and device for LCD printer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210623741.XA CN115008736A (en) | 2020-05-18 | 2020-05-18 | Intelligent feeding method and device for LCD printer |
| CN202010418141.0A CN111619106A (en) | 2020-05-18 | 2020-05-18 | Intelligent feeding system of LCD printer |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010418141.0A Division CN111619106A (en) | 2020-05-18 | 2020-05-18 | Intelligent feeding system of LCD printer |
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| CN115008736A true CN115008736A (en) | 2022-09-06 |
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| CN202210623741.XA Pending CN115008736A (en) | 2020-05-18 | 2020-05-18 | Intelligent feeding method and device for LCD printer |
| CN202010418141.0A Pending CN111619106A (en) | 2020-05-18 | 2020-05-18 | Intelligent feeding system of LCD printer |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010418141.0A Pending CN111619106A (en) | 2020-05-18 | 2020-05-18 | Intelligent feeding system of LCD printer |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856573A (en) * | 2016-05-18 | 2016-08-17 | 博纳云智（天津）科技有限公司 | High-precision and high-speed continuous 3D printer and printing method thereof |
| CN208881176U (en) * | 2018-07-18 | 2019-05-21 | 广东奥仕智能科技股份有限公司 | The automatic-feeding device of DLP 3D printer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2736289Y (en) * | 2004-08-25 | 2005-10-26 | 上海豪美佳食品有限公司 | Flavouring bottle cover |
| CN108367490B (en) * | 2015-12-16 | 2021-08-31 | 3M创新有限公司 | Additive manufacturing system and method of additive manufacturing |
| CN206520236U (en) * | 2017-01-22 | 2017-09-26 | 深圳晗竣雅科技有限公司 | A kind of 3D printing resin charging and filtration system |
| CN207481225U (en) * | 2017-09-29 | 2018-06-12 | 深圳晗竣雅科技有限公司 | For the automatic feeder of DLP photocuring 3D printers |
| CN209682917U (en) * | 2019-03-29 | 2019-11-26 | 重庆秋平模型有限公司 | A kind of automatic liquid supply device of SLA photocuring 3D printing equipment |
-
2020
- 2020-05-18 CN CN202210623741.XA patent/CN115008736A/en active Pending
- 2020-05-18 CN CN202010418141.0A patent/CN111619106A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856573A (en) * | 2016-05-18 | 2016-08-17 | 博纳云智（天津）科技有限公司 | High-precision and high-speed continuous 3D printer and printing method thereof |
| CN208881176U (en) * | 2018-07-18 | 2019-05-21 | 广东奥仕智能科技股份有限公司 | The automatic-feeding device of DLP 3D printer |
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| CN111619106A (en) | 2020-09-04 |
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