CN108656516B - Vacuum laser direct-writing 3D printing equipment - Google Patents
Vacuum laser direct-writing 3D printing equipment Download PDFInfo
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- CN108656516B CN108656516B CN201810437293.8A CN201810437293A CN108656516B CN 108656516 B CN108656516 B CN 108656516B CN 201810437293 A CN201810437293 A CN 201810437293A CN 108656516 B CN108656516 B CN 108656516B
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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
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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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/264—Arrangements for irradiation
- B29C64/268—Arrangements for irradiation using laser beams; using electron beams [EB]
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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
- B29C64/364—Conditioning of environment
- B29C64/371—Conditioning of environment using an environment other than air, e.g. inert gas
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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
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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
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- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
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Abstract
A vacuum laser direct writing 3D printing device. The invention relates to the field of 3D printing. The printing liquid solves the problems that the existing product has more bubbles and is not suitable for high-viscosity printing liquid. Suitable for high viscosity printing liquid. The vacuum tank is spherical, the spherical shell is an upper hemispherical shell and a lower hemispherical shell, the two hemispherical shells are connected by a flange plate, and the spherical shell is provided with a vacuum meter interface and a vacuum pumping port. The invention has the advantages that: the equipment has the advantages of concise appearance, simplicity in operation, strong applicability and capability of being matched with common 3D printing equipment, and provides a vacuum environment for most 3D printing equipment in the market; in addition, the power supply and the remote control switch are realized in the device, so that the processing difficulty of the device can be reduced, and the high vacuum degree of the system can be ensured.
Description
Technical Field
The invention relates to the field of 3D printing, in particular to vacuum laser direct-writing 3D printing equipment.
Background
At present, the 3D printing technology is a technology for constructing an object by stacking and accumulating layers by layers (i.e., a "build-up modeling method") using an adhesive material such as resin based on a digital model file, and belongs to one of rapid prototyping technologies. At present, more and more products are manufactured by adopting a 3D printing technology, which means the popularization of the technology of '3D printing'. However, with the continuous upgrading and upgrading of 3D printing products, the requirements for 3D printing technology and products are also higher and higher. Especially, in the field with strict requirements on product compactness, the 3D printing technology under the atmospheric environment cannot ensure that no bubbles exist in the product. Therefore, 3D printing methods and equipment in a vacuum or high ultra-vacuum environment are needed to implement. The invention relates to a vacuum laser direct-writing 3D printing system which can realize laser direct-writing 3D printing in a vacuum environment, ensures that a product has no bubbles and is particularly suitable for high-viscosity printing liquid.
Disclosure of Invention
The invention aims to solve the problems that a product has more bubbles and is not suitable for high-viscosity printing liquid during laser direct-writing 3D printing. The utility model provides a vacuum laser direct writing 3D printing apparatus, the concrete technical scheme who solves this problem is as follows:
the invention relates to vacuum laser direct-writing 3D printing equipment which comprises a vacuum tank 1, a laser direct-writing 3D printing system 2, a power supply 3 and a switch control device 4,
the vacuum tank 1 is spherical, the spherical shell is an upper hemispherical shell and a lower hemispherical shell, the two hemispherical shells are connected by a flange plate, the spherical shell is provided with a vacuum meter interface 5 and a vacuum pumping port 6, the lower hemispherical shell is internally provided with a mounting plate 7 of the laser direct writing 3D printing system 2 and the switch control device 4, and a power supply mounting plate 8 is arranged below the mounting plate 7;
the laser direct-writing 3D printing system 2 consists of a laser device, a feeding device, a moving device, a hardware driving device, a host and software, and the laser direct-writing 3D printing system 2 is arranged on the mounting plate 7; the laser device comprises a laser, an optical fiber and a focusing device, wherein the laser adopts ultraviolet laser, the laser wavelength is 200-420 nm, the laser power is 10-1000 mW, the optical fiber laser is adopted, the laser can be focused by the focusing device, and the spot size is 0.1-5.0 cm; the feeding device consists of a printing material cylinder, a gas filter, a gas flow controller and a gas source, wherein the printing material cylinder is made of plastic or metal; the gas flow controller is controlled by a PLC or a single chip microcomputer and is linked with motion control software, a motion system consists of a ball screw and a motor, the motor adopts a stepping or servo motor, a host adopts a PLC or a computer, a hardware driving device is a driver of the stepping motor/servo motor, the software needs to be linked with feeding device software and a switch control device to identify a 3D printed file in a U disk, and the file format comprises STL, OBJ, AMF and 3 MF;
the power supply adopts a direct current power supply to provide direct current, the direct current power supply consists of a charged lithium ion battery stack, and the power supply 3 is arranged on the power supply mounting plate 8;
the switch control device 4 adopts an electronic timing switch, the switch control device 4 is arranged on the mounting plate 7 and used for automatically starting and closing the 3D printing equipment on time, and the switch control device 4 starts the laser direct writing 3D printing equipment to work when the vacuum pressure in the vacuum tank is in the range of-0.090 MPa to-0.099 MPa.
The vacuum laser direct-writing 3D printing equipment has the advantages that: the problem of have the bubble in the printing and the product of the field that has strict requirements to product compactness is solved, the quality of printing the product has been improved, especially is suitable for the printing material of high viscosity. The equipment has the advantages of concise appearance, simplicity in operation, strong applicability and capability of being matched with common 3D printing equipment, and provides a vacuum environment for most 3D printing equipment in the market; in addition, a power supply and a remote control switch are arranged in the device, so that the processing difficulty of the device can be reduced, and the high vacuum degree of the system can be ensured.
Drawings
Fig. 1 is a schematic structural diagram of the present invention, fig. 2 is a schematic structural diagram provided with an inverter, fig. 3 is a schematic structural diagram of the laser direct writing 3D printing apparatus in fig. 1, fig. 4 is a perspective view of the present invention, and fig. 5 is a block diagram of a feeding system. In the figure 13 is a printing liquid cartridge, 14 is a laser and 15 is a print head.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1, 2, 3, 4, and 5, and includes a vacuum tank 1, a laser direct-write 3D printing system 2, a power supply 3, and a switching control device 4,
the vacuum tank 1 is spherical, the spherical shell is an upper hemispherical shell and a lower hemispherical shell, the two hemispherical shells are connected by a flange plate, the spherical shell is provided with a vacuum meter interface 5 and a vacuum pumping port 6, the lower hemispherical shell is internally provided with a mounting plate 7 of the laser direct writing 3D printing system 2 and the switch control device 4, and a power supply mounting plate 8 is arranged below the mounting plate 7;
the laser direct-writing 3D printing system 2 consists of a laser device, a feeding device, a moving device, a hardware driving device, a host and software, and the laser direct-writing 3D printing system 2 is arranged on the mounting plate 7; the laser device comprises a laser, an optical fiber and a focusing device, wherein the laser adopts ultraviolet laser, the laser wavelength is 200-420 nm, the laser power is 10-1000 mW, the optical fiber laser is adopted, the laser can be focused by the focusing device, and the spot size is 0.1-5.0 cm; the feeding device consists of a printing material cylinder, a gas filter, a gas flow controller and a gas source, wherein the printing material cylinder is made of plastic or metal; the gas flow controller is controlled by a PLC or a single chip microcomputer and is linked with motion control software, a motion system consists of a ball screw and a motor, the motor adopts a stepping or servo motor, a host adopts a PLC or a computer, a hardware driving device is a driver of the stepping motor/servo motor, the software needs to be linked with feeding device software and a switch control device to identify a 3D printed file in a U disk, and the file format comprises STL, OBJ, AMF and 3 MF;
the power supply adopts a direct current power supply to provide direct current, the direct current power supply consists of a charged lithium ion battery stack, and the power supply 3 is arranged on the power supply mounting plate 8;
the switch control device 4 adopts an electronic timing switch, the switch control device 4 is arranged on the mounting plate 7 and used for automatically starting and closing the 3D printing equipment on time, and the switch control device 4 starts the laser direct writing 3D printing equipment to work when the vacuum degree in the vacuum tank is in the range of-0.090 MPa to-0.099 MPa.
The second embodiment is as follows: the present embodiment is described with reference to fig. 2, and is different from the first embodiment in that the present embodiment further includes an inverter, which is provided on the power supply mounting plate 8 between the power supply 3 and the outlet 10, and is composed of an inverter bridge, control logic, and a filter circuit, and converts direct-current power into alternating-current power of 220V and 50 Hz. The 3D printing equipment for common use supplies electric energy.
The third concrete implementation mode: the present embodiment will be described with reference to fig. 1, 2, and 4, and the printing material in the present embodiment is made of plastic or metal, and the metal is made of stainless steel, cast iron, copper alloy, or aluminum alloy.
The fourth concrete implementation mode: the present embodiment is described with reference to fig. 1 and 2, the magnitude of the current supplied by the power supply 3 according to the present embodiment is determined according to the amount of electricity used by the laser direct writing 3D printing apparatus, and the maximum value of the supplied current is realized by increasing or decreasing the number of lithium ion batteries.
The fifth concrete implementation mode: the present embodiment is described with reference to fig. 5, the gas flow controller according to the present embodiment is controlled by a PLC or a single chip microcomputer, and the present apparatus uses a PLC having a small volume.
The sixth specific implementation mode: the motor described in this embodiment is composed of a stepping motor or a servo motor, the control host adopts a PLC or a computer, and the device adopts a PLC with a smaller volume.
The seventh embodiment: the present embodiment will be described with reference to fig. 4, and the vacuum tank 1 according to the present embodiment is provided with an observation window 12. And monitoring the working process of the equipment.
The invention is an open system, the output end of the power supply is connected with an inverter to provide electric energy for common 3D printing equipment, such as: the device comprises a melting accumulation molding device, a three-dimensional photocuring molding device, a layered entity manufacturing device and a selective laser sintering device.
Claims (7)
1. The utility model provides a vacuum laser direct-write 3D printing apparatus, it includes vacuum tank (1), laser direct-write 3D printing system (2), power (3) and on-off control device (4), its characterized in that:
the vacuum tank (1) is spherical, the spherical shell is an upper hemispherical shell and a lower hemispherical shell which are connected by a flange plate, a vacuum meter interface (5) and a vacuum pumping port (6) are arranged on the spherical shell, a laser direct-writing 3D printing system (2) and a mounting plate (7) of a switch control device (4) are arranged in the lower hemispherical shell, and a power supply mounting plate (8) is arranged below the mounting plate (7);
the laser direct-writing 3D printing system (2) is composed of a laser device, a feeding device, a moving device, a hardware driving device, a host and software, and the laser direct-writing 3D printing system (2) is arranged on the mounting plate (7); the laser device comprises a laser, an optical fiber and a focusing device, wherein the laser adopts ultraviolet laser, the laser wavelength is 200-420 nm, the laser power is 10-1000 mW, the optical fiber laser is adopted, the laser can be focused by the focusing device, and the spot size is 0.1-5.0 cm; the feeding device consists of a printing material cylinder, a gas filter, a gas flow controller and a gas source, wherein the printing material cylinder is made of plastic or metal; the gas flow controller is controlled by a PLC or a single chip microcomputer and is linked with motion control software, a motion system consists of a ball screw and a motor, the motor adopts a stepping or servo motor, a host adopts a PLC or a computer, a hardware driving device is a driver of the stepping motor/servo motor, the software needs to be linked with feeding device software and a switch control device to identify a 3D printed file in a U disk, and the file format comprises STL, OBJ, AMF and 3 MF;
the power supply adopts a direct current power supply to provide direct current, the direct current power supply consists of a charged lithium ion battery stack, and the power supply (3) is arranged on the power supply mounting plate (8);
the switch control device (4) adopts an electronic timing switch, the switch control device (4) is arranged on the mounting plate (7) and used for automatically starting and closing the 3D printing equipment on time, and the switch control device (4) starts the laser direct writing 3D printing equipment to work when the vacuum pressure in the vacuum tank is in the range of-0.090 MPa to-0.099 MPa.
2. The vacuum laser direct writing 3D printing apparatus according to claim 1, wherein: the power supply is characterized by further comprising an inverter, wherein the inverter is arranged on a power supply mounting plate (8) between a power supply (3) and a socket (10), and the inverter consists of an inverter bridge, control logic and a filter circuit and converts direct current electric energy into alternating current electric energy of 220V and 50 Hz.
3. The vacuum laser direct writing 3D printing apparatus according to claim 1, wherein: the printing material is made of plastics or metal, and the metal is made of stainless steel, cast iron, copper alloy or aluminum alloy.
4. The vacuum laser direct writing 3D printing apparatus according to claim 1, wherein: the current provided by the power supply (3) is determined according to different electricity consumptions of the laser direct-writing 3D printing equipment, and the maximum value of the provided current is realized by increasing or decreasing the number of lithium ion batteries.
5. The vacuum laser direct writing 3D printing apparatus according to claim 1, wherein: the gas flow controller adopts PLC.
6. The vacuum laser direct writing 3D printing apparatus according to claim 1, wherein: the motor is a stepping motor or a servo motor, and the control host adopts a PLC.
7. The vacuum laser direct writing 3D printing apparatus according to claim 1, wherein: an observation window (12) is arranged on the vacuum tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810437293.8A CN108656516B (en) | 2018-05-09 | 2018-05-09 | Vacuum laser direct-writing 3D printing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810437293.8A CN108656516B (en) | 2018-05-09 | 2018-05-09 | Vacuum laser direct-writing 3D printing equipment |
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| Publication Number | Publication Date |
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| CN108656516A CN108656516A (en) | 2018-10-16 |
| CN108656516B true CN108656516B (en) | 2020-09-01 |
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| CN201810437293.8A Active CN108656516B (en) | 2018-05-09 | 2018-05-09 | Vacuum laser direct-writing 3D printing equipment |
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| CN112798963B (en) * | 2021-04-14 | 2021-07-09 | 杭州宇谷科技有限公司 | Method, apparatus and medium for detecting battery charging characteristic abnormality based on time series |
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