CN108705085B - Three-dimensional printer - Google Patents
Three-dimensional printer Download PDFInfo
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- CN108705085B CN108705085B CN201810556634.3A CN201810556634A CN108705085B CN 108705085 B CN108705085 B CN 108705085B CN 201810556634 A CN201810556634 A CN 201810556634A CN 108705085 B CN108705085 B CN 108705085B
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- spray head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
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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
- B33Y10/00—Processes of 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention provides a three-dimensional printer which comprises a model path planning system and a printing device, wherein the printing device comprises a power supply device, a powder supply device, a gas supply device, an air filter, a gas control device, a powder management device, a pipeline, an array spray head, an electromagnetic shielding and heat insulation device, an inductor, a forming flat plate, a supporting flat plate, a Z-axis motion guide rail, a connecting device and an equipment shell; the invention adopts the array spray head to realize fast and efficient printing, can flexibly add and replace various different consumable materials according to printing tasks, realizes the combined printing of various materials by controlling the electromagnetic valve and the air pressure, uses a new heating means for melting powder, and greatly improves the forming speed.
Description
Technical Field
The invention relates to the field of 3D printing, in particular to a three-dimensional printer.
Background
3D printing is one of the rapid prototyping technologies, which is a technology for constructing an object by using an adhesive material such as powdered metal or plastic and the like in a layer-by-layer printing manner on the basis of a digital model file.
According to different material forms, different 3D printing technologies are used for realizing the printing of the model, wherein for the powder type material, the technologies such as SLS (selective laser sintering), SLM (selective laser melting) and the like are generally used for realizing, but each technology has more defects;
selective laser sintering, using a laser as an energy source and using a powder material. During processing, firstly, preheating the powder to a temperature slightly lower than the melting point of the powder, and paving the powder by using a scraper; and the laser beam is selectively sintered under the control of a computer according to the information of the layered cross section, the next layer of sintering is carried out after one layer of sintering is finished, and redundant powder is removed after all the layers of sintering are finished, so that the sintered part is obtained. The forming technology is mature, the forming precision can reach 0.1mm, but the forming speed is low, the preheating is needed for a long time, generally, only polymer powder is needed, and when metal powder is used, an adhesive is generally needed to be added, so that the density and the strength of a printed model are low.
Selective laser melting is similar to selective laser sintering, but the powder used in the selective laser melting is generally metal powder, and a higher-power laser is used to melt the powder, so that a solid body is finally obtained, but the solid body is still formed by using a single-point laser scanning mode, and the printing speed is still slow.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the three-dimensional printer, which uses the array spray head to realize quick and efficient printing; various different consumables can be flexibly added and replaced according to the printing task, and the combined printing of various materials is realized by controlling the electromagnetic valve and the air pressure; a new heating means is used for melting the powder, so that the forming speed is greatly improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a three-dimensional printer comprising: the system comprises a model path planning system and a printing device, wherein the printing device comprises a power supply device, a powder supply device, a gas supply device, an air filter, a gas control device, a powder management device, a pipeline, an array spray head, an electromagnetic shielding and heat insulation device, an inductor, a forming flat plate, a supporting flat plate, a Z-axis motion guide rail, a connecting device and an equipment shell;
the model path planning system is connected with the printing device through a wireless network;
the power supply device, the powder supply device and the gas supply device are respectively connected with the equipment shell, and the air filter is arranged in the equipment shell;
the gas control device is arranged at the top in the equipment shell and is connected with the gas supply device;
the powder management device is arranged below the gas control device and is connected with the powder supply device;
the pipeline is connected with the gas control device, the powder management device and the array spray head;
the forming flat plate is arranged below the array spray head, the supporting flat plate is arranged below the forming flat plate, and the Z-axis motion guide rail is arranged below the supporting flat plate;
the connecting device is used for fixing the gas control device, the powder management device and the array spray head;
the electromagnetic shielding and heat insulation devices are respectively arranged at the upper end of the forming flat plate and the lower end of the supporting flat plate;
the inductors are arranged on the equipment shells on the two sides of the forming flat plate.
Preferably, the array nozzle comprises a nozzle device and a fixing plate; the spray head device is arranged below the fixing plate, the fixing plate comprises a plurality of mounting units, four holes are formed in the mounting units, the spray head device comprises a plurality of spray heads, the spray head is arranged below the mounting unit and comprises a guide pipe, a fixed clamping seat, a mixing module, a motor control module, a rotating nozzle and an electromagnetic valve, the four guide pipes are arranged, the four holes are arranged on the fixing clamping seat, the guide pipes respectively pass through the holes on the mounting unit and the fixing clamping seat and are mounted on the fixing clamping seat, the fixing clamping seat is mounted below the mounting unit, the mixing module is arranged below the fixed clamping seat, the guide pipes are converged into a pipeline in the mixing module, the motor control module is arranged below the mixing module, the rotating nozzle is connected below the motor control module, the four electromagnetic valves are respectively arranged on the guide pipes between the fixed clamping seat and the mixing module; two reinforcing ribs in a cross structure are arranged on the mounting unit.
Preferably, the edge of the fixing plate is provided with a rectangular boss.
Preferably, the bottom edge of the fixed clamping seat is provided with a boss structure, the top edge of the mixing module is provided with a corresponding groove structure, and the fixed clamping seat and the mixing module are matched and connected with each other through the boss and the groove.
Preferably, the gas control device comprises a gas rectifier, a valve controller and a gas pressure detector, and the gas rectifier is connected with the gas supply device.
The three-dimensional printer provided by the invention has the beneficial effects that:
1) after the model path planning system designs printing data, a printing device is started, a power supply device, a powder supply device and a gas supply device are started until the air pressure in the gas control device reaches a preset value and the consumable amount in the powder management device reaches the preset value, an inductor generates an alternating magnetic field to preheat a device in the printing device, according to the printing data information, the gas in the gas control device sends different kinds of powder in the powder management device to the array spray head through the pipeline to be fully mixed by using the gas of the gas control device according to the program of the equipment, spraying the powder in a designated direction under the action of an array spray head, and after the sprayed powder passes through an electromagnetic shielding and heat insulation device, when passing through a high-frequency magnetic field in an alternating magnetic field, induced current with the same frequency is generated, heat is generated, powder particles are melted, and spherical liquid drops are formed; the forming flat plate also generates induced current in a high-frequency alternating magnetic field to be heated, the surface is melted, spherical liquid drops fall and are stuck on the flat plate to be bonded and melted together to obtain a single-layer entity, meanwhile, the Z-axis moving guide rail drives the forming flat plate and the supporting flat plate to gradually descend to reserve a space for forming, the model is gradually thickened and heightened along with the accumulation of powder, and the skin effect in the high-frequency alternating magnetic field ensures that the induced current is unevenly distributed on a workpiece, the surface is strong, the inside is weak, the center is close to 0, the finished model is solidified inside and tends to be in a molten state outside, the surface of the model can continuously receive the sprayed powder by utilizing the skin effect, the entity can be formed simultaneously, and the forming part enters a non-alternating magnetic field area along with the Z-axis moving guide rail through an electromagnetic shielding and heat insulation. Flexibly adding and replacing various different consumable materials according to a printing task, and realizing combined printing of various materials by controlling the electromagnetic valve and the air pressure; a new heating means is used for melting the powder, so that the forming speed is greatly improved.
2) A single spray head in the array spray head can be connected with at most four types of powder, the electromagnetic valve independently controls the powder injection in each guide pipe, the output of at most 21 powder modes can be realized, the powder proportion in the mixed powder can be controlled by controlling the injection speed and the injection intensity of gas, and each spray head can be connected with other different types of powder to realize the printing of various materials in different proportions; an injection area is correspondingly arranged below each spray head, the motor control module can accurately control the rotation of the rotary spray nozzle to realize small-angle swing of the rotary spray nozzle, powder is accurately conveyed to each point in the corresponding area, each spray head is independently controlled and works simultaneously, and ultra-fast forming can be realized; be detachable structure between shower nozzle device and the fixed plate, appear damaging when single shower nozzle, can tear open and change into the shower nozzle of normal use, maintain convenient and fast, every shower nozzle comprises six independent modules, by tongue and groove and screwed connection, easy dismounting, the shower nozzle of damage only need change wherein the part that damages get off can reuse, maintains low cost.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the array head of the present invention;
FIG. 3 is a bottom view of the fixation plate of the present invention;
FIG. 4 is a schematic view of a showerhead of the present invention;
fig. 5 is a sectional view of the structure of the spray head of the present invention.
In the figure: 1. a model path planning system; 2. a power supply device; 3. a powder supply device; 4. a gas supply device; 5. a gas control device; 6. a powder management device; 7. a pipeline; 8. an array nozzle; 9. an electromagnetic shielding and heat insulating device; 10. an inductor; 11. forming a flat plate; 12. supporting the flat plate; 13. a Z-axis motion guide rail; 14. an air filter; 15. a connecting device; 16. an equipment housing; 801. a fixing plate; 802. a nozzle device; 803. a mounting unit; 804. a spray head; 805. a conduit; 806. fixing the card holder; 807. a mixing module; 808. a motor control module; 809. rotating the nozzle; 810. an electromagnetic valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 obtained by a person skilled in the art without making any inventive step are within the scope of the present invention.
Example (b): a three-dimensional printer.
A three-dimensional printer comprising: the system comprises a model path planning system 1 and a printing device, wherein the printing device comprises a power supply device 2, a powder supply device 3, a gas supply device 4, an air filter 14, a gas control device 5, a powder management device 6, a pipeline 7, an array spray head 8, an electromagnetic shielding and heat insulating device 9, an inductor 10, a forming flat plate 11, a supporting flat plate 12, a Z-axis motion guide rail 13, a connecting device 15 and an equipment shell 16;
the model path planning system 1 is connected with a printing device through a wireless network;
the power supply device 2, the powder supply device 3 and the gas supply device 4 are respectively connected with an equipment shell 16, and the air filter 14 is installed in the equipment shell 16;
the power supply device 2 comprises a main power supply and a standby power supply, wherein the main power supply supplies stable power for the whole set of equipment to ensure that the whole printing device normally runs a printing model, if the power failure condition occurs, the system is automatically switched to the standby power supply, the standby power supply continuously supplies power for a period of time, the equipment continuously prints, and if the power failure occurs within the specified time, the printing is automatically stopped according to a program to enter a shutdown state.
The powder supply device 3 supplies multiple kinds of printed powder for the equipment at the same time, and when certain powder is less than a critical value, an alarm device is triggered and related personnel are reminded to add consumables.
The gas supply device 4 can provide high-purity nitrogen or argon according to different printing tasks, simultaneously recover redundant gas in the air filter, filter impurities in the gas and recycle the gas.
The air filter 14 is mainly used to collect exhaust gas generated during printing, filter impurities therein, and recover the gas to the gas supply device 4.
The gas control device 5 is arranged at the top in the equipment shell 16 and is connected with the gas supply device 4; the gas control device 5 comprises a gas rectifier, a valve controller and a gas pressure detector, wherein the gas rectifier is used for stabilizing the gas in the gas supply device 4, the gas control device 5 comprises a plurality of gas valves which are opened or closed through the valve controller according to a program, and the gas pressure detector is used for detecting whether the gas in the gas control device 5 reaches a gas pressure value or not, and if the gas does not reach the gas pressure value, the gas control device starts an alarm device.
The powder management device 6 is arranged below the gas control device 5 and is connected with the powder supply device 3; powder management device 6 is divided into a plurality of cavitys according to the print task for pack into the powder of multiple difference, for the powder of equipment provides the different grade type, and powder management device 6 has detachable function simultaneously, changes the use at any time according to different print tasks.
The pipeline 7 is connected with the gas control device 5, the powder management device 6 and the array nozzle 8;
the forming flat plate 11 is arranged below the array spray head 8, the supporting flat plate 12 is arranged below the forming flat plate 11, and the Z-axis moving guide rail 13 is arranged below the supporting flat plate 12; the forming flat plate 11 can be heated in an alternating magnetic field, powder can be sprayed onto the platform and gradually stacked and formed, the supporting flat plate 12 is made of ceramic materials with good heat insulation effect and used for supporting and fixing the forming flat plate 11, and the Z-axis moving guide rail 13 is used for controlling the lifting of the forming flat plate 11 and the supporting flat plate 12.
The connecting device 15 is used for fixing the gas control device 5, the powder management device 6 and the array nozzle 8;
the electromagnetic shielding and heat insulating device 9 is respectively arranged at the upper end of the forming flat plate 11 and the lower end of the supporting flat plate 12; the device is used for shielding the alternating magnetic field, preventing the structure of the array spray head 8 and electronic components from being interfered and heated, and simultaneously separating heat generated in the forming chamber to keep the temperature of the forming chamber.
The equipment enclosure 16 encloses all the devices within the equipment, and is used to isolate the outside air, especially oxygen, and to ensure that the interior of the equipment is enclosed.
The inductor 10 is arranged on the equipment shell 16 at two sides of the forming flat plate 11, the inductor 10 is wound by a hollow copper tube, an alternating magnetic field is generated under the action of alternating current, metal powder and metal parts in the alternating magnetic field can generate alternating current to be heated and melted, and meanwhile, the generated model is quenched.
The algorithm of the model path planning system 1 is as follows:
s1, parts are imported, edited and placed, and parts areas are divided;
s2, specifying materials and a mixing mode;
s3, determining printing parameters (speed, temperature, support and the like), and acquiring printing information such as each layer of region set, material and the like;
and S4, converting the motor movement and gas pressure control codes, acquiring the whole part information, and packaging and converting the format.
The working principle is as follows: after the model path planning system 1 designs the printing data, the printing device is started, the power supply device 2, the powder supply device 3 and the gas supply device 4 are started until the air pressure in the gas control device 5 reaches a preset value, the consumable amount in the powder management device 6 reaches the preset value, simultaneously the inductor 10 generates an alternating magnetic field, the device in the printing device is preheated, according to the information of the printing data, the gas in the gas control device 5 sends the powder in the powder management device 6 to the array nozzle 8 through the pipeline 7 according to the program of the device by using the gas of the gas control device 5 according to the program to be fully mixed, the powder is sprayed to the appointed direction under the action of the array nozzle 8, the proportion of the powder in the material is distributed according to the specific proportion by the air pressure value of the gas, the proportion of the mixed powder is ensured to be correct, and whether the powder in the material is added or not is controlled by the electromagnetic valve in the array, after passing through the electromagnetic shielding and heat insulating device 9, the ejected powder generates induced current with the same frequency when passing through a high-frequency magnetic field in an alternating magnetic field, generates heat, melts powder particles and becomes spherical liquid drops; the forming flat plate 11 also generates induced current in a high-frequency alternating magnetic field to be heated, the surface is melted, spherical liquid drops fall and are adhered to the flat plate to be bonded and melted together to obtain a single-layer entity, meanwhile, the Z-axis moving guide rail 13 drives the forming flat plate 11 and the supporting flat plate 12 to gradually descend to reserve a space for forming, the model is gradually thickened and heightened along with the accumulation of powder, the skin effect in the high-frequency alternating magnetic field enables the induced current to be unevenly distributed on a workpiece, the surface is strong, the inside is weak, the center is close to 0, the finished model is solidified inside, the outside tends to be in a molten state, the skin effect is utilized, the surface of the model can continuously receive the sprayed powder, the entity can be formed, and the forming part enters a non-alternating magnetic field area along with the Z-axis moving guide rail 13 through the electromagnetic shielding heat insulation device 9. After the model is formed, high-frequency heating post-treatment can be carried out to eliminate the stress of the model, and the waste gas in the printing process is filtered by the air filter 14 and then circulated to the gas supply device 4 for continuous use.
The array head 8 includes: the fixing plate 801 is fixed on the printing equipment, rectangular bosses are arranged at the edge of the fixing plate 801 to facilitate connection with the equipment and placement and positioning, and the spray heads 804 are densely arranged on the fixing plate 801 in a rectangular shape; the middle of each mounting unit 803 is provided with two reinforcing rib structures for reinforcing the strength of the fixing plate 801 and also for serving as a fastening position and a positioning function for connecting with the spray head 804, and each mounting unit 803 is provided with four holes for inserting and fixing the guide pipe 805 of the spray head 804.
The spray head 804 comprises four guide pipes 805, a fixed clamping seat 806, a mixing module 807, a motor control module 808, a rotary nozzle 809 and an electromagnetic valve 810, wherein one end of each guide pipe 805 is connected with a pipeline of equipment, a mixture of metal powder and gas in the pipeline is guided into the spray head 804, the guide pipes 805 are connected with the fixed clamping seat 806 and are respectively connected with four holes on the fixed clamping seat 806, the fixed clamping seat 806 is connected with a fixed plate 801 through grooves and screws, the spray head 804 is prevented from falling off and is convenient to disassemble, a boss structure is arranged at the bottom edge of the fixed clamping seat 806 and is matched and connected with the groove structure at the top edge of the mixing module 807, the four guide pipes 805 connected in the mixing module 807 are converged into a pipeline from top to bottom and are used for mixing the powder from the four guide pipes; the mixing module 807 and the motor control module 808 are also connected through a concave-convex structure and screws, a middle pipeline is connected with a guide pipe 805 in the mixing module 807, powder is uniformly mixed through the middle pipeline, the outside of the pipeline is connected with the motor control module 808 and used for swinging the rotating nozzle 809, the rotating nozzle 809 and the motor control module 808 are in contact connection through a spherical surface, the rotating nozzle 809 has a swinging function and controls the powder to be sprayed to a set direction along with the rotation of the motor control module 808, the electromagnetic valves 810 are placed on the guide pipe 805 between the fixed clamping seat 806 and the mixing module 807, and the total number of the four electromagnetic valves is four, and the opening and closing of the powder and the spraying amount of the powder are respectively.
The spray head 804 is installed on the equipment, the direction of the rotating nozzle 809 is downward, four guide pipes 805 of the spray head 804 are sequentially connected with different pipelines, metal powder enters the spray head 804 from the equipment through the guide pipes 805, is mixed in the mixing module 807 through the electromagnetic valve 8010, is fully mixed in a pipeline of the motor control module 808, and is finally sprayed to a substrate in a designated direction through the rotating nozzle 809 for forming.
A single spray head 804 can be connected with at most four types of powder, the electromagnetic valve 810 can independently control the powder spray in each conduit 805, the output of at most 21 powder modes can be realized, the powder proportion in the mixed powder can be controlled by controlling the spray speed and the spray intensity of gas, and each spray head 804 can be connected with other different types of powder to realize the printing of different proportions of multiple materials;
a spraying area is correspondingly arranged below each spray head 804, the motor control module 808 can accurately control the rotation of the rotary spray nozzles 809 to realize small-angle swing of the rotary spray nozzles 809, powder is accurately sent to each point in the corresponding area, each spray head 804 is independently controlled and works simultaneously, and ultra-fast forming can be realized;
the detachable structure is arranged between the spray head mechanism 802 and the fixing plate 801, when a single spray head 804 is damaged, the spray head 804 can be detached and replaced into a normally used spray head 804, the maintenance is convenient and fast, each spray head 804 is composed of six independent modules and is connected by a concave-convex groove and a screw, the disassembly and the assembly are convenient, the damaged spray head 804 can be reused only by replacing the damaged part of the damaged spray head 804, and the maintenance cost is low.
The above description is only for the preferred embodiment of the present invention, but the present invention should not be limited to the embodiment and the disclosure of the drawings, and therefore, all equivalent or modifications that do not depart from the spirit of the present invention are intended to fall within the scope of the present invention.
Claims (5)
1. A three-dimensional printer, comprising: the system comprises a model path planning system and a printing device, wherein the printing device comprises a power supply device, a powder supply device, a gas supply device, an air filter, a gas control device, a powder management device, a pipeline, an array spray head, an electromagnetic shielding and heat insulation device, an inductor, a forming flat plate, a supporting flat plate, a Z-axis motion guide rail, a connecting device and an equipment shell;
the model path planning system is connected with the printing device through a wireless network;
the power supply device, the powder supply device and the gas supply device are respectively connected with the equipment shell, and the air filter is arranged in the equipment shell;
the gas control device is arranged at the top in the equipment shell and is connected with the gas supply device;
the powder management device is arranged below the gas control device and is connected with the powder supply device;
the pipeline is connected with the gas control device, the powder management device and the array spray head;
the forming flat plate is arranged below the array spray head, the supporting flat plate is arranged below the forming flat plate, and the Z-axis motion guide rail is arranged below the supporting flat plate;
the connecting device is used for fixing the gas control device, the powder management device and the array spray head;
the electromagnetic shielding and heat insulation devices are respectively arranged at the upper end of the forming flat plate and the lower end of the supporting flat plate;
the inductors are arranged on the equipment shells on the two sides of the forming flat plate.
2. The three-dimensional printer according to claim 1, wherein: the array nozzle comprises a nozzle device and a fixing plate; the spray heads are arranged on the fixing plate in a rectangular shape and are densely installed on the fixing plate, the fixing plate comprises a plurality of installation units, the installation units are provided with four holes, the spray head device comprises a plurality of spray heads, the spray heads are arranged below the installation units, each spray head comprises a guide pipe, a fixing clamping seat, a mixing module, a motor control module, a rotating nozzle and an electromagnetic valve, four guide pipes are arranged on the fixing clamping seats, the guide pipes respectively penetrate through the installation units and the holes in the fixing clamping seats and are installed on the fixing clamping seats, the fixing clamping seats are installed below the installation units, the mixing module is installed below the fixing clamping seats, the guide pipes are converged into a pipeline in the mixing module, the motor control module is arranged below the mixing module, the rotating nozzle is connected below the motor control module through spherical surface contact, and the rotating nozzle is connected with the motor control module through spherical, the four electromagnetic valves are respectively arranged on the guide pipes between the fixed clamping seat and the mixing module; two reinforcing ribs in a cross structure are arranged on the mounting unit.
3. The three-dimensional printer according to claim 2, characterized in that: the fixed plate edge is provided with a rectangular boss.
4. The three-dimensional printer according to claim 3, wherein: the fixed clamping seat is provided with a boss structure at the bottom edge, a corresponding groove structure is arranged at the top edge of the mixing module, and the fixed clamping seat and the mixing module are matched and connected with each other through a boss and a groove.
5. The three-dimensional printer according to claim 1, wherein: the gas control device comprises a gas rectifier, a valve controller and a gas pressure detector, wherein the gas rectifier is connected with a gas supply device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810556634.3A CN108705085B (en) | 2018-06-01 | 2018-06-01 | Three-dimensional printer |
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| CN201810556634.3A CN108705085B (en) | 2018-06-01 | 2018-06-01 | Three-dimensional printer |
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| CN108705085B true CN108705085B (en) | 2020-01-14 |
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| CN109334000A (en) * | 2018-10-31 | 2019-02-15 | 广东汉邦激光科技有限公司 | Power spreading device and 3D printing device |
| US11065815B2 (en) * | 2018-12-18 | 2021-07-20 | General Electric Company | Powder dispensing assembly for an additive manufacturing machine |
| CN109664508B (en) * | 2019-01-29 | 2024-01-02 | 姚光纯 | 3D printing forming device and method for matrix arrangement of spray heads |
| CN112848314A (en) * | 2021-03-12 | 2021-05-28 | 杜晖 | Three-dimensional injection molding equipment without mold |
| CN113997568B (en) * | 2021-10-28 | 2024-05-24 | 广西大学 | Airbag type substrate device for powder bed 3D printing and use method thereof |
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| US7201940B1 (en) * | 2001-06-12 | 2007-04-10 | Advanced Cardiovascular Systems, Inc. | Method and apparatus for thermal spray processing of medical devices |
| CN103014613B (en) * | 2012-12-31 | 2015-07-29 | 上海大学 | The method of thermodiffusion continuous production stalloy and stalloy tandem rolling device thereof |
| CN106363176A (en) * | 2016-08-31 | 2017-02-01 | 安徽奥斯博医疗仪器设备有限公司 | Printing consumables memory chip |
| CN107877010B (en) * | 2017-12-15 | 2019-02-22 | 广东工业大学 | A kind of processing unit (plant) of micro-nano hole array |
| CN208452302U (en) * | 2018-06-01 | 2019-02-01 | 佛山市南海区广工大数控装备协同创新研究院 | A kind of three-dimensional printer with array spray head |
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