CN110370636B - A two-way shop powder device for 3D printing technology - Google Patents
A two-way shop powder device for 3D printing technology Download PDFInfo
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- CN110370636B CN110370636B CN201910692514.0A CN201910692514A CN110370636B CN 110370636 B CN110370636 B CN 110370636B CN 201910692514 A CN201910692514 A CN 201910692514A CN 110370636 B CN110370636 B CN 110370636B
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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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
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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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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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
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
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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
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/22—Driving means
- B22F12/226—Driving means for rotary motion
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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
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/60—Planarisation devices; Compression devices
- B22F12/67—Blades
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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
- B22F3/005—Loading or unloading powder metal objects
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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
- B29C64/205—Means for applying layers
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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
- B29C64/205—Means for applying layers
- B29C64/214—Doctor blades
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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
- B29C64/314—Preparation
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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
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Producing Shaped Articles From Materials (AREA)
Abstract
The invention discloses a bidirectional powder spreading device for a 3D printing process, which relates to the technical field of 3D printing and comprises two connecting frames, wherein the two connecting frames correspond to two guide rails one by one and are in sliding connection; the powder container comprises a feeding hole and a discharging hole, and the left side and the right side of the powder container correspond to the two connecting frames one by one and are fixedly connected with the two connecting frames; a blanking plate rotatably disposed outside the powder container to open and close the discharge port; the scraper blade is used for smoothing the powder and is rotatably arranged outside the powder container so as to control the compactness of the powder; and the stirring device is rotatably arranged in the powder container to break up and convey the powder. Compared with a vibration powder paving mode, the bidirectional powder paving device for the 3D printing process is noiseless in the powder paving process, the stirring device can effectively avoid powder caking, the blanking plate can accurately control the powder output, and the scraper can adjust the compact degree of the paved powder.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a bidirectional powder laying device for a 3D printing process.
Background
For 3D printing equipment, the process usually includes laying a layer of powder or granular material on a table, where the granular material may be metal powder, foundry sand, plastic powder, etc., and then curing and molding the layer of powder in an area selected by control software, where the area is usually a cross-section of the produced workpiece, by laser sintering or spraying an adhesive. Thus, the required workpieces are printed layer by layer and formed in an accumulated mode. The existing powder paving device comprises a vibration structure and a scraper, two opposite sides of a workbench of the 3D printing equipment are respectively provided with a guide rail, the vibration structure is connected with the guide rails in a sliding mode, the powder paving process enables powder to fall onto the workbench of the 3D printing equipment through the vibration structure, the falling powder is leveled by the scraper, the powder paving mode often causes the problem that powder is agglomerated and cannot be discharged, and the powder discharging amount and the degree of compactness of the paved powder are uncontrollable. Noise due to vibration is also a major source of noise in 3D printing shops, typically reaching 80-90 db.
Therefore, how to provide a powder paving device which has no noise, can effectively avoid powder caking and can control the powder output and the compactness of the paved powder is a problem to be solved urgently at present.
Disclosure of Invention
In order to solve the technical problems, the invention provides the bidirectional powder laying device for the 3D printing process, which has no noise, can effectively avoid powder caking and can control the powder output and the compactness of laid powder.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a bidirectional powder spreading device for a 3D printing process, which comprises two connecting frames, a powder spreading device and a powder spreading device, wherein the two connecting frames correspond to two guide rails one to one and are in sliding connection; the left side and the right side of the powder container correspond to the two connecting frames one by one and are fixedly connected with the connecting frames; a material falling plate rotatably provided outside the powder container to open and close the discharge port; a scraper for smoothing the powder, which is rotatably disposed outside the powder container to control the degree of compaction of the powder; a stirring device rotatably provided inside the powder container to break up and convey the powder; the first power device is in transmission connection with the stirring device so as to drive the stirring device to rotate; the second power device is in transmission connection with the blanking plate so as to drive the blanking plate to rotate; and the third power device is in transmission connection with the scraper so as to drive the scraper to rotate.
Preferably, the discharge port is arranged on the lower surface of the powder container, the lower surface of the powder container is an arc surface, the blanking plate is an arc-shaped blanking plate, the upper surface of the blanking plate is attached to the lower surface of the powder container, and the blanking plate rotates around the axis of the arc surface.
Preferably, the scraper is of a straight plate structure.
Preferably, the stirring device comprises a central shaft and a helical blade, the helical blade is spirally wound on the outer side wall of the central shaft along the length direction of the central shaft, and two ends of the central shaft respectively penetrate through the left side and the right side of the powder container and are respectively and rotatably connected with the left side and the right side of the powder container.
Preferably, the first power device comprises a motor and a conveyor belt, and the output end of the motor is in transmission connection with one end of the central shaft through the conveyor belt.
Preferably, the left and right sides of blanking plate is provided with first curb plate and second curb plate respectively, the left and right sides of scraper blade is provided with third curb plate and fourth curb plate respectively, be provided with first pivot on the first curb plate, be provided with first through-hole on the second curb plate, be provided with the second through-hole on the third curb plate, be provided with the second pivot on the fourth curb plate, first pivot rotationally install in the second through-hole, the second pivot rotationally install in the first through-hole, first pivot with the transmission of second power device is connected, the second pivot with the transmission of third power device is connected.
Preferably, the second power device comprises a first tilt cylinder, and the first tilt cylinder is in transmission connection with the first rotating shaft.
Preferably, the third power device comprises a second tilt cylinder, and the second tilt cylinder is in transmission connection with the second rotating shaft.
Preferably, the connecting frame comprises a guide rail connecting plate and an intermediate fixing plate which are fixedly connected, the guide rail connecting plate is slidably connected with the guide rail, and the intermediate fixing plate is fixedly connected with the powder container.
Preferably, the guide rail connecting plate comprises a first connecting plate and a second connecting plate which are perpendicular to each other, the middle fixing plate comprises a first fixing plate and a second fixing plate which are perpendicular to each other, the first connecting plate is parallel to the first fixing plate, the second connecting plate is parallel to the second fixing plate, the lower side of the first connecting plate is fixedly connected with the second connecting plate, the second connecting plate is slidably connected with the guide rail, the upper side of the first connecting plate is fixedly connected with the second fixing plate, the upper side of the first fixing plate is fixedly connected with the second fixing plate, and the first fixing plate is fixedly connected with the powder container. Compared with the prior art, the invention has the following technical effects:
the invention provides a bidirectional powder spreading device for a 3D printing process, which comprises two connecting frames, wherein the two connecting frames correspond to two guide rails one by one and are in sliding connection; the powder container comprises a feeding hole and a discharging hole, and the left side and the right side of the powder container correspond to the two connecting frames one by one and are fixedly connected with the two connecting frames; a blanking plate rotatably disposed outside the powder container to open and close the discharge port; the scraper blade is used for smoothing the powder and is rotatably arranged outside the powder container so as to control the compactness of the powder; a stirring device rotatably disposed inside the powder container to break up and convey the powder; the first power device is in transmission connection with the stirring device so as to drive the stirring device to rotate; the second power device is in transmission connection with the blanking plate so as to drive the blanking plate to rotate; and the third power device is in transmission connection with the scraper so as to drive the scraper to rotate. Compared with a vibration powder paving mode, the bidirectional powder paving device for the 3D printing process is noiseless in the powder paving process, the stirring device can effectively avoid powder agglomeration, the blanking plate can accurately control the powder output, and the scraper can adjust the compact degree of the paved powder.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed 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 creative efforts.
Fig. 1 is a schematic structural diagram of a bidirectional powder spreading device for a 3D printing process provided in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural diagram of a blanking plate according to an embodiment of the present invention;
FIG. 4 is a schematic view showing the structure of a squeegee according to an embodiment of the invention;
FIG. 5 is an enlarged view of section C of FIG. 2;
FIG. 6 is an enlarged view of section D of FIG. 2;
FIG. 7 is a sectional view taken at H-H of FIG. 2;
FIG. 8 is a first state diagram of FIG. 7;
fig. 9 is a second state diagram of fig. 7.
Description of reference numerals: 1. lifting the table top; 2. a guide rail; 3. a powder container; 4. a blanking plate; 5. a squeegee; 6. a motor; 7. a second power unit; 8. a third power unit; 9. a first connecting plate; 10. a second connecting plate; 11. a first fixing plate; 12. a second fixing plate; 13. a feed inlet; 14. a first discharge port; 15. a second discharge port; 16. a central shaft; 17. a helical blade; 18. a conveyor belt; 19. a first rotating shaft; 20. a first through hole; 21. a second rotating shaft; 22. a second through hole; 23. a work bench.
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.
The invention aims to provide a two-way powder laying device for a 3D printing process, which has no noise, can effectively avoid powder agglomeration and can control the powder yield and the compactness of laid powder.
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.
The first embodiment is as follows:
the embodiment provides a bidirectional powder spreading device for a 3D printing process, as shown in fig. 1-2, comprising two connecting frames, which are in one-to-one correspondence and slidably connected with two guide rails 2; the powder container 3 comprises a feeding hole 13 and a discharging hole, and the left side and the right side of the powder container 3 correspond to the two connecting frames one by one and are fixedly connected with the two connecting frames; a blanking plate 4 rotatably provided outside the powder container 3 to open and close the discharge port; a scraper 5 for smoothing the powder, which is rotatably provided outside the powder container 3 to control the degree of compaction of the powder; a stirring device rotatably provided inside the powder container 3 to break up and convey the powder; the first power device is in transmission connection with the stirring device so as to drive the stirring device to rotate; the second power device 7 is in transmission connection with the blanking plate 4 to drive the blanking plate 4 to rotate; and the third power device 8 is in transmission connection with the scraper 5 to drive the scraper 5 to rotate. Compared with a vibration powder paving mode, the bidirectional powder paving device for the 3D printing process is noiseless in powder paving process, the stirring device can effectively avoid powder caking, the blanking plate 4 can accurately control the powder output, and the scraper 5 can adjust the compact degree of the paved powder.
It should be noted that the guide rail 2 is the guide rail 2 of 3D printing apparatus self-carrying, through making link and guide rail 2 sliding connection during the use, the link can drive powder container 3 along 3D printing apparatus workstation 23 reciprocating motion, realize two-way shop's powder, and current 3D printing apparatus workstation 23 includes lift mesa 1, should be used for 3D printing process two-way shop's powder device during the use with the discharge gate relative with lift mesa 1, lift mesa 1 goes up and down in order to realize the layer-by-layer shop's powder.
Example two:
the embodiment includes all the technical features of the first embodiment, except that, as shown in fig. 3 to 9, the discharge ports are disposed on the lower surface of the powder container 3, the number of the discharge ports in the embodiment is specifically 2, and the discharge ports are respectively the first discharge port 14 and the second discharge port 15, the first discharge port 14 and the second discharge port 15 are arranged in parallel, and optionally, the feed port 13 is disposed above the powder container 3, the lower surface of the powder container 3 is an arc surface, the blanking plate 4 is an arc blanking plate, the upper surface of the blanking plate 4 is attached to the lower surface of the powder container 3, and the blanking plate 4 rotates around the axis of the arc surface; the scraper 5 is of a straight plate structure; the left side and the right side of the blanking plate 4 are respectively provided with a first side plate and a second side plate, the left side and the right side of the scraping plate 5 are respectively provided with a third side plate and a fourth side plate, the first side plate is provided with a first rotating shaft 19, the second side plate is provided with a first through hole 20, the third side plate is provided with a second through hole 22, the fourth side plate is provided with a second rotating shaft 21, the first rotating shaft 19 is rotatably arranged in the second through hole 22, the second rotating shaft 21 is rotatably arranged in the first through hole 20, the first rotating shaft 19 is in transmission connection with the second power device 7, and the second rotating shaft 21 is in transmission connection with the third power device 8; the second power device 7 comprises a first tilt cylinder which is in transmission connection with the first rotating shaft 19; the third power device 8 comprises a second tilt cylinder, and the second tilt cylinder is in transmission connection with the second rotating shaft 21. So set up, the rotation of blanking plate 4 and scraper blade 5 does not influence each other, and should be used for two-way shop's powder device compact structure of 3D printing technology, small.
Referring to fig. 1 and 2, at the beginning of the work, the powder container 3 takes the end a (or end B) as the starting point in the drawing, and simultaneously lays a first layer of powder material on the lifting table 1 of the 3D printing device workbench 23 in the process of moving to the end B (or end a). Then the lifting table board 1 descends for a certain distance, the device moves from the end B (or the end A) to the end A (or the end B), and meanwhile, a second layer of powder is laid on the previous layer of powder. The operation is repeated in such a circulating way, and the powder is spread in two directions, so that all the powder spreading procedures are completed.
When the powder container 3 moves from the end A to the end B and powder is laid, the blanking plate 4 stops after rotating clockwise for a certain angle, the scraper 5 stops after rotating anticlockwise for a certain angle, and the stirring device synchronously rotates anticlockwise along with the movement of the powder container 3, so that the powder is loosened and not agglomerated, and the continuous and sufficient discharge of the powder is ensured. At this moment, the first discharging port 14 is not shielded by the blanking plate 4, the powder can flow out from the first discharging port 14 under the combined action of the self gravity and the stirring device, and after the scraper 5 contacts the falling powder in the moving process, certain thrust and pressure can be applied to the powder due to the fact that the lower surface of the scraper is inclined at a certain angle with the horizontal plane, and the powder is enabled to be uniformly laid on the lifting table board 1 of the 3D printing equipment workbench 23 or on the powder of the previous layer.
When the powder container 3 moves from the end B to the end A and lays powder, the blanking plate 4 rotates anticlockwise for a certain angle and stops, the scraper 5 rotates clockwise for a certain angle and the stirring device synchronously rotates clockwise along with the movement of the powder container 3, so that the powder is loosened and not agglomerated, and the continuous and sufficient discharge of the powder is ensured. At the moment, the second discharge port 15 is not shielded by the blanking plate 4 any more, the powder can flow out from the second discharge port 15 under the combined action of the self gravity and the stirring device, and the scraper 5 can also apply certain thrust and pressure to the contacted powder, so that the powder is uniformly laid on the powder of the previous layer.
By controlling the rotation angle of the blanking plate 4, the sheltered areas of the first discharge hole 14 and the second discharge hole 15 can be controlled, and the powder discharge amount can be controlled. By controlling the rotation angle of the scraper 5, the angle between the scraper 5 and the horizontal plane can be controlled, and further the pressure of the scraper 5 on the contacted powder can be controlled, so that the purpose of controlling the compactness of the laid powder is achieved. The parameters of the rotation angle, the powder output amount, the pressure, the compaction degree and the like need to be tested according to the actually used powder material, so that the optimal value suitable for production and use can be determined.
Example three:
the present embodiment includes all the technical features of the first embodiment, except that, as shown in fig. 2, the stirring device includes a central shaft 16 and a helical blade 17, the helical blade 17 is spirally wound on the outer side wall of the central shaft 16 along the length direction of the central shaft 16, and two ends of the central shaft 16 respectively penetrate through the left side and the right side of the powder container 3 and are respectively rotatably connected with the left side and the right side of the powder container 3; the first power device comprises a motor 6 and a conveyor belt 18, and the output end of the motor 6 is in transmission connection with one end of the central shaft 16 through the conveyor belt 18. So set up, agitating unit can conveniently break up fast and carry the powder.
Example four:
the present embodiment includes all the technical features of the first embodiment, except that, as shown in fig. 1 to 6, the connection frame includes a guide rail connection plate and an intermediate fixing plate, the guide rail connection plate is slidably connected with the guide rail 2, the intermediate fixing plate is fixedly connected with the powder container 3, the guide rail connection plate includes a first connection plate 9 and a second connection plate 10 which are perpendicular to each other, the intermediate fixing plate includes a first fixing plate 11 and a second fixing plate 12 which are perpendicular to each other, the first connection plate 9 is parallel to the first fixing plate 11, the second connection plate 10 is parallel to the second fixing plate 12, the lower side of the first connection plate 9 is fixedly connected with the second connection plate 10, the second connection plate 10 is slidably connected with the guide rail 2, the upper side of the first connection plate 9 is fixedly connected with the second fixing plate 12, the upper side of the first fixing plate 11 is fixedly connected with the second fixing plate 12, the first fixing plate 11 is fixedly connected with, in this embodiment, specifically, the upside of first connecting plate 9 and the right side fixed connection of second fixed plate 12, the downside of first connecting plate 9 and the right side fixed connection of second connecting plate 10, the upside of first fixed plate 11 and the left side fixed connection of second fixed plate 12, first connecting plate 9, second connecting plate 10, first fixed plate 11 and second fixed plate 12 enclose into an installation space, in the use first power device, second power device 7 and third power device 8 mountable are in the installation space, so set up, this a two-way shop powder device structure for 3D printing technology is compacter, the volume is littleer.
It should be noted that "up", "down", "left" and "right" in the present invention refer to the two-way powder spreading device for 3D printing process when it is placed as shown in fig. 1.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. A bidirectional powder laying device for a 3D printing process is characterized by comprising,
the two connecting frames correspond to the two guide rails one by one and are connected in a sliding manner;
the left side and the right side of the powder container correspond to the two connecting frames one by one and are fixedly connected with the connecting frames;
a material falling plate rotatably provided outside the powder container to open and close the discharge port;
a scraper for smoothing the powder, which is rotatably disposed outside the powder container to control the degree of compaction of the powder;
a stirring device rotatably provided inside the powder container to break up and convey the powder;
the first power device is in transmission connection with the stirring device so as to drive the stirring device to rotate;
the second power device is in transmission connection with the blanking plate so as to drive the blanking plate to rotate;
the third power device is in transmission connection with the scraper so as to drive the scraper to rotate;
the left and right sides of blanking plate is provided with first curb plate and second curb plate respectively, the left and right sides of scraper blade is provided with third curb plate and fourth curb plate respectively, be provided with first pivot on the first curb plate, be provided with first through-hole on the second curb plate, be provided with the second through-hole on the third curb plate, be provided with the second pivot on the fourth curb plate, first pivot rotationally install in the second through-hole, the second pivot rotationally install in the first through-hole, first pivot with the transmission of second power device is connected, the second pivot with the transmission of third power device is connected.
2. The bidirectional powder spreading device for the 3D printing process according to claim 1, wherein the discharge port is arranged on the lower surface of the powder container, the lower surface of the powder container is an arc surface, the blanking plate is an arc-shaped blanking plate, the upper surface of the blanking plate is attached to the lower surface of the powder container, and the blanking plate rotates around the axis of the arc surface.
3. The bi-directional powder spreading device for a 3D printing process according to claim 1, wherein the scraper is of a straight plate structure.
4. The bidirectional powder spreading device for the 3D printing process according to claim 1, wherein the stirring device comprises a central shaft and spiral blades, the spiral blades are spirally wound on the outer side wall of the central shaft along the length direction of the central shaft, and two ends of the central shaft respectively penetrate through the left side and the right side of the powder container and are respectively connected with the left side and the right side of the powder container in a rotating manner.
5. The bidirectional powder spreading device for the 3D printing process according to claim 4, wherein the first power device comprises a motor and a conveyor belt, and an output end of the motor is in transmission connection with one end of the central shaft through the conveyor belt.
6. The bidirectional powder spreading device for the 3D printing process according to claim 1, wherein the second power device comprises a first tilt cylinder, and the first tilt cylinder is in transmission connection with the first rotating shaft.
7. The bidirectional powder spreading device for the 3D printing process according to claim 1, wherein the third power device comprises a second tilt cylinder, and the second tilt cylinder is in transmission connection with the second rotating shaft.
8. The bidirectional powder spreading device for the 3D printing process according to claim 1, wherein the connecting frame comprises a guide rail connecting plate and an intermediate fixing plate which are fixedly connected, the guide rail connecting plate is slidably connected with the guide rail, and the intermediate fixing plate is fixedly connected with the powder container.
9. The bidirectional powder spreading device for the 3D printing process according to claim 8, wherein the guide rail connecting plate comprises a first connecting plate and a second connecting plate which are perpendicular to each other, the middle fixing plate comprises a first fixing plate and a second fixing plate which are perpendicular to each other, the first connecting plate and the first fixing plate are parallel to each other, the second connecting plate and the second fixing plate are parallel to each other, the lower side of the first connecting plate is fixedly connected with the second connecting plate, the second connecting plate is slidably connected with the guide rail, the upper side of the first connecting plate is fixedly connected with the second fixing plate, the upper side of the first fixing plate is fixedly connected with the second fixing plate, and the first fixing plate is fixedly connected with the powder container.
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| DE102019007480A1 (en) * | 2019-10-26 | 2021-04-29 | Laempe Mössner Sinto Gmbh | Arrangement and method for producing a layer of a particulate building material in a 3D printer |
| CN111976137A (en) * | 2020-09-15 | 2020-11-24 | 佘峰 | Feeding mechanism for 3D printer |
| CN112536961B (en) * | 2020-11-16 | 2022-06-07 | 九江鸿利达复合材料制造有限公司 | Novel resin synthetic board manufacturing equipment |
| CN112606390A (en) * | 2020-11-20 | 2021-04-06 | 安徽哈特三维科技有限公司 | Vibration powder spreading device of selective laser melting forming equipment |
| CN113524669B (en) * | 2021-07-07 | 2023-05-16 | 山东创瑞激光科技有限公司 | Powder falling and scraping structure suitable for double-laser printing equipment |
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| CN205237067U (en) * | 2015-12-01 | 2016-05-18 | 南京中科煜宸激光技术有限公司 | A two -way shop powder device for quick shaping manufacturing |
| CN205553259U (en) * | 2016-04-12 | 2016-09-07 | 湖南华曙高科技有限责任公司 | A send whitewashed system and send powder paving device for making three -dimensional body |
| CN108067613A (en) * | 2016-11-15 | 2018-05-25 | 东台精机股份有限公司 | The powder feeder unit of powdering machine |
| WO2018227229A1 (en) * | 2017-06-15 | 2018-12-20 | AmPro Innovations Pty Ltd | Improved additive manufacturing of metallic components |
| KR102003217B1 (en) * | 2017-09-28 | 2019-07-24 | (주)센트롤 | Three-dimensional object |
| CN107599383B (en) * | 2017-10-31 | 2020-03-31 | 陕西聚高增材智造科技发展有限公司 | Laser selective melting/sintering binary powder laying system |
| CN107695354A (en) * | 2017-11-13 | 2018-02-16 | 黎硕三维科技发展（上海）有限公司 | A kind of powder supplying mechanism of laser sintered equipment |
| CN108946108A (en) * | 2018-05-31 | 2018-12-07 | 苏州西帝摩三维打印科技有限公司 | The two-way powder supply scraper power spreading device of selective laser melting |
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