CN113695603B - High-temperature smoke and dust exhaust system with standby air inlet for 3D printer - Google Patents
High-temperature smoke and dust exhaust system with standby air inlet for 3D printer Download PDFInfo
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- CN113695603B CN113695603B CN202111005233.7A CN202111005233A CN113695603B CN 113695603 B CN113695603 B CN 113695603B CN 202111005233 A CN202111005233 A CN 202111005233A CN 113695603 B CN113695603 B CN 113695603B
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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
- B22F12/70—Gas flow means
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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
- B22F12/90—Means for process control, e.g. cameras or sensors
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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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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Abstract
The invention is applicable to the technical field of 3D printing equipment, and provides a high-temperature smoke dust discharge system with a standby air inlet for a 3D printer, which comprises a forming bin, wherein the top of the forming bin is provided with a plurality of groups of laser vibrating mirrors, and the bottom of the forming bin is provided with a dust collecting mechanism; the vortex detection device is arranged in the forming bin; the air supply mechanism is arranged on the first side wall of the forming bin and comprises a first air inlet assembly, a vortex eliminating mechanism, a standby air inlet and a second air inlet assembly which are arranged on the first side wall in parallel; the exhaust mechanism is arranged on the second side wall of the forming bin; the first side wall and the second side wall are oppositely arranged; and a control unit for controlling the operation of the vortex eliminating mechanism to eliminate the vortex generated at the time of operation when the vortex detecting device detects the vortex. The control unit controls the vortex eliminating mechanism to work so as to eliminate the vortex generated in the forming bin during work, so that smoke dust collected in the middle due to the vortex is blown out, the smoke dust is prevented from falling on a workpiece, and the quality of the workpiece is improved.
Description
Technical Field
The invention belongs to the technical field of 3D printing equipment, and particularly relates to a high-temperature smoke dust discharging system with a standby air inlet for a 3D printer.
Background
Metal 3D printing is an emerging technology in the field of manufacturing that is rapidly evolving, and particularly, there are many types of metal 3D printers in developed countries in europe and america. Metal 3D printing is an additive manufacturing technology, which is based on digital model files, and three-dimensional objects are printed layer by sintering metal powder by laser. The 3D printer forming chamber needs absolute sealing, and during printing, inert gas such as argon is often filled in to ensure the chemical stability of the parts printed in the forming chamber. In the printing process, metal printing is performed by sintering metal powder by laser to generate parts, and the laser sintering can cause smoke generation and splash of the metal powder.
When the existing large printer is used for printing, because the space inside the bin body is larger, an air inlet with a larger area and larger wind force are needed for dedusting, and vortex is easy to form in the middle of the bin body; when the printer stops working, smoke dust remained in the bin body due to vortex can fall into the workpiece, and the quality of the workpiece is affected.
Disclosure of Invention
The invention provides a high-temperature smoke dust discharging system with a standby air inlet for a 3D printer, which can effectively solve the problems.
The invention is realized in the following way:
a high temperature smoke evacuation system for a 3D printer having a backup air intake, comprising:
the top of the forming bin is provided with a plurality of groups of laser vibrating mirrors, and the bottom of the forming bin is provided with a dust collecting mechanism;
the vortex detection device is arranged in the forming bin;
the air supply mechanism is arranged on the first side wall of the forming bin and comprises a first air inlet assembly and a second air inlet assembly which are arranged at the upper end and the lower end of the first side wall in parallel;
the exhaust mechanism is arranged on the second side wall of the forming bin, and the first side wall and the second side wall are oppositely arranged; and
the vortex eliminating mechanism and the standby air inlet are arranged on the first side wall, and the vortex eliminating mechanism and the standby air inlet are positioned between the first air inlet assembly and the second air inlet assembly;
and the control unit is used for controlling the vortex eliminating mechanism to work so as to eliminate the vortex generated when the first air inlet assembly and the second air inlet assembly work when the vortex detecting device detects the vortex.
As a further improvement, the vortex eliminating mechanism comprises a diffusion homogenizing pipe arranged on one side of the forming bin, a connecting pipeline communicated with the diffusion homogenizing pipe and a baffle communicated with the diffusion homogenizing pipe through a guide piece, wherein a control valve is arranged on the connecting pipeline, and a plurality of micropores are arranged on the baffle.
As a further development, the openings of the diffuser flow homogenizing tube become progressively larger in the direction of the gas flow, with an angle in the range of 90 ° to 150 °.
As a further improvement, a splitter plate is arranged in the direction of the large opening end of the diffusion uniform flow pipe, and a plurality of layers of splitter cavities are arranged on the splitter plate.
As a further improvement, the openings of the first air inlet assembly and the second air inlet of the second air inlet assembly are gradually reduced along the air flow direction, and the angle range is 90-150 degrees.
As a further improvement, the opening area of the diffusion homogenizing pipe is larger than the sum of the areas of the first air inlet and the second air inlet.
As a further improvement, the high-temperature smoke dust discharging system for the 3D printer with the standby air inlet further comprises a lifting mechanism arranged at the bottom of the forming bin; the dust collection mechanism comprises funnel-shaped powder leakage grooves which are arranged at the bottom of the forming bin and positioned at two sides of the lifting mechanism, and a collection box connected with the powder leakage grooves.
As a further improvement, a sliding mechanism is arranged in the forming bin, and a scraper component is arranged on the sliding mechanism in a sliding manner; and the upper end of the molding bin is provided with a powder outlet component.
As a further improvement, the high-temperature smoke dust exhaust system for the 3D printer with the standby air inlet further comprises a purifier, and the first air inlet assembly, the second air inlet assembly, the vortex eliminating mechanism and the air exhaust mechanism are all connected with the purifier.
As a further improvement, the top of the molding bin is also provided with an air outlet device, and the air outlet direction of the air outlet device is perpendicular to the air inlet direction of the vortex eliminating mechanism.
The beneficial effects of the invention are as follows: according to the invention, a first air inlet assembly, a vortex eliminating mechanism and a second air inlet assembly are sequentially arranged on a first side wall of a forming bin from top to bottom, and an air exhaust mechanism is arranged on a second side wall opposite to the first side wall; the inside vortex detection device that is used for detecting its vortex that sets up in shaping storehouse, when vortex detection device detected the vortex, the control unit control vortex elimination mechanism work was in order to eliminate the vortex that first air inlet subassembly and second air inlet subassembly during operation produced to will blow off the smoke and dust at the middle part because of the vortex, prevent that the smoke and dust from dropping on the work piece, improve work piece quality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a high-temperature smoke exhaust system for a 3D printer with a standby air inlet according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a partial structure of a high-temperature smoke exhaust system for a 3D printer with a standby air inlet according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of another partial structure of a high-temperature smoke exhaust system for a 3D printer with a standby air inlet according to an embodiment of the present invention;
FIG. 4 is a partial cross-sectional view of a high temperature fume exhaust system for a 3D printer with a backup air intake provided by an embodiment of the present invention;
FIG. 5 is a right side view of FIG. 4;
FIG. 6 is a schematic view of an airflow cycle in which only an air supply mechanism is provided;
fig. 7 is a schematic diagram of airflow circulation when the high-temperature smoke exhaust system with the standby air inlet for the 3D printer according to the embodiment of the invention works.
Reference numerals:
10-a molding bin; 20-laser galvanometer; 30-a dust collection mechanism; 11-a first sidewall; 12-a second sidewall; 40-an air supply mechanism; 41-a first air inlet assembly; 42-a second air inlet assembly; 50-an exhaust mechanism; 60-vortex elimination mechanism; 61-diffusion homogenizing pipe; 62-connecting the pipelines; 63-a baffle; 64-control valve; 631-microwells; 70-lifting mechanism; 31-a powder leakage groove; 80-a doctor blade assembly; 90-a powder discharging component; 100-a standby air inlet.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1-7, a high temperature fume exhaust system for a 3D printer having a backup air inlet, comprising:
the top of the molding bin 10 is provided with a plurality of groups of laser vibrating mirrors 20, and the bottom of the molding bin is provided with a dust collecting mechanism 30;
a vortex detecting device arranged in the molding bin 10;
the air supply mechanism 40 is arranged on the first side wall 11 of the molding bin 10 and comprises a first air inlet assembly 41 and a second air inlet assembly 42 which are arranged at the upper end and the lower end of the first side wall 11 in parallel;
an air exhausting mechanism 50 arranged on the second side wall 12 of the molding bin 10, wherein the first side wall 11 and the second side wall 12 are oppositely arranged; and
a vortex elimination mechanism 60 and a standby air intake 100 disposed on the first side wall 11, wherein the vortex elimination mechanism 60 and the standby air intake 100 are located between the first air intake assembly 41 and the second air intake assembly 42; wherein, the vortex eliminating mechanism 60 and the standby air inlet 100 are sequentially arranged from top to bottom.
And a control unit for controlling the vortex eliminating mechanism 60 to operate so as to eliminate the vortex generated when the first air intake assembly 41 and the second air intake assembly 42 operate when the vortex detecting device detects the vortex.
In specific implementation, since the high-temperature smoke and dust exhaust system with the standby air inlet generates smoke and dust when in operation, in order to ensure the quality of workpieces, air flows are blown in from the first air inlet component 41 and the second air inlet component 42 which are arranged at the upper end and the lower end of the first side wall 11 and blown out from the air exhaust mechanism 50 which is arranged on the second side wall 12 of the forming bin 10 through the external purifier, so that the effect of removing the smoke and dust is achieved. In this embodiment, a vortex eliminating mechanism 60 connected with the purifier is disposed between the first air inlet assembly 41 and the second air inlet assembly 42, and when the vortex detecting device detects that a vortex is generated in the molding bin, the control unit controls the purifier to allow air to enter and exit from the vortex eliminating mechanism 60 to eliminate the vortex generated in the molding bin due to the operation of the first air inlet assembly 41 and the second air inlet assembly 42. The control unit is used for controlling the vortex eliminating mechanism 60 to work so as to eliminate the vortex generated when the first air inlet assembly 41 and the second air inlet assembly 42 work when the vortex detecting device detects that the vortex is smaller than a first set value. Further, when the vortex intensity is greater than or equal to the first set value, on one hand, the vortex eliminating mechanism 60 works to eliminate the vortex generated when the first air inlet assembly 41 and the second air inlet assembly 42 work, on the other hand, the air inlet volumes of the first air inlet assembly 41 and the second air inlet assembly 42 are controlled to form turbulence, so that the vortex can be eliminated at the fastest speed, and if the vortex generating range is larger, the vortex eliminating mechanism for equipment can be additionally arranged at the standby air inlet 100, so that the vortex in a large range is eliminated, the dust removing effect is improved, and the quality of the workpiece is further improved; when the standby air inlet 100 is not needed, the standby air inlet 100 is sealed by a sealing cover. Preferably, the air intake amounts of the first air intake assembly 41 and the second air intake assembly 42 may be switched, or the air intake amounts of the first air intake assembly 41 and the second air intake assembly 42 may be reduced at the same time. For example, the air volumes of the first air intake assembly 41 and the second air intake assembly 42 are a and B, respectively, and the air volumes of the first air intake assembly 41 and the second air intake assembly 42 are switched to reach B and a, respectively. In addition, in order not to affect the exhaust, the air intake of the first air intake assembly 41 and the second air intake assembly 42 is reduced by not more than 10% of the initial air intake. For example, the air intake of the first air intake assembly 41 and the second air intake assembly 42 is reduced to 0.9A and 0.9B.
According to the invention, a first air inlet assembly, a vortex eliminating mechanism and a second air inlet assembly are sequentially arranged on a first side wall of a forming bin from top to bottom, and an air exhaust mechanism is arranged on a second side wall opposite to the first side wall; the inside vortex detection device that is used for detecting its vortex that sets up in shaping storehouse, when vortex detection device detected the vortex, the control unit control vortex elimination mechanism work was in order to eliminate the vortex that first air inlet subassembly and second air inlet subassembly during operation produced to will blow off the smoke and dust at the middle part because of the vortex, prevent that the smoke and dust from dropping on the work piece, improve work piece quality.
Further, the vortex eliminating mechanism 60 includes a diffusion homogenizing pipe 61 disposed at one side of the molding bin 10, a connecting pipe 62 communicating with the diffusion homogenizing pipe 61, and a baffle 63 communicating with the diffusion homogenizing pipe 61 through a guide, wherein a control valve 64 is disposed on the connecting pipe 62, and a plurality of micropores 631 are disposed on the baffle 63. In this embodiment, during operation, air flow enters the purifier through the first air inlet component 41 and the second air inlet component 42, and the metal powder in the forming bin is blown to the air outlet of the air exhaust mechanism 50 on the forming bin, so as to achieve the effect of dust removal. The vortex eliminating mechanism 60 is composed of a diffusion homogenizing pipe 61, a connecting pipe 62, a guide member, a baffle 63, and a control valve 64. When the vortex detecting device detects that the vortex is generated in the molding bin, the air flow is conveyed to the vortex eliminating mechanism 60 through the purifier, and the size of the conveyed air flow can be controlled through the control valve 64; after the air flows sequentially pass through the air inlet connection port of the connecting pipe 62, the air outlet connection port of the connecting pipe 62, the guide piece and the baffle 63, the micro holes 631 on the baffle 63 reduce the air flow, generate breeze, eliminate vortex, blow out the metal powder which is retained due to the formation of vortex between the first air inlet assembly 41 and the second air inlet assembly 42, improve the dust removal effect, and further improve the product quality. Preferably, the first air inlet assembly 41 and the second air inlet assembly 42 are also provided with control valves, so that the air flow is conveniently controlled, and the operation is convenient.
Further, the openings of the diffusion homogenizing pipe 61 become gradually larger in the direction of the air flow, and the angle is in the range of 90 ° -150 °. In this embodiment, the openings of the diffusion homogenizing pipe 61 along the air flow direction are gradually enlarged, and the angle range of the openings is 90 ° -150 °; when the air flow enters the wider air duct, the wind speed is reduced, the wind force is diffused, and the vortex generated by the first air inlet assembly 41 and the second air inlet assembly 42 during operation is eliminated in a larger range. Preferably, the angle formed by the upper end, the lower end and/or the left end and the right end of the opening of the diffusion homogenizing pipe 61 is 120 degrees, so that vortex is eliminated.
Further, a splitter plate is arranged in the direction of the large opening end of the diffusion uniform pipe 61, and a plurality of layers of splitter cavities are arranged on the splitter plate. In this embodiment, the split cavity is formed by a plurality of groups of square holes, and a plurality of groups of square holes are arranged at equal intervals, so that the gas in the diffusion uniform pipe 61 can be effectively and smoothly transited, and the gas is uniformly blown out, so that the dust removal effect is further improved.
Further, the openings of the first air inlet assembly 41 and the second air inlet of the second air inlet assembly 42 are gradually smaller along the air flow direction, and the angle ranges from 90 degrees to 150 degrees.
Further, the opening area of the diffusion homogenizing pipe 61 is larger than the sum of the areas of the first air inlet and the second air inlet.
In specific implementation, the openings of the first air inlet assembly 41 and the second air inlet of the second air inlet assembly 42 along the air flow direction are gradually reduced, and the angle range of the openings is 90 ° -150 °; when the air flow enters a narrower air duct, the wind force is more concentrated, the pressure intensity is higher, the wind speed is faster, and the dust removal effect is better; the sum of the areas of the first air inlet and the second air inlet is smaller than the opening area of the diffusion homogenizing pipe 61, and the diffusion homogenizing pipe 61 is matched with the diffusion homogenizing pipe to form an air surface which is favorable for smoke dust exhaust, so that vortex formed between the first air inlet of the first air inlet assembly 41 and the second air inlet assembly 42 is removed conveniently, better dust removing effect is guaranteed, and workpiece quality is improved. Preferably, the angle between the upper and lower ends and/or the left and right ends of the opening of the first air intake assembly 41 and the opening of the second air intake assembly 42 is 120 °, so as to eliminate vortex.
Further, the high-temperature smoke and dust discharging system for the 3D printer with the standby air inlet further comprises a lifting mechanism 70 arranged at the bottom of the forming bin 10; the dust collecting mechanism 30 includes hopper-shaped dust leakage grooves 31 provided at the bottom of the molding bin 10 and located at both sides of the lifting mechanism 70, and a collecting box (not shown) connected to the dust leakage grooves.
Further, a sliding mechanism is arranged in the molding bin 10, and a scraper assembly 80 is slidably arranged on the sliding mechanism; the upper end of the molding bin 10 is provided with a powder outlet assembly 90. In this embodiment, when the high-temperature smoke dust discharging system for the 3D printer with the standby air inlet works, the powder discharging component 90 at the upper end of the molding bin 10 discharges powder, and the scraper component slides back and forth on the sliding mechanism to complete printing.
Further, the high-temperature smoke dust exhausting system for the 3D printer with the standby air inlet further comprises a purifier, and the first air inlet assembly 41, the second air inlet assembly 42, the vortex eliminating mechanism 60 and the air exhausting mechanism 50 are all connected with the purifier. In this embodiment, the first air intake assembly 41, the second air intake assembly 42, the vortex eliminating mechanism 60 and the air exhaust mechanism 50 are all connected with the purifier, so that the air intake and the air outlet of the high-temperature smoke exhaust system for the 3D printer with the standby air intake are completed by one purifier.
Further, an air outlet device is further arranged at the top of the molding bin 10, and the air outlet direction of the air outlet device is perpendicular to the air inlet direction of the vortex eliminating mechanism 60. In this embodiment, an air outlet device (not shown in the figure) is further disposed at the top of the molding bin 10, so as to blow the dust near the laser vibrating mirror 20 downward, and prevent the laser vibrating mirror 20 from being polluted; further improving the dust removal effect.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A high temperature fume exhaust system for a 3D printer having a backup air inlet, comprising:
the top of the molding bin (10) is provided with a plurality of groups of laser vibrating mirrors (20), and the bottom of the molding bin is provided with a dust collecting mechanism (30);
the vortex detection device is arranged in the forming bin (10);
the air supply mechanism (40) is arranged on the first side wall (11) of the forming bin (10) and comprises a first air inlet assembly (41) and a second air inlet assembly (42) which are arranged at the upper end and the lower end of the first side wall (11) in parallel;
an exhaust mechanism (50) arranged on a second side wall (12) of the molding bin (10), wherein the first side wall (11) and the second side wall (12) are oppositely arranged; and
a vortex elimination mechanism (60) and a standby air inlet (100) arranged on the first side wall (11), wherein the vortex elimination mechanism (60) and the standby air inlet (100) are positioned between the first air inlet assembly (41) and the second air inlet assembly (42);
the control unit is used for controlling the vortex eliminating mechanism (60) to work so as to eliminate the vortex generated when the first air inlet assembly (41) and the second air inlet assembly (42) work when the vortex detecting device detects the vortex;
the vortex eliminating mechanism (60) comprises a diffusion homogenizing pipe (61) arranged on one side of the forming bin (10), a connecting pipeline (62) communicated with the diffusion homogenizing pipe (61) and a baffle (63) communicated with the diffusion homogenizing pipe (61) through a guide piece, wherein a control valve (64) is arranged on the connecting pipeline (62), and a plurality of micropores (631) are formed in the baffle (63).
2. The high-temperature smoke evacuation system for 3D printer with standby air intake according to claim 1, wherein the opening of the diffusion homogenizing pipe (61) is gradually enlarged in the air flow direction, and the angle is in the range of 90 ° -150 °.
3. The high-temperature smoke exhaust system with the standby air inlet for the 3D printer according to claim 2, wherein a splitter plate is arranged in the direction of the large opening end of the diffusion homogenizing pipe (61), and a plurality of layers of splitter cavities are arranged on the splitter plate.
4. The high temperature fume exhaust system for 3D printer with spare air intake according to claim 2, wherein the openings of the first air intake assembly (41) and the second air intake of the second air intake assembly (42) become gradually smaller in the air flow direction, and the angle ranges from 90 ° to 150 °.
5. The high-temperature smoke evacuation system for a 3D printer having a spare air intake according to claim 4, wherein the opening area of the diffusion homogenizing pipe (61) is larger than the sum of the areas of the first air intake and the second air intake.
6. The high-temperature smoke evacuation system for a 3D printer having a standby air intake according to claim 5, further comprising a lifting mechanism (70) provided at the bottom of the molding bin (10); the dust collection mechanism (30) comprises funnel-shaped powder leakage grooves (31) which are arranged at the bottom of the forming bin (10) and are positioned at two sides of the lifting mechanism (70), and a collection box connected with the powder leakage grooves.
7. The high-temperature smoke exhaust system for the 3D printer with the standby air inlet according to claim 1, wherein a sliding mechanism is arranged in the forming bin (10), and a scraper component (80) is arranged on the sliding mechanism in a sliding manner; the upper end of the molding bin (10) is provided with a powder outlet component (90).
8. The high-temperature smoke evacuation system for a 3D printer having a standby air intake according to claim 1, further comprising a purifier, wherein the first air intake assembly (41), the second air intake assembly (42), the vortex eliminating mechanism (60) and the air exhausting mechanism (50) are all connected to the purifier.
9. The high-temperature smoke exhaust system with the standby air inlet for the 3D printer of claim 1, wherein an air outlet device is further arranged at the top of the molding bin (10), and the air outlet direction of the air outlet device is perpendicular to the air inlet direction of the vortex eliminating mechanism (60).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111005233.7A CN113695603B (en) | 2021-08-30 | 2021-08-30 | High-temperature smoke and dust exhaust system with standby air inlet for 3D printer |
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| CN202111005233.7A CN113695603B (en) | 2021-08-30 | 2021-08-30 | High-temperature smoke and dust exhaust system with standby air inlet for 3D printer |
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| CN113695603B true CN113695603B (en) | 2023-06-20 |
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| DE102014000022A1 (en) * | 2014-01-03 | 2015-07-09 | Cl Schutzrechtsverwaltungs Gmbh | Device for producing three-dimensional objects by successively solidifying layers |
| EP3219416A1 (en) * | 2016-03-16 | 2017-09-20 | Linde Aktiengesellschaft | Method and device for the generative production of a three-dimensional component |
| US11364564B2 (en) * | 2017-11-13 | 2022-06-21 | General Electric Company | Mobile large scale additive manufacturing using foil-based build materials |
| CN108422667B (en) * | 2018-05-09 | 2023-10-31 | 苏州倍丰智能科技有限公司 | Protective gas supply system |
| DE102018129022A1 (en) * | 2018-11-19 | 2020-05-20 | AMCM GmbH | Radial flow over a construction field |
| CN111515393A (en) * | 2020-05-09 | 2020-08-11 | 上海理工大学 | 3D printing apparatus with intelligence smoke and dust collection device |
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