CN110947962A - Smoke and dust filter equipment for 3D metal printer - Google Patents

Smoke and dust filter equipment for 3D metal printer Download PDF

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Publication number
CN110947962A
CN110947962A CN201911278204.0A CN201911278204A CN110947962A CN 110947962 A CN110947962 A CN 110947962A CN 201911278204 A CN201911278204 A CN 201911278204A CN 110947962 A CN110947962 A CN 110947962A
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CN
China
Prior art keywords
filter screen
pipe
purifying box
air supply
smoke
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911278204.0A
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Chinese (zh)
Inventor
亢红军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Keyuan 3d Technology Co ltd
Original Assignee
Anhui Keyuan 3d Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Keyuan 3d Technology Co ltd filed Critical Anhui Keyuan 3d Technology Co ltd
Priority to CN201911278204.0A priority Critical patent/CN110947962A/en
Publication of CN110947962A publication Critical patent/CN110947962A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00Apparatus 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
    • B22F12/70Gas flow means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42Auxiliary equipment or operation thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE 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
    • B33Y40/00Auxiliary operations or equipment, e.g. for material handling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/10Formation of a green body
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20Direct sintering or melting
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention discloses a smoke dust filtering device for a 3D metal printer, which comprises a printer body and a purifying box, wherein the purifying box is arranged on one side of the printer body, a printing bin is arranged in the printer body, a fixing plate is welded on one side of the printer body, a suction fan is arranged on the upper surface of the fixing plate, an input pipe is arranged on one side of the bottom of the suction fan, the other end of the input pipe is communicated with the bottom of the printing bin, an output pipe is arranged above the suction fan, an air supply pipe is communicated with the top of the printer body, a first connecting pipe is communicated with one side of the top of the purifying box, and the first connecting pipe and the air supply pipe are fixedly connected through a flange. According to the invention, the first filter screen and the second filter screen are arranged, the gas is subjected to coarse filtration through the second filter screen, then the first filter screen is utilized for fine filtration, and the gas is subjected to two times of filtration, so that the filtering sufficiency is improved, and the filtration is more sufficient.

Description

Smoke and dust filter equipment for 3D metal printer
Technical Field
The invention belongs to the technical field of 3D metal printers, and particularly relates to a smoke dust filtering device for a 3D metal printer.
Background
3D prints and is the hot spot that the prior art was used, because 3D prints to the increment manufacturing process, consequently can greatly reduce the waste of raw materials especially rare material to 3D prints and can also directly print out general go to measure characteristics and the product that processing can't make, for example closed inner chamber, crooked inner chamber pipeline etc.. 3D printing, also known as three-dimensional printing, is one of rapid prototyping technologies, utilizes bondable materials such as powdered metal or plastics, constructs parts through a multi-layer printing mode of one layer after another, and the technology is used for die manufacturing, industrial design and even product manufacturing, and some high-value applications have already appeared through printed parts.
Present 3D is smoke and dust filter equipment for metal printer still has some problems: the gas is not filtered for many times, the filtering effect is poor, and meanwhile, after the filter screen is used for a long time, the filter screen can adsorb large smoke dust, and if the filter screen cannot be cleaned in time, blockage can be caused.
Disclosure of Invention
The invention aims to provide a smoke dust filtering device for a 3D metal printer, which is characterized in that a first filter screen and a second filter screen are arranged, gas is coarsely filtered through the second filter screen, then the first filter screen is used for finely filtering, and the gas is filtered twice, so that the filtering sufficiency is improved, the filtering is more sufficient, a clamping plate can be taken out of a groove by screwing a second fastening bolt out of a purifying box, then the second filter screen can be taken out of a slot, the second filter screen is convenient to clean and replace.
In order to achieve the purpose, the invention adopts the following technical scheme:
a smoke and dust filtering device for a 3D metal printer comprises a printer body and a purifying box, wherein the purifying box is arranged on one side of the printer body, a printing bin is arranged in the printer body, a fixing plate is welded on one side of the printer body, a suction fan is arranged on the upper surface of the fixing plate, an input pipe is arranged on one side of the bottom of the suction fan, the other end of the input pipe is communicated with the bottom of the printing bin, an output pipe is arranged above the suction fan, an air supply pipe is communicated with the top of the printer body, a first connecting pipe is communicated with one side of the top of the purifying box, the first connecting pipe and the air supply pipe are fixedly connected through a flange, a fixing rod is welded on one side of the purifying box, a positioning block is welded at the bottom of the fixing rod, and the positioning block is fixedly arranged on the side wall of the, the bottom of the purification box is communicated with a second connecting pipe, the interior of the second connecting pipe is in threaded connection with an air guide pipe, the bottom end of the air guide pipe is in threaded connection with an output pipe, the interior of the purification box is provided with a first air supply groove and a second air supply groove, one end of the first air supply groove is communicated with one end of the second air supply groove, the other end of the first connecting pipe is communicated with the other end of the first air supply groove, the other end of the second connecting pipe is communicated with the other end of the second air supply groove, a first filter screen is arranged in the first air supply groove, a second filter screen is arranged in the second air supply groove, a slot is arranged on the outer side of the second filter screen, the slot is arranged in the purification box, the outer surface of the purification box is provided with a groove, a clamping plate is inserted in the groove, and second fastening bolts are in threaded connection with the two sides of the clamping plate, the other end of the second fastening bolt is in threaded connection with the inside of the purifying box, a clamping groove is formed in the inner side of the clamping plate and is formed in the middle of the clamping plate, and one end of the second filter screen is clamped in the clamping groove.
Preferably, the lower surface of the fixing plate is provided with a supporting rod, and the other end of the supporting rod is welded on the surface of the printer body.
Preferably, the dead lever is provided with two sets, and two sets of dead lever all set up the lower half at the purifying box.
Preferably, the outer side of the air guide tube is welded with two force applying rods, and the two force applying rods are symmetrically welded on two sides of the air guide tube.
Preferably, the outer thread is seted up in the bottom outside of air duct, the internal thread has all been seted up to the top inboard of output tube and the bottom inboard of second connecting pipe, the air duct passes through the external thread and the internal thread respectively with output tube and second connecting pipe threaded connection.
Preferably, a rubber sealing ring is arranged between the slot and the second filter screen and fixedly bonded on the inner wall of the slot.
Preferably, a counter bore is formed in the upper surface of the clamping plate, and the end of the second fastening bolt is arranged in the counter bore.
Preferably, the first filter screen is mounted in the same manner as the second filter screen.
The invention has the technical effects and advantages that: compared with the prior art, the smoke dust filtering device for the 3D metal printer has the following advantages:
1. according to the invention, the first filter screen and the second filter screen are arranged, the gas is subjected to coarse filtration through the second filter screen, then the first filter screen is utilized for fine filtration, and the gas is subjected to two times of filtration, so that the filtering sufficiency is improved, and the filtration is more sufficient.
2. According to the invention, the clamping plate can be taken out from the groove by screwing the second fastening bolt out of the purifying box, and then the second filter screen can be taken out from the slot, so that the second filter screen is convenient to clean and replace.
3. According to the invention, the flange is detached from the first connecting pipe, then the air guide pipe is rotated, the bottom of the air guide pipe is screwed out from the top of the output pipe, and then the first fastening bolt is taken out from the positioning block, so that the purification box is convenient to detach.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the invention at A in FIG. 1;
FIG. 3 is an internal cross-sectional view of the purification tank of FIG. 1 in accordance with the present invention;
FIG. 4 is an enlarged view of the invention at B in FIG. 3;
FIG. 5 is a cross-sectional view of the connection between the airway tube and the second connector tube of FIG. 1 according to the present invention.
In the figure: 1. a printer body; 2. a purification box; 3. a printing bin; 4. a fixing plate; 5. a suction fan; 6. an input tube; 7. an output pipe; 8. an air supply pipe; 9. a first connecting pipe; 10. a flange; 11. fixing the rod; 12. positioning blocks; 13. a first fastening bolt; 14. a second connecting pipe; 15. an air duct; 16. a first gas supply tank; 17. a second gas supply tank; 18. a first filter screen; 19. a second filter screen; 20. a slot; 21. a groove; 22. clamping a plate; 23. a second fastening bolt; 24. a card slot; 25. a strut; 26. a force application rod; 27. an external thread; 28. an internal thread; 29. a rubber seal ring; 30. a counterbore.
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. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. 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 provides a smoke dust filtering device for a 3D metal printer as shown in figures 1-5, which comprises a printer body 1 and a purifying box 2, wherein the purifying box 2 is arranged at one side of the printer body 1, a printing bin 3 is arranged inside the printer body 1, a fixing plate 4 is welded at one side of the printer body 1, in order to increase the stability of the fixing plate 4, a supporting rod 25 is arranged at the lower surface of the fixing plate 4, the other end of the supporting rod 25 is welded on the surface of the printer body 1, a suction fan 5 is arranged on the upper surface of the fixing plate 4, the suction fan 5 can suck gas with smoke dust in the printing bin 3 into the purifying box 2, the gas is discharged into the printing bin 3 again from a gas supply pipe 8 after purification, so that gas circulation is realized, an input pipe 6 is arranged at one side of the bottom of the suction fan 5, and the other end of the input pipe 6, an output pipe 7 is arranged above the suction fan 5;
the top of the printer body 1 is provided with an air supply pipe 8 in a communicating mode, one side of the top of the purification box 2 is provided with a first connecting pipe 9 in a communicating mode, the first connecting pipe 9 and the air supply pipe 8 are fixedly connected through a flange 10, one side of the purification box 2 is welded with two fixing rods 11, in order to increase the stability of the purification box 2, the fixing rods 11 are provided with two groups, the two groups of fixing rods 11 are arranged on the lower half portion of the purification box 2, the bottom of each fixing rod 11 is welded with a positioning block 12, and the positioning block 12 is fixedly arranged on the side wall of the printer;
the bottom of the purification box 2 is provided with a second connecting pipe 14 in a communicating manner, the inside of the second connecting pipe 14 is in threaded connection with an air guide pipe 15, in order to facilitate the rotation of the air guide pipe 15, the outer side of the air guide pipe 15 is welded with two force applying rods 26, the two force applying rods 26 are symmetrically welded on two sides of the air guide pipe 15, the bottom end of the air guide pipe 15 is in threaded connection with an output pipe 7, the outer side of the bottom of the air guide pipe 15 is provided with an external thread 27, the inner side of the top of the output pipe 7 and the inner side of the bottom of the second connecting pipe 14 are both provided with an internal thread 28, and the air guide;
a first air supply groove 16 and a second air supply groove 17 are formed in the purifying box 2, one end of the first air supply groove 16 is communicated with one end of the second air supply groove 17, the other end of the first connecting pipe 9 is communicated with the other end of the first air supply groove 16, the other end of the second connecting pipe 14 is communicated with the other end of the second air supply groove 17, a first filter screen 18 is arranged in the first air supply groove 16, and a second filter screen 19 is arranged in the second air supply groove 17;
the outer side of the second filter screen 19 is provided with a slot 20, in order to seal the joint of the second filter screen 19 and the slot 20, a rubber seal ring 29 is arranged between the slot 20 and the second filter screen 19, the rubber seal ring 29 is fixedly bonded on the inner wall of the slot 20, the slot 20 is arranged inside the purifying box 2, the outer surface of the purifying box 2 is provided with a groove 21, the inside of the groove 21 is inserted with a clamping plate 22, two sides of the clamping plate 22 are in threaded connection with second fastening bolts 23, the other end of each second fastening bolt 23 is in threaded connection with the purifying box 2, the upper surface of the clamping plate 22 is provided with a counter bore 30, the end part of each second fastening bolt 23 is arranged in the counter bore 30, the end part of each second fastening bolt 23 can be prevented from being exposed, the inner side of the clamping plate 22 is provided with a clamping groove 24, the clamping groove 24 is arranged in the, the first filter 18 is mounted in the same manner as the second filter 19.
The structure principle is as follows: according to the invention, the first filter screen 18 and the second filter screen 19 are arranged, the gas is roughly filtered through the second filter screen 19, then the first filter screen 18 is used for fine filtering, and the gas is filtered twice, so that the filtering sufficiency is improved, and the filtering is more sufficient; by screwing the second fastening bolt 23 out of the purifying box 2, the clamping plate 22 can be taken out of the groove 21, and then the second filter screen 19 can be taken out of the slot, so that the second filter screen 19 is convenient to clean and replace; through dismantling flange 10 from first connecting pipe 9, then rotate air duct 15, unscrew the bottom of air duct 15 from the top of output tube 7, then first fastening bolt 13 takes out from locating piece 12 to conveniently dismantle purifying box 2.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (8)

1. The utility model provides a 3D is smoke and dust filter equipment for metal printer, includes printer body (1) and purifying box (2), its characterized in that: the printer comprises a printer body (1), a printing bin (3) is arranged inside the printer body (1), a fixing plate (4) is welded on one side of the printer body (1), a suction fan (5) is mounted on the upper surface of the fixing plate (4), an input pipe (6) is arranged on one side of the bottom of the suction fan (5), the other end of the input pipe (6) is communicated with the bottom of the printing bin (3), an output pipe (7) is arranged above the suction fan (5), an air supply pipe (8) is communicated with the top of the printer body (1), a first connecting pipe (9) is communicated with one side of the top of the purifying box (2), the first connecting pipe (9) and the air supply pipe (8) are fixedly connected through a flange (10), and a fixing rod (11) is welded on one side of the purifying box (2), the bottom of the fixed rod (11) is welded with a positioning block (12), the positioning block (12) is fixedly arranged on the side wall of the printer body (1) through a first fastening bolt (13), the bottom of the purifying box (2) is communicated with a second connecting pipe (14), the inner thread of the second connecting pipe (14) is connected with an air duct (15), the bottom end of the air duct (15) is in threaded connection with the output pipe (7), a first air supply groove (16) and a second air supply groove (17) are formed in the purifying box (2), one end of the first air supply groove (16) is communicated with one end of the second air supply groove (17), the other end of the first connecting pipe (9) is communicated with the other end of the first air supply groove (16), the other end of the second connecting pipe (14) is communicated with the other end of the second air supply groove (17), be provided with first filter screen (18) in first air feed groove (16), be provided with second filter screen (19) in second air feed groove (17), the outside of second filter screen (19) is provided with slot (20), the inside at purifying box (2) is seted up in slot (20), the surface of purifying box (2) is seted up flutedly (21), the inside grafting of recess (21) has cardboard (22), the both sides threaded connection of cardboard (22) has second fastening bolt (23), the other end threaded connection of second fastening bolt (23) is in purifying box (2), draw-in groove (24) have been seted up to the inboard of cardboard (22), draw-in groove (24) are seted up the intermediate position at cardboard (22), the one end joint of second filter screen (19) is in draw-in groove (24).
2. The smoke and dust filtering device for the 3D metal printer according to claim 1, wherein: the lower surface mounting of fixed plate (4) has branch (25), the other end welding of branch (25) is on the surface of printer body (1).
3. The smoke and dust filtering device for the 3D metal printer according to claim 1, wherein: the fixed rods (11) are arranged in two groups, and the fixed rods (11) are arranged on the lower half part of the purifying box (2).
4. The smoke and dust filtering device for the 3D metal printer according to claim 1, wherein: two force applying rods (26) are welded on the outer side of the air guide pipe (15), and the two force applying rods (26) are symmetrically welded on two sides of the air guide pipe (15).
5. The smoke and dust filtering device for the 3D metal printer according to claim 1, wherein: external screw thread (27) have been seted up in the bottom outside of air duct (15), internal thread (28) have all been seted up to the top inboard of output tube (7) and the bottom inboard of second connecting pipe (14), air duct (15) pass through external screw thread (27) and internal thread (28) respectively with output tube (7) and second connecting pipe (14) threaded connection.
6. The smoke and dust filtering device for the 3D metal printer according to claim 1, wherein: a rubber sealing ring (29) is arranged between the slot (20) and the second filter screen (19), and the rubber sealing ring (29) is fixedly bonded on the inner wall of the slot (20).
7. The smoke and dust filtering device for the 3D metal printer according to claim 1, wherein: a counter bore (30) is formed in the upper surface of the clamping plate (22), and the end portion of the second fastening bolt (23) is arranged in the counter bore (30).
8. The smoke and dust filtering device for the 3D metal printer according to claim 1, wherein: the first filter screen (18) is installed in the same way as the second filter screen (19).
CN201911278204.0A 2019-12-13 2019-12-13 Smoke and dust filter equipment for 3D metal printer Pending CN110947962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911278204.0A CN110947962A (en) 2019-12-13 2019-12-13 Smoke and dust filter equipment for 3D metal printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911278204.0A CN110947962A (en) 2019-12-13 2019-12-13 Smoke and dust filter equipment for 3D metal printer

Publications (1)

Publication Number Publication Date
CN110947962A true CN110947962A (en) 2020-04-03

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Application Number Title Priority Date Filing Date
CN201911278204.0A Pending CN110947962A (en) 2019-12-13 2019-12-13 Smoke and dust filter equipment for 3D metal printer

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114534396A (en) * 2022-02-23 2022-05-27 康硕(山西)智能制造有限公司 Air filtering device for 3D printer

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Publication number Priority date Publication date Assignee Title
CN105749689A (en) * 2016-05-22 2016-07-13 韶关学院 Dust filtering device used for 3D printing of selective laser melting and use method
CN107000060A (en) * 2014-11-24 2017-08-01 通快喜丝玛有限责任公司 Gas flowing in increasing material manufacturing device
CN107192113A (en) * 2017-04-27 2017-09-22 舒尔环保科技(合肥)有限公司 A kind of airstrainer and its filter screen bracket
EP3290134A1 (en) * 2016-09-01 2018-03-07 Linde Aktiengesellschaft Method for additive manufacturing
CN207255247U (en) * 2017-08-10 2018-04-20 广东汉邦激光科技有限公司 A kind of 3D printing devices
CN107972267A (en) * 2017-09-26 2018-05-01 芜湖天梦信息科技有限公司 A kind of purifier of 3D printer
CN208343081U (en) * 2018-06-29 2019-01-08 将乐县佳丰木业有限公司 A kind of timber cutting sawdust classified collection device
US20190143410A1 (en) * 2017-11-16 2019-05-16 Sodick Co., Ltd. Laminate molding apparatus
CN109848416A (en) * 2019-04-12 2019-06-07 上海应用技术大学 A kind of filtrating smoke dust and powder recovering device of metal precinct laser fusion

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107000060A (en) * 2014-11-24 2017-08-01 通快喜丝玛有限责任公司 Gas flowing in increasing material manufacturing device
CN105749689A (en) * 2016-05-22 2016-07-13 韶关学院 Dust filtering device used for 3D printing of selective laser melting and use method
EP3290134A1 (en) * 2016-09-01 2018-03-07 Linde Aktiengesellschaft Method for additive manufacturing
CN107192113A (en) * 2017-04-27 2017-09-22 舒尔环保科技(合肥)有限公司 A kind of airstrainer and its filter screen bracket
CN207255247U (en) * 2017-08-10 2018-04-20 广东汉邦激光科技有限公司 A kind of 3D printing devices
CN107972267A (en) * 2017-09-26 2018-05-01 芜湖天梦信息科技有限公司 A kind of purifier of 3D printer
US20190143410A1 (en) * 2017-11-16 2019-05-16 Sodick Co., Ltd. Laminate molding apparatus
CN208343081U (en) * 2018-06-29 2019-01-08 将乐县佳丰木业有限公司 A kind of timber cutting sawdust classified collection device
CN109848416A (en) * 2019-04-12 2019-06-07 上海应用技术大学 A kind of filtrating smoke dust and powder recovering device of metal precinct laser fusion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114534396A (en) * 2022-02-23 2022-05-27 康硕(山西)智能制造有限公司 Air filtering device for 3D printer

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Application publication date: 20200403