CN108754493B - Powder feeding device for laser cladding capable of realizing gradient change of powder - Google Patents
Powder feeding device for laser cladding capable of realizing gradient change of powder Download PDFInfo
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- CN108754493B CN108754493B CN201810939829.6A CN201810939829A CN108754493B CN 108754493 B CN108754493 B CN 108754493B CN 201810939829 A CN201810939829 A CN 201810939829A CN 108754493 B CN108754493 B CN 108754493B
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- powder
- feeding device
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
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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
Abstract
The invention provides a powder feeding device capable of realizing gradient change of powder for laser cladding, which comprises a top end cover, a powder mixing bin, a powder storage bin base and a fixing seat, wherein the top end cover is provided with a plurality of powder feeding holes and is arranged at one end of the powder mixing bin; the bottom of the powder storage bin is communicated with the first powder inlet part; the bottom of first powder portion of intaking is provided with first screen cloth, is provided with miniature oscillator on the first screen cloth. The invention can solve the problems that the existing powder feeding is easy to cause the blockage of a powder feeding pipeline and a laser cladding head, the powder utilization rate is low, the real-time gradient change of various powders cannot be realized in the cladding process, and the like.
Description
[ field of technology ]
The invention relates to a powder feeding device for laser cladding, which can realize gradient change of powder.
[ background Art ]
The laser cladding technology belongs to one of surface modification technology, and is a fast solidification process, and through adding cladding material on the surface of the base material, alloy with different components and performances and the surface layer of the base material are fast melted by using high-energy-density laser beams. The synchronous powder feeding laser cladding technology is rapidly developed, the powder feeding device is used as the core of the synchronous powder feeding laser cladding technology, a certain defect still exists at present, most of composite materials in the market at present are manually proportioned outside a powder bin, the uniformity of proportioned powder is difficult to ensure, the production efficiency is reduced, and meanwhile, the real-time gradient change of various powders cannot be realized in the cladding process.
In the powder feeding device in the current market, powder is not effectively screened in the powder feeding process, so that a powder feeding pipeline and a laser cladding head are easily blocked by powder feeding, the production efficiency is reduced, the powder waste in a powder bin base is serious, and the powder utilization efficiency is low; and cladding defects are easily generated due to a small amount of impurities.
[ invention ]
The invention aims to solve the technical problems of low production efficiency, incapability of realizing real-time gradient change of various powders in the cladding process and the like, and can effectively improve cladding forming quality.
The invention is realized in the following way:
the utility model provides a powder device that send that can realize powder gradient change for laser cladding, send powder device includes top end cover, thoughtlessly whitewashed storehouse, stores up whitewashed storehouse base and fixing base, the top end cover sets up the one end in thoughtlessly whitewashed storehouse, it send the powder hole to set up plural on the top end cover, be provided with rotatory thoughtlessly whitewashed device in the thoughtlessly whitewashed storehouse, rotatory thoughtlessly whitewashed device links to each other with the motor through the top end cover, the motor sets up in the top end cover outside, store up whitewashed storehouse and connect the other end in thoughtlessly whitewashed storehouse, store up whitewashed storehouse base setting in Chu Fencang below;
the powder storage bin base is connected and arranged above the fixed seat, the powder storage bin base is provided with a first powder inlet part and a first powder outlet, the fixed seat is provided with a first powder disc and a second powder disc, the first powder disc is provided with a second powder inlet, the second powder disc is provided with a second powder outlet, the first powder disc and the second powder disc are communicated through a hollow tube, the first powder inlet part is communicated with the second powder inlet, and the first powder outlet is communicated with the second powder outlet; the bottom of the powder storage bin is communicated with the first powder inlet part;
the bottom of the first powder inlet part is provided with a first screen, and the first screen is provided with a micro-oscillator.
Further, the rotary powder mixing device comprises a rotary rod, the rotary rod is connected with the motor, three circles of rotary blade groups are arranged on the rotary rod, each rotary blade group comprises a plurality of rotary blade monomers, and each rotary blade monomer is obliquely fixed on the rotary rod; the rotary blade monomers of the adjacent rotary blade groups are staggered.
Further, the shape of the first powder inlet part is a cone with big top and small bottom.
Further, a second screen is arranged on the second powder inlet of the first powder disk.
Further, the powder feeding device is matched with a plurality of powder bins for use, each powder bin is communicated with the powder feeding hole of the top end cover through a powder feeding pipeline, and each powder bin is connected with the gas feeding device.
The invention has the following advantages:
a first screen is arranged in the powder storage bin, and the first screen can screen out very few impurities in the powder, so that the impurities are prevented from entering a molten pool to influence the cladding quality; the micro-oscillator can effectively solve the problem of 'powder agglomeration' in powder, and can solve the problem that the powder blocks a pipeline and even blocks a laser cladding head from the source; the two powder trays are connected through the hollow pipe, and the remained powder in the pipeline can be poured out for reuse, so that the powder utilization efficiency is greatly improved.
In addition, the rotating blade monomers of the adjacent rotating blade groups are staggered, so that uniform mixing of various powders is effectively realized, the uniformity degree of the powders is improved, the quality of the cladding layer is determined by the uniformity degree of the powders, and the quality of the cladding layer is effectively improved; in addition, the amount of various powder entering each powder feeding hole can be regulated by regulating the air flow of an external air supply device of the powder bin where each powder is located, so that gradient change of various powder in the cladding process is realized.
A second screen is arranged on the second powder inlet of the first powder disk, and the second screen can screen and accord with the particle size of powder, so that the cladding forming quality can be effectively improved.
[ description of the drawings ]
The invention will be further described with reference to examples of embodiments with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the rotary powder mixing device of the present invention mated with a motor and top end cap.
Fig. 3 is a schematic view of the base structure of the powder storage bin of the invention.
Fig. 4 is a schematic view of the internal structure of the fixing base of the present invention.
Figure number:
1. top end cap 2, powder mixing bin 3, powder storage bin 4, powder storage bin base 5, fixing seat 11, powder feeding hole 12, motor 21, rotary powder mixing device 41, first powder feeding part 42, first powder outlet hole 51, first powder disk 52, second powder disk 53, hollow tube 211, rotary rod 212, rotary blade group 411, first screen 412, micro-oscillator 511, second powder feeding hole 512, second screen 521, second powder outlet hole 2121, rotary blade single body
[ detailed description ] of the invention
Referring to fig. 1 to 4, the invention relates to a powder feeding device for laser cladding, which can realize gradient change of powder, wherein the powder feeding device 100 comprises a top end cover 1, a powder mixing bin 2, a powder storage bin 3, a powder storage bin base 4 and a fixing seat 5, the top end cover 1 is arranged at the top end of the powder mixing bin 2, a plurality of powder feeding holes 11 are formed in the top end cover 1, a rotary powder mixing device 21 is arranged in the powder mixing bin 2, the rotary powder mixing device 21 is connected with a motor 12 through the top end cover 11, the motor 12 is arranged at the outer side of the top end cover 1, the powder storage bin 3 is connected with the other end of the powder mixing bin 2, and the powder storage bin base 4 is arranged below Chu Fencang;
the powder storage bin base 4 is arranged above the fixed seat 5 in a connecting way, the powder storage bin base 4 is provided with a first powder inlet part 41 and a first powder outlet hole 42, the fixed seat 5 is provided with a first powder disc 51 and a second powder disc 52, the first powder disc 51 is provided with a second powder inlet hole 511, the second powder disc 52 is provided with a second powder outlet hole 521, the first powder disc 51 and the second powder disc 52 are communicated through a hollow pipe 53, the first powder inlet part 41 is communicated with the second powder inlet hole 511, and the first powder outlet hole 42 is communicated with the second powder outlet hole 521; the bottom of the powder storage bin 3 is communicated with the first powder inlet part 41.
The rotary powder mixing device 21 comprises a rotary rod 211, the rotary rod 211 is connected with the motor 12, three circles of rotary blade groups 212 are arranged on the rotary rod 211, each rotary blade group 212 comprises a plurality of rotary blade monomers 2121, and each rotary blade monomer 2121 is obliquely fixed on the rotary rod 211; the rotary vane units 2121 of the adjacent rotary vane groups 212 are arranged in a staggered manner.
The first powder inlet portion 41 has a tapered shape with a large upper part and a small lower part.
The bottom of the first powder inlet portion 41 is provided with a first screen 411.
The first screen 411 is provided with a micro-oscillator 412.
A second screen 512 is disposed on the second powder inlet 511 of the first powder disk 51.
The powder feeding device 100 is also matched with a plurality of powder bins, each powder bin is communicated with the powder feeding hole 11 of the top end cover 1 through a powder feeding pipeline, and each powder bin is connected with an air feeding device.
The working principle of the invention is as follows:
firstly, a powder inlet pipeline connected with an external powder bin is fed into a powder mixing bin 2 through a powder feeding hole 11 positioned on a top end cover, different powder in a plurality of powder bins is simultaneously fed into the powder mixing bin 2 under the air feeding effect of an external air feeding device, meanwhile, under the effect of a motor 12, a rotary powder mixing device 21 positioned in the powder mixing bin 2 is driven to rotate, and in the rotating process of the rotary powder mixing device 21, when a rotary blade monomer 2121 of each layer of rotary blade group 212 rotates, the position of the rotary blade monomer 2121 of an adjacent layer is staggered, so that uniform mixing of various powder is effectively realized, the homogenization degree of the powder is improved, the quality of a cladding layer is determined by the homogenization degree of the powder, and therefore, the quality of the cladding layer is effectively improved; in addition, the amount of the various powders entering the powder feeding holes 11 can be regulated by regulating the air flow of the external air feeding device of the powder bin where each powder is positioned, so as to realize gradient change of the various powders in the cladding process.
The mixed powder in the powder mixing bin 2 falls into the first screen 411 of the first powder inlet part 41 in the powder storage bin base 4 through the powder storage bin 3, and the powder is screened for the first time, so that few impurities in the powder can be effectively screened, and the purity of the powder is improved. Meanwhile, the micro-oscillator 412 located on the first screen 411 oscillates, so that the problem of "powder lump" in the powder can be effectively solved under the action of the oscillating force. The first screen 411 is used for screening impurities and the vibration is used for solving the problem of 'powder agglomeration', so that the problem that powder blocks a pipeline and even blocks a laser cladding head from the source can be solved.
The powder screened by the first screen 411 enters the first powder disc 51 on the fixed base 5 through the second powder inlet 511, the second screen 512 is arranged on the second powder inlet 511, the second screen 512 is different from the first screen 411, the second screen 512 screens the particle size of the powder, screens the particle size of the powder meeting the laser cladding, and the second screen with different screening particle sizes is replaced for the powder with different required particle sizes. Aiming at the fact that the particle size of the few powder does not accord with the particle size of the cladding powder, two screens can be cleaned after powder feeding is carried out for a period of time.
The powder screened by the second screen 512 flows from the first powder tray 51 to the second powder tray 52 through the hollow tube 53 under the action of the air supply, and no powder flows on the side where the hollow tube 53 is not added, i.e. no excessive powder exists in the groove of the fixing seat 5. The powder moving to the position of the second powder disk 52 is blown out to the position of the first powder outlet 42 through the second powder outlet 521 on the second powder disk 52, and the first powder outlet 42 is connected with a laser cladding powder feeding pipeline, so that the whole laser cladding powder feeding process is completed. Traditional send powder to spread full fixing base recess, after laser cladding process is finished, the powder in the recess mostly can not retrieve the reutilization, and connects two powder dishes through the hollow tube, can dismantle the hollow tube 53 after the laser cladding is finished and pour out the inside powder of pipeline, realizes the reutilization of powder, has improved powder utilization efficiency greatly.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the invention, and that equivalent modifications and variations of the invention in light of the spirit of the invention will be covered by the claims of the present invention.
Claims (5)
1. A send powder device that is used for laser cladding can realize powder gradient change, its characterized in that: the powder feeding device comprises a top end cover, a powder mixing bin, a powder storage bin base and a fixed seat, wherein the top end cover is arranged at one end of the powder mixing bin, a plurality of powder feeding holes are formed in the top end cover, a rotary powder mixing device is arranged in the powder mixing bin and is connected with a motor through the top end cover, the motor is arranged on the outer side of the top end cover, the powder storage bin is connected to the other end of the powder mixing bin, and the powder storage bin base is arranged below Chu Fencang;
the powder storage bin base is connected and arranged above the fixed seat, the powder storage bin base is provided with a first powder inlet part and a first powder outlet, the fixed seat is provided with a first powder disc and a second powder disc, the first powder disc is provided with a second powder inlet, the second powder disc is provided with a second powder outlet, the first powder disc and the second powder disc are communicated through a hollow tube, the first powder inlet part is communicated with the second powder inlet, and the first powder outlet is communicated with the second powder outlet; the bottom of the powder storage bin is communicated with the first powder inlet part;
the bottom of the first powder inlet part is provided with a first screen, and the first screen is provided with a micro-oscillator.
2. The powder feeding device capable of realizing gradient change of powder for laser cladding according to claim 1, wherein the powder feeding device is characterized in that: the rotary powder mixing device comprises a rotary rod, the rotary rod is connected with a motor, three circles of rotary blade groups are arranged on the rotary rod, each rotary blade group comprises a plurality of rotary blade monomers, and each rotary blade monomer is obliquely fixed on the rotary rod; the rotary blade monomers of the adjacent rotary blade groups are staggered.
3. The powder feeding device capable of realizing gradient change of powder for laser cladding according to claim 1, wherein the powder feeding device is characterized in that: the shape of the first powder inlet part is a cone with big top and small bottom.
4. The powder feeding device capable of realizing gradient change of powder for laser cladding according to claim 1, wherein the powder feeding device is characterized in that: a second screen is arranged on the second powder inlet of the first powder disk.
5. The powder feeding device capable of realizing gradient change of powder for laser cladding according to claim 1, wherein the powder feeding device is characterized in that: the powder feeding device is also matched with a plurality of powder bins, each powder bin is communicated with the powder feeding hole of the top end cover through a powder feeding pipeline, and each powder bin is connected with the gas feeding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810939829.6A CN108754493B (en) | 2018-08-17 | 2018-08-17 | Powder feeding device for laser cladding capable of realizing gradient change of powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810939829.6A CN108754493B (en) | 2018-08-17 | 2018-08-17 | Powder feeding device for laser cladding capable of realizing gradient change of powder |
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| CN108754493A CN108754493A (en) | 2018-11-06 |
| CN108754493B true CN108754493B (en) | 2023-06-20 |
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| CN201810939829.6A Active CN108754493B (en) | 2018-08-17 | 2018-08-17 | Powder feeding device for laser cladding capable of realizing gradient change of powder |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110923704A (en) * | 2019-12-17 | 2020-03-27 | 芜湖舍达激光科技有限公司 | High-speed laser cladding head for copper plate laser cladding |
| CN113060558B (en) * | 2021-03-30 | 2021-11-02 | 中国医学科学院阜外医院 | Glove powdering device |
| CN114950936B (en) * | 2022-04-22 | 2023-06-23 | 南通德邦新材料科技有限公司 | Recovery device for laser cladding alloy powder |
| CN114932238B (en) * | 2022-06-15 | 2024-03-26 | 昆明理工大学 | Powder feeding device and powder feeding method for multi-material additive manufacturing |
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| EP1203620A1 (en) * | 2000-11-06 | 2002-05-08 | The Swatch Group Management Services AG | Powder feeding apparatus with vibratory screen and adjustable flow |
| CN103482367A (en) * | 2013-07-05 | 2014-01-01 | 北京工业大学 | Multi-component powder component real-time variable powder feeding system |
| CN105478768A (en) * | 2016-01-06 | 2016-04-13 | 福建工程学院 | 3D printing die laser cladding equipment and gradation process |
| CN106702379A (en) * | 2017-01-26 | 2017-05-24 | 常熟建华模具科技股份有限公司 | Positive pressure type powder feeding device for laser cladding welding |
| CN106987837A (en) * | 2017-03-16 | 2017-07-28 | 常州大学 | A kind of laser spraying dust feeder |
| CN108097956A (en) * | 2018-02-05 | 2018-06-01 | 温州大学激光与光电智能制造研究院 | Large complicated gradient function component laser direct writing powder mixture ratio dynamic dust feeder and process equipment |
| CN208917309U (en) * | 2018-08-17 | 2019-05-31 | 福建工程学院 | A kind of dust feeder for realizing laser cladding of material change of gradient |
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2018
- 2018-08-17 CN CN201810939829.6A patent/CN108754493B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1203620A1 (en) * | 2000-11-06 | 2002-05-08 | The Swatch Group Management Services AG | Powder feeding apparatus with vibratory screen and adjustable flow |
| CN103482367A (en) * | 2013-07-05 | 2014-01-01 | 北京工业大学 | Multi-component powder component real-time variable powder feeding system |
| CN105478768A (en) * | 2016-01-06 | 2016-04-13 | 福建工程学院 | 3D printing die laser cladding equipment and gradation process |
| CN106702379A (en) * | 2017-01-26 | 2017-05-24 | 常熟建华模具科技股份有限公司 | Positive pressure type powder feeding device for laser cladding welding |
| CN106987837A (en) * | 2017-03-16 | 2017-07-28 | 常州大学 | A kind of laser spraying dust feeder |
| CN108097956A (en) * | 2018-02-05 | 2018-06-01 | 温州大学激光与光电智能制造研究院 | Large complicated gradient function component laser direct writing powder mixture ratio dynamic dust feeder and process equipment |
| CN208917309U (en) * | 2018-08-17 | 2019-05-31 | 福建工程学院 | A kind of dust feeder for realizing laser cladding of material change of gradient |
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