CN115323369A - Laser cladding powder feeder with powder distribution function - Google Patents
Laser cladding powder feeder with powder distribution function Download PDFInfo
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- CN115323369A CN115323369A CN202210969639.5A CN202210969639A CN115323369A CN 115323369 A CN115323369 A CN 115323369A CN 202210969639 A CN202210969639 A CN 202210969639A CN 115323369 A CN115323369 A CN 115323369A
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- 239000000843 powder Substances 0.000 title claims abstract description 350
- 238000004372 laser cladding Methods 0.000 title claims abstract description 58
- 238000005315 distribution function Methods 0.000 title claims description 11
- 238000002156 mixing Methods 0.000 claims abstract description 82
- 239000002994 raw material Substances 0.000 claims abstract description 79
- 238000007789 sealing Methods 0.000 claims abstract description 56
- 238000002360 preparation method Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000000498 cooling water Substances 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 18
- 238000004364 calculation method Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000005253 cladding Methods 0.000 abstract description 24
- 238000000576 coating method Methods 0.000 abstract description 9
- 238000012546 transfer Methods 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 description 8
- 210000001503 joint Anatomy 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000011812 mixed powder Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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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
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laser Beam Processing (AREA)
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Abstract
The invention relates to a laser cladding powder feeder with a powder preparation function and a use method thereof, belonging to the technical field of laser cladding, and comprising a powder feeder box body, a mixing barrel, a laser cladding head, a powder splitter, a raw material barrel and sealing shells, wherein each sealing shell is inserted at the top end of the powder feeder box body in a sliding and sealing manner, the mixing barrel and the raw material barrel are respectively inserted with each sealing shell in a detachable and sealing manner, and powder is conveyed between each raw material barrel and the mixing barrel and between the mixing barrel and the powder splitter through an air pressure conveying device; powder collecting devices are arranged right below the mixing barrel and each raw material barrel; and a weight sensor is arranged between each sealing shell and the top end of the powder feeder box body, and the driving motor and the weight sensor are externally connected with an upper computer. The invention realizes the precise configuration of various cladding powders, reduces the transfer of the cladding powders among different devices and the contact with air, reduces the pollution of the cladding powders and ensures the use quality of cladding coatings.
Description
Technical Field
The invention relates to a laser cladding powder feeder with a powder preparation function, and belongs to the technical field of laser cladding.
Background
Laser cladding utilizes high-energy density laser beams to carry out non-contact heating on the surface layer of a matrix material and cladding powder, and a cladding coating with excellent performance is formed through rapid melting and solidification of the material. The laser cladding coating has more excellent hardness, wear resistance, corrosion resistance and obdurability than a base material, and has wide application prospect in the important engineering fields of machinery manufacturing, vehicles and ships, aerospace and the like. In order to obtain a cladding coating with excellent service performance, the cladding process usually adopts mixed powder consisting of different powders, such as common iron-based and nickel-based cladding powders, a small amount of carbon, nickel, chromium and other powders are added on the basis of one main powder, and ceramic powder is added into the iron-based and nickel-based powders, so that the hardness and the wear resistance of the cladding coating can be improved. The high-entropy alloy cladding coating composed of at least 5 metal elements has excellent wear resistance and corrosion resistance, but the high-entropy alloy cladding powder needs to be formed by mixing more raw material powder.
The synchronous powder feeding is a powder supply mode commonly used for laser cladding, the traditional laser cladding powder feeder can only realize the conveying of cladding powder, and the cladding powder needs to be additionally prepared and mixed before entering the powder feeder. However, the preparation, mixing and transfer of laser cladding powder between different devices inevitably causes oxidation and pollution due to contact with air, resulting in reduced usability of the cladding coating.
The laser cladding powder feeder disclosed in the chinese patent publication No. CN111534816A comprises: a powder cartridge; a seat portion; a cover plate; a turntable; a powder suction pipe; and a turntable motor.
The powder mixing device, the laser cladding powder feeding equipment and the laser cladding equipment disclosed in the Chinese invention patent with the publication number of CN113198372A comprise: the powder conveying device comprises a plurality of powder conveying structures, a stirring structure, a mixing structure and a driving piece in driving connection with the stirring structure and the mixing structure, and the powder conveying amount of different powders is changed by controlling the gas flow, so that the preparation of the powders with different mass ratios is realized.
The reference example can realize relatively accurate powder feeding, but the function of powder configuration still has certain defects, the quality of each powder is difficult to accurately control by controlling the powder feeding speed or the gas flow, and the complex cladding powder cannot be prepared, so that improvement is urgently needed.
Disclosure of Invention
In order to overcome the defects that the existing laser cladding powder feeder is lack of a powder precise configuration function, powder is easily polluted by manual powder configuration and the like, the invention designs the laser cladding powder feeder with the powder configuration function, which realizes the precise configuration of various cladding powders, reduces the transfer of the cladding powders among different devices and the contact with air, furthest reduces the pollution of the cladding powders and can effectively ensure the use quality of a cladding coating.
In order to achieve the purpose, the invention adopts the following technical scheme:
technical scheme one
A laser cladding powder feeder with a powder distribution function comprises a powder feeder box body, a mixing barrel, a laser cladding head, a powder splitter, a plurality of raw material barrels and a plurality of sealing shells, wherein the powder splitter and the laser cladding head are connected with each other and are arranged outside the powder feeder box body; powder collecting devices are arranged right below the mixing barrel and each raw material barrel, each powder collecting device comprises a conical powder collector and a powder feeding rotary table, each conical powder collector comprises a conical barrel with a wide upper part and a narrow lower part and a hollow sleeve seat which is fixed at the bottom end of the conical barrel and communicated with the conical barrel, and the hollow sleeve seat is fixedly arranged at the bottom end in the sealing shell and communicated with the air pressure conveying device; the powder feeding rotary table is in transmission connection with a driving motor in the conical cylinder, a plurality of powder conveying grooves are uniformly arranged on the arc surface of the powder feeding rotary table along the circumferential direction, and the calibers of the powder conveying grooves are more than or equal to those of outlets at the bottom ends of the mixing cylinder and the raw material cylinder; and a weight sensor is arranged between each sealing shell and the top end of the powder feeder box body, and the driving motor and the weight sensor are externally connected with an upper computer.
Furthermore, the pneumatic conveying device comprises an air source, a powder feeding pipe and an air inlet pipe which are communicated with the air source, the air source is fixedly arranged on the outer side surface of the powder feeder box body, the free end of the powder feeding pipe is sequentially communicated with a sealing shell connected with the mixing barrel and a powder splitter inside the sealing shell, and the free end of the powder feeding pipe penetrates through the powder feeder box body after extending out of the sealing shell and is communicated with the powder splitter; the quantity of intake pipe is the same with the former feed cylinder, and each intake pipe one-to-one communicates in proper order with the sealed shell of being connected with each former feed cylinder and inside powder shunt, and all communicate with the mixing drum after each intake pipe free end stretches out sealed shell.
Further, powder shunt inside cavity sets up and both ends are provided with into powder mouth and two powder outlets respectively about and, the inside splitter plate that is used for dividing into even two parts with powder shunt inner space that is provided with of powder shunt, and splitter plate both sides space communicates with two powder outlets respectively.
Furthermore, two powder feeding channels are arranged in the laser cladding head and are respectively communicated with the two powder outlets, the two powder feeding channels are symmetrically arranged on two sides of the laser head, cooling water cavities are also arranged on the side surfaces of the two powder feeding channels, and the cooling water cavities are externally connected with circulating cooling water.
Furthermore, a cover plate is arranged after the top end of the raw material barrel extends out of the sealing shell, and an end cover is arranged after the top end of the mixing barrel extends out of the sealing shell; be provided with the stirring subassembly in the mixing drum, the stirring subassembly includes rotating electrical machines and the (mixing) shaft of being connected with the rotating electrical machines transmission, and inside the (mixing) shaft free end rotated to stretch into the mixing drum after running through the end cover, and be connected with a plurality of stirring vane perpendicularly on the (mixing) shaft.
Furthermore, the side surface of one end of the mixing cylinder, which extends out of the sealing shell, is communicated with a side feeding cylinder.
Furthermore, sealing gaskets are arranged at the joints of the powder feeding pipe and the air inlet pipe and each sealing shell, the joints of the powder feeding pipe and the powder feeder box body and the joints of the air inlet pipe and the mixing barrel.
Furthermore, the bottom ends of the raw material barrel and the mixing barrel are both arranged in a conical shape.
Further, the upper computer comprises a rotating speed control panel fixed at the front end of the powder feeder box body.
Technical scheme two
The use method of the laser cladding powder feeder with the powder preparation function based on the technical scheme I comprises the following steps:
s1: inputting the mass ratio of each raw material powder on a rotating speed control panel, and obtaining the theoretical powder feeding amount of each raw material cylinder by the rotating speed control panel after the input is finished;
s2: selecting one raw material barrel on the rotating speed control panel as a reference barrel, and marking the rest raw material barrels as control barrels;
s3: adding raw material powder into each raw material barrel, transmitting the acquired weight data to a rotating speed control panel by a weight sensor connected with each raw material barrel at the moment, calculating the weight data difference before and after a certain time interval by a PLC (programmable logic controller) calculation module arranged in the rotating speed control panel, and taking the weight data difference as the actual powder feeding amount of the raw material powder;
s4: the PLC calculation module of the rotating speed control panel determines theoretical powder feeding amounts of other control cylinders according to a proportional relation according to the mass ratio of the raw material powder input on the rotating speed control panel in the step S1 on the basis of the actual powder feeding amount obtained in the step S3 by the reference cylinder marked in the step S2;
s5: the PLC calculation module of the rotating speed control panel compares the actual powder feeding amount obtained in the step S3 of the control cylinder marked in the step S2 with the theoretical powder feeding amount obtained in the step S4 of the control cylinder;
if the theoretical powder feeding amount is larger than the actual powder feeding amount, the rotating speed of the driving motor is increased through a PLC control module of a rotating speed control panel, so that the rotating speed of the powder feeding turntable is accelerated to increase the powder feeding amount of the control cylinder;
if the theoretical powder feeding amount is smaller than the actual powder feeding amount, the rotating speed is reduced, the rotating speed of the driving motor is reduced through a PLC control module of a rotating speed control panel, and therefore the rotating speed of the powder feeding rotary disc is reduced to reduce the powder feeding amount of the control cylinder;
when the theoretical powder feeding amount is equal to the actual powder feeding amount, the rotating speed of the driving motor is kept unchanged, and the powder entering the mixing cylinder meets the input expected mass ratio, namely, the precise configuration of the raw material powder is realized.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
1. according to the invention, through the arrangement of the powder collecting device, the rotating speed control panel and the weight sensor, the rotating speed of the powder feeding turntable below the raw material cylinder is automatically adjusted according to the mass ratio of raw material powder in the laser cladding powder, the data acquired by the weight sensor and a corresponding control program in the rotating speed control panel, so that the actual powder feeding amount is changed, the actual powder feeding amount of the raw material powder is equal to the theoretical powder feeding amount, the accurate preparation of the laser cladding powder is realized, the working efficiency is greatly improved, and the pollution to the powder is reduced.
2. According to the invention, through the arrangement of the gas source, the raw material barrel and the mixing barrel, the powder is conveyed by using air pressure, so that the manual contact in the powder mixing and configuring process is reduced, the powder is conveyed in a sealing manner through the arrangement of the sealing shell, the pollution of the cladding powder is reduced to the greatest extent, the use quality of the cladding coating can be effectively ensured, the whole powder conveying and mixing process is completed by the gas source, the motor and other components, a large amount of manpower and material resources are saved, the burden of workers is lightened, and the labor cost is also reduced; meanwhile, through the arrangement of the raw material barrels, the preparation of various raw materials can be realized, and the applicability of the device is improved.
3. According to the invention, the cooling water cavity is arranged on the laser cladding head, circulating cooling water enters from the lower end of the cooling water cavity and flows out from the upper end of the cooling water cavity, and the circulating cooling water passes by the powder feeding channel to take away heat, so that the powder feeding quality reduction caused by the blockage of the powder feeding channel outlet due to high-temperature sintering of laser cladding powder can be effectively prevented.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of the powder splitter of the present invention;
fig. 4 is a schematic structural view of a laser cladding head of the present invention;
FIG. 5 is a schematic view of the powder collecting apparatus of the present invention;
fig. 6 is a flow chart of the use of the present invention.
Wherein the reference numerals are: 1. laser cladding head; 2. a powder splitter; 3. a sealing gasket; 4. a rotational speed control panel; 5. a powder feeding pipe; 6. a raw material barrel; 7. a cover plate; 8. a stirring blade; 9. a rotating electric machine; 10. a mixing drum; 1001. a side feeding cylinder; 11. a stirring shaft; 12. a weight sensor; 13. a bolt; 14. a powder feeder box; 15. sealing the shell; 16. a powder feeding turntable; 1601. a powder conveying groove; 1602. a rotating shaft; 17. a conical powder collector; 1701. a tapered barrel; 1702. a hollow sleeve seat; 18. an air inlet pipe; 19. a gas source; 20. a powder outlet; 21. a splitter vane; 22. a powder inlet; 23. a cooling water cavity; 24. a laser head; 25. and a powder conveying channel.
Detailed Description
The present invention will be described in more detail with reference to examples.
As shown in fig. 1 to 5, the laser cladding powder feeder with the powder preparation function of this embodiment includes a powder feeder box 14, a mixing cylinder 10, a laser cladding head 1, a powder splitter 2, six raw material cylinders 6, and seven sealing cases 15, where different digital identifiers are respectively disposed on each raw material cylinder 6, so as to facilitate distinguishing different raw material cylinders 6, the powder splitter 2 and the laser cladding head 1 are connected to each other and are both disposed outside the powder feeder box 14, the powder splitter 2 and the laser cladding head 1 are mutually matched to implement laser cladding of mixed powder, each sealing case 15 is slidably, sealingly, plugged at the top end of the powder feeder box 14, and the top end of each sealing case 15 extends out of the powder feeder box 14, a flange extends out of the side surface of the top end of each sealing case 15, the mixing cylinder 10 and each raw material cylinder 6 are respectively, sealingly, and detachably, through bolts 13, and sealingly, plugged with each sealing case 15, and the top ends of the mixing cylinder 10 and each raw material cylinder 6 extend out of the sealing cases 15, and the top ends of each mixing cylinder 6 are sealingly, and the mixing cylinder 10 and the powder diverter 2 are all conveyed by an air pressure conveying device; a powder collecting device is arranged right below the mixing cylinder 10 and each raw material cylinder 6, the powder collecting device comprises a conical powder collector 17 and a powder feeding rotary disc 16, the conical powder collector 17 comprises a conical cylinder 1701 with a wide upper part and a narrow lower part and a hollow sleeve seat 1702 fixed at the bottom end of the conical cylinder 1701 and communicated with the conical cylinder 1701, and the hollow sleeve seat 1702 is fixedly arranged at the bottom end inside the sealing shell 15 and communicated with an air pressure conveying device; the powder feeding rotary disc 16 is in transmission connection with a driving motor in the conical cylinder 1701 through a rotary shaft 1602, the rotary shaft 1602 is driven to rotate through the driving motor, a plurality of powder conveying grooves 1601 are uniformly arranged on the arc surface of the powder feeding rotary disc 16 along the circumferential direction, the calibers of the powder conveying grooves 1601 are larger than or equal to the calibers of outlets at the bottom ends of the mixing cylinder 10 and the raw material cylinder 6, powder flows into the powder conveying grooves 1601 through the raw material cylinder 6 or the mixing cylinder 10, and the discharging speed is controlled by controlling the rotating speed of the driving motor; a weight sensor 12 is arranged between each sealing shell 15 and the top end of the powder feeder box body 14, and the driving motor and the weight sensor 12 are externally connected with an upper computer.
Further, the pneumatic conveying device comprises an air source 19, a powder feeding pipe 5 and an air inlet pipe 18 which are both communicated with the air source 19, the air source 19 is fixedly arranged on the outer side surface of the powder feeder box body 14, the free end of the powder feeding pipe 5 is sequentially communicated with a sealing shell 15 connected with the mixing cylinder 10 and a powder splitter 2 inside the sealing shell, and the free end of the powder feeding pipe 5 extends out of the sealing shell 15 and then penetrates through the powder feeder box body 14 and is communicated with the powder splitter 2; the quantity of intake pipe 18 is the same with former feed cylinder 6, each intake pipe 18 communicates in proper order with the sealed shell 15 that is connected with each former feed cylinder 6 and inside powder shunt 2 one-to-one, and all communicate with mixing drum 10 after each intake pipe 18 free end stretches out sealed shell 15, hollow casing seat 1702 is inside to have cup jointed and send powder pipe 5 or intake pipe 18, send powder pipe 5 or intake pipe 18 and toper section of thick bamboo 1701 and communicate, through starting air supply 19, utilize the atmospheric pressure of protective gas to send the powder raw materials in the former feed cylinder 6 into mixing drum 10 and mix, the powder after mixing can also be sent into powder shunt 2 through atmospheric pressure.
In particular, in order to satisfy the supply of a plurality of raw material powders, i.e., to arrange a plurality of raw material cartridges 6 and corresponding powder collecting means, the raw material cartridges 6 are marked with corresponding numbers for distinguishing different raw material cartridges 6; this embodiment is equipped with six former feed cylinder 6, and the optional use of former feed cylinder 6, six former feed cylinder 6 need not all put into use promptly, and every former feed cylinder 6 all is equipped with independent protective gas delivery valve, can realize the selective use of former feed cylinder 6 through the switch of control gas valve, and when closing gas valve, the corresponding protective gas that does not regard as powder feeding power in the powder feeding pipeline loses the transport capacity to the powder.
Further, the inside cavity of powder shunt 2 sets up and both ends are provided with into powder mouth 22 and two powder outlet 20 respectively about and, the inside splitter plate 21 that is used for dividing into even two parts with 2 inner space of powder shunt that is provided with of powder shunt 2, and splitter plate 21 both sides space communicates with two powder outlet 20 respectively.
Furthermore, two powder feeding channels 25 are arranged inside the laser cladding head 1, the two powder feeding channels 25 are respectively communicated with the two powder outlets 20, the two powder feeding channels 25 are symmetrically arranged on two sides of the laser head 24, cooling water cavities 23 are also arranged on the side surfaces of the two powder feeding channels 25, and circulating cooling water is externally connected to the cooling water cavities 23;
the mixed laser cladding powder is divided into two relatively equal powder flows by a vertically arranged splitter 21, then the powder flows out of a powder outlet 20, further enters a laser cladding head 1, and is sprayed out of a powder feeding channel 25 to participate in laser cladding; in addition, in order to avoid the reduction of powder feeding quality caused by the blockage of the powder feeding channel 25 outlet due to high-temperature sintering of laser cladding powder, a cooling water cavity 23 is arranged beside the powder feeding channel 25, circulating cooling water enters from the lower end of the cooling water cavity 23 and flows out from the upper end of the cooling water cavity 23, the cooling water needs to be continuously supplied during laser cladding, and the circulating cooling water passes by the powder feeding channel 25 to take away heat, so that the powder feeding channel 25 is prevented from generating overhigh temperature.
Particularly, the material of the laser cladding head 1 should be antistatic and non-magnetic, so as to prevent the sprayed powder from being adsorbed on the surface of the laser cladding head 1.
Furthermore, a cover plate 7 is arranged after the top end of the raw material barrel 6 extends out of the sealing shell 15, and an end cover is arranged after the top end of the mixing barrel 10 extends out of the sealing shell 15; be provided with the stirring subassembly in the mixing drum 10, the stirring subassembly includes rotating electrical machines 9 and the (mixing) shaft 11 of being connected with the 9 transmission of rotating electrical machines, 11 free ends of (mixing) shaft rotate and stretch into mixing drum 10 inside after running through the end cover, and be connected with a plurality of stirring vane 8 on the (mixing) shaft 11 perpendicularly, raw and other materials powder that get into in the mixing drum 10 collides with rotary motion's stirring vane 8, disperse in the mixing drum 10, the powder receives the effect whereabouts of gravity, through the stirring of multilayer stirring vane 8 layer upon layer, the realization uses different powders to melt the homogeneous mixing of powder as the laser cladding of raw materials.
Particularly, the number of blades can be properly increased in order to further ensure the mixing uniformity of the cladding powder.
Furthermore, the side surface of the mixing drum 10 extending out of one end of the sealing shell 15 is communicated with a side feeding drum 1001, and laser cladding powder proportioned by other methods can be directly added into the mixing drum 10 through the side feeding drum 1001.
Furthermore, sealing gaskets 3 are arranged at the joints of the powder feeding pipe 5 and the air inlet pipe 18 and the sealing shells 15, the joints of the powder feeding pipe 5 and the powder feeder box body 14 and the joints of the air inlet pipe 18 and the mixing barrel 10, so that the pollution of the powder caused by the outside air entering the powder feeder is prevented.
Further, the bottom ends of the raw material barrel 6 and the mixing barrel 10 are both arranged in a conical shape.
Further, the upper computer comprises a rotating speed control panel 4 fixed at the front end of the powder feeder box body 14. .
Further, the bottom ends of the raw material barrel 6 and the mixing barrel 10 are both arranged in a conical shape.
As shown in fig. 6, the method for using the laser cladding powder feeder with the powder preparation function comprises the following steps:
s1: inputting the mass ratio of each raw material powder on the rotating speed control panel 4, and obtaining the theoretical powder feeding amount of each raw material cylinder 6 by the rotating speed control panel 4 after the input is finished;
s2: one of the raw material barrels 6 is selected to be marked as a reference barrel on the rotating speed control panel 4, and the rest raw material barrels 6 are marked as control barrels;
s3: adding raw material powder into each raw material barrel 6, transmitting the acquired weight data to the rotating speed control panel 4 by the weight sensor 12 connected with each raw material barrel 6 at the moment, calculating the weight data difference before and after a certain time interval by a PLC (programmable logic controller) calculation module arranged in the rotating speed control panel 4, and taking the weight data difference as the actual powder feeding amount of the raw material powder;
s4: the PLC calculation module of the rotating speed control panel 4 determines theoretical powder feeding amounts of other control cylinders according to a proportional relation according to the mass ratio of the raw material powder input on the rotating speed control panel 4 in the step S1 on the basis of the actual powder feeding amount obtained in the step S3 of the reference cylinder marked in the step S2;
s5: the PLC calculation module of the rotation speed control panel 4 compares the actual powder feeding amount obtained in step S3 of the control cylinder marked in step S2 with the theoretical powder feeding amount obtained in step S4 of the control cylinder;
if the theoretical powder feeding amount is larger than the actual powder feeding amount, the rotating speed of the driving motor is increased through a PLC control module of the rotating speed control panel 4, so that the rotating speed of the powder feeding turntable 16 is accelerated to increase the powder feeding amount of the control cylinder;
if the theoretical powder feeding amount is less than the actual powder feeding amount, the rotating speed is reduced, the rotating speed of the driving motor is reduced through a PLC control module of the rotating speed control panel 4, and therefore the rotating speed of the powder feeding turntable 16 is reduced to reduce the powder feeding amount of the control cylinder;
when the theoretical powder feeding amount is equal to the actual powder feeding amount, the rotation speed of the driving motor is kept unchanged, and the powder entering the mixing cylinder 10 meets the input expected mass ratio, namely, the precise configuration of the raw material powder is realized.
The working principle of the invention is as follows: firstly, adding raw material powder into a raw material barrel 6, then starting a gas source 19, introducing protective gas into a sealing shell 15 connected with the raw material barrel 6 by using a gas inlet pipe 18, so that the raw material powder is continuously introduced into a mixing barrel 10 through the gas inlet pipe 18 by using air pressure, after the powder of each raw material barrel 6 enters the mixing barrel 10, driving a stirring shaft 11 in the mixing barrel 10 to rotate through a rotating motor 9, so that the raw material powder is fully stirred by using a stirring blade 8, thereby completing the mixing configuration of the powder, continuously introducing the protective gas into the sealing shell 15 connected with the mixing barrel 10 through a powder feeding pipe 5 by using the gas source 19, continuously feeding the well-mixed powder into a powder splitter 2 by using the air pressure, and performing powder cladding through a laser cladding head 1 after the shunting action of the powder splitter 2;
when former feed cylinder 6 and mixing drum 10 output powder, the powder can fall into earlier in the defeated powder groove 1601 of powder feed carousel 16, and powder feed carousel 16 has driving motor control to rotate, control motor connects speed control panel 4, the leading-in PLC control program that has in the speed control panel 4, speed control panel 4 can in time adjust driving motor's rotational speed according to weight sensor 12's feedback, and then realize the rotational speed regulation of powder feed carousel 16, utilize the butt joint of the intermittent type nature of defeated powder groove 1601 and the delivery outlet of former feed cylinder 6 and mixing drum 10, can realize carrying out the handle to the output speed and the ratio of powder and control, thereby realize accurate powder feed.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of 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.
Claims (10)
1. A laser cladding powder feeder with powder preparation function, its characterized in that: the powder feeding device comprises a powder feeding device box body (14), a mixing cylinder (10), a laser cladding head (1), a powder splitter (2), a plurality of raw material cylinders (6) and a plurality of sealing shells (15), wherein the powder splitter (2) and the laser cladding head (1) are mutually connected and are arranged outside the powder feeding device box body (14), each sealing shell (15) is inserted at the top end of the powder feeding device box body (14) in a sliding and sealing manner, the mixing cylinder (10) and each raw material cylinder (6) are respectively detachably and hermetically inserted with each sealing shell (15) in a one-to-one correspondence manner, and powder is conveyed between each raw material cylinder (6) and the mixing cylinder (10) and between the mixing cylinder (10) and the powder splitter (2) through an air pressure conveying device; powder collecting devices are arranged right below the mixing cylinder (10) and each raw material cylinder (6), each powder collecting device comprises a conical powder collector (17) and a powder feeding rotary disc (16), each conical powder collector (17) comprises a conical cylinder (1701) with a wide upper part and a narrow lower part and a hollow sleeve seat (1702) fixed at the bottom end of the corresponding conical cylinder (1701) and communicated with the corresponding conical cylinder (1701), and each hollow sleeve seat (1702) is fixedly arranged at the bottom end inside the corresponding sealing shell (15) and communicated with the corresponding pneumatic conveying device; the powder feeding turntable (16) is in transmission connection with a driving motor inside the conical barrel (1701), a plurality of powder conveying grooves (1601) are uniformly arranged on the arc surface of the powder feeding turntable (16) along the circumferential direction, and the calibers of the powder conveying grooves (1601) are more than or equal to the calibers of the mixing barrel (10) and the bottom outlet of the raw material barrel (6); weight sensors (12) are arranged between the sealing shells (15) and the top end of the powder feeder box body (14), and the driving motor and the weight sensors (12) are externally connected with an upper computer.
2. The laser cladding powder feeder with powder distribution function of claim 1, characterized in that: the pneumatic conveying device comprises an air source (19), and a powder feeding pipe (5) and an air inlet pipe (18) which are communicated with the air source (19), wherein the air source (19) is fixedly arranged on the outer side surface of a powder feeder box body (14), the free end of the powder feeding pipe (5) is sequentially communicated with a sealing shell (15) connected with the mixing barrel (10) and a powder splitter (2) inside the sealing shell, and the free end of the powder feeding pipe (5) extends out of the sealing shell (15) and then penetrates through the powder feeder box body (14) and is communicated with the powder splitter (2); the number of the air inlet pipes (18) is the same as that of the raw material barrels (6), the air inlet pipes (18) are communicated with the sealing shells (15) connected with the raw material barrels (6) and the powder diverters (2) inside the sealing shells in a one-to-one correspondence mode, and the free ends of the air inlet pipes (18) extend out of the sealing shells (15) and are communicated with the mixing barrels (10).
3. The laser cladding powder feeder with powder distribution function of claim 1, characterized in that: powder shunt (2) inside cavity sets up and both ends are provided with into powder mouth (22) and two powder outlets (20) respectively about and, and powder shunt (2) inside is provided with and is used for dividing into even bipartition's splitter plate (21) with powder shunt (2) inner space, and splitter plate (21) both sides space communicates with two powder outlets (20) respectively.
4. The laser cladding powder feeder with powder distribution function of claim 3, characterized in that: two powder conveying channels (25) are arranged in the laser cladding head (1), the two powder conveying channels (25) are respectively communicated with the two powder outlets (20), the two powder conveying channels (25) are symmetrically arranged on two sides of the laser head (24), cooling water cavities (23) are arranged on the side surfaces of the two powder conveying channels (25), and the cooling water cavities (23) are externally connected with circulating cooling water.
5. The laser cladding powder feeder with powder distribution function of claim 1, characterized in that: the top end of the raw material barrel (6) extends out of the sealing shell (15) and is provided with a cover plate (7), and the top end of the mixing barrel (10) extends out of the sealing shell (15) and is provided with an end cover; be provided with the stirring subassembly in mixing drum (10), the stirring subassembly includes rotating electrical machines (9) and (mixing) shaft (11) of being connected with rotating electrical machines (9) transmission, (mixing) shaft (11) free end rotate run through the end cover after stretch into mixing drum (10) inside, and be connected with a plurality of stirring vane (8) on (mixing) shaft (11) perpendicularly.
6. The laser cladding powder feeder with powder distribution function of claim 1, characterized in that: the side surface of one end of the mixing cylinder (10) extending out of the sealing shell (15) is communicated with a side feeding cylinder (1001).
7. The laser cladding powder feeder with powder distribution function of claim 1, characterized in that: sealing gaskets (3) are arranged at the joints of the powder feeding pipe (5) and the air inlet pipe (18) and the sealing shells (15), the joints of the powder feeding pipe (5) and the powder feeder box body (14) and the joints of the air inlet pipe (18) and the mixing cylinder (10).
8. The laser cladding powder feeder with powder distribution function of claim 1, characterized in that: the bottom ends of the raw material cylinder (6) and the mixing cylinder (10) are both arranged in a conical shape.
9. The laser cladding powder feeder with powder distribution function of claim 1, characterized in that: the upper computer comprises a rotating speed control panel (4) fixed at the front end of the powder feeder box body (14).
10. A method for using the laser cladding powder feeder with the powder preparation function based on the claims 1-9, which is characterized by comprising the following steps: the method comprises the following steps:
s1: inputting the mass ratio of each raw material powder on a rotating speed control panel (4), and obtaining the theoretical powder feeding amount of each raw material cylinder (6) by the rotating speed control panel (4) after the input is finished;
s2: one raw material barrel (6) is selected to be marked as a reference barrel on the rotating speed control panel (4), and the rest raw material barrels (6) are marked as control barrels;
s3: adding raw material powder into each raw material barrel (6), transmitting the acquired weight data to a rotating speed control panel (4) by a weight sensor (12) connected with each raw material barrel (6), calculating the weight data difference before and after a certain time interval by a PLC (programmable logic controller) calculation module arranged in the rotating speed control panel (4), and taking the weight data difference as the actual powder feeding amount of the raw material powder;
s4: a PLC calculation module of the rotating speed control panel (4) determines theoretical powder feeding amounts of other control cylinders according to a proportional relation according to the mass ratio of the raw material powder input on the rotating speed control panel (4) in the step S1 on the basis of the actual powder feeding amount obtained in the step S3 of the reference cylinder marked in the step S2;
s5: a PLC calculation module of the rotating speed control panel (4) compares the actual powder feeding amount of the control cylinder marked in the step S2 and obtained in the step S3 with the theoretical powder feeding amount of the control cylinder obtained in the step S4;
if the theoretical powder feeding amount is larger than the actual powder feeding amount, the rotating speed of the driving motor is increased through a PLC control module of the rotating speed control panel (4), so that the rotating speed of the powder feeding turntable (16) is accelerated to increase the powder feeding amount of the control cylinder;
if the theoretical powder feeding amount is smaller than the actual powder feeding amount, the rotating speed is reduced, the rotating speed of the driving motor is reduced through a PLC control module of a rotating speed control panel (4), and therefore the rotating speed of the powder feeding rotary disc (16) is reduced to reduce the powder feeding amount of the control cylinder;
when the theoretical powder feeding amount is equal to the actual powder feeding amount, the rotating speed of the driving motor is kept unchanged, and the powder entering the mixing cylinder (10) meets the input expected mass ratio, namely, the precise configuration of the raw material powder is realized.
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| CN202210969639.5A CN115323369A (en) | 2022-08-12 | 2022-08-12 | Laser cladding powder feeder with powder distribution function |
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| CN202210969639.5A CN115323369A (en) | 2022-08-12 | 2022-08-12 | Laser cladding powder feeder with powder distribution function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115786906A (en) * | 2022-11-17 | 2023-03-14 | 西安鑫精合智能制造有限公司 | Powder feeding device for laser cladding |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342640A (en) * | 2007-07-11 | 2009-01-14 | 中国科学院沈阳自动化研究所 | Coaxial powder feeding system for preparing functionally graded material by laser rapid prototyping |
| CN205874541U (en) * | 2016-08-01 | 2017-01-11 | 武汉武钢华工激光大型装备有限公司 | A powder feeding device that is used for laser gradient to melt covering |
| CN106947969A (en) * | 2017-04-24 | 2017-07-14 | 江苏大学 | A kind of recoverable multipath conversion auxiliary drying laser coating and powder feeding device |
| CN108189406A (en) * | 2018-03-16 | 2018-06-22 | 吉林大学 | A kind of essence amount proportioning powder feed system and powder outlet quantity and proportional quantity dynamic control method |
| CN111139472A (en) * | 2020-02-17 | 2020-05-12 | 江苏海宇机械有限公司 | Powder feeding device for high-speed laser cladding |
| CN111424275A (en) * | 2020-05-26 | 2020-07-17 | 新疆汇翔激光科技有限公司 | Laser cladding powder feeder |
| JP6864810B1 (en) * | 2020-04-21 | 2021-04-28 | 陜西斯瑞新材料股▲ふん▼有限公司 | Mass production method and equipment for CuCr composite contacts by laser cladding |
| CN112846241A (en) * | 2020-12-31 | 2021-05-28 | 天津镭明激光科技有限公司 | Online powder supply system and powder supply method for laser cladding |
| CN213624386U (en) * | 2020-11-25 | 2021-07-06 | 宁波镭速激光科技有限公司 | High-speed laser cladding powder feeder |
| CN213652651U (en) * | 2020-11-25 | 2021-07-09 | 宁波镭速激光科技有限公司 | High-speed laser cladding machine tool |
| CN213652650U (en) * | 2020-11-25 | 2021-07-09 | 宁波镭速激光科技有限公司 | Laser cladding device |
-
2022
- 2022-08-12 CN CN202210969639.5A patent/CN115323369A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342640A (en) * | 2007-07-11 | 2009-01-14 | 中国科学院沈阳自动化研究所 | Coaxial powder feeding system for preparing functionally graded material by laser rapid prototyping |
| CN205874541U (en) * | 2016-08-01 | 2017-01-11 | 武汉武钢华工激光大型装备有限公司 | A powder feeding device that is used for laser gradient to melt covering |
| CN106947969A (en) * | 2017-04-24 | 2017-07-14 | 江苏大学 | A kind of recoverable multipath conversion auxiliary drying laser coating and powder feeding device |
| CN108189406A (en) * | 2018-03-16 | 2018-06-22 | 吉林大学 | A kind of essence amount proportioning powder feed system and powder outlet quantity and proportional quantity dynamic control method |
| CN111139472A (en) * | 2020-02-17 | 2020-05-12 | 江苏海宇机械有限公司 | Powder feeding device for high-speed laser cladding |
| JP6864810B1 (en) * | 2020-04-21 | 2021-04-28 | 陜西斯瑞新材料股▲ふん▼有限公司 | Mass production method and equipment for CuCr composite contacts by laser cladding |
| CN111424275A (en) * | 2020-05-26 | 2020-07-17 | 新疆汇翔激光科技有限公司 | Laser cladding powder feeder |
| CN213624386U (en) * | 2020-11-25 | 2021-07-06 | 宁波镭速激光科技有限公司 | High-speed laser cladding powder feeder |
| CN213652651U (en) * | 2020-11-25 | 2021-07-09 | 宁波镭速激光科技有限公司 | High-speed laser cladding machine tool |
| CN213652650U (en) * | 2020-11-25 | 2021-07-09 | 宁波镭速激光科技有限公司 | Laser cladding device |
| CN112846241A (en) * | 2020-12-31 | 2021-05-28 | 天津镭明激光科技有限公司 | Online powder supply system and powder supply method for laser cladding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115786906A (en) * | 2022-11-17 | 2023-03-14 | 西安鑫精合智能制造有限公司 | Powder feeding device for laser cladding |
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