CN205974664U - Take uninstallation formula broadband powder feeding nozzle of downside protection flow channel - Google Patents
Take uninstallation formula broadband powder feeding nozzle of downside protection flow channel Download PDFInfo
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- CN205974664U CN205974664U CN201620859188.XU CN201620859188U CN205974664U CN 205974664 U CN205974664 U CN 205974664U CN 201620859188 U CN201620859188 U CN 201620859188U CN 205974664 U CN205974664 U CN 205974664U
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- powder
- hole
- flow channel
- groove
- unload
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- 239000000843 powder Substances 0.000 title claims abstract description 119
- 238000005192 partition Methods 0.000 claims description 28
- 239000000428 dust Substances 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 abstract 5
- 239000007789 gas Substances 0.000 description 26
- 239000012159 carrier gas Substances 0.000 description 17
- 230000005484 gravity Effects 0.000 description 10
- 238000005253 cladding Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000004372 laser cladding Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 239000002245 particle Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Prevention Of Fouling (AREA)
Abstract
The utility model provides a take uninstallation formula broadband powder feeding nozzle of downside protection flow channel, include from the top down in proper order the level fold and to establish and roof, spacer and the bottom plate of reciprocal anchorage, roof entrance tilt up extends, is equipped with the powder through -hole on the roof entrance, is equipped with the uninstallation through -hole on the bottom plate entrance, and the top mouth of powder through -hole exposes in roof constitution powder inlet, and the end mouth and the through -hole of uninstalling of powder through -hole pass through the through -hole intercommunication on the filter screen, and the filter screen is laid on the uninstallation through -hole, is equipped with horizontally powder flow channel between roof and the spacer, powder flow channel's one end and powder through -hole intercommunication, and the exit end that the other end extended to roof and spacer constitutes powder outlet, be equipped with horizontally protection flow channel between bottom plate and the spacer, the one end of protection flow channel communicates with the protection gas through -hole on the bottom plate, and the exit end that the other end extended to bottom plate and spacer constitutes the export of protection flow channel.
Description
Technical field
This utility model is related to a kind of nozzle, more particularly, to a kind of unload-type broadband powder feeding spray with downside protection air-flow road
Mouth.
Background technology
Laser remanufacturing technology, as the re-manufacturing technology of a kind of green, forward position, equips reparation, important portion in heavy construction
Part remanufactures aspect, creates significant economic benefit and good social benefit.
More than laser remanufacturing technology by the way of synchronous powder feeding system laser melting coating, according to powder-feeding nozzle and light beam relative position
Difference, synchronous powder feeding system is divided into coaxial powder-feeding and lateral powder feeding again, and wherein, lateral powder feeding is applied to broadband laser cladding, for
Some large-scale workpieces, the such as occasion such as macrotype axes series parts surface, large-area planar laser melting coating, using broadband laser cladding, energy
Enough greatly improve cladding efficiency, and overlap joint number of times and heat affected area can be reduced, thus obtaining the cladding layer of better quality.
During laser remanufacturing, automatic powder feeding system, according to the difference of powder feeding power source, can be divided into gravity type powder feeding and carrier gas
Formula powder feeding etc. is dissimilar.Wherein, gravity type powder feeding is that the deadweight relying on powder is conveyed, and is particularly well-suited to vertical powder feeding,
This automatic powder feeding system powder using efficiency is higher, and up to 90%, the cladding layer obtaining smooths, and cladding quality is good, but in the face of complicated
Operating mode, during long distance delivery powder, has that powder transports and is short of power, the seriality of impact powder output and uniformly
Property, meanwhile, in the lateral powder feeding of certain angle, only under gravity, powder is in that parabolical exports from nozzle to powder, powder
The accuracy entering molten bath is low, has had a strong impact on powder using efficiency, these all constrain the application of gravity type powder feeding.
Carrier gas type powder feeding is the power conveying powder relying on gas based on Dual-Phrase Distribution of Gas olid principle, and this mode can be real
Now gas powder uniformly mixes, and the seriality of powder output, uniformity are good, and are not substantially limited by powder feeder and nozzle relative position
System, achievable complex working condition, distance, at any angle powder output, so carrier gas type automatic powder feeding system is widely adopted, but
Carrier gas type powder feeding is there is problems that powder can be affected by carrier gas, on the one hand, easily cause output powder bundle in the presence of carrier gas
Dissipate, the convergence degree of powder low so that powder using efficiency very low (generally below 50%)；On the other hand accelerated to make by carrier gas
With powder output speed is very big, easily causes powder and acutely rebounds, and is unfavorable for that light powder couples, cladding layer is formed and adversely affects.
So, reduce powder and dissipate, increase the light powder degree of coupling, improving powder using efficiency is that carrier gas type powder feeding dependency structure sets
The important references of meter.
Patent CN103990800A discloses a kind of pressure release type paraxonic powder-feeding nozzle device for laser 3D printing machine, institute
State spray nozzle device and carry an infundibulate circular cone cavity body structure, and pressure relief vent is opened up on end cap, for discharge part carrier gas,
Metal dust can be separated by this mode to a certain extent with transporting carrier gas, reduce carrier gas and export the unfavorable of quality to powder
Impact, but, using this structure, on the one hand because separation of air from dust cavity space is compared with the big many of powder delivery channel, portion can be caused
Dividing powder retention in taper separation intracavity, thus affecting quantitative, the uniform output of powder, laser melting coating being had adverse effect；
On the other hand, this labyrinth considerably increases nozzle volume, is unfavorable for flexibly using in laser cladding process.
Content of the invention
For solving the above problems, this utility model provides a kind of unload-type broadband powder feeding spray with downside protection air-flow road
Mouth.
The technical solution of the utility model is：
A kind of unload-type broadband powder-feeding nozzle with downside protection air-flow road, sets and phase including level is folded successively from top to bottom
Top board, partition and the base plate mutually fixed；Top board entrance is inclined upwardly extension, and top board entrance is provided with powder through hole, base plate
Entrance is provided with unloading through hole, and the top opening of powder through hole exposes to top board and constitutes powdering inlet, the base opening of powder through hole with unload
Carry the through hole connection that through hole passes through on drainage screen, drainage screen is laid on unloading through hole,
It is provided with the powder flow channel of level, one end of powder flow channel is connected with powder through hole, the other end between top board and partition
The port of export extending to top board with partition constitutes dust outlet；
It is provided with the shielding gas runner of level, one end of shielding gas runner is led to the shielding gas on base plate between base plate and partition
Hole connects, and the other end extends to base plate and constitutes shielding gas runner exit with the port of export of partition.
Further, shielding gas runner exit is located at the underface of dust outlet.
Further, the width of shielding gas runner is more than the width of powder flow channel.
Further, the bottom surface of top board offers the first groove, the top surface of base plate offers the second groove, the top of partition
Face and the first groove enclose powder flow channel, and the bottom surface of partition and the second groove enclose shielding gas runner, and the second groove
Groove width is more than the groove width of the first groove.
Further, described partition offers through hole, and through hole is aligned up and down and passes through with powder through hole and unloading port
Logical.
Further, top board entrance is inclined upwardly 45 °
Further, protection vent hole is vertically arranged along described base plate, and protection vent hole is connected with the second groove.
Further, the top surface periphery of unloading port is provided with annular positioning groove.
Further, drainage screen is arranged in locating slot by seal washer, and seal washer and drainage screen are sequentially placed into positioning
In groove, the either flush of the top surface of drainage screen and base plate after being fixed and clamped.
Further, described seal washer is elastic plain washer, and described drainage screen is wire netting.
The beneficial effects of the utility model are：
This utility model has carrier gas type powder feeding and the advantage of gravity type powder feeding concurrently, overcomes both deficiencies, powder gas simultaneously
Before entering nozzle, carrier gas can play advantage in powder transport process, will be transported with carrying by unloading port after entering nozzle
Gas is achieved carrier gas after laying down and is separated with powder, it is to avoid the adverse effect that carrier gas exports to follow-up powder.Uninstalling load
After gas, powder relies on inertia and action of gravity to export along powder flow channel lower wall；Meanwhile, in the downside of powder flow channel, synchronously interpolation is lazy
Property shielding gas, powder is protected the rectified action of gas, can keep preferable deflection and directivity, it is to avoid powder bundle is only in gravity
The parabolical form causing under effect, the accuracy entering molten bath is thus protected, and powder using efficiency effectively improves；
Brief description
Fig. 1 is Structure explosion diagram of the present utility model.
Fig. 2 is sectional view of the present utility model.
Fig. 3 is the upward view of top board.
Fig. 4 is the side view of top board.
Fig. 5 is the top view of partition.
Fig. 6 is the top view of base plate.
Fig. 7 be in Fig. 6 A-A to sectional view.
Fig. 8 is utility model works schematic diagram.
Specific embodiment
As illustrated, a kind of unload-type broadband powder-feeding nozzle with downside protection air-flow road, including water successively from top to bottom
Flat folded top board 1, partition 2 and the base plate 3 setting and interfixing；Top board entrance 11 is inclined upwardly extension, on top board entrance 11
It is provided with powder through hole 111, the entrance of base plate 3 is provided with unloading through hole 33, and the top opening of powder through hole 111 exposes to top board and constitutes
Powdering inlet, the base opening of powder through hole 111 is connected by the through hole on drainage screen 4 with unloading through hole 33, and drainage screen 4 is laid on and unloads
Carry on the locating slot 331 of through hole 33 top surface,
It is provided with the powder flow channel M of level, one end of powder flow channel M is connected with powder through hole 111 between top board 1 and partition 2,
The other end extends to top board and constitutes dust outlet m with the port of export of partition；
It is provided with the shielding gas runner N of level, the guarantor on one end of shielding gas runner N and base plate 3 between base plate 3 and partition 2
Shield vent hole 32 connects, and the other end extends to base plate and constitutes shielding gas outlet n with the port of export of partition.
Shielding gas outlet n is located at immediately below dust outlet m so that shielding gas preferably lifts powder bundle.
The width of shield flow channel N is more than the width of powder flow channel M it is ensured that whole powder bundle can be protected gas uniformity
Lift effect.
First groove 12 is offered on the bottom surface of top board 1, the top surface of base plate 3 offers the second groove 31, the top of partition 2
Face and the first groove 12 enclose powder flow channel M, and the bottom surface of partition 2 and the second groove 31 enclose shielding gas N runner, and second
The groove width of groove 31 is more than the groove width of the first groove 12.
Offer through hole 21 on described partition 2, and through hole 21 is aligned simultaneously about 33 with powder through hole 111 and unloading port
Insertion.
Top board entrance 111 is inclined upwardly 45 °.
Protection vent hole 32 is vertically arranged along described base plate 3, and protection vent hole 32 is connected with the second groove 31.
The top surface periphery of unloading port 33 is provided with annular positioning groove 331, and seal washer 5 and drainage screen 4 are sequentially placed into locating slot
In 331,
Described drainage screen 4 by elastic packing packing ring 5 be fixed in locating slot it is ensured that after compression the top surface of drainage screen 4 with
The either flush of base plate 3, and prevent gap between drainage screen 4 and locating slot for the powder particle from spilling.
Described drainage screen 4 is wire netting, and for ensureing that powder is not passed through, described drainage screen 4 adopts compact metal net, and unloads
Can fold on through hole 33 and set multiple filtration net 4 to increase filter screen intensity and filter effect.
Top board 1, partition 2 and base plate 3 are provided with the screw 6 of insertion, and it is solid up and down that top board 1, partition 2 and base plate 3 pass through screw
Fixed, drainage screen 4 is clamped between partition 2 and base plate 3.
As shown in figure 8, accessing airborne powder mix ab at the powdering inlet of powder through hole 111, powder is in carrier gas
Sweep along lower entrance this utility model, carrier gas b freely can be released by unloading port 33, and powder a then can be subject to hindering of drainage screen 4
Every, and in the presence of the bounce in drainage screen 4 and gravity, entering powder flow channel M, powder a relies on remaining kinetic energy and action of gravity
Lower wall along powder flow channel M exports from dust outlet.
Generally 45 degree about of the angle that during paraxonic lateral powder feeding, powder is delivered, the powder bundle of output is only easy under gravity
Deformation is sagging, forms parabolical, now powder Shu Tingdu is poor, and powder is difficult to concentrate, and the accuracy that powder enters molten bath is low, causes powder
Last utilization rate is low.From protecting, vent hole 32 is synchronous to be passed through inertia shielding gas c to shielding gas runner N to this utility model, goes out in powder
At mouthful, shielding gas c located directly below has rectified action to powder bundle a so that powder bundle a keeps good deflection and directivity,
Make in the molten bath e that the entrance laser beam d irradiation that powder is more accurate, concentrate is formed, powder using efficiency can effectively improve；This
Outward, the inertia shielding gas c of interpolation can form atmosphere protection around the e of molten bath, reduce crucible zone oxidation, improve cladding quality.
Content described in this specification embodiment is only enumerating of the way of realization to utility model design, and this practicality is new
The protection domain of type is not construed as being only limitted to the concrete form that embodiment is stated, protection domain of the present utility model also wraps
Include those skilled in the art according to this utility model design it is conceivable that equivalent technologies mean.
Claims (9)
1. a kind of with downside protection air-flow road unload-type broadband powder-feeding nozzle it is characterised in that：Including water successively from top to bottom
Flat folded top board, partition and the base plate setting and interfixing；Top board entrance is inclined upwardly extension, and top board entrance is provided with powder
Through hole, base plate entrance is provided with unloading through hole, and the top opening of powder through hole exposes to top board and constitutes powdering inlet, powder through hole
Base opening is connected by the through hole on drainage screen with unloading through hole, and drainage screen is laid on unloading through hole,
It is provided with the powder flow channel of level, one end of powder flow channel is connected with powder through hole, the other end extends between top board and partition
The port of export to top board and partition constitutes dust outlet；
It is provided with the shielding gas runner of level, one end of shielding gas runner is connected with the protection vent hole on base plate between base plate and partition
Logical, the other end extends to base plate and constitutes shielding gas runner exit with the port of export of partition.
2. as claimed in claim 1 a kind of with downside protection air-flow road unload-type broadband powder-feeding nozzle it is characterised in that：Protect
Shield flow channel outlet is located at the underface of dust outlet.
3. as claimed in claim 2 a kind of with downside protection air-flow road unload-type broadband powder-feeding nozzle it is characterised in that：Protect
The width of shield flow channel is more than the width of powder flow channel.
4. as claimed in claim 3 a kind of with downside protection air-flow road unload-type broadband powder-feeding nozzle it is characterised in that：Top
First groove is offered on the bottom surface of plate, the top surface of base plate offers the second groove, the top surface of partition is enclosed with the first groove
Become powder flow channel, the bottom surface of partition and the second groove enclose shielding gas runner, and the groove width of the second groove is more than the first groove
Groove width.
5. as claimed in claim 4 a kind of with downside protection air-flow road unload-type broadband powder-feeding nozzle it is characterised in that：Institute
State and offer through hole on partition, and through hole is aligned and insertion up and down with powder through hole and unloading port.
6. as claimed in claim 5 a kind of with downside protection air-flow road unload-type broadband powder-feeding nozzle it is characterised in that：Protect
Shield vent hole is vertically arranged along described base plate, and protection vent hole is connected with the second groove.
7. as claimed in claim 6 a kind of with downside protection air-flow road unload-type broadband powder-feeding nozzle it is characterised in that：Unload
The periphery carrying hole is provided with annular positioning groove, and drainage screen is arranged in locating slot, and the either flush of the top surface of drainage screen and base plate.
8. as claimed in claim 7 a kind of with downside protection air-flow road unload-type broadband powder-feeding nozzle it is characterized in that：Institute
State drainage screen to be fixed in locating slot by seal washer.
9. as claimed in claim 8 a kind of with downside protection air-flow road unload-type broadband powder-feeding nozzle it is characterised in that：Institute
Stating drainage screen is wire netting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620859188.XU CN205974664U (en) | 2016-08-08 | 2016-08-08 | Take uninstallation formula broadband powder feeding nozzle of downside protection flow channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620859188.XU CN205974664U (en) | 2016-08-08 | 2016-08-08 | Take uninstallation formula broadband powder feeding nozzle of downside protection flow channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205974664U true CN205974664U (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620859188.XU Expired - Fee Related CN205974664U (en) | 2016-08-08 | 2016-08-08 | Take uninstallation formula broadband powder feeding nozzle of downside protection flow channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205974664U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106119836A (en) * | 2016-08-08 | 2016-11-16 | 浙江工业大学 | The unload-type broadband powder-feeding nozzle of flow channel is protected on the downside of a kind of band |
| CN113894292A (en) * | 2021-09-30 | 2022-01-07 | 南京中科煜宸激光技术有限公司 | Powder feeding device and method for broadband laser cladding additive manufacturing |
-
2016
- 2016-08-08 CN CN201620859188.XU patent/CN205974664U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106119836A (en) * | 2016-08-08 | 2016-11-16 | 浙江工业大学 | The unload-type broadband powder-feeding nozzle of flow channel is protected on the downside of a kind of band |
| CN113894292A (en) * | 2021-09-30 | 2022-01-07 | 南京中科煜宸激光技术有限公司 | Powder feeding device and method for broadband laser cladding additive manufacturing |
| CN113894292B (en) * | 2021-09-30 | 2024-04-12 | 南京中科煜宸激光技术有限公司 | Powder feeding device and method for broadband laser cladding additive manufacturing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20190808 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |