CN106111381B - A kind of thermoplastic powder spray fusing spray gun spray nozzle - Google Patents
A kind of thermoplastic powder spray fusing spray gun spray nozzle Download PDFInfo
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- CN106111381B CN106111381B CN201610813573.5A CN201610813573A CN106111381B CN 106111381 B CN106111381 B CN 106111381B CN 201610813573 A CN201610813573 A CN 201610813573A CN 106111381 B CN106111381 B CN 106111381B
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- spray
- air
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- spray nozzle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
- B05B7/168—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed with means for heating or cooling after mixing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
Abstract
A kind of thermoplastic powder spray fusing spray gun spray nozzle, the present invention are not easy to disperse to melt to propose a kind of thermoplastic powder spray fusing spray gun spray nozzle to solve plastic powders in the prior art.There is the present invention powder conveying section, powder melts section and drop to spray section, powder conveying section is connected with powder melts section, powder melts section sprays section with drop and is connected, there is powder conveying section air-flow through-hole and air current spray nozzle, powder melts section to have cavity wall, heater and melt cavity made of being enclosed by cavity wall and heater;The thermoplastic of melting is sprayed via jet head.The beneficial effects of the invention are as follows:So that plastic powders is melted in powder melts section, and section is sprayed by drop and is emitted into uniform liquid phase plastic grain, the evenly dispersed of molten plastic powder may be implemented, and avoid the defects of plastic powders change colour because of flame calcination, are denaturalized, burning.
Description
Technical field
The present invention relates to material processing fields, and in particular to a kind of thermoplastic powder spray fusing spray gun spray nozzle.
Background technology
Plastics have become most frequently used one kind material in people's daily life, as technological progress is constantly changed
Into plastics be widely used in the manufacture etc. of building subassembly, food containers, life appliance, electric appliance casing, aerospace craft, and it is close
Nian Lai, plastics more start to be used for the occasions such as the manufacture of functional composite material.The meeting in functional composite material processing and manufacturing
It, in actual use often can not be according to also just since plastic powders particle is small using to the smaller plastic powders of particle
Mated formation using purpose.Plastic powders can be deposited on composite material raw material because of the reason of gravity in the preparation of composite material
The bottom of mixture, and cause material to be unevenly distributed and then the mechanical property and apparent mass of material may be influenced.Make plastics
Powder is mated formation as required, and realizes the thickness that is evenly dispersed, controlling plastics pave-load layer after the completion of mating formation of powder particle, is to work as
The preceding major issue for needing to solve.
Although using dust gun by plastic powders be ejected into material surface can solve the problems, such as to mat formation it is uniform, when multiple
Further mixing can similarly lead to the problem of powder precipitation is with accumulating to the raw material of condensation material, can still cause unevenness of mating formation
It is even.Plastic powders are heated to molten condition and are ejected into workpiece surface by the flame formed using burning gases, are applied to be formed
The technological means of layer, mats formation on demand although plastic powders can be made to be achieved to a certain extent, the coating formed at this time point
Scattered property is bad, and finally formed lamella has deviated from the original intention using plastic powders, and the direction due to flame and the bad control of temperature
System, it may appear that plastic powders burning generates the defect of peculiar smell or discoloration denaturation, influences the quality of product.
Plastic powders are heated to molten condition and are ejected by the flame therefore formed in the prior art using burning gases
The mode of workpiece surface can not directly apply to the manufacture of composite material, and lacking one kind in the prior art makes plastic powders can be with
It is evenly dispersed at the same can be to avoid discoloration that plastic powders occur by centralized head load or flame, denaturation, burning the defects of
Thermoplastic powder spray fusing spray gun spray nozzle.
Invention content
The present invention is to solve a series of problems existing in the prior art, and then propose a kind of thermoplastic powder spray fusing
With spray gun spray nozzle, which with spray gun spray nozzle there is powder conveying section, powder melts section and drop to spray
Section, the powder conveying section are connected with the powder melts section, and the powder melts section sprays section with drop and is connected, the powder
There is air-flow through-hole and air current spray nozzle, the powder melts section to have cavity wall, heater and by the cavity wall and heating for transportation section
Device melts cavity made of enclosing;The air-flow through-hole is connected by air current spray nozzle with the melting cavity of the powder melts section;
The drop sprays section tool interconnecting piece and jet head, and one end of the melting cavity is connected with the interconnecting piece, the interconnecting piece
It is connect with the jet head, the thermoplastic of melting is sprayed through jet head.The beneficial effects of the invention are as follows:By being respectively set
Powder conveying section, powder melts section and drop, which spray section, allows plastic powders to be melted in powder melts section, and passes through drop
It sprays section and is emitted into uniform liquid phase plastic grain, mat formation when liquid phase plastic grain arrival and may be implemented when face freezes uniformly
Dispersion, and avoid the defects of plastic powders change colour, are denaturalized, burning.
Further, the air-flow through-hole has primary air road, expands circulation road, volume suction spout, attached wall curved surface and advection cavity, institute
It states volume and inhales the intersection that spout is set to the primary air road and the expansion circulation road, the volume inhales spout and the attached wall curved surface phase
Neighbour, the attached wall curved surface enclose the advection cavity, and the advection cavity is connected with the air current spray nozzle.
Further, the powder conveying section is made of air inlet component and mixed gas component, the air inlet component and the mixed gas
Parts nest connects, and the powder conveying section is connected by the mixed gas component with the powder melts section;The intake section
Part is equipped with primary air road entrance and expands flow channel inlet, has primary air chamber between the mixed gas component and the air inlet component
And volume inhales spout, air enters primary air chamber and inhale spout by volume by primary air road entrance to be sprayed, during air-flow sprays
The Air Entrainment that the air expanded near flow channel inlet is sprayed in primary air chamber;On the mixed gas component spout is inhaled with the volume
Adjacent is equipped with attached wall curved surface, and air and the air inhaled by volume enter the mixed gas component along the attached wall curved surface, and described in warp
The advection cavity that attached wall curved surface encloses is moved to air current spray nozzle direction.
Further, the cavity wall is connected by reinforcing member with heater, and anti-scald interlayer is also wrapped on outside the cavity wall.
Further, the air current spray nozzle is parallel airflow nozzle;The air is the mixing air containing plastic powders.
Further, the air current spray nozzle is equipped with advection drainage plate, and the advection drainage plate is multiple, and each advection drains
Plate is mutually parallel.
Further, the heater is combustion heater, fuel heater, laser heater, infrared heater, electromagnetism add
One or more combination in hot device and resistance heater.
Further, the heater is controllable temperature resistance heating wire, and the temperature range of the heater heating is Celsius 150
It spends to 600 degrees Celsius.
Further, there is the jet head connecting leg and spray nozzle, the connecting leg to be threadedly coupled with the interconnecting piece.
Further, the spray nozzle is conical spray nozzle, and the cone spray nozzle is equipped with regulating valve, described in adjusting
Regulating valve can change the shape of the conical spray nozzle, and then change sprayed liquid level width.
A kind of application method of thermoplastic powder spray fusing spray gun spray nozzle, includes the following steps:
The first step, by the powder of external air and powder conduit and the thermoplastic powder spray fusing spray gun spray nozzle
Air-flow through-hole on last transportation section is connected;
Second step connects the power supply of powder melts section, is preheated for the heater of powder melts section, controls heater
Temperature is 150 degrees Celsius to 600 degrees Celsius;
Third walks, and starts high-pressure powder container, pushes air and powder to air-flow through-hole;
4th step, air spray to powder melts section with powder through air current spray nozzle, and heated device acts in melting cavity
Turn to plastics drop;
5th step, the plastics drop are sprayed through jet head, are cured after heat transmits cooling.
Further, air-flow through-hole described in the first step has primary air road and expands circulation road, the primary air road and high pressure
Powder container is connected by pipeline;Start high-pressure powder container in third step, pushes air and powder to primary air road, and through inhaling
Volume spout drives the air expanded in circulation road to enter advection cavity through attached wall curved surface with powder.
Further, it before air sprays to powder melts section with powder through flow nozzle in the 4th step, first passes through multiple flat
The drainage of the advection drainage plate of row setting.
Description of the drawings
Fig. 1 is the principle of the present invention schematic diagram;
Fig. 2 is the structural schematic diagram of the present invention;
Fig. 3 is the partial sectional view of the present invention;
Fig. 4 is the diagrammatic cross-section of the present invention;
Fig. 5 is local principle schematic of the invention;
Fig. 6 is the dissection schematic diagram of another angle of the present invention;
Fig. 7 is the schematic diagram that the present invention installs anti-scald interlayer additional;
Fig. 8 is the structural exploded view of the present invention.
Each section meaning is as follows in figure:1 powder conveying section;11 air-flow through-holes;12 air current spray nozzles;121 advection drainage plates;13
Primary air road;131 primary air road entrances;132 primary air chambers;14 expand circulation road;141 expand flow channel inlet;The suction spouts of volume 15;16
Attached wall curved surface;17 advection cavities;18 air inlet components;19 mixed gas components;2 powder melts sections;21 cavity walls;22 heaters;23 melt chambers
Body;24 reinforcing members;25 anti-scald interlayers;3 drops spray section;31 interconnecting pieces;32 jet heads;321 connecting legs;322 spray nozzles.
Specific implementation mode
Illustrate the specific implementation mode of the present invention below in conjunction with the accompanying drawings.
Specific implementation mode 1:Illustrate present embodiment in conjunction with Fig. 1 and Fig. 2, a kind of thermoplastic described in present embodiment
Powder spray fusing spray gun spray nozzle, there is powder conveying section 1, powder melts section 2 and drop to spray section 3 it is characterized in that:The powder
Last transportation section 1 is connected with the powder melts section 2, and the powder melts section 2 sprays section 3 with drop and is connected, the powder conveying
There is section 1 air-flow through-hole 11 and air current spray nozzle 12, the powder melts section 2 to have cavity wall 21, heater 22 and by the cavity wall
21 and heater 22 enclose made of melt cavity 23;The air-flow through-hole 11 passes through air current spray nozzle 12 and the powder melts section
2 melting cavity 23 is connected;The drop sprays section 3 and has interconnecting piece 31 and a jet head 32, one end of the melting cavity 23 with
The interconnecting piece 31 is connected, and the interconnecting piece 31 is connect with the jet head 32, and the thermoplastic of melting is sprayed through jet head 32
Go out.
Present embodiment has the technical effect that:Section is sprayed by the way that powder conveying section, powder melts section and drop is respectively set
Plastic powders are allow to be melted in powder melts section, the inlet of temperature and air in the melt zone, each clock gas
Ratio, flow direction of gas etc. are controllable, thus can change colour to avoid plastic powders, denaturation, burning the defects of;Due to passing through drop
Spray section be emitted into uniform liquid phase plastic grain, when liquid phase plastic grain arrival mat formation face freeze into plastic grain when can
Realize the evenly dispersed of plastic grain.
Specific implementation mode 2:Illustrate present embodiment in conjunction with Fig. 2, Fig. 3, Fig. 4 and Fig. 5, a kind of heat described in present embodiment
Thermoplastic plastic powder spray fusing spray gun spray nozzle, the air-flow through-hole 11 have primary air road 13, expand circulation road 14, volume suction spout
15, attached wall curved surface 16 and advection cavity 17, the volume inhale spout 15 and are set to the primary air road 13 and the friendship for expanding circulation road 14
At remittance, the volume suction spout 14 is adjacent with the attached wall curved surface 16, and the attached wall curved surface 16 encloses the advection cavity 17, described
Advection cavity 17 is connected with the air current spray nozzle 12;Other are identical as specific implementation mode 1.
Present embodiment has the technical effect that:By the way that primary air road 13 is arranged in powder conveying section, expands circulation road 14, volume suction
Spout 15, attached wall curved surface 16 and advection cavity 17 so that the air expanded when primary air road 13 is ventilated around circulation road 14 can be because of volume
It inhales spout 15 and inhales the flow velocity therefore expanded for making air to the volume of air, the air and plastic powders inhaled by volume can be along attached wall songs
Face 16 moves, and since air driven plastic powders enter advection cavity so that not only plastic powders in the present embodiment
Transfer efficiency improves, and more allows air that advection output occurs, and then control the transmission direction of plastic powders, makes plastic powders not
It can assemble in powder melts section 2, also avoid adhesion of the plastic powders in cavity wall and heater.
Specific implementation mode 3:Illustrate present embodiment in conjunction with Fig. 4, Fig. 5, Fig. 6 and Fig. 7, a kind of heat described in present embodiment
Thermoplastic plastic powder spray fusing spray gun spray nozzle, the powder conveying section 1 are made of air inlet component 18 and mixed gas component 19, it is described into
Gas component 18 and mixed 19 nested encryptions of gas component, and the powder conveying section 1 passes through the mixed gas component 19 and the powder
Last melt zone 2 is connected;The air inlet component 18 is equipped with primary air road entrance 131 and expands flow channel inlet 141, the mixed gas portion
Between part 19 and the air inlet component 18 have primary air chamber 132 and volume inhale spout 15, air by primary air road entrance 131 into
It becomes owner of air flow chamber 132 and spout 15 is inhaled by volume and spray, the air that air-flow expands during spraying near flow channel inlet 141 is led
The Air Entrainment sprayed in air flow chamber;15 adjacent of spout is inhaled with the volume be equipped with attached wall curved surface 16 on the mixed gas component 19,
Air and the air inhaled by volume enter the mixed gas component 19 along the attached wall curved surface 16, and are enclosed through the attached wall curved surface 16
Advection cavity 17 moved to 12 direction of air current spray nozzle;Other are identical as any one of specific implementation mode 1-2.
Present embodiment has the technical effect that:By the way that air inlet component 18 and mixed gas component 19 is arranged in powder conveying section, and
Primary air road entrance 131 is set on air inlet component 18 and expands flow channel inlet 141, makes thermoplastic powder spray fusing spray gun
Nozzle can preferably be connect with external equipment, and due to the setting of primary air chamber 132, make the transfer capability of powder delivery section more
By force;Air enters primary air chamber 132 and inhale spout 15 by volume by primary air road entrance 131 to be sprayed, during air-flow sprays
Expand the Air Entrainment that is sprayed in primary air chamber of air near flow channel inlet 141, on the mixed gas component 19 with the volume
It inhales 15 adjacent of spout and is equipped with attached wall curved surface 16, air and the air inhaled by volume enter the mixed gas portion along the attached wall curved surface 16
Part 19, and the advection cavity 17 enclosed through the attached wall curved surface 16 is moved to 12 direction of air current spray nozzle, and air is allow to put down
Stream output, and then the transmission direction of plastic powders is controlled, so that plastic powders is not assembled in powder melts section 2, the sky of acceleration
Gas air-flow, which plays, carries out self-cleaning effect for equipment, avoids adhesion of the plastic powders in cavity wall and heater.
Specific implementation mode 4:Illustrate present embodiment in conjunction with Fig. 4 and Fig. 7, a kind of thermoplastic described in present embodiment
Powder spray fusing spray gun spray nozzle, the cavity wall 21 are connected by reinforcing member 24 with heater 22, are also wrapped on outside the cavity wall 21
Anti-scald interlayer 25;Other are identical as any one of specific implementation mode 1-3.
Present embodiment has the technical effect that:Heater is set to be fixed;Anti-scald interlayer is arranged outside cavity wall to be prevented
User is scalded during use.
Specific implementation mode 5:Illustrate present embodiment in conjunction with Fig. 3, Fig. 4 and Fig. 5, a kind of thermoplasticity described in present embodiment
Plastic powders spray fusing spray gun spray nozzle, the air current spray nozzle 12 are parallel airflow nozzle;The air is to contain plastic powders
Mixing air;Other are identical as any one of specific implementation mode 1-4.
Present embodiment has the technical effect that:Plastic powders and powder have been further prevented due to being provided with parallel airflow nozzle
The related device such as last melt zone cavity wall, heater carries out making contact, and plastics is prevented to be sticked on melting cavity;Air is to contain modeling
The mixing air at feed powder end, can make plastic powders evenly dispersed in air, and plastic powders can also be made to be easier in powder
Melt zone is more rapid to be melted, and is avoided plastic powders and is sticked together in melting process, also avoid plastic powders with
The adhesions in relation to device such as powder melts section cavity wall, heater.
Specific implementation mode 6:Embodiment is described with reference to Fig. 4, a kind of thermoplastic powder described in present embodiment
Spray fusing spray gun spray nozzle, the air current spray nozzle 12 are equipped with advection drainage plate 121, and the advection drainage plate 121 is multiple, and each
Advection drainage plate 121 is mutually parallel;Other are identical as any one of specific implementation mode 1-5.
Present embodiment has the technical effect that:Due to provided with multiple advection drainage plates being mutually parallel, further preventing
The related device such as plastic powders and powder melts section cavity wall, heater carries out making contacts, and plastics is prevented to be sticked to melting cavity
On.
Specific implementation mode 7:Illustrate present embodiment in conjunction with Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 8, one described in present embodiment
Kind thermoplastic powder spray fusing spray gun spray nozzle, the heater 22 are combustion heater, fuel heater, laser heating
One or more combination in device, infrared heater, electromagnetic heater and resistance heater;Other and specific implementation mode 1-6
Any one of it is identical.
Present embodiment has the technical effect that:As a result of the heater with higher performance, make plastic powders in powder
It can be effectively heated to molten condition rapidly in the melt chamber body of last melt zone.
Specific implementation mode 8:Illustrate present embodiment in conjunction with Fig. 3, Fig. 4, Fig. 6 and Fig. 8, a kind of heat described in present embodiment
Thermoplastic plastic powder spray fusing spray gun spray nozzle, the heater 22 are controllable temperature resistance heating wire, what the heater 22 heated
Temperature range is in 150 to 600 facilities degree centigrade;Other are identical as any one of specific implementation mode 1-7.
Present embodiment has the technical effect that:Due to use, resistance heating wire heats, and keeps heating operation more convenient,
Keep heated perimeter and heating time more flexible controllable;The resistance heating wire can control temperature range and be arrived at 150 degrees Celsius
600 facility degree, can facilitate different types of plastic molting.
Specific implementation mode 9:Illustrate present embodiment in conjunction with Fig. 6 and Fig. 7, a kind of thermoplastic described in present embodiment
Powder spray fusing spray gun spray nozzle has connecting leg 321 and spray nozzle 322, the connecting leg 321 and the connection in the jet head 32
Portion 31 is threadedly coupled;Other are identical as any one of specific implementation mode 1-8.
Present embodiment has the technical effect that:Since the connecting leg 321 is threadedly coupled with the interconnecting piece 31, make the spray
Liquid head can be replaced flexibly as needed, can be as needed when the object of the plastics kind of spray fusing or spray fusing changes
More preferable nozzle is without replacing entire thermoplastic powder spray fusing spray gun spray nozzle.
Specific implementation mode 10:Illustrate present embodiment in conjunction with Fig. 6 and Fig. 8, a kind of thermoplasticity modeling described in present embodiment
Feed powder end spray fusing spray gun spray nozzle, the spray nozzle 322 are conical spray nozzle, and the cone spray nozzle, which is equipped with, to be adjusted
Valve, the shape of the conical spray nozzle can be changed by adjusting the regulating valve, and then change sprayed liquid level width;Other
It is identical as any one of specific implementation mode 1-9.
Present embodiment has the technical effect that:Due to being equipped with regulating valve on the conical spray nozzle, make to be sprayed
Liquid level width can change, allow the plastic grain sprayed through thermoplastic powder spray fusing spray gun spray nozzle with it is compound
The raw material mixing of material evenly, or can ensure that working efficiency improves by regulating liquid surface width in turn as needed.
Claims (10)
1. a kind of thermoplastic powder spray fusing spray gun spray nozzle has powder conveying section (1), powder melts section (2) and drop
Spray section (3) it is characterized in that:The powder conveying section (1) is connected with the powder melts section (2), the powder melts section
(2) it sprays section (3) with drop to be connected, the powder conveying section (1) has air-flow through-hole (11) and air current spray nozzle (12), the powder
Last melt zone (2) has cavity wall (21), heater (22) and is melted made of being enclosed by the cavity wall (21) and heater (22)
Cavity (23);Melting cavity (23) phase that the air-flow through-hole (11) passes through air current spray nozzle (12) and the powder melts section (2)
Even;The drop, which sprays section (3), has interconnecting piece (31) and jet head (32), one end of the melting cavity (23) and the company
Socket part (31) is connected, and the interconnecting piece (31) connect with the jet head (32), and the thermoplastic of melting is through jet head (32)
It sprays.
2. a kind of thermoplastic powder spray fusing spray gun spray nozzle according to claim 1, it is characterised in that:The air-flow is logical
Hole (11) has primary air road (13), expands circulation road (14), volume suction spout (15), attached wall curved surface (16) and advection cavity (17), institute
It states volume and inhales the intersection that spout (15) is set to the primary air road (13) and the expansion circulation road (14), the volume inhales spout (15)
Adjacent with the attached wall curved surface (16), the attached wall curved surface (16) encloses the advection cavity (17), the advection cavity (17) with
The air current spray nozzle (12) is connected.
3. a kind of thermoplastic powder spray fusing spray gun spray nozzle according to claim 1, it is characterised in that:The powder is defeated
Section (1) is sent to be made of air inlet component (18) and mixed gas component (19), the air inlet component (18) and the mixed gas component (19) are embedding
Set connection, and the powder conveying section (1) is connected by the mixed gas component (19) with the powder melts section (2);It is described into
Gas component (18) be equipped with primary air road entrance (131) and expansion flow channel inlet (141), the mixed gas component (19) and it is described into
There is primary air chamber (132) and volume to inhale spout (15), air is entered by primary air road entrance (131) to be led between gas component (18)
Air flow chamber (132) simultaneously inhales spout (15) ejection by volume, and air-flow expands the air quilt of flow channel inlet (141) nearby during spraying
The Air Entrainment sprayed in primary air chamber;Spout (15) adjacent is inhaled with the volume be equipped with attached wall song on the mixed gas component (19)
Face (16), air and the air inhaled by volume enter the mixed gas component (19) along the attached wall curved surface (16), and through the attached wall
The advection cavity (17) that curved surface (16) encloses is moved to air current spray nozzle (12) direction.
4. a kind of thermoplastic powder spray fusing spray gun spray nozzle according to claim 3, it is characterised in that:The cavity wall
(21) it is connected with heater (22) by reinforcing member (24), anti-scald interlayer (25) is also wrapped on outside the cavity wall (21).
5. a kind of thermoplastic powder spray fusing spray gun spray nozzle according to claim 3, it is characterised in that:The air-flow spray
Mouth (12) is parallel airflow nozzle;The air is the mixing air containing plastic powders.
6. a kind of thermoplastic powder spray fusing spray gun spray nozzle according to claim 5, it is characterised in that:The air-flow spray
Mouth (12) is equipped with advection drainage plate (121), and the advection drainage plate (121) is multiple, and each advection drainage plate (121) is mutual
It is parallel.
7. according to a kind of any one of claim 1-6 thermoplastic powder spray fusing spray gun spray nozzles, it is characterised in that:
The heater (22) is combustion heater, fuel heater, laser heater, infrared heater, electromagnetic heater and resistance
One or more combination in heater.
8. according to a kind of any one of claim 1-6 thermoplastic powder spray fusing spray gun spray nozzles, it is characterised in that:
The heater (22) is controllable temperature resistance heating wire, and the temperature range of heater (22) heating is in 150 to 600 degree.
9. according to a kind of any one of claim 1-6 thermoplastic powder spray fusing spray gun spray nozzles, it is characterised in that:
There is the jet head (32) connecting leg (321) and spray nozzle (322), the connecting leg (321) to connect with the interconnecting piece (31) screw thread
It connects.
10. a kind of thermoplastic powder spray fusing spray gun spray nozzle according to claim 9, it is characterised in that:The hydrojet
Mouth (322) is conical spray nozzle, and the cone spray nozzle is equipped with regulating valve, adjust the regulating valve can change it is described
The shape of conical spray nozzle.
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CN103203301A (en) * | 2013-03-25 | 2013-07-17 | 张东 | Plastic thermal spraying gun |
CN203697487U (en) * | 2014-01-23 | 2014-07-09 | 德清中科金融信息技术研究所 | Nozzle structure for printing head of 3D printer |
CN105642454A (en) * | 2015-12-31 | 2016-06-08 | 东北大学 | Spray nozzle used for vacuum web spray coating |
CN206168609U (en) * | 2016-09-11 | 2017-05-17 | 北京林业大学 | Thermoplastic powder is spray gun shower nozzle for spray fusing |
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