CN207630520U - A kind of gas conveying-type increasing material manufacturing power spreading device - Google Patents
A kind of gas conveying-type increasing material manufacturing power spreading device Download PDFInfo
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- CN207630520U CN207630520U CN201721102865.4U CN201721102865U CN207630520U CN 207630520 U CN207630520 U CN 207630520U CN 201721102865 U CN201721102865 U CN 201721102865U CN 207630520 U CN207630520 U CN 207630520U
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- material manufacturing
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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
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Abstract
The utility model is related to a kind of gas conveying-type increasing material manufacturing power spreading devices in increasing material manufacturing equipment technology field, including powder tank, the both side ends of the powder tank are connected with slide plate, the powder tank lower parallel is equipped with two rows of guide rails being connect with slide plate slides, powder tank lower part is equipped with long and narrow meal outlet along its length, powder diffusion region is equipped on the downside of meal outlet, the powder diffusion region it is vertical with powder direction is gone out laterally be equipped with jet pipe chamber, the jet pipe chamber and jet piping connection, the puff prot length of the jet pipe chamber is identical as the length of meal outlet, feed opening is equipped on the downside of the powder diffusion region of the puff prot opposite direction, the roof of corresponding powder diffusion region is equipped with exhaust outlet above the feed opening, the exhaust oral area is equipped with filter screen.The power spreading device of the utility model realizes the whereabouts of powdering material by the swabbing action of air-flow, and the speed of powder whereabouts can be controlled by the adjusting of Jet Stream flow, to realize uniform powdering blanking, and reduces the motion noise of Powder spreader.
Description
Technical field
The utility model is related to increasing material manufacturing equipment technology field, more particularly to a kind of gas conveying-type increasing material manufacturing powdering
Device.
Background technology
For the printer of 3DP types, need first to spread one layer of powder material in workbench, powder material can be metal
Powder, foundry sand etc. only make in this layer of powder, then again by modes such as laser sintered or spraying adhesives by workpiece
The drape forming solidification of slice surface covering, so workpiece needed for successively printing accumulation molding.Existing power spreading device is typically logical
Vibration powder falling is crossed, the problems such as stuck, powdering is uneven often occurs, and powdering amount is uncontrollable, can not accurately adjust powdering thickness.
The noise caused by vibration is also the main noise source in 3D printing workshop.
Chinese utility model patent《A kind of increasing material manufacturing powder discharging device》（Application number CN201610116333.X, publication number
CN105598451A, publication date 2016.05.25）In disclose a kind of powdering structure.The structure critical piece is a powder falling
The surface of axis, axis carries multiple axial notches, and powder falling axis is fixed on the centre of powder bucket and meal outlet, and powder falling axis is driven by motor
Rotation, makes the groove on axis take the powder in powder bucket to meal outlet blanking.Quantitative powder feeding and uniformly paving may be implemented in the structure
Powder, but the structure requires the straightness of powder falling axis very high, processing and manufacturing difficulty.Meanwhile the surface of axis and powder tank are long-term
Accuracy decline after friction can influence the precision of powder sending quantity, and the service life is relatively low.And for the poor material of mobility, it is possible to can glue
Being connected in axis upper groove can not fall, and cause powder feeding uneven.Since the structure is beam simply support at each end, the middle part of axis can not support
It reinforces, easily deforms, therefore be not particularly suitable for the large-scale 3D printing equipment that length is more than 2 meters and use.In short, the structure is only applicable in
In small size and the high operating mode of powder mobility, it is not suitable for powder poor fluidity（Such as mixed with the casting model powder of curing agent）, equipment ruler
Very little larger operating mode.
Utility model content
For the utility model for there are powdering lack of homogeneity for increasing material manufacturing power spreading device in the prior art, powdering amount can not
Control, vibrating noise is big when lower powder, requires high problem to provide a kind of gas conveying-type increasing material manufacturing powdering powder mobility
Device utilizes the defeated purpose for realizing evenly laid out powder of gas.
The purpose of this utility model is achieved in that a kind of gas conveying-type increasing material manufacturing power spreading device, including powder tank,
The both side ends of the powder tank are connected with slide plate, and the powder tank lower parallel is equipped with two rows of guide rails being connect with slide plate slides, institute
It states powder tank lower part and is equipped with long and narrow meal outlet along its length, powder diffusion region is equipped on the downside of the meal outlet, the powder expands
Dissipate lateral equipped with jet pipe chamber, the jet pipe chamber and jet piping connection, the jet of the jet pipe chamber vertical with powder direction is gone out in area
Mouth length is identical as the length of meal outlet, and feed opening, the feed opening are equipped on the downside of the powder diffusion region of the puff prot opposite direction
The roof of the corresponding powder diffusion region in top is equipped with exhaust outlet, and the exhaust oral area is equipped with filter screen.
Jet pipe chamber is arranged on the downside of meal outlet, and sprays for the gas conveying-type increasing material manufacturing power spreading device of the utility model
The jet direction of tube chamber is vertical with powder direction is gone out, and the powder of whereabouts is blowed to powder diffusion region, meanwhile, the high-speed flow of puff prot
Surrounding air is taken away, so that the powder tank bottom meal outlet above puff prot is formed about vacuum area, and will be in the vacuum area
Powder siphoned away into powder diffusion region with Jet Stream, in powder diffusion region, powder falls and under the effect of gravity from blanking
Mouth carries out blanking powdering, and Jet Stream is discharged from exhaust pipe after filtering, to realize the shunting discharge of powder air-flow.This practicality
Novel power spreading device changes the mode for vibrating blanking in the prior art, and powdering powder stream is realized by the swabbing action of air-flow
It falls, the speed of powder whereabouts can be controlled by the adjusting of Jet Stream flow, to realize uniform powdering blanking, and is subtracted
The motion noise of small Powder spreader.
For powdering and the discharge quantity requirement for adapting to without powder, the powder tank lower part is equipped with side along the section parallel with end face
The bottom that shape is shunk, the meal outlet are arranged on the rectangular side wall for shrinking bottom, and the side wall above the meal outlet is equipped with
Adjust the adjustable plate of discharge port size.
To prevent the vacuum degree at meal outlet is excessively high from influencing powder, on the side wall of the powder tank bottom of the meal outlet opposite direction
It is equipped with several aeration valves along powder tank length direction.To the appropriate tonifying Qi of vacuum area near the meal outlet of powder tank bottom, can prevent
The vacuum area vacuum degree is excessively high, and is conducive to accurately control powder outlet quantity.
As the improvement of the utility model, the jet pipeline includes air inlet pipe, pressure maintaining valve, the outlet end connection of pressure maintaining valve
Several conduits, the conduit is uniformly distributed along the length direction of powder tank, and the outlet end of each conduit is connected to jet pipe chamber, jet pipe chamber edge
Jet direction is equipped with the jet slit shunk, and the end of the jet slit connects puff prot, and the section of the puff prot is in cough
Shape is put greatly.The jet pipe chamber of the utility model, gas enter jet pipe chamber from conduit, and air-flow, through jet slit, then is passed through along jet pipe chamber
The jet oral area of amplification enters powder diffusion region, and the change dramatically of flow area makes high-speed flow take away the air of surrounding, is formed
The vacuum of the powder tank bottom of top, and the powder of the vacuum area is made to be siphoned away with air-flow, into diffusion region.
For ease of the separation that diffusion region solid powder and gas are stopped, the feed opening be located at the downside wall of powder diffusion region with far
At the angle of cut from puff prot offside side wall, close to feed opening downside wall be equipped with acclivitous guide section, the exhaust outlet with
The lateral wall in the areas powder San Kuo between feed opening tilts 5-10o inwardly from top to bottom.Into diffusion region powder forward
In flow process, under the guide effect of guide section, rush on opposite side wall, under the effect of gravity, solid powder falls, gas
Row goes out from exhaust outlet through filter screen filtration heel row.
To reduce the noise of vent air-flow, muffler is equipped with above the exhaust outlet.
To adapt to the blanking requirement of different powders, the adjustable plate lower part is equipped with to the backgauge end of meal outlet inner inclination,
The angle of line is less than the stocking angle of powder between the end and meal outlet lower edge at the backgauge end.Stocking angle herein
It is that powder particle material is formed by conical surface sideline under natural packing state, accumulation can be worked as with horizontal line shape at an angle
Material continues to increase, but when the angle still remains unchanged, and constant angle at this time is stocking angle.The accumulation of identical component powder
Angle can be measured by experiment, pass through the position of up and down adjustment adjustable plate, thus it is possible to vary the size at angle makes the heap less than powder
Product angle, can prevent powder automatically leads to the error of powder outlet quantity from meal outlet outflow.
To make the air-flow of each conduit even into jet pipe chamber, the jet pipe chamber is fixed on powder tank bottom, the jet pipe chamber
Inlet end is socketed each conduit, the conduit and the flat tube that the linkage section that jet pipe chamber is socketed is laid out in parallel by interconnecting piece sealing
Section.
Description of the drawings
Fig. 1 is the stereogram of the gas conveying-type increasing material manufacturing power spreading device of the utility model.
Fig. 2 is the structural schematic diagram of the gas conveying-type increasing material manufacturing power spreading device of the utility model.
Fig. 3 is the partial enlarged view at I in Fig. 2.
Fig. 4 is the partial enlarged view at II in Fig. 2.
Fig. 5 be Fig. 2 along A-A to sectional view.
Wherein, 1 air inlet pipe；2 pressure maintaining valves；3 conduits；4 interconnecting pieces；5 jet pipe chambers；6 aeration valves；7 powder tanks；8 adjustable plates；9 disappear
Sound device；10 slide plates；11 guide rails；12 workbench；13 powder diffusion regions；13A guide sections；14 feed openings；15 filter screens.
Specific implementation mode
As Figure 1-Figure 5, it is a kind of gas conveying-type increasing material manufacturing power spreading device of the utility model, including powder tank
7, the both side ends of powder tank 7 are connected with slide plate 10, and 7 lower parallel of powder tank is equipped with two rows of guide rails 11 being slidably connected with slide plate 10,
7 lower part of powder tank is equipped with long and narrow meal outlet along its length, is equipped with powder diffusion region 13 on the downside of meal outlet, powder diffusion region 13 with
Go out powder direction it is vertical be laterally equipped with jet pipe chamber 5, jet pipe chamber 5 and jet piping connection, the puff prot length of jet pipe chamber 5 and go out powder
The length of mouth is identical, and 13 downside of powder diffusion region of puff prot opposite direction is equipped with feed opening 14, the corresponding powder in 14 top of feed opening
The roof of diffusion region 13 is equipped with exhaust outlet, and exhaust oral area is equipped with filter screen 15, and the top of filter screen is equipped with muffler 9.
To adapt to be equipped with along the section parallel with end face rectangular without powdering and the discharge quantity requirement of powder, 7 lower part of powder tank
The bottom of contraction, meal outlet are arranged on the rectangular side wall for shrinking bottom, and the side wall above meal outlet, which is equipped with, adjusts discharge port
The mounting height of the adjustable plate 8 of size, the adjustable plate 8 can be adjusted along powder tank side wall, to adapt to different powder blanking requirements；For
Further accurate to adjust, 8 lower part of adjustable plate is equipped with the backgauge end 8A to meal outlet inner inclination, the end A at backgauge end and goes out powder
The angle of line is less than the stocking angle of powder between mouth lower edge B.Stocking angle herein is powder particle material in natural heap
Conical surface sideline and horizontal line shape are formed by under cumuliformis state at an angle, when stacking material continues to increase, but the angle is still protected
When holding constant, constant angle at this time is stocking angle.The stocking angle of identical component powder can be measured by experiment, by upper
The lower position for adjusting adjustable plate 8, thus it is possible to vary the size at angle makes the stocking angle less than powder, can prevent powder automatically from
Meal outlet flows out the error for leading to powder outlet quantity.
To prevent the vacuum degree at meal outlet is excessively high from influencing powder, the side wall upper edge powder of the powder tank bottom of meal outlet opposite direction
7 length direction of slot is equipped with several aeration valves 6.It, can to the appropriate tonifying Qi of vacuum area near the meal outlet of powder tank bottom in the structure
To prevent the vacuum area vacuum degree excessively high, and powder outlet quantity can be accurately controlled by adjusting air compensation.
The jet pipeline of the present embodiment includes air inlet pipe 1, pressure maintaining valve 2, and the outlet end of pressure maintaining valve 2 connects several conduits 3, institute
The length direction that conduit is stated along powder tank is uniformly distributed, and the outlet end of each conduit 3 is connected to jet pipe chamber 5, for ease of jet pipe chamber and conduit
It is connected, jet pipe chamber 5 is fixed on 7 bottom of powder tank, and the inlet end of jet pipe chamber 5 is socketed each conduit 3 by the sealing of interconnecting piece 4, leads
Pipe 3 and the flat tube section that the linkage section that jet pipe chamber 5 is socketed is laid out in parallel, as shown in Figure 5；Jet pipe chamber 5 is equipped with along jet direction and receives
The end of the jet slit of contracting, the jet slit connects puff prot, and the section of puff prot is put greatly in loud-speaker shape.When work, gas
Enter jet pipe chamber 5 from conduit 3, air-flow enters powder diffusion region along jet pipe chamber 5 through jet slit, then enlarged jet oral area
13, the change dramatically of flow area makes high-speed flow take away the air of surrounding, forms the vacuum of the powder tank bottom of top, and makes
The powder of the vacuum area is siphoned away with air-flow, into diffusion region.
For ease of the separation that diffusion region solid powder and gas are stopped, feed opening be located at the downside wall of powder diffusion region 13 with it is separate
At the angle of cut of puff prot offside side wall, the downside wall close to feed opening is equipped with acclivitous guide section 13A, exhaust outlet and blanking
The lateral wall in the areas powder San Kuo 13 between mouth 14 tilts 5-10o inwardly from top to bottom.Into diffusion region powder forward
In flow process, under the guide effect of guide section 13A, rush on opposite side wall, under the effect of gravity, solid powder is under
Material mouth falls to workbench 12, and gas is discharged from exhaust outlet after the filtering of filter screen 15.
Jet pipe chamber 5 is arranged on the downside of meal outlet, and sprays for the gas conveying-type increasing material manufacturing power spreading device of the utility model
The jet direction of tube chamber 5 is vertical with powder direction is gone out, and the powder of whereabouts is blowed to powder diffusion region 13, meanwhile, air-flow row jet pipe chamber
Effect sprayed from puff prot, the air of surrounding taken away, made near the powder tank bottom meal outlet above puff prot by high-speed flow
Vacuum area is formed, and the powder in the vacuum area is siphoned away with Jet Stream into powder diffusion region 13, is spread in powder
Area, powder fall and under the effect of gravity from 14 blankings of feed opening to workbench 12, carry out powdering, Jet Stream after filtering from
Exhaust outlet is discharged, to realize the shunting discharge of powder and air-flow.The power spreading device of the utility model changes in the prior art
The mode for vibrating blanking realizes the whereabouts of powdering powder stream by the swabbing action of air-flow, can by the adjusting of Jet Stream flow
To control the speed of powder whereabouts, to realize uniform powdering blanking, and reduce the motion noise of Powder spreader.
Claims (8)
1. a kind of gas conveying-type increasing material manufacturing power spreading device, including powder tank, the both side ends of the powder tank are connected with slide plate, institute
It states powder tank lower parallel and is equipped with two rows of guide rails being connect with slide plate slides, the powder tank lower part goes out equipped with long and narrow along its length
Powder mouth, which is characterized in that powder diffusion region, the powder diffusion region side vertical with powder direction is gone out are equipped on the downside of the meal outlet
To equipped with jet pipe chamber, the jet pipe chamber and jet piping connection, the puff prot length of the jet pipe chamber and the length phase of meal outlet
Together, it is equipped with feed opening on the downside of the powder diffusion region of the puff prot opposite direction, corresponding powder diffusion region above the feed opening
Roof is equipped with exhaust outlet, and the exhaust oral area is equipped with filter screen.
2. gas conveying-type increasing material manufacturing power spreading device according to claim 1, which is characterized in that powder tank lower part edge
The section parallel with end face is equipped with the bottom of rectangular contraction, and the meal outlet is arranged on the rectangular side wall for shrinking bottom, described
Side wall above meal outlet is equipped with the adjustable plate for adjusting discharge port size.
3. gas conveying-type increasing material manufacturing power spreading device according to claim 2, which is characterized in that the meal outlet is opposite
Powder tank bottom side wall upper edge powder tank length direction be equipped with several aeration valves.
4. gas conveying-type increasing material manufacturing power spreading device according to claim 2, which is characterized in that the jet pipeline packet
Air inlet pipe, pressure maintaining valve are included, the outlet end of the pressure maintaining valve connects several conduits, and the conduit is uniformly distributed along the length direction of powder tank,
The outlet end of each conduit is connected to jet pipe chamber, and the jet pipe chamber is equipped with the jet slit shunk along jet direction, and the jet is narrow
The end of seam connects puff prot, and the section of the puff prot is put greatly in loud-speaker shape.
5. gas conveying-type increasing material manufacturing power spreading device according to claim 2, which is characterized in that the feed opening is located at
The downside wall of powder diffusion region is equipped with close to the downside wall of feed opening and tilts upwards at the angle of cut far from puff prot offside side wall
Guide section, the lateral wall in the areas powder San Kuo between the exhaust outlet and feed opening tilts 5-10o inwardly from top to bottom.
6. gas conveying-type increasing material manufacturing power spreading device according to claim 2, which is characterized in that above the exhaust outlet
Equipped with muffler.
7. gas conveying-type increasing material manufacturing power spreading device according to claim 2, which is characterized in that the adjustable plate lower part
Equipped with to the backgauge end of meal outlet inner inclination, the angle of line between the end and meal outlet lower edge at the backgauge end
Less than the stocking angle of powder.
8. gas conveying-type increasing material manufacturing power spreading device according to claim 2, which is characterized in that the jet pipe chamber is fixed
In powder tank bottom, the inlet end of the jet pipe chamber is socketed each conduit, the conduit and the socket of jet pipe chamber by interconnecting piece sealing
Linkage section is the flat tube section of laid out in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721102865.4U CN207630520U (en) | 2017-08-31 | 2017-08-31 | A kind of gas conveying-type increasing material manufacturing power spreading device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721102865.4U CN207630520U (en) | 2017-08-31 | 2017-08-31 | A kind of gas conveying-type increasing material manufacturing power spreading device |
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| Publication Number | Publication Date |
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| CN207630520U true CN207630520U (en) | 2018-07-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471634A (en) * | 2017-08-31 | 2017-12-15 | 宁夏共享模具有限公司 | A kind of gas conveying-type increasing material manufacturing power spreading device |
-
2017
- 2017-08-31 CN CN201721102865.4U patent/CN207630520U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471634A (en) * | 2017-08-31 | 2017-12-15 | 宁夏共享模具有限公司 | A kind of gas conveying-type increasing material manufacturing power spreading device |
| CN107471634B (en) * | 2017-08-31 | 2023-10-20 | 共享智能装备有限公司 | Powder paving device for gas conveying type additive manufacturing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 750000 the Ningxia Hui Autonomous Region Yinchuan economic and Technological Development Zone ningshuo South Street No. 298 Patentee after: Shared Intelligent Equipment Co., Ltd. Address before: 750000 the Ningxia Hui Autonomous Region Yinchuan economic and Technological Development Zone ningshuo South Street No. 298 Patentee before: Ningxia Kocel Pattern Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |