CN110193940A - Powder cleaning structure and powder removing method in a kind of increasing material manufacturing equipment - Google Patents
Powder cleaning structure and powder removing method in a kind of increasing material manufacturing equipment Download PDFInfo
- Publication number
- CN110193940A CN110193940A CN201910464803.5A CN201910464803A CN110193940A CN 110193940 A CN110193940 A CN 110193940A CN 201910464803 A CN201910464803 A CN 201910464803A CN 110193940 A CN110193940 A CN 110193940A
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- Prior art keywords
- powder
- substrate
- hole structure
- clear
- material manufacturing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/35—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention discloses powder cleaning structure and powder removing methods in a kind of increasing material manufacturing equipment, by presetting through-hole structure on substrate, make to form powder flow paths on substrate, preforming process supports on the substrate for offer through-hole structure, part to be formed is formed on processing support, removes processing support after the completion of part to be formed；Then the through-hole structure lower end of substrate is made to form negative pressure, powder on substrate is cleared up to through-hole structure, it is cleared up using the powder on the negative pressure completing substrate of through-hole structure lower end, during clear powder, it does not need substrate and workpiece transfer to dedicated powder cleaning equipment, it does not need to take out entire forming platform, structure is simple and convenient, in cleaning powder process, operator is avoided to contact with the direct of powder, powder is greatly reduced to the harmfulness of operator, improve the working efficiency of clear powder, through-hole structure lower end or clear powder channel are equipped with valve, it can prevent the powder leakage in print procedure.
Description
Technical field
The invention belongs to increases material manufacturing technology fields, and in particular to powder cleaning structure and clear in a kind of increasing material manufacturing equipment
Powder method.
Background technique
SLS/SLM is common forming technology in material increasing field.This technique passes through powdering, selective sintering/molten
Melt, successively shapes, finally obtain entire workpiece.When component shaping finishes, not only there is workpiece in formation cylinder, there are also a large amount of powder
End.In order to take out workpiece, subsequent treatment process (such as, wire cutting, go support, heat treatment) is carried out, needs first to clear up powder
End separates workpiece and powder.
Entire forming platform (is included substrate, workpiece usually after component shaping by existing SLS/SLM equipment
And powder etc.) ejected out of formation cylinder, the powder by manually using the tools such as brush, dust catcher, in cleaning forming chamber.Forming
Region is bigger, and Workpiece structure is more complicated, and the working strength and operating time of clear powder are bigger.In addition, in order to avoid powder via
The positions such as skin, respiratory tract, eyes enter human body, endanger the health of operator, must be requested that operator dresses antistatic
The safety protective tools such as pullover work clothes, protective face mask, rubber gloves, anti-static shoes.And the use of safety protective tools, it can not
It avoids will lead to working efficiency reduction, while also reducing the operating experience of equipment.
It usually can also be by substrate and workpiece in order to reduce the time that workpiece occupies equipment for large-scale or ultra-large workpiece
It transports at dedicated place or special equipment, carries out further clear powder work.During workpiece transition, it is possible to can be because knocking
Touch the damage for causing equipment or Forming Workpiece.
Summary of the invention
It is existing to overcome the purpose of the present invention is to provide powder cleaning structure and powder removing method in a kind of increasing material manufacturing equipment
There is the deficiency of technology.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
Powder clears up structure, including substrate in a kind of increasing material manufacturing equipment, offers through-hole structure, substrate lower end on substrate
Clear powder channel equipped with connection through-hole structure, through-hole structure lower end or clear powder channel are equipped with valve.
Further, clear powder channel is connected to negative pressure device.
Further, base plate bottom offers the clear powder tank of connection through-hole structure, and the clear powder tank of base plate bottom passes through cover board
Sealing, clear powder channel are opened on cover board, and clear powder channel is connected to each through-hole structure by clear powder tank, and clear powder channel is equipped with envelope
Valve closing.
Further, cover board is fixedly connected with substrate by screw.
Further, base plate bottom offers the clear powder tank of connection through-hole structure, and the through-hole structure lower end of substrate is equipped with valve
Valve, flap are hinged in the clear powder tank of substrate lower end.
Further, flap and substrate hinged place are equipped with torsional spring.
Powder removing method in a kind of increasing material manufacturing equipment, comprising the following steps:
Step 1) presets through-hole structure on substrate, and preforming process supports on the substrate for offer through-hole structure,
Part to be formed is formed on processing support, removes processing support after the completion of part to be formed；
Step 2) makes the through-hole structure lower end of substrate form negative pressure, the powder on substrate is cleared up to through-hole structure, benefit
It is cleared up with the powder on the negative pressure completing substrate of through-hole structure lower end.
Further, through-hole structure is preset on substrate, and logical in the clear powder that substrate lower end opens up connection through-hole structure
Road, is arranged valve on through-hole structure lower end or clear powder channel, and clear powder channel is connected to negative pressure device.
Further, processing support uses tree-form artistic supporter, and tree-form artistic supporter lower end and substrate are not formed logical
Pore structure surface combines, and tree-form artistic supporter upper end is then connected with Forming Workpiece.
Further, processing support supports workpiece using arch processing support body.
Compared with prior art, the invention has the following beneficial technical effects:
Powder clears up structure, including substrate in a kind of increasing material manufacturing equipment of the present invention, by offering through-hole on substrate
Structure, substrate lower end are equipped with the clear powder channel of connection through-hole structure, make to form powder flow paths on substrate, be formed using substrate
Powder channel realize powder cleaning, do not need to take out entire forming platform, structure is simple and convenient, cleaning powder process
In, it avoids operator and is contacted with the direct of powder, greatly reduce powder to the harmfulness of operator, improve clear powder
Working efficiency, through-hole structure lower end or clear powder channel are equipped with valve, can prevent the powder leakage in print procedure.
Further, clear powder channel is connected to negative pressure device, is cleared up using negative pressure powder quick, improves cleaning speed.
Further, cover board is fixedly connected with substrate by screw, and structure is simple, clears up dimension convenient for the through-hole structure of substrate
It repairs.
Further, flap and substrate hinged place are equipped with torsional spring, it can be ensured that through-hole structure keeps closing in print procedure
Closed state prevents powder leakage.
Powder removing method in a kind of increasing material manufacturing equipment is offering through-hole structure by presetting through-hole structure on substrate
Substrate on preforming process support, form part to be formed on processing support, remove processing support after the completion of part to be formed；So
So that the through-hole structure lower end of substrate is formed negative pressure afterwards, the powder on substrate is cleared up to through-hole structure, using under through-hole structure
Powder on the negative pressure completing substrate at end is cleared up, and during clear powder, is not needed substrate and workpiece transfer is clear to dedicated powder
Manage equipment, and on-line automaticization may be implemented for whole process or semi-automatic handle can efficiently and easily cleaning work region
Powder improves equipment service efficiency, and the hot heat to substrate for increasing and generating when material processing can be reduced using processing support body
Deformation influences.
Detailed description of the invention
Fig. 1 is substrate schematic diagram of the present invention.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is substrate upper flap mounting structure schematic diagram.
Fig. 4 is tree-form artistic supporter schematic diagram.
Fig. 5 is arch processing support body schematic diagram.
In figure: 1- substrate；2- screw；3- cover board；5- arranges powder pipeline；6- clapper；7- Forming Workpiece；8- tree-form artistic
Support；9- arch processing support；10- through-hole structure.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
As shown in Figure 1, powder clears up structure in a kind of increasing material manufacturing equipment, including substrate 1 and processing support, on substrate 1
Through-hole structure 10 is offered, 1 lower end of substrate is equipped with the clear powder channel 5 of connection through-hole structure, through-hole structure lower end or clear powder channel 5
It is equipped with valve, processing support is placed in 1 upper end of substrate, and processing support is as molded part matrix；Clear powder channel 5 is by negative pressure
Device is connected to powder collection device, generates negative pressure in clear powder channel 5 for making；Valve includes being set to through-hole structure lower end
Flap 6 and the closing valve 4 being set on clear powder channel 5；
Specifically, as shown in Fig. 2, 1 bottom of substrate offers the clear powder tank of connection through-hole structure, the clear powder of 1 bottom of substrate
Slot is sealed by cover board 3；Cover board 3 is fixedly connected with substrate 1 by screw 2, and clear powder channel 5 is opened on cover board 3, clear powder channel
5 are connected to each through-hole structure by clear powder tank, and closing valve is set on clear powder channel 5；In the component shaping stage, closing valve is to close
It closes, avoids the powder in forming process from entering clear powder channel, powder bed is caused to collapse, workpiece cancels；After component shaping,
It closes valve 4 to open, is to form negative pressure in clear powder channel using the airborne form of negative pressure, by powder out of formation cylinder, via above-mentioned
Prefabricated hole and lateral trench → row's powder pipeline on channel → substrate between processing support body, finally by the powder in formation cylinder
End is transferred in powder collection device.
As shown in figure 3,1 bottom of substrate offers the clear powder tank of connection through-hole structure, the through-hole structure lower end of substrate 1 is equipped with
Flap 6, flap 6 are hinged in the clear powder tank of 1 lower end of substrate；Flap 6 and 1 hinged place of substrate are equipped with torsional spring, make flap 6 and substrate
1 through-hole structure remains off；Before starting powdering, positive air pressure is first applied by lower section in clear powder channel, cooperates valve
Valve 6 and the torsional spring of 1 hinged place of substrate hold up flap 6 upwards, it is made tightly to seal the hole on substrate；Gas is blocked to act on
Pressure on flap 6 should be greater than the weight of 6 top powder of flap；After component shaping, aforementioned positive air pressure is changed to negative
To air pressure, using the forms such as negative pressure is airborne, by powder out of formation cylinder, via channel → base between processing support body above-mentioned
Prefabricated hole and lateral trench → row's powder pipeline on plate, finally by the powder delivery in formation cylinder into powder collection device.
The availability of powder can be improved in the embodiment.
Powder removing method in a kind of increasing material manufacturing equipment, comprising the following steps:
Step 1) presets through-hole structure on substrate, and preforming process supports on the substrate for offer through-hole structure,
Part to be formed is formed on processing support, removes processing support after the completion of part to be formed；
Step 2) makes the through-hole structure lower end of substrate form negative pressure, the powder on substrate is cleared up to through-hole structure, benefit
It is cleared up with the powder on the negative pressure completing substrate of through-hole structure lower end.
Through-hole structure is offered on substrate, and powder is allow to flow out shaped region by hole；
Before Forming Workpiece, one group of processing support body is shaped on substrate first, with technique supporter come connecting substrate
With the workpiece that need to actually shape, it is possible to reduce the thermal energy that generates is to the influence of thermal deformation of substrate when increasing material processing, while can increase
The channel that big powder is flowed out from formation cylinder bottom；
As shown in figure 4, processing support uses tree-form artistic supporter, tree-form artistic supporter lower end and substrate are not formed logical
Pore structure surface combines, and tree-form artistic supporter upper end is then connected with Forming Workpiece；Sky between each processing support body unit
Between, the as channel flowed out out of formation cylinder of powder.
As shown in figure 5, processing support can also support workpiece using arch processing support body.Arch support body carries energy
Power is strong, and structure is simple, and slice file is relatively small, is suitable for annular workpieces.
Claims (10)
1. powder clears up structure in a kind of increasing material manufacturing equipment, which is characterized in that including substrate (1), offered on substrate (1) logical
Pore structure, substrate (1) lower end are equipped with the clear powder channel (5) of connection through-hole structure, set on through-hole structure lower end or clear powder channel (5)
There is valve.
2. powder clears up structure in a kind of increasing material manufacturing equipment according to claim 1, which is characterized in that clear powder channel
(5) it is connected to negative pressure device.
3. powder clears up structure in a kind of increasing material manufacturing equipment according to claim 1, which is characterized in that substrate (1) bottom
Portion offers the clear powder tank of connection through-hole structure, and the clear powder tank of substrate (1) bottom is sealed by cover board (3), and clear powder channel (5) is opened
On cover board (3), clear powder channel (5) is connected to each through-hole structure by clear powder tank, and clear powder channel (5) is equipped with closing valve
(4)。
4. in a kind of increasing material manufacturing equipment according to claim 3 powder clear up structure, which is characterized in that cover board (3) with
Substrate (1) is fixedly connected by screw (2).
5. powder clears up structure in a kind of increasing material manufacturing equipment according to claim 1, which is characterized in that substrate (1) bottom
Portion offers the clear powder tank of connection through-hole structure, and the through-hole structure lower end of substrate (1) is equipped with flap (6), and flap (6) is hinged on base
In the clear powder tank of plate (1) lower end.
6. in a kind of increasing material manufacturing equipment according to claim 5 powder clear up structure, which is characterized in that flap (6) with
Substrate (1) hinged place is equipped with torsional spring.
7. powder removing method in a kind of increasing material manufacturing equipment, which comprises the following steps:
Step 1) presets through-hole structure on substrate, and preforming process supports on the substrate for offer through-hole structure, in technique
Part to be formed is formed in support, removes processing support after the completion of part to be formed；
Step 2) makes the through-hole structure lower end of substrate form negative pressure, and the powder on substrate is cleared up to through-hole structure, using logical
Powder cleaning on the negative pressure completing substrate of pore structure lower end.
8. powder removing method in a kind of increasing material manufacturing equipment according to claim 7, which is characterized in that preset on substrate logical
Pore structure, and the clear powder channel of connection through-hole structure is opened up in substrate lower end, it is set on through-hole structure lower end or clear powder channel
Valve is set, clear powder channel is connected to negative pressure device.
9. powder removing method in a kind of increasing material manufacturing equipment according to claim 7, which is characterized in that processing support is using tree
Shape processing support body, tree-form artistic supporter lower end is in conjunction with the not formed through-hole structure surface of substrate, on tree-form artistic supporter
End is then connected with Forming Workpiece.
10. powder removing method in a kind of increasing material manufacturing equipment according to claim 7, which is characterized in that processing support uses
Arch processing support body supports workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910464803.5A CN110193940A (en) | 2019-05-30 | 2019-05-30 | Powder cleaning structure and powder removing method in a kind of increasing material manufacturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910464803.5A CN110193940A (en) | 2019-05-30 | 2019-05-30 | Powder cleaning structure and powder removing method in a kind of increasing material manufacturing equipment |
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| CN110193940A true CN110193940A (en) | 2019-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910464803.5A Pending CN110193940A (en) | 2019-05-30 | 2019-05-30 | Powder cleaning structure and powder removing method in a kind of increasing material manufacturing equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111408717A (en) * | 2020-01-18 | 2020-07-14 | 西安嘉业航空科技有限公司 | 3D printing processing method of blind hole cavity structure part convenient for powder cleaning treatment |
| CN112570715A (en) * | 2019-09-30 | 2021-03-30 | 上海微创医疗器械（集团）有限公司 | Structural member and processing method thereof |
| WO2021061167A1 (en) * | 2019-09-25 | 2021-04-01 | Hewlett-Packard Development Company, L.P. | Object cleaning |
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| WO2021061167A1 (en) * | 2019-09-25 | 2021-04-01 | Hewlett-Packard Development Company, L.P. | Object cleaning |
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Application publication date: 20190903 |
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| RJ01 | Rejection of invention patent application after publication |