CN108819234B - Powder laying box assembly for selective laser melting - Google Patents
Powder laying box assembly for selective laser melting Download PDFInfo
- Publication number
- CN108819234B CN108819234B CN201810625717.3A CN201810625717A CN108819234B CN 108819234 B CN108819234 B CN 108819234B CN 201810625717 A CN201810625717 A CN 201810625717A CN 108819234 B CN108819234 B CN 108819234B
- Authority
- CN
- China
- Prior art keywords
- powder
- driving rod
- box
- filter screen
- turning plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000843 powder Substances 0.000 title claims abstract description 162
- 238000002844 melting Methods 0.000 title claims abstract description 14
- 230000008018 melting Effects 0.000 title claims abstract description 14
- 230000007480 spreading Effects 0.000 claims abstract description 46
- 238000003892 spreading Methods 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 13
- 238000007790 scraping Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000007306 turnover Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004372 laser cladding Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000110 selective laser sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/70—Recycling
- B22F10/73—Recycling of powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/60—Planarisation devices; Compression devices
- B22F12/67—Blades
-
- 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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/214—Doctor blades
-
- 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
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/314—Preparation
-
- 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
- B29C64/357—Recycling
-
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a powder laying box assembly for selective laser melting, which comprises a powder laying box with a strip-shaped blanking port at the bottom and a scraper fixed at the bottom of the powder laying box, the powder laying box is internally provided with a middle filter screen plate which is used for dividing the inner cavity of the powder laying box into an upper cavity and a lower cavity, the upper cavity is internally provided with a stirring mechanism, the stirring mechanism comprises a powder driving rod, the outer circle of which is arranged along the length direction of the powder laying box is provided with a helical blade, the powder driving rod comprises a left powder driving rod and a right powder driving rod which are arranged in parallel along the width direction of the powder spreading box, the spiral direction of a spiral blade positioned on the left powder driving rod is opposite to the spiral direction of a spiral blade positioned on the right powder driving rod, and the powder driving rod also comprises a servo motor used for driving the left powder driving rod and the right powder driving rod, an output shaft of the servo motor is in transmission fit with the left powder driving rod and the right powder driving rod through a transmission chain; the powder in the upper cavity is filtered by the middle filter screen plate after being stirred and then enters the lower cavity and further falls to the strip-shaped blanking port.
Description
Technical Field
The invention relates to the field, in particular to a powder laying box assembly for selective laser melting.
Background
The rapid prototyping technology is a novel manufacturing technology developed in the 80 s of the 20 th century, and the technology is a process of slicing a three-dimensional model of a part, stacking the three-dimensional model layer by layer and finally superposing the three-dimensional model into a three-dimensional solid part. The rapid prototyping technology breaks through the conventional idea of deformation prototyping and removal prototyping, and realizes the idea of 'net prototyping'. Rapid prototyping is mainly of 3 types: selective laser sintering technique SLS), laser cladding manufacturing technique (LENS), selective laser melting technique (SLM). The parts prepared by the selective laser melting technology have the advantages of high density, high precision, good performance and good stability in the processing process, and are concerned at home and abroad. Currently, SLM technology research is mainly focused on europe, such as germany, belgium, uk, etc. These countries have entered the commercialization phase in SLM device research. Asia is mainly focused in singapore, japan, etc.; in the prior art, generally, the lifting of a control platform is used for realizing the layered sequential descending of a powder layer, and the topmost layer is used as the next processing layer; the area of the platform is certain, the area corresponds to the bottom area of the processing area, and for the processed workpieces of different sizes, the volume of the processing area is unchanged, when small-size workpieces are processed, the space of the processing area still needs to be filled with powder, the processed raw materials are wasted in pollution, the raw materials are complicated in recovery and treatment, meanwhile, when large-size workpieces are processed, in-situ processing cannot be achieved through the technology, the processed workpieces need to be transported to a use place, the processing efficiency is low, the limitation is large, and the application range is limited.
Therefore, in order to solve the above problems, a selective laser melting system is needed, which can effectively filter powder impurities, ensure powder paving quality and has good filtering effect; and the structure is simple and light, and the lifting driving is convenient.
Disclosure of Invention
In view of the above, the present invention aims to overcome the defects in the prior art, and provides a powder laying box assembly for selective laser melting, which can realize in-situ processing and manufacturing, effectively filter powder impurities, ensure powder laying quality, and has a good filtering effect; and the structure is simple and light, and the lifting driving is convenient.
The powder laying box assembly for selective laser melting comprises a powder laying box and a scraper, wherein the bottom of the powder laying box is provided with a strip-shaped blanking port, the scraper is fixed at the bottom of the powder laying box, the top cover of the powder laying box is an inclined filter screen-shaped cover plate, and the filter screen-shaped cover plate is used for roughly filtering powder entering the powder laying box; the powder spreading box is internally provided with an intermediate filter screen plate used for separating the inner cavity of the powder spreading box into an upper cavity and a lower cavity, the upper cavity is internally provided with a stirring mechanism, and powder in the upper cavity enters the lower cavity after being filtered through the intermediate filter screen plate after being stirred and further falls to the strip-shaped blanking port.
Further, rabbling mechanism includes that the excircle that arranges along spreading powder box length direction is provided with helical blade's powder actuating lever, the powder actuating lever includes along spreading left powder actuating lever and the right powder actuating lever that powder box width direction set up side by side, and the helical blade who is located left powder actuating lever revolves to opposite with the helical blade who is located right powder actuating lever, still including the servo motor who is used for driving left powder actuating lever and right powder actuating lever, servo motor's output shaft passes through driving chain and left powder actuating lever and right powder actuating lever transmission cooperation. .
Furthermore, the number of the middle filter screen plates is two, and the two filter screen plates are arranged in a detachable mode in parallel along the vertical direction.
Further, be provided with the horizontal slot that is used for the detachable installation of middle filter plate in the shop powder box, middle filter plate passes through horizontal slot grafting and installs in shop powder box.
Further, the powder scraping knife divides the powder falling opening into a left powder falling opening and a right powder falling opening, and a sealing device used for selectively sealing the left powder falling opening or the right powder falling opening is arranged at the upper end of the powder falling opening.
Furthermore, the sealing device comprises a turning plate hinged to the top end of the powder scraping knife and a turning plate driving motor used for driving the turning plate to rotate, and the turning plate driving motor is used for driving the turning plate to rotate forwards or reversely to seal the right powder falling port or the left powder falling port through the turning plate.
Furthermore, the sealing device comprises a turning plate hinged to the top end of the powder scraping knife and a turning plate driving motor used for driving the turning plate to rotate, and the turning plate driving motor is used for driving the turning plate to rotate forwards or reversely to seal the right powder falling port or the left powder falling port through the turning plate.
Furthermore, turn over the board top and still be provided with the discharge roller in order to wind self central axis pivoted mode, the excircle of the discharge roller and two horizontal inside wall clearances of shop powder box set up and respectively with left discharge gate and the left discharge gap and the right discharge gap that right discharge gate corresponds, still including being used for the drive and controlling the discharge roller driving motor of corotation speed or reversal speed.
The invention has the beneficial effects that: the powder spreading box assembly for selective laser melting disclosed by the invention has the advantages that the powder spreading box is internally provided with the intermediate filter screen plate for separating the inner cavity of the powder spreading box into the upper cavity and the lower cavity, the upper cavity is internally provided with the stirring mechanism, the cleanliness of powder is greatly improved in the process of recovering excess materials, and the high processing quality is ensured.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic structural view of a powder laying box according to the present invention;
FIG. 2 is a schematic structural view of a stirring mechanism according to the present invention;
FIG. 3 is a side view of the recovery device of the present invention;
FIG. 4 is a top view of the recycling apparatus of the present invention.
Detailed Description
As shown in the drawings, in the powder spreading box assembly for selective laser melting in this embodiment, the powder spreading device includes a powder spreading box 31 having a powder dropping port at the bottom thereof and a powder scraping knife 32 disposed at a transverse middle position of the powder dropping port, the powder scraping knife divides the powder dropping port into a left powder dropping port 34 and a right powder dropping port 35, and a sealing device for selectively sealing the left powder dropping port 34 or the right powder dropping port 35 is disposed at an upper end of the powder dropping port; the sealing device is controlled to be rotationally opened to form a left powder falling port or a right powder falling port, so that the powder spreading device can be used for realizing bidirectional powder spreading; the efficiency of shop's powder can be effectively improved, the powder fineness of shop is guaranteed, simple structure simultaneously, and the function is smooth and easy, and the fault rate is little.
In the embodiment, the sealing device comprises a turning plate 33 hinged to the top end of the powder scraping knife and a turning plate driving motor for driving the turning plate to rotate, and the turning plate driving motor is used for driving the turning plate to rotate forwards or reversely to seal the right powder falling port or the left powder falling port; the structure is simple and compact, and the realization is easy; the turnover plate is a long strip-shaped plate, certainly, a sealing strip can be arranged on the rotating outer side edge of the turnover plate, and the sealing strip and the inner side wall of the powder spreading box form sealing after the turnover plate rotates, so that the turnover plate is simple in structure and convenient to control.
In this embodiment, a discharging roller 36 is further arranged above the turning plate in a manner of rotating around the central axis of the turning plate, a left discharging gap and a right discharging gap are arranged between the outer circle of the discharging roller and two transverse inner side walls of the powder spreading box and respectively correspond to the left discharging port and the right discharging port, and the powder spreading device further comprises a discharging roller driving motor for driving and controlling the forward rotation speed or the reverse rotation speed of the discharging roller; the transverse section of the powder laying box comprises an upper rectangular section, a middle inverted trapezoidal section and a lower rectangular section from top to bottom, the width of the upper rectangular section is larger than that of the lower rectangular section, the middle inverted trapezoidal section is an isosceles trapezoid with an upper bottom larger than a lower bottom, the discharging roller 36 is arranged at the upper end of the lower rectangular section, the turning plate is arranged at the lower end of the lower rectangular section, and the bottom of the powder scraping knife 32 penetrates out of the lower rectangular section.
In the embodiment, the powder spreading box is internally provided with the stirring mechanism which is used for enabling the powder to form bidirectional circulating flow in the powder spreading box along the length direction of the powder spreading box, so that the powder in the powder spreading device can be uniformly stirred, the smooth powder spreading is ensured, and the quick and accurate powder spreading is facilitated; the structure is simple and compact, and the integral lifting is facilitated; the stirring mechanism is arranged in the rectangular section on the powder laying box;
the stirring mechanism comprises a powder driving rod, a servo motor and a stirring mechanism, wherein the powder driving rod is provided with a helical blade 39 along the excircle arranged in the length direction of the powder spreading box, the powder driving rod comprises a left powder driving rod 37 and a right powder driving rod 38 which are arranged in parallel along the width direction of the powder spreading box, the helical blade positioned on the left powder driving rod and the helical blade positioned on the right powder driving rod have opposite rotation directions, the servo motor is used for driving the left powder driving rod and the right powder driving rod, and the output shaft of the servo motor is in transmission fit with the left powder driving rod and the right powder driving rod through a transmission chain; is beneficial to forming effective flow in a small space and ensures uniform stirring.
In the embodiment, an intermediate filter screen plate for dividing an inner cavity of the spreading box into an upper cavity and a lower cavity is arranged in the spreading box, a stirring mechanism is arranged in the upper cavity, and powder in the upper cavity is stirred, filtered by the intermediate filter screen plate, enters the lower cavity and further falls to the strip-shaped blanking port; through be provided with in the stone box and be used for separating into the middle filter screen board of epicoele and lower chamber with the stone box inner chamber, be provided with rabbling mechanism in the epicoele, there is the process that the clout was retrieved, improves the cleanliness factor of powder greatly, guarantees that the processing quality is high.
In this embodiment, the number of the middle filter screen plates is two (including an upper middle filter screen plate 40 and a lower middle filter screen plate 41), and the two filter screen plates are vertically arranged in parallel in a detachable manner; the middle filter screen plate of the flanging is replaced on line, and only one middle filter screen plate is used during normal use.
In the embodiment, a horizontal slot for detachably mounting an intermediate filter screen plate is arranged in the material spreading box, and the intermediate filter screen plate is inserted and mounted in the material spreading box through the horizontal slot; the middle filter screen plate is convenient to assemble and disassemble, and the operation efficiency is improved.
In the embodiment, the device also comprises a residual material recovery device which is used for recovering residual materials scattered by the spreading device into the spreading device; the metal powder excess material is effectively recycled, the material waste is avoided, the material reciprocating use is facilitated, the system volume is effectively reduced, the movement is convenient, and the manufacturing cost is saved.
In this embodiment, the excess material recycling device comprises an annular suction pipe 43 fixedly sleeved at the bottom of the processed workpiece 42 and a suction pump 44 with a suction port communicated with an inner cavity of the annular suction pipe, and an outlet of the suction pump 44 is matched with the spreading device through a pipeline and used for conveying excess material to the spreading device for reuse; the side wall of the annular suction pipe is provided with a suction hole; carry out abundant recovery to the clout, the annular suction tube does benefit to and sucks the powder that the work piece lateral wall dropped, realizes recycle, avoids the powder of retrieving to be polluted simultaneously.
In this embodiment, a suction tip tube 45 is communicated with the suction hole, and the suction tip tube is a flexible tube; the suction hole sets up for a plurality of and one-to-one with the suction front end pipe, and suction hole sets up along annular suction tube circumference with the suction front end pipe, sets up to pliability pipe through with the suction front end pipe, does benefit to the shape according to the work piece and conforms the suction mouth position of adjusting each suction front end pipe, guarantees that suction efficiency is high.
In this embodiment, the top cover of the powder spreading box is an inclined filter screen-shaped cover plate, and the filter screen-shaped cover plate is used for rough filtering of powder entering the powder spreading box; the export of suction pump 44 sprays the inclined plane that direction level set up and just to filter screen form apron, realizes quick filtration, and the jet force of suction pump export can avoid impurity to pile up on filter screen form apron and cause the shutoff simultaneously.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (3)
1. A powder box assembly for selective laser melting, comprising: the powder spreading box comprises a powder spreading box with a strip-shaped blanking port at the bottom and a scraper fixed at the bottom of the powder spreading box, wherein a top cover of the powder spreading box is an inclined filter screen-shaped cover plate which is used for roughly filtering powder entering the powder spreading box; the powder spreading box is internally provided with an intermediate filter screen plate used for dividing the inner cavity of the powder spreading box into an upper cavity and a lower cavity, the upper cavity is internally provided with a stirring mechanism, and powder in the upper cavity is filtered by the intermediate filter screen plate after being stirred and then enters the lower cavity and further falls to the strip-shaped blanking port; the stirring mechanism comprises a powder driving rod, a servo motor and a stirring mechanism, wherein spiral blades are arranged on the outer circle of the powder spreading box in the length direction, the powder driving rod comprises a left powder driving rod and a right powder driving rod which are arranged in parallel in the width direction of the powder spreading box, the spiral direction of the spiral blade on the left powder driving rod is opposite to that of the spiral blade on the right powder driving rod, the servo motor is used for driving the left powder driving rod and the right powder driving rod, and the output shaft of the servo motor is in transmission fit with the left powder driving rod and the right powder driving rod through a transmission chain; the stirring mechanism comprises a powder driving rod, wherein spiral blades are arranged on the outer circle of the powder driving rod along the length direction of the powder laying box; the two middle filter screen plates are arranged in parallel along the vertical direction and are detachably arranged; a horizontal slot for detachably mounting the intermediate filter screen plate is formed in the powder spreading box, and the intermediate filter screen plate is inserted and mounted in the powder spreading box through the horizontal slot; still include and scrape whitewashed sword, scrape whitewashed sword and separate into left whitewashed mouth and the right whitewashed mouth that falls with the whitewashed mouth that falls, the upper end that falls whitewashed mouth is provided with the closing device who is used for selectively sealing left whitewashed mouth or the right whitewashed mouth that falls.
2. A powder box assembly for selective laser melting as defined in claim 1, wherein: the sealing device comprises a turning plate hinged to the top end of the powder scraping knife and a turning plate driving motor used for driving the turning plate to rotate, and the turning plate driving motor is used for driving the turning plate to rotate forward or reversely to seal the right powder falling port or the left powder falling port through the turning plate.
3. A powder box assembly for selective laser melting as defined in claim 2, wherein: the turning plate is characterized in that a discharging roller is further arranged above the turning plate in a rotating mode around the central axis of the turning plate, the outer circle of the discharging roller and two transverse inner side walls of the powder spreading box are arranged in a clearance mode and respectively correspond to a left discharging gap and a right discharging gap of the left discharging port and the right discharging port, and the turning plate further comprises a discharging roller driving motor used for driving and controlling the forward rotation speed or the reverse rotation speed of the discharging roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810625717.3A CN108819234B (en) | 2018-06-18 | 2018-06-18 | Powder laying box assembly for selective laser melting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810625717.3A CN108819234B (en) | 2018-06-18 | 2018-06-18 | Powder laying box assembly for selective laser melting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108819234A CN108819234A (en) | 2018-11-16 |
| CN108819234B true CN108819234B (en) | 2021-07-23 |
Family
ID=64141423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810625717.3A Active CN108819234B (en) | 2018-06-18 | 2018-06-18 | Powder laying box assembly for selective laser melting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108819234B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6993492B1 (en) * | 2020-10-20 | 2022-01-13 | 株式会社ソディック | Laminated modeling equipment |
| CN112658288B (en) * | 2020-12-10 | 2022-08-30 | 嘉兴意动能源有限公司 | Base shaft type metal 3D printing device |
| CN112589125B (en) * | 2020-12-10 | 2022-08-30 | 嘉兴意动能源有限公司 | Base shaft type metal 3D printing equipment |
| CN113319295A (en) * | 2021-05-27 | 2021-08-31 | 哈尔滨理工大学 | Powder supply recovery assembly of selective laser sintering printing equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204122757U (en) * | 2014-10-27 | 2015-01-28 | 湖北工业大学 | A kind of powder automatic circulating system of laser 3D printer |
| CN104625062A (en) * | 2015-03-03 | 2015-05-20 | 重庆大学 | Reciprocating powder laying device for selective laser melting |
| CN205982991U (en) * | 2016-08-26 | 2017-02-22 | 广州市三横信息科技有限公司 | Toner cartridge |
| CN107584120A (en) * | 2017-10-26 | 2018-01-16 | 西安国宏天易智能科技有限公司 | A kind of selective laser fusing shapes single scraper two-way powder laying device and method |
-
2018
- 2018-06-18 CN CN201810625717.3A patent/CN108819234B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204122757U (en) * | 2014-10-27 | 2015-01-28 | 湖北工业大学 | A kind of powder automatic circulating system of laser 3D printer |
| CN104625062A (en) * | 2015-03-03 | 2015-05-20 | 重庆大学 | Reciprocating powder laying device for selective laser melting |
| CN205982991U (en) * | 2016-08-26 | 2017-02-22 | 广州市三横信息科技有限公司 | Toner cartridge |
| CN107584120A (en) * | 2017-10-26 | 2018-01-16 | 西安国宏天易智能科技有限公司 | A kind of selective laser fusing shapes single scraper two-way powder laying device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108819234A (en) | 2018-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108819234B (en) | Powder laying box assembly for selective laser melting | |
| CN104624394A (en) | Vertical type flat plate sedimentation centrifuge with automatic discharge function | |
| CN216419618U (en) | Anti-blocking structure of sand mill | |
| CN104923354A (en) | Novel iron ore breaking device | |
| CN208289523U (en) | A kind of waste treatment device of lathe | |
| CN110227293B (en) | Grating machine and method for efficiently removing garbage | |
| CN116174290A (en) | Sand grain screening equipment with screening function | |
| CN108941554B (en) | Laser melting forming machine with excess material recovery function | |
| CN210336544U (en) | Automatic feeding device of film blowing machine | |
| CN212236179U (en) | Energy-saving stirring machine | |
| CN211026528U (en) | SCR catalyst recovery system | |
| CN212856177U (en) | Sieving mechanism for construction waste treatment | |
| CN114985831A (en) | Cutting equipment for cast ingot shrinkage cavity machining and using method thereof | |
| CN211725971U (en) | Calcium carbonate breaker with dust collecting effect | |
| CN210649813U (en) | Cutting fluid discharge-free recycling system | |
| CN113976240A (en) | Feeding device for production of electric power coating | |
| CN108859107B (en) | Powder filtering type laser in-situ forming device | |
| CN108788149B (en) | Bidirectional paving laser processing system | |
| CN220590321U (en) | Building rubbish recovery unit with drainage function | |
| CN108723367B (en) | Selective laser melting system | |
| CN220111559U (en) | Rotary ore sand screening device | |
| CN210585811U (en) | Material grain dust collector | |
| CN213967558U (en) | Grit screening installation is used in production of environmental protection concrete | |
| CN212943936U (en) | Environment-friendly full-automatic engineering sand screening machine | |
| CN211566923U (en) | Novel inflation film manufacturing machine is used in shrink film blowing processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231206 Address after: 519085 4th floor, building B, No.8, Jinhong 3rd road, Tangjiawan Town, high tech Zone, Zhuhai City, Guangdong Province Patentee after: Zhuhai Rui Cai Electronic Technology Co.,Ltd. Address before: 402247 9-4, 401-3, Fuyun Avenue, Shuangfu street, Jiangjin District, Chongqing Patentee before: CHONGQING ENGUANG TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |