CN115446332A - Powder paving vehicle for selective laser melting equipment - Google Patents
Powder paving vehicle for selective laser melting equipment Download PDFInfo
- Publication number
- CN115446332A CN115446332A CN202211199622.2A CN202211199622A CN115446332A CN 115446332 A CN115446332 A CN 115446332A CN 202211199622 A CN202211199622 A CN 202211199622A CN 115446332 A CN115446332 A CN 115446332A
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- powder
- scraper
- box
- scraping
- storage box
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- 239000000843 powder Substances 0.000 title claims abstract description 238
- 238000002844 melting Methods 0.000 title claims abstract description 20
- 230000008018 melting Effects 0.000 title claims abstract description 20
- 238000003860 storage Methods 0.000 claims abstract description 118
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 20
- 230000007480 spreading Effects 0.000 claims abstract description 17
- 238000003892 spreading Methods 0.000 claims abstract description 17
- 238000007790 scraping Methods 0.000 claims description 36
- 238000007599 discharging Methods 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 10
- 238000007639 printing Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005415 magnetization Effects 0.000 abstract description 3
- 230000002457 bidirectional effect Effects 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- 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
- B22F12/50—Means for feeding of material, e.g. heads
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- 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
- 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
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention discloses a powder spreading vehicle for selective laser melting equipment, which comprises a scraper frame, a scraper and a powder storage box, wherein the scraper is arranged on the bottom surface of the scraper frame; according to the powder paving vehicle for the selective laser melting equipment, the powder storage box is independently arranged on the side surface of the scraper frame, so that the sealing property of the powder storage box is improved; the scraper is arranged at the bottom of the scraper frame, so that the scraper and the powder storage box are separated, the magnetization of a printing material is avoided, and the printing effect is effectively improved; the powder carrying scraper is simple in overall structure, the metal powder of the printing material is less in contact with the scraper shaft when the powder carrying scraper is used, the powder carrying scraper is good in sealing performance and easy to machine and manufacture, the manufacturing cost is effectively reduced, and the overall economy is improved.
Description
Technical Field
The invention belongs to the technical field of 3D printing equipment, and relates to a powder paving vehicle for selective laser melting equipment.
Background
The large-scale selective laser melting equipment is often selected for use two-way powder spreading scrapers for improving printing efficiency, and because the two-way powder spreading scrapers need to carry powder motion to carry out first-pass powder spreading after receiving metal powder, the traditional roller type powder unloading scrapers and the collision plate type powder unloading scrapers have the hidden danger of powder omission in the scrapers in the powder carrying and powder spreading process, and the quality of powder spreading surfaces is seriously influenced. Meanwhile, the roller type powder discharging scraper is easy to bring powder into magnetism due to repeated friction between the roller and the metal powder in the roller box, so that the printing effect of the metal powder is influenced; in addition, if the scraper with the structure meets the relative sealing requirement, the material and processing difficulty of required parts are high, and the manufacturing cost of the scraper is high.
In order to solve the problems, a powder paving vehicle with a simple structure and good sealing performance needs to be designed.
Disclosure of Invention
In view of the above, the invention discloses a powder spreading vehicle for selective laser melting equipment, wherein a powder storage box is arranged on the side surface of a scraper frame, a scraper is arranged at the bottom of the scraper frame, the independent powder storage box has higher sealing performance, and the separation of the scraper and the powder storage box avoids the magnetization of printing materials and effectively improves the printing effect.
The utility model provides a shop's powder car for selective laser melting equipment, includes scraper frame, scraper and stores up the powder box, the scraper is installed in the bottom surface of scraping the scraper frame, store up the powder box and install in scraping the scraper frame, it has the discharge opening that is used for spreading the powder on the powder box to store up, the switching that the discharge opening can be controlled. In the technical scheme of the invention, the powder storage box can be arranged on the side surface of the scraper frame and also can be arranged on the top surface of the scraper frame, and the powder storage box and the scraper are arranged at different positions of the scraper frame respectively.
Further, the powder storage box is provided with a powder storage cavity for storing powder, and the powder storage cavity is communicated with the discharge opening.
Further, store up the powder box and install in the side of scraping the knife rest, wherein, the side can also be for scraping the rear side of knife rest for scraping the front side of knife rest, it is provided with the pivot along self length direction to store up the powder box, it is provided with the storage powder box supporting shoe that is used for installing the storage powder box respectively to scrape knife rest length direction's both ends, what the both ends of pivot corresponded respectively articulates in storing up the powder box supporting shoe, the discharge opening sets up in storing up the powder box and is close to one side of scraping the knife rest and be located the bottom that stores up the powder chamber, the driving piece has stiff end and drive end, the stiff end is installed in the top of scraping the knife rest, the drive end is connected with the upper portion that stores up the powder box, the pivot sets up position department between driving piece and discharge opening.
Further, the powder storage box has a material receiving state and a material discharging state; in the material receiving state, the upper part of the powder storage box is driven by the driving end of the driving piece to be away from the scraper frame, and the powder storage box rotates around the rotating shaft along with the driving end of the driving piece and enables the discharging opening to be attached to the side face of the scraper frame; under the state of unloading, the drive end of the upper portion driven piece of storage powder box is being close to the scraper frame, and storage powder box revolutes the rotation of axes and makes the discharge opening keep away from the scraper frame thereupon. In the design of the invention, the side surface of the scraper frame is equivalent to a cover plate for sealing the discharge opening, and the driving part can select an electric push rod or a stretching cylinder to realize the driving function of the powder storage tank.
Further, the vertical section of the powder storage cavity is of a conical structure with a large upper part and a small lower part. The powder storage cavity adopts an inverted cone design with a small-angle steep slope, so that the metal powder can be rapidly discharged from the powder storage cavity.
Further, storage assembly still includes the sealing strip, the sealing strip is installed and is located discharge opening and scraper position department between the frame on scraping the knife rest. The setting of sealing strip has effectively compensatied and has scraped the difficult problem that can't form effective seal between knife rest and the discharge opening, has greatly improved holistic leakproofness, and the quantity that the sealing strip set up should be for the integer multiple of storage powder box quantity, and a storage powder box will set up a sealing strip at least promptly to guarantee the leakproofness of storage powder box.
Further, store up the powder box and be provided with two, store up the powder box respectively for setting up in the preceding powder box of storing up of scraper front side and set up in the back of scraper rear side and store up the powder box.
Further, the driving piece has a plurality of, a plurality of the driving piece sets up in scraping the knife rest, part along storing up powder box length direction interval the driving piece is for installing in scraping the knife rest and being located the preceding powder box driving piece that stores up the powder box before being used for driving near preceding powder box position department, remains the driving piece is for installing in scraping the knife rest and being located the back powder box driving piece that stores up the powder box after being used for driving near back powder box position department. The quantity of driving piece needs to be confirmed according to the size of storage powder box, conditions such as capacity, and different storage powder boxes then need set up the driving piece of different quantity.
Further, the upper portion of storing up the powder box still is provided with and makes the discharge opening with scrape the inseparabler elastic component of laminating of knife rest side under the material receiving state, the one end of elastic component is installed in the upper portion of storing up the powder box, and the other end is connected in the upper portion of scraping the knife rest. The setting of elastic component has additionally exerted an outside thrust in the upper portion of storing up the powder box in other words, and according to lever principle, the discharge opening then can receive an inside thrust, so can make the side laminating of discharge opening and scraper frame inseparabler, and this design is also in order to improve the leakproofness of storing up the powder box.
Further, still be provided with preceding link plate of scraper stores pylon and scraper on the scraper frame, the scraper stores pylon has two, two the scraper stores pylon is installed respectively in the both ends of scraping scraper frame length direction, the link plate is installed in the outside of scraping the scraper frame and being located the preceding storage powder box before the scraper.
The invention has the beneficial effects that:
the invention discloses a powder paving vehicle for selective laser melting equipment, wherein a powder storage box is independently arranged on the side surface of a scraper frame, so that the sealing property of the powder storage box is improved; the scraper is arranged at the bottom of the scraper frame, so that the scraper is separated from the powder storage box, the magnetization of a printing material is avoided, and the printing effect is effectively improved; the powder carrying scraper is simple in integral structure, the metal powder of the printing material is less in contact with the scraper shaft when the powder carrying scraper is used, the powder carrying scraper is good in sealing performance and easy to machine and manufacture, the manufacturing cost is effectively reduced, and the integral economy is improved.
Drawings
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a left side view of the present invention;
FIG. 5 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 7 is a cross-sectional view taken at C-C of FIG. 2;
FIG. 8 is a cross-sectional view taken along line D-D of FIG. 3;
fig. 9 is a partially enlarged view of fig. 7 at E.
Detailed Description
FIG. 1 is a schematic side view of the present invention; FIG. 2 is a front view of the present invention; FIG. 3 is a top view of the present invention; FIG. 4 is a left side view of the present invention; FIG. 5 isbase:Sub>A sectional view taken along line A-A of FIG. 2; FIG. 6 is a cross-sectional view taken along line B-B of FIG. 2; FIG. 7 is a cross-sectional view taken at C-C of FIG. 2; FIG. 8 is a cross-sectional view taken along line D-D of FIG. 3; fig. 9 is a partially enlarged view of fig. 7 at E. It should be noted that in the description of the present specification, the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In this embodiment, a side away from the doctor blade holder is an outer side, and if no special description is provided, the mounting, the connection, and the like mentioned in the embodiments of this specification are all realized by a detachable connection manner such as a bolt connection, which is a method or means that can be understood by those skilled in the art, and is not described herein again.
As shown in the figure, the invention discloses a powder spreading vehicle for selective laser melting equipment, which comprises a scraper frame 1, a scraper 11 and a powder storage box, wherein the scraper 11 is installed on the bottom surface of the scraper frame 1 through a scraper installation frame 12, the powder storage box is installed on the scraper frame 1, a discharge opening for spreading powder is formed in the powder storage box, and the discharge opening can be opened and closed controllably.
In the embodiment, the top of the powder storage box is inwards recessed to form a powder storage cavity 10 communicated with the discharge opening, the vertical section of the powder storage cavity 10 is of a tapered structure with a large upper part and a small lower part, and the powder storage cavity 10 adopts an inverted tapered design with a small-angle steep slope to ensure that metal powder can be rapidly discharged from the powder storage cavity 10; the driving piece is telescopic cylinder, and telescopic cylinder has a stiff end and a drive end, and telescopic cylinder's stiff end is installed in the top of scraping knife rest 1, and telescopic cylinder's drive end is provided with a spherical joint, spherical joint installs in storing up the powder box and lies in the upper portion that stores up the powder box, and spherical joint's setting is more smooth and easy when the powder box rotates in order to let the driving piece store up the powder box in the drive, and telescopic cylinder stores up the switching of powder box control discharge opening through the drive.
In this embodiment, the powder storage box is installed on the side surface of the scraper frame 1, and the powder storage box is provided with a rotating shaft along the length direction of the powder storage box, in this embodiment, in order to avoid the influence of the rotating shaft on the powder storage and discharging of the powder storage cavity 10, and meanwhile, the light weight design is also considered, the rotating shaft of this embodiment is a split type rotating shaft, that is, a rotating shaft is respectively arranged on the end surfaces of two sides of the powder storage box in the length direction, the rotating shafts of the two sides only need to be coaxially arranged, the two ends of the scraper frame 1 in the length direction are respectively provided with powder storage box supporting blocks for installing the powder storage box, and the two rotating shafts are respectively and correspondingly hinged to the supporting blocks at the two ends of the powder storage box; the discharge opening is arranged at one side of the powder storage box close to the scraper frame 1 and is positioned at the bottom of the powder storage cavity 10; the storage assembly in the embodiment further comprises a sealing strip, the sealing strip is an elastic foam sealing rubber strip, the area of the sealing strip is larger than that of the discharge opening so as to ensure the sealing performance of the sealing strip, and the sealing strip is arranged on the scraper frame 1 and is positioned between the discharge opening and the scraper frame 1; the setting of sealing strip has effectively compensatied and has scraped the difficult problem that can't form effective seal between knife rest 1 and the discharge opening, has greatly improved holistic leakproofness, and the quantity that the sealing strip set up should be for the integer multiple of storage powder box quantity, and a storage powder box will set up a sealing strip at least promptly to guarantee the leakproofness of storage powder box. The discharge opening of this embodiment designs into vertical incision, is convenient for it and sealing strip laminating.
In this embodiment, the upper portion of storing up the powder box still is provided with and makes the discharge opening with scrape the inseparabler elastic component 8 of laminating of knife rest 1 side under the material receiving state, elastic component 8 is compression spring, the upper portion in storing up the powder box is installed to the one end of elastic component 8, and the other end is connected in the upper portion of scraping knife rest 1. The setting of elastic component 8 has additionally exerted an outside thrust on the upper portion of storing up the powder box in other words, and according to lever principle, an inside thrust then can be received to the discharge opening, so can make the side laminating of discharge opening and scraper frame 1 inseparabler, and this design is also for improving the leakproofness of storing up the powder box.
In the embodiment of the invention, the opening and closing of the discharge opening are realized by driving the powder storage box to rotate around the rotating shaft through the driving part, so that the discharge opening is tightly attached to or far away from the side surface of the scraper frame 1 to control the opening and closing of the discharge opening, and in the design of the invention, the side surface of the scraper frame 1 is equivalent to a cover plate for sealing the discharge opening. The powder storage box in the embodiment has a material receiving state and a material discharging state; in the material receiving state, the driving end of the telescopic cylinder is in a stretching state, the upper part of the powder storage box is pushed outwards by a spherical joint on the driving end of the telescopic cylinder to be far away from the scraper frame 1, and the powder storage box rotates around the rotating shaft along with the powder storage box and enables the discharging opening to be attached to the side surface of the scraper frame 1; under the state of unloading, telescopic cylinder's drive end is the contraction status, the upper portion of storing up the powder box is close to scraper frame 1 by the inside pulling of spherical joint on the telescopic cylinder drive end, stores up the powder box and rotates around the pivot thereupon and make the discharge opening keep away from scraper frame 1.
In this embodiment, store up the powder box and be provided with two, store up powder box 2 and set up in the back of scraping knife rest 1 rear side for setting up in the preceding powder box that stores up of scraping knife rest 1 front side respectively 3. In order to reach the purpose of lightweight design, store up the powder box supporting shoe in this embodiment and also adopt split type design, be about for two install in the storage powder box supporting shoe design of scraping 1 both ends store up powder box supporting shoe 7A before 2 and two after being used for supporting 3 of storage powder box store up powder box supporting shoes 7B before being used for supporting for two, compare with the integral type design, the storage powder box supporting shoe volume of split type design is littleer, and the quality is lighter. The two front powder storage box supporting blocks 7A are arranged at two ends of the length direction of the scraper frame 1 and are positioned at positions close to the front side of the scraper frame 1, and the two rear powder storage box supporting blocks 7B are arranged at two ends of the length direction of the scraper frame 1 and are positioned at positions close to the rear side of the scraper frame 1; the rotating shaft 9A of the front powder storage box 2 is hinged to the front powder storage box supporting block 7A, and the rotating shaft 9B of the rear powder storage box 3 is hinged to the rear powder storage box supporting block 7B. Meanwhile, in order to make the powder storage box rotate more smoothly, in the embodiment, a deep groove ball bearing 13 is sleeved on the periphery of the rotating shaft, as shown in fig. 8; in this embodiment, owing to be provided with two powder storage box, the sealing strip also need set up two, is respectively for setting up the sealing strip 14A who is close to preceding powder storage box 2 one side on scraping the knife rest to and set up the sealing strip 14B who is close to back powder storage box 3 one side on scraping the knife rest, and sealing strip 14A is used for improving preceding powder storage box 2's leakproofness, and sealing strip 14B is used for improving the leakproofness of back powder storage box 3.
In this embodiment, there are four driving members, wherein the driving member 4A and the driving member 4B are used for driving the front powder storage box 2, and the driving member 4C and the driving member 4D are used for driving the rear powder storage box 3; the driving part 4A and the driving part 4B are arranged on the scraper frame 1 and are positioned at positions close to the front powder storage box 2, and the driving part 4A and the driving part 4B are respectively arranged at positions close to the end parts of two sides of the front powder storage box 2 in the length direction; driving piece 4C and driving piece 4D install in scraping knife rest 1 and lie in and store up powder box 3 position department after being close to, driving piece 4C and driving piece 4D then set up respectively in the position department that the both sides of storing up powder box 3 length direction are close to the tip after. Meanwhile, in this embodiment, four elastic members 8 are provided, two of the four elastic members are used for the front powder storage box 2, the remaining two elastic members are used for the rear powder storage box 3, the two elastic members used for the front powder storage box 2 are respectively and correspondingly arranged at two ends of the front powder storage box 2 in the length direction, and the two elastic members used for the rear powder storage box 3 are respectively and correspondingly arranged at two ends of the rear powder storage box 3 in the length direction.
In this embodiment, link plate 5 before scraper stores pylon 6 and the scraper still is provided with on the scraper frame 1, scraper stores pylon 6 has two, two scraper stores pylon 6 is installed respectively in the both ends of scraping 1 length direction of scraper frame and is located the top of scraping the knife frame, installs link plate 5 before the scraper in this embodiment on preceding powder storage box supporting shoe 7A.
The specific application method of the bidirectional powder paving vehicle is as follows:
a. all stretching cylinders are adjusted to be in a stretching state and set to be in original positions, at the moment, the bidirectional powder paving vehicle is operated to a printer bin to connect the materials, and the rear powder storage box 3 and the front powder storage box 2 sequentially receive quantitative metal powder;
b. after the powder is received, the bidirectional powder spreading vehicle moves to a front powder spreading position, at the moment, the stretching cylinder of the front powder storage box 2 shrinks to drive the front powder storage box 2 to turn over for a certain angle by taking the rotating shaft 9A as a rotating center, at the moment, the discharge opening of the front powder storage box 2 is separated from the foam sealing rubber strip on the side wall of the scraper frame 1 main body, and the metal powder is unloaded from the foam sealing rubber strip;
c. after unloading is finished, the stretching cylinder of the front powder storage box 2 is restored to a stretching state, the front powder storage box 2 is attached to the foam sealing rubber strip again under the action of the compression spring, and the bidirectional powder spreading vehicle carries the scraper 11 to continue running and starts to spread powder forwards;
d. when the forward powder spreading is finished, the scraper 11 moves to a backward powder spreading stop position, at the moment, the rear powder storage box 3 stretches the cylinder to contract to drive the rear powder storage box 3 to turn over for a certain angle by taking the rotating shaft 9B as a rotating center, and metal powder in the rear powder storage box 3 is unloaded from the rear powder storage box;
e. after the rear powder storage box 3 finishes unloading, the stretching cylinder of the rear powder storage box 3 restores to the stretching state, the rear powder storage box 3 is attached to the foam sealing rubber strip under the action of the compression spring, and then the bidirectional powder spreading vehicle carries the scraper 11 to spread powder after running;
and (4) finishing powder paving after the scraper 11, returning to the original material receiving position, and continuously repeating the actions of the steps a to e.
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 (10)
1. The utility model provides a shop's powder car for selective laser melting equipment which characterized in that: including scraping knife rest, scraper and storage powder box, the scraper is installed in the bottom surface of scraping the knife rest, store up the powder box and install in scraping the knife rest, it has the discharge opening that is used for spreading the powder on the powder box to store up, the switching that the discharge opening can be controlled.
2. A powder laying cart for a selective laser melting apparatus as defined in claim 1, wherein: the powder storage box is provided with a powder storage cavity for storing powder, and the powder storage cavity is communicated with the discharge opening.
3. A powder laying cart for a selective laser melting apparatus as defined in claim 2, wherein: still include the driving piece, store up the powder box and install in the side of scraping the knife rest, it is provided with the pivot to store up the powder box along self length direction, scrape the both ends of knife rest length direction and be provided with the storage powder box supporting shoe that is used for the installation to store up the powder box respectively, what the both ends of pivot corresponded respectively articulates in storing up the powder box supporting shoe, the discharge opening sets up in storing up the powder box and is close to one side of scraping the knife rest and be located the bottom in storage powder chamber, the driving piece has stiff end and drive end, the stiff end is installed in the top of scraping the knife rest, the drive end is connected with the upper portion that stores up the powder box, the pivot sets up position department between driving piece and discharge opening.
4. A powder laying cart for a selective laser melting apparatus as defined in claim 3, wherein: the powder storage box is provided with a material receiving state and a material discharging state; in the material receiving state, the upper part of the powder storage box is driven by the driving end of the driving piece to be away from the scraper frame, and the powder storage box rotates around the rotating shaft along with the driving end of the driving piece and enables the discharging opening to be attached to the side face of the scraper frame; under the state of unloading, the drive end of the upper part of the powder storage box driven by the driving part is close to the scraper frame, and the powder storage box rotates around the rotating shaft and enables the discharge opening to be far away from the scraper frame.
5. A powder laying cart for a selective laser melting apparatus as defined in claim 2, wherein: the vertical section of the powder storage cavity is of a conical structure with a large upper part and a small lower part.
6. A powder laying cart for a selective laser melting apparatus as defined in claim 2, wherein: the storage assembly further comprises a sealing strip, and the sealing strip is installed on the scraper frame and located at a position between the discharge opening and the scraper frame.
7. A powder paving vehicle for a selective laser melting apparatus as defined in claim 4, wherein: the powder storage box is provided with two, is respectively the preceding powder storage box that sets up in the scraper front side and sets up in the back powder storage box of scraper rear side.
8. A powder laying cart for a selective laser melting apparatus as defined in claim 7, wherein: the driving piece has a plurality of, a plurality of the driving piece sets up in scraping the knife rest along storing up powder box length direction interval, part the driving piece is for installing in scraping the knife rest and being located and store up the preceding powder box driving piece that powder box position department was used for the drive before being close to, store up powder box position department and be used for the drive after scraping the knife rest and be located and store up the powder box driving piece after being close to.
9. A powder laying cart for a selective laser melting apparatus as defined in claim 7, wherein: the upper portion of storing up the powder box still is provided with and makes the discharge opening with scrape the inseparabler elastic component of laminating of knife rest side under the material collecting state, the one end of elastic component is installed in the upper portion of storing up the powder box, and the other end is connected in the upper portion of scraping the knife rest.
10. A powder laying vehicle for selective laser melting equipment as claimed in claim 1, wherein: still be provided with preceding link plate of scraper stores pylon and scraper on the scraper frame, the scraper stores pylon has two, two the scraper stores pylon is installed respectively in the both ends of scraping scraper frame length direction, the link plate is installed in the outside of scraping the scraper frame and being located preceding storage powder box before the scraper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211199622.2A CN115446332B (en) | 2022-09-29 | 2022-09-29 | Powder spreading vehicle for laser selective melting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211199622.2A CN115446332B (en) | 2022-09-29 | 2022-09-29 | Powder spreading vehicle for laser selective melting equipment |
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| Publication Number | Publication Date |
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| CN115446332A true CN115446332A (en) | 2022-12-09 |
| CN115446332B CN115446332B (en) | 2024-02-23 |
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| CN202211199622.2A Active CN115446332B (en) | 2022-09-29 | 2022-09-29 | Powder spreading vehicle for laser selective melting equipment |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205553259U (en) * | 2016-04-12 | 2016-09-07 | 湖南华曙高科技有限责任公司 | A send whitewashed system and send powder paving device for making three -dimensional body |
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| CN114985774A (en) * | 2022-07-08 | 2022-09-02 | 苏州中科煜宸激光智能科技有限公司 | Powder supply device for compact SLM printer |
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| CN205553259U (en) * | 2016-04-12 | 2016-09-07 | 湖南华曙高科技有限责任公司 | A send whitewashed system and send powder paving device for making three -dimensional body |
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| CN206898391U (en) * | 2017-04-28 | 2018-01-19 | 湖南华曙高科技有限责任公司 | Three-dimensional body manufacturing equipment and its power spreading device |
| CN207709865U (en) * | 2018-01-10 | 2018-08-10 | 南京百川行远激光科技股份有限公司 | A kind of powder feeding and spreading device suitable for selective melting forming |
| CN208324232U (en) * | 2018-05-30 | 2019-01-04 | 苏州倍丰激光科技有限公司 | Two-way powder laying device |
| CN108995215A (en) * | 2018-06-27 | 2018-12-14 | 共享智能铸造产业创新中心有限公司 | Power spreading device applied to 3D printer |
| CN114985774A (en) * | 2022-07-08 | 2022-09-02 | 苏州中科煜宸激光智能科技有限公司 | Powder supply device for compact SLM printer |
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| CN115446332B (en) | 2024-02-23 |
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