CN109622966A - A kind of top panel mechanism, powder cylinder and selective laser melting unit - Google Patents
A kind of top panel mechanism, powder cylinder and selective laser melting unit Download PDFInfo
- Publication number
- CN109622966A CN109622966A CN201910095577.8A CN201910095577A CN109622966A CN 109622966 A CN109622966 A CN 109622966A CN 201910095577 A CN201910095577 A CN 201910095577A CN 109622966 A CN109622966 A CN 109622966A
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- Prior art keywords
- top panel
- panel mechanism
- upper plate
- lower plate
- boss
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- 230000007246 mechanism Effects 0.000 title claims abstract description 71
- 239000000843 powder Substances 0.000 title claims abstract description 43
- 238000002844 melting Methods 0.000 title abstract description 9
- 230000008018 melting Effects 0.000 title abstract description 9
- 238000007789 sealing Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 11
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 238000010146 3D printing Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- B22F10/20—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
-
- 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
- B22F12/22—Driving means
- B22F12/222—Driving means for motion along a direction orthogonal to the plane of a layer
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
-
- 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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
-
- 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
- B29C64/245—Platforms or substrates
-
- 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
Abstract
The invention discloses a kind of top panel mechanism, powder cylinder and selective laser melting unit, the top panel mechanism includes the upper plate, seal structure and lower plate set gradually from top to bottom, and the powder cylinder and selective laser melting unit include the top panel mechanism.The three-decker that the present invention is combined using upper plate, seal structure and lower plate, make the top panel mechanism stable structure of powder cylinder, stress equalization, additionally it is provided with the small wear ring of coefficient of friction, reduce the friction between top panel mechanism and cylinder body, friction between top panel mechanism and cylinder body is not intermetallic friction, to reduce the abrasion of top panel mechanism, substantially increases the wearability, leakproofness and service life of top panel mechanism.
Description
Technical field
The present invention relates to increases material manufacturing technology field more particularly to a kind of top panel mechanisms, powder cylinder and selective laser fusing
Equipment.
Background technique
Increasing material manufacturing is commonly called as 3D printing, has merged CAD, material processing and forming technique, with digital mould
It based on type file, is successively accumulated according to modes such as extruding, sintering, melting, photocuring, injections, produces the system of physical item
Make technology.3D printing includes the selective laser melting unit for melting printed material, and selective laser melting unit includes providing
The powder cylinder and moulding cylinder of powder are all made of servo motor+belt driving as power, and driving screw rod drives cylinder piston or more
Movement, when machine works normally, powder cylinder is up moved by required powdering thickness, and same moulding cylinder is transported down by printing thickness
It is dynamic.After the completion of printing, by extreme lower position is retracted, moulding cylinder is gone up to be come powder cylinder, is removed extra powder, is taken out workpiece.It is existing
The powder feeder unit and Patent No. of a kind of 3D printer of some powder supply cylinders such as Patent No. CN201710878825.7
Powder is placed in the powder feeder unit that a kind of novel rapid forming equipment of CN201710967266.7 and its auxiliary powder method of powder feeding are announced
The top panel mechanism of body only has simple piston structure, and the piston is equipped with idler wheel and is slidably connected with sliding slot, and top land is set
There is powder supply plate, is equipped with linear drive apparatus in cylinder base and drives piston up-down.In practical work process, top panel mechanism
Reciprocal up and down motion powder supply is needed repeatedly, often with cylinder body friction, therefore top panel mechanism needs have good wearability and structure
Stability, in addition, the diameter of usually powder needed for 3D printing is 15-60 microns, common piston structure was being used
It is easy in journey and cylinder body rub between metal, top panel mechanism is easy to wear, gap is formed between cylinder body, due to powder granule diameter
It is smaller to be easy to enter cylinder bottom from abrasion gap, it will cause the increasing of piston resistance, influence printed product Z-direction precision；With equipment
Aggravated using abrasion, powder granule be easy to cause motor obstruction to shut down in cylinder bottom accumulation, printed product, causes extremely bad
Usage experience and service life of equipment can be reduced.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, that the present invention provides a kind of wearabilities is good, leakproofness is strong and uses the longevity
Order the powder cylinder and selective laser melting unit of long top panel mechanism and the application top panel mechanism.
The technical solution adopted by the present invention to solve the technical problems are as follows:
A kind of top panel mechanism, including the upper plate, seal structure and lower plate being fixedly connected sequentially from top to bottom, the upper plate
Periphery is arranged with the first wear ring, and the periphery of the lower plate is arranged with the second wear ring.
Preferably, the seal structure is annular slab, and the periphery of the seal structure is equipped with the first groove, described the
The first sealing ring is equipped in one groove.
Preferably, the upper plate is circular slab, and it is convex that first boss, second that outer diameter successively decreases are successively arranged on the upper plate
Platform, first wear ring are set in the first boss periphery；The lower plate is annular slab, is successively arranged in the lower plate outer
Third boss that diameter successively decreases, the 4th boss, second wear ring are set in third boss periphery.
Preferably, the material of first wear ring and/or the second wear ring is polytetrafluoroethylene (PTFE).
Preferably, the consistency of thickness of the upper plate and lower plate.
Preferably, the upper plate and lower plate are symmetrical arranged relative to seal structure.
Preferably, the seal structure is ring structure body.
Preferably, the upper plate upper surface is equipped with substrate.
Correspondingly, the present invention also provides a kind of powder cylinder, including cylinder body, driving mechanism and above-mentioned top panel mechanism, the top
Trigger structure is arranged in the cylinder body of powder cylinder, and the top panel mechanism is connect with driving mechanism, drives top panel mechanism by driving mechanism
It moves up and down.
Correspondingly, the present invention also provides a kind of selective lasers to melt equipment, including above-mentioned powder cylinder.
The beneficial effects of the present invention are as follows: the three-decker that the present invention is combined using upper plate, seal structure and lower plate, makes powder
The top panel mechanism stable structure of material cylinder, stress equalization are additionally provided with the small wear ring of coefficient of friction, reduce top panel mechanism and
Friction between cylinder body, the friction between top panel mechanism and cylinder body is not intermetallic friction, to reduce the abrasion of top panel mechanism, greatly
The wearability, leakproofness and service life of top panel mechanism are improved greatly.
Detailed description of the invention
With reference to the accompanying drawing and specific embodiment the invention will be further described, in which:
Fig. 1 is the explosive view of the top panel mechanism in preferred embodiment of the present invention；
Fig. 2 is the sectional view of the top panel mechanism in preferred embodiment of the present invention；
Fig. 3 is the top view of the upper plate in preferred embodiment of the present invention；
Fig. 4 is the sectional view of the upper plate in preferred embodiment of the present invention；
Fig. 5 is the top view of the seal structure in preferred embodiment of the present invention；
Fig. 6 is the sectional view of the seal structure in preferred embodiment of the present invention；
Fig. 7 is the top view of the lower plate in preferred embodiment of the present invention；
Fig. 8 is the sectional view of the lower plate in preferred embodiment of the present invention；
Fig. 9 is the installation diagram of the top panel mechanism in preferred embodiment of the present invention.
Wherein, 1- substrate, 2- upper plate, 3- seal structure, 4- lower plate, the first sealing ring of 5-, the first wear ring of 61-, 62-
Second wear ring, 7- first boss, the first groove of 8-, 9- third boss, 10- driving mechanism, 11- cylinder body, 12- second are sealed
Circle, 13- second boss, the 4th boss of 14-, the second groove of 15-, the second threaded hole of 16-, the first threaded hole of 17-, 18- third spiral shell
Pit, 19- unthreaded hole.
Specific embodiment
Specific embodiments of the present invention will be further explained below.It should be noted that for these implementations
The explanation of mode is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, invention described below
Technical characteristic involved in each embodiment can be combined with each other as long as they do not conflict with each other.
Referring to FIG. 1 to FIG. 8, a kind of preferred embodiment of the invention: a kind of top panel mechanism, the top panel mechanism are arranged in powder
In material cylinder, including the upper plate 2, seal structure 3 and lower plate 4 set gradually from top to bottom, the top panel mechanism can be in powder
It moves up and down in cylinder.The upper plate 2 is circular slab, and the lower plate 4 is annular slab, and the seal structure 3 is ring structure body,
The shape of the certain upper plate 2, seal structure 3 and lower plate 4 is not as the limitation of the invention, and shape can be according to practical feelings
Condition makes a change.The upper surface of the upper plate 2 is equipped with substrate 1, is set on substrate 1 there are two screw hole, which is counter sink,
So that screw is fully embedded substrate, passes through the fixed upper plate 2 of two crisscross screws and substrate 1, the head of plus screw and 1 base of substrate
This maintain an equal level, the benefit designed in this way be reduce substrate screwing installation site gap, it is possible to reduce the waste of powder, reduce at
This.The second threaded hole 16 that 6 diameters are 4mm is equipped on the upper plate 2, lower plate 4 and seal structure 3, for utilizing spiral shell
Follow closely fixed upper plate 2, seal structure 3 and lower plate 4.The center of the upper plate 2 is equipped with the third threaded hole 18 that diameter is 12mm, uses
In the disassembly of upper plate.The upper plate 2 is additionally provided with the unthreaded hole 19 that 2 diameters are 5mm, center pair of two unthreaded holes 19 with respect to upper plate 2
Claim setting, for by the fixed upper plate 2 of screw and driving mechanism 10, driving mechanism 10 to be equipped with straight in the position contacted with unthreaded hole 19
Diameter is 5mm threaded hole, and threaded hole is equipped with chamfering, and using unthreaded hole rather than threaded hole makes the even closer fitting driving machine of upper plate 2
Structure 10.Four the first threaded holes 17 are additionally provided on upper plate 2, for cooperating third threaded hole 18 that upper plate is dismantled from top panel mechanism
Get off, when dismantling upper plate 2, first loosens upper plate 2 by four the first threaded holes 17 using tool, then pass through third threaded hole 18
Thoroughly upper plate 2 is taken out.Threaded hole size in the present embodiment only does illustrative example, is not construed as the limit of the application
It is fixed.The three-decker combined using upper plate 2, seal structure 3 and lower plate 4, the comparison prior art, stable structure, stress equalization,
And on upper plate 2 and lower plate 4, the present embodiment is also provided with the first wear ring 61 in the periphery of upper plate 2, sets in the periphery of lower plate 4
The second wear ring 61 has been set, the wearability, leakproofness and service life of top panel mechanism are substantially increased.
Specifically, 3 periphery of seal structure is equipped with the first groove 8, it is equipped with the first sealing ring 5 in the first groove 8, by
It is 15-60 microns in the size of the powder on top panel mechanism, is easy to enter cylinder bottom from gap, by the way that the first sealing ring 5 is arranged, prevents
Only powder falls.Referring to Fig. 9, in the actual implementation process, the periphery of the periphery of first sealing ring 5 than seal structure 3
Slightly protruding contacts seal structure 3 adequately with the cylinder body 11 of powder cylinder, and the first sealing ring 5 of reinforcement is matched with cylinder body 11
It closes, enhances leakproofness, more preferably prevent powder from falling.
Specifically, the upper plate is circular slab, it is convex to be successively arranged the first boss 7, second that outer diameter successively decreases on the upper plate
Platform 13, first wear ring are set in 7 periphery of first boss；The lower plate is annular slab, is successively set in the lower plate
Third boss 9, the 4th boss 14 for having outer diameter to successively decrease, second wear ring are set in 9 periphery of third boss.By setting
The first wear ring and the second wear ring are set, top panel mechanism leakproofness is improved, reduces coefficient of friction, reduces top panel mechanism and cylinder body 11
Abrasion, avoid occurring wearing clearance between top panel mechanism and cylinder body 11, prevent powder fall.Further, the second boss 13
Periphery it is more smaller than the inner ring of the seal structure 3 of annular, the upper plate 2 by 13 indentation sealing structural body 3 of second boss, with
Seal structure 3 is coupled.The periphery of 4th boss 14 is more smaller than the inner ring of seal structure 3, and the lower plate 4 passes through
4th boss, 14 indentation sealing structural body 3, is coupled with seal structure 3, specifically, the height of second boss 13 and the 4th
The sum of the height of boss 14 is slightly less than the thickness of seal structure 3, second after installing upper plate 2, seal structure and lower plate
There are gap between boss 13 and the 4th boss 14, setting in this way can make upper plate 2, lower plate 4 fit closely seal structure 3,
Cooperate even closer.Referring to Fig. 9, in the actual implementation process, the periphery of first wear ring 61 than upper plate 2 periphery slightly
Protrusion, the periphery of second wear ring 62 makes the first wear ring 61, the second wear ring 62 than the periphery slightly protruding of lower plate 4
It is adequately contacted with the cylinder body 11 of powder cylinder, reinforces the cooperation of the first wear ring 61, the second wear ring 62 and cylinder body 11, top plate machine
The friction between friction not instead of metal between structure and cylinder body 11, the friction between wear-resisting ring material and cylinder body 11.Further, institute
The inner circumferential for stating lower plate 4 is additionally provided with the second groove 15, is equipped with the second sealing ring 12 in the second groove 15, improves top panel mechanism sealing
Property.
In the present embodiment, first wear ring 61, the second wear ring 62 material be polytetrafluoroethylene (PTFE), polytetrafluoroethyl-ne
Alkene have excellent performance: high temperature resistant --- can the long-time service at 200~260 degree of temperature, it is low temperature resistant --- -100 degree
When it is still soft；Weatherability --- optimal aging life-span in plastics；High lubrication --- there is the smallest coefficient of friction in plastics
0.04；It is non-stick --- with the smallest surface tension in solid material without adhering to any substance；Nonhazardous --- there is life
Manage inertia；It is corrosion-resistant --- to most of chemicals and solvent, show inertia, can strong alkali-acid resistance, water and various organic
Solvent；With good mechanical tenacity.Therefore material is used as wear ring 6 using polytetrafluoroethylene (PTFE), equipment can be made to exist
It works within the scope of wider temperature, can be in the use of a variety of extreme environments, frictional force is small, is that coefficient of friction is most in solid material
The friction between Gang Ding mechanism and cylinder body 11, long service life, nonhazardous is effectively reduced in low person.
Specifically, the consistency of thickness of the upper plate 2 and lower plate 4, and upper plate 2 and lower plate 4 are symmetrical relative to seal structure 3
Setting, when so that top panel mechanism pumping in cylinder body 11, average force, balance quality is good, and due to 2 He of upper plate
4 consistency of thickness of lower plate can be from cutting processing on same metal plate when processing, and upper plate 2 is identical with most of structure of lower plate 4
Therefore process costs can be reduced.
Referring to Fig. 9, a kind of installation process of top panel mechanism of the embodiment of the present invention are as follows:
Lower plate 4 is horizontally arranged, upper second wear ring 62, compacting are covered on the third boss 9 of lower plate 4.By the first sealing
Circle 5 is packed into the first groove 8 of seal structure 3, is inserted in seal structure 3 on the 4th boss 14 of lower plate 4.By 2 water of upper plate
Placing flat covers upper first wear ring 61, compacting in the first boss 7 of upper plate 2.The second boss 13 of upper plate 2 is packed into sealing
Structural body 3, second boss 13 and the 4th boss 14 can be convenient fixing seal structural body 3, be easily installed.It is screwed upper plate
2, seal structure 3 and lower plate 4.The second sealing ring 12 is packed into the second groove 15 of 4 inner circumferential of lower plate.By the upper plate 2 fixed,
Intermediate structures 3, lower plate 4 are placed in the cylinder body 11 of powder cylinder, use the driving in the fixed upper plate 2 of two hex screws and cylinder body 11
Mechanism 10.Substrate 1 is placed on upper plate 2 and with two crisscross screw fixed substrates 1 and upper plate 2.
A kind of preferred embodiment of powder cylinder of the present invention, including cylinder body, driving mechanism 10 and above-mentioned top panel mechanism, the top
Trigger structure is arranged in the cylinder body of powder cylinder, and the top panel mechanism is connect with driving mechanism 10, drives top plate by driving mechanism 10
Mechanism moves up and down.
The present invention melts a kind of selective laser the preferred embodiment of equipment, including above-mentioned powder cylinder.
The above, only better embodiment of the invention, but the present invention is not limited to above-described embodiments, as long as
The technical effect of the present invention is achieved by any identical or similar means for it, all should belong to protection scope of the present invention.
Claims (10)
1. a kind of top panel mechanism, it is characterised in that: the top panel mechanism include the upper plate (2) being fixedly connected sequentially from top to bottom,
Seal structure (3) and lower plate (4), upper plate (2) periphery are arranged with the first wear ring (61), the periphery of the lower plate (4)
It is arranged with the second wear ring (62).
2. a kind of top panel mechanism according to claim 1, it is characterised in that: the periphery of the seal structure (3) is equipped with
First groove (8), first groove (8) is interior to be equipped with the first sealing ring (5).
3. a kind of top panel mechanism according to claim 1, it is characterised in that: the upper plate (2) is circular slab, the upper plate
On be successively arranged first boss (7), the second boss (13) that outer diameter successively decreases, first wear ring (61) is set in described first
Boss periphery；The lower plate (4) is annular slab, and third boss (9), the 4th that outer diameter successively decreases are successively arranged on the lower plate (4)
Boss (14), second wear ring (62) are set in third boss (9) periphery.
4. a kind of top panel mechanism according to claim 1 or 3, it is characterised in that: first wear ring (61) and/or
The material of two wear rings (62) is polytetrafluoroethylene (PTFE).
5. a kind of top panel mechanism according to claim 1, it is characterised in that: the thickness one of the upper plate (2) and lower plate (4)
It causes.
6. a kind of top panel mechanism according to claim 1, it is characterised in that: the upper plate (2) and lower plate (4) are relative to close
Seal structure body (3) is symmetrical arranged.
7. a kind of top panel mechanism according to claim 1, it is characterised in that: the seal structure (3) is ring structure
Body.
8. a kind of top panel mechanism according to claim 1, it is characterised in that: upper plate (2) upper surface is equipped with substrate
(1)。
9. a kind of powder cylinder, including cylinder body and driving mechanism (10), it is characterised in that: further include such as any institute of claim 1~8
The top panel mechanism stated, the top panel mechanism are arranged in the cylinder body (11) of powder cylinder, the top panel mechanism and driving mechanism (10)
Connection is moved up and down by driving mechanism (10) driving top panel mechanism.
10. equipment is melted in a kind of selective laser, it is characterised in that: including powder cylinder as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910095577.8A CN109622966A (en) | 2019-01-31 | 2019-01-31 | A kind of top panel mechanism, powder cylinder and selective laser melting unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910095577.8A CN109622966A (en) | 2019-01-31 | 2019-01-31 | A kind of top panel mechanism, powder cylinder and selective laser melting unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109622966A true CN109622966A (en) | 2019-04-16 |
Family
ID=66064479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910095577.8A Pending CN109622966A (en) | 2019-01-31 | 2019-01-31 | A kind of top panel mechanism, powder cylinder and selective laser melting unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN109622966A (en) |
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| WO2015164234A1 (en) * | 2014-04-25 | 2015-10-29 | Carbon3D, Inc. | Continuous three dimensional fabrication from immiscible liquids |
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