CN207013284U - Screen assemblies and powder sieving system - Google Patents
Screen assemblies and powder sieving system Download PDFInfo
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- CN207013284U CN207013284U CN201720867066.XU CN201720867066U CN207013284U CN 207013284 U CN207013284 U CN 207013284U CN 201720867066 U CN201720867066 U CN 201720867066U CN 207013284 U CN207013284 U CN 207013284U
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- screen
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- screen cloth
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Abstract
The utility model provides a kind of Screen assemblies and powder sieving system, belong to powder sieving apparatus field, including sieve unit, sieve unit includes rack, screen cloth main body and guide, screen cloth main body is installed in rack, guide has the first opening and the second opening and the guiding wall for surrounding guide channel, the bore of first opening is more than the bore of the second opening, guide is installed on rack, first opening is configured to accept the material fallen from screen cloth main body, guiding wall is configured to accept the material fallen from the first opening and guides material to the second opening.The Screen assemblies are during powder sieving is carried out, it can put together to drop on next stage Screening Network from the material fallen after screening in screen cloth main body and be sieved again, and material waving to spin and gradually open motion with screen(ing) machine, screening effect is good, is not easily blocked screen cloth main body.
Description
Technical field
Powder sieving apparatus field is the utility model is related to, in particular to a kind of Screen assemblies and powder sieving
System.
Background technology
Selective laser fusing metal 3D printing technique (Selective laser melting, SLM) focuses on light using accurate
The preset metal dust from level to level completed of spot rapid melting, it can almost directly obtain arbitrary shape and there is complete metallurgical junction
The function part of conjunction.Consistency can reach intimate 100%, is a kind of rapid shaping technique of great development prospect, is especially navigating
There is particularly important application prospect in the fields such as empty space flight, medical treatment, automobile, mould.SLM technologies use superfine spherical powder as former
Material, usual 30-60 μm of powdering thickness (most thin powdering thickness is up to 20 μm).In order to shape to obtain even density, performance is consistent
Part, its requirement of various performance parameters to powder is extremely harsh, and especially distribution of particles is evaluation powder property most critical
One of parameter index.Therefore powder in production, selects a kind of stabilization effectively to sieve mode particularly critical.
In actual production, using traditional circular impact screen or the swing sieve that shakes, clogging is also easy to produce in screening,
And exist and yield poorly, screen cloth service life is short, the problem of frequently changing.In addition, while production efficiency is reduced, also increase
Multi-pass operation and the quality unstability factor brought, largely have impact on the quality fluctuation of aviation 3D printing powder,
Form the quality unstability factor of follow-up 3D printing process.
Utility model content
The purpose of this utility model is to provide a kind of Screen assemblies, is being sieving through with the powder sieving equipment for improving traditional
Easily occurs the problem of screen cloth blocking causes screen cloth service life short and yielded poorly in journey.
The purpose of this utility model is to provide a kind of powder sieving system, sieved with the powder sieving equipment for improving traditional
Easily occurs the problem of screen cloth blocking causes screen cloth service life short and yielded poorly during point.
What embodiment of the present utility model was realized in：
Based on above-mentioned first purpose, the utility model provides a kind of Screen assemblies, including sieve unit, and the screening is single
Member includes rack, screen cloth main body and guide, and the screen cloth main body is installed in the rack, and the guide has first
Opening and the second opening and the guiding wall for surrounding guide channel, the bore of first opening are more than the mouth of the described second opening
Footpath, the guide are installed on the rack, and first opening is configured to accept the material fallen from the screen cloth main body, institute
Guiding wall is stated to be configured to accept the material fallen from first opening and guide material to second opening.
In the utility model preferred embodiment, the area of section perpendicular to its axis of the guide channel is along its axle
Line is open from described first and is gradually reduced to the direction of the described second opening.
In the utility model preferred embodiment, the section along its axis direction of the guide channel is circle.
In the utility model preferred embodiment, the section along its axis direction of the guide channel is square.
In the utility model preferred embodiment, position and the center of the screen cloth main body where second opening
Position is corresponding.
In the utility model preferred embodiment, the Screen assemblies also include screen frame, and the sieve unit is arranged on
In the screen frame.
In the utility model preferred embodiment, the Screen assemblies also include clip, the screen frame be provided with it is multiple,
Annular slot is formed at the link position of the adjacent screen frame, the rack is connected in the annular slot, and the rack
Outer peripheral face and the annular slot bottom land between be provided with sealing joint strip；The clip be clamped on the adjacent screen frame it is outer and
Shelter from the connection gap of the adjacent screen frame；Described in the opposite side relative with the guiding piece positioned at the screen cloth main body
Screen cloth at the contact position of the rack with being provided with seal washer.
In the utility model preferred embodiment, the Screen assemblies also include lid, the center of the lid
Place is provided with feeding mouth, and the lid is mounted on the rack on upper strata.
In the utility model preferred embodiment, the Screen assemblies also include multiple rewinding tanks, multiple rewindings
Tank connects one to one in multiple sieve units.
Based on above-mentioned second purpose, the utility model provides a kind of powder sieving system, including described Screen assemblies.
The beneficial effect of the utility model embodiment is：
In summary, the utility model embodiment provides a kind of Screen assemblies, and its is simple and reasonable, is easy to manufacture to add
Work, install with easy to use, meanwhile, the Screen assemblies pass through screening during powder sieving is carried out, from screen cloth main body
The material fallen afterwards can be put together to drop on next stage Screening Network and be sieved again, and material is done with waving for screen(ing) machine
Spiral gradually opens motion, and screening effect is good, is not easily blocked screen cloth main body.It is specific as follows：
The Screen assemblies that the present embodiment provides, include screen cloth main body, for installing the rack of screen cloth main body, and in thing
It is used for the guide that directing material concentrates material in material dropping process.When being sieved, material is introduced into upper screen
Main body, in the presence of screen(ing) machine, material is completed to sieve for the first time in screen cloth main body, by the material of screen cloth main body from guide
The first opening enter in guide channel, and fall on guiding wall, material slides along guiding wall, and from the second opening
Fall, drop into next stage sieve unit, because material is more concentrated in the presence of guiding wall, drop into next stage screen cloth
Material in main body is concentrated, and material is spinned under the effect of waving of screen(ing) machine and gradually opens motion, and the screening effect of material is good, and is sieving
Material can be kept in motion for a long time during point, i.e., spinned on screen cloth and gradually open motion, during material screening not
A certain region is easily rested on, both improves screening effect, while is not easily blocked screen cloth main body.
The powder sieving system that the present embodiment provides includes above-mentioned Screen assemblies, has all excellent of above-mentioned Screen assemblies
Point.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the schematic diagram of the powder sieving system of the utility model embodiment；
Fig. 2 is the screen cloth main body of the utility model embodiment and the connection diagram of rack；
Fig. 3 be Fig. 2 in A-A to schematic cross-sectional view；
Fig. 4 is the schematic diagram of the rack of the utility model embodiment；
Fig. 5 is the schematic cross-sectional view of the guide of the utility model embodiment；
Fig. 6 is the schematic diagram of the Screen assemblies of the utility model embodiment.
Icon：100- sieve units；110- racks；The annulus of 111- first；The annulus of 112- second；120- screen cloth masters
Body；130- guides；131- guiding walls；132- first is open；133- second is open；200- screen frames；210- conically shapeds
Portion；220- circular cylinders portion；300- lids；310- feed openings；400- clips；500- sealing joint strips；600- sealing gaskets
Circle；700- rewinding tanks.
Embodiment
In actual production, using traditional circular impact screen or the swing sieve that shakes, clogging is also easy to produce in screening,
And exist and yield poorly, screen cloth service life is short, the problem of frequently changing.In addition, while production efficiency is reduced, also increase
Multi-pass operation and the quality unstability factor brought, largely have impact on the quality fluctuation of aviation 3D printing powder,
Form the quality unstability factor of follow-up 3D printing process.
In consideration of it, inventor devises a kind of Screen assemblies and powder sieving system, by below screen cloth main body 120
Guide 130 is set, dropped into after powder sieving process from screen cloth main body 120 on guide 130, by leading for guide 130
To effect, powder pools together, and when being sieved on dropping into next stage screen cloth main body 120, powder can spin gradually
Motion is opened, the screening effect of powder is good, is not easily blocked screen cloth.
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of.
Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
, it is necessary to explanation, the orientation of the instruction such as term " on ", " under ", " interior ", " outer " in description of the present utility model
Or position relationship be based on orientation shown in the drawings or position relationship, or the utility model product using when usually put
Orientation or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply signified dress
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model
Limitation.In addition, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relatively important
Property.
In description of the present utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " installation ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
Referring to Fig. 1, present embodiments providing a kind of powder sieving system, include Screen assemblies and screen(ing) machine (in figure
It is not shown), screen(ing) machine drive connection Screen assemblies, Screen assemblies is done oscillating motion.It should be noted that sieve is prior art,
Its operation principle and concrete structure are not elaborated in the present embodiment.
Referring to Fig. 1, Screen assemblies include sieve unit 100, screen frame 200, lid 300, clip 400, sealing joint strip
500th, seal washer 600 and rewinding tank 700.
Fig. 2-Fig. 4 is referred to, each sieve unit 100 includes rack 110, screen cloth main body 120 and guide 130.
Refer to Fig. 3 and Fig. 4, rack 110 is annular shape, and rack 110 includes integrally formed first annulus 111 and the
Two annulus 112, the section configuration of the first annulus 111 is rectangular-shaped, and the end surface shape of the second annulus 112 is rectangular-shaped, the first circle
Ring 111 is coaxially disposed with the second annulus 112, and the second annulus 112 is located on the end face of the first annulus 111, the first annulus 111
The inner peripheral surface of inner peripheral surface and the second annulus 112 is located on the same face of cylinder, and the outer circumference surface of the first annulus 111 is justified along first
The outer circumference surface of outwardly second annulus 112 of radial direction of ring 111, the i.e. section configuration of rack 110 are L-shaped.It is optional
, the end face of the outer circumference surface of the first annulus 111 and the periphery side face support of the second annulus 112 is arranged to the conical surface.
Referring to Fig. 2, screen cloth main body 120 is circle, mesh is provided with screen cloth main body 120.Screen cloth main body 120 is arranged on
On rack 110, the external diameter of screen cloth main body 120 is equal with the diameter of the inner peripheral surface of rack 110, the outward flange of screen cloth main body 120
Inner peripheral surface with rack 110 by way of bonding is connected, and optionally, screen cloth main body 120 is arranged on into the second annulus 112
On inner peripheral surface.
Obviously, in actual use, the specification of screen cloth main body 120 selects on demand, i.e., is selected according to being actually needed
The screen cloth main body 120 of different-diameter mesh, realizes different grades of screening.
Referring to Fig. 5, guide 130 is tubular structure, guide 130 is provided with guide channel and with leading to positioned at guiding
First opening 132 at road both ends and the second opening 133, guide channel is surrounded by guiding wall 131.The bore of first opening 132 is big
In the bore of the second opening 133, the first opening 132 is located at the lower section of screen cloth main body 120, for accepting from screen cloth main body 120
The material fallen in mesh, the material entered from the first opening 132 slides along guiding wall 131, and slides at the second opening 133
And skidded off at the second opening 133.
Guide 130 is cylinder-like structure, structure and screen cloth main body 120 and the structure phase of rack 110 of guide 130
Adapt to, the cross sectional shape of its axis of the mistake of guide 130 be isosceles trapezoid, namely the first opening 132 and second is open and 133 is
Circular open, the guide channel of guide 130 is circle perpendicular to the section of its axis direction, and guiding wall 131 is circular conical surface,
The pore size of guide channel is gradually reduced along its axis direction from the direction of the first opening 132 to the second opening 133, guide
130 be in funnel-form.Guide 130 first opening 132 where one end be bonded on rack 110, the axis of guide 130 with
The axis collinear of screen cloth main body 120, the center of circle of the second opening 133 of guide 130 are located on the axis of screen cloth main body 120,
Center position of the projection along its axis direction of i.e. second opening 133 positioned at screen cloth main body 120.
Referring to Fig. 6, screen frame 200 is cylindrical shape, screen frame 200 is annular perpendicular to the section of its axis direction, is sieved
Frame 200 is used to install rack 110, and multiple screen frames 200 are arranged in an overlapping arrangement, are formd at the link position of adjacent screen frame 200
Annular slot, the circle that is shaped as perpendicular to its section of annular slot, the axis of the axis and screen frame 200 of annular slot are total to
Line.Optionally, the both ends along its axis direction of screen frame 200 be respectively arranged with the conically shaped portion 210 turned up and with conically shaped portion
The circular cylinder portion 220 of 210 end connection, the bearing of trend in circular cylinder portion 220 is with the bearing of trend of screen frame 200 on the contrary, taper
Cylinder portion 210, circular cylinder portion 220 and screen frame 200 are coaxially disposed.
Referring to Fig. 1, lid 300 is circular lid, the axis of screen cloth main body 120 crosses the center of circle of lid 300, on lid 300
Feed openings 310 are provided with, feed openings 310 are located at the center of lid 300.The lid of lid 300 is mounted in positioned at the superiors
In screen cloth main body 120, lid 300 is connected with screen frame 200.
Clip 400 has rounded clamping mouth and two clamping ends, and two clamping ends are close to each other to reduce clamping mouth
Bore so that realize will be locked positioned at the intraoral screen frame 200 of clamping.
The powder sieving system that the present embodiment provides, including multilayer screen cloth main body 120, the mesh of multilayer screen cloth main body 120
Aperture is gradually reduced from feed end to direction of discharge, realizes the function of fine screen after first primary dcreening operation.Every layer of screen cloth main body 120 is arranged on
On one rack 110, screen cloth main body 120 is adhesively fixed with rack 110.One rack is installed between two neighboring screen frame 200
110, the rack 110 is connected in annular slot, meanwhile, in the end face of the second annulus 112 of rack 110 and corresponding screen frame
Seal washer 600 is provided between 200, is arranged a clip 400 outside adjacent screen frame 200, adjacent screen frame 200 passes through clip 400
It is in clamping connection, and sealing joint strip 500, sealing joint strip 500 is provided between the outer circumference surface and adjacent screen frame 200 of rack 110
With the collective effect of seal washer 600, the sealing of sieve unit 100 is added, avoids powder leakage, and avoid external environment condition
Powder quality on the dust and gases affect screen cloth main body 120 of entrance, in addition, in actual screening process, whole device is done
With screen frame 200 relative motion, fluid sealant can occur for oscillating motion, the sealing joint strip 500 between screen frame 200 and rack 110
Abrasion can be entered in the powder of screen cloth main body 120 by the space between rack 110 and screen frame 200 caused by bar 500,
And then contaminated powders, therefore, seal washer 600 is provided with the present embodiment between rack 110 and screen frame 200, is effectively improved
Abrasion enters screen cloth main body 120 caused by sealing joint strip 500, and the powder in screen cloth main body 120 is not easy to be contaminated.
In screening process, powder material enters from the feed openings 310 on lid 300, and powder enters screen cloth main body
On 120 and positioned at the medium position of screen cloth main body 120, when screen(ing) machine moves and drives Screen assemblies to do oscillating motion, powder is in spiral shell
Motion is gradually opened in rotation, and screening effect is good, and material can be kept in motion for a long time in screening process, be not easily blocked mesh.Together
When, the powder in upper screen main body 120 is introduced into guide 130 after screening, in the guiding of guide 130
Under effect, guiding wall 131 of the scattered powder along guide 130 pools together to be fallen at the second opening 133, is fallen on
In underlying screen cloth main body 120, and positioned at the medium position of screen cloth main body 120, now, powder material is in screen cloth main body
Spinned on 120 and gradually open motion, sieved, so circulation, realize the screening of powder.In whole screening process, powder is not easy
Mesh, the service life of screen cloth main body 120 length are blocked, and screening effect is good.
Obviously, when being sieved, the screening per one-level has the powder filtered, namely the powder that particle is larger, by mistake
The powder of filter is by pipeline transportation into corresponding rewinding tank 700.Powder material in rewinding tank 700 as needed can be with
Carry out repeating screening again, improve yield.
It should be noted that guide 130 is used for the guiding for realizing material, material is guided to the second opening 133, thing
Material more concentrate, therefore, in other embodiments, guide 130 is made up of four equicrural ladder plates, four equicrural ladder plates according to
Secondary connection surrounds tubular structure, and the side of four equicrural ladder plates surrounds the first opening 132, the opposite side of four equicrural ladder plates
The second opening 133 is surrounded, guide 130 is square perpendicular to the section of its axis direction.The bore of guide 130 along its
Axis direction is gradually reduced from the direction of the first opening 132 to the second opening 133, forms similar funnelform structure.It is corresponding,
Screen cloth main body 120 is square structure, and rack 110 is square structure, and rack 110 has the installing port of square shape.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. Screen assemblies, it is characterised in that including sieve unit, the sieve unit include rack, screen cloth main body and Guide, the screen cloth main body are installed in the rack, and the guide has the first opening and the second opening and surrounded The guiding wall of guide channel, the bore of first opening are more than the bore of the described second opening, and the guide is installed on institute State rack, first opening is configured to accept the material fallen from the screen cloth main body, the guiding wall be configured to accept from Material that first opening is fallen simultaneously guides material to second opening.
- 2. Screen assemblies according to claim 1, it is characterised in that the guide channel perpendicular to the section of its axis Area is open along its axis from described first and is gradually reduced to the direction of the described second opening.
- 3. Screen assemblies according to claim 2, it is characterised in that the section along its axis direction of the guide channel For circle.
- 4. Screen assemblies according to claim 2, it is characterised in that the section along its axis direction of the guide channel To be square.
- 5. according to the Screen assemblies described in claim any one of 1-4, it is characterised in that the position where second opening It is corresponding with the center of the screen cloth main body.
- 6. according to the Screen assemblies described in claim any one of 1-4, it is characterised in that the Screen assemblies also include screen frame, The sieve unit is arranged in the screen frame.
- 7. Screen assemblies according to claim 6, it is characterised in that the Screen assemblies also include clip, the screen frame It is provided with multiple, annular slot is formed at the link position of the adjacent screen frame, the rack is connected in the annular slot, And it is provided with sealing joint strip between the bottom land of the outer peripheral face of the rack and the annular slot；The clip is clamped on adjacent institute State outside screen frame and shelter from the connection gap of the adjacent screen frame；Positioned at the relative with the guiding piece another of the screen cloth main body The screen cloth of side at the contact position of the rack with being provided with seal washer.
- 8. Screen assemblies according to claim 7, it is characterised in that the Screen assemblies also include lid, the lid Center position be provided with feeding mouth, the lid is mounted on the rack on upper strata.
- 9. Screen assemblies according to claim 8, it is characterised in that the Screen assemblies also include multiple rewinding tanks, more The individual rewinding tank connects one to one in multiple sieve units.
- 10. a kind of powder sieving system, it is characterised in that including the Screen assemblies according to claim any one of 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720867066.XU CN207013284U (en) | 2017-07-17 | 2017-07-17 | Screen assemblies and powder sieving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720867066.XU CN207013284U (en) | 2017-07-17 | 2017-07-17 | Screen assemblies and powder sieving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207013284U true CN207013284U (en) | 2018-02-16 |
Family
ID=61484366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720867066.XU Active CN207013284U (en) | 2017-07-17 | 2017-07-17 | Screen assemblies and powder sieving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207013284U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109127396A (en) * | 2018-08-16 | 2019-01-04 | 芜湖卓越纳米新材料股份有限公司 | A kind of screening plant of calcium carbonate powder semi-finished product |
| CN116786412A (en) * | 2023-08-28 | 2023-09-22 | 新乡市先锋振动机械有限公司 | Circular swinging screen |
-
2017
- 2017-07-17 CN CN201720867066.XU patent/CN207013284U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109127396A (en) * | 2018-08-16 | 2019-01-04 | 芜湖卓越纳米新材料股份有限公司 | A kind of screening plant of calcium carbonate powder semi-finished product |
| CN116786412A (en) * | 2023-08-28 | 2023-09-22 | 新乡市先锋振动机械有限公司 | Circular swinging screen |
| CN116786412B (en) * | 2023-08-28 | 2023-11-03 | 新乡市先锋振动机械有限公司 | Circular swinging screen |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiong Xiaojing Inventor before: Wu Xinhua Inventor before: Mei Junfa Inventor before: Xiong Xiaojing |
|
| CB03 | Change of inventor or designer information | ||
| CP02 | Change in the address of a patent holder |
Address after: 215000 No. 9, Shek Yang Road, hi tech Zone, Suzhou, Jiangsu Patentee after: Suzhou three peak Laser Technology Co., Ltd. Address before: 215000 811, room 2, new Tianxiang Commercial Plaza, 388 Suya Road, Wuzhong District Suzhou Industrial Park, Suzhou, Jiangsu Patentee before: Suzhou three peak Laser Technology Co., Ltd. |
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| CP02 | Change in the address of a patent holder |